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| 1 | <?php |
| 2 | |
| 3 | namespace Flow\Actions; |
| 4 | |
| 5 | use Flow\Container; |
| 6 | use Flow\Data\ManagerGroup; |
| 7 | use Flow\Exception\FlowException; |
| 8 | use Flow\Model\UUID; |
| 9 | use Flow\Model\Workflow; |
| 10 | use Flow\View; |
| 11 | use Flow\WorkflowLoaderFactory; |
| 12 | use MediaWiki\Actions\Action; |
| 13 | use MediaWiki\Context\IContextSource; |
| 14 | use MediaWiki\Exception\ErrorPageError; |
| 15 | use MediaWiki\Output\OutputPage; |
| 16 | use MediaWiki\Page\Article; |
| 17 | use MediaWiki\Request\WebRequest; |
| 18 | use MediaWiki\Title\Title; |
| 19 | |
| 20 | class FlowAction extends Action { |
| 21 | /** |
| 22 | * @var string |
| 23 | */ |
| 24 | protected $actionName; |
| 25 | |
| 26 | /** |
| 27 | * @param Article $article |
| 28 | * @param IContextSource $source |
| 29 | * @param string $actionName |
| 30 | */ |
| 31 | public function __construct( Article $article, IContextSource $source, $actionName ) { |
| 32 | parent::__construct( $article, $source ); |
| 33 | $this->actionName = $actionName; |
| 34 | } |
| 35 | |
| 36 | public function doesWrites() { |
| 37 | return true; |
| 38 | } |
| 39 | |
| 40 | /** |
| 41 | * @return string |
| 42 | */ |
| 43 | public function getName() { |
| 44 | return $this->actionName; |
| 45 | } |
| 46 | |
| 47 | public function show() { |
| 48 | $this->showForAction( $this->getName() ); |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * @param string $action |
| 53 | * @param OutputPage|null $output |
| 54 | * @throws ErrorPageError |
| 55 | * @throws FlowException |
| 56 | */ |
| 57 | public function showForAction( $action, ?OutputPage $output = null ) { |
| 58 | $container = Container::getContainer(); |
| 59 | $output ??= $this->context->getOutput(); |
| 60 | $title = $this->getTitle(); |
| 61 | |
| 62 | $titleContentModel = $title->getContentModel(); |
| 63 | if ( $titleContentModel !== CONTENT_MODEL_FLOW_BOARD ) { |
| 64 | // If we make it to this method, something thinks it's Flow. |
| 65 | // However, if we get here the Title class thinks otherwise. |
| 66 | |
| 67 | // This may mean it is a non-Flow page in a Flow namespace, if |
| 68 | // page_content_model is populated but rev_content_model is not. |
| 69 | |
| 70 | throw new ErrorPageError( 'nosuchaction', 'flow-action-wrong-title-content-model', [ $titleContentModel ] ); |
| 71 | } |
| 72 | |
| 73 | // @todo much of this seems to duplicate BoardContent::getParserOutput |
| 74 | $view = new View( |
| 75 | $container['url_generator'], |
| 76 | $container['lightncandy'], |
| 77 | $output, |
| 78 | $container['flow_actions'] |
| 79 | ); |
| 80 | |
| 81 | $request = $this->context->getRequest(); |
| 82 | |
| 83 | // BC for urls pre july 2014 with workflow query parameter |
| 84 | $redirect = $this->getRedirectUrl( $request, $title ); |
| 85 | if ( $redirect ) { |
| 86 | $output->redirect( $redirect ); |
| 87 | return; |
| 88 | } |
| 89 | |
| 90 | $action = $request->getVal( 'action', 'view' ); |
| 91 | /** @var WorkflowLoaderFactory $factory */ |
| 92 | $factory = $container['factory.loader.workflow']; |
| 93 | $loader = $factory->createWorkflowLoader( $title ); |
| 94 | |
| 95 | if ( $title->getNamespace() === NS_TOPIC && $loader->getWorkflow()->getType() !== 'topic' ) { |
| 96 | // @todo better error handling |
| 97 | throw new FlowException( 'Invalid title: uuid is not a topic' ); |
| 98 | } |
| 99 | |
| 100 | $view->show( $loader, $action ); |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Flow used to output some permalink urls with workflow ids in them. Each |
| 105 | * workflow now has its own page, so those have been deprecated. This checks |
| 106 | * a web request for the old workflow parameter and returns a url to redirect |
| 107 | * to if necessary. |
| 108 | * |
| 109 | * @param WebRequest $request |
| 110 | * @param Title $title |
| 111 | * @return string URL to redirect to or blank string for no redirect |
| 112 | */ |
| 113 | protected function getRedirectUrl( WebRequest $request, Title $title ) { |
| 114 | $workflow = $request->getVal( 'workflow', null ); |
| 115 | $workflowId = $workflow !== null ? UUID::create( strtolower( $workflow ) ) : null; |
| 116 | if ( !$workflowId ) { |
| 117 | return ''; |
| 118 | } |
| 119 | |
| 120 | /** @var ManagerGroup $storage */ |
| 121 | $storage = Container::get( 'storage' ); |
| 122 | /** @var Workflow $workflow */ |
| 123 | $workflow = $storage->get( 'Workflow', $workflowId ); |
| 124 | |
| 125 | // The uuid points to a non-existant workflow |
| 126 | if ( !$workflow ) { |
| 127 | return ''; |
| 128 | } |
| 129 | |
| 130 | // The uuid points to the current page |
| 131 | $redirTitle = $workflow->getArticleTitle(); |
| 132 | if ( $redirTitle->equals( $title ) ) { |
| 133 | return ''; |
| 134 | } |
| 135 | |
| 136 | // We need to redirect |
| 137 | return $redirTitle->getLinkURL( |
| 138 | array_diff_key( $request->getValues(), [ 'title' => '', 'workflow' => '' ] ) |
| 139 | ); |
| 140 | } |
| 141 | } |