osci-render/Source/ixwebsocket/IXSocketOpenSSL.h

69 wiersze
2.2 KiB
C++

/*
* IXSocketOpenSSL.h
* Author: Benjamin Sergeant, Matt DeBoer
* Copyright (c) 2017-2020 Machine Zone, Inc. All rights reserved.
*/
#ifdef IXWEBSOCKET_USE_OPEN_SSL
#pragma once
#include "IXCancellationRequest.h"
#include "IXSocket.h"
#include "IXSocketTLSOptions.h"
#include <mutex>
#include <openssl/bio.h>
#include <openssl/conf.h>
#include <openssl/err.h>
#include <openssl/hmac.h>
#include <openssl/ssl.h>
namespace ix
{
class SocketOpenSSL final : public Socket
{
public:
SocketOpenSSL(const SocketTLSOptions& tlsOptions, int fd = -1);
~SocketOpenSSL();
virtual bool accept(std::string& errMsg) final;
virtual bool connect(const std::string& host,
int port,
std::string& errMsg,
const CancellationRequest& isCancellationRequested) final;
virtual void close() final;
virtual ssize_t send(char* buffer, size_t length) final;
virtual ssize_t recv(void* buffer, size_t length) final;
private:
void openSSLInitialize();
std::string getSSLError(int ret);
SSL_CTX* openSSLCreateContext(std::string& errMsg);
bool openSSLAddCARootsFromString(const std::string roots);
bool openSSLClientHandshake(const std::string& hostname,
std::string& errMsg,
const CancellationRequest& isCancellationRequested);
bool openSSLCheckServerCert(SSL* ssl, const std::string& hostname, std::string& errMsg);
bool checkHost(const std::string& host, const char* pattern);
bool handleTLSOptions(std::string& errMsg);
bool openSSLServerHandshake(std::string& errMsg);
// Required for OpenSSL < 1.1
static void openSSLLockingCallback(int mode, int type, const char* /*file*/, int /*line*/);
SSL* _ssl_connection;
SSL_CTX* _ssl_context;
const SSL_METHOD* _ssl_method;
SocketTLSOptions _tlsOptions;
mutable std::mutex _mutex; // OpenSSL routines are not thread-safe
static std::once_flag _openSSLInitFlag;
static std::atomic<bool> _openSSLInitializationSuccessful;
};
} // namespace ix
#endif // IXWEBSOCKET_USE_OPEN_SSL