element-web-Github/src/components/views/elements/AppTile.js
Luke Barnard 1f2f3474ed Delinting
2018-05-11 17:28:12 +01:00

742 lines
29 KiB
JavaScript

/**
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.
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.
*/
'use strict';
import url from 'url';
import qs from 'querystring';
import React from 'react';
import PropTypes from 'prop-types';
import MatrixClientPeg from '../../../MatrixClientPeg';
import PlatformPeg from '../../../PlatformPeg';
import ScalarAuthClient from '../../../ScalarAuthClient';
import WidgetMessaging from '../../../WidgetMessaging';
import TintableSvgButton from './TintableSvgButton';
import SdkConfig from '../../../SdkConfig';
import Modal from '../../../Modal';
import { _t, _td } from '../../../languageHandler';
import sdk from '../../../index';
import AppPermission from './AppPermission';
import AppWarning from './AppWarning';
import MessageSpinner from './MessageSpinner';
import WidgetUtils from '../../../WidgetUtils';
import dis from '../../../dispatcher';
const ALLOWED_APP_URL_SCHEMES = ['https:', 'http:'];
const ENABLE_REACT_PERF = false;
export default class AppTile extends React.Component {
constructor(props) {
super(props);
this.state = this._getNewState(props);
this._onWidgetAction = this._onWidgetAction.bind(this);
this._onMessage = this._onMessage.bind(this);
this._onLoaded = this._onLoaded.bind(this);
this._onEditClick = this._onEditClick.bind(this);
this._onDeleteClick = this._onDeleteClick.bind(this);
this._onSnapshotClick = this._onSnapshotClick.bind(this);
this.onClickMenuBar = this.onClickMenuBar.bind(this);
this._onMinimiseClick = this._onMinimiseClick.bind(this);
this._onInitialLoad = this._onInitialLoad.bind(this);
this._grantWidgetPermission = this._grantWidgetPermission.bind(this);
this._revokeWidgetPermission = this._revokeWidgetPermission.bind(this);
this._onPopoutWidgetClick = this._onPopoutWidgetClick.bind(this);
}
/**
* Set initial component state when the App wUrl (widget URL) is being updated.
* Component props *must* be passed (rather than relying on this.props).
* @param {Object} newProps The new properties of the component
* @return {Object} Updated component state to be set with setState
*/
_getNewState(newProps) {
const widgetPermissionId = [newProps.room.roomId, encodeURIComponent(newProps.url)].join('_');
const hasPermissionToLoad = localStorage.getItem(widgetPermissionId);
return {
initialising: true, // True while we are mangling the widget URL
loading: this.props.waitForIframeLoad, // True while the iframe content is loading
widgetUrl: this._addWurlParams(newProps.url),
widgetPermissionId: widgetPermissionId,
// Assume that widget has permission to load if we are the user who
// added it to the room, or if explicitly granted by the user
hasPermissionToLoad: hasPermissionToLoad === 'true' || newProps.userId === newProps.creatorUserId,
error: null,
deleting: false,
widgetPageTitle: newProps.widgetPageTitle,
allowedCapabilities: (this.props.whitelistCapabilities && this.props.whitelistCapabilities.length > 0) ?
this.props.whitelistCapabilities : [],
requestedCapabilities: [],
};
}
/**
* Does the widget support a given capability
* @param {[type]} capability Capability to check for
* @return {Boolean} True if capability supported
*/
_hasCapability(capability) {
return this.state.allowedCapabilities.some((c) => {return c === capability;});
}
/**
* Add widget instance specific parameters to pass in wUrl
* Properties passed to widget instance:
* - widgetId
* - origin / parent URL
* @param {string} urlString Url string to modify
* @return {string}
* Url string with parameters appended.
* If url can not be parsed, it is returned unmodified.
*/
_addWurlParams(urlString) {
const u = url.parse(urlString);
if (!u) {
console.error("_addWurlParams", "Invalid URL", urlString);
return url;
}
const params = qs.parse(u.query);
// Append widget ID to query parameters
params.widgetId = this.props.id;
// Append current / parent URL
params.parentUrl = window.location.href;
u.search = undefined;
u.query = params;
return u.format();
}
/**
* Returns true if specified url is a scalar URL, typically https://scalar.vector.im/api
* @param {[type]} url URL to check
* @return {Boolean} True if specified URL is a scalar URL
*/
isScalarUrl(url) {
if (!url) {
console.error('Scalar URL check failed. No URL specified');
return false;
}
let scalarUrls = SdkConfig.get().integrations_widgets_urls;
if (!scalarUrls || scalarUrls.length == 0) {
scalarUrls = [SdkConfig.get().integrations_rest_url];
}
for (let i = 0; i < scalarUrls.length; i++) {
if (url.startsWith(scalarUrls[i])) {
return true;
}
}
return false;
}
isMixedContent() {
const parentContentProtocol = window.location.protocol;
const u = url.parse(this.props.url);
const childContentProtocol = u.protocol;
if (parentContentProtocol === 'https:' && childContentProtocol !== 'https:') {
console.warn("Refusing to load mixed-content app:",
parentContentProtocol, childContentProtocol, window.location, this.props.url);
return true;
}
return false;
}
componentWillMount() {
this.setScalarToken();
}
componentDidMount() {
// Legacy Jitsi widget messaging -- TODO replace this with standard widget
// postMessaging API
window.addEventListener('message', this._onMessage, false);
// Widget action listeners
this.dispatcherRef = dis.register(this._onWidgetAction);
}
componentDidUpdate() {
// Allow parents to access widget messaging
if (this.props.collectWidgetMessaging) {
this.props.collectWidgetMessaging(new Promise((resolve) => {
if (this.widgetMessaging) resolve(this.widgetMessaging);
// Expect this to be resolved later
this._exposeWidgetMessaging = resolve;
}));
}
}
componentWillUnmount() {
// Widget action listeners
dis.unregister(this.dispatcherRef);
// Widget postMessage listeners
try {
if (this.widgetMessaging) {
this.widgetMessaging.stop();
}
} catch (e) {
console.error('Failed to stop listening for widgetMessaging events', e.message);
}
// Jitsi listener
window.removeEventListener('message', this._onMessage);
}
/**
* Adds a scalar token to the widget URL, if required
* Component initialisation is only complete when this function has resolved
*/
setScalarToken() {
this.setState({initialising: true});
if (!this.isScalarUrl(this.props.url)) {
console.warn('Non-scalar widget, not setting scalar token!', url);
this.setState({
error: null,
widgetUrl: this._addWurlParams(this.props.url),
initialising: false,
});
return;
}
// Fetch the token before loading the iframe as we need it to mangle the URL
if (!this._scalarClient) {
this._scalarClient = new ScalarAuthClient();
}
this._scalarClient.getScalarToken().done((token) => {
// Append scalar_token as a query param if not already present
this._scalarClient.scalarToken = token;
const u = url.parse(this._addWurlParams(this.props.url));
const params = qs.parse(u.query);
if (!params.scalar_token) {
params.scalar_token = encodeURIComponent(token);
// u.search must be set to undefined, so that u.format() uses query paramerters - https://nodejs.org/docs/latest/api/url.html#url_url_format_url_options
u.search = undefined;
u.query = params;
}
this.setState({
error: null,
widgetUrl: u.format(),
initialising: false,
});
// Fetch page title from remote content if not already set
if (!this.state.widgetPageTitle && params.url) {
this._fetchWidgetTitle(params.url);
}
}, (err) => {
console.error("Failed to get scalar_token", err);
this.setState({
error: err.message,
initialising: false,
});
});
}
componentWillReceiveProps(nextProps) {
if (nextProps.url !== this.props.url) {
this._getNewState(nextProps);
this.setScalarToken();
} else if (nextProps.show && !this.props.show && this.props.waitForIframeLoad) {
this.setState({
loading: true,
});
} else if (nextProps.widgetPageTitle !== this.props.widgetPageTitle) {
this.setState({
widgetPageTitle: nextProps.widgetPageTitle,
});
}
}
// Legacy Jitsi widget messaging
// TODO -- This should be replaced with the new widget postMessaging API
_onMessage(event) {
if (this.props.type !== 'jitsi') {
return;
}
if (!event.origin) {
event.origin = event.originalEvent.origin;
}
if (!this.state.widgetUrl.startsWith(event.origin)) {
return;
}
if (event.data.widgetAction === 'jitsi_iframe_loaded') {
const iframe = this.refs.appFrame.contentWindow
.document.querySelector('iframe[id^="jitsiConferenceFrame"]');
PlatformPeg.get().setupScreenSharingForIframe(iframe);
}
}
_canUserModify() {
// User widgets should always be modifiable by their creator
if (this.props.userWidget && MatrixClientPeg.get().credentials.userId === this.props.creatorUserId) {
return true;
}
// Check if the current user can modify widgets in the current room
return WidgetUtils.canUserModifyWidgets(this.props.room.roomId);
}
_onEditClick(e) {
console.log("Edit widget ID ", this.props.id);
if (this.props.onEditClick) {
this.props.onEditClick();
} else {
const IntegrationsManager = sdk.getComponent("views.settings.IntegrationsManager");
const src = this._scalarClient.getScalarInterfaceUrlForRoom(
this.props.room, 'type_' + this.props.type, this.props.id);
Modal.createTrackedDialog('Integrations Manager', '', IntegrationsManager, {
src: src,
}, "mx_IntegrationsManager");
}
}
_onSnapshotClick(e) {
console.warn("Requesting widget snapshot");
this.widgetMessaging.getScreenshot()
.catch((err) => {
console.error("Failed to get screenshot", err);
})
.then((screenshot) => {
dis.dispatch({
action: 'picture_snapshot',
file: screenshot,
}, true);
});
}
/* If user has permission to modify widgets, delete the widget,
* otherwise revoke access for the widget to load in the user's browser
*/
_onDeleteClick() {
if (this.props.onDeleteClick) {
this.props.onDeleteClick();
} else {
if (this._canUserModify()) {
// Show delete confirmation dialog
const QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
Modal.createTrackedDialog('Delete Widget', '', QuestionDialog, {
title: _t("Delete Widget"),
description: _t(
"Deleting a widget removes it for all users in this room." +
" Are you sure you want to delete this widget?"),
button: _t("Delete widget"),
onFinished: (confirmed) => {
if (!confirmed) {
return;
}
this.setState({deleting: true});
MatrixClientPeg.get().sendStateEvent(
this.props.room.roomId,
'im.vector.modular.widgets',
{}, // empty content
this.props.id,
).catch((e) => {
console.error('Failed to delete widget', e);
}).finally(() => {
this.setState({deleting: false});
});
},
});
} else {
console.log("Revoke widget permissions - %s", this.props.id);
this._revokeWidgetPermission();
}
}
}
/**
* Called when widget iframe has finished loading
*/
_onLoaded() {
if (!this.widgetMessaging) {
this._onInitialLoad();
}
if (this._exposeWidgetMessaging) {
this._exposeWidgetMessaging(this.widgetMessaging);
}
}
/**
* Called on initial load of the widget iframe
*/
_onInitialLoad() {
this.widgetMessaging = new WidgetMessaging(this.props.id, this.props.url, this.refs.appFrame.contentWindow);
this.widgetMessaging.getCapabilities().then((requestedCapabilities) => {
console.log(`Widget ${this.props.id} requested capabilities:`, requestedCapabilities);
requestedCapabilities = requestedCapabilities || [];
// Allow whitelisted capabilities
let requestedWhitelistCapabilies = [];
if (this.props.whitelistCapabilities && this.props.whitelistCapabilities.length > 0) {
requestedWhitelistCapabilies = requestedCapabilities.filter(function(e) {
return this.indexOf(e)>=0;
}, this.props.whitelistCapabilities);
if (requestedWhitelistCapabilies.length > 0 ) {
console.warn(`Widget ${this.props.id} allowing requested, whitelisted properties:`,
requestedWhitelistCapabilies);
}
}
// TODO -- Add UI to warn about and optionally allow requested capabilities
this.setState({
requestedCapabilities,
allowedCapabilities: this.state.allowedCapabilities.concat(requestedWhitelistCapabilies),
});
if (this.props.onCapabilityRequest) {
this.props.onCapabilityRequest(requestedCapabilities);
}
}).catch((err) => {
console.log(`Failed to get capabilities for widget type ${this.props.type}`, this.props.id, err);
});
this.setState({loading: false});
}
_onWidgetAction(payload) {
if (payload.widgetId === this.props.id) {
switch (payload.action) {
case 'm.sticker':
if (this._hasCapability('m.sticker')) {
dis.dispatch({action: 'post_sticker_message', data: payload.data});
} else {
console.warn('Ignoring sticker message. Invalid capability');
}
break;
}
}
}
/**
* Set remote content title on AppTile
* @param {string} url Url to check for title
*/
_fetchWidgetTitle(url) {
this._scalarClient.getScalarPageTitle(url).then((widgetPageTitle) => {
if (widgetPageTitle) {
this.setState({widgetPageTitle: widgetPageTitle});
}
}, (err) =>{
console.error("Failed to get page title", err);
});
}
// Widget labels to render, depending upon user permissions
// These strings are translated at the point that they are inserted in to the DOM, in the render method
_deleteWidgetLabel() {
if (this._canUserModify()) {
return _td('Delete widget');
}
return _td('Revoke widget access');
}
/* TODO -- Store permission in account data so that it is persisted across multiple devices */
_grantWidgetPermission() {
console.warn('Granting permission to load widget - ', this.state.widgetUrl);
localStorage.setItem(this.state.widgetPermissionId, true);
this.setState({hasPermissionToLoad: true});
}
_revokeWidgetPermission() {
console.warn('Revoking permission to load widget - ', this.state.widgetUrl);
localStorage.removeItem(this.state.widgetPermissionId);
this.setState({hasPermissionToLoad: false});
}
formatAppTileName() {
let appTileName = "No name";
if (this.props.name && this.props.name.trim()) {
appTileName = this.props.name.trim();
}
return appTileName;
}
onClickMenuBar(ev) {
ev.preventDefault();
// Ignore clicks on menu bar children
if (ev.target !== this.refs.menu_bar) {
return;
}
// Toggle the view state of the apps drawer
dis.dispatch({
action: 'appsDrawer',
show: !this.props.show,
});
}
_getSafeUrl() {
const parsedWidgetUrl = url.parse(this.state.widgetUrl, true);
if (ENABLE_REACT_PERF) {
parsedWidgetUrl.search = null;
parsedWidgetUrl.query.react_perf = true;
}
let safeWidgetUrl = '';
if (ALLOWED_APP_URL_SCHEMES.indexOf(parsedWidgetUrl.protocol) !== -1) {
safeWidgetUrl = url.format(parsedWidgetUrl);
}
return safeWidgetUrl;
}
_getTileTitle() {
const name = this.formatAppTileName();
const titleSpacer = <span>&nbsp;-&nbsp;</span>;
let title = '';
if (this.state.widgetPageTitle && this.state.widgetPageTitle != this.formatAppTileName()) {
title = this.state.widgetPageTitle;
}
return (
<span>
<b>{ name }</b>
<span>{ title ? titleSpacer : '' }{ title }</span>
</span>
);
}
_onMinimiseClick(e) {
if (this.props.onMinimiseClick) {
this.props.onMinimiseClick();
}
}
_onPopoutWidgetClick(e) {
// Using Object.assign workaround as the following opens in a new window instead of a new tab.
// window.open(this._getSafeUrl(), '_blank', 'noopener=yes,noreferrer=yes');
Object.assign(document.createElement('a'),
{ target: '_blank', href: this._getSafeUrl(), rel: 'noopener noreferrer'}).click();
}
render() {
let appTileBody;
// Don't render widget if it is in the process of being deleted
if (this.state.deleting) {
return <div></div>;
}
// Note that there is advice saying allow-scripts shouldn't be used with allow-same-origin
// because that would allow the iframe to prgramatically remove the sandbox attribute, but
// this would only be for content hosted on the same origin as the riot client: anything
// hosted on the same origin as the client will get the same access as if you clicked
// a link to it.
const sandboxFlags = "allow-forms allow-popups allow-popups-to-escape-sandbox "+
"allow-same-origin allow-scripts allow-presentation";
// Additional iframe feature pemissions
// (see - https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-permissions-in-cross-origin-iframes and https://wicg.github.io/feature-policy/)
const iframeFeatures = "microphone; camera; encrypted-media;";
if (this.props.show) {
const loadingElement = (
<div className="mx_AppLoading_spinner_fadeIn">
<MessageSpinner msg='Loading...' />
</div>
);
if (this.state.initialising) {
appTileBody = (
<div className={'mx_AppTileBody ' + (this.state.loading ? 'mx_AppLoading' : '')}>
{ loadingElement }
</div>
);
} else if (this.state.hasPermissionToLoad == true) {
if (this.isMixedContent()) {
appTileBody = (
<div className="mx_AppTileBody">
<AppWarning errorMsg="Error - Mixed content" />
</div>
);
} else {
appTileBody = (
<div className={'mx_AppTileBody ' + (this.state.loading ? 'mx_AppLoading' : '')}>
{ this.state.loading && loadingElement }
{ /*
The "is" attribute in the following iframe tag is needed in order to enable rendering of the
"allow" attribute, which is unknown to react 15.
*/ }
<iframe
is
allow={iframeFeatures}
ref="appFrame"
src={this._getSafeUrl()}
allowFullScreen="true"
sandbox={sandboxFlags}
onLoad={this._onLoaded}
></iframe>
</div>
);
}
} else {
const isRoomEncrypted = MatrixClientPeg.get().isRoomEncrypted(this.props.room.roomId);
appTileBody = (
<div className="mx_AppTileBody">
<AppPermission
isRoomEncrypted={isRoomEncrypted}
url={this.state.widgetUrl}
onPermissionGranted={this._grantWidgetPermission}
/>
</div>
);
}
}
// editing is done in scalar
const showEditButton = Boolean(this._scalarClient && this._canUserModify());
const deleteWidgetLabel = this._deleteWidgetLabel();
let deleteIcon = 'img/cancel_green.svg';
let deleteClasses = 'mx_AppTileMenuBarWidget';
if (this._canUserModify()) {
deleteIcon = 'img/icon-delete-pink.svg';
deleteClasses += ' mx_AppTileMenuBarWidgetDelete';
}
// Picture snapshot - only show button when apps are maximised.
const showPictureSnapshotButton = this._hasCapability('screenshot') && this.props.show;
const showPictureSnapshotIcon = 'img/camera_green.svg';
const popoutWidgetIcon = 'img/button-new-window.svg';
const windowStateIcon = (this.props.show ? 'img/minimize.svg' : 'img/maximize.svg');
return (
<div className={this.props.fullWidth ? "mx_AppTileFullWidth" : "mx_AppTile"} id={this.props.id}>
{ this.props.showMenubar &&
<div ref="menu_bar" className="mx_AppTileMenuBar" onClick={this.onClickMenuBar}>
<span className="mx_AppTileMenuBarTitle" style={{pointerEvents: (this.props.handleMinimisePointerEvents ? 'all' : false)}}>
{ this.props.showMinimise && <TintableSvgButton
src={windowStateIcon}
className="mx_AppTileMenuBarWidget mx_AppTileMenuBarWidgetPadding"
title={_t('Minimize apps')}
width="10"
height="10"
onClick={this._onMinimiseClick}
/> }
{ this.props.showTitle && this._getTileTitle() }
</span>
<span className="mx_AppTileMenuBarWidgets">
{ /* Popout widget */ }
{ this.props.showPopout && <TintableSvgButton
src={popoutWidgetIcon}
className="mx_AppTileMenuBarWidget mx_AppTileMenuBarWidgetPadding"
title={_t('Popout widget')}
onClick={this._onPopoutWidgetClick}
width="10"
height="10"
/> }
{ /* Snapshot widget */ }
{ showPictureSnapshotButton && <TintableSvgButton
src={showPictureSnapshotIcon}
className="mx_AppTileMenuBarWidget mx_AppTileMenuBarWidgetPadding"
title={_t('Picture')}
onClick={this._onSnapshotClick}
width="10"
height="10"
/> }
{ /* Edit widget */ }
{ showEditButton && <TintableSvgButton
src="img/edit_green.svg"
className={"mx_AppTileMenuBarWidget " +
(this.props.showDelete ? "mx_AppTileMenuBarWidgetPadding" : "")}
title={_t('Edit')}
onClick={this._onEditClick}
width="10"
height="10"
/> }
{ /* Delete widget */ }
{ this.props.showDelete && <TintableSvgButton
src={deleteIcon}
className={deleteClasses}
title={_t(deleteWidgetLabel)}
onClick={this._onDeleteClick}
width="10"
height="10"
/> }
</span>
</div> }
{ appTileBody }
</div>
);
}
}
AppTile.displayName ='AppTile';
AppTile.propTypes = {
id: PropTypes.string.isRequired,
url: PropTypes.string.isRequired,
name: PropTypes.string.isRequired,
room: PropTypes.object.isRequired,
type: PropTypes.string.isRequired,
// Specifying 'fullWidth' as true will render the app tile to fill the width of the app drawer continer.
// This should be set to true when there is only one widget in the app drawer, otherwise it should be false.
fullWidth: PropTypes.bool,
// UserId of the current user
userId: PropTypes.string.isRequired,
// UserId of the entity that added / modified the widget
creatorUserId: PropTypes.string,
waitForIframeLoad: PropTypes.bool,
showMenubar: PropTypes.bool,
// Should the AppTile render itself
show: PropTypes.bool,
// Optional onEditClickHandler (overrides default behaviour)
onEditClick: PropTypes.func,
// Optional onDeleteClickHandler (overrides default behaviour)
onDeleteClick: PropTypes.func,
// Optional onMinimiseClickHandler
onMinimiseClick: PropTypes.func,
// Optionally hide the tile title
showTitle: PropTypes.bool,
// Optionally hide the tile minimise icon
showMinimise: PropTypes.bool,
// Optionally handle minimise button pointer events (default false)
handleMinimisePointerEvents: PropTypes.bool,
// Optionally hide the delete icon
showDelete: PropTypes.bool,
// Optionally hide the popout widget icon
showPopout: PropTypes.bool,
// Widget apabilities to allow by default (without user confirmation)
// NOTE -- Use with caution. This is intended to aid better integration / UX
// basic widget capabilities, e.g. injecting sticker message events.
whitelistCapabilities: PropTypes.array,
// Optional function to be called on widget capability request
// Called with an array of the requested capabilities
onCapabilityRequest: PropTypes.func,
// Is this an instance of a user widget
userWidget: PropTypes.bool,
};
AppTile.defaultProps = {
url: "",
waitForIframeLoad: true,
showMenubar: true,
showTitle: true,
showMinimise: true,
showDelete: true,
showPopout: true,
handleMinimisePointerEvents: false,
whitelistCapabilities: [],
userWidget: false,
};