Add debug version of simple webhook-server

.gitignore

@@ -1,3 +1,5 @@
+config.yml
+
 # Created by https://www.gitignore.io/api/python,pycharm,virtualenv
 # Edit at https://www.gitignore.io/?templates=python,pycharm,virtualenv
 

requirements.txt

@@ -0,0 +1,3 @@
+PyYAML>=5.1,<6
+Flask>=1.1.1,<2
+matrix-client>=0.3.2,<0.4

wmn.py

@@ -0,0 +1,31 @@
+import yaml
+from flask import Flask, request, abort
+from matrix_client.client import MatrixClient
+
+app = Flask(__name__)
+
+with open("config.yml", 'r') as ymlfile:
+    cfg = yaml.safe_load(ymlfile)
+
+
+@app.route('/matrix')
+def notify():
+    channel = request.args.get('channel')
+    if channel is None or len(channel) == 0:
+        abort(401)
+    print(f"[DEBUG] Channel: {channel}")
+    gitlab_token = request.headers.get('X-Gitlab-Token')
+    if gitlab_token is None or len(gitlab_token) == 0 or gitlab_token != cfg['secret']:
+        abort(403)
+    print("[DEBUG] Correct secret")
+
+    server = cfg["matrix"]["server"]
+    client = MatrixClient(server)
+    client.login(username=cfg["matrix"]["username"], password=cfg["matrix"]["password"])
+    print(f"[DEBUG] Connected to matrix server {server}")
+
+    room = client.join_room(room_id_or_alias=channel)
+    room.send_text("Hello!")
+    print(f"[DEBUG] Sent text to channel {room}")
+
+    return ""