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Decrypt m.file attachments

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This commit is contained in:
Mark Haines 2016-11-04 14:00:26 +00:00
parent 94bfe31857
commit 6ea0085290
1 changed files with 58 additions and 6 deletions
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64
src/components/views/messages/MFileBody.js
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@ -20,11 +20,17 @@ var React = require('react');
var filesize = require('filesize');
var MatrixClientPeg = require('../../../MatrixClientPeg');
var sdk = require('../../../index');
var dis = require("../../../dispatcher");
var DecryptFile = require('../../../utils/DecryptFile');
module.exports = React.createClass({
displayName: 'MFileBody',
getInitialState: function() {
return {
decryptedUrl: null,
};
},
presentableTextForFile: function(content) {
var linkText = 'Attachment';
if (content.body && content.body.length > 0) {
@ -47,21 +53,67 @@ module.exports = React.createClass({
return linkText;
},
_getContentUrl: function() {
var content = this.props.mxEvent.getContent();
if (content.file !== undefined) {
return this.state.decryptedUrl;
} else {
return MatrixClientPeg.get().mxcUrlToHttp(content.url);
}
},
componentDidMount: function() {
var content = this.props.mxEvent.getContent();
var self = this;
if (content.file !== undefined && this.state.decryptedUrl === null) {
DecryptFile.decryptFile(content.file).then(function(blob) {
if (!self._unmounted) {
self.setState({
decryptedUrl: window.URL.createObjectURL(blob),
});
}
}).catch(function (err) {
console.warn("Unable to decrypt attachment: ", err)
// Set a placeholder image when we can't decrypt the image.
self.refs.image.src = "img/warning.svg";
});
}
},
componentWillUnmount: function() {
this._unmounted = true;
if (this.state.decryptedUrl) {
window.URL.revokeObjectURL(this.state.decryptedUrl);
}
},
render: function() {
var content = this.props.mxEvent.getContent();
var cli = MatrixClientPeg.get();
var httpUrl = cli.mxcUrlToHttp(content.url);
var text = this.presentableTextForFile(content);
var TintableSvg = sdk.getComponent("elements.TintableSvg");
if (content.file !== undefined && this.state.decryptedUrl === null) {
if (httpUrl) {
// Need to decrypt the attachment
// The attachment is decrypted in componentDidMount.
// For now add an img tag with a spinner.
return (
<span className="mx_MFileBody" ref="body">
<img src="img/spinner.gif" ref="image"
alt={content.body} />
</span>
);
}
var contentUrl = this._getContentUrl();
if (contentUrl) {
if (this.props.tileShape === "file_grid") {
return (
<span className="mx_MFileBody">
<div className="mx_MImageBody_download">
<a className="mx_ImageBody_downloadLink" href={cli.mxcUrlToHttp(content.url)} target="_blank" rel="noopener">
<a className="mx_ImageBody_downloadLink" href={contentUrl} target="_blank" rel="noopener">
{ content.body && content.body.length > 0 ? content.body : "Attachment" }
</a>
<div className="mx_MImageBody_size">
@ -75,7 +127,7 @@ module.exports = React.createClass({
return (
<span className="mx_MFileBody">
<div className="mx_MImageBody_download">
<a href={cli.mxcUrlToHttp(content.url)} target="_blank" rel="noopener">
<a href={contentUrl} target="_blank" rel="noopener">
<TintableSvg src="img/download.svg" width="12" height="14"/>
Download {text}
</a>