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) 2007-2008 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 | |
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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 <errno.h> |
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30 | #include <sys/stat.h> |
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31 | #include <sys/types.h> |
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32 | |
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33 | #ifdef HAVE_PATHS_H |
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34 | #include <paths.h> |
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35 | #endif /* HAVE_PATHS_H */ |
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36 | |
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37 | #include <glib.h> |
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38 | #include <glib/gi18n.h> |
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39 | #include <glib/gstdio.h> |
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40 | #include <glib-object.h> |
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41 | #include <gio/gio.h> |
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42 | |
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43 | #include <dbus/dbus.h> |
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44 | #include <dbus/dbus-glib.h> |
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45 | #include <dbus/dbus-glib-lowlevel.h> |
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46 | |
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47 | #include "gdm-user-manager.h" |
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48 | #include "gdm-user-private.h" |
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49 | |
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50 | #define GDM_USER_MANAGER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_USER_MANAGER, GdmUserManagerPrivate)) |
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51 | |
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52 | #define CK_NAME "org.freedesktop.ConsoleKit" |
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53 | #define CK_PATH "/org/freedesktop/ConsoleKit" |
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54 | #define CK_INTERFACE "org.freedesktop.ConsoleKit" |
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55 | |
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56 | #define CK_MANAGER_PATH "/org/freedesktop/ConsoleKit/Manager" |
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57 | #define CK_MANAGER_INTERFACE "org.freedesktop.ConsoleKit.Manager" |
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58 | #define CK_SEAT_INTERFACE "org.freedesktop.ConsoleKit.Seat" |
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59 | #define CK_SESSION_INTERFACE "org.freedesktop.ConsoleKit.Session" |
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60 | |
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61 | /* Prefs Defaults */ |
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62 | #define DEFAULT_ALLOW_ROOT TRUE |
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63 | #define DEFAULT_MAX_ICON_SIZE 128 |
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64 | #define DEFAULT_USER_MAX_FILE 65536 |
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65 | |
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66 | #ifdef __sun |
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67 | #define DEFAULT_MINIMAL_UID 100 |
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68 | #else |
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69 | #define DEFAULT_MINIMAL_UID 500 |
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70 | #endif |
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71 | |
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72 | #ifndef _PATH_SHELLS |
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73 | #define _PATH_SHELLS "/etc/shells" |
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74 | #endif |
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75 | #define PATH_PASSWD "/etc/passwd" |
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76 | |
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77 | #define DEFAULT_GLOBAL_FACE_DIR DATADIR "/faces" |
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78 | #define DEFAULT_USER_ICON "stock_person" |
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79 | #define DEFAULT_EXCLUDE { "bin", \ |
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80 | "root", \ |
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81 | "daemon", \ |
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82 | "adm", \ |
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83 | "lp", \ |
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84 | "sync", \ |
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85 | "shutdown", \ |
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86 | "halt", \ |
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87 | "mail", \ |
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88 | "news", \ |
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89 | "uucp", \ |
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90 | "operator", \ |
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91 | "nobody", \ |
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92 | "nobody4", \ |
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93 | "noaccess", \ |
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94 | GDM_USERNAME, \ |
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95 | "postgres", \ |
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96 | "pvm", \ |
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97 | "rpm", \ |
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98 | "nfsnobody", \ |
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99 | "pcap", \ |
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100 | NULL } |
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101 | |
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102 | struct GdmUserManagerPrivate |
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103 | { |
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104 | GHashTable *users; |
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105 | GHashTable *sessions; |
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106 | GHashTable *exclusions; |
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107 | GHashTable *shells; |
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108 | DBusGConnection *connection; |
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109 | DBusGProxy *seat_proxy; |
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110 | char *seat_id; |
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111 | |
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112 | GFileMonitor *passwd_monitor; |
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113 | GFileMonitor *shells_monitor; |
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114 | |
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115 | guint reload_id; |
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116 | guint ck_history_id; |
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117 | |
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118 | guint8 users_dirty : 1; |
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119 | }; |
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120 | |
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121 | enum { |
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122 | LOADING_USERS, |
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123 | USERS_LOADED, |
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124 | USER_ADDED, |
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125 | USER_REMOVED, |
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126 | USER_IS_LOGGED_IN_CHANGED, |
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127 | USER_LOGIN_FREQUENCY_CHANGED, |
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128 | LAST_SIGNAL |
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129 | }; |
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130 | |
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131 | static guint signals [LAST_SIGNAL] = { 0, }; |
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132 | |
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133 | static void gdm_user_manager_class_init (GdmUserManagerClass *klass); |
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134 | static void gdm_user_manager_init (GdmUserManager *user_manager); |
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135 | static void gdm_user_manager_finalize (GObject *object); |
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136 | |
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137 | static gpointer user_manager_object = NULL; |
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138 | |
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139 | G_DEFINE_TYPE (GdmUserManager, gdm_user_manager, G_TYPE_OBJECT) |
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140 | |
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141 | GQuark |
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142 | gdm_user_manager_error_quark (void) |
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143 | { |
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144 | static GQuark ret = 0; |
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145 | if (ret == 0) { |
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146 | ret = g_quark_from_static_string ("gdm_user_manager_error"); |
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147 | } |
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148 | |
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149 | return ret; |
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150 | } |
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151 | |
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152 | static gboolean |
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153 | start_new_login_session (GdmUserManager *manager) |
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154 | { |
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155 | GError *error; |
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156 | gboolean res; |
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157 | |
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158 | res = g_spawn_command_line_async ("gdmflexiserver -s", &error); |
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159 | if (! res) { |
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160 | if (error != NULL) { |
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161 | g_warning ("Unable to start new login: %s", error->message); |
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162 | g_error_free (error); |
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163 | } else { |
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164 | g_warning ("Unable to start new login"); |
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165 | } |
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166 | } |
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167 | |
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168 | return res; |
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169 | } |
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170 | |
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171 | /* needs to stay in sync with gdm-slave */ |
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172 | static char * |
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173 | _get_primary_user_session_id (GdmUserManager *manager, |
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174 | GdmUser *user) |
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175 | { |
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176 | gboolean res; |
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177 | gboolean can_activate_sessions; |
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178 | GError *error; |
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179 | GList *sessions; |
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180 | GList *l; |
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181 | char *primary_ssid; |
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182 | |
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183 | if (manager->priv->seat_id == NULL || manager->priv->seat_id[0] == '\0') { |
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184 | g_debug ("GdmUserManager: display seat id is not set; can't switch sessions"); |
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185 | return NULL; |
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186 | } |
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187 | |
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188 | primary_ssid = NULL; |
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189 | sessions = NULL; |
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190 | |
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191 | g_debug ("GdmUserManager: checking if seat can activate sessions"); |
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192 | |
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193 | error = NULL; |
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194 | res = dbus_g_proxy_call (manager->priv->seat_proxy, |
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195 | "CanActivateSessions", |
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196 | &error, |
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197 | G_TYPE_INVALID, |
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198 | G_TYPE_BOOLEAN, &can_activate_sessions, |
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199 | G_TYPE_INVALID); |
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200 | if (! res) { |
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201 | if (error != NULL) { |
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202 | g_warning ("unable to determine if seat can activate sessions: %s", |
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203 | error->message); |
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204 | g_error_free (error); |
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205 | } else { |
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206 | g_warning ("unable to determine if seat can activate sessions"); |
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207 | } |
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208 | goto out; |
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209 | } |
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210 | |
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211 | if (! can_activate_sessions) { |
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212 | g_debug ("GdmUserManager: seat is unable to activate sessions"); |
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213 | goto out; |
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214 | } |
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215 | |
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216 | sessions = gdm_user_get_sessions (user); |
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217 | if (sessions == NULL) { |
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218 | g_warning ("unable to determine sessions for user: %s", |
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219 | gdm_user_get_user_name (user)); |
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220 | goto out; |
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221 | } |
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222 | |
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223 | for (l = sessions; l != NULL; l = l->next) { |
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224 | const char *ssid; |
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225 | |
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226 | ssid = l->data; |
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227 | |
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228 | /* FIXME: better way to choose? */ |
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229 | if (ssid != NULL) { |
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230 | primary_ssid = g_strdup (ssid); |
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231 | break; |
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232 | } |
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233 | } |
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234 | |
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235 | out: |
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236 | |
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237 | return primary_ssid; |
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238 | } |
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239 | |
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240 | static gboolean |
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241 | activate_session_id (GdmUserManager *manager, |
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242 | const char *seat_id, |
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243 | const char *session_id) |
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244 | { |
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245 | DBusError local_error; |
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246 | DBusMessage *message; |
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247 | DBusMessage *reply; |
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248 | gboolean ret; |
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249 | |
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250 | ret = FALSE; |
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251 | reply = NULL; |
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252 | |
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253 | dbus_error_init (&local_error); |
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254 | message = dbus_message_new_method_call ("org.freedesktop.ConsoleKit", |
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255 | seat_id, |
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256 | "org.freedesktop.ConsoleKit.Seat", |
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257 | "ActivateSession"); |
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258 | if (message == NULL) { |
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259 | goto out; |
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260 | } |
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261 | |
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262 | if (! dbus_message_append_args (message, |
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263 | DBUS_TYPE_OBJECT_PATH, &session_id, |
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264 | DBUS_TYPE_INVALID)) { |
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265 | goto out; |
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266 | } |
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267 | |
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268 | |
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269 | dbus_error_init (&local_error); |
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270 | reply = dbus_connection_send_with_reply_and_block (dbus_g_connection_get_connection (manager->priv->connection), |
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271 | message, |
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272 | -1, |
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273 | &local_error); |
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274 | if (reply == NULL) { |
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275 | if (dbus_error_is_set (&local_error)) { |
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276 | g_warning ("Unable to activate session: %s", local_error.message); |
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277 | dbus_error_free (&local_error); |
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278 | goto out; |
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279 | } |
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280 | } |
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281 | |
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282 | ret = TRUE; |
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283 | out: |
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284 | if (message != NULL) { |
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285 | dbus_message_unref (message); |
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286 | } |
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287 | if (reply != NULL) { |
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288 | dbus_message_unref (reply); |
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289 | } |
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290 | |
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291 | return ret; |
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292 | } |
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293 | |
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294 | static gboolean |
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295 | session_is_login_window (GdmUserManager *manager, |
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296 | const char *session_id) |
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297 | { |
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298 | DBusGProxy *proxy; |
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299 | GError *error; |
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300 | gboolean res; |
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301 | gboolean ret; |
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302 | char *session_type; |
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303 | |
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304 | ret = FALSE; |
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305 | |
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306 | proxy = dbus_g_proxy_new_for_name (manager->priv->connection, |
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307 | CK_NAME, |
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308 | session_id, |
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309 | CK_SESSION_INTERFACE); |
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310 | if (proxy == NULL) { |
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311 | g_warning ("Failed to connect to the ConsoleKit seat object"); |
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312 | goto out; |
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313 | } |
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314 | |
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315 | session_type = NULL; |
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316 | error = NULL; |
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317 | res = dbus_g_proxy_call (proxy, |
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318 | "GetSessionType", |
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319 | &error, |
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320 | G_TYPE_INVALID, |
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321 | G_TYPE_STRING, &session_type, |
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322 | G_TYPE_INVALID); |
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323 | if (! res) { |
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324 | if (error != NULL) { |
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325 | g_debug ("Failed to identify the session type: %s", error->message); |
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326 | g_error_free (error); |
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327 | } else { |
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328 | g_debug ("Failed to identify the session type"); |
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329 | } |
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330 | goto out; |
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331 | } |
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332 | |
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333 | if (session_type == NULL || session_type[0] == '\0' || strcmp (session_type, "LoginWindow") != 0) { |
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334 | goto out; |
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335 | } |
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336 | |
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337 | ret = TRUE; |
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338 | |
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339 | out: |
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340 | if (proxy != NULL) { |
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341 | g_object_unref (proxy); |
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342 | } |
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343 | |
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344 | return ret; |
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345 | } |
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346 | |
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347 | static char * |
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348 | _get_login_window_session_id (GdmUserManager *manager) |
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349 | { |
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350 | gboolean res; |
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351 | gboolean can_activate_sessions; |
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352 | GError *error; |
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353 | GPtrArray *sessions; |
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354 | char *primary_ssid; |
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355 | int i; |
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356 | |
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357 | if (manager->priv->seat_id == NULL || manager->priv->seat_id[0] == '\0') { |
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358 | g_debug ("GdmUserManager: display seat id is not set; can't switch sessions"); |
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359 | return NULL; |
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360 | } |
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361 | |
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362 | primary_ssid = NULL; |
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363 | sessions = NULL; |
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364 | |
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365 | g_debug ("GdmSlave: checking if seat can activate sessions"); |
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366 | |
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367 | error = NULL; |
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368 | res = dbus_g_proxy_call (manager->priv->seat_proxy, |
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369 | "CanActivateSessions", |
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370 | &error, |
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371 | G_TYPE_INVALID, |
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372 | G_TYPE_BOOLEAN, &can_activate_sessions, |
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373 | G_TYPE_INVALID); |
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374 | if (! res) { |
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375 | if (error != NULL) { |
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376 | g_warning ("unable to determine if seat can activate sessions: %s", |
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377 | error->message); |
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378 | g_error_free (error); |
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379 | } else { |
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380 | g_warning ("unable to determine if seat can activate sessions"); |
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381 | } |
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382 | goto out; |
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383 | } |
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384 | |
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385 | if (! can_activate_sessions) { |
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386 | g_debug ("GdmSlave: seat is unable to activate sessions"); |
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387 | goto out; |
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388 | } |
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389 | |
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390 | error = NULL; |
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391 | res = dbus_g_proxy_call (manager->priv->seat_proxy, |
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392 | "GetSessions", |
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393 | &error, |
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394 | G_TYPE_INVALID, |
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395 | dbus_g_type_get_collection ("GPtrArray", DBUS_TYPE_G_OBJECT_PATH), &sessions, |
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396 | G_TYPE_INVALID); |
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397 | if (! res) { |
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398 | if (error != NULL) { |
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399 | g_warning ("unable to determine sessions for user: %s", |
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400 | error->message); |
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401 | g_error_free (error); |
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402 | } else { |
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403 | g_warning ("unable to determine sessions for user"); |
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404 | } |
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405 | goto out; |
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406 | } |
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407 | |
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408 | for (i = 0; i < sessions->len; i++) { |
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409 | char *ssid; |
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410 | |
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411 | ssid = g_ptr_array_index (sessions, i); |
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412 | |
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413 | if (session_is_login_window (manager, ssid)) { |
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414 | primary_ssid = g_strdup (ssid); |
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415 | break; |
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416 | } |
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417 | } |
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418 | g_ptr_array_foreach (sessions, (GFunc)g_free, NULL); |
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419 | g_ptr_array_free (sessions, TRUE); |
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420 | |
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421 | out: |
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422 | |
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423 | return primary_ssid; |
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424 | } |
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425 | |
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426 | gboolean |
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427 | gdm_user_manager_goto_login_session (GdmUserManager *manager) |
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428 | { |
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429 | gboolean ret; |
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430 | gboolean res; |
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431 | char *ssid; |
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432 | |
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433 | g_return_val_if_fail (GDM_IS_USER_MANAGER (manager), FALSE); |
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434 | |
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435 | ret = FALSE; |
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436 | |
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437 | /* First look for any existing LoginWindow sessions on the seat. |
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438 | If none are found, create a new one. */ |
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439 | |
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440 | ssid = _get_login_window_session_id (manager); |
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441 | if (ssid != NULL) { |
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442 | res = activate_session_id (manager, manager->priv->seat_id, ssid); |
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443 | if (res) { |
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444 | ret = TRUE; |
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445 | } |
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446 | } |
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447 | |
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448 | if (! ret) { |
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449 | res = start_new_login_session (manager); |
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450 | if (res) { |
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451 | ret = TRUE; |
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452 | } |
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453 | } |
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454 | |
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455 | return ret; |
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456 | } |
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457 | |
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458 | gboolean |
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459 | gdm_user_manager_activate_user_session (GdmUserManager *manager, |
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460 | GdmUser *user) |
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461 | { |
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462 | gboolean ret; |
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463 | char *ssid; |
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464 | gboolean res; |
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465 | |
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466 | g_return_val_if_fail (GDM_IS_USER_MANAGER (manager), FALSE); |
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467 | g_return_val_if_fail (GDM_IS_USER (user), FALSE); |
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468 | |
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469 | ret = FALSE; |
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470 | |
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471 | ssid = _get_primary_user_session_id (manager, user); |
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472 | if (ssid == NULL) { |
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473 | goto out; |
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474 | } |
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475 | |
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476 | res = activate_session_id (manager, manager->priv->seat_id, ssid); |
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477 | if (! res) { |
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478 | g_debug ("GdmUserManager: unable to activate session: %s", ssid); |
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479 | goto out; |
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480 | } |
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481 | |
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482 | ret = TRUE; |
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483 | out: |
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484 | return ret; |
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485 | } |
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486 | |
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487 | static void |
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488 | on_user_sessions_changed (GdmUser *user, |
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489 | GdmUserManager *manager) |
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490 | { |
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491 | guint nsessions; |
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492 | |
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493 | nsessions = gdm_user_get_num_sessions (user); |
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494 | |
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495 | g_debug ("GdmUserManager: sessions changed user=%s num=%d", |
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496 | gdm_user_get_user_name (user), |
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497 | nsessions); |
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498 | |
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499 | /* only signal on zero and one */ |
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500 | if (nsessions > 1) { |
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501 | return; |
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502 | } |
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503 | |
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504 | g_signal_emit (manager, signals [USER_IS_LOGGED_IN_CHANGED], 0, user); |
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505 | } |
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506 | |
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507 | static void |
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508 | on_user_icon_changed (GdmUser *user, |
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509 | GdmUserManager *manager) |
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510 | { |
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511 | g_debug ("GdmUserManager: user icon changed"); |
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512 | } |
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513 | |
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514 | static char * |
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515 | get_seat_id_for_session (DBusGConnection *connection, |
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516 | const char *session_id) |
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517 | { |
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518 | DBusGProxy *proxy; |
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519 | GError *error; |
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520 | char *seat_id; |
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521 | gboolean res; |
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522 | |
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523 | proxy = NULL; |
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524 | seat_id = NULL; |
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525 | |
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526 | proxy = dbus_g_proxy_new_for_name (connection, |
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527 | CK_NAME, |
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528 | session_id, |
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529 | CK_SESSION_INTERFACE); |
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530 | if (proxy == NULL) { |
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531 | g_warning ("Failed to connect to the ConsoleKit session object"); |
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532 | goto out; |
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533 | } |
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534 | |
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535 | error = NULL; |
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536 | res = dbus_g_proxy_call (proxy, |
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537 | "GetSeatId", |
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538 | &error, |
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539 | G_TYPE_INVALID, |
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540 | DBUS_TYPE_G_OBJECT_PATH, &seat_id, |
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541 | G_TYPE_INVALID); |
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542 | if (! res) { |
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543 | if (error != NULL) { |
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544 | g_debug ("Failed to identify the current seat: %s", error->message); |
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545 | g_error_free (error); |
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546 | } else { |
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547 | g_debug ("Failed to identify the current seat"); |
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548 | } |
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549 | } |
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550 | out: |
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551 | if (proxy != NULL) { |
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552 | g_object_unref (proxy); |
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553 | } |
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554 | |
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555 | return seat_id; |
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556 | } |
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557 | |
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558 | static char * |
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559 | get_x11_display_for_session (DBusGConnection *connection, |
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560 | const char *session_id) |
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561 | { |
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562 | DBusGProxy *proxy; |
---|
563 | GError *error; |
---|
564 | char *x11_display; |
---|
565 | gboolean res; |
---|
566 | |
---|
567 | proxy = NULL; |
---|
568 | x11_display = NULL; |
---|
569 | |
---|
570 | proxy = dbus_g_proxy_new_for_name (connection, |
---|
571 | CK_NAME, |
---|
572 | session_id, |
---|
573 | CK_SESSION_INTERFACE); |
---|
574 | if (proxy == NULL) { |
---|
575 | g_warning ("Failed to connect to the ConsoleKit session object"); |
---|
576 | goto out; |
---|
577 | } |
---|
578 | |
---|
579 | error = NULL; |
---|
580 | res = dbus_g_proxy_call (proxy, |
---|
581 | "GetX11Display", |
---|
582 | &error, |
---|
583 | G_TYPE_INVALID, |
---|
584 | G_TYPE_STRING, &x11_display, |
---|
585 | G_TYPE_INVALID); |
---|
586 | if (! res) { |
---|
587 | if (error != NULL) { |
---|
588 | g_debug ("Failed to identify the x11 display: %s", error->message); |
---|
589 | g_error_free (error); |
---|
590 | } else { |
---|
591 | g_debug ("Failed to identify the x11 display"); |
---|
592 | } |
---|
593 | } |
---|
594 | out: |
---|
595 | if (proxy != NULL) { |
---|
596 | g_object_unref (proxy); |
---|
597 | } |
---|
598 | |
---|
599 | return x11_display; |
---|
600 | } |
---|
601 | |
---|
602 | static gboolean |
---|
603 | maybe_add_session_for_user (GdmUserManager *manager, |
---|
604 | GdmUser *user, |
---|
605 | const char *ssid) |
---|
606 | { |
---|
607 | char *sid; |
---|
608 | char *x11_display; |
---|
609 | gboolean ret; |
---|
610 | |
---|
611 | ret = FALSE; |
---|
612 | sid = NULL; |
---|
613 | x11_display = NULL; |
---|
614 | |
---|
615 | /* skip if on another seat */ |
---|
616 | sid = get_seat_id_for_session (manager->priv->connection, ssid); |
---|
617 | if (sid == NULL |
---|
618 | || manager->priv->seat_id == NULL |
---|
619 | || strcmp (sid, manager->priv->seat_id) != 0) { |
---|
620 | g_debug ("GdmUserManager: not adding session on other seat: %s", ssid); |
---|
621 | goto out; |
---|
622 | } |
---|
623 | |
---|
624 | /* skip if doesn't have an x11 display */ |
---|
625 | x11_display = get_x11_display_for_session (manager->priv->connection, ssid); |
---|
626 | if (x11_display == NULL || x11_display[0] == '\0') { |
---|
627 | g_debug ("GdmUserManager: not adding session without a x11 display: %s", ssid); |
---|
628 | goto out; |
---|
629 | } |
---|
630 | |
---|
631 | if (g_hash_table_lookup (manager->priv->exclusions, gdm_user_get_user_name (user))) { |
---|
632 | g_debug ("GdmUserManager: excluding user '%s'", gdm_user_get_user_name (user)); |
---|
633 | goto out; |
---|
634 | } |
---|
635 | |
---|
636 | g_hash_table_insert (manager->priv->sessions, |
---|
637 | g_strdup (ssid), |
---|
638 | g_strdup (gdm_user_get_user_name (user))); |
---|
639 | |
---|
640 | _gdm_user_add_session (user, ssid); |
---|
641 | g_debug ("GdmUserManager: added session for user: %s", gdm_user_get_user_name (user)); |
---|
642 | |
---|
643 | ret = TRUE; |
---|
644 | |
---|
645 | out: |
---|
646 | g_free (sid); |
---|
647 | g_free (x11_display); |
---|
648 | |
---|
649 | return ret; |
---|
650 | } |
---|
651 | |
---|
652 | static void |
---|
653 | add_sessions_for_user (GdmUserManager *manager, |
---|
654 | GdmUser *user) |
---|
655 | { |
---|
656 | DBusGProxy *proxy; |
---|
657 | GError *error; |
---|
658 | gboolean res; |
---|
659 | guint32 uid; |
---|
660 | GPtrArray *sessions; |
---|
661 | int i; |
---|
662 | |
---|
663 | proxy = dbus_g_proxy_new_for_name (manager->priv->connection, |
---|
664 | CK_NAME, |
---|
665 | CK_MANAGER_PATH, |
---|
666 | CK_MANAGER_INTERFACE); |
---|
667 | if (proxy == NULL) { |
---|
668 | g_warning ("Failed to connect to the ConsoleKit manager object"); |
---|
669 | goto out; |
---|
670 | } |
---|
671 | |
---|
672 | uid = gdm_user_get_uid (user); |
---|
673 | |
---|
674 | g_debug ("Getting list of sessions for user %u", uid); |
---|
675 | |
---|
676 | error = NULL; |
---|
677 | res = dbus_g_proxy_call (proxy, |
---|
678 | "GetSessionsForUnixUser", |
---|
679 | &error, |
---|
680 | G_TYPE_UINT, uid, |
---|
681 | G_TYPE_INVALID, |
---|
682 | dbus_g_type_get_collection ("GPtrArray", DBUS_TYPE_G_OBJECT_PATH), |
---|
683 | &sessions, |
---|
684 | G_TYPE_INVALID); |
---|
685 | if (! res) { |
---|
686 | if (error != NULL) { |
---|
687 | g_debug ("Failed to find sessions for user: %s", error->message); |
---|
688 | g_error_free (error); |
---|
689 | } else { |
---|
690 | g_debug ("Failed to find sessions for user"); |
---|
691 | } |
---|
692 | goto out; |
---|
693 | } |
---|
694 | |
---|
695 | g_debug ("Found %d sessions for user %s", sessions->len, gdm_user_get_user_name (user)); |
---|
696 | |
---|
697 | for (i = 0; i < sessions->len; i++) { |
---|
698 | char *ssid; |
---|
699 | |
---|
700 | ssid = g_ptr_array_index (sessions, i); |
---|
701 | maybe_add_session_for_user (manager, user, ssid); |
---|
702 | } |
---|
703 | |
---|
704 | g_ptr_array_foreach (sessions, (GFunc)g_free, NULL); |
---|
705 | g_ptr_array_free (sessions, TRUE); |
---|
706 | |
---|
707 | out: |
---|
708 | if (proxy != NULL) { |
---|
709 | g_object_unref (proxy); |
---|
710 | } |
---|
711 | } |
---|
712 | |
---|
713 | static GdmUser * |
---|
714 | create_user (GdmUserManager *manager) |
---|
715 | { |
---|
716 | GdmUser *user; |
---|
717 | |
---|
718 | user = g_object_new (GDM_TYPE_USER, "manager", manager, NULL); |
---|
719 | g_signal_connect (user, |
---|
720 | "sessions-changed", |
---|
721 | G_CALLBACK (on_user_sessions_changed), |
---|
722 | manager); |
---|
723 | g_signal_connect (user, |
---|
724 | "icon-changed", |
---|
725 | G_CALLBACK (on_user_icon_changed), |
---|
726 | manager); |
---|
727 | return user; |
---|
728 | } |
---|
729 | |
---|
730 | static gint |
---|
731 | match_real_name_cmpfunc (gconstpointer a, |
---|
732 | gconstpointer b) |
---|
733 | { |
---|
734 | if (a == b) |
---|
735 | return -1; |
---|
736 | |
---|
737 | return g_strcmp0 (gdm_user_get_real_name ((GdmUser *) a), |
---|
738 | gdm_user_get_real_name ((GdmUser *) b)); |
---|
739 | } |
---|
740 | |
---|
741 | static gboolean |
---|
742 | match_real_name_hrfunc (gpointer key, |
---|
743 | gpointer value, |
---|
744 | gpointer user_data) |
---|
745 | { |
---|
746 | return (g_strcmp0 (user_data, gdm_user_get_real_name (value)) == 0); |
---|
747 | } |
---|
748 | |
---|
749 | static void |
---|
750 | add_user (GdmUserManager *manager, |
---|
751 | GdmUser *user) |
---|
752 | { |
---|
753 | GdmUser *dup; |
---|
754 | |
---|
755 | add_sessions_for_user (manager, user); |
---|
756 | dup = g_hash_table_find (manager->priv->users, |
---|
757 | match_real_name_hrfunc, |
---|
758 | (char *) gdm_user_get_real_name (user)); |
---|
759 | if (dup != NULL) { |
---|
760 | _gdm_user_show_full_display_name (user); |
---|
761 | _gdm_user_show_full_display_name (dup); |
---|
762 | } |
---|
763 | g_hash_table_insert (manager->priv->users, |
---|
764 | g_strdup (gdm_user_get_user_name (user)), |
---|
765 | g_object_ref (user)); |
---|
766 | |
---|
767 | g_signal_emit (manager, signals[USER_ADDED], 0, user); |
---|
768 | } |
---|
769 | |
---|
770 | static GdmUser * |
---|
771 | add_new_user_for_pwent (GdmUserManager *manager, |
---|
772 | struct passwd *pwent) |
---|
773 | { |
---|
774 | GdmUser *user; |
---|
775 | |
---|
776 | g_debug ("Creating new user"); |
---|
777 | |
---|
778 | user = create_user (manager); |
---|
779 | _gdm_user_update (user, pwent); |
---|
780 | |
---|
781 | add_user (manager, user); |
---|
782 | |
---|
783 | return user; |
---|
784 | } |
---|
785 | |
---|
786 | static char * |
---|
787 | get_current_seat_id (DBusGConnection *connection) |
---|
788 | { |
---|
789 | DBusGProxy *proxy; |
---|
790 | GError *error; |
---|
791 | char *session_id; |
---|
792 | char *seat_id; |
---|
793 | gboolean res; |
---|
794 | |
---|
795 | proxy = NULL; |
---|
796 | session_id = NULL; |
---|
797 | seat_id = NULL; |
---|
798 | |
---|
799 | proxy = dbus_g_proxy_new_for_name (connection, |
---|
800 | CK_NAME, |
---|
801 | CK_MANAGER_PATH, |
---|
802 | CK_MANAGER_INTERFACE); |
---|
803 | if (proxy == NULL) { |
---|
804 | g_warning ("Failed to connect to the ConsoleKit manager object"); |
---|
805 | goto out; |
---|
806 | } |
---|
807 | |
---|
808 | error = NULL; |
---|
809 | res = dbus_g_proxy_call (proxy, |
---|
810 | "GetCurrentSession", |
---|
811 | &error, |
---|
812 | G_TYPE_INVALID, |
---|
813 | DBUS_TYPE_G_OBJECT_PATH, |
---|
814 | &session_id, |
---|
815 | G_TYPE_INVALID); |
---|
816 | if (! res) { |
---|
817 | if (error != NULL) { |
---|
818 | g_debug ("Failed to identify the current session: %s", error->message); |
---|
819 | g_error_free (error); |
---|
820 | } else { |
---|
821 | g_debug ("Failed to identify the current session"); |
---|
822 | } |
---|
823 | goto out; |
---|
824 | } |
---|
825 | |
---|
826 | seat_id = get_seat_id_for_session (connection, session_id); |
---|
827 | |
---|
828 | out: |
---|
829 | if (proxy != NULL) { |
---|
830 | g_object_unref (proxy); |
---|
831 | } |
---|
832 | g_free (session_id); |
---|
833 | |
---|
834 | return seat_id; |
---|
835 | } |
---|
836 | |
---|
837 | static gboolean |
---|
838 | get_uid_from_session_id (GdmUserManager *manager, |
---|
839 | const char *session_id, |
---|
840 | uid_t *uidp) |
---|
841 | { |
---|
842 | DBusGProxy *proxy; |
---|
843 | GError *error; |
---|
844 | guint uid; |
---|
845 | gboolean res; |
---|
846 | |
---|
847 | proxy = dbus_g_proxy_new_for_name (manager->priv->connection, |
---|
848 | CK_NAME, |
---|
849 | session_id, |
---|
850 | CK_SESSION_INTERFACE); |
---|
851 | if (proxy == NULL) { |
---|
852 | g_warning ("Failed to connect to the ConsoleKit session object"); |
---|
853 | return FALSE; |
---|
854 | } |
---|
855 | |
---|
856 | error = NULL; |
---|
857 | res = dbus_g_proxy_call (proxy, |
---|
858 | "GetUnixUser", |
---|
859 | &error, |
---|
860 | G_TYPE_INVALID, |
---|
861 | G_TYPE_UINT, &uid, |
---|
862 | G_TYPE_INVALID); |
---|
863 | g_object_unref (proxy); |
---|
864 | |
---|
865 | if (! res) { |
---|
866 | if (error != NULL) { |
---|
867 | g_warning ("Failed to query the session: %s", error->message); |
---|
868 | g_error_free (error); |
---|
869 | } else { |
---|
870 | g_warning ("Failed to query the session"); |
---|
871 | } |
---|
872 | return FALSE; |
---|
873 | } |
---|
874 | |
---|
875 | if (uidp != NULL) { |
---|
876 | *uidp = (uid_t) uid; |
---|
877 | } |
---|
878 | |
---|
879 | return TRUE; |
---|
880 | } |
---|
881 | |
---|
882 | static void |
---|
883 | seat_session_added (DBusGProxy *seat_proxy, |
---|
884 | const char *session_id, |
---|
885 | GdmUserManager *manager) |
---|
886 | { |
---|
887 | uid_t uid; |
---|
888 | gboolean res; |
---|
889 | struct passwd *pwent; |
---|
890 | GdmUser *user; |
---|
891 | gboolean is_new; |
---|
892 | |
---|
893 | g_debug ("Session added: %s", session_id); |
---|
894 | |
---|
895 | res = get_uid_from_session_id (manager, session_id, &uid); |
---|
896 | if (! res) { |
---|
897 | g_warning ("Unable to lookup user for session"); |
---|
898 | return; |
---|
899 | } |
---|
900 | |
---|
901 | errno = 0; |
---|
902 | pwent = getpwuid (uid); |
---|
903 | if (pwent == NULL) { |
---|
904 | g_warning ("Unable to lookup user id %d: %s", (int)uid, g_strerror (errno)); |
---|
905 | return; |
---|
906 | } |
---|
907 | |
---|
908 | /* check exclusions up front */ |
---|
909 | if (g_hash_table_lookup (manager->priv->exclusions, pwent->pw_name)) { |
---|
910 | g_debug ("GdmUserManager: excluding user '%s'", pwent->pw_name); |
---|
911 | return; |
---|
912 | } |
---|
913 | |
---|
914 | user = g_hash_table_lookup (manager->priv->users, pwent->pw_name); |
---|
915 | if (user == NULL) { |
---|
916 | g_debug ("Creating new user"); |
---|
917 | |
---|
918 | user = create_user (manager); |
---|
919 | _gdm_user_update (user, pwent); |
---|
920 | is_new = TRUE; |
---|
921 | } else { |
---|
922 | is_new = FALSE; |
---|
923 | } |
---|
924 | |
---|
925 | res = maybe_add_session_for_user (manager, user, session_id); |
---|
926 | |
---|
927 | /* only add the user if we added a session */ |
---|
928 | if (is_new) { |
---|
929 | if (res) { |
---|
930 | add_user (manager, user); |
---|
931 | } else { |
---|
932 | g_object_unref (user); |
---|
933 | } |
---|
934 | } |
---|
935 | } |
---|
936 | |
---|
937 | static void |
---|
938 | seat_session_removed (DBusGProxy *seat_proxy, |
---|
939 | const char *session_id, |
---|
940 | GdmUserManager *manager) |
---|
941 | { |
---|
942 | GdmUser *user; |
---|
943 | char *username; |
---|
944 | |
---|
945 | g_debug ("Session removed: %s", session_id); |
---|
946 | |
---|
947 | /* since the session object may already be gone |
---|
948 | * we can't query CK directly */ |
---|
949 | |
---|
950 | username = g_hash_table_lookup (manager->priv->sessions, session_id); |
---|
951 | if (username == NULL) { |
---|
952 | return; |
---|
953 | } |
---|
954 | |
---|
955 | user = g_hash_table_lookup (manager->priv->users, username); |
---|
956 | if (user == NULL) { |
---|
957 | /* nothing to do */ |
---|
958 | return; |
---|
959 | } |
---|
960 | |
---|
961 | g_debug ("GdmUserManager: Session removed for %s", username); |
---|
962 | _gdm_user_remove_session (user, session_id); |
---|
963 | } |
---|
964 | |
---|
965 | static void |
---|
966 | on_proxy_destroy (DBusGProxy *proxy, |
---|
967 | GdmUserManager *manager) |
---|
968 | { |
---|
969 | g_debug ("GdmUserManager: seat proxy destroyed"); |
---|
970 | |
---|
971 | manager->priv->seat_proxy = NULL; |
---|
972 | } |
---|
973 | |
---|
974 | static void |
---|
975 | get_seat_proxy (GdmUserManager *manager) |
---|
976 | { |
---|
977 | DBusGProxy *proxy; |
---|
978 | GError *error; |
---|
979 | |
---|
980 | g_assert (manager->priv->seat_proxy == NULL); |
---|
981 | |
---|
982 | error = NULL; |
---|
983 | manager->priv->connection = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error); |
---|
984 | if (manager->priv->connection == NULL) { |
---|
985 | if (error != NULL) { |
---|
986 | g_warning ("Failed to connect to the D-Bus daemon: %s", error->message); |
---|
987 | g_error_free (error); |
---|
988 | } else { |
---|
989 | g_warning ("Failed to connect to the D-Bus daemon"); |
---|
990 | } |
---|
991 | return; |
---|
992 | } |
---|
993 | |
---|
994 | manager->priv->seat_id = get_current_seat_id (manager->priv->connection); |
---|
995 | if (manager->priv->seat_id == NULL) { |
---|
996 | return; |
---|
997 | } |
---|
998 | |
---|
999 | g_debug ("GdmUserManager: Found current seat: %s", manager->priv->seat_id); |
---|
1000 | |
---|
1001 | error = NULL; |
---|
1002 | proxy = dbus_g_proxy_new_for_name_owner (manager->priv->connection, |
---|
1003 | CK_NAME, |
---|
1004 | manager->priv->seat_id, |
---|
1005 | CK_SEAT_INTERFACE, |
---|
1006 | &error); |
---|
1007 | |
---|
1008 | if (proxy == NULL) { |
---|
1009 | if (error != NULL) { |
---|
1010 | g_warning ("Failed to connect to the ConsoleKit seat object: %s", |
---|
1011 | error->message); |
---|
1012 | g_error_free (error); |
---|
1013 | } else { |
---|
1014 | g_warning ("Failed to connect to the ConsoleKit seat object"); |
---|
1015 | } |
---|
1016 | return; |
---|
1017 | } |
---|
1018 | |
---|
1019 | g_signal_connect (proxy, "destroy", G_CALLBACK (on_proxy_destroy), manager); |
---|
1020 | |
---|
1021 | dbus_g_proxy_add_signal (proxy, |
---|
1022 | "SessionAdded", |
---|
1023 | DBUS_TYPE_G_OBJECT_PATH, |
---|
1024 | G_TYPE_INVALID); |
---|
1025 | dbus_g_proxy_add_signal (proxy, |
---|
1026 | "SessionRemoved", |
---|
1027 | DBUS_TYPE_G_OBJECT_PATH, |
---|
1028 | G_TYPE_INVALID); |
---|
1029 | dbus_g_proxy_connect_signal (proxy, |
---|
1030 | "SessionAdded", |
---|
1031 | G_CALLBACK (seat_session_added), |
---|
1032 | manager, |
---|
1033 | NULL); |
---|
1034 | dbus_g_proxy_connect_signal (proxy, |
---|
1035 | "SessionRemoved", |
---|
1036 | G_CALLBACK (seat_session_removed), |
---|
1037 | manager, |
---|
1038 | NULL); |
---|
1039 | manager->priv->seat_proxy = proxy; |
---|
1040 | |
---|
1041 | } |
---|
1042 | |
---|
1043 | /** |
---|
1044 | * gdm_manager_get_user: |
---|
1045 | * @manager: the manager to query. |
---|
1046 | * @username: the login name of the user to get. |
---|
1047 | * |
---|
1048 | * Retrieves a pointer to the #GdmUser object for the login named @username |
---|
1049 | * from @manager. This pointer is not a reference, and should not be released. |
---|
1050 | * |
---|
1051 | * Returns: a pointer to a #GdmUser object. |
---|
1052 | **/ |
---|
1053 | GdmUser * |
---|
1054 | gdm_user_manager_get_user (GdmUserManager *manager, |
---|
1055 | const char *username) |
---|
1056 | { |
---|
1057 | GdmUser *user; |
---|
1058 | |
---|
1059 | g_return_val_if_fail (GDM_IS_USER_MANAGER (manager), NULL); |
---|
1060 | g_return_val_if_fail (username != NULL && username[0] != '\0', NULL); |
---|
1061 | |
---|
1062 | user = g_hash_table_lookup (manager->priv->users, username); |
---|
1063 | |
---|
1064 | if (user == NULL) { |
---|
1065 | struct passwd *pwent; |
---|
1066 | |
---|
1067 | pwent = getpwnam (username); |
---|
1068 | |
---|
1069 | if (pwent != NULL) { |
---|
1070 | user = add_new_user_for_pwent (manager, pwent); |
---|
1071 | } |
---|
1072 | } |
---|
1073 | |
---|
1074 | return user; |
---|
1075 | } |
---|
1076 | |
---|
1077 | GdmUser * |
---|
1078 | gdm_user_manager_get_user_by_uid (GdmUserManager *manager, |
---|
1079 | uid_t uid) |
---|
1080 | { |
---|
1081 | GdmUser *user; |
---|
1082 | struct passwd *pwent; |
---|
1083 | |
---|
1084 | g_return_val_if_fail (GDM_IS_USER_MANAGER (manager), NULL); |
---|
1085 | |
---|
1086 | pwent = getpwuid (uid); |
---|
1087 | if (pwent == NULL) { |
---|
1088 | g_warning ("GdmUserManager: unable to lookup uid %d", (int)uid); |
---|
1089 | return NULL; |
---|
1090 | } |
---|
1091 | |
---|
1092 | user = g_hash_table_lookup (manager->priv->users, pwent->pw_name); |
---|
1093 | |
---|
1094 | if (user == NULL) { |
---|
1095 | user = add_new_user_for_pwent (manager, pwent); |
---|
1096 | } |
---|
1097 | |
---|
1098 | return user; |
---|
1099 | } |
---|
1100 | |
---|
1101 | static void |
---|
1102 | listify_hash_values_hfunc (gpointer key, |
---|
1103 | gpointer value, |
---|
1104 | gpointer user_data) |
---|
1105 | { |
---|
1106 | GSList **list = user_data; |
---|
1107 | |
---|
1108 | *list = g_slist_prepend (*list, value); |
---|
1109 | } |
---|
1110 | |
---|
1111 | GSList * |
---|
1112 | gdm_user_manager_list_users (GdmUserManager *manager) |
---|
1113 | { |
---|
1114 | GSList *retval; |
---|
1115 | |
---|
1116 | g_return_val_if_fail (GDM_IS_USER_MANAGER (manager), NULL); |
---|
1117 | |
---|
1118 | retval = NULL; |
---|
1119 | g_hash_table_foreach (manager->priv->users, listify_hash_values_hfunc, &retval); |
---|
1120 | |
---|
1121 | return g_slist_sort (retval, (GCompareFunc) gdm_user_collate); |
---|
1122 | } |
---|
1123 | |
---|
1124 | static gboolean |
---|
1125 | parse_value_as_ulong (const char *value, |
---|
1126 | gulong *ulongval) |
---|
1127 | { |
---|
1128 | char *end_of_valid_long; |
---|
1129 | glong long_value; |
---|
1130 | gulong ulong_value; |
---|
1131 | |
---|
1132 | errno = 0; |
---|
1133 | long_value = strtol (value, &end_of_valid_long, 10); |
---|
1134 | |
---|
1135 | if (*value == '\0' || *end_of_valid_long != '\0') { |
---|
1136 | return FALSE; |
---|
1137 | } |
---|
1138 | |
---|
1139 | ulong_value = long_value; |
---|
1140 | if (ulong_value != long_value || errno == ERANGE) { |
---|
1141 | return FALSE; |
---|
1142 | } |
---|
1143 | |
---|
1144 | *ulongval = ulong_value; |
---|
1145 | |
---|
1146 | return TRUE; |
---|
1147 | } |
---|
1148 | |
---|
1149 | static gboolean |
---|
1150 | parse_ck_history_line (const char *line, |
---|
1151 | char **user_namep, |
---|
1152 | gulong *frequencyp) |
---|
1153 | { |
---|
1154 | GRegex *re; |
---|
1155 | GMatchInfo *match_info; |
---|
1156 | gboolean res; |
---|
1157 | gboolean ret; |
---|
1158 | GError *error; |
---|
1159 | |
---|
1160 | ret = FALSE; |
---|
1161 | re = NULL; |
---|
1162 | match_info = NULL; |
---|
1163 | |
---|
1164 | error = NULL; |
---|
1165 | re = g_regex_new ("(?P<username>[0-9a-zA-Z]+)[ ]+(?P<frequency>[0-9]+)", 0, 0, &error); |
---|
1166 | if (re == NULL) { |
---|
1167 | if (error != NULL) { |
---|
1168 | g_critical ("%s", error->message); |
---|
1169 | } else { |
---|
1170 | g_critical ("Error in regex call"); |
---|
1171 | } |
---|
1172 | goto out; |
---|
1173 | } |
---|
1174 | |
---|
1175 | g_regex_match (re, line, 0, &match_info); |
---|
1176 | |
---|
1177 | res = g_match_info_matches (match_info); |
---|
1178 | if (! res) { |
---|
1179 | g_warning ("Unable to parse history: %s", line); |
---|
1180 | goto out; |
---|
1181 | } |
---|
1182 | |
---|
1183 | if (user_namep != NULL) { |
---|
1184 | *user_namep = g_match_info_fetch_named (match_info, "username"); |
---|
1185 | } |
---|
1186 | |
---|
1187 | if (frequencyp != NULL) { |
---|
1188 | char *freq; |
---|
1189 | freq = g_match_info_fetch_named (match_info, "frequency"); |
---|
1190 | res = parse_value_as_ulong (freq, frequencyp); |
---|
1191 | g_free (freq); |
---|
1192 | if (! res) { |
---|
1193 | goto out; |
---|
1194 | } |
---|
1195 | } |
---|
1196 | |
---|
1197 | ret = TRUE; |
---|
1198 | |
---|
1199 | out: |
---|
1200 | if (match_info != NULL) { |
---|
1201 | g_match_info_free (match_info); |
---|
1202 | } |
---|
1203 | if (re != NULL) { |
---|
1204 | g_regex_unref (re); |
---|
1205 | } |
---|
1206 | return ret; |
---|
1207 | } |
---|
1208 | |
---|
1209 | static void |
---|
1210 | process_ck_history_line (GdmUserManager *manager, |
---|
1211 | const char *line) |
---|
1212 | { |
---|
1213 | gboolean res; |
---|
1214 | char *username; |
---|
1215 | gulong frequency; |
---|
1216 | GdmUser *user; |
---|
1217 | |
---|
1218 | frequency = 0; |
---|
1219 | username = NULL; |
---|
1220 | res = parse_ck_history_line (line, &username, &frequency); |
---|
1221 | if (! res) { |
---|
1222 | return; |
---|
1223 | } |
---|
1224 | |
---|
1225 | if (g_hash_table_lookup (manager->priv->exclusions, username)) { |
---|
1226 | g_debug ("GdmUserManager: excluding user '%s'", username); |
---|
1227 | g_free (username); |
---|
1228 | return; |
---|
1229 | } |
---|
1230 | |
---|
1231 | user = gdm_user_manager_get_user (manager, username); |
---|
1232 | if (user == NULL) { |
---|
1233 | g_debug ("GdmUserManager: unable to lookup user '%s'", username); |
---|
1234 | g_free (username); |
---|
1235 | return; |
---|
1236 | } |
---|
1237 | |
---|
1238 | g_object_set (user, "login-frequency", frequency, NULL); |
---|
1239 | g_signal_emit (manager, signals [USER_LOGIN_FREQUENCY_CHANGED], 0, user); |
---|
1240 | g_free (username); |
---|
1241 | } |
---|
1242 | |
---|
1243 | static gboolean |
---|
1244 | ck_history_watch (GIOChannel *source, |
---|
1245 | GIOCondition condition, |
---|
1246 | GdmUserManager *manager) |
---|
1247 | { |
---|
1248 | GIOStatus status; |
---|
1249 | gboolean done = FALSE; |
---|
1250 | |
---|
1251 | g_return_val_if_fail (manager != NULL, FALSE); |
---|
1252 | |
---|
1253 | if (condition & G_IO_IN) { |
---|
1254 | char *str; |
---|
1255 | GError *error; |
---|
1256 | |
---|
1257 | error = NULL; |
---|
1258 | status = g_io_channel_read_line (source, &str, NULL, NULL, &error); |
---|
1259 | if (error != NULL) { |
---|
1260 | g_warning ("GdmUserManager: unable to read line: %s", error->message); |
---|
1261 | g_error_free (error); |
---|
1262 | } |
---|
1263 | |
---|
1264 | if (status == G_IO_STATUS_NORMAL) { |
---|
1265 | g_debug ("GdmUserManager: history output: %s", str); |
---|
1266 | process_ck_history_line (manager, str); |
---|
1267 | } else if (status == G_IO_STATUS_EOF) { |
---|
1268 | done = TRUE; |
---|
1269 | } |
---|
1270 | |
---|
1271 | g_free (str); |
---|
1272 | } else if (condition & G_IO_HUP) { |
---|
1273 | done = TRUE; |
---|
1274 | } |
---|
1275 | |
---|
1276 | if (done) { |
---|
1277 | g_signal_emit (G_OBJECT (manager), signals[USERS_LOADED], 0); |
---|
1278 | |
---|
1279 | manager->priv->ck_history_id = 0; |
---|
1280 | return FALSE; |
---|
1281 | } |
---|
1282 | |
---|
1283 | return TRUE; |
---|
1284 | } |
---|
1285 | |
---|
1286 | static void |
---|
1287 | reload_ck_history (GdmUserManager *manager) |
---|
1288 | { |
---|
1289 | char *command; |
---|
1290 | const char *seat_id; |
---|
1291 | GError *error; |
---|
1292 | gboolean res; |
---|
1293 | char **argv; |
---|
1294 | int standard_out; |
---|
1295 | GIOChannel *channel; |
---|
1296 | |
---|
1297 | seat_id = NULL; |
---|
1298 | if (manager->priv->seat_id != NULL |
---|
1299 | && g_str_has_prefix (manager->priv->seat_id, "/org/freedesktop/ConsoleKit/")) { |
---|
1300 | |
---|
1301 | seat_id = manager->priv->seat_id + strlen ("/org/freedesktop/ConsoleKit/"); |
---|
1302 | } |
---|
1303 | |
---|
1304 | if (seat_id == NULL) { |
---|
1305 | g_warning ("Unable to find users: no seat-id found"); |
---|
1306 | return; |
---|
1307 | } |
---|
1308 | |
---|
1309 | command = g_strdup_printf ("ck-history --frequent --seat='%s' --session-type=''", |
---|
1310 | seat_id); |
---|
1311 | g_debug ("GdmUserManager: running '%s'", command); |
---|
1312 | error = NULL; |
---|
1313 | if (! g_shell_parse_argv (command, NULL, &argv, &error)) { |
---|
1314 | if (error != NULL) { |
---|
1315 | g_warning ("Could not parse command: %s", error->message); |
---|
1316 | g_error_free (error); |
---|
1317 | } else { |
---|
1318 | g_warning ("Could not parse command"); |
---|
1319 | } |
---|
1320 | goto out; |
---|
1321 | } |
---|
1322 | |
---|
1323 | error = NULL; |
---|
1324 | res = g_spawn_async_with_pipes (NULL, |
---|
1325 | argv, |
---|
1326 | NULL, |
---|
1327 | G_SPAWN_SEARCH_PATH, |
---|
1328 | NULL, |
---|
1329 | NULL, |
---|
1330 | NULL, /* pid */ |
---|
1331 | NULL, |
---|
1332 | &standard_out, |
---|
1333 | NULL, |
---|
1334 | &error); |
---|
1335 | g_strfreev (argv); |
---|
1336 | if (! res) { |
---|
1337 | if (error != NULL) { |
---|
1338 | g_warning ("Unable to run ck-history: %s", error->message); |
---|
1339 | g_error_free (error); |
---|
1340 | } else { |
---|
1341 | g_warning ("Unable to run ck-history"); |
---|
1342 | } |
---|
1343 | goto out; |
---|
1344 | } |
---|
1345 | |
---|
1346 | channel = g_io_channel_unix_new (standard_out); |
---|
1347 | g_io_channel_set_close_on_unref (channel, TRUE); |
---|
1348 | g_io_channel_set_flags (channel, |
---|
1349 | g_io_channel_get_flags (channel) | G_IO_FLAG_NONBLOCK, |
---|
1350 | NULL); |
---|
1351 | manager->priv->ck_history_id = g_io_add_watch (channel, |
---|
1352 | G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL, |
---|
1353 | (GIOFunc)ck_history_watch, |
---|
1354 | manager); |
---|
1355 | g_io_channel_unref (channel); |
---|
1356 | |
---|
1357 | out: |
---|
1358 | g_free (command); |
---|
1359 | } |
---|
1360 | |
---|
1361 | static void |
---|
1362 | reload_passwd (GdmUserManager *manager) |
---|
1363 | { |
---|
1364 | struct passwd *pwent; |
---|
1365 | GSList *old_users; |
---|
1366 | GSList *new_users; |
---|
1367 | GSList *list; |
---|
1368 | GSList *dup; |
---|
1369 | FILE *fp; |
---|
1370 | |
---|
1371 | old_users = NULL; |
---|
1372 | new_users = NULL; |
---|
1373 | |
---|
1374 | errno = 0; |
---|
1375 | fp = fopen (PATH_PASSWD, "r"); |
---|
1376 | if (fp == NULL) { |
---|
1377 | g_warning ("Unable to open %s: %s", PATH_PASSWD, g_strerror (errno)); |
---|
1378 | goto out; |
---|
1379 | } |
---|
1380 | |
---|
1381 | g_hash_table_foreach (manager->priv->users, listify_hash_values_hfunc, &old_users); |
---|
1382 | g_slist_foreach (old_users, (GFunc) g_object_ref, NULL); |
---|
1383 | |
---|
1384 | /* Make sure we keep users who are logged in no matter what. */ |
---|
1385 | for (list = old_users; list; list = list->next) { |
---|
1386 | if (gdm_user_get_num_sessions (list->data) > 0) { |
---|
1387 | g_object_freeze_notify (G_OBJECT (list->data)); |
---|
1388 | _gdm_user_show_short_display_name (list->data); |
---|
1389 | new_users = g_slist_prepend (new_users, g_object_ref (list->data)); |
---|
1390 | } |
---|
1391 | } |
---|
1392 | |
---|
1393 | for (pwent = fgetpwent (fp); pwent != NULL; pwent = fgetpwent (fp)) { |
---|
1394 | GdmUser *user; |
---|
1395 | |
---|
1396 | user = NULL; |
---|
1397 | |
---|
1398 | /* Skip users below MinimalUID... */ |
---|
1399 | if (pwent->pw_uid < DEFAULT_MINIMAL_UID) { |
---|
1400 | continue; |
---|
1401 | } |
---|
1402 | |
---|
1403 | /* ...And users w/ invalid shells... */ |
---|
1404 | if (pwent->pw_shell == NULL || |
---|
1405 | !g_hash_table_lookup (manager->priv->shells, pwent->pw_shell)) { |
---|
1406 | g_debug ("GdmUserManager: skipping user with bad shell: %s", pwent->pw_name); |
---|
1407 | continue; |
---|
1408 | } |
---|
1409 | |
---|
1410 | /* ...And explicitly excluded users */ |
---|
1411 | if (g_hash_table_lookup (manager->priv->exclusions, pwent->pw_name)) { |
---|
1412 | g_debug ("GdmUserManager: explicitly skipping user: %s", pwent->pw_name); |
---|
1413 | continue; |
---|
1414 | } |
---|
1415 | |
---|
1416 | user = g_hash_table_lookup (manager->priv->users, pwent->pw_name); |
---|
1417 | |
---|
1418 | /* Update users already in the *new* list */ |
---|
1419 | if (g_slist_find (new_users, user)) { |
---|
1420 | _gdm_user_update (user, pwent); |
---|
1421 | continue; |
---|
1422 | } |
---|
1423 | |
---|
1424 | if (user == NULL) { |
---|
1425 | user = create_user (manager); |
---|
1426 | } else { |
---|
1427 | g_object_ref (user); |
---|
1428 | } |
---|
1429 | |
---|
1430 | /* Freeze & update users not already in the new list */ |
---|
1431 | g_object_freeze_notify (G_OBJECT (user)); |
---|
1432 | _gdm_user_update (user, pwent); |
---|
1433 | |
---|
1434 | new_users = g_slist_prepend (new_users, user); |
---|
1435 | } |
---|
1436 | |
---|
1437 | /* Go through and handle removed users */ |
---|
1438 | for (list = old_users; list; list = list->next) { |
---|
1439 | if (! g_slist_find (new_users, list->data)) { |
---|
1440 | g_signal_emit (manager, signals[USER_REMOVED], 0, list->data); |
---|
1441 | g_hash_table_remove (manager->priv->users, |
---|
1442 | gdm_user_get_user_name (list->data)); |
---|
1443 | } |
---|
1444 | } |
---|
1445 | |
---|
1446 | /* Go through and handle added users or update display names */ |
---|
1447 | for (list = new_users; list; list = list->next) { |
---|
1448 | if (g_slist_find (old_users, list->data)) { |
---|
1449 | dup = g_slist_find_custom (new_users, |
---|
1450 | list->data, |
---|
1451 | match_real_name_cmpfunc); |
---|
1452 | if (dup != NULL) { |
---|
1453 | _gdm_user_show_full_display_name (list->data); |
---|
1454 | _gdm_user_show_full_display_name (dup->data); |
---|
1455 | } |
---|
1456 | } else { |
---|
1457 | add_user (manager, list->data); |
---|
1458 | } |
---|
1459 | } |
---|
1460 | |
---|
1461 | out: |
---|
1462 | /* Cleanup */ |
---|
1463 | |
---|
1464 | fclose (fp); |
---|
1465 | |
---|
1466 | g_slist_foreach (new_users, (GFunc) g_object_thaw_notify, NULL); |
---|
1467 | g_slist_foreach (new_users, (GFunc) g_object_unref, NULL); |
---|
1468 | g_slist_free (new_users); |
---|
1469 | |
---|
1470 | g_slist_foreach (old_users, (GFunc) g_object_unref, NULL); |
---|
1471 | g_slist_free (old_users); |
---|
1472 | } |
---|
1473 | |
---|
1474 | static void |
---|
1475 | reload_users (GdmUserManager *manager) |
---|
1476 | { |
---|
1477 | reload_ck_history (manager); |
---|
1478 | reload_passwd (manager); |
---|
1479 | } |
---|
1480 | |
---|
1481 | static gboolean |
---|
1482 | reload_users_timeout (GdmUserManager *manager) |
---|
1483 | { |
---|
1484 | reload_users (manager); |
---|
1485 | manager->priv->reload_id = 0; |
---|
1486 | |
---|
1487 | return FALSE; |
---|
1488 | } |
---|
1489 | |
---|
1490 | static void |
---|
1491 | queue_reload_users (GdmUserManager *manager) |
---|
1492 | { |
---|
1493 | if (manager->priv->reload_id > 0) { |
---|
1494 | return; |
---|
1495 | } |
---|
1496 | |
---|
1497 | g_signal_emit (G_OBJECT (manager), signals[LOADING_USERS], 0); |
---|
1498 | manager->priv->reload_id = g_idle_add ((GSourceFunc)reload_users_timeout, manager); |
---|
1499 | } |
---|
1500 | |
---|
1501 | static void |
---|
1502 | reload_shells (GdmUserManager *manager) |
---|
1503 | { |
---|
1504 | char *shell; |
---|
1505 | |
---|
1506 | setusershell (); |
---|
1507 | |
---|
1508 | g_hash_table_remove_all (manager->priv->shells); |
---|
1509 | for (shell = getusershell (); shell != NULL; shell = getusershell ()) { |
---|
1510 | /* skip well known not-real shells */ |
---|
1511 | if (shell == NULL |
---|
1512 | || strcmp (shell, "/sbin/nologin") == 0 |
---|
1513 | || strcmp (shell, "/bin/false") == 0) { |
---|
1514 | g_debug ("GdmUserManager: skipping shell %s", shell); |
---|
1515 | continue; |
---|
1516 | } |
---|
1517 | g_hash_table_insert (manager->priv->shells, |
---|
1518 | g_strdup (shell), |
---|
1519 | GUINT_TO_POINTER (TRUE)); |
---|
1520 | } |
---|
1521 | |
---|
1522 | endusershell (); |
---|
1523 | } |
---|
1524 | |
---|
1525 | static void |
---|
1526 | on_shells_monitor_changed (GFileMonitor *monitor, |
---|
1527 | GFile *file, |
---|
1528 | GFile *other_file, |
---|
1529 | GFileMonitorEvent event_type, |
---|
1530 | GdmUserManager *manager) |
---|
1531 | { |
---|
1532 | if (event_type != G_FILE_MONITOR_EVENT_CHANGED && |
---|
1533 | event_type != G_FILE_MONITOR_EVENT_CREATED) { |
---|
1534 | return; |
---|
1535 | } |
---|
1536 | |
---|
1537 | reload_shells (manager); |
---|
1538 | reload_passwd (manager); |
---|
1539 | } |
---|
1540 | |
---|
1541 | static void |
---|
1542 | on_passwd_monitor_changed (GFileMonitor *monitor, |
---|
1543 | GFile *file, |
---|
1544 | GFile *other_file, |
---|
1545 | GFileMonitorEvent event_type, |
---|
1546 | GdmUserManager *manager) |
---|
1547 | { |
---|
1548 | if (event_type != G_FILE_MONITOR_EVENT_CHANGED && |
---|
1549 | event_type != G_FILE_MONITOR_EVENT_CREATED) { |
---|
1550 | return; |
---|
1551 | } |
---|
1552 | |
---|
1553 | reload_passwd (manager); |
---|
1554 | } |
---|
1555 | |
---|
1556 | static void |
---|
1557 | gdm_user_manager_class_init (GdmUserManagerClass *klass) |
---|
1558 | { |
---|
1559 | GObjectClass *object_class = G_OBJECT_CLASS (klass); |
---|
1560 | |
---|
1561 | object_class->finalize = gdm_user_manager_finalize; |
---|
1562 | |
---|
1563 | signals [LOADING_USERS] = |
---|
1564 | g_signal_new ("loading-users", |
---|
1565 | G_TYPE_FROM_CLASS (klass), |
---|
1566 | G_SIGNAL_RUN_LAST, |
---|
1567 | G_STRUCT_OFFSET (GdmUserManagerClass, loading_users), |
---|
1568 | NULL, NULL, |
---|
1569 | g_cclosure_marshal_VOID__VOID, |
---|
1570 | G_TYPE_NONE, 0); |
---|
1571 | signals [USERS_LOADED] = |
---|
1572 | g_signal_new ("users-loaded", |
---|
1573 | G_TYPE_FROM_CLASS (klass), |
---|
1574 | G_SIGNAL_RUN_LAST, |
---|
1575 | G_STRUCT_OFFSET (GdmUserManagerClass, users_loaded), |
---|
1576 | NULL, NULL, |
---|
1577 | g_cclosure_marshal_VOID__VOID, |
---|
1578 | G_TYPE_NONE, 0); |
---|
1579 | signals [USER_ADDED] = |
---|
1580 | g_signal_new ("user-added", |
---|
1581 | G_TYPE_FROM_CLASS (klass), |
---|
1582 | G_SIGNAL_RUN_LAST, |
---|
1583 | G_STRUCT_OFFSET (GdmUserManagerClass, user_added), |
---|
1584 | NULL, NULL, |
---|
1585 | g_cclosure_marshal_VOID__OBJECT, |
---|
1586 | G_TYPE_NONE, 1, GDM_TYPE_USER); |
---|
1587 | signals [USER_REMOVED] = |
---|
1588 | g_signal_new ("user-removed", |
---|
1589 | G_TYPE_FROM_CLASS (klass), |
---|
1590 | G_SIGNAL_RUN_LAST, |
---|
1591 | G_STRUCT_OFFSET (GdmUserManagerClass, user_removed), |
---|
1592 | NULL, NULL, |
---|
1593 | g_cclosure_marshal_VOID__OBJECT, |
---|
1594 | G_TYPE_NONE, 1, GDM_TYPE_USER); |
---|
1595 | signals [USER_IS_LOGGED_IN_CHANGED] = |
---|
1596 | g_signal_new ("user-is-logged-in-changed", |
---|
1597 | G_TYPE_FROM_CLASS (klass), |
---|
1598 | G_SIGNAL_RUN_LAST, |
---|
1599 | G_STRUCT_OFFSET (GdmUserManagerClass, user_is_logged_in_changed), |
---|
1600 | NULL, NULL, |
---|
1601 | g_cclosure_marshal_VOID__OBJECT, |
---|
1602 | G_TYPE_NONE, 1, GDM_TYPE_USER); |
---|
1603 | signals [USER_LOGIN_FREQUENCY_CHANGED] = |
---|
1604 | g_signal_new ("user-login-frequency-changed", |
---|
1605 | G_TYPE_FROM_CLASS (klass), |
---|
1606 | G_SIGNAL_RUN_LAST, |
---|
1607 | G_STRUCT_OFFSET (GdmUserManagerClass, user_login_frequency_changed), |
---|
1608 | NULL, NULL, |
---|
1609 | g_cclosure_marshal_VOID__OBJECT, |
---|
1610 | G_TYPE_NONE, 1, GDM_TYPE_USER); |
---|
1611 | |
---|
1612 | g_type_class_add_private (klass, sizeof (GdmUserManagerPrivate)); |
---|
1613 | } |
---|
1614 | |
---|
1615 | static void |
---|
1616 | gdm_user_manager_init (GdmUserManager *manager) |
---|
1617 | { |
---|
1618 | int i; |
---|
1619 | GFile *file; |
---|
1620 | GError *error; |
---|
1621 | const char *exclude_default[] = DEFAULT_EXCLUDE; |
---|
1622 | |
---|
1623 | manager->priv = GDM_USER_MANAGER_GET_PRIVATE (manager); |
---|
1624 | |
---|
1625 | /* sessions */ |
---|
1626 | manager->priv->sessions = g_hash_table_new_full (g_str_hash, |
---|
1627 | g_str_equal, |
---|
1628 | g_free, |
---|
1629 | g_free); |
---|
1630 | |
---|
1631 | /* exclusions */ |
---|
1632 | manager->priv->exclusions = g_hash_table_new_full (g_str_hash, |
---|
1633 | g_str_equal, |
---|
1634 | g_free, |
---|
1635 | NULL); |
---|
1636 | for (i = 0; exclude_default[i] != NULL; i++) { |
---|
1637 | g_hash_table_insert (manager->priv->exclusions, |
---|
1638 | g_strdup (exclude_default [i]), |
---|
1639 | GUINT_TO_POINTER (TRUE)); |
---|
1640 | } |
---|
1641 | |
---|
1642 | /* /etc/shells */ |
---|
1643 | manager->priv->shells = g_hash_table_new_full (g_str_hash, |
---|
1644 | g_str_equal, |
---|
1645 | g_free, |
---|
1646 | NULL); |
---|
1647 | reload_shells (manager); |
---|
1648 | file = g_file_new_for_path (_PATH_SHELLS); |
---|
1649 | error = NULL; |
---|
1650 | manager->priv->shells_monitor = g_file_monitor_file (file, |
---|
1651 | G_FILE_MONITOR_NONE, |
---|
1652 | NULL, |
---|
1653 | &error); |
---|
1654 | if (manager->priv->shells_monitor != NULL) { |
---|
1655 | g_signal_connect (manager->priv->shells_monitor, |
---|
1656 | "changed", |
---|
1657 | G_CALLBACK (on_shells_monitor_changed), |
---|
1658 | manager); |
---|
1659 | } else { |
---|
1660 | if (error != NULL) { |
---|
1661 | g_warning ("Unable to monitor %s: %s", _PATH_SHELLS, error->message); |
---|
1662 | g_error_free (error); |
---|
1663 | } else { |
---|
1664 | g_warning ("Unable to monitor %s", _PATH_SHELLS); |
---|
1665 | } |
---|
1666 | } |
---|
1667 | g_object_unref (file); |
---|
1668 | |
---|
1669 | /* /etc/passwd */ |
---|
1670 | manager->priv->users = g_hash_table_new_full (g_str_hash, |
---|
1671 | g_str_equal, |
---|
1672 | g_free, |
---|
1673 | (GDestroyNotify) g_object_run_dispose); |
---|
1674 | file = g_file_new_for_path (PATH_PASSWD); |
---|
1675 | manager->priv->passwd_monitor = g_file_monitor_file (file, |
---|
1676 | G_FILE_MONITOR_NONE, |
---|
1677 | NULL, |
---|
1678 | &error); |
---|
1679 | if (manager->priv->passwd_monitor != NULL) { |
---|
1680 | g_signal_connect (manager->priv->passwd_monitor, |
---|
1681 | "changed", |
---|
1682 | G_CALLBACK (on_passwd_monitor_changed), |
---|
1683 | manager); |
---|
1684 | } else { |
---|
1685 | if (error != NULL) { |
---|
1686 | g_warning ("Unable to monitor %s: %s", PATH_PASSWD, error->message); |
---|
1687 | g_error_free (error); |
---|
1688 | } else { |
---|
1689 | g_warning ("Unable to monitor %s", PATH_PASSWD); |
---|
1690 | } |
---|
1691 | } |
---|
1692 | g_object_unref (file); |
---|
1693 | |
---|
1694 | |
---|
1695 | get_seat_proxy (manager); |
---|
1696 | |
---|
1697 | queue_reload_users (manager); |
---|
1698 | |
---|
1699 | manager->priv->users_dirty = FALSE; |
---|
1700 | } |
---|
1701 | |
---|
1702 | static void |
---|
1703 | gdm_user_manager_finalize (GObject *object) |
---|
1704 | { |
---|
1705 | GdmUserManager *manager; |
---|
1706 | |
---|
1707 | g_return_if_fail (object != NULL); |
---|
1708 | g_return_if_fail (GDM_IS_USER_MANAGER (object)); |
---|
1709 | |
---|
1710 | manager = GDM_USER_MANAGER (object); |
---|
1711 | |
---|
1712 | g_return_if_fail (manager->priv != NULL); |
---|
1713 | |
---|
1714 | if (manager->priv->seat_proxy != NULL) { |
---|
1715 | g_object_unref (manager->priv->seat_proxy); |
---|
1716 | } |
---|
1717 | |
---|
1718 | if (manager->priv->ck_history_id != 0) { |
---|
1719 | g_source_remove (manager->priv->ck_history_id); |
---|
1720 | manager->priv->ck_history_id = 0; |
---|
1721 | } |
---|
1722 | |
---|
1723 | if (manager->priv->reload_id > 0) { |
---|
1724 | g_source_remove (manager->priv->reload_id); |
---|
1725 | manager->priv->reload_id = 0; |
---|
1726 | } |
---|
1727 | |
---|
1728 | g_hash_table_destroy (manager->priv->sessions); |
---|
1729 | |
---|
1730 | g_file_monitor_cancel (manager->priv->passwd_monitor); |
---|
1731 | g_hash_table_destroy (manager->priv->users); |
---|
1732 | |
---|
1733 | g_file_monitor_cancel (manager->priv->shells_monitor); |
---|
1734 | g_hash_table_destroy (manager->priv->shells); |
---|
1735 | |
---|
1736 | g_free (manager->priv->seat_id); |
---|
1737 | |
---|
1738 | G_OBJECT_CLASS (gdm_user_manager_parent_class)->finalize (object); |
---|
1739 | } |
---|
1740 | |
---|
1741 | GdmUserManager * |
---|
1742 | gdm_user_manager_ref_default (void) |
---|
1743 | { |
---|
1744 | if (user_manager_object != NULL) { |
---|
1745 | g_object_ref (user_manager_object); |
---|
1746 | } else { |
---|
1747 | user_manager_object = g_object_new (GDM_TYPE_USER_MANAGER, NULL); |
---|
1748 | g_object_add_weak_pointer (user_manager_object, |
---|
1749 | (gpointer *) &user_manager_object); |
---|
1750 | } |
---|
1751 | |
---|
1752 | return GDM_USER_MANAGER (user_manager_object); |
---|
1753 | } |
---|