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<?php
namespace App\Controllers;
use App\Classes\Config;
use App\Classes\Http\Http;
use App\Classes\Session;
use App\Model\ConfigModel;
class CacheController extends PageController {
/**
* Maximum amount of files that can be purged on a single request
*/
public static int $purgeLimit = 30;
public function cacheAction(): void
{
$config = $this->getConfigValues();
$this->router->service()->config = $config;
$this->router->service()->csrfToken = Session::token();
$this->router->service()->purgeUrl = $this->url . '/purge';
$this->router->service()->toggleUrl = $this->url . '/toggle';
parent::view();
}
public function purgeAction(): void
{
if (!$this->validatePostRequest()) {
return;
}
$token = Config::c('CLOUDFLARE_TOKEN');
$zone = Config::c('CLOUDFLARE_ZONE');
$url = "https://api.cloudflare.com/client/v4/zones/$zone/purge_cache";
if (!_exists($_POST, 'type')) {
return;
}
$bodies = [];
switch($_POST['type']) {
case 'css-js':
$body = self::generateUrls(['css', 'js']);
$chunks = array_chunk($body['files'], self::$purgeLimit);
foreach($chunks as $chunk) {
$bodies[]['files'] = $chunk;
}
break;
case 'fonts-images':
$body = self::generateUrls(['fonts', 'img', 'media']);
$chunks = array_chunk($body['files'], self::$purgeLimit);
foreach($chunks as $chunk) {
$bodies[]['files'] = $chunk;
}
break;
case 'all':
$bodies[] = ['purge_everything' => true];
break;
default:
return;
}
$response = null;
foreach($bodies as $body) {
$response = (new Http)->withToken($token)
->asJson()
->acceptJson()
->post($url, $body);
if (empty($response->body())
|| !json_decode($response->body(), true)['success']) {
break;
}
}
if ($response) {
echo $response->body();
}
}
public function toggleAction(): void
{
if (!$this->validatePostRequest()) {
return;
}
$token = Config::c('CLOUDFLARE_TOKEN');
$zone = Config::c('CLOUDFLARE_ZONE');
$url = "https://api.cloudflare.com/client/v4/zones/$zone/settings/development_mode";
$config = $this->getConfigValues();
$currentState = $config['CLOUDFLARE_DEVELOPMENT_MODE_ENABLED'];
$response = (new Http)->withToken($token)
->asJson()
->acceptJson()
->patch($url, [
'value' => $currentState == '1' ? 'off' : 'on',
]);
$this->saveConfigValues($response->body());
echo $response->body();
}
//-------------------------------------//
private function validatePostRequest(): bool
{
if ($_SERVER['REQUEST_METHOD'] == 'GET') {
parent::throw404();
}
if (Config::c('CLOUDFLARE_ENABLED') != '1') {
return false;
}
if (!Session::validateToken($_POST)) {
return false;
}
return true;
}
private static function generateUrls(array $directories): array
{
$result = [];
foreach ($directories as $directory) {
$files = array_diff(scandir($directory), ['..', '.']);
foreach ($files as $file) {
$result['files'][] = Config::c('APP_URL') . "/$directory/$file";
}
}
return $result;
}
private static function getConfigValues(): array
{
$result = [];
$config = [
'CLOUDFLARE_DEVELOPMENT_MODE_ENABLED' => '0',
'CLOUDFLARE_DEVELOPMENT_MODE_UPDATED_AT' => '',
'CLOUDFLARE_DEVELOPMENT_MODE_EXPIRES_IN' => '',
];
foreach ($config as $key => $value) {
$result[$key] = ConfigModel::firstOrCreate(
['key' => $key],
['value' => $value]
)->value;
}
if ($result['CLOUDFLARE_DEVELOPMENT_MODE_ENABLED']) {
$expiresIn = $result['CLOUDFLARE_DEVELOPMENT_MODE_EXPIRES_IN'];
$updatedAt = $result['CLOUDFLARE_DEVELOPMENT_MODE_UPDATED_AT'];
$expiresAtObject = new \DateTime($updatedAt);
$expiresAt = $expiresAtObject
->modify("+ $expiresIn seconds")
->format('Y-m-d H:i:s');
$nowObject = new \DateTime('now');
$now = $nowObject->format('Y-m-d H:i:s');
if ($now >= $expiresAt) {
ConfigModel::updateOrCreate(
['key' => 'CLOUDFLARE_DEVELOPMENT_MODE_ENABLED'],
['value' => 0]);
$result['CLOUDFLARE_DEVELOPMENT_MODE_ENABLED'] = 0;
}
else {
$result['enabled-remaining'] = $expiresAtObject->modify(
'- ' . $nowObject->getTimestamp() . ' seconds'
)->format('H:i:s');
}
}
return $result;
}
private static function saveConfigValues(string $response): void
{
$decodedResponse = json_decode($response, true);
if ($decodedResponse['success'] == true) {
$state = $decodedResponse['result']['value'];
$expiresIn = $decodedResponse['result']['time_remaining'];
$updatedAt = $decodedResponse['result']['modified_on'];
$updatedAtFormatted = (new \DateTime($updatedAt))->format('Y-m-d H:i:s');
ConfigModel::updateOrCreate(
['key' => 'CLOUDFLARE_DEVELOPMENT_MODE_ENABLED'],
['value' => $state == 'on' ? 1 : 0]);
ConfigModel::updateOrCreate(
['key' => 'CLOUDFLARE_DEVELOPMENT_MODE_EXPIRES_IN'],
['value' => $expiresIn]);
ConfigModel::updateOrCreate(
['key' => 'CLOUDFLARE_DEVELOPMENT_MODE_UPDATED_AT'],
['value' => $updatedAtFormatted]);
}
}
}