package org.mvel2.tests.fuzz;
import org.mvel2.CompileException;
import org.mvel2.MVEL;
import org.mvel2.ScriptRuntimeException;
import org.mvel2.UnresolveablePropertyException;
import org.mvel2.util.StringAppender;
import java.io.IOException;
import static java.lang.Math.random;
import static java.lang.System.currentTimeMillis;
import java.text.DecimalFormat;
import java.util.Random;
public class Fuzzer {
private static final int MAX = 100000000;
private static final int[] SALTS = {83, 301, 320, 102, 105, 993, 203, 102, 4904, 1202,
102, 303, 83, 1, 5, 85, 19, 20, 193, 669, 344, 901,
930, 12, 1, 1, 89, 61, 8392, 2, 2038, 9, 7, 10, 484, 2301};
private static final char[] CHAR_TABLE = {
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'~', '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '-', '_', '+', '=', '{', '[', '}', ']', ':', ';', '"', '\'', '<', ',', '>',
'.', '?', '/', '`', ' ', '\t', '\n', '\r'
};
public static void main(String[] args) throws IOException {
DecimalFormat df = new DecimalFormat("###,###.##");
StringAppender append = new StringAppender();
int len;
long start = currentTimeMillis();
long time;
double rate;
int seed;
boolean flip = false;
Random rand = new Random(System.currentTimeMillis());
Random rand1 = new Random(System.currentTimeMillis() + 1);
Random rand2 = new Random(rand1.nextInt());
Random rand3 = new Random(rand.nextInt(SALTS.length - 1));
Random rand4 = new Random(rand3.nextInt());
for (int run = 0; run < MAX; run++) {
len = (int) (random() * 500) + 10;
append.reset();
for (int i = 0; i < len; i++) {
append.append(CHAR_TABLE[((SALTS[((rand.nextInt(1000)) + 1) % SALTS.length]) * ((flip = !flip) ? rand1.nextInt(1000) : rand2.nextInt(1000)) + 1) % CHAR_TABLE.length]);
SALTS[rand3.nextInt(SALTS.length - 1)] ^= rand4.nextInt(1000) + 1;
}
try {
MVEL.eval(append.toString());
}
catch (UnresolveablePropertyException e) {
//ignore
}
catch (CompileException e) {
//ignore
}
catch (ArithmeticException e) {
//ignore
}
catch (ScriptRuntimeException e) {
//ignore
}
catch (Exception e) {
System.out.println("untrapped error!\n---\n" + append.toString() + "\n---\n");
System.out.flush();
e.printStackTrace();
System.err.flush();
}
if (run % 25000 == 0 && run != 0) {
long l = time = (currentTimeMillis() - start) / 1000;
if (l == 0) {
l = 1;
}
rate = run / l;
System.out.println("Run: " + df.format(run) + " times; "
+ df.format(time) + "secs; " + df.format(rate) + " avg. per second.");
}
}
}
}