Provide initial state for backupcodes in template

This saves a direct request to the server when loading the backup codes.
There is no need for this as the data is already known.

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

apps/twofactor_backupcodes/lib/Provider/BackupCodesProvider.php

@@ -148,7 +148,8 @@ class BackupCodesProvider implements IProvider, IProvidesPersonalSettings {
 	 * @return IPersonalProviderSettings
 	 */
 	public function getPersonalSettings(IUser $user): IPersonalProviderSettings {
-		return new Personal();
+		$state = $this->storage->getBackupCodesState($user);
+		return new Personal(base64_encode(json_encode($state)));
 	}
 
 }

apps/twofactor_backupcodes/lib/Settings/Personal.php

@@ -24,14 +24,22 @@ declare(strict_types=1);
 
 namespace OCA\TwoFactorBackupCodes\Settings;
 
-
 use OCP\Authentication\TwoFactorAuth\IPersonalProviderSettings;
 use OCP\Template;
 
 class Personal implements IPersonalProviderSettings {
 
+	/** @var string */
+	private $state;
+
+	public function __construct(string $state) {
+		$this->state = $state;
+	}
+
 	public function getBody(): Template {
-		return new Template('twofactor_backupcodes', 'personal');
+		$template = new Template('twofactor_backupcodes', 'personal');
+		$template->assign('state', $this->state);
+		return $template;
 	}
 
 }

apps/twofactor_backupcodes/package-lock.json

@@ -4839,6 +4839,11 @@
       "integrity": "sha512-x3LV3wdmmERhVCYy3quqA57NJW7F3i6faas++pJQWtknWT+n7k30F4TVdHvCLn48peTJFRvCpxs3UuFPqgeELg==",
       "dev": true
     },
+    "vuex": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/vuex/-/vuex-3.0.1.tgz",
+      "integrity": "sha512-wLoqz0B7DSZtgbWL1ShIBBCjv22GV5U+vcBFox658g6V0s4wZV9P4YjCNyoHSyIBpj1f29JBoNQIqD82cR4O3w=="
+    },
     "watchpack": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-1.6.0.tgz",

apps/twofactor_backupcodes/package.json

@@ -17,7 +17,8 @@
   "dependencies": {
     "nextcloud-axios": "^0.1.3",
     "nextcloud-password-confirmation": "^0.1.0",
-    "vue": "^2.5.17"
+    "vue": "^2.5.17",
+    "vuex": "^3.0.1"
   },
   "devDependencies": {
     "@babel/core": "^7.1.0",

apps/twofactor_backupcodes/src/service/BackupCodesService.js

@@ -1,11 +1,5 @@
 import Axios from 'nextcloud-axios'
 
-export function getState () {
-	const url = OC.generateUrl('/apps/twofactor_backupcodes/settings/state');
-
-	return Axios.get(url).then(resp => resp.data);
-}
-
 export function generateCodes () {
 	const url = OC.generateUrl('/apps/twofactor_backupcodes/settings/create');
 

apps/twofactor_backupcodes/src/settings.js

@@ -1,9 +1,15 @@
 import Vue from 'vue';
 import PersonalSettings from './views/PersonalSettings';
+import store from './store';
 
 Vue.prototype.t = t;
 
-export default new Vue({
-	el: '#twofactor-backupcodes-settings',
-	render: h => h(PersonalSettings)
-});
+const initialStateElem = JSON.parse(atob(document.getElementById('twofactor-backupcodes-initial-state').value));
+store.replaceState(
+	initialStateElem
+)
+
+const View = Vue.extend(PersonalSettings)
+new View({
+	store
+}).$mount('#twofactor-backupcodes-settings')

apps/twofactor_backupcodes/src/store.js

@@ -0,0 +1,69 @@
+/*
+ * @copyright 2019 Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author 2019 Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import Vue from 'vue'
+import Vuex from 'vuex'
+
+import {generateCodes} from './service/BackupCodesService'
+
+Vue.use(Vuex)
+
+export const mutations = {
+	setEnabled(state, enabled) {
+		Vue.set(state, 'enabled', enabled)
+	},
+	setTotal(state, total) {
+		Vue.set(state, 'total', total)
+	},
+	setUsed(state, used) {
+		Vue.set(state, 'used', used)
+	},
+	setCodes(state, codes) {
+		Vue.set(state, 'codes', codes)
+	}
+}
+
+export const actions = {
+	generate ({commit}) {
+		commit('setEnabled', false);
+
+		return generateCodes()
+			.then(({codes, state})  => {
+				commit('setEnabled', state.enabled);
+				commit('setTotal', state.total);
+				commit('setUsed', state.used);
+				commit('setCodes', codes);
+				return true;
+			});
+	}
+}
+
+export default new Vuex.Store({
+	strict: process.env.NODE_ENV !== 'production',
+	state: {
+		enabled: false,
+		total: 0,
+		used: 0,
+		codes: undefined
+	},
+	mutations,
+	actions
+})

apps/twofactor_backupcodes/src/views/PersonalSettings.vue

@@ -34,17 +34,13 @@
 
 <script>
 	import confirmPassword from 'nextcloud-password-confirmation';
-
-	import {getState, generateCodes} from '../service/BackupCodesService';
 	import {print} from '../service/PrintService';
 
 	export default {
 		name: "PersonalSettings",
 		data() {
 			return {
-				enabled: false,
 				generatingCodes: false,
-				codes: undefined
 			};
 		},
 		computed: {
@@ -55,30 +51,27 @@
 				return 'data:text/plain,' + encodeURIComponent(this.codes.reduce((prev, code) => {
 					return prev + code + '\r\n';
 				}, ''));
+			},
+			enabled: function() {
+				return this.$store.state.enabled
+			},
+			total: function() {
+				return this.$store.state.total
+			},
+			used: function() {
+				return this.$store.state.used
+			},
+			codes: function() {
+				return this.$store.state.codes
 			}
 		},
-		created: function() {
-			getState()
-				.then(state => {
-					this.enabled = state.enabled;
-					this.total = state.total;
-					this.used = state.used;
-				})
-				.catch(console.error.bind(this));
-		},
 		methods: {
 			generateBackupCodes: function() {
 				confirmPassword().then(() => {
 					// Hide old codes
-					this.enabled = false;
 					this.generatingCodes = true;
 
-					generateCodes().then(data => {
-						this.enabled = data.state.enabled;
-						this.total = data.state.total;
-						this.used = data.state.used;
-						this.codes = data.codes;
-
+					this.$store.dispatch('generate').then(data => {
 						this.generatingCodes = false;
 					}).catch(err => {
 						OC.Notification.showTemporary(t('twofactor_backupcodes', 'An error occurred while generating your backup codes'));

apps/twofactor_backupcodes/templates/personal.php

@@ -4,4 +4,6 @@ script('twofactor_backupcodes', 'settings');
 
 ?>
 
+<input type="hidden" id="twofactor-backupcodes-initial-state" value="<?php p($_['state']); ?>">
+
 <div id="twofactor-backupcodes-settings"></div>