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git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@143 379699f6-c40d-0410-875b-85095c16579e
stable
jochen 26 years ago
parent 5ae3e9508e
commit 44a0a36b2d
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  1. 177
      jode/jode/obfuscator/Main.java

177
jode/jode/obfuscator/Main.java
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/*
* Obfuscator (c) 1998 Jochen Hoenicke
*
* You may distribute under the terms of the GNU General Public License.
*
* IN NO EVENT SHALL JOCHEN HOENICKE BE LIABLE TO ANY PARTY FOR DIRECT,
* INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF
* THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF JOCHEN HOENICKE
* HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* JOCHEN HOENICKE SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
* BASIS, AND JOCHEN HOENICKE HAS NO OBLIGATION TO PROVIDE MAINTENANCE,
* SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
* $Id$
*/
package jode;
import jode.bytecode.ClassInfo;
import jode.obfuscator.*;
import java.util.Vector;
public class Obfuscator {
public static boolean isVerbose = false;
public static boolean isDebugging = false;
public static final int PRESERVE_PRIVATE = 0; // does this make sense?
public static final int PRESERVE_PACKAGE = 1;
public static final int PRESERVE_PROTECTED = 2;
public static final int PRESERVE_PUBLIC = 3;
public static final int PRESERVE_NONE = 4;
public static final int RENAME_STRONG = 0;
public static final int RENAME_WEAK = 1;
public static final int RENAME_UNIQUE = 2;
public static final int RENAME_NONE = 3;
public static final int RENAME_TABLE = 4;
public static void usage() {
System.err.println("usage: jode.Obfuscator flags* [class | package]*");
System.err.println("\t[-v] "+"Verbose output");
System.err.println("\t[-debug] "+"Debugging");
System.err.println("\t[-nostrip] "+
"Don't strip not needed methods");
System.err.println("\t[-sourcepath] "+
"Colon-separated list of source-file directory");
System.err.println("\t[-d <directory>] "+
"Destination directory for output classes");
System.err.println("Preserve options: ");
System.err.println("\t[-private] "+
"Preserve all private members");
System.err.println("\t[-package] "+
"Preserve all package members");
System.err.println("\t[-protected] "+
"Preserve all protected members");
System.err.println("\t[-public] "+
"Preserve all public members");
System.err.println("\t[-class <name>] "+
"Preserve only the given class (allowed multiple times");
System.err.println("\t[-method <name>] "+
"Preserve only the given metod (allowed multiple times");
System.err.println("Obfuscating options: ");
System.err.println("\t[-strong] "+
"Rename identifiers to random number/letters");
System.err.println("\t[-weak] "+
"Rename to random, but legal java identifier");
System.err.println("\t[-unique] "+
"Rename to unique legal java identifier");
System.err.println("\t[-none] "+
"Don't rename any method.");
System.err.println("\t[-table <file>] "+
"Read translation table from file");
System.err.println("\t[-revtable <file>] "+
"Write reversed translation table to file");
}
public static void main(String[] params) {
int i;
String sourcePath = System.getProperty("java.class.path");
String destPath = ".";
Vector classnames = new Vector();
Vector methodnames = new Vector();
boolean strip = true;
int preserve = PRESERVE_NONE;
int rename = RENAME_WEAK;
String table = null;
String toTable = null;
for (i=0; i<params.length && params[i].startsWith("-"); i++) {
if (params[i].equals("-v"))
isVerbose = true;
else if (params[i].equals("-debug"))
isDebugging = true;
else if (params[i].equals("-nostrip"))
strip = false;
else if (params[i].equals("-sourcepath"))
sourcePath = params[++i];
else if (params[i].equals("-classpath"))
sourcePath = params[++i];
else if (params[i].equals("-d"))
destPath = params[++i];
/* Preserve options */
else if (params[i].equals("-private"))
preserve = PRESERVE_PRIVATE;
else if (params[i].equals("-package"))
preserve = PRESERVE_PACKAGE;
else if (params[i].equals("-protected"))
preserve = PRESERVE_PROTECTED;
else if (params[i].equals("-public"))
preserve = PRESERVE_PUBLIC;
else if (params[i].equals("-class")) {
String className = params[++i];
classnames.addElement(className);
}
else if (params[i].equals("-method")) {
String methodName = params[++i];
methodnames.addElement(methodName);
}
/* Obfuscate options */
else if (params[i].equals("-strong"))
rename = RENAME_STRONG;
else if (params[i].equals("-weak"))
rename = RENAME_WEAK;
else if (params[i].equals("-unique"))
rename = RENAME_UNIQUE;
else if (params[i].equals("-none"))
rename = RENAME_NONE;
else if (params[i].equals("-table")) {
rename = RENAME_TABLE;
table = params[++i];
}
else if (params[i].equals("-revtable")) {
toTable = params[++i];
}
else if (params[i].equals("--")) {
i++;
break;
} else {
if (!params[i].startsWith("-h"))
System.err.println("Unknown option: "+params[i]);
usage();
return;
}
}
if (i == params.length) {
System.err.println("No package or classes specified.");
usage();
return;
}
ClassInfo.setClassPath(sourcePath);
ClassBundle bundle = new ClassBundle();
for (; i< params.length; i++)
bundle.loadClasses(params[i]);
bundle.markPreserved(preserve, classnames, methodnames);
if (strip)
bundle.strip();
if (rename != RENAME_TABLE)
bundle.buildTable(rename);
else
bundle.readTable(table);
if (toTable != null)
bundle.writeTable(table);
bundle.storeClasses(destPath);
}
}
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