]> git.openstreetmap.org Git - nominatim.git/blobdiff - lib/init-website.php
Merge remote-tracking branch 'upstream/master'
[nominatim.git] / lib / init-website.php
index 6db2ac374d995837b2aac2dcb9861ec6922945b6..ef8237fbfa7d4fbc6d968fc243d3978ff18c169b 100644 (file)
@@ -8,27 +8,44 @@
         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;
+       }