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[gzip] do not initialize deflator if gzip is not enabled for tunnel

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Signed-off-by: R4SAS <r4sas@i2pmail.org>
This commit is contained in:
R4SAS 2021-09-14 14:48:21 +03:00
parent e5c773a3eb
commit d2faec70be
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GPG key ID: 66F6C87B98EBCFE2
5 changed files with 60 additions and 46 deletions
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14
libi2pd/Datagram.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2020, The PurpleI2P Project
* Copyright (c) 2013-2021, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@ -21,6 +21,9 @@ namespace datagram
DatagramDestination::DatagramDestination (std::shared_ptr<i2p::client::ClientDestination> owner, bool gzip):
m_Owner (owner), m_Receiver (nullptr), m_RawReceiver (nullptr), m_Gzip (gzip)
{
if (m_Gzip)
m_Deflator.reset (new i2p::data::GzipDeflator);
auto identityLen = m_Owner->GetIdentity ()->GetFullLen ();
m_From.resize (identityLen);
m_Owner->GetIdentity ()->ToBuffer (m_From.data (), identityLen);
@ -152,11 +155,16 @@ namespace datagram
const std::vector<std::pair<const uint8_t *, size_t> >& payloads,
uint16_t fromPort, uint16_t toPort, bool isRaw, bool checksum)
{
size_t size;
auto msg = m_I2NPMsgsPool.AcquireShared ();
uint8_t * buf = msg->GetPayload ();
buf += 4; // reserve for length
size_t size = m_Gzip ? m_Deflator.Deflate (payloads, buf, msg->maxLen - msg->len) :
i2p::data::GzipNoCompression (payloads, buf, msg->maxLen - msg->len);
if (m_Gzip && m_Deflator)
size = m_Deflator->Deflate (payloads, buf, msg->maxLen - msg->len);
else
size = i2p::data::GzipNoCompression (payloads, buf, msg->maxLen - msg->len);
if (size)
{
htobe32buf (msg->GetPayload (), size); // length

4
libi2pd/Datagram.h
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2020, The PurpleI2P Project
* Copyright (c) 2013-2021, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@ -164,7 +164,7 @@ namespace datagram
std::map<uint16_t, Receiver> m_ReceiversByPorts;
i2p::data::GzipInflator m_Inflator;
i2p::data::GzipDeflator m_Deflator;
std::unique_ptr<i2p::data::GzipDeflator> m_Deflator;
std::vector<uint8_t> m_From, m_Signature;
i2p::util::MemoryPool<I2NPMessageBuffer<I2NP_MAX_MESSAGE_SIZE> > m_I2NPMsgsPool;
};

14
libi2pd/Streaming.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2020, The PurpleI2P Project
* Copyright (c) 2013-2021, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@ -1040,6 +1040,8 @@ namespace stream
m_Owner (owner), m_LocalPort (localPort), m_Gzip (gzip),
m_PendingIncomingTimer (m_Owner->GetService ())
{
if (m_Gzip)
m_Deflator.reset (new i2p::data::GzipDeflator);
}
StreamingDestination::~StreamingDestination ()
@ -1296,13 +1298,17 @@ namespace stream
std::shared_ptr<I2NPMessage> StreamingDestination::CreateDataMessage (
const uint8_t * payload, size_t len, uint16_t toPort, bool checksum)
{
size_t size;
auto msg = m_I2NPMsgsPool.AcquireShared ();
uint8_t * buf = msg->GetPayload ();
buf += 4; // reserve for lengthlength
msg->len += 4;
size_t size = (!m_Gzip || len <= i2p::stream::COMPRESSION_THRESHOLD_SIZE)?
i2p::data::GzipNoCompression (payload, len, buf, msg->maxLen - msg->len):
m_Deflator.Deflate (payload, len, buf, msg->maxLen - msg->len);
if (m_Gzip && m_Deflator)
size = m_Deflator->Deflate (payload, len, buf, msg->maxLen - msg->len);
else
size = i2p::data::GzipNoCompression (payload, len, buf, msg->maxLen - msg->len);
if (size)
{
htobe32buf (msg->GetPayload (), size); // length

2
libi2pd/Streaming.h
View file

@ -312,7 +312,7 @@ namespace stream
public:
i2p::data::GzipInflator m_Inflator;
i2p::data::GzipDeflator m_Deflator;
std::unique_ptr<i2p::data::GzipDeflator> m_Deflator;
// for HTTP only
const decltype(m_Streams)& GetStreams () const { return m_Streams; };