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authorErik Johnston <erik@matrix.org>2017-10-02 13:52:03 +0100
committerErik Johnston <erik@matrix.org>2017-10-02 13:52:03 +0100
commitb23cb8fba8c783bf7a267bfbe33b50e010f17787 (patch)
treec43dc5b7ba3eb73bff695cae67f7c4122134a0ef /synapse/events
parentMerge pull request #2464 from rnbdsh/patch-4 (diff)
parentBump version and change log (diff)
downloadsynapse-b23cb8fba8c783bf7a267bfbe33b50e010f17787.tar.xz
Merge branch 'release-v0.23.0' of github.com:matrix-org/synapse v0.23.0
Diffstat (limited to 'synapse/events')
-rw-r--r--synapse/events/spamcheck.py38
1 files changed, 38 insertions, 0 deletions
diff --git a/synapse/events/spamcheck.py b/synapse/events/spamcheck.py
new file mode 100644
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+++ b/synapse/events/spamcheck.py
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+# -*- coding: utf-8 -*-
+# Copyright 2017 New Vector Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# 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.
+
+
+def check_event_for_spam(event):
+    """Checks if a given event is considered "spammy" by this server.
+
+    If the server considers an event spammy, then it will be rejected if
+    sent by a local user. If it is sent by a user on another server, then
+    users receive a blank event.
+
+    Args:
+        event (synapse.events.EventBase): the event to be checked
+
+    Returns:
+        bool: True if the event is spammy.
+    """
+    if not hasattr(event, "content") or "body" not in event.content:
+        return False
+
+    # for example:
+    #
+    # if "the third flower is green" in event.content["body"]:
+    #    return True
+
+    return False