3 * PHP-XMLRPC "wrapper" functions
\r
4 * Generate stubs to transparently access xmlrpc methods as php functions and viceversa
\r
6 * @author Gaetano Giunta
\r
7 * @copyright (C) 2006-2013 G. Giunta
\r
8 * @license code licensed under the BSD License: http://phpxmlrpc.sourceforge.net/license.txt
\r
10 * @todo separate introspection from code generation for func-2-method wrapping
\r
11 * @todo use some better templating system for code generation?
\r
12 * @todo implement method wrapping with preservation of php objs in calls
\r
13 * @todo when wrapping methods without obj rebuilding, use return_type = 'phpvals' (faster)
\r
14 * @todo implement self-parsing of php code for PHP <= 4
\r
17 // requires: xmlrpc.inc
\r
20 * Given a string defining a php type or phpxmlrpc type (loosely defined: strings
\r
21 * accepted come from javadoc blocks), return corresponding phpxmlrpc type.
\r
22 * NB: for php 'resource' types returns empty string, since resources cannot be serialized;
\r
23 * for php class names returns 'struct', since php objects can be serialized as xmlrpc structs
\r
24 * for php arrays always return array, even though arrays sometiles serialize as json structs
\r
25 * @param string $phptype
\r
28 function php_2_xmlrpc_type($phptype)
\r
30 switch(strtolower($phptype))
\r
33 return $GLOBALS['xmlrpcString'];
\r
35 case $GLOBALS['xmlrpcInt']: // 'int'
\r
36 case $GLOBALS['xmlrpcI4']:
\r
37 return $GLOBALS['xmlrpcInt'];
\r
39 return $GLOBALS['xmlrpcDouble'];
\r
41 return $GLOBALS['xmlrpcBoolean'];
\r
43 return $GLOBALS['xmlrpcArray'];
\r
45 return $GLOBALS['xmlrpcStruct'];
\r
46 case $GLOBALS['xmlrpcBase64']:
\r
47 case $GLOBALS['xmlrpcStruct']:
\r
48 return strtolower($phptype);
\r
52 if(class_exists($phptype))
\r
54 return $GLOBALS['xmlrpcStruct'];
\r
58 // unknown: might be any 'extended' xmlrpc type
\r
59 return $GLOBALS['xmlrpcValue'];
\r
65 * Given a string defining a phpxmlrpc type return corresponding php type.
\r
66 * @param string $xmlrpctype
\r
69 function xmlrpc_2_php_type($xmlrpctype)
\r
71 switch(strtolower($xmlrpctype))
\r
74 case 'datetime.iso8601':
\r
76 return $GLOBALS['xmlrpcString'];
\r
90 // unknown: might be any xmlrpc type
\r
91 return strtolower($xmlrpctype);
\r
96 * Given a user-defined PHP function, create a PHP 'wrapper' function that can
\r
97 * be exposed as xmlrpc method from an xmlrpc_server object and called from remote
\r
98 * clients (as well as its corresponding signature info).
\r
100 * Since php is a typeless language, to infer types of input and output parameters,
\r
101 * it relies on parsing the javadoc-style comment block associated with the given
\r
102 * function. Usage of xmlrpc native types (such as datetime.dateTime.iso8601 and base64)
\r
103 * in the @param tag is also allowed, if you need the php function to receive/send
\r
104 * data in that particular format (note that base64 encoding/decoding is transparently
\r
105 * carried out by the lib, while datetime vals are passed around as strings)
\r
107 * Known limitations:
\r
108 * - requires PHP 5.0.3 +
\r
109 * - only works for user-defined functions, not for PHP internal functions
\r
110 * (reflection does not support retrieving number/type of params for those)
\r
111 * - functions returning php objects will generate special xmlrpc responses:
\r
112 * when the xmlrpc decoding of those responses is carried out by this same lib, using
\r
113 * the appropriate param in php_xmlrpc_decode, the php objects will be rebuilt.
\r
114 * In short: php objects can be serialized, too (except for their resource members),
\r
115 * using this function.
\r
116 * Other libs might choke on the very same xml that will be generated in this case
\r
117 * (i.e. it has a nonstandard attribute on struct element tags)
\r
118 * - usage of javadoc @param tags using param names in a different order from the
\r
119 * function prototype is not considered valid (to be fixed?)
\r
121 * Note that since rel. 2.0RC3 the preferred method to have the server call 'standard'
\r
122 * php functions (ie. functions not expecting a single xmlrpcmsg obj as parameter)
\r
123 * is by making use of the functions_parameters_type class member.
\r
125 * @param string $funcname the name of the PHP user function to be exposed as xmlrpc method; array($obj, 'methodname') and array('class', 'methodname') are ok too
\r
126 * @param string $newfuncname (optional) name for function to be created
\r
127 * @param array $extra_options (optional) array of options for conversion. valid values include:
\r
128 * bool return_source when true, php code w. function definition will be returned, not evaluated
\r
129 * bool encode_php_objs let php objects be sent to server using the 'improved' xmlrpc notation, so server can deserialize them as php objects
\r
130 * bool decode_php_objs --- WARNING !!! possible security hazard. only use it with trusted servers ---
\r
131 * bool suppress_warnings remove from produced xml any runtime warnings due to the php function being invoked
\r
132 * @return false on error, or an array containing the name of the new php function,
\r
133 * its signature and docs, to be used in the server dispatch map
\r
135 * @todo decide how to deal with params passed by ref: bomb out or allow?
\r
136 * @todo finish using javadoc info to build method sig if all params are named but out of order
\r
137 * @todo add a check for params of 'resource' type
\r
138 * @todo add some trigger_errors / error_log when returning false?
\r
139 * @todo what to do when the PHP function returns NULL? we are currently returning an empty string value...
\r
140 * @todo add an option to suppress php warnings in invocation of user function, similar to server debug level 3?
\r
141 * @todo if $newfuncname is empty, we could use create_user_func instead of eval, as it is possibly faster
\r
142 * @todo add a verbatim_object_copy parameter to allow avoiding the same obj instance?
\r
144 function wrap_php_function($funcname, $newfuncname='', $extra_options=array())
\r
146 $buildit = isset($extra_options['return_source']) ? !($extra_options['return_source']) : true;
\r
147 $prefix = isset($extra_options['prefix']) ? $extra_options['prefix'] : 'xmlrpc';
\r
148 $encode_php_objects = isset($extra_options['encode_php_objs']) ? (bool)$extra_options['encode_php_objs'] : false;
\r
149 $decode_php_objects = isset($extra_options['decode_php_objs']) ? (bool)$extra_options['decode_php_objs'] : false;
\r
150 $catch_warnings = isset($extra_options['suppress_warnings']) && $extra_options['suppress_warnings'] ? '@' : '';
\r
152 if(version_compare(phpversion(), '5.0.3') == -1)
\r
154 // up to php 5.0.3 some useful reflection methods were missing
\r
155 error_log('XML-RPC: cannot not wrap php functions unless running php version bigger than 5.0.3');
\r
160 if (is_string($funcname) && strpos($funcname, '::') !== false)
\r
162 $funcname = explode('::', $funcname);
\r
164 if(is_array($funcname))
\r
166 if(count($funcname) < 2 || (!is_string($funcname[0]) && !is_object($funcname[0])))
\r
168 error_log('XML-RPC: syntax for function to be wrapped is wrong');
\r
171 if(is_string($funcname[0]))
\r
173 $plainfuncname = implode('::', $funcname);
\r
175 elseif(is_object($funcname[0]))
\r
177 $plainfuncname = get_class($funcname[0]) . '->' . $funcname[1];
\r
179 $exists = method_exists($funcname[0], $funcname[1]);
\r
180 if (!$exists && version_compare(phpversion(), '5.1') < 0)
\r
182 // workaround for php 5.0: static class methods are not seen by method_exists
\r
183 $exists = is_callable( $funcname );
\r
188 $plainfuncname = $funcname;
\r
189 $exists = function_exists($funcname);
\r
194 error_log('XML-RPC: function to be wrapped is not defined: '.$plainfuncname);
\r
199 // determine name of new php function
\r
200 if($newfuncname == '')
\r
202 if(is_array($funcname))
\r
204 if(is_string($funcname[0]))
\r
205 $xmlrpcfuncname = "{$prefix}_".implode('_', $funcname);
\r
207 $xmlrpcfuncname = "{$prefix}_".get_class($funcname[0]) . '_' . $funcname[1];
\r
211 $xmlrpcfuncname = "{$prefix}_$funcname";
\r
216 $xmlrpcfuncname = $newfuncname;
\r
218 while($buildit && function_exists($xmlrpcfuncname))
\r
220 $xmlrpcfuncname .= 'x';
\r
223 // start to introspect PHP code
\r
224 if(is_array($funcname))
\r
226 $func = new ReflectionMethod($funcname[0], $funcname[1]);
\r
227 if($func->isPrivate())
\r
229 error_log('XML-RPC: method to be wrapped is private: '.$plainfuncname);
\r
232 if($func->isProtected())
\r
234 error_log('XML-RPC: method to be wrapped is protected: '.$plainfuncname);
\r
237 if($func->isConstructor())
\r
239 error_log('XML-RPC: method to be wrapped is the constructor: '.$plainfuncname);
\r
242 // php 503 always says isdestructor = true...
\r
243 if( version_compare(phpversion(), '5.0.3') != 0 && $func->isDestructor())
\r
245 error_log('XML-RPC: method to be wrapped is the destructor: '.$plainfuncname);
\r
248 if($func->isAbstract())
\r
250 error_log('XML-RPC: method to be wrapped is abstract: '.$plainfuncname);
\r
253 /// @todo add more checks for static vs. nonstatic?
\r
257 $func = new ReflectionFunction($funcname);
\r
259 if($func->isInternal())
\r
261 // Note: from PHP 5.1.0 onward, we will possibly be able to use invokeargs
\r
262 // instead of getparameters to fully reflect internal php functions ?
\r
263 error_log('XML-RPC: function to be wrapped is internal: '.$plainfuncname);
\r
267 // retrieve parameter names, types and description from javadoc comments
\r
269 // function description
\r
271 // type of return val: by default 'any'
\r
272 $returns = $GLOBALS['xmlrpcValue'];
\r
273 // desc of return val
\r
275 // type + name of function parameters
\r
276 $paramDocs = array();
\r
278 $docs = $func->getDocComment();
\r
281 $docs = explode("\n", $docs);
\r
283 foreach($docs as $doc)
\r
285 $doc = trim($doc, " \r\t/*");
\r
286 if(strlen($doc) && strpos($doc, '@') !== 0 && !$i)
\r
294 elseif(strpos($doc, '@param') === 0)
\r
296 // syntax: @param type [$name] desc
\r
297 if(preg_match('/@param\s+(\S+)(\s+\$\S+)?\s+(.+)/', $doc, $matches))
\r
299 if(strpos($matches[1], '|'))
\r
301 //$paramDocs[$i]['type'] = explode('|', $matches[1]);
\r
302 $paramDocs[$i]['type'] = 'mixed';
\r
306 $paramDocs[$i]['type'] = $matches[1];
\r
308 $paramDocs[$i]['name'] = trim($matches[2]);
\r
309 $paramDocs[$i]['doc'] = $matches[3];
\r
313 elseif(strpos($doc, '@return') === 0)
\r
315 // syntax: @return type desc
\r
316 //$returns = preg_split('/\s+/', $doc);
\r
317 if(preg_match('/@return\s+(\S+)\s+(.+)/', $doc, $matches))
\r
319 $returns = php_2_xmlrpc_type($matches[1]);
\r
320 if(isset($matches[2]))
\r
322 $returnsDocs = $matches[2];
\r
329 // execute introspection of actual function prototype
\r
332 foreach($func->getParameters() as $paramobj)
\r
334 $params[$i] = array();
\r
335 $params[$i]['name'] = '$'.$paramobj->getName();
\r
336 $params[$i]['isoptional'] = $paramobj->isOptional();
\r
341 // start building of PHP code to be eval'd
\r
344 $parsvariations = array();
\r
346 $pnum = count($params);
\r
347 foreach($params as $param)
\r
349 if (isset($paramDocs[$i]['name']) && $paramDocs[$i]['name'] && strtolower($paramDocs[$i]['name']) != strtolower($param['name']))
\r
351 // param name from phpdoc info does not match param definition!
\r
352 $paramDocs[$i]['type'] = 'mixed';
\r
355 if($param['isoptional'])
\r
357 // this particular parameter is optional. save as valid previous list of parameters
\r
358 $innercode .= "if (\$paramcount > $i) {\n";
\r
359 $parsvariations[] = $pars;
\r
361 $innercode .= "\$p$i = \$msg->getParam($i);\n";
\r
362 if ($decode_php_objects)
\r
364 $innercode .= "if (\$p{$i}->kindOf() == 'scalar') \$p$i = \$p{$i}->scalarval(); else \$p$i = php_{$prefix}_decode(\$p$i, array('decode_php_objs'));\n";
\r
368 $innercode .= "if (\$p{$i}->kindOf() == 'scalar') \$p$i = \$p{$i}->scalarval(); else \$p$i = php_{$prefix}_decode(\$p$i);\n";
\r
373 if($param['isoptional'])
\r
375 $innercode .= "}\n";
\r
379 // last allowed parameters combination
\r
380 $parsvariations[] = $pars;
\r
386 if(count($parsvariations) == 0)
\r
388 // only known good synopsis = no parameters
\r
389 $parsvariations[] = array();
\r
394 $minpars = count($parsvariations[0]);
\r
399 // add to code the check for min params number
\r
400 // NB: this check needs to be done BEFORE decoding param values
\r
401 $innercode = "\$paramcount = \$msg->getNumParams();\n" .
\r
402 "if (\$paramcount < $minpars) return new {$prefix}resp(0, {$GLOBALS['xmlrpcerr']['incorrect_params']}, '{$GLOBALS['xmlrpcstr']['incorrect_params']}');\n" . $innercode;
\r
406 $innercode = "\$paramcount = \$msg->getNumParams();\n" . $innercode;
\r
409 $innercode .= "\$np = false;\n";
\r
410 // since there are no closures in php, if we are given an object instance,
\r
411 // we store a pointer to it in a global var...
\r
412 if ( is_array($funcname) && is_object($funcname[0]) )
\r
414 $GLOBALS['xmlrpcWPFObjHolder'][$xmlrpcfuncname] =& $funcname[0];
\r
415 $innercode .= "\$obj =& \$GLOBALS['xmlrpcWPFObjHolder']['$xmlrpcfuncname'];\n";
\r
416 $realfuncname = '$obj->'.$funcname[1];
\r
420 $realfuncname = $plainfuncname;
\r
422 foreach($parsvariations as $pars)
\r
424 $innercode .= "if (\$paramcount == " . count($pars) . ") \$retval = {$catch_warnings}$realfuncname(" . implode(',', $pars) . "); else\n";
\r
425 // build a 'generic' signature (only use an appropriate return type)
\r
426 $sig = array($returns);
\r
427 $psig = array($returnsDocs);
\r
428 for($i=0; $i < count($pars); $i++)
\r
430 if (isset($paramDocs[$i]['type']))
\r
432 $sig[] = php_2_xmlrpc_type($paramDocs[$i]['type']);
\r
436 $sig[] = $GLOBALS['xmlrpcValue'];
\r
438 $psig[] = isset($paramDocs[$i]['doc']) ? $paramDocs[$i]['doc'] : '';
\r
443 $innercode .= "\$np = true;\n";
\r
444 $innercode .= "if (\$np) return new {$prefix}resp(0, {$GLOBALS['xmlrpcerr']['incorrect_params']}, '{$GLOBALS['xmlrpcstr']['incorrect_params']}'); else {\n";
\r
445 //$innercode .= "if (\$_xmlrpcs_error_occurred) return new xmlrpcresp(0, $GLOBALS['xmlrpcerr']user, \$_xmlrpcs_error_occurred); else\n";
\r
446 $innercode .= "if (is_a(\$retval, '{$prefix}resp')) return \$retval; else\n";
\r
447 if($returns == $GLOBALS['xmlrpcDateTime'] || $returns == $GLOBALS['xmlrpcBase64'])
\r
449 $innercode .= "return new {$prefix}resp(new {$prefix}val(\$retval, '$returns'));";
\r
453 if ($encode_php_objects)
\r
454 $innercode .= "return new {$prefix}resp(php_{$prefix}_encode(\$retval, array('encode_php_objs')));\n";
\r
456 $innercode .= "return new {$prefix}resp(php_{$prefix}_encode(\$retval));\n";
\r
458 // shall we exclude functions returning by ref?
\r
459 // if($func->returnsReference())
\r
461 $code = "function $xmlrpcfuncname(\$msg) {\n" . $innercode . "}\n}";
\r
466 eval($code.'$allOK=1;');
\r
468 //$xmlrpcfuncname = create_function('$m', $innercode);
\r
472 error_log('XML-RPC: could not create function '.$xmlrpcfuncname.' to wrap php function '.$plainfuncname);
\r
477 /// @todo examine if $paramDocs matches $parsvariations and build array for
\r
478 /// usage as method signature, plus put together a nice string for docs
\r
480 $ret = array('function' => $xmlrpcfuncname, 'signature' => $sigs, 'docstring' => $desc, 'signature_docs' => $psigs, 'source' => $code);
\r
486 * Given a user-defined PHP class or php object, map its methods onto a list of
\r
487 * PHP 'wrapper' functions that can be exposed as xmlrpc methods from an xmlrpc_server
\r
488 * object and called from remote clients (as well as their corresponding signature info).
\r
490 * @param mixed $classname the name of the class whose methods are to be exposed as xmlrpc methods, or an object instance of that class
\r
491 * @param array $extra_options see the docs for wrap_php_method for more options
\r
492 * string method_type 'static', 'nonstatic', 'all' and 'auto' (default); the latter will switch between static and non-static depending on wheter $classname is a class name or object instance
\r
493 * @return array or false on failure
\r
495 * @todo get_class_methods will return both static and non-static methods.
\r
496 * we have to differentiate the action, depending on wheter we recived a class name or object
\r
498 function wrap_php_class($classname, $extra_options=array())
\r
500 $methodfilter = isset($extra_options['method_filter']) ? $extra_options['method_filter'] : '';
\r
501 $methodtype = isset($extra_options['method_type']) ? $extra_options['method_type'] : 'auto';
\r
503 if(version_compare(phpversion(), '5.0.3') == -1)
\r
505 // up to php 5.0.3 some useful reflection methods were missing
\r
506 error_log('XML-RPC: cannot not wrap php functions unless running php version bigger than 5.0.3');
\r
511 $mlist = get_class_methods($classname);
\r
512 foreach($mlist as $mname)
\r
514 if ($methodfilter == '' || preg_match($methodfilter, $mname))
\r
516 // echo $mlist."\n";
\r
517 $func = new ReflectionMethod($classname, $mname);
\r
518 if(!$func->isPrivate() && !$func->isProtected() && !$func->isConstructor() && !$func->isDestructor() && !$func->isAbstract())
\r
520 if(($func->isStatic && ($methodtype == 'all' || $methodtype == 'static' || ($methodtype == 'auto' && is_string($classname)))) ||
\r
521 (!$func->isStatic && ($methodtype == 'all' || $methodtype == 'nonstatic' || ($methodtype == 'auto' && is_object($classname)))))
\r
523 $methodwrap = wrap_php_function(array($classname, $mname), '', $extra_options);
\r
526 $result[$methodwrap['function']] = $methodwrap['function'];
\r
536 * Given an xmlrpc client and a method name, register a php wrapper function
\r
537 * that will call it and return results using native php types for both
\r
538 * params and results. The generated php function will return an xmlrpcresp
\r
539 * oject for failed xmlrpc calls
\r
541 * Known limitations:
\r
542 * - server must support system.methodsignature for the wanted xmlrpc method
\r
543 * - for methods that expose many signatures, only one can be picked (we
\r
544 * could in priciple check if signatures differ only by number of params
\r
545 * and not by type, but it would be more complication than we can spare time)
\r
546 * - nested xmlrpc params: the caller of the generated php function has to
\r
547 * encode on its own the params passed to the php function if these are structs
\r
548 * or arrays whose (sub)members include values of type datetime or base64
\r
550 * Notes: the connection properties of the given client will be copied
\r
551 * and reused for the connection used during the call to the generated
\r
553 * Calling the generated php function 'might' be slow: a new xmlrpc client
\r
554 * is created on every invocation and an xmlrpc-connection opened+closed.
\r
555 * An extra 'debug' param is appended to param list of xmlrpc method, useful
\r
556 * for debugging purposes.
\r
558 * @param xmlrpc_client $client an xmlrpc client set up correctly to communicate with target server
\r
559 * @param string $methodname the xmlrpc method to be mapped to a php function
\r
560 * @param array $extra_options array of options that specify conversion details. valid ptions include
\r
561 * integer signum the index of the method signature to use in mapping (if method exposes many sigs)
\r
562 * integer timeout timeout (in secs) to be used when executing function/calling remote method
\r
563 * string protocol 'http' (default), 'http11' or 'https'
\r
564 * string new_function_name the name of php function to create. If unsepcified, lib will pick an appropriate name
\r
565 * string return_source if true return php code w. function definition instead fo function name
\r
566 * bool encode_php_objs let php objects be sent to server using the 'improved' xmlrpc notation, so server can deserialize them as php objects
\r
567 * bool decode_php_objs --- WARNING !!! possible security hazard. only use it with trusted servers ---
\r
568 * mixed return_on_fault a php value to be returned when the xmlrpc call fails/returns a fault response (by default the xmlrpcresp object is returned in this case). If a string is used, '%faultCode%' and '%faultString%' tokens will be substituted with actual error values
\r
569 * bool debug set it to 1 or 2 to see debug results of querying server for method synopsis
\r
570 * @return string the name of the generated php function (or false) - OR AN ARRAY...
\r
572 function wrap_xmlrpc_method($client, $methodname, $extra_options=0, $timeout=0, $protocol='', $newfuncname='')
\r
574 // mind numbing: let caller use sane calling convention (as per javadoc, 3 params),
\r
575 // OR the 2.0 calling convention (no options) - we really love backward compat, don't we?
\r
576 if (!is_array($extra_options))
\r
578 $signum = $extra_options;
\r
579 $extra_options = array();
\r
583 $signum = isset($extra_options['signum']) ? (int)$extra_options['signum'] : 0;
\r
584 $timeout = isset($extra_options['timeout']) ? (int)$extra_options['timeout'] : 0;
\r
585 $protocol = isset($extra_options['protocol']) ? $extra_options['protocol'] : '';
\r
586 $newfuncname = isset($extra_options['new_function_name']) ? $extra_options['new_function_name'] : '';
\r
588 //$encode_php_objects = in_array('encode_php_objects', $extra_options);
\r
589 //$verbatim_client_copy = in_array('simple_client_copy', $extra_options) ? 1 :
\r
590 // in_array('build_class_code', $extra_options) ? 2 : 0;
\r
592 $encode_php_objects = isset($extra_options['encode_php_objs']) ? (bool)$extra_options['encode_php_objs'] : false;
\r
593 $decode_php_objects = isset($extra_options['decode_php_objs']) ? (bool)$extra_options['decode_php_objs'] : false;
\r
594 $simple_client_copy = isset($extra_options['simple_client_copy']) ? (int)($extra_options['simple_client_copy']) : 0;
\r
595 $buildit = isset($extra_options['return_source']) ? !($extra_options['return_source']) : true;
\r
596 $prefix = isset($extra_options['prefix']) ? $extra_options['prefix'] : 'xmlrpc';
\r
597 if (isset($extra_options['return_on_fault']))
\r
599 $decode_fault = true;
\r
600 $fault_response = $extra_options['return_on_fault'];
\r
604 $decode_fault = false;
\r
605 $fault_response = '';
\r
607 $debug = isset($extra_options['debug']) ? ($extra_options['debug']) : 0;
\r
609 $msgclass = $prefix.'msg';
\r
610 $valclass = $prefix.'val';
\r
611 $decodefunc = 'php_'.$prefix.'_decode';
\r
613 $msg = new $msgclass('system.methodSignature');
\r
614 $msg->addparam(new $valclass($methodname));
\r
615 $client->setDebug($debug);
\r
616 $response =& $client->send($msg, $timeout, $protocol);
\r
617 if($response->faultCode())
\r
619 error_log('XML-RPC: could not retrieve method signature from remote server for method '.$methodname);
\r
624 $msig = $response->value();
\r
625 if ($client->return_type != 'phpvals')
\r
627 $msig = $decodefunc($msig);
\r
629 if(!is_array($msig) || count($msig) <= $signum)
\r
631 error_log('XML-RPC: could not retrieve method signature nr.'.$signum.' from remote server for method '.$methodname);
\r
636 // pick a suitable name for the new function, avoiding collisions
\r
637 if($newfuncname != '')
\r
639 $xmlrpcfuncname = $newfuncname;
\r
643 // take care to insure that methodname is translated to valid
\r
644 // php function name
\r
645 $xmlrpcfuncname = $prefix.'_'.preg_replace(array('/\./', '/[^a-zA-Z0-9_\x7f-\xff]/'),
\r
646 array('_', ''), $methodname);
\r
648 while($buildit && function_exists($xmlrpcfuncname))
\r
650 $xmlrpcfuncname .= 'x';
\r
653 $msig = $msig[$signum];
\r
655 // if in 'offline' mode, get method description too.
\r
656 // in online mode, favour speed of operation
\r
659 $msg = new $msgclass('system.methodHelp');
\r
660 $msg->addparam(new $valclass($methodname));
\r
661 $response =& $client->send($msg, $timeout, $protocol);
\r
662 if (!$response->faultCode())
\r
664 $mdesc = $response->value();
\r
665 if ($client->return_type != 'phpvals')
\r
667 $mdesc = $mdesc->scalarval();
\r
672 $results = build_remote_method_wrapper_code($client, $methodname,
\r
673 $xmlrpcfuncname, $msig, $mdesc, $timeout, $protocol, $simple_client_copy,
\r
674 $prefix, $decode_php_objects, $encode_php_objects, $decode_fault,
\r
681 eval($results['source'].'$allOK=1;');
\r
683 //$xmlrpcfuncname = create_function('$m', $innercode);
\r
686 return $xmlrpcfuncname;
\r
690 error_log('XML-RPC: could not create function '.$xmlrpcfuncname.' to wrap remote method '.$methodname);
\r
696 $results['function'] = $xmlrpcfuncname;
\r
704 * Similar to wrap_xmlrpc_method, but will generate a php class that wraps
\r
705 * all xmlrpc methods exposed by the remote server as own methods.
\r
706 * For more details see wrap_xmlrpc_method.
\r
707 * @param xmlrpc_client $client the client obj all set to query the desired server
\r
708 * @param array $extra_options list of options for wrapped code
\r
709 * @return mixed false on error, the name of the created class if all ok or an array with code, class name and comments (if the appropriatevoption is set in extra_options)
\r
711 function wrap_xmlrpc_server($client, $extra_options=array())
\r
713 $methodfilter = isset($extra_options['method_filter']) ? $extra_options['method_filter'] : '';
\r
714 //$signum = isset($extra_options['signum']) ? (int)$extra_options['signum'] : 0;
\r
715 $timeout = isset($extra_options['timeout']) ? (int)$extra_options['timeout'] : 0;
\r
716 $protocol = isset($extra_options['protocol']) ? $extra_options['protocol'] : '';
\r
717 $newclassname = isset($extra_options['new_class_name']) ? $extra_options['new_class_name'] : '';
\r
718 $encode_php_objects = isset($extra_options['encode_php_objs']) ? (bool)$extra_options['encode_php_objs'] : false;
\r
719 $decode_php_objects = isset($extra_options['decode_php_objs']) ? (bool)$extra_options['decode_php_objs'] : false;
\r
720 $verbatim_client_copy = isset($extra_options['simple_client_copy']) ? !($extra_options['simple_client_copy']) : true;
\r
721 $buildit = isset($extra_options['return_source']) ? !($extra_options['return_source']) : true;
\r
722 $prefix = isset($extra_options['prefix']) ? $extra_options['prefix'] : 'xmlrpc';
\r
724 $msgclass = $prefix.'msg';
\r
725 //$valclass = $prefix.'val';
\r
726 $decodefunc = 'php_'.$prefix.'_decode';
\r
728 $msg = new $msgclass('system.listMethods');
\r
729 $response =& $client->send($msg, $timeout, $protocol);
\r
730 if($response->faultCode())
\r
732 error_log('XML-RPC: could not retrieve method list from remote server');
\r
737 $mlist = $response->value();
\r
738 if ($client->return_type != 'phpvals')
\r
740 $mlist = $decodefunc($mlist);
\r
742 if(!is_array($mlist) || !count($mlist))
\r
744 error_log('XML-RPC: could not retrieve meaningful method list from remote server');
\r
749 // pick a suitable name for the new function, avoiding collisions
\r
750 if($newclassname != '')
\r
752 $xmlrpcclassname = $newclassname;
\r
756 $xmlrpcclassname = $prefix.'_'.preg_replace(array('/\./', '/[^a-zA-Z0-9_\x7f-\xff]/'),
\r
757 array('_', ''), $client->server).'_client';
\r
759 while($buildit && class_exists($xmlrpcclassname))
\r
761 $xmlrpcclassname .= 'x';
\r
764 /// @todo add function setdebug() to new class, to enable/disable debugging
\r
765 $source = "class $xmlrpcclassname\n{\nvar \$client;\n\n";
\r
766 $source .= "function $xmlrpcclassname()\n{\n";
\r
767 $source .= build_client_wrapper_code($client, $verbatim_client_copy, $prefix);
\r
768 $source .= "\$this->client =& \$client;\n}\n\n";
\r
769 $opts = array('simple_client_copy' => 2, 'return_source' => true,
\r
770 'timeout' => $timeout, 'protocol' => $protocol,
\r
771 'encode_php_objs' => $encode_php_objects, 'prefix' => $prefix,
\r
772 'decode_php_objs' => $decode_php_objects
\r
774 /// @todo build javadoc for class definition, too
\r
775 foreach($mlist as $mname)
\r
777 if ($methodfilter == '' || preg_match($methodfilter, $mname))
\r
779 $opts['new_function_name'] = preg_replace(array('/\./', '/[^a-zA-Z0-9_\x7f-\xff]/'),
\r
780 array('_', ''), $mname);
\r
781 $methodwrap = wrap_xmlrpc_method($client, $mname, $opts);
\r
786 $source .= $methodwrap['docstring'];
\r
788 $source .= $methodwrap['source']."\n";
\r
792 error_log('XML-RPC: will not create class method to wrap remote method '.$mname);
\r
800 eval($source.'$allOK=1;');
\r
802 //$xmlrpcfuncname = create_function('$m', $innercode);
\r
805 return $xmlrpcclassname;
\r
809 error_log('XML-RPC: could not create class '.$xmlrpcclassname.' to wrap remote server '.$client->server);
\r
815 return array('class' => $xmlrpcclassname, 'code' => $source, 'docstring' => '');
\r
822 * Given the necessary info, build php code that creates a new function to
\r
823 * invoke a remote xmlrpc method.
\r
824 * Take care that no full checking of input parameters is done to ensure that
\r
825 * valid php code is emitted.
\r
826 * Note: real spaghetti code follows...
\r
829 function build_remote_method_wrapper_code($client, $methodname, $xmlrpcfuncname,
\r
830 $msig, $mdesc='', $timeout=0, $protocol='', $client_copy_mode=0, $prefix='xmlrpc',
\r
831 $decode_php_objects=false, $encode_php_objects=false, $decode_fault=false,
\r
832 $fault_response='')
\r
834 $code = "function $xmlrpcfuncname (";
\r
835 if ($client_copy_mode < 2)
\r
837 // client copy mode 0 or 1 == partial / full client copy in emitted code
\r
838 $innercode = build_client_wrapper_code($client, $client_copy_mode, $prefix);
\r
839 $innercode .= "\$client->setDebug(\$debug);\n";
\r
844 // client copy mode 2 == no client copy in emitted code
\r
848 $innercode .= "\$msg = new {$prefix}msg('$methodname');\n";
\r
852 // take care that PHP comment is not terminated unwillingly by method description
\r
853 $mdesc = "/**\n* ".str_replace('*/', '* /', $mdesc)."\n";
\r
857 $mdesc = "/**\nFunction $xmlrpcfuncname\n";
\r
862 $pcount = count($msig);
\r
863 for($i = 1; $i < $pcount; $i++)
\r
865 $plist[] = "\$p$i";
\r
866 $ptype = $msig[$i];
\r
867 if($ptype == 'i4' || $ptype == 'int' || $ptype == 'boolean' || $ptype == 'double' ||
\r
868 $ptype == 'string' || $ptype == 'dateTime.iso8601' || $ptype == 'base64' || $ptype == 'null')
\r
870 // only build directly xmlrpcvals when type is known and scalar
\r
871 $innercode .= "\$p$i = new {$prefix}val(\$p$i, '$ptype');\n";
\r
875 if ($encode_php_objects)
\r
877 $innercode .= "\$p$i =& php_{$prefix}_encode(\$p$i, array('encode_php_objs'));\n";
\r
881 $innercode .= "\$p$i =& php_{$prefix}_encode(\$p$i);\n";
\r
884 $innercode .= "\$msg->addparam(\$p$i);\n";
\r
885 $mdesc .= '* @param '.xmlrpc_2_php_type($ptype)." \$p$i\n";
\r
887 if ($client_copy_mode < 2)
\r
889 $plist[] = '$debug=0';
\r
890 $mdesc .= "* @param int \$debug when 1 (or 2) will enable debugging of the underlying {$prefix} call (defaults to 0)\n";
\r
892 $plist = implode(', ', $plist);
\r
893 $mdesc .= '* @return '.xmlrpc_2_php_type($msig[0])." (or an {$prefix}resp obj instance if call fails)\n*/\n";
\r
895 $innercode .= "\$res =& \${$this_}client->send(\$msg, $timeout, '$protocol');\n";
\r
898 if (is_string($fault_response) && ((strpos($fault_response, '%faultCode%') !== false) || (strpos($fault_response, '%faultString%') !== false)))
\r
900 $respcode = "str_replace(array('%faultCode%', '%faultString%'), array(\$res->faultCode(), \$res->faultString()), '".str_replace("'", "''", $fault_response)."')";
\r
904 $respcode = var_export($fault_response, true);
\r
909 $respcode = '$res';
\r
911 if ($decode_php_objects)
\r
913 $innercode .= "if (\$res->faultcode()) return $respcode; else return php_{$prefix}_decode(\$res->value(), array('decode_php_objs'));";
\r
917 $innercode .= "if (\$res->faultcode()) return $respcode; else return php_{$prefix}_decode(\$res->value());";
\r
920 $code = $code . $plist. ") {\n" . $innercode . "\n}\n";
\r
922 return array('source' => $code, 'docstring' => $mdesc);
\r
926 * Given necessary info, generate php code that will rebuild a client object
\r
927 * Take care that no full checking of input parameters is done to ensure that
\r
928 * valid php code is emitted.
\r
931 function build_client_wrapper_code($client, $verbatim_client_copy, $prefix='xmlrpc')
\r
933 $code = "\$client = new {$prefix}_client('".str_replace("'", "\'", $client->path).
\r
934 "', '" . str_replace("'", "\'", $client->server) . "', $client->port);\n";
\r
936 // copy all client fields to the client that will be generated runtime
\r
937 // (this provides for future expansion or subclassing of client obj)
\r
938 if ($verbatim_client_copy)
\r
940 foreach($client as $fld => $val)
\r
942 if($fld != 'debug' && $fld != 'return_type')
\r
944 $val = var_export($val, true);
\r
945 $code .= "\$client->$fld = $val;\n";
\r
949 // only make sure that client always returns the correct data type
\r
950 $code .= "\$client->return_type = '{$prefix}vals';\n";
\r
951 //$code .= "\$client->setDebug(\$debug);\n";
\r