Enigmail / Bugs / #628 enigmail does not seem to parse last '=' in quoted-printable encoded encrypted/signed parts

#628 enigmail does not seem to parse last '=' in quoted-printable encoded encrypted/signed parts

Status: fixed

Owner: nobody

Labels: None

Found in Version: 1.9.4

Severity: Minor

Thunderbird version: 45.2.0

GnuPG version: 2.1.13

Operating System: All

Fixed in version: 1.9.5

Cc: nobody

Updated: 2016-08-20

Created: 2016-07-18

Creator: Gaute Hope

Private: No

Hi,

We have observed that encrypted quoted-printable parts (made with gmime) ending with an '=' does not seem to be completely parsed.

The final '=' is left in the part. Both verifying the signature and decrypting (in enigmail) works fine. After checking on our part if the encryption is correct, I believe that the final '=' should be parsed as valid quoted-printable and converted to a newline (or ignored).

Here is a screenshot of how a it looks in Enigmail: https://cloud.githubusercontent.com/assets/6170081/16922866/b743c458-4d17-11e6-9d85-ee55cb10429b.png

Best regards, Gaute

Discussion

Gaute Hope - 2016-07-18

Attachments has changed:

Diff:

--- old +++ new @@ -1 +0,0 @@ -astroid-compose-DWydbm (0 Bytes; application/octet-stream)
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Patrick Brunschwig - 2016-07-19

Can you please attach or upload a complete message including all headeers?

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Gaute Hope - 2016-07-19

Here is two messages, one only signed (which is displayed correctly in Thunderbird/Enigmail) and one encrypted which displays the extra '='. The content should be similar. I have encrypted it for your key: DB1187B9DD5F693B

test encrypted with QP.eml

test signed, un-encrypted with QP.eml

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Patrick Brunschwig - 2016-07-19

status: open --> fixed

Fixed in version: --- --> 2.0
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Patrick Brunschwig - 2016-07-19

Thanks for the messages. If a text/plain part ends with "=CRLF" then Thunderbird does not correctly decode the last line. Adding another CRLF before passing the decrypted data to Thunderbird, makes it decode the content correctly.

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Gaute Hope - 2016-07-19

Great, thanks for the quick response!

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Patrick Brunschwig - 2016-08-20

Fixed in version: 2.0 --> 1.9.5
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enigmail does not seem to parse last '=' in quoted-printable encoded...

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#628 enigmail does not seem to parse last '=' in quoted-printable encoded encrypted/signed parts

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