/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

/*

 * Copyright (C) 2004 Imendio AB

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library 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

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public

 * License along with this library; if not, write to the

 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 */

/* 

 * Small tool to change password on an account

 */

#include <loudmouth/loudmouth.h>

#include <string.h>

static LmSSLResponse 

ssl_func (LmSSL        *ssl,

	  LmSSLStatus   status,

	  gpointer      user_data)

{

	return LM_SSL_RESPONSE_CONTINUE;

}

static void

print_usage (const gchar *exec_name)

{

	g_print ("Usage: %s <server> <username> <oldpassword> <newpassword> [--ssl] [--host <host>]\n",

		 exec_name);

}

int 

main (int argc, char **argv)

{

	LmConnection  *connection;

	const gchar   *server;

	const gchar   *username;

	const gchar   *old_pass;

	const gchar   *new_pass;

	const gchar   *host;

	GError        *error = NULL;

	LmMessage     *m;

	LmMessage     *reply;

	LmMessageNode *query;

	gboolean       use_ssl = FALSE;

	if (argc < 5) {

		print_usage (argv[0]);

		return -1;

	}

	server = argv[1];

	username = argv[2];

	old_pass = argv[3];

	new_pass = argv[4];

	host = NULL;

	if (argc >= 5) {

		int i;

		for (i = 5; i < argc; ++i) {

			if (strcmp (argv[i], "-s") == 0 ||

			    strcmp (argv[i], "--ssl") == 0) {

				use_ssl = TRUE;

			}

			else if (strcmp (argv[i], "-h") == 0 ||

				 strcmp (argv[i], "--host") == 0) {

				if (++i >= argc) {

					print_usage (argv[0]);

					return -1;

				} 

				host = argv[i];

				g_print ("HOST: %s\n", host);

			}

		}

	}

	connection = lm_connection_new (server);

	if (host) {

		gchar *jid;

		jid = g_strdup_printf ("%s@%s", username, host);

		g_print ("Setting jid to %s\n", jid);

		lm_connection_set_jid (connection, jid);

		g_free (jid);

	}

	if (use_ssl) {

		LmSSL *ssl;

		if (!lm_ssl_is_supported ()) {

			g_print ("This loudmouth installation doesn't support SSL\n");

			return 1;

		}

		g_print ("Setting ssl\n");

		ssl = lm_ssl_new (NULL, ssl_func, NULL, NULL);

		lm_connection_set_ssl (connection, ssl);

		lm_ssl_unref (ssl);

		lm_connection_set_port (connection,

					LM_CONNECTION_DEFAULT_PORT_SSL);

	}

	if (!lm_connection_open_and_block (connection, &error)) {

		g_error ("Failed to open: %s\n", error->message);

	}

	if (!lm_connection_authenticate_and_block (connection,

						   username, old_pass, 

						   "Password changer",

						   &error)) {

		g_error ("Failed to authenticate: %s\n", error->message);

	}

	m = lm_message_new_with_sub_type (NULL, LM_MESSAGE_TYPE_IQ, 

					 LM_MESSAGE_SUB_TYPE_SET);

	query = lm_message_node_add_child (m->node, "query", NULL);

	lm_message_node_set_attributes (query, "xmlns", "jabber:iq:register",

					NULL);

	lm_message_node_add_child (query, "username", username);

	lm_message_node_add_child (query, "password", new_pass);

	reply = lm_connection_send_with_reply_and_block (connection, m, &error);

	if (!reply) {

		g_error ("Failed to change password: %s\n", error->message);

	}	

	if (lm_message_get_sub_type (reply) == LM_MESSAGE_SUB_TYPE_RESULT) {

		g_print ("Password changed\n");

	} else {

		g_print ("Failed to change password\n");

		/* If this wasn't only an example we should check error code

		 * here to tell the user why it failed */

	}

	lm_connection_close (connection, NULL);

	return 0;

}