[tt-rss.git] / lib / phpmailer / class.smtp.php

<?php\r
////////////////////////////////////////////////////\r
// SMTP - PHP SMTP class\r
//\r
// Version 1.02\r
//\r
// Define an SMTP class that can be used to connect\r
// and communicate with any SMTP server. It implements\r
// all the SMTP functions defined in RFC821 except TURN.\r
//\r
// Author: Chris Ryan\r
//\r
// License: LGPL, see LICENSE\r
////////////////////////////////////////////////////\r
\r
/**\r
 * SMTP is rfc 821 compliant and implements all the rfc 821 SMTP\r
 * commands except TURN which will always return a not implemented\r
 * error. SMTP also provides some utility methods for sending mail\r
 * to an SMTP server.\r
 * @package PHPMailer\r
 * @author Chris Ryan\r
 */\r
class SMTP\r
{\r
    /**\r
     *  SMTP server port\r
     *  @var int\r
     */\r
    var $SMTP_PORT = 25;\r
    \r
    /**\r
     *  SMTP reply line ending\r
     *  @var string\r
     */\r
    var $CRLF = "\r\n";\r
    \r
    /**\r
     *  Sets whether debugging is turned on\r
     *  @var bool\r
     */\r
    var $do_debug;       # the level of debug to perform\r
\r
    /**#@+\r
     * @access private\r
     */\r
    var $smtp_conn;      # the socket to the server\r
    var $error;          # error if any on the last call\r
    var $helo_rply;      # the reply the server sent to us for HELO\r
    /**#@-*/\r
\r
    /**\r
     * Initialize the class so that the data is in a known state.\r
     * @access public\r
     * @return void\r
     */\r
    function SMTP() {\r
        $this->smtp_conn = 0;\r
        $this->error = null;\r
        $this->helo_rply = null;\r
\r
        $this->do_debug = 0;\r
    }\r
\r
    /*************************************************************\r
     *                    CONNECTION FUNCTIONS                  *\r
     ***********************************************************/\r
\r
    /**\r
     * Connect to the server specified on the port specified.\r
     * If the port is not specified use the default SMTP_PORT.\r
     * If tval is specified then a connection will try and be\r
     * established with the server for that number of seconds.\r
     * If tval is not specified the default is 30 seconds to\r
     * try on the connection.\r
     *\r
     * SMTP CODE SUCCESS: 220\r
     * SMTP CODE FAILURE: 421\r
     * @access public\r
     * @return bool\r
     */\r
    function Connect($host,$port=0,$tval=30) {\r
        # set the error val to null so there is no confusion\r
        $this->error = null;\r
\r
        # make sure we are __not__ connected\r
        if($this->connected()) {\r
            # ok we are connected! what should we do?\r
            # for now we will just give an error saying we\r
            # are already connected\r
            $this->error =\r
                array("error" => "Already connected to a server");\r
            return false;\r
        }\r
\r
        if(empty($port)) {\r
            $port = $this->SMTP_PORT;\r
        }\r
\r
        #connect to the smtp server\r
        $this->smtp_conn = fsockopen($host,    # the host of the server\r
                                     $port,    # the port to use\r
                                     $errno,   # error number if any\r
                                     $errstr,  # error message if any\r
                                     $tval);   # give up after ? secs\r
        # verify we connected properly\r
        if(empty($this->smtp_conn)) {\r
            $this->error = array("error" => "Failed to connect to server",\r
                                 "errno" => $errno,\r
                                 "errstr" => $errstr);\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": $errstr ($errno)" . $this->CRLF;\r
            }\r
            return false;\r
        }\r
\r
        # sometimes the SMTP server takes a little longer to respond\r
        # so we will give it a longer timeout for the first read\r
        // Windows still does not have support for this timeout function\r
        if(substr(PHP_OS, 0, 3) != "WIN")\r
           socket_set_timeout($this->smtp_conn, $tval, 0);\r
\r
        # get any announcement stuff\r
        $announce = $this->get_lines();\r
\r
        # set the timeout  of any socket functions at 1/10 of a second\r
        //if(function_exists("socket_set_timeout"))\r
        //   socket_set_timeout($this->smtp_conn, 0, 100000);\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER:" . $this->CRLF . $announce;\r
        }\r
\r
        return true;\r
    }\r
\r
    /**\r
     * Performs SMTP authentication.  Must be run after running the\r
     * Hello() method.  Returns true if successfully authenticated.\r
     * @access public\r
     * @return bool\r
     */\r
    function Authenticate($username, $password) {\r
        // Start authentication\r
        fputs($this->smtp_conn,"AUTH LOGIN" . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($code != 334) {\r
            $this->error =\r
                array("error" => "AUTH not accepted from server",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
\r
        // Send encoded username\r
        fputs($this->smtp_conn, base64_encode($username) . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($code != 334) {\r
            $this->error =\r
                array("error" => "Username not accepted from server",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
\r
        // Send encoded password\r
        fputs($this->smtp_conn, base64_encode($password) . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($code != 235) {\r
            $this->error =\r
                array("error" => "Password not accepted from server",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
\r
        return true;\r
    }\r
\r
    /**\r
     * Returns true if connected to a server otherwise false\r
     * @access private\r
     * @return bool\r
     */\r
    function Connected() {\r
        if(!empty($this->smtp_conn)) {\r
            $sock_status = socket_get_status($this->smtp_conn);\r
            if($sock_status["eof"]) {\r
                # hmm this is an odd situation... the socket is\r
                # valid but we aren't connected anymore\r
                if($this->do_debug >= 1) {\r
                    echo "SMTP -> NOTICE:" . $this->CRLF .\r
                         "EOF caught while checking if connected";\r
                }\r
                $this->Close();\r
                return false;\r
            }\r
            return true; # everything looks good\r
        }\r
        return false;\r
    }\r
\r
    /**\r
     * Closes the socket and cleans up the state of the class.\r
     * It is not considered good to use this function without\r
     * first trying to use QUIT.\r
     * @access public\r
     * @return void\r
     */\r
    function Close() {\r
        $this->error = null; # so there is no confusion\r
        $this->helo_rply = null;\r
        if(!empty($this->smtp_conn)) {\r
            # close the connection and cleanup\r
            fclose($this->smtp_conn);\r
            $this->smtp_conn = 0;\r
        }\r
    }\r
\r
\r
    /***************************************************************\r
     *                        SMTP COMMANDS                       *\r
     *************************************************************/\r
\r
    /**\r
     * Issues a data command and sends the msg_data to the server\r
     * finializing the mail transaction. $msg_data is the message\r
     * that is to be send with the headers. Each header needs to be\r
     * on a single line followed by a <CRLF> with the message headers\r
     * and the message body being seperated by and additional <CRLF>.\r
     *\r
     * Implements rfc 821: DATA <CRLF>\r
     *\r
     * SMTP CODE INTERMEDIATE: 354\r
     *     [data]\r
     *     <CRLF>.<CRLF>\r
     *     SMTP CODE SUCCESS: 250\r
     *     SMTP CODE FAILURE: 552,554,451,452\r
     * SMTP CODE FAILURE: 451,554\r
     * SMTP CODE ERROR  : 500,501,503,421\r
     * @access public\r
     * @return bool\r
     */\r
    function Data($msg_data) {\r
        $this->error = null; # so no confusion is caused\r
\r
        if(!$this->connected()) {\r
            $this->error = array(\r
                    "error" => "Called Data() without being connected");\r
            return false;\r
        }\r
\r
        fputs($this->smtp_conn,"DATA" . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;\r
        }\r
\r
        if($code != 354) {\r
            $this->error =\r
                array("error" => "DATA command not accepted from server",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
\r
        # the server is ready to accept data!\r
        # according to rfc 821 we should not send more than 1000\r
        # including the CRLF\r
        # characters on a single line so we will break the data up\r
        # into lines by \r and/or \n then if needed we will break\r
        # each of those into smaller lines to fit within the limit.\r
        # in addition we will be looking for lines that start with\r
        # a period '.' and append and additional period '.' to that\r
        # line. NOTE: this does not count towards are limit.\r
\r
        # normalize the line breaks so we know the explode works\r
        $msg_data = str_replace("\r\n","\n",$msg_data);\r
        $msg_data = str_replace("\r","\n",$msg_data);\r
        $lines = explode("\n",$msg_data);\r
\r
        # we need to find a good way to determine is headers are\r
        # in the msg_data or if it is a straight msg body\r
        # currently I'm assuming rfc 822 definitions of msg headers\r
        # and if the first field of the first line (':' sperated)\r
        # does not contain a space then it _should_ be a header\r
        # and we can process all lines before a blank "" line as\r
        # headers.\r
        $field = substr($lines[0],0,strpos($lines[0],":"));\r
        $in_headers = false;\r
        if(!empty($field) && !strstr($field," ")) {\r
            $in_headers = true;\r
        }\r
\r
        $max_line_length = 998; # used below; set here for ease in change\r
\r
        while(list(,$line) = @each($lines)) {\r
            $lines_out = null;\r
            if($line == "" && $in_headers) {\r
                $in_headers = false;\r
            }\r
            # ok we need to break this line up into several\r
            # smaller lines\r
            while(strlen($line) > $max_line_length) {\r
                $pos = strrpos(substr($line,0,$max_line_length)," ");\r
\r
                # Patch to fix DOS attack\r
                if(!$pos) {\r
                    $pos = $max_line_length - 1;\r
                }\r
\r
                $lines_out[] = substr($line,0,$pos);\r
                $line = substr($line,$pos + 1);\r
                # if we are processing headers we need to\r
                # add a LWSP-char to the front of the new line\r
                # rfc 822 on long msg headers\r
                if($in_headers) {\r
                    $line = "\t" . $line;\r
                }\r
            }\r
            $lines_out[] = $line;\r
\r
            # now send the lines to the server\r
            while(list(,$line_out) = @each($lines_out)) {\r
                if(strlen($line_out) > 0)\r
                {\r
                    if(substr($line_out, 0, 1) == ".") {\r
                        $line_out = "." . $line_out;\r
                    }\r
                }\r
                fputs($this->smtp_conn,$line_out . $this->CRLF);\r
            }\r
        }\r
\r
        # ok all the message data has been sent so lets get this\r
        # over with aleady\r
        fputs($this->smtp_conn, $this->CRLF . "." . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;\r
        }\r
\r
        if($code != 250) {\r
            $this->error =\r
                array("error" => "DATA not accepted from server",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
        return true;\r
    }\r
\r
    /**\r
     * Expand takes the name and asks the server to list all the\r
     * people who are members of the _list_. Expand will return\r
     * back and array of the result or false if an error occurs.\r
     * Each value in the array returned has the format of:\r
     *     [ <full-name> <sp> ] <path>\r
     * The definition of <path> is defined in rfc 821\r
     *\r
     * Implements rfc 821: EXPN <SP> <string> <CRLF>\r
     *\r
     * SMTP CODE SUCCESS: 250\r
     * SMTP CODE FAILURE: 550\r
     * SMTP CODE ERROR  : 500,501,502,504,421\r
     * @access public\r
     * @return string array\r
     */\r
    function Expand($name) {\r
        $this->error = null; # so no confusion is caused\r
\r
        if(!$this->connected()) {\r
            $this->error = array(\r
                    "error" => "Called Expand() without being connected");\r
            return false;\r
        }\r
\r
        fputs($this->smtp_conn,"EXPN " . $name . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;\r
        }\r
\r
        if($code != 250) {\r
            $this->error =\r
                array("error" => "EXPN not accepted from server",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
\r
        # parse the reply and place in our array to return to user\r
        $entries = explode($this->CRLF,$rply);\r
        while(list(,$l) = @each($entries)) {\r
            $list[] = substr($l,4);\r
        }\r
\r
        return $list;\r
    }\r
\r
    /**\r
     * Sends the HELO command to the smtp server.\r
     * This makes sure that we and the server are in\r
     * the same known state.\r
     *\r
     * Implements from rfc 821: HELO <SP> <domain> <CRLF>\r
     *\r
     * SMTP CODE SUCCESS: 250\r
     * SMTP CODE ERROR  : 500, 501, 504, 421\r
     * @access public\r
     * @return bool\r
     */\r
    function Hello($host="") {\r
        $this->error = null; # so no confusion is caused\r
\r
        if(!$this->connected()) {\r
            $this->error = array(\r
                    "error" => "Called Hello() without being connected");\r
            return false;\r
        }\r
\r
        # if a hostname for the HELO wasn't specified determine\r
        # a suitable one to send\r
        if(empty($host)) {\r
            # we need to determine some sort of appopiate default\r
            # to send to the server\r
            $host = "localhost";\r
        }\r
\r
        // Send extended hello first (RFC 2821)\r
        if(!$this->SendHello("EHLO", $host))\r
        {\r
            if(!$this->SendHello("HELO", $host))\r
                return false;\r
        }\r
\r
        return true;\r
    }\r
\r
    /**\r
     * Sends a HELO/EHLO command.\r
     * @access private\r
     * @return bool\r
     */\r
    function SendHello($hello, $host) {\r
        fputs($this->smtp_conn, $hello . " " . $host . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER: " . $this->CRLF . $rply;\r
        }\r
\r
        if($code != 250) {\r
            $this->error =\r
                array("error" => $hello . " not accepted from server",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
\r
        $this->helo_rply = $rply;\r
        \r
        return true;\r
    }\r
\r
    /**\r
     * Gets help information on the keyword specified. If the keyword\r
     * is not specified then returns generic help, ussually contianing\r
     * A list of keywords that help is available on. This function\r
     * returns the results back to the user. It is up to the user to\r
     * handle the returned data. If an error occurs then false is\r
     * returned with $this->error set appropiately.\r
     *\r
     * Implements rfc 821: HELP [ <SP> <string> ] <CRLF>\r
     *\r
     * SMTP CODE SUCCESS: 211,214\r
     * SMTP CODE ERROR  : 500,501,502,504,421\r
     * @access public\r
     * @return string\r
     */\r
    function Help($keyword="") {\r
        $this->error = null; # to avoid confusion\r
\r
        if(!$this->connected()) {\r
            $this->error = array(\r
                    "error" => "Called Help() without being connected");\r
            return false;\r
        }\r
\r
        $extra = "";\r
        if(!empty($keyword)) {\r
            $extra = " " . $keyword;\r
        }\r
\r
        fputs($this->smtp_conn,"HELP" . $extra . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;\r
        }\r
\r
        if($code != 211 && $code != 214) {\r
            $this->error =\r
                array("error" => "HELP not accepted from server",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
\r
        return $rply;\r
    }\r
\r
    /**\r
     * Starts a mail transaction from the email address specified in\r
     * $from. Returns true if successful or false otherwise. If True\r
     * the mail transaction is started and then one or more Recipient\r
     * commands may be called followed by a Data command.\r
     *\r
     * Implements rfc 821: MAIL <SP> FROM:<reverse-path> <CRLF>\r
     *\r
     * SMTP CODE SUCCESS: 250\r
     * SMTP CODE SUCCESS: 552,451,452\r
     * SMTP CODE SUCCESS: 500,501,421\r
     * @access public\r
     * @return bool\r
     */\r
    function Mail($from) {\r
        $this->error = null; # so no confusion is caused\r
\r
        if(!$this->connected()) {\r
            $this->error = array(\r
                    "error" => "Called Mail() without being connected");\r
            return false;\r
        }\r
\r
        fputs($this->smtp_conn,"MAIL FROM:<" . $from . ">" . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;\r
        }\r
\r
        if($code != 250) {\r
            $this->error =\r
                array("error" => "MAIL not accepted from server",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
        return true;\r
    }\r
\r
    /**\r
     * Sends the command NOOP to the SMTP server.\r
     *\r
     * Implements from rfc 821: NOOP <CRLF>\r
     *\r
     * SMTP CODE SUCCESS: 250\r
     * SMTP CODE ERROR  : 500, 421\r
     * @access public\r
     * @return bool\r
     */\r
    function Noop() {\r
        $this->error = null; # so no confusion is caused\r
\r
        if(!$this->connected()) {\r
            $this->error = array(\r
                    "error" => "Called Noop() without being connected");\r
            return false;\r
        }\r
\r
        fputs($this->smtp_conn,"NOOP" . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;\r
        }\r
\r
        if($code != 250) {\r
            $this->error =\r
                array("error" => "NOOP not accepted from server",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
        return true;\r
    }\r
\r
    /**\r
     * Sends the quit command to the server and then closes the socket\r
     * if there is no error or the $close_on_error argument is true.\r
     *\r
     * Implements from rfc 821: QUIT <CRLF>\r
     *\r
     * SMTP CODE SUCCESS: 221\r
     * SMTP CODE ERROR  : 500\r
     * @access public\r
     * @return bool\r
     */\r
    function Quit($close_on_error=true) {\r
        $this->error = null; # so there is no confusion\r
\r
        if(!$this->connected()) {\r
            $this->error = array(\r
                    "error" => "Called Quit() without being connected");\r
            return false;\r
        }\r
\r
        # send the quit command to the server\r
        fputs($this->smtp_conn,"quit" . $this->CRLF);\r
\r
        # get any good-bye messages\r
        $byemsg = $this->get_lines();\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER:" . $this->CRLF . $byemsg;\r
        }\r
\r
        $rval = true;\r
        $e = null;\r
\r
        $code = substr($byemsg,0,3);\r
        if($code != 221) {\r
            # use e as a tmp var cause Close will overwrite $this->error\r
            $e = array("error" => "SMTP server rejected quit command",\r
                       "smtp_code" => $code,\r
                       "smtp_rply" => substr($byemsg,4));\r
            $rval = false;\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $e["error"] . ": " .\r
                         $byemsg . $this->CRLF;\r
            }\r
        }\r
\r
        if(empty($e) || $close_on_error) {\r
            $this->Close();\r
        }\r
\r
        return $rval;\r
    }\r
\r
    /**\r
     * Sends the command RCPT to the SMTP server with the TO: argument of $to.\r
     * Returns true if the recipient was accepted false if it was rejected.\r
     *\r
     * Implements from rfc 821: RCPT <SP> TO:<forward-path> <CRLF>\r
     *\r
     * SMTP CODE SUCCESS: 250,251\r
     * SMTP CODE FAILURE: 550,551,552,553,450,451,452\r
     * SMTP CODE ERROR  : 500,501,503,421\r
     * @access public\r
     * @return bool\r
     */\r
    function Recipient($to) {\r
        $this->error = null; # so no confusion is caused\r
\r
        if(!$this->connected()) {\r
            $this->error = array(\r
                    "error" => "Called Recipient() without being connected");\r
            return false;\r
        }\r
\r
        fputs($this->smtp_conn,"RCPT TO:<" . $to . ">" . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;\r
        }\r
\r
        if($code != 250 && $code != 251) {\r
            $this->error =\r
                array("error" => "RCPT not accepted from server",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
        return true;\r
    }\r
\r
    /**\r
     * Sends the RSET command to abort and transaction that is\r
     * currently in progress. Returns true if successful false\r
     * otherwise.\r
     *\r
     * Implements rfc 821: RSET <CRLF>\r
     *\r
     * SMTP CODE SUCCESS: 250\r
     * SMTP CODE ERROR  : 500,501,504,421\r
     * @access public\r
     * @return bool\r
     */\r
    function Reset() {\r
        $this->error = null; # so no confusion is caused\r
\r
        if(!$this->connected()) {\r
            $this->error = array(\r
                    "error" => "Called Reset() without being connected");\r
            return false;\r
        }\r
\r
        fputs($this->smtp_conn,"RSET" . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;\r
        }\r
\r
        if($code != 250) {\r
            $this->error =\r
                array("error" => "RSET failed",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
\r
        return true;\r
    }\r
\r
    /**\r
     * Starts a mail transaction from the email address specified in\r
     * $from. Returns true if successful or false otherwise. If True\r
     * the mail transaction is started and then one or more Recipient\r
     * commands may be called followed by a Data command. This command\r
     * will send the message to the users terminal if they are logged\r
     * in.\r
     *\r
     * Implements rfc 821: SEND <SP> FROM:<reverse-path> <CRLF>\r
     *\r
     * SMTP CODE SUCCESS: 250\r
     * SMTP CODE SUCCESS: 552,451,452\r
     * SMTP CODE SUCCESS: 500,501,502,421\r
     * @access public\r
     * @return bool\r
     */\r
    function Send($from) {\r
        $this->error = null; # so no confusion is caused\r
\r
        if(!$this->connected()) {\r
            $this->error = array(\r
                    "error" => "Called Send() without being connected");\r
            return false;\r
        }\r
\r
        fputs($this->smtp_conn,"SEND FROM:" . $from . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;\r
        }\r
\r
        if($code != 250) {\r
            $this->error =\r
                array("error" => "SEND not accepted from server",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
        return true;\r
    }\r
\r
    /**\r
     * Starts a mail transaction from the email address specified in\r
     * $from. Returns true if successful or false otherwise. If True\r
     * the mail transaction is started and then one or more Recipient\r
     * commands may be called followed by a Data command. This command\r
     * will send the message to the users terminal if they are logged\r
     * in and send them an email.\r
     *\r
     * Implements rfc 821: SAML <SP> FROM:<reverse-path> <CRLF>\r
     *\r
     * SMTP CODE SUCCESS: 250\r
     * SMTP CODE SUCCESS: 552,451,452\r
     * SMTP CODE SUCCESS: 500,501,502,421\r
     * @access public\r
     * @return bool\r
     */\r
    function SendAndMail($from) {\r
        $this->error = null; # so no confusion is caused\r
\r
        if(!$this->connected()) {\r
            $this->error = array(\r
                "error" => "Called SendAndMail() without being connected");\r
            return false;\r
        }\r
\r
        fputs($this->smtp_conn,"SAML FROM:" . $from . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;\r
        }\r
\r
        if($code != 250) {\r
            $this->error =\r
                array("error" => "SAML not accepted from server",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
        return true;\r
    }\r
\r
    /**\r
     * Starts a mail transaction from the email address specified in\r
     * $from. Returns true if successful or false otherwise. If True\r
     * the mail transaction is started and then one or more Recipient\r
     * commands may be called followed by a Data command. This command\r
     * will send the message to the users terminal if they are logged\r
     * in or mail it to them if they are not.\r
     *\r
     * Implements rfc 821: SOML <SP> FROM:<reverse-path> <CRLF>\r
     *\r
     * SMTP CODE SUCCESS: 250\r
     * SMTP CODE SUCCESS: 552,451,452\r
     * SMTP CODE SUCCESS: 500,501,502,421\r
     * @access public\r
     * @return bool\r
     */\r
    function SendOrMail($from) {\r
        $this->error = null; # so no confusion is caused\r
\r
        if(!$this->connected()) {\r
            $this->error = array(\r
                "error" => "Called SendOrMail() without being connected");\r
            return false;\r
        }\r
\r
        fputs($this->smtp_conn,"SOML FROM:" . $from . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;\r
        }\r
\r
        if($code != 250) {\r
            $this->error =\r
                array("error" => "SOML not accepted from server",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
        return true;\r
    }\r
\r
    /**\r
     * This is an optional command for SMTP that this class does not\r
     * support. This method is here to make the RFC821 Definition\r
     * complete for this class and __may__ be implimented in the future\r
     *\r
     * Implements from rfc 821: TURN <CRLF>\r
     *\r
     * SMTP CODE SUCCESS: 250\r
     * SMTP CODE FAILURE: 502\r
     * SMTP CODE ERROR  : 500, 503\r
     * @access public\r
     * @return bool\r
     */\r
    function Turn() {\r
        $this->error = array("error" => "This method, TURN, of the SMTP ".\r
                                        "is not implemented");\r
        if($this->do_debug >= 1) {\r
            echo "SMTP -> NOTICE: " . $this->error["error"] . $this->CRLF;\r
        }\r
        return false;\r
    }\r
\r
    /**\r
     * Verifies that the name is recognized by the server.\r
     * Returns false if the name could not be verified otherwise\r
     * the response from the server is returned.\r
     *\r
     * Implements rfc 821: VRFY <SP> <string> <CRLF>\r
     *\r
     * SMTP CODE SUCCESS: 250,251\r
     * SMTP CODE FAILURE: 550,551,553\r
     * SMTP CODE ERROR  : 500,501,502,421\r
     * @access public\r
     * @return int\r
     */\r
    function Verify($name) {\r
        $this->error = null; # so no confusion is caused\r
\r
        if(!$this->connected()) {\r
            $this->error = array(\r
                    "error" => "Called Verify() without being connected");\r
            return false;\r
        }\r
\r
        fputs($this->smtp_conn,"VRFY " . $name . $this->CRLF);\r
\r
        $rply = $this->get_lines();\r
        $code = substr($rply,0,3);\r
\r
        if($this->do_debug >= 2) {\r
            echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;\r
        }\r
\r
        if($code != 250 && $code != 251) {\r
            $this->error =\r
                array("error" => "VRFY failed on name '$name'",\r
                      "smtp_code" => $code,\r
                      "smtp_msg" => substr($rply,4));\r
            if($this->do_debug >= 1) {\r
                echo "SMTP -> ERROR: " . $this->error["error"] .\r
                         ": " . $rply . $this->CRLF;\r
            }\r
            return false;\r
        }\r
        return $rply;\r
    }\r
\r
    /*******************************************************************\r
     *                       INTERNAL FUNCTIONS                       *\r
     ******************************************************************/\r
\r
    /**\r
     * Read in as many lines as possible\r
     * either before eof or socket timeout occurs on the operation.\r
     * With SMTP we can tell if we have more lines to read if the\r
     * 4th character is '-' symbol. If it is a space then we don't\r
     * need to read anything else.\r
     * @access private\r
     * @return string\r
     */\r
    function get_lines() {\r
        $data = "";\r
        while($str = fgets($this->smtp_conn,515)) {\r
            if($this->do_debug >= 4) {\r
                echo "SMTP -> get_lines(): \$data was \"$data\"" .\r
                         $this->CRLF;\r
                echo "SMTP -> get_lines(): \$str is \"$str\"" .\r
                         $this->CRLF;\r
            }\r
            $data .= $str;\r
            if($this->do_debug >= 4) {\r
                echo "SMTP -> get_lines(): \$data is \"$data\"" . $this->CRLF;\r
            }\r
            # if the 4th character is a space then we are done reading\r
            # so just break the loop\r
            if(substr($str,3,1) == " ") { break; }\r
        }\r
        return $data;\r
    }\r
\r
}\r
\r
\r
 ?>\r