Don't use abort for cleaner errors

gitea_hooks/app.py

@@ -3,7 +3,7 @@ import hmac
 import hashlib
 import json
 from collections import defaultdict
-from flask import Flask, request, abort
+from flask import Flask, request
 from .conf import Configuration
 
 config = Configuration()
@@ -19,12 +19,12 @@ def webhook_receiver(hook_type):
     def inner(func):
         def wrapped(hook_name: str):
             if request.content_length is None or request.content_length > 32000:
-                abort(400)
+                return "Too much content", 400
             if request.content_type != "application/json":
                 return "Expected json", 415
 
             if hook_name not in relevant_hooks:
-                abort(404)
+                return "No such hook", 404
             hook_conf = relevant_hooks[hook_name]
 
             raw_payload: bytes = request.get_data(cache=False)
@@ -33,7 +33,7 @@ def webhook_receiver(hook_type):
                 hook_conf["secret"].encode("utf-8"), raw_payload, hashlib.sha256
             ).hexdigest()
             if not hmac.compare_digest(provided_sig, computed_sig):
-                abort(403)
+                return "Bad credentials", 403
 
             try:
                 payload = json.loads(raw_payload)