website/reverse.php

   1 <?php
   2         require_once(dirname(dirname(__FILE__)).'/lib/init-website.php');
   3         require_once(CONST_BasePath.'/lib/log.php');
   4
   5         $oDB =& getDB();
   6
   7         if (strpos(CONST_BulkUserIPs, ','.$_SERVER["REMOTE_ADDR"].',') !== false)
   8         {
   9                 $fLoadAvg = getLoadAverage();
  10                 if ($fLoadAvg > 2) sleep(60);
  11                 if ($fLoadAvg > 4) sleep(120);
  12                 if ($fLoadAvg > 6)
  13                 {
  14                         echo "Bulk User: Temporary block due to high server load\n";
  15                         exit;
  16                 }
  17         }
  18
  19         ini_set('memory_limit', '200M');
  20
  21         // Format for output
  22         $sOutputFormat = 'xml';
  23         if (isset($_GET['format']) && ($_GET['format'] == 'xml' || $_GET['format'] == 'json' || $_GET['format'] == 'jsonv2'))
  24         {
  25                 $sOutputFormat = $_GET['format'];
  26         }
  27
  28         // Prefered language
  29         $aLangPrefOrder = getPrefferedLangauges();
  30         $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$aLangPrefOrder))."]";
  31
  32         $hLog = logStart($oDB, 'reverse', $_SERVER['QUERY_STRING'], $aLangPrefOrder);
  33
  34         if (isset($_GET['osm_type']) && isset($_GET['osm_id']) && (int)$_GET['osm_id'] && ($_GET['osm_type'] == 'N' || $_GET['osm_type'] == 'W' || $_GET['osm_type'] == 'R'))
  35         {
  36                 $iPlaceID = $oDB->getOne("select place_id from placex where osm_type = '".$_GET['osm_type']."' and osm_id = ".(int)$_GET['osm_id']." order by type = 'postcode' asc");
  37                 if (!$iPlaceID) $sError = 'OSM ID Not Found';
  38         }
  39         else
  40         {
  41                 // Location to look up
  42                 $fLat = (float)$_GET['lat'];
  43                 $fLon = (float)$_GET['lon'];
  44                 $sPointSQL = "ST_SetSRID(ST_Point($fLon,$fLat),4326)";
  45
  46                 // Zoom to rank, this could probably be calculated but a lookup gives fine control
  47                 $aZoomRank = array(
  48                         0 => 2, // Continent / Sea
  49                         1 => 2,
  50                         2 => 2,
  51                         3 => 4, // Country
  52                         4 => 4,
  53                         5 => 8, // State
  54                         6 => 10, // Region
  55                         7 => 10,
  56                         8 => 12, // County
  57                         9 => 12,
  58                         10 => 17, // City
  59                         11 => 17,
  60                         12 => 18, // Town / Village
  61                         13 => 18,
  62                         14 => 22, // Suburb
  63                         15 => 22,
  64                         16 => 26, // Street, TODO: major street?
  65                         17 => 26,
  66                         18 => 30, // or >, Building
  67                         19 => 30, // or >, Building
  68                         );
  69                 $iMaxRank = isset($aZoomRank[$_GET['zoom']])?$aZoomRank[$_GET['zoom']]:28;
  70
  71                 // Find the nearest point
  72                 $fSearchDiam = 0.0001;
  73                 $iPlaceID = null;
  74                 $aArea = false;
  75                 $fMaxAreaDistance = 10;
  76                 while(!$iPlaceID && $fSearchDiam < $fMaxAreaDistance)
  77                 {
  78                         $fSearchDiam = $fSearchDiam * 2;
  79
  80                         // If we have to expand the search area by a large amount then we need a larger feature
  81                         // then there is a limit to how small the feature should be
  82                         if ($fSearchDiam > 2 && $iMaxRank > 4) $iMaxRank = 4;
  83                         if ($fSearchDiam > 1 && $iMaxRank > 9) $iMaxRank = 8;
  84                         if ($fSearchDiam > 0.8 && $iMaxRank > 10) $iMaxRank = 10;
  85                         if ($fSearchDiam > 0.6 && $iMaxRank > 12) $iMaxRank = 12;
  86                         if ($fSearchDiam > 0.2 && $iMaxRank > 17) $iMaxRank = 17;
  87                         if ($fSearchDiam > 0.1 && $iMaxRank > 18) $iMaxRank = 18;
  88                         if ($fSearchDiam > 0.008 && $iMaxRank > 22) $iMaxRank = 22;
  89                         if ($fSearchDiam > 0.001 && $iMaxRank > 26) $iMaxRank = 26;
  90
  91                         $sSQL = 'select place_id,parent_place_id from placex';
  92                         $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
  93                         $sSQL .= ' and rank_search != 28 and rank_search >= '.$iMaxRank;
  94                         $sSQL .= ' and (name is not null or housenumber is not null)';
  95                         $sSQL .= ' and class not in (\'waterway\')';
  96                         $sSQL .= ' and (ST_GeometryType(geometry) not in (\'ST_Polygon\',\'ST_MultiPolygon\') ';
  97                         $sSQL .= ' OR ST_DWithin('.$sPointSQL.', ST_Centroid(geometry), '.$fSearchDiam.'))';
  98                         $sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', geometry) ASC limit 1';
  99 //var_dump($sSQL);
 100                         $aPlace = $oDB->getRow($sSQL);
 101                         $iPlaceID = $aPlace['place_id'];
 102                         if (PEAR::IsError($iPlaceID))
 103                         {
 104                                 var_Dump($sSQL, $iPlaceID);
 105                                 exit;
 106                         }
 107                 }
 108
 109                 // The point we found might be too small - use the address to find what it is a child of
 110                 $sSQL = "select address_place_id from place_addressline where cached_rank_address <= $iMaxRank and place_id = $iPlaceID order by cached_rank_address desc,isaddress desc,distance desc";
 111 //var_dump($sSQL);
 112                 $iPlaceID = $oDB->getOne($sSQL);
 113                 if (PEAR::IsError($iPlaceID))
 114                 {
 115                         var_Dump($sSQL, $iPlaceID);
 116                         exit;
 117                 }
 118                 if ($iPlaceID && $aPlace['place_id'] && $iMaxRank < 28)
 119                 {
 120                         $sSQL = "select address_place_id from place_addressline where cached_rank_address <= $iMaxRank and place_id = ".$aPlace['place_id']." order by cached_rank_address desc,isaddress desc,distance desc";
 121 //var_dump($sSQL);
 122                         $iPlaceID = $oDB->getOne($sSQL);
 123                         if (PEAR::IsError($iPlaceID))
 124                         {
 125                                 var_Dump($sSQL, $iPlaceID);
 126                                 exit;
 127                         }
 128                 }
 129                 if (!$iPlaceID)
 130                 {
 131                         $iPlaceID = $aPlace['place_id'];
 132                 }
 133         }
 134
 135         if ($iPlaceID)
 136         {
 137                 $sSQL = "select placex.*,";
 138                 $sSQL .= " get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
 139                 $sSQL .= " get_name_by_language(name, $sLanguagePrefArraySQL) as placename,";
 140                 $sSQL .= " get_name_by_language(name, ARRAY['ref']) as ref";
 141                 $sSQL .= " from placex where place_id = $iPlaceID ";
 142                 $aPlace = $oDB->getRow($sSQL);
 143
 144                 $aAddress = getAddressDetails($oDB, $sLanguagePrefArraySQL, $iPlaceID, $aPlace['country_code']);
 145
 146                 $aClassType = getClassTypes();
 147                 $sAddressType = '';
 148                 if (isset($aClassType[$aPlace['class'].':'.$aPlace['type'].':'.$aPlace['admin_level']]))
 149                         $sAddressType = $aClassType[$aPlace['class'].':'.$aPlace['type'].':'.$aPlace['admin_level']]['simplelabel'];
 150                 elseif (isset($aClassType[$aPlace['class'].':'.$aPlace['type']]))
 151                         $sAddressType = $aClassType[$aPlace['class'].':'.$aPlace['type']]['simplelabel'];
 152                 else $sAddressType = $aPlace['class'];
 153                 $aPlace['addresstype'] = $sAddressType;
 154
 155         }
 156         include(CONST_BasePath.'/lib/template/address-'.$sOutputFormat.'.php');