PHP实现支持SSL连接的SMTP邮件发送类

作者: shaneZhang 分类: 互联网技术 发布时间: 2015-09-10 13:18

因为只有一个类,所以在这里直接贴代码了,本类可以实现ssl和不带ssl的smtp邮件发送。


setServer("smtp@126.com", "XXXXX@126.com", "XXXXX"); //设置smtp服务器,普通连接方式
* $mail->setServer("smtp.gmail.com", "XXXXX@gmail.com", "XXXXX", 465, true); //设置smtp服务器,到服务器的SSL连接
* $mail->setFrom("XXXXX"); //设置发件人
* $mail->setReceiver("XXXXX"); //设置收件人,多个收件人,调用多次
* $mail->setCc("XXXX"); //设置抄送,多个抄送,调用多次
* $mail->setBcc("XXXXX"); //设置秘密抄送,多个秘密抄送,调用多次
* $mail->addAttachment("XXXX"); //添加附件,多个附件,调用多次
* $mail->setMail("test", "test"); //设置邮件主题、内容
* $mail->sendMail(); //发送
*/
class MySendMail {
/**
* @var string 邮件传输代理用户名
* @access protected
*/
protected $_userName;
/**
* @var string 邮件传输代理密码
* @access protected
*/
protected $_password;
/**
* @var string 邮件传输代理服务器地址
* @access protected
*/
protected $_sendServer;
/**
* @var int 邮件传输代理服务器端口
* @access protected
*/
protected $_port;
/**
* @var string 发件人
* @access protected
*/
protected $_from;
/**
* @var array 收件人
* @access protected
*/
protected $_to = array();
/**
* @var array 抄送
* @access protected
*/
protected $_cc = array();
/**
* @var array 秘密抄送
* @access protected
*/
protected $_bcc = array();
/**
* @var string 主题
* @access protected
*/
protected $_subject;
/**
* @var string 邮件正文
* @access protected
*/
protected $_body;
/**
* @var array 附件
* @access protected
*/
protected $_attachment = array();
/**
* @var reource socket资源
* @access protected
*/
protected $_socket;
/**
* @var reource 是否是安全连接
* @access protected
*/
protected $_isSecurity;
/**
* @var string 错误信息
* @access protected
*/
protected $_errorMessage;
/**
* 设置邮件传输代理,如果是可以匿名发送有邮件的服务器,只需传递代理服务器地址就行
* @access public
* @param string $server 代理服务器的ip或者域名
* @param string $username 认证账号
* @param string $password 认证密码
* @param int $port 代理服务器的端口,smtp默认25号端口
* @param boolean $isSecurity 到服务器的连接是否为安全连接,默认false
* @return boolean
*/
public function setServer($server, $username="", $password="", $port=25, $isSecurity=false) {
$this->_sendServer = $server;
$this->_port = $port;
$this->_isSecurity = $isSecurity;
$this->_userName = empty($username) ? "" : base64_encode($username);
$this->_password = empty($password) ? "" : base64_encode($password);
return true;
}
/**
* 设置发件人
* @access public
* @param string $from 发件人地址
* @return boolean
*/
public function setFrom($from) {
$this->_from = $from;
return true;
}
/**
* 设置收件人,多个收件人,调用多次.
* @access public
* @param string $to 收件人地址
* @return boolean
*/
public function setReceiver($to) {
$this->_to[] = $to;
return true;
}
/**
* 设置抄送,多个抄送,调用多次.
* @access public
* @param string $cc 抄送地址
* @return boolean
*/
public function setCc($cc) {
$this->_cc[] = $cc;
return true;
}
/**
* 设置秘密抄送,多个秘密抄送,调用多次
* @access public
* @param string $bcc 秘密抄送地址
* @return boolean
*/
public function setBcc($bcc) {
$this->_bcc[] = $bcc;
return true;
}
/**
* 设置邮件附件,多个附件,调用多次
* @access public
* @param string $file 文件地址
* @return boolean
*/
public function addAttachment($file) {
if(!file_exists($file)) {
$this->_errorMessage = "file " . $file . " does not exist.";
return false;
}
$this->_attachment[] = $file;
return true;
}
/**
* 设置邮件信息
* @access public
* @param string $body 邮件主题
* @param string $subject 邮件主体内容,可以是纯文本,也可是是HTML文本
* @return boolean
*/
public function setMail($subject, $body) {
$this->_subject = base64_encode($subject);
$this->_body = base64_encode($body);
return true;
}
/**
* 发送邮件
* @access public
* @return boolean
*/
public function sendMail() {
$command = $this->getCommand();
$this->_isSecurity ? $this->socketSecurity() : $this->socket();
foreach ($command as $value) {
$result = $this->_isSecurity ? $this->sendCommandSecurity($value[0], $value[1]) : $this->sendCommand($value[0], $value[1]);
if($result) {
continue;
}
else{
return false;
}
}
//其实这里也没必要关闭,smtp命令:QUIT发出之后,服务器就关闭了连接,本地的socket资源会自动释放
$this->_isSecurity ? $this->closeSecutity() : $this->close();
return true;
}
/**
* 返回错误信息
* @return string
*/
public function error(){
if(!isset($this->_errorMessage)) {
$this->_errorMessage = "";
}
return $this->_errorMessage;
}
/**
* 返回mail命令
* @access protected
* @return array
*/
protected function getCommand() {
$separator = "----=_Part_" . md5($this->_from . time()) . uniqid(); //分隔符
$command = array(
array("HELO sendmail\r\n", 250)
);
if(!empty($this->_userName)){
$command[] = array("AUTH LOGIN\r\n", 334);
$command[] = array($this->_userName . "\r\n", 334);
$command[] = array($this->_password . "\r\n", 235);
}
//设置发件人
$command[] = array("MAIL FROM: <" . $this->_from . ">\r\n", 250);
$header = "FROM: <" . $this->_from . ">\r\n";
//设置收件人
if(!empty($this->_to)) {
$count = count($this->_to);
if($count == 1){
$command[] = array("RCPT TO: <" . $this->_to[0] . ">\r\n", 250);
$header .= "TO: <" . $this->_to[0] .">\r\n";
}
else{
for($i=0; $i<$count; $i++){
$command[] = array("RCPT TO: <" . $this->_to[$i] . ">\r\n", 250);
if($i == 0){
$header .= "TO: <" . $this->_to[$i] .">";
}
elseif($i + 1 == $count){
$header .= ",<" . $this->_to[$i] .">\r\n";
}
else{
$header .= ",<" . $this->_to[$i] .">";
}
}
}
}
//设置抄送
if(!empty($this->_cc)) {
$count = count($this->_cc);
if($count == 1){
$command[] = array("RCPT TO: <" . $this->_cc[0] . ">\r\n", 250);
$header .= "CC: <" . $this->_cc[0] .">\r\n";
}
else{
for($i=0; $i<$count; $i++){
$command[] = array("RCPT TO: <" . $this->_cc[$i] . ">\r\n", 250);
if($i == 0){
$header .= "CC: <" . $this->_cc[$i] .">";
}
elseif($i + 1 == $count){
$header .= ",<" . $this->_cc[$i] .">\r\n";
}
else{
$header .= ",<" . $this->_cc[$i] .">";
}
}
}
}
//设置秘密抄送
if(!empty($this->_bcc)) {
$count = count($this->_bcc);
if($count == 1) {
$command[] = array("RCPT TO: <" . $this->_bcc[0] . ">\r\n", 250);
$header .= "BCC: <" . $this->_bcc[0] .">\r\n";
}
else{
for($i=0; $i<$count; $i++){
$command[] = array("RCPT TO: <" . $this->_bcc[$i] . ">\r\n", 250);
if($i == 0){
$header .= "BCC: <" . $this->_bcc[$i] .">";
}
elseif($i + 1 == $count){
$header .= ",<" . $this->_bcc[$i] .">\r\n";
}
else{
$header .= ",<" . $this->_bcc[$i] .">";
}
}
}
}
//主题
$header .= "Subject: =?UTF-8?B?" . $this->_subject ."?=\r\n";
if(isset($this->_attachment)) {
//含有附件的邮件头需要声明成这个
$header .= "Content-Type: multipart/mixed;\r\n";
}
elseif(false){
//邮件体含有图片资源的,且包含的图片在邮件内部时声明成这个,如果是引用的远程图片,就不需要了
$header .= "Content-Type: multipart/related;\r\n";
}
else{
//html或者纯文本的邮件声明成这个
$header .= "Content-Type: multipart/alternative;\r\n";
}
//邮件头分隔符
$header .= "\t" . 'boundary="' . $separator . '"';
$header .= "\r\nMIME-Version: 1.0\r\n";
//这里开始是邮件的body部分,body部分分成几段发送
$header .= "\r\n--" . $separator . "\r\n";
$header .= "Content-Type:text/html; charset=utf-8\r\n";
$header .= "Content-Transfer-Encoding: base64\r\n\r\n";
$header .= $this->_body . "\r\n";
$header .= "--" . $separator . "\r\n";
//加入附件
if(!empty($this->_attachment)){
$count = count($this->_attachment);
for($i=0; $i<$count; $i++){
$header .= "\r\n--" . $separator . "\r\n";
$header .= "Content-Type: " . $this->getMIMEType($this->_attachment[$i]) . '; name="=?UTF-8?B?' . base64_encode( basename($this->_attachment[$i]) ) . '?="' . "\r\n";
$header .= "Content-Transfer-Encoding: base64\r\n";
$header .= 'Content-Disposition: attachment; filename="=?UTF-8?B?' . base64_encode( basename($this->_attachment[$i]) ) . '?="' . "\r\n";
$header .= "\r\n";
$header .= $this->readFile($this->_attachment[$i]);
$header .= "\r\n--" . $separator . "\r\n";
}
}
//结束邮件数据发送
$header .= "\r\n.\r\n";

$command[] = array("DATA\r\n", 354);
$command[] = array($header, 250);
$command[] = array("QUIT\r\n", 221);
return $command;
}
/**
* 发送命令
* @access protected
* @param string $command 发送到服务器的smtp命令
* @param int $code 期望服务器返回的响应吗
* @return boolean
*/
protected function sendCommand($command, $code) {
echo 'Send command:' . $command . ',expected code:' . $code . '
'; //发送命令给服务器 try{ if(socket_write($this->_socket, $command, strlen($command))){ //当邮件内容分多次发送时,没有$code,服务器没有返回 if(empty($code)) { return true; } //读取服务器返回 $data = trim(socket_read($this->_socket, 1024)); echo 'response:' . $data . '

'; if($data) { $pattern = "/^".$code."+?/"; if(preg_match($pattern, $data)) { return true; } else{ $this->_errorMessage = "Error:" . $data . "|**| command:"; return false; } } else{ $this->_errorMessage = "Error:" . socket_strerror(socket_last_error()); return false; } } else{ $this->_errorMessage = "Error:" . socket_strerror(socket_last_error()); return false; } }catch(Exception $e) { $this->_errorMessage = "Error:" . $e->getMessage(); } } /** * 安全连接发送命令 * @access protected * @param string $command 发送到服务器的smtp命令 * @param int $code 期望服务器返回的响应吗 * @return boolean */ protected function sendCommandSecurity($command, $code) { echo 'Send command:' . $command . ',expected code:' . $code . '
'; try { if(fwrite($this->_socket, $command)){ //当邮件内容分多次发送时,没有$code,服务器没有返回 if(empty($code)) { return true; } //读取服务器返回 $data = trim(fread($this->_socket, 1024)); echo 'response:' . $data . '

'; if($data) { $pattern = "/^".$code."+?/"; if(preg_match($pattern, $data)) { return true; } else{ $this->_errorMessage = "Error:" . $data . "|**| command:"; return false; } } else{ return false; } } else{ $this->_errorMessage = "Error: " . $command . " send failed"; return false; } }catch(Exception $e) { $this->_errorMessage = "Error:" . $e->getMessage(); } } /** * 读取附件文件内容,返回base64编码后的文件内容 * @access protected * @param string $file 文件 * @return mixed */ protected function readFile($file) { if(file_exists($file)) { $file_obj = file_get_contents($file); return base64_encode($file_obj); } else { $this->_errorMessage = "file " . $file . " dose not exist"; return false; } } /** * 获取附件MIME类型 * @access protected * @param string $file 文件 * @return mixed */ protected function getMIMEType($file) { if(file_exists($file)) { $mime = mime_content_type($file); /*if(! preg_match("/gif|jpg|png|jpeg/", $mime)){ $mime = "application/octet-stream"; }*/ return $mime; } else { return false; } } /** * 建立到服务器的网络连接 * @access protected * @return boolean */ protected function socket() { //创建socket资源 $this->_socket = socket_create(AF_INET, SOCK_STREAM, getprotobyname('tcp')); if(!$this->_socket) { $this->_errorMessage = socket_strerror(socket_last_error()); return false; } socket_set_block($this->_socket);//设置阻塞模式 //连接服务器 if(!socket_connect($this->_socket, $this->_sendServer, $this->_port)) { $this->_errorMessage = socket_strerror(socket_last_error()); return false; } $str = socket_read($this->_socket, 1024); if(!preg_match("/220+?/", $str)){ $this->_errorMessage = $str; return false; } return true; } /** * 建立到服务器的SSL网络连接 * @access protected * @return boolean */ protected function socketSecurity() { $remoteAddr = "tcp://" . $this->_sendServer . ":" . $this->_port; $this->_socket = stream_socket_client($remoteAddr, $errno, $errstr, 30); if(!$this->_socket){ $this->_errorMessage = $errstr; return false; } //设置加密连接,默认是ssl,如果需要tls连接,可以查看php手册stream_socket_enable_crypto函数的解释 stream_socket_enable_crypto($this->_socket, true, STREAM_CRYPTO_METHOD_SSLv23_CLIENT); stream_set_blocking($this->_socket, 1); //设置阻塞模式 $str = fread($this->_socket, 1024); if(!preg_match("/220+?/", $str)){ $this->_errorMessage = $str; return false; } return true; } /** * 关闭socket * @access protected * @return boolean */ protected function close() { if(isset($this->_socket) && is_object($this->_socket)) { $this->_socket->close(); return true; } $this->_errorMessage = "No resource can to be close"; return false; } /** * 关闭安全socket * @access protected * @return boolean */ protected function closeSecutity() { if(isset($this->_socket) && is_object($this->_socket)) { stream_socket_shutdown($this->_socket, STREAM_SHUT_WR); return true; } $this->_errorMessage = "No resource can to be close"; return false; } }

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