Created
July 12, 2018 15:57
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Auth Service for Gun.js
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| import { gun } from './gun.service'; | |
| export const STATUS_SUCCESS = 'success'; | |
| export const STATUS_ERROR = 'error'; | |
| const ACTION_CREATE = 'create'; | |
| const ACTION_AUTH = 'auth'; | |
| const SESSION_KEY_USERNAME = 'rt_username'; | |
| const SESSION_KEY_PASSWORD = 'rt_password'; | |
| export interface Credentials { | |
| username: string; | |
| password: string; | |
| } | |
| export interface FriendlyResponse { | |
| status: string; | |
| message: string; | |
| data?: any; | |
| } | |
| class AuthService { | |
| private referer: string = ''; | |
| public async isAuthenticated(): Promise<FriendlyResponse> { | |
| const credentials: Credentials|null = this.getCredentials(); | |
| const errorResponse: FriendlyResponse = { status: STATUS_ERROR, message: 'please login'}; | |
| if (!credentials) { | |
| return errorResponse; | |
| } | |
| try { | |
| const response = await this.login(credentials); | |
| return response; | |
| } catch (e) { | |
| this.unsetCredentials(); | |
| } | |
| return errorResponse; | |
| } | |
| public login(credentials: Credentials): Promise<FriendlyResponse> { | |
| return this.auth(credentials, ACTION_AUTH, 'loggedin'); | |
| } | |
| public register(credentials: Credentials): Promise<FriendlyResponse> { | |
| return this.auth(credentials, ACTION_CREATE, 'registered'); | |
| } | |
| private auth(credentials: Credentials, action: string, message: string): Promise<FriendlyResponse> { | |
| return new Promise((resolve, reject) => { | |
| gun.user()[action](credentials.username, credentials.password, (ack) => { | |
| if (ack.err || ack.status === 'error') { | |
| reject({ status: STATUS_ERROR, message: ack.err || ack.message}); | |
| } else { | |
| this.setCredentials(credentials); | |
| resolve({ status: STATUS_SUCCESS, message }); | |
| } | |
| }); | |
| }); | |
| } | |
| public async logout() { | |
| this.unsetCredentials(); | |
| gun.user().leave(); | |
| } | |
| private getCredentials(): Credentials|null { | |
| const username: string = sessionStorage.getItem(SESSION_KEY_USERNAME) || ''; | |
| const password: string = sessionStorage.getItem(SESSION_KEY_PASSWORD) || ''; | |
| if (!username || !password) { | |
| return null; | |
| } | |
| return { username, password }; | |
| } | |
| private setCredentials(credentials: Credentials) { | |
| sessionStorage.setItem(SESSION_KEY_USERNAME, credentials.username); | |
| sessionStorage.setItem(SESSION_KEY_PASSWORD, credentials.password); | |
| } | |
| private unsetCredentials() { | |
| sessionStorage.removeItem(SESSION_KEY_USERNAME); | |
| sessionStorage.removeItem(SESSION_KEY_PASSWORD); | |
| } | |
| public setReferrer(url: string) { | |
| this.referer = url; | |
| } | |
| public getReferer(): string { | |
| return this.referer; | |
| } | |
| } | |
| export default new AuthService(); |
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