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#include "httpload.h"
#include "http_digest.h"
/************************************************************/
#ifdef USE_GNUTLS
#include <gcrypt.h>
#include <gnutls/gnutls.h>
#include <util/network/init.h>
#include <util/network/socket.h>
#include <util/system/mutex.h>
/********************************************************/
// HTTPS handler is used as implementation of
// socketAbstractHandler for work through HTTPS protocol
class socketSecureHandler: public socketRegularHandler {
protected:
bool IsValid_;
gnutls_session Session_;
gnutls_certificate_credentials Credits_;
public:
socketSecureHandler();
virtual ~socketSecureHandler();
virtual bool Good();
virtual int Connect(const TAddrList& addrs, TDuration Timeout);
virtual void Disconnect();
virtual void shutdown();
virtual bool send(const char* message, ssize_t messlen);
virtual bool peek();
virtual ssize_t read(void* buffer, ssize_t buflen);
};
/********************************************************/
/********************************************************/
static int gcry_pthread_mutex_init(void** priv) {
int err = 0;
try {
TMutex* lock = new TMutex;
*priv = lock;
} catch (...) {
err = -1;
}
return err;
}
static int gcry_pthread_mutex_destroy(void** lock) {
delete static_cast<TMutex*>(*lock);
return 0;
}
static int gcry_pthread_mutex_lock(void** lock) {
static_cast<TMutex*>(*lock)->Acquire();
return 0;
}
static int gcry_pthread_mutex_unlock(void** lock) {
static_cast<TMutex*>(*lock)->Release();
return 0;
}
static struct gcry_thread_cbs gcry_threads_pthread =
{
GCRY_THREAD_OPTION_PTHREAD, NULL,
gcry_pthread_mutex_init, gcry_pthread_mutex_destroy,
gcry_pthread_mutex_lock, gcry_pthread_mutex_unlock,
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL};
/********************************************************/
struct https_initor {
https_initor() {
gcry_control(GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread);
gnutls_global_init();
InitNetworkSubSystem();
}
~https_initor() {
gnutls_global_deinit();
}
};
static https_initor _initor;
/********************************************************/
socketSecureHandler::socketSecureHandler()
: socketRegularHandler()
, IsValid_(false)
, Session_()
, Credits_()
{
}
/********************************************************/
socketSecureHandler::~socketSecureHandler() {
if (IsValid_)
Disconnect();
}
/********************************************************/
bool socketSecureHandler::Good() {
return Socket_.Good() && IsValid_;
}
/********************************************************/
int socketSecureHandler::Connect(const TAddrList& addrs, TDuration Timeout) {
IsValid_ = false;
int ret = socketRegularHandler::Connect(addrs, Timeout);
if (ret)
return ret;
gnutls_certificate_allocate_credentials(&Credits_);
gnutls_init(&Session_, GNUTLS_CLIENT);
gnutls_set_default_priority(Session_);
gnutls_credentials_set(Session_, GNUTLS_CRD_CERTIFICATE, Credits_);
SOCKET fd = Socket_;
gnutls_transport_set_ptr(Session_, (gnutls_transport_ptr)fd);
ret = gnutls_handshake(Session_);
if (ret < 0) {
fprintf(stderr, "*** Handshake failed\n");
gnutls_perror(ret);
gnutls_deinit(Session_);
if (Credits_) {
gnutls_certificate_free_credentials(Credits_);
Credits_ = 0;
}
return 1;
}
IsValid_ = true;
return !IsValid_;
}
/********************************************************/
void socketSecureHandler::Disconnect() {
if (IsValid_) {
gnutls_bye(Session_, GNUTLS_SHUT_RDWR);
IsValid_ = false;
gnutls_deinit(Session_);
}
if (Credits_) {
gnutls_certificate_free_credentials(Credits_);
Credits_ = 0;
}
socketRegularHandler::Disconnect();
}
/********************************************************/
void socketSecureHandler::shutdown() {
}
/********************************************************/
bool socketSecureHandler::send(const char* message, ssize_t messlen) {
if (!IsValid_)
return false;
ssize_t rv = gnutls_record_send(Session_, message, messlen);
return rv >= 0;
}
/********************************************************/
bool socketSecureHandler::peek() {
//ssize_t rv = gnutls_record_check_pending(mSession);
//return rv>0;
return true;
}
/********************************************************/
ssize_t socketSecureHandler::read(void* buffer, ssize_t buflen) {
if (!IsValid_)
return false;
return gnutls_record_recv(Session_, (char*)buffer, buflen);
}
#endif
/************************************************************/
socketAbstractHandler* socketHandlerFactory::chooseHandler(const THttpURL& url) {
if (url.IsValidGlobal() && url.GetScheme() == THttpURL::SchemeHTTP)
return new socketRegularHandler;
#ifdef USE_GNUTLS
if (url.IsValidGlobal() && url.GetScheme() == THttpURL::SchemeHTTPS)
return new socketSecureHandler;
#endif
return nullptr;
}
/************************************************************/
socketHandlerFactory socketHandlerFactory::sInstance;
/************************************************************/
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