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[preview] try guessing MIME type if server can not

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Makes webp/avif/jxl work on older servers with outdated mime databases.
Also makes it perform content sniffing for cases where file extensions
are totally wrong.
This commit is contained in:
nekk
2021-05-05 22:59:50 +03:00
committed by lovetox
parent 84b7ff9f14
commit 173bbcdc7c
1 changed files with 5 additions and 2 deletions
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7
url_image_preview/url_image_preview.py
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@@ -464,6 +464,9 @@ class UrlImagePreviewPlugin(GajimPlugin):
if preview.is_aes_encrypted: if preview.is_aes_encrypted:
data = aes_decrypt(preview, data) data = aes_decrypt(preview, data)
if preview.mime_type == 'application/octet-stream':
preview.mime_type = self._guess_mime_type(preview.orig_path, data)
write_file_async(preview.orig_path, write_file_async(preview.orig_path,
data, data,
self._on_orig_write_finished, self._on_orig_write_finished,
@@ -505,11 +508,11 @@ class UrlImagePreviewPlugin(GajimPlugin):
self._update_textview(preview, pixbuf) self._update_textview(preview, pixbuf)
@staticmethod @staticmethod
def _guess_mime_type(file_path): def _guess_mime_type(file_path, data=None):
mime_type, _ = mimetypes.MimeTypes().guess_type(str(file_path)) mime_type, _ = mimetypes.MimeTypes().guess_type(str(file_path))
if mime_type is None: if mime_type is None:
# Try to guess MIME type by file name # Try to guess MIME type by file name
mime_type, _ = Gio.content_type_guess(str(file_path), None) mime_type, _ = Gio.content_type_guess(str(file_path), data)
log.debug('Guessed MIME type: %s', str(mime_type)) log.debug('Guessed MIME type: %s', str(mime_type))
return mime_type return mime_type