747 lines
25 KiB
Python
747 lines
25 KiB
Python
# Copyright 2014-2016 OpenMarket Ltd
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# Copyright 2020-2021 The Matrix.org Foundation C.I.C.
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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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from enum import Enum
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from typing import (
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TYPE_CHECKING,
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Any,
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Collection,
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Dict,
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Iterable,
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List,
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Optional,
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Tuple,
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Union,
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cast,
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)
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from synapse.storage._base import SQLBaseStore
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from synapse.storage.database import (
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DatabasePool,
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LoggingDatabaseConnection,
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LoggingTransaction,
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)
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from synapse.types import JsonDict, UserID
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if TYPE_CHECKING:
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from synapse.server import HomeServer
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BG_UPDATE_REMOVE_MEDIA_REPO_INDEX_WITHOUT_METHOD = (
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"media_repository_drop_index_wo_method"
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)
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BG_UPDATE_REMOVE_MEDIA_REPO_INDEX_WITHOUT_METHOD_2 = (
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"media_repository_drop_index_wo_method_2"
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)
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class MediaSortOrder(Enum):
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"""
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Enum to define the sorting method used when returning media with
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get_local_media_by_user_paginate
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"""
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MEDIA_ID = "media_id"
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UPLOAD_NAME = "upload_name"
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CREATED_TS = "created_ts"
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LAST_ACCESS_TS = "last_access_ts"
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MEDIA_LENGTH = "media_length"
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MEDIA_TYPE = "media_type"
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QUARANTINED_BY = "quarantined_by"
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SAFE_FROM_QUARANTINE = "safe_from_quarantine"
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class MediaRepositoryBackgroundUpdateStore(SQLBaseStore):
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def __init__(
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self,
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database: DatabasePool,
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db_conn: LoggingDatabaseConnection,
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hs: "HomeServer",
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):
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super().__init__(database, db_conn, hs)
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self.db_pool.updates.register_background_index_update(
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update_name="local_media_repository_url_idx",
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index_name="local_media_repository_url_idx",
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table="local_media_repository",
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columns=["created_ts"],
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where_clause="url_cache IS NOT NULL",
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)
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# The following the updates add the method to the unique constraint of
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# the thumbnail databases. That fixes an issue, where thumbnails of the
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# same resolution, but different methods could overwrite one another.
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# This can happen with custom thumbnail configs or with dynamic thumbnailing.
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self.db_pool.updates.register_background_index_update(
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update_name="local_media_repository_thumbnails_method_idx",
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index_name="local_media_repository_thumbn_media_id_width_height_method_key",
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table="local_media_repository_thumbnails",
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columns=[
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"media_id",
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"thumbnail_width",
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"thumbnail_height",
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"thumbnail_type",
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"thumbnail_method",
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],
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unique=True,
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)
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self.db_pool.updates.register_background_index_update(
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update_name="remote_media_repository_thumbnails_method_idx",
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index_name="remote_media_repository_thumbn_media_origin_id_width_height_method_key",
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table="remote_media_cache_thumbnails",
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columns=[
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"media_origin",
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"media_id",
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"thumbnail_width",
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"thumbnail_height",
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"thumbnail_type",
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"thumbnail_method",
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],
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unique=True,
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)
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# the original impl of _drop_media_index_without_method was broken (see
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# https://github.com/matrix-org/synapse/issues/8649), so we replace the original
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# impl with a no-op and run the fixed migration as
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# media_repository_drop_index_wo_method_2.
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self.db_pool.updates.register_noop_background_update(
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BG_UPDATE_REMOVE_MEDIA_REPO_INDEX_WITHOUT_METHOD
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)
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self.db_pool.updates.register_background_update_handler(
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BG_UPDATE_REMOVE_MEDIA_REPO_INDEX_WITHOUT_METHOD_2,
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self._drop_media_index_without_method,
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)
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async def _drop_media_index_without_method(
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self, progress: JsonDict, batch_size: int
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) -> int:
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"""background update handler which removes the old constraints.
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Note that this is only run on postgres.
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"""
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def f(txn: LoggingTransaction) -> None:
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txn.execute(
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"ALTER TABLE local_media_repository_thumbnails DROP CONSTRAINT IF EXISTS local_media_repository_thumbn_media_id_thumbnail_width_thum_key"
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)
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txn.execute(
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"ALTER TABLE remote_media_cache_thumbnails DROP CONSTRAINT IF EXISTS remote_media_cache_thumbnails_media_origin_media_id_thumbna_key"
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)
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await self.db_pool.runInteraction("drop_media_indices_without_method", f)
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await self.db_pool.updates._end_background_update(
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BG_UPDATE_REMOVE_MEDIA_REPO_INDEX_WITHOUT_METHOD_2
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)
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return 1
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class MediaRepositoryStore(MediaRepositoryBackgroundUpdateStore):
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"""Persistence for attachments and avatars"""
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def __init__(
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self,
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database: DatabasePool,
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db_conn: LoggingDatabaseConnection,
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hs: "HomeServer",
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):
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super().__init__(database, db_conn, hs)
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self.server_name: str = hs.hostname
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async def get_local_media(self, media_id: str) -> Optional[Dict[str, Any]]:
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"""Get the metadata for a local piece of media
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Returns:
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None if the media_id doesn't exist.
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"""
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return await self.db_pool.simple_select_one(
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"local_media_repository",
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{"media_id": media_id},
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(
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"media_type",
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"media_length",
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"upload_name",
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"created_ts",
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"quarantined_by",
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"url_cache",
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"safe_from_quarantine",
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),
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allow_none=True,
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desc="get_local_media",
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)
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async def get_local_media_by_user_paginate(
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self,
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start: int,
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limit: int,
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user_id: str,
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order_by: str = MediaSortOrder.CREATED_TS.value,
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direction: str = "f",
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) -> Tuple[List[Dict[str, Any]], int]:
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"""Get a paginated list of metadata for a local piece of media
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which an user_id has uploaded
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Args:
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start: offset in the list
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limit: maximum amount of media_ids to retrieve
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user_id: fully-qualified user id
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order_by: the sort order of the returned list
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direction: sort ascending or descending
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Returns:
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A paginated list of all metadata of user's media,
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plus the total count of all the user's media
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"""
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def get_local_media_by_user_paginate_txn(
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txn: LoggingTransaction,
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) -> Tuple[List[Dict[str, Any]], int]:
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# Set ordering
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order_by_column = MediaSortOrder(order_by).value
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if direction == "b":
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order = "DESC"
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else:
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order = "ASC"
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args: List[Union[str, int]] = [user_id]
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sql = """
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SELECT COUNT(*) as total_media
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FROM local_media_repository
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WHERE user_id = ?
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"""
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txn.execute(sql, args)
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count = cast(Tuple[int], txn.fetchone())[0]
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sql = """
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SELECT
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"media_id",
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"media_type",
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"media_length",
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"upload_name",
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"created_ts",
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"last_access_ts",
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"quarantined_by",
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"safe_from_quarantine"
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FROM local_media_repository
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WHERE user_id = ?
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ORDER BY {order_by_column} {order}, media_id ASC
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LIMIT ? OFFSET ?
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""".format(
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order_by_column=order_by_column,
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order=order,
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)
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args += [limit, start]
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txn.execute(sql, args)
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media = self.db_pool.cursor_to_dict(txn)
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return media, count
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return await self.db_pool.runInteraction(
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"get_local_media_by_user_paginate_txn", get_local_media_by_user_paginate_txn
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)
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async def get_local_media_ids(
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self,
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before_ts: int,
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size_gt: int,
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keep_profiles: bool,
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include_quarantined_media: bool,
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include_protected_media: bool,
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) -> List[str]:
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"""
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Retrieve a list of media IDs from the local media store.
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Args:
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before_ts: Only retrieve IDs from media that was either last accessed
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(or if never accessed, created) before the given UNIX timestamp in ms.
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size_gt: Only retrieve IDs from media that has a size (in bytes) greater than
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the given integer.
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keep_profiles: If True, exclude media IDs from the results that are used in the
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following situations:
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* global profile user avatar
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* per-room profile user avatar
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* room avatar
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* a user's avatar in the user directory
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include_quarantined_media: If False, exclude media IDs from the results that have
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been marked as quarantined.
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include_protected_media: If False, exclude media IDs from the results that have
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been marked as protected from quarantine.
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Returns:
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A list of local media IDs.
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"""
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# to find files that have never been accessed (last_access_ts IS NULL)
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# compare with `created_ts`
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sql = """
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SELECT media_id
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FROM local_media_repository AS lmr
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WHERE
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( last_access_ts < ?
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OR ( created_ts < ? AND last_access_ts IS NULL ) )
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AND media_length > ?
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"""
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if keep_profiles:
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sql_keep = """
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AND (
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NOT EXISTS
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(SELECT 1
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FROM profiles
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WHERE profiles.avatar_url = '{media_prefix}' || lmr.media_id)
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AND NOT EXISTS
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(SELECT 1
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FROM room_memberships
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WHERE room_memberships.avatar_url = '{media_prefix}' || lmr.media_id)
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AND NOT EXISTS
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(SELECT 1
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FROM user_directory
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WHERE user_directory.avatar_url = '{media_prefix}' || lmr.media_id)
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AND NOT EXISTS
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(SELECT 1
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FROM room_stats_state
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WHERE room_stats_state.avatar = '{media_prefix}' || lmr.media_id)
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)
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""".format(
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media_prefix="mxc://%s/" % (self.server_name,),
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)
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sql += sql_keep
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if include_quarantined_media is False:
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# Do not include media that has been quarantined
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sql += """
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AND quarantined_by IS NULL
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"""
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if include_protected_media is False:
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# Do not include media that has been protected from quarantine
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sql += """
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AND NOT safe_from_quarantine
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"""
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def _get_local_media_ids_txn(txn: LoggingTransaction) -> List[str]:
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txn.execute(sql, (before_ts, before_ts, size_gt))
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return [row[0] for row in txn]
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return await self.db_pool.runInteraction(
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"get_local_media_ids", _get_local_media_ids_txn
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)
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async def store_local_media(
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self,
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media_id: str,
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media_type: str,
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time_now_ms: int,
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upload_name: Optional[str],
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media_length: int,
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user_id: UserID,
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url_cache: Optional[str] = None,
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) -> None:
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await self.db_pool.simple_insert(
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"local_media_repository",
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{
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"media_id": media_id,
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"media_type": media_type,
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"created_ts": time_now_ms,
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"upload_name": upload_name,
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"media_length": media_length,
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"user_id": user_id.to_string(),
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"url_cache": url_cache,
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},
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desc="store_local_media",
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)
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async def mark_local_media_as_safe(self, media_id: str, safe: bool = True) -> None:
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"""Mark a local media as safe or unsafe from quarantining."""
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await self.db_pool.simple_update_one(
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table="local_media_repository",
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keyvalues={"media_id": media_id},
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updatevalues={"safe_from_quarantine": safe},
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desc="mark_local_media_as_safe",
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)
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async def get_url_cache(self, url: str, ts: int) -> Optional[Dict[str, Any]]:
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"""Get the media_id and ts for a cached URL as of the given timestamp
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Returns:
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None if the URL isn't cached.
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"""
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def get_url_cache_txn(txn: LoggingTransaction) -> Optional[Dict[str, Any]]:
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# get the most recently cached result (relative to the given ts)
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sql = (
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"SELECT response_code, etag, expires_ts, og, media_id, download_ts"
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" FROM local_media_repository_url_cache"
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" WHERE url = ? AND download_ts <= ?"
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" ORDER BY download_ts DESC LIMIT 1"
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)
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txn.execute(sql, (url, ts))
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row = txn.fetchone()
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if not row:
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# ...or if we've requested a timestamp older than the oldest
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# copy in the cache, return the oldest copy (if any)
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sql = (
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"SELECT response_code, etag, expires_ts, og, media_id, download_ts"
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" FROM local_media_repository_url_cache"
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" WHERE url = ? AND download_ts > ?"
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" ORDER BY download_ts ASC LIMIT 1"
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)
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txn.execute(sql, (url, ts))
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row = txn.fetchone()
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if not row:
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return None
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return dict(
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zip(
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(
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"response_code",
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"etag",
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"expires_ts",
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"og",
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"media_id",
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"download_ts",
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),
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row,
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)
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)
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return await self.db_pool.runInteraction("get_url_cache", get_url_cache_txn)
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async def store_url_cache(
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self,
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url: str,
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response_code: int,
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etag: Optional[str],
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expires_ts: int,
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og: Optional[str],
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media_id: str,
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download_ts: int,
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) -> None:
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await self.db_pool.simple_insert(
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"local_media_repository_url_cache",
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{
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"url": url,
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"response_code": response_code,
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"etag": etag,
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"expires_ts": expires_ts,
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"og": og,
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"media_id": media_id,
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"download_ts": download_ts,
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},
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desc="store_url_cache",
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)
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async def get_local_media_thumbnails(self, media_id: str) -> List[Dict[str, Any]]:
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return await self.db_pool.simple_select_list(
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"local_media_repository_thumbnails",
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{"media_id": media_id},
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(
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"thumbnail_width",
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"thumbnail_height",
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"thumbnail_method",
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"thumbnail_type",
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"thumbnail_length",
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),
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desc="get_local_media_thumbnails",
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)
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async def store_local_thumbnail(
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self,
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media_id: str,
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thumbnail_width: int,
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thumbnail_height: int,
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thumbnail_type: str,
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thumbnail_method: str,
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thumbnail_length: int,
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) -> None:
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await self.db_pool.simple_upsert(
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table="local_media_repository_thumbnails",
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keyvalues={
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"media_id": media_id,
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"thumbnail_width": thumbnail_width,
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"thumbnail_height": thumbnail_height,
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"thumbnail_method": thumbnail_method,
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"thumbnail_type": thumbnail_type,
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},
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values={"thumbnail_length": thumbnail_length},
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desc="store_local_thumbnail",
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)
|
|
|
|
async def get_cached_remote_media(
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self, origin: str, media_id: str
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) -> Optional[Dict[str, Any]]:
|
|
return await self.db_pool.simple_select_one(
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"remote_media_cache",
|
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{"media_origin": origin, "media_id": media_id},
|
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(
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"media_type",
|
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"media_length",
|
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"upload_name",
|
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"created_ts",
|
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"filesystem_id",
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"quarantined_by",
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),
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allow_none=True,
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desc="get_cached_remote_media",
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)
|
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async def store_cached_remote_media(
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self,
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origin: str,
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media_id: str,
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media_type: str,
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media_length: int,
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time_now_ms: int,
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upload_name: Optional[str],
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filesystem_id: str,
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) -> None:
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await self.db_pool.simple_insert(
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"remote_media_cache",
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{
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"media_origin": origin,
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"media_id": media_id,
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"media_type": media_type,
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"media_length": media_length,
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"created_ts": time_now_ms,
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"upload_name": upload_name,
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"filesystem_id": filesystem_id,
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"last_access_ts": time_now_ms,
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},
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desc="store_cached_remote_media",
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)
|
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async def update_cached_last_access_time(
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self,
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local_media: Iterable[str],
|
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remote_media: Iterable[Tuple[str, str]],
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time_ms: int,
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) -> None:
|
|
"""Updates the last access time of the given media
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|
|
|
Args:
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local_media: Set of media_ids
|
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remote_media: Set of (server_name, media_id)
|
|
time_ms: Current time in milliseconds
|
|
"""
|
|
|
|
def update_cache_txn(txn: LoggingTransaction) -> None:
|
|
sql = (
|
|
"UPDATE remote_media_cache SET last_access_ts = ?"
|
|
" WHERE media_origin = ? AND media_id = ?"
|
|
)
|
|
|
|
txn.execute_batch(
|
|
sql,
|
|
(
|
|
(time_ms, media_origin, media_id)
|
|
for media_origin, media_id in remote_media
|
|
),
|
|
)
|
|
|
|
sql = (
|
|
"UPDATE local_media_repository SET last_access_ts = ?"
|
|
" WHERE media_id = ?"
|
|
)
|
|
|
|
txn.execute_batch(sql, ((time_ms, media_id) for media_id in local_media))
|
|
|
|
await self.db_pool.runInteraction(
|
|
"update_cached_last_access_time", update_cache_txn
|
|
)
|
|
|
|
async def get_remote_media_thumbnails(
|
|
self, origin: str, media_id: str
|
|
) -> List[Dict[str, Any]]:
|
|
return await self.db_pool.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",
|
|
)
|
|
|
|
async def get_remote_media_thumbnail(
|
|
self,
|
|
origin: str,
|
|
media_id: str,
|
|
t_width: int,
|
|
t_height: int,
|
|
t_type: str,
|
|
) -> Optional[Dict[str, Any]]:
|
|
"""Fetch the thumbnail info of given width, height and type."""
|
|
|
|
return await self.db_pool.simple_select_one(
|
|
table="remote_media_cache_thumbnails",
|
|
keyvalues={
|
|
"media_origin": origin,
|
|
"media_id": media_id,
|
|
"thumbnail_width": t_width,
|
|
"thumbnail_height": t_height,
|
|
"thumbnail_type": t_type,
|
|
},
|
|
retcols=(
|
|
"thumbnail_width",
|
|
"thumbnail_height",
|
|
"thumbnail_method",
|
|
"thumbnail_type",
|
|
"thumbnail_length",
|
|
"filesystem_id",
|
|
),
|
|
allow_none=True,
|
|
desc="get_remote_media_thumbnail",
|
|
)
|
|
|
|
async def store_remote_media_thumbnail(
|
|
self,
|
|
origin: str,
|
|
media_id: str,
|
|
filesystem_id: str,
|
|
thumbnail_width: int,
|
|
thumbnail_height: int,
|
|
thumbnail_type: str,
|
|
thumbnail_method: str,
|
|
thumbnail_length: int,
|
|
) -> None:
|
|
await self.db_pool.simple_upsert(
|
|
table="remote_media_cache_thumbnails",
|
|
keyvalues={
|
|
"media_origin": origin,
|
|
"media_id": media_id,
|
|
"thumbnail_width": thumbnail_width,
|
|
"thumbnail_height": thumbnail_height,
|
|
"thumbnail_method": thumbnail_method,
|
|
"thumbnail_type": thumbnail_type,
|
|
},
|
|
values={"thumbnail_length": thumbnail_length},
|
|
insertion_values={"filesystem_id": filesystem_id},
|
|
desc="store_remote_media_thumbnail",
|
|
)
|
|
|
|
async def get_remote_media_ids(
|
|
self, before_ts: int, include_quarantined_media: bool
|
|
) -> List[Dict[str, str]]:
|
|
"""
|
|
Retrieve a list of server name, media ID tuples from the remote media cache.
|
|
|
|
Args:
|
|
before_ts: Only retrieve IDs from media that was either last accessed
|
|
(or if never accessed, created) before the given UNIX timestamp in ms.
|
|
include_quarantined_media: If False, exclude media IDs from the results that have
|
|
been marked as quarantined.
|
|
|
|
Returns:
|
|
A list of tuples containing:
|
|
* The server name of homeserver where the media originates from,
|
|
* The ID of the media.
|
|
"""
|
|
sql = (
|
|
"SELECT media_origin, media_id, filesystem_id"
|
|
" FROM remote_media_cache"
|
|
" WHERE last_access_ts < ?"
|
|
)
|
|
|
|
if include_quarantined_media is False:
|
|
# Only include media that has not been quarantined
|
|
sql += """
|
|
AND quarantined_by IS NULL
|
|
"""
|
|
|
|
return await self.db_pool.execute(
|
|
"get_remote_media_ids", self.db_pool.cursor_to_dict, sql, before_ts
|
|
)
|
|
|
|
async def delete_remote_media(self, media_origin: str, media_id: str) -> None:
|
|
def delete_remote_media_txn(txn: LoggingTransaction) -> None:
|
|
self.db_pool.simple_delete_txn(
|
|
txn,
|
|
"remote_media_cache",
|
|
keyvalues={"media_origin": media_origin, "media_id": media_id},
|
|
)
|
|
self.db_pool.simple_delete_txn(
|
|
txn,
|
|
"remote_media_cache_thumbnails",
|
|
keyvalues={"media_origin": media_origin, "media_id": media_id},
|
|
)
|
|
|
|
await self.db_pool.runInteraction(
|
|
"delete_remote_media", delete_remote_media_txn
|
|
)
|
|
|
|
async def get_expired_url_cache(self, now_ts: int) -> List[str]:
|
|
sql = (
|
|
"SELECT media_id FROM local_media_repository_url_cache"
|
|
" WHERE expires_ts < ?"
|
|
" ORDER BY expires_ts ASC"
|
|
" LIMIT 500"
|
|
)
|
|
|
|
def _get_expired_url_cache_txn(txn: LoggingTransaction) -> List[str]:
|
|
txn.execute(sql, (now_ts,))
|
|
return [row[0] for row in txn]
|
|
|
|
return await self.db_pool.runInteraction(
|
|
"get_expired_url_cache", _get_expired_url_cache_txn
|
|
)
|
|
|
|
async def delete_url_cache(self, media_ids: Collection[str]) -> None:
|
|
if len(media_ids) == 0:
|
|
return
|
|
|
|
sql = "DELETE FROM local_media_repository_url_cache WHERE media_id = ?"
|
|
|
|
def _delete_url_cache_txn(txn: LoggingTransaction) -> None:
|
|
txn.execute_batch(sql, [(media_id,) for media_id in media_ids])
|
|
|
|
await self.db_pool.runInteraction("delete_url_cache", _delete_url_cache_txn)
|
|
|
|
async def get_url_cache_media_before(self, before_ts: int) -> List[str]:
|
|
sql = (
|
|
"SELECT media_id FROM local_media_repository"
|
|
" WHERE created_ts < ? AND url_cache IS NOT NULL"
|
|
" ORDER BY created_ts ASC"
|
|
" LIMIT 500"
|
|
)
|
|
|
|
def _get_url_cache_media_before_txn(txn: LoggingTransaction) -> List[str]:
|
|
txn.execute(sql, (before_ts,))
|
|
return [row[0] for row in txn]
|
|
|
|
return await self.db_pool.runInteraction(
|
|
"get_url_cache_media_before", _get_url_cache_media_before_txn
|
|
)
|
|
|
|
async def delete_url_cache_media(self, media_ids: Collection[str]) -> None:
|
|
if len(media_ids) == 0:
|
|
return
|
|
|
|
def _delete_url_cache_media_txn(txn: LoggingTransaction) -> None:
|
|
sql = "DELETE FROM local_media_repository WHERE media_id = ?"
|
|
|
|
txn.execute_batch(sql, [(media_id,) for media_id in media_ids])
|
|
|
|
sql = "DELETE FROM local_media_repository_thumbnails WHERE media_id = ?"
|
|
|
|
txn.execute_batch(sql, [(media_id,) for media_id in media_ids])
|
|
|
|
await self.db_pool.runInteraction(
|
|
"delete_url_cache_media", _delete_url_cache_media_txn
|
|
)
|