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Always return a thumbnail of the requested size.

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Before, we returned a thumbnail that was at least as big (if possible)
as the requested size. Now, if we don't have a thumbnail of the given
size we generate (and persist) one of that size.
This commit is contained in:
Erik Johnston 2015-07-23 14:12:49 +01:00
parent 6886bba988
commit ff7c2e41de
2 changed files with 162 additions and 2 deletions
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83
synapse/rest/media/v1/base_resource.py
View file

@ -225,6 +225,89 @@ class BaseMediaResource(Resource):
else:
return ()
@defer.inlineCallbacks
def _generate_local_exact_thumbnail(self, media_id, t_width, t_height,
t_method, t_type):
input_path = self.filepaths.local_media_filepath(media_id)
def thumbnail():
thumbnailer = Thumbnailer(input_path)
m_width = thumbnailer.width
m_height = thumbnailer.height
if m_width * m_height >= self.max_image_pixels:
logger.info(
"Image too large to thumbnail %r x %r > %r",
m_width, m_height, self.max_image_pixels
)
return
t_path = self.filepaths.local_media_thumbnail(
media_id, t_width, t_height, t_type, t_method
)
self._makedirs(t_path)
if t_method == "crop":
t_len = thumbnailer.crop(t_path, t_width, t_height, t_type)
elif t_method == "scale":
t_len = thumbnailer.scale(t_path, t_width, t_height, t_type)
else:
t_len = None
return t_len, t_path
res = yield threads.deferToThread(thumbnail)
if res:
t_len, t_path = res
yield self.store.store_local_thumbnail(
media_id, t_width, t_height, t_type, t_method, t_len
)
defer.returnValue(t_path)
@defer.inlineCallbacks
def _generate_remote_exact_thumbnail(self, server_name, file_id, media_id,
t_width, t_height, t_method, t_type):
input_path = self.filepaths.remote_media_filepath(server_name, file_id)
def thumbnail():
thumbnailer = Thumbnailer(input_path)
m_width = thumbnailer.width
m_height = thumbnailer.height
if m_width * m_height >= self.max_image_pixels:
logger.info(
"Image too large to thumbnail %r x %r > %r",
m_width, m_height, self.max_image_pixels
)
return
t_path = self.filepaths.remote_media_thumbnail(
media_id, t_width, t_height, t_type, t_method
)
self._makedirs(t_path)
if t_method == "crop":
t_len = thumbnailer.crop(t_path, t_width, t_height, t_type)
elif t_method == "scale":
t_len = thumbnailer.scale(t_path, t_width, t_height, t_type)
else:
t_len = None
return t_path, t_len
res = yield threads.deferToThread(thumbnail)
if res:
t_path, t_len = res
yield self.store.store_remote_media_thumbnail(
server_name, media_id, file_id,
t_width, t_height, t_type, t_method, t_len
)
defer.returnValue(t_path)
@defer.inlineCallbacks
def _generate_local_thumbnails(self, media_id, media_info):
media_type = media_info["media_type"]