php模拟微信公众平台之我见

近期在研究微信公众平台的相关内容，介于网上资料不是很充足，本人使用PHP整理了一下，下面贴出具体的代码，有不足希望大神给予补充，小弟不甚感激。目前只实现给指定的fakeid发送消息，更多的功能希望大家一起补充。
1. 请求的http.php

<?php
class http {
    private static $instance = NULL;//实例对象
    private $host;//地址
    private $port = 80;//端口号
    private $fp = NULL;//socket链接资源
    private $timeout = 120;//socket请求超时时间(s)   
    private $header = array();//请求头部信息
    private $httpVer = 'HTTP/1.0';//请求标准
    private $crlf = "\r\n";//请求分隔符
    private $accept = "*/*";
    private $agent = 'Mozilla/5.0 (Windows NT 6.1; rv:20.0) Gecko/20100101 Firefox/20.0';//伪装浏览器
    private $maxLineLength = 4096;//最大行数长度
    private $maxLength = 1024;//最大数据长度
    private $resultHeader;//返回头部
    private $resultData;//返回内容
    
    /**
     * 获取实例单例
     * @return object 
     */
    public static function getInstance() {
        if (is_null(self::$instance)) {
            self::$instance = new http();
        }
        return self::$instance;
    }
    
    /**
     * 隐藏构造函数
     */
    private function __construct() {        
    }
    
    /**
     * 设置请求头部信息
     * @param array $header 请求头部信息数组 
     */
    public function setHeader($header) {
        $this->header = $header;
    }
    
    /**
     * 发送请求
     * @param string $url   请求链接
     * @param array $data   post请求数据 
     * @param string $method    请求方法post/get     
     */
    public function sendRequest($url, $data=array(), $method='post') {
        $urlArr = parse_url($url);
        if (isset($urlArr['port'])) {
            $this->port = $urlArr['port'];
        }
        switch (strtolower($urlArr['scheme'])) {
            case 'http':
                $this->host = $urlArr['host'];
                break;
            case 'https':
                $this->host = 'ssl://' . $urlArr['host'];
                $this->port = 443;
                break;
            default:
                echo "Error: wrong url!";
                exit;
                break;
        }
        $this->connect();
        if (strtolower($method) == 'post') {
            $method = 'POST';
        } else {
            $method = 'GET';
        }
        $path = isset($urlArr['path']) ? $urlArr['path'] : '/';
        if (isset($urlArr['query'])) {
            $path .= '?' . $urlArr['query'];
        }
        $httpVer = isset($this->header['httpVer']) ? $this->header['httpVer'] : $this->httpVer;
        $headerStr = "{$method} {$path} {$httpVer}{$this->crlf}";
        $host = isset($urlArr['port']) ? $urlArr['host'] . ':' . $urlArr['port'] : $urlArr['host'];
        $headerStr .= "Host: {$host}{$this->crlf}";
        $accept = isset($this->header['Accept']) ? $this->header['Accept'] : $this->accept;
        $headerStr .= "Accept: {$accept}{$this->crlf}";
        if (isset($this->header['Referer'])) {
            $headerStr .= "Referer: {$this->header['Referer']}{$this->crlf}";
        }
        $agent = isset($this->header['User-Agent']) ? $this->header['User-Agent'] : $this->agent;
        $headerStr .= "User-Agent: {$agent}{$this->crlf}";
        if (isset($this->header['Cookie'])) {
            $headerStr .= "Cookie: {$this->header['Cookie']}{$this->crlf}";
        }
        $dataLength = 0;
        if ($method == 'POST') {            
            if (!empty($data)) {
                $dataStr = http_build_query($data);
                $dataLength = strlen($dataStr);
            }            
            $headerStr .= "Content-Type: application/x-www-form-urlencoded{$this->crlf}";
            $headerStr .= "Cache-Control: no-cache{$this->crlf}";
            $headerStr .= "Pragma: no-cache{$this->crlf}";
            $headerStr .= "Content-Length: {$dataLength}{$this->crlf}";
        }
        $headerStr .= $this->crlf;
        if ($dataLength > 0) {
            $headerStr .= $dataStr;
        }
        fwrite($this->fp, $headerStr, strlen($headerStr));
        $this->resultHeader = '';
        while ($curContent = fgets($this->fp, $this->maxLineLength)) {
            if ($curContent == $this->crlf) {
                break;
            }
            $this->resultHeader .= $curContent;
        }
        $this->resultData = '';
        do {
            $curContent = fread($this->fp, $this->maxLength);
            if (strlen($curContent) == 0) {
                break;
            }
            $this->resultData .= $curContent;
        } while(TRUE);
        $this->disconnect();
        unset($this->fp);
    }
    
    /**
     * 获取返回的头部信息
     * @return string 
     */
    public function getResultHeader() {
        return $this->resultHeader;
    }
    
    /**
     * 获取返回的数据信息
     * @return string 
     */
    public function getResultData() {
        return $this->resultData;
    }
    
    /**
     * 发起请求
     */
    private function connect() {
        $this->fp = fsockopen($this->host, $this->port, $errno, $errstr, $this->timeout);
        if (!$this->fp) {
            echo "Error: {$errno}--{$errstr}";
            exit;
        }
    }
    
    /**
     * 结束请求
     */
    private function disconnect() {
        return fclose($this->fp);
    }
}

?>

<?php
include './http.php';
// 微信公众账号 
$user = "xxxxxxxx";
// 微信公众号登陆密码  MD5加密
$pass = md5(substr('*******', 0, 16));

$obj = new test($user, $pass);
$obj->sendTextMsg(123456, '你好！');

class test {
    private $http;//请求实例
    private $cookieLog = 'cookie.log';//cookie的保存文件
    private $tokenLog = 'token.log';//token的保存文件
    private $user;//用户名
    private $pass;//密码
    
    /**
     * 构造函数
     * @param string $user  用户名
     * @param string $pass  密码
     */
    public function __construct($user, $pass) {
        $this->http = http::getInstance();
        $this->user = $user;
        $this->pass = $pass;
    }

    /**
     * 模拟登陆
     */ 
    private function login() {
        $url = "https://mp.weixin.qq.com/cgi-bin/login?lang=zh_CN";
        $post = array();
        $post["username"] = $this->user;
        $post["pwd"] = $this->pass;
        $post["imgcode"] = '';
        $post["f"] = "json";
        $this->http->sendRequest($url, $post);
        $data = json_decode($this->http->getResultData(), TRUE);
        if (!(isset($data['ErrCode']) && $data['ErrCode'] == 0)) {
            echo "登陆失败";
            exit;
        }
        $arr = parse_url($data['ErrMsg']);
        $qarr = explode('&', $arr['query']);
        $token = '';
        foreach ($qarr as $k=>$v) {
            $karr = explode("=", $v);
            if ($karr[0] == 'token') {
                $token = $karr[1];
            }
        }
        $this->write($this->tokenLog, $token);
        $cookie = '';
        if (preg_match_all("/set\-cookie: (.*) path/i", $this->http->getResultHeader(), $matches)) {
            if (isset ($matches[1])) {
                foreach ($matches[1] as $k=>$v) {
                    $cookie .= $v;
                }
            }            
        }
        $this->write($this->cookieLog, $cookie);
    }

    /**
     * 指定好友发送消息
     * @param int $fakeId   fakeid
     * @param string $content   消息内容
     */
    public function sendTextMsg($fakeId, $content) {
        $this->checkLogin();
        $cookie = $this->read($this->cookieLog);
        $token = $this->read($this->tokenLog);
        $header = array();
        $header['Referer'] = "https://mp.weixin.qq.com/cgi-bin/singlemsgpage?token={$token}&fromfakeid={$fakeId}&msgid=&source=&count=20&t=wxm-singlechat&lang=zh_CN";
        $header['Cookie'] = $cookie;
        $this->http->setHeader($header);
        $post = array();
        $post['token'] = $token;
        $post['tofakeid'] = $fakeId;
        $post['type'] = 1;
        $post['content'] = $content;
        $post['ajax'] = 1;
        $post['error'] = 'false';
        $url = "https://mp.weixin.qq.com/cgi-bin/singlesend?t=ajax-response&lang=zh_CN";
        $this->http->sendRequest($url, $post);
        $data = json_decode($this->http->getResultData(), TRUE);
        if (isset($data['ret']) && $data['ret'] == 0) {
            echo '发送成功';
        } else {
            echo '发送失败';
        }
    }
    
    /**
     * 写文件
     * @param string $filename  文件名
     * @param string $content   内容
     */
    private function write($filename, $content) {
        $fp = fopen($filename, 'w');
        fwrite($fp, $content);
        fclose($fp);
    }
    
    /**
     * 读取文件内容
     * @param string $filename
     * @return string 
     */
    private function read($filename) {
        $data = '';
        if (file_exists($filename)) {
            $fp = fopen($filename, 'r');
            $data = fread($fp, filesize($filename));
            fclose($fp);            
        }
        return $data;
    }

    /**
     * 校验登陆
     * @return boolean true 
     */
    private function checkLogin() {
        $cookie = $this->read($this->cookieLog);
        $token = $this->read($this->tokenLog);
        $post = array();
        $post['token'] = $token;
        $post['ajax'] = 1;
        $url = 'https://mp.weixin.qq.com/cgi-bin/getnewmsgnum?t=ajax-getmsgnum&lastmsgid=100002402';
        $header['Referer'] = "https://mp.weixin.qq.com/cgi-bin/getmessage?t=wxm-message&token={$token}&lang=zh_CN&count=50"; //伪装来源页地址 http_referer   
        $header['Cookie'] = $cookie;
        $this->http->setHeader($header);
        $this->http->sendRequest($url, $post);
        $data = json_decode($this->http->getResultData(), TRUE);
        if (!(isset($data['ret']) && $data['ret'] == 0)) {
            $this->login();
        }
        return TRUE;
    }

}

?>