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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, max(download_ts)"
" FROM local_media_repository_url_cache"
" WHERE url = ? AND download_ts <= ?"
)
txn.execute(sql, (url, ts))
row = txn.fetchone()
if not row[3]:
# ...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, min(download_ts)"
" FROM local_media_repository_url_cache"
" WHERE url = ? AND download_ts > ?"
)
txn.execute(sql, (url, ts))
row = txn.fetchone()
if not row[3]:
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,
},
desc="store_cached_remote_media",
)
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",
)
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