Ask for email address after setting password for the first time

So that the user can reset their password.

src/Modal.js

@@ -64,7 +64,6 @@ const AsyncWrapper = React.createClass({
 
     render: function() {
         const {loader, ...otherProps} = this.props;
-
         if (this.state.component) {
             const Component = this.state.component;
             return <Component {...otherProps} />;
@@ -199,4 +198,7 @@ class ModalManager {
     }
 }
 
-export default new ModalManager();
+if (!global.singletonModalManager) {
+    global.singletonModalManager = new ModalManager();
+}
+export default global.singletonModalManager;

src/components/views/dialogs/SetEmailDialog.js

@@ -0,0 +1,164 @@
+/*
+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.
+*/
+
+import q from 'q';
+import React from 'react';
+import sdk from '../../../index';
+import MatrixClientPeg from '../../../MatrixClientPeg';
+import classnames from 'classnames';
+import KeyCode from '../../../KeyCode';
+import Email from '../../../email';
+import AddThreepid from '../../../AddThreepid';
+import { _t, _tJsx } from '../../../languageHandler';
+import Modal from '../../../Modal';
+
+
+/**
+ * Prompt the user to set an email address.
+ *
+ * On success, `onFinished(true)` is called.
+ */
+export default React.createClass({
+    displayName: 'SetEmailDialog',
+    propTypes: {
+        onFinished: React.PropTypes.func.isRequired,
+    },
+
+    getInitialState: function() {
+        return {
+            emailAddress: null,
+            emailBusy: false,
+        };
+    },
+
+    componentDidMount: function() {
+    },
+
+    onEmailAddressChanged: function(value) {
+        this.setState({
+            emailAddress: value,
+        });
+    },
+
+    onSubmit: function() {
+        const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
+        const QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
+
+        const emailAddress = this.state.emailAddress;
+        if (!Email.looksValid(emailAddress)) {
+            Modal.createDialog(ErrorDialog, {
+                title: _t("Invalid Email Address"),
+                description: _t("This doesn't appear to be a valid email address"),
+            });
+            return;
+        }
+        this._addThreepid = new AddThreepid();
+        // we always bind emails when registering, so let's do the
+        // same here.
+        this._addThreepid.addEmailAddress(emailAddress, true).done(() => {
+            Modal.createDialog(QuestionDialog, {
+                title: _t("Verification Pending"),
+                description: _t(
+                    "Please check your email and click on the link it contains. Once this " +
+                    "is done, click continue.",
+                ),
+                button: _t('Continue'),
+                onFinished: this.onEmailDialogFinished,
+            });
+        }, (err) => {
+            this.setState({emailBusy: false});
+            console.error("Unable to add email address " + emailAddress + " " + err);
+            Modal.createDialog(ErrorDialog, {
+                title: _t("Unable to add email address"),
+                description: ((err && err.message) ? err.message : _t("Operation failed")),
+            });
+        });
+        this.setState({emailBusy: true});
+    },
+
+    onEmailDialogFinished: function(ok) {
+        if (ok) {
+            this.verifyEmailAddress();
+        } else {
+            this.setState({emailBusy: false});
+        }
+    },
+
+    verifyEmailAddress: function() {
+        this._addThreepid.checkEmailLinkClicked().done(() => {
+            this.props.onFinished(true);
+        }, (err) => {
+            this.setState({emailBusy: false});
+            if (err.errcode == 'M_THREEPID_AUTH_FAILED') {
+                const QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
+                const message = _t("Unable to verify email address.") + " " +
+                    _t("Please check your email and click on the link it contains. Once this is done, click continue.");
+                Modal.createDialog(QuestionDialog, {
+                    title: _t("Verification Pending"),
+                    description: message,
+                    button: _t('Continue'),
+                    onFinished: this.onEmailDialogFinished,
+                });
+            } else {
+                const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
+                console.error("Unable to verify email address: " + err);
+                Modal.createDialog(ErrorDialog, {
+                    title: _t("Unable to verify email address."),
+                    description: ((err && err.message) ? err.message : _t("Operation failed")),
+                });
+            }
+        });
+    },
+
+    render: function() {
+        const BaseDialog = sdk.getComponent('views.dialogs.BaseDialog');
+        const Spinner = sdk.getComponent('elements.Spinner');
+        const EditableText = sdk.getComponent('elements.EditableText');
+
+        const emailInput = this.state.emailBusy ? <Spinner /> : <EditableText
+            className="mx_SetEmailDialog_email_input"
+            placeholder={ _t("Email address") }
+            placeholderClassName="mx_SetEmailDialog_email_input_placeholder"
+            blurToCancel={ false }
+            onValueChanged={ this.onEmailAddressChanged } />;
+
+        return (
+            <BaseDialog className="mx_SetEmailDialog"
+                onFinished={this.props.onFinished}
+                title={this.props.title}
+            >
+                <div className="mx_Dialog_content">
+                    <p>
+                        { _t('This will allow you to reset your password and receive notifications.') }
+                    </p>
+                    { emailInput }
+                </div>
+                <div className="mx_Dialog_buttons">
+                    <input className="mx_Dialog_primary"
+                        type="submit"
+                        value={_t("Continue")}
+                        onClick={this.onSubmit}
+                    />
+                    <input
+                        type="submit"
+                        value={_t("Cancel")}
+                        onClick={this.props.onFinished}
+                    />
+                </div>
+            </BaseDialog>
+        );
+    },
+});

src/components/views/settings/ChangePassword.js

@@ -20,6 +20,8 @@ var React = require('react');
 var MatrixClientPeg = require("../../../MatrixClientPeg");
 var Modal = require("../../../Modal");
 var sdk = require("../../../index");
+
+import q from 'q';
 import AccessibleButton from '../elements/AccessibleButton';
 import { _t } from '../../../languageHandler';
 
@@ -140,7 +142,15 @@ module.exports = React.createClass({
         });
 
         cli.setPassword(authDict, newPassword).then(() => {
+            if (this.props.shouldAskForEmail) {
+                return this._optionallySetEmail().then((confirmed) => {
+                    this.props.onFinished({
+                        didSetEmail: confirmed,
+                    });
+                });
+            } else {
                 this.props.onFinished();
+            }
         }, (err) => {
             this.props.onError(err);
         }).finally(() => {
@@ -150,6 +160,20 @@ module.exports = React.createClass({
         }).done();
     },
 
+    _optionallySetEmail: function() {
+        const deferred = q.defer();
+        // Ask for an email otherwise the user has no way to reset their password
+        const SetEmailDialog = sdk.getComponent("dialogs.SetEmailDialog");
+        Modal.createDialog(SetEmailDialog, {
+            title: _t('Do you want to set an email address?'),
+            onFinished: (confirmed) => {
+                // ignore confirmed, setting an email is optional
+                deferred.resolve(confirmed);
+            },
+        });
+        return deferred.promise;
+    },
+
     _onExportE2eKeysClicked: function() {
         Modal.createDialogAsync(
             (cb) => {