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<?php
class ExtensionProcessor implements Processor {
/**
* Keys that should be set to $GLOBALS
*
* @var array
*/
protected static $globalSettings = [
'ResourceLoaderSources',
'ResourceLoaderLESSVars',
'ResourceLoaderLESSImportPaths',
'DefaultUserOptions',
'HiddenPrefs',
'GroupPermissions',
'RevokePermissions',
'ImplicitGroups',
'GroupsAddToSelf',
'GroupsRemoveFromSelf',
'AddGroups',
'RemoveGroups',
'AvailableRights',
'ContentHandlers',
'ConfigRegistry',
'SessionProviders',
'AuthManagerAutoConfig',
'CentralIdLookupProviders',
'RateLimits',
'RecentChangesFlags',
'MediaHandlers',
'ExtensionFunctions',
'ExtensionEntryPointListFiles',
'SpecialPages',
'JobClasses',
'LogTypes',
'LogRestrictions',
'FilterLogTypes',
'ActionFilteredLogs',
'LogNames',
'LogHeaders',
'LogActions',
'LogActionsHandlers',
'Actions',
'APIModules',
'APIFormatModules',
'APIMetaModules',
'APIPropModules',
'APIListModules',
'ValidSkinNames',
'FeedClasses',
];
/**
* Mapping of global settings to their specific merge strategies.
*
* @see ExtensionRegistry::exportExtractedData
* @see getExtractedInfo
* @var array
*/
protected static $mergeStrategies = [
'wgGroupPermissions' => 'array_plus_2d',
'wgRevokePermissions' => 'array_plus_2d',
'wgHooks' => 'array_merge_recursive',
'wgExtensionCredits' => 'array_merge_recursive',
'wgExtraGenderNamespaces' => 'array_plus',
'wgNamespacesWithSubpages' => 'array_plus',
'wgNamespaceContentModels' => 'array_plus',
'wgNamespaceProtection' => 'array_plus',
'wgCapitalLinkOverrides' => 'array_plus',
'wgRateLimits' => 'array_plus_2d',
'wgAuthManagerAutoConfig' => 'array_plus_2d',
];
/**
* Keys that are part of the extension credits
*
* @var array
*/
protected static $creditsAttributes = [
'name',
'namemsg',
'author',
'version',
'url',
'description',
'descriptionmsg',
'license-name',
];
/**
* Things that are not 'attributes', but are not in
* $globalSettings or $creditsAttributes.
*
* @var array
*/
protected static $notAttributes = [
'callback',
'Hooks',
'namespaces',
'ResourceFileModulePaths',
'ResourceModules',
'ResourceModuleSkinStyles',
'ExtensionMessagesFiles',
'MessagesDirs',
'type',
'config',
'ParserTestFiles',
'AutoloadClasses',
'manifest_version',
'load_composer_autoloader',
];
/**
* Stuff that is going to be set to $GLOBALS
*
* Some keys are pre-set to arrays so we can += to them
*
* @var array
*/
protected $globals = [
'wgExtensionMessagesFiles' => [],
'wgMessagesDirs' => [],
];
/**
* Things that should be define()'d
*
* @var array
*/
protected $defines = [];
/**
* Things to be called once registration of these extensions are done
*
* @var callable[]
*/
protected $callbacks = [];
/**
* @var array
*/
protected $credits = [];
/**
* Any thing else in the $info that hasn't
* already been processed
*
* @var array
*/
protected $attributes = [];
/**
* @param string $path
* @param array $info
* @param int $version manifest_version for info
* @return array
*/
public function extractInfo( $path, array $info, $version ) {
$this->extractConfig( $info );
$this->extractHooks( $info );
$dir = dirname( $path );
$this->extractExtensionMessagesFiles( $dir, $info );
$this->extractMessagesDirs( $dir, $info );
$this->extractNamespaces( $info );
$this->extractResourceLoaderModules( $dir, $info );
$this->extractParserTestFiles( $dir, $info );
if ( isset( $info['callback'] ) ) {
$this->callbacks[] = $info['callback'];
}
$this->extractCredits( $path, $info );
foreach ( $info as $key => $val ) {
if ( in_array( $key, self::$globalSettings ) ) {
$this->storeToArray( $path, "wg$key", $val, $this->globals );
// Ignore anything that starts with a @
} elseif ( $key[0] !== '@' && !in_array( $key, self::$notAttributes )
&& !in_array( $key, self::$creditsAttributes )
) {
$this->storeToArray( $path, $key, $val, $this->attributes );
}
}
}
public function getExtractedInfo() {
// Make sure the merge strategies are set
foreach ( $this->globals as $key => $val ) {
if ( isset( self::$mergeStrategies[$key] ) ) {
$this->globals[$key][ExtensionRegistry::MERGE_STRATEGY] = self::$mergeStrategies[$key];
}
}
return [
'globals' => $this->globals,
'defines' => $this->defines,
'callbacks' => $this->callbacks,
'credits' => $this->credits,
'attributes' => $this->attributes,
];
}
public function getRequirements( array $info ) {
$requirements = [];
$key = ExtensionRegistry::MEDIAWIKI_CORE;
if ( isset( $info['requires'][$key] ) ) {
$requirements[$key] = $info['requires'][$key];
}
return $requirements;
}
protected function extractHooks( array $info ) {
if ( isset( $info['Hooks'] ) ) {
foreach ( $info['Hooks'] as $name => $value ) {
if ( is_array( $value ) ) {
foreach ( $value as $callback ) {
$this->globals['wgHooks'][$name][] = $callback;
}
} else {
$this->globals['wgHooks'][$name][] = $value;
}
}
}
}
/**
* Register namespaces with the appropriate global settings
*
* @param array $info
*/
protected function extractNamespaces( array $info ) {
if ( isset( $info['namespaces'] ) ) {
foreach ( $info['namespaces'] as $ns ) {
$id = $ns['id'];
$this->defines[$ns['constant']] = $id;
$this->attributes['ExtensionNamespaces'][$id] = $ns['name'];
if ( isset( $ns['gender'] ) ) {
$this->globals['wgExtraGenderNamespaces'][$id] = $ns['gender'];
}
if ( isset( $ns['subpages'] ) && $ns['subpages'] ) {
$this->globals['wgNamespacesWithSubpages'][$id] = true;
}
if ( isset( $ns['content'] ) && $ns['content'] ) {
$this->globals['wgContentNamespaces'][] = $id;
}
if ( isset( $ns['defaultcontentmodel'] ) ) {
$this->globals['wgNamespaceContentModels'][$id] = $ns['defaultcontentmodel'];
}
if ( isset( $ns['protection'] ) ) {
$this->globals['wgNamespaceProtection'][$id] = $ns['protection'];
}
if ( isset( $ns['capitallinkoverride'] ) ) {
$this->globals['wgCapitalLinkOverrides'][$id] = $ns['capitallinkoverride'];
}
}
}
}
protected function extractResourceLoaderModules( $dir, array $info ) {
$defaultPaths = isset( $info['ResourceFileModulePaths'] )
? $info['ResourceFileModulePaths']
: false;
if ( isset( $defaultPaths['localBasePath'] ) ) {
if ( $defaultPaths['localBasePath'] === '' ) {
// Avoid double slashes (e.g. /extensions/Example//path)
$defaultPaths['localBasePath'] = $dir;
} else {
$defaultPaths['localBasePath'] = "$dir/{$defaultPaths['localBasePath']}";
}
}
foreach ( [ 'ResourceModules', 'ResourceModuleSkinStyles' ] as $setting ) {
if ( isset( $info[$setting] ) ) {
foreach ( $info[$setting] as $name => $data ) {
if ( isset( $data['localBasePath'] ) ) {
if ( $data['localBasePath'] === '' ) {
// Avoid double slashes (e.g. /extensions/Example//path)
$data['localBasePath'] = $dir;
} else {
$data['localBasePath'] = "$dir/{$data['localBasePath']}";
}
}
if ( $defaultPaths ) {
$data += $defaultPaths;
}
$this->globals["wg$setting"][$name] = $data;
}
}
}
}
protected function extractExtensionMessagesFiles( $dir, array $info ) {
if ( isset( $info['ExtensionMessagesFiles'] ) ) {
$this->globals["wgExtensionMessagesFiles"] += array_map( function( $file ) use ( $dir ) {
return "$dir/$file";
}, $info['ExtensionMessagesFiles'] );
}
}
/**
* Set message-related settings, which need to be expanded to use
* absolute paths
*
* @param string $dir
* @param array $info
*/
protected function extractMessagesDirs( $dir, array $info ) {
if ( isset( $info['MessagesDirs'] ) ) {
foreach ( $info['MessagesDirs'] as $name => $files ) {
foreach ( (array)$files as $file ) {
$this->globals["wgMessagesDirs"][$name][] = "$dir/$file";
}
}
}
}
/**
* @param string $path
* @param array $info
* @throws Exception
*/
protected function extractCredits( $path, array $info ) {
$credits = [
'path' => $path,
'type' => isset( $info['type'] ) ? $info['type'] : 'other',
];
foreach ( self::$creditsAttributes as $attr ) {
if ( isset( $info[$attr] ) ) {
$credits[$attr] = $info[$attr];
}
}
$name = $credits['name'];
// If someone is loading the same thing twice, throw
// a nice error (T121493)
if ( isset( $this->credits[$name] ) ) {
$firstPath = $this->credits[$name]['path'];
$secondPath = $credits['path'];
throw new Exception( "It was attempted to load $name twice, from $firstPath and $secondPath." );
}
$this->credits[$name] = $credits;
$this->globals['wgExtensionCredits'][$credits['type']][] = $credits;
}
/**
* Set configuration settings
* @todo In the future, this should be done via Config interfaces
*
* @param array $info
*/
protected function extractConfig( array $info ) {
if ( isset( $info['config'] ) ) {
if ( isset( $info['config']['_prefix'] ) ) {
$prefix = $info['config']['_prefix'];
unset( $info['config']['_prefix'] );
} else {
$prefix = 'wg';
}
foreach ( $info['config'] as $key => $val ) {
if ( $key[0] !== '@' ) {
$this->globals["$prefix$key"] = $val;
}
}
}
}
protected function extractParserTestFiles( $dir, array $info ) {
if ( isset( $info['ParserTestFiles'] ) ) {
foreach ( $info['ParserTestFiles'] as $path ) {
$this->globals['wgParserTestFiles'][] = "$dir/$path";
}
}
}
/**
* @param string $path
* @param string $name
* @param array $value
* @param array &$array
* @throws InvalidArgumentException
*/
protected function storeToArray( $path, $name, $value, &$array ) {
if ( !is_array( $value ) ) {
throw new InvalidArgumentException( "The value for '$name' should be an array (from $path)" );
}
if ( isset( $array[$name] ) ) {
$array[$name] = array_merge_recursive( $array[$name], $value );
} else {
$array[$name] = $value;
}
}
public function getExtraAutoloaderPaths( $dir, array $info ) {
$paths = [];
if ( isset( $info['load_composer_autoloader'] ) && $info['load_composer_autoloader'] === true ) {
$path = "$dir/vendor/autoload.php";
if ( file_exists( $path ) ) {
$paths[] = $path;
}
}
return $paths;
}
}