/*
 * This file is a part of CMSLU -- Content Management System like Unix
 * and is not publicly distributed
 * 
 * Copyright (c) 2008, Tomasz Sowa
 * All rights reserved.
 * 
 */
 
#include "requestcontroller.h"



RequestController::RequestController()
{
}


RequestController::~RequestController()
{
	Close();
}


void RequestController::Close()
{
	// don't call close(0)
	// it will be closed next time during dup(s,0) 

	// if you closed the descriptor here
	// then the database would have that descriptor (during connecting)
	// and there'll be a problem in the next loop (after SIGHUP)
}



bool RequestController::Init()
{
	const char * sock = data.fcgi_socket.c_str();
	
	unlink(sock);



	int s = FCGX_OpenSocket(sock, 10);

	if( s < 0 )
	{
		log << log1 << "An error during creating a socket" << logend;
		return false;
	}


	chmod(sock, data.fcgi_socket_chmod);

	passwd * pw = getpwnam(data.fcgi_socket_user.c_str());
	
	if( !pw )
	{
		log << log1 << "There is no user: " << data.fcgi_socket_user << logend;	
		return false;
	}
	
	group * gr = getgrnam(data.fcgi_socket_group.c_str());

	if( !gr )
	{
		log << log1 << "There is no group: " << data.fcgi_socket_group << logend;	
		return false;
	}

	chown(sock, pw->pw_uid, gr->gr_gid);



	if( setuid(pw->pw_uid) < 0 )
	{
		log << log1 << "I can't change the user into: " << data.fcgi_socket_user << logend;	
		return false;
	}
	

	/*
	if( setgid(gr->gr_gid) < 0 )
	{
		int e = errno;
		
		log << log1 << "I can't change the group into: " << data.fcgi_socket_group << " " << gr->gr_gid << logend;	
		log << log1 << "errno: " << e << logend;
		return false;
	}
	*/


	dup2(s, 0);

//

	data.dir.ReadDirs();

//

	if( !content.Init() )
		return false;


return true;
}



void RequestController::Loop()
{
	while( FCGX_Accept(&request.in, &request.out, &request.err, &request.env) == 0 )
	{
		log << log2 << "start request" << logend;

		try
		{
			request.Clear();
			request.Read();	
		
			session_manager.SetSession(); // setting request.session as well
			request.session->CheckTimers();
			
			content.Make();
			request.SendAll();	
		
		}
		catch(const std::exception & e)
		{
			log << log1 << "uncaught std exception: " << e.what() << logend;	
		}
		catch(const Error & e)
		{
			log << log1 << "uncaught exception: Error: " << e << logend;	
		}
		catch(...)
		{
			log << log1 << "uncaught exception" << logend;	
		}
		

		log << log2 << "end request" << logend;
		log << log2 << "---------------------------------------------------------------------------------" << logend;


		// !! this should be immediately after FCGX_Accept() but signals don't want to break FCGX_Accept
		if( data.signal_hup )
		{
			FCGX_Finish();
			return;
		}
	}
}