<?php
@define('CONST_ConnectionBucket_PageType', 'Reverse');
require_once(dirname(dirname(__FILE__)).'/lib/init-website.php');
require_once(CONST_BasePath.'/lib/log.php');
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'];
// Preferred language
$aLangPrefOrder = getPreferredLanguages();
$sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$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 = $oDB->getOne($sSQL = ("select place_id from placex where osm_type = '".$_GET['osm_type']."' and osm_id = ".(int)$_GET['osm_id']." order by type = 'postcode' asc"));
if (CONST_Debug) var_dump($sSQL);
if (!$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
);
$iMaxRank = (isset($_GET['zoom']) && isset($aZoomRank[$_GET['zoom']]))?$aZoomRank[$_GET['zoom']]:28;
// Find the nearest point
$fSearchDiam = 0.0004;
$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\',\'railway\',\'tunnel\',\'bridge\')';
$sSQL .= ' and (ST_GeometryType(geometry) not in (\'ST_Polygon\',\'ST_MultiPolygon\') ';
$sSQL .= ' OR ST_DWithin('.$sPointSQL.', centroid, '.$fSearchDiam.'))';
$sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', geometry) ASC limit 1';
if (CONST_Debug) var_dump($sSQL);
$aPlace = $oDB->getRow($sSQL);
if (PEAR::IsError($aPlace))
{
failInternalError("Could not determine closest place.", $sSQL, $iPlaceID);
}
$iPlaceID = $aPlace['place_id'];
$iParentPlaceID = $aPlace['parent_place_id'];
}
// The point we found might be too small - use the address to find what it is a child of
if ($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(centroid) as lat, st_x(centroid) as lon";
$sSQL .= " from placex where place_id = $iPlaceID ";
$aPlace = $oDB->getRow($sSQL);
//var_dump($sSQL, $aPlace); exit;
if ($bShowAddressDetails)
{
$aAddress = getAddressDetails($oDB, $sLanguagePrefArraySQL, $iPlaceID, $aPlace['calculated_country_code']);
}
$aClassType = getClassTypes();
$sAddressType = '';
$sClassType = $aPlace['class'].':'.$aPlace['type'].':'.$aPlace['admin_level'];
if (isset($aClassType[$sClassType]) && isset($aClassType[$sClassType]['simplelabel']))
{
$sAddressType = $aClassType[$aClassType]['simplelabel'];
}
else
{
$sClassType = $aPlace['class'].':'.$aPlace['type'];
if (isset($aClassType[$sClassType]) && isset($aClassType[$sClassType]['simplelabel']))
$sAddressType = $aClassType[$sClassType]['simplelabel'];
else $sAddressType = $aPlace['class'];
}
$aPlace['addresstype'] = $sAddressType;
}
if (CONST_Debug) exit;
include(CONST_BasePath.'/lib/template/address-'.$sOutputFormat.'.php');