wine/dlls/msxml3/bsc.c

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/*
* Copyright 2008 Piotr Caban
*
* 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
*/
#define COBJMACROS
#define NONAMELESSUNION
#include "config.h"
#include <stdarg.h>
#include <assert.h>
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "ole2.h"
#include "msxml2.h"
#include "wininet.h"
#include "urlmon.h"
#include "winreg.h"
#include "shlwapi.h"
#include "wine/debug.h"
#include "msxml_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(msxml);
struct bsc_t {
const struct IBindStatusCallbackVtbl *lpVtbl;
LONG ref;
void *obj;
HRESULT (*onDataAvailable)(void*,char*,DWORD);
IBinding *binding;
IStream *memstream;
};
static inline bsc_t *impl_from_IBindStatusCallback( IBindStatusCallback *iface )
{
return (bsc_t *)((char*)iface - FIELD_OFFSET(bsc_t, lpVtbl));
}
static HRESULT WINAPI bsc_QueryInterface(
IBindStatusCallback *iface,
REFIID riid,
LPVOID *ppobj )
{
if (IsEqualGUID(riid, &IID_IUnknown) ||
IsEqualGUID(riid, &IID_IBindStatusCallback))
{
IBindStatusCallback_AddRef( iface );
*ppobj = iface;
return S_OK;
}
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TRACE("interface %s not implemented\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI bsc_AddRef(
IBindStatusCallback *iface )
{
bsc_t *This = impl_from_IBindStatusCallback(iface);
LONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) ref=%d\n", This, ref);
return ref;
}
static ULONG WINAPI bsc_Release(
IBindStatusCallback *iface )
{
bsc_t *This = impl_from_IBindStatusCallback(iface);
LONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) ref=%d\n", This, ref);
if(!ref) {
if(This->binding)
IBinding_Release(This->binding);
if(This->memstream)
IStream_Release(This->memstream);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI bsc_OnStartBinding(
IBindStatusCallback* iface,
DWORD dwReserved,
IBinding* pib)
{
bsc_t *This = impl_from_IBindStatusCallback(iface);
HRESULT hr;
TRACE("(%p)->(%x %p)\n", This, dwReserved, pib);
This->binding = pib;
IBinding_AddRef(pib);
hr = CreateStreamOnHGlobal(NULL, TRUE, &This->memstream);
if(FAILED(hr))
return hr;
return S_OK;
}
static HRESULT WINAPI bsc_GetPriority(
IBindStatusCallback* iface,
LONG* pnPriority)
{
return S_OK;
}
static HRESULT WINAPI bsc_OnLowResource(
IBindStatusCallback* iface,
DWORD reserved)
{
return S_OK;
}
static HRESULT WINAPI bsc_OnProgress(
IBindStatusCallback* iface,
ULONG ulProgress,
ULONG ulProgressMax,
ULONG ulStatusCode,
LPCWSTR szStatusText)
{
return S_OK;
}
static HRESULT WINAPI bsc_OnStopBinding(
IBindStatusCallback* iface,
HRESULT hresult,
LPCWSTR szError)
{
bsc_t *This = impl_from_IBindStatusCallback(iface);
HRESULT hr = S_OK;
TRACE("(%p)->(%08x %s)\n", This, hresult, debugstr_w(szError));
if(This->binding) {
IBinding_Release(This->binding);
This->binding = NULL;
}
if(This->obj && SUCCEEDED(hresult)) {
HGLOBAL hglobal;
hr = GetHGlobalFromStream(This->memstream, &hglobal);
if(SUCCEEDED(hr))
{
DWORD len = GlobalSize(hglobal);
char *ptr = GlobalLock(hglobal);
hr = This->onDataAvailable(This->obj, ptr, len);
GlobalUnlock(hglobal);
}
}
return hr;
}
static HRESULT WINAPI bsc_GetBindInfo(
IBindStatusCallback* iface,
DWORD* grfBINDF,
BINDINFO* pbindinfo)
{
*grfBINDF = BINDF_GETNEWESTVERSION|BINDF_PULLDATA|BINDF_RESYNCHRONIZE|BINDF_PRAGMA_NO_CACHE;
return S_OK;
}
static HRESULT WINAPI bsc_OnDataAvailable(
IBindStatusCallback* iface,
DWORD grfBSCF,
DWORD dwSize,
FORMATETC* pformatetc,
STGMEDIUM* pstgmed)
{
bsc_t *This = impl_from_IBindStatusCallback(iface);
BYTE buf[4096];
DWORD read, written;
HRESULT hr;
TRACE("(%p)->(%x %d %p %p)\n", This, grfBSCF, dwSize, pformatetc, pstgmed);
do
{
hr = IStream_Read(pstgmed->u.pstm, buf, sizeof(buf), &read);
if(FAILED(hr))
break;
hr = IStream_Write(This->memstream, buf, read, &written);
} while(SUCCEEDED(hr) && written != 0 && read != 0);
return S_OK;
}
static HRESULT WINAPI bsc_OnObjectAvailable(
IBindStatusCallback* iface,
REFIID riid,
IUnknown* punk)
{
return S_OK;
}
static const struct IBindStatusCallbackVtbl bsc_vtbl =
{
bsc_QueryInterface,
bsc_AddRef,
bsc_Release,
bsc_OnStartBinding,
bsc_GetPriority,
bsc_OnLowResource,
bsc_OnProgress,
bsc_OnStopBinding,
bsc_GetBindInfo,
bsc_OnDataAvailable,
bsc_OnObjectAvailable
};
HRESULT bind_url(LPCWSTR url, HRESULT (*onDataAvailable)(void*,char*,DWORD), void *obj, bsc_t **ret)
{
WCHAR fileUrl[INTERNET_MAX_URL_LENGTH];
bsc_t *bsc;
IBindCtx *pbc;
HRESULT hr;
TRACE("%s\n", debugstr_w(url));
if(!PathIsURLW(url))
{
WCHAR fullpath[MAX_PATH];
DWORD needed = sizeof(fileUrl)/sizeof(WCHAR);
if(!PathSearchAndQualifyW(url, fullpath, sizeof(fullpath)/sizeof(WCHAR)))
{
WARN("can't find path\n");
return E_FAIL;
}
if(FAILED(UrlCreateFromPathW(url, fileUrl, &needed, 0)))
{
ERR("can't create url from path\n");
return E_FAIL;
}
url = fileUrl;
}
hr = CreateBindCtx(0, &pbc);
if(FAILED(hr))
return hr;
bsc = HeapAlloc(GetProcessHeap(), 0, sizeof(bsc_t));
bsc->lpVtbl = &bsc_vtbl;
bsc->ref = 1;
bsc->obj = obj;
bsc->onDataAvailable = onDataAvailable;
bsc->binding = NULL;
bsc->memstream = NULL;
hr = RegisterBindStatusCallback(pbc, (IBindStatusCallback*)&bsc->lpVtbl, NULL, 0);
if(SUCCEEDED(hr))
{
IMoniker *moniker;
hr = CreateURLMoniker(NULL, url, &moniker);
if(SUCCEEDED(hr))
{
IStream *stream;
hr = IMoniker_BindToStorage(moniker, pbc, NULL, &IID_IStream, (LPVOID*)&stream);
IMoniker_Release(moniker);
if(stream)
IStream_Release(stream);
}
IBindCtx_Release(pbc);
}
if(FAILED(hr))
{
IBindStatusCallback_Release((IBindStatusCallback*)&bsc->lpVtbl);
bsc = NULL;
}
*ret = bsc;
return hr;
}
void detach_bsc(bsc_t *bsc)
{
if(bsc->binding)
IBinding_Abort(bsc->binding);
bsc->obj = NULL;
IBindStatusCallback_Release((IBindStatusCallback*)&bsc->lpVtbl);
}