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- <?php
-
-
-
-
- class POP3
- {
-
-
- public $Version = '5.2.7';
-
-
-
- public $POP3_PORT = 110;
-
-
-
- public $POP3_TIMEOUT = 30;
-
-
-
- public $CRLF = "\r\n";
-
-
-
- public $do_debug = 0;
-
-
-
- public $host;
-
-
-
- public $port;
-
-
-
- public $tval;
-
-
-
- public $username;
-
-
-
- public $password;
-
-
-
- private $pop_conn;
-
-
-
- private $connected;
-
-
-
- private $error;
-
-
-
- const CRLF = "\r\n";
-
-
-
- public function __construct()
- {
- $this->pop_conn = 0;
- $this->connected = false;
- $this->error = null;
- }
-
-
-
- public static function popBeforeSmtp(
- $host,
- $port = false,
- $tval = false,
- $username = '',
- $password = '',
- $debug_level = 0
- ) {
- $pop = new POP3;
- return $pop->authorise($host, $port, $tval, $username, $password, $debug_level);
- }
-
-
-
- public function authorise($host, $port = false, $tval = false, $username = '', $password = '', $debug_level = 0)
- {
- $this->host = $host;
-
- if ($port === false) {
- $this->port = $this->POP3_PORT;
- } else {
- $this->port = $port;
- }
-
- if ($tval === false) {
- $this->tval = $this->POP3_TIMEOUT;
- } else {
- $this->tval = $tval;
- }
- $this->do_debug = $debug_level;
- $this->username = $username;
- $this->password = $password;
-
- $this->error = null;
-
- $result = $this->connect($this->host, $this->port, $this->tval);
- if ($result) {
- $login_result = $this->login($this->username, $this->password);
- if ($login_result) {
- $this->disconnect();
- return true;
- }
- }
-
- $this->disconnect();
- return false;
- }
-
-
-
- public function connect($host, $port = false, $tval = 30)
- {
-
- if ($this->connected) {
- return true;
- }
-
-
-
- set_error_handler(array($this, 'catchWarning'));
-
-
- $this->pop_conn = fsockopen(
- $host,
- $port,
- $errno,
- $errstr,
- $tval
- );
-
- restore_error_handler();
-
- if ($this->error && $this->do_debug >= 1) {
- $this->displayErrors();
- }
-
- if ($this->pop_conn == false) {
-
- $this->error = array(
- 'error' => "Failed to connect to server $host on port $port",
- 'errno' => $errno,
- 'errstr' => $errstr
- );
- if ($this->do_debug >= 1) {
- $this->displayErrors();
- }
- return false;
- }
-
-
-
- if (version_compare(phpversion(), '5.0.0', 'ge')) {
- stream_set_timeout($this->pop_conn, $tval, 0);
- } else {
-
- if (substr(PHP_OS, 0, 3) !== 'WIN') {
- socket_set_timeout($this->pop_conn, $tval, 0);
- }
- }
-
-
- $pop3_response = $this->getResponse();
-
- if ($this->checkResponse($pop3_response)) {
-
- $this->connected = true;
- return true;
- }
- return false;
- }
-
-
-
- public function login($username = '', $password = '')
- {
- if ($this->connected == false) {
- $this->error = 'Not connected to POP3 server';
-
- if ($this->do_debug >= 1) {
- $this->displayErrors();
- }
- }
- if (empty($username)) {
- $username = $this->username;
- }
- if (empty($password)) {
- $password = $this->password;
- }
-
-
- $this->sendString("USER $username" . self::CRLF);
- $pop3_response = $this->getResponse();
- if ($this->checkResponse($pop3_response)) {
-
- $this->sendString("PASS $password" . self::CRLF);
- $pop3_response = $this->getResponse();
- if ($this->checkResponse($pop3_response)) {
- return true;
- }
- }
- return false;
- }
-
-
-
- public function disconnect()
- {
- $this->sendString('QUIT');
-
-
- @fclose($this->pop_conn);
- }
-
-
-
- private function getResponse($size = 128)
- {
- $r = fgets($this->pop_conn, $size);
- if ($this->do_debug >= 1) {
- echo "Server -> Client: $r";
- }
- return $r;
- }
-
-
-
- private function sendString($string)
- {
- if ($this->pop_conn) {
- if ($this->do_debug >= 2) {
- echo "Client -> Server: $string";
- }
- return fwrite($this->pop_conn, $string, strlen($string));
- }
- return 0;
- }
-
-
-
- private function checkResponse($string)
- {
- if (substr($string, 0, 3) !== '+OK') {
- $this->error = array(
- 'error' => "Server reported an error: $string",
- 'errno' => 0,
- 'errstr' => ''
- );
- if ($this->do_debug >= 1) {
- $this->displayErrors();
- }
- return false;
- } else {
- return true;
- }
- }
-
-
-
- private function displayErrors()
- {
- echo '<pre>';
- foreach ($this->error as $single_error) {
- print_r($single_error);
- }
- echo '</pre>';
- }
-
-
-
- private function catchWarning($errno, $errstr, $errfile, $errline)
- {
- $this->error[] = array(
- 'error' => "Connecting to the POP3 server raised a PHP warning: ",
- 'errno' => $errno,
- 'errstr' => $errstr,
- 'errfile' => $errfile,
- 'errline' => $errline
- );
- }
- }
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