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| 1 | <?php |
| 2 | /** |
| 3 | * Utility functions for the Cargo extension. |
| 4 | * |
| 5 | * @author Yaron Koren |
| 6 | * @ingroup Cargo |
| 7 | */ |
| 8 | |
| 9 | use MediaWiki\Linker\LinkRenderer; |
| 10 | use MediaWiki\Linker\LinkTarget; |
| 11 | use MediaWiki\MediaWikiServices; |
| 12 | |
| 13 | class CargoUtils { |
| 14 | |
| 15 | private static $CargoDB = null; |
| 16 | |
| 17 | public static function getDB() { |
| 18 | if ( self::$CargoDB != null && self::$CargoDB->isOpen() ) { |
| 19 | return self::$CargoDB; |
| 20 | } |
| 21 | |
| 22 | global $wgDBuser, $wgDBpassword, $wgDBprefix, $wgDBservers; |
| 23 | global $wgCargoDBserver, $wgCargoDBname, $wgCargoDBuser, $wgCargoDBpassword, $wgCargoDBprefix, $wgCargoDBtype; |
| 24 | |
| 25 | $services = MediaWikiServices::getInstance(); |
| 26 | $lb = $services->getDBLoadBalancer(); |
| 27 | $dbr = $lb->getConnectionRef( DB_REPLICA ); |
| 28 | $server = $dbr->getServer(); |
| 29 | $name = $dbr->getDBname(); |
| 30 | $type = $dbr->getType(); |
| 31 | |
| 32 | // We need $wgCargoDBtype for other functions. |
| 33 | if ( $wgCargoDBtype === null ) { |
| 34 | $wgCargoDBtype = $type; |
| 35 | } |
| 36 | $dbServer = $wgCargoDBserver === null ? $server : $wgCargoDBserver; |
| 37 | $dbName = $wgCargoDBname === null ? $name : $wgCargoDBname; |
| 38 | |
| 39 | // Server (host), db name, and db type can be retrieved from $dbr via |
| 40 | // public methods, but username and password cannot. If these values are |
| 41 | // not set for Cargo, get them from either $wgDBservers or wgDBuser and |
| 42 | // $wgDBpassword, depending on whether or not there are multiple DB servers. |
| 43 | if ( $wgCargoDBuser !== null ) { |
| 44 | $dbUsername = $wgCargoDBuser; |
| 45 | } elseif ( is_array( $wgDBservers ) && isset( $wgDBservers[0] ) ) { |
| 46 | $dbUsername = $wgDBservers[0]['user']; |
| 47 | } else { |
| 48 | $dbUsername = $wgDBuser; |
| 49 | } |
| 50 | if ( $wgCargoDBpassword !== null ) { |
| 51 | $dbPassword = $wgCargoDBpassword; |
| 52 | } elseif ( is_array( $wgDBservers ) && isset( $wgDBservers[0] ) ) { |
| 53 | $dbPassword = $wgDBservers[0]['password']; |
| 54 | } else { |
| 55 | $dbPassword = $wgDBpassword; |
| 56 | } |
| 57 | |
| 58 | if ( $wgCargoDBprefix !== null ) { |
| 59 | $dbTablePrefix = $wgCargoDBprefix; |
| 60 | } else { |
| 61 | $dbTablePrefix = $wgDBprefix . 'cargo__'; |
| 62 | } |
| 63 | |
| 64 | $params = [ |
| 65 | 'host' => $dbServer, |
| 66 | 'user' => $dbUsername, |
| 67 | 'password' => $dbPassword, |
| 68 | 'dbname' => $dbName, |
| 69 | 'tablePrefix' => $dbTablePrefix, |
| 70 | ]; |
| 71 | |
| 72 | if ( $type === 'sqlite' ) { |
| 73 | $params['dbFilePath'] = $dbr->getDbFilePath(); |
| 74 | } elseif ( $type === 'postgres' ) { |
| 75 | global $wgDBport; |
| 76 | // @TODO - a $wgCargoDBport variable is still needed. |
| 77 | $params['port'] = $wgDBport; |
| 78 | } |
| 79 | |
| 80 | if ( method_exists( $services, 'getDatabaseFactory' ) ) { |
| 81 | // MW 1.39+ |
| 82 | self::$CargoDB = $services->getDatabaseFactory()->create( $wgCargoDBtype, $params ); |
| 83 | } else { |
| 84 | self::$CargoDB = Database::factory( $wgCargoDBtype, $params ); |
| 85 | } |
| 86 | return self::$CargoDB; |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Gets a page property for the specified page ID and property name. |
| 91 | */ |
| 92 | public static function getPageProp( $pageID, $pageProp ) { |
| 93 | $lb = MediaWikiServices::getInstance()->getDBLoadBalancer(); |
| 94 | $dbr = $lb->getConnectionRef( DB_REPLICA ); |
| 95 | $value = $dbr->selectField( 'page_props', [ |
| 96 | 'pp_value' |
| 97 | ], [ |
| 98 | 'pp_page' => $pageID, |
| 99 | 'pp_propname' => $pageProp, |
| 100 | ] |
| 101 | ); |
| 102 | |
| 103 | if ( !$value ) { |
| 104 | return null; |
| 105 | } |
| 106 | |
| 107 | return $value; |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * Similar to getPageProp(). |
| 112 | */ |
| 113 | public static function getAllPageProps( $pageProp ) { |
| 114 | $lb = MediaWikiServices::getInstance()->getDBLoadBalancer(); |
| 115 | $dbr = $lb->getConnectionRef( DB_REPLICA ); |
| 116 | $res = $dbr->select( 'page_props', [ |
| 117 | 'pp_page', |
| 118 | 'pp_value' |
| 119 | ], [ |
| 120 | 'pp_propname' => $pageProp |
| 121 | ] |
| 122 | ); |
| 123 | |
| 124 | $pagesPerValue = []; |
| 125 | foreach ( $res as $row ) { |
| 126 | $pageID = $row->pp_page; |
| 127 | $pageValue = $row->pp_value; |
| 128 | if ( array_key_exists( $pageValue, $pagesPerValue ) ) { |
| 129 | $pagesPerValue[$pageValue][] = $pageID; |
| 130 | } else { |
| 131 | $pagesPerValue[$pageValue] = [ $pageID ]; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | return $pagesPerValue; |
| 136 | } |
| 137 | |
| 138 | /** |
| 139 | * Gets the template page where this table is defined - |
| 140 | * hopefully there's exactly one of them. |
| 141 | */ |
| 142 | public static function getTemplateIDForDBTable( $tableName ) { |
| 143 | $lb = MediaWikiServices::getInstance()->getDBLoadBalancer(); |
| 144 | $dbr = $lb->getConnectionRef( DB_REPLICA ); |
| 145 | $page = $dbr->selectField( 'page_props', [ |
| 146 | 'pp_page' |
| 147 | ], [ |
| 148 | 'pp_value' => $tableName, |
| 149 | 'pp_propname' => 'CargoTableName' |
| 150 | ] |
| 151 | ); |
| 152 | if ( !$page ) { |
| 153 | return null; |
| 154 | } |
| 155 | return $page; |
| 156 | } |
| 157 | |
| 158 | public static function formatError( $errorString ) { |
| 159 | return Html::element( 'div', [ 'class' => 'error' ], $errorString ); |
| 160 | } |
| 161 | |
| 162 | public static function displayErrorMessage( OutputPage $out, Message $message ) { |
| 163 | $out->wrapWikiTextAsInterface( 'error', $message->plain() ); |
| 164 | } |
| 165 | |
| 166 | public static function getTables() { |
| 167 | $tableNames = []; |
| 168 | $lb = MediaWikiServices::getInstance()->getDBLoadBalancer(); |
| 169 | $dbr = $lb->getConnectionRef( DB_REPLICA ); |
| 170 | $res = $dbr->select( 'cargo_tables', 'main_table' ); |
| 171 | foreach ( $res as $row ) { |
| 172 | $tableName = $row->main_table; |
| 173 | // Skip "replacement" tables. |
| 174 | if ( substr( $tableName, -6 ) == '__NEXT' ) { |
| 175 | continue; |
| 176 | } |
| 177 | $tableNames[] = $tableName; |
| 178 | } |
| 179 | return $tableNames; |
| 180 | } |
| 181 | |
| 182 | public static function getParentTables( $tableName ) { |
| 183 | $parentTables = []; |
| 184 | $lb = MediaWikiServices::getInstance()->getDBLoadBalancer(); |
| 185 | $dbr = $lb->getConnectionRef( DB_REPLICA ); |
| 186 | $res = $dbr->select( 'cargo_tables', [ 'template_id', 'main_table' ] ); |
| 187 | foreach ( $res as $row ) { |
| 188 | if ( $tableName == $row->main_table ) { |
| 189 | $parentTables = self::getPageProp( $row->template_id, 'CargoParentTables' ); |
| 190 | } |
| 191 | } |
| 192 | if ( $parentTables ) { |
| 193 | return unserialize( $parentTables ); |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | public static function getChildTables( $tableName ) { |
| 198 | $childTables = []; |
| 199 | $allParentTablesInfo = self::getAllPageProps( 'CargoParentTables' ); |
| 200 | foreach ( $allParentTablesInfo as $parentTablesInfoStr => $templateIDs ) { |
| 201 | $parentTablesInfo = unserialize( $parentTablesInfoStr ); |
| 202 | foreach ( $parentTablesInfo as $parentTableInfo ) { |
| 203 | $remoteTable = $parentTableInfo['Name']; |
| 204 | if ( $remoteTable !== $tableName ) { |
| 205 | continue; |
| 206 | } |
| 207 | $localField = $parentTableInfo['_localField']; |
| 208 | $remoteField = $parentTableInfo['_remoteField']; |
| 209 | // There should only ever be one ID here... right? |
| 210 | foreach ( $templateIDs as $templateID ) { |
| 211 | $childTable = self::getPageProp( $templateID, 'CargoTableName' ); |
| 212 | $childTables[] = [ |
| 213 | 'childTable' => $childTable, |
| 214 | 'childField' => $localField, |
| 215 | 'parentTable' => $remoteTable, |
| 216 | 'parentField' => $remoteField |
| 217 | ]; |
| 218 | } |
| 219 | } |
| 220 | } |
| 221 | return $childTables; |
| 222 | } |
| 223 | |
| 224 | public static function getDrilldownTabsParams( $tableName ) { |
| 225 | $drilldownTabs = []; |
| 226 | $lb = MediaWikiServices::getInstance()->getDBLoadBalancer(); |
| 227 | $dbr = $lb->getConnectionRef( DB_REPLICA ); |
| 228 | $res = $dbr->select( 'cargo_tables', [ 'template_id', 'main_table' ] ); |
| 229 | foreach ( $res as $row ) { |
| 230 | if ( $tableName == $row->main_table ) { |
| 231 | $drilldownTabs = self::getPageProp( $row->template_id, 'CargoDrilldownTabsParams' ); |
| 232 | } |
| 233 | } |
| 234 | if ( $drilldownTabs ) { |
| 235 | return unserialize( $drilldownTabs ); |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | public static function getTableSchemas( $tableNames ) { |
| 240 | $mainTableNames = []; |
| 241 | foreach ( $tableNames as $tableName ) { |
| 242 | if ( strpos( $tableName, '__' ) !== false && |
| 243 | strpos( $tableName, '__NEXT' ) === false ) { |
| 244 | // We just want the first part of it. |
| 245 | $tableNameParts = explode( '__', $tableName ); |
| 246 | $tableName = $tableNameParts[0]; |
| 247 | } |
| 248 | if ( !in_array( $tableName, $mainTableNames ) ) { |
| 249 | $mainTableNames[] = $tableName; |
| 250 | } |
| 251 | } |
| 252 | $tableSchemas = []; |
| 253 | $lb = MediaWikiServices::getInstance()->getDBLoadBalancer(); |
| 254 | $dbr = $lb->getConnectionRef( DB_REPLICA ); |
| 255 | $res = $dbr->select( 'cargo_tables', [ 'main_table', 'table_schema' ], |
| 256 | [ 'main_table' => $mainTableNames ] ); |
| 257 | foreach ( $res as $row ) { |
| 258 | $tableName = $row->main_table; |
| 259 | $tableSchemaString = $row->table_schema; |
| 260 | $tableSchemas[$tableName] = CargoTableSchema::newFromDBString( $tableSchemaString ); |
| 261 | } |
| 262 | |
| 263 | // Validate the table names. |
| 264 | if ( count( $tableSchemas ) < count( $mainTableNames ) ) { |
| 265 | foreach ( $mainTableNames as $tableName ) { |
| 266 | if ( !array_key_exists( $tableName, $tableSchemas ) ) { |
| 267 | throw new MWException( wfMessage( "cargo-unknowntable", $tableName )->parse() ); |
| 268 | } |
| 269 | } |
| 270 | } |
| 271 | |
| 272 | return $tableSchemas; |
| 273 | } |
| 274 | |
| 275 | /** |
| 276 | * Get the Cargo table for the passed-in template specified via |
| 277 | * either #cargo_declare or #cargo_attach, if the template has a |
| 278 | * call to either one. |
| 279 | */ |
| 280 | public static function getTableNameForTemplate( $templateTitle ) { |
| 281 | $templatePageID = $templateTitle->getArticleID(); |
| 282 | $declaredTableName = self::getPageProp( $templatePageID, 'CargoTableName' ); |
| 283 | if ( $declaredTableName !== null ) { |
| 284 | return [ $declaredTableName, true ]; |
| 285 | } |
| 286 | $attachedTableName = self::getPageProp( $templatePageID, 'CargoAttachedTable' ); |
| 287 | return [ $attachedTableName, false ]; |
| 288 | } |
| 289 | |
| 290 | /** |
| 291 | * Make the alias different from table name to avoid removal of aliases (when passed |
| 292 | * in to Mediawiki's select() call) if the alias and table name are the same. |
| 293 | * Aliases are needed because sometimes the same table can be joined more than once, if |
| 294 | * it serves as two different parent tables |
| 295 | * @param string $tableName |
| 296 | * @return string |
| 297 | */ |
| 298 | public static function makeDifferentAlias( $tableName ) { |
| 299 | $tableAlias = $tableName . "_alias"; |
| 300 | return $tableAlias; |
| 301 | } |
| 302 | |
| 303 | /** |
| 304 | * Splits a string by the delimiter, but ensures that parenthesis, separators |
| 305 | * and "the other quote" (single quote in a double quoted string or double |
| 306 | * quote in a single quoted string) inside a quoted string are not considered |
| 307 | * lexically. |
| 308 | * @param string $delimiter The delimiter to split by. |
| 309 | * @param string $string The string to split. |
| 310 | * @param bool $includeBlankValues Whether to include blank values in the returned array. |
| 311 | * @return string[] Array of substrings (with or without blank values). |
| 312 | * @throws MWException On unmatched quotes or incomplete escape sequences. |
| 313 | */ |
| 314 | public static function smartSplit( $delimiter, $string, $includeBlankValues = false ) { |
| 315 | if ( $string == '' ) { |
| 316 | return []; |
| 317 | } |
| 318 | |
| 319 | $ignoreNextChar = false; |
| 320 | $returnValues = []; |
| 321 | $numOpenParentheses = 0; |
| 322 | $curReturnValue = ''; |
| 323 | $strLength = strlen( $string ); |
| 324 | for ( $i = 0; $i < $strLength; $i++ ) { |
| 325 | $curChar = $string[$i]; |
| 326 | |
| 327 | if ( $ignoreNextChar ) { |
| 328 | // If previous character was a backslash, |
| 329 | // ignore the current one, since it's escaped. |
| 330 | // What if this one is a backslash too? |
| 331 | // Doesn't matter - it's escaped. |
| 332 | $ignoreNextChar = false; |
| 333 | } elseif ( $curChar == '(' ) { |
| 334 | $numOpenParentheses++; |
| 335 | } elseif ( $curChar == ')' ) { |
| 336 | $numOpenParentheses--; |
| 337 | } elseif ( $curChar == '\'' || $curChar == '"' ) { |
| 338 | $pos = self::findQuotedStringEnd( $string, $curChar, $i + 1 ); |
| 339 | if ( $pos === false ) { |
| 340 | throw new MWException( "Error: unmatched quote in SQL string constant." ); |
| 341 | } |
| 342 | $curReturnValue .= substr( $string, $i, $pos - $i ); |
| 343 | $i = $pos; |
| 344 | } elseif ( $curChar == '\\' ) { |
| 345 | $ignoreNextChar = true; |
| 346 | } |
| 347 | |
| 348 | if ( $curChar == $delimiter && $numOpenParentheses == 0 ) { |
| 349 | $returnValues[] = trim( $curReturnValue ); |
| 350 | $curReturnValue = ''; |
| 351 | } else { |
| 352 | $curReturnValue .= $curChar; |
| 353 | } |
| 354 | } |
| 355 | $returnValues[] = trim( $curReturnValue ); |
| 356 | |
| 357 | if ( $ignoreNextChar ) { |
| 358 | throw new MWException( "Error: incomplete escape sequence." ); |
| 359 | } |
| 360 | |
| 361 | if ( $includeBlankValues ) { |
| 362 | return $returnValues; |
| 363 | } |
| 364 | |
| 365 | // Remove empty strings (but not other quasi-empty values, like '0') and re-key the array. |
| 366 | $noEmptyStrings = static function ( $s ) { |
| 367 | return $s !== ''; |
| 368 | }; |
| 369 | return array_values( array_filter( $returnValues, $noEmptyStrings ) ); |
| 370 | } |
| 371 | |
| 372 | /** |
| 373 | * Finds the end of a quoted string. |
| 374 | */ |
| 375 | public static function findQuotedStringEnd( $string, $quoteChar, $pos ) { |
| 376 | $ignoreNextChar = false; |
| 377 | $strLength = strlen( $string ); |
| 378 | for ( $i = $pos; $i < $strLength; $i++ ) { |
| 379 | $curChar = $string[$i]; |
| 380 | if ( $ignoreNextChar ) { |
| 381 | $ignoreNextChar = false; |
| 382 | } elseif ( $curChar == $quoteChar ) { |
| 383 | if ( $i + 1 < $strLength && $string[$i + 1] == $quoteChar ) { |
| 384 | $i++; |
| 385 | } else { |
| 386 | return $i; |
| 387 | } |
| 388 | } elseif ( $curChar == '\\' ) { |
| 389 | $ignoreNextChar = true; |
| 390 | } |
| 391 | } |
| 392 | if ( $ignoreNextChar ) { |
| 393 | throw new MWException( "Error: incomplete escape sequence." ); |
| 394 | } |
| 395 | return false; |
| 396 | } |
| 397 | |
| 398 | /** |
| 399 | * Deletes text within quotes and raises and exception if a quoted string |
| 400 | * is not closed. |
| 401 | */ |
| 402 | public static function removeQuotedStrings( ?string $string ): string { |
| 403 | if ( $string === null ) { |
| 404 | return ''; |
| 405 | } |
| 406 | |
| 407 | $noQuotesPattern = '/("|\')([^\\1\\\\]|\\\\.)*?\\1/s'; |
| 408 | $string = preg_replace( $noQuotesPattern, '', $string ); |
| 409 | if ( strpos( $string, '"' ) !== false || strpos( $string, "'" ) !== false ) { |
| 410 | throw new MWException( "Error: unclosed string literal." ); |
| 411 | } |
| 412 | return $string; |
| 413 | } |
| 414 | |
| 415 | /** |
| 416 | * Get rid of the "File:" or "Image:" (in the wiki's language) at the |
| 417 | * beginning of a file name, if it's there. |
| 418 | */ |
| 419 | public static function removeNamespaceFromFileName( $fileName ) { |
| 420 | $fileTitle = Title::newFromText( $fileName, NS_FILE ); |
| 421 | if ( $fileTitle == null ) { |
| 422 | return null; |
| 423 | } |
| 424 | return $fileTitle->getText(); |
| 425 | } |
| 426 | |
| 427 | /** |
| 428 | * Generates a Regular Expression to match $fieldName in a SQL string. |
| 429 | * Allows for $ as valid identifier character. |
| 430 | */ |
| 431 | public static function getSQLFieldPattern( $fieldName, $closePattern = true ) { |
| 432 | $fieldName = str_replace( '$', '\$', $fieldName ); |
| 433 | $pattern = '/([^\w$.,]|^)' . $fieldName; |
| 434 | return $pattern . ( $closePattern ? '([^\w$]|$)/' : '' ); |
| 435 | } |
| 436 | |
| 437 | /** |
| 438 | * Generates a Regular Expression to match $tableName.$fieldName in a |
| 439 | * SQL string. Allows for $ as valid identifier character. |
| 440 | */ |
| 441 | public static function getSQLTableAndFieldPattern( $tableName, $fieldName, $closePattern = true ) { |
| 442 | $fieldName = str_replace( '$', '\$', $fieldName ); |
| 443 | $tableName = str_replace( '$', '\$', $tableName ); |
| 444 | $pattern = '/([^\w$,]|^)' . $tableName . '\.' . $fieldName; |
| 445 | return $pattern . ( $closePattern ? '([^\w$]|$)/ui' : '' ); |
| 446 | } |
| 447 | |
| 448 | /** |
| 449 | * Generates a Regular Expression to match $tableName in a SQL string. |
| 450 | * Allows for $ as valid identifier character. |
| 451 | */ |
| 452 | public static function getSQLTablePattern( $tableName, $closePattern = true ) { |
| 453 | $tableName = str_replace( '$', '\$', $tableName ); |
| 454 | $pattern = '/([^\w$]|^)(' . $tableName . ')\.(\w*)'; |
| 455 | return $pattern . ( $closePattern ? '/ui' : '' ); |
| 456 | } |
| 457 | |
| 458 | /** |
| 459 | * Determines whether a string is a literal. |
| 460 | * This may need different handling for different (non-MySQL) DB types. |
| 461 | */ |
| 462 | public static function isSQLStringLiteral( $string ) { |
| 463 | return $string[0] == "'" && substr( $string, -1, 1 ) == "'"; |
| 464 | } |
| 465 | |
| 466 | public static function getDateFunctions( $dateDBField ) { |
| 467 | global $wgCargoDBtype; |
| 468 | |
| 469 | // Unfortunately, date handling in general - and date extraction |
| 470 | // specifically - is done differently in almost every DB |
| 471 | // system. If support was ever added for SQLite, |
| 472 | // that would require special handling as well. |
| 473 | if ( $wgCargoDBtype == 'postgres' ) { |
| 474 | $yearValue = "EXTRACT(YEAR FROM $dateDBField)"; |
| 475 | $monthValue = "EXTRACT(MONTH FROM $dateDBField)"; |
| 476 | $dayValue = "EXTRACT(DAY FROM $dateDBField)"; |
| 477 | } else { // MySQL |
| 478 | $yearValue = "YEAR($dateDBField)"; |
| 479 | $monthValue = "MONTH($dateDBField)"; |
| 480 | $dayValue = "DAY($dateDBField)"; |
| 481 | } |
| 482 | return [ $yearValue, $monthValue, $dayValue ]; |
| 483 | } |
| 484 | |
| 485 | /** |
| 486 | * Parses a piece of wikitext differently depending on whether |
| 487 | * we're in a special or regular page. |
| 488 | * |
| 489 | * @param string $value |
| 490 | * @param Parser|null $parser |
| 491 | * @return string |
| 492 | */ |
| 493 | public static function smartParse( $value, $parser ) { |
| 494 | global $wgRequest; |
| 495 | |
| 496 | // This decode() call is here in case the value was |
| 497 | // set using {{PAGENAME}}, which for some reason |
| 498 | // HTML-encodes some of its characters - see |
| 499 | // https://www.mediawiki.org/wiki/Help:Magic_words#Page_names |
| 500 | // Of course, String and Page fields could be set using |
| 501 | // {{PAGENAME}} as well, but those seem less likely. |
| 502 | $value = htmlspecialchars_decode( $value ); |
| 503 | |
| 504 | // Add a newline at the beginning if it looks like the value |
| 505 | // starts with a bulleted or numbered list, to make sure that |
| 506 | // the first line gets formatted correctly. |
| 507 | if ( strpos( $value, '*' ) === 0 || strpos( $value, '#' ) === 0 ) { |
| 508 | $value = "\n" . $value; |
| 509 | } |
| 510 | |
| 511 | // Parse it as if it's wikitext. The exact call |
| 512 | // depends on whether we're in a special page or not. |
| 513 | if ( $parser === null ) { |
| 514 | $parser = MediaWikiServices::getInstance()->getParser(); |
| 515 | } |
| 516 | |
| 517 | // Parser::getTitle() throws a TypeError if it would have |
| 518 | // returned null, so just catch the error. |
| 519 | // Why would the title be null? It's not clear, but it seems to |
| 520 | // happen in at least once case: in "action=pagevalues" for a |
| 521 | // page with non-ASCII characters in its name. |
| 522 | try { |
| 523 | $title = $parser->getTitle(); |
| 524 | } catch ( TypeError $e ) { |
| 525 | $title = null; |
| 526 | } |
| 527 | |
| 528 | if ( $title === null ) { |
| 529 | global $wgTitle; |
| 530 | $title = $wgTitle; |
| 531 | } |
| 532 | |
| 533 | if ( $title != null && $title->isSpecial( 'RunJobs' ) ) { |
| 534 | // Conveniently, if this is called from within a job |
| 535 | // being run, the name of the page will be |
| 536 | // Special:RunJobs. |
| 537 | // If that's the case, do nothing - we don't need to |
| 538 | // parse the value. |
| 539 | // This next clause should only be called for Cargo's special |
| 540 | // pages, not for SF's Special:RunQuery. Don't know about other |
| 541 | // special pages. |
| 542 | } elseif ( ( $title != null && $title->isSpecialPage() && !$wgRequest->getCheck( 'wpRunQuery' ) ) || |
| 543 | // The 'pagevalues' action is also a Cargo special page. |
| 544 | $wgRequest->getVal( 'action' ) == 'pagevalues' ) { |
| 545 | $parserOptions = ParserOptions::newFromAnon(); |
| 546 | $parserForInnerParse = MediaWikiServices::getInstance()->getParserFactory()->create(); |
| 547 | $parserOutput = $parserForInnerParse->parse( $value, $title, $parserOptions ); |
| 548 | $value = $parserOutput->getText( [ 'unwrap' => true ] ); |
| 549 | } else { |
| 550 | $value = $parser->internalParse( $value ); |
| 551 | } |
| 552 | return $value; |
| 553 | } |
| 554 | |
| 555 | public static function parsePageForStorage( $title, $pageContents ) { |
| 556 | // Special handling for the Approved Revs extension. |
| 557 | $approvedContent = null; |
| 558 | if ( class_exists( 'ApprovedRevs' ) ) { |
| 559 | $approvedContent = ApprovedRevs::getApprovedContent( $title ); |
| 560 | } |
| 561 | if ( $approvedContent != null ) { |
| 562 | if ( method_exists( $approvedContent, 'getText' ) ) { |
| 563 | // Approved Revs 1.0+ |
| 564 | $pageText = $approvedContent->getText(); |
| 565 | } else { |
| 566 | $pageText = $approvedContent; |
| 567 | } |
| 568 | } else { |
| 569 | $pageText = $pageContents; |
| 570 | } |
| 571 | $parser = MediaWikiServices::getInstance()->getParser(); |
| 572 | $parserOptions = ParserOptions::newFromAnon(); |
| 573 | $parser->parse( $pageText, $title, $parserOptions ); |
| 574 | } |
| 575 | |
| 576 | /** |
| 577 | * Drop, and then create again, the database table(s) holding the |
| 578 | * data for this template. |
| 579 | * Why "tables"? Because every field that holds a list of values gets |
| 580 | * its own helper table. |
| 581 | * |
| 582 | * @param int $templatePageID |
| 583 | * @return bool |
| 584 | * @throws MWException |
| 585 | */ |
| 586 | public static function recreateDBTablesForTemplate( |
| 587 | $templatePageID, |
| 588 | $createReplacement, |
| 589 | User $user, |
| 590 | $tableName = null, |
| 591 | $tableSchema = null, |
| 592 | $parentTables = null |
| 593 | ) { |
| 594 | if ( $tableName == null ) { |
| 595 | $tableName = self::getPageProp( $templatePageID, 'CargoTableName' ); |
| 596 | } |
| 597 | |
| 598 | if ( $tableSchema == null ) { |
| 599 | $tableSchemaString = self::getPageProp( $templatePageID, 'CargoFields' ); |
| 600 | // First, see if there even is DB storage for this template - |
| 601 | // if not, exit. |
| 602 | if ( $tableSchemaString === null ) { |
| 603 | return false; |
| 604 | } |
| 605 | $tableSchema = CargoTableSchema::newFromDBString( $tableSchemaString ); |
| 606 | } else { |
| 607 | $tableSchemaString = $tableSchema->toDBString(); |
| 608 | } |
| 609 | |
| 610 | $dbw = wfGetDB( DB_MASTER ); |
| 611 | $cdb = self::getDB(); |
| 612 | |
| 613 | // Cannot run any recreate if a replacement table exists. |
| 614 | $possibleReplacementTable = $tableName . '__NEXT'; |
| 615 | if ( self::tableFullyExists( $tableName ) && self::tableFullyExists( $possibleReplacementTable ) ) { |
| 616 | throw new MWException( wfMessage( 'cargo-recreatedata-replacementexists', $tableName, $possibleReplacementTable )->parse() ); |
| 617 | } |
| 618 | |
| 619 | if ( $createReplacement ) { |
| 620 | $tableName .= '__NEXT'; |
| 621 | if ( $cdb->tableExists( $possibleReplacementTable ) ) { |
| 622 | // The replacement table exists, but it does |
| 623 | // not have a row in cargo_tables - this is |
| 624 | // hopefully a rare occurrence. |
| 625 | try { |
| 626 | $cdb->begin(); |
| 627 | $cdb->dropTable( $tableName ); |
| 628 | $cdb->commit(); |
| 629 | } catch ( Exception $e ) { |
| 630 | throw new MWException( "Caught exception ($e) while trying to drop Cargo table. " |
| 631 | . "Please make sure that your database user account has the DROP permission." ); |
| 632 | } |
| 633 | } |
| 634 | } else { |
| 635 | // @TODO - is an array really necessary? Shouldn't it |
| 636 | // always be just one table name? Tied in with that, |
| 637 | // if a table name was already specified, do we need |
| 638 | // to do a lookup here? |
| 639 | $tableNames = []; |
| 640 | $res = $dbw->select( 'cargo_tables', 'main_table', [ 'template_id' => $templatePageID ] ); |
| 641 | foreach ( $res as $row ) { |
| 642 | $tableNames[] = $row->main_table; |
| 643 | } |
| 644 | |
| 645 | // For whatever reason, that DB query might have failed - |
| 646 | // if so, just add the table name here. |
| 647 | if ( $tableName != null && !in_array( $tableName, $tableNames ) ) { |
| 648 | $tableNames[] = $tableName; |
| 649 | } |
| 650 | |
| 651 | $mainTableAlreadyExists = self::tableFullyExists( $tableNames[0] ); |
| 652 | foreach ( $tableNames as $curTable ) { |
| 653 | try { |
| 654 | $cdb->begin(); |
| 655 | $cdb->dropTable( $curTable ); |
| 656 | $cdb->commit(); |
| 657 | } catch ( Exception $e ) { |
| 658 | throw new MWException( "Caught exception ($e) while trying to drop Cargo table. " |
| 659 | . "Please make sure that your database user account has the DROP permission." ); |
| 660 | } |
| 661 | $dbw->delete( 'cargo_pages', [ 'table_name' => $curTable ] ); |
| 662 | } |
| 663 | |
| 664 | $dbw->delete( 'cargo_tables', [ 'template_id' => $templatePageID ] ); |
| 665 | } |
| 666 | |
| 667 | self::createCargoTableOrTables( $cdb, $dbw, $tableName, $tableSchema, $tableSchemaString, $templatePageID ); |
| 668 | |
| 669 | if ( !$createReplacement ) { |
| 670 | // Log this. |
| 671 | if ( $mainTableAlreadyExists ) { |
| 672 | self::logTableAction( 'recreatetable', $tableName, $user ); |
| 673 | } else { |
| 674 | self::logTableAction( 'createtable', $tableName, $user ); |
| 675 | } |
| 676 | } |
| 677 | |
| 678 | return true; |
| 679 | } |
| 680 | |
| 681 | public static function tableFullyExists( $tableName ) { |
| 682 | $lb = MediaWikiServices::getInstance()->getDBLoadBalancer(); |
| 683 | $dbr = $lb->getConnectionRef( DB_REPLICA ); |
| 684 | $numRows = $dbr->selectRowCount( 'cargo_tables', '*', [ 'main_table' => $tableName ], __METHOD__ ); |
| 685 | if ( $numRows == 0 ) { |
| 686 | return false; |
| 687 | } |
| 688 | |
| 689 | $cdb = self::getDB(); |
| 690 | return $cdb->tableExists( $tableName ); |
| 691 | } |
| 692 | |
| 693 | public static function fieldTypeToSQLType( $fieldType, $dbType, $size = null ) { |
| 694 | global $wgCargoDefaultStringBytes; |
| 695 | |
| 696 | // Possible values for $dbType: "mysql", "postgres", "sqlite" |
| 697 | // @TODO - make sure it's one of these. |
| 698 | if ( $fieldType == 'Integer' ) { |
| 699 | switch ( $dbType ) { |
| 700 | case "mysql": |
| 701 | case "postgres": |
| 702 | return 'Int'; |
| 703 | case "sqlite": |
| 704 | return 'INTEGER'; |
| 705 | } |
| 706 | } elseif ( $fieldType == 'Float' || $fieldType == 'Rating' ) { |
| 707 | switch ( $dbType ) { |
| 708 | case "mysql": |
| 709 | return 'Double'; |
| 710 | case "postgres": |
| 711 | return 'Numeric'; |
| 712 | case "sqlite": |
| 713 | return 'REAL'; |
| 714 | } |
| 715 | } elseif ( $fieldType == 'Boolean' ) { |
| 716 | switch ( $dbType ) { |
| 717 | case "mysql": |
| 718 | case "postgres": |
| 719 | return 'Boolean'; |
| 720 | case "sqlite": |
| 721 | return 'INTEGER'; |
| 722 | } |
| 723 | } elseif ( $fieldType == 'Date' || $fieldType == 'Start date' || $fieldType == 'End date' ) { |
| 724 | switch ( $dbType ) { |
| 725 | case "mysql": |
| 726 | case "postgres": |
| 727 | return 'Date'; |
| 728 | case "sqlite": |
| 729 | // Should really be 'REAL', with |
| 730 | // accompanying handling. |
| 731 | return 'TEXT'; |
| 732 | } |
| 733 | } elseif ( $fieldType == 'Datetime' || $fieldType == 'Start datetime' || $fieldType == 'End datetime' ) { |
| 734 | // Some DB types have a datetime type that includes |
| 735 | // the time zone, but MySQL unfortunately doesn't, |
| 736 | // so the best solution for time zones is probably |
| 737 | // to have a separate field for them. |
| 738 | switch ( $dbType ) { |
| 739 | case "mysql": |
| 740 | return 'Datetime'; |
| 741 | case "postgres": |
| 742 | return 'Timestamp'; |
| 743 | case "sqlite": |
| 744 | // Should really be 'REAL', with |
| 745 | // accompanying handling. |
| 746 | return 'TEXT'; |
| 747 | } |
| 748 | } elseif ( $fieldType == 'Text' || $fieldType == 'Wikitext' ) { |
| 749 | switch ( $dbType ) { |
| 750 | case "mysql": |
| 751 | case "postgres": |
| 752 | case "sqlite": |
| 753 | return 'Text'; |
| 754 | } |
| 755 | } elseif ( $fieldType == 'Searchtext' ) { |
| 756 | if ( $dbType != 'mysql' ) { |
| 757 | throw new MWException( "Error: a \"Searchtext\" field can currently only be defined for MySQL databases." ); |
| 758 | } |
| 759 | return 'Mediumtext'; |
| 760 | } else { // 'String', 'Page', 'Wikitext string', etc. |
| 761 | if ( $size == null ) { |
| 762 | $size = $wgCargoDefaultStringBytes; |
| 763 | } |
| 764 | switch ( $dbType ) { |
| 765 | case "mysql": |
| 766 | case "postgres": |
| 767 | // For at least MySQL, there's a limit |
| 768 | // on how many total bytes a table's |
| 769 | // fields can have, and "Text" and |
| 770 | // "Blob" fields don't get added to the |
| 771 | // total, so if it's a big piece of |
| 772 | // text, just make it a "Text" field. |
| 773 | if ( $size > 1000 ) { |
| 774 | return 'Text'; |
| 775 | } else { |
| 776 | return "Varchar($size)"; |
| 777 | } |
| 778 | case "sqlite": |
| 779 | return 'TEXT'; |
| 780 | } |
| 781 | } |
| 782 | } |
| 783 | |
| 784 | public static function createCargoTableOrTables( $cdb, $dbw, $tableName, $tableSchema, $tableSchemaString, $templatePageID ) { |
| 785 | $cdb->begin(); |
| 786 | $fieldsInMainTable = [ |
| 787 | '_ID' => 'Integer', |
| 788 | '_pageName' => 'String', |
| 789 | '_pageTitle' => 'String', |
| 790 | '_pageNamespace' => 'Integer', |
| 791 | '_pageID' => 'Integer', |
| 792 | ]; |
| 793 | |
| 794 | $containsFileType = false; |
| 795 | foreach ( $tableSchema->mFieldDescriptions as $fieldName => $fieldDescription ) { |
| 796 | $isList = $fieldDescription->mIsList; |
| 797 | $fieldType = $fieldDescription->mType; |
| 798 | |
| 799 | if ( $isList || $fieldType == 'Coordinates' ) { |
| 800 | // No field will be created with this name - |
| 801 | // instead, we'll have one called |
| 802 | // fieldName + '__full', and a separate table |
| 803 | // for holding each value. |
| 804 | // The field holding the full list will always |
| 805 | // just be text - and it could be long. |
| 806 | $fieldsInMainTable[$fieldName . '__full'] = 'Text'; |
| 807 | } else { |
| 808 | $fieldsInMainTable[$fieldName] = $fieldDescription; |
| 809 | } |
| 810 | |
| 811 | if ( !$isList && $fieldType == 'Coordinates' ) { |
| 812 | $fieldsInMainTable[$fieldName . '__lat'] = 'Float'; |
| 813 | $fieldsInMainTable[$fieldName . '__lon'] = 'Float'; |
| 814 | } elseif ( $fieldType == 'Date' || $fieldType == 'Datetime' || |
| 815 | $fieldType == 'Start date' || $fieldType == 'Start datetime' || |
| 816 | $fieldType == 'End date' || $fieldType == 'End datetime' ) { |
| 817 | $fieldsInMainTable[$fieldName . '__precision'] = 'Integer'; |
| 818 | } elseif ( $fieldType == 'File' ) { |
| 819 | $containsFileType = true; |
| 820 | } |
| 821 | } |
| 822 | |
| 823 | self::createTable( $cdb, $tableName, $fieldsInMainTable ); |
| 824 | |
| 825 | // Now also create tables for each of the 'list' fields, |
| 826 | // if there are any. |
| 827 | $fieldTableNames = []; // Names of tables that store data regarding pages |
| 828 | $fieldHelperTableNames = []; // Names of tables that store metadata regarding template or fields |
| 829 | foreach ( $tableSchema->mFieldDescriptions as $fieldName => $fieldDescription ) { |
| 830 | if ( $fieldDescription->mIsList ) { |
| 831 | // The double underscore in this table name |
| 832 | // should prevent anyone from giving this name |
| 833 | // to a "real" table. |
| 834 | $fieldTableName = $tableName . '__' . $fieldName; |
| 835 | $cdb->dropTable( $fieldTableName ); |
| 836 | |
| 837 | $fieldsInTable = [ '_rowID' => 'Integer' ]; |
| 838 | $fieldType = $fieldDescription->mType; |
| 839 | if ( $fieldType == 'Coordinates' ) { |
| 840 | $fieldsInTable['_lat'] = 'Float'; |
| 841 | $fieldsInTable['_lon'] = 'Float'; |
| 842 | } else { |
| 843 | $fieldsInTable['_value'] = $fieldType; |
| 844 | } |
| 845 | if ( $fieldDescription->isDateOrDateTime() ) { |
| 846 | $fieldsInTable['_value__precision'] = 'Integer'; |
| 847 | } |
| 848 | $fieldsInTable['_position'] = 'Integer'; |
| 849 | |
| 850 | self::createTable( $cdb, $fieldTableName, $fieldsInTable ); |
| 851 | $fieldTableNames[] = $fieldTableName; |
| 852 | } |
| 853 | if ( $fieldDescription->mIsHierarchy ) { |
| 854 | $fieldHelperTableName = $tableName . '__' . $fieldName . '__hierarchy'; |
| 855 | $cdb->dropTable( $fieldHelperTableName ); |
| 856 | $fieldType = $fieldDescription->mType; |
| 857 | $fieldsInTable = [ |
| 858 | '_value' => $fieldType, |
| 859 | '_left' => 'Integer', |
| 860 | '_right' => 'Integer', |
| 861 | ]; |
| 862 | self::createTable( $cdb, $fieldHelperTableName, $fieldsInTable, true ); |
| 863 | |
| 864 | $fieldHelperTableNames[] = $fieldHelperTableName; |
| 865 | // Insert hierarchy information in the __hierarchy table |
| 866 | $hierarchyTree = CargoHierarchyTree::newFromWikiText( $fieldDescription->mHierarchyStructure ); |
| 867 | $hierarchyStructureTableData = $hierarchyTree->generateHierarchyStructureTableData(); |
| 868 | foreach ( $hierarchyStructureTableData as $entry ) { |
| 869 | $cdb->insert( $fieldHelperTableName, $entry ); |
| 870 | } |
| 871 | } |
| 872 | } |
| 873 | |
| 874 | // And create a helper table holding all the files stored in |
| 875 | // this table, if there are any. |
| 876 | if ( $containsFileType ) { |
| 877 | $fileTableName = $tableName . '___files'; |
| 878 | $cdb->dropTable( $fileTableName ); |
| 879 | $fieldsInTable = [ |
| 880 | '_pageName' => 'String', |
| 881 | '_pageID' => 'Integer', |
| 882 | '_fieldName' => 'String', |
| 883 | '_fileName' => 'String' |
| 884 | ]; |
| 885 | self::createTable( $cdb, $fileTableName, $fieldsInTable ); |
| 886 | } |
| 887 | |
| 888 | // End transaction and apply DB changes. |
| 889 | $cdb->commit(); |
| 890 | |
| 891 | // Finally, store all the info in the cargo_tables table. |
| 892 | $dbw->insert( 'cargo_tables', [ |
| 893 | 'template_id' => $templatePageID, |
| 894 | 'main_table' => $tableName, |
| 895 | 'field_tables' => serialize( $fieldTableNames ), |
| 896 | 'field_helper_tables' => serialize( $fieldHelperTableNames ), |
| 897 | 'table_schema' => $tableSchemaString |
| 898 | ] ); |
| 899 | } |
| 900 | |
| 901 | public static function createTable( $cdb, $tableName, $fieldsInTable, $multipleColumnIndex = false ) { |
| 902 | global $wgCargoDBRowFormat; |
| 903 | |
| 904 | // Unfortunately, there is not yet a 'CREATE TABLE' wrapper |
| 905 | // in the MediaWiki DB API, so we have to call SQL directly. |
| 906 | $dbType = $cdb->getType(); |
| 907 | $sqlTableName = $cdb->tableName( $tableName ); |
| 908 | $createSQL = "CREATE TABLE $sqlTableName ( "; |
| 909 | $firstField = true; |
| 910 | foreach ( $fieldsInTable as $fieldName => $fieldDescOrType ) { |
| 911 | $fieldOptionsText = ''; |
| 912 | if ( is_object( $fieldDescOrType ) ) { |
| 913 | $fieldType = $fieldDescOrType->mType; |
| 914 | $fieldSize = $fieldDescOrType->mSize; |
| 915 | $sqlType = self::fieldTypeToSQLType( $fieldType, $dbType, $fieldSize ); |
| 916 | |
| 917 | if ( $fieldDescOrType->mIsMandatory ) { |
| 918 | $fieldOptionsText .= ' NOT NULL'; |
| 919 | } |
| 920 | if ( $fieldDescOrType->mIsUnique ) { |
| 921 | $fieldOptionsText .= ' UNIQUE'; |
| 922 | } |
| 923 | } else { |
| 924 | $fieldType = $fieldDescOrType; |
| 925 | $sqlType = self::fieldTypeToSQLType( $fieldType, $dbType ); |
| 926 | if ( $fieldName == '_ID' ) { |
| 927 | $fieldOptionsText .= ' PRIMARY KEY'; |
| 928 | } elseif ( $fieldName == '_rowID' ) { |
| 929 | $fieldOptionsText .= ' NOT NULL'; |
| 930 | } |
| 931 | } |
| 932 | if ( $firstField ) { |
| 933 | $firstField = false; |
| 934 | } else { |
| 935 | $createSQL .= ', '; |
| 936 | } |
| 937 | $sqlFieldName = $cdb->addIdentifierQuotes( $fieldName ); |
| 938 | $createSQL .= "$sqlFieldName $sqlType $fieldOptionsText"; |
| 939 | if ( $fieldType == 'Searchtext' ) { |
| 940 | $createSQL .= ", FULLTEXT KEY $fieldName ( $sqlFieldName )"; |
| 941 | } |
| 942 | } |
| 943 | |
| 944 | $createSQL .= ' )'; |
| 945 | // Allow for setting a format like COMPRESSED, DYNAMIC etc. |
| 946 | if ( $wgCargoDBRowFormat != null ) { |
| 947 | $createSQL .= " ROW_FORMAT=$wgCargoDBRowFormat"; |
| 948 | } |
| 949 | $cdb->query( $createSQL ); |
| 950 | |
| 951 | // Add an index for any field that's not of type Text, |
| 952 | // Searchtext or Wikitext. |
| 953 | $indexedFields = []; |
| 954 | foreach ( $fieldsInTable as $fieldName => $fieldDescOrType ) { |
| 955 | // We don't need to index _ID, because it's already |
| 956 | // the primary key. |
| 957 | if ( $fieldName == '_ID' ) { |
| 958 | continue; |
| 959 | } |
| 960 | |
| 961 | // @HACK - MySQL does not allow more than 64 keys/ |
| 962 | // indexes per table. We are indexing most fields - |
| 963 | // so if a table has more than 64 fields, there's a |
| 964 | // good chance that it will overrun this limit. |
| 965 | // So we just stop indexing after the first 60. |
| 966 | if ( count( $indexedFields ) >= 60 ) { |
| 967 | break; |
| 968 | } |
| 969 | |
| 970 | if ( is_object( $fieldDescOrType ) ) { |
| 971 | $fieldType = $fieldDescOrType->mType; |
| 972 | } else { |
| 973 | $fieldType = $fieldDescOrType; |
| 974 | } |
| 975 | if ( in_array( $fieldType, [ 'Text', 'Searchtext', 'Wikitext' ] ) ) { |
| 976 | continue; |
| 977 | } |
| 978 | $indexedFields[] = $fieldName; |
| 979 | } |
| 980 | |
| 981 | if ( $multipleColumnIndex ) { |
| 982 | $indexName = "nested_set_$tableName"; |
| 983 | $sqlFieldNames = array_map( |
| 984 | [ $cdb, 'addIdentifierQuotes' ], |
| 985 | $indexedFields |
| 986 | ); |
| 987 | $sqlFieldNamesStr = implode( ', ', $sqlFieldNames ); |
| 988 | $createIndexSQL = "CREATE INDEX $indexName ON " . |
| 989 | "$sqlTableName ($sqlFieldNamesStr)"; |
| 990 | $cdb->query( $createIndexSQL ); |
| 991 | } else { |
| 992 | foreach ( $indexedFields as $fieldName ) { |
| 993 | $indexName = $fieldName . '_' . $tableName; |
| 994 | // MySQL doesn't allow index names with more than 64 characters. |
| 995 | $indexName = substr( $indexName, 0, 64 ); |
| 996 | $sqlFieldName = $cdb->addIdentifierQuotes( $fieldName ); |
| 997 | $sqlIndexName = $cdb->addIdentifierQuotes( $indexName ); |
| 998 | $createIndexSQL = "CREATE INDEX $sqlIndexName ON " . |
| 999 | "$sqlTableName ($sqlFieldName)"; |
| 1000 | $cdb->query( $createIndexSQL ); |
| 1001 | } |
| 1002 | } |
| 1003 | } |
| 1004 | |
| 1005 | public static function specialTableNames() { |
| 1006 | $specialTableNames = [ '_pageData', '_fileData' ]; |
| 1007 | if ( class_exists( 'FDGanttContent' ) ) { |
| 1008 | // The Flex Diagrams extension is installed. |
| 1009 | $specialTableNames[] = '_bpmnData'; |
| 1010 | $specialTableNames[] = '_ganttData'; |
| 1011 | } |
| 1012 | return $specialTableNames; |
| 1013 | } |
| 1014 | |
| 1015 | public static function fullTextMatchSQL( $cdb, $tableName, $fieldName, $searchTerm ) { |
| 1016 | $fullFieldName = self::escapedFieldName( $cdb, $tableName, $fieldName ); |
| 1017 | $searchTerm = $cdb->addQuotes( $searchTerm ); |
| 1018 | return " MATCH($fullFieldName) AGAINST ($searchTerm IN BOOLEAN MODE) "; |
| 1019 | } |
| 1020 | |
| 1021 | /** |
| 1022 | * Parses one half of a set of coordinates into a number. |
| 1023 | * |
| 1024 | * Copied from Miga, also written by Yaron Koren |
| 1025 | * (https://github.com/yaronkoren/miga/blob/master/MDVCoordinates.js) |
| 1026 | * - though that one is in Javascript. |
| 1027 | */ |
| 1028 | public static function coordinatePartToNumber( $coordinateStr ) { |
| 1029 | $degreesSymbols = [ "\x{00B0}", "d" ]; |
| 1030 | $minutesSymbols = [ "'", "\x{2032}", "\x{00B4}" ]; |
| 1031 | $secondsSymbols = [ '"', "\x{2033}", "\x{00B4}\x{00B4}" ]; |
| 1032 | |
| 1033 | $numDegrees = null; |
| 1034 | $numMinutes = null; |
| 1035 | $numSeconds = null; |
| 1036 | |
| 1037 | foreach ( $degreesSymbols as $degreesSymbol ) { |
| 1038 | $pattern = '/([\d\.]+)' . $degreesSymbol . '/u'; |
| 1039 | if ( preg_match( $pattern, $coordinateStr, $matches ) ) { |
| 1040 | $numDegrees = floatval( $matches[1] ); |
| 1041 | break; |
| 1042 | } |
| 1043 | } |
| 1044 | if ( $numDegrees == null ) { |
| 1045 | throw new MWException( "Error: could not parse degrees in \"$coordinateStr\"." ); |
| 1046 | } |
| 1047 | |
| 1048 | foreach ( $minutesSymbols as $minutesSymbol ) { |
| 1049 | $pattern = '/([\d\.]+)' . $minutesSymbol . '/u'; |
| 1050 | if ( preg_match( $pattern, $coordinateStr, $matches ) ) { |
| 1051 | $numMinutes = floatval( $matches[1] ); |
| 1052 | break; |
| 1053 | } |
| 1054 | } |
| 1055 | if ( $numMinutes == null ) { |
| 1056 | // This might not be an error - the number of minutes |
| 1057 | // might just not have been set. |
| 1058 | $numMinutes = 0; |
| 1059 | } |
| 1060 | |
| 1061 | foreach ( $secondsSymbols as $secondsSymbol ) { |
| 1062 | $pattern = '/(\d+)' . $secondsSymbol . '/u'; |
| 1063 | if ( preg_match( $pattern, $coordinateStr, $matches ) ) { |
| 1064 | $numSeconds = floatval( $matches[1] ); |
| 1065 | break; |
| 1066 | } |
| 1067 | } |
| 1068 | if ( $numSeconds == null ) { |
| 1069 | // This might not be an error - the number of seconds |
| 1070 | // might just not have been set. |
| 1071 | $numSeconds = 0; |
| 1072 | } |
| 1073 | |
| 1074 | return ( $numDegrees + ( $numMinutes / 60 ) + ( $numSeconds / 3600 ) ); |
| 1075 | } |
| 1076 | |
| 1077 | /** |
| 1078 | * Parses a coordinate string in (hopefully) any standard format. |
| 1079 | * |
| 1080 | * Copied from Miga, also written by Yaron Koren |
| 1081 | * (https://github.com/yaronkoren/miga/blob/master/MDVCoordinates.js) |
| 1082 | * - though that one is in Javascript. |
| 1083 | */ |
| 1084 | public static function parseCoordinatesString( $coordinatesString ) { |
| 1085 | $coordinatesString = trim( $coordinatesString ); |
| 1086 | if ( $coordinatesString === '' ) { |
| 1087 | // FIXME: No caller expects this! |
| 1088 | return; |
| 1089 | } |
| 1090 | |
| 1091 | // This is safe to do, right? |
| 1092 | $coordinatesString = str_replace( [ '[', ']' ], '', $coordinatesString ); |
| 1093 | // See if they're separated by commas. |
| 1094 | if ( strpos( $coordinatesString, ',' ) > 0 ) { |
| 1095 | $latAndLonStrings = explode( ',', $coordinatesString ); |
| 1096 | } else { |
| 1097 | // If there are no commas, the first half, for the |
| 1098 | // latitude, should end with either 'N' or 'S', so do a |
| 1099 | // little hack to split up the two halves. |
| 1100 | $coordinatesString = str_replace( [ 'N', 'S' ], [ 'N,', 'S,' ], $coordinatesString ); |
| 1101 | $latAndLonStrings = explode( ',', $coordinatesString ); |
| 1102 | } |
| 1103 | |
| 1104 | if ( count( $latAndLonStrings ) != 2 ) { |
| 1105 | throw new MWException( "Error parsing coordinates string: \"$coordinatesString\"." ); |
| 1106 | } |
| 1107 | list( $latString, $lonString ) = $latAndLonStrings; |
| 1108 | |
| 1109 | // Handle strings one at a time. |
| 1110 | $latIsNegative = false; |
| 1111 | if ( strpos( $latString, 'S' ) > 0 ) { |
| 1112 | $latIsNegative = true; |
| 1113 | } |
| 1114 | $latString = str_replace( [ 'N', 'S' ], '', $latString ); |
| 1115 | if ( is_numeric( $latString ) ) { |
| 1116 | $latNum = floatval( $latString ); |
| 1117 | } else { |
| 1118 | $latNum = self::coordinatePartToNumber( $latString ); |
| 1119 | } |
| 1120 | if ( $latIsNegative ) { |
| 1121 | $latNum *= -1; |
| 1122 | } |
| 1123 | |
| 1124 | $lonIsNegative = false; |
| 1125 | if ( strpos( $lonString, 'W' ) > 0 ) { |
| 1126 | $lonIsNegative = true; |
| 1127 | } |
| 1128 | $lonString = str_replace( [ 'E', 'W' ], '', $lonString ); |
| 1129 | if ( is_numeric( $lonString ) ) { |
| 1130 | $lonNum = floatval( $lonString ); |
| 1131 | } else { |
| 1132 | $lonNum = self::coordinatePartToNumber( $lonString ); |
| 1133 | } |
| 1134 | if ( $lonIsNegative ) { |
| 1135 | $lonNum *= -1; |
| 1136 | } |
| 1137 | |
| 1138 | return [ $latNum, $lonNum ]; |
| 1139 | } |
| 1140 | |
| 1141 | public static function escapedFieldName( $cdb, $tableName, $fieldName ) { |
| 1142 | if ( is_array( $tableName ) ) { |
| 1143 | $tableAlias = key( $tableName ); |
| 1144 | return $cdb->addIdentifierQuotes( $tableAlias ) . '.' . |
| 1145 | $cdb->addIdentifierQuotes( $fieldName ); |
| 1146 | } |
| 1147 | return $cdb->tableName( $tableName ) . '.' . |
| 1148 | $cdb->addIdentifierQuotes( $fieldName ); |
| 1149 | } |
| 1150 | |
| 1151 | public static function joinOfMainAndFieldTable( $cdb, $mainTableName, $fieldTableName ) { |
| 1152 | return [ |
| 1153 | 'LEFT OUTER JOIN', |
| 1154 | self::escapedFieldName( $cdb, $mainTableName, '_ID' ) . |
| 1155 | ' = ' . |
| 1156 | self::escapedFieldName( $cdb, $fieldTableName, '_rowID' ) |
| 1157 | ]; |
| 1158 | } |
| 1159 | |
| 1160 | public static function joinOfMainAndParentTable( $cdb, $mainTable, $mainTableField, |
| 1161 | $parentTable, $parentTableField ) { |
| 1162 | return [ |
| 1163 | 'LEFT OUTER JOIN', |
| 1164 | self::escapedFieldName( $cdb, $mainTable, $mainTableField ) . |
| 1165 | ' = ' . |
| 1166 | self::escapedFieldName( $cdb, $parentTable, $parentTableField ) |
| 1167 | ]; |
| 1168 | } |
| 1169 | |
| 1170 | public static function joinOfFieldAndMainTable( $cdb, $fieldTable, $mainTable, |
| 1171 | $isHierarchy = false, $hierarchyFieldName = null ) { |
| 1172 | if ( $isHierarchy ) { |
| 1173 | return [ |
| 1174 | 'LEFT OUTER JOIN', |
| 1175 | self::escapedFieldName( $cdb, $fieldTable, '_value' ) . ' = ' . |
| 1176 | self::escapedFieldName( $cdb, $mainTable, $hierarchyFieldName ), |
| 1177 | ]; |
| 1178 | } else { |
| 1179 | return [ |
| 1180 | 'LEFT OUTER JOIN', |
| 1181 | self::escapedFieldName( $cdb, $fieldTable, '_rowID' ) . ' = ' . |
| 1182 | self::escapedFieldName( $cdb, $mainTable, '_ID' ), |
| 1183 | ]; |
| 1184 | } |
| 1185 | } |
| 1186 | |
| 1187 | public static function joinOfSingleFieldAndHierarchyTable( $cdb, $singleFieldTableName, $fieldColumnName, $hierarchyTableName ) { |
| 1188 | return [ |
| 1189 | 'LEFT OUTER JOIN', |
| 1190 | self::escapedFieldName( $cdb, $singleFieldTableName, $fieldColumnName ) . |
| 1191 | ' = ' . |
| 1192 | self::escapedFieldName( $cdb, $hierarchyTableName, '_value' ) |
| 1193 | ]; |
| 1194 | } |
| 1195 | |
| 1196 | public static function escapedInsert( $db, $tableName, $fieldValues ) { |
| 1197 | // Put quotes around the field names - needed for Postgres, |
| 1198 | // which otherwise lowercases all field names. |
| 1199 | $quotedFieldValues = []; |
| 1200 | foreach ( $fieldValues as $fieldName => $fieldValue ) { |
| 1201 | $quotedFieldName = $db->addIdentifierQuotes( $fieldName ); |
| 1202 | $quotedFieldValues[$quotedFieldName] = $fieldValue; |
| 1203 | } |
| 1204 | $db->insert( $tableName, $quotedFieldValues ); |
| 1205 | } |
| 1206 | |
| 1207 | /** |
| 1208 | * @param LinkRenderer $linkRenderer |
| 1209 | * @param LinkTarget|Title $title |
| 1210 | * @param string|null $msg Must already be HTML escaped |
| 1211 | * @param array $attrs link attributes |
| 1212 | * @param array $params query parameters |
| 1213 | * |
| 1214 | * @return string|null HTML link |
| 1215 | */ |
| 1216 | public static function makeLink( $linkRenderer, $title, $msg = null, $attrs = [], $params = [] ) { |
| 1217 | global $wgTitle; |
| 1218 | |
| 1219 | if ( $title === null ) { |
| 1220 | return null; |
| 1221 | } elseif ( $wgTitle !== null && $title->equals( $wgTitle ) ) { |
| 1222 | // Display bolded text instead of a link. |
| 1223 | return Linker::makeSelfLinkObj( $title, $msg ); |
| 1224 | } else { |
| 1225 | $html = ( $msg == null ) ? null : new HtmlArmor( $msg ); |
| 1226 | return $linkRenderer->makeLink( $title, $html, $attrs, $params ); |
| 1227 | } |
| 1228 | } |
| 1229 | |
| 1230 | public static function getSpecialPage( $pageName ) { |
| 1231 | return MediaWikiServices::getInstance()->getSpecialPageFactory() |
| 1232 | ->getPage( $pageName ); |
| 1233 | } |
| 1234 | |
| 1235 | /** |
| 1236 | * Get the wiki's content language. |
| 1237 | * @since 2.6 |
| 1238 | * @return Language |
| 1239 | */ |
| 1240 | public static function getContentLang() { |
| 1241 | return MediaWikiServices::getInstance()->getContentLanguage(); |
| 1242 | } |
| 1243 | |
| 1244 | public static function logTableAction( $actionName, $tableName, User $user ) { |
| 1245 | $log = new LogPage( 'cargo' ); |
| 1246 | $ctPage = self::getSpecialPage( 'CargoTables' ); |
| 1247 | $ctTitle = $ctPage->getPageTitle(); |
| 1248 | if ( $actionName == 'deletetable' ) { |
| 1249 | $logParams = [ $tableName ]; |
| 1250 | } else { |
| 1251 | $ctURL = $ctTitle->getFullURL(); |
| 1252 | $tableURL = "$ctURL/$tableName"; |
| 1253 | $tableLink = Html::element( |
| 1254 | 'a', |
| 1255 | [ 'href' => $tableURL ], |
| 1256 | $tableName |
| 1257 | ); |
| 1258 | $logParams = [ $tableLink ]; |
| 1259 | } |
| 1260 | // Every log entry requires an associated title; Cargo table |
| 1261 | // actions don't involve an actual page, so we just use |
| 1262 | // Special:CargoTables as the title. |
| 1263 | $log->addEntry( $actionName, $ctTitle, '', $logParams, $user ); |
| 1264 | } |
| 1265 | |
| 1266 | public static function validateHierarchyStructure( $hierarchyStructure ) { |
| 1267 | $hierarchyNodesArray = explode( "\n", $hierarchyStructure ); |
| 1268 | $matches = []; |
| 1269 | preg_match( '/^([*]*)[^*]*/i', $hierarchyNodesArray[0], $matches ); |
| 1270 | if ( strlen( $matches[1] ) != 1 ) { |
| 1271 | throw new MWException( "Error: First entry of hierarchy values should start with exact one '*', the entry \"" . |
| 1272 | $hierarchyNodesArray[0] . "\" has " . strlen( $matches[1] ) . " '*'" ); |
| 1273 | } |
| 1274 | $level = 0; |
| 1275 | foreach ( $hierarchyNodesArray as $node ) { |
| 1276 | if ( !preg_match( '/^([*]*)( *)(.*)/i', $node, $matches ) ) { |
| 1277 | throw new MWException( "Error: The \"" . $node . "\" entry of hierarchy values does not follow syntax. " . |
| 1278 | "The entry should be of the form : * entry" ); |
| 1279 | } |
| 1280 | if ( strlen( $matches[1] ) < 1 ) { |
| 1281 | throw new MWException( "Error: Each entry of hierarchy values should start with atleast one '*', the entry \"" . |
| 1282 | $node . "\" has " . strlen( $matches[1] ) . " '*'" ); |
| 1283 | } |
| 1284 | if ( strlen( $matches[1] ) - $level > 1 ) { |
| 1285 | throw new MWException( "Error: Level or count of '*' in hierarchy values should be increased only by count of 1, the entry \"" . |
| 1286 | $node . "\" should have " . ( $level + 1 ) . " or less '*'" ); |
| 1287 | } |
| 1288 | $level = strlen( $matches[1] ); |
| 1289 | if ( strlen( $matches[3] ) == 0 ) { |
| 1290 | throw new MWException( "Error: The entry of hierarchy values cannot be empty." ); |
| 1291 | } |
| 1292 | } |
| 1293 | } |
| 1294 | |
| 1295 | public static function validateFieldDescriptionString( $fieldDescriptionStr ) { |
| 1296 | $hasParameterFormat = preg_match( '/^([^(]*)\s*\((.*)\)$/s', $fieldDescriptionStr, $matches ); |
| 1297 | |
| 1298 | if ( !$hasParameterFormat ) { |
| 1299 | if ( self::stringContainsParentheses( $fieldDescriptionStr ) ) { |
| 1300 | throw new MWException( 'Invalid field description - Parentheses do not match: "' . $fieldDescriptionStr . '"' ); |
| 1301 | } |
| 1302 | } else { |
| 1303 | if ( count( $matches ) == 3 ) { |
| 1304 | $extraParamsString = $matches[2]; |
| 1305 | $extraParams = explode( ';', $extraParamsString ); |
| 1306 | |
| 1307 | foreach ( $extraParams as $extraParam ) { |
| 1308 | $extraParamParts = explode( '=', $extraParam, 2 ); |
| 1309 | $paramKey = strtolower( trim( $extraParamParts[0] ) ); |
| 1310 | $paramValue = isset( $extraParamParts[1] ) ? trim( $extraParamParts[1] ) : ''; |
| 1311 | |
| 1312 | if ( self::stringContainsParentheses( $paramKey ) ) { |
| 1313 | throw new MWException( 'Invalid field description - Parameter name "' . $paramKey . '" must not include parentheses: "' . $fieldDescriptionStr . '"' ); |
| 1314 | } |
| 1315 | |
| 1316 | if ( $paramKey == 'allowed values' ) { |
| 1317 | continue; |
| 1318 | } |
| 1319 | |
| 1320 | if ( self::stringContainsParentheses( $paramValue ) ) { |
| 1321 | throw new MWException( 'Invalid field description - Parameter value "' . $paramValue . '" must not include parentheses: "' . $fieldDescriptionStr . '"' ); |
| 1322 | } |
| 1323 | } |
| 1324 | } |
| 1325 | } |
| 1326 | } |
| 1327 | |
| 1328 | /** |
| 1329 | * A helper function, because Title::getTemplateLinksTo() is broken in |
| 1330 | * MW 1.37. |
| 1331 | */ |
| 1332 | public static function getTemplateLinksTo( $templateTitle, $options = [] ) { |
| 1333 | if ( class_exists( 'MediaWiki\CommentFormatter\CommentBatch' ) ) { |
| 1334 | // MW 1.38+ - just use the standard function again. |
| 1335 | return $templateTitle->getTemplateLinksTo( $options ); |
| 1336 | } |
| 1337 | |
| 1338 | $db = wfGetDB( DB_REPLICA ); |
| 1339 | |
| 1340 | $selectFields = LinkCache::getSelectFields(); |
| 1341 | $selectFields[] = 'page_namespace'; |
| 1342 | $selectFields[] = 'page_title'; |
| 1343 | |
| 1344 | $res = $db->select( |
| 1345 | [ 'page', 'templatelinks' ], |
| 1346 | $selectFields, |
| 1347 | [ |
| 1348 | "tl_from=page_id", |
| 1349 | "tl_namespace" => NS_TEMPLATE, |
| 1350 | "tl_title" => $templateTitle->getDBkey() |
| 1351 | ], |
| 1352 | __METHOD__, |
| 1353 | $options |
| 1354 | ); |
| 1355 | |
| 1356 | $retVal = []; |
| 1357 | if ( $res->numRows() ) { |
| 1358 | $linkCache = MediaWikiServices::getInstance()->getLinkCache(); |
| 1359 | foreach ( $res as $row ) { |
| 1360 | $titleObj = Title::makeTitle( $row->page_namespace, $row->page_title ); |
| 1361 | if ( $titleObj ) { |
| 1362 | $linkCache->addGoodLinkObjFromRow( $titleObj, $row ); |
| 1363 | $retVal[] = $titleObj; |
| 1364 | } |
| 1365 | } |
| 1366 | } |
| 1367 | return $retVal; |
| 1368 | } |
| 1369 | |
| 1370 | public static function setParserOutputPageProperty( $parserOutput, $property, $value ) { |
| 1371 | if ( method_exists( $parserOutput, 'setPageProperty' ) ) { |
| 1372 | // MW 1.38 |
| 1373 | $parserOutput->setPageProperty( $property, $value ); |
| 1374 | } else { |
| 1375 | $parserOutput->setProperty( $property, $value ); |
| 1376 | } |
| 1377 | } |
| 1378 | |
| 1379 | public static function globalFields() { |
| 1380 | return [ |
| 1381 | '_pageID' => [ 'type' => 'Integer', 'isList' => false ], |
| 1382 | '_pageName' => [ 'type' => 'Page', 'isList' => false ], |
| 1383 | '_pageTitle' => [ 'type' => 'String', 'isList' => false ], |
| 1384 | '_pageNamespace' => [ 'type' => 'Integer', 'isList' => false ], |
| 1385 | ]; |
| 1386 | } |
| 1387 | |
| 1388 | public static function addGlobalFieldsToSchema( $schema ) { |
| 1389 | foreach ( self::globalFields() as $field => $fieldInfo ) { |
| 1390 | $fieldDesc = new CargoFieldDescription(); |
| 1391 | $fieldDesc->mType = $fieldInfo["type"]; |
| 1392 | $fieldDesc->mIsList = $fieldInfo["isList"]; |
| 1393 | if ( $fieldInfo["isList"] ) { |
| 1394 | $fieldDesc->setDelimiter( '|' ); |
| 1395 | } |
| 1396 | $schema->addField( $field, $fieldDesc ); |
| 1397 | } |
| 1398 | } |
| 1399 | |
| 1400 | public static function stringContainsParentheses( $str ) { |
| 1401 | return substr_count( $str, ')' ) > 0 || substr_count( $str, '(' ) > 0; |
| 1402 | } |
| 1403 | |
| 1404 | public static function makeWikiPage( $title ) { |
| 1405 | if ( method_exists( MediaWikiServices::class, 'getWikiPageFactory' ) ) { |
| 1406 | // MW 1.36+ |
| 1407 | return MediaWikiServices::getInstance()->getWikiPageFactory()->newFromTitle( $title ); |
| 1408 | } else { |
| 1409 | return WikiPage::factory( $title ); |
| 1410 | } |
| 1411 | } |
| 1412 | } |