/*
* 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
*
* 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.gitblit.tests;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.net.SocketAddress;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.PublicKey;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.sshd.ClientChannel;
import org.apache.sshd.ClientSession;
import org.apache.sshd.SshClient;
import org.apache.sshd.client.ServerKeyVerifier;
import org.apache.sshd.common.util.SecurityUtils;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import com.gitblit.Constants.AccessPermission;
import com.gitblit.transport.ssh.IPublicKeyManager;
import com.gitblit.transport.ssh.MemoryKeyManager;
import com.gitblit.transport.ssh.SshKey;
/**
* Base class for SSH unit tests.
*/
public abstract class SshUnitTest extends GitblitUnitTest {
protected static final AtomicBoolean started = new AtomicBoolean(false);
protected static KeyPairGenerator generator;
protected KeyPair rwKeyPair;
protected KeyPair roKeyPair;
protected String username = "admin";
protected String password = "admin";
@BeforeClass
public static void startGitblit() throws Exception {
generator = SecurityUtils.getKeyPairGenerator("RSA");
started.set(GitBlitSuite.startGitblit());
}
@AfterClass
public static void stopGitblit() throws Exception {
if (started.get()) {
GitBlitSuite.stopGitblit();
}
}
protected MemoryKeyManager getKeyManager() {
IPublicKeyManager mgr = gitblit().getPublicKeyManager();
if (mgr instanceof MemoryKeyManager) {
return (MemoryKeyManager) gitblit().getPublicKeyManager();
} else {
throw new RuntimeException("unexpected key manager type " + mgr.getClass().getName());
}
}
@Before
public void prepare() {
rwKeyPair = generator.generateKeyPair();
MemoryKeyManager keyMgr = getKeyManager();
keyMgr.addKey(username, new SshKey(rwKeyPair.getPublic()));
roKeyPair = generator.generateKeyPair();
SshKey sshKey = new SshKey(roKeyPair.getPublic());
sshKey.setPermission(AccessPermission.CLONE);
keyMgr.addKey(username, sshKey);
}
@After
public void tearDown() {
MemoryKeyManager keyMgr = getKeyManager();
keyMgr.removeAllKeys(username);
}
protected SshClient getClient() {
SshClient client = SshClient.setUpDefaultClient();
client.setServerKeyVerifier(new ServerKeyVerifier() {
@Override
public boolean verifyServerKey(ClientSession sshClientSession, SocketAddress remoteAddress, PublicKey serverKey) {
return true;
}
});
client.start();
return client;
}
protected String testSshCommand(String cmd) throws IOException, InterruptedException {
return testSshCommand(cmd, null);
}
protected String testSshCommand(String cmd, String stdin) throws IOException, InterruptedException {
SshClient client = getClient();
ClientSession session = client.connect(username, "localhost", GitBlitSuite.sshPort).await().getSession();
session.addPublicKeyIdentity(rwKeyPair);
assertTrue(session.auth().await().isSuccess());
ClientChannel channel = session.createChannel(ClientChannel.CHANNEL_EXEC, cmd);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
if (stdin != null) {
Writer w = new OutputStreamWriter(baos);
w.write(stdin);
w.close();
}
channel.setIn(new ByteArrayInputStream(baos.toByteArray()));
ByteArrayOutputStream out = new ByteArrayOutputStream();
ByteArrayOutputStream err = new ByteArrayOutputStream();
channel.setOut(out);
channel.setErr(err);
channel.open();
channel.waitFor(ClientChannel.CLOSED, 0);
String result = out.toString().trim();
channel.close(false);
client.stop();
return result;
}
}