geoip-functions.pl: Re-write code to lookup the iso country code of a given IP-address.

[ipfire-2.x.git] / config / cfgroot / geoip-functions.pl

diff --git a/config/cfgroot/geoip-functions.pl b/config/cfgroot/geoip-functions.pl
index be50d5e142f448c4b59c9fb0df47eac5e04a2ccf..e8ce8377f583190dec3a1292faa80d8b1a91a4a6 100644 (file)
--- a/config/cfgroot/geoip-functions.pl
+++ b/config/cfgroot/geoip-functions.pl
@@ -23,21 +23,82 @@
 
 package GeoIP;
 
-use Geo::IP::PurePerl;
+require '/var/ipfire/network-functions.pl';
+
 use Locale::Codes::Country;
 
-my $database;
+# Path where all the GeoIP related databases are stored.
+my $geoip_database_dir = "/var/lib/GeoIP";
+
+# Database which contains all IPv4 networks.
+my $address_ipv4_database = "GeoLite2-Country-Blocks-IPv4.csv";
+
+# Database wich contains the locations data.
+my $location_database = "GeoLite2-Country-Locations-en.csv";
 
 sub lookup($) {
        my $address = shift;
+       my $location_id;
+       my $country_code;
+
+       # Check if the given address is valid.
+       unless(&Network::check_ip_address($address)) {
+               return;
+       }
+
+       # Open the address database.
+       open(ADDRESS, "$geoip_database_dir/$address_ipv4_database") or die "Could not open $geoip_database_dir/$address_ipv4_database. $!\n";
+
+       # Loop through the file.
+       while(my $line = <ADDRESS>) {
+               # Remove newlines.
+               chomp($line);
+
+               # Split the line content.
+               my ($network, $geoname_id, $registered_country_geoname_id, $represented_country_geoname_id, $is_anonymous_proxy, $is_satellite_provider) = split(/\,/, $line);
+
+               # Check if the given address is part of the current processed network.
+               if (&Network::ip_address_in_network($address, $network)) {
+                       # Store the geoname_id for this address.
+                       $location_id = $geoname_id;
+
+                       # Break loop.
+                       last;
+               }
+       }
+
+       # Return nothing if no location_id could be found.
+       return unless($location_id);
+
+       # Close filehandle.
+       close(ADDRESS);
+
+       # Open the location database.
+       open(LOCATION, "$geoip_database_dir/$location_database") or die "Could not open $geoip_database_dir/$location_database. $!\n";
 
-       # Load the database into memory if not already done
-       if (!$database) {
-               $database = Geo::IP::PurePerl->new(GEOIP_MEMORY_CACHE);
+       # Loop through the file.
+       while(my $line = <LOCATION>) {
+               # Remove newlines.
+               chomp($line);
+
+               # Split the line content.
+               my ($geoname_id, $locale_code, $continent_code, $continent_name, $country_iso_code, $country_name, $is_in_european_union) = split(/\,/, $line);
+
+               # Check if the correct location_id has been found.
+               if ($geoname_id eq $location_id) {
+                       # Store the county code.
+                       $country_code = $country_iso_code;
+
+                       # Break loop.
+                       last;
+               }
        }
 
-       # Return the name of the country
-       return $database->country_code_by_name($address);
+       # Close filehandle.
+       close(LOCATION);
+
+       # Return the obtained country code.
+       return $country_code;
 }
 
 # Function to get the flag icon for a specified country code.