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10 Commits

Author SHA1 Message Date
Anders Kaseorg 14f0594795 upload: Replace exif_rotate with Pillow exif_transpose. 
Fixes #18599.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
 2021-08-09 20:32:19 -07:00
Daniel Bradburn 1e65cdd072 emoji: Only resize custom emoji that need it. 
This additional logic to prevent resizing is certain circumstances
(file size, dimensions) is necessary because the pillow gif handling
code seems to be rather flaky with regards to handling gif color
palletes, causing broken gifs after resizing.  The workaround is to
only resize when absolutely necessary (e.g. because the file is larger
than 128x128 or 128KB).

Fixes #10351.
 2019-01-29 10:33:50 -08:00
Harshit Bansal 45d50715c5 uploads: Return a HTTP 400 error for a decompression bomb attack. 
Fixes: #11215.
 2019-01-13 08:17:24 +00:00
Shubham Padia cd1233d3f7 upload: Add test jpg image with no exif data. 2018-05-31 08:08:59 -07:00
Shubham Padia 8b8a9be377 upload: Rotate image according to exif data when resizing avatar and emojis. 
Fixes the avatar/emoji part of #8177.

Does not address the issue with uploaded images, since we don't do
anything with them.

Also adds 3 images with different orientation exif tags to
test-images.
 2018-05-29 10:39:39 -07:00
Nikhil Kumar Mishra c96dc1652e test_upload: Add tests for `resize_emoji`. 2018-04-16 11:52:44 -07:00
Shubham Padia 13664f1289 uploads: Convert CMYK to RGB when saving avatar/realm icon as png. 
Fixes #8546.
PNG does not support CMYK mode. CMYK file is converted to RGB and
then saved as PNG.
 2018-03-02 12:57:22 -08:00
Eklavya Sharma 5ce80eb4ba Update types of images accepted as avatars. 
* Reject SVG in frontend because backend doesn't accept it.
* Add JPEG format in backend tests for avatar upload.
 2016-07-26 16:36:47 +05:30
Eklavya Sharma a2a8b54f6e Upgrade pillow. 
Update test images because pillow's resize algorithm has changed.
 2016-07-26 16:36:07 +05:30
Eklavya Sharma af7c3de5f5 Add SetAvatarTest to test_upload.py. 
Test multiple file uploads for /json/set_avatar.
Test no file upload for /json/set_avatar.
Add test images for SetAvatarTest.
 2016-04-20 12:23:22 +05:30