Convert expected format for AS regex to include exclusivity.

Previously you just specified the regex as a string, now it expects a JSON
object with a 'regex' key and an 'exclusive' boolean, as per spec.

synapse/appservice/__init__.py

@@ -46,19 +46,31 @@ class ApplicationService(object):
     def _check_namespaces(self, namespaces):
         # Sanity check that it is of the form:
         # {
-        #   users: ["regex",...],
-        #   aliases: ["regex",...],
-        #   rooms: ["regex",...],
+        #   users: [ {regex: "[A-z]+.*", exclusive: true}, ...],
+        #   aliases: [ {regex: "[A-z]+.*", exclusive: true}, ...],
+        #   rooms: [ {regex: "[A-z]+.*", exclusive: true}, ...],
         # }
         if not namespaces:
             return None
 
         for ns in ApplicationService.NS_LIST:
+            if ns not in namespaces:
+                namespaces[ns] = []
+                continue
+
             if type(namespaces[ns]) != list:
-                raise ValueError("Bad namespace value for '%s'", ns)
-            for regex in namespaces[ns]:
-                if not isinstance(regex, basestring):
-                    raise ValueError("Expected string regex for ns '%s'", ns)
+                raise ValueError("Bad namespace value for '%s'" % ns)
+            for regex_obj in namespaces[ns]:
+                if not isinstance(regex_obj, dict):
+                    raise ValueError("Expected dict regex for ns '%s'" % ns)
+                if not isinstance(regex_obj.get("exclusive"), bool):
+                    raise ValueError(
+                        "Expected bool for 'exclusive' in ns '%s'" % ns
+                    )
+                if not isinstance(regex_obj.get("regex"), basestring):
+                    raise ValueError(
+                        "Expected string for 'regex' in ns '%s'" % ns
+                    )
         return namespaces
 
     def _matches_regex(self, test_string, namespace_key):

synapse/rest/appservice/v1/register.py

@@ -48,18 +48,12 @@ class RegisterRestServlet(AppServiceRestServlet):
                 400, "Missed required keys: as_token(str) / url(str)."
             )
 
-        namespaces = {
-            "users": [],
-            "rooms": [],
-            "aliases": []
-        }
-
-        if "namespaces" in params:
-            self._parse_namespace(namespaces, params["namespaces"], "users")
-            self._parse_namespace(namespaces, params["namespaces"], "rooms")
-            self._parse_namespace(namespaces, params["namespaces"], "aliases")
-
-        app_service = ApplicationService(as_token, as_url, namespaces)
+        try:
+            app_service = ApplicationService(
+                as_token, as_url, params["namespaces"]
+            )
+        except ValueError as e:
+            raise SynapseError(400, e.message)
 
         app_service = yield self.handler.register(app_service)
         hs_token = app_service.hs_token
@@ -68,23 +62,6 @@ class RegisterRestServlet(AppServiceRestServlet):
             "hs_token": hs_token
         }))
 
-    def _parse_namespace(self, target_ns, origin_ns, ns):
-        if ns not in target_ns or ns not in origin_ns:
-            return  # nothing to parse / map through to.
-
-        possible_regex_list = origin_ns[ns]
-        if not type(possible_regex_list) == list:
-            raise SynapseError(400, "Namespace %s isn't an array." % ns)
-
-        for regex in possible_regex_list:
-            if not isinstance(regex, basestring):
-                raise SynapseError(
-                    400, "Regex '%s' isn't a string in namespace %s" %
-                    (regex, ns)
-                )
-
-        target_ns[ns] = origin_ns[ns]
-
 
 class UnregisterRestServlet(AppServiceRestServlet):
     """Handles AS registration with the home server.

synapse/storage/appservice.py

@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
+import simplejson
+from simplejson import JSONDecodeError
 from twisted.internet import defer
 
 from synapse.api.errors import StoreError
@@ -23,12 +25,18 @@ from ._base import SQLBaseStore
 logger = logging.getLogger(__name__)
 
 
+def log_failure(failure):
+    logger.error("Failed to detect application services: %s", failure.value)
+    logger.error(failure.getTraceback())
+
+
 class ApplicationServiceStore(SQLBaseStore):
 
     def __init__(self, hs):
         super(ApplicationServiceStore, self).__init__(hs)
         self.services_cache = []
         self.cache_defer = self._populate_cache()
+        self.cache_defer.addErrback(log_failure)
 
     @defer.inlineCallbacks
     def unregister_app_service(self, token):
@@ -128,11 +136,11 @@ class ApplicationServiceStore(SQLBaseStore):
         )
         for (ns_int, ns_str) in enumerate(ApplicationService.NS_LIST):
             if ns_str in service.namespaces:
-                for regex in service.namespaces[ns_str]:
+                for regex_obj in service.namespaces[ns_str]:
                     txn.execute(
                         "INSERT INTO application_services_regex("
                         "as_id, namespace, regex) values(?,?,?)",
-                        (as_id, ns_int, regex)
+                        (as_id, ns_int, simplejson.dumps(regex_obj))
                     )
         return True
 
@@ -215,10 +223,12 @@ class ApplicationServiceStore(SQLBaseStore):
             try:
                 services[as_token]["namespaces"][
                     ApplicationService.NS_LIST[ns_int]].append(
-                    res["regex"]
+                    simplejson.loads(res["regex"])
                 )
             except IndexError:
                 logger.error("Bad namespace enum '%s'. %s", ns_int, res)
+            except JSONDecodeError:
+                logger.error("Bad regex object '%s'", res["regex"])
 
         # TODO get last successful txn id f.e. service
         for service in services.values():