// Host Update
//
// Douglas Thrift
//
// $Id$

#include "HostUpdate.hpp"
#include "Host.hpp"

int main(int argc, char* argv[])
{
	HostUpdate update;

	return 0;
}

HostUpdate::HostUpdate()
{
	struct stat* hosts = new struct stat;

	if (stat("hosts", hosts) != 0)
	{
		mkdir("hosts");
	}

	delete [] hosts;

	chdir("hosts");

	CgiEnvironment env = cgi.getEnvironment();

	string agent = env.getUserAgent();
	string method = env.getRequestMethod();

	if (agent.find("Host Update/") == 0 && method == "POST" && agent.find(" (")
		!= string::npos && agent.find(") libwww-perl/") != string::npos)
	{
		update(env, agent);
	}
	else
	{
		display(env);
	}
}

HostUpdate::~HostUpdate()
{
	//
}

void HostUpdate::update(CgiEnvironment& env, const string& agent)
{
	cout << "Content-Type: text/plain\n\n";

	vector<FormEntry> entries;

	if (!cgi.getElement("host", entries)) return;
	if (entries[0].isEmpty()) return;

	string host = entries[0].getStrippedValue(), name = env.getRemoteHost(),
		address = env.getRemoteAddr();

	if (name == address) name = "";

	string::size_type begin = agent.find('(') + 1, end = agent.find(')',
		begin);
	string platform = agent.substr(begin, end - begin);

	cout << "host=" << host << '\n'
		<< "name=" << name << '\n'
		<< "address=" << address << '\n'
		<< "platform=" << platform << '\n';

	Host client(host, name, address, platform), saved(host);

	if (client != ++saved) client--;
}

void HostUpdate::display(CgiEnvironment& env)
{
	cout << "Status: 401\nWWW-Authenticate: Basic realm=\"Host Update\"\n\n";
}