、实现SMTP协议的类dsmtp.cls.php：<?php
// 通过socket实现SMTP协议的功能
// version: 1.1
// author : DCC
// create : 2014-01-17 23:38:24
// modify : 2014-01-18 16:59:04
// more : http://www.thinkful.cn/archives/389.html
class Dmail_smtp{
var $socket;
var $host;
var $user;
var $pwd;
var $port;
var $nickname;
var $weburl;
// 初始化
function__construct($host, $user, $pwd, $port=, $webname='大超超在思考', $weburl="www.thinkful.cn"){
$this->socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
$this->host = $host;
$this->user = $user;
$this->pwd = $pwd;
$this->port = $port;
$this->nickname = $webname;
$this->weburl = $weburl;
}
// 发邮件
function smtp($to, $from, $subject, $body){
$conn = socket_connect($this->socket, $this->host, $this->port);
if( $conn ){
// 接收连接成功的消息
$msg = "succeed connect to ".$this->host.":".$this->port."\n";
$msg .= $this->_r();
// 开始认证过程
$this->_w("HELO ".$this->weburl."\r\n");
$msg .= $this->_r();
$this->_w("AUTH LOGIN ".base64_encode($this->user)."\r\n");
$msg .= $this->_r();
$this->_w(base64_encode($this->pwd)."\r\n");
$msg .= $this->_r();
// 认证成功
if( stripos($msg, '235 Authentication successful')!==FALSE ){
$this->_w("MAIL FROM:<{$from}>\r\n");
$msg .= $this->_r();
$this->_w("RCPT TO:<{$to}>\r\n");
$msg .= $this->_r();
$this->_w("DATA\r\n");
$msg .= $this->_r();
// 发送头和正文
$data = $this->_genHeader($to, $from, $subject)
."\r\n".$this->_genBody($body);
$this->_w($data);
$this->_w("\r\n.\r\n");
$msg .= $this->_r();
$this->_w("QUIT\r\n");
$msg .= $this->_r();
}
}
return $msg;
}
// 生成头部
private function _genHeader($to, $from, $subject){
$header = "MIME-Version:1.0\r\n";
$header .= "Content-Type: text/plain; charset=\"utf-8\"\r\n";
$header .= "Subject: =?utf-8?B?".base64_encode($subject)."?=\r\n";
$header .= "From: ".$this->nickname." <".$from.">\r\n";
$header .= "To: ".$to."\r\n";
$header .= "Date: ".date("r")."\r\n";
list($msec, $sec) = explode(" ", microtime());
$header .= "Message-ID: <DCC_".date("YmdHis").".".($msec*).".".$from.">\r\n";
return $header;
}
// 生成正文
private function _genBody($body){
$body = preg_replace("/(^|(\r\n))(\.)/", "\1.\3", $body);
return $body;
}
// @发送控制流
// var: 控制代码
private function _w($s){
socket_write($this->socket, $s);
}
// @读取返回的数据
private function _r(){
return socket_read($this->socket, );
}
}
、实现POP3协议的类dpop3.cls.php：
<?php
// 通过socket实现pop3协议的功能
// version: 1.2
// author : DCC
// create : 2014-01-18 11:26:53
// modify : 2014-01-18 22:57:26
// more : http://www.thinkful.cn/archives/389.html
class Dmail_pop3{
var $socket;
var $host;
var $user;
var $pwd;
var $port;
var $content;
// 初始化
function __construct($host, $user, $pwd, $port=){
$this->socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
$this->host = $host;
$this->user = $user;
$this->pwd = $pwd;
$this->port = $port;
}
// 收邮件
function pop3(){
$conn = socket_connect($this->socket, $this->host, $this->port);
if( $conn ){
// 接收连接成功的消息
$msg = "DCC: succeed connect to ".$this->host.":".$this->port."\n";
$msg .= $this->_r();
// 开始认证过程
$this->_w("USER ".$this->user."\r\n");
$msg .= $this->_r();
$this->_w("PASS ".$this->pwd."\r\n");
$msg .= $this->_r();
// 认证成功
if( substr_count($msg, '+OK')>= ){
//向服务器发送请求邮箱信息
$this->_w("STAT\r\n");
$mail_info = $this->_r();
$msg .= $mail_info;
preg_match('/\+OK\s(\d+)\s(\d+)/', $mail_info, $m);
$mail_num = $m[];
$mail_len = $m[];
//向服务器发送邮件i信息的请求
$this->content = '';
for( $i=; $i<=$mail_num; $i++ ){
// 查看该邮件的信息
$this->_w("LIST {$i}\r\n");
usleep();// waiting 0.16s
$mail_info = $this->_r();
$msg .= $mail_info;
preg_match('/\+OK\s(\d+)\s(\d+)/', $mail_info, $m);
//接收服务器返回的信息
$this->_w("RETR {$i}\r\n");
$msg.= 'DCC: reading mail(id='.$m[].')\'s content(length='.$m[].'byte):'."\n";
$data = '';
while( strlen($data)<$m[] ){
$msg .= '. ';
$data .= socket_read($this->socket, );
}
$this->content .= $data;
$msg.= "\nDCC: mail(id=".$m[].')\'s content(length='.$m[].'byte) read complete.'."\n";
}
}
}
return $msg;
}
// 返回收取邮件内容
function getContent(){
return $this->content;
}
// @发送控制流
// var: 控制代码
private function _w($s){
socket_write($this->socket, $s);
}
// @读取返回的数据
// var: 数据长度
private function _r($len=){
return socket_read($this->socket, $len);
}
}
、界面——代码就不贴出来了，看基本调用方法：
// 调用SMTP时
require_once 'dsmtp.cls.php';
$host = "smtp.qq.com";
// 使用QQ邮箱和密码
$user = '*******@qq.com';
$pwd = '*******';
$dmail = new Dmail_smtp($host, $user, $pwd);
$msg = $dmail->smtp($to, $from, $subject, $body);
// ********************************
// ********************************
// 调用POP3时（后续处理复杂一点）
require_once 'dpop3.cls.php';
$host = "pop.qq.com";
$dmail = new Dmail_pop3($host, $user, $pwd);
$msg = $dmail->pop3();
$ret = $msg;
if( strpos($msg, 'read complete')!==FALSE ){
$ct = $dmail->getContent();
$mail_list_arr = explode('X-QQ-SSF: ', $ct);
array_shift($mail_list_arr);// 去除第一个
$mail_list_arr = array_reverse($mail_list_arr);
foreach( $mail_list_arr as $v ){
// 中文标题的处理
if( preg_match('/Subject: =\?([^?]+)\?B\?([^?]+)\?=/i', $v, $subject) ){
$tmp_s = base64_decode($subject[]);
$tmp_s = $subject[]=='gbk'||$subject[]=='gb2312'? iconv('gbk', 'utf-8', $tmp_s) : $tmp_s;
}
// 英文标题
else if( preg_match('/Subject: (.*?)\r\n/i', $v, $subject) ){
$tmp_s = $subject[];
}
else{
$tmp_s = '邮件标题';
}
preg_match('/From: [^<]+<(.*?)>/i', $v, $from);
preg_match('/Date: (.*?)\r\n/i', $v, $date);
$mail_list .= $tmp_s.'|#DCC_LIST_INNER#|'
.$from[].'|#DCC_LIST_INNER#|'
.$date[].'|#DCC_MAIL_LIST_SEP#|';
}
$ret .= '|#DCC_POP3_DATA_SEP#|'.$mail_list;
}
echo $ret;
die();