/*
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* Copyright 2014 gitblit.com.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.gitblit.tests;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.OutputStreamWriter;
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import java.io.Writer;
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import java.net.SocketAddress;
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import java.security.KeyPair;
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import java.security.KeyPairGenerator;
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import java.security.PublicKey;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.concurrent.atomic.AtomicBoolean;
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import org.apache.sshd.ClientChannel;
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import org.apache.sshd.ClientSession;
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import org.apache.sshd.SshClient;
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import org.apache.sshd.client.ServerKeyVerifier;
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import org.apache.sshd.common.NamedFactory;
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import org.apache.sshd.common.util.SecurityUtils;
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import org.apache.sshd.client.UserAuth;
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import org.apache.sshd.client.auth.UserAuthPublicKey;
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import org.junit.After;
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import org.junit.AfterClass;
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import org.junit.Before;
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import org.junit.BeforeClass;
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import com.gitblit.Constants.AccessPermission;
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import com.gitblit.transport.ssh.IPublicKeyManager;
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import com.gitblit.transport.ssh.MemoryKeyManager;
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import com.gitblit.transport.ssh.SshKey;
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/**
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* Base class for SSH unit tests.
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*/
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public abstract class SshUnitTest extends GitblitUnitTest {
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protected static final AtomicBoolean started = new AtomicBoolean(false);
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protected static KeyPairGenerator generator;
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protected KeyPair rwKeyPair;
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protected KeyPair roKeyPair;
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protected String username = "admin";
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protected String password = "admin";
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@BeforeClass
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public static void startGitblit() throws Exception {
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generator = SecurityUtils.getKeyPairGenerator("RSA");
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started.set(GitBlitSuite.startGitblit());
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}
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@AfterClass
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public static void stopGitblit() throws Exception {
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if (started.get()) {
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GitBlitSuite.stopGitblit();
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}
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}
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protected MemoryKeyManager getKeyManager() {
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IPublicKeyManager mgr = gitblit().getPublicKeyManager();
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if (mgr instanceof MemoryKeyManager) {
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return (MemoryKeyManager) gitblit().getPublicKeyManager();
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} else {
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throw new RuntimeException("unexpected key manager type " + mgr.getClass().getName());
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}
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}
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@Before
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public void prepare() {
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rwKeyPair = generator.generateKeyPair();
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MemoryKeyManager keyMgr = getKeyManager();
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keyMgr.addKey(username, new SshKey(rwKeyPair.getPublic()));
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roKeyPair = generator.generateKeyPair();
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SshKey sshKey = new SshKey(roKeyPair.getPublic());
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sshKey.setPermission(AccessPermission.CLONE);
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keyMgr.addKey(username, sshKey);
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}
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@After
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public void tearDown() {
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MemoryKeyManager keyMgr = getKeyManager();
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keyMgr.removeAllKeys(username);
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}
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protected SshClient getClient() {
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SshClient client = SshClient.setUpDefaultClient();
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client.setServerKeyVerifier(new ServerKeyVerifier() {
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@Override
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public boolean verifyServerKey(ClientSession sshClientSession, SocketAddress remoteAddress, PublicKey serverKey) {
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return true;
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}
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});
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List<NamedFactory<UserAuth>> userAuthFactories = new ArrayList<>();
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userAuthFactories.add(new UserAuthPublicKey.Factory());
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client.setUserAuthFactories(userAuthFactories);
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client.start();
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return client;
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}
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protected String testSshCommand(String cmd) throws IOException, InterruptedException {
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return testSshCommand(cmd, null);
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}
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protected String testSshCommand(String cmd, String stdin) throws IOException, InterruptedException {
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SshClient client = getClient();
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ClientSession session = client.connect(username, "localhost", GitBlitSuite.sshPort).await().getSession();
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session.addPublicKeyIdentity(rwKeyPair);
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assertTrue(session.auth().await().isSuccess());
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ClientChannel channel = session.createChannel(ClientChannel.CHANNEL_EXEC, cmd);
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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if (stdin != null) {
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Writer w = new OutputStreamWriter(baos);
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w.write(stdin);
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w.close();
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}
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channel.setIn(new ByteArrayInputStream(baos.toByteArray()));
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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ByteArrayOutputStream err = new ByteArrayOutputStream();
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channel.setOut(out);
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channel.setErr(err);
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channel.open();
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channel.waitFor(ClientChannel.CLOSED, 0);
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String result = out.toString().trim();
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channel.close(false);
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client.stop();
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return result;
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}
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}
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