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Don't fail requests to unbind 3pids for non supporting ID servers

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Older identity servers may not support the unbind 3pid request, so we
shouldn't fail the requests if we received one of 400/404/501. The
request still fails if we receive e.g. 500 responses, allowing clients
to retry requests on transient identity server errors that otherwise do
support the API.

Fixes #3661
This commit is contained in:
Erik Johnston 2018-08-08 11:54:55 +01:00
parent e5d2c67844
commit 360ba89c50
6 changed files with 77 additions and 20 deletions
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30
synapse/handlers/identity.py
View file

@ -137,15 +137,19 @@ class IdentityHandler(BaseHandler):
defer.returnValue(data)
@defer.inlineCallbacks
def unbind_threepid(self, mxid, threepid):
"""
Removes a binding from an identity server
def try_unbind_threepid(self, mxid, threepid):
"""Removes a binding from an identity server
Args:
mxid (str): Matrix user ID of binding to be removed
threepid (dict): Dict with medium & address of binding to be removed
Raises:
SynapseError: If we failed to contact the identity server
Returns:
Deferred[bool]: True on success, otherwise False
Deferred[bool]: True on success, otherwise False if the identity
server doesn't support unbinding
"""
logger.debug("unbinding threepid %r from %s", threepid, mxid)
if not self.trusted_id_servers:
@ -175,11 +179,19 @@ class IdentityHandler(BaseHandler):
content=content,
destination_is=id_server,
)
yield self.http_client.post_json_get_json(
url,
content,
headers,
)
try:
yield self.http_client.post_json_get_json(
url,
content,
headers,
)
except HttpResponseException as e:
if e.code in (400, 404, 501,):
# The remote server probably doesn't support unbinding (yet)
defer.returnValue(False)
else:
raise SynapseError(502, "Failed to contact identity server")
defer.returnValue(True)
@defer.inlineCallbacks