mirror of
https://github.com/Dingo-Shenanigans/ReSkate.git
synced 2026-10-23 22:16:00 +02:00
AyeZeeBB
6d542536e1
A mod with a reskate-plugin.json is a plugin: Luau scripts that run in their own VM, with only
the reskate API ReSkate registers for them. Luau 0.741 is vendored in External/luau (the VM and
compiler only: no native code generation, no loadstring, io or C modules).
- Limits: 64 MB of memory, 50 ms a call, 2 ms a tick on average (over it for 3 s stops it),
more than 5 errors in 10 s stops it, 50 log lines a second. A plugin over a limit cannot catch
it in a pcall and carry on.
- API: reskate.log, on (load, unload, tick, level_loaded, level_unloading), timers, the level,
its own package's files and JSON, require inside the package; console.command and print
("console"); storage get, set, add and keys ("storage"), 1 MB in
%LOCALAPPDATA%\ReSkate\Plugins\<mod>\storage.json.
- Found every 2 s among the mods mods.json leaves on: switching a mod, or changing a plugin's
files, loads, unloads or reloads it without a restart. A package holding a program is refused.
- plugin list, commands, reload, off and on in the console. A plugin cannot take a name of
ReSkate's own commands.
- Tests: DINGOSDK_BUILD_PLUGIN_TESTS, including plugins written to break the sandbox.
66 lines
2.9 KiB
C++
66 lines
2.9 KiB
C++
#include "plugin_discovery.h"
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#include "plugin_manifest.h"
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#include "Engine/Vfs/mod_list.h"
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#include <algorithm>
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#include <array>
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#include <fstream>
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namespace dingosdk::plugins {
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namespace {
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constexpr std::array<std::string_view, 22> runnable{".exe", ".dll", ".sys", ".scr", ".com", ".cpl", ".msi", ".msp",
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".bat", ".cmd", ".ps1", ".psm1", ".vbs", ".vbe", ".js", ".jse", ".wsf", ".wsh", ".hta", ".lnk", ".pif", ".reg"};
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constexpr std::size_t most_files = 20000;
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// path::string() throws on names outside the ANSI code page; a name here is only shown or compared.
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std::string ascii_lowercase(const std::filesystem::path& path) {
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std::string text;
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for (const auto c : path.generic_wstring())
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text += c < 0x80 ? static_cast<char>(c >= L'A' && c <= L'Z' ? c + 32 : c) : '?';
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return text;
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}
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}
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std::string check_package_files(const std::filesystem::path& directory) {
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std::error_code code;
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std::size_t files = 0;
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for (std::filesystem::recursive_directory_iterator it(directory, std::filesystem::directory_options::skip_permission_denied, code), end;
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!code && it != end; it.increment(code)) {
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std::error_code entry_code;
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if (!it->is_regular_file(entry_code)) continue;
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if (++files > most_files) return "it holds more than 20000 files";
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const auto shown = ascii_lowercase(std::filesystem::relative(it->path(), directory, entry_code));
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const auto extension = ascii_lowercase(it->path().extension());
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bool program = std::find(runnable.begin(), runnable.end(), extension) != runnable.end();
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if (!program) {
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std::ifstream in(it->path(), std::ios::binary);
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char magic[2]{};
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program = in.read(magic, 2) && magic[0] == 'M' && magic[1] == 'Z';
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}
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if (program) return "it holds " + shown + ", a program or a script Windows runs. A plugin never ships one";
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}
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return {};
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}
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std::vector<Candidate> discover(const std::filesystem::path& data_root, FileChecks& checks) {
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std::vector<Candidate> result;
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const auto list = mods::scan_mods(data_root);
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// A mods.json the game cannot read loads no mod at all, plugins included.
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if (!list.present || !list.issue.empty()) return result;
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FileChecks seen;
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for (const auto& entry : list.entries) {
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if (!entry.enabled) continue;
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const auto& directory = entry.mod.directory;
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std::error_code code;
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if (!std::filesystem::is_regular_file(directory / manifest_file, code)) continue;
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Candidate candidate{entry.mod.name, directory, mods::mod_fingerprint(directory), {}};
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const auto key = candidate.id + "|" + candidate.fingerprint;
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const auto known = checks.find(key);
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candidate.refusal = known != checks.end() ? known->second : check_package_files(directory);
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seen.emplace(key, candidate.refusal);
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result.push_back(std::move(candidate));
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}
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checks = std::move(seen);
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return result;
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}
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}
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