Adding upstream version 110.0.1.upstream/110.0.1upstream

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

1 files changed, 926 insertions, 0 deletions

diff --git a/toolkit/system/gnome/nsGIOService.cpp b/toolkit/system/gnome/nsGIOService.cpp
new file mode 100644
index 0000000000..a744881a83
--- /dev/null
+++ b/toolkit/system/gnome/nsGIOService.cpp
@@ -0,0 +1,926 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "nsGIOService.h"
+#include "nsString.h"
+#include "nsIURI.h"
+#include "nsIFile.h"
+#include "nsTArray.h"
+#include "nsStringEnumerator.h"
+#include "nsIMIMEInfo.h"
+#include "nsComponentManagerUtils.h"
+#include "nsArray.h"
+#include "nsPrintfCString.h"
+#include "mozilla/GRefPtr.h"
+#include "mozilla/GUniquePtr.h"
+#include "mozilla/UniquePtrExtensions.h"
+#include "mozilla/WidgetUtilsGtk.h"
+#include "mozilla/StaticPrefs_widget.h"
+#include "mozilla/net/DNS.h"
+#include "prenv.h"
+
+#include <gio/gio.h>
+#include <gtk/gtk.h>
+#ifdef MOZ_ENABLE_DBUS
+#  include <fcntl.h>
+#  include <dlfcn.h>
+#  include "mozilla/widget/AsyncDBus.h"
+#  include "mozilla/WidgetUtilsGtk.h"
+#endif
+
+using namespace mozilla;
+
+class nsFlatpakHandlerApp : public nsIHandlerApp {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIHANDLERAPP
+  nsFlatpakHandlerApp() = default;
+
+ private:
+  virtual ~nsFlatpakHandlerApp() = default;
+};
+
+NS_IMPL_ISUPPORTS(nsFlatpakHandlerApp, nsIHandlerApp)
+
+NS_IMETHODIMP
+nsFlatpakHandlerApp::GetName(nsAString& aName) {
+  aName.AssignLiteral("System Handler");
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFlatpakHandlerApp::SetName(const nsAString& aName) {
+  // We don't implement SetName because flatpak system handler name is fixed
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFlatpakHandlerApp::GetDetailedDescription(nsAString& aDetailedDescription) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsFlatpakHandlerApp::SetDetailedDescription(
+    const nsAString& aDetailedDescription) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsFlatpakHandlerApp::Equals(nsIHandlerApp* aHandlerApp, bool* _retval) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsFlatpakHandlerApp::LaunchWithURI(
+    nsIURI* aUri, mozilla::dom::BrowsingContext* aBrowsingContext) {
+  nsCString spec;
+  aUri->GetSpec(spec);
+  GUniquePtr<GError> error;
+
+  // The TMPDIR where files are downloaded when user choose to open them
+  // needs to be accessible from sandbox and host. The default settings
+  // TMPDIR=/tmp is accessible only to the sandbox. That can be the reason
+  // why the gtk_show_uri fails there.
+  // The workaround is to set TMPDIR environment variable in sandbox to
+  // $XDG_CACHE_HOME/tmp before executing Firefox.
+  gtk_show_uri(nullptr, spec.get(), GDK_CURRENT_TIME, getter_Transfers(error));
+  if (error) {
+    NS_WARNING(
+        nsPrintfCString("Cannot launch flatpak handler: %s", error->message)
+            .get());
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+
+/**
+ * Get command without any additional arguments
+ * @param aCommandWithArguments full commandline input string
+ * @param aCommand string for storing command without arguments
+ * @return NS_ERROR_FAILURE when unable to parse commandline
+ */
+static nsresult GetCommandFromCommandline(
+    nsACString const& aCommandWithArguments, nsACString& aCommand) {
+  GUniquePtr<GError> error;
+  gchar** argv = nullptr;
+  if (!g_shell_parse_argv(aCommandWithArguments.BeginReading(), nullptr, &argv,
+                          getter_Transfers(error)) ||
+      !argv[0]) {
+    g_warning("Cannot parse command with arguments: %s", error->message);
+    g_strfreev(argv);
+    return NS_ERROR_FAILURE;
+  }
+  aCommand.Assign(argv[0]);
+  g_strfreev(argv);
+  return NS_OK;
+}
+
+class nsGIOMimeApp final : public nsIGIOMimeApp {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIHANDLERAPP
+  NS_DECL_NSIGIOMIMEAPP
+
+  explicit nsGIOMimeApp(already_AddRefed<GAppInfo> aApp) : mApp(aApp) {}
+
+ private:
+  ~nsGIOMimeApp() = default;
+
+  RefPtr<GAppInfo> mApp;
+};
+
+NS_IMPL_ISUPPORTS(nsGIOMimeApp, nsIGIOMimeApp, nsIHandlerApp)
+
+NS_IMETHODIMP
+nsGIOMimeApp::GetId(nsACString& aId) {
+  aId.Assign(g_app_info_get_id(mApp));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsGIOMimeApp::GetName(nsAString& aName) {
+  aName.Assign(NS_ConvertUTF8toUTF16(g_app_info_get_name(mApp)));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsGIOMimeApp::SetName(const nsAString& aName) {
+  // We don't implement SetName because we're using mGIOMimeApp instance for
+  // obtaining application name
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsGIOMimeApp::GetCommand(nsACString& aCommand) {
+  const char* cmd = g_app_info_get_commandline(mApp);
+  if (!cmd) return NS_ERROR_FAILURE;
+  aCommand.Assign(cmd);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsGIOMimeApp::GetExpectsURIs(int32_t* aExpects) {
+  *aExpects = g_app_info_supports_uris(mApp);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsGIOMimeApp::GetDetailedDescription(nsAString& aDetailedDescription) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsGIOMimeApp::SetDetailedDescription(const nsAString& aDetailedDescription) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsGIOMimeApp::Equals(nsIHandlerApp* aHandlerApp, bool* _retval) {
+  if (!aHandlerApp) return NS_ERROR_FAILURE;
+
+  // Compare with nsILocalHandlerApp instance by name
+  nsCOMPtr<nsILocalHandlerApp> localHandlerApp = do_QueryInterface(aHandlerApp);
+  if (localHandlerApp) {
+    nsAutoString theirName;
+    nsAutoString thisName;
+    GetName(thisName);
+    localHandlerApp->GetName(theirName);
+    *_retval = thisName.Equals(theirName);
+    return NS_OK;
+  }
+
+  // Compare with nsIGIOMimeApp instance by command with stripped arguments
+  nsCOMPtr<nsIGIOMimeApp> gioMimeApp = do_QueryInterface(aHandlerApp);
+  if (gioMimeApp) {
+    nsAutoCString thisCommandline, thisCommand;
+    nsresult rv = GetCommand(thisCommandline);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    rv = GetCommandFromCommandline(thisCommandline, thisCommand);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    nsAutoCString theirCommandline, theirCommand;
+    gioMimeApp->GetCommand(theirCommandline);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    rv = GetCommandFromCommandline(theirCommandline, theirCommand);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    *_retval = thisCommand.Equals(theirCommand);
+    return NS_OK;
+  }
+
+  // We can only compare with nsILocalHandlerApp and nsGIOMimeApp
+  *_retval = false;
+  return NS_OK;
+}
+
+static RefPtr<GAppLaunchContext> GetLaunchContext(
+    const char* aXDGToken = nullptr) {
+  RefPtr<GAppLaunchContext> context = dont_AddRef(g_app_launch_context_new());
+  // Unset this before launching third-party MIME handlers. Otherwise, if
+  // Thunderbird sets this in its startup script (as it does in Debian and
+  // Fedora), and Firefox does not set this in its startup script (it doesn't in
+  // Debian), then Firefox will think it is part of Thunderbird and try to make
+  // Thunderbird the default browser. See bug 1494436.
+  g_app_launch_context_unsetenv(context, "MOZ_APP_LAUNCHER");
+  if (aXDGToken) {
+    g_app_launch_context_setenv(context, "XDG_ACTIVATION_TOKEN", aXDGToken);
+  }
+  return context;
+}
+
+#ifdef __OpenBSD__
+// wrappers required for OpenBSD sandboxing with unveil()
+gboolean g_app_info_launch_uris_openbsd(GAppInfo* mApp, const char* uri,
+                                        GAppLaunchContext* context,
+                                        GError** error) {
+  gchar* path = g_filename_from_uri(uri, NULL, NULL);
+  const gchar* bin = g_app_info_get_executable(mApp);
+  if (!bin) {
+    g_warning("no executable found for %s, maybe not unveiled ?",
+              g_app_info_get_name(mApp));
+    return FALSE;
+  }
+  g_debug("spawning %s %s for %s", bin, path, uri);
+  const gchar* const argv[] = {bin, path, NULL};
+
+  GSpawnFlags flags =
+      static_cast<GSpawnFlags>(G_SPAWN_SEARCH_PATH | G_SPAWN_DO_NOT_REAP_CHILD);
+  gboolean result =
+      g_spawn_async(NULL, (char**)argv, NULL, flags, NULL, NULL, NULL, error);
+
+  if (!result) {
+    g_warning("Cannot launch application %s with arg %s: %s", bin, path,
+              (*error)->message);
+    return FALSE;
+  }
+  return TRUE;
+}
+
+gboolean g_app_info_launch_default_for_uri_openbsd(const char* uri,
+                                                   GAppLaunchContext* context,
+                                                   GError** error) {
+  gboolean result_uncertain;
+  gchar* path = g_filename_from_uri(uri, NULL, NULL);
+  gchar* content_type = g_content_type_guess(path, NULL, 0, &result_uncertain);
+  if (content_type != NULL && !result_uncertain) {
+    g_debug("content type for %s: %s", uri, content_type);
+    GAppInfo* app_info = g_app_info_get_default_for_type(content_type, false);
+    if (!app_info) {
+      g_warning("Could not find default handler for content type %s",
+                content_type);
+      g_free(content_type);
+      return FALSE;
+    } else {
+      g_free(content_type);
+      return g_app_info_launch_uris_openbsd(app_info, uri, context, error);
+    }
+  } else {
+    g_warning("Could not find content type for URI: %s", uri);
+    return FALSE;
+  }
+}
+#endif
+
+static NS_IMETHODIMP LaunchWithURIImpl(RefPtr<GAppInfo> aInfo, nsIURI* aUri,
+                                       const char* aXDGToken = nullptr) {
+  GList uris = {0};
+  nsCString spec;
+  aUri->GetSpec(spec);
+  // nsPromiseFlatCString flatUri(aUri);
+  uris.data = const_cast<char*>(spec.get());
+
+  GUniquePtr<GError> error;
+#ifdef __OpenBSD__
+  gboolean result = g_app_info_launch_uris_openbsd(
+      aInfo, spec.get(), GetLaunchContext(aXDGToken).get(),
+      getter_Transfers(error));
+#else
+  gboolean result = g_app_info_launch_uris(
+      aInfo, &uris, GetLaunchContext(aXDGToken).get(), getter_Transfers(error));
+#endif
+  if (!result) {
+    g_warning("Cannot launch application: %s", error->message);
+    return NS_ERROR_FAILURE;
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsGIOMimeApp::LaunchWithURI(nsIURI* aUri,
+                            mozilla::dom::BrowsingContext* aBrowsingContext) {
+  auto promise = mozilla::widget::RequestWaylandFocusPromise();
+  if (!promise) {
+    return LaunchWithURIImpl(mApp, aUri);
+  }
+  promise->Then(
+      GetMainThreadSerialEventTarget(), __func__,
+      /* resolve */
+      [app = RefPtr{mApp}, uri = RefPtr{aUri}](nsCString token) {
+        LaunchWithURIImpl(app, uri, token.get());
+      },
+      /* reject */
+      [app = RefPtr{mApp}, uri = RefPtr{aUri}](bool state) {
+        LaunchWithURIImpl(app, uri);
+      });
+  return NS_OK;
+}
+
+class GIOUTF8StringEnumerator final : public nsStringEnumeratorBase {
+  ~GIOUTF8StringEnumerator() = default;
+
+ public:
+  GIOUTF8StringEnumerator() : mIndex(0) {}
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIUTF8STRINGENUMERATOR
+
+  using nsStringEnumeratorBase::GetNext;
+
+  nsTArray<nsCString> mStrings;
+  uint32_t mIndex;
+};
+
+NS_IMPL_ISUPPORTS(GIOUTF8StringEnumerator, nsIUTF8StringEnumerator,
+                  nsIStringEnumerator)
+
+NS_IMETHODIMP
+GIOUTF8StringEnumerator::HasMore(bool* aResult) {
+  *aResult = mIndex < mStrings.Length();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+GIOUTF8StringEnumerator::GetNext(nsACString& aResult) {
+  if (mIndex >= mStrings.Length()) return NS_ERROR_UNEXPECTED;
+
+  aResult.Assign(mStrings[mIndex]);
+  ++mIndex;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsGIOMimeApp::GetSupportedURISchemes(nsIUTF8StringEnumerator** aSchemes) {
+  *aSchemes = nullptr;
+
+  RefPtr<GIOUTF8StringEnumerator> array = new GIOUTF8StringEnumerator();
+
+  GVfs* gvfs = g_vfs_get_default();
+
+  if (!gvfs) {
+    g_warning("Cannot get GVfs object.");
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  const gchar* const* uri_schemes = g_vfs_get_supported_uri_schemes(gvfs);
+
+  while (*uri_schemes != nullptr) {
+    // XXX(Bug 1631371) Check if this should use a fallible operation as it
+    // pretended earlier.
+    array->mStrings.AppendElement(*uri_schemes);
+    uri_schemes++;
+  }
+
+  array.forget(aSchemes);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsGIOMimeApp::SetAsDefaultForMimeType(nsACString const& aMimeType) {
+  GUniquePtr<char> content_type(
+      g_content_type_from_mime_type(PromiseFlatCString(aMimeType).get()));
+  if (!content_type) return NS_ERROR_FAILURE;
+  GUniquePtr<GError> error;
+  g_app_info_set_as_default_for_type(mApp, content_type.get(),
+                                     getter_Transfers(error));
+  if (error) {
+    g_warning("Cannot set application as default for MIME type (%s): %s",
+              PromiseFlatCString(aMimeType).get(), error->message);
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+/**
+ * Set default application for files with given extensions
+ * @param fileExts string of space separated extensions
+ * @return NS_OK when application was set as default for given extensions,
+ * NS_ERROR_FAILURE otherwise
+ */
+NS_IMETHODIMP
+nsGIOMimeApp::SetAsDefaultForFileExtensions(nsACString const& fileExts) {
+  GUniquePtr<GError> error;
+  GUniquePtr<char> extensions(g_strdup(PromiseFlatCString(fileExts).get()));
+  char* ext_pos = extensions.get();
+  char* space_pos;
+
+  while ((space_pos = strchr(ext_pos, ' ')) || (*ext_pos != '\0')) {
+    if (space_pos) {
+      *space_pos = '\0';
+    }
+    g_app_info_set_as_default_for_extension(mApp, ext_pos,
+                                            getter_Transfers(error));
+    if (error) {
+      g_warning("Cannot set application as default for extension (%s): %s",
+                ext_pos, error->message);
+      return NS_ERROR_FAILURE;
+    }
+    if (space_pos) {
+      ext_pos = space_pos + 1;
+    } else {
+      *ext_pos = '\0';
+    }
+  }
+  return NS_OK;
+}
+
+/**
+ * Set default application for URI's of a particular scheme
+ * @param aURIScheme string containing the URI scheme
+ * @return NS_OK when application was set as default for URI scheme,
+ * NS_ERROR_FAILURE otherwise
+ */
+NS_IMETHODIMP
+nsGIOMimeApp::SetAsDefaultForURIScheme(nsACString const& aURIScheme) {
+  GUniquePtr<GError> error;
+  nsAutoCString contentType("x-scheme-handler/");
+  contentType.Append(aURIScheme);
+
+  g_app_info_set_as_default_for_type(mApp, contentType.get(),
+                                     getter_Transfers(error));
+  if (error) {
+    g_warning("Cannot set application as default for URI scheme (%s): %s",
+              PromiseFlatCString(aURIScheme).get(), error->message);
+    return NS_ERROR_FAILURE;
+  }
+
+  return NS_OK;
+}
+
+NS_IMPL_ISUPPORTS(nsGIOService, nsIGIOService)
+
+NS_IMETHODIMP
+nsGIOService::GetMimeTypeFromExtension(const nsACString& aExtension,
+                                       nsACString& aMimeType) {
+  nsAutoCString fileExtToUse("file.");
+  fileExtToUse.Append(aExtension);
+
+  gboolean result_uncertain;
+  GUniquePtr<char> content_type(
+      g_content_type_guess(fileExtToUse.get(), nullptr, 0, &result_uncertain));
+  if (!content_type) {
+    return NS_ERROR_FAILURE;
+  }
+
+  GUniquePtr<char> mime_type(g_content_type_get_mime_type(content_type.get()));
+  if (!mime_type) {
+    return NS_ERROR_FAILURE;
+  }
+
+  aMimeType.Assign(mime_type.get());
+  return NS_OK;
+}
+// used in nsGNOMERegistry
+// -----------------------------------------------------------------------------
+NS_IMETHODIMP
+nsGIOService::GetAppForURIScheme(const nsACString& aURIScheme,
+                                 nsIHandlerApp** aApp) {
+  *aApp = nullptr;
+
+  // Application in flatpak sandbox does not have access to the list
+  // of installed applications on the system. We use generic
+  // nsFlatpakHandlerApp which forwards launch call to the system.
+  if (widget::ShouldUsePortal(widget::PortalKind::MimeHandler)) {
+    if (mozilla::net::IsLoopbackHostname(aURIScheme)) {
+      // When the user writes foo:1234, we try to handle it natively using
+      // GetAppForURIScheme, and if that fails, we carry on. On flatpak there's
+      // no way to know if an app has handlers or not. Some things like
+      // localhost:1234 are really unlikely to be handled by native
+      // apps, and we're much better off returning an error here instead.
+      return NS_ERROR_FAILURE;
+    }
+    RefPtr<nsFlatpakHandlerApp> mozApp = new nsFlatpakHandlerApp();
+    mozApp.forget(aApp);
+    return NS_OK;
+  }
+
+  RefPtr<GAppInfo> app_info = dont_AddRef(g_app_info_get_default_for_uri_scheme(
+      PromiseFlatCString(aURIScheme).get()));
+  if (!app_info) {
+    return NS_ERROR_FAILURE;
+  }
+  RefPtr<nsGIOMimeApp> mozApp = new nsGIOMimeApp(app_info.forget());
+  mozApp.forget(aApp);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsGIOService::GetAppsForURIScheme(const nsACString& aURIScheme,
+                                  nsIMutableArray** aResult) {
+  // We don't need to return the nsFlatpakHandlerApp here because
+  // it would be skipped by the callers anyway.
+  // The preferred handler is provided by GetAppForURIScheme.
+  // This method returns all possible application handlers
+  // including preferred one. The callers skips the preferred
+  // handler in this list to avoid duplicate records in the list
+  // they create.
+  nsCOMPtr<nsIMutableArray> handlersArray =
+      do_CreateInstance(NS_ARRAY_CONTRACTID);
+
+  nsAutoCString contentType("x-scheme-handler/");
+  contentType.Append(aURIScheme);
+
+  GList* appInfoList = g_app_info_get_all_for_type(contentType.get());
+  // g_app_info_get_all_for_type returns NULL when no appinfo is found
+  // or error occurs (contentType is NULL). We are fine with empty app list
+  // and we're sure that contentType is not NULL, so we won't return failure.
+  if (appInfoList) {
+    GList* appInfo = appInfoList;
+    while (appInfo) {
+      nsCOMPtr<nsIGIOMimeApp> mimeApp =
+          new nsGIOMimeApp(dont_AddRef(G_APP_INFO(appInfo->data)));
+      handlersArray->AppendElement(mimeApp);
+      appInfo = appInfo->next;
+    }
+    g_list_free(appInfoList);
+  }
+  handlersArray.forget(aResult);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsGIOService::GetAppForMimeType(const nsACString& aMimeType,
+                                nsIHandlerApp** aApp) {
+  *aApp = nullptr;
+
+  // Flatpak does not reveal installed application to the sandbox,
+  // we need to create generic system handler.
+  if (widget::ShouldUsePortal(widget::PortalKind::MimeHandler)) {
+    RefPtr<nsFlatpakHandlerApp> mozApp = new nsFlatpakHandlerApp();
+    mozApp.forget(aApp);
+    return NS_OK;
+  }
+
+  GUniquePtr<char> content_type(
+      g_content_type_from_mime_type(PromiseFlatCString(aMimeType).get()));
+  if (!content_type) {
+    return NS_ERROR_FAILURE;
+  }
+
+  // GIO returns "unknown" appinfo for the application/octet-stream, which is
+  // useless. It's better to fallback to create appinfo from file extension
+  // later.
+  if (g_content_type_is_unknown(content_type.get())) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  RefPtr<GAppInfo> app_info =
+      dont_AddRef(g_app_info_get_default_for_type(content_type.get(), false));
+  if (!app_info) {
+    return NS_ERROR_FAILURE;
+  }
+#ifdef __OpenBSD__
+  char* t;
+  t = g_find_program_in_path(g_app_info_get_executable(app_info));
+  if (t != nullptr) {
+    g_debug("%s is registered as handler for %s, binary available as %s",
+            g_app_info_get_executable(app_info), content_type.get(), t);
+  } else {
+    g_warning(
+        "%s is registered as handler for %s but not available in PATH "
+        "(missing unveil ?)",
+        g_app_info_get_executable(app_info), content_type.get());
+  }
+#endif
+  RefPtr<nsGIOMimeApp> mozApp = new nsGIOMimeApp(app_info.forget());
+  mozApp.forget(aApp);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsGIOService::GetDescriptionForMimeType(const nsACString& aMimeType,
+                                        nsACString& aDescription) {
+  GUniquePtr<char> content_type(
+      g_content_type_from_mime_type(PromiseFlatCString(aMimeType).get()));
+  if (!content_type) {
+    return NS_ERROR_FAILURE;
+  }
+
+  GUniquePtr<char> desc(g_content_type_get_description(content_type.get()));
+  if (!desc) {
+    return NS_ERROR_FAILURE;
+  }
+
+  aDescription.Assign(desc.get());
+  return NS_OK;
+}
+
+static nsresult ShowURIImpl(nsIURI* aURI, const char* aXDGToken = nullptr) {
+  nsAutoCString spec;
+  MOZ_TRY(aURI->GetSpec(spec));
+  GUniquePtr<GError> error;
+#ifdef __OpenBSD__
+  if (!g_app_info_launch_default_for_uri_openbsd(
+          spec.get(), GetLaunchContext(aXDGToken).get(),
+#else
+  if (!g_app_info_launch_default_for_uri(spec.get(),
+                                         GetLaunchContext(aXDGToken).get(),
+#endif
+          getter_Transfers(error))) {
+    g_warning("Could not launch default application for URI: %s",
+              error->message);
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+
+nsresult nsGIOService::ShowURI(nsIURI* aURI) {
+  auto promise = mozilla::widget::RequestWaylandFocusPromise();
+  if (!promise) {
+    return ShowURIImpl(aURI);
+  }
+  promise->Then(
+      GetMainThreadSerialEventTarget(), __func__,
+      /* resolve */
+      [uri = RefPtr{aURI}](nsCString token) { ShowURIImpl(uri, token.get()); },
+      /* reject */
+      [uri = RefPtr{aURI}](bool state) { ShowURIImpl(uri); });
+  return NS_OK;
+}
+
+static nsresult LaunchPathImpl(const nsACString& aPath,
+                               const char* aXDGToken = nullptr) {
+  RefPtr<GFile> file = dont_AddRef(
+      g_file_new_for_commandline_arg(PromiseFlatCString(aPath).get()));
+  GUniquePtr<char> spec(g_file_get_uri(file));
+  GUniquePtr<GError> error;
+#ifdef __OpenBSD__
+  g_app_info_launch_default_for_uri_openbsd(spec.get(),
+                                            GetLaunchContext(aXDGToken).get(),
+#else
+  g_app_info_launch_default_for_uri(spec.get(),
+                                    GetLaunchContext(aXDGToken).get(),
+#endif
+                                            getter_Transfers(error));
+  if (error) {
+    g_warning("Cannot launch default application: %s", error->message);
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+
+static nsresult LaunchPath(const nsACString& aPath) {
+  auto promise = mozilla::widget::RequestWaylandFocusPromise();
+  if (!promise) {
+    return LaunchPathImpl(aPath);
+  }
+  promise->Then(
+      GetMainThreadSerialEventTarget(), __func__,
+      /* resolve */
+      [path = nsCString{aPath}](nsCString token) {
+        LaunchPathImpl(path, token.get());
+      },
+      /* reject */
+      [path = nsCString{aPath}](bool state) { LaunchPathImpl(path); });
+  return NS_OK;
+}
+
+nsresult nsGIOService::LaunchFile(const nsACString& aPath) {
+  return LaunchPath(aPath);
+}
+
+static nsresult RevealDirectory(nsIFile* aFile, bool aForce) {
+  nsAutoCString path;
+  if (bool isDir; NS_SUCCEEDED(aFile->IsDirectory(&isDir)) && isDir) {
+    MOZ_TRY(aFile->GetNativePath(path));
+    return LaunchPath(path);
+  }
+
+  if (!aForce) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsCOMPtr<nsIFile> parentDir;
+  MOZ_TRY(aFile->GetParent(getter_AddRefs(parentDir)));
+  MOZ_TRY(parentDir->GetNativePath(path));
+  return LaunchPath(path);
+}
+
+#ifdef MOZ_ENABLE_DBUS
+// Classic DBus
+const char kFreedesktopFileManagerName[] = "org.freedesktop.FileManager1";
+const char kFreedesktopFileManagerPath[] = "/org/freedesktop/FileManager1";
+const char kMethodShowItems[] = "ShowItems";
+
+// Portal for Snap, Flatpak
+const char kFreedesktopPortalName[] = "org.freedesktop.portal.Desktop";
+const char kFreedesktopPortalPath[] = "/org/freedesktop/portal/desktop";
+const char kFreedesktopPortalOpenURI[] = "org.freedesktop.portal.OpenURI";
+const char kMethodOpenDirectory[] = "OpenDirectory";
+
+static nsresult RevealFileViaDBusWithProxy(GDBusProxy* aProxy, nsIFile* aFile,
+                                           const char* aMethod) {
+  nsAutoCString path;
+  MOZ_TRY(aFile->GetNativePath(path));
+
+  RefPtr<mozilla::widget::DBusCallPromise> dbusPromise;
+  const char* startupId = "";
+
+  const int32_t timeout =
+      StaticPrefs::widget_gtk_file_manager_show_items_timeout_ms();
+
+  if (!(strcmp(aMethod, kMethodOpenDirectory) == 0)) {
+    GUniquePtr<gchar> uri(g_filename_to_uri(path.get(), nullptr, nullptr));
+    if (!uri) {
+      RevealDirectory(aFile, /* aForce = */ true);
+      return NS_ERROR_FAILURE;
+    }
+
+    GVariantBuilder builder;
+    g_variant_builder_init(&builder, G_VARIANT_TYPE_STRING_ARRAY);
+    g_variant_builder_add(&builder, "s", uri.get());
+
+    RefPtr<GVariant> variant = dont_AddRef(
+        g_variant_ref_sink(g_variant_new("(ass)", &builder, startupId)));
+    g_variant_builder_clear(&builder);
+
+    dbusPromise = widget::DBusProxyCall(aProxy, aMethod, variant,
+                                        G_DBUS_CALL_FLAGS_NONE, timeout);
+  } else {
+    int fd = open(path.get(), O_RDONLY | O_CLOEXEC);
+    if (fd < 0) {
+      g_printerr("Failed to open file: %s returned %d\n", path.get(), errno);
+      RevealDirectory(aFile, /* aForce = */ true);
+      return NS_ERROR_FAILURE;
+    }
+
+    GVariantBuilder options;
+    g_variant_builder_init(&options, G_VARIANT_TYPE_VARDICT);
+
+    static auto g_unix_fd_list_new_from_array =
+        (GUnixFDList * (*)(const gint* fds, gint n_fds))
+            dlsym(RTLD_DEFAULT, "g_unix_fd_list_new_from_array");
+
+    // Will take ownership of the fd, so we dont have to care about it anymore
+    RefPtr<GUnixFDList> fd_list =
+        dont_AddRef(g_unix_fd_list_new_from_array(&fd, 1));
+
+    RefPtr<GVariant> variant = dont_AddRef(
+        g_variant_ref_sink(g_variant_new("(sha{sv})", startupId, 0, &options)));
+    g_variant_builder_clear(&options);
+
+    dbusPromise = widget::DBusProxyCallWithUnixFDList(
+        aProxy, aMethod, variant, G_DBUS_CALL_FLAGS_NONE, timeout, fd_list);
+  }
+
+  dbusPromise->Then(
+      GetCurrentSerialEventTarget(), __func__,
+      [](RefPtr<GVariant>&& aResult) {
+        // Do nothing, file is shown, we're done.
+      },
+      [file = RefPtr{aFile}, aMethod](GUniquePtr<GError>&& aError) {
+        g_printerr("Failed to query file manager via %s: %s\n", aMethod,
+                   aError->message);
+        RevealDirectory(file, /* aForce = */ true);
+      });
+  return NS_OK;
+}
+
+static void RevealFileViaDBus(nsIFile* aFile, const char* aName,
+                              const char* aPath, const char* aCall,
+                              const char* aMethod) {
+  widget::CreateDBusProxyForBus(
+      G_BUS_TYPE_SESSION,
+      GDBusProxyFlags(G_DBUS_PROXY_FLAGS_DO_NOT_CONNECT_SIGNALS |
+                      G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES),
+      /* aInterfaceInfo = */ nullptr, aName, aPath, aCall)
+      ->Then(
+          GetCurrentSerialEventTarget(), __func__,
+          [file = RefPtr{aFile}, aMethod](RefPtr<GDBusProxy>&& aProxy) {
+            RevealFileViaDBusWithProxy(aProxy.get(), file, aMethod);
+          },
+          [file = RefPtr{aFile}, aName](GUniquePtr<GError>&& aError) {
+            g_printerr("Failed to create DBUS proxy for %s: %s\n", aName,
+                       aError->message);
+            RevealDirectory(file, /* aForce = */ true);
+          });
+}
+
+static void RevealFileViaDBusClassic(nsIFile* aFile) {
+  RevealFileViaDBus(aFile, kFreedesktopFileManagerName,
+                    kFreedesktopFileManagerPath, kFreedesktopFileManagerName,
+                    kMethodShowItems);
+}
+
+static void RevealFileViaDBusPortal(nsIFile* aFile) {
+  RevealFileViaDBus(aFile, kFreedesktopPortalName, kFreedesktopPortalPath,
+                    kFreedesktopPortalOpenURI, kMethodOpenDirectory);
+}
+#endif
+
+nsresult nsGIOService::RevealFile(nsIFile* aFile) {
+#ifdef MOZ_ENABLE_DBUS
+  if (NS_SUCCEEDED(RevealDirectory(aFile, /* aForce = */ false))) {
+    return NS_OK;
+  }
+  if (ShouldUsePortal(widget::PortalKind::OpenUri)) {
+    RevealFileViaDBusPortal(aFile);
+  } else {
+    RevealFileViaDBusClassic(aFile);
+  }
+  return NS_OK;
+#else
+  return RevealDirectory(aFile, /* aForce = */ true);
+#endif
+}
+
+/**
+ * Find GIO Mime App from given commandline.
+ * This is different from CreateAppFromCommand because instead of creating the
+ * GIO Mime App in case it's not found in the GIO application list, the method
+ * returns error.
+ * @param aCmd command with parameters used to start the application
+ * @return NS_OK when application is found, NS_ERROR_NOT_AVAILABLE otherwise
+ */
+NS_IMETHODIMP
+nsGIOService::FindAppFromCommand(nsACString const& aCmd,
+                                 nsIGIOMimeApp** aAppInfo) {
+  RefPtr<GAppInfo> app_info;
+
+  GList* apps = g_app_info_get_all();
+
+  // Try to find relevant and existing GAppInfo in all installed application
+  // We do this by comparing each GAppInfo's executable with out own
+  for (GList* node = apps; node; node = node->next) {
+    RefPtr<GAppInfo> app_info_from_list = dont_AddRef((GAppInfo*)node->data);
+    node->data = nullptr;
+    if (!app_info) {
+      // If the executable is not absolute, get it's full path
+      GUniquePtr<char> executable(g_find_program_in_path(
+          g_app_info_get_executable(app_info_from_list)));
+
+      if (executable &&
+          strcmp(executable.get(), PromiseFlatCString(aCmd).get()) == 0) {
+        app_info = std::move(app_info_from_list);
+        // Can't break here because we need to keep iterating to unref the other
+        // nodes.
+      }
+    }
+  }
+
+  g_list_free(apps);
+  if (!app_info) {
+    *aAppInfo = nullptr;
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  RefPtr<nsGIOMimeApp> app = new nsGIOMimeApp(app_info.forget());
+  app.forget(aAppInfo);
+  return NS_OK;
+}
+
+/**
+ * Create application info for specified command and application name.
+ * Command arguments are ignored and the "%u" is always added.
+ * @param cmd command to execute
+ * @param appName application name
+ * @param appInfo location where created GAppInfo is stored
+ * @return NS_OK when object is created, NS_ERROR_FILE_NOT_FOUND when executable
+ * is not found in the system path or NS_ERROR_FAILURE otherwise.
+ */
+NS_IMETHODIMP
+nsGIOService::CreateAppFromCommand(nsACString const& cmd,
+                                   nsACString const& appName,
+                                   nsIGIOMimeApp** appInfo) {
+  *appInfo = nullptr;
+
+  // Using G_APP_INFO_CREATE_SUPPORTS_URIS calling
+  // g_app_info_create_from_commandline appends %u to the cmd even when cmd
+  // already contains this parameter. To avoid that we're going to remove
+  // arguments before passing to it.
+  nsAutoCString commandWithoutArgs;
+  nsresult rv = GetCommandFromCommandline(cmd, commandWithoutArgs);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  GUniquePtr<GError> error;
+  RefPtr<GAppInfo> app_info = dont_AddRef(g_app_info_create_from_commandline(
+      commandWithoutArgs.BeginReading(), PromiseFlatCString(appName).get(),
+      G_APP_INFO_CREATE_SUPPORTS_URIS, getter_Transfers(error)));
+  if (!app_info) {
+    g_warning("Cannot create application info from command: %s",
+              error->message);
+    return NS_ERROR_FAILURE;
+  }
+
+  // Check if executable exist in path
+  GUniquePtr<gchar> executableWithFullPath(
+      g_find_program_in_path(commandWithoutArgs.BeginReading()));
+  if (!executableWithFullPath) {
+    return NS_ERROR_FILE_NOT_FOUND;
+  }
+  RefPtr<nsGIOMimeApp> mozApp = new nsGIOMimeApp(app_info.forget());
+  mozApp.forget(appInfo);
+  return NS_OK;
+}