2 // $Id: xmlrpcs.inc 144 2007-03-28 07:52:20Z thierry $
5 * The main entry point for XML-RPC requests.
8 * Array of external XML-RPC method names with the callbacks they map to.
10 function xmlrpc_server($callbacks) {
11 $xmlrpc_server = new stdClass();
12 // Define built-in XML-RPC method names
14 'system.multicall' => 'xmlrpc_server_multicall',
16 'system.methodSignature',
17 'xmlrpc_server_method_signature',
18 array('array', 'string'),
19 'Returns an array describing the return type and required parameters of a method.'
22 'system.getCapabilities',
23 'xmlrpc_server_get_capabilities',
25 'Returns a struct describing the XML-RPC specifications supported by this server.'
29 'xmlrpc_server_list_methods',
31 'Returns an array of available methods on this server.'),
34 'xmlrpc_server_method_help',
35 array('string', 'string'),
36 'Returns a documentation string for the specified method.')
38 // We build an array of all method names by combining the built-ins
39 // with those defined by modules implementing the _xmlrpc hook.
40 // Built-in methods are overridable.
41 foreach (array_merge($defaults, (array)$callbacks) as $key => $callback) {
42 // we could check for is_array($callback)
44 $method = $callback[0];
45 $xmlrpc_server->callbacks[$method] = $callback[1];
46 $xmlrpc_server->signatures[$method] = $callback[2];
47 $xmlrpc_server->help[$method] = $callback[3];
50 $xmlrpc_server->callbacks[$key] = $callback;
51 $xmlrpc_server->signatures[$key] = '';
52 $xmlrpc_server->help[$key] = '';
56 $data = file_get_contents('php://input');
58 die('XML-RPC server accepts POST requests only.');
60 $xmlrpc_server->message = xmlrpc_message($data);
61 if (!xmlrpc_message_parse($xmlrpc_server->message)) {
62 xmlrpc_server_error(-32700, t('Parse error. Request not well formed.'));
64 if ($xmlrpc_server->message->messagetype != 'methodCall') {
65 xmlrpc_server_error(-32600, t('Server error. Invalid XML-RPC. Request must be a methodCall.'));
67 xmlrpc_server_set($xmlrpc_server);
68 $result = xmlrpc_server_call($xmlrpc_server, $xmlrpc_server->message->methodname, $xmlrpc_server->message->params);
70 if ($result->is_error) {
71 xmlrpc_server_error($result);
74 $r = xmlrpc_value($result);
81 xmlrpc_value_get_xml($r)
89 xmlrpc_server_output($xml);
93 * Throw an XML-RPC error.
96 * an error object OR integer error code
98 * description of error, used only if integer error code was passed
100 function xmlrpc_server_error($error, $message = false) {
101 if ($message && !is_object($error)) {
102 $error = xmlrpc_error($error, $message);
104 xmlrpc_server_output(xmlrpc_error_get_xml($error));
107 function xmlrpc_server_output($xml) {
108 $xml = '<?xml version="1.0"?>'."\n". $xml;
109 header('Connection: close');
110 header('Content-Length: '. strlen($xml));
111 header('Content-Type: text/xml');
112 header('Date: '.date('r'));
118 * Store a copy of the request temporarily.
120 * @param $xmlrpc_server
121 * Request object created by xmlrpc_server().
123 function xmlrpc_server_set($xmlrpc_server = NULL) {
125 if (!isset($server)) {
126 $server = $xmlrpc_server;
131 // Retrieve the stored request.
132 function xmlrpc_server_get() {
133 return xmlrpc_server_set();
137 * Dispatch the request and any parameters to the appropriate handler.
139 * @param $xmlrpc_server
141 * The external XML-RPC method name, e.g. 'system.methodHelp'
143 * Array containing any parameters that were sent along with the request.
145 function xmlrpc_server_call($xmlrpc_server, $methodname, $args) {
146 // Make sure parameters are in an array
147 if ($args && !is_array($args)) {
148 $args = array($args);
150 // Has this method been mapped to a Drupal function by us or by modules?
151 if (!isset($xmlrpc_server->callbacks[$methodname])) {
152 return xmlrpc_error(-32601, t('Server error. Requested method %methodname not specified.', array("%methodname" => $xmlrpc_server->message->methodname)));
154 $method = $xmlrpc_server->callbacks[$methodname];
155 $signature = $xmlrpc_server->signatures[$methodname];
157 // If the method has a signature, validate the request against the signature
158 if (is_array($signature)) {
160 $return_type = array_shift($signature);
161 // Check the number of arguments
162 if (count($args) != count($signature)) {
163 return xmlrpc_error(-32602, t('Server error. Wrong number of method parameters.'));
165 // Check the argument types
166 foreach ($signature as $key => $type) {
171 if (is_array($arg) || !is_int($arg)) {
177 if (!is_string($arg)) {
182 if ($arg !== false && $arg !== true) {
188 if (!is_float($arg)) {
193 case 'dateTime.iso8601':
194 if (!$arg->is_date) {
200 return xmlrpc_error(-32602, t('Server error. Invalid method parameters.'));
205 if (count($args) == 1) {
206 // If only one parameter just send that instead of the whole array
210 if (!function_exists($method)) {
211 return xmlrpc_error(-32601, t('Server error. Requested function %method does not exist.', array("%method" => $method)));
213 // Call the mapped function
214 return call_user_func_array($method, $args);
217 function xmlrpc_server_multicall($methodcalls) {
218 // See http://www.xmlrpc.com/discuss/msgReader$1208
220 $xmlrpc_server = xmlrpc_server_get();
221 foreach ($methodcalls as $call) {
223 if (!isset($call['methodName']) || !isset($call['params'])) {
224 $result = xmlrpc_error(3, t('Invalid syntax for system.multicall.'));
227 $method = $call['methodName'];
228 $params = $call['params'];
229 if ($method == 'system.multicall') {
230 $result = xmlrpc_error(-32600, t('Recursive calls to system.multicall are forbidden.'));
233 $result = xmlrpc_server_call($xmlrpc_server, $method, $params);
235 if ($result->is_error) {
237 'faultCode' => $result->code,
238 'faultString' => $result->message
250 * XML-RPC method system.listMethods maps to this function.
252 function xmlrpc_server_list_methods() {
253 $xmlrpc_server = xmlrpc_server_get();
254 return array_keys($xmlrpc_server->callbacks);
258 * XML-RPC method system.getCapabilities maps to this function.
259 * See http://groups.yahoo.com/group/xml-rpc/message/2897
261 function xmlrpc_server_get_capabilities() {
264 'specUrl' => 'http://www.xmlrpc.com/spec',
267 'faults_interop' => array(
268 'specUrl' => 'http://xmlrpc-epi.sourceforge.net/specs/rfc.fault_codes.php',
269 'specVersion' => 20010516
271 'system.multicall' => array(
272 'specUrl' => 'http://www.xmlrpc.com/discuss/msgReader$1208',
275 'introspection' => array(
276 'specUrl' => 'http://scripts.incutio.com/xmlrpc/introspection.html',
283 * XML-RPC method system.methodSignature maps to this function.
286 * Name of method for which we return a method signature.
288 * An array of types representing the method signature of the
289 * function that the methodname maps to. The methodSignature of
290 * this function is 'array', 'string' because it takes an array
291 * and returns a string.
293 function xmlrpc_server_method_signature($methodname) {
294 $xmlrpc_server = xmlrpc_server_get();
295 if (!isset($xmlrpc_server->callbacks[$methodname])) {
296 return xmlrpc_error(-32601, t('Server error. Requested method %methodname not specified.', array("%methodname" => $methodname)));
298 if (!is_array($xmlrpc_server->signatures[$methodname])) {
299 return xmlrpc_error(-32601, t('Server error. Requested method %methodname signature not specified.', array("%methodname" => $methodname)));
303 foreach ($xmlrpc_server->signatures[$methodname] as $type) {
310 * XML-RPC method system.methodHelp maps to this function.
313 * Name of method for which we return a help string.
315 function xmlrpc_server_method_help($method) {
316 $xmlrpc_server = xmlrpc_server_get();
317 return $xmlrpc_server->help[$method];