strpos(CONST_WhitelistedIPs, ','.$_SERVER["REMOTE_ADDR"].',') === false)
{
- if (strpos(CONST_BlockedIPs, ','.$_SERVER["REMOTE_ADDR"].',') !== false)
- {
- header('HTTP/1.0 403 Forbidden');
- header('Content-type: text/html; charset=utf-8');
- echo "<html><body><h1>Access blocked</h1>";
- echo "Your IP has been blocked for overusing OpenStreetMap's volunteer-run servers.<br> \n";
- echo 'Please consult the <a href="http://wiki.openstreetmap.org/wiki/Nominatim_usage_policy">Nominatim usage policy</a> for more information.';
- echo "\n</body></html>\n";
- exit;
- }
+ $aBucketKeys = array();
- $sTempBlockedIP = file_get_contents(CONST_IPBanFile);
- if (preg_match('/\b'.$_SERVER["REMOTE_ADDR"].'\b/', $sTempBlockedIP))
- {
- header('HTTP/1.0 503 Service Temporarily Unavailable');
- header('Content-type: text/html; charset=utf-8');
- echo "<html><body><h1>Access blocked</h1>";
- echo "Your IP has been blocked temporarily for overusing OpenStreetMap's volunteer-run servers. This ban will be lifted automatically in a while. To avoid further blocks, please read the<br> \n";
- echo '<a href="http://wiki.openstreetmap.org/wiki/Nominatim_usage_policy">Nominatim usage policy</a> carefully before you continue to use this service.';
- echo "\n</body></html>\n";
- exit;
- }
+ if (isset($_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;
+ }