| | |
| | | |
| | | import org.apache.sshd.server.PublickeyAuthenticator; |
| | | import org.apache.sshd.server.session.ServerSession; |
| | | import org.slf4j.Logger; |
| | | import org.slf4j.LoggerFactory; |
| | | |
| | | import com.gitblit.manager.IAuthenticationManager; |
| | | import com.gitblit.models.UserModel; |
| | |
| | | */ |
| | | public class SshKeyAuthenticator implements PublickeyAuthenticator { |
| | | |
| | | protected final Logger log = LoggerFactory.getLogger(getClass()); |
| | | |
| | | protected final IKeyManager keyManager; |
| | | |
| | | protected final IAuthenticationManager authManager; |
| | |
| | | expireAfterAccess(15, TimeUnit.MINUTES). |
| | | maximumSize(100) |
| | | .build(new CacheLoader<String, List<PublicKey>>() { |
| | | @Override |
| | | public List<PublicKey> load(String username) { |
| | | return keyManager.getKeys(username); |
| | | } |
| | |
| | | @Override |
| | | public boolean authenticate(String username, final PublicKey suppliedKey, |
| | | final ServerSession session) { |
| | | final SshSession sd = session.getAttribute(SshSession.KEY); |
| | | final SshSession client = session.getAttribute(SshSession.KEY); |
| | | |
| | | if (client.getRemoteUser() != null) { |
| | | // TODO why do we re-authenticate? |
| | | log.info("{} has already authenticated!", username); |
| | | return true; |
| | | } |
| | | |
| | | username = username.toLowerCase(Locale.US); |
| | | try { |
| | | List<PublicKey> keys = sshKeyCache.get(username); |
| | | if (keys == null || keys.isEmpty()) { |
| | | sd.authenticationError(username, "no-matching-key"); |
| | | log.info("{} has not added any public keys for ssh authentication", username); |
| | | return false; |
| | | } |
| | | |
| | | for (PublicKey key : keys) { |
| | | if (key.equals(suppliedKey)) { |
| | | return validate(username, sd); |
| | | UserModel user = authManager.authenticate(username, key); |
| | | if (user != null) { |
| | | client.authenticationSuccess(username); |
| | | return true; |
| | | } |
| | | } |
| | | } |
| | | return false; |
| | | } catch (ExecutionException e) { |
| | | sd.authenticationError(username, "user-not-found"); |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | boolean validate(String username, SshSession sd) { |
| | | // now that the key has been validated, check with the authentication |
| | | // manager to ensure that this user exists and can authenticate |
| | | sd.authenticationSuccess(username); |
| | | UserModel user = authManager.authenticate(sd); |
| | | if (user != null) { |
| | | return true; |
| | | } |
| | | sd.authenticationError(username, "user-not-found"); |
| | | log.warn("could not authenticate {} for SSH using the supplied public key", username); |
| | | return false; |
| | | } |
| | | |
| | | public IKeyManager getKeyManager() { |
| | | return keyManager; |
| | | } |
| | | |
| | | |
| | | public Cache<String, List<PublicKey>> getKeyCache() { |
| | | return sshKeyCache; |
| | | } |