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/* Starshatter: The Open Source Project
Copyright (c) 2021-2024, Starshatter: The Open Source Project Contributors
Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
Copyright (c) 1997-2006, Destroyer Studios LLC.
AUTHOR: John DiCamillo
OVERVIEW
========
Network Server Pump for HTTP Server
*/
#include "HttpServletExec.h"
#include <chrono>
#include <cstdint>
#include <cstdio>
#include <thread>
#include "HttpRequest.h"
#include "HttpResponse.h"
#include "HttpServer.h"
#include "HttpServlet.h"
#include "HttpSession.h"
#include "List.h"
#include "HttpParam.h"
#include "Utils.h"
#include "NetLayer.h"
class HttpTestServlet : public HttpServlet
{
public:
HttpTestServlet() { }
virtual ~HttpTestServlet() { }
virtual bool DoGet(HttpRequest& request, HttpResponse& response)
{
char buffer[1024];
Text content;
content = "<html><head><title>HttpTestServlet</title></head>\n";
content += "<body bgcolor=\"#c0c0c0\" text=\"black\">\n<h1>HttpTestServlet</h1>\n";
content += "<br><h3>HttpSessionId:</h3><p>\n";
if (session)
content += session->GetID();
else
content += "No Session Found";
content += "<br>\n";
content += "<br><h3>URI Requested:</h3><p>\n";
content += request.URI();
content += "<br>\n";
if (request.GetQuery().size() > 0) {
content += "<br><h3>Query Parameters:</h3>\n";
ListIter<HttpParam> q_iter = request.GetQuery();
while (++q_iter) {
HttpParam* q = q_iter.value();
std::sprintf(buffer, "<b>%s:</b> <i>%s</i><br>\n", q->name.data(), q->value.data());
content += buffer;
}
}
content += "<br><h3>Request Headers:</h3>\n";
ListIter<HttpParam> h_iter = request.GetHeaders();
while (++h_iter) {
HttpParam* h = h_iter.value();
std::sprintf(buffer, "<b>%s:</b> <i>%s</i><br>\n", h->name.data(), h->value.data());
content += buffer;
}
if (request.GetCookies().size() > 0) {
content += "<br><h3>Cookies:</h3>\n";
ListIter<HttpParam> c_iter = request.GetCookies();
while (++c_iter) {
HttpParam* c = c_iter.value();
std::sprintf(buffer, "<b>%s:</b> <i>%s</i><br>\n", c->name.data(), c->value.data());
content += buffer;
}
}
content += "</body></html>\n\n";
response.SetStatus(HttpResponse::SC_OK);
response.AddHeader("MIME-Version", "1.0");
response.AddHeader("Content-Type", "text/html");
response.SetContent(content);
return true;
}
};
HttpServletExec::HttpServletExec(std::uint16_t port, int poolsize) :
HttpServer(port, poolsize),
session_timeout(60),
exec_shutdown(false)
{
http_server_name = "Generic HttpServletExec 1.0";
hsession = std::thread([&]{ CheckSessions(); });
}
HttpServletExec::~HttpServletExec()
{
if (!exec_shutdown)
exec_shutdown = true;
if (hsession.joinable())
hsession.join();
sessions.destroy();
}
HttpServlet*
HttpServletExec::GetServlet(HttpRequest& request)
{
return new HttpTestServlet;
}
HttpSession*
HttpServletExec::GetSession(HttpRequest& request)
{
HttpSession* session = 0;
Text reqID = request.GetCookie("SessionID");
if (reqID.length() > 0) {
ListIter<HttpSession> iter = sessions;
while (++iter && !session) {
HttpSession* s = iter.value();
if (s->GetID() == reqID) {
session = s;
session->Access();
}
}
}
if (!session) {
session = new HttpSession;
if (session) {
sessions.append(session);
::Print("HttpServletExec created new session '%s' for request '%s'\n",
(const char*) session->GetID(),
(const char*) request.RequestLine());
}
else {
::Print("HttpServletExec out of memory for request '%s'\n",
(const char*) request.RequestLine());
}
}
return session;
}
bool
HttpServletExec::DoGet(HttpRequest& request, HttpResponse& response)
{
bool result = false;
HttpSession* session = GetSession(request);
HttpServlet* servlet = GetServlet(request);
if (servlet) {
servlet->SetSession(session);
result = servlet->Service(request, response);
delete servlet;
}
if (result) {
response.SetHeader("Server", http_server_name);
if (session)
response.SetCookie("SessionID", session->GetID());
}
return result;
}
void
HttpServletExec::CheckSessions()
{
while (!exec_shutdown) {
sync.lock();
if (sessions.size()) {
ListIter<HttpSession> iter = sessions;
while (++iter) {
HttpSession* s = iter.value();
if (NetLayer::GetUTC() - s->GetLastAccess() > session_timeout) {
::Print("HttpServletExec deleting expired session '%s'\n", (const char*) s->GetID());
delete iter.removeItem();
}
}
}
DoSyncedCheck();
sync.unlock();
std::this_thread::sleep_for(std::chrono::milliseconds(100));
}
}
void
HttpServletExec::DoSyncedCheck()
{
}
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