[FEAT] Auth, Login, OAuth, create account with username and password #1653 (#2092)

no more superuser url!
delete cookie on logout
add usr login feature
fix node management
* Cleaned up login form
* CreateUser
* information leak
* cleaner parsing usr from url
* rename decorators
* login secret
* fix: add back `superuser` command
* chore: remove `fastapi_login`
* fix: extract `token` from cookie
* chore: prepare to extract user
* feat: check user
* chore: code clean-up
* feat: happy flow working
* fix: usr only login
* fix: user already logged in
* feat: check user in URL
* fix: verify password at DB level
* fix: do not show `Login` controls if user already logged in
* fix: separate login endpoints
* fix: remove `usr` param
* chore: update error message
* refactor: register method
* feat: logout
* chore: move comments
* fix: remove user auth check from API
* fix: user check unnecessary
* fix: redirect after logout
* chore: remove garbage files
* refactor: simplify constructor call
* fix: hide user icon if not authorized
* refactor: rename auth env vars
* chore: code clean-up
* fix: add types for `python-jose`
* fix: add types for `passlib`
* fix: return type
* feat: set default value for `auth_secret_key` to hash of super user
* fix: default value
* feat: rework login page
* feat: ui polishing
* feat: google auth
* feat: add google auth
* chore: remove `authlib` dependency
* refactor: extract `_handle_sso_login` method
* refactor: convert methods to `properties`
* refactor: rename: `user_api` to `auth_api`
* feat: store user info from SSO
* chore: re-arange the buttons
* feat: conditional rendering of login options
* feat: correctly render buttons
* fix: re-add `Claim Bitcoin` from the main page
* fix: create wallet must send new user
* fix:  no `username-password` auth method
* refactor: rename auth method
* fix: do not force API level UUID4 validation
* feat: add validation for username
* feat: add account page
* feat: update account
* feat: add `has_password` for user
* fix: email not editable
* feat: validate email for existing account
* fix: register check
* feat: reset password
* chore: code clean-up
* feat: handle token expired
* fix: only redirect if `text/html`
* refactor: remove `OAuth2PasswordRequestForm`
* chore: remove `python-multipart` dependency
* fix: handle no headers for exception
* feat: add back button on error screen
* feat: show user profile image
* fix: check account creation permissions
* fix: auth for internal api call
* chore: add some docs
* chore: code clean-up
* fix: rebase stuff
* fix: default value types
* refactor: customize error messages
* fix: move types libs to dev dependencies
* doc: specify the `Authorization callback URL`
* fix: pass missing superuser id in node ui test
* fix: keep usr param on wallet redirect
removing usr param causes an issue if the browser doesnt yet have an access token.
* fix: do not redirect if `wal` query param not present
* fix: add nativeBuildInputs and buildInputs overrides to flake.nix
* bump fastapi-sso to 0.9.0 which fixes some security issues
* refactor: move the `lnbits_admin_extensions` to decorators
* chore: bring package config from `dev`
* chore: re-add dependencies
* chore: re-add cev dependencies
* chore: re-add mypy ignores
* feat: i18n
* refactor: move admin ext check to decorator (fix after rebase)
* fix: label mapping
* fix: re-fetch user after first wallet was created
* fix: unlikely case that `user` is not found
* refactor translations (move '*' to code)
* reorganize deps in pyproject.toml, add comment
* update flake.lock and simplify flake.nix after upstreaming
overrides for fastapi-sso, types-passlib, types-pyasn1, types-python-jose
were upstreamed in https://github.com/nix-community/poetry2nix/pull/1463
* fix: more relaxed email verification (by @prusnak)
* fix: remove `\b` (boundaries) since we re using `fullmatch`
* chore: `make bundle`

---------

Co-authored-by: dni ⚡ <office@dnilabs.com>
Co-authored-by: Arc <ben@arc.wales>
Co-authored-by: jackstar12 <jkranawetter05@gmail.com>
Co-authored-by: Pavol Rusnak <pavol@rusnak.io>

lnbits/settings.py

@@ -4,6 +4,8 @@ import importlib
 import importlib.metadata
 import inspect
 import json
+from enum import Enum
+from hashlib import sha256
 from os import path
 from sqlite3 import Row
 from time import time
@@ -308,6 +310,45 @@ class EnvSettings(LNbitsSettings):
         return self.lnbits_extensions_path == "lnbits"
 
 
+class AuthMethods(Enum):
+    user_id_only = "user-id-only"
+    username_and_password = "username-password"
+    google_auth = "google-auth"
+    github_auth = "github-auth"
+
+
+class AuthSettings(LNbitsSettings):
+    auth_secret_key: str = Field(default="")
+    auth_token_expire_minutes: int = Field(default=30)
+    auth_allowed_methods: List[str] = Field(
+        default=[
+            AuthMethods.user_id_only.value,
+            AuthMethods.username_and_password.value,
+        ]
+    )
+
+    def is_auth_method_allowed(self, method: AuthMethods):
+        return method.value in self.auth_allowed_methods
+
+
+class GoogleAuthSettings(LNbitsSettings):
+    google_client_id: str = Field(default="")
+    google_client_secret: str = Field(default="")
+
+    @property
+    def is_google_auth_configured(self):
+        return self.google_client_id != "" and self.google_client_secret != ""
+
+
+class GitHubAuthSettings(LNbitsSettings):
+    github_client_id: str = Field(default="")
+    github_client_secret: str = Field(default="")
+
+    @property
+    def is_github_auth_configured(self):
+        return self.github_client_id != "" and self.github_client_secret != ""
+
+
 class SaaSSettings(LNbitsSettings):
     lnbits_saas_callback: Optional[str] = Field(default=None)
     lnbits_saas_secret: Optional[str] = Field(default=None)
@@ -356,6 +397,9 @@ class ReadOnlySettings(
     SaaSSettings,
     PersistenceSettings,
     SuperUserSettings,
+    AuthSettings,
+    GoogleAuthSettings,
+    GitHubAuthSettings,
 ):
     lnbits_admin_ui: bool = Field(default=False)
 
@@ -384,6 +428,14 @@ class Settings(EditableSettings, ReadOnlySettings, TransientSettings, BaseSettin
         case_sensitive = False
         json_loads = list_parse_fallback
 
+    def is_user_allowed(self, user_id: str):
+        return (
+            len(self.lnbits_allowed_users) == 0
+            or user_id in self.lnbits_allowed_users
+            or user_id in self.lnbits_admin_users
+            or user_id == self.super_user
+        )
+
 
 class SuperSettings(EditableSettings):
     super_user: str
@@ -432,6 +484,9 @@ settings = Settings()
 settings.lnbits_path = str(path.dirname(path.realpath(__file__)))
 
 settings.version = importlib.metadata.version("lnbits")
+settings.auth_secret_key = (
+    settings.auth_secret_key or sha256(settings.super_user.encode("utf-8")).hexdigest()
+)
 
 if not settings.user_agent:
     settings.user_agent = f"LNbits/{settings.version}"