public void parse()
{
// read magic
string magic = Encoding.UTF8.GetString(Buffers.readBytes(buffer, 8)); //new string(Buffers.readBytes(buffer, 8));
if (!magic.StartsWith("dex\n"))
{
return;
}
int version = int.Parse(magic.Substring(4, 7));
// now the version is 035
if (version < 35)
{
// version 009 was used for the M3 releases of the Android platform (November–December 2007),
// and version 013 was used for the M5 releases of the Android platform (February–March 2008)
throw new Exception("Dex file version: " + version + " is not supported");
}
// read header
DexHeader header = readDexHeader();
header.setVersion(version);
// read string pool
long[] stringOffsets = readStringPool(header.getStringIdsOff(), header.getStringIdsSize());
// read types
int[] typeIds = readTypes(header.getTypeIdsOff(), header.getTypeIdsSize());
// read classes
DexClassStruct[] dexClassStructs = readClass(header.getClassDefsOff(),
header.getClassDefsSize());
StringPool stringpool = readStrings(stringOffsets);
string[] types = new string[typeIds.Length];
for (int i = 0; i < typeIds.Length; i++)
{
types[i] = stringpool.get(typeIds[i]);
}
dexClasses = new DexClass[dexClassStructs.Length];
for (int i = 0; i < dexClasses.Length; i++)
{
dexClasses[i] = new DexClass();
}
for (int i = 0; i < dexClassStructs.Length; i++)
{
DexClassStruct dexClassStruct = dexClassStructs[i];
DexClass dexClass = dexClasses[i];
dexClass.setClassType(types[dexClassStruct.getClassIdx()]);
if (dexClassStruct.getSuperclassIdx() != NO_INDEX)
{
dexClass.setSuperClass(types[dexClassStruct.getSuperclassIdx()]);
}
dexClass.setAccessFlags(dexClassStruct.getAccessFlags());
}
}
private DexHeader readDexHeader()
{
// check sum. skip
buffer.getInt();
// signature skip
Buffers.readBytes(buffer, DexHeader.kSHA1DigestLen);
DexHeader header = new DexHeader();
header.setFileSize(Buffers.readUInt(buffer));
header.setHeaderSize(Buffers.readUInt(buffer));
// skip?
Buffers.readUInt(buffer);
// static link data
header.setLinkSize(Buffers.readUInt(buffer));
header.setLinkOff(Buffers.readUInt(buffer));
// the map data is just the same as dex header.
header.setMapOff(Buffers.readUInt(buffer));
header.setStringIdsSize(buffer.getInt());
header.setStringIdsOff(Buffers.readUInt(buffer));
header.setTypeIdsSize(buffer.getInt());
header.setTypeIdsOff(Buffers.readUInt(buffer));
header.setProtoIdsSize(buffer.getInt());
header.setProtoIdsOff(Buffers.readUInt(buffer));
header.setFieldIdsSize(buffer.getInt());
header.setFieldIdsOff(Buffers.readUInt(buffer));
header.setMethodIdsSize(buffer.getInt());
header.setMethodIdsOff(Buffers.readUInt(buffer));
header.setClassDefsSize(buffer.getInt());
header.setClassDefsOff(Buffers.readUInt(buffer));
header.setDataSize(buffer.getInt());
header.setDataOff(Buffers.readUInt(buffer));
buffer.position((int)header.getHeaderSize());
return(header);
}
public DexReader(Dex dex)
{
Dex = dex;
Map = new Map();
Header = new DexHeader();
}
