From 69fa70c743e6b046ec315dea58b960146b857556 Mon Sep 17 00:00:00 2001
From: Kosma Moczek <kosma@kosma.pl>
Date: Wed, 4 Mar 2026 16:47:28 +0100
Subject: [PATCH] proxy

---
 app.py           | 32 +++++++++++++++++++++++++++++---
 requirements.txt |  1 +
 2 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/app.py b/app.py
index a2b6113..ee9a8bc 100644
--- a/app.py
+++ b/app.py
@@ -5,10 +5,11 @@ import json
 import secrets
 from urllib.parse import urlencode
 
+import requests
 import yaml
 from cryptography.hazmat.primitives import serialization
 from cryptography.hazmat.primitives.asymmetric import padding, rsa
-from flask import Flask, redirect, render_template, request, session
+from flask import Flask, redirect, render_template, request, Response, session
 
 parser = argparse.ArgumentParser()
 parser.add_argument("config", help="Path to configuration file")
@@ -39,7 +40,7 @@ def authorize():
     session["nonce"] = nonce
 
     params = {
-        "auth_redirect": config["redirect_url"],
+        "auth_redirect": config["app_url"] + "/callback",
         "application_name": config["application_name"],
         "scopes": "read",
         "client_id": client_id,
@@ -71,7 +72,7 @@ def callback():
 
     key = response["key"]
     calendar_url = (
-        f"{config['forum_url']}/discourse-post-event/events.ics?"
+        f"{config['app_url']}/calendar?"
         + urlencode({"order": "desc", "api_key": key})
     )
 
@@ -81,6 +82,31 @@ def callback():
         calendar_url=calendar_url,
     )
 
+@app.route("/calendar")
+def calendar():
+    params = request.args.to_dict()
+    user_api_key = params.pop('user_api_key', None)
+    if not user_api_key:
+        return {"error": "Missing user_api_key parameter"}, 400
+
+    calendar_url = config['forum_url'] + "/discourse-post-event/events.ics"
+
+    headers = {
+        'User-Api-Key': user_api_key
+    }
+
+    try:
+        response = requests.get(calendar_url, params=params, headers=headers)
+
+        return Response(
+            response.content,
+            status=response.status_code,
+            content_type=response.headers.get('Content-Type')
+        )
+
+    except requests.exceptions.RequestException as e:
+        return {"error": f"Backend connection failed: {str(e)}"}, 502
+
 
 if __name__ == "__main__":
     app.run(host="0.0.0.0", port=8000)
diff --git a/requirements.txt b/requirements.txt
index f1a9e39..f608730 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 flask
 cryptography
 pyyaml
+requests