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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "WindowsTestDebug.h"
#include "nsCOMPtr.h"
#include "nsIFile.h"
#include "nsTArray.h"
#include "nsXPCOM.h"
namespace {
typedef DWORD(WINAPI* RMSTARTSESSION)(DWORD*, DWORD, WCHAR[]);
typedef DWORD(WINAPI* RMREGISTERRESOURCES)(DWORD, UINT, LPCWSTR[], UINT,
RM_UNIQUE_PROCESS[], UINT,
LPCWSTR[]);
typedef DWORD(WINAPI* RMGETLIST)(DWORD, UINT*, UINT*, RM_PROCESS_INFO[],
LPDWORD);
typedef DWORD(WINAPI* RMENDSESSION)(DWORD);
} // namespace
namespace mozilla::widget {
class WindowsDebugProcessData : public nsIWindowsDebugProcessData {
public:
NS_DECL_ISUPPORTS
WindowsDebugProcessData(const wchar_t* aName, const wchar_t* aFilePath,
unsigned long aPid)
: mName(aName), mFilePath(aFilePath), mPid(aPid) {}
NS_IMETHODIMP GetName(nsAString& aOut) {
aOut = mName;
return NS_OK;
}
NS_IMETHODIMP GetExecutablePath(nsAString& aOut) {
aOut = mFilePath;
return NS_OK;
}
NS_IMETHODIMP GetPid(uint32_t* aOut) {
*aOut = mPid;
return NS_OK;
}
private:
virtual ~WindowsDebugProcessData() = default;
nsString mName;
nsString mFilePath;
unsigned long mPid;
};
NS_IMPL_ISUPPORTS(WindowsDebugProcessData, nsIWindowsDebugProcessData)
NS_IMPL_ISUPPORTS(WindowsTestDebug, nsIWindowsTestDebug)
WindowsTestDebug::WindowsTestDebug() {}
WindowsTestDebug::~WindowsTestDebug() {}
static nsReturnRef<HMODULE> MakeRestartManager() {
nsModuleHandle module(::LoadLibraryW(L"Rstrtmgr.dll"));
(void)NS_WARN_IF(!module);
return module.out();
}
NS_IMETHODIMP
WindowsTestDebug::ProcessesThatOpenedFile(
const nsAString& aFilename,
nsTArray<RefPtr<nsIWindowsDebugProcessData>>& aResult) {
nsModuleHandle module(MakeRestartManager());
if (!module) {
return NS_ERROR_NOT_AVAILABLE;
}
auto RmStartSession = reinterpret_cast<RMSTARTSESSION>(
::GetProcAddress(module, "RmStartSession"));
if (NS_WARN_IF(!RmStartSession)) {
return NS_ERROR_NOT_INITIALIZED;
}
auto RmRegisterResources = reinterpret_cast<RMREGISTERRESOURCES>(
::GetProcAddress(module, "RmRegisterResources"));
if (NS_WARN_IF(!RmRegisterResources)) {
return NS_ERROR_NOT_INITIALIZED;
}
auto RmGetList =
reinterpret_cast<RMGETLIST>(::GetProcAddress(module, "RmGetList"));
if (NS_WARN_IF(!RmGetList)) {
return NS_ERROR_NOT_INITIALIZED;
}
auto RmEndSession =
reinterpret_cast<RMENDSESSION>(::GetProcAddress(module, "RmEndSession"));
if (NS_WARN_IF(!RmEndSession)) {
return NS_ERROR_NOT_INITIALIZED;
}
WCHAR sessionKey[CCH_RM_SESSION_KEY + 1] = {0};
DWORD handle;
if (NS_WARN_IF(FAILED(RmStartSession(&handle, 0, sessionKey)))) {
return NS_ERROR_FAILURE;
}
auto endSession = MakeScopeExit(
[&, handle]() { (void)NS_WARN_IF(FAILED(RmEndSession(handle))); });
LPCWSTR resources[] = {PromiseFlatString(aFilename).get()};
if (NS_WARN_IF(FAILED(
RmRegisterResources(handle, 1, resources, 0, nullptr, 0, nullptr)))) {
return NS_ERROR_FAILURE;
}
AutoTArray<RM_PROCESS_INFO, 1> info;
UINT numEntries;
UINT numEntriesNeeded = 1;
DWORD error = ERROR_MORE_DATA;
DWORD reason = RmRebootReasonNone;
while (error == ERROR_MORE_DATA) {
info.SetLength(numEntriesNeeded);
numEntries = numEntriesNeeded;
error =
RmGetList(handle, &numEntriesNeeded, &numEntries, &info[0], &reason);
}
if (NS_WARN_IF(error != ERROR_SUCCESS)) {
return NS_ERROR_FAILURE;
}
for (UINT i = 0; i < numEntries; ++i) {
nsAutoHandle otherProcess(::OpenProcess(
PROCESS_QUERY_LIMITED_INFORMATION, FALSE, info[i].Process.dwProcessId));
if (NS_WARN_IF(!otherProcess)) {
continue;
}
WCHAR imageName[MAX_PATH];
DWORD imageNameLen = MAX_PATH;
if (NS_WARN_IF(FAILED(::QueryFullProcessImageNameW(
otherProcess, 0, imageName, &imageNameLen)))) {
continue;
}
aResult.AppendElement(new WindowsDebugProcessData(
info[i].strAppName, imageName, info[i].Process.dwProcessId));
}
return NS_OK;
}
} // namespace mozilla::widget
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