mirror of
https://github.com/Relintai/pandemonium_engine.git
synced 2024-12-20 19:06:53 +01:00
265 lines
7.4 KiB
C++
265 lines
7.4 KiB
C++
/*************************************************************************/
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/* file_cache.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* PANDEMONIUM ENGINE */
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/* https://github.com/Relintai/pandemonium_engine */
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/*************************************************************************/
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/* Copyright (c) 2022-present Péter Magyar. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "file_cache.h"
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#include "core/config/project_settings.h"
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#include "core/os/dir_access.h"
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#include "core/os/file_access.h"
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#include "core/os/os.h"
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#include "core/string/print_string.h"
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String FileCache::get_wwwroot() {
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return _wwwroot_orig;
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}
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void FileCache::set_wwwroot(const String &val) {
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_wwwroot_orig = val;
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_wwwroot = _wwwroot_orig.path_clean_end_slash();
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if (!_wwwroot.empty()) {
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_wwwroot_abs = DirAccess::get_filesystem_abspath_for(_wwwroot_orig).path_clean_end_slash();
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} else {
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_wwwroot_abs = "";
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}
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}
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String FileCache::get_wwwroot_abs() {
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return _wwwroot_abs;
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}
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int FileCache::get_cache_invalidation_time() {
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return static_cast<int>(cache_invalidation_time);
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}
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void FileCache::set_cache_invalidation_time(const int &val) {
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cache_invalidation_time = static_cast<uint64_t>(val);
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}
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bool FileCache::wwwroot_has_file(const String &file_path) {
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if (file_path.empty() || file_path == "/") {
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return false;
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}
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String fp = _wwwroot_abs + file_path;
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if (!FileAccess::exists(fp)) {
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return false;
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}
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Error err;
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FileAccess *f = FileAccess::open(fp, FileAccess::READ, &err);
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if (!f) {
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return false;
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}
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if (err != OK) {
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memdelete(f);
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return false;
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}
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String absp = f->get_path_absolute();
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memdelete(f);
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//likely a directory walking attempt. e.g. ../../../../../etc/passwd
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if (!absp.begins_with(_wwwroot_abs)) {
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return false;
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}
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return true;
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}
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String FileCache::wwwroot_get_file_abspath(const String &file_path) {
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if (file_path.empty() || file_path == "/") {
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return String();
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}
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String fp = _wwwroot_abs + file_path;
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if (!FileAccess::exists(fp)) {
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return String();
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}
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Error err;
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FileAccess *f = FileAccess::open(fp, FileAccess::READ, &err);
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if (!f) {
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return String();
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}
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if (err != OK) {
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memdelete(f);
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return String();
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}
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String absp = f->get_path_absolute();
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memdelete(f);
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//likely a directory walking attempt. e.g. ../../../../../etc/passwd
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if (!absp.begins_with(_wwwroot_abs)) {
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return String();
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}
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return absp;
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}
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bool FileCache::get_cached_body(const String &path, String *body) {
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//TODO ERROR MACRO body == null
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_body_lock.read_lock();
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CacheEntry *e = cache_map[path];
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_body_lock.read_unlock();
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if (!e) {
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return false;
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}
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if (cache_invalidation_time > 0) {
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uint64_t current_timestamp = OS::get_singleton()->get_unix_time();
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uint64_t diff = current_timestamp - e->timestamp;
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if (diff > cache_invalidation_time) {
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return false;
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}
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}
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body->operator+=(e->body);
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return true;
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}
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bool FileCache::has_cached_body(const String &path) {
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//TODO ERROR MACRO body == null
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_body_lock.read_lock();
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CacheEntry *e = cache_map[path];
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_body_lock.read_unlock();
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if (!e) {
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return false;
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}
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if (cache_invalidation_time > 0) {
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uint64_t current_timestamp = OS::get_singleton()->get_unix_time();
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uint64_t diff = current_timestamp - e->timestamp;
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if (diff > cache_invalidation_time) {
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return false;
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}
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}
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return true;
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}
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String FileCache::get_cached_body_bind(const String &path) {
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//TODO ERROR MACRO body == null
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_body_lock.read_lock();
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CacheEntry *e = cache_map[path];
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_body_lock.read_unlock();
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if (!e) {
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return "";
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}
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if (cache_invalidation_time > 0) {
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uint64_t current_timestamp = OS::get_singleton()->get_unix_time();
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uint64_t diff = current_timestamp - e->timestamp;
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if (diff > cache_invalidation_time) {
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return "";
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}
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}
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return e->body;
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}
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void FileCache::set_cached_body(const String &path, const String &body) {
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_body_lock.write_lock();
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CacheEntry *e = cache_map[path];
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if (!e) {
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e = memnew(CacheEntry());
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cache_map[path] = e;
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}
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uint64_t current_timestamp = OS::get_singleton()->get_unix_time();
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e->timestamp = current_timestamp;
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e->body = body;
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_body_lock.write_unlock();
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}
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void FileCache::clear() {
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_body_lock.write_lock();
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for (RBMap<String, CacheEntry *>::Element *E = cache_map.front(); E; E++) {
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CacheEntry *ce = E->get();
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if (ce) {
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memdelete(ce);
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}
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}
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cache_map.clear();
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_body_lock.write_unlock();
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}
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FileCache::FileCache() {
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cache_invalidation_time = 0;
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}
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FileCache::~FileCache() {
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}
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void FileCache::_bind_methods() {
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ClassDB::bind_method(D_METHOD("get_wwwroot"), &FileCache::get_wwwroot);
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ClassDB::bind_method(D_METHOD("set_wwwroot", "val"), &FileCache::set_wwwroot);
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ADD_PROPERTY(PropertyInfo(Variant::STRING, "wwwroot"), "set_wwwroot", "get_wwwroot");
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ClassDB::bind_method(D_METHOD("get_wwwroot_abs"), &FileCache::get_wwwroot_abs);
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ClassDB::bind_method(D_METHOD("get_cache_invalidation_time"), &FileCache::get_cache_invalidation_time);
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ClassDB::bind_method(D_METHOD("set_cache_invalidation_time", "val"), &FileCache::set_cache_invalidation_time);
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ADD_PROPERTY(PropertyInfo(Variant::INT, "cache_invalidation_time"), "set_cache_invalidation_time", "get_cache_invalidation_time");
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ClassDB::bind_method(D_METHOD("wwwroot_has_file", "file_path"), &FileCache::wwwroot_has_file);
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ClassDB::bind_method(D_METHOD("wwwroot_get_file_abspath", "file_path"), &FileCache::wwwroot_get_file_abspath);
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ClassDB::bind_method(D_METHOD("get_cached_body", "path"), &FileCache::get_cached_body_bind);
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ClassDB::bind_method(D_METHOD("has_cached_body", "path"), &FileCache::has_cached_body);
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ClassDB::bind_method(D_METHOD("set_cached_body", "path", "body"), &FileCache::set_cached_body);
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ClassDB::bind_method(D_METHOD("clear"), &FileCache::clear);
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}
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