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Merge pull request #1537 from willsowerbutts/master

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Remove unexpected control codes from ICS files
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Peter Bieringer 2024-07-12 05:18:20 +02:00 • committed by GitHub
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6
radicale/item/__init__.py
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@ -49,6 +49,12 @@ def read_components(s: str) -> List[vobject.base.Component]:
s = re.sub(r"^(PHOTO(?:;[^:\r\n]*)?;ENCODING=b(?:;[^:\r\n]*)?:)"
r"data:[^;,\r\n]*;base64,", r"\1", s,
flags=re.MULTILINE | re.IGNORECASE)
# Workaround for bug with malformed ICS files containing control codes
# Filter out all control codes except those we expect to find:
# * 0x09 Horizontal Tab
# * 0x0A Line Feed
# * 0x0D Carriage Return
s = re.sub(r'[\x00-\x08\x0B\x0C\x0E-\x1F]', '', s)
return list(vobject.readComponents(s, allowQP=True))