<?php
/**
 * 邮件发送函数
 * @copyright			(C) 2005-2010 PHPCMS
 * @license				http://www.phpcms.cn/license/
 * @lastmodify			2010-6-1
 */
function runlog($mode = 'SMTP',$b = '',$c = '',$d='') {
	
}

/**
 * 发送邮件
 * @param $toemail 收件人email
 * @param $subject 邮件主题
 * @param $message 正文
 * @param $from 发件人
 * @param $cfg 邮件配置信息
 * @param $sitename 邮件站点名称
 */

function sendmail($toemail, $subject, $message, $from='',$cfg = array(), $sitename='') {
	if($sitename=='') {
		$siteid = get_siteid();
		$siteinfo = siteinfo($siteid);
		$sitename = $siteinfo['site_title'];
	}
	
	if($cfg && is_array($cfg)) {
		$from = $cfg['from'];
		$mail = $cfg;
		$mail_type = $cfg['mail_type']; //邮件发送模式
	} else {
		$cfg = getcache('common','commons');
		$from = $cfg['mail_from'];
		$mail_type = $cfg['mail_type']; //邮件发送模式
		$mail= Array (
			'mailsend' => 2,
			'maildelimiter' => 1,
			'mailusername' => 1,
			'server' => $cfg['mail_server'],
			'port' => $cfg['mail_port'],
			'auth' => $cfg['mail_auth'],
			'from' => $cfg['mail_from'],
			'auth_username' => $cfg['mail_user'],
			'auth_password' => $cfg['mail_password']
		);		
	}
	//mail 发送模式
	if($mail_type==0) {
		$headers  = 'MIME-Version: 1.0' . "\r\n";
		$headers .= 'Content-type: text/html; charset='.CHARSET.'' . "\r\n";
		$headers .= 'From: '.$sitename.' <'.$from.'>' . "\r\n";
		mail($toemail, $subject, $message, $headers);
		return true;
	}
	//邮件头的分隔符
	$maildelimiter = $mail['maildelimiter'] == 1 ? "\r\n" : ($mail['maildelimiter'] == 2 ? "\r" : "\n");
	//收件人地址中包含用户名
	$mailusername = isset($mail['mailusername']) ? $mail['mailusername'] : 1;
	//端口
	$mail['port'] = $mail['port'] ? $mail['port'] : 25;
	$mail['mailsend'] = $mail['mailsend'] ? $mail['mailsend'] : 1;
	
	//发信者
	$email_from = $from == '' ? '=?'.CHARSET.'?B?'.base64_encode($sitename)."?= <".$from.">" : (preg_match('/^(.+?) \<(.+?)\>$/',$from, $mats) ? '=?'.CHARSET.'?B?'.base64_encode($mats[1])."?= <$mats[2]>" : $from);
	
	$email_to = preg_match('/^(.+?) \<(.+?)\>$/',$toemail, $mats) ? ($mailusername ? '=?'.CHARSET.'?B?'.base64_encode($mats[1])."?= <$mats[2]>" : $mats[2]) : $toemail;;
	
	$email_subject = '=?'.CHARSET.'?B?'.base64_encode(preg_replace("/[\r|\n]/", '', '['.$sitename.'] '.$subject)).'?=';
	$email_message = chunk_split(base64_encode(str_replace("\n", "\r\n", str_replace("\r", "\n", str_replace("\r\n", "\n", str_replace("\n\r", "\r", $message))))));
	
	$headers = "From: $email_from{$maildelimiter}X-Priority: 3{$maildelimiter}X-Mailer: PHPCMS-V9 {$maildelimiter}MIME-Version: 1.0{$maildelimiter}Content-type: text/html; charset=".CHARSET."{$maildelimiter}Content-Transfer-Encoding: base64{$maildelimiter}";
		
	if(!$fp = fsockopen($mail['server'], $mail['port'], $errno, $errstr, 30)) {
		runlog('SMTP', "($mail[server]:$mail[port]) CONNECT - Unable to connect to the SMTP server", 0);
		return false;
	}
	stream_set_blocking($fp, true);

	$lastmessage = fgets($fp, 512);
	if(substr($lastmessage, 0, 3) != '220') {
		runlog('SMTP', "$mail[server]:$mail[port] CONNECT - $lastmessage", 0);
		return false;
	}

	fputs($fp, ($mail['auth'] ? 'EHLO' : 'HELO')." uchome\r\n");
	$lastmessage = fgets($fp, 512);
	if(substr($lastmessage, 0, 3) != 220 && substr($lastmessage, 0, 3) != 250) {
		runlog('SMTP', "($mail[server]:$mail[port]) HELO/EHLO - $lastmessage", 0);
		return false;
	}

	while(1) {
		if(substr($lastmessage, 3, 1) != '-' || empty($lastmessage)) {
			break;
		}
		$lastmessage = fgets($fp, 512);
	}

	if($mail['auth']) {
		fputs($fp, "AUTH LOGIN\r\n");
		$lastmessage = fgets($fp, 512);
		if(substr($lastmessage, 0, 3) != 334) {
			runlog('SMTP', "($mail[server]:$mail[port]) AUTH LOGIN - $lastmessage", 0);
			return false;
		}

		fputs($fp, base64_encode($mail['auth_username'])."\r\n");
		$lastmessage = fgets($fp, 512);
		if(substr($lastmessage, 0, 3) != 334) {
			runlog('SMTP', "($mail[server]:$mail[port]) USERNAME - $lastmessage", 0);
			return false;
		}

		fputs($fp, base64_encode($mail['auth_password'])."\r\n");
		$lastmessage = fgets($fp, 512);
		if(substr($lastmessage, 0, 3) != 235) {
			runlog('SMTP', "($mail[server]:$mail[port]) PASSWORD - $lastmessage", 0);
			return false;
		}

		$email_from = $mail['from'];
	}

	fputs($fp, "MAIL FROM: <".preg_replace("/.*\<(.+?)\>.*/", "\\1", $email_from).">\r\n");
	$lastmessage = fgets($fp, 512);
	if(substr($lastmessage, 0, 3) != 250) {
		fputs($fp, "MAIL FROM: <".preg_replace("/.*\<(.+?)\>.*/", "\\1", $email_from).">\r\n");
		$lastmessage = fgets($fp, 512);
		if(substr($lastmessage, 0, 3) != 250) {
			runlog('SMTP', "($mail[server]:$mail[port]) MAIL FROM - $lastmessage", 0);
			return false;
		}
	}

	fputs($fp, "RCPT TO: <".preg_replace("/.*\<(.+?)\>.*/", "\\1", $toemail).">\r\n");
	$lastmessage = fgets($fp, 512);
	if(substr($lastmessage, 0, 3) != 250) {
		fputs($fp, "RCPT TO: <".preg_replace("/.*\<(.+?)\>.*/", "\\1", $toemail).">\r\n");
		$lastmessage = fgets($fp, 512);
		runlog('SMTP', "($mail[server]:$mail[port]) RCPT TO - $lastmessage", 0);
		return false;
	}

	fputs($fp, "DATA\r\n");
	$lastmessage = fgets($fp, 512);
	if(substr($lastmessage, 0, 3) != 354) {
		runlog('SMTP', "($mail[server]:$mail[port]) DATA - $lastmessage", 0);
		return false;
	}

	$headers .= 'Message-ID: <'.gmdate('YmdHs').'.'.substr(md5($email_message.microtime()), 0, 6).rand(100000, 999999).'@'.$_SERVER['HTTP_HOST'].">{$maildelimiter}";

	fputs($fp, "Date: ".gmdate('r')."\r\n");
	fputs($fp, "To: ".$email_to."\r\n");
	fputs($fp, "Subject: ".$email_subject."\r\n");
	fputs($fp, $headers."\r\n");
	fputs($fp, "\r\n\r\n");
	fputs($fp, "$email_message\r\n.\r\n");
	$lastmessage = fgets($fp, 512);
	if(substr($lastmessage, 0, 3) != 250) {
		runlog('SMTP', "($mail[server]:$mail[port]) END - $lastmessage", 0);
	}
	fputs($fp, "QUIT\r\n");
	return true;
}
?>