public void Read(BufRef reader)
{
// magic number and zero byte 6
var magic = reader.ReadBufLen(6);
_ = reader.Read8();
var magicstr = magic.ToEncoding(Encoding.UTF8);
if (magicstr != SU3_MAGIC_NUMBER)
{
throw new ArgumentException("Not SU3 data.");
}
// su3 file format version
FileVersion = reader.Read8();
SignatureType = reader.ReadFlip16();
SignatureLength = reader.ReadFlip16();
_ = reader.Read8();
VersionLength = reader.Read8();
_ = reader.Read8();
SignerIdLength = reader.Read8();
ContentLength = reader.ReadFlip64();
_ = reader.Read8();
FileType = (SU3FileTypes)reader.Read8();
_ = reader.Read8();
ContentType = (SU3ContentTypes)reader.Read8();
reader.Seek(12);
Version = reader.ReadBufLen(VersionLength);
SignerID = reader.ReadBufLen(SignerIdLength)
.ToEncoding(Encoding.UTF8);
}
void UpdateCachedFields(BufRef reader)
{
CachedKey = new I2PIdentHash(reader);
CachedFrom = new I2PIdentHash(reader);
CachedLookupType = (LookupTypes)reader.Read8();
if (((byte)CachedLookupType & 0x01) != 0)
{
CachedTunnelId = new I2PTunnelId(reader);
}
var excludecount = reader.ReadFlip16();
for (int i = 0; i < excludecount; ++i)
{
CachedExcludeList.Add(new DatabaseSearchReplyMessage(reader));
}
if (((byte)CachedLookupType & 0x02) != 0)
{
CachedReplyKey = new I2PSessionKey(reader);
var tagcount = reader.Read8();
CachedTags.Add(new I2PSessionTag(reader));
}
}
public RequestVariableLeaseSetMessage(BufRef reader)
: base(ProtocolMessageType.RequestVarLS)
{
var leases = reader.ReadFlip16();
for (int i = 0; i < leases; ++i)
{
Leases.Add(new I2PLease(reader));
}
}
public RequestLeaseSetMessage( BufRef reader )
: base(ProtocolMessageType.RequestLS)
{
SessionId = reader.ReadFlip16();
var leases = reader.Read8();
for ( int i = 0; i < leases; ++i )
{
Leases.Add( new I2PLease( reader ) );
}
}
void UpdateCachedFields(BufRef reader)
{
CachedKey = new I2PIdentHash(reader);
CachedContent = reader.Read8() == 0 ? MessageContent.RouterInfo : MessageContent.LeaseSet;
CachedReplyToken = reader.Read32();
if (CachedReplyToken != 0)
{
CachedReplyTunnelId = reader.Read32();
CachedReplyGateway = new I2PIdentHash(reader);
}
switch (CachedContent)
{
case MessageContent.RouterInfo:
var length = reader.ReadFlip16();
#if USE_BC_GZIP
CachedRouterInfo = new I2PRouterInfo(
new BufRefLen(LZUtils.BCGZipDecompressNew(new BufLen(reader, 0, length))), true);
#else
using (var ms = new MemoryStream())
{
ms.Write(reader.BaseArray, reader.BaseArrayOffset, length);
ms.Position = 0;
using (var gzs = new GZipStream(ms, CompressionMode.Decompress))
{
var gzdata = StreamUtils.Read(gzs);
CachedRouterInfo = new I2PRouterInfo(new BufRefLen(gzdata), true);
}
}
#endif
reader.Seek(length);
break;
case MessageContent.LeaseSet:
CachedLeaseSet = new I2PLeaseSet(reader);
break;
/*
* case MessageContent.LeaseSet2:
* break;
*
* case MessageContent.EncryptedLeaseSet:
* break;
*
* case MessageContent.MetaLeaseSet:
* break;
*/
default:
throw new InvalidDataException($"DatabaseStoreMessage: {CachedContent} not supported");
}
}
public CreateLeaseSetMessage(BufRef reader, I2CPSession session)
: base(ProtocolMessageType.CreateLS)
{
SessionId = reader.ReadFlip16();
var cert = session.SessionIds[SessionId].Config.Destination.Certificate;
DSAPrivateSigningKey = new I2PSigningPrivateKey(
reader,
new I2PCertificate(I2PSigningKey.SigningKeyTypes.DSA_SHA1));
PrivateKey = new I2PPrivateKey(reader, cert);
Leases = new I2PLeaseSet(reader);
}
public I2PMapping(BufRef buf)
{
var bytes = buf.ReadFlip16();
var endpos = buf.BaseArrayOffset + bytes;
while (buf.BaseArrayOffset < endpos)
{
var key = new I2PString(buf);
if (buf.Peek8(0) == '=')
{
buf.Seek(1);
}
var value = new I2PString(buf);
if (buf.Peek8(0) == ';')
{
buf.Seek(1);
}
Mappings[key] = value;
}
}
void UpdateCachedFields(BufRef reader)
{
CachedKey = new I2PIdentHash(reader);
CachedContent = reader.Read8() == 0 ? MessageContent.RouterInfo : MessageContent.LeaseSet;
CachedReplyToken = reader.Read32();
if (CachedReplyToken != 0)
{
CachedReplyTunnelId = reader.Read32();
CachedReplyGateway = new I2PIdentHash(reader);
}
if (CachedContent == MessageContent.RouterInfo)
{
var length = reader.ReadFlip16();
#if USE_BC_GZIP
CachedRouterInfo = new I2PRouterInfo(
new BufRefLen(LZUtils.BCGZipDecompressNew(new BufLen(reader, 0, length))), true);
#else
using (var ms = new MemoryStream())
{
ms.Write(reader.BaseArray, reader.BaseArrayOffset, length);
ms.Position = 0;
using (var gzs = new GZipStream(ms, CompressionMode.Decompress))
{
var gzdata = StreamUtils.Read(gzs);
CachedRouterInfo = new I2PRouterInfo(new BufRefLen(gzdata), true);
}
}
#endif
reader.Seek(length);
}
else
{
CachedLeaseSet = new I2PLeaseSet(reader);
}
}
public ReconfigureSessionMessage(BufRef reader) : base(ProtocolMessageType.ReconfigSession)
{
SessionId = reader.ReadFlip16();
Config = new I2PSessionConfig(reader);
}
public SessionStatusMessage(BufRef reader)
: base(ProtocolMessageType.SessionStatus)
{
SessionId = reader.ReadFlip16();
SessionState = (SessionStates)reader.Read8();
}
public DestroySessionMessage(BufRef reader)
: base(ProtocolMessageType.DestroySession)
{
SessionId = reader.ReadFlip16();
}