rcpp_framework/core/http/web_application.cpp

145 lines
3.6 KiB
C++

#include "web_application.h"
#include <functional>
#include <string>
#include "request.h"
#include "core/file_cache.h"
#include <iostream>
#include <stdio.h>
#include <stdlib.h>
void WebApplication::load_settings() {
}
void WebApplication::setup_routes() {
default_error_handler_func = WebApplication::default_fallback_error_handler;
error_handler_map[404] = WebApplication::default_404_error_handler;
}
void WebApplication::setup_middleware() {
//If you want sessions add this to your inherited class. Should probably be the first one.
//middlewares.push_back(HandlerInstance(::SessionManager::session_setup_middleware));
middlewares.push_back(HandlerInstance([this](Object *instance, Request *request){ this->default_routing_middleware(instance, request); }));
}
void WebApplication::default_routing_middleware(Object *instance, Request *request) {
std::string path = request->get_path_full();
if (FileCache::get_singleton()->wwwroot_has_file(path)) {
send_file(path, request);
return;
}
HandlerInstance handler_data;
//std::function<void(Object *, Request *)> func;
//if (path == "/") {
if (request->get_path_segment_count() == 0) {
//quick shortcut
handler_data = index_func;
} else {
const std::string main_route = request->get_current_path_segment();
handler_data = main_route_map[main_route];
request->push_path();
}
if (!handler_data.handler_func) {
send_error(404, request);
return;
}
request->handler_instance = handler_data;
request->next_stage();
}
void WebApplication::default_fallback_error_handler(int error_code, Request *request) {
request->compiled_body = default_generic_error_body;
request->send();
}
void WebApplication::default_404_error_handler(int error_code, Request *request) {
request->compiled_body = default_error_404_body;
request->send();
}
void WebApplication::handle_request(Request *request) {
request->middleware_stack = &middlewares;
//note that middlewares handle the routing -> WebApplication::default_routing_middleware by default
request->next_stage();
}
void WebApplication::send_error(int error_code, Request *request) {
std::function<void(int, Request *)> func = error_handler_map[error_code];
if (!func) {
default_error_handler_func(error_code, request);
return;
}
func(error_code, request);
}
void WebApplication::send_file(const std::string &path, Request *request) {
std::string fp = FileCache::get_singleton()->wwwroot + path;
request->send_file(fp);
}
void WebApplication::migrate() {
}
void WebApplication::register_request_update(Request *request) {
std::lock_guard<std::mutex> lock(_update_registered_requests_mutex);
_update_registered_requests.push_back(request);
}
void WebApplication::unregister_request_update(Request *request) {
std::lock_guard<std::mutex> lock(_update_registered_requests_mutex);
std::size_t s = _update_registered_requests.size();
for (std::size_t i = 0; i < s; ++i) {
Request *r = _update_registered_requests[i];
if (r == request) {
_update_registered_requests[i] = _update_registered_requests[s - 1];
_update_registered_requests.pop_back();
return;
}
}
}
void WebApplication::update() {
for (std::size_t i = 0; i < _update_registered_requests.size(); ++i) {
Request *r = _update_registered_requests[i];
r->update();
}
}
WebApplication::WebApplication() {
}
WebApplication::~WebApplication() {
main_route_map.clear();
error_handler_map.clear();
middlewares.clear();
}
std::string WebApplication::default_error_404_body = "<html><body>404 :(</body></html>";
std::string WebApplication::default_generic_error_body = "<html><body>Internal server error! :(</body></html>";