gio/tests/gtlsconsoleinteraction.c

   1 /* GIO - GLib Input, Output and Streaming Library
   2  *
   3  * Copyright (C) 2011 Collabora, Ltd.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General
  16  * Public License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  *
  20  * Author: Stef Walter <stefw@collabora.co.uk>
  21  */
  22
  23 #include "config.h"
  24
  25 #include <glib.h>
  26 #include <string.h>
  27
  28 #ifdef G_OS_WIN32
  29 #include <glib/gprintf.h>
  30 #include <conio.h>
  31 #endif
  32
  33 #include "gtlsconsoleinteraction.h"
  34
  35 /*
  36  * WARNING: This is not the example you're looking for [slow hand wave]. This
  37  * is not industrial strength, it's just for testing. It uses embarassing
  38  * functions like getpass() and does lazy things with threads.
  39  */
  40
  41 G_DEFINE_TYPE (GTlsConsoleInteraction, g_tls_console_interaction, G_TYPE_TLS_INTERACTION);
  42
  43 #ifdef G_OS_WIN32
  44 /* win32 doesn't have getpass() */
  45 static gchar *
  46 getpass (const gchar *prompt)
  47 {
  48   static gchar buf[BUFSIZ];
  49   gint i;
  50
  51   g_printf ("%s", prompt);
  52   fflush (stdout);
  53
  54   for (i = 0; i < BUFSIZ - 1; ++i)
  55     {
  56       buf[i] = _getch ();
  57       if (buf[i] == '\r')
  58         break;
  59     }
  60   buf[i] = '\0';
  61
  62   g_printf ("\n");
  63
  64   return &buf[0];
  65 }
  66 #endif
  67
  68 static GTlsInteractionResult
  69 g_tls_console_interaction_ask_password (GTlsInteraction    *interaction,
  70                                         GTlsPassword       *password,
  71                                         GCancellable       *cancellable,
  72                                         GError            **error)
  73 {
  74   const gchar *value;
  75   gchar *prompt;
  76
  77   prompt = g_strdup_printf ("Password \"%s\"': ", g_tls_password_get_description (password));
  78   value = getpass (prompt);
  79   g_free (prompt);
  80
  81   if (g_cancellable_set_error_if_cancelled (cancellable, error))
  82     return G_TLS_INTERACTION_FAILED;
  83
  84   g_tls_password_set_value (password, (guchar *)value, -1);
  85   return G_TLS_INTERACTION_HANDLED;
  86 }
  87
  88 static void
  89 ask_password_with_getpass (GTask        *task,
  90                            gpointer      object,
  91                            gpointer      task_data,
  92                            GCancellable *cancellable)
  93 {
  94   GTlsPassword *password = task_data;
  95   GError *error = NULL;
  96
  97   g_tls_console_interaction_ask_password (G_TLS_INTERACTION (object), password,
  98                                           cancellable, &error);
  99   if (error != NULL)
 100     g_task_return_error (task, error);
 101   else
 102     g_task_return_int (task, G_TLS_INTERACTION_HANDLED);
 103 }
 104
 105 static void
 106 g_tls_console_interaction_ask_password_async (GTlsInteraction    *interaction,
 107                                               GTlsPassword       *password,
 108                                               GCancellable       *cancellable,
 109                                               GAsyncReadyCallback callback,
 110                                               gpointer            user_data)
 111 {
 112   GTask *task;
 113
 114   task = g_task_new (interaction, cancellable, callback, user_data);
 115   g_task_set_task_data (task, g_object_ref (password), g_object_unref);
 116   g_task_run_in_thread (task, ask_password_with_getpass);
 117   g_object_unref (task);
 118 }
 119
 120 static GTlsInteractionResult
 121 g_tls_console_interaction_ask_password_finish (GTlsInteraction    *interaction,
 122                                                GAsyncResult       *result,
 123                                                GError            **error)
 124 {
 125   GTlsInteractionResult ret;
 126
 127   g_return_val_if_fail (g_task_is_valid (result, interaction),
 128                         G_TLS_INTERACTION_FAILED);
 129
 130   ret = g_task_propagate_int (G_TASK (result), error);
 131   if (ret == (GTlsInteractionResult)-1)
 132     return G_TLS_INTERACTION_FAILED;
 133   else
 134     return ret;
 135 }
 136
 137 static void
 138 g_tls_console_interaction_init (GTlsConsoleInteraction *interaction)
 139 {
 140
 141 }
 142
 143 static void
 144 g_tls_console_interaction_class_init (GTlsConsoleInteractionClass *klass)
 145 {
 146   GTlsInteractionClass *interaction_class = G_TLS_INTERACTION_CLASS (klass);
 147   interaction_class->ask_password = g_tls_console_interaction_ask_password;
 148   interaction_class->ask_password_async = g_tls_console_interaction_ask_password_async;
 149   interaction_class->ask_password_finish = g_tls_console_interaction_ask_password_finish;
 150 }
 151
 152 GTlsInteraction *
 153 g_tls_console_interaction_new (void)
 154 {
 155   return g_object_new (G_TYPE_TLS_CONSOLE_INTERACTION, NULL);
 156 }