Java KnownHosts.HOSTKEY_HAS_CHANGED属性代码示例

public boolean verifyServerHostKey(String hostname, int port, String serverHostKeyAlgorithm, byte[] serverHostKey)
		throws Exception
{
	int result = database.verifyHostkey(hostname, serverHostKeyAlgorithm, serverHostKey);

	switch (result)
	{
	case KnownHosts.HOSTKEY_IS_OK:

		return true; // We are happy

	case KnownHosts.HOSTKEY_IS_NEW:

		// Unknown host? Blindly accept the key and put it into the cache.
		// Well, you definitely can do better (e.g., ask the user).

		// The following call will ONLY put the key into the memory cache!
		// To save it in a known hosts file, also call "KnownHosts.addHostkeyToFile(...)"
		database.addHostkey(new String[] { hostname }, serverHostKeyAlgorithm, serverHostKey);

		return true;

	case KnownHosts.HOSTKEY_HAS_CHANGED:

		// Close the connection if the hostkey has changed.
		// Better: ask user and add new key to database.
		return false;

	default:
		throw new IllegalStateException();
	}
}
 

public boolean verifyServerHostKey(String hostname, int port, String serverHostKeyAlgorithm, byte[] serverHostKey)
		throws Exception
{
	int result = database.verifyHostkey(hostname, serverHostKeyAlgorithm, serverHostKey);

	switch (result)
	{
	case KnownHosts.HOSTKEY_IS_OK:

		return true; // We are happy

	case KnownHosts.HOSTKEY_IS_NEW:

		// Unknown host? Blindly accept the key and put it into the cache.
		// Well, you definitely can do better (e.g., ask the user).

		// The following call will ONLY put the key into the memory cache!
		// To save it in a known hosts file, also call "KnownHosts.addHostkeyToFile(...)"
		database.addHostkey(new String[] { hostname }, serverHostKeyAlgorithm, serverHostKey);

		return true;

	case KnownHosts.HOSTKEY_HAS_CHANGED:

		// The connection if the hostkey has changed.
		// put the key into the memory cache!
		database.addHostkey(new String[] { hostname }, serverHostKeyAlgorithm, serverHostKey);
		
		return true;

	default:
		throw new IllegalStateException();
	}
}
 

public boolean verifyServerHostKey( String hostname, int port, String serverHostKeyAlgorithm,
  byte[] serverHostKey ) throws Exception {
  int result = database.verifyHostkey( hostname, serverHostKeyAlgorithm, serverHostKey );

  switch ( result ) {
    case KnownHosts.HOSTKEY_IS_OK:

      return true; // We are happy

    case KnownHosts.HOSTKEY_IS_NEW:

      // Unknown host? Blindly accept the key and put it into the cache.
      // Well, you definitely can do better (e.g., ask the user).

      // The following call will ONLY put the key into the memory cache!
      // To save it in a known hosts file, also call "KnownHosts.addHostkeyToFile(...)"
      database.addHostkey( new String[] { hostname }, serverHostKeyAlgorithm, serverHostKey );

      return true;

    case KnownHosts.HOSTKEY_HAS_CHANGED:

      // The connection if the hostkey has changed.
      // put the key into the memory cache!
      database.addHostkey( new String[] { hostname }, serverHostKeyAlgorithm, serverHostKey );

      return true;

    default:
      throw new IllegalStateException();
  }
}
 

public boolean verifyServerHostKey(String hostname, int port,
		String serverHostKeyAlgorithm, byte[] serverHostKey) throws IOException {

	// read in all known hosts from hostdb
	KnownHosts hosts = manager.hostdb.getKnownHosts();
	Boolean result;

	String matchName = String.format(Locale.US, "%s:%d", hostname, port);

	String fingerprint = KnownHosts.createHexFingerprint(serverHostKeyAlgorithm, serverHostKey);

	String algorithmName;
	if ("ssh-rsa".equals(serverHostKeyAlgorithm))
		algorithmName = "RSA";
	else if ("ssh-dss".equals(serverHostKeyAlgorithm))
		algorithmName = "DSA";
	else if (serverHostKeyAlgorithm.startsWith("ecdsa-"))
		algorithmName = "EC";
	else if ("ssh-ed25519".equals(serverHostKeyAlgorithm))
		algorithmName = "Ed25519";
	else
		algorithmName = serverHostKeyAlgorithm;

	switch (hosts.verifyHostkey(matchName, serverHostKeyAlgorithm, serverHostKey)) {
	case KnownHosts.HOSTKEY_IS_OK:
		bridge.outputLine(manager.res.getString(R.string.terminal_sucess, algorithmName, fingerprint));
		return true;

	case KnownHosts.HOSTKEY_IS_NEW:
		// prompt user
		bridge.outputLine(manager.res.getString(R.string.host_authenticity_warning, hostname));
		bridge.outputLine(manager.res.getString(R.string.host_fingerprint, algorithmName, fingerprint));

		result = bridge.promptHelper.requestBooleanPrompt(null, manager.res.getString(R.string.prompt_continue_connecting));
		if (result == null) {
			return false;
		}
		if (result) {
			// save this key in known database
			manager.hostdb.saveKnownHost(hostname, port, serverHostKeyAlgorithm, serverHostKey);
		}
		return result;

	case KnownHosts.HOSTKEY_HAS_CHANGED:
		String header = String.format("@   %s   @",
				manager.res.getString(R.string.host_verification_failure_warning_header));

		char[] atsigns = new char[header.length()];
		Arrays.fill(atsigns, '@');
		String border = new String(atsigns);

		bridge.outputLine(border);
		bridge.outputLine(header);
		bridge.outputLine(border);

		bridge.outputLine(manager.res.getString(R.string.host_verification_failure_warning));

		bridge.outputLine(String.format(manager.res.getString(R.string.host_fingerprint),
				algorithmName, fingerprint));

		// Users have no way to delete keys, so we'll prompt them for now.
		result = bridge.promptHelper.requestBooleanPrompt(null, manager.res.getString(R.string.prompt_continue_connecting));
		if (result != null && result) {
			// save this key in known database
			manager.hostdb.saveKnownHost(hostname, port, serverHostKeyAlgorithm, serverHostKey);
			return true;
		} else {
			return false;
		}

	default:
		bridge.outputLine(manager.res.getString(R.string.terminal_failed));
		return false;
	}
}
 

public boolean verifyServerHostKey(String hostname, int port,
		String serverHostKeyAlgorithm, byte[] serverHostKey) throws IOException {

	// read in all known hosts from hostdb
	KnownHosts hosts = manager.hostdb.getKnownHosts();
	Boolean result;

	String matchName = String.format(Locale.US, "%s:%d", hostname, port);

	String fingerprint = KnownHosts.createHexFingerprint(serverHostKeyAlgorithm, serverHostKey);

	String algorithmName;
	if ("ssh-rsa".equals(serverHostKeyAlgorithm))
		algorithmName = "RSA";
	else if ("ssh-dss".equals(serverHostKeyAlgorithm))
		algorithmName = "DSA";
	else if (serverHostKeyAlgorithm.startsWith("ecdsa-"))
	    algorithmName = "EC";
	else
		algorithmName = serverHostKeyAlgorithm;

	switch(hosts.verifyHostkey(matchName, serverHostKeyAlgorithm, serverHostKey)) {
	case KnownHosts.HOSTKEY_IS_OK:
		bridge.outputLine(manager.res.getString(R.string.terminal_sucess, algorithmName, fingerprint));
		return true;

	case KnownHosts.HOSTKEY_IS_NEW:
		// prompt user
		bridge.outputLine(manager.res.getString(R.string.host_authenticity_warning, hostname));
		bridge.outputLine(manager.res.getString(R.string.host_fingerprint, algorithmName, fingerprint));

		result = bridge.promptHelper.requestBooleanPrompt(null, manager.res.getString(R.string.prompt_continue_connecting));
		if(result == null) return false;
		if(result.booleanValue()) {
			// save this key in known database
			manager.hostdb.saveKnownHost(hostname, port, serverHostKeyAlgorithm, serverHostKey);
		}
		return result.booleanValue();

	case KnownHosts.HOSTKEY_HAS_CHANGED:
		String header = String.format("@   %s   @",
				manager.res.getString(R.string.host_verification_failure_warning_header));

		char[] atsigns = new char[header.length()];
		Arrays.fill(atsigns, '@');
		String border = new String(atsigns);

		bridge.outputLine(border);
		bridge.outputLine(manager.res.getString(R.string.host_verification_failure_warning));
		bridge.outputLine(border);

		bridge.outputLine(String.format(manager.res.getString(R.string.host_fingerprint),
				algorithmName, fingerprint));

		// Users have no way to delete keys, so we'll prompt them for now.
		result = bridge.promptHelper.requestBooleanPrompt(null, manager.res.getString(R.string.prompt_continue_connecting));
		if(result == null) return false;
		if(result.booleanValue()) {
			// save this key in known database
			manager.hostdb.saveKnownHost(hostname, port, serverHostKeyAlgorithm, serverHostKey);
		}
		return result.booleanValue();

		default:
			return false;
	}
}