/*
 * This file is a part of Winix
 * and is not publicly distributed
 * 
 * Copyright (c) 2011-2012, Tomasz Sowa
 * All rights reserved.
 * 
 */

#include "passwd.h"
#include "core/slog.h"
#include "functions/functions.h"


namespace Fun
{


Passwd::Passwd()
{
	fun.url = L"passwd";
}



bool Passwd::HasAccess()
{
	return cur->session->puser != 0;
}



bool Passwd::IsPasswordCorrect(const std::wstring & pass, const std::wstring & conf_pass, bool use_ses_log)
{
	if( pass != conf_pass )
	{
		log << log2 << "Passwd: passwords are different" << logend;

		if( use_ses_log )
			slog << logerror << T("adduser_err_passwords_different") << logend;

		return false;
	}

	if( pass.size() < config->pass_min_size )
	{
		log << log2 << "Passwd: password is too small" << logend;

		if( use_ses_log )
			slog << logerror << T("adduser_err_password_too_small") << " "
				 << config->pass_min_size << " " << T("adduser_err_password_too_small2") << logend;

		return false;
	}

	if( pass.size() > WINIX_ACCOUNT_MAX_PASSWORD_SIZE )
	{
		log << log2 << "Passwd: password can't be longer than: " << WINIX_ACCOUNT_MAX_PASSWORD_SIZE << " characters" << logend;

		if( use_ses_log )
			slog << logerror << T("adduser_err_password_too_big") << " " << WINIX_ACCOUNT_MAX_PASSWORD_SIZE
				 << " " << T("adduser_err_password_too_big2") << logend;

		return false;
	}


return true;
}



bool Passwd::ChangePassword(long user_id, const std::wstring & new_password)
{
bool result = false;

	User * puser = system->users.GetUser(user_id);

	if( puser )
	{
		up.pass = new_password;
		system->crypt.PassHashCrypt(up);
		result = (db->ChangeUserPass(user_id, up) == WINIX_ERR_OK);

		if( result )
			log << log2 << "Passwd: password for user " << puser->name << " has been changed" << logend;
		else
			log << log1 << "Passwd: I cannot change password -- database problem" << logend;
	}
	else
	{
		log << log1 << "Passwd: there is no a user with id: " << user_id << logend;
	}

return result;
}




void Passwd::ChangePassword(User * puser)
{
long user_id;

	const std::wstring & pass_cur  = cur->request->PostVar(L"passwordcur");
	const std::wstring & pass_new  = cur->request->PostVar(L"passwordnew");
	const std::wstring & pass_conf = cur->request->PostVar(L"passwordconfirm");

	if( !cur->session->puser->super_user && !functions->fun_login.CheckUserPass(puser->name, pass_cur, user_id) )
	{
		log << log3 << "Passwd: incorrect current password" << logend;
		slog << logerror << T("passwd_err_bad_current_password") << logend;
		return;
	}

	if( !IsPasswordCorrect(pass_new, pass_conf) )
		return;

	if( ChangePassword(cur->session->puser->id, pass_new) )
	{
		slog << loginfo << T("passwd_password_changed") << logend;
		system->RedirectToLastItem();
	}
}


/*
	if you are a root (super_user) you can change a password for everyone
	(the html form has a select option)

	but if you are not a root you can change only your password
	and you should provide your current password as well
*/
void Passwd::MakePost()
{
const std::wstring * plogin;

	if( cur->session->puser )
	{
		if( cur->session->puser->super_user )
			plogin = &cur->request->PostVar(L"login");
		else
			plogin = &cur->session->puser->name;

		User * puser = system->users.GetUser(*plogin);

		if( puser )
			ChangePassword(puser);
		else
			log << log1 << "Passwd: there is no such a user: " << *plogin << logend;
	}
}



} // namespace