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Strip 0-length message entities

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Closes #3884.
This commit is contained in:
Lonami Exo 2022-09-20 13:12:01 +02:00
parent 7cac3668d6
commit 363c2604df
1 changed files with 7 additions and 2 deletions
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9
telethon/client/messageparse.py
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@ -87,10 +87,15 @@ class MessageParseMethods:
message, msg_entities = parse_mode.parse(message)
if original_message and not message and not msg_entities:
raise ValueError("Failed to parse message")
for i in reversed(range(len(msg_entities))):
e = msg_entities[i]
if isinstance(e, types.MessageEntityTextUrl):
if not e.length:
# 0-length MessageEntity is no longer valid #3884.
# Because the user can provide their own parser (with reasonable 0-length
# entities), strip them here rather than fixing the built-in parsers.
del msg_entities[i]
elif isinstance(e, types.MessageEntityTextUrl):
m = re.match(r'^@|\+|tg://user\?id=(\d+)', e.url)
if m:
user = int(m.group(1)) if m.group(1) else e.url