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sunshine-sdk/src/nvhttp.cpp
Cameron Gutman 69e720b44b Implement AV1 support
2023-08-19 18:36:48 -05:00

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/**
* @file src/nvhttp.h
* @brief todo
*/
// macros
#define BOOST_BIND_GLOBAL_PLACEHOLDERS
// standard includes
#include <filesystem>
// lib includes
#include <Simple-Web-Server/server_http.hpp>
#include <Simple-Web-Server/server_https.hpp>
#include <boost/asio/ssl/context.hpp>
#include <boost/asio/ssl/context_base.hpp>
#include <boost/property_tree/json_parser.hpp>
#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/xml_parser.hpp>
#include <string>
// local includes
#include "config.h"
#include "crypto.h"
#include "httpcommon.h"
#include "main.h"
#include "network.h"
#include "nvhttp.h"
#include "platform/common.h"
#include "process.h"
#include "rtsp.h"
#include "utility.h"
#include "uuid.h"
#include "video.h"
using namespace std::literals;
namespace nvhttp {
namespace fs = std::filesystem;
namespace pt = boost::property_tree;
class SunshineHttpsServer: public SimpleWeb::Server<SimpleWeb::HTTPS> {
public:
SunshineHttpsServer(const std::string &certification_file, const std::string &private_key_file):
SimpleWeb::Server<SimpleWeb::HTTPS>::Server(certification_file, private_key_file) {}
std::function<int(SSL *)> verify;
std::function<void(std::shared_ptr<Response>, std::shared_ptr<Request>)> on_verify_failed;
protected:
void
after_bind() override {
SimpleWeb::Server<SimpleWeb::HTTPS>::after_bind();
if (verify) {
context.set_verify_mode(boost::asio::ssl::verify_peer | boost::asio::ssl::verify_fail_if_no_peer_cert | boost::asio::ssl::verify_client_once);
context.set_verify_callback([](int verified, boost::asio::ssl::verify_context &ctx) {
// To respond with an error message, a connection must be established
return 1;
});
}
}
// This is Server<HTTPS>::accept() with SSL validation support added
void
accept() override {
auto connection = create_connection(*io_service, context);
acceptor->async_accept(connection->socket->lowest_layer(), [this, connection](const SimpleWeb::error_code &ec) {
auto lock = connection->handler_runner->continue_lock();
if (!lock)
return;
if (ec != SimpleWeb::error::operation_aborted)
this->accept();
auto session = std::make_shared<Session>(config.max_request_streambuf_size, connection);
if (!ec) {
boost::asio::ip::tcp::no_delay option(true);
SimpleWeb::error_code ec;
session->connection->socket->lowest_layer().set_option(option, ec);
session->connection->set_timeout(config.timeout_request);
session->connection->socket->async_handshake(boost::asio::ssl::stream_base::server, [this, session](const SimpleWeb::error_code &ec) {
session->connection->cancel_timeout();
auto lock = session->connection->handler_runner->continue_lock();
if (!lock)
return;
if (!ec) {
if (verify && !verify(session->connection->socket->native_handle()))
this->write(session, on_verify_failed);
else
this->read(session);
}
else if (this->on_error)
this->on_error(session->request, ec);
});
}
else if (this->on_error)
this->on_error(session->request, ec);
});
}
};
using https_server_t = SunshineHttpsServer;
using http_server_t = SimpleWeb::Server<SimpleWeb::HTTP>;
struct conf_intern_t {
std::string servercert;
std::string pkey;
} conf_intern;
struct client_t {
std::string uniqueID;
std::vector<std::string> certs;
};
struct pair_session_t {
struct {
std::string uniqueID;
std::string cert;
} client;
std::unique_ptr<crypto::aes_t> cipher_key;
std::vector<uint8_t> clienthash;
std::string serversecret;
std::string serverchallenge;
struct {
util::Either<
std::shared_ptr<typename SimpleWeb::ServerBase<SimpleWeb::HTTP>::Response>,
std::shared_ptr<typename SimpleWeb::ServerBase<SimpleWeb::HTTPS>::Response>>
response;
std::string salt;
} async_insert_pin;
};
// uniqueID, session
std::unordered_map<std::string, pair_session_t> map_id_sess;
std::unordered_map<std::string, client_t> map_id_client;
using args_t = SimpleWeb::CaseInsensitiveMultimap;
using resp_https_t = std::shared_ptr<typename SimpleWeb::ServerBase<SimpleWeb::HTTPS>::Response>;
using req_https_t = std::shared_ptr<typename SimpleWeb::ServerBase<SimpleWeb::HTTPS>::Request>;
using resp_http_t = std::shared_ptr<typename SimpleWeb::ServerBase<SimpleWeb::HTTP>::Response>;
using req_http_t = std::shared_ptr<typename SimpleWeb::ServerBase<SimpleWeb::HTTP>::Request>;
enum class op_e {
ADD,
REMOVE
};
std::string
get_arg(const args_t &args, const char *name, const char *default_value = nullptr) {
auto it = args.find(name);
if (it == std::end(args)) {
if (default_value != NULL) {
return std::string(default_value);
}
throw std::out_of_range(name);
}
return it->second;
}
void
save_state() {
pt::ptree root;
if (fs::exists(config::nvhttp.file_state)) {
try {
pt::read_json(config::nvhttp.file_state, root);
}
catch (std::exception &e) {
BOOST_LOG(error) << "Couldn't read "sv << config::nvhttp.file_state << ": "sv << e.what();
return;
}
}
root.erase("root"s);
root.put("root.uniqueid", http::unique_id);
auto &nodes = root.add_child("root.devices", pt::ptree {});
for (auto &[_, client] : map_id_client) {
pt::ptree node;
node.put("uniqueid"s, client.uniqueID);
pt::ptree cert_nodes;
for (auto &cert : client.certs) {
pt::ptree cert_node;
cert_node.put_value(cert);
cert_nodes.push_back(std::make_pair(""s, cert_node));
}
node.add_child("certs"s, cert_nodes);
nodes.push_back(std::make_pair(""s, node));
}
try {
pt::write_json(config::nvhttp.file_state, root);
}
catch (std::exception &e) {
BOOST_LOG(error) << "Couldn't write "sv << config::nvhttp.file_state << ": "sv << e.what();
return;
}
}
void
load_state() {
if (!fs::exists(config::nvhttp.file_state)) {
BOOST_LOG(info) << "File "sv << config::nvhttp.file_state << " doesn't exist"sv;
http::unique_id = uuid_util::uuid_t::generate().string();
return;
}
pt::ptree root;
try {
pt::read_json(config::nvhttp.file_state, root);
}
catch (std::exception &e) {
BOOST_LOG(error) << "Couldn't read "sv << config::nvhttp.file_state << ": "sv << e.what();
return;
}
auto unique_id_p = root.get_optional<std::string>("root.uniqueid");
if (!unique_id_p) {
// This file doesn't contain moonlight credentials
http::unique_id = uuid_util::uuid_t::generate().string();
return;
}
http::unique_id = std::move(*unique_id_p);
auto device_nodes = root.get_child("root.devices");
for (auto &[_, device_node] : device_nodes) {
auto uniqID = device_node.get<std::string>("uniqueid");
auto &client = map_id_client.emplace(uniqID, client_t {}).first->second;
client.uniqueID = uniqID;
for (auto &[_, el] : device_node.get_child("certs")) {
client.certs.emplace_back(el.get_value<std::string>());
}
}
}
void
update_id_client(const std::string &uniqueID, std::string &&cert, op_e op) {
switch (op) {
case op_e::ADD: {
auto &client = map_id_client[uniqueID];
client.certs.emplace_back(std::move(cert));
client.uniqueID = uniqueID;
} break;
case op_e::REMOVE:
map_id_client.erase(uniqueID);
break;
}
if (!config::sunshine.flags[config::flag::FRESH_STATE]) {
save_state();
}
}
rtsp_stream::launch_session_t
make_launch_session(bool host_audio, const args_t &args) {
rtsp_stream::launch_session_t launch_session;
launch_session.host_audio = host_audio;
launch_session.gcm_key = util::from_hex<crypto::aes_t>(get_arg(args, "rikey"), true);
std::stringstream mode = std::stringstream(get_arg(args, "mode", "0x0x0"));
// Split mode by the char "x", to populate width/height/fps
int x = 0;
std::string segment;
while (std::getline(mode, segment, 'x')) {
if (x == 0) launch_session.width = atoi(segment.c_str());
if (x == 1) launch_session.height = atoi(segment.c_str());
if (x == 2) launch_session.fps = atoi(segment.c_str());
x++;
}
launch_session.unique_id = (get_arg(args, "uniqueid", "unknown"));
launch_session.appid = util::from_view(get_arg(args, "appid", "unknown"));
launch_session.enable_sops = util::from_view(get_arg(args, "sops", "0"));
launch_session.surround_info = util::from_view(get_arg(args, "surroundAudioInfo", "196610"));
launch_session.gcmap = util::from_view(get_arg(args, "gcmap", "0"));
launch_session.enable_hdr = util::from_view(get_arg(args, "hdrMode", "0"));
uint32_t prepend_iv = util::endian::big<uint32_t>(util::from_view(get_arg(args, "rikeyid")));
auto prepend_iv_p = (uint8_t *) &prepend_iv;
auto next = std::copy(prepend_iv_p, prepend_iv_p + sizeof(prepend_iv), std::begin(launch_session.iv));
std::fill(next, std::end(launch_session.iv), 0);
return launch_session;
}
void
getservercert(pair_session_t &sess, pt::ptree &tree, const std::string &pin) {
if (sess.async_insert_pin.salt.size() < 32) {
tree.put("root.paired", 0);
tree.put("root.<xmlattr>.status_code", 400);
tree.put("root.<xmlattr>.status_message", "Salt too short");
return;
}
std::string_view salt_view { sess.async_insert_pin.salt.data(), 32 };
auto salt = util::from_hex<std::array<uint8_t, 16>>(salt_view, true);
auto key = crypto::gen_aes_key(salt, pin);
sess.cipher_key = std::make_unique<crypto::aes_t>(key);
tree.put("root.paired", 1);
tree.put("root.plaincert", util::hex_vec(conf_intern.servercert, true));
tree.put("root.<xmlattr>.status_code", 200);
}
void
serverchallengeresp(pair_session_t &sess, pt::ptree &tree, const args_t &args) {
auto encrypted_response = util::from_hex_vec(get_arg(args, "serverchallengeresp"), true);
std::vector<uint8_t> decrypted;
crypto::cipher::ecb_t cipher(*sess.cipher_key, false);
cipher.decrypt(encrypted_response, decrypted);
sess.clienthash = std::move(decrypted);
auto serversecret = sess.serversecret;
auto sign = crypto::sign256(crypto::pkey(conf_intern.pkey), serversecret);
serversecret.insert(std::end(serversecret), std::begin(sign), std::end(sign));
tree.put("root.pairingsecret", util::hex_vec(serversecret, true));
tree.put("root.paired", 1);
tree.put("root.<xmlattr>.status_code", 200);
}
void
clientchallenge(pair_session_t &sess, pt::ptree &tree, const args_t &args) {
auto challenge = util::from_hex_vec(get_arg(args, "clientchallenge"), true);
crypto::cipher::ecb_t cipher(*sess.cipher_key, false);
std::vector<uint8_t> decrypted;
cipher.decrypt(challenge, decrypted);
auto x509 = crypto::x509(conf_intern.servercert);
auto sign = crypto::signature(x509);
auto serversecret = crypto::rand(16);
decrypted.insert(std::end(decrypted), std::begin(sign), std::end(sign));
decrypted.insert(std::end(decrypted), std::begin(serversecret), std::end(serversecret));
auto hash = crypto::hash({ (char *) decrypted.data(), decrypted.size() });
auto serverchallenge = crypto::rand(16);
std::string plaintext;
plaintext.reserve(hash.size() + serverchallenge.size());
plaintext.insert(std::end(plaintext), std::begin(hash), std::end(hash));
plaintext.insert(std::end(plaintext), std::begin(serverchallenge), std::end(serverchallenge));
std::vector<uint8_t> encrypted;
cipher.encrypt(plaintext, encrypted);
sess.serversecret = std::move(serversecret);
sess.serverchallenge = std::move(serverchallenge);
tree.put("root.paired", 1);
tree.put("root.challengeresponse", util::hex_vec(encrypted, true));
tree.put("root.<xmlattr>.status_code", 200);
}
void
clientpairingsecret(std::shared_ptr<safe::queue_t<crypto::x509_t>> &add_cert, pair_session_t &sess, pt::ptree &tree, const args_t &args) {
auto &client = sess.client;
auto pairingsecret = util::from_hex_vec(get_arg(args, "clientpairingsecret"), true);
std::string_view secret { pairingsecret.data(), 16 };
std::string_view sign { pairingsecret.data() + secret.size(), crypto::digest_size };
assert((secret.size() + sign.size()) == pairingsecret.size());
auto x509 = crypto::x509(client.cert);
auto x509_sign = crypto::signature(x509);
std::string data;
data.reserve(sess.serverchallenge.size() + x509_sign.size() + secret.size());
data.insert(std::end(data), std::begin(sess.serverchallenge), std::end(sess.serverchallenge));
data.insert(std::end(data), std::begin(x509_sign), std::end(x509_sign));
data.insert(std::end(data), std::begin(secret), std::end(secret));
auto hash = crypto::hash(data);
// if hash not correct, probably MITM
if (!std::memcmp(hash.data(), sess.clienthash.data(), hash.size()) && crypto::verify256(crypto::x509(client.cert), secret, sign)) {
tree.put("root.paired", 1);
add_cert->raise(crypto::x509(client.cert));
auto it = map_id_sess.find(client.uniqueID);
update_id_client(client.uniqueID, std::move(client.cert), op_e::ADD);
map_id_sess.erase(it);
}
else {
map_id_sess.erase(client.uniqueID);
tree.put("root.paired", 0);
}
tree.put("root.<xmlattr>.status_code", 200);
}
template <class T>
struct tunnel;
template <>
struct tunnel<SimpleWeb::HTTPS> {
static auto constexpr to_string = "HTTPS"sv;
};
template <>
struct tunnel<SimpleWeb::HTTP> {
static auto constexpr to_string = "NONE"sv;
};
template <class T>
void
print_req(std::shared_ptr<typename SimpleWeb::ServerBase<T>::Request> request) {
BOOST_LOG(debug) << "TUNNEL :: "sv << tunnel<T>::to_string;
BOOST_LOG(debug) << "METHOD :: "sv << request->method;
BOOST_LOG(debug) << "DESTINATION :: "sv << request->path;
for (auto &[name, val] : request->header) {
BOOST_LOG(debug) << name << " -- " << val;
}
BOOST_LOG(debug) << " [--] "sv;
for (auto &[name, val] : request->parse_query_string()) {
BOOST_LOG(debug) << name << " -- " << val;
}
BOOST_LOG(debug) << " [--] "sv;
}
template <class T>
void
not_found(std::shared_ptr<typename SimpleWeb::ServerBase<T>::Response> response, std::shared_ptr<typename SimpleWeb::ServerBase<T>::Request> request) {
print_req<T>(request);
pt::ptree tree;
tree.put("root.<xmlattr>.status_code", 404);
std::ostringstream data;
pt::write_xml(data, tree);
response->write(data.str());
*response
<< "HTTP/1.1 404 NOT FOUND\r\n"
<< data.str();
response->close_connection_after_response = true;
}
template <class T>
void
pair(std::shared_ptr<safe::queue_t<crypto::x509_t>> &add_cert, std::shared_ptr<typename SimpleWeb::ServerBase<T>::Response> response, std::shared_ptr<typename SimpleWeb::ServerBase<T>::Request> request) {
print_req<T>(request);
pt::ptree tree;
auto fg = util::fail_guard([&]() {
std::ostringstream data;
pt::write_xml(data, tree);
response->write(data.str());
response->close_connection_after_response = true;
});
auto args = request->parse_query_string();
if (args.find("uniqueid"s) == std::end(args)) {
tree.put("root.<xmlattr>.status_code", 400);
tree.put("root.<xmlattr>.status_message", "Missing uniqueid parameter");
return;
}
auto uniqID { get_arg(args, "uniqueid") };
auto sess_it = map_id_sess.find(uniqID);
args_t::const_iterator it;
if (it = args.find("phrase"); it != std::end(args)) {
if (it->second == "getservercert"sv) {
pair_session_t sess;
sess.client.uniqueID = std::move(uniqID);
sess.client.cert = util::from_hex_vec(get_arg(args, "clientcert"), true);
BOOST_LOG(debug) << sess.client.cert;
auto ptr = map_id_sess.emplace(sess.client.uniqueID, std::move(sess)).first;
ptr->second.async_insert_pin.salt = std::move(get_arg(args, "salt"));
if (config::sunshine.flags[config::flag::PIN_STDIN]) {
std::string pin;
std::cout << "Please insert pin: "sv;
std::getline(std::cin, pin);
getservercert(ptr->second, tree, pin);
}
else {
ptr->second.async_insert_pin.response = std::move(response);
fg.disable();
return;
}
}
else if (it->second == "pairchallenge"sv) {
tree.put("root.paired", 1);
tree.put("root.<xmlattr>.status_code", 200);
}
}
else if (it = args.find("clientchallenge"); it != std::end(args)) {
clientchallenge(sess_it->second, tree, args);
}
else if (it = args.find("serverchallengeresp"); it != std::end(args)) {
serverchallengeresp(sess_it->second, tree, args);
}
else if (it = args.find("clientpairingsecret"); it != std::end(args)) {
clientpairingsecret(add_cert, sess_it->second, tree, args);
}
else {
tree.put("root.<xmlattr>.status_code", 404);
tree.put("root.<xmlattr>.status_message", "Invalid pairing request");
}
}
/**
* @brief Compare the user supplied pin to the Moonlight pin.
* @param pin The user supplied pin.
* @return `true` if the pin is correct, `false` otherwise.
*
* EXAMPLES:
* ```cpp
* bool pin_status = nvhttp::pin("1234");
* ```
*/
bool
pin(std::string pin) {
pt::ptree tree;
if (map_id_sess.empty()) {
return false;
}
auto &sess = std::begin(map_id_sess)->second;
getservercert(sess, tree, pin);
// response to the request for pin
std::ostringstream data;
pt::write_xml(data, tree);
auto &async_response = sess.async_insert_pin.response;
if (async_response.has_left() && async_response.left()) {
async_response.left()->write(data.str());
}
else if (async_response.has_right() && async_response.right()) {
async_response.right()->write(data.str());
}
else {
return false;
}
// reset async_response
async_response = std::decay_t<decltype(async_response.left())>();
// response to the current request
return true;
}
template <class T>
void
pin(std::shared_ptr<typename SimpleWeb::ServerBase<T>::Response> response, std::shared_ptr<typename SimpleWeb::ServerBase<T>::Request> request) {
print_req<T>(request);
response->close_connection_after_response = true;
auto address = request->remote_endpoint().address().to_string();
auto ip_type = net::from_address(address);
if (ip_type > http::origin_pin_allowed) {
BOOST_LOG(info) << "/pin: ["sv << address << "] -- denied"sv;
response->write(SimpleWeb::StatusCode::client_error_forbidden);
return;
}
bool pinResponse = pin(request->path_match[1]);
if (pinResponse) {
response->write(SimpleWeb::StatusCode::success_ok);
}
else {
response->write(SimpleWeb::StatusCode::client_error_im_a_teapot);
}
}
template <class T>
void
serverinfo(std::shared_ptr<typename SimpleWeb::ServerBase<T>::Response> response, std::shared_ptr<typename SimpleWeb::ServerBase<T>::Request> request) {
print_req<T>(request);
int pair_status = 0;
if constexpr (std::is_same_v<SimpleWeb::HTTPS, T>) {
auto args = request->parse_query_string();
auto clientID = args.find("uniqueid"s);
if (clientID != std::end(args)) {
if (auto it = map_id_client.find(clientID->second); it != std::end(map_id_client)) {
pair_status = 1;
}
}
}
auto local_endpoint = request->local_endpoint();
pt::ptree tree;
tree.put("root.<xmlattr>.status_code", 200);
tree.put("root.hostname", config::nvhttp.sunshine_name);
tree.put("root.appversion", VERSION);
tree.put("root.GfeVersion", GFE_VERSION);
tree.put("root.uniqueid", http::unique_id);
tree.put("root.HttpsPort", map_port(PORT_HTTPS));
tree.put("root.ExternalPort", map_port(PORT_HTTP));
tree.put("root.mac", platf::get_mac_address(local_endpoint.address().to_string()));
tree.put("root.MaxLumaPixelsHEVC", video::active_hevc_mode > 1 ? "1869449984" : "0");
tree.put("root.LocalIP", local_endpoint.address().to_string());
uint32_t codec_mode_flags = SCM_H264;
if (video::active_hevc_mode >= 2) {
codec_mode_flags |= SCM_HEVC;
}
if (video::active_hevc_mode >= 3) {
codec_mode_flags |= SCM_HEVC_MAIN10;
}
if (video::active_av1_mode >= 2) {
codec_mode_flags |= SCM_AV1_MAIN8;
}
if (video::active_av1_mode >= 3) {
codec_mode_flags |= SCM_AV1_MAIN10;
}
tree.put("root.ServerCodecModeSupport", codec_mode_flags);
pt::ptree display_nodes;
for (auto &resolution : config::nvhttp.resolutions) {
auto pred = [](auto ch) { return ch == ' ' || ch == '\t' || ch == 'x'; };
auto middle = std::find_if(std::begin(resolution), std::end(resolution), pred);
if (middle == std::end(resolution)) {
BOOST_LOG(warning) << resolution << " is not in the proper format for a resolution: WIDTHxHEIGHT"sv;
continue;
}
auto width = util::from_chars(&*std::begin(resolution), &*middle);
auto height = util::from_chars(&*(middle + 1), &*std::end(resolution));
for (auto fps : config::nvhttp.fps) {
pt::ptree display_node;
display_node.put("Width", width);
display_node.put("Height", height);
display_node.put("RefreshRate", fps);
display_nodes.add_child("DisplayMode", display_node);
}
}
if (!config::nvhttp.resolutions.empty()) {
tree.add_child("root.SupportedDisplayMode", display_nodes);
}
auto current_appid = proc::proc.running();
tree.put("root.PairStatus", pair_status);
tree.put("root.currentgame", current_appid);
tree.put("root.state", current_appid > 0 ? "SUNSHINE_SERVER_BUSY" : "SUNSHINE_SERVER_FREE");
std::ostringstream data;
pt::write_xml(data, tree);
response->write(data.str());
response->close_connection_after_response = true;
}
void
applist(resp_https_t response, req_https_t request) {
print_req<SimpleWeb::HTTPS>(request);
pt::ptree tree;
auto g = util::fail_guard([&]() {
std::ostringstream data;
pt::write_xml(data, tree);
response->write(data.str());
response->close_connection_after_response = true;
});
auto &apps = tree.add_child("root", pt::ptree {});
apps.put("<xmlattr>.status_code", 200);
for (auto &proc : proc::proc.get_apps()) {
pt::ptree app;
app.put("IsHdrSupported"s, video::active_hevc_mode == 3 ? 1 : 0);
app.put("AppTitle"s, proc.name);
app.put("ID", proc.id);
apps.push_back(std::make_pair("App", std::move(app)));
}
}
void
launch(bool &host_audio, resp_https_t response, req_https_t request) {
print_req<SimpleWeb::HTTPS>(request);
pt::ptree tree;
auto g = util::fail_guard([&]() {
std::ostringstream data;
pt::write_xml(data, tree);
response->write(data.str());
response->close_connection_after_response = true;
});
if (rtsp_stream::session_count() == config::stream.channels) {
tree.put("root.resume", 0);
tree.put("root.<xmlattr>.status_code", 503);
tree.put("root.<xmlattr>.status_message", "The host's concurrent stream limit has been reached. Stop an existing stream or increase the 'Channels' value in the Sunshine Web UI.");
return;
}
auto args = request->parse_query_string();
if (
args.find("rikey"s) == std::end(args) ||
args.find("rikeyid"s) == std::end(args) ||
args.find("localAudioPlayMode"s) == std::end(args) ||
args.find("appid"s) == std::end(args)) {
tree.put("root.resume", 0);
tree.put("root.<xmlattr>.status_code", 400);
tree.put("root.<xmlattr>.status_message", "Missing a required launch parameter");
return;
}
auto appid = util::from_view(get_arg(args, "appid"));
auto current_appid = proc::proc.running();
if (current_appid > 0) {
tree.put("root.resume", 0);
tree.put("root.<xmlattr>.status_code", 400);
tree.put("root.<xmlattr>.status_message", "An app is already running on this host");
return;
}
// Probe encoders again before streaming to ensure our chosen
// encoder matches the active GPU (which could have changed
// due to hotplugging, driver crash, primary monitor change,
// or any number of other factors).
if (rtsp_stream::session_count() == 0) {
if (video::probe_encoders()) {
tree.put("root.<xmlattr>.status_code", 503);
tree.put("root.<xmlattr>.status_message", "Failed to initialize video capture/encoding. Is a display connected and turned on?");
tree.put("root.gamesession", 0);
return;
}
}
host_audio = util::from_view(get_arg(args, "localAudioPlayMode"));
auto launch_session = make_launch_session(host_audio, args);
if (appid > 0) {
auto err = proc::proc.execute(appid, launch_session);
if (err) {
tree.put("root.<xmlattr>.status_code", err);
tree.put("root.<xmlattr>.status_message", "Failed to start the specified application");
tree.put("root.gamesession", 0);
return;
}
}
rtsp_stream::launch_session_raise(launch_session);
tree.put("root.<xmlattr>.status_code", 200);
tree.put("root.sessionUrl0", "rtsp://"s + request->local_endpoint().address().to_string() + ':' + std::to_string(map_port(rtsp_stream::RTSP_SETUP_PORT)));
tree.put("root.gamesession", 1);
}
void
resume(bool &host_audio, resp_https_t response, req_https_t request) {
print_req<SimpleWeb::HTTPS>(request);
pt::ptree tree;
auto g = util::fail_guard([&]() {
std::ostringstream data;
pt::write_xml(data, tree);
response->write(data.str());
response->close_connection_after_response = true;
});
// It is possible that due a race condition that this if-statement gives a false negative,
// that is automatically resolved in rtsp_server_t
if (rtsp_stream::session_count() == config::stream.channels) {
tree.put("root.resume", 0);
tree.put("root.<xmlattr>.status_code", 503);
tree.put("root.<xmlattr>.status_message", "The host's concurrent stream limit has been reached. Stop an existing stream or increase the 'Channels' value in the Sunshine Web UI.");
return;
}
auto current_appid = proc::proc.running();
if (current_appid == 0) {
tree.put("root.resume", 0);
tree.put("root.<xmlattr>.status_code", 503);
tree.put("root.<xmlattr>.status_message", "No running app to resume");
return;
}
auto args = request->parse_query_string();
if (
args.find("rikey"s) == std::end(args) ||
args.find("rikeyid"s) == std::end(args)) {
tree.put("root.resume", 0);
tree.put("root.<xmlattr>.status_code", 400);
tree.put("root.<xmlattr>.status_message", "Missing a required resume parameter");
return;
}
if (rtsp_stream::session_count() == 0) {
// Probe encoders again before streaming to ensure our chosen
// encoder matches the active GPU (which could have changed
// due to hotplugging, driver crash, primary monitor change,
// or any number of other factors).
if (video::probe_encoders()) {
tree.put("root.resume", 0);
tree.put("root.<xmlattr>.status_code", 503);
tree.put("root.<xmlattr>.status_message", "Failed to initialize video capture/encoding. Is a display connected and turned on?");
return;
}
// Newer Moonlight clients send localAudioPlayMode on /resume too,
// so we should use it if it's present in the args and there are
// no active sessions we could be interfering with.
if (args.find("localAudioPlayMode"s) != std::end(args)) {
host_audio = util::from_view(get_arg(args, "localAudioPlayMode"));
}
}
rtsp_stream::launch_session_raise(make_launch_session(host_audio, args));
tree.put("root.<xmlattr>.status_code", 200);
tree.put("root.sessionUrl0", "rtsp://"s + request->local_endpoint().address().to_string() + ':' + std::to_string(map_port(rtsp_stream::RTSP_SETUP_PORT)));
tree.put("root.resume", 1);
}
void
cancel(resp_https_t response, req_https_t request) {
print_req<SimpleWeb::HTTPS>(request);
pt::ptree tree;
auto g = util::fail_guard([&]() {
std::ostringstream data;
pt::write_xml(data, tree);
response->write(data.str());
response->close_connection_after_response = true;
});
// It is possible that due a race condition that this if-statement gives a false positive,
// the client should try again
if (rtsp_stream::session_count() != 0) {
tree.put("root.resume", 0);
tree.put("root.<xmlattr>.status_code", 503);
tree.put("root.<xmlattr>.status_message", "All sessions must be disconnected before quitting");
return;
}
tree.put("root.cancel", 1);
tree.put("root.<xmlattr>.status_code", 200);
if (proc::proc.running() > 0) {
proc::proc.terminate();
}
}
void
appasset(resp_https_t response, req_https_t request) {
print_req<SimpleWeb::HTTPS>(request);
auto args = request->parse_query_string();
auto app_image = proc::proc.get_app_image(util::from_view(get_arg(args, "appid")));
std::ifstream in(app_image, std::ios::binary);
SimpleWeb::CaseInsensitiveMultimap headers;
headers.emplace("Content-Type", "image/png");
response->write(SimpleWeb::StatusCode::success_ok, in, headers);
response->close_connection_after_response = true;
}
/**
* @brief Start the nvhttp server.
*
* EXAMPLES:
* ```cpp
* nvhttp::start();
* ```
*/
void
start() {
auto shutdown_event = mail::man->event<bool>(mail::shutdown);
auto port_http = map_port(PORT_HTTP);
auto port_https = map_port(PORT_HTTPS);
bool clean_slate = config::sunshine.flags[config::flag::FRESH_STATE];
if (!clean_slate) {
load_state();
}
conf_intern.pkey = read_file(config::nvhttp.pkey.c_str());
conf_intern.servercert = read_file(config::nvhttp.cert.c_str());
crypto::cert_chain_t cert_chain;
for (auto &[_, client] : map_id_client) {
for (auto &cert : client.certs) {
cert_chain.add(crypto::x509(cert));
}
}
auto add_cert = std::make_shared<safe::queue_t<crypto::x509_t>>(30);
// /resume doesn't always get the parameter "localAudioPlayMode"
// /launch will store it in host_audio
bool host_audio {};
https_server_t https_server { config::nvhttp.cert, config::nvhttp.pkey };
http_server_t http_server;
// Verify certificates after establishing connection
https_server.verify = [&cert_chain, add_cert](SSL *ssl) {
crypto::x509_t x509 { SSL_get_peer_certificate(ssl) };
if (!x509) {
BOOST_LOG(info) << "unknown -- denied"sv;
return 0;
}
int verified = 0;
auto fg = util::fail_guard([&]() {
char subject_name[256];
X509_NAME_oneline(X509_get_subject_name(x509.get()), subject_name, sizeof(subject_name));
BOOST_LOG(debug) << subject_name << " -- "sv << (verified ? "verified"sv : "denied"sv);
});
while (add_cert->peek()) {
char subject_name[256];
auto cert = add_cert->pop();
X509_NAME_oneline(X509_get_subject_name(cert.get()), subject_name, sizeof(subject_name));
BOOST_LOG(debug) << "Added cert ["sv << subject_name << ']';
cert_chain.add(std::move(cert));
}
auto err_str = cert_chain.verify(x509.get());
if (err_str) {
BOOST_LOG(warning) << "SSL Verification error :: "sv << err_str;
return verified;
}
verified = 1;
return verified;
};
https_server.on_verify_failed = [](resp_https_t resp, req_https_t req) {
pt::ptree tree;
auto g = util::fail_guard([&]() {
std::ostringstream data;
pt::write_xml(data, tree);
resp->write(data.str());
resp->close_connection_after_response = true;
});
tree.put("root.<xmlattr>.status_code"s, 401);
tree.put("root.<xmlattr>.query"s, req->path);
tree.put("root.<xmlattr>.status_message"s, "The client is not authorized. Certificate verification failed."s);
};
https_server.default_resource["GET"] = not_found<SimpleWeb::HTTPS>;
https_server.resource["^/serverinfo$"]["GET"] = serverinfo<SimpleWeb::HTTPS>;
https_server.resource["^/pair$"]["GET"] = [&add_cert](auto resp, auto req) { pair<SimpleWeb::HTTPS>(add_cert, resp, req); };
https_server.resource["^/applist$"]["GET"] = applist;
https_server.resource["^/appasset$"]["GET"] = appasset;
https_server.resource["^/launch$"]["GET"] = [&host_audio](auto resp, auto req) { launch(host_audio, resp, req); };
https_server.resource["^/pin/([0-9]+)$"]["GET"] = pin<SimpleWeb::HTTPS>;
https_server.resource["^/resume$"]["GET"] = [&host_audio](auto resp, auto req) { resume(host_audio, resp, req); };
https_server.resource["^/cancel$"]["GET"] = cancel;
https_server.config.reuse_address = true;
https_server.config.address = "0.0.0.0"s;
https_server.config.port = port_https;
http_server.default_resource["GET"] = not_found<SimpleWeb::HTTP>;
http_server.resource["^/serverinfo$"]["GET"] = serverinfo<SimpleWeb::HTTP>;
http_server.resource["^/pair$"]["GET"] = [&add_cert](auto resp, auto req) { pair<SimpleWeb::HTTP>(add_cert, resp, req); };
http_server.resource["^/pin/([0-9]+)$"]["GET"] = pin<SimpleWeb::HTTP>;
http_server.config.reuse_address = true;
http_server.config.address = "0.0.0.0"s;
http_server.config.port = port_http;
auto accept_and_run = [&](auto *http_server) {
try {
http_server->start();
}
catch (boost::system::system_error &err) {
// It's possible the exception gets thrown after calling http_server->stop() from a different thread
if (shutdown_event->peek()) {
return;
}
BOOST_LOG(fatal) << "Couldn't start http server on ports ["sv << port_https << ", "sv << port_https << "]: "sv << err.what();
shutdown_event->raise(true);
return;
}
};
std::thread ssl { accept_and_run, &https_server };
std::thread tcp { accept_and_run, &http_server };
// Wait for any event
shutdown_event->view();
https_server.stop();
http_server.stop();
ssl.join();
tcp.join();
}
/**
* @brief Remove all paired clients.
*
* EXAMPLES:
* ```cpp
* nvhttp::erase_all_clients();
* ```
*/
void
erase_all_clients() {
map_id_client.clear();
save_state();
}
} // namespace nvhttp
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