Add query_user/alias APIs.

synapse/appservice/api.py

@@ -12,25 +12,64 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+from twisted.internet import defer
+from twisted.web.client import PartialDownloadError
+
+from synapse.http.client import SimpleHttpClient
+
+import logging
+import urllib
+
+logger = logging.getLogger(__name__)
 
 
-class ApplicationServiceApi(object):
+class ApplicationServiceApi(SimpleHttpClient):
     """This class manages HS -> AS communications, including querying and
     pushing.
     """
 
     def __init__(self,  hs):
+        super(ApplicationServiceApi, self).__init__(hs)
         self.hs_token = "_hs_token_"  # TODO extract hs token
 
+    @defer.inlineCallbacks
     def query_user(self, service, user_id):
-        pass
+        uri = service.url + ("/users/%s" % urllib.quote(user_id))
+        response = None
+        try:
+            response = yield self.get_json(uri, {
+                "access_token": self.hs_token
+            })
+            if response:  # just an empty json object
+                defer.returnValue(True)
+        except PartialDownloadError as e:
+            if e.status == 404:
+                defer.returnValue(False)
+                return
+            logger.warning("query_user to %s received %s", (uri, e.status))
 
+    @defer.inlineCallbacks
     def query_alias(self, service, alias):
-        pass
+        uri = service.url + ("/rooms/%s" % urllib.quote(alias))
+        response = None
+        try:
+            response = yield self.get_json(uri, {
+                "access_token": self.hs_token
+            })
+            logger.info("%s", response[0])
+            if response:  # just an empty json object
+                defer.returnValue(True)
+        except PartialDownloadError as e:
+            if e.status == 404:
+                defer.returnValue(False)
+                return
+            logger.warning("query_alias to %s received %s", (uri, e.status))
 
     def push_bulk(self, service, events):
         pass
 
+    @defer.inlineCallbacks
     def push(self, service, event):
-        pass
+        response = yield self.push_bulk(service, [event])
+        defer.returnValue(response)
 

synapse/handlers/appservice.py

@@ -55,10 +55,14 @@ class ApplicationServicesHandler(object):
         logger.info("Updating application service info...")
         yield self.store.update_app_service(app_service)
 
+        logger.info("Sending ping to %s...", app_service.url)
+        yield self.appservice_api.query_alias(app_service, "ping")
+
     def unregister(self, token):
         logger.info("Unregister as_token=%s", token)
         yield self.store.unregister_app_service(token)
 
+    @defer.inlineCallbacks
     def get_services_for_event(self, event, restrict_to=""):
         """Retrieve a list of application services interested in this event.
 
@@ -71,14 +75,15 @@ class ApplicationServicesHandler(object):
         """
         # We need to know the aliases associated with this event.room_id, if any
         alias_list = []  # TODO
-
+        services = yield self.store.get_app_services()
         interested_list = [
-            s for s in self.store.get_app_services() if (
+            s for s in services if (
                 s.is_interested(event, restrict_to, alias_list)
             )
         ]
-        return interested_list
+        defer.returnValue(interested_list)
 
+    @defer.inlineCallbacks
     def notify_interested_services(self, event):
         """Notifies (pushes) all application services interested in this event.
 
@@ -89,7 +94,7 @@ class ApplicationServicesHandler(object):
             event(Event): The event to push out to interested services.
         """
         # Gather interested services
-        services = self.get_services_for_event(event)
+        services = yield self.get_services_for_event(event)
         if len(services) == 0:
             return  # no services need notifying
 
@@ -97,14 +102,14 @@ class ApplicationServicesHandler(object):
         # all services which match that user regex.
         unknown_user = False  # TODO check
         if unknown_user:
-            user_query_services = self.get_services_for_event(
+            user_query_services = yield self.get_services_for_event(
                 event=event,
                 restrict_to=ApplicationService.NS_USERS
             )
             for user_service in user_query_services:
                 # this needs to block XXX: Need to feed response back to caller
-                is_known_user = self.appservice_api.query_user(
-                    user_service, event
+                is_known_user = yield self.appservice_api.query_user(
+                    user_service, event.sender
                 )
                 if is_known_user:
                     # the user exists now,so don't query more ASes.
@@ -114,14 +119,15 @@ class ApplicationServicesHandler(object):
         # API for all services which match that room alias regex.
         unknown_room_alias = False  # TODO check
         if unknown_room_alias:
-            alias_query_services = self.get_services_for_event(
+            alias = "something"  # TODO
+            alias_query_services = yield self.get_services_for_event(
                 event=event,
                 restrict_to=ApplicationService.NS_ALIASES
             )
             for alias_service in alias_query_services:
                 # this needs to block XXX: Need to feed response back to caller
-                is_known_alias = self.appservice_api.query_alias(
-                    alias_service, event
+                is_known_alias = yield self.appservice_api.query_alias(
+                    alias_service, alias
                 )
                 if is_known_alias:
                     # the alias exists now so don't query more ASes.