Add cross-signing diagnostic panel

This is not part of any designs, so it may be short-lived, but it's quite handy
for diagnosing issues with cross-signing at least while the feature is in
development.

src/components/views/settings/CrossSigningPanel.js

@@ -0,0 +1,100 @@
+/*
+Copyright 2019 The Matrix.org Foundation C.I.C.
+
+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 React from 'react';
+
+import MatrixClientPeg from '../../../MatrixClientPeg';
+import { _t } from '../../../languageHandler';
+import sdk from '../../../index';
+import Modal from '../../../Modal';
+
+export default class CrossSigningPanel extends React.PureComponent {
+    constructor(props) {
+        super(props);
+        this.state = this._getUpdatedStatus();
+    }
+
+    _getUpdatedStatus() {
+        // XXX: Add public accessors if we keep this around in production
+        const cli = MatrixClientPeg.get();
+        const crossSigning = cli._crypto._crossSigningInfo;
+        const secretStorage = cli._crypto._secretStorage;
+        const crossSigningPublicKeysOnDevice = crossSigning.getId();
+        const crossSigningPrivateKeysInStorage = crossSigning.isStoredInSecretStorage(secretStorage);
+        const secretStorageKeyInAccount = secretStorage.hasKey();
+
+        return {
+            crossSigningPublicKeysOnDevice,
+            crossSigningPrivateKeysInStorage,
+            secretStorageKeyInAccount,
+        };
+    }
+
+    _bootstrapSecureSecretStorage = async () => {
+        try {
+            const InteractiveAuthDialog = sdk.getComponent("dialogs.InteractiveAuthDialog");
+            await MatrixClientPeg.get().bootstrapSecretStorage({
+                doInteractiveAuthFlow: async (makeRequest) => {
+                    const { finished } = Modal.createTrackedDialog(
+                        'Cross-signing keys dialog', '', InteractiveAuthDialog,
+                        {
+                            title: _t("Send cross-signing keys to homeserver"),
+                            matrixClient: MatrixClientPeg.get(),
+                            makeRequest,
+                        },
+                    );
+                    await finished;
+                },
+            });
+            this.setState(this._getUpdatedStatus());
+        } catch (e) {
+            console.error(e);
+        }
+    }
+
+    render() {
+        const AccessibleButton = sdk.getComponent("elements.AccessibleButton");
+        const {
+            crossSigningPublicKeysOnDevice,
+            crossSigningPrivateKeysInStorage,
+            secretStorageKeyInAccount,
+        } = this.state;
+
+        return (
+            <div>
+                <table className="mx_CrossSigningPanel_statusList">
+                    <tr>
+                        <td>{_t("Cross-signing public keys:")}</td>
+                        <td>{crossSigningPublicKeysOnDevice ? _t("on device") : _t("not found")}</td>
+                    </tr>
+                    <tr>
+                        <td>{_t("Cross-signing private keys:")}</td>
+                        <td>{crossSigningPrivateKeysInStorage ? _t("in secret storage") : _t("not found")}</td>
+                    </tr>
+                    <tr>
+                        <td>{_t("Secret storage public key:")}</td>
+                        <td>{secretStorageKeyInAccount ? _t("in account data") : _t("not found")}</td>
+                    </tr>
+                </table>
+                <div className="mx_CrossSigningPanel_buttonRow">
+                    <AccessibleButton kind="primary" onClick={this._bootstrapSecureSecretStorage}>
+                        {_t("Bootstrap Secure Secret Storage")}
+                    </AccessibleButton>
+                </div>
+            </div>
+        );
+    }
+}