<?php
/*邮件发送类
*功能：php socket 使用smtp服务器发送邮件
*作者:longlong
*时间:2007-11-26
*/
class smtp {
/* 全局变量 */
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 $sock;
/* 构造函数 */
function smtp($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 = "";
$this->sock = false;
}
/* 主函数，发送邮件 */
function sendmail($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 $sent;
}
/* 私有函数 */
function smtp_send($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;
}
}
}本文地址：
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