import js directory from jsrrdgraph for client side graph rendering

Source: https://github.com/manuelluis/jsrrdgraph@276b880

1 files changed, 143 insertions, 0 deletions

diff --git a/js/base64.js b/js/base64.js
new file mode 100644
index 0000000..7d9536a
--- /dev/null
+++ b/js/base64.js
@@ -0,0 +1,143 @@
+
+/**
+*
+*  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;
+        }
+
+}