Merge remote-tracking branch 'origin/master' into develop
This commit is contained in:
Mark Haines
commit
61921327c2
7 changed files with 399 additions and 109 deletions
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@ -42,6 +42,7 @@
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},
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"dependencies": {
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"babel-runtime": "^6.11.6",
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"browser-encrypt-attachment": "0.0.0",
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"browser-request": "^0.3.3",
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"classnames": "^2.1.2",
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"draft-js": "^0.8.1",
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|
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@ -53,6 +54,7 @@
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"fuse.js": "^2.2.0",
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"glob": "^5.0.14",
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"highlight.js": "^8.9.1",
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"isomorphic-fetch": "^2.2.1",
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"linkifyjs": "^2.1.3",
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"lodash": "^4.13.1",
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"marked": "^0.3.5",
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@ -23,6 +23,8 @@ var MatrixClientPeg = require('./MatrixClientPeg');
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var sdk = require('./index');
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var Modal = require('./Modal');
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var encrypt = require("browser-encrypt-attachment");
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function infoForImageFile(imageFile) {
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var deferred = q.defer();
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@ -81,6 +83,24 @@ function infoForVideoFile(videoFile) {
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return deferred.promise;
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}
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/**
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* Read the file as an ArrayBuffer.
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* @return {Promise} A promise that resolves with an ArrayBuffer when the file
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* is read.
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*/
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function readFileAsArrayBuffer(file) {
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const deferred = q.defer();
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const reader = new FileReader();
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reader.onload = function(e) {
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deferred.resolve(e.target.result);
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};
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reader.onerror = function(e) {
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deferred.reject(e);
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};
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reader.readAsArrayBuffer(file);
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return deferred.promise;
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}
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class ContentMessages {
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constructor() {
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@ -137,10 +157,26 @@ class ContentMessages {
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this.inprogress.push(upload);
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dis.dispatch({action: 'upload_started'});
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var encryptInfo = null;
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var error;
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var self = this;
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return def.promise.then(function() {
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upload.promise = matrixClient.uploadContent(file);
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if (matrixClient.isRoomEncrypted(roomId)) {
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// If the room is encrypted then encrypt the file before uploading it.
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// First read the file into memory.
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upload.promise = readFileAsArrayBuffer(file).then(function(data) {
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// Then encrypt the file.
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return encrypt.encryptAttachment(data);
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}).then(function(encryptResult) {
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// Record the information needed to decrypt the attachment.
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encryptInfo = encryptResult.info;
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// Pass the encrypted data as a Blob to the uploader.
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var blob = new Blob([encryptResult.data]);
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return matrixClient.uploadContent(blob);
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});
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} else {
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upload.promise = matrixClient.uploadContent(file);
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}
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return upload.promise;
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}).progress(function(ev) {
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if (ev) {
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@ -149,7 +185,19 @@ class ContentMessages {
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dis.dispatch({action: 'upload_progress', upload: upload});
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}
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}).then(function(url) {
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content.url = url;
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if (encryptInfo === null) {
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// If the attachment isn't encrypted then include the URL directly.
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content.url = url;
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} else {
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// If the attachment is encrypted then bundle the URL along
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// with the information needed to decrypt the attachment and
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// add it under a file key.
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encryptInfo.url = url;
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if (file.type) {
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encryptInfo.mimetype = file.type;
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}
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content.file = encryptInfo;
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}
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return matrixClient.sendMessage(roomId, content);
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}, function(err) {
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error = err;
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@ -21,29 +21,67 @@ import MFileBody from './MFileBody';
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import MatrixClientPeg from '../../../MatrixClientPeg';
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import sdk from '../../../index';
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import { decryptFile } from '../../../utils/DecryptFile';
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export default class MAudioBody extends React.Component {
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constructor(props) {
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super(props);
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this.state = {
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playing: false
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playing: false,
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decryptedUrl: null,
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}
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}
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onPlayToggle() {
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this.setState({
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playing: !this.state.playing
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});
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}
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render() {
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_getContentUrl() {
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const content = this.props.mxEvent.getContent();
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if (content.file !== undefined) {
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return this.state.decryptedUrl;
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} else {
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return MatrixClientPeg.get().mxcUrlToHttp(content.url);
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}
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}
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componentDidMount() {
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var content = this.props.mxEvent.getContent();
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var cli = MatrixClientPeg.get();
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if (content.file !== undefined && this.state.decryptedUrl === null) {
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decryptFile(content.file).done((url) => {
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this.setState({
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decryptedUrl: url
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});
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}, (err) => {
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console.warn("Unable to decrypt attachment: ", err)
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// Set a placeholder image when we can't decrypt the image.
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this.refs.image.src = "img/warning.svg";
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});
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}
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}
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render() {
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const content = this.props.mxEvent.getContent();
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if (content.file !== undefined && this.state.decryptedUrl === null) {
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// Need to decrypt the attachment
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// The attachment is decrypted in componentDidMount.
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// For now add an img tag with a spinner.
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return (
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<span className="mx_MAudioBody">
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<img src="img/spinner.gif" ref="image"
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alt={content.body} />
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</span>
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);
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}
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const contentUrl = this._getContentUrl();
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return (
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<span className="mx_MAudioBody">
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<audio src={cli.mxcUrlToHttp(content.url)} controls />
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<MFileBody {...this.props} />
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<audio src={contentUrl} controls />
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<MFileBody {...this.props} decryptedUrl={this.state.decryptedUrl} />
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</span>
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);
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}
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@ -16,15 +16,22 @@ limitations under the License.
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'use strict';
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var React = require('react');
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var filesize = require('filesize');
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var MatrixClientPeg = require('../../../MatrixClientPeg');
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var sdk = require('../../../index');
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var dis = require("../../../dispatcher");
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import React from 'react';
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import filesize from 'filesize';
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import MatrixClientPeg from '../../../MatrixClientPeg';
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import sdk from '../../../index';
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import {decryptFile} from '../../../utils/DecryptFile';
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module.exports = React.createClass({
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displayName: 'MFileBody',
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getInitialState: function() {
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return {
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decryptedUrl: (this.props.decryptedUrl ? this.props.decryptedUrl : null),
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};
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},
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presentableTextForFile: function(content) {
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var linkText = 'Attachment';
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if (content.body && content.body.length > 0) {
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@ -47,22 +54,88 @@ module.exports = React.createClass({
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return linkText;
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},
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render: function() {
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var content = this.props.mxEvent.getContent();
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var cli = MatrixClientPeg.get();
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_getContentUrl: function() {
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const content = this.props.mxEvent.getContent();
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if (content.file !== undefined) {
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return this.state.decryptedUrl;
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} else {
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return MatrixClientPeg.get().mxcUrlToHttp(content.url);
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}
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},
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var httpUrl = cli.mxcUrlToHttp(content.url);
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var text = this.presentableTextForFile(content);
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componentDidMount: function() {
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const content = this.props.mxEvent.getContent();
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if (content.file !== undefined && this.state.decryptedUrl === null) {
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decryptFile(content.file).done((url) => {
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this.setState({
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decryptedUrl: url,
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});
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}, (err) => {
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console.warn("Unable to decrypt attachment: ", err)
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// Set a placeholder image when we can't decrypt the image.
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this.refs.image.src = "img/warning.svg";
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});
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}
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},
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render: function() {
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const content = this.props.mxEvent.getContent();
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const text = this.presentableTextForFile(content);
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var TintableSvg = sdk.getComponent("elements.TintableSvg");
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if (content.file !== undefined && this.state.decryptedUrl === null) {
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if (httpUrl) {
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// Need to decrypt the attachment
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// The attachment is decrypted in componentDidMount.
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// For now add an img tag with a spinner.
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return (
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<span className="mx_MFileBody" ref="body">
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<img src="img/spinner.gif" ref="image"
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alt={content.body} />
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</span>
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);
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}
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const contentUrl = this._getContentUrl();
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const fileName = content.body && content.body.length > 0 ? content.body : "Attachment";
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var downloadAttr = undefined;
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if (this.state.decryptedUrl) {
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// If the file is encrypted then we MUST download it rather than displaying it
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// because Firefox is vunerable to XSS attacks in data:// URLs
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// and all browsers are vunerable to XSS attacks in blob: URLs
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// created with window.URL.createObjectURL
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// See https://bugzilla.mozilla.org/show_bug.cgi?id=255107
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// See https://w3c.github.io/FileAPI/#originOfBlobURL
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//
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// This is not a problem for unencrypted links because they are
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// either fetched from a different domain so are safe because of
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// the same-origin policy or they are fetch from the same domain,
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// in which case we trust that the homeserver will set a
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// Content-Security-Policy that disables script execution.
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// It is reasonable to trust the homeserver in that case since
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// it is the same domain that controls this javascript.
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//
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// We can't apply the same workaround for encrypted files because
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// we can't supply HTTP headers when the user clicks on a blob:
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// or data:// uri.
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//
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// We should probably provide a download attribute anyway so that
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// the file will have the correct name when the user tries to
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// download it. We can't provide a Content-Disposition header
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// like we would for HTTP.
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downloadAttr = fileName;
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}
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if (contentUrl) {
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if (this.props.tileShape === "file_grid") {
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return (
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<span className="mx_MFileBody">
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<div className="mx_MImageBody_download">
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<a className="mx_ImageBody_downloadLink" href={cli.mxcUrlToHttp(content.url)} target="_blank" rel="noopener">
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{ content.body && content.body.length > 0 ? content.body : "Attachment" }
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<a className="mx_ImageBody_downloadLink" href={contentUrl} target="_blank" rel="noopener" download={downloadAttr}>
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{ fileName }
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</a>
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<div className="mx_MImageBody_size">
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{ content.info && content.info.size ? filesize(content.info.size) : "" }
|
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|
|
@ -75,7 +148,7 @@ module.exports = React.createClass({
|
|||
return (
|
||||
<span className="mx_MFileBody">
|
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<div className="mx_MImageBody_download">
|
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<a href={cli.mxcUrlToHttp(content.url)} target="_blank" rel="noopener">
|
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<a href={contentUrl} target="_blank" rel="noopener" download={downloadAttr}>
|
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<TintableSvg src="img/download.svg" width="12" height="14"/>
|
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Download {text}
|
||||
</a>
|
||||
|
|
|
|||
|
|
@ -16,14 +16,15 @@ limitations under the License.
|
|||
|
||||
'use strict';
|
||||
|
||||
var React = require('react');
|
||||
var filesize = require('filesize');
|
||||
import React from 'react';
|
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import MFileBody from './MFileBody';
|
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import MatrixClientPeg from '../../../MatrixClientPeg';
|
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import ImageUtils from '../../../ImageUtils';
|
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import Modal from '../../../Modal';
|
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import sdk from '../../../index';
|
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import dis from '../../../dispatcher';
|
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import {decryptFile} from '../../../utils/DecryptFile';
|
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|
||||
var MatrixClientPeg = require('../../../MatrixClientPeg');
|
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var ImageUtils = require('../../../ImageUtils');
|
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var Modal = require('../../../Modal');
|
||||
var sdk = require('../../../index');
|
||||
var dis = require("../../../dispatcher");
|
||||
|
||||
module.exports = React.createClass({
|
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displayName: 'MImageBody',
|
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|
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@ -33,13 +34,20 @@ module.exports = React.createClass({
|
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mxEvent: React.PropTypes.object.isRequired,
|
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},
|
||||
|
||||
getInitialState: function() {
|
||||
return {
|
||||
decryptedUrl: null,
|
||||
};
|
||||
},
|
||||
|
||||
|
||||
onClick: function onClick(ev) {
|
||||
if (ev.button == 0 && !ev.metaKey) {
|
||||
ev.preventDefault();
|
||||
var content = this.props.mxEvent.getContent();
|
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var httpUrl = MatrixClientPeg.get().mxcUrlToHttp(content.url);
|
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var ImageView = sdk.getComponent("elements.ImageView");
|
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var params = {
|
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const content = this.props.mxEvent.getContent();
|
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const httpUrl = this._getContentUrl();
|
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const ImageView = sdk.getComponent("elements.ImageView");
|
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const params = {
|
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src: httpUrl,
|
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mxEvent: this.props.mxEvent
|
||||
};
|
||||
|
|
@ -55,7 +63,7 @@ module.exports = React.createClass({
|
|||
},
|
||||
|
||||
_isGif: function() {
|
||||
var content = this.props.mxEvent.getContent();
|
||||
const content = this.props.mxEvent.getContent();
|
||||
return (content && content.info && content.info.mimetype === "image/gif");
|
||||
},
|
||||
|
||||
|
|
@ -64,9 +72,7 @@ module.exports = React.createClass({
|
|||
return;
|
||||
}
|
||||
var imgElement = e.target;
|
||||
imgElement.src = MatrixClientPeg.get().mxcUrlToHttp(
|
||||
this.props.mxEvent.getContent().url
|
||||
);
|
||||
imgElement.src = this._getContentUrl();
|
||||
},
|
||||
|
||||
onImageLeave: function(e) {
|
||||
|
|
@ -77,14 +83,40 @@ module.exports = React.createClass({
|
|||
imgElement.src = this._getThumbUrl();
|
||||
},
|
||||
|
||||
_getContentUrl: function() {
|
||||
const content = this.props.mxEvent.getContent();
|
||||
if (content.file !== undefined) {
|
||||
return this.state.decryptedUrl;
|
||||
} else {
|
||||
return MatrixClientPeg.get().mxcUrlToHttp(content.url);
|
||||
}
|
||||
},
|
||||
|
||||
_getThumbUrl: function() {
|
||||
var content = this.props.mxEvent.getContent();
|
||||
return MatrixClientPeg.get().mxcUrlToHttp(content.url, 800, 600);
|
||||
const content = this.props.mxEvent.getContent();
|
||||
if (content.file !== undefined) {
|
||||
// TODO: Decrypt and use the thumbnail file if one is present.
|
||||
return this.state.decryptedUrl;
|
||||
} else {
|
||||
return MatrixClientPeg.get().mxcUrlToHttp(content.url, 800, 600);
|
||||
}
|
||||
},
|
||||
|
||||
componentDidMount: function() {
|
||||
this.dispatcherRef = dis.register(this.onAction);
|
||||
this.fixupHeight();
|
||||
const content = this.props.mxEvent.getContent();
|
||||
if (content.file !== undefined && this.state.decryptedUrl === null) {
|
||||
decryptFile(content.file).done((url) => {
|
||||
this.setState({
|
||||
decryptedUrl: url,
|
||||
});
|
||||
}, (err) => {
|
||||
console.warn("Unable to decrypt attachment: ", err)
|
||||
// Set a placeholder image when we can't decrypt the image.
|
||||
this.refs.image.src = "img/warning.svg";
|
||||
});
|
||||
}
|
||||
},
|
||||
|
||||
componentWillUnmount: function() {
|
||||
|
|
@ -103,14 +135,13 @@ module.exports = React.createClass({
|
|||
return;
|
||||
}
|
||||
|
||||
var content = this.props.mxEvent.getContent();
|
||||
|
||||
var thumbHeight = null;
|
||||
var timelineWidth = this.refs.body.offsetWidth;
|
||||
var maxHeight = 600; // let images take up as much width as they can so long as the height doesn't exceed 600px.
|
||||
const content = this.props.mxEvent.getContent();
|
||||
const timelineWidth = this.refs.body.offsetWidth;
|
||||
const maxHeight = 600; // let images take up as much width as they can so long as the height doesn't exceed 600px.
|
||||
// the alternative here would be 600*timelineWidth/800; to scale them down to fit inside a 4:3 bounding box
|
||||
|
||||
//console.log("trying to fit image into timelineWidth of " + this.refs.body.offsetWidth + " or " + this.refs.body.clientWidth);
|
||||
var thumbHeight = null;
|
||||
if (content.info) {
|
||||
thumbHeight = ImageUtils.thumbHeight(content.info.w, content.info.h, timelineWidth, maxHeight);
|
||||
}
|
||||
|
|
@ -119,45 +150,35 @@ module.exports = React.createClass({
|
|||
},
|
||||
|
||||
render: function() {
|
||||
var TintableSvg = sdk.getComponent("elements.TintableSvg");
|
||||
var content = this.props.mxEvent.getContent();
|
||||
var cli = MatrixClientPeg.get();
|
||||
const TintableSvg = sdk.getComponent("elements.TintableSvg");
|
||||
const content = this.props.mxEvent.getContent();
|
||||
|
||||
var download;
|
||||
if (this.props.tileShape === "file_grid") {
|
||||
download = (
|
||||
<div className="mx_MImageBody_download">
|
||||
<a className="mx_MImageBody_downloadLink" href={cli.mxcUrlToHttp(content.url)} target="_blank" rel="noopener">
|
||||
{content.body}
|
||||
</a>
|
||||
<div className="mx_MImageBody_size">
|
||||
{ content.info && content.info.size ? filesize(content.info.size) : "" }
|
||||
</div>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
else {
|
||||
download = (
|
||||
<div className="mx_MImageBody_download">
|
||||
<a href={cli.mxcUrlToHttp(content.url)} target="_blank" rel="noopener">
|
||||
<TintableSvg src="img/download.svg" width="12" height="14"/>
|
||||
Download {content.body} ({ content.info && content.info.size ? filesize(content.info.size) : "Unknown size" })
|
||||
</a>
|
||||
</div>
|
||||
if (content.file !== undefined && this.state.decryptedUrl === null) {
|
||||
|
||||
// Need to decrypt the attachment
|
||||
// The attachment is decrypted in componentDidMount.
|
||||
// For now add an img tag with a spinner.
|
||||
return (
|
||||
<span className="mx_MImageBody" ref="body">
|
||||
<img className="mx_MImageBody_thumbnail" src="img/spinner.gif" ref="image"
|
||||
alt={content.body} />
|
||||
</span>
|
||||
);
|
||||
}
|
||||
|
||||
var thumbUrl = this._getThumbUrl();
|
||||
const contentUrl = this._getContentUrl();
|
||||
const thumbUrl = this._getThumbUrl();
|
||||
|
||||
if (thumbUrl) {
|
||||
return (
|
||||
<span className="mx_MImageBody" ref="body">
|
||||
<a href={cli.mxcUrlToHttp(content.url)} onClick={ this.onClick }>
|
||||
<a href={contentUrl} onClick={ this.onClick }>
|
||||
<img className="mx_MImageBody_thumbnail" src={thumbUrl} ref="image"
|
||||
alt={content.body}
|
||||
onMouseEnter={this.onImageEnter}
|
||||
onMouseLeave={this.onImageLeave} />
|
||||
</a>
|
||||
{ download }
|
||||
<MFileBody {...this.props} decryptedUrl={this.state.decryptedUrl} />
|
||||
</span>
|
||||
);
|
||||
} else if (content.body) {
|
||||
|
|
|
|||
|
|
@ -16,16 +16,24 @@ limitations under the License.
|
|||
|
||||
'use strict';
|
||||
|
||||
var React = require('react');
|
||||
var filesize = require('filesize');
|
||||
|
||||
var MatrixClientPeg = require('../../../MatrixClientPeg');
|
||||
var Modal = require('../../../Modal');
|
||||
var sdk = require('../../../index');
|
||||
import React from 'react';
|
||||
import MFileBody from './MFileBody';
|
||||
import MatrixClientPeg from '../../../MatrixClientPeg';
|
||||
import Model from '../../../Modal';
|
||||
import sdk from '../../../index';
|
||||
import { decryptFile } from '../../../utils/DecryptFile';
|
||||
import q from 'q';
|
||||
|
||||
module.exports = React.createClass({
|
||||
displayName: 'MVideoBody',
|
||||
|
||||
getInitialState: function() {
|
||||
return {
|
||||
decryptedUrl: null,
|
||||
decryptedThumbnailUrl: null,
|
||||
};
|
||||
},
|
||||
|
||||
thumbScale: function(fullWidth, fullHeight, thumbWidth, thumbHeight) {
|
||||
if (!fullWidth || !fullHeight) {
|
||||
// Cannot calculate thumbnail height for image: missing w/h in metadata. We can't even
|
||||
|
|
@ -48,59 +56,92 @@ module.exports = React.createClass({
|
|||
}
|
||||
},
|
||||
|
||||
_getContentUrl: function() {
|
||||
const content = this.props.mxEvent.getContent();
|
||||
if (content.file !== undefined) {
|
||||
return this.state.decryptedUrl;
|
||||
} else {
|
||||
return MatrixClientPeg.get().mxcUrlToHttp(content.url);
|
||||
}
|
||||
},
|
||||
|
||||
_getThumbUrl: function() {
|
||||
const content = this.props.mxEvent.getContent();
|
||||
if (content.file !== undefined) {
|
||||
return this.state.decryptedThumbnailUrl;
|
||||
} else if (content.info.thumbnail_url) {
|
||||
return MatrixClientPeg.get().mxcUrlToHttp(content.info.thumbnail_url);
|
||||
} else {
|
||||
return null;
|
||||
}
|
||||
},
|
||||
|
||||
componentDidMount: function() {
|
||||
const content = this.props.mxEvent.getContent();
|
||||
if (content.file !== undefined && this.state.decryptedUrl === null) {
|
||||
var thumbnailPromise = q(null);
|
||||
if (content.info.thumbnail_file) {
|
||||
thumbnailPromise = decryptFile(
|
||||
content.info.thumbnail_file
|
||||
);
|
||||
}
|
||||
thumbnailPromise.then((thumbnailUrl) => {
|
||||
decryptFile(content.file).then((contentUrl) => {
|
||||
this.setState({
|
||||
decryptedUrl: contentUrl,
|
||||
decryptedThumbnailUrl: thumbnailUrl,
|
||||
});
|
||||
});
|
||||
}).catch((err) => {
|
||||
console.warn("Unable to decrypt attachment: ", err)
|
||||
// Set a placeholder image when we can't decrypt the image.
|
||||
this.refs.image.src = "img/warning.svg";
|
||||
}).done();
|
||||
}
|
||||
},
|
||||
|
||||
render: function() {
|
||||
var content = this.props.mxEvent.getContent();
|
||||
var cli = MatrixClientPeg.get();
|
||||
const content = this.props.mxEvent.getContent();
|
||||
|
||||
if (content.file !== undefined && this.state.decryptedUrl === null) {
|
||||
// Need to decrypt the attachment
|
||||
// The attachment is decrypted in componentDidMount.
|
||||
// For now add an img tag with a spinner.
|
||||
return (
|
||||
<span className="mx_MImageBody" ref="body">
|
||||
<img className="mx_MImageBody_thumbnail" src="img/spinner.gif" ref="image"
|
||||
alt={content.body} />
|
||||
</span>
|
||||
);
|
||||
}
|
||||
|
||||
const contentUrl = this._getContentUrl();
|
||||
const thumbUrl = this._getThumbUrl();
|
||||
|
||||
var height = null;
|
||||
var width = null;
|
||||
var poster = null;
|
||||
var preload = "metadata";
|
||||
if (content.info) {
|
||||
var scale = this.thumbScale(content.info.w, content.info.h, 480, 360);
|
||||
const scale = this.thumbScale(content.info.w, content.info.h, 480, 360);
|
||||
if (scale) {
|
||||
width = Math.floor(content.info.w * scale);
|
||||
height = Math.floor(content.info.h * scale);
|
||||
}
|
||||
|
||||
if (content.info.thumbnail_url) {
|
||||
poster = cli.mxcUrlToHttp(content.info.thumbnail_url);
|
||||
if (thumbUrl) {
|
||||
poster = thumbUrl;
|
||||
preload = "none";
|
||||
}
|
||||
}
|
||||
|
||||
var download;
|
||||
if (this.props.tileShape === "file_grid") {
|
||||
download = (
|
||||
<div className="mx_MImageBody_download">
|
||||
<a className="mx_MImageBody_downloadLink" href={cli.mxcUrlToHttp(content.url)} target="_blank" rel="noopener">
|
||||
{content.body}
|
||||
</a>
|
||||
<div className="mx_MImageBody_size">
|
||||
{ content.info && content.info.size ? filesize(content.info.size) : "" }
|
||||
</div>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
else {
|
||||
var TintableSvg = sdk.getComponent("elements.TintableSvg");
|
||||
download = (
|
||||
<div className="mx_MImageBody_download">
|
||||
<a href={cli.mxcUrlToHttp(content.url)} target="_blank" rel="noopener">
|
||||
<TintableSvg src="img/download.svg" width="12" height="14"/>
|
||||
Download {content.body} ({ content.info && content.info.size ? filesize(content.info.size) : "Unknown size" })
|
||||
</a>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
|
||||
return (
|
||||
<span className="mx_MVideoBody">
|
||||
<video className="mx_MVideoBody" src={cli.mxcUrlToHttp(content.url)} alt={content.body}
|
||||
<video className="mx_MVideoBody" src={contentUrl} alt={content.body}
|
||||
controls preload={preload} autoPlay={false}
|
||||
height={height} width={width} poster={poster}>
|
||||
</video>
|
||||
{ download }
|
||||
<MFileBody {...this.props} decryptedUrl={this.state.decryptedUrl} />
|
||||
</span>
|
||||
);
|
||||
},
|
||||
|
|
|
|||
67
src/utils/DecryptFile.js
Normal file
67
src/utils/DecryptFile.js
Normal file
|
|
@ -0,0 +1,67 @@
|
|||
/*
|
||||
Copyright 2016 OpenMarket 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.
|
||||
*/
|
||||
|
||||
// Pull in the encryption lib so that we can decrypt attachments.
|
||||
import encrypt from 'browser-encrypt-attachment';
|
||||
// Pull in a fetch polyfill so we can download encrypted attachments.
|
||||
import 'isomorphic-fetch';
|
||||
// Grab the client so that we can turn mxc:// URLs into https:// URLS.
|
||||
import MatrixClientPeg from '../MatrixClientPeg';
|
||||
import q from 'q';
|
||||
|
||||
|
||||
/**
|
||||
* Read blob as a data:// URI.
|
||||
* @return {Promise} A promise that resolves with the data:// URI.
|
||||
*/
|
||||
function readBlobAsDataUri(file) {
|
||||
var deferred = q.defer();
|
||||
var reader = new FileReader();
|
||||
reader.onload = function(e) {
|
||||
deferred.resolve(e.target.result);
|
||||
};
|
||||
reader.onerror = function(e) {
|
||||
deferred.reject(e);
|
||||
};
|
||||
reader.readAsDataURL(file);
|
||||
return deferred.promise;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Decrypt a file attached to a matrix event.
|
||||
* @param file {Object} The json taken from the matrix event.
|
||||
* This passed to [link]{@link https://github.com/matrix-org/browser-encrypt-attachments}
|
||||
* as the encryption info object, so will also have the those keys in addition to
|
||||
* the keys below.
|
||||
* @param file.url {string} An mxc:// URL for the encrypted file.
|
||||
* @param file.mimetype {string} The MIME-type of the plaintext file.
|
||||
*/
|
||||
export function decryptFile(file) {
|
||||
const url = MatrixClientPeg.get().mxcUrlToHttp(file.url);
|
||||
// Download the encrypted file as an array buffer.
|
||||
return q(fetch(url)).then(function(response) {
|
||||
return response.arrayBuffer();
|
||||
}).then(function(responseData) {
|
||||
// Decrypt the array buffer using the information taken from
|
||||
// the event content.
|
||||
return encrypt.decryptAttachment(responseData, file);
|
||||
}).then(function(dataArray) {
|
||||
// Turn the array into a Blob and give it the correct MIME-type.
|
||||
var blob = new Blob([dataArray], {type: file.mimetype});
|
||||
return readBlobAsDataUri(blob);
|
||||
});
|
||||
}
|
||||
Loading…
Reference in a new issue