# GNUstepWeb HOWTO

0.1
5 february, 2000

This document explains how to build and manage GNUstepWeb applications.

2000 Free Software Foundation, Inc.
Introduction

This document explains how to build GNUstepWeb applications, explain differences from Apple WebObjects and known bug of these libraries.

Project wrapper

Follow these guidelines to maintain your GSWeb application wrapper.

MyApp/ Application wrapper Main.gswc/ First page requested by GSWeb Main.html Main.gswd

MyApp_main.m main() function Main.m Your Main class code Main.h Your Main class interface

GNUmakefile Makefile.preamble Makefile.postamble

Main.gswa/ Compiled application Main.debug/ Compiled application with debug support
Makefiles

Debug

In order to debug your application compile it with "gmake debug=yes" and install with "gmake install debug=yes". You'll find your application in GNUSTEP_DOMAIN/GNUSTEP_LIBRARY/GSWApps/MyApp.gswa

Now you can enable debug starting your app with -GSWebDebug=<option>

Options ------------- dflt GSWebFn seriousError exception error gswdync low gswcomponents associations sessions bundles requests resmanager options info

There are two special options: all and most. The following table explain which options enable.

Options all most ------------- --- ---- dflt x x GSWebFn x seriousError x x exception x x error x x gswdync x x low x gswcomponents x x associations x x sessions x bundles x requests x x resmanager x options x info x x

NOTE: GSWeb will search componentes first in GNUSTEP_SYSTEM_ROOT/GSWApps/Myapp.gswa so before start your debug app remove or update MyApp.gswa wrapper with "gmake install".

Threaded applications

By default GSWeb will start your application in Multi Thread mode. In order to use this facility your libobjc.a must be compiled with thread support, else you app won't work.

If you don't have ObjC thread support start your app with -GSWMTEnabled NO

WebObjects compatibility

WebScript is not implemented yet, you can only use compiled components.

You must use Objective-C code, at the moment there aren't equivalent Java classes.

The following table explain suffix differences:

Name WebObjects GSWeb ---- ---------- ----- Application woa gswa Component wo gswc Component definition wod gswd Script wos gsws Archive woo gswi Library woso gswso URL Prefix /WebObjects /GSWeb Resource request handler wr rr Component request handler wo cr Direct request handler wa dr ObjC classes prefix WO GSW

If you need WO name space compatibility set to 1 GSWEB_NAMES in GSWeb.framework/GSWConfig.h and recompile all the libraries.

Known bugs

In order to make your application working you can follow these guidelines:

1. Always create an Application and Session class also if you don't use them.

`@interface Session:GSWSession { } @end @interface Application:GSWApplication { } @end @implementation Session @end @implementation Application @end`

2. Start your application with -GSWHost hostname else it will crash.

4. The HTML parser has some problems with percentage fields, eg:

<TABLE WIDTH=100% BORDER="0"> This does NOT work <TABLE WIDTH="100%" BORDER="0"> This work

Documentation

You can find WebObjects documentation and good tutorials here

Trademarks

WebObjects is a trademark of Apple Computer, Inc.