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ARSCDecoder: added possibility to get flags offsets of ARSC file.

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This commit is contained in:
Ryszard Wiśniewski 2010-04-28 12:15:57 +02:00
parent 2aec8cbcbb
commit dc190d9210
1 changed files with 42 additions and 2 deletions
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44
src/brut/androlib/res/decoder/ARSCDecoder.java
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@ -24,7 +24,10 @@ import brut.util.Duo;
import brut.util.ExtDataInput; import brut.util.ExtDataInput;
import com.mindprod.ledatastream.LEDataInputStream; import com.mindprod.ledatastream.LEDataInputStream;
import java.io.*; import java.io.*;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger; import java.util.logging.Logger;
import org.apache.commons.io.input.CountingInputStream;
/** /**
* @author Ryszard Wiśniewski <brut.alll@gmail.com> * @author Ryszard Wiśniewski <brut.alll@gmail.com>
@ -33,13 +36,34 @@ public class ARSCDecoder {
public static ResPackage[] decode(InputStream arscStream, ResTable resTable) public static ResPackage[] decode(InputStream arscStream, ResTable resTable)
throws AndrolibException { throws AndrolibException {
try { try {
return new ARSCDecoder(arscStream, resTable).readTable(); return new ARSCDecoder(arscStream, resTable, false).readTable();
} catch (IOException ex) { } catch (IOException ex) {
throw new AndrolibException("Could not decode arsc file", ex); throw new AndrolibException("Could not decode arsc file", ex);
} }
} }
private ARSCDecoder(InputStream arscStream, ResTable resTable) { public static List<FlagsOffset> findFlagsOffsets(InputStream arscStream)
throws AndrolibException {
try {
ResTable resTable = new ResTable();
ARSCDecoder decoder = new ARSCDecoder(arscStream, resTable, true);
decoder.readTable();
return decoder.mFlagsOffsets;
} catch (IOException ex) {
throw new AndrolibException("Could not decode arsc file", ex);
}
}
private ARSCDecoder(InputStream arscStream, ResTable resTable,
boolean storeFlagsOffsets) {
if (storeFlagsOffsets) {
arscStream = mCountIn = new CountingInputStream(arscStream);
mFlagsOffsets = new ArrayList<FlagsOffset>();
} else {
mCountIn = null;
mFlagsOffsets = null;
}
mIn = new ExtDataInput(new LEDataInputStream(arscStream)); mIn = new ExtDataInput(new LEDataInputStream(arscStream));
mResTable = resTable; mResTable = resTable;
} }
@ -87,6 +111,10 @@ public class ARSCDecoder {
byte id = mIn.readByte(); byte id = mIn.readByte();
mIn.skipBytes(3); mIn.skipBytes(3);
int entryCount = mIn.readInt(); int entryCount = mIn.readInt();
if (mFlagsOffsets != null) {
mFlagsOffsets.add(new FlagsOffset(mCountIn.getCount(), entryCount));
}
/*flags*/ mIn.skipBytes(entryCount * 4); /*flags*/ mIn.skipBytes(entryCount * 4);
mResId = (0xff000000 & mResId) | id << 16; mResId = (0xff000000 & mResId) | id << 16;
@ -245,6 +273,8 @@ public class ARSCDecoder {
private final ExtDataInput mIn; private final ExtDataInput mIn;
private final ResTable mResTable; private final ResTable mResTable;
private final CountingInputStream mCountIn;
private final List<FlagsOffset> mFlagsOffsets;
private Header mHeader; private Header mHeader;
private StringBlock mTableStrings; private StringBlock mTableStrings;
@ -287,6 +317,16 @@ public class ARSCDecoder {
TYPE_CONFIG = 0x0201; TYPE_CONFIG = 0x0201;
} }
public static class FlagsOffset {
public final int offset;
public final int count;
public FlagsOffset(int offset, int count) {
this.offset = offset;
this.count = count;
}
}
private static final Logger LOGGER = private static final Logger LOGGER =
Logger.getLogger(ARSCDecoder.class.getName()); Logger.getLogger(ARSCDecoder.class.getName());
} }