[Zope] Remote scripting?

Tue, 14 Aug 2001 14:26:17 +0200

Hi Ren=E9,

please dont send HTML to a list!
To your problem:
Whatever a server can send can be send with zope as well.
(Ok, multipart documents are another thing, but IE does not
work with them anyway)
The scripting basically calls a page on the server which is
provided via scripting. There can ba a CGI or whatever script.

The whole conversation looks like this:

GET /rs/jsrs/select/select_rs.asp?C=3Djsrs1&F=3DmodelList&P0=3D[4]&U=3D997788891480 HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/msword, */*
Referer: http://www.ashleyit.com/rs/jsrs/select/select.asp
Accept-Language: de,en;q=3D0.5
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows 98)
Host: www.ashleyit.com
Connection: Keep-Alive
Cookie: ASPSESSIONIDQQQGGGCS=3DIDLLAEGAEPFFEAOFPKJECGNG

HTTP/1.1 200 OK
Server: Microsoft-IIS/4.0
Date: Tue, 14 Aug 2001 11:36:10 GMT
Content-Type: text/html
Expires: Tue, 14 Aug 2001 11:36:10 GMT
Cache-control: private
Transfer-Encoding: chunked

df
<html><head></head><body=20
onload=3D"p=3Ddocument.layers?parentLayer:window.parent;p.jsrsLoaded('jsrs1');">jsrsPayload:<br>=
<fo
rm name=3D"jsrs_Form"><textarea=20
name=3D"jsrs_Payload">10~Elantra|11~Sonata|</textarea></form></body></html>
0

So your script on zope side (ideally a Python Script)
has to produce a <textarea> with the elements in it.

This gets parsed by the script in the browser.

While this is a nice mechanism you schould really think about
if it is really a plus for your application.
There are several riscs connected to this solution. One important
is that the browsers must be recognized by the script. This is really
a weak point in it. Imagine users with browsers which could in theory
use the script, but are not recogniced.
The other thing is with people without scripting enabled because of
serious security concerns.

I think a form with all elements and a supporting JavaScript can be helpful.
But without scripting, the page schould at least be useable.

Regards
Tino

--On Dienstag, 14. August 2001 11:43 +0200 Ren=E9 Olsthoorn <rol@mediasys.nl> wrote:

>
> Hello,
>
> Remote Scripting means: calling server-side code from a client-side script without causing
> the active page to be reloaded.
>
> (for more information see http://www.ashleyit.com/rs/)
>
> The website mentioned above contains an HTML page which contains two comboboxes. The choices
> offered in the second combobox are calculated on the server, depending on the choice that the
> user makes in the first combobox.
>
> The values of the second combobox are retrieved from the server by communicating with a
> java-servlet, and all this is done without reloading the active page. (using DHTML,
> ofcourse).
>
> Has anyone done such a thing with Zope, in stead of a java-servlet?
>
> Cheers,
> Ren=E9 Olsthoorn,
> Mediasystemen,
> The Netherlands.