wangle::TLSPlaintextPeekingCallback Class Reference

#include <TLSPlaintextPeekingCallback.h>

Inheritance diagram for wangle::TLSPlaintextPeekingCallback:

Public Member Functions
	TLSPlaintextPeekingCallback ()
AcceptorHandshakeHelper::UniquePtr	getHelper (const std::vector< uint8_t > &bytes, const folly::SocketAddress &clientAddr, std::chrono::steady_clock::time_point acceptTime, TransportInfo &tinfo) override
Public Member Functions inherited from wangle::PeekingAcceptorHandshakeHelper::PeekCallback
	PeekCallback (size_t bytesRequired)
virtual	~PeekCallback ()=default
size_t	getBytesRequired () const

Private Types
enum	{ kPeekCount = 9 }

Static Private Member Functions
static bool	looksLikeTLS (const std::vector< uint8_t > &peekBytes)

Detailed Description

A peeking callback that makes it convenient to create a server that will accept both TLS and plaintext traffic.

Definition at line 28 of file TLSPlaintextPeekingCallback.h.

Member Enumeration Documentation

anonymous enum

private

Enumerator
kPeekCount

Definition at line 30 of file TLSPlaintextPeekingCallback.h.

{ kPeekCount = 9 };

Constructor & Destructor Documentation

wangle::TLSPlaintextPeekingCallback::TLSPlaintextPeekingCallback ( )

inline

Definition at line 32 of file TLSPlaintextPeekingCallback.h.

References getHelper(), and looksLikeTLS().

                               :
    PeekingAcceptorHandshakeHelper::PeekCallback(kPeekCount) {}

Member Function Documentation

AcceptorHandshakeHelper::UniquePtr wangle::TLSPlaintextPeekingCallback::getHelper ( const std::vector< uint8_t > &  bytes, const folly::SocketAddress &  clientAddr, std::chrono::steady_clock::time_point  acceptTime, TransportInfo &  tinfo  )

overridevirtual

Implements wangle::PeekingAcceptorHandshakeHelper::PeekCallback.

Definition at line 36 of file TLSPlaintextPeekingCallback.cpp.

References looksLikeTLS().

Referenced by TLSPlaintextPeekingCallback().

                    {
  if (!TLSPlaintextPeekingCallback::looksLikeTLS(bytes)) {
    return AcceptorHandshakeHelper::UniquePtr(
        new UnencryptedAcceptorHandshakeHelper());
  }

  return nullptr;
}

bool wangle::TLSPlaintextPeekingCallback::looksLikeTLS ( const std::vector< uint8_t > &  peekBytes )

staticprivate

Definition at line 20 of file TLSPlaintextPeekingCallback.cpp.

References kPeekCount.

Referenced by getHelper(), and TLSPlaintextPeekingCallback().

                                     {
  CHECK_GE(bytes.size(), kPeekCount);
  // TLS starts with
  // 0: 0x16 - handshake magic
  // 1: 0x03 - SSL major version
  // 2: 0x00 to 0x03 - minor version
  // 3-4: Length
  // 5: 0x01 - Handshake type (Client Hello)
  if (bytes[0] != 0x16 || bytes[1] != 0x03 || bytes[5] != 0x01) {
    return false;
  }
  return true;
}

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The documentation for this class was generated from the following files:

• proxygen/wangle/wangle/acceptor/TLSPlaintextPeekingCallback.h
• proxygen/wangle/wangle/acceptor/TLSPlaintextPeekingCallback.cpp