fix: extract duplicate config loading (#4242)

Also fix a problem with bin/cache-prune and FileCache and its enable_purge option

actions/DisplayAction.php

@@ -89,7 +89,9 @@ class DisplayAction implements ActionInterface
             $this->cache->set($cacheKey, $response, 60 * 15);
         }
 
-        if (rand(1, 100) === 2) {
+        // For 1% of requests, prune cache
+        if (rand(1, 100) === 1) {
+            // This might be resource intensive!
             $this->cache->prune();
         }
 

bin/cache-clear

@@ -6,16 +6,7 @@
  */
 
 require __DIR__ . '/../lib/bootstrap.php';
-
+require __DIR__ . '/../lib/config.php';
-$config = [];
-if (file_exists(__DIR__ . '/../config.ini.php')) {
-    $config = parse_ini_file(__DIR__ . '/../config.ini.php', true, INI_SCANNER_TYPED);
-    if (!$config) {
-        http_response_code(500);
-        exit("Error parsing config.ini.php\n");
-    }
-}
-Configuration::loadConfiguration($config, getenv());
 
 $container = require __DIR__ . '/../lib/dependencies.php';
 

bin/cache-prune

@@ -6,19 +6,19 @@
  */
 
 require __DIR__ . '/../lib/bootstrap.php';
-
+require __DIR__ . '/../lib/config.php';
-$config = [];
-if (file_exists(__DIR__ . '/../config.ini.php')) {
-    $config = parse_ini_file(__DIR__ . '/../config.ini.php', true, INI_SCANNER_TYPED);
-    if (!$config) {
-        http_response_code(500);
-        exit("Error parsing config.ini.php\n");
-    }
-}
-Configuration::loadConfiguration($config, getenv());
 
 $container = require __DIR__ . '/../lib/dependencies.php';
 
+/** @var CacheInterface $cache */
 $cache = $container['cache'];
 
+if (
+    Configuration::getConfig('cache', 'type') === 'file'
+    && !Configuration::getConfig('FileCache', 'enable_purge')
+) {
+    // Override enable_purge for this execution
+    Configuration::setConfig('FileCache', 'enable_purge', true);
+}
+
 $cache->prune();

bin/test

@@ -6,16 +6,7 @@
  */
 
 require __DIR__ . '/../lib/bootstrap.php';
-
+require __DIR__ . '/../lib/config.php';
-$config = [];
-if (file_exists(__DIR__ . '/../config.ini.php')) {
-    $config = parse_ini_file(__DIR__ . '/../config.ini.php', true, INI_SCANNER_TYPED);
-    if (!$config) {
-        http_response_code(500);
-        exit("Error parsing config.ini.php\n");
-    }
-}
-Configuration::loadConfiguration($config, getenv());
 
 $container = require __DIR__ . '/../lib/dependencies.php';
 

caches/FileCache.php

@@ -97,8 +97,10 @@ class FileCache implements CacheInterface
             }
             $expiration = $item['expiration'] ?? time();
             if ($expiration === 0 || $expiration > time()) {
+                // Cached forever, or not expired yet
                 continue;
             }
+            // Expired, so delete file
             unlink($cacheFile);
         }
     }

index.php

@@ -5,17 +5,8 @@ if (version_compare(\PHP_VERSION, '7.4.0') === -1) {
     exit("RSS-Bridge requires minimum PHP version 7.4\n");
 }
 
-require_once __DIR__ . '/lib/bootstrap.php';
+require __DIR__ . '/lib/bootstrap.php';
-
+require __DIR__ . '/lib/config.php';
-$config = [];
-if (file_exists(__DIR__ . '/config.ini.php')) {
-    $config = parse_ini_file(__DIR__ . '/config.ini.php', true, INI_SCANNER_TYPED);
-    if (!$config) {
-        http_response_code(500);
-        exit("Error parsing config.ini.php\n");
-    }
-}
-Configuration::loadConfiguration($config, getenv());
 
 $container = require __DIR__ . '/lib/dependencies.php';
 

lib/Configuration.php

@@ -15,43 +15,6 @@ final class Configuration
     {
     }
 
-    public static function checkInstallation(): array
-    {
-        $errors = [];
-
-        // OpenSSL: https://www.php.net/manual/en/book.openssl.php
-        if (!extension_loaded('openssl')) {
-            $errors[] = 'openssl extension not loaded';
-        }
-
-        // libxml: https://www.php.net/manual/en/book.libxml.php
-        if (!extension_loaded('libxml')) {
-            $errors[] = 'libxml extension not loaded';
-        }
-
-        // Multibyte String (mbstring): https://www.php.net/manual/en/book.mbstring.php
-        if (!extension_loaded('mbstring')) {
-            $errors[] = 'mbstring extension not loaded';
-        }
-
-        // SimpleXML: https://www.php.net/manual/en/book.simplexml.php
-        if (!extension_loaded('simplexml')) {
-            $errors[] = 'simplexml extension not loaded';
-        }
-
-        // Client URL Library (curl): https://www.php.net/manual/en/book.curl.php
-        // Allow RSS-Bridge to run without curl module in CLI mode without root certificates
-        if (!extension_loaded('curl') && !(php_sapi_name() === 'cli' && empty(ini_get('curl.cainfo')))) {
-            $errors[] = 'curl extension not loaded';
-        }
-
-        // JavaScript Object Notation (json): https://www.php.net/manual/en/book.json.php
-        if (!extension_loaded('json')) {
-            $errors[] = 'json extension not loaded';
-        }
-        return $errors;
-    }
-
     public static function loadConfiguration(array $customConfig = [], array $env = [])
     {
         if (!file_exists(__DIR__ . '/../config.default.ini.php')) {
@@ -204,7 +167,10 @@ final class Configuration
         return self::$config[strtolower($section)][strtolower($key)] ?? $default;
     }
 
-    private static function setConfig(string $section, string $key, $value): void
+    /**
+     * @internal Please avoid usage
+     */
+    public static function setConfig(string $section, string $key, $value): void
     {
         self::$config[strtolower($section)][strtolower($key)] = $value;
     }

lib/config.php

@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+$config = [];
+if (file_exists(__DIR__ . '/../config.ini.php')) {
+    $config = parse_ini_file(__DIR__ . '/../config.ini.php', true, INI_SCANNER_TYPED);
+    if (!$config) {
+        http_response_code(500);
+        exit("Error parsing config.ini.php\n");
+    }
+}
+Configuration::loadConfiguration($config, getenv());