Adds update restore from backup functionality

src/components/Configuration/CloudBackupRestore.vue

@@ -49,7 +49,7 @@
         label="Password"
         type="password"
       />
-      <Button>
+      <Button :click="restoreBackup">
         <template v-slot:text>Restore</template>
         <template v-slot:icon><IconRestore /></template>
       </Button>
@@ -64,7 +64,7 @@ import Button from '@/components/FormElements/Button';
 import Input from '@/components/FormElements/Input';
 import IconBackup from '@/assets/interface-icons/config-backup.svg';
 import IconRestore from '@/assets/interface-icons/config-restore.svg';
-import { backup, update } from '@/utils/CloudBackup';
+import { backup, update, restore } from '@/utils/CloudBackup';
 import { localStorageKeys } from '@/utils/defaults';
 
 export default {
@@ -87,6 +87,14 @@ export default {
     IconRestore,
   },
   methods: {
+    restoreBackup() {
+      restore(this.restoreCode, this.restorePassword)
+        .then((response) => {
+          this.restoreFromBackup(response, this.restoreCode);
+        }).catch((msg) => {
+          this.showErrorMsg(msg);
+        });
+    },
     checkPass() {
       const savedHash = localStorage[localStorageKeys.BACKUP_HASH] || undefined;
       if (!savedHash) {
@@ -121,10 +129,19 @@ export default {
           this.showErrorMsg('Unable to process request');
         });
     },
+    restoreFromBackup(config, backupId) {
+      localStorage.setItem(localStorageKeys.CONF_SECTIONS, JSON.stringify(config.sections));
+      localStorage.setItem(localStorageKeys.APP_CONFIG, JSON.stringify(config.appConfig));
+      localStorage.setItem(localStorageKeys.PAGE_INFO, JSON.stringify(config.pageInfo));
+      if (config.appConfig.theme) {
+        localStorage.setItem(localStorageKeys.THEME, config.appConfig.theme);
+      }
+      this.setBackupIdLocally(backupId, this.restorePassword);
+      this.showSuccessMsg('Config Restored Succesfully');
+      setTimeout(() => { location.reload(); }, 1500); // eslint-disable-line no-restricted-globals
+    },
     updateUiAfterBackup(backupId, isUpdate = false) {
-      const hash = this.makeHash(this.backupPassword);
-      localStorage.setItem(localStorageKeys.BACKUP_ID, backupId);
-      localStorage.setItem(localStorageKeys.BACKUP_HASH, hash);
+      this.setBackupIdLocally(backupId, this.backupPassword);
       this.showSuccessMsg(`${isUpdate ? 'Update' : 'Backup'} Completed Succesfully`);
       this.backupPassword = '';
     },
@@ -137,6 +154,12 @@ export default {
     makeHash(pass) {
       return sha256(pass).toString();
     },
+    setBackupIdLocally(backupId, pass) {
+      this.backupId = backupId;
+      const hash = this.makeHash(pass);
+      localStorage.setItem(localStorageKeys.BACKUP_ID, backupId);
+      localStorage.setItem(localStorageKeys.BACKUP_HASH, hash);
+    },
   },
 };
 </script>

src/utils/CloudBackup.js

@@ -1,10 +1,9 @@
-/* eslint-disable */
 import sha256 from 'crypto-js/sha256';
 import aes from 'crypto-js/aes';
 import Utf8 from 'crypto-js/enc-utf8';
 import axios from 'axios';
 
-const ENDPOINT = 'https://dashy-sync-service.as93.net/';
+const ENDPOINT = 'https://dashy-sync-service.as93.net';
 
 /* Stringify, encrypt and encode data for transmission */
 const encryptData = (data, password) => {
@@ -14,34 +13,38 @@ const encryptData = (data, password) => {
 };
 
 /* Decrypt, decode and parse received data */
-const decryptData = (data, password) => {
-  return aes.decrypt(data, password).toString(Utf8);
-};
+const decryptData = (data, password) => aes.decrypt(data, password).toString(Utf8);
 
 /* Returns a splice of the hash of the users password */
 const makeSubHash = (pass) => sha256(pass).toString().slice(0, 14);
 
 /* Makes the backup */
-export const backup = (data, password) => {
-  return axios.post(ENDPOINT, {
+export const backup = (data, password) => axios.post(ENDPOINT, {
   userData: encryptData(data, password),
   subHash: makeSubHash(password),
 });
-};
 
 /* Updates and existing backup */
-export const update = (data, password, backupId) => {
-  return axios.put(ENDPOINT, {
+export const update = (data, password, backupId) => axios.put(ENDPOINT, {
   backupId,
   userData: encryptData(data, password),
   subHash: makeSubHash(password),
 });
-};
+
+const encodeGetParams = p => Object.entries(p).map(kv => kv.map(encodeURIComponent).join('=')).join('&');
 
 /* Restores the backup */
 export const restore = (backupId, password) => {
-  // return axios.get(ENDPOINT, {
-  //   backupId,
-  //   subHash: makeSubHash(password),
-  // });
+  const params = encodeGetParams({ backupId, subHash: makeSubHash(password) });
+  const url = `${ENDPOINT}/?${params}`;
+  return new Promise((resolve, reject) => {
+    axios.get(url).then((response) => {
+      if (!response.data || response.data.errorMsg) {
+        reject(response.data.errorMsg || 'Error');
+      } else {
+        const decryptedData = decryptData(response.data.userData.userData, password);
+        try { resolve(JSON.parse(decryptedData)); } catch (e) { reject(e); }
+      }
+    });
+  });
 };