includes/registration/ExtensionProcessor.php

   1 <?php
   2
   3 class ExtensionProcessor implements Processor {
   4
   5         /**
   6          * Keys that should be set to $GLOBALS
   7          *
   8          * @var array
   9          */
  10         protected static $globalSettings = [
  11                 'ActionFilteredLogs',
  12                 'Actions',
  13                 'AddGroups',
  14                 'APIFormatModules',
  15                 'APIListModules',
  16                 'APIMetaModules',
  17                 'APIModules',
  18                 'APIPropModules',
  19                 'AuthManagerAutoConfig',
  20                 'AvailableRights',
  21                 'CentralIdLookupProviders',
  22                 'ChangeCredentialsBlacklist',
  23                 'ConfigRegistry',
  24                 'ContentHandlers',
  25                 'DefaultUserOptions',
  26                 'ExtensionEntryPointListFiles',
  27                 'ExtensionFunctions',
  28                 'FeedClasses',
  29                 'FileExtensions',
  30                 'FilterLogTypes',
  31                 'GrantPermissionGroups',
  32                 'GrantPermissions',
  33                 'GroupPermissions',
  34                 'GroupsAddToSelf',
  35                 'GroupsRemoveFromSelf',
  36                 'HiddenPrefs',
  37                 'ImplicitGroups',
  38                 'JobClasses',
  39                 'LogActions',
  40                 'LogActionsHandlers',
  41                 'LogHeaders',
  42                 'LogNames',
  43                 'LogRestrictions',
  44                 'LogTypes',
  45                 'MediaHandlers',
  46                 'PasswordPolicy',
  47                 'RateLimits',
  48                 'RecentChangesFlags',
  49                 'RemoveCredentialsBlacklist',
  50                 'RemoveGroups',
  51                 'ResourceLoaderLESSVars',
  52                 'ResourceLoaderSources',
  53                 'RevokePermissions',
  54                 'SessionProviders',
  55                 'SpecialPages',
  56                 'ValidSkinNames',
  57         ];
  58
  59         /**
  60          * Mapping of global settings to their specific merge strategies.
  61          *
  62          * @see ExtensionRegistry::exportExtractedData
  63          * @see getExtractedInfo
  64          * @var array
  65          */
  66         protected static $mergeStrategies = [
  67                 'wgAuthManagerAutoConfig' => 'array_plus_2d',
  68                 'wgCapitalLinkOverrides' => 'array_plus',
  69                 'wgExtensionCredits' => 'array_merge_recursive',
  70                 'wgExtraGenderNamespaces' => 'array_plus',
  71                 'wgGrantPermissions' => 'array_plus_2d',
  72                 'wgGroupPermissions' => 'array_plus_2d',
  73                 'wgHooks' => 'array_merge_recursive',
  74                 'wgNamespaceContentModels' => 'array_plus',
  75                 'wgNamespaceProtection' => 'array_plus',
  76                 'wgNamespacesWithSubpages' => 'array_plus',
  77                 'wgPasswordPolicy' => 'array_merge_recursive',
  78                 'wgRateLimits' => 'array_plus_2d',
  79                 'wgRevokePermissions' => 'array_plus_2d',
  80         ];
  81
  82         /**
  83          * Keys that are part of the extension credits
  84          *
  85          * @var array
  86          */
  87         protected static $creditsAttributes = [
  88                 'name',
  89                 'namemsg',
  90                 'author',
  91                 'version',
  92                 'url',
  93                 'description',
  94                 'descriptionmsg',
  95                 'license-name',
  96         ];
  97
  98         /**
  99          * Things that are not 'attributes', but are not in
 100          * $globalSettings or $creditsAttributes.
 101          *
 102          * @var array
 103          */
 104         protected static $notAttributes = [
 105                 'callback',
 106                 'Hooks',
 107                 'namespaces',
 108                 'ResourceFileModulePaths',
 109                 'ResourceModules',
 110                 'ResourceModuleSkinStyles',
 111                 'ExtensionMessagesFiles',
 112                 'MessagesDirs',
 113                 'type',
 114                 'config',
 115                 'config_prefix',
 116                 'ServiceWiringFiles',
 117                 'ParserTestFiles',
 118                 'AutoloadClasses',
 119                 'manifest_version',
 120                 'load_composer_autoloader',
 121         ];
 122
 123         /**
 124          * Stuff that is going to be set to $GLOBALS
 125          *
 126          * Some keys are pre-set to arrays so we can += to them
 127          *
 128          * @var array
 129          */
 130         protected $globals = [
 131                 'wgExtensionMessagesFiles' => [],
 132                 'wgMessagesDirs' => [],
 133         ];
 134
 135         /**
 136          * Things that should be define()'d
 137          *
 138          * @var array
 139          */
 140         protected $defines = [];
 141
 142         /**
 143          * Things to be called once registration of these extensions are done
 144          * keyed by the name of the extension that it belongs to
 145          *
 146          * @var callable[]
 147          */
 148         protected $callbacks = [];
 149
 150         /**
 151          * @var array
 152          */
 153         protected $credits = [];
 154
 155         /**
 156          * Any thing else in the $info that hasn't
 157          * already been processed
 158          *
 159          * @var array
 160          */
 161         protected $attributes = [];
 162
 163         /**
 164          * @param string $path
 165          * @param array $info
 166          * @param int $version manifest_version for info
 167          * @return array
 168          */
 169         public function extractInfo( $path, array $info, $version ) {
 170                 $dir = dirname( $path );
 171                 if ( $version === 2 ) {
 172                         $this->extractConfig2( $info, $dir );
 173                 } else {
 174                         // $version === 1
 175                         $this->extractConfig1( $info );
 176                 }
 177                 $this->extractHooks( $info );
 178                 $this->extractExtensionMessagesFiles( $dir, $info );
 179                 $this->extractMessagesDirs( $dir, $info );
 180                 $this->extractNamespaces( $info );
 181                 $this->extractResourceLoaderModules( $dir, $info );
 182                 $this->extractServiceWiringFiles( $dir, $info );
 183                 $this->extractParserTestFiles( $dir, $info );
 184                 $name = $this->extractCredits( $path, $info );
 185                 if ( isset( $info['callback'] ) ) {
 186                         $this->callbacks[$name] = $info['callback'];
 187                 }
 188
 189                 foreach ( $info as $key => $val ) {
 190                         if ( in_array( $key, self::$globalSettings ) ) {
 191                                 $this->storeToArray( $path, "wg$key", $val, $this->globals );
 192                         // Ignore anything that starts with a @
 193                         } elseif ( $key[0] !== '@' && !in_array( $key, self::$notAttributes )
 194                                 && !in_array( $key, self::$creditsAttributes )
 195                         ) {
 196                                 $this->storeToArray( $path, $key, $val, $this->attributes );
 197                         }
 198                 }
 199         }
 200
 201         public function getExtractedInfo() {
 202                 // Make sure the merge strategies are set
 203                 foreach ( $this->globals as $key => $val ) {
 204                         if ( isset( self::$mergeStrategies[$key] ) ) {
 205                                 $this->globals[$key][ExtensionRegistry::MERGE_STRATEGY] = self::$mergeStrategies[$key];
 206                         }
 207                 }
 208
 209                 return [
 210                         'globals' => $this->globals,
 211                         'defines' => $this->defines,
 212                         'callbacks' => $this->callbacks,
 213                         'credits' => $this->credits,
 214                         'attributes' => $this->attributes,
 215                 ];
 216         }
 217
 218         public function getRequirements( array $info ) {
 219                 return isset( $info['requires'] ) ? $info['requires'] : [];
 220         }
 221
 222         protected function extractHooks( array $info ) {
 223                 if ( isset( $info['Hooks'] ) ) {
 224                         foreach ( $info['Hooks'] as $name => $value ) {
 225                                 if ( is_array( $value ) ) {
 226                                         foreach ( $value as $callback ) {
 227                                                 $this->globals['wgHooks'][$name][] = $callback;
 228                                         }
 229                                 } else {
 230                                         $this->globals['wgHooks'][$name][] = $value;
 231                                 }
 232                         }
 233                 }
 234         }
 235
 236         /**
 237          * Register namespaces with the appropriate global settings
 238          *
 239          * @param array $info
 240          */
 241         protected function extractNamespaces( array $info ) {
 242                 if ( isset( $info['namespaces'] ) ) {
 243                         foreach ( $info['namespaces'] as $ns ) {
 244                                 $id = $ns['id'];
 245                                 $this->defines[$ns['constant']] = $id;
 246                                 if ( !( isset( $ns['conditional'] ) && $ns['conditional'] ) ) {
 247                                         // If it is not conditional, register it
 248                                         $this->attributes['ExtensionNamespaces'][$id] = $ns['name'];
 249                                 }
 250                                 if ( isset( $ns['gender'] ) ) {
 251                                         $this->globals['wgExtraGenderNamespaces'][$id] = $ns['gender'];
 252                                 }
 253                                 if ( isset( $ns['subpages'] ) && $ns['subpages'] ) {
 254                                         $this->globals['wgNamespacesWithSubpages'][$id] = true;
 255                                 }
 256                                 if ( isset( $ns['content'] ) && $ns['content'] ) {
 257                                         $this->globals['wgContentNamespaces'][] = $id;
 258                                 }
 259                                 if ( isset( $ns['defaultcontentmodel'] ) ) {
 260                                         $this->globals['wgNamespaceContentModels'][$id] = $ns['defaultcontentmodel'];
 261                                 }
 262                                 if ( isset( $ns['protection'] ) ) {
 263                                         $this->globals['wgNamespaceProtection'][$id] = $ns['protection'];
 264                                 }
 265                                 if ( isset( $ns['capitallinkoverride'] ) ) {
 266                                         $this->globals['wgCapitalLinkOverrides'][$id] = $ns['capitallinkoverride'];
 267                                 }
 268                         }
 269                 }
 270         }
 271
 272         protected function extractResourceLoaderModules( $dir, array $info ) {
 273                 $defaultPaths = isset( $info['ResourceFileModulePaths'] )
 274                         ? $info['ResourceFileModulePaths']
 275                         : false;
 276                 if ( isset( $defaultPaths['localBasePath'] ) ) {
 277                         if ( $defaultPaths['localBasePath'] === '' ) {
 278                                 // Avoid double slashes (e.g. /extensions/Example//path)
 279                                 $defaultPaths['localBasePath'] = $dir;
 280                         } else {
 281                                 $defaultPaths['localBasePath'] = "$dir/{$defaultPaths['localBasePath']}";
 282                         }
 283                 }
 284
 285                 foreach ( [ 'ResourceModules', 'ResourceModuleSkinStyles' ] as $setting ) {
 286                         if ( isset( $info[$setting] ) ) {
 287                                 foreach ( $info[$setting] as $name => $data ) {
 288                                         if ( isset( $data['localBasePath'] ) ) {
 289                                                 if ( $data['localBasePath'] === '' ) {
 290                                                         // Avoid double slashes (e.g. /extensions/Example//path)
 291                                                         $data['localBasePath'] = $dir;
 292                                                 } else {
 293                                                         $data['localBasePath'] = "$dir/{$data['localBasePath']}";
 294                                                 }
 295                                         }
 296                                         if ( $defaultPaths ) {
 297                                                 $data += $defaultPaths;
 298                                         }
 299                                         $this->globals["wg$setting"][$name] = $data;
 300                                 }
 301                         }
 302                 }
 303         }
 304
 305         protected function extractExtensionMessagesFiles( $dir, array $info ) {
 306                 if ( isset( $info['ExtensionMessagesFiles'] ) ) {
 307                         $this->globals["wgExtensionMessagesFiles"] += array_map( function( $file ) use ( $dir ) {
 308                                 return "$dir/$file";
 309                         }, $info['ExtensionMessagesFiles'] );
 310                 }
 311         }
 312
 313         /**
 314          * Set message-related settings, which need to be expanded to use
 315          * absolute paths
 316          *
 317          * @param string $dir
 318          * @param array $info
 319          */
 320         protected function extractMessagesDirs( $dir, array $info ) {
 321                 if ( isset( $info['MessagesDirs'] ) ) {
 322                         foreach ( $info['MessagesDirs'] as $name => $files ) {
 323                                 foreach ( (array)$files as $file ) {
 324                                         $this->globals["wgMessagesDirs"][$name][] = "$dir/$file";
 325                                 }
 326                         }
 327                 }
 328         }
 329
 330         /**
 331          * @param string $path
 332          * @param array $info
 333          * @return string Name of thing
 334          * @throws Exception
 335          */
 336         protected function extractCredits( $path, array $info ) {
 337                 $credits = [
 338                         'path' => $path,
 339                         'type' => isset( $info['type'] ) ? $info['type'] : 'other',
 340                 ];
 341                 foreach ( self::$creditsAttributes as $attr ) {
 342                         if ( isset( $info[$attr] ) ) {
 343                                 $credits[$attr] = $info[$attr];
 344                         }
 345                 }
 346
 347                 $name = $credits['name'];
 348
 349                 // If someone is loading the same thing twice, throw
 350                 // a nice error (T121493)
 351                 if ( isset( $this->credits[$name] ) ) {
 352                         $firstPath = $this->credits[$name]['path'];
 353                         $secondPath = $credits['path'];
 354                         throw new Exception( "It was attempted to load $name twice, from $firstPath and $secondPath." );
 355                 }
 356
 357                 $this->credits[$name] = $credits;
 358                 $this->globals['wgExtensionCredits'][$credits['type']][] = $credits;
 359
 360                 return $name;
 361         }
 362
 363         /**
 364          * Set configuration settings for manifest_version == 1
 365          * @todo In the future, this should be done via Config interfaces
 366          *
 367          * @param array $info
 368          */
 369         protected function extractConfig1( array $info ) {
 370                 if ( isset( $info['config'] ) ) {
 371                         if ( isset( $info['config']['_prefix'] ) ) {
 372                                 $prefix = $info['config']['_prefix'];
 373                                 unset( $info['config']['_prefix'] );
 374                         } else {
 375                                 $prefix = 'wg';
 376                         }
 377                         foreach ( $info['config'] as $key => $val ) {
 378                                 if ( $key[0] !== '@' ) {
 379                                         $this->globals["$prefix$key"] = $val;
 380                                 }
 381                         }
 382                 }
 383         }
 384
 385         /**
 386          * Set configuration settings for manifest_version == 2
 387          * @todo In the future, this should be done via Config interfaces
 388          *
 389          * @param array $info
 390          * @param string $dir
 391          */
 392         protected function extractConfig2( array $info, $dir ) {
 393                 if ( isset( $info['config_prefix'] ) ) {
 394                         $prefix = $info['config_prefix'];
 395                 } else {
 396                         $prefix = 'wg';
 397                 }
 398                 if ( isset( $info['config'] ) ) {
 399                         foreach ( $info['config'] as $key => $data ) {
 400                                 $value = $data['value'];
 401                                 if ( isset( $data['merge_strategy'] ) ) {
 402                                         $value[ExtensionRegistry::MERGE_STRATEGY] = $data['merge_strategy'];
 403                                 }
 404                                 if ( isset( $data['path'] ) && $data['path'] ) {
 405                                         $value = "$dir/$value";
 406                                 }
 407                                 $this->globals["$prefix$key"] = $value;
 408                         }
 409                 }
 410         }
 411
 412         protected function extractServiceWiringFiles( $dir, array $info ) {
 413                 if ( isset( $info['ServiceWiringFiles'] ) ) {
 414                         foreach ( $info['ServiceWiringFiles'] as $path ) {
 415                                 $this->globals['wgServiceWiringFiles'][] = "$dir/$path";
 416                         }
 417                 }
 418         }
 419
 420         protected function extractParserTestFiles( $dir, array $info ) {
 421                 if ( isset( $info['ParserTestFiles'] ) ) {
 422                         foreach ( $info['ParserTestFiles'] as $path ) {
 423                                 $this->globals['wgParserTestFiles'][] = "$dir/$path";
 424                         }
 425                 }
 426         }
 427
 428         /**
 429          * @param string $path
 430          * @param string $name
 431          * @param array $value
 432          * @param array &$array
 433          * @throws InvalidArgumentException
 434          */
 435         protected function storeToArray( $path, $name, $value, &$array ) {
 436                 if ( !is_array( $value ) ) {
 437                         throw new InvalidArgumentException( "The value for '$name' should be an array (from $path)" );
 438                 }
 439                 if ( isset( $array[$name] ) ) {
 440                         $array[$name] = array_merge_recursive( $array[$name], $value );
 441                 } else {
 442                         $array[$name] = $value;
 443                 }
 444         }
 445
 446         public function getExtraAutoloaderPaths( $dir, array $info ) {
 447                 $paths = [];
 448                 if ( isset( $info['load_composer_autoloader'] ) && $info['load_composer_autoloader'] === true ) {
 449                         $path = "$dir/vendor/autoload.php";
 450                         if ( file_exists( $path ) ) {
 451                                 $paths[] = $path;
 452                         }
 453                 }
 454                 return $paths;
 455         }
 456 }