From 1b154797ab6029c676805eeae112bccd0f0a9022 Mon Sep 17 00:00:00 2001
From: "Eric A. Miller" <emiller@cpan.org>
Date: Tue, 12 Aug 2014 23:08:55 -0400
Subject: [PATCH] JS base64 encode / decode

---
 .../public/javascripts/webtoolkit.base64.js   | 138 ++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 Netdisco/share/public/javascripts/webtoolkit.base64.js

diff --git a/Netdisco/share/public/javascripts/webtoolkit.base64.js b/Netdisco/share/public/javascripts/webtoolkit.base64.js
new file mode 100644
index 00000000..946e54bd
--- /dev/null
+++ b/Netdisco/share/public/javascripts/webtoolkit.base64.js
@@ -0,0 +1,138 @@
+/**
+ *
+ *  Base64 encode / decode
+ *  http://www.webtoolkit.info/
+ *
+ **/
+
+var Base64 = {
+
+    // private property
+    _keyStr: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
+
+    // public method for encoding
+    encode: function(input) {
+        var output = "";
+        var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
+        var i = 0;
+
+        input = Base64._utf8_encode(input);
+
+        while (i < input.length) {
+
+            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 +
+                this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
+                this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);
+
+        }
+
+        return output;
+    },
+
+    // public method for decoding
+    decode: function(input) {
+        var output = "";
+        var chr1, chr2, chr3;
+        var enc1, enc2, enc3, enc4;
+        var i = 0;
+
+        input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
+
+        while (i < input.length) {
+
+            enc1 = this._keyStr.indexOf(input.charAt(i++));
+            enc2 = this._keyStr.indexOf(input.charAt(i++));
+            enc3 = this._keyStr.indexOf(input.charAt(i++));
+            enc4 = this._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);
+            }
+
+        }
+
+        output = Base64._utf8_decode(output);
+
+        return output;
+
+    },
+
+    // private method for UTF-8 encoding
+    _utf8_encode: function(string) {
+        string = string.replace(/\r\n/g, "\n");
+        var utftext = "";
+
+        for (var n = 0; n < string.length; n++) {
+
+            var c = string.charCodeAt(n);
+
+            if (c < 128) {
+                utftext += String.fromCharCode(c);
+            } else if ((c > 127) && (c < 2048)) {
+                utftext += String.fromCharCode((c >> 6) | 192);
+                utftext += String.fromCharCode((c & 63) | 128);
+            } else {
+                utftext += String.fromCharCode((c >> 12) | 224);
+                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
+                utftext += String.fromCharCode((c & 63) | 128);
+            }
+
+        }
+
+        return utftext;
+    },
+
+    // private method for UTF-8 decoding
+    _utf8_decode: function(utftext) {
+        var string = "";
+        var i = 0;
+        var c = c1 = c2 = 0;
+
+        while (i < utftext.length) {
+
+            c = utftext.charCodeAt(i);
+
+            if (c < 128) {
+                string += String.fromCharCode(c);
+                i++;
+            } else if ((c > 191) && (c < 224)) {
+                c2 = utftext.charCodeAt(i + 1);
+                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
+                i += 2;
+            } else {
+                c2 = utftext.charCodeAt(i + 1);
+                c3 = utftext.charCodeAt(i + 2);
+                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
+                i += 3;
+            }
+
+        }
+
+        return string;
+    }
+
+}
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