base64tohex.js

(function() {
    var base64EncodeChars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
      , base64DecodeChars = new Array((-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),(-1),62,(-1),(-1),(-1),63,52,53,54,55,56,57,58,59,60,61,(-1),(-1),(-1),(-1),(-1),(-1),(-1),0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,(-1),(-1),(-1),(-1),(-1),(-1),26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,(-1),(-1),(-1),(-1),(-1));
    this.base64encode = function(e) {
        var r, a, c, h, o, t;
        for (c = e.length,
        a = 0,
        r = ''; a < c; ) {
            if (h = 255 & e.charCodeAt(a++),
            a == c) {
                r += base64EncodeChars.charAt(h >> 2),
                r += base64EncodeChars.charAt((3 & h) << 4),
                r += '==';
                break
            }
            if (o = e.charCodeAt(a++),
            a == c) {
                r += base64EncodeChars.charAt(h >> 2),
                r += base64EncodeChars.charAt((3 & h) << 4 | (240 & o) >> 4),
                r += base64EncodeChars.charAt((15 & o) << 2),
                r += '=';
                break
            }
            t = e.charCodeAt(a++),
            r += base64EncodeChars.charAt(h >> 2),
            r += base64EncodeChars.charAt((3 & h) << 4 | (240 & o) >> 4),
            r += base64EncodeChars.charAt((15 & o) << 2 | (192 & t) >> 6),
            r += base64EncodeChars.charAt(63 & t)
        }
        return r
    }
    this.base64decode = function(e) {
        var r, a, c, h, o, t, d;
        for (t = e.length,
        o = 0,
        d = ''; o < t; ) {
            do
                r = base64DecodeChars[255 & e.charCodeAt(o++)];
            while (o < t && r == -1);if (r == -1)
                break;
            do
                a = base64DecodeChars[255 & e.charCodeAt(o++)];
            while (o < t && a == -1);if (a == -1)
                break;
            d += String.fromCharCode(r << 2 | (48 & a) >> 4);
            do {
                if (c = 255 & e.charCodeAt(o++),
                61 == c)
                    return d;
                c = base64DecodeChars[c]
            } while (o < t && c == -1);if (c == -1)
                break;
            d += String.fromCharCode((15 & a) << 4 | (60 & c) >> 2);
            do {
                if (h = 255 & e.charCodeAt(o++),
                61 == h)
                    return d;
                h = base64DecodeChars[h]
            } while (o < t && h == -1);if (h == -1)
                break;
            d += String.fromCharCode((3 & c) << 6 | h)
        }
        return d
    }
    this.hexToBase64 = function(str) {
        return base64encode(String.fromCharCode.apply(null, str.replace(/\r|\n/g, "").replace(/([\da-fA-F]{2}) ?/g, "0x$1 ").replace(/ +$/, "").split(" ")));
    }
    this.Base64Tohex = function(str) {
        for (var i = 0, bin = base64decode(str.replace(/[ \r\n]+$/, "")), hex = []; i < bin.length; ++i) {
            var tmp = bin.charCodeAt(i).toString(16);
            if (tmp.length === 1)
                tmp = "0" + tmp;
            hex[hex.length] = tmp;
        }
        return hex.join("");
    }
}
)();
//hexToBase64 Base64Tohex base64decode base64encode