| /******************************************************************************* |
| * Copyright (c) 2008, 2019 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Red Hat Incorporated - initial API and implementation |
| * IBM Corporation - ongoing development |
| * Cloudsmith Inc - ongoing development |
| * Landmark Graphics Corporation - bug 397183 |
| * SAP SE - bug 465602 |
| *******************************************************************************/ |
| package org.eclipse.equinox.internal.p2.touchpoint.natives.actions; |
| |
| import java.io.*; |
| import java.util.ArrayList; |
| import java.util.Map; |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.equinox.internal.p2.touchpoint.natives.*; |
| import org.eclipse.equinox.p2.engine.spi.ProvisioningAction; |
| import org.eclipse.osgi.util.NLS; |
| |
| public class ChmodAction extends ProvisioningAction { |
| private static final String ACTION_CHMOD = "chmod"; //$NON-NLS-1$ |
| private static final boolean WINDOWS = java.io.File.separatorChar == '\\'; |
| |
| /** |
| * {@inheritDoc} |
| * |
| * <p> |
| * Changes the file permission attributes. This is not applicable on Windows so |
| * it is a no-op in that case. |
| * </p> |
| * |
| * <table> |
| * <tr> |
| * <td>target</td> |
| * <td>targetFile</td> |
| * <td>absoluteFiles</td> |
| * <td>validity</td> |
| * </tr> |
| * <tr> |
| * <td>Y</td> |
| * <td>Y</td> |
| * <td>Y</td> |
| * <td>can't set all these arguments</td> |
| * </tr> |
| * <tr> |
| * <td>Y</td> |
| * <td>Y</td> |
| * <td>N</td> |
| * <td>Y today, add the ability to specify a list of fileNames</td> |
| * </tr> |
| * <tr> |
| * <td>Y</td> |
| * <td>N</td> |
| * <td>Y</td> |
| * <td>warning? targetFolder unnecessary</td> |
| * </tr> |
| * <tr> |
| * <td>Y</td> |
| * <td>N</td> |
| * <td>N</td> |
| * <td>incorrect, missing targetFile</td> |
| * </tr> |
| * <tr> |
| * <td>N</td> |
| * <td>Y</td> |
| * <td>Y</td> |
| * <td>incorrect, target file can't be with absoluteFiles</td> |
| * </tr> |
| * <tr> |
| * <td>N</td> |
| * <td>Y</td> |
| * <td>N</td> |
| * <td>incorrect, missing the targetFolder</td> |
| * </tr> |
| * <tr> |
| * <td>N</td> |
| * <td>N</td> |
| * <td>Y</td> |
| * <td>Y</td> |
| * </tr> |
| * <tr> |
| * <td>N</td> |
| * <td>N</td> |
| * <td>N</td> |
| * <td>N</td> |
| * </tr> |
| * </table> |
| */ |
| @Override |
| public IStatus execute(Map<String, Object> parameters) { |
| // on Windows this isn't implemented, so we can return right here. |
| if (WINDOWS) |
| return Status.OK_STATUS; |
| Object absoluteFiles = parameters.get(ActionConstants.PARM_ABSOLUTE_FILES); // String or String[] |
| String targetDir = (String) parameters.get(ActionConstants.PARM_TARGET_DIR); |
| String targetFile = (String) parameters.get(ActionConstants.PARM_TARGET_FILE); |
| |
| if (targetFile != null && absoluteFiles != null) |
| return Util.createError(Messages.chmod_param_cant_be_set_together); |
| |
| if (targetDir != null && targetFile == null) |
| return Util.createError(NLS.bind(Messages.param_not_set, ActionConstants.PARM_TARGET_FILE, ACTION_CHMOD)); |
| |
| if (targetDir == null && targetFile != null) |
| return Util.createError(NLS.bind(Messages.param_not_set, ActionConstants.PARM_TARGET_DIR, ACTION_CHMOD)); |
| |
| String permissions = (String) parameters.get(ActionConstants.PARM_PERMISSIONS); |
| if (permissions == null) |
| return Util.createError(NLS.bind(Messages.param_not_set, ActionConstants.PARM_PERMISSIONS, ACTION_CHMOD)); |
| String optionsString = (String) parameters.get(ActionConstants.PARM_OPTIONS); |
| |
| String[] filesToProcess = absoluteFiles != null |
| ? ((absoluteFiles instanceof String) ? new String[] { (String) absoluteFiles } |
| : (String[]) absoluteFiles) |
| : makeFilesAbsolute(targetDir, targetFile); |
| |
| MultiStatus rStatus = new MultiStatus(Activator.ID, IStatus.OK, |
| NLS.bind(Messages.action_0_status, ACTION_CHMOD), null); |
| |
| for (String fileToChmod : filesToProcess) { |
| // Check that file exists |
| try { |
| File probe = new File(fileToChmod).getCanonicalFile(); |
| if (!probe.exists()) { |
| rStatus.add(Util.createError( |
| NLS.bind(Messages.action_0_failed_file_1_doesNotExist, ACTION_CHMOD, probe.toString()))); |
| continue; |
| } |
| } catch (IOException e) { |
| rStatus.add(Util.createError(NLS.bind(Messages.action_0_failed_on_file_1_reason_2, |
| new String[] { ACTION_CHMOD, fileToChmod, e.getMessage() }), e)); |
| continue; |
| } |
| IStatus chmodStatus = doChmod(fileToChmod, permissions, optionsString); |
| if (!chmodStatus.isOK()) { |
| rStatus.merge(chmodStatus); |
| } |
| } |
| |
| return rStatus; |
| } |
| |
| private String[] makeFilesAbsolute(String targetDir, String targetFile) { |
| return new String[] { new String(targetDir + IPath.SEPARATOR + targetFile) }; |
| } |
| |
| private IStatus doChmod(String fileToChmod, String permissions, String optionsString) { |
| String options[] = null; |
| if (optionsString != null) { |
| ArrayList<String> collect = new ArrayList<>(); |
| String r = optionsString.trim(); |
| while (r.length() > 0) { |
| int spaceIdx = r.indexOf(' '); |
| if (spaceIdx < 0) { |
| collect.add(r); |
| r = ""; //$NON-NLS-1$ |
| } else { |
| collect.add(r.substring(0, spaceIdx)); |
| r = r.substring(spaceIdx + 1); |
| r = r.trim(); |
| } |
| } |
| if (collect.size() > 0) { |
| options = new String[collect.size()]; |
| collect.toArray(options); |
| } |
| } |
| |
| return chmod(fileToChmod, permissions, options); |
| } |
| |
| @Override |
| public IStatus undo(Map<String, Object> parameters) { |
| // TODO: implement undo ?? |
| return Status.OK_STATUS; |
| } |
| |
| public IStatus chmod(String fileToChmod, String perms, String[] options) { |
| if (WINDOWS) |
| return Status.OK_STATUS; |
| Runtime r = Runtime.getRuntime(); |
| try { |
| // Note: 3 is from chmod, permissions, and target |
| String[] args = new String[3 + (options == null ? 0 : options.length)]; |
| int i = 0; |
| args[i++] = "chmod"; //$NON-NLS-1$ |
| if (options != null) { |
| for (String option : options) { |
| args[i++] = option; |
| } |
| } |
| args[i++] = perms; |
| args[i] = fileToChmod; |
| Process process = r.exec(args); |
| readOffStream(process.getErrorStream()); |
| readOffStream(process.getInputStream()); |
| try { |
| process.waitFor(); |
| } catch (InterruptedException e) { |
| // mark thread interrupted and continue |
| Thread.currentThread().interrupt(); |
| } |
| } catch (IOException e) { |
| return Util.createError(NLS.bind(Messages.action_0_failed_on_file_1_reason_2, |
| new String[] { ACTION_CHMOD, fileToChmod, e.getMessage() }), e); |
| } |
| return Status.OK_STATUS; |
| } |
| |
| private void readOffStream(InputStream inputStream) { |
| try (BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) { |
| while (reader.readLine() != null) { |
| // do nothing |
| } |
| } catch (IOException e) { |
| // ignore |
| } |
| } |
| } |