251 lines
8.9 KiB
PHP
Executable file
251 lines
8.9 KiB
PHP
Executable file
<?php
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// http://www.daixiaorui.com/read/16.html
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class MailSMTP
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{
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public $smtp_port;
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public $time_out;
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public $host_name;
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public $log_file;
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public $relay_host;
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public $debug;
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public $auth;
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public $user;
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public $pass;
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public $sock;
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public function __construct($relay_host = "", $smtp_port = 25, $auth = false, $user, $pass)
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{
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$this->debug = false;
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$this->smtp_port = $smtp_port;
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$this->relay_host = $relay_host;
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$this->time_out = 30; // is used in fsockopen()
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$this->auth = $auth; // auth
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$this->user = $user;
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$this->pass = $pass;
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$this->host_name = "localhost"; //is used in HELO command
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$this->log_file = "";
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$this->sock = false;
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}
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public function sendmail($to, $totitle = "", $from, $fromtitle = "", $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "")
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{
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$mail_from = $this->get_address($this->strip_comment($from));
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$body = preg_replace("/(^|(\r\n))(\.)/", "\1.\3", $body);
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$header = "MIME-Version:1.0\r\n";
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if ($mailtype == "HTML") {
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$header .= 'Content-Type: text/html; charset="utf-8"' . "\r\n";
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}
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if (!empty($totitle)) {
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$header .= "To: =?utf-8?B?" . base64_encode($totitle) . "?= <{$to}>\r\n";
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} else {
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$header .= "To: {$to} <{$to}>\r\n";
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}
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if (!empty($cc)) {
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$header .= "Cc: {$cc}\r\n";
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}
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if (!empty($fromtitle)) {
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$header .= "From: =?utf-8?B?" . base64_encode($fromtitle) . "?= <{$from}>\r\n";
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} else {
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$header .= "From: {$from} <{$from}>\r\n";
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}
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$header .= "Subject: =?utf-8?B?" . base64_encode($subject) . "?=\r\n";
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$header .= $additional_headers;
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$header .= "Date: " . date("r") . "\r\n";
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$header .= "X-Mailer: By UIISC (PHP/" . phpversion() . ")\r\n";
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list($msec, $sec) = explode(" ", microtime());
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$header .= "Message-ID: <" . date("YmdHis", $sec) . "." . ($msec * 1000000) . "." . $mail_from . ">\r\n";
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$TO = explode(",", $this->strip_comment($to));
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if ($cc != "") {
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$TO = array_merge($TO, explode(",", $this->strip_comment($cc)));
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}
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if ($bcc != "") {
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$TO = array_merge($TO, explode(",", $this->strip_comment($bcc)));
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}
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$sent = true;
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foreach ($TO as $rcpt_to) {
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$rcpt_to = $this->get_address($rcpt_to);
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if (!$this->smtp_sockopen($rcpt_to)) {
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$this->log_write("Error: Cannot send email to " . $rcpt_to . "\n");
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$sent = false;
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continue;
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}
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if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body)) {
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$this->log_write("E-mail has been sent to <" . $rcpt_to . ">\n");
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} else {
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$this->log_write("Error: Cannot send email to <" . $rcpt_to . ">\n");
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$sent = false;
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}
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fclose($this->sock);
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$this->log_write("Disconnected from remote host\n");
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}
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return $sent;
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}
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/* Private Functions */
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public function smtp_send($helo, $from, $to, $header, $body = "")
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{
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if (!$this->smtp_putcmd("HELO", $helo)) {
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return $this->smtp_error("sending HELO command");
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}
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if ($this->auth) {
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if (!$this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user))) {
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return $this->smtp_error("sending HELO command");
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}
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if (!$this->smtp_putcmd("", base64_encode($this->pass))) {
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return $this->smtp_error("sending HELO command");
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}
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}
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if (!$this->smtp_putcmd("MAIL", "FROM:<" . $from . ">")) {
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return $this->smtp_error("sending MAIL FROM command");
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}
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if (!$this->smtp_putcmd("RCPT", "TO:<" . $to . ">")) {
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return $this->smtp_error("sending RCPT TO command");
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}
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if (!$this->smtp_putcmd("DATA")) {
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return $this->smtp_error("sending DATA command");
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}
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if (!$this->smtp_message($header, $body)) {
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return $this->smtp_error("sending message");
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}
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if (!$this->smtp_eom()) {
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return $this->smtp_error("sending <CR><LF>.<CR><LF> [EOM]");
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}
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if (!$this->smtp_putcmd("QUIT")) {
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return $this->smtp_error("sending QUIT command");
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}
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return true;
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}
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public function smtp_sockopen($address)
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{
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if ($this->relay_host == "") {
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return $this->smtp_sockopen_mx($address);
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} else {
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return $this->smtp_sockopen_relay();
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}
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}
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public function smtp_sockopen_relay()
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{
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$this->log_write("Trying to " . $this->relay_host . ":" . $this->smtp_port . "\n");
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$this->sock = @fsockopen($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out);
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if (!($this->sock && $this->smtp_ok())) {
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$this->log_write("Error: Cannot connenct to relay host " . $this->relay_host . "\n");
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$this->log_write("Error: " . $errstr . " (" . $errno . ")\n");
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return false;
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}
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$this->log_write("Connected to relay host " . $this->relay_host . "\n");
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return true;
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}
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public function smtp_sockopen_mx($address)
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{
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$domain = ereg_replace("^.+@([^@]+)$", "\1", $address);
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if (!@getmxrr($domain, $MXHOSTS)) {
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$this->log_write("Error: Cannot resolve MX \"" . $domain . "\"\n");
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return false;
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}
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foreach ($MXHOSTS as $host) {
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$this->log_write("Trying to " . $host . ":" . $this->smtp_port . "\n");
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$this->sock = @fsockopen($host, $this->smtp_port, $errno, $errstr, $this->time_out);
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if (!($this->sock && $this->smtp_ok())) {
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$this->log_write("Warning: Cannot connect to mx host " . $host . "\n");
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$this->log_write("Error: " . $errstr . " (" . $errno . ")\n");
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continue;
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}
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$this->log_write("Connected to mx host " . $host . "\n");
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return true;
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}
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$this->log_write("Error: Cannot connect to any mx hosts (" . implode(", ", $MXHOSTS) . ")\n");
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return false;
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}
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public function smtp_message($header, $body)
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{
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fputs($this->sock, $header . "\r\n" . $body);
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$this->smtp_debug("> " . str_replace("\r\n", "\n" . "> ", $header . "\n> " . $body . "\n> "));
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return true;
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}
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public function smtp_eom()
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{
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fputs($this->sock, "\r\n.\r\n");
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$this->smtp_debug(". [EOM]\n");
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return $this->smtp_ok();
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}
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public function smtp_ok()
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{
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$response = str_replace("\r\n", "", fgets($this->sock, 512));
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$this->smtp_debug($response . "\n");
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if (!preg_match("/^[23]/", $response)) {
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fputs($this->sock, "QUIT\r\n");
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fgets($this->sock, 512);
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$this->log_write("Error: Remote host returned \"" . $response . "\"\n");
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return false;
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}
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return true;
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}
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public function smtp_putcmd($cmd, $arg = "")
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{
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if ($arg != "") {
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if ($cmd == "") {
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$cmd = $arg;
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} else {
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$cmd = $cmd . " " . $arg;
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}
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}
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fputs($this->sock, $cmd . "\r\n");
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$this->smtp_debug("> " . $cmd . "\n");
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return $this->smtp_ok();
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}
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public function smtp_error($string)
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{
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$this->log_write("Error: Error occurred while " . $string . ".\n");
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return false;
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}
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public function log_write($message)
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{
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$this->smtp_debug($message);
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if ($this->log_file == "") {
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return true;
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}
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$message = date("M d H:i:s ") . get_current_user() . "[" . getmypid() . "]: " . $message;
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if (!@file_exists($this->log_file) || !($fp = @fopen($this->log_file, "a"))) {
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$this->smtp_debug("Warning: Cannot open log file \"" . $this->log_file . "\"\n");
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return false;
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}
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flock($fp, LOCK_EX);
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fputs($fp, $message);
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fclose($fp);
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return true;
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}
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public function strip_comment($address)
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{
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$comment = "/\([^()]*\)/";
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while (preg_match($comment, $address)) {
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$address = ereg_replace($comment, "", $address);
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}
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return $address;
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}
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public function get_address($address)
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{
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$address = preg_replace("/([ \t\r\n])+/", "", $address);
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$address = preg_replace("/^.*<(.+)>.*$/", "\1", $address);
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return $address;
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}
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public function smtp_debug($message)
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{
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if ($this->debug) {
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echo $message;
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}
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}
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}
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