5 use PhpXmlRpc\Helper\XMLParser;
6 use PhpXmlRpc\Helper\Charset;
9 * Allows effortless implementation of XML-RPC servers
14 * Array defining php functions exposed as xmlrpc methods by this server.
16 protected $dmap = array();
19 * Defines how functions in dmap will be invoked: either using an xmlrpc request object
20 * or plain php values.
21 * Valid strings are 'xmlrpcvals', 'phpvals' or 'epivals'
23 public $functions_parameters_type = 'xmlrpcvals';
26 * Option used for fine-tuning the encoding the php values returned from
27 * functions registered in the dispatch map when the functions_parameters_types
28 * member is set to 'phpvals'
29 * @see Encoder::encode for a list of values
31 public $phpvals_encoding_options = array('auto_dates');
34 * Controls whether the server is going to echo debugging messages back to the client as comments in response body.
35 * Valid values: 0,1,2,3
40 * Controls behaviour of server when the invoked user function throws an exception:
41 * 0 = catch it and return an 'internal error' xmlrpc response (default)
42 * 1 = catch it and return an xmlrpc response with the error corresponding to the exception
43 * 2 = allow the exception to float to the upper layers
45 public $exception_handling = 0;
48 * When set to true, it will enable HTTP compression of the response, in case
49 * the client has declared its support for compression in the request.
50 * Set at constructor time.
52 public $compress_response = false;
55 * List of http compression methods accepted by the server for requests. Set at constructor time.
56 * NB: PHP supports deflate, gzip compressions out of the box if compiled w. zlib
58 public $accepted_compression = array();
60 /// Shall we serve calls to system.* methods?
61 public $allow_system_funcs = true;
64 * List of charset encodings natively accepted for requests.
65 * Set at constructor time.
68 public $accepted_charset_encodings = array();
71 * Charset encoding to be used for response.
72 * NB: if we can, we will convert the generated response from internal_encoding to the intended one.
73 * Can be: a supported xml encoding (only UTF-8 and ISO-8859-1 at present, unless mbstring is enabled),
74 * null (leave unspecified in response, convert output stream to US_ASCII),
75 * 'default' (use xmlrpc library default as specified in xmlrpc.inc, convert output stream if needed),
76 * or 'auto' (use client-specified charset encoding or same as request if request headers do not specify it (unless request is US-ASCII: then use library default anyway).
77 * NB: pretty dangerous if you accept every charset and do not have mbstring enabled)
79 public $response_charset_encoding = '';
82 * Storage for internal debug info.
84 protected $debug_info = '';
87 * Extra data passed at runtime to method handling functions. Used only by EPI layer
89 public $user_data = null;
91 protected static $_xmlrpc_debuginfo = '';
92 protected static $_xmlrpcs_occurred_errors = '';
93 protected static $_xmlrpcs_prev_ehandler = '';
96 * @param array $dispatchMap the dispatch map with definition of exposed services
97 * @param boolean $serviceNow set to false to prevent the server from running upon construction
99 public function __construct($dispatchMap = null, $serviceNow = true)
101 // if ZLIB is enabled, let the server by default accept compressed requests,
102 // and compress responses sent to clients that support them
103 if (function_exists('gzinflate')) {
104 $this->accepted_compression = array('gzip', 'deflate');
105 $this->compress_response = true;
108 // by default the xml parser can support these 3 charset encodings
109 $this->accepted_charset_encodings = array('UTF-8', 'ISO-8859-1', 'US-ASCII');
111 // dispMap is a dispatch array of methods mapped to function names and signatures.
112 // If a method doesn't appear in the map then an unknown method error is generated
113 /* milosch - changed to make passing dispMap optional.
114 * instead, you can use the class add_to_map() function
115 * to add functions manually (borrowed from SOAPX4)
118 $this->dmap = $dispatchMap;
126 * Set debug level of server.
128 * @param integer $level debug lvl: determines info added to xmlrpc responses (as xml comments)
130 * 1 = msgs set from user with debugmsg(),
131 * 2 = add complete xmlrpc request (headers and body),
132 * 3 = add also all processing warnings happened during method processing
133 * (NB: this involves setting a custom error handler, and might interfere
134 * with the standard processing of the php function exposed as method. In
135 * particular, triggering an USER_ERROR level error will not halt script
136 * execution anymore, but just end up logged in the xmlrpc response)
137 * Note that info added at level 2 and 3 will be base64 encoded
139 public function setDebug($level)
141 $this->debug = $level;
145 * Add a string to the debug info that can be later serialized by the server as part of the response message.
146 * Note that for best compatibility, the debug string should be encoded using the PhpXmlRpc::$xmlrpc_internalencoding
152 public static function xmlrpc_debugmsg($msg)
154 static::$_xmlrpc_debuginfo .= $msg . "\n";
160 public static function error_occurred($msg)
162 static::$_xmlrpcs_occurred_errors .= $msg . "\n";
166 * Return a string with the serialized representation of all debug info.
168 * @param string $charsetEncoding the target charset encoding for the serialization
170 * @return string an XML comment (or two)
172 public function serializeDebug($charsetEncoding = '')
174 // Tough encoding problem: which internal charset should we assume for debug info?
175 // It might contain a copy of raw data received from client, ie with unknown encoding,
176 // intermixed with php generated data and user generated data...
177 // so we split it: system debug is base 64 encoded,
178 // user debug info should be encoded by the end user using the INTERNAL_ENCODING
180 if ($this->debug_info != '') {
181 $out .= "<!-- SERVER DEBUG INFO (BASE64 ENCODED):\n" . base64_encode($this->debug_info) . "\n-->\n";
183 if (static::$_xmlrpc_debuginfo != '') {
184 $out .= "<!-- DEBUG INFO:\n" . Charset::instance()->encodeEntities(str_replace('--', '_-', static::$_xmlrpc_debuginfo), PhpXmlRpc::$xmlrpc_internalencoding, $charsetEncoding) . "\n-->\n";
185 // NB: a better solution MIGHT be to use CDATA, but we need to insert it
186 // into return payload AFTER the beginning tag
187 //$out .= "<![CDATA[ DEBUG INFO:\n\n" . str_replace(']]>', ']_]_>', static::$_xmlrpc_debuginfo) . "\n]]>\n";
194 * Execute the xmlrpc request, printing the response.
196 * @param string $data the request body. If null, the http POST request will be examined
197 * @param bool $returnPayload When true, return the response but do not echo it or any http header
199 * @return Response|string the response object (usually not used by caller...) or its xml serialization
201 * @throws \Exception in case the executed method does throw an exception (and depending on server configuration)
203 public function service($data = null, $returnPayload = false)
205 if ($data === null) {
206 $data = file_get_contents('php://input');
210 // reset internal debug info
211 $this->debug_info = '';
213 // Save what we received, before parsing it
214 if ($this->debug > 1) {
215 $this->debugmsg("+++GOT+++\n" . $data . "\n+++END+++");
218 $r = $this->parseRequestHeaders($data, $reqCharset, $respCharset, $respEncoding);
220 // this actually executes the request
221 $r = $this->parseRequest($data, $reqCharset);
224 // save full body of request into response, for more debugging usages
225 $r->raw_data = $rawData;
227 if ($this->debug > 2 && static::$_xmlrpcs_occurred_errors) {
228 $this->debugmsg("+++PROCESSING ERRORS AND WARNINGS+++\n" .
229 static::$_xmlrpcs_occurred_errors . "+++END+++");
232 $payload = $this->xml_header($respCharset);
233 if ($this->debug > 0) {
234 $payload = $payload . $this->serializeDebug($respCharset);
237 // Do not create response serialization if it has already happened. Helps building json magic
238 if (empty($r->payload)) {
239 $r->serialize($respCharset);
241 $payload = $payload . $r->payload;
243 if ($returnPayload) {
247 // if we get a warning/error that has output some text before here, then we cannot
248 // add a new header. We cannot say we are sending xml, either...
249 if (!headers_sent()) {
250 header('Content-Type: ' . $r->content_type);
251 // we do not know if client actually told us an accepted charset, but if he did
252 // we have to tell him what we did
253 header("Vary: Accept-Charset");
255 // http compression of output: only
256 // if we can do it, and we want to do it, and client asked us to,
257 // and php ini settings do not force it already
258 $phpNoSelfCompress = !ini_get('zlib.output_compression') && (ini_get('output_handler') != 'ob_gzhandler');
259 if ($this->compress_response && function_exists('gzencode') && $respEncoding != ''
260 && $phpNoSelfCompress
262 if (strpos($respEncoding, 'gzip') !== false) {
263 $payload = gzencode($payload);
264 header("Content-Encoding: gzip");
265 header("Vary: Accept-Encoding");
266 } elseif (strpos($respEncoding, 'deflate') !== false) {
267 $payload = gzcompress($payload);
268 header("Content-Encoding: deflate");
269 header("Vary: Accept-Encoding");
273 // do not output content-length header if php is compressing output for us:
274 // it will mess up measurements
275 if ($phpNoSelfCompress) {
276 header('Content-Length: ' . (int)strlen($payload));
279 error_log('XML-RPC: ' . __METHOD__ . ': http headers already sent before response is fully generated. Check for php warning or error messages');
284 // return request, in case subclasses want it
289 * Add a method to the dispatch map.
291 * @param string $methodName the name with which the method will be made available
292 * @param string $function the php function that will get invoked
293 * @param array $sig the array of valid method signatures
294 * @param string $doc method documentation
295 * @param array $sigDoc the array of valid method signatures docs (one string per param, one for return type)
297 public function add_to_map($methodName, $function, $sig = null, $doc = false, $sigDoc = false)
299 $this->dmap[$methodName] = array(
300 'function' => $function,
304 $this->dmap[$methodName]['signature'] = $sig;
307 $this->dmap[$methodName]['signature_docs'] = $sigDoc;
312 * Verify type and number of parameters received against a list of known signatures.
314 * @param array|Request $in array of either xmlrpc value objects or xmlrpc type definitions
315 * @param array $sigs array of known signatures to match against
319 protected function verifySignature($in, $sigs)
321 // check each possible signature in turn
322 if (is_object($in)) {
323 $numParams = $in->getNumParams();
325 $numParams = count($in);
327 foreach ($sigs as $curSig) {
328 if (count($curSig) == $numParams + 1) {
330 for ($n = 0; $n < $numParams; $n++) {
331 if (is_object($in)) {
332 $p = $in->getParam($n);
333 if ($p->kindOf() == 'scalar') {
334 $pt = $p->scalartyp();
339 $pt = ($in[$n] == 'i4') ? 'int' : strtolower($in[$n]); // dispatch maps never use i4...
342 // param index is $n+1, as first member of sig is return type
343 if ($pt != $curSig[$n + 1] && $curSig[$n + 1] != Value::$xmlrpcValue) {
346 $wanted = $curSig[$n + 1];
356 if (isset($wanted)) {
357 return array(0, "Wanted ${wanted}, got ${got} at param ${pno}");
359 return array(0, "No method signature matches number of parameters");
364 * Parse http headers received along with xmlrpc request. If needed, inflate request.
366 * @return mixed Response|null on success or an error Response
368 protected function parseRequestHeaders(&$data, &$reqEncoding, &$respEncoding, &$respCompression)
370 // check if $_SERVER is populated: it might have been disabled via ini file
371 // (this is true even when in CLI mode)
372 if (count($_SERVER) == 0) {
373 error_log('XML-RPC: ' . __METHOD__ . ': cannot parse request headers as $_SERVER is not populated');
376 if ($this->debug > 1) {
377 if (function_exists('getallheaders')) {
378 $this->debugmsg(''); // empty line
379 foreach (getallheaders() as $name => $val) {
380 $this->debugmsg("HEADER: $name: $val");
385 if (isset($_SERVER['HTTP_CONTENT_ENCODING'])) {
386 $contentEncoding = str_replace('x-', '', $_SERVER['HTTP_CONTENT_ENCODING']);
388 $contentEncoding = '';
391 // check if request body has been compressed and decompress it
392 if ($contentEncoding != '' && strlen($data)) {
393 if ($contentEncoding == 'deflate' || $contentEncoding == 'gzip') {
394 // if decoding works, use it. else assume data wasn't gzencoded
395 if (function_exists('gzinflate') && in_array($contentEncoding, $this->accepted_compression)) {
396 if ($contentEncoding == 'deflate' && $degzdata = @gzuncompress($data)) {
398 if ($this->debug > 1) {
399 $this->debugmsg("\n+++INFLATED REQUEST+++[" . strlen($data) . " chars]+++\n" . $data . "\n+++END+++");
401 } elseif ($contentEncoding == 'gzip' && $degzdata = @gzinflate(substr($data, 10))) {
403 if ($this->debug > 1) {
404 $this->debugmsg("+++INFLATED REQUEST+++[" . strlen($data) . " chars]+++\n" . $data . "\n+++END+++");
407 $r = new Response(0, PhpXmlRpc::$xmlrpcerr['server_decompress_fail'], PhpXmlRpc::$xmlrpcstr['server_decompress_fail']);
412 $r = new Response(0, PhpXmlRpc::$xmlrpcerr['server_cannot_decompress'], PhpXmlRpc::$xmlrpcstr['server_cannot_decompress']);
419 // check if client specified accepted charsets, and if we know how to fulfill
421 if ($this->response_charset_encoding == 'auto') {
423 if (isset($_SERVER['HTTP_ACCEPT_CHARSET'])) {
424 // here we should check if we can match the client-requested encoding
425 // with the encodings we know we can generate.
426 /// @todo we should parse q=0.x preferences instead of getting first charset specified...
427 $clientAcceptedCharsets = explode(',', strtoupper($_SERVER['HTTP_ACCEPT_CHARSET']));
428 // Give preference to internal encoding
429 $knownCharsets = array(PhpXmlRpc::$xmlrpc_internalencoding, 'UTF-8', 'ISO-8859-1', 'US-ASCII');
430 foreach ($knownCharsets as $charset) {
431 foreach ($clientAcceptedCharsets as $accepted) {
432 if (strpos($accepted, $charset) === 0) {
433 $respEncoding = $charset;
443 $respEncoding = $this->response_charset_encoding;
446 if (isset($_SERVER['HTTP_ACCEPT_ENCODING'])) {
447 $respCompression = $_SERVER['HTTP_ACCEPT_ENCODING'];
449 $respCompression = '';
452 // 'guestimate' request encoding
453 /// @todo check if mbstring is enabled and automagic input conversion is on: it might mingle with this check???
454 $reqEncoding = XMLParser::guessEncoding(isset($_SERVER['CONTENT_TYPE']) ? $_SERVER['CONTENT_TYPE'] : '',
461 * Parse an xml chunk containing an xmlrpc request and execute the corresponding
462 * php function registered with the server.
464 * @param string $data the xml request
465 * @param string $reqEncoding (optional) the charset encoding of the xml request
469 * @throws \Exception in case the executed method does throw an exception (and depending on server configuration)
471 public function parseRequest($data, $reqEncoding = '')
473 // decompose incoming XML into request structure
475 if ($reqEncoding != '') {
476 // Since parsing will fail if charset is not specified in the xml prologue,
477 // the encoding is not UTF8 and there are non-ascii chars in the text, we try to work round that...
478 // The following code might be better for mb_string enabled installs, but
479 // makes the lib about 200% slower...
480 //if (!is_valid_charset($reqEncoding, array('UTF-8')))
481 if (!in_array($reqEncoding, array('UTF-8', 'US-ASCII')) && !XMLParser::hasEncoding($data)) {
482 if ($reqEncoding == 'ISO-8859-1') {
483 $data = utf8_encode($data);
485 if (extension_loaded('mbstring')) {
486 $data = mb_convert_encoding($data, 'UTF-8', $reqEncoding);
488 error_log('XML-RPC: ' . __METHOD__ . ': invalid charset encoding of received request: ' . $reqEncoding);
494 // PHP internally might use ISO-8859-1, so we have to tell the xml parser to give us back data in the expected charset.
495 // What if internal encoding is not in one of the 3 allowed? We use the broadest one, ie. utf8
496 // This allows to send data which is native in various charset,
497 // by extending xmlrpc_encode_entities() and setting xmlrpc_internalencoding
498 if (!in_array(PhpXmlRpc::$xmlrpc_internalencoding, array('UTF-8', 'ISO-8859-1', 'US-ASCII'))) {
499 $options = array(XML_OPTION_TARGET_ENCODING => 'UTF-8');
501 $options = array(XML_OPTION_TARGET_ENCODING => PhpXmlRpc::$xmlrpc_internalencoding);
504 $xmlRpcParser = new XMLParser($options);
505 $xmlRpcParser->parse($data, $this->functions_parameters_type, XMLParser::ACCEPT_REQUEST);
506 if ($xmlRpcParser->_xh['isf'] > 2) {
507 // (BC) we return XML error as a faultCode
508 preg_match('/^XML error ([0-9]+)/', $xmlRpcParser->_xh['isf_reason'], $matches);
510 PhpXmlRpc::$xmlrpcerrxml + $matches[1],
511 $xmlRpcParser->_xh['isf_reason']);
512 } elseif ($xmlRpcParser->_xh['isf']) {
514 PhpXmlRpc::$xmlrpcerr['invalid_request'],
515 PhpXmlRpc::$xmlrpcstr['invalid_request'] . ' ' . $xmlRpcParser->_xh['isf_reason']);
517 // small layering violation in favor of speed and memory usage:
518 // we should allow the 'execute' method handle this, but in the
519 // most common scenario (xmlrpc values type server with some methods
520 // registered as phpvals) that would mean a useless encode+decode pass
521 if ($this->functions_parameters_type != 'xmlrpcvals' ||
522 (isset($this->dmap[$xmlRpcParser->_xh['method']]['parameters_type']) &&
523 ($this->dmap[$xmlRpcParser->_xh['method']]['parameters_type'] == 'phpvals')
526 if ($this->debug > 1) {
527 $this->debugmsg("\n+++PARSED+++\n" . var_export($xmlRpcParser->_xh['params'], true) . "\n+++END+++");
529 $r = $this->execute($xmlRpcParser->_xh['method'], $xmlRpcParser->_xh['params'], $xmlRpcParser->_xh['pt']);
531 // build a Request object with data parsed from xml
532 $req = new Request($xmlRpcParser->_xh['method']);
533 // now add parameters in
534 for ($i = 0; $i < count($xmlRpcParser->_xh['params']); $i++) {
535 $req->addParam($xmlRpcParser->_xh['params'][$i]);
538 if ($this->debug > 1) {
539 $this->debugmsg("\n+++PARSED+++\n" . var_export($req, true) . "\n+++END+++");
541 $r = $this->execute($req);
549 * Execute a method invoked by the client, checking parameters used.
551 * @param mixed $req either a Request obj or a method name
552 * @param array $params array with method parameters as php types (if m is method name only)
553 * @param array $paramTypes array with xmlrpc types of method parameters (if m is method name only)
557 * @throws \Exception in case the executed method does throw an exception (and depending on server configuration)
559 protected function execute($req, $params = null, $paramTypes = null)
561 static::$_xmlrpcs_occurred_errors = '';
562 static::$_xmlrpc_debuginfo = '';
564 if (is_object($req)) {
565 $methName = $req->method();
569 $sysCall = $this->allow_system_funcs && (strpos($methName, "system.") === 0);
570 $dmap = $sysCall ? $this->getSystemDispatchMap() : $this->dmap;
572 if (!isset($dmap[$methName]['function'])) {
574 return new Response(0,
575 PhpXmlRpc::$xmlrpcerr['unknown_method'],
576 PhpXmlRpc::$xmlrpcstr['unknown_method']);
580 if (isset($dmap[$methName]['signature'])) {
581 $sig = $dmap[$methName]['signature'];
582 if (is_object($req)) {
583 list($ok, $errStr) = $this->verifySignature($req, $sig);
585 list($ok, $errStr) = $this->verifySignature($paramTypes, $sig);
591 PhpXmlRpc::$xmlrpcerr['incorrect_params'],
592 PhpXmlRpc::$xmlrpcstr['incorrect_params'] . ": ${errStr}"
597 $func = $dmap[$methName]['function'];
598 // let the 'class::function' syntax be accepted in dispatch maps
599 if (is_string($func) && strpos($func, '::')) {
600 $func = explode('::', $func);
603 if (is_array($func)) {
604 if (is_object($func[0])) {
605 $funcName = get_class($func[0]) . '->' . $func[1];
607 $funcName = implode('::', $func);
609 } else if ($func instanceof \Closure) {
610 $funcName = 'Closure';
615 // verify that function to be invoked is in fact callable
616 if (!is_callable($func)) {
617 error_log("XML-RPC: " . __METHOD__ . ": function '$funcName' registered as method handler is not callable");
620 PhpXmlRpc::$xmlrpcerr['server_error'],
621 PhpXmlRpc::$xmlrpcstr['server_error'] . ": no function matches method"
625 // If debug level is 3, we should catch all errors generated during
626 // processing of user function, and log them as part of response
627 if ($this->debug > 2) {
628 self::$_xmlrpcs_prev_ehandler = set_error_handler(array('\PhpXmlRpc\Server', '_xmlrpcs_errorHandler'));
632 // Allow mixed-convention servers
633 if (is_object($req)) {
635 $r = call_user_func($func, $this, $req);
637 $r = call_user_func($func, $req);
639 if (!is_a($r, 'PhpXmlRpc\Response')) {
640 error_log("XML-RPC: " . __METHOD__ . ": function '$funcName' registered as method handler does not return an xmlrpc response object but a " . gettype($r));
641 if (is_a($r, 'PhpXmlRpc\Value')) {
642 $r = new Response($r);
646 PhpXmlRpc::$xmlrpcerr['server_error'],
647 PhpXmlRpc::$xmlrpcstr['server_error'] . ": function does not return xmlrpc response object"
652 // call a 'plain php' function
654 array_unshift($params, $this);
655 $r = call_user_func_array($func, $params);
657 // 3rd API convention for method-handling functions: EPI-style
658 if ($this->functions_parameters_type == 'epivals') {
659 $r = call_user_func_array($func, array($methName, $params, $this->user_data));
660 // mimic EPI behaviour: if we get an array that looks like an error, make it
662 if (is_array($r) && array_key_exists('faultCode', $r) && array_key_exists('faultString', $r)) {
663 $r = new Response(0, (integer)$r['faultCode'], (string)$r['faultString']);
665 // functions using EPI api should NOT return resp objects,
666 // so make sure we encode the return type correctly
667 $encoder = new Encoder();
668 $r = new Response($encoder->encode($r, array('extension_api')));
671 $r = call_user_func_array($func, $params);
674 // the return type can be either a Response object or a plain php value...
675 if (!is_a($r, '\PhpXmlRpc\Response')) {
676 // what should we assume here about automatic encoding of datetimes
677 // and php classes instances???
678 $encoder = new Encoder();
679 $r = new Response($encoder->encode($r, $this->phpvals_encoding_options));
682 } catch (\Exception $e) {
683 // (barring errors in the lib) an uncatched exception happened
684 // in the called function, we wrap it in a proper error-response
685 switch ($this->exception_handling) {
687 if ($this->debug > 2) {
688 if (self::$_xmlrpcs_prev_ehandler) {
689 set_error_handler(self::$_xmlrpcs_prev_ehandler);
691 restore_error_handler();
697 $r = new Response(0, $e->getCode(), $e->getMessage());
700 $r = new Response(0, PhpXmlRpc::$xmlrpcerr['server_error'], PhpXmlRpc::$xmlrpcstr['server_error']);
703 if ($this->debug > 2) {
704 // note: restore the error handler we found before calling the
705 // user func, even if it has been changed inside the func itself
706 if (self::$_xmlrpcs_prev_ehandler) {
707 set_error_handler(self::$_xmlrpcs_prev_ehandler);
709 restore_error_handler();
717 * Add a string to the 'internal debug message' (separate from 'user debug message').
719 * @param string $string
721 protected function debugmsg($string)
723 $this->debug_info .= $string . "\n";
727 * @param string $charsetEncoding
730 protected function xml_header($charsetEncoding = '')
732 if ($charsetEncoding != '') {
733 return "<?xml version=\"1.0\" encoding=\"$charsetEncoding\"?" . ">\n";
735 return "<?xml version=\"1.0\"?" . ">\n";
739 /* Functions that implement system.XXX methods of xmlrpc servers */
744 public function getSystemDispatchMap()
747 'system.listMethods' => array(
748 'function' => 'PhpXmlRpc\Server::_xmlrpcs_listMethods',
749 // listMethods: signature was either a string, or nothing.
750 // The useless string variant has been removed
751 'signature' => array(array(Value::$xmlrpcArray)),
752 'docstring' => 'This method lists all the methods that the XML-RPC server knows how to dispatch',
753 'signature_docs' => array(array('list of method names')),
755 'system.methodHelp' => array(
756 'function' => 'PhpXmlRpc\Server::_xmlrpcs_methodHelp',
757 'signature' => array(array(Value::$xmlrpcString, Value::$xmlrpcString)),
758 'docstring' => 'Returns help text if defined for the method passed, otherwise returns an empty string',
759 'signature_docs' => array(array('method description', 'name of the method to be described')),
761 'system.methodSignature' => array(
762 'function' => 'PhpXmlRpc\Server::_xmlrpcs_methodSignature',
763 'signature' => array(array(Value::$xmlrpcArray, Value::$xmlrpcString)),
764 'docstring' => 'Returns an array of known signatures (an array of arrays) for the method name passed. If no signatures are known, returns a none-array (test for type != array to detect missing signature)',
765 'signature_docs' => array(array('list of known signatures, each sig being an array of xmlrpc type names', 'name of method to be described')),
767 'system.multicall' => array(
768 'function' => 'PhpXmlRpc\Server::_xmlrpcs_multicall',
769 'signature' => array(array(Value::$xmlrpcArray, Value::$xmlrpcArray)),
770 'docstring' => 'Boxcar multiple RPC calls in one request. See http://www.xmlrpc.com/discuss/msgReader$1208 for details',
771 'signature_docs' => array(array('list of response structs, where each struct has the usual members', 'list of calls, with each call being represented as a struct, with members "methodname" and "params"')),
773 'system.getCapabilities' => array(
774 'function' => 'PhpXmlRpc\Server::_xmlrpcs_getCapabilities',
775 'signature' => array(array(Value::$xmlrpcStruct)),
776 'docstring' => 'This method lists all the capabilites that the XML-RPC server has: the (more or less standard) extensions to the xmlrpc spec that it adheres to',
777 'signature_docs' => array(array('list of capabilities, described as structs with a version number and url for the spec')),
785 public function getCapabilities()
788 // xmlrpc spec: always supported
790 'specUrl' => 'http://www.xmlrpc.com/spec',
793 // if we support system.xxx functions, we always support multicall, too...
794 // Note that, as of 2006/09/17, the following URL does not respond anymore
795 'system.multicall' => array(
796 'specUrl' => 'http://www.xmlrpc.com/discuss/msgReader$1208',
799 // introspection: version 2! we support 'mixed', too
800 'introspection' => array(
801 'specUrl' => 'http://phpxmlrpc.sourceforge.net/doc-2/ch10.html',
807 if (PhpXmlRpc::$xmlrpc_null_extension) {
808 $outAr['nil'] = array(
809 'specUrl' => 'http://www.ontosys.com/xml-rpc/extensions.php',
818 * @param Server $server
819 * @param Request $req
822 public static function _xmlrpcs_getCapabilities($server, $req = null)
824 $encoder = new Encoder();
825 return new Response($encoder->encode($server->getCapabilities()));
829 * @param Server $server
830 * @param Request $req if called in plain php values mode, second param is missing
833 public static function _xmlrpcs_listMethods($server, $req = null)
836 foreach ($server->dmap as $key => $val) {
837 $outAr[] = new Value($key, 'string');
839 if ($server->allow_system_funcs) {
840 foreach ($server->getSystemDispatchMap() as $key => $val) {
841 $outAr[] = new Value($key, 'string');
845 return new Response(new Value($outAr, 'array'));
849 * @param Server $server
850 * @param Request $req
853 public static function _xmlrpcs_methodSignature($server, $req)
855 // let accept as parameter both an xmlrpc value or string
856 if (is_object($req)) {
857 $methName = $req->getParam(0);
858 $methName = $methName->scalarval();
862 if (strpos($methName, "system.") === 0) {
863 $dmap = $server->getSystemDispatchMap();
865 $dmap = $server->dmap;
867 if (isset($dmap[$methName])) {
868 if (isset($dmap[$methName]['signature'])) {
870 foreach ($dmap[$methName]['signature'] as $inSig) {
872 foreach ($inSig as $sig) {
873 $curSig[] = new Value($sig, 'string');
875 $sigs[] = new Value($curSig, 'array');
877 $r = new Response(new Value($sigs, 'array'));
879 // NB: according to the official docs, we should be returning a
880 // "none-array" here, which means not-an-array
881 $r = new Response(new Value('undef', 'string'));
884 $r = new Response(0, PhpXmlRpc::$xmlrpcerr['introspect_unknown'], PhpXmlRpc::$xmlrpcstr['introspect_unknown']);
891 * @param Server $server
892 * @param Request $req
895 public static function _xmlrpcs_methodHelp($server, $req)
897 // let accept as parameter both an xmlrpc value or string
898 if (is_object($req)) {
899 $methName = $req->getParam(0);
900 $methName = $methName->scalarval();
904 if (strpos($methName, "system.") === 0) {
905 $dmap = $server->getSystemDispatchMap();
907 $dmap = $server->dmap;
909 if (isset($dmap[$methName])) {
910 if (isset($dmap[$methName]['docstring'])) {
911 $r = new Response(new Value($dmap[$methName]['docstring']), 'string');
913 $r = new Response(new Value('', 'string'));
916 $r = new Response(0, PhpXmlRpc::$xmlrpcerr['introspect_unknown'], PhpXmlRpc::$xmlrpcstr['introspect_unknown']);
922 public static function _xmlrpcs_multicall_error($err)
924 if (is_string($err)) {
925 $str = PhpXmlRpc::$xmlrpcstr["multicall_${err}"];
926 $code = PhpXmlRpc::$xmlrpcerr["multicall_${err}"];
928 $code = $err->faultCode();
929 $str = $err->faultString();
932 $struct['faultCode'] = new Value($code, 'int');
933 $struct['faultString'] = new Value($str, 'string');
935 return new Value($struct, 'struct');
939 * @param Server $server
943 public static function _xmlrpcs_multicall_do_call($server, $call)
945 if ($call->kindOf() != 'struct') {
946 return static::_xmlrpcs_multicall_error('notstruct');
948 $methName = @$call['methodName'];
950 return static::_xmlrpcs_multicall_error('nomethod');
952 if ($methName->kindOf() != 'scalar' || $methName->scalartyp() != 'string') {
953 return static::_xmlrpcs_multicall_error('notstring');
955 if ($methName->scalarval() == 'system.multicall') {
956 return static::_xmlrpcs_multicall_error('recursion');
959 $params = @$call['params'];
961 return static::_xmlrpcs_multicall_error('noparams');
963 if ($params->kindOf() != 'array') {
964 return static::_xmlrpcs_multicall_error('notarray');
967 $req = new Request($methName->scalarval());
968 foreach($params as $i => $param) {
969 if (!$req->addParam($param)) {
970 $i++; // for error message, we count params from 1
971 return static::_xmlrpcs_multicall_error(new Response(0,
972 PhpXmlRpc::$xmlrpcerr['incorrect_params'],
973 PhpXmlRpc::$xmlrpcstr['incorrect_params'] . ": probable xml error in param " . $i));
977 $result = $server->execute($req);
979 if ($result->faultCode() != 0) {
980 return static::_xmlrpcs_multicall_error($result); // Method returned fault.
983 return new Value(array($result->value()), 'array');
987 * @param Server $server
991 public static function _xmlrpcs_multicall_do_call_phpvals($server, $call)
993 if (!is_array($call)) {
994 return static::_xmlrpcs_multicall_error('notstruct');
996 if (!array_key_exists('methodName', $call)) {
997 return static::_xmlrpcs_multicall_error('nomethod');
999 if (!is_string($call['methodName'])) {
1000 return static::_xmlrpcs_multicall_error('notstring');
1002 if ($call['methodName'] == 'system.multicall') {
1003 return static::_xmlrpcs_multicall_error('recursion');
1005 if (!array_key_exists('params', $call)) {
1006 return static::_xmlrpcs_multicall_error('noparams');
1008 if (!is_array($call['params'])) {
1009 return static::_xmlrpcs_multicall_error('notarray');
1012 // this is a real dirty and simplistic hack, since we might have received a
1013 // base64 or datetime values, but they will be listed as strings here...
1015 $wrapper = new Wrapper();
1016 foreach ($call['params'] as $val) {
1017 $pt[] = $wrapper->php2XmlrpcType(gettype($val));
1020 $result = $server->execute($call['methodName'], $call['params'], $pt);
1022 if ($result->faultCode() != 0) {
1023 return static::_xmlrpcs_multicall_error($result); // Method returned fault.
1026 return new Value(array($result->value()), 'array');
1030 * @param Server $server
1031 * @param Request|array $req
1034 public static function _xmlrpcs_multicall($server, $req)
1037 // let accept a plain list of php parameters, beside a single xmlrpc msg object
1038 if (is_object($req)) {
1039 $calls = $req->getParam(0);
1040 foreach($calls as $call) {
1041 $result[] = static::_xmlrpcs_multicall_do_call($server, $call);
1044 $numCalls = count($req);
1045 for ($i = 0; $i < $numCalls; $i++) {
1046 $result[$i] = static::_xmlrpcs_multicall_do_call_phpvals($server, $req[$i]);
1050 return new Response(new Value($result, 'array'));
1054 * Error handler used to track errors that occur during server-side execution of PHP code.
1055 * This allows to report back to the client whether an internal error has occurred or not
1056 * using an xmlrpc response object, instead of letting the client deal with the html junk
1057 * that a PHP execution error on the server generally entails.
1059 * NB: in fact a user defined error handler can only handle WARNING, NOTICE and USER_* errors.
1061 public static function _xmlrpcs_errorHandler($errCode, $errString, $filename = null, $lineNo = null, $context = null)
1063 // obey the @ protocol
1064 if (error_reporting() == 0) {
1068 //if($errCode != E_NOTICE && $errCode != E_WARNING && $errCode != E_USER_NOTICE && $errCode != E_USER_WARNING)
1069 if ($errCode != E_STRICT) {
1070 \PhpXmlRpc\Server::error_occurred($errString);
1072 // Try to avoid as much as possible disruption to the previous error handling
1073 // mechanism in place
1074 if (self::$_xmlrpcs_prev_ehandler == '') {
1075 // The previous error handler was the default: all we should do is log error
1076 // to the default error log (if level high enough)
1077 if (ini_get('log_errors') && (intval(ini_get('error_reporting')) & $errCode)) {
1078 error_log($errString);
1081 // Pass control on to previous error handler, trying to avoid loops...
1082 if (self::$_xmlrpcs_prev_ehandler != array('\PhpXmlRpc\Server', '_xmlrpcs_errorHandler')) {
1083 if (is_array(self::$_xmlrpcs_prev_ehandler)) {
1084 // the following works both with static class methods and plain object methods as error handler
1085 call_user_func_array(self::$_xmlrpcs_prev_ehandler, array($errCode, $errString, $filename, $lineNo, $context));
1087 $method = self::$_xmlrpcs_prev_ehandler;
1088 $method($errCode, $errString, $filename, $lineNo, $context);