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

/*

 * Copyright (C) 2003-2006 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.

 */

/*

 * Description:

 * A little program that let you send jabber messages to another person.

 * 

 * Build instructions:

 * gcc -o lm-send-async `pkg-config --cflags --libs loudmouth-1.0` lm-send-async.c

 */

#include <stdlib.h>

#include <string.h>

#include <loudmouth/loudmouth.h>

static GMainLoop *main_loop;

static gboolean   test_success = FALSE;

static gchar      expected_fingerprint[20];

static gchar     *server = NULL;

static gint       port = 5222;

static gchar     *username = NULL;

static gchar     *password = NULL;

static gchar     *resource = "lm-send-async";

static gchar     *recipient = NULL;

static gchar     *fingerprint = NULL;

static gchar     *message = "test asynchronous message";

static GOptionEntry entries[] = 

{

  { "server", 's', 0, G_OPTION_ARG_STRING, &server, 

    "Server to connect to", NULL },

  { "port", 'P', 0, G_OPTION_ARG_INT, &port, 

    "Port to connect to [default=5222]", NULL },

  { "username", 'u', 0, G_OPTION_ARG_STRING, &username, 

    "Username to connect with (e.g. 'user' in user@server.org)", NULL },

  { "password", 'p', 0, G_OPTION_ARG_STRING, &password, 

    "Password to try", NULL },

  { "resource", 'r', 0, G_OPTION_ARG_STRING, &resource, 

    "Resource connect with [default=lm-send-async]", NULL },

  { "recipient", 'R', 0, G_OPTION_ARG_STRING, &recipient, 

    "Recipient to send the message to (e.g. user@server.org)", NULL },

  { "fingerprint", 'f', 0, G_OPTION_ARG_STRING, &fingerprint, 

    "SSL Fingerprint to use", NULL },

  { "message", 'm', 0, G_OPTION_ARG_STRING, &message, 

    "Message to send to recipient [default=test message]", NULL },

  { NULL }

};

static gchar *

get_part_name (const gchar *username)

{

	const gchar *ch;

	g_return_val_if_fail (username != NULL, NULL);

	ch = strchr (username, '@');

	if (!ch) {

		return NULL;

	}

	return g_strndup (username, ch - username);

}

static void

print_finger (const char   *fpr,

	      unsigned int  size)

{

	gint i;

	for (i = 0; i < size-1; i++) {

		g_printerr ("%02X:", fpr[i]);

	}

	g_printerr ("%02X", fpr[size-1]);

}

static LmSSLResponse

ssl_cb (LmSSL       *ssl, 

	LmSSLStatus  status, 

	gpointer     ud)

{

	g_print ("LmSendAsync: SSL status:%d\n", status);

	switch (status) {

	case LM_SSL_STATUS_NO_CERT_FOUND:

		g_printerr ("LmSendAsync: No certificate found!\n");

		break;

	case LM_SSL_STATUS_UNTRUSTED_CERT:

		g_printerr ("LmSendAsync: Certificate is not trusted!\n"); 

		break;

	case LM_SSL_STATUS_CERT_EXPIRED:

		g_printerr ("LmSendAsync: Certificate has expired!\n"); 

		break;

	case LM_SSL_STATUS_CERT_NOT_ACTIVATED:

		g_printerr ("LmSendAsync: Certificate has not been activated!\n"); 

		break;

	case LM_SSL_STATUS_CERT_HOSTNAME_MISMATCH:

		g_printerr ("LmSendAsync: Certificate hostname does not match expected hostname!\n"); 

		break;

	case LM_SSL_STATUS_CERT_FINGERPRINT_MISMATCH: {

		const char *fpr = lm_ssl_get_fingerprint (ssl);

		g_printerr ("LmSendAsync: Certificate fingerprint does not match expected fingerprint!\n"); 

		g_printerr ("LmSendAsync: Remote fingerprint: ");

		print_finger (fpr, 16);

		g_printerr ("\n"

			    "LmSendAsync: Expected fingerprint: ");

		print_finger (expected_fingerprint, 16);

		g_printerr ("\n");

		break;

	}

	case LM_SSL_STATUS_GENERIC_ERROR:

		g_printerr ("LmSendAsync: Generic SSL error!\n"); 

		break;

	}

	return LM_SSL_RESPONSE_CONTINUE;

}

static void

connection_auth_cb (LmConnection *connection, 

                    gboolean      success, 

                    gpointer      user_data)

{

	if (success) {

		GError    *error = NULL;

		LmMessage *m;

		g_print ("LmSendAsync: Authenticated successfully\n");

		m = lm_message_new (recipient, LM_MESSAGE_TYPE_MESSAGE);

		lm_message_node_add_child (m->node, "body", message);

		if (!lm_connection_send (connection, m, &error)) {

			g_printerr ("LmSendAsync: Failed to send message:'%s'\n", 

				 lm_message_node_to_string (m->node));

		} else {

			g_print ("LmSendAsync: Sent message:'%s'\n", 

				 lm_message_node_to_string (m->node));

			test_success = TRUE;

		}

		lm_message_unref (m);

	} else {

		g_printerr ("LmSendAsync: Failed to authenticate\n");

	}

	lm_connection_close (connection, NULL);

	g_main_loop_quit (main_loop);

}

static void

connection_open_cb (LmConnection *connection,

		    gboolean      success,

		    gpointer      user_data)

{

	if (success) {

		gchar *user;

		user = get_part_name (username);

		if (!lm_connection_authenticate (connection, user, 

						 password, resource,

						 connection_auth_cb, 

						 NULL, FALSE,  NULL)) {

			g_free (user);

			g_printerr ("LmSendAsync: Failed to send authentication\n");

			g_main_loop_quit (main_loop);

			return;

		}

		g_free (user);

		g_print ("LmSendAsync: Sent authentication message\n");

	} else {

		g_printerr ("LmSendAsync: Failed to connect\n");

		g_main_loop_quit (main_loop);

	}

}

int

main (int argc, char **argv)

{

	GMainContext   *main_context;

	GOptionContext *context;

        LmConnection   *connection;

	context = g_option_context_new ("- test send message asynchronously");

	g_option_context_add_main_entries (context, entries, NULL);

	g_option_context_parse (context, &argc, &argv, NULL);

	g_option_context_free (context);

	if (!username || !password || !recipient) {

		g_printerr ("For usage, try %s --help\n", argv[0]);

		return EXIT_FAILURE;

	}

	if (username && strchr (username, '@') == NULL) {

		g_printerr ("LmSendAsync: Username must have an '@' included\n");

		return EXIT_FAILURE;

	}

	main_context = g_main_context_new ();

        connection = lm_connection_new_with_context (server, main_context);

	lm_connection_set_port (connection, port);

	lm_connection_set_jid (connection, username);

	if (fingerprint) {

		LmSSL *ssl;

		char  *p;

		int    i;

		if (port == LM_CONNECTION_DEFAULT_PORT) {

			lm_connection_set_port (connection,

						LM_CONNECTION_DEFAULT_PORT_SSL);

		}

		for (i = 0, p = fingerprint; *p && *(p+1); i++, p += 3) {

			expected_fingerprint[i] = (unsigned char) g_ascii_strtoull (p, NULL, 16);

		}

		ssl = lm_ssl_new (expected_fingerprint,

				  (LmSSLFunction) ssl_cb,

				  NULL, NULL);

		lm_connection_set_ssl (connection, ssl);

		lm_ssl_unref (ssl);

	}

	if (!lm_connection_open (connection, 

                                 (LmResultFunction) connection_open_cb,

                                 NULL, NULL, NULL)) {

                g_printerr ("LmSendAsync: Could not open a connection\n");

		return EXIT_FAILURE;

        }

        main_loop = g_main_loop_new (main_context, FALSE);

        g_main_loop_run (main_loop);

	return (test_success ? EXIT_SUCCESS : EXIT_FAILURE);

}