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- # -*- coding: utf-8 -*-
- # Copyright 2014-2016 OpenMarket 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.
- from ._base import SQLBaseStore
- class MediaRepositoryStore(SQLBaseStore):
- """Persistence for attachments and avatars"""
- def get_default_thumbnails(self, top_level_type, sub_type):
- return []
- def get_local_media(self, media_id):
- """Get the metadata for a local piece of media
- Returns:
- None if the media_id doesn't exist.
- """
- return self._simple_select_one(
- "local_media_repository",
- {"media_id": media_id},
- ("media_type", "media_length", "upload_name", "created_ts"),
- 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):
- return self._simple_insert(
- "local_media_repository",
- {
- "media_id": media_id,
- "media_type": media_type,
- "created_ts": time_now_ms,
- "upload_name": upload_name,
- "media_length": media_length,
- "user_id": user_id.to_string(),
- },
- desc="store_local_media",
- )
- def get_url_cache(self, url, ts):
- """Get the media_id and ts for a cached URL as of the given timestamp
- Returns:
- None if the URL isn't cached.
- """
- def get_url_cache_txn(txn):
- # get the most recently cached result (relative to the given ts)
- sql = (
- "SELECT response_code, etag, expires, og, media_id, download_ts"
- " FROM local_media_repository_url_cache"
- " WHERE url = ? AND download_ts <= ?"
- " ORDER BY download_ts DESC LIMIT 1"
- )
- txn.execute(sql, (url, ts))
- row = txn.fetchone()
- if not row:
- # ...or if we've requested a timestamp older than the oldest
- # copy in the cache, return the oldest copy (if any)
- sql = (
- "SELECT response_code, etag, expires, og, media_id, download_ts"
- " FROM local_media_repository_url_cache"
- " WHERE url = ? AND download_ts > ?"
- " ORDER BY download_ts ASC LIMIT 1"
- )
- txn.execute(sql, (url, ts))
- row = txn.fetchone()
- if not row:
- return None
- return dict(zip((
- 'response_code', 'etag', 'expires', 'og', 'media_id', 'download_ts'
- ), row))
- return self.runInteraction(
- "get_url_cache", get_url_cache_txn
- )
- def store_url_cache(self, url, response_code, etag, expires, og, media_id,
- download_ts):
- return self._simple_insert(
- "local_media_repository_url_cache",
- {
- "url": url,
- "response_code": response_code,
- "etag": etag,
- "expires": expires,
- "og": og,
- "media_id": media_id,
- "download_ts": download_ts,
- },
- desc="store_url_cache",
- )
- def get_local_media_thumbnails(self, media_id):
- return self._simple_select_list(
- "local_media_repository_thumbnails",
- {"media_id": media_id},
- (
- "thumbnail_width", "thumbnail_height", "thumbnail_method",
- "thumbnail_type", "thumbnail_length",
- ),
- desc="get_local_media_thumbnails",
- )
- def store_local_thumbnail(self, media_id, thumbnail_width,
- thumbnail_height, thumbnail_type,
- thumbnail_method, thumbnail_length):
- return self._simple_insert(
- "local_media_repository_thumbnails",
- {
- "media_id": media_id,
- "thumbnail_width": thumbnail_width,
- "thumbnail_height": thumbnail_height,
- "thumbnail_method": thumbnail_method,
- "thumbnail_type": thumbnail_type,
- "thumbnail_length": thumbnail_length,
- },
- desc="store_local_thumbnail",
- )
- def get_cached_remote_media(self, origin, media_id):
- return self._simple_select_one(
- "remote_media_cache",
- {"media_origin": origin, "media_id": media_id},
- (
- "media_type", "media_length", "upload_name", "created_ts",
- "filesystem_id",
- ),
- allow_none=True,
- desc="get_cached_remote_media",
- )
- def store_cached_remote_media(self, origin, media_id, media_type,
- media_length, time_now_ms, upload_name,
- filesystem_id):
- return self._simple_insert(
- "remote_media_cache",
- {
- "media_origin": origin,
- "media_id": media_id,
- "media_type": media_type,
- "media_length": media_length,
- "created_ts": time_now_ms,
- "upload_name": upload_name,
- "filesystem_id": filesystem_id,
- "last_access_ts": time_now_ms,
- },
- desc="store_cached_remote_media",
- )
- def update_cached_last_access_time(self, origin_id_tuples, time_ts):
- def update_cache_txn(txn):
- sql = (
- "UPDATE remote_media_cache SET last_access_ts = ?"
- " WHERE media_origin = ? AND media_id = ?"
- )
- txn.executemany(sql, (
- (time_ts, media_origin, media_id)
- for media_origin, media_id in origin_id_tuples
- ))
- return self.runInteraction("update_cached_last_access_time", update_cache_txn)
- def get_remote_media_thumbnails(self, origin, media_id):
- return self._simple_select_list(
- "remote_media_cache_thumbnails",
- {"media_origin": origin, "media_id": media_id},
- (
- "thumbnail_width", "thumbnail_height", "thumbnail_method",
- "thumbnail_type", "thumbnail_length", "filesystem_id",
- ),
- desc="get_remote_media_thumbnails",
- )
- def store_remote_media_thumbnail(self, origin, media_id, filesystem_id,
- thumbnail_width, thumbnail_height,
- thumbnail_type, thumbnail_method,
- thumbnail_length):
- return self._simple_insert(
- "remote_media_cache_thumbnails",
- {
- "media_origin": origin,
- "media_id": media_id,
- "thumbnail_width": thumbnail_width,
- "thumbnail_height": thumbnail_height,
- "thumbnail_method": thumbnail_method,
- "thumbnail_type": thumbnail_type,
- "thumbnail_length": thumbnail_length,
- "filesystem_id": filesystem_id,
- },
- desc="store_remote_media_thumbnail",
- )
- def get_remote_media_before(self, before_ts):
- sql = (
- "SELECT media_origin, media_id, filesystem_id"
- " FROM remote_media_cache"
- " WHERE last_access_ts < ?"
- )
- return self._execute(
- "get_remote_media_before", self.cursor_to_dict, sql, before_ts
- )
- def delete_remote_media(self, media_origin, media_id):
- def delete_remote_media_txn(txn):
- self._simple_delete_txn(
- txn,
- "remote_media_cache",
- keyvalues={
- "media_origin": media_origin, "media_id": media_id
- },
- )
- self._simple_delete_txn(
- txn,
- "remote_media_cache_thumbnails",
- keyvalues={
- "media_origin": media_origin, "media_id": media_id
- },
- )
- return self.runInteraction("delete_remote_media", delete_remote_media_txn)
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