Add support for disabling the Gitea webhook secret

config/server.conf

@@ -46,6 +46,6 @@
 # false.
 # enabled=
 
-# The file for the Gitea webhook secret. Must be set if Gitea webhooks
-# are enabled.
+# The file for the Gitea webhook secret. Leave it empty to disable the
+# secret (warning: very insecure).
 # webhook_secret_file=

src/jcloud_deployment_server/api/config.py

@@ -20,6 +20,7 @@ import ipaddress
 import pathlib
 import logging
 import argparse
+from typing import Optional
 
 __all__ = [
     'load_config',
@@ -118,7 +119,7 @@ def process_host_and_port(
 @dataclass
 class GiteaConfig:
     enabled: bool
-    webhook_secret_file_path: pathlib.Path
+    webhook_secret_file_path: Optional[pathlib.Path]
 
 def _is_readable_file(path: pathlib.Path) -> bool:
     '''
@@ -161,8 +162,12 @@ def process_gitea_config(
     if configuration['gitea'].enabled not in ('true', 'yes', 't', 'y'):
         return GiteaConfig(False, None)
 
-    secret_file_path = pathlib.Path(configuration['gitea'].webhook_secret_file)
+    secret_file_path = configuration['gitea'].webhook_secret_file
 
+    if not secret_file_path: # disable secret
+        secret_file_path = None
+    else:
+        secret_file_path = pathlib.Path(secret_file_path)
         if not _is_readable_file(secret_file_path):
             logger.critical(f'{secret_file_path}: Cannot read Gitea webhook secret file')
             raise Fail(f'{secret_file_path}: Cannot read Gitea webhook secret file', exit_code = 2)