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Fix list out of bounds error in mail message parsing

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Check list length before accessing the first two elements of
'dispositions'.
The list may have only a single element ('inline') or may be empty in
mailformed emails.
This commit is contained in:
Erik Arvstedt 2018-05-11 14:01:11 +02:00
parent 4babfa1a5b
commit ea287e0db2
1 changed files with 3 additions and 2 deletions
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5
src/documents/mail.py
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@ -75,8 +75,9 @@ class Message(Loggable):
continue
dispositions = content_disposition.strip().split(";")
if not dispositions[0].lower() == "attachment" and \
"filename" not in dispositions[1].lower():
if len(dispositions) < 2 or \
(not dispositions[0].lower() == "attachment" and
"filename" not in dispositions[1].lower()):
continue
file_data = part.get_payload()