FrontlineSMS to WordPress Posts

frontlinesms-posts.php

<?php

/*
 * Plugin Name: FrontlineSMS-Posts
 * Plugin URI: https://gist.github.com/1617749
 * Description: Plugin to create WordPress post from Frontline SMS, based on a plugin by Kaka E. Prakasa ( https://github.com/pr4ka5a/wp-frontlinesms_posts/ )
 * Author: AxWax
 * Version: 0.1
 * Author URI: http://axwax.de
 */

// create unique key when installing plugin 
function frontlinesms_posts_install()
{
    add_option( 'frontlinesms_posts_key', generateRandomString(8));    
}
register_activation_hook(__FILE__,'frontlinesms_posts_install');

// settings page
function frontlinesms_posts_options()
{
    echo "Set up an <b>External Command</b> for your keyword, select <b>HTTP request and paste the following string into the Command field:<br/><b>http://" . $_SERVER['HTTP_HOST'] . "/index.php?s=\${sender_number}&m=\${message_content}&k=" . get_option('frontlinesms_posts_key') . " </b>";
}

// create submenu of settings menu
function frontlinesms_posts_admin_menu()
{
    add_options_page('FrontlineSMS Posts','FrontlineSMS Posts','manage_options','FrontlineSMS-Posts','frontlinesms_posts_options');
}
add_action('admin_menu', 'frontlinesms_posts_admin_menu');


//Retrieve post from FrontlineSMS
function frontline_post($args)
{
    if (isset($_SERVER['QUERY_STRING']))
    {
        // set default values
        $default = array (
            's' => '',
            'm' => '',
            'k' => ''
            );
            
        $dt = date("Y-m-d H:i:s");

        // parse query string
        $args = wp_parse_args( $args, $default);
        extract( $args, EXTR_SKIP);

        if(!empty($s) AND !empty($m) AND !empty($k))
        {
            if($k == get_option('frontlinesms_posts_key'))
            {
                                    
                // create post
                $gmt_date=$dt;
                $post = array(
                    'post_content' => $m,
                    'post_status' => 'draft',
                    'post_date_gmt' => $gmt_date,
                    'post_date' => get_date_from_gmt( $gmt_date ),
                    'post_author' => 1,
                    'post_title' => $m
                );
                $post_id = wp_insert_post( $post );
            }
        }
    }
}

frontline_post($_SERVER['QUERY_STRING']);

function generateRandomString($length)
{
        $result = '';
              
         $num = rand(0,26);
         $result .= substr(md5(microtime()),$num,$length);
                   
         return $result;
}
?>