define('SMTP_STATUS_NOT_CONNECTED', 1, true);define('SMTP_STATUS_CONNECTED', 2, true);class smtp{ var $connection; var $recipients; var $headers; var $timeout; var $errors; var $status; var $body; var $from; var $host; var $port; var $helo; var $auth; var $user; var $pass; /** * 参数为一个数组 * host SMTP 服务器的主机 默认：localhost * port SMTP 服务器的端口 默认：25 * helo 发送HELO命令的名称 默认：localhost * user SMTP 服务器的用户名 默认：空值 * pass SMTP 服务器的登陆密码 默认：空值 * timeout 连接超时的时间 默认：5 * @return bool */ function smtp($params = array()) { if (!defined('CRLF')) { define('CRLF', "\r\n", true); } $this->timeout = 10; $this->status = SMTP_STATUS_NOT_CONNECTED; $this->host = 'localhost'; $this->port = 25; $this->auth = false; $this->user = ''; $this->pass = ''; $this->errors = array(); foreach ($params AS $key => $value) { $this->$key = $value; } $this->helo = $this->host; // 如果没有设置用户名则不验证 $this->auth = ('' == $this->user) ? false : true; } function connect($params = array()) { if (!isset($this->status)) { $obj = new smtp($params); if ($obj->connect()) { $obj->status = SMTP_STATUS_CONNECTED; } return $obj; } else { if (!empty($GLOBALS['_CFG']['smtp_ssl'])) { $this->host = "ssl://" . $this->host; } $this->connection = @fsockopen($this->host, $this->port, $errno, $errstr, $this->timeout); if ($this->connection === false) { $this->errors[] = 'Access is denied.'; return false; } @socket_set_timeout($this->connection, 0, 250000); $greeting = $this->get_data(); if (is_resource($this->connection)) { $this->status = 2; return $this->auth ? $this->ehlo() : $this->helo(); } else { log_write($errstr, __FILE__, __LINE__); $this->errors[] = 'Failed to connect to server: ' . $errstr; return false; } } } /** * 参数为数组 * recipients 接收人的数组 * from 发件人的地址，也将作为回复地址 * headers 头部信息的数组 * body 邮件的主体 */ function send($params = array()) { foreach ($params AS $key => $value) { $this->$key = $value; } if ($this->is_connected()) { // 服务器是否需要验证 if ($this->auth) { if (!$this->auth()) { return false; } } $this->mail($this->from); if (is_array($this->recipients)) { foreach ($this->recipients AS $value) { $this->rcpt($value); } } else { $this->rcpt($this->recipients); } if (!$this->data()) { return false; } $headers = str_replace(CRLF . '.', CRLF . '..', trim(implode(CRLF, $this->headers))); $body = str_replace(CRLF . '.', CRLF . '..', $this->body); $body = substr($body, 0, 1) == '.' ? '.' . $body : $body; $this->send_data($headers); $this->send_data(''); $this->send_data($body); $this->send_data('.'); return (substr($this->get_data(), 0, 3) === '250'); } else { $this->errors[] = 'Not connected!'; return false; } } function helo() { if (is_resource($this->connection) AND $this->send_data('HELO ' . $this->helo) AND substr($error = $this->get_data(), 0, 3) === '250' ) { return true; } else { $this->errors[] = 'HELO command failed, output: ' . trim(substr($error, 3)); return false; } } function ehlo() { if (is_resource($this->connection) AND $this->send_data('EHLO ' . $this->helo) AND substr($error = $this->get_data(), 0, 3) === '250' ) { return true; } else { $this->errors[] = 'EHLO command failed, output: ' . trim(substr($error, 3)); return false; } } function auth() { if (is_resource($this->connection) AND $this->send_data('AUTH LOGIN') AND substr($error = $this->get_data(), 0, 3) === '334' AND $this->send_data(base64_encode($this->user)) // Send username AND substr($error = $this->get_data(),0,3) === '334' AND $this->send_data(base64_encode($this->pass)) // Send password AND substr($error = $this->get_data(),0,3) === '235' ) { return true; } else { $this->errors[] = 'AUTH command failed: ' . trim(substr($error, 3)); return false; } } function mail($from) { if ($this->is_connected() AND $this->send_data('MAIL FROM:<' . $from . '>') AND substr($this->get_data(), 0, 2) === '250' ) { return true; } else { return false; } } function rcpt($to) { if ($this->is_connected() AND $this->send_data('RCPT TO:<' . $to . '>') AND substr($error = $this->get_data(), 0, 2) === '25') { return true; } else { $this->errors[] = trim(substr($error, 3)); return false; } } function data() { if ($this->is_connected() AND $this->send_data('DATA') AND substr($error = $this->get_data(), 0, 3) === '354' ) { return true; } else { $this->errors[] = trim(substr($error, 3)); return false; } } function is_connected() { return (is_resource($this->connection) AND ($this->status === SMTP_STATUS_CONNECTED)); } function send_data($data) { if (is_resource($this->connection)) { return fwrite($this->connection, $data . CRLF, strlen($data) + 2); } else { return false; } } function get_data() { $return = ''; $line = ''; if (is_resource($this->connection)) { while (strpos($return, CRLF) === false OR $line{3} !== ' ') { $line = fgets($this->connection, 512); $return .= $line; } return trim($return); } else { return ''; } } /** * 获得最后一个错误信息 * * @access public * @return string */ function error_msg() { if (!empty($this->errors)) { $len = count($this->errors) - 1; return $this->errors[$len]; } else { return ''; } }}?>
