From 5f98dae6b9019a44d84a69ded1782d54a692710e Mon Sep 17 00:00:00 2001
From: Ray Arayilakath <72509475+RayhanADev@users.noreply.github.com>
Date: Sun, 13 Jun 2021 00:12:50 +0000
Subject: [PATCH] feat: check if localStorage is allowed (SecurityError)
---
index.html | 2 +-
offline/index.html | 2 +-
source/game.js | 32 ++++++++++++++++++++++++--------
source/index.html | 2 +-
4 files changed, 27 insertions(+), 11 deletions(-)
diff --git a/index.html b/index.html
index 6d7b773..9d32854 100644
--- a/index.html
+++ b/index.html
@@ -1 +1 @@
-tether!
\ No newline at end of file
+tether!
\ No newline at end of file
diff --git a/offline/index.html b/offline/index.html
index 86f505e..6d19b33 100644
--- a/offline/index.html
+++ b/offline/index.html
@@ -1 +1 @@
- tether!
\ No newline at end of file
+ tether!
\ No newline at end of file
diff --git a/source/game.js b/source/game.js
index c5b8cf0..61b0c0b 100644
--- a/source/game.js
+++ b/source/game.js
@@ -1,5 +1,21 @@
document.body.classList.add('game');
+var storage = (function() {
+ var uid = new Date;
+ var storage;
+ var result;
+ try {
+ (storage = window.localStorage).setItem(uid, uid);
+ result = storage.getItem(uid) == uid;
+ storage.removeItem(uid);
+ return result && storage;
+ } catch (exception) {}
+ storage = function() { console.log('localStorage Disabled.') };
+ storage.getItem = function() { console.log('localStorage Disabled.') };
+ storage.setItem = function() { console.log('localStorage Disabled.') };
+ return storage;
+}());
+
var DEBUG = window.location.hash === '#DEBUG',
INFO = DEBUG || window.location.hash === '#INFO',
game,
@@ -15,13 +31,13 @@ var DEBUG = window.location.hash === '#DEBUG',
playButtonProximityThreshold = 30,
maximumPossibleDistanceBetweenTwoMasses,
highScoreCookieKey = 'tetherHighScore',
- highScore = localStorage.getItem(highScoreCookieKey) ?? 0,
+ highScore = storage.getItem(highScoreCookieKey) ?? 0,
musicMutedCookieKey = 'tetherMusicMuted',
lastDayCookieKey = 'tetherLastDate',
streakCountCookieKey = 'tetherStreakCount',
- streakCount = localStorage.getItem(streakCountCookieKey) ?? 0,
+ streakCount = storage.getItem(streakCountCookieKey) ?? 0,
subtitleText = "",
- lastDate = new Date(Number(localStorage.getItem(lastDayCookieKey))),
+ lastDate = new Date(Number(storage.getItem(lastDayCookieKey))),
lastTouchStart,
uidCookieKey = 'tetherId',
uid,
@@ -399,10 +415,10 @@ function initCanvas() {
var later48Hours = lastDate.getTime() + 2 * 86400000;
var currentDate = new Date();
- var streak = Number(localStorage.getItem(streakCountCookieKey));
+ var streak = Number(storage.getItem(streakCountCookieKey));
if (
- !Number(localStorage.getItem(lastDayCookieKey)) ||
+ !Number(storage.getItem(lastDayCookieKey)) ||
Number.isNaN(lastDate)
) {
saveCookie(lastDayCookieKey, currentDate.getTime());
@@ -473,8 +489,8 @@ function initCanvas() {
document.exitPointerLock =
document.exitPointerLock || document.mozExitPointerLock;
- for (var key in localStorage) {
- var value = localStorage.getItem(key);
+ for (var key in storage) {
+ var value = storage.getItem(key);
if (
achievements[key] ||
key === musicMutedCookieKey ||
@@ -1565,7 +1581,7 @@ function autoWave(difficulty) {
}
function saveCookie(key, value) {
- localStorage.setItem(key, value);
+ storage.setItem(key, value);
document.cookie = key + '=' + value + cookieSuffix;
}
diff --git a/source/index.html b/source/index.html
index b1f0ab4..eb66f73 100644
--- a/source/index.html
+++ b/source/index.html
@@ -13,7 +13,7 @@
-
+