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Machisuji

Seaside - Everlasting Session?

Hello!

I was wondering if it was possible to have an everlasting session.
Is this possible?

My application's user interface is rendered locally within a web browser using seaside.
Its content is updated asynchronously by the application.

However between some updates so much time can pass that the session expires
and if the Javascript then wants to access the page again it only says "Error: you are forbidden to access "http://localhost:7777/MyApp"".

I'm using "html scriptaculous update: ..." to create the code which performs the update,
which is triggered by my own javascript asynchronously.

Karsten Kusche

Re: [vwnc] Seaside - Everlasting Session?

Hi Machisuji,

you can just add a periodic updater to the page that simply pings the
server. That keeps the session allive and if you close the window
eventually the session expires and is garbage collected. If you have
sessions that don't expire, they don't get cleaned up and your image grows.

Kind Regards
Karsten

Am 09.12.09 14:47, schrieb Machisuji:

> Hello!
>
> I was wondering if it was possible to have an everlasting session.
> Is this is possible?
>
> My application's user interface is rendered locally within a web browser
> using seaside.
> Its content is updated asynchronously by the application.
>
> However between some updates so much time can pass that the session expires
> and if the Javascript then wants to access the page again it only says
> "Error: you are forbidden to access "http://localhost:7777/MyApp"".
>
> I'm using "html scriptaculous update: ..." to create the code which performs
> the update,
> which is triggered by my own javascript asynchronously.
>
>

--
Karsten Kusche - Dipl. Inf. - [hidden email]
Georg Heeg eK - Köthen
Handelsregister: Amtsgericht Dortmund A 12812

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Dziedzic, Peter

[vwnc] socket IPSocketAddress servicePortByName:

In reply to this post by Machisuji

hello,

i try a little bit socket-programming.
I have a question: The IPSocketAddress servicePortByName:SERVICENAMESTRING gives me the port of an service.
But how do i add a new service in the list?
E.g. i want to create a new service named 'boo'.
How can i add this service to my service list?
Because IPSocketAddress servicePortByName: 'boo' makes now a exception.

Thanks.

Mit freundlichen Grüßen - best regards,

Peter Dziedzic

--------------------------------------

Carl Zeiss Industrielle Meßtechnik GmbH/ Industrial Metrology
Softwareentwicklung/Software Development

P e t e r D z i e d z i c

73446 Oberkochen, Germany
e-mail: [hidden email]
http://www.zeiss.de/imt

Carl Zeiss Industrielle Messtechnik GmbH
Carl-Zeiss-Straße 22, 73447 Oberkochen
Aufsichtsratsvorsitzender: Dr. Dieter Kurz
Geschäftsführer: Dr. Rainer Ohnheiser, Felix Hoben, Hanspeter Mürle
Sitz der Gesellschaft: 73446 Oberkochen, Deutschland
Amtsgericht Ulm, HRB 501561, USt-IdNr.: DE 811 515 346

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Jan Weerts

Re: [vwnc] socket IPSocketAddress servicePortByName:

Hi Peter,

Dziedzic, Peter wrote:
> i try a little bit socket-programming.
> I have a question: The IPSocketAddress
servicePortByName:SERVICENAMESTRING
> gives me the port of an service.
> But how do i add a new service in the list?
> E.g. i want to create a new service named 'boo'.
> How can i add this service to my service list?
> Because IPSocketAddress servicePortByName: 'boo' makes now
> a exception.

I guess, a service name is the equivalent of what you find listed in
/etc/services on a *nix machine or
C:\WINDOWS\system32\drivers\etc\services on Windows (at least Windows
XP). As the comments therein state, these are registered service names
with IANA, see http://www.iana.org/assignments/port-numbers. To add
something there either apply something officially (see
http://www.iana.org/protocols/apply/) or try to add your service name
to the configuration files on all relevant machines.

Regards
Jan
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Dziedzic, Peter

[vwnc] Antwort: Re: socket IPSocketAddress servicePortByName:

hello,

thanks for your answer. it works.

Mit freundlichen Grüßen - best regards,

Peter Dziedzic

--------------------------------------

Carl Zeiss Industrielle Meßtechnik GmbH/ Industrial Metrology
Softwareentwicklung/Software Development

P e t e r D z i e d z i c

73446 Oberkochen, Germany

tel: +49 73 64 20-84 48
fax: +49 73 64 20-48 00
e-mail: [hidden email]
http://www.zeiss.de/imt

Carl Zeiss Industrielle Messtechnik GmbH
Carl-Zeiss-Straße 22, 73447 Oberkochen
Aufsichtsratsvorsitzender: Dr. Dieter Kurz
Geschäftsführer: Dr. Rainer Ohnheiser, Felix Hoben, Hanspeter Mürle
Sitz der Gesellschaft: 73446 Oberkochen, Deutschland
Amtsgericht Ulm, HRB 501561, USt-IdNr.: DE 811 515 346

Jan Weerts <[hidden email]>
Gesendet von: [hidden email]

11.12.2009 10:18

An	"Dziedzic, Peter" <[hidden email]>
Kopie	[hidden email]
Thema	Re: [vwnc] socket IPSocketAddress servicePortByName:

Hi Peter, Dziedzic, Peter wrote: > i try a little bit socket-programming. > I have a question: The IPSocketAddress servicePortByName:SERVICENAMESTRING > gives me the port of an service. > But how do i add a new service in the list? > E.g. i want to create a new service named 'boo'. > How can i add this service to my service list? > Because IPSocketAddress servicePortByName: 'boo' makes now > a exception. I guess, a service name is the equivalent of what you find listed in /etc/services on a *nix machine or C:\WINDOWS\system32\drivers\etc\services on Windows (at least Windows XP). As the comments therein state, these are registered service names with IANA, see http://www.iana.org/assignments/port-numbers. To add something there either apply something officially (see http://www.iana.org/protocols/apply/) or try to add your service name to the configuration files on all relevant machines. Regards Jan

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Holger Kleinsorgen-4

Re: [vwnc] Seaside - Everlasting Session?

In reply to this post by Karsten Kusche

Am 10.12.2009 09:38, schrieb Karsten:
> Hi Machisuji,
>
> you can just add a periodic updater to the page that simply pings the
> server. That keeps the session allive and if you close the window
> eventually the session expires and is garbage collected. If you have
> sessions that don't expire, they don't get cleaned up and your image grows.

or
- create a subclass of WASession, e.g. EverlastingSession, configure
your application to use this session and implement

EverlastingSession>>isActive
^ self expired not

or
- set sessionExpirySeconds of your session to a very high value

Since only the last n continutations of a session are stored, I wouldn't
expect any unusual image growth.
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