New submission from Dmitry Shachnev <mity...@gmail.com>:
Trying to write a email-sending script with PGP-signing functionality, I
stumbled upon a problem (see [1]): it was impossible to sign mutlipart emails
(actually the signing was performed, but the verifying programs thought that
the signature is bad).
After comparing messages produced by email.generator and popular mail clients
(Evolution, KMail), I've found out that the mail clients always add line breaks
after ending boundaries.
The attached patch makes email.generator behave like all email clients. After
applying it, it's possible to sign even complicated mails like
"multipart/alternate with attachments".
An illustration:
--====1== # Part 1 (base message) begin
...
--====2== # Part 1.1 begin
...
--====2== # Part 1.2 begin
...
--====2==-- # Part 1 end
# There should be empty line here
--====1== # Part 2 (signature) begin
...
--====1==-- # End of the message
[1]:
http://stackoverflow.com/questions/10496902/pgp-signing-multipart-e-mails-with-python
----------
components: email
files: always_add_newlines.patch
keywords: patch
messages: 162126
nosy: barry, mitya57, r.david.murray
priority: normal
severity: normal
status: open
title: [patch] email.generator should always add newlines after closing
boundaries
type: behavior
versions: Python 3.2
Added file: http://bugs.python.org/file25798/always_add_newlines.patch
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue14983>
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