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<?php
declare(strict_types=1);
namespace Shaarli\Front\Controller;
use Shaarli\Bookmark\BookmarkFilter;
use Shaarli\Container\ShaarliContainer;
use Slim\Http\Response;
abstract class ShaarliController
{
/** @var ShaarliContainer */
protected $container;
/** @param ShaarliContainer $container Slim container (extended for attribute completion). */
public function __construct(ShaarliContainer $container)
{
$this->container = $container;
}
/**
* Assign variables to RainTPL template through the PageBuilder.
*
* @param mixed $value Value to assign to the template
*/
protected function assignView(string $name, $value): self
{
$this->container->pageBuilder->assign($name, $value);
return $this;
}
/**
* Assign variables to RainTPL template through the PageBuilder.
*
* @param mixed $data Values to assign to the template and their keys
*/
protected function assignAllView(array $data): self
{
foreach ($data as $key => $value) {
$this->assignView($key, $value);
}
return $this;
}
protected function render(string $template): string
{
$this->assignView('linkcount', $this->container->bookmarkService->count(BookmarkFilter::$ALL));
$this->assignView('privateLinkcount', $this->container->bookmarkService->count(BookmarkFilter::$PRIVATE));
$this->assignView('plugin_errors', $this->container->pluginManager->getErrors());
$this->executeDefaultHooks($template);
return $this->container->pageBuilder->render($template);
}
/**
* Call plugin hooks for header, footer and includes, specifying which page will be rendered.
* Then assign generated data to RainTPL.
*/
protected function executeDefaultHooks(string $template): void
{
$common_hooks = [
'includes',
'header',
'footer',
];
foreach ($common_hooks as $name) {
$plugin_data = [];
$this->container->pluginManager->executeHooks(
'render_' . $name,
$plugin_data,
[
'target' => $template,
'loggedin' => $this->container->loginManager->isLoggedIn()
]
);
$this->assignView('plugins_' . $name, $plugin_data);
}
}
/**
* Generates a redirection to the previous page, based on the HTTP_REFERER.
* It fails back to the home page.
*
* @param array $loopTerms Terms to remove from path and query string to prevent direction loop.
* @param array $clearParams List of parameter to remove from the query string of the referrer.
*/
protected function redirectFromReferer(Response $response, array $loopTerms = [], array $clearParams = []): Response
{
$defaultPath = './';
$referer = $this->container->environment['HTTP_REFERER'] ?? null;
if (null !== $referer) {
$currentUrl = parse_url($referer);
parse_str($currentUrl['query'] ?? '', $params);
$path = $currentUrl['path'] ?? $defaultPath;
} else {
$params = [];
$path = $defaultPath;
}
// Prevent redirection loop
if (isset($currentUrl)) {
foreach ($clearParams as $value) {
unset($params[$value]);
}
$checkQuery = implode('', array_keys($params));
foreach ($loopTerms as $value) {
if (strpos($path . $checkQuery, $value) !== false) {
$params = [];
$path = $defaultPath;
break;
}
}
}
$queryString = count($params) > 0 ? '?'. http_build_query($params) : '';
return $response->withRedirect($path . $queryString);
}
}
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