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- // @flow
-
- import * as Keychain from 'react-native-keychain';
- import type {ApiDataLoginType, ApiGenericDataType} 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;
-
- #email: string;
-
- #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 != null &&
- data.password != null &&
- typeof data.password === 'string'
- ) {
- 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;
- this.#email = email;
- 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(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(
- path: string,
- params: {...},
- ): Promise<ApiGenericDataType> {
- return new Promise(
- (
- resolve: (response: ApiGenericDataType) => void,
- reject: (error: number) => void,
- ) => {
- if (this.getToken() !== null) {
- const data = {
- ...params,
- token: this.getToken(),
- };
- apiRequest(path, 'POST', data)
- .then((response: ApiGenericDataType): void => resolve(response))
- .catch((error: number): void => reject(error));
- } else reject(ERROR_TYPE.TOKEN_RETRIEVE);
- },
- );
- }
- }
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