Migrate from com.jcraft:jsch 0.1.55 to com.github.mwiede:jsch 0.2.5

com.jcraft:jsch is not actively maintained anymore and lacks support
for modern public key algorithms such as rsa-sha2-256. It only
supports ssh-rsa which is disabled in up-to-date environments.

com.github.mwiede:jsch was created as a drop-in replacement which
works in modern environments [1].

Sources are taken from maven central [2]. The following files were
omitted, because they depend on additional 3rd-party libraries which
we do not have / do not need:

    com/jcraft/jsch/JUnixSocketFactory.java
    com/jcraft/jsch/Log4j2Logger.java
    com/jcraft/jsch/PageantConnector.java
    com/jcraft/jsch/Slf4jLogger.java
    com/jcraft/jsch/SSHAgentConnector.java
    com/jcraft/jsch/bc/*
    com/jcraft/jsch/jgss/GSSContextKrb5.java

Fixes PhilippC#1812.

[1] https://github.com/mwiede/jsch
[2] https://repo1.maven.org/maven2/com/github/mwiede/jsch/0.2.5/jsch-0.2.5-sources.jar

src/java/JavaFileStorage/app/src/main/java/com/jcraft/jsch/AgentConnector.java

@@ -0,0 +1,36 @@
+/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
+/*
+Copyright (c) 2011 ymnk, JCraft,Inc. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+  1. Redistributions of source code must retain the above copyright notice,
+     this list of conditions and the following disclaimer.
+
+  2. 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.
+
+  3. The names of the authors may not be used to endorse or promote products
+     derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 JCRAFT,
+INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE 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 com.jcraft.jsch;
+
+public interface AgentConnector {
+  String getName();
+  boolean isAvailable();
+  void query(Buffer buffer) throws AgentProxyException;
+}

src/java/JavaFileStorage/app/src/main/java/com/jcraft/jsch/AgentIdentity.java

@@ -0,0 +1,80 @@
+/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
+/*
+Copyright (c) 2011 ymnk, JCraft,Inc. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+  1. Redistributions of source code must retain the above copyright notice,
+     this list of conditions and the following disclaimer.
+
+  2. 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.
+
+  3. The names of the authors may not be used to endorse or promote products
+     derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 JCRAFT,
+INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE 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 com.jcraft.jsch;
+
+class AgentIdentity implements Identity {
+
+  private AgentProxy agent;
+  private byte[] blob;
+  private String comment;
+  private String algname;
+  AgentIdentity(AgentProxy agent, byte[] blob, String comment) {
+    this.agent = agent;
+    this.blob = blob;
+    this.comment = comment;
+    algname = Util.byte2str((new Buffer(blob)).getString());
+  }
+
+  @Override
+  public boolean setPassphrase(byte[] passphrase) throws JSchException{
+    return true;
+  }
+
+  @Override
+  public byte[] getPublicKeyBlob() { return blob; }
+
+  @Override
+  public byte[] getSignature(byte[] data){
+    return agent.sign(blob, data, null);
+  }
+
+  @Override
+  public byte[] getSignature(byte[] data, String alg){
+    return agent.sign(blob, data, alg);
+  }
+
+  @Override
+  @Deprecated
+  public boolean decrypt() {
+    throw new RuntimeException("not implemented");
+  }
+
+  @Override
+  public String getAlgName() { return algname; }
+
+  @Override
+  public String getName() { return comment; }
+
+  @Override
+  public boolean isEncrypted() { return false; }
+
+  @Override
+  public void clear() { }
+}

src/java/JavaFileStorage/app/src/main/java/com/jcraft/jsch/AgentIdentityRepository.java

@@ -0,0 +1,75 @@
+/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
+/*
+Copyright (c) 2011 ymnk, JCraft,Inc. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+  1. Redistributions of source code must retain the above copyright notice,
+     this list of conditions and the following disclaimer.
+
+  2. 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.
+
+  3. The names of the authors may not be used to endorse or promote products
+     derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 JCRAFT,
+INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE 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 com.jcraft.jsch;
+
+import java.util.Vector;
+
+public class AgentIdentityRepository implements IdentityRepository {
+
+  private AgentProxy agent;
+  public AgentIdentityRepository(AgentConnector connector) {
+    this.agent = new AgentProxy(connector);
+  }
+
+  @Override
+  public Vector<Identity> getIdentities() {
+    return agent.getIdentities();
+  }
+
+  @Override
+  public boolean add(byte[] identity) {
+    return agent.addIdentity(identity);
+  }
+
+  @Override
+  public boolean remove(byte[] blob) {
+    return agent.removeIdentity(blob);
+  }
+
+  @Override
+  public void removeAll() {
+    agent.removeAllIdentities();
+  }
+
+  @Override
+  public String getName() {
+    return agent.getConnector().getName();
+  }
+
+  @Override
+  public int getStatus() {
+    if(agent.getConnector().isAvailable()){
+      return RUNNING;
+    }
+    else {
+      return NOTRUNNING;
+    }
+  }
+}