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Be more careful which errors we send back over the C-S API

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We really shouldn't be sending all CodeMessageExceptions back over the C-S API;
it will include things like 401s which we shouldn't proxy.

That means that we need to explicitly turn a few HttpResponseExceptions into
SynapseErrors in the federation layer.

The effect of the latter is that the matrix errcode will get passed through
correctly to calling clients, which might help with some of the random
M_UNKNOWN errors when trying to join rooms.
This commit is contained in:
Richard van der Hoff 2018-08-01 13:47:07 +01:00
parent c82ccd3027
commit fa7dc889f1
3 changed files with 22 additions and 32 deletions
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14
synapse/http/server.py
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@ -36,7 +36,6 @@ from synapse.api.errors import (
Codes,
SynapseError,
UnrecognizedRequestError,
cs_exception,
)
from synapse.http.request_metrics import requests_counter
from synapse.util.caches import intern_dict
@ -77,16 +76,13 @@ def wrap_json_request_handler(h):
def wrapped_request_handler(self, request):
try:
yield h(self, request)
except CodeMessageException as e:
except SynapseError as e:
code = e.code
if isinstance(e, SynapseError):
logger.info(
"%s SynapseError: %s - %s", request, code, e.msg
)
else:
logger.exception(e)
logger.info(
"%s SynapseError: %s - %s", request, code, e.msg
)
respond_with_json(
request, code, cs_exception(e), send_cors=True,
request, code, e.error_dict(), send_cors=True,
pretty_print=_request_user_agent_is_curl(request),
)