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Store URL cache preview downloads seperately

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This makes it easier to clear old media out at a later date
This commit is contained in:
Erik Johnston 2017-06-23 11:14:11 +01:00
parent e204062310
commit 7fe8ed1787
7 changed files with 94 additions and 20 deletions
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5
synapse/rest/media/v1/download_resource.py
View file

@ -73,6 +73,11 @@ class DownloadResource(Resource):
media_type = media_info["media_type"]
media_length = media_info["media_length"]
upload_name = name if name else media_info["upload_name"]
if media_info["url_cache"]:
# TODO: Check the file still exists, if it doesn't we can redownload
# it from the url `media_info["url_cache"]`
file_path = self.filepaths.url_cache_filepath(media_id)
else:
file_path = self.filepaths.local_media_filepath(media_id)
yield respond_with_file(

18
synapse/rest/media/v1/filepath.py
View file

@ -71,3 +71,21 @@ class MediaFilePaths(object):
self.base_path, "remote_thumbnail", server_name,
file_id[0:2], file_id[2:4], file_id[4:],
)
def url_cache_filepath(self, media_id):
return os.path.join(
self.base_path, "url_cache",
media_id[0:2], media_id[2:4], media_id[4:]
)
def url_cache_thumbnail(self, media_id, width, height, content_type,
method):
top_level_type, sub_type = content_type.split("/")
file_name = "%i-%i-%s-%s-%s" % (
width, height, top_level_type, sub_type, method
)
return os.path.join(
self.base_path, "url_cache_thumbnails",
media_id[0:2], media_id[2:4], media_id[4:],
file_name
)

16
synapse/rest/media/v1/media_repository.py
View file

@ -326,13 +326,17 @@ class MediaRepository(object):
defer.returnValue(t_path)
@defer.inlineCallbacks
def _generate_local_thumbnails(self, media_id, media_info):
def _generate_local_thumbnails(self, media_id, media_info, url_cache=False):
media_type = media_info["media_type"]
requirements = self._get_thumbnail_requirements(media_type)
if not requirements:
return
if url_cache:
input_path = self.filepaths.url_cache_filepath(media_id)
else:
input_path = self.filepaths.local_media_filepath(media_id)
thumbnailer = Thumbnailer(input_path)
m_width = thumbnailer.width
m_height = thumbnailer.height
@ -360,6 +364,11 @@ class MediaRepository(object):
for t_width, t_height, t_type in scales:
t_method = "scale"
if url_cache:
t_path = self.filepaths.url_cache_thumbnail(
media_id, t_width, t_height, t_type, t_method
)
else:
t_path = self.filepaths.local_media_thumbnail(
media_id, t_width, t_height, t_type, t_method
)
@ -377,6 +386,11 @@ class MediaRepository(object):
# thumbnail.
continue
t_method = "crop"
if url_cache:
t_path = self.filepaths.url_cache_thumbnail(
media_id, t_width, t_height, t_type, t_method
)
else:
t_path = self.filepaths.local_media_thumbnail(
media_id, t_width, t_height, t_type, t_method
)

7
synapse/rest/media/v1/preview_url_resource.py
View file

@ -164,7 +164,7 @@ class PreviewUrlResource(Resource):
if _is_media(media_info['media_type']):
dims = yield self.media_repo._generate_local_thumbnails(
media_info['filesystem_id'], media_info
media_info['filesystem_id'], media_info, url_cache=True,
)
og = {
@ -210,7 +210,7 @@ class PreviewUrlResource(Resource):
if _is_media(image_info['media_type']):
# TODO: make sure we don't choke on white-on-transparent images
dims = yield self.media_repo._generate_local_thumbnails(
image_info['filesystem_id'], image_info
image_info['filesystem_id'], image_info, url_cache=True,
)
if dims:
og["og:image:width"] = dims['width']
@ -256,7 +256,7 @@ class PreviewUrlResource(Resource):
# XXX: horrible duplication with base_resource's _download_remote_file()
file_id = random_string(24)
fname = self.filepaths.local_media_filepath(file_id)
fname = self.filepaths.url_cache_filepath(file_id)
self.media_repo._makedirs(fname)
try:
@ -303,6 +303,7 @@ class PreviewUrlResource(Resource):
upload_name=download_name,
media_length=length,
user_id=user,
url_cache=url,
)
except Exception as e:

18
synapse/rest/media/v1/thumbnail_resource.py
View file

@ -101,6 +101,13 @@ class ThumbnailResource(Resource):
t_type = thumbnail_info["thumbnail_type"]
t_method = thumbnail_info["thumbnail_method"]
if media_info["url_cache"]:
# TODO: Check the file still exists, if it doesn't we can redownload
# it from the url `media_info["url_cache"]`
file_path = self.filepaths.url_cache_thumbnail(
media_id, t_width, t_height, t_type, t_method,
)
else:
file_path = self.filepaths.local_media_thumbnail(
media_id, t_width, t_height, t_type, t_method,
)
@ -134,8 +141,17 @@ class ThumbnailResource(Resource):
t_type = info["thumbnail_type"] == desired_type
if t_w and t_h and t_method and t_type:
if media_info["url_cache"]:
# TODO: Check the file still exists, if it doesn't we can redownload
# it from the url `media_info["url_cache"]`
file_path = self.filepaths.url_cache_thumbnail(
media_id, desired_width, desired_height, desired_type,
desired_method,
)
else:
file_path = self.filepaths.local_media_thumbnail(
media_id, desired_width, desired_height, desired_type, desired_method,
media_id, desired_width, desired_height, desired_type,
desired_method,
)
yield respond_with_file(request, desired_type, file_path)
return

8
synapse/storage/media_repository.py
View file

@ -30,13 +30,16 @@ class MediaRepositoryStore(SQLBaseStore):
return self._simple_select_one(
"local_media_repository",
{"media_id": media_id},
("media_type", "media_length", "upload_name", "created_ts", "quarantined_by"),
(
"media_type", "media_length", "upload_name", "created_ts",
"quarantined_by", "url_cache",
),
allow_none=True,
desc="get_local_media",
)
def store_local_media(self, media_id, media_type, time_now_ms, upload_name,
media_length, user_id):
media_length, user_id, url_cache=None):
return self._simple_insert(
"local_media_repository",
{
@ -46,6 +49,7 @@ class MediaRepositoryStore(SQLBaseStore):
"upload_name": upload_name,
"media_length": media_length,
"user_id": user_id.to_string(),
"url_cache": url_cache,
},
desc="store_local_media",
)

16
synapse/storage/schema/delta/43/url_cache.sql Normal file
View file

@ -0,0 +1,16 @@
/* Copyright 2017 Vector Creations Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
ALTER TABLE local_media_repository ADD COLUMN url_cache TEXT;