mirror of
https://github.com/element-hq/element-web
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Merge pull request #647 from matrix-org/rav/megolm_backup_ui
Import and export for Megolm session data
This commit is contained in:
Richard van der Hoff
GitHub
commit
dc7a169779
5 changed files with 346 additions and 70 deletions
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@ -47,10 +47,12 @@
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"browser-encrypt-attachment": "^0.3.0",
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"browser-request": "^0.3.3",
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"classnames": "^2.1.2",
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"commonmark": "^0.27.0",
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"draft-js": "^0.8.1",
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"draft-js-export-html": "^0.5.0",
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"draft-js-export-markdown": "^0.2.0",
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"emojione": "2.2.3",
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"file-saver": "^1.3.3",
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"filesize": "^3.1.2",
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"flux": "^2.0.3",
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"fuse.js": "^2.2.0",
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@ -59,7 +61,6 @@
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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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"commonmark": "^0.27.0",
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"matrix-js-sdk": "matrix-org/matrix-js-sdk#develop",
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"optimist": "^0.6.1",
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"q": "^1.4.1",
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@ -14,71 +14,158 @@ See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import FileSaver from 'file-saver';
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import React from 'react';
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import * as Matrix from 'matrix-js-sdk';
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import * as MegolmExportEncryption from '../../../utils/MegolmExportEncryption';
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import sdk from '../../../index';
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import * as MegolmExportEncryption from '../../../utils/MegolmExportEncryption';
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const PHASE_EDIT = 1;
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const PHASE_EXPORTING = 2;
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export default React.createClass({
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displayName: 'ExportE2eKeysDialog',
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propTypes: {
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matrixClient: React.PropTypes.instanceOf(Matrix.MatrixClient).isRequired,
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onFinished: React.PropTypes.func.isRequired,
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},
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getInitialState: function() {
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return {
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collectedPassword: false,
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phase: PHASE_EDIT,
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errStr: null,
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};
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},
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componentWillMount: function() {
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this._unmounted = false;
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},
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componentWillUnmount: function() {
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this._unmounted = true;
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},
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_onPassphraseFormSubmit: function(ev) {
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ev.preventDefault();
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console.log(this.refs.passphrase1.value);
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const passphrase = this.refs.passphrase1.value;
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if (passphrase !== this.refs.passphrase2.value) {
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this.setState({errStr: 'Passphrases must match'});
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return false;
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}
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if (!passphrase) {
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this.setState({errStr: 'Passphrase must not be empty'});
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return false;
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}
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this._startExport(passphrase);
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return false;
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},
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render: function() {
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let content;
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if (!this.state.collectedPassword) {
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content = (
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<div className="mx_Dialog_content">
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<p>
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This process will allow you to export the keys for messages
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you have received in encrypted rooms to a local file. You
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will then be able to import the file into another Matrix
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client in the future, so that client will also be able to
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decrypt these messages.
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</p>
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<p>
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The exported file will allow anyone who can read it to decrypt
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any encrypted messages that you can see, so you should be
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careful to keep it secure. To help with this, you should enter
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a passphrase below, which will be used to encrypt the exported
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data. It will only be possible to import the data by using the
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same passphrase.
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</p>
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<form onSubmit={this._onPassphraseFormSubmit}>
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<div className="mx_TextInputDialog_label">
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<label htmlFor="passphrase1">Enter passphrase</label>
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</div>
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<div>
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<input ref="passphrase1" id="passphrase1"
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className="mx_TextInputDialog_input"
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autoFocus={true} size="64" type="password"/>
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</div>
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<div className="mx_Dialog_buttons">
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<input className="mx_Dialog_primary" type="submit" value="Export" />
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</div>
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</form>
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</div>
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_startExport: function(passphrase) {
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// extra Promise.resolve() to turn synchronous exceptions into
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// asynchronous ones.
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Promise.resolve().then(() => {
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return this.props.matrixClient.exportRoomKeys();
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}).then((k) => {
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return MegolmExportEncryption.encryptMegolmKeyFile(
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JSON.stringify(k), passphrase
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);
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}
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}).then((f) => {
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const blob = new Blob([f], {
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type: 'text/plain;charset=us-ascii',
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});
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FileSaver.saveAs(blob, 'riot-keys.txt');
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this.props.onFinished(true);
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}).catch((e) => {
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if (this._unmounted) {
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return;
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}
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this.setState({
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errStr: e.message,
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phase: PHASE_EDIT,
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});
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});
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this.setState({
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errStr: null,
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phase: PHASE_EXPORTING,
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});
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},
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render: function() {
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const BaseDialog = sdk.getComponent('views.dialogs.BaseDialog');
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const AccessibleButton = sdk.getComponent('views.elements.AccessibleButton');
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const disableForm = (this.state.phase === PHASE_EXPORTING);
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return (
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<div className="mx_exportE2eKeysDialog">
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<div className="mx_Dialog_title">
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Export room keys
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</div>
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{content}
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</div>
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<BaseDialog className='mx_exportE2eKeysDialog'
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onFinished={this.props.onFinished}
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title="Export room keys"
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>
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<form onSubmit={this._onPassphraseFormSubmit}>
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<div className="mx_Dialog_content">
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<p>
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This process allows you to export the keys for messages
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you have received in encrypted rooms to a local file. You
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will then be able to import the file into another Matrix
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client in the future, so that client will also be able to
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decrypt these messages.
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</p>
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<p>
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The exported file will allow anyone who can read it to decrypt
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any encrypted messages that you can see, so you should be
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careful to keep it secure. To help with this, you should enter
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a passphrase below, which will be used to encrypt the exported
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data. It will only be possible to import the data by using the
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same passphrase.
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</p>
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<div className='error'>
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{this.state.errStr}
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</div>
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<div className='mx_E2eKeysDialog_inputTable'>
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<div className='mx_E2eKeysDialog_inputRow'>
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<div className='mx_E2eKeysDialog_inputLabel'>
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<label htmlFor='passphrase1'>
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Enter passphrase
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</label>
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</div>
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<div className='mx_E2eKeysDialog_inputCell'>
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<input ref='passphrase1' id='passphrase1'
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autoFocus={true} size='64' type='password'
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disabled={disableForm}
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/>
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</div>
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</div>
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<div className='mx_E2eKeysDialog_inputRow'>
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<div className='mx_E2eKeysDialog_inputLabel'>
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<label htmlFor='passphrase2'>
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Confirm passphrase
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</label>
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</div>
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<div className='mx_E2eKeysDialog_inputCell'>
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<input ref='passphrase2' id='passphrase2'
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size='64' type='password'
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disabled={disableForm}
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/>
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</div>
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</div>
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</div>
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</div>
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<div className='mx_Dialog_buttons'>
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<input className='mx_Dialog_primary' type='submit' value='Export'
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disabled={disableForm}
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/>
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<AccessibleButton element='button' onClick={this.props.onFinished}
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disabled={disableForm}>
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Cancel
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</AccessibleButton>
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</div>
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</form>
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</BaseDialog>
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);
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},
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});
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170
src/async-components/views/dialogs/ImportE2eKeysDialog.js
Normal file
170
src/async-components/views/dialogs/ImportE2eKeysDialog.js
Normal file
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@ -0,0 +1,170 @@
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/*
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Copyright 2017 Vector Creations Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import React from 'react';
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import * as Matrix from 'matrix-js-sdk';
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import * as MegolmExportEncryption from '../../../utils/MegolmExportEncryption';
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import sdk from '../../../index';
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function readFileAsArrayBuffer(file) {
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return new Promise((resolve, reject) => {
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const reader = new FileReader();
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reader.onload = (e) => {
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resolve(e.target.result);
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};
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reader.onerror = reject;
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reader.readAsArrayBuffer(file);
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});
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}
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const PHASE_EDIT = 1;
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const PHASE_IMPORTING = 2;
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export default React.createClass({
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displayName: 'ImportE2eKeysDialog',
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propTypes: {
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matrixClient: React.PropTypes.instanceOf(Matrix.MatrixClient).isRequired,
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onFinished: React.PropTypes.func.isRequired,
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},
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getInitialState: function() {
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return {
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enableSubmit: false,
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phase: PHASE_EDIT,
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errStr: null,
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};
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},
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componentWillMount: function() {
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this._unmounted = false;
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},
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componentWillUnmount: function() {
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this._unmounted = true;
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},
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_onFormChange: function(ev) {
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const files = this.refs.file.files || [];
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this.setState({
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enableSubmit: (this.refs.passphrase.value !== "" && files.length > 0),
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});
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},
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_onFormSubmit: function(ev) {
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ev.preventDefault();
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this._startImport(this.refs.file.files[0], this.refs.passphrase.value);
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return false;
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},
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_startImport: function(file, passphrase) {
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this.setState({
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errStr: null,
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phase: PHASE_IMPORTING,
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});
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return readFileAsArrayBuffer(file).then((arrayBuffer) => {
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return MegolmExportEncryption.decryptMegolmKeyFile(
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arrayBuffer, passphrase
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);
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}).then((keys) => {
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return this.props.matrixClient.importRoomKeys(JSON.parse(keys));
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}).then(() => {
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// TODO: it would probably be nice to give some feedback about what we've imported here.
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this.props.onFinished(true);
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}).catch((e) => {
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if (this._unmounted) {
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return;
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}
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this.setState({
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errStr: e.message,
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phase: PHASE_EDIT,
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});
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});
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},
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render: function() {
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const BaseDialog = sdk.getComponent('views.dialogs.BaseDialog');
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const AccessibleButton = sdk.getComponent('views.elements.AccessibleButton');
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const disableForm = (this.state.phase !== PHASE_EDIT);
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return (
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<BaseDialog className='mx_importE2eKeysDialog'
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onFinished={this.props.onFinished}
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title="Import room keys"
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>
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<form onSubmit={this._onFormSubmit}>
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<div className="mx_Dialog_content">
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<p>
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This process allows you to import encryption keys
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that you had previously exported from another Matrix
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client. You will then be able to decrypt any
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messages that the other client could decrypt.
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</p>
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<p>
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The export file will be protected with a passphrase.
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You should enter the passphrase here, to decrypt the
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file.
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</p>
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<div className='error'>
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{this.state.errStr}
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</div>
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<div className='mx_E2eKeysDialog_inputTable'>
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<div className='mx_E2eKeysDialog_inputRow'>
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<div className='mx_E2eKeysDialog_inputLabel'>
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<label htmlFor='importFile'>
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File to import
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</label>
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</div>
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<div className='mx_E2eKeysDialog_inputCell'>
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<input ref='file' id='importFile' type='file'
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autoFocus={true}
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onChange={this._onFormChange}
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disabled={disableForm} />
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</div>
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</div>
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<div className='mx_E2eKeysDialog_inputRow'>
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<div className='mx_E2eKeysDialog_inputLabel'>
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<label htmlFor='passphrase'>
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Enter passphrase
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</label>
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</div>
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<div className='mx_E2eKeysDialog_inputCell'>
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<input ref='passphrase' id='passphrase'
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size='64' type='password'
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onChange={this._onFormChange}
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disabled={disableForm}/>
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</div>
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</div>
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</div>
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</div>
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<div className='mx_Dialog_buttons'>
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<input className='mx_Dialog_primary' type='submit' value='Import'
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disabled={!this.state.enableSubmit || disableForm}
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/>
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<AccessibleButton element='button' onClick={this.props.onFinished}
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disabled={disableForm}>
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Cancel
|
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</AccessibleButton>
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</div>
|
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</form>
|
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</BaseDialog>
|
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);
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},
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});
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@ -411,6 +411,30 @@ module.exports = React.createClass({
|
|||
}).done();
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},
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_onExportE2eKeysClicked: function() {
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Modal.createDialogAsync(
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(cb) => {
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require.ensure(['../../async-components/views/dialogs/ExportE2eKeysDialog'], () => {
|
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cb(require('../../async-components/views/dialogs/ExportE2eKeysDialog'));
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}, "e2e-export");
|
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}, {
|
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matrixClient: MatrixClientPeg.get(),
|
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}
|
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);
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},
|
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_onImportE2eKeysClicked: function() {
|
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Modal.createDialogAsync(
|
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(cb) => {
|
||||
require.ensure(['../../async-components/views/dialogs/ImportE2eKeysDialog'], () => {
|
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cb(require('../../async-components/views/dialogs/ImportE2eKeysDialog'));
|
||||
}, "e2e-export");
|
||||
}, {
|
||||
matrixClient: MatrixClientPeg.get(),
|
||||
}
|
||||
);
|
||||
},
|
||||
|
||||
_renderUserInterfaceSettings: function() {
|
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var client = MatrixClientPeg.get();
|
||||
|
||||
|
|
@ -481,6 +505,23 @@ module.exports = React.createClass({
|
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const deviceId = client.deviceId;
|
||||
const identityKey = client.getDeviceEd25519Key() || "<not supported>";
|
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|
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let exportButton = null,
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importButton = null;
|
||||
|
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if (client.isCryptoEnabled) {
|
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exportButton = (
|
||||
<AccessibleButton className="mx_UserSettings_button"
|
||||
onClick={this._onExportE2eKeysClicked}>
|
||||
Export E2E room keys
|
||||
</AccessibleButton>
|
||||
);
|
||||
importButton = (
|
||||
<AccessibleButton className="mx_UserSettings_button"
|
||||
onClick={this._onImportE2eKeysClicked}>
|
||||
Import E2E room keys
|
||||
</AccessibleButton>
|
||||
);
|
||||
}
|
||||
return (
|
||||
<div>
|
||||
<h3>Cryptography</h3>
|
||||
|
|
@ -489,6 +530,8 @@ module.exports = React.createClass({
|
|||
<li><label>Device ID:</label> <span><code>{deviceId}</code></span></li>
|
||||
<li><label>Device key:</label> <span><code><b>{identityKey}</b></code></span></li>
|
||||
</ul>
|
||||
{exportButton}
|
||||
{importButton}
|
||||
</div>
|
||||
</div>
|
||||
);
|
||||
|
|
|
|||
25
src/index.js
25
src/index.js
|
|
@ -27,28 +27,3 @@ module.exports.resetSkin = function() {
|
|||
module.exports.getComponent = function(componentName) {
|
||||
return Skinner.getComponent(componentName);
|
||||
};
|
||||
|
||||
|
||||
/* hacky functions for megolm import/export until we give it a UI */
|
||||
import * as MegolmExportEncryption from './utils/MegolmExportEncryption';
|
||||
import MatrixClientPeg from './MatrixClientPeg';
|
||||
|
||||
window.exportKeys = function(password) {
|
||||
return MatrixClientPeg.get().exportRoomKeys().then((k) => {
|
||||
return MegolmExportEncryption.encryptMegolmKeyFile(
|
||||
JSON.stringify(k), password
|
||||
);
|
||||
}).then((f) => {
|
||||
console.log(new TextDecoder().decode(new Uint8Array(f)));
|
||||
}).done();
|
||||
};
|
||||
|
||||
window.importKeys = function(password, data) {
|
||||
const arrayBuffer = new TextEncoder().encode(data).buffer;
|
||||
return MegolmExportEncryption.decryptMegolmKeyFile(
|
||||
arrayBuffer, password
|
||||
).then((j) => {
|
||||
const k = JSON.parse(j);
|
||||
return MatrixClientPeg.get().importRoomKeys(k);
|
||||
});
|
||||
};
|
||||
|
|
|
|||
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Reference in a new issue