1 files changed, 67 insertions, 0 deletions
diff --git a/Processing-js/libs/inc/Base64.js b/Processing-js/libs/inc/Base64.js
new file mode 100644
index 0000000..7c1ef07
--- /dev/null
+++ b/Processing-js/libs/inc/Base64.js
@@ -0,0 +1,67 @@
+// http://ntt.cc/2008/01/19/base64-encoder-decoder-with-javascript.html
+
+// window.atob and window.btoa
+
+(function (window) {
+
+	var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+	
+	window.btoa || (window.btoa = function encode64(input) {
+		input = escape(input);
+		var output = "";
+		var chr1, chr2, chr3 = "";
+		var enc1, enc2, enc3, enc4 = "";
+		var i = 0;
+		do {
+			chr1 = input.charCodeAt(i++);
+			chr2 = input.charCodeAt(i++);
+			chr3 = input.charCodeAt(i++);
+			enc1 = chr1 >> 2;
+			enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
+			enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
+			enc4 = chr3 & 63;
+			if (isNaN(chr2)) {
+				enc3 = enc4 = 64;
+			} else if (isNaN(chr3)) {
+				enc4 = 64;
+			}
+			output = output + keyStr.charAt(enc1) + keyStr.charAt(enc2) + keyStr.charAt(enc3) + keyStr.charAt(enc4);
+			chr1 = chr2 = chr3 = "";
+			enc1 = enc2 = enc3 = enc4 = "";
+		} while (i < input.length);
+		return output;
+	});
+	
+	window.atob || (window.atob = function(input) {
+		var output = "";
+		var chr1, chr2, chr3 = "";
+		var enc1, enc2, enc3, enc4 = "";
+		var i = 0;
+		// remove all characters that are not A-Z, a-z, 0-9, +, /, or =
+		var base64test = /[^A-Za-z0-9\+\/\=]/g;
+		if (base64test.exec(input)) {
+			alert("There were invalid base64 characters in the input text.\n" + "Valid base64 characters are A-Z, a-z, 0-9, '+', '/',and '='\n" + "Expect errors in decoding.");
+		}
+		input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
+		do {
+			enc1 = keyStr.indexOf(input.charAt(i++));
+			enc2 = keyStr.indexOf(input.charAt(i++));
+			enc3 = keyStr.indexOf(input.charAt(i++));
+			enc4 = keyStr.indexOf(input.charAt(i++));
+			chr1 = (enc1 << 2) | (enc2 >> 4);
+			chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
+			chr3 = ((enc3 & 3) << 6) | enc4;
+			output = output + String.fromCharCode(chr1);
+			if (enc3 != 64) {
+				output = output + String.fromCharCode(chr2);
+			}
+			if (enc4 != 64) {
+				output = output + String.fromCharCode(chr3);
+			}
+			chr1 = chr2 = chr3 = "";
+			enc1 = enc2 = enc3 = enc4 = "";
+		} while (i < input.length);
+		return unescape(output);
+	});
+
+}(this));
+\ No newline at end of file