- 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)
- {
- echo "Your IP has been blocked. \n";
- echo "Please create a nominatim trac ticket (http://trac.openstreetmap.org/newticket?component=nominatim) to request this to be removed. \n";
- echo "Information on the Nominatim usage policy can be found here: http://wiki.openstreetmap.org/wiki/Nominatim#Usage_Policy \n";
- exit;
- }
-
- header('Content-type: text/html; charset=utf-8');
-