| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.maven.plugins.assembly.utils; |
| |
| import java.util.List; |
| |
| import org.apache.maven.plugins.assembly.format.AssemblyFormattingException; |
| import org.slf4j.Logger; |
| |
| /** |
| * |
| */ |
| public final class TypeConversionUtils { |
| |
| private static final int U_R = 256; |
| |
| private static final int U_W = 128; |
| |
| private static final int U_X = 64; |
| |
| private static final int G_R = 32; |
| |
| private static final int G_W = 16; |
| |
| private static final int G_X = 8; |
| |
| private static final int W_R = 4; |
| |
| private static final int W_W = 2; |
| |
| private static final int W_X = 1; |
| |
| private TypeConversionUtils() {} |
| |
| public static String[] toStringArray(final List<String> list) { |
| String[] result = null; |
| |
| if ((list != null) && !list.isEmpty()) { |
| result = list.toArray(new String[0]); |
| } |
| |
| return result; |
| } |
| |
| public static int modeToInt(final String mode, final Logger logger) throws AssemblyFormattingException { |
| if (mode == null || mode.trim().length() < 1) { |
| return -1; |
| } |
| |
| try { |
| final int value = Integer.parseInt(mode, 8); |
| |
| // discard sanity assessment here; we're pushing ahead. |
| verifyModeSanity(value, logger); |
| |
| return value; |
| } catch (final NumberFormatException e) { |
| throw new AssemblyFormattingException("Failed to parse mode as an octal number: \'" + mode + "\'.", e); |
| } |
| } |
| |
| // the boolean return type is for people who want to make a decision based on the sanity |
| // assessment. |
| public static boolean verifyModeSanity(final int mode, final Logger logger) { |
| final StringBuilder messages = new StringBuilder(); |
| |
| messages.append("The mode: ").append(Integer.toString(mode, 8)).append(" contains nonsensical permissions:"); |
| |
| boolean warn = false; |
| |
| // read-access checks. |
| if (((mode & U_R) == 0) && ((mode & G_R) == G_R)) { |
| messages.append("\n- Group has read access, but user does not."); |
| warn = true; |
| } |
| |
| if (((mode & U_R) == 0) && ((mode & W_R) == W_R)) { |
| messages.append("\n- World has read access, but user does not."); |
| warn = true; |
| } |
| |
| if (((mode & G_R) == 0) && ((mode & W_R) == W_R)) { |
| messages.append("\n- World has read access, but group does not."); |
| warn = true; |
| } |
| // end read-access checks. |
| |
| // write-access checks. |
| if (((mode & U_W) == 0) && ((mode & G_W) == G_W)) { |
| messages.append("\n- Group has write access, but user does not."); |
| warn = true; |
| } |
| |
| if (((mode & U_W) == 0) && ((mode & W_W) == W_W)) { |
| messages.append("\n- World has write access, but user does not."); |
| warn = true; |
| } |
| |
| if (((mode & G_W) == 0) && ((mode & W_W) == W_W)) { |
| messages.append("\n- World has write access, but group does not."); |
| warn = true; |
| } |
| // end write-access checks. |
| |
| // execute-/list-access checks. |
| if (((mode & U_X) == 0) && ((mode & G_X) == G_X)) { |
| messages.append("\n- Group has execute/list access, but user does not."); |
| warn = true; |
| } |
| |
| if (((mode & U_X) == 0) && ((mode & W_X) == W_X)) { |
| messages.append("\n- World has execute/list access, but user does not."); |
| warn = true; |
| } |
| |
| if (((mode & G_X) == 0) && ((mode & W_X) == W_X)) { |
| messages.append("\n- World has execute/list access, but group does not."); |
| warn = true; |
| } |
| // end execute-/list-access checks. |
| |
| if (warn && logger != null) { |
| logger.warn(messages.toString()); |
| } |
| |
| return !warn; |
| } |
| } |