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/*******************************************************************************
* Copyright (c) 2006 IBM Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.systemtap.ui.consolelog;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.eclipse.linuxtools.systemtap.ui.consolelog.structures.RemoteScriptOptions;
import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelExec;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;
public class ScpClient {
private Session session;
/**
* @since 3.0
*/
public ScpClient(RemoteScriptOptions remoteOptions) throws JSchException {
JSch jsch = new JSch();
session = jsch.getSession(remoteOptions.userName, remoteOptions.hostName, 22);
session.setPassword(remoteOptions.password);
java.util.Properties config = new java.util.Properties();
config.put("StrictHostKeyChecking", "no"); //$NON-NLS-1$ //$NON-NLS-2$
session.setConfig(config);
session.connect();
}
public void transfer(String fromFile, String toFile) throws IOException,
JSchException {
String rfile = toFile;
String lfile = fromFile;
String command = "scp -t " + rfile; //$NON-NLS-1$
Channel channel = session.openChannel("exec"); //$NON-NLS-1$
((ChannelExec) channel).setCommand(command);
// get I/O streams for remote scp
try (OutputStream out = channel.getOutputStream();
InputStream in = channel.getInputStream()) {
channel.connect();
if (checkAck(in) != 0) {
System.out.println("err"); //$NON-NLS-1$
}
// send "C0644 filesize filename", where filename should not include
// '/'
long filesize = (new File(lfile)).length();
command = "C0644 " + filesize + " "; //$NON-NLS-1$ //$NON-NLS-2$
if (lfile.lastIndexOf('/') > 0) {
command += lfile.substring(lfile.lastIndexOf('/') + 1);
} else {
command += lfile;
}
command += "\n"; //$NON-NLS-1$
out.write(command.getBytes());
out.flush();
if (checkAck(in) != 0) {
System.out.println("err"); //$NON-NLS-1$
}
// send a content of lfile
byte[] buf = new byte[1024];
try (FileInputStream fis = new FileInputStream(lfile)) {
while (true) {
int len = fis.read(buf, 0, buf.length);
if (len <= 0) {
break;
}
out.write(buf, 0, len);
}
}
// send '\0'
buf[0] = 0;
out.write(buf, 0, 1);
out.flush();
if (checkAck(in) != 0) {
System.out.println("err"); //$NON-NLS-1$
}
}
channel.disconnect();
session.disconnect();
}
private static int checkAck(InputStream in) throws IOException {
int b = in.read();
// b may be 0 for success,
// 1 for error,
// 2 for fatal error,
// -1
if (b == 0) {
return b;
}
if (b == -1) {
return b;
}
if (b == 1 || b == 2) {
StringBuilder sb = new StringBuilder();
int c;
do {
c = in.read();
sb.append((char) c);
} while (c != '\n');
}
return b;
}
}
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