public IList<IArchiveFileInfo> Load(Stream input)
{
using var br = new BinaryReaderX(input, true);
// Read sections
var sections = ApkSection.ReadAll(input);
// Read pack header
var packHeader = sections.FirstOrDefault(x => x.Type == ApkSection.PackHeader).As<ApkPackHeader>();
_headerIdent = packHeader.headerIdent;
// Read entries
var entries = sections.FirstOrDefault(x => x.Type == ApkSection.PackToc).As<ApkToc>().entries;
// Read strings
using var stringBr = new BinaryReaderX(sections.FirstOrDefault(x => x.Type == ApkSection.StringTable).Data, true);
var stringHeader = stringBr.ReadType<ApkStringHeader>();
stringBr.BaseStream.Position = stringHeader.tableOffset;
var stringOffsets = stringBr.ReadMultiple<int>(stringHeader.stringCount);
var strings = new List<string>();
foreach (var stringOffset in stringOffsets)
{
stringBr.BaseStream.Position = stringHeader.dataOffset + stringOffset;
strings.Add(stringBr.ReadCStringASCII());
}
_name = strings[packHeader.stringIndex];
return ApkSupport.EnumerateFiles(new List<Stream> { input }, entries[0], UPath.Root, new List<ApkPackHeader> { packHeader }, strings, entries).ToArray();
}
public IList <IArchiveFileInfo> Load(Stream input, IList <Stream> apkStreams)
{
using var br = new BinaryReaderX(input, true);
// Validate APK streams
var tempApkStreams = new List <Stream>();
foreach (var apkStream in apkStreams)
{
using var apkBr = new BinaryReaderX(apkStream, true);
if (apkBr.ReadString(8) == ApkSection.StartSection)
{
apkStream.Position = 0;
tempApkStreams.Add(apkStream);
}
}
apkStreams = tempApkStreams;
// Read sections
var sections = ApkSection.ReadAll(input);
// Read pack headers
_apkHeaders = sections
.Where(x => x.Type == ApkSection.PackHeader)
.Select(x => x.As <ApkPackHeader>())
.ToArray();
// Order streams to pack headers
var combinedHeaderStreams = new List <(ApkPackHeader, Stream)>();
foreach (var apkStream in apkStreams)
{
var apkHeader = ApkSection.ReadAll(apkStream).FirstOrDefault(x => x.Type == ApkSection.PackHeader).As <ApkPackHeader>();
combinedHeaderStreams.Add((apkHeader, apkStream));
}
apkStreams = new List <Stream>();
foreach (var apkHeader in _apkHeaders)
{
apkStreams.Add(combinedHeaderStreams.FirstOrDefault(x => x.Item1.headerIdent.SequenceEqual(apkHeader.headerIdent)).Item2);
}
// Read entries
_entries = sections.FirstOrDefault(x => x.Type == ApkSection.PackToc).As <ApkToc>().entries;
// Read strings
using var stringBr = new BinaryReaderX(sections.FirstOrDefault(x => x.Type == ApkSection.StringTable).Data, true);
var stringHeader = stringBr.ReadType <ApkStringHeader>();
stringBr.BaseStream.Position = stringHeader.tableOffset;
var stringOffsets = stringBr.ReadMultiple <int>(stringHeader.stringCount);
_strings = new List <string>();
foreach (var stringOffset in stringOffsets)
{
stringBr.BaseStream.Position = stringHeader.dataOffset + stringOffset;
_strings.Add(stringBr.ReadCStringASCII());
}
return(ApkSupport.EnumerateFiles(apkStreams, _entries[0], UPath.Root, _apkHeaders, _strings, _entries).ToArray());
}
public void Save(Stream output, IList<IArchiveFileInfo> files)
{
ApkSupport.Save(output, files, _name, _headerIdent);
}