+ // Get parameters
+ $params = $this->extractRequestParams();
+
+ if ( !isset( $params['modules'] ) && !isset( $params['querymodules'] ) ) {
+ $this->dieUsage( '', 'help' );
+ }
+
+ $this->getMain()->setHelp();
+
+ $result = $this->getResult();
+ $queryObj = new ApiQuery( $this->getMain(), 'query' );
+ $r = array();
+ if ( is_array( $params['modules'] ) ) {
+ $modArr = $this->getMain()->getModules();
+
+ foreach ( $params['modules'] as $m ) {
+ if ( !isset( $modArr[$m] ) ) {
+ $r[] = array( 'name' => $m, 'missing' => '' );
+ continue;
+ }
+ $module = new $modArr[$m]( $this->getMain(), $m );
+
+ $r[] = $this->buildModuleHelp( $module, 'action' );
+ }
+ }
+
+ if ( is_array( $params['querymodules'] ) ) {
+ $qmodArr = $queryObj->getModules();
+
+ foreach ( $params['querymodules'] as $qm ) {
+ if ( !isset( $qmodArr[$qm] ) ) {
+ $r[] = array( 'name' => $qm, 'missing' => '' );
+ continue;
+ }
+ $module = new $qmodArr[$qm]( $this, $qm );
+ $type = $queryObj->getModuleType( $qm );
+
+ if ( $type === null ) {
+ $r[] = array( 'name' => $qm, 'missing' => '' );
+ continue;
+ }
+
+ $r[] = $this->buildModuleHelp( $module, $type );
+ }
+ }
+ $result->setIndexedTagName( $r, 'module' );
+ $result->addValue( null, $this->getModuleName(), $r );
+ }
+
+ /**
+ * @param $module ApiBase
+ * @param $type String What type of request is this? e.g. action, query, list, prop, meta, format
+ * @return string
+ */
+ private function buildModuleHelp( $module, $type ) {
+ $msg = ApiMain::makeHelpMsgHeader( $module, $type );
+
+ $msg2 = $module->makeHelpMsg();
+ if ( $msg2 !== false ) {
+ $msg .= $msg2;
+ }
+
+ return $msg;
+ }
+
+ public function shouldCheckMaxlag() {
+ return false;
+ }
+
+ public function isReadMode() {
+ return false;
+ }
+
+ public function getAllowedParams() {
+ return array(
+ 'modules' => array(
+ ApiBase::PARAM_ISMULTI => true
+ ),
+ 'querymodules' => array(
+ ApiBase::PARAM_ISMULTI => true
+ ),
+ );
+ }
+
+ public function getParamDescription() {
+ return array(
+ 'modules' => 'List of module names (value of the action= parameter)',
+ 'querymodules' => 'List of query module names (value of prop=, meta= or list= parameter)',
+ );
+ }
+
+ public function getDescription() {
+ return 'Display this help screen. Or the help screen for the specified module';
+ }
+
+ public function getExamples() {
+ return array(
+ 'api.php?action=help' => 'Whole help page',
+ 'api.php?action=help&modules=protect' => 'Module (action) help page',
+ 'api.php?action=help&querymodules=categorymembers' => 'Query (list) modules help page',
+ 'api.php?action=help&querymodules=info' => 'Query (prop) modules help page',
+ 'api.php?action=help&querymodules=siteinfo' => 'Query (meta) modules help page',
+ );