mirror of
https://github.com/Dingo-Shenanigans/ReSkate.git
synced 2026-10-23 18:45:57 +02:00
Robin MoellerandClaude Opus 5.5
fd5f95467f
On a dedicated server reskate.level.current() was empty and level_loaded and level_unloading never fired, so a server plugin could not tell which map ran or that it had changed. The server's plugins are now told the map's level each tick, named as players' games name it (a destination's level, after its "|"). When the server changes the map, they hear level_unloading for the old one and level_loaded for the new one, as a game's plugins do; players load it after. dingosdk_server_plugin_tests checks level.current() and both events across a map change. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Hs7xxJDf6SDcQUaXnzmtL5
270 lines
13 KiB
C++
270 lines
13 KiB
C++
#include "server_plugins.h"
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#include "server_host.h"
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#include "Extension/Plugins/plugin_host.h"
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#include "Extension/Plugins/plugin_manifest.h"
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#include "Extension/Plugins/plugin_wire.h"
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#include <algorithm>
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#include <chrono>
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#include <cmath>
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#include <format>
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#include <map>
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namespace dingosdk::server {
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namespace {
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using namespace dingosdk::plugins;
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constexpr std::size_t most_files = 20000;
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std::string text_of(const std::filesystem::path &path) {
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const auto utf8 = path.u8string();
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return std::string(utf8.begin(), utf8.end());
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}
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// Changes when any file of the package does: its paths, sizes and times.
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std::string fingerprint_of(const std::filesystem::path &directory) {
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std::uint64_t hash = 1469598103934665603ull;
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const auto add = [&](std::string_view text) {
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for (const char c : text) {
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hash ^= static_cast<unsigned char>(c);
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hash *= 1099511628211ull;
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}
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};
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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 && ++files <= most_files; it.increment(code)) {
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std::error_code entry;
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if (!it->is_regular_file(entry)) continue;
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const auto relative = std::filesystem::relative(it->path(), directory, entry).generic_u8string();
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add(std::string_view(reinterpret_cast<const char *>(relative.data()), relative.size()));
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add(std::to_string(it->file_size(entry)));
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add(std::to_string(it->last_write_time(entry).time_since_epoch().count()));
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}
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return std::format("{:016x}", hash);
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}
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// The server's game, for plugins: its players and what the server does to them.
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class ServerGame final : public Game {
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public:
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ServerGame(Host &host, ServerPlugins::Log log) : host_(host), log_(std::move(log)) {}
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std::string kick(std::uint64_t player, std::string_view why) override {
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if (!present(player)) return "that player is not on the server";
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host_.drop(player, why.empty() ? std::string("Removed from the server.") : "Removed from the server: " + std::string(why),
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"a plugin removed them");
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return {};
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}
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std::string announce(std::string_view plugin, std::string_view text) override {
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host_.broadcast_player_chat("[" + std::string(plugin) + "] " + std::string(text));
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return {};
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}
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std::string tell(std::string_view plugin, std::uint64_t player, std::string_view text) override {
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if (!present(player)) return "that player is not on the server";
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host_.send_player_chat(player, "[" + std::string(plugin) + "] " + std::string(text));
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return {};
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}
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std::string move_player(std::uint64_t player, const Vec3 &at) override {
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return host_.teleport_player(player, at[0], at[1], at[2]) ? std::string{} : "that player is not on the server";
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}
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// Permissions are the player's locks turned around; any SteamID64, here or not, as `lock` takes.
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std::optional<Permissions> permissions(std::uint64_t player) override {
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if (!multiplayer::individual_steam_id(player)) return std::nullopt;
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const auto locks = host_.player_locks(player);
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return Permissions{!(locks & lock_noclip), !(locks & lock_nobail), !(locks & lock_boosts), !(locks & lock_tuning),
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!(locks & lock_objects), !(locks & lock_ollies)};
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}
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std::string apply_permissions(std::string_view plugin, std::uint64_t player, const Permissions &p) override {
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if (!multiplayer::individual_steam_id(player)) return "not a player's SteamID64";
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const auto locks = static_cast<std::uint8_t>((p.noclip ? 0 : lock_noclip) | (p.nobail ? 0 : lock_nobail) | (p.boosts ? 0 : lock_boosts) |
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(p.tuning ? 0 : lock_tuning) | (p.objects ? 0 : lock_objects) | (p.ollies ? 0 : lock_ollies));
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host_.set_locks(player, locks, "plugin " + std::string(plugin));
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return {};
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}
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// The skaters of the players in the world, as their latest poses put them. The server has
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// no skater of its own, so this is every player's.
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std::vector<PeerSkater> peer_skaters() override {
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std::vector<PeerSkater> result;
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for (const auto &s : host_.skater_poses()) {
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const auto &q = s.root.rotation;
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// The rotation's +Z about world up, as a client's plugin_game_runtime.cpp reads it.
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const float heading = std::atan2(2 * (q[0] * q[2] + q[3] * q[1]), 1 - 2 * (q[0] * q[0] + q[1] * q[1]));
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result.push_back({s.id, s.root.position, heading, static_cast<double>(s.age_us) / 1000.0});
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}
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return result;
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}
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// Through the console's own ban and unban, so they keep its checks and save the bans file.
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std::string ban(std::uint64_t player) override {
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const auto answer = host_.command("ban " + std::to_string(player));
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if (!host_.is_banned(player)) return answer;
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log_("[Plugins] " + answer); // the console's ban leaves logging to the console
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return {};
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}
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std::string unban(std::uint64_t player) override {
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const auto answer = host_.command("unban " + std::to_string(player));
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if (host_.is_banned(player)) return answer;
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log_("[Plugins] " + answer);
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return {};
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}
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private:
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bool present(std::uint64_t player) const {
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for (const auto &p : host_.player_list())
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if (p.id == player) return true;
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return false;
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}
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Host &host_;
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ServerPlugins::Log log_;
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};
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class ServerEnvironment final : public Environment {
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public:
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ServerEnvironment(Host &host, std::filesystem::path storage, ServerPlugins::Log log)
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: host_(host), storage_(std::move(storage)), log_(log), game_(host, log) {}
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void log(LogLevel level, std::string_view text) override {
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log_(std::string(level == LogLevel::error ? "[Plugins] error: " : level == LogLevel::warn ? "[Plugins] warning: " : "[Plugins] ") +
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std::string(text));
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}
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void console(std::string_view text) override { log_(std::string(text)); }
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double now_ms() override {
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return std::chrono::duration<double, std::milli>(std::chrono::steady_clock::now().time_since_epoch()).count();
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}
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std::filesystem::path storage_root() override { return storage_; }
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// A plugin's command runs only for a line the server does not know, so none can hide one.
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bool builtin_command(std::string_view word) override { return word == "plugin"; }
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// The players on the server; the server is none of them (it is the authority).
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SessionState session() override {
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SessionState state{true, true, {}};
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for (const auto &p : host_.player_list()) state.players.push_back({p.id, p.name, false, false});
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return state;
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}
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bool send_message(std::vector<std::uint8_t> bytes) override {
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if (outbox.size() >= 256) return false;
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outbox.push_back(std::move(bytes));
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return true;
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}
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std::vector<Received> take_messages() override { return std::exchange(inbox, {}); }
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Game &game() override { return game_; }
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std::vector<Received> inbox;
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std::vector<std::vector<std::uint8_t>> outbox;
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private:
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Host &host_;
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std::filesystem::path storage_;
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ServerPlugins::Log log_;
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ServerGame game_;
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};
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} // namespace
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struct ServerPlugins::State {
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State(Host &host, std::filesystem::path folder, std::filesystem::path storage, Log log)
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: folder(std::move(folder)), environment(host, std::move(storage), log), plugins(environment, Side::server), log(std::move(log)),
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server(host) {}
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std::filesystem::path folder;
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ServerEnvironment environment;
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plugins::Host plugins;
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Log log;
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Host &server;
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std::uint64_t next_scan{}, last_tick{};
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std::map<std::string, std::string, std::less<>> checked; // a fingerprint's file check
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std::vector<Candidate> found;
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bool announced{};
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void scan() {
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std::vector<Candidate> latest;
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std::error_code code;
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if (std::filesystem::is_directory(folder, code))
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for (std::filesystem::directory_iterator it(folder, 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;
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if (!it->is_directory(entry) || !std::filesystem::is_regular_file(it->path() / manifest_file, entry)) continue;
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Candidate candidate{text_of(it->path().filename()), it->path(), fingerprint_of(it->path()), {}};
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auto known = checked.find(candidate.fingerprint);
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if (known == checked.end()) known = checked.emplace(candidate.fingerprint, check_package_files(it->path())).first;
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candidate.refusal = known->second;
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latest.push_back(std::move(candidate));
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}
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std::sort(latest.begin(), latest.end(), [](const auto &a, const auto &b) { return a.id < b.id; });
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if (latest == found) return;
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found = std::move(latest);
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if (!announced && !found.empty()) {
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announced = true;
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log("[Plugins] " + std::to_string(found.size()) + " server plugin folder(s) in " + text_of(folder) + ".");
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}
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plugins.apply(found);
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}
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};
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ServerPlugins::ServerPlugins(Host &host, std::filesystem::path folder, std::filesystem::path storage, Log log)
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: state_(std::make_unique<State>(host, std::move(folder), std::move(storage), std::move(log))) {}
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ServerPlugins::~ServerPlugins() {
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try { state_->plugins.shutdown(); } catch (...) {}
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}
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void ServerPlugins::tick(std::uint64_t now_us) {
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auto &s = *state_;
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try {
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if (now_us >= s.next_scan) {
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s.next_scan = now_us + 2'000'000;
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s.scan();
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}
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const double dt = s.last_tick ? static_cast<double>(now_us - s.last_tick) / 1000.0 : 0;
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s.last_tick = now_us;
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// The map the server runs, so plugins hear level_unloading and level_loaded when it
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// changes, as a game's plugins do (when the server changes it; players load it after).
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s.plugins.set_level(s.server.map_level());
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s.plugins.tick(dt);
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for (auto &bytes : std::exchange(s.environment.outbox, {})) s.server.send_plugin_message(wire::to_of(bytes), bytes);
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} catch (const std::exception &error) {
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s.log(std::string("[Plugins] error: the plugin tick failed: ") + error.what());
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}
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}
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void ServerPlugins::receive(std::uint64_t from, const std::vector<std::uint8_t> &bytes) {
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auto &inbox = state_->environment.inbox;
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const auto to = wire::to_of(bytes);
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if ((to == 0 || to == wire::authority) && inbox.size() < 256) inbox.push_back({from, bytes});
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}
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std::optional<std::string> ServerPlugins::command(std::string_view line) {
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auto &s = *state_;
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std::string_view rest = line;
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const auto word = [&] {
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while (!rest.empty() && rest.front() == ' ') rest.remove_prefix(1);
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const auto end = rest.find(' ');
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const auto taken = rest.substr(0, end);
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rest = end == std::string_view::npos ? std::string_view{} : rest.substr(end);
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return taken;
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};
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if (word() != "plugin") {
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if (s.plugins.run_console(line)) return std::string("Ran by a plugin.");
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return std::nullopt;
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}
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const auto verb = word();
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const auto id = word();
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if (verb == "reload") return s.plugins.reload(id);
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if (verb == "off") return s.plugins.switch_off(id);
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if (verb == "on") return s.plugins.switch_on(id);
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if (verb == "commands") {
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std::string text;
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for (const auto &plugin : s.plugins.status())
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for (const auto &command : plugin.commands)
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text += (text.empty() ? "" : "\n") + std::format("{}{}{} - {} ({})", command.name, command.args.empty() ? "" : " ", command.args,
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command.help, plugin.id);
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return text.empty() ? std::string("No plugin has a console command.") : text;
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}
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if (!verb.empty() && verb != "list") return std::string("plugin list|commands|reload <id>|off <id>|on <id>");
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const auto all = s.plugins.status();
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if (all.empty())
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return "No server plugins. A plugin is a folder in " + text_of(s.folder) + " with a reskate-plugin.json (\"side\" \"server\" or \"both\").";
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std::string text;
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for (const auto &plugin : all) {
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if (!text.empty()) text += '\n';
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text += std::format("{}: {}", plugin.id, plugin.state);
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if (plugin.state == "running") text += std::format(", {:.1f} MB, {:.3f} ms a tick", plugin.memory / 1048576.0, plugin.tick_ms);
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else if (!plugin.reason.empty()) text += " (" + plugin.reason + ")";
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}
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return text;
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}
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} // namespace dingosdk::server
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