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/********************************************************************************
* Copyright (c) 2013 MontaVista Software, Inc and Others.
* 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:
* Anna Dushistova (MontaVista) - initial API and implementation
* Lianhao Lu (Intel) - Modified to add other file operations.
* Ioana Grigoropol (Intel) - Separated remote functionality
********************************************************************************/
package org.yocto.remote.utils;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.osgi.util.NLS;
import org.eclipse.rse.core.IRSECoreStatusCodes;
import org.eclipse.rse.core.IRSESystemType;
import org.eclipse.rse.core.RSECorePlugin;
import org.eclipse.rse.core.model.IHost;
import org.eclipse.rse.core.model.ISubSystemConfigurationCategories;
import org.eclipse.rse.core.model.ISystemRegistry;
import org.eclipse.rse.core.subsystems.ISubSystem;
import org.eclipse.rse.services.IService;
import org.eclipse.rse.services.files.IFileService;
import org.eclipse.rse.services.shells.HostShellProcessAdapter;
import org.eclipse.rse.services.shells.IHostShell;
import org.eclipse.rse.services.shells.IShellService;
import org.eclipse.rse.subsystems.files.core.servicesubsystem.IFileServiceSubSystem;
import org.eclipse.rse.subsystems.shells.core.subsystems.servicesubsystem.IShellServiceSubSystem;
import org.eclipse.rse.subsystems.terminals.core.ITerminalServiceSubSystem;
public class RSEHelper {
private final static String EXIT_CMD = "exit"; //$NON-NLS-1$
private final static String CMD_DELIMITER = ";"; //$NON-NLS-1$
public static IHost getRemoteConnectionByName(String remoteConnection) {
if (remoteConnection == null)
return null;
IHost[] connections = RSECorePlugin.getTheSystemRegistry().getHosts();
for (int i = 0; i < connections.length; i++)
if (connections[i].getAliasName().equals(remoteConnection))
return connections[i];
return null; // TODO Connection is not found in the list--need to react
// somehow, throw the exception?
}
public static IService getConnectedRemoteFileService(
IHost currentConnection, IProgressMonitor monitor) throws Exception {
final ISubSystem subsystem = getFileSubsystem(currentConnection);
if (subsystem == null)
throw new Exception(Messages.ErrorNoSubsystem);
try {
subsystem.connect(monitor, false);
} catch (CoreException e) {
throw e;
} catch (OperationCanceledException e) {
throw new CoreException(Status.CANCEL_STATUS);
}
if (!subsystem.isConnected())
throw new Exception(Messages.ErrorConnectSubsystem);
return ((IFileServiceSubSystem) subsystem).getFileService();
}
public static ISubSystem getFileSubsystem(IHost host) {
if (host == null)
return null;
ISubSystem[] subSystems = host.getSubSystems();
for (int i = 0; i < subSystems.length; i++) {
if (subSystems[i] instanceof IFileServiceSubSystem)
return subSystems[i];
}
return null;
}
public static IService getConnectedShellService(
IHost currentConnection, IProgressMonitor monitor) throws Exception {
final ISubSystem subsystem = getShellSubsystem(currentConnection);
if (subsystem == null)
throw new Exception(Messages.ErrorNoSubsystem);
try {
subsystem.connect(monitor, false);
} catch (CoreException e) {
throw e;
} catch (OperationCanceledException e) {
throw new CoreException(Status.CANCEL_STATUS);
}
if (!subsystem.isConnected())
throw new Exception(Messages.ErrorConnectSubsystem);
return ((IShellServiceSubSystem) subsystem).getShellService();
}
public static ISubSystem getShellSubsystem(IHost host) {
if (host == null)
return null;
ISubSystem[] subSystems = host.getSubSystems();
for (int i = 0; i < subSystems.length; i++) {
if (subSystems[i] instanceof IShellServiceSubSystem)
return subSystems[i];
}
return null;
}
public static IHost[] getSuitableConnections() {
//we only get RSE connections with files&cmds subsystem
ArrayList <IHost> filConnections = new ArrayList <IHost>(Arrays.asList(RSECorePlugin.getTheSystemRegistry()
.getHostsBySubSystemConfigurationCategory(ISubSystemConfigurationCategories.SUBSYSTEM_CATEGORY_FILES))); //$NON-NLS-1$
ArrayList <IHost> terminalConnections = new ArrayList <IHost>(Arrays.asList(RSECorePlugin.getTheSystemRegistry()
.getHostsBySubSystemConfigurationCategory("terminal")));//$NON-NLS-1$
ArrayList <IHost> shellConnections = new ArrayList <IHost>(Arrays.asList(RSECorePlugin.getTheSystemRegistry()
.getHostsBySubSystemConfigurationCategory("shells"))); //$NON-NLS-1$
Iterator <IHost>iter = filConnections.iterator();
while(iter.hasNext()){
IHost fileConnection = iter.next();
if(!terminalConnections.contains(fileConnection) && !shellConnections.contains(fileConnection)){
iter.remove();
}
IRSESystemType sysType = fileConnection.getSystemType();
if (sysType == null || !sysType.isEnabled()) {
iter.remove();
}
}
return filConnections.toArray(new IHost[filConnections.size()]);
}
public static void putRemoteFileInPlugin(IHost connection, String locaPathInPlugin, String remoteExePath,
IProgressMonitor monitor) throws Exception {
assert(connection != null);
monitor.beginTask(Messages.InfoUpload, 100);
IFileService fileService;
try {
fileService = (IFileService) getConnectedRemoteFileService(
connection,
new SubProgressMonitor(monitor, 5));
InputStream inputStream = FileLocator.openStream(
Activator.getDefault().getBundle(), new Path(locaPathInPlugin), false);
Path remotePath = new Path(remoteExePath);
//TODO workaround for now
//in case the underlying scp file service doesn't support inputStream upload
BufferedInputStream bis = new BufferedInputStream(inputStream);
File tempFile = File.createTempFile("scp", "temp"); //$NON-NLS-1$ //$NON-NLS-2$
FileOutputStream os = new FileOutputStream(tempFile);
BufferedOutputStream bos = new BufferedOutputStream(os);
byte[] buffer = new byte[1024];
int readCount;
while( (readCount = bis.read(buffer)) > 0)
{
bos.write(buffer, 0, readCount);
}
bos.close();
fileService.upload(tempFile, remotePath.removeLastSegments(1)
.toString(), remotePath.lastSegment(), true, null, null,
new SubProgressMonitor(monitor, 80));
// Need to change the permissions to match the original file
// permissions because of a bug in upload
remoteShellExec(
connection,
"", "chmod", "+x " + spaceEscapify(remotePath.toString()), new SubProgressMonitor(monitor, 5)); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
} finally {
monitor.done();
}
return;
}
public static void getRemoteFile(IHost connection, String localExePath, String remoteExePath,
IProgressMonitor monitor) throws Exception {
assert(connection!=null);
monitor.beginTask(Messages.InfoDownload, 100);
IFileService fileService;
try {
fileService = (IFileService) getConnectedRemoteFileService(
connection,
new SubProgressMonitor(monitor, 10));
File file = new File(localExePath);
file.deleteOnExit();
monitor.worked(5);
Path remotePath = new Path(remoteExePath);
fileService.download(remotePath.removeLastSegments(1).toString(),
remotePath.lastSegment(),file,true, null,
new SubProgressMonitor(monitor, 85));
// Need to change the permissions to match the original file
// permissions because of a bug in upload
//RemoteApplication p = remoteShellExec(
// config,
// "", "chmod", "+x " + spaceEscapify(remotePath.toString()), new SubProgressMonitor(monitor, 5)); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
//Thread.sleep(500);
//p.destroy();
} finally {
monitor.done();
}
return;
}
public static ITerminalServiceSubSystem getTerminalSubSystem(
IHost connection) {
ISystemRegistry systemRegistry = RSECorePlugin.getTheSystemRegistry();
ISubSystem[] subsystems = systemRegistry.getSubSystems(connection);
for (int i = 0; i < subsystems.length; i++) {
if (subsystems[i] instanceof ITerminalServiceSubSystem) {
ITerminalServiceSubSystem subSystem = (ITerminalServiceSubSystem) subsystems[i];
return subSystem;
}
}
return null;
}
public static String spaceEscapify(String inputString) {
if (inputString == null)
return null;
return inputString.replaceAll(" ", "\\\\ "); //$NON-NLS-1$ //$NON-NLS-2$
}
public static Process remoteShellExec(IHost connection,
String prelaunchCmd, String remoteCommandPath, String arguments,
IProgressMonitor monitor) throws CoreException {
monitor.beginTask(NLS.bind(Messages.RemoteShellExec_1,
remoteCommandPath, arguments), 10);
String realRemoteCommand = arguments == null ? spaceEscapify(remoteCommandPath)
: spaceEscapify(remoteCommandPath) + " " + arguments; //$NON-NLS-1$
String remoteCommand = realRemoteCommand + CMD_DELIMITER + EXIT_CMD;
if(prelaunchCmd != null) {
if (!prelaunchCmd.trim().equals("")) //$NON-NLS-1$
remoteCommand = prelaunchCmd + CMD_DELIMITER + remoteCommand;
}
IShellService shellService;
Process p = null;
try {
shellService = (IShellService) getConnectedShellService(
connection,
new SubProgressMonitor(monitor, 7));
// This is necessary because runCommand does not actually run the
// command right now.
String env[] = new String[0];
try {
IHostShell hostShell = shellService.launchShell(
"", env, new SubProgressMonitor(monitor, 3)); //$NON-NLS-1$
hostShell.writeToShell(remoteCommand);
p = new HostShellProcessAdapter(hostShell);
} catch (Exception e) {
if (p != null) {
p.destroy();
}
abort(Messages.RemoteShellExec_2, e,
IRSECoreStatusCodes.EXCEPTION_OCCURRED);
}
} catch (Exception e1) {
abort(e1.getMessage(), e1,
IRSECoreStatusCodes.EXCEPTION_OCCURRED);
}
monitor.done();
return p;
}
/**
* Throws a core exception with an error status object built from the given
* message, lower level exception, and error code.
*
* @param message
* the status message
* @param exception
* lower level exception associated with the error, or
* <code>null</code> if none
* @param code
* error code
*/
public static void abort(String message, Throwable exception, int code) throws CoreException {
IStatus status;
if (exception != null) {
MultiStatus multiStatus = new MultiStatus(Activator.PLUGIN_ID, code, message, exception);
multiStatus.add(new Status(IStatus.ERROR, Activator.PLUGIN_ID, code, exception.getLocalizedMessage(), exception));
status = multiStatus;
} else {
status = new Status(IStatus.ERROR, Activator.PLUGIN_ID, code, message, null);
}
throw new CoreException(status);
}
/**
* Checks whether a IHost associated system's is enabled and not a local one
* @param host
* @return
*/
public static boolean isHostViable(IHost host) {
IRSESystemType sysType = host.getSystemType();
if (sysType != null && sysType.isEnabled() && !sysType.isLocal())
return true;
return false;
}
/**
* Ensures that RSECorePlugin is initialized before performing any actions
*/
public static void waitForRSEInitCompletition() {
if (!RSECorePlugin.isInitComplete(RSECorePlugin.INIT_MODEL))
try {
RSECorePlugin.waitForInitCompletion(RSECorePlugin.INIT_MODEL);
} catch (InterruptedException e) {
return;
}
}
}
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