Add HomeServer.signing_key property (#7805)

... instead of duplicating `config.signing_key[0]` everywhere

synapse/events/builder.py

@@ -162,7 +162,7 @@ class EventBuilderFactory(object):
     def __init__(self, hs):
         self.clock = hs.get_clock()
         self.hostname = hs.hostname
-        self.signing_key = hs.config.signing_key[0]
+        self.signing_key = hs.signing_key
 
         self.store = hs.get_datastore()
         self.state = hs.get_state_handler()

synapse/federation/federation_client.py

@@ -87,7 +87,7 @@ class FederationClient(FederationBase):
         self.transport_layer = hs.get_federation_transport_client()
 
         self.hostname = hs.hostname
-        self.signing_key = hs.config.signing_key[0]
+        self.signing_key = hs.signing_key
 
         self._get_pdu_cache = ExpiringCache(
             cache_name="get_pdu_cache",

synapse/groups/attestations.py

@@ -70,7 +70,7 @@ class GroupAttestationSigning(object):
         self.keyring = hs.get_keyring()
         self.clock = hs.get_clock()
         self.server_name = hs.hostname
-        self.signing_key = hs.config.signing_key[0]
+        self.signing_key = hs.signing_key
 
     @defer.inlineCallbacks
     def verify_attestation(self, attestation, group_id, user_id, server_name=None):

synapse/groups/groups_server.py

@@ -41,7 +41,7 @@ class GroupsServerWorkerHandler(object):
         self.clock = hs.get_clock()
         self.keyring = hs.get_keyring()
         self.is_mine_id = hs.is_mine_id
-        self.signing_key = hs.config.signing_key[0]
+        self.signing_key = hs.signing_key
         self.server_name = hs.hostname
         self.attestations = hs.get_groups_attestation_signing()
         self.transport_client = hs.get_federation_transport_client()

synapse/handlers/federation.py

@@ -1567,7 +1567,7 @@ class FederationHandler(BaseHandler):
                 room_version,
                 event.get_pdu_json(),
                 self.hs.hostname,
-                self.hs.config.signing_key[0],
+                self.hs.signing_key,
             )
         )
 

synapse/handlers/groups_local.py

@@ -70,7 +70,7 @@ class GroupsLocalWorkerHandler(object):
         self.clock = hs.get_clock()
         self.keyring = hs.get_keyring()
         self.is_mine_id = hs.is_mine_id
-        self.signing_key = hs.config.signing_key[0]
+        self.signing_key = hs.signing_key
         self.server_name = hs.hostname
         self.notifier = hs.get_notifier()
         self.attestations = hs.get_groups_attestation_signing()

synapse/http/matrixfederationclient.py

@@ -176,7 +176,7 @@ class MatrixFederationHttpClient(object):
 
     def __init__(self, hs, tls_client_options_factory):
         self.hs = hs
-        self.signing_key = hs.config.signing_key[0]
+        self.signing_key = hs.signing_key
         self.server_name = hs.hostname
 
         real_reactor = hs.get_reactor()

synapse/server.py

@@ -232,6 +232,8 @@ class HomeServer(object):
 
         self._reactor = reactor
         self.hostname = hostname
+        # the key we use to sign events and requests
+        self.signing_key = config.key.signing_key[0]
         self.config = config
         self._building = {}
         self._listening_services = []