<?php
+
/**
* Deliver_SMTP.class.php
*
- * Copyright (c) 1999-2002 The SquirrelMail Project Team
- * Licensed under the GNU GPL. For full terms see the file COPYING.
- *
- * Delivery backend for the Deliver class.
+ * SMTP delivery backend for the Deliver class.
*
- * $Id$
+ * @copyright © 1999-2007 The SquirrelMail Project Team
+ * @license http://opensource.org/licenses/gpl-license.php GNU Public License
+ * @version $Id$
+ * @package squirrelmail
*/
-require_once('Deliver.class.php');
+/** @ignore */
+if (!defined('SM_PATH')) define('SM_PATH','../../');
+/** This of course depends upon Deliver */
+include_once(SM_PATH . 'class/deliver/Deliver.class.php');
+
+/**
+ * Deliver messages using SMTP
+ * @package squirrelmail
+ */
class Deliver_SMTP extends Deliver {
+ /**
+ * Array keys are uppercased ehlo keywords
+ * array key values are ehlo params. If ehlo-param contains space, it is splitted into array.
+ * @var array ehlo
+ * @since 1.5.1
+ */
+ var $ehlo = array();
+ /**
+ * @var string domain
+ * @since 1.5.1
+ */
+ var $domain = '';
+ /**
+ * SMTP STARTTLS rfc: "Both the client and the server MUST know if there
+ * is a TLS session active."
+ * Variable should be set to true, when encryption is turned on.
+ * @var boolean
+ * @since 1.5.1
+ */
+ var $tls_enabled = false;
+ /**
+ * Private var
+ * var stream $stream
+ * @todo don't pass stream resource in class method arguments.
+ */
+ //var $stream = false;
+ /** @var string delivery error message */
+ var $dlv_msg = '';
+ /** @var integer delivery error number from server */
+ var $dlv_ret_nr = '';
+ /** @var string delivery error message from server */
+ var $dlv_server_msg = '';
function preWriteToStream(&$s) {
- if ($s) {
- if ($s{0} == '.') $s = '.' . $s;
- $s = str_replace("\n.","\n..",$s);
- }
+ if ($s) {
+ if ($s{0} == '.') $s = '.' . $s;
+ $s = str_replace("\n.","\n..",$s);
+ }
}
-
- function initStream($message, $domain, $length=0, $host='', $port='', $user='', $pass='', $authpop=false) {
+
+ function initStream($message, $domain, $length=0, $host='', $port='', $user='', $pass='', $authpop=false, $pop_host='') {
+ global $use_smtp_tls,$smtp_auth_mech;
if ($authpop) {
- $this->authPop($host, '', $user, $pass);
- }
-
- $rfc822_header = $message->rfc822_header;
- $from = $rfc822_header->from[0];
- $to = $rfc822_header->to;
- $cc = $rfc822_header->cc;
- $bcc = $rfc822_header->bcc;
-
- $stream = fsockopen($host, $port, $errorNumber, $errorString);
- if (!$stream) {
- $this->dlv_msg = $errorString;
- $this->dlv_ret_nr = $errorNumber;
- return(0);
- }
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
-
- /* Lets introduce ourselves */
- if (! isset ($use_authenticated_smtp)
- || $use_authenticated_smtp == false) {
- fputs($stream, "HELO $domain\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
+ $this->authPop($pop_host, '', $user, $pass);
+ }
+
+ $rfc822_header = $message->rfc822_header;
+
+ $from = $rfc822_header->from[0];
+ $to = $rfc822_header->to;
+ $cc = $rfc822_header->cc;
+ $bcc = $rfc822_header->bcc;
+ $content_type = $rfc822_header->content_type;
+
+ // MAIL FROM: <from address> MUST be empty in cae of MDN (RFC2298)
+ if ($content_type->type0 == 'multipart' &&
+ $content_type->type1 == 'report' &&
+ isset($content_type->properties['report-type']) &&
+ $content_type->properties['report-type']=='disposition-notification') {
+ // reinitialize the from object because otherwise the from header somehow
+ // is affected. This $from var is used for smtp command MAIL FROM which
+ // is not the same as what we put in the rfc822 header.
+ $from = new AddressStructure();
+ $from->host = '';
+ $from->mailbox = '';
+ }
+
+ if ($use_smtp_tls == 1) {
+ if ((check_php_version(4,3)) && (extension_loaded('openssl'))) {
+ $stream = @fsockopen('tls://' . $host, $port, $errorNumber, $errorString);
+ $this->tls_enabled = true;
+ } else {
+ /**
+ * don't connect to server when user asks for smtps and
+ * PHP does not support it.
+ */
+ $errorNumber = '';
+ $errorString = _("Secure SMTP (TLS) is enabled in SquirrelMail configuration, but used PHP version does not support it.");
+ }
+ } else {
+ $stream = @fsockopen($host, $port, $errorNumber, $errorString);
+ }
+
+ if (!$stream) {
+ // reset tls state var to default value, if connection fails
+ $this->tls_enabled = false;
+ // set error messages
+ $this->dlv_msg = $errorString;
+ $this->dlv_ret_nr = $errorNumber;
+ $this->dlv_server_msg = _("Can't open SMTP stream.");
+ return(0);
+ }
+ // get server greeting
+ $tmp = fgets($stream, 1024);
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
+
+ /*
+ * If $_SERVER['HTTP_HOST'] is set, use that in our HELO to the SMTP
+ * server. This should fix the DNS issues some people have had
+ */
+ if (sqgetGlobalVar('HTTP_HOST', $HTTP_HOST, SQ_SERVER)) { // HTTP_HOST is set
+ // optionally trim off port number
+ if($p = strrpos($HTTP_HOST, ':')) {
+ $HTTP_HOST = substr($HTTP_HOST, 0, $p);
+ }
+ $helohost = $HTTP_HOST;
+ } else { // For some reason, HTTP_HOST is not set - revert to old behavior
+ $helohost = $domain;
+ }
+
+ /* Lets introduce ourselves */
+ fputs($stream, "EHLO $helohost\r\n");
+ // Read ehlo response
+ $tmp = $this->parse_ehlo_response($stream);
+ if ($this->errorCheck($tmp,$stream)) {
+ // fall back to HELO if EHLO is not supported (error 5xx)
+ if ($this->dlv_ret_nr{0} == '5') {
+ fputs($stream, "HELO $helohost\r\n");
+ $tmp = fgets($stream,1024);
+ if ($this->errorCheck($tmp,$stream)) {
+ return(0);
+ }
+ } else {
+ return(0);
+ }
+ }
+
+ /**
+ * Implementing SMTP STARTTLS (rfc2487) in php 5.1.0+
+ * http://www.php.net/stream-socket-enable-crypto
+ */
+ if ($use_smtp_tls === 2) {
+ if (function_exists('stream_socket_enable_crypto')) {
+ // don't try starting tls, when client thinks that it is already active
+ if ($this->tls_enabled) {
+ $this->dlv_msg = _("TLS session is already activated.");
+ return 0;
+ } elseif (!array_key_exists('STARTTLS',$this->ehlo)) {
+ // check for starttls in ehlo response
+ $this->dlv_msg = _("SMTP STARTTLS is enabled in SquirrelMail configuration, but used SMTP server does not support it");
+ return 0;
+ }
+
+ // issue starttls command
+ fputs($stream, "STARTTLS\r\n");
+ // get response
+ $tmp = fgets($stream,1024);
+ if ($this->errorCheck($tmp,$stream)) {
+ return 0;
+ }
+
+ // start crypto on connection. suppress function errors.
+ if (@stream_socket_enable_crypto($stream,true,STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
+ // starttls was successful (rfc2487 5.2 Result of the STARTTLS Command)
+ // get new EHLO response
+ fputs($stream, "EHLO $helohost\r\n");
+ // Read ehlo response
+ $tmp = $this->parse_ehlo_response($stream);
+ if ($this->errorCheck($tmp,$stream)) {
+ // don't revert to helo here. server must support ESMTP
+ return 0;
+ }
+ // set information about started tls
+ $this->tls_enabled = true;
+ } else {
+ /**
+ * stream_socket_enable_crypto() call failed.
+ */
+ $this->dlv_msg = _("Unable to start TLS.");
+ return 0;
+ // Bug: can't get error message. See comments in sqimap_create_stream().
+ }
+ } else {
+ // php install does not support stream_socket_enable_crypto() function
+ $this->dlv_msg = _("SMTP STARTTLS is enabled in SquirrelMail configuration, but used PHP version does not support functions that allow to enable encryption on open socket.");
+ return 0;
+ }
+ }
+
+ // FIXME: check ehlo response before using authentication
+ if (( $smtp_auth_mech == 'cram-md5') or ( $smtp_auth_mech == 'digest-md5' )) {
+ // Doing some form of non-plain auth
+ if ($smtp_auth_mech == 'cram-md5') {
+ fputs($stream, "AUTH CRAM-MD5\r\n");
+ } elseif ($smtp_auth_mech == 'digest-md5') {
+ fputs($stream, "AUTH DIGEST-MD5\r\n");
+ }
+
+ $tmp = fgets($stream,1024);
+
+ if ($this->errorCheck($tmp,$stream)) {
+ return(0);
+ }
+
+ // At this point, $tmp should hold "334 <challenge string>"
+ $chall = substr($tmp,4);
+ // Depending on mechanism, generate response string
+ if ($smtp_auth_mech == 'cram-md5') {
+ $response = cram_md5_response($user,$pass,$chall);
+ } elseif ($smtp_auth_mech == 'digest-md5') {
+ $response = digest_md5_response($user,$pass,$chall,'smtp',$host);
+ }
+ fputs($stream, $response);
+
+ // Let's see what the server had to say about that
+ $tmp = fgets($stream,1024);
+ if ($this->errorCheck($tmp,$stream)) {
+ return(0);
+ }
+
+ // CRAM-MD5 is done at this point. If DIGEST-MD5, there's a bit more to go
+ if ($smtp_auth_mech == 'digest-md5') {
+ // $tmp contains rspauth, but I don't store that yet. (No need yet)
+ fputs($stream,"\r\n");
+ $tmp = fgets($stream,1024);
+
+ if ($this->errorCheck($tmp,$stream)) {
+ return(0);
+ }
+ }
+ // CRAM-MD5 and DIGEST-MD5 code ends here
+ } elseif ($smtp_auth_mech == 'none') {
+ // No auth at all, just send helo and then send the mail
+ // We already said hi earlier, nothing more is needed.
+ } elseif ($smtp_auth_mech == 'login') {
+ // The LOGIN method
+ fputs($stream, "AUTH LOGIN\r\n");
+ $tmp = fgets($stream, 1024);
+
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
+ fputs($stream, base64_encode ($user) . "\r\n");
+ $tmp = fgets($stream, 1024);
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
+
+ fputs($stream, base64_encode($pass) . "\r\n");
+ $tmp = fgets($stream, 1024);
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
+ } elseif ($smtp_auth_mech == "plain") {
+ /* SASL Plain */
+ $auth = base64_encode("$user\0$user\0$pass");
+
+ $query = "AUTH PLAIN\r\n";
+ fputs($stream, $query);
+ $read=fgets($stream, 1024);
+
+ if (substr($read,0,3) == '334') { // OK so far..
+ fputs($stream, "$auth\r\n");
+ $read = fgets($stream, 1024);
+ }
+
+ $results=explode(" ",$read,3);
+ $response=$results[1];
+ $message=$results[2];
} else {
- fputs($stream, "EHLO $domain\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
- fputs($stream, "AUTH LOGIN\r\n");
- $tmp = fgets($stream, 1024);
-
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
- fputs($stream, base64_encode ($user) . "\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
-
- fputs($stream, base64_encode($pass) . "\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
- }
-
- /* Ok, who is sending the message? */
- fputs($stream, 'MAIL FROM: <'.$from->mailbox.'@'.$from->host.">\r\n");
+ /* Right here, they've reached an unsupported auth mechanism.
+ This is the ugliest hack I've ever done, but it'll do till I can fix
+ things up better tomorrow. So tired... */
+ if ($this->errorCheck("535 Unable to use this auth type",$stream)) {
+ return(0);
+ }
+ }
+
+ /* Ok, who is sending the message? */
+ $fromaddress = (strlen($from->mailbox) && $from->host) ?
+ $from->mailbox.'@'.$from->host : '';
+ fputs($stream, 'MAIL FROM:<'.$fromaddress.">\r\n");
$tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
-
- /* send who the recipients are */
- for ($i = 0, $cnt = count($to); $i < $cnt; $i++) {
- if (!$to[$i]->host) $to[$i]->host = $domain;
- fputs($stream, 'RCPT TO: <'.$to[$i]->mailbox.'@'.$to[$i]->host.">\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
- }
- for ($i = 0, $cnt = count($cc); $i < $cnt; $i++) {
- if (!$cc[$i]->host) $cc[$i]->host = $domain;
- fputs($stream, 'RCPT TO: <'.$cc[$i]->mailbox.'@'.$cc[$i]->host.">\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
- }
- for ($i = 0, $cnt = count($bcc); $i < $cnt; $i++) {
- if (!$bcc[$i]->host) $bcc[$i]->host = $domain;
- fputs($stream, 'RCPT TO: <'.$bcc[$i]->mailbox.'@'.$bcc[$i]->host.">\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
}
- /* Lets start sending the actual message */
- fputs($stream, "DATA\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
- return $stream;
+
+ /* send who the recipients are */
+ for ($i = 0, $cnt = count($to); $i < $cnt; $i++) {
+ if (!$to[$i]->host) $to[$i]->host = $domain;
+ if (strlen($to[$i]->mailbox)) {
+ fputs($stream, 'RCPT TO:<'.$to[$i]->mailbox.'@'.$to[$i]->host.">\r\n");
+ $tmp = fgets($stream, 1024);
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
+ }
+ }
+
+ for ($i = 0, $cnt = count($cc); $i < $cnt; $i++) {
+ if (!$cc[$i]->host) $cc[$i]->host = $domain;
+ if (strlen($cc[$i]->mailbox)) {
+ fputs($stream, 'RCPT TO:<'.$cc[$i]->mailbox.'@'.$cc[$i]->host.">\r\n");
+ $tmp = fgets($stream, 1024);
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
+ }
+ }
+
+ for ($i = 0, $cnt = count($bcc); $i < $cnt; $i++) {
+ if (!$bcc[$i]->host) $bcc[$i]->host = $domain;
+ if (strlen($bcc[$i]->mailbox)) {
+ fputs($stream, 'RCPT TO:<'.$bcc[$i]->mailbox.'@'.$bcc[$i]->host.">\r\n");
+ $tmp = fgets($stream, 1024);
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
+ }
+ }
+ /* Lets start sending the actual message */
+ fputs($stream, "DATA\r\n");
+ $tmp = fgets($stream, 1024);
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
+ return $stream;
}
-
+
function finalizeStream($stream) {
- fputs($stream, ".\r\n"); /* end the DATA part */
- $tmp = fgets($stream, 1024);
- $this->errorCheck($tmp, $stream);
- if ($this->dlv_ret_nr != 250) {
- return(0);
- }
- fputs($stream, "QUIT\r\n"); /* log off */
- fclose($stream);
- return true;
+ fputs($stream, "\r\n.\r\n"); /* end the DATA part */
+ $tmp = fgets($stream, 1024);
+ $this->errorCheck($tmp, $stream);
+ if ($this->dlv_ret_nr != 250) {
+ return(0);
+ }
+ fputs($stream, "QUIT\r\n"); /* log off */
+ fclose($stream);
+ return true;
}
-
+
+ /* check if an SMTP reply is an error and set an error message) */
function errorCheck($line, $smtpConnection) {
- global $color, $compose_new_win;
-
- /* Read new lines on a multiline response */
- $lines = $line;
- while(ereg("^[0-9]+-", $line)) {
- $line = fgets($smtpConnection, 1024);
- $lines .= $line;
- }
- /* Status: 0 = fatal
- * 5 = ok
- */
- $err_num = substr($line, 0, strpos($line, " "));
- switch ($err_num) {
- case 500: $message = 'Syntax error; command not recognized';
- $status = 0;
- break;
- case 501: $message = 'Syntax error in parameters or arguments';
- $status = 0;
- break;
- case 502: $message = 'Command not implemented';
- $status = 0;
- break;
- case 503: $message = 'Bad sequence of commands';
- $status = 0;
- break;
- case 504: $message = 'Command parameter not implemented';
- $status = 0;
- break;
- case 211: $message = 'System status, or system help reply';
- $status = 5;
- break;
- case 214: $message = 'Help message';
- $status = 5;
- break;
- case 220: $message = 'Service ready';
- $status = 5;
- break;
- case 221: $message = 'Service closing transmission channel';
- $status = 5;
- break;
- case 421: $message = 'Service not available, closing chanel';
- $status = 0;
- break;
- case 235: return(5);
- break;
- case 250: $message = 'Requested mail action okay, completed';
- $status = 5;
- break;
- case 251: $message = 'User not local; will forward';
- $status = 5;
- break;
- case 334: return(5); break;
- case 450: $message = 'Requested mail action not taken: mailbox unavailable';
- $status = 0;
- break;
- case 550: $message = 'Requested action not taken: mailbox unavailable';
- $status = 0;
- break;
- case 451: $message = 'Requested action aborted: error in processing';
- $status = 0;
- break;
- case 551: $message = 'User not local; please try forwarding';
- $status = 0;
- break;
- case 452: $message = 'Requested action not taken: insufficient system storage';
- $status = 0;
- break;
- case 552: $message = 'Requested mail action aborted: exceeding storage allocation';
- $status = 0;
- break;
- case 553: $message = 'Requested action not taken: mailbox name not allowed';
- $status = 0;
- break;
- case 354: $message = 'Start mail input; end with .';
- $status = 5;
- break;
- case 554: $message = 'Transaction failed';
- $status = 0;
- break;
- /* RFC 2554 */
- case 432: $message = 'A password transition is needed';
- $status = 0;
- break;
- case 534: $message = 'Authentication mechanism is too weak';
- $status = 0;
- break;
- case 538: $message = 'Encryption required for requested authentication mechanism';
- $status = 0;
- break;
- case 454: $message = 'Temmporary authentication failure';
- $status = 0;
- break;
- case 530: $message = 'Authentication required';
- $status = 0;
- break;
- /* end RFC2554 */
- default: $message = 'Unknown response: '. nl2br(htmlspecialchars($lines));
- $status = 0;
- $err_num = '001';
- break;
- }
- $this->dlv_ret_nr = $err_num;
- $this->dlv_msg = $message;
- if ($status == 5) {
- return false;
- }
+
+ $err_num = substr($line, 0, 3);
+ $this->dlv_ret_nr = $err_num;
+ $server_msg = substr($line, 4);
+
+ while(substr($line, 0, 4) == ($err_num.'-')) {
+ $line = fgets($smtpConnection, 1024);
+ $server_msg .= substr($line, 4);
+ }
+
+ if ( ((int) $err_num{0}) < 4) {
+ return false;
+ }
+
+ switch ($err_num) {
+ case '421': $message = _("Service not available, closing channel");
+ break;
+ case '432': $message = _("A password transition is needed");
+ break;
+ case '450': $message = _("Requested mail action not taken: mailbox unavailable");
+ break;
+ case '451': $message = _("Requested action aborted: error in processing");
+ break;
+ case '452': $message = _("Requested action not taken: insufficient system storage");
+ break;
+ case '454': $message = _("Temporary authentication failure");
+ break;
+ case '500': $message = _("Syntax error; command not recognized");
+ break;
+ case '501': $message = _("Syntax error in parameters or arguments");
+ break;
+ case '502': $message = _("Command not implemented");
+ break;
+ case '503': $message = _("Bad sequence of commands");
+ break;
+ case '504': $message = _("Command parameter not implemented");
+ break;
+ case '530': $message = _("Authentication required");
+ break;
+ case '534': $message = _("Authentication mechanism is too weak");
+ break;
+ case '535': $message = _("Authentication failed");
+ break;
+ case '538': $message = _("Encryption required for requested authentication mechanism");
+ break;
+ case '550': $message = _("Requested action not taken: mailbox unavailable");
+ break;
+ case '551': $message = _("User not local; please try forwarding");
+ break;
+ case '552': $message = _("Requested mail action aborted: exceeding storage allocation");
+ break;
+ case '553': $message = _("Requested action not taken: mailbox name not allowed");
+ break;
+ case '554': $message = _("Transaction failed");
+ break;
+ default: $message = _("Unknown response");
+ break;
+ }
+
+ $this->dlv_msg = $message;
+ $this->dlv_server_msg = $server_msg;
+
return true;
}
-
+
function authPop($pop_server='', $pop_port='', $user, $pass) {
if (!$pop_port) {
$pop_port = 110;
if (!$pop_server) {
$pop_server = 'localhost';
}
- $popConnection = fsockopen($pop_server, $pop_port, $err_no, $err_str);
+ $popConnection = @fsockopen($pop_server, $pop_port, $err_no, $err_str);
if (!$popConnection) {
error_log("Error connecting to POP Server ($pop_server:$pop_port)"
- . " $err_no : $err_str");
+ . " $err_no : $err_str");
+ return false;
} else {
$tmp = fgets($popConnection, 1024); /* banner */
- if (!eregi("^\+OK", $tmp, $regs)) {
- return(0);
+ if (substr($tmp, 0, 3) != '+OK') {
+ return false;
}
fputs($popConnection, "USER $user\r\n");
$tmp = fgets($popConnection, 1024);
- if (!eregi("^\+OK", $tmp, $regs)) {
- return(0);
+ if (substr($tmp, 0, 3) != '+OK') {
+ return false;
}
fputs($popConnection, 'PASS ' . $pass . "\r\n");
$tmp = fgets($popConnection, 1024);
- if (!eregi("^\+OK", $tmp, $regs)) {
- return(0);
+ if (substr($tmp, 0, 3) != '+OK') {
+ return false;
}
fputs($popConnection, "QUIT\r\n"); /* log off */
fclose($popConnection);
}
+ return true;
}
-}
-?>
+ /**
+ * Parses ESMTP EHLO response (rfc1869)
+ *
+ * Reads SMTP response to EHLO command and fills class variables
+ * (ehlo array and domain string). Returns last line.
+ * @param stream $stream smtp connection stream.
+ * @return string last ehlo line
+ * @since 1.5.1
+ */
+ function parse_ehlo_response($stream) {
+ // don't cache ehlo information
+ $this->ehlo=array();
+ $ret = '';
+ $firstline = true;
+ /**
+ * ehlo mailclient.example.org
+ * 250-mail.example.org
+ * 250-PIPELINING
+ * 250-SIZE 52428800
+ * 250-DATAZ
+ * 250-STARTTLS
+ * 250-AUTH LOGIN PLAIN
+ * 250 8BITMIME
+ */
+ while ($line=fgets($stream, 1024)){
+ // match[1] = first symbol after 250
+ // match[2] = domain or ehlo-keyword
+ // match[3] = greeting or ehlo-param
+ // match space after keyword in ehlo-keyword CR LF
+ if (preg_match("/^250(-|\s)(\S*)\s+(\S.*)\r\n/",$line,$match)||
+ preg_match("/^250(-|\s)(\S*)\s*\r\n/",$line,$match)) {
+ if ($firstline) {
+ // first ehlo line (250[-\ ]domain SP greeting)
+ $this->domain = $match[2];
+ $firstline=false;
+ } elseif (!isset($match[3])) {
+ // simple one word extension
+ $this->ehlo[strtoupper($match[2])]='';
+ } elseif (!preg_match("/\s/",trim($match[3]))) {
+ // extension with one option
+ // yes, I know about ctype extension. no, i don't want to depend on it
+ $this->ehlo[strtoupper($match[2])]=trim($match[3]);
+ } else {
+ // ehlo-param with spaces
+ $this->ehlo[strtoupper($match[2])]=explode(' ',trim($match[3]));
+ }
+ if ($match[1]==' ') {
+ // stop while cycle, if we reach last 250 line
+ $ret = $line;
+ break;
+ }
+ } else {
+ // this is not 250 response
+ $ret = $line;
+ break;
+ }
+ }
+ return $ret;
+ }
+}
projects / squirrelmail.git / blobdiff