Merge branch 'experimental' into bwindels/rightpanelbelowheader

.eslintignore.errorfiles

@@ -7,11 +7,8 @@ src/component-index.js
 src/components/structures/BottomLeftMenu.js
 src/components/structures/CompatibilityPage.js
 src/components/structures/CreateRoom.js
-src/components/structures/HomePage.js
-src/components/structures/LeftPanel.js
 src/components/structures/LoggedInView.js
 src/components/structures/login/ForgotPassword.js
-src/components/structures/LoginBox.js
 src/components/structures/MessagePanel.js
 src/components/structures/NotificationPanel.js
 src/components/structures/RoomDirectory.js
@@ -22,22 +19,17 @@ src/components/structures/SearchBox.js
 src/components/structures/TimelinePanel.js
 src/components/structures/UploadBar.js
 src/components/structures/UserSettings.js
-src/components/structures/ViewSource.js
 src/components/views/avatars/BaseAvatar.js
 src/components/views/avatars/MemberAvatar.js
 src/components/views/create_room/RoomAlias.js
-src/components/views/dialogs/ChangelogDialog.js
 src/components/views/dialogs/DeactivateAccountDialog.js
 src/components/views/dialogs/SetPasswordDialog.js
 src/components/views/dialogs/UnknownDeviceDialog.js
 src/components/views/directory/NetworkDropdown.js
 src/components/views/elements/AddressSelector.js
-src/components/views/elements/DeviceVerifyButtons.js
 src/components/views/elements/DirectorySearchBox.js
 src/components/views/elements/ImageView.js
-src/components/views/elements/InlineSpinner.js
 src/components/views/elements/MemberEventListSummary.js
-src/components/views/elements/Spinner.js
 src/components/views/elements/TintableSvg.js
 src/components/views/elements/UserSelector.js
 src/components/views/globals/MatrixToolbar.js
@@ -90,7 +82,6 @@ src/MatrixClientPeg.js
 src/Modal.js
 src/notifications/ContentRules.js
 src/notifications/PushRuleVectorState.js
-src/notifications/StandardActions.js
 src/notifications/VectorPushRulesDefinitions.js
 src/Notifier.js
 src/PlatformPeg.js
@@ -111,7 +102,6 @@ src/utils/MultiInviter.js
 src/utils/Receipt.js
 src/VectorConferenceHandler.js
 src/Velociraptor.js
-src/VelocityBounce.js
 src/WhoIsTyping.js
 src/wrappers/withMatrixClient.js
 test/components/structures/login/Registration-test.js

CHANGELOG.md

@@ -1,3 +1,47 @@
+Changes in [0.14.2](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v0.14.2) (2018-10-29)
+=====================================================================================================
+[Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v0.14.2-rc.1...v0.14.2)
+
+ * Fix autoreplacement of ascii emoji
+   [\#2258](https://github.com/matrix-org/matrix-react-sdk/pull/2258)
+
+Changes in [0.14.2-rc.1](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v0.14.2-rc.1) (2018-10-24)
+===============================================================================================================
+[Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v0.14.1...v0.14.2-rc.1)
+
+ * Update from Weblate.
+   [\#2244](https://github.com/matrix-org/matrix-react-sdk/pull/2244)
+ * Show the group member list again
+   [\#2223](https://github.com/matrix-org/matrix-react-sdk/pull/2223)
+ * lint: make colorScheme camel case
+   [\#2237](https://github.com/matrix-org/matrix-react-sdk/pull/2237)
+ * Change leave room button text, OK -> Leave
+   [\#2236](https://github.com/matrix-org/matrix-react-sdk/pull/2236)
+ * Move all dialog buttons to the right and fix their order
+   [\#2231](https://github.com/matrix-org/matrix-react-sdk/pull/2231)
+ * Add a bit of text to explain the purpose of the RoomPreviewSpinner
+   [\#2225](https://github.com/matrix-org/matrix-react-sdk/pull/2225)
+ * Move the login box from the left sidebar to where the composer is
+   [\#2219](https://github.com/matrix-org/matrix-react-sdk/pull/2219)
+ * Fix an error where React doesn't like value=null on a select
+   [\#2230](https://github.com/matrix-org/matrix-react-sdk/pull/2230)
+ * add missing sticker translation
+   [\#2216](https://github.com/matrix-org/matrix-react-sdk/pull/2216)
+ * Support m.login.terms during registration
+   [\#2221](https://github.com/matrix-org/matrix-react-sdk/pull/2221)
+ * Don't show the invite nag bar when peeking
+   [\#2220](https://github.com/matrix-org/matrix-react-sdk/pull/2220)
+ * Apply the user's tint once the MatrixClientPeg is moderately ready
+   [\#2214](https://github.com/matrix-org/matrix-react-sdk/pull/2214)
+ * Make rageshake use less memory
+   [\#2217](https://github.com/matrix-org/matrix-react-sdk/pull/2217)
+ * Fix autocomplete
+   [\#2212](https://github.com/matrix-org/matrix-react-sdk/pull/2212)
+ * Explain feature states in a lot more detail
+   [\#2211](https://github.com/matrix-org/matrix-react-sdk/pull/2211)
+ * Fix various lint errors
+   [\#2213](https://github.com/matrix-org/matrix-react-sdk/pull/2213)
+
 Changes in [0.14.1](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v0.14.1) (2018-10-19)
 =====================================================================================================
 [Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v0.14.0...v0.14.1)

karma.conf.js

@@ -199,12 +199,25 @@ module.exports = function (config) {
 
                     'matrix-react-sdk': path.resolve('test/skinned-sdk.js'),
                     'sinon': 'sinon/pkg/sinon.js',
+
+                    // To make webpack happy
+                    // Related: https://github.com/request/request/issues/1529
+                    // (there's no mock available for fs, so we fake a mock by using
+                    // an in-memory version of fs)
+                    "fs": "memfs",
                 },
                 modules: [
                     path.resolve('./test'),
                     "node_modules"
                 ],
             },
+            node: {
+                // Because webpack is made of fail
+                // https://github.com/request/request/issues/1529
+                // Note: 'mock' is the new 'empty'
+                net: 'mock',
+                tls: 'mock'
+            },
             devtool: 'inline-source-map',
             externals: {
                 // Don't try to bundle electron: leave it as a commonjs dependency

package.json

@@ -1,6 +1,6 @@
 {
   "name": "matrix-react-sdk",
-  "version": "0.14.1",
+  "version": "0.14.2",
   "description": "SDK for matrix.org using React",
   "author": "matrix.org",
   "repository": {
@@ -76,6 +76,7 @@
     "lodash": "^4.13.1",
     "lolex": "2.3.2",
     "matrix-js-sdk": "matrix-org/matrix-js-sdk#develop",
+    "memfs": "^2.10.1",
     "optimist": "^0.6.1",
     "pako": "^1.0.5",
     "prop-types": "^15.5.8",
@@ -100,7 +101,7 @@
   "devDependencies": {
     "babel-cli": "^6.26.0",
     "babel-core": "^6.26.3",
-    "babel-eslint": "^6.1.2",
+    "babel-eslint": "^10.0.1",
     "babel-loader": "^7.1.5",
     "babel-plugin-add-module-exports": "^0.2.1",
     "babel-plugin-transform-async-to-bluebird": "^1.1.1",
@@ -114,9 +115,9 @@
     "babel-preset-react": "^6.24.1",
     "chokidar": "^1.6.1",
     "concurrently": "^4.0.1",
-    "eslint": "^3.13.1",
+    "eslint": "^5.8.0",
     "eslint-config-google": "^0.7.1",
-    "eslint-plugin-babel": "^4.1.2",
+    "eslint-plugin-babel": "^5.2.1",
     "eslint-plugin-flowtype": "^2.30.0",
     "eslint-plugin-react": "^7.7.0",
     "estree-walker": "^0.5.0",

res/css/_common.scss

@@ -167,8 +167,7 @@ textarea {
     font-weight: 300;
     font-size: 15px;
     position: relative;
-    padding-left: 58px;
+    padding: 0 58px 36px;
-    padding-bottom: 36px;
     width: 60%;
     max-width: 704px;
     box-shadow: 0 1px 0 0 rgba(0, 0, 0, 0.2);
@@ -213,14 +212,13 @@ textarea {
 }
 
 .mx_Dialog_content {
-    margin: 24px 58px 68px 0;
+    margin: 24px 0 68px;
     font-size: 14px;
     color: $primary-fg-color;
     word-wrap: break-word;
 }
 
 .mx_Dialog_buttons {
-    padding-right: 58px;
     text-align: right;
 }
 

res/css/views/context_menus/_TagTileContextMenu.scss

@@ -25,6 +25,10 @@ limitations under the License.
     line-height: 16px;
 }
 
+.mx_TagTileContextMenu_item object {
+    pointer-events: none;
+}
+
 
 .mx_TagTileContextMenu_item_icon {
     padding-right: 8px;

res/css/views/dialogs/_DevtoolsDialog.scss

@@ -14,10 +14,6 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-.mx_DevTools_dialog {
-    padding-right: 58px;
-}
-
 .mx_DevTools_content {
     margin: 10px 0;
 }

res/css/views/dialogs/_ShareDialog.scss

@@ -14,11 +14,6 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-.mx_ShareDialog {
-    // this is to center the content
-    padding-right: 58px;
-}
-
 .mx_ShareDialog hr {
     margin-top: 25px;
     margin-bottom: 25px;

res/css/views/dialogs/_UnknownDeviceDialog.scss

@@ -20,9 +20,6 @@ limitations under the License.
     // is a pain in the ass. plus might as well make the dialog big given how
     // important it is.
     height: 100%;
-
-    // position the gemini scrollbar nicely
-    padding-right: 58px;
 }
 
 .mx_UnknownDeviceDialog {

res/css/views/elements/_RoleButton.scss

@@ -1,5 +1,5 @@
 /*
-Copyright 2107 Vector Creations Ltd
+Copyright 2017 Vector Creations Ltd
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

res/css/views/rooms/_RoomList.scss

@@ -1,6 +1,6 @@
 /*
 Copyright 2015, 2016 OpenMarket Ltd
-Copyright 2107 Vector Creations Ltd
+Copyright 2017 Vector Creations Ltd
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

src/ComposerHistoryManager.js

@@ -22,7 +22,6 @@ import _clamp from 'lodash/clamp';
 type MessageFormat = 'rich' | 'markdown';
 
 class HistoryItem {
-
     // We store history items in their native format to ensure history is accurate
     // and then convert them if our RTE has subsequently changed format.
     value: Value;

src/Entities.js

@@ -78,7 +78,6 @@ class MemberEntity extends Entity {
 }
 
 class UserEntity extends Entity {
-
     constructor(model, showInviteButton, inviteFn) {
         super(model);
         this.showInviteButton = Boolean(showInviteButton);

src/HtmlUtils.js

@@ -64,7 +64,7 @@ export function containsEmoji(str) {
  * because we want to include emoji shortnames in title text
  */
 function unicodeToImage(str) {
-    let replaceWith, unicode, alt, short, fname;
+    let replaceWith; let unicode; let alt; let short; let fname;
     const mappedUnicode = emojione.mapUnicodeToShort();
 
     str = str.replace(emojione.regUnicode, function(unicodeChar) {

src/PasswordReset.js

@@ -25,7 +25,6 @@ import { _t } from './languageHandler';
  * API on the homeserver in question with the new password.
  */
 class PasswordReset {
-
     /**
      * Configure the endpoints for password resetting.
      * @param {string} homeserverUrl The URL to the HS which has the account to reset.

src/Presence.js

@@ -23,7 +23,6 @@ const UNAVAILABLE_TIME_MS = 3 * 60 * 1000; // 3 mins
 const PRESENCE_STATES = ["online", "offline", "unavailable"];
 
 class Presence {
-
     /**
      * Start listening the user activity to evaluate his presence state.
      * Any state change will be sent to the Home Server.

src/Rooms.js

@@ -32,7 +32,6 @@ export function getDisplayAliasForRoom(room) {
  * return the other one. Otherwise, return null.
  */
 export function getOnlyOtherMember(room, myUserId) {
-
     if (room.currentState.getJoinedMemberCount() === 2) {
         return room.getJoinedMembers().filter(function(m) {
             return m.userId !== myUserId;
@@ -103,7 +102,7 @@ export function guessAndSetDMRoom(room, isDirect) {
     let newTarget;
     if (isDirect) {
         const guessedUserId = guessDMRoomTargetId(
-            room, MatrixClientPeg.get().getUserId()
+            room, MatrixClientPeg.get().getUserId(),
         );
         newTarget = guessedUserId;
     } else {

src/ScalarAuthClient.js

@@ -22,7 +22,6 @@ const SdkConfig = require('./SdkConfig');
 const MatrixClientPeg = require('./MatrixClientPeg');
 
 class ScalarAuthClient {
-
     constructor() {
         this.scalarToken = null;
     }

src/SdkConfig.js

@@ -24,7 +24,6 @@ const DEFAULTS = {
 };
 
 class SdkConfig {
-
     static get() {
         return global.mxReactSdkConfig || {};
     }

src/UserActivity.js

@@ -25,7 +25,6 @@ const CURRENTLY_ACTIVE_THRESHOLD_MS = 2000;
  * with the app (but at a much lower frequency than mouse move events)
  */
 class UserActivity {
-
     /**
      * Start listening to user activity
      */

src/UserSettingsStore.js

@@ -87,7 +87,7 @@ export default {
             device_display_name: address,
             lang: navigator.language,
             data: data,
-            append: true,  // We always append for email pushers since we don't want to stop other accounts notifying to the same email address
+            append: true, // We always append for email pushers since we don't want to stop other accounts notifying to the same email address
         });
     },
 };

src/VelocityBounce.js

@@ -3,8 +3,8 @@ const Velocity = require('velocity-vector');
 // courtesy of https://github.com/julianshapiro/velocity/issues/283
 // We only use easeOutBounce (easeInBounce is just sort of nonsensical)
 function bounce( p ) {
-    let pow2,
+    let pow2;
-        bounce = 4;
+    let bounce = 4;
 
     while ( p < ( ( pow2 = Math.pow( 2, --bounce ) ) - 1 ) / 11 ) {
         // just sets pow2

src/autocomplete/Autocompleter.js

@@ -85,7 +85,7 @@ export default class Autocompleter {
                 provider
                     .getCompletions(query, selection, force)
                     .timeout(PROVIDER_COMPLETION_TIMEOUT)
-                    .reflect()
+                    .reflect(),
             ),
         );
 

src/autocomplete/CommunityProvider.js

@@ -61,7 +61,7 @@ export default class CommunityProvider extends AutocompleteProvider {
         if (command) {
             const joinedGroups = cli.getGroups().filter(({myMembership}) => myMembership === 'join');
 
-            const groups = (await Promise.all(joinedGroups.map(async ({groupId}) => {
+            const groups = (await Promise.all(joinedGroups.map(async({groupId}) => {
                 try {
                     return FlairStore.getGroupProfileCached(cli, groupId);
                 } catch (e) { // if FlairStore failed, fall back to just groupId

src/autocomplete/PlainWithPillsSerializer.js

@@ -26,7 +26,6 @@ import { Block } from 'slate';
  */
 
 class PlainWithPillsSerializer {
-
     /*
      * @param {String} options.pillFormat - either 'md', 'plain', 'id'
      */

src/components/structures/BottomLeftMenu.js

@@ -33,12 +33,12 @@ module.exports = React.createClass({
     },
 
     getInitialState: function() {
-        return({
+        return ({
-            directoryHover : false,
+            directoryHover: false,
-            roomsHover : false,
+            roomsHover: false,
             homeHover: false,
-            peopleHover : false,
+            peopleHover: false,
-            settingsHover : false,
+            settingsHover: false,
         });
     },
 
@@ -145,7 +145,7 @@ module.exports = React.createClass({
     // Get the label/tooltip to show
     getLabel: function(label, show) {
         if (show) {
-            var RoomTooltip = sdk.getComponent("rooms.RoomTooltip");
+            const RoomTooltip = sdk.getComponent("rooms.RoomTooltip");
             return <RoomTooltip className="mx_BottomLeftMenu_tooltip" label={label} />;
         }
     },

src/components/structures/CompatibilityPage.js

@@ -16,18 +16,18 @@ limitations under the License.
 
 'use strict';
 
-var React = require('react');
+const React = require('react');
 import { _t } from '../../languageHandler';
 
 module.exports = React.createClass({
     displayName: 'CompatibilityPage',
     propTypes: {
-        onAccept: React.PropTypes.func
+        onAccept: React.PropTypes.func,
     },
 
     getDefaultProps: function() {
         return {
-            onAccept: function() {} // NOP
+            onAccept: function() {}, // NOP
         };
     },
 
@@ -36,7 +36,6 @@ module.exports = React.createClass({
     },
 
     render: function() {
-
         return (
         <div className="mx_CompatibilityPage">
             <div className="mx_CompatibilityPage_box">
@@ -69,5 +68,5 @@ module.exports = React.createClass({
             </div>
         </div>
         );
-    }
+    },
 });

src/components/structures/GroupView.js

@@ -780,7 +780,7 @@ export default React.createClass({
             ),
             button: _t("Leave"),
             danger: this.state.isUserPrivileged,
-            onFinished: async (confirmed) => {
+            onFinished: async(confirmed) => {
                 if (!confirmed) return;
 
                 this.setState({membershipBusy: true});

src/components/structures/HomePage.js

@@ -52,15 +52,14 @@ class HomePage extends React.Component {
 
         if (this.props.teamToken && this.props.teamServerUrl) {
             this.setState({
-                iframeSrc: `${this.props.teamServerUrl}/static/${this.props.teamToken}/home.html`
+                iframeSrc: `${this.props.teamServerUrl}/static/${this.props.teamToken}/home.html`,
             });
-        }
+        } else {
-        else {
             // we use request() to inline the homepage into the react component
             // so that it can inherit CSS and theming easily rather than mess around
             // with iframes and trying to synchronise document.stylesheets.
 
-            let src = this.props.homePageUrl || 'home.html';
+            const src = this.props.homePageUrl || 'home.html';
 
             request(
                 { method: "GET", url: src },
@@ -77,7 +76,7 @@ class HomePage extends React.Component {
 
                     body = body.replace(/_t\(['"]([\s\S]*?)['"]\)/mg, (match, g1)=>this.translate(g1));
                     this.setState({ page: body });
-                }
+                },
             );
         }
     }
@@ -93,8 +92,7 @@ class HomePage extends React.Component {
                     <iframe src={ this.state.iframeSrc } />
                 </div>
             );
-        }
+        } else {
-        else {
             const GeminiScrollbarWrapper = sdk.getComponent("elements.GeminiScrollbarWrapper");
             return (
                 <GeminiScrollbarWrapper autoshow={true} className="mx_HomePage">

src/components/structures/LeftPanel.js

@@ -28,7 +28,7 @@ import VectorConferenceHandler from '../../VectorConferenceHandler';
 import SettingsStore from '../../settings/SettingsStore';
 
 
-var LeftPanel = React.createClass({
+const LeftPanel = React.createClass({
     displayName: 'LeftPanel',
 
     // NB. If you add props, don't forget to update
@@ -214,7 +214,7 @@ var LeftPanel = React.createClass({
             </div>
         );
         // <BottomLeftMenu collapsed={this.props.collapsed}/>
-    }
+    },
 });
 
 module.exports = LeftPanel;

src/components/structures/LoggedInView.js

@@ -65,6 +65,9 @@ const LoggedInView = React.createClass({
 
         teamToken: PropTypes.string,
 
+        // Used by the RoomView to handle joining rooms
+        viaServers: PropTypes.arrayOf(PropTypes.string),
+
         // and lots and lots of other stuff.
     },
 
@@ -433,6 +436,7 @@ const LoggedInView = React.createClass({
                         onRegistered={this.props.onRegistered}
                         thirdPartyInvite={this.props.thirdPartyInvite}
                         oobData={this.props.roomOobData}
+                        viaServers={this.props.viaServers}
                         eventPixelOffset={this.props.initialEventPixelOffset}
                         key={this.props.currentRoomId || 'roomview'}
                         disabled={this.props.middleDisabled}

src/components/structures/LoginBox.js

@@ -53,5 +53,5 @@ module.exports = React.createClass({
                 { loginButton }
             </div>
         );
-    }
+    },
 });

src/components/structures/MatrixChat.js

@@ -840,6 +840,7 @@ export default React.createClass({
             page_type: PageTypes.RoomView,
             thirdPartyInvite: roomInfo.third_party_invite,
             roomOobData: roomInfo.oob_data,
+            viaServers: roomInfo.via_servers,
         };
 
         if (roomInfo.room_alias) {
@@ -1489,9 +1490,21 @@ export default React.createClass({
                 inviterName: params.inviter_name,
             };
 
+            // on our URLs there might be a ?via=matrix.org or similar to help
+            // joins to the room succeed. We'll pass these through as an array
+            // to other levels. If there's just one ?via= then params.via is a
+            // single string. If someone does something like ?via=one.com&via=two.com
+            // then params.via is an array of strings.
+            let via = [];
+            if (params.via) {
+                if (typeof(params.via) === 'string') via = [params.via];
+                else via = params.via;
+            }
+
             const payload = {
                 action: 'view_room',
                 event_id: eventId,
+                via_servers: via,
                 // If an event ID is given in the URL hash, notify RoomViewStore to mark
                 // it as highlighted, which will propagate to RoomView and highlight the
                 // associated EventTile.

src/components/structures/RoomDirectory.js

@@ -16,18 +16,18 @@ limitations under the License.
 
 'use strict';
 
-var React = require('react');
+const React = require('react');
 
-var MatrixClientPeg = require('../../MatrixClientPeg');
+const MatrixClientPeg = require('../../MatrixClientPeg');
-var ContentRepo = require("matrix-js-sdk").ContentRepo;
+const ContentRepo = require("matrix-js-sdk").ContentRepo;
-var Modal = require('../../Modal');
+const Modal = require('../../Modal');
-var sdk = require('../../index');
+const sdk = require('../../index');
-var dis = require('../../dispatcher');
+const dis = require('../../dispatcher');
 
-var linkify = require('linkifyjs');
+const linkify = require('linkifyjs');
-var linkifyString = require('linkifyjs/string');
+const linkifyString = require('linkifyjs/string');
-var linkifyMatrix = require('../../linkify-matrix');
+const linkifyMatrix = require('../../linkify-matrix');
-var sanitizeHtml = require('sanitize-html');
+const sanitizeHtml = require('sanitize-html');
 import Promise from 'bluebird';
 
 import { _t } from '../../languageHandler';
@@ -46,7 +46,7 @@ module.exports = React.createClass({
     getDefaultProps: function() {
         return {
             config: {},
-        }
+        };
     },
 
     getInitialState: function() {
@@ -58,7 +58,7 @@ module.exports = React.createClass({
             includeAll: false,
             roomServer: null,
             filterString: null,
-        }
+        };
     },
 
     componentWillMount: function() {
@@ -134,13 +134,12 @@ module.exports = React.createClass({
             opts.include_all_networks = true;
         }
         if (this.nextBatch) opts.since = this.nextBatch;
-        if (my_filter_string) opts.filter = { generic_search_term: my_filter_string } ;
+        if (my_filter_string) opts.filter = { generic_search_term: my_filter_string };
         return MatrixClientPeg.get().publicRooms(opts).then((data) => {
             if (
                 my_filter_string != this.state.filterString ||
                 my_server != this.state.roomServer ||
-                my_next_batch != this.nextBatch)
+                my_next_batch != this.nextBatch) {
-            {
                 // if the filter or server has changed since this request was sent,
                 // throw away the result (don't even clear the busy flag
                 // since we must still have a request in flight)
@@ -163,8 +162,7 @@ module.exports = React.createClass({
             if (
                 my_filter_string != this.state.filterString ||
                 my_server != this.state.roomServer ||
-                my_next_batch != this.nextBatch)
+                my_next_batch != this.nextBatch) {
-            {
                 // as above: we don't care about errors for old
                 // requests either
                 return;
@@ -177,10 +175,10 @@ module.exports = React.createClass({
 
             this.setState({ loading: false });
             console.error("Failed to get publicRooms: %s", JSON.stringify(err));
-            var ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
+            const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
             Modal.createTrackedDialog('Failed to get public room list', '', ErrorDialog, {
                 title: _t('Failed to get public room list'),
-                description: ((err && err.message) ? err.message : _t('The server may be unavailable or overloaded'))
+                description: ((err && err.message) ? err.message : _t('The server may be unavailable or overloaded')),
             });
         });
     },
@@ -193,13 +191,13 @@ module.exports = React.createClass({
      * this needs SPEC-417.
      */
     removeFromDirectory: function(room) {
-        var alias = get_display_alias_for_room(room);
+        const alias = get_display_alias_for_room(room);
-        var name = room.name || alias || _t('Unnamed room');
+        const name = room.name || alias || _t('Unnamed room');
 
-        var QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
+        const QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
-        var ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
+        const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
 
-        var desc;
+        let desc;
         if (alias) {
             desc = _t('Delete the room alias %(alias)s and remove %(name)s from the directory?', {alias: alias, name: name});
         } else {
@@ -212,9 +210,9 @@ module.exports = React.createClass({
             onFinished: (should_delete) => {
                 if (!should_delete) return;
 
-                var Loader = sdk.getComponent("elements.Spinner");
+                const Loader = sdk.getComponent("elements.Spinner");
-                var modal = Modal.createDialog(Loader);
+                const modal = Modal.createDialog(Loader);
-                var step = _t('remove %(name)s from the directory.', {name: name});
+                let step = _t('remove %(name)s from the directory.', {name: name});
 
                 MatrixClientPeg.get().setRoomDirectoryVisibility(room.room_id, 'private').then(() => {
                     if (!alias) return;
@@ -229,10 +227,10 @@ module.exports = React.createClass({
                     console.error("Failed to " + step + ": " + err);
                     Modal.createTrackedDialog('Remove from Directory Error', '', ErrorDialog, {
                         title: _t('Error'),
-                        description: ((err && err.message) ? err.message : _t('The server may be unavailable or overloaded'))
+                        description: ((err && err.message) ? err.message : _t('The server may be unavailable or overloaded')),
                     });
                 });
-            }
+            },
         });
     },
 
@@ -347,7 +345,7 @@ module.exports = React.createClass({
     },
 
     showRoom: function(room, room_alias) {
-        var payload = {action: 'view_room'};
+        const payload = {action: 'view_room'};
         if (room) {
             // Don't let the user view a room they won't be able to either
             // peek or join: fail earlier so they don't have to click back
@@ -383,16 +381,16 @@ module.exports = React.createClass({
     },
 
     getRows: function() {
-        var BaseAvatar = sdk.getComponent('avatars.BaseAvatar');
+        const BaseAvatar = sdk.getComponent('avatars.BaseAvatar');
 
         if (!this.state.publicRooms) return [];
 
-        var rooms = this.state.publicRooms;
+        const rooms = this.state.publicRooms;
-        var rows = [];
+        const rows = [];
-        var self = this;
+        const self = this;
-        var guestRead, guestJoin, perms;
+        let guestRead; let guestJoin; let perms;
-        for (var i = 0; i < rooms.length; i++) {
+        for (let i = 0; i < rooms.length; i++) {
-            var name = rooms[i].name || get_display_alias_for_room(rooms[i]) || _t('Unnamed room');
+            const name = rooms[i].name || get_display_alias_for_room(rooms[i]) || _t('Unnamed room');
             guestRead = null;
             guestJoin = null;
 
@@ -412,7 +410,7 @@ module.exports = React.createClass({
                 perms = <div className="mx_RoomDirectory_perms">{guestRead}{guestJoin}</div>;
             }
 
-            var topic = rooms[i].topic || '';
+            let topic = rooms[i].topic || '';
             topic = linkifyString(sanitizeHtml(topic));
 
             rows.push(
@@ -432,14 +430,14 @@ module.exports = React.createClass({
                         <div className="mx_RoomDirectory_name">{ name }</div>&nbsp;
                         { perms }
                         <div className="mx_RoomDirectory_topic"
-                             onClick={ function(e) { e.stopPropagation() } }
+                             onClick={ function(e) { e.stopPropagation(); } }
-                             dangerouslySetInnerHTML={{ __html: topic }}/>
+                             dangerouslySetInnerHTML={{ __html: topic }} />
                         <div className="mx_RoomDirectory_alias">{ get_display_alias_for_room(rooms[i]) }</div>
                     </td>
                     <td className="mx_RoomDirectory_roomMemberCount">
                         { rooms[i].num_joined_members }
                     </td>
-                </tr>
+                </tr>,
             );
         }
         return rows;
@@ -524,7 +522,7 @@ module.exports = React.createClass({
                 onFillRequest={ this.onFillRequest }
                 stickyBottom={false}
                 startAtBottom={false}
-                onResize={function(){}}
+                onResize={function() {}}
             >
                 { scrollpanel_content }
             </ScrollPanel>;
@@ -577,11 +575,11 @@ module.exports = React.createClass({
                 </div>
             </div>
         );
-    }
+    },
 });
 
 // Similar to matrix-react-sdk's MatrixTools.getDisplayAliasForRoom
 // but works with the objects we get from the public room list
 function get_display_alias_for_room(room) {
-    return  room.canonical_alias || (room.aliases ? room.aliases[0] : "");
+    return room.canonical_alias || (room.aliases ? room.aliases[0] : "");
 }

src/components/structures/RoomStatusBar.js

@@ -37,7 +37,7 @@ function getUnsentMessages(room) {
     return room.getPendingEvents().filter(function(ev) {
         return ev.status === Matrix.EventStatus.NOT_SENT;
     });
-};
+}
 
 module.exports = React.createClass({
     displayName: 'RoomStatusBar',
@@ -303,7 +303,7 @@ module.exports = React.createClass({
         const errorIsMauError = Boolean(
             this.state.syncStateData &&
             this.state.syncStateData.error &&
-            this.state.syncStateData.error.errcode === 'M_RESOURCE_LIMIT_EXCEEDED'
+            this.state.syncStateData.error.errcode === 'M_RESOURCE_LIMIT_EXCEEDED',
         );
         return this.state.syncState === "ERROR" && !errorIsMauError;
     },

src/components/structures/RoomView.js

@@ -90,6 +90,9 @@ module.exports = React.createClass({
 
         // is the RightPanel collapsed?
         collapsedRhs: PropTypes.bool,
+
+        // Servers the RoomView can use to try and assist joins
+        viaServers: PropTypes.arrayOf(PropTypes.string),
     },
 
     getInitialState: function() {
@@ -835,7 +838,7 @@ module.exports = React.createClass({
                 action: 'do_after_sync_prepared',
                 deferred_action: {
                     action: 'join_room',
-                    opts: { inviteSignUrl: signUrl },
+                    opts: { inviteSignUrl: signUrl, viaServers: this.props.viaServers },
                 },
             });
 
@@ -877,7 +880,7 @@ module.exports = React.createClass({
                 this.props.thirdPartyInvite.inviteSignUrl : undefined;
             dis.dispatch({
                 action: 'join_room',
-                opts: { inviteSignUrl: signUrl },
+                opts: { inviteSignUrl: signUrl, viaServers: this.props.viaServers },
             });
             return Promise.resolve();
         });
@@ -1676,7 +1679,7 @@ module.exports = React.createClass({
             </AuxPanel>
         );
 
-        let messageComposer, searchInfo;
+        let messageComposer; let searchInfo;
         const canSpeak = (
             // joined and not showing search results
             myMembership === 'join' && !this.state.searchResults
@@ -1695,7 +1698,7 @@ module.exports = React.createClass({
 
         if (MatrixClientPeg.get().isGuest()) {
             const LoginBox = sdk.getComponent('structures.LoginBox');
-            messageComposer = <LoginBox/>;
+            messageComposer = <LoginBox />;
         }
 
         // TODO: Why aren't we storing the term/scope/count in this format
@@ -1709,7 +1712,7 @@ module.exports = React.createClass({
         }
 
         if (inCall) {
-            let zoomButton, voiceMuteButton, videoMuteButton;
+            let zoomButton; let voiceMuteButton; let videoMuteButton;
 
             if (call.type === "video") {
                 zoomButton = (

src/components/structures/SearchBox.js

@@ -72,7 +72,7 @@ module.exports = React.createClass({
         function() {
             this.props.onSearch(this.refs.search.value);
         },
-        100
+        100,
     ),
 
     onToggleCollapse: function(show) {
@@ -80,8 +80,7 @@ module.exports = React.createClass({
             dis.dispatch({
                 action: 'show_left_panel',
             });
-        }
+        } else {
-        else {
             dis.dispatch({
                 action: 'hide_left_panel',
             });
@@ -103,25 +102,24 @@ module.exports = React.createClass({
     },
 
     render: function() {
-        var TintableSvg = sdk.getComponent('elements.TintableSvg');
+        const TintableSvg = sdk.getComponent('elements.TintableSvg');
 
-        var collapseTabIndex = this.refs.search && this.refs.search.value !== "" ? "-1" : "0";
+        const collapseTabIndex = this.refs.search && this.refs.search.value !== "" ? "-1" : "0";
 
-        var toggleCollapse;
+        let toggleCollapse;
         if (this.props.collapsed) {
             toggleCollapse =
                 <AccessibleButton className="mx_SearchBox_maximise" tabIndex={collapseTabIndex} onClick={ this.onToggleCollapse.bind(this, true) }>
-                    <TintableSvg src="img/maximise.svg" width="10" height="16" alt={ _t("Expand panel") }/>
+                    <TintableSvg src="img/maximise.svg" width="10" height="16" alt={ _t("Expand panel") } />
-                </AccessibleButton>
+                </AccessibleButton>;
-        }
+        } else {
-        else {
             toggleCollapse =
                 <AccessibleButton className="mx_SearchBox_minimise" tabIndex={collapseTabIndex} onClick={ this.onToggleCollapse.bind(this, false) }>
-                    <TintableSvg src="img/minimise.svg" width="10" height="16" alt={ _t("Collapse panel") }/>
+                    <TintableSvg src="img/minimise.svg" width="10" height="16" alt={ _t("Collapse panel") } />
-                </AccessibleButton>
+                </AccessibleButton>;
         }
 
-        var searchControls;
+        let searchControls;
         if (!this.props.collapsed) {
             searchControls = [
                     this.state.searchTerm.length > 0 ?
@@ -148,16 +146,16 @@ module.exports = React.createClass({
                         onChange={ this.onChange }
                         onKeyDown={ this._onKeyDown }
                         placeholder={ _t('Filter room names') }
-                    />
+                    />,
                 ];
         }
 
-        var self = this;
+        const self = this;
         return (
             <div className="mx_SearchBox">
                 { searchControls }
                 { toggleCollapse }
             </div>
         );
-    }
+    },
 });

src/components/structures/TimelinePanel.js

@@ -829,7 +829,7 @@ var TimelinePanel = React.createClass({
         // 4. Also, if pos === null, the event might not be paginated - show the unread bar
         const pos = this.getReadMarkerPosition();
         return this.state.readMarkerEventId !== null && // 1.
-            this.state.readMarkerEventId !== this._getCurrentReadReceipt() &&  // 2.
+            this.state.readMarkerEventId !== this._getCurrentReadReceipt() && // 2.
             (pos < 0 || pos === null); // 3., 4.
     },
 

src/components/structures/UserSettings.js

@@ -846,7 +846,7 @@ module.exports = React.createClass({
         SettingsStore.getLabsFeatures().forEach((featureId) => {
             // TODO: this ought to be a separate component so that we don't need
             // to rebind the onChange each time we render
-            const onChange = async (e) => {
+            const onChange = async(e) => {
                 const checked = e.target.checked;
                 if (featureId === "feature_lazyloading") {
                     const confirmed = await this._onLazyLoadChanging(checked);
@@ -1299,7 +1299,7 @@ module.exports = React.createClass({
         // If the olmVersion is not defined then either crypto is disabled, or
         // we are using a version old version of olm. We assume the former.
         let olmVersionString = "<not-enabled>";
-        if (olmVersion !== undefined) {
+        if (olmVersion) {
             olmVersionString = `${olmVersion[0]}.${olmVersion[1]}.${olmVersion[2]}`;
         }
 

src/components/structures/ViewSource.js

@@ -53,5 +53,5 @@ module.exports = React.createClass({
                 </SyntaxHighlight>
             </div>
         );
-    }
+    },
 });

src/components/views/avatars/MemberAvatar.js

@@ -79,7 +79,7 @@ module.exports = React.createClass({
         const BaseAvatar = sdk.getComponent("avatars.BaseAvatar");
 
         let {member, fallbackUserId, onClick, viewUserOnClick, ...otherProps} = this.props;
-        let userId = member ? member.userId : fallbackUserId;
+        const userId = member ? member.userId : fallbackUserId;
 
         if (viewUserOnClick) {
             onClick = () => {

src/components/views/context_menus/GroupInviteTileContextMenu.js

@@ -48,7 +48,7 @@ export default class GroupInviteTileContextMenu extends React.Component {
         Modal.createTrackedDialog('Reject community invite', '', QuestionDialog, {
             title: _t('Reject invitation'),
             description: _t('Are you sure you want to reject the invitation?'),
-            onFinished: async (shouldLeave) => {
+            onFinished: async(shouldLeave) => {
                 if (!shouldLeave) return;
 
                 // FIXME: controller shouldn't be loading a view :(

src/components/views/dialogs/ChangelogDialog.js

@@ -31,13 +31,13 @@ export default class ChangelogDialog extends React.Component {
     componentDidMount() {
         const version = this.props.newVersion.split('-');
         const version2 = this.props.version.split('-');
-        if(version == null || version2 == null) return;
+        if (version == null || version2 == null) return;
         // parse versions of form: [vectorversion]-react-[react-sdk-version]-js-[js-sdk-version]
-        for(let i=0; i<REPOS.length; i++) {
+        for (let i=0; i<REPOS.length; i++) {
             const oldVersion = version2[2*i];
             const newVersion = version[2*i];
             request(`https://api.github.com/repos/${REPOS[i]}/compare/${oldVersion}...${newVersion}`, (a, b, body) => {
-                if(body == null) return;
+                if (body == null) return;
                 this.setState({[REPOS[i]]: JSON.parse(body).commits});
             });
         }
@@ -66,7 +66,7 @@ export default class ChangelogDialog extends React.Component {
                     {this.state[repo].map(this._elementsForCommit)}
                     </ul>
                 </div>
-            )
+            );
         });
 
         const content = (
@@ -83,7 +83,7 @@ export default class ChangelogDialog extends React.Component {
                 button={_t("Update")}
                 onFinished={this.props.onFinished}
                 />
-        )
+        );
     }
 }
 

src/components/views/dialogs/ChatCreateOrReuseDialog.js

@@ -26,7 +26,6 @@ import Unread from '../../../Unread';
 import classNames from 'classnames';
 
 export default class ChatCreateOrReuseDialog extends React.Component {
-
     constructor(props) {
         super(props);
         this.onFinished = this.onFinished.bind(this);

src/components/views/dialogs/CreateGroupDialog.js

@@ -57,7 +57,7 @@ export default React.createClass({
         let error = null;
         if (!this.state.groupId) {
             error = _t("Community IDs cannot be empty.");
-        } else if (!/^[a-z0-9=_\-\.\/]*$/.test(this.state.groupId)) {
+        } else if (!/^[a-z0-9=_\-./]*$/.test(this.state.groupId)) {
             error = _t("Community IDs may only contain characters a-z, 0-9, or '=_-./'");
         }
         this.setState({

src/components/views/dialogs/DevtoolsDialog.js

@@ -625,7 +625,7 @@ export default class DevtoolsDialog extends React.Component {
         let body;
 
         if (this.state.mode) {
-            body = <div className="mx_DevTools_dialog">
+            body = <div>
                 <div className="mx_DevTools_label_left">{ this.state.mode.getLabel() }</div>
                 <div className="mx_DevTools_label_right">Room ID: { this.props.roomId }</div>
                 <div className="mx_DevTools_label_bottom" />
@@ -634,7 +634,7 @@ export default class DevtoolsDialog extends React.Component {
         } else {
             const classes = "mx_DevTools_RoomStateExplorer_button";
             body = <div>
-                <div className="mx_DevTools_dialog">
+                <div>
                     <div className="mx_DevTools_label_left">{ _t('Toolbox') }</div>
                     <div className="mx_DevTools_label_right">Room ID: { this.props.roomId }</div>
                     <div className="mx_DevTools_label_bottom" />

src/components/views/directory/NetworkDropdown.js

@@ -153,8 +153,8 @@ export default class NetworkDropdown extends React.Component {
 
                         const sortedInstances = this.props.protocols[proto].instances;
                         sortedInstances.sort(function(x, y) {
-                            const a = x.desc
+                            const a = x.desc;
-                            const b = y.desc
+                            const b = y.desc;
                             if (a < b) {
                                 return -1;
                             } else if (a > b) {
@@ -208,7 +208,7 @@ export default class NetworkDropdown extends React.Component {
         return <div key={key} className="mx_NetworkDropdown_networkoption" onClick={click_handler}>
             {icon}
             <span className="mx_NetworkDropdown_menu_network">{name}</span>
-        </div>
+        </div>;
     }
 
     render() {
@@ -223,11 +223,11 @@ export default class NetworkDropdown extends React.Component {
             current_value = <input type="text" className="mx_NetworkDropdown_networkoption"
                 ref={this.collectInputTextBox} onKeyUp={this.onInputKeyUp}
                 placeholder="matrix.org" // 'matrix.org' as an example of an HS name
-            />
+            />;
         } else {
             const instance = instanceForInstanceId(this.props.protocols, this.state.selectedInstanceId);
             current_value = this._makeMenuOption(
-                this.state.selectedServer, instance, this.state.includeAll, false
+                this.state.selectedServer, instance, this.state.includeAll, false,
             );
         }
 

src/components/views/elements/AppTile.js

@@ -318,6 +318,19 @@ export default class AppTile extends React.Component {
                         }
                         this.setState({deleting: true});
 
+                        // HACK: This is a really dirty way to ensure that Jitsi cleans up
+                        // its hold on the webcam. Without this, the widget holds a media
+                        // stream open, even after death. See https://github.com/vector-im/riot-web/issues/7351
+                        if (this.refs.appFrame) {
+                            // In practice we could just do `+= ''` to trick the browser
+                            // into thinking the URL changed, however I can foresee this
+                            // being optimized out by a browser. Instead, we'll just point
+                            // the iframe at a page that is reasonably safe to use in the
+                            // event the iframe doesn't wink away.
+                            // This is relative to where the Riot instance is located.
+                            this.refs.appFrame.src = 'about:blank';
+                        }
+
                         WidgetUtils.setRoomWidget(
                             this.props.room.roomId,
                             this.props.id,

src/components/views/elements/DeviceVerifyButtons.js

@@ -78,7 +78,7 @@ export default React.createClass({
     },
 
     render: function() {
-        let blacklistButton = null, verifyButton = null;
+        let blacklistButton = null; let verifyButton = null;
 
         if (this.state.device.isBlocked()) {
             blacklistButton = (

src/components/views/elements/EditableTextContainer.js

@@ -122,7 +122,6 @@ export default class EditableTextContainer extends React.Component {
             );
         }
     }
-
 }
 
 EditableTextContainer.propTypes = {

src/components/views/elements/ImageView.js

@@ -16,13 +16,13 @@ limitations under the License.
 
 'use strict';
 
-var React = require('react');
+const React = require('react');
 
-var MatrixClientPeg = require('../../../MatrixClientPeg');
+const MatrixClientPeg = require('../../../MatrixClientPeg');
 
 import {formatDate} from '../../../DateUtils';
-var filesize = require('filesize');
+const filesize = require('filesize');
-var AccessibleButton = require('../../../components/views/elements/AccessibleButton');
+const AccessibleButton = require('../../../components/views/elements/AccessibleButton');
 const Modal = require('../../../Modal');
 const sdk = require('../../../index');
 import { _t } from '../../../languageHandler';
@@ -69,24 +69,24 @@ module.exports = React.createClass({
         Modal.createTrackedDialog('Confirm Redact Dialog', 'Image View', ConfirmRedactDialog, {
             onFinished: (proceed) => {
                 if (!proceed) return;
-                var self = this;
+                const self = this;
                 MatrixClientPeg.get().redactEvent(
-                    this.props.mxEvent.getRoomId(), this.props.mxEvent.getId()
+                    this.props.mxEvent.getRoomId(), this.props.mxEvent.getId(),
                 ).catch(function(e) {
-                    var ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
+                    const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
                     // display error message stating you couldn't delete this.
-                    var code = e.errcode || e.statusCode;
+                    const code = e.errcode || e.statusCode;
                     Modal.createTrackedDialog('You cannot delete this image.', '', ErrorDialog, {
                         title: _t('Error'),
-                        description: _t('You cannot delete this image. (%(code)s)', {code: code})
+                        description: _t('You cannot delete this image. (%(code)s)', {code: code}),
                     });
                 }).done();
-            }
+            },
         });
     },
 
-    getName: function () {
+    getName: function() {
-        var name = this.props.name;
+        let name = this.props.name;
         if (name && this.props.link) {
             name = <a href={ this.props.link } target="_blank" rel="noopener">{ name }</a>;
         }
@@ -94,7 +94,6 @@ module.exports = React.createClass({
     },
 
     render: function() {
-
 /*
         // In theory max-width: 80%, max-height: 80% on the CSS should work
         // but in practice, it doesn't, so do it manually:
@@ -123,7 +122,7 @@ module.exports = React.createClass({
             height: displayHeight
         };
 */
-        var style, res;
+        let style; let res;
 
         if (this.props.width && this.props.height) {
             style = {
@@ -133,23 +132,22 @@ module.exports = React.createClass({
             res = style.width + "x" + style.height + "px";
         }
 
-        var size;
+        let size;
         if (this.props.fileSize) {
             size = filesize(this.props.fileSize);
         }
 
-        var size_res;
+        let size_res;
         if (size && res) {
             size_res = size + ", " + res;
-        }
+        } else {
-        else {
             size_res = size || res;
         }
 
-        var showEventMeta = !!this.props.mxEvent;
+        const showEventMeta = !!this.props.mxEvent;
 
-        var eventMeta;
+        let eventMeta;
-        if(showEventMeta) {
+        if (showEventMeta) {
             // Figure out the sender, defaulting to mxid
             let sender = this.props.mxEvent.getSender();
             const room = MatrixClientPeg.get().getRoom(this.props.mxEvent.getRoomId());
@@ -163,8 +161,8 @@ module.exports = React.createClass({
             </div>);
         }
 
-        var eventRedact;
+        let eventRedact;
-        if(showEventMeta) {
+        if (showEventMeta) {
             eventRedact = (<div className="mx_ImageView_button" onClick={this.onRedactClick}>
                 { _t('Remove') }
             </div>);
@@ -175,10 +173,10 @@ module.exports = React.createClass({
                 <div className="mx_ImageView_lhs">
                 </div>
                 <div className="mx_ImageView_content">
-                    <img src={this.props.src} style={style}/>
+                    <img src={this.props.src} style={style} />
                     <div className="mx_ImageView_labelWrapper">
                         <div className="mx_ImageView_label">
-                            <AccessibleButton className="mx_ImageView_cancel" onClick={ this.props.onFinished }><img src="img/cancel-white.svg" width="18" height="18" alt={ _t('Close') }/></AccessibleButton>
+                            <AccessibleButton className="mx_ImageView_cancel" onClick={ this.props.onFinished }><img src="img/cancel-white.svg" width="18" height="18" alt={ _t('Close') } /></AccessibleButton>
                             <div className="mx_ImageView_shim">
                             </div>
                             <div className="mx_ImageView_name">
@@ -187,7 +185,7 @@ module.exports = React.createClass({
                             { eventMeta }
                             <a className="mx_ImageView_link" href={ this.props.src } download={ this.props.name } target="_blank" rel="noopener">
                                 <div className="mx_ImageView_download">
-                                        { _t('Download this file') }<br/>
+                                        { _t('Download this file') }<br />
                                          <span className="mx_ImageView_size">{ size_res }</span>
                                 </div>
                             </a>
@@ -201,5 +199,5 @@ module.exports = React.createClass({
                 </div>
             </div>
         );
-    }
+    },
 });

src/components/views/elements/InlineSpinner.js

@@ -20,14 +20,14 @@ module.exports = React.createClass({
     displayName: 'InlineSpinner',
 
     render: function() {
-        var w = this.props.w || 16;
+        const w = this.props.w || 16;
-        var h = this.props.h || 16;
+        const h = this.props.h || 16;
-        var imgClass = this.props.imgClassName || "";
+        const imgClass = this.props.imgClassName || "";
 
         return (
             <div className="mx_InlineSpinner">
-                <img src="img/spinner.gif" width={w} height={h} className={imgClass}/>
+                <img src="img/spinner.gif" width={w} height={h} className={imgClass} />
             </div>
         );
-    }
+    },
 });

src/components/views/elements/PersistedElement.js

@@ -54,7 +54,6 @@ function getOrCreateContainer(containerId) {
  * bounding rect as the parent of PE.
  */
 export default class PersistedElement extends React.Component {
-
     static propTypes = {
         // Unique identifier for this PersistedElement instance
         // Any PersistedElements with the same persistKey will use

src/components/views/elements/Pill.js

@@ -29,7 +29,7 @@ const REGEX_MATRIXTO = new RegExp(MATRIXTO_URL_PATTERN);
 
 // For URLs of matrix.to links in the timeline which have been reformatted by
 // HttpUtils transformTags to relative links. This excludes event URLs (with `[^\/]*`)
-const REGEX_LOCAL_MATRIXTO = /^#\/(?:user|room|group)\/(([#!@+])[^\/]*)$/;
+const REGEX_LOCAL_MATRIXTO = /^#\/(?:user|room|group)\/(([#!@+])[^/]*)$/;
 
 const Pill = React.createClass({
     statics: {

src/components/views/elements/Spinner.js

@@ -16,19 +16,19 @@ limitations under the License.
 
 'use strict';
 
-var React = require('react');
+const React = require('react');
 
 module.exports = React.createClass({
     displayName: 'Spinner',
 
     render: function() {
-        var w = this.props.w || 32;
+        const w = this.props.w || 32;
-        var h = this.props.h || 32;
+        const h = this.props.h || 32;
-        var imgClass = this.props.imgClassName || "";
+        const imgClass = this.props.imgClassName || "";
         return (
             <div className="mx_Spinner">
-                <img src="img/spinner.gif" width={w} height={h} className={imgClass}/>
+                <img src="img/spinner.gif" width={w} height={h} className={imgClass} />
             </div>
         );
-    }
+    },
 });

src/components/views/elements/TintableSvgButton.js

@@ -20,7 +20,6 @@ import TintableSvg from './TintableSvg';
 import AccessibleButton from './AccessibleButton';
 
 export default class TintableSvgButton extends React.Component {
-
     constructor(props) {
         super(props);
     }

src/components/views/globals/MatrixToolbar.js

@@ -39,7 +39,7 @@ module.exports = React.createClass({
                 <div className="mx_MatrixToolbar_content">
                    { _t('You are not receiving desktop notifications') } <a className="mx_MatrixToolbar_link" onClick={ this.onClick }> { _t('Enable them now') }</a>
                 </div>
-                <AccessibleButton className="mx_MatrixToolbar_close" onClick={ this.hideToolbar } ><img src="img/cancel.svg" width="18" height="18" alt={_t('Close')}/></AccessibleButton>
+                <AccessibleButton className="mx_MatrixToolbar_close" onClick={ this.hideToolbar } ><img src="img/cancel.svg" width="18" height="18" alt={_t('Close')} /></AccessibleButton>
             </div>
         );
     },

src/components/views/globals/NewVersionBar.js

@@ -45,10 +45,10 @@ export default React.createClass({
             description: <div className="mx_MatrixToolbar_changelog">{releaseNotes}</div>,
             button: _t("Update"),
             onFinished: (update) => {
-                if(update && PlatformPeg.get()) {
+                if (update && PlatformPeg.get()) {
                     PlatformPeg.get().installUpdate();
                 }
-            }
+            },
         });
     },
 
@@ -58,10 +58,10 @@ export default React.createClass({
             version: this.props.version,
             newVersion: this.props.newVersion,
             onFinished: (update) => {
-                if(update && PlatformPeg.get()) {
+                if (update && PlatformPeg.get()) {
                     PlatformPeg.get().installUpdate();
                 }
-            }
+            },
         });
     },
 
@@ -103,5 +103,5 @@ export default React.createClass({
                 {action_button}
             </div>
         );
-    }
+    },
 });

src/components/views/globals/UpdateCheckBar.js

@@ -32,14 +32,14 @@ export default React.createClass({
     getDefaultProps: function() {
         return {
             detail: '',
-        }
+        };
     },
 
     getStatusText: function() {
         // we can't import the enum from riot-web as we don't want matrix-react-sdk
         // to depend on riot-web. so we grab it as a normal object via API instead.
         const updateCheckStatusEnum = PlatformPeg.get().getUpdateCheckStatusEnum();
-        switch(this.props.status) {
+        switch (this.props.status) {
             case updateCheckStatusEnum.ERROR:
                 return _t('Error encountered (%(errorDetail)s).', { errorDetail: this.props.detail });
             case updateCheckStatusEnum.CHECKING:
@@ -59,7 +59,7 @@ export default React.createClass({
         const message = this.getStatusText();
         const warning = _t('Warning');
 
-        if (!'getUpdateCheckStatusEnum' in PlatformPeg.get()) {
+        if (!('getUpdateCheckStatusEnum' in PlatformPeg.get())) {
             return <div></div>;
         }
 
@@ -83,9 +83,9 @@ export default React.createClass({
                     {message}
                 </div>
                 <AccessibleButton className="mx_MatrixToolbar_close" onClick={this.hideToolbar}>
-                    <img src="img/cancel.svg" width="18" height="18" alt={_t('Close')}/>
+                    <img src="img/cancel.svg" width="18" height="18" alt={_t('Close')} />
                 </AccessibleButton>
             </div>
         );
-    }
+    },
 });

src/components/views/login/InteractiveAuthEntryComponents.js

@@ -296,7 +296,7 @@ export const TermsAuthEntry = React.createClass({
             return <Loader />;
         }
 
-        let checkboxes = [];
+        const checkboxes = [];
         let allChecked = true;
         for (const policy of this.state.policies) {
             const checked = this.state.toggledPolicies[policy.id];
@@ -306,7 +306,7 @@ export const TermsAuthEntry = React.createClass({
                 <label key={"policy_checkbox_" + policy.id}>
                     <input type="checkbox" onClick={() => this._trySubmit(policy.id)} checked={checked} />
                     <a href={policy.url} target="_blank" rel="noopener">{ policy.name }</a>
-                </label>
+                </label>,
             );
         }
 

src/components/views/room_settings/AliasSettings.js

@@ -103,7 +103,7 @@ module.exports = React.createClass({
             oldCanonicalAlias = this.props.canonicalAliasEvent.getContent().alias;
         }
 
-        let newCanonicalAlias = this.state.canonicalAlias;
+        const newCanonicalAlias = this.state.canonicalAlias;
 
         if (this.props.canSetCanonicalAlias && oldCanonicalAlias !== newCanonicalAlias) {
             console.log("AliasSettings: Updating canonical alias");
@@ -167,7 +167,7 @@ module.exports = React.createClass({
 
         if (!this.props.canonicalAlias) {
             this.setState({
-                canonicalAlias: alias
+                canonicalAlias: alias,
             });
         }
     },

src/components/views/room_settings/RelatedGroupSettings.js

@@ -22,7 +22,7 @@ import { _t } from '../../../languageHandler';
 import Modal from '../../../Modal';
 import isEqual from 'lodash/isEqual';
 
-const GROUP_ID_REGEX = /\+\S+\:\S+/;
+const GROUP_ID_REGEX = /\+\S+:\S+/;
 
 module.exports = React.createClass({
     displayName: 'RelatedGroupSettings',

src/components/views/rooms/Autocomplete.js

@@ -33,7 +33,6 @@ import Autocompleter from '../../../autocomplete/Autocompleter';
 const COMPOSER_SELECTED = 0;
 
 export default class Autocomplete extends React.Component {
-
     constructor(props) {
         super(props);
 

src/components/views/rooms/LinkPreviewWidget.js

@@ -107,7 +107,7 @@ module.exports = React.createClass({
 
         // FIXME: do we want to factor out all image displaying between this and MImageBody - especially for lightboxing?
         let image = p["og:image"];
-        let imageMaxWidth = 100, imageMaxHeight = 100;
+        const imageMaxWidth = 100; const imageMaxHeight = 100;
         if (image && image.startsWith("mxc://")) {
             image = MatrixClientPeg.get().mxcUrlToHttp(image, imageMaxWidth, imageMaxHeight);
         }

src/components/views/rooms/MemberInfo.js

@@ -712,7 +712,7 @@ module.exports = withMatrixClient(React.createClass({
 
             if (!member || !member.membership || member.membership === 'leave') {
                 const roomId = member && member.roomId ? member.roomId : RoomViewStore.getRoomId();
-                const onInviteUserButton = async () => {
+                const onInviteUserButton = async() => {
                     try {
                         await cli.invite(roomId, member.userId);
                     } catch (err) {

src/components/views/rooms/MessageComposer.js

@@ -269,7 +269,7 @@ export default class MessageComposer extends React.Component {
             );
         }
 
-        let e2eImg, e2eTitle, e2eClass;
+        let e2eImg; let e2eTitle; let e2eClass;
         const roomIsEncrypted = MatrixClientPeg.get().isRoomEncrypted(this.props.room.roomId);
         if (roomIsEncrypted) {
             // FIXME: show a /!\ if there are untrusted devices in the room...
@@ -429,7 +429,7 @@ export default class MessageComposer extends React.Component {
                              className="mx_MessageComposer_formatbar_cancel mx_filterFlipColor"
                              src="img/icon-text-cancel.svg" />
                     </div>
-                </div>
+                </div>;
         }
 
         return (

src/components/views/rooms/MessageComposerInput.js

@@ -67,7 +67,7 @@ const EMOJI_UNICODE_TO_SHORTNAME = mapUnicodeToShort();
 const REGEX_EMOJI_WHITESPACE = new RegExp('(?:^|\\s)(' + asciiRegexp + ')\\s$');
 const EMOJI_REGEX = new RegExp(unicodeRegexp, 'g');
 
-const TYPING_USER_TIMEOUT = 10000, TYPING_SERVER_TIMEOUT = 30000;
+const TYPING_USER_TIMEOUT = 10000; const TYPING_SERVER_TIMEOUT = 30000;
 
 const ENTITY_TYPES = {
     AT_ROOM_PILL: 'ATROOMPILL',
@@ -175,8 +175,8 @@ export default class MessageComposerInput extends React.Component {
         // see https://github.com/ianstormtaylor/slate/issues/762#issuecomment-304855095
         this.direction = '';
 
-        this.plainWithMdPills    = new PlainWithPillsSerializer({ pillFormat: 'md' });
+        this.plainWithMdPills = new PlainWithPillsSerializer({ pillFormat: 'md' });
-        this.plainWithIdPills    = new PlainWithPillsSerializer({ pillFormat: 'id' });
+        this.plainWithIdPills = new PlainWithPillsSerializer({ pillFormat: 'id' });
         this.plainWithPlainPills = new PlainWithPillsSerializer({ pillFormat: 'plain' });
 
         this.md = new Md({
@@ -544,7 +544,7 @@ export default class MessageComposerInput extends React.Component {
 
         if (editorState.startText !== null) {
             const text = editorState.startText.text;
-            const currentStartOffset = editorState.startOffset;
+            const currentStartOffset = editorState.selection.start.offset;
 
             // Automatic replacement of plaintext emoji to Unicode emoji
             if (SettingsStore.getValue('MessageComposerInput.autoReplaceEmoji')) {
@@ -558,11 +558,11 @@ export default class MessageComposerInput extends React.Component {
 
                     const range = Range.create({
                         anchor: {
-                            key: editorState.selection.startKey,
+                            key: editorState.startText.key,
                             offset: currentStartOffset - emojiMatch[1].length - 1,
                         },
                         focus: {
-                            key: editorState.selection.startKey,
+                            key: editorState.startText.key,
                             offset: currentStartOffset - 1,
                         },
                     });
@@ -1078,7 +1078,7 @@ export default class MessageComposerInput extends React.Component {
 
         // only look for commands if the first block contains simple unformatted text
         // i.e. no pills or rich-text formatting and begins with a /.
-        let cmd, commandText;
+        let cmd; let commandText;
         const firstChild = editorState.document.nodes.get(0);
         const firstGrandChild = firstChild && firstChild.nodes.get(0);
         if (firstChild && firstGrandChild &&
@@ -1260,7 +1260,7 @@ export default class MessageComposerInput extends React.Component {
         }
     };
 
-    selectHistory = async (up) => {
+    selectHistory = async(up) => {
         const delta = up ? -1 : 1;
 
         // True if we are not currently selecting history, but composing a message
@@ -1308,7 +1308,7 @@ export default class MessageComposerInput extends React.Component {
         return true;
     };
 
-    onTab = async (e) => {
+    onTab = async(e) => {
         this.setState({
             someCompletions: null,
         });
@@ -1330,7 +1330,7 @@ export default class MessageComposerInput extends React.Component {
         up ? this.autocomplete.onUpArrow() : this.autocomplete.onDownArrow();
     };
 
-    onEscape = async (e) => {
+    onEscape = async(e) => {
         e.preventDefault();
         if (this.autocomplete) {
             this.autocomplete.onEscape(e);
@@ -1349,7 +1349,7 @@ export default class MessageComposerInput extends React.Component {
     /* If passed null, restores the original editor content from state.originalEditorState.
      * If passed a non-null displayedCompletion, modifies state.originalEditorState to compute new state.editorState.
      */
-    setDisplayedCompletion = async (displayedCompletion: ?Completion): boolean => {
+    setDisplayedCompletion = async(displayedCompletion: ?Completion): boolean => {
         const activeEditorState = this.state.originalEditorState || this.state.editorState;
 
         if (displayedCompletion == null) {

src/components/views/rooms/RoomPreviewBar.js

@@ -93,7 +93,7 @@ module.exports = React.createClass({
     },
 
     render: function() {
-        let joinBlock, previewBlock;
+        let joinBlock; let previewBlock;
 
         if (this.props.spinner || this.state.busy) {
             const Spinner = sdk.getComponent("elements.Spinner");

src/components/views/rooms/RoomSettings.js

@@ -657,31 +657,31 @@ module.exports = React.createClass({
         const userLevels = powerLevels.users || {};
 
         const powerLevelDescriptors = {
-            users_default: {
+            "users_default": {
                 desc: _t('The default role for new room members is'),
                 defaultValue: 0,
             },
-            events_default: {
+            "events_default": {
                 desc: _t('To send messages, you must be a'),
                 defaultValue: 0,
             },
-            invite: {
+            "invite": {
                 desc: _t('To invite users into the room, you must be a'),
                 defaultValue: 50,
             },
-            state_default: {
+            "state_default": {
                 desc: _t('To configure the room, you must be a'),
                 defaultValue: 50,
             },
-            kick: {
+            "kick": {
                 desc: _t('To kick users, you must be a'),
                 defaultValue: 50,
             },
-            ban: {
+            "ban": {
                 desc: _t('To ban users, you must be a'),
                 defaultValue: 50,
             },
-            redact: {
+            "redact": {
                 desc: _t('To remove other users\' messages, you must be a'),
                 defaultValue: 50,
             },

src/components/views/settings/Notifications.js

@@ -67,7 +67,7 @@ module.exports = React.createClass({
     phases: {
         LOADING: "LOADING", // The component is loading or sending data to the hs
         DISPLAY: "DISPLAY", // The component is ready and display data
-        ERROR: "ERROR",      // There was an error
+        ERROR: "ERROR", // There was an error
     },
 
     propTypes: {
@@ -86,14 +86,14 @@ module.exports = React.createClass({
     getInitialState: function() {
         return {
             phase: this.phases.LOADING,
-            masterPushRule: undefined,      // The master rule ('.m.rule.master')
+            masterPushRule: undefined, // The master rule ('.m.rule.master')
-            vectorPushRules: [],            // HS default push rules displayed in Vector UI
+            vectorPushRules: [], // HS default push rules displayed in Vector UI
-            vectorContentRules: {           // Keyword push rules displayed in Vector UI
+            vectorContentRules: { // Keyword push rules displayed in Vector UI
                 vectorState: PushRuleVectorState.ON,
                 rules: [],
             },
-            externalPushRules: [],          // Push rules (except content rule) that have been defined outside Vector UI
+            externalPushRules: [], // Push rules (except content rule) that have been defined outside Vector UI
-            externalContentRules: [],        // Keyword push rules that have been defined outside Vector UI
+            externalContentRules: [], // Keyword push rules that have been defined outside Vector UI
         };
     },
 
@@ -290,7 +290,7 @@ module.exports = React.createClass({
         for (const i in this.state.vectorContentRules.rules) {
             const rule = this.state.vectorContentRules.rules[i];
 
-            let enabled, actions;
+            let enabled; let actions;
             switch (newPushRuleVectorState) {
                 case PushRuleVectorState.ON:
                     if (rule.actions.length !== 1) {

src/matrix-to.js

@@ -14,11 +14,24 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+import MatrixClientPeg from "./MatrixClientPeg";
+
 export const host = "matrix.to";
 export const baseUrl = `https://${host}`;
 
+// The maximum number of servers to pick when working out which servers
+// to add to permalinks. The servers are appended as ?via=example.org
+const MAX_SERVER_CANDIDATES = 3;
+
 export function makeEventPermalink(roomId, eventId) {
-    return `${baseUrl}/#/${roomId}/${eventId}`;
+    const permalinkBase = `${baseUrl}/#/${roomId}/${eventId}`;
+
+    // If the roomId isn't actually a room ID, don't try to list the servers.
+    // Aliases are already routable, and don't need extra information.
+    if (roomId[0] !== '!') return permalinkBase;
+
+    const serverCandidates = pickServerCandidates(roomId);
+    return `${permalinkBase}${encodeServerCandidates(serverCandidates)}`;
 }
 
 export function makeUserPermalink(userId) {
@@ -26,9 +39,98 @@ export function makeUserPermalink(userId) {
 }
 
 export function makeRoomPermalink(roomId) {
-    return `${baseUrl}/#/${roomId}`;
+    const permalinkBase = `${baseUrl}/#/${roomId}`;
+
+    // If the roomId isn't actually a room ID, don't try to list the servers.
+    // Aliases are already routable, and don't need extra information.
+    if (roomId[0] !== '!') return permalinkBase;
+
+    const serverCandidates = pickServerCandidates(roomId);
+    return `${permalinkBase}${encodeServerCandidates(serverCandidates)}`;
 }
 
 export function makeGroupPermalink(groupId) {
     return `${baseUrl}/#/${groupId}`;
 }
+
+export function encodeServerCandidates(candidates) {
+    if (!candidates || candidates.length === 0) return '';
+    return `?via=${candidates.map(c => encodeURIComponent(c)).join("&via=")}`;
+}
+
+export function pickServerCandidates(roomId) {
+    const client = MatrixClientPeg.get();
+    const room = client.getRoom(roomId);
+    if (!room) return [];
+
+    // Permalinks can have servers appended to them so that the user
+    // receiving them can have a fighting chance at joining the room.
+    // These servers are called "candidates" at this point because
+    // it is unclear whether they are going to be useful to actually
+    // join in the future.
+    //
+    // We pick 3 servers based on the following criteria:
+    //
+    //   Server 1: The highest power level user in the room, provided
+    //   they are at least PL 50. We don't calculate "what is a moderator"
+    //   here because it is less relevant for the vast majority of rooms.
+    //   We also want to ensure that we get an admin or high-ranking mod
+    //   as they are less likely to leave the room. If no user happens
+    //   to meet this criteria, we'll pick the most popular server in the
+    //   room.
+    //
+    //   Server 2: The next most popular server in the room (in user
+    //   distribution). This cannot be the same as Server 1. If no other
+    //   servers are available then we'll only return Server 1.
+    //
+    //   Server 3: The next most popular server by user distribution. This
+    //   has the same rules as Server 2, with the added exception that it
+    //   must be unique from Server 1 and 2.
+
+    // Rationale for popular servers: It's hard to get rid of people when
+    // they keep flocking in from a particular server. Sure, the server could
+    // be ACL'd in the future or for some reason be evicted from the room
+    // however an event like that is unlikely the larger the room gets.
+
+    // Note: we don't pick the server the room was created on because the
+    // homeserver should already be using that server as a last ditch attempt
+    // and there's less of a guarantee that the server is a resident server.
+    // Instead, we actively figure out which servers are likely to be residents
+    // in the future and try to use those.
+
+    // Note: Users receiving permalinks that happen to have all 3 potential
+    // servers fail them (in terms of joining) are somewhat expected to hunt
+    // down the person who gave them the link to ask for a participating server.
+    // The receiving user can then manually append the known-good server to
+    // the list and magically have the link work.
+
+    const populationMap: {[server:string]:number} = {};
+    const highestPlUser = {userId: null, powerLevel: 0, serverName: null};
+
+    for (const member of room.getJoinedMembers()) {
+        const serverName = member.userId.split(":").splice(1).join(":");
+        if (member.powerLevel > highestPlUser.powerLevel) {
+            highestPlUser.userId = member.userId;
+            highestPlUser.powerLevel = member.powerLevel;
+            highestPlUser.serverName = serverName;
+        }
+
+        if (!populationMap[serverName]) populationMap[serverName] = 0;
+        populationMap[serverName]++;
+    }
+
+    const candidates = [];
+    if (highestPlUser.powerLevel >= 50) candidates.push(highestPlUser.serverName);
+
+    const beforePopulation = candidates.length;
+    const serversByPopulation = Object.keys(populationMap)
+        .sort((a, b) => populationMap[b] - populationMap[a])
+        .filter(a => !candidates.includes(a));
+    for (let i = beforePopulation; i <= MAX_SERVER_CANDIDATES; i++) {
+        const idx = i - beforePopulation;
+        if (idx >= serversByPopulation.length) break;
+        candidates.push(serversByPopulation[idx]);
+    }
+
+    return candidates;
+}

src/notifications/StandardActions.js

@@ -16,9 +16,9 @@ limitations under the License.
 
 'use strict';
 
-var NotificationUtils = require('./NotificationUtils');
+const NotificationUtils = require('./NotificationUtils');
 
-var encodeActions = NotificationUtils.encodeActions;
+const encodeActions = NotificationUtils.encodeActions;
 
 module.exports = {
     ACTION_NOTIFY: encodeActions({notify: true}),

src/phonenumber.js

@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-const PHONE_NUMBER_REGEXP = /^[0-9 -\.]+$/;
+const PHONE_NUMBER_REGEXP = /^[0-9 -.]+$/;
 
 /*
  * Do basic validation to determine if the given input could be

src/settings/SettingsStore.js

@@ -248,7 +248,7 @@ export default class SettingsStore {
         if (actualValue !== undefined && actualValue !== null) return actualValue;
         return calculatedValue;
     }
-    /* eslint-disable valid-jsdoc */    //https://github.com/eslint/eslint/issues/7307
+    /* eslint-disable valid-jsdoc */ //https://github.com/eslint/eslint/issues/7307
     /**
      * Sets the value for a setting. The room ID is optional if the setting is not being
      * set for a particular room, otherwise it should be supplied. The value may be null

src/settings/controllers/SettingController.js

@@ -23,7 +23,6 @@ limitations under the License.
  * intended to handle environmental factors for specific settings.
  */
 export default class SettingController {
-
     /**
      * Gets the overridden value for the setting, if any. This must return null if the
      * value is not to be overridden, otherwise it must return the new value.

src/stores/RoomListStore.js

@@ -23,7 +23,6 @@ import Unread from '../Unread';
  * the RoomList.
  */
 class RoomListStore extends Store {
-
     static _listOrders = {
         "m.favourite": "manual",
         "im.vector.fake.invite": "recent",

src/utils/DMRoomMap.js

@@ -93,7 +93,7 @@ export default class DMRoomMap {
                         return {userId, roomId};
                     }
                 }
-            }).filter((ids) => !!ids);  //filter out
+            }).filter((ids) => !!ids); //filter out
             // these are actually all legit self-chats
             // bail out
             if (!guessedUserIdsThatChanged.length) {

src/utils/DecryptFile.js

@@ -77,7 +77,7 @@ const ALLOWED_BLOB_MIMETYPES = {
     'audio/x-pn-wav': true,
     'audio/flac': true,
     'audio/x-flac': true,
-}
+};
 
 /**
  * Decrypt a file attached to a matrix event.

test/matrix-to-test.js

@@ -0,0 +1,349 @@
+/*
+Copyright 2018 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.
+*/
+
+import expect from 'expect';
+import peg from '../src/MatrixClientPeg';
+import {
+    makeEventPermalink,
+    makeGroupPermalink,
+    makeRoomPermalink,
+    makeUserPermalink,
+    pickServerCandidates,
+} from "../src/matrix-to";
+import * as testUtils from "./test-utils";
+
+
+describe('matrix-to', function() {
+    let sandbox;
+
+    beforeEach(function() {
+        testUtils.beforeEach(this);
+        sandbox = testUtils.stubClient();
+        peg.get().credentials = { userId: "@test:example.com" };
+    });
+
+    afterEach(function() {
+        sandbox.restore();
+    });
+
+    it('should pick no candidate servers when the room is not found', function() {
+        peg.get().getRoom = () => null;
+        const pickedServers = pickServerCandidates("!somewhere:example.org");
+        expect(pickedServers).toExist();
+        expect(pickedServers.length).toBe(0);
+    });
+
+    it('should pick no candidate servers when the room has no members', function() {
+        peg.get().getRoom = () => {
+            return {
+                getJoinedMembers: () => [],
+            };
+        };
+        const pickedServers = pickServerCandidates("!somewhere:example.org");
+        expect(pickedServers).toExist();
+        expect(pickedServers.length).toBe(0);
+    });
+
+    it('should pick a candidate server for the highest power level user in the room', function() {
+        peg.get().getRoom = () => {
+            return {
+                getJoinedMembers: () => [
+                    {
+                        userId: "@alice:pl_50",
+                        powerLevel: 50,
+                    },
+                    {
+                        userId: "@alice:pl_75",
+                        powerLevel: 75,
+                    },
+                    {
+                        userId: "@alice:pl_95",
+                        powerLevel: 95,
+                    },
+                ],
+            };
+        };
+        const pickedServers = pickServerCandidates("!somewhere:example.org");
+        expect(pickedServers).toExist();
+        expect(pickedServers.length).toBe(3);
+        expect(pickedServers[0]).toBe("pl_95");
+        // we don't check the 2nd and 3rd servers because that is done by the next test
+    });
+
+    it('should pick candidate servers based on user population', function() {
+        peg.get().getRoom = () => {
+            return {
+                getJoinedMembers: () => [
+                    {
+                        userId: "@alice:first",
+                        powerLevel: 0,
+                    },
+                    {
+                        userId: "@bob:first",
+                        powerLevel: 0,
+                    },
+                    {
+                        userId: "@charlie:first",
+                        powerLevel: 0,
+                    },
+                    {
+                        userId: "@alice:second",
+                        powerLevel: 0,
+                    },
+                    {
+                        userId: "@bob:second",
+                        powerLevel: 0,
+                    },
+                    {
+                        userId: "@charlie:third",
+                        powerLevel: 0,
+                    },
+                ],
+            };
+        };
+        const pickedServers = pickServerCandidates("!somewhere:example.org");
+        expect(pickedServers).toExist();
+        expect(pickedServers.length).toBe(3);
+        expect(pickedServers[0]).toBe("first");
+        expect(pickedServers[1]).toBe("second");
+        expect(pickedServers[2]).toBe("third");
+    });
+
+    it('should pick prefer candidate servers with higher power levels', function() {
+        peg.get().getRoom = () => {
+            return {
+                getJoinedMembers: () => [
+                    {
+                        userId: "@alice:first",
+                        powerLevel: 100,
+                    },
+                    {
+                        userId: "@alice:second",
+                        powerLevel: 0,
+                    },
+                    {
+                        userId: "@bob:second",
+                        powerLevel: 0,
+                    },
+                    {
+                        userId: "@charlie:third",
+                        powerLevel: 0,
+                    },
+                ],
+            };
+        };
+        const pickedServers = pickServerCandidates("!somewhere:example.org");
+        expect(pickedServers).toExist();
+        expect(pickedServers.length).toBe(3);
+        expect(pickedServers[0]).toBe("first");
+        expect(pickedServers[1]).toBe("second");
+        expect(pickedServers[2]).toBe("third");
+    });
+
+    it('should work with IPv4 hostnames', function() {
+        peg.get().getRoom = () => {
+            return {
+                getJoinedMembers: () => [
+                    {
+                        userId: "@alice:127.0.0.1",
+                        powerLevel: 100,
+                    },
+                ],
+            };
+        };
+        const pickedServers = pickServerCandidates("!somewhere:example.org");
+        expect(pickedServers).toExist();
+        expect(pickedServers.length).toBe(1);
+        expect(pickedServers[0]).toBe("127.0.0.1");
+    });
+
+    it('should work with IPv6 hostnames', function() {
+        peg.get().getRoom = () => {
+            return {
+                getJoinedMembers: () => [
+                    {
+                        userId: "@alice:[::1]",
+                        powerLevel: 100,
+                    },
+                ],
+            };
+        };
+        const pickedServers = pickServerCandidates("!somewhere:example.org");
+        expect(pickedServers).toExist();
+        expect(pickedServers.length).toBe(1);
+        expect(pickedServers[0]).toBe("[::1]");
+    });
+
+    it('should work with IPv4 hostnames with ports', function() {
+        peg.get().getRoom = () => {
+            return {
+                getJoinedMembers: () => [
+                    {
+                        userId: "@alice:127.0.0.1:8448",
+                        powerLevel: 100,
+                    },
+                ],
+            };
+        };
+        const pickedServers = pickServerCandidates("!somewhere:example.org");
+        expect(pickedServers).toExist();
+        expect(pickedServers.length).toBe(1);
+        expect(pickedServers[0]).toBe("127.0.0.1:8448");
+    });
+
+    it('should work with IPv6 hostnames with ports', function() {
+        peg.get().getRoom = () => {
+            return {
+                getJoinedMembers: () => [
+                    {
+                        userId: "@alice:[::1]:8448",
+                        powerLevel: 100,
+                    },
+                ],
+            };
+        };
+        const pickedServers = pickServerCandidates("!somewhere:example.org");
+        expect(pickedServers).toExist();
+        expect(pickedServers.length).toBe(1);
+        expect(pickedServers[0]).toBe("[::1]:8448");
+    });
+
+    it('should work with hostnames with ports', function() {
+        peg.get().getRoom = () => {
+            return {
+                getJoinedMembers: () => [
+                    {
+                        userId: "@alice:example.org:8448",
+                        powerLevel: 100,
+                    },
+                ],
+            };
+        };
+        const pickedServers = pickServerCandidates("!somewhere:example.org");
+        expect(pickedServers).toExist();
+        expect(pickedServers.length).toBe(1);
+        expect(pickedServers[0]).toBe("example.org:8448");
+    });
+
+    it('should generate an event permalink for room IDs with no candidate servers', function() {
+        peg.get().getRoom = () => null;
+        const result = makeEventPermalink("!somewhere:example.org", "$something:example.com");
+        expect(result).toBe("https://matrix.to/#/!somewhere:example.org/$something:example.com");
+    });
+
+    it('should generate an event permalink for room IDs with some candidate servers', function() {
+        peg.get().getRoom = () => {
+            return {
+                getJoinedMembers: () => [
+                    {
+                        userId: "@alice:first",
+                        powerLevel: 100,
+                    },
+                    {
+                        userId: "@bob:second",
+                        powerLevel: 0,
+                    },
+                ],
+            };
+        };
+        const result = makeEventPermalink("!somewhere:example.org", "$something:example.com");
+        expect(result).toBe("https://matrix.to/#/!somewhere:example.org/$something:example.com?via=first&via=second");
+    });
+
+    it('should generate a room permalink for room IDs with no candidate servers', function() {
+        peg.get().getRoom = () => null;
+        const result = makeRoomPermalink("!somewhere:example.org");
+        expect(result).toBe("https://matrix.to/#/!somewhere:example.org");
+    });
+
+    it('should generate a room permalink for room IDs with some candidate servers', function() {
+        peg.get().getRoom = () => {
+            return {
+                getJoinedMembers: () => [
+                    {
+                        userId: "@alice:first",
+                        powerLevel: 100,
+                    },
+                    {
+                        userId: "@bob:second",
+                        powerLevel: 0,
+                    },
+                ],
+            };
+        };
+        const result = makeRoomPermalink("!somewhere:example.org");
+        expect(result).toBe("https://matrix.to/#/!somewhere:example.org?via=first&via=second");
+    });
+
+    // Technically disallowed but we'll test it anyways
+    it('should generate an event permalink for room aliases with no candidate servers', function() {
+        peg.get().getRoom = () => null;
+        const result = makeEventPermalink("#somewhere:example.org", "$something:example.com");
+        expect(result).toBe("https://matrix.to/#/#somewhere:example.org/$something:example.com");
+    });
+
+    // Technically disallowed but we'll test it anyways
+    it('should generate an event permalink for room aliases without candidate servers', function() {
+        peg.get().getRoom = () => {
+            return {
+                getJoinedMembers: () => [
+                    {
+                        userId: "@alice:first",
+                        powerLevel: 100,
+                    },
+                    {
+                        userId: "@bob:second",
+                        powerLevel: 0,
+                    },
+                ],
+            };
+        };
+        const result = makeEventPermalink("#somewhere:example.org", "$something:example.com");
+        expect(result).toBe("https://matrix.to/#/#somewhere:example.org/$something:example.com");
+    });
+
+    it('should generate a room permalink for room aliases with no candidate servers', function() {
+        peg.get().getRoom = () => null;
+        const result = makeRoomPermalink("#somewhere:example.org");
+        expect(result).toBe("https://matrix.to/#/#somewhere:example.org");
+    });
+
+    it('should generate a room permalink for room aliases without candidate servers', function() {
+        peg.get().getRoom = () => {
+            return {
+                getJoinedMembers: () => [
+                    {
+                        userId: "@alice:first",
+                        powerLevel: 100,
+                    },
+                    {
+                        userId: "@bob:second",
+                        powerLevel: 0,
+                    },
+                ],
+            };
+        };
+        const result = makeRoomPermalink("#somewhere:example.org");
+        expect(result).toBe("https://matrix.to/#/#somewhere:example.org");
+    });
+
+    it('should generate a user permalink', function() {
+        const result = makeUserPermalink("@someone:example.org");
+        expect(result).toBe("https://matrix.to/#/@someone:example.org");
+    });
+
+    it('should generate a group permalink', function() {
+        const result = makeGroupPermalink("+community:example.org");
+        expect(result).toBe("https://matrix.to/#/+community:example.org");
+    });
+});