fix: dependencies

This reverts commit e7c359c1e0e21a8aeea391fd5b2cd6316526d42c.

.github/workflows/appimage.yml

@@ -7,10 +7,6 @@ on:
         description: 'The tag name for the release'
         required: true
         type: string
-      upload_url:
-        description: 'The upload URL for the release'
-        required: true
-        type: string
 
   workflow_dispatch:
     inputs:
@@ -18,10 +14,6 @@ on:
         description: 'The tag name for the release'
         required: true
         type: string
-      upload_url:
-        description: 'The upload URL for the release'
-        required: true
-        type: string
 
 jobs:
   build-linux-package:
@@ -113,11 +105,6 @@ jobs:
         shell: bash
 
       - name: Upload Linux Release Asset
-        uses: actions/upload-release-asset@v1
-        with:
-          upload_url: ${{ inputs.upload_url }}
-          asset_path: ${{ env.APPIMAGE_NAME }}
-          asset_name: ${{ env.APPIMAGE_NAME }}
-          asset_content_type: application/octet-stream
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: gh release upload "${{ inputs.tag_name }}" "${{ env.APPIMAGE_NAME }}" --clobber

.github/workflows/bundle.yml

@@ -10,15 +10,16 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
-          ref: ${{ github.head_ref }}
+          ref: ${{ github.event.pull_request.head.repo.full_name == github.repository && github.head_ref || github.event.pull_request.head.sha }}
       - uses: lnbits/lnbits/.github/actions/prepare@dev
         with:
           python-version: "3.10"
           node-version: "24.x"
           npm: true
-      - run: make bundle
-      - name: Commit and push bundle changes
+      - name: Build and commit bundle (same-repo PR)
+        if: github.event.pull_request.head.repo.full_name == github.repository
         run: |
+          make bundle
           git config user.name "alan"
           git config user.email "alan@lnbits.com"
           git add lnbits/static
@@ -27,3 +28,6 @@ jobs:
           fi
           git commit -m "chore: make bundle [skip ci]"
           git push
+      - name: Check bundle is up-to-date (fork PR)
+        if: github.event.pull_request.head.repo.full_name != github.repository
+        run: make checkbundle

.github/workflows/regtest.yml

@@ -66,6 +66,7 @@ jobs:
           BOLTZ_MNEMONIC: abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about
           LNBITS_MAX_OUTGOING_PAYMENT_AMOUNT_SATS: 1000000000
           LNBITS_MAX_INCOMING_PAYMENT_AMOUNT_SATS: 1000000000
+          LNBITS_FUNDING_SOURCE_PAY_INVOICE_WAIT_SECONDS: ${{ inputs.backend-wallet-class == 'CoreLightningRestWallet' && 60 || 5 }}
           ECLAIR_PASS: lnbits
           PYTHONUNBUFFERED: 1
           DEBUG: true

.github/workflows/release-rc.yml

@@ -12,8 +12,6 @@ jobs:
 
   release:
     runs-on: ubuntu-24.04
-    outputs:
-      upload_url: ${{ steps.get_upload_url.outputs.upload_url }}
     steps:
       - uses: actions/checkout@v4
       - name: Create github pre-release
@@ -22,14 +20,6 @@ jobs:
           tag: ${{ github.ref_name }}
         run: |
           gh release create "$tag" --prerelease --generate-notes --draft
-      - id: get_upload_url
-        name: Get upload url of Github release
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          tag: ${{ github.ref_name }}
-        run: |
-          upload_url=$(gh release view "$tag" --json uploadUrl -q ".uploadUrl")
-          echo "upload_url=$upload_url" >> "$GITHUB_OUTPUT"
 
   docker:
     if: github.repository == 'lnbits/lnbits'
@@ -74,4 +64,3 @@ jobs:
     uses: ./.github/workflows/appimage.yml
     with:
       tag_name: ${{ github.ref_name }}
-      upload_url: ${{ needs.release.outputs.upload_url }}

.github/workflows/release.yml

@@ -13,8 +13,6 @@ jobs:
 
   release:
     runs-on: ubuntu-24.04
-    outputs:
-      upload_url: ${{ steps.get_upload_url.outputs.upload_url }}
     steps:
       - uses: actions/checkout@v4
       - name: Create github release
@@ -23,14 +21,6 @@ jobs:
           tag: ${{ github.ref_name }}
         run: |
           gh release create "$tag" --generate-notes --draft
-      - id: get_upload_url
-        name: Get upload url of Github release
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          tag: ${{ github.ref_name }}
-        run: |
-          upload_url=$(gh release view "$tag" --json uploadUrl -q ".uploadUrl")
-          echo "upload_url=$upload_url" >> "$GITHUB_OUTPUT"
 
   docker:
     if: github.repository == 'lnbits/lnbits'
@@ -85,4 +75,3 @@ jobs:
     uses: ./.github/workflows/appimage.yml
     with:
       tag_name: ${{ github.ref_name }}
-      upload_url: ${{ needs.release.outputs.upload_url }}

docs/guide/installation.md

@@ -51,7 +51,7 @@ nav_order: 1
 sudo apt-get install jq libfuse2
 wget $(curl -s https://api.github.com/repos/lnbits/lnbits/releases/latest | jq -r '.assets[] | select(.name | endswith(".AppImage")) | .browser_download_url') -O LNbits-latest.AppImage
 chmod +x LNbits-latest.AppImage
-LNBITS_ADMIN_UI=true HOST=0.0.0.0 PORT=5000 ./LNbits-latest.AppImage # most system settings are now in the admin UI, but pass additional .env variables here
+LNBITS_ADMIN_UI=true HOST=0.0.0.0 PORT=5000 AUTH_HTTPS_ONLY=false ./LNbits-latest.AppImage # most system settings are now in the admin UI, but pass additional .env variables here
 ```
 
 - LNbits will create a folder for DB and extension files **in the same directory** as the AppImage.
@@ -285,10 +285,7 @@ but you can also set the env variables or pass command line arguments:
 
 ```sh
 # .env variables are currently passed when running, but LNbits can be managed with the admin UI.
-LNBITS_ADMIN_UI=true ./result/bin/lnbits --port 9000 --host 0.0.0.0
-
-# Once you have created a user, you can set as the super_user
-SUPER_USER=be54db7f245346c8833eaa430e1e0405 LNBITS_ADMIN_UI=true ./result/bin/lnbits --port 9000
+LNBITS_ADMIN_UI=true AUTH_HTTPS_ONLY=false ./result/bin/lnbits --port 9000 --host 0.0.0.0
 ```
 
 > ![NOTE](https://img.shields.io/badge/NOTE-3b82f6?labelColor=494949)

lnbits/app.py

@@ -23,29 +23,40 @@ from lnbits.core.crud import (
     get_installed_extensions,
     update_installed_extension_state,
 )
+from lnbits.core.crud.audit import delete_expired_audit_entries
 from lnbits.core.crud.extensions import create_installed_extension
-from lnbits.core.helpers import get_extension_type, migrate_extension_database
+from lnbits.core.helpers import migrate_extension_database
 from lnbits.core.models.notifications import NotificationType
 from lnbits.core.services.extensions import deactivate_extension, get_valid_extensions
-from lnbits.core.services.notifications import enqueue_admin_notification
-from lnbits.core.services.payments import check_pending_payments
+from lnbits.core.services.funding_source import (
+    check_balance_delta_changed,
+    check_server_balance_against_node,
+)
+from lnbits.core.services.notifications import (
+    dispatch_payment_notification,
+    enqueue_admin_notification,
+    process_next_notification,
+)
+from lnbits.core.services.payments import (
+    check_pending_payments,
+    fundingsource_invoice_producer,
+)
 from lnbits.core.tasks import (
     audit_queue,
     collect_exchange_rates_data,
-    purge_audit_data,
-    run_by_the_minute_tasks,
-    wait_for_audit_data,
-    wait_for_paid_invoices,
-    wait_notification_messages,
+    notify_server_status,
+    process_next_audit_entry,
+    refresh_extension_cache,
+)
+from lnbits.core.wasm_ext.routes.register import register_wasm_extension
+from lnbits.core.wasm_ext.wasm.events import dispatch_wasm_invoice_paid
+from lnbits.core.wasm_ext.wasm.loader import (
+    is_wasm_extension_id,
 )
 from lnbits.exceptions import register_exception_handlers
 from lnbits.helpers import version_parse
+from lnbits.llms_txt import create_llms_txt_route
 from lnbits.settings import settings
-from lnbits.tasks import (
-    cancel_all_tasks,
-    create_permanent_task,
-    register_invoice_listener,
-)
 from lnbits.utils.cache import cache
 from lnbits.utils.logger import (
     configure_logger,
@@ -68,7 +79,7 @@ from .middleware import (
     add_profiler_middleware,
     add_ratelimit_middleware,
 )
-from .tasks import internal_invoice_listener, invoice_listener, run_interval
+from .task_manager import task_manager
 
 
 async def startup(app: FastAPI):
@@ -102,6 +113,9 @@ async def startup(app: FastAPI):
     # register core routes
     init_core_routers(app)
 
+    # register llms.txt endpoint for AI agents
+    create_llms_txt_route(app)
+
     # initialize tasks
     register_async_tasks()
 
@@ -129,7 +143,7 @@ async def shutdown():
     settings.lnbits_running = False
 
     # shutdown event
-    cancel_all_tasks()
+    task_manager.cancel_all_tasks()
 
     # wait a bit to allow them to finish, so that cleanup can run without problems
     await asyncio.sleep(0.1)
@@ -162,6 +176,7 @@ def create_app() -> FastAPI:
 
     # Allow registering new extensions routes without direct access to the `app` object
     core_app_extra.register_new_ext_routes = register_new_ext_routes(app)
+    core_app_extra.register_new_wasm_ext_routes = register_new_wasm_ext_routes(app)
     core_app_extra.register_new_ratelimiter = register_new_ratelimiter(app)
 
     # register static files
@@ -408,6 +423,13 @@ def register_new_ext_routes(app: FastAPI) -> Callable:
     return register_new_ext_routes_fn
 
 
+def register_new_wasm_ext_routes(app: FastAPI) -> Callable:
+    def register_new_wasm_ext_routes_fn(ext_id: str):
+        register_wasm_extension(app, ext_id)
+
+    return register_new_wasm_ext_routes_fn
+
+
 def register_new_ratelimiter(app: FastAPI) -> Callable:
     def register_new_ratelimiter_fn():
         limiter = Limiter(
@@ -423,8 +445,6 @@ def register_new_ratelimiter(app: FastAPI) -> Callable:
 
 def register_ext_tasks(ext: Extension) -> None:
     """Register extension async tasks."""
-    if ext.extension_type == "wasm":
-        return
     ext_module = importlib.import_module(ext.module_name)
 
     if hasattr(ext_module, f"{ext.code}_start"):
@@ -434,43 +454,6 @@ def register_ext_tasks(ext: Extension) -> None:
 
 def register_ext_routes(app: FastAPI, ext: Extension) -> None:
     """Register FastAPI routes for extension."""
-    if ext.extension_type != "wasm":
-        ext.extension_type = get_extension_type(ext.code) or ext.extension_type
-    if ext.extension_type == "wasm":
-        settings.activate_extension_paths(ext.code, ext.upgrade_hash, [])
-        try:
-            register_wasm_ext_routes = None
-            for module_name in (
-                "wasm.wasm_host.extension_host",
-                "lnbits.extensions.wasm.wasm_host.extension_host",
-            ):
-                try:
-                    module = importlib.import_module(module_name)
-                except Exception:
-                    logger.warning(
-                        f"Could not import module {module_name} for wasm extension "
-                        f"{ext.code}."
-                    )
-                    continue
-                register_wasm_ext_routes = getattr(
-                    module, "register_wasm_ext_routes", None
-                )
-                if register_wasm_ext_routes is not None:
-                    break
-        except Exception:  # pragma: no cover - optional parent extension
-            logger.error(
-                "WASM host extension not installed; cannot register wasm extension "
-                f"{ext.code}."
-            )
-            return
-        if register_wasm_ext_routes is None:
-            logger.error(
-                "WASM host extension missing register_wasm_ext_routes; cannot "
-                f"register wasm extension {ext.code}."
-            )
-            return
-        register_wasm_ext_routes(app, ext)
-        return
     ext_module = importlib.import_module(ext.module_name)
 
     ext_route = getattr(ext_module, f"{ext.code}_ext")
@@ -500,37 +483,54 @@ async def check_and_register_extensions(app: FastAPI) -> None:
     await check_installed_extensions(app)
     for ext in await get_valid_extensions(False):
         try:
+            if is_wasm_extension_id(ext.code):
+                register_wasm_extension(app, ext.code)
+                continue
             register_ext_routes(app, ext)
             register_ext_tasks(ext)
         except Exception as exc:
             logger.error(f"Could not load extension `{ext.code}`: {exc!s}")
+            await update_installed_extension_state(ext_id=ext.code, active=False)
 
 
 def register_async_tasks() -> None:
 
-    create_permanent_task(wait_for_audit_data)
-    create_permanent_task(wait_notification_messages)
+    task_manager.init()
 
-    create_permanent_task(
-        run_interval(
-            settings.lnbits_funding_source_pending_interval_seconds,
-            check_pending_payments,
-        )
+    # listen to all incoming payments and dispatch payment notifications
+    # note: should be the first in task list for a bit quicker notifications
+    task_manager.register_invoice_listener(dispatch_payment_notification, "core")
+
+    # periodic tasks
+    task_manager.create_permanent_task(cache.invalidate_cache, interval=10)
+    task_manager.create_permanent_task(delete_expired_audit_entries, interval=60 * 60)
+    task_manager.create_permanent_task(
+        check_pending_payments,
+        interval=settings.lnbits_funding_source_pending_interval_seconds,
     )
-    create_permanent_task(invoice_listener)
-    create_permanent_task(internal_invoice_listener)
-    create_permanent_task(cache.invalidate_forever)
+    task_manager.create_permanent_task(
+        collect_exchange_rates_data,
+        interval=max(60, settings.lnbits_exchange_history_refresh_interval_seconds),
+    )
+    task_manager.create_permanent_task(check_balance_delta_changed, interval=60)
+    task_manager.create_permanent_task(
+        check_server_balance_against_node,
+        interval=60 * settings.lnbits_watchdog_interval_minutes,
+    )
+    task_manager.create_permanent_task(
+        notify_server_status,
+        interval=60 * 60 * settings.lnbits_notification_server_status_hours,
+    )
+    task_manager.create_permanent_task(refresh_extension_cache, interval=60)
 
-    # core invoice listener
-    invoice_queue: asyncio.Queue = asyncio.Queue()
-    register_invoice_listener(invoice_queue, "core")
-    create_permanent_task(lambda: wait_for_paid_invoices(invoice_queue))
-
-    create_permanent_task(run_by_the_minute_tasks)
-    create_permanent_task(purge_audit_data)
-    create_permanent_task(collect_exchange_rates_data)
+    # permanent tasks run in a loop, will be restarted if they fail
+    task_manager.create_permanent_task(fundingsource_invoice_producer)
+    task_manager.create_permanent_task(process_next_notification)
+    task_manager.create_permanent_task(process_next_audit_entry)
 
     # server logs for websocket
     if settings.lnbits_admin_ui:
         server_log_task = initialize_server_websocket_logger()
-        create_permanent_task(server_log_task)
+        task_manager.create_permanent_task(
+            server_log_task, name="server_websocket_logger"
+        )

lnbits/core/crud/payments.py

@@ -290,6 +290,7 @@ async def create_payment(
         webhook=data.webhook,
         fee=-abs(data.fee),
         tag=extra.get("tag", None),
+        extension=data.extension,
         extra=extra,
         labels=data.labels or [],
         external_id=data.external_id,

lnbits/core/crud/settings.py

@@ -8,11 +8,18 @@ from lnbits.db import dict_to_model
 from lnbits.settings import (
     AdminSettings,
     EditableSettings,
+    FundingSourcesSettings,
     SettingsField,
     SuperSettings,
     settings,
 )
 
+RESET_PRESERVED_SETTINGS = (
+    "lnbits_webpush_pubkey",
+    "lnbits_webpush_privkey",
+    *FundingSourcesSettings.__fields__,
+)
+
 
 async def get_super_settings() -> SuperSettings | None:
     data = await get_settings_by_tag("core")
@@ -69,16 +76,14 @@ async def delete_admin_settings(tag: str | None = "core") -> None:
 
 
 async def reset_core_settings() -> None:
-    await db.execute(
-        """
-        DELETE FROM system_settings WHERE tag = 'core'
-        AND id NOT IN (
-            'super_user',
-            'lnbits_webpush_pubkey',
-            'lnbits_webpush_privkey'
-        )
-        """,
-    )
+    core_settings = await get_settings_by_tag("core") or {}
+    super_user = await get_settings_field("super_user")
+    await delete_admin_settings()
+    if super_user:
+        await set_settings_field("super_user", super_user.value)
+    for field in RESET_PRESERVED_SETTINGS:
+        if field in core_settings:
+            await set_settings_field(field, core_settings[field])
 
 
 async def create_admin_settings(super_user: str, new_settings: dict) -> SuperSettings:

lnbits/core/helpers.py

@@ -1,7 +1,5 @@
 import importlib
-import json
 import re
-from pathlib import Path
 from typing import Any
 from urllib.parse import urlparse
 from uuid import UUID
@@ -17,6 +15,8 @@ from lnbits.core.crud import (
 from lnbits.core.db import db as core_db
 from lnbits.core.models import DbVersion
 from lnbits.core.models.extensions import InstallableExtension
+from lnbits.core.wasm_ext.storage.crud import migrate_wasm_extension_database
+from lnbits.core.wasm_ext.wasm.loader import is_wasm_extension_id
 from lnbits.db import COCKROACH, POSTGRES, SQLITE, Connection
 from lnbits.settings import settings
 
@@ -24,9 +24,16 @@ from lnbits.settings import settings
 async def migrate_extension_database(
     ext: InstallableExtension, current_version: DbVersion | None = None
 ):
-    if _is_wasm_extension(ext):
+    if is_wasm_extension_id(ext.id):
+        await migrate_wasm_extension_database(ext, current_version)
         return
+    else:
+        await migrate_py_extension_database(ext, current_version)
 
+
+async def migrate_py_extension_database(
+    ext: InstallableExtension, current_version: DbVersion | None = None
+):
     try:
         ext_migrations = importlib.import_module(f"{ext.module_name}.migrations")
         ext_db = importlib.import_module(ext.module_name).db
@@ -38,63 +45,6 @@ async def migrate_extension_database(
         await run_migration(ext_conn, ext_migrations, ext.id, current_version)
 
 
-def get_extension_type(ext_id: str, ext_dir: Path | None = None) -> str | None:
-    candidate_dirs = []
-    if ext_dir:
-        candidate_dirs.append(ext_dir)
-    candidate_dirs.extend(
-        [
-            Path(settings.lnbits_extensions_path, "extensions", ext_id),
-            Path(settings.lnbits_extensions_path, ext_id),
-            Path(settings.lnbits_path, "lnbits", "extensions", ext_id),
-            Path(settings.lnbits_path, "extensions", ext_id),
-            Path.cwd() / "lnbits" / "extensions" / ext_id,
-            Path.cwd() / "extensions" / ext_id,
-        ]
-    )
-
-    for base in candidate_dirs:
-        try:
-            conf_path = base / "config.json"
-            if not conf_path.is_file():
-                continue
-            with open(conf_path) as json_file:
-                config_json = json.load(json_file)
-            ext_type = config_json.get("extension_type")
-            if ext_type:
-                return ext_type
-        except Exception as exc:
-            logger.debug(
-                "Failed to read extension config.json for '{}' in '{}': {}",
-                ext_id,
-                base,
-                exc,
-            )
-
-    for base in candidate_dirs:
-        try:
-            wasm_dir = base / "wasm"
-            if (wasm_dir / "module.wasm").is_file() or (
-                wasm_dir / "module.wat"
-            ).is_file():
-                return "wasm"
-        except Exception as exc:
-            logger.debug(
-                "Failed to probe wasm files for '{}' in '{}': {}",
-                ext_id,
-                base,
-                exc,
-            )
-    return None
-
-
-def _is_wasm_extension(ext: InstallableExtension) -> bool:
-    if ext.meta and getattr(ext.meta, "extension_type", None) == "wasm":
-        return True
-
-    return get_extension_type(ext.id, ext.ext_dir) == "wasm"
-
-
 async def run_migration(
     db: Connection,
     migrations_module: Any,

lnbits/core/migrations.py

@@ -815,3 +815,12 @@ async def m045_add_external_id_to_payments(db: Connection):
         CREATE INDEX IF NOT EXISTS idx_payments_external_id
         ON apipayments (external_id);
         """)
+
+
+async def m046_add_permissions_to_installed_extensions(db: Connection):
+    """
+    Adds granted permissions to installed extensions.
+    """
+    await db.execute(
+        "ALTER TABLE installed_extensions ADD COLUMN permissions TEXT DEFAULT '[]'"
+    )

lnbits/core/models/extensions.py

@@ -6,7 +6,6 @@ import json
 import os
 import shutil
 import zipfile
-from asyncio.tasks import create_task
 from pathlib import Path
 from typing import Any
 
@@ -21,6 +20,7 @@ from lnbits.helpers import (
     version_parse,
 )
 from lnbits.settings import settings
+from lnbits.task_manager import task_manager
 from lnbits.utils.cache import cache
 
 
@@ -55,9 +55,10 @@ class GitHubRelease(BaseModel):
 
 
 class Manifest(BaseModel):
-    featured: list[str] = []
     extensions: list[ExplicitRelease] = []
     repos: list[GitHubRelease] = []
+    featured: list[str] = []
+    categories: dict[str, list[str]] = {}
 
 
 class GitHubRepoRelease(BaseModel):
@@ -76,6 +77,21 @@ class GitHubRepo(BaseModel):
     default_branch: str
 
 
+class ExtensionPermission(BaseModel):
+    id: str
+    label: str | None = None
+    description: str | None = None
+    policies: list[Any] | None = None
+
+    @staticmethod
+    def list_from_config(config_json: Mapping[str, Any]) -> list[ExtensionPermission]:
+        return [
+            ExtensionPermission.parse_obj(permission)
+            for permission in config_json.get("permissions") or []
+            if isinstance(permission, dict) and permission.get("id")
+        ]
+
+
 class ExtensionConfig(BaseModel):
     name: str
     short_description: str
@@ -83,6 +99,8 @@ class ExtensionConfig(BaseModel):
     warning: str | None = ""
     min_lnbits_version: str | None
     max_lnbits_version: str | None
+    extension_type: str | None = None
+    permissions: list[ExtensionPermission] = []
 
     def is_version_compatible(self) -> bool:
         return is_lnbits_version_ok(self.min_lnbits_version, self.max_lnbits_version)
@@ -115,8 +133,6 @@ class PayToEnableInfo(BaseModel):
 class UserExtensionInfo(BaseModel):
     paid_to_enable: bool | None = False
     payment_hash_to_enable: str | None = None
-    granted_permissions: list[str] | None = None
-    granted_payment_tags: list[str] | None = None
 
 
 class UserExtension(BaseModel):
@@ -145,11 +161,11 @@ class UserExtension(BaseModel):
 class Extension(BaseModel):
     code: str
     is_valid: bool
+    is_wasm: bool = False
     name: str | None = None
     short_description: str | None = None
     tile: str | None = None
     upgrade_hash: str | None = ""
-    extension_type: str | None = None
 
     @property
     def module_name(self) -> str:
@@ -162,6 +178,8 @@ class Extension(BaseModel):
 
     @property
     def is_upgrade_extension(self) -> bool:
+        if self.is_wasm:
+            return False
         return self.upgrade_hash != ""
 
     @classmethod
@@ -169,9 +187,10 @@ class Extension(BaseModel):
         return Extension(
             code=ext_info.id,
             is_valid=True,
+            is_wasm=ext_info.is_wasm,
             name=ext_info.name,
             short_description=ext_info.short_description,
-            tile=ext_info.icon,
+            tile=_extension_tile(ext_info),
             upgrade_hash=ext_info.hash if ext_info.ext_upgrade_dir.is_dir() else "",
         )
 
@@ -311,7 +330,6 @@ class ExtensionRelease(BaseModel):
 
     @classmethod
     async def fetch_release_details(cls, details_link: str) -> dict | None:
-
         try:
             async with httpx.AsyncClient() as client:
                 resp = await client.get(details_link)
@@ -336,6 +354,7 @@ class ExtensionMeta(BaseModel):
     dependencies: list[str] = []
     archive: str | None = None
     featured: bool = False
+    categories: list[str] = []
     paid_features: str | None = None
     has_paid_release: bool = False
     has_free_release: bool = False
@@ -350,6 +369,7 @@ class InstallableExtension(BaseModel):
     icon: str | None = None
     stars: int = 0
     meta: ExtensionMeta | None = None
+    permissions: list[ExtensionPermission] = []
 
     @property
     def hash(self) -> str:
@@ -402,6 +422,18 @@ class InstallableExtension(BaseModel):
             return False
         return self.meta.pay_to_enable.required is True
 
+    @property
+    def is_wasm(self) -> bool:
+        config_path = Path(self.ext_dir, "config.json")
+        if not config_path.is_file():
+            return False
+        try:
+            with open(config_path, encoding="utf-8") as json_file:
+                config_json = json.load(json_file)
+        except Exception:
+            return False
+        return config_json.get("extension_type") == "wasm"
+
     async def download_archive(self):
         logger.info(f"Downloading extension {self.name} ({self.installed_version}).")
         ext_zip_file = self.zip_path
@@ -434,6 +466,22 @@ class InstallableExtension(BaseModel):
                 os.remove(ext_zip_file)
             raise AssertionError("File hash missmatch. Will not install.")
 
+    def load_archive_config(self) -> dict[str, Any]:
+        if not self.zip_path.is_file():
+            return {}
+
+        try:
+            with zipfile.ZipFile(self.zip_path, "r") as archive:
+                config_name = _archive_config_name(archive.namelist())
+                if not config_name:
+                    return {}
+                with archive.open(config_name) as config_file:
+                    config = json.load(config_file)
+        except Exception as exc:
+            raise ValueError(f"Cannot read extension config for '{self.id}'.") from exc
+
+        return config if isinstance(config, dict) else {}
+
     def extract_archive(self):
         logger.info(f"Extracting extension {self.name} ({self.installed_version}).")
         Path(settings.lnbits_extensions_upgrade_path).mkdir(parents=True, exist_ok=True)
@@ -612,6 +660,7 @@ class InstallableExtension(BaseModel):
                     version=version,
                     short_description=config_json.get("short_description"),
                     icon=config_json.get("tile"),
+                    permissions=ExtensionPermission.list_from_config(config_json),
                     meta=ExtensionMeta(
                         installed_release=ExtensionRelease(
                             name=ext_id,
@@ -644,7 +693,10 @@ class InstallableExtension(BaseModel):
 
         if cache_value.older_than(10 * 60) or post_refresh_cache:
             # refresh cache in background if older than 10 minutes or requested
-            create_task(cls._refresh_installable_extensions_cache())
+            task_manager.create_task(
+                cls._refresh_installable_extensions_cache(),
+                "refresh_installable_extensions_cache",
+            )
 
         extension_list = cache_value.value  # type: ignore
         return extension_list
@@ -683,6 +735,11 @@ class InstallableExtension(BaseModel):
 
                     meta = ext.meta or ExtensionMeta()
                     meta.featured = ext.id in manifest.featured
+                    meta.categories = [
+                        category
+                        for category, ext_ids in manifest.categories.items()
+                        if ext.id in ext_ids
+                    ]
                     ext.meta = meta
                     extension_list += [ext]
 
@@ -698,6 +755,11 @@ class InstallableExtension(BaseModel):
                     ext.check_release_updates(release)
                     meta = ext.meta or ExtensionMeta()
                     meta.featured = ext.id in manifest.featured
+                    meta.categories = [
+                        category
+                        for category, ext_ids in manifest.categories.items()
+                        if ext.id in ext_ids
+                    ]
                     ext.meta = meta
                     extension_list += [ext]
             except Exception as e:
@@ -792,6 +854,7 @@ class CreateExtension(BaseModel):
     version: str
     cost_sats: int | None = 0
     payment_hash: str | None = None
+    permissions: list[ExtensionPermission] = []
 
 
 class ExtensionDetailsRequest(BaseModel):
@@ -844,3 +907,21 @@ def icon_to_github_url(source_repo: str, path: str | None) -> str:
     _, _, *rest = path.split("/")
     tail = "/".join(rest)
     return f"https://github.com/{source_repo}/raw/main/{tail}"
+
+
+def wasm_extension_icon_url(ext_id: str) -> str:
+    return f"/ext-assets/{ext_id}/assets/icon.png"
+
+
+def _extension_tile(ext_info: InstallableExtension) -> str | None:
+    if ext_info.is_wasm:
+        return wasm_extension_icon_url(ext_info.id)
+    return ext_info.icon
+
+
+def _archive_config_name(names: list[str]) -> str | None:
+    for name in names:
+        path = PurePosixPath(name)
+        if len(path.parts) == 2 and path.name == "config.json":
+            return name
+    return None

lnbits/core/models/misc.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
-from collections.abc import Callable
+from collections.abc import Awaitable, Callable
+from typing import Any
 
 from pydantic import BaseModel
 
@@ -9,9 +10,34 @@ def _do_nothing(*_):
     pass
 
 
+async def _do_nothing_async(_: Any) -> None:
+    pass
+
+
 class CoreAppExtra:
     register_new_ext_routes: Callable = _do_nothing
+    register_new_wasm_ext_routes: Callable = _do_nothing
     register_new_ratelimiter: Callable
+    dispatch_extension_invoice_paid: Callable[[Any], Awaitable[None]] = (
+        _do_nothing_async
+    )
+
+    def __init__(self) -> None:
+        self.wasm_extension_registry = WasmExtensionRegistry()
+
+
+class WasmExtensionRegistry:
+    def __init__(self) -> None:
+        self._extensions: dict[str, Any] = {}
+
+    def register(self, extension: Any) -> None:
+        self._extensions[extension.id] = extension
+
+    def get(self, ext_id: str) -> Any | None:
+        return self._extensions.get(ext_id)
+
+    def list(self) -> list[Any]:
+        return list(self._extensions.values())
 
 
 class ConversionData(BaseModel):

lnbits/core/models/payments.py

@@ -54,6 +54,7 @@ class CreatePayment(BaseModel):
     amount_msat: int
     memo: str
     extra: dict | None = {}
+    extension: str | None = None
     preimage: str | None = None
     expiry: datetime | None = None
     webhook: str | None = None
@@ -140,22 +141,18 @@ class Payment(BaseModel):
         )
 
     # DEPRECATED: in v1.5.0, use service check_payment_status instead
-    async def check_status(
-        self, skip_internal_payment_notifications: bool | None = False
-    ) -> PaymentStatus:
+    async def check_status(self) -> PaymentStatus:
         logger.warning("payment.check_status() is deprecated.")
         from lnbits.core.services.payments import check_payment_status
 
-        return await check_payment_status(self, skip_internal_payment_notifications)
+        return await check_payment_status(self)
 
     # DEPRECATED: in v1.5.0, use service check_payment_status instead
-    async def check_fiat_status(
-        self, skip_internal_payment_notifications: bool | None = False
-    ) -> FiatPaymentStatus:
+    async def check_fiat_status(self) -> FiatPaymentStatus:
         logger.warning("payment.check_fiat_status() is deprecated.")
         from lnbits.core.services.fiat_providers import check_fiat_status
 
-        return await check_fiat_status(self, skip_internal_payment_notifications)
+        return await check_fiat_status(self)
 
 
 class PaymentFilters(FilterModel):
@@ -263,6 +260,7 @@ class CreateInvoice(BaseModel):
     )
     expiry: int | None = None
     extra: dict | None = None
+    extension: str | None = None
     webhook: str | None = None
     bolt11: str | None = None
     lnurl_withdraw: LnurlWithdrawResponse | None = None

lnbits/core/services/extensions.py

@@ -17,14 +17,23 @@ from lnbits.core.crud.extensions import (
     update_installed_extension,
 )
 from lnbits.core.helpers import migrate_extension_database
+from lnbits.core.wasm_ext.api.permissions import validate_wasm_extension_permissions
+from lnbits.core.wasm_ext.wasm.loader import is_wasm_extension_id
 from lnbits.db import Connection
 from lnbits.settings import settings
 
-from ..models.extensions import Extension, ExtensionMeta, InstallableExtension
+from ..models.extensions import (
+    Extension,
+    ExtensionMeta,
+    ExtensionPermission,
+    InstallableExtension,
+)
 
 
 async def install_extension(
-    ext_info: InstallableExtension, skip_download: bool | None = False
+    ext_info: InstallableExtension,
+    skip_download: bool | None = False,
+    granted_permissions: list[ExtensionPermission] | None = None,
 ) -> Extension:
 
     ext_info.meta = ext_info.meta or ExtensionMeta()
@@ -44,6 +53,11 @@ async def install_extension(
     if not skip_download:
         await ext_info.download_archive()
 
+    extension_config = ext_info.load_archive_config()
+    ext_info.permissions = validate_wasm_extension_permissions(
+        ext_info, granted_permissions, extension_config
+    )
+
     ext_info.extract_archive()
 
     db_version = await get_db_version(ext_info.id)
@@ -61,7 +75,8 @@ async def install_extension(
         # call stop while the old routes are still active
         await stop_extension_background_work(ext_info.id)
 
-    await start_extension_background_work(ext_info.id)
+    if not extension.is_wasm:
+        await start_extension_background_work(ext_info.id)
 
     return extension
 
@@ -87,6 +102,11 @@ async def uninstall_extension(ext_id: str):
 
 
 async def activate_extension(ext: Extension):
+    if ext.is_wasm:
+        core_app_extra.register_new_wasm_ext_routes(ext.code)
+        await update_installed_extension_state(ext_id=ext.code, active=True)
+        return
+
     core_app_extra.register_new_ext_routes(ext)
     await update_installed_extension_state(ext_id=ext.code, active=True)
     await start_extension_background_work(ext.code)
@@ -103,6 +123,9 @@ async def stop_extension_background_work(ext_id: str) -> bool:
     Stop background work for extension (like asyncio.Tasks, WebSockets, etc).
     Extension must expose a `myextension_stop()` function if it is starting tasks.
     """
+    if is_wasm_extension_id(ext_id):
+        return True
+
     upgrade_hash = settings.extension_upgrade_hash(ext_id)
     ext = Extension(code=ext_id, is_valid=True, upgrade_hash=upgrade_hash)
 
@@ -135,6 +158,9 @@ async def start_extension_background_work(ext_id: str) -> bool:
     Extension CAN expose a `myextension_start()` function if it is starting tasks.
     Extension MUST expose a `myextension_stop()` in that case.
     """
+    if is_wasm_extension_id(ext_id):
+        return False
+
     upgrade_hash = settings.extension_upgrade_hash(ext_id)
     ext = Extension(code=ext_id, is_valid=True, upgrade_hash=upgrade_hash)
 

lnbits/core/services/fiat_providers.py

@@ -8,7 +8,7 @@ import httpx
 from loguru import logger
 
 from lnbits.core.crud import get_wallet
-from lnbits.core.crud.payments import create_payment
+from lnbits.core.crud.payments import create_payment, update_payment
 from lnbits.core.models import CreatePayment, Payment, PaymentState
 from lnbits.core.models.misc import SimpleStatus
 from lnbits.db import Connection
@@ -20,6 +20,7 @@ from lnbits.fiat.base import (
     FiatPaymentSuccessStatus,
 )
 from lnbits.settings import settings
+from lnbits.task_manager import task_manager
 
 
 async def handle_fiat_payment_confirmation(
@@ -36,9 +37,7 @@ async def handle_fiat_payment_confirmation(
         logger.warning(e)
 
 
-async def check_fiat_status(
-    payment: Payment, skip_internal_payment_notifications: bool | None = False
-) -> FiatPaymentStatus:
+async def check_fiat_status(payment: Payment) -> FiatPaymentStatus:
     if not payment.is_internal:
         return FiatPaymentPendingStatus()
     if payment.success:
@@ -58,14 +57,11 @@ async def check_fiat_status(
         return FiatPaymentPendingStatus()
     fiat_status = await fiat_provider.get_invoice_status(checking_id)
 
-    if skip_internal_payment_notifications:
-        return fiat_status
-
     if fiat_status.success:
-        # notify receivers asynchronously
-        from lnbits.tasks import internal_invoice_queue
-
-        await internal_invoice_queue.put(payment.checking_id)
+        payment.status = PaymentState.SUCCESS.value
+        await update_payment(payment)
+        await handle_fiat_payment_confirmation(payment)
+        task_manager.internal_invoice_queue.put_nowait(payment)
 
     return fiat_status
 

lnbits/core/services/funding_source.py

@@ -66,6 +66,8 @@ async def check_server_balance_against_node():
 
 
 async def check_balance_delta_changed():
+    if settings.notification_balance_delta_threshold_sats <= 0:
+        return
     status = await get_balance_delta()
     if settings.latest_balance_delta_sats is None:
         settings.latest_balance_delta_sats = status.delta_sats

lnbits/core/services/notifications.py

@@ -74,7 +74,7 @@ async def send_admin_notification(
     message: str,
     message_type: str | None = None,
 ) -> None:
-    return await send_notification(
+    return await send_notification_in_background(
         settings.lnbits_telegram_notifications_chat_id,
         settings.lnbits_nostr_notifications_identifiers,
         settings.lnbits_email_notifications_to_emails,
@@ -97,7 +97,7 @@ async def send_user_notification(
         if user_notifications.nostr_identifier
         else []
     )
-    return await send_notification(
+    return await send_notification_in_background(
         user_notifications.telegram_chat_id,
         nostr_identifiers,
         email_address,
@@ -222,12 +222,29 @@ async def send_email(
     msg["Subject"] = subject
     msg.attach(MIMEText(message, "plain"))
     username = username if len(username) > 0 else from_email
-    with smtplib.SMTP(server, port) as smtp_server:
-        smtp_server.starttls()
-        smtp_server.login(username, password)
-        smtp_server.sendmail(from_email, to_emails, msg.as_string())
+
+    def _send() -> bool:
+        with smtplib.SMTP(server, port) as smtp_server:
+            smtp_server.starttls()
+            smtp_server.login(username, password)
+            smtp_server.sendmail(from_email, to_emails, msg.as_string())
         return True
 
+    try:
+        return await asyncio.to_thread(_send)
+    except Exception as e:
+        logger.warning(f"Sending Email failed. {e!s}")
+        return False
+
+
+async def dispatch_payment_notification(payment: Payment) -> None:
+    """
+    This worker dispatches the payment notifications.
+    """
+    wallet = await get_wallet(payment.wallet_id)
+    if wallet:
+        await send_payment_notification(wallet, payment)
+
 
 async def dispatch_webhook(payment: Payment):
     """
@@ -294,6 +311,27 @@ def send_payment_notification_in_background(wallet: Wallet, payment: Payment):
         logger.warning(f"Error sending payment notification: {e}")
 
 
+async def send_notification_in_background(
+    telegram_chat_id: str | None,
+    nostr_identifiers: list[str] | None,
+    email_addresses: list[str] | None,
+    message: str,
+    message_type: str | None = None,
+):
+    try:
+        create_task(
+            send_notification(
+                telegram_chat_id,
+                nostr_identifiers,
+                email_addresses,
+                message,
+                message_type,
+            )
+        )
+    except Exception as e:
+        logger.warning(f"Error sending notification in background: {e}")
+
+
 async def send_ws_payment_notification(wallet: Wallet, payment: Payment):
     # TODO: websocket message should be a clean payment model
     # await websocket_manager.send(wallet.inkey, payment.json())

lnbits/core/services/payments.py

@@ -13,13 +13,13 @@ from lnbits.core.crud.payments import get_daily_stats
 from lnbits.core.db import db
 from lnbits.core.models import PaymentDailyStats, PaymentFilters
 from lnbits.core.models.payments import CreateInvoice
-from lnbits.core.services.fiat_providers import handle_fiat_payment_confirmation
 from lnbits.db import Connection, Filters
 from lnbits.decorators import check_user_extension_access
 from lnbits.exceptions import InvoiceError, PaymentError, UnsupportedError
 from lnbits.fiat import get_fiat_provider
 from lnbits.helpers import check_callback_url
 from lnbits.settings import settings
+from lnbits.task_manager import task_manager
 from lnbits.utils.crypto import fake_privkey, random_secret_and_hash, verify_preimage
 from lnbits.utils.exchange_rates import fiat_amount_as_satoshis, satoshis_amount_as_fiat
 from lnbits.wallets import fake_wallet, get_funding_source
@@ -215,6 +215,7 @@ async def create_wallet_invoice(wallet_id: str, data: CreateInvoice) -> Payment:
             unhashed_description=unhashed_description,
             expiry=data.expiry,
             extra=data.extra,
+            extension=data.extension,
             webhook=data.webhook,
             internal=data.internal,
             payment_hash=data.payment_hash,
@@ -260,6 +261,7 @@ async def create_invoice(
     webhook: str | None = None,
     internal: bool | None = False,
     payment_hash: str | None = None,
+    extension: str | None = None,
     labels: list[str] | None = None,
     external_id: str | None = None,
     conn: Connection | None = None,
@@ -343,6 +345,7 @@ async def create_invoice(
         expiry=invoice.expiry_date,
         memo=memo,
         extra=extra,
+        extension=extension,
         webhook=webhook,
         fee=invoice_response.fee_msat or 0,
         labels=labels,
@@ -514,9 +517,7 @@ async def update_wallet_balance(
         )
         payment.status = PaymentState.SUCCESS
         await update_payment(payment, conn=conn)
-        from lnbits.tasks import internal_invoice_queue_put
-
-        await internal_invoice_queue_put(payment.checking_id)
+        task_manager.internal_invoice_queue.put_nowait(payment)
 
 
 async def check_wallet_limits(
@@ -630,18 +631,14 @@ async def check_transaction_status(
     return await check_payment_status(payment)
 
 
-async def check_payment_status(
-    payment: Payment, skip_internal_payment_notifications: bool | None = False
-) -> PaymentStatus:
+async def check_payment_status(payment: Payment) -> PaymentStatus:
     if payment.is_internal:
         if payment.success:
             return PaymentSuccessStatus()
         if payment.failed:
             return PaymentFailedStatus()
         if payment.is_in and payment.fiat_provider:
-            fiat_status = await check_fiat_status(
-                payment, skip_internal_payment_notifications
-            )
+            fiat_status = await check_fiat_status(payment)
             return PaymentStatus(paid=fiat_status.paid)
         return PaymentPendingStatus()
     funding_source = get_funding_source()
@@ -783,13 +780,16 @@ async def _pay_internal_invoice(
     await update_payment(internal_payment, conn=conn)
     logger.success(f"internal payment successful {internal_payment.checking_id}")
 
-    await _send_payment_notification_in_background(wallet.id, payment, conn=conn)
-
-    # notify receiver asynchronously
-    from lnbits.tasks import internal_invoice_queue
+    await _send_payment_notification_in_background(
+        wallet.id, payment, conn=conn
+    )  # notify the sender
+    await _send_payment_notification_in_background(
+        internal_payment.wallet_id, internal_payment, conn=conn
+    )  # notify the receiver
 
+    # notify receiver asynchronously (extension listeners)
     logger.debug(f"enqueuing internal invoice {internal_payment.checking_id}")
-    await internal_invoice_queue.put(internal_payment.checking_id)
+    task_manager.internal_invoice_queue.put_nowait(internal_payment)
 
     return payment
 
@@ -826,16 +826,15 @@ async def _pay_external_invoice(
 
     fee_reserve_msat = fee_reserve(amount_msat, internal=False)
 
-    from lnbits.tasks import create_task
-
-    task = create_task(
-        _fundingsource_pay_invoice(checking_id, payment.bolt11, fee_reserve_msat)
+    task = task_manager.create_task(
+        _fundingsource_pay_invoice(checking_id, payment.bolt11, fee_reserve_msat),
+        f"fundingsource_pay_invoice_{checking_id}",
     )
 
     # make sure a hold invoice or deferred payment is not blocking the server
     wait_time = max(1, settings.lnbits_funding_source_pay_invoice_wait_seconds)
     try:
-        payment_response = await asyncio.wait_for(task, timeout=wait_time)
+        payment_response = await asyncio.wait_for(task.task, timeout=wait_time)
     except asyncio.TimeoutError:
         # return pending payment on timeout
         logger.debug(
@@ -1079,29 +1078,44 @@ async def _send_payment_notification_in_background(
     send_payment_notification_in_background(wallet, payment)
 
 
-async def update_invoice_callback(checking_id: str) -> Payment | None:
+async def update_invoice_from_paid_invoices_stream(checking_id: str) -> Payment | None:
     """
-    Takes a checking_id of an incoming payment, from either paid_invoices_stream()
-    or internal_invoice_queue. Checks its status, updates and returns it.
-    returns None if no payment was found or it not and incoming payment.
+    Takes a checking_id of an incoming payment from paid_invoices_stream()
+    Checks its status, updates its status and returns it.
+    returns None if no incoming payment was found or the status is not successful
     """
     payment = await get_standalone_payment(checking_id, incoming=True)
     if not payment:
-        logger.warning(f"No payment found for '{checking_id}'.")
+        logger.warning(f"No incoming payment found for '{checking_id}'.")
         return None
-    if not payment.is_in:
-        logger.warning(f"Payment '{checking_id}' is not incoming, skipping.")
+
+    status = await check_payment_status(payment)
+
+    if not status.success:
+        logger.error(
+            "Unexpected status response from paid_invoices_stream. Skipping update."
+        )
         return None
 
-    status = await check_payment_status(
-        payment, skip_internal_payment_notifications=True
-    )
     payment.fee = status.fee_msat or payment.fee
     # only overwrite preimage if status.preimage provides it
     payment.preimage = status.preimage or payment.preimage
-
     payment.status = PaymentState.SUCCESS
     payment = await update_payment(payment)
-    if payment.fiat_provider:
-        await handle_fiat_payment_confirmation(payment)
+
     return payment
+
+
+async def fundingsource_invoice_producer() -> None:
+    """
+    will collect all invoices that come directly from the backend wallet.
+
+    Called registered in the app startup sequence and run by taskmanager.
+    """
+    funding_source = get_funding_source()
+    async for checking_id in funding_source.paid_invoices_stream():
+        logger.info(f"got a payment notification {checking_id}")
+        payment = await update_invoice_from_paid_invoices_stream(checking_id)
+        if payment:
+            logger.success(f"fundingsource invoice {checking_id} settled")
+            task_manager.invoice_queue.put_nowait(payment)

lnbits/core/tasks.py

@@ -2,76 +2,44 @@ import asyncio
 
 from loguru import logger
 
-from lnbits.core.crud import (
-    create_audit_entry,
-    get_wallet,
-)
-from lnbits.core.crud.audit import delete_expired_audit_entries
+from lnbits.core.crud import create_audit_entry
 from lnbits.core.crud.payments import get_payments_status_count
 from lnbits.core.crud.users import get_accounts
 from lnbits.core.crud.wallets import get_wallets_count
+from lnbits.core.db import core_app_extra
 from lnbits.core.models.audit import AuditEntry
 from lnbits.core.models.extensions import InstallableExtension
 from lnbits.core.models.notifications import NotificationType
-from lnbits.core.services.funding_source import (
-    check_balance_delta_changed,
-    check_server_balance_against_node,
-    get_balance_delta,
-)
+from lnbits.core.services.funding_source import get_balance_delta
 from lnbits.core.services.notifications import (
     enqueue_admin_notification,
-    process_next_notification,
-    send_payment_notification,
 )
 from lnbits.db import Filters
 from lnbits.settings import settings
-from lnbits.utils.exchange_rates import btc_rates
+from lnbits.utils.cache import cache
+from lnbits.utils.exchange_rates import btc_price_from_aggregator, btc_rates
 
 audit_queue: asyncio.Queue[AuditEntry] = asyncio.Queue()
 
 
-async def run_by_the_minute_tasks() -> None:
-    minute_counter = 0
-    while settings.lnbits_running:
-        status_minutes = settings.lnbits_notification_server_status_hours * 60
-
-        if settings.notification_balance_delta_threshold_sats > 0:
-            try:
-                # runs by default every minute, the delta should not change that often
-                await check_balance_delta_changed()
-            except Exception as ex:
-                logger.error(ex)
-
-        if minute_counter % settings.lnbits_watchdog_interval_minutes == 0:
-            try:
-                await check_server_balance_against_node()
-            except Exception as ex:
-                logger.error(ex)
-
-        if minute_counter % status_minutes == 0:
-            try:
-                await _notify_server_status()
-            except Exception as ex:
-                logger.error(ex)
-
-        if minute_counter % 60 == 0:
-            try:
-                # initialize the list of all extensions
-                await InstallableExtension.get_installable_extensions(
-                    post_refresh_cache=True
-                )
-            except Exception as ex:
-                logger.error(ex)
-
-        minute_counter += 1
-        await asyncio.sleep(60)
+async def process_next_audit_entry() -> None:
+    """
+    Waits for audit entries to be pushed to the queue.
+    Then it inserts the entries into the DB.
+    """
+    data = await audit_queue.get()
+    await create_audit_entry(data)
 
 
-async def _notify_server_status() -> None:
+async def refresh_extension_cache() -> None:
+    # only refreshes every 10 minutes
+    await InstallableExtension.get_installable_extensions()
+
+
+async def notify_server_status() -> None:
     accounts = await get_accounts(filters=Filters(limit=0))
     wallets_count = await get_wallets_count()
     payments = await get_payments_status_count()
-
     status = await get_balance_delta()
     values = {
         "up_time": settings.lnbits_server_up_time,
@@ -88,76 +56,38 @@ async def _notify_server_status() -> None:
     enqueue_admin_notification(NotificationType.server_status, values)
 
 
-async def wait_for_paid_invoices(invoice_paid_queue: asyncio.Queue) -> None:
-    """
-    This worker dispatches events to all extensions and dispatches webhooks.
-    """
-    while settings.lnbits_running:
-        payment = await invoice_paid_queue.get()
-        logger.trace("received invoice paid event")
-        # payment notification
-        wallet = await get_wallet(payment.wallet_id)
-        if wallet:
-            await send_payment_notification(wallet, payment)
-
-
-async def wait_for_audit_data() -> None:
-    """
-    Waits for audit entries to be pushed to the queue.
-    Then it inserts the entries into the DB.
-    """
-    while settings.lnbits_running:
-        data = await audit_queue.get()
-        try:
-            await create_audit_entry(data)
-        except Exception as ex:
-            logger.warning(ex)
-            await asyncio.sleep(3)
-
-
-async def wait_notification_messages() -> None:
-
-    while settings.lnbits_running:
-        try:
-            await process_next_notification()
-        except Exception as ex:
-            logger.warning("Payment notification error", ex)
-            await asyncio.sleep(3)
-
-
-async def purge_audit_data() -> None:
-    """
-    Remove audit entries which have passed their retention period.
-    """
-    while settings.lnbits_running:
-        try:
-            await delete_expired_audit_entries()
-        except Exception as ex:
-            logger.warning(ex)
-
-        # clean every hour
-        await asyncio.sleep(60 * 60)
-
-
 async def collect_exchange_rates_data() -> None:
     """
     Collect exchange rates data. Used for monitoring only.
     """
-    while settings.lnbits_running:
-        currency = settings.lnbits_default_accounting_currency or "USD"
-        max_history_size = settings.lnbits_exchange_history_size
-        sleep_time = settings.lnbits_exchange_history_refresh_interval_seconds
-
-        if sleep_time > 0:
-            try:
-                rates = await btc_rates(currency)
-                if rates:
-                    rates_values = [r[1] for r in rates]
-                    lnbits_rate = sum(rates_values) / len(rates_values)
-                    rates.append(("LNbits", lnbits_rate))
-                settings.append_exchange_rate_datapoint(dict(rates), max_history_size)
-            except Exception as ex:
-                logger.warning(ex)
+    currency = settings.lnbits_default_accounting_currency or "USD"
+    max_history_size = settings.lnbits_exchange_history_size
+    try:
+        if (
+            settings.lnbits_price_aggregator_enabled
+            and settings.lnbits_price_aggregator_url
+        ):
+            price = await btc_price_from_aggregator(currency)
+            if price:
+                cache.set(
+                    f"btc-price-{currency}",
+                    price,
+                    expiry=settings.lnbits_exchange_rate_cache_seconds,
+                )
+                settings.append_exchange_rate_datapoint(
+                    {"Aggregator": price}, max_history_size
+                )
         else:
-            sleep_time = 60
-        await asyncio.sleep(sleep_time)
+            rates = await btc_rates(currency)
+            if rates:
+                rates_values = [r[1] for r in rates]
+                lnbits_rate = sum(rates_values) / len(rates_values)
+                rates.append(("LNbits", lnbits_rate))
+                cache.set(
+                    f"btc-price-{currency}",
+                    lnbits_rate,
+                    expiry=settings.lnbits_exchange_rate_cache_seconds,
+                )
+            settings.append_exchange_rate_datapoint(dict(rates), max_history_size)
+    except Exception as ex:
+        logger.warning(ex)

lnbits/core/views/admin_api.py

@@ -20,7 +20,7 @@ from lnbits.core.services.settings import dict_to_settings
 from lnbits.decorators import check_admin, check_super_user
 from lnbits.server import server_restart
 from lnbits.settings import AdminSettings, Settings, UpdateSettings, settings
-from lnbits.tasks import invoice_listeners
+from lnbits.task_manager import PublicTask, task_manager
 
 from .. import core_app_extra
 from ..crud import get_admin_settings, reset_core_settings, update_admin_settings
@@ -44,11 +44,10 @@ async def api_auditor():
     name="Monitor",
     description="show the current listeners and other monitoring data",
     dependencies=[Depends(check_admin)],
+    response_model=list[PublicTask],
 )
-async def api_monitor():
-    return {
-        "invoice_listeners": list(invoice_listeners.keys()),
-    }
+async def api_monitor() -> list[PublicTask]:
+    return task_manager.get_public_tasks()
 
 
 @admin_router.get(

lnbits/core/views/auth_api.py

@@ -36,6 +36,7 @@ from lnbits.decorators import (
     check_account_exists,
     check_admin,
     check_user_exists,
+    optional_user_id,
 )
 from lnbits.helpers import (
     create_access_token,
@@ -320,7 +321,10 @@ async def api_delete_user_api_token(
 
 @auth_router.get("/{provider}", description="SSO Provider")
 async def login_with_sso_provider(
-    request: Request, provider: str, user_id: str | None = None
+    request: Request,
+    provider: str,
+    user_id: str | None,
+    auth_user_id: str | None = Depends(optional_user_id),
 ):
     provider_sso = _new_sso(provider)
     if not provider_sso:
@@ -328,6 +332,8 @@ async def login_with_sso_provider(
             HTTPStatus.FORBIDDEN,
             f"Login by '{provider}' not allowed.",
         )
+    if user_id and user_id != auth_user_id:
+        raise HTTPException(HTTPStatus.FORBIDDEN, "User ID mismatch.")
 
     provider_sso.redirect_uri = str(request.base_url) + f"api/v1/auth/{provider}/token"
     with provider_sso:

lnbits/core/views/callback_api.py

@@ -357,16 +357,20 @@ async def handle_revolut_event(event: dict):
             return
 
         payment = await get_standalone_payment(f"fiat_revolut_order_{order_id}")
-        if not payment:
+        if payment:
+            await check_fiat_status(payment)
+            return
+
+        if event_type == "ORDER_COMPLETED":
             logger.warning(f"No payment found for Revolut order: '{order_id}'.")
             await _handle_revolut_subscription_order_paid(order_id)
             return
 
-        await check_fiat_status(payment)
+        logger.info(f"Ignoring Revolut authorised order without payment: '{order_id}'.")
         return
 
     if event_type == "SUBSCRIPTION_INITIATED":
-        await _handle_revolut_subscription_initiated(event)
+        logger.info("Revolut subscription initiated event received.")
         return
 
     if event_type in [
@@ -380,23 +384,6 @@ async def handle_revolut_event(event: dict):
     logger.warning(f"Unhandled Revolut event type: '{event_type}'.")
 
 
-async def _handle_revolut_subscription_initiated(event: dict):
-    subscription_id = event.get("subscription_id")
-    if not subscription_id:
-        subscription_id = event.get("id")
-
-    if not subscription_id:
-        logger.warning("Revolut subscription event missing subscription_id.")
-        return
-
-    fiat_provider = await _get_revolut_provider()
-    if not fiat_provider:
-        return
-
-    subscription = await fiat_provider.get_subscription(subscription_id)
-    await _handle_revolut_subscription(subscription, fiat_provider)
-
-
 async def _get_revolut_provider() -> RevolutWallet | None:
     fiat_provider = await get_fiat_provider("revolut")
     if not isinstance(fiat_provider, RevolutWallet):
@@ -406,7 +393,10 @@ async def _get_revolut_provider() -> RevolutWallet | None:
 
 
 async def _handle_revolut_subscription(
-    subscription: dict, fiat_provider: RevolutWallet
+    subscription: dict,
+    fiat_provider: RevolutWallet,
+    order_id: str | None = None,
+    order: dict | None = None,
 ):
     subscription_id = subscription.get("id")
     if not subscription_id:
@@ -420,16 +410,17 @@ async def _handle_revolut_subscription(
         logger.warning("Revolut subscription event missing LNbits metadata.")
         return
 
-    cycle_id = subscription.get("current_cycle_id")
-    if not cycle_id:
-        logger.warning("Revolut subscription missing current_cycle_id.")
-        return
-
-    cycle = await fiat_provider.get_subscription_cycle(subscription_id, cycle_id)
-    order_id = cycle.get("order_id")
     if not order_id:
-        logger.warning("Revolut subscription cycle missing order_id.")
-        return
+        cycle_id = subscription.get("current_cycle_id")
+        if not cycle_id:
+            logger.warning("Revolut subscription missing current_cycle_id.")
+            return
+
+        cycle = await fiat_provider.get_subscription_cycle(subscription_id, cycle_id)
+        order_id = cycle.get("order_id")
+        if not order_id:
+            logger.warning("Revolut subscription cycle missing order_id.")
+            return
 
     existing_payment = await get_standalone_payment(f"fiat_revolut_order_{order_id}")
     if existing_payment:
@@ -439,7 +430,8 @@ async def _handle_revolut_subscription(
         await check_fiat_status(existing_payment)
         return
 
-    order = await fiat_provider.get_order(order_id)
+    if not order:
+        order = await fiat_provider.get_order(order_id)
     amount_minor = order.get("amount")
     currency = (order.get("currency") or "").upper()
     if amount_minor is None or not currency:
@@ -447,7 +439,7 @@ async def _handle_revolut_subscription(
 
     extra = {
         **(reference.extra or {}),
-        "subscription_request_id": reference.subscription_request_id,
+        "subscription_request_id": subscription_id,
         "fiat_method": "subscription",
         "tag": reference.tag,
         "subscription": {
@@ -475,7 +467,9 @@ async def _handle_revolut_subscription_order_paid(order_id: str):
         return
 
     order = await fiat_provider.get_order(order_id)
-    if order.get("type") != "payment" or order.get("state") != "completed":
+    order_type = (order.get("type") or "").lower()
+    order_state = (order.get("state") or "").upper()
+    if order_type != "payment" or order_state != "COMPLETED":
         logger.warning(f"Revolut order is not a completed payment: '{order_id}'.")
         return
 
@@ -490,7 +484,9 @@ async def _handle_revolut_subscription_order_paid(order_id: str):
         logger.warning(f"Revolut subscription is not active: '{subscription_id}'.")
         return
 
-    await _handle_revolut_subscription_initiated(subscription)
+    await _handle_revolut_subscription(
+        subscription, fiat_provider, order_id=order_id, order=order
+    )
 
 
 async def _create_revolut_subscription_payment(

lnbits/core/views/extension_api.py

@@ -1,8 +1,6 @@
-import json
 import sys
 import traceback
 from http import HTTPStatus
-from pathlib import Path
 
 import httpx
 from bolt11 import decode as bolt11_decode
@@ -13,7 +11,6 @@ from loguru import logger
 from lnbits.core.crud.extensions import get_user_extensions
 from lnbits.core.crud.wallets import get_wallets_ids
 from lnbits.core.db import db
-from lnbits.core.helpers import get_extension_type
 from lnbits.core.models import (
     SimpleStatus,
 )
@@ -32,6 +29,7 @@ from lnbits.core.models.extensions import (
     ReleasePaymentInfo,
     UserExtension,
     UserExtensionInfo,
+    wasm_extension_icon_url,
 )
 from lnbits.core.models.users import Account, AccountId
 from lnbits.core.services import check_transaction_status, create_invoice
@@ -43,6 +41,7 @@ from lnbits.core.services.extensions import (
     install_extension,
     uninstall_extension,
 )
+from lnbits.core.wasm_ext.api.permissions import validate_extension_permissions
 from lnbits.db import Page
 from lnbits.decorators import (
     check_account_exists,
@@ -70,53 +69,6 @@ extension_router = APIRouter(
 )
 
 
-def _load_wasm_extension_config(ext_id: str) -> dict:
-    candidate_dirs = [
-        Path(settings.lnbits_extensions_path, "extensions", ext_id),
-        Path(settings.lnbits_path, "lnbits", "extensions", ext_id),
-    ]
-    for base in candidate_dirs:
-        conf_path = base / "config.json"
-        if not conf_path.is_file():
-            continue
-        try:
-            with open(conf_path) as json_file:
-                config = json.load(json_file)
-            return config if isinstance(config, dict) else {}
-        except Exception:
-            return {}
-    return {}
-
-
-def _ensure_wasm_permissions_saved(ext_id: str, user_ext: UserExtension) -> None:
-    if get_extension_type(ext_id) != "wasm":
-        return
-    config = _load_wasm_extension_config(ext_id)
-    required = [
-        permission.get("id")
-        for permission in config.get("permissions", [])
-        if isinstance(permission, dict) and permission.get("id")
-    ]
-    granted = user_ext.extra.granted_permissions if user_ext.extra else []
-    missing = [
-        permission for permission in required if permission not in (granted or [])
-    ]
-    if missing:
-        raise HTTPException(
-            HTTPStatus.BAD_REQUEST,
-            "Save WASM permissions before enabling this extension.",
-        )
-
-    payment_tags = config.get("payment_tags", [])
-    granted_tags = user_ext.extra.granted_payment_tags if user_ext.extra else []
-    has_granted_payment_tag = any(tag in (granted_tags or []) for tag in payment_tags)
-    if payment_tags and not has_granted_payment_tag:
-        raise HTTPException(
-            HTTPStatus.BAD_REQUEST,
-            "Select at least one WASM payment tag before enabling this extension.",
-        )
-
-
 @extension_router.post("", dependencies=[Depends(check_admin)])
 async def api_install_extension(data: CreateExtension):
     release = await InstallableExtension.get_extension_release(
@@ -139,7 +91,9 @@ async def api_install_extension(data: CreateExtension):
     )
 
     try:
-        extension = await install_extension(ext_info)
+        extension = await install_extension(
+            ext_info, granted_permissions=data.permissions
+        )
 
     except Exception as exc:
         logger.warning(exc)
@@ -247,8 +201,6 @@ async def api_enable_extension(
         user_ext = UserExtension(user=account_id.id, extension=ext_id, active=False)
         await create_user_extension(user_ext)
 
-    _ensure_wasm_permissions_saved(ext_id, user_ext)
-
     if account_id.is_admin_id or not ext.requires_payment:
         user_ext.active = True
         await update_user_extension(user_ext)
@@ -344,7 +296,6 @@ async def api_deactivate_extension(ext_id: str) -> SimpleStatus:
 
 @extension_router.delete("/{ext_id}", dependencies=[Depends(check_admin)])
 async def api_uninstall_extension(ext_id: str) -> SimpleStatus:
-
     extension = await get_installed_extension(ext_id)
     if not extension:
         raise HTTPException(
@@ -512,11 +463,19 @@ async def get_extension_release(org: str, repo: str, tag_name: str):
         if not config:
             return {}
 
+        permissions = validate_extension_permissions(config.name, config.permissions)
+
         return {
             "min_lnbits_version": config.min_lnbits_version,
             "is_version_compatible": config.is_version_compatible(),
             "warning": config.warning,
+            "extension_type": config.extension_type,
+            "permissions": [dict(permission) for permission in permissions],
         }
+    except ValueError as exc:
+        raise HTTPException(
+            status_code=HTTPStatus.BAD_REQUEST, detail=str(exc)
+        ) from exc
     except Exception as exc:
         raise HTTPException(
             status_code=HTTPStatus.INTERNAL_SERVER_ERROR, detail=str(exc)
@@ -588,9 +547,10 @@ async def extensions(account_id: AccountId = Depends(check_account_id_exists)):
     )
     installable_exts_ids = [e.id for e in installable_exts]
     installable_exts += [e for e in installed_exts if e.id not in installable_exts_ids]
+    installed_exts_by_id = {e.id: e for e in installed_exts}
 
     for e in installable_exts:
-        installed_ext = next((ie for ie in installed_exts if e.id == ie.id), None)
+        installed_ext = installed_exts_by_id.get(e.id)
         if installed_ext and installed_ext.meta:
             installed_release = installed_ext.meta.installed_release
             if installed_ext.meta.pay_to_enable and not account_id.is_admin_id:
@@ -611,47 +571,60 @@ async def extensions(account_id: AccountId = Depends(check_account_id_exists)):
             e.short_description = installed_ext.short_description
             e.icon = installed_ext.icon
 
-    extension_data = [
-        {
-            "id": ext.id,
-            "name": ext.name,
-            "icon": ext.icon,
-            "shortDescription": ext.short_description,
-            "stars": ext.stars,
-            "isFeatured": ext.meta.featured if ext.meta else False,
-            "dependencies": ext.meta.dependencies if ext.meta else "",
-            "isInstalled": ext.id in installed_exts_ids,
-            "hasDatabaseTables": next(
-                (True for version in db_versions if version.db == ext.id), False
-            ),
-            "isAvailable": ext.id in all_ext_ids,
-            "isAdminOnly": ext.id in settings.lnbits_admin_extensions,
-            "isActive": ext.id not in inactive_extensions,
-            "latestRelease": (
-                dict(ext.meta.latest_release)
-                if ext.meta and ext.meta.latest_release
-                else None
-            ),
-            "hasPaidRelease": ext.meta.has_paid_release if ext.meta else False,
-            "hasFreeRelease": ext.meta.has_free_release if ext.meta else False,
-            "paidFeatures": ext.meta.paid_features if ext.meta else False,
-            "installedRelease": (
-                dict(ext.meta.installed_release)
-                if ext.meta and ext.meta.installed_release
-                else None
-            ),
-            "payToEnable": (
-                dict(ext.meta.pay_to_enable)
-                if ext.meta and ext.meta.pay_to_enable
-                else {}
-            ),
-            "isPaymentRequired": ext.requires_payment,
-            "inProgress": False,
-            "selectedForUpdate": False,
-            "extensionType": get_extension_type(ext.id) or "python",
-        }
-        for ext in installable_exts
-    ]
+    extension_data = []
+    for ext in installable_exts:
+        installed_ext = installed_exts_by_id.get(ext.id)
+        is_wasm = installed_ext.is_wasm if installed_ext else ext.is_wasm
+        icon = wasm_extension_icon_url(ext.id) if is_wasm else ext.icon
+        permissions = (
+            validate_extension_permissions(
+                installed_ext.id, installed_ext.permissions, strict=False
+            )
+            if installed_ext
+            else []
+        )
+        extension_data.append(
+            {
+                "id": ext.id,
+                "name": ext.name,
+                "icon": icon,
+                "shortDescription": ext.short_description,
+                "stars": ext.stars,
+                "isFeatured": ext.meta.featured if ext.meta else False,
+                "categories": ext.meta.categories if ext.meta else [],
+                "dependencies": ext.meta.dependencies if ext.meta else "",
+                "isInstalled": ext.id in installed_exts_ids,
+                "hasDatabaseTables": next(
+                    (True for version in db_versions if version.db == ext.id), False
+                ),
+                "isAvailable": ext.id in all_ext_ids,
+                "isAdminOnly": ext.id in settings.lnbits_admin_extensions,
+                "isActive": ext.id not in inactive_extensions,
+                "latestRelease": (
+                    dict(ext.meta.latest_release)
+                    if ext.meta and ext.meta.latest_release
+                    else None
+                ),
+                "hasPaidRelease": ext.meta.has_paid_release if ext.meta else False,
+                "hasFreeRelease": ext.meta.has_free_release if ext.meta else False,
+                "paidFeatures": ext.meta.paid_features if ext.meta else False,
+                "installedRelease": (
+                    dict(ext.meta.installed_release)
+                    if ext.meta and ext.meta.installed_release
+                    else None
+                ),
+                "payToEnable": (
+                    dict(ext.meta.pay_to_enable)
+                    if ext.meta and ext.meta.pay_to_enable
+                    else {}
+                ),
+                "isPaymentRequired": ext.requires_payment,
+                "isWasm": is_wasm,
+                "permissions": [dict(permission) for permission in permissions],
+                "inProgress": False,
+                "selectedForUpdate": False,
+            }
+        )
     return extension_data
 
 

lnbits/core/wasm_ext/__init__.py

@@ -0,0 +1,24 @@
+from .api.host import ExtensionHostAPI
+from .api.models import ExtensionAPIMethod, ExtensionAPIMethodExport
+from .api.registry import (
+    extension_api_contract,
+    extension_api_method,
+    extension_api_permission_ids,
+    get_extension_api_method,
+    list_extension_api_methods,
+)
+from .api.runtime import ExtensionAPIHost
+from .wasm.loader import WasmExtension
+
+__all__ = [
+    "ExtensionAPIHost",
+    "ExtensionAPIMethod",
+    "ExtensionAPIMethodExport",
+    "ExtensionHostAPI",
+    "WasmExtension",
+    "extension_api_contract",
+    "extension_api_method",
+    "extension_api_permission_ids",
+    "get_extension_api_method",
+    "list_extension_api_methods",
+]

lnbits/core/wasm_ext/api/__init__.py

@@ -0,0 +1,22 @@
+from .host import ExtensionHostAPI
+from .models import ExtensionAPIMethod, ExtensionAPIMethodExport
+from .registry import (
+    extension_api_contract,
+    extension_api_method,
+    extension_api_permission_ids,
+    get_extension_api_method,
+    list_extension_api_methods,
+)
+from .runtime import ExtensionAPIHost
+
+__all__ = [
+    "ExtensionAPIHost",
+    "ExtensionAPIMethod",
+    "ExtensionAPIMethodExport",
+    "ExtensionHostAPI",
+    "extension_api_contract",
+    "extension_api_method",
+    "extension_api_permission_ids",
+    "get_extension_api_method",
+    "list_extension_api_methods",
+]

lnbits/core/wasm_ext/api/host.py

@@ -0,0 +1,582 @@
+from __future__ import annotations
+
+import json
+import logging
+import secrets
+import time
+from collections.abc import Iterable, Mapping
+from typing import Any
+
+from lnbits.helpers import sha256s
+
+from ..client.extensions import send_extension_api_request
+from ..storage.crud import (
+    storage_delete_row,
+    storage_get_paginated_rows,
+    storage_get_public_row,
+    storage_get_row,
+    storage_set_row,
+)
+from .models import (
+    CreateInvoicePublicRequest,
+    CreateInvoiceRequest,
+    CreateInvoiceResponse,
+    EmptyRequest,
+    ExtensionApiRequest,
+    HttpRequest,
+    HttpResponse,
+    ListUserWalletsResponse,
+    LogRequest,
+    LogResponse,
+    NowResponse,
+    PayInvoiceRequest,
+    PayInvoiceResponse,
+    RandomIdRequest,
+    RandomIdResponse,
+    StorageDeleteRequest,
+    StorageDeleteResponse,
+    StorageGetRequest,
+    StorageGetResponse,
+    StoragePaginatedRequest,
+    StoragePaginatedResponse,
+    StorageSetRequest,
+    StorageSetResponse,
+    UserWalletSummary,
+    WalletBalanceRequest,
+    WalletBalanceResponse,
+)
+from .registry import extension_api_method
+
+logger = logging.getLogger("lnbits.extensions")
+
+
+class ExtensionHostAPI:
+    def __init__(
+        self,
+        extension_id: str,
+        permissions: Iterable[Any],
+        *,
+        user_id: str | None = None,
+        access_token: str | None = None,
+        context: str = "user",
+        owner_id: str | None = None,
+    ) -> None:
+        self.extension_id = extension_id
+        self.permissions, self.permission_policies = self._permission_data(permissions)
+        self.user_id = user_id
+        self.access_token = access_token
+        self.context = context
+        self.owner_id = sha256s(user_id) if user_id else owner_id
+        from .utils import ExtensionAPIUtils
+
+        self.utils = ExtensionAPIUtils(self.extension_id, self.permissions)
+
+    @extension_api_method(
+        method_id="storage.get",
+        namespace="storage",
+        name="Get storage row",
+        host_name="storage_get",
+        sdk_name="get",
+        description="Read one row from an extension storage table.",
+        required_permission="ext.storage.read",
+        require_auth=True,
+    )
+    async def storage_get(self, request: StorageGetRequest) -> StorageGetResponse:
+        row = await storage_get_row(
+            self.extension_id,
+            request.table,
+            request.id,
+            self._require_owner_id(),
+        )
+        return StorageGetResponse(data_json=json.dumps(row) if row else None)
+
+    @extension_api_method(
+        method_id="storage.get_public",
+        namespace="storage",
+        name="Get public storage row",
+        host_name="storage_get_public",
+        sdk_name="getPublic",
+        description="Read one public row from an extension storage table.",
+        required_permission="ext.storage.read_public",
+        require_auth=False,
+    )
+    async def storage_get_public(
+        self, request: StorageGetRequest
+    ) -> StorageGetResponse:
+        public_fields = self._public_storage_fields(request.table)
+        row = await storage_get_public_row(self.extension_id, request.table, request.id)
+        if not row:
+            return StorageGetResponse()
+        public_row = {
+            field_name: value
+            for field_name, value in row.items()
+            if field_name in public_fields
+        }
+        # todo: check public fields filtering
+        return StorageGetResponse(data_json=json.dumps(public_row))
+
+    @extension_api_method(
+        method_id="storage.set",
+        namespace="storage",
+        name="Set storage row",
+        host_name="storage_set",
+        sdk_name="set",
+        description="Create or update one row in an extension storage table.",
+        required_permission="ext.storage.write",
+        require_auth=True,
+    )
+    async def storage_set(self, request: StorageSetRequest) -> StorageSetResponse:
+        await storage_set_row(
+            self.extension_id,
+            request.table,
+            request.data,
+            self._require_owner_id(),
+        )
+        return StorageSetResponse()
+
+    @extension_api_method(
+        method_id="storage.get_paginated",
+        namespace="storage",
+        name="Get paginated storage rows",
+        host_name="storage_get_paginated",
+        sdk_name="getPaginated",
+        description="Get filtered, searched, sorted, paginated storage rows.",
+        required_permission="ext.storage.read",
+        require_auth=True,
+    )
+    async def storage_get_paginated(
+        self, request: StoragePaginatedRequest
+    ) -> StoragePaginatedResponse:
+        page = await storage_get_paginated_rows(
+            self.extension_id,
+            request.table,
+            request.filters,
+            owner_id=self._require_owner_id(),
+            search=request.search,
+            search_fields=request.search_fields,
+            sort_by=request.sort_by,
+            descending=request.descending,
+            limit=request.limit,
+            offset=request.offset,
+        )
+        return StoragePaginatedResponse(
+            rows_json=json.dumps(page["data"]),
+            total=page["total"],
+        )
+
+    @extension_api_method(
+        method_id="storage.delete",
+        namespace="storage",
+        name="Delete storage row",
+        host_name="storage_delete",
+        sdk_name="delete",
+        description="Delete one row from an extension storage table.",
+        required_permission="ext.storage.write",
+        require_auth=True,
+    )
+    async def storage_delete(
+        self, request: StorageDeleteRequest
+    ) -> StorageDeleteResponse:
+        await storage_delete_row(
+            self.extension_id,
+            request.table,
+            request.id,
+            self._require_owner_id(),
+        )
+        return StorageDeleteResponse()
+
+    @extension_api_method(
+        method_id="wallet.create_invoice",
+        namespace="wallet",
+        name="Create invoice",
+        host_name="create_invoice",
+        sdk_name="createInvoice",
+        description="Create an incoming Lightning invoice for an allowed wallet.",
+        required_permission="wallet.create_invoice",
+        require_auth=True,
+    )
+    async def wallet_create_invoice(
+        self, request: CreateInvoiceRequest
+    ) -> CreateInvoiceResponse:
+        from lnbits.core.crud.wallets import get_wallet
+        from lnbits.core.models.payments import CreateInvoice
+        from lnbits.core.services.payments import create_payment_request
+
+        if not self.user_id:
+            raise PermissionError(
+                "Creating an invoice for this wallet requires an "
+                "authenticated user context."
+            )
+        wallet = await get_wallet(request.wallet_id)
+        if wallet is None or wallet.user != self.user_id:
+            raise PermissionError("Not your wallet.")
+
+        payment = await create_payment_request(
+            request.wallet_id,
+            CreateInvoice(
+                amount=request.amount,
+                unit=request.currency,
+                memo=request.memo,
+                extra=request.extra,
+                extension=self.extension_id,
+            ),
+        )
+        return CreateInvoiceResponse(
+            payment_hash=payment.payment_hash,
+            payment_request=payment.payment_request or payment.bolt11,
+            checking_id=payment.checking_id,
+        )
+
+    @extension_api_method(
+        method_id="wallet.create_invoice_public",
+        namespace="wallet",
+        name="Create public invoice",
+        host_name="create_invoice_public",
+        sdk_name="createInvoicePublic",
+        description="Create a public incoming Lightning invoice.",
+        required_permission="wallet.create_invoice_public",
+        require_auth=False,
+    )
+    async def wallet_create_invoice_public(
+        self, request: CreateInvoicePublicRequest
+    ) -> CreateInvoiceResponse:
+        from lnbits.core.models.payments import CreateInvoice
+        from lnbits.core.services.payments import create_payment_request
+
+        row: dict[str, Any] | None = None
+        wallet_field = ""
+        for policy in self._public_invoice_wallet_sources():
+            row = await storage_get_public_row(
+                self.extension_id,
+                policy["table"],
+                request.source_id,
+            )
+            if row:
+                wallet_field = policy["wallet_field"]
+                break
+
+        if not row:
+            raise PermissionError("Public invoice source was not found.")
+
+        wallet_id = row.get(wallet_field)
+        if not isinstance(wallet_id, str) or not wallet_id:
+            raise PermissionError("Public invoice source has no valid wallet.")
+
+        payment = await create_payment_request(
+            wallet_id,
+            CreateInvoice(
+                amount=request.amount,
+                unit=request.currency,
+                memo=request.memo,
+                extra={
+                    "tag": self.extension_id,
+                    "source_id": request.source_id,
+                    f"extra_{self.extension_id}": request.extra,
+                },
+                extension=self.extension_id,
+            ),
+        )
+        return CreateInvoiceResponse(
+            payment_hash=payment.payment_hash,
+            payment_request=payment.payment_request or payment.bolt11,
+            checking_id=payment.checking_id,
+        )
+
+    @extension_api_method(
+        method_id="wallet.list_user_wallets",
+        namespace="wallet",
+        name="List user wallets",
+        host_name="list_user_wallets",
+        sdk_name="listUserWallets",
+        description="List wallets available to the authenticated extension user.",
+        required_permission="wallet.list",
+    )
+    async def wallet_list_user_wallets(
+        self, request: EmptyRequest
+    ) -> ListUserWalletsResponse:
+        if not self.user_id:
+            raise PermissionError(
+                "Listing user wallets requires an authenticated user context."
+            )
+
+        from lnbits.core.crud.wallets import get_wallets
+
+        user_wallets = await get_wallets(self.user_id)
+        if user_wallets is None:
+            raise PermissionError(
+                "Listing user wallets requires an authenticated user context."
+            )
+        return ListUserWalletsResponse(
+            wallets=[
+                UserWalletSummary(id=w.id, name=w.name, currency=w.currency)
+                for w in user_wallets
+            ]
+        )
+
+    @extension_api_method(
+        method_id="wallet.balance",
+        namespace="wallet",
+        name="Read wallet balance",
+        host_name="wallet_balance",
+        sdk_name="balance",
+        description="Read the balance of a wallet available to the user.",
+        required_permission="wallet.balance.read",
+    )
+    async def wallet_balance(
+        self, request: WalletBalanceRequest
+    ) -> WalletBalanceResponse:
+        from lnbits.core.crud.wallets import get_wallet
+
+        if not self.user_id:
+            raise PermissionError(
+                "Reading a wallet balance requires an authenticated user context."
+            )
+
+        wallet = await get_wallet(request.wallet_id)
+        if wallet is None or wallet.user != self.user_id:
+            raise PermissionError("Reading this wallet balance is not allowed.")
+
+        withdrawable_msat = max(wallet.withdrawable_balance, 0)
+        fee_reserve_msat = max(wallet.balance_msat - withdrawable_msat, 0)
+        return WalletBalanceResponse(
+            wallet_id=wallet.id,
+            name=wallet.name,
+            currency=wallet.currency,
+            balance_msat=wallet.balance_msat,
+            balance_sat=wallet.balance,
+            withdrawable_msat=withdrawable_msat,
+            withdrawable_sat=withdrawable_msat // 1000,
+            fee_reserve_msat=fee_reserve_msat,
+            fee_reserve_sat=fee_reserve_msat // 1000,
+            can_send_payments=wallet.can_send_payments,
+        )
+
+    @extension_api_method(
+        method_id="wallet.pay_invoice",
+        namespace="wallet",
+        name="Pay invoice",
+        host_name="pay_invoice",
+        sdk_name="payInvoice",
+        description="Pay a Lightning invoice from a wallet available to the user.",
+        required_permission="wallet.pay_invoice",
+    )
+    async def wallet_pay_invoice(
+        self, request: PayInvoiceRequest
+    ) -> PayInvoiceResponse:
+        from lnbits.core.crud.wallets import get_wallet
+        from lnbits.core.services.payments import pay_invoice
+        from lnbits.exceptions import PaymentError
+
+        if not self.user_id:
+            raise PermissionError(
+                "Paying an invoice requires an authenticated user context."
+            )
+
+        wallet = await get_wallet(request.wallet_id)
+        if wallet is None or wallet.user != self.user_id:
+            raise PermissionError("Paying invoices from this wallet is not allowed.")
+
+        try:
+            payment = await pay_invoice(
+                wallet_id=request.wallet_id,
+                payment_request=request.payment_request,
+                max_sat=request.max_sat,
+                extra={"tag": self.extension_id, **request.extra},
+                description=request.description,
+                tag=self.extension_id,
+            )
+        except (PaymentError, ValueError) as exc:
+            return PayInvoiceResponse(ok=False, error=str(exc))
+
+        return PayInvoiceResponse(
+            ok=True,
+            checking_id=payment.checking_id,
+            payment_hash=payment.payment_hash,
+            status=payment.status,
+            amount_msat=abs(payment.amount),
+            fee_msat=abs(payment.fee),
+            pending=payment.pending,
+            success=payment.success,
+        )
+
+    @extension_api_method(
+        method_id="http.request",
+        namespace="http",
+        name="HTTP request",
+        host_name="http_request",
+        sdk_name="request",
+        description="Make an outbound HTTP request to an allowed host.",
+        required_permission="http.request",
+        require_auth=True,
+    )
+    async def http_request(self, request: HttpRequest) -> HttpResponse:
+        from ..client.http import send_extension_http_request
+
+        policies = self.permission_policies.get("http.request") or []
+        return await send_extension_http_request(self.extension_id, policies, request)
+
+    @extension_api_method(
+        method_id="extension.api.request",
+        namespace="extension",
+        name="Extension API request",
+        host_name="extension_api_request",
+        sdk_name="request",
+        description="Call an allowed installed extension API.",
+        required_permission="extension.api.request",
+        require_auth=True,
+    )
+    async def extension_api_request(self, request: ExtensionApiRequest) -> HttpResponse:
+
+        policies = self.permission_policies.get("extension.api.request") or []
+        return await send_extension_api_request(
+            self.extension_id,
+            policies,
+            self.user_id,
+            self.access_token,
+            request,
+        )
+
+    @extension_api_method(
+        method_id="system.random_id",
+        namespace="system",
+        name="Random ID",
+        host_name="random_id",
+        sdk_name="id",
+        description="Create a random extension-local identifier.",
+        require_auth=False,
+    )
+    async def system_random_id(self, request: RandomIdRequest) -> RandomIdResponse:
+        return RandomIdResponse(
+            id=f"{request.prefix}_{secrets.token_urlsafe(12).replace('-', '_')}"
+        )
+
+    @extension_api_method(
+        method_id="system.now",
+        namespace="system",
+        name="Current timestamp",
+        host_name="now",
+        sdk_name="now",
+        description="Return the current Unix timestamp.",
+        require_auth=False,
+    )
+    async def system_now(self, request: EmptyRequest) -> NowResponse:
+        return NowResponse(timestamp=int(time.time()))
+
+    @extension_api_method(
+        method_id="system.log",
+        namespace="system",
+        name="Log message",
+        host_name="log",
+        sdk_name="log",
+        description="Write a bounded message to the extension log.",
+        require_auth=False,
+    )
+    async def system_log(self, request: LogRequest) -> LogResponse:
+        log = getattr(logger, request.level)
+        log("extension:%s %s", self.extension_id, request.message)
+        return LogResponse()
+
+    @staticmethod
+    def _permission_data(
+        permissions: Iterable[Any],
+    ) -> tuple[set[str], dict[str, list[Any]]]:
+        permission_ids: set[str] = set()
+        policies: dict[str, list[Any]] = {}
+
+        for permission in permissions:
+            if isinstance(permission, str):
+                permission_ids.add(permission)
+                continue
+
+            permission_id: str | None = None
+            permission_policies: Any = None
+            if isinstance(permission, Mapping):
+                permission_id = permission.get("id")  # type: ignore[assignment]
+                permission_policies = permission.get("policies")
+            else:
+                permission_id = getattr(permission, "id", None)
+                permission_policies = getattr(permission, "policies", None)
+
+            if not permission_id:
+                continue
+            permission_ids.add(permission_id)
+            if isinstance(permission_policies, list):
+                policies[permission_id] = permission_policies
+
+        return permission_ids, policies
+
+    def _public_storage_fields(self, table: str) -> set[str]:
+        tables = self.permission_policies.get("ext.storage.read_public")
+        if not isinstance(tables, list) or not tables:
+            raise PermissionError(
+                "Public storage reads require policies for "
+                "'ext.storage.read_public'."
+            )
+
+        for table_policy in tables:
+            if not isinstance(table_policy, dict):
+                continue
+            if table_policy.get("table_name") != table:
+                continue
+            public_fields = table_policy.get("public_fields")
+            if not isinstance(public_fields, list) or not all(
+                isinstance(field, str) and field for field in public_fields
+            ):
+                raise PermissionError(
+                    f"Public storage table '{table}' has no valid public fields."
+                )
+            return set(public_fields)
+
+        raise PermissionError(f"Storage table '{table}' is not publicly readable.")
+
+    def _public_invoice_wallet_sources(self) -> list[dict[str, str]]:
+        policies = self.permission_policies.get("wallet.create_invoice_public")
+        if not isinstance(policies, list) or not policies:
+            raise PermissionError("Public invoice creation requires a policies list.")
+
+        sources: list[dict[str, str]] = []
+        for source_policy in policies:
+            if not isinstance(source_policy, dict):
+                raise PermissionError(
+                    "Public invoice creation policies must be objects."
+                )
+            table = source_policy.get("table")
+            wallet_field = source_policy.get("wallet_field")
+            if not isinstance(table, str) or not table:
+                raise PermissionError(
+                    "Public invoice creation requires a storage table policy."
+                )
+            if not isinstance(wallet_field, str) or not wallet_field:
+                raise PermissionError(
+                    "Public invoice creation requires a wallet field policy."
+                )
+            sources.append({"table": table, "wallet_field": wallet_field})
+
+        if not sources:
+            raise PermissionError(
+                "Public invoice creation requires at least one valid policy."
+            )
+        return sources
+
+    def require_permission(self, permission: str | None) -> None:
+        if permission and permission not in self.permissions:
+            raise PermissionError(
+                f"Extension '{self.extension_id}' is missing permission '{permission}'."
+            )
+
+    def has_authenticated_context(self) -> bool:
+        return bool(self.user_id) or self.context == "event"
+
+    def _require_owner_id(self) -> str:
+        if not self.owner_id:
+            raise PermissionError("Extension API method requires an owner context.")
+        return self.owner_id
+
+    def __repr__(self) -> str:
+        return (
+            "ExtensionHostAPI("
+            f"extension_id={self.extension_id!r}, "
+            f"context={self.context!r}, "
+            f"owner_id={self.owner_id!r}"
+            ")"
+        )

lnbits/core/wasm_ext/api/models.py

@@ -0,0 +1,360 @@
+import json
+from dataclasses import dataclass
+from typing import Any, Literal
+
+from pydantic import BaseModel, Field, root_validator
+
+
+@dataclass(frozen=True)
+class ExtensionAPIMethodExport:
+    method_id: str
+    namespace: str
+    name: str
+    host_interface: str
+    host_name: str
+    sdk_name: str
+    description: str
+    required_permission: str | None = None
+    require_auth: bool = True
+
+
+@dataclass(frozen=True)
+class ExtensionAPIMethod:
+    method_id: str
+    namespace: str
+    name: str
+    python_name: str
+    host_interface: str
+    host_name: str
+    sdk_name: str
+    description: str
+    request_model: type[BaseModel]
+    response_model: type[BaseModel]
+    required_permission: str | None = None
+    require_auth: bool = True
+
+    @property
+    def sdk_qualified_name(self) -> str:
+        return f"{self.namespace}.{self.sdk_name}"
+
+
+class EmptyRequest(BaseModel):
+    pass
+
+
+class StorageGetRequest(BaseModel):
+    table: str = Field(..., min_length=1, max_length=128)
+    id: str = Field(..., min_length=1, max_length=512)
+
+
+class StorageGetResponse(BaseModel):
+    data_json: str | None = None
+
+
+class StorageSetRequest(BaseModel):
+    table: str = Field(..., min_length=1, max_length=128)
+    data: dict[str, Any] = Field(default_factory=dict)
+
+    @root_validator(pre=True)
+    def parse_data_json(cls, values: dict[str, Any]) -> dict[str, Any]:
+        data_json = values.get("data_json")
+        if data_json is not None and "data" not in values:
+            values["data"] = json.loads(data_json)
+        return values
+
+
+class StorageSetResponse(BaseModel):
+    ok: bool = True
+
+
+class StoragePaginatedRequest(BaseModel):
+    table: str = Field(..., min_length=1, max_length=128)
+    filters: dict[str, Any] = Field(default_factory=dict)
+    search: str | None = Field(None, max_length=256)
+    search_fields: list[str] = Field(default_factory=list)
+    sort_by: str | None = Field(None, min_length=1, max_length=128)
+    descending: bool = False
+    limit: int = Field(25, ge=1, le=1000)
+    offset: int = Field(0, ge=0)
+
+    @root_validator(pre=True)
+    def parse_json_fields(cls, values: dict[str, Any]) -> dict[str, Any]:
+        filters_json = values.get("filters_json")
+        if filters_json is not None and "filters" not in values:
+            values["filters"] = json.loads(filters_json)
+
+        search_fields_json = values.get("search_fields_json")
+        if search_fields_json is not None and "search_fields" not in values:
+            values["search_fields"] = json.loads(search_fields_json)
+
+        if values.get("sort_by") == "":
+            values["sort_by"] = None
+        return values
+
+
+class StoragePaginatedResponse(BaseModel):
+    rows_json: str = "[]"
+    total: int = 0
+
+
+class StorageDeleteRequest(BaseModel):
+    table: str = Field(..., min_length=1, max_length=128)
+    id: str = Field(..., min_length=1, max_length=512)
+
+
+class StorageDeleteResponse(BaseModel):
+    ok: bool = True
+
+
+class CreateInvoiceRequest(BaseModel):
+    wallet_id: str = Field(..., min_length=1, max_length=128)
+    amount: float = Field(..., gt=0)
+    currency: str = Field("sat", min_length=1, max_length=8)
+    memo: str = Field(..., max_length=512)
+    tag: str = Field(..., min_length=1, max_length=64)
+    extra: dict[str, str] = Field(default_factory=dict)
+
+
+class CreateInvoicePublicRequest(BaseModel):
+    source_id: str = Field(
+        ...,
+        min_length=1,
+        max_length=512,
+        description="The source ID (entry id) of the wallet to create the invoice for.",
+    )
+    amount: float = Field(..., gt=0)
+    currency: str = Field(..., min_length=1, max_length=8)
+    memo: str = Field("", max_length=512)
+    extra: dict[str, Any] = Field(default_factory=dict)
+
+    @root_validator
+    def validate_extra_size(cls, values: dict[str, Any]) -> dict[str, Any]:
+        extra = values.get("extra") or {}
+        try:
+            encoded = json.dumps(extra, separators=(",", ":"))
+        except TypeError as exc:
+            raise ValueError("extra must be JSON serializable.") from exc
+        if len(encoded.encode()) > 4096:
+            raise ValueError("extra must not exceed 4096 bytes.")
+        values["extra"] = extra
+        return values
+
+
+class CreateInvoiceResponse(BaseModel):
+    payment_hash: str
+    payment_request: str
+    checking_id: str
+
+
+class UserWalletSummary(BaseModel):
+    id: str
+    name: str
+    currency: str | None = None
+
+
+class ListUserWalletsResponse(BaseModel):
+    wallets: list[UserWalletSummary] = Field(default_factory=list)
+
+
+class WalletBalanceRequest(BaseModel):
+    wallet_id: str = Field(..., min_length=1, max_length=128)
+
+
+class WalletBalanceResponse(BaseModel):
+    wallet_id: str
+    name: str
+    currency: str | None = None
+    balance_msat: int
+    balance_sat: int
+    withdrawable_msat: int
+    withdrawable_sat: int
+    fee_reserve_msat: int
+    fee_reserve_sat: int
+    can_send_payments: bool
+
+
+class PayInvoiceRequest(BaseModel):
+    wallet_id: str = Field(..., min_length=1, max_length=128)
+    payment_request: str = Field(..., min_length=1, max_length=8192)
+    max_sat: int | None = Field(None, gt=0)
+    description: str = Field("", max_length=512)
+    extra: dict[str, str] = Field(default_factory=dict)
+
+
+class PayInvoiceResponse(BaseModel):
+    ok: bool = True
+    error: str | None = None
+    checking_id: str | None = None
+    payment_hash: str | None = None
+    status: str | None = None
+    amount_msat: int = 0
+    fee_msat: int = 0
+    pending: bool = False
+    success: bool = False
+
+
+class HttpRequest(BaseModel):
+    method: Literal["DELETE", "GET", "HEAD", "PATCH", "POST", "PUT"] = "GET"
+    url: str = Field(..., min_length=1, max_length=2048)
+    headers: dict[str, str] = Field(default_factory=dict)
+    body: str | None = Field(None, max_length=65536)
+
+    @root_validator(pre=True)
+    def normalize_method(cls, values: dict[str, Any]) -> dict[str, Any]:
+        method = values.get("method")
+        if isinstance(method, str):
+            values["method"] = method.upper()
+        return values
+
+    @root_validator
+    def validate_headers_size(cls, values: dict[str, Any]) -> dict[str, Any]:
+        headers = values.get("headers") or {}
+        if len(headers) > 32:
+            raise ValueError("headers must not contain more than 32 entries.")
+        for key, value in headers.items():
+            if len(key) > 128 or len(value) > 4096:
+                raise ValueError("headers are too large.")
+        values["headers"] = headers
+        return values
+
+
+class HttpResponse(BaseModel):
+    status_code: int
+    headers: dict[str, str] = Field(default_factory=dict)
+    body: str = ""
+
+
+class ExtensionApiRequest(BaseModel):
+    extension_id: str = Field(..., min_length=1, max_length=128)
+    method: Literal["DELETE", "GET", "HEAD", "PATCH", "POST", "PUT"] = "GET"
+    path: str = Field(..., min_length=1, max_length=2048)
+    body: str | None = Field(None, max_length=65536)
+
+    @root_validator(pre=True)
+    def normalize_method(cls, values: dict[str, Any]) -> dict[str, Any]:
+        method = values.get("method")
+        if isinstance(method, str):
+            values["method"] = method.upper()
+        return values
+
+
+class CurrencyListResponse(BaseModel):
+    currencies: list[str] = Field(default_factory=list)
+
+
+class CurrencyRateRequest(BaseModel):
+    currency: str = Field(..., min_length=1, max_length=8)
+
+
+class CurrencyRateResponse(BaseModel):
+    rate: float
+    price: float
+
+
+class CurrencyConvertRequest(BaseModel):
+    amount: float = Field(..., gt=0)
+    from_currency: str = Field(..., alias="from", min_length=1, max_length=8)
+    to: str = Field(..., min_length=1, max_length=256)
+
+    class Config:
+        allow_population_by_field_name = True
+
+
+class CurrencyConvertResponse(BaseModel):
+    amounts: list[tuple[str, float]] = Field(default_factory=list)
+
+
+class FiatToSatsRequest(BaseModel):
+    amount: float = Field(..., gt=0)
+    currency: str = Field(..., min_length=1, max_length=8)
+
+
+class FiatToSatsResponse(BaseModel):
+    amount_sat: int
+
+
+class SatsToFiatRequest(BaseModel):
+    amount: float = Field(..., gt=0)
+    currency: str = Field(..., min_length=1, max_length=8)
+
+
+class SatsToFiatResponse(BaseModel):
+    amount: float
+
+
+class ServerHealthResponse(BaseModel):
+    server_time: int
+    up_time: str
+
+
+class Bolt11Request(BaseModel):
+    bolt11: str = Field(..., min_length=1, max_length=8192)
+
+
+class DecodeInvoiceResponse(BaseModel):
+    valid: bool = True
+    payment_hash: str | None = None
+    amount_msat: int | None = None
+    expiry: int | None = None
+    expires_at: int | None = None
+    memo: str | None = None
+
+
+class ValidateInvoiceResponse(BaseModel):
+    valid: bool
+    error: str | None = None
+
+
+class InvoicePaymentHashResponse(BaseModel):
+    payment_hash: str
+
+
+class InvoiceAmountMsatResponse(BaseModel):
+    amount_msat: int | None = None
+
+
+class InvoiceExpiryResponse(BaseModel):
+    expires_at: int | None = None
+
+
+class InvoiceMemoResponse(BaseModel):
+    memo: str | None = None
+
+
+class VerifyPreimageRequest(BaseModel):
+    preimage: str = Field(..., min_length=64, max_length=64)
+    payment_hash: str = Field(..., min_length=64, max_length=64)
+
+
+class VerifyPreimageResponse(BaseModel):
+    valid: bool
+
+
+class RandomSecretAndHashRequest(BaseModel):
+    length: int = Field(32, ge=16, le=64)
+
+
+class RandomSecretAndHashResponse(BaseModel):
+    secret: str
+    hash: str
+
+
+class RandomIdRequest(BaseModel):
+    prefix: str = Field(..., min_length=1, max_length=32)
+
+
+class RandomIdResponse(BaseModel):
+    id: str
+
+
+class NowResponse(BaseModel):
+    timestamp: int
+
+
+class LogRequest(BaseModel):
+    level: Literal["debug", "info", "warning", "error"] = "info"
+    message: str = Field(..., min_length=1, max_length=2048)
+
+
+class LogResponse(BaseModel):
+    ok: bool = True

lnbits/core/wasm_ext/api/permissions.py

@@ -0,0 +1,59 @@
+from collections.abc import Iterable
+from typing import Any
+
+from lnbits.core.models.extensions import ExtensionPermission, InstallableExtension
+from lnbits.core.wasm_ext.api.registry import extension_api_permission_ids
+
+
+def validate_extension_permissions(
+    ext_id: str,
+    permissions: Iterable[ExtensionPermission],
+    *,
+    strict: bool = True,
+) -> list[ExtensionPermission]:
+    known_permission_ids = extension_api_permission_ids()
+    normalized_permissions: list[ExtensionPermission] = []
+    unknown_ids: list[str] = []
+
+    for permission in permissions:
+        if permission.id not in known_permission_ids:
+            unknown_ids.append(permission.id)
+            if strict:
+                continue
+        normalized_permissions.append(permission.copy(update={"label": None}))
+
+    if unknown_ids and strict:
+        raise ValueError(
+            f"Extension '{ext_id}' requests unknown permissions: "
+            + ", ".join(sorted(set(unknown_ids)))
+        )
+
+    return normalized_permissions
+
+
+def validate_wasm_extension_permissions(
+    ext_info: InstallableExtension,
+    granted_permissions: list[ExtensionPermission] | None,
+    extension_config: dict[str, Any],
+) -> list[ExtensionPermission]:
+    if extension_config.get("extension_type") != "wasm":
+        return []
+
+    requested_permissions = validate_extension_permissions(
+        ext_info.id,
+        ExtensionPermission.list_from_config(extension_config),
+    )
+    if not requested_permissions:
+        return []
+
+    if granted_permissions is None:
+        raise ValueError(f"Extension '{ext_info.id}' requires permission approval.")
+
+    requested_ids = {permission.id for permission in requested_permissions}
+    granted_ids = {permission.id for permission in granted_permissions}
+    if requested_ids != granted_ids:
+        raise ValueError(
+            f"Extension '{ext_info.id}' was not granted all requested permissions."
+        )
+
+    return requested_permissions

lnbits/core/wasm_ext/api/registry.py

@@ -0,0 +1,199 @@
+from __future__ import annotations
+
+import inspect
+from collections.abc import Awaitable, Callable
+from functools import wraps
+from typing import Any, TypeVar, cast, get_type_hints
+
+from pydantic import BaseModel
+
+from .models import ExtensionAPIMethod, ExtensionAPIMethodExport
+
+_EXTENSION_API_METHOD_ATTR = "__lnbits_extension_api_method__"
+_EXTENSION_RUNTIME_PERMISSION_IDS = {"ui.camera.scan_qr"}
+_RequestModel = TypeVar("_RequestModel", bound=BaseModel)
+_ResponseModel = TypeVar("_ResponseModel", bound=BaseModel)
+
+
+def extension_api_method(
+    *,
+    method_id: str,
+    namespace: str,
+    name: str,
+    host_name: str,
+    sdk_name: str,
+    description: str,
+    host_interface: str = "host",
+    required_permission: str | None = None,
+    require_auth: bool = True,
+) -> Callable[
+    [Callable[[Any, _RequestModel], Awaitable[_ResponseModel]]],
+    Callable[[Any, _RequestModel], Awaitable[_ResponseModel]],
+]:
+    export = ExtensionAPIMethodExport(
+        method_id=method_id,
+        namespace=namespace,
+        name=name,
+        host_interface=host_interface,
+        host_name=host_name,
+        sdk_name=sdk_name,
+        description=description,
+        required_permission=required_permission,
+        require_auth=require_auth,
+    )
+
+    def decorator(
+        function: Callable[[Any, _RequestModel], Awaitable[_ResponseModel]],
+    ) -> Callable[[Any, _RequestModel], Awaitable[_ResponseModel]]:
+        @wraps(function)
+        async def wrapper(self: Any, request: _RequestModel) -> _ResponseModel:
+            api = getattr(self, "api", self)
+            if require_auth and not api.has_authenticated_context():
+                raise PermissionError(
+                    f"Extension API method '{method_id}' requires authentication."
+                )
+            api.require_permission(required_permission)
+            return await function(self, request)
+
+        setattr(wrapper, _EXTENSION_API_METHOD_ATTR, export)
+        return wrapper
+
+    return decorator
+
+
+def list_extension_api_methods(
+    api_cls: type[Any] | None = None,
+) -> list[ExtensionAPIMethod]:
+    api_cls = _default_api_cls(api_cls)
+    methods: list[ExtensionAPIMethod] = []
+
+    for prefix, method_cls in _extension_api_method_sources(api_cls):
+        for python_name, function in inspect.getmembers(method_cls, inspect.isfunction):
+            export = getattr(function, _EXTENSION_API_METHOD_ATTR, None)
+            if not export:
+                continue
+
+            request_model, response_model = _get_method_models(function)
+            methods.append(
+                ExtensionAPIMethod(
+                    method_id=export.method_id,
+                    namespace=export.namespace,
+                    name=export.name,
+                    python_name=f"{prefix}.{python_name}" if prefix else python_name,
+                    host_interface=export.host_interface,
+                    host_name=export.host_name,
+                    sdk_name=export.sdk_name,
+                    description=export.description,
+                    request_model=request_model,
+                    response_model=response_model,
+                    required_permission=export.required_permission,
+                    require_auth=export.require_auth,
+                )
+            )
+
+    return sorted(methods, key=lambda method: method.method_id)
+
+
+def extension_api_permission_ids(api_cls: type[Any] | None = None) -> set[str]:
+    permissions = {
+        method.required_permission
+        for method in list_extension_api_methods(api_cls)
+        if method.required_permission
+    }
+    permissions.update(_EXTENSION_RUNTIME_PERMISSION_IDS)
+    return permissions
+
+
+def get_extension_api_method(
+    method_id: str,
+    api_cls: type[Any] | None = None,
+) -> ExtensionAPIMethod:
+    for method in list_extension_api_methods(api_cls):
+        if method.method_id == method_id:
+            return method
+    raise KeyError(f"Unknown extension API method '{method_id}'.")
+
+
+def extension_api_contract(api_cls: type[Any] | None = None) -> dict[str, object]:
+    return {
+        "version": 1,
+        "methods": [
+            {
+                "id": method.method_id,
+                "namespace": method.namespace,
+                "name": method.name,
+                "python_name": method.python_name,
+                "host_interface": method.host_interface,
+                "host_name": method.host_name,
+                "sdk_name": method.sdk_name,
+                "sdk_qualified_name": method.sdk_qualified_name,
+                "description": method.description,
+                "required_permission": method.required_permission,
+                "require_auth": method.require_auth,
+                "request_schema": method.request_model.schema(
+                    ref_template="#/definitions/{model}"
+                ),
+                "response_schema": method.response_model.schema(
+                    ref_template="#/definitions/{model}"
+                ),
+            }
+            for method in list_extension_api_methods(api_cls)
+        ],
+    }
+
+
+def _default_api_cls(api_cls: type[Any] | None) -> type[Any]:
+    if api_cls is not None:
+        return api_cls
+
+    from .host import ExtensionHostAPI
+
+    return ExtensionHostAPI
+
+
+def _extension_api_method_sources(
+    api_cls: type[Any],
+) -> list[tuple[str, type[Any]]]:
+    sources: list[tuple[str, type[Any]]] = [("", api_cls)]
+
+    from .host import ExtensionHostAPI
+
+    if issubclass(api_cls, ExtensionHostAPI):
+        from .utils import extension_api_utils_method_classes
+
+        sources.extend(extension_api_utils_method_classes().items())
+    return sources
+
+
+def _get_method_models(
+    function: Callable[..., object],
+) -> tuple[type[BaseModel], type[BaseModel]]:
+    signature = inspect.signature(function)
+    request_parameters = [
+        parameter
+        for parameter in signature.parameters.values()
+        if parameter.name != "self"
+    ]
+    if len(request_parameters) != 1:
+        raise TypeError(
+            f"Extension API method '{function.__name__}' must accept one request model."
+        )
+
+    hints = get_type_hints(function)
+    request_model = hints.get(request_parameters[0].name)
+    response_model = hints.get("return")
+
+    if not _is_pydantic_model(request_model):
+        raise TypeError(
+            f"Extension API method '{function.__name__}' request must be a BaseModel."
+        )
+    if not _is_pydantic_model(response_model):
+        raise TypeError(
+            f"Extension API method '{function.__name__}' response must be a BaseModel."
+        )
+
+    return cast(type[BaseModel], request_model), cast(type[BaseModel], response_model)
+
+
+def _is_pydantic_model(value: object) -> bool:
+    return isinstance(value, type) and issubclass(value, BaseModel)

lnbits/core/wasm_ext/api/runtime.py

@@ -0,0 +1,138 @@
+from __future__ import annotations
+
+import inspect
+import re
+from collections.abc import Awaitable, Callable, Mapping
+from typing import Any
+
+from pydantic import BaseModel
+
+from .host import ExtensionHostAPI
+from .models import ExtensionAPIMethod
+from .registry import list_extension_api_methods
+
+HostImport = Callable[..., Awaitable[dict[str, Any]]]
+
+
+class ExtensionAPIHost:
+    def __init__(
+        self,
+        api: ExtensionHostAPI,
+        *,
+        api_cls: type[ExtensionHostAPI] = ExtensionHostAPI,
+    ) -> None:
+        self.api = api
+        self.methods = list_extension_api_methods(api_cls)
+        self._methods_by_host_name = self._index_methods(self.methods)
+
+    async def invoke(
+        self,
+        host_name: str,
+        payload: Mapping[str, Any] | BaseModel | None = None,
+    ) -> dict[str, Any]:
+        method = self._require_method(host_name)
+        request = self._request_model(method, payload)
+        handler = _resolve_attr_path(self.api, method.python_name)
+        response = handler(request)
+        if inspect.isawaitable(response):
+            response = await response
+        return self._response_payload(method, response)
+
+    def imports(self) -> dict[str, HostImport]:
+        return self.imports_for_interface("host")
+
+    def import_object(self) -> dict[str, dict[str, HostImport]]:
+        interfaces = sorted({method.host_interface for method in self.methods})
+        return {
+            f"lnbits:extension/{interface}": self.imports_for_interface(interface)
+            for interface in interfaces
+        }
+
+    def imports_for_interface(self, host_interface: str) -> dict[str, HostImport]:
+        return {
+            _snake_to_camel(method.host_name): self._make_import(method)
+            for method in self.methods
+            if method.host_interface == host_interface
+        }
+
+    def _make_import(self, method: ExtensionAPIMethod) -> HostImport:
+        async def host_import(
+            payload: Mapping[str, Any] | BaseModel | None = None,
+        ) -> dict[str, Any]:
+            return await self.invoke(method.method_id, payload)
+
+        return host_import
+
+    def _require_method(self, host_name: str) -> ExtensionAPIMethod:
+        method = self._methods_by_host_name.get(host_name)
+        if not method:
+            raise KeyError(f"Unknown extension host function '{host_name}'.")
+        return method
+
+    @staticmethod
+    def _index_methods(
+        methods: list[ExtensionAPIMethod],
+    ) -> dict[str, ExtensionAPIMethod]:
+        index: dict[str, ExtensionAPIMethod] = {}
+        for method in methods:
+            for host_name in {
+                method.method_id,
+                f"{method.host_interface}:{method.host_name}",
+                method.host_name,
+                _snake_to_camel(method.host_name),
+                method.host_name.replace("_", "-"),
+            }:
+                index[host_name] = method
+        return index
+
+    @staticmethod
+    def _request_model(
+        method: ExtensionAPIMethod,
+        payload: Mapping[str, Any] | BaseModel | None,
+    ) -> BaseModel:
+        if isinstance(payload, method.request_model):
+            return payload
+        if isinstance(payload, BaseModel):
+            payload = payload.dict()
+        if payload is None:
+            payload = {}
+        if not isinstance(payload, Mapping):
+            raise TypeError(
+                f"Host function '{method.host_name}' expects an object payload."
+            )
+        data = {_to_snake(key): value for key, value in payload.items()}
+        if isinstance(data.get("extra"), list):
+            data["extra"] = dict(data["extra"])
+        if isinstance(data.get("headers"), list):
+            data["headers"] = dict(data["headers"])
+        return method.request_model.parse_obj(data)
+
+    @staticmethod
+    def _response_payload(
+        method: ExtensionAPIMethod,
+        response: Any,
+    ) -> dict[str, Any]:
+        if not isinstance(response, method.response_model):
+            response = method.response_model.parse_obj(response)
+        payload = response.dict()
+        if method.method_id in {"http.request", "extension.api.request"} and isinstance(
+            payload.get("headers"), Mapping
+        ):
+            payload["headers"] = list(payload["headers"].items())
+        return {_snake_to_camel(key): value for key, value in payload.items()}
+
+
+def _snake_to_camel(value: str) -> str:
+    head, *tail = value.split("_")
+    return head + "".join(part.capitalize() for part in tail)
+
+
+def _to_snake(value: str) -> str:
+    value = value.replace("-", "_")
+    return re.sub(r"([a-z0-9])([A-Z])", r"\1_\2", value).lower()
+
+
+def _resolve_attr_path(value: Any, path: str) -> Any:
+    for part in path.split("."):
+        value = getattr(value, part)
+    return value

lnbits/core/wasm_ext/api/utils.py

@@ -0,0 +1,387 @@
+from __future__ import annotations
+
+import time
+from collections.abc import Iterable
+from datetime import datetime
+from typing import Any
+
+from lnbits import bolt11
+from lnbits.settings import settings
+from lnbits.utils.crypto import random_secret_and_hash, verify_preimage
+from lnbits.utils.exchange_rates import (
+    allowed_currencies,
+    fiat_amount_as_satoshis,
+    get_fiat_rate_and_price_satoshis,
+    satoshis_amount_as_fiat,
+)
+
+from .models import (
+    Bolt11Request,
+    CurrencyConvertRequest,
+    CurrencyConvertResponse,
+    CurrencyListResponse,
+    CurrencyRateRequest,
+    CurrencyRateResponse,
+    DecodeInvoiceResponse,
+    EmptyRequest,
+    FiatToSatsRequest,
+    FiatToSatsResponse,
+    InvoiceAmountMsatResponse,
+    InvoiceExpiryResponse,
+    InvoiceMemoResponse,
+    InvoicePaymentHashResponse,
+    RandomSecretAndHashRequest,
+    RandomSecretAndHashResponse,
+    SatsToFiatRequest,
+    SatsToFiatResponse,
+    ServerHealthResponse,
+    ValidateInvoiceResponse,
+    VerifyPreimageRequest,
+    VerifyPreimageResponse,
+)
+from .registry import extension_api_method
+
+
+class ExtensionAPIUtils:
+    def __init__(self, extension_id: str, permissions: Iterable[str]) -> None:
+        permission_set = set(permissions)
+        self.currencies = ExtensionCurrencyUtils(extension_id, permission_set)
+        self.server = ExtensionServerUtils(extension_id, permission_set)
+        self.lightning = ExtensionLightningUtils(extension_id, permission_set)
+
+
+class _ExtensionAPIUtilsGroup:
+    def __init__(self, extension_id: str, permissions: Iterable[str]) -> None:
+        self.extension_id = extension_id
+        self.permissions = set(permissions)
+
+    def require_permission(self, permission: str | None) -> None:
+        if permission and permission not in self.permissions:
+            raise PermissionError(
+                f"Extension '{self.extension_id}' is missing permission '{permission}'."
+            )
+
+    def has_authenticated_context(self) -> bool:
+        return False
+
+
+class ExtensionCurrencyUtils(_ExtensionAPIUtilsGroup):
+    @extension_api_method(
+        method_id="utils.currencies.list",
+        namespace="utils.currencies",
+        name="List currencies",
+        host_interface="utils-currencies",
+        host_name="list_currencies",
+        sdk_name="list",
+        description="List currencies supported by LNbits exchange-rate conversion.",
+        required_permission="utils.basic",
+        require_auth=False,
+    )
+    async def list(self, request: EmptyRequest) -> CurrencyListResponse:
+
+        return CurrencyListResponse(currencies=allowed_currencies())
+
+    @extension_api_method(
+        method_id="utils.currencies.rate",
+        namespace="utils.currencies",
+        name="Get currency rate",
+        host_interface="utils-currencies",
+        host_name="rate",
+        sdk_name="rate",
+        description="Get sats-per-fiat and BTC price for a currency.",
+        required_permission="utils.basic",
+        require_auth=False,
+    )
+    async def rate(self, request: CurrencyRateRequest) -> CurrencyRateResponse:
+
+        rate, price = await get_fiat_rate_and_price_satoshis(request.currency)
+        return CurrencyRateResponse(rate=rate, price=price)
+
+    @extension_api_method(
+        method_id="utils.currencies.convert",
+        namespace="utils.currencies",
+        name="Convert currency amount",
+        host_interface="utils-currencies",
+        host_name="convert",
+        sdk_name="convert",
+        description="Convert between sats, BTC, and supported fiat currencies.",
+        required_permission="utils.basic",
+        require_auth=False,
+    )
+    async def convert(self, request: CurrencyConvertRequest) -> CurrencyConvertResponse:
+
+        from_currency = request.from_currency
+        if from_currency == "sats":
+            from_currency = "sat"
+
+        amounts: list[tuple[str, float]] = []
+        if from_currency == "sat":
+            sats = int(request.amount)
+            amounts.append(("BTC", sats / 100_000_000))
+            amounts.append(("sats", sats))
+            for currency in request.to.split(","):
+                currency = currency.strip()
+                if currency:
+                    amounts.append(
+                        (
+                            currency.upper(),
+                            await satoshis_amount_as_fiat(sats, currency),
+                        )
+                    )
+        else:
+            sats = await fiat_amount_as_satoshis(request.amount, from_currency)
+            amounts.append((from_currency.upper(), request.amount))
+            amounts.append(("sats", sats))
+            amounts.append(("BTC", sats / 100_000_000))
+        return CurrencyConvertResponse(amounts=amounts)
+
+    @extension_api_method(
+        method_id="utils.currencies.fiat_to_sats",
+        namespace="utils.currencies",
+        name="Convert fiat to sats",
+        host_interface="utils-currencies",
+        host_name="fiat_to_sats",
+        sdk_name="fiatToSats",
+        description="Convert a fiat amount to sats.",
+        required_permission="utils.basic",
+        require_auth=False,
+    )
+    async def fiat_to_sats(self, request: FiatToSatsRequest) -> FiatToSatsResponse:
+
+        return FiatToSatsResponse(
+            amount_sat=await fiat_amount_as_satoshis(
+                request.amount,
+                request.currency,
+            )
+        )
+
+    @extension_api_method(
+        method_id="utils.currencies.sats_to_fiat",
+        namespace="utils.currencies",
+        name="Convert sats to fiat",
+        host_interface="utils-currencies",
+        host_name="sats_to_fiat",
+        sdk_name="satsToFiat",
+        description="Convert a sats amount to fiat.",
+        required_permission="utils.basic",
+        require_auth=False,
+    )
+    async def sats_to_fiat(self, request: SatsToFiatRequest) -> SatsToFiatResponse:
+
+        return SatsToFiatResponse(
+            amount=await satoshis_amount_as_fiat(request.amount, request.currency)
+        )
+
+
+class ExtensionServerUtils(_ExtensionAPIUtilsGroup):
+    @extension_api_method(
+        method_id="utils.server.health",
+        namespace="utils.server",
+        name="Server health",
+        host_interface="utils-server",
+        host_name="health",
+        sdk_name="health",
+        description="Return basic public LNbits server health data.",
+        required_permission="utils.basic",
+        require_auth=False,
+    )
+    async def health(self, request: EmptyRequest) -> ServerHealthResponse:
+
+        return ServerHealthResponse(
+            server_time=int(time.time()),
+            up_time=settings.lnbits_server_up_time,
+        )
+
+
+class ExtensionLightningUtils(_ExtensionAPIUtilsGroup):
+    @extension_api_method(
+        method_id="utils.lightning.decode_invoice",
+        namespace="utils.lightning",
+        name="Decode Lightning invoice",
+        host_interface="utils-lightning",
+        host_name="decode_invoice",
+        sdk_name="decodeInvoice",
+        description="Decode a BOLT11 Lightning invoice.",
+        required_permission="utils.basic",
+        require_auth=False,
+    )
+    async def decode_invoice(self, request: Bolt11Request) -> DecodeInvoiceResponse:
+        invoice = _decode_bolt11(request.bolt11)
+        return _decoded_invoice_response(invoice)
+
+    @extension_api_method(
+        method_id="utils.lightning.validate_invoice",
+        namespace="utils.lightning",
+        name="Validate Lightning invoice",
+        host_interface="utils-lightning",
+        host_name="validate_invoice",
+        sdk_name="validateInvoice",
+        description="Validate whether a string is a BOLT11 Lightning invoice.",
+        required_permission="utils.basic",
+        require_auth=False,
+    )
+    async def validate_invoice(self, request: Bolt11Request) -> ValidateInvoiceResponse:
+        try:
+            _decode_bolt11(request.bolt11)
+            return ValidateInvoiceResponse(valid=True)
+        except Exception as exc:
+            return ValidateInvoiceResponse(valid=False, error=str(exc))
+
+    @extension_api_method(
+        method_id="utils.lightning.invoice_payment_hash",
+        namespace="utils.lightning",
+        name="Get Lightning invoice payment hash",
+        host_interface="utils-lightning",
+        host_name="invoice_payment_hash",
+        sdk_name="invoicePaymentHash",
+        description="Get the payment hash from a BOLT11 Lightning invoice.",
+        required_permission="utils.basic",
+        require_auth=False,
+    )
+    async def invoice_payment_hash(
+        self, request: Bolt11Request
+    ) -> InvoicePaymentHashResponse:
+        return InvoicePaymentHashResponse(
+            payment_hash=str(_decode_bolt11(request.bolt11).payment_hash)
+        )
+
+    @extension_api_method(
+        method_id="utils.lightning.invoice_amount_msat",
+        namespace="utils.lightning",
+        name="Get Lightning invoice amount",
+        host_interface="utils-lightning",
+        host_name="invoice_amount_msat",
+        sdk_name="invoiceAmountMsat",
+        description="Get the amount in msat from a BOLT11 Lightning invoice.",
+        required_permission="utils.basic",
+        require_auth=False,
+    )
+    async def invoice_amount_msat(
+        self, request: Bolt11Request
+    ) -> InvoiceAmountMsatResponse:
+        return InvoiceAmountMsatResponse(
+            amount_msat=_invoice_amount_msat(_decode_bolt11(request.bolt11))
+        )
+
+    @extension_api_method(
+        method_id="utils.lightning.invoice_expiry",
+        namespace="utils.lightning",
+        name="Get Lightning invoice expiry",
+        host_interface="utils-lightning",
+        host_name="invoice_expiry",
+        sdk_name="invoiceExpiry",
+        description="Get the expiry timestamp from a BOLT11 Lightning invoice.",
+        required_permission="utils.basic",
+        require_auth=False,
+    )
+    async def invoice_expiry(self, request: Bolt11Request) -> InvoiceExpiryResponse:
+        return InvoiceExpiryResponse(
+            expires_at=_invoice_expires_at(_decode_bolt11(request.bolt11))
+        )
+
+    @extension_api_method(
+        method_id="utils.lightning.invoice_memo",
+        namespace="utils.lightning",
+        name="Get Lightning invoice memo",
+        host_interface="utils-lightning",
+        host_name="invoice_memo",
+        sdk_name="invoiceMemo",
+        description="Get the memo from a BOLT11 Lightning invoice.",
+        required_permission="utils.basic",
+        require_auth=False,
+    )
+    async def invoice_memo(self, request: Bolt11Request) -> InvoiceMemoResponse:
+        return InvoiceMemoResponse(memo=_invoice_memo(_decode_bolt11(request.bolt11)))
+
+    @extension_api_method(
+        method_id="utils.lightning.verify_preimage",
+        namespace="utils.lightning",
+        name="Verify Lightning preimage",
+        host_interface="utils-lightning",
+        host_name="verify_preimage",
+        sdk_name="verifyPreimage",
+        description="Verify that a preimage matches a payment hash.",
+        required_permission="utils.basic",
+        require_auth=False,
+    )
+    async def verify_preimage(
+        self, request: VerifyPreimageRequest
+    ) -> VerifyPreimageResponse:
+
+        return VerifyPreimageResponse(
+            valid=verify_preimage(request.preimage, request.payment_hash)
+        )
+
+    @extension_api_method(
+        method_id="utils.lightning.random_secret_and_hash",
+        namespace="utils.lightning",
+        name="Random Lightning secret and hash",
+        host_interface="utils-lightning",
+        host_name="random_secret_and_hash",
+        sdk_name="randomSecretAndHash",
+        description="Create a random secret and matching SHA256 hash.",
+        required_permission="utils.basic",
+        require_auth=False,
+    )
+    async def random_secret_and_hash(
+        self, request: RandomSecretAndHashRequest
+    ) -> RandomSecretAndHashResponse:
+
+        secret, payment_hash = random_secret_and_hash(request.length)
+        return RandomSecretAndHashResponse(secret=secret, hash=payment_hash)
+
+
+def extension_api_utils_method_classes() -> dict[str, type[_ExtensionAPIUtilsGroup]]:
+    return {
+        "utils.currencies": ExtensionCurrencyUtils,
+        "utils.server": ExtensionServerUtils,
+        "utils.lightning": ExtensionLightningUtils,
+    }
+
+
+def _decode_bolt11(payment_request: str) -> Any:
+
+    return bolt11.decode(payment_request)
+
+
+def _decoded_invoice_response(invoice: Any) -> DecodeInvoiceResponse:
+    return DecodeInvoiceResponse(
+        payment_hash=str(getattr(invoice, "payment_hash", "")) or None,
+        amount_msat=_invoice_amount_msat(invoice),
+        expiry=_invoice_expiry(invoice),
+        expires_at=_invoice_expires_at(invoice),
+        memo=_invoice_memo(invoice),
+    )
+
+
+def _invoice_amount_msat(invoice: Any) -> int | None:
+    amount_msat = getattr(invoice, "amount_msat", None)
+    if amount_msat is None:
+        return None
+    return int(amount_msat)
+
+
+def _invoice_expiry(invoice: Any) -> int | None:
+    expiry = getattr(invoice, "expiry", None)
+    if expiry is None:
+        return None
+    return int(expiry)
+
+
+def _invoice_expires_at(invoice: Any) -> int | None:
+    expiry_date = getattr(invoice, "expiry_date", None)
+    if isinstance(expiry_date, datetime):
+        return int(expiry_date.timestamp())
+
+    date = getattr(invoice, "date", None)
+    expiry = getattr(invoice, "expiry", None)
+    if isinstance(date, datetime) and expiry is not None:
+        return int(date.timestamp() + int(expiry))
+    if isinstance(date, (int, float)) and expiry is not None:
+        return int(date + int(expiry))
+    return None
+
+
+def _invoice_memo(invoice: Any) -> str | None:
+    memo = getattr(invoice, "description", None)
+    return str(memo) if memo is not None else None

lnbits/core/wasm_ext/client/__init__.py

@@ -0,0 +1,4 @@
+from .extensions import send_extension_api_request
+from .http import send_extension_http_request
+
+__all__ = ["send_extension_api_request", "send_extension_http_request"]

lnbits/core/wasm_ext/client/extensions.py

@@ -0,0 +1,196 @@
+from __future__ import annotations
+
+import posixpath
+import re
+from typing import Any
+from urllib.parse import unquote, urlsplit, urlunsplit
+
+import httpx
+
+from lnbits.core.crud.extensions import (
+    get_installed_extension,
+    get_user_active_extensions_ids,
+)
+from lnbits.settings import settings
+
+from ..api.models import ExtensionApiRequest, HttpResponse
+
+EXTENSION_API_TIMEOUT_SECONDS = 10.0
+EXTENSION_API_MAX_RESPONSE_BYTES = 262_144
+
+_READ_METHODS = {"GET", "HEAD"}
+_WRITE_METHODS = {"DELETE", "PATCH", "POST", "PUT"}
+_EXTENSION_ID_RE = re.compile(r"^[A-Za-z0-9_-]+$")
+_FORBIDDEN_RESPONSE_HEADERS = {
+    "connection",
+    "content-length",
+    "set-cookie",
+    "transfer-encoding",
+}
+
+
+async def send_extension_api_request(
+    caller_extension_id: str,
+    policies: list[Any],
+    user_id: str | None,
+    access_token: str | None,
+    request: ExtensionApiRequest,
+) -> HttpResponse:
+    if not user_id:
+        raise PermissionError("Extension API requests require authentication.")
+    if not access_token:
+        raise PermissionError("Extension API requests require an account access token.")
+
+    target_extension_id = _target_extension_id(request.extension_id)
+    access = _target_extension_access(policies, target_extension_id)
+    _require_method_access(caller_extension_id, target_extension_id, access, request)
+    await _require_enabled_extension(target_extension_id, user_id)
+
+    path = _extension_api_path(request.path)
+    body = request.body.encode() if request.body is not None else b""
+    if len(body) > 65_536:
+        raise ValueError("Extension API request body is too large.")
+
+    url = f"http://{settings.host}:{settings.port}/{target_extension_id}{path}"
+    try:
+        async with httpx.AsyncClient(
+            follow_redirects=False,
+            timeout=EXTENSION_API_TIMEOUT_SECONDS,
+            trust_env=False,
+        ) as client:
+            async with client.stream(
+                request.method,
+                url,
+                headers={"Authorization": f"Bearer {access_token}"},
+                content=body,
+            ) as response:
+                response_body = await _read_limited_response(response)
+                return HttpResponse(
+                    status_code=response.status_code,
+                    headers=_response_headers(dict(response.headers)),
+                    body=response_body.decode(response.encoding or "utf-8", "replace"),
+                )
+    except httpx.RequestError as exc:
+        raise ValueError("Extension API request failed.") from exc
+
+
+def _target_extension_id(extension_id: str) -> str:
+    target = extension_id.strip()
+    if not target or not _EXTENSION_ID_RE.match(target):
+        raise PermissionError("Extension API request has an invalid target extension.")
+    return target
+
+
+def _target_extension_access(policies: list[Any], target_extension_id: str) -> set[str]:
+    if not isinstance(policies, list) or not policies:
+        raise PermissionError(
+            "Extension API requests require a non-empty extensions policy."
+        )
+
+    for extension in policies:
+        if isinstance(extension, str):
+            extension_id = extension
+            access = ["read"]
+        elif isinstance(extension, dict):
+            raw_extension_id = extension.get("id")
+            raw_access = extension.get("access")
+            if not isinstance(raw_extension_id, str):
+                continue
+            if not isinstance(raw_access, list):
+                raise PermissionError(
+                    f"Extension API target '{target_extension_id}' "
+                    "has no access policy."
+                )
+            extension_id = raw_extension_id
+            access = raw_access
+        else:
+            continue
+
+        if extension_id != target_extension_id:
+            continue
+        clean_access = {
+            item
+            for item in access
+            if isinstance(item, str) and item in {"read", "write"}
+        }
+        if clean_access:
+            return clean_access
+        break
+
+    raise PermissionError(
+        f"Extension API target '{target_extension_id}' is not allowed."
+    )
+
+
+def _require_method_access(
+    caller_extension_id: str,
+    target_extension_id: str,
+    access: set[str],
+    request: ExtensionApiRequest,
+) -> None:
+    if request.method in _READ_METHODS:
+        required_access = "read"
+    elif request.method in _WRITE_METHODS:
+        required_access = "write"
+    else:
+        raise PermissionError("Extension API request method is not allowed.")
+
+    if required_access not in access:
+        raise PermissionError(
+            f"Extension '{caller_extension_id}' cannot {required_access} "
+            f"extension '{target_extension_id}'."
+        )
+
+
+async def _require_enabled_extension(target_extension_id: str, user_id: str) -> None:
+    extension = await get_installed_extension(target_extension_id)
+    if not extension or not extension.active:
+        raise PermissionError(
+            f"Target extension '{target_extension_id}' is not installed or enabled."
+        )
+
+    active_extensions = await get_user_active_extensions_ids(user_id)
+    if target_extension_id not in active_extensions:
+        raise PermissionError(
+            f"Target extension '{target_extension_id}' is not active for this user."
+        )
+
+
+def _extension_api_path(path: str) -> str:
+    parts = urlsplit(path)
+    if parts.scheme or parts.netloc:
+        raise PermissionError("Extension API request path must be relative.")
+    if parts.fragment:
+        raise PermissionError("Extension API request path cannot include a fragment.")
+    if not parts.path.startswith("/api/"):
+        raise PermissionError("Extension API request path must start with '/api/'.")
+
+    decoded_path = unquote(parts.path)
+    path_parts = decoded_path.split("/")
+    if any(part == ".." for part in path_parts):
+        raise PermissionError("Extension API request path cannot traverse directories.")
+
+    normalized = posixpath.normpath(decoded_path)
+    if normalized != decoded_path.rstrip("/") or not normalized.startswith("/api/"):
+        raise PermissionError("Extension API request path is invalid.")
+
+    return urlunsplit(("", "", parts.path, parts.query, ""))
+
+
+async def _read_limited_response(response: httpx.Response) -> bytes:
+    chunks: list[bytes] = []
+    size = 0
+    async for chunk in response.aiter_bytes():
+        size += len(chunk)
+        if size > EXTENSION_API_MAX_RESPONSE_BYTES:
+            raise ValueError("Extension API response is too large.")
+        chunks.append(chunk)
+    return b"".join(chunks)
+
+
+def _response_headers(headers: dict[str, str]) -> dict[str, str]:
+    return {
+        key: value
+        for key, value in headers.items()
+        if key.lower() not in _FORBIDDEN_RESPONSE_HEADERS
+    }

lnbits/core/wasm_ext/client/http.py

@@ -0,0 +1,183 @@
+from __future__ import annotations
+
+import ipaddress
+import socket
+from typing import Any
+from urllib.parse import urlparse
+
+import httpx
+
+from ..api.models import HttpRequest, HttpResponse
+
+HTTP_REQUEST_TIMEOUT_SECONDS = 10.0
+HTTP_MAX_RESPONSE_BYTES = 262_144
+
+_FORBIDDEN_REQUEST_HEADERS = {
+    "connection",
+    "content-length",
+    "cookie",
+    "host",
+    "proxy-authorization",
+    "transfer-encoding",
+}
+_FORBIDDEN_RESPONSE_HEADERS = {
+    "connection",
+    "content-length",
+    "set-cookie",
+    "transfer-encoding",
+}
+
+
+async def send_extension_http_request(
+    extension_id: str,
+    policies: list[Any],
+    request: HttpRequest,
+) -> HttpResponse:
+    allowed_origins = _allowed_origins(policies)
+    origin = _request_origin(request.url)
+    if origin not in allowed_origins:
+        raise PermissionError(
+            f"Extension '{extension_id}' is not allowed to request '{origin}'."
+        )
+
+    await _reject_internal_host(request.url)
+    headers = _request_headers(request.headers)
+    body = request.body.encode() if request.body is not None else b""
+    if len(body) > 65_536:
+        raise ValueError("HTTP request body is too large.")
+
+    try:
+        async with httpx.AsyncClient(
+            follow_redirects=False,
+            timeout=HTTP_REQUEST_TIMEOUT_SECONDS,
+            trust_env=False,
+        ) as client:
+            async with client.stream(
+                request.method,
+                request.url,
+                headers=headers,
+                content=body,
+            ) as response:
+                response_body = await _read_limited_response(response)
+                return HttpResponse(
+                    status_code=response.status_code,
+                    headers=_response_headers(dict(response.headers)),
+                    body=response_body.decode(response.encoding or "utf-8", "replace"),
+                )
+    except httpx.RequestError as exc:
+        raise ValueError("HTTP request failed.") from exc
+
+
+def _allowed_origins(policies: list[Any]) -> set[str]:
+    if not isinstance(policies, list) or not policies:
+        raise PermissionError("HTTP requests require a non-empty hosts policy.")
+
+    origins: set[str] = set()
+    for policy in policies:
+        host = policy.get("host") if isinstance(policy, dict) else policy
+        if not isinstance(host, str) or not host:
+            continue
+        origins.add(_request_origin(host))
+    if not origins:
+        raise PermissionError("HTTP requests require at least one valid host.")
+    return origins
+
+
+def _request_origin(url: str) -> str:
+    parsed = urlparse(url)
+    if parsed.scheme != "https":
+        raise PermissionError("HTTP requests require https URLs.")
+    if parsed.username or parsed.password:
+        raise PermissionError("HTTP requests cannot include credentials in URLs.")
+    if not parsed.hostname:
+        raise PermissionError("HTTP requests require a hostname.")
+
+    hostname = parsed.hostname.lower()
+    port = _url_port(parsed)
+    if port is None or port == 443:
+        return f"https://{hostname}"
+    return f"https://{hostname}:{port}"
+
+
+def _url_port(parsed: Any) -> int | None:
+    try:
+        return parsed.port
+    except ValueError as exc:
+        raise PermissionError("HTTP request URL has an invalid port.") from exc
+
+
+async def _reject_internal_host(url: str) -> None:
+    parsed = urlparse(url)
+    hostname = parsed.hostname
+    if not hostname:
+        raise PermissionError("HTTP requests require a hostname.")
+    if hostname == "localhost" or hostname.endswith(".localhost"):
+        raise PermissionError("HTTP requests cannot target localhost.")
+
+    try:
+        address = ipaddress.ip_address(hostname)
+        _reject_internal_address(address)
+        return
+    except ValueError:
+        pass
+
+    for address in await _resolve_host(hostname):
+        _reject_internal_address(address)
+
+
+async def _resolve_host(
+    hostname: str,
+) -> list[ipaddress.IPv4Address | ipaddress.IPv6Address]:
+    import asyncio
+
+    def resolve() -> list[ipaddress.IPv4Address | ipaddress.IPv6Address]:
+        try:
+            infos = socket.getaddrinfo(hostname, None, type=socket.SOCK_STREAM)
+        except socket.gaierror as exc:
+            raise PermissionError("HTTP request host could not be resolved.") from exc
+
+        addresses: list[ipaddress.IPv4Address | ipaddress.IPv6Address] = []
+        for info in infos:
+            sockaddr = info[4]
+            addresses.append(ipaddress.ip_address(sockaddr[0]))
+        return addresses
+
+    return await asyncio.to_thread(resolve)
+
+
+def _reject_internal_address(
+    address: ipaddress.IPv4Address | ipaddress.IPv6Address,
+) -> None:
+    if not address.is_global:
+        raise PermissionError("HTTP requests cannot target internal network addresses.")
+
+
+def _request_headers(headers: dict[str, str]) -> dict[str, str]:
+    clean: dict[str, str] = {}
+    for key, value in headers.items():
+        header = key.strip()
+        if not header:
+            continue
+        if header.lower() in _FORBIDDEN_REQUEST_HEADERS:
+            continue
+        clean[header] = value
+    return clean
+
+
+async def _read_limited_response(response: httpx.Response) -> bytes:
+    chunks: list[bytes] = []
+    size = 0
+    async for chunk in response.aiter_bytes():
+        size += len(chunk)
+        if size > HTTP_MAX_RESPONSE_BYTES:
+            raise ValueError("HTTP response is too large.")
+        chunks.append(chunk)
+    return b"".join(chunks)
+
+
+def _response_headers(headers: dict[str, str]) -> dict[str, str]:
+    return {
+        key: value
+        for key, value in headers.items()
+        if key.lower() not in _FORBIDDEN_RESPONSE_HEADERS
+    }

lnbits/core/wasm_ext/routes/__init__.py

@@ -0,0 +1,3 @@
+from .register import register_wasm_extension
+
+__all__ = ["register_wasm_extension"]

lnbits/core/wasm_ext/routes/api.py

@@ -0,0 +1,168 @@
+from __future__ import annotations
+
+import json
+import re
+from typing import Annotated, Any
+
+from fastapi import Depends, FastAPI, HTTPException, Request
+
+from lnbits.core.models import Account
+from lnbits.decorators import check_access_token, check_account_exists
+
+from ..wasm.invoke import invoke_wasm_extension_export
+from ..wasm.loader import WasmExtension
+
+
+def register_wasm_extension_api_routes(app: FastAPI, extension: WasmExtension) -> None:
+    for route_config in extension.config.get("api_routes") or []:
+        _add_wasm_extension_api_route(app, extension, route_config)
+
+
+def _add_wasm_extension_api_route(
+    app: FastAPI,
+    extension: WasmExtension,
+    route_config: dict[str, Any],
+) -> None:
+    method = _wasm_extension_api_method(extension, route_config.get("method"))
+    route_path = _wasm_extension_api_path(extension, route_config.get("path"))
+    export_name = _wasm_extension_api_export(extension, route_config.get("export"))
+    path_params = route_config.get("path_params") or {}
+    auth = _wasm_extension_route_auth(extension, route_config.get("auth"))
+
+    if _has_route(app, route_path, method):
+        return
+
+    async def invoke_wasm_api_request(
+        request: Request,
+        account: Account | None = None,
+        access_token: str | None = None,
+    ) -> dict[str, Any]:
+        try:
+            payload = await _read_api_payload(request, path_params)
+            return await invoke_wasm_extension_export(
+                extension.id,
+                export_name,
+                payload,
+                user=account,
+                access_token=access_token,
+            )
+        except KeyError as exc:
+            raise HTTPException(status_code=404, detail=str(exc)) from exc
+        except PermissionError as exc:
+            raise HTTPException(status_code=403, detail=str(exc)) from exc
+        except (TypeError, ValueError) as exc:
+            raise HTTPException(status_code=400, detail=str(exc)) from exc
+
+    async def invoke_private_wasm_extension_export(
+        request: Request,
+        access_token: Annotated[str | None, Depends(check_access_token)],
+        account: Account = Depends(check_account_exists),
+    ) -> dict[str, Any]:
+        return await invoke_wasm_api_request(request, account, access_token)
+
+    async def invoke_public_wasm_extension_export(request: Request) -> dict[str, Any]:
+        return await invoke_wasm_api_request(request)
+
+    app.add_api_route(
+        route_path,
+        (
+            invoke_public_wasm_extension_export
+            if auth == "public"
+            else invoke_private_wasm_extension_export
+        ),
+        methods=[method],
+        name=f"{extension.id}:{method}:{route_path}",
+        include_in_schema=False,
+    )
+
+
+async def _read_api_payload(
+    request: Request,
+    path_params: dict[str, str],
+) -> dict[str, Any]:
+    payload = _read_api_path_params(request, path_params)
+    payload.update(_read_api_query_params(request))
+    if request.method in {"POST", "PUT", "PATCH"}:
+        payload.update(await _read_json_object(request))
+    return payload
+
+
+async def _read_json_object(request: Request) -> dict[str, Any]:
+    body = await request.body()
+    if not body:
+        return {}
+    value = json.loads(body)
+    if not isinstance(value, dict):
+        raise TypeError("WASM extension API payload must be a JSON object.")
+    return value
+
+
+def _read_api_path_params(
+    request: Request,
+    path_params: dict[str, str],
+) -> dict[str, Any]:
+    payload: dict[str, Any] = {}
+    for key, value in request.path_params.items():
+        target = path_params.get(key) or _snake_to_camel(key)
+        payload[target] = value
+    return payload
+
+
+def _read_api_query_params(request: Request) -> dict[str, Any]:
+    return {_snake_to_camel(key): value for key, value in request.query_params.items()}
+
+
+def _wasm_extension_api_export(extension: WasmExtension, export_name: Any) -> str:
+    if not isinstance(export_name, str) or not export_name:
+        raise ValueError(f"Invalid API export for WASM extension '{extension.id}'.")
+
+    for export in extension.exports:
+        if export.get("name") != export_name:
+            continue
+        if export.get("visibility") in {"public", "authenticated"}:
+            return export_name
+        raise PermissionError(f"WASM export '{export_name}' is not callable over HTTP.")
+    raise KeyError(f"WASM extension '{extension.id}' has no export '{export_name}'.")
+
+
+def _wasm_extension_api_method(extension: WasmExtension, method: Any) -> str:
+    if not isinstance(method, str):
+        raise ValueError(f"Invalid API method for WASM extension '{extension.id}'.")
+    method = method.upper()
+    if method not in {"GET", "POST", "PUT", "PATCH", "DELETE"}:
+        raise ValueError(f"Unsupported API method for WASM extension '{extension.id}'.")
+    return method
+
+
+def _wasm_extension_api_path(extension: WasmExtension, path: Any) -> str:
+    if not isinstance(path, str) or not path.startswith("/"):
+        raise ValueError(f"Invalid API path for WASM extension '{extension.id}'.")
+    if path == "/":
+        return f"/api/v1/ext/{extension.id}"
+    return f"/api/v1/ext/{extension.id}{path}"
+
+
+def _wasm_extension_route_auth(extension: WasmExtension, auth: Any) -> str:
+    if auth in {"public", "user"}:
+        return auth
+    raise ValueError(f"Invalid route auth for WASM extension '{extension.id}'.")
+
+
+def _has_route(app: FastAPI, route_path: str, method: str) -> bool:
+    for route in app.routes:
+        if getattr(route, "path", None) != route_path:
+            continue
+        methods = getattr(route, "methods", set()) or set()
+        if method in methods:
+            return True
+    return False
+
+
+def _snake_to_camel(value: str) -> str:
+    head, *tail = value.split("_")
+    return head + "".join(part.capitalize() for part in tail)
+
+
+def _path_template_pattern(path: str) -> str:
+    pattern = re.sub(r"\\{[^/{}]+\\}", r"[^/]+", re.escape(path))
+    return f"^{pattern}$"

lnbits/core/wasm_ext/routes/assets.py

@@ -0,0 +1,139 @@
+from __future__ import annotations
+
+import os
+from pathlib import Path
+
+from fastapi import FastAPI, HTTPException
+from fastapi.responses import FileResponse, Response
+from fastapi.staticfiles import StaticFiles
+from starlette.staticfiles import PathLike as StaticFilesPathLike
+from starlette.types import Scope
+
+from lnbits.settings import settings
+
+from ..wasm.loader import WasmExtension
+
+WASM_EXTENSION_CORE_ASSET_PREFIX = "_lnbits"
+WASM_EXTENSION_CORE_STATIC_ASSETS = {
+    "bundle.min.css": ("static/bundle.min.css", "text/css; charset=utf-8"),
+    "material-icons-v50.woff2": (
+        "static/fonts/material-icons-v50.woff2",
+        "font/woff2",
+    ),
+    "quasar.css": ("static/vendor/quasar.css", "text/css; charset=utf-8"),
+    "quasar.umd.prod.js": (
+        "static/vendor/quasar.umd.prod.js",
+        "text/javascript; charset=utf-8",
+    ),
+    "qrcode.vue.browser.js": (
+        "static/vendor/qrcode.vue.browser.js",
+        "text/javascript; charset=utf-8",
+    ),
+    "vue.global.prod.js": (
+        "static/vendor/vue.global.prod.js",
+        "text/javascript; charset=utf-8",
+    ),
+}
+WASM_EXTENSION_GENERATED_CORE_ASSETS = {
+    "material-icons.css": (
+        """
+        @font-face {
+          font-family: 'Material Icons';
+          font-style: normal;
+          font-weight: 400;
+          src: url('./material-icons-v50.woff2') format('woff2');
+        }
+        """,
+        "text/css; charset=utf-8",
+    )
+}
+WASM_EXTENSION_STATIC_MIME_TYPES = {
+    ".css": "text/css; charset=utf-8",
+    ".gif": "image/gif",
+    ".ico": "image/x-icon",
+    ".jpeg": "image/jpeg",
+    ".jpg": "image/jpeg",
+    ".js": "text/javascript; charset=utf-8",
+    ".png": "image/png",
+    ".webp": "image/webp",
+    ".woff": "font/woff",
+    ".woff2": "font/woff2",
+}
+WASM_EXTENSION_TEXT_STATIC_EXTENSIONS = {".css", ".js"}
+WASM_EXTENSION_HTML_PREFIXES = (b"<!doctype", b"<html", b"<script")
+
+
+class GuardedWasmExtensionStaticFiles(StaticFiles):
+    async def get_response(self, path: str, scope: Scope) -> Response:
+        if path.startswith(f"{WASM_EXTENSION_CORE_ASSET_PREFIX}/"):
+            return _wasm_extension_core_asset_response(path)
+        if Path(path).suffix.lower() not in WASM_EXTENSION_STATIC_MIME_TYPES:
+            raise HTTPException(status_code=404)
+        return await super().get_response(path, scope)
+
+    def file_response(
+        self,
+        full_path: StaticFilesPathLike,
+        stat_result: os.stat_result,
+        scope: Scope,
+        status_code: int = 200,
+    ) -> Response:
+        suffix = Path(full_path).suffix.lower()
+        if suffix in WASM_EXTENSION_TEXT_STATIC_EXTENSIONS:
+            _reject_html_like_wasm_static_asset(Path(full_path))
+
+        response = super().file_response(full_path, stat_result, scope, status_code)
+        response.headers["Content-Type"] = WASM_EXTENSION_STATIC_MIME_TYPES[suffix]
+        response.headers["X-Content-Type-Options"] = "nosniff"
+        response.headers["Cache-Control"] = "no-store"
+        return response
+
+
+def mount_wasm_extension_static(app: FastAPI, extension: WasmExtension) -> None:
+    static_path = extension.root_path / "static"
+
+    mount_path = f"/ext-assets/{extension.id}"
+    if any(getattr(route, "path", None) == mount_path for route in app.routes):
+        return
+
+    app.mount(
+        mount_path,
+        GuardedWasmExtensionStaticFiles(directory=static_path, check_dir=False),
+        name=f"{extension.id}-static",
+    )
+
+
+def _reject_html_like_wasm_static_asset(path: Path) -> None:
+    with path.open("rb") as asset_file:
+        prefix = asset_file.read(512).lstrip().lower()
+    if prefix.startswith(WASM_EXTENSION_HTML_PREFIXES):
+        raise HTTPException(status_code=404)
+
+
+def _wasm_extension_core_asset_response(path: str) -> Response:
+    asset_name = path.removeprefix(f"{WASM_EXTENSION_CORE_ASSET_PREFIX}/")
+    if not asset_name or "/" in asset_name or "\\" in asset_name:
+        raise HTTPException(status_code=404)
+
+    generated_asset = WASM_EXTENSION_GENERATED_CORE_ASSETS.get(asset_name)
+    if generated_asset:
+        content, content_type = generated_asset
+        response = Response(content=content, media_type=content_type)
+        response.headers["X-Content-Type-Options"] = "nosniff"
+        response.headers["Cache-Control"] = "no-store"
+        return response
+
+    asset_config = WASM_EXTENSION_CORE_STATIC_ASSETS.get(asset_name)
+    if not asset_config:
+        raise HTTPException(status_code=404)
+
+    relative_path, content_type = asset_config
+    asset_path = Path(settings.lnbits_path, relative_path)
+    if not asset_path.is_file():
+        raise HTTPException(status_code=404)
+
+    response = FileResponse(asset_path)
+    response.headers["Content-Type"] = content_type
+    response.headers["X-Content-Type-Options"] = "nosniff"
+    response.headers["Cache-Control"] = "no-store"
+    return response

lnbits/core/wasm_ext/routes/register.py

@@ -0,0 +1,31 @@
+from __future__ import annotations
+
+from fastapi import FastAPI
+from loguru import logger
+
+from lnbits.core.db import core_app_extra
+from lnbits.settings import settings
+
+from ..wasm.component import warm_wasm_extension
+from ..wasm.loader import WasmExtension, load_wasm_extension
+from .api import register_wasm_extension_api_routes
+from .assets import mount_wasm_extension_static
+from .ui import register_wasm_extension_ui_routes
+
+
+def register_wasm_extension(app: FastAPI, ext_id: str) -> WasmExtension:
+    loaded = load_wasm_extension(ext_id)
+
+    warm_wasm_extension(loaded)
+    mount_wasm_extension_static(app, loaded)
+    register_wasm_extension_ui_routes(app, loaded)
+    register_wasm_extension_api_routes(app, loaded)
+
+    core_app_extra.wasm_extension_registry.register(loaded)
+
+    settings.activate_extension_paths(ext_id, "", [])
+    logger.info(
+        f"Loaded WASM extension '{loaded.id}' "
+        f"({loaded.module_path.stat().st_size} bytes)."
+    )
+    return loaded

lnbits/core/wasm_ext/routes/security.py

@@ -0,0 +1,127 @@
+from __future__ import annotations
+
+from typing import Any, NoReturn
+from uuid import uuid4
+
+from fastapi import HTTPException, Request
+from loguru import logger
+
+from lnbits.helpers import template_renderer
+from lnbits.utils.cache import cache
+
+from ..wasm.loader import WasmExtension
+
+WASM_FRAME_TOKEN_EXPIRY_SECONDS = 60
+
+
+def wasm_extension_wrapper_response(
+    request: Request,
+    extension: WasmExtension,
+    auth: str,
+    user_json: str | None,
+) -> Any:
+    public = auth == "public"
+    response = template_renderer().TemplateResponse(
+        request,
+        "wasm_extension.html",
+        {
+            "extension": extension,
+            "public": public,
+            "user": user_json,
+        },
+    )
+    response.headers["Content-Security-Policy"] = "frame-ancestors 'self'"
+    response.headers["X-Frame-Options"] = "SAMEORIGIN"
+    return response
+
+
+def wasm_extension_frame_csp(request: Request, extension: WasmExtension) -> str:
+    origin = str(request.base_url).rstrip("/")
+    extension_assets = f"{origin}/ext-assets/{extension.id}/"
+    return (
+        "sandbox allow-scripts; "
+        "default-src 'none'; "
+        f"script-src {extension_assets}; "
+        "script-src-attr 'none'; "
+        f"style-src {extension_assets}; "
+        "style-src-attr 'none'; "
+        f"img-src {extension_assets} data:; "
+        f"font-src {extension_assets}; "
+        "connect-src 'none'; "
+        "form-action 'none'; "
+        "object-src 'none'; "
+        "base-uri 'none'; "
+        "frame-src 'none'; "
+        "worker-src 'none'; "
+        "media-src 'none'; "
+        "manifest-src 'none'; "
+        "frame-ancestors 'self'"
+    )
+
+
+def wasm_extension_frame_url(
+    extension: WasmExtension, frame_path: str, user_id: str | None
+) -> str:
+    token = _create_wasm_extension_frame_token(extension, frame_path, user_id)
+    return f"{frame_path}?frame_token={token}"
+
+
+def consume_wasm_extension_frame_token(
+    request: Request,
+    extension: WasmExtension,
+    frame_path: str,
+    user_id: str | None,
+) -> None:
+    token = request.query_params.get("frame_token")
+    if not token:
+        _raise_wasm_extension_frame_not_found(extension, frame_path, "missing")
+
+    cache_key = _wasm_extension_frame_token_cache_key(token)
+    token_data = cache.get(cache_key)
+    if (
+        not isinstance(token_data, dict)
+        or token_data.get("extension_id") != extension.id
+        or token_data.get("frame_path") != frame_path
+    ):
+        _raise_wasm_extension_frame_not_found(
+            extension, frame_path, "unknown or expired"
+        )
+
+    token_user_id = token_data.get("user_id")
+    if token_user_id and token_user_id != user_id:
+        _raise_wasm_extension_frame_not_found(extension, frame_path, "wrong user")
+
+    cache.pop(cache_key)
+
+
+def _create_wasm_extension_frame_token(
+    extension: WasmExtension,
+    frame_path: str,
+    user_id: str | None,
+) -> str:
+    token = uuid4().hex
+    cache.set(
+        _wasm_extension_frame_token_cache_key(token),
+        {
+            "extension_id": extension.id,
+            "frame_path": frame_path,
+            "user_id": user_id,
+        },
+        expiry=WASM_FRAME_TOKEN_EXPIRY_SECONDS,
+    )
+    return token
+
+
+def _wasm_extension_frame_token_cache_key(token: str) -> str:
+    return f"wasm-frame-token:{token}"
+
+
+def _raise_wasm_extension_frame_not_found(
+    extension: WasmExtension,
+    frame_path: str,
+    reason: str,
+) -> NoReturn:
+    logger.warning(
+        f"WASM frame token {reason} for extension '{extension.id}' at '{frame_path}'."
+    )
+    raise HTTPException(status_code=404, detail="Not found")

lnbits/core/wasm_ext/routes/ui.py

@@ -0,0 +1,368 @@
+from __future__ import annotations
+
+from pathlib import Path
+from typing import Annotated, Any
+
+from fastapi import Depends, FastAPI, HTTPException, Request
+from fastapi.responses import FileResponse
+from pydantic import UUID4
+
+from lnbits.core.crud import get_installed_extension, get_user_from_account
+from lnbits.core.models import Account
+from lnbits.decorators import (
+    check_access_token,
+    check_account_exists,
+    optional_user_id,
+)
+
+from ..wasm.loader import WasmExtension
+from .api import (
+    _has_route,
+    _path_template_pattern,
+    _read_json_object,
+    _snake_to_camel,
+    _wasm_extension_api_export,
+    _wasm_extension_api_method,
+    _wasm_extension_api_path,
+    _wasm_extension_route_auth,
+)
+from .security import (
+    consume_wasm_extension_frame_token,
+    wasm_extension_frame_csp,
+    wasm_extension_frame_url,
+    wasm_extension_wrapper_response,
+)
+
+
+def register_wasm_extension_ui_routes(app: FastAPI, extension: WasmExtension) -> None:
+    _add_wasm_extension_frame_config_route(app, extension)
+
+    for route_index, route_config in enumerate(extension.config.get("ui_routes") or []):
+        route_path = _wasm_extension_ui_route_path(extension, route_config.get("path"))
+        entrypoint = _wasm_extension_entrypoint(
+            extension, route_config.get("entrypoint")
+        )
+        frame_path = f"/ext-frame/{extension.id}/{route_index}"
+        auth = _wasm_extension_route_auth(extension, route_config.get("auth"))
+        _add_wasm_extension_frame_route(app, extension, frame_path, entrypoint)
+        _add_wasm_extension_wrapper_route(
+            app,
+            extension,
+            route_path,
+            auth,
+        )
+
+
+def _add_wasm_extension_frame_config_route(
+    app: FastAPI,
+    extension: WasmExtension,
+) -> None:
+    route_path = _wasm_extension_frame_config_path(extension)
+    if _has_route(app, route_path, "POST"):
+        return
+
+    async def create_wasm_extension_frame_config(
+        request: Request,
+        access_token: Annotated[str | None, Depends(check_access_token)],
+        usr: UUID4 | None = None,
+    ) -> dict[str, Any]:
+        try:
+            body = await _read_json_object(request)
+        except (TypeError, ValueError) as exc:
+            raise HTTPException(status_code=400, detail=str(exc)) from exc
+
+        ui_route = _match_wasm_extension_ui_route(extension, body.get("path"))
+        auth = ui_route["auth"]
+
+        if auth == "user":
+            account = await check_account_exists(request, access_token, usr)
+            user_id: str | None = account.id
+        else:
+            user_id = await _optional_wasm_user_id(request, access_token, usr)
+
+        granted_permission_ids = await _wasm_extension_granted_permission_ids(extension)
+
+        return _wasm_extension_frame_config(
+            extension,
+            ui_route["frame_path"],
+            auth,
+            ui_route["path_params"],
+            ui_route["route_params"],
+            _read_wasm_extension_route_query(body.get("query")),
+            user_id,
+            granted_permission_ids,
+        )
+
+    app.add_api_route(
+        route_path,
+        create_wasm_extension_frame_config,
+        methods=["POST"],
+        name=f"{extension.id}:frame-config",
+        include_in_schema=False,
+    )
+
+
+def _add_wasm_extension_wrapper_route(
+    app: FastAPI,
+    extension: WasmExtension,
+    route_path: str,
+    auth: str,
+) -> None:
+    if _has_route(app, route_path, "GET"):
+        return
+
+    async def serve_private_wasm_extension_page(
+        request: Request,
+        account: Account = Depends(check_account_exists),
+    ) -> Any:
+        user = await get_user_from_account(account)
+        return wasm_extension_wrapper_response(
+            request,
+            extension,
+            auth,
+            user.json() if user else None,
+        )
+
+    async def serve_public_wasm_extension_page(request: Request) -> Any:
+        return wasm_extension_wrapper_response(
+            request,
+            extension,
+            auth,
+            None,
+        )
+
+    app.add_api_route(
+        route_path,
+        (
+            serve_public_wasm_extension_page
+            if auth == "public"
+            else serve_private_wasm_extension_page
+        ),
+        methods=["GET"],
+        name=f"{extension.id}:{route_path}",
+        include_in_schema=False,
+    )
+
+
+def _add_wasm_extension_frame_route(
+    app: FastAPI,
+    extension: WasmExtension,
+    frame_path: str,
+    entrypoint: Path,
+) -> None:
+    if _has_route(app, frame_path, "GET"):
+        return
+
+    async def serve_wasm_extension_frame(
+        request: Request,
+        user_id: str | None = Depends(_optional_wasm_user_id),
+    ) -> FileResponse:
+        consume_wasm_extension_frame_token(request, extension, frame_path, user_id)
+        response = FileResponse(entrypoint)
+        response.headers["Content-Security-Policy"] = wasm_extension_frame_csp(
+            request, extension
+        )
+        response.headers["Cache-Control"] = "no-store"
+        response.headers["Cross-Origin-Opener-Policy"] = "same-origin"
+        response.headers["Cross-Origin-Resource-Policy"] = "same-origin"
+        # Extension access goes through the parent bridge.
+        response.headers["Permissions-Policy"] = (
+            "camera=(), microphone=(), geolocation=(), payment=(), "
+            "clipboard-read=(), usb=()"
+        )
+        response.headers["Referrer-Policy"] = "no-referrer"
+        response.headers["X-Content-Type-Options"] = "nosniff"
+        return response
+
+    app.add_api_route(
+        frame_path,
+        serve_wasm_extension_frame,
+        methods=["GET"],
+        name=f"{extension.id}:frame:{frame_path}",
+        include_in_schema=False,
+    )
+
+
+def _wasm_extension_bridge_api_routes(
+    extension: WasmExtension,
+    public: bool,
+) -> list[dict[str, str]]:
+    routes: list[dict[str, str]] = []
+    for route_config in extension.config.get("api_routes") or []:
+        auth = _wasm_extension_route_auth(extension, route_config.get("auth"))
+        if public and auth != "public":
+            continue
+        method = _wasm_extension_api_method(extension, route_config.get("method"))
+        path = _wasm_extension_api_path(extension, route_config.get("path"))
+        _wasm_extension_api_export(extension, route_config.get("export"))
+        routes.append(
+            {
+                "method": method,
+                "path": path,
+                "pattern": _path_template_pattern(path),
+            }
+        )
+    return routes
+
+
+def _wasm_extension_frame_config_path(extension: WasmExtension) -> str:
+    return f"/api/v1/ext/{extension.id}/_ui/frame"
+
+
+def _match_wasm_extension_ui_route(
+    extension: WasmExtension,
+    path: Any,
+) -> dict[str, Any]:
+    if not isinstance(path, str) or not path.startswith("/"):
+        raise HTTPException(status_code=404, detail="Not found")
+
+    for route_index, route_config in enumerate(extension.config.get("ui_routes") or []):
+        route_path = _wasm_extension_ui_route_path(extension, route_config.get("path"))
+        route_params = _path_template_params(route_path, path)
+        if route_params is None:
+            continue
+
+        return {
+            "frame_path": f"/ext-frame/{extension.id}/{route_index}",
+            "auth": _wasm_extension_route_auth(extension, route_config.get("auth")),
+            "path_params": route_config.get("path_params") or {},
+            "route_params": route_params,
+        }
+
+    raise HTTPException(status_code=404, detail="Not found")
+
+
+def _path_template_params(template: str, path: str) -> dict[str, str] | None:
+    template_parts = _path_parts(template)
+    path_parts = _path_parts(path)
+    if len(template_parts) != len(path_parts):
+        return None
+
+    params: dict[str, str] = {}
+    for template_part, path_part in zip(template_parts, path_parts, strict=False):
+        if template_part.startswith("{") and template_part.endswith("}"):
+            param_name = template_part[1:-1]
+            if not param_name:
+                return None
+            params[param_name] = path_part
+            continue
+
+        if template_part != path_part:
+            return None
+
+    return params
+
+
+def _path_parts(path: str) -> list[str]:
+    return [part for part in path.strip("/").split("/") if part]
+
+
+def _wasm_extension_frame_config(
+    extension: WasmExtension,
+    frame_path: str,
+    auth: str,
+    path_params: dict[str, str],
+    route_params: dict[str, str],
+    query: dict[str, Any],
+    user_id: str | None,
+    permissions: set[str],
+) -> dict[str, Any]:
+    public = auth == "public"
+    return {
+        "extension": {
+            "id": extension.id,
+            "name": extension.name,
+        },
+        "frameUrl": wasm_extension_frame_url(extension, frame_path, user_id),
+        "bridge": {
+            "extensionId": extension.id,
+            "public": public,
+            "routeParams": _map_wasm_extension_route_params(route_params, path_params),
+            "query": query,
+            "permissions": sorted(permissions),
+            "apiRoutes": _wasm_extension_bridge_api_routes(extension, public),
+        },
+    }
+
+
+async def _wasm_extension_granted_permission_ids(
+    extension: WasmExtension,
+) -> set[str]:
+    installed_extension = await get_installed_extension(extension.id)
+    if not installed_extension:
+        return set()
+    return {permission.id for permission in installed_extension.permissions}
+
+
+def _map_wasm_extension_route_params(
+    route_params: dict[str, str],
+    path_params: dict[str, str],
+) -> dict[str, str]:
+    payload: dict[str, str] = {}
+    for key, value in route_params.items():
+        target = path_params.get(key) or _snake_to_camel(key)
+        payload[target] = value
+    return payload
+
+
+def _read_wasm_extension_route_query(query: Any) -> dict[str, Any]:
+    if not isinstance(query, dict):
+        return {}
+
+    payload: dict[str, Any] = {}
+    for key, value in query.items():
+        if value is None:
+            continue
+        payload[_snake_to_camel(str(key))] = value
+    return payload
+
+
+async def _optional_wasm_user_id(
+    request: Request,
+    access_token: Annotated[str | None, Depends(check_access_token)],
+    usr: UUID4 | None = None,
+) -> str | None:
+    try:
+        return await optional_user_id(request, access_token, usr)
+    except HTTPException:
+        return None
+
+
+def _wasm_extension_ui_route_path(extension: WasmExtension, path: Any) -> str:
+    if not isinstance(path, str) or not path.startswith("/"):
+        raise ValueError(f"Invalid route path for WASM extension '{extension.id}'.")
+    if path == "/":
+        return "/ext"
+    return f"/ext{path}"
+
+
+def _wasm_extension_entrypoint(extension: WasmExtension, entrypoint: Any) -> Path:
+    if not isinstance(entrypoint, str) or not entrypoint:
+        raise ValueError(
+            f"Invalid route entrypoint for WASM extension '{extension.id}'."
+        )
+    if entrypoint.startswith("/"):
+        raise ValueError(
+            f"Route entrypoint for WASM extension '{extension.id}' must be a "
+            "relative extension path."
+        )
+
+    path = (extension.root_path / entrypoint).resolve()
+    root_path = extension.root_path.resolve()
+    if path != root_path and root_path not in path.parents:
+        raise ValueError(f"Route entrypoint escapes extension root: {entrypoint}")
+
+    static_path = (extension.root_path / "static").resolve()
+    if path == static_path or static_path in path.parents:
+        raise ValueError(
+            f"Route entrypoint for WASM extension '{extension.id}' must not be "
+            "inside the static asset directory."
+        )
+    if path.suffix.lower() != ".html":
+        raise ValueError(
+            f"Route entrypoint for WASM extension '{extension.id}' must be "
+            "an HTML file."
+        )
+    if not path.is_file():
+        raise FileNotFoundError(f"Route entrypoint not found: {path}")
+    return path

lnbits/core/wasm_ext/storage/__init__.py

@@ -0,0 +1,19 @@
+from .crud import (
+    migrate_wasm_extension_database,
+    storage_delete_row,
+    storage_get_paginated_rows,
+    storage_get_public_row,
+    storage_get_row,
+    storage_get_row_owner_id,
+    storage_set_row,
+)
+
+__all__ = [
+    "migrate_wasm_extension_database",
+    "storage_delete_row",
+    "storage_get_paginated_rows",
+    "storage_get_public_row",
+    "storage_get_row",
+    "storage_get_row_owner_id",
+    "storage_set_row",
+]

lnbits/core/wasm_ext/storage/crud.py

@@ -0,0 +1,627 @@
+from __future__ import annotations
+
+import json
+import re
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Any
+
+from loguru import logger
+
+from lnbits.core.crud import update_migration_version
+from lnbits.core.db import db as core_db
+from lnbits.core.models import DbVersion
+from lnbits.core.models.extensions import InstallableExtension
+from lnbits.db import POSTGRES, SQLITE, Connection, Database
+from lnbits.settings import settings
+
+_MIGRATION_FILE_RE = re.compile(r"^(\d+)_.*\.json$")
+_SQL_IDENTIFIER_RE = re.compile(r"^[A-Za-z_][A-Za-z0-9_]*$")
+OWNER_ID_FIELD = "__lnbits_owner_id__"
+
+
+async def storage_get_row(
+    ext_id: str,
+    table: str,
+    row_id: str,
+    owner_id: str,
+) -> dict[str, Any] | None:
+    table_schema = _load_table_schema(ext_id, table)
+    query = f"""
+        SELECT * FROM {_table_ref_for_schema(ext_id, table)}
+        WHERE id = :id AND {OWNER_ID_FIELD} = :owner_id
+    """  # noqa: S608
+    async with Database(f"ext_{ext_id}").connect() as conn:
+        row = await conn.fetchone(query, {"id": row_id, "owner_id": owner_id})
+    return _row_from_db(table_schema, row) if row else None
+
+
+async def storage_get_public_row(
+    ext_id: str,
+    table: str,
+    row_id: str,
+) -> dict[str, Any] | None:
+    table_schema = _load_table_schema(ext_id, table)
+    query = f"""
+        SELECT * FROM {_table_ref_for_schema(ext_id, table)}
+        WHERE id = :id
+    """  # noqa: S608
+    async with Database(f"ext_{ext_id}").connect() as conn:
+        row = await conn.fetchone(query, {"id": row_id})
+    return _row_from_db(table_schema, row) if row else None
+
+
+async def storage_get_row_owner_id(
+    ext_id: str,
+    table: str,
+    row_id: str,
+) -> str | None:
+    _load_table_schema(ext_id, table)
+    query = f"""
+        SELECT {OWNER_ID_FIELD} FROM {_table_ref_for_schema(ext_id, table)}
+        WHERE id = :id
+    """  # noqa: S608
+    async with Database(f"ext_{ext_id}").connect() as conn:
+        row = await conn.fetchone(query, {"id": row_id})
+
+    owner_id = row[OWNER_ID_FIELD] if row else None
+    return owner_id if isinstance(owner_id, str) and owner_id else None
+
+
+async def storage_set_row(
+    ext_id: str,
+    table: str,
+    data: dict[str, Any],
+    owner_id: str,
+) -> None:
+    table_schema = _load_table_schema(ext_id, table)
+    clean_data = _data_to_db(table_schema, data, require_id=True)
+    clean_data[OWNER_ID_FIELD] = owner_id
+    columns = list(clean_data.keys())
+    placeholders = [f":{column}" for column in columns]
+    updates = [
+        f"{column} = excluded.{column}"
+        for column in columns
+        if column not in ("id", OWNER_ID_FIELD)
+    ]
+    conflict_sql = (
+        "DO UPDATE SET "
+        + ", ".join(updates)
+        + f" WHERE {OWNER_ID_FIELD} = :{OWNER_ID_FIELD}"
+        if updates
+        else "DO NOTHING"
+    )
+    query = f"""
+        INSERT INTO {_table_ref_for_schema(ext_id, table)}
+            ({", ".join(columns)})
+        VALUES
+            ({", ".join(placeholders)})
+        ON CONFLICT (id) {conflict_sql}
+    """  # noqa: S608
+
+    async with Database(f"ext_{ext_id}").connect() as conn:
+        await conn.execute(query, clean_data)
+
+
+async def storage_get_paginated_rows(
+    ext_id: str,
+    table: str,
+    filters: dict[str, Any],
+    *,
+    owner_id: str,
+    search: str | None,
+    search_fields: list[str],
+    sort_by: str | None,
+    descending: bool,
+    limit: int,
+    offset: int,
+) -> dict[str, Any]:
+    table_schema = _load_table_schema(ext_id, table)
+    where_sql, values = _where_sql(table_schema, filters, search, search_fields)
+    where_sql = _append_owner_where_sql(where_sql)
+    values[OWNER_ID_FIELD] = owner_id
+    order_sql = _order_sql(table_schema, sort_by, descending)
+    count_values = dict(values)
+    values.update({"limit": min(limit, 1000), "offset": offset})
+
+    table_ref = _table_ref_for_schema(ext_id, table)
+    rows_query = f"""
+        SELECT * FROM {table_ref}
+        {where_sql}
+        {order_sql}
+        LIMIT :limit
+        OFFSET :offset
+    """  # noqa: S608
+    count_query = f"""
+        SELECT COUNT(*) AS count FROM {table_ref}
+        {where_sql}
+    """  # noqa: S608
+
+    async with Database(f"ext_{ext_id}").connect() as conn:
+        rows = await conn.fetchall(rows_query, values)
+        count_row = await conn.fetchone(count_query, count_values)
+
+    return {
+        "data": [_row_from_db(table_schema, row) for row in rows],
+        "total": int(count_row["count"]) if count_row else 0,
+    }
+
+
+async def storage_delete_row(
+    ext_id: str,
+    table: str,
+    row_id: str,
+    owner_id: str,
+) -> None:
+    _load_table_schema(ext_id, table)
+    query = f"""
+        DELETE FROM {_table_ref_for_schema(ext_id, table)}
+        WHERE id = :id AND {OWNER_ID_FIELD} = :owner_id
+    """  # noqa: S608
+    async with Database(f"ext_{ext_id}").connect() as conn:
+        await conn.execute(query, {"id": row_id, "owner_id": owner_id})
+
+
+async def migrate_wasm_extension_database(
+    ext: InstallableExtension,
+    current_version: DbVersion | None = None,
+) -> None:
+    migrations_dir = ext.ext_dir / "storage" / "migrations"
+    migration_files = _migration_files(migrations_dir)
+    if not migration_files:
+        logger.debug(f"No storage migrations for WASM extension '{ext.id}'.")
+        return
+
+    ext_db = Database(f"ext_{ext.id}")
+    async with ext_db.connect() as conn:
+        for version, path in migration_files:
+            if current_version and version <= current_version.version:
+                continue
+            logger.debug(f"running WASM storage migration {ext.id}.{version}")
+            print(f"running migration {ext.id}.{version}")
+            await _run_storage_migration(conn, path)
+            await _update_wasm_migration_version(conn, ext.id, version)
+
+
+def _migration_files(migrations_dir: Path) -> list[tuple[int, Path]]:
+    if not migrations_dir.is_dir():
+        return []
+
+    files: list[tuple[int, Path]] = []
+    for path in migrations_dir.glob("*.json"):
+        match = _MIGRATION_FILE_RE.match(path.name)
+        if not match:
+            raise ValueError(f"Invalid WASM storage migration filename: {path.name}")
+        files.append((int(match.group(1)), path))
+    return sorted(files)
+
+
+async def _run_storage_migration(db: Connection, path: Path) -> None:
+    migration = _load_json(path)
+    operations = migration.get("operations")
+    if not isinstance(operations, list):
+        raise ValueError(f"WASM storage migration '{path}' has no operations list.")
+
+    for operation in operations:
+        if not isinstance(operation, dict):
+            raise ValueError(f"WASM storage migration '{path}' has invalid operation.")
+        sql = _operation_sql(db, operation)
+        await db.execute(sql)
+
+
+def _operation_sql(db: Connection, operation: dict[str, Any]) -> str:
+    op = operation.get("op")
+    if op == "create_table":
+        return _create_table_sql(db, operation)
+    if op == "add_field":
+        return _add_field_sql(db, operation)
+    if op == "create_index":
+        return _create_index_sql(db, operation)
+    raise ValueError(f"Unsupported WASM storage migration operation: {op}")
+
+
+def _create_table_sql(db: Connection, operation: dict[str, Any]) -> str:
+    table = _require_identifier(operation, "table")
+    fields = _require_fields(operation)
+    if not any(field.get("name") == "id" for field in fields):
+        raise ValueError(f"WASM storage table '{table}' must define an id field.")
+    if any(field.get("name") == OWNER_ID_FIELD for field in fields):
+        raise ValueError(
+            f"WASM storage table '{table}' defines reserved field '{OWNER_ID_FIELD}'."
+        )
+
+    columns = [
+        _column_sql(db, field, primary_key=field.get("name") == "id")
+        for field in fields
+    ]
+    columns.append(f"{OWNER_ID_FIELD} TEXT NOT NULL")
+    return f"""
+        CREATE TABLE IF NOT EXISTS {_table_ref(db, table)} (
+            {", ".join(columns)}
+        );
+    """
+
+
+def _add_field_sql(db: Connection, operation: dict[str, Any]) -> str:
+    table = _require_identifier(operation, "table")
+    field = _field_from_add_field_operation(operation)
+    if field["name"] == OWNER_ID_FIELD:
+        raise ValueError(
+            f"WASM storage table '{table}' cannot add reserved field "
+            f"'{OWNER_ID_FIELD}'."
+        )
+    return f"""
+        ALTER TABLE {_table_ref(db, table)}
+        ADD COLUMN {_column_sql(db, field)};
+    """
+
+
+def _create_index_sql(db: Connection, operation: dict[str, Any]) -> str:
+    table = _require_identifier(operation, "table")
+    name = _require_identifier(operation, "name")
+    field = _require_identifier(operation, "field")
+    if field == OWNER_ID_FIELD:
+        raise ValueError(
+            f"WASM storage table '{table}' cannot index reserved field "
+            f"'{OWNER_ID_FIELD}'."
+        )
+
+    if db.type == SQLITE and db.schema:
+        return f"""
+            CREATE INDEX IF NOT EXISTS {_schema_ref(db, name)}
+            ON {table} ({field});
+        """
+
+    return f"""
+        CREATE INDEX IF NOT EXISTS {name}
+        ON {_table_ref(db, table)} ({field});
+    """
+
+
+def _column_sql(
+    db: Connection,
+    field: dict[str, Any],
+    *,
+    primary_key: bool = False,
+) -> str:
+    name = _require_identifier(field, "name")
+    column_type = _field_type_sql(db, field)
+    parts = [name, column_type]
+
+    if primary_key:
+        parts.append("PRIMARY KEY")
+    elif not field.get("nullable", False):
+        parts.append("NOT NULL")
+
+    if "default" in field:
+        parts.append(f"DEFAULT {_default_sql(field['default'])}")
+
+    return " ".join(parts)
+
+
+def _field_type_sql(db: Connection, field: dict[str, Any]) -> str:
+    if field.get("list") is True:
+        return "TEXT"
+
+    field_type = field.get("type")
+    if field_type == "string":
+        return "TEXT"
+    if field_type == "integer":
+        return db.big_int
+    if field_type == "number":
+        return "DOUBLE PRECISION" if db.type == POSTGRES else "REAL"
+    if field_type == "boolean":
+        return "BOOLEAN"
+    if field_type == "datetime":
+        return "TIMESTAMP"
+    raise ValueError(f"Unsupported WASM storage field type: {field_type}")
+
+
+def _load_table_schema(ext_id: str, table: str) -> dict[str, Any]:
+    schema = _load_storage_schema(ext_id)
+    tables = schema.get("tables")
+    if not isinstance(tables, dict):
+        raise ValueError(f"WASM extension '{ext_id}' has no storage tables schema.")
+
+    _require_identifier({"table": table}, "table")
+    table_schema = tables.get(table)
+    if not isinstance(table_schema, dict):
+        raise ValueError(f"WASM extension '{ext_id}' has no storage table '{table}'.")
+
+    fields = table_schema.get("fields")
+    if not isinstance(fields, list) or not fields:
+        raise ValueError(f"WASM storage table '{table}' has no fields schema.")
+
+    for field in fields:
+        if not isinstance(field, dict):
+            raise ValueError(f"WASM storage table '{table}' has invalid field schema.")
+        _require_identifier(field, "name")
+        if field["name"] == OWNER_ID_FIELD:
+            raise ValueError(
+                f"WASM storage table '{table}' defines reserved field "
+                f"'{OWNER_ID_FIELD}'."
+            )
+    return table_schema
+
+
+def _load_storage_schema(ext_id: str) -> dict[str, Any]:
+    schema_path = (
+        Path(settings.lnbits_extensions_path)
+        / "extensions"
+        / ext_id
+        / "storage"
+        / "schema.json"
+    )
+    if not schema_path.is_file():
+        raise ValueError(f"WASM extension '{ext_id}' has no storage schema.")
+    return _load_json(schema_path)
+
+
+def _data_to_db(
+    table_schema: dict[str, Any],
+    data: dict[str, Any],
+    *,
+    require_id: bool,
+) -> dict[str, Any]:
+    if not isinstance(data, dict):
+        raise ValueError("WASM storage row data must be an object.")
+    if require_id and not data.get("id"):
+        raise ValueError("WASM storage row data must include an id.")
+    _reject_reserved_owner_field(data, "row")
+
+    fields = _fields_by_name(table_schema)
+    unknown_fields = sorted(set(data) - set(fields))
+    if unknown_fields:
+        raise ValueError(
+            "WASM storage row has unknown fields: " + ", ".join(unknown_fields)
+        )
+
+    return {
+        field_name: _value_to_db(fields[field_name], value)
+        for field_name, value in data.items()
+    }
+
+
+def _filters_to_db(
+    table_schema: dict[str, Any],
+    filters: dict[str, Any],
+) -> dict[str, Any]:
+    if not isinstance(filters, dict):
+        raise ValueError("WASM storage filters must be an object.")
+    _reject_reserved_owner_field(filters, "filters")
+
+    fields = _fields_by_name(table_schema)
+    unknown_fields = sorted(set(filters) - set(fields))
+    if unknown_fields:
+        raise ValueError(
+            "WASM storage filters have unknown fields: " + ", ".join(unknown_fields)
+        )
+
+    return {
+        field_name: _value_to_db(fields[field_name], value)
+        for field_name, value in filters.items()
+    }
+
+
+def _where_sql(
+    table_schema: dict[str, Any],
+    filters: dict[str, Any],
+    search: str | None,
+    search_fields: list[str],
+) -> tuple[str, dict[str, Any]]:
+    clean_filters = _filters_to_db(table_schema, filters)
+    clauses = [f"{field} = :filter_{field}" for field in clean_filters]
+    values = {f"filter_{field}": value for field, value in clean_filters.items()}
+
+    clean_search = search.strip().lower() if search else ""
+    if clean_search:
+        fields = _fields_by_name(table_schema)
+        invalid_fields = sorted(set(search_fields) - set(fields))
+        if invalid_fields:
+            raise ValueError(
+                "WASM storage search has unknown fields: " + ", ".join(invalid_fields)
+            )
+        if search_fields:
+            search_clause = " OR ".join(
+                f"LOWER(CAST({field} AS TEXT)) LIKE :search" for field in search_fields
+            )
+            clauses.append(f"({search_clause})")
+            values["search"] = f"%{clean_search}%"
+
+    return ("WHERE " + " AND ".join(clauses), values) if clauses else ("", values)
+
+
+def _append_owner_where_sql(where_sql: str) -> str:
+    owner_clause = f"{OWNER_ID_FIELD} = :{OWNER_ID_FIELD}"
+    if where_sql:
+        return f"{where_sql} AND {owner_clause}"
+    return f"WHERE {owner_clause}"
+
+
+def _order_sql(
+    table_schema: dict[str, Any],
+    sort_by: str | None,
+    descending: bool,
+) -> str:
+    if not sort_by:
+        return ""
+    fields = _fields_by_name(table_schema)
+    if sort_by not in fields:
+        raise ValueError(f"WASM storage sort field is unknown: {sort_by}")
+    direction = "DESC" if descending else "ASC"
+    return f"ORDER BY {sort_by} {direction}"
+
+
+def _row_from_db(
+    table_schema: dict[str, Any],
+    row: dict[str, Any],
+) -> dict[str, Any]:
+    fields = _fields_by_name(table_schema)
+    return {
+        field_name: _value_from_db(fields[field_name], value)
+        for field_name, value in dict(row).items()
+        if field_name in fields
+    }
+
+
+def _fields_by_name(table_schema: dict[str, Any]) -> dict[str, dict[str, Any]]:
+    fields = table_schema.get("fields")
+    if not isinstance(fields, list):
+        raise ValueError("WASM storage table schema fields must be a list.")
+    return {field["name"]: field for field in fields}
+
+
+def _reject_reserved_owner_field(data: dict[str, Any], value_name: str) -> None:
+    if OWNER_ID_FIELD in data:
+        raise ValueError(f"WASM storage {value_name} includes a reserved owner field.")
+
+
+def _value_to_db(field: dict[str, Any], value: Any) -> Any:  # noqa: C901
+    if value is None:
+        if field.get("nullable", False):
+            return None
+        raise ValueError(f"WASM storage field '{field['name']}' cannot be null.")
+
+    if field.get("list") is True:
+        if not isinstance(value, list):
+            raise ValueError(f"WASM storage field '{field['name']}' must be a list.")
+        return json.dumps(value)
+
+    field_type = field.get("type")
+    if field_type == "string":
+        if not isinstance(value, str):
+            raise ValueError(f"WASM storage field '{field['name']}' must be a string.")
+        return value
+    if field_type == "integer":
+        if isinstance(value, bool) or not isinstance(value, int):
+            raise ValueError(
+                f"WASM storage field '{field['name']}' must be an integer."
+            )
+        return value
+    if field_type == "number":
+        if isinstance(value, bool) or not isinstance(value, int | float):
+            raise ValueError(f"WASM storage field '{field['name']}' must be a number.")
+        return value
+    if field_type == "boolean":
+        if not isinstance(value, bool):
+            raise ValueError(f"WASM storage field '{field['name']}' must be a boolean.")
+        return value
+    if field_type == "datetime":
+        if isinstance(value, int | float):
+            return datetime.fromtimestamp(value, tz=timezone.utc)
+        if isinstance(value, datetime):
+            return value
+        raise ValueError(
+            f"WASM storage field '{field['name']}' must be a Unix timestamp."
+        )
+    raise ValueError(f"Unsupported WASM storage field type: {field_type}")
+
+
+def _value_from_db(field: dict[str, Any], value: Any) -> Any:
+    if value is None:
+        return None
+
+    if field.get("list") is True:
+        if isinstance(value, str):
+            return json.loads(value)
+        return value
+
+    field_type = field.get("type")
+    if field_type == "boolean":
+        return bool(value)
+    if field_type == "datetime":
+        if isinstance(value, datetime):
+            return int(value.replace(tzinfo=timezone.utc).timestamp())
+        if isinstance(value, int | float):
+            return int(value)
+        if isinstance(value, str):
+            try:
+                return int(datetime.fromisoformat(value).timestamp())
+            except ValueError:
+                return value
+    return value
+
+
+def _default_sql(value: Any) -> str:
+    if value is None:
+        return "NULL"
+    if isinstance(value, bool):
+        return "true" if value else "false"
+    if isinstance(value, int | float):
+        return str(value)
+    if isinstance(value, str):
+        return _quote_sql_string(value)
+    if isinstance(value, list | dict):
+        return _quote_sql_string(json.dumps(value))
+    raise ValueError(f"Unsupported WASM storage default value: {value}")
+
+
+def _field_from_add_field_operation(operation: dict[str, Any]) -> dict[str, Any]:
+    field = {
+        "name": operation.get("field"),
+        "type": operation.get("type"),
+    }
+    for key in ("default", "list", "nullable"):
+        if key in operation:
+            field[key] = operation[key]
+    return field
+
+
+def _require_fields(operation: dict[str, Any]) -> list[dict[str, Any]]:
+    fields = operation.get("fields")
+    if not isinstance(fields, list) or not fields:
+        raise ValueError("WASM storage create_table operation requires fields.")
+    if not all(isinstance(field, dict) for field in fields):
+        raise ValueError("WASM storage fields must be objects.")
+    return fields
+
+
+def _require_identifier(data: dict[str, Any], key: str) -> str:
+    value = data.get(key)
+    if not isinstance(value, str) or not _SQL_IDENTIFIER_RE.match(value):
+        raise ValueError(f"Invalid WASM storage SQL identifier for '{key}': {value}")
+    return value
+
+
+def _table_ref(db: Connection, table: str) -> str:
+    if db.schema:
+        return f"{_schema_ref(db, table)}"
+    return table
+
+
+def _table_ref_for_schema(ext_id: str, table: str) -> str:
+    _require_identifier({"schema": ext_id}, "schema")
+    _require_identifier({"table": table}, "table")
+    return f"{ext_id}.{table}"
+
+
+def _schema_ref(db: Connection, name: str) -> str:
+    if not db.schema:
+        return name
+    if not _SQL_IDENTIFIER_RE.match(db.schema):
+        raise ValueError(f"Invalid WASM extension storage schema: {db.schema}")
+    return f"{db.schema}.{name}"
+
+
+def _quote_sql_string(value: str) -> str:
+    return "'" + value.replace("'", "''") + "'"
+
+
+def _load_json(path: Path) -> dict[str, Any]:
+    with open(path, encoding="utf-8") as json_file:
+        data = json.load(json_file)
+    if not isinstance(data, dict):
+        raise ValueError(f"WASM storage migration '{path}' must be a JSON object.")
+    return data
+
+
+async def _update_wasm_migration_version(
+    db: Connection,
+    ext_id: str,
+    version: int,
+) -> None:
+    if db.schema is None:
+        await update_migration_version(db, ext_id, version)
+    else:
+        async with core_db.connect() as conn:
+            await update_migration_version(conn, ext_id, version)

lnbits/core/wasm_ext/wasm/__init__.py

@@ -0,0 +1,13 @@
+from .component import warm_wasm_extension
+from .events import dispatch_wasm_invoice_paid
+from .invoke import invoke_wasm_extension_export
+from .loader import WasmExtension, is_wasm_extension_dir, is_wasm_extension_id
+
+__all__ = [
+    "WasmExtension",
+    "dispatch_wasm_invoice_paid",
+    "invoke_wasm_extension_export",
+    "is_wasm_extension_dir",
+    "is_wasm_extension_id",
+    "warm_wasm_extension",
+]

lnbits/core/wasm_ext/wasm/component.py

@@ -0,0 +1,39 @@
+from __future__ import annotations
+
+from functools import lru_cache
+from typing import Any
+
+from wasmtime import Config, Engine
+
+from .loader import WasmExtension
+
+
+def warm_wasm_extension(extension: WasmExtension) -> None:
+    _wasm_component(extension)
+
+
+@lru_cache(maxsize=1)
+def _wasm_engine() -> Any:
+    config = Config()
+    config.wasm_component_model = True
+    return Engine(config)
+
+
+def _wasm_component(extension: WasmExtension) -> Any:
+    stat = extension.module_path.stat()
+    return _cached_wasm_component(
+        str(extension.module_path),
+        stat.st_mtime_ns,
+        stat.st_size,
+    )
+
+
+@lru_cache(maxsize=32)
+def _cached_wasm_component(
+    module_path: str,
+    mtime_ns: int,
+    size: int,
+) -> Any:
+    from wasmtime import component
+
+    return component.Component.from_file(_wasm_engine(), module_path)

lnbits/core/wasm_ext/wasm/events.py

@@ -0,0 +1,122 @@
+import json
+from typing import Any
+
+from loguru import logger
+
+from lnbits.core.db import core_app_extra
+from lnbits.core.wasm_ext.storage.crud import storage_get_row_owner_id
+from lnbits.core.wasm_ext.wasm.invoke import invoke_wasm_extension_export
+
+
+async def dispatch_wasm_invoice_paid(payment: Any) -> None:
+    extension_id = _payment_extension_id(payment)
+    if not extension_id:
+        return
+
+    extension = core_app_extra.wasm_extension_registry.get(extension_id)
+    if not extension:
+        return
+
+    export_name = _wasm_invoice_paid_export(extension.config)
+    if not export_name:
+        return
+
+    if not _is_wasm_event_export(extension, export_name):
+        logger.warning(
+            f"WASM extension '{extension.id}' declares invalid onInvoicePaid "
+            f"export '{export_name}'."
+        )
+        return
+
+    try:
+        await invoke_wasm_extension_export(
+            extension.id,
+            export_name,
+            _wasm_invoice_paid_payload(payment),
+            context="event",
+            owner_id=await _wasm_invoice_paid_owner_id(extension, payment),
+        )
+    except Exception as exc:
+        logger.warning(
+            f"WASM extension '{extension.id}' failed to handle paid invoice "
+            f"'{payment.payment_hash}': {exc!s}"
+        )
+
+
+def _payment_extension_id(payment: Any) -> str | None:
+    if isinstance(payment.extension, str) and payment.extension:
+        return payment.extension
+
+    extra = payment.extra or {}
+    tag = extra.get("tag") or payment.tag
+    return tag if isinstance(tag, str) and tag else None
+
+
+async def _wasm_invoice_paid_owner_id(extension: Any, payment: Any) -> str | None:
+    source_id = _payment_source_id(payment)
+    source_tables = _wasm_public_invoice_source_tables(extension.config)
+    if not source_id or not source_tables:
+        return None
+
+    for source_table in source_tables:
+        owner_id = await storage_get_row_owner_id(extension.id, source_table, source_id)
+        if owner_id:
+            return owner_id
+    return None
+
+
+def _payment_source_id(payment: Any) -> str | None:
+    extra = payment.extra or {}
+    source_id = extra.get("source_id")
+    return source_id if isinstance(source_id, str) and source_id else None
+
+
+def _wasm_public_invoice_source_tables(config: dict[str, Any]) -> list[str]:
+    permissions = config.get("permissions") or []
+    for permission in permissions:
+        if not isinstance(permission, dict):
+            continue
+        if permission.get("id") != "wallet.create_invoice_public":
+            continue
+        policies = permission.get("policies")
+        if not isinstance(policies, list):
+            return []
+        return [
+            source_policy["table"]
+            for source_policy in policies
+            if isinstance(source_policy, dict)
+            and isinstance(source_policy.get("table"), str)
+            and source_policy["table"]
+        ]
+    return []
+
+
+def _wasm_invoice_paid_export(config: dict[str, Any]) -> str | None:
+    events = config.get("events") or {}
+    export_name = events.get("onInvoicePaid")
+    return export_name if isinstance(export_name, str) and export_name else None
+
+
+def _is_wasm_event_export(extension: Any, export_name: str) -> bool:
+    for export in extension.exports:
+        if export.get("name") == export_name:
+            return export.get("visibility") == "event"
+    return False
+
+
+def _wasm_invoice_paid_payload(payment: Any) -> dict[str, Any]:
+    return {
+        "checkingId": payment.checking_id,
+        "paymentHash": payment.payment_hash,
+        "walletId": payment.wallet_id,
+        "amount": payment.amount,
+        "fee": payment.fee,
+        "bolt11": payment.bolt11,
+        "memo": payment.memo,
+        "pending": payment.pending,
+        "status": payment.status,
+        "tag": payment.tag,
+        "extension": payment.extension,
+        "extra": payment.extra or {},
+        "payment": json.loads(payment.json()),
+    }

lnbits/core/wasm_ext/wasm/host.py

@@ -0,0 +1,94 @@
+from __future__ import annotations
+
+import asyncio
+import re
+from collections.abc import Mapping
+from typing import Any
+
+from wasmtime import component
+
+from ..api.models import EmptyRequest
+from ..api.registry import list_extension_api_methods
+from ..api.runtime import ExtensionAPIHost
+
+
+def add_extension_host_imports(
+    linker: Any,
+    api_host: ExtensionAPIHost,
+    event_loop: asyncio.AbstractEventLoop,
+) -> None:
+    with linker.root() as root:
+        methods_by_interface: dict[str, list[Any]] = {}
+        for method in list_extension_api_methods():
+            methods_by_interface.setdefault(method.host_interface, []).append(method)
+
+        for host_interface, methods in methods_by_interface.items():
+            with root.add_instance(f"lnbits:extension/{host_interface}") as host:
+                for method in methods:
+                    host.add_func(
+                        method.host_name.replace("_", "-"),
+                        _make_host_import(
+                            api_host,
+                            method.method_id,
+                            method.request_model is EmptyRequest,
+                            event_loop,
+                        ),
+                    )
+
+
+def _make_host_import(
+    api_host: ExtensionAPIHost,
+    host_name: str,
+    empty_request: bool,
+    event_loop: asyncio.AbstractEventLoop,
+) -> Any:
+    if empty_request:
+
+        def empty_host_import(_store: Any) -> Any:
+            future = asyncio.run_coroutine_threadsafe(
+                api_host.invoke(host_name), event_loop
+            )
+            response = future.result()
+            return _dict_to_component_record(response)
+
+        return empty_host_import
+
+    def host_import(_store: Any, request: Any = None) -> Any:
+        payload = _component_payload_to_dict(request)
+        future = asyncio.run_coroutine_threadsafe(
+            api_host.invoke(host_name, payload), event_loop
+        )
+        response = future.result()
+        return _dict_to_component_record(response)
+
+    return host_import
+
+
+def _component_payload_to_dict(value: Any) -> dict[str, Any]:
+    if value is None:
+        return {}
+    if hasattr(value, "__dict__"):
+        return dict(value.__dict__)
+    if isinstance(value, Mapping):
+        return dict(value)
+    raise TypeError("WASM host function payload must be a record.")
+
+
+def _dict_to_component_record(value: Mapping[str, Any]) -> Any:
+
+    record = component.Record()
+    for key, item in value.items():
+        setattr(record, _camel_to_kebab(key), _to_component_value(item))
+    return record
+
+
+def _to_component_value(value: Any) -> Any:
+    if isinstance(value, Mapping):
+        return _dict_to_component_record(value)
+    if isinstance(value, list):
+        return [_to_component_value(item) for item in value]
+    return value
+
+
+def _camel_to_kebab(value: str) -> str:
+    return re.sub(r"([a-z0-9])([A-Z])", r"\1-\2", value).replace("_", "-").lower()

lnbits/core/wasm_ext/wasm/invoke.py

@@ -0,0 +1,120 @@
+from __future__ import annotations
+
+import asyncio
+import json
+from collections.abc import Mapping
+from typing import Any
+
+from wasmtime import Store, WasiConfig, component
+
+from lnbits.core.crud.extensions import get_installed_extension
+from lnbits.core.db import core_app_extra
+
+from ..api.host import ExtensionHostAPI
+from ..api.runtime import ExtensionAPIHost
+from .component import _wasm_component, _wasm_engine
+from .host import add_extension_host_imports
+from .loader import WasmExtension
+
+
+async def invoke_wasm_extension_export(
+    ext_id: str,
+    export_name: str,
+    payload: Mapping[str, Any] | None = None,
+    *,
+    user: Any | None = None,
+    access_token: str | None = None,
+    context: str = "user",
+    owner_id: str | None = None,
+) -> dict[str, Any]:
+    extension = _get_registered_extension(ext_id)
+    permissions = await _extension_permissions(extension)
+    api = ExtensionHostAPI(
+        extension.id,
+        permissions,
+        user_id=_user_id(user),
+        access_token=access_token,
+        context=context,
+        owner_id=owner_id,
+    )
+    event_loop = asyncio.get_running_loop()
+
+    return await asyncio.to_thread(
+        _invoke_wasm_extension_export_sync,
+        extension,
+        export_name,
+        payload or {},
+        api,
+        event_loop,
+    )
+
+
+def _invoke_wasm_extension_export_sync(
+    extension: WasmExtension,
+    export_name: str,
+    payload: Mapping[str, Any],
+    api: ExtensionHostAPI,
+    event_loop: asyncio.AbstractEventLoop,
+) -> dict[str, Any]:
+
+    engine = _wasm_engine()
+    store = Store(engine)
+    store.set_wasi(WasiConfig())
+
+    linker = component.Linker(engine)
+    linker.add_wasip2()
+    add_extension_host_imports(linker, ExtensionAPIHost(api), event_loop)
+
+    wasm_component = _wasm_component(extension)
+    instance = linker.instantiate(store, wasm_component)
+    function = instance.get_func(store, export_name)
+    if not function:
+        raise KeyError(
+            f"WASM extension '{extension.id}' has no export '{export_name}'."
+        )
+
+    result = function(store, json.dumps(payload))
+    function.post_return(store)
+    return _parse_wasm_export_result(extension, result)
+
+
+def _parse_wasm_export_result(extension: WasmExtension, value: Any) -> dict[str, Any]:
+    if isinstance(value, bytes):
+        value = value.decode()
+    if not isinstance(value, str):
+        return {"ok": True, "data": value}
+
+    max_response_bytes = (
+        (extension.config.get("wasm") or {})
+        .get("resource_limits", {})
+        .get("max_response_bytes")
+    )
+    if isinstance(max_response_bytes, int):
+        response_size = len(value.encode())
+        if response_size > max_response_bytes:
+            raise ValueError(
+                f"WASM extension response is too large: {response_size} bytes."
+            )
+
+    parsed = json.loads(value)
+    if isinstance(parsed, dict):
+        return parsed
+    return {"ok": True, "data": parsed}
+
+
+def _get_registered_extension(ext_id: str) -> WasmExtension:
+    extension = core_app_extra.wasm_extension_registry.get(ext_id)
+    if extension:
+        return extension
+    raise RuntimeError(f"WASM extension '{ext_id}' is not registered.")
+
+
+async def _extension_permissions(extension: WasmExtension) -> list[Any]:
+    installed_extension = await get_installed_extension(extension.id)
+    if not installed_extension:
+        return []
+    return installed_extension.permissions
+
+
+def _user_id(user: Any | None) -> str | None:
+    return getattr(user, "id", None) if user else None

lnbits/core/wasm_ext/wasm/loader.py

@@ -0,0 +1,100 @@
+from __future__ import annotations
+
+import json
+from dataclasses import dataclass
+from pathlib import Path
+from typing import Any
+
+from lnbits.settings import settings
+
+
+@dataclass(frozen=True)
+class WasmExtension:
+    id: str
+    name: str
+    version: str
+    root_path: Path
+    module_path: Path
+    wit_path: Path | None
+    world: str
+    host_api: str
+    exports: list[dict[str, Any]]
+    config: dict[str, Any]
+
+
+def is_wasm_extension_id(ext_id: str) -> bool:
+    config = load_wasm_extension_config(ext_id)
+    return bool(config and config.get("extension_type") == "wasm")
+
+
+def is_wasm_extension_dir(ext_dir: Path) -> bool:
+    config = _load_json(ext_dir / "config.json")
+    return bool(config and config.get("extension_type") == "wasm")
+
+
+def load_wasm_extension_config(ext_id: str) -> dict[str, Any] | None:
+    ext_dir = Path(settings.lnbits_extensions_path, "extensions", ext_id)
+    return _load_json(ext_dir / "config.json")
+
+
+def load_wasm_extension(ext_id: str) -> WasmExtension:
+    ext_dir = Path(settings.lnbits_extensions_path, "extensions", ext_id)
+    config = load_wasm_extension_config(ext_id)
+    if not config:
+        raise FileNotFoundError(f"Missing WASM extension config for '{ext_id}'.")
+    if config.get("extension_type") != "wasm":
+        raise ValueError(f"Extension '{ext_id}' is not a WASM extension.")
+
+    wasm_config = config.get("wasm") or {}
+    module_path = _extension_path(ext_dir, wasm_config.get("module"))
+    wit_path = _optional_extension_path(ext_dir, wasm_config.get("wit"))
+    _check_wasm_module(module_path)
+    if wit_path and not wit_path.is_file():
+        raise FileNotFoundError(f"WIT file not found: {wit_path}")
+
+    return WasmExtension(
+        id=config.get("id") or ext_id,
+        name=config.get("name") or ext_id,
+        version=config.get("version") or "0.0",
+        root_path=ext_dir,
+        module_path=module_path,
+        wit_path=wit_path,
+        world=wasm_config.get("world") or "",
+        host_api=wasm_config.get("host_api") or "lnbits.core.wasm_ext.ExtensionHostAPI",
+        exports=wasm_config.get("exports") or [],
+        config=config,
+    )
+
+
+def _load_json(path: Path) -> dict[str, Any] | None:
+    if not path.is_file():
+        return None
+    with path.open("r", encoding="utf-8") as config_file:
+        value = json.load(config_file)
+    if not isinstance(value, dict):
+        raise ValueError(f"Expected JSON object in '{path}'.")
+    return value
+
+
+def _extension_path(ext_dir: Path, value: Any) -> Path:
+    if not isinstance(value, str) or not value:
+        raise ValueError(f"Missing relative path for extension '{ext_dir.name}'.")
+    path = (ext_dir / value).resolve()
+    if ext_dir.resolve() not in path.parents:
+        raise ValueError(f"Extension path escapes extension root: {value}")
+    return path
+
+
+def _optional_extension_path(ext_dir: Path, value: Any) -> Path | None:
+    if value is None:
+        return None
+    return _extension_path(ext_dir, value)
+
+
+def _check_wasm_module(path: Path) -> None:
+    if not path.is_file():
+        raise FileNotFoundError(f"WASM module not found: {path}")
+    with path.open("rb") as wasm_file:
+        magic = wasm_file.read(4)
+    if magic != b"\0asm":
+        raise ValueError(f"Invalid WASM module: {path}")

lnbits/decorators.py

@@ -448,7 +448,7 @@ async def _check_user_access(r: Request, user_id: str, conn: Connection | None =
 async def _check_user_extension_access(
     user_id: str, path: str, conn: Connection | None = None
 ):
-    ext_id = path_segments(path)[0]
+    ext_id = _extension_id_from_request_path(path)
     status = await check_user_extension_access(user_id, ext_id, conn=conn)
     if not status.success:
         raise HTTPException(
@@ -457,6 +457,15 @@ async def _check_user_extension_access(
         )
 
 
+def _extension_id_from_request_path(path: str) -> str:
+    segments = path_segments(path)
+    if len(segments) >= 2 and segments[0] == "ext":
+        return segments[1]
+    if len(segments) >= 4 and segments[:3] == ["api", "v1", "ext"]:
+        return segments[3]
+    return segments[0]
+
+
 async def _get_account_from_token(
     access_token: str, path: str, method: str, conn: Connection | None = None
 ) -> Account | None:

lnbits/fiat/base.py

@@ -131,15 +131,15 @@ class FiatSubscriptionResponse(BaseModel):
 
 
 class FiatPaymentSuccessStatus(FiatPaymentStatus):
-    paid = True
+    paid = True  # type: ignore[reportIncompatibleVariableOverride]
 
 
 class FiatPaymentFailedStatus(FiatPaymentStatus):
-    paid = False
+    paid = False  # type: ignore[reportIncompatibleVariableOverride]
 
 
 class FiatPaymentPendingStatus(FiatPaymentStatus):
-    paid = None
+    paid = None  # type: ignore[reportIncompatibleVariableOverride]
 
 
 class FiatProvider(ABC):

lnbits/fiat/revolut.py

@@ -283,7 +283,7 @@ class RevolutWallet(FiatProvider):
             return FiatSubscriptionResponse(
                 ok=True,
                 checkout_session_url=checkout_url,
-                subscription_request_id=payment_options.subscription_request_id,
+                subscription_request_id=revolut_subscription_id,
             )
         except json.JSONDecodeError:
             return FiatSubscriptionResponse(
@@ -302,6 +302,15 @@ class RevolutWallet(FiatProvider):
         **kwargs,
     ) -> FiatSubscriptionResponse:
         try:
+            subscription = await self.get_subscription(subscription_id)
+            reference = self.deserialize_subscription_reference(
+                subscription.get("external_reference")
+            )
+            if not reference or reference.wallet_id != correlation_id:
+                return FiatSubscriptionResponse(
+                    ok=False, error_message="Subscription not found."
+                )
+
             r = await self.client.post(
                 f"/api/subscriptions/{subscription_id}/cancel",
                 timeout=REVOLUT_REQUEST_TIMEOUT,

lnbits/llms_txt.py

@@ -0,0 +1,78 @@
+"""Generate llms.txt markdown from FastAPI OpenAPI schema for AI agents."""
+
+from typing import Any
+
+from fastapi import FastAPI
+from fastapi.responses import PlainTextResponse
+
+
+def generate_llms_txt(app: FastAPI) -> str:
+    """Convert an OpenAPI schema to llms.txt markdown format."""
+    openapi_schema = app.openapi()
+    lines: list[str] = []
+
+    # H1: API Title
+    info = openapi_schema.get("info", {})
+    title = info.get("title", "API")
+    lines.append(f"# {title}")
+    lines.append("")
+
+    # Blockquote: Description
+    description = info.get("description")
+    if description:
+        for line in description.strip().split("\n"):
+            lines.append(f"> {line}")
+        lines.append("")
+
+    # Group endpoints by tag
+    paths = openapi_schema.get("paths", {})
+    endpoints_by_tag: dict[str, list[dict[str, Any]]] = {}
+
+    for path, path_item in paths.items():
+        for method in ["get", "post", "put", "patch", "delete", "head", "options"]:
+            if method not in path_item:
+                continue
+            operation = path_item[method]
+            tags = operation.get("tags", ["Endpoints"])
+            tag = tags[0] if tags else "Endpoints"
+            if tag not in endpoints_by_tag:
+                endpoints_by_tag[tag] = []
+            endpoints_by_tag[tag].append(
+                {
+                    "path": path,
+                    "method": method.upper(),
+                    "operation": operation,
+                }
+            )
+
+    # Generate sections by tag
+    for tag, endpoints in endpoints_by_tag.items():
+        lines.append(f"## {tag}")
+        lines.append("")
+        for endpoint in endpoints:
+            method = endpoint["method"]
+            path = endpoint["path"]
+            operation = endpoint["operation"]
+            summary = operation.get("summary", "")
+            if summary:
+                lines.append(f"### `{method} {path}` - {summary}")
+            else:
+                lines.append(f"### `{method} {path}`")
+            lines.append("")
+        lines.append("")
+
+    return "\n".join(lines).strip() + "\n"
+
+
+def create_llms_txt_route(app: FastAPI) -> None:
+    """Add a /llms.txt endpoint to the app."""
+
+    @app.get(
+        "/llms.txt",
+        response_class=PlainTextResponse,
+        include_in_schema=False,
+        summary="Get LLM-friendly API documentation",
+    )
+    async def get_llms_txt() -> str:
+        """Return the API documentation in llms.txt markdown format."""
+        return generate_llms_txt(app)

lnbits/settings.py

@@ -359,9 +359,11 @@ class FeeSettings(LNbitsSettings):
 
 
 class ExchangeProvidersSettings(LNbitsSettings):
-    lnbits_exchange_rate_cache_seconds: int = Field(default=30, ge=0)
+    lnbits_exchange_rate_cache_seconds: int = Field(default=60, ge=0)
     lnbits_exchange_history_size: int = Field(default=60, ge=0)
     lnbits_exchange_history_refresh_interval_seconds: int = Field(default=300, ge=0)
+    lnbits_price_aggregator_enabled: bool = Field(default=True)
+    lnbits_price_aggregator_url: str = Field(default="https://price.lnbits.com")
 
     lnbits_exchange_rate_providers: list[ExchangeRateProvider] = Field(
         default=[
@@ -587,6 +589,7 @@ class PhoenixdFundingSource(LNbitsSettings):
     phoenixd_api_password: str | None = Field(default=None)
     phoenixd_data_dir: str | None = Field(default=None)
     phoenixd_mnemonic: str | None = Field(default=None)
+    phoenixd_mnemonic_backup_confirmed: bool = Field(default=False)
 
 
 class AlbyFundingSource(LNbitsSettings):
@@ -611,6 +614,7 @@ class SparkL2FundingSource(LNbitsSettings):
     spark_l2_external_endpoint: str | None = Field(default="http://localhost:8765")
     spark_l2_external_api_key: str | None = Field(default=None)
     spark_l2_mnemonic: str | None = Field(default=None)
+    spark_l2_mnemonic_backup_confirmed: bool = Field(default=False)
     spark_l2_pay_wait_ms: int = Field(default=4000, ge=0)
     spark_l2_pay_poll_ms: int = Field(default=500, ge=0)
     spark_l2_stream_keepalive_ms: int = Field(default=15000, ge=0)
@@ -648,6 +652,7 @@ class BoltzFundingSource(LNbitsSettings):
     boltz_client_password: str = Field(default="")
     boltz_client_cert: str | None = Field(default=None)
     boltz_mnemonic: str | None = Field(default=None)
+    boltz_mnemonic_backup_confirmed: bool = Field(default=False)
 
 
 class StrikeFundingSource(LNbitsSettings):
@@ -1047,7 +1052,7 @@ class EditableSettings(
 
 
 class UpdateSettings(EditableSettings):
-    class Config:
+    class Config(EditableSettings.Config):
         extra = Extra.forbid
 
 
@@ -1072,11 +1077,12 @@ class EnvSettings(LNbitsSettings):
     log_rotation: str = Field(default="100 MB")
     log_retention: str = Field(default="3 months")
     first_install_token: str | None = Field(default=None)
-
     cleanup_wallets_days: int = Field(default=90, ge=0)
     funding_source_max_retries: int = Field(default=4, ge=0)
     lnbits_max_users: int = Field(default=0, ge=0)
     lnbits_max_extensions: int = Field(default=0, ge=0)
+    task_heart_beat_verbose: bool = Field(default=False)
+    task_heart_beat_interval: int = Field(default=30)
 
     @property
     def has_default_extension_path(self) -> bool:
@@ -1198,11 +1204,11 @@ class ReadOnlySettings(
 
 
 class Settings(EditableSettings, ReadOnlySettings, TransientSettings, BaseSettings):
-    class Config:
+    class Config(EditableSettings.Config, BaseSettings.Config):  # type: ignore[misc]
         env_file = ".env"
         env_file_encoding = "utf-8"
         case_sensitive = False
-        json_loads = list_parse_fallback
+        json_loads = list_parse_fallback  # type: ignore[assignment]
 
     def is_user_allowed(self, user_id: str) -> bool:
         return (

lnbits/static/css/base.css

@@ -212,12 +212,15 @@ body.bg-image .q-page-container {
   backdrop-filter: none; /* Ensure the page content is not affected */
 }
 
-body.body--dark .q-card:not(.q-dialog .q-card, .lnbits__dialog-card, .q-dialog-plugin--dark),
+body.body--dark .q-card:not(.q-dialog .q-card, .lnbits__dialog-card, .q-dialog-plugin--dark) {
+  --q-dark: rgba(29, 29, 29, 0.3);
+  background-color: var(--q-dark);
+}
 body.body--dark .q-header,
 body.body--dark .q-drawer {
   --q-dark: rgba(29, 29, 29, 0.3);
   background-color: var(--q-dark);
-  backdrop-filter: blur(6px) brightness(0.8);
+  backdrop-filter: brightness(0.8);
 }
 
 body.rounded-ui .q-card,
@@ -388,11 +391,11 @@ body[data-theme=salvador].card-gradient.body--dark .q-drawer {
 }
 
 body.card-shadow .q-card:not(.q-dialog .q-card, .lnbits__dialog-card, .q-dialog-plugin--dark) {
-  filter: drop-shadow(0 10px 24px rgba(0, 0, 0, 0.18));
+  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
 }
 
 body.card-shadow.body--dark .q-card:not(.q-dialog .q-card, .lnbits__dialog-card, .q-dialog-plugin--dark) {
-  filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.45));
+  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
 }
 
 body.no-burger-background .q-drawer {

lnbits/static/i18n/en.js

@@ -184,6 +184,7 @@ window.localisation.en = {
   release_notes: 'Release Notes',
   activate_extension_details: 'Make extension available/unavailable for users',
   featured: 'Featured',
+  categories: 'Categories',
   all: 'All',
   only_admins_can_install: '(Only admin accounts can install extensions)',
   only_admins_can_create_extensions:
@@ -518,6 +519,36 @@ window.localisation.en = {
   admin_settings: 'Admin Settings',
   extension_cost: 'This release requires a payment of minimum {cost} sats.',
   extension_paid_sats: 'You have already paid {paid_sats} sats.',
+  extension_permissions_title: 'Grant extension permissions',
+  extension_permissions_grant_install: 'Grant and install',
+  extension_permissions_high_risk_warning:
+    'This extension requests permissions that can move funds.',
+  extension_permission_risk_low: 'Low risk',
+  extension_permission_risk_medium: 'Medium risk',
+  extension_permission_risk_high: 'High risk',
+  extension_permission_warning_wallet_pay_invoice:
+    'Can spend funds from wallets available to your account.',
+  extension_permission_warning_extension_api_request_write:
+    'Can write data or trigger actions in approved extensions.',
+  extension_permission_ext_storage_read: 'Read extension storage',
+  extension_permission_ext_storage_read_public: 'Read public extension storage',
+  extension_permission_ext_storage_write: 'Write extension storage',
+  extension_permission_ext_storage_read_write: 'Read & Write extension storage',
+  extension_permission_extension_api_request: 'Use other extensions',
+  extension_permission_extension_api_request_extensions: 'Allowed extensions',
+  extension_permission_access_read: 'Read',
+  extension_permission_access_write: 'Write',
+  extension_permission_http_request: 'Connect to external websites',
+  extension_permission_http_request_hosts: 'Allowed hosts',
+  extension_permission_utils_basic: 'Use basic LNbits utilities',
+  extension_permission_ui_camera_scan_qr: 'Scan QR codes',
+  extension_permission_payments_watch: 'Watch payments',
+  extension_permission_wallet_create_invoice: 'Create invoices',
+  extension_permission_wallet_create_invoice_public:
+    'Create Lightning invoices from public pages',
+  extension_permission_wallet_balance_read: 'View wallet balances',
+  extension_permission_wallet_list: 'List wallets',
+  extension_permission_wallet_pay_invoice: 'Pay invoices',
   create_extension: 'Create Extension',
   release_details_error: 'Cannot get the release details.',
   pay_from_wallet: 'Pay from Wallet',

lnbits/static/js/components/admin/lnbits-admin-exchange-providers.js

@@ -62,12 +62,6 @@ window.app.component('lnbits-admin-exchange-providers', {
   mounted() {
     this.getExchangeRateHistory()
   },
-  created() {
-    const hash = window.location.hash.replace('#', '')
-    if (hash === 'exchange_providers') {
-      this.showExchangeProvidersTab(hash)
-    }
-  },
   methods: {
     getDefaultSetting(fieldName) {
       LNbits.api.getDefaultSetting(fieldName).then(response => {
@@ -127,18 +121,21 @@ window.app.component('lnbits-admin-exchange-providers', {
       this.exchangeData.showTickerConversion = true
     },
     initExchangeChart(data) {
+      if (this.exchangeRatesChart) {
+        this.exchangeRatesChart.destroy()
+        this.exchangeRatesChart = null
+      }
       const xValues = data.map(d =>
         this.utils.formatTimestamp(d.timestamp, 'HH:mm')
       )
-      const exchanges = [
-        ...this.formData.lnbits_exchange_rate_providers,
-        {name: 'LNbits'}
-      ]
+      const exchanges = this.formData.lnbits_price_aggregator_enabled
+        ? [{name: 'Aggregator'}]
+        : [...this.formData.lnbits_exchange_rate_providers, {name: 'LNbits'}]
       const datasets = exchanges.map(exchange => ({
         label: exchange.name,
         data: data.map(d => d.rates[exchange.name]),
         pointStyle: true,
-        borderWidth: exchange.name === 'LNbits' ? 4 : 1,
+        borderWidth: exchange.name === 'LNbits' ? 4 : 2,
         tension: 0.4
       }))
       this.exchangeRatesChart = new Chart(
@@ -148,7 +145,11 @@ window.app.component('lnbits-admin-exchange-providers', {
           options: {
             plugins: {
               legend: {
-                display: false
+                display: true
+              },
+              title: {
+                display: true,
+                text: 'Bitcoin Price History'
               }
             }
           },

lnbits/static/js/components/admin/lnbits-admin-funding-seed-backup.js

@@ -0,0 +1,151 @@
+window.app.component('lnbits-admin-funding-seed-backup', {
+  props: ['active', 'is-super-user', 'form-data', 'settings'],
+  template: '#lnbits-admin-funding-seed-backup',
+  data() {
+    return {
+      dialog: {
+        show: false,
+        step: 1,
+        seed: '',
+        visible: false,
+        challenge: [],
+        answers: {},
+        error: '',
+        confirmField: ''
+      }
+    }
+  },
+  watch: {
+    active(isActive) {
+      if (isActive) {
+        this.openIfRequired()
+      }
+    },
+    'formData.lnbits_backend_wallet_class'(walletClass, previousWalletClass) {
+      const source = this.seedBackupSource(walletClass)
+      if (previousWalletClass && source && this.formData[source.seedField]) {
+        this.formData[source.confirmField] = false
+      }
+      this.openIfRequired()
+    },
+    'formData.boltz_mnemonic'() {
+      this.formData.boltz_mnemonic_backup_confirmed =
+        this.formData.boltz_mnemonic === this.settings.boltz_mnemonic
+          ? this.settings.boltz_mnemonic_backup_confirmed
+          : false
+      this.openIfRequired()
+    },
+    'formData.phoenixd_mnemonic'() {
+      this.formData.phoenixd_mnemonic_backup_confirmed =
+        this.formData.phoenixd_mnemonic === this.settings.phoenixd_mnemonic
+          ? this.settings.phoenixd_mnemonic_backup_confirmed
+          : false
+      this.openIfRequired()
+    },
+    'formData.spark_l2_mnemonic'() {
+      this.formData.spark_l2_mnemonic_backup_confirmed =
+        this.formData.spark_l2_mnemonic === this.settings.spark_l2_mnemonic
+          ? this.settings.spark_l2_mnemonic_backup_confirmed
+          : false
+      this.openIfRequired()
+    }
+  },
+  computed: {
+    seedWords() {
+      return this.dialog.seed
+        .split(/\s+/)
+        .filter(Boolean)
+        .map((word, index) => ({index, word}))
+    }
+  },
+  created() {
+    this.openIfRequired()
+  },
+  methods: {
+    seedBackupSource(walletClass = this.formData.lnbits_backend_wallet_class) {
+      if (walletClass === 'BoltzWallet') {
+        return {
+          seedField: 'boltz_mnemonic',
+          confirmField: 'boltz_mnemonic_backup_confirmed'
+        }
+      }
+      if (walletClass === 'PhoenixdWallet') {
+        return {
+          seedField: 'phoenixd_mnemonic',
+          confirmField: 'phoenixd_mnemonic_backup_confirmed'
+        }
+      }
+      if (walletClass === 'SparkL2Wallet') {
+        return {
+          seedField: 'spark_l2_mnemonic',
+          confirmField: 'spark_l2_mnemonic_backup_confirmed'
+        }
+      }
+    },
+    openIfRequired() {
+      if (!this.active || !this.isSuperUser) return
+
+      const source = this.seedBackupSource()
+      if (!source) return
+
+      const seed = (this.formData[source.seedField] || '').trim()
+      const confirmed = this.formData[source.confirmField]
+      if (!seed || confirmed || this.dialog.show) return
+
+      this.dialog = {
+        show: true,
+        step: 1,
+        seed,
+        visible: false,
+        challenge: [],
+        answers: {},
+        error: '',
+        confirmField: source.confirmField
+      }
+    },
+    prepareChallenge() {
+      const words = this.dialog.seed.split(/\s+/).filter(Boolean)
+      const count = Math.min(4, words.length)
+      const indexes = _.shuffle([...Array(words.length).keys()]).slice(0, count)
+      this.dialog.challenge = indexes
+        .sort((a, b) => a - b)
+        .map(index => ({index, word: words[index]}))
+      this.dialog.answers = {}
+      this.dialog.error = ''
+      this.dialog.step = 2
+    },
+    submitChallenge() {
+      const isValid = this.dialog.challenge.every(({index, word}) => {
+        const answer = this.dialog.answers[index] || ''
+        return answer.trim().toLowerCase() === word.toLowerCase()
+      })
+      if (!isValid) {
+        this.dialog.error =
+          'One or more words are incorrect. Check your backup and try again.'
+        return
+      }
+
+      const field = this.dialog.confirmField
+      LNbits.api
+        .request(
+          'PATCH',
+          '/admin/api/v1/settings',
+          this.g.user.wallets[0].adminkey,
+          {
+            [field]: true
+          }
+        )
+        .then(() => {
+          this.formData[field] = true
+          this.settings[field] = true
+          this.dialog.show = false
+          Quasar.Notify.create({
+            type: 'positive',
+            message: 'Seed backup confirmed',
+            icon: 'check'
+          })
+        })
+        .catch(LNbits.utils.notifyApiError)
+    }
+  }
+})

lnbits/static/js/components/admin/lnbits-admin-funding.js

@@ -1,5 +1,5 @@
 window.app.component('lnbits-admin-funding', {
-  props: ['is-super-user', 'form-data', 'settings'],
+  props: ['active', 'is-super-user', 'form-data', 'settings'],
   template: '#lnbits-admin-funding',
   data() {
     return {

lnbits/static/js/components/lnbits-extension-permissions.js

@@ -0,0 +1,324 @@
+;(function () {
+  function translate(translateFn, key) {
+    return translateFn ? translateFn(key) : key
+  }
+
+  function permissionI18nKey(permission) {
+    return `extension_permission_${permission.id.replace(/[^A-Za-z0-9]/g, '_')}`
+  }
+
+  function permissionLabel(permission, translateFn) {
+    const key = permissionI18nKey(permission)
+    const label = translate(translateFn, key)
+    return label === key ? permission.id : label
+  }
+
+  function permissionManifestDescription(permission) {
+    return typeof permission.description === 'string'
+      ? permission.description
+      : ''
+  }
+
+  function lowRisk(translateFn) {
+    return {
+      level: 'low',
+      color: 'grey-6',
+      label: translate(translateFn, 'extension_permission_risk_low'),
+      warning: ''
+    }
+  }
+
+  function mediumRisk(translateFn) {
+    return {
+      level: 'medium',
+      color: 'warning',
+      label: translate(translateFn, 'extension_permission_risk_medium'),
+      warning: ''
+    }
+  }
+
+  function highRisk(translateFn, warningKey) {
+    return {
+      level: 'high',
+      color: 'negative',
+      label: translate(translateFn, 'extension_permission_risk_high'),
+      warning: translate(translateFn, warningKey)
+    }
+  }
+
+  function extensionDisplayName(extensions, extensionId) {
+    const extension = (extensions || []).find(
+      extension => extension.id === extensionId
+    )
+    return extension?.name || extensionId
+  }
+
+  function extensionApiPermissionTargets(permission, extensions) {
+    const extensionPolicies = permission.policies
+    if (!Array.isArray(extensionPolicies)) return []
+    return extensionPolicies
+      .map(extension => {
+        const extensionId =
+          typeof extension === 'string' ? extension : extension?.id
+        if (!extensionId) return null
+        const access =
+          typeof extension === 'string'
+            ? ['read']
+            : Array.isArray(extension.access) && extension.access.length
+              ? extension.access
+              : ['read']
+        return {
+          id: extensionId,
+          name: extensionDisplayName(extensions, extensionId),
+          access
+        }
+      })
+      .filter(Boolean)
+  }
+
+  function permissionRiskForPermission(permission, extensions, translateFn) {
+    if (permission.id === 'wallet.pay_invoice') {
+      return highRisk(
+        translateFn,
+        'extension_permission_warning_wallet_pay_invoice'
+      )
+    }
+    if (permission.id === 'extension.api.request') {
+      const hasWriteAccess = extensionApiPermissionTargets(
+        permission,
+        extensions
+      ).some(target => target.access.includes('write'))
+      return hasWriteAccess
+        ? highRisk(
+            translateFn,
+            'extension_permission_warning_extension_api_request_write'
+          )
+        : mediumRisk(translateFn)
+    }
+    if (permission.id === 'http.request') {
+      return mediumRisk(translateFn)
+    }
+    if (
+      [
+        'wallet.list',
+        'wallet.balance.read',
+        'wallet.create_invoice_public',
+        'ext.storage.read_public',
+        'payments.watch'
+      ].includes(permission.id)
+    ) {
+      return mediumRisk(translateFn)
+    }
+    return lowRisk(translateFn)
+  }
+
+  function permissionRisk(permissions, extensions, translateFn) {
+    const risks = permissions.map(permission =>
+      permissionRiskForPermission(permission, extensions, translateFn)
+    )
+    const highestRisk = risks.find(risk => risk.level === 'high')
+    if (highestRisk) return highestRisk
+    return risks.find(risk => risk.level === 'medium') || lowRisk(translateFn)
+  }
+
+  function permissionOrderIndex(permissionId) {
+    const order = [
+      'wallet.pay_invoice',
+      'wallet.list',
+      'wallet.balance.read',
+      'extension.api.request',
+      'http.request',
+      'ui.camera.scan_qr',
+      'ext.storage.read',
+      'ext.storage.write',
+      'ext.storage.read_public',
+      'wallet.create_invoice_public',
+      'wallet.create_invoice',
+      'utils.basic'
+    ]
+    const index = order.indexOf(permissionId)
+    return index === -1 ? order.length : index
+  }
+
+  function publicStorageFieldGroups(permission) {
+    const tables = permission.policies
+    if (!Array.isArray(tables)) return []
+    return tables
+      .map(table => {
+        const tableName =
+          typeof table === 'string' ? table : table?.table_name || ''
+        const fields =
+          typeof table === 'string' || !Array.isArray(table?.public_fields)
+            ? []
+            : table.public_fields.filter(
+                field => typeof field === 'string' && field
+              )
+        return tableName ? {table: tableName, fields} : null
+      })
+      .filter(Boolean)
+  }
+
+  function httpRequestPermissionHosts(permission) {
+    const hosts = permission.policies
+    if (!Array.isArray(hosts)) return []
+    return hosts
+      .map(host => (typeof host === 'string' ? host : host?.host || ''))
+      .filter(host => typeof host === 'string' && host)
+  }
+
+  function publicInvoicePolicies(permission) {
+    const policies = permission.policies
+    if (!Array.isArray(policies)) return []
+    return policies
+      .map(policy => {
+        if (!policy || typeof policy !== 'object') return null
+        const table = policy.table
+        const walletField = policy.wallet_field
+        if (typeof table !== 'string' || !table) return null
+        if (typeof walletField !== 'string' || !walletField) return null
+        return {table, walletField}
+      })
+      .filter(Boolean)
+  }
+
+  function permissionDisplayItem(permissions, extensions, translateFn) {
+    const permission = permissions[0]
+    const isReadWriteStorage =
+      permissions.length === 2 &&
+      permissions.some(permission => permission.id === 'ext.storage.read') &&
+      permissions.some(permission => permission.id === 'ext.storage.write')
+    const descriptions = permissions
+      .map(permission => permissionManifestDescription(permission))
+      .filter(Boolean)
+    const item = {
+      id: isReadWriteStorage ? 'ext.storage.read_write' : permission.id,
+      label: isReadWriteStorage
+        ? translate(translateFn, 'extension_permission_ext_storage_read_write')
+        : permissionLabel(permission, translateFn),
+      risk: permissionRisk(permissions, extensions, translateFn),
+      badges: [],
+      descriptions,
+      fieldGroups: [],
+      invoicePolicies: [],
+      extensionAccess: [],
+      httpHosts: []
+    }
+
+    if (permission.id === 'ext.storage.read_public') {
+      item.fieldGroups = publicStorageFieldGroups(permission)
+      item.badges = item.fieldGroups.map(group => ({
+        key: group.table,
+        label: group.table
+      }))
+    }
+
+    if (permission.id === 'extension.api.request') {
+      item.extensionAccess = extensionApiPermissionTargets(
+        permission,
+        extensions
+      )
+      item.badges = item.extensionAccess.map(target => ({
+        key: target.id,
+        label: target.name
+      }))
+    }
+
+    if (permission.id === 'http.request') {
+      item.httpHosts = httpRequestPermissionHosts(permission)
+    }
+
+    if (permission.id === 'wallet.create_invoice_public') {
+      item.invoicePolicies = publicInvoicePolicies(permission)
+    }
+
+    return item
+  }
+
+  function displayItems({permissions, extensions, translate}) {
+    const permissionList = permissions || []
+    const permissionsById = new Map(
+      permissionList.map(permission => [permission.id, permission])
+    )
+    const hasReadWriteStorage =
+      permissionsById.has('ext.storage.read') &&
+      permissionsById.has('ext.storage.write')
+    let addedReadWriteStorage = false
+
+    return permissionList
+      .map((permission, index) => {
+        if (
+          hasReadWriteStorage &&
+          ['ext.storage.read', 'ext.storage.write'].includes(permission.id)
+        ) {
+          if (addedReadWriteStorage) return null
+          addedReadWriteStorage = true
+          return {
+            index,
+            orderId: 'ext.storage.read',
+            permissions: [
+              permissionsById.get('ext.storage.read'),
+              permissionsById.get('ext.storage.write')
+            ]
+          }
+        }
+        return {
+          index,
+          orderId: permission.id,
+          permissions: [permission]
+        }
+      })
+      .filter(Boolean)
+      .sort((left, right) => {
+        const leftOrder = permissionOrderIndex(left.orderId)
+        const rightOrder = permissionOrderIndex(right.orderId)
+        return leftOrder === rightOrder
+          ? left.index - right.index
+          : leftOrder - rightOrder
+      })
+      .map(group =>
+        permissionDisplayItem(group.permissions, extensions || [], translate)
+      )
+  }
+
+  window.LNbitsExtensionPermissions = {
+    displayItems,
+    hasHighRisk({permissions, extensions, translate}) {
+      return displayItems({permissions, extensions, translate}).some(
+        permission => permission.risk.level === 'high'
+      )
+    }
+  }
+
+  window.app.component('lnbits-extension-permissions', {
+    template: '#lnbits-extension-permissions',
+    props: {
+      permissions: {
+        type: Array,
+        default: () => []
+      },
+      extensions: {
+        type: Array,
+        default: () => []
+      }
+    },
+    computed: {
+      displayItems() {
+        return window.LNbitsExtensionPermissions.displayItems({
+          permissions: this.permissions,
+          extensions: this.extensions,
+          translate: key => this.$t(key)
+        })
+      }
+    },
+    methods: {
+      publicInvoicePolicySentence(policy) {
+        return `Invoices will be created using ${policy.walletField} from ${policy.table}.`
+      },
+      permissionAccessLabel(access) {
+        const key = `extension_permission_access_${access}`
+        const label = this.$t(key)
+        return label === key ? access : label
+      }
+    }
+  })
+})()

lnbits/static/js/components/lnbits-manage-extension-list.js

@@ -35,6 +35,18 @@ window.app.component('lnbits-manage-extension-list', {
             .toLocaleLowerCase()
             .includes(this.searchTerm.toLocaleLowerCase())
         })
+    },
+    extensionUrl(extension) {
+      if (extension.is_wasm) {
+        return `/ext/${extension.code}`
+      }
+      return `/${extension.code}/`
+    },
+    extensionActive(extension) {
+      const extensionPath = extension.is_wasm
+        ? `/ext/${extension.code}`
+        : `/${extension.code}`
+      return this.$route.path.startsWith(extensionPath)
     }
   },
   async created() {

lnbits/static/js/components/lnbits-payment-list.js

@@ -360,18 +360,37 @@ window.app.component('lnbits-payment-list', {
     paymentTableRowKey(row) {
       return row.payment_hash + row.amount
     },
-    exportCSV(detailed = false) {
+    async exportCSV(detailed = false) {
       // status is important for export but it is not in paymentsTable
       // because it is manually added with payment detail link and icons
       // and would cause duplication in the list
       const pagination = this.paymentsTable.pagination
-      const query = {
-        sortby: pagination.sortBy ?? 'time',
-        direction: pagination.descending ? 'desc' : 'asc'
-      }
-      const params = new URLSearchParams(query)
-      LNbits.api.getPayments(this.wallet, params).then(response => {
-        let payments = response.data.data.map(this.mapPayment)
+      const maxPages = 100
+      const limit = 1000
+      let payments = []
+
+      this.paymentsCSV.loading = true
+      try {
+        for (let page = 0; page < maxPages; page++) {
+          const query = {
+            sortby: pagination.sortBy ?? 'time',
+            direction: pagination.descending ? 'desc' : 'asc',
+            limit,
+            offset: page * limit
+          }
+          const params = new URLSearchParams(query)
+          const response = await LNbits.api.getPayments(this.wallet, params)
+          const pagePayments = response.data.data || []
+          payments = payments.concat(pagePayments.map(this.mapPayment))
+
+          if (
+            pagePayments.length < limit ||
+            payments.length >= response.data.total
+          ) {
+            break
+          }
+        }
+
         let columns = this.paymentsCSV.columns
 
         if (detailed) {
@@ -400,7 +419,11 @@ window.app.component('lnbits-payment-list', {
           payments,
           this.wallet.name + '-payments'
         )
-      })
+      } catch (err) {
+        LNbits.utils.notifyApiError(err)
+      } finally {
+        this.paymentsCSV.loading = false
+      }
     },
     addFilterTag() {
       if (!this.exportTagName) return

lnbits/static/js/components/lnbits-qrcode-lnurl.js

@@ -8,6 +8,10 @@ window.app.component('lnbits-qrcode-lnurl', {
     prefix: {
       type: String,
       default: 'lnurlp'
+    },
+    href: {
+      type: String,
+      default: ''
     }
   },
   data() {
@@ -21,7 +25,10 @@ window.app.component('lnbits-qrcode-lnurl', {
       if (this.tab == 'bech32') {
         const bytes = new TextEncoder().encode(this.url)
         const bech32 = NostrTools.nip19.encodeBytes('lnurl', bytes)
-        this.lnurl = `lightning:${bech32.toUpperCase()}`
+        this.lnurl =
+          this.href && this.href.trim() !== ''
+            ? `${this.href}?lightning=${bech32.toUpperCase()}`
+            : `lightning:${bech32.toUpperCase()}`
       } else if (this.tab == 'lud17') {
         if (this.url.startsWith('http://')) {
           this.lnurl = this.url.replace('http://', this.prefix + '://')

lnbits/static/js/components/lnbits-qrcode.js

@@ -85,6 +85,9 @@ window.app.component('lnbits-qrcode', {
         event.preventDefault()
         event.stopPropagation()
         return false
+      } else if (this.href && this.href.startsWith('http')) {
+        window.open(this.href, '_blank')
+        event.preventDefault()
       }
     },
     async writeNfcTag() {

lnbits/static/js/init-app.js

@@ -27,6 +27,14 @@ const DynamicComponent = {
             name: r.name,
             component: async () => {
               await LNbits.utils.loadTemplate(r.template)
+              if (r.i18n) {
+                const locale =
+                  window.i18n?.global?.locale?.value ??
+                  window.i18n?.global?.locale ??
+                  window.g.locale ??
+                  'en'
+                await LNbits.utils.loadExtI18n(r.i18n, locale)
+              }
               await LNbits.utils.loadScript(r.component)
               return window[r.name]
             }
@@ -131,6 +139,16 @@ const routes = [
     name: 'PageError',
     component: PageError
   },
+  {
+    path: '/ext/:extId',
+    name: 'WasmExtensionRoot',
+    component: window.WasmExtensionComponent
+  },
+  {
+    path: '/ext/:extId/:pathMatch(.*)*',
+    name: 'WasmExtension',
+    component: window.WasmExtensionComponent
+  },
   {
     path: '/:pathMatch(.*)*',
     name: 'DynamicComponent',
@@ -151,6 +169,30 @@ window.i18n = new VueI18n.createI18n({
   fallbackLocale: 'en',
   messages: window.localisation
 })
+;(function () {
+  let _applying = false
+  let _target = null
+  Vue.watch(
+    () => window.i18n.global.locale,
+    async (locale, prevLocale) => {
+      if (_applying || !LNbits.utils._extI18nDirs.size) return
+      _target = locale
+      _applying = true
+      window.i18n.global.locale = prevLocale
+      _applying = false
+      await Promise.all(
+        [...LNbits.utils._extI18nDirs].map(dir =>
+          LNbits.utils.loadExtI18n(dir, locale)
+        )
+      )
+      if (_target !== locale) return
+      _applying = true
+      window.i18n.global.locale = locale
+      _applying = false
+    },
+    {flush: 'sync'}
+  )
+})()
 
 window.app.mixin({
   data() {

lnbits/static/js/pages/extensions.js

@@ -10,6 +10,7 @@ window.PageExtensions = {
       tab: 'installed',
       manageExtensionTab: 'releases',
       filteredExtensions: [],
+      categories: new Set(),
       updatableExtensions: [],
       showUninstallDialog: false,
       showManageExtensionDialog: false,
@@ -23,19 +24,16 @@ window.PageExtensions = {
       selectedExtensionDetails: null,
       selectedExtensionRepos: null,
       selectedRelease: null,
+      permissionGrant: {
+        show: false,
+        permissions: [],
+        resolve: null
+      },
       uninstallAndDropDb: false,
       maxStars: 5,
       paylinkWebsocket: null,
       searchToggle: false,
       reviewsUrl: null,
-      permissionsDialog: {
-        show: false,
-        extension: null,
-        checked: [],
-        missing: [],
-        tags: [],
-        tagOptions: []
-      },
       reviewsDialog: {
         show: false,
         extension: null,
@@ -100,20 +98,6 @@ window.PageExtensions = {
       this.filterExtensions(this.searchTerm, val)
     }
   },
-  computed: {
-    permissionsAllChecked() {
-      const ext = this.permissionsDialog.extension
-      if (!ext || !Array.isArray(ext.permissions)) return true
-      const required = ext.permissions.map(p => p.id)
-      return required.every(p => this.permissionsDialog.checked.includes(p))
-    },
-    permissionsHasMissingEndpoints() {
-      return (
-        this.permissionsDialog.missing &&
-        this.permissionsDialog.missing.length > 0
-      )
-    }
-  },
   methods: {
     filterExtensions(term, tab) {
       // Filter the extensions list
@@ -128,6 +112,10 @@ window.PageExtensions = {
         }
       }
 
+      const isCategoryTab = !['installed', 'all', 'featured'].includes(tab)
+      const isInSelectedCategory = extension =>
+        extension.categories?.includes(tab) ?? false
+
       this.filteredExtensions = this.extensions
         .filter(e => (tab === 'all' ? !e.isInstalled : true))
         .filter(e => (tab === 'installed' ? e.isInstalled : true))
@@ -135,6 +123,7 @@ window.PageExtensions = {
           tab === 'installed' ? (e.isActive ? true : !!this.g.user.admin) : true
         )
         .filter(e => (tab === 'featured' ? e.isFeatured : true))
+        .filter(e => (isCategoryTab ? isInSelectedCategory(e) : true))
         .filter(extensionNameContains(term))
         .map(e => ({
           ...e,
@@ -148,6 +137,12 @@ window.PageExtensions = {
       // the install logic has been triggered one way or another
       this.unsubscribeFromPaylinkWs()
 
+      const grantedPermissions =
+        await this.resolveExtensionPermissionGrant(release)
+      if (grantedPermissions === null) {
+        return
+      }
+
       this.selectedExtension.inProgress = true
       this.showManageExtensionDialog = false
       release.payment_hash =
@@ -159,7 +154,8 @@ window.PageExtensions = {
           archive: release.archive,
           source_repo: release.source_repo,
           payment_hash: release.payment_hash,
-          version: release.version
+          version: release.version,
+          permissions: grantedPermissions
         })
         .then(response => {
           this.selectedExtension.inProgress = false
@@ -168,6 +164,7 @@ window.PageExtensions = {
           )
           extension.isAvailable = true
           extension.isInstalled = true
+          extension.icon = response.data.icon || extension.icon
           extension.installedRelease = release
           this.toggleExtension(extension)
           extension.inProgress = false
@@ -262,81 +259,7 @@ window.PageExtensions = {
           extension.inProgress = false
         })
     },
-    async loadWasmCapabilities(extension) {
-      const {data} = await LNbits.api.request(
-        'GET',
-        `/wasm/api/v1/extensions/${extension.id}/capabilities`,
-        this.g.user.wallets[0].adminkey
-      )
-      const capabilities = data || {}
-      extension.permissions = capabilities.permissions || []
-      extension.paymentTags = capabilities.payment_tags || []
-      extension.grantedPermissions = capabilities.granted_permissions || []
-      extension.grantedPaymentTags = capabilities.granted_payment_tags || []
-      extension._grantedPermissions = extension.grantedPermissions.slice()
-      extension._grantedPaymentTags = extension.grantedPaymentTags.slice()
-      return capabilities
-    },
-    showWasmPermissionsDialog(extension, data = {}) {
-      this.permissionsDialog.extension = extension
-      this.permissionsDialog.checked = (
-        data.granted_permissions ||
-        extension._grantedPermissions ||
-        extension.grantedPermissions ||
-        []
-      ).slice()
-      this.permissionsDialog.missing = data.missing_permissions || []
-      this.permissionsDialog.tags = (
-        data.granted_payment_tags ||
-        extension._grantedPaymentTags ||
-        extension.grantedPaymentTags ||
-        []
-      ).slice()
-      this.permissionsDialog.tagOptions =
-        data.payment_tags || extension.paymentTags || []
-      this.permissionsDialog.show = true
-    },
-    async ensureWasmPermissionsReady(extension) {
-      if (extension.extensionType !== 'wasm') return true
-      const wasmHost = this.extensions.find(ext => ext.id === 'wasm')
-      if (!wasmHost || !wasmHost.isInstalled || !wasmHost.isActive) {
-        Quasar.Notify.create({
-          type: 'warning',
-          message:
-            'Enable the WASM! host extension before using this extension.'
-        })
-        return false
-      }
-      let data = {}
-      try {
-        data = await this.loadWasmCapabilities(extension)
-      } catch (err) {
-        LNbits.utils.notifyApiError(err)
-        return false
-      }
-      const required = (data.permissions || []).map(p => p.id).filter(Boolean)
-      const missing = required.filter(
-        permission => !extension.grantedPermissions.includes(permission)
-      )
-      const tags = data.payment_tags || []
-      const missingTags =
-        tags.length &&
-        !tags.some(tag => extension.grantedPaymentTags.includes(tag))
-      if (!missing.length && !missingTags) return true
-
-      Quasar.Notify.create({
-        type: 'warning',
-        message: 'Save WASM permissions before using this extension.'
-      })
-      this.showWasmPermissionsDialog(extension, data)
-      return false
-    },
-    async openExtension(extension) {
-      if (!(await this.ensureWasmPermissionsReady(extension))) return
-      window.location.href = `${extension.id}/`
-    },
     async enableExtensionForUser(extension) {
-      if (!(await this.ensureWasmPermissionsReady(extension))) return
       if (extension.isPaymentRequired) {
         this.showPayToEnable(extension)
         return
@@ -390,67 +313,6 @@ window.PageExtensions = {
       this.selectedExtension.payToEnable.showQRCode = false
       this.showPayToEnableDialog = true
     },
-    cancelPermissionsDialog() {
-      this.permissionsDialog.show = false
-      this.permissionsDialog.extension = null
-      this.permissionsDialog.checked = []
-      this.permissionsDialog.missing = []
-      this.permissionsDialog.tags = []
-      this.permissionsDialog.tagOptions = []
-    },
-    async openPermissionsForExtension(extension) {
-      if (extension.extensionType !== 'wasm') {
-        Quasar.Notify.create({
-          type: 'warning',
-          message: 'This extension does not use WASM permissions.'
-        })
-        return
-      }
-      try {
-        const data = await this.loadWasmCapabilities(extension)
-        this.showWasmPermissionsDialog(extension, data)
-      } catch (err) {
-        LNbits.utils.notifyApiError(err)
-      }
-    },
-    async confirmPermissionsDialog() {
-      const ext = this.permissionsDialog.extension
-      const granted = this.permissionsDialog.checked.slice()
-      const tags = this.permissionsDialog.tags.slice()
-      this.permissionsDialog.show = false
-      this.permissionsDialog.extension = null
-      this.permissionsDialog.checked = []
-      const missing = this.permissionsDialog.missing || []
-      this.permissionsDialog.missing = []
-      this.permissionsDialog.tags = []
-      this.permissionsDialog.tagOptions = []
-      if (missing.length) {
-        Quasar.Notify.create({
-          type: 'negative',
-          message: 'Missing API endpoints for one or more permissions.'
-        })
-        return
-      }
-      if (!ext) return
-      ext._grantedPermissions = granted
-      ext.grantedPermissions = granted
-      ext._grantedPaymentTags = tags
-      ext.grantedPaymentTags = tags
-      try {
-        await LNbits.api.request(
-          'PUT',
-          `/wasm/api/v1/extensions/${ext.id}/permissions`,
-          this.g.user.wallets[0].adminkey,
-          {permissions: granted, payment_tags: tags}
-        )
-        Quasar.Notify.create({
-          type: 'positive',
-          message: 'Permissions saved.'
-        })
-      } catch (err) {
-        LNbits.utils.notifyApiError(err)
-      }
-    },
     updatePayToInstallData(extension) {
       LNbits.api
         .request(
@@ -557,6 +419,10 @@ window.PageExtensions = {
     },
     async payAndInstall(release) {
       try {
+        if ((await this.resolveExtensionPermissionGrant(release)) === null) {
+          return
+        }
+
         this.selectedExtension.inProgress = true
         this.showManageExtensionDialog = false
         const paymentInfo = await this.requestPaymentForInstall(
@@ -602,6 +468,10 @@ window.PageExtensions = {
       }
     },
     async showInstallQRCode(release) {
+      if ((await this.resolveExtensionPermissionGrant(release)) === null) {
+        return
+      }
+
       this.selectedRelease = release
 
       try {
@@ -764,6 +634,9 @@ window.PageExtensions = {
 
       return ''
     },
+    extensionOpenUrl(extension) {
+      return extension.isWasm ? `/ext/${extension.id}` : `/${extension.id}`
+    },
     async getGitHubReleaseDetails(release) {
       if (!release.is_github_release || release.loaded) {
         return
@@ -779,6 +652,8 @@ window.PageExtensions = {
         release.is_version_compatible = data.is_version_compatible
         release.min_lnbits_version = data.min_lnbits_version
         release.warning = data.warning
+        release.extension_type = data.extension_type
+        release.permissions = data.permissions || []
       } catch (error) {
         console.warn(error)
         release.error = error
@@ -787,6 +662,75 @@ window.PageExtensions = {
         release.inProgress = false
       }
     },
+    async resolveExtensionPermissionGrant(release) {
+      const permissions = this.extensionPermissionsForRelease(release)
+      if (
+        !this.releaseRequiresPermissionGrant(release) ||
+        !permissions.length
+      ) {
+        return []
+      }
+      if (release.grantedPermissions) {
+        return release.grantedPermissions
+      }
+      const grantedPermissions =
+        await this.confirmExtensionPermissions(permissions)
+      if (!grantedPermissions) {
+        return null
+      }
+      release.grantedPermissions = grantedPermissions
+      return grantedPermissions
+    },
+    extensionPermissionsForRelease(release) {
+      return release.permissions || this.selectedExtension?.permissions || []
+    },
+    releaseRequiresPermissionGrant(release) {
+      return (
+        release.extension_type === 'wasm' ||
+        this.selectedExtension?.isWasm === true
+      )
+    },
+    confirmExtensionPermissions(permissions) {
+      return new Promise(resolve => {
+        this.selectedRelease = null
+        this.permissionGrant = {
+          show: true,
+          permissions,
+          resolve
+        }
+        this.showManageExtensionDialog = true
+      })
+    },
+    grantExtensionPermissions() {
+      this.resolveExtensionPermissionDialog(this.permissionGrant.permissions)
+    },
+    cancelExtensionPermissions() {
+      this.resolveExtensionPermissionDialog(null)
+    },
+    onManageExtensionDialogHide() {
+      if (this.permissionGrant.show) {
+        this.resolveExtensionPermissionDialog(null)
+      }
+    },
+    resolveExtensionPermissionDialog(grantedPermissions) {
+      const resolve = this.permissionGrant.resolve
+      this.permissionGrant = {
+        show: false,
+        permissions: [],
+        resolve: null
+      }
+      this.showManageExtensionDialog = false
+      if (resolve) {
+        resolve(grantedPermissions)
+      }
+    },
+    permissionGrantHasHighRisk() {
+      return window.LNbitsExtensionPermissions.hasHighRisk({
+        permissions: this.permissionGrant.permissions,
+        extensions: this.extensions,
+        translate: key => this.$t(key)
+      })
+    },
     async selectAllUpdatableExtensionss() {
       this.updatableExtensions.forEach(e => (e.selectedForUpdate = true))
     },
@@ -797,6 +741,13 @@ window.PageExtensions = {
           if (!ext.selectedForUpdate) {
             continue
           }
+          if (ext.isWasm) {
+            Quasar.Notify.create({
+              type: 'warning',
+              message: `Skipping ${ext.id}; this extension update requires permission approval.`
+            })
+            continue
+          }
           ext.inProgress = true
           await LNbits.api.request('POST', `/api/v1/extension`, null, {
             ext_id: ext.id,
@@ -989,6 +940,9 @@ window.PageExtensions = {
     async fetchAllExtensions() {
       try {
         const {data} = await LNbits.api.request('GET', `/api/v1/extension/all`)
+        data.forEach(ext => {
+          ext.categories?.forEach(category => this.categories.add(category))
+        })
         return data
       } catch (error) {
         console.warn(error)

lnbits/static/js/pages/wallet.js

@@ -223,6 +223,12 @@ window.PageWallet = {
           if (data.tag === 'payRequest') {
             this.parse.lnurlpay = Object.freeze(data)
             this.parse.data.amount = data.minSendable / 1000
+            this.receive.units = [
+              'sats',
+              ...(this.g.allowedCurrencies.length > 0
+                ? this.g.allowedCurrencies
+                : this.g.currencies)
+            ]
           } else if (data.tag === 'login') {
             this.parse.lnurlauth = Object.freeze(data)
           } else if (data.tag === 'withdrawRequest') {
@@ -408,12 +414,19 @@ window.PageWallet = {
             switch (action.tag) {
               case 'url':
                 Quasar.Notify.create({
-                  message: `<a target="_blank" style="color: inherit" href="${action.url}">${action.url}</a>`,
+                  message: action.url,
                   caption: action.description,
-                  html: true,
+                  html: false,
                   type: 'positive',
                   timeout: 0,
-                  closeBtn: true
+                  closeBtn: true,
+                  actions: [
+                    {
+                      label: 'Open link',
+                      color: 'white',
+                      handler: () => this.utils.openUrlInNewTab(action.url)
+                    }
+                  ]
                 })
                 break
               case 'message':
@@ -425,15 +438,29 @@ window.PageWallet = {
                 })
                 break
               case 'aes':
-                this.utils.decryptLnurlPayAES(action, response.data.preimage)
-                Quasar.Notify.create({
-                  message: value,
-                  caption: extra.success_action.description,
-                  html: true,
-                  type: 'positive',
-                  timeout: 0,
-                  closeBtn: true
-                })
+                this.utils
+                  .decryptLnurlPayAES(action, response.data.preimage)
+                  .then(value => {
+                    Quasar.Notify.create({
+                      message: value,
+                      caption: action.description,
+                      html: false,
+                      type: 'positive',
+                      timeout: 0,
+                      closeBtn: true
+                    })
+                  })
+                  .catch(error => {
+                    Quasar.Notify.create({
+                      message: action.description || 'Payment successful.',
+                      caption: 'Could not decrypt success action.',
+                      html: false,
+                      type: 'warning',
+                      timeout: 0,
+                      closeBtn: true
+                    })
+                  })
+                break
             }
           }
         })

lnbits/static/js/utils.js

@@ -323,6 +323,20 @@ window._lnbitsUtils = {
     converter.setOption('simpleLineBreaks', true)
     return converter.makeHtml(text)
   },
+  _extI18nDirs: new Set(),
+  _extI18nLoaded: {},
+  loadExtI18n(dir, locale) {
+    this._extI18nDirs.add(dir)
+    const loaded = (this._extI18nLoaded[dir] ??= {})
+    if (loaded[locale]) return loaded[locale]
+    loaded[locale] = this.loadScript(`${dir}/${locale}.js`).catch(() => {
+      if (locale !== 'en') {
+        loaded['en'] ??= this.loadScript(`${dir}/en.js`).catch(() => {})
+        return loaded['en']
+      }
+    })
+    return loaded[locale]
+  },
   async decryptLnurlPayAES(success_action, preimage) {
     let keyb = new Uint8Array(
       preimage.match(/[\da-f]{2}/gi).map(h => parseInt(h, 16))
@@ -351,5 +365,27 @@ window._lnbitsUtils = {
         let decoder = new TextDecoder('utf-8')
         return decoder.decode(valueb)
       })
+  },
+  validateBrowsableUrl(urlString, allowLoopback = false) {
+    const url = new URL(urlString)
+    if (url.protocol !== 'http:' && url.protocol !== 'https:') {
+      throw new Error('Invalid protocol')
+    }
+    if (!allowLoopback) {
+      const host = url.hostname
+      if (
+        host === 'localhost' ||
+        host === '[::1]' ||
+        host === '::1' ||
+        host.startsWith('127.') ||
+        host.startsWith('::ffff:127.')
+      ) {
+        throw new Error('Loopback addresses are not allowed')
+      }
+    }
+  },
+  openUrlInNewTab(urlString, allowLoopback = false) {
+    this.validateBrowsableUrl(urlString, allowLoopback)
+    window.open(urlString, '_blank', 'noopener,noreferrer')
   }
 }

lnbits/static/js/wasm-extension-component.js

@@ -0,0 +1,566 @@
+window.WasmExtensionComponent = {
+  template: `
+    <div class="wasm-extension-page relative-position">
+      <q-inner-loading :showing="loading && !frameUrl">
+        <q-spinner-dots size="40px"></q-spinner-dots>
+      </q-inner-loading>
+      <q-banner v-if="error" class="q-ma-md bg-negative text-white">
+        {{ error }}
+      </q-banner>
+      <iframe
+        v-else-if="frameUrl"
+        ref="frame"
+        :key="frameUrl"
+        class="wasm-extension-frame"
+        :src="frameUrl"
+        :title="extensionName || 'Extension'"
+        sandbox="allow-scripts"
+        allow="clipboard-write"
+        referrerpolicy="no-referrer"
+      ></iframe>
+      <q-dialog v-model="cameraPrompt.show" persistent>
+        <q-card style="width: min(520px, calc(100vw - 32px)); max-width: 520px">
+          <q-card-section>
+            <div class="text-h6">Camera access</div>
+          </q-card-section>
+          <q-card-section class="q-pt-none">
+            {{ cameraPrompt.extensionName }} wants to access the camera to scan a QR code.
+          </q-card-section>
+          <q-card-actions align="right">
+            <q-btn
+              flat
+              color="negative"
+              label="Deny"
+              @click="resolveCameraPrompt('deny')"
+            ></q-btn>
+            <q-btn
+              flat
+              color="primary"
+              label="Allow"
+              @click="resolveCameraPrompt('allow')"
+            ></q-btn>
+            <q-btn
+              unelevated
+              color="primary"
+              label="Allow and Remember"
+              @click="resolveCameraPrompt('allow_remember')"
+            ></q-btn>
+          </q-card-actions>
+        </q-card>
+      </q-dialog>
+    </div>
+  `,
+  data() {
+    return {
+      allowedPaymentHashes: new Set(),
+      bridge: {
+        apiRoutes: [],
+        extensionId: '',
+        permissions: [],
+        public: false,
+        query: {},
+        routeParams: {}
+      },
+      bridgePort: null,
+      cameraPrompt: {
+        extensionName: '',
+        reject: null,
+        resolve: null,
+        show: false
+      },
+      error: '',
+      extensionName: '',
+      frameUrl: '',
+      handleWindowMessage: null,
+      loading: false,
+      loadId: 0,
+      paymentSubscriptions: new Map()
+    }
+  },
+  created() {
+    this.handleWindowMessage = event => this.onWindowMessage(event)
+    window.addEventListener('message', this.handleWindowMessage)
+  },
+  unmounted() {
+    window.removeEventListener('message', this.handleWindowMessage)
+    this.rejectCameraPrompt('Camera scan cancelled.')
+    this.closeBridgePort()
+  },
+  watch: {
+    '$route.fullPath': {
+      immediate: true,
+      handler() {
+        this.loadFrameConfig()
+      }
+    }
+  },
+  methods: {
+    emptyBridge() {
+      return {
+        apiRoutes: [],
+        extensionId: '',
+        permissions: [],
+        public: false,
+        query: {},
+        routeParams: {}
+      }
+    },
+    plainBridgeContext() {
+      return {
+        extensionId: String(this.bridge.extensionId || ''),
+        public: Boolean(this.bridge.public),
+        routeParams: this.plainValue(this.bridge.routeParams || {}),
+        query: this.plainValue(this.bridge.query || {})
+      }
+    },
+    hasBridgePermission(permission) {
+      return (this.bridge.permissions || []).includes(permission)
+    },
+    cameraPromptStorageKey() {
+      return `lnbits.ext.permissions.${this.bridge.extensionId}.ui.camera.scan_qr`
+    },
+    emptyCameraPrompt() {
+      return {
+        extensionName: '',
+        reject: null,
+        resolve: null,
+        show: false
+      }
+    },
+    plainValue(value) {
+      try {
+        return JSON.parse(JSON.stringify(value))
+      } catch (_error) {
+        return {}
+      }
+    },
+    async loadFrameConfig() {
+      const extId = String(this.$route.params.extId || '')
+      const loadId = ++this.loadId
+      this.loading = true
+      this.error = ''
+      this.frameUrl = ''
+      this.bridge = this.emptyBridge()
+      this.allowedPaymentHashes.clear()
+      this.rejectCameraPrompt('Camera scan cancelled.')
+      this.closeBridgePort()
+
+      try {
+        const response = await fetch(
+          `/api/v1/ext/${encodeURIComponent(extId)}/_ui/frame`,
+          {
+            method: 'POST',
+            headers: {'content-type': 'application/json'},
+            credentials: 'same-origin',
+            body: JSON.stringify({
+              path: this.$route.path,
+              query: this.$route.query || {}
+            })
+          }
+        )
+        const text = await response.text()
+        let data = {}
+        if (text) {
+          try {
+            data = JSON.parse(text)
+          } catch (_error) {
+            data = {detail: text}
+          }
+        }
+        if (!response.ok) {
+          throw new Error(data?.detail || 'Failed to load extension page.')
+        }
+        if (loadId !== this.loadId) return
+
+        this.bridge = data.bridge || this.emptyBridge()
+        this.extensionName = data.extension?.name || extId
+        this.frameUrl = data.frameUrl
+      } catch (error) {
+        if (loadId !== this.loadId) return
+        console.error('[lnbits wasm extension] Failed to load frame.', error)
+        this.error = error instanceof Error ? error.message : String(error)
+      } finally {
+        if (loadId === this.loadId) {
+          this.loading = false
+        }
+      }
+    },
+    extensionFrameWindow() {
+      return this.$refs.frame?.contentWindow
+    },
+    sendResponse(reply, id, payload) {
+      reply({
+        type: 'lnbits-extension:response',
+        id,
+        ...payload
+      })
+    },
+    allowedApiRoute(method, path) {
+      let url
+      try {
+        url = new URL(path, window.location.origin)
+      } catch (_error) {
+        return false
+      }
+      if (url.origin !== window.location.origin) return false
+
+      method = String(method || 'GET').toUpperCase()
+      return (this.bridge.apiRoutes || []).some(route => {
+        return (
+          route.method === method &&
+          new RegExp(route.pattern).test(url.pathname)
+        )
+      })
+    },
+    async callApi(message) {
+      const method = String(message.method || 'GET').toUpperCase()
+      const path = String(message.path || '')
+      if (!this.allowedApiRoute(method, path)) {
+        throw new Error('Extension API route is not allowed.')
+      }
+
+      const options = {
+        method,
+        headers: {},
+        credentials: 'same-origin'
+      }
+      if (message.body !== undefined && message.body !== null) {
+        options.headers['content-type'] = 'application/json'
+        options.body = JSON.stringify(message.body)
+      }
+
+      const response = await fetch(path, options)
+      const text = await response.text()
+      let data = text
+      if (text) {
+        try {
+          data = JSON.parse(text)
+        } catch (_error) {
+          data = text
+        }
+      }
+      if (!response.ok) {
+        throw new Error(
+          typeof data === 'object' && data.detail ? data.detail : text
+        )
+      }
+      this.rememberPaymentHashes(data)
+      return data
+    },
+    notify(message) {
+      const level = ['positive', 'negative', 'warning', 'info'].includes(
+        message.level
+      )
+        ? message.level
+        : 'info'
+      if (window.Quasar?.Notify) {
+        window.Quasar.Notify.create({
+          color: level,
+          message: String(message.message || '')
+        })
+      }
+    },
+    async scanQrCode() {
+      if (!this.hasBridgePermission('ui.camera.scan_qr')) {
+        throw new Error('Extension is missing scanner permission.')
+      }
+      if (!this.g) {
+        throw new Error('LNbits scanner is not available.')
+      }
+      if (this.g.scanner) {
+        throw new Error('A scanner is already active.')
+      }
+      await this.requireCameraScanApproval()
+      if (this.g.scanner) {
+        throw new Error('A scanner is already active.')
+      }
+
+      return new Promise((resolve, reject) => {
+        let completed = false
+
+        const cleanup = () => {
+          window.clearTimeout(timeout)
+          window.clearInterval(cancelPoll)
+          if (this.g.scanner === onScan) {
+            this.g.scanner = null
+          }
+        }
+
+        const complete = callback => value => {
+          if (completed) return
+          completed = true
+          cleanup()
+          callback(value)
+        }
+
+        const onScan = value => {
+          complete(resolve)({value: String(value || '')})
+        }
+
+        const timeout = window.setTimeout(() => {
+          complete(reject)(new Error('QR scan timed out.'))
+        }, 120000)
+
+        const cancelPoll = window.setInterval(() => {
+          if (!completed && this.g.scanner !== onScan) {
+            complete(reject)(new Error('QR scan cancelled.'))
+          }
+        }, 250)
+
+        this.g.scanner = onScan
+      })
+    },
+    requireCameraScanApproval() {
+      if (this.isCameraScanRemembered()) return Promise.resolve()
+      if (this.cameraPrompt.show) {
+        return Promise.reject(
+          new Error('Camera access prompt is already open.')
+        )
+      }
+
+      return new Promise((resolve, reject) => {
+        this.cameraPrompt = {
+          extensionName:
+            this.extensionName || this.bridge.extensionId || 'This extension',
+          reject,
+          resolve,
+          show: true
+        }
+      })
+    },
+    isCameraScanRemembered() {
+      try {
+        return (
+          this.$q.localStorage.getItem(this.cameraPromptStorageKey()) ===
+          'allow'
+        )
+      } catch (_error) {
+        return false
+      }
+    },
+    rememberCameraScanApproval() {
+      try {
+        this.$q.localStorage.set(this.cameraPromptStorageKey(), 'allow')
+      } catch (_error) {}
+    },
+    resolveCameraPrompt(decision) {
+      const resolve = this.cameraPrompt.resolve
+      const reject = this.cameraPrompt.reject
+      this.cameraPrompt = this.emptyCameraPrompt()
+
+      if (decision === 'allow_remember') {
+        this.rememberCameraScanApproval()
+        resolve?.()
+        return
+      }
+      if (decision === 'allow') {
+        resolve?.()
+        return
+      }
+      reject?.(new Error('Camera scan denied by user.'))
+    },
+    rejectCameraPrompt(message) {
+      const reject = this.cameraPrompt.reject
+      this.cameraPrompt = this.emptyCameraPrompt()
+      reject?.(new Error(message))
+    },
+    rememberPaymentHashes(value) {
+      if (!value || typeof value !== 'object') return
+
+      if (Array.isArray(value)) {
+        value.forEach(item => this.rememberPaymentHashes(item))
+        return
+      }
+
+      for (const [key, item] of Object.entries(value)) {
+        if (
+          ['paymentHash', 'payment_hash'].includes(key) &&
+          this.isPaymentHash(item)
+        ) {
+          this.allowedPaymentHashes.add(item)
+        }
+        this.rememberPaymentHashes(item)
+      }
+    },
+    isPaymentHash(value) {
+      return typeof value === 'string' && /^[a-f0-9]{64}$/i.test(value)
+    },
+    websocketUrl(path) {
+      const url = new URL(window.location.href)
+      url.protocol = url.protocol === 'https:' ? 'wss:' : 'ws:'
+      url.pathname = path
+      url.search = ''
+      url.hash = ''
+      return url.toString()
+    },
+    sendBridgeEvent(message) {
+      if (!this.bridgePort) return
+      this.bridgePort.postMessage({
+        type: 'lnbits-extension:event',
+        ...message
+      })
+    },
+    closePaymentSubscription(subscriptionId) {
+      const subscription = this.paymentSubscriptions.get(subscriptionId)
+      if (!subscription) return
+      this.paymentSubscriptions.delete(subscriptionId)
+      try {
+        subscription.socket.close()
+      } catch (_error) {}
+    },
+    closePaymentSubscriptions() {
+      for (const subscriptionId of Array.from(
+        this.paymentSubscriptions.keys()
+      )) {
+        this.closePaymentSubscription(subscriptionId)
+      }
+    },
+    closeBridgePort() {
+      this.closePaymentSubscriptions()
+      this.bridgePort?.close()
+      this.bridgePort = null
+    },
+    subscribePayment(message) {
+      const subscriptionId = String(message.subscriptionId || '')
+      const paymentHash = String(message.paymentHash || '')
+
+      if (!subscriptionId || !this.isPaymentHash(paymentHash)) {
+        throw new Error('Invalid payment subscription.')
+      }
+      if (!this.allowedPaymentHashes.has(paymentHash)) {
+        throw new Error('Payment subscription is not allowed.')
+      }
+
+      this.closePaymentSubscription(subscriptionId)
+
+      const socket = new WebSocket(
+        this.websocketUrl(`/api/v1/ws/${encodeURIComponent(paymentHash)}`)
+      )
+      this.paymentSubscriptions.set(subscriptionId, {paymentHash, socket})
+
+      socket.addEventListener('message', event => {
+        let data = event.data
+        try {
+          data = JSON.parse(event.data)
+        } catch (_error) {}
+
+        this.sendBridgeEvent({
+          event: 'payment.update',
+          subscriptionId,
+          paymentHash,
+          data
+        })
+
+        if (
+          data &&
+          typeof data === 'object' &&
+          (data.pending === false ||
+            ['success', 'settled', 'paid'].includes(String(data.status || '')))
+        ) {
+          this.sendBridgeEvent({
+            event: 'payment.settled',
+            subscriptionId,
+            paymentHash,
+            data
+          })
+          this.closePaymentSubscription(subscriptionId)
+        }
+      })
+      socket.addEventListener('error', () => {
+        this.sendBridgeEvent({
+          event: 'payment.error',
+          subscriptionId,
+          paymentHash
+        })
+        this.closePaymentSubscription(subscriptionId)
+      })
+      socket.addEventListener('close', () => {
+        this.paymentSubscriptions.delete(subscriptionId)
+      })
+    },
+    async handleBridgeRequest(message, reply) {
+      if (!message || message.type !== 'lnbits-extension:request') return
+
+      try {
+        if (message.action === 'context') {
+          this.sendResponse(reply, message.id, {
+            ok: true,
+            data: this.plainBridgeContext()
+          })
+          return
+        }
+
+        if (message.action === 'api') {
+          this.sendResponse(reply, message.id, {
+            ok: true,
+            data: await this.callApi(message)
+          })
+          return
+        }
+
+        if (message.action === 'ui.notify') {
+          this.notify(message)
+          this.sendResponse(reply, message.id, {
+            ok: true,
+            data: {ok: true}
+          })
+          return
+        }
+
+        if (message.action === 'ui.scan_qr') {
+          this.sendResponse(reply, message.id, {
+            ok: true,
+            data: await this.scanQrCode()
+          })
+          return
+        }
+
+        if (message.action === 'payment.subscribe') {
+          this.subscribePayment(message)
+          this.sendResponse(reply, message.id, {
+            ok: true,
+            data: {ok: true}
+          })
+          return
+        }
+
+        if (message.action === 'payment.unsubscribe') {
+          this.closePaymentSubscription(String(message.subscriptionId || ''))
+          this.sendResponse(reply, message.id, {
+            ok: true,
+            data: {ok: true}
+          })
+          return
+        }
+
+        throw new Error('Unknown extension bridge action.')
+      } catch (error) {
+        this.sendResponse(reply, message.id, {
+          ok: false,
+          error: error instanceof Error ? error.message : String(error)
+        })
+      }
+    },
+    onWindowMessage(event) {
+      if (event.source !== this.extensionFrameWindow()) return
+      const message = event.data
+      if (!message || message.type !== 'lnbits-extension:connect') return
+
+      const port = event.ports?.[0]
+      if (!port) return
+
+      this.closeBridgePort()
+      this.bridgePort = port
+      this.bridgePort.addEventListener('message', portEvent => {
+        this.handleBridgeRequest(portEvent.data, response => {
+          port.postMessage(response)
+        })
+      })
+      this.bridgePort.start()
+      this.bridgePort.postMessage({
+        type: 'lnbits-extension:connected',
+        id: message.id
+      })
+    }
+  }
+}

lnbits/static/scss/background.scss

@@ -58,11 +58,15 @@ body.bg-image {
 }
 // transparent background for specific elements
 body.body--dark {
-  .q-card:not(.q-dialog .q-card, .lnbits__dialog-card, .q-dialog-plugin--dark),
+  .q-card:not(.q-dialog .q-card, .lnbits__dialog-card, .q-dialog-plugin--dark) {
+    --q-dark: #{color.adjust(#1d1d1d, $alpha: -0.7)};
+    background-color: var(--q-dark);
+  }
+
   .q-header,
   .q-drawer {
     --q-dark: #{color.adjust(#1d1d1d, $alpha: -0.7)};
     background-color: var(--q-dark);
-    backdrop-filter: blur(6px) brightness(0.8);
+    backdrop-filter: brightness(0.8);
   }
 }

lnbits/static/scss/cards.scss

@@ -61,13 +61,13 @@ body.rounded-ui {
 
 body.card-shadow {
   .q-card:not(.q-dialog .q-card, .lnbits__dialog-card, .q-dialog-plugin--dark) {
-    filter: drop-shadow(0 10px 24px rgba(0, 0, 0, 0.18));
+    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
   }
 }
 
 body.card-shadow.body--dark {
   .q-card:not(.q-dialog .q-card, .lnbits__dialog-card, .q-dialog-plugin--dark) {
-    filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.45));
+    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
   }
 }
 

lnbits/static/vendor.json

@@ -58,6 +58,7 @@
     "js/pages/users.js",
     "js/pages/account.js",
     "js/pages/admin.js",
+    "js/components/admin/lnbits-admin-funding-seed-backup.js",
     "js/components/admin/lnbits-admin-funding.js",
     "js/components/admin/lnbits-admin-funding-sources.js",
     "js/components/admin/lnbits-admin-fiat-providers.js",
@@ -89,6 +90,7 @@
     "js/components/lnbits-theme.js",
     "js/components/lnbits-qrcode-scanner.js",
     "js/components/lnbits-manage-extension-list.js",
+    "js/components/lnbits-extension-permissions.js",
     "js/components/lnbits-manage-wallet-list.js",
     "js/components/lnbits-language-dropdown.js",
     "js/components/lnbits-payment-list.js",
@@ -96,6 +98,7 @@
     "js/components/extension-settings.js",
     "js/components/data-fields.js",
     "js/components.js",
+    "js/wasm-extension-component.js",
     "js/init-app.js"
   ],
   "css": ["vendor/quasar.css", "css/base.css"]

lnbits/task_manager.py

@@ -0,0 +1,200 @@
+import asyncio
+import traceback
+import uuid
+from collections.abc import Callable, Coroutine
+from datetime import datetime, timezone
+
+from loguru import logger
+from pydantic import BaseModel
+
+from lnbits.core.models import Payment
+from lnbits.settings import settings
+
+
+class PublicTask(BaseModel):
+    """Public model used to expose task information via the API."""
+
+    name: str
+    created_at: datetime
+
+
+class Task:
+    """Model used on the backend to keep track of background tasks."""
+
+    coro: Coroutine
+    name: str
+    created_at: datetime
+    task: asyncio.Task
+    invoice_queue: asyncio.Queue[Payment] | None = None
+
+    def __init__(
+        self,
+        coro: Coroutine,
+        name: str | None = None,
+        invoice_queue: asyncio.Queue | None = None,
+    ) -> None:
+        self.coro = coro
+        self.name = name or f"task_{uuid.uuid4()}"
+        self.created_at = datetime.now(timezone.utc)
+        self.task = asyncio.create_task(self.coro, name=self.name)
+        self.invoice_queue = invoice_queue
+
+
+class TaskManager:
+    """Singleton class to manage background tasks."""
+
+    tasks: list[Task] = []
+    invoice_queue: asyncio.Queue[Payment] = asyncio.Queue()
+    internal_invoice_queue: asyncio.Queue[Payment] = asyncio.Queue()
+
+    def init(self) -> None:
+        self.create_permanent_task(
+            func=self._heart_beat,
+            interval=settings.task_heart_beat_interval,
+        )
+        self.create_permanent_task(self._invoice_listener_consumer)
+        self.create_permanent_task(self._internal_invoice_listener_consumer)
+
+    def get_task(self, name: str) -> Task | None:
+        """Get a running task by name."""
+        for task in self.tasks:
+            if task.name == name:
+                return task
+        return None
+
+    def get_public_tasks(self) -> list[PublicTask]:
+        """Get a list of public tasks."""
+        return [PublicTask(name=t.name, created_at=t.created_at) for t in self.tasks]
+
+    def cancel_task(self, task: Task) -> None:
+        """Cancel a running task."""
+        self.tasks.remove(task)
+        try:
+            task.task.cancel()
+        except Exception as exc:
+            logger.warning(f"error while cancelling task `{task.name}`: {exc!s}")
+
+    def cancel_all_tasks(self) -> None:
+        """Cancel all running tasks."""
+        for task in list(self.tasks):
+            self.cancel_task(task)
+
+    def create_task(
+        self,
+        coro: Coroutine,
+        name: str | None = None,
+        invoice_queue: asyncio.Queue | None = None,
+    ) -> Task:
+        """Create a task. If a task with the same name exists, it will be cancelled."""
+        if name:
+            task = self.get_task(name)
+            if task:
+                self.cancel_task(task)
+        task = Task(coro=coro, name=name, invoice_queue=invoice_queue)
+        self.tasks.append(task)
+        return task
+
+    def create_permanent_task(
+        self,
+        func: Callable[[], Coroutine],
+        invoice_queue: asyncio.Queue | None = None,
+        name: str | None = None,
+        interval: int = 0,
+    ) -> Task:
+        """Create a task that runs forever and restarts on failure."""
+
+        async def wrapper():
+            while settings.lnbits_running:
+                await self._catch_everything_and_restart(func)
+                if interval > 0:
+                    await asyncio.sleep(interval)
+
+        return self.create_task(
+            coro=wrapper(), name=name or func.__name__, invoice_queue=invoice_queue
+        )
+
+    def register_invoice_listener(
+        self,
+        func: Callable[[Payment], Coroutine],
+        name: str | None = None,
+    ) -> Task:
+        """
+        A method intended for extensions to call when they want to be notified about
+        incoming payments. Will call provided Coroutine with the updated payment.
+        """
+        name = f"{name or uuid.uuid4()}_invoice_listener"
+        queue: asyncio.Queue[Payment] = asyncio.Queue()
+        return self.create_permanent_task(
+            self._invoice_listener_worker(func, queue),
+            name=name,
+            invoice_queue=queue,
+        )
+
+    async def _heart_beat(self) -> None:
+        """A heartbeat that removes done tasks logs the number of tasks."""
+        for task in self.tasks:
+            state = task.task._state if task.task else "NOT RUNNING"
+            if settings.task_heart_beat_verbose:
+                logger.debug(
+                    f"Task Manager: `{task.name}` state: `{state}` "
+                    f"created: {task.created_at.strftime('%Y-%m-%d %H:%M:%S')}`"
+                )
+            if task.task and task.task.done():
+                logger.debug(f"Task Manager: task `{task.name}` is done.")
+                self.cancel_task(task)
+        listeners_count = sum(1 for task in self.tasks if task.invoice_queue)
+        logger.debug(
+            f"Task Manager: {len(self.tasks) - listeners_count} tasks "
+            f"and {listeners_count} invoice listeners."
+        )
+
+    async def _catch_everything_and_restart(
+        self,
+        func: Callable[[], Coroutine],
+        restart_interval: int = 5,
+    ) -> None:
+        """Catches all exceptions from a function and restarts it after 5 seconds."""
+        while settings.lnbits_running:
+            try:
+                return await func()
+            except asyncio.CancelledError:
+                raise  # because we must pass this up
+            except Exception as exc:
+                if not settings.lnbits_running:
+                    return
+                logger.error(f"exception in background task `{func.__name__}`:", exc)
+                logger.error(traceback.format_exc())
+                logger.info(
+                    f"`{func.__name__}` restarts in {restart_interval} seconds."
+                )
+                await asyncio.sleep(restart_interval)
+
+    def _invoice_listener_worker(
+        self, func: Callable[[Payment], Coroutine], queue: asyncio.Queue[Payment]
+    ) -> Callable:
+        async def wrapper() -> None:
+            payment: Payment = await queue.get()
+            await func(payment)
+
+        return wrapper
+
+    def _invoice_dispatcher(self, payment: Payment) -> None:
+        """Dispatches a payment to all registered invoice listeners."""
+        for task in self.tasks:
+            if not task.invoice_queue:
+                continue
+            logger.debug(f"Enqueing payment to task {task.name}")
+            task.invoice_queue.put_nowait(payment)
+
+    async def _invoice_listener_consumer(self) -> None:
+        payment = await self.invoice_queue.get()
+        logger.info(f"got a payment notification {payment.checking_id}")
+        self._invoice_dispatcher(payment)
+
+    async def _internal_invoice_listener_consumer(self) -> None:
+        payment = await self.internal_invoice_queue.get()
+        logger.info(f"got an internal payment notification {payment.checking_id}")
+        self._invoice_dispatcher(payment)
+
+
+task_manager = TaskManager()

lnbits/tasks.py

@@ -1,148 +1,83 @@
 import asyncio
-import traceback
 import uuid
 from collections.abc import Callable, Coroutine
 
 from loguru import logger
 
 from lnbits.core.models import Payment
-from lnbits.core.services.payments import update_invoice_callback
+from lnbits.core.services.payments import get_standalone_payment
 from lnbits.settings import settings
-from lnbits.wallets import get_funding_source
-
-tasks: list[asyncio.Task] = []
-unique_tasks: dict[str, asyncio.Task] = {}
+from lnbits.task_manager import task_manager
 
 
+# DEPRECATED: use task_manager.create_task instead.
 def create_task(coro: Coroutine) -> asyncio.Task:
-    task = asyncio.create_task(coro)
-    tasks.append(task)
-    return task
+    logger.debug("DEPRECATED: use task_manager.create_task instead.")
+    return task_manager.create_task(coro).task
 
 
+# DEPRECATED: use task_manager.create_task with `name` kwarg.
 def create_unique_task(name: str, coro: Coroutine) -> asyncio.Task:
-    if unique_tasks.get(name):
-        logger.warning(f"task `{name}` already exists, cancelling it")
-        try:
-            unique_tasks[name].cancel()
-        except Exception as exc:
-            logger.warning(f"error while cancelling task `{name}`: {exc!s}")
-    task = asyncio.create_task(coro)
-    unique_tasks[name] = task
-    return task
+    logger.debug("DEPRECATED: use task_manager.create_task instead.")
+    return task_manager.create_task(coro, name=name).task
 
 
+# DEPRECATED: use task_manager.create_permanent_task instead.
 def create_permanent_task(func: Callable[[], Coroutine]) -> asyncio.Task:
-    return create_task(catch_everything_and_restart(func))
+    logger.debug("DEPRECATED: use task_manager.create_permanent_task instead.")
+    return task_manager.create_permanent_task(func).task
 
 
+# DEPRECATED: use task_manager.create_permanent_task with `name` argument instead.
 def create_permanent_unique_task(
     name: str, coro: Callable[[], Coroutine]
 ) -> asyncio.Task:
     return create_unique_task(name, catch_everything_and_restart(coro, name))
 
 
-def cancel_all_tasks() -> None:
-    for task in tasks:
-        try:
-            task.cancel()
-        except Exception as exc:
-            logger.warning(f"error while cancelling task: {exc!s}")
-    for name, task in unique_tasks.items():
-        try:
-            task.cancel()
-        except Exception as exc:
-            logger.warning(f"error while cancelling task `{name}`: {exc!s}")
-
-
+# DEPRECATED don't use this, use task_manager.create_permanent_task instead.
 async def catch_everything_and_restart(
     func: Callable[[], Coroutine],
     name: str = "unnamed",
-) -> Coroutine:
-    try:
-        return await func()
-    except asyncio.CancelledError:
-        raise  # because we must pass this up
-    except Exception as exc:
-        logger.error(f"exception in background task `{name}`:", exc)
-        logger.error(traceback.format_exc())
-        logger.error("will restart the task in 5 seconds.")
-        await asyncio.sleep(5)
-        return await catch_everything_and_restart(func, name)
+) -> None:
+    _ = name
+    return await task_manager._catch_everything_and_restart(func)
 
 
-invoice_listeners: dict[str, asyncio.Queue] = {}
-
-
-# TODO: name should not be optional
-# some extensions still dont use a name, but they should
 def register_invoice_listener(send_chan: asyncio.Queue, name: str | None = None):
     """
-    A method intended for extensions (and core/tasks.py) to call when they want to be
-    notified about new invoice payments incoming. Will emit all incoming payments.
+    DEPRECATED: use task_manager.register_invoice_listener instead,
+    which also allows to pass a callback instead of a queue.
+    This method will still work but it is not recommended for new code.
     """
-    if not name:
-        # fallback to a random name if extension didn't provide one
-        name = f"no_name_{str(uuid.uuid4())[:8]}"
+    logger.debug("DEPRECATED: use task_manager.register_invoice_listener instead.")
+    name = f"forward_{name or str(uuid.uuid4())[:8]}"
 
-    if invoice_listeners.get(name):
-        logger.warning(f"invoice listener `{name}` already exists, replacing it")
+    # here we just forwarding the payments to the provided queue
+    async def forward_queue(payment: Payment):
+        send_chan.put_nowait(payment)
 
-    logger.trace(f"registering invoice listener `{name}`")
-    invoice_listeners[name] = send_chan
-
-
-def unregister_invoice_listener(name: str) -> None:
-    if name in invoice_listeners:
-        invoice_listeners.pop(name, None)
-
-
-internal_invoice_queue: asyncio.Queue = asyncio.Queue(0)
+    task_manager.register_invoice_listener(forward_queue, name=name)
 
 
 async def internal_invoice_queue_put(checking_id: str) -> None:
     """
+    DEPRECATED: use task_manager.internal_invoice_queue instead,
     A method to call when it wants to notify about an internal invoice payment.
     """
-    await internal_invoice_queue.put(checking_id)
-
-
-async def internal_invoice_listener() -> None:
-    """
-    internal_invoice_queue will be filled directly in core/services.py
-    after the payment was deemed to be settled internally.
-
-    Called by the app startup sequence.
-    """
-    while settings.lnbits_running:
-        checking_id = await internal_invoice_queue.get()
-        logger.info(f"got an internal payment notification {checking_id}")
-        payment = await update_invoice_callback(checking_id)
-        if payment:
-            logger.success(f"internal invoice {checking_id} settled")
-            await invoice_callback_dispatcher(payment)
-
-
-async def invoice_listener() -> None:
-    """
-    invoice_listener will collect all invoices that come directly
-    from the backend wallet.
-
-    Called by the app startup sequence.
-    """
-    funding_source = get_funding_source()
-    async for checking_id in funding_source.paid_invoices_stream():
-        logger.info(f"got a payment notification {checking_id}")
-        payment = await update_invoice_callback(checking_id)
-        if payment:
-            logger.success(f"fundingsource invoice {checking_id} settled")
-            await invoice_callback_dispatcher(payment)
+    payment = await get_standalone_payment(checking_id, incoming=True)
+    if not payment:
+        logger.warning(f"internal_invoice_queue_put: payment {checking_id} not found")
+        return
+    await task_manager.internal_invoice_queue.put(payment)
 
 
+# DEPRECATED use task_manager.register_invoice_listener(coro, name="myext")
 def wait_for_paid_invoices(
     invoice_listener_name: str,
     func: Callable[[Payment], Coroutine],
 ) -> Callable[[], Coroutine]:
+    logger.debug("DEPRECATED: use task_manager.register_invoice_listener instead.")
 
     async def wrapper() -> None:
         invoice_queue: asyncio.Queue = asyncio.Queue()
@@ -152,27 +87,3 @@ def wait_for_paid_invoices(
             await func(payment)
 
     return wrapper
-
-
-def run_interval(
-    interval_seconds: int,
-    func: Callable[[], Coroutine],
-) -> Callable[[], Coroutine]:
-    """Run a function at a specified interval in seconds, while the server is running"""
-
-    async def wrapper() -> None:
-        while settings.lnbits_running:
-            try:
-                await func()
-            except Exception as e:
-                logger.error(f"Error occurred in interval task: {e}")
-                logger.warning(traceback.format_exc())
-            await asyncio.sleep(interval_seconds)
-
-    return wrapper
-
-
-async def invoice_callback_dispatcher(payment: Payment):
-    for name, send_chan in invoice_listeners.items():
-        logger.trace(f"invoice listeners: sending to `{name}`")
-        await send_chan.put(payment)

lnbits/templates/base.html

@@ -16,6 +16,18 @@
         src: url("{{ static_url_for('static', 'fonts/material-icons-v50.woff2') }}")
           format('woff2');
       }
+
+      .wasm-extension-page,
+      .wasm-extension-frame {
+        height: calc(100vh - 56px);
+        min-height: calc(100vh - 56px);
+        width: 100%;
+      }
+
+      .wasm-extension-frame {
+        border: 0;
+        display: block;
+      }
     </style>
     <title>{% block title %}{{ SITE_TITLE }}{% endblock %}</title>
     <meta charset="utf-8" />
@@ -44,12 +56,14 @@
         <lnbits-drawer v-if="g.user && !g.isPublicPage"></lnbits-drawer>
         {% block page_container %}
         <q-page-container>
-          <q-page class="q-px-md q-py-lg" :class="{'q-px-lg': $q.screen.gt.xs}">
+          <q-page
+            :class="$route.path.startsWith('/ext/') ? 'q-pa-none' : ['q-px-md', 'q-py-lg', {'q-px-lg': $q.screen.gt.xs}]"
+          >
             <lnbits-wallet-new
-              v-if="g.user && !g.isPublicPage"
+              v-if="g.user && !g.isPublicPage && !$route.path.startsWith('/ext/')"
             ></lnbits-wallet-new>
             <lnbits-header-wallets
-              v-if="g.user && !g.isPublicPage"
+              v-if="g.user && !g.isPublicPage && !$route.path.startsWith('/ext/')"
             ></lnbits-header-wallets>
             <!-- block page content from static extensions -->
             <div

lnbits/templates/components.vue

@@ -1,4 +1,5 @@
-{% include('components/admin/funding.vue') %} {%
+{% include('components/admin/funding_seed_backup.vue') %} {%
+include('components/admin/funding.vue') %} {%
 include('components/admin/funding_sources.vue') %} {%
 include('components/admin/fiat_providers.vue') %} {%
 include('components/admin/exchange_providers.vue') %} {%
@@ -19,6 +20,7 @@ include('components/lnbits-header-wallets.vue') %} {%
 include('components/lnbits-drawer.vue') %} {%
 include('components/lnbits-home-logos.vue') %} {%
 include('components/lnbits-manage-extension-list.vue') %} {%
+include('components/lnbits-extension-permissions.vue') %} {%
 include('components/lnbits-manage-wallet-list.vue') %} {%
 include('components/lnbits-language-dropdown.vue') %} {%
 include('components/lnbits-payment-list.vue') %} {%

lnbits/templates/components/admin/exchange_providers.vue

@@ -1,7 +1,46 @@
 <template id="lnbits-admin-exchange-providers">
-  <h6 class="q-my-none q-mb-sm">
-    <span v-text="$t('exchange_providers')"></span>
-  </h6>
+  <h6 class="q-my-none q-mb-xs">LNbits Price Aggregator</h6>
+  <p class="q-mb-md text-caption text-grey">
+    A privacy-friendly, open-source Bitcoin price aggregator maintained by the
+    LNbits team. Aggregates prices from multiple exchanges and returns a median,
+    no API keys required.
+    <a href="https://price.lnbits.com" target="_blank" rel="noopener"
+      >price.lnbits.com</a
+    >
+    &mdash;
+    <a
+      href="https://github.com/lnbits/lnbits-price-aggregator"
+      target="_blank"
+      rel="noopener"
+      >GitHub</a
+    >
+  </p>
+
+  <div class="row q-mb-md items-start">
+    <div class="col-auto q-mr-md q-mt-sm">
+      <q-toggle
+        v-model="formData.lnbits_price_aggregator_enabled"
+        @update:model-value="formData.touch = null"
+        label="Use Price Aggregator"
+      >
+      </q-toggle>
+    </div>
+    <div class="col-12 col-md-7">
+      <q-input
+        filled
+        v-model="formData.lnbits_price_aggregator_url"
+        type="text"
+        label="Price Aggregator URL"
+        hint="Fetch BTC price from this aggregator instead of individual providers below."
+        :disable="!formData.lnbits_price_aggregator_enabled"
+        @update:model-value="formData.touch = null"
+      >
+      </q-input>
+    </div>
+  </div>
+
+  <q-separator class="q-my-md"></q-separator>
+  <h6 class="q-my-none q-mb-sm">Bitcoin Price History</h6>
 
   <div class="row">
     <div class="col-12 col-md-8">
@@ -53,6 +92,11 @@
     </div>
   </div>
 
+  <q-separator class="q-my-md"></q-separator>
+  <h6 class="q-my-none q-mb-sm">
+    <span v-text="$t('exchange_providers')"></span>
+  </h6>
+
   <div class="row q-mt-md">
     <div class="col-6">
       <q-btn
@@ -60,6 +104,7 @@
         label="Add Exchange Provider"
         color="primary"
         class="q-mb-md"
+        :disable="formData.lnbits_price_aggregator_enabled"
       >
       </q-btn>
     </div>
@@ -70,12 +115,20 @@
         :label="$t('reset_defaults')"
         color="primary"
         class="float-right"
+        :disable="formData.lnbits_price_aggregator_enabled"
       >
       </q-btn>
     </div>
   </div>
 
-  <div class="overflow-auto">
+  <div
+    class="overflow-auto"
+    :style="
+      formData.lnbits_price_aggregator_enabled
+        ? 'opacity:0.4;pointer-events:none'
+        : ''
+    "
+  >
     <q-table
       row-key="name"
       :rows="formData.lnbits_exchange_rate_providers"

lnbits/templates/components/admin/funding.vue

@@ -301,5 +301,11 @@
         </div>
       </div>
     </div>
+    <lnbits-admin-funding-seed-backup
+      :active="active"
+      :is-super-user="isSuperUser"
+      :form-data="formData"
+      :settings="settings"
+    ></lnbits-admin-funding-seed-backup>
   </q-card-section>
 </template>

lnbits/templates/components/admin/funding_seed_backup.vue

@@ -0,0 +1,136 @@
+<template id="lnbits-admin-funding-seed-backup">
+  <q-dialog v-model="dialog.show">
+    <q-card style="width: 760px; max-width: 95vw; border-radius: 8px">
+      <q-card-section class="q-pb-md">
+        <div class="row q-col-gutter-sm">
+          <div class="col-6">
+            <q-chip
+              square
+              class="full-width"
+              icon="looks_one"
+              :color="dialog.step === 1 ? 'primary' : 'grey-9'"
+              text-color="white"
+              label="Backup"
+            ></q-chip>
+          </div>
+          <div class="col-6">
+            <q-chip
+              square
+              class="full-width"
+              icon="looks_two"
+              :color="dialog.step === 2 ? 'primary' : 'grey-9'"
+              text-color="white"
+              label="Verify"
+            ></q-chip>
+          </div>
+        </div>
+      </q-card-section>
+
+      <q-separator></q-separator>
+
+      <q-card-section v-if="dialog.step === 1">
+        <div class="row items-center justify-between q-mb-md">
+          <div>
+            <div
+              class="text-subtitle1"
+              v-text="`${seedWords.length}-word recovery phrase`"
+            ></div>
+            <div
+              class="text-caption text-grey-5"
+              v-text="'Write these words down in order.'"
+            ></div>
+          </div>
+          <q-btn
+            outline
+            no-caps
+            color="primary"
+            :icon="dialog.visible ? 'visibility_off' : 'visibility'"
+            :label="dialog.visible ? 'Hide words' : 'Show words'"
+            @click="dialog.visible = !dialog.visible"
+          ></q-btn>
+        </div>
+
+        <div class="row q-col-gutter-sm">
+          <div
+            class="col-4 col-md-3"
+            v-for="word in seedWords"
+            :key="word.index"
+          >
+            <div
+              class="row items-center no-wrap rounded-borders"
+              style="
+                min-height: 42px;
+                border: 1px solid rgba(255, 255, 255, 0.14);
+                background: rgba(255, 255, 255, 0.035);
+              "
+            >
+              <div
+                class="text-caption text-grey-5 text-center"
+                style="
+                  width: 42px;
+                  border-right: 1px solid rgba(255, 255, 255, 0.1);
+                "
+                v-text="word.index + 1"
+              ></div>
+              <div
+                class="text-body2 text-weight-medium q-px-sm"
+                style="min-width: 0; overflow-wrap: anywhere"
+                v-text="dialog.visible ? word.word : '••••••'"
+              ></div>
+            </div>
+          </div>
+        </div>
+
+        <div class="row justify-end q-mt-lg">
+          <q-btn
+            color="primary"
+            no-caps
+            label="I have written it down"
+            @click="prepareChallenge"
+          ></q-btn>
+        </div>
+      </q-card-section>
+
+      <q-card-section v-if="dialog.step === 2">
+        <div class="q-mb-md">
+          <div class="text-subtitle1" v-text="'Confirm your backup'"></div>
+          <div
+            class="text-caption text-grey-5"
+            v-text="
+              'Enter the requested words from your written recovery phrase.'
+            "
+          ></div>
+        </div>
+
+        <div class="row q-col-gutter-md">
+          <div
+            class="col-12 col-sm-6"
+            v-for="word in dialog.challenge"
+            :key="word.index"
+          >
+            <q-input
+              v-model.trim="dialog.answers[word.index]"
+              filled
+              :label="`Word ${word.index + 1}`"
+            ></q-input>
+          </div>
+        </div>
+        <div
+          class="text-negative q-mt-sm"
+          v-if="dialog.error"
+          v-text="dialog.error"
+        ></div>
+        <div class="row justify-between q-mt-lg">
+          <q-btn flat no-caps label="Back" @click="dialog.step = 1"></q-btn>
+          <q-btn
+            color="primary"
+            icon="check"
+            no-caps
+            label="Confirm backup"
+            @click="submitChallenge"
+          ></q-btn>
+        </div>
+      </q-card-section>
+    </q-card>
+  </q-dialog>
+</template>

lnbits/templates/components/lnbits-extension-permissions.vue

@@ -0,0 +1,105 @@
+<template id="lnbits-extension-permissions">
+  <q-list bordered separator>
+    <q-expansion-item
+      v-for="permission of displayItems"
+      :key="permission.id"
+      dense
+      expand-separator
+      class="q-pt-xs"
+    >
+      <template v-slot:header>
+        <q-item-section>
+          <q-item-label class="text-weight-medium">
+            <span v-text="permission.label"></span>
+          </q-item-label>
+        </q-item-section>
+        <q-item-section
+          v-if="permission.risk.level !== 'low' || permission.badges.length"
+          side
+          top
+        >
+          <div class="row items-center justify-end q-gutter-xs">
+            <q-badge
+              v-for="badge of permission.badges"
+              :key="badge.key"
+              outline
+              color="primary"
+              v-text="badge.label"
+            ></q-badge>
+            <q-badge
+              v-if="permission.risk.level !== 'low'"
+              :color="permission.risk.color"
+              v-text="permission.risk.label"
+            ></q-badge>
+          </div>
+        </q-item-section>
+      </template>
+
+      <div class="q-px-md q-pb-sm">
+        <div
+          v-if="permission.risk.warning"
+          class="row items-center text-negative text-caption q-mb-xs"
+        >
+          <q-icon name="warning" size="16px" class="q-mr-xs"></q-icon>
+          <span v-text="permission.risk.warning"></span>
+        </div>
+        <p
+          v-for="description of permission.descriptions"
+          :key="description"
+          class="text-caption q-mb-xs"
+          v-text="description"
+        ></p>
+        <p
+          v-for="policy of permission.invoicePolicies"
+          :key="policy.table + ':' + policy.walletField"
+          class="text-caption q-mb-xs"
+          v-text="publicInvoicePolicySentence(policy)"
+        ></p>
+        <ul v-if="permission.fieldGroups.length" class="q-my-sm q-pl-md">
+          <li v-for="group of permission.fieldGroups" :key="group.table">
+            <span v-text="group.table"></span>
+            <ul v-if="group.fields.length" class="q-pl-md">
+              <li
+                v-for="field of group.fields"
+                :key="group.table + ':' + field"
+                v-text="field"
+              ></li>
+            </ul>
+          </li>
+        </ul>
+        <div v-if="permission.extensionAccess.length" class="q-mt-sm">
+          <div
+            class="text-caption text-grey"
+            v-text="$t('extension_permission_extension_api_request_extensions')"
+          ></div>
+          <div
+            v-for="target of permission.extensionAccess"
+            :key="target.id"
+            class="row items-center q-gutter-xs q-mt-xs"
+          >
+            <span class="text-caption" v-text="target.name"></span>
+            <q-badge
+              v-for="access of target.access"
+              :key="target.id + access"
+              color="grey-7"
+              v-text="permissionAccessLabel(access)"
+            ></q-badge>
+          </div>
+        </div>
+        <div v-if="permission.httpHosts.length" class="q-mt-sm">
+          <div
+            class="text-caption text-grey"
+            v-text="$t('extension_permission_http_request_hosts')"
+          ></div>
+          <ul class="q-my-sm q-pl-md">
+            <li
+              v-for="host of permission.httpHosts"
+              :key="host"
+              v-text="host"
+            ></li>
+          </ul>
+        </div>
+      </div>
+    </q-expansion-item>
+  </q-list>
+</template>

lnbits/templates/components/lnbits-manage-extension-list.vue

@@ -18,13 +18,18 @@
     <q-item
       v-for="extension in userExtensions"
       clickable
-      :active="$route.path.startsWith('/' + extension.code)"
+      :active="extensionActive(extension)"
       tag="a"
-      :to="'/' + extension.code + '/'"
+      :to="extensionUrl(extension)"
     >
       <q-item-section side>
         <q-avatar size="md">
-          <q-img :src="extension.tile" style="max-width: 20px"></q-img>
+          <img
+            v-if="extension.tile"
+            :src="extension.tile"
+            style="width: 20px; height: 20px; object-fit: contain"
+          />
+          <q-icon v-else name="extension" size="20px"></q-icon>
         </q-avatar>
       </q-item-section>
       <q-item-section>
@@ -32,10 +37,7 @@
           ><span v-text="extension.name"></span>
         </q-item-label>
       </q-item-section>
-      <q-item-section
-        side
-        v-show="$route.path.startsWith('/' + extension.code)"
-      >
+      <q-item-section side v-show="extensionActive(extension)">
         <q-icon name="chevron_right" color="grey-5" size="md"></q-icon>
       </q-item-section>
     </q-item>

lnbits/templates/components/lnbits-wallet-api-docs.vue

@@ -6,6 +6,9 @@
     :content-inset-level="0.5"
   >
     <q-card-section>
+      <q-banner dense rounded class="bg-warning text-black q-mb-md">
+        These keys should be kept safe, sharing them could risk losing funds.
+      </q-banner>
       <q-list>
         <q-item dense class="q-pa-none">
           <q-item-section>

lnbits/templates/pages/admin.vue

@@ -199,6 +199,7 @@
                 >
                   <q-tab-panel name="funding">
                     <lnbits-admin-funding
+                      :active="tab === 'funding'"
                       :is-super-user="isSuperUser"
                       :settings="settings"
                       :form-data="formData"

lnbits/templates/pages/extensions.vue

@@ -7,7 +7,29 @@
             <q-tabs v-model="tab" active-color="primary" align="left">
               <q-tab name="installed" :label="$t('installed')"></q-tab>
               <q-tab name="all" :label="$t('all')"></q-tab>
-              <q-tab name="featured" :label="$t('featured')"></q-tab>
+              <q-tab
+                v-show="$q.screen.gt.xs"
+                name="featured"
+                :label="$t('featured')"
+              ></q-tab>
+              <q-btn-dropdown auto-close stretch flat :label="$t('categories')">
+                <q-list>
+                  <q-item
+                    clickable
+                    v-close-popup
+                    v-for="category in categories"
+                    @click="tab = category"
+                    :key="category"
+                  >
+                    <q-item-section>
+                      <q-item-label
+                        class="text-capitalize"
+                        v-text="category"
+                      ></q-item-label>
+                    </q-item-section>
+                  </q-item>
+                </q-list>
+              </q-btn-dropdown>
               <i
                 v-if="!g.user.admin && tab != 'installed'"
                 v-text="$t('only_admins_can_install')"
@@ -291,7 +313,8 @@
                 "
                 flat
                 color="primary"
-                @click="openExtension(extension)"
+                type="a"
+                :href="extensionOpenUrl(extension)"
                 :label="$t('open')"
               ></q-btn>
               <q-btn
@@ -328,18 +351,6 @@
                   <span v-text="$t('enable_extension_details')">
                   </span> </q-tooltip
               ></q-btn>
-              <q-btn
-                v-if="
-                  extension.isInstalled &&
-                  extension.isActive &&
-                  !g.user.extensions.includes(extension.id) &&
-                  extension.extensionType === 'wasm'
-                "
-                flat
-                color="grey-5"
-                @click="openPermissionsForExtension(extension)"
-                label="Permissions"
-              ></q-btn>
 
               <q-btn
                 @click="showManageExtension(extension)"
@@ -444,8 +455,49 @@
     </q-card>
   </q-dialog>
 
-  <q-dialog v-model="showManageExtensionDialog" position="top">
-    <q-card v-if="selectedRelease" class="q-pa-lg lnbits__dialog-card">
+  <q-dialog
+    v-model="showManageExtensionDialog"
+    position="top"
+    @hide="onManageExtensionDialogHide"
+  >
+    <q-card v-if="permissionGrant.show" class="q-pa-md lnbits__dialog-card">
+      <q-card-section>
+        <div class="text-h6" v-text="$t('extension_permissions_title')"></div>
+        <q-banner
+          v-if="permissionGrantHasHighRisk()"
+          dense
+          class="bg-red-1 text-red-10 q-mt-md"
+        >
+          <template v-slot:avatar>
+            <q-icon name="warning" color="negative"></q-icon>
+          </template>
+          <span v-text="$t('extension_permissions_high_risk_warning')"></span>
+        </q-banner>
+      </q-card-section>
+
+      <lnbits-extension-permissions
+        class="q-mt-md"
+        :permissions="permissionGrant.permissions"
+        :extensions="extensions"
+      ></lnbits-extension-permissions>
+
+      <div class="row q-mt-lg">
+        <q-btn
+          flat
+          color="grey"
+          v-text="$t('cancel')"
+          @click="cancelExtensionPermissions"
+        ></q-btn>
+        <q-btn
+          flat
+          color="primary"
+          class="q-ml-auto"
+          v-text="$t('extension_permissions_grant_install')"
+          @click="grantExtensionPermissions"
+        ></q-btn>
+      </div>
+    </q-card>
+    <q-card v-else-if="selectedRelease" class="q-pa-lg lnbits__dialog-card">
       <q-card-section>
         <div v-if="selectedRelease.paymentRequest">
           <lnbits-qrcode
@@ -932,91 +984,6 @@
     </q-card>
   </q-dialog>
 
-  <q-dialog v-model="permissionsDialog.show" position="top">
-    <q-card class="q-pa-md" style="min-width: 360px; max-width: 90vw">
-      <q-card-section>
-        <div class="text-h6">Permissions required</div>
-        <div class="text-caption text-grey">This extension can:</div>
-        <q-list v-if="permissionsDialog.extension">
-          <q-item
-            v-for="perm in permissionsDialog.extension.permissions"
-            :key="perm.id || perm"
-            clickable
-          >
-            <q-item-section>
-              <q-item-label v-text="perm.label || perm"></q-item-label>
-              <q-item-label
-                caption
-                v-if="perm.description"
-                v-text="perm.description"
-              ></q-item-label>
-            </q-item-section>
-            <q-item-section side>
-              <q-checkbox
-                v-model="permissionsDialog.checked"
-                :val="perm.id || perm"
-              />
-            </q-item-section>
-          </q-item>
-        </q-list>
-        <div
-          v-if="
-            permissionsDialog.tagOptions && permissionsDialog.tagOptions.length
-          "
-          class="q-mt-md"
-        >
-          <div class="text-caption text-grey">
-            Allow this extension to listen for payment tags:
-          </div>
-          <q-list>
-            <q-item
-              v-for="tag in permissionsDialog.tagOptions"
-              :key="tag"
-              clickable
-            >
-              <q-item-section>
-                <q-item-label v-text="tag"></q-item-label>
-              </q-item-section>
-              <q-item-section side>
-                <q-checkbox v-model="permissionsDialog.tags" :val="tag" />
-              </q-item-section>
-            </q-item>
-          </q-list>
-        </div>
-        <div
-          v-if="permissionsDialog.missing && permissionsDialog.missing.length"
-          class="q-mt-md text-negative"
-        >
-          <div class="text-caption">
-            Missing API endpoints required by this extension:
-          </div>
-          <q-chip
-            v-for="perm in permissionsDialog.missing"
-            :key="perm"
-            :label="perm"
-            color="red-2"
-            text-color="black"
-            class="q-mr-xs q-mt-xs"
-          />
-        </div>
-      </q-card-section>
-      <q-card-actions align="right">
-        <q-btn
-          flat
-          color="grey"
-          v-text="$t('cancel')"
-          @click="cancelPermissionsDialog"
-        ></q-btn>
-        <q-btn
-          color="primary"
-          :disable="!permissionsAllChecked || permissionsHasMissingEndpoints"
-          label="Save"
-          @click="confirmPermissionsDialog"
-        ></q-btn>
-      </q-card-actions>
-    </q-card>
-  </q-dialog>
-
   <q-dialog v-model="showExtensionDetailsDialog" position="top">
     <q-card
       v-if="selectedExtensionDetails"

lnbits/templates/wasm_extension.html

@@ -0,0 +1 @@
+{% extends "base.html" %}

lnbits/utils/cache.py

@@ -1,13 +1,8 @@
 from __future__ import annotations
 
-import asyncio
 from time import time
 from typing import Any, NamedTuple
 
-from loguru import logger
-
-from lnbits.settings import settings
-
 
 class Cached(NamedTuple):
     value: Any
@@ -22,8 +17,7 @@ class Cache:
     Small caching utility providing simple get/set interface (very much like redis)
     """
 
-    def __init__(self, interval: float = 10) -> None:
-        self.interval = interval
+    def __init__(self) -> None:
         self._values: dict[Any, Cached] = {}
 
     def value(self, key: str) -> Cached | None:
@@ -59,16 +53,11 @@ class Cache:
             self.set(key, value, expiry=expiry)
             return value
 
-    async def invalidate_forever(self):
-        while settings.lnbits_running:
-            try:
-                await asyncio.sleep(self.interval)
-                ts = time()
-                expired = [k for k, v in self._values.items() if v.expiry < ts]
-                for k in expired:
-                    self._values.pop(k)
-            except Exception:
-                logger.error("Error invalidating cache")
+    async def invalidate_cache(self):
+        ts = time()
+        expired = [k for k, v in self._values.items() if v.expiry < ts]
+        for k in expired:
+            self._values.pop(k)
 
 
 cache = Cache()

lnbits/utils/electrum.py

@@ -0,0 +1,439 @@
+"""
+Electrum protocol client (https://github.com/spesmilo/electrum-protocol).
+
+JSON-RPC 2.0 over TCP / SSL (newline-delimited), with request/response
+correlation, subscription dispatch, and automatic keepalive pings.
+server.version is sent automatically on connect as required by the spec.
+"""
+
+import asyncio
+import hashlib
+import itertools
+import json
+import ssl
+from collections.abc import Callable
+from typing import Any
+from urllib.parse import urlparse
+
+from loguru import logger
+from pydantic import BaseModel
+
+
+class ElectrumError(Exception):
+    pass
+
+
+def scripthash_from_scriptpubkey(scriptpubkey: bytes) -> str:
+    """Electrum script hash: SHA-256 of scriptPubKey, byte-reversed to hex."""
+    return hashlib.sha256(scriptpubkey).digest()[::-1].hex()
+
+
+# ---------------------------------------------------------------------------
+# Response models
+# ---------------------------------------------------------------------------
+
+
+class Balance(BaseModel):
+    confirmed: int
+    unconfirmed: int
+
+
+class HistoryEntry(BaseModel):
+    tx_hash: str
+    height: int
+    fee: int | None = None  # present for mempool entries
+
+
+class MempoolEntry(BaseModel):
+    tx_hash: str
+    height: int
+    fee: int
+
+
+class UTXO(BaseModel):
+    tx_hash: str
+    tx_pos: int
+    height: int
+    value: int  # satoshis
+
+
+class BlockHeader(BaseModel):
+    height: int
+    hex: str
+
+
+class BlockHeaderProof(BaseModel):
+    """Returned by get_block_header when cp_height > 0."""
+
+    branch: list[str]
+    header: str
+    root: str
+
+
+class BlockHeaders(BaseModel):
+    count: int
+    hex: str
+    max: int
+
+
+class MerkleProof(BaseModel):
+    block_height: int
+    merkle: list[str]
+    pos: int
+
+
+class TxIdWithMerkle(BaseModel):
+    tx_hash: str
+    merkle: list[str]
+
+
+class FeeHistogramEntry(BaseModel):
+    fee_rate: float
+    vsize: float
+
+
+class ServerFeatures(BaseModel):
+    class Config:
+        extra = "allow"
+
+    genesis_hash: str = ""
+    protocol_max: str = ""
+    protocol_min: str = ""
+    server_version: str = ""
+    pruning: int | None = None
+    hash_function: str = "sha256d"
+    hosts: dict[str, Any] = {}
+
+
+# ---------------------------------------------------------------------------
+# Client
+# ---------------------------------------------------------------------------
+
+
+class ElectrumClient:
+    """
+    Async Electrum protocol client over plain TCP or SSL.
+
+    Messages are newline-terminated JSON-RPC 2.0, as required by the spec.
+    Handles request/response correlation by id, routes push notifications to
+    registered callbacks, and sends periodic pings to keep the connection alive.
+
+    Usage::
+
+        # Plain TCP
+        async with ElectrumClient("tcp://blockstream.info:110") as client:
+            height = await client.get_height()
+
+        # SSL
+        async with ElectrumClient("ssl://electrum.blockstream.info:50002") as c:
+            height = await c.get_height()
+    """
+
+    def __init__(
+        self,
+        url: str,
+        client_name: str = "lnbits",
+        protocol_version: str = "1.4",
+        ping_interval: float = 60.0,
+    ) -> None:
+        parsed = urlparse(url)
+        self.host = parsed.hostname or ""
+        self.port = parsed.port or (
+            50002 if parsed.scheme in ("ssl", "https") else 50001
+        )
+        self.use_ssl = parsed.scheme in ("ssl", "https")
+        self.client_name = client_name
+        self.protocol_version = protocol_version
+        self.ping_interval = ping_interval
+        self._counter = itertools.count(1)
+        self._pending: dict[int, asyncio.Future[Any]] = {}
+        self._subscriptions: dict[str, list[Callable[[list[Any]], Any]]] = {}
+        self._recv_task: asyncio.Task[None] | None = None
+        self._ping_task: asyncio.Task[None] | None = None
+        self._reader: asyncio.StreamReader | None = None
+        self._writer: asyncio.StreamWriter | None = None
+        self.server_version: str = ""
+        self.negotiated_protocol: str = ""
+
+    async def connect(self, timeout: float = 10.0) -> None:
+        ssl_ctx: ssl.SSLContext | None = None
+        if self.use_ssl:
+            ssl_ctx = ssl.create_default_context()
+        self._reader, self._writer = await asyncio.wait_for(
+            asyncio.open_connection(
+                self.host, self.port, ssl=ssl_ctx, limit=4 * 1024 * 1024
+            ),
+            timeout=timeout,
+        )
+        self._recv_task = asyncio.create_task(self._recv_loop())
+        result = await self._call(
+            "server.version", [self.client_name, self.protocol_version], timeout=timeout
+        )
+        self.server_version, self.negotiated_protocol = result[0], result[1]
+        logger.debug(
+            f"Electrum connected: server={self.server_version}"
+            f" protocol={self.negotiated_protocol}"
+        )
+        if self.ping_interval > 0:
+            self._ping_task = asyncio.create_task(self._ping_loop())
+
+    async def close(self) -> None:
+        for task in (self._ping_task, self._recv_task):
+            if task:
+                task.cancel()
+                try:
+                    await task
+                except asyncio.CancelledError:
+                    pass
+                except Exception:
+                    logger.debug("Electrum: error while cancelling task")
+        self._ping_task = None
+        self._recv_task = None
+        if self._writer:
+            self._writer.close()
+            try:
+                await asyncio.wait_for(self._writer.wait_closed(), timeout=5.0)
+            except Exception:
+                logger.debug("Electrum: error while closing writer")
+        self._reader = None
+        self._writer = None
+
+    async def __aenter__(self) -> "ElectrumClient":
+        try:
+            await self.connect()
+        except BaseException:
+            await self.close()
+            raise
+        return self
+
+    async def __aexit__(self, *_: Any) -> None:
+        await self.close()
+
+    # ---- internal plumbing ----
+
+    async def _call(
+        self,
+        method: str,
+        params: list[Any] | dict[str, Any] | None = None,
+        timeout: float = 30.0,
+    ) -> Any:
+        if not self._writer:
+            raise ElectrumError("Not connected")
+        req_id = next(self._counter)
+        fut: asyncio.Future[Any] = asyncio.get_running_loop().create_future()
+        self._pending[req_id] = fut
+        self._writer.write(
+            json.dumps(
+                {
+                    "jsonrpc": "2.0",
+                    "id": req_id,
+                    "method": method,
+                    "params": params if params is not None else [],
+                }
+            ).encode()
+            + b"\n"
+        )
+        await self._writer.drain()
+        try:
+            return await asyncio.wait_for(asyncio.shield(fut), timeout=timeout)
+        except asyncio.TimeoutError as exc:
+            self._pending.pop(req_id, None)
+            raise ElectrumError(f"Timeout waiting for response to {method!r}") from exc
+
+    def _dispatch(self, msg: dict[str, Any]) -> None:
+        msg_id = msg.get("id")
+        if msg_id is not None:
+            fut = self._pending.pop(msg_id, None)
+            if fut and not fut.done():
+                err = msg.get("error")
+                if err:
+                    fut.set_exception(ElectrumError(err))
+                else:
+                    fut.set_result(msg.get("result"))
+        else:
+            method = msg.get("method", "")
+            params = msg.get("params", [])
+            for cb in list(self._subscriptions.get(method, [])):
+                try:
+                    result = cb(params)
+                    if asyncio.iscoroutine(result):
+                        self._bg_tasks.add(asyncio.create_task(result))
+                except Exception:
+                    logger.exception(f"Electrum: callback error for {method!r}")
+
+    async def _recv_loop(self) -> None:
+        assert self._reader
+        self._bg_tasks: set[asyncio.Task[Any]] = set()
+        buf = b""
+        try:
+            while True:
+                chunk = await self._reader.read(65536)
+                if not chunk:
+                    break
+                buf += chunk
+                while b"\n" in buf:
+                    line, buf = buf.split(b"\n", 1)
+                    if not line.strip():
+                        continue
+                    try:
+                        msg: dict[str, Any] = json.loads(line)
+                    except json.JSONDecodeError:
+                        logger.warning(f"Electrum: invalid JSON: {line!r}")
+                        continue
+                    self._dispatch(msg)
+        except asyncio.CancelledError:
+            pass
+        except Exception:
+            logger.exception("Electrum: recv loop error")
+        finally:
+            for fut in self._pending.values():
+                if not fut.done():
+                    fut.set_exception(ElectrumError("Connection closed"))
+            self._pending.clear()
+
+    async def _ping_loop(self) -> None:
+        try:
+            while True:
+                await asyncio.sleep(self.ping_interval)
+                await self._call("server.ping")
+        except asyncio.CancelledError:
+            pass
+        except Exception:
+            logger.exception("Electrum: ping loop error")
+
+    # ---- subscription management ----
+
+    def on(self, method: str, callback: Callable[[list[Any]], Any]) -> None:
+        """Register a notification callback for a subscription method."""
+        self._subscriptions.setdefault(method, []).append(callback)
+
+    def off(self, method: str, callback: Callable[[list[Any]], Any]) -> None:
+        """Remove a previously registered notification callback."""
+        cbs = self._subscriptions.get(method)
+        if cbs and callback in cbs:
+            cbs.remove(callback)
+
+    # ---- server methods ----
+
+    async def server_ping(self) -> None:
+        await self._call("server.ping")
+
+    async def server_banner(self) -> str:
+        return await self._call("server.banner")
+
+    async def server_features(self) -> ServerFeatures:
+        data = await self._call("server.features")
+        return ServerFeatures.parse_obj(data)
+
+    async def server_peers(self) -> list[Any]:
+        return await self._call("server.peers.subscribe")
+
+    # ---- scripthash methods ----
+
+    async def get_balance(self, scripthash: str) -> Balance:
+        data = await self._call("blockchain.scripthash.get_balance", [scripthash])
+        return Balance.parse_obj(data)
+
+    async def get_history(self, scripthash: str) -> list[HistoryEntry]:
+        data = await self._call("blockchain.scripthash.get_history", [scripthash])
+        return [HistoryEntry.parse_obj(e) for e in data]
+
+    async def get_mempool(self, scripthash: str) -> list[MempoolEntry]:
+        data = await self._call("blockchain.scripthash.get_mempool", [scripthash])
+        return [MempoolEntry.parse_obj(e) for e in data]
+
+    async def listunspent(self, scripthash: str) -> list[UTXO]:
+        data = await self._call("blockchain.scripthash.listunspent", [scripthash])
+        return [UTXO.parse_obj(e) for e in data]
+
+    async def subscribe_scripthash(
+        self,
+        scripthash: str,
+        callback: Callable[[list[Any]], Any] | None = None,
+    ) -> str | None:
+        """Subscribe to status changes; returns current status hash or None."""
+        if callback:
+            self.on("blockchain.scripthash.subscribe", callback)
+        return await self._call("blockchain.scripthash.subscribe", [scripthash])
+
+    async def unsubscribe_scripthash(
+        self,
+        scripthash: str,
+        callback: Callable[[list[Any]], Any] | None = None,
+    ) -> bool:
+        if callback:
+            self.off("blockchain.scripthash.subscribe", callback)
+        return await self._call("blockchain.scripthash.unsubscribe", [scripthash])
+
+    async def subscribe_headers(
+        self,
+        callback: Callable[[list[Any]], Any] | None = None,
+    ) -> BlockHeader:
+        """Subscribe to new block headers; returns current tip."""
+        if callback:
+            self.on("blockchain.headers.subscribe", callback)
+        data = await self._call("blockchain.headers.subscribe")
+        return BlockHeader.parse_obj(data)
+
+    # ---- transaction methods ----
+
+    async def broadcast(self, raw_tx: str) -> str:
+        """Broadcast a raw transaction hex; returns txid on success."""
+        return await self._call("blockchain.transaction.broadcast", [raw_tx])
+
+    async def get_transaction(
+        self, txid: str, verbose: bool = False
+    ) -> str | dict[str, Any]:
+        return await self._call("blockchain.transaction.get", [txid, verbose])
+
+    async def get_merkle(self, txid: str, height: int) -> MerkleProof:
+        data = await self._call("blockchain.transaction.get_merkle", [txid, height])
+        return MerkleProof.parse_obj(data)
+
+    async def get_tx_id_from_pos(
+        self, height: int, tx_pos: int, merkle: bool = False
+    ) -> str | TxIdWithMerkle:
+        data = await self._call(
+            "blockchain.transaction.id_from_pos", [height, tx_pos, merkle]
+        )
+        if isinstance(data, dict):
+            return TxIdWithMerkle.parse_obj(data)
+        return data
+
+    # ---- block methods ----
+
+    async def get_tip(self) -> BlockHeader:
+        """Returns current chain tip."""
+        data = await self._call("blockchain.headers.subscribe")
+        return BlockHeader.parse_obj(data)
+
+    async def get_height(self) -> int:
+        """Returns the current best block height."""
+        return (await self.get_tip()).height
+
+    async def get_block_header(
+        self, height: int, cp_height: int = 0
+    ) -> str | BlockHeaderProof:
+        data = await self._call("blockchain.block.header", [height, cp_height])
+        if isinstance(data, dict):
+            return BlockHeaderProof.parse_obj(data)
+        return data
+
+    async def get_block_headers(
+        self, start_height: int, count: int, cp_height: int = 0
+    ) -> BlockHeaders:
+        data = await self._call(
+            "blockchain.block.headers", [start_height, count, cp_height]
+        )
+        return BlockHeaders.parse_obj(data)
+
+    # ---- fee methods ----
+
+    async def estimate_fee(self, num_blocks: int) -> float:
+        """Returns estimated fee rate in BTC/kB for confirmation within num_blocks."""
+        return await self._call("blockchain.estimatefee", [num_blocks])
+
+    async def fee_histogram(self) -> list[FeeHistogramEntry]:
+        """Returns mempool fee histogram as FeeHistogramEntry(fee_rate, vsize) list."""
+        data = await self._call("mempool.get_fee_histogram")
+        return [FeeHistogramEntry(fee_rate=r[0], vsize=r[1]) for r in data]

lnbits/utils/exchange_rates.py

@@ -289,7 +289,32 @@ async def btc_rates(currency: str) -> list[tuple[str, float]]:
     return apply_trimmed_mean_filter(all_rates)
 
 
+async def btc_price_from_aggregator(currency: str) -> float | None:
+    url = settings.lnbits_price_aggregator_url.rstrip("/")
+    try:
+        headers = {"User-Agent": settings.user_agent}
+        async with httpx.AsyncClient(headers=headers) as client:
+            r = await client.get(f"{url}/rate/{currency.upper()}", timeout=3)
+            r.raise_for_status()
+            data = r.json()
+            median = data.get("rates", {}).get("median")
+            if median:
+                return float(median)
+    except Exception as e:
+        logger.warning(f"Failed to fetch price from aggregator {url}: {e}")
+    return None
+
+
 async def btc_price(currency: str) -> float:
+    if (
+        settings.lnbits_price_aggregator_enabled
+        and settings.lnbits_price_aggregator_url
+    ):
+        price = await btc_price_from_aggregator(currency)
+        if price:
+            return price
+        logger.warning("Price aggregator failed, falling back to exchange providers.")
+
     rates = await btc_rates(currency)
     if not rates:
         logger.warning("Could not fetch any Bitcoin price.")

lnbits/utils/logger.py

@@ -41,19 +41,16 @@ def log_server_info():
 
 def initialize_server_websocket_logger() -> Callable:
     super_user_hash = sha256(settings.super_user.encode("utf-8")).hexdigest()
-
     serverlog_queue: asyncio.Queue = asyncio.Queue()
-
-    async def update_websocket_serverlog():
-        while settings.lnbits_running:
-            msg = await serverlog_queue.get()
-            await websocket_updater(super_user_hash, msg)
-
     logger.add(
         lambda msg: serverlog_queue.put_nowait(msg),
         format=Formatter().format,
     )
 
+    async def update_websocket_serverlog():
+        msg = await serverlog_queue.get()
+        await websocket_updater(super_user_hash, msg)
+
     return update_websocket_serverlog
 
 

lnbits/wallets/base.py

@@ -94,15 +94,15 @@ class PaymentStatus(NamedTuple):
 
 
 class PaymentSuccessStatus(PaymentStatus):
-    paid = True
+    paid = True  # type: ignore[reportIncompatibleVariableOverride]
 
 
 class PaymentFailedStatus(PaymentStatus):
-    paid = False
+    paid = False  # type: ignore[reportIncompatibleVariableOverride]
 
 
 class PaymentPendingStatus(PaymentStatus):
-    paid = None
+    paid = None  # type: ignore[reportIncompatibleVariableOverride]
 
 
 class Wallet(ABC):

lnbits/wallets/blink.py

@@ -8,7 +8,7 @@ from loguru import logger
 from pydantic import BaseModel
 from websockets import Subprotocol, connect
 
-from lnbits import bolt11
+from lnbits import bolt11 as bolt11_lib
 from lnbits.helpers import normalize_endpoint
 from lnbits.settings import settings
 
@@ -164,15 +164,13 @@ class BlinkWallet(Wallet):
                 ok=False, error_message=f"Unable to connect to {self.endpoint}."
             )
 
-    async def pay_invoice(
-        self, bolt11_invoice: str, fee_limit_msat: int
-    ) -> PaymentResponse:
+    async def pay_invoice(self, bolt11: str, fee_limit_msat: int) -> PaymentResponse:
         # https://dev.blink.sv/api/btc-ln-send
         # Future: add check fee estimate is < fee_limit_msat before paying invoice
 
         payment_variables = {
             "input": {
-                "paymentRequest": bolt11_invoice,
+                "paymentRequest": bolt11,
                 "walletId": self.wallet_id,
                 "memo": "Payment memo",
             }
@@ -190,7 +188,7 @@ class BlinkWallet(Wallet):
                 error_message = errors[0].get("message")
                 return PaymentResponse(ok=False, error_message=error_message)
 
-            checking_id = bolt11.decode(bolt11_invoice).payment_hash
+            checking_id = bolt11_lib.decode(bolt11).payment_hash
 
             payment_status = await self.get_payment_status(checking_id)
             fee_msat = payment_status.fee_msat
@@ -199,7 +197,7 @@ class BlinkWallet(Wallet):
                 ok=True, checking_id=checking_id, fee_msat=fee_msat, preimage=preimage
             )
         except Exception as exc:
-            logger.info(f"Failed to pay invoice {bolt11_invoice}")
+            logger.info(f"Failed to pay invoice {bolt11}")
             logger.warning(exc)
             return PaymentResponse(
                 error_message=f"Unable to connect to {self.endpoint}."

lnbits/wallets/breez.py

@@ -19,7 +19,7 @@ else:
 
     from bolt11 import Bolt11Exception
     from bolt11 import decode as bolt11_decode
-    from breez_sdk import (
+    from breez_sdk import (  # type: ignore[reportMissingImports]
         BreezEvent,
         ConnectRequest,
         EnvironmentType,
@@ -39,7 +39,9 @@ else:
         default_config,
         mnemonic_to_seed,
     )
-    from breez_sdk import PaymentStatus as BreezPaymentStatus
+    from breez_sdk import (
+        PaymentStatus as BreezPaymentStatus,  # type: ignore[reportMissingImports]
+    )
     from loguru import logger
 
     from lnbits.settings import settings

lnbits/wallets/breez_liquid.py

@@ -18,7 +18,7 @@ else:
     from pathlib import Path
 
     from bolt11 import decode as bolt11_decode
-    from breez_sdk_liquid import (
+    from breez_sdk_liquid import (  # type: ignore[reportMissingImports]
         ConnectRequest,
         EventListener,
         GetInfoResponse,

lnbits/wallets/fake.py

@@ -103,7 +103,7 @@ class FakeWallet(Wallet):
             preimage=preimage.hex(),
         )
 
-    async def pay_invoice(self, bolt11: str, _: int) -> PaymentResponse:
+    async def pay_invoice(self, bolt11: str, fee_limit_msat: int) -> PaymentResponse:
         try:
             invoice = decode(bolt11)
         except Bolt11Exception as exc:
@@ -130,7 +130,7 @@ class FakeWallet(Wallet):
             return PaymentPendingStatus()
         return PaymentFailedStatus()
 
-    async def get_payment_status(self, _: str) -> PaymentStatus:
+    async def get_payment_status(self, checking_id: str) -> PaymentStatus:
         return PaymentPendingStatus()
 
     async def paid_invoices_stream(self) -> AsyncGenerator[str, None]:

lnbits/wallets/lndgrpc.py

@@ -118,7 +118,7 @@ class LndWallet(Wallet):
 
         cert = open(cert_path, "rb").read()
         creds = grpc.ssl_channel_credentials(cert)
-        auth_creds = grpc.metadata_call_credentials(self.metadata_callback)
+        auth_creds = grpc.metadata_call_credentials(self.metadata_callback)  # type: ignore[reportArgumentType]
         composite_creds = grpc.composite_channel_credentials(creds, auth_creds)
         channel = grpc.aio.secure_channel(
             f"{self.endpoint}:{self.port}", composite_creds
@@ -192,6 +192,8 @@ class LndWallet(Wallet):
             fee_limit_msat=fee_limit_msat,
             timeout_seconds=30,
             no_inflight_updates=True,
+            max_parts=16,
+            time_pref=0.9,
         )
         try:
             res: Payment = await self.router_rpc.SendPaymentV2(req).read()

lnbits/wallets/lndrest.py

@@ -3,6 +3,7 @@ import base64
 import hashlib
 import json
 from collections.abc import AsyncGenerator
+from typing import Any
 
 import httpx
 from loguru import logger
@@ -123,8 +124,8 @@ class LndRestWallet(Wallet):
                 hashlib.sha256(unhashed_description).digest()
             ).decode("ascii")
 
-        preimage, _payment_hash = random_secret_and_hash()
-        _data["r_hash"] = base64.b64encode(bytes.fromhex(_payment_hash)).decode()
+        preimage, payment_hash = random_secret_and_hash()
+        _data["r_hash"] = base64.b64encode(bytes.fromhex(payment_hash)).decode()
         _data["r_preimage"] = base64.b64encode(bytes.fromhex(preimage)).decode()
 
         try:
@@ -132,34 +133,7 @@ class LndRestWallet(Wallet):
             r.raise_for_status()
             data = r.json()
 
-            if len(data) == 0:
-                return InvoiceResponse(ok=False, error_message="no data")
-
-            if "error" in data:
-                return InvoiceResponse(
-                    ok=False, error_message=f"""Server error: '{data["error"]}'"""
-                )
-
-            if r.is_error:
-                return InvoiceResponse(
-                    ok=False, error_message=f"Server error: '{r.text}'"
-                )
-
-            if "payment_request" not in data or "r_hash" not in data:
-                return InvoiceResponse(
-                    ok=False, error_message="Server error: 'missing required fields'"
-                )
-
-            payment_request = data["payment_request"]
-            payment_hash = base64.b64decode(data["r_hash"]).hex()
-            checking_id = payment_hash
-            return InvoiceResponse(
-                ok=True,
-                checking_id=checking_id,
-                payment_request=payment_request,
-                preimage=preimage,
-            )
-
+            return self._parse_create_invoice_response(r, data, preimage)
         except json.JSONDecodeError:
             return InvoiceResponse(
                 ok=False, error_message="Server error: 'invalid json response'"
@@ -242,12 +216,13 @@ class LndRestWallet(Wallet):
             logger.warning(f"Error getting invoice status: {e}")
             return PaymentPendingStatus()
 
-        if r.is_error or data.get("settled") is None:
+        if r.is_error or data.get("state") is None:
             # this must also work when checking_id is not a hex recognizable by lnd
-            # it will return an error and no "settled" attribute on the object
+            # it will return an error and no "state" attribute on the object
+            logger.warning(f"Error checking invoice from LND REST API: {r.text}")
             return PaymentPendingStatus()
 
-        if data.get("settled") is True:
+        if data.get("state") == "SETTLED":
             return PaymentSuccessStatus()
 
         if data.get("state") == "CANCELED":
@@ -264,10 +239,11 @@ class LndRestWallet(Wallet):
                 "ascii"
             )
         except ValueError:
+            logger.warning("Invalid checking_id format, must be hex: {checking_id}")
             return PaymentPendingStatus()
 
         url = f"/v2/router/track/{checking_id}"
-        async with self.client.stream("GET", url, timeout=None) as r:
+        async with self.client.stream("GET", url, timeout=30) as r:
             async for json_line in r.aiter_lines():
                 try:
                     line = json.loads(json_line)
@@ -298,7 +274,7 @@ class LndRestWallet(Wallet):
                     return PaymentFailedStatus()
                 elif status == "IN_FLIGHT":
                     logger.info(f"LNDRest Payment in flight: {checking_id}")
-                    return PaymentPendingStatus()
+                    continue
 
         logger.info(f"LNDRest Payment non-existent: {checking_id}")
         return PaymentPendingStatus()
@@ -311,13 +287,12 @@ class LndRestWallet(Wallet):
                     async for line in r.aiter_lines():
                         try:
                             inv = json.loads(line)["result"]
-                            if not inv["settled"]:
+                            if not inv.get("state") == "SETTLED":
                                 continue
+                            payment_hash = base64.b64decode(inv.get("r_hash")).hex()
                         except Exception as exc:
                             logger.debug(exc)
                             continue
-
-                        payment_hash = base64.b64decode(inv["r_hash"]).hex()
                         yield payment_hash
             except Exception as exc:
                 logger.warning(
@@ -363,8 +338,6 @@ class LndRestWallet(Wallet):
             return InvoiceResponse(ok=False, error_message=str(exc))
 
         payment_request = data["payment_request"]
-        payment_hash = base64.b64encode(bytes.fromhex(payment_hash)).decode("ascii")
-
         return InvoiceResponse(
             ok=True, checking_id=payment_hash, payment_request=payment_request
         )
@@ -399,3 +372,31 @@ class LndRestWallet(Wallet):
         except Exception as exc:
             logger.warning(exc)
             return InvoiceResponse(ok=False, error_message=str(exc))
+
+    def _parse_create_invoice_response(
+        self, r: Any, data: dict, preimage: str
+    ) -> InvoiceResponse:
+        if not data:
+            return InvoiceResponse(ok=False, error_message="no data")
+        if "error" in data:
+            return InvoiceResponse(
+                ok=False, error_message=f"Server error: '{data['error']}'"
+            )
+        if r.is_error:
+            return InvoiceResponse(ok=False, error_message=f"Server error: '{r.text}'")
+        if "payment_request" not in data or "r_hash" not in data:
+            return InvoiceResponse(
+                ok=False, error_message="Server error: 'missing required fields'"
+            )
+        try:
+            payment_hash = base64.b64decode(data["r_hash"]).hex()
+        except Exception:
+            return InvoiceResponse(
+                ok=False, error_message=f"Unable to b64decode to {data['r_hash']}."
+            )
+        return InvoiceResponse(
+            ok=True,
+            checking_id=payment_hash,
+            payment_request=data["payment_request"],
+            preimage=preimage,
+        )