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Add an admin api to delete local media. (#8519)

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Related to: #6459, #3479

Add `DELETE /_synapse/admin/v1/media/<server_name>/<media_id>` to delete
a single file from server.
This commit is contained in:
Dirk Klimpel 2020-10-26 18:02:28 +01:00 • committed by GitHub
parent f6a3859a73
commit 49d72dea2a
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7 changed files with 868 additions and 3 deletions
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53
synapse/storage/databases/main/media_repository.py
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@ -93,6 +93,7 @@ class MediaRepositoryStore(MediaRepositoryBackgroundUpdateStore):
def __init__(self, database: DatabasePool, db_conn, hs):
super().__init__(database, db_conn, hs)
self.server_name = hs.hostname
async def get_local_media(self, media_id: str) -> Optional[Dict[str, Any]]:
"""Get the metadata for a local piece of media
@ -115,6 +116,58 @@ class MediaRepositoryStore(MediaRepositoryBackgroundUpdateStore):
desc="get_local_media",
)
async def get_local_media_before(
self, before_ts: int, size_gt: int, keep_profiles: bool,
) -> Optional[List[str]]:
# to find files that have never been accessed (last_access_ts IS NULL)
# compare with `created_ts`
sql = """
SELECT media_id
FROM local_media_repository AS lmr
WHERE
( last_access_ts < ?
OR ( created_ts < ? AND last_access_ts IS NULL ) )
AND media_length > ?
"""
if keep_profiles:
sql_keep = """
AND (
NOT EXISTS
(SELECT 1
FROM profiles
WHERE profiles.avatar_url = '{media_prefix}' || lmr.media_id)
AND NOT EXISTS
(SELECT 1
FROM groups
WHERE groups.avatar_url = '{media_prefix}' || lmr.media_id)
AND NOT EXISTS
(SELECT 1
FROM room_memberships
WHERE room_memberships.avatar_url = '{media_prefix}' || lmr.media_id)
AND NOT EXISTS
(SELECT 1
FROM user_directory
WHERE user_directory.avatar_url = '{media_prefix}' || lmr.media_id)
AND NOT EXISTS
(SELECT 1
FROM room_stats_state
WHERE room_stats_state.avatar = '{media_prefix}' || lmr.media_id)
)
""".format(
media_prefix="mxc://%s/" % (self.server_name,),
)
sql += sql_keep
def _get_local_media_before_txn(txn):
txn.execute(sql, (before_ts, before_ts, size_gt))
return [row[0] for row in txn]
return await self.db_pool.runInteraction(
"get_local_media_before", _get_local_media_before_txn
)
async def store_local_media(
self,
media_id,