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| 1 | <?php |
| 2 | /** |
| 3 | * Class for the #cargo_declare parser function, as well as for the creation |
| 4 | * (and re-creation) of Cargo database tables. |
| 5 | * |
| 6 | * @author Yaron Koren |
| 7 | * @ingroup Cargo |
| 8 | */ |
| 9 | |
| 10 | use MediaWiki\MediaWikiServices; |
| 11 | |
| 12 | class CargoDeclare { |
| 13 | |
| 14 | public static $settings = []; |
| 15 | |
| 16 | /** |
| 17 | * "Reserved words" - terms that should not be used as table or field |
| 18 | * names, because they are reserved for SQL. |
| 19 | * (Some words here are much more likely to be used than others.) |
| 20 | * @TODO - currently this list only includes reserved words from |
| 21 | * MySQL; other DB systems' additional words (if any) should be added |
| 22 | * as well. |
| 23 | * |
| 24 | * @var string[] |
| 25 | */ |
| 26 | private static $sqlReservedWords = [ |
| 27 | 'accessible', 'add', 'all', 'alter', 'analyze', |
| 28 | 'and', 'as', 'asc', 'asensitive', 'before', |
| 29 | 'between', 'bigint', 'binary', 'blob', 'both', |
| 30 | 'by', 'call', 'cascade', 'case', 'change', |
| 31 | 'char', 'character', 'check', 'collate', 'column', |
| 32 | 'condition', 'constraint', 'continue', 'convert', 'create', |
| 33 | 'cross', 'current_date', 'current_time', 'current_timestamp', 'current_user', |
| 34 | 'cursor', 'database', 'databases', 'day_hour', 'day_microsecond', |
| 35 | 'day_minute', 'day_second', 'dec', 'decimal', 'declare', |
| 36 | 'default', 'delayed', 'delete', 'desc', 'describe', |
| 37 | 'deterministic', 'distinct', 'distinctrow', 'div', 'double', |
| 38 | 'drop', 'dual', 'each', 'else', 'elseif', |
| 39 | 'enclosed', 'escaped', 'exists', 'exit', 'explain', |
| 40 | 'false', 'fetch', 'float', 'float4', 'float8', |
| 41 | 'for', 'force', 'foreign', 'from', 'fulltext', |
| 42 | 'generated', 'get', 'grant', 'group', 'having', |
| 43 | 'high_priority', 'hour_microsecond', 'hour_minute', 'hour_second', 'if', |
| 44 | 'ignore', 'in', 'index', 'infile', 'inner', |
| 45 | 'inout', 'insensitive', 'insert', 'int', 'int1', |
| 46 | 'int2', 'int3', 'int4', 'int8', 'integer', |
| 47 | 'interval', 'into', 'io_after_gtids', 'io_before_gtids', 'is', |
| 48 | 'iterate', 'join', 'key', 'keys', 'kill', |
| 49 | 'leading', 'leave', 'left', 'like', 'limit', |
| 50 | 'linear', 'lines', 'load', 'localtime', 'localtimestamp', |
| 51 | 'lock', 'long', 'longblob', 'longtext', 'loop', |
| 52 | 'low_priority', 'master_bind', 'master_ssl_verify_server_cert', 'match', 'maxvalue', |
| 53 | 'mediumblob', 'mediumint', 'mediumtext', 'middleint', 'minute_microsecond', |
| 54 | 'minute_second', 'mod', 'modifies', 'natural', 'no_write_to_binlog', |
| 55 | 'not', 'null', 'numeric', 'on', 'optimize', |
| 56 | 'optimizer_costs', 'option', 'optionally', 'or', 'order', |
| 57 | 'out', 'outer', 'outfile', 'partition', 'precision', |
| 58 | 'primary', 'procedure', 'purge', 'range', 'read', |
| 59 | 'read_write', 'reads', 'real', 'references', 'regexp', |
| 60 | 'release', 'rename', 'repeat', 'replace', 'require', |
| 61 | 'resignal', 'restrict', 'return', 'revoke', 'right', |
| 62 | 'rlike', 'schema', 'schemas', 'second_microsecond', 'select', |
| 63 | 'sensitive', 'separator', 'set', 'show', 'signal', |
| 64 | 'smallint', 'spatial', 'specific', 'sql', 'sql_big_result', |
| 65 | 'sql_calc_found_rows', 'sql_small_result', 'sqlexception', 'sqlstate', 'sqlwarning', |
| 66 | 'ssl', 'starting', 'stored', 'straight_join', 'table', |
| 67 | 'terminated', 'then', 'tinyblob', 'tinyint', 'tinytext', |
| 68 | 'to', 'trailing', 'trigger', 'true', 'undo', |
| 69 | 'union', 'unique', 'unlock', 'unsigned', 'update', |
| 70 | 'usage', 'use', 'using', 'utc_date', 'utc_time', |
| 71 | 'utc_timestamp', 'values', 'varbinary', 'varchar', 'varcharacter', |
| 72 | 'varying', 'virtual', 'when', 'where', 'while', |
| 73 | 'with', 'write', 'xor', 'year_month', 'zerofill' |
| 74 | ]; |
| 75 | |
| 76 | /** |
| 77 | * Words that are similarly reserved for Cargo - thankfully, a much |
| 78 | * shorter list. |
| 79 | * |
| 80 | * @var string[] |
| 81 | */ |
| 82 | private static $cargoReservedWords = [ |
| 83 | 'holds', 'matches', 'near', 'within' |
| 84 | ]; |
| 85 | |
| 86 | /** |
| 87 | * FIXME: Should this throw an exception instead? This will |
| 88 | * enhance the method to be better tested. |
| 89 | * |
| 90 | * @param string $name The name of the table or field |
| 91 | * @param string $type The type of the field provided |
| 92 | * @return string|null |
| 93 | */ |
| 94 | public static function validateFieldOrTableName( $name, $type ) { |
| 95 | // We can just call text() on all of these wfMessage() calls, |
| 96 | // since the resulting text is passed to formatFieldError(), |
| 97 | // which HTML-encodes the text. |
| 98 | if ( preg_match( '/\s/', $name ) ) { |
| 99 | return wfMessage( "cargo-declare-validate-has-whitespace", $type, $name )->text(); |
| 100 | } elseif ( strpos( $name, '_' ) === 0 ) { |
| 101 | return wfMessage( "cargo-declare-validate-starts-underscore", $type, $name )->text(); |
| 102 | } elseif ( substr( $name, -1 ) === '_' ) { |
| 103 | return wfMessage( "cargo-declare-validate-ends-underscore", $type, $name )->text(); |
| 104 | } elseif ( strpos( $name, '__' ) !== false ) { |
| 105 | return wfMessage( "cargo-declare-validate-gt1-underscore", $type, $name )->text(); |
| 106 | } elseif ( preg_match( '/[\.,\-\'"<>(){}\[\]\\\\\/]/', $name ) ) { |
| 107 | return wfMessage( "cargo-declare-validate-bad-character", $type, $name, '.,-\'"<>(){}[]\/' )->text(); |
| 108 | } elseif ( in_array( strtolower( $name ), self::$sqlReservedWords ) ) { |
| 109 | return wfMessage( "cargo-declare-validate-name-sql-kw", $name, $type )->text(); |
| 110 | } elseif ( in_array( strtolower( $name ), self::$cargoReservedWords ) ) { |
| 111 | return wfMessage( "cargo-declare-validate-name-cargo-kw", $name, $type )->text(); |
| 112 | } |
| 113 | return null; |
| 114 | } |
| 115 | |
| 116 | /** |
| 117 | * Handles the #cargo_declare parser function. |
| 118 | * |
| 119 | * @param Parser $parser |
| 120 | * @return string |
| 121 | */ |
| 122 | public static function run( Parser $parser ) { |
| 123 | if ( !$parser->getTitle() || $parser->getTitle()->getNamespace() != NS_TEMPLATE ) { |
| 124 | return CargoUtils::formatError( wfMessage( "cargo-declare-must-from-template" )->parse() ); |
| 125 | } |
| 126 | |
| 127 | $params = func_get_args(); |
| 128 | array_shift( $params ); // we already know the $parser... |
| 129 | |
| 130 | $tableName = null; |
| 131 | $parentTables = []; |
| 132 | $drilldownTabsParams = []; |
| 133 | $tableSchema = new CargoTableSchema(); |
| 134 | $hasStartEvent = false; |
| 135 | $hasEndEvent = false; |
| 136 | foreach ( $params as $param ) { |
| 137 | $parts = explode( '=', $param, 2 ); |
| 138 | |
| 139 | if ( count( $parts ) != 2 ) { |
| 140 | continue; |
| 141 | } |
| 142 | $key = trim( $parts[0] ); |
| 143 | $value = trim( $parts[1] ); |
| 144 | if ( $key == '_table' ) { |
| 145 | $tableName = $value; |
| 146 | if ( in_array( strtolower( $tableName ), self::$sqlReservedWords ) ) { |
| 147 | return CargoUtils::formatError( wfMessage( "cargo-declare-tablenm-is-sql-kw", $tableName )->parse() ); |
| 148 | } elseif ( in_array( strtolower( $tableName ), self::$cargoReservedWords ) ) { |
| 149 | return CargoUtils::formatError( wfMessage( "cargo-declare-tablenm-is-cargo-kw", $tableName )->parse() ); |
| 150 | } |
| 151 | } elseif ( $key == '_parentTables' ) { |
| 152 | $tables = explode( ';', $value ); |
| 153 | foreach ( $tables as $table ) { |
| 154 | $parentTable = []; |
| 155 | $parentTableAlias = ''; |
| 156 | $foundMatch = preg_match( '/([^(]*)\s*\((.*)\)/s', $table, $matches ); |
| 157 | if ( $foundMatch ) { |
| 158 | $parentTableName = trim( $matches[1] ); |
| 159 | if ( count( $matches ) >= 2 ) { |
| 160 | $extraParams = explode( ',', $matches[2] ); |
| 161 | foreach ( $extraParams as $extraParam ) { |
| 162 | if ( $extraParam ) { |
| 163 | $extraParamParts = explode( '=', $extraParam, 2 ); |
| 164 | $extraParamKey = trim( $extraParamParts[0] ); |
| 165 | $extraParamValue = trim( $extraParamParts[1] ); |
| 166 | if ( $extraParamKey == '_localField' ) { |
| 167 | $parentTable['_localField'] = $extraParamValue; |
| 168 | } elseif ( $extraParamKey == '_remoteField' ) { |
| 169 | $parentTable['_remoteField'] = $extraParamValue; |
| 170 | } elseif ( $extraParamKey == '_alias' ) { |
| 171 | $parentTableAlias = $extraParamValue; |
| 172 | } else { |
| 173 | // It shouldn't be anything else. |
| 174 | return CargoUtils::formatError( wfMessage( "cargo-declare-parenttable-bad-parameter", $extraParamKey )->parse() ); |
| 175 | } |
| 176 | } |
| 177 | } |
| 178 | } |
| 179 | } else { |
| 180 | $parentTableName = trim( $table ); |
| 181 | } |
| 182 | if ( $parentTableName ) { |
| 183 | if ( !$parentTableAlias ) { |
| 184 | if ( array_key_exists( '_localField', $parentTable ) && |
| 185 | $parentTable['_localField'] != '_pageName' ) { |
| 186 | $parentTableAlias = strtolower( $parentTable['_localField'] ); |
| 187 | if ( array_key_exists( $parentTableAlias, $parentTables ) ) { |
| 188 | $count = |
| 189 | substr_count( implode( ',', array_keys( $parentTables ) ), |
| 190 | $parentTableAlias ); |
| 191 | $parentTableAlias .= "_$count"; |
| 192 | } |
| 193 | } else { |
| 194 | $parentTableAlias = CargoUtils::makeDifferentAlias( $parentTableName ); |
| 195 | if ( array_key_exists( $parentTableAlias, $parentTables ) ) { |
| 196 | $count = |
| 197 | substr_count( implode( ',', array_keys( $parentTables ) ), |
| 198 | $parentTableAlias ); |
| 199 | $parentTableAlias .= "_$count"; |
| 200 | } |
| 201 | } |
| 202 | } |
| 203 | if ( !array_key_exists( '_localField', $parentTable ) ) { |
| 204 | $parentTable['_localField'] = '_pageName'; |
| 205 | } |
| 206 | if ( !array_key_exists( '_remoteField', $parentTable ) ) { |
| 207 | $parentTable['_remoteField'] = '_pageName'; |
| 208 | } |
| 209 | $parentTable['Name'] = $parentTableName; |
| 210 | $parentTables[$parentTableAlias] = $parentTable; |
| 211 | |
| 212 | // Validate the parent table's name. |
| 213 | $validationError = self::validateFieldOrTableName( $parentTableName, 'parent table' ); |
| 214 | if ( $validationError !== null ) { |
| 215 | return CargoUtils::formatError( $validationError ); |
| 216 | } |
| 217 | } |
| 218 | } |
| 219 | } elseif ( $key == '_drilldownTabs' ) { |
| 220 | $value = CargoUtils::smartSplit( ',', $value ); |
| 221 | foreach ( $value as $tabValues ) { |
| 222 | $foundMatch = preg_match_all( '/([^(]*)\s*\(?([^)]*)\)?/s', $tabValues, $matches ); |
| 223 | if ( $foundMatch == false ) { |
| 224 | continue; |
| 225 | } |
| 226 | $tabName = $matches[1][0]; |
| 227 | $tabName = trim( $tabName ); |
| 228 | if ( !$tabName ) { |
| 229 | continue; |
| 230 | } |
| 231 | $extraParams = $matches[2][0]; |
| 232 | $params = preg_split( '~(?<!\\\)' . preg_quote( ';', '~' ) . '~', $extraParams ); |
| 233 | $tabParams = []; |
| 234 | foreach ( $params as $param ) { |
| 235 | if ( !$param ) { |
| 236 | continue; |
| 237 | } |
| 238 | $param = array_map( 'trim', explode( '=', $param, 2 ) ); |
| 239 | if ( $param[0] == 'fields' ) { |
| 240 | $fields = array_map( 'trim', explode( ',', $param[1] ) ); |
| 241 | $drilldownFields = []; |
| 242 | foreach ( $fields as $field ) { |
| 243 | $field = array_map( 'trim', explode( '=', $field ) ); |
| 244 | if ( count( $field ) == 2 ) { |
| 245 | $drilldownFields[$field[1]] = $field[0]; |
| 246 | } else { |
| 247 | $drilldownFields[] = $field[0]; |
| 248 | } |
| 249 | } |
| 250 | $tabParams[$param[0]] = $drilldownFields; |
| 251 | } else { |
| 252 | $tabParams[$param[0]] = $param[1]; |
| 253 | } |
| 254 | } |
| 255 | if ( !array_key_exists( 'format', $tabParams ) ) { |
| 256 | $tabParams['format'] = 'category'; |
| 257 | } |
| 258 | if ( !array_key_exists( 'fields', $tabParams ) ) { |
| 259 | $tabParams['fields'] = [ 'Title' => '_pageName' ]; |
| 260 | } |
| 261 | $drilldownTabsParams[$tabName] = $tabParams; |
| 262 | } |
| 263 | } else { |
| 264 | $fieldName = $key; |
| 265 | $fieldDescriptionStr = $value; |
| 266 | // Validate field name. |
| 267 | $validationError = self::validateFieldOrTableName( $fieldName, 'field' ); |
| 268 | if ( $validationError !== null ) { |
| 269 | return CargoUtils::formatError( $validationError ); |
| 270 | } |
| 271 | |
| 272 | try { |
| 273 | $fieldDescription = CargoFieldDescription::newFromString( $fieldDescriptionStr ); |
| 274 | } catch ( Exception $e ) { |
| 275 | return CargoUtils::formatError( $e->getMessage() ); |
| 276 | } |
| 277 | if ( $fieldDescription == null ) { |
| 278 | return CargoUtils::formatError( wfMessage( "cargo-declare-field-parse-fail", $fieldName )->parse() ); |
| 279 | } |
| 280 | if ( $fieldDescription->mIsHierarchy == true && $fieldDescription->mType == 'Coordinates' ) { |
| 281 | return CargoUtils::formatError( wfMessage( "cargo-declare-bad-hierarchy-type", $fieldDescription->mType )->parse() ); |
| 282 | } |
| 283 | if ( $fieldDescription->mType == "Start date" || $fieldDescription->mType == "Start datetime" ) { |
| 284 | if ( !$hasStartEvent ) { |
| 285 | $hasStartEvent = true; |
| 286 | } else { |
| 287 | return CargoUtils::formatError( wfMessage( "cargo-declare-ne1-startdttm" )->parse() ); |
| 288 | } |
| 289 | } |
| 290 | if ( $fieldDescription->mType == "End date" || $fieldDescription->mType == "End datetime" ) { |
| 291 | if ( !$hasEndEvent && $hasStartEvent ) { |
| 292 | $hasEndEvent = true; |
| 293 | } elseif ( !$hasStartEvent ) { |
| 294 | // if End date/datetime is declared before Start date/datetime type field |
| 295 | return CargoUtils::formatError( wfMessage( "cargo-declare-def-start-before-end" )->parse() ); |
| 296 | } else { |
| 297 | return CargoUtils::formatError( wfMessage( "cargo-declare-ne1-enddttm" )->parse() ); |
| 298 | } |
| 299 | } |
| 300 | $tableSchema->mFieldDescriptions[$fieldName] = $fieldDescription; |
| 301 | } |
| 302 | } |
| 303 | |
| 304 | // Validate table name. |
| 305 | if ( $tableName == '' ) { |
| 306 | return CargoUtils::formatError( wfMessage( "cargo-notable" )->parse() ); |
| 307 | } |
| 308 | $validationError = self::validateFieldOrTableName( $tableName, 'table' ); |
| 309 | if ( $validationError !== null ) { |
| 310 | return CargoUtils::formatError( $validationError ); |
| 311 | } |
| 312 | |
| 313 | // Validate table name. |
| 314 | |
| 315 | $cdb = CargoUtils::getDB(); |
| 316 | |
| 317 | foreach ( $parentTables as $extraParams ) { |
| 318 | $parentTableName = $extraParams['Name']; |
| 319 | $localField = $extraParams['_localField']; |
| 320 | $remoteField = $extraParams['_remoteField']; |
| 321 | |
| 322 | // Validate that parent table exists. |
| 323 | if ( !$cdb->tableExists( $parentTableName ) ) { |
| 324 | // orig, gives wrong tablename |
| 325 | return CargoUtils::formatError( wfMessage( "cargo-declare-parenttable-not-exist", $parentTableName )->parse() ); |
| 326 | } |
| 327 | |
| 328 | // Validate that remote field exists. |
| 329 | if ( !$cdb->fieldExists( $parentTableName, $remoteField ) ) { |
| 330 | return CargoUtils::formatError( wfMessage( "cargo-declare-parenttable-no-field", $parentTableName, $remoteField )->parse() ); |
| 331 | } |
| 332 | |
| 333 | // Validate that local field exists; |
| 334 | // this needs to be validated against what is declared |
| 335 | // rather than against the DB, since the table may |
| 336 | // not be built yet. |
| 337 | $parentLocalFieldOK = false; |
| 338 | // Declared field names are stored in CargoTableSchema() |
| 339 | // object $tableSchema - check declared field names. |
| 340 | foreach ( $tableSchema->mFieldDescriptions as $a => $b ) { |
| 341 | if ( $a == $localField ) { |
| 342 | $parentLocalFieldOK = true; |
| 343 | } |
| 344 | } |
| 345 | // Check implied field name _pageName. |
| 346 | if ( $localField == "_pageName" ) { |
| 347 | $parentLocalFieldOK = true; |
| 348 | } |
| 349 | if ( !$parentLocalFieldOK ) { |
| 350 | return CargoUtils::formatError( wfMessage( "cargo-declare-invalid-localfield", $localField )->parse() ); |
| 351 | } |
| 352 | } |
| 353 | |
| 354 | $parserOutput = $parser->getOutput(); |
| 355 | |
| 356 | CargoUtils::setParserOutputPageProperty( $parserOutput, 'CargoTableName', $tableName ); |
| 357 | CargoUtils::setParserOutputPageProperty( $parserOutput, 'CargoParentTables', serialize( $parentTables ) ); |
| 358 | CargoUtils::setParserOutputPageProperty( $parserOutput, 'CargoDrilldownTabsParams', serialize( $drilldownTabsParams ) ); |
| 359 | CargoUtils::setParserOutputPageProperty( $parserOutput, 'CargoFields', $tableSchema->toDBString() ); |
| 360 | |
| 361 | // Link to the Special:CargoTables page for this table, if it |
| 362 | // exists already - otherwise, explain that it needs to be |
| 363 | // created. |
| 364 | $text = wfMessage( 'cargo-definestable', $tableName )->text(); |
| 365 | $cdb = CargoUtils::getDB(); |
| 366 | if ( $cdb->tableExists( $tableName ) ) { |
| 367 | $ct = SpecialPage::getTitleFor( 'CargoTables' ); |
| 368 | $pageName = $ct->getPrefixedText() . "/$tableName"; |
| 369 | $viewTableMsg = wfMessage( 'cargo-cargotables-viewtablelink' )->parse(); |
| 370 | $text .= " [[$pageName|$viewTableMsg]]."; |
| 371 | } else { |
| 372 | $text .= ' ' . wfMessage( 'cargo-tablenotcreated' )->text(); |
| 373 | } |
| 374 | |
| 375 | // Also link to the replacement table, if it exists. |
| 376 | if ( $cdb->tableExists( $tableName . '__NEXT' ) ) { |
| 377 | $text .= ' ' . wfMessage( "cargo-cargotables-replacementgenerated" )->parse(); |
| 378 | $ctPage = CargoUtils::getSpecialPage( 'CargoTables' ); |
| 379 | $ctURL = $ctPage->getPageTitle()->getFullURL(); |
| 380 | $viewURL = $ctURL . '/' . $tableName; |
| 381 | $viewURL .= strpos( $viewURL, '?' ) ? '&' : '?'; |
| 382 | $viewURL .= "_replacement"; |
| 383 | $viewReplacementTableMsg = wfMessage( 'cargo-cargotables-viewreplacementlink' )->parse(); |
| 384 | $text .= "; [$viewURL $viewReplacementTableMsg]."; |
| 385 | } |
| 386 | |
| 387 | // For use by the Page Exchange extension and possibly others, |
| 388 | // to automatically generate a Cargo table after the template |
| 389 | // that declares it is created. |
| 390 | if ( array_key_exists( 'createData', self::$settings ) ) { |
| 391 | $userID = self::$settings['userID']; |
| 392 | $user = MediaWikiServices::getInstance() |
| 393 | ->getUserFactory() |
| 394 | ->newFromId( (int)$userID ); |
| 395 | $title = $parser->getTitle(); |
| 396 | $templatePageID = $title->getArticleID(); |
| 397 | CargoUtils::recreateDBTablesForTemplate( |
| 398 | $templatePageID, |
| 399 | $createReplacement = false, |
| 400 | $user, |
| 401 | $tableName, |
| 402 | $tableSchema, |
| 403 | $parentTables |
| 404 | ); |
| 405 | |
| 406 | // Populate (or re-populate) the table with any |
| 407 | // existing data from the wiki. |
| 408 | // @todo This should cycle through *all* the pages, |
| 409 | // 500 at a time, in case there are a lot. |
| 410 | $titlesToStore = CargoUtils::getTemplateLinksTo( $title, [ 'LIMIT' => 1000 ] ); |
| 411 | $jobs = []; |
| 412 | foreach ( $titlesToStore as $titleToStore ) { |
| 413 | $jobs[] = new CargoPopulateTableJob( $titleToStore, [ 'dbTableName' => $tableName ] ); |
| 414 | } |
| 415 | if ( method_exists( MediaWikiServices::class, 'getJobQueueGroup' ) ) { |
| 416 | // MW 1.37+ |
| 417 | MediaWikiServices::getInstance()->getJobQueueGroup()->push( $jobs ); |
| 418 | } else { |
| 419 | JobQueueGroup::singleton()->push( $jobs ); |
| 420 | } |
| 421 | |
| 422 | // Ensure that this code doesn't get called more than |
| 423 | // once per page save. |
| 424 | unset( self::$settings['createData'] ); |
| 425 | } |
| 426 | |
| 427 | return $text; |
| 428 | } |
| 429 | |
| 430 | } |