World: r3wp

this is my test.r file and im calling it from a webapp

from the root of a webapp

Ok. Will test that case locally later tonight, dinner time now.

cool, thx, i'll be here!

i want cheyenne to be less sucky, really. it's one of the nicest 
rebol projects and it's a shame if i can break it every second day... 
makes me not very proud of it... :/

There are countless ways to break one's code using REBOL scripts. 
;-)

Also, about using plain REBOL scripts in RSP engine, it was a last 
year request from Carl, it wasn't part of my planned feature list 
to support, so it can cause new issues that I have not forseen when 
building the RSP engine. You are the first one to report me issues 
with such scripts, so I guess nobody except you and Carl are using 
this approach. Anyway, your reports are helping me make it more reliable.

until yesterday the very same script was within <% %> tags actually 
and this effect was still observable.

just the latest svn version didn't accept the tags in a .r file anymore, 
that's why im showing it as a REBOL[] script.

otherwise, i was just following common sense and trying to get things 
done in an ultra primitive way :)

the script worked and still works as a CGI script btw, so i bravely 
switched over to the RSP handler as it's been suggested on the "Basics" 
documentation page and i was using the very same unless value? 'my-object 
pattern to load my libs.

what does "run Cheyenne with a non-persistent? worker." mean, btw? 
-w 0?

Yes, it means starting it with -w 0.

It works here in a vhost (not in a webapp) using:

%obj.r  => REBOL [] to-object: func [a [block!]][context a]
%test.r => REBOL []  do %../libs/obj.r  probe to-object [a: 1]

Testing within a webapp now...

>> read http://localhost/test.r
== "make object! [^/    a: 1^/]"

From a webapp, it works ok too:

%libs/obj.r  => REBOL [] to-object: func [a [block!]][context a]

%www/testapp/test.r => REBOL []  do %../libs/obj.r  probe to-object 
[a: 1]

>> read http://localhost/testapp/test.r
== "make object! [^/    a: 1^/]"

I have disabled the 'auth keyword from /testapp webapp to do this 
test, to avoid being redirected to a login page.

I have run the tests using -w 1, using -w 0, I get a "to-object has 
no value" error.

(im not sure im following u, but i guess u r logging for urself mostly)

Basically, your issue is related to the Cheyenne "debug" mode that 
restart all workers after each request. In normal mode (persistant 
workers), it should work fine.

I am investigating now how Cheyenne's debug mode can causes that 
issue in such case.

im running with -w 1. is it debug mode too?

No.

I can't get the error here using -w 1, only using -w 0.

Can you show me the content of %obj.r from : do %../lib/obj.r?

New Cheyenne revision: 138


FIX: RSP code binding issue with nested DO calls (thanks to Tamas 
Herman for
reporting it).


Please pay attention that this fix is really deep in RSP engine, 
I have tested it with all my RSP apps, but regressions are not excluded. 
Be sure to report me any odd changes in your app behaviour after 
upgrading to r138.

Dunno if this is relevant .. but I tend to use 'do* instead of 'do

do* == do/global == native 'do

There are cases where you want to bind your code to global context, 
so you will use 'do/global. For all other cases, you should just 
use 'do (especially now that nested 'do should to be fixed).

my meaning being that 'do did not work as I expected ...

I should go back and see if this new build fixes the issues I've 
had

OTOH, if it's working .. don't touch it!

just for the sake of test, it would be valuable if u could try your 
'do* code using 'do

since we dont have automated tests for this - i guess - at least 
lets do some manual tests

Anyway, thanks for examining this .. I just avoided the issue!

i was going around it too, by putting my DOs into on-app-start, but 
hey, for rapid development, such basics should work too

I was putting my stuff into app-init.r as well but found it did not 
work

So, I was defining my odbc sources there but they were being overwritten

So, now I load the db from a disk file each time ...

:) im loading my db from files too...

on each request actually

I have mutiple users using a web app on different ports.  Each has 
their own vhost, and their own pages but to keep things simple, each 
web app is the same.  I include a config file each time a rsp page 
is loaded with the db definition instead of in the app-init.r where 
it did not work

When I included the definitions in the app-init, users would access 
other users' db!

Data wants to be free

Switching away from root is impossible when the RSP module is disabled:

7-May-2011/20:07:17+2:00 : make object! [
    code: 311
    type: 'script
    id: 'invalid-path
    arg1: 'mod-rsp
    arg2: none
    arg3: none

    near: [if exists? file: service/mod-list/mod-rsp/sessions/ctx-file 
    [try-chown file uid gid]]
    where: 'set-process-to
]

from crash.log

Kaj: pushed a fix for that in r139.

When I included the definitions in the app-init, users would access 
other users' db!
 

Have you used session variables to store user-specific data? Everything 
else is unsafe.

Thanks, nice turnaround :-)

Next problem when trying to switch away from root:

8-May-2011/17:30:23+2:00 : make object! [
    code: 303
    type: 'script
    id: 'expect-arg
    arg1: 'zero?
    arg2: 'number
    arg3: [number! pair! char! money! time! tuple!]

    near: [if any [zero? gid not zero? set-gid gid] [log/error ["setgid 
    '" group " failed!"]] 
        if
    ]
    where: 'set-process-to
]

I've checked that I'm doing everything right according to the latest 
Cheyenne conventions. I have a fairly standard httpd.cfg with this: