PHP实现支持SSL连接的SMTP邮件发送类
发布时间：2022-06-21 09:56:15 所属栏目：PHP教程 来源：互联网
导读：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
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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 $command = array( array("HELO sendmailrn", 250) ); if(!emptyempty($this->_userName)){ $command[] = array("AUTH LOGINrn", 334); $command[] = array($this->_userName . "rn", 334); $command[] = array($this->_password . "rn", 235); } //设置发件人 $command[] = array("MAIL FROM: <" . $this->_from . ">rn", 250); $header = "FROM: <" . $this->_from . ">rn"; //设置收件人 if(!emptyempty($this->_to)) { $count = count($this->_to); if($count == 1){ $command[] = array("RCPT TO: <" . $this->_to[0] . ">rn", 250); $header .= "TO: <" . $this->_to[0] .">rn"; } else{ for($i=0; $i<$count; $i++){ $command[] = array("RCPT TO: <" . $this->_to[$i] . ">rn", 250); if($i == 0){ $header .= "TO: <" . $this->_to[$i] .">"; } elseif($i + 1 == $count){ $header .= ",<" . $this->_to[$i] .">rn"; } 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] . ">rn", 250); $header .= "CC: <" . $this->_cc[0] .">rn"; } else{ for($i=0; $i<$count; $i++){ $command[] = array("RCPT TO: <" . $this->_cc[$i] . ">rn", 250); if($i == 0){ $header .= "CC: <" . $this->_cc[$i] .">"; } elseif($i + 1 == $count){ $header .= ",<" . $this->_cc[$i] .">rn"; } 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] . ">rn", 250); $header .= "BCC: <" . $this->_bcc[0] .">rn"; } else{ for($i=0; $i<$count; $i++){ $command[] = array("RCPT TO: <" . $this->_bcc[$i] . ">rn", 250); if($i == 0){ $header .= "BCC: <" . $this->_bcc[$i] .">"; } elseif($i + 1 == $count){ $header .= ",<" . $this->_bcc[$i] .">rn"; } else{ $header .= ",<" . $this->_bcc[$i] .">"; } } } } //主题 $header .= "Subject: =?UTF-8?B?" . $this->_subject ."?=rn"; if(isset($this->_attachment)) { //含有附件的邮件头需要声明成这个 $header .= "Content-Type: multipart/mixed;rn"; } 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;rn"; } else{ //html或者纯文本的邮件声明成这个 $header .= "Content-Type: multipart/alternative;rn"; } //邮件头分隔符 $header .= "t" . 'boundary="' . $separator . '"'; $header .= "rnMIME-Version: 1.0rn"; //这里开始是邮件的body部分，body部分分成几段发送 $header .= "rn--" . $separator . "rn"; $header .= "Content-Type:text/html; charset=utf-8rn"; $header .= "Content-Transfer-Encoding: base64rnrn"; $header .= $this->_body . "rn"; $header .= "--" . $separator . "rn"; //加入附件 if(!emptyempty($this->_attachment)){ $count = count($this->_attachment); for($i=0; $i<$count; $i++){ $header .= "rn--" . $separator . "rn"; $header .= "Content-Type: " . $this->getMIMEType($this->_attachment[$i]) . '; name="=?UTF-8?B?' . base64_encode( basename($this->_attachment[$i]) ) . '?="' . "rn"; $header .= "Content-Transfer-Encoding: base64rn"; $header .= 'Content-Disposition: attachment; filename="=?UTF-8?B?' . base64_encode( basename($this->_attachment[$i]) ) . '?="' . "rn"; $header .= "rn"; $header .= $this->readFile($this->_attachment[$i]); $header .= "rn--" . $separator . "rn"; } } //结束邮件数据发送 $header .= "rn.rn"; $command[] = array("DATArn", 354); $command[] = array($header, 250); $command[] = array("QUITrn", 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; } } （编辑：岳阳站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
