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znanl/search.php

Forked from vibbow/search.php
Last active August 29, 2015 14:06
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Revisions

  1. @vibbow vibbow created this gist Jan 22, 2014.
    95 changes: 95 additions & 0 deletions search.php
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,95 @@
    <?php
    define ('DB_SOURCE', 'd:\\data');
    define ('CACHE_LIMIT', 4194304);
    define ('RESULT_LIMIT', 1000);
    define ('TIME_LIMIT', 600);

    $begin = microtime(true);
    set_time_limit(TIME_LIMIT + 100);
    ob_end_flush();

    echo <<< EOF
    <html><head>
    <meta http-equiv="Content-Type" content="text/html; charset=GBK" />
    <title>Full text search</title>
    </head><body>
    <form method="get" action="">
    <input type="text" name="keyword" />
    <input type="submit" />
    </form>
    EOF;
    flush();

    $keyword = isset($_REQUEST['keyword']) ? trim($_REQUEST['keyword']) : '';
    if (empty($keyword)) exit('</body></html>');

    $filelist = array();
    get_file_list(DB_SOURCE . '\\*');
    $count = 0;

    echo 'Search ' . $keyword . ' in ' . count($filelist) . " leak databases ...<br />\r\n";
    flush();

    foreach ($filelist as $filepath) {
    $fp = fopen($filepath, 'r');
    if (!$fp) continue;

    $basename = basename($filepath);
    $filesize = filesize($filepath);
    $fp_start_pos = 0;

    while($fp_start_pos !== $filesize) {
    fseek($fp, $fp_start_pos);
    $content = fread($fp, CACHE_LIMIT);
    $content_length = strlen($content);

    if ($fp_start_pos + $content_length !== $filesize) {
    $content_length = strrpos($content, "\n") + 1;
    $content = substr($content, 0, $content_length);
    }

    $fp_start_pos += $content_length;

    $keyword_pos = 0;
    while (($keyword_pos = strpos($content, $keyword, $keyword_pos)) !== false)
    {
    $start_pos = strrpos($content, "\n", -$content_length + $keyword_pos);
    $end_pos = strpos($content, "\n", $keyword_pos);
    if ($end_pos === FALSE) $end_pos = $content_length;
    echo $basename . ' | ' . trim(substr($content, $start_pos, $end_pos - $start_pos)) . "<br />\r\n";
    flush();
    $keyword_pos = $end_pos;
    $count++;
    if ($count >= RESULT_LIMIT) break;
    }
    if ($count >= RESULT_LIMIT) break;
    }

    fclose($fp);
    if ($count >= RESULT_LIMIT) break;
    if ((microtime(true) - $begin) >= TIME_LIMIT) break;
    }

    if ($count >= RESULT_LIMIT)
    echo "Too many results, give up<br />\r\n";

    if ((microtime(true) - $begin) >= TIME_LIMIT)
    echo "Search time out, give up<br />\r\n";

    echo 'Search complete, get ' . $count . ' results, cost ' . (microtime(true) - $begin) . " seconds<br />\r\n";
    echo '</body></html>';
    flush();

    function get_file_list($dbsource) {
    global $filelist;
    $current_file_list = glob($dbsource);
    foreach ($current_file_list as $each) {
    if (strpos($each, 'search.php') === true)
    continue;
    if (is_file($each))
    $filelist[] = $each;
    if (is_dir($each))
    get_file_list($each . '\\*');
    }
    }
    ?>