php socket 使用smtp服務器發送郵件

2024-05-04 21:47:36

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/*郵件發送類

*功能：php socket 使用smtp服務器發送郵件

*作者:longlong

*時間:2007-11-26

*/

class smtp

{

/* 全局變量 */

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;

/* 構造函數 */

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 command

  $this->log_file = "";

  $this->sock = false;

}

/* 主函數，發送郵件 */

function sendmail($flag, $boundary, $to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "")

{

  $mail_from = $this->get_address($this->strip_comment($from));

  $body = ereg_replace("(^|(rn))(.)", "1.3", $body);

  $header = "mime-version:1.0rn";



  //*

  if($mailtype=="html"){

  //echo $boundary;exit;

if($flag==2)

{

  $header .= "content-type:multipart/mixed; boundary= $boundaryrn";

  //$header .= "content-type:text/htmlrn";

}

else

{

  $header .= "content-type:text/htmlrn";

}

  }

  //*/

  $header .= "to: ".$to."rn";

  if ($cc != "") {

  $header .= "cc: ".$cc."rn";

  }

  $header .= "from: $from<".$from.">rn";

  $header .= "subject: ".$subject."rn";

  $header .= $additional_headers;

  $header .= "date: ".date("r")."rn";

  $header .= "x-mailer:by redhat (php/".phpversion().")rn";

  //$header.=$body;//edit by shaolong



  list($msec, $sec) = explode(" ", microtime());

  $header .= "message-id: <".date("ymdhis", $sec).".".($msec*1000000).".".$mail_from.">rn";

  $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 hostn");

  }

  return $sent;

}

/* 私有函數 */

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 <cr><lf>.<cr><lf> [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, $header."rn".$body);

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

  return true;

}

function smtp_eom()

{

  fputs($this->sock, "rn.rn");

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

  return $this->smtp_ok();

}

function smtp_ok()

{

  $response = str_replace("rn", "", fgets($this->sock, 512));

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

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

  fputs($this->sock, "quitrn");

  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."rn");

  $this->smtp_debug("> ".$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("([ trn])+", "", $address);

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

  return $address;

}

function smtp_debug($message)

{

  if ($this->debug) {

  echo $message;

  }

}

}