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Jsch overrides the port in the URI with the one in ~/.ssh/config

Jsch unconditionally overwrites the port from the ssh config
file (if a port is specified there), even if the URI explicitly does
give a different port.

Fix this, and add tests.

Change-Id: I7b014543c7ece26270e366db39d7647f82d64f0d
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
stable-4.9
Thomas Wolf 7 years ago
parent
commit
891103609d
  1. 4
      org.eclipse.jgit.test/tests.bzl
  2. 216
      org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/JschConfigSessionFactoryTest.java
  3. 17
      org.eclipse.jgit/src/org/eclipse/jgit/transport/JschConfigSessionFactory.java

4
org.eclipse.jgit.test/tests.bzl

@ -33,6 +33,10 @@ def tests(tests):
additional_deps = [ additional_deps = [
'//lib:jsch', '//lib:jsch',
] ]
if src.endswith("JschConfigSessionFactoryTest.java"):
additional_deps = [
'//lib:jsch',
]
junit_tests( junit_tests(
name = name, name = name,

216
org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/JschConfigSessionFactoryTest.java

@ -0,0 +1,216 @@
/*
* Copyright (C) 2018, Thomas Wolf <thomas.wolf@paranor.ch>
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.eclipse.jgit.transport;
import static org.junit.Assert.assertEquals;
import java.io.File;
import java.nio.file.Files;
import java.util.Arrays;
import java.util.concurrent.TimeUnit;
import org.eclipse.jgit.util.FS;
import org.junit.After;
import org.junit.Test;
import com.jcraft.jsch.Session;
/**
* Tests for correctly interpreting ssh config values when Jsch sessions are
* used.
*/
public class JschConfigSessionFactoryTest {
File tmpConfigFile;
OpenSshConfig tmpConfig;
DefaultSshSessionFactory factory = new DefaultSshSessionFactory();
@After
public void removeTmpConfig() {
if (tmpConfigFile == null) {
return;
}
if (tmpConfigFile.exists() && !tmpConfigFile.delete()) {
tmpConfigFile.deleteOnExit();
}
tmpConfigFile = null;
}
@Test
public void testNoConfigEntry() throws Exception {
tmpConfigFile = File.createTempFile("jsch", "test");
tmpConfig = new OpenSshConfig(tmpConfigFile.getParentFile(),
tmpConfigFile);
factory.setConfig(tmpConfig);
Session session = createSession("ssh://egit/egit/egit");
assertEquals("egit", session.getHost());
// No user in URI, none in ssh config: default is OS user name
assertEquals(System.getProperty("user.name"), session.getUserName());
assertEquals(22, session.getPort());
}
@Test
public void testAlias() throws Exception {
tmpConfigFile = createConfig("Host egit", "Hostname git.eclipse.org",
"User foo", "Port 29418");
tmpConfig = new OpenSshConfig(tmpConfigFile.getParentFile(),
tmpConfigFile);
factory.setConfig(tmpConfig);
Session session = createSession("ssh://egit/egit/egit");
assertEquals("git.eclipse.org", session.getHost());
assertEquals("foo", session.getUserName());
assertEquals(29418, session.getPort());
}
@Test
public void testAliasWithUser() throws Exception {
tmpConfigFile = createConfig("Host egit", "Hostname git.eclipse.org",
"User foo", "Port 29418");
tmpConfig = new OpenSshConfig(tmpConfigFile.getParentFile(),
tmpConfigFile);
factory.setConfig(tmpConfig);
Session session = createSession("ssh://bar@egit/egit/egit");
assertEquals("git.eclipse.org", session.getHost());
assertEquals("bar", session.getUserName());
assertEquals(29418, session.getPort());
}
@Test
public void testAliasWithPort() throws Exception {
tmpConfigFile = createConfig("Host egit", "Hostname git.eclipse.org",
"User foo", "Port 29418");
tmpConfig = new OpenSshConfig(tmpConfigFile.getParentFile(),
tmpConfigFile);
factory.setConfig(tmpConfig);
Session session = createSession("ssh://bar@egit:22/egit/egit");
assertEquals("git.eclipse.org", session.getHost());
assertEquals("bar", session.getUserName());
assertEquals(22, session.getPort());
}
@Test
public void testAliasIdentical() throws Exception {
tmpConfigFile = createConfig("Host git.eclipse.org",
"Hostname git.eclipse.org", "User foo", "Port 29418");
tmpConfig = new OpenSshConfig(tmpConfigFile.getParentFile(),
tmpConfigFile);
factory.setConfig(tmpConfig);
Session session = createSession("ssh://git.eclipse.org/egit/egit");
assertEquals("git.eclipse.org", session.getHost());
assertEquals("foo", session.getUserName());
assertEquals(29418, session.getPort());
}
@Test
public void testAliasIdenticalWithUser() throws Exception {
tmpConfigFile = createConfig("Host git.eclipse.org",
"Hostname git.eclipse.org", "User foo", "Port 29418");
tmpConfig = new OpenSshConfig(tmpConfigFile.getParentFile(),
tmpConfigFile);
factory.setConfig(tmpConfig);
Session session = createSession("ssh://bar@git.eclipse.org/egit/egit");
assertEquals("git.eclipse.org", session.getHost());
assertEquals("bar", session.getUserName());
assertEquals(29418, session.getPort());
}
@Test
public void testAliasIdenticalWithPort() throws Exception {
tmpConfigFile = createConfig("Host git.eclipse.org",
"Hostname git.eclipse.org", "User foo", "Port 29418");
tmpConfig = new OpenSshConfig(tmpConfigFile.getParentFile(),
tmpConfigFile);
factory.setConfig(tmpConfig);
Session session = createSession(
"ssh://bar@git.eclipse.org:300/egit/egit");
assertEquals("git.eclipse.org", session.getHost());
assertEquals("bar", session.getUserName());
assertEquals(300, session.getPort());
}
@Test
public void testConnectTimout() throws Exception {
tmpConfigFile = createConfig("Host git.eclipse.org",
"Hostname git.eclipse.org", "User foo", "Port 29418",
"ConnectTimeout 10");
tmpConfig = new OpenSshConfig(tmpConfigFile.getParentFile(),
tmpConfigFile);
factory.setConfig(tmpConfig);
Session session = createSession("ssh://git.eclipse.org/something");
assertEquals("git.eclipse.org", session.getHost());
assertEquals("foo", session.getUserName());
assertEquals(29418, session.getPort());
assertEquals(TimeUnit.SECONDS.toMillis(10), session.getTimeout());
}
private File createConfig(String... lines) throws Exception {
File f = File.createTempFile("jsch", "test");
Files.write(f.toPath(), Arrays.asList(lines));
return f;
}
private Session createSession(String uriText) throws Exception {
// For this test to make sense, these few lines must correspond to the
// code in JschConfigSessionFactory.getSession(). Because of
// side-effects we cannot encapsulate that there properly and so we have
// to duplicate this bit here. We also can't test getSession() itself
// since it would try to actually connect to a server.
URIish uri = new URIish(uriText);
String host = uri.getHost();
String user = uri.getUser();
String password = uri.getPass();
int port = uri.getPort();
OpenSshConfig.Host hostConfig = tmpConfig.lookup(host);
host = hostConfig.getHostName();
if (port <= 0) {
port = hostConfig.getPort();
}
if (user == null) {
user = hostConfig.getUser();
}
return factory.createSession(null, FS.DETECTED, user, password, host,
port, hostConfig);
}
}

17
org.eclipse.jgit/src/org/eclipse/jgit/transport/JschConfigSessionFactory.java

@ -193,13 +193,18 @@ public abstract class JschConfigSessionFactory extends SshSessionFactory {
return e.getCause() == null && e.getMessage().equals("Auth cancel"); //$NON-NLS-1$ return e.getCause() == null && e.getMessage().equals("Auth cancel"); //$NON-NLS-1$
} }
private Session createSession(CredentialsProvider credentialsProvider, // Package visibility for tests
Session createSession(CredentialsProvider credentialsProvider,
FS fs, String user, final String pass, String host, int port, FS fs, String user, final String pass, String host, int port,
final OpenSshConfig.Host hc) throws JSchException { final OpenSshConfig.Host hc) throws JSchException {
final Session session = createSession(hc, user, host, port, fs); final Session session = createSession(hc, user, host, port, fs);
// Jsch will have overridden the explicit user by the one from the SSH // Jsch will have overridden the explicit user by the one from the SSH
// config file... // config file...
setUserName(session, user); setUserName(session, user);
// Jsch will also have overridden the port.
if (port > 0 && port != session.getPort()) {
session.setPort(port);
}
// We retry already in getSession() method. JSch must not retry // We retry already in getSession() method. JSch must not retry
// on its own. // on its own.
session.setConfig("MaxAuthTries", "1"); //$NON-NLS-1$ //$NON-NLS-2$ session.setConfig("MaxAuthTries", "1"); //$NON-NLS-1$ //$NON-NLS-2$
@ -477,4 +482,14 @@ public abstract class JschConfigSessionFactory extends SshSessionFactory {
} }
} }
} }
/**
* Set the {@link OpenSshConfig} to use. Intended for use in tests.
*
* @param config
* to use
*/
void setConfig(OpenSshConfig config) {
this.config = config;
}
} }

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