init

common/base64.js

@@ -0,0 +1,74 @@
+(function (root, factory) {
+    if (typeof define === 'function' && define.amd) {
+        // AMD. Register as an anonymous module.
+        define([], function() {factory(root);});
+    } else factory(root);
+// node.js has always supported base64 conversions, while browsers that support
+// web workers support base64 too, but you may never know.
+})(typeof exports !== "undefined" ? exports : this, function(root) {
+    if (root.atob) {
+        // Some browsers' implementation of atob doesn't support whitespaces
+        // in the encoded string (notably, IE). This wraps the native atob
+        // in a function that strips the whitespaces.
+        // The original function can be retrieved in atob.original
+        try {
+            root.atob(" ");
+        } catch(e) {
+            root.atob = (function(atob) {
+                var func = function(string) {
+                    return atob(String(string).replace(/[\t\n\f\r ]+/g, ""));
+                };
+                func.original = atob;
+                return func;
+            })(root.atob);
+        }
+        return;
+    }
+
+        // base64 character set, plus padding character (=)
+    var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
+        // Regular expression to check formal correctness of base64 encoded strings
+        b64re = /^(?:[A-Za-z\d+\/]{4})*?(?:[A-Za-z\d+\/]{2}(?:==)?|[A-Za-z\d+\/]{3}=?)?$/;
+
+    root.btoa = function(string) {
+        string = String(string);
+        var bitmap, a, b, c,
+            result = "", i = 0,
+            rest = string.length % 3; // To determine the final padding
+
+        for (; i < string.length;) {
+            if ((a = string.charCodeAt(i++)) > 255
+                    || (b = string.charCodeAt(i++)) > 255
+                    || (c = string.charCodeAt(i++)) > 255)
+                throw new TypeError("Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the Latin1 range.");
+
+            bitmap = (a << 16) | (b << 8) | c;
+            result += b64.charAt(bitmap >> 18 & 63) + b64.charAt(bitmap >> 12 & 63)
+                    + b64.charAt(bitmap >> 6 & 63) + b64.charAt(bitmap & 63);
+        }
+
+        // If there's need of padding, replace the last 'A's with equal signs
+        return rest ? result.slice(0, rest - 3) + "===".substring(rest) : result;
+    };
+
+    root.atob = function(string) {
+        // atob can work with strings with whitespaces, even inside the encoded part,
+        // but only \t, \n, \f, \r and ' ', which can be stripped.
+        string = String(string).replace(/[\t\n\f\r ]+/g, "");
+        if (!b64re.test(string))
+            throw new TypeError("Failed to execute 'atob' on 'Window': The string to be decoded is not correctly encoded.");
+
+        // Adding the padding if missing, for semplicity
+        string += "==".slice(2 - (string.length & 3));
+        var bitmap, result = "", r1, r2, i = 0;
+        for (; i < string.length;) {
+            bitmap = b64.indexOf(string.charAt(i++)) << 18 | b64.indexOf(string.charAt(i++)) << 12
+                    | (r1 = b64.indexOf(string.charAt(i++))) << 6 | (r2 = b64.indexOf(string.charAt(i++)));
+
+            result += r1 === 64 ? String.fromCharCode(bitmap >> 16 & 255)
+                    : r2 === 64 ? String.fromCharCode(bitmap >> 16 & 255, bitmap >> 8 & 255)
+                    : String.fromCharCode(bitmap >> 16 & 255, bitmap >> 8 & 255, bitmap & 255);
+        }
+        return result;
+    };
+});