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560f3b8609
This fixes an issue where different methods (crop/scale) overwrite each other. This first tries the new path. If that fails and we are looking for a remote thumbnail, it tries the old path. If that still isn't found, it continues as normal. This should probably be removed in the future, after some of the newer thumbnails were generated with the new path on most deployments. Then the overhead should be minimal if the other thumbnails need to be regenerated. Signed-off-by: Nicolas Werner <nicolas.werner@hotmail.de>
206 lines
7.4 KiB
Python
206 lines
7.4 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import functools
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import os
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import re
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NEW_FORMAT_ID_RE = re.compile(r"^\d\d\d\d-\d\d-\d\d")
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def _wrap_in_base_path(func):
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"""Takes a function that returns a relative path and turns it into an
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absolute path based on the location of the primary media store
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"""
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@functools.wraps(func)
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def _wrapped(self, *args, **kwargs):
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path = func(self, *args, **kwargs)
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return os.path.join(self.base_path, path)
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return _wrapped
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class MediaFilePaths:
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"""Describes where files are stored on disk.
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Most of the functions have a `*_rel` variant which returns a file path that
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is relative to the base media store path. This is mainly used when we want
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to write to the backup media store (when one is configured)
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"""
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def __init__(self, primary_base_path):
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self.base_path = primary_base_path
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def default_thumbnail_rel(
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self, default_top_level, default_sub_type, width, height, content_type, method
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):
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top_level_type, sub_type = content_type.split("/")
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file_name = "%i-%i-%s-%s-%s" % (width, height, top_level_type, sub_type, method)
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return os.path.join(
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"default_thumbnails", default_top_level, default_sub_type, file_name
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)
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default_thumbnail = _wrap_in_base_path(default_thumbnail_rel)
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def local_media_filepath_rel(self, media_id):
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return os.path.join("local_content", media_id[0:2], media_id[2:4], media_id[4:])
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local_media_filepath = _wrap_in_base_path(local_media_filepath_rel)
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def local_media_thumbnail_rel(self, media_id, width, height, content_type, method):
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top_level_type, sub_type = content_type.split("/")
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file_name = "%i-%i-%s-%s-%s" % (width, height, top_level_type, sub_type, method)
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return os.path.join(
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"local_thumbnails", media_id[0:2], media_id[2:4], media_id[4:], file_name
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)
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local_media_thumbnail = _wrap_in_base_path(local_media_thumbnail_rel)
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def remote_media_filepath_rel(self, server_name, file_id):
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return os.path.join(
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"remote_content", server_name, file_id[0:2], file_id[2:4], file_id[4:]
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)
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remote_media_filepath = _wrap_in_base_path(remote_media_filepath_rel)
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def remote_media_thumbnail_rel(
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self, server_name, file_id, width, height, content_type, method
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):
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top_level_type, sub_type = content_type.split("/")
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file_name = "%i-%i-%s-%s-%s" % (width, height, top_level_type, sub_type, method)
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return os.path.join(
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"remote_thumbnail",
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server_name,
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file_id[0:2],
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file_id[2:4],
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file_id[4:],
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file_name,
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)
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remote_media_thumbnail = _wrap_in_base_path(remote_media_thumbnail_rel)
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# Legacy path that was used to store thumbnails previously.
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# Should be removed after some time, when most of the thumbnails are stored
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# using the new path.
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def remote_media_thumbnail_rel_legacy(
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self, server_name, file_id, width, height, content_type
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):
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top_level_type, sub_type = content_type.split("/")
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file_name = "%i-%i-%s-%s" % (width, height, top_level_type, sub_type)
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return os.path.join(
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"remote_thumbnail",
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server_name,
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file_id[0:2],
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file_id[2:4],
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file_id[4:],
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file_name,
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)
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def remote_media_thumbnail_dir(self, server_name, file_id):
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return os.path.join(
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self.base_path,
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"remote_thumbnail",
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server_name,
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file_id[0:2],
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file_id[2:4],
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file_id[4:],
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)
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def url_cache_filepath_rel(self, media_id):
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if NEW_FORMAT_ID_RE.match(media_id):
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# Media id is of the form <DATE><RANDOM_STRING>
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# E.g.: 2017-09-28-fsdRDt24DS234dsf
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return os.path.join("url_cache", media_id[:10], media_id[11:])
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else:
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return os.path.join("url_cache", media_id[0:2], media_id[2:4], media_id[4:])
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url_cache_filepath = _wrap_in_base_path(url_cache_filepath_rel)
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def url_cache_filepath_dirs_to_delete(self, media_id):
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"The dirs to try and remove if we delete the media_id file"
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if NEW_FORMAT_ID_RE.match(media_id):
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return [os.path.join(self.base_path, "url_cache", media_id[:10])]
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else:
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return [
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os.path.join(self.base_path, "url_cache", media_id[0:2], media_id[2:4]),
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os.path.join(self.base_path, "url_cache", media_id[0:2]),
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]
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def url_cache_thumbnail_rel(self, media_id, width, height, content_type, method):
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# Media id is of the form <DATE><RANDOM_STRING>
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# E.g.: 2017-09-28-fsdRDt24DS234dsf
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top_level_type, sub_type = content_type.split("/")
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file_name = "%i-%i-%s-%s-%s" % (width, height, top_level_type, sub_type, method)
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if NEW_FORMAT_ID_RE.match(media_id):
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return os.path.join(
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"url_cache_thumbnails", media_id[:10], media_id[11:], file_name
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)
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else:
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return os.path.join(
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"url_cache_thumbnails",
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media_id[0:2],
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media_id[2:4],
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media_id[4:],
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file_name,
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)
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url_cache_thumbnail = _wrap_in_base_path(url_cache_thumbnail_rel)
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def url_cache_thumbnail_directory(self, media_id):
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# Media id is of the form <DATE><RANDOM_STRING>
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# E.g.: 2017-09-28-fsdRDt24DS234dsf
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if NEW_FORMAT_ID_RE.match(media_id):
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return os.path.join(
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self.base_path, "url_cache_thumbnails", media_id[:10], media_id[11:]
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)
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else:
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return os.path.join(
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self.base_path,
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"url_cache_thumbnails",
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media_id[0:2],
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media_id[2:4],
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media_id[4:],
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)
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def url_cache_thumbnail_dirs_to_delete(self, media_id):
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"The dirs to try and remove if we delete the media_id thumbnails"
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# Media id is of the form <DATE><RANDOM_STRING>
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# E.g.: 2017-09-28-fsdRDt24DS234dsf
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if NEW_FORMAT_ID_RE.match(media_id):
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return [
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os.path.join(
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self.base_path, "url_cache_thumbnails", media_id[:10], media_id[11:]
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),
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os.path.join(self.base_path, "url_cache_thumbnails", media_id[:10]),
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]
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else:
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return [
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os.path.join(
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self.base_path,
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"url_cache_thumbnails",
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media_id[0:2],
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media_id[2:4],
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media_id[4:],
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),
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os.path.join(
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self.base_path, "url_cache_thumbnails", media_id[0:2], media_id[2:4]
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),
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os.path.join(self.base_path, "url_cache_thumbnails", media_id[0:2]),
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]
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