From bf4fc5c25ec31566b0fc1ee2e5e8bc15e5512893 Mon Sep 17 00:00:00 2001
From: David Ostrovsky <david@ostrovsky.org>
Date: Thu, 10 Apr 2014 18:58:08 -0400
Subject: [PATCH] Add support for NIO2 IoSession
---
src/main/java/com/gitblit/transport/ssh/SshKeyAuthenticator.java | 81 +++++++++++++++++++++++++++++++++-------
1 files changed, 66 insertions(+), 15 deletions(-)
diff --git a/src/main/java/com/gitblit/transport/ssh/SshKeyAuthenticator.java b/src/main/java/com/gitblit/transport/ssh/SshKeyAuthenticator.java
index 4c97c58..d41afdd 100644
--- a/src/main/java/com/gitblit/transport/ssh/SshKeyAuthenticator.java
+++ b/src/main/java/com/gitblit/transport/ssh/SshKeyAuthenticator.java
@@ -1,26 +1,34 @@
/*
* Copyright 2014 gitblit.com.
*
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
*
- * http://www.apache.org/licenses/LICENSE-2.0
+ * http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
*/
package com.gitblit.transport.ssh;
import java.security.PublicKey;
+import java.util.List;
+import java.util.Locale;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
import org.apache.sshd.server.PublickeyAuthenticator;
import org.apache.sshd.server.session.ServerSession;
-import com.gitblit.manager.IGitblit;
+import com.gitblit.manager.IAuthenticationManager;
+import com.gitblit.models.UserModel;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
/**
*
@@ -29,15 +37,58 @@
*/
public class SshKeyAuthenticator implements PublickeyAuthenticator {
- protected final IGitblit gitblit;
+ protected final IKeyManager keyManager;
+
+ protected final IAuthenticationManager authManager;
- public SshKeyAuthenticator(IGitblit gitblit) {
- this.gitblit = gitblit;
+ LoadingCache<String, List<PublicKey>> sshKeyCache = CacheBuilder
+ .newBuilder().
+ expireAfterAccess(15, TimeUnit.MINUTES).
+ maximumSize(100)
+ .build(new CacheLoader<String, List<PublicKey>>() {
+ public List<PublicKey> load(String username) {
+ return keyManager.getKeys(username);
+ }
+ });
+
+ public SshKeyAuthenticator(IKeyManager keyManager, IAuthenticationManager authManager) {
+ this.keyManager = keyManager;
+ this.authManager = authManager;
}
@Override
- public boolean authenticate(String username, PublicKey key, ServerSession session) {
- // TODO actually authenticate
- return true;
+ public boolean authenticate(String username, final PublicKey suppliedKey,
+ final ServerSession session) {
+ final SshSession sd = session.getAttribute(SshSession.KEY);
+
+ username = username.toLowerCase(Locale.US);
+ try {
+ List<PublicKey> keys = sshKeyCache.get(username);
+ if (keys == null || keys.isEmpty()) {
+ sd.authenticationError(username, "no-matching-key");
+ return false;
+ }
+ for (PublicKey key : keys) {
+ if (key.equals(suppliedKey)) {
+ return validate(username, sd);
+ }
+ }
+ 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");
+ return false;
}
}
--
Gitblit v1.9.1