Kill off MatrixCodeMessageException

This code brings the SimpleHttpClient into line with the
MatrixFederationHttpClient by having it raise HttpResponseExceptions when a
request fails (rather than trying to parse for matrix errors and maybe raising
MatrixCodeMessageException).

Then, whenever we were checking for MatrixCodeMessageException and turning them
into SynapseErrors, we now need to check for HttpResponseExceptions and call
to_synapse_error.

synapse/replication/http/membership.py

@@ -18,7 +18,7 @@ import re
 
 from twisted.internet import defer
 
-from synapse.api.errors import MatrixCodeMessageException, SynapseError
+from synapse.api.errors import HttpResponseException
 from synapse.http.servlet import RestServlet, parse_json_object_from_request
 from synapse.types import Requester, UserID
 from synapse.util.distributor import user_joined_room, user_left_room
@@ -56,11 +56,11 @@ def remote_join(client, host, port, requester, remote_room_hosts,
 
     try:
         result = yield client.post_json_get_json(uri, payload)
-    except MatrixCodeMessageException as e:
+    except HttpResponseException as e:
         # We convert to SynapseError as we know that it was a SynapseError
         # on the master process that we should send to the client. (And
         # importantly, not stack traces everywhere)
-        raise SynapseError(e.code, e.msg, e.errcode)
+        raise e.to_synapse_error()
     defer.returnValue(result)
 
 
@@ -92,11 +92,11 @@ def remote_reject_invite(client, host, port, requester, remote_room_hosts,
 
     try:
         result = yield client.post_json_get_json(uri, payload)
-    except MatrixCodeMessageException as e:
+    except HttpResponseException as e:
         # We convert to SynapseError as we know that it was a SynapseError
         # on the master process that we should send to the client. (And
         # importantly, not stack traces everywhere)
-        raise SynapseError(e.code, e.msg, e.errcode)
+        raise e.to_synapse_error()
     defer.returnValue(result)
 
 
@@ -131,11 +131,11 @@ def get_or_register_3pid_guest(client, host, port, requester,
 
     try:
         result = yield client.post_json_get_json(uri, payload)
-    except MatrixCodeMessageException as e:
+    except HttpResponseException as e:
         # We convert to SynapseError as we know that it was a SynapseError
         # on the master process that we should send to the client. (And
         # importantly, not stack traces everywhere)
-        raise SynapseError(e.code, e.msg, e.errcode)
+        raise e.to_synapse_error()
     defer.returnValue(result)
 
 
@@ -165,11 +165,11 @@ def notify_user_membership_change(client, host, port, user_id, room_id, change):
 
     try:
         result = yield client.post_json_get_json(uri, payload)
-    except MatrixCodeMessageException as e:
+    except HttpResponseException as e:
         # We convert to SynapseError as we know that it was a SynapseError
         # on the master process that we should send to the client. (And
         # importantly, not stack traces everywhere)
-        raise SynapseError(e.code, e.msg, e.errcode)
+        raise e.to_synapse_error()
     defer.returnValue(result)
 
 

synapse/replication/http/send_event.py

@@ -18,11 +18,7 @@ import re
 
 from twisted.internet import defer
 
-from synapse.api.errors import (
-    CodeMessageException,
-    MatrixCodeMessageException,
-    SynapseError,
-)
+from synapse.api.errors import CodeMessageException, HttpResponseException
 from synapse.events import FrozenEvent
 from synapse.events.snapshot import EventContext
 from synapse.http.servlet import RestServlet, parse_json_object_from_request
@@ -83,11 +79,11 @@ def send_event_to_master(clock, store, client, host, port, requester, event, con
             # If we timed out we probably don't need to worry about backing
             # off too much, but lets just wait a little anyway.
             yield clock.sleep(1)
-    except MatrixCodeMessageException as e:
+    except HttpResponseException as e:
         # We convert to SynapseError as we know that it was a SynapseError
         # on the master process that we should send to the client. (And
         # importantly, not stack traces everywhere)
-        raise SynapseError(e.code, e.msg, e.errcode)
+        raise e.to_synapse_error()
     defer.returnValue(result)