c81cf7ee13c6c2ba1f4ff6d7e77c285c441204c2
[lhc/web/wiklou.git] / includes / api / ApiParamInfo.php
1 <?php
2 /**
3 * Copyright © 2008 Roan Kattouw "<Firstname>.<Lastname>@gmail.com"
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
19 *
20 * @file
21 */
22
23 /**
24 * @ingroup API
25 */
26 class ApiParamInfo extends ApiBase {
27
28 private $helpFormat;
29 private $context;
30
31 public function __construct( ApiMain $main, $action ) {
32 parent::__construct( $main, $action );
33 }
34
35 public function execute() {
36 // Get parameters
37 $params = $this->extractRequestParams();
38
39 $this->helpFormat = $params['helpformat'];
40 $this->context = new RequestContext;
41 $this->context->setUser( new User ); // anon to avoid caching issues
42 $this->context->setLanguage( $this->getMain()->getLanguage() );
43
44 if ( is_array( $params['modules'] ) ) {
45 $modules = [];
46 foreach ( $params['modules'] as $path ) {
47 if ( $path === '*' || $path === '**' ) {
48 $path = "main+$path";
49 }
50 if ( substr( $path, -2 ) === '+*' || substr( $path, -2 ) === ' *' ) {
51 $submodules = true;
52 $path = substr( $path, 0, -2 );
53 $recursive = false;
54 } elseif ( substr( $path, -3 ) === '+**' || substr( $path, -3 ) === ' **' ) {
55 $submodules = true;
56 $path = substr( $path, 0, -3 );
57 $recursive = true;
58 } else {
59 $submodules = false;
60 }
61
62 if ( $submodules ) {
63 try {
64 $module = $this->getModuleFromPath( $path );
65 } catch ( ApiUsageException $ex ) {
66 foreach ( $ex->getStatusValue()->getErrors() as $error ) {
67 $this->addWarning( $error );
68 }
69 continue;
70 }
71 $submodules = $this->listAllSubmodules( $module, $recursive );
72 if ( $submodules ) {
73 $modules = array_merge( $modules, $submodules );
74 } else {
75 $this->addWarning( [ 'apierror-badmodule-nosubmodules', $path ], 'badmodule' );
76 }
77 } else {
78 $modules[] = $path;
79 }
80 }
81 } else {
82 $modules = [];
83 }
84
85 if ( is_array( $params['querymodules'] ) ) {
86 $queryModules = $params['querymodules'];
87 foreach ( $queryModules as $m ) {
88 $modules[] = 'query+' . $m;
89 }
90 } else {
91 $queryModules = [];
92 }
93
94 if ( is_array( $params['formatmodules'] ) ) {
95 $formatModules = $params['formatmodules'];
96 foreach ( $formatModules as $m ) {
97 $modules[] = $m;
98 }
99 } else {
100 $formatModules = [];
101 }
102
103 $modules = array_unique( $modules );
104
105 $res = [];
106
107 foreach ( $modules as $m ) {
108 try {
109 $module = $this->getModuleFromPath( $m );
110 } catch ( ApiUsageException $ex ) {
111 foreach ( $ex->getStatusValue()->getErrors() as $error ) {
112 $this->addWarning( $error );
113 }
114 continue;
115 }
116 $key = 'modules';
117
118 // Back compat
119 $isBCQuery = false;
120 if ( $module->getParent() && $module->getParent()->getModuleName() == 'query' &&
121 in_array( $module->getModuleName(), $queryModules )
122 ) {
123 $isBCQuery = true;
124 $key = 'querymodules';
125 }
126 if ( in_array( $module->getModuleName(), $formatModules ) ) {
127 $key = 'formatmodules';
128 }
129
130 $item = $this->getModuleInfo( $module );
131 if ( $isBCQuery ) {
132 $item['querytype'] = $item['group'];
133 }
134 $res[$key][] = $item;
135 }
136
137 $result = $this->getResult();
138 $result->addValue( [ $this->getModuleName() ], 'helpformat', $this->helpFormat );
139
140 foreach ( $res as $key => $stuff ) {
141 ApiResult::setIndexedTagName( $res[$key], 'module' );
142 }
143
144 if ( $params['mainmodule'] ) {
145 $res['mainmodule'] = $this->getModuleInfo( $this->getMain() );
146 }
147
148 if ( $params['pagesetmodule'] ) {
149 $pageSet = new ApiPageSet( $this->getMain()->getModuleManager()->getModule( 'query' ) );
150 $res['pagesetmodule'] = $this->getModuleInfo( $pageSet );
151 unset( $res['pagesetmodule']['name'] );
152 unset( $res['pagesetmodule']['path'] );
153 unset( $res['pagesetmodule']['group'] );
154 }
155
156 $result->addValue( null, $this->getModuleName(), $res );
157 }
158
159 /**
160 * List all submodules of a module
161 * @param ApiBase $module
162 * @param bool $recursive
163 * @return string[]
164 */
165 private function listAllSubmodules( ApiBase $module, $recursive ) {
166 $manager = $module->getModuleManager();
167 if ( $manager ) {
168 $paths = [];
169 $names = $manager->getNames();
170 sort( $names );
171 foreach ( $names as $name ) {
172 $submodule = $manager->getModule( $name );
173 $paths[] = $submodule->getModulePath();
174 if ( $recursive && $submodule->getModuleManager() ) {
175 $paths = array_merge( $paths, $this->listAllSubmodules( $submodule, $recursive ) );
176 }
177 }
178 }
179 return $paths;
180 }
181
182 /**
183 * @param array &$res Result array
184 * @param string $key Result key
185 * @param Message[] $msgs
186 * @param bool $joinLists
187 */
188 protected function formatHelpMessages( array &$res, $key, array $msgs, $joinLists = false ) {
189 switch ( $this->helpFormat ) {
190 case 'none':
191 break;
192
193 case 'wikitext':
194 $ret = [];
195 foreach ( $msgs as $m ) {
196 $ret[] = $m->setContext( $this->context )->text();
197 }
198 $res[$key] = implode( "\n\n", $ret );
199 if ( $joinLists ) {
200 $res[$key] = preg_replace( '!^(([*#:;])[^\n]*)\n\n(?=\2)!m', "$1\n", $res[$key] );
201 }
202 break;
203
204 case 'html':
205 $ret = [];
206 foreach ( $msgs as $m ) {
207 $ret[] = $m->setContext( $this->context )->parseAsBlock();
208 }
209 $ret = implode( "\n", $ret );
210 if ( $joinLists ) {
211 $ret = preg_replace( '!\s*</([oud]l)>\s*<\1>\s*!', "\n", $ret );
212 }
213 $res[$key] = Parser::stripOuterParagraph( $ret );
214 break;
215
216 case 'raw':
217 $res[$key] = [];
218 foreach ( $msgs as $m ) {
219 $a = [
220 'key' => $m->getKey(),
221 'params' => $m->getParams(),
222 ];
223 ApiResult::setIndexedTagName( $a['params'], 'param' );
224 if ( $m instanceof ApiHelpParamValueMessage ) {
225 $a['forvalue'] = $m->getParamValue();
226 }
227 $res[$key][] = $a;
228 }
229 ApiResult::setIndexedTagName( $res[$key], 'msg' );
230 break;
231 }
232 }
233
234 /**
235 * @param ApiBase $module
236 * @return array
237 */
238 private function getModuleInfo( $module ) {
239 $ret = [];
240 $path = $module->getModulePath();
241
242 $ret['name'] = $module->getModuleName();
243 $ret['classname'] = get_class( $module );
244 $ret['path'] = $path;
245 if ( !$module->isMain() ) {
246 $ret['group'] = $module->getParent()->getModuleManager()->getModuleGroup(
247 $module->getModuleName()
248 );
249 }
250 $ret['prefix'] = $module->getModulePrefix();
251
252 $sourceInfo = $module->getModuleSourceInfo();
253 if ( $sourceInfo ) {
254 $ret['source'] = $sourceInfo['name'];
255 if ( isset( $sourceInfo['namemsg'] ) ) {
256 $ret['sourcename'] = $this->context->msg( $sourceInfo['namemsg'] )->text();
257 } else {
258 $ret['sourcename'] = $ret['source'];
259 }
260
261 $link = SpecialPage::getTitleFor( 'Version', 'License/' . $sourceInfo['name'] )->getFullURL();
262 if ( isset( $sourceInfo['license-name'] ) ) {
263 $ret['licensetag'] = $sourceInfo['license-name'];
264 $ret['licenselink'] = (string)$link;
265 } elseif ( SpecialVersion::getExtLicenseFileName( dirname( $sourceInfo['path'] ) ) ) {
266 $ret['licenselink'] = (string)$link;
267 }
268 }
269
270 $this->formatHelpMessages( $ret, 'description', $module->getFinalDescription() );
271
272 foreach ( $module->getHelpFlags() as $flag ) {
273 $ret[$flag] = true;
274 }
275
276 $ret['helpurls'] = (array)$module->getHelpUrls();
277 if ( isset( $ret['helpurls'][0] ) && $ret['helpurls'][0] === false ) {
278 $ret['helpurls'] = [];
279 }
280 ApiResult::setIndexedTagName( $ret['helpurls'], 'helpurl' );
281
282 if ( $this->helpFormat !== 'none' ) {
283 $ret['examples'] = [];
284 $examples = $module->getExamplesMessages();
285 foreach ( $examples as $qs => $msg ) {
286 $item = [
287 'query' => $qs
288 ];
289 $msg = ApiBase::makeMessage( $msg, $this->context, [
290 $module->getModulePrefix(),
291 $module->getModuleName(),
292 $module->getModulePath()
293 ] );
294 $this->formatHelpMessages( $item, 'description', [ $msg ] );
295 if ( isset( $item['description'] ) ) {
296 if ( is_array( $item['description'] ) ) {
297 $item['description'] = $item['description'][0];
298 } else {
299 ApiResult::setSubelementsList( $item, 'description' );
300 }
301 }
302 $ret['examples'][] = $item;
303 }
304 ApiResult::setIndexedTagName( $ret['examples'], 'example' );
305 }
306
307 $ret['parameters'] = [];
308 $ret['templatedparameters'] = [];
309 $params = $module->getFinalParams( ApiBase::GET_VALUES_FOR_HELP );
310 $paramDesc = $module->getFinalParamDescription();
311 $index = 0;
312 foreach ( $params as $name => $settings ) {
313 if ( !is_array( $settings ) ) {
314 $settings = [ ApiBase::PARAM_DFLT => $settings ];
315 }
316
317 $item = [
318 'index' => ++$index,
319 'name' => $name,
320 ];
321
322 if ( !empty( $settings[ApiBase::PARAM_TEMPLATE_VARS] ) ) {
323 $item['templatevars'] = $settings[ApiBase::PARAM_TEMPLATE_VARS];
324 ApiResult::setIndexedTagName( $item['templatevars'], 'var' );
325 }
326
327 if ( isset( $paramDesc[$name] ) ) {
328 $this->formatHelpMessages( $item, 'description', $paramDesc[$name], true );
329 }
330
331 $item['required'] = !empty( $settings[ApiBase::PARAM_REQUIRED] );
332
333 if ( !empty( $settings[ApiBase::PARAM_DEPRECATED] ) ) {
334 $item['deprecated'] = true;
335 }
336
337 if ( $name === 'token' && $module->needsToken() ) {
338 $item['tokentype'] = $module->needsToken();
339 }
340
341 if ( !isset( $settings[ApiBase::PARAM_TYPE] ) ) {
342 $dflt = $settings[ApiBase::PARAM_DFLT] ?? null;
343 if ( is_bool( $dflt ) ) {
344 $settings[ApiBase::PARAM_TYPE] = 'boolean';
345 } elseif ( is_string( $dflt ) || is_null( $dflt ) ) {
346 $settings[ApiBase::PARAM_TYPE] = 'string';
347 } elseif ( is_int( $dflt ) ) {
348 $settings[ApiBase::PARAM_TYPE] = 'integer';
349 }
350 }
351
352 if ( isset( $settings[ApiBase::PARAM_DFLT] ) ) {
353 switch ( $settings[ApiBase::PARAM_TYPE] ) {
354 case 'boolean':
355 $item['default'] = (bool)$settings[ApiBase::PARAM_DFLT];
356 break;
357 case 'string':
358 case 'text':
359 case 'password':
360 $item['default'] = strval( $settings[ApiBase::PARAM_DFLT] );
361 break;
362 case 'integer':
363 case 'limit':
364 $item['default'] = intval( $settings[ApiBase::PARAM_DFLT] );
365 break;
366 case 'timestamp':
367 $item['default'] = wfTimestamp( TS_ISO_8601, $settings[ApiBase::PARAM_DFLT] );
368 break;
369 default:
370 $item['default'] = $settings[ApiBase::PARAM_DFLT];
371 break;
372 }
373 }
374
375 $item['multi'] = !empty( $settings[ApiBase::PARAM_ISMULTI] );
376 if ( $item['multi'] ) {
377 $item['lowlimit'] = !empty( $settings[ApiBase::PARAM_ISMULTI_LIMIT1] )
378 ? $settings[ApiBase::PARAM_ISMULTI_LIMIT1]
379 : ApiBase::LIMIT_SML1;
380 $item['highlimit'] = !empty( $settings[ApiBase::PARAM_ISMULTI_LIMIT2] )
381 ? $settings[ApiBase::PARAM_ISMULTI_LIMIT2]
382 : ApiBase::LIMIT_SML2;
383 $item['limit'] = $this->getMain()->canApiHighLimits()
384 ? $item['highlimit']
385 : $item['lowlimit'];
386 }
387
388 if ( !empty( $settings[ApiBase::PARAM_ALLOW_DUPLICATES] ) ) {
389 $item['allowsduplicates'] = true;
390 }
391
392 if ( isset( $settings[ApiBase::PARAM_TYPE] ) ) {
393 if ( $settings[ApiBase::PARAM_TYPE] === 'submodule' ) {
394 if ( isset( $settings[ApiBase::PARAM_SUBMODULE_MAP] ) ) {
395 ksort( $settings[ApiBase::PARAM_SUBMODULE_MAP] );
396 $item['type'] = array_keys( $settings[ApiBase::PARAM_SUBMODULE_MAP] );
397 $item['submodules'] = $settings[ApiBase::PARAM_SUBMODULE_MAP];
398 } else {
399 $item['type'] = $module->getModuleManager()->getNames( $name );
400 sort( $item['type'] );
401 $prefix = $module->isMain()
402 ? '' : ( $module->getModulePath() . '+' );
403 $item['submodules'] = [];
404 foreach ( $item['type'] as $v ) {
405 $item['submodules'][$v] = $prefix . $v;
406 }
407 }
408 if ( isset( $settings[ApiBase::PARAM_SUBMODULE_PARAM_PREFIX] ) ) {
409 $item['submoduleparamprefix'] = $settings[ApiBase::PARAM_SUBMODULE_PARAM_PREFIX];
410 }
411
412 $deprecatedSubmodules = [];
413 foreach ( $item['submodules'] as $v => $submodulePath ) {
414 try {
415 $submod = $this->getModuleFromPath( $submodulePath );
416 if ( $submod && $submod->isDeprecated() ) {
417 $deprecatedSubmodules[] = $v;
418 }
419 } catch ( ApiUsageException $ex ) {
420 // Ignore
421 }
422 }
423 if ( $deprecatedSubmodules ) {
424 $item['type'] = array_merge(
425 array_diff( $item['type'], $deprecatedSubmodules ),
426 $deprecatedSubmodules
427 );
428 $item['deprecatedvalues'] = $deprecatedSubmodules;
429 }
430 } elseif ( $settings[ApiBase::PARAM_TYPE] === 'tags' ) {
431 $item['type'] = ChangeTags::listExplicitlyDefinedTags();
432 } else {
433 $item['type'] = $settings[ApiBase::PARAM_TYPE];
434 }
435 if ( is_array( $item['type'] ) ) {
436 // To prevent sparse arrays from being serialized to JSON as objects
437 $item['type'] = array_values( $item['type'] );
438 ApiResult::setIndexedTagName( $item['type'], 't' );
439 }
440
441 // Add 'allspecifier' if applicable
442 if ( $item['type'] === 'namespace' ) {
443 $allowAll = true;
444 $allSpecifier = ApiBase::ALL_DEFAULT_STRING;
445 } else {
446 $allowAll = $settings[ApiBase::PARAM_ALL] ?? false;
447 $allSpecifier = ( is_string( $allowAll ) ? $allowAll : ApiBase::ALL_DEFAULT_STRING );
448 }
449 if ( $allowAll && $item['multi'] &&
450 ( is_array( $item['type'] ) || $item['type'] === 'namespace' ) ) {
451 $item['allspecifier'] = $allSpecifier;
452 }
453
454 if ( $item['type'] === 'namespace' &&
455 isset( $settings[ApiBase::PARAM_EXTRA_NAMESPACES] ) &&
456 is_array( $settings[ApiBase::PARAM_EXTRA_NAMESPACES] )
457 ) {
458 $item['extranamespaces'] = $settings[ApiBase::PARAM_EXTRA_NAMESPACES];
459 ApiResult::setArrayType( $item['extranamespaces'], 'array' );
460 ApiResult::setIndexedTagName( $item['extranamespaces'], 'ns' );
461 }
462 }
463 if ( isset( $settings[ApiBase::PARAM_MAX] ) ) {
464 $item['max'] = $settings[ApiBase::PARAM_MAX];
465 }
466 if ( isset( $settings[ApiBase::PARAM_MAX2] ) ) {
467 $item['highmax'] = $settings[ApiBase::PARAM_MAX2];
468 }
469 if ( isset( $settings[ApiBase::PARAM_MIN] ) ) {
470 $item['min'] = $settings[ApiBase::PARAM_MIN];
471 }
472 if ( !empty( $settings[ApiBase::PARAM_RANGE_ENFORCE] ) ) {
473 $item['enforcerange'] = true;
474 }
475 if ( isset( $settings[self::PARAM_MAX_BYTES] ) ) {
476 $item['maxbytes'] = $settings[self::PARAM_MAX_BYTES];
477 }
478 if ( isset( $settings[self::PARAM_MAX_CHARS] ) ) {
479 $item['maxchars'] = $settings[self::PARAM_MAX_CHARS];
480 }
481 if ( !empty( $settings[ApiBase::PARAM_DEPRECATED_VALUES] ) ) {
482 $deprecatedValues = array_keys( $settings[ApiBase::PARAM_DEPRECATED_VALUES] );
483 if ( is_array( $item['type'] ) ) {
484 $deprecatedValues = array_intersect( $deprecatedValues, $item['type'] );
485 }
486 if ( $deprecatedValues ) {
487 $item['deprecatedvalues'] = array_values( $deprecatedValues );
488 ApiResult::setIndexedTagName( $item['deprecatedvalues'], 'v' );
489 }
490 }
491
492 if ( !empty( $settings[ApiBase::PARAM_HELP_MSG_INFO] ) ) {
493 $item['info'] = [];
494 foreach ( $settings[ApiBase::PARAM_HELP_MSG_INFO] as $i ) {
495 $tag = array_shift( $i );
496 $info = [
497 'name' => $tag,
498 ];
499 if ( count( $i ) ) {
500 $info['values'] = $i;
501 ApiResult::setIndexedTagName( $info['values'], 'v' );
502 }
503 $this->formatHelpMessages( $info, 'text', [
504 $this->context->msg( "apihelp-{$path}-paraminfo-{$tag}" )
505 ->numParams( count( $i ) )
506 ->params( $this->context->getLanguage()->commaList( $i ) )
507 ->params( $module->getModulePrefix() )
508 ] );
509 ApiResult::setSubelementsList( $info, 'text' );
510 $item['info'][] = $info;
511 }
512 ApiResult::setIndexedTagName( $item['info'], 'i' );
513 }
514
515 $key = empty( $settings[ApiBase::PARAM_TEMPLATE_VARS] ) ? 'parameters' : 'templatedparameters';
516 $ret[$key][] = $item;
517 }
518 ApiResult::setIndexedTagName( $ret['parameters'], 'param' );
519 ApiResult::setIndexedTagName( $ret['templatedparameters'], 'param' );
520
521 $dynamicParams = $module->dynamicParameterDocumentation();
522 if ( $dynamicParams !== null ) {
523 if ( $this->helpFormat === 'none' ) {
524 $ret['dynamicparameters'] = true;
525 } else {
526 $dynamicParams = ApiBase::makeMessage( $dynamicParams, $this->context, [
527 $module->getModulePrefix(),
528 $module->getModuleName(),
529 $module->getModulePath()
530 ] );
531 $this->formatHelpMessages( $ret, 'dynamicparameters', [ $dynamicParams ] );
532 }
533 }
534
535 return $ret;
536 }
537
538 public function isReadMode() {
539 return false;
540 }
541
542 public function getAllowedParams() {
543 // back compat
544 $querymodules = $this->getMain()->getModuleManager()
545 ->getModule( 'query' )->getModuleManager()->getNames();
546 sort( $querymodules );
547 $formatmodules = $this->getMain()->getModuleManager()->getNames( 'format' );
548 sort( $formatmodules );
549
550 return [
551 'modules' => [
552 ApiBase::PARAM_ISMULTI => true,
553 ],
554 'helpformat' => [
555 ApiBase::PARAM_DFLT => 'none',
556 ApiBase::PARAM_TYPE => [ 'html', 'wikitext', 'raw', 'none' ],
557 ],
558
559 'querymodules' => [
560 ApiBase::PARAM_DEPRECATED => true,
561 ApiBase::PARAM_ISMULTI => true,
562 ApiBase::PARAM_TYPE => $querymodules,
563 ],
564 'mainmodule' => [
565 ApiBase::PARAM_DEPRECATED => true,
566 ],
567 'pagesetmodule' => [
568 ApiBase::PARAM_DEPRECATED => true,
569 ],
570 'formatmodules' => [
571 ApiBase::PARAM_DEPRECATED => true,
572 ApiBase::PARAM_ISMULTI => true,
573 ApiBase::PARAM_TYPE => $formatmodules,
574 ]
575 ];
576 }
577
578 protected function getExamplesMessages() {
579 return [
580 'action=paraminfo&modules=parse|phpfm|query%2Ballpages|query%2Bsiteinfo'
581 => 'apihelp-paraminfo-example-1',
582 'action=paraminfo&modules=query%2B*'
583 => 'apihelp-paraminfo-example-2',
584 ];
585 }
586
587 public function getHelpUrls() {
588 return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Parameter_information';
589 }
590 }