/* gpaexportserverop.c - The GpaExportServerOperation object.
 *	Copyright (C) 2003, Miguel Coca.
 *
 * This file is part of GPA
 *
 * GPA is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * GPA is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#include <gpgme.h>
#include <unistd.h>
#include "gpa.h"
#include "i18n.h"
#include "gtktools.h"
#include "gpgmetools.h"
#include "server_access.h"
#include "gpaexportserverop.h"

static GObjectClass *parent_class = NULL;

static gboolean
gpa_export_server_operation_get_destination (GpaExportOperation *operation, 
						gpgme_data_t *dest,
						gboolean *armor);
static void 
gpa_export_server_operation_complete_export (GpaExportOperation *operation);

/* GObject boilerplate */

static void
gpa_export_server_operation_finalize (GObject *object)
{
  GpaExportServerOperation *op = GPA_EXPORT_SERVER_OPERATION (object);
  
  if (op->server)
    {
      g_free (op->server);
    }

  G_OBJECT_CLASS (parent_class)->finalize (object);
}

static void
gpa_export_server_operation_init (GpaExportServerOperation *op)
{
  op->server = NULL;
}

static GObject*
gpa_export_server_operation_constructor (GType type,
				  guint n_construct_properties,
				  GObjectConstructParam *construct_properties)
{
  GObject *object;
  GpaExportServerOperation *op;

  /* Invoke parent's constructor */
  object = parent_class->constructor (type,
				      n_construct_properties,
				      construct_properties);
  op = GPA_EXPORT_SERVER_OPERATION (object);

  return object;
}

static void
gpa_export_server_operation_class_init (GpaExportServerOperationClass *klass)
{
  GObjectClass *object_class = G_OBJECT_CLASS (klass);
  GpaExportOperationClass *export_class = GPA_EXPORT_OPERATION_CLASS (klass);

  parent_class = g_type_class_peek_parent (klass);

  object_class->constructor = gpa_export_server_operation_constructor;
  object_class->finalize = gpa_export_server_operation_finalize;
  export_class->get_destination = gpa_export_server_operation_get_destination;
  export_class->complete_export = gpa_export_server_operation_complete_export;  
}

GType
gpa_export_server_operation_get_type (void)
{
  static GType file_operation_type = 0;
  
  if (!file_operation_type)
    {
      static const GTypeInfo file_operation_info =
      {
        sizeof (GpaExportServerOperationClass),
        (GBaseInitFunc) NULL,
        (GBaseFinalizeFunc) NULL,
        (GClassInitFunc) gpa_export_server_operation_class_init,
        NULL,           /* class_finalize */
        NULL,           /* class_data */
        sizeof (GpaExportServerOperation),
        0,              /* n_preallocs */
        (GInstanceInitFunc) gpa_export_server_operation_init,
      };
      
      file_operation_type = g_type_register_static (GPA_EXPORT_OPERATION_TYPE,
						    "GpaExportServerOperation",
						    &file_operation_info, 0);
    }
  
  return file_operation_type;
}

/* Internal */

static gboolean
confirm_send (GtkWidget * parent, const gchar *server)
{
  GtkWidget *msgbox = gtk_message_dialog_new 
	(GTK_WINDOW(parent), GTK_DIALOG_MODAL,
	 GTK_MESSAGE_WARNING, GTK_BUTTONS_NONE, 
	 _("The selected key will be sent to a public key\n"
	   "server (\"%s\").\n"
	   "Are you sure you want to distribute this key?"),
	 server);
  gtk_dialog_add_buttons (GTK_DIALOG (msgbox),
			  _("_Yes"), GTK_RESPONSE_YES,
			  _("_No"), GTK_RESPONSE_NO, NULL);
  if (gtk_dialog_run (GTK_DIALOG (msgbox)) == GTK_RESPONSE_NO)
    {
      gtk_widget_destroy (msgbox);
      return FALSE;
    }
  gtk_widget_destroy (msgbox);
  return TRUE;
}

/* Virtual methods */

static gboolean
gpa_export_server_operation_get_destination (GpaExportOperation *operation, 
					     gpgme_data_t *dest,
					     gboolean *armor)
{
  if (confirm_send (GPA_OPERATION (operation)->window,
		    gpa_options_get_default_keyserver 
		    (gpa_options_get_instance ())))
    {
      gpg_error_t err;
      *armor = TRUE;
      err = gpgme_data_new (dest);
      if (gpg_err_code (err) != GPG_ERR_NO_ERROR)
	{
	  gpa_gpgme_warning (err);
	  return FALSE;    
	}
      else
	{
	  return TRUE;
	}
    }
  else
    {
      return FALSE;
    }
}

static void 
gpa_export_server_operation_complete_export (GpaExportOperation *operation)
{
  GpaExportServerOperation *op = GPA_EXPORT_SERVER_OPERATION (operation);
  gpgme_key_t key;
  op->server = g_strdup (gpa_options_get_default_keyserver 
			 (gpa_options_get_instance ()));
  
  key = (gpgme_key_t) operation->keys->data;
  if (server_send_keys (op->server, key->subkeys->keyid, operation->dest, 
			GPA_OPERATION (op)->window))
    {
      gpa_window_message (_("The keys have been sent to the server."),
			  GPA_OPERATION (op)->window);
    }
}

/* API */

GpaExportServerOperation*
gpa_export_server_operation_new (GtkWidget *window, GList *keys)
{
  GpaExportServerOperation *op;
  
  op = g_object_new (GPA_EXPORT_SERVER_OPERATION_TYPE,
		     "window", window,
		     "keys", keys,
		     NULL);

  return op;
}