Guard against network failures in getDatabaseDate()

[nominatim.git] / lib / lib.php

diff --git a/lib/lib.php b/lib/lib.php
index de100fdcbc6a9314bb21b77e7d322aa4a4b33408..cb599ae8b1c46ed758b9f0d52fe3e3a01b571c42 100644 (file)
--- a/lib/lib.php
+++ b/lib/lib.php
@@ -33,6 +33,23 @@ function getCacheMemoryMB()
     return (int)($aMatches[1]/1024);
 }
 
+function getDatabaseDate(&$oDB)
+{
+    // Find the newest node in the DB
+    $iLastOSMID = $oDB->getOne("select max(osm_id) from place where osm_type = 'N'");
+    // Lookup the timestamp that node was created
+    $sLastNodeURL = 'https://www.openstreetmap.org/api/0.6/node/'.$iLastOSMID."/1";
+    $sLastNodeXML = file_get_contents($sLastNodeURL);
+
+    if ($sLastNodeXML === false) {
+        return false;
+    }
+
+    preg_match('#timestamp="(([0-9]{4})-([0-9]{2})-([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})Z)"#', $sLastNodeXML, $aLastNodeDate);
+
+    return $aLastNodeDate[1];
+}
+
 
 function bySearchRank($a, $b)
 {
@@ -463,11 +480,14 @@ function getResultDiameter($aResult)
 
 function javascript_renderData($xVal, $iOptions = 0)
 {
-    if (defined('PHP_VERSION_ID') && PHP_VERSION_ID > 50400)
-        $iOptions |= JSON_UNESCAPED_UNICODE;
+    $iOptions |= JSON_UNESCAPED_UNICODE;
+    if (isset($_GET['pretty']) && in_array(strtolower($_GET['pretty']), array('1', 'true'))) {
+        $iOptions |= JSON_PRETTY_PRINT;
+    }
+
     $jsonout = json_encode($xVal, $iOptions);
 
-    if (! isset($_GET['json_callback'])) {
+    if (!isset($_GET['json_callback'])) {
         header("Content-Type: application/json; charset=UTF-8");
         echo $jsonout;
     } else {
@@ -599,89 +619,6 @@ function addQuotes($s)
     return "'".$s."'";
 }
 
-function validLatLon($fLat, $fLon)
-{
-    return ($fLat <= 90.1 && $fLat >= -90.1 && $fLon <= 180.1 && $fLon >= -180.1);
-}
-
-function looksLikeLatLonPair($sQuery)
-{
-    // Do we have anything that looks like a lat/lon pair?
-    // returns array(lat,lon,query_with_lat_lon_removed)
-    // or null
-    $sFound    = null;
-    $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
-         * degrees decimal minutes
-         * N 40 26.767, W 79 58.933
-         * N 40°26.767′, W 79°58.933′
-         */
-        $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
-         * degrees decimal minutes
-         * 40 26.767 N, 79 58.933 W
-         * 40° 26.767′ N 79° 58.933′ W
-         */
-        $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
-         * degrees decimal seconds
-         * N 40 26 46 W 79 58 56
-         * N 40° 26′ 46″, W 79° 58′ 56″
-         */
-        $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
-         * degrees decimal seconds
-         * 40 26 46 N 79 58 56 W
-         * 40° 26′ 46″ N, 79° 58′ 56″ W
-         */
-        $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
-         * 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
-         * 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
-         * degrees decimal
-         * 12.34, 56.78
-         * [12.456,-78.90]
-         */
-        $sFound    = $aData[0];
-        $fQueryLat = $aData[2];
-        $fQueryLon = $aData[3];
-    }
-
-    if (!validLatLon($fQueryLat, $fQueryLon)) return;
-    $sQuery = trim(str_replace($sFound, ' ', $sQuery));
-
-    return array('lat' => $fQueryLat, 'lon' => $fQueryLon, 'query' => $sQuery);
-}
-
 
 function geometryText2Points($geometry_as_text, $fRadius)
 {