add possibility to turn off new registrations (#2017)

with LNBITS_ALLOW_NEW_ACCOUNTS=false

while keeping existing users functional (i.e. no allowlist for existing users)

lnbits/core/templates/core/index.html

@@ -3,6 +3,7 @@
 {% endblock %} {% block page %}
 <div class="row q-col-gutter-md justify-center">
   <div class="col-12 col-md-7 col-lg-6 q-gutter-y-md">
+    {% if lnurl or LNBITS_NEW_ACCOUNTS_ALLOWED %}
     <q-card>
       <q-card-section>
         {% if lnurl %}
@@ -14,7 +15,7 @@
           href="{{ url_for('core.lnurlwallet') }}?lightning={{ lnurl }}"
           v-text="$t('press_to_claim')"
         ></q-btn>
-        {% else %}
+        {% elif LNBITS_NEW_ACCOUNTS_ALLOWED %}
         <q-form @submit="createWallet" class="q-gutter-md">
           <q-input
             filled
@@ -33,6 +34,7 @@
         {% endif %}
       </q-card-section>
     </q-card>
+    {% endif %}
 
     <q-card>
       <q-card-section>

lnbits/core/views/api.py

@@ -172,7 +172,7 @@ async def api_create_wallet(
 
 @api_router.post("/api/v1/account", response_model=Wallet)
 async def api_create_account(data: CreateWallet) -> Wallet:
-    if len(settings.lnbits_allowed_users) > 0:
+    if not settings.new_accounts_allowed:
         raise HTTPException(
             status_code=HTTPStatus.BAD_REQUEST,
             detail="Account creation is disabled.",

lnbits/helpers.py

@@ -51,6 +51,7 @@ def template_renderer(additional_folders: Optional[List] = None) -> Jinja2Templa
     t.env.globals["LNBITS_THEME_OPTIONS"] = settings.lnbits_theme_options
     t.env.globals["LNBITS_QR_LOGO"] = settings.lnbits_qr_logo
     t.env.globals["LNBITS_VERSION"] = settings.version
+    t.env.globals["LNBITS_NEW_ACCOUNTS_ALLOWED"] = settings.new_accounts_allowed
     t.env.globals["LNBITS_ADMIN_UI"] = settings.lnbits_admin_ui
     t.env.globals["LNBITS_NODE_UI"] = (
         settings.lnbits_node_ui and get_node_class() is not None

lnbits/settings.py

@@ -35,6 +35,11 @@ class LNbitsSettings(BaseModel):
 class UsersSettings(LNbitsSettings):
     lnbits_admin_users: List[str] = Field(default=[])
     lnbits_allowed_users: List[str] = Field(default=[])
+    lnbits_allow_new_accounts: bool = Field(default=True)
+
+    @property
+    def new_accounts_allowed(self) -> bool:
+        return self.lnbits_allow_new_accounts and len(self.lnbits_allowed_users) == 0
 
 
 class ExtensionsSettings(LNbitsSettings):