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 <fcntl.h> |
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26 | #include <unistd.h> |
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27 | #include <string.h> |
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28 | #include <signal.h> |
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29 | #include <sys/stat.h> |
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30 | #include <sys/types.h> |
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31 | #include <sys/socket.h> |
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32 | #include <errno.h> |
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33 | |
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34 | #include <glib.h> |
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35 | #include <glib/gi18n.h> |
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36 | #include <glib-object.h> |
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37 | |
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38 | #include "gdm-display.h" |
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39 | #include "gdm-xdmcp-chooser-display.h" |
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40 | #include "gdm-xdmcp-chooser-display-glue.h" |
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41 | |
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42 | #include "gdm-common.h" |
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43 | #include "gdm-address.h" |
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44 | |
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45 | #define DEFAULT_SLAVE_COMMAND LIBEXECDIR"/gdm-xdmcp-chooser-slave" |
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46 | |
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47 | #define GDM_DBUS_NAME "/org/gnome/DisplayManager" |
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48 | #define GDM_XDMCP_CHOOSER_SLAVE_DBUS_INTERFACE "org.gnome.DisplayManager.XdmcpChooserSlave" |
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49 | |
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50 | #define GDM_XDMCP_CHOOSER_DISPLAY_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_XDMCP_CHOOSER_DISPLAY, GdmXdmcpChooserDisplayPrivate)) |
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51 | |
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52 | struct GdmXdmcpChooserDisplayPrivate |
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53 | { |
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54 | DBusGProxy *slave_proxy; |
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55 | }; |
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56 | |
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57 | enum { |
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58 | PROP_0, |
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59 | }; |
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60 | |
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61 | enum { |
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62 | HOSTNAME_SELECTED, |
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63 | LAST_SIGNAL |
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64 | }; |
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65 | |
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66 | static guint signals [LAST_SIGNAL] = { 0, }; |
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67 | |
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68 | static void gdm_xdmcp_chooser_display_class_init (GdmXdmcpChooserDisplayClass *klass); |
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69 | static void gdm_xdmcp_chooser_display_init (GdmXdmcpChooserDisplay *xdmcp_chooser_display); |
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70 | static void gdm_xdmcp_chooser_display_finalize (GObject *object); |
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71 | |
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72 | G_DEFINE_TYPE (GdmXdmcpChooserDisplay, gdm_xdmcp_chooser_display, GDM_TYPE_XDMCP_DISPLAY) |
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73 | |
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74 | static void |
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75 | on_hostname_selected (DBusGProxy *proxy, |
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76 | const char *hostname, |
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77 | GdmXdmcpChooserDisplay *display) |
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78 | { |
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79 | g_debug ("GdmXdmcpChooserDisplay: hostname selected: %s", hostname); |
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80 | g_signal_emit (display, signals [HOSTNAME_SELECTED], 0, hostname); |
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81 | } |
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82 | |
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83 | static gboolean |
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84 | gdm_xdmcp_chooser_display_set_slave_bus_name (GdmDisplay *display, |
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85 | const char *name, |
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86 | GError **error) |
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87 | { |
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88 | char *display_id; |
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89 | const char *slave_num; |
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90 | char *slave_id; |
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91 | DBusGConnection *connection; |
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92 | GError *local_error; |
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93 | GdmXdmcpChooserDisplay *chooser_display; |
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94 | |
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95 | display_id = NULL; |
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96 | slave_id = NULL; |
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97 | slave_num = NULL; |
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98 | |
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99 | chooser_display = GDM_XDMCP_CHOOSER_DISPLAY (display); |
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100 | if (chooser_display->priv->slave_proxy != NULL) { |
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101 | g_object_unref (chooser_display->priv->slave_proxy); |
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102 | } |
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103 | |
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104 | g_object_get (display, "id", &display_id, NULL); |
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105 | |
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106 | if (g_str_has_prefix (display_id, "/org/gnome/DisplayManager/Display")) { |
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107 | slave_num = display_id + strlen ("/org/gnome/DisplayManager/Display"); |
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108 | } |
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109 | |
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110 | slave_id = g_strdup_printf ("/org/gnome/DisplayManager/Slave%s", slave_num); |
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111 | |
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112 | local_error = NULL; |
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113 | connection = dbus_g_bus_get (DBUS_BUS_SYSTEM, &local_error); |
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114 | if (connection == NULL) { |
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115 | if (local_error != NULL) { |
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116 | g_critical ("error getting system bus: %s", local_error->message); |
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117 | g_error_free (local_error); |
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118 | } |
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119 | } |
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120 | |
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121 | g_debug ("GdmXdmcpChooserDisplay: creating proxy for %s on %s", slave_id, name); |
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122 | |
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123 | chooser_display->priv->slave_proxy = dbus_g_proxy_new_for_name (connection, |
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124 | name, |
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125 | slave_id, |
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126 | GDM_XDMCP_CHOOSER_SLAVE_DBUS_INTERFACE); |
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127 | if (chooser_display->priv->slave_proxy == NULL) { |
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128 | g_warning ("Failed to connect to the slave object"); |
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129 | goto out; |
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130 | } |
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131 | dbus_g_proxy_add_signal (chooser_display->priv->slave_proxy, |
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132 | "HostnameSelected", |
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133 | G_TYPE_STRING, |
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134 | G_TYPE_INVALID); |
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135 | dbus_g_proxy_connect_signal (chooser_display->priv->slave_proxy, |
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136 | "HostnameSelected", |
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137 | G_CALLBACK (on_hostname_selected), |
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138 | display, |
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139 | NULL); |
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140 | out: |
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141 | |
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142 | g_free (display_id); |
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143 | g_free (slave_id); |
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144 | |
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145 | return GDM_DISPLAY_CLASS (gdm_xdmcp_chooser_display_parent_class)->set_slave_bus_name (display, name, error); |
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146 | } |
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147 | |
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148 | static gboolean |
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149 | gdm_xdmcp_chooser_display_manage (GdmDisplay *display) |
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150 | { |
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151 | g_return_val_if_fail (GDM_IS_DISPLAY (display), FALSE); |
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152 | |
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153 | GDM_DISPLAY_CLASS (gdm_xdmcp_chooser_display_parent_class)->manage (display); |
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154 | |
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155 | return TRUE; |
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156 | } |
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157 | |
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158 | static void |
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159 | gdm_xdmcp_chooser_display_class_init (GdmXdmcpChooserDisplayClass *klass) |
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160 | { |
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161 | GObjectClass *object_class = G_OBJECT_CLASS (klass); |
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162 | GdmDisplayClass *display_class = GDM_DISPLAY_CLASS (klass); |
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163 | |
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164 | object_class->finalize = gdm_xdmcp_chooser_display_finalize; |
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165 | |
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166 | display_class->manage = gdm_xdmcp_chooser_display_manage; |
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167 | display_class->set_slave_bus_name = gdm_xdmcp_chooser_display_set_slave_bus_name; |
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168 | |
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169 | signals [HOSTNAME_SELECTED] = |
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170 | g_signal_new ("hostname-selected", |
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171 | G_OBJECT_CLASS_TYPE (object_class), |
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172 | G_SIGNAL_RUN_FIRST, |
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173 | G_STRUCT_OFFSET (GdmXdmcpChooserDisplayClass, hostname_selected), |
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174 | NULL, |
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175 | NULL, |
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176 | g_cclosure_marshal_VOID__STRING, |
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177 | G_TYPE_NONE, |
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178 | 1, |
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179 | G_TYPE_STRING); |
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180 | |
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181 | g_type_class_add_private (klass, sizeof (GdmXdmcpChooserDisplayPrivate)); |
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182 | |
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183 | dbus_g_object_type_install_info (GDM_TYPE_XDMCP_CHOOSER_DISPLAY, &dbus_glib_gdm_xdmcp_chooser_display_object_info); |
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184 | } |
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185 | |
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186 | static void |
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187 | gdm_xdmcp_chooser_display_init (GdmXdmcpChooserDisplay *xdmcp_chooser_display) |
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188 | { |
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189 | |
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190 | xdmcp_chooser_display->priv = GDM_XDMCP_CHOOSER_DISPLAY_GET_PRIVATE (xdmcp_chooser_display); |
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191 | } |
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192 | |
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193 | static void |
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194 | gdm_xdmcp_chooser_display_finalize (GObject *object) |
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195 | { |
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196 | GdmXdmcpChooserDisplay *chooser_display; |
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197 | |
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198 | g_return_if_fail (object != NULL); |
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199 | g_return_if_fail (GDM_IS_XDMCP_CHOOSER_DISPLAY (object)); |
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200 | |
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201 | chooser_display = GDM_XDMCP_CHOOSER_DISPLAY (object); |
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202 | |
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203 | g_return_if_fail (chooser_display->priv != NULL); |
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204 | |
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205 | if (chooser_display->priv->slave_proxy != NULL) { |
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206 | g_object_unref (chooser_display->priv->slave_proxy); |
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207 | } |
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208 | |
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209 | G_OBJECT_CLASS (gdm_xdmcp_chooser_display_parent_class)->finalize (object); |
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210 | } |
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211 | |
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212 | GdmDisplay * |
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213 | gdm_xdmcp_chooser_display_new (const char *hostname, |
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214 | int number, |
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215 | GdmAddress *address, |
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216 | gint32 session_number) |
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217 | { |
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218 | GObject *object; |
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219 | char *x11_display; |
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220 | |
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221 | x11_display = g_strdup_printf ("%s:%d", hostname, number); |
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222 | object = g_object_new (GDM_TYPE_XDMCP_CHOOSER_DISPLAY, |
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223 | "slave-command", DEFAULT_SLAVE_COMMAND, |
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224 | "remote-hostname", hostname, |
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225 | "x11-display-number", number, |
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226 | "x11-display-name", x11_display, |
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227 | "is-local", FALSE, |
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228 | "remote-address", address, |
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229 | "session-number", session_number, |
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230 | NULL); |
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231 | g_free (x11_display); |
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232 | |
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233 | return GDM_DISPLAY (object); |
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234 | } |
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