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-rw-r--r--mail/src/leap/mail/imap/server.py61
1 files changed, 61 insertions, 0 deletions
diff --git a/mail/src/leap/mail/imap/server.py b/mail/src/leap/mail/imap/server.py
index 3e10171..26d2001 100644
--- a/mail/src/leap/mail/imap/server.py
+++ b/mail/src/leap/mail/imap/server.py
@@ -60,6 +60,67 @@ class LEAPIMAPServer(imap4.IMAP4Server):
# populate the test account properly (and only once
# per session)
+ #############################################################
+ #
+ # Twisted imap4 patch to workaround bad mime rendering in TB.
+ # See https://leap.se/code/issues/6773
+ # and https://bugzilla.mozilla.org/show_bug.cgi?id=149771
+ # Still unclear if this is a thunderbird bug.
+ # TODO send this patch upstream
+ #
+ #############################################################
+
+ def spew_body(self, part, id, msg, _w=None, _f=None):
+ if _w is None:
+ _w = self.transport.write
+ for p in part.part:
+ if msg.isMultipart():
+ msg = msg.getSubPart(p)
+ elif p > 0:
+ # Non-multipart messages have an implicit first part but no
+ # other parts - reject any request for any other part.
+ raise TypeError("Requested subpart of non-multipart message")
+
+ if part.header:
+ hdrs = msg.getHeaders(part.header.negate, *part.header.fields)
+ hdrs = imap4._formatHeaders(hdrs)
+ _w(str(part) + ' ' + imap4._literal(hdrs))
+ elif part.text:
+ _w(str(part) + ' ')
+ _f()
+ return imap4.FileProducer(msg.getBodyFile()
+ ).beginProducing(self.transport
+ )
+ elif part.mime:
+ hdrs = imap4._formatHeaders(msg.getHeaders(True))
+
+ ###### PATCHED #####################################
+ _w(str(part) + ' ' + imap4._literal(hdrs + "\r\n"))
+ ###### END PATCHED #################################
+
+ elif part.empty:
+ _w(str(part) + ' ')
+ _f()
+ if part.part:
+ return imap4.FileProducer(msg.getBodyFile()
+ ).beginProducing(self.transport
+ )
+ else:
+ mf = imap4.IMessageFile(msg, None)
+ if mf is not None:
+ return imap4.FileProducer(mf.open()).beginProducing(self.transport)
+ return imap4.MessageProducer(msg, None, self._scheduler).beginProducing(self.transport)
+
+ else:
+ _w('BODY ' + imap4.collapseNestedLists([imap4.getBodyStructure(msg)]))
+
+ ##################################################################
+ #
+ # END Twisted imap4 patch to workaround bad mime rendering in TB.
+ # #6773
+ #
+ ##################################################################
+
def lineReceived(self, line):
"""
Attempt to parse a single line from the server.