golang 模拟登陆微信公众平台，突破微信群发每日一条限制
思路：微信后台可以对指定用户进行回复，群发其实就是一个loop，so 模拟POST提交到微信 后台， 模拟登陆，即可突破群发每日一条限制。
直接上代码
/* *@author 菠菜君 *@Version 0.1 *@time 2013-10-30 *@go语言实现模拟登陆微信公众平台，突破微信群发每日一条限制 *@青岛程序员 微信订阅号qdprogrammer *@Golang 微信订阅号gostock *@关于青岛程序员的技术，创业，生活 分享。 *@开源 https://github.com/philsong/ */package mainimport ("crypto/md5""encoding/hex""encoding/json""fmt""io""io/ioutil""log""net/http""net/url""regexp""strings")type WebWeChat struct {token stringcookies []*http.Cookie}func NewWebWeChat() *WebWeChat {w := new(WebWeChat)return w}func (w *WebWeChat) login() bool {login_url := "https://mp.weixin.qq.com/cgi-bin/login?lang=zh_CN"email := "songbohr@163.com"password := "xxx"h := md5.New()h.Write([]byte(password))password = hex.EncodeToString(h.Sum(nil))fmt.Println(password)post_arg := url.Values{"username": {email}, "pwd": {password}, "imgcode": {""}, "f": {"json"}}fmt.Println(strings.NewReader(post_arg.Encode()))req, err := http.NewRequest("POST", login_url, strings.NewReader(post_arg.Encode()))req.Header.Set("Referer", "https://mp.weixin.qq.com/")if err != nil {log.Fatal(err)}client := new(http.Client)resp, _ := client.Do(req)data, _ := ioutil.ReadAll(resp.Body)s := string(data)fmt.Printf("%s", s)doc := json.NewDecoder(strings.NewReader(s))type Msg struct {Ret intErrMsg stringShowVerifyCode, ErrCode int}var m Msgif err := doc.Decode(&m); err == io.EOF {fmt.Println(err)} else if err != nil {log.Println(err)return false}fmt.Println(m)if m.ErrCode == 0 || m.ErrCode == 65201 || m.ErrCode == 65202 {w.token = strings.Split(m.ErrMsg, "=")[3]fmt.Printf("token:%v\n", w.token)w.cookies = resp.Cookies()fmt.Println(w.cookies)return true}switch m.ErrCode {case -1:fmt.Println("系统错误，请稍候再试。")case -2:fmt.Println("帐号或密码错误。")case -3:fmt.Println("您输入的帐号或者密码不正确，请重新输入。")case -4:fmt.Println("不存在该帐户。")case -5:fmt.Println("您目前处于访问受限状态。")case -6:fmt.Println("请输入图中的验证码")case -7:fmt.Println("此帐号已绑定私人微信号，不可用于公众平台登录。")case -8:fmt.Println("邮箱已存在。")case -32:fmt.Println("您输入的验证码不正确，请重新输入。")case -200:fmt.Println("因频繁提交虚假资料，该帐号被拒绝登录。")case -94:fmt.Println("请使用邮箱登陆。")case 10:fmt.Println("该公众会议号已经过期，无法再登录使用。")case -100:fmt.Println("海外帐号请在公众平台海外版登录,<a href=\"http://admin.wechat.com/\">点击登录</a>")default:fmt.Println("未知的返回。")}return false}func (w *WebWeChat) SendTextMsg(fakeid string, content string) bool {send_url := "http://mp.weixin.qq.com/cgi-bin/singlesend"referer_url := "https://mp.weixin.qq.com/cgi-bin/singlesendpage?t=message/send&action=index&tofakeid=%s&token=%s&lang=zh_CN"post_arg := url.Values{"tofakeid": {fakeid},"type": {"1"},"content": {content},"ajax": {"1"},"token": {w.token},"t": {"ajax-response"},}req, _ := http.NewRequest("POST", send_url, strings.NewReader(post_arg.Encode()))req.Header.Set("Referer", fmt.Sprintf(referer_url, fakeid, w.token))for i := range w.cookies {req.AddCookie(w.cookies[i])}client := new(http.Client)resp, _ := client.Do(req)data, _ := ioutil.ReadAll(resp.Body)doc := json.NewDecoder(strings.NewReader(string(data)))type Msg struct {Ret stringMsg string}var m Msgif err := doc.Decode(&m); err == io.EOF {fmt.Println(err)} else if err != nil {log.Fatal(err)}fmt.Println(m.Msg)if m.Msg == "ok" {return true}return false}func (w *WebWeChat) GetFakeId() bool {msg_url := "https://mp.weixin.qq.com/cgi-bin/contactmanage?t=user/index&pagesize=10&pageidx=0&type=0&groupid=0&token=%s&lang=zh_CN"referer_url := "https://mp.weixin.qq.com/cgi-bin/home?t=home/index&lang=zh_CN&token=%s"req, _ := http.NewRequest("GET", fmt.Sprintf(msg_url, w.token), nil)req.Header.Set("Referer", fmt.Sprintf(referer_url, w.token))for i := range w.cookies {req.AddCookie(w.cookies[i])}client := new(http.Client)resp, _ := client.Do(req)data, _ := ioutil.ReadAll(resp.Body)//fmt.Println(string(data))fmt.Println(string(data))re := regexp.MustCompile(`(?s)(?U)contacts.+contacts`)list := re.FindString(string(data))list = strings.Replace(list, `contacts`, "", -1)list = strings.Replace(list, `contacts`, "", -1)list = strings.Replace(list, ` `, " ", -1)fmt.Println(list)list = strings.TrimLeft(list, "\":")list = strings.TrimRight(list, "}).")fmt.Println(list)return true}func main() {wechat := NewWebWeChat()if wechat.login() == true {log.Println(wechat.GetFakeId())tofakeid := "333215495" //my fakeid for testwechat.SendTextMsg(tofakeid, "Hello Phil.")} else {fmt.Println("wechat login failed.")}}