GuestDnDSourceImpl.cpp@ 72088

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1	/* $Id: GuestDnDSourceImpl.cpp 69500 2017-10-28 15:14:05Z vboxsync $ */
2	/** @file
3	* VBox Console COM Class implementation - Guest drag and drop source.
4	*/
5
6	/*
7	* Copyright (C) 2014-2017 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	#define LOG_GROUP LOG_GROUP_GUEST_DND //LOG_GROUP_MAIN_GUESTDNDSOURCE
23	#include "LoggingNew.h"
24
25	#include "GuestImpl.h"
26	#include "GuestDnDSourceImpl.h"
27	#include "GuestDnDPrivate.h"
28	#include "ConsoleImpl.h"
29
30	#include "Global.h"
31	#include "AutoCaller.h"
32	#include "ThreadTask.h"
33
34	#include <iprt/asm.h>
35	#include <iprt/dir.h>
36	#include <iprt/file.h>
37	#include <iprt/path.h>
38	#include <iprt/uri.h>
39
40	#include <iprt/cpp/utils.h> /* For unconst(). */
41
42	#include <VBox/com/array.h>
43
44
45	/**
46	* Base class for a source task.
47	*/
48	class GuestDnDSourceTask : public ThreadTask
49	{
50	public:
51
52	GuestDnDSourceTask(GuestDnDSource *pSource)
53	: ThreadTask("GenericGuestDnDSourceTask")
54	, mSource(pSource)
55	, mRC(VINF_SUCCESS) { }
56
57	virtual ~GuestDnDSourceTask(void) { }
58
59	int getRC(void) const { return mRC; }
60	bool isOk(void) const { return RT_SUCCESS(mRC); }
61	const ComObjPtr<GuestDnDSource> &getSource(void) const { return mSource; }
62
63	protected:
64
65	const ComObjPtr<GuestDnDSource> mSource;
66	int mRC;
67	};
68
69	/**
70	* Task structure for receiving data from a source using
71	* a worker thread.
72	*/
73	class RecvDataTask : public GuestDnDSourceTask
74	{
75	public:
76
77	RecvDataTask(GuestDnDSource *pSource, PRECVDATACTX pCtx)
78	: GuestDnDSourceTask(pSource)
79	, mpCtx(pCtx)
80	{
81	m_strTaskName = "dndSrcRcvData";
82	}
83
84	void handler()
85	{
86	GuestDnDSource::i_receiveDataThreadTask(this);
87	}
88
89	virtual ~RecvDataTask(void) { }
90
91	PRECVDATACTX getCtx(void) { return mpCtx; }
92
93	protected:
94
95	/** Pointer to receive data context. */
96	PRECVDATACTX mpCtx;
97	};
98
99	// constructor / destructor
100	/////////////////////////////////////////////////////////////////////////////
101
102	DEFINE_EMPTY_CTOR_DTOR(GuestDnDSource)
103
104	HRESULT GuestDnDSource::FinalConstruct(void)
105	{
106	/*
107	* Set the maximum block size this source can handle to 64K. This always has
108	* been hardcoded until now.
109	*
110	* Note: Never ever rely on information from the guest; the host dictates what and
111	* how to do something, so try to negogiate a sensible value here later.
112	*/
113	mData.mcbBlockSize = _64K; /** @todo Make this configurable. */
114
115	LogFlowThisFunc(("\n"));
116	return BaseFinalConstruct();
117	}
118
119	void GuestDnDSource::FinalRelease(void)
120	{
121	LogFlowThisFuncEnter();
122	uninit();
123	BaseFinalRelease();
124	LogFlowThisFuncLeave();
125	}
126
127	// public initializer/uninitializer for internal purposes only
128	/////////////////////////////////////////////////////////////////////////////
129
130	int GuestDnDSource::init(const ComObjPtr<Guest>& pGuest)
131	{
132	LogFlowThisFuncEnter();
133
134	/* Enclose the state transition NotReady->InInit->Ready. */
135	AutoInitSpan autoInitSpan(this);
136	AssertReturn(autoInitSpan.isOk(), E_FAIL);
137
138	unconst(m_pGuest) = pGuest;
139
140	/* Confirm a successful initialization when it's the case. */
141	autoInitSpan.setSucceeded();
142
143	return VINF_SUCCESS;
144	}
145
146	/**
147	* Uninitializes the instance.
148	* Called from FinalRelease().
149	*/
150	void GuestDnDSource::uninit(void)
151	{
152	LogFlowThisFunc(("\n"));
153
154	/* Enclose the state transition Ready->InUninit->NotReady. */
155	AutoUninitSpan autoUninitSpan(this);
156	if (autoUninitSpan.uninitDone())
157	return;
158	}
159
160	// implementation of wrapped IDnDBase methods.
161	/////////////////////////////////////////////////////////////////////////////
162
163	HRESULT GuestDnDSource::isFormatSupported(const com::Utf8Str &aFormat, BOOL *aSupported)
164	{
165	#if !defined(VBOX_WITH_DRAG_AND_DROP) \|\| !defined(VBOX_WITH_DRAG_AND_DROP_GH)
166	ReturnComNotImplemented();
167	#else /* VBOX_WITH_DRAG_AND_DROP */
168
169	AutoCaller autoCaller(this);
170	if (FAILED(autoCaller.rc())) return autoCaller.rc();
171
172	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
173
174	return GuestDnDBase::i_isFormatSupported(aFormat, aSupported);
175	#endif /* VBOX_WITH_DRAG_AND_DROP */
176	}
177
178	HRESULT GuestDnDSource::getFormats(GuestDnDMIMEList &aFormats)
179	{
180	#if !defined(VBOX_WITH_DRAG_AND_DROP) \|\| !defined(VBOX_WITH_DRAG_AND_DROP_GH)
181	ReturnComNotImplemented();
182	#else /* VBOX_WITH_DRAG_AND_DROP */
183
184	AutoCaller autoCaller(this);
185	if (FAILED(autoCaller.rc())) return autoCaller.rc();
186
187	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
188
189	return GuestDnDBase::i_getFormats(aFormats);
190	#endif /* VBOX_WITH_DRAG_AND_DROP */
191	}
192
193	HRESULT GuestDnDSource::addFormats(const GuestDnDMIMEList &aFormats)
194	{
195	#if !defined(VBOX_WITH_DRAG_AND_DROP) \|\| !defined(VBOX_WITH_DRAG_AND_DROP_GH)
196	ReturnComNotImplemented();
197	#else /* VBOX_WITH_DRAG_AND_DROP */
198
199	AutoCaller autoCaller(this);
200	if (FAILED(autoCaller.rc())) return autoCaller.rc();
201
202	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
203
204	return GuestDnDBase::i_addFormats(aFormats);
205	#endif /* VBOX_WITH_DRAG_AND_DROP */
206	}
207
208	HRESULT GuestDnDSource::removeFormats(const GuestDnDMIMEList &aFormats)
209	{
210	#if !defined(VBOX_WITH_DRAG_AND_DROP) \|\| !defined(VBOX_WITH_DRAG_AND_DROP_GH)
211	ReturnComNotImplemented();
212	#else /* VBOX_WITH_DRAG_AND_DROP */
213
214	AutoCaller autoCaller(this);
215	if (FAILED(autoCaller.rc())) return autoCaller.rc();
216
217	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
218
219	return GuestDnDBase::i_removeFormats(aFormats);
220	#endif /* VBOX_WITH_DRAG_AND_DROP */
221	}
222
223	HRESULT GuestDnDSource::getProtocolVersion(ULONG *aProtocolVersion)
224	{
225	#if !defined(VBOX_WITH_DRAG_AND_DROP)
226	ReturnComNotImplemented();
227	#else /* VBOX_WITH_DRAG_AND_DROP */
228
229	AutoCaller autoCaller(this);
230	if (FAILED(autoCaller.rc())) return autoCaller.rc();
231
232	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
233
234	return GuestDnDBase::i_getProtocolVersion(aProtocolVersion);
235	#endif /* VBOX_WITH_DRAG_AND_DROP */
236	}
237
238	// implementation of wrapped IDnDSource methods.
239	/////////////////////////////////////////////////////////////////////////////
240
241	HRESULT GuestDnDSource::dragIsPending(ULONG uScreenId, GuestDnDMIMEList &aFormats,
242	std::vector<DnDAction_T> &aAllowedActions, DnDAction_T *aDefaultAction)
243	{
244	#if !defined(VBOX_WITH_DRAG_AND_DROP) \|\| !defined(VBOX_WITH_DRAG_AND_DROP_GH)
245	ReturnComNotImplemented();
246	#else /* VBOX_WITH_DRAG_AND_DROP */
247
248	/* aDefaultAction is optional. */
249
250	AutoCaller autoCaller(this);
251	if (FAILED(autoCaller.rc())) return autoCaller.rc();
252
253	/* Determine guest DnD protocol to use. */
254	GuestDnDBase::getProtocolVersion(&mDataBase.m_uProtocolVersion);
255
256	/* Default is ignoring the action. */
257	if (aDefaultAction)
258	*aDefaultAction = DnDAction_Ignore;
259
260	HRESULT hr = S_OK;
261
262	GuestDnDMsg Msg;
263	Msg.setType(HOST_DND_GH_REQ_PENDING);
264	if (mDataBase.m_uProtocolVersion >= 3)
265	Msg.setNextUInt32(0); /** @todo ContextID not used yet. */
266	Msg.setNextUInt32(uScreenId);
267
268	int rc = GuestDnDInst()->hostCall(Msg.getType(), Msg.getCount(), Msg.getParms());
269	if (RT_SUCCESS(rc))
270	{
271	GuestDnDResponse *pResp = GuestDnDInst()->response();
272	AssertPtr(pResp);
273
274	bool fFetchResult = true;
275
276	rc = pResp->waitForGuestResponse(100 /* Timeout in ms */);
277	if (RT_FAILURE(rc))
278	fFetchResult = false;
279
280	if ( fFetchResult
281	&& isDnDIgnoreAction(pResp->defAction()))
282	fFetchResult = false;
283
284	/* Fetch the default action to use. */
285	if (fFetchResult)
286	{
287	/*
288	* In the GuestDnDSource case the source formats are from the guest,
289	* as GuestDnDSource acts as a target for the guest. The host always
290	* dictates what's supported and what's not, so filter out all formats
291	* which are not supported by the host.
292	*/
293	GuestDnDMIMEList lstFiltered = GuestDnD::toFilteredFormatList(m_lstFmtSupported, pResp->formats());
294	if (lstFiltered.size())
295	{
296	LogRel3(("DnD: Host offered the following formats:\n"));
297	for (size_t i = 0; i < lstFiltered.size(); i++)
298	LogRel3(("DnD:\tFormat #%zu: %s\n", i, lstFiltered.at(i).c_str()));
299
300	aFormats = lstFiltered;
301	aAllowedActions = GuestDnD::toMainActions(pResp->allActions());
302	if (aDefaultAction)
303	*aDefaultAction = GuestDnD::toMainAction(pResp->defAction());
304
305	/* Apply the (filtered) formats list. */
306	m_lstFmtOffered = lstFiltered;
307	}
308	else
309	LogRel2(("DnD: Negotiation of formats between guest and host failed, drag and drop to host not possible\n"));
310	}
311
312	LogFlowFunc(("fFetchResult=%RTbool, allActions=0x%x\n", fFetchResult, pResp->allActions()));
313	}
314
315	LogFlowFunc(("hr=%Rhrc\n", hr));
316	return hr;
317	#endif /* VBOX_WITH_DRAG_AND_DROP */
318	}
319
320	HRESULT GuestDnDSource::drop(const com::Utf8Str &aFormat, DnDAction_T aAction, ComPtr<IProgress> &aProgress)
321	{
322	#if !defined(VBOX_WITH_DRAG_AND_DROP) \|\| !defined(VBOX_WITH_DRAG_AND_DROP_GH)
323	ReturnComNotImplemented();
324	#else /* VBOX_WITH_DRAG_AND_DROP */
325
326	AutoCaller autoCaller(this);
327	if (FAILED(autoCaller.rc())) return autoCaller.rc();
328
329	LogFunc(("aFormat=%s, aAction=%RU32\n", aFormat.c_str(), aAction));
330
331	/* Input validation. */
332	if (RT_UNLIKELY((aFormat.c_str()) == NULL \|\| *(aFormat.c_str()) == '\0'))
333	return setError(E_INVALIDARG, tr("No drop format specified"));
334
335	/* Is the specified format in our list of (left over) offered formats? */
336	if (!GuestDnD::isFormatInFormatList(aFormat, m_lstFmtOffered))
337	return setError(E_INVALIDARG, tr("Specified format '%s' is not supported"), aFormat.c_str());
338
339	uint32_t uAction = GuestDnD::toHGCMAction(aAction);
340	if (isDnDIgnoreAction(uAction)) /* If there is no usable action, ignore this request. */
341	return S_OK;
342
343	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
344
345	/* At the moment we only support one transfer at a time. */
346	if (mDataBase.m_cTransfersPending)
347	return setError(E_INVALIDARG, tr("Another drop operation already is in progress"));
348
349	/* Dito. */
350	GuestDnDResponse *pResp = GuestDnDInst()->response();
351	AssertPtr(pResp);
352
353	HRESULT hr = pResp->resetProgress(m_pGuest);
354	if (FAILED(hr))
355	return hr;
356
357	RecvDataTask *pTask = NULL;
358
359	try
360	{
361	mData.mRecvCtx.mIsActive = false;
362	mData.mRecvCtx.mpSource = this;
363	mData.mRecvCtx.mpResp = pResp;
364	mData.mRecvCtx.mFmtReq = aFormat;
365	mData.mRecvCtx.mFmtOffered = m_lstFmtOffered;
366
367	LogRel2(("DnD: Requesting data from guest in format: %s\n", aFormat.c_str()));
368
369	pTask = new RecvDataTask(this, &mData.mRecvCtx);
370	if (!pTask->isOk())
371	{
372	delete pTask;
373	LogRel2(("DnD: Could not create RecvDataTask object \n"));
374	throw hr = E_FAIL;
375	}
376
377	/* This function delete pTask in case of exceptions,
378	* so there is no need in the call of delete operator. */
379	hr = pTask->createThreadWithType(RTTHREADTYPE_MAIN_WORKER);
380
381	}
382	catch (std::bad_alloc &)
383	{
384	hr = setError(E_OUTOFMEMORY);
385	}
386	catch (...)
387	{
388	LogRel2(("DnD: Could not create thread for data receiving task\n"));
389	hr = E_FAIL;
390	}
391
392	if (SUCCEEDED(hr))
393	{
394	mDataBase.m_cTransfersPending++;
395
396	hr = pResp->queryProgressTo(aProgress.asOutParam());
397	ComAssertComRC(hr);
398
399	/* Note: pTask is now owned by the worker thread. */
400	}
401	else
402	hr = setError(VBOX_E_IPRT_ERROR, tr("Starting thread for GuestDnDSource::i_receiveDataThread failed (%Rhrc)"), hr);
403	/* Note: mDataBase.mfTransferIsPending will be set to false again by i_receiveDataThread. */
404
405	LogFlowFunc(("Returning hr=%Rhrc\n", hr));
406	return hr;
407	#endif /* VBOX_WITH_DRAG_AND_DROP */
408	}
409
410	HRESULT GuestDnDSource::receiveData(std::vector<BYTE> &aData)
411	{
412	#if !defined(VBOX_WITH_DRAG_AND_DROP) \|\| !defined(VBOX_WITH_DRAG_AND_DROP_GH)
413	ReturnComNotImplemented();
414	#else /* VBOX_WITH_DRAG_AND_DROP */
415
416	AutoCaller autoCaller(this);
417	if (FAILED(autoCaller.rc())) return autoCaller.rc();
418
419	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
420
421	LogFlowThisFunc(("cTransfersPending=%RU32\n", mDataBase.m_cTransfersPending));
422
423	/* Don't allow receiving the actual data until our transfer actually is complete. */
424	if (mDataBase.m_cTransfersPending)
425	return setError(E_FAIL, tr("Current drop operation still in progress"));
426
427	PRECVDATACTX pCtx = &mData.mRecvCtx;
428	HRESULT hr = S_OK;
429
430	try
431	{
432	bool fHasURIList = DnDMIMENeedsDropDir(pCtx->mFmtRecv.c_str(), pCtx->mFmtRecv.length());
433	if (fHasURIList)
434	{
435	LogRel2(("DnD: Drop directory is: %s\n", pCtx->mURI.getDroppedFiles().GetDirAbs()));
436	int rc2 = pCtx->mURI.toMetaData(aData);
437	if (RT_FAILURE(rc2))
438	hr = E_OUTOFMEMORY;
439	}
440	else
441	{
442	const size_t cbData = pCtx->mData.getMeta().getSize();
443	LogFlowFunc(("cbData=%zu\n", cbData));
444	if (cbData)
445	{
446	/* Copy the data into a safe array of bytes. */
447	aData.resize(cbData);
448	memcpy(&aData.front(), pCtx->mData.getMeta().getData(), cbData);
449	}
450	else
451	aData.resize(0);
452	}
453	}
454	catch (std::bad_alloc &)
455	{
456	hr = E_OUTOFMEMORY;
457	}
458
459	LogFlowFunc(("Returning hr=%Rhrc\n", hr));
460	return hr;
461	#endif /* VBOX_WITH_DRAG_AND_DROP */
462	}
463
464	// implementation of internal methods.
465	/////////////////////////////////////////////////////////////////////////////
466
467	/* static */
468	Utf8Str GuestDnDSource::i_guestErrorToString(int guestRc)
469	{
470	Utf8Str strError;
471
472	switch (guestRc)
473	{
474	case VERR_ACCESS_DENIED:
475	strError += Utf8StrFmt(tr("For one or more guest files or directories selected for transferring to the host your guest "
476	"user does not have the appropriate access rights for. Please make sure that all selected "
477	"elements can be accessed and that your guest user has the appropriate rights"));
478	break;
479
480	case VERR_NOT_FOUND:
481	/* Should not happen due to file locking on the guest, but anyway ... */
482	strError += Utf8StrFmt(tr("One or more guest files or directories selected for transferring to the host were not"
483	"found on the guest anymore. This can be the case if the guest files were moved and/or"
484	"altered while the drag and drop operation was in progress"));
485	break;
486
487	case VERR_SHARING_VIOLATION:
488	strError += Utf8StrFmt(tr("One or more guest files or directories selected for transferring to the host were locked. "
489	"Please make sure that all selected elements can be accessed and that your guest user has "
490	"the appropriate rights"));
491	break;
492
493	case VERR_TIMEOUT:
494	strError += Utf8StrFmt(tr("The guest was not able to retrieve the drag and drop data within time"));
495	break;
496
497	default:
498	strError += Utf8StrFmt(tr("Drag and drop error from guest (%Rrc)"), guestRc);
499	break;
500	}
501
502	return strError;
503	}
504
505	/* static */
506	Utf8Str GuestDnDSource::i_hostErrorToString(int hostRc)
507	{
508	Utf8Str strError;
509
510	switch (hostRc)
511	{
512	case VERR_ACCESS_DENIED:
513	strError += Utf8StrFmt(tr("For one or more host files or directories selected for transferring to the guest your host "
514	"user does not have the appropriate access rights for. Please make sure that all selected "
515	"elements can be accessed and that your host user has the appropriate rights."));
516	break;
517
518	case VERR_DISK_FULL:
519	strError += Utf8StrFmt(tr("Host disk ran out of space (disk is full)."));
520	break;
521
522	case VERR_NOT_FOUND:
523	/* Should not happen due to file locking on the host, but anyway ... */
524	strError += Utf8StrFmt(tr("One or more host files or directories selected for transferring to the host were not"
525	"found on the host anymore. This can be the case if the host files were moved and/or"
526	"altered while the drag and drop operation was in progress."));
527	break;
528
529	case VERR_SHARING_VIOLATION:
530	strError += Utf8StrFmt(tr("One or more host files or directories selected for transferring to the guest were locked. "
531	"Please make sure that all selected elements can be accessed and that your host user has "
532	"the appropriate rights."));
533	break;
534
535	default:
536	strError += Utf8StrFmt(tr("Drag and drop error from host (%Rrc)"), hostRc);
537	break;
538	}
539
540	return strError;
541	}
542
543	#ifdef VBOX_WITH_DRAG_AND_DROP_GH
544	int GuestDnDSource::i_onReceiveDataHdr(PRECVDATACTX pCtx, PVBOXDNDSNDDATAHDR pDataHdr)
545	{
546	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
547	AssertReturn(pDataHdr, VERR_INVALID_POINTER);
548
549	pCtx->mData.setEstimatedSize(pDataHdr->cbTotal, pDataHdr->cbMeta);
550
551	Assert(pCtx->mURI.getObjToProcess() == 0);
552	pCtx->mURI.reset();
553	pCtx->mURI.setEstimatedObjects(pDataHdr->cObjects);
554
555	/** @todo Handle compression type. */
556	/** @todo Handle checksum type. */
557
558	LogFlowFuncLeave();
559	return VINF_SUCCESS;
560	}
561
562	int GuestDnDSource::i_onReceiveData(PRECVDATACTX pCtx, PVBOXDNDSNDDATA pSndData)
563	{
564	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
565	AssertPtrReturn(pSndData, VERR_INVALID_POINTER);
566
567	int rc = VINF_SUCCESS;
568
569	try
570	{
571	GuestDnDData *pData = &pCtx->mData;
572	GuestDnDURIData *pURI = &pCtx->mURI;
573
574	uint32_t cbData;
575	void *pvData;
576	uint64_t cbTotal;
577	uint32_t cbMeta;
578
579	if (mDataBase.m_uProtocolVersion < 3)
580	{
581	cbData = pSndData->u.v1.cbData;
582	pvData = pSndData->u.v1.pvData;
583
584	/* Sends the total data size to receive for every data chunk. */
585	cbTotal = pSndData->u.v1.cbTotalSize;
586
587	/* Meta data size always is cbData, meaning there cannot be an
588	* extended data chunk transfer by sending further data. */
589	cbMeta = cbData;
590	}
591	else
592	{
593	cbData = pSndData->u.v3.cbData;
594	pvData = pSndData->u.v3.pvData;
595
596	/* Note: Data sizes get updated in i_onReceiveDataHdr(). */
597	cbTotal = pData->getTotal();
598	cbMeta = pData->getMeta().getSize();
599	}
600	Assert(cbTotal);
601
602	if ( cbData == 0
603	\|\| cbData > cbTotal /* Paranoia */)
604	{
605	LogFlowFunc(("Incoming data size invalid: cbData=%RU32, cbToProcess=%RU64\n", cbData, pData->getTotal()));
606	rc = VERR_INVALID_PARAMETER;
607	}
608	else if (cbTotal < cbMeta)
609	{
610	AssertMsgFailed(("cbTotal (%RU64) is smaller than cbMeta (%RU32)\n", cbTotal, cbMeta));
611	rc = VERR_INVALID_PARAMETER;
612	}
613
614	if (RT_SUCCESS(rc))
615	{
616	cbMeta = pData->getMeta().add(pvData, cbData);
617	LogFlowThisFunc(("cbMetaSize=%zu, cbData=%RU32, cbMeta=%RU32, cbTotal=%RU64\n",
618	pData->getMeta().getSize(), cbData, cbMeta, cbTotal));
619	}
620
621	if (RT_SUCCESS(rc))
622	{
623	/*
624	* (Meta) Data transfer complete?
625	*/
626	Assert(cbMeta <= pData->getMeta().getSize());
627	if (cbMeta == pData->getMeta().getSize())
628	{
629	bool fHasURIList = DnDMIMENeedsDropDir(pCtx->mFmtRecv.c_str(), pCtx->mFmtRecv.length());
630	LogFlowThisFunc(("fHasURIList=%RTbool\n", fHasURIList));
631	if (fHasURIList)
632	{
633	/* Try parsing the data as URI list. */
634	rc = pURI->fromRemoteMetaData(pData->getMeta());
635	if (RT_SUCCESS(rc))
636	{
637	if (mDataBase.m_uProtocolVersion < 3)
638	pData->setEstimatedSize(cbTotal, cbMeta);
639
640	/*
641	* Update our process with the data we already received.
642	* Note: The total size will consist of the meta data (in pVecData) and
643	* the actual accumulated file/directory data from the guest.
644	*/
645	rc = updateProgress(pData, pCtx->mpResp, (uint32_t)pData->getMeta().getSize());
646	}
647	}
648	else /* Raw data. */
649	rc = updateProgress(pData, pCtx->mpResp, cbData);
650	}
651	}
652	}
653	catch (std::bad_alloc &)
654	{
655	rc = VERR_NO_MEMORY;
656	}
657
658	LogFlowFuncLeaveRC(rc);
659	return rc;
660	}
661
662	int GuestDnDSource::i_onReceiveDir(PRECVDATACTX pCtx, const char *pszPath, uint32_t cbPath, uint32_t fMode)
663	{
664	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
665	AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
666	AssertReturn(cbPath, VERR_INVALID_PARAMETER);
667
668	LogFlowFunc(("pszPath=%s, cbPath=%RU32, fMode=0x%x\n", pszPath, cbPath, fMode));
669
670	/*
671	* Sanity checking.
672	*/
673	if ( !cbPath
674	\|\| cbPath > RTPATH_MAX)
675	{
676	LogFlowFunc(("Path length invalid, bailing out\n"));
677	return VERR_INVALID_PARAMETER;
678	}
679
680	int rc = RTStrValidateEncodingEx(pszPath, RTSTR_MAX, 0);
681	if (RT_FAILURE(rc))
682	{
683	LogFlowFunc(("Path validation failed with %Rrc, bailing out\n", rc));
684	return VERR_INVALID_PARAMETER;
685	}
686
687	if (pCtx->mURI.isComplete())
688	{
689	LogFlowFunc(("Data transfer already complete, bailing out\n"));
690	return VERR_INVALID_PARAMETER;
691	}
692
693	GuestDnDURIObjCtx &objCtx = pCtx->mURI.getObj(0); /** @todo Fill in context ID. */
694
695	rc = objCtx.createIntermediate(DnDURIObject::Directory);
696	if (RT_FAILURE(rc))
697	return rc;
698
699	DnDURIObject *pObj = objCtx.getObj();
700	AssertPtr(pObj);
701
702	const char *pszDroppedFilesDir = pCtx->mURI.getDroppedFiles().GetDirAbs();
703	char *pszDir = RTPathJoinA(pszDroppedFilesDir, pszPath);
704	if (pszDir)
705	{
706	#ifdef RT_OS_WINDOWS
707	RTPathChangeToDosSlashes(pszDir, true /* fForce */);
708	#else
709	RTPathChangeToDosSlashes(pszDir, true /* fForce */);
710	#endif
711	rc = RTDirCreateFullPath(pszDir, fMode);
712	if (RT_SUCCESS(rc))
713	{
714	pCtx->mURI.processObject(*pObj);
715
716	/* Add for having a proper rollback. */
717	int rc2 = pCtx->mURI.getDroppedFiles().AddDir(pszDir);
718	AssertRC(rc2);
719
720	objCtx.reset();
721	LogRel2(("DnD: Created guest directory on host: %s\n", pszDir));
722	}
723	else
724	LogRel(("DnD: Error creating guest directory '%s' on host, rc=%Rrc\n", pszDir, rc));
725
726	RTStrFree(pszDir);
727	}
728	else
729	rc = VERR_NO_MEMORY;
730
731	LogFlowFuncLeaveRC(rc);
732	return rc;
733	}
734
735	int GuestDnDSource::i_onReceiveFileHdr(PRECVDATACTX pCtx, const char *pszPath, uint32_t cbPath,
736	uint64_t cbSize, uint32_t fMode, uint32_t fFlags)
737	{
738	RT_NOREF(fFlags);
739	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
740	AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
741	AssertReturn(cbPath, VERR_INVALID_PARAMETER);
742	AssertReturn(fMode, VERR_INVALID_PARAMETER);
743	/* fFlags are optional. */
744
745	LogFlowFunc(("pszPath=%s, cbPath=%RU32, cbSize=%RU64, fMode=0x%x, fFlags=0x%x\n", pszPath, cbPath, cbSize, fMode, fFlags));
746
747	/*
748	* Sanity checking.
749	*/
750	if ( !cbPath
751	\|\| cbPath > RTPATH_MAX)
752	{
753	return VERR_INVALID_PARAMETER;
754	}
755
756	if (!RTStrIsValidEncoding(pszPath))
757	return VERR_INVALID_PARAMETER;
758
759	if (cbSize > pCtx->mData.getTotal())
760	{
761	AssertMsgFailed(("File size (%RU64) exceeds total size to transfer (%RU64)\n", cbSize, pCtx->mData.getTotal()));
762	return VERR_INVALID_PARAMETER;
763	}
764
765	if (pCtx->mURI.getObjToProcess() && pCtx->mURI.isComplete())
766	return VERR_INVALID_PARAMETER;
767
768	int rc = VINF_SUCCESS;
769
770	do
771	{
772	GuestDnDURIObjCtx &objCtx = pCtx->mURI.getObj(0); /** @todo Fill in context ID. */
773	DnDURIObject *pObj = objCtx.getObj();
774
775	/*
776	* Sanity checking.
777	*/
778	if (pObj)
779	{
780	if ( pObj->IsOpen()
781	&& !pObj->IsComplete())
782	{
783	AssertMsgFailed(("Object '%s' not complete yet\n", pObj->GetDestPath().c_str()));
784	rc = VERR_WRONG_ORDER;
785	break;
786	}
787
788	if (pObj->IsOpen()) /* File already opened? */
789	{
790	AssertMsgFailed(("Current opened object is '%s', close this first\n", pObj->GetDestPath().c_str()));
791	rc = VERR_WRONG_ORDER;
792	break;
793	}
794	}
795	else
796	{
797	/*
798	* Create new intermediate object to work with.
799	*/
800	rc = objCtx.createIntermediate();
801	}
802
803	if (RT_SUCCESS(rc))
804	{
805	pObj = objCtx.getObj();
806	AssertPtr(pObj);
807
808	const char *pszDroppedFilesDir = pCtx->mURI.getDroppedFiles().GetDirAbs();
809	AssertPtr(pszDroppedFilesDir);
810
811	char pszPathAbs[RTPATH_MAX];
812	rc = RTPathJoin(pszPathAbs, sizeof(pszPathAbs), pszDroppedFilesDir, pszPath);
813	if (RT_FAILURE(rc))
814	{
815	LogFlowFunc(("Warning: Rebasing current file failed with rc=%Rrc\n", rc));
816	break;
817	}
818
819	rc = DnDPathSanitize(pszPathAbs, sizeof(pszPathAbs));
820	if (RT_FAILURE(rc))
821	{
822	LogFlowFunc(("Warning: Rebasing current file failed with rc=%Rrc\n", rc));
823	break;
824	}
825
826	LogFunc(("Rebased to: %s\n", pszPathAbs));
827
828	/** @todo Add sparse file support based on fFlags? (Use Open(..., fFlags \| SPARSE). */
829	rc = pObj->OpenEx(pszPathAbs, DnDURIObject::File, DnDURIObject::Target,
830	RTFILE_O_CREATE_REPLACE \| RTFILE_O_WRITE \| RTFILE_O_DENY_WRITE,
831	(fMode & RTFS_UNIX_MASK) \| RTFS_UNIX_IRUSR \| RTFS_UNIX_IWUSR);
832	if (RT_SUCCESS(rc))
833	{
834	/* Add for having a proper rollback. */
835	int rc2 = pCtx->mURI.getDroppedFiles().AddFile(pszPathAbs);
836	AssertRC(rc2);
837	}
838	}
839
840	if (RT_SUCCESS(rc))
841	{
842	/* Note: Protocol v1 does not send any file sizes, so always 0. */
843	if (mDataBase.m_uProtocolVersion >= 2)
844	rc = pObj->SetSize(cbSize);
845
846	/** @todo Unescpae path before printing. */
847	LogRel2(("DnD: Transferring guest file to host: %s (%RU64 bytes, mode 0x%x)\n",
848	pObj->GetDestPath().c_str(), pObj->GetSize(), pObj->GetMode()));
849
850	/** @todo Set progress object title to current file being transferred? */
851
852	if (!cbSize) /* 0-byte file? Close again. */
853	pObj->Close();
854	}
855
856	if (RT_FAILURE(rc))
857	{
858	LogRel2(("DnD: Error opening/creating guest file '%s' on host, rc=%Rrc\n",
859	pObj->GetDestPath().c_str(), rc));
860	break;
861	}
862
863	} while (0);
864
865	LogFlowFuncLeaveRC(rc);
866	return rc;
867	}
868
869	int GuestDnDSource::i_onReceiveFileData(PRECVDATACTX pCtx, const void *pvData, uint32_t cbData)
870	{
871	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
872	AssertPtrReturn(pvData, VERR_INVALID_POINTER);
873	AssertReturn(cbData, VERR_INVALID_PARAMETER);
874
875	int rc = VINF_SUCCESS;
876
877	LogFlowFunc(("pvData=%p, cbData=%RU32, cbBlockSize=%RU32\n", pvData, cbData, mData.mcbBlockSize));
878
879	/*
880	* Sanity checking.
881	*/
882	if (cbData > mData.mcbBlockSize)
883	return VERR_INVALID_PARAMETER;
884
885	do
886	{
887	GuestDnDURIObjCtx &objCtx = pCtx->mURI.getObj(0); /** @todo Fill in context ID. */
888	DnDURIObject *pObj = objCtx.getObj();
889
890	if (!pObj)
891	{
892	LogFlowFunc(("Warning: No current object set\n"));
893	rc = VERR_WRONG_ORDER;
894	break;
895	}
896
897	if (pObj->IsComplete())
898	{
899	LogFlowFunc(("Warning: Object '%s' already completed\n", pObj->GetDestPath().c_str()));
900	rc = VERR_WRONG_ORDER;
901	break;
902	}
903
904	if (!pObj->IsOpen()) /* File opened on host? */
905	{
906	LogFlowFunc(("Warning: Object '%s' not opened\n", pObj->GetDestPath().c_str()));
907	rc = VERR_WRONG_ORDER;
908	break;
909	}
910
911	uint32_t cbWritten;
912	rc = pObj->Write(pvData, cbData, &cbWritten);
913	if (RT_SUCCESS(rc))
914	{
915	Assert(cbWritten <= cbData);
916	if (cbWritten < cbData)
917	{
918	/** @todo What to do when the host's disk is full? */
919	rc = VERR_DISK_FULL;
920	}
921
922	if (RT_SUCCESS(rc))
923	rc = updateProgress(&pCtx->mData, pCtx->mpResp, cbWritten);
924	}
925	else /* Something went wrong; close the object. */
926	pObj->Close();
927
928	if (RT_SUCCESS(rc))
929	{
930	if (pObj->IsComplete())
931	{
932	/** @todo Sanitize path. */
933	LogRel2(("DnD: File transfer to host complete: %s\n", pObj->GetDestPath().c_str()));
934	pCtx->mURI.processObject(*pObj);
935	objCtx.reset();
936	}
937	}
938	else
939	{
940	/** @todo What to do when the host's disk is full? */
941	LogRel(("DnD: Error writing guest file to host to '%s': %Rrc\n", pObj->GetDestPath().c_str(), rc));
942	}
943
944	} while (0);
945
946	LogFlowFuncLeaveRC(rc);
947	return rc;
948	}
949	#endif /* VBOX_WITH_DRAG_AND_DROP_GH */
950
951	/**
952	* @returns VBox status code that the caller ignores. Not sure if that's
953	* intentional or not.
954	*/
955	int GuestDnDSource::i_receiveData(PRECVDATACTX pCtx, RTMSINTERVAL msTimeout)
956	{
957	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
958
959	/* Is this context already in receiving state? */
960	if (ASMAtomicReadBool(&pCtx->mIsActive))
961	return VERR_WRONG_ORDER;
962	ASMAtomicWriteBool(&pCtx->mIsActive, true);
963
964	GuestDnD *pInst = GuestDnDInst();
965	if (!pInst)
966	return VERR_INVALID_POINTER;
967
968	GuestDnDResponse *pResp = pCtx->mpResp;
969	AssertPtr(pCtx->mpResp);
970
971	int rc = pCtx->mCBEvent.Reset();
972	if (RT_FAILURE(rc))
973	return rc;
974
975	/*
976	* Reset any old data.
977	*/
978	pCtx->mData.reset();
979	pCtx->mURI.reset();
980	pResp->reset();
981
982	/*
983	* Do we need to receive a different format than initially requested?
984	*
985	* For example, receiving a file link as "text/plain" requires still to receive
986	* the file from the guest as "text/uri-list" first, then pointing to
987	* the file path on the host in the "text/plain" data returned.
988	*/
989
990	bool fFoundFormat = true; /* Whether we've found a common format between host + guest. */
991
992	LogFlowFunc(("mFmtReq=%s, mFmtRecv=%s, mAction=0x%x\n",
993	pCtx->mFmtReq.c_str(), pCtx->mFmtRecv.c_str(), pCtx->mAction));
994
995	/* Plain text wanted? */
996	if ( pCtx->mFmtReq.equalsIgnoreCase("text/plain")
997	\|\| pCtx->mFmtReq.equalsIgnoreCase("text/plain;charset=utf-8"))
998	{
999	/* Did the guest offer a file? Receive a file instead. */
1000	if (GuestDnD::isFormatInFormatList("text/uri-list", pCtx->mFmtOffered))
1001	pCtx->mFmtRecv = "text/uri-list";
1002	/* Guest only offers (plain) text. */
1003	else
1004	pCtx->mFmtRecv = "text/plain;charset=utf-8";
1005
1006	/** @todo Add more conversions here. */
1007	}
1008	/* File(s) wanted? */
1009	else if (pCtx->mFmtReq.equalsIgnoreCase("text/uri-list"))
1010	{
1011	/* Does the guest support sending files? */
1012	if (GuestDnD::isFormatInFormatList("text/uri-list", pCtx->mFmtOffered))
1013	pCtx->mFmtRecv = "text/uri-list";
1014	else /* Bail out. */
1015	fFoundFormat = false;
1016	}
1017
1018	if (fFoundFormat)
1019	{
1020	Assert(!pCtx->mFmtReq.isEmpty());
1021	Assert(!pCtx->mFmtRecv.isEmpty());
1022
1023	if (!pCtx->mFmtRecv.equals(pCtx->mFmtReq))
1024	LogRel3(("DnD: Requested data in format '%s', receiving in intermediate format '%s' now\n",
1025	pCtx->mFmtReq.c_str(), pCtx->mFmtRecv.c_str()));
1026
1027	/*
1028	* Call the appropriate receive handler based on the data format to handle.
1029	*/
1030	bool fURIData = DnDMIMENeedsDropDir(pCtx->mFmtRecv.c_str(), pCtx->mFmtRecv.length());
1031	if (fURIData)
1032	{
1033	rc = i_receiveURIData(pCtx, msTimeout);
1034	}
1035	else
1036	{
1037	rc = i_receiveRawData(pCtx, msTimeout);
1038	}
1039	}
1040	else /* Just inform the user (if verbose release logging is enabled). */
1041	{
1042	LogRel2(("DnD: The guest does not support format '%s':\n", pCtx->mFmtReq.c_str()));
1043	LogRel2(("DnD: Guest offered the following formats:\n"));
1044	for (size_t i = 0; i < pCtx->mFmtOffered.size(); i++)
1045	LogRel2(("DnD:\tFormat #%zu: %s\n", i, pCtx->mFmtOffered.at(i).c_str()));
1046	}
1047
1048	ASMAtomicWriteBool(&pCtx->mIsActive, false);
1049
1050	LogFlowFuncLeaveRC(rc);
1051	return rc;
1052	}
1053
1054	/* static */
1055	void GuestDnDSource::i_receiveDataThreadTask(RecvDataTask *pTask)
1056	{
1057	LogFlowFunc(("pTask=%p\n", pTask));
1058	AssertPtrReturnVoid(pTask);
1059
1060	const ComObjPtr<GuestDnDSource> pThis(pTask->getSource());
1061	Assert(!pThis.isNull());
1062
1063	AutoCaller autoCaller(pThis);
1064	if (FAILED(autoCaller.rc()))
1065	return;
1066
1067	int vrc = pThis->i_receiveData(pTask->getCtx(), RT_INDEFINITE_WAIT /* msTimeout */);
1068	AssertRC(vrc);
1069	/** @todo
1070	*
1071	* r=bird: What happens with @a vrc?
1072	*
1073	*/
1074
1075	AutoWriteLock alock(pThis COMMA_LOCKVAL_SRC_POS);
1076
1077	Assert(pThis->mDataBase.m_cTransfersPending);
1078	if (pThis->mDataBase.m_cTransfersPending)
1079	pThis->mDataBase.m_cTransfersPending--;
1080
1081	LogFlowFunc(("pSource=%p vrc=%Rrc (ignored)\n", (GuestDnDSource *)pThis, vrc));
1082	}
1083
1084	int GuestDnDSource::i_receiveRawData(PRECVDATACTX pCtx, RTMSINTERVAL msTimeout)
1085	{
1086	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1087
1088	int rc;
1089
1090	LogFlowFuncEnter();
1091
1092	GuestDnDResponse *pResp = pCtx->mpResp;
1093	AssertPtr(pCtx->mpResp);
1094
1095	GuestDnD *pInst = GuestDnDInst();
1096	if (!pInst)
1097	return VERR_INVALID_POINTER;
1098
1099	#define REGISTER_CALLBACK(x) \
1100	do { \
1101	rc = pResp->setCallback(x, i_receiveRawDataCallback, pCtx); \
1102	if (RT_FAILURE(rc)) \
1103	return rc; \
1104	} while (0)
1105
1106	#define UNREGISTER_CALLBACK(x) \
1107	do { \
1108	int rc2 = pResp->setCallback(x, NULL); \
1109	AssertRC(rc2); \
1110	} while (0)
1111
1112	/*
1113	* Register callbacks.
1114	*/
1115	REGISTER_CALLBACK(GUEST_DND_CONNECT);
1116	REGISTER_CALLBACK(GUEST_DND_DISCONNECT);
1117	REGISTER_CALLBACK(GUEST_DND_GH_EVT_ERROR);
1118	if (mDataBase.m_uProtocolVersion >= 3)
1119	REGISTER_CALLBACK(GUEST_DND_GH_SND_DATA_HDR);
1120	REGISTER_CALLBACK(GUEST_DND_GH_SND_DATA);
1121
1122	do
1123	{
1124	/*
1125	* Receive the raw data.
1126	*/
1127	GuestDnDMsg Msg;
1128	Msg.setType(HOST_DND_GH_EVT_DROPPED);
1129	if (mDataBase.m_uProtocolVersion >= 3)
1130	Msg.setNextUInt32(0); /** @todo ContextID not used yet. */
1131	Msg.setNextPointer((void*)pCtx->mFmtRecv.c_str(), (uint32_t)pCtx->mFmtRecv.length() + 1);
1132	Msg.setNextUInt32((uint32_t)pCtx->mFmtRecv.length() + 1);
1133	Msg.setNextUInt32(pCtx->mAction);
1134
1135	/* Make the initial call to the guest by telling that we initiated the "dropped" event on
1136	* the host and therefore now waiting for the actual raw data. */
1137	rc = pInst->hostCall(Msg.getType(), Msg.getCount(), Msg.getParms());
1138	if (RT_SUCCESS(rc))
1139	{
1140	rc = waitForEvent(&pCtx->mCBEvent, pCtx->mpResp, msTimeout);
1141	if (RT_SUCCESS(rc))
1142	rc = pCtx->mpResp->setProgress(100, DND_PROGRESS_COMPLETE, VINF_SUCCESS);
1143	}
1144
1145	} while (0);
1146
1147	/*
1148	* Unregister callbacks.
1149	*/
1150	UNREGISTER_CALLBACK(GUEST_DND_CONNECT);
1151	UNREGISTER_CALLBACK(GUEST_DND_DISCONNECT);
1152	UNREGISTER_CALLBACK(GUEST_DND_GH_EVT_ERROR);
1153	if (mDataBase.m_uProtocolVersion >= 3)
1154	UNREGISTER_CALLBACK(GUEST_DND_GH_SND_DATA_HDR);
1155	UNREGISTER_CALLBACK(GUEST_DND_GH_SND_DATA);
1156
1157	#undef REGISTER_CALLBACK
1158	#undef UNREGISTER_CALLBACK
1159
1160	if (RT_FAILURE(rc))
1161	{
1162	if (rc == VERR_CANCELLED)
1163	{
1164	int rc2 = pCtx->mpResp->setProgress(100, DND_PROGRESS_CANCELLED);
1165	AssertRC(rc2);
1166
1167	rc2 = sendCancel();
1168	AssertRC(rc2);
1169	}
1170	else if (rc != VERR_GSTDND_GUEST_ERROR) /* Guest-side error are already handled in the callback. */
1171	{
1172	int rc2 = pCtx->mpResp->setProgress(100, DND_PROGRESS_ERROR,
1173	rc, GuestDnDSource::i_hostErrorToString(rc));
1174	AssertRC(rc2);
1175	}
1176	}
1177
1178	LogFlowFuncLeaveRC(rc);
1179	return rc;
1180	}
1181
1182	int GuestDnDSource::i_receiveURIData(PRECVDATACTX pCtx, RTMSINTERVAL msTimeout)
1183	{
1184	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1185
1186	int rc;
1187
1188	LogFlowFuncEnter();
1189
1190	GuestDnDResponse *pResp = pCtx->mpResp;
1191	AssertPtr(pCtx->mpResp);
1192
1193	GuestDnD *pInst = GuestDnDInst();
1194	if (!pInst)
1195	return VERR_INVALID_POINTER;
1196
1197	#define REGISTER_CALLBACK(x) \
1198	do { \
1199	rc = pResp->setCallback(x, i_receiveURIDataCallback, pCtx); \
1200	if (RT_FAILURE(rc)) \
1201	return rc; \
1202	} while (0)
1203
1204	#define UNREGISTER_CALLBACK(x) \
1205	do { \
1206	int rc2 = pResp->setCallback(x, NULL); \
1207	AssertRC(rc2); \
1208	} while (0)
1209
1210	/*
1211	* Register callbacks.
1212	*/
1213	/* Guest callbacks. */
1214	REGISTER_CALLBACK(GUEST_DND_CONNECT);
1215	REGISTER_CALLBACK(GUEST_DND_DISCONNECT);
1216	REGISTER_CALLBACK(GUEST_DND_GH_EVT_ERROR);
1217	if (mDataBase.m_uProtocolVersion >= 3)
1218	REGISTER_CALLBACK(GUEST_DND_GH_SND_DATA_HDR);
1219	REGISTER_CALLBACK(GUEST_DND_GH_SND_DATA);
1220	REGISTER_CALLBACK(GUEST_DND_GH_SND_DIR);
1221	if (mDataBase.m_uProtocolVersion >= 2)
1222	REGISTER_CALLBACK(GUEST_DND_GH_SND_FILE_HDR);
1223	REGISTER_CALLBACK(GUEST_DND_GH_SND_FILE_DATA);
1224
1225	DnDDroppedFiles &droppedFiles = pCtx->mURI.getDroppedFiles();
1226
1227	do
1228	{
1229	rc = droppedFiles.OpenTemp(0 /* fFlags */);
1230	if (RT_FAILURE(rc))
1231	break;
1232	LogFlowFunc(("rc=%Rrc, strDropDir=%s\n", rc, droppedFiles.GetDirAbs()));
1233	if (RT_FAILURE(rc))
1234	break;
1235
1236	/*
1237	* Receive the URI list.
1238	*/
1239	GuestDnDMsg Msg;
1240	Msg.setType(HOST_DND_GH_EVT_DROPPED);
1241	if (mDataBase.m_uProtocolVersion >= 3)
1242	Msg.setNextUInt32(0); /** @todo ContextID not used yet. */
1243	Msg.setNextPointer((void*)pCtx->mFmtRecv.c_str(), (uint32_t)pCtx->mFmtRecv.length() + 1);
1244	Msg.setNextUInt32((uint32_t)pCtx->mFmtRecv.length() + 1);
1245	Msg.setNextUInt32(pCtx->mAction);
1246
1247	/* Make the initial call to the guest by telling that we initiated the "dropped" event on
1248	* the host and therefore now waiting for the actual URI data. */
1249	rc = pInst->hostCall(Msg.getType(), Msg.getCount(), Msg.getParms());
1250	if (RT_SUCCESS(rc))
1251	{
1252	LogFlowFunc(("Waiting ...\n"));
1253
1254	rc = waitForEvent(&pCtx->mCBEvent, pCtx->mpResp, msTimeout);
1255	if (RT_SUCCESS(rc))
1256	rc = pCtx->mpResp->setProgress(100, DND_PROGRESS_COMPLETE, VINF_SUCCESS);
1257
1258	LogFlowFunc(("Waiting ended with rc=%Rrc\n", rc));
1259	}
1260
1261	} while (0);
1262
1263	/*
1264	* Unregister callbacks.
1265	*/
1266	UNREGISTER_CALLBACK(GUEST_DND_CONNECT);
1267	UNREGISTER_CALLBACK(GUEST_DND_DISCONNECT);
1268	UNREGISTER_CALLBACK(GUEST_DND_GH_EVT_ERROR);
1269	UNREGISTER_CALLBACK(GUEST_DND_GH_SND_DATA_HDR);
1270	UNREGISTER_CALLBACK(GUEST_DND_GH_SND_DATA);
1271	UNREGISTER_CALLBACK(GUEST_DND_GH_SND_DIR);
1272	UNREGISTER_CALLBACK(GUEST_DND_GH_SND_FILE_HDR);
1273	UNREGISTER_CALLBACK(GUEST_DND_GH_SND_FILE_DATA);
1274
1275	#undef REGISTER_CALLBACK
1276	#undef UNREGISTER_CALLBACK
1277
1278	if (RT_FAILURE(rc))
1279	{
1280	if (rc == VERR_CANCELLED)
1281	{
1282	int rc2 = pCtx->mpResp->setProgress(100, DND_PROGRESS_CANCELLED);
1283	AssertRC(rc2);
1284
1285	rc2 = sendCancel();
1286	AssertRC(rc2);
1287	}
1288	else if (rc != VERR_GSTDND_GUEST_ERROR) /* Guest-side error are already handled in the callback. */
1289	{
1290	int rc2 = pCtx->mpResp->setProgress(100, DND_PROGRESS_ERROR,
1291	rc, GuestDnDSource::i_hostErrorToString(rc));
1292	AssertRC(rc2);
1293	}
1294	}
1295
1296	if (RT_FAILURE(rc))
1297	{
1298	int rc2 = droppedFiles.Rollback();
1299	if (RT_FAILURE(rc2))
1300	LogRel(("DnD: Deleting left over temporary files failed (%Rrc). Please remove directory manually: %s\n",
1301	rc2, droppedFiles.GetDirAbs()));
1302	}
1303
1304	droppedFiles.Close();
1305
1306	LogFlowFuncLeaveRC(rc);
1307	return rc;
1308	}
1309
1310	/* static */
1311	DECLCALLBACK(int) GuestDnDSource::i_receiveRawDataCallback(uint32_t uMsg, void pvParms, size_t cbParms, void pvUser)
1312	{
1313	PRECVDATACTX pCtx = (PRECVDATACTX)pvUser;
1314	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1315
1316	GuestDnDSource *pThis = pCtx->mpSource;
1317	AssertPtrReturn(pThis, VERR_INVALID_POINTER);
1318
1319	LogFlowFunc(("pThis=%p, uMsg=%RU32\n", pThis, uMsg));
1320
1321	int rc = VINF_SUCCESS;
1322
1323	int rcCallback = VINF_SUCCESS; /* rc for the callback. */
1324	bool fNotify = false;
1325
1326	switch (uMsg)
1327	{
1328	case GUEST_DND_CONNECT:
1329	/* Nothing to do here (yet). */
1330	break;
1331
1332	case GUEST_DND_DISCONNECT:
1333	rc = VERR_CANCELLED;
1334	break;
1335
1336	#ifdef VBOX_WITH_DRAG_AND_DROP_GH
1337	case GUEST_DND_GH_SND_DATA_HDR:
1338	{
1339	PVBOXDNDCBSNDDATAHDRDATA pCBData = reinterpret_cast<PVBOXDNDCBSNDDATAHDRDATA>(pvParms);
1340	AssertPtr(pCBData);
1341	AssertReturn(sizeof(VBOXDNDCBSNDDATAHDRDATA) == cbParms, VERR_INVALID_PARAMETER);
1342	AssertReturn(CB_MAGIC_DND_GH_SND_DATA_HDR == pCBData->hdr.uMagic, VERR_INVALID_PARAMETER);
1343
1344	rc = pThis->i_onReceiveDataHdr(pCtx, &pCBData->data);
1345	break;
1346	}
1347	case GUEST_DND_GH_SND_DATA:
1348	{
1349	PVBOXDNDCBSNDDATADATA pCBData = reinterpret_cast<PVBOXDNDCBSNDDATADATA>(pvParms);
1350	AssertPtr(pCBData);
1351	AssertReturn(sizeof(VBOXDNDCBSNDDATADATA) == cbParms, VERR_INVALID_PARAMETER);
1352	AssertReturn(CB_MAGIC_DND_GH_SND_DATA == pCBData->hdr.uMagic, VERR_INVALID_PARAMETER);
1353
1354	rc = pThis->i_onReceiveData(pCtx, &pCBData->data);
1355	break;
1356	}
1357	case GUEST_DND_GH_EVT_ERROR:
1358	{
1359	PVBOXDNDCBEVTERRORDATA pCBData = reinterpret_cast<PVBOXDNDCBEVTERRORDATA>(pvParms);
1360	AssertPtr(pCBData);
1361	AssertReturn(sizeof(VBOXDNDCBEVTERRORDATA) == cbParms, VERR_INVALID_PARAMETER);
1362	AssertReturn(CB_MAGIC_DND_GH_EVT_ERROR == pCBData->hdr.uMagic, VERR_INVALID_PARAMETER);
1363
1364	pCtx->mpResp->reset();
1365
1366	if (RT_SUCCESS(pCBData->rc))
1367	{
1368	AssertMsgFailed(("Received guest error with no error code set\n"));
1369	pCBData->rc = VERR_GENERAL_FAILURE; /* Make sure some error is set. */
1370	}
1371	else if (pCBData->rc == VERR_WRONG_ORDER)
1372	{
1373	rc = pCtx->mpResp->setProgress(100, DND_PROGRESS_CANCELLED);
1374	}
1375	else
1376	rc = pCtx->mpResp->setProgress(100, DND_PROGRESS_ERROR, pCBData->rc,
1377	GuestDnDSource::i_guestErrorToString(pCBData->rc));
1378
1379	LogRel3(("DnD: Guest reported data transfer error: %Rrc\n", pCBData->rc));
1380
1381	if (RT_SUCCESS(rc))
1382	rcCallback = VERR_GSTDND_GUEST_ERROR;
1383	break;
1384	}
1385	#endif /* VBOX_WITH_DRAG_AND_DROP_GH */
1386	default:
1387	rc = VERR_NOT_SUPPORTED;
1388	break;
1389	}
1390
1391	if ( RT_FAILURE(rc)
1392	\|\| RT_FAILURE(rcCallback))
1393	{
1394	fNotify = true;
1395	if (RT_SUCCESS(rcCallback))
1396	rcCallback = rc;
1397	}
1398
1399	if (RT_FAILURE(rc))
1400	{
1401	switch (rc)
1402	{
1403	case VERR_NO_DATA:
1404	LogRel2(("DnD: Data transfer to host complete\n"));
1405	break;
1406
1407	case VERR_CANCELLED:
1408	LogRel2(("DnD: Data transfer to host canceled\n"));
1409	break;
1410
1411	default:
1412	LogRel(("DnD: Error %Rrc occurred, aborting data transfer to host\n", rc));
1413	break;
1414	}
1415
1416	/* Unregister this callback. */
1417	AssertPtr(pCtx->mpResp);
1418	int rc2 = pCtx->mpResp->setCallback(uMsg, NULL /* PFNGUESTDNDCALLBACK */);
1419	AssertRC(rc2);
1420	}
1421
1422	/* All data processed? */
1423	if (pCtx->mData.isComplete())
1424	fNotify = true;
1425
1426	LogFlowFunc(("cbProcessed=%RU64, cbToProcess=%RU64, fNotify=%RTbool, rcCallback=%Rrc, rc=%Rrc\n",
1427	pCtx->mData.getProcessed(), pCtx->mData.getTotal(), fNotify, rcCallback, rc));
1428
1429	if (fNotify)
1430	{
1431	int rc2 = pCtx->mCBEvent.Notify(rcCallback);
1432	AssertRC(rc2);
1433	}
1434
1435	LogFlowFuncLeaveRC(rc);
1436	return rc; /* Tell the guest. */
1437	}
1438
1439	/* static */
1440	DECLCALLBACK(int) GuestDnDSource::i_receiveURIDataCallback(uint32_t uMsg, void pvParms, size_t cbParms, void pvUser)
1441	{
1442	PRECVDATACTX pCtx = (PRECVDATACTX)pvUser;
1443	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1444
1445	GuestDnDSource *pThis = pCtx->mpSource;
1446	AssertPtrReturn(pThis, VERR_INVALID_POINTER);
1447
1448	LogFlowFunc(("pThis=%p, uMsg=%RU32\n", pThis, uMsg));
1449
1450	int rc = VINF_SUCCESS;
1451
1452	int rcCallback = VINF_SUCCESS; /* rc for the callback. */
1453	bool fNotify = false;
1454
1455	switch (uMsg)
1456	{
1457	case GUEST_DND_CONNECT:
1458	/* Nothing to do here (yet). */
1459	break;
1460
1461	case GUEST_DND_DISCONNECT:
1462	rc = VERR_CANCELLED;
1463	break;
1464
1465	#ifdef VBOX_WITH_DRAG_AND_DROP_GH
1466	case GUEST_DND_GH_SND_DATA_HDR:
1467	{
1468	PVBOXDNDCBSNDDATAHDRDATA pCBData = reinterpret_cast<PVBOXDNDCBSNDDATAHDRDATA>(pvParms);
1469	AssertPtr(pCBData);
1470	AssertReturn(sizeof(VBOXDNDCBSNDDATAHDRDATA) == cbParms, VERR_INVALID_PARAMETER);
1471	AssertReturn(CB_MAGIC_DND_GH_SND_DATA_HDR == pCBData->hdr.uMagic, VERR_INVALID_PARAMETER);
1472
1473	rc = pThis->i_onReceiveDataHdr(pCtx, &pCBData->data);
1474	break;
1475	}
1476	case GUEST_DND_GH_SND_DATA:
1477	{
1478	PVBOXDNDCBSNDDATADATA pCBData = reinterpret_cast<PVBOXDNDCBSNDDATADATA>(pvParms);
1479	AssertPtr(pCBData);
1480	AssertReturn(sizeof(VBOXDNDCBSNDDATADATA) == cbParms, VERR_INVALID_PARAMETER);
1481	AssertReturn(CB_MAGIC_DND_GH_SND_DATA == pCBData->hdr.uMagic, VERR_INVALID_PARAMETER);
1482
1483	rc = pThis->i_onReceiveData(pCtx, &pCBData->data);
1484	break;
1485	}
1486	case GUEST_DND_GH_SND_DIR:
1487	{
1488	PVBOXDNDCBSNDDIRDATA pCBData = reinterpret_cast<PVBOXDNDCBSNDDIRDATA>(pvParms);
1489	AssertPtr(pCBData);
1490	AssertReturn(sizeof(VBOXDNDCBSNDDIRDATA) == cbParms, VERR_INVALID_PARAMETER);
1491	AssertReturn(CB_MAGIC_DND_GH_SND_DIR == pCBData->hdr.uMagic, VERR_INVALID_PARAMETER);
1492
1493	rc = pThis->i_onReceiveDir(pCtx, pCBData->pszPath, pCBData->cbPath, pCBData->fMode);
1494	break;
1495	}
1496	case GUEST_DND_GH_SND_FILE_HDR:
1497	{
1498	PVBOXDNDCBSNDFILEHDRDATA pCBData = reinterpret_cast<PVBOXDNDCBSNDFILEHDRDATA>(pvParms);
1499	AssertPtr(pCBData);
1500	AssertReturn(sizeof(VBOXDNDCBSNDFILEHDRDATA) == cbParms, VERR_INVALID_PARAMETER);
1501	AssertReturn(CB_MAGIC_DND_GH_SND_FILE_HDR == pCBData->hdr.uMagic, VERR_INVALID_PARAMETER);
1502
1503	rc = pThis->i_onReceiveFileHdr(pCtx, pCBData->pszFilePath, pCBData->cbFilePath,
1504	pCBData->cbSize, pCBData->fMode, pCBData->fFlags);
1505	break;
1506	}
1507	case GUEST_DND_GH_SND_FILE_DATA:
1508	{
1509	PVBOXDNDCBSNDFILEDATADATA pCBData = reinterpret_cast<PVBOXDNDCBSNDFILEDATADATA>(pvParms);
1510	AssertPtr(pCBData);
1511	AssertReturn(sizeof(VBOXDNDCBSNDFILEDATADATA) == cbParms, VERR_INVALID_PARAMETER);
1512	AssertReturn(CB_MAGIC_DND_GH_SND_FILE_DATA == pCBData->hdr.uMagic, VERR_INVALID_PARAMETER);
1513
1514	if (pThis->mDataBase.m_uProtocolVersion <= 1)
1515	{
1516	/**
1517	* Notes for protocol v1 (< VBox 5.0):
1518	* - Every time this command is being sent it includes the file header,
1519	* so just process both calls here.
1520	* - There was no information whatsoever about the total file size; the old code only
1521	* appended data to the desired file. So just pass 0 as cbSize.
1522	*/
1523	rc = pThis->i_onReceiveFileHdr(pCtx, pCBData->u.v1.pszFilePath, pCBData->u.v1.cbFilePath,
1524	0 /* cbSize /, pCBData->u.v1.fMode, 0 / fFlags */);
1525	if (RT_SUCCESS(rc))
1526	rc = pThis->i_onReceiveFileData(pCtx, pCBData->pvData, pCBData->cbData);
1527	}
1528	else /* Protocol v2 and up. */
1529	rc = pThis->i_onReceiveFileData(pCtx, pCBData->pvData, pCBData->cbData);
1530	break;
1531	}
1532	case GUEST_DND_GH_EVT_ERROR:
1533	{
1534	PVBOXDNDCBEVTERRORDATA pCBData = reinterpret_cast<PVBOXDNDCBEVTERRORDATA>(pvParms);
1535	AssertPtr(pCBData);
1536	AssertReturn(sizeof(VBOXDNDCBEVTERRORDATA) == cbParms, VERR_INVALID_PARAMETER);
1537	AssertReturn(CB_MAGIC_DND_GH_EVT_ERROR == pCBData->hdr.uMagic, VERR_INVALID_PARAMETER);
1538
1539	pCtx->mpResp->reset();
1540
1541	if (RT_SUCCESS(pCBData->rc))
1542	{
1543	AssertMsgFailed(("Received guest error with no error code set\n"));
1544	pCBData->rc = VERR_GENERAL_FAILURE; /* Make sure some error is set. */
1545	}
1546	else if (pCBData->rc == VERR_WRONG_ORDER)
1547	{
1548	rc = pCtx->mpResp->setProgress(100, DND_PROGRESS_CANCELLED);
1549	}
1550	else
1551	rc = pCtx->mpResp->setProgress(100, DND_PROGRESS_ERROR, pCBData->rc,
1552	GuestDnDSource::i_guestErrorToString(pCBData->rc));
1553
1554	LogRel3(("DnD: Guest reported file transfer error: %Rrc\n", pCBData->rc));
1555
1556	if (RT_SUCCESS(rc))
1557	rcCallback = VERR_GSTDND_GUEST_ERROR;
1558	break;
1559	}
1560	#endif /* VBOX_WITH_DRAG_AND_DROP_GH */
1561	default:
1562	rc = VERR_NOT_SUPPORTED;
1563	break;
1564	}
1565
1566	if ( RT_FAILURE(rc)
1567	\|\| RT_FAILURE(rcCallback))
1568	{
1569	fNotify = true;
1570	if (RT_SUCCESS(rcCallback))
1571	rcCallback = rc;
1572	}
1573
1574	if (RT_FAILURE(rc))
1575	{
1576	switch (rc)
1577	{
1578	case VERR_NO_DATA:
1579	LogRel2(("DnD: File transfer to host complete\n"));
1580	break;
1581
1582	case VERR_CANCELLED:
1583	LogRel2(("DnD: File transfer to host canceled\n"));
1584	break;
1585
1586	default:
1587	LogRel(("DnD: Error %Rrc occurred, aborting file transfer to host\n", rc));
1588	break;
1589	}
1590
1591	/* Unregister this callback. */
1592	AssertPtr(pCtx->mpResp);
1593	int rc2 = pCtx->mpResp->setCallback(uMsg, NULL /* PFNGUESTDNDCALLBACK */);
1594	AssertRC(rc2);
1595	}
1596
1597	/* All data processed? */
1598	if ( pCtx->mURI.isComplete()
1599	&& pCtx->mData.isComplete())
1600	{
1601	fNotify = true;
1602	}
1603
1604	LogFlowFunc(("cbProcessed=%RU64, cbToProcess=%RU64, fNotify=%RTbool, rcCallback=%Rrc, rc=%Rrc\n",
1605	pCtx->mData.getProcessed(), pCtx->mData.getTotal(), fNotify, rcCallback, rc));
1606
1607	if (fNotify)
1608	{
1609	int rc2 = pCtx->mCBEvent.Notify(rcCallback);
1610	AssertRC(rc2);
1611	}
1612
1613	LogFlowFuncLeaveRC(rc);
1614	return rc; /* Tell the guest. */
1615	}
1616

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source: vbox/trunk/src/VBox/Main/src-client/GuestDnDSourceImpl.cpp@ 72088

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