From 3c97d3f39661030d220508324168db733aa4734c Mon Sep 17 00:00:00 2001
From: zigah <zigah@razum.si>
Date: Sun, 3 Nov 2013 16:10:36 +0100
Subject: [PATCH 1/2] =?UTF-8?q?Replaced=20btoa=20and=20atob=20that=20have?=
 =?UTF-8?q?=20a=20problem=20with=20handling=20Unicode=20caharacters=20with?=
 =?UTF-8?q?=20code=20by=20Johan=20Sundstr=C3=B6m.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 index.html      |  1 +
 js/b64Utils.js  | 31 +++++++++++++++++++++++++++++++
 js/challenge.js |  2 +-
 js/game.js      |  2 +-
 4 files changed, 34 insertions(+), 2 deletions(-)
 create mode 100644 js/b64Utils.js

diff --git a/index.html b/index.html
index 1d862f8..20ab276 100644
--- a/index.html
+++ b/index.html
@@ -157,6 +157,7 @@
   <script src="js/login.js"></script>
   <script src="js/player.js"></script>
   <script src="js/utils.js"></script>
+  <script src="js/b64Utils.js"></script>
   <script src="js/welcome.js"></script>
 
   <!-- Start the process of loading the Google JavaScript client library -->
diff --git a/js/b64Utils.js b/js/b64Utils.js
new file mode 100644
index 0000000..98cb835
--- /dev/null
+++ b/js/b64Utils.js
@@ -0,0 +1,31 @@
+/**
+ * Created with Notepad++.
+ * User: Žiga Hajdukoviæ (zigah)
+ * Date: 2013-11-03
+ * Time: 15:55
+ *
+ * This two functions are intended to replace btoa and atob
+ * that have a problem with handling Unicode caharacters in
+ * a player's g+ name.
+ *
+ * The functions below were effectively copy pasted from ecmanaut.blogspot.com
+ * as suggested by MDN: https://developer.mozilla.org/en-US/docs/Web/API/window.btoa
+ * and written by Johan Sundström.
+ *
+ * In most browsers, calling window.btoa on a Unicode string 
+ * will cause a Character Out Of Range exception.
+ * To avoid this, consider this pattern, noted by Johan Sundström:
+ * http://ecmanaut.blogspot.com/2006/07/encoding-decoding-utf8-in-javascript.html
+ *
+ */
+"use strict";
+
+var b64Utils = b64Utils || {};
+
+b64Utils.utf8_to_b64 = function(str) {
+    return window.btoa(unescape(encodeURIComponent( str )));
+};
+
+b64Utils.b64_to_utf8 = function(str) {
+    return decodeURIComponent(escape(window.atob( str )));
+};
diff --git a/js/challenge.js b/js/challenge.js
index 5b46055..418d4bc 100644
--- a/js/challenge.js
+++ b/js/challenge.js
@@ -33,7 +33,7 @@ challenge.tryToLoad = function()
   var challengeString = challenge.getURLParameter('gamedata');
   if (challengeString && challengeString != 'null') {
     console.log("Received challenge string ", challengeString);
-    var decodedString = atob(challengeString);
+    var decodedString = b64Utils.b64_to_utf8(challengeString);
     console.log("Decoded as ", decodedString);
     var challengeObject = JSON.parse(decodedString);
     console.log("Parsed into ",challengeObject);
diff --git a/js/game.js b/js/game.js
index a56289f..2770ad1 100644
--- a/js/game.js
+++ b/js/game.js
@@ -142,7 +142,7 @@ game.populateBragButton = function() {
 
   // Let's JSONify it
   var challengeString = JSON.stringify(challengeObject);
-  challengeString = btoa(challengeString);
+  challengeString = b64Utils.utf8_to_b64(challengeString);
   var linkUrl = constants.LINK_PAGE_BASE + "?gamedata=" + challengeString;
 
   // If we wanted, we could also have a different link for the calltoaction

From b08b856a22107894d038a4682dd9a0b88d0db9d9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=BDiga=20Hajdukovi=C4=87?= <zigah@razum.si>
Date: Sun, 3 Nov 2013 16:30:03 +0100
Subject: [PATCH 2/2] fixed a typo in comments.

---
 js/b64Utils.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/js/b64Utils.js b/js/b64Utils.js
index 98cb835..ff10bb5 100644
--- a/js/b64Utils.js
+++ b/js/b64Utils.js
@@ -1,20 +1,20 @@
 /**
  * Created with Notepad++.
- * User: Žiga Hajdukoviæ (zigah)
+ * User: �iga Hajdukovi� (zigah)
  * Date: 2013-11-03
  * Time: 15:55
  *
- * This two functions are intended to replace btoa and atob
+ * These two functions are intended to replace btoa and atob
  * that have a problem with handling Unicode caharacters in
  * a player's g+ name.
  *
  * The functions below were effectively copy pasted from ecmanaut.blogspot.com
  * as suggested by MDN: https://developer.mozilla.org/en-US/docs/Web/API/window.btoa
- * and written by Johan Sundström.
+ * and written by Johan Sundstr�m.
  *
  * In most browsers, calling window.btoa on a Unicode string 
  * will cause a Character Out Of Range exception.
- * To avoid this, consider this pattern, noted by Johan Sundström:
+ * To avoid this, consider this pattern, noted by Johan Sundstr�m:
  * http://ecmanaut.blogspot.com/2006/07/encoding-decoding-utf8-in-javascript.html
  *
  */