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tbs_web_server.cpp
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tbs_web_server.cpp
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#include <algorithm>
#include <boost/algorithm/string/replace.hpp>
#include <boost/bind.hpp>
#include <iostream>
#include "asserts.hpp"
#include "filesystem.hpp"
#include "foreach.hpp"
#include "formatter.hpp"
#include "formula_object.hpp"
#include "json_parser.hpp"
#include "module.hpp"
#include "string_utils.hpp"
#include "tbs_bot.hpp"
#include "tbs_server.hpp"
#include "tbs_web_server.hpp"
#include "unit_test.hpp"
#include "utils.hpp"
#include "variant.hpp"
namespace tbs {
namespace {
web_server* web_server_instance = NULL;
}
std::string global_debug_str;
using boost::asio::ip::tcp;
web_server::web_server(server& serv, boost::asio::io_service& io_service, int port)
: http::web_server(io_service, port), server_(serv), timer_(io_service)
{
web_server_instance = this;
timer_.expires_from_now(boost::posix_time::milliseconds(1000));
timer_.async_wait(boost::bind(&web_server::heartbeat, this));
}
web_server::~web_server()
{
web_server_instance = NULL;
}
void web_server::handle_post(socket_ptr socket, variant doc, const http::environment& env)
{
int session_id = -1;
std::map<std::string, std::string>::const_iterator i = env.find("cookie");
if(i != env.end()) {
const char* cookie_start = strstr(i->second.c_str(), " session=");
if(cookie_start != NULL) {
++cookie_start;
} else {
cookie_start = strstr(i->second.c_str(), "session=");
if(cookie_start != i->second.c_str()) {
cookie_start = NULL;
}
}
if(cookie_start) {
session_id = atoi(cookie_start+8);
}
}
if(doc["debug_session"].is_bool()) {
session_id = doc["debug_session"].as_bool();
}
server_.adopt_ajax_socket(socket, session_id, doc);
return;
}
namespace {
struct KnownFile {
const char* url;
const char* fname;
const char* type;
};
const KnownFile known_files[] = {
{"/tbs_monitor.html", "data/tbs/tbs_monitor.html", "text/html"},
{"/tbs_monitor.js", "data/tbs/tbs_monitor.js", "text/javascript"},
};
variant current_debug_state;
int debug_state_id = 0;
std::string current_debug_state_msg = "{ \"new_data\": false }";
std::vector<socket_ptr> debug_state_sockets;
}
void web_server::set_debug_state(variant v)
{
debug_state_id = rand();
current_debug_state = v;
std::map<variant, variant> m;
m[variant("info")] = current_debug_state;
m[variant("state")] = variant(debug_state_id);
m[variant("new_data")] = variant(true);
current_debug_state_msg = variant(&m).write_json();
foreach(socket_ptr sock, debug_state_sockets) {
web_server_instance->send_msg(sock, "text/json", current_debug_state_msg, "");
}
debug_state_sockets.clear();
}
void web_server::heartbeat()
{
foreach(socket_ptr sock, debug_state_sockets) {
send_msg(sock, "text/json", "{ \"new_data\": false }", "");
fprintf(stderr, "send no new data\n");
}
debug_state_sockets.clear();
timer_.expires_from_now(boost::posix_time::milliseconds(1000));
timer_.async_wait(boost::bind(&web_server::heartbeat, this));
}
void web_server::handle_get(socket_ptr socket,
const std::string& url,
const std::map<std::string, std::string>& args)
{
if(url == "/tbs_monitor") {
std::map<std::string,std::string>::const_iterator state_arg = args.find("state");
if(state_arg != args.end()) {
const int state_id = atoi(state_arg->second.c_str());
if(state_id == debug_state_id) {
debug_state_sockets.push_back(socket);
return;
}
fprintf(stderr, "send debug msg: %s\n", current_debug_state_msg.c_str());
send_msg(socket, "text/json", current_debug_state_msg, "");
return;
}
}
foreach(const KnownFile& f, known_files) {
if(url == f.url) {
send_msg(socket, f.type, sys::read_file(f.fname), "");
return;
}
}
std::cerr << "UNSUPPORTED GET REQUEST" << std::endl;
disconnect(socket);
}
}
namespace {
struct code_modified_exception {};
void on_code_modified()
{
fprintf(stderr, "code modified\n");
tbs::game::reload_game_types();
game_logic::formula_object::reload_classes();
throw code_modified_exception();
}
}
COMMAND_LINE_UTILITY(tbs_server) {
int port = 23456;
std::vector<std::string> bot_id;
if(args.size() > 0) {
std::vector<std::string>::const_iterator it = args.begin();
while(it != args.end()) {
if(*it == "--port" || *it == "--listen-port") {
it++;
if(it != args.end()) {
port = atoi(it->c_str());
ASSERT_LOG(port > 0 && port <= 65535, "tbs_server(): Port must lie in the range 1-65535.");
++it;
}
} else if(*it == "--bot") {
++it;
if(it != args.end()) {
bot_id.push_back(*it++);
}
} else {
++it;
}
}
}
const std::string MonitorDirs[] = { "data/tbs", "data/tbs_test", "data/classes" };
foreach(const std::string& dir, MonitorDirs) {
std::vector<std::string> files;
module::get_files_in_dir(dir, &files);
foreach(const std::string& fname, files) {
if(fname.size() > 4 && std::string(fname.end()-4,fname.end()) == ".cfg") {
std::string path = module::map_file(dir + "/" + fname);
std::cerr << "NOTIFY ON: " << path << "\n";
sys::notify_on_file_modification(path, on_code_modified);
}
}
}
std::cerr << "MONITOR URL: " << "http://localhost:" << port << "/tbs_monitor.html\n";
boost::asio::io_service io_service;
std::cerr << "tbs_server(): Listening on port " << std::dec << port << std::endl;
tbs::server s(io_service);
tbs::web_server ws(s, io_service, port);
std::vector<boost::intrusive_ptr<tbs::bot> > bots;
for(;;) {
try {
const assert_recover_scope assert_scope;
foreach(const std::string& id, bot_id) {
bots.push_back(boost::intrusive_ptr<tbs::bot>(new tbs::bot(io_service, "localhost", formatter() << port, json::parse_from_file("data/tbs_test/" + id + ".cfg"))));
}
} catch(validation_failure_exception& e) {
std::map<variant,variant> m;
m[variant("error")] = variant(e.msg);
tbs::web_server::set_debug_state(variant(&m));
} catch(json::parse_error& e) {
std::map<variant,variant> m;
m[variant("error")] = variant(e.message);
tbs::web_server::set_debug_state(variant(&m));
}
try {
io_service.run();
} catch(code_modified_exception&) {
s.clear_games();
}
}
}