每日博客
php
<?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 = ""; $this->sock = false; } /* Main Function */ function sendmail($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "") { $mail_from = $this->get_address($this->strip_comment($from)); $body = ereg_replace("(^|(rn))(.)", "1.3", $body); $header = "MIME-Version:1.0rn"; if ($mailtype == "HTML") {$header .= "Content-Type:text/htmlrn";} $header .= "To: " . $to . "rn"; if ($cc != "") {$header .= "Cc: " . $cc . "rn";} $header .= "From(www.jb51.net): $from<" . $from . ">rn"; $header .= "Subject: " . $subject . "rn"; $header .= $additional_headers; $header .= "Date: " . date("r") . "rn"; $header .= "X-Mailer:By Redhat (PHP/" . phpversion() . ")rn"; list ($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 $sent; } /* Private Functions */ function smtp_send($helo, $from, $to, $header, $body = "") { if (!$this->smtp_putcmd("HELO", $helo)) {return $this->smtp_error("sending HELO command");} if ($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, $MXHOSTS)) {return false;} foreach ($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($this->sock, 512); return false; } return true; } function smtp_putcmd($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"))) {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 . ";";}} } ?>
