001package org.apache.maven.wagon.providers.ssh.knownhost;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 *
012 *   http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import org.apache.maven.wagon.Wagon;
023import org.apache.maven.wagon.providers.ssh.SshWagon;
024import org.apache.maven.wagon.providers.ssh.TestData;
025import org.apache.maven.wagon.repository.Repository;
026import org.codehaus.plexus.PlexusTestCase;
027
028/**
029 * 
030 */
031public class KnownHostsProviderTestCase
032    extends PlexusTestCase
033{
034    protected KnownHostsProvider okHostsProvider;
035
036    protected KnownHostsProvider failHostsProvider;
037
038    protected KnownHostsProvider changedHostsProvider;
039
040    private SshWagon wagon;
041
042    private Repository source;
043
044    private static final String CORRECT_KEY = TestData.getHostKey();
045
046    private static final String CHANGED_KEY =
047        "AAAAB3NzaC1yc2EAAAABIwAAAQEA8VLKkfHl2CNqW+m0603z07dyweWzzdVGQlMPUX4z1264E7M/h+6lPKiOo+u49CL7eQVA+FtW"
048        + "TZoJ3oBAMABcKnHx41TnSpQUkbdR6rzyC6IG1lXiVtEjG2w7DUnxpCtVo5PaQuJobwoXv5NNL3vx03THPgcDJquLPWvGnDWhnXoEh"
049        + "3/6c7rprwT+PrjZ6LIT35ZCUGajoehhF151oNbFMQHllfR6EAiZIP0z0nIVI+Jiv6g+XZapumVPVYjdOfxvLKQope1H9HJamT3bDI"
050        + "m8mkebUB10DzQJYxFt4/0wiNH3L4jsIFn+CiW1/IQm5yyff1CUO87OqVbtp9BlaXZNmw==";
051
052    /**
053     * tests what happens if the remote host has a different key than the one
054     * we expect
055     *
056     * @throws Exception on error
057     */
058    public void testIncorrectKey()
059        throws Exception
060    {
061        wagon.setKnownHostsProvider( failHostsProvider );
062
063        try
064        {
065            wagon.connect( source );
066
067            fail( "Should not have successfully connected - host is not known" );
068        }
069        catch ( UnknownHostException e )
070        {
071            // ok
072        }
073    }
074
075    /**
076     * tests what happens if the remote host has changed since being recorded.
077     *
078     * @throws Exception on error
079     */
080    public void testChangedKey()
081        throws Exception
082    {
083        wagon.setKnownHostsProvider( changedHostsProvider );
084
085        try
086        {
087            wagon.connect( source );
088
089            fail( "Should not have successfully connected - host is changed" );
090        }
091        catch ( KnownHostChangedException e )
092        {
093            // ok
094        }
095    }
096
097    /**
098     * tests what happens if the remote host has the expected key
099     *
100     * @throws Exception on error
101     */
102    public void testCorrectKey()
103        throws Exception
104    {
105        wagon.setKnownHostsProvider( okHostsProvider );
106
107        wagon.connect( source );
108
109        assertTrue( true );
110    }
111
112    protected void setUp()
113        throws Exception
114    {
115        super.setUp();
116        source =
117            new Repository( "test", "scp://" + TestData.getUserName() + "@" + TestData.getHostname() + "/tmp/foo" );
118
119        wagon = (SshWagon) lookup( Wagon.ROLE, "scp" );
120        wagon.setInteractive( false );
121
122        this.okHostsProvider = new SingleKnownHostProvider( TestData.getHostname(), CORRECT_KEY );
123        this.failHostsProvider = new SingleKnownHostProvider( "beaver.codehaus.org", CORRECT_KEY );
124        this.changedHostsProvider = new SingleKnownHostProvider( TestData.getHostname(), CHANGED_KEY );
125    }
126}