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-rw-r--r--mail/src/leap/mail/imap/fetch.py21
1 files changed, 20 insertions, 1 deletions
diff --git a/mail/src/leap/mail/imap/fetch.py b/mail/src/leap/mail/imap/fetch.py
index 0a71f53..a776ac7 100644
--- a/mail/src/leap/mail/imap/fetch.py
+++ b/mail/src/leap/mail/imap/fetch.py
@@ -40,6 +40,7 @@ from leap.common.events.events_pb2 import IMAP_MSG_DECRYPTED
from leap.common.events.events_pb2 import IMAP_MSG_SAVED_LOCALLY
from leap.common.events.events_pb2 import IMAP_MSG_DELETED_INCOMING
from leap.common.events.events_pb2 import IMAP_UNREAD_MAIL
+from leap.mail.utils import get_email_charset
logger = logging.getLogger(__name__)
@@ -296,12 +297,17 @@ class LeapIncomingMail(object):
Tries to decrypt a gpg message if data looks like one.
:param data: the text to be decrypted.
- :type data: str
+ :type data: unicode
:return: data, possibly descrypted.
:rtype: str
"""
+ leap_assert_type(data, unicode)
+
parser = Parser()
+ encoding = get_email_charset(data)
+ data = data.encode(encoding)
origmsg = parser.parsestr(data)
+
# handle multipart/encrypted messages
if origmsg.get_content_type() == 'multipart/encrypted':
# sanity check
@@ -320,13 +326,21 @@ class LeapIncomingMail(object):
"Multipart/encrypted messages' second body part should "
"have content type equal to 'octet-stream' (instead of "
"%s)." % payload[1].get_content_type())
+
# parse message and get encrypted content
pgpencmsg = origmsg.get_payload()[1]
encdata = pgpencmsg.get_payload()
+
# decrypt and parse decrypted message
decrdata = self._keymanager.decrypt(
encdata, self._pkey,
passphrase=self._soledad.passphrase)
+ try:
+ decrdata = decrdata.encode(encoding)
+ except (UnicodeEncodeError, UnicodeDecodeError) as e:
+ logger.error("Unicode error {0}".format(e))
+ decrdata = decrdata.encode(encoding, 'replace')
+
decrmsg = parser.parsestr(decrdata)
# replace headers back in original message
for hkey, hval in decrmsg.items():
@@ -335,6 +349,7 @@ class LeapIncomingMail(object):
origmsg.replace_header(hkey, hval)
except KeyError:
origmsg[hkey] = hval
+
# replace payload by unencrypted payload
origmsg.set_payload(decrmsg.get_payload())
return origmsg.as_string(unixfrom=False)
@@ -352,6 +367,10 @@ class LeapIncomingMail(object):
# replace encrypted by decrypted content
data = data.replace(pgp_message, decrdata)
# if message is not encrypted, return raw data
+
+ if isinstance(data, unicode):
+ data = data.encode(encoding, 'replace')
+
return data
def _add_message_locally(self, msgtuple):