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markdown: Use re-exported guess_type to ensure adding EXTRA_MIME_TYPES.

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Signed-off-by: Anders Kaseorg <anders@zulip.com>
This commit is contained in:
Anders Kaseorg
2025-10-08 12:54:49 -07:00
committed by Tim Abbott
parent 66466760a0
commit b8f8056f56
2 changed files with 14 additions and 2 deletions
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3
zerver/lib/markdown/__init__.py
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@@ -1,7 +1,6 @@
# Zulip's main Markdown implementation. See docs/subsystems/markdown.md for
# detailed documentation on our Markdown syntax.
import logging
import mimetypes
import re
import time
from collections import deque
@@ -1032,7 +1031,7 @@ class InlineInterestingLinkProcessor(markdown.treeprocessors.Treeprocessor):
if not self.zmd.image_preview_enabled:
return False
url_type = mimetypes.guess_type(url)[0]
url_type = guess_type(url)[0]
# Support only video formats (containers) that are supported cross-browser and cross-device. As per
# https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Containers#index_of_media_container_formats_file_types
# MP4 and WebM are the only formats that are widely supported.