Merged revisions 77517,77525 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
Merge adds an additional test for as_string with a maxheaderlen specified.
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r77517 | r.david.murray | 2010-01-16 00:15:17 -0500 (Sat, 16 Jan 2010) | 6 lines
Issue #1670765: Prevent email.generator.Generator from re-wrapping
headers in multipart/signed MIME parts, which fixes one of the sources of
invalid modifications to such parts by Generator. Patch and tests by
Martin von Gagern.
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r77525 | r.david.murray | 2010-01-16 11:08:32 -0500 (Sat, 16 Jan 2010) | 2 lines
Fix issue number in comment.
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diff --git a/Lib/email/generator.py b/Lib/email/generator.py
index e821d00..61521b8 100644
--- a/Lib/email/generator.py
+++ b/Lib/email/generator.py
@@ -215,6 +215,17 @@
print(file=self._fp)
self._fp.write(msg.epilogue)
+ def _handle_multipart_signed(self, msg):
+ # The contents of signed parts has to stay unmodified in order to keep
+ # the signature intact per RFC1847 2.1, so we disable header wrapping.
+ # RDM: This isn't enough to completely preserve the part, but it helps.
+ old_maxheaderlen = self._maxheaderlen
+ try:
+ self._maxheaderlen = 0
+ self._handle_multipart(msg)
+ finally:
+ self._maxheaderlen = old_maxheaderlen
+
def _handle_message_delivery_status(self, msg):
# We can't just write the headers directly to self's file object
# because this will leave an extra newline between the last header