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<?php |
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declare(strict_types=1); |
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/** |
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* Minotaur |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not |
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* use this file except in compliance with the License. You may obtain a copy of |
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* the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
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* License for the specific language governing permissions and limitations under |
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* the License. |
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* |
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* @copyright 2015-2017 Appertly |
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* @license Apache-2.0 |
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*/ |
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namespace Minotaur\View; |
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use Caridea\Container\EmptyContainer; |
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/** |
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* Creates Views and broadcasts the render event. |
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*/ |
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class Service implements \Caridea\Container\ContainerAware |
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{ |
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use \Caridea\Container\ContainerSetter; |
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/** |
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* @var \Minotaur\View\Page The page, or null |
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*/ |
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private $page; |
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/** |
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* @var \Minotaur\View\BlockLayout The block layout, or null |
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*/ |
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private $blocks; |
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/** |
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* @var array<string> List of statuses |
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*/ |
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private const STATUSES = ['msg-warning', 'msg-info', 'msg-error']; |
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/** |
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* Creates a new ViewService. |
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* |
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* @param $container - The dependency injection container |
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*/ |
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public function __construct(?\Caridea\Container\Container $container) |
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{ |
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$this->container = $container ?? new EmptyContainer(); |
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} |
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/** |
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* Gets the Page for this request (created lazily). |
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* |
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* @param string $title The page title |
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* @return \Minotaur\View\Page A Page |
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*/ |
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public function getPage(string $title): Page |
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{ |
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if ($this->page === null) { |
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$page = (new Page())->setTitle($this->getPageTitle($title)); |
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$this->callPageVisitors($page); |
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$this->page = $page; |
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} |
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return $this->page; |
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} |
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/** |
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* Calls the page visitors. |
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* |
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* @param \Minotaur\View\Page $page The page to visit |
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*/ |
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protected function callPageVisitors(Page $page) |
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{ |
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return array_map(function (PageVisitor $v) use ($page) { |
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$v->visit($page); |
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}, $this->container->getByType(PageVisitor::class)); |
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} |
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/** |
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* Generates a page title. |
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* |
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* @param string|null $title The page title |
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* @return string The formatted page title |
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*/ |
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protected function getPageTitle(?string $title): string |
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{ |
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return sprintf( |
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$this->container->get('web.ui.title.template'), |
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$title, |
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$this->container->get('system.name') |
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); |
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} |
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/** |
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* Sets a Flash Message. |
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* |
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* @param string $name The status |
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* @param string $value The message |
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* @param bool $current Whether to add message to the current request |
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*/ |
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public function setFlashMessage(string $name, string $value, bool $current = false): void |
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{ |
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$session = $this->container->getFirst(\Caridea\Session\Session::class); |
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if ($session === null) { |
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throw new \UnexpectedValueException("No Session Manager found"); |
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} |
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$session->resume() || $session->start(); |
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$flash = $this->container->getFirst(\Caridea\Session\FlashPlugin::class); |
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if ($flash === null) { |
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throw new \UnexpectedValueException("No Flash Plugin found"); |
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} |
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$flash->set($name, $value, $current); |
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} |
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/** |
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* Clears Flash Messages. |
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* |
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* @param bool $current Whether to add message to the current request |
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*/ |
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public function clearFlashMessages(bool $current = false): void |
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{ |
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$session = $this->container->getFirst(\Caridea\Session\Session::class); |
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if ($session === null) { |
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throw new \UnexpectedValueException("No Session Manager found"); |
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} |
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$session->resume() || $session->start(); |
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$flash = $this->container->getFirst(\Caridea\Session\FlashPlugin::class); |
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if ($flash === null) { |
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throw new \UnexpectedValueException("No Flash Plugin found"); |
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} |
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$flash->clear($current); |
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} |
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/** |
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* Keeps all current flash messages for the next request. |
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*/ |
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public function keepFlashMessages(): void |
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{ |
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$session = $this->container->getFirst(\Caridea\Session\Session::class); |
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if ($session === null) { |
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throw new \UnexpectedValueException("No Session Manager found"); |
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} |
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$session->resume() || $session->start(); |
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$flash = $this->container->getFirst(\Caridea\Session\FlashPlugin::class); |
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if ($flash === null) { |
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throw new \UnexpectedValueException("No Flash Plugin found"); |
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} |
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$flash->keep(); |
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} |
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/** |
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* Gets any flash messages in the session keyed by status. |
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* |
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* @return array<string,array<string>> map of flash messages |
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*/ |
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public function getFlashMessages(): array |
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{ |
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$plugin = $this->container->getFirst(\Caridea\Session\FlashPlugin::class); |
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if ($plugin === null) { |
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throw new \UnexpectedValueException("No Flash Plugin found"); |
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} |
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$map = []; |
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foreach (self::STATUSES as $status) { |
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$messages = $plugin->getCurrent($status); |
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if (!$messages) { |
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continue; |
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} |
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$vector = []; |
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if (is_iterable($messages)) { |
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foreach ($messages as $message) { |
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$vector[] = (string) $message; |
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} |
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} else { |
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$vector[] = (string) $messages; |
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} |
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$map[$status] = $vector; |
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} |
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return $map; |
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} |
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/** |
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* Gets the last request that the Dispatcher sent to a controller. |
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* |
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* @return \Psr\Http\Message\ServerRequestInterface The last dispatched request, or `null` |
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*/ |
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public function getDispatchedRequest(): ?\Psr\Http\Message\ServerRequestInterface |
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{ |
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$c = $this->container ?? new EmptyContainer(); |
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$d = current($c->getByType(\Minotaur\Route\Dispatcher::class)); |
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return $d === null ? null : $d->getLastDispatchedRequest(); |
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} |
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/** |
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* Gets all blocks registered for a given region |
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* |
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* @param string $region The region to search |
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* @return array<\Minotaur\View\Block> The found blocks in that region, or an empty array. |
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*/ |
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public function getBlocks(string $region): array |
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{ |
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$c = $this->container ?? new EmptyContainer(); |
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$blocks = []; |
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foreach ($this->getBlockLayout()->get($region) as $name) { |
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$blocks[] = $c->named($name, Block::class); |
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} |
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return $blocks; |
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} |
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protected function getBlockLayout(): BlockLayout |
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{ |
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if ($this->blocks === null) { |
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$layout = new BlockLayout(); |
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$c = $this->container ?? new EmptyContainer(); |
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$layouts = $c->getByType(BlockLayout::class); |
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if (count($layouts) === 0) { |
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foreach ($c->getByType(Block::class) as $name => $block) { |
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if (method_exists($block, 'getRegion')) { |
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$region = $block->getRegion(); |
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$order = !method_exists($block, 'getOrder') ? 0 : |
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(int) $block->getOrder(); |
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$layout->add($region, $order, $name); |
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} |
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} |
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} else { |
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foreach ($layouts as $bl) { |
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$layout->merge($bl); |
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} |
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} |
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$this->blocks = $layout; |
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} |
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return $this->blocks; |
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} |
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/** |
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* Gets any `Minotaur\Db\DbRefResolver` objects in the container. |
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* |
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* @return array<\Minotaur\Db\DbRefResolver> The DbRefResolver objects found. |
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*/ |
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public function getDbRefResolvers(): array |
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{ |
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return $this->container->getByType(\Minotaur\Db\DbRefResolver::class); |
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} |
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/** |
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* Gets any `Minotaur\View\EntityLinker` objects in the container. |
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* |
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* @return array<\Minotaur\View\EntityLinker> The EntityLinker objects found. |
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*/ |
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public function getEntityLinkers(): array |
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{ |
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return $this->container->getByType(EntityLinker::class); |
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} |
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/** |
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* Gets the CSRF token. |
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* |
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* @return string|null The CSRF token or `null` |
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* @throws \UnexpectedValueException if the plugin wasn't in the container |
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*/ |
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public function getCsrfToken(): ?string |
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{ |
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$plugin = $this->container->getFirst(\Caridea\Session\CsrfPlugin::class); |
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if ($plugin === null) { |
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throw new \UnexpectedValueException("No CSRF Plugin found"); |
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} |
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return $plugin->getValue(); |
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} |
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/** |
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* Checks to see if the provided token matches the session CSRF token. |
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* |
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* @param string the provided token |
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* @return bool whether the provided token matches |
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* @throws \UnexpectedValueException if the plugin wasn't in the container |
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*/ |
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public function isCsrfValid(string $token): bool |
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{ |
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$plugin = $this->container->getFirst(\Caridea\Session\CsrfPlugin::class); |
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if ($plugin === null) { |
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throw new \UnexpectedValueException("No CSRF Plugin found"); |
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} |
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return $plugin->isValid($token); |
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} |
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} |
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