static void AddHostsItem(NetAddress address, HostAliases aliases, string comment)
{
if (aliases.Count == 0)
{
throw new HostNotSpecifiedException();
}
// Remove duplicates
foreach (HostName host in aliases)
{
var lines = Hosts.FindAll(item => item.Valid && item.IP.Type == address.Type && item.Aliases.Contains(host));
foreach (var line in lines)
{
if (line.Aliases.Count == 1)
{
Hosts.Remove(line);
Console.WriteLine("[REMOVED] {0} {1}", line.IP.ToString(), line.Aliases.ToString());
}
else
{
line.Aliases.Remove(host);
Console.WriteLine("[UPDATED] {0} {1}", line.IP.ToString(), line.Aliases.ToString());
}
}
}
// New host
var new_item = new HostsItem(address, aliases, comment == null ? "" : comment.Trim());
Hosts.Add(new_item);
Console.WriteLine("[ADDED] {0} {1}", new_item.IP.ToString(), new_item.Aliases.ToString());
}
public HostsItem(NetAddress ip, HostAliases hosts, string comment = "")
{
Enabled = true;
IP = ip;
Aliases = hosts;
Comment = comment;
Valid = true;
}
public HostsItem(NetAddress ip, HostName host, string comment = "")
{
Enabled = true;
IP = ip;
Aliases = new HostAliases(host);
Comment = comment;
Valid = true;
}
public HostsItem(string ip, string[] hosts, string comment = "")
{
Enabled = true;
IP = new NetAddress(ip);
Aliases = new HostAliases(hosts);
Comment = comment;
Valid = true;
}
static void RunAddMode()
{
if (ArgsQueue.Count == 0)
{
throw new HostNotSpecifiedException();
}
HostAliases aliases = new HostAliases();
NetAddress address = new NetAddress("127.0.0.1");
string comment = "";
bool inComment = false;
while (ArgsQueue.Count > 0)
{
string arg = ArgsQueue.Dequeue();
if (inComment)
{
comment += arg + " ";
continue;
}
if (arg.Length > 0 && arg[0] == '#')
{
inComment = true;
comment = (arg.Length > 1) ? (arg.Substring(1) + " ") : "";
continue;
}
arg = arg.ToLower();
NetAddress TestAddress = NetAddress.TryCreate(arg);
if (TestAddress != null)
{
address = TestAddress;
continue;
}
HostName TestHostName = HostName.TryCreate(arg);
if (TestHostName != null)
{
aliases.Add(TestHostName);
continue;
}
throw new Exception(String.Format("Unknown argument '{0}'", arg));
}
HostsItem line = new HostsItem(address, aliases, comment);
Hosts.Add(line);
Console.WriteLine("[ADDED] {0} {1}", line.IP.ToString(), line.Aliases.ToString());
}
public bool Parse(string value)
{
ParsedString = value;
try
{
var match = HostRowPattern.Match(value);
if (!match.Success)
{
throw new FormatException();
}
Enabled = value[0] != '#';
IP = new NetAddress(match.Groups["ip"].Value);
Aliases = new HostAliases(match.Groups["hosts"].Value);
Comment = match.Groups["comment"].Value;
Hidden = false;
if (!String.IsNullOrEmpty(Comment))
{
Hidden = Comment[0] == '!';
if (Hidden)
{
Comment = Comment.Substring(1).Trim();
}
}
Valid = true;
}
catch
{
Enabled = false;
Hidden = false;
IP = null;
Aliases = null;
Comment = null;
Valid = false;
}
ParsedHash = HalfMD5.ComputeHash(ToString());
return(Valid);
}
public int Set(HostAliases hosts)
{
Clear(); return(Add(hosts));
}
public HostAliases(HostAliases hosts)
{
Set(hosts);
}
public int Add(HostAliases hosts)
{
return(Add(hosts.ToArray()));
}
static void RunAddMode()
{
if (ArgsQueue.Count == 0)
{
throw new HostNotSpecifiedException();
}
HostAliases aliases = new HostAliases();
NetAddress address_ipv4 = null;
NetAddress address_ipv6 = null;
string comment = "";
bool in_comment = false;
while (ArgsQueue.Count > 0)
{
string arg = ArgsQueue.Dequeue();
if (in_comment)
{
comment += arg + " ";
continue;
}
if (arg.Length > 0 && arg[0] == '#')
{
in_comment = true;
comment = (arg.Length > 1) ? (arg.Substring(1) + " ") : "";
continue;
}
arg = arg.ToLower();
var address_test = NetAddress.TryCreate(arg);
if (address_test != null)
{
if (address_test.Type == NetAddressType.IPv4)
{
address_ipv4 = address_test;
}
else
{
address_ipv6 = address_test;
}
continue;
}
var hostname_test = HostName.TryCreate(arg);
if (hostname_test != null)
{
aliases.Add(hostname_test);
continue;
}
throw new Exception(String.Format("Unknown argument '{0}'", arg));
}
if (address_ipv4 == null && address_ipv6 == null)
{
address_ipv4 = new NetAddress("127.0.0.1");
}
if (address_ipv4 != null)
{
AddHostsItem(address_ipv4, aliases, comment.Trim());
}
if (address_ipv6 != null)
{
AddHostsItem(address_ipv6, aliases, comment.Trim());
}
}
public void Add(NetAddress ip, HostAliases hosts, string comment = "")
{
base.Add(new HostsItem(ip, hosts, comment));
}
public bool Parse(string value)
{
SourceString = value;
try
{
value = value.Trim();
if (String.IsNullOrEmpty(value))
{
throw new FormatException();
}
if (value.IndexOfAny(new char[] { '\r', '\n' }) != -1)
{
throw new FormatException();
}
// Check if enabled.
Enabled = value[0] != '#';
if (!Enabled)
{
value = value.Substring(1).TrimStart();
}
if (String.IsNullOrEmpty(value))
{
throw new FormatException();
}
// Parse comment part.
Hidden = false;
Comment = null;
var comment_pos = value.IndexOf('#');
if (comment_pos != -1)
{
Comment = value.Substring(comment_pos + 1).Trim();
if (!String.IsNullOrEmpty(Comment))
{
Hidden = Comment[0] == '!';
if (Hidden)
{
Comment = Comment.Substring(1).Trim();
}
}
value = value.Substring(0, comment_pos).TrimEnd();
if (String.IsNullOrEmpty(value))
{
throw new FormatException();
}
}
// Parse IP and hosts.
var parts = value.Split(new char[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
if (parts.Length < 2)
{
throw new FormatException();
}
IP = new NetAddress(parts[0]);
Aliases = new HostAliases(parts.Skip(1).ToArray());
Valid = true;
}
catch
{
Enabled = false;
Hidden = false;
IP = null;
Aliases = null;
Comment = null;
Valid = false;
}
SourceHash = HalfMD5.ComputeHash(ToString());
return(Valid);
}
