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<?php
/**
* IXR - The Inutio XML-RPC Library - (c) Incutio Ltd 2002
*
* @version 1.61
* @author Simon Willison
* @date 11th July 2003
* @link http://scripts.incutio.com/xmlrpc/
* @link http://scripts.incutio.com/xmlrpc/manual.php
* @license Artistic License http://www.opensource.org/licenses/artistic-license.php
*
* Modified for DokuWiki
* @author Andreas Gohr <andi@splitbrain.org>
*/
class IXR_Value {
var $data;
var $type;
function IXR_Value ($data, $type = false) {
$this->data = $data;
if (!$type) {
$type = $this->calculateType();
}
$this->type = $type;
if ($type == 'struct') {
/* Turn all the values in the array in to 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($this->data, 'IXR_Base64')) {
return 'base64';
}
// If it is a normal PHP object convert it in to a struct
if (is_object($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':
$return = '<array><data>'."\n";
foreach ($this->data as $item) {
$return .= ' <value>'.$item->getXml()."</value>\n";
}
$return .= '</data></array>';
return $return;
break;
case 'struct':
$return = '<struct>'."\n";
foreach ($this->data as $name => $value) {
$return .= " <member><name>$name</name><value>";
$return .= $value->getXml()."</value></member>\n";
}
$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 {
var $message;
var $messageType; // methodCall / methodResponse / fault
var $faultCode;
var $faultString;
var $methodName;
var $params;
// Current variable stacks
var $_arraystructs = array(); // The stack used to keep track of the current array/struct
var $_arraystructstypes = array(); // Stack keeping track of if things are structs or array
var $_currentStructName = array(); // A stack as well
var $_param;
var $_value;
var $_currentTag;
var $_currentTagContents;
var $_lastseen;
// The XML parser
var $_parser;
function IXR_Message ($message) {
$this->message = $message;
}
function parse() {
// first remove the XML declaration
$this->message = preg_replace('/<\?xml(.*)?\?'.'>/', '', $this->message);
// workaround for a bug in PHP/libxml2, see http://bugs.php.net/bug.php?id=45996
$this->message = str_replace('&lt;', '&#60;', $this->message);
$this->message = str_replace('&gt;', '&#62;', $this->message);
$this->message = str_replace('&amp;', '&#38;', $this->message);
$this->message = str_replace('&apos;', '&#39;', $this->message);
$this->message = str_replace('&quot;', '&#34;', $this->message);
$this->message = str_replace("\x0b", ' ', $this->message); //vertical tab
if (trim($this->message) == '') {
return false;
}
$this->_parser = xml_parser_create();
// Set XML parser to take the case of tags in to account
xml_parser_set_option($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, $this->message)) {
/* die(sprintf('XML error: %s at line %d',
xml_error_string(xml_get_error_code($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;
$this->_currentTagContents = '';
switch($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 puposes more interesting than array
$this->_arraystructstypes[] = 'array';
$this->_arraystructs[] = array();
break;
case 'struct':
$this->_arraystructstypes[] = 'struct';
$this->_arraystructs[] = array();
break;
}
$this->_lastseen = $tag;
}
function cdata($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':
$value = (string)$this->_currentTagContents;
$this->_currentTagContents = '';
$valueFlag = true;
break;
case 'dateTime.iso8601':
$value = new IXR_Date(trim($this->_currentTagContents));
// $value = $iso->getTimestamp();
$this->_currentTagContents = '';
$valueFlag = true;
break;
case 'value':
// "If no type is indicated, the type is string."
if($this->_lastseen == 'value'){
$value = (string)$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;
}
}
$this->_lastseen = $tag;
}
}
class IXR_Server {
var $data;
var $callbacks = array();
var $message;
var $capabilities;
function IXR_Server($callbacks = false, $data = false) {
$this->setCapabilities();
if ($callbacks) {
$this->callbacks = $callbacks;
}
$this->setCallbacks();
$this->serve($data);
}
function serve($data = false) {
if (!$data) {
$postData = trim(http_get_raw_post_data());
if (!$postData) {
die('XML-RPC server accepts POST requests only.');
}
$data = $postData;
}
$this->message = new IXR_Message($data);
if (!$this->message->parse()) {
$this->error(-32700, 'parse error. not well formed');
}
if ($this->message->messageType != 'methodCall') {
$this->error(-32600, 'server error. invalid xml-rpc. not conforming to spec. Request must be a methodCall');
}
$result = $this->call($this->message->methodName, $this->message->params);
// Is the result an error?
if (is_a($result, 'IXR_Error')) {
$this->error($result);
}
// Encode the result
$r = new IXR_Value($result);
$resultxml = $r->getXml();
// Create the XML
$xml = <<<EOD
<methodResponse>
<params>
<param>
<value>
$resultxml
</value>
</param>
</params>
</methodResponse>
EOD;
// Send it
$this->output($xml);
}
function call($methodname, $args) {
if (!$this->hasMethod($methodname)) {
return new IXR_Error(-32601, 'server error. requested method '.$methodname.' does not exist.');
}
$method = $this->callbacks[$methodname];
// Perform the callback and send the response
# Removed for DokuWiki to have a more consistent interface
# if (count($args) == 1) {
# // If only one paramater just send that instead of the whole array
# $args = $args[0];
# }
# Adjusted for DokuWiki to use call_user_func_array
// args need to be an array
$args = (array) $args;
// Are we dealing with a function or a method?
if (substr($method, 0, 5) == 'this:') {
// It's a class method - check it exists
$method = substr($method, 5);
if (!method_exists($this, $method)) {
return new IXR_Error(-32601, 'server error. requested class method "'.$method.'" does not exist.');
}
// Call the method
#$result = $this->$method($args);
$result = call_user_func_array(array(&$this,$method),$args);
} elseif (substr($method, 0, 7) == 'plugin:') {
list($pluginname, $callback) = explode(':', substr($method, 7), 2);
if(!plugin_isdisabled($pluginname)) {
$plugin = plugin_load('action', $pluginname);
return call_user_func_array(array($plugin, $callback), $args);
} else {
return new IXR_Error(-99999, 'server error');
}
} else {
// It's a function - does it exist?
if (!function_exists($method)) {
return new IXR_Error(-32601, 'server error. requested function "'.$method.'" does not exist.');
}
// Call the function
#$result = $method($args);
$result = call_user_func_array($method,$args);
}
return $result;
}
function error($error, $message = false) {
// Accepts either an error object or an error code and message
if ($message && !is_object($error)) {
$error = new IXR_Error($error, $message);
}
$this->output($error->getXml());
}
function output($xml) {
header('Content-Type: text/xml; charset=utf-8');
echo '<?xml version="1.0"?>', "\n", $xml;
exit;
}
function hasMethod($method) {
return in_array($method, array_keys($this->callbacks));
}
function setCapabilities() {
// Initialises capabilities array
$this->capabilities = array(
'xmlrpc' => array(
'specUrl' => 'http://www.xmlrpc.com/spec',
'specVersion' => 1
),
'faults_interop' => array(
'specUrl' => 'http://xmlrpc-epi.sourceforge.net/specs/rfc.fault_codes.php',
'specVersion' => 20010516
),
'system.multicall' => array(
'specUrl' => 'http://www.xmlrpc.com/discuss/msgReader$1208',
'specVersion' => 1
),
);
}
function getCapabilities() {
return $this->capabilities;
}
function setCallbacks() {
$this->callbacks['system.getCapabilities'] = 'this:getCapabilities';
$this->callbacks['system.listMethods'] = 'this:listMethods';
$this->callbacks['system.multicall'] = 'this:multiCall';
}
function listMethods() {
// Returns a list of methods - uses array_reverse to ensure user defined
// methods are listed before server defined methods
return array_reverse(array_keys($this->callbacks));
}
function multiCall($methodcalls) {
// See http://www.xmlrpc.com/discuss/msgReader$1208
$return = array();
foreach ($methodcalls as $call) {
$method = $call['methodName'];
$params = $call['params'];
if ($method == 'system.multicall') {
$result = new IXR_Error(-32800, 'Recursive calls to system.multicall are forbidden');
} else {
$result = $this->call($method, $params);
}
if (is_a($result, 'IXR_Error')) {
$return[] = array(
'faultCode' => $result->code,
'faultString' => $result->message
);
} else {
$return[] = array($result);
}
}
return $return;
}
}
class IXR_Request {
var $method;
var $args;
var $xml;
function IXR_Request($method, $args) {
$this->method = $method;
$this->args = $args;
$this->xml = <<<EOD
<?xml version="1.0"?>
<methodCall>
<methodName>{$this->method}</methodName>
<params>
EOD;
foreach ($this->args as $arg) {
$this->xml .= '<param><value>';
$v = new IXR_Value($arg);
$this->xml .= $v->getXml();
$this->xml .= "</value></param>\n";
}
$this->xml .= '</params></methodCall>';
}
function getLength() {
return strlen($this->xml);
}
function getXml() {
return $this->xml;
}
}
/**
* Changed for DokuWiki to use DokuHTTPClient
*
* This should be compatible to the original class, but uses DokuWiki's
* HTTP client library which will respect proxy settings
*
* Because the XMLRPC client is not used in DokuWiki currently this is completely
* untested
*/
class IXR_Client extends DokuHTTPClient {
var $posturl = '';
var $message = false;
var $xmlerror = false;
function IXR_Client($server, $path = false, $port = 80) {
parent::__construct();
if (!$path) {
// Assume we have been given a URL instead
$this->posturl = $server;
}else{
$this->posturl = 'http://'.$server.':'.$port.$path;
}
}
function query() {
$args = func_get_args();
$method = array_shift($args);
$request = new IXR_Request($method, $args);
$xml = $request->getXml();
$this->headers['Content-Type'] = 'text/xml';
if(!$this->sendRequest($this->posturl,$xml,'POST')){
$this->xmlerror = new IXR_Error(-32300, 'transport error - '.$this->error);
return false;
}
// Check HTTP Response code
if($this->status < 200 || $this->status > 206){
$this->xmlerror = new IXR_Error(-32300, 'transport error - HTTP status '.$this->status);
return false;
}
// Now parse what we've got back
$this->message = new IXR_Message($this->resp_body);
if (!$this->message->parse()) {
// XML error
$this->xmlerror = new IXR_Error(-32700, 'parse error. not well formed');
return false;
}
// Is the message a fault?
if ($this->message->messageType == 'fault') {
$this->xmlerror = new IXR_Error($this->message->faultCode, $this->message->faultString);
return false;
}
// Message must be OK
return true;
}
function getResponse() {
// methodResponses can only have one param - return that
return $this->message->params[0];
}
function isError() {
return (is_object($this->xmlerror));
}
function getErrorCode() {
return $this->xmlerror->code;
}
function getErrorMessage() {
return $this->xmlerror->message;
}
}
class IXR_Error {
var $code;
var $message;
function IXR_Error($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 {
var $year;
var $month;
var $day;
var $hour;
var $minute;
var $second;
function IXR_Date($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 = gmdate('Y', $timestamp);
$this->month = gmdate('m', $timestamp);
$this->day = gmdate('d', $timestamp);
$this->hour = gmdate('H', $timestamp);
$this->minute = gmdate('i', $timestamp);
$this->second = gmdate('s', $timestamp);
}
function parseIso($iso) {
if(preg_match('/^(\d\d\d\d)-?(\d\d)-?(\d\d)([T ](\d\d):(\d\d)(:(\d\d))?)?/',$iso,$match)){
$this->year = (int) $match[1];
$this->month = (int) $match[2];
$this->day = (int) $match[3];
$this->hour = (int) $match[5];
$this->minute = (int) $match[6];
$this->second = (int) $match[8];
}
}
function getIso() {
return $this->year.$this->month.$this->day.'T'.$this->hour.':'.$this->minute.':'.$this->second;
}
function getXml() {
return '<dateTime.iso8601>'.$this->getIso().'</dateTime.iso8601>';
}
function getTimestamp() {
return gmmktime($this->hour, $this->minute, $this->second, $this->month, $this->day, $this->year);
}
}
class IXR_Base64 {
var $data;
function IXR_Base64($data) {
$this->data = $data;
}
function getXml() {
return '<base64>'.base64_encode($this->data).'</base64>';
}
}
class IXR_IntrospectionServer extends IXR_Server {
var $signatures;
var $help;
function IXR_IntrospectionServer() {
$this->setCallbacks();
$this->setCapabilities();
$this->capabilities['introspection'] = array(
'specUrl' => 'http://xmlrpc.usefulinc.com/doc/reserved.html',
'specVersion' => 1
);
$this->addCallback(
'system.methodSignature',
'this:methodSignature',
array('array', 'string'),
'Returns an array describing the return type and required parameters of a method'
);
$this->addCallback(
'system.getCapabilities',
'this:getCapabilities',
array('struct'),
'Returns a struct describing the XML-RPC specifications supported by this server'
);
$this->addCallback(
'system.listMethods',
'this:listMethods',
array('array'),
'Returns an array of available methods on this server'
);
$this->addCallback(
'system.methodHelp',
'this:methodHelp',
array('string', 'string'),
'Returns a documentation string for the specified method'
);
}
function addCallback($method, $callback, $args, $help) {
$this->callbacks[$method] = $callback;
$this->signatures[$method] = $args;
$this->help[$method] = $help;
}
function call($methodname, $args) {
// Make sure it's in an array
if ($args && !is_array($args)) {
$args = array($args);
}
// Over-rides default call method, adds signature check
if (!$this->hasMethod($methodname)) {
return new IXR_Error(-32601, 'server error. requested method "'.$this->message->methodName.'" not specified.');
}
$method = $this->callbacks[$methodname];
$signature = $this->signatures[$methodname];
$returnType = array_shift($signature);
// Check the number of arguments. Check only, if the minimum count of parameters is specified. More parameters are possible.
// This is a hack to allow optional parameters...
if (count($args) < count($signature)) {
// print 'Num of args: '.count($args).' Num in signature: '.count($signature);
return new IXR_Error(-32602, 'server error. wrong number of method parameters');
}
// Check the argument types
$ok = true;
$argsbackup = $args;
for ($i = 0, $j = count($args); $i < $j; $i++) {
$arg = array_shift($args);
$type = array_shift($signature);
switch ($type) {
case 'int':
case 'i4':
if (is_array($arg) || !is_int($arg)) {
$ok = false;
}
break;
case 'base64':
case 'string':
if (!is_string($arg)) {
$ok = false;
}
break;
case 'boolean':
if ($arg !== false && $arg !== true) {
$ok = false;
}
break;
case 'float':
case 'double':
if (!is_float($arg)) {
$ok = false;
}
break;
case 'date':
case 'dateTime.iso8601':
if (!is_a($arg, 'IXR_Date')) {
$ok = false;
}
break;
}
if (!$ok) {
return new IXR_Error(-32602, 'server error. invalid method parameters');
}
}
// It passed the test - run the "real" method call
return parent::call($methodname, $argsbackup);
}
function methodSignature($method) {
if (!$this->hasMethod($method)) {
return new IXR_Error(-32601, 'server error. requested method "'.$method.'" not specified.');
}
// We should be returning an array of types
$types = $this->signatures[$method];
$return = array();
foreach ($types as $type) {
switch ($type) {
case 'string':
$return[] = 'string';
break;
case 'int':
case 'i4':
$return[] = 42;
break;
case 'double':
$return[] = 3.1415;
break;
case 'dateTime.iso8601':
$return[] = new IXR_Date(time());
break;
case 'boolean':
$return[] = true;
break;
case 'base64':
$return[] = new IXR_Base64('base64');
break;
case 'array':
$return[] = array('array');
break;
case 'struct':
$return[] = array('struct' => 'struct');
break;
}
}
return $return;
}
function methodHelp($method) {
return $this->help[$method];
}
}
class IXR_ClientMulticall extends IXR_Client {
var $calls = array();
function IXR_ClientMulticall($server, $path = false, $port = 80) {
parent::IXR_Client($server, $path, $port);
//$this->useragent = 'The Incutio XML-RPC PHP Library (multicall client)';
}
function addCall() {
$args = func_get_args();
$methodName = array_shift($args);
$struct = array(
'methodName' => $methodName,
'params' => $args
);
$this->calls[] = $struct;
}
function query() {
// Prepare multicall, then call the parent::query() method
return parent::query('system.multicall', $this->calls);
}
}
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