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authorErik Johnston <erik@matrix.org>2015-10-16 15:35:35 +0100
committerErik Johnston <erik@matrix.org>2015-10-16 15:35:35 +0100
commit33646eb000e99abd4d9174276b105a4d0f00cfef (patch)
tree903158f9fd9ae20e1b025f3e974ec40f132fa276 /synapse/util/third_party_invites.py
parentRemove unused import (diff)
parentMerge pull request #311 from matrix-org/markjh/postgres_fixes (diff)
downloadsynapse-33646eb000e99abd4d9174276b105a4d0f00cfef.tar.xz
Merge branch 'develop' of github.com:matrix-org/synapse into erikj/search
Diffstat (limited to 'synapse/util/third_party_invites.py')
-rw-r--r--synapse/util/third_party_invites.py69
1 files changed, 69 insertions, 0 deletions
diff --git a/synapse/util/third_party_invites.py b/synapse/util/third_party_invites.py
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+++ b/synapse/util/third_party_invites.py
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+# -*- coding: utf-8 -*-
+# Copyright 2015 OpenMarket 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.
+
+from twisted.internet import defer
+from synapse.api.errors import AuthError
+
+
+INVITE_KEYS = {"id_server", "medium", "address", "display_name"}
+
+JOIN_KEYS = {
+    "token",
+    "public_key",
+    "key_validity_url",
+    "signatures",
+    "sender",
+}
+
+
+def has_invite_keys(content):
+    for key in INVITE_KEYS:
+        if key not in content:
+            return False
+    return True
+
+
+def has_join_keys(content):
+    for key in JOIN_KEYS:
+        if key not in content:
+            return False
+    return True
+
+
+def join_has_third_party_invite(content):
+    if "third_party_invite" not in content:
+        return False
+    return has_join_keys(content["third_party_invite"])
+
+
+def extract_join_keys(src):
+    return {
+        key: value
+        for key, value in src.items()
+        if key in JOIN_KEYS
+    }
+
+
+@defer.inlineCallbacks
+def check_key_valid(http_client, event):
+    try:
+        response = yield http_client.get_json(
+            event.content["third_party_invite"]["key_validity_url"],
+            {"public_key": event.content["third_party_invite"]["public_key"]}
+        )
+    except Exception:
+        raise AuthError(502, "Third party certificate could not be checked")
+    if "valid" not in response or not response["valid"]:
+        raise AuthError(403, "Third party certificate was invalid")