2008/7/19 Thierry Dumont <[EMAIL PROTECTED]>:
> I have posted some time ago some messages about ldap identification I
> want to put in Sage...
>
> It is not so easy as I could imagine: Sage relies on "twisted" (and may
> be on some parts of Zope -am I wrong?- to do this);
1. Sage *only* uses Twisted to give a provide a web-based interface
to the Sage notebook. The sage notebook system makes no further
use of Twisted whatever. In particular, Twisted is "hardly" relevant
to authentication. There is all that twisted-using code in avatars.py
that might seem to be relevant to authentication for the sage notebook,
but trust me -- it isn't. It is just something that uses what is really
relevant which is the function "user" in the notebook.py file. Here's
the code in avatars.py that calls into this:
def requestAvatarId(self, credentials):
username = credentials.username
password = credentials.password
try:
U = twist.notebook.user(username)
except KeyError:
return defer.succeed(FailedLogin(username, failure_type = 'user'))
if U.password_is(password):
return defer.succeed(username)
else:
return defer.succeed(FailedLogin(username,failure_type='password'))
Notice U = .. and U.password_is(...). That's all that matters for
authentication,
and that code in notebook.py and user.py is almost as trivial as you could
possibly imagine, using nothing at all interesting (except a hash function).
2. The Sage notebook makes absolutely *no* use whatsoever of ZOPE
or ZODB.
> may be what I want
> to do is not very complicated but I am lost in "twisted", and I lack time.
You have to modify the above-pasted code to do something
else involving twist.notebook. This "twist.notebook" thing
is, by the way, nothing more than a global instance of a Notebook
object (as defined in notebook.py) that happens to be a module-scope
variable in the twist.py file. Otherwise it has nothing to do with
twisted.
Why don't we work together on this. Write a pure-python file
called something like "notebook_ldap.py" that provides a
simple interface to the ldap stuff you have setup. Show
some examples of how to use it from the command line
to authenticate a user. Then I bet *i* can easily plug your
code into the notebook so that it will work.
> I would like to trace all the procedures called during the
> identification, in the notebook.
>
> In python, there exists some tools:
>
> python -m pdb myprogram.py
> or
> python trace.py --count monprog.py
>
> to know where the prgram goes.
>
> But how to do this in Sage, with the notebook ?
-- William
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