thayol/osu-optimizer-php
Archived
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Cacher gardening

Browse Source
This commit is contained in:
Thayol
2021-01-06 19:05:38 +01:00
parent dd3085ca1d
commit 0fa7358c4b
4 changed files with 56 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files
libraries/osu_cacher.php
+29 -20
View File
@@ -1,22 +1,23 @@
<?php
require_once "libraries/utils.php";
class osu_cacher
{
public static $hash_function = "md5";
// public static $hash_function = "crc32";
public static $hash_function = "md5"; // crc32 was another option, but md5 produced better filesizes
private $root;
private $original_root;
private $cache_root;
public function __construct(string $root, string $cache_root)
public function __construct(string $original_root, string $cache_root)
{
$this->root = $root;
$this->original_root = $original_root;
$this->cache_root = $cache_root;
if (!file_exists($cache_root)) mkdir($cache_root, 0777, true);
utils::make_directory($cache_root);
}
public function get_root() : string
public function get_original_root() : string
{
return $this->root;
return $this->original_root;
}
public function get_cache_root() : string
@@ -26,7 +27,7 @@ class osu_cacher
public function get_cached_path(string $path) : string
{
return str_replace($this->root, $this->cache_root, $path) . ".json";
return str_replace($this->get_original_root(), $this->cache_root, $path) . ".json";
}
public function is_cached(string $path) : bool
@@ -34,29 +35,37 @@ class osu_cacher
return file_exists($this->get_cached_path($path));
}
public function get_cache(string $path, $hash=false)// : array|bool // see you again in php8
public static function is_hash_invalid(array $json, string $hash) : bool
{
if (empty($hash)) return false; // empty means hash check has to be skipped
if (empty($json["hash"])) return true; // json without a hash is invalid
return $json["hash"] == $hash;
}
public function get_cache(string $path, string $hash="")// : array|bool // see you again in php8
{
if (!$this->is_cached($path)) return false;
$raw = file_get_contents($this->get_cached_path($path));
$json = json_decode($raw, true);
$json = utils::load_json($this->get_cached_path($path));
if (empty($json)) return false; // cache had empty save
if ($hash !== false && $hash != ($json["hash"] ?? false)) return false; // hash check failed
if (self::is_hash_invalid($json, $hash)) return false;
return $json;
}
public static function set_hash_if_not_present(array &$json, string $path) : void
{
if (!isset($json["hash"])) $json["hash"] = hash_file(self::$hash_function, $path);
}
public function set_cache(string $path, array $content) : void
{
$cache_path = $this->get_cached_path($path);
$cache_dir = dirname($cache_path);
if (!file_exists($cache_dir)) mkdir($cache_dir, 0777, true);
self::set_hash_if_not_present($content, $path);
if (!isset($content["hash"])) $content["hash"] = hash_file(self::$hash_function, $path);
$encoded = json_encode($content);
file_put_contents($cache_path, $encoded);
utils::make_directory(dirname($cache_path));
file_put_contents($cache_path, json_encode($content));
}
}