使用php的curl类，检测socket5代理服务器可用性

设计初衷当然是用php curl bind不一个sokcet5去访问一个随机页面（公网）这个页面的功能就是通过一个md5来验证sokcet5服务器是否真的可用
A服务器通过 socket5发出http://xxxx/a.php?t=randkey
B服务器，echo md5($_GET['t'] . mykey);

A服务器拿到content以后也用相同算法算一个$resut看看是不是等于B服务器的echo值，如果一样，就是success 不一样就是failed

第一个文件curl.inc.php

<?phpclass CurlRequest {private $ch = 0;/** * Init curl session * * $params = array('url' => "", *                    'host' => "", *                   'header' => "", *                   'method' => "", *                   'referer' => "", *                   'cookie' => "", *                   'post_fields' => "", *                    ['login' => '',] *                    ['password' => '',] *                   'timeout' => 0 *                   ); */public function init($params) {if ($this->ch == 0)$this->ch = curl_init();$user_agent = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.8.0.9) Gecko/20061206 Firefox/1.5.0.9';$header = array("Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5","Accept-Language: ru-ru,ru;q=0.7,en-us;q=0.5,en;q=0.3","Accept-Charset: windows-1251,utf-8;q=0.7,*;q=0.7","Keep-Alive: 300");if (isset($params['host']) && $params['host'])$header[] = "Host: " . $params['host'];if (isset($params['header']) && $params['header'])$header[] = $params['header'];@curl_setopt($this->ch, CURLOPT_RETURNTRANSFER, 1);@curl_setopt($this->ch, CURLOPT_VERBOSE, 1);@curl_setopt($this->ch, CURLOPT_HEADER, 1);if (strlen($params['proxy']) > 0)curl_setopt($this->ch, CURLOPT_PROXY, $params['proxy']);if (strlen($params['proxyport']) > 0)curl_setopt($this->ch, CURLOPT_PROXYPORT, $params['proxyprot']);curl_setopt($this->ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5);if ($params['method'] == "HEAD")@curl_setopt($this->ch, CURLOPT_NOBODY, 1);@curl_setopt($this->ch, CURLOPT_FOLLOWLOCATION, 1);@curl_setopt($this->ch, CURLOPT_HTTPHEADER, $header);if ($params['referer'])@curl_setopt($this->ch, CURLOPT_REFERER, $params['referer']);@curl_setopt($this->ch, CURLOPT_USERAGENT, $user_agent);if ($params['cookie'])@curl_setopt($this->ch, CURLOPT_COOKIE, $params['cookie']);if ($params['method'] == "POST") {curl_setopt($this->ch, CURLOPT_POST, true);curl_setopt($this->ch, CURLOPT_POSTFIELDS, $params['post_fields']);}@curl_setopt($this->ch, CURLOPT_URL, $params['url']);@curl_setopt($this->ch, CURLOPT_SSL_VERIFYPEER, 0);@curl_setopt($this->ch, CURLOPT_SSL_VERIFYHOST, 0);if (isset($params['login']) & isset($params['password']))@curl_setopt($this->ch, CURLOPT_USERPWD, $params['login'] . ':' . $params['password']);@curl_setopt($this->ch, CURLOPT_TIMEOUT, $params['timeout']);}/** * Make curl request * * @return array  'header','body','curl_error','http_code','last_url' */public function exec() {$response = curl_exec($this->ch);$error = curl_error($this->ch);$result = array('header' => "",'body' => "",'curl_error' => "",'http_code' => "",'last_url' => "");if ($error != "") {$result['curl_error'] = $error;return $result;}$header_size = curl_getinfo($this->ch, CURLINFO_HEADER_SIZE);$result['header'] = $this->pass_header(substr($response, 0, $header_size));$result['body'] = substr($response, $header_size);$result['http_code'] = curl_getinfo($this->ch, CURLINFO_HTTP_CODE);$result['last_url'] = curl_getinfo($this->ch, CURLINFO_EFFECTIVE_URL);$result['last_sent'] = curl_getinfo($this->ch, CURLINFO_HEADER_OUT);return $result;}function __destruct() {@curl_close($this->ch);}public function pass_header($header) {$result = array();$varHader = explode("\r\n", $header);if (count($varHader) > 0) {for ($i = 0; $i < count($varHader); $i++) {$varresult = explode(":", $varHader[$i]);if (is_array($varresult) && isset($varresult[1]))$result[$varresult[0]] = $varresult[1];}}return $result;}}?>

第二个文件

<?phpinclude 'curl.inc.php';$GLOBALS['curl'] = new CurlRequest;function verify($proxy, $prot) {$key = rand('1000000', '9999999');$params = array('url' => "http://xxxxx.com/a.php?md=$key", //自己找个服务器放个程序！'host' => 'help.dhgate.com','proxy' => "$proxy:$prot",'proxyport' => "$prot",'timeout' => 10);$GLOBALS['curl']->init($params);$result = $GLOBALS['curl']->exec();if (trim($result['body']) == md5($key . 'my'))return true;elsereturn false;}echo verify('localhost', '7777');?>

目标服务器的那个程序。。。

<?phpecho md5($_GET['md'] . 'my');?>

verify 函数返回的true false标志socket5服务器是否可用！
curl_setopt($this->ch,CURLOPT_PROXYTYPE,CURLPROXY_SOCKS5); 这行话，是专门给socket5用的你要验证http proxy的也一样，删了这行就行了！