mnet: core libraries and admin pages
[moodle.git] / mnet / xmlrpc / server.php
CommitLineData
71558f85 1<?php
2/**
3 * An XML-RPC server
4 *
5 * @author Donal McMullan donal@catalyst.net.nz
6 * @version 0.0.1
7 * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
8 * @package mnet
9 */
10
11// Make certain that config.php doesn't display any errors, and that it doesn't
12// override our do-not-display-errors setting:
13ini_set('display_errors',0);
14require_once(dirname(dirname(dirname(__FILE__))) . '/config.php');
15ini_set('display_errors',0);
16
17// Include MNET stuff:
18require_once $CFG->dirroot.'/mnet/lib.php';
19require_once $CFG->dirroot.'/mnet/remote_client.php';
20
21// Content type for output is not html:
22header('Content-type: text/xml');
23
24if (!empty($CFG->mnet_rpcdebug)) {
25 trigger_error("HTTP_RAW_POST_DATA");
26 trigger_error($HTTP_RAW_POST_DATA);
27}
28
29// New global variable which ONLY gets set in this server page, so you know that
30// if you've been called by a remote Moodle, this should be set:
31$MNET_REMOTE_CLIENT = new mnet_remote_client();
32
33// Peek at the message to see if it's an XML-ENC document. If it is, note that
34// the client connection was encrypted, and strip the xml-encryption and
35// xml-signature wrappers from the XML-RPC payload
36if (strpos(substr($HTTP_RAW_POST_DATA, 0, 100), '<encryptedMessage>')) {
37 $MNET_REMOTE_CLIENT->was_encrypted();
38// Extract the XML-RPC payload from the XML-ENC and XML-SIG wrappers.
39 $payload = mnet_server_strip_wrappers($HTTP_RAW_POST_DATA);
40} else {
41 $params = xmlrpc_decode_request($HTTP_RAW_POST_DATA, $method);
42 if ($method == 'system.keyswap' ||
43 $method == 'system/keyswap') {
44
45 // OK
46
47 } elseif ($MNET_REMOTE_CLIENT->plaintext_is_ok() == false) {
48 exit(mnet_server_fault(7021, 'forbidden-transport'));
49 }
50 // Looks like plaintext is ok. It is assumed that a plaintext call:
51 // 1. Came from a trusted host on your local network
52 // 2. Is *not* from a Moodle - otherwise why skip encryption/signing?
53 // 3. Is free to execute ANY function in Moodle
54 // 4. Cannot execute any methods (as it can't instantiate a class first)
55 // To execute a method, you'll need to create a wrapper function that first
56 // instantiates the class, and then calls the method.
57 $payload = $HTTP_RAW_POST_DATA;
58}
59
60if (!empty($CFG->mnet_rpcdebug)) {
61 trigger_error("XMLRPC Payload");
62 trigger_error(print_r($payload,1));
63}
64
65// Parse and action the XML-RPC payload
66$response = mnet_server_dispatch($payload);
67
68/**
69 * Strip the encryption (XML-ENC) and signature (XML-SIG) wrappers and return the XML-RPC payload
70 *
71 * IF COMMUNICATION TAKES PLACE OVER UNENCRYPTED HTTP:
72 * The payload will have been encrypted with a symmetric key. This key will
73 * itself have been encrypted using your public key. The key is decrypted using
74 * your private key, and then used to decrypt the XML payload.
75 *
76 * IF COMMUNICATION TAKES PLACE OVER UNENCRYPTED HTTP *OR* ENCRYPTED HTTPS:
77 * In either case, there will be an XML wrapper which contains your XML-RPC doc
78 * as an object element, a signature for that doc, and various standards-
79 * compliant info to aid in verifying the signature.
80 *
81 * This function parses the encryption wrapper, decrypts the contents, parses
82 * the signature wrapper, and if the signature matches the payload, it returns
83 * the payload, which should be an XML-RPC request.
84 * If there is an error, or the signatures don't match, it echoes an XML-RPC
85 * error and exits.
86 *
87 * See the W3C's {@link http://www.w3.org/TR/xmlenc-core/ XML Encryption Syntax and Processing}
88 * and {@link http://www.w3.org/TR/2001/PR-xmldsig-core-20010820/ XML-Signature Syntax and Processing}
89 * guidelines for more detail on the XML.
90 *
91 * -----XML-Envelope---------------------------------
92 * | |
93 * | Encrypted-Symmetric-key---------------- |
94 * | |_____________________________________| |
95 * | |
96 * | Encrypted data------------------------- |
97 * | | | |
98 * | | -XML-Envelope------------------ | |
99 * | | | | | |
100 * | | | --Signature------------- | | |
101 * | | | |______________________| | | |
102 * | | | | | |
103 * | | | --Signed-Payload-------- | | |
104 * | | | | | | | |
105 * | | | | XML-RPC Request | | | |
106 * | | | |______________________| | | |
107 * | | | | | |
108 * | | |_____________________________| | |
109 * | |_____________________________________| |
110 * | |
111 * |________________________________________________|
112 *
113 * @uses $db
114 * @param string $HTTP_RAW_POST_DATA The XML that the client sent
115 * @return string The XMLRPC payload.
116 */
117function mnet_server_strip_wrappers($HTTP_RAW_POST_DATA) {
118 global $MNET, $MNET_REMOTE_CLIENT;
119 if (isset($_SERVER)) {
120
121 $crypt_parser = new mnet_encxml_parser();
122 $crypt_parser->parse($HTTP_RAW_POST_DATA);
123
124 if ($crypt_parser->payload_encrypted) {
125
126 $key = array_pop($crypt_parser->cipher);
127 $data = array_pop($crypt_parser->cipher);
128
129 $crypt_parser->free_resource();
130
131 // Initialize payload var
132 $payload = '';
133
134 // &$payload
135 $isOpen = openssl_open(base64_decode($data), $payload, base64_decode($key), $MNET->get_private_key());
136
137 if (!$isOpen) {
138 exit(mnet_server_fault(7023, 'encryption-invalid'));
139 }
140
141 if (strpos(substr($payload, 0, 100), '<signedMessage>')) {
142 $MNET_REMOTE_CLIENT->was_signed();
143 $sig_parser = new mnet_encxml_parser();
144 $sig_parser->parse($payload);
145 } else {
146 exit(mnet_server_fault(7022, 'verifysignature-error'));
147 }
148
149 } else {
150 exit(mnet_server_fault(7024, 'payload-not-encrypted'));
151 }
152
153 unset($payload);
154
155 $host_record_exists = $MNET_REMOTE_CLIENT->set_wwwroot($sig_parser->remote_wwwroot);
156
157 if (false == $host_record_exists) {
158 exit(mnet_server_fault(7020, 'wrong-wwwroot', $sig_parser->remote_wwwroot));
159 } elseif (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] != $MNET_REMOTE_CLIENT->ip_address) {
160 exit(mnet_server_fault(7017, 'wrong-ip'));
161 }
162
163 /**
164 * Get the certificate (i.e. public key) from the remote server.
165 */
166 $certificate = $MNET_REMOTE_CLIENT->public_key;
167
168 if ($certificate == false) {
169 exit(mnet_server_fault(709, 'nosuchpublickey'));
170 }
171
172 $payload = base64_decode($sig_parser->data_object);
173
174 // Does the signature match the data and the public cert?
175 $signature_verified = openssl_verify($payload, base64_decode($sig_parser->signature), $certificate);
176 if ($signature_verified == 1) {
177 // Parse the XML
178 } elseif ($signature_verified == 0) {
179 exit(mnet_server_fault(710, 'verifysignature-invalid'));
180 } else {
181 exit(mnet_server_fault(711, 'verifysignature-error'));
182 }
183
184 $sig_parser->free_resource();
185
186 return $payload;
187 } else {
188 exit(mnet_server_fault(712, "phperror"));
189 }
190}
191
192/**
193 * Return the proper XML-RPC content to report an error.
194 *
195 * @param int $code The ID code of the error message
196 * @return string $text The text of the error message
197 */
198function mnet_server_fault($code, $text, $param = null) {
199 if (!is_numeric($code)) {
200 $code = 0;
201 }
202 $code = intval($code);
203
204 $text = get_string($text, 'mnet', $param);
205
206 // Replace illegal XML chars - is this already in a lib somewhere?
207 $text = str_replace(array('<','>','&','"',"'"), array('&lt;','&gt;','&amp;','&quot;','&apos;'), $text);
208
209 $return = mnet_server_prepare_response('<?xml version="1.0"?>
210<methodResponse>
211 <fault>
212 <value>
213 <struct>
214 <member>
215 <name>faultCode</name>
216 <value><int>'.$code.'</int></value>
217 </member>
218 <member>
219 <name>faultString</name>
220 <value><string>'.$text.'</string></value>
221 </member>
222 </struct>
223 </value>
224 </fault>
225 </methodResponse>');
226 return $return;
227}
228
229/**
230 * Dummy function for the XML-RPC dispatcher - use to call a method on an object
231 * or to call a function
232 *
233 * Translate XML-RPC's strange function call syntax into a more straightforward
234 * PHP-friendly alternative. This dummy function will be called by the
235 * dispatcher, and can be used to call a method on an object, or just a function
236 *
237 * The methodName argument (eg. mnet/testlib/mnet_concatenate_strings)
238 * is ignored.
239 *
240 * @param string $methodname We discard this - see 'functionname'
241 * @param array $argsarray Each element is an argument to the real
242 * function
243 * @param string $functionname The name of the PHP function you want to call
244 * @return mixed The return value will be that of the real
245 * function, whateber it may be.
246 */
247function mnet_server_dummy_method($methodname, $argsarray, $functionname) {
248 global $MNET_REMOTE_CLIENT;
249
250 if ($MNET_REMOTE_CLIENT->object_to_call == false) {
251 return @call_user_func_array($functionname, $argsarray);
252 } else {
253 return @call_user_method_array($functionname, $MNET_REMOTE_CLIENT->object_to_call, $argsarray);
254 }
255}
256
257/**
258 * Package a response in any required envelope, and return it to the client
259 *
260 * @param string $response The XMLRPC response string
261 * @return string The encoded response string
262 */
263function mnet_server_prepare_response($response) {
264 global $MNET_REMOTE_CLIENT;
265
266 if ($MNET_REMOTE_CLIENT->request_was_signed) {
267 $response = mnet_sign_message($response);
268 }
269
270 if ($MNET_REMOTE_CLIENT->request_was_encrypted) {
271 $response = mnet_encrypt_message($response, $MNET_REMOTE_CLIENT->public_key);
272 }
273
274 return $response;
275}
276
277/**
278 * If security checks are passed, dispatch the request to the function/method
279 *
280 * The config variable 'mnet_dispatcher_mode' can be:
281 * strict: Only execute functions that are in specific files
282 * off: The default - don't execute anything
283 *
284 * @param string $payload The XML-RPC request
285 * @return No return val - just echo the response
286 */
287function mnet_server_dispatch($payload) {
288 global $CFG, $MNET_REMOTE_CLIENT;
289 // xmlrpc_decode_request returns an array of parameters, and the $method
290 // variable (which is passed by reference) is instantiated with the value from
291 // the methodName tag in the xml payload
292 // xmlrpc_decode_request($xml, &$method)
293 $params = xmlrpc_decode_request($payload, $method);
294
295 // $method is something like: "mod/forum/lib/forum_add_instance"
296 // $params is an array of parameters. A parameter might itself be an array.
297
298 // Whitelist characters that are permitted in a method name
299 // The method name must not begin with a / - avoid absolute paths
300 // A dot character . is only allowed in the filename, i.e. something.php
301 if (0 == preg_match("@^[A-Za-z0-9]+/[A-Za-z0-9/_-]+(\.php/)?[A-Za-z0-9_-]+$@",$method)) {
302 exit(mnet_server_fault(713, 'nosuchfunction'));
303 }
304
305 $callstack = explode('/', $method);
306 // callstack will look like array('mod', 'forum', 'lib', 'forum_add_instance');
307
308 /**
309 * What has the site administrator chosen as his dispatcher setting?
310 * strict: Only execute functions that are in specific files
311 * off: The default - don't execute anything
312 */
313 ////////////////////////////////////// OFF
314 if (!isset($CFG->mnet_dispatcher_mode) ) {
315 set_config('mnet_dispatcher_mode', 'off');
316 exit(mnet_server_fault(704, 'nosuchservice'));
317 } elseif ('off' == $CFG->mnet_dispatcher_mode) {
318 exit(mnet_server_fault(704, 'nosuchservice'));
319
320 ////////////////////////////////////// SYSTEM METHODS
321 } elseif ($callstack[0] == 'system') {
322 $functionname = $callstack[1];
323 $xmlrpcserver = xmlrpc_server_create();
324
325 // I'm adding the canonical xmlrpc references here, however we've
326 // already forbidden that the period (.) should be allowed in the call
327 // stack, so if someone tries to access our XMLRPC in the normal way,
328 // they'll already have received a RPC server fault message.
329
330 // Maybe we should allow an easement so that regular XMLRPC clients can
331 // call our system methods, and find out what we have to offer?
332
333 xmlrpc_server_register_method($xmlrpcserver, 'system.listMethods', 'mnet_system');
334 xmlrpc_server_register_method($xmlrpcserver, 'system/listMethods', 'mnet_system');
335
336 xmlrpc_server_register_method($xmlrpcserver, 'system.methodSignature', 'mnet_system');
337 xmlrpc_server_register_method($xmlrpcserver, 'system/methodSignature', 'mnet_system');
338
339 xmlrpc_server_register_method($xmlrpcserver, 'system.methodHelp', 'mnet_system');
340 xmlrpc_server_register_method($xmlrpcserver, 'system/methodHelp', 'mnet_system');
341
342 xmlrpc_server_register_method($xmlrpcserver, 'system.listServices', 'mnet_system');
343 xmlrpc_server_register_method($xmlrpcserver, 'system/listServices', 'mnet_system');
344
345 xmlrpc_server_register_method($xmlrpcserver, 'system.keyswap', 'mnet_keyswap');
346 xmlrpc_server_register_method($xmlrpcserver, 'system/keyswap', 'mnet_keyswap');
347
348 if ($method == 'system.listMethods' ||
349 $method == 'system/listMethods' ||
350 $method == 'system.methodSignature' ||
351 $method == 'system/methodSignature' ||
352 $method == 'system.methodHelp' ||
353 $method == 'system/methodHelp' ||
354 $method == 'system.listServices' ||
355 $method == 'system/listServices' ||
356 $method == 'system.keyswap' ||
357 $method == 'system/keyswap') {
358
359 $response = xmlrpc_server_call_method($xmlrpcserver, $payload, $MNET_REMOTE_CLIENT);
360 $response = mnet_server_prepare_response($response);
361 } else {
362 exit(mnet_server_fault(7018, 'nosuchfunction'));
363 }
364
365 xmlrpc_server_destroy($xmlrpcserver);
366 echo $response;
367 ////////////////////////////////////// STRICT AUTH
368 } elseif ($callstack[0] == 'auth') {
369
370 // Break out the callstack into its elements
371 list($base, $plugin, $filename, $methodname) = $callstack;
372
373 // We refuse to include anything that is not auth.php
374 if ($filename == 'auth.php' && is_enabled_auth($plugin)) {
375 $authclass = 'auth_plugin_'.$plugin;
376 $includefile = '/auth/'.$plugin.'/auth.php';
377 $response = mnet_server_invoke_method($includefile, $methodname, $method, $payload, $authclass);
378 $response = mnet_server_prepare_response($response);
379 echo $response;
380 } else {
381 // Generate error response - unable to locate function
382 exit(mnet_server_fault(702, 'nosuchfunction'));
383 }
384
385 ////////////////////////////////////// STRICT ENROL
386 } elseif ($callstack[0] == 'enrol') {
387
388 // Break out the callstack into its elements
389 list($base, $plugin, $filename, $methodname) = $callstack;
390
391 if ($filename == 'enrol.php' && is_enabled_enrol($plugin)) {
392 $enrolclass = 'enrolment_plugin_'.$plugin;
393 $includefile = '/enrol/'.$plugin.'/enrol.php';
394 $response = mnet_server_invoke_method($includefile, $methodname, $method, $payload, $enrolclass);
395 $response = mnet_server_prepare_response($response);
396 echo $response;
397 } else {
398 // Generate error response - unable to locate function
399 exit(mnet_server_fault(703, 'nosuchfunction'));
400 }
401
402 ////////////////////////////////////// STRICT MOD/*
403 } elseif ($callstack[0] == 'mod' || 'promiscuous' == $CFG->mnet_dispatcher_mode) {
404 list($base, $module, $filename, $functionname) = $callstack;
405
406 ////////////////////////////////////// STRICT MOD/*
407 if ($base == 'mod' && $filename == 'rpclib.php') {
408 $includefile = '/mod/'.$module.'/rpclib.php';
409 $response = mnet_server_invoke_method($includefile, $functionname, $method, $payload);
410 $response = mnet_server_prepare_response($response);
411 echo $response;
412
413 ////////////////////////////////////// PROMISCUOUS
414 } elseif ('promiscuous' == $CFG->mnet_dispatcher_mode && $MNET_REMOTE_CLIENT->plaintext_is_ok()) {
415
416 $functionname = array_pop($callstack);
417 $filename = array_pop($callstack);
418
419 if ($MNET_REMOTE_CLIENT->plaintext_is_ok()) {
420
421 // The call stack holds the path to any include file
422 $includefile = $CFG->dirroot.'/'.implode('/',$callstack).'/'.$filename.'.php';
423
424 $response = mnet_server_invoke_function($includefile, $functionname, $method, $payload);
425 echo $response;
426 }
427
428 } else {
429 // Generate error response - unable to locate function
430 exit(mnet_server_fault(7012, 'nosuchfunction'));
431 }
432
433 } else {
434 // Generate error response - unable to locate function
435 exit(mnet_server_fault(7012, 'nosuchfunction'));
436 }
437}
438
439/**
440 * Execute the system functions - mostly for introspection
441 *
442 * @param string $method XMLRPC method name, e.g. system.listMethods
443 * @param array $params Array of parameters from the XMLRPC request
444 * @param string $hostinfo Hostinfo object from the mnet_host table
445 * @return mixed Response data - any kind of PHP variable
446 */
447function mnet_system($method, $params, $hostinfo) {
448 global $CFG;
449
450 if (empty($hostinfo)) return array();
451
452 $id_list = $hostinfo->id;
453 if (!empty($CFG->mnet_all_hosts_id)) {
454 $id_list .= ', '.$CFG->mnet_all_hosts_id;
455 }
456
457 if ('system.listMethods' == $method || 'system/listMethods' == $method) {
458 if (count($params) == 0) {
459 $query = '
460 SELECT DISTINCT
461 rpc.function_name,
462 rpc.xmlrpc_path,
463 rpc.enabled,
464 rpc.help,
465 rpc.profile
466 FROM
467 '.$CFG->prefix.'mnet_host2service h2s,
468 '.$CFG->prefix.'mnet_service2rpc s2r,
469 '.$CFG->prefix.'mnet_rpc rpc
470 WHERE
471 s2r.rpcid = rpc.id AND
472 h2s.serviceid = s2r.serviceid AND
473 h2s.hostid in ('.$id_list .')
474 ORDER BY
475 rpc.xmlrpc_path ASC';
476
477 } else {
478 $query = '
479 SELECT DISTINCT
480 rpc.function_name,
481 rpc.xmlrpc_path,
482 rpc.enabled,
483 rpc.help,
484 rpc.profile
485 FROM
486 '.$CFG->prefix.'mnet_host2service h2s,
487 '.$CFG->prefix.'mnet_service2rpc s2r,
488 '.$CFG->prefix.'mnet_service svc,
489 '.$CFG->prefix.'mnet_rpc rpc
490 WHERE
491 s2r.rpcid = rpc.id AND
492 h2s.serviceid = s2r.serviceid AND
493 h2s.hostid in ('.$id_list .') AND
494 svc.id = h2s.serviceid AND
495 svc.name = \''.$params[0].'\'
496 ORDER BY
497 rpc.xmlrpc_path ASC';
498
499 }
500 $resultset = array_values(get_records_sql($query));
501 $methods = array();
502 foreach($resultset as $result) {
503 $methods[] = $result->xmlrpc_path;
504 }
505 return $methods;
506 } elseif ('system.methodSignature' == $method || 'system/methodSignature' == $method) {
507 $query = '
508 SELECT DISTINCT
509 rpc.function_name,
510 rpc.xmlrpc_path,
511 rpc.enabled,
512 rpc.help,
513 rpc.profile
514 FROM
515 '.$CFG->prefix.'mnet_host2service h2s,
516 '.$CFG->prefix.'mnet_service2rpc s2r,
517 '.$CFG->prefix.'mnet_rpc rpc
518 WHERE
519 rpc.xmlrpc_path = \''.$params[0].'\' AND
520 s2r.rpcid = rpc.id AND
521 h2s.serviceid = s2r.serviceid AND
522 h2s.hostid in ('.$id_list .')';
523
524 $result = get_records_sql($query);
525 $methodsigs = array();
526
527 if (is_array($result)) {
528 foreach($result as $method) {
529 $methodsigs[] = unserialize($method->profile);
530 }
531 }
532
533 return $methodsigs;
534 } elseif ('system.methodHelp' == $method || 'system/methodHelp' == $method) {
535 $query = '
536 SELECT DISTINCT
537 rpc.function_name,
538 rpc.xmlrpc_path,
539 rpc.enabled,
540 rpc.help,
541 rpc.profile
542 FROM
543 '.$CFG->prefix.'mnet_host2service h2s,
544 '.$CFG->prefix.'mnet_service2rpc s2r,
545 '.$CFG->prefix.'mnet_rpc rpc
546 WHERE
547 rpc.xmlrpc_path = \''.$params[0].'\' AND
548 s2r.rpcid = rpc.id AND
549 h2s.serviceid = s2r.serviceid AND
550 h2s.hostid in ('.$id_list .')';
551
552 $result = get_record_sql($query);
553
554 if (is_object($result)) {
555 return $result->help;
556 }
557 } elseif ('system.listServices' == $method || 'system/listServices' == $method) {
558 $query = '
559 SELECT DISTINCT
560 s.id,
561 s.name,
562 s.apiversion,
563 h2s.publish,
564 h2s.subscribe
565 FROM
566 '.$CFG->prefix.'mnet_host2service h2s,
567 '.$CFG->prefix.'mnet_service s
568 WHERE
569 h2s.serviceid = s.id AND
570 h2s.hostid in ('.$id_list .')
571 ORDER BY
572 s.name ASC';
573
574 $result = get_records_sql($query);
575 $services = array();
576
577 if (is_array($result)) {
578 foreach($result as $service) {
579 $services[] = array('name' => $service->name,
580 'apiversion' => $service->apiversion,
581 'publish' => $service->publish,
582 'subscribe' => $service->subscribe);
583 }
584 }
585
586 return $services;
587 }
588 exit(mnet_server_fault(7019, 'nosuchfunction'));
589}
590
591/**
592 * Initialize the object (if necessary), execute the method or function, and
593 * return the response
594 *
595 * @param string $includefile The file that contains the object definition
596 * @param string $methodname The name of the method to execute
597 * @param string $method The full path to the method
598 * @param string $payload The XML-RPC request payload
599 * @param string $class The name of the class to instantiate (or false)
600 * @return string The XML-RPC response
601 */
602function mnet_server_invoke_method($includefile, $methodname, $method, $payload, $class=false) {
603
604 $permission = mnet_permit_rpc_call($includefile, $methodname, $class);
605
606 if (RPC_NOSUCHFILE == $permission) {
607 // Generate error response - unable to locate function
608 exit(mnet_server_fault(705, 'nosuchfile', $includefile));
609 }
610
611 if (RPC_NOSUCHFUNCTION == $permission) {
612 // Generate error response - unable to locate function
613 exit(mnet_server_fault(706, 'nosuchfunction'));
614 }
615
616 if (RPC_FORBIDDENFUNCTION == $permission) {
617 // Generate error response - unable to locate function
618 exit(mnet_server_fault(707, 'forbidden-function'));
619 }
620
621 if (RPC_NOSUCHCLASS == $permission) {
622 // Generate error response - unable to locate function
623 exit(mnet_server_fault(7013, 'nosuchfunction'));
624 }
625
626 if (RPC_NOSUCHMETHOD == $permission) {
627 // Generate error response - unable to locate function
628 exit(mnet_server_fault(7014, 'nosuchmethod'));
629 }
630
631 if (RPC_NOSUCHFUNCTION == $permission) {
632 // Generate error response - unable to locate function
633 exit(mnet_server_fault(7014, 'nosuchmethod'));
634 }
635
636 if (RPC_FORBIDDENMETHOD == $permission) {
637 // Generate error response - unable to locate function
638 exit(mnet_server_fault(7015, 'nosuchfunction'));
639 }
640
641 if (0 < $permission) {
642 // Generate error response - unable to locate function
643 exit(mnet_server_fault(7019, 'unknownerror'));
644 }
645
646 if (RPC_OK == $permission) {
647 $xmlrpcserver = xmlrpc_server_create();
648 $bool = xmlrpc_server_register_method($xmlrpcserver, $method, 'mnet_server_dummy_method');
649 $response = xmlrpc_server_call_method($xmlrpcserver, $payload, $methodname);
650 $bool = xmlrpc_server_destroy($xmlrpcserver);
651 return $response;
652 }
653}
654
655function mnet_keyswap($function, $params) {
656 global $CFG;
657 $return = array();
658
659 if (!empty($CFG->mnet_register_allhosts)) {
660 $mnet_peer = new mnet_peer();
661 $keyok = $mnet_peer->bootstrap($params[0]);
662 if ($keyok) {
663 $mnet_peer->commit();
664 }
665 }
666 $keypair = mnet_get_keypair();
667 return $keypair['certificate'];
668}
669?>