Allow unprivileged view

Closes: #101

web_view.py

@@ -28,11 +28,15 @@ app = flask.Flask(__name__)
 app.debug = False
 app.config.from_object("config.default")
 
-app.before_request(UniAuth.auth.require_authentication)
-
 agenda.error_mail.setup_error_mail(app)
 
 
+@app.before_request
+def handle_auth() -> None:
+    """Handle autentication and set global user."""
+    flask.g.user = UniAuth.auth.get_current_user()
+
+
 @app.errorhandler(werkzeug.exceptions.InternalServerError)
 def exception_handler(e: werkzeug.exceptions.InternalServerError) -> tuple[str, int]:
     """Handle exception."""
@@ -369,5 +373,18 @@ def auth_callback() -> tuple[str, int] | werkzeug.Response:
     return UniAuth.auth.auth_callback()
 
 
+@app.route("/login")
+def login() -> werkzeug.Response:
+    """Login."""
+    next_url = flask.request.args["next"]
+    return UniAuth.auth.redirect_to_login(next_url)
+
+
+@app.route("/logout")
+def logout() -> werkzeug.Response:
+    """Logout."""
+    return UniAuth.auth.redirect_to_logout(flask.request.args["next"])
+
+
 if __name__ == "__main__":
     app.run(host="0.0.0.0")