1 files changed, 69 insertions, 0 deletions
diff --git a/php/lib/geo.php b/php/lib/geo.php
new file mode 100644
index 0000000..bd80744
--- /dev/null
+++ b/php/lib/geo.php
@@ -0,0 +1,69 @@
+<?php
+/**
+ *  Functions for netgeo lookups.
+ *  @package mirror
+ *  @subpackage lib
+ */
+
+/**
+ *  Calculate the distance between two geo points.
+ *  @param int $lat1 latitude of first point
+ *  @param int $lon1 longitude of first point
+ *  @param int $lat2 latitude of second point
+ *  @param int $lon2 longitude of second point
+ *  @return int $distance rounded distance in _km_ between these points
+ */
+function geo_get_distance($lat1,$lon1,$lat2,$lon2)
+{
+    return null; 
+}
+
+/**
+ *  Query NetGeo based on API and parse results.
+ *  @param string $ip an IP address 
+ *  @param string $method lookup method, based on NetGeo API.
+ *  @return array|false array containing results or false on failure
+ */
+function geo_query($ip,$method='getRecord')
+{
+    $raw = strip_tags(file_get_contents(GEO_URL.'?target='.$ip.'&method='.$method));
+    $lines = array_slice(explode("\n",$raw),5);
+    array_pop($lines);
+    foreach ($lines as $row)
+    {
+        $buf = preg_split('/:\s*/',$row);
+        $data[$buf[0]] = $buf[1];
+    }
+    return $data;
+}
+
+/**
+ *  Get longitude and latitude of an IP.
+ *  @param string $ip an IP address
+ *  @return array|false array containing results or false on failure
+ */
+function geo_get_coordinates($ip)
+{
+    return ($data = geo_query($ip,'getLatLong'))?array('lat'=>$data['LAT'],'long'=>$data['LONG']):false;
+}
+
+/**
+ *  Get complete record based on IP.
+ *  @param string $ip an IP address
+ *  @return array|false array containing results or false on failure
+ */
+function geo_get_record($ip)
+{
+    return ($data = geo_query($ip,'getRecord'))?$data:false;
+}
+
+/**
+ *  Get country of an IP.
+ *  @param string $ip an IP address
+ *  @return string|false array containing results or false on failure
+ */
+function geo_get_country($ip)
+{
+    return ($data = geo_query($ip,'getCountry'))?$data['COUNTRY']:false;
+}
+?>