Java tutorial
package com.redhat.victims.cli.commands; /* * #%L * This file is part of victims-client. * %% * Copyright (C) 2013 The Victims Project * %% * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * #L% */ import com.redhat.victims.cli.Repl; import com.redhat.victims.cli.results.CommandResult; import com.redhat.victims.cli.results.ExitSuccess; import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.Collection; import java.util.List; import org.apache.commons.io.DirectoryWalker; /** * * @author gm */ public class ScanDirCommand implements Command { public static final String COMMAND_NAME = "scan-dir"; private Usage help; private List<String> arguments; private boolean recursiveMode; protected Repl repl; class DirectoryScanner extends DirectoryWalker { private Repl repl; private boolean recursive; public DirectoryScanner(boolean recursive, Repl repl) { super(); this.repl = repl; this.recursive = recursive; } @Override protected boolean handleDirectory(File directory, int depth, Collection results) { if (!recursive && depth > 0) { return false; // break; } return true; } @Override protected void handleFile(File file, int depth, Collection results) { try { String path = file.getCanonicalPath().toLowerCase(); if (path.endsWith("pom.xml")) { repl.runCommand(PomScannerCommand.COMMAND_NAME, file.getCanonicalPath()); } else if (path.endsWith(".jar") || path.endsWith(".ear") || path.endsWith(".war") || path.endsWith(".zip")) { repl.runCommand(ScanFileCommand.COMMAND_NAME, file.getCanonicalPath()); } else { // don't care. } } catch (IOException e) { e.printStackTrace(); } } public void scan(String filename) throws IOException { walk(new File(filename), null); } } public ScanDirCommand(boolean recursive, Repl dispatch) { help = new Usage(getName(), "Scans the supplied directory for .jar files and reports any vulnerabilities found"); help.addExample("/usr/share/java"); recursiveMode = recursive; repl = dispatch; } @Override public final String getName() { return COMMAND_NAME; } @Override public void setArguments(List<String> args) { this.arguments = args; } @Override public CommandResult execute(List<String> args) { CommandResult result = new ExitSuccess(null); DirectoryScanner scanner = new DirectoryScanner(recursiveMode, repl); for (String arg : args) { try { // dispatched and reported asynchronously scanner.scan(arg); } catch (IOException e) { result.addVerboseOutput(String.format("error: (%s) - %s", arg, e.toString())); } } return result; } @Override public String usage() { return help.toString(); } @Override public Command newInstance() { return new ScanDirCommand(this.recursiveMode, this.repl); } @Override public CommandResult call() throws Exception { return execute(this.arguments); } }