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feat: update internal framework to API 31 (12 Release) (#2743)

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* feat: update internal framework to API 31 (12 Release)

* refactor: rename enums for new overlays/stagedAliases

* fix: introduce basic staged alias support

* feat: update internal framework to API 32 (12L Release)

* fix: add support for overlay spec skipping
This commit is contained in:
Connor Tumbleson 2022-03-21 07:20:04 -04:00 committed by GitHub
commit 49071d0fb0
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2 changed files with 49 additions and 12 deletions
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61
brut.apktool/apktool-lib/src/main/java/brut/androlib/res/decoder/ARSCDecoder.java
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@ -87,7 +87,7 @@ public class ARSCDecoder {
}
private ResPackage readTablePackage() throws IOException, AndrolibException {
checkChunkType(Header.TYPE_PACKAGE);
checkChunkType(Header.XML_TYPE_PACKAGE);
int id = mIn.readInt();
if (id == 0) {
@ -128,11 +128,17 @@ public class ARSCDecoder {
boolean flag = true;
while (flag) {
switch (mHeader.type) {
case Header.TYPE_LIBRARY:
case Header.XML_TYPE_SPEC_TYPE:
readTableTypeSpec();
break;
case Header.XML_TYPE_LIBRARY:
readLibraryType();
break;
case Header.TYPE_SPEC_TYPE:
readTableTypeSpec();
case Header.XML_TYPE_OVERLAY:
readOverlaySpec();
break;
case Header.XML_TYPE_STAGED_ALIAS:
readStagedAliasSpec();
break;
default:
flag = false;
@ -144,7 +150,7 @@ public class ARSCDecoder {
}
private void readLibraryType() throws AndrolibException, IOException {
checkChunkType(Header.TYPE_LIBRARY);
checkChunkType(Header.XML_TYPE_LIBRARY);
int libraryCount = mIn.readInt();
int packageId;
@ -156,11 +162,32 @@ public class ARSCDecoder {
LOGGER.info(String.format("Decoding Shared Library (%s), pkgId: %d", packageName, packageId));
}
while(nextChunk().type == Header.TYPE_TYPE) {
while(nextChunk().type == Header.XML_TYPE_TYPE) {
readTableTypeSpec();
}
}
private void readStagedAliasSpec() throws IOException {
int count = mIn.readInt();
for (int i = 0; i < count; i++) {
LOGGER.info(String.format("Skipping staged alias stagedId (%h) finalId: %h", mIn.readInt(), mIn.readInt()));
}
nextChunk();
}
private void readOverlaySpec() throws IOException {
/* policyFlags */mIn.skipInt();
int count = mIn.readInt();
for (int i = 0; i < count; i++) {
LOGGER.info(String.format("Skipping overlay (%h)", mIn.readInt()));
}
nextChunk();
}
private void readTableTypeSpec() throws AndrolibException, IOException {
mTypeSpec = readSingleTableTypeSpec();
addTypeSpec(mTypeSpec);
@ -168,7 +195,7 @@ public class ARSCDecoder {
int type = nextChunk().type;
ResTypeSpec resTypeSpec;
while (type == Header.TYPE_SPEC_TYPE) {
while (type == Header.XML_TYPE_SPEC_TYPE) {
resTypeSpec = readSingleTableTypeSpec();
addTypeSpec(resTypeSpec);
type = nextChunk().type;
@ -180,7 +207,7 @@ public class ARSCDecoder {
}
}
while (type == Header.TYPE_TYPE) {
while (type == Header.XML_TYPE_TYPE) {
readTableType();
// skip "TYPE 8 chunks" and/or padding data at the end of this chunk
@ -196,7 +223,7 @@ public class ARSCDecoder {
}
private ResTypeSpec readSingleTableTypeSpec() throws AndrolibException, IOException {
checkChunkType(Header.TYPE_SPEC_TYPE);
checkChunkType(Header.XML_TYPE_SPEC_TYPE);
int id = mIn.readUnsignedByte();
mIn.skipBytes(3);
int entryCount = mIn.readInt();
@ -212,7 +239,7 @@ public class ARSCDecoder {
}
private ResType readTableType() throws IOException, AndrolibException {
checkChunkType(Header.TYPE_TYPE);
checkChunkType(Header.XML_TYPE_TYPE);
int typeId = mIn.readUnsignedByte() - mTypeIdOffset;
if (mResTypeSpecs.containsKey(typeId)) {
mResId = (0xff000000 & mResId) | mResTypeSpecs.get(typeId).getId() << 16;
@ -604,8 +631,18 @@ public class ARSCDecoder {
return new Header(type, in.readShort(), in.readInt(), start);
}
public final static short TYPE_NONE = -1, TYPE_TABLE = 0x0002,
TYPE_PACKAGE = 0x0200, TYPE_TYPE = 0x0201, TYPE_SPEC_TYPE = 0x0202, TYPE_LIBRARY = 0x0203;
public final static short TYPE_NONE = -1;
public final static short TYPE_STRING_POOL = 0x0001;
public final static short TYPE_TABLE = 0x0002;
public final static short TYPE_XML = 0x0003;
public final static short XML_TYPE_PACKAGE = 0x0200;
public final static short XML_TYPE_TYPE = 0x0201;
public final static short XML_TYPE_SPEC_TYPE = 0x0202;
public final static short XML_TYPE_LIBRARY = 0x0203;
public final static short XML_TYPE_OVERLAY = 0x0204;
public final static short XML_TYPE_OVERLAY_POLICY = 0x0205;
public final static short XML_TYPE_STAGED_ALIAS = 0x0206;
}
public static class FlagsOffset {

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brut.apktool/apktool-lib/src/main/resources/brut/androlib/android-framework.jar
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