public override HostKey[] GetHostKey(string host, string type)
{
lock (pool)
{
int count = 0;
for (int i = 0; i < pool.Count; i++)
{
HostKey hk = (HostKey)pool[i];
if (hk.type == HostKey.UNKNOWN)
{
continue;
}
if (host == null || (hk.IsMatched(host) && (type == null || hk.GetType().Equals(type
))))
{
count++;
}
}
if (count == 0)
{
return(null);
}
HostKey[] foo = new HostKey[count];
int j = 0;
for (int i_1 = 0; i_1 < pool.Count; i_1++)
{
HostKey hk = (HostKey)pool[i_1];
if (hk.type == HostKey.UNKNOWN)
{
continue;
}
if (host == null || (hk.IsMatched(host) && (type == null || hk.GetType().Equals(type
))))
{
foo[j++] = hk;
}
}
return(foo);
}
}
public override void Remove(string host, string type, byte[] key)
{
bool sync = false;
lock (pool)
{
for (int i = 0; i < pool.Count; i++)
{
HostKey hk = (HostKey)(pool[i]);
if (host == null || (hk.IsMatched(host) && (type == null || (hk.GetType().Equals(
type) && (key == null || Util.Array_equals(key, hk.key))))))
{
string hosts = hk.GetHost();
if (hosts.Equals(host) || ((hk is KnownHosts.HashedHostKey) && ((KnownHosts.HashedHostKey
)hk).IsHashed()))
{
pool.RemoveElement(hk);
}
else
{
hk.host = DeleteSubString(hosts, host);
}
sync = true;
}
}
}
if (sync)
{
try
{
Sync();
}
catch (Exception)
{
}
}
}
/// <exception cref="NSch.JSchException"></exception>
private void CheckHost(string chost, int port, KeyExchange kex)
{
string shkc = GetConfig("StrictHostKeyChecking");
if (hostKeyAlias != null)
{
chost = hostKeyAlias;
}
//System.err.println("shkc: "+shkc);
byte[] K_S = kex.GetHostKey();
string key_type = kex.GetKeyType();
string key_fprint = kex.GetFingerPrint();
if (hostKeyAlias == null && port != 22)
{
chost = ("[" + chost + "]:" + port);
}
// hostkey=new HostKey(chost, K_S);
HostKeyRepository hkr = jsch.GetHostKeyRepository();
int i = 0;
lock (hkr)
{
i = hkr.Check(chost, K_S);
}
bool insert = false;
if ((shkc.Equals("ask") || shkc.Equals("yes")) && i == HostKeyRepository.CHANGED)
{
string file = null;
lock (hkr)
{
file = hkr.GetKnownHostsRepositoryID();
}
if (file == null)
{
file = "known_hosts";
}
bool b = false;
if (userinfo != null)
{
string message = "WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!\n" + "IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!\n"
+ "Someone could be eavesdropping on you right now (man-in-the-middle attack)!\n"
+ "It is also possible that the " + key_type + " host key has just been changed.\n"
+ "The fingerprint for the " + key_type + " key sent by the remote host is\n" +
key_fprint + ".\n" + "Please contact your system administrator.\n" + "Add correct host key in "
+ file + " to get rid of this message.";
if (shkc.Equals("ask"))
{
b = userinfo.PromptYesNo(message + "\nDo you want to delete the old key and insert the new key?"
);
}
else
{
// shkc.equals("yes")
userinfo.ShowMessage(message);
}
}
if (!b)
{
throw new JSchException("HostKey has been changed: " + chost);
}
lock (hkr)
{
hkr.Remove(chost, (key_type.Equals("DSA") ? "ssh-dss" : "ssh-rsa"), null);
insert = true;
}
}
if ((shkc.Equals("ask") || shkc.Equals("yes")) && (i != HostKeyRepository.OK) &&
!insert)
{
if (shkc.Equals("yes"))
{
throw new JSchException("reject HostKey: " + host);
}
//System.err.println("finger-print: "+key_fprint);
if (userinfo != null)
{
bool foo = userinfo.PromptYesNo("The authenticity of host '" + host + "' can't be established.\n"
+ key_type + " key fingerprint is " + key_fprint + ".\n" + "Are you sure you want to continue connecting?"
);
if (!foo)
{
throw new JSchException("reject HostKey: " + host);
}
insert = true;
}
else
{
if (i == HostKeyRepository.NOT_INCLUDED)
{
throw new JSchException("UnknownHostKey: " + host + ". " + key_type + " key fingerprint is "
+ key_fprint);
}
else
{
throw new JSchException("HostKey has been changed: " + host);
}
}
}
if (shkc.Equals("no") && HostKeyRepository.NOT_INCLUDED == i)
{
insert = true;
}
if (i == HostKeyRepository.OK && JSch.GetLogger().IsEnabled(Logger.INFO))
{
JSch.GetLogger().Log(Logger.INFO, "Host '" + host + "' is known and mathces the "
+ key_type + " host key");
}
if (insert && JSch.GetLogger().IsEnabled(Logger.WARN))
{
JSch.GetLogger().Log(Logger.WARN, "Permanently added '" + host + "' (" + key_type
+ ") to the list of known hosts.");
}
string hkh = GetConfig("HashKnownHosts");
if (hkh.Equals("yes") && (hkr is KnownHosts))
{
hostkey = ((KnownHosts)hkr).CreateHashedHostKey(chost, K_S);
}
else
{
hostkey = new HostKey(chost, K_S);
}
if (insert)
{
lock (hkr)
{
hkr.Add(hostkey, userinfo);
}
}
}
public abstract void Add(HostKey hostkey, UserInfo ui);
public abstract void Add(HostKey hostkey, UserInfo ui);
/// <exception cref="NSch.JSchException"></exception>
internal virtual void SetKnownHosts(InputStream foo)
{
pool.Clear();
StringBuilder sb = new StringBuilder();
byte i;
int j;
bool error = false;
try
{
InputStream fis = foo;
string host;
string key = null;
int type;
byte[] buf = new byte[1024];
int bufl = 0;
while (true)
{
bufl = 0;
while (true)
{
j = fis.Read();
if (j == -1)
{
if (bufl == 0)
{
goto loop_break;
}
else
{
break;
}
}
if (j == unchecked ((int)(0x0d)))
{
continue;
}
if (j == unchecked ((int)(0x0a)))
{
break;
}
if (buf.Length <= bufl)
{
if (bufl > 1024 * 10)
{
break;
}
// too long...
byte[] newbuf = new byte[buf.Length * 2];
System.Array.Copy(buf, 0, newbuf, 0, buf.Length);
buf = newbuf;
}
buf[bufl++] = unchecked ((byte)j);
}
j = 0;
while (j < bufl)
{
i = buf[j];
if (i == ' ' || i == '\t')
{
j++;
continue;
}
if (i == '#')
{
AddInvalidLine(Util.Byte2str(buf, 0, bufl));
goto loop_continue;
}
break;
}
if (j >= bufl)
{
AddInvalidLine(Util.Byte2str(buf, 0, bufl));
goto loop_continue;
}
sb.Length = 0;
while (j < bufl)
{
i = buf[j++];
if (i == unchecked ((int)(0x20)) || i == '\t')
{
break;
}
sb.Append((char)i);
}
host = sb.ToString();
if (j >= bufl || host.Length == 0)
{
AddInvalidLine(Util.Byte2str(buf, 0, bufl));
goto loop_continue;
}
sb.Length = 0;
type = -1;
while (j < bufl)
{
i = buf[j++];
if (i == unchecked ((int)(0x20)) || i == '\t')
{
break;
}
sb.Append((char)i);
}
if (sb.ToString().Equals("ssh-dss"))
{
type = HostKey.SSHDSS;
}
else
{
if (sb.ToString().Equals("ssh-rsa"))
{
type = HostKey.SSHRSA;
}
else
{
j = bufl;
}
}
if (j >= bufl)
{
AddInvalidLine(Util.Byte2str(buf, 0, bufl));
goto loop_continue;
}
sb.Length = 0;
while (j < bufl)
{
i = buf[j++];
if (i == unchecked ((int)(0x0d)))
{
continue;
}
if (i == unchecked ((int)(0x0a)))
{
break;
}
sb.Append((char)i);
}
key = sb.ToString();
if (key.Length == 0)
{
AddInvalidLine(Util.Byte2str(buf, 0, bufl));
goto loop_continue;
}
//System.err.println(host);
//System.err.println("|"+key+"|");
HostKey hk = null;
hk = new KnownHosts.HashedHostKey(this, host, type, Util.FromBase64(Util.Str2byte
(key), 0, key.Length));
pool.Add(hk);
loop_continue :;
}
loop_break :;
fis.Close();
if (error)
{
throw new JSchException("KnownHosts: invalid format");
}
}
catch (Exception e)
{
if (e is JSchException)
{
throw (JSchException)e;
}
if (e is Exception)
{
throw new JSchException(e.ToString(), (Exception)e);
}
throw new JSchException(e.ToString());
}
}
public override void Add(HostKey hostkey, UserInfo userinfo)
{
int type = hostkey.type;
string host = hostkey.GetHost();
byte[] key = hostkey.key;
HostKey hk = null;
lock (pool)
{
for (int i = 0; i < pool.Count; i++)
{
hk = (HostKey)(pool[i]);
if (hk.IsMatched(host) && hk.type == type)
{
}
}
}
hk = hostkey;
pool.Add(hk);
string bar = GetKnownHostsRepositoryID();
if (bar != null)
{
bool foo = true;
FilePath goo = new FilePath(bar);
if (!goo.Exists())
{
foo = false;
if (userinfo != null)
{
foo = userinfo.PromptYesNo(bar + " does not exist.\n" + "Are you sure you want to create it?"
);
goo = goo.GetParentFile();
if (foo && goo != null && !goo.Exists())
{
foo = userinfo.PromptYesNo("The parent directory " + goo + " does not exist.\n" +
"Are you sure you want to create it?");
if (foo)
{
if (!goo.Mkdirs())
{
userinfo.ShowMessage(goo + " has not been created.");
foo = false;
}
else
{
userinfo.ShowMessage(goo + " has been succesfully created.\nPlease check its access permission."
);
}
}
}
if (goo == null)
{
foo = false;
}
}
}
if (foo)
{
try
{
Sync(bar);
}
catch (Exception e)
{
System.Console.Error.WriteLine("sync known_hosts: " + e);
}
}
}
}
/// <exception cref="NSch.JSchException"></exception>
private void AddInvalidLine(string line)
{
HostKey hk = new HostKey(line, HostKey.UNKNOWN, null);
pool.Add(hk);
}
public override HostKey[] GetHostKey(string host, string type)
{
lock (pool)
{
int count = 0;
for (int i = 0; i < pool.Count; i++)
{
HostKey hk = (HostKey)pool[i];
if (hk.type == HostKey.UNKNOWN)
{
continue;
}
if (host == null || (hk.IsMatched(host) && (type == null || hk.GetType().Equals(type
))))
{
count++;
}
}
if (count == 0)
{
return null;
}
HostKey[] foo = new HostKey[count];
int j = 0;
for (int i_1 = 0; i_1 < pool.Count; i_1++)
{
HostKey hk = (HostKey)pool[i_1];
if (hk.type == HostKey.UNKNOWN)
{
continue;
}
if (host == null || (hk.IsMatched(host) && (type == null || hk.GetType().Equals(type
))))
{
foo[j++] = hk;
}
}
return foo;
}
}
public override void Add(HostKey hostkey, UserInfo userinfo)
{
int type = hostkey.type;
string host = hostkey.GetHost();
byte[] key = hostkey.key;
HostKey hk = null;
lock (pool)
{
for (int i = 0; i < pool.Count; i++)
{
hk = (HostKey)(pool[i]);
if (hk.IsMatched(host) && hk.type == type)
{
}
}
}
hk = hostkey;
pool.Add(hk);
string bar = GetKnownHostsRepositoryID();
if (bar != null)
{
bool foo = true;
FilePath goo = new FilePath(bar);
if (!goo.Exists())
{
foo = false;
if (userinfo != null)
{
foo = userinfo.PromptYesNo(bar + " does not exist.\n" + "Are you sure you want to create it?"
);
goo = goo.GetParentFile();
if (foo && goo != null && !goo.Exists())
{
foo = userinfo.PromptYesNo("The parent directory " + goo + " does not exist.\n" +
"Are you sure you want to create it?");
if (foo)
{
if (!goo.Mkdirs())
{
userinfo.ShowMessage(goo + " has not been created.");
foo = false;
}
else
{
userinfo.ShowMessage(goo + " has been succesfully created.\nPlease check its access permission."
);
}
}
}
if (goo == null)
{
foo = false;
}
}
}
if (foo)
{
try
{
Sync(bar);
}
catch (Exception e)
{
System.Console.Error.WriteLine("sync known_hosts: " + e);
}
}
}
}
/// <exception cref="NSch.JSchException"></exception>
private void AddInvalidLine(string line)
{
HostKey hk = new HostKey(line, HostKey.UNKNOWN, null);
pool.Add(hk);
}