/** * 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("[email protected]", "[email protected]", "XXXXX"); //设置 smtp 服务器,普通连接方式 * $mail->setServer("smtp.gmail.com", "[email protected]", "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; } }