mirror of
https://github.com/osm-search/Nominatim.git
synced 2024-11-28 05:48:36 +03:00
65 lines
2.4 KiB
PHP
65 lines
2.4 KiB
PHP
<?php
|
|
require_once('init.php');
|
|
|
|
if (CONST_NoAccessControl)
|
|
{
|
|
header("Access-Control-Allow-Origin: *");
|
|
header("Access-Control-Allow-Methods: OPTIONS,GET");
|
|
if (!empty($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']))
|
|
{
|
|
header("Access-Control-Allow-Headers: ".$_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']);
|
|
}
|
|
}
|
|
if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') exit;
|
|
|
|
if (CONST_ClosedForIndexing && strpos(CONST_ClosedForIndexingExceptionIPs, ','.$_SERVER["REMOTE_ADDR"].',') === false)
|
|
{
|
|
echo "Closed for re-indexing...";
|
|
exit;
|
|
}
|
|
|
|
$aBucketKeys = array();
|
|
|
|
if (isset($_SERVER["HTTP_REFERER"])) $aBucketKeys[] = str_replace('www.','',strtolower(parse_url($_SERVER["HTTP_REFERER"], PHP_URL_HOST)));
|
|
if (isset($_SERVER["REMOTE_ADDR"])) $aBucketKeys[] = $_SERVER["REMOTE_ADDR"];
|
|
if (isset($_GET["email"])) $aBucketKeys[] = $_GET["email"];
|
|
|
|
$fBucketVal = doBucket($aBucketKeys,
|
|
(defined('CONST_ConnectionBucket_PageType')?constant('CONST_ConnectionBucket_Cost_'.CONST_ConnectionBucket_PageType):1) + user_busy_cost(),
|
|
CONST_ConnectionBucket_LeakRate, CONST_ConnectionBucket_BlockLimit);
|
|
|
|
if ($fBucketVal > CONST_ConnectionBucket_WaitLimit && $fBucketVal < CONST_ConnectionBucket_BlockLimit)
|
|
{
|
|
$m = getBucketMemcache();
|
|
$iCurrentSleeping = $m->increment('sleepCounter');
|
|
if (false === $iCurrentSleeping)
|
|
{
|
|
$m->add('sleepCounter', 0);
|
|
$iCurrentSleeping = $m->increment('sleepCounter');
|
|
}
|
|
if ($iCurrentSleeping >= CONST_ConnectionBucket_MaxSleeping || isBucketSleeping($aBucketKeys))
|
|
{
|
|
// Too many threads sleeping already. This becomes a hard block.
|
|
$fBucketVal = doBucket($aBucketKeys, CONST_ConnectionBucket_BlockLimit, CONST_ConnectionBucket_LeakRate, CONST_ConnectionBucket_BlockLimit);
|
|
}
|
|
else
|
|
{
|
|
setBucketSleeping($aBucketKeys, true);
|
|
sleep(($fBucketVal - CONST_ConnectionBucket_WaitLimit)/CONST_ConnectionBucket_LeakRate);
|
|
$fBucketVal = doBucket($aBucketKeys, CONST_ConnectionBucket_LeakRate, CONST_ConnectionBucket_LeakRate, CONST_ConnectionBucket_BlockLimit);
|
|
setBucketSleeping($aBucketKeys, false);
|
|
}
|
|
$m->decrement('sleepCounter');
|
|
}
|
|
|
|
if (strpos(CONST_BlockedIPs, ','.$_SERVER["REMOTE_ADDR"].',') !== false || $fBucketVal >= CONST_ConnectionBucket_BlockLimit)
|
|
{
|
|
header("HTTP/1.0 429 Too Many Requests");
|
|
echo "Your IP has been blocked. \n";
|
|
echo CONST_BlockMessage;
|
|
exit;
|
|
}
|
|
|
|
header('Content-type: text/html; charset=utf-8');
|
|
|