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AS3 deobfuscation fix (jumps after the end), faster instruction length calculation

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honfika@gmail.com
2015-07-04 14:23:37 +02:00
parent 1b50f77ac8
commit 738b26ccc1
13 changed files with 1487 additions and 1344 deletions
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84
libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/ABCStreamTest.java
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@@ -21,6 +21,8 @@ import com.jpexs.decompiler.flash.abc.ABCOutputStream;
import com.jpexs.helpers.MemoryInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.fail;
import org.testng.annotations.BeforeClass;
@@ -37,20 +39,80 @@ public class ABCStreamTest {
//Main.initLogging(false);
}
private List<Long> getTestNumebers(long min, long max) {
List<Long> res = new ArrayList<>();
addWhenBetween(res, 1531, min, max);
long x = 1;
for (int i = 0; i < 32; i++) {
x <<= 1;
addWhenBetween(res, x - 1, min, max);
addWhenBetween(res, x, min, max);
addWhenBetween(res, x + 1, min, max);
addWhenBetween(res, -(x - 1), min, max);
addWhenBetween(res, -x, min, max);
addWhenBetween(res, -(x + 1), min, max);
}
return res;
}
private void addWhenBetween(List<Long> list, long num, long min, long max) {
if (num >= min && num <= max) {
list.add(num);
}
}
@Test
public void testU30() {
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ABCOutputStream aos = new ABCOutputStream(baos);) {
long number = 1531;
aos.writeU30(number);
aos.close();
try (MemoryInputStream mis = new MemoryInputStream(baos.toByteArray());
ABCInputStream ais = new ABCInputStream(mis);) {
assertEquals(number, ais.readU30("test"));
assertEquals(0, mis.available());
for (long number : getTestNumebers(0, (1L << 30) - 1)) {
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ABCOutputStream aos = new ABCOutputStream(baos);) {
aos.writeU30(number);
aos.close();
try (MemoryInputStream mis = new MemoryInputStream(baos.toByteArray());
ABCInputStream ais = new ABCInputStream(mis);) {
assertEquals(number, ais.readU30("test"));
assertEquals(0, mis.available());
}
} catch (IOException ex) {
fail();
}
}
}
@Test
public void testU32() {
for (long number : getTestNumebers(0, (1L << 32) - 1)) {
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ABCOutputStream aos = new ABCOutputStream(baos);) {
aos.writeU32(number);
aos.close();
try (MemoryInputStream mis = new MemoryInputStream(baos.toByteArray());
ABCInputStream ais = new ABCInputStream(mis);) {
assertEquals(number, ais.readU32("test"));
assertEquals(0, mis.available());
}
} catch (IOException ex) {
fail();
}
}
}
@Test
public void testS32() {
for (long number : getTestNumebers(-(1L << 31), (1 << 31) - 1)) {
try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
ABCOutputStream aos = new ABCOutputStream(baos);) {
aos.writeU32(number);
aos.close();
try (MemoryInputStream mis = new MemoryInputStream(baos.toByteArray());
ABCInputStream ais = new ABCInputStream(mis);) {
assertEquals(number, ais.readS32("test"));
assertEquals(0, mis.available());
}
} catch (IOException ex) {
fail();
}
} catch (IOException ex) {
fail();
}
}
}