File : agpl-geoip.adb
------------------------------------------------------------------------------
-- ADAGIO - ADALID - AENEA. --
-- --
-- Copyright (C) 2003 --
-- A. Mosteo. --
-- --
-- Authors: A. Mosteo. (adagio@mosteo.com) --
-- --
-- If you have any questions in regard to this software, please address --
-- them to the above email. --
-- --
-- This program is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, or (at --
-- your option) any later version. --
-- --
-- This program is distributed in the hope that it will be useful, but --
-- WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
-- You are not allowed to use any part of this code to develop a program --
-- whose output would be used to harass or prosecute other users of the --
-- networks Adagio connects with. All data collected with Adagio or a tool --
-- containing Adagio code about other network users must remain --
-- confidential and cannot be made public by any mean, nor be used to --
-- harass or legally prosecute these users. --
------------------------------------------------------------------------------
-- $Id: agpl-geoip.adb,v 1.3 2004/02/03 22:52:08 Jano Exp $
with Agpl.Ip;
with Agpl.Strings.Fields;
with Text_io;
package body Agpl.Geoip is
----------------
-- Parse_line --
----------------
procedure Parse_line (Line : in String) is
subtype LLInteger is Long_long_integer;
Lbound : Long_long_integer;
NEntry : Ip_entry;
Name : Ustring;
use Agpl.Strings.Fields;
use IP_maps;
use Code_maps;
begin
LBound := LLInteger'Value (Select_field (Line, 6, '"'));
NEntry.Upper_bound := LLInteger'Value (Select_field (Line, 8, '"'));
NEntry.Code := Select_field (Line, 10, '"');
Name := U (Select_field (Line, 12, '"'));
Insert (IP_table, LBound, NEntry);
Insert (Code_table, NEntry.Code, Name);
end Parse_line;
------------------------------------------------------------------------
-- Init --
------------------------------------------------------------------------
-- Path to database
procedure Init (Database : in String) is
use Text_io;
F : File_type;
Line : String (1 .. 255);
Last : Natural;
begin
Open (F, Name => Database, Mode => In_file);
while not End_of_file (F) loop
Get_line (F, Line, Last);
Parse_line (Line (Line'First .. Last));
end loop;
Close (F);
exception
when others =>
if Is_open (F) then
Close (F);
end if;
raise;
end Init;
------------------------------------------------------------------------
-- Country_code_by_addr --
------------------------------------------------------------------------
-- Addr in dot format
function Country_code_from_addr (Addr : in String) return Country_code is
use Ip_maps;
N : Long_long_integer := Ip.To_number (Ip.Strip_port (Addr));
I : Iterator_type := Lower_bound (Ip_table, N);
begin
if I /= Back (Ip_table) then
if Key (I) = N then
return Element (I).Code; -- <-------- EXACT MATCH
else
I := Pred (I);
end if;
else
I := Pred (I);
end if;
if I = Back (Ip_table) then
return Unknown_country;
elsif Element (I).Upper_bound < N then
return Unknown_country;
else
return Element (I).Code;
end if;
end Country_code_from_addr;
------------------------------------------------------------------------
-- Country_name_from_addr --
------------------------------------------------------------------------
-- Addr in dot format, port optional
function Country_name_from_addr (Addr : in String) return String is
begin
return Country_name_from_code (Country_code_from_addr (Addr));
end Country_name_from_addr;
------------------------------------------------------------------------
-- Country_name_from_code --
------------------------------------------------------------------------
-- Will work only for countries with existing IP ranges.
-- "Unknown" otherwise.
function Country_name_from_code (Code : in Country_code) return String is
use Code_maps;
I : Iterator_type := Find (Code_table, Code);
begin
if I /= Back (Code_table) then
return S (Element (I));
else
return "Unknown";
end if;
end Country_name_from_code;
------------------------------------------------------------------------
-- Flag_code_from_country_code --
------------------------------------------------------------------------
-- returns "unknown" instead of "??", else the code
function Flag_code_from_country_code (Code : in Country_code)
return String
is
begin
if Code = "??" then
return "unknown";
else
return Code;
end if;
end Flag_code_from_country_code;
end Agpl.Geoip;