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/*
* Copyright (C) 2007 Martin Willi
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "manager.h"
#include "gateway.h"
#include <utils/linked_list.h>
typedef struct private_manager_t private_manager_t;
/**
* private data of manager
*/
struct private_manager_t {
/**
* public functions
*/
manager_t public;
/**
* underlying storage database
*/
storage_t *store;
/**
* user id, if we are logged in
*/
int user;
/**
* selected gateway
*/
gateway_t *gateway;
};
/**
* Implementation of manager_t.create_gateway_enumerator.
*/
static enumerator_t* create_gateway_enumerator(private_manager_t *this)
{
return this->store->create_gateway_enumerator(this->store, this->user);
}
/**
* Implementation of manager_t.select_gateway.
*/
static gateway_t* select_gateway(private_manager_t *this, int select_id)
{
if (select_id != 0)
{
enumerator_t *enumerator;
int id, port;
char *name, *address;
host_t *host;
if (this->gateway) this->gateway->destroy(this->gateway);
this->gateway = NULL;
enumerator = this->store->create_gateway_enumerator(this->store, this->user);
while (enumerator->enumerate(enumerator, &id, &name, &port, &address))
{
if (select_id == id)
{
if (port == 0)
{
this->gateway = gateway_create_unix(name);
}
else
{
host = host_create_from_string(address, port);
if (host)
{
this->gateway = gateway_create_tcp(name, host);
}
}
break;
}
}
enumerator->destroy(enumerator);
}
return this->gateway;
}
/**
* Implementation of manager_t.logged_in.
*/
static bool logged_in(private_manager_t *this)
{
return this->user != 0;
}
/**
* Implementation of manager_t.login.
*/
static bool login(private_manager_t *this, char *username, char *password)
{
if (!this->user)
{
this->user = this->store->login(this->store, username, password);
}
return this->user != 0;
}
/**
* Implementation of manager_t.logout.
*/
static void logout(private_manager_t *this)
{
if (this->gateway)
{
this->gateway->destroy(this->gateway);
this->gateway = NULL;
}
this->user = 0;
}
/**
* Implementation of manager_t.destroy
*/
static void destroy(private_manager_t *this)
{
if (this->gateway) this->gateway->destroy(this->gateway);
free(this);
}
/*
* see header file
*/
manager_t *manager_create(storage_t *storage)
{
private_manager_t *this = malloc_thing(private_manager_t);
this->public.login = (bool(*)(manager_t*, char *username, char *password))login;
this->public.logged_in = (bool(*)(manager_t*))logged_in;
this->public.logout = (void(*)(manager_t*))logout;
this->public.create_gateway_enumerator = (enumerator_t*(*)(manager_t*))create_gateway_enumerator;
this->public.select_gateway = (gateway_t*(*)(manager_t*, int id))select_gateway;
this->public.context.destroy = (void(*)(context_t*))destroy;
this->user = 0;
this->store = storage;
this->gateway = NULL;
return &this->public;
}
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