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1<?php
2// by Edd Dumbill (C) 1999-2002
3// <edd@usefulinc.com>
4// $Id: xmlrpc.inc,v 1.174 2009/03/16 19:36:38 ggiunta Exp $
5
6// Copyright (c) 1999,2000,2002 Edd Dumbill.
7// All rights reserved.
8//
9// Redistribution and use in source and binary forms, with or without
10// modification, are permitted provided that the following conditions
11// are met:
12//
13// * Redistributions of source code must retain the above copyright
14// notice, this list of conditions and the following disclaimer.
15//
16// * Redistributions in binary form must reproduce the above
17// copyright notice, this list of conditions and the following
18// disclaimer in the documentation and/or other materials provided
19// with the distribution.
20//
21// * Neither the name of the "XML-RPC for PHP" nor the names of its
22// contributors may be used to endorse or promote products derived
23// from this software without specific prior written permission.
24//
25// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
28// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
29// REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
30// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
31// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
32// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
34// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
36// OF THE POSSIBILITY OF SUCH DAMAGE.
37
38 if(!function_exists('xml_parser_create'))
39 {
40 // For PHP 4 onward, XML functionality is always compiled-in on windows:
41 // no more need to dl-open it. It might have been compiled out on *nix...
42 if(strtoupper(substr(PHP_OS, 0, 3) != 'WIN'))
43 {
44 dl('xml.so');
45 }
46 }
47
48 // Try to be backward compat with php < 4.2 (are we not being nice ?)
49 $phpversion = phpversion();
50 if($phpversion[0] == '4' && $phpversion[2] < 2)
51 {
52 // give an opportunity to user to specify where to include other files from
53 if(!defined('PHP_XMLRPC_COMPAT_DIR'))
54 {
55 define('PHP_XMLRPC_COMPAT_DIR',dirname(__FILE__).'/compat/');
56 }
57 if($phpversion[2] == '0')
58 {
59 if($phpversion[4] < 6)
60 {
61 include(PHP_XMLRPC_COMPAT_DIR.'is_callable.php');
62 }
63 include(PHP_XMLRPC_COMPAT_DIR.'is_scalar.php');
64 include(PHP_XMLRPC_COMPAT_DIR.'array_key_exists.php');
65 include(PHP_XMLRPC_COMPAT_DIR.'version_compare.php');
66 }
67 include(PHP_XMLRPC_COMPAT_DIR.'var_export.php');
68 include(PHP_XMLRPC_COMPAT_DIR.'is_a.php');
69 }
70
71 // G. Giunta 2005/01/29: declare global these variables,
72 // so that xmlrpc.inc will work even if included from within a function
73 // Milosch: 2005/08/07 - explicitly request these via $GLOBALS where used.
74 $GLOBALS['xmlrpcI4']='i4';
75 $GLOBALS['xmlrpcInt']='int';
76 $GLOBALS['xmlrpcBoolean']='boolean';
77 $GLOBALS['xmlrpcDouble']='double';
78 $GLOBALS['xmlrpcString']='string';
79 $GLOBALS['xmlrpcDateTime']='dateTime.iso8601';
80 $GLOBALS['xmlrpcBase64']='base64';
81 $GLOBALS['xmlrpcArray']='array';
82 $GLOBALS['xmlrpcStruct']='struct';
83 $GLOBALS['xmlrpcValue']='undefined';
84
85 $GLOBALS['xmlrpcTypes']=array(
86 $GLOBALS['xmlrpcI4'] => 1,
87 $GLOBALS['xmlrpcInt'] => 1,
88 $GLOBALS['xmlrpcBoolean'] => 1,
89 $GLOBALS['xmlrpcString'] => 1,
90 $GLOBALS['xmlrpcDouble'] => 1,
91 $GLOBALS['xmlrpcDateTime'] => 1,
92 $GLOBALS['xmlrpcBase64'] => 1,
93 $GLOBALS['xmlrpcArray'] => 2,
94 $GLOBALS['xmlrpcStruct'] => 3
95 );
96
97 $GLOBALS['xmlrpc_valid_parents'] = array(
98 'VALUE' => array('MEMBER', 'DATA', 'PARAM', 'FAULT'),
99 'BOOLEAN' => array('VALUE'),
100 'I4' => array('VALUE'),
101 'INT' => array('VALUE'),
102 'STRING' => array('VALUE'),
103 'DOUBLE' => array('VALUE'),
104 'DATETIME.ISO8601' => array('VALUE'),
105 'BASE64' => array('VALUE'),
106 'MEMBER' => array('STRUCT'),
107 'NAME' => array('MEMBER'),
108 'DATA' => array('ARRAY'),
109 'ARRAY' => array('VALUE'),
110 'STRUCT' => array('VALUE'),
111 'PARAM' => array('PARAMS'),
112 'METHODNAME' => array('METHODCALL'),
113 'PARAMS' => array('METHODCALL', 'METHODRESPONSE'),
114 'FAULT' => array('METHODRESPONSE'),
115 'NIL' => array('VALUE') // only used when extension activated
116 );
117
118 // define extra types for supporting NULL (useful for json or <NIL/>)
119 $GLOBALS['xmlrpcNull']='null';
120 $GLOBALS['xmlrpcTypes']['null']=1;
121
122 // Not in use anymore since 2.0. Shall we remove it?
123 /// @deprecated
124 $GLOBALS['xmlEntities']=array(
125 'amp' => '&',
126 'quot' => '"',
127 'lt' => '<',
128 'gt' => '>',
129 'apos' => "'"
130 );
131
132 // tables used for transcoding different charsets into us-ascii xml
133
134 $GLOBALS['xml_iso88591_Entities']=array();
135 $GLOBALS['xml_iso88591_Entities']['in'] = array();
136 $GLOBALS['xml_iso88591_Entities']['out'] = array();
137 for ($i = 0; $i < 32; $i++)
138 {
139 $GLOBALS['xml_iso88591_Entities']['in'][] = chr($i);
140 $GLOBALS['xml_iso88591_Entities']['out'][] = '&#'.$i.';';
141 }
142 for ($i = 160; $i < 256; $i++)
143 {
144 $GLOBALS['xml_iso88591_Entities']['in'][] = chr($i);
145 $GLOBALS['xml_iso88591_Entities']['out'][] = '&#'.$i.';';
146 }
147
148 /// @todo add to iso table the characters from cp_1252 range, i.e. 128 to 159?
149 /// These will NOT be present in true ISO-8859-1, but will save the unwary
150 /// windows user from sending junk (though no luck when reciving them...)
151 /*
152 $GLOBALS['xml_cp1252_Entities']=array();
153 for ($i = 128; $i < 160; $i++)
154 {
155 $GLOBALS['xml_cp1252_Entities']['in'][] = chr($i);
156 }
157 $GLOBALS['xml_cp1252_Entities']['out'] = array(
158 '&#x20AC;', '?', '&#x201A;', '&#x0192;',
159 '&#x201E;', '&#x2026;', '&#x2020;', '&#x2021;',
160 '&#x02C6;', '&#x2030;', '&#x0160;', '&#x2039;',
161 '&#x0152;', '?', '&#x017D;', '?',
162 '?', '&#x2018;', '&#x2019;', '&#x201C;',
163 '&#x201D;', '&#x2022;', '&#x2013;', '&#x2014;',
164 '&#x02DC;', '&#x2122;', '&#x0161;', '&#x203A;',
165 '&#x0153;', '?', '&#x017E;', '&#x0178;'
166 );
167 */
168
169 $GLOBALS['xmlrpcerr'] = array(
170 'unknown_method'=>1,
171 'invalid_return'=>2,
172 'incorrect_params'=>3,
173 'introspect_unknown'=>4,
174 'http_error'=>5,
175 'no_data'=>6,
176 'no_ssl'=>7,
177 'curl_fail'=>8,
178 'invalid_request'=>15,
179 'no_curl'=>16,
180 'server_error'=>17,
181 'multicall_error'=>18,
182 'multicall_notstruct'=>9,
183 'multicall_nomethod'=>10,
184 'multicall_notstring'=>11,
185 'multicall_recursion'=>12,
186 'multicall_noparams'=>13,
187 'multicall_notarray'=>14,
188
189 'cannot_decompress'=>103,
190 'decompress_fail'=>104,
191 'dechunk_fail'=>105,
192 'server_cannot_decompress'=>106,
193 'server_decompress_fail'=>107
194 );
195
196 $GLOBALS['xmlrpcstr'] = array(
197 'unknown_method'=>'Unknown method',
198 'invalid_return'=>'Invalid return payload: enable debugging to examine incoming payload',
199 'incorrect_params'=>'Incorrect parameters passed to method',
200 'introspect_unknown'=>"Can't introspect: method unknown",
201 'http_error'=>"Didn't receive 200 OK from remote server.",
202 'no_data'=>'No data received from server.',
203 'no_ssl'=>'No SSL support compiled in.',
204 'curl_fail'=>'CURL error',
205 'invalid_request'=>'Invalid request payload',
206 'no_curl'=>'No CURL support compiled in.',
207 'server_error'=>'Internal server error',
208 'multicall_error'=>'Received from server invalid multicall response',
209 'multicall_notstruct'=>'system.multicall expected struct',
210 'multicall_nomethod'=>'missing methodName',
211 'multicall_notstring'=>'methodName is not a string',
212 'multicall_recursion'=>'recursive system.multicall forbidden',
213 'multicall_noparams'=>'missing params',
214 'multicall_notarray'=>'params is not an array',
215
216 'cannot_decompress'=>'Received from server compressed HTTP and cannot decompress',
217 'decompress_fail'=>'Received from server invalid compressed HTTP',
218 'dechunk_fail'=>'Received from server invalid chunked HTTP',
219 'server_cannot_decompress'=>'Received from client compressed HTTP request and cannot decompress',
220 'server_decompress_fail'=>'Received from client invalid compressed HTTP request'
221 );
222
223 // The charset encoding used by the server for received messages and
224 // by the client for received responses when received charset cannot be determined
225 // or is not supported
226 $GLOBALS['xmlrpc_defencoding']='UTF-8';
227
228 // The encoding used internally by PHP.
229 // String values received as xml will be converted to this, and php strings will be converted to xml
230 // as if having been coded with this
231 $GLOBALS['xmlrpc_internalencoding']='ISO-8859-1';
232
233 $GLOBALS['xmlrpcName']='XML-RPC for PHP';
234 $GLOBALS['xmlrpcVersion']='2.2.2';
235
236 // let user errors start at 800
237 $GLOBALS['xmlrpcerruser']=800;
238 // let XML parse errors start at 100
239 $GLOBALS['xmlrpcerrxml']=100;
240
241 // formulate backslashes for escaping regexp
242 // Not in use anymore since 2.0. Shall we remove it?
243 /// @deprecated
244 $GLOBALS['xmlrpc_backslash']=chr(92).chr(92);
245
246 // set to TRUE to enable correct decoding of <NIL/> values
247 $GLOBALS['xmlrpc_null_extension']=false;
248
249 // used to store state during parsing
250 // quick explanation of components:
251 // ac - used to accumulate values
252 // isf - used to indicate a parsing fault (2) or xmlrpcresp fault (1)
253 // isf_reason - used for storing xmlrpcresp fault string
254 // lv - used to indicate "looking for a value": implements
255 // the logic to allow values with no types to be strings
256 // params - used to store parameters in method calls
257 // method - used to store method name
258 // stack - array with genealogy of xml elements names:
259 // used to validate nesting of xmlrpc elements
260 $GLOBALS['_xh']=null;
261
262 /**
263 * Convert a string to the correct XML representation in a target charset
264 * To help correct communication of non-ascii chars inside strings, regardless
265 * of the charset used when sending requests, parsing them, sending responses
266 * and parsing responses, an option is to convert all non-ascii chars present in the message
267 * into their equivalent 'charset entity'. Charset entities enumerated this way
268 * are independent of the charset encoding used to transmit them, and all XML
269 * parsers are bound to understand them.
270 * Note that in the std case we are not sending a charset encoding mime type
271 * along with http headers, so we are bound by RFC 3023 to emit strict us-ascii.
272 *
273 * @todo do a bit of basic benchmarking (strtr vs. str_replace)
274 * @todo make usage of iconv() or recode_string() or mb_string() where available
275 */
276 function xmlrpc_encode_entitites($data, $src_encoding='', $dest_encoding='')
277 {
278 if ($src_encoding == '')
279 {
280 // lame, but we know no better...
281 $src_encoding = $GLOBALS['xmlrpc_internalencoding'];
282 }
283
284 switch(strtoupper($src_encoding.'_'.$dest_encoding))
285 {
286 case 'ISO-8859-1_':
287 case 'ISO-8859-1_US-ASCII':
288 $escaped_data = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
289 $escaped_data = str_replace($GLOBALS['xml_iso88591_Entities']['in'], $GLOBALS['xml_iso88591_Entities']['out'], $escaped_data);
290 break;
291 case 'ISO-8859-1_UTF-8':
292 $escaped_data = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
293 $escaped_data = utf8_encode($escaped_data);
294 break;
295 case 'ISO-8859-1_ISO-8859-1':
296 case 'US-ASCII_US-ASCII':
297 case 'US-ASCII_UTF-8':
298 case 'US-ASCII_':
299 case 'US-ASCII_ISO-8859-1':
300 case 'UTF-8_UTF-8':
301 //case 'CP1252_CP1252':
302 $escaped_data = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
303 break;
304 case 'UTF-8_':
305 case 'UTF-8_US-ASCII':
306 case 'UTF-8_ISO-8859-1':
307 // NB: this will choke on invalid UTF-8, going most likely beyond EOF
308 $escaped_data = '';
309 // be kind to users creating string xmlrpcvals out of different php types
310 $data = (string) $data;
311 $ns = strlen ($data);
312 for ($nn = 0; $nn < $ns; $nn++)
313 {
314 $ch = $data[$nn];
315 $ii = ord($ch);
316 //1 7 0bbbbbbb (127)
317 if ($ii < 128)
318 {
319 /// @todo shall we replace this with a (supposedly) faster str_replace?
320 switch($ii){
321 case 34:
322 $escaped_data .= '&quot;';
323 break;
324 case 38:
325 $escaped_data .= '&amp;';
326 break;
327 case 39:
328 $escaped_data .= '&apos;';
329 break;
330 case 60:
331 $escaped_data .= '&lt;';
332 break;
333 case 62:
334 $escaped_data .= '&gt;';
335 break;
336 default:
337 $escaped_data .= $ch;
338 } // switch
339 }
340 //2 11 110bbbbb 10bbbbbb (2047)
341 else if ($ii>>5 == 6)
342 {
343 $b1 = ($ii & 31);
344 $ii = ord($data[$nn+1]);
345 $b2 = ($ii & 63);
346 $ii = ($b1 * 64) + $b2;
347 $ent = sprintf ('&#%d;', $ii);
348 $escaped_data .= $ent;
349 $nn += 1;
350 }
351 //3 16 1110bbbb 10bbbbbb 10bbbbbb
352 else if ($ii>>4 == 14)
353 {
354 $b1 = ($ii & 15);
355 $ii = ord($data[$nn+1]);
356 $b2 = ($ii & 63);
357 $ii = ord($data[$nn+2]);
358 $b3 = ($ii & 63);
359 $ii = ((($b1 * 64) + $b2) * 64) + $b3;
360 $ent = sprintf ('&#%d;', $ii);
361 $escaped_data .= $ent;
362 $nn += 2;
363 }
364 //4 21 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
365 else if ($ii>>3 == 30)
366 {
367 $b1 = ($ii & 7);
368 $ii = ord($data[$nn+1]);
369 $b2 = ($ii & 63);
370 $ii = ord($data[$nn+2]);
371 $b3 = ($ii & 63);
372 $ii = ord($data[$nn+3]);
373 $b4 = ($ii & 63);
374 $ii = ((((($b1 * 64) + $b2) * 64) + $b3) * 64) + $b4;
375 $ent = sprintf ('&#%d;', $ii);
376 $escaped_data .= $ent;
377 $nn += 3;
378 }
379 }
380 break;
381/*
382 case 'CP1252_':
383 case 'CP1252_US-ASCII':
384 $escaped_data = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
385 $escaped_data = str_replace($GLOBALS['xml_iso88591_Entities']['in'], $GLOBALS['xml_iso88591_Entities']['out'], $escaped_data);
386 $escaped_data = str_replace($GLOBALS['xml_cp1252_Entities']['in'], $GLOBALS['xml_cp1252_Entities']['out'], $escaped_data);
387 break;
388 case 'CP1252_UTF-8':
389 $escaped_data = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
390 /// @todo we could use real UTF8 chars here instead of xml entities... (note that utf_8 encode all allone will NOT convert them)
391 $escaped_data = str_replace($GLOBALS['xml_cp1252_Entities']['in'], $GLOBALS['xml_cp1252_Entities']['out'], $escaped_data);
392 $escaped_data = utf8_encode($escaped_data);
393 break;
394 case 'CP1252_ISO-8859-1':
395 $escaped_data = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
396 // we might as well replave all funky chars with a '?' here, but we are kind and leave it to the receiving application layer to decide what to do with these weird entities...
397 $escaped_data = str_replace($GLOBALS['xml_cp1252_Entities']['in'], $GLOBALS['xml_cp1252_Entities']['out'], $escaped_data);
398 break;
399*/
400 default:
401 $escaped_data = '';
402 error_log("Converting from $src_encoding to $dest_encoding: not supported...");
403 }
404 return $escaped_data;
405 }
406
407 /// xml parser handler function for opening element tags
408 function xmlrpc_se($parser, $name, $attrs, $accept_single_vals=false)
409 {
410 // if invalid xmlrpc already detected, skip all processing
411 if ($GLOBALS['_xh']['isf'] < 2)
412 {
413 // check for correct element nesting
414 // top level element can only be of 2 types
415 /// @todo optimization creep: save this check into a bool variable, instead of using count() every time:
416 /// there is only a single top level element in xml anyway
417 if (count($GLOBALS['_xh']['stack']) == 0)
418 {
419 if ($name != 'METHODRESPONSE' && $name != 'METHODCALL' && (
420 $name != 'VALUE' && !$accept_single_vals))
421 {
422 $GLOBALS['_xh']['isf'] = 2;
423 $GLOBALS['_xh']['isf_reason'] = 'missing top level xmlrpc element';
424 return;
425 }
426 else
427 {
428 $GLOBALS['_xh']['rt'] = strtolower($name);
429 }
430 }
431 else
432 {
433 // not top level element: see if parent is OK
434 $parent = end($GLOBALS['_xh']['stack']);
435 if (!array_key_exists($name, $GLOBALS['xmlrpc_valid_parents']) || !in_array($parent, $GLOBALS['xmlrpc_valid_parents'][$name]))
436 {
437 $GLOBALS['_xh']['isf'] = 2;
438 $GLOBALS['_xh']['isf_reason'] = "xmlrpc element $name cannot be child of $parent";
439 return;
440 }
441 }
442
443 switch($name)
444 {
445 // optimize for speed switch cases: most common cases first
446 case 'VALUE':
447 /// @todo we could check for 2 VALUE elements inside a MEMBER or PARAM element
448 $GLOBALS['_xh']['vt']='value'; // indicator: no value found yet
449 $GLOBALS['_xh']['ac']='';
450 $GLOBALS['_xh']['lv']=1;
451 $GLOBALS['_xh']['php_class']=null;
452 break;
453 case 'I4':
454 case 'INT':
455 case 'STRING':
456 case 'BOOLEAN':
457 case 'DOUBLE':
458 case 'DATETIME.ISO8601':
459 case 'BASE64':
460 if ($GLOBALS['_xh']['vt']!='value')
461 {
462 //two data elements inside a value: an error occurred!
463 $GLOBALS['_xh']['isf'] = 2;
464 $GLOBALS['_xh']['isf_reason'] = "$name element following a {$GLOBALS['_xh']['vt']} element inside a single value";
465 return;
466 }
467 $GLOBALS['_xh']['ac']=''; // reset the accumulator
468 break;
469 case 'STRUCT':
470 case 'ARRAY':
471 if ($GLOBALS['_xh']['vt']!='value')
472 {
473 //two data elements inside a value: an error occurred!
474 $GLOBALS['_xh']['isf'] = 2;
475 $GLOBALS['_xh']['isf_reason'] = "$name element following a {$GLOBALS['_xh']['vt']} element inside a single value";
476 return;
477 }
478 // create an empty array to hold child values, and push it onto appropriate stack
479 $cur_val = array();
480 $cur_val['values'] = array();
481 $cur_val['type'] = $name;
482 // check for out-of-band information to rebuild php objs
483 // and in case it is found, save it
484 if (@isset($attrs['PHP_CLASS']))
485 {
486 $cur_val['php_class'] = $attrs['PHP_CLASS'];
487 }
488 $GLOBALS['_xh']['valuestack'][] = $cur_val;
489 $GLOBALS['_xh']['vt']='data'; // be prepared for a data element next
490 break;
491 case 'DATA':
492 if ($GLOBALS['_xh']['vt']!='data')
493 {
494 //two data elements inside a value: an error occurred!
495 $GLOBALS['_xh']['isf'] = 2;
496 $GLOBALS['_xh']['isf_reason'] = "found two data elements inside an array element";
497 return;
498 }
499 case 'METHODCALL':
500 case 'METHODRESPONSE':
501 case 'PARAMS':
502 // valid elements that add little to processing
503 break;
504 case 'METHODNAME':
505 case 'NAME':
506 /// @todo we could check for 2 NAME elements inside a MEMBER element
507 $GLOBALS['_xh']['ac']='';
508 break;
509 case 'FAULT':
510 $GLOBALS['_xh']['isf']=1;
511 break;
512 case 'MEMBER':
513 $GLOBALS['_xh']['valuestack'][count($GLOBALS['_xh']['valuestack'])-1]['name']=''; // set member name to null, in case we do not find in the xml later on
514 //$GLOBALS['_xh']['ac']='';
515 // Drop trough intentionally
516 case 'PARAM':
517 // clear value type, so we can check later if no value has been passed for this param/member
518 $GLOBALS['_xh']['vt']=null;
519 break;
520 case 'NIL':
521 if ($GLOBALS['xmlrpc_null_extension'])
522 {
523 if ($GLOBALS['_xh']['vt']!='value')
524 {
525 //two data elements inside a value: an error occurred!
526 $GLOBALS['_xh']['isf'] = 2;
527 $GLOBALS['_xh']['isf_reason'] = "$name element following a {$GLOBALS['_xh']['vt']} element inside a single value";
528 return;
529 }
530 $GLOBALS['_xh']['ac']=''; // reset the accumulator
531 break;
532 }
533 // we do not support the <NIL/> extension, so
534 // drop through intentionally
535 default:
536 /// INVALID ELEMENT: RAISE ISF so that it is later recognized!!!
537 $GLOBALS['_xh']['isf'] = 2;
538 $GLOBALS['_xh']['isf_reason'] = "found not-xmlrpc xml element $name";
539 break;
540 }
541
542 // Save current element name to stack, to validate nesting
543 $GLOBALS['_xh']['stack'][] = $name;
544
545 /// @todo optimization creep: move this inside the big switch() above
546 if($name!='VALUE')
547 {
548 $GLOBALS['_xh']['lv']=0;
549 }
550 }
551 }
552
553 /// Used in decoding xml chunks that might represent single xmlrpc values
554 function xmlrpc_se_any($parser, $name, $attrs)
555 {
556 xmlrpc_se($parser, $name, $attrs, true);
557 }
558
559 /// xml parser handler function for close element tags
560 function xmlrpc_ee($parser, $name, $rebuild_xmlrpcvals = true)
561 {
562 if ($GLOBALS['_xh']['isf'] < 2)
563 {
564 // push this element name from stack
565 // NB: if XML validates, correct opening/closing is guaranteed and
566 // we do not have to check for $name == $curr_elem.
567 // we also checked for proper nesting at start of elements...
568 $curr_elem = array_pop($GLOBALS['_xh']['stack']);
569
570 switch($name)
571 {
572 case 'VALUE':
573 // This if() detects if no scalar was inside <VALUE></VALUE>
574 if ($GLOBALS['_xh']['vt']=='value')
575 {
576 $GLOBALS['_xh']['value']=$GLOBALS['_xh']['ac'];
577 $GLOBALS['_xh']['vt']=$GLOBALS['xmlrpcString'];
578 }
579
580 if ($rebuild_xmlrpcvals)
581 {
582 // build the xmlrpc val out of the data received, and substitute it
583 $temp = new xmlrpcval($GLOBALS['_xh']['value'], $GLOBALS['_xh']['vt']);
584 // in case we got info about underlying php class, save it
585 // in the object we're rebuilding
586 if (isset($GLOBALS['_xh']['php_class']))
587 $temp->_php_class = $GLOBALS['_xh']['php_class'];
588 // check if we are inside an array or struct:
589 // if value just built is inside an array, let's move it into array on the stack
590 $vscount = count($GLOBALS['_xh']['valuestack']);
591 if ($vscount && $GLOBALS['_xh']['valuestack'][$vscount-1]['type']=='ARRAY')
592 {
593 $GLOBALS['_xh']['valuestack'][$vscount-1]['values'][] = $temp;
594 }
595 else
596 {
597 $GLOBALS['_xh']['value'] = $temp;
598 }
599 }
600 else
601 {
602 /// @todo this needs to treat correctly php-serialized objects,
603 /// since std deserializing is done by php_xmlrpc_decode,
604 /// which we will not be calling...
605 if (isset($GLOBALS['_xh']['php_class']))
606 {
607 }
608
609 // check if we are inside an array or struct:
610 // if value just built is inside an array, let's move it into array on the stack
611 $vscount = count($GLOBALS['_xh']['valuestack']);
612 if ($vscount && $GLOBALS['_xh']['valuestack'][$vscount-1]['type']=='ARRAY')
613 {
614 $GLOBALS['_xh']['valuestack'][$vscount-1]['values'][] = $GLOBALS['_xh']['value'];
615 }
616 }
617 break;
618 case 'BOOLEAN':
619 case 'I4':
620 case 'INT':
621 case 'STRING':
622 case 'DOUBLE':
623 case 'DATETIME.ISO8601':
624 case 'BASE64':
625 $GLOBALS['_xh']['vt']=strtolower($name);
626 /// @todo: optimization creep - remove the if/elseif cycle below
627 /// since the case() in which we are already did that
628 if ($name=='STRING')
629 {
630 $GLOBALS['_xh']['value']=$GLOBALS['_xh']['ac'];
631 }
632 elseif ($name=='DATETIME.ISO8601')
633 {
634 if (!preg_match('/^[0-9]{8}T[0-9]{2}:[0-9]{2}:[0-9]{2}$/', $GLOBALS['_xh']['ac']))
635 {
636 error_log('XML-RPC: invalid value received in DATETIME: '.$GLOBALS['_xh']['ac']);
637 }
638 $GLOBALS['_xh']['vt']=$GLOBALS['xmlrpcDateTime'];
639 $GLOBALS['_xh']['value']=$GLOBALS['_xh']['ac'];
640 }
641 elseif ($name=='BASE64')
642 {
643 /// @todo check for failure of base64 decoding / catch warnings
644 $GLOBALS['_xh']['value']=base64_decode($GLOBALS['_xh']['ac']);
645 }
646 elseif ($name=='BOOLEAN')
647 {
648 // special case here: we translate boolean 1 or 0 into PHP
649 // constants true or false.
650 // Strings 'true' and 'false' are accepted, even though the
651 // spec never mentions them (see eg. Blogger api docs)
652 // NB: this simple checks helps a lot sanitizing input, ie no
653 // security problems around here
654 if ($GLOBALS['_xh']['ac']=='1' || strcasecmp($GLOBALS['_xh']['ac'], 'true') == 0)
655 {
656 $GLOBALS['_xh']['value']=true;
657 }
658 else
659 {
660 // log if receiveing something strange, even though we set the value to false anyway
661 if ($GLOBALS['_xh']['ac']!='0' && strcasecmp($GLOBALS['_xh']['ac'], 'false') != 0)
662 error_log('XML-RPC: invalid value received in BOOLEAN: '.$GLOBALS['_xh']['ac']);
663 $GLOBALS['_xh']['value']=false;
664 }
665 }
666 elseif ($name=='DOUBLE')
667 {
668 // we have a DOUBLE
669 // we must check that only 0123456789-.<space> are characters here
670 // NOTE: regexp could be much stricter than this...
671 if (!preg_match('/^[+-eE0123456789 \t.]+$/', $GLOBALS['_xh']['ac']))
672 {
673 /// @todo: find a better way of throwing an error than this!
674 error_log('XML-RPC: non numeric value received in DOUBLE: '.$GLOBALS['_xh']['ac']);
675 $GLOBALS['_xh']['value']='ERROR_NON_NUMERIC_FOUND';
676 }
677 else
678 {
679 // it's ok, add it on
680 $GLOBALS['_xh']['value']=(double)$GLOBALS['_xh']['ac'];
681 }
682 }
683 else
684 {
685 // we have an I4/INT
686 // we must check that only 0123456789-<space> are characters here
687 if (!preg_match('/^[+-]?[0123456789 \t]+$/', $GLOBALS['_xh']['ac']))
688 {
689 /// @todo find a better way of throwing an error than this!
690 error_log('XML-RPC: non numeric value received in INT: '.$GLOBALS['_xh']['ac']);
691 $GLOBALS['_xh']['value']='ERROR_NON_NUMERIC_FOUND';
692 }
693 else
694 {
695 // it's ok, add it on
696 $GLOBALS['_xh']['value']=(int)$GLOBALS['_xh']['ac'];
697 }
698 }
699 //$GLOBALS['_xh']['ac']=''; // is this necessary?
700 $GLOBALS['_xh']['lv']=3; // indicate we've found a value
701 break;
702 case 'NAME':
703 $GLOBALS['_xh']['valuestack'][count($GLOBALS['_xh']['valuestack'])-1]['name'] = $GLOBALS['_xh']['ac'];
704 break;
705 case 'MEMBER':
706 //$GLOBALS['_xh']['ac']=''; // is this necessary?
707 // add to array in the stack the last element built,
708 // unless no VALUE was found
709 if ($GLOBALS['_xh']['vt'])
710 {
711 $vscount = count($GLOBALS['_xh']['valuestack']);
712 $GLOBALS['_xh']['valuestack'][$vscount-1]['values'][$GLOBALS['_xh']['valuestack'][$vscount-1]['name']] = $GLOBALS['_xh']['value'];
713 } else
714 error_log('XML-RPC: missing VALUE inside STRUCT in received xml');
715 break;
716 case 'DATA':
717 //$GLOBALS['_xh']['ac']=''; // is this necessary?
718 $GLOBALS['_xh']['vt']=null; // reset this to check for 2 data elements in a row - even if they're empty
719 break;
720 case 'STRUCT':
721 case 'ARRAY':
722 // fetch out of stack array of values, and promote it to current value
723 $curr_val = array_pop($GLOBALS['_xh']['valuestack']);
724 $GLOBALS['_xh']['value'] = $curr_val['values'];
725 $GLOBALS['_xh']['vt']=strtolower($name);
726 if (isset($curr_val['php_class']))
727 {
728 $GLOBALS['_xh']['php_class'] = $curr_val['php_class'];
729 }
730 break;
731 case 'PARAM':
732 // add to array of params the current value,
733 // unless no VALUE was found
734 if ($GLOBALS['_xh']['vt'])
735 {
736 $GLOBALS['_xh']['params'][]=$GLOBALS['_xh']['value'];
737 $GLOBALS['_xh']['pt'][]=$GLOBALS['_xh']['vt'];
738 }
739 else
740 error_log('XML-RPC: missing VALUE inside PARAM in received xml');
741 break;
742 case 'METHODNAME':
743 $GLOBALS['_xh']['method']=preg_replace('/^[\n\r\t ]+/', '', $GLOBALS['_xh']['ac']);
744 break;
745 case 'NIL':
746 if ($GLOBALS['xmlrpc_null_extension'])
747 {
748 $GLOBALS['_xh']['vt']='null';
749 $GLOBALS['_xh']['value']=null;
750 $GLOBALS['_xh']['lv']=3;
751 break;
752 }
753 // drop through intentionally if nil extension not enabled
754 case 'PARAMS':
755 case 'FAULT':
756 case 'METHODCALL':
757 case 'METHORESPONSE':
758 break;
759 default:
760 // End of INVALID ELEMENT!
761 // shall we add an assert here for unreachable code???
762 break;
763 }
764 }
765 }
766
767 /// Used in decoding xmlrpc requests/responses without rebuilding xmlrpc values
768 function xmlrpc_ee_fast($parser, $name)
769 {
770 xmlrpc_ee($parser, $name, false);
771 }
772
773 /// xml parser handler function for character data
774 function xmlrpc_cd($parser, $data)
775 {
776 // skip processing if xml fault already detected
777 if ($GLOBALS['_xh']['isf'] < 2)
778 {
779 // "lookforvalue==3" means that we've found an entire value
780 // and should discard any further character data
781 if($GLOBALS['_xh']['lv']!=3)
782 {
783 // G. Giunta 2006-08-23: useless change of 'lv' from 1 to 2
784 //if($GLOBALS['_xh']['lv']==1)
785 //{
786 // if we've found text and we're just in a <value> then
787 // say we've found a value
788 //$GLOBALS['_xh']['lv']=2;
789 //}
790 // we always initialize the accumulator before starting parsing, anyway...
791 //if(!@isset($GLOBALS['_xh']['ac']))
792 //{
793 // $GLOBALS['_xh']['ac'] = '';
794 //}
795 $GLOBALS['_xh']['ac'].=$data;
796 }
797 }
798 }
799
800 /// xml parser handler function for 'other stuff', ie. not char data or
801 /// element start/end tag. In fact it only gets called on unknown entities...
802 function xmlrpc_dh($parser, $data)
803 {
804 // skip processing if xml fault already detected
805 if ($GLOBALS['_xh']['isf'] < 2)
806 {
807 if(substr($data, 0, 1) == '&' && substr($data, -1, 1) == ';')
808 {
809 // G. Giunta 2006-08-25: useless change of 'lv' from 1 to 2
810 //if($GLOBALS['_xh']['lv']==1)
811 //{
812 // $GLOBALS['_xh']['lv']=2;
813 //}
814 $GLOBALS['_xh']['ac'].=$data;
815 }
816 }
817 return true;
818 }
819
820 class xmlrpc_client
821 {
822 var $path;
823 var $server;
824 var $port=0;
825 var $method='http';
826 var $errno;
827 var $errstr;
828 var $debug=0;
829 var $username='';
830 var $password='';
831 var $authtype=1;
832 var $cert='';
833 var $certpass='';
834 var $cacert='';
835 var $cacertdir='';
836 var $key='';
837 var $keypass='';
838 var $verifypeer=true;
839 var $verifyhost=1;
840 var $no_multicall=false;
841 var $proxy='';
842 var $proxyport=0;
843 var $proxy_user='';
844 var $proxy_pass='';
845 var $proxy_authtype=1;
846 var $cookies=array();
847 /**
848 * List of http compression methods accepted by the client for responses.
849 * NB: PHP supports deflate, gzip compressions out of the box if compiled w. zlib
850 *
851 * NNB: you can set it to any non-empty array for HTTP11 and HTTPS, since
852 * in those cases it will be up to CURL to decide the compression methods
853 * it supports. You might check for the presence of 'zlib' in the output of
854 * curl_version() to determine wheter compression is supported or not
855 */
856 var $accepted_compression = array();
857 /**
858 * Name of compression scheme to be used for sending requests.
859 * Either null, gzip or deflate
860 */
861 var $request_compression = '';
862 /**
863 * CURL handle: used for keep-alive connections (PHP 4.3.8 up, see:
864 * http://curl.haxx.se/docs/faq.html#7.3)
865 */
866 var $xmlrpc_curl_handle = null;
867 /// Wheter to use persistent connections for http 1.1 and https
868 var $keepalive = false;
869 /// Charset encodings that can be decoded without problems by the client
870 var $accepted_charset_encodings = array();
871 /// Charset encoding to be used in serializing request. NULL = use ASCII
872 var $request_charset_encoding = '';
873 /**
874 * Decides the content of xmlrpcresp objects returned by calls to send()
875 * valid strings are 'xmlrpcvals', 'phpvals' or 'xml'
876 */
877 var $return_type = 'xmlrpcvals';
878
879 /**
880 * @param string $path either the complete server URL or the PATH part of the xmlrc server URL, e.g. /xmlrpc/server.php
881 * @param string $server the server name / ip address
882 * @param integer $port the port the server is listening on, defaults to 80 or 443 depending on protocol used
883 * @param string $method the http protocol variant: defaults to 'http', 'https' and 'http11' can be used if CURL is installed
884 */
885 function xmlrpc_client($path, $server='', $port='', $method='')
886 {
887 // allow user to specify all params in $path
888 if($server == '' and $port == '' and $method == '')
889 {
890 $parts = parse_url($path);
891 $server = $parts['host'];
892 $path = isset($parts['path']) ? $parts['path'] : '';
893 if(isset($parts['query']))
894 {
895 $path .= '?'.$parts['query'];
896 }
897 if(isset($parts['fragment']))
898 {
899 $path .= '#'.$parts['fragment'];
900 }
901 if(isset($parts['port']))
902 {
903 $port = $parts['port'];
904 }
905 if(isset($parts['scheme']))
906 {
907 $method = $parts['scheme'];
908 }
909 if(isset($parts['user']))
910 {
911 $this->username = $parts['user'];
912 }
913 if(isset($parts['pass']))
914 {
915 $this->password = $parts['pass'];
916 }
917 }
918 if($path == '' || $path[0] != '/')
919 {
920 $this->path='/'.$path;
921 }
922 else
923 {
924 $this->path=$path;
925 }
926 $this->server=$server;
927 if($port != '')
928 {
929 $this->port=$port;
930 }
931 if($method != '')
932 {
933 $this->method=$method;
934 }
935
936 // if ZLIB is enabled, let the client by default accept compressed responses
937 if(function_exists('gzinflate') || (
938 function_exists('curl_init') && (($info = curl_version()) &&
939 ((is_string($info) && strpos($info, 'zlib') !== null) || isset($info['libz_version'])))
940 ))
941 {
942 $this->accepted_compression = array('gzip', 'deflate');
943 }
944
945 // keepalives: enabled by default ONLY for PHP >= 4.3.8
946 // (see http://curl.haxx.se/docs/faq.html#7.3)
947 if(version_compare(phpversion(), '4.3.8') >= 0)
948 {
949 $this->keepalive = true;
950 }
951
952 // by default the xml parser can support these 3 charset encodings
953 $this->accepted_charset_encodings = array('UTF-8', 'ISO-8859-1', 'US-ASCII');
954 }
955
956 /**
957 * Enables/disables the echoing to screen of the xmlrpc responses received
958 * @param integer $debug values 0, 1 and 2 are supported (2 = echo sent msg too, before received response)
959 * @access public
960 */
961 function setDebug($in)
962 {
963 $this->debug=$in;
964 }
965
966 /**
967 * Add some http BASIC AUTH credentials, used by the client to authenticate
968 * @param string $u username
969 * @param string $p password
970 * @param integer $t auth type. See curl_setopt man page for supported auth types. Defaults to CURLAUTH_BASIC (basic auth)
971 * @access public
972 */
973 function setCredentials($u, $p, $t=1)
974 {
975 $this->username=$u;
976 $this->password=$p;
977 $this->authtype=$t;
978 }
979
980 /**
981 * Add a client-side https certificate
982 * @param string $cert
983 * @param string $certpass
984 * @access public
985 */
986 function setCertificate($cert, $certpass)
987 {
988 $this->cert = $cert;
989 $this->certpass = $certpass;
990 }
991
992 /**
993 * Add a CA certificate to verify server with (see man page about
994 * CURLOPT_CAINFO for more details
995 * @param string $cacert certificate file name (or dir holding certificates)
996 * @param bool $is_dir set to true to indicate cacert is a dir. defaults to false
997 * @access public
998 */
999 function setCaCertificate($cacert, $is_dir=false)
1000 {
1001 if ($is_dir)
1002 {
1003 $this->cacertdir = $cacert;
1004 }
1005 else
1006 {
1007 $this->cacert = $cacert;
1008 }
1009 }
1010
1011 /**
1012 * Set attributes for SSL communication: private SSL key
1013 * NB: does not work in older php/curl installs
1014 * Thanks to Daniel Convissor
1015 * @param string $key The name of a file containing a private SSL key
1016 * @param string $keypass The secret password needed to use the private SSL key
1017 * @access public
1018 */
1019 function setKey($key, $keypass)
1020 {
1021 $this->key = $key;
1022 $this->keypass = $keypass;
1023 }
1024
1025 /**
1026 * Set attributes for SSL communication: verify server certificate
1027 * @param bool $i enable/disable verification of peer certificate
1028 * @access public
1029 */
1030 function setSSLVerifyPeer($i)
1031 {
1032 $this->verifypeer = $i;
1033 }
1034
1035 /**
1036 * Set attributes for SSL communication: verify match of server cert w. hostname
1037 * @param int $i
1038 * @access public
1039 */
1040 function setSSLVerifyHost($i)
1041 {
1042 $this->verifyhost = $i;
1043 }
1044
1045 /**
1046 * Set proxy info
1047 * @param string $proxyhost
1048 * @param string $proxyport Defaults to 8080 for HTTP and 443 for HTTPS
1049 * @param string $proxyusername Leave blank if proxy has public access
1050 * @param string $proxypassword Leave blank if proxy has public access
1051 * @param int $proxyauthtype set to constant CURLAUTH_NTLM to use NTLM auth with proxy
1052 * @access public
1053 */
1054 function setProxy($proxyhost, $proxyport, $proxyusername = '', $proxypassword = '', $proxyauthtype = 1)
1055 {
1056 $this->proxy = $proxyhost;
1057 $this->proxyport = $proxyport;
1058 $this->proxy_user = $proxyusername;
1059 $this->proxy_pass = $proxypassword;
1060 $this->proxy_authtype = $proxyauthtype;
1061 }
1062
1063 /**
1064 * Enables/disables reception of compressed xmlrpc responses.
1065 * Note that enabling reception of compressed responses merely adds some standard
1066 * http headers to xmlrpc requests. It is up to the xmlrpc server to return
1067 * compressed responses when receiving such requests.
1068 * @param string $compmethod either 'gzip', 'deflate', 'any' or ''
1069 * @access public
1070 */
1071 function setAcceptedCompression($compmethod)
1072 {
1073 if ($compmethod == 'any')
1074 $this->accepted_compression = array('gzip', 'deflate');
1075 else
1076 $this->accepted_compression = array($compmethod);
1077 }
1078
1079 /**
1080 * Enables/disables http compression of xmlrpc request.
1081 * Take care when sending compressed requests: servers might not support them
1082 * (and automatic fallback to uncompressed requests is not yet implemented)
1083 * @param string $compmethod either 'gzip', 'deflate' or ''
1084 * @access public
1085 */
1086 function setRequestCompression($compmethod)
1087 {
1088 $this->request_compression = $compmethod;
1089 }
1090
1091 /**
1092 * Adds a cookie to list of cookies that will be sent to server.
1093 * NB: setting any param but name and value will turn the cookie into a 'version 1' cookie:
1094 * do not do it unless you know what you are doing
1095 * @param string $name
1096 * @param string $value
1097 * @param string $path
1098 * @param string $domain
1099 * @param int $port
1100 * @access public
1101 *
1102 * @todo check correctness of urlencoding cookie value (copied from php way of doing it...)
1103 */
1104 function setCookie($name, $value='', $path='', $domain='', $port=null)
1105 {
1106 $this->cookies[$name]['value'] = urlencode($value);
1107 if ($path || $domain || $port)
1108 {
1109 $this->cookies[$name]['path'] = $path;
1110 $this->cookies[$name]['domain'] = $domain;
1111 $this->cookies[$name]['port'] = $port;
1112 $this->cookies[$name]['version'] = 1;
1113 }
1114 else
1115 {
1116 $this->cookies[$name]['version'] = 0;
1117 }
1118 }
1119
1120 /**
1121 * Send an xmlrpc request
1122 * @param mixed $msg The message object, or an array of messages for using multicall, or the complete xml representation of a request
1123 * @param integer $timeout Connection timeout, in seconds, If unspecified, a platform specific timeout will apply
1124 * @param string $method if left unspecified, the http protocol chosen during creation of the object will be used
1125 * @return xmlrpcresp
1126 * @access public
1127 */
1128 function& send($msg, $timeout=0, $method='')
1129 {
1130 // if user deos not specify http protocol, use native method of this client
1131 // (i.e. method set during call to constructor)
1132 if($method == '')
1133 {
1134 $method = $this->method;
1135 }
1136
1137 if(is_array($msg))
1138 {
1139 // $msg is an array of xmlrpcmsg's
1140 $r = $this->multicall($msg, $timeout, $method);
1141 return $r;
1142 }
1143 elseif(is_string($msg))
1144 {
1145 $n = new xmlrpcmsg('');
1146 $n->payload = $msg;
1147 $msg = $n;
1148 }
1149
1150 // where msg is an xmlrpcmsg
1151 $msg->debug=$this->debug;
1152
1153 if($method == 'https')
1154 {
1155 $r =& $this->sendPayloadHTTPS(
1156 $msg,
1157 $this->server,
1158 $this->port,
1159 $timeout,
1160 $this->username,
1161 $this->password,
1162 $this->authtype,
1163 $this->cert,
1164 $this->certpass,
1165 $this->cacert,
1166 $this->cacertdir,
1167 $this->proxy,
1168 $this->proxyport,
1169 $this->proxy_user,
1170 $this->proxy_pass,
1171 $this->proxy_authtype,
1172 $this->keepalive,
1173 $this->key,
1174 $this->keypass
1175 );
1176 }
1177 elseif($method == 'http11')
1178 {
1179 $r =& $this->sendPayloadCURL(
1180 $msg,
1181 $this->server,
1182 $this->port,
1183 $timeout,
1184 $this->username,
1185 $this->password,
1186 $this->authtype,
1187 null,
1188 null,
1189 null,
1190 null,
1191 $this->proxy,
1192 $this->proxyport,
1193 $this->proxy_user,
1194 $this->proxy_pass,
1195 $this->proxy_authtype,
1196 'http',
1197 $this->keepalive
1198 );
1199 }
1200 else
1201 {
1202 $r =& $this->sendPayloadHTTP10(
1203 $msg,
1204 $this->server,
1205 $this->port,
1206 $timeout,
1207 $this->username,
1208 $this->password,
1209 $this->authtype,
1210 $this->proxy,
1211 $this->proxyport,
1212 $this->proxy_user,
1213 $this->proxy_pass,
1214 $this->proxy_authtype
1215 );
1216 }
1217
1218 return $r;
1219 }
1220
1221 /**
1222 * @access private
1223 */
1224 function &sendPayloadHTTP10($msg, $server, $port, $timeout=0,
1225 $username='', $password='', $authtype=1, $proxyhost='',
1226 $proxyport=0, $proxyusername='', $proxypassword='', $proxyauthtype=1)
1227 {
1228 if($port==0)
1229 {
1230 $port=80;
1231 }
1232
1233 // Only create the payload if it was not created previously
1234 if(empty($msg->payload))
1235 {
1236 $msg->createPayload($this->request_charset_encoding);
1237 }
1238
1239 $payload = $msg->payload;
1240 // Deflate request body and set appropriate request headers
1241 if(function_exists('gzdeflate') && ($this->request_compression == 'gzip' || $this->request_compression == 'deflate'))
1242 {
1243 if($this->request_compression == 'gzip')
1244 {
1245 $a = @gzencode($payload);
1246 if($a)
1247 {
1248 $payload = $a;
1249 $encoding_hdr = "Content-Encoding: gzip\r\n";
1250 }
1251 }
1252 else
1253 {
1254 $a = @gzcompress($payload);
1255 if($a)
1256 {
1257 $payload = $a;
1258 $encoding_hdr = "Content-Encoding: deflate\r\n";
1259 }
1260 }
1261 }
1262 else
1263 {
1264 $encoding_hdr = '';
1265 }
1266
1267 // thanks to Grant Rauscher <grant7@firstworld.net> for this
1268 $credentials='';
1269 if($username!='')
1270 {
1271 $credentials='Authorization: Basic ' . base64_encode($username . ':' . $password) . "\r\n";
1272 if ($authtype != 1)
1273 {
1274 error_log('XML-RPC: xmlrpc_client::send: warning. Only Basic auth is supported with HTTP 1.0');
1275 }
1276 }
1277
1278 $accepted_encoding = '';
1279 if(is_array($this->accepted_compression) && count($this->accepted_compression))
1280 {
1281 $accepted_encoding = 'Accept-Encoding: ' . implode(', ', $this->accepted_compression) . "\r\n";
1282 }
1283
1284 $proxy_credentials = '';
1285 if($proxyhost)
1286 {
1287 if($proxyport == 0)
1288 {
1289 $proxyport = 8080;
1290 }
1291 $connectserver = $proxyhost;
1292 $connectport = $proxyport;
1293 $uri = 'http://'.$server.':'.$port.$this->path;
1294 if($proxyusername != '')
1295 {
1296 if ($proxyauthtype != 1)
1297 {
1298 error_log('XML-RPC: xmlrpc_client::send: warning. Only Basic auth to proxy is supported with HTTP 1.0');
1299 }
1300 $proxy_credentials = 'Proxy-Authorization: Basic ' . base64_encode($proxyusername.':'.$proxypassword) . "\r\n";
1301 }
1302 }
1303 else
1304 {
1305 $connectserver = $server;
1306 $connectport = $port;
1307 $uri = $this->path;
1308 }
1309
1310 // Cookie generation, as per rfc2965 (version 1 cookies) or
1311 // netscape's rules (version 0 cookies)
1312 $cookieheader='';
1313 if (count($this->cookies))
1314 {
1315 $version = '';
1316 foreach ($this->cookies as $name => $cookie)
1317 {
1318 if ($cookie['version'])
1319 {
1320 $version = ' $Version="' . $cookie['version'] . '";';
1321 $cookieheader .= ' ' . $name . '="' . $cookie['value'] . '";';
1322 if ($cookie['path'])
1323 $cookieheader .= ' $Path="' . $cookie['path'] . '";';
1324 if ($cookie['domain'])
1325 $cookieheader .= ' $Domain="' . $cookie['domain'] . '";';
1326 if ($cookie['port'])
1327 $cookieheader .= ' $Port="' . $cookie['port'] . '";';
1328 }
1329 else
1330 {
1331 $cookieheader .= ' ' . $name . '=' . $cookie['value'] . ";";
1332 }
1333 }
1334 $cookieheader = 'Cookie:' . $version . substr($cookieheader, 0, -1) . "\r\n";
1335 }
1336
1337 $op= 'POST ' . $uri. " HTTP/1.0\r\n" .
1338 'User-Agent: ' . $GLOBALS['xmlrpcName'] . ' ' . $GLOBALS['xmlrpcVersion'] . "\r\n" .
1339 'Host: '. $server . ':' . $port . "\r\n" .
1340 $credentials .
1341 $proxy_credentials .
1342 $accepted_encoding .
1343 $encoding_hdr .
1344 'Accept-Charset: ' . implode(',', $this->accepted_charset_encodings) . "\r\n" .
1345 $cookieheader .
1346 'Content-Type: ' . $msg->content_type . "\r\nContent-Length: " .
1347 strlen($payload) . "\r\n\r\n" .
1348 $payload;
1349
1350 if($this->debug > 1)
1351 {
1352 print "<PRE>\n---SENDING---\n" . htmlentities($op) . "\n---END---\n</PRE>";
1353 // let the client see this now in case http times out...
1354 flush();
1355 }
1356
1357 if($timeout>0)
1358 {
1359 $fp=@fsockopen($connectserver, $connectport, $this->errno, $this->errstr, $timeout);
1360 }
1361 else
1362 {
1363 $fp=@fsockopen($connectserver, $connectport, $this->errno, $this->errstr);
1364 }
1365 if($fp)
1366 {
1367 if($timeout>0 && function_exists('stream_set_timeout'))
1368 {
1369 stream_set_timeout($fp, $timeout);
1370 }
1371 }
1372 else
1373 {
1374 $this->errstr='Connect error: '.$this->errstr;
1375 $r= new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['http_error'], $this->errstr . ' (' . $this->errno . ')');
1376 return $r;
1377 }
1378
1379 if(!fputs($fp, $op, strlen($op)))
1380 {
1381 fclose($fp);
1382 $this->errstr='Write error';
1383 $r= new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['http_error'], $this->errstr);
1384 return $r;
1385 }
1386 else
1387 {
1388 // reset errno and errstr on succesful socket connection
1389 $this->errstr = '';
1390 }
1391 // G. Giunta 2005/10/24: close socket before parsing.
1392 // should yeld slightly better execution times, and make easier recursive calls (e.g. to follow http redirects)
1393 $ipd='';
1394 do
1395 {
1396 // shall we check for $data === FALSE?
1397 // as per the manual, it signals an error
1398 $ipd.=fread($fp, 32768);
1399 } while(!feof($fp));
1400 fclose($fp);
1401 $r =& $msg->parseResponse($ipd, false, $this->return_type);
1402 return $r;
1403
1404 }
1405
1406 /**
1407 * @access private
1408 */
1409 function &sendPayloadHTTPS($msg, $server, $port, $timeout=0, $username='',
1410 $password='', $authtype=1, $cert='',$certpass='', $cacert='', $cacertdir='',
1411 $proxyhost='', $proxyport=0, $proxyusername='', $proxypassword='', $proxyauthtype=1,
1412 $keepalive=false, $key='', $keypass='')
1413 {
1414 $r =& $this->sendPayloadCURL($msg, $server, $port, $timeout, $username,
1415 $password, $authtype, $cert, $certpass, $cacert, $cacertdir, $proxyhost, $proxyport,
1416 $proxyusername, $proxypassword, $proxyauthtype, 'https', $keepalive, $key, $keypass);
1417 return $r;
1418 }
1419
1420 /**
1421 * Contributed by Justin Miller <justin@voxel.net>
1422 * Requires curl to be built into PHP
1423 * NB: CURL versions before 7.11.10 cannot use proxy to talk to https servers!
1424 * @access private
1425 */
1426 function &sendPayloadCURL($msg, $server, $port, $timeout=0, $username='',
1427 $password='', $authtype=1, $cert='', $certpass='', $cacert='', $cacertdir='',
1428 $proxyhost='', $proxyport=0, $proxyusername='', $proxypassword='', $proxyauthtype=1, $method='https',
1429 $keepalive=false, $key='', $keypass='')
1430 {
1431 if(!function_exists('curl_init'))
1432 {
1433 $this->errstr='CURL unavailable on this install';
1434 $r= new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['no_curl'], $GLOBALS['xmlrpcstr']['no_curl']);
1435 return $r;
1436 }
1437 if($method == 'https')
1438 {
1439 if(($info = curl_version()) &&
1440 ((is_string($info) && strpos($info, 'OpenSSL') === null) || (is_array($info) && !isset($info['ssl_version']))))
1441 {
1442 $this->errstr='SSL unavailable on this install';
1443 $r= new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['no_ssl'], $GLOBALS['xmlrpcstr']['no_ssl']);
1444 return $r;
1445 }
1446 }
1447
1448 if($port == 0)
1449 {
1450 if($method == 'http')
1451 {
1452 $port = 80;
1453 }
1454 else
1455 {
1456 $port = 443;
1457 }
1458 }
1459
1460 // Only create the payload if it was not created previously
1461 if(empty($msg->payload))
1462 {
1463 $msg->createPayload($this->request_charset_encoding);
1464 }
1465
1466 // Deflate request body and set appropriate request headers
1467 $payload = $msg->payload;
1468 if(function_exists('gzdeflate') && ($this->request_compression == 'gzip' || $this->request_compression == 'deflate'))
1469 {
1470 if($this->request_compression == 'gzip')
1471 {
1472 $a = @gzencode($payload);
1473 if($a)
1474 {
1475 $payload = $a;
1476 $encoding_hdr = 'Content-Encoding: gzip';
1477 }
1478 }
1479 else
1480 {
1481 $a = @gzcompress($payload);
1482 if($a)
1483 {
1484 $payload = $a;
1485 $encoding_hdr = 'Content-Encoding: deflate';
1486 }
1487 }
1488 }
1489 else
1490 {
1491 $encoding_hdr = '';
1492 }
1493
1494 if($this->debug > 1)
1495 {
1496 print "<PRE>\n---SENDING---\n" . htmlentities($payload) . "\n---END---\n</PRE>";
1497 // let the client see this now in case http times out...
1498 flush();
1499 }
1500
1501 if(!$keepalive || !$this->xmlrpc_curl_handle)
1502 {
1503 $curl = curl_init($method . '://' . $server . ':' . $port . $this->path);
1504 if($keepalive)
1505 {
1506 $this->xmlrpc_curl_handle = $curl;
1507 }
1508 }
1509 else
1510 {
1511 $curl = $this->xmlrpc_curl_handle;
1512 }
1513
1514 // results into variable
1515 curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
1516
1517 if($this->debug)
1518 {
1519 curl_setopt($curl, CURLOPT_VERBOSE, 1);
1520 }
1521 curl_setopt($curl, CURLOPT_USERAGENT, $GLOBALS['xmlrpcName'].' '.$GLOBALS['xmlrpcVersion']);
1522 // required for XMLRPC: post the data
1523 curl_setopt($curl, CURLOPT_POST, 1);
1524 // the data
1525 curl_setopt($curl, CURLOPT_POSTFIELDS, $payload);
1526
1527 // return the header too
1528 curl_setopt($curl, CURLOPT_HEADER, 1);
1529
1530 // will only work with PHP >= 5.0
1531 // NB: if we set an empty string, CURL will add http header indicating
1532 // ALL methods it is supporting. This is possibly a better option than
1533 // letting the user tell what curl can / cannot do...
1534 if(is_array($this->accepted_compression) && count($this->accepted_compression))
1535 {
1536 //curl_setopt($curl, CURLOPT_ENCODING, implode(',', $this->accepted_compression));
1537 // empty string means 'any supported by CURL' (shall we catch errors in case CURLOPT_SSLKEY undefined ?)
1538 if (count($this->accepted_compression) == 1)
1539 {
1540 curl_setopt($curl, CURLOPT_ENCODING, $this->accepted_compression[0]);
1541 }
1542 else
1543 curl_setopt($curl, CURLOPT_ENCODING, '');
1544 }
1545 // extra headers
1546 $headers = array('Content-Type: ' . $msg->content_type , 'Accept-Charset: ' . implode(',', $this->accepted_charset_encodings));
1547 // if no keepalive is wanted, let the server know it in advance
1548 if(!$keepalive)
1549 {
1550 $headers[] = 'Connection: close';
1551 }
1552 // request compression header
1553 if($encoding_hdr)
1554 {
1555 $headers[] = $encoding_hdr;
1556 }
1557
1558 curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
1559 // timeout is borked
1560 if($timeout)
1561 {
1562 curl_setopt($curl, CURLOPT_TIMEOUT, $timeout == 1 ? 1 : $timeout - 1);
1563 }
1564
1565 if($username && $password)
1566 {
1567 curl_setopt($curl, CURLOPT_USERPWD, $username.':'.$password);
1568 if (defined('CURLOPT_HTTPAUTH'))
1569 {
1570 curl_setopt($curl, CURLOPT_HTTPAUTH, $authtype);
1571 }
1572 else if ($authtype != 1)
1573 {
1574 error_log('XML-RPC: xmlrpc_client::send: warning. Only Basic auth is supported by the current PHP/curl install');
1575 }
1576 }
1577
1578 if($method == 'https')
1579 {
1580 // set cert file
1581 if($cert)
1582 {
1583 curl_setopt($curl, CURLOPT_SSLCERT, $cert);
1584 }
1585 // set cert password
1586 if($certpass)
1587 {
1588 curl_setopt($curl, CURLOPT_SSLCERTPASSWD, $certpass);
1589 }
1590 // whether to verify remote host's cert
1591 curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, $this->verifypeer);
1592 // set ca certificates file/dir
1593 if($cacert)
1594 {
1595 curl_setopt($curl, CURLOPT_CAINFO, $cacert);
1596 }
1597 if($cacertdir)
1598 {
1599 curl_setopt($curl, CURLOPT_CAPATH, $cacertdir);
1600 }
1601 // set key file (shall we catch errors in case CURLOPT_SSLKEY undefined ?)
1602 if($key)
1603 {
1604 curl_setopt($curl, CURLOPT_SSLKEY, $key);
1605 }
1606 // set key password (shall we catch errors in case CURLOPT_SSLKEY undefined ?)
1607 if($keypass)
1608 {
1609 curl_setopt($curl, CURLOPT_SSLKEYPASSWD, $keypass);
1610 }
1611 // whether to verify cert's common name (CN); 0 for no, 1 to verify that it exists, and 2 to verify that it matches the hostname used
1612 curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, $this->verifyhost);
1613 }
1614
1615 // proxy info
1616 if($proxyhost)
1617 {
1618 if($proxyport == 0)
1619 {
1620 $proxyport = 8080; // NB: even for HTTPS, local connection is on port 8080
1621 }
1622 curl_setopt($curl, CURLOPT_PROXY, $proxyhost.':'.$proxyport);
1623 //curl_setopt($curl, CURLOPT_PROXYPORT,$proxyport);
1624 if($proxyusername)
1625 {
1626 curl_setopt($curl, CURLOPT_PROXYUSERPWD, $proxyusername.':'.$proxypassword);
1627 if (defined('CURLOPT_PROXYAUTH'))
1628 {
1629 curl_setopt($curl, CURLOPT_PROXYAUTH, $proxyauthtype);
1630 }
1631 else if ($proxyauthtype != 1)
1632 {
1633 error_log('XML-RPC: xmlrpc_client::send: warning. Only Basic auth to proxy is supported by the current PHP/curl install');
1634 }
1635 }
1636 }
1637
1638 // NB: should we build cookie http headers by hand rather than let CURL do it?
1639 // the following code does not honour 'expires', 'path' and 'domain' cookie attributes
1640 // set to client obj the the user...
1641 if (count($this->cookies))
1642 {
1643 $cookieheader = '';
1644 foreach ($this->cookies as $name => $cookie)
1645 {
1646 $cookieheader .= $name . '=' . $cookie['value'] . '; ';
1647 }
1648 curl_setopt($curl, CURLOPT_COOKIE, substr($cookieheader, 0, -2));
1649 }
1650
1651 $result = curl_exec($curl);
1652
1653 if ($this->debug > 1)
1654 {
1655 print "<PRE>\n---CURL INFO---\n";
1656 foreach(curl_getinfo($curl) as $name => $val)
1657 print $name . ': ' . htmlentities($val). "\n";
1658 print "---END---\n</PRE>";
1659 }
1660
1661 if(!$result) /// @todo we should use a better check here - what if we get back '' or '0'?
1662 {
1663 $this->errstr='no response';
1664 $resp= new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['curl_fail'], $GLOBALS['xmlrpcstr']['curl_fail']. ': '. curl_error($curl));
1665 curl_close($curl);
1666 if($keepalive)
1667 {
1668 $this->xmlrpc_curl_handle = null;
1669 }
1670 }
1671 else
1672 {
1673 if(!$keepalive)
1674 {
1675 curl_close($curl);
1676 }
1677 $resp =& $msg->parseResponse($result, true, $this->return_type);
1678 }
1679 return $resp;
1680 }
1681
1682 /**
1683 * Send an array of request messages and return an array of responses.
1684 * Unless $this->no_multicall has been set to true, it will try first
1685 * to use one single xmlrpc call to server method system.multicall, and
1686 * revert to sending many successive calls in case of failure.
1687 * This failure is also stored in $this->no_multicall for subsequent calls.
1688 * Unfortunately, there is no server error code universally used to denote
1689 * the fact that multicall is unsupported, so there is no way to reliably
1690 * distinguish between that and a temporary failure.
1691 * If you are sure that server supports multicall and do not want to
1692 * fallback to using many single calls, set the fourth parameter to FALSE.
1693 *
1694 * NB: trying to shoehorn extra functionality into existing syntax has resulted
1695 * in pretty much convoluted code...
1696 *
1697 * @param array $msgs an array of xmlrpcmsg objects
1698 * @param integer $timeout connection timeout (in seconds)
1699 * @param string $method the http protocol variant to be used
1700 * @param boolean fallback When true, upon receiveing an error during multicall, multiple single calls will be attempted
1701 * @return array
1702 * @access public
1703 */
1704 function multicall($msgs, $timeout=0, $method='', $fallback=true)
1705 {
1706 if ($method == '')
1707 {
1708 $method = $this->method;
1709 }
1710 if(!$this->no_multicall)
1711 {
1712 $results = $this->_try_multicall($msgs, $timeout, $method);
1713 if(is_array($results))
1714 {
1715 // System.multicall succeeded
1716 return $results;
1717 }
1718 else
1719 {
1720 // either system.multicall is unsupported by server,
1721 // or call failed for some other reason.
1722 if ($fallback)
1723 {
1724 // Don't try it next time...
1725 $this->no_multicall = true;
1726 }
1727 else
1728 {
1729 if (is_a($results, 'xmlrpcresp'))
1730 {
1731 $result = $results;
1732 }
1733 else
1734 {
1735 $result = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['multicall_error'], $GLOBALS['xmlrpcstr']['multicall_error']);
1736 }
1737 }
1738 }
1739 }
1740 else
1741 {
1742 // override fallback, in case careless user tries to do two
1743 // opposite things at the same time
1744 $fallback = true;
1745 }
1746
1747 $results = array();
1748 if ($fallback)
1749 {
1750 // system.multicall is (probably) unsupported by server:
1751 // emulate multicall via multiple requests
1752 foreach($msgs as $msg)
1753 {
1754 $results[] =& $this->send($msg, $timeout, $method);
1755 }
1756 }
1757 else
1758 {
1759 // user does NOT want to fallback on many single calls:
1760 // since we should always return an array of responses,
1761 // return an array with the same error repeated n times
1762 foreach($msgs as $msg)
1763 {
1764 $results[] = $result;
1765 }
1766 }
1767 return $results;
1768 }
1769
1770 /**
1771 * Attempt to boxcar $msgs via system.multicall.
1772 * Returns either an array of xmlrpcreponses, an xmlrpc error response
1773 * or false (when received response does not respect valid multicall syntax)
1774 * @access private
1775 */
1776 function _try_multicall($msgs, $timeout, $method)
1777 {
1778 // Construct multicall message
1779 $calls = array();
1780 foreach($msgs as $msg)
1781 {
1782 $call['methodName'] = new xmlrpcval($msg->method(),'string');
1783 $numParams = $msg->getNumParams();
1784 $params = array();
1785 for($i = 0; $i < $numParams; $i++)
1786 {
1787 $params[$i] = $msg->getParam($i);
1788 }
1789 $call['params'] = new xmlrpcval($params, 'array');
1790 $calls[] = new xmlrpcval($call, 'struct');
1791 }
1792 $multicall = new xmlrpcmsg('system.multicall');
1793 $multicall->addParam(new xmlrpcval($calls, 'array'));
1794
1795 // Attempt RPC call
1796 $result =& $this->send($multicall, $timeout, $method);
1797
1798 if($result->faultCode() != 0)
1799 {
1800 // call to system.multicall failed
1801 return $result;
1802 }
1803
1804 // Unpack responses.
1805 $rets = $result->value();
1806
1807 if ($this->return_type == 'xml')
1808 {
1809 return $rets;
1810 }
1811 else if ($this->return_type == 'phpvals')
1812 {
1813 ///@todo test this code branch...
1814 $rets = $result->value();
1815 if(!is_array($rets))
1816 {
1817 return false; // bad return type from system.multicall
1818 }
1819 $numRets = count($rets);
1820 if($numRets != count($msgs))
1821 {
1822 return false; // wrong number of return values.
1823 }
1824
1825 $response = array();
1826 for($i = 0; $i < $numRets; $i++)
1827 {
1828 $val = $rets[$i];
1829 if (!is_array($val)) {
1830 return false;
1831 }
1832 switch(count($val))
1833 {
1834 case 1:
1835 if(!isset($val[0]))
1836 {
1837 return false; // Bad value
1838 }
1839 // Normal return value
1840 $response[$i] = new xmlrpcresp($val[0], 0, '', 'phpvals');
1841 break;
1842 case 2:
1843 /// @todo remove usage of @: it is apparently quite slow
1844 $code = @$val['faultCode'];
1845 if(!is_int($code))
1846 {
1847 return false;
1848 }
1849 $str = @$val['faultString'];
1850 if(!is_string($str))
1851 {
1852 return false;
1853 }
1854 $response[$i] = new xmlrpcresp(0, $code, $str);
1855 break;
1856 default:
1857 return false;
1858 }
1859 }
1860 return $response;
1861 }
1862 else // return type == 'xmlrpcvals'
1863 {
1864 $rets = $result->value();
1865 if($rets->kindOf() != 'array')
1866 {
1867 return false; // bad return type from system.multicall
1868 }
1869 $numRets = $rets->arraysize();
1870 if($numRets != count($msgs))
1871 {
1872 return false; // wrong number of return values.
1873 }
1874
1875 $response = array();
1876 for($i = 0; $i < $numRets; $i++)
1877 {
1878 $val = $rets->arraymem($i);
1879 switch($val->kindOf())
1880 {
1881 case 'array':
1882 if($val->arraysize() != 1)
1883 {
1884 return false; // Bad value
1885 }
1886 // Normal return value
1887 $response[$i] = new xmlrpcresp($val->arraymem(0));
1888 break;
1889 case 'struct':
1890 $code = $val->structmem('faultCode');
1891 if($code->kindOf() != 'scalar' || $code->scalartyp() != 'int')
1892 {
1893 return false;
1894 }
1895 $str = $val->structmem('faultString');
1896 if($str->kindOf() != 'scalar' || $str->scalartyp() != 'string')
1897 {
1898 return false;
1899 }
1900 $response[$i] = new xmlrpcresp(0, $code->scalarval(), $str->scalarval());
1901 break;
1902 default:
1903 return false;
1904 }
1905 }
1906 return $response;
1907 }
1908 }
1909 } // end class xmlrpc_client
1910
1911 class xmlrpcresp
1912 {
1913 var $val = 0;
1914 var $valtyp;
1915 var $errno = 0;
1916 var $errstr = '';
1917 var $payload;
1918 var $hdrs = array();
1919 var $_cookies = array();
1920 var $content_type = 'text/xml';
1921 var $raw_data = '';
1922
1923 /**
1924 * @param mixed $val either an xmlrpcval obj, a php value or the xml serialization of an xmlrpcval (a string)
1925 * @param integer $fcode set it to anything but 0 to create an error response
1926 * @param string $fstr the error string, in case of an error response
1927 * @param string $valtyp either 'xmlrpcvals', 'phpvals' or 'xml'
1928 *
1929 * @todo add check that $val / $fcode / $fstr is of correct type???
1930 * NB: as of now we do not do it, since it might be either an xmlrpcval or a plain
1931 * php val, or a complete xml chunk, depending on usage of xmlrpc_client::send() inside which creator is called...
1932 */
1933 function xmlrpcresp($val, $fcode = 0, $fstr = '', $valtyp='')
1934 {
1935 if($fcode != 0)
1936 {
1937 // error response
1938 $this->errno = $fcode;
1939 $this->errstr = $fstr;
1940 //$this->errstr = htmlspecialchars($fstr); // XXX: encoding probably shouldn't be done here; fix later.
1941 }
1942 else
1943 {
1944 // successful response
1945 $this->val = $val;
1946 if ($valtyp == '')
1947 {
1948 // user did not declare type of response value: try to guess it
1949 if (is_object($this->val) && is_a($this->val, 'xmlrpcval'))
1950 {
1951 $this->valtyp = 'xmlrpcvals';
1952 }
1953 else if (is_string($this->val))
1954 {
1955 $this->valtyp = 'xml';
1956
1957 }
1958 else
1959 {
1960 $this->valtyp = 'phpvals';
1961 }
1962 }
1963 else
1964 {
1965 // user declares type of resp value: believe him
1966 $this->valtyp = $valtyp;
1967 }
1968 }
1969 }
1970
1971 /**
1972 * Returns the error code of the response.
1973 * @return integer the error code of this response (0 for not-error responses)
1974 * @access public
1975 */
1976 function faultCode()
1977 {
1978 return $this->errno;
1979 }
1980
1981 /**
1982 * Returns the error code of the response.
1983 * @return string the error string of this response ('' for not-error responses)
1984 * @access public
1985 */
1986 function faultString()
1987 {
1988 return $this->errstr;
1989 }
1990
1991 /**
1992 * Returns the value received by the server.
1993 * @return mixed the xmlrpcval object returned by the server. Might be an xml string or php value if the response has been created by specially configured xmlrpc_client objects
1994 * @access public
1995 */
1996 function value()
1997 {
1998 return $this->val;
1999 }
2000
2001 /**
2002 * Returns an array with the cookies received from the server.
2003 * Array has the form: $cookiename => array ('value' => $val, $attr1 => $val1, $attr2 = $val2, ...)
2004 * with attributes being e.g. 'expires', 'path', domain'.
2005 * NB: cookies sent as 'expired' by the server (i.e. with an expiry date in the past)
2006 * are still present in the array. It is up to the user-defined code to decide
2007 * how to use the received cookies, and wheter they have to be sent back with the next
2008 * request to the server (using xmlrpc_client::setCookie) or not
2009 * @return array array of cookies received from the server
2010 * @access public
2011 */
2012 function cookies()
2013 {
2014 return $this->_cookies;
2015 }
2016
2017 /**
2018 * Returns xml representation of the response. XML prologue not included
2019 * @param string $charset_encoding the charset to be used for serialization. if null, US-ASCII is assumed
2020 * @return string the xml representation of the response
2021 * @access public
2022 */
2023 function serialize($charset_encoding='')
2024 {
2025 if ($charset_encoding != '')
2026 $this->content_type = 'text/xml; charset=' . $charset_encoding;
2027 else
2028 $this->content_type = 'text/xml';
2029 $result = "<methodResponse>\n";
2030 if($this->errno)
2031 {
2032 // G. Giunta 2005/2/13: let non-ASCII response messages be tolerated by clients
2033 // by xml-encoding non ascii chars
2034 $result .= "<fault>\n" .
2035"<value>\n<struct><member><name>faultCode</name>\n<value><int>" . $this->errno .
2036"</int></value>\n</member>\n<member>\n<name>faultString</name>\n<value><string>" .
2037xmlrpc_encode_entitites($this->errstr, $GLOBALS['xmlrpc_internalencoding'], $charset_encoding) . "</string></value>\n</member>\n" .
2038"</struct>\n</value>\n</fault>";
2039 }
2040 else
2041 {
2042 if(!is_object($this->val) || !is_a($this->val, 'xmlrpcval'))
2043 {
2044 if (is_string($this->val) && $this->valtyp == 'xml')
2045 {
2046 $result .= "<params>\n<param>\n" .
2047 $this->val .
2048 "</param>\n</params>";
2049 }
2050 else
2051 {
2052 /// @todo try to build something serializable?
2053 die('cannot serialize xmlrpcresp objects whose content is native php values');
2054 }
2055 }
2056 else
2057 {
2058 $result .= "<params>\n<param>\n" .
2059 $this->val->serialize($charset_encoding) .
2060 "</param>\n</params>";
2061 }
2062 }
2063 $result .= "\n</methodResponse>";
2064 $this->payload = $result;
2065 return $result;
2066 }
2067 }
2068
2069 class xmlrpcmsg
2070 {
2071 var $payload;
2072 var $methodname;
2073 var $params=array();
2074 var $debug=0;
2075 var $content_type = 'text/xml';
2076
2077 /**
2078 * @param string $meth the name of the method to invoke
2079 * @param array $pars array of parameters to be paased to the method (xmlrpcval objects)
2080 */
2081 function xmlrpcmsg($meth, $pars=0)
2082 {
2083 $this->methodname=$meth;
2084 if(is_array($pars) && count($pars)>0)
2085 {
2086 for($i=0; $i<count($pars); $i++)
2087 {
2088 $this->addParam($pars[$i]);
2089 }
2090 }
2091 }
2092
2093 /**
2094 * @access private
2095 */
2096 function xml_header($charset_encoding='')
2097 {
2098 if ($charset_encoding != '')
2099 {
2100 return "<?xml version=\"1.0\" encoding=\"$charset_encoding\" ?" . ">\n<methodCall>\n";
2101 }
2102 else
2103 {
2104 return "<?xml version=\"1.0\"?" . ">\n<methodCall>\n";
2105 }
2106 }
2107
2108 /**
2109 * @access private
2110 */
2111 function xml_footer()
2112 {
2113 return '</methodCall>';
2114 }
2115
2116 /**
2117 * @access private
2118 */
2119 function kindOf()
2120 {
2121 return 'msg';
2122 }
2123
2124 /**
2125 * @access private
2126 */
2127 function createPayload($charset_encoding='')
2128 {
2129 if ($charset_encoding != '')
2130 $this->content_type = 'text/xml; charset=' . $charset_encoding;
2131 else
2132 $this->content_type = 'text/xml';
2133 $this->payload=$this->xml_header($charset_encoding);
2134 $this->payload.='<methodName>' . $this->methodname . "</methodName>\n";
2135 $this->payload.="<params>\n";
2136 for($i=0; $i<count($this->params); $i++)
2137 {
2138 $p=$this->params[$i];
2139 $this->payload.="<param>\n" . $p->serialize($charset_encoding) .
2140 "</param>\n";
2141 }
2142 $this->payload.="</params>\n";
2143 $this->payload.=$this->xml_footer();
2144 }
2145
2146 /**
2147 * Gets/sets the xmlrpc method to be invoked
2148 * @param string $meth the method to be set (leave empty not to set it)
2149 * @return string the method that will be invoked
2150 * @access public
2151 */
2152 function method($meth='')
2153 {
2154 if($meth!='')
2155 {
2156 $this->methodname=$meth;
2157 }
2158 return $this->methodname;
2159 }
2160
2161 /**
2162 * Returns xml representation of the message. XML prologue included
2163 * @return string the xml representation of the message, xml prologue included
2164 * @access public
2165 */
2166 function serialize($charset_encoding='')
2167 {
2168 $this->createPayload($charset_encoding);
2169 return $this->payload;
2170 }
2171
2172 /**
2173 * Add a parameter to the list of parameters to be used upon method invocation
2174 * @param xmlrpcval $par
2175 * @return boolean false on failure
2176 * @access public
2177 */
2178 function addParam($par)
2179 {
2180 // add check: do not add to self params which are not xmlrpcvals
2181 if(is_object($par) && is_a($par, 'xmlrpcval'))
2182 {
2183 $this->params[]=$par;
2184 return true;
2185 }
2186 else
2187 {
2188 return false;
2189 }
2190 }
2191
2192 /**
2193 * Returns the nth parameter in the message. The index zero-based.
2194 * @param integer $i the index of the parameter to fetch (zero based)
2195 * @return xmlrpcval the i-th parameter
2196 * @access public
2197 */
2198 function getParam($i) { return $this->params[$i]; }
2199
2200 /**
2201 * Returns the number of parameters in the messge.
2202 * @return integer the number of parameters currently set
2203 * @access public
2204 */
2205 function getNumParams() { return count($this->params); }
2206
2207 /**
2208 * Given an open file handle, read all data available and parse it as axmlrpc response.
2209 * NB: the file handle is not closed by this function.
2210 * NNB: might have trouble in rare cases to work on network streams, as we
2211 * check for a read of 0 bytes instead of feof($fp).
2212 * But since checking for feof(null) returns false, we would risk an
2213 * infinite loop in that case, because we cannot trust the caller
2214 * to give us a valid pointer to an open file...
2215 * @access public
2216 * @return xmlrpcresp
2217 * @todo add 2nd & 3rd param to be passed to ParseResponse() ???
2218 */
2219 function &parseResponseFile($fp)
2220 {
2221 $ipd='';
2222 while($data=fread($fp, 32768))
2223 {
2224 $ipd.=$data;
2225 }
2226 //fclose($fp);
2227 $r =& $this->parseResponse($ipd);
2228 return $r;
2229 }
2230
2231 /**
2232 * Parses HTTP headers and separates them from data.
2233 * @access private
2234 */
2235 function &parseResponseHeaders(&$data, $headers_processed=false)
2236 {
2237 // Support "web-proxy-tunelling" connections for https through proxies
2238 if(preg_match('/^HTTP\/1\.[0-1] 200 Connection established/', $data))
2239 {
2240 // Look for CR/LF or simple LF as line separator,
2241 // (even though it is not valid http)
2242 $pos = strpos($data,"\r\n\r\n");
2243 if($pos || is_int($pos))
2244 {
2245 $bd = $pos+4;
2246 }
2247 else
2248 {
2249 $pos = strpos($data,"\n\n");
2250 if($pos || is_int($pos))
2251 {
2252 $bd = $pos+2;
2253 }
2254 else
2255 {
2256 // No separation between response headers and body: fault?
2257 $bd = 0;
2258 }
2259 }
2260 if ($bd)
2261 {
2262 // this filters out all http headers from proxy.
2263 // maybe we could take them into account, too?
2264 $data = substr($data, $bd);
2265 }
2266 else
2267 {
2268 error_log('XML-RPC: xmlrpcmsg::parseResponse: HTTPS via proxy error, tunnel connection possibly failed');
2269 $r= new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['http_error'], $GLOBALS['xmlrpcstr']['http_error']. ' (HTTPS via proxy error, tunnel connection possibly failed)');
2270 return $r;
2271 }
2272 }
2273
2274 // Strip HTTP 1.1 100 Continue header if present
2275 while(preg_match('/^HTTP\/1\.1 1[0-9]{2} /', $data))
2276 {
2277 $pos = strpos($data, 'HTTP', 12);
2278 // server sent a Continue header without any (valid) content following...
2279 // give the client a chance to know it
2280 if(!$pos && !is_int($pos)) // works fine in php 3, 4 and 5
2281 {
2282 break;
2283 }
2284 $data = substr($data, $pos);
2285 }
2286 if(!preg_match('/^HTTP\/[0-9.]+ 200 /', $data))
2287 {
2288 $errstr= substr($data, 0, strpos($data, "\n")-1);
2289 error_log('XML-RPC: xmlrpcmsg::parseResponse: HTTP error, got response: ' .$errstr);
2290 $r= new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['http_error'], $GLOBALS['xmlrpcstr']['http_error']. ' (' . $errstr . ')');
2291 return $r;
2292 }
2293
2294 $GLOBALS['_xh']['headers'] = array();
2295 $GLOBALS['_xh']['cookies'] = array();
2296
2297 // be tolerant to usage of \n instead of \r\n to separate headers and data
2298 // (even though it is not valid http)
2299 $pos = strpos($data,"\r\n\r\n");
2300 if($pos || is_int($pos))
2301 {
2302 $bd = $pos+4;
2303 }
2304 else
2305 {
2306 $pos = strpos($data,"\n\n");
2307 if($pos || is_int($pos))
2308 {
2309 $bd = $pos+2;
2310 }
2311 else
2312 {
2313 // No separation between response headers and body: fault?
2314 // we could take some action here instead of going on...
2315 $bd = 0;
2316 }
2317 }
2318 // be tolerant to line endings, and extra empty lines
2319 $ar = split("\r?\n", trim(substr($data, 0, $pos)));
2320 while(list(,$line) = @each($ar))
2321 {
2322 // take care of multi-line headers and cookies
2323 $arr = explode(':',$line,2);
2324 if(count($arr) > 1)
2325 {
2326 $header_name = strtolower(trim($arr[0]));
2327 /// @todo some other headers (the ones that allow a CSV list of values)
2328 /// do allow many values to be passed using multiple header lines.
2329 /// We should add content to $GLOBALS['_xh']['headers'][$header_name]
2330 /// instead of replacing it for those...
2331 if ($header_name == 'set-cookie' || $header_name == 'set-cookie2')
2332 {
2333 if ($header_name == 'set-cookie2')
2334 {
2335 // version 2 cookies:
2336 // there could be many cookies on one line, comma separated
2337 $cookies = explode(',', $arr[1]);
2338 }
2339 else
2340 {
2341 $cookies = array($arr[1]);
2342 }
2343 foreach ($cookies as $cookie)
2344 {
2345 // glue together all received cookies, using a comma to separate them
2346 // (same as php does with getallheaders())
2347 if (isset($GLOBALS['_xh']['headers'][$header_name]))
2348 $GLOBALS['_xh']['headers'][$header_name] .= ', ' . trim($cookie);
2349 else
2350 $GLOBALS['_xh']['headers'][$header_name] = trim($cookie);
2351 // parse cookie attributes, in case user wants to correctly honour them
2352 // feature creep: only allow rfc-compliant cookie attributes?
2353 // @todo support for server sending multiple time cookie with same name, but using different PATHs
2354 $cookie = explode(';', $cookie);
2355 foreach ($cookie as $pos => $val)
2356 {
2357 $val = explode('=', $val, 2);
2358 $tag = trim($val[0]);
2359 $val = trim(@$val[1]);
2360 /// @todo with version 1 cookies, we should strip leading and trailing " chars
2361 if ($pos == 0)
2362 {
2363 $cookiename = $tag;
2364 $GLOBALS['_xh']['cookies'][$tag] = array();
2365 $GLOBALS['_xh']['cookies'][$cookiename]['value'] = urldecode($val);
2366 }
2367 else
2368 {
2369 if ($tag != 'value')
2370 {
2371 $GLOBALS['_xh']['cookies'][$cookiename][$tag] = $val;
2372 }
2373 }
2374 }
2375 }
2376 }
2377 else
2378 {
2379 $GLOBALS['_xh']['headers'][$header_name] = trim($arr[1]);
2380 }
2381 }
2382 elseif(isset($header_name))
2383 {
2384 /// @todo version1 cookies might span multiple lines, thus breaking the parsing above
2385 $GLOBALS['_xh']['headers'][$header_name] .= ' ' . trim($line);
2386 }
2387 }
2388
2389 $data = substr($data, $bd);
2390
2391 if($this->debug && count($GLOBALS['_xh']['headers']))
2392 {
2393 print '<PRE>';
2394 foreach($GLOBALS['_xh']['headers'] as $header => $value)
2395 {
2396 print htmlentities("HEADER: $header: $value\n");
2397 }
2398 foreach($GLOBALS['_xh']['cookies'] as $header => $value)
2399 {
2400 print htmlentities("COOKIE: $header={$value['value']}\n");
2401 }
2402 print "</PRE>\n";
2403 }
2404
2405 // if CURL was used for the call, http headers have been processed,
2406 // and dechunking + reinflating have been carried out
2407 if(!$headers_processed)
2408 {
2409 // Decode chunked encoding sent by http 1.1 servers
2410 if(isset($GLOBALS['_xh']['headers']['transfer-encoding']) && $GLOBALS['_xh']['headers']['transfer-encoding'] == 'chunked')
2411 {
2412 if(!$data = decode_chunked($data))
2413 {
2414 error_log('XML-RPC: xmlrpcmsg::parseResponse: errors occurred when trying to rebuild the chunked data received from server');
2415 $r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['dechunk_fail'], $GLOBALS['xmlrpcstr']['dechunk_fail']);
2416 return $r;
2417 }
2418 }
2419
2420 // Decode gzip-compressed stuff
2421 // code shamelessly inspired from nusoap library by Dietrich Ayala
2422 if(isset($GLOBALS['_xh']['headers']['content-encoding']))
2423 {
2424 $GLOBALS['_xh']['headers']['content-encoding'] = str_replace('x-', '', $GLOBALS['_xh']['headers']['content-encoding']);
2425 if($GLOBALS['_xh']['headers']['content-encoding'] == 'deflate' || $GLOBALS['_xh']['headers']['content-encoding'] == 'gzip')
2426 {
2427 // if decoding works, use it. else assume data wasn't gzencoded
2428 if(function_exists('gzinflate'))
2429 {
2430 if($GLOBALS['_xh']['headers']['content-encoding'] == 'deflate' && $degzdata = @gzuncompress($data))
2431 {
2432 $data = $degzdata;
2433 if($this->debug)
2434 print "<PRE>---INFLATED RESPONSE---[".strlen($data)." chars]---\n" . htmlentities($data) . "\n---END---</PRE>";
2435 }
2436 elseif($GLOBALS['_xh']['headers']['content-encoding'] == 'gzip' && $degzdata = @gzinflate(substr($data, 10)))
2437 {
2438 $data = $degzdata;
2439 if($this->debug)
2440 print "<PRE>---INFLATED RESPONSE---[".strlen($data)." chars]---\n" . htmlentities($data) . "\n---END---</PRE>";
2441 }
2442 else
2443 {
2444 error_log('XML-RPC: xmlrpcmsg::parseResponse: errors occurred when trying to decode the deflated data received from server');
2445 $r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['decompress_fail'], $GLOBALS['xmlrpcstr']['decompress_fail']);
2446 return $r;
2447 }
2448 }
2449 else
2450 {
2451 error_log('XML-RPC: xmlrpcmsg::parseResponse: the server sent deflated data. Your php install must have the Zlib extension compiled in to support this.');
2452 $r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['cannot_decompress'], $GLOBALS['xmlrpcstr']['cannot_decompress']);
2453 return $r;
2454 }
2455 }
2456 }
2457 } // end of 'if needed, de-chunk, re-inflate response'
2458
2459 // real stupid hack to avoid PHP 4 complaining about returning NULL by ref
2460 $r = null;
2461 $r =& $r;
2462 return $r;
2463 }
2464
2465 /**
2466 * Parse the xmlrpc response contained in the string $data and return an xmlrpcresp object.
2467 * @param string $data the xmlrpc response, eventually including http headers
2468 * @param bool $headers_processed when true prevents parsing HTTP headers for interpretation of content-encoding and consequent decoding
2469 * @param string $return_type decides return type, i.e. content of response->value(). Either 'xmlrpcvals', 'xml' or 'phpvals'
2470 * @return xmlrpcresp
2471 * @access public
2472 */
2473 function &parseResponse($data='', $headers_processed=false, $return_type='xmlrpcvals')
2474 {
2475 if($this->debug)
2476 {
2477 //by maHo, replaced htmlspecialchars with htmlentities
2478 print "<PRE>---GOT---\n" . htmlentities($data) . "\n---END---\n</PRE>";
2479 }
2480
2481 if($data == '')
2482 {
2483 error_log('XML-RPC: xmlrpcmsg::parseResponse: no response received from server.');
2484 $r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['no_data'], $GLOBALS['xmlrpcstr']['no_data']);
2485 return $r;
2486 }
2487
2488 $GLOBALS['_xh']=array();
2489
2490 $raw_data = $data;
2491 // parse the HTTP headers of the response, if present, and separate them from data
2492 if(substr($data, 0, 4) == 'HTTP')
2493 {
2494 $r =& $this->parseResponseHeaders($data, $headers_processed);
2495 if ($r)
2496 {
2497 // failed processing of HTTP response headers
2498 // save into response obj the full payload received, for debugging
2499 $r->raw_data = $data;
2500 return $r;
2501 }
2502 }
2503 else
2504 {
2505 $GLOBALS['_xh']['headers'] = array();
2506 $GLOBALS['_xh']['cookies'] = array();
2507 }
2508
2509 if($this->debug)
2510 {
2511 $start = strpos($data, '<!-- SERVER DEBUG INFO (BASE64 ENCODED):');
2512 if ($start)
2513 {
2514 $start += strlen('<!-- SERVER DEBUG INFO (BASE64 ENCODED):');
2515 $end = strpos($data, '-->', $start);
2516 $comments = substr($data, $start, $end-$start);
2517 print "<PRE>---SERVER DEBUG INFO (DECODED) ---\n\t".htmlentities(str_replace("\n", "\n\t", base64_decode($comments)))."\n---END---\n</PRE>";
2518 }
2519 }
2520
2521 // be tolerant of extra whitespace in response body
2522 $data = trim($data);
2523
2524 /// @todo return an error msg if $data=='' ?
2525
2526 // be tolerant of junk after methodResponse (e.g. javascript ads automatically inserted by free hosts)
2527 // idea from Luca Mariano <luca.mariano@email.it> originally in PEARified version of the lib
2528 $bd = false;
2529 // Poor man's version of strrpos for php 4...
2530 $pos = strpos($data, '</methodResponse>');
2531 while($pos || is_int($pos))
2532 {
2533 $bd = $pos+17;
2534 $pos = strpos($data, '</methodResponse>', $bd);
2535 }
2536 if($bd)
2537 {
2538 $data = substr($data, 0, $bd);
2539 }
2540
2541 // if user wants back raw xml, give it to him
2542 if ($return_type == 'xml')
2543 {
2544 $r = new xmlrpcresp($data, 0, '', 'xml');
2545 $r->hdrs = $GLOBALS['_xh']['headers'];
2546 $r->_cookies = $GLOBALS['_xh']['cookies'];
2547 $r->raw_data = $raw_data;
2548 return $r;
2549 }
2550
2551 // try to 'guestimate' the character encoding of the received response
2552 $resp_encoding = guess_encoding(@$GLOBALS['_xh']['headers']['content-type'], $data);
2553
2554 $GLOBALS['_xh']['ac']='';
2555 //$GLOBALS['_xh']['qt']=''; //unused...
2556 $GLOBALS['_xh']['stack'] = array();
2557 $GLOBALS['_xh']['valuestack'] = array();
2558 $GLOBALS['_xh']['isf']=0; // 0 = OK, 1 for xmlrpc fault responses, 2 = invalid xmlrpc
2559 $GLOBALS['_xh']['isf_reason']='';
2560 $GLOBALS['_xh']['rt']=''; // 'methodcall or 'methodresponse'
2561
2562 // if response charset encoding is not known / supported, try to use
2563 // the default encoding and parse the xml anyway, but log a warning...
2564 if (!in_array($resp_encoding, array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
2565 // the following code might be better for mb_string enabled installs, but
2566 // makes the lib about 200% slower...
2567 //if (!is_valid_charset($resp_encoding, array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
2568 {
2569 error_log('XML-RPC: xmlrpcmsg::parseResponse: invalid charset encoding of received response: '.$resp_encoding);
2570 $resp_encoding = $GLOBALS['xmlrpc_defencoding'];
2571 }
2572 $parser = xml_parser_create($resp_encoding);
2573 xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
2574 // G. Giunta 2005/02/13: PHP internally uses ISO-8859-1, so we have to tell
2575 // the xml parser to give us back data in the expected charset.
2576 // What if internal encoding is not in one of the 3 allowed?
2577 // we use the broadest one, ie. utf8
2578 // This allows to send data which is native in various charset,
2579 // by extending xmlrpc_encode_entitites() and setting xmlrpc_internalencoding
2580 if (!in_array($GLOBALS['xmlrpc_internalencoding'], array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
2581 {
2582 xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, 'UTF-8');
2583 }
2584 else
2585 {
2586 xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, $GLOBALS['xmlrpc_internalencoding']);
2587 }
2588
2589 if ($return_type == 'phpvals')
2590 {
2591 xml_set_element_handler($parser, 'xmlrpc_se', 'xmlrpc_ee_fast');
2592 }
2593 else
2594 {
2595 xml_set_element_handler($parser, 'xmlrpc_se', 'xmlrpc_ee');
2596 }
2597
2598 xml_set_character_data_handler($parser, 'xmlrpc_cd');
2599 xml_set_default_handler($parser, 'xmlrpc_dh');
2600
2601 // first error check: xml not well formed
2602 if(!xml_parse($parser, $data, count($data)))
2603 {
2604 // thanks to Peter Kocks <peter.kocks@baygate.com>
2605 if((xml_get_current_line_number($parser)) == 1)
2606 {
2607 $errstr = 'XML error at line 1, check URL';
2608 }
2609 else
2610 {
2611 $errstr = sprintf('XML error: %s at line %d, column %d',
2612 xml_error_string(xml_get_error_code($parser)),
2613 xml_get_current_line_number($parser), xml_get_current_column_number($parser));
2614 }
2615 error_log($errstr);
2616 $r= new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['invalid_return'], $GLOBALS['xmlrpcstr']['invalid_return'].' ('.$errstr.')');
2617 xml_parser_free($parser);
2618 if($this->debug)
2619 {
2620 print $errstr;
2621 }
2622 $r->hdrs = $GLOBALS['_xh']['headers'];
2623 $r->_cookies = $GLOBALS['_xh']['cookies'];
2624 $r->raw_data = $raw_data;
2625 return $r;
2626 }
2627 xml_parser_free($parser);
2628 // second error check: xml well formed but not xml-rpc compliant
2629 if ($GLOBALS['_xh']['isf'] > 1)
2630 {
2631 if ($this->debug)
2632 {
2633 /// @todo echo something for user?
2634 }
2635
2636 $r = new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['invalid_return'],
2637 $GLOBALS['xmlrpcstr']['invalid_return'] . ' ' . $GLOBALS['_xh']['isf_reason']);
2638 }
2639 // third error check: parsing of the response has somehow gone boink.
2640 // NB: shall we omit this check, since we trust the parsing code?
2641 elseif ($return_type == 'xmlrpcvals' && !is_object($GLOBALS['_xh']['value']))
2642 {
2643 // something odd has happened
2644 // and it's time to generate a client side error
2645 // indicating something odd went on
2646 $r= new xmlrpcresp(0, $GLOBALS['xmlrpcerr']['invalid_return'],
2647 $GLOBALS['xmlrpcstr']['invalid_return']);
2648 }
2649 else
2650 {
2651 if ($this->debug)
2652 {
2653 print "<PRE>---PARSED---\n";
2654 // somehow htmlentities chokes on var_export, and some full html string...
2655 //print htmlentitites(var_export($GLOBALS['_xh']['value'], true));
2656 print htmlspecialchars(var_export($GLOBALS['_xh']['value'], true));
2657 print "\n---END---</PRE>";
2658 }
2659
2660 // note that using =& will raise an error if $GLOBALS['_xh']['st'] does not generate an object.
2661 $v =& $GLOBALS['_xh']['value'];
2662
2663 if($GLOBALS['_xh']['isf'])
2664 {
2665 /// @todo we should test here if server sent an int and a string,
2666 /// and/or coerce them into such...
2667 if ($return_type == 'xmlrpcvals')
2668 {
2669 $errno_v = $v->structmem('faultCode');
2670 $errstr_v = $v->structmem('faultString');
2671 $errno = $errno_v->scalarval();
2672 $errstr = $errstr_v->scalarval();
2673 }
2674 else
2675 {
2676 $errno = $v['faultCode'];
2677 $errstr = $v['faultString'];
2678 }
2679
2680 if($errno == 0)
2681 {
2682 // FAULT returned, errno needs to reflect that
2683 $errno = -1;
2684 }
2685
2686 $r = new xmlrpcresp(0, $errno, $errstr);
2687 }
2688 else
2689 {
2690 $r= new xmlrpcresp($v, 0, '', $return_type);
2691 }
2692 }
2693
2694 $r->hdrs = $GLOBALS['_xh']['headers'];
2695 $r->_cookies = $GLOBALS['_xh']['cookies'];
2696 $r->raw_data = $raw_data;
2697 return $r;
2698 }
2699 }
2700
2701 class xmlrpcval
2702 {
2703 var $me=array();
2704 var $mytype=0;
2705 var $_php_class=null;
2706
2707 /**
2708 * @param mixed $val
2709 * @param string $type any valid xmlrpc type name (lowercase). If null, 'string' is assumed
2710 */
2711 function xmlrpcval($val=-1, $type='')
2712 {
2713 /// @todo: optimization creep - do not call addXX, do it all inline.
2714 /// downside: booleans will not be coerced anymore
2715 if($val!==-1 || $type!='')
2716 {
2717 // optimization creep: inlined all work done by constructor
2718 switch($type)
2719 {
2720 case '':
2721 $this->mytype=1;
2722 $this->me['string']=$val;
2723 break;
2724 case 'i4':
2725 case 'int':
2726 case 'double':
2727 case 'string':
2728 case 'boolean':
2729 case 'dateTime.iso8601':
2730 case 'base64':
2731 case 'null':
2732 $this->mytype=1;
2733 $this->me[$type]=$val;
2734 break;
2735 case 'array':
2736 $this->mytype=2;
2737 $this->me['array']=$val;
2738 break;
2739 case 'struct':
2740 $this->mytype=3;
2741 $this->me['struct']=$val;
2742 break;
2743 default:
2744 error_log("XML-RPC: xmlrpcval::xmlrpcval: not a known type ($type)");
2745 }
2746 /*if($type=='')
2747 {
2748 $type='string';
2749 }
2750 if($GLOBALS['xmlrpcTypes'][$type]==1)
2751 {
2752 $this->addScalar($val,$type);
2753 }
2754 elseif($GLOBALS['xmlrpcTypes'][$type]==2)
2755 {
2756 $this->addArray($val);
2757 }
2758 elseif($GLOBALS['xmlrpcTypes'][$type]==3)
2759 {
2760 $this->addStruct($val);
2761 }*/
2762 }
2763 }
2764
2765 /**
2766 * Add a single php value to an (unitialized) xmlrpcval
2767 * @param mixed $val
2768 * @param string $type
2769 * @return int 1 or 0 on failure
2770 */
2771 function addScalar($val, $type='string')
2772 {
2773 $typeof=@$GLOBALS['xmlrpcTypes'][$type];
2774 if($typeof!=1)
2775 {
2776 error_log("XML-RPC: xmlrpcval::addScalar: not a scalar type ($type)");
2777 return 0;
2778 }
2779
2780 // coerce booleans into correct values
2781 // NB: we should iether do it for datetimes, integers and doubles, too,
2782 // or just plain remove this check, implemnted on booleans only...
2783 if($type==$GLOBALS['xmlrpcBoolean'])
2784 {
2785 if(strcasecmp($val,'true')==0 || $val==1 || ($val==true && strcasecmp($val,'false')))
2786 {
2787 $val=true;
2788 }
2789 else
2790 {
2791 $val=false;
2792 }
2793 }
2794
2795 switch($this->mytype)
2796 {
2797 case 1:
2798 error_log('XML-RPC: xmlrpcval::addScalar: scalar xmlrpcval can have only one value');
2799 return 0;
2800 case 3:
2801 error_log('XML-RPC: xmlrpcval::addScalar: cannot add anonymous scalar to struct xmlrpcval');
2802 return 0;
2803 case 2:
2804 // we're adding a scalar value to an array here
2805 //$ar=$this->me['array'];
2806 //$ar[]= new xmlrpcval($val, $type);
2807 //$this->me['array']=$ar;
2808 // Faster (?) avoid all the costly array-copy-by-val done here...
2809 $this->me['array'][]= new xmlrpcval($val, $type);
2810 return 1;
2811 default:
2812 // a scalar, so set the value and remember we're scalar
2813 $this->me[$type]=$val;
2814 $this->mytype=$typeof;
2815 return 1;
2816 }
2817 }
2818
2819 /**
2820 * Add an array of xmlrpcval objects to an xmlrpcval
2821 * @param array $vals
2822 * @return int 1 or 0 on failure
2823 * @access public
2824 *
2825 * @todo add some checking for $vals to be an array of xmlrpcvals?
2826 */
2827 function addArray($vals)
2828 {
2829 if($this->mytype==0)
2830 {
2831 $this->mytype=$GLOBALS['xmlrpcTypes']['array'];
2832 $this->me['array']=$vals;
2833 return 1;
2834 }
2835 elseif($this->mytype==2)
2836 {
2837 // we're adding to an array here
2838 $this->me['array'] = array_merge($this->me['array'], $vals);
2839 return 1;
2840 }
2841 else
2842 {
2843 error_log('XML-RPC: xmlrpcval::addArray: already initialized as a [' . $this->kindOf() . ']');
2844 return 0;
2845 }
2846 }
2847
2848 /**
2849 * Add an array of named xmlrpcval objects to an xmlrpcval
2850 * @param array $vals
2851 * @return int 1 or 0 on failure
2852 * @access public
2853 *
2854 * @todo add some checking for $vals to be an array?
2855 */
2856 function addStruct($vals)
2857 {
2858 if($this->mytype==0)
2859 {
2860 $this->mytype=$GLOBALS['xmlrpcTypes']['struct'];
2861 $this->me['struct']=$vals;
2862 return 1;
2863 }
2864 elseif($this->mytype==3)
2865 {
2866 // we're adding to a struct here
2867 $this->me['struct'] = array_merge($this->me['struct'], $vals);
2868 return 1;
2869 }
2870 else
2871 {
2872 error_log('XML-RPC: xmlrpcval::addStruct: already initialized as a [' . $this->kindOf() . ']');
2873 return 0;
2874 }
2875 }
2876
2877 // poor man's version of print_r ???
2878 // DEPRECATED!
2879 function dump($ar)
2880 {
2881 foreach($ar as $key => $val)
2882 {
2883 echo "$key => $val<br />";
2884 if($key == 'array')
2885 {
2886 while(list($key2, $val2) = each($val))
2887 {
2888 echo "-- $key2 => $val2<br />";
2889 }
2890 }
2891 }
2892 }
2893
2894 /**
2895 * Returns a string containing "struct", "array" or "scalar" describing the base type of the value
2896 * @return string
2897 * @access public
2898 */
2899 function kindOf()
2900 {
2901 switch($this->mytype)
2902 {
2903 case 3:
2904 return 'struct';
2905 break;
2906 case 2:
2907 return 'array';
2908 break;
2909 case 1:
2910 return 'scalar';
2911 break;
2912 default:
2913 return 'undef';
2914 }
2915 }
2916
2917 /**
2918 * @access private
2919 */
2920 function serializedata($typ, $val, $charset_encoding='')
2921 {
2922 $rs='';
2923 switch(@$GLOBALS['xmlrpcTypes'][$typ])
2924 {
2925 case 1:
2926 switch($typ)
2927 {
2928 case $GLOBALS['xmlrpcBase64']:
2929 $rs.="<${typ}>" . base64_encode($val) . "</${typ}>";
2930 break;
2931 case $GLOBALS['xmlrpcBoolean']:
2932 $rs.="<${typ}>" . ($val ? '1' : '0') . "</${typ}>";
2933 break;
2934 case $GLOBALS['xmlrpcString']:
2935 // G. Giunta 2005/2/13: do NOT use htmlentities, since
2936 // it will produce named html entities, which are invalid xml
2937 $rs.="<${typ}>" . xmlrpc_encode_entitites($val, $GLOBALS['xmlrpc_internalencoding'], $charset_encoding). "</${typ}>";
2938 break;
2939 case $GLOBALS['xmlrpcInt']:
2940 case $GLOBALS['xmlrpcI4']:
2941 $rs.="<${typ}>".(int)$val."</${typ}>";
2942 break;
2943 case $GLOBALS['xmlrpcDouble']:
2944 // avoid using standard conversion of float to string because it is locale-dependent,
2945 // and also because the xmlrpc spec forbids exponential notation
2946 // sprintf('%F') would be most likely ok but it is only available since PHP 4.3.10 and PHP 5.0.3.
2947 // The code below tries its best at keeping max precision while avoiding exp notation,
2948 // but there is of course no limit in the number of decimal places to be used...
2949 $rs.="<${typ}>".preg_replace('/\\.?0+$/','',number_format((double)$val, 128, '.', ''))."</${typ}>";
2950 break;
2951 case $GLOBALS['xmlrpcNull']:
2952 $rs.="<nil/>";
2953 break;
2954 default:
2955 // no standard type value should arrive here, but provide a possibility
2956 // for xmlrpcvals of unknown type...
2957 $rs.="<${typ}>${val}</${typ}>";
2958 }
2959 break;
2960 case 3:
2961 // struct
2962 if ($this->_php_class)
2963 {
2964 $rs.='<struct php_class="' . $this->_php_class . "\">\n";
2965 }
2966 else
2967 {
2968 $rs.="<struct>\n";
2969 }
2970 foreach($val as $key2 => $val2)
2971 {
2972 $rs.='<member><name>'.xmlrpc_encode_entitites($key2, $GLOBALS['xmlrpc_internalencoding'], $charset_encoding)."</name>\n";
2973 //$rs.=$this->serializeval($val2);
2974 $rs.=$val2->serialize($charset_encoding);
2975 $rs.="</member>\n";
2976 }
2977 $rs.='</struct>';
2978 break;
2979 case 2:
2980 // array
2981 $rs.="<array>\n<data>\n";
2982 for($i=0; $i<count($val); $i++)
2983 {
2984 //$rs.=$this->serializeval($val[$i]);
2985 $rs.=$val[$i]->serialize($charset_encoding);
2986 }
2987 $rs.="</data>\n</array>";
2988 break;
2989 default:
2990 break;
2991 }
2992 return $rs;
2993 }
2994
2995 /**
2996 * Returns xml representation of the value. XML prologue not included
2997 * @param string $charset_encoding the charset to be used for serialization. if null, US-ASCII is assumed
2998 * @return string
2999 * @access public
3000 */
3001 function serialize($charset_encoding='')
3002 {
3003 // add check? slower, but helps to avoid recursion in serializing broken xmlrpcvals...
3004 //if (is_object($o) && (get_class($o) == 'xmlrpcval' || is_subclass_of($o, 'xmlrpcval')))
3005 //{
3006 reset($this->me);
3007 list($typ, $val) = each($this->me);
3008 return '<value>' . $this->serializedata($typ, $val, $charset_encoding) . "</value>\n";
3009 //}
3010 }
3011
3012 // DEPRECATED
3013 function serializeval($o)
3014 {
3015 // add check? slower, but helps to avoid recursion in serializing broken xmlrpcvals...
3016 //if (is_object($o) && (get_class($o) == 'xmlrpcval' || is_subclass_of($o, 'xmlrpcval')))
3017 //{
3018 $ar=$o->me;
3019 reset($ar);
3020 list($typ, $val) = each($ar);
3021 return '<value>' . $this->serializedata($typ, $val) . "</value>\n";
3022 //}
3023 }
3024
3025 /**
3026 * Checks wheter a struct member with a given name is present.
3027 * Works only on xmlrpcvals of type struct.
3028 * @param string $m the name of the struct member to be looked up
3029 * @return boolean
3030 * @access public
3031 */
3032 function structmemexists($m)
3033 {
3034 return array_key_exists($m, $this->me['struct']);
3035 }
3036
3037 /**
3038 * Returns the value of a given struct member (an xmlrpcval object in itself).
3039 * Will raise a php warning if struct member of given name does not exist
3040 * @param string $m the name of the struct member to be looked up
3041 * @return xmlrpcval
3042 * @access public
3043 */
3044 function structmem($m)
3045 {
3046 return $this->me['struct'][$m];
3047 }
3048
3049 /**
3050 * Reset internal pointer for xmlrpcvals of type struct.
3051 * @access public
3052 */
3053 function structreset()
3054 {
3055 reset($this->me['struct']);
3056 }
3057
3058 /**
3059 * Return next member element for xmlrpcvals of type struct.
3060 * @return xmlrpcval
3061 * @access public
3062 */
3063 function structeach()
3064 {
3065 return each($this->me['struct']);
3066 }
3067
3068 // DEPRECATED! this code looks like it is very fragile and has not been fixed
3069 // for a long long time. Shall we remove it for 2.0?
3070 function getval()
3071 {
3072 // UNSTABLE
3073 reset($this->me);
3074 list($a,$b)=each($this->me);
3075 // contributed by I Sofer, 2001-03-24
3076 // add support for nested arrays to scalarval
3077 // i've created a new method here, so as to
3078 // preserve back compatibility
3079
3080 if(is_array($b))
3081 {
3082 @reset($b);
3083 while(list($id,$cont) = @each($b))
3084 {
3085 $b[$id] = $cont->scalarval();
3086 }
3087 }
3088
3089 // add support for structures directly encoding php objects
3090 if(is_object($b))
3091 {
3092 $t = get_object_vars($b);
3093 @reset($t);
3094 while(list($id,$cont) = @each($t))
3095 {
3096 $t[$id] = $cont->scalarval();
3097 }
3098 @reset($t);
3099 while(list($id,$cont) = @each($t))
3100 {
3101 @$b->$id = $cont;
3102 }
3103 }
3104 // end contrib
3105 return $b;
3106 }
3107
3108 /**
3109 * Returns the value of a scalar xmlrpcval
3110 * @return mixed
3111 * @access public
3112 */
3113 function scalarval()
3114 {
3115 reset($this->me);
3116 list(,$b)=each($this->me);
3117 return $b;
3118 }
3119
3120 /**
3121 * Returns the type of the xmlrpcval.
3122 * For integers, 'int' is always returned in place of 'i4'
3123 * @return string
3124 * @access public
3125 */
3126 function scalartyp()
3127 {
3128 reset($this->me);
3129 list($a,)=each($this->me);
3130 if($a==$GLOBALS['xmlrpcI4'])
3131 {
3132 $a=$GLOBALS['xmlrpcInt'];
3133 }
3134 return $a;
3135 }
3136
3137 /**
3138 * Returns the m-th member of an xmlrpcval of struct type
3139 * @param integer $m the index of the value to be retrieved (zero based)
3140 * @return xmlrpcval
3141 * @access public
3142 */
3143 function arraymem($m)
3144 {
3145 return $this->me['array'][$m];
3146 }
3147
3148 /**
3149 * Returns the number of members in an xmlrpcval of array type
3150 * @return integer
3151 * @access public
3152 */
3153 function arraysize()
3154 {
3155 return count($this->me['array']);
3156 }
3157
3158 /**
3159 * Returns the number of members in an xmlrpcval of struct type
3160 * @return integer
3161 * @access public
3162 */
3163 function structsize()
3164 {
3165 return count($this->me['struct']);
3166 }
3167 }
3168
3169
3170 // date helpers
3171
3172 /**
3173 * Given a timestamp, return the corresponding ISO8601 encoded string.
3174 *
3175 * Really, timezones ought to be supported
3176 * but the XML-RPC spec says:
3177 *
3178 * "Don't assume a timezone. It should be specified by the server in its
3179 * documentation what assumptions it makes about timezones."
3180 *
3181 * These routines always assume localtime unless
3182 * $utc is set to 1, in which case UTC is assumed
3183 * and an adjustment for locale is made when encoding
3184 *
3185 * @param int $timet (timestamp)
3186 * @param int $utc (0 or 1)
3187 * @return string
3188 */
3189 function iso8601_encode($timet, $utc=0)
3190 {
3191 if(!$utc)
3192 {
3193 $t=strftime("%Y%m%dT%H:%M:%S", $timet);
3194 }
3195 else
3196 {
3197 if(function_exists('gmstrftime'))
3198 {
3199 // gmstrftime doesn't exist in some versions
3200 // of PHP
3201 $t=gmstrftime("%Y%m%dT%H:%M:%S", $timet);
3202 }
3203 else
3204 {
3205 $t=strftime("%Y%m%dT%H:%M:%S", $timet-date('Z'));
3206 }
3207 }
3208 return $t;
3209 }
3210
3211 /**
3212 * Given an ISO8601 date string, return a timet in the localtime, or UTC
3213 * @param string $idate
3214 * @param int $utc either 0 or 1
3215 * @return int (datetime)
3216 */
3217 function iso8601_decode($idate, $utc=0)
3218 {
3219 $t=0;
3220 if(preg_match('/([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})/', $idate, $regs))
3221 {
3222 if($utc)
3223 {
3224 $t=gmmktime($regs[4], $regs[5], $regs[6], $regs[2], $regs[3], $regs[1]);
3225 }
3226 else
3227 {
3228 $t=mktime($regs[4], $regs[5], $regs[6], $regs[2], $regs[3], $regs[1]);
3229 }
3230 }
3231 return $t;
3232 }
3233
3234 /**
3235 * Takes an xmlrpc value in PHP xmlrpcval object format and translates it into native PHP types.
3236 *
3237 * Works with xmlrpc message objects as input, too.
3238 *
3239 * Given proper options parameter, can rebuild generic php object instances
3240 * (provided those have been encoded to xmlrpc format using a corresponding
3241 * option in php_xmlrpc_encode())
3242 * PLEASE NOTE that rebuilding php objects involves calling their constructor function.
3243 * This means that the remote communication end can decide which php code will
3244 * get executed on your server, leaving the door possibly open to 'php-injection'
3245 * style of attacks (provided you have some classes defined on your server that
3246 * might wreak havoc if instances are built outside an appropriate context).
3247 * Make sure you trust the remote server/client before eanbling this!
3248 *
3249 * @author Dan Libby (dan@libby.com)
3250 *
3251 * @param xmlrpcval $xmlrpc_val
3252 * @param array $options if 'decode_php_objs' is set in the options array, xmlrpc structs can be decoded into php objects
3253 * @return mixed
3254 */
3255 function php_xmlrpc_decode($xmlrpc_val, $options=array())
3256 {
3257 switch($xmlrpc_val->kindOf())
3258 {
3259 case 'scalar':
3260 if (in_array('extension_api', $options))
3261 {
3262 reset($xmlrpc_val->me);
3263 list($typ,$val) = each($xmlrpc_val->me);
3264 switch ($typ)
3265 {
3266 case 'dateTime.iso8601':
3267 $xmlrpc_val->scalar = $val;
3268 $xmlrpc_val->xmlrpc_type = 'datetime';
3269 $xmlrpc_val->timestamp = iso8601_decode($val);
3270 return $xmlrpc_val;
3271 case 'base64':
3272 $xmlrpc_val->scalar = $val;
3273 $xmlrpc_val->type = $typ;
3274 return $xmlrpc_val;
3275 default:
3276 return $xmlrpc_val->scalarval();
3277 }
3278 }
3279 return $xmlrpc_val->scalarval();
3280 case 'array':
3281 $size = $xmlrpc_val->arraysize();
3282 $arr = array();
3283 for($i = 0; $i < $size; $i++)
3284 {
3285 $arr[] = php_xmlrpc_decode($xmlrpc_val->arraymem($i), $options);
3286 }
3287 return $arr;
3288 case 'struct':
3289 $xmlrpc_val->structreset();
3290 // If user said so, try to rebuild php objects for specific struct vals.
3291 /// @todo should we raise a warning for class not found?
3292 // shall we check for proper subclass of xmlrpcval instead of
3293 // presence of _php_class to detect what we can do?
3294 if (in_array('decode_php_objs', $options) && $xmlrpc_val->_php_class != ''
3295 && class_exists($xmlrpc_val->_php_class))
3296 {
3297 $obj = @new $xmlrpc_val->_php_class;
3298 while(list($key,$value)=$xmlrpc_val->structeach())
3299 {
3300 $obj->$key = php_xmlrpc_decode($value, $options);
3301 }
3302 return $obj;
3303 }
3304 else
3305 {
3306 $arr = array();
3307 while(list($key,$value)=$xmlrpc_val->structeach())
3308 {
3309 $arr[$key] = php_xmlrpc_decode($value, $options);
3310 }
3311 return $arr;
3312 }
3313 case 'msg':
3314 $paramcount = $xmlrpc_val->getNumParams();
3315 $arr = array();
3316 for($i = 0; $i < $paramcount; $i++)
3317 {
3318 $arr[] = php_xmlrpc_decode($xmlrpc_val->getParam($i));
3319 }
3320 return $arr;
3321 }
3322 }
3323
3324 // This constant left here only for historical reasons...
3325 // it was used to decide if we have to define xmlrpc_encode on our own, but
3326 // we do not do it anymore
3327 if(function_exists('xmlrpc_decode'))
3328 {
3329 define('XMLRPC_EPI_ENABLED','1');
3330 }
3331 else
3332 {
3333 define('XMLRPC_EPI_ENABLED','0');
3334 }
3335
3336 /**
3337 * Takes native php types and encodes them into xmlrpc PHP object format.
3338 * It will not re-encode xmlrpcval objects.
3339 *
3340 * Feature creep -- could support more types via optional type argument
3341 * (string => datetime support has been added, ??? => base64 not yet)
3342 *
3343 * If given a proper options parameter, php object instances will be encoded
3344 * into 'special' xmlrpc values, that can later be decoded into php objects
3345 * by calling php_xmlrpc_decode() with a corresponding option
3346 *
3347 * @author Dan Libby (dan@libby.com)
3348 *
3349 * @param mixed $php_val the value to be converted into an xmlrpcval object
3350 * @param array $options can include 'encode_php_objs', 'auto_dates', 'null_extension' or 'extension_api'
3351 * @return xmlrpcval
3352 */
3353 function &php_xmlrpc_encode($php_val, $options=array())
3354 {
3355 $type = gettype($php_val);
3356 switch($type)
3357 {
3358 case 'string':
3359 if (in_array('auto_dates', $options) && preg_match('/^[0-9]{8}T[0-9]{2}:[0-9]{2}:[0-9]{2}$/', $php_val))
3360 $xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcDateTime']);
3361 else
3362 $xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcString']);
3363 break;
3364 case 'integer':
3365 $xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcInt']);
3366 break;
3367 case 'double':
3368 $xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcDouble']);
3369 break;
3370 // <G_Giunta_2001-02-29>
3371 // Add support for encoding/decoding of booleans, since they are supported in PHP
3372 case 'boolean':
3373 $xmlrpc_val = new xmlrpcval($php_val, $GLOBALS['xmlrpcBoolean']);
3374 break;
3375 // </G_Giunta_2001-02-29>
3376 case 'array':
3377 // PHP arrays can be encoded to either xmlrpc structs or arrays,
3378 // depending on wheter they are hashes or plain 0..n integer indexed
3379 // A shorter one-liner would be
3380 // $tmp = array_diff(array_keys($php_val), range(0, count($php_val)-1));
3381 // but execution time skyrockets!
3382 $j = 0;
3383 $arr = array();
3384 $ko = false;
3385 foreach($php_val as $key => $val)
3386 {
3387 $arr[$key] =& php_xmlrpc_encode($val, $options);
3388 if(!$ko && $key !== $j)
3389 {
3390 $ko = true;
3391 }
3392 $j++;
3393 }
3394 if($ko)
3395 {
3396 $xmlrpc_val = new xmlrpcval($arr, $GLOBALS['xmlrpcStruct']);
3397 }
3398 else
3399 {
3400 $xmlrpc_val = new xmlrpcval($arr, $GLOBALS['xmlrpcArray']);
3401 }
3402 break;
3403 case 'object':
3404 if(is_a($php_val, 'xmlrpcval'))
3405 {
3406 $xmlrpc_val = $php_val;
3407 }
3408 else
3409 {
3410 $arr = array();
3411 while(list($k,$v) = each($php_val))
3412 {
3413 $arr[$k] = php_xmlrpc_encode($v, $options);
3414 }
3415 $xmlrpc_val = new xmlrpcval($arr, $GLOBALS['xmlrpcStruct']);
3416 if (in_array('encode_php_objs', $options))
3417 {
3418 // let's save original class name into xmlrpcval:
3419 // might be useful later on...
3420 $xmlrpc_val->_php_class = get_class($php_val);
3421 }
3422 }
3423 break;
3424 case 'NULL':
3425 if (in_array('extension_api', $options))
3426 {
3427 $xmlrpc_val = new xmlrpcval('', $GLOBALS['xmlrpcString']);
3428 }
3429 if (in_array('null_extension', $options))
3430 {
3431 $xmlrpc_val = new xmlrpcval('', $GLOBALS['xmlrpcNull']);
3432 }
3433 else
3434 {
3435 $xmlrpc_val = new xmlrpcval();
3436 }
3437 break;
3438 case 'resource':
3439 if (in_array('extension_api', $options))
3440 {
3441 $xmlrpc_val = new xmlrpcval((int)$php_val, $GLOBALS['xmlrpcInt']);
3442 }
3443 else
3444 {
3445 $xmlrpc_val = new xmlrpcval();
3446 }
3447 // catch "user function", "unknown type"
3448 default:
3449 // giancarlo pinerolo <ping@alt.it>
3450 // it has to return
3451 // an empty object in case, not a boolean.
3452 $xmlrpc_val = new xmlrpcval();
3453 break;
3454 }
3455 return $xmlrpc_val;
3456 }
3457
3458 /**
3459 * Convert the xml representation of a method response, method request or single
3460 * xmlrpc value into the appropriate object (a.k.a. deserialize)
3461 * @param string $xml_val
3462 * @param array $options
3463 * @return mixed false on error, or an instance of either xmlrpcval, xmlrpcmsg or xmlrpcresp
3464 */
3465 function php_xmlrpc_decode_xml($xml_val, $options=array())
3466 {
3467 $GLOBALS['_xh'] = array();
3468 $GLOBALS['_xh']['ac'] = '';
3469 $GLOBALS['_xh']['stack'] = array();
3470 $GLOBALS['_xh']['valuestack'] = array();
3471 $GLOBALS['_xh']['params'] = array();
3472 $GLOBALS['_xh']['pt'] = array();
3473 $GLOBALS['_xh']['isf'] = 0;
3474 $GLOBALS['_xh']['isf_reason'] = '';
3475 $GLOBALS['_xh']['method'] = false;
3476 $GLOBALS['_xh']['rt'] = '';
3477 /// @todo 'guestimate' encoding
3478 $parser = xml_parser_create();
3479 xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
3480 // What if internal encoding is not in one of the 3 allowed?
3481 // we use the broadest one, ie. utf8!
3482 if (!in_array($GLOBALS['xmlrpc_internalencoding'], array('UTF-8', 'ISO-8859-1', 'US-ASCII')))
3483 {
3484 xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, 'UTF-8');
3485 }
3486 else
3487 {
3488 xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, $GLOBALS['xmlrpc_internalencoding']);
3489 }
3490 xml_set_element_handler($parser, 'xmlrpc_se_any', 'xmlrpc_ee');
3491 xml_set_character_data_handler($parser, 'xmlrpc_cd');
3492 xml_set_default_handler($parser, 'xmlrpc_dh');
3493 if(!xml_parse($parser, $xml_val, 1))
3494 {
3495 $errstr = sprintf('XML error: %s at line %d, column %d',
3496 xml_error_string(xml_get_error_code($parser)),
3497 xml_get_current_line_number($parser), xml_get_current_column_number($parser));
3498 error_log($errstr);
3499 xml_parser_free($parser);
3500 return false;
3501 }
3502 xml_parser_free($parser);
3503 if ($GLOBALS['_xh']['isf'] > 1) // test that $GLOBALS['_xh']['value'] is an obj, too???
3504 {
3505 error_log($GLOBALS['_xh']['isf_reason']);
3506 return false;
3507 }
3508 switch ($GLOBALS['_xh']['rt'])
3509 {
3510 case 'methodresponse':
3511 $v =& $GLOBALS['_xh']['value'];
3512 if ($GLOBALS['_xh']['isf'] == 1)
3513 {
3514 $vc = $v->structmem('faultCode');
3515 $vs = $v->structmem('faultString');
3516 $r = new xmlrpcresp(0, $vc->scalarval(), $vs->scalarval());
3517 }
3518 else
3519 {
3520 $r = new xmlrpcresp($v);
3521 }
3522 return $r;
3523 case 'methodcall':
3524 $m = new xmlrpcmsg($GLOBALS['_xh']['method']);
3525 for($i=0; $i < count($GLOBALS['_xh']['params']); $i++)
3526 {
3527 $m->addParam($GLOBALS['_xh']['params'][$i]);
3528 }
3529 return $m;
3530 case 'value':
3531 return $GLOBALS['_xh']['value'];
3532 default:
3533 return false;
3534 }
3535 }
3536
3537 /**
3538 * decode a string that is encoded w/ "chunked" transfer encoding
3539 * as defined in rfc2068 par. 19.4.6
3540 * code shamelessly stolen from nusoap library by Dietrich Ayala
3541 *
3542 * @param string $buffer the string to be decoded
3543 * @return string
3544 */
3545 function decode_chunked($buffer)
3546 {
3547 // length := 0
3548 $length = 0;
3549 $new = '';
3550
3551 // read chunk-size, chunk-extension (if any) and crlf
3552 // get the position of the linebreak
3553 $chunkend = strpos($buffer,"\r\n") + 2;
3554 $temp = substr($buffer,0,$chunkend);
3555 $chunk_size = hexdec( trim($temp) );
3556 $chunkstart = $chunkend;
3557 while($chunk_size > 0)
3558 {
3559 $chunkend = strpos($buffer, "\r\n", $chunkstart + $chunk_size);
3560
3561 // just in case we got a broken connection
3562 if($chunkend == false)
3563 {
3564 $chunk = substr($buffer,$chunkstart);
3565 // append chunk-data to entity-body
3566 $new .= $chunk;
3567 $length += strlen($chunk);
3568 break;
3569 }
3570
3571 // read chunk-data and crlf
3572 $chunk = substr($buffer,$chunkstart,$chunkend-$chunkstart);
3573 // append chunk-data to entity-body
3574 $new .= $chunk;
3575 // length := length + chunk-size
3576 $length += strlen($chunk);
3577 // read chunk-size and crlf
3578 $chunkstart = $chunkend + 2;
3579
3580 $chunkend = strpos($buffer,"\r\n",$chunkstart)+2;
3581 if($chunkend == false)
3582 {
3583 break; //just in case we got a broken connection
3584 }
3585 $temp = substr($buffer,$chunkstart,$chunkend-$chunkstart);
3586 $chunk_size = hexdec( trim($temp) );
3587 $chunkstart = $chunkend;
3588 }
3589 return $new;
3590 }
3591
3592 /**
3593 * xml charset encoding guessing helper function.
3594 * Tries to determine the charset encoding of an XML chunk received over HTTP.
3595 * NB: according to the spec (RFC 3023), if text/xml content-type is received over HTTP without a content-type,
3596 * we SHOULD assume it is strictly US-ASCII. But we try to be more tolerant of unconforming (legacy?) clients/servers,
3597 * which will be most probably using UTF-8 anyway...
3598 *
3599 * @param string $httpheaders the http Content-type header
3600 * @param string $xmlchunk xml content buffer
3601 * @param string $encoding_prefs comma separated list of character encodings to be used as default (when mb extension is enabled)
3602 *
3603 * @todo explore usage of mb_http_input(): does it detect http headers + post data? if so, use it instead of hand-detection!!!
3604 */
3605 function guess_encoding($httpheader='', $xmlchunk='', $encoding_prefs=null)
3606 {
3607 // discussion: see http://www.yale.edu/pclt/encoding/
3608 // 1 - test if encoding is specified in HTTP HEADERS
3609
3610 //Details:
3611 // LWS: (\13\10)?( |\t)+
3612 // token: (any char but excluded stuff)+
3613 // quoted string: " (any char but double quotes and cointrol chars)* "
3614 // header: Content-type = ...; charset=value(; ...)*
3615 // where value is of type token, no LWS allowed between 'charset' and value
3616 // Note: we do not check for invalid chars in VALUE:
3617 // this had better be done using pure ereg as below
3618 // Note 2: we might be removing whitespace/tabs that ought to be left in if
3619 // the received charset is a quoted string. But nobody uses such charset names...
3620
3621 /// @todo this test will pass if ANY header has charset specification, not only Content-Type. Fix it?
3622 $matches = array();
3623 if(preg_match('/;\s*charset\s*=([^;]+)/i', $httpheader, $matches))
3624 {
3625 return strtoupper(trim($matches[1], " \t\""));
3626 }
3627
3628 // 2 - scan the first bytes of the data for a UTF-16 (or other) BOM pattern
3629 // (source: http://www.w3.org/TR/2000/REC-xml-20001006)
3630 // NOTE: actually, according to the spec, even if we find the BOM and determine
3631 // an encoding, we should check if there is an encoding specified
3632 // in the xml declaration, and verify if they match.
3633 /// @todo implement check as described above?
3634 /// @todo implement check for first bytes of string even without a BOM? (It sure looks harder than for cases WITH a BOM)
3635 if(preg_match('/^(\x00\x00\xFE\xFF|\xFF\xFE\x00\x00|\x00\x00\xFF\xFE|\xFE\xFF\x00\x00)/', $xmlchunk))
3636 {
3637 return 'UCS-4';
3638 }
3639 elseif(preg_match('/^(\xFE\xFF|\xFF\xFE)/', $xmlchunk))
3640 {
3641 return 'UTF-16';
3642 }
3643 elseif(preg_match('/^(\xEF\xBB\xBF)/', $xmlchunk))
3644 {
3645 return 'UTF-8';
3646 }
3647
3648 // 3 - test if encoding is specified in the xml declaration
3649 // Details:
3650 // SPACE: (#x20 | #x9 | #xD | #xA)+ === [ \x9\xD\xA]+
3651 // EQ: SPACE?=SPACE? === [ \x9\xD\xA]*=[ \x9\xD\xA]*
3652 if (preg_match('/^<\?xml\s+version\s*=\s*'. "((?:\"[a-zA-Z0-9_.:-]+\")|(?:'[a-zA-Z0-9_.:-]+'))".
3653 '\s+encoding\s*=\s*' . "((?:\"[A-Za-z][A-Za-z0-9._-]*\")|(?:'[A-Za-z][A-Za-z0-9._-]*'))/",
3654 $xmlchunk, $matches))
3655 {
3656 return strtoupper(substr($matches[2], 1, -1));
3657 }
3658
3659 // 4 - if mbstring is available, let it do the guesswork
3660 // NB: we favour finding an encoding that is compatible with what we can process
3661 if(extension_loaded('mbstring'))
3662 {
3663 if($encoding_prefs)
3664 {
3665 $enc = mb_detect_encoding($xmlchunk, $encoding_prefs);
3666 }
3667 else
3668 {
3669 $enc = mb_detect_encoding($xmlchunk);
3670 }
3671 // NB: mb_detect likes to call it ascii, xml parser likes to call it US_ASCII...
3672 // IANA also likes better US-ASCII, so go with it
3673 if($enc == 'ASCII')
3674 {
3675 $enc = 'US-'.$enc;
3676 }
3677 return $enc;
3678 }
3679 else
3680 {
3681 // no encoding specified: as per HTTP1.1 assume it is iso-8859-1?
3682 // Both RFC 2616 (HTTP 1.1) and 1945 (HTTP 1.0) clearly state that for text/xxx content types
3683 // this should be the standard. And we should be getting text/xml as request and response.
3684 // BUT we have to be backward compatible with the lib, which always used UTF-8 as default...
3685 return $GLOBALS['xmlrpc_defencoding'];
3686 }
3687 }
3688
3689 /**
3690 * Checks if a given charset encoding is present in a list of encodings or
3691 * if it is a valid subset of any encoding in the list
3692 * @param string $encoding charset to be tested
3693 * @param mixed $validlist comma separated list of valid charsets (or array of charsets)
3694 */
3695 function is_valid_charset($encoding, $validlist)
3696 {
3697 $charset_supersets = array(
3698 'US-ASCII' => array ('ISO-8859-1', 'ISO-8859-2', 'ISO-8859-3', 'ISO-8859-4',
3699 'ISO-8859-5', 'ISO-8859-6', 'ISO-8859-7', 'ISO-8859-8',
3700 'ISO-8859-9', 'ISO-8859-10', 'ISO-8859-11', 'ISO-8859-12',
3701 'ISO-8859-13', 'ISO-8859-14', 'ISO-8859-15', 'UTF-8',
3702 'EUC-JP', 'EUC-', 'EUC-KR', 'EUC-CN')
3703 );
3704 if (is_string($validlist))
3705 $validlist = explode(',', $validlist);
3706 if (@in_array(strtoupper($encoding), $validlist))
3707 return true;
3708 else
3709 {
3710 if (array_key_exists($encoding, $charset_supersets))
3711 foreach ($validlist as $allowed)
3712 if (in_array($allowed, $charset_supersets[$encoding]))
3713 return true;
3714 return false;
3715 }
3716 }
3717
3718?> \ No newline at end of file
generated by cgit v1.1 at 2024-12-20 10:13:49 +0000