From faae0a6514c2565a10f9a62dd18c5d79fbbe4156 Mon Sep 17 00:00:00 2001
From: jeff
Date: Thu, 31 Jul 2014 22:27:26 -0400
Subject: fixed bug with save mappings menu gui shows deobfuscated classes list
 now working on name validation/sanitization

---
 src/cuchaz/enigma/mapping/NameValidator.java | 67 ++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 src/cuchaz/enigma/mapping/NameValidator.java

(limited to 'src/cuchaz/enigma/mapping/NameValidator.java')

diff --git a/src/cuchaz/enigma/mapping/NameValidator.java b/src/cuchaz/enigma/mapping/NameValidator.java
new file mode 100644
index 0000000..30982dc
--- /dev/null
+++ b/src/cuchaz/enigma/mapping/NameValidator.java
@@ -0,0 +1,67 @@
+/*******************************************************************************
+ * Copyright (c) 2014 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Public License v3.0
+ * which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/gpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.mapping;
+
+import java.util.regex.Pattern;
+
+public class NameValidator
+{
+	private static final String IdentifierPattern;
+	private static final Pattern ClassPattern;
+	
+	static
+	{
+		// java allows all kinds of weird characters...
+		StringBuilder startChars = new StringBuilder();
+		StringBuilder partChars = new StringBuilder();
+		for( int i = Character.MIN_CODE_POINT; i <= Character.MAX_CODE_POINT; i++ )
+		{
+			if( Character.isJavaIdentifierStart( i ) )
+			{
+				startChars.appendCodePoint( i );
+			}
+			if( Character.isJavaIdentifierPart( i ) )
+			{
+				partChars.appendCodePoint( i );
+			}
+		}
+		
+		IdentifierPattern = String.format( "[\\Q%s\\E][\\Q%s\\E]*", startChars.toString(), partChars.toString() );
+		ClassPattern = Pattern.compile( String.format( "^(%s(\\.|/))*(%s)$", IdentifierPattern, IdentifierPattern ) );
+	}
+	
+	public String validateClassName( String name )
+	{
+		if( !ClassPattern.matcher( name ).matches() )
+		{
+			throw new IllegalArgumentException( "Illegal name: " + name );
+		}
+		
+		return classNameToJavaName( name );
+	}
+	
+	public static String fileNameToClassName( String fileName )
+	{
+		final String suffix = ".class";
+		
+		if( !fileName.endsWith( suffix ) )
+		{
+			return null;
+		}
+		
+		return fileName.substring( 0, fileName.length() - suffix.length() ).replace( "/", "." );
+	}
+	
+	public static String classNameToJavaName( String className )
+	{
+		return className.replace( ".", "/" );
+	}
+}
-- 
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