weibo following backup

backup weibo following list.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         weibo following backup
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  backup weibo following list.
// @author       Raven1996
// @match        *://weibo.com/*
// @match        *://www.weibo.com/*
// @grant        GM_xmlhttpRequest
// ==/UserScript==

(function() {
    window.addEventListener("load", function(){
        setTimeout(setUI, 0);
    });

    function setUI() {
        var setting = document.getElementsByClassName("gn_topmenulist_set")[0].children[0];
        var li = document.createElement('li');
        var button = document.createElement('a');
        button.innerText = "备份关注";
        button.onclick = getFollowStart;
        li.append(button);
        setting.insertBefore(li, setting.children[8]);
    }

    function getFollowStart() {
        var urlBase = /[\w:\/.]+weibo.com\/p\/\d+/.exec(document.URL)
        || /[\w:\/.]+weibo.com\/[\w\d]+/.exec(document.URL);
        if (urlBase == null) return;
        urlBase = urlBase[0] + "/";
        var canceled = false;
        var numPage = 1, allPage = 0;
        var back = document.createElement('div');
        document.body.appendChild(back);
        back.style.cssText = "position:fixed; top:0; left:0; width:100%; height:100%; background:black; opacity:0.3; z-index:9999;"
        var layer = document.createElement('div');
        layer.className = "W_layer";
        layer.style.cssText = "width:240px; top:50%; left:50%; position:fixed; transform:translate(-50%, -50%);"
        layer.innerHTML = "<div class=\"content\" style=\"padding:16px; box-sizing:border-box;\">"
            + "<span class=\"txt\" style=\"display:inline-block; width:146px;\">获取关注中...</span>"
            + "<a class=\"W_btn_a\" href=\"javascript:void(0);\">取消</a></div>";
        layer.getElementsByTagName("a")[0].onclick = cancelThis;
        document.body.appendChild(layer);
        var followingList = "<html>\n<head><meta charset=\"UTF-8\"><title>Following List</title></head>\n<body>\n";
        GM_xmlhttpRequest({
            method: "GET",
            url: urlBase + "myfollow?t=1&cfs=&Pl_Official_RelationMyfollow__92_page=" + numPage,
            onload: function(response) {
                if (canceled) return;
                var pageHTML = getFollowHTML(response.responseText);
                if (pageHTML.getElementsByClassName("W_pages").length == 0) {
                    cancelThis();
                    return;
                }
                var children = pageHTML.getElementsByClassName("W_pages")[0].children;
                allPage = parseInt(children[children.length - 2].innerText);
                if (numPage <= allPage) {
                    followingList += getFollowing(pageHTML);
                    layer.getElementsByTagName("span")[0].innerText = "获取关注中...("+ Math.round(100.0*numPage/allPage) +"%)";
                    if (numPage < allPage) {
                        numPage++;
                        GM_xmlhttpRequest({
                            method: "GET",
                            url: urlBase + "myfollow?t=1&cfs=&Pl_Official_RelationMyfollow__92_page=" + numPage,
                            onload: nextPageFunction
                        });
                    }
                }
            }
        })

        function cancelThis() {
            canceled = true;
            document.body.removeChild(back);
            document.body.removeChild(layer);
            return false;
        }

        function nextPageFunction(response) {
            if (canceled) return;
            var pageHTML = getFollowHTML(response.responseText);
            followingList += getFollowing(pageHTML);
            layer.getElementsByTagName("span")[0].innerText = "获取关注中...("+ Math.round(100.0*numPage/allPage) +"%)";
            if (numPage < allPage){
                numPage++;
                GM_xmlhttpRequest({
                    method: "GET",
                    url: urlBase + "myfollow?t=1&cfs=&Pl_Official_RelationMyfollow__92_page=" + numPage,
                    onload: nextPageFunction
                });
            }
            else if (numPage == allPage) {
                followingList += "</body>\n</html>";
                var blob = new Blob([followingList], {type: "text/plain"});
                var link = document.createElement("a");
                link.href = URL.createObjectURL(blob);
                link.download = 'Following List.html'
                link.click();
                cancelThis();
            }
        }
    }

    function getFollowing(pageHTML) {
        var list = "";
        var menbers = pageHTML.getElementsByClassName('member_li');
        for (var index = 0; index < menbers.length; index++) {
            var text = menbers[index].getAttribute("action-data");
            text = text.split("&")
            var name, uid;
            for(var i = 0; i < text.length; i++) {
                var attr = text[i].substr(0, text[i].indexOf("="));
                if (attr == "uid") {
                    uid = text[i].substr(text[i].indexOf("=") + 1);
                }
                else if (attr == "screen_name") {
                    name = text[i].substr(text[i].indexOf("=") + 1);
                }
            }
            var userLink = "https://weibo.com/" + uid;
            list += "<p>"+ name + " <a href=\"" + userLink + "\" target=\"_blank\">" + userLink +"</a></p>\n";
        }
        return list;
    }

    function getFollowHTML(originText) {
        var pageHTML = new DOMParser().parseFromString(originText, "text/html");
        var scripts = pageHTML.getElementsByTagName('script');
        var text;
        for (var index = 0; index < scripts.length; index++) {
            text = scripts[index].innerText;
            if (text.slice(27, 35) == "myFollow"){
                break;
            }
        }
        text = text.slice(text.indexOf("\"html\"") + 8, -3);
        text = text.replace(/\\r\\n/g, "\n");
        text = text.replace(/\\t/g, "\t");
        text = text.replace(/\\([\/\\"'])/g, "$1");
        return new DOMParser().parseFromString(text, "text/html");
    }
})();