package org.apache.maven.plugin.assembly.utils;
/*
* 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.
*/
import org.apache.maven.plugin.assembly.format.AssemblyFormattingException;
import org.codehaus.plexus.logging.Logger;
import java.util.List;
/**
* @version $Id: TypeConversionUtils.java 1517906 2013-08-27 18:25:03Z krosenvold $
*/
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[list.size()]);
}
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.warn( messages.toString() );
}
return !warn;
}
}