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limit number of headers per HTTP request

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orignal
2026-10-17 19:47:08 -04:00
parent 79ae673da9
commit 872581fae6
2 changed files with 7 additions and 3 deletions
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libi2pd_client/I2PTunnel.cpp
+6 -3
View File
@@ -392,12 +392,14 @@ namespace client
m_InHeader.clear ();
m_InHeader.write ((const char *)buf, len);
std::string line;
int numHeaders = 0;
bool endOfHeader = false;
while (!endOfHeader)
while (!endOfHeader && numHeaders < I2P_TUNNL_MAX_NUM_HTTP_HEADERS)
{
std::getline(m_InHeader, line);
if (!m_InHeader.fail ())
{
numHeaders++;
if (line == "\r") endOfHeader = true;
else
{
@@ -418,7 +420,7 @@ namespace client
m_ProxyConnectionSent = true;
}
else
m_OutHeader << line << "\n";
m_OutHeader << line << "\n";
}
}
else
@@ -446,11 +448,12 @@ namespace client
m_HeaderSent = true;
I2PTunnelConnection::Write ((uint8_t *)m_OutHeader.str ().c_str (), m_OutHeader.str ().length ());
}
else if (m_OutHeader.tellp () < I2P_TUNNEL_HTTP_MAX_HEADER_SIZE)
else if (m_OutHeader.tellp () < I2P_TUNNEL_HTTP_MAX_HEADER_SIZE && m_InHeader.tellp () < I2P_TUNNEL_HTTP_MAX_HEADER_SIZE)
StreamReceive (); // read more header
else
{
LogPrint (eLogError, "I2PTunnel: HTTP header exceeds max size ", I2P_TUNNEL_HTTP_MAX_HEADER_SIZE);
m_InHeader.str (""); m_OutHeader.str ("");
Terminate ();
}
}
libi2pd_client/I2PTunnel.h
+1
View File
@@ -39,6 +39,7 @@ namespace client
constexpr std::string_view X_I2P_DEST_B64 { "X-I2P-DestB64" }; // full address in base64
constexpr std::string_view X_I2P_DEST_B32 { "X-I2P-DestB32" }; // .b32.i2p address
constexpr int I2P_TUNNEL_HTTP_MAX_HEADER_SIZE = 8192;
constexpr int I2P_TUNNL_MAX_NUM_HTTP_HEADERS = 100;
class I2PTunnelConnection: public I2PServiceHandler, public std::enable_shared_from_this<I2PTunnelConnection>
{