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| 1 | <?php |
| 2 | |
| 3 | namespace CirrusSearch\Query; |
| 4 | |
| 5 | use CirrusSearch\CrossSearchStrategy; |
| 6 | use CirrusSearch\Parser\AST\KeywordFeatureNode; |
| 7 | use CirrusSearch\Query\Builder\QueryBuildingContext; |
| 8 | use CirrusSearch\Search\Filters; |
| 9 | use CirrusSearch\Search\SearchContext; |
| 10 | use CirrusSearch\WarningCollector; |
| 11 | use Elastica\Query\AbstractQuery; |
| 12 | use Title; |
| 13 | |
| 14 | /** |
| 15 | * We emulate template syntax here as best as possible, so things in NS_MAIN |
| 16 | * are prefixed with ":" and things in NS_TEMPATE don't have a prefix at all. |
| 17 | * Since we don't actually index templates like that, munge the query here. |
| 18 | */ |
| 19 | class HasTemplateFeature extends SimpleKeywordFeature implements FilterQueryFeature { |
| 20 | public const MAX_CONDITIONS = 256; |
| 21 | |
| 22 | /** |
| 23 | * @return string[] |
| 24 | */ |
| 25 | protected function getKeywords() { |
| 26 | return [ 'hastemplate' ]; |
| 27 | } |
| 28 | |
| 29 | /** |
| 30 | * @param SearchContext $context |
| 31 | * @param string $key |
| 32 | * @param string $value |
| 33 | * @param string $quotedValue |
| 34 | * @param bool $negated |
| 35 | * @param string $delimiter |
| 36 | * @param string $suffix |
| 37 | * @return array |
| 38 | */ |
| 39 | public function doApplyExtended( SearchContext $context, $key, $value, $quotedValue, $negated, |
| 40 | $delimiter, $suffix |
| 41 | ) { |
| 42 | $filter = $this->doGetFilterQuery( |
| 43 | $this->parseValue( $key, $value, $quotedValue, $delimiter, $suffix, $context ) ); |
| 44 | return [ $filter, false ]; |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * @param string $key |
| 49 | * @param string $value |
| 50 | * @param string $quotedValue |
| 51 | * @param string $valueDelimiter |
| 52 | * @param string $suffix |
| 53 | * @param WarningCollector $warningCollector |
| 54 | * @return array|false|null |
| 55 | */ |
| 56 | public function parseValue( $key, $value, $quotedValue, $valueDelimiter, $suffix, WarningCollector $warningCollector ) { |
| 57 | $values = explode( '|', $value, self::MAX_CONDITIONS + 1 ); |
| 58 | if ( count( $values ) > self::MAX_CONDITIONS ) { |
| 59 | $warningCollector->addWarning( |
| 60 | 'cirrussearch-feature-too-many-conditions', |
| 61 | $key, |
| 62 | self::MAX_CONDITIONS |
| 63 | ); |
| 64 | $values = array_slice( |
| 65 | $values, |
| 66 | 0, |
| 67 | self::MAX_CONDITIONS |
| 68 | ); |
| 69 | } |
| 70 | $templates = []; |
| 71 | foreach ( $values as $template ) { |
| 72 | if ( strpos( $template, ':' ) === 0 ) { |
| 73 | $template = substr( $template, 1 ); |
| 74 | } else { |
| 75 | $title = Title::newFromText( $template ); |
| 76 | if ( $title && $title->getNamespace() === NS_MAIN ) { |
| 77 | $template = Title::makeTitle( NS_TEMPLATE, $title->getDBkey() ) |
| 78 | ->getPrefixedText(); |
| 79 | } |
| 80 | } |
| 81 | $templates[] = $template; |
| 82 | } |
| 83 | return [ 'templates' => $templates, 'case_sensitive' => $valueDelimiter == '"' ]; |
| 84 | } |
| 85 | |
| 86 | /** |
| 87 | * @param KeywordFeatureNode $node |
| 88 | * @return CrossSearchStrategy |
| 89 | */ |
| 90 | public function getCrossSearchStrategy( KeywordFeatureNode $node ) { |
| 91 | return CrossSearchStrategy::allWikisStrategy(); |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * @param string[][] $parsedValue |
| 96 | * @return AbstractQuery |
| 97 | */ |
| 98 | protected function doGetFilterQuery( array $parsedValue ) { |
| 99 | $caseSensitive = $parsedValue['case_sensitive']; |
| 100 | |
| 101 | return Filters::booleanOr( array_map( |
| 102 | static function ( $v ) use ( $caseSensitive ) { |
| 103 | return QueryHelper::matchPage( $caseSensitive ? 'template.keyword' : 'template', $v ); |
| 104 | }, |
| 105 | $parsedValue['templates'] |
| 106 | ) ); |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * @param KeywordFeatureNode $node |
| 111 | * @param QueryBuildingContext $context |
| 112 | * @return AbstractQuery|null |
| 113 | */ |
| 114 | public function getFilterQuery( KeywordFeatureNode $node, QueryBuildingContext $context ) { |
| 115 | return $this->doGetFilterQuery( $node->getParsedValue() ); |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * Applies the detected keyword from the search term. May apply changes |
| 120 | * either to $context directly, or return a filter to be added. |
| 121 | * |
| 122 | * @param SearchContext $context |
| 123 | * @param string $key The keyword |
| 124 | * @param string $value The value attached to the keyword with quotes stripped and escaped |
| 125 | * quotes un-escaped. |
| 126 | * @param string $quotedValue The original value in the search string, including quotes if used |
| 127 | * @param bool $negated Is the search negated? Not used to generate the returned AbstractQuery, |
| 128 | * that will be negated as necessary. Used for any other building/context necessary. |
| 129 | * @return array Two element array, first an AbstractQuery or null to apply to the |
| 130 | * query. Second a boolean indicating if the quotedValue should be kept in the search |
| 131 | * string. |
| 132 | */ |
| 133 | protected function doApply( SearchContext $context, $key, $value, $quotedValue, $negated ) { |
| 134 | // not used |
| 135 | $filter = $this->doGetFilterQuery( |
| 136 | $this->parseValue( $key, $value, $quotedValue, '', '', $context ) ); |
| 137 | return [ $filter, false ]; |
| 138 | } |
| 139 | } |