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index.js
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index.js
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import { USER_SESSION, USER_DATA } from './constants';
import * as Cookies from "js-cookie";
import isPromise from 'is-promise';
import {
getSessionSuccess,
getSessionError,
getUserSessionSuccess,
getUserSessionError,
invalidSession
} from './actions';
import reducer from './reducer';
let instance;
export class sessionService {
constructor(store, options) {
instance = this;
sessionService.setOptions(store, options);
return instance;
}
static setOptions(store, {
driver,
validateSession,
refreshOnCheckAuth = false,
expires = 360,
redirectPath = 'login',
server = false
} = {}) {
instance.store = store;
instance.refreshOnCheckAuth = refreshOnCheckAuth;
instance.redirectPath = redirectPath;
instance.expires = expires;
instance.driver = driver;
instance.server = server;
instance.validateSession = validateSession;
// configure the storage
const storageOptions = {
name: 'redux-react-session'
};
const localforage = require('localforage');
if (driver && driver !== 'COOKIES') {
storageOptions.driver = localforage[driver];
}
instance.storage = localforage.createInstance(storageOptions);
}
static initSessionService(store, options) {
instance = new sessionService(store, options);
return sessionService.refreshFromLocalStorage();
}
static initServerSession(store, req, options) {
instance = new sessionService(store, { ...options, server: true });
const parseCookies = (req) => {
const list = {};
const rc = req.get('cookie');
rc && rc.split(';').forEach(cookie => {
const parts = cookie.split('=');
if (parts[0].trim() === USER_SESSION || parts[0].trim() === USER_DATA) {
list[parts[0].trim()] = JSON.parse(decodeURIComponent(parts[1]));
}
});
return list;
};
return sessionService.saveFromClient(parseCookies(req));
}
static saveFromClient(cookies) {
return new Promise((resolve, reject) => {
if (cookies[USER_SESSION]) {
sessionService.saveSession(cookies[USER_SESSION])
.then(() => {
if (cookies[USER_DATA]) {
sessionService.saveUser(cookies[USER_DATA])
.then(() => resolve());
} else {
return resolve();
}
});
} else {
instance.store.dispatch(getSessionError());
reject('Session not found');
}
});
}
static invalidateSession() {
instance.store.dispatch(invalidSession());
sessionService.deleteSession();
sessionService.deleteUser();
}
static attemptLoadUser() {
instance.store.dispatch(getSessionSuccess());
return sessionService.loadUser().then((user) => {
instance.store.dispatch(getUserSessionSuccess(user));
}).catch(() => {
instance.store.dispatch(getUserSessionError());
});
}
static refreshFromLocalStorage() {
return sessionService.loadSession()
.then((session) => {
if (instance.validateSession) {
let value = instance.validateSession(session);
if (isPromise(value)) {
return value.then(valid => {
if (!valid) {
throw new Error("Session is invalid");
}
return this.attemptLoadUser();
}).catch(() => {
this.invalidateSession();
});
} else if (!value) {
this.invalidateSession();
return;
}
}
return this.attemptLoadUser();
})
.catch(() => {
instance.store.dispatch(getSessionError());
});
}
static checkAuth(nextState, replace, next) {
const { refreshOnCheckAuth, store } = instance;
sessionService.loadSession()
.then(() => {
refreshOnCheckAuth && store.dispatch(getSessionSuccess());
sessionService.loadUser().then((user) => {
refreshOnCheckAuth && store.dispatch(getUserSessionSuccess(user));
next();
}).catch(() => next());
})
.catch(() => {
refreshOnCheckAuth && store.dispatch(getSessionError());
refreshOnCheckAuth && store.dispatch(getUserSessionError());
replace({
pathname: instance.redirectPath,
state: { nextPathname: nextState.location.pathname }
});
next();
});
}
static saveSession(session) {
return new Promise((resolve) => {
if (instance.server) {
instance[USER_SESSION] = session;
instance.store.dispatch(getSessionSuccess());
resolve();
} else if (instance.driver === 'COOKIES') {
Cookies.set(USER_SESSION, session, { expires: instance.expires });
instance.store.dispatch(getSessionSuccess());
resolve();
} else {
instance.storage.setItem(USER_SESSION, session)
.then(() => {
instance.store.dispatch(getSessionSuccess());
resolve();
})
.catch(() => {
Cookies.set(USER_SESSION, session, { expires: instance.expires });
instance.store.dispatch(getSessionSuccess());
resolve();
});
}
});
}
static loadSession() {
return new Promise((resolve, reject) => {
if (instance.server) {
instance[USER_SESSION] ? resolve(instance[USER_SESSION]) : reject();
} else if (instance.driver === 'COOKIES') {
const cookies = Cookies.getJSON(USER_SESSION);
cookies ? resolve(cookies) : reject('Session not found');
} else {
instance.storage.getItem(USER_SESSION)
.then((currentSession) => {
if (currentSession) {
resolve(currentSession);
} else {
const cookies = Cookies.getJSON(USER_SESSION);
cookies ? resolve(cookies) : reject('Session not found');
}
})
.catch(err => reject(err));
}
});
}
static deleteSession() {
return instance.storage.removeItem(USER_SESSION).then(() => {
instance.store.dispatch(getSessionError());
Cookies.remove(USER_SESSION);
delete instance[USER_SESSION];
});
}
static saveUser(user) {
return new Promise((resolve) => {
if (instance.server) {
instance[USER_DATA] = user;
instance.store.dispatch(getUserSessionSuccess(user));
resolve();
} else if (instance.driver === 'COOKIES') {
Cookies.set(USER_DATA, user, { expires: instance.expires });
instance.store.dispatch(getUserSessionSuccess(user));
resolve();
} else {
instance.storage.setItem(USER_DATA, user)
.then((user) => {
instance.store.dispatch(getUserSessionSuccess(user));
resolve();
})
.catch(() => {
instance.store.dispatch(getUserSessionSuccess(user));
Cookies.set(USER_DATA, user, { expires: instance.expires });
resolve();
});
}
});
}
static loadUser() {
return new Promise((resolve, reject) => {
if (instance.server) {
instance[USER_DATA] ? resolve(instance[USER_DATA]) : reject();
} else if (instance.driver === 'COOKIES') {
const cookies = Cookies.getJSON(USER_DATA);
cookies ? resolve(cookies) : reject('User not found');
} else {
instance.storage.getItem(USER_DATA)
.then((currentUser) => {
if (currentUser) {
resolve(currentUser);
} else {
const cookies = Cookies.getJSON(USER_DATA);
cookies ? resolve(cookies) : reject('User not found');
}
})
.catch(err => reject(err));
}
});
}
static deleteUser() {
return instance.storage.removeItem(USER_DATA).then(() => {
instance.store.dispatch(getUserSessionError());
Cookies.remove(USER_DATA);
delete instance[USER_DATA];
});
}
}
export const sessionReducer = reducer;