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Added node-couch module

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1 parent 97b22f1 commit a7d12a5518c3c2224c6aa3dd81baa967f63a1b4d @kurokikaze committed Apr 15, 2010
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  1. +146 −0 base64.js
  2. +266 −0 node-couch.js
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146 base64.js
@@ -0,0 +1,146 @@
+/**
+ * Refactored variant in order to properly encapsulate private/protected
+ * methods within a functional scope and make things look a lot cleaner
+ * and lintier for greater good.
+ *
+ * @voodootikigod
+ */
+
+
+/**
+ *
+ * Base64 encode / decode
+ * Adapted from: http://www.webtoolkit.info/
+ *
+ **/
+
+var Base64 = (function() {
+
+ // private property
+ var _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+
+ // private method for UTF-8 encoding
+ var _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
+ var _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;
+ };
+
+
+ return {
+ encode : function (input) {
+ var output = "";
+ var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
+ var i = 0;
+
+ input = _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 +
+ _keyStr.charAt(enc1) + _keyStr.charAt(enc2) +
+ _keyStr.charAt(enc3) + _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 = exports.base64._utf8_decode(output);
+
+ return output;
+
+ }
+ }
+})()
+
+exports.encode = Base64.encode;
+exports.decode = Base64.decode;
+
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