lib/init-website.php

   1 <?php
   2         require_once('init.php');
   3
   4         if (CONST_ClosedForIndexing && strpos(CONST_ClosedForIndexingExceptionIPs, ','.$_SERVER["REMOTE_ADDR"].',') === false)
   5         {
   6                 echo "Closed for re-indexing...";
   7                 exit;
   8         }
   9
  10         $aBucketKeys = array();
  11
  12         if (isset($_SERVER["HTTP_REFERER"])) $aBucketKeys[] = str_replace('www.','',strtolower(parse_url($_SERVER["HTTP_REFERER"], PHP_URL_HOST)));
  13         if (isset($_SERVER["REMOTE_ADDR"])) $aBucketKeys[] = $_SERVER["REMOTE_ADDR"];
  14         if (isset($_GET["email"])) $aBucketKeys[] = $_GET["email"];
  15
  16         $fBucketVal = doBucket($aBucketKeys,
  17                         (defined('CONST_ConnectionBucket_PageType')?constant('CONST_ConnectionBucket_Cost_'.CONST_ConnectionBucket_PageType):1) + user_busy_cost(),
  18                         CONST_ConnectionBucket_LeakRate, CONST_ConnectionBucket_BlockLimit);
  19
  20         if ($fBucketVal > CONST_ConnectionBucket_WaitLimit && $fBucketVal < CONST_ConnectionBucket_BlockLimit)
  21         {
  22                 $m = getBucketMemcache();
  23                 $iCurrentSleeping = $m->increment('sleepCounter');
  24                 if (false === $iCurrentSleeping)
  25                 {
  26                         $m->add('sleepCounter', 0);
  27                         $iCurrentSleeping = $m->increment('sleepCounter');
  28                 }
  29                 if ($iCurrentSleeping >= CONST_ConnectionBucket_MaxSleeping)
  30                 {
  31                         // Too many threads sleeping already.  This becomes a hard block.
  32                         $fBucketVal = doBucket($aBucketKeys, CONST_ConnectionBucket_BlockLimit, CONST_ConnectionBucket_LeakRate, CONST_ConnectionBucket_BlockLimit);
  33                 }
  34                 else
  35                 {
  36                         sleep(($fBucketVal - CONST_ConnectionBucket_WaitLimit)/CONST_ConnectionBucket_LeakRate);
  37                         $fBucketVal = doBucket($aBucketKeys, CONST_ConnectionBucket_LeakRate, CONST_ConnectionBucket_LeakRate, CONST_ConnectionBucket_BlockLimit);
  38                 }
  39                 $m->decrement('sleepCounter');
  40         }
  41
  42         if (strpos(CONST_BlockedIPs, ','.$_SERVER["REMOTE_ADDR"].',') !== false || $fBucketVal >= CONST_ConnectionBucket_BlockLimit)
  43         {
  44                 echo "Your IP has been blocked. \n";
  45                 echo "Please create a nominatim trac ticket (http://trac.openstreetmap.org/newticket?component=nominatim) to request this to be removed. \n";
  46                 echo "Information on the Nominatim usage policy can be found here: http://wiki.openstreetmap.org/wiki/Nominatim#Usage_Policy \n";
  47                 exit;
  48         }
  49
  50         header('Content-type: text/html; charset=utf-8');