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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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11
synapse/api/errors.py
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@ -69,9 +69,6 @@ class CodeMessageException(RuntimeError):
self.code = code
self.msg = msg
def error_dict(self):
return cs_error(self.msg)
class MatrixCodeMessageException(CodeMessageException):
"""An error from a general matrix endpoint, eg. from a proxied Matrix API call.
@ -308,14 +305,6 @@ class LimitExceededError(SynapseError):
)
def cs_exception(exception):
if isinstance(exception, CodeMessageException):
return exception.error_dict()
else:
logger.error("Unknown exception type: %s", type(exception))
return {}
def cs_error(msg, code=Codes.UNKNOWN, **kwargs):
""" Utility method for constructing an error response for client-server
interactions.