Merge branch 'bugfix/incomplete-url-sanitization-3291' into development

Author: Taaku18

core/utils.py

@@ -152,13 +152,17 @@ def is_image_url(url: str, **kwargs) -> str:
  bool
  Whether the URL is a valid image URL.
  """
- if url.startswith("https://gyazo.com") or url.startswith("http://gyazo.com"):
- # gyazo support
- url = re.sub(
- r"(http[s]?:\/\/)((?:[a-zA-Z]|[0-9]|[$-_@.&+]|[!*(),]|(?:%[0-9a-fA-F][0-9a-fA-F]))+)",
- r"\1i.\2.png",
- url,
- )
+ try:
+ result = parse.urlparse(url)
+ if result.netloc == 'gyazo.com' and result.scheme in ['http', 'https']:
+ # gyazo support
+ url = re.sub(
+ r"(https?://)((?:[a-zA-Z]|[0-9]|[$-_@.&+]|[!*(),]|%[0-9a-fA-F][0-9a-fA-F])+)",
+ r"\1i.\2.png",
+ url,
+ )
+ except ValueError:
+ pass
 
  return parse_image_url(url, **kwargs)