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 = 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 HashedHostKey) &&
((HashedHostKey)hk).isHashed()))
{
pool.Remove(hk);
}
else
{
hk.host = deleteSubString(hosts, host);
}
sync = true;
}
}
}
if (sync)
{
try { Sync(); }
catch /*(Exception e)*/ { };
}
}
public override HostKey[] getHostKey(string host, string type)
{
lock (pool)
{
int count = 0;
for (int i = 0; i < pool.Count; i++)
{
HostKey hk = 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 = 0; i < pool.Count; i++)
{
HostKey hk = pool[i];
if (hk.type == HostKey.UNKNOWN)
{
continue;
}
if (host == null ||
(hk.isMatched(host) &&
(type == null || hk.getType().Equals(type))))
{
foo[j++] = hk;
}
}
return(foo);
}
}
private void checkHost(string chost, int port, KeyExchange kex)
{
string shkc = getConfig("StrictHostKeyChecking");
if (hostKeyAlias != null)
{
chost = hostKeyAlias;
}
//Console.Error.WriteLine("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);
}
//Console.Error.WriteLine("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);
}
}
}
internal void setKnownHosts(Stream foo)
{
pool.Clear();
StringBuilder sb = new StringBuilder();
byte i;
int j;
bool error = false;
try
{
Stream fis = foo;
string host;
string key = null;
int type;
byte[] buf = new byte[1024];
int bufl = 0;
while (true)
{
loop:
bufl = 0;
while (true)
{
j = fis.Read();
if (j == -1)
{
if (bufl == 0)
{
goto outloop;
}
else
{
break;
}
}
if (j == 0x0d)
{
continue;
}
if (j == 0x0a)
{
break;
}
if (buf.Length <= bufl)
{
if (bufl > 1024 * 10)
{
break; // too long...
}
byte[] newbuf = new byte[buf.Length * 2];
Array.Copy(buf, 0, newbuf, 0, buf.Length);
buf = newbuf;
}
buf[bufl++] = (byte)j;
}
j = 0;
while (j < bufl)
{
i = buf[j];
if (i == ' ' || i == '\t')
{
j++; continue;
}
if (i == '#')
{
addInvalidLine(Encoding.UTF8.GetString(buf, 0, bufl));
goto loop;
}
break;
}
if (j >= bufl)
{
addInvalidLine(Encoding.UTF8.GetString(buf, 0, bufl));
goto loop;
}
sb.Length = 0;
while (j < bufl)
{
i = buf[j++];
if (i == 0x20 || i == '\t')
{
break;
}
sb.Append((char)i);
}
host = sb.ToString();
if (j >= bufl || host.Length == 0)
{
addInvalidLine(Encoding.UTF8.GetString(buf, 0, bufl));
goto loop;
}
sb.Length = 0;
type = -1;
while (j < bufl)
{
i = buf[j++];
if (i == 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(Encoding.UTF8.GetString(buf, 0, bufl));
goto loop;
}
sb.Length = 0;
while (j < bufl)
{
i = buf[j++];
if (i == 0x0d)
{
continue;
}
if (i == 0x0a)
{
break;
}
sb.Append((char)i);
}
key = sb.ToString();
if (key.Length == 0)
{
addInvalidLine(Encoding.UTF8.GetString(buf, 0, bufl));
goto loop;
}
//Console.Error.WriteLine(host);
//Console.Error.WriteLine("|"+key+"|");
HostKey hk = null;
hk = new HashedHostKey(this, host, type,
Util.fromBase64(key.getBytes(), 0,
key.Length));
pool.Add(hk);
}
outloop:
fis.Close();
if (error)
{
throw new JSchException("KnownHosts: invalid format");
}
}
catch (Exception e)
{
if (e is JSchException)
{
throw (JSchException)e;
}
throw new JSchException(e.Message, e);
}
}
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 = pool[i];
if (hk.isMatched(host) && hk.type == type)
{
/*
* if(Util.array_equals(hk.key, key)){ return; }
* if(hk.host.Equals(host)){
* hk.key=key;
* return;
* }
* else{
* hk.host=deleteSubString(hk.host, host);
* break;
* }
*/
}
}
}
hk = hostkey;
pool.Add(hk);
string bar = getKnownHostsRepositoryID();
if (bar != null)
{
bool foo = true;
FileInfo goo = new FileInfo(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?"
);
DirectoryInfo dgoo = Directory.GetParent(bar);
if (foo && dgoo != null && !dgoo.Exists)
{
foo = userinfo.promptYesNo("The parent directory " + goo + " does not exist.\n" +
"Are you sure you want to create it?"
);
if (foo)
{
if (!dgoo.mkdirs())
{
userinfo.showMessage(goo + " has not been created.");
foo = false;
}
else
{
userinfo.showMessage(goo + " has been succesfully created.\nPlease check its access permission.");
}
}
}
if (dgoo == null)
{
foo = false;
}
}
}
if (foo)
{
try
{
Sync(bar);
}
catch (Exception e) { Console.Error.WriteLine("sync known_hosts: " + e); }
}
}
}
private void addInvalidLine(string line)
{
HostKey hk = new HostKey(line, HostKey.UNKNOWN, null);
pool.Add(hk);
}
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 = pool[i];
if (hk.isMatched(host) && hk.type == type)
{
/*
if(Util.array_equals(hk.key, key)){ return; }
if(hk.host.Equals(host)){
hk.key=key;
return;
}
else{
hk.host=deleteSubString(hk.host, host);
break;
}
*/
}
}
}
hk = hostkey;
pool.Add(hk);
string bar = getKnownHostsRepositoryID();
if (bar != null)
{
bool foo = true;
FileInfo goo = new FileInfo(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?"
);
DirectoryInfo dgoo = Directory.GetParent(bar);
if (foo && dgoo != null && !dgoo.Exists)
{
foo = userinfo.promptYesNo("The parent directory " + goo + " does not exist.\n" +
"Are you sure you want to create it?"
);
if (foo)
{
if (!dgoo.mkdirs())
{
userinfo.showMessage(goo + " has not been created.");
foo = false;
}
else
{
userinfo.showMessage(goo + " has been succesfully created.\nPlease check its access permission.");
}
}
}
if (dgoo == null) foo = false;
}
}
if (foo)
{
try
{
Sync(bar);
}
catch (Exception e) { Console.Error.WriteLine("sync known_hosts: " + e); }
}
}
}
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 = 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 = 0; i < pool.Count; i++)
{
HostKey hk = pool[i];
if (hk.type == HostKey.UNKNOWN) continue;
if (host == null ||
(hk.isMatched(host) &&
(type == null || hk.getType().Equals(type))))
{
foo[j++] = hk;
}
}
return foo;
}
}
public abstract void add(HostKey hostkey, UserInfo ui);