Bug 1596812 Part 2 - NSIS WebBrowser plugin. r=agashlin,nalexander

This is all the code and build files for an NSIS plugin that enables
rendering a web page as the content of an NSIS dialog.

Documentation and the compiled binary are in later commits in this series.

Depends on D56576

Differential Revision: https://phabricator.services.mozilla.com/D56577

other-licenses/nsis/Contrib/WebBrowser/CustomFunctions.cpp

@@ -0,0 +1,75 @@
+// 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 "WebBrowser.h"
+#include "exdll.h"
+
+extern WebBrowser* gBrowser;
+void Init(HWND hWndParent, int string_size, TCHAR* variables,
+          stack_t** stacktop, extra_parameters* extra);
+
+static void CustomFunctionWrapper(void* NSISFunctionAddr, VARIANT jsArg,
+                                  VARIANT* retVal) {
+  // Marshal the argument passed to the JavaScript function onto the NSIS stack.
+  switch (jsArg.vt) {
+    case VT_BSTR:
+      pushstring(jsArg.bstrVal);
+      break;
+    case VT_I4: {
+      TCHAR intArgStr[32] = _T("");
+      _itot_s(jsArg.intVal, intArgStr, 10);
+      pushstring(intArgStr);
+      break;
+    }
+    case VT_BOOL:
+      pushstring(jsArg.boolVal == VARIANT_TRUE ? _T("1") : _T("0"));
+      break;
+    default:
+      // No other argument types supported.
+      pushstring(_T(""));
+      break;
+  }
+
+  // Call the NSIS function.
+  int rv = g_executeCodeSegment((int)NSISFunctionAddr, g_hwndParent);
+
+  // Retrieve the return value from the NSIS stack.
+  TCHAR* nsisRetval =
+      (TCHAR*)HeapAlloc(GetProcessHeap(), 0, g_stringsize * sizeof(TCHAR));
+  popstring(nsisRetval);
+
+  // Pass the return value back to JavaScript, if it asked for one.
+  if (retVal) {
+    VariantInit(retVal);
+    retVal->vt = VT_BSTR;
+    retVal->bstrVal = SysAllocString(nsisRetval);
+  }
+
+  HeapFree(GetProcessHeap(), 0, nsisRetval);
+}
+
+PLUGINFUNCTION(RegisterCustomFunction) {
+  if (!gBrowser) {
+    Init(hWndParent, string_size, variables, stacktop, extra);
+  }
+
+  TCHAR* funcAddrStr =
+      (TCHAR*)HeapAlloc(GetProcessHeap(), 0, g_stringsize * sizeof(TCHAR));
+  popstring(funcAddrStr);
+
+  TCHAR* funcName =
+      (TCHAR*)HeapAlloc(GetProcessHeap(), 0, g_stringsize * sizeof(TCHAR));
+  popstring(funcName);
+
+  if (gBrowser && funcAddrStr && funcName) {
+    // Apparently GetFunctionAddress returnes a 1-indexed offset, but
+    // ExecuteCodeSegment expects a 0-indexed one. Or something.
+    uintptr_t funcAddr = static_cast<uintptr_t>(_ttoi64(funcAddrStr)) - 1;
+    gBrowser->AddCustomFunction(funcName, CustomFunctionWrapper,
+                                (void*)funcAddr);
+  }
+
+  HeapFree(GetProcessHeap(), 0, funcName);
+  HeapFree(GetProcessHeap(), 0, funcAddrStr);
+}

other-licenses/nsis/Contrib/WebBrowser/Timers.cpp

@@ -0,0 +1,58 @@
+// 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 <windows.h>
+#include "exdll.h"
+
+static void APIENTRY TimerCallback(LPVOID NSISFunctionAddr, DWORD, DWORD) {
+  g_executeCodeSegment((int)NSISFunctionAddr, g_hwndParent);
+}
+
+PLUGINFUNCTION(CreateTimer) {
+  EXDLL_INIT();
+
+  TCHAR* funcAddrStr =
+      (TCHAR*)HeapAlloc(GetProcessHeap(), 0, g_stringsize * sizeof(TCHAR));
+  popstring(funcAddrStr);
+  // Apparently GetFunctionAddress returnes a 1-indexed offset, but
+  // ExecuteCodeSegment expects a 0-indexed one. Or something.
+  uintptr_t funcAddr = static_cast<uintptr_t>(_ttoi64(funcAddrStr)) - 1;
+  HeapFree(GetProcessHeap(), 0, funcAddrStr);
+
+  TCHAR* intervalStr =
+      (TCHAR*)HeapAlloc(GetProcessHeap(), 0, g_stringsize * sizeof(TCHAR));
+  popstring(intervalStr);
+  long interval = _ttol(intervalStr);
+  HeapFree(GetProcessHeap(), 0, intervalStr);
+
+  HANDLE timer = CreateWaitableTimer(nullptr, FALSE, nullptr);
+  if (!timer) {
+    return;
+  }
+
+  // The interval we were passed is in milliseconds, so we need to convert it
+  // to the 100-nanosecond units that SetWaitableTimer expects. We also need to
+  // make it negative, because that's what signifies a relative offset from now
+  // instead of an epoch-based time stamp.
+  LARGE_INTEGER dueTime;
+  dueTime.QuadPart = -(interval * 10000);
+
+  SetWaitableTimer(timer, &dueTime, interval, TimerCallback, (void*)funcAddr,
+                   FALSE);
+
+  TCHAR timerStr[32] = _T("");
+  _ltot_s((long)timer, timerStr, 10);
+  pushstring(timerStr);
+}
+
+PLUGINFUNCTION(CancelTimer) {
+  TCHAR* timerStr =
+      (TCHAR*)HeapAlloc(GetProcessHeap(), 0, g_stringsize * sizeof(TCHAR));
+  popstring(timerStr);
+  HANDLE timer = reinterpret_cast<HANDLE>(_ttoi(timerStr));
+  HeapFree(GetProcessHeap(), 0, timerStr);
+
+  CancelWaitableTimer(timer);
+  CloseHandle(timer);
+}

other-licenses/nsis/Contrib/WebBrowser/WebBrowser.cpp

@@ -0,0 +1,604 @@
+// 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 "WebBrowser.h"
+#include <mshtmdid.h>
+
+WebBrowser::WebBrowser(HWND _hWndParent) : mHwndParent(_hWndParent) {
+  // Whatever executed this constructor owns our first reference.
+  AddRef();
+
+  HRESULT hr = ::OleCreate(CLSID_WebBrowser, IID_IOleObject, OLERENDER_DRAW, 0,
+                           this, this, (void**)&mOleObject);
+  if (FAILED(hr)) {
+    return;
+  }
+
+  RECT posRect;
+  ::GetClientRect(mHwndParent, &posRect);
+
+  hr = mOleObject->DoVerb(OLEIVERB_INPLACEACTIVATE, nullptr, this, 0,
+                          mHwndParent, &posRect);
+  if (FAILED(hr)) {
+    mOleObject->Release();
+    mOleObject = nullptr;
+    return;
+  }
+
+  SetRect(posRect);
+
+  hr = mOleObject->QueryInterface(&mWebBrowser2);
+  if (FAILED(hr)) {
+    mOleObject->Release();
+    mOleObject = nullptr;
+    return;
+  }
+
+  mWebBrowser2->put_Silent(VARIANT_TRUE);
+}
+
+WebBrowser::~WebBrowser() {
+  if (mWebBrowser2) {
+    mWebBrowser2->Release();
+    mWebBrowser2 = nullptr;
+  }
+  if (mOleInPlaceActiveObject) {
+    mOleInPlaceActiveObject->Release();
+    mOleInPlaceActiveObject = nullptr;
+  }
+  if (mOleInPlaceObject) {
+    mOleInPlaceObject->Release();
+    mOleInPlaceObject = nullptr;
+  }
+  if (mOleObject) {
+    mOleObject->Release();
+    mOleObject = nullptr;
+  }
+}
+
+void WebBrowser::Shutdown() {
+  if (mOleObject) {
+    mOleObject->Close(OLECLOSE_NOSAVE);
+    mOleObject->SetClientSite(nullptr);
+  }
+}
+
+bool WebBrowser::IsInitialized() { return mOleObject != nullptr; }
+
+HRESULT WebBrowser::ActiveObjectTranslateAccelerator(bool tab, LPMSG lpmsg) {
+  if (IsInitialized() && mOleInPlaceActiveObject) {
+    HRESULT hr = mOleInPlaceActiveObject->TranslateAcceleratorW(lpmsg);
+    if (hr == S_FALSE && tab) {
+      // The browser control will give up focus, but it is the only control so
+      // it would get focus again via IsDialogMessage. This does not result in
+      // the focus returning to the web page, though, so instead let the
+      // control process the tab again.
+      hr = mOleInPlaceActiveObject->TranslateAcceleratorW(lpmsg);
+    }
+    return hr;
+  } else {
+    return S_FALSE;
+  }
+}
+
+void WebBrowser::SetRect(const RECT& _rc) {
+  mRect = _rc;
+
+  if (mOleInPlaceObject) {
+    mOleInPlaceObject->SetObjectRects(&mRect, &mRect);
+  }
+}
+
+void WebBrowser::Resize(DWORD width, DWORD height) {
+  RECT r = mRect;
+  r.bottom = r.top + height;
+  r.right = r.left + width;
+  SetRect(r);
+}
+
+void WebBrowser::Navigate(wchar_t* url) {
+  if (!IsInitialized()) {
+    return;
+  }
+
+  VARIANT flags;
+  VariantInit(&flags);
+  flags.vt = VT_I4;
+  flags.intVal = navNoHistory | navEnforceRestricted | navUntrustedForDownload |
+                 navBlockRedirectsXDomain;
+
+  mWebBrowser2->Navigate(url, &flags, nullptr, nullptr, nullptr);
+}
+
+void WebBrowser::AddCustomFunction(wchar_t* name, CustomFunction function,
+                                   void* arg) {
+  CustomFunctionRecord record = {name, function, arg};
+
+// We've disabled exceptions but push_back can throw on an allocation
+// failure, so we need to suppress a warning trying to tell us that
+// that combination doesn't make any sense.
+#pragma warning(suppress : 4530)
+  mCustomFunctions.push_back(record);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// IUnknown
+//////////////////////////////////////////////////////////////////////////////
+// This is a standard IUnknown implementation, we don't need anything special.
+
+HRESULT STDMETHODCALLTYPE WebBrowser::QueryInterface(REFIID riid,
+                                                     void** ppvObject) {
+  if (riid == __uuidof(IUnknown)) {
+    *ppvObject = static_cast<IOleClientSite*>(this);
+  } else if (riid == __uuidof(IOleClientSite)) {
+    *ppvObject = static_cast<IOleClientSite*>(this);
+  } else if (riid == __uuidof(IOleInPlaceSite)) {
+    *ppvObject = static_cast<IOleInPlaceSite*>(this);
+  } else if (riid == __uuidof(IDropTarget)) {
+    *ppvObject = static_cast<IDropTarget*>(this);
+  } else if (riid == __uuidof(IStorage)) {
+    *ppvObject = static_cast<IStorage*>(this);
+  } else if (riid == __uuidof(IDocHostUIHandler)) {
+    *ppvObject = static_cast<IDocHostUIHandler*>(this);
+  } else if (riid == __uuidof(IDocHostShowUI)) {
+    *ppvObject = static_cast<IDocHostShowUI*>(this);
+  } else if (riid == __uuidof(IDispatch)) {
+    *ppvObject = static_cast<IDispatch*>(this);
+  } else {
+    *ppvObject = nullptr;
+    return E_NOINTERFACE;
+  }
+
+  AddRef();
+  return S_OK;
+}
+
+ULONG STDMETHODCALLTYPE WebBrowser::AddRef() {
+  return InterlockedIncrement(&mComRefCount);
+}
+
+ULONG STDMETHODCALLTYPE WebBrowser::Release() {
+  ULONG refCount = InterlockedDecrement(&mComRefCount);
+  if (refCount == 0) {
+    delete this;
+  }
+  return refCount;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// IOleWindow
+//////////////////////////////////////////////////////////////////////////////
+
+HRESULT STDMETHODCALLTYPE
+WebBrowser::GetWindow(__RPC__deref_out_opt HWND* phwnd) {
+  *phwnd = mHwndParent;
+  return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::ContextSensitiveHelp(BOOL fEnterMode) {
+  // We don't provide context-sensitive help.
+  return E_NOTIMPL;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// IOleInPlaceSite
+//////////////////////////////////////////////////////////////////////////////
+
+HRESULT STDMETHODCALLTYPE WebBrowser::CanInPlaceActivate() {
+  // We always support in-place activation.
+  return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::OnInPlaceActivate() {
+  OleLockRunning(mOleObject, TRUE, FALSE);
+  mOleObject->QueryInterface(&mOleInPlaceObject);
+  mOleInPlaceObject->QueryInterface(&mOleInPlaceActiveObject);
+  mOleInPlaceObject->SetObjectRects(&mRect, &mRect);
+
+  return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::OnUIActivate() {
+  // Nothing to do before activating the control's UI.
+  return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::GetWindowContext(
+    __RPC__deref_out_opt IOleInPlaceFrame** ppFrame,
+    __RPC__deref_out_opt IOleInPlaceUIWindow** ppDoc,
+    __RPC__out LPRECT lprcPosRect, __RPC__out LPRECT lprcClipRect,
+    __RPC__inout LPOLEINPLACEFRAMEINFO lpFrameInfo) {
+  *ppFrame = nullptr;
+  *ppDoc = nullptr;
+  *lprcPosRect = mRect;
+  *lprcClipRect = mRect;
+
+  lpFrameInfo->fMDIApp = false;
+  lpFrameInfo->hwndFrame = mHwndParent;
+  lpFrameInfo->haccel = nullptr;
+  lpFrameInfo->cAccelEntries = 0;
+
+  return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::Scroll(SIZE scrollExtant) {
+  // We should have disabled all scrollbars.
+  return E_NOTIMPL;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::OnUIDeactivate(BOOL fUndoable) {
+  // Nothing to do after deactivating the control's UI.
+  return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::OnInPlaceDeactivate() {
+  if (mOleInPlaceObject) {
+    mOleInPlaceObject->Release();
+    mOleInPlaceObject = nullptr;
+  }
+
+  return S_OK;
+}
+
+// We don't support the concept of undo.
+HRESULT STDMETHODCALLTYPE WebBrowser::DiscardUndoState() { return E_NOTIMPL; }
+
+HRESULT STDMETHODCALLTYPE WebBrowser::DeactivateAndUndo() { return E_NOTIMPL; }
+
+// We don't support moving or resizing the control.
+HRESULT STDMETHODCALLTYPE
+WebBrowser::OnPosRectChange(__RPC__in LPCRECT lprcPosRect) {
+  return E_NOTIMPL;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// IOleClientSite
+//////////////////////////////////////////////////////////////////////////////
+// We don't need anything that IOleClientSite does, because we're doing OLE
+// only in the most basic sense and we don't support linking (or, indeed,
+// embedding), but some implementation of this interface is required for
+// OleCreate to work, so we have to have a stub version.
+
+HRESULT STDMETHODCALLTYPE WebBrowser::SaveObject() { return E_NOTIMPL; }
+
+HRESULT STDMETHODCALLTYPE
+WebBrowser::GetMoniker(DWORD dwAssign, DWORD dwWhichMoniker,
+                       __RPC__deref_out_opt IMoniker** ppmk) {
+  return E_NOTIMPL;
+}
+
+HRESULT STDMETHODCALLTYPE
+WebBrowser::GetContainer(__RPC__deref_out_opt IOleContainer** ppContainer) {
+  *ppContainer = nullptr;
+  return E_NOINTERFACE;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::ShowObject() { return S_OK; }
+
+HRESULT STDMETHODCALLTYPE WebBrowser::OnShowWindow(BOOL fShow) { return S_OK; }
+
+HRESULT STDMETHODCALLTYPE WebBrowser::RequestNewObjectLayout() {
+  return E_NOTIMPL;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// IDropTarget
+//////////////////////////////////////////////////////////////////////////////
+// This is a stub implementation which blocks all dropping. The main reason we
+// want to do that is prevent accidentally dropping something on the control
+// and having it navigate, because there's no recovering from that except to
+// restart the app, and also it would look ridiculous. There could also be
+// security implications though, which we'd rather just avoid engaging with
+// altogether if we can.
+
+HRESULT STDMETHODCALLTYPE
+WebBrowser::DragEnter(__RPC__in_opt IDataObject* pDataObj, DWORD grfKeyState,
+                      POINTL pt, __RPC__inout DWORD* pdwEffect) {
+  *pdwEffect = DROPEFFECT_NONE;
+  return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::DragOver(DWORD grfKeyState, POINTL pt,
+                                               __RPC__inout DWORD* pdwEffect) {
+  *pdwEffect = DROPEFFECT_NONE;
+  return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::DragLeave() { return S_OK; }
+
+HRESULT STDMETHODCALLTYPE WebBrowser::Drop(__RPC__in_opt IDataObject* pDataObj,
+                                           DWORD grfKeyState, POINTL pt,
+                                           __RPC__inout DWORD* pdwEffect) {
+  *pdwEffect = DROPEFFECT_NONE;
+  return S_OK;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// IStorage
+//////////////////////////////////////////////////////////////////////////////
+// We don't need anything that IStorage does, but we have to pass some
+// implementation of it to OleCreate, so we need to have a stub version.
+
+HRESULT STDMETHODCALLTYPE WebBrowser::CreateStream(
+    __RPC__in_string const OLECHAR* pwcsName, DWORD grfMode, DWORD reserved1,
+    DWORD reserved2, __RPC__deref_out_opt IStream** ppstm) {
+  *ppstm = nullptr;
+  return E_NOTIMPL;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::OpenStream(const OLECHAR* pwcsName,
+                                                 void* reserved1, DWORD grfMode,
+                                                 DWORD reserved2,
+                                                 IStream** ppstm) {
+  *ppstm = nullptr;
+  return E_NOTIMPL;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::CreateStorage(
+    __RPC__in_string const OLECHAR* pwcsName, DWORD grfMode, DWORD reserved1,
+    DWORD reserved2, __RPC__deref_out_opt IStorage** ppstg) {
+  *ppstg = nullptr;
+  return E_NOTIMPL;
+}
+
+HRESULT STDMETHODCALLTYPE
+WebBrowser::OpenStorage(__RPC__in_opt_string const OLECHAR* pwcsName,
+                        __RPC__in_opt IStorage* pstgPriority, DWORD grfMode,
+                        __RPC__deref_opt_in_opt SNB snbExclude, DWORD reserved,
+                        __RPC__deref_out_opt IStorage** ppstg) {
+  return E_NOTIMPL;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::CopyTo(DWORD ciidExclude,
+                                             const IID* rgiidExclude,
+                                             __RPC__in_opt SNB snbExclude,
+                                             IStorage* pstgDest) {
+  return E_NOTIMPL;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::MoveElementTo(
+    __RPC__in_string const OLECHAR* pwcsName, __RPC__in_opt IStorage* pstgDest,
+    __RPC__in_string const OLECHAR* pwcsNewName, DWORD grfFlags) {
+  return E_NOTIMPL;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::Commit(DWORD grfCommitFlags) {
+  return E_NOTIMPL;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::Revert() { return E_NOTIMPL; }
+
+HRESULT STDMETHODCALLTYPE WebBrowser::EnumElements(DWORD reserved1,
+                                                   void* reserved2,
+                                                   DWORD reserved3,
+                                                   IEnumSTATSTG** ppenum) {
+  return E_NOTIMPL;
+}
+
+HRESULT STDMETHODCALLTYPE
+WebBrowser::DestroyElement(__RPC__in_string const OLECHAR* pwcsName) {
+  return E_NOTIMPL;
+}
+
+HRESULT STDMETHODCALLTYPE
+WebBrowser::RenameElement(__RPC__in_string const OLECHAR* pwcsOldName,
+                          __RPC__in_string const OLECHAR* pwcsNewName) {
+  return E_NOTIMPL;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::SetElementTimes(
+    __RPC__in_opt_string const OLECHAR* pwcsName,
+    __RPC__in_opt const FILETIME* pctime, __RPC__in_opt const FILETIME* patime,
+    __RPC__in_opt const FILETIME* pmtime) {
+  return E_NOTIMPL;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::SetClass(__RPC__in REFCLSID clsid) {
+  return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::SetStateBits(DWORD grfStateBits,
+                                                   DWORD grfMask) {
+  return E_NOTIMPL;
+}
+
+HRESULT STDMETHODCALLTYPE WebBrowser::Stat(__RPC__out STATSTG* pstatstg,
+                                           DWORD grfStatFlag) {
+  return E_NOTIMPL;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// IDocHostUIHandler
+//////////////////////////////////////////////////////////////////////////////
+// Our implementation for this interface is basically all about disabling
+// things that we don't want/need.
+
+HRESULT __stdcall WebBrowser::ShowContextMenu(DWORD dwID, POINT* ppt,
+                                              IUnknown* pcmdtReserved,
+                                              IDispatch* pdispReserved) {
+  // Returning S_OK signals that we've handled the request for a context menu
+  // (which we did, by doing nothing), so the control won't try to open one.
+  return S_OK;
+}
+
+HRESULT __stdcall WebBrowser::GetHostInfo(DOCHOSTUIINFO* pInfo) {
+  pInfo->cbSize = sizeof(DOCHOSTUIINFO);
+  pInfo->dwFlags =
+      DOCHOSTUIFLAG_DIALOG | DOCHOSTUIFLAG_DISABLE_HELP_MENU |
+      DOCHOSTUIFLAG_NO3DBORDER | DOCHOSTUIFLAG_SCROLL_NO |
+      DOCHOSTUIFLAG_OPENNEWWIN | DOCHOSTUIFLAG_OVERRIDEBEHAVIORFACTORY |
+      DOCHOSTUIFLAG_THEME | DOCHOSTUIFLAG_LOCAL_MACHINE_ACCESS_CHECK |
+      DOCHOSTUIFLAG_DISABLE_UNTRUSTEDPROTOCOL | DOCHOSTUIFLAG_DPI_AWARE;
+  pInfo->dwDoubleClick = DOCHOSTUIDBLCLK_DEFAULT;
+  pInfo->pchHostCss = nullptr;
+  pInfo->pchHostNS = nullptr;
+  return S_OK;
+}
+
+HRESULT __stdcall WebBrowser::ShowUI(DWORD dwID,
+                                     IOleInPlaceActiveObject* pActiveObject,
+                                     IOleCommandTarget* pCommandTarget,
+                                     IOleInPlaceFrame* pFrame,
+                                     IOleInPlaceUIWindow* pDoc) {
+  return E_NOTIMPL;
+}
+
+HRESULT __stdcall WebBrowser::HideUI() { return E_NOTIMPL; }
+
+HRESULT __stdcall WebBrowser::UpdateUI() { return E_NOTIMPL; }
+
+HRESULT __stdcall WebBrowser::EnableModeless(BOOL fEnable) { return E_NOTIMPL; }
+
+HRESULT __stdcall WebBrowser::OnDocWindowActivate(BOOL fActivate) {
+  return E_NOTIMPL;
+}
+
+HRESULT __stdcall WebBrowser::OnFrameWindowActivate(BOOL fActivate) {
+  return E_NOTIMPL;
+}
+
+HRESULT __stdcall WebBrowser::ResizeBorder(LPCRECT prcBorder,
+                                           IOleInPlaceUIWindow* pUIWindow,
+                                           BOOL fRameWindow) {
+  return E_NOTIMPL;
+}
+
+HRESULT __stdcall WebBrowser::TranslateAccelerator(LPMSG lpMsg,
+                                                   const GUID* pguidCmdGroup,
+                                                   DWORD nCmdID) {
+  return S_FALSE;
+}
+
+HRESULT __stdcall WebBrowser::GetOptionKeyPath(LPOLESTR* pchKey, DWORD dw) {
+  return E_NOTIMPL;
+}
+
+HRESULT __stdcall WebBrowser::GetDropTarget(IDropTarget* pDropTarget,
+                                            IDropTarget** ppDropTarget) {
+  // The IDropTarget implementation that we need is an empty stub, so we'll do
+  // the easy and convenient thing and just use this object.
+  return QueryInterface(IID_PPV_ARGS(ppDropTarget));
+}
+
+HRESULT __stdcall WebBrowser::GetExternal(IDispatch** ppDispatch) {
+  // This object has to implement IDispatch anyway so that we can use
+  // DISPID_AMBIENT_DLCONTROL, so we'll make this the external handler also.
+  return QueryInterface(IID_PPV_ARGS(ppDispatch));
+}
+
+HRESULT __stdcall WebBrowser::TranslateUrl(DWORD dwTranslate, LPWSTR pchURLIn,
+                                           LPWSTR* ppchURLOut) {
+  *ppchURLOut = nullptr;
+  return E_NOTIMPL;
+}
+
+HRESULT __stdcall WebBrowser::FilterDataObject(IDataObject* pDO,
+                                               IDataObject** ppDORet) {
+  *ppDORet = nullptr;
+  return E_NOTIMPL;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// IDocHostShowUI
+//////////////////////////////////////////////////////////////////////////////
+
+HRESULT __stdcall WebBrowser::ShowMessage(HWND hwnd, LPOLESTR lpstrText,
+                                          LPOLESTR lpstrCaption, DWORD dwType,
+                                          LPOLESTR lpstrHelpFile,
+                                          DWORD dwHelpContext,
+                                          LRESULT* plResult) {
+  // Don't allow MSHTML to generate message boxes.
+  return S_OK;
+}
+
+HRESULT __stdcall WebBrowser::ShowHelp(HWND hwnd, LPOLESTR pszHelpFile,
+                                       UINT uCommand, DWORD dwData,
+                                       POINT ptMouse,
+                                       IDispatch* pDispatchObjectHit) {
+  // Don't allow MSHTML to show any help.
+  return S_OK;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// IDispatch
+//////////////////////////////////////////////////////////////////////////////
+
+// We're not using a type library.
+HRESULT __stdcall WebBrowser::GetTypeInfoCount(UINT* pctinfo) {
+  if (pctinfo) {
+    *pctinfo = 0;
+  }
+  return S_OK;
+}
+
+HRESULT __stdcall WebBrowser::GetTypeInfo(UINT iTInfo, LCID lcid,
+                                          ITypeInfo** ppTInfo) {
+  return E_NOTIMPL;
+}
+
+HRESULT __stdcall WebBrowser::GetIDsOfNames(REFIID riid, LPOLESTR* rgszNames,
+                                            UINT cNames, LCID lcid,
+                                            DISPID* rgDispId) {
+  if (cNames != 1) {
+    return E_NOTIMPL;
+  }
+
+  for (size_t i = 0; i < mCustomFunctions.size(); ++i) {
+    if (mCustomFunctions[i].mName == rgszNames[0]) {
+      // DISPID values need to be 1-indexed because 0 is reserved
+      // (DISPID_VALUE).
+      *rgDispId = i + 1;
+      return S_OK;
+    }
+  }
+
+  *rgDispId = DISPID_UNKNOWN;
+  return DISP_E_UNKNOWNNAME;
+}
+
+HRESULT __stdcall WebBrowser::Invoke(DISPID dispIdMember, REFIID riid,
+                                     LCID lcid, WORD wFlags,
+                                     DISPPARAMS* pDispParams,
+                                     VARIANT* pVarResult, EXCEPINFO* pExcepInfo,
+                                     UINT* puArgErr) {
+  if (dispIdMember == DISPID_AMBIENT_DLCONTROL && pVarResult) {
+    VariantClear(pVarResult);
+    pVarResult->vt = VT_I4;
+    // As a light security measure, disable a bunch of stuff we don't want
+    // to be able to run in the web control.
+    pVarResult->intVal = DLCTL_NO_JAVA | DLCTL_NO_DLACTIVEXCTLS |
+                         DLCTL_NO_RUNACTIVEXCTLS | DLCTL_NO_FRAMEDOWNLOAD |
+                         DLCTL_NO_BEHAVIORS | DLCTL_NO_CLIENTPULL |
+                         DLCTL_NOFRAMES | DLCTL_FORCEOFFLINE | DLCTL_SILENT |
+                         DLCTL_OFFLINE | DLCTL_DLIMAGES;
+    return S_OK;
+  }
+
+  // Otherwise this should be one of our custom functions.
+  // We only support invoking these as methods, not property access.
+  if ((wFlags & DISPATCH_METHOD) == 0) {
+    return DISP_E_TYPEMISMATCH;
+  }
+
+  // Make sure this DISPID is valid in our custom functions list.
+  // DISPID values are 1-indexed because 0 is reserved (DISPID_VALUE).
+  DISPID customFunctionIndex = dispIdMember - 1;
+  if (customFunctionIndex < 0 ||
+      customFunctionIndex >= (DISPID)mCustomFunctions.size()) {
+    return DISP_E_MEMBERNOTFOUND;
+  }
+
+  // If the caller passed an argument to this custom function, use it.
+  // If not, make an empty VARIANT we can pass to it instead.
+  VARIANT argument;
+  VariantInit(&argument);
+  if (pDispParams->cArgs > 0) {
+    argument = pDispParams->rgvarg[0];
+  }
+
+  CustomFunctionRecord foundFunction = mCustomFunctions[customFunctionIndex];
+  foundFunction.mFunction(foundFunction.mArg, argument, pVarResult);
+
+  return S_OK;
+}

other-licenses/nsis/Contrib/WebBrowser/WebBrowser.h

@@ -0,0 +1,250 @@
+// 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 <exdisp.h>
+#include <mshtmhst.h>
+
+#include <vector>
+#include <string>
+
+class WebBrowser final :
+    /* public IUnknown, */
+    /* public IOleWindow, */
+    public IOleInPlaceSite,
+    public IOleClientSite,
+    public IDropTarget,
+    public IStorage,
+    public IDocHostUIHandler,
+    public IDocHostShowUI,
+    public IDispatch {
+ public:
+  /////////////////////////////////////////////////////////////////////////////
+  // Our own methods
+  /////////////////////////////////////////////////////////////////////////////
+  WebBrowser(HWND hWndParent);
+  ~WebBrowser();
+
+  WebBrowser(const WebBrowser&) = delete;
+  WebBrowser& operator=(const WebBrowser&) = delete;
+
+  void Shutdown();
+
+  bool IsInitialized();
+
+  HRESULT ActiveObjectTranslateAccelerator(bool tab, LPMSG lpmsg);
+  void SetRect(const RECT& _rc);
+  void Resize(DWORD width, DWORD height);
+  void Navigate(wchar_t* szUrl);
+
+  using CustomFunction = void (*)(void* context, VARIANT parameter,
+                                  VARIANT* retVal);
+  void AddCustomFunction(wchar_t* name, CustomFunction function, void* arg);
+
+  /////////////////////////////////////////////////////////////////////////////
+  // Data members
+  /////////////////////////////////////////////////////////////////////////////
+ private:
+  IOleObject* mOleObject = nullptr;
+  IOleInPlaceObject* mOleInPlaceObject = nullptr;
+  IOleInPlaceActiveObject* mOleInPlaceActiveObject = nullptr;
+  IWebBrowser2* mWebBrowser2 = nullptr;
+
+  LONG mComRefCount = 0;
+
+  RECT mRect = {0, 0, 0, 0};
+
+  HWND mHwndParent = nullptr;
+
+  struct CustomFunctionRecord {
+    std::wstring mName;
+    CustomFunction mFunction;
+    void* mArg;
+  };
+  std::vector<CustomFunctionRecord> mCustomFunctions;
+
+  //////////////////////////////////////////////////////////////////////////////
+  // COM interface methods
+  //////////////////////////////////////////////////////////////////////////////
+ public:
+  // IUnknown
+  HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid,
+                                           void** ppvObject) override;
+  ULONG STDMETHODCALLTYPE AddRef() override;
+  ULONG STDMETHODCALLTYPE Release() override;
+
+  // IOleWindow
+  HRESULT STDMETHODCALLTYPE
+  GetWindow(__RPC__deref_out_opt HWND* phwnd) override;
+  HRESULT STDMETHODCALLTYPE ContextSensitiveHelp(BOOL fEnterMode) override;
+
+  // IOleInPlaceSite
+  HRESULT STDMETHODCALLTYPE CanInPlaceActivate() override;
+  HRESULT STDMETHODCALLTYPE OnInPlaceActivate() override;
+  HRESULT STDMETHODCALLTYPE OnUIActivate() override;
+  HRESULT STDMETHODCALLTYPE GetWindowContext(
+      __RPC__deref_out_opt IOleInPlaceFrame** ppFrame,
+      __RPC__deref_out_opt IOleInPlaceUIWindow** ppDoc,
+      __RPC__out LPRECT lprcPosRect, __RPC__out LPRECT lprcClipRect,
+      __RPC__inout LPOLEINPLACEFRAMEINFO lpFrameInfo) override;
+  HRESULT STDMETHODCALLTYPE Scroll(SIZE scrollExtant) override;
+  HRESULT STDMETHODCALLTYPE OnUIDeactivate(BOOL fUndoable) override;
+  HRESULT STDMETHODCALLTYPE OnInPlaceDeactivate() override;
+  HRESULT STDMETHODCALLTYPE DiscardUndoState() override;
+  HRESULT STDMETHODCALLTYPE DeactivateAndUndo() override;
+  HRESULT STDMETHODCALLTYPE
+  OnPosRectChange(__RPC__in LPCRECT lprcPosRect) override;
+
+  // IOleClientSite
+  HRESULT STDMETHODCALLTYPE SaveObject() override;
+  HRESULT STDMETHODCALLTYPE
+  GetMoniker(DWORD dwAssign, DWORD dwWhichMoniker,
+             __RPC__deref_out_opt IMoniker** ppmk) override;
+  HRESULT STDMETHODCALLTYPE
+  GetContainer(__RPC__deref_out_opt IOleContainer** ppContainer) override;
+  HRESULT STDMETHODCALLTYPE ShowObject() override;
+  HRESULT STDMETHODCALLTYPE OnShowWindow(BOOL fShow) override;
+  HRESULT STDMETHODCALLTYPE RequestNewObjectLayout() override;
+
+  // IDropTarget
+  HRESULT STDMETHODCALLTYPE DragEnter(__RPC__in_opt IDataObject* pDataObj,
+                                      DWORD grfKeyState, POINTL pt,
+                                      __RPC__inout DWORD* pdwEffect) override;
+  HRESULT STDMETHODCALLTYPE DragOver(DWORD grfKeyState, POINTL pt,
+                                     __RPC__inout DWORD* pdwEffect) override;
+  HRESULT STDMETHODCALLTYPE DragLeave() override;
+  HRESULT STDMETHODCALLTYPE Drop(__RPC__in_opt IDataObject* pDataObj,
+                                 DWORD grfKeyState, POINTL pt,
+                                 __RPC__inout DWORD* pdwEffect) override;
+
+  // IStorage
+  HRESULT STDMETHODCALLTYPE CreateStream(
+      __RPC__in_string const OLECHAR* pwcsName, DWORD grfMode, DWORD reserved1,
+      DWORD reserved2, __RPC__deref_out_opt IStream** ppstm) override;
+  HRESULT STDMETHODCALLTYPE OpenStream(const OLECHAR* pwcsName, void* reserved1,
+                                       DWORD grfMode, DWORD reserved2,
+                                       IStream** ppstm) override;
+  HRESULT STDMETHODCALLTYPE CreateStorage(
+      __RPC__in_string const OLECHAR* pwcsName, DWORD grfMode, DWORD reserved1,
+      DWORD reserved2, __RPC__deref_out_opt IStorage** ppstg) override;
+  HRESULT STDMETHODCALLTYPE
+  OpenStorage(__RPC__in_opt_string const OLECHAR* pwcsName,
+              __RPC__in_opt IStorage* pstgPriority, DWORD grfMode,
+              __RPC__deref_opt_in_opt SNB snbExclude, DWORD reserved,
+              __RPC__deref_out_opt IStorage** ppstg) override;
+  HRESULT STDMETHODCALLTYPE CopyTo(DWORD ciidExclude, const IID* rgiidExclude,
+                                   __RPC__in_opt SNB snbExclude,
+                                   IStorage* pstgDest) override;
+  HRESULT STDMETHODCALLTYPE MoveElementTo(
+      __RPC__in_string const OLECHAR* pwcsName,
+      __RPC__in_opt IStorage* pstgDest,
+      __RPC__in_string const OLECHAR* pwcsNewName, DWORD grfFlags) override;
+  HRESULT STDMETHODCALLTYPE Commit(DWORD grfCommitFlags) override;
+  HRESULT STDMETHODCALLTYPE Revert(void) override;
+  HRESULT STDMETHODCALLTYPE EnumElements(DWORD reserved1, void* reserved2,
+                                         DWORD reserved3,
+                                         IEnumSTATSTG** ppenum) override;
+  HRESULT STDMETHODCALLTYPE
+  DestroyElement(__RPC__in_string const OLECHAR* pwcsName) override;
+  HRESULT STDMETHODCALLTYPE
+  RenameElement(__RPC__in_string const OLECHAR* pwcsOldName,
+                __RPC__in_string const OLECHAR* pwcsNewName) override;
+  HRESULT STDMETHODCALLTYPE
+  SetElementTimes(__RPC__in_opt_string const OLECHAR* pwcsName,
+                  __RPC__in_opt const FILETIME* pctime,
+                  __RPC__in_opt const FILETIME* patime,
+                  __RPC__in_opt const FILETIME* pmtime) override;
+  HRESULT STDMETHODCALLTYPE SetClass(__RPC__in REFCLSID clsid) override;
+  HRESULT STDMETHODCALLTYPE SetStateBits(DWORD grfStateBits,
+                                         DWORD grfMask) override;
+  HRESULT STDMETHODCALLTYPE Stat(__RPC__out STATSTG* pstatstg,
+                                 DWORD grfStatFlag) override;
+
+  // IDocHostUIHandler
+  HRESULT STDMETHODCALLTYPE ShowContextMenu(
+      _In_ DWORD dwID, _In_ POINT* ppt, _In_ IUnknown* pcmdtReserved,
+      _In_ IDispatch* pdispReserved) override;
+  HRESULT STDMETHODCALLTYPE GetHostInfo(_Inout_ DOCHOSTUIINFO* pInfo) override;
+  HRESULT STDMETHODCALLTYPE ShowUI(_In_ DWORD dwID,
+                                   _In_ IOleInPlaceActiveObject* pActiveObject,
+                                   _In_ IOleCommandTarget* pCommandTarget,
+                                   _In_ IOleInPlaceFrame* pFrame,
+                                   _In_ IOleInPlaceUIWindow* pDoc) override;
+  HRESULT STDMETHODCALLTYPE HideUI() override;
+  HRESULT STDMETHODCALLTYPE UpdateUI() override;
+  HRESULT STDMETHODCALLTYPE EnableModeless(BOOL fEnable) override;
+  HRESULT STDMETHODCALLTYPE OnDocWindowActivate(BOOL fActivate) override;
+  HRESULT STDMETHODCALLTYPE OnFrameWindowActivate(BOOL fActivate) override;
+  HRESULT STDMETHODCALLTYPE ResizeBorder(_In_ LPCRECT prcBorder,
+                                         _In_ IOleInPlaceUIWindow* pUIWindow,
+                                         _In_ BOOL fRameWindow) override;
+  HRESULT STDMETHODCALLTYPE TranslateAccelerator(LPMSG lpMsg,
+                                                 const GUID* pguidCmdGroup,
+                                                 DWORD nCmdID) override;
+  HRESULT STDMETHODCALLTYPE GetOptionKeyPath(_Out_ LPOLESTR* pchKey,
+                                             DWORD dw) override;
+  HRESULT STDMETHODCALLTYPE
+  GetDropTarget(_In_ IDropTarget* pDropTarget,
+                _Outptr_ IDropTarget** ppDropTarget) override;
+  HRESULT STDMETHODCALLTYPE
+  GetExternal(_Outptr_result_maybenull_ IDispatch** ppDispatch) override;
+  HRESULT STDMETHODCALLTYPE TranslateUrl(DWORD dwTranslate,
+                                         _In_ LPWSTR pchURLIn,
+                                         _Outptr_ LPWSTR* ppchURLOut) override;
+  HRESULT STDMETHODCALLTYPE
+  FilterDataObject(_In_ IDataObject* pDO,
+                   _Outptr_result_maybenull_ IDataObject** ppDORet) override;
+
+  // IDocHostShowUI
+  HRESULT STDMETHODCALLTYPE ShowMessage(
+      /* [in] */ HWND hwnd,
+      /* [annotation][in] */
+      _In_ LPOLESTR lpstrText,
+      /* [annotation][in] */
+      _In_ LPOLESTR lpstrCaption,
+      /* [in] */ DWORD dwType,
+      /* [annotation][in] */
+      _In_ LPOLESTR lpstrHelpFile,
+      /* [in] */ DWORD dwHelpContext,
+      /* [out] */ LRESULT* plResult) override;
+  HRESULT STDMETHODCALLTYPE ShowHelp(
+      /* [in] */ HWND hwnd,
+      /* [annotation][in] */
+      _In_ LPOLESTR pszHelpFile,
+      /* [in] */ UINT uCommand,
+      /* [in] */ DWORD dwData,
+      /* [in] */ POINT ptMouse,
+      /* [out] */ IDispatch* pDispatchObjectHit) override;
+
+  // IDispatch
+  HRESULT STDMETHODCALLTYPE GetTypeInfoCount(
+      /* [out] */ __RPC__out UINT* pctinfo) override;
+  HRESULT STDMETHODCALLTYPE GetTypeInfo(
+      /* [in] */ UINT iTInfo,
+      /* [in] */ LCID lcid,
+      /* [out] */ __RPC__deref_out_opt ITypeInfo** ppTInfo) override;
+  HRESULT STDMETHODCALLTYPE GetIDsOfNames(
+      /* [in] */ __RPC__in REFIID riid,
+      /* [size_is][in] */ __RPC__in_ecount_full(cNames) LPOLESTR* rgszNames,
+      /* [range][in] */ __RPC__in_range(0, 16384) UINT cNames,
+      /* [in] */ LCID lcid,
+      /* [size_is][out] */ __RPC__out_ecount_full(cNames) DISPID* rgDispId)
+      override;
+  /* [local] */ HRESULT STDMETHODCALLTYPE Invoke(
+      /* [annotation][in] */
+      _In_ DISPID dispIdMember,
+      /* [annotation][in] */
+      _In_ REFIID riid,
+      /* [annotation][in] */
+      _In_ LCID lcid,
+      /* [annotation][in] */
+      _In_ WORD wFlags,
+      /* [annotation][out][in] */
+      _In_ DISPPARAMS* pDispParams,
+      /* [annotation][out] */
+      _Out_opt_ VARIANT* pVarResult,
+      /* [annotation][out] */
+      _Out_opt_ EXCEPINFO* pExcepInfo,
+      /* [annotation][out] */
+      _Out_opt_ UINT* puArgErr) override;
+};

other-licenses/nsis/Contrib/WebBrowser/WebBrowser.sln

@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.28803.452
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "WebBrowser", "WebBrowser.vcxproj", "{EF903B79-AD97-45E0-BC6E-4FF846D6A2ED}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x86 = Debug|x86
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{EF903B79-AD97-45E0-BC6E-4FF846D6A2ED}.Debug|x86.ActiveCfg = Debug|Win32
+		{EF903B79-AD97-45E0-BC6E-4FF846D6A2ED}.Debug|x86.Build.0 = Debug|Win32
+		{EF903B79-AD97-45E0-BC6E-4FF846D6A2ED}.Release|x86.ActiveCfg = Release|Win32
+		{EF903B79-AD97-45E0-BC6E-4FF846D6A2ED}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {3A087FCC-55DC-4C48-8A22-A6FFB3247674}
+	EndGlobalSection
+EndGlobal

other-licenses/nsis/Contrib/WebBrowser/WebBrowser.vcxproj

@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <SccProjectName />
+    <SccLocalPath />
+    <ProjectGuid>{EF903B79-AD97-45E0-BC6E-4FF846D6A2ED}</ProjectGuid>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <PlatformToolset>v142</PlatformToolset>
+    <UseOfMfc>false</UseOfMfc>
+    <CharacterSet>Unicode</CharacterSet>
+    <SpectreMitigation>false</SpectreMitigation>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <PlatformToolset>v142</PlatformToolset>
+    <UseOfMfc>false</UseOfMfc>
+    <CharacterSet>Unicode</CharacterSet>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <SpectreMitigation>false</SpectreMitigation>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(VCTargetsPath)Microsoft.Cpp.UpgradeFromVC60.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(VCTargetsPath)Microsoft.Cpp.UpgradeFromVC60.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <OutDir>.\Release\</OutDir>
+    <IntDir>.\Release\</IntDir>
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <OutDir>.\Debug\</OutDir>
+    <IntDir>.\Debug\</IntDir>
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <StringPooling>true</StringPooling>
+      <Optimization>MinSpace</Optimization>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <WarningLevel>Level3</WarningLevel>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FavorSizeOrSpeed>Size</FavorSizeOrSpeed>
+      <DebugInformationFormat>None</DebugInformationFormat>
+      <ExceptionHandling>false</ExceptionHandling>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <RuntimeTypeInfo>false</RuntimeTypeInfo>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+    </ClCompile>
+    <Midl>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <TypeLibraryName>.\Release\WebBrowser.tlb</TypeLibraryName>
+      <MkTypLibCompatible>true</MkTypLibCompatible>
+      <TargetEnvironment>Win32</TargetEnvironment>
+    </Midl>
+    <ResourceCompile>
+      <Culture>0x080a</Culture>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ResourceCompile>
+    <Bscmake>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <OutputFile>.\Release\WebBrowser.bsc</OutputFile>
+    </Bscmake>
+    <Link>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <LinkDLL>true</LinkDLL>
+      <SubSystem>Windows</SubSystem>
+      <OutputFile>.\Release\WebBrowser.dll</OutputFile>
+      <ImportLibrary>.\Release\WebBrowser.lib</ImportLibrary>
+      <AdditionalDependencies>odbc32.lib;odbccp32.lib;urlmon.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <GenerateDebugInformation>false</GenerateDebugInformation>
+      <OptimizeReferences>true</OptimizeReferences>
+      <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <EntryPointSymbol>
+      </EntryPointSymbol>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <InlineFunctionExpansion>Default</InlineFunctionExpansion>
+      <Optimization>Disabled</Optimization>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <ExceptionHandling>false</ExceptionHandling>
+      <LanguageStandard>Default</LanguageStandard>
+    </ClCompile>
+    <Midl>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <TypeLibraryName>.\Debug\WebBrowser.tlb</TypeLibraryName>
+      <MkTypLibCompatible>true</MkTypLibCompatible>
+      <TargetEnvironment>Win32</TargetEnvironment>
+    </Midl>
+    <ResourceCompile>
+      <Culture>0x080a</Culture>
+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ResourceCompile>
+    <Bscmake>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <OutputFile>.\Debug\WebBrowser.bsc</OutputFile>
+    </Bscmake>
+    <Link>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <LinkDLL>true</LinkDLL>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Windows</SubSystem>
+      <OutputFile>.\Debug\WebBrowser.dll</OutputFile>
+      <ImportLibrary>.\Debug\WebBrowser.lib</ImportLibrary>
+      <AdditionalDependencies>odbc32.lib;odbccp32.lib;urlmon.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OptimizeReferences>false</OptimizeReferences>
+      <ImageHasSafeExceptionHandlers>false</ImageHasSafeExceptionHandlers>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="CustomFunctions.cpp" />
+    <ClCompile Include="exdll.cpp" />
+    <ClCompile Include="main.cpp" />
+    <ClCompile Include="Timers.cpp" />
+    <ClCompile Include="WebBrowser.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="exdll.h" />
+    <ClInclude Include="resource.h" />
+    <ClInclude Include="WebBrowser.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="resource.rc" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

other-licenses/nsis/Contrib/WebBrowser/exdll.cpp

@@ -0,0 +1,30 @@
+// 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 "exdll.h"
+
+unsigned int g_stringsize;
+stack_t** g_stacktop;
+int(__stdcall* g_executeCodeSegment)(int, HWND);
+HWND g_hwndParent;
+
+int popstring(TCHAR* str) {
+  stack_t* th;
+  if (!g_stacktop || !*g_stacktop) return 1;
+  th = (*g_stacktop);
+  lstrcpy(str, th->text);
+  *g_stacktop = th->next;
+  GlobalFree((HGLOBAL)th);
+  return 0;
+}
+
+void pushstring(const TCHAR* str) {
+  stack_t* th;
+  if (!g_stacktop) return;
+  th = (stack_t*)GlobalAlloc(GPTR,
+                             sizeof(stack_t) + (g_stringsize * sizeof(TCHAR)));
+  lstrcpyn(th->text, str, g_stringsize);
+  th->next = *g_stacktop;
+  *g_stacktop = th;
+}

other-licenses/nsis/Contrib/WebBrowser/exdll.h

@@ -0,0 +1,73 @@
+// 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/.
+
+#ifndef _EXDLL_H_
+#define _EXDLL_H_
+
+#include <windows.h>
+#include <tchar.h>
+
+#define PLUGINFUNCTION(name)                                   \
+  extern "C" void __declspec(dllexport)                        \
+      name(HWND hWndParent, int string_size, TCHAR* variables, \
+           stack_t** stacktop, extra_parameters* extra)
+
+#define EXDLL_INIT()                                  \
+  {                                                   \
+    g_stringsize = string_size;                       \
+    g_stacktop = stacktop;                            \
+    g_executeCodeSegment = extra->ExecuteCodeSegment; \
+    g_hwndParent = hWndParent;                        \
+  }
+
+#define WM_NOTIFY_OUTER_NEXT (WM_USER + 0x8)
+#define WM_NOTIFY_CUSTOM_READY (WM_USER + 0xd)
+
+typedef struct _stack_t {
+  struct _stack_t* next;
+  TCHAR text[1];  // the real length of this buffer should be string_size
+} stack_t;
+
+extern unsigned int g_stringsize;
+extern stack_t** g_stacktop;
+extern int(__stdcall* g_executeCodeSegment)(int, HWND);
+extern HWND g_hwndParent;
+
+typedef struct {
+  int autoclose;
+  int all_user_var;
+  int exec_error;
+  int abort;
+  int exec_reboot;
+  int reboot_called;
+  int XXX_cur_insttype;      // deprecated
+  int XXX_insttype_changed;  // deprecated
+  int silent;
+  int instdir_error;
+  int rtl;
+  int errlvl;
+} exec_flags;
+
+// NSIS Plug-In Callback Messages
+enum NSPIM {
+  NSPIM_UNLOAD,     // This is the last message a plugin gets, do final cleanup
+  NSPIM_GUIUNLOAD,  // Called after .onGUIEnd
+};
+
+typedef UINT_PTR (*NSISPLUGINCALLBACK)(enum NSPIM);
+
+typedef struct {
+  exec_flags* exec_flags;
+  int(__stdcall* ExecuteCodeSegment)(int, HWND);
+  void(__stdcall* validate_filename)(LPWSTR);
+  int(__stdcall* RegisterPluginCallback)(
+      HMODULE,
+      NSISPLUGINCALLBACK);  // returns 0 on success, 1 if already
+                            // registered and < 0 on errors
+} extra_parameters;
+
+int popstring(TCHAR* str);
+void pushstring(const TCHAR* str);
+
+#endif  //_EXDLL_H_

other-licenses/nsis/Contrib/WebBrowser/main.cpp

@@ -0,0 +1,199 @@
+// 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 <windows.h>
+#include "resource.h"
+#include "WebBrowser.h"
+#include "exdll.h"
+
+// These variables are global because they're needed by more than one of
+// our plugin methods. The expectation is that these are safe because the
+// NSIS framework doesn't really support more than one dialog or thread
+// at a time, and that means we don't have to either.
+
+// Instance handle for this DLL
+HINSTANCE gHInst = nullptr;
+// Parent window proc which we'll need to override and then restore
+WNDPROC gWndProcOld = nullptr;
+// Handle to the dialog we'll create
+HWND gHwnd = nullptr;
+// Set to true when our dialog should be destroyed
+bool gDone = false;
+// Web browser OLE site
+WebBrowser* gBrowser = nullptr;
+
+// Set web browser control feature flags that are configured on a per-process
+// basis, not for individual instances of the control. This mainly means
+// disabling things that could turn into security holes.
+static void ConfigurePerProcessBrowserFeatures() {
+  // For most of the features we're configuring, setting them to TRUE means
+  // we're disabling something, but for a few setting them to FALSE disables the
+  // thing. We don't necessarily care about *every* feature that's in the
+  // INTERNETFEATURELIST enum, but it seems safer to set them all anyway, to
+  // make sure we don't miss anything we *do* care about.
+  struct Feature {
+    INTERNETFEATURELIST id;
+    BOOL value;
+  } features[] = {{FEATURE_OBJECT_CACHING, TRUE},
+                  {FEATURE_ZONE_ELEVATION, TRUE},
+                  {FEATURE_MIME_HANDLING, TRUE},
+                  {FEATURE_MIME_SNIFFING, FALSE},
+                  {FEATURE_WINDOW_RESTRICTIONS, TRUE},
+                  {FEATURE_WEBOC_POPUPMANAGEMENT, TRUE},
+                  {FEATURE_BEHAVIORS, TRUE},
+                  {FEATURE_DISABLE_MK_PROTOCOL, TRUE},
+                  // It isn't possible to set FEATURE_LOCALMACHINE_LOCKDOWN
+                  // using the SET_FEATURE_ON_PROCESS mode; see the MSDN page
+                  // on CoInternetSetFeatureEnabled for the explanation.
+                  //{FEATURE_LOCALMACHINE_LOCKDOWN, TRUE},
+                  {FEATURE_SECURITYBAND, FALSE},
+                  {FEATURE_RESTRICT_ACTIVEXINSTALL, TRUE},
+                  {FEATURE_VALIDATE_NAVIGATE_URL, TRUE},
+                  {FEATURE_RESTRICT_FILEDOWNLOAD, TRUE},
+                  {FEATURE_ADDON_MANAGEMENT, TRUE},
+                  {FEATURE_PROTOCOL_LOCKDOWN, TRUE},
+                  {FEATURE_HTTP_USERNAME_PASSWORD_DISABLE, TRUE},
+                  {FEATURE_SAFE_BINDTOOBJECT, TRUE},
+                  {FEATURE_UNC_SAVEDFILECHECK, TRUE},
+                  {FEATURE_GET_URL_DOM_FILEPATH_UNENCODED, FALSE},
+                  {FEATURE_TABBED_BROWSING, FALSE},
+                  {FEATURE_SSLUX, FALSE},
+                  {FEATURE_DISABLE_NAVIGATION_SOUNDS, TRUE},
+                  {FEATURE_DISABLE_LEGACY_COMPRESSION, TRUE},
+                  {FEATURE_FORCE_ADDR_AND_STATUS, FALSE},
+                  {FEATURE_XMLHTTP, FALSE},
+                  {FEATURE_DISABLE_TELNET_PROTOCOL, TRUE},
+                  {FEATURE_FEEDS, FALSE},
+                  {FEATURE_BLOCK_INPUT_PROMPTS, TRUE}};
+
+  for (Feature feature : features) {
+    CoInternetSetFeatureEnabled(feature.id, SET_FEATURE_ON_PROCESS,
+                                feature.value);
+  }
+}
+
+BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID) {
+  if (reason == DLL_PROCESS_ATTACH) {
+    gHInst = instance;
+    (void)OleInitialize(nullptr);
+    ConfigurePerProcessBrowserFeatures();
+  }
+  return TRUE;
+}
+
+UINT_PTR __cdecl NSISPluginCallback(NSPIM msg) {
+  if (msg == NSPIM_UNLOAD) {
+    OleUninitialize();
+  }
+  return 0;
+}
+
+BOOL CALLBACK ParentWndProc(HWND hwnd, UINT message, WPARAM wParam,
+                            LPARAM lParam) {
+  BOOL bRes =
+      CallWindowProc((WNDPROC)gWndProcOld, hwnd, message, wParam, lParam);
+  if (!bRes && message == WM_NOTIFY_OUTER_NEXT) {
+    gDone = true;
+    PostMessage(gHwnd, WM_CLOSE, 0, 0);
+  }
+  return bRes;
+}
+
+BOOL CALLBACK DlgProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) {
+  return FALSE;
+}
+
+void Init(HWND hWndParent, int string_size, TCHAR* variables,
+          stack_t** stacktop, extra_parameters* extra) {
+  EXDLL_INIT();
+  extra->RegisterPluginCallback(gHInst, NSISPluginCallback);
+
+  HWND hwndChild = GetDlgItem(hWndParent, 1018);
+  if (!hwndChild) {
+    return;
+  }
+
+  HWND hwnd =
+      CreateDialog(gHInst, MAKEINTRESOURCE(IDD_DIALOG1), hWndParent, DlgProc);
+  if (!hwnd) {
+    gDone = true;
+  } else {
+    gDone = false;
+    gWndProcOld =
+        (WNDPROC)SetWindowLong(hWndParent, DWL_DLGPROC, (LONG)ParentWndProc);
+
+    // Tell NSIS to replace its inner dialog with ours.
+    SendMessage(hWndParent, WM_NOTIFY_CUSTOM_READY, (WPARAM)hwnd, 0);
+
+    // Initialize the browser control.
+    if (gBrowser) {
+      gBrowser->Shutdown();
+      gBrowser->Release();
+    }
+    gBrowser = new WebBrowser(hwnd);
+
+    if (!gBrowser || !gBrowser->IsInitialized()) {
+      return;
+    }
+
+    gHwnd = hwnd;
+
+    // Move our dialog to match the size of the parent.
+    RECT r;
+    GetClientRect(hwndChild, &r);
+    MoveWindow(hwnd, r.left, r.top, r.right - r.left, r.bottom - r.top, FALSE);
+    gBrowser->SetRect(r);
+  }
+}
+
+PLUGINFUNCTION(ShowPage) {
+  if (!gBrowser) {
+    Init(hWndParent, string_size, variables, stacktop, extra);
+  }
+
+  if (!gBrowser->IsInitialized()) {
+    return;
+  }
+
+  TCHAR* sUrl =
+      (TCHAR*)HeapAlloc(GetProcessHeap(), 0, g_stringsize * sizeof(TCHAR));
+  popstring(sUrl);
+
+  if (gBrowser) {
+    gBrowser->Navigate(sUrl);
+
+    ShowWindow(gHwnd, SW_SHOWNA);
+    UpdateWindow(gHwnd);
+
+    while (!gDone) {
+      // This explicit wait call is needed rather than just a blocking
+      // GetMessage because we need this thread to be alertable so that our
+      // timers can wake it up and run their callbacks.
+      MsgWaitForMultipleObjectsEx(0, nullptr, 100, QS_ALLINPUT,
+                                  MWMO_ALERTABLE | MWMO_INPUTAVAILABLE);
+      MSG msg;
+      if (PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE)) {
+        bool tab = msg.message == WM_KEYDOWN && msg.wParam == VK_TAB;
+
+        if (gBrowser->ActiveObjectTranslateAccelerator(tab, &msg) != S_OK &&
+            !IsDialogMessage(gHwnd, &msg) &&
+            !IsDialogMessage(g_hwndParent, &msg)) {
+          TranslateMessage(&msg);
+          DispatchMessage(&msg);
+        }
+      }
+    }
+
+    SetWindowLong(g_hwndParent, DWL_DLGPROC, (LONG)gWndProcOld);
+    if (gHwnd) {
+      DestroyWindow(gHwnd);
+    }
+
+    gBrowser->Shutdown();
+    gBrowser->Release();
+    gBrowser = nullptr;
+  }
+
+  HeapFree(GetProcessHeap(), 0, (char*)sUrl);
+}

other-licenses/nsis/Contrib/WebBrowser/resource.h

@@ -0,0 +1,5 @@
+// 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/.
+
+#define IDD_DIALOG1 101

other-licenses/nsis/Contrib/WebBrowser/resource.rc

@@ -0,0 +1,14 @@
+// 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 "resource.h"
+#include "afxres.h"
+
+// The size of this dialog is a placeholder;
+// it's going to get resized to fit its parent.
+IDD_DIALOG1 DIALOGEX 0, 0, 1, 1
+STYLE DS_CONTROL | WS_CHILD | WS_CLIPSIBLINGS
+FONT 8, "MS Shell Dlg"
+BEGIN
+END