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authorAndrew Morgan <1342360+anoadragon453@users.noreply.github.com>2019-08-28 14:59:26 +0200
committerGitHub <noreply@github.com>2019-08-28 14:59:26 +0200
commit71fc04069a5770a204c3514e0237d7374df257a8 (patch)
tree4f28c947443700b2512237e2184f532b22adb8a9 /synapse/util/hash.py
parentConfig templating (#5900) (diff)
downloadsynapse-71fc04069a5770a204c3514e0237d7374df257a8.tar.xz
Use the v2 lookup API for 3PID invites (#5897)
Fixes https://github.com/matrix-org/synapse/issues/5861

Adds support for the v2 lookup API as defined in [MSC2134](https://github.com/matrix-org/matrix-doc/pull/2134). Currently this is only used for 3PID invites.

Sytest PR: https://github.com/matrix-org/sytest/pull/679
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diff --git a/synapse/util/hash.py b/synapse/util/hash.py
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+# -*- coding: utf-8 -*-
+
+# Copyright 2019 The Matrix.org Foundation C.I.C.
+#
+# 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.
+
+import hashlib
+
+import unpaddedbase64
+
+
+def sha256_and_url_safe_base64(input_text):
+    """SHA256 hash an input string, encode the digest as url-safe base64, and
+    return
+
+    :param input_text: string to hash
+    :type input_text: str
+
+    :returns a sha256 hashed and url-safe base64 encoded digest
+    :rtype: str
+    """
+    digest = hashlib.sha256(input_text.encode()).digest()
+    return unpaddedbase64.encode_base64(digest, urlsafe=True)