Implement the Security & Privacy tab of new room settings

res/css/_components.scss

@@ -143,6 +143,7 @@
 @import "./views/settings/tabs/_GeneralUserSettingsTab.scss";
 @import "./views/settings/tabs/_HelpSettingsTab.scss";
 @import "./views/settings/tabs/_PreferencesSettingsTab.scss";
+@import "./views/settings/tabs/_SecurityRoomSettingsTab.scss";
 @import "./views/settings/tabs/_SecuritySettingsTab.scss";
 @import "./views/settings/tabs/_SettingsTab.scss";
 @import "./views/settings/tabs/_VoiceSettingsTab.scss";

res/css/views/elements/_ToggleSwitch.scss

@@ -21,10 +21,12 @@ limitations under the License.
     border-radius: 14px;
     background-color: $togglesw-off-color;
     position: relative;
+    opacity: 0.5;
 }
 
 .mx_ToggleSwitch_enabled {
     cursor: pointer;
+    opacity: 1;
 }
 
 .mx_ToggleSwitch.mx_ToggleSwitch_on {

res/css/views/settings/tabs/_SecurityRoomSettingsTab.scss

@@ -0,0 +1,34 @@
+/*
+Copyright 2019 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.
+*/
+
+.mx_SecurityRoomSettingsTab label {
+  display: block;
+}
+
+.mx_SecurityRoomSettingsTab_warning {
+  display: block;
+
+  img {
+    vertical-align: middle;
+    margin-right: 5px;
+    margin-left: 3px;
+    margin-bottom: 5px;
+  }
+}
+
+.mx_SecurityRoomSettingsTab_encryptionSection {
+  margin-bottom: 25px;
+}

src/components/views/dialogs/RoomSettingsDialog.js

@@ -21,6 +21,7 @@ import {_t, _td} from "../../../languageHandler";
 import AccessibleButton from "../elements/AccessibleButton";
 import dis from '../../../dispatcher';
 import GeneralRoomSettingsTab from "../settings/tabs/GeneralRoomSettingsTab";
+import SecurityRoomSettingsTab from "../settings/tabs/SecurityRoomSettingsTab";
 
 // TODO: Ditch this whole component
 export class TempTab extends React.Component {
@@ -68,7 +69,7 @@ export default class RoomSettingsDialog extends React.Component {
         tabs.push(new Tab(
             _td("Security & Privacy"),
             "mx_RoomSettingsDialog_securityIcon",
-            <div>Security Test</div>,
+            <SecurityRoomSettingsTab roomId={this.props.roomId} />,
         ));
         tabs.push(new Tab(
             _td("Roles & Permissions"),

src/components/views/elements/LabelledToggleSwitch.js

@@ -28,14 +28,18 @@ export default class LabelledToggleSwitch extends React.Component {
 
         // The translated label for the switch
         label: PropTypes.string.isRequired,
+
+        // Whether or not to disable the toggle switch
+        disabled: PropTypes.bool,
     };
 
     render() {
         // This is a minimal version of a SettingsFlag
         return (
             <div className="mx_SettingsFlag">
                 <span className="mx_SettingsFlag_label">{this.props.label}</span>
-                <ToggleSwitch checked={this.props.value} onChange={this.props.onChange} />
+                <ToggleSwitch checked={this.props.value} disabled={this.props.disabled}
+                              onChange={this.props.onChange} />
             </div>
         );
     }

src/components/views/settings/tabs/SecurityRoomSettingsTab.js

@@ -0,0 +1,272 @@
+/*
+Copyright 2019 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 React from 'react';
+import PropTypes from 'prop-types';
+import {_t} from "../../../../languageHandler";
+import MatrixClientPeg from "../../../../MatrixClientPeg";
+import sdk from "../../../../index";
+import LabelledToggleSwitch from "../../elements/LabelledToggleSwitch";
+import {SettingLevel} from "../../../../settings/SettingsStore";
+import Modal from "../../../../Modal";
+
+export default class SecurityRoomSettingsTab extends React.Component {
+    static propTypes = {
+        roomId: PropTypes.string.isRequired,
+    };
+
+    componentWillMount(): void {
+        MatrixClientPeg.get().on("RoomState.events", this._onStateEvent);
+    }
+
+    componentWillUnmount(): void {
+        MatrixClientPeg.get().removeListener("RoomState.events", this._onStateEvent);
+    }
+
+    _onStateEvent = (e) => {
+        const refreshWhenTypes = ['m.room.join_rules', 'm.room.guest_access', 'm.room.history_visibility'];
+        if (refreshWhenTypes.includes(e.getType())) this.forceUpdate();
+    };
+
+    _onEncryptionChange = (e) => {
+        const QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
+        Modal.createTrackedDialog('E2E Enable Warning', '', QuestionDialog, {
+            title: _t('Warning!'),
+            description: (
+                <div>
+                    <p>{ _t('End-to-end encryption is in beta and may not be reliable') }.</p>
+                    <p>{ _t('You should not yet trust it to secure data') }.</p>
+                    <p>{ _t('Devices will not yet be able to decrypt history from before they joined the room') }.</p>
+                    <p>{ _t('Once encryption is enabled for a room it cannot be turned off again (for now)') }.</p>
+                    <p>{ _t('Encrypted messages will not be visible on clients that do not yet implement encryption') }.</p>
+                </div>
+            ),
+            onFinished: (confirm)=>{
+                if (confirm) {
+                    return MatrixClientPeg.get().sendStateEvent(
+                        this.props.roomId, "m.room.encryption",
+                        { algorithm: "m.megolm.v1.aes-sha2" },
+                    );
+                }
+            },
+        });
+    };
+
+    _fixGuestAccess = (e) => {
+        e.preventDefault();
+        e.stopPropagation();
+
+        const client = MatrixClientPeg.get();
+        client.sendStateEvent(this.props.roomId, "m.room.join_rules", {join_rule: "invite"}, "");
+        client.sendStateEvent(this.props.roomId, "m.room.guest_access", {guest_access: "can_join"}, "");
+    };
+
+    _onRoomAccessRadioToggle = (ev) => {
+        //                         join_rule
+        //                      INVITE  |  PUBLIC
+        //        ----------------------+----------------
+        // guest  CAN_JOIN   | inv_only | pub_with_guest
+        // access ----------------------+----------------
+        //        FORBIDDEN  | inv_only | pub_no_guest
+        //        ----------------------+----------------
+
+        // we always set guests can_join here as it makes no sense to have
+        // an invite-only room that guests can't join.  If you explicitly
+        // invite them, you clearly want them to join, whether they're a
+        // guest or not.  In practice, guest_access should probably have
+        // been implemented as part of the join_rules enum.
+        let joinRule = "invite";
+        let guestAccess = "can_join";
+
+        switch (ev.target.value) {
+            case "invite_only":
+                // no change - use defaults above
+                break;
+            case "public_no_guests":
+                joinRule = "public";
+                guestAccess = "forbidden";
+                break;
+            case "public_with_guests":
+                joinRule = "public";
+                guestAccess = "can_join";
+                break;
+        }
+
+        const client = MatrixClientPeg.get();
+        client.sendStateEvent(this.props.roomId, "m.room.join_rules", {join_rule: joinRule}, "");
+        client.sendStateEvent(this.props.roomId, "m.room.guest_access", {guest_access: guestAccess}, "");
+    };
+
+    _onHistoryRadioToggle = (ev) => {
+        MatrixClientPeg.get().sendStateEvent(this.props.roomId, "m.room.history_visibility", {
+            history_visibility: ev.target.value,
+        }, "");
+    };
+
+    _renderRoomAccess() {
+        const client = MatrixClientPeg.get();
+        const room = client.getRoom(this.props.roomId);
+        const joinRule = room.currentState.getStateEvents("m.room.join_rules", "").getContent()['join_rule'];
+        const guestAccess = room.currentState.getStateEvents("m.room.guest_access", "").getContent()['guest_access'];
+        const aliasEvents = room.currentState.getStateEvents("m.room.aliases") || [];
+        const hasAliases = aliasEvents.includes((ev) => (ev.getContent().aliases || []).length);
+
+        const canChangeAccess = room.currentState.mayClientSendStateEvent("m.room.join_rules", client)
+            && room.currentState.mayClientSendStateEvent("m.room.guest_access", client);
+
+        let guestWarning = null;
+        if (joinRule !== 'public' && guestAccess === 'forbidden') {
+            guestWarning = (
+                <div className='mx_SecurityRoomSettingsTab_warning'>
+                    <img src={require("../../../../../res/img/warning.svg")} width={15} height={15} />
+                    <span>
+                        {_t("Guests cannot join this room even if explicitly invited.")}&nbsp;
+                        <a href="" onClick={this._fixGuestAccess}>{_t("Click here to fix")}</a>
+                    </span>
+                </div>
+            );
+        }
+
+        let aliasWarning = null;
+        if (joinRule === 'public' && !hasAliases) {
+            aliasWarning = (
+                <div className='mx_SecurityRoomSettingsTab_warning'>
+                    <img src={require("../../../../../res/img/warning.svg")} width={15} height={15} />
+                    <span>
+                        {_t("To link to this room, please add an alias.")}
+                    </span>
+                </div>
+            );
+        }
+
+        return (
+            <div>
+                {guestWarning}
+                {aliasWarning}
+                <label>
+                    <input type="radio" name="roomVis" value="invite_only"
+                           disabled={!canChangeAccess}
+                           onChange={this._onRoomAccessRadioToggle}
+                           checked={joinRule !== "public"} />
+                    {_t('Only people who have been invited')}
+                </label>
+                <label>
+                    <input type="radio" name="roomVis" value="public_no_guests"
+                           disabled={!canChangeAccess}
+                           onChange={this._onRoomAccessRadioToggle}
+                           checked={joinRule === "public" && guestAccess !== "can_join"} />
+                    {_t('Anyone who knows the room\'s link, apart from guests')}
+                </label>
+                <label>
+                    <input type="radio" name="roomVis" value="public_with_guests"
+                           disabled={!canChangeAccess}
+                           onChange={this._onRoomAccessRadioToggle}
+                           checked={joinRule === "public" && guestAccess === "can_join"} />
+                    {_t("Anyone who knows the room's link, including guests")}
+                </label>
+            </div>
+        );
+    }
+
+    _renderHistory() {
+        const client = MatrixClientPeg.get();
+        const room = client.getRoom(this.props.roomId);
+        const state = room.currentState;
+        const history = state.getStateEvents("m.room.history_visibility", "").getContent()['history_visibility'];
+        const canChangeHistory = state.mayClientSendStateEvent('m.room.history_visibility', client);
+
+        return (
+            <div>
+                <div>
+                    {_t('Changes to who can read history will only apply to future messages in this room. ' +
+                        'The visibility of existing history will be unchanged.')}
+                </div>
+                <label>
+                    <input type="radio" name="historyVis" value="world_readable"
+                           disabled={!canChangeHistory}
+                           checked={history === "world_readable"}
+                           onChange={this._onHistoryRadioToggle} />
+                    {_t("Anyone")}
+                </label>
+                <label>
+                    <input type="radio" name="historyVis" value="shared"
+                           disabled={!canChangeHistory}
+                           checked={history === "shared"}
+                           onChange={this._onHistoryRadioToggle} />
+                    {_t('Members only (since the point in time of selecting this option)')}
+                </label>
+                <label>
+                    <input type="radio" name="historyVis" value="invited"
+                           disabled={!canChangeHistory}
+                           checked={history === "invited"}
+                           onChange={this._onHistoryRadioToggle} />
+                    {_t('Members only (since they were invited)')}
+                </label>
+                <label >
+                    <input type="radio" name="historyVis" value="joined"
+                           disabled={!canChangeHistory}
+                           checked={history === "joined"}
+                           onChange={this._onHistoryRadioToggle} />
+                    {_t('Members only (since they joined)')}
+                </label>
+            </div>
+        );
+    }
+
+    render() {
+        const SettingsFlag = sdk.getComponent("elements.SettingsFlag");
+
+        const client = MatrixClientPeg.get();
+        const room = client.getRoom(this.props.roomId);
+        const isEncrypted = client.isRoomEncrypted(this.props.roomId);
+        const hasEncryptionPermission = room.currentState.mayClientSendStateEvent("m.room.encryption", client);
+        const canEnableEncryption = !isEncrypted && hasEncryptionPermission;
+
+        let encryptionSettings = null;
+        if (isEncrypted) {
+            encryptionSettings = <SettingsFlag name="blacklistUnverifiedDevices" level={SettingLevel.ROOM_DEVICE}
+                                               roomId={this.props.roomId} />;
+        }
+
+        return (
+            <div className="mx_SettingsTab mx_SecurityRoomSettingsTab">
+                <div className="mx_SettingsTab_heading">{_t("Security & Privacy")}</div>
+
+                <span className='mx_SettingsTab_subheading'>{_t("Encryption")}</span>
+                <div className='mx_SettingsTab_section mx_SecurityRoomSettingsTab_encryptionSection'>
+                    <div>
+                        <div className='mx_SettingsTab_subsectionText'>
+                            <span>{_t("Once enabled, encryption cannot be disabled.")}</span>
+                        </div>
+                        <LabelledToggleSwitch value={isEncrypted} onChange={this._onEncryptionChange}
+                                              label={_t("Encrypted")} disabled={!canEnableEncryption} />
+                    </div>
+                    {encryptionSettings}
+                </div>
+
+                <span className='mx_SettingsTab_subheading'>{_t("Who can access this room?")}</span>
+                <div className='mx_SettingsTab_section mx_SettingsTab_subsectionText'>
+                    {this._renderRoomAccess()}
+                </div>
+
+                <span className='mx_SettingsTab_subheading'>{_t("Who can read history?")}</span>
+                <div className='mx_SettingsTab_section mx_SettingsTab_subsectionText'>
+                    {this._renderHistory()}
+                </div>
+            </div>
+        );
+    }
+}