PHp + socket编程练习——博客园回复

因为也是学习的路上，先画出思路，代码和看别人的学习的，最后是根据的思路完成的，可能比较简单，后期在去完善和更改

<?php
/**
 * php+socket 编程 发送HTTP请求
 * @version  c.php
 * 模拟博客园评论
 */
interface Proto{
	// 连接url
	public function conn($url);
	// 发送get请求
	public function get();
	// 发送post请求
	public function post($body);
	//关闭连接
    public function close();
}
class Http implements Proto{
	protected $response = ‘‘;
	protected $fh=null;
	protected $errno = -1;
	protected $errorstr = ‘‘;

	protected $line = array();
	protected $header = array();
	protected $body = array();
	public $url = array();

	public function __construct($url){
		$this->conn($url);
		$this->setHeader(‘Host: ‘ . $this->url[‘host‘]);
	}
	// 请求行
	protected function setLine($method){
		$this->line[0] = $method . ‘ ‘ . $this->url[‘path‘] .  ‘ ‘ . ‘HTTP/1.1‘;
	}
	// 头信息
	public function setHeader($headerline){
		$this->header[] = $headerline;
	}
	// 主体信息
	protected function setBody($body){
                $this->body[] = http_build_query($body);
	}
	// 连接url
	public function conn($url){
		$this->url = parse_url($url);
		if(!isset($this->url[‘port‘])){
			$this->url[‘port‘] = 80;
		}
		$this->fh = fsockopen($this->url[‘host‘],$this->url[‘port‘],$this->errno,$this->errorstr,3);
	}
	// 构建get请求
	public function get(){
		$this->setLine(‘GET‘);
		$this->request();
		return $this->response;
	}
	// 发送post请求
	public function post($bo){
		$this->setLine(‘POST‘);
                // content-type
                $this->setHeader("Content-type: application/x-www-form-urlencoded");

                $this->setBody($bo);
                // content-length
                $this->setHeader("Content-length: " .strlen($this->body[0]));
                $this->request();
                return $this->response;
	}
	public function request(){
		$req = array_merge($this->line,$this->header,array(‘‘),$this->body,array(‘‘));
		//print_r($req);die;
		$req = implode(PHP_EOL,$req); // PHP_EOL 换行
//		echo $req;die;
		fwrite($this->fh,$req);
		while(!feof($this->fh)){
			$this->response .= fread($this->fh,1024);
		}
		$this->close();
	}
	public function close(){
            fclose($this->fh);
	}
}

上面是简单的类

<?php

require("./c.php"); // 引入上面的类
$url = "http://www.cnblogs.com/mvc/PostComment/Add.aspx";
$http = new Http($url);
$http->setHeader("Cookie:xxxx");
$http->setHeader("Referer: http://www.cnblogs.com/geek12/p/4024793.html");
$http->setHeader("User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0");

$msg =array(
"blogApp"=>"geek12",
"body"=>"来自robot",
"parentCommentId"=>0,
"postId"=>4024793);

$http->post($msg);

发送成功的截图

在写的过程中遇到的几个问题，根据请求的url 不一样，请求头的拼接也需要改变，这里请求的url是 http://www.cnblogs.com/mvc/PostComment/Add.aspx  静态的连接，所有path 直接拿到后面的，如果是动态的就需要修改了，所以本方法只适合静态的连接，动态的需要修改请求头

不是所有的网站都可以模拟，虽然没有验证码，我在VeryCd 网站，怎么模拟都没有成功，最后只好放弃了

我是菜鸟，请不要抨击，待续。。。。