*
* @author Roland Haeder <webmaster@ship-simu.org>
* @version 0.0.0
- * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2011 Core Developer Team
+ * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2012 Core Developer Team
* @license GNU GPL 3.0 or any newer version
* @link http://www.ship-simu.org
*
*/
protected function resolveIpAddress ($hostname) {
// Debug message
- $this->debugOutput(sprintf("[%s:] Our host name is: <span class=\"data\">%s</span>",
+ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:] Host name to resolve is: %s',
$this->__toString(),
$hostname
));
$ip = $ipResolved;
// Debug message
- $this->debugOutput(sprintf("[%s:] Resolved IP address is: <span class=\"data\">%s</span>\n",
+ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:] Resolved IP address is: %s',
$this->__toString(),
$ip
));
} else {
// Problem while resolving IP address
- $this->debugOutput(sprintf("[%s:] Problem resolving IP address for host <span class=\"data\">%s</span>. Please check your /etc/hosts file.",
+ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:] Problem resolving IP address for host %s. Please check your /etc/hosts file.',
$this->__toString(),
$hostname
));
return $ip;
}
+ /**
+ * Checks wether proxy configuration is used
+ *
+ * @return $isUsed Wether proxy is used
+ */
+ protected function isProxyUsed () {
+ // Do we have cache?
+ if (!isset($GLOBALS[__METHOD__])) {
+ // Determine it
+ $GLOBALS[__METHOD__] = (($this->getConfigInstance()->getConfigEntry('proxy_host') != '') && ($this->getConfigInstance()->getConfigEntry('proxy_port') > 0));
+ } // END - if
+
+ // Return cache
+ return $GLOBALS[__METHOD__];
+ }
+
+ /**
+ * Sets up a proxy tunnel for given hostname and through resource
+ *
+ * @param $host Host to connect to
+ * @param $port Port number to connect to
+ * @param $socketResource Resource of a socket
+ * @return $response Response array
+ */
+ protected function setupProxyTunnel ($host, $port, $socketResource) {
+ // Initialize array
+ $response = array('', '', '');
+ $proxyTunnel = '';
+
+ // Generate CONNECT request header
+ $proxyTunnel .= 'CONNECT ' . $host . ':' . $port . ' HTTP/1.1' . self::HTTP_EOL;
+ $proxyTunnel .= 'Host: ' . $host . ':' . $port . self::HTTP_EOL;
+ $proxyTunnel .= 'Proxy-Connection: Keep-Alive' . self::HTTP_EOL;
+
+ // Use login data to proxy? (username at least!)
+ if ($this->getConfigInstance()->getConfigEntry('proxy_username') != '') {
+ // Add it as well
+ $encodedAuth = base64_encode($this->getConfigInstance()->getConfigEntry('proxy_username') . ':' . $this->getConfigInstance()->getConfigEntry('proxy_password'));
+ $proxyTunnel .= 'Proxy-Authorization: Basic ' . $encodedAuth . self::HTTP_EOL;
+ } // END - if
+
+ // Add last new-line
+ $proxyTunnel .= self::HTTP_EOL;
+ //* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('CONSOLE-TOOLS: proxyTunnel=' . $proxyTunnel);
+
+ // Write request
+ fwrite($socketResource, $proxyTunnel);
+
+ // Got response?
+ if (feof($socketResource)) {
+ // No response received
+ return $response;
+ } // END - if
+
+ // Read the first line
+ $resp = trim(fgets($socketResource, 10240));
+ $respArray = explode(' ', $resp);
+ if (((strtolower($respArray[0]) !== 'http/1.0') && (strtolower($respArray[0]) !== 'http/1.1')) || ($respArray[1] != '200')) {
+ // Invalid response!
+ return $response;
+ } // END - if
+
+ // All fine!
+ return $respArray;
+ }
+
/**
* Aquires the IP address of this host by reading the /etc/hostname file
* and solving it. It is now stored in configuration
*
- * @return void
+ * @return $ip Aquired IP address
*/
public static function acquireSelfIPAddress () {
// Local IP by default
try {
// Get a file pointer
- $io = FrameworkFileInputPointer::createFrameworkFileInputPointer('/etc/hostname');
+ $io = FrameworkFileInputPointer::createFrameworkFileInputPointer($helperInstance->getConfigInstance()->getConfigEntry('hostname_file'));
// Read the file
$hostname = trim($io->readFromFile());
if (isset($_SERVER['SESSION_SVR'])) {
// Resolve it
$ip = $helperInstance->resolveIpAddress($_SERVER['SESSION_SVR']);
+ } elseif (isset($_SERVER['COMPUTERNAME'])) {
+ // May happen on some XP systems, so also try this
+ $ip = $helperInstance->resolveIpAddress($_SERVER['COMPUTERNAME']);
} else {
// Could not find our hostname
- $helperInstance->debugOutput(sprintf("[%s:] WARNING: Cannot resolve my own IP address.",
+ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:] WARNING: Cannot resolve my own IP address.',
$helperInstance->__toString()
));
}
} catch (FrameworkException $e) {
// Output debug message
- $helperInstance->debugOutput(sprintf("[%s:] Problem while resolving own IP address: [%s|%s]:%s",
+ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:] Problem while resolving own IP address: [%s|%s]:%s',
$helperInstance->__toString(),
$e->__toString(),
$e->getHexCode(),
// Set it in configuration
FrameworkConfiguration::getSelfInstance()->setServerAddress($ip);
+
+ // Return it
+ return $ip;
}
/**
// First get a socket
// @TODO Add some DNS caching here
- $socketResource = fsockopen('188.138.90.169', 80, $errorNo, $errorStr, 5);
+
+ // Open connection
+ if ($helperInstance->isProxyUsed() === true) {
+ // Resolve hostname into IP address
+ $ip = $helperInstance->resolveIpAddress($helperInstance->getConfigInstance()->getConfigEntry('proxy_host'));
+
+ // Connect to host through proxy connection
+ $socketResource = fsockopen($ip, $helperInstance->getConfigInstance()->getConfigEntry('proxy_port'), $errorNo, $errorStr, 30);
+ } else {
+ // Connect to host directly
+ $socketResource = fsockopen('188.138.90.169', 80, $errorNo, $errorStr, 30);
+ }
// Check if there was an error else
if ($errorNo > 0) {
// Then throw again
- throw new InvalidSocketException(array($helperInstance, gettype($socketResource), $errorNo, $errorStr), BaseListener::EXCEPTION_INVALID_SOCKET);
+ throw new InvalidSocketException(array($helperInstance, $socketResource, $errorNo, $errorStr), BaseListener::EXCEPTION_INVALID_SOCKET);
} // END - if
// Prepare the GET request
- $request = 'GET /ip.php HTTP/1.0' . self::HTTP_EOL;
+ $request = 'GET ' . ($helperInstance->isProxyUsed() === true ? 'http://ship-simu.org' : '') . '/ip.php HTTP/1.0' . self::HTTP_EOL;
$request .= 'Host: ship-simu.org' . self::HTTP_EOL;
$request .= 'User-Agent: ' . self::HTTP_USER_AGENT . self::HTTP_EOL;
$request .= 'Connection: close' . self::HTTP_EOL;
+
+ // Do we use proxy?
+ if ($helperInstance->isProxyUsed() === true) {
+ // CONNECT method?
+ if ($helperInstance->getConfigInstance()->getConfigEntry('proxy_connect_method') == 'Y') {
+ // Setup proxy tunnel
+ $response = $helperInstance->setupProxyTunnel('ship-simu.org', 80, $socketResource);
+
+ // If the response is invalid, abort
+ if ((count($response) == 3) && (empty($response[0])) && (empty($response[1])) && (empty($response[2]))) {
+ // Invalid response!
+ $helperInstance->debugBackTrace('Proxy tunnel not working: response=' . print_r($response, true));
+ } // END - if
+ } else {
+ // Add header for proxy
+ $request .= 'Proxy-Connection: Keep-Alive' . self::HTTP_EOL;
+ }
+ } // END - if
+
+ // Add last HTTP_EOL
$request .= self::HTTP_EOL;
// Send it to the socket
// And read the reply
while (!feof($socketResource)) {
- $externalAddress = fgets($socketResource, 128);
+ // Get line
+ $externalAddress = trim(fgets($socketResource, 128));
+
+ // Detect HTTP response
+ if ((substr($externalAddress, 0, 7) == 'HTTP/1.') && (substr($externalAddress, -6, 6) != '200 OK')) {
+ // Stop processing
+ break;
+ } // END - if
} // END - while
// Close socket
fclose($socketResource);
+
+ // Debug message
+ /* DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('CONSOLE-TOOLS: Resolved external address: ' . $externalAddress);
+
// Return determined external IP
return $externalAddress;
}
projects / core.git / blobdiff