/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * Copyright (C) 2003-2006 Imendio AB

 *

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

 * modify it under the terms of the GNU Lesser General Public License as

 * published by the Free Software Foundation; either version 2 of the

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

 *

 * This program 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

 * Lesser General Public License for more details.

 *

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

 * License along with this program; if not, see <https://www.gnu.org/licenses>

 */

#include <config.h>

#include <string.h>

#include <stdlib.h>

#include <glib.h>

#include <loudmouth/loudmouth.h>

static GMainLoop *main_loop = NULL;

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 = "test-lm";

static gchar     *fingerprint = NULL;

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 (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=test-lm]", NULL },

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

      "SSL Fingerprint to use", 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 ("TestLM: SSL status:%d\n", status);

    switch (status) {

    case LM_SSL_STATUS_NO_CERT_FOUND:

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

        break;

    case LM_SSL_STATUS_UNTRUSTED_CERT:

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

        break;

    case LM_SSL_STATUS_CERT_EXPIRED:

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

        break;

    case LM_SSL_STATUS_CERT_NOT_ACTIVATED:

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

        break;

    case LM_SSL_STATUS_CERT_HOSTNAME_MISMATCH:

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

        g_printerr ("TestLM: Remote fingerprint: ");

        print_finger (fpr, 16);

        g_printerr ("\n"

                    "TestLM: Expected fingerprint: ");

        print_finger (expected_fingerprint, 16);

        g_printerr ("\n");

        break;

    }

    case LM_SSL_STATUS_GENERIC_ERROR:

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

        break;

    }

    return LM_SSL_RESPONSE_CONTINUE;

}

static void

connection_auth_cb (LmConnection *connection,

                    gboolean      success,

                    gpointer      user_data)

{

    if (success) {

        LmMessage *m;

        test_success = TRUE;

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

        m = lm_message_new_with_sub_type (NULL,

                                          LM_MESSAGE_TYPE_PRESENCE,

                                          LM_MESSAGE_SUB_TYPE_AVAILABLE);

        lm_connection_send (connection, m, NULL);

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

                 lm_message_node_to_string (m->node));

        lm_message_unref (m);

    } else {

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

        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);

        lm_connection_authenticate (connection, user,

                                    password, resource,

                                    connection_auth_cb,

                                    NULL, FALSE,  NULL);

        g_free (user);

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

    } else {

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

        g_main_loop_quit (main_loop);

    }

}

static void

connection_close_cb (LmConnection       *connection,

                     LmDisconnectReason  reason,

                     gpointer            user_data)

{

    const char *str;

    switch (reason) {

    case LM_DISCONNECT_REASON_OK:

        str = "LM_DISCONNECT_REASON_OK";

        break;

    case LM_DISCONNECT_REASON_PING_TIME_OUT:

        str = "LM_DISCONNECT_REASON_PING_TIME_OUT";

        break;

    case LM_DISCONNECT_REASON_HUP:

        str = "LM_DISCONNECT_REASON_HUP";

        break;

    case LM_DISCONNECT_REASON_ERROR:

        str = "LM_DISCONNECT_REASON_ERROR";

        break;

    case LM_DISCONNECT_REASON_UNKNOWN:

    default:

        str = "LM_DISCONNECT_REASON_UNKNOWN";

        break;

    }

    g_print ("TestLM: Disconnected, reason:%d->'%s'\n", reason, str);

}

static LmHandlerResult

handle_messages (LmMessageHandler *handler,

                 LmConnection     *connection,

                 LmMessage        *m,

                 gpointer          user_data)

{

    g_print ("TestLM: Incoming message from: %s\n",

             lm_message_node_get_attribute (m->node, "from"));

    return LM_HANDLER_RESULT_REMOVE_MESSAGE;

}

int

main (int argc, char **argv)

{

    GOptionContext   *context;

    LmConnection     *connection;

    LmMessageHandler *handler;

    gboolean          result;

    GError           *error = NULL;

    context = g_option_context_new ("- test Loudmouth");

    g_option_context_add_main_entries (context, entries, NULL);

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

    g_option_context_free (context);

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

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

        return EXIT_FAILURE;

    }

    if (fingerprint && !lm_ssl_is_supported ()) {

        g_printerr ("TestLM: SSL is not supported in this build\n");

        return EXIT_FAILURE;

    }

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

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

        return EXIT_FAILURE;

    }

    connection = lm_connection_new (server);

    lm_connection_set_port (connection, port);

    lm_connection_set_jid (connection, username);

    handler = lm_message_handler_new (handle_messages, NULL, NULL);

    lm_connection_register_message_handler (connection, handler,

                                            LM_MESSAGE_TYPE_MESSAGE,

                                            LM_HANDLER_PRIORITY_NORMAL);

    lm_message_handler_unref (handler);

    lm_connection_set_disconnect_function (connection,

                                           connection_close_cb,

                                           NULL, NULL);

    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_ssl_use_starttls (ssl, TRUE, FALSE);

        lm_connection_set_ssl (connection, ssl);

        lm_ssl_unref (ssl);

    }

    result = lm_connection_open (connection,

                                 (LmResultFunction) connection_open_cb,

                                 NULL, NULL, &error);

    if (!result) {

        g_printerr ("TestLM: Opening connection failed, error:%d->'%s'\n",

                    error->code, error->message);

        g_free (error);

        return EXIT_FAILURE;

    }

    main_loop = g_main_loop_new (NULL, FALSE);

    g_main_loop_run (main_loop);

    return (test_success ? EXIT_SUCCESS : EXIT_FAILURE);

}