sanitize special search term before normalizing

[nominatim.git] / lib / NearPoint.php

diff --git a/lib/NearPoint.php b/lib/NearPoint.php
index 16b6dff5276be2ff79f07486fc69cfd9152dd8e2..30845b76e12fa19801198b0c5e2a358ce615b012 100644 (file)
--- a/lib/NearPoint.php
+++ b/lib/NearPoint.php
@@ -13,6 +13,7 @@ class NearPoint
 
     private $sSQL;
 
+
     public function __construct($lat, $lon, $radius = 0.1)
     {
         $this->fLat = (float)$lat;
@@ -21,11 +22,20 @@ class NearPoint
         $this->sSQL = 'ST_SetSRID(ST_Point('.$this->fLon.','.$this->fLat.'),4326)';
     }
 
-    public function lat() { return $this->fLat; }
+    public function lat()
+    {
+        return $this->fLat;
+    }
 
-    public function lon() { return $this->fLon; }
+    public function lon()
+    {
+        return $this->fLon;
+    }
 
-    public function radius() { return $this->fRadius; }
+    public function radius()
+    {
+        return $this->fRadius;
+    }
 
     public function distanceSQL($sObj)
     {
@@ -39,6 +49,8 @@ class NearPoint
 
     /**
      * Check that the coordinates are valid WSG84 coordinates.
+     *
+     * @return bool True if the coordinates are correctly bounded.
      */
     public function isValid()
     {
@@ -53,6 +65,12 @@ class NearPoint
      *
      * If a coordinate is found an array of a new NearPoint and the
      * remaining query is returned or false otherwise.
+     *
+     * @param string $sQuery Query to scan.
+     *
+     * @return array|false If a coordinate was found, an array with
+     *                     `pt` as the NearPoint coordinates and `query`
+     *                      with the remaining query string. False otherwiese.
      */
     public static function extractFromQuery($sQuery)
     {
@@ -63,8 +81,8 @@ class NearPoint
         $fQueryLat = null;
         $fQueryLon = null;
 
-        if (preg_match('/\\b([NS])[ ]+([0-9]+[0-9.]*)[° ]+([0-9.]+)?[′\']*[, ]+([EW])[ ]+([0-9]+)[° ]+([0-9]+[0-9.]*)[′\']*?\\b/', $sQuery, $aData)) {
-            /*              1         2                   3                  4         5            6
+        if (preg_match('/\\s*([NS])[ ]+([0-9]+[0-9.]*)[° ]+([0-9.]+)?[′\']*[, ]+([EW])[ ]+([0-9]+)[° ]+([0-9]+[0-9.]*)[′\']*\\s*/', $sQuery, $aData)) {
+            /*               1         2                   3                    4         5            6
              * degrees decimal minutes
              * N 40 26.767, W 79 58.933
              * N 40°26.767′, W 79°58.933′
@@ -72,8 +90,8 @@ class NearPoint
             $sFound    = $aData[0];
             $fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2] + $aData[3]/60);
             $fQueryLon = ($aData[4]=='E'?1:-1) * ($aData[5] + $aData[6]/60);
-        } elseif (preg_match('/\\b([0-9]+)[° ]+([0-9]+[0-9.]*)?[′\']*[ ]+([NS])[, ]+([0-9]+)[° ]+([0-9]+[0-9.]*)?[′\' ]+([EW])\\b/', $sQuery, $aData)) {
-            /*                    1             2                      3          4            5                    6
+        } elseif (preg_match('/\\s*([0-9]+)[° ]+([0-9]+[0-9.]*)?[′\']*[ ]+([NS])[, ]+([0-9]+)[° ]+([0-9]+[0-9.]*)?[′\' ]+([EW])\\s*/', $sQuery, $aData)) {
+            /*                     1            2                         3          4            5                      6
              * degrees decimal minutes
              * 40 26.767 N, 79 58.933 W
              * 40° 26.767′ N 79° 58.933′ W
@@ -81,8 +99,8 @@ class NearPoint
             $sFound    = $aData[0];
             $fQueryLat = ($aData[3]=='N'?1:-1) * ($aData[1] + $aData[2]/60);
             $fQueryLon = ($aData[6]=='E'?1:-1) * ($aData[4] + $aData[5]/60);
-        } elseif (preg_match('/\\b([NS])[ ]([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″"]*[, ]+([EW])[ ]([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″"]*\\b/', $sQuery, $aData)) {
-            /*                    1        2            3            4                5        6            7            8
+        } elseif (preg_match('/\\s*([NS])[ ]([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″"]*[, ]+([EW])[ ]([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″"]*\\s*/', $sQuery, $aData)) {
+            /*                     1        2            3              4                 5        6            7              8
              * degrees decimal seconds
              * N 40 26 46 W 79 58 56
              * N 40° 26′ 46″, W 79° 58′ 56″
@@ -90,8 +108,8 @@ class NearPoint
             $sFound    = $aData[0];
             $fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2] + $aData[3]/60 + $aData[4]/3600);
             $fQueryLon = ($aData[5]=='E'?1:-1) * ($aData[6] + $aData[7]/60 + $aData[8]/3600);
-        } elseif (preg_match('/\\b([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″" ]+([NS])[, ]+([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″" ]+([EW])\\b/', $sQuery, $aData)) {
-            /*                    1            2            3            4          5            6            7            8
+        } elseif (preg_match('/\\s*([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″" ]+([NS])[, ]+([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″" ]+([EW])\\s*/', $sQuery, $aData)) {
+            /*                     1            2              3             4          5            6              7             8
              * degrees decimal seconds
              * 40 26 46 N 79 58 56 W
              * 40° 26′ 46″ N, 79° 58′ 56″ W
@@ -99,42 +117,42 @@ class NearPoint
             $sFound    = $aData[0];
             $fQueryLat = ($aData[4]=='N'?1:-1) * ($aData[1] + $aData[2]/60 + $aData[3]/3600);
             $fQueryLon = ($aData[8]=='E'?1:-1) * ($aData[5] + $aData[6]/60 + $aData[7]/3600);
-        } elseif (preg_match('/\\b([NS])[ ]([0-9]+[0-9]*\\.[0-9]+)[°]*[, ]+([EW])[ ]([0-9]+[0-9]*\\.[0-9]+)[°]*\\b/', $sQuery, $aData)) {
-            /*                    1        2                               3        4
+        } elseif (preg_match('/\\s*([NS])[ ]([0-9]+[0-9]*\\.[0-9]+)[°]*[, ]+([EW])[ ]([0-9]+[0-9]*\\.[0-9]+)[°]*\\s*/', $sQuery, $aData)) {
+            /*                     1        2                               3        4
              * degrees decimal
              * N 40.446° W 79.982°
              */
             $sFound    = $aData[0];
             $fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2]);
             $fQueryLon = ($aData[3]=='E'?1:-1) * ($aData[4]);
-        } elseif (preg_match('/\\b([0-9]+[0-9]*\\.[0-9]+)[° ]+([NS])[, ]+([0-9]+[0-9]*\\.[0-9]+)[° ]+([EW])\\b/', $sQuery, $aData)) {
-            /*                    1                           2          3                           4
+        } elseif (preg_match('/\\s*([0-9]+[0-9]*\\.[0-9]+)[° ]+([NS])[, ]+([0-9]+[0-9]*\\.[0-9]+)[° ]+([EW])\\s*/', $sQuery, $aData)) {
+            /*                     1                           2          3                           4
              * degrees decimal
              * 40.446° N 79.982° W
              */
             $sFound    = $aData[0];
             $fQueryLat = ($aData[2]=='N'?1:-1) * ($aData[1]);
             $fQueryLon = ($aData[4]=='E'?1:-1) * ($aData[3]);
-        } elseif (preg_match('/(\\[|^|\\b)(-?[0-9]+[0-9]*\\.[0-9]+)[, ]+(-?[0-9]+[0-9]*\\.[0-9]+)(\\]|$|\\b)/', $sQuery, $aData)) {
-            /*                 1          2                             3                        4
+        } elseif (preg_match('/(\\s*\\[|^\\s*|\\s*)(-?[0-9]+[0-9]*\\.[0-9]+)[, ]+(-?[0-9]+[0-9]*\\.[0-9]+)(\\]\\s*|\\s*$|\\s*)/', $sQuery, $aData)) {
+            /*                 1                   2                             3                        4
              * degrees decimal
              * 12.34, 56.78
+             * 12.34 56.78
              * [12.456,-78.90]
              */
             $sFound    = $aData[0];
             $fQueryLat = $aData[2];
             $fQueryLon = $aData[3];
         } else {
-            return False;
+            return false;
         }
 
         $oPt = new NearPoint($fQueryLat, $fQueryLon);
 
-        if (!$oPt->isValid()) return False;
+        if (!$oPt->isValid()) return false;
 
         $sQuery = trim(str_replace($sFound, ' ', $sQuery));
 
         return array('pt' => $oPt, 'query' => $sQuery);
     }
-
 }