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Don't reuse source but instead copy from primary media store to backup

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This commit is contained in:
Erik Johnston 2017-10-13 14:11:34 +01:00
parent b92a8e6e4a
commit 2b24416e90
2 changed files with 9 additions and 22 deletions
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28
synapse/rest/media/v1/media_repository.py
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@ -95,7 +95,7 @@ class MediaRepository(object):
os.makedirs(dirname)
@staticmethod
def _write_file_synchronously(source, fname, close_source=False):
def _write_file_synchronously(source, fname):
"""Write `source` to the path `fname` synchronously. Should be called
from a thread.
@ -109,16 +109,11 @@ class MediaRepository(object):
with open(fname, "wb") as f:
shutil.copyfileobj(source, f)
if close_source:
source.close()
@defer.inlineCallbacks
def write_to_file_and_backup(self, source, path):
"""Write `source` to the on disk media store, and also the backup store
if configured.
Will close source once finished.
Args:
source: A file like object that should be written
path (str): Relative path to write file to
@ -134,37 +129,31 @@ class MediaRepository(object):
))
# Write to backup repository
yield self.copy_to_backup(source, path)
yield self.copy_to_backup(path)
defer.returnValue(fname)
@defer.inlineCallbacks
def copy_to_backup(self, source, path):
"""Copy file like object source to the backup media store, if configured.
Will close source after its done.
def copy_to_backup(self, path):
"""Copy a file from the primary to backup media store, if configured.
Args:
source: A file like object that should be written
path(str): Relative path to write file to
"""
if self.backup_base_path:
primary_fname = os.path.join(self.primary_base_path, path)
backup_fname = os.path.join(self.backup_base_path, path)
# We can either wait for successful writing to the backup repository
# or write in the background and immediately return
if self.synchronous_backup_media_store:
yield make_deferred_yieldable(threads.deferToThread(
self._write_file_synchronously, source, backup_fname,
close_source=True,
shutil.copyfile, primary_fname, backup_fname,
))
else:
preserve_fn(threads.deferToThread)(
self._write_file_synchronously, source, backup_fname,
close_source=True,
shutil.copyfile, primary_fname, backup_fname,
)
else:
source.close()
@defer.inlineCallbacks
def create_content(self, media_type, upload_name, content, content_length,
@ -280,8 +269,7 @@ class MediaRepository(object):
server_name, media_id)
raise SynapseError(502, "Failed to fetch remote media")
# Will close the file after its done
yield self.copy_to_backup(open(fname), fpath)
yield self.copy_to_backup(fpath)
media_type = headers["Content-Type"][0]
time_now_ms = self.clock.time_msec()

3
synapse/rest/media/v1/preview_url_resource.py
View file

@ -275,8 +275,7 @@ class PreviewUrlResource(Resource):
)
# FIXME: pass through 404s and other error messages nicely
# Will close the file after its done
yield self.media_repo.copy_to_backup(open(fname), fpath)
yield self.media_repo.copy_to_backup(fpath)
media_type = headers["Content-Type"][0]
time_now_ms = self.clock.time_msec()