Update app.py

app.py

@@ -120,7 +120,7 @@ def _escape_bare_ampersands(text: str) -> str:
         text
     )
 
-# ---------- Metadata Validator ----------
+# ---------- Metadata Validator (updated to handle non-XML gracefully) ----------
 def validate_metadata(metadata, admin_id=None):
     if not metadata.strip():
         return "No metadata provided.", "", ""
@@ -129,34 +129,27 @@ def validate_metadata(metadata, admin_id=None):
     issue = "Unknown"
     recommendation = "No recommendation found."
 
-    # Preview to logs for debugging
+    # Log a short preview to help diagnose pastes
     preview = metadata[:100].replace("\n", "\\n")
     log_to_console({"preview": preview}, "Metadata Input Preview")
 
     # Clean typical paste artefacts
     cleaned = _strip_code_fences(metadata).lstrip("\ufeff").strip()
 
-    # Quick non-XML guard
-    if "<" not in cleaned or ">" not in cleaned:
+    # Only treat as XML if the first non-space character is '<'
+    if not cleaned or not cleaned.lstrip().startswith("<"):
         issue = "Invalid Input (Not XML)"
         recommendation = (
             "Please paste Salesforce metadata XML (starts with '<'). Example:\n"
             "<CustomField xmlns=\"http://soap.sforce.com/2006/04/metadata\">...</CustomField>"
         )
     else:
-        # If leading junk before first '<', cut it
-        if cleaned and not cleaned.lstrip().startswith("<"):
-            idx = cleaned.find("<")
-            if idx != -1:
-                cleaned = cleaned[idx:].strip()
-
-        # Escape stray ampersands
+        # Escape stray ampersands (common XML error)
         cleaned = _escape_bare_ampersands(cleaned)
 
-        # Try to parse
         try:
             root = ET.fromstring(cleaned)
-            # Find <description> regardless of namespace
+            # Detect <description> regardless of namespace
             has_description = any(
                 elem.tag.split('}')[-1].lower() == "description"
                 for elem in root.iter()
@@ -176,7 +169,7 @@ def validate_metadata(metadata, admin_id=None):
             issue = "Validation Error"
             recommendation = f"Unexpected error while validating metadata: {str(e)}"
 
-    # Log to Salesforce
+    # Log to Salesforce (unchanged)
     log_data = {
         "Name": f"MetadataLog_{mtype}",
         "MetadataType__c": mtype,
@@ -184,7 +177,6 @@ def validate_metadata(metadata, admin_id=None):
         "Recommendation__c": recommendation,
         "Status__c": "Open"
     }
-
     if admin_id:
         log_data["Admin__c"] = admin_id