1 | /*
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2 | * Copyright (C) 2010 Robert Ancell.
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3 | * Author: Robert Ancell <robert.ancell@canonical.com>
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4 | *
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5 | * This library is free software; you can redistribute it and/or modify it under
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6 | * the terms of the GNU Lesser General Public License as published by the Free
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7 | * Software Foundation; either version 2 or version 3 of the License.
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8 | * See http://www.gnu.org/copyleft/lgpl.html the full text of the license.
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9 | */
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10 |
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11 | /*
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12 | * Oracle LGPL Disclaimer: For the avoidance of doubt, except that if any license choice
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13 | * other than GPL or LGPL is available it will apply instead, Oracle elects to use only
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14 | * the Lesser General Public License version 2.1 (LGPLv2) at this time for any software where
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15 | * a choice of LGPL license versions is made available with the language indicating
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16 | * that LGPLv2 or any later version may be used, or where a choice of which version
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17 | * of the LGPL is applied is otherwise unspecified.
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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 <string.h>
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24 | #include <security/pam_appl.h>
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25 |
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26 | #include "lightdm/greeter.h"
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27 |
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28 | enum {
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29 | PROP_0,
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30 | PROP_DEFAULT_SESSION_HINT,
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31 | PROP_HIDE_USERS_HINT,
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32 | PROP_SHOW_MANUAL_LOGIN_HINT,
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33 | PROP_SHOW_REMOTE_LOGIN_HINT,
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34 | PROP_LOCK_HINT,
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35 | PROP_HAS_GUEST_ACCOUNT_HINT,
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36 | PROP_SELECT_USER_HINT,
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37 | PROP_SELECT_GUEST_HINT,
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38 | PROP_AUTOLOGIN_USER_HINT,
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39 | PROP_AUTOLOGIN_GUEST_HINT,
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40 | PROP_AUTOLOGIN_TIMEOUT_HINT,
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41 | PROP_AUTHENTICATION_USER,
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42 | PROP_IN_AUTHENTICATION,
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43 | PROP_IS_AUTHENTICATED,
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44 | };
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45 |
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46 | enum {
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47 | SHOW_PROMPT,
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48 | SHOW_MESSAGE,
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49 | AUTHENTICATION_COMPLETE,
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50 | AUTOLOGIN_TIMER_EXPIRED,
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51 | LAST_SIGNAL
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52 | };
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53 | static guint signals[LAST_SIGNAL] = { 0 };
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54 |
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55 | typedef struct
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56 | {
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57 | gboolean connected;
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58 |
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59 | GIOChannel *to_server_channel, *from_server_channel;
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60 | guint8 *read_buffer;
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61 | gsize n_read;
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62 |
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63 | gsize n_responses_waiting;
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64 | GList *responses_received;
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65 |
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66 | GHashTable *hints;
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67 | guint autologin_timeout;
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68 |
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69 | gchar *authentication_user;
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70 | gboolean in_authentication;
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71 | gboolean is_authenticated;
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72 | guint32 authenticate_sequence_number;
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73 | gboolean cancelling_authentication;
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74 | } LightDMGreeterPrivate;
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75 |
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76 | G_DEFINE_TYPE (LightDMGreeter, lightdm_greeter, G_TYPE_OBJECT);
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77 |
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78 | #define GET_PRIVATE(obj) G_TYPE_INSTANCE_GET_PRIVATE ((obj), LIGHTDM_TYPE_GREETER, LightDMGreeterPrivate)
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79 |
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80 | #define HEADER_SIZE 8
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81 | #define MAX_MESSAGE_LENGTH 1024
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82 |
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83 | /* Messages from the greeter to the server */
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84 | typedef enum
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85 | {
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86 | GREETER_MESSAGE_CONNECT = 0,
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87 | GREETER_MESSAGE_AUTHENTICATE,
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88 | GREETER_MESSAGE_AUTHENTICATE_AS_GUEST,
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89 | GREETER_MESSAGE_CONTINUE_AUTHENTICATION,
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90 | GREETER_MESSAGE_START_SESSION,
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91 | GREETER_MESSAGE_CANCEL_AUTHENTICATION,
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92 | GREETER_MESSAGE_SET_LANGUAGE,
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93 | GREETER_MESSAGE_AUTHENTICATE_REMOTE
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94 | } GreeterMessage;
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95 |
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96 | /* Messages from the server to the greeter */
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97 | typedef enum
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98 | {
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99 | SERVER_MESSAGE_CONNECTED = 0,
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100 | SERVER_MESSAGE_PROMPT_AUTHENTICATION,
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101 | SERVER_MESSAGE_END_AUTHENTICATION,
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102 | SERVER_MESSAGE_SESSION_RESULT
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103 | } ServerMessage;
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104 |
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105 | /**
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106 | * lightdm_greeter_new:
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107 | *
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108 | * Create a new greeter.
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109 | *
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110 | * Return value: the new #LightDMGreeter
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111 | **/
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112 | LightDMGreeter *
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113 | lightdm_greeter_new ()
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114 | {
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115 | return g_object_new (LIGHTDM_TYPE_GREETER, NULL);
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116 | }
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117 |
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118 | static gboolean
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119 | timed_login_cb (gpointer data)
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120 | {
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121 | LightDMGreeter *greeter = data;
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122 | LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
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123 |
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124 | priv->autologin_timeout = 0;
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125 | g_signal_emit (G_OBJECT (greeter), signals[AUTOLOGIN_TIMER_EXPIRED], 0);
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126 |
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127 | return FALSE;
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128 | }
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129 |
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130 | static guint32
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131 | int_length ()
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132 | {
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133 | return 4;
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134 | }
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135 |
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136 | static void
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137 | write_int (guint8 *buffer, gint buffer_length, guint32 value, gsize *offset)
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138 | {
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139 | if (*offset + 4 >= buffer_length)
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140 | return;
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141 | buffer[*offset] = value >> 24;
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142 | buffer[*offset+1] = (value >> 16) & 0xFF;
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143 | buffer[*offset+2] = (value >> 8) & 0xFF;
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144 | buffer[*offset+3] = value & 0xFF;
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145 | *offset += 4;
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146 | }
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147 |
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148 | static void
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149 | write_string (guint8 *buffer, gint buffer_length, const gchar *value, gsize *offset)
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150 | {
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151 | gint length = 0;
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152 |
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153 | if (value)
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154 | length = strlen (value);
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155 | write_int (buffer, buffer_length, length, offset);
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156 | if (*offset + length >= buffer_length)
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157 | return;
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158 | memcpy (buffer + *offset, value, length);
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159 | *offset += length;
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160 | }
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161 |
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162 | static guint32
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163 | read_int (guint8 *message, gsize message_length, gsize *offset)
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164 | {
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165 | guint32 value;
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166 | guint8 *buffer;
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167 |
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168 | if (message_length - *offset < int_length ())
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169 | {
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170 | g_warning ("Not enough space for int, need %i, got %zi", int_length (), message_length - *offset);
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171 | return 0;
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172 | }
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173 |
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174 | buffer = message + *offset;
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175 | value = buffer[0] << 24 | buffer[1] << 16 | buffer[2] << 8 | buffer[3];
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176 | *offset += int_length ();
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177 |
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178 | return value;
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179 | }
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180 |
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181 | static gchar *
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182 | read_string (guint8 *message, gsize message_length, gsize *offset)
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183 | {
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184 | guint32 length;
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185 | gchar *value;
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186 |
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187 | length = read_int (message, message_length, offset);
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188 | if (message_length - *offset < length)
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189 | {
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190 | g_warning ("Not enough space for string, need %u, got %zu", length, message_length - *offset);
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191 | return g_strdup ("");
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192 | }
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193 |
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194 | value = g_malloc (sizeof (gchar) * (length + 1));
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195 | memcpy (value, message + *offset, length);
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196 | value[length] = '\0';
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197 | *offset += length;
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198 |
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199 | return value;
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200 | }
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201 |
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202 | static guint32
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203 | string_length (const gchar *value)
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204 | {
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205 | if (value)
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206 | return int_length () + strlen (value);
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207 | else
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208 | return int_length ();
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209 | }
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210 |
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211 | static void
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212 | write_header (guint8 *buffer, gint buffer_length, guint32 id, guint32 length, gsize *offset)
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213 | {
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214 | write_int (buffer, buffer_length, id, offset);
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215 | write_int (buffer, buffer_length, length, offset);
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216 | }
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217 |
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218 | static guint32
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219 | get_message_length (guint8 *message, gsize message_length)
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220 | {
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221 | gsize offset = 4;
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222 | return read_int (message, message_length, &offset);
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223 | }
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224 |
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225 | static void
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226 | write_message (LightDMGreeter *greeter, guint8 *message, gsize message_length)
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227 | {
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228 | LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
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229 | GIOStatus status;
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230 | GError *error = NULL;
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231 | guint32 stated_length;
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232 |
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233 | /* Double check that we're sending well-formed messages. If we say we're
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234 | sending more than we do, we end up DOS'ing lightdm as it waits for the
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235 | rest. If we say we're sending less than we do, we confuse the heck out
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236 | of lightdm, as it starts reading headers from the middle of our
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237 | messages. */
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238 | stated_length = HEADER_SIZE + get_message_length (message, message_length);
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239 | if (stated_length != message_length)
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240 | {
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241 | g_warning ("Refusing to write malformed packet to daemon: declared size is %u, but actual size is %zu", stated_length, message_length);
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242 | return;
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243 | }
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244 |
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245 | status = g_io_channel_write_chars (priv->to_server_channel, (gchar *) message, message_length, NULL, &error);
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246 | if (error)
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247 | g_warning ("Error writing to daemon: %s", error->message);
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248 | g_clear_error (&error);
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249 | if (status == G_IO_STATUS_NORMAL)
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250 | g_debug ("Wrote %zi bytes to daemon", message_length);
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251 | g_io_channel_flush (priv->to_server_channel, NULL);
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252 | }
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253 |
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254 | static void
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255 | handle_connected (LightDMGreeter *greeter, guint8 *message, gsize message_length, gsize *offset)
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256 | {
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257 | LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
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258 | gchar *version;
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259 | GString *hint_string;
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260 | int timeout;
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261 |
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262 | version = read_string (message, message_length, offset);
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263 | hint_string = g_string_new ("");
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264 | while (*offset < message_length)
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265 | {
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266 | gchar *name, *value;
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267 |
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268 | name = read_string (message, message_length, offset);
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269 | value = read_string (message, message_length, offset);
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270 | g_hash_table_insert (priv->hints, name, value);
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271 | g_string_append_printf (hint_string, " %s=%s", name, value);
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272 | }
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273 |
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274 | g_debug ("Connected version=%s%s", version, hint_string->str);
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275 | g_free (version);
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276 | g_string_free (hint_string, TRUE);
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277 |
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278 | /* Set timeout for default login */
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279 | timeout = lightdm_greeter_get_autologin_timeout_hint (greeter);
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280 | if (timeout)
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281 | {
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282 | g_debug ("Setting autologin timer for %d seconds", timeout);
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283 | priv->autologin_timeout = g_timeout_add (timeout * 1000, timed_login_cb, greeter);
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284 | }
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285 | }
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286 |
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287 | static void
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288 | handle_prompt_authentication (LightDMGreeter *greeter, guint8 *message, gsize message_length, gsize *offset)
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289 | {
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290 | LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
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291 | guint32 sequence_number, n_messages, i;
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292 | gchar *username;
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293 |
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294 | sequence_number = read_int (message, message_length, offset);
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295 | if (sequence_number != priv->authenticate_sequence_number)
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296 | {
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297 | g_debug ("Ignoring prompt authentication with invalid sequence number %d", sequence_number);
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298 | return;
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299 | }
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300 |
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301 | if (priv->cancelling_authentication)
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302 | {
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303 | g_debug ("Ignoring prompt authentication as waiting for it to cancel");
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304 | return;
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305 | }
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306 |
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307 | /* Update username */
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308 | username = read_string (message, message_length, offset);
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309 | if (strcmp (username, "") == 0)
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310 | {
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311 | g_free (username);
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312 | username = NULL;
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313 | }
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314 | g_free (priv->authentication_user);
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315 | priv->authentication_user = username;
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316 |
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317 | g_list_free_full (priv->responses_received, g_free);
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318 | priv->responses_received = NULL;
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319 | priv->n_responses_waiting = 0;
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320 |
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321 | n_messages = read_int (message, message_length, offset);
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322 | g_debug ("Prompt user with %d message(s)", n_messages);
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323 |
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324 | for (i = 0; i < n_messages; i++)
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325 | {
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326 | int style;
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327 | gchar *text;
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328 |
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329 | style = read_int (message, message_length, offset);
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330 | text = read_string (message, message_length, offset);
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331 |
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332 | // FIXME: Should stop on prompts?
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333 | switch (style)
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334 | {
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335 | case PAM_PROMPT_ECHO_OFF:
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336 | priv->n_responses_waiting++;
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337 | g_signal_emit (G_OBJECT (greeter), signals[SHOW_PROMPT], 0, text, LIGHTDM_PROMPT_TYPE_SECRET);
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338 | break;
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339 | case PAM_PROMPT_ECHO_ON:
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340 | priv->n_responses_waiting++;
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341 | g_signal_emit (G_OBJECT (greeter), signals[SHOW_PROMPT], 0, text, LIGHTDM_PROMPT_TYPE_QUESTION);
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342 | break;
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343 | case PAM_ERROR_MSG:
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344 | g_signal_emit (G_OBJECT (greeter), signals[SHOW_MESSAGE], 0, text, LIGHTDM_MESSAGE_TYPE_ERROR);
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345 | break;
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346 | case PAM_TEXT_INFO:
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347 | g_signal_emit (G_OBJECT (greeter), signals[SHOW_MESSAGE], 0, text, LIGHTDM_MESSAGE_TYPE_INFO);
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348 | break;
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349 | }
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350 |
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351 | g_free (text);
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352 | }
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353 | }
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354 |
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355 | static void
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356 | handle_end_authentication (LightDMGreeter *greeter, guint8 *message, gsize message_length, gsize *offset)
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357 | {
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358 | LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
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359 | guint32 sequence_number, return_code;
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360 | gchar *username;
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361 |
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362 | sequence_number = read_int (message, message_length, offset);
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363 |
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364 | if (sequence_number != priv->authenticate_sequence_number)
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365 | {
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366 | g_debug ("Ignoring end authentication with invalid sequence number %d", sequence_number);
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367 | return;
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368 | }
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369 |
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370 | username = read_string (message, message_length, offset);
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371 | return_code = read_int (message, message_length, offset);
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372 |
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373 | g_debug ("Authentication complete for user %s with return code %d", username, return_code);
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374 |
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375 | /* Update username */
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376 | if (strcmp (username, "") == 0)
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377 | {
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378 | g_free (username);
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379 | username = NULL;
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380 | }
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381 | g_free (priv->authentication_user);
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382 | priv->authentication_user = username;
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383 |
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384 | priv->cancelling_authentication = FALSE;
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385 | priv->is_authenticated = (return_code == 0);
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386 |
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387 | priv->in_authentication = FALSE;
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388 | g_signal_emit (G_OBJECT (greeter), signals[AUTHENTICATION_COMPLETE], 0);
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389 | }
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390 |
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391 | static guint8 *
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392 | read_message (LightDMGreeter *greeter, gsize *length, gboolean block)
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393 | {
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394 | LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
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395 | gsize n_to_read, n_read;
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396 | guint8 *buffer;
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397 | GError *error = NULL;
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398 |
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399 | /* Read the header, or the whole message if we already have that */
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400 | n_to_read = HEADER_SIZE;
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401 | if (priv->n_read >= HEADER_SIZE)
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402 | n_to_read += get_message_length (priv->read_buffer, priv->n_read);
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403 |
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404 | do
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405 | {
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406 | GIOStatus status;
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407 | status = g_io_channel_read_chars (priv->from_server_channel,
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408 | (gchar *) priv->read_buffer + priv->n_read,
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409 | n_to_read - priv->n_read,
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410 | &n_read,
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411 | &error);
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412 | if (error)
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413 | g_warning ("Error reading from server: %s", error->message);
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414 | g_clear_error (&error);
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415 | if (status != G_IO_STATUS_NORMAL)
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416 | break;
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417 |
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418 | g_debug ("Read %zi bytes from daemon", n_read);
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419 |
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420 | priv->n_read += n_read;
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421 | } while (priv->n_read < n_to_read && block);
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422 |
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423 | /* Stop if haven't got all the data we want */
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424 | if (priv->n_read != n_to_read)
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425 | return FALSE;
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426 |
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427 | /* If have header, rerun for content */
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428 | if (priv->n_read == HEADER_SIZE)
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429 | {
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430 | n_to_read = get_message_length (priv->read_buffer, priv->n_read);
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431 | if (n_to_read > 0)
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432 | {
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433 | priv->read_buffer = g_realloc (priv->read_buffer, HEADER_SIZE + n_to_read);
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434 | return read_message (greeter, length, block);
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435 | }
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436 | }
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437 |
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438 | buffer = priv->read_buffer;
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439 | *length = priv->n_read;
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440 |
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441 | priv->read_buffer = g_malloc (priv->n_read);
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442 | priv->n_read = 0;
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443 |
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444 | return buffer;
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445 | }
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446 |
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447 | static gboolean
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448 | from_server_cb (GIOChannel *source, GIOCondition condition, gpointer data)
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449 | {
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450 | LightDMGreeter *greeter = data;
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451 | guint8 *message;
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452 | gsize message_length, offset;
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453 | guint32 id;
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454 |
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455 | message = read_message (greeter, &message_length, FALSE);
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456 | if (!message)
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457 | return TRUE;
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458 |
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459 | offset = 0;
|
---|
460 | id = read_int (message, message_length, &offset);
|
---|
461 | read_int (message, message_length, &offset);
|
---|
462 | switch (id)
|
---|
463 | {
|
---|
464 | case SERVER_MESSAGE_PROMPT_AUTHENTICATION:
|
---|
465 | handle_prompt_authentication (greeter, message, message_length, &offset);
|
---|
466 | break;
|
---|
467 | case SERVER_MESSAGE_END_AUTHENTICATION:
|
---|
468 | handle_end_authentication (greeter, message, message_length, &offset);
|
---|
469 | break;
|
---|
470 | default:
|
---|
471 | g_warning ("Unknown message from server: %d", id);
|
---|
472 | break;
|
---|
473 | }
|
---|
474 | g_free (message);
|
---|
475 |
|
---|
476 | return TRUE;
|
---|
477 | }
|
---|
478 |
|
---|
479 | /**
|
---|
480 | * lightdm_greeter_connect_sync:
|
---|
481 | * @greeter: The greeter to connect
|
---|
482 | * @error: return location for a #GError, or %NULL
|
---|
483 | *
|
---|
484 | * Connects the greeter to the display manager. Will block until connected.
|
---|
485 | *
|
---|
486 | * Return value: #TRUE if successfully connected
|
---|
487 | **/
|
---|
488 | gboolean
|
---|
489 | lightdm_greeter_connect_sync (LightDMGreeter *greeter, GError **error)
|
---|
490 | {
|
---|
491 | LightDMGreeterPrivate *priv;
|
---|
492 | const gchar *fd;
|
---|
493 | guint8 message[MAX_MESSAGE_LENGTH];
|
---|
494 | guint8 *response;
|
---|
495 | gsize response_length, offset = 0;
|
---|
496 | guint32 id;
|
---|
497 |
|
---|
498 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
|
---|
499 |
|
---|
500 | priv = GET_PRIVATE (greeter);
|
---|
501 |
|
---|
502 | fd = g_getenv ("LIGHTDM_TO_SERVER_FD");
|
---|
503 | if (!fd)
|
---|
504 | {
|
---|
505 | g_warning ("No LIGHTDM_TO_SERVER_FD environment variable");
|
---|
506 | return FALSE;
|
---|
507 | }
|
---|
508 | priv->to_server_channel = g_io_channel_unix_new (atoi (fd));
|
---|
509 | g_io_channel_set_encoding (priv->to_server_channel, NULL, NULL);
|
---|
510 |
|
---|
511 | fd = g_getenv ("LIGHTDM_FROM_SERVER_FD");
|
---|
512 | if (!fd)
|
---|
513 | {
|
---|
514 | g_warning ("No LIGHTDM_FROM_SERVER_FD environment variable");
|
---|
515 | return FALSE;
|
---|
516 | }
|
---|
517 | priv->from_server_channel = g_io_channel_unix_new (atoi (fd));
|
---|
518 | g_io_channel_set_encoding (priv->from_server_channel, NULL, NULL);
|
---|
519 | g_io_add_watch (priv->from_server_channel, G_IO_IN, from_server_cb, greeter);
|
---|
520 |
|
---|
521 | g_debug ("Connecting to display manager...");
|
---|
522 | write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_CONNECT, string_length (VERSION), &offset);
|
---|
523 | write_string (message, MAX_MESSAGE_LENGTH, VERSION, &offset);
|
---|
524 | write_message (greeter, message, offset);
|
---|
525 |
|
---|
526 | response = read_message (greeter, &response_length, TRUE);
|
---|
527 | if (!response)
|
---|
528 | return FALSE;
|
---|
529 |
|
---|
530 | offset = 0;
|
---|
531 | id = read_int (response, response_length, &offset);
|
---|
532 | read_int (response, response_length, &offset);
|
---|
533 | if (id == SERVER_MESSAGE_CONNECTED)
|
---|
534 | handle_connected (greeter, response, response_length, &offset);
|
---|
535 | g_free (response);
|
---|
536 | if (id != SERVER_MESSAGE_CONNECTED)
|
---|
537 | {
|
---|
538 | g_warning ("Expected CONNECTED message, got %d", id);
|
---|
539 | return FALSE;
|
---|
540 | }
|
---|
541 |
|
---|
542 | priv->connected = TRUE;
|
---|
543 |
|
---|
544 | return TRUE;
|
---|
545 | }
|
---|
546 |
|
---|
547 | /**
|
---|
548 | * lightdm_greeter_get_hint:
|
---|
549 | * @greeter: A #LightDMGreeter
|
---|
550 | * @name: The hint name to query.
|
---|
551 | *
|
---|
552 | * Get a hint.
|
---|
553 | *
|
---|
554 | * Return value: The value for this hint or #NULL if not set.
|
---|
555 | **/
|
---|
556 | const gchar *
|
---|
557 | lightdm_greeter_get_hint (LightDMGreeter *greeter, const gchar *name)
|
---|
558 | {
|
---|
559 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), NULL);
|
---|
560 | return g_hash_table_lookup (GET_PRIVATE (greeter)->hints, name);
|
---|
561 | }
|
---|
562 |
|
---|
563 | /**
|
---|
564 | * lightdm_greeter_get_default_session_hint:
|
---|
565 | * @greeter: A #LightDMGreeter
|
---|
566 | *
|
---|
567 | * Get the default session to use.
|
---|
568 | *
|
---|
569 | * Return value: The session name
|
---|
570 | **/
|
---|
571 | const gchar *
|
---|
572 | lightdm_greeter_get_default_session_hint (LightDMGreeter *greeter)
|
---|
573 | {
|
---|
574 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), NULL);
|
---|
575 | return lightdm_greeter_get_hint (greeter, "default-session");
|
---|
576 | }
|
---|
577 |
|
---|
578 | /**
|
---|
579 | * lightdm_greeter_get_hide_users_hint:
|
---|
580 | * @greeter: A #LightDMGreeter
|
---|
581 | *
|
---|
582 | * Check if user accounts should be shown. If this is TRUE then the list of
|
---|
583 | * accounts should be taken from #LightDMUserList and displayed in the greeter
|
---|
584 | * for the user to choose from. Note that this list can be empty and it is
|
---|
585 | * recommended you show a method for the user to enter a username manually.
|
---|
586 | *
|
---|
587 | * If this option is shown the greeter should only allow these users to be
|
---|
588 | * chosen for login unless the manual login hint is set.
|
---|
589 | *
|
---|
590 | * Return value: #TRUE if the available users should not be shown.
|
---|
591 | */
|
---|
592 | gboolean
|
---|
593 | lightdm_greeter_get_hide_users_hint (LightDMGreeter *greeter)
|
---|
594 | {
|
---|
595 | const gchar *value;
|
---|
596 |
|
---|
597 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
|
---|
598 | value = lightdm_greeter_get_hint (greeter, "hide-users");
|
---|
599 |
|
---|
600 | return g_strcmp0 (value, "true") == 0;
|
---|
601 | }
|
---|
602 |
|
---|
603 | /**
|
---|
604 | * lightdm_greeter_get_show_manual_login_hint:
|
---|
605 | * @greeter: A #LightDMGreeter
|
---|
606 | *
|
---|
607 | * Check if a manual login option should be shown. If set the GUI
|
---|
608 | * should provide a way for a username to be entered manually.
|
---|
609 | * Without this hint a greeter which is showing a user list can
|
---|
610 | * limit logins to only those users.
|
---|
611 | *
|
---|
612 | * Return value: #TRUE if a manual login option should be shown.
|
---|
613 | */
|
---|
614 | gboolean
|
---|
615 | lightdm_greeter_get_show_manual_login_hint (LightDMGreeter *greeter)
|
---|
616 | {
|
---|
617 | const gchar *value;
|
---|
618 |
|
---|
619 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
|
---|
620 | value = lightdm_greeter_get_hint (greeter, "show-manual-login");
|
---|
621 |
|
---|
622 | return g_strcmp0 (value, "true") == 0;
|
---|
623 | }
|
---|
624 |
|
---|
625 | /**
|
---|
626 | * lightdm_greeter_get_show_remote_login_hint:
|
---|
627 | * @greeter: A #LightDMGreeter
|
---|
628 | *
|
---|
629 | * Check if a remote login option should be shown. If set the GUI
|
---|
630 | * should provide a way for a user to log into a remote desktop server.
|
---|
631 | *
|
---|
632 | * Return value: #TRUE if a remote login option should be shown.
|
---|
633 | */
|
---|
634 | gboolean
|
---|
635 | lightdm_greeter_get_show_remote_login_hint (LightDMGreeter *greeter)
|
---|
636 | {
|
---|
637 | const gchar *value;
|
---|
638 |
|
---|
639 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
|
---|
640 | value = lightdm_greeter_get_hint (greeter, "show-remote-login");
|
---|
641 |
|
---|
642 | return g_strcmp0 (value, "true") == 0;
|
---|
643 | }
|
---|
644 |
|
---|
645 | /**
|
---|
646 | * lightdm_greeter_get_lock_hint:
|
---|
647 | * @greeter: A #LightDMGreeter
|
---|
648 | *
|
---|
649 | * Check if the greeter is acting as a lock screen.
|
---|
650 | *
|
---|
651 | * Return value: #TRUE if the greeter was triggered by locking the seat.
|
---|
652 | */
|
---|
653 | gboolean
|
---|
654 | lightdm_greeter_get_lock_hint (LightDMGreeter *greeter)
|
---|
655 | {
|
---|
656 | const gchar *value;
|
---|
657 |
|
---|
658 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
|
---|
659 | value = lightdm_greeter_get_hint (greeter, "lock-screen");
|
---|
660 |
|
---|
661 | return g_strcmp0 (value, "true") == 0;
|
---|
662 | }
|
---|
663 |
|
---|
664 | /**
|
---|
665 | * lightdm_greeter_get_has_guest_account_hint:
|
---|
666 | * @greeter: A #LightDMGreeter
|
---|
667 | *
|
---|
668 | * Check if guest sessions are supported.
|
---|
669 | *
|
---|
670 | * Return value: #TRUE if guest sessions are supported.
|
---|
671 | */
|
---|
672 | gboolean
|
---|
673 | lightdm_greeter_get_has_guest_account_hint (LightDMGreeter *greeter)
|
---|
674 | {
|
---|
675 | const gchar *value;
|
---|
676 |
|
---|
677 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
|
---|
678 | value = lightdm_greeter_get_hint (greeter, "has-guest-account");
|
---|
679 |
|
---|
680 | return g_strcmp0 (value, "true") == 0;
|
---|
681 | }
|
---|
682 |
|
---|
683 | /**
|
---|
684 | * lightdm_greeter_get_select_user_hint:
|
---|
685 | * @greeter: A #LightDMGreeter
|
---|
686 | *
|
---|
687 | * Get the user to select by default.
|
---|
688 | *
|
---|
689 | * Return value: A username
|
---|
690 | */
|
---|
691 | const gchar *
|
---|
692 | lightdm_greeter_get_select_user_hint (LightDMGreeter *greeter)
|
---|
693 | {
|
---|
694 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), NULL);
|
---|
695 | return lightdm_greeter_get_hint (greeter, "select-user");
|
---|
696 | }
|
---|
697 |
|
---|
698 | /**
|
---|
699 | * lightdm_greeter_get_select_guest_hint:
|
---|
700 | * @greeter: A #LightDMGreeter
|
---|
701 | *
|
---|
702 | * Check if the guest account should be selected by default.
|
---|
703 | *
|
---|
704 | * Return value: #TRUE if the guest account should be selected by default.
|
---|
705 | */
|
---|
706 | gboolean
|
---|
707 | lightdm_greeter_get_select_guest_hint (LightDMGreeter *greeter)
|
---|
708 | {
|
---|
709 | const gchar *value;
|
---|
710 |
|
---|
711 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
|
---|
712 | value = lightdm_greeter_get_hint (greeter, "select-guest");
|
---|
713 |
|
---|
714 | return g_strcmp0 (value, "true") == 0;
|
---|
715 | }
|
---|
716 |
|
---|
717 | /**
|
---|
718 | * lightdm_greeter_get_autologin_user_hint:
|
---|
719 | * @greeter: A #LightDMGreeter
|
---|
720 | *
|
---|
721 | * Get the user account to automatically logg into when the timer expires.
|
---|
722 | *
|
---|
723 | * Return value: The user account to automatically log into.
|
---|
724 | */
|
---|
725 | const gchar *
|
---|
726 | lightdm_greeter_get_autologin_user_hint (LightDMGreeter *greeter)
|
---|
727 | {
|
---|
728 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), NULL);
|
---|
729 | return lightdm_greeter_get_hint (greeter, "autologin-user");
|
---|
730 | }
|
---|
731 |
|
---|
732 | /**
|
---|
733 | * lightdm_greeter_get_autologin_guest_hint:
|
---|
734 | * @greeter: A #LightDMGreeter
|
---|
735 | *
|
---|
736 | * Check if the guest account should be automatically logged into when the timer expires.
|
---|
737 | *
|
---|
738 | * Return value: #TRUE if the guest account should be automatically logged into.
|
---|
739 | */
|
---|
740 | gboolean
|
---|
741 | lightdm_greeter_get_autologin_guest_hint (LightDMGreeter *greeter)
|
---|
742 | {
|
---|
743 | const gchar *value;
|
---|
744 |
|
---|
745 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
|
---|
746 | value = lightdm_greeter_get_hint (greeter, "autologin-guest");
|
---|
747 |
|
---|
748 | return g_strcmp0 (value, "true") == 0;
|
---|
749 | }
|
---|
750 |
|
---|
751 | /**
|
---|
752 | * lightdm_greeter_get_autologin_timeout_hint:
|
---|
753 | * @greeter: A #LightDMGreeter
|
---|
754 | *
|
---|
755 | * Get the number of seconds to wait before automaitcally logging in.
|
---|
756 | *
|
---|
757 | * Return value: The number of seconds to wait before automatically logging in or 0 for no timeout.
|
---|
758 | */
|
---|
759 | gint
|
---|
760 | lightdm_greeter_get_autologin_timeout_hint (LightDMGreeter *greeter)
|
---|
761 | {
|
---|
762 | const gchar *value;
|
---|
763 | gint timeout = 0;
|
---|
764 |
|
---|
765 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
|
---|
766 | value = lightdm_greeter_get_hint (greeter, "autologin-timeout");
|
---|
767 | if (value)
|
---|
768 | timeout = atoi (value);
|
---|
769 | if (timeout < 0)
|
---|
770 | timeout = 0;
|
---|
771 |
|
---|
772 | return timeout;
|
---|
773 | }
|
---|
774 |
|
---|
775 | /**
|
---|
776 | * lightdm_greeter_cancel_autologin:
|
---|
777 | * @greeter: A #LightDMGreeter
|
---|
778 | *
|
---|
779 | * Cancel the automatic login.
|
---|
780 | */
|
---|
781 | void
|
---|
782 | lightdm_greeter_cancel_autologin (LightDMGreeter *greeter)
|
---|
783 | {
|
---|
784 | LightDMGreeterPrivate *priv;
|
---|
785 |
|
---|
786 | g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
|
---|
787 |
|
---|
788 | priv = GET_PRIVATE (greeter);
|
---|
789 |
|
---|
790 | if (priv->autologin_timeout)
|
---|
791 | g_source_remove (priv->autologin_timeout);
|
---|
792 | priv->autologin_timeout = 0;
|
---|
793 | }
|
---|
794 |
|
---|
795 | /**
|
---|
796 | * lightdm_greeter_authenticate:
|
---|
797 | * @greeter: A #LightDMGreeter
|
---|
798 | * @username: (allow-none): A username or #NULL to prompt for a username.
|
---|
799 | *
|
---|
800 | * Starts the authentication procedure for a user.
|
---|
801 | **/
|
---|
802 | void
|
---|
803 | lightdm_greeter_authenticate (LightDMGreeter *greeter, const gchar *username)
|
---|
804 | {
|
---|
805 | LightDMGreeterPrivate *priv;
|
---|
806 | guint8 message[MAX_MESSAGE_LENGTH];
|
---|
807 | gsize offset = 0;
|
---|
808 |
|
---|
809 | g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
|
---|
810 |
|
---|
811 | priv = GET_PRIVATE (greeter);
|
---|
812 |
|
---|
813 | g_return_if_fail (priv->connected);
|
---|
814 |
|
---|
815 | priv->cancelling_authentication = FALSE;
|
---|
816 | priv->authenticate_sequence_number++;
|
---|
817 | priv->in_authentication = TRUE;
|
---|
818 | priv->is_authenticated = FALSE;
|
---|
819 | if (username != priv->authentication_user)
|
---|
820 | {
|
---|
821 | g_free (priv->authentication_user);
|
---|
822 | priv->authentication_user = g_strdup (username);
|
---|
823 | }
|
---|
824 |
|
---|
825 | g_debug ("Starting authentication for user %s...", username);
|
---|
826 | write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_AUTHENTICATE, int_length () + string_length (username), &offset);
|
---|
827 | write_int (message, MAX_MESSAGE_LENGTH, priv->authenticate_sequence_number, &offset);
|
---|
828 | write_string (message, MAX_MESSAGE_LENGTH, username, &offset);
|
---|
829 | write_message (greeter, message, offset);
|
---|
830 | }
|
---|
831 |
|
---|
832 | /**
|
---|
833 | * lightdm_greeter_authenticate_as_guest:
|
---|
834 | * @greeter: A #LightDMGreeter
|
---|
835 | *
|
---|
836 | * Starts the authentication procedure for the guest user.
|
---|
837 | **/
|
---|
838 | void
|
---|
839 | lightdm_greeter_authenticate_as_guest (LightDMGreeter *greeter)
|
---|
840 | {
|
---|
841 | LightDMGreeterPrivate *priv;
|
---|
842 | guint8 message[MAX_MESSAGE_LENGTH];
|
---|
843 | gsize offset = 0;
|
---|
844 |
|
---|
845 | g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
|
---|
846 |
|
---|
847 | priv = GET_PRIVATE (greeter);
|
---|
848 |
|
---|
849 | g_return_if_fail (priv->connected);
|
---|
850 |
|
---|
851 | priv->cancelling_authentication = FALSE;
|
---|
852 | priv->authenticate_sequence_number++;
|
---|
853 | priv->in_authentication = TRUE;
|
---|
854 | priv->is_authenticated = FALSE;
|
---|
855 | g_free (priv->authentication_user);
|
---|
856 | priv->authentication_user = NULL;
|
---|
857 |
|
---|
858 | g_debug ("Starting authentication for guest account...");
|
---|
859 | write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_AUTHENTICATE_AS_GUEST, int_length (), &offset);
|
---|
860 | write_int (message, MAX_MESSAGE_LENGTH, priv->authenticate_sequence_number, &offset);
|
---|
861 | write_message (greeter, message, offset);
|
---|
862 | }
|
---|
863 |
|
---|
864 | /**
|
---|
865 | * lightdm_greeter_authenticate_autologin:
|
---|
866 | * @greeter: A #LightDMGreeter
|
---|
867 | *
|
---|
868 | * Starts the authentication procedure for the automatic login user.
|
---|
869 | **/
|
---|
870 | void
|
---|
871 | lightdm_greeter_authenticate_autologin (LightDMGreeter *greeter)
|
---|
872 | {
|
---|
873 | const gchar *user;
|
---|
874 |
|
---|
875 | user = lightdm_greeter_get_autologin_user_hint (greeter);
|
---|
876 | if (lightdm_greeter_get_autologin_guest_hint (greeter))
|
---|
877 | lightdm_greeter_authenticate_as_guest (greeter);
|
---|
878 | else if (user)
|
---|
879 | lightdm_greeter_authenticate (greeter, user);
|
---|
880 | }
|
---|
881 |
|
---|
882 | /**
|
---|
883 | * lightdm_greeter_authenticate_remote:
|
---|
884 | * @greeter: A #LightDMGreeter
|
---|
885 | * @session: The name of a remote session
|
---|
886 | * @username: (allow-none): A username of #NULL to prompt for a username.
|
---|
887 | *
|
---|
888 | * Start authentication for a remote session type.
|
---|
889 | **/
|
---|
890 | void
|
---|
891 | lightdm_greeter_authenticate_remote (LightDMGreeter *greeter, const gchar *session, const gchar *username)
|
---|
892 | {
|
---|
893 | LightDMGreeterPrivate *priv;
|
---|
894 | guint8 message[MAX_MESSAGE_LENGTH];
|
---|
895 | gsize offset = 0;
|
---|
896 |
|
---|
897 | g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
|
---|
898 |
|
---|
899 | priv = GET_PRIVATE (greeter);
|
---|
900 |
|
---|
901 | g_return_if_fail (priv->connected);
|
---|
902 |
|
---|
903 | priv->cancelling_authentication = FALSE;
|
---|
904 | priv->authenticate_sequence_number++;
|
---|
905 | priv->in_authentication = TRUE;
|
---|
906 | priv->is_authenticated = FALSE;
|
---|
907 | g_free (priv->authentication_user);
|
---|
908 | priv->authentication_user = NULL;
|
---|
909 |
|
---|
910 | if (username)
|
---|
911 | g_debug ("Starting authentication for remote session %s as user %s...", session, username);
|
---|
912 | else
|
---|
913 | g_debug ("Starting authentication for remote session %s...", session);
|
---|
914 | write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_AUTHENTICATE_REMOTE, int_length () + string_length (session) + string_length (username), &offset);
|
---|
915 | write_int (message, MAX_MESSAGE_LENGTH, priv->authenticate_sequence_number, &offset);
|
---|
916 | write_string (message, MAX_MESSAGE_LENGTH, session, &offset);
|
---|
917 | write_string (message, MAX_MESSAGE_LENGTH, username, &offset);
|
---|
918 | write_message (greeter, message, offset);
|
---|
919 | }
|
---|
920 |
|
---|
921 | /**
|
---|
922 | * lightdm_greeter_respond:
|
---|
923 | * @greeter: A #LightDMGreeter
|
---|
924 | * @response: Response to a prompt
|
---|
925 | *
|
---|
926 | * Provide response to a prompt. May be one in a series.
|
---|
927 | **/
|
---|
928 | void
|
---|
929 | lightdm_greeter_respond (LightDMGreeter *greeter, const gchar *response)
|
---|
930 | {
|
---|
931 | LightDMGreeterPrivate *priv;
|
---|
932 | guint8 message[MAX_MESSAGE_LENGTH];
|
---|
933 | gsize offset = 0;
|
---|
934 |
|
---|
935 | g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
|
---|
936 | g_return_if_fail (response != NULL);
|
---|
937 |
|
---|
938 | priv = GET_PRIVATE (greeter);
|
---|
939 |
|
---|
940 | g_return_if_fail (priv->connected);
|
---|
941 | g_return_if_fail (priv->n_responses_waiting > 0);
|
---|
942 |
|
---|
943 | priv->n_responses_waiting--;
|
---|
944 | priv->responses_received = g_list_append (priv->responses_received, g_strdup (response));
|
---|
945 |
|
---|
946 | if (priv->n_responses_waiting == 0)
|
---|
947 | {
|
---|
948 | guint32 msg_length;
|
---|
949 | GList *iter;
|
---|
950 |
|
---|
951 | g_debug ("Providing response to display manager");
|
---|
952 |
|
---|
953 | msg_length = int_length ();
|
---|
954 | for (iter = priv->responses_received; iter; iter = iter->next)
|
---|
955 | {
|
---|
956 | msg_length += string_length ((gchar *)iter->data);
|
---|
957 | }
|
---|
958 |
|
---|
959 | write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_CONTINUE_AUTHENTICATION, msg_length, &offset);
|
---|
960 | write_int (message, MAX_MESSAGE_LENGTH, g_list_length (priv->responses_received), &offset);
|
---|
961 | for (iter = priv->responses_received; iter; iter = iter->next)
|
---|
962 | {
|
---|
963 | write_string (message, MAX_MESSAGE_LENGTH, (gchar *)iter->data, &offset);
|
---|
964 | }
|
---|
965 | write_message (greeter, message, offset);
|
---|
966 |
|
---|
967 | g_list_free_full (priv->responses_received, g_free);
|
---|
968 | priv->responses_received = NULL;
|
---|
969 | }
|
---|
970 | }
|
---|
971 |
|
---|
972 | /**
|
---|
973 | * lightdm_greeter_cancel_authentication:
|
---|
974 | * @greeter: A #LightDMGreeter
|
---|
975 | *
|
---|
976 | * Cancel the current user authentication.
|
---|
977 | **/
|
---|
978 | void
|
---|
979 | lightdm_greeter_cancel_authentication (LightDMGreeter *greeter)
|
---|
980 | {
|
---|
981 | LightDMGreeterPrivate *priv;
|
---|
982 | guint8 message[MAX_MESSAGE_LENGTH];
|
---|
983 | gsize offset = 0;
|
---|
984 |
|
---|
985 | g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
|
---|
986 |
|
---|
987 | priv = GET_PRIVATE (greeter);
|
---|
988 |
|
---|
989 | g_return_if_fail (priv->connected);
|
---|
990 |
|
---|
991 | priv->cancelling_authentication = TRUE;
|
---|
992 | write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_CANCEL_AUTHENTICATION, 0, &offset);
|
---|
993 | write_message (greeter, message, offset);
|
---|
994 | }
|
---|
995 |
|
---|
996 | /**
|
---|
997 | * lightdm_greeter_get_in_authentication:
|
---|
998 | * @greeter: A #LightDMGreeter
|
---|
999 | *
|
---|
1000 | * Checks if the greeter is in the process of authenticating.
|
---|
1001 | *
|
---|
1002 | * Return value: #TRUE if the greeter is authenticating a user.
|
---|
1003 | **/
|
---|
1004 | gboolean
|
---|
1005 | lightdm_greeter_get_in_authentication (LightDMGreeter *greeter)
|
---|
1006 | {
|
---|
1007 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
|
---|
1008 | return GET_PRIVATE (greeter)->in_authentication;
|
---|
1009 | }
|
---|
1010 |
|
---|
1011 | /**
|
---|
1012 | * lightdm_greeter_get_is_authenticated:
|
---|
1013 | * @greeter: A #LightDMGreeter
|
---|
1014 | *
|
---|
1015 | * Checks if the greeter has successfully authenticated.
|
---|
1016 | *
|
---|
1017 | * Return value: #TRUE if the greeter is authenticated for login.
|
---|
1018 | **/
|
---|
1019 | gboolean
|
---|
1020 | lightdm_greeter_get_is_authenticated (LightDMGreeter *greeter)
|
---|
1021 | {
|
---|
1022 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
|
---|
1023 | return GET_PRIVATE (greeter)->is_authenticated;
|
---|
1024 | }
|
---|
1025 |
|
---|
1026 | /**
|
---|
1027 | * lightdm_greeter_get_authentication_user:
|
---|
1028 | * @greeter: A #LightDMGreeter
|
---|
1029 | *
|
---|
1030 | * Get the user that is being authenticated.
|
---|
1031 | *
|
---|
1032 | * Return value: The username of the authentication user being authenticated or #NULL if no authentication in progress.
|
---|
1033 | */
|
---|
1034 | const gchar *
|
---|
1035 | lightdm_greeter_get_authentication_user (LightDMGreeter *greeter)
|
---|
1036 | {
|
---|
1037 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), NULL);
|
---|
1038 | return GET_PRIVATE (greeter)->authentication_user;
|
---|
1039 | }
|
---|
1040 |
|
---|
1041 | /**
|
---|
1042 | * lightdm_greeter_set_language:
|
---|
1043 | * @greeter: A #LightDMGreeter
|
---|
1044 | * @language: The language to use for this user.
|
---|
1045 | *
|
---|
1046 | * Set the language for the currently authenticated user.
|
---|
1047 | **/
|
---|
1048 | void
|
---|
1049 | lightdm_greeter_set_language (LightDMGreeter *greeter, const gchar *language)
|
---|
1050 | {
|
---|
1051 | LightDMGreeterPrivate *priv;
|
---|
1052 | guint8 message[MAX_MESSAGE_LENGTH];
|
---|
1053 | gsize offset = 0;
|
---|
1054 |
|
---|
1055 | g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
|
---|
1056 |
|
---|
1057 | priv = GET_PRIVATE (greeter);
|
---|
1058 |
|
---|
1059 | g_return_if_fail (priv->connected);
|
---|
1060 |
|
---|
1061 | write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_SET_LANGUAGE, string_length (language), &offset);
|
---|
1062 | write_string (message, MAX_MESSAGE_LENGTH, language, &offset);
|
---|
1063 | write_message (greeter, message, offset);
|
---|
1064 | }
|
---|
1065 |
|
---|
1066 | /**
|
---|
1067 | * lightdm_greeter_start_session_sync:
|
---|
1068 | * @greeter: A #LightDMGreeter
|
---|
1069 | * @session: (allow-none): The session to log into or #NULL to use the default.
|
---|
1070 | * @error: return location for a #GError, or %NULL
|
---|
1071 | *
|
---|
1072 | * Start a session for the authenticated user.
|
---|
1073 | *
|
---|
1074 | * Return value: TRUE if the session was started.
|
---|
1075 | **/
|
---|
1076 | gboolean
|
---|
1077 | lightdm_greeter_start_session_sync (LightDMGreeter *greeter, const gchar *session, GError **error)
|
---|
1078 | {
|
---|
1079 | LightDMGreeterPrivate *priv;
|
---|
1080 | guint8 message[MAX_MESSAGE_LENGTH];
|
---|
1081 | guint8 *response;
|
---|
1082 | gsize response_length, offset = 0;
|
---|
1083 | guint32 id, return_code = 1;
|
---|
1084 |
|
---|
1085 | g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
|
---|
1086 |
|
---|
1087 | priv = GET_PRIVATE (greeter);
|
---|
1088 |
|
---|
1089 | g_return_val_if_fail (priv->connected, FALSE);
|
---|
1090 | g_return_val_if_fail (priv->is_authenticated, FALSE);
|
---|
1091 |
|
---|
1092 | if (session)
|
---|
1093 | g_debug ("Starting session %s", session);
|
---|
1094 | else
|
---|
1095 | g_debug ("Starting default session");
|
---|
1096 |
|
---|
1097 | write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_START_SESSION, string_length (session), &offset);
|
---|
1098 | write_string (message, MAX_MESSAGE_LENGTH, session, &offset);
|
---|
1099 | write_message (greeter, message, offset);
|
---|
1100 |
|
---|
1101 | response = read_message (greeter, &response_length, TRUE);
|
---|
1102 | if (!response)
|
---|
1103 | return FALSE;
|
---|
1104 |
|
---|
1105 | offset = 0;
|
---|
1106 | id = read_int (response, response_length, &offset);
|
---|
1107 | read_int (response, response_length, &offset);
|
---|
1108 | if (id == SERVER_MESSAGE_SESSION_RESULT)
|
---|
1109 | return_code = read_int (response, response_length, &offset);
|
---|
1110 | else
|
---|
1111 | g_warning ("Expected SESSION_RESULT message, got %d", id);
|
---|
1112 |
|
---|
1113 | g_free (response);
|
---|
1114 |
|
---|
1115 | return return_code == 0;
|
---|
1116 | }
|
---|
1117 |
|
---|
1118 | static void
|
---|
1119 | lightdm_greeter_init (LightDMGreeter *greeter)
|
---|
1120 | {
|
---|
1121 | LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
|
---|
1122 |
|
---|
1123 | priv->read_buffer = g_malloc (HEADER_SIZE);
|
---|
1124 | priv->hints = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
|
---|
1125 | }
|
---|
1126 |
|
---|
1127 | static void
|
---|
1128 | lightdm_greeter_set_property (GObject *object,
|
---|
1129 | guint prop_id,
|
---|
1130 | const GValue *value,
|
---|
1131 | GParamSpec *pspec)
|
---|
1132 | {
|
---|
1133 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
---|
1134 | }
|
---|
1135 |
|
---|
1136 | static void
|
---|
1137 | lightdm_greeter_get_property (GObject *object,
|
---|
1138 | guint prop_id,
|
---|
1139 | GValue *value,
|
---|
1140 | GParamSpec *pspec)
|
---|
1141 | {
|
---|
1142 | LightDMGreeter *self;
|
---|
1143 |
|
---|
1144 | self = LIGHTDM_GREETER (object);
|
---|
1145 |
|
---|
1146 | switch (prop_id) {
|
---|
1147 | case PROP_DEFAULT_SESSION_HINT:
|
---|
1148 | g_value_set_string (value, lightdm_greeter_get_default_session_hint (self));
|
---|
1149 | break;
|
---|
1150 | case PROP_HIDE_USERS_HINT:
|
---|
1151 | g_value_set_boolean (value, lightdm_greeter_get_hide_users_hint (self));
|
---|
1152 | break;
|
---|
1153 | case PROP_SHOW_MANUAL_LOGIN_HINT:
|
---|
1154 | g_value_set_boolean (value, lightdm_greeter_get_show_manual_login_hint (self));
|
---|
1155 | break;
|
---|
1156 | case PROP_SHOW_REMOTE_LOGIN_HINT:
|
---|
1157 | g_value_set_boolean (value, lightdm_greeter_get_show_remote_login_hint (self));
|
---|
1158 | break;
|
---|
1159 | case PROP_LOCK_HINT:
|
---|
1160 | g_value_set_boolean (value, lightdm_greeter_get_lock_hint (self));
|
---|
1161 | break;
|
---|
1162 | case PROP_HAS_GUEST_ACCOUNT_HINT:
|
---|
1163 | g_value_set_boolean (value, lightdm_greeter_get_has_guest_account_hint (self));
|
---|
1164 | break;
|
---|
1165 | case PROP_SELECT_USER_HINT:
|
---|
1166 | g_value_set_string (value, lightdm_greeter_get_select_user_hint (self));
|
---|
1167 | break;
|
---|
1168 | case PROP_SELECT_GUEST_HINT:
|
---|
1169 | g_value_set_boolean (value, lightdm_greeter_get_select_guest_hint (self));
|
---|
1170 | break;
|
---|
1171 | case PROP_AUTOLOGIN_USER_HINT:
|
---|
1172 | g_value_set_string (value, lightdm_greeter_get_autologin_user_hint (self));
|
---|
1173 | break;
|
---|
1174 | case PROP_AUTOLOGIN_GUEST_HINT:
|
---|
1175 | g_value_set_boolean (value, lightdm_greeter_get_autologin_guest_hint (self));
|
---|
1176 | break;
|
---|
1177 | case PROP_AUTOLOGIN_TIMEOUT_HINT:
|
---|
1178 | g_value_set_int (value, lightdm_greeter_get_autologin_timeout_hint (self));
|
---|
1179 | break;
|
---|
1180 | case PROP_AUTHENTICATION_USER:
|
---|
1181 | g_value_set_string (value, lightdm_greeter_get_authentication_user (self));
|
---|
1182 | break;
|
---|
1183 | case PROP_IN_AUTHENTICATION:
|
---|
1184 | g_value_set_boolean (value, lightdm_greeter_get_in_authentication (self));
|
---|
1185 | break;
|
---|
1186 | case PROP_IS_AUTHENTICATED:
|
---|
1187 | g_value_set_boolean (value, lightdm_greeter_get_is_authenticated (self));
|
---|
1188 | break;
|
---|
1189 | default:
|
---|
1190 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
---|
1191 | break;
|
---|
1192 | }
|
---|
1193 | }
|
---|
1194 |
|
---|
1195 | static void
|
---|
1196 | marshal_VOID__STRING_INT (GClosure *closure,
|
---|
1197 | GValue *return_value G_GNUC_UNUSED,
|
---|
1198 | guint n_param_values,
|
---|
1199 | const GValue *param_values,
|
---|
1200 | gpointer invocation_hint G_GNUC_UNUSED,
|
---|
1201 | gpointer marshal_data)
|
---|
1202 | {
|
---|
1203 | typedef void (*GMarshalFunc_VOID__STRING_INT) (gpointer data1,
|
---|
1204 | gpointer arg_1,
|
---|
1205 | gint arg_2,
|
---|
1206 | gpointer data2);
|
---|
1207 | register GMarshalFunc_VOID__STRING_INT callback;
|
---|
1208 | register GCClosure *cc = (GCClosure*) closure;
|
---|
1209 | register gpointer data1, data2;
|
---|
1210 |
|
---|
1211 | g_return_if_fail (n_param_values == 3);
|
---|
1212 |
|
---|
1213 | if (G_CCLOSURE_SWAP_DATA (closure))
|
---|
1214 | {
|
---|
1215 | data1 = closure->data;
|
---|
1216 | data2 = g_value_peek_pointer (param_values + 0);
|
---|
1217 | }
|
---|
1218 | else
|
---|
1219 | {
|
---|
1220 | data1 = g_value_peek_pointer (param_values + 0);
|
---|
1221 | data2 = closure->data;
|
---|
1222 | }
|
---|
1223 | callback = (GMarshalFunc_VOID__STRING_INT) (marshal_data ? marshal_data : cc->callback);
|
---|
1224 |
|
---|
1225 | callback (data1,
|
---|
1226 | (param_values + 1)->data[0].v_pointer,
|
---|
1227 | (param_values + 2)->data[0].v_int,
|
---|
1228 | data2);
|
---|
1229 | }
|
---|
1230 |
|
---|
1231 | static void
|
---|
1232 | lightdm_greeter_finalize (GObject *object)
|
---|
1233 | {
|
---|
1234 | LightDMGreeter *self = LIGHTDM_GREETER (object);
|
---|
1235 | LightDMGreeterPrivate *priv = GET_PRIVATE (self);
|
---|
1236 |
|
---|
1237 | if (priv->to_server_channel)
|
---|
1238 | g_io_channel_unref (priv->to_server_channel);
|
---|
1239 | if (priv->from_server_channel)
|
---|
1240 | g_io_channel_unref (priv->from_server_channel);
|
---|
1241 | g_free (priv->authentication_user);
|
---|
1242 | g_hash_table_unref (priv->hints);
|
---|
1243 |
|
---|
1244 | G_OBJECT_CLASS (lightdm_greeter_parent_class)->finalize (object);
|
---|
1245 | }
|
---|
1246 |
|
---|
1247 | static void
|
---|
1248 | lightdm_greeter_class_init (LightDMGreeterClass *klass)
|
---|
1249 | {
|
---|
1250 | GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
---|
1251 |
|
---|
1252 | g_type_class_add_private (klass, sizeof (LightDMGreeterPrivate));
|
---|
1253 |
|
---|
1254 | object_class->set_property = lightdm_greeter_set_property;
|
---|
1255 | object_class->get_property = lightdm_greeter_get_property;
|
---|
1256 | object_class->finalize = lightdm_greeter_finalize;
|
---|
1257 |
|
---|
1258 | g_object_class_install_property (object_class,
|
---|
1259 | PROP_DEFAULT_SESSION_HINT,
|
---|
1260 | g_param_spec_string ("default-session-hint",
|
---|
1261 | "default-session-hint",
|
---|
1262 | "Default session hint",
|
---|
1263 | NULL,
|
---|
1264 | G_PARAM_READWRITE));
|
---|
1265 |
|
---|
1266 | g_object_class_install_property (object_class,
|
---|
1267 | PROP_HIDE_USERS_HINT,
|
---|
1268 | g_param_spec_boolean ("hide-users-hint",
|
---|
1269 | "hide-users-hint",
|
---|
1270 | "Hide users hint",
|
---|
1271 | FALSE,
|
---|
1272 | G_PARAM_READABLE));
|
---|
1273 |
|
---|
1274 | g_object_class_install_property (object_class,
|
---|
1275 | PROP_SHOW_MANUAL_LOGIN_HINT,
|
---|
1276 | g_param_spec_boolean ("show-manual-login-hint",
|
---|
1277 | "show-manual-login-hint",
|
---|
1278 | "Show manual login hint",
|
---|
1279 | FALSE,
|
---|
1280 | G_PARAM_READABLE));
|
---|
1281 |
|
---|
1282 | g_object_class_install_property (object_class,
|
---|
1283 | PROP_SHOW_REMOTE_LOGIN_HINT,
|
---|
1284 | g_param_spec_boolean ("show-remote-login-hint",
|
---|
1285 | "show-remote-login-hint",
|
---|
1286 | "Show remote login hint",
|
---|
1287 | FALSE,
|
---|
1288 | G_PARAM_READABLE));
|
---|
1289 |
|
---|
1290 | g_object_class_install_property (object_class,
|
---|
1291 | PROP_LOCK_HINT,
|
---|
1292 | g_param_spec_boolean ("lock-hint",
|
---|
1293 | "lock-hint",
|
---|
1294 | "Lock hint",
|
---|
1295 | FALSE,
|
---|
1296 | G_PARAM_READABLE));
|
---|
1297 |
|
---|
1298 | g_object_class_install_property (object_class,
|
---|
1299 | PROP_HAS_GUEST_ACCOUNT_HINT,
|
---|
1300 | g_param_spec_boolean ("has-guest-account-hint",
|
---|
1301 | "has-guest-account-hint",
|
---|
1302 | "Has guest account hint",
|
---|
1303 | FALSE,
|
---|
1304 | G_PARAM_READABLE));
|
---|
1305 |
|
---|
1306 | g_object_class_install_property (object_class,
|
---|
1307 | PROP_SELECT_USER_HINT,
|
---|
1308 | g_param_spec_string ("select-user-hint",
|
---|
1309 | "select-user-hint",
|
---|
1310 | "Select user hint",
|
---|
1311 | NULL,
|
---|
1312 | G_PARAM_READABLE));
|
---|
1313 |
|
---|
1314 | g_object_class_install_property (object_class,
|
---|
1315 | PROP_SELECT_GUEST_HINT,
|
---|
1316 | g_param_spec_boolean ("select-guest-hint",
|
---|
1317 | "select-guest-hint",
|
---|
1318 | "Select guest account hint",
|
---|
1319 | FALSE,
|
---|
1320 | G_PARAM_READABLE));
|
---|
1321 |
|
---|
1322 | g_object_class_install_property (object_class,
|
---|
1323 | PROP_AUTOLOGIN_USER_HINT,
|
---|
1324 | g_param_spec_string ("autologin-user-hint",
|
---|
1325 | "autologin-user-hint",
|
---|
1326 | "Autologin user hint",
|
---|
1327 | NULL,
|
---|
1328 | G_PARAM_READABLE));
|
---|
1329 |
|
---|
1330 | g_object_class_install_property (object_class,
|
---|
1331 | PROP_AUTOLOGIN_GUEST_HINT,
|
---|
1332 | g_param_spec_boolean ("autologin-guest-hint",
|
---|
1333 | "autologin-guest-hint",
|
---|
1334 | "Autologin guest account hint",
|
---|
1335 | FALSE,
|
---|
1336 | G_PARAM_READABLE));
|
---|
1337 |
|
---|
1338 | g_object_class_install_property (object_class,
|
---|
1339 | PROP_AUTOLOGIN_TIMEOUT_HINT,
|
---|
1340 | g_param_spec_int ("autologin-timeout-hint",
|
---|
1341 | "autologin-timeout-hint",
|
---|
1342 | "Autologin timeout hint",
|
---|
1343 | 0, G_MAXINT, 0,
|
---|
1344 | G_PARAM_READABLE));
|
---|
1345 |
|
---|
1346 | g_object_class_install_property (object_class,
|
---|
1347 | PROP_AUTHENTICATION_USER,
|
---|
1348 | g_param_spec_string ("authentication-user",
|
---|
1349 | "authentication-user",
|
---|
1350 | "The user being authenticated",
|
---|
1351 | NULL,
|
---|
1352 | G_PARAM_READABLE));
|
---|
1353 | g_object_class_install_property (object_class,
|
---|
1354 | PROP_IN_AUTHENTICATION,
|
---|
1355 | g_param_spec_boolean ("in-authentication",
|
---|
1356 | "in-authentication",
|
---|
1357 | "TRUE if a user is being authenticated",
|
---|
1358 | FALSE,
|
---|
1359 | G_PARAM_READABLE));
|
---|
1360 | g_object_class_install_property (object_class,
|
---|
1361 | PROP_IS_AUTHENTICATED,
|
---|
1362 | g_param_spec_boolean ("is-authenticated",
|
---|
1363 | "is-authenticated",
|
---|
1364 | "TRUE if the selected user is authenticated",
|
---|
1365 | FALSE,
|
---|
1366 | G_PARAM_READABLE));
|
---|
1367 |
|
---|
1368 | /**
|
---|
1369 | * LightDMGreeter::show-prompt:
|
---|
1370 | * @greeter: A #LightDMGreeter
|
---|
1371 | * @text: Prompt text
|
---|
1372 | * @type: Prompt type
|
---|
1373 | *
|
---|
1374 | * The ::show-prompt signal gets emitted when the greeter should show a
|
---|
1375 | * prompt to the user. The given text should be displayed and an input
|
---|
1376 | * field for the user to provide a response.
|
---|
1377 | *
|
---|
1378 | * Call lightdm_greeter_respond() with the resultant input or
|
---|
1379 | * lightdm_greeter_cancel_authentication() to abort the authentication.
|
---|
1380 | **/
|
---|
1381 | signals[SHOW_PROMPT] =
|
---|
1382 | g_signal_new ("show-prompt",
|
---|
1383 | G_TYPE_FROM_CLASS (klass),
|
---|
1384 | G_SIGNAL_RUN_LAST,
|
---|
1385 | G_STRUCT_OFFSET (LightDMGreeterClass, show_prompt),
|
---|
1386 | NULL, NULL,
|
---|
1387 | marshal_VOID__STRING_INT,
|
---|
1388 | G_TYPE_NONE, 2, G_TYPE_STRING, G_TYPE_INT);
|
---|
1389 |
|
---|
1390 | /**
|
---|
1391 | * LightDMGreeter::show-message:
|
---|
1392 | * @greeter: A #LightDMGreeter
|
---|
1393 | * @text: Message text
|
---|
1394 | * @type: Message type
|
---|
1395 | *
|
---|
1396 | * The ::show-message signal gets emitted when the greeter
|
---|
1397 | * should show a message to the user.
|
---|
1398 | **/
|
---|
1399 | signals[SHOW_MESSAGE] =
|
---|
1400 | g_signal_new ("show-message",
|
---|
1401 | G_TYPE_FROM_CLASS (klass),
|
---|
1402 | G_SIGNAL_RUN_LAST,
|
---|
1403 | G_STRUCT_OFFSET (LightDMGreeterClass, show_message),
|
---|
1404 | NULL, NULL,
|
---|
1405 | marshal_VOID__STRING_INT,
|
---|
1406 | G_TYPE_NONE, 2, G_TYPE_STRING, G_TYPE_INT);
|
---|
1407 |
|
---|
1408 | /**
|
---|
1409 | * LightDMGreeter::authentication-complete:
|
---|
1410 | * @greeter: A #LightDMGreeter
|
---|
1411 | *
|
---|
1412 | * The ::authentication-complete signal gets emitted when the greeter
|
---|
1413 | * has completed authentication.
|
---|
1414 | *
|
---|
1415 | * Call lightdm_greeter_get_is_authenticated() to check if the authentication
|
---|
1416 | * was successful.
|
---|
1417 | **/
|
---|
1418 | signals[AUTHENTICATION_COMPLETE] =
|
---|
1419 | g_signal_new ("authentication-complete",
|
---|
1420 | G_TYPE_FROM_CLASS (klass),
|
---|
1421 | G_SIGNAL_RUN_LAST,
|
---|
1422 | G_STRUCT_OFFSET (LightDMGreeterClass, authentication_complete),
|
---|
1423 | NULL, NULL,
|
---|
1424 | g_cclosure_marshal_VOID__VOID,
|
---|
1425 | G_TYPE_NONE, 0);
|
---|
1426 |
|
---|
1427 | /**
|
---|
1428 | * LightDMGreeter::autologin-timer-expired:
|
---|
1429 | * @greeter: A #LightDMGreeter
|
---|
1430 | *
|
---|
1431 | * The ::timed-login signal gets emitted when the automatic login timer has expired.
|
---|
1432 | * The application should then call lightdm_greeter_login().
|
---|
1433 | **/
|
---|
1434 | signals[AUTOLOGIN_TIMER_EXPIRED] =
|
---|
1435 | g_signal_new ("autologin-timer-expired",
|
---|
1436 | G_TYPE_FROM_CLASS (klass),
|
---|
1437 | G_SIGNAL_RUN_LAST,
|
---|
1438 | G_STRUCT_OFFSET (LightDMGreeterClass, autologin_timer_expired),
|
---|
1439 | NULL, NULL,
|
---|
1440 | g_cclosure_marshal_VOID__VOID,
|
---|
1441 | G_TYPE_NONE, 0);
|
---|
1442 | }
|
---|