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Fix zero length media handling (#17570)

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Results in:

```
AssertionError: null
  File "synapse/http/server.py", line 332, in _async_render_wrapper
    callback_return = await self._async_render(request)
  File "synapse/http/server.py", line 544, in _async_render
    callback_return = await raw_callback_return
  File "synapse/federation/transport/server/_base.py", line 369, in new_func
    response = await func(
  File "synapse/federation/transport/server/federation.py", line 826, in on_GET
    await self.media_repo.get_local_media(
  File "synapse/media/media_repository.py", line 473, in get_local_media
    await respond_with_multipart_responder(
  File "synapse/media/_base.py", line 353, in respond_with_multipart_responder
    assert content_length is not None
```
This commit is contained in:
Erik Johnston 2024-08-19 15:06:44 +01:00 committed by GitHub
parent a5d25bb623
commit 993644ded0
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2 changed files with 2 additions and 1 deletions
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1
changelog.d/17570.bugfix Normal file
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@ -0,0 +1 @@
Fix bug where we would respond with an error when a remote server asked for media that had a length of 0, using the new multipart federation media endpoint.

2
synapse/media/media_storage.py
View file

@ -544,7 +544,7 @@ class MultipartFileConsumer:
Calculate the content length of the multipart response
in bytes.
"""
if not self.length:
if self.length is None:
return None
# calculate length of json field and content-type, disposition headers
json_field = json.dumps(self.json_field)