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backends: Make uniform checks on remote desktop input dbus methods
They all checked that the remote session service talked with the
correct peer, and some of them did check that there is an associated
screencast session.
Add a new check for the session being started (as it's state is
decoupled with screencast session availability) and move all checks
to a function that is called from all input-oriented DBus methods.
Fixes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1254
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1258
(cherry picked from commit c8837a8de5)
This commit is contained in:
Carlos Garnacho
Jonas Ådahl
parent
fadfca2e16
commit
3daf912449
@ -253,6 +253,37 @@ check_permission (MetaRemoteDesktopSession *session,
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g_dbus_method_invocation_get_sender (invocation)) == 0;
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}
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static gboolean
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meta_remote_desktop_session_check_can_notify (MetaRemoteDesktopSession *session,
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GDBusMethodInvocation *invocation)
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{
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if (!session->started)
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_FAILED,
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"Session not started");
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return FALSE;
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}
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if (!check_permission (session, invocation))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Permission denied");
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return FALSE;
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}
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if (!session->screen_cast_session)
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_FAILED,
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"No screen cast active");
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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handle_start (MetaDBusRemoteDesktopSession *skeleton,
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GDBusMethodInvocation *invocation)
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@ -332,13 +363,8 @@ handle_notify_keyboard_keycode (MetaDBusRemoteDesktopSession *skeleton,
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MetaRemoteDesktopSession *session = META_REMOTE_DESKTOP_SESSION (skeleton);
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ClutterKeyState state;
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if (!check_permission (session, invocation))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Permission denied");
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return TRUE;
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}
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if (!meta_remote_desktop_session_check_can_notify (session, invocation))
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return TRUE;
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if (pressed)
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state = CLUTTER_KEY_STATE_PRESSED;
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@ -364,13 +390,8 @@ handle_notify_keyboard_keysym (MetaDBusRemoteDesktopSession *skeleton,
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MetaRemoteDesktopSession *session = META_REMOTE_DESKTOP_SESSION (skeleton);
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ClutterKeyState state;
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if (!check_permission (session, invocation))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Permission denied");
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return TRUE;
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}
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if (!meta_remote_desktop_session_check_can_notify (session, invocation))
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return TRUE;
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if (pressed)
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state = CLUTTER_KEY_STATE_PRESSED;
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@ -418,13 +439,8 @@ handle_notify_pointer_button (MetaDBusRemoteDesktopSession *skeleton,
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uint32_t button;
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ClutterButtonState state;
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if (!check_permission (session, invocation))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Permission denied");
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return TRUE;
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}
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if (!meta_remote_desktop_session_check_can_notify (session, invocation))
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return TRUE;
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button = translate_to_clutter_button (button_code);
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@ -454,13 +470,8 @@ handle_notify_pointer_axis (MetaDBusRemoteDesktopSession *skeleton,
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MetaRemoteDesktopSession *session = META_REMOTE_DESKTOP_SESSION (skeleton);
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ClutterScrollFinishFlags finish_flags = CLUTTER_SCROLL_FINISHED_NONE;
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if (!check_permission (session, invocation))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Permission denied");
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return TRUE;
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}
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if (!meta_remote_desktop_session_check_can_notify (session, invocation))
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return TRUE;
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if (flags & META_REMOTE_DESKTOP_NOTIFY_AXIS_FLAGS_FINISH)
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{
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@ -507,13 +518,8 @@ handle_notify_pointer_axis_discrete (MetaDBusRemoteDesktopSession *skeleton,
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ClutterScrollDirection direction;
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int step_count;
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if (!check_permission (session, invocation))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Permission denied");
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return TRUE;
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}
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if (!meta_remote_desktop_session_check_can_notify (session, invocation))
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return TRUE;
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if (axis > 1)
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{
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@ -558,13 +564,8 @@ handle_notify_pointer_motion_relative (MetaDBusRemoteDesktopSession *skeleton,
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{
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MetaRemoteDesktopSession *session = META_REMOTE_DESKTOP_SESSION (skeleton);
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if (!check_permission (session, invocation))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Permission denied");
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return TRUE;
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}
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if (!meta_remote_desktop_session_check_can_notify (session, invocation))
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return TRUE;
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clutter_virtual_input_device_notify_relative_motion (session->virtual_pointer,
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CLUTTER_CURRENT_TIME,
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@ -587,21 +588,8 @@ handle_notify_pointer_motion_absolute (MetaDBusRemoteDesktopSession *skeleton,
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MetaScreenCastStream *stream;
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double abs_x, abs_y;
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if (!check_permission (session, invocation))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Permission denied");
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return TRUE;
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}
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if (!session->screen_cast_session)
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_FAILED,
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"No screen cast active");
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return TRUE;
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}
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if (!meta_remote_desktop_session_check_can_notify (session, invocation))
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return TRUE;
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stream = meta_screen_cast_session_get_stream (session->screen_cast_session,
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stream_path);
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@ -637,21 +625,8 @@ handle_notify_touch_down (MetaDBusRemoteDesktopSession *skeleton,
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MetaScreenCastStream *stream;
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double abs_x, abs_y;
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if (!check_permission (session, invocation))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Permission denied");
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return TRUE;
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}
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if (!session->screen_cast_session)
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_FAILED,
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"No screen cast active");
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return TRUE;
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}
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if (!meta_remote_desktop_session_check_can_notify (session, invocation))
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return TRUE;
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stream = meta_screen_cast_session_get_stream (session->screen_cast_session,
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stream_path);
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@ -688,21 +663,8 @@ handle_notify_touch_motion (MetaDBusRemoteDesktopSession *skeleton,
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MetaScreenCastStream *stream;
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double abs_x, abs_y;
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if (!check_permission (session, invocation))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Permission denied");
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return TRUE;
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}
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if (!session->screen_cast_session)
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_FAILED,
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"No screen cast active");
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return TRUE;
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}
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if (!meta_remote_desktop_session_check_can_notify (session, invocation))
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return TRUE;
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stream = meta_screen_cast_session_get_stream (session->screen_cast_session,
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stream_path);
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@ -734,13 +696,8 @@ handle_notify_touch_up (MetaDBusRemoteDesktopSession *skeleton,
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{
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MetaRemoteDesktopSession *session = META_REMOTE_DESKTOP_SESSION (skeleton);
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if (!check_permission (session, invocation))
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"Permission denied");
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return TRUE;
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}
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if (!meta_remote_desktop_session_check_can_notify (session, invocation))
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return TRUE;
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clutter_virtual_input_device_notify_touch_up (session->virtual_touchscreen,
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CLUTTER_CURRENT_TIME,
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