CustomSessionAuth

So you want to customize session auth in CherryPy 3.0? Not a piece of cake, is it? I mean, you ''could'' make a custom login_screen function and just attach it in config like this:

{{{
[/]
tools.session_auth.login_screen = my_login_func
}}}

...but that's not obvious if you're not used to metaprogramming (passing functions around). Here's a more class-based way to do it:

{{{
#!python
import cherrypy
from cherrypy.lib import cptools


class MySessionAuth(cptools.SessionAuth):
    
    def login_screen(self, from_page='..', username='', error_msg=''):
        return """<html><body>
Message: %(error_msg)s!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
<form method="post" action="do_login">
    Login: <input type="text" name="username" value="%(username)s" size="10" /><br />
    Password: <input type="password" name="password" size="10" /><br />
    <input type="hidden" name="from_page" value="%(from_page)s" /><br />
    <input type="submit" />
</form>
</body></html>""" % {'from_page': from_page, 'username': username,
                     'error_msg': error_msg}
    
    def runtool(cls, **kwargs):
        sa = cls()
        for k, v in kwargs.iteritems():
            setattr(sa, k, v)
        return sa.run()
    runtool = classmethod(runtool)

cherrypy.tools.my_session_auth = cherrypy._cptools.HandlerTool(MySessionAuth.runtool)
}}}

What I ''should'' have done was stuck that 'runtool' method in the builtin !SessionAuth class so you'd get it for free. Ah, hindsight. ;)

''--fumanchu''