Mozilla ARchive file is Mozilla's own archive format to distribute software updates. Test files can be found on Mozilla's FTP site, for example:
This page hosts a formal specification of Mozilla ARchive using Kaitai Struct. This specification can be automatically translated into a variety of programming languages to get a parsing library.
All parsing code for C# generated by Kaitai Struct depends on the C# runtime library. You have to install it before you can parse data.
The C# runtime library is available in the NuGet Gallery. Installation instructions can also be found there.
Parse a local file and get structure in memory:
var data = MozillaMar.FromFile("path/to/local/file.mar");
Or parse structure from a byte array:
byte[] someArray = new byte[] { ... };
var data = new MozillaMar(new KaitaiStream(someArray));
After that, one can get various attributes from the structure by accessing properties like:
data.Magic // => get magic
// This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild
using System.Collections.Generic;
namespace Kaitai
{
/// <summary>
/// Mozilla ARchive file is Mozilla's own archive format to distribute software updates.
/// Test files can be found on Mozilla's FTP site, for example:
///
/// <http://ftp.mozilla.org/pub/firefox/nightly/partials/>
/// </summary>
/// <remarks>
/// Reference: <a href="https://wiki.mozilla.org/Software_Update:MAR">Source</a>
/// </remarks>
public partial class MozillaMar : KaitaiStruct
{
public static MozillaMar FromFile(string fileName)
{
return new MozillaMar(new KaitaiStream(fileName));
}
public enum SignatureAlgorithms
{
RsaPkcs1Sha1 = 1,
RsaPkcs1Sha384 = 2,
}
public enum BlockIdentifiers
{
ProductInformation = 1,
}
public MozillaMar(KaitaiStream p__io, KaitaiStruct p__parent = null, MozillaMar p__root = null) : base(p__io)
{
m_parent = p__parent;
m_root = p__root ?? this;
f_index = false;
_read();
}
private void _read()
{
_magic = m_io.ReadBytes(4);
if (!((KaitaiStream.ByteArrayCompare(Magic, new byte[] { 77, 65, 82, 49 }) == 0)))
{
throw new ValidationNotEqualError(new byte[] { 77, 65, 82, 49 }, Magic, M_Io, "/seq/0");
}
_ofsIndex = m_io.ReadU4be();
_fileSize = m_io.ReadU8be();
_lenSignatures = m_io.ReadU4be();
_signatures = new List<Signature>();
for (var i = 0; i < LenSignatures; i++)
{
_signatures.Add(new Signature(m_io, this, m_root));
}
_lenAdditionalSections = m_io.ReadU4be();
_additionalSections = new List<AdditionalSection>();
for (var i = 0; i < LenAdditionalSections; i++)
{
_additionalSections.Add(new AdditionalSection(m_io, this, m_root));
}
}
public partial class MarIndex : KaitaiStruct
{
public static MarIndex FromFile(string fileName)
{
return new MarIndex(new KaitaiStream(fileName));
}
public MarIndex(KaitaiStream p__io, MozillaMar p__parent = null, MozillaMar p__root = null) : base(p__io)
{
m_parent = p__parent;
m_root = p__root;
_read();
}
private void _read()
{
_lenIndex = m_io.ReadU4be();
__raw_indexEntries = m_io.ReadBytes(LenIndex);
var io___raw_indexEntries = new KaitaiStream(__raw_indexEntries);
_indexEntries = new IndexEntries(io___raw_indexEntries, this, m_root);
}
private uint _lenIndex;
private IndexEntries _indexEntries;
private MozillaMar m_root;
private MozillaMar m_parent;
private byte[] __raw_indexEntries;
public uint LenIndex { get { return _lenIndex; } }
public IndexEntries IndexEntries { get { return _indexEntries; } }
public MozillaMar M_Root { get { return m_root; } }
public MozillaMar M_Parent { get { return m_parent; } }
public byte[] M_RawIndexEntries { get { return __raw_indexEntries; } }
}
public partial class IndexEntries : KaitaiStruct
{
public static IndexEntries FromFile(string fileName)
{
return new IndexEntries(new KaitaiStream(fileName));
}
public IndexEntries(KaitaiStream p__io, MozillaMar.MarIndex p__parent = null, MozillaMar p__root = null) : base(p__io)
{
m_parent = p__parent;
m_root = p__root;
_read();
}
private void _read()
{
_indexEntry = new List<IndexEntry>();
{
var i = 0;
while (!m_io.IsEof) {
_indexEntry.Add(new IndexEntry(m_io, this, m_root));
i++;
}
}
}
private List<IndexEntry> _indexEntry;
private MozillaMar m_root;
private MozillaMar.MarIndex m_parent;
public List<IndexEntry> IndexEntry { get { return _indexEntry; } }
public MozillaMar M_Root { get { return m_root; } }
public MozillaMar.MarIndex M_Parent { get { return m_parent; } }
}
public partial class Signature : KaitaiStruct
{
public static Signature FromFile(string fileName)
{
return new Signature(new KaitaiStream(fileName));
}
public Signature(KaitaiStream p__io, MozillaMar p__parent = null, MozillaMar p__root = null) : base(p__io)
{
m_parent = p__parent;
m_root = p__root;
_read();
}
private void _read()
{
_algorithm = ((MozillaMar.SignatureAlgorithms) m_io.ReadU4be());
_lenSignature = m_io.ReadU4be();
_signature = m_io.ReadBytes(LenSignature);
}
private SignatureAlgorithms _algorithm;
private uint _lenSignature;
private byte[] _signature;
private MozillaMar m_root;
private MozillaMar m_parent;
public SignatureAlgorithms Algorithm { get { return _algorithm; } }
public uint LenSignature { get { return _lenSignature; } }
public byte[] Signature { get { return _signature; } }
public MozillaMar M_Root { get { return m_root; } }
public MozillaMar M_Parent { get { return m_parent; } }
}
public partial class ProductInformationBlock : KaitaiStruct
{
public static ProductInformationBlock FromFile(string fileName)
{
return new ProductInformationBlock(new KaitaiStream(fileName));
}
public ProductInformationBlock(KaitaiStream p__io, MozillaMar.AdditionalSection p__parent = null, MozillaMar p__root = null) : base(p__io)
{
m_parent = p__parent;
m_root = p__root;
_read();
}
private void _read()
{
_marChannelName = System.Text.Encoding.GetEncoding("UTF-8").GetString(KaitaiStream.BytesTerminate(m_io.ReadBytes(64), 0, false));
_productVersion = System.Text.Encoding.GetEncoding("UTF-8").GetString(KaitaiStream.BytesTerminate(m_io.ReadBytes(32), 0, false));
}
private string _marChannelName;
private string _productVersion;
private MozillaMar m_root;
private MozillaMar.AdditionalSection m_parent;
public string MarChannelName { get { return _marChannelName; } }
public string ProductVersion { get { return _productVersion; } }
public MozillaMar M_Root { get { return m_root; } }
public MozillaMar.AdditionalSection M_Parent { get { return m_parent; } }
}
public partial class IndexEntry : KaitaiStruct
{
public static IndexEntry FromFile(string fileName)
{
return new IndexEntry(new KaitaiStream(fileName));
}
public IndexEntry(KaitaiStream p__io, MozillaMar.IndexEntries p__parent = null, MozillaMar p__root = null) : base(p__io)
{
m_parent = p__parent;
m_root = p__root;
f_body = false;
_read();
}
private void _read()
{
_ofsContent = m_io.ReadU4be();
_lenContent = m_io.ReadU4be();
_flags = m_io.ReadU4be();
_fileName = System.Text.Encoding.GetEncoding("UTF-8").GetString(m_io.ReadBytesTerm(0, false, true, true));
}
private bool f_body;
private byte[] _body;
public byte[] Body
{
get
{
if (f_body)
return _body;
KaitaiStream io = M_Root.M_Io;
long _pos = io.Pos;
io.Seek(OfsContent);
_body = io.ReadBytes(LenContent);
io.Seek(_pos);
f_body = true;
return _body;
}
}
private uint _ofsContent;
private uint _lenContent;
private uint _flags;
private string _fileName;
private MozillaMar m_root;
private MozillaMar.IndexEntries m_parent;
public uint OfsContent { get { return _ofsContent; } }
public uint LenContent { get { return _lenContent; } }
/// <summary>
/// File permission bits (in standard unix-style format).
/// </summary>
public uint Flags { get { return _flags; } }
public string FileName { get { return _fileName; } }
public MozillaMar M_Root { get { return m_root; } }
public MozillaMar.IndexEntries M_Parent { get { return m_parent; } }
}
public partial class AdditionalSection : KaitaiStruct
{
public static AdditionalSection FromFile(string fileName)
{
return new AdditionalSection(new KaitaiStream(fileName));
}
public AdditionalSection(KaitaiStream p__io, MozillaMar p__parent = null, MozillaMar p__root = null) : base(p__io)
{
m_parent = p__parent;
m_root = p__root;
_read();
}
private void _read()
{
_lenBlock = m_io.ReadU4be();
_blockIdentifier = ((MozillaMar.BlockIdentifiers) m_io.ReadU4be());
switch (BlockIdentifier) {
case MozillaMar.BlockIdentifiers.ProductInformation: {
__raw_bytes = m_io.ReadBytes(((LenBlock - 4) - 4));
var io___raw_bytes = new KaitaiStream(__raw_bytes);
_bytes = new ProductInformationBlock(io___raw_bytes, this, m_root);
break;
}
default: {
_bytes = m_io.ReadBytes(((LenBlock - 4) - 4));
break;
}
}
}
private uint _lenBlock;
private BlockIdentifiers _blockIdentifier;
private object _bytes;
private MozillaMar m_root;
private MozillaMar m_parent;
private byte[] __raw_bytes;
public uint LenBlock { get { return _lenBlock; } }
public BlockIdentifiers BlockIdentifier { get { return _blockIdentifier; } }
public object Bytes { get { return _bytes; } }
public MozillaMar M_Root { get { return m_root; } }
public MozillaMar M_Parent { get { return m_parent; } }
public byte[] M_RawBytes { get { return __raw_bytes; } }
}
private bool f_index;
private MarIndex _index;
public MarIndex Index
{
get
{
if (f_index)
return _index;
long _pos = m_io.Pos;
m_io.Seek(OfsIndex);
_index = new MarIndex(m_io, this, m_root);
m_io.Seek(_pos);
f_index = true;
return _index;
}
}
private byte[] _magic;
private uint _ofsIndex;
private ulong _fileSize;
private uint _lenSignatures;
private List<Signature> _signatures;
private uint _lenAdditionalSections;
private List<AdditionalSection> _additionalSections;
private MozillaMar m_root;
private KaitaiStruct m_parent;
public byte[] Magic { get { return _magic; } }
public uint OfsIndex { get { return _ofsIndex; } }
public ulong FileSize { get { return _fileSize; } }
public uint LenSignatures { get { return _lenSignatures; } }
public List<Signature> Signatures { get { return _signatures; } }
public uint LenAdditionalSections { get { return _lenAdditionalSections; } }
public List<AdditionalSection> AdditionalSections { get { return _additionalSections; } }
public MozillaMar M_Root { get { return m_root; } }
public KaitaiStruct M_Parent { get { return m_parent; } }
}
}