[134] | 1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- |
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| 2 | * |
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| 3 | * Copyright (C) 2008 William Jon McCann <jmccann@redhat.com> |
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| 4 | * |
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| 5 | * This program is free software; you can redistribute it and/or modify |
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| 6 | * it under the terms of the GNU General Public License as published by |
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| 7 | * the Free Software Foundation; either version 2 of the License, or |
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| 8 | * (at your option) any later version. |
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| 9 | * |
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| 10 | * This program is distributed in the hope that it will be useful, |
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | * GNU General Public License for more details. |
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| 14 | * |
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| 15 | * You should have received a copy of the GNU General Public License |
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| 16 | * along with this program; if not, write to the Free Software |
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| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 18 | * |
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| 19 | */ |
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| 20 | |
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| 21 | #include "config.h" |
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| 22 | |
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| 23 | #include <stdlib.h> |
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| 24 | #include <stdio.h> |
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| 25 | #include <unistd.h> |
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| 26 | #include <sys/types.h> |
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| 27 | #include <sys/wait.h> |
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| 28 | #include <errno.h> |
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| 29 | |
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| 30 | #include <glib.h> |
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| 31 | #include <glib/gi18n.h> |
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| 32 | #include <glib/gstdio.h> |
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| 33 | #include <glib-object.h> |
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| 34 | |
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| 35 | #include <gdk/gdkx.h> |
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| 36 | #include <gtk/gtk.h> |
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| 37 | |
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| 38 | #include "gdm-remote-login-window.h" |
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| 39 | #include "gdm-common.h" |
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| 40 | |
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| 41 | #define GDM_REMOTE_LOGIN_WINDOW_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_REMOTE_LOGIN_WINDOW, GdmRemoteLoginWindowPrivate)) |
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| 42 | |
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| 43 | struct GdmRemoteLoginWindowPrivate |
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| 44 | { |
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| 45 | gboolean connected; |
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| 46 | char *hostname; |
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| 47 | char *display; |
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| 48 | GPid xserver_pid; |
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| 49 | guint xserver_watch_id; |
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| 50 | }; |
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| 51 | |
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| 52 | enum { |
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| 53 | PROP_0, |
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| 54 | }; |
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| 55 | |
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| 56 | enum { |
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| 57 | DISCONNECTED, |
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| 58 | LAST_SIGNAL |
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| 59 | }; |
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| 60 | |
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| 61 | static guint signals [LAST_SIGNAL] = { 0, }; |
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| 62 | |
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| 63 | static void gdm_remote_login_window_class_init (GdmRemoteLoginWindowClass *klass); |
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| 64 | static void gdm_remote_login_window_init (GdmRemoteLoginWindow *remote_login_window); |
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| 65 | static void gdm_remote_login_window_finalize (GObject *object); |
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| 66 | |
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| 67 | G_DEFINE_TYPE (GdmRemoteLoginWindow, gdm_remote_login_window, GTK_TYPE_WINDOW) |
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| 68 | |
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| 69 | static void |
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| 70 | xserver_child_watch (GPid pid, |
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| 71 | int status, |
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| 72 | GdmRemoteLoginWindow *login_window) |
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| 73 | { |
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| 74 | g_debug ("GdmRemoteLoginWindow: **** xserver (pid:%d) done (%s:%d)", |
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| 75 | (int) pid, |
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| 76 | WIFEXITED (status) ? "status" |
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| 77 | : WIFSIGNALED (status) ? "signal" |
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| 78 | : "unknown", |
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| 79 | WIFEXITED (status) ? WEXITSTATUS (status) |
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| 80 | : WIFSIGNALED (status) ? WTERMSIG (status) |
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| 81 | : -1); |
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| 82 | |
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| 83 | g_spawn_close_pid (login_window->priv->xserver_pid); |
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| 84 | |
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| 85 | login_window->priv->xserver_pid = -1; |
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| 86 | login_window->priv->xserver_watch_id = 0; |
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| 87 | |
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| 88 | gtk_widget_destroy (GTK_WIDGET (login_window)); |
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| 89 | } |
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| 90 | |
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| 91 | static gboolean |
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| 92 | start_xephyr (GdmRemoteLoginWindow *login_window) |
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| 93 | { |
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| 94 | GError *local_error; |
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| 95 | char **argv; |
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| 96 | gboolean res; |
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| 97 | gboolean ret; |
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| 98 | int flags; |
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| 99 | char *command; |
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| 100 | |
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| 101 | command = g_strdup_printf ("Xephyr -query %s -parent 0x%x -br -once %s", |
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| 102 | login_window->priv->hostname, |
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| 103 | (unsigned int)GDK_WINDOW_XID (GTK_WIDGET (login_window)->window), |
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| 104 | login_window->priv->display); |
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| 105 | g_debug ("GdmRemoteLoginWindow: Running: %s", command); |
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| 106 | |
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| 107 | ret = FALSE; |
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| 108 | |
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| 109 | argv = NULL; |
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| 110 | local_error = NULL; |
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| 111 | res = g_shell_parse_argv (command, NULL, &argv, &local_error); |
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| 112 | if (! res) { |
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| 113 | g_warning ("GdmRemoteLoginWindow: Unable to parse command: %s", local_error->message); |
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| 114 | g_error_free (local_error); |
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| 115 | goto out; |
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| 116 | } |
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| 117 | |
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| 118 | flags = G_SPAWN_SEARCH_PATH |
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| 119 | | G_SPAWN_DO_NOT_REAP_CHILD; |
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| 120 | |
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| 121 | local_error = NULL; |
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| 122 | res = g_spawn_async (NULL, |
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| 123 | argv, |
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| 124 | NULL, |
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| 125 | flags, |
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| 126 | NULL, |
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| 127 | NULL, |
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| 128 | &login_window->priv->xserver_pid, |
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| 129 | &local_error); |
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| 130 | g_strfreev (argv); |
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| 131 | |
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| 132 | if (! res) { |
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| 133 | g_warning ("GdmRemoteLoginWindow: Unable to run command %s: %s", |
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| 134 | command, |
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| 135 | local_error->message); |
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| 136 | g_error_free (local_error); |
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| 137 | goto out; |
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| 138 | } |
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| 139 | |
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| 140 | g_debug ("GdmRemoteLoginWindow: Started: pid=%d command='%s'", |
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| 141 | login_window->priv->xserver_pid, |
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| 142 | command); |
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| 143 | |
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| 144 | login_window->priv->xserver_watch_id = g_child_watch_add (login_window->priv->xserver_pid, |
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| 145 | (GChildWatchFunc)xserver_child_watch, |
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| 146 | login_window); |
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| 147 | ret = TRUE; |
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| 148 | |
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| 149 | out: |
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| 150 | g_free (command); |
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| 151 | |
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| 152 | return ret; |
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| 153 | } |
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| 154 | |
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| 155 | static gboolean |
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| 156 | start_xdmx (GdmRemoteLoginWindow *login_window) |
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| 157 | { |
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| 158 | char *cmd; |
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| 159 | gboolean res; |
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| 160 | GError *error; |
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| 161 | |
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| 162 | cmd = g_strdup_printf ("Xdmx -query %s -br -once %s", |
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| 163 | login_window->priv->hostname, |
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| 164 | login_window->priv->display); |
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| 165 | g_debug ("Running: %s", cmd); |
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| 166 | |
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| 167 | error = NULL; |
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| 168 | res = g_spawn_command_line_async (cmd, &error); |
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| 169 | |
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| 170 | g_free (cmd); |
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| 171 | |
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| 172 | if (! res) { |
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| 173 | g_warning ("Could not start Xdmx X server: %s", error->message); |
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| 174 | g_error_free (error); |
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| 175 | return FALSE; |
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| 176 | } |
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| 177 | |
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| 178 | return TRUE; |
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| 179 | } |
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| 180 | |
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| 181 | gboolean |
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| 182 | gdm_remote_login_window_connect (GdmRemoteLoginWindow *login_window, |
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| 183 | const char *hostname) |
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| 184 | { |
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| 185 | gboolean res; |
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| 186 | char *title; |
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| 187 | |
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| 188 | title = g_strdup_printf (_("Remote Login (Connecting to %s...)"), hostname); |
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| 189 | |
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| 190 | gtk_window_set_title (GTK_WINDOW (login_window), title); |
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| 191 | |
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| 192 | login_window->priv->hostname = g_strdup (hostname); |
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| 193 | login_window->priv->display = g_strdup (":300"); |
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| 194 | |
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| 195 | if (0) { |
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| 196 | res = start_xdmx (login_window); |
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| 197 | } else { |
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| 198 | res = start_xephyr (login_window); |
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| 199 | } |
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| 200 | |
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| 201 | if (res) { |
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| 202 | title = g_strdup_printf (_("Remote Login (Connected to %s)"), hostname); |
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| 203 | gtk_window_set_title (GTK_WINDOW (login_window), title); |
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| 204 | g_free (title); |
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| 205 | } |
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| 206 | |
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| 207 | return res; |
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| 208 | } |
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| 209 | |
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| 210 | static void |
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| 211 | gdm_remote_login_window_set_property (GObject *object, |
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| 212 | guint prop_id, |
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| 213 | const GValue *value, |
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| 214 | GParamSpec *pspec) |
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| 215 | { |
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| 216 | switch (prop_id) { |
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| 217 | default: |
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| 218 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
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| 219 | break; |
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| 220 | } |
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| 221 | } |
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| 222 | |
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| 223 | static void |
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| 224 | gdm_remote_login_window_get_property (GObject *object, |
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| 225 | guint prop_id, |
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| 226 | GValue *value, |
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| 227 | GParamSpec *pspec) |
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| 228 | { |
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| 229 | switch (prop_id) { |
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| 230 | default: |
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| 231 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
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| 232 | break; |
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| 233 | } |
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| 234 | } |
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| 235 | |
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| 236 | static GObject * |
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| 237 | gdm_remote_login_window_constructor (GType type, |
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| 238 | guint n_construct_properties, |
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| 239 | GObjectConstructParam *construct_properties) |
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| 240 | { |
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| 241 | GdmRemoteLoginWindow *login_window; |
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| 242 | |
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| 243 | login_window = GDM_REMOTE_LOGIN_WINDOW (G_OBJECT_CLASS (gdm_remote_login_window_parent_class)->constructor (type, |
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| 244 | n_construct_properties, |
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| 245 | construct_properties)); |
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| 246 | |
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| 247 | |
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| 248 | return G_OBJECT (login_window); |
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| 249 | } |
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| 250 | |
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| 251 | static void |
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| 252 | gdm_remote_login_window_class_init (GdmRemoteLoginWindowClass *klass) |
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| 253 | { |
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| 254 | GObjectClass *object_class = G_OBJECT_CLASS (klass); |
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| 255 | |
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| 256 | object_class->get_property = gdm_remote_login_window_get_property; |
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| 257 | object_class->set_property = gdm_remote_login_window_set_property; |
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| 258 | object_class->constructor = gdm_remote_login_window_constructor; |
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| 259 | object_class->finalize = gdm_remote_login_window_finalize; |
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| 260 | |
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| 261 | signals [DISCONNECTED] = |
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| 262 | g_signal_new ("disconnected", |
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| 263 | G_TYPE_FROM_CLASS (object_class), |
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| 264 | G_SIGNAL_RUN_LAST, |
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| 265 | G_STRUCT_OFFSET (GdmRemoteLoginWindowClass, disconnected), |
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| 266 | NULL, |
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| 267 | NULL, |
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| 268 | g_cclosure_marshal_VOID__VOID, |
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| 269 | G_TYPE_NONE, |
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| 270 | 0); |
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| 271 | |
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| 272 | g_type_class_add_private (klass, sizeof (GdmRemoteLoginWindowPrivate)); |
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| 273 | } |
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| 274 | |
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| 275 | static void |
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| 276 | gdm_remote_login_window_init (GdmRemoteLoginWindow *login_window) |
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| 277 | { |
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| 278 | login_window->priv = GDM_REMOTE_LOGIN_WINDOW_GET_PRIVATE (login_window); |
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| 279 | |
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| 280 | gtk_window_set_position (GTK_WINDOW (login_window), GTK_WIN_POS_CENTER_ALWAYS); |
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| 281 | gtk_window_set_title (GTK_WINDOW (login_window), _("Remote Login")); |
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| 282 | gtk_window_set_decorated (GTK_WINDOW (login_window), FALSE); |
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| 283 | gtk_window_set_skip_taskbar_hint (GTK_WINDOW (login_window), TRUE); |
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| 284 | gtk_window_set_skip_pager_hint (GTK_WINDOW (login_window), TRUE); |
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| 285 | gtk_window_stick (GTK_WINDOW (login_window)); |
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| 286 | gtk_window_maximize (GTK_WINDOW (login_window)); |
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| 287 | gtk_window_set_icon_name (GTK_WINDOW (login_window), "computer"); |
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| 288 | } |
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| 289 | |
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| 290 | static void |
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| 291 | gdm_remote_login_window_finalize (GObject *object) |
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| 292 | { |
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| 293 | GdmRemoteLoginWindow *login_window; |
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| 294 | |
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| 295 | g_return_if_fail (object != NULL); |
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| 296 | g_return_if_fail (GDM_IS_REMOTE_LOGIN_WINDOW (object)); |
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| 297 | |
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| 298 | login_window = GDM_REMOTE_LOGIN_WINDOW (object); |
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| 299 | |
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| 300 | g_return_if_fail (login_window->priv != NULL); |
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| 301 | |
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| 302 | G_OBJECT_CLASS (gdm_remote_login_window_parent_class)->finalize (object); |
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| 303 | } |
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| 304 | |
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| 305 | GtkWidget * |
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| 306 | gdm_remote_login_window_new (gboolean is_local) |
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| 307 | { |
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| 308 | GObject *object; |
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| 309 | |
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| 310 | object = g_object_new (GDM_TYPE_REMOTE_LOGIN_WINDOW, |
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| 311 | NULL); |
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| 312 | |
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| 313 | return GTK_WIDGET (object); |
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| 314 | } |
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