0) { $fLoadAvg = getLoadAverage(); if ($fLoadAvg >= CONST_BlockReverseMaxLoad) { header('HTTP/1.0 403 Forbidden'); header('Content-type: text/html; charset=utf-8'); echo "

App temporarily blocked

"; echo "Your application has been temporarily blocked from the OpenStreetMap Nominatim "; echo "geolocation service due to high server load."; echo "\n\n"; exit; } } if (strpos(CONST_BulkUserIPs, ','.$_SERVER["REMOTE_ADDR"].',') !== false) { $fLoadAvg = getLoadAverage(); if ($fLoadAvg > 2) sleep(60); if ($fLoadAvg > 4) sleep(120); if ($fLoadAvg > 6) { echo "Bulk User: Temporary block due to high server load\n"; exit; } } $oDB =& getDB(); ini_set('memory_limit', '200M'); // Format for output $sOutputFormat = 'xml'; if (isset($_GET['format']) && ($_GET['format'] == 'xml' || $_GET['format'] == 'json' || $_GET['format'] == 'jsonv2')) { $sOutputFormat = $_GET['format']; } // Show address breakdown $bShowAddressDetails = true; if (isset($_GET['addressdetails'])) $bShowAddressDetails = (bool)$_GET['addressdetails']; // Prefered language $aLangPrefOrder = getPrefferedLangauges(); $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$aLangPrefOrder))."]"; $hLog = logStart($oDB, 'reverse', $_SERVER['QUERY_STRING'], $aLangPrefOrder); if (isset($_GET['osm_type']) && isset($_GET['osm_id']) && (int)$_GET['osm_id'] && ($_GET['osm_type'] == 'N' || $_GET['osm_type'] == 'W' || $_GET['osm_type'] == 'R')) { $iPlaceID = $oDB->getOne("select place_id from placex where osm_type = '".$_GET['osm_type']."' and osm_id = ".(int)$_GET['osm_id']." order by type = 'postcode' asc"); if (!$iPlaceID) $sError = 'OSM ID Not Found'; } else { // Location to look up $fLat = (float)$_GET['lat']; $fLon = (float)$_GET['lon']; $sPointSQL = "ST_SetSRID(ST_Point($fLon,$fLat),4326)"; // Zoom to rank, this could probably be calculated but a lookup gives fine control $aZoomRank = array( 0 => 2, // Continent / Sea 1 => 2, 2 => 2, 3 => 4, // Country 4 => 4, 5 => 8, // State 6 => 10, // Region 7 => 10, 8 => 12, // County 9 => 12, 10 => 17, // City 11 => 17, 12 => 18, // Town / Village 13 => 18, 14 => 22, // Suburb 15 => 22, 16 => 26, // Street, TODO: major street? 17 => 26, 18 => 30, // or >, Building 19 => 30, // or >, Building ); $iMaxRank = isset($aZoomRank[$_GET['zoom']])?$aZoomRank[$_GET['zoom']]:28; // Find the nearest point $fSearchDiam = 0.0001; $iPlaceID = null; $aArea = false; $fMaxAreaDistance = 1; while(!$iPlaceID && $fSearchDiam < $fMaxAreaDistance) { $fSearchDiam = $fSearchDiam * 2; // If we have to expand the search area by a large amount then we need a larger feature // then there is a limit to how small the feature should be if ($fSearchDiam > 2 && $iMaxRank > 4) $iMaxRank = 4; if ($fSearchDiam > 1 && $iMaxRank > 9) $iMaxRank = 8; if ($fSearchDiam > 0.8 && $iMaxRank > 10) $iMaxRank = 10; if ($fSearchDiam > 0.6 && $iMaxRank > 12) $iMaxRank = 12; if ($fSearchDiam > 0.2 && $iMaxRank > 17) $iMaxRank = 17; if ($fSearchDiam > 0.1 && $iMaxRank > 18) $iMaxRank = 18; if ($fSearchDiam > 0.008 && $iMaxRank > 22) $iMaxRank = 22; if ($fSearchDiam > 0.001 && $iMaxRank > 26) $iMaxRank = 26; $sSQL = 'select place_id,parent_place_id,rank_search from placex'; $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')'; $sSQL .= ' and rank_search != 28 and rank_search >= '.$iMaxRank; $sSQL .= ' and (name is not null or housenumber is not null)'; $sSQL .= ' and class not in (\'waterway\')'; $sSQL .= ' and (ST_GeometryType(geometry) not in (\'ST_Polygon\',\'ST_MultiPolygon\') '; $sSQL .= ' OR ST_DWithin('.$sPointSQL.', ST_Centroid(geometry), '.$fSearchDiam.'))'; $sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', geometry) ASC limit 1'; //var_dump($sSQL); $aPlace = $oDB->getRow($sSQL); $iPlaceID = $aPlace['place_id']; $iParentPlaceID = $aPlace['parent_place_id']; if (PEAR::IsError($iPlaceID)) { failInternalError("Could not determine closest place.", $sSQL, $iPlaceID); } } // The point we found might be too small - use the address to find what it is a child of if ($iPlaceID && $iMaxRank < 28) { if ($aPlace['rank_search'] > 28 && $iParentPlaceID) { $iPlaceID = $iParentPlaceID; } $sSQL = "select address_place_id from place_addressline where place_id = $iPlaceID order by abs(cached_rank_address - $iMaxRank) asc,cached_rank_address desc,isaddress desc,distance desc limit 1"; $iPlaceID = $oDB->getOne($sSQL); if (PEAR::IsError($iPlaceID)) { failInternalError("Could not get parent for place.", $sSQL, $iPlaceID); } if (!$iPlaceID) { $iPlaceID = $aPlace['place_id']; } } } if ($iPlaceID) { $sSQL = "select placex.*,"; $sSQL .= " get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,"; $sSQL .= " get_name_by_language(name, $sLanguagePrefArraySQL) as placename,"; $sSQL .= " get_name_by_language(name, ARRAY['ref']) as ref,"; $sSQL .= " st_y(st_centroid(geometry)) as lat, st_x(st_centroid(geometry)) as lon"; $sSQL .= " from placex where place_id = $iPlaceID "; //var_dump($sSQL); $aPlace = $oDB->getRow($sSQL); if ($bShowAddressDetails) { $aAddress = getAddressDetails($oDB, $sLanguagePrefArraySQL, $iPlaceID, $aPlace['country_code']); } $aClassType = getClassTypes(); $sAddressType = ''; if (isset($aClassType[$aPlace['class'].':'.$aPlace['type'].':'.$aPlace['admin_level']])) $sAddressType = $aClassType[$aPlace['class'].':'.$aPlace['type'].':'.$aPlace['admin_level']]['simplelabel']; elseif (isset($aClassType[$aPlace['class'].':'.$aPlace['type']])) $sAddressType = $aClassType[$aPlace['class'].':'.$aPlace['type']]['simplelabel']; else $sAddressType = $aPlace['class']; $aPlace['addresstype'] = $sAddressType; } include(CONST_BasePath.'/lib/template/address-'.$sOutputFormat.'.php');