From 73d93039ff6c3addd54bb29a57808a3f2eed7a05 Mon Sep 17 00:00:00 2001 From: Richard van der Hoff <1389908+richvdh@users.noreply.github.com> Date: Fri, 2 Oct 2020 12:29:29 +0100 Subject: [PATCH] Fix bug in remote thumbnail search (#8438) #7124 changed the behaviour of remote thumbnails so that the thumbnailing method was included in the filename of the thumbnail. To support existing files, it included a fallback so that we would check the old filename if the new filename didn't exist. Unfortunately, it didn't apply this logic to storage providers, so any thumbnails stored on such a storage provider was broken. --- changelog.d/8438.bugfix | 1 + synapse/rest/media/v1/media_storage.py | 43 ++++++++++++++------------ 2 files changed, 24 insertions(+), 20 deletions(-) create mode 100644 changelog.d/8438.bugfix diff --git a/changelog.d/8438.bugfix b/changelog.d/8438.bugfix new file mode 100644 index 0000000000..3edc394149 --- /dev/null +++ b/changelog.d/8438.bugfix @@ -0,0 +1 @@ +Fix a regression in v1.21.0rc1 which broke thumbnails of remote media. diff --git a/synapse/rest/media/v1/media_storage.py b/synapse/rest/media/v1/media_storage.py index 5681677fc9..a9586fb0b7 100644 --- a/synapse/rest/media/v1/media_storage.py +++ b/synapse/rest/media/v1/media_storage.py @@ -141,31 +141,34 @@ class MediaStorage: Returns: Returns a Responder if the file was found, otherwise None. """ + paths = [self._file_info_to_path(file_info)] - path = self._file_info_to_path(file_info) - local_path = os.path.join(self.local_media_directory, path) - if os.path.exists(local_path): - return FileResponder(open(local_path, "rb")) - - # Fallback for paths without method names - # Should be removed in the future + # fallback for remote thumbnails with no method in the filename if file_info.thumbnail and file_info.server_name: - legacy_path = self.filepaths.remote_media_thumbnail_rel_legacy( - server_name=file_info.server_name, - file_id=file_info.file_id, - width=file_info.thumbnail_width, - height=file_info.thumbnail_height, - content_type=file_info.thumbnail_type, + paths.append( + self.filepaths.remote_media_thumbnail_rel_legacy( + server_name=file_info.server_name, + file_id=file_info.file_id, + width=file_info.thumbnail_width, + height=file_info.thumbnail_height, + content_type=file_info.thumbnail_type, + ) ) - legacy_local_path = os.path.join(self.local_media_directory, legacy_path) - if os.path.exists(legacy_local_path): - return FileResponder(open(legacy_local_path, "rb")) + + for path in paths: + local_path = os.path.join(self.local_media_directory, path) + if os.path.exists(local_path): + logger.debug("responding with local file %s", local_path) + return FileResponder(open(local_path, "rb")) + logger.debug("local file %s did not exist", local_path) for provider in self.storage_providers: - res = await provider.fetch(path, file_info) # type: Any - if res: - logger.debug("Streaming %s from %s", path, provider) - return res + for path in paths: + res = await provider.fetch(path, file_info) # type: Any + if res: + logger.debug("Streaming %s from %s", path, provider) + return res + logger.debug("%s not found on %s", path, provider) return None