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List Info
Thread: Create a new cherrypy instance
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| Create a new cherrypy instance |
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2006-11-09 16:18:35 |
Dear all,
I have to write a web program that permits to an user to
start some
calculations on a cluster. Each user has a home directory,
so the
application has to be able to write in the user home
directory.
I think to write something that do that:
1) from a main cherrypy server instance ask for username and
password
(that is easy)
2) the main starts a new cherrypy server instance with the
privileges
of the user that entered the credential
3) the user continue to work in the new instance
4) at the end, this instance has to be killed
Is it possible? If yes how can I start the new instance?
Otherwise there are other methods more intelligent than me?
Thanks
Enrico
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| Create a new cherrypy instance |
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2006-11-09 16:30:01 |
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On 11/9/06, morellik < enrico.morelligmail.com">enrico.morelligmail.com> wrote:
Dear all,
I have to write a web program that permits to an user to start some
calculations on a cluster. Each user has a home directory, so the
application has to be able to write in the user home directory.
I think to write something that do that:
1) from a main cherrypy server instance ask for username and password
(that is easy)
The "asking" part is easy - the confirming part is less so. That depends on the authentication backend. If it is simply the /etc/passwd file, I think you will run into problems, as most distros use a shadow password setup, which the stdlib module pwd can't handle. Does anyone know if spwd (module for handling shadow password files) made it into Python
2.5?
2) the main starts a new cherrypy server instance with the privileges
of the user that entered the credential
This sounds a bit tricky, but doable. I don't have any advice to offer on the specifics of doing it though.
3) the user continue to work in the new instance
4) at the end, this instance has to be killed
Is it possible? If yes how can I start the new instance?
Otherwise there are other methods more intelligent than me?
Why does the user's homedir need to be involved? Can't the app create private subdirs for each user and write the data there? Then users can fetch whatever data the app is writing from their private subdir?
Christian
http://www.dowski.com
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| Create a new cherrypy instance |
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2006-11-10 10:26:19 |
Christian Wyglendowski wrote:
> On 11/9/06, morellik <enrico.morelligmail.com> wrote:
>
> Why does the user's homedir need to be involved? Can't
the app create
> private subdirs for each user and write the data there?
Then users can
> fetch whatever data the app is writing from their
private subdir?
>
Because the data must be private. If I create a directory
owned by the
programs owner,
a normal user cannot access to his data and if the user can,
all users
can.
Enrico
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