text: /*
  *    Copyright (c) <2002-2009> <Jean-Philippe Barrette-LaPierre>
  *    
  *    Permission is hereby granted, free of charge, to any person obtaining
  *    a copy of this software and associated documentation files 
  *    (curlpp), to deal in the Software without restriction, 
  *    including without limitation the rights to use, copy, modify, merge,
  *    publish, distribute, sublicense, and/or sell copies of the Software,
  *    and to permit persons to whom the Software is furnished to do so, 
  *    subject to the following conditions:
  *    
  *    The above copyright notice and this permission notice shall be included
  *    in all copies or substantial portions of the Software.
  *    
  *    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  *    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  *    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
  *    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 
  *    CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
  *    TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  *    SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
  
  #include "curlpp/internal/CurlHandle.hpp"
  
  #include "curlpp/cURLpp.hpp"
  #include "curlpp/Exception.hpp"
  
  #include <string>
  #include <iostream>
  #include <memory>
  #include <cstring>
  
  
  using std::memset;
  using std::unique_ptr;
  
  
  namespace curlpp
  {
  
  
  namespace internal
  {
  
  
  void CurlHandle::perform()
  {
  	CURLcode code;
  
  	code = curl_easy_perform(mCurl);
  	throwException();
  	libcurlRuntimeAssert(mErrorBuffer, code); //if we got an error
  }
  
  
  void CurlHandle::reset()
  {
  	curl_easy_reset(mCurl);
  	memset(mErrorBuffer,0,CURL_ERROR_SIZE + 1);
  	errorBuffer(mErrorBuffer);
  }
  
  
  CURL * CurlHandle::getHandle() const
  {
  	return mCurl;
  }
  
  
  CurlHandle::CurlHandle() 
  	: mException(nullptr)
  {
  	memset(mErrorBuffer,0,CURL_ERROR_SIZE + 1);
  	mCurl = curl_easy_init();
  	runtimeAssert("Error when trying to curl_easy_init() a handle", mCurl != nullptr);
  	errorBuffer(mErrorBuffer);
  }
  
  
  CurlHandle::CurlHandle(CURL * handle) 
  	: mException(nullptr)
  {
  	memset(mErrorBuffer,0,CURL_ERROR_SIZE + 1);
  	mCurl = handle;
  	runtimeAssert("Error when trying to curl_easy_init() a handle", mCurl != nullptr);
  	errorBuffer(mErrorBuffer);
  }
  
  
  std::unique_ptr<CurlHandle> 
  CurlHandle::clone() const
  {
  	CURL * cHandle = curl_easy_duphandle(mCurl);
  	runtimeAssert("Error when trying to curl_easy_duphandle() a handle", cHandle != nullptr);
  	unique_ptr<CurlHandle> newHandle(new CurlHandle(cHandle));
  
  	return newHandle;
  }
  
  
  CurlHandle::~CurlHandle()
  {
  	if (mException)
  	{
  		delete mException;
  		mException = nullptr;
  	}
  	curl_easy_cleanup(mCurl);
  }
  
  void
  CurlHandle::setException(curlpp::CallbackExceptionBase * e) 
  {
  	if(mException)
  	{
  		delete mException;
  	}
  
  	mException = e;
  }
  
  void
  CurlHandle::errorBuffer(char * buffer)
  {
  	option(CURLOPT_ERRORBUFFER, (void *)buffer);
  }
  
  
  template<typename FunctorType>
  typename FunctorType::ResultType 
  CurlHandle::execute(FunctorType functor, typename FunctorType::ParamList params)
  {
  	if (!functor)
  	{
  	 	setException(new CallbackException<curlpp::LogicError>(curlpp::LogicError("Null functor")));
  		return CURLE_ABORTED_BY_CALLBACK;
  	}
  
  	try
  	{
  		return functor(params);
  	}
  
  	catch(curlpp::CallbackExceptionBase * e)
  	{
  		setException(e);
  	}
  
  	catch(...)
  	{
  		setException(new CallbackException<curlpp::UnknowException>(curlpp::UnknowException()));
  	}
  
  	return CURLE_ABORTED_BY_CALLBACK;
  }
  
  
  size_t 
  CurlHandle::executeWriteFunctor(char * buffer, size_t size, size_t nitems)
  {
  	if (!mWriteFunctor)
  	{
  		setException(new CallbackException<curlpp::LogicError>(curlpp::LogicError("Null write functor")));
  		return CURLE_ABORTED_BY_CALLBACK;
  	}
  
  	try
  	{
  		return mWriteFunctor(buffer, size, nitems);
  	}
  
  	catch(curlpp::CallbackExceptionBase * e)
  	{
  		setException(e);
  	}
  
  	catch(...)
  	{
  		setException(new CallbackException<curlpp::UnknowException>(curlpp::UnknowException()));
  	}
  
  	return CURLE_ABORTED_BY_CALLBACK;
  }
  
  
  size_t 
  CurlHandle::executeHeaderFunctor(char * buffer, size_t size, size_t nitems)
  {
  	if (!mHeaderFunctor)
  	{
  		setException(new CallbackException<curlpp::LogicError>(curlpp::LogicError("Null write functor")));
  		return CURLE_ABORTED_BY_CALLBACK;
  	}
  
  	try
  	{
  		return mHeaderFunctor(buffer, size, nitems);
  	}
  
  	catch(curlpp::CallbackExceptionBase * e)
  	{
  		setException(e);
  	}
  
  	catch(...)
  	{
  		setException(new CallbackException<curlpp::UnknowException>(curlpp::UnknowException()));
  	}
  
  	return CURLE_ABORTED_BY_CALLBACK;
  }
  
  
  size_t 
  CurlHandle::executeReadFunctor(char * buffer, size_t size, size_t nitems)
  {
  	if(!mReadFunctor)
  	{
  		setException(new CallbackException<curlpp::LogicError>(curlpp::LogicError("Null write functor")));
  		return CURLE_ABORTED_BY_CALLBACK;
  	}
  
  	try
  	{
  		return mReadFunctor(buffer, size, nitems);
  	}
  
  	catch(curlpp::CallbackExceptionBase * e)
  	{
  		setException(e);
  	}
  
  	catch(...)
  	{
  		setException(new CallbackException<curlpp::UnknowException>(curlpp::UnknowException()));
  	}
  
  	return CURLE_ABORTED_BY_CALLBACK;
  }
  
  
  int
  CurlHandle::executeProgressFunctor(double dltotal, 
  																	 double dlnow, 
  																	 double ultotal, 
  																	 double ulnow)
  {
  	if (!mProgressFunctor)
  	{
  		setException(new CallbackException<curlpp::LogicError>(curlpp::LogicError("Null write functor")));
  		return CURLE_ABORTED_BY_CALLBACK;
  	}
  
  	try
  	{
  		return mProgressFunctor(dltotal, dlnow, ultotal, ulnow);
  	}
  
  	catch(curlpp::CallbackExceptionBase * e)
  	{
  		setException(e);
  	}
  
  	catch(...)
  	{
  		setException(new CallbackException<curlpp::UnknowException>(curlpp::UnknowException()));
  	}
  
  	return CURLE_ABORTED_BY_CALLBACK;
  }
  
  
  int 
  CurlHandle::executeDebugFunctor(curl_infotype info, char * buffer, size_t size)
  {
  	if (!mDebugFunctor)
  	{
  		setException(new CallbackException<curlpp::LogicError>(curlpp::LogicError("Null write functor")));
  		return CURLE_ABORTED_BY_CALLBACK;
  	}
  
  	try
  	{
  		return mDebugFunctor(info, buffer, size);
  	}
  
  	catch(curlpp::CallbackExceptionBase * e)
  	{
  		setException(e);
  	}
  
  	catch(...)
  	{
  		setException(new CallbackException<curlpp::UnknowException>(curlpp::UnknowException()));
  	}
  
  	return CURLE_ABORTED_BY_CALLBACK;
  }
  
  
  CURLcode 
  CurlHandle::executeSslCtxFunctor(void * ssl_ctx)
  {
  	if (!mSslFunctor)
  	{
  		setException(new CallbackException<curlpp::LogicError>(curlpp::LogicError("Null write functor")));
  		return CURLE_ABORTED_BY_CALLBACK;
  	}
  
  	try
  	{
  		return mSslFunctor(ssl_ctx);
  	}
  
  	catch(curlpp::CallbackExceptionBase * e)
  	{
  		setException(e);
  	}
  
  	catch(...)
  	{
  		setException(new CallbackException<curlpp::UnknowException>(curlpp::UnknowException()));
  	}
  
  	return CURLE_ABORTED_BY_CALLBACK;
  }
  
  
  void
  CurlHandle::throwException()
  {
    if(mException) 
    {
      std::unique_ptr< cURLpp::CallbackExceptionBase > e(mException);
      mException = nullptr;
      e->throwMe();
    }
  }
  
  
  } // namespace internal
  
  
  } // namespace curlpp
  