first revision of new manager webapp

2007-09-11 15:22:02 +00:00
parent f0c156fbc9
commit 965e99b5bf
36 changed files with 3517 additions and 0 deletions
@@ -0,0 +1,160 @@
+/**
+ * @file manager.c
+ *
+ * @brief Implementation of manager_t.
+ *
+ */
+
+/*
+ * 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 database
+	 */
+	database_t *db;
+	
+	/**
+	 * 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->db->create_gateway_enumerator(this->db, 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->db->create_gateway_enumerator(this->db, this->user);
+		while (enumerator->enumerate(enumerator, &id, &name, &port, &address))
+		{
+			if (select_id == id)
+			{
+				if (port != 0)
+				{
+					host = host_create_from_string(address, port);
+					if (host)
+					{
+						this->gateway = gateway_create(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->db->login(this->db, username, password);
+	}
+	return this->user != 0;
+}
+
+/**
+ * Implementation of manager_t.logout.
+ */
+static void logout(private_manager_t *this)
+{
+	this->user = 0;
+	this->gateway->destroy(this->gateway);
+	this->gateway = NULL;
+}
+
+/**
+ * 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(database_t *database)
+{
+	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->db = database;
+	this->gateway = NULL;
+	
+	return &this->public;
+}
+