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| author | Jason Robinson <jasonr@matrix.org> | 2021-01-23 21:41:35 +0200 |
|---|---|---|
| committer | Jason Robinson <jasonr@matrix.org> | 2021-01-23 21:41:35 +0200 |
| commit | 8965b6cfec8a1de847efe3d1be4b9babf4622e2e (patch) | |
| tree | 4551f104ee2ce840689aa5ecffa939938482ffd5 /synapse/http/__init__.py | |
| parent | Add depth and received_ts to forward_extremities admin API response (diff) | |
| parent | Return a 404 if no valid thumbnail is found. (#9163) (diff) | |
| download | synapse-8965b6cfec8a1de847efe3d1be4b9babf4622e2e.tar.xz | |
Merge branch 'develop' into jaywink/admin-forward-extremities
Diffstat (limited to 'synapse/http/__init__.py')
| -rw-r--r-- | synapse/http/__init__.py | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/synapse/http/__init__.py b/synapse/http/__init__.py index 59b01b812c..4bc3cb53f0 100644 --- a/synapse/http/__init__.py +++ b/synapse/http/__init__.py @@ -17,6 +17,7 @@ import re from twisted.internet import task from twisted.web.client import FileBodyProducer +from twisted.web.iweb import IRequest from synapse.api.errors import SynapseError @@ -50,3 +51,17 @@ class QuieterFileBodyProducer(FileBodyProducer): FileBodyProducer.stopProducing(self) except task.TaskStopped: pass + + +def get_request_user_agent(request: IRequest, default: str = "") -> str: + """Return the last User-Agent header, or the given default. + """ + # There could be raw utf-8 bytes in the User-Agent header. + + # N.B. if you don't do this, the logger explodes cryptically + # with maximum recursion trying to log errors about + # the charset problem. + # c.f. https://github.com/matrix-org/synapse/issues/3471 + + h = request.getHeader(b"User-Agent") + return h.decode("ascii", "replace") if h else default |