bundles/org.eclipse.core.net/natives/win32/jWinHttp.cpp - platform/eclipse.platform.team - Git at Google

 /*******************************************************************************
  * Copyright (c) 2008 compeople AG and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *    compeople AG (Stefan Liebig) - initial API and implementation
  *******************************************************************************/


 #if _MSC_VER > 1000
 #pragma once
 #endif // _MSC_VER > 1000


 #define WIN32_LEAN_AND_MEAN

 #include <stdio.h>
 #include <iostream>
 #include <windows.h>
 #include <winhttp.h>
 #include <objbase.h>

 #include "jWinHttp.h"

 using namespace std;

 // Remember the GetLastError() after a failed WinHttp... call.
 static int lastError;

 BOOL APIENTRY DllMain( HANDLE hModule,
                        DWORD  ul_reason_for_call,
                        LPVOID lpReserved
 					 ) {
     switch (ul_reason_for_call) {
 		case DLL_PROCESS_ATTACH:
 			#ifdef _DEBUG
 				cout << "DLL_PROCESS_ATTACH - jWinHttp" << endl;
 			#endif
 			break;
 		case DLL_THREAD_ATTACH:
 			#ifdef _DEBUG
 				cout << "DLL_THREAD_ATTACH - jWinHttp" << endl;
 			#endif
 			break;
 		case DLL_THREAD_DETACH:
 			#ifdef _DEBUG
 				cout << "DLL_THREAD_DETACH - jWinHttp" << endl;
 			#endif
 			break;
 		case DLL_PROCESS_DETACH:
 			#ifdef _DEBUG
 				cout << "DLL_PROCESS_DETACH - jWinHttp" << endl;
 			#endif
 			break;
     }
     return TRUE;
 }


 /*
  * Helper for some ugly things!
  * ............................
  */

 const jchar * getStringChars( JNIEnv * env, jstring jString ) {
 	if ( jString != NULL ) {
 		return env->GetStringChars( jString, NULL );
 	} else {
 		return NULL;
 	}
 }

 void releaseStringChars( JNIEnv * env, jstring jString, const jchar * jCharString ) {
 	if ( jString != NULL ) {
 		env->ReleaseStringChars( jString, jCharString );
 	}
 }

 jobject newString( JNIEnv * env, LPWSTR string ) {
 	return env->NewString( (const jchar *)string, lstrlenW( string ) );
 }

 void setStringField( JNIEnv * env, jclass jClass, jobject jObject, const char * field, LPWSTR value ) {
 	if ( value != NULL ) {
 		jfieldID jFieldId = env->GetFieldID( jClass, field, "Ljava/lang/String;" );
 		env->SetObjectField( jObject, jFieldId, newString( env, value ) );
 		GlobalFree( value );
 	}
 }

 jstring getStringField( JNIEnv * env, jclass jClass, jobject jObject, const char * field ) {
 	jfieldID jFieldId = env->GetFieldID( jClass, field, "Ljava/lang/String;" );
 	return (jstring)env->GetObjectField( jObject, jFieldId );
 }

 void setBooleanField( JNIEnv * env, jclass jClass, jobject jObject, const char * field, BOOL value ) {
 	jfieldID jFieldId = env->GetFieldID( jClass, field, "Z" );
 	env->SetBooleanField( jObject, jFieldId, value );
 }

 jboolean getBooleanField( JNIEnv * env, jclass jClass, jobject jObject, const char * field ) {
 	jfieldID jFieldId = env->GetFieldID( jClass, field, "Z" );
 	return env->GetBooleanField( jObject, jFieldId );
 }

 void setIntField( JNIEnv * env, jclass jClass, jobject jObject, const char * field, jint value ) {
 	jfieldID jFieldId = env->GetFieldID( jClass, field, "I" );
 	env->SetIntField( jObject, jFieldId, value );
 }

 jint getIntField( JNIEnv * env, jclass jClass, jobject jObject, const char * field ) {
 	jfieldID jFieldId = env->GetFieldID( jClass, field, "I" );
 	return env->GetIntField( jObject, jFieldId );
 }

 #ifdef _DEBUG
 	LPCWSTR null( const LPCWSTR string ) {
 		if ( string == NULL ) {
 			return (LPCWSTR) L"null";
 		} else {
 			return string;
 		}
 	}

 	LPWSTR null( const LPWSTR string ) {
 		if ( string == NULL ) {
 			return (LPWSTR) L"null";
 		} else {
 			return string;
 		}
 	}
 #endif

 /*
  * The real ugly work goes on here!
  * ................................
  */


 /*
  * Class:     org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp
  * Method:    open
  * Signature: (Ljava/lang/String;ILjava/lang/String;Ljava/lang/String;I)I
  */
 JNIEXPORT jint JNICALL Java_org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp_open
   (JNIEnv * env, jclass jClass, jstring jUserAgent, jint jAccessType, jstring jProxyName, jstring jProxyBypass, jint jFlags ) {

 	#ifdef _DEBUG
 		cout << "WinHttp_open - entered" << endl;
 	#endif

 	const jchar * userAgent = (const jchar *) L"jWinHttp Java Wrapper";
 	const jchar * proxyName = NULL;
 	const jchar * proxyBypass = NULL;

 	userAgent = getStringChars( env, jUserAgent );
 	proxyName = getStringChars( env, jProxyName );
 	proxyBypass = getStringChars( env, jProxyBypass );

 	CoInitialize( NULL );    // --> http://support.microsoft.com/?kbid=834742

 	int hInternet = (int) WinHttpOpen( (LPCWSTR)userAgent, jAccessType, (LPCWSTR)proxyName, (LPCWSTR)proxyBypass, jFlags );

 	if ( hInternet == NULL ) {
 		lastError = GetLastError();
 		#ifdef _DEBUG
 			cout << "WinHttpOpen() failed with " << lastError << endl;
 		#endif
 	} else {
 		lastError = 0;
 	}


 	#ifdef _DEBUG
 		cout << "WinHttpOpen() returned: " << hInternet << endl;
 	#endif


 	releaseStringChars( env, jUserAgent, userAgent );
 	releaseStringChars( env, jProxyName, proxyName );
 	releaseStringChars( env, jProxyBypass, proxyBypass );

 	#ifdef _DEBUG
 		cout << "WinHttp_open - exit" << endl;
 	#endif

 	return hInternet;
 }

 /*
  * Class:     org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp
  * Method:    closeHandle
  * Signature: (I)Z
  */
 JNIEXPORT jboolean JNICALL Java_org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp_closeHandle
   (JNIEnv * env, jclass jClass, jint jInternet) {

 	#ifdef _DEBUG
 		cout << "WinHttp_closeHandle - entered" << endl;
 	#endif

 	BOOL ok = WinHttpCloseHandle( (void *) jInternet );

 	if ( ! ok ) {
 		lastError = GetLastError();
 		#ifdef _DEBUG
 			cout << "WinHttpClose() failed with " << lastError << endl;
 		#endif
 	} else {
 		lastError = 0;
 	}

 	CoUninitialize();

 	#ifdef _DEBUG
 		cout << "WinHttp_closeHandle - exit" << endl;
 	#endif

 	return ok;
 }

 /*
  * Class:     org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp
  * Method:    getIEProxyConfigForCurrentUser
  * Signature: (Lorg/eclipse/core/internal/net/proxy/win32/winhttp/WinHttpCurrentUserIEProxyConfig;)Z
  */
 JNIEXPORT jboolean JNICALL Java_org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp_getIEProxyConfigForCurrentUser
   (JNIEnv * env, jclass jClass, jobject jWinHttpCurrentUserIEProxyConfig)  {

 	#ifdef _DEBUG
 		cout << "WinHttp_getIEProxyConfigForCurrentUser - entered" << endl;
 	#endif

 	WINHTTP_CURRENT_USER_IE_PROXY_CONFIG proxyConfig;
 	ZeroMemory( &proxyConfig, sizeof( proxyConfig ) );

 	BOOL ok = WinHttpGetIEProxyConfigForCurrentUser( &proxyConfig );

 	if ( ! ok ) {
 		lastError = GetLastError();
 		#ifdef _DEBUG
 			cout << "HttpGetIEProxyConfigForCurrentUser() failed with " << lastError << endl;
 		#endif
 	}

 	if ( ok ) {

 		#ifdef _DEBUG
 			cout << "proxyConfig.fAutoDetect: " << proxyConfig.fAutoDetect << endl;
 			wcout << L"proxyConfig.lpszProxy: " << null( proxyConfig.lpszProxy ) << endl;
 			wcout << L"proxyConfig.lpszProxyBypass: " << null( proxyConfig.lpszProxyBypass ) << endl;
 		#endif

 		lastError = 0;
 		jclass jWinHttpCurrentUserIEProxyConfigClass = env->GetObjectClass( jWinHttpCurrentUserIEProxyConfig );
 		setBooleanField( env,jWinHttpCurrentUserIEProxyConfigClass, jWinHttpCurrentUserIEProxyConfig, "isAutoDetect", proxyConfig.fAutoDetect );
 		setStringField( env, jWinHttpCurrentUserIEProxyConfigClass, jWinHttpCurrentUserIEProxyConfig, "autoConfigUrl", proxyConfig.lpszAutoConfigUrl );
 		setStringField( env, jWinHttpCurrentUserIEProxyConfigClass, jWinHttpCurrentUserIEProxyConfig, "proxy", proxyConfig.lpszProxy );
 		setStringField( env, jWinHttpCurrentUserIEProxyConfigClass, jWinHttpCurrentUserIEProxyConfig, "proxyBypass", proxyConfig.lpszProxyBypass );
 	}


 	#ifdef _DEBUG
 		cout << "WinHttp_getIEProxyConfigForCurrentUser - exit" << endl;
 	#endif

 	return ok;
 }

 /*
  * Class:     org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp
  * Method:    getProxyForUrl
  * Signature: (ILjava/lang/String;Lorg/eclipse/core/internal/net/proxy/win32/winhttp/WinHttpAutoProxyOptions;Lorg/eclipse/core/internal/net/proxy/win32/winhttp/WinHttpProxyInfo;)Z
  */
 JNIEXPORT jboolean JNICALL Java_org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp_getProxyForUrl
   (JNIEnv * env, jclass jClass, jint jInternet, jstring jUrl, jobject jWinHttpAutoProxyOptions, jobject jWinHttpProxyInfo )  {

 	#ifdef _DEBUG
 		cout << "WinHttp_getProxyForUrl - entered" << endl;
 	#endif

 	WINHTTP_AUTOPROXY_OPTIONS autoProxyOptions;
 	ZeroMemory( &autoProxyOptions, sizeof( autoProxyOptions ) );

 	jclass jWinHttpAutoProxyOptionsClass = env->GetObjectClass( jWinHttpAutoProxyOptions );

 	autoProxyOptions.dwFlags = getIntField( env, jWinHttpAutoProxyOptionsClass, jWinHttpAutoProxyOptions, "flags" );
 	autoProxyOptions.dwAutoDetectFlags = getIntField( env, jWinHttpAutoProxyOptionsClass, jWinHttpAutoProxyOptions, "autoDetectFlags" );
 	jstring jAutoConfigUrl = getStringField( env, jWinHttpAutoProxyOptionsClass, jWinHttpAutoProxyOptions, "autoConfigUrl" );
 	autoProxyOptions.lpszAutoConfigUrl = (LPCWSTR)getStringChars( env, jAutoConfigUrl );

 	// The ´reserved´ fields will not be transfered!
 	// - String reservedPointer
 	// - int reservedInt

 	autoProxyOptions.fAutoLogonIfChallenged = getBooleanField( env, jWinHttpAutoProxyOptionsClass, jWinHttpAutoProxyOptions, "autoLogonIfChallenged" );

 	#ifdef _DEBUG
 		cout << "autoProxyOptions.dwFlags: " << autoProxyOptions.dwFlags << endl;
 		cout << "autoProxyOptions.dwAutoDetectFlags: " << autoProxyOptions.dwAutoDetectFlags << endl;
 		wcout << L"autoProxyOptions.lpszAutoConfigUrl: " << null( autoProxyOptions.lpszAutoConfigUrl ) << endl;
 		cout << "autoProxyOptions.fAutoLogonIfChallenged: " << autoProxyOptions.fAutoLogonIfChallenged << endl;
 	#endif

 	WINHTTP_PROXY_INFO proxyInfo;
 	ZeroMemory( &proxyInfo, sizeof( proxyInfo ) );

 	const jchar * url = getStringChars( env, jUrl );

 	BOOL ok = WinHttpGetProxyForUrl( (void *)jInternet, (LPCWSTR)url, &autoProxyOptions, &proxyInfo );

 	if ( ! ok ) {
 		lastError = GetLastError();
 		#ifdef _DEBUG
 			cout << "WinHttpGetProxyForUrl() failed with " << lastError << endl;
 		#endif
 	}

 	releaseStringChars( env, jUrl, url );
 	releaseStringChars( env, jAutoConfigUrl, (const jchar *)autoProxyOptions.lpszAutoConfigUrl );

 	if ( ok ) {
 		lastError = 0;
 		jclass jWinHttpProxyInfoClass = env->GetObjectClass( jWinHttpProxyInfo );

 		#ifdef _DEBUG
 			cout << "proxyInfo.dwAccessType: " << proxyInfo.dwAccessType << endl;
 			wcout << L"proxyInfo.lpszProxy: " << null( proxyInfo.lpszProxy ) << endl;
 			wcout << L"proxyInfo.lpszProxyBypass: " << null( proxyInfo.lpszProxyBypass ) << endl;
 		#endif

 		setIntField( env, jWinHttpProxyInfoClass, jWinHttpProxyInfo, "accessType", proxyInfo.dwAccessType );
 		setStringField( env, jWinHttpProxyInfoClass, jWinHttpProxyInfo, "proxy", proxyInfo.lpszProxy );
 		setStringField( env, jWinHttpProxyInfoClass, jWinHttpProxyInfo, "proxyBypass", proxyInfo.lpszProxyBypass );
 	}

 	#ifdef _DEBUG
 		cout << "WinHttp_getProxyForUrl - exit" << endl;
 	#endif

 	return ok;
 }

 /*
  * Class:     org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp
  * Method:    detectAutoProxyConfigUrl
  * Signature: (Lorg/eclipse/core/internal/net/proxy/win32/winhttp/AutoProxyHolder;)Z
  */
 JNIEXPORT jboolean JNICALL Java_org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp_detectAutoProxyConfigUrl
   (JNIEnv * env, jclass jClass, jobject jAutoProxyHolder) {

 	#ifdef _DEBUG
 		cout << "WinHttp_detectAutoProxyConfigUrl - entered" << endl;
 	#endif

 	jclass jAutoProxyHolderClass = env->GetObjectClass( jAutoProxyHolder );
 	DWORD dwAutoDetectFlags = getIntField( env, jAutoProxyHolderClass, jAutoProxyHolder, "autoDetectFlags" );

 	#ifdef _DEBUG
 		cout << "autoProxyHolder.autoDetectFlags: " << dwAutoDetectFlags << endl;
 	#endif

 	LPWSTR pwszAutoConfigUrl;

 	BOOL ok = WinHttpDetectAutoProxyConfigUrl( dwAutoDetectFlags, &pwszAutoConfigUrl );

 	if ( ! ok ) {
 		lastError = GetLastError();
 		#ifdef _DEBUG
 			cout << "WinHttpDetectAutoProxyConfigUrl() failed with " << lastError << endl;
 		#endif
 	}

 	if ( ok ) {
 		lastError = 0;

 		#ifdef _DEBUG
 			wcout << L"autoConfigUrl: " << null( pwszAutoConfigUrl ) << endl;
 		#endif

 		setStringField( env, jAutoProxyHolderClass, jAutoProxyHolder, "autoConfigUrl", pwszAutoConfigUrl );
 	}

 	#ifdef _DEBUG
 		cout << "WinHttp_detectAutoProxyConfigUrl - exit" << endl;
 	#endif

 	return ok;
 }


 /*
  * Class:     org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp
  * Method:    getLastError
  * Signature: ()I
  */
 JNIEXPORT jint JNICALL Java_org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp_getLastError
   (JNIEnv * env, jclass jClass) {

 	#ifdef _DEBUG
 		cout << "WinHttp_getLastError - entered" << endl;
 	#endif

 	#ifdef _DEBUG
 		cout << "WinHttp_getLastError - exit" << endl;
 	#endif

 	return lastError;
 }

 /*
  * Class:     org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp
  * Method:    getLastErrorMessage
  * Signature: ()Ljava/lang/String;
  */
 JNIEXPORT jstring JNICALL Java_org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp_getLastErrorMessage
   (JNIEnv * env, jclass jClass) {

 	#ifdef _DEBUG
 		cout << "WinHttp_getLastErrorMessage - entered" << endl;
 	#endif

 	LPVOID lpMsgBuf = NULL;
 	DWORD result = 0;

 	if ( lastError >= WINHTTP_ERROR_BASE && lastError <= WINHTTP_ERROR_LAST ) {
 		HMODULE hModule = GetModuleHandle( "winhttp.dll" );

 		if ( hModule == NULL ) {
 			lpMsgBuf = "Could not retrieve error message, because ´GetModuleHandle( \"winhttp.dll\" )´ failed.";
 		} else {
 			result = FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER |
 									FORMAT_MESSAGE_FROM_HMODULE |
 									FORMAT_MESSAGE_IGNORE_INSERTS,
 									hModule,
 									lastError,
 									MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language
 					 				(LPTSTR) &lpMsgBuf,
 									0,
 									NULL );
 		}

 	} else {
 		result = FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER |
 								FORMAT_MESSAGE_FROM_SYSTEM |
 								FORMAT_MESSAGE_IGNORE_INSERTS,
 								NULL,
 								lastError,
 								MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language
 					 			(LPTSTR) &lpMsgBuf,
 								0,
 								NULL );
 	}

 	if ( lpMsgBuf == NULL ) {
 		#ifdef _DEBUG
 			cout << "WinHttp_getLastErrorMessage() failed with " << GetLastError() << " for error code " << lastError << endl;
 		#endif

 		lpMsgBuf = "Could not retrieve error message.";
 	}

 	jstring string = env->NewStringUTF( (char *) lpMsgBuf );

 	if ( result > 0 ) {
 		// Free dynamically allocated buffer
 		LocalFree( lpMsgBuf );
 	}

 	#ifdef _DEBUG
 		cout << "WinHttp_getLastErrorMessage - exit" << endl;
 	#endif

 	return string;
 }
	/*******************************************************************************
	* Copyright (c) 2008 compeople AG and others.
	*
	* This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* compeople AG (Stefan Liebig) - initial API and implementation
	*******************************************************************************/


	#if _MSC_VER > 1000
	#pragma once
	#endif // _MSC_VER > 1000


	#define WIN32_LEAN_AND_MEAN

	#include <stdio.h>
	#include <iostream>
	#include <windows.h>
	#include <winhttp.h>
	#include <objbase.h>

	#include "jWinHttp.h"

	using namespace std;

	// Remember the GetLastError() after a failed WinHttp... call.
	static int lastError;

	BOOL APIENTRY DllMain( HANDLE hModule,
	DWORD ul_reason_for_call,
	LPVOID lpReserved
	) {
	switch (ul_reason_for_call) {
	case DLL_PROCESS_ATTACH:
	#ifdef _DEBUG
	cout << "DLL_PROCESS_ATTACH - jWinHttp" << endl;
	#endif
	break;
	case DLL_THREAD_ATTACH:
	#ifdef _DEBUG
	cout << "DLL_THREAD_ATTACH - jWinHttp" << endl;
	#endif
	break;
	case DLL_THREAD_DETACH:
	#ifdef _DEBUG
	cout << "DLL_THREAD_DETACH - jWinHttp" << endl;
	#endif
	break;
	case DLL_PROCESS_DETACH:
	#ifdef _DEBUG
	cout << "DLL_PROCESS_DETACH - jWinHttp" << endl;
	#endif
	break;
	}
	return TRUE;
	}


	/*
	* Helper for some ugly things!
	* ............................
	*/

	const jchar * getStringChars( JNIEnv * env, jstring jString ) {
	if ( jString != NULL ) {
	return env->GetStringChars( jString, NULL );
	} else {
	return NULL;
	}
	}

	void releaseStringChars( JNIEnv * env, jstring jString, const jchar * jCharString ) {
	if ( jString != NULL ) {
	env->ReleaseStringChars( jString, jCharString );
	}
	}

	jobject newString( JNIEnv * env, LPWSTR string ) {
	return env->NewString( (const jchar *)string, lstrlenW( string ) );
	}

	void setStringField( JNIEnv * env, jclass jClass, jobject jObject, const char * field, LPWSTR value ) {
	if ( value != NULL ) {
	jfieldID jFieldId = env->GetFieldID( jClass, field, "Ljava/lang/String;" );
	env->SetObjectField( jObject, jFieldId, newString( env, value ) );
	GlobalFree( value );
	}
	}

	jstring getStringField( JNIEnv * env, jclass jClass, jobject jObject, const char * field ) {
	jfieldID jFieldId = env->GetFieldID( jClass, field, "Ljava/lang/String;" );
	return (jstring)env->GetObjectField( jObject, jFieldId );
	}

	void setBooleanField( JNIEnv * env, jclass jClass, jobject jObject, const char * field, BOOL value ) {
	jfieldID jFieldId = env->GetFieldID( jClass, field, "Z" );
	env->SetBooleanField( jObject, jFieldId, value );
	}

	jboolean getBooleanField( JNIEnv * env, jclass jClass, jobject jObject, const char * field ) {
	jfieldID jFieldId = env->GetFieldID( jClass, field, "Z" );
	return env->GetBooleanField( jObject, jFieldId );
	}

	void setIntField( JNIEnv * env, jclass jClass, jobject jObject, const char * field, jint value ) {
	jfieldID jFieldId = env->GetFieldID( jClass, field, "I" );
	env->SetIntField( jObject, jFieldId, value );
	}

	jint getIntField( JNIEnv * env, jclass jClass, jobject jObject, const char * field ) {
	jfieldID jFieldId = env->GetFieldID( jClass, field, "I" );
	return env->GetIntField( jObject, jFieldId );
	}

	#ifdef _DEBUG
	LPCWSTR null( const LPCWSTR string ) {
	if ( string == NULL ) {
	return (LPCWSTR) L"null";
	} else {
	return string;
	}
	}

	LPWSTR null( const LPWSTR string ) {
	if ( string == NULL ) {
	return (LPWSTR) L"null";
	} else {
	return string;
	}
	}
	#endif

	/*
	* The real ugly work goes on here!
	* ................................
	*/


	/*
	* Class: org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp
	* Method: open
	* Signature: (Ljava/lang/String;ILjava/lang/String;Ljava/lang/String;I)I
	*/
	JNIEXPORT jint JNICALL Java_org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp_open
	(JNIEnv * env, jclass jClass, jstring jUserAgent, jint jAccessType, jstring jProxyName, jstring jProxyBypass, jint jFlags ) {

	#ifdef _DEBUG
	cout << "WinHttp_open - entered" << endl;
	#endif

	const jchar * userAgent = (const jchar *) L"jWinHttp Java Wrapper";
	const jchar * proxyName = NULL;
	const jchar * proxyBypass = NULL;

	userAgent = getStringChars( env, jUserAgent );
	proxyName = getStringChars( env, jProxyName );
	proxyBypass = getStringChars( env, jProxyBypass );

	CoInitialize( NULL ); // --> http://support.microsoft.com/?kbid=834742

	int hInternet = (int) WinHttpOpen( (LPCWSTR)userAgent, jAccessType, (LPCWSTR)proxyName, (LPCWSTR)proxyBypass, jFlags );

	if ( hInternet == NULL ) {
	lastError = GetLastError();
	#ifdef _DEBUG
	cout << "WinHttpOpen() failed with " << lastError << endl;
	#endif
	} else {
	lastError = 0;
	}


	#ifdef _DEBUG
	cout << "WinHttpOpen() returned: " << hInternet << endl;
	#endif


	releaseStringChars( env, jUserAgent, userAgent );
	releaseStringChars( env, jProxyName, proxyName );
	releaseStringChars( env, jProxyBypass, proxyBypass );

	#ifdef _DEBUG
	cout << "WinHttp_open - exit" << endl;
	#endif

	return hInternet;
	}

	/*
	* Class: org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp
	* Method: closeHandle
	* Signature: (I)Z
	*/
	JNIEXPORT jboolean JNICALL Java_org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp_closeHandle
	(JNIEnv * env, jclass jClass, jint jInternet) {

	#ifdef _DEBUG
	cout << "WinHttp_closeHandle - entered" << endl;
	#endif

	BOOL ok = WinHttpCloseHandle( (void *) jInternet );

	if ( ! ok ) {
	lastError = GetLastError();
	#ifdef _DEBUG
	cout << "WinHttpClose() failed with " << lastError << endl;
	#endif
	} else {
	lastError = 0;
	}

	CoUninitialize();

	#ifdef _DEBUG
	cout << "WinHttp_closeHandle - exit" << endl;
	#endif

	return ok;
	}

	/*
	* Class: org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp
	* Method: getIEProxyConfigForCurrentUser
	* Signature: (Lorg/eclipse/core/internal/net/proxy/win32/winhttp/WinHttpCurrentUserIEProxyConfig;)Z
	*/
	JNIEXPORT jboolean JNICALL Java_org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp_getIEProxyConfigForCurrentUser
	(JNIEnv * env, jclass jClass, jobject jWinHttpCurrentUserIEProxyConfig) {

	#ifdef _DEBUG
	cout << "WinHttp_getIEProxyConfigForCurrentUser - entered" << endl;
	#endif

	WINHTTP_CURRENT_USER_IE_PROXY_CONFIG proxyConfig;
	ZeroMemory( &proxyConfig, sizeof( proxyConfig ) );

	BOOL ok = WinHttpGetIEProxyConfigForCurrentUser( &proxyConfig );

	if ( ! ok ) {
	lastError = GetLastError();
	#ifdef _DEBUG
	cout << "HttpGetIEProxyConfigForCurrentUser() failed with " << lastError << endl;
	#endif
	}

	if ( ok ) {

	#ifdef _DEBUG
	cout << "proxyConfig.fAutoDetect: " << proxyConfig.fAutoDetect << endl;
	wcout << L"proxyConfig.lpszProxy: " << null( proxyConfig.lpszProxy ) << endl;
	wcout << L"proxyConfig.lpszProxyBypass: " << null( proxyConfig.lpszProxyBypass ) << endl;
	#endif

	lastError = 0;
	jclass jWinHttpCurrentUserIEProxyConfigClass = env->GetObjectClass( jWinHttpCurrentUserIEProxyConfig );
	setBooleanField( env,jWinHttpCurrentUserIEProxyConfigClass, jWinHttpCurrentUserIEProxyConfig, "isAutoDetect", proxyConfig.fAutoDetect );
	setStringField( env, jWinHttpCurrentUserIEProxyConfigClass, jWinHttpCurrentUserIEProxyConfig, "autoConfigUrl", proxyConfig.lpszAutoConfigUrl );
	setStringField( env, jWinHttpCurrentUserIEProxyConfigClass, jWinHttpCurrentUserIEProxyConfig, "proxy", proxyConfig.lpszProxy );
	setStringField( env, jWinHttpCurrentUserIEProxyConfigClass, jWinHttpCurrentUserIEProxyConfig, "proxyBypass", proxyConfig.lpszProxyBypass );
	}


	#ifdef _DEBUG
	cout << "WinHttp_getIEProxyConfigForCurrentUser - exit" << endl;
	#endif

	return ok;
	}

	/*
	* Class: org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp
	* Method: getProxyForUrl
	* Signature: (ILjava/lang/String;Lorg/eclipse/core/internal/net/proxy/win32/winhttp/WinHttpAutoProxyOptions;Lorg/eclipse/core/internal/net/proxy/win32/winhttp/WinHttpProxyInfo;)Z
	*/
	JNIEXPORT jboolean JNICALL Java_org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp_getProxyForUrl
	(JNIEnv * env, jclass jClass, jint jInternet, jstring jUrl, jobject jWinHttpAutoProxyOptions, jobject jWinHttpProxyInfo ) {

	#ifdef _DEBUG
	cout << "WinHttp_getProxyForUrl - entered" << endl;
	#endif

	WINHTTP_AUTOPROXY_OPTIONS autoProxyOptions;
	ZeroMemory( &autoProxyOptions, sizeof( autoProxyOptions ) );

	jclass jWinHttpAutoProxyOptionsClass = env->GetObjectClass( jWinHttpAutoProxyOptions );

	autoProxyOptions.dwFlags = getIntField( env, jWinHttpAutoProxyOptionsClass, jWinHttpAutoProxyOptions, "flags" );
	autoProxyOptions.dwAutoDetectFlags = getIntField( env, jWinHttpAutoProxyOptionsClass, jWinHttpAutoProxyOptions, "autoDetectFlags" );
	jstring jAutoConfigUrl = getStringField( env, jWinHttpAutoProxyOptionsClass, jWinHttpAutoProxyOptions, "autoConfigUrl" );
	autoProxyOptions.lpszAutoConfigUrl = (LPCWSTR)getStringChars( env, jAutoConfigUrl );

	// The ´reserved´ fields will not be transfered!
	// - String reservedPointer
	// - int reservedInt

	autoProxyOptions.fAutoLogonIfChallenged = getBooleanField( env, jWinHttpAutoProxyOptionsClass, jWinHttpAutoProxyOptions, "autoLogonIfChallenged" );

	#ifdef _DEBUG
	cout << "autoProxyOptions.dwFlags: " << autoProxyOptions.dwFlags << endl;
	cout << "autoProxyOptions.dwAutoDetectFlags: " << autoProxyOptions.dwAutoDetectFlags << endl;
	wcout << L"autoProxyOptions.lpszAutoConfigUrl: " << null( autoProxyOptions.lpszAutoConfigUrl ) << endl;
	cout << "autoProxyOptions.fAutoLogonIfChallenged: " << autoProxyOptions.fAutoLogonIfChallenged << endl;
	#endif

	WINHTTP_PROXY_INFO proxyInfo;
	ZeroMemory( &proxyInfo, sizeof( proxyInfo ) );

	const jchar * url = getStringChars( env, jUrl );

	BOOL ok = WinHttpGetProxyForUrl( (void *)jInternet, (LPCWSTR)url, &autoProxyOptions, &proxyInfo );

	if ( ! ok ) {
	lastError = GetLastError();
	#ifdef _DEBUG
	cout << "WinHttpGetProxyForUrl() failed with " << lastError << endl;
	#endif
	}

	releaseStringChars( env, jUrl, url );
	releaseStringChars( env, jAutoConfigUrl, (const jchar *)autoProxyOptions.lpszAutoConfigUrl );

	if ( ok ) {
	lastError = 0;
	jclass jWinHttpProxyInfoClass = env->GetObjectClass( jWinHttpProxyInfo );

	#ifdef _DEBUG
	cout << "proxyInfo.dwAccessType: " << proxyInfo.dwAccessType << endl;
	wcout << L"proxyInfo.lpszProxy: " << null( proxyInfo.lpszProxy ) << endl;
	wcout << L"proxyInfo.lpszProxyBypass: " << null( proxyInfo.lpszProxyBypass ) << endl;
	#endif

	setIntField( env, jWinHttpProxyInfoClass, jWinHttpProxyInfo, "accessType", proxyInfo.dwAccessType );
	setStringField( env, jWinHttpProxyInfoClass, jWinHttpProxyInfo, "proxy", proxyInfo.lpszProxy );
	setStringField( env, jWinHttpProxyInfoClass, jWinHttpProxyInfo, "proxyBypass", proxyInfo.lpszProxyBypass );
	}

	#ifdef _DEBUG
	cout << "WinHttp_getProxyForUrl - exit" << endl;
	#endif

	return ok;
	}

	/*
	* Class: org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp
	* Method: detectAutoProxyConfigUrl
	* Signature: (Lorg/eclipse/core/internal/net/proxy/win32/winhttp/AutoProxyHolder;)Z
	*/
	JNIEXPORT jboolean JNICALL Java_org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp_detectAutoProxyConfigUrl
	(JNIEnv * env, jclass jClass, jobject jAutoProxyHolder) {

	#ifdef _DEBUG
	cout << "WinHttp_detectAutoProxyConfigUrl - entered" << endl;
	#endif

	jclass jAutoProxyHolderClass = env->GetObjectClass( jAutoProxyHolder );
	DWORD dwAutoDetectFlags = getIntField( env, jAutoProxyHolderClass, jAutoProxyHolder, "autoDetectFlags" );

	#ifdef _DEBUG
	cout << "autoProxyHolder.autoDetectFlags: " << dwAutoDetectFlags << endl;
	#endif

	LPWSTR pwszAutoConfigUrl;

	BOOL ok = WinHttpDetectAutoProxyConfigUrl( dwAutoDetectFlags, &pwszAutoConfigUrl );

	if ( ! ok ) {
	lastError = GetLastError();
	#ifdef _DEBUG
	cout << "WinHttpDetectAutoProxyConfigUrl() failed with " << lastError << endl;
	#endif
	}

	if ( ok ) {
	lastError = 0;

	#ifdef _DEBUG
	wcout << L"autoConfigUrl: " << null( pwszAutoConfigUrl ) << endl;
	#endif

	setStringField( env, jAutoProxyHolderClass, jAutoProxyHolder, "autoConfigUrl", pwszAutoConfigUrl );
	}

	#ifdef _DEBUG
	cout << "WinHttp_detectAutoProxyConfigUrl - exit" << endl;
	#endif

	return ok;
	}


	/*
	* Class: org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp
	* Method: getLastError
	* Signature: ()I
	*/
	JNIEXPORT jint JNICALL Java_org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp_getLastError
	(JNIEnv * env, jclass jClass) {

	#ifdef _DEBUG
	cout << "WinHttp_getLastError - entered" << endl;
	#endif

	#ifdef _DEBUG
	cout << "WinHttp_getLastError - exit" << endl;
	#endif

	return lastError;
	}

	/*
	* Class: org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp
	* Method: getLastErrorMessage
	* Signature: ()Ljava/lang/String;
	*/
	JNIEXPORT jstring JNICALL Java_org_eclipse_core_internal_net_proxy_win32_winhttp_WinHttp_getLastErrorMessage
	(JNIEnv * env, jclass jClass) {

	#ifdef _DEBUG
	cout << "WinHttp_getLastErrorMessage - entered" << endl;
	#endif

	LPVOID lpMsgBuf = NULL;
	DWORD result = 0;

	if ( lastError >= WINHTTP_ERROR_BASE && lastError <= WINHTTP_ERROR_LAST ) {
	HMODULE hModule = GetModuleHandle( "winhttp.dll" );

	if ( hModule == NULL ) {
	lpMsgBuf = "Could not retrieve error message, because ´GetModuleHandle( \"winhttp.dll\" )´ failed.";
	} else {
	result = FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER \|
	FORMAT_MESSAGE_FROM_HMODULE \|
	FORMAT_MESSAGE_IGNORE_INSERTS,
	hModule,
	lastError,
	MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language
	(LPTSTR) &lpMsgBuf,
	0,
	NULL );
	}

	} else {
	result = FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER \|
	FORMAT_MESSAGE_FROM_SYSTEM \|
	FORMAT_MESSAGE_IGNORE_INSERTS,
	NULL,
	lastError,
	MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ), // Default language
	(LPTSTR) &lpMsgBuf,
	0,
	NULL );
	}

	if ( lpMsgBuf == NULL ) {
	#ifdef _DEBUG
	cout << "WinHttp_getLastErrorMessage() failed with " << GetLastError() << " for error code " << lastError << endl;
	#endif

	lpMsgBuf = "Could not retrieve error message.";
	}

	jstring string = env->NewStringUTF( (char *) lpMsgBuf );

	if ( result > 0 ) {
	// Free dynamically allocated buffer
	LocalFree( lpMsgBuf );
	}

	#ifdef _DEBUG
	cout << "WinHttp_getLastErrorMessage - exit" << endl;
	#endif

	return string;
	}