如何解码此URL（Base64和UTF8的组合）？

Question

我遇到了一个需要解码的网址。

尝试多个base64（utf8）和JS url解码器在线后，它没有用，虽然后者确实有效。

网址是;

  

starplayer：//%3Curl%3Ebolwl6pIrBrL1GEf7V%2F5Uy6eoFPW77xb5jrS%2BCqRb3%2BoaVq%2Fm3REcqkDQzNsEu2JH6Q2ysUzG73Is93y%2FhmRNK10znrzHKOmEcFITgVDIQeGRVDk7iMBeDth%2BNzmZLIK1yDadYIyBvUPAJ4JRiHzevUVOQ8FMVUJzWAtA5qONGf40KaP31iKvMICFJ3lRjI1cuclOg4KxDo8GeQfmsS7xCAbX1XSWMNlEQ%2Fqzaaht2Gj1fWfbgo%2FsJbGVGSr5swv7ezk4S77LV%2BLpT%2FGbRLbovv0X%2BE4bAQFBtbxfsJ%2BjRU%3D%3Cbase_url%3Ehttp%3A%2F%2Fwww.etoosindia。 COM％2F％3Cwidth％3E720％3Cheight％3E500％3Ctopmost％3Etrue％3Cresizing％3Eundefined％3Ccookie％3EX2dhPUdBMS4yLjM2NzU5MzMwNS4xNDk4MjExMjczOyBjb29raWVfdWlkPTsgbWVtX25tPVpHOXVkQ0JqWVd4czsgbWVtX2lkPVoyeHdaM1ZvWkdOQWMyaGhjbXRzWVhObGNuTXVZMjl0OyBtZW1fY2Q9TnpreU1EVTU7IF9femxjbWlkPWhBZ1hnVGM4bU1Iekxl％3Ccaption％3ERXRvb3MlMjBJbmRpYQ％3D％3D

将上述内容放入url解码器后，我得到了;   starplayer://<url>bolwl6pIrBrL1GEf7V/5Uy6eoFPW77xb5jrS+CqRb3+oaVq/m3REcqkDQzNsEu2JH6Q2ysUzG73Is93y/hmRNK10znrzHKOmEcFITgVDIQeGRVDk7iMBeDth+NzmZLIK1yDadYIyBvUPAJ4JRiHzevUVOQ8FMVUJzWAtA5qONGf40KaP31iKvMICFJ3lRjI1cuclOg4KxDo8GeQfmsS7xCAbX1XSWMNlEQ/qzaaht2Gj1fWfbgo/sJbGVGSr5swv7ezk4S77LV+LpT/GbRLbovv0X+E4bAQFBtbxfsJ+jRU=<base_url>http://www.etoosindia.com/<width>720<height>500<topmost>true<resizing>undefined<cookie>X2dhPUdBMS4yLjM2NzU5MzMwNS4xNDk4MjExMjczOyBjb29raWVfdWlkPTsgbWVtX25tPVpHOXVkQ0JqWVd4czsgbWVtX2lkPVoyeHdaM1ZvWkdOQWMyaGhjbXRzWVhObGNuTXVZMjl0OyBtZW1fY2Q9TnpreU1EVTU7IF9femxjbWlkPWhBZ1hnVGM4bU1Iekxl<caption>RXRvb3MlMjBJbmRpYQ==

上面的url是由我在下面附加的脚本解码的（见结尾）;

var STARPLAYER_EXE_NOT_INSTALLED = "The StarPlayer is not installed.";
var STARPLAYER_EXE_WANT_TO_INSTALL = "Do you want to install?";
var STARPLAYER_UNKNOWN_INSTALLED = "Has the StarPlayer is running normally?";
var StarPlayerExe = {};
StarPlayerExe.run = function() {
    if (typeof this.url == "undefined") {
        alert("undefined url");
        return
    }
    var a = this;
    StarPlayerLaunchUri(a.getUrl(), function() {
        a.result(true, a.install)
    }, function() {
        a.result(false, a.install)
    }, function() {
        a.unKnownResult(a.install)
    })
}
;
function base_url() {
    var b = location.protocol;
    var a = location.host;
    return b + "//" + a + "/"
}
StarPlayerExe.getUrl = function() {
    var a = "<url>" + this.url + "<base_url>" + base_url() + "<width>" + this.width + "<height>" + this.height + "<topmost>" + this.topmost + "<resizing>" + this.resizing + "<cookie>" + Base64.encode(document.cookie) + "<caption>" + Base64.encode(encodeURIComponent(this.caption));
    return "starplayer://" + encodeURIComponent(a)
}
;
StarPlayerExe.result = function(a, c) {
    if (a == false) {
        var b = confirm(STARPLAYER_EXE_NOT_INSTALLED + "\n" + STARPLAYER_EXE_WANT_TO_INSTALL);
        if (b == true) {
            window.location.href = c
        }
    }
}
;
StarPlayerExe.unKnownResult = function(b) {
    if (COOKIE.get("starplayer_installed") != "true") {
        var a = confirm(STARPLAYER_UNKNOWN_INSTALLED);
        if (a == true) {
            COOKIE.set("starplayer_installed", "true", 60)
        } else {
            window.location.href = b
        }
    }
}
;
function StarPlayerLaunchUri(g, d, b, o) {
    var s, k, a, j, n, l, m, h, r;
    function f(e) {
        if (typeof e === "function") {
            e()
        }
    }
    function p(t) {
        var e;
        if (!t) {
            t = document.body
        }
        e = document.createElement("iframe");
        e.style.display = "none";
        t.appendChild(e);
        return e
    }
    function c(e) {
        if (!j) {
            return
        }
        if (!e) {
            e = document.body
        }
        e.removeChild(j);
        j = null
    }
    var i = navigator.appVersion.indexOf("Edge/12") != -1 ? true : false;
    r = {
        isChrome: false,
        isFirefox: false,
        isIE: false,
        isSafari: false
    };
    if (window.chrome && !navigator.userAgent.match(/Opera|OPR\//)) {
        r.isChrome = true
    } else {
        if (typeof InstallTrigger !== "undefined") {
            r.isFirefox = true
        } else {
            if (i || "ActiveXObject"in window) {
                r.isIE = true
            } else {
                if (navigator.userAgent.match(/Safari\//)) {
                    r.isSafari = true
                }
            }
        }
    }
    if (navigator.msLaunchUri) {
        navigator.msLaunchUri(g, d, b)
    } else {
        if (r.isChrome || r.isSafari) {
            m = function() {
                window.clearTimeout(l);
                window.removeEventListener("blur", m);
                f(d)
            }
            ;
            h = function() {
                window.removeEventListener("blur", m);
                f(b)
            }
            ;
            window.addEventListener("blur", m);
            l = window.setTimeout(h, 1000);
            window.location.href = g
        } else {
            if (r.isFirefox) {
                j = p();
                try {
                    j.contentWindow.location.href = g;
                    f(d)
                } catch (q) {
                    if (q.name === "NS_ERROR_UNKNOWN_PROTOCOL") {
                        f(b)
                    } else {
                        f(o)
                    }
                } finally {
                    c()
                }
            } else {
                if (r.isIE) {
                    a = window.open("", "launcher", "width=0,height=0");
                    a.location.href = g;
                    try {
                        a.location.href = "about:blank";
                        f(d);
                        n = window.setInterval(function() {
                            a.close();
                            if (a.closed) {
                                window.clearInterval(n)
                            }
                        }, 500)
                    } catch (q) {
                        a = window.open("about:blank", "launcher");
                        a.close();
                        f(b)
                    }
                } else {
                    j = p();
                    j.contentWindow.location.href = g;
                    window.setTimeout(function() {
                        c(k);
                        f(o)
                    }, 1000)
                }
            }
        }
    }
}
var COOKIE = {
    set: function(g, b, d, c) {
        var a = new Date();
        var f;
        switch (c) {
        case "day":
            a.setDate(a.getDate() + d);
            break;
        case "hour":
            a.setTime(a.getTime() + (d * 60 * 60 * 1000));
            break;
        default:
            a.setDate(a.getDate() + d)
        }
        if (d) {
            f = escape(b) + "; expires=" + a.toGMTString()
        } else {
            f = escape(b)
        }
        document.cookie = g + "=" + f + "; path=/"
    },
    get: function(g) {
        var e = document.cookie.split(";");
        var d, c, f, b, a;
        b = e.length;
        for (d = 0; d < b; d++) {
            a = e[d].indexOf("=");
            c = e[d].substr(0, a);
            f = e[d].substr(a + 1);
            c = c.replace(/^\s+|\s+$/g, "");
            if (c == g) {
                return unescape(f)
            }
        }
    },
    del: function(a) {
        this.set(a, "", -1)
    }
};
var Base64 = {
    _keyStr: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
    encode: function(c) {
        var a = "";
        var k, h, f, j, g, e, d;
        var b = 0;
        c = Base64._utf8_encode(c);
        while (b < c.length) {
            k = c.charCodeAt(b++);
            h = c.charCodeAt(b++);
            f = c.charCodeAt(b++);
            j = k >> 2;
            g = ((k & 3) << 4) | (h >> 4);
            e = ((h & 15) << 2) | (f >> 6);
            d = f & 63;
            if (isNaN(h)) {
                e = d = 64
            } else {
                if (isNaN(f)) {
                    d = 64
                }
            }
            a = a + this._keyStr.charAt(j) + this._keyStr.charAt(g) + this._keyStr.charAt(e) + this._keyStr.charAt(d)
        }
        return a
    },
    decode: function(c) {
        var a = "";
        var k, h, f;
        var j, g, e, d;
        var b = 0;
        c = c.replace(/[^A-Za-z0-9\+\/\=]/g, "");
        while (b < c.length) {
            j = this._keyStr.indexOf(c.charAt(b++));
            g = this._keyStr.indexOf(c.charAt(b++));
            e = this._keyStr.indexOf(c.charAt(b++));
            d = this._keyStr.indexOf(c.charAt(b++));
            k = (j << 2) | (g >> 4);
            h = ((g & 15) << 4) | (e >> 2);
            f = ((e & 3) << 6) | d;
            a = a + String.fromCharCode(k);
            if (e != 64) {
                a = a + String.fromCharCode(h)
            }
            if (d != 64) {
                a = a + String.fromCharCode(f)
            }
        }
        a = Base64._utf8_decode(a);
        return a
    },
    _utf8_encode: function(b) {
        b = b.replace(/\r\n/g, "\n");
        var a = "";
        for (var e = 0; e < b.length; e++) {
            var d = b.charCodeAt(e);
            if (d < 128) {
                a += String.fromCharCode(d)
            } else {
                if ((d > 127) && (d < 2048)) {
                    a += String.fromCharCode((d >> 6) | 192);
                    a += String.fromCharCode((d & 63) | 128)
                } else {
                    a += String.fromCharCode((d >> 12) | 224);
                    a += String.fromCharCode(((d >> 6) & 63) | 128);
                    a += String.fromCharCode((d & 63) | 128)
                }
            }
        }
        return a
    },
    _utf8_decode: function(a) {
        var b = "";
        var d = 0;
        var e = c1 = c2 = 0;
        while (d < a.length) {
            e = a.charCodeAt(d);
            if (e < 128) {
                b += String.fromCharCode(e);
                d++
            } else {
                if ((e > 191) && (e < 224)) {
                    c2 = a.charCodeAt(d + 1);
                    b += String.fromCharCode(((e & 31) << 6) | (c2 & 63));
                    d += 2
                } else {
                    c2 = a.charCodeAt(d + 1);
                    c3 = a.charCodeAt(d + 2);
                    b += String.fromCharCode(((e & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
                    d += 3
                }
            }
        }
        return b
    }
};

上面的代码可以用来解码这个网址吗？若然，怎么做？

如果有人可以帮我解码，我会非常感激。