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) 2007 William Jon McCann <mccann@jhu.edu> |
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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 | #include "config.h" |
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21 | |
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22 | #include <stdlib.h> |
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23 | #include <locale.h> |
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24 | #include <unistd.h> |
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25 | #include <signal.h> |
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26 | #include <string.h> |
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27 | |
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28 | #include <glib.h> |
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29 | #include <glib/gi18n.h> |
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30 | #include <gdk/gdkx.h> |
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31 | #include <gtk/gtk.h> |
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32 | #include <gst/gst.h> |
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33 | #include <gconf/gconf-client.h> |
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34 | |
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35 | #include <dbus/dbus-glib.h> |
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36 | |
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37 | #include "gdm-log.h" |
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38 | #include "gdm-common.h" |
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39 | #include "gdm-signal-handler.h" |
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40 | #include "gdm-settings-client.h" |
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41 | #include "gdm-settings-keys.h" |
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42 | #include "gdm-profile.h" |
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43 | |
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44 | #include "gdm-greeter-session.h" |
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45 | |
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46 | #define DEBUG_KEY "/apps/gdm/simple-greeter/debug" |
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47 | |
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48 | #define SM_DBUS_NAME "org.gnome.SessionManager" |
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49 | #define SM_DBUS_PATH "/org/gnome/SessionManager" |
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50 | #define SM_DBUS_INTERFACE "org.gnome.SessionManager" |
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51 | |
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52 | #define SM_CLIENT_DBUS_INTERFACE "org.gnome.SessionManager.ClientPrivate" |
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53 | |
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54 | static DBusGConnection *bus_connection = NULL; |
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55 | static DBusGProxy *sm_proxy = NULL; |
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56 | static char *client_id = NULL; |
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57 | static DBusGProxy *client_proxy = NULL; |
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58 | |
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59 | static gboolean |
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60 | is_debug_set (void) |
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61 | { |
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62 | GConfClient *client; |
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63 | gboolean is; |
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64 | |
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65 | /* enable debugging for unstable builds */ |
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66 | if (gdm_is_version_unstable ()) { |
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67 | return TRUE; |
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68 | } |
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69 | |
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70 | client = gconf_client_get_default (); |
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71 | is = gconf_client_get_bool (client, DEBUG_KEY, NULL); |
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72 | g_object_unref (client); |
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73 | |
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74 | return is; |
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75 | } |
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76 | |
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77 | |
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78 | static gboolean |
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79 | signal_cb (int signo, |
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80 | gpointer data) |
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81 | { |
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82 | int ret; |
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83 | |
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84 | g_debug ("Got callback for signal %d", signo); |
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85 | |
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86 | ret = TRUE; |
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87 | |
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88 | switch (signo) { |
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89 | case SIGFPE: |
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90 | case SIGPIPE: |
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91 | /* let the fatal signals interrupt us */ |
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92 | g_debug ("Caught signal %d, shutting down abnormally.", signo); |
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93 | ret = FALSE; |
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94 | |
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95 | break; |
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96 | |
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97 | case SIGINT: |
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98 | case SIGTERM: |
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99 | /* let the fatal signals interrupt us */ |
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100 | g_debug ("Caught signal %d, shutting down normally.", signo); |
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101 | ret = FALSE; |
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102 | |
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103 | break; |
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104 | |
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105 | case SIGHUP: |
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106 | g_debug ("Got HUP signal"); |
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107 | /* FIXME: |
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108 | * Reread config stuff like system config files, VPN service files, etc |
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109 | */ |
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110 | ret = TRUE; |
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111 | |
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112 | break; |
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113 | |
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114 | case SIGUSR1: |
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115 | g_debug ("Got USR1 signal"); |
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116 | /* FIXME: |
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117 | * Play with log levels or something |
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118 | */ |
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119 | ret = TRUE; |
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120 | |
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121 | gdm_log_toggle_debug (); |
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122 | |
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123 | break; |
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124 | |
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125 | default: |
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126 | g_debug ("Caught unhandled signal %d", signo); |
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127 | ret = TRUE; |
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128 | |
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129 | break; |
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130 | } |
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131 | |
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132 | return ret; |
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133 | } |
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134 | |
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135 | static gboolean |
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136 | session_manager_connect (void) |
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137 | { |
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138 | |
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139 | if (bus_connection == NULL) { |
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140 | GError *error; |
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141 | |
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142 | error = NULL; |
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143 | bus_connection = dbus_g_bus_get (DBUS_BUS_SESSION, &error); |
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144 | if (bus_connection == NULL) { |
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145 | g_message ("Failed to connect to the session bus: %s", |
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146 | error->message); |
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147 | g_error_free (error); |
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148 | exit (1); |
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149 | } |
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150 | } |
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151 | |
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152 | sm_proxy = dbus_g_proxy_new_for_name (bus_connection, |
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153 | SM_DBUS_NAME, |
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154 | SM_DBUS_PATH, |
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155 | SM_DBUS_INTERFACE); |
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156 | return (sm_proxy != NULL); |
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157 | } |
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158 | |
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159 | static void |
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160 | stop_cb (gpointer data) |
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161 | { |
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162 | gtk_main_quit (); |
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163 | } |
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164 | |
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165 | static gboolean |
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166 | end_session_response (gboolean is_okay, const gchar *reason) |
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167 | { |
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168 | gboolean ret; |
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169 | GError *error = NULL; |
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170 | |
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171 | ret = dbus_g_proxy_call (client_proxy, "EndSessionResponse", |
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172 | &error, |
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173 | G_TYPE_BOOLEAN, is_okay, |
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174 | G_TYPE_STRING, reason, |
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175 | G_TYPE_INVALID, |
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176 | G_TYPE_INVALID); |
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177 | |
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178 | if (!ret) { |
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179 | g_warning ("Failed to send session response %s", error->message); |
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180 | g_error_free (error); |
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181 | } |
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182 | |
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183 | return ret; |
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184 | } |
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185 | |
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186 | static void |
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187 | query_end_session_cb (guint flags, gpointer data) |
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188 | { |
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189 | end_session_response (TRUE, NULL); |
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190 | } |
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191 | |
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192 | static void |
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193 | end_session_cb (guint flags, gpointer data) |
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194 | { |
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195 | end_session_response (TRUE, NULL); |
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196 | gtk_main_quit (); |
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197 | } |
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198 | |
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199 | static gboolean |
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200 | register_client (void) |
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201 | { |
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202 | GError *error; |
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203 | gboolean res; |
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204 | const char *startup_id; |
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205 | const char *app_id; |
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206 | |
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207 | startup_id = g_getenv ("DESKTOP_AUTOSTART_ID"); |
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208 | app_id = "gdm-simple-greeter.desktop"; |
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209 | |
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210 | error = NULL; |
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211 | res = dbus_g_proxy_call (sm_proxy, |
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212 | "RegisterClient", |
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213 | &error, |
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214 | G_TYPE_STRING, app_id, |
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215 | G_TYPE_STRING, startup_id, |
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216 | G_TYPE_INVALID, |
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217 | DBUS_TYPE_G_OBJECT_PATH, &client_id, |
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218 | G_TYPE_INVALID); |
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219 | if (! res) { |
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220 | g_warning ("Failed to register client: %s", error->message); |
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221 | g_error_free (error); |
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222 | return FALSE; |
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223 | } |
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224 | |
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225 | g_debug ("Client registered with session manager: %s", client_id); |
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226 | client_proxy = dbus_g_proxy_new_for_name (bus_connection, |
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227 | SM_DBUS_NAME, |
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228 | client_id, |
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229 | SM_CLIENT_DBUS_INTERFACE); |
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230 | |
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231 | dbus_g_proxy_add_signal (client_proxy, "Stop", G_TYPE_INVALID); |
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232 | dbus_g_proxy_connect_signal (client_proxy, "Stop", |
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233 | G_CALLBACK (stop_cb), NULL, NULL); |
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234 | |
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235 | dbus_g_proxy_add_signal (client_proxy, "QueryEndSession", G_TYPE_UINT, G_TYPE_INVALID); |
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236 | dbus_g_proxy_connect_signal (client_proxy, "QueryEndSession", |
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237 | G_CALLBACK (query_end_session_cb), NULL, NULL); |
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238 | |
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239 | dbus_g_proxy_add_signal (client_proxy, "EndSession", G_TYPE_UINT, G_TYPE_INVALID); |
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240 | dbus_g_proxy_connect_signal (client_proxy, "EndSession", |
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241 | G_CALLBACK (end_session_cb), NULL, NULL); |
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242 | |
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243 | g_unsetenv ("DESKTOP_AUTOSTART_ID"); |
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244 | |
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245 | return TRUE; |
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246 | } |
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247 | |
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248 | int |
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249 | main (int argc, char *argv[]) |
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250 | { |
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251 | GError *error; |
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252 | GdmGreeterSession *session; |
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253 | gboolean res; |
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254 | GdmSignalHandler *signal_handler; |
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255 | |
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256 | bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR); |
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257 | bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); |
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258 | textdomain (GETTEXT_PACKAGE); |
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259 | |
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260 | setlocale (LC_ALL, ""); |
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261 | |
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262 | gdm_set_fatal_warnings_if_unstable (); |
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263 | |
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264 | g_type_init (); |
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265 | |
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266 | gdm_profile_start ("Initializing settings client"); |
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267 | if (! gdm_settings_client_init (GDMCONFDIR "/gdm.schemas", "/")) { |
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268 | g_critical ("Unable to initialize settings client"); |
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269 | exit (1); |
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270 | } |
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271 | gdm_profile_end ("Initializing settings client"); |
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272 | |
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273 | g_debug ("Greeter session pid=%d display=%s xauthority=%s", |
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274 | (int)getpid (), |
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275 | g_getenv ("DISPLAY"), |
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276 | g_getenv ("XAUTHORITY")); |
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277 | |
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278 | /* FIXME: For testing to make it easier to attach gdb */ |
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279 | /*sleep (15);*/ |
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280 | |
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281 | gdm_log_init (); |
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282 | gdm_log_set_debug (is_debug_set ()); |
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283 | |
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284 | gtk_init (&argc, &argv); |
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285 | gst_init (&argc, &argv); |
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286 | |
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287 | signal_handler = gdm_signal_handler_new (); |
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288 | gdm_signal_handler_add_fatal (signal_handler); |
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289 | gdm_signal_handler_add (signal_handler, SIGTERM, signal_cb, NULL); |
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290 | gdm_signal_handler_add (signal_handler, SIGINT, signal_cb, NULL); |
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291 | gdm_signal_handler_add (signal_handler, SIGFPE, signal_cb, NULL); |
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292 | gdm_signal_handler_add (signal_handler, SIGHUP, signal_cb, NULL); |
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293 | gdm_signal_handler_add (signal_handler, SIGUSR1, signal_cb, NULL); |
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294 | |
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295 | gdm_profile_start ("Creating new greeter session"); |
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296 | session = gdm_greeter_session_new (); |
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297 | if (session == NULL) { |
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298 | g_critical ("Unable to create greeter session"); |
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299 | exit (1); |
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300 | } |
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301 | gdm_profile_end ("Creating new greeter session"); |
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302 | |
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303 | error = NULL; |
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304 | res = gdm_greeter_session_start (session, &error); |
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305 | if (! res) { |
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306 | g_warning ("Unable to start greeter session: %s", error->message); |
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307 | g_error_free (error); |
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308 | exit (1); |
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309 | } |
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310 | |
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311 | res = session_manager_connect (); |
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312 | if (! res) { |
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313 | g_warning ("Unable to connect to session manager"); |
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314 | exit (1); |
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315 | } |
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316 | |
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317 | res = register_client (); |
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318 | if (! res) { |
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319 | g_warning ("Unable to register client with session manager"); |
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320 | } |
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321 | |
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322 | gtk_main (); |
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323 | |
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324 | if (session != NULL) { |
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325 | g_object_unref (session); |
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326 | } |
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327 | |
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328 | return 0; |
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329 | } |
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