// ==UserScript==
// @name         隐心百度云盘钥匙
// @namespace    http://tampermonkey.net/
// @version      1.5
// @description  百度云盘钥匙，主要功能有：1、打开百度云盘链接地址时，会自动获取提取码填入，并会自动提交，一键打开分享链接，方便快捷；2、浏览任何网页时，只要包含百度云盘分享链接，都会在页面左上角显示链接是否有效，如果有效则会显示提取码。
// @author       Yisin
// @match        *://pan.baidu.com/*
// @match        *://*/*
// @require      https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.0/jquery.min.js
// @grant        GM_xmlhttpRequest
// @grant        GM_openInTab
// @connect      meek.com.cn
// @connect      ip.cn
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';
    var isBDY = false;
    var URL_STORE = {};

    function getLocationKey(){
        var key = "";
        var url = document.location.href;
        if(url.indexOf('//pan.baidu.com/s/') != -1){
           key = document.location.pathname.substring(4);
        } else if(url.indexOf('//pan.baidu.com/share/init') != -1){
           key = getUrlParam(null, "surl");
        }
        if(/^1[^\s]+/g.test(key)){
            key = key.substring(1);
        }
        return key;
    }

    function getUrlKey(url){
        var key = "";
        if(url.indexOf('//pan.baidu.com/s/') != -1){
           key = url.substring(url.indexOf('//pan.baidu.com/s/') + 18);
        } else if(url.indexOf('//pan.baidu.com/share/init') != -1){
           key = getUrlParam(url, "surl");
        }
        if(/^1[^\s]+/g.test(key)){
            key = key.substring(1);
        }
        return key;
    }

    function getUrlParam(u, param) {
        var url = u || location.href;
        var reg = new RegExp("(" + param + ")=([^&#]*)", "g"),
            matched = url.match(reg);

        return matched && matched[0] ? matched[0].replace(param + "=", "") : null;
    }

    function LoadPass(bdyKey, callback){
        var bdyUrl = 'https://pan.baidu.com/s/' + bdyKey;
        var bdyPass = "";
        if(window.localStorage){
            bdyPass = localStorage.getItem(bdyUrl);
        }
        if(bdyPass && bdyPass.length == 4){
            console.info(bdyUrl,"->",bdyPass);
            if(callback){
                callback(bdyPass);
            }
            if(isBDY){
                $('.verify-input input').val(bdyPass);
                $('.g-button.g-button-blue-large').click();
            }
        } else {
            var weburl = 'http://ypsuperkey.meek.com.cn/api/items/BDY-' + bdyKey + '?access_key=4fxNbkKKJX2pAm3b8AEu2zT5d2MbqGbD&client_version=web-client&' + new Date().getTime();
            GM_xmlhttpRequest({
                method: 'GET',
                url: weburl,
                headers: {"Accept": "application/json"},
                contentType: "application/json",
                dataType: 'json',
                onload: function(response){
                    if(response.statusText == 'OK'){
                        try{
                            var res = JSON.parse(response.responseText);
                            bdyPass = res.access_code;
                            console.info(bdyUrl,"->",bdyPass);
                            if(bdyPass && bdyPass.length == 4){
                                if(window.localStorage){
                                    localStorage.setItem(bdyUrl, bdyPass);
                                }
                                if(isBDY){
                                    $('.verify-input input').val(bdyPass);
                                    $('.g-button.g-button-blue-large').click();
                                    return;
                                }
                            }
                            if(callback){
                                callback(bdyPass);
                            } else {
                                autoGet(bdyUrl);
                            }
                        }catch(e){}
                    } else if(callback){
                        callback(bdyPass);
                    } else {
                        autoGet(bdyUrl);
                    }
                }
            });
        }
    }

    function CheckUrl(weburl, callback){
        GM_xmlhttpRequest({
            method: 'GET',
            url: weburl,
            contentType: "text/html",
            onload: function(response){
                if(response.statusText == 'OK' && response.responseText){
                   if(/<title>百度网盘-链接不存在<\/title>/g.test(response.responseText) || />啊哦，邀请链接已失效/g.test(response.responseText)){
                       callback(false);
                   } else {
                       callback(true);
                   }
                } else {
                    callback(false);
                }
            }
        });
    }

    function ShowBDYPass(url, pass){
        if(URL_STORE[url]){
            return;
        }
        pass = pass || "";
        URL_STORE[url] = pass;
        var $div = $('#__BDY-DIV-BOX');
        var $list = {};
        var $box = {};
        var $btn = {};
        if(!$div.length){
            $div = $('<div id="__BDY-DIV-BOX"><div class="____list"></div><div class="____btnbox"><div class="____btn" style="width:22px;height:22px;line-height:20px;text-align:center;border:1px solid #dddddd;background:#ffffff;cursor:pointer;" title="关闭窗口">X</div></div></div>');
            $('html').append($div);
            $list = $div.find('.____list');
            $box = $div.find('.____btnbox');
            $btn = $div.find('.____btnbox .____btn');
            $div.css({
                "position": "fixed",
                "width": "510px",
                "height": "23px",
                "overflow": "hidden",
                "font-size": "13px",
                "top": 0,
                "left": '-490px',
                "border": "2px solid #5555ff",
                "background": "#f0f0f0",
                "color": "#5555ff",
                "z-index": 9999999,
                "opacity": '0.5'
            });
            $list.css({
                "width": "450px",
                "height": "auto",
                "padding": "10px",
                "float": 'left'
            });
            $box.css({
                "width": "23px",
                "height": "auto",
                "padding": "0",
                "float": 'right'
            });
            $div.hover(function(){
                $div.css({
                    'left': 0,
                    "height": "100px",
                    "overflow": "auto",
                    "opacity": '1'
                });
                $box.css({
                    "float": 'left',
                    "margin-top": "2px"
                });
            }, function(){
                $div.css({
                    'left': "-490px",
                    "height": "23px",
                    "overflow": "hidden",
                    "opacity": '0.5'
                });
                $box.css({
                    "float": 'right',
                    "margin-top": 0
                });
            });
            $btn.hover(function(){
                $btn.css({
                    "background": '#eeeeee',
                    "border": '1px solid #ddcccc',
                    "color": "#ff0000"
                });
            }, function(){
                $btn.css({
                    "background": '#ffffff',
                    "border": '1px solid #dddddd',
                    "color": "#000000"
                });
            });
            $btn.on('click', function(){
                $div.hide();
            });
        } else {
            $list = $div.find('.____list');
            $box = $div.find('.____btnbox');
            $btn = $div.find('.____btnbox button');
        }
        var color = '#000000';
        if(pass == '链接已失效'){
            pass = '，' + pass;
            color = '#ff0000';
        } else if(pass){
            pass = '，提取码：' + pass;
            color = '#55aa55';
        }
        $list.append('<div style="line-height:18px;"><a href="'+url+'" target="_blank" style="color:'+color+'">' + url + '</a>' + pass + '</div>');

        autoGet(url);
    }

    function autoGet(url){
        if(isBDY){
            $('.verify-input input').on('blur', function(){
                var code = $(this).val();
                if(code && code.length == 4){
                   if(window.localStorage){
                       localStorage.setItem(url, code);
                   }
                }
            });
        }
    }

    function BaiduPan(url){
        this.url = url;
        this.code = '';
        this.CK_DATA = {};
    }

    BaiduPan.prototype = {
        load: function(){
            var that = this;
            var bdyKey = getUrlKey(that.url);
            if(bdyKey){
                var res = that.CK_DATA[that.url];
                if(res){
                   if(res.suc){
                       LoadPass(bdyKey, function(pass){
                           ShowBDYPass(that.url, pass);
                       });
                   } else {
                       ShowBDYPass(that.url, "链接已失效");
                   }
                } else {
                    CheckUrl(that.url, function(suc){
                        if(suc){
                            that.CK_DATA[that.url] = {"suc": true};
                            LoadPass(bdyKey, function(pass){
                                ShowBDYPass(that.url, pass);
                            });
                        } else {
                            that.CK_DATA[that.url] = {"suc": false};
                            ShowBDYPass(that.url, "链接已失效");
                        }
                    });
                }
            }
        }
    };

    if(/^(http|https):\/\/pan.baidu.com\//g.test(document.location.href)){
        isBDY = true;
        var bdyKey = getLocationKey();
        if(bdyKey){
             LoadPass(bdyKey);
        }
    } else {
        var html = $('body').html();
        if(html){
            var arrs = html.match(/(http|https):\/\/pan.baidu.com\/s\/[a-zA-Z0-9_-]+/g);
            if(arrs && arrs.length){
                var index = 0;
                for(var i = 0; i < arrs.length; i++){
                    new BaiduPan(arrs[i]).load();
                }
            }
        }
    }
})();