[Web]网址净化方法

javascript: (function () {
    function getQueryString(name) {
        var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
        var r = window.location.search.substr(1).match(reg);
        if (r != null) return r[2];
        return null;
    }
    var site = window.location.href.match(/^http(s)?:\/\/[^?]*/);
    var id = getQueryString("id");
    var q = getQueryString("q");
    if (id != null) {
        var pureUrl = site[0] + "?id=" + id;
    } else if (q != null) {
        var pureUrl = site[0] + "?q=" + q;
    } else if (site[0].substr(site[0].length - 13) == "view_shop.htm") {
        var pureUrl = window.location.protocol + "//" + window.location.host;
    } else {
        var pureUrl = site[0];
    }
    /* Apple Store 将国家设置为中国 Start */
    pureUrl = pureUrl.replace(/^http(s)?:\/\/itunes\.apple\.com\/(\w{2}\/)?/,"https://itunes.apple.com/cn/");
    /* Apple Store 将国家设置为中国 End */
    var reload = prompt("净化后的网址是：",pureUrl);
    if(reload != null){
        window.location.href = pureUrl;
    }
})();