Comments (3)
The problem might be not having python-magic
installed, and thus the bot sending the wrong mime type when uploading the file.
from xkcd.
Thanks for the suggestions @tulir.
After installing python-magic
(in the maubot python environment), I still have the same issue.
The image is uploaded correctly to the matrix media folder and I can see it correctly with a image viewing program.
Any clue how I could debug this issue?
from xkcd.
Hi, I had the same issue.
It seemed like the bot was uploading the PNG image as JSON data. I did a curl on the image uploaded by the bot:
HTTP/1.1 200 OK
[...]
Content-Type: application/json; charset=UTF-8
Content-Length: 51409
[...]
curling a different picture (uploaded by me) results in the correct content-type: image/png
This only happened on the image sent when using !xkcd
or !xkcd 2497
(as the current number) to get the latest image. When using !xkcd 1500
then the resulting image was displayed correctly.
I found that the row in media_cache of the bot database had an empty cell for mime_type.
I then deleted the media_cache row containing the file_name logic_gates.png (the broken image).
delete FROM "media_cache" where file_name = 'logic_gates.png'
After deleting the row I re-triggered the bot with !xkcd
and the image loaded fine.
NOTE: I installed python-magic mid-way through, so I don't remember if the second image was loaded correctly because of that. The broken image was still broken after that until I deleted the cache entry.
TL;DR: installed python-magic, deleted broken images (empty mime_type) from bot database via the web management tool.
from xkcd.
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