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Fix unparsing malformed entities, bump v1.10.10

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This commit is contained in:
Lonami Exo
2019-12-30 10:57:03 +01:00
parent be8838b5f8
commit d196c89825
6 changed files with 94 additions and 11 deletions
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8
telethon/extensions/html.py
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@@ -174,10 +174,12 @@ def unparse(text: str, entities: Iterable[TypeMessageEntity], _offset: int = 0,
# Otherwise we would end up with malformed text and fail to encode.
# For example of bad input: "Hi \ud83d\ude1c"
# https://en.wikipedia.org/wiki/UTF-16#U+010000_to_U+10FFFF
if '\ud800' <= text[relative_offset] <= '\udfff':
while (relative_offset < _length
and '\ud800' <= text[relative_offset] <= '\udfff'):
relative_offset += 1
if '\ud800' <= text[relative_offset + length] <= '\udfff':
while (relative_offset + length < _length
and '\ud800' <= text[relative_offset + length] <= '\udfff'):
length += 1
entity_text = unparse(text=text[relative_offset:relative_offset + length],
@@ -222,7 +224,7 @@ def unparse(text: str, entities: Iterable[TypeMessageEntity], _offset: int = 0,
skip_entity = True
last_offset = relative_offset + (0 if skip_entity else length)
if last_offset < len(text) and '\ud800' <= text[last_offset] <= '\udfff':
while last_offset < _length and '\ud800' <= text[last_offset] <= '\udfff':
last_offset += 1
html.append(escape(text[last_offset:]))