Update backup restore paths for SSSS

This updates all the various key backup entry points to ensure they use a flow
that supports backups stored under secret storage.

src/async-components/views/dialogs/keybackup/NewRecoveryMethodDialog.js

@@ -1,5 +1,6 @@
 /*
-Copyright 2018-2019 New Vector Ltd
+Copyright 2018, 2019 New Vector Ltd
+Copyright 2020 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.
@@ -40,9 +41,11 @@ export default class NewRecoveryMethodDialog extends React.PureComponent {
 
     onSetupClick = async () => {
         const RestoreKeyBackupDialog = sdk.getComponent('dialogs.keybackup.RestoreKeyBackupDialog');
-        Modal.createTrackedDialog('Restore Backup', '', RestoreKeyBackupDialog, {
+        Modal.createTrackedDialog(
-            onFinished: this.props.onFinished,
+            'Restore Backup', '', RestoreKeyBackupDialog, {
-        });
+                onFinished: this.props.onFinished,
+            }, null, /* priority = */ false, /* static = */ true,
+        );
     }
 
     render() {

src/components/views/dialogs/LogoutDialog.js

@@ -1,5 +1,6 @@
 /*
 Copyright 2018, 2019 New Vector Ltd
+Copyright 2020 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.
@@ -94,7 +95,10 @@ export default class LogoutDialog extends React.Component {
             // verified, so restore the backup which will give us the keys from it and
             // allow us to trust it (ie. upload keys to it)
             const RestoreKeyBackupDialog = sdk.getComponent('dialogs.keybackup.RestoreKeyBackupDialog');
-            Modal.createTrackedDialog('Restore Backup', '', RestoreKeyBackupDialog, {});
+            Modal.createTrackedDialog(
+                'Restore Backup', '', RestoreKeyBackupDialog, null, null,
+                /* priority = */ false, /* static = */ true,
+            );
         } else {
             Modal.createTrackedDialogAsync("Key Backup", "Key Backup",
                 import("../../../async-components/views/dialogs/keybackup/CreateKeyBackupDialog"),

src/components/views/dialogs/keybackup/RestoreKeyBackupDialog.js

@@ -1,5 +1,6 @@
 /*
 Copyright 2018, 2019 New Vector Ltd
+Copyright 2020 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.
@@ -15,17 +16,18 @@ limitations under the License.
 */
 
 import React from 'react';
+import { MatrixClient } from 'matrix-js-sdk';
+
 import sdk from '../../../../index';
 import MatrixClientPeg from '../../../../MatrixClientPeg';
 import Modal from '../../../../Modal';
-
-import { MatrixClient } from 'matrix-js-sdk';
-
 import { _t } from '../../../../languageHandler';
 import {Key} from "../../../../Keyboard";
+import { accessSecretStorage } from '../../../../CrossSigningManager';
 
 const RESTORE_TYPE_PASSPHRASE = 0;
 const RESTORE_TYPE_RECOVERYKEY = 1;
+const RESTORE_TYPE_SECRET_STORAGE = 2;
 
 /*
  * Dialog for restoring e2e keys from a backup and the user's recovery key
@@ -35,6 +37,7 @@ export default class RestoreKeyBackupDialog extends React.PureComponent {
         super(props);
         this.state = {
             backupInfo: null,
+            backupKeyStored: null,
             loading: false,
             loadError: null,
             restoreError: null,
@@ -148,6 +151,32 @@ export default class RestoreKeyBackupDialog extends React.PureComponent {
         }
     }
 
+    async _restoreWithSecretStorage() {
+        this.setState({
+            loading: true,
+            restoreError: null,
+            restoreType: RESTORE_TYPE_SECRET_STORAGE,
+        });
+        try {
+            // `accessSecretStorage` may prompt for storage access as needed.
+            const recoverInfo = await accessSecretStorage(async () => {
+                return MatrixClientPeg.get().restoreKeyBackupWithSecretStorage(
+                    this.state.backupInfo,
+                );
+            });
+            this.setState({
+                loading: false,
+                recoverInfo,
+            });
+        } catch (e) {
+            console.log("Error restoring backup", e);
+            this.setState({
+                restoreError: e,
+                loading: false,
+            });
+        }
+    }
+
     async _loadBackupStatus() {
         this.setState({
             loading: true,
@@ -155,10 +184,20 @@ export default class RestoreKeyBackupDialog extends React.PureComponent {
         });
         try {
             const backupInfo = await MatrixClientPeg.get().getKeyBackupVersion();
+            const backupKeyStored = await MatrixClientPeg.get().isKeyBackupKeyStored();
+            this.setState({
+                backupInfo,
+                backupKeyStored,
+            });
+
+            // If the backup key is stored, we can proceed directly to restore.
+            if (backupKeyStored) {
+                return this._restoreWithSecretStorage();
+            }
+
             this.setState({
                 loadError: null,
                 loading: false,
-                backupInfo,
             });
         } catch (e) {
             console.log("Error loading backup status", e);

src/components/views/rooms/RoomRecoveryReminder.js

@@ -1,5 +1,6 @@
 /*
 Copyright 2018, 2019 New Vector Ltd
+Copyright 2020 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.
@@ -70,7 +71,10 @@ export default class RoomRecoveryReminder extends React.PureComponent {
             // verified, so restore the backup which will give us the keys from it and
             // allow us to trust it (ie. upload keys to it)
             const RestoreKeyBackupDialog = sdk.getComponent('dialogs.keybackup.RestoreKeyBackupDialog');
-            Modal.createTrackedDialog('Restore Backup', '', RestoreKeyBackupDialog, {});
+            Modal.createTrackedDialog(
+                'Restore Backup', '', RestoreKeyBackupDialog, null, null,
+                /* priority = */ false, /* static = */ true,
+            );
         } else {
             Modal.createTrackedDialogAsync("Key Backup", "Key Backup",
                 import("../../../async-components/views/dialogs/keybackup/CreateKeyBackupDialog"),

src/components/views/settings/KeyBackupPanel.js

@@ -1,6 +1,6 @@
 /*
 Copyright 2018 New Vector Ltd
-Copyright 2019 The Matrix.org Foundation C.I.C.
+Copyright 2019, 2020 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.
@@ -181,22 +181,11 @@ export default class KeyBackupPanel extends React.PureComponent {
     }
 
     _restoreBackup = async () => {
-        // Use legacy path if backup key not stored in secret storage
+        const RestoreKeyBackupDialog = sdk.getComponent('dialogs.keybackup.RestoreKeyBackupDialog');
-        if (!this.state.backupKeyStored) {
+        Modal.createTrackedDialog(
-            const RestoreKeyBackupDialog = sdk.getComponent('dialogs.keybackup.RestoreKeyBackupDialog');
+            'Restore Backup', '', RestoreKeyBackupDialog, null, null,
-            Modal.createTrackedDialog('Restore Backup', '', RestoreKeyBackupDialog);
+            /* priority = */ false, /* static = */ true,
-            return;
+        );
-        }
-
-        try {
-            await accessSecretStorage(async () => {
-                await MatrixClientPeg.get().restoreKeyBackupWithSecretStorage(
-                    this.state.backupInfo,
-                );
-            });
-        } catch (e) {
-            console.log("Error restoring backup", e);
-        }
     }
 
     render() {