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Merge remote-tracking branch 'upstream/master'
[nominatim.git] / lib / lib.php
diff --git a/lib/lib.php b/lib/lib.php
index d36e64720e0ef485d82ad42c22ca508d7ed1493a..f0f7ecebfae64ca3187c8bbc920a4084a770841a 100644 (file)
--- a/lib/lib.php
+++ b/lib/lib.php
@@ -1,9 +1,47 @@
 <?php
 
 <?php
 
+       function failInternalError($sError, $sSQL = false, $vDumpVar = false) 
+       {
+               header('HTTP/1.0 500 Internal Server Error');
+               header('Content-type: text/html; charset=utf-8');
+               echo "<html><body><h1>Internal Server Error</h1>";
+               echo '<p>Nominatim has encountered an internal error while processing your request. This is most likely because of a bug in the software.</p>';
+               echo "<p><b>Details:</b> ".$sError,"</p>";
+               echo '<p>Feel free to report the bug in the <a href="http://trac.openstreetmap.org">OSM bug database</a>. Please include the error message above and the URL you used.</p>';
+               if (CONST_Debug)
+               {
+                       echo "<hr><h2>Debugging Information</h2><br>";
+                       if ($sSQL) {
+                               echo "<h3>SQL query</h3><code>".$sSQL."</code>";
+                       }
+                       if ($vDumpVar) {
+                               echo "<h3>Result</h3> <code>";
+                               var_dump($vDumpVar);
+                               echo "</code>";
+                       }
+               }
+               echo "\n</body></html>\n";
+               exit;
+
+       }
+
+       function userError($sError) 
+       {
+               header('HTTP/1.0 400 Bad Request');
+               header('Content-type: text/html; charset=utf-8');
+               echo "<html><body><h1>Bad Request</h1>";
+               echo '<p>Nominatim has encountered an error with your request.</p>';
+               echo "<p><b>Details:</b> ".$sError,"</p>";
+               echo '<p>If you feel this error is incorrect feel free to report the bug in the <a href="http://trac.openstreetmap.org">OSM bug database</a>. Please include the error message above and the URL you used.</p>';
+               echo "\n</body></html>\n";
+               exit;
+
+       }
+
        function fail($sError, $sUserError = false)
        {
                if (!$sUserError) $sUserError = $sError;
        function fail($sError, $sUserError = false)
        {
                if (!$sUserError) $sUserError = $sError;
-               log('ERROR:'.$sError);
+               error_log('ERROR: '.$sError);
                echo $sUserError."\n";
                exit;
        }
                echo $sUserError."\n";
                exit;
        }
@@ -22,7 +60,7 @@
        {
                $sLoadAverage = file_get_contents('/proc/loadavg');
                 $aLoadAverage = explode(' ',$sLoadAverage);
        {
                $sLoadAverage = file_get_contents('/proc/loadavg');
                 $aLoadAverage = explode(' ',$sLoadAverage);
-               return (int)$aLoadAverage[0];
+               return (float)$aLoadAverage[0];
        }
 
        function getProcessorCount()
        }
 
        function getProcessorCount()
@@ -32,6 +70,20 @@
                return sizeof($aMatches[0]);
        }
 
                return sizeof($aMatches[0]);
        }
 
+       function getTotalMemoryMB()
+       {
+               $sCPU = file_get_contents('/proc/meminfo');
+               preg_match('#MemTotal: +([0-9]+) kB#', $sCPU, $aMatches);
+               return (int)($aMatches[1]/1024);
+       }
+
+       function getCacheMemoryMB()
+       {
+               $sCPU = file_get_contents('/proc/meminfo');
+               preg_match('#Cached: +([0-9]+) kB#', $sCPU, $aMatches);
+               return (int)($aMatches[1]/1024);
+       }
+
        function bySearchRank($a, $b)
        {
                if ($a['iSearchRank'] == $b['iSearchRank']) return 0;
        function bySearchRank($a, $b)
        {
                if ($a['iSearchRank'] == $b['iSearchRank']) return 0;
@@ -40,9 +92,9 @@
 
        function byImportance($a, $b)
        {
 
        function byImportance($a, $b)
        {
-/*
                if ($a['importance'] != $b['importance'])
                        return ($a['importance'] > $b['importance']?-1:1);
                if ($a['importance'] != $b['importance'])
                        return ($a['importance'] > $b['importance']?-1:1);
+/*
                if ($a['aPointPolygon']['numfeatures'] != $b['aPointPolygon']['numfeatures'])
                        return ($a['aPointPolygon']['numfeatures'] > $b['aPointPolygon']['numfeatures']?-1:1);
                if ($a['aPointPolygon']['area'] != $b['aPointPolygon']['area'])
                if ($a['aPointPolygon']['numfeatures'] != $b['aPointPolygon']['numfeatures'])
                        return ($a['aPointPolygon']['numfeatures'] > $b['aPointPolygon']['numfeatures']?-1:1);
                if ($a['aPointPolygon']['area'] != $b['aPointPolygon']['area'])
@@ -55,7 +107,7 @@
                return ($a['foundorder'] < $b['foundorder']?-1:1);
        }
 
                return ($a['foundorder'] < $b['foundorder']?-1:1);
        }
 
-       function getPrefferedLangauges()
+       function getPreferredLanguages()
        {
                // If we have been provided the value in $_GET it overrides browser value
                if (isset($_GET['accept-language']) && $_GET['accept-language'])
        {
                // If we have been provided the value in $_GET it overrides browser value
                if (isset($_GET['accept-language']) && $_GET['accept-language'])
@@ -64,15 +116,17 @@
                }
 
                $aLanguages = array();
                }
 
                $aLanguages = array();
-               if (preg_match_all('/(([a-z]{1,8})(-[a-z]{1,8})?)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i', $_SERVER['HTTP_ACCEPT_LANGUAGE'], $aLanguagesParse, PREG_SET_ORDER))
-               {
-                       foreach($aLanguagesParse as $iLang => $aLanguage)
+               if (isset($_SERVER["HTTP_ACCEPT_LANGUAGE"])) {
+                       if (preg_match_all('/(([a-z]{1,8})(-[a-z]{1,8})?)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i', $_SERVER['HTTP_ACCEPT_LANGUAGE'], $aLanguagesParse, PREG_SET_ORDER))
                        {
                        {
-                               $aLanguages[$aLanguage[1]] = isset($aLanguage[5])?(float)$aLanguage[5]:1 - ($iLang/100);
-                               if (!isset($aLanguages[$aLanguage[2]])) $aLanguages[$aLanguage[2]] = $aLanguages[$aLanguage[1]]/10;
+                               foreach($aLanguagesParse as $iLang => $aLanguage)
+                               {
+                                       $aLanguages[$aLanguage[1]] = isset($aLanguage[5])?(float)$aLanguage[5]:1 - ($iLang/100);
+                                       if (!isset($aLanguages[$aLanguage[2]])) $aLanguages[$aLanguage[2]] = $aLanguages[$aLanguage[1]]/10;
+                               }
+                               arsort($aLanguages);
                        }
                        }
-                       arsort($aLanguages);
-               }
+        }
                if (!sizeof($aLanguages)) $aLanguages = array(CONST_Default_Language=>1);
                foreach($aLanguages as $sLangauge => $fLangauagePref)
                {
                if (!sizeof($aLanguages)) $aLanguages = array(CONST_Default_Language=>1);
                foreach($aLanguages as $sLangauge => $fLangauagePref)
                {
@@ -173,56 +227,12 @@
                        exit;
                }
                
                        exit;
                }
                
-
                if (sizeof($aNearPostcodes))
                {
                        return array(array('lat' => $aNearPostcodes[0]['lat'], 'lon' => $aNearPostcodes[0]['lon'], 'radius' => 0.005));
                }
 
                if (sizeof($aNearPostcodes))
                {
                        return array(array('lat' => $aNearPostcodes[0]['lat'], 'lon' => $aNearPostcodes[0]['lon'], 'radius' => 0.005));
                }
 
-               $sSQL = 'select substring(upper(postcode) from \'^[A-Z][A-Z]?[0-9][0-9A-Z]? [0-9]([A-Z][A-Z])$\'),ST_X(ST_Centroid(geometry)) as lon,ST_Y(ST_Centroid(geometry)) as lat from placex where country_code::text = \'gb\'::text AND substring(postcode from \'^([A-Z][A-Z]?[0-9][0-9A-Z]? [0-9])[A-Z][A-Z]$\') = \''.$sPostcodeSector.'\' and class=\'place\' and type=\'postcode\' ';
-               $sSQL .= ' union ';
-               $sSQL .= 'select substring(upper(postcode) from \'^[A-Z][A-Z]?[0-9][0-9A-Z]? [0-9]([A-Z][A-Z])$\'),ST_X(ST_Centroid(geometry)) as lon,ST_Y(ST_Centroid(geometry)) as lat from gb_postcode where substring(postcode from \'^([A-Z][A-Z]?[0-9][0-9A-Z]? [0-9])[A-Z][A-Z]$\') = \''.$sPostcodeSector.'\'';
-               $aNearPostcodes = $oDB->getAll($sSQL);
-               if (PEAR::IsError($aNearPostcodes))
-               {
-                       var_dump($sSQL, $aNearPostcodes);
-                       exit;
-               }
-
-               if (!sizeof($aNearPostcodes))
-               {
-                       return false;
-               }
-
-               $fTotalLat = 0;
-               $fTotalLon = 0;
-               $fTotalFac = 0;
-               foreach($aNearPostcodes as $aPostcode)
-               {
-                       $iDiff = gbPostcodeAlphaDifference($sPostcodeEnd, $aPostcode['substring'])*2 + 1;
-                       if ($iDiff == 0)
-                               $fFac = 1;
-                       else
-                               $fFac = 1/($iDiff*$iDiff);
-                       
-                       $fTotalFac += $fFac;
-                       $fTotalLat += $aPostcode['lat'] * $fFac;
-                       $fTotalLon += $aPostcode['lon'] * $fFac;
-               }
-               if ($fTotalFac)
-               {
-                       $fLat = $fTotalLat / $fTotalFac;
-                       $fLon = $fTotalLon / $fTotalFac;
-                       $fRadius = min(0.1 / $fTotalFac, 0.02);
-                       return array(array('lat' => $fLat, 'lon' => $fLon, 'radius' => $fRadius));
-               }
                return false;
                return false;
-
-               /*
-                       $fTotalFac is a suprisingly good indicator of accuracy
-                       $iZoom = 18 + round(log($fTotalFac,32));
-                       $iZoom = max(13,min(18,$iZoom));
-               */
        }
 
        function usPostcodeCalculate($sPostcode, &$oDB)
        }
 
        function usPostcodeCalculate($sPostcode, &$oDB)
@@ -278,7 +288,7 @@
                return false;
 
                /*
                return false;
 
                /*
-                       $fTotalFac is a suprisingly good indicator of accuracy
+                       $fTotalFac is a surprisingly good indicator of accuracy
                        $iZoom = 18 + round(log($fTotalFac,32));
                        $iZoom = max(13,min(18,$iZoom));
                */
                        $iZoom = 18 + round(log($fTotalFac,32));
                        $iZoom = max(13,min(18,$iZoom));
                */
@@ -287,19 +297,22 @@
        function getClassTypes()
        {
                return array(
        function getClassTypes()
        {
                return array(
+ 'boundary:administrative:1' => array('label'=>'Continent','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'boundary:administrative:2' => array('label'=>'Country','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'place:country' => array('label'=>'Country','frequency'=>0,'icon'=>'poi_boundary_administrative','defzoom'=>6, 'defdiameter' => 15,),
  'boundary:administrative:2' => array('label'=>'Country','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'place:country' => array('label'=>'Country','frequency'=>0,'icon'=>'poi_boundary_administrative','defzoom'=>6, 'defdiameter' => 15,),
+ 'boundary:administrative:3' => array('label'=>'State','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'boundary:administrative:4' => array('label'=>'State','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'place:state' => array('label'=>'State','frequency'=>0,'icon'=>'poi_boundary_administrative','defzoom'=>8, 'defdiameter' => 5.12,),
  'boundary:administrative:5' => array('label'=>'State District','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'boundary:administrative:6' => array('label'=>'County','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'boundary:administrative:4' => array('label'=>'State','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'place:state' => array('label'=>'State','frequency'=>0,'icon'=>'poi_boundary_administrative','defzoom'=>8, 'defdiameter' => 5.12,),
  'boundary:administrative:5' => array('label'=>'State District','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'boundary:administrative:6' => array('label'=>'County','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
+ 'boundary:administrative:7' => array('label'=>'County','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'place:county' => array('label'=>'County','frequency'=>108,'icon'=>'poi_boundary_administrative','defzoom'=>10, 'defdiameter' => 1.28,),
  'boundary:administrative:8' => array('label'=>'City','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'place:city' => array('label'=>'City','frequency'=>66,'icon'=>'poi_place_city','defzoom'=>12, 'defdiameter' => 0.32,),
  'boundary:administrative:9' => array('label'=>'City District','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'boundary:administrative:10' => array('label'=>'Suburb','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'boundary:administrative:11' => array('label'=>'Neighbourhood','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'place:county' => array('label'=>'County','frequency'=>108,'icon'=>'poi_boundary_administrative','defzoom'=>10, 'defdiameter' => 1.28,),
  'boundary:administrative:8' => array('label'=>'City','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'place:city' => array('label'=>'City','frequency'=>66,'icon'=>'poi_place_city','defzoom'=>12, 'defdiameter' => 0.32,),
  'boundary:administrative:9' => array('label'=>'City District','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'boundary:administrative:10' => array('label'=>'Suburb','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'boundary:administrative:11' => array('label'=>'Neighbourhood','frequency'=>0,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
- 'place:region' => array('label'=>'State','frequency'=>0,'icon'=>'poi_boundary_administrative','defzoom'=>8, 'defdiameter' => 5.12,),
+ 'place:region' => array('label'=>'Region','frequency'=>0,'icon'=>'poi_boundary_administrative','defzoom'=>8, 'defdiameter' => 0.04,),
  'place:island' => array('label'=>'Island','frequency'=>288,'icon'=>'','defzoom'=>11, 'defdiameter' => 0.64,),
  'boundary:administrative' => array('label'=>'Administrative','frequency'=>413,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'place:town' => array('label'=>'Town','frequency'=>1497,'icon'=>'poi_place_town','defzoom'=>14, 'defdiameter' => 0.08,),
  'place:island' => array('label'=>'Island','frequency'=>288,'icon'=>'','defzoom'=>11, 'defdiameter' => 0.64,),
  'boundary:administrative' => array('label'=>'Administrative','frequency'=>413,'icon'=>'poi_boundary_administrative', 'defdiameter' => 0.32,),
  'place:town' => array('label'=>'Town','frequency'=>1497,'icon'=>'poi_place_town','defzoom'=>14, 'defdiameter' => 0.08,),
@@ -339,7 +352,7 @@
 
  'place:airport' => array('label'=>'Airport','frequency'=>36,'icon'=>'transport_airport2', 'defdiameter' => 0.03,),
  'railway:station' => array('label'=>'Station','frequency'=>3431,'icon'=>'transport_train_station2', 'defdiameter' => 0.01,),
 
  'place:airport' => array('label'=>'Airport','frequency'=>36,'icon'=>'transport_airport2', 'defdiameter' => 0.03,),
  'railway:station' => array('label'=>'Station','frequency'=>3431,'icon'=>'transport_train_station2', 'defdiameter' => 0.01,),
- 'amenity:place_of_worship' => array('label'=>'Place Of Worship','frequency'=>9049,'icon'=>'place_of_worship3',),
+ 'amenity:place_of_worship' => array('label'=>'Place Of Worship','frequency'=>9049,'icon'=>'place_of_worship_unknown3',),
  'amenity:pub' => array('label'=>'Pub','frequency'=>18969,'icon'=>'food_pub',),
  'amenity:bar' => array('label'=>'Bar','frequency'=>164,'icon'=>'food_bar',),
  'amenity:university' => array('label'=>'University','frequency'=>607,'icon'=>'education_university',),
  'amenity:pub' => array('label'=>'Pub','frequency'=>18969,'icon'=>'food_pub',),
  'amenity:bar' => array('label'=>'Bar','frequency'=>164,'icon'=>'food_bar',),
  'amenity:university' => array('label'=>'University','frequency'=>607,'icon'=>'education_university',),
@@ -369,7 +382,7 @@
  'tourism:motel' => array('label'=>'Motel','frequency'=>43,'icon'=>'',),
  'amenity:cinema' => array('label'=>'Cinema','frequency'=>277,'icon'=>'tourist_cinema',),
  'tourism:information' => array('label'=>'Information','frequency'=>224,'icon'=>'amenity_information',),
  'tourism:motel' => array('label'=>'Motel','frequency'=>43,'icon'=>'',),
  'amenity:cinema' => array('label'=>'Cinema','frequency'=>277,'icon'=>'tourist_cinema',),
  'tourism:information' => array('label'=>'Information','frequency'=>224,'icon'=>'amenity_information',),
- 'tourism:artwork' => array('label'=>'Artwork','frequency'=>171,'icon'=>'art_gallery2',),
+ 'tourism:artwork' => array('label'=>'Artwork','frequency'=>171,'icon'=>'tourist_art_gallery2',),
  'historic:archaeological_site' => array('label'=>'Archaeological Site','frequency'=>407,'icon'=>'tourist_archaeological2',),
  'amenity:doctors' => array('label'=>'Doctors','frequency'=>581,'icon'=>'health_doctors',),
  'leisure:sports_centre' => array('label'=>'Sports Centre','frequency'=>767,'icon'=>'sport_leisure_centre',),
  'historic:archaeological_site' => array('label'=>'Archaeological Site','frequency'=>407,'icon'=>'tourist_archaeological2',),
  'amenity:doctors' => array('label'=>'Doctors','frequency'=>581,'icon'=>'health_doctors',),
  'leisure:sports_centre' => array('label'=>'Sports Centre','frequency'=>767,'icon'=>'sport_leisure_centre',),
@@ -452,7 +465,7 @@
 
  'leisure:pitch' => array('label'=>'Pitch','frequency'=>762,'icon'=>'',),
  'highway:unsurfaced' => array('label'=>'Unsurfaced','frequency'=>492,'icon'=>'',),
 
  'leisure:pitch' => array('label'=>'Pitch','frequency'=>762,'icon'=>'',),
  'highway:unsurfaced' => array('label'=>'Unsurfaced','frequency'=>492,'icon'=>'',),
- 'historic:ruins' => array('label'=>'Ruins','frequency'=>483,'icon'=>'shopping_jewelry',),
+ 'historic:ruins' => array('label'=>'Ruins','frequency'=>483,'icon'=>'tourist_ruin',),
  'amenity:college' => array('label'=>'College','frequency'=>473,'icon'=>'education_school',),
  'historic:monument' => array('label'=>'Monument','frequency'=>470,'icon'=>'tourist_monument',),
  'railway:subway' => array('label'=>'Subway','frequency'=>385,'icon'=>'',),
  'amenity:college' => array('label'=>'College','frequency'=>473,'icon'=>'education_school',),
  'historic:monument' => array('label'=>'Monument','frequency'=>470,'icon'=>'tourist_monument',),
  'railway:subway' => array('label'=>'Subway','frequency'=>385,'icon'=>'',),
@@ -568,6 +581,7 @@
  'amenity:shopping' => array('label'=>'Shopping','frequency'=>21,'icon'=>'',),
  'natural:scrub' => array('label'=>'Scrub','frequency'=>20,'icon'=>'',),
  'natural:fen' => array('label'=>'Fen','frequency'=>20,'icon'=>'',),
  'amenity:shopping' => array('label'=>'Shopping','frequency'=>21,'icon'=>'',),
  'natural:scrub' => array('label'=>'Scrub','frequency'=>20,'icon'=>'',),
  'natural:fen' => array('label'=>'Fen','frequency'=>20,'icon'=>'',),
+ 'building:yes' => array('label'=>'Building','frequency'=>200,'icon'=>'',),
 
  'amenity:parking' => array('label'=>'Parking','frequency'=>3157,'icon'=>'',),
  'highway:bus_stop' => array('label'=>'Bus Stop','frequency'=>35777,'icon'=>'transport_bus_stop2',),
 
  'amenity:parking' => array('label'=>'Parking','frequency'=>3157,'icon'=>'',),
  'highway:bus_stop' => array('label'=>'Bus Stop','frequency'=>35777,'icon'=>'transport_bus_stop2',),
@@ -581,9 +595,9 @@
  'railway:disused_station' => array('label'=>'Disused Station','frequency'=>114,'icon'=>'',),
  'railway:abandoned' => array('label'=>'Abandoned','frequency'=>641,'icon'=>'',),
  'railway:disused' => array('label'=>'Disused','frequency'=>72,'icon'=>'',),
  'railway:disused_station' => array('label'=>'Disused Station','frequency'=>114,'icon'=>'',),
  'railway:abandoned' => array('label'=>'Abandoned','frequency'=>641,'icon'=>'',),
  'railway:disused' => array('label'=>'Disused','frequency'=>72,'icon'=>'',),
-                       );              
+                       );
        }
        }
-       
+
        function getClassTypesWithImportance()
        {
                $aOrders = getClassTypes();
        function getClassTypesWithImportance()
        {
                $aOrders = getClassTypes();
@@ -594,47 +608,25 @@
                }
                return $aOrders;
        }
                }
                return $aOrders;
        }
-       
-       
-        function javascript_isarray($xVal)
-        {
-                if (!is_array($xVal)) return false;
-                for($i = 0; $i < sizeof($xVal); $i++)
-                {
-                        if (!array_key_exists($i, $xVal)) return false;
-                }
-                return true;
-        }
 
 
-        function javascript_renderData($xVal, $bForceHash = false)
-        {
-                if (is_array($xVal))
-                {
-                        $aVals = array();
-                        if (javascript_isarray($xVal) && !$bForceHash)
-                        {
-                                foreach($xVal as $sKey => $xData)
-                                {
-                                        $aVals[] = javascript_renderData($xData);
-                                }
-                                return '['.join(',',$aVals).']';
-                        }
-                        else
-                        {
-                                foreach($xVal as $sKey => $xData)
-                                {
-                                        $aVals[] = '"'.addslashes($sKey).'"'.':'.javascript_renderData($xData);
-                                }
-                                return '{'.join(',',$aVals).'}';
-                        }
-                }
-                else
-                {
-                        if (is_bool($xVal)) return $xVal?'true':'false';
-//                     if (is_numeric($xVal)) return $xVal;
-                        return '"'.str_replace('>','\\>',str_replace(array("\n","\r"),'\\n',str_replace(array("\n\r","\r\n"),'\\n',str_replace('"','\\"',$xVal)))).'"';
-                }
-        }
+    function javascript_renderData($xVal)
+    {
+        header("Access-Control-Allow-Origin: *");
+
+        $jsonout = json_encode($xVal);
+
+               if( ! isset($_GET['json_callback'])) {
+                       header("Content-Type: application/json; charset=UTF-8");
+                       echo $jsonout;
+               } else {
+                       if (preg_match('/^[$_\p{L}][$_\p{L}\p{Nd}.[\]]*$/u',$_GET['json_callback'])) {
+                               header("Content-Type: application/javascript; charset=UTF-8");
+                               echo $_GET['json_callback'].'('.$jsonout.')';
+                       } else {
+                               header('HTTP/1.0 400 Bad Request');
+                       }
+               }
+    }
 
        function _debugDumpGroupedSearches($aData, $aTokens)
        {
 
        function _debugDumpGroupedSearches($aData, $aTokens)
        {
@@ -703,6 +695,7 @@
                $sSQL = "select *,get_name_by_language(name,$sLanguagePrefArraySQL) as localname from get_addressdata($iPlaceID)";
                IF (!$bRaw) $sSQL .= " WHERE isaddress OR type = 'country_code'";
                $sSQL .= " order by rank_address desc,isaddress desc";
                $sSQL = "select *,get_name_by_language(name,$sLanguagePrefArraySQL) as localname from get_addressdata($iPlaceID)";
                IF (!$bRaw) $sSQL .= " WHERE isaddress OR type = 'country_code'";
                $sSQL .= " order by rank_address desc,isaddress desc";
+
                $aAddressLines = $oDB->getAll($sSQL);
                if (PEAR::IsError($aAddressLines))
                {
                $aAddressLines = $oDB->getAll($sSQL);
                if (PEAR::IsError($aAddressLines))
                {
@@ -719,16 +712,16 @@
                        $aTypeLabel = false;
                        if (isset($aClassType[$aLine['class'].':'.$aLine['type'].':'.$aLine['admin_level']])) $aTypeLabel = $aClassType[$aLine['class'].':'.$aLine['type'].':'.$aLine['admin_level']];
                        elseif (isset($aClassType[$aLine['class'].':'.$aLine['type']])) $aTypeLabel = $aClassType[$aLine['class'].':'.$aLine['type']];
                        $aTypeLabel = false;
                        if (isset($aClassType[$aLine['class'].':'.$aLine['type'].':'.$aLine['admin_level']])) $aTypeLabel = $aClassType[$aLine['class'].':'.$aLine['type'].':'.$aLine['admin_level']];
                        elseif (isset($aClassType[$aLine['class'].':'.$aLine['type']])) $aTypeLabel = $aClassType[$aLine['class'].':'.$aLine['type']];
+                       elseif (isset($aClassType['boundary:administrative:'.((int)($aLine['rank_address']/2))])) $aTypeLabel = $aClassType['boundary:administrative:'.((int)($aLine['rank_address']/2))];
                        else $aTypeLabel = array('simplelabel'=>$aLine['class']);
                        else $aTypeLabel = array('simplelabel'=>$aLine['class']);
-                       if ($aTypeLabel && ($aLine['localname'] || $aLine['housenumber']))
+                       if ($aTypeLabel && ((isset($aLine['localname']) && $aLine['localname']) || (isset($aLine['housenumber']) && $aLine['housenumber'])))
                        {
                                $sTypeLabel = strtolower(isset($aTypeLabel['simplelabel'])?$aTypeLabel['simplelabel']:$aTypeLabel['label']);
                                $sTypeLabel = str_replace(' ','_',$sTypeLabel);
                                if (!isset($aAddress[$sTypeLabel]) && $aLine['localname']) $aAddress[$sTypeLabel] = $aLine['localname']?$aLine['localname']:$aLine['housenumber'];
                        }
                }
                        {
                                $sTypeLabel = strtolower(isset($aTypeLabel['simplelabel'])?$aTypeLabel['simplelabel']:$aTypeLabel['label']);
                                $sTypeLabel = str_replace(' ','_',$sTypeLabel);
                                if (!isset($aAddress[$sTypeLabel]) && $aLine['localname']) $aAddress[$sTypeLabel] = $aLine['localname']?$aLine['localname']:$aLine['housenumber'];
                        }
                }
-//var_dump($aAddress);
-//exit;
+
                return $aAddress;
 
                $aHouseNumber = $oDB->getRow('select housenumber, get_name_by_language(name,ARRAY[\'addr:housename\']) as housename,rank_search,postcode from placex where place_id = '.$iPlaceID);
                return $aAddress;
 
                $aHouseNumber = $oDB->getRow('select housenumber, get_name_by_language(name,ARRAY[\'addr:housename\']) as housename,rank_search,postcode from placex where place_id = '.$iPlaceID);
@@ -815,3 +808,115 @@
                $aSimilar = $oDB->getAll($sSQL);
                return $aSimilar;
        }
                $aSimilar = $oDB->getAll($sSQL);
                return $aSimilar;
        }
+
+       function geocodeReverse($fLat, $fLon, $iZoom=18)
+       {
+               $oDB =& getDB();
+
+               $sPointSQL = "ST_SetSRID(ST_Point($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[$iZoom])?$aZoomRank[$iZoom]: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 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 = $aPlace['place_id'];
+                       if (PEAR::IsError($iPlaceID))
+                       {
+                               var_Dump($sSQL, $iPlaceID); 
+                               exit;
+                       }
+               }
+
+               // The point we found might be too small - use the address to find what it is a child of
+               if ($iPlaceID)
+               {
+                       $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 limit 1";
+                       $iPlaceID = $oDB->getOne($sSQL);
+                       if (PEAR::IsError($iPlaceID))
+                       {
+                               var_Dump($sSQL, $iPlaceID); 
+                               exit;
+                       }
+
+                       if ($iPlaceID && $aPlace['place_id'] && $iMaxRank < 28)
+                       {
+                               $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";
+                               $iPlaceID = $oDB->getOne($sSQL);
+                               if (PEAR::IsError($iPlaceID))
+                               {
+                                       var_Dump($sSQL, $iPlaceID); 
+                                       exit;
+                               }
+                       }
+                       if (!$iPlaceID)
+                       {
+                               $iPlaceID = $aPlace['place_id'];
+                       }
+               }
+
+               return $iPlaceID;
+       }
+
+        function loadStructuredAddressElement(&$aStructuredQuery, &$iMinAddressRank, &$iMaxAddressRank, $aParams, $sKey, $iNewMinAddressRank, $iNewMaxAddressRank)
+        {
+                if (!isset($_GET[$sKey])) return false;
+                $sValue = trim($_GET[$sKey]);
+                if (!$sValue) return false;
+                $aStructuredQuery[$sKey] = $sValue;
+                if ($iMinAddressRank == 0 && $iMaxAddressRank == 30) {
+                        $iMinAddressRank = $iNewMinAddressRank;
+                        $iMaxAddressRank = $iNewMaxAddressRank;
+                }
+                return true;
+        }
Open Source search based on OpenStreetMap data