webseite-grav/plugins/admin/classes/plugin/Controllers/AdminController.php

360 lines
9.0 KiB
PHP

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