* pass - Password for authentication Default: * timeout - The timeout in seconds for the call Default: 5 * to fsockopen() */ function smtp($params = array()){ if(!defined('CRLF')) define('CRLF', "\r\n", TRUE); $this->authenticated = FALSE; $this->timeout = 5; $this->status = SMTP_STATUS_NOT_CONNECTED; $this->host = 'localhost'; $this->port = 25; $this->helo = 'localhost'; $this->auth = FALSE; $this->user = ''; $this->pass = ''; $this->errors = array(); foreach($params as $key => $value){ $this->$key = $value; } } /** * Connect function. This will, when called * statically, create a new smtp object, * call the connect function (ie this function) * and return it. When not called statically, * it will connect to the server and send * the HELO command. */ function &connect($params = array()){ if(!isset($this->status)){ $obj = new smtp($params); if($obj->connect()){ $obj->status = SMTP_STATUS_CONNECTED; } return $obj; }else{ $this->connection = fsockopen($this->host, $this->port, $errno, $errstr, $this->timeout); if(function_exists('socket_set_timeout')){ @socket_set_timeout($this->connection, 5, 0); } $greeting = $this->get_data(); if(is_resource($this->connection)){ return $this->auth ? $this->ehlo() : $this->helo(); }else{ $this->errors[] = 'Failed to connect to server: '.$errstr; return FALSE; } } } /** * Function which handles sending the mail. * Arguments: * $params - Optional assoc array of parameters. * Can contain: * recipients - Indexed array of recipients * from - The from address. (used in MAIL FROM:), * this will be the return path * headers - Indexed array of headers, one header per array entry * body - The body of the email * It can also contain any of the parameters from the connect() * function */ function send($params = array()){ foreach($params as $key => $value){ $this->set($key, $value); } if($this->is_connected()){ // Do we auth or not? Note the distinction between the auth variable and auth() function if($this->auth AND !$this->authenticated){ if(!$this->auth()) return FALSE; } $this->mail($this->from); if(is_array($this->recipients)) foreach($this->recipients as $value) $this->rcpt($value); else $this->rcpt($this->recipients); if(!$this->data()) return FALSE; // Transparency $headers = str_replace(CRLF.'.', CRLF.'..', trim(implode(CRLF, $this->headers))); $body = str_replace(CRLF.'.', CRLF.'..', $this->body); $body = $body[0] == '.' ? '.'.$body : $body; $this->send_data($headers); $this->send_data(''); $this->send_data($body); $this->send_data('.'); $result = (substr(trim($this->get_data()), 0, 3) === '250'); //$this->rset(); return $result; }else{ $this->errors[] = 'Not connected!'; return FALSE; } } /** * Function to implement HELO cmd */ function helo(){ if(is_resource($this->connection) AND $this->send_data('HELO '.$this->helo) AND substr(trim($error = $this->get_data()), 0, 3) === '250' ){ return TRUE; }else{ $this->errors[] = 'HELO command failed, output: ' . trim(substr(trim($error),3)); return FALSE; } } /** * Function to implement EHLO cmd */ function ehlo(){ if(is_resource($this->connection) AND $this->send_data('EHLO '.$this->helo) AND substr(trim($error = $this->get_data()), 0, 3) === '250' ){ return TRUE; }else{ $this->errors[] = 'EHLO command failed, output: ' . trim(substr(trim($error),3)); return FALSE; } } /** * Function to implement RSET cmd */ function rset(){ if(is_resource($this->connection) AND $this->send_data('RSET') AND substr(trim($error = $this->get_data()), 0, 3) === '250' ){ return TRUE; }else{ $this->errors[] = 'RSET command failed, output: ' . trim(substr(trim($error),3)); return FALSE; } } /** * Function to implement QUIT cmd */ function quit(){ if(is_resource($this->connection) AND $this->send_data('QUIT') AND substr(trim($error = $this->get_data()), 0, 3) === '221' ){ fclose($this->connection); $this->status = SMTP_STATUS_NOT_CONNECTED; return TRUE; }else{ $this->errors[] = 'QUIT command failed, output: ' . trim(substr(trim($error),3)); return FALSE; } } /** * Function to implement AUTH cmd */ function auth(){ if(is_resource($this->connection) AND $this->send_data('AUTH LOGIN') AND substr(trim($error = $this->get_data()), 0, 3) === '334' AND $this->send_data(base64_encode($this->user)) // Send username AND substr(trim($error = $this->get_data()),0,3) === '334' AND $this->send_data(base64_encode($this->pass)) // Send password AND substr(trim($error = $this->get_data()),0,3) === '235' ){ $this->authenticated = TRUE; return TRUE; }else{ $this->errors[] = 'AUTH command failed: ' . trim(substr(trim($error),3)); return FALSE; } } /** * Function that handles the MAIL FROM: cmd */ function mail($from){ if($this->is_connected() AND $this->send_data('MAIL FROM:<'.$from.'>') AND substr(trim($this->get_data()), 0, 2) === '250' ){ return TRUE; }else return FALSE; } /** * Function that handles the RCPT TO: cmd */ function rcpt($to){ if($this->is_connected() AND $this->send_data('RCPT TO:<'.$to.'>') AND substr(trim($error = $this->get_data()), 0, 2) === '25' ){ return TRUE; }else{ $this->errors[] = trim(substr(trim($error), 3)); return FALSE; } } /** * Function that sends the DATA cmd */ function data(){ if($this->is_connected() AND $this->send_data('DATA') AND substr(trim($error = $this->get_data()), 0, 3) === '354' ){ return TRUE; }else{ $this->errors[] = trim(substr(trim($error), 3)); return FALSE; } } /** * Function to determine if this object * is connected to the server or not. */ function is_connected(){ return (is_resource($this->connection) AND ($this->status === SMTP_STATUS_CONNECTED)); } /** * Function to send a bit of data */ function send_data($data){ if(is_resource($this->connection)){ return fwrite($this->connection, $data.CRLF, strlen($data)+2); }else return FALSE; } /** * Function to get data. */ function &get_data(){ $return = ''; $line = ''; $loops = 0; if(is_resource($this->connection)){ while((strpos($return, CRLF) === FALSE OR substr($line,3,1) !== ' ') AND $loops < 100){ $line = fgets($this->connection, 512); $return .= $line; $loops++; } return $return; }else return FALSE; } /** * Sets a variable */ function set($var, $value){ $this->$var = $value; return TRUE; } } // End of class ?>