pass json as an encoding to avoid word-splitting errors

Author: qrkourier

.github/workflows/zhook.yml

@@ -71,17 +71,20 @@ jobs:
           set -o pipefail
           set -o xtrace
           
+          # Base64 encode JSON to avoid whitespace issues in env file
+          ENCODED_JSON=$(echo "${INPUT_EVENTJSON}" | base64 -w 0)
+          
           cat > /tmp/docker.env << EOF
-          INPUT_ZITIID="${INPUT_ZITIID}"
-          INPUT_WEBHOOKURL="${INPUT_WEBHOOKURL}"
-          INPUT_EVENTJSON="${INPUT_EVENTJSON}"
-          INPUT_SENDERUSERNAME="${INPUT_SENDERUSERNAME}"
-          INPUT_SENDERICONURL="${INPUT_SENDERICONURL}"
-          INPUT_ZITILOGLEVEL="${INPUT_ZITILOGLEVEL}"
-          GITHUB_WORKSPACE="${GITHUB_WORKSPACE}"
+          INPUT_ZITIID=${INPUT_ZITIID}
+          INPUT_WEBHOOKURL=${INPUT_WEBHOOKURL}
+          INPUT_EVENTJSON_B64=${ENCODED_JSON}
+          INPUT_SENDERUSERNAME=${INPUT_SENDERUSERNAME}
+          INPUT_SENDERICONURL=${INPUT_SENDERICONURL}
+          INPUT_ZITILOGLEVEL=${INPUT_ZITILOGLEVEL}
+          GITHUB_WORKSPACE=${GITHUB_WORKSPACE}
           EOF
           
-          # configure the kernel to write core dumps to the workspace directory that is writable by the container
+          # configure the kernel to write core dumps to the workspace directory that is writable by the container in case there is a segfault valgrind cannot catch in a vgcore.%p
           sudo sysctl -w kernel.core_pattern="${GITHUB_WORKSPACE}/core.%e.%p.%t"
 
           # build the action's container image so we can source it for the debug image

zhook.py

@@ -4,6 +4,7 @@
 import openziti
 import json
 import os
+import base64
 
 
 class MattermostWebhookBody:
@@ -351,7 +352,17 @@ def dumpJson(self):
 
 if __name__ == '__main__':
   url = os.getenv("INPUT_WEBHOOKURL")
-  eventJsonStr = os.getenv("INPUT_EVENTJSON")
+  
+  # Handle both base64-encoded and direct JSON input
+  eventJsonB64 = os.getenv("INPUT_EVENTJSON_B64")
+  if eventJsonB64:
+    try:
+      eventJsonStr = base64.b64decode(eventJsonB64).decode('utf-8')
+    except Exception as e:
+      print(f"Failed to decode base64 event JSON: {e}")
+      eventJsonStr = os.getenv("INPUT_EVENTJSON")
+  else:
+    eventJsonStr = os.getenv("INPUT_EVENTJSON")
   username = os.getenv("INPUT_SENDERUSERNAME")
   icon = os.getenv("INPUT_SENDERICONURL")
   actionRepo = os.getenv("GITHUB_ACTION_REPOSITORY")