fix: custom stylesheet and js are not loaded after OIDC authentication

docs/framework/authentication.mdx

@@ -9,6 +9,10 @@ The Writer Framework authentication module allows you to restrict access to your
   trigger authentication for certain pages exclusively.
 </Warning>
 
+<Warning>
+  Static assets from Writer Framework exposed through `/static` and `/extensions` endpoints are not protected behind Authentication.
+</Warning>
+
 ## Use Basic Auth
 
 Basic Auth is a simple authentication method that uses a username and password. Authentication configuration is done in the [server_setup.py module](/framework/custom-server).
@@ -134,6 +138,21 @@ writer.serve.register_auth(oidc)
 
 <img src="/framework/images/authentication_oidc.png" />
 
+### App static assets
+
+Static assets in your application are inaccessible. You can use the `app_static_public` parameter to allow their usage.
+When `app_static_public` is set to `True`, the static assets in your application are accessible without authentication.
+
+```python
+oidc = writer.auth.Auth0(
+	client_id="xxxxxxx",
+	client_secret="xxxxxxxxxxxxx",
+	domain="xxx-xxxxx.eu.auth0.com",
+	host_url=os.getenv('HOST_URL', "http://localhost:5000"),
+	app_static_public=True
+)
+```
+
 ## User information in event handler
 
 When the `user_info` route is configured, user information will be accessible

src/writer/auth.py

@@ -176,6 +176,7 @@ class Oidc(Auth):
     scope: str = "openid email profile"
     callback_authorize: str = "authorize"
     url_userinfo: Optional[str] = None
+    app_static_public: bool = False
 
     authlib: OAuth2Session = None
     callback_func: Optional[Callable[[Request, str, dict], None]] = None # Callback to validate user authentication
@@ -191,14 +192,25 @@ def register(self,
         redirect_url = urljoin(self.host_url, self.callback_authorize)
         host_url_path = urlpath(self.host_url)
         callback_authorize_path = urljoin(host_url_path, self.callback_authorize)
-        static_assets_path = urljoin(host_url_path, "static")
+
+        auth_authorized_prefix_paths = []
+        auth_authorized_routes = [callback_authorize_path]
+
+        for asset_path in writer.serve.wf_root_static_assets():
+            if asset_path.is_file():
+                auth_authorized_routes.append(urljoin(host_url_path, asset_path.name))
+            elif asset_path.is_dir():
+                auth_authorized_prefix_paths.append(urljoin(host_url_path, asset_path.name))
+
+        if self.app_static_public is True:
+            auth_authorized_prefix_paths += [urljoin(host_url_path, "static"), urljoin(host_url_path, "extensions")]
 
         logger.debug(f"[auth] oidc - url redirect: {redirect_url}")
         logger.debug(f"[auth] oidc - endpoint authorize: {self.url_authorize}")
         logger.debug(f"[auth] oidc - endpoint token: {self.url_oauthtoken}")
         logger.debug(f"[auth] oidc - path: {host_url_path}")
-        logger.debug(f"[auth] oidc - authorize path: {callback_authorize_path}")
-        logger.debug(f"[auth] oidc - static asset path: {static_assets_path}")
+        logger.debug(f"[auth] oidc - auth authorized routes: {auth_authorized_routes}")
+        logger.debug(f"[auth] oidc - auth authorized prefix paths: {auth_authorized_prefix_paths}")
         self.authlib = OAuth2Session(
             client_id=self.client_id,
             client_secret=self.client_secret,
@@ -215,7 +227,8 @@ def register(self,
         async def oidc_middleware(request: Request, call_next):
             session = request.cookies.get('session')
 
-            if session is not None or request.url.path in [callback_authorize_path] or request.url.path.startswith(static_assets_path):
+            is_one_of_url_prefix_allowed = any(request.url.path.startswith(url_prefix) for url_prefix in auth_authorized_prefix_paths)
+            if session is not None or request.url.path in auth_authorized_routes or is_one_of_url_prefix_allowed:
                 response: Response = await call_next(request)
                 return response
             else:
@@ -259,7 +272,7 @@ async def route_callback(request: Request):
                     })
 
 
-def Google(client_id: str, client_secret: str, host_url: str) -> Oidc:
+def Google(client_id: str, client_secret: str, host_url: str, app_static_public = False) -> Oidc:
     """
     Configure Google Social login configured through Client Id for Web application in Google Cloud Console.
 
@@ -269,16 +282,19 @@ def Google(client_id: str, client_secret: str, host_url: str) -> Oidc:
     :param client_id: client id of Web application
     :param client_secret: client secret of Web application
     :param host_url: The URL of the Writer Framework application (for callback)
+    :param app_static_public: authorizes the exposure of the user's static assets (/static and /extensions)
     """
     return Oidc(
         client_id=client_id,
         client_secret=client_secret,
         host_url=host_url,
         url_authorize="https://accounts.google.com/o/oauth2/auth",
         url_oauthtoken="https://oauth2.googleapis.com/token",
-        url_userinfo="https://www.googleapis.com/oauth2/v1/userinfo?alt=json")
+        url_userinfo="https://www.googleapis.com/oauth2/v1/userinfo?alt=json",
+        app_static_public=app_static_public
+    )
 
-def Github(client_id: str, client_secret: str, host_url: str) -> Oidc:
+def Github(client_id: str, client_secret: str, host_url: str, app_static_public = False) -> Oidc:
     """
     Configure Github authentication.
 
@@ -288,16 +304,20 @@ def Github(client_id: str, client_secret: str, host_url: str) -> Oidc:
     :param client_id: client id
     :param client_secret: client secret
     :param host_url: The URL of the Writer Framework application (for callback)
+    :param app_static_public: authorizes the exposure of the user's static assets (/static and /extensions)
     """
+
     return Oidc(
         client_id=client_id,
         client_secret=client_secret,
         host_url=host_url,
         url_authorize="https://github.com/login/oauth/authorize",
         url_oauthtoken="https://github.com/login/oauth/access_token",
-        url_userinfo="https://api.github.com/user")
+        url_userinfo="https://api.github.com/user",
+        app_static_public=app_static_public
+    )
 
-def Auth0(client_id: str, client_secret: str, domain: str, host_url: str) -> Oidc:
+def Auth0(client_id: str, client_secret: str, domain: str, host_url: str, app_static_public = False) -> Oidc:
     """
     Configure Auth0 application for authentication.
 
@@ -308,14 +328,18 @@ def Auth0(client_id: str, client_secret: str, domain: str, host_url: str) -> Oid
     :param client_secret: client secret
     :param domain: Domain of the Auth0 application
     :param host_url: The URL of the Writer Framework application (for callback)
+    :param app_static_public: authorizes the exposure of the user's static assets (/static and /extensions)
     """
+
     return Oidc(
         client_id=client_id,
         client_secret=client_secret,
         host_url=host_url,
         url_authorize=f"https://{domain}/authorize",
         url_oauthtoken=f"https://{domain}/oauth/token",
-        url_userinfo=f"https://{domain}/userinfo")
+        url_userinfo=f"https://{domain}/userinfo",
+        app_static_public=app_static_public
+    )
 
 def urlpath(url: str):
     """

src/writer/serve.py

@@ -9,7 +9,7 @@
 import typing
 from contextlib import asynccontextmanager
 from importlib.machinery import ModuleSpec
-from typing import Any, Callable, Dict, List, Optional, Set, Union, cast
+from typing import Any, Callable, Dict, List, Literal, Optional, Set, Tuple, Union, cast
 from urllib.parse import urlsplit
 
 import uvicorn
@@ -593,7 +593,7 @@ def _mount_server_static_path(app: FastAPI, server_static_path: pathlib.Path) ->
     Writer Framework routes remain priority. A developer cannot come and overload them.
     """
     app.get('/')(lambda: FileResponse(server_static_path.joinpath('index.html')))
-    for f in server_static_path.glob('*'):
+    for f in wf_root_static_assets():
         if f.is_file():
             app.get(f"/{f.name}")(lambda: FileResponse(f))
         if f.is_dir():
@@ -613,3 +613,22 @@ def _execute_server_setup_hook(user_app_path: str) -> None:
 
 def app_runner(asgi_app: WriterFastAPI) -> AppRunner:
     return asgi_app.state.app_runner
+
+
+def wf_root_static_assets() -> List[pathlib.Path]:
+    """
+    Lists the root writer Framework static assets. Some of them are files, some other are directories.
+
+    >>> for f in wf_root_static_assets()
+    >>>     print(f"{f.name}")
+    >>>     # favicon.ico
+    >>>     # assets
+
+    """
+    all_static_assets: List[pathlib.Path] = []
+    server_path = pathlib.Path(__file__)
+    server_static_path = server_path.parent / "static"
+    for f in server_static_path.glob('*'):
+        all_static_assets.append(f)
+
+    return all_static_assets