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// Copyright (C) 2013 Goldman Sachs
//
// 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
//
// 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.
package com.google.gerrit.sshd;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.server.IdentifiedUser;
import com.google.gerrit.server.IdentifiedUser.GenericFactory;
import com.google.gerrit.server.account.AccountCache;
import com.google.gerrit.server.account.AccountState;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import org.apache.sshd.server.auth.gss.GSSAuthenticator;
import org.apache.sshd.server.session.ServerSession;
/**
* Authenticates users with kerberos (gssapi-with-mic).
*/
@Singleton
class GerritGSSAuthenticator extends GSSAuthenticator {
private final AccountCache accounts;
private final SshScope sshScope;
private final SshLog sshLog;
private final GenericFactory userFactory;
@Inject
GerritGSSAuthenticator(final AccountCache accounts, final SshScope sshScope,
final SshLog sshLog, final IdentifiedUser.GenericFactory userFactory) {
this.accounts = accounts;
this.sshScope = sshScope;
this.sshLog = sshLog;
this.userFactory = userFactory;
}
@Override
public boolean validateIdentity(final ServerSession session,
final String identity) {
final SshSession sd = session.getAttribute(SshSession.KEY);
int at = identity.indexOf('@');
String username;
if (at == -1) {
username = identity;
} else {
username = identity.substring(0, at);
}
AccountState state = accounts.getByUsername(username);
Account account = state == null ? null : state.getAccount();
boolean active = account != null && account.isActive();
if (active) {
return SshUtil.success(username, session, sshScope, sshLog, sd,
SshUtil.createUser(sd, userFactory, account.getId()));
} else {
return false;
}
}
}
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