Fixed markdown escape characters appearing literally in plain text notifications.

owncastsentry/notification_service.py

@@ -11,7 +11,7 @@ from typing import List
 from mautrix.types import TextMessageEventContent, MessageType
 
 from .database import SubscriptionRepository
-from .utils import SECONDS_BETWEEN_NOTIFICATIONS, sanitize_for_markdown
+from .utils import SECONDS_BETWEEN_NOTIFICATIONS, sanitize_for_plain_text
 
 
 class NotificationService:
@@ -130,7 +130,7 @@ class NotificationService:
         """
         # Use name if available, fallback to domain
         stream_name = name if name else domain
-        safe_stream_name = sanitize_for_markdown(stream_name)
+        safe_stream_name = sanitize_for_plain_text(stream_name)
 
         # Choose message based on notification type
         if title_change:
@@ -140,7 +140,7 @@ class NotificationService:
 
         # Add title if present
         if title != "":
-            safe_title = sanitize_for_markdown(title)
+            safe_title = sanitize_for_plain_text(title)
             body_text += "\nStream Title: " + safe_title
 
         # Add stream URL
@@ -150,7 +150,7 @@ class NotificationService:
         if tags and len(tags) > 0:
             safe_tags = []
             for tag in tags:
-                safe_tag = sanitize_for_markdown(tag)
+                safe_tag = sanitize_for_plain_text(tag)
                 if safe_tag and not safe_tag.startswith('.'):
                     safe_tags.append(safe_tag)
 

owncastsentry/utils.py

@@ -157,6 +157,28 @@ def escape_markdown(text: str) -> str:
     return escaped_text
 
 
+def sanitize_for_plain_text(text: str) -> str:
+    """
+    Sanitize text for plain text rendering.
+
+    Removes newlines and normalizes whitespace without escaping special characters.
+    Use this for plain text notifications where escaping would show literal backslashes.
+
+    :param text: The text to sanitize
+    :return: Sanitized text
+    """
+    if not text:
+        return text
+
+    # Remove newlines and carriage returns to prevent multi-line injection
+    sanitized = text.replace('\n', ' ').replace('\r', ' ')
+
+    # Collapse multiple spaces into single space
+    sanitized = ' '.join(sanitized.split())
+
+    return sanitized
+
+
 def sanitize_for_markdown(text: str) -> str:
     """
     Sanitize text for safe Markdown rendering.