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- /*
- * Copyright (c) 2019 - 2020 Arnaud Vergnet.
- *
- * This file is part of Campus INSAT.
- *
- * Campus INSAT is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Campus INSAT 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Campus INSAT. If not, see <https://www.gnu.org/licenses/>.
- */
-
- // @flow
-
- import * as Keychain from 'react-native-keychain';
- import type {ApiDataLoginType} from '../utils/WebData';
- import {apiRequest, ERROR_TYPE} from '../utils/WebData';
-
- /**
- * champ: error
- *
- * 0 : SUCCESS -> pas d'erreurs
- * 1 : BAD_CREDENTIALS -> email ou mdp invalide
- * 2 : BAD_TOKEN -> session expirée
- * 3 : NO_CONSENT
- * 403 : FORBIDDEN -> accès a la ressource interdit
- * 500 : SERVER_ERROR -> pb coté serveur
- */
-
- const SERVER_NAME = 'amicale-insat.fr';
- const AUTH_PATH = 'password';
-
- export default class ConnectionManager {
- static instance: ConnectionManager | null = null;
-
- private token: string | null;
-
- constructor() {
- this.token = null;
- }
-
- /**
- * Gets this class instance or create one if none is found
- *
- * @returns {ConnectionManager}
- */
- static getInstance(): ConnectionManager {
- if (ConnectionManager.instance == null) {
- ConnectionManager.instance = new ConnectionManager();
- }
- return ConnectionManager.instance;
- }
-
- /**
- * Gets the current token
- *
- * @returns {string | null}
- */
- getToken(): string | null {
- return this.token;
- }
-
- /**
- * Tries to recover login token from the secure keychain
- *
- * @returns Promise<string>
- */
- async recoverLogin(): Promise<string> {
- return new Promise(
- (resolve: (token: string) => void, reject: () => void) => {
- const token = this.getToken();
- if (token != null) {
- resolve(token);
- } else {
- Keychain.getInternetCredentials(SERVER_NAME)
- .then((data: Keychain.UserCredentials | false) => {
- if (data && data.password != null) {
- this.token = data.password;
- resolve(this.token);
- } else {
- reject();
- }
- })
- .catch((): void => reject());
- }
- },
- );
- }
-
- /**
- * Check if the user has a valid token
- *
- * @returns {boolean}
- */
- isLoggedIn(): boolean {
- return this.getToken() !== null;
- }
-
- /**
- * Saves the login token in the secure keychain
- *
- * @param email
- * @param token
- * @returns Promise<void>
- */
- async saveLogin(email: string, token: string): Promise<void> {
- return new Promise((resolve: () => void, reject: () => void) => {
- Keychain.setInternetCredentials(SERVER_NAME, 'token', token)
- .then(() => {
- this.token = token;
- resolve();
- })
- .catch((): void => reject());
- });
- }
-
- /**
- * Deletes the login token from the keychain
- *
- * @returns Promise<void>
- */
- async disconnect(): Promise<void> {
- return new Promise((resolve: () => void, reject: () => void) => {
- Keychain.resetInternetCredentials(SERVER_NAME)
- .then(() => {
- this.token = null;
- resolve();
- })
- .catch((): void => reject());
- });
- }
-
- /**
- * Sends the given login and password to the api.
- * If the combination is valid, the login token is received and saved in the secure keychain.
- * If not, the promise is rejected with the corresponding error code.
- *
- * @param email
- * @param password
- * @returns Promise<void>
- */
- async connect(email: string, password: string): Promise<void> {
- return new Promise(
- (resolve: () => void, reject: (error: number) => void) => {
- const data = {
- email,
- password,
- };
- apiRequest<ApiDataLoginType>(AUTH_PATH, 'POST', data)
- .then((response: ApiDataLoginType) => {
- if (response.token != null) {
- this.saveLogin(email, response.token)
- .then((): void => resolve())
- .catch((): void => reject(ERROR_TYPE.TOKEN_SAVE));
- } else {
- reject(ERROR_TYPE.SERVER_ERROR);
- }
- })
- .catch((error: number): void => reject(error));
- },
- );
- }
-
- /**
- * Sends an authenticated request with the login token to the API
- *
- * @param path
- * @param params
- * @returns Promise<ApiGenericDataType>
- */
- async authenticatedRequest<T>(
- path: string,
- params: {[key: string]: any},
- ): Promise<T> {
- return new Promise(
- (resolve: (response: T) => void, reject: (error: number) => void) => {
- if (this.getToken() !== null) {
- const data = {
- ...params,
- token: this.getToken(),
- };
- apiRequest<T>(path, 'POST', data)
- .then((response: T): void => resolve(response))
- .catch((error: number): void => reject(error));
- } else {
- reject(ERROR_TYPE.TOKEN_RETRIEVE);
- }
- },
- );
- }
- }
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