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Regenerate exact thumbnails if missing

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This commit is contained in:
Erik Johnston 2021-02-18 16:22:21 +00:00
parent 90550f598e
commit b106080fb4
3 changed files with 58 additions and 11 deletions
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2
synapse/rest/media/v1/media_repository.py
View file

@ -509,7 +509,7 @@ class MediaRepository:
t_height: int,
t_method: str,
t_type: str,
url_cache: str,
url_cache: Optional[str],
) -> Optional[str]:
input_path = await self.media_storage.ensure_media_is_in_local_cache(
FileInfo(None, media_id, url_cache=url_cache)

49
synapse/rest/media/v1/thumbnail_resource.py
View file

@ -114,6 +114,7 @@ class ThumbnailResource(DirectServeJsonResource):
m_type,
thumbnail_infos,
media_id,
media_id,
url_cache=media_info["url_cache"],
server_name=None,
)
@ -269,6 +270,7 @@ class ThumbnailResource(DirectServeJsonResource):
method,
m_type,
thumbnail_infos,
media_id,
media_info["filesystem_id"],
url_cache=None,
server_name=server_name,
@ -282,6 +284,7 @@ class ThumbnailResource(DirectServeJsonResource):
desired_method: str,
desired_type: str,
thumbnail_infos: List[Dict[str, Any]],
media_id: str,
file_id: str,
url_cache: Optional[str] = None,
server_name: Optional[str] = None,
@ -316,9 +319,53 @@ class ThumbnailResource(DirectServeJsonResource):
respond_404(request)
return
responder = await self.media_storage.fetch_media(file_info)
if responder:
await respond_with_responder(
request,
responder,
file_info.thumbnail_type,
file_info.thumbnail_length,
)
return
# If we can't find the thumbnail we regenerate it. This can happen
# if e.g. we've deleted the thumbnails but still have the original
# image somewhere.
#
# Since we have an entry for the thumbnail in the DB we a) know we
# have have successfully generated the thumbnail in the past (so we
# don't need to worry about repeatedly failing to generate
# thumbnails), and b) have already calculated that appropriate
# width/height/method so we can just call the "generate exact"
# methods.
if server_name:
await self.media_repo.generate_remote_exact_thumbnail(
server_name,
file_id=file_id,
media_id=media_id,
t_width=file_info.thumbnail_width,
t_height=file_info.thumbnail_height,
t_method=file_info.thumbnail_method,
t_type=file_info.thumbnail_type,
)
else:
await self.media_repo.generate_local_exact_thumbnail(
media_id=media_id,
t_width=file_info.thumbnail_width,
t_height=file_info.thumbnail_height,
t_method=file_info.thumbnail_method,
t_type=file_info.thumbnail_type,
url_cache=url_cache,
)
responder = await self.media_storage.fetch_media(file_info)
await respond_with_responder(
request, responder, file_info.thumbnail_type, file_info.thumbnail_length
request,
responder,
file_info.thumbnail_type,
file_info.thumbnail_length,
)
else:
logger.info("Failed to find any generated thumbnails")

18
synapse/storage/databases/main/media_repository.py
View file

@ -344,16 +344,16 @@ class MediaRepositoryStore(MediaRepositoryBackgroundUpdateStore):
thumbnail_method,
thumbnail_length,
):
await self.db_pool.simple_insert(
"local_media_repository_thumbnails",
{
await self.db_pool.simple_upsert(
table="local_media_repository_thumbnails",
keyvalues={
"media_id": media_id,
"thumbnail_width": thumbnail_width,
"thumbnail_height": thumbnail_height,
"thumbnail_method": thumbnail_method,
"thumbnail_type": thumbnail_type,
"thumbnail_length": thumbnail_length,
},
values={"thumbnail_length": thumbnail_length},
desc="store_local_thumbnail",
)
@ -498,18 +498,18 @@ class MediaRepositoryStore(MediaRepositoryBackgroundUpdateStore):
thumbnail_method,
thumbnail_length,
):
await self.db_pool.simple_insert(
"remote_media_cache_thumbnails",
{
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,
"thumbnail_length": thumbnail_length,
"filesystem_id": filesystem_id,
},
values={"thumbnail_length": thumbnail_length},
insertion_values={"filesystem_id": filesystem_id},
desc="store_remote_media_thumbnail",
)