dlls/hlink/extserv.c - wine - Git at Google

 /*
  * Copyright 2007 Jacek Caban for CodeWeavers
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */

 #include "hlink_private.h"

 #include "wine/debug.h"
 #include "wine/unicode.h"

 WINE_DEFAULT_DEBUG_CHANNEL(hlink);

 typedef struct {
     IUnknown           IUnknown_iface;
     IAuthenticate      IAuthenticate_iface;
     IHttpNegotiate     IHttpNegotiate_iface;
     IExtensionServices IExtensionServices_iface;

     LONG ref;
     IUnknown *outer;

     HWND hwnd;
     LPWSTR username;
     LPWSTR password;
     LPWSTR headers;
 } ExtensionService;

 static inline ExtensionService *impl_from_IUnknown(IUnknown *iface)
 {
     return CONTAINING_RECORD(iface, ExtensionService, IUnknown_iface);
 }

 static HRESULT WINAPI ExtServUnk_QueryInterface(IUnknown *iface, REFIID riid, void **ppv)
 {
     ExtensionService *This = impl_from_IUnknown(iface);

     *ppv = NULL;

     if(IsEqualGUID(&IID_IUnknown, riid)) {
         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
         *ppv = &This->IUnknown_iface;
     }else if(IsEqualGUID(&IID_IAuthenticate, riid)) {
         TRACE("(%p)->(IID_IAuthenticate %p)\n", This, ppv);
         *ppv = &This->IAuthenticate_iface;
     }else if(IsEqualGUID(&IID_IHttpNegotiate, riid)) {
         TRACE("(%p)->(IID_IHttpNegotiate %p)\n", This, ppv);
         *ppv = &This->IHttpNegotiate_iface;
     }else if(IsEqualGUID(&IID_IExtensionServices, riid)) {
         TRACE("(%p)->(IID_IExtensionServices %p)\n", This, ppv);
         *ppv = &This->IExtensionServices_iface;
     }

     if(*ppv) {
         IUnknown_AddRef((IUnknown*)*ppv);
         return S_OK;
     }

     FIXME("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
     return E_NOINTERFACE;
 }

 static ULONG WINAPI ExtServUnk_AddRef(IUnknown *iface)
 {
     ExtensionService *This = impl_from_IUnknown(iface);
     LONG ref = InterlockedIncrement(&This->ref);

     TRACE("(%p) ref=%d\n", This, ref);

     return ref;
 }

 static ULONG WINAPI ExtServUnk_Release(IUnknown *iface)
 {
     ExtensionService *This = impl_from_IUnknown(iface);
     LONG ref = InterlockedDecrement(&This->ref);

     TRACE("(%p) ref=%d\n", This, ref);

     if(!ref) {
         heap_free(This->username);
         heap_free(This->password);
         heap_free(This->headers);
         heap_free(This);
     }

     return ref;
 }

 static const IUnknownVtbl ExtServUnkVtbl = {
     ExtServUnk_QueryInterface,
     ExtServUnk_AddRef,
     ExtServUnk_Release
 };

 static inline ExtensionService *impl_from_IAuthenticate(IAuthenticate *iface)
 {
     return CONTAINING_RECORD(iface, ExtensionService, IAuthenticate_iface);
 }

 static HRESULT WINAPI Authenticate_QueryInterface(IAuthenticate *iface, REFIID riid, void **ppv)
 {
     ExtensionService *This = impl_from_IAuthenticate(iface);
     return IUnknown_QueryInterface(This->outer, riid, ppv);
 }

 static ULONG WINAPI Authenticate_AddRef(IAuthenticate *iface)
 {
     ExtensionService *This = impl_from_IAuthenticate(iface);
     return IUnknown_AddRef(This->outer);
 }

 static ULONG WINAPI Authenticate_Release(IAuthenticate *iface)
 {
     ExtensionService *This = impl_from_IAuthenticate(iface);
     return IUnknown_Release(This->outer);
 }

 static HRESULT WINAPI Authenticate_Authenticate(IAuthenticate *iface,
         HWND *phwnd, LPWSTR *pszUsername, LPWSTR *pszPassword)
 {
     ExtensionService *This = impl_from_IAuthenticate(iface);

     TRACE("(%p)->(%p %p %p)\n", This, phwnd, pszUsername, pszPassword);

     if(!phwnd || !pszUsername || !pszPassword)
         return E_INVALIDARG;

     *phwnd = This->hwnd;
     *pszUsername = hlink_co_strdupW(This->username);
     *pszPassword = hlink_co_strdupW(This->password);

     return S_OK;
 }

 static const IAuthenticateVtbl AuthenticateVtbl = {
     Authenticate_QueryInterface,
     Authenticate_AddRef,
     Authenticate_Release,
     Authenticate_Authenticate
 };

 static inline ExtensionService *impl_from_IHttpNegotiate(IHttpNegotiate *iface)
 {
     return CONTAINING_RECORD(iface, ExtensionService, IHttpNegotiate_iface);
 }

 static HRESULT WINAPI HttpNegotiate_QueryInterface(IHttpNegotiate *iface, REFIID riid, void **ppv)
 {
     ExtensionService *This = impl_from_IHttpNegotiate(iface);
     return IUnknown_QueryInterface(This->outer, riid, ppv);
 }

 static ULONG WINAPI HttpNegotiate_AddRef(IHttpNegotiate *iface)
 {
     ExtensionService *This = impl_from_IHttpNegotiate(iface);
     return IUnknown_AddRef(This->outer);
 }

 static ULONG WINAPI HttpNegotiate_Release(IHttpNegotiate *iface)
 {
     ExtensionService *This = impl_from_IHttpNegotiate(iface);
     return IUnknown_Release(This->outer);
 }

 static HRESULT WINAPI HttpNegotiate_BeginningTransaction(IHttpNegotiate *iface,
         LPCWSTR szURL, LPCWSTR szHeaders, DWORD dwReserved, LPWSTR *pszAdditionalHeaders)
 {
     ExtensionService *This = impl_from_IHttpNegotiate(iface);

     TRACE("(%p)->(%s %s %x %p)\n", This, debugstr_w(szURL), debugstr_w(szHeaders), dwReserved,
           pszAdditionalHeaders);

     if(!pszAdditionalHeaders)
         return E_INVALIDARG;

     *pszAdditionalHeaders = hlink_co_strdupW(This->headers);
     return S_OK;
 }

 static HRESULT WINAPI HttpNegotiate_OnResponse(IHttpNegotiate *iface, DWORD dwResponseCode,
         LPCWSTR szResponseHeaders, LPCWSTR szRequestHeaders, LPWSTR *pszAdditionalRequestHeaders)
 {
     ExtensionService *This = impl_from_IHttpNegotiate(iface);

     TRACE("(%p)->(%d %s %s %p)\n", This, dwResponseCode, debugstr_w(szResponseHeaders),
           debugstr_w(szRequestHeaders), pszAdditionalRequestHeaders);

     *pszAdditionalRequestHeaders = NULL;
     return S_OK;
 }

 static const IHttpNegotiateVtbl HttpNegotiateVtbl = {
     HttpNegotiate_QueryInterface,
     HttpNegotiate_AddRef,
     HttpNegotiate_Release,
     HttpNegotiate_BeginningTransaction,
     HttpNegotiate_OnResponse
 };

 static inline ExtensionService *impl_from_IExtensionServices(IExtensionServices *iface)
 {
     return CONTAINING_RECORD(iface, ExtensionService, IExtensionServices_iface);
 }

 static HRESULT WINAPI ExtServ_QueryInterface(IExtensionServices *iface, REFIID riid, void **ppv)
 {
     ExtensionService *This = impl_from_IExtensionServices(iface);
     return IUnknown_QueryInterface(This->outer, riid, ppv);
 }

 static ULONG WINAPI ExtServ_AddRef(IExtensionServices *iface)
 {
     ExtensionService *This = impl_from_IExtensionServices(iface);
     return IUnknown_AddRef(This->outer);
 }

 static ULONG WINAPI ExtServ_Release(IExtensionServices *iface)
 {
     ExtensionService *This = impl_from_IExtensionServices(iface);
     return IUnknown_Release(This->outer);
 }

 static HRESULT ExtServ_ImplSetAdditionalHeaders(ExtensionService* This, LPCWSTR pwzAdditionalHeaders)
 {
     int len = 0;

     heap_free(This->headers);
     This->headers = NULL;

     if (!pwzAdditionalHeaders)
         return S_OK;

     len = strlenW(pwzAdditionalHeaders);

     if(len && pwzAdditionalHeaders[len-1] != '\n' && pwzAdditionalHeaders[len-1] != '\r') {
         static const WCHAR endlW[] = {'\r','\n',0};
         This->headers = heap_alloc(len*sizeof(WCHAR) + sizeof(endlW));
         memcpy(This->headers, pwzAdditionalHeaders, len*sizeof(WCHAR));
         memcpy(This->headers+len, endlW, sizeof(endlW));
     }else {
         This->headers = hlink_strdupW(pwzAdditionalHeaders);
     }

     return S_OK;
 }

 static HRESULT WINAPI ExtServ_SetAdditionalHeaders(IExtensionServices* iface, LPCWSTR pwzAdditionalHeaders)
 {
     ExtensionService *This = impl_from_IExtensionServices(iface);

     TRACE("(%p)->(%s)\n", This, debugstr_w(pwzAdditionalHeaders));

     return ExtServ_ImplSetAdditionalHeaders(This,pwzAdditionalHeaders);
 }

 static HRESULT ExtServ_ImplSetAuthenticateData(ExtensionService* This, HWND phwnd, LPCWSTR pwzUsername, LPCWSTR pwzPassword)
 {
     heap_free(This->username);
     heap_free(This->password);

     This->hwnd = phwnd;
     This->username = hlink_strdupW(pwzUsername);
     This->password = hlink_strdupW(pwzPassword);

     return S_OK;
 }

 static HRESULT WINAPI ExtServ_SetAuthenticateData(IExtensionServices* iface, HWND phwnd, LPCWSTR pwzUsername, LPCWSTR pwzPassword)
 {
     ExtensionService *This = impl_from_IExtensionServices(iface);

     TRACE("(%p)->(%p %s %s)\n", This, phwnd, debugstr_w(pwzUsername), debugstr_w(pwzPassword));

     return ExtServ_ImplSetAuthenticateData(This, phwnd, pwzUsername, pwzPassword);
 }

 static const IExtensionServicesVtbl ExtServVtbl = {
     ExtServ_QueryInterface,
     ExtServ_AddRef,
     ExtServ_Release,
     ExtServ_SetAdditionalHeaders,
     ExtServ_SetAuthenticateData
 };

 /***********************************************************************
  *             HlinkCreateExtensionServices (HLINK.@)
  */
 HRESULT WINAPI HlinkCreateExtensionServices(LPCWSTR pwzAdditionalHeaders,
         HWND phwnd, LPCWSTR pszUsername, LPCWSTR pszPassword,
         IUnknown *punkOuter, REFIID riid, void** ppv)
 {
     ExtensionService *ret;
     HRESULT hres = S_OK;

     TRACE("%s %p %s %s %p %s %p\n",debugstr_w(pwzAdditionalHeaders),
             phwnd, debugstr_w(pszUsername), debugstr_w(pszPassword),
             punkOuter, debugstr_guid(riid), ppv);

     ret = heap_alloc(sizeof(*ret));

     ret->IUnknown_iface.lpVtbl = &ExtServUnkVtbl;
     ret->IAuthenticate_iface.lpVtbl = &AuthenticateVtbl;
     ret->IHttpNegotiate_iface.lpVtbl = &HttpNegotiateVtbl;
     ret->IExtensionServices_iface.lpVtbl = &ExtServVtbl;
     ret->ref = 1;
     ret->headers = NULL;
     ret->hwnd = NULL;
     ret->username = NULL;
     ret->password = NULL;

     ExtServ_ImplSetAuthenticateData(ret, phwnd, pszUsername, pszPassword);
     ExtServ_ImplSetAdditionalHeaders(ret, pwzAdditionalHeaders);

     if(!punkOuter) {
         ret->outer = &ret->IUnknown_iface;
         hres = IUnknown_QueryInterface(&ret->IUnknown_iface, riid, ppv);
         IUnknown_Release(&ret->IUnknown_iface);
     }else if(IsEqualGUID(&IID_IUnknown, riid)) {
         ret->outer = punkOuter;
         *ppv = &ret->IUnknown_iface;
     }else {
         IUnknown_Release(&ret->IUnknown_iface);
         hres = E_INVALIDARG;
     }

     return hres;
 }
	/*
	* Copyright 2007 Jacek Caban for CodeWeavers
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2.1 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with this library; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
	*/

	#include "hlink_private.h"

	#include "wine/debug.h"
	#include "wine/unicode.h"

	WINE_DEFAULT_DEBUG_CHANNEL(hlink);

	typedef struct {
	IUnknown IUnknown_iface;
	IAuthenticate IAuthenticate_iface;
	IHttpNegotiate IHttpNegotiate_iface;
	IExtensionServices IExtensionServices_iface;

	LONG ref;
	IUnknown *outer;

	HWND hwnd;
	LPWSTR username;
	LPWSTR password;
	LPWSTR headers;
	} ExtensionService;

	static inline ExtensionService impl_from_IUnknown(IUnknown iface)
	{
	return CONTAINING_RECORD(iface, ExtensionService, IUnknown_iface);
	}

	static HRESULT WINAPI ExtServUnk_QueryInterface(IUnknown iface, REFIID riid, void *ppv)
	{
	ExtensionService *This = impl_from_IUnknown(iface);

	*ppv = NULL;

	if(IsEqualGUID(&IID_IUnknown, riid)) {
	TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
	*ppv = &This->IUnknown_iface;
	}else if(IsEqualGUID(&IID_IAuthenticate, riid)) {
	TRACE("(%p)->(IID_IAuthenticate %p)\n", This, ppv);
	*ppv = &This->IAuthenticate_iface;
	}else if(IsEqualGUID(&IID_IHttpNegotiate, riid)) {
	TRACE("(%p)->(IID_IHttpNegotiate %p)\n", This, ppv);
	*ppv = &This->IHttpNegotiate_iface;
	}else if(IsEqualGUID(&IID_IExtensionServices, riid)) {
	TRACE("(%p)->(IID_IExtensionServices %p)\n", This, ppv);
	*ppv = &This->IExtensionServices_iface;
	}

	if(*ppv) {
	IUnknown_AddRef((IUnknown)ppv);
	return S_OK;
	}

	FIXME("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
	return E_NOINTERFACE;
	}

	static ULONG WINAPI ExtServUnk_AddRef(IUnknown *iface)
	{
	ExtensionService *This = impl_from_IUnknown(iface);
	LONG ref = InterlockedIncrement(&This->ref);

	TRACE("(%p) ref=%d\n", This, ref);

	return ref;
	}

	static ULONG WINAPI ExtServUnk_Release(IUnknown *iface)
	{
	ExtensionService *This = impl_from_IUnknown(iface);
	LONG ref = InterlockedDecrement(&This->ref);

	TRACE("(%p) ref=%d\n", This, ref);

	if(!ref) {
	heap_free(This->username);
	heap_free(This->password);
	heap_free(This->headers);
	heap_free(This);
	}

	return ref;
	}

	static const IUnknownVtbl ExtServUnkVtbl = {
	ExtServUnk_QueryInterface,
	ExtServUnk_AddRef,
	ExtServUnk_Release
	};

	static inline ExtensionService impl_from_IAuthenticate(IAuthenticate iface)
	{
	return CONTAINING_RECORD(iface, ExtensionService, IAuthenticate_iface);
	}

	static HRESULT WINAPI Authenticate_QueryInterface(IAuthenticate iface, REFIID riid, void *ppv)
	{
	ExtensionService *This = impl_from_IAuthenticate(iface);
	return IUnknown_QueryInterface(This->outer, riid, ppv);
	}

	static ULONG WINAPI Authenticate_AddRef(IAuthenticate *iface)
	{
	ExtensionService *This = impl_from_IAuthenticate(iface);
	return IUnknown_AddRef(This->outer);
	}

	static ULONG WINAPI Authenticate_Release(IAuthenticate *iface)
	{
	ExtensionService *This = impl_from_IAuthenticate(iface);
	return IUnknown_Release(This->outer);
	}

	static HRESULT WINAPI Authenticate_Authenticate(IAuthenticate *iface,
	HWND phwnd, LPWSTR pszUsername, LPWSTR *pszPassword)
	{
	ExtensionService *This = impl_from_IAuthenticate(iface);

	TRACE("(%p)->(%p %p %p)\n", This, phwnd, pszUsername, pszPassword);

	if(!phwnd \|\| !pszUsername \|\| !pszPassword)
	return E_INVALIDARG;

	*phwnd = This->hwnd;
	*pszUsername = hlink_co_strdupW(This->username);
	*pszPassword = hlink_co_strdupW(This->password);

	return S_OK;
	}

	static const IAuthenticateVtbl AuthenticateVtbl = {
	Authenticate_QueryInterface,
	Authenticate_AddRef,
	Authenticate_Release,
	Authenticate_Authenticate
	};

	static inline ExtensionService impl_from_IHttpNegotiate(IHttpNegotiate iface)
	{
	return CONTAINING_RECORD(iface, ExtensionService, IHttpNegotiate_iface);
	}

	static HRESULT WINAPI HttpNegotiate_QueryInterface(IHttpNegotiate iface, REFIID riid, void *ppv)
	{
	ExtensionService *This = impl_from_IHttpNegotiate(iface);
	return IUnknown_QueryInterface(This->outer, riid, ppv);
	}

	static ULONG WINAPI HttpNegotiate_AddRef(IHttpNegotiate *iface)
	{
	ExtensionService *This = impl_from_IHttpNegotiate(iface);
	return IUnknown_AddRef(This->outer);
	}

	static ULONG WINAPI HttpNegotiate_Release(IHttpNegotiate *iface)
	{
	ExtensionService *This = impl_from_IHttpNegotiate(iface);
	return IUnknown_Release(This->outer);
	}

	static HRESULT WINAPI HttpNegotiate_BeginningTransaction(IHttpNegotiate *iface,
	LPCWSTR szURL, LPCWSTR szHeaders, DWORD dwReserved, LPWSTR *pszAdditionalHeaders)
	{
	ExtensionService *This = impl_from_IHttpNegotiate(iface);

	TRACE("(%p)->(%s %s %x %p)\n", This, debugstr_w(szURL), debugstr_w(szHeaders), dwReserved,
	pszAdditionalHeaders);

	if(!pszAdditionalHeaders)
	return E_INVALIDARG;

	*pszAdditionalHeaders = hlink_co_strdupW(This->headers);
	return S_OK;
	}

	static HRESULT WINAPI HttpNegotiate_OnResponse(IHttpNegotiate *iface, DWORD dwResponseCode,
	LPCWSTR szResponseHeaders, LPCWSTR szRequestHeaders, LPWSTR *pszAdditionalRequestHeaders)
	{
	ExtensionService *This = impl_from_IHttpNegotiate(iface);

	TRACE("(%p)->(%d %s %s %p)\n", This, dwResponseCode, debugstr_w(szResponseHeaders),
	debugstr_w(szRequestHeaders), pszAdditionalRequestHeaders);

	*pszAdditionalRequestHeaders = NULL;
	return S_OK;
	}

	static const IHttpNegotiateVtbl HttpNegotiateVtbl = {
	HttpNegotiate_QueryInterface,
	HttpNegotiate_AddRef,
	HttpNegotiate_Release,
	HttpNegotiate_BeginningTransaction,
	HttpNegotiate_OnResponse
	};

	static inline ExtensionService impl_from_IExtensionServices(IExtensionServices iface)
	{
	return CONTAINING_RECORD(iface, ExtensionService, IExtensionServices_iface);
	}

	static HRESULT WINAPI ExtServ_QueryInterface(IExtensionServices iface, REFIID riid, void *ppv)
	{
	ExtensionService *This = impl_from_IExtensionServices(iface);
	return IUnknown_QueryInterface(This->outer, riid, ppv);
	}

	static ULONG WINAPI ExtServ_AddRef(IExtensionServices *iface)
	{
	ExtensionService *This = impl_from_IExtensionServices(iface);
	return IUnknown_AddRef(This->outer);
	}

	static ULONG WINAPI ExtServ_Release(IExtensionServices *iface)
	{
	ExtensionService *This = impl_from_IExtensionServices(iface);
	return IUnknown_Release(This->outer);
	}

	static HRESULT ExtServ_ImplSetAdditionalHeaders(ExtensionService* This, LPCWSTR pwzAdditionalHeaders)
	{
	int len = 0;

	heap_free(This->headers);
	This->headers = NULL;

	if (!pwzAdditionalHeaders)
	return S_OK;

	len = strlenW(pwzAdditionalHeaders);

	if(len && pwzAdditionalHeaders[len-1] != '\n' && pwzAdditionalHeaders[len-1] != '\r') {
	static const WCHAR endlW[] = {'\r','\n',0};
	This->headers = heap_alloc(len*sizeof(WCHAR) + sizeof(endlW));
	memcpy(This->headers, pwzAdditionalHeaders, len*sizeof(WCHAR));
	memcpy(This->headers+len, endlW, sizeof(endlW));
	}else {
	This->headers = hlink_strdupW(pwzAdditionalHeaders);
	}

	return S_OK;
	}

	static HRESULT WINAPI ExtServ_SetAdditionalHeaders(IExtensionServices* iface, LPCWSTR pwzAdditionalHeaders)
	{
	ExtensionService *This = impl_from_IExtensionServices(iface);

	TRACE("(%p)->(%s)\n", This, debugstr_w(pwzAdditionalHeaders));

	return ExtServ_ImplSetAdditionalHeaders(This,pwzAdditionalHeaders);
	}

	static HRESULT ExtServ_ImplSetAuthenticateData(ExtensionService* This, HWND phwnd, LPCWSTR pwzUsername, LPCWSTR pwzPassword)
	{
	heap_free(This->username);
	heap_free(This->password);

	This->hwnd = phwnd;
	This->username = hlink_strdupW(pwzUsername);
	This->password = hlink_strdupW(pwzPassword);

	return S_OK;
	}

	static HRESULT WINAPI ExtServ_SetAuthenticateData(IExtensionServices* iface, HWND phwnd, LPCWSTR pwzUsername, LPCWSTR pwzPassword)
	{
	ExtensionService *This = impl_from_IExtensionServices(iface);

	TRACE("(%p)->(%p %s %s)\n", This, phwnd, debugstr_w(pwzUsername), debugstr_w(pwzPassword));

	return ExtServ_ImplSetAuthenticateData(This, phwnd, pwzUsername, pwzPassword);
	}

	static const IExtensionServicesVtbl ExtServVtbl = {
	ExtServ_QueryInterface,
	ExtServ_AddRef,
	ExtServ_Release,
	ExtServ_SetAdditionalHeaders,
	ExtServ_SetAuthenticateData
	};

	/***********************************************************************
	* HlinkCreateExtensionServices (HLINK.@)
	*/
	HRESULT WINAPI HlinkCreateExtensionServices(LPCWSTR pwzAdditionalHeaders,
	HWND phwnd, LPCWSTR pszUsername, LPCWSTR pszPassword,
	IUnknown punkOuter, REFIID riid, void* ppv)
	{
	ExtensionService *ret;
	HRESULT hres = S_OK;

	TRACE("%s %p %s %s %p %s %p\n",debugstr_w(pwzAdditionalHeaders),
	phwnd, debugstr_w(pszUsername), debugstr_w(pszPassword),
	punkOuter, debugstr_guid(riid), ppv);

	ret = heap_alloc(sizeof(*ret));

	ret->IUnknown_iface.lpVtbl = &ExtServUnkVtbl;
	ret->IAuthenticate_iface.lpVtbl = &AuthenticateVtbl;
	ret->IHttpNegotiate_iface.lpVtbl = &HttpNegotiateVtbl;
	ret->IExtensionServices_iface.lpVtbl = &ExtServVtbl;
	ret->ref = 1;
	ret->headers = NULL;
	ret->hwnd = NULL;
	ret->username = NULL;
	ret->password = NULL;

	ExtServ_ImplSetAuthenticateData(ret, phwnd, pszUsername, pszPassword);
	ExtServ_ImplSetAdditionalHeaders(ret, pwzAdditionalHeaders);

	if(!punkOuter) {
	ret->outer = &ret->IUnknown_iface;
	hres = IUnknown_QueryInterface(&ret->IUnknown_iface, riid, ppv);
	IUnknown_Release(&ret->IUnknown_iface);
	}else if(IsEqualGUID(&IID_IUnknown, riid)) {
	ret->outer = punkOuter;
	*ppv = &ret->IUnknown_iface;
	}else {
	IUnknown_Release(&ret->IUnknown_iface);
	hres = E_INVALIDARG;
	}

	return hres;
	}