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tta
9年前发布

PHP SMTP邮件发送类，支持SSL连接

[PHP]代码     

<?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;    $this->_userName = empty($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:' . $code . '<br />';    //发送命令给服务器    try{     if(socket_write($this->_socket, $command, strlen($command))){        //当邮件内容分多次发送时，没有$code，服务器没有返回      if(empty($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(empty($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;   }  }