『一个SMTP类』

2004.08.10 09.28.35


/*
邮件发送SMTP类,李平国2004.8.3日整理
*/
class smtp //CLASS BEGIN
{
/* Public Variables */
var $smtp_port;
var $time_out;
var $host_name;
var $log_file;
var $relay_host;
var $debug;
var $auth;
var $user;
var $pass;

/* Private Variables */
var $sock;

/* Constractor */

function smtp($relay_host = "", $smtp_port = 25,$auth = false,$user,$pass)
{
$this->debug = FALSE;
$this->smtp_port = $smtp_port;
$this->relay_host = $relay_host;
$this->time_out = 30; //is used in fsockopen()
#
$this->auth = $auth;//auth
$this->user = $user;
$this->pass = $pass;
#
$this->host_name = "localhost"; //is used in HELO comman
$this->log_file = "";
$this->sock = FALSE;

}

/* Main Function */
function sendmail($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "")
{
$mail_from = $this->get_address($this->strip_comment($from));
$body = ereg_replace("(^|(\r\n))(\.)", "\1.\3", $body);
$header .= "MIME-Version:1.0\r\n";
if($mailtype=="HTML")
{
$header .= "Content-Type:text/html\r\n";
}
$header .= "To: ".$to."\r\n";
if ($cc != "")
{
$header .= "Cc: ".$cc."\r\n";
}
$header .= "From: $from<".$from.">\r\n";
$header .= "Subject: ".$subject."\r\n";
$header .= $additional_headers;
$header .= "Date: ".date("r")."\r\n";
$header .= "X-Mailer:By Redhat (PHP/".phpversion().")\r\n";
list($msec, $sec) = explode(" ", microtime());
$header .= "Message-ID: <".date("YmdHis", $sec).".".($msec*1000000).".".$mail_from.">\r\n";
$TO = explode(",", $this->strip_comment($to));
if ($cc != "")
{
$TO = array_merge($TO, explode(",", $this->strip_comment($cc)));
}
if ($bcc != "")
{
$TO = array_merge($TO, explode(",", $this->strip_comment($bcc)));
}
$sent = TRUE;
foreach ($TO as $rcpt_to)
{
$rcpt_to = $this->get_address($rcpt_to);
if (!$this->smtp_sockopen($rcpt_to))
{
$this->log_write("Error: Cannot send email to ".$rcpt_to."\n");
$sent = FALSE;
continue;
}

if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body))
{
$this->log_write("E-mail has been sent to <".$rcpt_to.">\n");
}
else
{
$this->log_write("Error: Cannot send email to <".$rcpt_to.">\n");
$sent = FALSE;
}

fclose($this->sock);
$this->log_write("Disconnected from remote host\n");
}
return $sent;
}

/* Private Functions */
function smtp_send($helo, $from, $to, $header, $body = "")
{
if (!$this->smtp_putcmd("HELO", $helo))
{
return $this->smtp_error("sending HELO command");
}

#auth
if($this->auth)
{
if (!$this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user)))
{
return $this->smtp_error("sending HELO command");
}

if (!$this->smtp_putcmd("", base64_encode($this->pass)))
{
return $this->smtp_error("sending HELO command");
}
}

#

if (!$this->smtp_putcmd("MAIL", "FROM:<".$from.">"))

{

return $this->smtp_error("sending MAIL FROM command");

}



if (!$this->smtp_putcmd("RCPT", "TO:<".$to.">"))

{

return $this->smtp_error("sending RCPT TO command");

}



if (!$this->smtp_putcmd("DATA"))

{

return $this->smtp_error("sending DATA command");

}



if (!$this->smtp_message($header, $body))

{

return $this->smtp_error("sending message");

}



if (!$this->smtp_eom())

{

return $this->smtp_error("sending . [EOM]");

}



if (!$this->smtp_putcmd("QUIT"))

{

return $this->smtp_error("sending QUIT command");

}



return TRUE;

}



function smtp_sockopen($address)

{

if ($this->relay_host == "")

{

return $this->smtp_sockopen_mx($address);

}

else

{

return $this->smtp_sockopen_relay();

}

}



function smtp_sockopen_relay()

{

$this->log_write("Trying to ".$this->relay_host.":".$this->smtp_port."\n");

$this->sock = @fsockopen($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out);



if (!($this->sock && $this->smtp_ok()))

{

$this->log_write("Error: Cannot connenct to relay host ".$this->relay_host."\n");

$this->log_write("Error: ".$errstr." (".$errno.")\n");

return FALSE;

}

$this->log_write("Connected to relay host ".$this->relay_host."\n");

return TRUE;;

}



function smtp_sockopen_mx($address)

{

$domain = ereg_replace("^.+@([^@]+)$", "\1", $address);

if (!@getmxrr($domain, $MXHOSTS))

{

$this->log_write("Error: Cannot resolve MX \"".$domain."\"\n");

return FALSE;

}

foreach ($MXHOSTS as $host)

{

$this->log_write("Trying to ".$host.":".$this->smtp_port."\n");

$this->sock = @fsockopen($host, $this->smtp_port, $errno, $errstr, $this->time_out);

if (!($this->sock && $this->smtp_ok()))

{

$this->log_write("Warning: Cannot connect to mx host ".$host."\n");

$this->log_write("Error: ".$errstr." (".$errno.")\n");

continue;

}

$this->log_write("Connected to mx host ".$host."\n");

return TRUE;

}

$this->log_write("Error: Cannot connect to any mx hosts (".implode(", ", $MXHOSTS).")\n");

return FALSE;

}



function smtp_message($header, $body)

{

fputs($this->sock, $header."\r\n".$body);

$this->smtp_debug("> ".str_replace("\r\n", "\n"."> ", $header."\n> ".$body."\n> "));



return TRUE;

}



function smtp_eom()

{

fputs($this->sock, "\r\n.\r\n");

$this->smtp_debug(". [EOM]\n");



return $this->smtp_ok();

}



function smtp_ok()

{

$response = str_replace("\r\n", "", fgets($this->sock, 512));

$this->smtp_debug($response."\n");



if (!ereg("^[23]", $response))

{

fputs($this->sock, "QUIT\r\n");

fgets($this->sock, 512);

$this->log_write("Error: Remote host returned \"".$response."\"\n");

return FALSE;

}

return TRUE;

}



function smtp_putcmd($cmd, $arg = "")

{

if ($arg != "")

{

if($cmd=="")

$cmd = $arg;

else

$cmd = $cmd." ".$arg;

}



fputs($this->sock, $cmd."\r\n");

$this->smtp_debug("> ".$cmd."\n");



return $this->smtp_ok();

}



function smtp_error($string)

{

$this->log_write("Error: Error occurred while ".$string.".\n");

return FALSE;

}



function log_write($message)

{

$this->smtp_debug($message);



if ($this->log_file == "")

{

return TRUE;

}



$message = date("M d H:i:s ").get_current_user()."[".getmypid()."]: ".$message;

if (!@file_exists($this->log_file) || !($fp = @fopen($this->log_file, "a")))

{

$this->smtp_debug("Warning: Cannot open log file \"".$this->log_file."\"\n");

return FALSE;;

}

flock($fp, LOCK_EX);

fputs($fp, $message);

fclose($fp);



return TRUE;

}



function strip_comment($address)

{

$comment = "\([^()]*\)";

while (ereg($comment, $address))

{

$address = ereg_replace($comment, "", $address);

}



return $address;

}



function get_address($address)

{

$address = ereg_replace("([ \t\r\n])+", "", $address);

$address = ereg_replace("^.*<(.+)>.*$", "\1", $address);



return $address;

}



function smtp_debug($message)

{

if ($this->debug)

{

echo $message;

}

}



} //CLASS END

?>

使用



--------------------------------------------------------------------------------



//require("sm.php");

##########################################

$smtpserver = "smtp.sina.com.cn"; //SMTP邮件服务器

$smtpserverport =25; //SMTP端口号

$smtpusermail = "yourname@sina.com"; //SMTP发送邮件地址

$smtpuser = "yourname@sina.com";

$smtppass = "password"; //SMTP邮件密码

$smtpemailto = "someone@hotmail.com"; //目标邮件地址

$mailsubject = "Test Subject"; //邮件主题

$mailbody = "
This is a test mail
";//邮件内容

$mailtype = "HTML"; //邮件发送方式(HTML/TXT)

##########################################

$smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);//这里面的一个true是表示使用身份验证,否则不使用身份验证.

$smtp->debug = TRUE; //是否显示发送的调试信息

$smtp->sendmail("test@kenfor.com", $smtpusermail, $mailsubject, $mailbody, $mailtype);

?>