详细讲解PHP的Jmai组件及发送邮件实例

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详细讲解PHP的Jmai组件及发送邮件实例

以下为引用的内容：
<?php
class smtp
{
   
    var $smtp_port;
    var $time_out;
    var $host_name;
    var $log_file;
    var $relay_host;
    var $debug;
    var $auth;
    var $user;
    var $pass;
   
    var $sock;
   
    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;
    }
   
    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;
    }

    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, $header."\r\n".$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;
        }
    }
}
?>

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