Componentes.Terceros.jvcl/official/3.32/examples/JvXMLDatabase/Sources/ClassRequest.pas

104 lines
2.9 KiB
ObjectPascal

{******************************************************************
JEDI-VCL Demo
Copyright (C) 2002 Project JEDI
Original author:
Contributor(s):
You may retrieve the latest version of this file at the JEDI-JVCL
home page, located at http://jvcl.sourceforge.net
The contents of this file are used with permission, subject to
the Mozilla Public License Version 1.1 (the "License"); you may
not use this file except in compliance with the License. You may
obtain a copy of the License at
http://www.mozilla.org/MPL/MPL-1_1Final.html
Software distributed under the License is distributed on an
"AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
implied. See the License for the specific language governing
rights and limitations under the License.
******************************************************************}
unit ClassRequest;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ClassUtils, Strings, ClassScript;
type
TRequestHandler = class
public
function Request(ADocument, AParams: string; AHeaders: TStringList;
AResult: TStream; AUser: Integer): Boolean;
end;
implementation
{ TRequestHandler }
{**********************************************************************}
function TRequestHandler.Request(ADocument, AParams: string;
AHeaders: TStringList; AResult: TStream; AUser: Integer): Boolean;
var
st: string;
lStream: TFileStream;
begin
result := true;
//Get the file for the request
st := StringReplace(ADocument, '/', '\', [rfReplaceAll]);
if (st <> '') and (st[1] = '\') then
st := Copy(st, 2, MAXINT);
if (st = '') then
st := RS_BASEFILE;
st := ExtractFilePath(Application.ExeName) + 'Documents\' + st;
//Return the raw file
if FileExists(st) then
begin
if LowerCase(ExtractFileExt(st)) = RS_SCRIPT_EXT then
begin
with TScriptHandler.Create do
try
CurrentUser := AUser;
Request(st, AParams, AResult, AHeaders);
finally
Free;
end;
end
else
begin
lStream := TFileStream.Create(st, fmOpenRead and fmShareDenyWrite);
try
AResult.CopyFrom(lStream, 0);
finally
lStream.Free;
end;
end;
st := LowerCase(ExtractFileExt(st));
if st='.css' then
AHeaders.Add('Content-type: text/css')
else if st='.gif' then
AHeaders.Add('Content-type: image/gif')
else if st='.png' then
AHeaders.Add('Content-type: image/png')
else if (st='.jpg') or (st='.jpeg') then
AHeaders.Add('Content-type: image/jpeg')
else if st=RS_SCRIPT_EXT then
AHeaders.Add('Content-type: text/html');
end
else
result := false;
end;
{**********************************************************************}
end.