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/*
* Copyright (C) 2010-2011 Robert Ancell.
* Author: Robert Ancell <robert.ancell@canonical.com>
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version. See http://www.gnu.org/copyleft/gpl.html the full text of the
* license.
*/
#include <config.h>
#include <string.h>
#include <xcb/xcb.h>
#include "x-server.h"
#include "configuration.h"
struct XServerPrivate
{
/* Host running the server */
gchar *hostname;
/* Display number */
guint number;
/* Cached server address */
gchar *address;
/* Authority */
XAuthority *authority;
/* Connection to this X server */
xcb_connection_t *connection;
};
G_DEFINE_TYPE (XServer, x_server, DISPLAY_SERVER_TYPE);
void
x_server_set_hostname (XServer *server, const gchar *hostname)
{
g_return_if_fail (server != NULL);
g_free (server->priv->hostname);
server->priv->hostname = g_strdup (hostname);
g_free (server->priv->address);
server->priv->address = NULL;
}
gchar *
x_server_get_hostname (XServer *server)
{
g_return_val_if_fail (server != NULL, NULL);
return server->priv->hostname;
}
void
x_server_set_display_number (XServer *server, guint number)
{
g_return_if_fail (server != NULL);
server->priv->number = number;
g_free (server->priv->address);
server->priv->address = NULL;
}
guint
x_server_get_display_number (XServer *server)
{
g_return_val_if_fail (server != NULL, 0);
return server->priv->number;
}
const gchar *
x_server_get_address (XServer *server)
{
g_return_val_if_fail (server != NULL, NULL);
if (!server->priv->address)
{
if (server->priv->hostname)
server->priv->address = g_strdup_printf("%s:%d", server->priv->hostname, server->priv->number);
else
server->priv->address = g_strdup_printf(":%d", server->priv->number);
}
return server->priv->address;
}
void
x_server_set_authority (XServer *server, XAuthority *authority)
{
g_return_if_fail (server != NULL);
if (server->priv->authority)
g_object_unref (server->priv->authority);
if (authority)
server->priv->authority = g_object_ref (authority);
else
server->priv->authority = NULL;
}
XAuthority *
x_server_get_authority (XServer *server)
{
g_return_val_if_fail (server != NULL, NULL);
return server->priv->authority;
}
static const gchar *
x_server_get_session_type (DisplayServer *server)
{
return "x";
}
static gboolean
x_server_get_can_share (DisplayServer *server)
{
return TRUE;
}
static gboolean
x_server_start (DisplayServer *display_server)
{
XServer *server = X_SERVER (display_server);
xcb_auth_info_t *auth = NULL, a;
if (server->priv->authority)
{
a.namelen = strlen (x_authority_get_authorization_name (server->priv->authority));
a.name = (char *) x_authority_get_authorization_name (server->priv->authority);
a.datalen = x_authority_get_authorization_data_length (server->priv->authority);
a.data = (char *) x_authority_get_authorization_data (server->priv->authority);
auth = &a;
}
/* Open connection */
l_debug (server, "Connecting to XServer %s", x_server_get_address (server));
server->priv->connection = xcb_connect_to_display_with_auth_info (x_server_get_address (server), auth, NULL);
if (xcb_connection_has_error (server->priv->connection))
{
l_debug (server, "Error connecting to XServer %s", x_server_get_address (server));
return FALSE;
}
return DISPLAY_SERVER_CLASS (x_server_parent_class)->start (display_server);
}
static void
x_server_connect_session (DisplayServer *display_server, Session *session)
{
gint vt;
display_server = session_get_display_server (session);
vt = display_server_get_vt (display_server);
if (vt > 0)
{
gchar *t;
t = g_strdup_printf ("/dev/tty%d", vt);
session_set_tty (session, t);
g_free (t);
t = g_strdup_printf ("%d", vt);
session_set_env (session, "XDG_VTNR", t);
g_free (t);
}
else
l_debug (session, "Not setting XDG_VTNR");
session_set_env (session, "DISPLAY", x_server_get_address (X_SERVER (display_server)));
session_set_xdisplay (session, x_server_get_address (X_SERVER (display_server)));
session_set_remote_host_name (session, x_server_get_hostname (X_SERVER (display_server)));
session_set_x_authority (session,
x_server_get_authority (X_SERVER (display_server)),
config_get_boolean (config_get_instance (), "LightDM", "user-authority-in-system-dir"));
}
static void
x_server_disconnect_session (DisplayServer *display_server, Session *session)
{
gint vt;
vt = display_server_get_vt (display_server);
if (vt > 0)
{
session_set_tty (session, NULL);
session_unset_env (session, "XDG_VTNR");
}
session_unset_env (session, "DISPLAY");
session_set_xdisplay (session, NULL);
session_set_remote_host_name (session, NULL);
session_set_x_authority (session, NULL, FALSE);
}
void
x_server_init (XServer *server)
{
server->priv = G_TYPE_INSTANCE_GET_PRIVATE (server, X_SERVER_TYPE, XServerPrivate);
}
static void
x_server_finalize (GObject *object)
{
XServer *self;
self = X_SERVER (object);
g_free (self->priv->hostname);
g_free (self->priv->address);
if (self->priv->authority)
g_object_unref (self->priv->authority);
if (self->priv->connection)
xcb_disconnect (self->priv->connection);
G_OBJECT_CLASS (x_server_parent_class)->finalize (object);
}
static void
x_server_class_init (XServerClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
DisplayServerClass *display_server_class = DISPLAY_SERVER_CLASS (klass);
display_server_class->get_session_type = x_server_get_session_type;
display_server_class->get_can_share = x_server_get_can_share;
display_server_class->start = x_server_start;
display_server_class->connect_session = x_server_connect_session;
display_server_class->disconnect_session = x_server_disconnect_session;
object_class->finalize = x_server_finalize;
g_type_class_add_private (klass, sizeof (XServerPrivate));
}
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