360 lines
9.0 KiB
PHP
360 lines
9.0 KiB
PHP
<?php
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/**
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* @package Grav\Plugin\Admin
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*
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* @copyright Copyright (c) 2015 - 2021 Trilby Media, LLC. All rights reserved.
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* @license MIT License; see LICENSE file for details.
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*/
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declare(strict_types=1);
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namespace Grav\Plugin\Admin\Controllers;
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use Grav\Common\Config\Config;
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use Grav\Common\Data\Blueprint;
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use Grav\Common\Grav;
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use Grav\Common\Language\Language;
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use Grav\Common\Page\Interfaces\PageInterface;
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use Grav\Common\Page\Page;
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use Grav\Common\Page\Pages;
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use Grav\Common\Uri;
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use Grav\Common\User\Interfaces\UserInterface;
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use Grav\Common\Utils;
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use Grav\Framework\Controller\Traits\ControllerResponseTrait;
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use Grav\Framework\RequestHandler\Exception\PageExpiredException;
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use Grav\Framework\Session\SessionInterface;
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use Grav\Plugin\Admin\Admin;
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use Grav\Plugin\Admin\AdminForm;
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use Psr\Http\Message\ResponseInterface;
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use Psr\Http\Message\ServerRequestInterface;
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use RocketTheme\Toolbox\Session\Message;
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abstract class AdminController
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{
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use ControllerResponseTrait {
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createRedirectResponse as traitCreateRedirectResponse;
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getErrorJson as traitGetErrorJson;
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}
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/** @var string */
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protected $nonce_action = 'admin-form';
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/** @var string */
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protected $nonce_name = 'admin-nonce';
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/** @var Grav */
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protected $grav;
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/** @var PageInterface */
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protected $page;
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/** @var AdminForm|null */
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protected $form;
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public function __construct(Grav $grav)
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{
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$this->grav = $grav;
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}
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/**
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* @return PageInterface|null
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*/
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public function getPage(): ?PageInterface
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{
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return $this->page;
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}
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/**
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* Get currently active form.
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*
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* @return AdminForm|null
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*/
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public function getActiveForm(): ?AdminForm
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{
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if (null === $this->form) {
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$post = $this->getPost();
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$active = $post['__form-name__'] ?? null;
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$this->form = $active ? $this->getForm($active) : null;
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}
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return $this->form;
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}
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/**
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* Get a form.
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*
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* @param string $name
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* @param array $options
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* @return AdminForm|null
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*/
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public function getForm(string $name, array $options = []): ?AdminForm
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{
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$post = $this->getPost();
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$page = $this->getPage();
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$forms = $page ? $page->forms() : [];
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$blueprint = $forms[$name] ?? null;
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if (null === $blueprint) {
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return null;
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}
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$active = $post['__form-name__'] ?? null;
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$unique_id = $active && $active === $name ? ($post['__unique_form_id__'] ?? null) : null;
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$options += [
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'unique_id' => $unique_id,
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'blueprint' => new Blueprint(null, ['form' => $blueprint]),
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'submit_method' => $this->getFormSubmitMethod($name),
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'nonce_name' => $this->nonce_name,
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'nonce_action' => $this->nonce_action,
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];
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return new AdminForm($name, $options);
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}
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abstract protected function getFormSubmitMethod(string $name): callable;
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/**
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* @param string $route
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* @param string|null $lang
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* @return string
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*/
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public function getAdminUrl(string $route, string $lang = null): string
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{
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/** @var Pages $pages */
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$pages = $this->grav['pages'];
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$admin = $this->getAdmin();
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return $pages->baseUrl($lang) . $admin->base . $route;
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}
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/**
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* @param string $route
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* @param string|null $lang
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* @return string
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*/
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public function getAbsoluteAdminUrl(string $route, string $lang = null): string
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{
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/** @var Pages $pages */
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$pages = $this->grav['pages'];
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$admin = $this->getAdmin();
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return $pages->baseUrl($lang, true) . $admin->base . $route;
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}
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/**
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* Get session.
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*
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* @return SessionInterface
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*/
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public function getSession(): SessionInterface
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{
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return $this->grav['session'];
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}
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/**
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* @return Admin
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*/
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protected function getAdmin(): Admin
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{
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return $this->grav['admin'];
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}
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/**
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* @return UserInterface
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*/
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protected function getUser(): UserInterface
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{
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return $this->getAdmin()->user;
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}
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/**
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* @return ServerRequestInterface
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*/
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public function getRequest(): ServerRequestInterface
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{
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return $this->getAdmin()->request;
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}
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/**
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* @return array
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*/
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public function getPost(): array
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{
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return (array)($this->getRequest()->getParsedBody() ?? []);
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}
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/**
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* Translate a string.
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*
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* @param string $string
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* @param mixed ...$args
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* @return string
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*/
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public function translate(string $string, ...$args): string
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{
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/** @var Language $language */
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$language = $this->grav['language'];
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array_unshift($args, $string);
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return $language->translate($args);
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}
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/**
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* Set message to be shown in the admin.
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*
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* @param string $message
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* @param string $type
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* @return $this
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*/
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public function setMessage(string $message, string $type = 'info'): AdminController
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{
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/** @var Message $messages */
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$messages = $this->grav['messages'];
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$messages->add($message, $type);
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return $this;
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}
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/**
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* @return Config
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*/
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protected function getConfig(): Config
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{
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return $this->grav['config'];
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}
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/**
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* Check if request nonce is valid.
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*
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* @return void
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* @throws PageExpiredException If nonce is not valid.
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*/
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protected function checkNonce(): void
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{
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$nonce = null;
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$nonce_name = $this->form ? $this->form->getNonceName() : $this->nonce_name;
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$nonce_action = $this->form ? $this->form->getNonceAction() : $this->nonce_action;
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if (\in_array(strtoupper($this->getRequest()->getMethod()), ['POST', 'PUT', 'PATCH', 'DELETE'])) {
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$post = $this->getPost();
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$nonce = $post[$nonce_name] ?? null;
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}
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/** @var Uri $uri */
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$uri = $this->grav['uri'];
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if (!$nonce) {
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$nonce = $uri->param($nonce_name);
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}
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if (!$nonce) {
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$nonce = $uri->query($nonce_name);
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}
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if (!$nonce || !Utils::verifyNonce($nonce, $nonce_action)) {
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throw new PageExpiredException($this->getRequest());
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}
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}
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/**
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* Return the best matching mime type for the request.
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*
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* @param string[] $compare
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* @return string|null
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*/
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protected function getAccept(array $compare): ?string
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{
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$accepted = [];
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foreach ($this->getRequest()->getHeader('Accept') as $accept) {
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foreach (explode(',', $accept) as $item) {
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if (!$item) {
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continue;
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}
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$split = explode(';q=', $item);
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$mime = array_shift($split);
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$priority = array_shift($split) ?? 1.0;
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$accepted[$mime] = $priority;
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}
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}
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arsort($accepted);
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// TODO: add support for image/* etc
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$list = array_intersect($compare, array_keys($accepted));
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if (!$list && (isset($accepted['*/*']) || isset($accepted['*']))) {
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return reset($compare) ?: null;
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}
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return reset($list) ?: null;
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}
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/**
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* @param string $template
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* @return PageInterface
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*/
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protected function createPage(string $template): PageInterface
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{
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$page = new Page();
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// Plugins may not have the correct Cache-Control header set, force no-store for the proxies.
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$page->expires(0);
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$filename = "plugin://admin/pages/admin/{$template}.md";
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if (!file_exists($filename)) {
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throw new \RuntimeException(sprintf('Creating admin page %s failed: not found', $template));
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}
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Admin::DEBUG && Admin::addDebugMessage("Admin page: {$template}");
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$page->init(new \SplFileInfo($filename));
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$page->slug($template);
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return $page;
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}
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/**
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* @param string|null $url
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* @param int|null $code
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* @return ResponseInterface
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*/
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protected function createRedirectResponse(string $url = null, int $code = null): ResponseInterface
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{
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$request = $this->getRequest();
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if (null === $url || '' === $url) {
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$url = (string)$request->getUri();
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} elseif (mb_strpos($url, '/') === 0) {
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$url = $this->getAbsoluteAdminUrl($url);
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}
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if (null === $code) {
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if (in_array($request->getMethod(), ['GET', 'HEAD'])) {
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$code = 302;
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} else {
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$code = 303;
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}
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}
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return $this->traitCreateRedirectResponse($url, $code);
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}
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/**
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* @param \Throwable $e
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* @return array
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*/
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protected function getErrorJson(\Throwable $e): array
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{
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$json = $this->traitGetErrorJson($e);
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$code = $e->getCode();
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if ($code === 401) {
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$json['redirect'] = $this->getAbsoluteAdminUrl('/');
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}
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return $json;
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}
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}
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