uriloader/exthandler/nsDBusHandlerApp.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim:expandtab:shiftwidth=2:tabstop=2:cin:
   3  * This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include <dbus/dbus.h>
   8 #include "mozilla/Components.h"
   9 #include "mozilla/DBusHelpers.h"
  10 #include "nsDBusHandlerApp.h"
  11 #include "nsIURI.h"
  12 #include "nsIClassInfoImpl.h"
  13 #include "nsCOMPtr.h"
  14 #include "nsCExternalHandlerService.h"
  15
  16 using namespace mozilla;
  17
  18 // XXX why does nsMIMEInfoImpl have a threadsafe nsISupports?  do we need one
  19 // here too?
  20 NS_IMPL_CLASSINFO(nsDBusHandlerApp, nullptr, 0,
  21                   components::DBusHandlerApp::CID())
  22 NS_IMPL_ISUPPORTS_CI(nsDBusHandlerApp, nsIDBusHandlerApp, nsIHandlerApp)
  23
  24 ////////////////////////////////////////////////////////////////////////////////
  25 //// nsIHandlerApp
  26
  27 NS_IMETHODIMP nsDBusHandlerApp::GetName(nsAString& aName) {
  28   aName.Assign(mName);
  29   return NS_OK;
  30 }
  31
  32 NS_IMETHODIMP nsDBusHandlerApp::SetName(const nsAString& aName) {
  33   mName.Assign(aName);
  34   return NS_OK;
  35 }
  36
  37 NS_IMETHODIMP nsDBusHandlerApp::SetDetailedDescription(
  38     const nsAString& aDescription) {
  39   mDetailedDescription.Assign(aDescription);
  40
  41   return NS_OK;
  42 }
  43
  44 NS_IMETHODIMP nsDBusHandlerApp::GetDetailedDescription(
  45     nsAString& aDescription) {
  46   aDescription.Assign(mDetailedDescription);
  47
  48   return NS_OK;
  49 }
  50
  51 NS_IMETHODIMP
  52 nsDBusHandlerApp::Equals(nsIHandlerApp* aHandlerApp, bool* _retval) {
  53   NS_ENSURE_ARG_POINTER(aHandlerApp);
  54
  55   // If the handler app isn't a dbus handler app, then it's not the same app.
  56   nsCOMPtr<nsIDBusHandlerApp> dbusHandlerApp = do_QueryInterface(aHandlerApp);
  57   if (!dbusHandlerApp) {
  58     *_retval = false;
  59     return NS_OK;
  60   }
  61   nsAutoCString service;
  62   nsAutoCString method;
  63
  64   nsresult rv = dbusHandlerApp->GetService(service);
  65   if (NS_FAILED(rv)) {
  66     *_retval = false;
  67     return NS_OK;
  68   }
  69   rv = dbusHandlerApp->GetMethod(method);
  70   if (NS_FAILED(rv)) {
  71     *_retval = false;
  72     return NS_OK;
  73   }
  74
  75   *_retval = service.Equals(mService) && method.Equals(mMethod);
  76   return NS_OK;
  77 }
  78
  79 NS_IMETHODIMP
  80 nsDBusHandlerApp::LaunchWithURI(
  81     nsIURI* aURI, mozilla::dom::BrowsingContext* aBrowsingContext) {
  82   nsAutoCString spec;
  83   nsresult rv = aURI->GetAsciiSpec(spec);
  84   NS_ENSURE_SUCCESS(rv, rv);
  85   const char* uri = spec.get();
  86
  87   DBusError err;
  88   dbus_error_init(&err);
  89
  90   mozilla::UniquePtr<DBusConnection, mozilla::DBusConnectionDelete> connection(
  91       dbus_bus_get_private(DBUS_BUS_SESSION, &err));
  92
  93   if (dbus_error_is_set(&err)) {
  94     dbus_error_free(&err);
  95     return NS_ERROR_FAILURE;
  96   }
  97   if (nullptr == connection) {
  98     return NS_ERROR_FAILURE;
  99   }
 100   dbus_connection_set_exit_on_disconnect(connection.get(), false);
 101
 102   RefPtr<DBusMessage> msg =
 103       already_AddRefed<DBusMessage>(dbus_message_new_method_call(
 104           mService.get(), mObjpath.get(), mInterface.get(), mMethod.get()));
 105
 106   if (!msg) {
 107     return NS_ERROR_FAILURE;
 108   }
 109   dbus_message_set_no_reply(msg, true);
 110
 111   DBusMessageIter iter;
 112   dbus_message_iter_init_append(msg, &iter);
 113   dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &uri);
 114
 115   if (dbus_connection_send(connection.get(), msg, nullptr)) {
 116     dbus_connection_flush(connection.get());
 117   } else {
 118     return NS_ERROR_FAILURE;
 119   }
 120   return NS_OK;
 121 }
 122
 123 ////////////////////////////////////////////////////////////////////////////////
 124 //// nsIDBusHandlerApp
 125
 126 NS_IMETHODIMP nsDBusHandlerApp::GetService(nsACString& aService) {
 127   aService.Assign(mService);
 128   return NS_OK;
 129 }
 130
 131 NS_IMETHODIMP nsDBusHandlerApp::SetService(const nsACString& aService) {
 132   mService.Assign(aService);
 133   return NS_OK;
 134 }
 135
 136 NS_IMETHODIMP nsDBusHandlerApp::GetMethod(nsACString& aMethod) {
 137   aMethod.Assign(mMethod);
 138   return NS_OK;
 139 }
 140
 141 NS_IMETHODIMP nsDBusHandlerApp::SetMethod(const nsACString& aMethod) {
 142   mMethod.Assign(aMethod);
 143   return NS_OK;
 144 }
 145
 146 NS_IMETHODIMP nsDBusHandlerApp::GetDBusInterface(nsACString& aInterface) {
 147   aInterface.Assign(mInterface);
 148   return NS_OK;
 149 }
 150
 151 NS_IMETHODIMP nsDBusHandlerApp::SetDBusInterface(const nsACString& aInterface) {
 152   mInterface.Assign(aInterface);
 153   return NS_OK;
 154 }
 155
 156 NS_IMETHODIMP nsDBusHandlerApp::GetObjectPath(nsACString& aObjpath) {
 157   aObjpath.Assign(mObjpath);
 158   return NS_OK;
 159 }
 160
 161 NS_IMETHODIMP nsDBusHandlerApp::SetObjectPath(const nsACString& aObjpath) {
 162   mObjpath.Assign(aObjpath);
 163   return NS_OK;
 164 }