From 753ea38654d2eac08acaf9f1f809b7b2a27f7a7d Mon Sep 17 00:00:00 2001
From: David Baker <dave@matrix.org>
Date: Tue, 15 Aug 2017 14:01:50 +0100
Subject: [PATCH] Add UserAddress

---
 src/UserAddress.js | 54 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 src/UserAddress.js

diff --git a/src/UserAddress.js b/src/UserAddress.js
new file mode 100644
index 0000000000..9eee48629d
--- /dev/null
+++ b/src/UserAddress.js
@@ -0,0 +1,54 @@
+/*
+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.
+*/
+
+const emailRegex = /^\S+@\S+\.\S+$/;
+
+const mxidRegex = /^@\S+:\S+$/;
+
+import PropTypes from 'prop-types';
+export const addressTypes = [
+    'mx', 'email',
+];
+
+// PropType definition for an object describing
+// an address that can be invited to a room (which
+// could be a third party identifier or a matrix ID)
+// along with some additional information about the
+// address / target.
+export const UserAddressType = PropTypes.shape({
+    addressType: PropTypes.oneOf(addressTypes).isRequired,
+    address: PropTypes.string.isRequired,
+    displayName: PropTypes.string,
+    avatarMxc: PropTypes.string,
+    // true if the address is known to be a valid address (eg. is a real
+    // user we've seen) or false otherwise (eg. is just an address the
+    // user has entered)
+    isKnown: PropTypes.bool,
+});
+
+export function getAddressType(inputText) {
+    const isEmailAddress = emailRegex.test(inputText);
+    const isMatrixId = mxidRegex.test(inputText);
+
+    // sanity check the input for user IDs
+    if (isEmailAddress) {
+        return 'email';
+    } else if (isMatrixId) {
+        return 'mx';
+    } else {
+        return null;
+    }
+}