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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
import {browserHistory} from 'react-router/es6';
import * as Utils from 'utils/utils.jsx';
import {Constants, ErrorPageTypes} from 'utils/constants.jsx';
function getPrefix() {
if (global.window.mm_current_user_id) {
return global.window.mm_current_user_id + '_';
}
console.warn('BrowserStore tried to operate without user present'); //eslint-disable-line no-console
return 'unknown_';
}
class BrowserStoreClass {
constructor() {
this.hasCheckedLocalStorage = false;
this.localStorageSupported = false;
}
setItem(name, value) {
this.setGlobalItem(getPrefix() + name, value);
}
getItem(name, defaultValue) {
return this.getGlobalItem(getPrefix() + name, defaultValue);
}
removeItem(name) {
this.removeGlobalItem(getPrefix() + name);
}
setGlobalItem(name, value) {
try {
if (this.isLocalStorageSupported()) {
localStorage.setItem(name, JSON.stringify(value));
} else {
sessionStorage.setItem(name, JSON.stringify(value));
}
} catch (err) {
console.log('An error occurred while setting local storage, clearing all props'); //eslint-disable-line no-console
localStorage.clear();
sessionStorage.clear();
window.location.reload(true);
}
}
getGlobalItem(name, defaultValue = null) {
var result = null;
try {
if (this.isLocalStorageSupported()) {
result = JSON.parse(localStorage.getItem(name));
} else {
result = JSON.parse(sessionStorage.getItem(name));
}
} catch (err) {
result = null;
}
if (!result) {
result = defaultValue;
}
return result;
}
removeGlobalItem(name) {
if (this.isLocalStorageSupported()) {
localStorage.removeItem(name);
} else {
sessionStorage.removeItem(name);
}
}
getLastServerVersion() {
return this.getGlobalItem('last_server_version');
}
setLastServerVersion(version) {
this.setGlobalItem('last_server_version', version);
}
signalLogout() {
if (this.isLocalStorageSupported()) {
// PLT-1285 store an identifier in session storage so we can catch if the logout came from this tab on IE11
const logoutId = Utils.generateId();
sessionStorage.setItem('__logout__', logoutId);
localStorage.setItem('__logout__', logoutId);
localStorage.removeItem('__logout__');
}
}
isSignallingLogout(logoutId) {
return logoutId === sessionStorage.getItem('__logout__');
}
signalLogin() {
if (this.isLocalStorageSupported()) {
// PLT-1285 store an identifier in session storage so we can catch if the logout came from this tab on IE11
const loginId = Utils.generateId();
sessionStorage.setItem('__login__', loginId);
localStorage.setItem('__login__', loginId);
localStorage.removeItem('__login__');
}
}
isSignallingLogin(loginId) {
return loginId === sessionStorage.getItem('__login__');
}
/**
* Preforms the given action on each item that has the given prefix
* Signature for action is action(key, value)
*/
actionOnGlobalItemsWithPrefix(prefix, action) {
var storage = sessionStorage;
if (this.isLocalStorageSupported()) {
storage = localStorage;
}
for (var key in storage) {
if (key.lastIndexOf(prefix, 0) === 0) {
action(key, this.getGlobalItem(key));
}
}
}
actionOnItemsWithPrefix(prefix, action) {
var globalPrefix = getPrefix();
var globalPrefixiLen = globalPrefix.length;
for (var key in sessionStorage) {
if (key.lastIndexOf(globalPrefix + prefix, 0) === 0) {
var userkey = key.substring(globalPrefixiLen);
action(userkey, this.getGlobalItem(key));
}
}
}
clear() {
// persist some values through logout since they're independent of which user is logged in
const logoutId = sessionStorage.getItem('__logout__');
const serverVersion = this.getLastServerVersion();
const landingPageSeen = this.hasSeenLandingPage();
const selectedTeams = this.getItem('selected_teams');
const recentEmojis = localStorage.getItem(Constants.RECENT_EMOJI_KEY);
sessionStorage.clear();
localStorage.clear();
if (recentEmojis) {
localStorage.setItem(Constants.RECENT_EMOJI_KEY, recentEmojis);
}
if (logoutId) {
sessionStorage.setItem('__logout__', logoutId);
}
if (serverVersion) {
this.setLastServerVersion(serverVersion);
}
if (landingPageSeen) {
this.setLandingPageSeen(landingPageSeen);
}
if (selectedTeams) {
this.setItem('selected_teams', selectedTeams);
}
}
isLocalStorageSupported() {
if (this.hasCheckedLocalStorage) {
return this.localStorageSupported;
}
this.localStorageSupported = false;
try {
localStorage.setItem('__testLocal__', '1');
if (localStorage.getItem('__testLocal__') === '1') {
this.localStorageSupported = true;
}
localStorage.removeItem('__testLocal__', '1');
} catch (e) {
this.localStorageSupported = false;
}
try {
sessionStorage.setItem('__testSession__', '1');
sessionStorage.removeItem('__testSession__');
} catch (e) {
// Session storage not usable, website is unusable
browserHistory.push('/error?type=' + ErrorPageTypes.LOCAL_STORAGE);
}
this.hasCheckedLocalStorage = true;
return this.localStorageSupported;
}
hasSeenLandingPage() {
if (this.isLocalStorageSupported()) {
return JSON.parse(sessionStorage.getItem('__landingPageSeen__'));
}
return true;
}
setLandingPageSeen(landingPageSeen) {
return sessionStorage.setItem('__landingPageSeen__', JSON.stringify(landingPageSeen));
}
}
var BrowserStore = new BrowserStoreClass();
export default BrowserStore;
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