| 发表于：2008-01-22 17:24:091楼 得分:0 |
<?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;
var $smtp_use = 1;
/* private variables */
var $sock;
/* constractor */
function smtp（$relay_host = " ", $smtp_port = 25, $auth = true,$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 = " ";
$this-> sock = false;
}
/* main function */
function sendmail（$to, $subject = " ", $body = " ", $from = "faisun@sina.com ", $mailtype= "txt ", $cc = " ", $bcc = " ", $additional_headers = " "){
$mail_from = $this-> get_address（$this-> strip_comment（$from));
$body = ereg_replace（ "（^ ¦（\r\n))（\.) ", "\1.\3 ", $body);
if（!$this-> smtp_use){
return @mail（$to,$subject,$body, "from: $from < ".$from. "> ");
}
$header .= "mime-version:1.0\r\n ";
if（$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 $sent;
}
/* private functions */
function smtp_send（$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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