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TrackManiaControl/application/core/PhpRemote/GbxRemote.inc.php
Steffen Schröder c97b4166f2 Refactoring of Code, Comments and Spelling
2013-12-09 13:45:58 +01:00

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<?php
/* vim: set noexpandtab tabstop=2 softtabstop=2 shiftwidth=2: */
/*
IXR - The Incutio XML-RPC Library - (c) Incutio Ltd 2002
Version 1.61 - Simon Willison, 11th July 2003 (htmlentities -> htmlspecialchars)
Site: http://scripts.incutio.com/xmlrpc/
Manual: http://scripts.incutio.com/xmlrpc/manual.php
Errors: http://xmlrpc-epi.sourceforge.net/specs/rfc.fault_codes.php
Made available under the Artistic License: http://www.opensource.org/licenses/artistic-license.php
Modified to support protocol 'GbxRemote 2' ('GbxRemote 1')
This version is for LittleEndian (e.g. Intel PC) machines. For BegEndian
machines use GbxRemote.bem.php as GbxRemote.inc.php instead.
Release 2007-09-22 - Slig:
Modified to support >256KB received data (and now >2MB data produce a specific error message)
Modified readCB() to wait the initial timeout only before first read packet
Modified readCB() to return true if there is data to get with getCBResponses()
Modified to support amd64 (for $recvhandle)
Modified IXR_ClientMulticall_Gbx::addCall() to fit Aseco 0.6.1
Added IXR_Client_Gbx::bytes_sent & bytes_received counters
Fix for a changed feature since php5.1.1 about reference parameter assignment (was used in stream_select)
Workaround for stream_select return value bug with amd64
Release 2008-01-20 - Slig / Xymph / Assembler Maniac:
Workaround for fread delay bug in some cases
Added IXR_Client_Gbx::resetError() method (by Xymph)
Some comments and strings code cleanup (by Xymph)
Fix stream_set_timeout($this->socket,...) (thx to CavalierDeVache)
Added a default timeout value to IXR_Client_Gbx::readCB($timeout)
Changed calls with timeout on a stream to use microseconds instead of seconds (by AM)
Removed IXR_Client_Gbx::bytes_sent & bytes_received counters - not used (by AM)
Release 2008-02-05 - Slig:
Changed some socket read/write timeouts back to seconds to avoid 'transport error'
Changed max data received from 2MB to 4MB
Release 2008-05-20 - Xymph:
Prevented unpack() warnings in IXR_Client_Gbx::query() when the connection dies
Changed IXR_Client_Gbx::resetError() to assign 'false' for correct isError()
Tweaked some 'transport error' messages
Release 2009-04-08 - Gou1:
Added method IXR_Client_Gbx::queryIgnoreResult()
Added methods IXR_Client_Gbx::sendRequest() & IXR_Client_Gbx::getResult()
IXR_Client_Gbx::queryIgnoreResult checks if the request is larger than 512KB to avoid errors
If larger than 512KB and method is system.multicall, try to divide the request into
two separate requests with two separate IXR_Client_Gbx::queryIgnoreResult() calls
Release 2009-06-03 - Xymph:
Suppress possible repetitive CRT warning at stream_select
Release 2011-04-09 - Xymph / La beuze:
Added optional timeout mechanism to IXR_Client_Gbx::InitWithIp()
Release 2011-05-22 - Xymph:
Added non-error (true) return status to IXR_Client_Gbx::queryIgnoreResult()
Updated status codes and messages for transport/endian errors
Prevented possible PHP warning in IXR_Client_Gbx::getErrorCode() and getErrorMessage()
*/
if (!defined('LF')) {
define('LF', "\n");
}
class IXR_Value {
public $data;
public $type;
function IXR_Value ($data, $type = false) {
$this->data = $data;
if (!$type) {
$type = $this->calculateType();
}
$this->type = $type;
if ($type == 'struct') {
// Turn all the values in the array into new IXR_Value objects
foreach ($this->data as $key => $value) {
$this->data[$key] = new IXR_Value($value);
}
}
if ($type == 'array') {
for ($i = 0, $j = count($this->data); $i < $j; $i++) {
$this->data[$i] = new IXR_Value($this->data[$i]);
}
}
}
function calculateType() {
if ($this->data === true || $this->data === false) {
return 'boolean';
}
if (is_integer($this->data)) {
return 'int';
}
if (is_double($this->data)) {
return 'double';
}
// Deal with IXR object types base64 and date
if (is_object($this->data) && is_a($this->data, 'IXR_Date')) {
return 'date';
}
if (is_object($this->data) && is_a($this->data, 'IXR_Base64')) {
return 'base64';
}
// If it is a normal PHP object convert it into a struct
if (is_object($this->data)) {
$this->data = get_object_vars($this->data);
return 'struct';
}
if (!is_array($this->data)) {
return 'string';
}
// We have an array - is it an array or a struct?
if ($this->isStruct($this->data)) {
return 'struct';
} else {
return 'array';
}
}
function getXml() {
// Return XML for this value
switch ($this->type) {
case 'boolean':
return '<boolean>' . ($this->data ? '1' : '0') . '</boolean>';
break;
case 'int':
return '<int>' . $this->data . '</int>';
break;
case 'double':
return '<double>' . $this->data . '</double>';
break;
case 'string':
return '<string>' . htmlspecialchars($this->data) . '</string>';
break;
case 'array':
$return = '<array><data>' . LF;
foreach ($this->data as $item) {
$return .= ' <value>' . $item->getXml() . '</value>' . LF;
}
$return .= '</data></array>';
return $return;
break;
case 'struct':
$return = '<struct>' . LF;
foreach ($this->data as $name => $value) {
$return .= ' <member><name>' . $name . '</name><value>';
$return .= $value->getXml() . '</value></member>' . LF;
}
$return .= '</struct>';
return $return;
break;
case 'date':
case 'base64':
return $this->data->getXml();
break;
}
return false;
}
function isStruct($array) {
// Nasty function to check if an array is a struct or not
$expected = 0;
foreach ($array as $key => $value) {
if ((string)$key != (string)$expected) {
return true;
}
$expected++;
}
return false;
}
}
class IXR_Message {
public $message;
public $messageType; // methodCall / methodResponse / fault
public $faultCode;
public $faultString;
public $methodName;
public $params;
// Current variable stacks
protected $_arraystructs = array(); // Stack to keep track of the current array/struct
protected $_arraystructstypes = array(); // Stack to keep track of whether things are structs or array
protected $_currentStructName = array(); // A stack as well
protected $_param;
protected $_value;
protected $_currentTag;
protected $_currentTagContents;
// The XML parser
protected $_parser;
function IXR_Message ($message) {
$this->message = $message;
}
function parse() {
// first remove the XML declaration
$this->message = preg_replace('/<\?xml(.*)?\?'.'>/', '', $this->message);
if (trim($this->message) == '') {
return false;
}
$this->_parser = xml_parser_create();
// Set XML parser to take the case of tags into account
xml_parser_set_option($this->_parser, XML_OPTION_CASE_FOLDING, false);
// Set XML parser callback functions
xml_set_object($this->_parser, $this);
xml_set_element_handler($this->_parser, 'tag_open', 'tag_close');
xml_set_character_data_handler($this->_parser, 'cdata');
if (!xml_parse($this->_parser, $this->message)) {
/* die(sprintf('GbxRemote XML error: %s at line %d',
xml_error_string(xml_get_error_code($this->_parser)),
xml_get_current_line_number($this->_parser))); */
return false;
}
xml_parser_free($this->_parser);
// Grab the error messages, if any
if ($this->messageType == 'fault') {
$this->faultCode = $this->params[0]['faultCode'];
$this->faultString = $this->params[0]['faultString'];
}
return true;
}
function tag_open($parser, $tag, $attr) {
$this->currentTag = $tag;
switch ($tag) {
case 'methodCall':
case 'methodResponse':
case 'fault':
$this->messageType = $tag;
break;
// Deal with stacks of arrays and structs
case 'data': // data is to all intents and purposes more interesting than array
$this->_arraystructstypes[] = 'array';
$this->_arraystructs[] = array();
break;
case 'struct':
$this->_arraystructstypes[] = 'struct';
$this->_arraystructs[] = array();
break;
}
}
function cdata($parser, $cdata) {
$this->_currentTagContents .= $cdata;
}
function tag_close($parser, $tag) {
$valueFlag = false;
switch ($tag) {
case 'int':
case 'i4':
$value = (int)trim($this->_currentTagContents);
$this->_currentTagContents = '';
$valueFlag = true;
break;
case 'double':
$value = (double)trim($this->_currentTagContents);
$this->_currentTagContents = '';
$valueFlag = true;
break;
case 'string':
$value = (string)trim($this->_currentTagContents);
$this->_currentTagContents = '';
$valueFlag = true;
break;
case 'dateTime.iso8601':
$value = new IXR_Date(trim($this->_currentTagContents));
// $value = $iso->getTimestamp();
$this->_currentTagContents = '';
$valueFlag = true;
break;
case 'value':
// If no type is indicated, the type is string
if (trim($this->_currentTagContents) != '') {
$value = (string)$this->_currentTagContents;
$this->_currentTagContents = '';
$valueFlag = true;
}
break;
case 'boolean':
$value = (boolean)trim($this->_currentTagContents);
$this->_currentTagContents = '';
$valueFlag = true;
break;
case 'base64':
$value = base64_decode($this->_currentTagContents);
$this->_currentTagContents = '';
$valueFlag = true;
break;
// Deal with stacks of arrays and structs
case 'data':
case 'struct':
$value = array_pop($this->_arraystructs);
array_pop($this->_arraystructstypes);
$valueFlag = true;
break;
case 'member':
array_pop($this->_currentStructName);
break;
case 'name':
$this->_currentStructName[] = trim($this->_currentTagContents);
$this->_currentTagContents = '';
break;
case 'methodName':
$this->methodName = trim($this->_currentTagContents);
$this->_currentTagContents = '';
break;
}
if ($valueFlag) {
/*
if (!is_array($value) && !is_object($value)) {
$value = trim($value);
}
*/
if (count($this->_arraystructs) > 0) {
// Add value to struct or array
if ($this->_arraystructstypes[count($this->_arraystructstypes)-1] == 'struct') {
// Add to struct
$this->_arraystructs[count($this->_arraystructs)-1][$this->_currentStructName[count($this->_currentStructName)-1]] = $value;
} else {
// Add to array
$this->_arraystructs[count($this->_arraystructs)-1][] = $value;
}
} else {
// Just add as a paramater
$this->params[] = $value;
}
}
}
}
class IXR_Request {
public $method;
public $args;
public $xml;
function IXR_Request($method, $args) {
$this->method = $method;
$this->args = $args;
$this->xml = '<?xml version="1.0" encoding="utf-8" ?><methodCall><methodName>' . $this->method . '</methodName><params>';
foreach ($this->args as $arg) {
$this->xml .= '<param><value>';
$v = new IXR_Value($arg);
$this->xml .= $v->getXml();
$this->xml .= '</value></param>' . LF;
}
$this->xml .= '</params></methodCall>';
}
function getLength() {
return strlen($this->xml);
}
function getXml() {
return $this->xml;
}
}
class IXR_Error {
public $code;
public $message;
function IXR_Error($code, $message) {
$this->code = $code;
$this->message = $message;
}
function getXml() {
$xml = <<<EOD
<methodResponse>
<fault>
<value>
<struct>
<member>
<name>faultCode</name>
<value><int>{$this->code}</int></value>
</member>
<member>
<name>faultString</name>
<value><string>{$this->message}</string></value>
</member>
</struct>
</value>
</fault>
</methodResponse>
EOD;
return $xml;
}
}
class IXR_Date {
public $year;
public $month;
public $day;
public $hour;
public $minute;
public $second;
function IXR_Date($time) {
// $time can be a PHP timestamp or an ISO one
if (is_numeric($time)) {
$this->parseTimestamp($time);
} else {
$this->parseIso($time);
}
}
function parseTimestamp($timestamp) {
$this->year = date('Y', $timestamp);
$this->month = date('Y', $timestamp);
$this->day = date('Y', $timestamp);
$this->hour = date('H', $timestamp);
$this->minute = date('i', $timestamp);
$this->second = date('s', $timestamp);
}
function parseIso($iso) {
$this->year = substr($iso, 0, 4);
$this->month = substr($iso, 4, 2);
$this->day = substr($iso, 6, 2);
$this->hour = substr($iso, 9, 2);
$this->minute = substr($iso, 12, 2);
$this->second = substr($iso, 15, 2);
}
function getIso() {
return $this->year.$this->month.$this->day.'T'.$this->hour.':'.$this->minute.':'.$this->second;
}
function getXml() {
return '<dateTime.iso8601>'.$this->getIso().'</dateTime.iso8601>';
}
function getTimestamp() {
return mktime($this->hour, $this->minute, $this->second, $this->month, $this->day, $this->year);
}
}
class IXR_Base64 {
public $data;
function IXR_Base64($data) {
$this->data = $data;
}
function getXml() {
return '<base64>'.base64_encode($this->data).'</base64>';
}
}
//////////////////////////////////////////////////////////
// Nadeo modifications //
// (many thanks to slig for adding callback support) //
//////////////////////////////////////////////////////////
class IXR_Client_Gbx {
public $socket;
public $message = false;
public $cb_message = array();
public $reqhandle;
public $protocol = 0;
// Storage place for an error message
public $error = false;
function bigEndianTest() {
list($endiantest) = array_values(unpack('L1L', pack('V', 1)));
if ($endiantest != 1) {
echo "Machine reports itself as BigEndian, float handling must be altered\r\n";
echo "Overwrite GbxRemote.inc.php with GbxRemote.bem.php\r\n";
die('App Terminated');
return false;
}
return true;
} // bigEndianTest
function IXR_Client_Gbx() {
$this->socket = false;
$this->reqhandle = 0x80000000;
}
function InitWithIp($ip, $port, $timeout = null) {
if (!$this->bigEndianTest()) {
$this->error = new IXR_Error(-31999, 'endian error - script doesn\'t match machine type');
return false;
}
// open connection, with timeout if specified
if (!isset($timeout)) {
$this->socket = @fsockopen($ip, $port, $errno, $errstr);
} else {
$init_time = microtime(true);
$init_timeout = 5; // retry every 5s
while (true) {
$this->socket = @fsockopen($ip, $port, $errno, $errstr, $init_timeout);
if ($this->socket || (microtime(true) - $init_time >= $timeout))
break;
}
}
if (!$this->socket) {
$this->error = new IXR_Error(-32300, "transport error - could not open socket (error: $errno, $errstr)");
return false;
}
// handshake
$array_result = unpack('Vsize', fread($this->socket, 4));
$size = $array_result['size'];
if ($size > 64) {
$this->error = new IXR_Error(-32300, 'transport error - wrong lowlevel protocol header');
return false;
}
$handshake = fread($this->socket, $size);
if ($handshake == 'GBXRemote 1') {
$this->protocol = 1;
} else if ($handshake == 'GBXRemote 2') {
$this->protocol = 2;
} else {
$this->error = new IXR_Error(-32300, 'transport error - wrong lowlevel protocol version');
return false;
}
return true;
}
function Init($port) {
return $this->InitWithIp('localhost', $port);
}
function Terminate() {
if ($this->socket) {
fclose($this->socket);
$this->socket = false;
}
}
protected function sendRequest(IXR_Request $request) {
$xml = $request->getXml();
@stream_set_timeout($this->socket, 20); // timeout 20s (to write the request)
// send request
$this->reqhandle++;
if ($this->protocol == 1) {
$bytes = pack('Va*', strlen($xml), $xml);
} else {
$bytes = pack('VVa*', strlen($xml), $this->reqhandle, $xml);
}
$bytes_to_write = strlen($bytes);
while ($bytes_to_write > 0) {
$r = @fwrite($this->socket, $bytes);
if ($r === false || $r == 0) {
// connection interrupted
return false; // or die?
}
$bytes_to_write -= $r;
if ($bytes_to_write == 0)
break;
$bytes = substr($bytes, $r);
}
return true;
}
protected function getResult() {
$contents = '';
$contents_length = 0;
do {
$size = 0;
$recvhandle = 0;
@stream_set_timeout($this->socket, 20); // timeout 20s (to read the reply header)
// Get result
if ($this->protocol == 1) {
$contents = fread($this->socket, 4);
if (strlen($contents) == 0) {
$this->error = new IXR_Error(-32300, 'transport error - cannot read size');
return false;
}
$array_result = unpack('Vsize', $contents);
$size = $array_result['size'];
$recvhandle = $this->reqhandle;
} else {
$contents = fread($this->socket, 8);
if (strlen($contents) == 0) {
$this->error = new IXR_Error(-32300, 'transport error - cannot read size/handle');
return false;
}
$array_result = unpack('Vsize/Vhandle', $contents);
$size = $array_result['size'];
$recvhandle = $array_result['handle'];
// -- amd64 support --
$bits = sprintf('%b', $recvhandle);
if (strlen($bits) == 64) {
$recvhandle = bindec(substr($bits, 32));
}
}
if ($recvhandle == 0 || $size == 0) {
$this->error = new IXR_Error(-32300, 'transport error - connection interrupted!');
return false;
}
if ($size > 4096*1024) {
$this->error = new IXR_Error(-32300, "transport error - response too large ($size)");
return false;
}
$contents = '';
$contents_length = 0;
@stream_set_timeout($this->socket, 0, 10000); // timeout 10 ms (for successive reads until end)
while ($contents_length < $size) {
$contents .= fread($this->socket, $size-$contents_length);
$contents_length = strlen($contents);
}
if (($recvhandle & 0x80000000) == 0) {
// this is a callback, not our answer! handle= $recvhandle, xml-rpc= $contents
// just add it to the message list for the user to read
$new_cb_message = new IXR_Message($contents);
if ($new_cb_message->parse() && $new_cb_message->messageType != 'fault') {
array_push($this->cb_message, array($new_cb_message->methodName, $new_cb_message->params));
}
}
} while ((int)$recvhandle != (int)$this->reqhandle);
$this->message = new IXR_Message($contents);
if (!$this->message->parse()) {
// XML error
$this->error = new IXR_Error(-32700, 'parse error. not well formed');
return false;
}
// Is the message a fault?
if ($this->message->messageType == 'fault') {
$this->error = new IXR_Error($this->message->faultCode, $this->message->faultString);
return false;
}
// Message must be OK
return true;
}
function query() {
$args = func_get_args();
$method = array_shift($args);
if (!$this->socket || $this->protocol == 0) {
$this->error = new IXR_Error(-32300, 'transport error - client not initialized');
return false;
}
$request = new IXR_Request($method, $args);
// Check if request is larger than 512 Kbytes
if (($size = $request->getLength()) > 512*1024-8) {
$this->error = new IXR_Error(-32300, "transport error - request too large ($size)");
return false;
}
// Send request
$ok = $this->sendRequest($request);
if (!$ok) {
$this->error = new IXR_Error(-32300, 'transport error - connection interrupted!');
return false;
}
// Get result
return $this->getResult();
}
// Non-blocking query method: doesn't read the response
function queryIgnoreResult() {
$args = func_get_args();
$method = array_shift($args);
if (!$this->socket || $this->protocol == 0) {
$this->error = new IXR_Error(-32300, 'transport error - client not initialized');
return false;
}
$request = new IXR_Request($method, $args);
// Check if the request is greater than 512 Kbytes to avoid errors
// If the method is system.multicall, make two calls (possibly recursively)
if (($size = $request->getLength()) > 512*1024-8) {
if ($method = 'system.multicall' && isset($args[0])) {
$count = count($args[0]);
// If count is 1, query cannot be reduced
if ($count < 2) {
$this->error = new IXR_Error(-32300, "transport error - request too large ($size)");
return false;
}
$length = floor($count/2);
$args1 = array_slice($args[0], 0, $length);
$args2 = array_slice($args[0], $length, ($count-$length));
$res1 = $this->queryIgnoreResult('system.multicall', $args1);
$res2 = $this->queryIgnoreResult('system.multicall', $args2);
return ($res1 && $res2);
}
// If the method is not a multicall, just stop
else {
$this->error = new IXR_Error(-32300, "transport error - request too large ($size)");
return false;
}
}
// Send request
$ok = $this->sendRequest($request);
if (!$ok) {
$this->error = new IXR_Error(-32300, 'transport error - connection interrupted!');
return false;
}
return true;
}
function readCB($timeout = 2000) { // timeout 2 ms
if (!$this->socket || $this->protocol == 0) {
$this->error = new IXR_Error(-32300, 'transport error - client not initialized');
return false;
}
if ($this->protocol == 1)
return false;
$something_received = count($this->cb_message)>0;
$contents = '';
$contents_length = 0;
@stream_set_timeout($this->socket, 0, 10000); // timeout 10 ms (to read available data)
// (assignment in arguments is forbidden since php 5.1.1)
$read = array($this->socket);
$write = NULL;
$except = NULL;
$nb = @stream_select($read, $write, $except, 0, $timeout);
// workaround for stream_select bug with amd64
if ($nb !== false)
$nb = count($read);
while ($nb !== false && $nb > 0) {
$timeout = 0; // we don't want to wait for the full time again, just flush the available data
$size = 0;
$recvhandle = 0;
// Get result
$contents = fread($this->socket, 8);
if (strlen($contents) == 0) {
$this->error = new IXR_Error(-32300, 'transport error - cannot read size/handle');
return false;
}
$array_result = unpack('Vsize/Vhandle', $contents);
$size = $array_result['size'];
$recvhandle = $array_result['handle'];
if ($recvhandle == 0 || $size == 0) {
$this->error = new IXR_Error(-32300, 'transport error - connection interrupted!');
return false;
}
if ($size > 4096*1024) {
$this->error = new IXR_Error(-32300, "transport error - response too large ($size)");
return false;
}
$contents = '';
$contents_length = 0;
while ($contents_length < $size) {
$contents .= fread($this->socket, $size-$contents_length);
$contents_length = strlen($contents);
}
if (($recvhandle & 0x80000000) == 0) {
// this is a callback. handle= $recvhandle, xml-rpc= $contents
//echo 'CALLBACK('.$contents_length.')[ '.$contents.' ]' . LF;
$new_cb_message = new IXR_Message($contents);
if ($new_cb_message->parse() && $new_cb_message->messageType != 'fault') {
array_push($this->cb_message, array($new_cb_message->methodName, $new_cb_message->params));
}
$something_received = true;
}
// (assignment in arguments is forbidden since php 5.1.1)
$read = array($this->socket);
$write = NULL;
$except = NULL;
$nb = @stream_select($read, $write, $except, 0, $timeout);
// workaround for stream_select bug with amd64
if ($nb !== false)
$nb = count($read);
}
return $something_received;
}
function getResponse() {
// methodResponses can only have one param - return that
return $this->message->params[0];
}
function getCBResponses() {
// (look at the end of basic.php for an example)
$messages = $this->cb_message;
$this->cb_message = array();
return $messages;
}
function isError() {
return is_object($this->error);
}
function resetError() {
$this->error = false;
}
function getErrorCode() {
if ($this->isError())
return $this->error->code;
else
return 0;
}
function getErrorMessage() {
if ($this->isError())
return $this->error->message;
else
return '';
}
}
class IXR_ClientMulticall_Gbx extends IXR_Client_Gbx {
public $calls = array();
function addCall($methodName, $args) {
$struct = array('methodName' => $methodName, 'params' => $args);
$this->calls[] = $struct;
return (count($this->calls) - 1);
}
function multiquery($ignoreResult = false) {
// Prepare multicall, then call the parent::query() (or queryIgnoreResult) method
if ($ignoreResult) {
$result = parent::queryIgnoreResult('system.multicall', $this->calls);
} else {
$result = parent::query('system.multicall', $this->calls);
}
$this->calls = array(); // reset for next calls
return $result;
}
}
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