index.php

<?php
$max_req = 4;

// ограничить кол-во запросов для сессии: 1 запрос на 4 секунд
session_start();
if ( isset($_SESSION['last_request_time']) )
{
    if ($_SESSION['request_count'] > $max_req)
    {
        #var_dump($_SESSION['last_request_time'], mktime()) ;
        if ( ($_SESSION['last_request_time'] + 3) > mktime() )
        {
            $data['error'] = "You can do 1 search query in 3 seconds. Want more? Send your suggestion to harpywar@gmail.com.";
            die ( json_encode($data) );
        }
        else{
             $_SESSION['last_request_time'] = mktime();
             $_SESSION['request_count'] = 0;
        }
    }
    else
    {
        $_SESSION['request_count']++;
    }


}
else
{
    $_SESSION['last_request_time'] = mktime();
    $_SESSION['request_count'] = 0;
}






$hash =  ( isset($_REQUEST["hash"]) ) ? $_REQUEST["hash"] : false;
$search_in = ( isset($_REQUEST["search_in"]) ) ? $_REQUEST["search_in"] : false;

if ( $hash )
{
    require_once("inc/HashCrack.class.php");

    $db_steps = 0; // кол-во шагов для поиска
    $db_size = 0; // размер бд в байтах
    $db_rows = 0; // кол-во записей
    $db_elapsed = 0; // поисковое время
    $db_bytes_read = 0; // считано байтов

    // TODO: cache? для последних 100 запросов
    //       если запрос есть в файле кеша, то отправить пароли оттуда

    // поиск в одном файле за один запрос
    switch ($search_in)
    {
        // dictionary
        case '1':
            $passList = SearchDictionary($hash);
            break;
        // 1-6 symbols
        case '2':
            $passList = SearchAlpha6($hash);
            break;
        // 7-9 symbols
        case '3':
            $passList = SearchDigits9($hash);
            break;
        // 10 symbols
        case '4':
            $passList = SearchDigits10($hash);
            break;
        default:
            $passList = false;
    }

    //$passList2 = SearchNum9($hash);
    //$passList = array_merge($passList1, $passList2);

    //var_dump($db_elapsed);
    //var_dump($passList);
    //foreach ($passList as $p)
    //  echo $p . '<br>';

    #if (!$passList)
    #   $passList = SearchNum($hash);

    $data = array
    (
        'error' => ($passList === false) ? 'Not found' : '',
        'passwords' => $passList,

        'database' => array (
            'size' => $db_size, //$db_size,
            'rows' => $db_rows,
            'steps' => $db_steps,
            'passwords_found' => count($passList),
            'bytes_read' => $db_bytes_read,
            'elapsed' => $db_elapsed
        ),
        'server' => array (
            'processor' => 'P4 3.06GHz',
            'memory' => '256Mb',
            'disk' => '250Gb',
            'os' => 'Debian 6',
            'hosted' => 'Naki-BoT'
        )

    );



    #var_dump($data);

    //$s = serialize($data);
    //echo $s;
    echo json_encode($data);
}



// искать хеш в паролях из букх и цифр 0-9a-z, 1-6 символов
function SearchAlpha6($hash)
{
    $filename = "../250g/hash_data/1-6alpha";
    $pass_length = 6;
    $pass_compressed = false;
    $hash_length = 3;
    $hash_compressed = true;
    $meta1_length = 2;
    $meta2_length = 6;

    $pass = CrackIt($hash, $filename, $pass_length, $pass_compressed, $hash_length, $hash_compressed, $meta1_length, $meta2_length);
    return $pass;
}
// искать хеш в паролях из цифр 0-9, 7-9 символов
function SearchDigits9($hash)
{
    $filename = "../250g/hash_data/7-9digits";
    $pass_length = 5;
    $pass_compressed = true;
    $hash_length = 3;
    $hash_compressed = true;
    $meta1_length = 2;
    $meta2_length = 6;

    $pass = CrackIt($hash, $filename, $pass_length, $pass_compressed, $hash_length, $hash_compressed, $meta1_length, $meta2_length);
    return $pass;
}
// искать хеш в паролях из цифр 0-9, 10 символов
function SearchDigits10($hash)
{
    $filename = "../250g/hash_data/10digits";
    $pass_length = 5;
    $pass_compressed = true;
    $hash_length = 3;
    $hash_compressed = true;
    $meta1_length = 2;
    $meta2_length = 6;

    $pass = CrackIt($hash, $filename, $pass_length, $pass_compressed, $hash_length, $hash_compressed, $meta1_length, $meta2_length);
    return $pass;
}
// искать хеш в паролях из словаря (32 символа)
function SearchDictionary($hash)
{
    $filename = "../250g/hash_data/dictionary";
    $pass_length = 32;
    $pass_compressed = false;
    $hash_length = 3;
    $hash_compressed = true;
    $meta1_length = 1;
    $meta2_length = 5;

    $pass = CrackIt($hash, $filename, $pass_length, $pass_compressed, $hash_length, $hash_compressed, $meta1_length, $meta2_length);
    return $pass;
}

function CrackIt($hash, $filename, $pass_length = 5, $pass_compressed = false, $hash_length = 3, $hash_compressed = true, $meta1_length = 2, $meta2_length = 6)
{
    global $db_steps, $db_size, $db_rows, $db_elapsed, $db_bytes_read;
    $h = new HashCrack($filename, $hash_length, $hash_compressed, $pass_length, $pass_compressed, $meta1_length, $meta2_length);
    $pass = $h->Search($hash);


    $db_size += $h->GetDbSize();
    $db_rows += $h->GetDbRows();
    $db_steps += $h->GetDbSteps();
    $db_bytes_read += $h->GetDbBytesRead();
    $db_elapsed += $h->GetDbElapsed();

    if ( $pass !== false  )
        return $pass;
    else
        return false;
}