File : src/aws-resources.adb
------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2002-2003 --
-- ACT-Europe --
-- --
-- Authors: Dmitriy Anisimkov - Pascal Obry --
-- --
-- This library 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 library 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. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
------------------------------------------------------------------------------
-- $Id: aws-resources.adb,v 1.19 2004/02/02 16:54:50 anisimko Exp $
with AWS.Resources.Files;
with AWS.Resources.Embedded;
package body AWS.Resources is
use Ada;
-----------
-- Close --
-----------
procedure Close (Resource : in out File_Type) is
begin
Close (Resource.all);
Free (Resource);
end Close;
-----------------
-- End_Of_File --
-----------------
function End_Of_File (Resource : in File_Type) return Boolean is
begin
return End_Of_File (Resource.all);
end End_Of_File;
-----------
-- Exist --
-----------
function Exist (Name : in String) return File_Instance is
Result : File_Instance;
begin
Result := Embedded.Exist (Name);
if Result = None then
return Files.Exist (Name);
else
return Result;
end if;
end Exist;
---------------
-- File_Size --
---------------
function File_Size (Name : in String) return Stream_Element_Offset is
begin
if Resources.Embedded.Is_Regular_File (Name) then
return Resources.Embedded.File_Size (Name);
else
return Resources.Files.File_Size (Name);
end if;
end File_Size;
--------------------
-- File_Timestamp --
--------------------
function File_Timestamp (Name : in String) return Ada.Calendar.Time is
begin
if Resources.Embedded.Is_Regular_File (Name) then
return Resources.Embedded.File_Timestamp (Name);
else
return Resources.Files.File_Timestamp (Name);
end if;
end File_Timestamp;
--------------
-- Get_Line --
--------------
procedure Get_Line
(Resource : in out File_Type;
Buffer : out String;
Last : out Natural)
is
Byte : Stream_Element_Array (1 .. 1);
Last_Ind : Stream_Element_Offset;
begin
Last := 0;
Resource.LFT := False;
for I in Buffer'Range loop
Read (Resource.all, Byte, Last_Ind);
exit when Last_Ind < Byte'Last;
Buffer (I) := Character'Val (Byte (1));
-- Check for end of line
if Buffer (I) = ASCII.LF then
-- This is LF
if I > Buffer'First
and then Buffer (I - 1) = ASCII.CR
then
-- And previous char was a CR, skip it
Last := Last - 1;
end if;
Resource.LFT := True;
exit;
end if;
Last := Last + 1;
end loop;
end Get_Line;
-------------
-- Is_GZip --
-------------
function Is_GZip (Name : in String) return Boolean is
begin
return Name'Length > GZip_Ext'Length
and then Name (Name'Last - GZip_Ext'Length + 1 .. Name'Last)
= GZip_Ext;
end Is_GZip;
---------------------
-- Is_Regular_File --
---------------------
function Is_Regular_File (Name : in String) return Boolean is
begin
return Resources.Embedded.Is_Regular_File (Name)
or else Resources.Files.Is_Regular_File (Name);
end Is_Regular_File;
-------------------
-- LF_Terminated --
-------------------
function LF_Terminated (Resource : in File_Type) return Boolean is
begin
return Resource.all.LFT;
end LF_Terminated;
----------
-- Open --
----------
procedure Open
(File : out File_Type;
Name : in String;
Form : in String := "";
GZip : in out Boolean) is
begin
-- Try to open the file in memory, if not found open the file on disk
Resources.Embedded.Open (File, Name, Form, GZip);
if File = null then
Resources.Files.Open (File, Name, Form, GZip);
end if;
end Open;
procedure Open
(File : out File_Type;
Name : in String;
Form : in String := "")
is
GZip : Boolean := False;
begin
Open (File, Name, Form, GZip);
end Open;
----------
-- Read --
----------
procedure Read
(Resource : in out File_Type;
Buffer : out Stream_Element_Array;
Last : out Stream_Element_Offset) is
begin
Read (Resource.all, Buffer, Last);
end Read;
-----------
-- Reset --
-----------
procedure Reset (Resource : in out File_Type) is
begin
Reset (Resource.all);
end Reset;
----------
-- Size --
----------
function Size (Resource : in File_Type) return Content_Length_Type is
begin
return Size (Resource.all);
end Size;
end AWS.Resources;