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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | * |
| 18 | * @file |
| 19 | * @author Szymon Świerkosz |
| 20 | * @author Kunal Mehta |
| 21 | */ |
| 22 | |
| 23 | namespace MediaWiki\GlobalCssJs; |
| 24 | |
| 25 | use InvalidArgumentException; |
| 26 | use MediaWiki\MediaWikiServices; |
| 27 | use MediaWiki\ResourceLoader\WikiModule; |
| 28 | use MediaWiki\WikiMap\WikiMap; |
| 29 | use Wikimedia\Rdbms\IDatabase; |
| 30 | |
| 31 | /** |
| 32 | * Base class for global modules. |
| 33 | * |
| 34 | * This module does not provide any resources directly. |
| 35 | * It instructs ResourceLoader to load a module from a remote site. |
| 36 | */ |
| 37 | abstract class ResourceLoaderGlobalModule extends WikiModule { |
| 38 | |
| 39 | /** |
| 40 | * name of global wiki database |
| 41 | * @var string |
| 42 | */ |
| 43 | protected $wiki; |
| 44 | |
| 45 | /** |
| 46 | * name of a ResourceLoader source pointing to the global wiki |
| 47 | * @var string |
| 48 | */ |
| 49 | protected $source; |
| 50 | |
| 51 | /** |
| 52 | * Either 'style' or 'script' |
| 53 | * |
| 54 | * @var string |
| 55 | */ |
| 56 | protected $type; |
| 57 | |
| 58 | /** @inheritDoc */ |
| 59 | public function __construct( $options ) { |
| 60 | foreach ( $options as $member => $option ) { |
| 61 | switch ( $member ) { |
| 62 | case 'wiki': |
| 63 | case 'source': |
| 64 | $this->{$member} = (string)$option; |
| 65 | break; |
| 66 | case 'type': |
| 67 | if ( $option !== 'style' && $option !== 'script' ) { |
| 68 | throw new InvalidArgumentException( |
| 69 | "type must be either 'style' or 'script', not '$option'" |
| 70 | ); |
| 71 | } |
| 72 | $this->type = $option; |
| 73 | break; |
| 74 | } |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * @return string |
| 80 | */ |
| 81 | public function getSource() { |
| 82 | return $this->getCurrentWikiId() === $this->wiki ? 'local' : $this->source; |
| 83 | } |
| 84 | |
| 85 | /** |
| 86 | * @return string |
| 87 | */ |
| 88 | protected function getCurrentWikiId() { |
| 89 | return WikiMap::getCurrentWikiId(); |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * @return IDatabase |
| 94 | */ |
| 95 | protected function getDB() { |
| 96 | $lbFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory(); |
| 97 | if ( $this->wiki === $this->getCurrentWikiId() ) { |
| 98 | $lb = $lbFactory->getMainLB(); |
| 99 | return $lb->getConnection( DB_REPLICA ); |
| 100 | } else { |
| 101 | $lb = $lbFactory->getMainLB( $this->wiki ); |
| 102 | return $lb->getConnection( DB_REPLICA, [], $this->wiki ); |
| 103 | } |
| 104 | } |
| 105 | } |