static void Init()
{
Hosts = new HostsEditor(GetHostsFileName());
try
{
// Create default hosts file if not exists
var hosts_file = Hosts.FileName;
if (!File.Exists(hosts_file))
{
File.WriteAllText(hosts_file, new HostsItem("127.0.0.1", "localhost").ToString());
}
// Try to create backup on first run
var backup_file = hosts_file + ".backup";
if (!File.Exists(backup_file))
{
ForceCopy(hosts_file, backup_file);
}
}
catch
{
throw new Exception("hosts file does not exist");
}
}
static void Run(string[] args, bool interactive)
{
try
{
ArgsQueue = new Queue <string>(args);
string Mode = (ArgsQueue.Count > 0) ? ArgsQueue.Dequeue().ToLower() : "help";
string HostsFile = GetHostsFileName();
string BackupHostsFile = HostsFile + ".backup";
string RollbackHostsFile = HostsFile + ".rollback";
// Check permissions
FileIOPermission HostsPermissions = new FileIOPermission(FileIOPermissionAccess.AllAccess, HostsFile);
if (!SecurityManager.IsGranted(HostsPermissions))
{
throw new Exception("No write permission to the hosts file");
}
// Create default hosts file if not exists
if (!File.Exists(HostsFile))
{
File.WriteAllText(HostsFile, new HostsItem("127.0.0.1", "localhost").ToString());
}
switch (Mode)
{
case "open":
if (IsUnix)
{
break;
}
var exe = FileAssoc.GetExecutable(".txt") ?? "notepad";
Process.Start(exe, '"' + HostsFile + '"');
return;
case "backup":
if (ArgsQueue.Count > 0)
{
BackupHostsFile = HostsFile + "." + ArgsQueue.Dequeue().ToLower();
}
File.Copy(HostsFile, BackupHostsFile, true);
Console.WriteLine("[OK] Hosts file backed up successfully");
return;
case "restore":
if (ArgsQueue.Count > 0)
{
BackupHostsFile = HostsFile + "." + ArgsQueue.Dequeue().ToLower();
}
if (!File.Exists(BackupHostsFile))
{
throw new Exception("Backup file is not exists");
}
File.Copy(HostsFile, RollbackHostsFile, true);
File.Copy(BackupHostsFile, HostsFile, true);
Console.WriteLine("[OK] Hosts file restored successfully");
return;
case "rollback":
if (!File.Exists(RollbackHostsFile))
{
throw new Exception("Rollback file is not exists");
}
if (File.Exists(HostsFile))
{
File.Delete(HostsFile);
}
File.Move(RollbackHostsFile, HostsFile);
Console.WriteLine("[OK] Hosts file rolled back successfully");
return;
case "empty":
case "recreate":
File.Copy(HostsFile, RollbackHostsFile, true);
File.WriteAllText(HostsFile, new HostsItem("127.0.0.1", "localhost").ToString());
Console.WriteLine("[OK] New hosts file created successfully");
return;
case "help":
Help(interactive);
return;
}
// Try to create backup on first run
if (!File.Exists(BackupHostsFile))
{
try
{
File.Copy(HostsFile, BackupHostsFile);
}
catch {}
}
Hosts = new HostsEditor(HostsFile);
Hosts.Load();
List <HostsItem> Lines;
switch (Mode)
{
case "print":
case "raw":
case "file":
Console.WriteLine(File.ReadAllText(Hosts.FileName, Hosts.Encoding));
return;
case "list":
case "view":
case "select":
case "ls":
RunListMode(interactive);
return;
case "format":
Hosts.ResetFormat();
Console.WriteLine("[OK] Hosts file formatted successfully");
break;
case "clean":
Hosts.RemoveInvalid();
Hosts.ResetFormat();
Console.WriteLine("[OK] Hosts file cleaned successfully");
break;
case "add":
case "new":
RunAddMode();
break;
case "set":
RunUpdateMode(true);
break;
case "change":
case "update":
case "upd":
RunUpdateMode(false);
break;
case "rem":
case "rm":
case "remove":
case "del":
case "delete":
if (ArgsQueue.Count == 0)
{
throw new HostNotSpecifiedException();
}
Lines = Hosts.GetMatched(args[1]);
if (Lines.Count == 0)
{
throw new HostNotFoundException(args[1]);
}
foreach (HostsItem Line in Lines)
{
Hosts.Remove(Line);
Console.WriteLine("[REMOVED] {0} {1}", Line.IP.ToString(), Line.Aliases.ToString());
}
break;
case "on":
case "enable":
if (ArgsQueue.Count == 0)
{
throw new HostNotSpecifiedException();
}
Lines = Hosts.GetMatched(args[1]);
if (Lines.Count == 0)
{
throw new HostNotFoundException(args[1]);
}
foreach (HostsItem Line in Lines)
{
Line.Enabled = true;
Console.WriteLine("[ENABLED] {0} {1}", Line.IP.ToString(), Line.Aliases.ToString());
}
break;
case "off":
case "disable":
if (ArgsQueue.Count == 0)
{
throw new HostNotSpecifiedException();
}
Lines = Hosts.GetMatched(args[1]);
if (Lines.Count == 0)
{
throw new HostNotFoundException(args[1]);
}
foreach (HostsItem Line in Lines)
{
Line.Enabled = false;
Console.WriteLine("[DISABLED] {0} {1}", Line.IP.ToString(), Line.Aliases.ToString());
}
break;
case "hide":
if (ArgsQueue.Count == 0)
{
throw new HostNotSpecifiedException();
}
Lines = Hosts.GetMatched(args[1]);
if (Lines.Count == 0)
{
throw new HostNotFoundException(args[1]);
}
foreach (HostsItem Line in Lines)
{
Line.Hidden = true;
Console.WriteLine("[HIDDEN] {0} {1}", Line.IP.ToString(), Line.Aliases.ToString());
}
break;
case "show":
if (ArgsQueue.Count == 0)
{
throw new HostNotSpecifiedException();
}
Lines = Hosts.GetMatched(args[1]);
if (Lines.Count == 0)
{
throw new HostNotFoundException(args[1]);
}
foreach (HostsItem Line in Lines)
{
Line.Hidden = false;
Console.WriteLine("[SHOWN] {0} {1}", Line.IP.ToString(), Line.Aliases.ToString());
}
break;
default:
Console.WriteLine("[ERROR] Unknown command");
Help(interactive);
return;
}
File.Copy(HostsFile, RollbackHostsFile, true);
Hosts.Save();
}
catch (HostNotSpecifiedException)
{
Console.WriteLine("[ERROR] Host not specified");
}
catch (HostNotFoundException e)
{
Console.WriteLine("[ERROR] Host '{0}' not found", e.Host);
}
catch (Exception e)
{
#if DEBUG
Console.WriteLine("[ERROR] " + e.ToString());
#else
Console.WriteLine("[ERROR] " + e.Message);
#endif
}
}
public HostsEditor(HostsEditor source) : base(source.Select(item => item.Clone()).ToArray())
{
this.FileName = source.FileName;
this.Encoding = source.Encoding;
}