检测浏览器的版本

根据浏览器的不同版本做不同的跳转策略

function mobilecheck() {
    var check = false;
    (function(a) {
        if (/(android|ipad|playbook|silk|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(a) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0, 4)))
            check = true
    }
    )(navigator.userAgent || navigator.vendor || window.opera);
    return check;
}
var getReferFrom = function() {
    var domainMatches = [{
        test: /163\.com$/i,
        domain: '163'
    }, {
        test: /baidu\.com$/i,
        domain: 'baidu'
    }, {
        test: /sm\.cn$/i,
        domain: 'sm'
    }, {
        test: /sogou\.com$/i,
        domain: 'sogou'
    }, {
        test: /so\.com$/i,
        domain: '360'
    }, {
        test: /google/i,
        domain: 'google'
    }, {
        test: /bing/i,
        domain: 'bing'
    }, {
        test: /weibo/i,
        domain: 'weibo'
    }, {
        test: /toutiao/i,
        domain: 'toutiao'
    }];
    var referrer = document.referrer
    var referDomain = ''
    var currentPageRefer = '';
    if (referrer) {
        var urlRegexp = /^([hH][tT]{2}[pP]:\/\/|[hH][tT]{2}[pP][sS]:\/\/)([^\/]+).*?/
        var urlMatch = referrer.match(urlRegexp)
        referDomain = urlMatch && urlMatch[2] ? urlMatch[2] : referDomain
    }
    if (referDomain) {
        currentPageRefer = referDomain
        for (var i = 0, item; i < domainMatches.length; i++) {
            item = domainMatches[i]
            if (item.test.test(referDomain)) {
                currentPageRefer = item.domain;
                break;
            }
        }
    }
    return currentPageRefer
}

var matches = /\/article\/([A-Z0-9]{16})\.html/.exec(window.location.pathname) || ['', '']
var docid = matches[1]

if (mobilecheck() && docid) {
    window.location.href = 'https://3g.163.com/news/article/' + docid + '.html?referFrom=' + getReferFrom() + '&spss=adap_dy';
    // if (getReferFrom() === "baidu" || navigator.userAgent.toLowerCase().indexOf("baidu") > 0) {
    //   window.location.href = 'https://3g.163.com/news/article/'+docid+'.html?referFrom=' + getReferFrom() + '&spss=adap_dy';
    // } else {
    //   window.location.href = 'https://c.m.163.com/news/a/'+docid+'.html?referFrom=' + getReferFrom() + '&spss=adap_dy';
    // }
}

// http 跳转 https
var targetProtocol = 'https:'
if (window.location.protocol != targetProtocol) {
    var host = window.location.host
    var pathname = window.location.pathname
    var search = window.location.search
    var hash = window.location.hash
    if (host === 'dy.163.com') {
        //TODO: 先过滤参数,防止重复添加参数
        var filterSearch = function(search, filterParams) {
            if (search) {
                var searchArr = search.substr(1).split('&')
                if (searchArr.length > 0) {
                    var newParams = []
                    for (var i = 0, len = searchArr.length; i < len; i++) {
                        var param = searchArr[i]
                        if (filterParams.indexOf(param.split('=')[0]) === -1) {
                            newParams.push(param)
                        }
                    }
                    search = '?' + newParams.join('&')
                }
            }
            return search;
        }
        search = filterSearch(search, ['referFrom', 'isFromOtherWeb']);
        if (search) {
            search = search + (search.length === 1 ? '' : '&') + 'referFrom=' + getReferFrom();
        } else {
            search = '?referFrom=' + getReferFrom();
        }
        var targetHref = targetProtocol + '//' + host + pathname + search + hash;
        console.log(targetHref);
        window.location.replace(targetHref);
    }
}