Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

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

1 files changed, 214 insertions, 0 deletions

diff --git a/toolkit/components/remote/nsDBusRemoteServer.cpp b/toolkit/components/remote/nsDBusRemoteServer.cpp
new file mode 100644
index 0000000000..34167177d9
--- /dev/null
+++ b/toolkit/components/remote/nsDBusRemoteServer.cpp
@@ -0,0 +1,214 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:expandtab:shiftwidth=2:tabstop=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 "nsDBusRemoteServer.h"
+
+#include "nsCOMPtr.h"
+#include "mozilla/XREAppData.h"
+#include "mozilla/Base64.h"
+#include "mozilla/ScopeExit.h"
+#include "nsPrintfCString.h"
+
+#include "nsGTKToolkit.h"
+
+#include <dbus/dbus.h>
+#include <dbus/dbus-glib-lowlevel.h>
+
+#include <dlfcn.h>
+
+static const char* introspect_template =
+    "<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection "
+    "1.0//EN\"\n"
+    "\"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n"
+    "<node>\n"
+    " <interface name=\"org.freedesktop.DBus.Introspectable\">\n"
+    "   <method name=\"Introspect\">\n"
+    "     <arg name=\"data\" direction=\"out\" type=\"s\"/>\n"
+    "   </method>\n"
+    " </interface>\n"
+    " <interface name=\"org.mozilla.%s\">\n"
+    "   <method name=\"OpenURL\">\n"
+    "     <arg name=\"url\" direction=\"in\" type=\"ay\"/>\n"
+    "   </method>\n"
+    " </interface>\n"
+    "</node>\n";
+
+DBusHandlerResult nsDBusRemoteServer::Introspect(DBusMessage* msg) {
+  DBusMessage* reply = dbus_message_new_method_return(msg);
+  if (!reply) return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
+  nsAutoCString introspect_xml;
+  introspect_xml = nsPrintfCString(introspect_template, mAppName.get());
+
+  const char* message = introspect_xml.get();
+  dbus_message_append_args(reply, DBUS_TYPE_STRING, &message,
+                           DBUS_TYPE_INVALID);
+
+  dbus_connection_send(mConnection, reply, nullptr);
+  dbus_message_unref(reply);
+
+  return DBUS_HANDLER_RESULT_HANDLED;
+}
+
+DBusHandlerResult nsDBusRemoteServer::OpenURL(DBusMessage* msg) {
+  DBusMessage* reply = nullptr;
+  const char* commandLine;
+  int length;
+
+  if (!dbus_message_get_args(msg, nullptr, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE,
+                             &commandLine, &length, DBUS_TYPE_INVALID) ||
+      length == 0) {
+    nsAutoCString errorMsg;
+    errorMsg = nsPrintfCString("org.mozilla.%s.Error", mAppName.get());
+    reply = dbus_message_new_error(msg, errorMsg.get(), "Wrong argument");
+  } else {
+    guint32 timestamp = gtk_get_current_event_time();
+    if (timestamp == GDK_CURRENT_TIME) {
+      timestamp = guint32(g_get_monotonic_time() / 1000);
+    }
+    HandleCommandLine(commandLine, timestamp);
+    reply = dbus_message_new_method_return(msg);
+  }
+
+  dbus_connection_send(mConnection, reply, nullptr);
+  dbus_message_unref(reply);
+
+  return DBUS_HANDLER_RESULT_HANDLED;
+}
+
+DBusHandlerResult nsDBusRemoteServer::HandleDBusMessage(
+    DBusConnection* aConnection, DBusMessage* msg) {
+  NS_ASSERTION(mConnection == aConnection, "Wrong D-Bus connection.");
+
+  const char* method = dbus_message_get_member(msg);
+  const char* iface = dbus_message_get_interface(msg);
+
+  if ((strcmp("Introspect", method) == 0) &&
+      (strcmp("org.freedesktop.DBus.Introspectable", iface) == 0)) {
+    return Introspect(msg);
+  }
+
+  nsAutoCString ourInterfaceName;
+  ourInterfaceName = nsPrintfCString("org.mozilla.%s", mAppName.get());
+
+  if ((strcmp("OpenURL", method) == 0) &&
+      (strcmp(ourInterfaceName.get(), iface) == 0)) {
+    return OpenURL(msg);
+  }
+
+  return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+
+void nsDBusRemoteServer::UnregisterDBusInterface(DBusConnection* aConnection) {
+  NS_ASSERTION(mConnection == aConnection, "Wrong D-Bus connection.");
+  // Not implemented
+}
+
+static DBusHandlerResult message_handler(DBusConnection* conn, DBusMessage* msg,
+                                         void* user_data) {
+  auto interface = static_cast<nsDBusRemoteServer*>(user_data);
+  return interface->HandleDBusMessage(conn, msg);
+}
+
+static void unregister(DBusConnection* conn, void* user_data) {
+  auto interface = static_cast<nsDBusRemoteServer*>(user_data);
+  interface->UnregisterDBusInterface(conn);
+}
+
+static DBusObjectPathVTable remoteHandlersTable = {
+    .unregister_function = unregister,
+    .message_function = message_handler,
+};
+
+nsresult nsDBusRemoteServer::Startup(const char* aAppName,
+                                     const char* aProfileName) {
+  if (mConnection && dbus_connection_get_is_connected(mConnection)) {
+    // We're already connected so we don't need to reconnect
+    return NS_ERROR_ALREADY_INITIALIZED;
+  }
+
+  // Don't even try to start without any application/profile name
+  if (!aAppName || aAppName[0] == '\0' || !aProfileName ||
+      aProfileName[0] == '\0')
+    return NS_ERROR_INVALID_ARG;
+
+  mConnection = dont_AddRef(dbus_bus_get(DBUS_BUS_SESSION, nullptr));
+  if (!mConnection) {
+    return NS_ERROR_FAILURE;
+  }
+  auto releaseDBusConnection =
+      mozilla::MakeScopeExit([&] { mConnection = nullptr; });
+  dbus_connection_set_exit_on_disconnect(mConnection, false);
+  dbus_connection_setup_with_g_main(mConnection, nullptr);
+
+  mAppName = aAppName;
+  mozilla::XREAppData::SanitizeNameForDBus(mAppName);
+
+  nsAutoCString profileName;
+  MOZ_TRY(
+      mozilla::Base64Encode(aProfileName, strlen(aProfileName), profileName));
+
+  mozilla::XREAppData::SanitizeNameForDBus(profileName);
+
+  nsPrintfCString busName("org.mozilla.%s.%s", mAppName.get(),
+                          profileName.get());
+  if (busName.Length() > DBUS_MAXIMUM_NAME_LENGTH)
+    busName.Truncate(DBUS_MAXIMUM_NAME_LENGTH);
+
+  static auto sDBusValidateBusName = (bool (*)(const char*, DBusError*))dlsym(
+      RTLD_DEFAULT, "dbus_validate_bus_name");
+  if (!sDBusValidateBusName) {
+    return NS_ERROR_FAILURE;
+  }
+
+  // We don't have a valid busName yet - try to create a default one.
+  if (!sDBusValidateBusName(busName.get(), nullptr)) {
+    busName = nsPrintfCString("org.mozilla.%s.%s", mAppName.get(), "default");
+    if (!sDBusValidateBusName(busName.get(), nullptr)) {
+      // We failed completelly to get a valid bus name - just quit
+      // to prevent crash at dbus_bus_request_name().
+      return NS_ERROR_FAILURE;
+    }
+  }
+
+  DBusError err;
+  dbus_error_init(&err);
+  dbus_bus_request_name(mConnection, busName.get(), DBUS_NAME_FLAG_DO_NOT_QUEUE,
+                        &err);
+  // The interface is already owned - there is another application/profile
+  // instance already running.
+  if (dbus_error_is_set(&err)) {
+    dbus_error_free(&err);
+    return NS_ERROR_FAILURE;
+  }
+
+  mPathName = nsPrintfCString("/org/mozilla/%s/Remote", mAppName.get());
+  static auto sDBusValidatePathName = (bool (*)(const char*, DBusError*))dlsym(
+      RTLD_DEFAULT, "dbus_validate_path");
+  if (!sDBusValidatePathName ||
+      !sDBusValidatePathName(mPathName.get(), nullptr)) {
+    return NS_ERROR_FAILURE;
+  }
+  if (!dbus_connection_register_object_path(mConnection, mPathName.get(),
+                                            &remoteHandlersTable, this)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  releaseDBusConnection.release();
+  return NS_OK;
+}
+
+void nsDBusRemoteServer::Shutdown() {
+  if (!mConnection) {
+    return;
+  }
+
+  dbus_connection_unregister_object_path(mConnection, mPathName.get());
+
+  // dbus_connection_unref() will be called by RefPtr here.
+  mConnection = nullptr;
+}