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create data message inside detination

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orignal 2014-10-07 14:06:50 -04:00
parent df518ac5fd
commit 9f1e496fa4
3 changed files with 26 additions and 27 deletions
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42
Destination.cpp
View File

@ -197,6 +197,27 @@ namespace stream
LogPrint ("Data: unexpected protocol ", buf[9]);
}
I2NPMessage * StreamingDestination::CreateDataMessage (const uint8_t * payload, size_t len)
{
I2NPMessage * msg = NewI2NPShortMessage ();
CryptoPP::Gzip compressor; // DEFAULT_DEFLATE_LEVEL
if (len <= COMPRESSION_THRESHOLD_SIZE)
compressor.SetDeflateLevel (CryptoPP::Gzip::MIN_DEFLATE_LEVEL);
compressor.Put (payload, len);
compressor.MessageEnd();
int size = compressor.MaxRetrievable ();
uint8_t * buf = msg->GetPayload ();
*(uint32_t *)buf = htobe32 (size); // length
buf += 4;
compressor.Get (buf, size);
memset (buf + 4, 0, 4); // source and destination ports. TODO: fill with proper values later
buf[9] = 6; // streaming protocol
msg->len += size + 4;
FillI2NPMessageHeader (msg, eI2NPData);
return msg;
}
void StreamingDestination::SetLeaseSetUpdated ()
{
UpdateLeaseSet ();
@ -385,26 +406,5 @@ namespace stream
{
return destinations;
}
I2NPMessage * CreateDataMessage (Stream * s, const uint8_t * payload, size_t len)
{
I2NPMessage * msg = NewI2NPShortMessage ();
CryptoPP::Gzip compressor; // DEFAULT_DEFLATE_LEVEL
if (len <= COMPRESSION_THRESHOLD_SIZE)
compressor.SetDeflateLevel (CryptoPP::Gzip::MIN_DEFLATE_LEVEL);
compressor.Put (payload, len);
compressor.MessageEnd();
int size = compressor.MaxRetrievable ();
uint8_t * buf = msg->GetPayload ();
*(uint32_t *)buf = htobe32 (size); // length
buf += 4;
compressor.Get (buf, size);
memset (buf + 4, 0, 4); // source and destination ports. TODO: fill with proper values later
buf[9] = 6; // streaming protocol
msg->len += size + 4;
FillI2NPMessageHeader (msg, eI2NPData);
return msg;
}
}
}

9
Destination.h
View File

@ -33,14 +33,16 @@ namespace stream
bool IsAcceptorSet () const { return m_Acceptor != nullptr; };
void HandleNextPacket (Packet * packet);
void SendTunnelDataMsgs (const std::vector<i2p::tunnel::TunnelMessageBlock>& msgs);
void ResetCurrentOutboundTunnel () { m_CurrentOutboundTunnel = nullptr; };
// I2CP
void HandleDataMessage (const uint8_t * buf, size_t len);
I2NPMessage * CreateDataMessage (const uint8_t * payload, size_t len);
// implements LocalDestination
const i2p::data::PrivateKeys& GetPrivateKeys () const { return m_Keys; };
const uint8_t * GetEncryptionPrivateKey () const { return m_EncryptionPrivateKey; };
const uint8_t * GetEncryptionPublicKey () const { return m_EncryptionPublicKey; };
void SetLeaseSetUpdated ();
void HandleDataMessage (const uint8_t * buf, size_t len);
void ResetCurrentOutboundTunnel () { m_CurrentOutboundTunnel = nullptr; };
private:
@ -117,9 +119,6 @@ namespace stream
StreamingDestination * LoadLocalDestination (const std::string& filename, bool isPublic);
// for HTTP
const StreamingDestinations& GetLocalDestinations ();
// assuming data is I2CP message
I2NPMessage * CreateDataMessage (Stream * s, const uint8_t * payload, size_t len);
}
}

2
Streaming.cpp
View File

@ -426,7 +426,7 @@ namespace stream
for (auto it: packets)
{
auto msg = m_RoutingSession->WrapSingleMessage (
CreateDataMessage (this, it->GetBuffer (), it->GetLength ()),
m_LocalDestination.CreateDataMessage (it->GetBuffer (), it->GetLength ()),
leaseSet);
msgs.push_back (i2p::tunnel::TunnelMessageBlock
{