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讲解用PHP实现Jmai组件及发送邮件三例
来源:互联网  作者:  发布时间:2008-06-13

代码三:

<?php
class smtp
{
  /* 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()
    # www.phperz.com
    $this->auth = $auth;//auth
    $this->user = $user;
    $this->pass = $pass;
    #
    $this->host_name = "localhost"; //is used in HELO command
    $this->log_file = "";
    $this->sock = FALSE;
  }
  /* Main Function */
  function sendmail($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "")
  {
    $mail_from = $this->get_address($this->strip_comment($from));
    $body = ereg_replace("(^|( ))(.)", "1.3", $body);
    $header = "MIME-Version:1.0 ";
    if($mailtype=="HTML"){
      $header .= "Content-Type:text/html ";
    }
    $header .= "To: ".$to." ";
    if ($cc != "") {
      $header .= "Cc: ".$cc." ";
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    }
    $header .= "From: $from<".$from."> ";
    $header .= "Subject: ".$subject." ";
    $header .= $additional_headers;
    $header .= "Date: ".date("r")." ";
    $header .= "X-Mailer:By Redhat (PHP/".phpversion().") ";
    list($msec, $sec) = explode(" ", microtime());
    $header .= "Message-ID: <".date("YmdHis", $sec).".".($msec*1000000).".".$mail_from."> ";
    $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) {

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      $rcpt_to = $this->get_address($rcpt_to);
      if (!$this->smtp_sockopen($rcpt_to)) {
        $this->log_write("Error: Cannot send email to ".$rcpt_to." ");
        $sent = FALSE;
        continue;
      }
      if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body)) {
        $this->log_write("E-mail has been sent to <".$rcpt_to."> ");
      } else {
        $this->log_write("Error: Cannot send email to <".$rcpt_to."> ");
        $sent = FALSE;
      }
      fclose($this->sock);
      $this->log_write("Disconnected from remote host ");
    }
    return $sent;
  }
/* Private Functions */
  function smtp_send($helo, $from, $to, $header, $body = "")
  {
    if (!$this->smtp_putcmd("HELO", $helo)) {

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      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")) { phperz.com
      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." ");
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    $this->sock = @fsockopen($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." ");
      $this->log_write("Error: ".$errstr." (".$errno.") ");
      return FALSE;
    }
    $this->log_write("Connected to relay host ".$this->relay_host." ");
    return TRUE;
  }
  function smtp_sockopen_mx($address)
  {
    $domain = ereg_replace("^.+@([^@]+)$", "1", $address);
    if (!@getmxrr($domain, $MXHOSTS)) {
      $this->log_write("Error: Cannot resolve MX "".$domain."" ");
      return FALSE;
    }
    foreach ($MXHOSTS as $host) {
      $this->log_write("Trying to ".$host.":".$this->smtp_port." "); phperz~com
      $this->sock = @fsockopen($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." ");
        $this->log_write("Error: ".$errstr." (".$errno.") ");
        continue;
      }
      $this->log_write("Connected to mx host ".$host." ");
      return TRUE;
    }
    $this->log_write("Error: Cannot connect to any mx hosts (".implode(", ", $MXHOSTS).") ");
    return FALSE;
  }
  function smtp_message($header, $body)
  {
    fputs($this->sock, $header." ".$body);
    $this->smtp_debug("> ".str_replace(" ", " "."> ", $header." > ".$body." > ")); php程序员站
    return TRUE;
  }
  function smtp_eom()
  {
    fputs($this->sock, " . ");
    $this->smtp_debug(". [EOM] ");
    return $this->smtp_ok();
  }
  function smtp_ok()
  {
    $response = str_replace(" ", "", fgets($this->sock, 512));
    $this->smtp_debug($response." ");
    if (!ereg("^[23]", $response)) {
      fputs($this->sock, "QUIT ");
      fgets($this->sock, 512);
      $this->log_write("Error: Remote host returned "".$response."" ");
      return FALSE;
    }
    return TRUE;
  }
  function smtp_putcmd($cmd, $arg = "")
  {
    if ($arg != "") {
      if($cmd=="") $cmd = $arg;
      else $cmd = $cmd." ".$arg;
    }
    fputs($this->sock, $cmd." ");

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    $this->smtp_debug("> ".$cmd." ");
    return $this->smtp_ok();
  }
  function smtp_error($string)
  {
    $this->log_write("Error: Error occurred while ".$string.". ");
    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."" ");
      return FALSE;;
    }
    flock($fp, LOCK_EX);
    fputs($fp, $message);
    fclose($fp);
    return TRUE;

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  }
  function strip_comment($address)
  {
    $comment = "([^()]*)";
    while (ereg($comment, $address)) {
      $address = ereg_replace($comment, "", $address);
    }
    return $address;
  }
  function get_address($address)
  {
    $address = ereg_replace("([ ])+", "", $address);
    $address = ereg_replace("^.*<(.+)>.*$", "1", $address);
    return $address;
  }
  function smtp_debug($message)
  {
    if ($this->debug) {
    echo $message;
    }
  }
}
?>

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