Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

8 files changed, 587 insertions, 0 deletions

diff --git a/toolkit/mozapps/notificationserver/EventLog.h b/toolkit/mozapps/notificationserver/EventLog.h
new file mode 100644
index 0000000000..fbd5d3343b
--- /dev/null
+++ b/toolkit/mozapps/notificationserver/EventLog.h
@@ -0,0 +1,16 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* 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 NotificationServer_EventLog_h__
+#define NotificationServer_EventLog_h__
+
+#include "mozilla/WindowsEventLog.h"
+
+#define LOG_ERROR_MESSAGE(format, ...) \
+  MOZ_WIN_EVENT_LOG_ERROR_MESSAGE(     \
+      L"" MOZ_APP_DISPLAYNAME " Notification Server", format, __VA_ARGS__)
+
+#endif  // NotificationServer_EventLog_h__
diff --git a/toolkit/mozapps/notificationserver/NotificationCallback.cpp b/toolkit/mozapps/notificationserver/NotificationCallback.cpp
new file mode 100644
index 0000000000..dca9d327a2
--- /dev/null
+++ b/toolkit/mozapps/notificationserver/NotificationCallback.cpp
@@ -0,0 +1,264 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=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 "EventLog.h"
+#include "NotificationCallback.h"
+
+#include <sstream>
+#include <string>
+#include <vector>
+
+#include "mozilla/CmdLineAndEnvUtils.h"
+#include "mozilla/ToastNotificationHeaderOnlyUtils.h"
+
+using namespace mozilla::widget::toastnotification;
+
+HRESULT STDMETHODCALLTYPE
+NotificationCallback::QueryInterface(REFIID riid, void** ppvObject) {
+  if (!ppvObject) {
+    return E_POINTER;
+  }
+
+  *ppvObject = nullptr;
+
+  if (!(riid == guid || riid == __uuidof(INotificationActivationCallback) ||
+        riid == __uuidof(IUnknown))) {
+    return E_NOINTERFACE;
+  }
+
+  AddRef();
+  *ppvObject = reinterpret_cast<void*>(this);
+
+  return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE NotificationCallback::Activate(
+    LPCWSTR appUserModelId, LPCWSTR invokedArgs,
+    const NOTIFICATION_USER_INPUT_DATA* data, ULONG dataCount) {
+  HandleActivation(invokedArgs);
+
+  // Windows 8 style callbacks are not called and notifications are not removed
+  // from the Action Center unless we return `S_OK`, so always do so even if
+  // we're unable to handle the notification properly.
+  return S_OK;
+}
+
+void NotificationCallback::HandleActivation(LPCWSTR invokedArgs) {
+  LOG_ERROR_MESSAGE(L"Invoked with arguments: '%s'", invokedArgs);
+
+  auto maybeArgs = ParseToastArguments(invokedArgs);
+  if (!maybeArgs) {
+    LOG_ERROR_MESSAGE(L"COM server disabled for toast");
+    return;
+  }
+  const auto& args = maybeArgs.value();
+  auto [programPath, cmdLine] = BuildRunCommand(args);
+
+  // This pipe object will let Firefox notify us when it has handled the
+  // notification. Create this before interacting with the application so the
+  // application can rely on it existing.
+  auto maybePipe = CreatePipe(args.windowsTag);
+
+  // Run the application.
+
+  STARTUPINFOW si = {};
+  si.cb = sizeof(STARTUPINFOW);
+  PROCESS_INFORMATION pi = {};
+
+  // Runs `{program path} [--profile {profile path}] [--notification-windowsTag
+  // {tag}]`.
+  CreateProcessW(programPath.c_str(), cmdLine.get(), nullptr, nullptr, false,
+                 DETACHED_PROCESS | NORMAL_PRIORITY_CLASS, nullptr, nullptr,
+                 &si, &pi);
+
+  LOG_ERROR_MESSAGE(L"Invoked %s", cmdLine.get());
+
+  // Transfer `SetForegroundWindow` permission to the launched application.
+
+  maybePipe.apply([](const auto& pipe) {
+    if (ConnectPipeWithTimeout(pipe)) {
+      HandlePipeMessages(pipe);
+    }
+  });
+}
+
+mozilla::Maybe<ToastArgs> NotificationCallback::ParseToastArguments(
+    LPCWSTR invokedArgs) {
+  ToastArgs parsedArgs;
+  std::wistringstream args(invokedArgs);
+  bool serverDisabled = true;
+
+  for (std::wstring key, value;
+       std::getline(args, key) && std::getline(args, value);) {
+    if (key == kLaunchArgProgram) {
+      serverDisabled = false;
+    } else if (key == kLaunchArgProfile) {
+      parsedArgs.profile = value;
+    } else if (key == kLaunchArgTag) {
+      parsedArgs.windowsTag = value;
+    } else if (key == kLaunchArgAction) {
+      // Remainder of args are from the Web Notification action, don't parse.
+      // See https://bugzilla.mozilla.org/show_bug.cgi?id=1781929.
+      break;
+    }
+  }
+
+  if (serverDisabled) {
+    return mozilla::Nothing();
+  }
+
+  return mozilla::Some(parsedArgs);
+}
+
+std::tuple<path, mozilla::UniquePtr<wchar_t[]>>
+NotificationCallback::BuildRunCommand(const ToastArgs& args) {
+  path programPath = installDir / L"" MOZ_APP_NAME;
+  programPath += L".exe";
+
+  std::vector<const wchar_t*> childArgv;
+  childArgv.push_back(programPath.c_str());
+
+  if (!args.profile.empty()) {
+    childArgv.push_back(L"--profile");
+    childArgv.push_back(args.profile.c_str());
+  } else {
+    LOG_ERROR_MESSAGE(L"No profile; invocation will choose default profile");
+  }
+
+  if (!args.windowsTag.empty()) {
+    childArgv.push_back(L"--notification-windowsTag");
+    childArgv.push_back(args.windowsTag.c_str());
+  } else {
+    LOG_ERROR_MESSAGE(L"No windowsTag; invoking anyway");
+  }
+
+  return {programPath,
+          mozilla::MakeCommandLine(childArgv.size(), childArgv.data())};
+}
+
+mozilla::Maybe<nsAutoHandle> NotificationCallback::CreatePipe(
+    const std::wstring& tag) {
+  if (tag.empty()) {
+    return mozilla::Nothing();
+  }
+
+  // Prefix required by pipe API.
+  std::wstring pipeName = GetNotificationPipeName(tag.c_str());
+
+  nsAutoHandle pipe(CreateNamedPipeW(
+      pipeName.c_str(), PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
+      PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT |
+          PIPE_REJECT_REMOTE_CLIENTS,
+      1, sizeof(ToastNotificationPermissionMessage),
+      sizeof(ToastNotificationPidMessage), 0, nullptr));
+  if (pipe.get() == INVALID_HANDLE_VALUE) {
+    LOG_ERROR_MESSAGE(L"Error creating pipe %s, error %lu", pipeName.c_str(),
+                      GetLastError());
+    return mozilla::Nothing();
+  }
+
+  return mozilla::Some(pipe.out());
+}
+
+bool NotificationCallback::ConnectPipeWithTimeout(const nsAutoHandle& pipe) {
+  nsAutoHandle overlappedEvent(CreateEventW(nullptr, TRUE, FALSE, nullptr));
+  if (!overlappedEvent) {
+    LOG_ERROR_MESSAGE(L"Error creating pipe connect event, error %lu",
+                      GetLastError());
+    return false;
+  }
+
+  OVERLAPPED overlappedConnect{};
+  overlappedConnect.hEvent = overlappedEvent.get();
+
+  BOOL result = ConnectNamedPipe(pipe.get(), &overlappedConnect);
+  DWORD lastError = GetLastError();
+  if (lastError == ERROR_IO_PENDING) {
+    LOG_ERROR_MESSAGE(L"Waiting on pipe connection");
+
+    if (!WaitEventWithTimeout(overlappedEvent)) {
+      LOG_ERROR_MESSAGE(
+          L"Pipe connect wait failed, cancelling (connection may still "
+          L"succeed)");
+
+      CancelIo(pipe.get());
+      DWORD undefined;
+      BOOL overlappedResult =
+          GetOverlappedResult(pipe.get(), &overlappedConnect, &undefined, TRUE);
+      if (!overlappedResult || GetLastError() != ERROR_PIPE_CONNECTED) {
+        LOG_ERROR_MESSAGE(L"Pipe connect failed, error %lu", GetLastError());
+        return false;
+      }
+
+      // Pipe connected before cancellation, fall through.
+    }
+  } else if (result) {
+    // Overlapped `ConnectNamedPipe` should return 0.
+    LOG_ERROR_MESSAGE(L"Error connecting pipe, error %lu", lastError);
+    return false;
+  } else if (lastError != ERROR_PIPE_CONNECTED) {
+    LOG_ERROR_MESSAGE(L"Error connecting pipe, error %lu", lastError);
+    return false;
+  }
+
+  LOG_ERROR_MESSAGE(L"Pipe connected!");
+  return true;
+}
+
+void NotificationCallback::HandlePipeMessages(const nsAutoHandle& pipe) {
+  ToastNotificationPidMessage in{};
+  auto read = [&](OVERLAPPED& overlapped) {
+    return ReadFile(pipe.get(), &in, sizeof(in), nullptr, &overlapped);
+  };
+  if (!SyncDoOverlappedIOWithTimeout(pipe, sizeof(in), read)) {
+    LOG_ERROR_MESSAGE(L"Pipe read failed");
+    return;
+  }
+
+  ToastNotificationPermissionMessage out{};
+  out.setForegroundPermissionGranted = TransferForegroundPermission(in.pid);
+  auto write = [&](OVERLAPPED& overlapped) {
+    return WriteFile(pipe.get(), &out, sizeof(out), nullptr, &overlapped);
+  };
+  if (!SyncDoOverlappedIOWithTimeout(pipe, sizeof(out), write)) {
+    LOG_ERROR_MESSAGE(L"Pipe write failed");
+    return;
+  }
+
+  LOG_ERROR_MESSAGE(L"Pipe write succeeded!");
+}
+
+DWORD NotificationCallback::TransferForegroundPermission(DWORD pid) {
+  // When the instance of Firefox is still running we need to grant it
+  // foreground permission to bring itself to the foreground. We're able to do
+  // this even though the COM server is not the foreground process likely due to
+  // Windows granting permission to the COM object via
+  // `CoAllowSetForegroundWindow`.
+  //
+  // Note that issues surrounding `SetForegroundWindow` permissions are obscured
+  // when builds are run with a debugger, whereupon Windows grants
+  // `SetForegroundWindow` permission in all instances.
+  //
+  // We can not rely on granting this permission to the process created above
+  // because remote server clients do not meet the criteria to receive
+  // `SetForegroundWindow` permissions without unsupported hacks.
+  if (!pid) {
+    LOG_ERROR_MESSAGE(
+        L"`pid` received from pipe was 0, no process to grant "
+        L"`SetForegroundWindow` permission to");
+    return FALSE;
+  }
+  // When this call succeeds, the COM process loses the `SetForegroundWindow`
+  // permission.
+  if (!AllowSetForegroundWindow(pid)) {
+    LOG_ERROR_MESSAGE(
+        L"Failed to grant `SetForegroundWindow` permission, error %lu",
+        GetLastError());
+    return FALSE;
+  }
+
+  return TRUE;
+}
diff --git a/toolkit/mozapps/notificationserver/NotificationCallback.h b/toolkit/mozapps/notificationserver/NotificationCallback.h
new file mode 100644
index 0000000000..3fcb50a812
--- /dev/null
+++ b/toolkit/mozapps/notificationserver/NotificationCallback.h
@@ -0,0 +1,72 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=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/. */
+
+#ifndef NotificationCallback_h__
+#define NotificationCallback_h__
+
+#include <filesystem>
+#include <tuple>
+#include <unknwn.h>
+#include <wrl.h>
+
+#include "mozilla/Maybe.h"
+#include "nsWindowsHelpers.h"
+
+using namespace Microsoft::WRL;
+using namespace std::filesystem;
+
+// Windows 10+ declarations.
+// TODO remove declarations and add `#include
+// <notificationactivationcallback.h>` when Windows 10 is the minimum supported.
+typedef struct NOTIFICATION_USER_INPUT_DATA {
+  LPCWSTR Key;
+  LPCWSTR Value;
+} NOTIFICATION_USER_INPUT_DATA;
+
+MIDL_INTERFACE("53E31837-6600-4A81-9395-75CFFE746F94")
+INotificationActivationCallback : public IUnknown {
+ public:
+  virtual HRESULT STDMETHODCALLTYPE Activate(
+      LPCWSTR appUserModelId, LPCWSTR invokedArgs,
+      const NOTIFICATION_USER_INPUT_DATA* data, ULONG count) = 0;
+};
+
+struct ToastArgs {
+  std::wstring profile;
+  std::wstring windowsTag;
+};
+
+class NotificationCallback final
+    : public RuntimeClass<RuntimeClassFlags<ClassicCom>,
+                          INotificationActivationCallback> {
+ public:
+  HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject) final;
+
+  HRESULT STDMETHODCALLTYPE Activate(LPCWSTR appUserModelId,
+                                     LPCWSTR invokedArgs,
+                                     const NOTIFICATION_USER_INPUT_DATA* data,
+                                     ULONG dataCount) final;
+
+  explicit NotificationCallback(const GUID& runtimeGuid,
+                                const path& dllInstallDir)
+      : guid(runtimeGuid), installDir(dllInstallDir) {}
+
+ private:
+  const GUID guid = {};
+  const path installDir = {};
+
+  void HandleActivation(LPCWSTR invokedArgs);
+  mozilla::Maybe<ToastArgs> ParseToastArguments(LPCWSTR invokedArgs);
+  std::tuple<path, mozilla::UniquePtr<wchar_t[]>> BuildRunCommand(
+      const ToastArgs& args);
+
+  static mozilla::Maybe<nsAutoHandle> CreatePipe(const std::wstring& tag);
+  static bool ConnectPipeWithTimeout(const nsAutoHandle& pipe);
+  static void HandlePipeMessages(const nsAutoHandle& pipe);
+  static DWORD TransferForegroundPermission(const DWORD pid);
+};
+
+#endif
diff --git a/toolkit/mozapps/notificationserver/NotificationComServer.cpp b/toolkit/mozapps/notificationserver/NotificationComServer.cpp
new file mode 100644
index 0000000000..184b55be44
--- /dev/null
+++ b/toolkit/mozapps/notificationserver/NotificationComServer.cpp
@@ -0,0 +1,132 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=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 <filesystem>
+#include <string>
+
+#include "mozilla/WinHeaderOnlyUtils.h"
+
+#include "NotificationFactory.h"
+
+using namespace std::filesystem;
+
+static path processDllPath = {};
+
+// Populate the path to this DLL.
+bool PopulateDllPath(HINSTANCE dllInstance) {
+  std::vector<wchar_t> path(MAX_PATH, 0);
+  DWORD charsWritten =
+      GetModuleFileNameW(dllInstance, path.data(), path.size());
+
+  // GetModuleFileNameW returns the count of characters written including null
+  // when truncated, excluding null otherwise. Therefore the count will always
+  // be less than the buffer size when not truncated.
+  while (charsWritten == path.size()) {
+    path.resize(path.size() * 2, 0);
+    charsWritten = GetModuleFileNameW(dllInstance, path.data(), path.size());
+  }
+
+  if (charsWritten == 0) {
+    return false;
+  }
+
+  processDllPath = path.data();
+  return true;
+}
+
+// Our activator's CLSID is generated once either during install or at runtime
+// by the application generating the notification so that notifications work
+// with parallel installs and portable/development builds. When a COM object is
+// requested we verify the CLSID's InprocServer registry entry matches this
+// DLL's path.
+bool CheckRuntimeClsid(REFCLSID rclsid) {
+  // MSIX Notification COM Server registration is isolated to the package and is
+  // identical across installs/channels.
+  if (mozilla::HasPackageIdentity()) {
+    // Keep synchronized with `python\mozbuild\mozbuild\repackaging\msix.py`.
+    constexpr CLSID MOZ_INOTIFICATIONACTIVATION_CLSID = {
+        0x916f9b5d,
+        0xb5b2,
+        0x4d36,
+        {0xb0, 0x47, 0x03, 0xc7, 0xa5, 0x2f, 0x81, 0xc8}};
+
+    return IsEqualCLSID(rclsid, MOZ_INOTIFICATIONACTIVATION_CLSID);
+  }
+
+  std::wstring clsid_str;
+  {
+    wchar_t* raw_clsid_str;
+    if (SUCCEEDED(StringFromCLSID(rclsid, &raw_clsid_str))) {
+      clsid_str += raw_clsid_str;
+      CoTaskMemFree(raw_clsid_str);
+    } else {
+      return false;
+    }
+  }
+
+  std::wstring key = L"CLSID\\";
+  key += clsid_str;
+  key += L"\\InprocServer32";
+
+  DWORD bufferLen = 0;
+  LSTATUS status = RegGetValueW(HKEY_CLASSES_ROOT, key.c_str(), L"",
+                                RRF_RT_REG_SZ, nullptr, nullptr, &bufferLen);
+  if (status != ERROR_SUCCESS) {
+    return false;
+  }
+
+  std::vector<wchar_t> clsidDllPathBuffer(bufferLen / sizeof(wchar_t));
+  // Sanity assignment in case the buffer length found was not an integer
+  // multiple of `sizeof(wchar_t)`.
+  bufferLen = clsidDllPathBuffer.size() * sizeof(wchar_t);
+
+  status = RegGetValueW(HKEY_CLASSES_ROOT, key.c_str(), L"", RRF_RT_REG_SZ,
+                        nullptr, clsidDllPathBuffer.data(), &bufferLen);
+  if (status != ERROR_SUCCESS) {
+    return false;
+  }
+
+  path clsidDllPath = clsidDllPathBuffer.data();
+  return equivalent(processDllPath, clsidDllPath);
+}
+
+extern "C" {
+HRESULT STDMETHODCALLTYPE DllGetClassObject(REFCLSID rclsid, REFIID riid,
+                                            LPVOID* ppv) {
+  if (!ppv) {
+    return E_INVALIDARG;
+  }
+  *ppv = nullptr;
+
+  if (!CheckRuntimeClsid(rclsid)) {
+    return CLASS_E_CLASSNOTAVAILABLE;
+  }
+
+  using namespace Microsoft::WRL;
+  ComPtr<NotificationFactory> factory =
+      Make<NotificationFactory, const GUID&, const path&>(
+          rclsid, processDllPath.parent_path());
+
+  switch (factory->QueryInterface(riid, ppv)) {
+    case S_OK:
+      return S_OK;
+    case E_NOINTERFACE:
+      return CLASS_E_CLASSNOTAVAILABLE;
+    default:
+      return E_UNEXPECTED;
+  }
+}
+
+BOOL STDMETHODCALLTYPE DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
+                               LPVOID lpReserved) {
+  if (fdwReason == DLL_PROCESS_ATTACH) {
+    if (!PopulateDllPath(hinstDLL)) {
+      return FALSE;
+    }
+  }
+  return TRUE;
+}
+}
diff --git a/toolkit/mozapps/notificationserver/NotificationFactory.cpp b/toolkit/mozapps/notificationserver/NotificationFactory.cpp
new file mode 100644
index 0000000000..a1043f17b9
--- /dev/null
+++ b/toolkit/mozapps/notificationserver/NotificationFactory.cpp
@@ -0,0 +1,33 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=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 "NotificationFactory.h"
+
+HRESULT STDMETHODCALLTYPE NotificationFactory::CreateInstance(
+    IUnknown* pUnkOuter, REFIID riid, void** ppvObject) {
+  if (pUnkOuter != nullptr) {
+    return CLASS_E_NOAGGREGATION;
+  }
+
+  if (!ppvObject) {
+    return E_INVALIDARG;
+  }
+  *ppvObject = nullptr;
+
+  using namespace Microsoft::WRL;
+  ComPtr<NotificationCallback> callback =
+      Make<NotificationCallback, const GUID&, const path&>(notificationGuid,
+                                                           installDir);
+
+  switch (callback->QueryInterface(riid, ppvObject)) {
+    case S_OK:
+      return S_OK;
+    case E_NOINTERFACE:
+      return E_NOINTERFACE;
+    default:
+      return E_UNEXPECTED;
+  }
+}
diff --git a/toolkit/mozapps/notificationserver/NotificationFactory.h b/toolkit/mozapps/notificationserver/NotificationFactory.h
new file mode 100644
index 0000000000..0936b1ffeb
--- /dev/null
+++ b/toolkit/mozapps/notificationserver/NotificationFactory.h
@@ -0,0 +1,31 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=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/. */
+
+#ifndef NotificationFactory_h__
+#define NotificationFactory_h__
+
+#include <filesystem>
+
+#include "NotificationCallback.h"
+
+using namespace std::filesystem;
+using namespace Microsoft::WRL;
+
+class NotificationFactory final : public ClassFactory<> {
+ public:
+  HRESULT STDMETHODCALLTYPE CreateInstance(IUnknown* pUnkOuter, REFIID riid,
+                                           void** ppvObject) final;
+
+  explicit NotificationFactory(const GUID& runtimeGuid,
+                               const path& dllInstallDir)
+      : notificationGuid(runtimeGuid), installDir(dllInstallDir) {}
+
+ private:
+  const GUID notificationGuid = {};
+  const path installDir = {};
+};
+
+#endif
diff --git a/toolkit/mozapps/notificationserver/moz.build b/toolkit/mozapps/notificationserver/moz.build
new file mode 100644
index 0000000000..16e8d50f9f
--- /dev/null
+++ b/toolkit/mozapps/notificationserver/moz.build
@@ -0,0 +1,33 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# 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/.
+
+with Files("**"):
+    BUG_COMPONENT = ("Toolkit", "Notifications and Alerts")
+
+SharedLibrary("notificationserver")
+
+UNIFIED_SOURCES = [
+    "/mfbt/Poison.cpp",  # Necessary for global poison definitions.
+    "NotificationCallback.cpp",
+    "NotificationComServer.cpp",
+    "NotificationFactory.cpp",
+]
+
+DEFFILE = "notificationserver.def"
+
+DEFINES["MOZ_APP_NAME"] = '"%s"' % CONFIG["MOZ_APP_NAME"]
+DEFINES["MOZ_APP_DISPLAYNAME"] = '"%s"' % CONFIG["MOZ_APP_DISPLAYNAME"]
+
+DEFINES["IMPL_MFBT"] = True
+
+OS_LIBS += [
+    "advapi32",
+    "kernel32",
+    "user32",
+]
+
+LIBRARY_DEFINES["MOZ_NO_MOZALLOC"] = True
+DisableStlWrapping()
diff --git a/toolkit/mozapps/notificationserver/notificationserver.def b/toolkit/mozapps/notificationserver/notificationserver.def
new file mode 100644
index 0000000000..694d5609e3
--- /dev/null
+++ b/toolkit/mozapps/notificationserver/notificationserver.def
@@ -0,0 +1,6 @@
+;+# 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/.
+
+LIBRARY       notificationserver.dll
+EXPORTS       DllGetClassObject           PRIVATE