static void TestSessionManager()
{
// disk
//VolatileDisk disk = new VolatileDisk(1);
PersistentDisk disk = new PersistentDisk(1, "disk1");
// create and write our OS to disk if needed
CreateOSOnDisk(disk);
// set up file system and mount disk
disk.TurnOn();
FileSystem filesystem = new SimpleFS();
filesystem.Mount(disk, "/");
// security system
SecuritySystem security = new SimpleSecurity(filesystem, "passwd");
// add pete and his test data if needed
CreatePete(security, filesystem);
// session manager
ShellFactory shells = new SimpleShellFactory();
SessionManager sessionmanager = new SimpleSessionManager(security, filesystem, shells);
// terminal
TerminalDriver driver = new DotNetConsoleTerminal();
Terminal term = new Terminal(driver);
term.Connect();
// allow terminals to connect and establish new sessions for users
try
{
while (true)
{
Session session = sessionmanager.NewSession(term);
if (session == null)
{
throw new Exception("Failed to create new session!");
}
session.Run();
// after session exits, time to log out!
session.Logout();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
term.Disconnect();
disk.TurnOff();
}
static void TestSecuritySystem()
{
try
{
VolatileDisk disk = new VolatileDisk(0);
disk.TurnOn();
FileSystem fs = new SimpleFS();
fs.Format(disk);
fs.Mount(disk, "/");
SecuritySystem security = new SimpleSecurity(fs, "passwd");
security.AddUser("steven");
if (security.NeedsPassword("steven"))
{
security.SetPassword("steven", "foobar42");
}
int userID = security.Authenticate("steven", "foobar42");
Console.WriteLine("UserID " + userID.ToString());
Console.WriteLine("Username " + security.UserName(userID));
Console.WriteLine("Home Directory " + security.UserHomeDirectory(userID));
Console.WriteLine("Shell " + security.UserPreferredShell(userID));
// Try failure scenarios
// Add user "steven" again
TestSecurityException(() => { security.AddUser("steven"); });
// Password for no one
TestSecurityException(() => { security.NeedsPassword("nope"); });
// Set password for invalid user
TestSecurityException(() => { security.SetPassword("nope", "12345678"); });
// Set invalid password
TestSecurityException(() => { security.SetPassword("steven", "hat"); });
// Authenticate invalid user
TestSecurityException(() => { security.Authenticate("nope", "12345678"); });
// Authenticate invalid password
TestSecurityException(() => { security.Authenticate("steven", "hat"); });
// invalid user ID
TestSecurityException(() => { security.UserName(42); });
// invalid user ID
TestSecurityException(() => { security.UserHomeDirectory(42); });
// invalid user ID
TestSecurityException(() => { security.UserPreferredShell(42); });
// second security system
SecuritySystem security2 = new SimpleSecurity(fs, "passwd");
security2.Authenticate("steven", "foobar42");
fs.Unmount("/");
disk.TurnOff();
}
catch (Exception ex)
{
Console.WriteLine("Exception: " + ex.Message);
}
}
static void TestSessionManager()
{
SlowDisk disk = new SlowDisk(42);
disk.TurnOn();
FileSystem filesystem = new SimpleFS();
filesystem.Format(disk);
filesystem.Mount(disk, "/");
//make dir/files
Directory root = filesystem.GetRootDirectory();
Directory usersDir = root.CreateDirectory("users");
Directory johnDir = usersDir.CreateDirectory("john");
Directory subDir = johnDir.CreateDirectory("subdir");
subDir.CreateFile("file1");
subDir.CreateFile("file2");
// add an /etc/passwd file that contains users for security system.
SecuritySystem security = new SimpleSecurity();
security.AddUser("john");
security.SetPassword("john", "foo");
ShellFactory shells = new SimpleShellFactory();
SessionManager sessionManager = new SimpleSessionManager(security, filesystem, shells);
TerminalDriver driver = new DotNetConsoleTerminal();
Terminal term = new Terminal(driver);
term.Connect();
while (true)
{
Session session = sessionManager.NewSession(term);
if (session == null)
{
throw new Exception("Failed to get sessions!");
}
session.Run();
// after session exits, logout
session.Logout();
}
term.Disconnect();
}
static void CreateOSOnDisk(DiskDriver disk)
{
// create the operating system on disk if not present
disk.TurnOn();
// try to mount the disk, format if needed first
FileSystem filesystem = new SimpleFS();
try
{
filesystem.Mount(disk, "/");
}
catch (Exception)
{
filesystem.Format(disk);
filesystem.Mount(disk, "/");
}
Directory rootDir = filesystem.GetRootDirectory();
// password file for security subsystem if not present
if (filesystem.Find("/passwd") == null)
{
rootDir.CreateFile("passwd");
}
// user home directory and files if not present
if (filesystem.Find("/home") == null)
{
rootDir.CreateDirectory("home");
}
// root user if not present
SecuritySystem security = new SimpleSecurity(filesystem, "passwd");
try
{
security.AddUser("root");
}
catch (Exception)
{
}
disk.TurnOff();
}
static void TestSecuritySystem()
{
string username = "******";
SecuritySystem security = new SimpleSecurity();
security.AddUser(username);
if (security.NeedsPassword(username))
{
security.SetPassword(username, "test");
}
int userId = security.Authenticate(username, "test");
Console.WriteLine("UserID " + userId.ToString());
Console.WriteLine("Username " + security.UserName(userId));
Console.WriteLine("Home Directory " + security.UserHomeDirectory(userId));
Console.WriteLine("Shell " + security.UserPreferredShell(userId));
}