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platform_util_win.cc
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/
platform_util_win.cc
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// Copyright (c) 2013 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/common/platform_util.h"
#include <windows.h> // windows.h must be included first
#include <atlbase.h>
#include <comdef.h>
#include <commdlg.h>
#include <dwmapi.h>
#include <objbase.h>
#include <shellapi.h>
#include <shlobj.h>
#include <wrl/client.h>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/logging.h"
#include "base/stl_util.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "base/task/post_task.h"
#include "base/threading/scoped_blocking_call.h"
#include "base/win/registry.h"
#include "base/win/scoped_co_mem.h"
#include "base/win/scoped_com_initializer.h"
#include "base/win/windows_version.h"
#include "content/public/browser/browser_task_traits.h"
#include "ui/base/win/shell.h"
#include "url/gurl.h"
namespace {
// Required COM implementation of IFileOperationProgressSink so we can
// precheck files before deletion to make sure they can be move to the
// Recycle Bin.
class DeleteFileProgressSink : public IFileOperationProgressSink {
public:
DeleteFileProgressSink();
virtual ~DeleteFileProgressSink() = default;
private:
ULONG STDMETHODCALLTYPE AddRef(void) override;
ULONG STDMETHODCALLTYPE Release(void) override;
HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid,
LPVOID* ppvObj) override;
HRESULT STDMETHODCALLTYPE StartOperations(void) override;
HRESULT STDMETHODCALLTYPE FinishOperations(HRESULT) override;
HRESULT STDMETHODCALLTYPE PreRenameItem(DWORD, IShellItem*, LPCWSTR) override;
HRESULT STDMETHODCALLTYPE
PostRenameItem(DWORD, IShellItem*, LPCWSTR, HRESULT, IShellItem*) override;
HRESULT STDMETHODCALLTYPE PreMoveItem(DWORD,
IShellItem*,
IShellItem*,
LPCWSTR) override;
HRESULT STDMETHODCALLTYPE PostMoveItem(DWORD,
IShellItem*,
IShellItem*,
LPCWSTR,
HRESULT,
IShellItem*) override;
HRESULT STDMETHODCALLTYPE PreCopyItem(DWORD,
IShellItem*,
IShellItem*,
LPCWSTR) override;
HRESULT STDMETHODCALLTYPE PostCopyItem(DWORD,
IShellItem*,
IShellItem*,
LPCWSTR,
HRESULT,
IShellItem*) override;
HRESULT STDMETHODCALLTYPE PreDeleteItem(DWORD, IShellItem*) override;
HRESULT STDMETHODCALLTYPE PostDeleteItem(DWORD,
IShellItem*,
HRESULT,
IShellItem*) override;
HRESULT STDMETHODCALLTYPE PreNewItem(DWORD, IShellItem*, LPCWSTR) override;
HRESULT STDMETHODCALLTYPE PostNewItem(DWORD,
IShellItem*,
LPCWSTR,
LPCWSTR,
DWORD,
HRESULT,
IShellItem*) override;
HRESULT STDMETHODCALLTYPE UpdateProgress(UINT, UINT) override;
HRESULT STDMETHODCALLTYPE ResetTimer(void) override;
HRESULT STDMETHODCALLTYPE PauseTimer(void) override;
HRESULT STDMETHODCALLTYPE ResumeTimer(void) override;
ULONG m_cRef;
};
DeleteFileProgressSink::DeleteFileProgressSink() {
m_cRef = 0;
}
HRESULT DeleteFileProgressSink::PreDeleteItem(DWORD dwFlags, IShellItem*) {
if (!(dwFlags & TSF_DELETE_RECYCLE_IF_POSSIBLE)) {
// TSF_DELETE_RECYCLE_IF_POSSIBLE will not be set for items that cannot be
// recycled. In this case, we abort the delete operation. This bubbles
// up and stops the Delete in IFileOperation.
return E_ABORT;
}
// Returns S_OK if successful, or an error value otherwise. In the case of an
// error value, the delete operation and all subsequent operations pending
// from the call to IFileOperation are canceled.
return S_OK;
}
HRESULT DeleteFileProgressSink::QueryInterface(REFIID riid, LPVOID* ppvObj) {
// Always set out parameter to NULL, validating it first.
if (!ppvObj)
return E_INVALIDARG;
*ppvObj = nullptr;
if (riid == IID_IUnknown || riid == IID_IFileOperationProgressSink) {
// Increment the reference count and return the pointer.
*ppvObj = reinterpret_cast<IUnknown*>(this);
AddRef();
return NOERROR;
}
return E_NOINTERFACE;
}
ULONG DeleteFileProgressSink::AddRef() {
InterlockedIncrement(&m_cRef);
return m_cRef;
}
ULONG DeleteFileProgressSink::Release() {
// Decrement the object's internal counter.
ULONG ulRefCount = InterlockedDecrement(&m_cRef);
if (0 == m_cRef) {
delete this;
}
return ulRefCount;
}
HRESULT DeleteFileProgressSink::StartOperations() {
return S_OK;
}
HRESULT DeleteFileProgressSink::FinishOperations(HRESULT) {
return S_OK;
}
HRESULT DeleteFileProgressSink::PreRenameItem(DWORD, IShellItem*, LPCWSTR) {
return S_OK;
}
HRESULT DeleteFileProgressSink::PostRenameItem(DWORD,
IShellItem*,
__RPC__in_string LPCWSTR,
HRESULT,
IShellItem*) {
return E_NOTIMPL;
}
HRESULT DeleteFileProgressSink::PreMoveItem(DWORD,
IShellItem*,
IShellItem*,
LPCWSTR) {
return E_NOTIMPL;
}
HRESULT DeleteFileProgressSink::PostMoveItem(DWORD,
IShellItem*,
IShellItem*,
LPCWSTR,
HRESULT,
IShellItem*) {
return E_NOTIMPL;
}
HRESULT DeleteFileProgressSink::PreCopyItem(DWORD,
IShellItem*,
IShellItem*,
LPCWSTR) {
return E_NOTIMPL;
}
HRESULT DeleteFileProgressSink::PostCopyItem(DWORD,
IShellItem*,
IShellItem*,
LPCWSTR,
HRESULT,
IShellItem*) {
return E_NOTIMPL;
}
HRESULT DeleteFileProgressSink::PostDeleteItem(DWORD,
IShellItem*,
HRESULT,
IShellItem*) {
return S_OK;
}
HRESULT DeleteFileProgressSink::PreNewItem(DWORD dwFlags,
IShellItem*,
LPCWSTR) {
return E_NOTIMPL;
}
HRESULT DeleteFileProgressSink::PostNewItem(DWORD,
IShellItem*,
LPCWSTR,
LPCWSTR,
DWORD,
HRESULT,
IShellItem*) {
return E_NOTIMPL;
}
HRESULT DeleteFileProgressSink::UpdateProgress(UINT, UINT) {
return S_OK;
}
HRESULT DeleteFileProgressSink::ResetTimer() {
return S_OK;
}
HRESULT DeleteFileProgressSink::PauseTimer() {
return S_OK;
}
HRESULT DeleteFileProgressSink::ResumeTimer() {
return S_OK;
}
std::string OpenExternalOnWorkerThread(
const GURL& url,
const platform_util::OpenExternalOptions& options) {
base::ScopedBlockingCall scoped_blocking_call(FROM_HERE,
base::BlockingType::MAY_BLOCK);
// Quote the input scheme to be sure that the command does not have
// parameters unexpected by the external program. This url should already
// have been escaped.
base::string16 escaped_url = L"\"" + base::UTF8ToUTF16(url.spec()) + L"\"";
base::string16 working_dir = options.working_dir.value();
if (reinterpret_cast<ULONG_PTR>(
ShellExecuteW(nullptr, L"open", escaped_url.c_str(), nullptr,
working_dir.empty() ? nullptr : working_dir.c_str(),
SW_SHOWNORMAL)) <= 32) {
return "Failed to open";
}
return "";
}
void ShowItemInFolderOnWorkerThread(const base::FilePath& full_path) {
base::ScopedBlockingCall scoped_blocking_call(FROM_HERE,
base::BlockingType::MAY_BLOCK);
base::win::ScopedCOMInitializer com_initializer;
if (!com_initializer.Succeeded())
return;
base::FilePath dir = full_path.DirName().AsEndingWithSeparator();
// ParseDisplayName will fail if the directory is "C:", it must be "C:\\".
if (dir.empty())
return;
Microsoft::WRL::ComPtr<IShellFolder> desktop;
HRESULT hr = SHGetDesktopFolder(desktop.GetAddressOf());
if (FAILED(hr))
return;
base::win::ScopedCoMem<ITEMIDLIST> dir_item;
hr = desktop->ParseDisplayName(NULL, NULL,
const_cast<wchar_t*>(dir.value().c_str()),
NULL, &dir_item, NULL);
if (FAILED(hr))
return;
base::win::ScopedCoMem<ITEMIDLIST> file_item;
hr = desktop->ParseDisplayName(
NULL, NULL, const_cast<wchar_t*>(full_path.value().c_str()), NULL,
&file_item, NULL);
if (FAILED(hr))
return;
const ITEMIDLIST* highlight[] = {file_item};
hr = SHOpenFolderAndSelectItems(dir_item, base::size(highlight), highlight,
NULL);
if (FAILED(hr)) {
// On some systems, the above call mysteriously fails with "file not
// found" even though the file is there. In these cases, ShellExecute()
// seems to work as a fallback (although it won't select the file).
if (hr == ERROR_FILE_NOT_FOUND) {
ShellExecute(NULL, L"open", dir.value().c_str(), NULL, NULL, SW_SHOW);
} else {
LOG(WARNING) << " " << __func__ << "(): Can't open full_path = \""
<< full_path.value() << "\""
<< " hr = " << logging::SystemErrorCodeToString(hr);
}
}
}
} // namespace
namespace platform_util {
void ShowItemInFolder(const base::FilePath& full_path) {
base::CreateCOMSTATaskRunner(
{base::ThreadPool(), base::MayBlock(), base::TaskPriority::USER_BLOCKING})
->PostTask(FROM_HERE,
base::BindOnce(&ShowItemInFolderOnWorkerThread, full_path));
}
bool OpenItem(const base::FilePath& full_path) {
if (base::DirectoryExists(full_path))
return ui::win::OpenFolderViaShell(full_path);
else
return ui::win::OpenFileViaShell(full_path);
}
void OpenExternal(const GURL& url,
const OpenExternalOptions& options,
OpenExternalCallback callback) {
base::PostTaskAndReplyWithResult(
base::CreateCOMSTATaskRunner({base::ThreadPool(), base::MayBlock(),
base::TaskPriority::USER_BLOCKING})
.get(),
FROM_HERE, base::BindOnce(&OpenExternalOnWorkerThread, url, options),
std::move(callback));
}
bool MoveItemToTrash(const base::FilePath& path) {
base::win::ScopedCOMInitializer com_initializer;
if (!com_initializer.Succeeded())
return false;
Microsoft::WRL::ComPtr<IFileOperation> pfo;
if (FAILED(::CoCreateInstance(CLSID_FileOperation, nullptr, CLSCTX_ALL,
IID_PPV_ARGS(&pfo))))
return false;
// Elevation prompt enabled for UAC protected files. This overrides the
// SILENT, NO_UI and NOERRORUI flags.
if (base::win::GetVersion() >= base::win::Version::WIN8) {
// Windows 8 introduces the flag RECYCLEONDELETE and deprecates the
// ALLOWUNDO in favor of ADDUNDORECORD.
if (FAILED(pfo->SetOperationFlags(
FOF_NO_UI | FOFX_ADDUNDORECORD | FOF_NOERRORUI | FOF_SILENT |
FOFX_SHOWELEVATIONPROMPT | FOFX_RECYCLEONDELETE)))
return false;
} else {
// For Windows 7 and Vista, RecycleOnDelete is the default behavior.
if (FAILED(pfo->SetOperationFlags(FOF_NO_UI | FOF_ALLOWUNDO |
FOF_NOERRORUI | FOF_SILENT |
FOFX_SHOWELEVATIONPROMPT)))
return false;
}
// Create an IShellItem from the supplied source path.
Microsoft::WRL::ComPtr<IShellItem> delete_item;
if (FAILED(SHCreateItemFromParsingName(
path.value().c_str(), NULL,
IID_PPV_ARGS(delete_item.GetAddressOf()))))
return false;
Microsoft::WRL::ComPtr<IFileOperationProgressSink> delete_sink(
new DeleteFileProgressSink);
if (!delete_sink)
return false;
// Processes the queued command DeleteItem. This will trigger
// the DeleteFileProgressSink to check for Recycle Bin.
return SUCCEEDED(pfo->DeleteItem(delete_item.Get(), delete_sink.Get())) &&
SUCCEEDED(pfo->PerformOperations());
}
void Beep() {
MessageBeep(MB_OK);
}
} // namespace platform_util