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PHP实现支持SSL连接的SMTP邮件发送类
这篇文章主要介绍了PHP实现支持SSL连接的SMTP邮件发送类,实例分析了php实现smtp邮件发送类的原理与技巧,以及支持SSL连接的方法,需要的朋友可以参考下
本文实例讲述了PHP实现支持SSL连接的SMTP邮件发送类,分享给大家供大家参考。具体如下:
该实例代码测试过了gmail和QQ邮箱的SMTP,具体代码如下:
- <?php
- /**
- * 邮件发送类
- * 支持发送纯文本邮件和HTML格式的邮件,可以多收件人,多抄送,多秘密抄送,带附件(单个或多个附件),支持到服务器的ssl连接
- * 需要的php扩展:sockets、Fileinfo和openssl。
- * 编码格式是UTF-8,传输编码格式是base64
- * @example
- * $mail = new MySendMail();
- * $mail->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", "<b>test</b>"); //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;
- $this->_userName = emptyempty($username) ? "" : base64_encode($username);
- $this->_password = emptyempty($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
- $command = array(
- array("HELO sendmail\r\n", 250)
- );
- if(!emptyempty($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: <" . $this->_from . ">\r\n";
- //设置收件人
- if(!emptyempty($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(!emptyempty($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(!emptyempty($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 .= "--" . $separator . "\r\n";
- //加入附件
- if(!emptyempty($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:' . $code . '<br />';
- //发送命令给服务器
- try{
- if(socket_write($this->_socket, $command, strlen($command))){
- //当邮件内容分多次发送时,没有$code,服务器没有返回
- if(emptyempty($code)) {
- return true;
- }
- //读取服务器返回
- $data = trim(socket_read($this->_socket, 1024));
- echo 'response:' . $data . '<br /><br />';
- if($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:' . $code . '<br />';
- try {
- if(fwrite($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(emptyempty($code)) {
- return true;
- }
- //读取服务器返回
- $data = trim(fread($this->_socket, 1024));
- echo 'response:' . $data . '<br /><br />';
- if($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;
- }
- }
出处:http://www.phpfensi.com/php/20210515/15343.html
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