18 Jul
2008
18 Jul
'08
11:14 a.m.
Hi,
I think I found a bug in MyFormAuthenticator. In line 147 remember me is set
to "false" if it is not checked on the login page:
rememberme = (rememberme == null) ? "false" : rememberme;
But the method processLogin() expects it to be NULL if the user doesn't want
to use the remember feature (line 178-187):
if (this.persistentLoginManager != null) {
// did the user request that their login be persistent?
if (rememberme != null) {
// remember login
this.persistentLoginManager.rememberLogin(request,
response, username, password);
} else {
// forget login
this.persistentLoginManager.forgetLogin(request,
response);
}
}
The problem is that if I fix this bug by removing line 147 the login process
doesn't work anymore! I discovered this while I was implementing OpenID
authentication support. I tried to debug it now two days but I didn't
succed. The same problem occurs with my OpenID implementation. I'm need to
tell XWiki that user xy was logged in and tried to do that by setting the
user principal in the request object
request.setUserPrincipal(principal);
but it doesn't work. Is there some documentation about securityfilter
available somewhere? I looked on securityfilter.sourceforge.net and googled
for it but I didn't found anything.
My next question is how I can add a "openid_identifier" property to the
XWikiUsers class as a "XClass" as proposed by Sergiu:
I wouldn't add a new property to the XWikiUsers
class; this leads to very
thick classes, like
XWikiPreferences, with properties used only in specific cases. I'd rather
add a new XClass, for
example XWiki.OpenIdAccount, and user profiles will have this kind of
objects attached.
I didn't found any information on that. How is that done? How can I then
search for the user with a specific OpenID identifier?
Thank you very much,
Markus
18 Jul
18 Jul
5:54 p.m.
New subject: [xwiki-devs] [gsoc] Bug in MyFormAuthenticator? How should securityfilterwork?
I think I found a bug in MyFormAuthenticator. In line
147 remember me is
set
to "false" if it is not checked on the login page:
OK, now I understand it.. it isn't a bug but the PersistentLoginManager is
also used just for session cookies..Kind of misleading naming and variable
values (rememberme = "false").
I'm my opinion that's kind of a security flaw. The password is send with
each request to the server. That shouldn't happen. OK, it's encrypted and
the key can be changed in xwiki.cfg but who does that!? Or is that key
generated somehow randomly? I didn't looked into that.
Another weakness is that passwords are stored in clear-text in the DB.
That's normally considered as a no-go. Only password hashes (with salts)
should be stored in the DB.
Anyway, the current scheme is causes problems for authentication methods
where no password is involved, like in OpenID. How should I address that?
The simplest thing would be to automatically create a (random) password for
those accounts. Otherwise I think I'll have to change quite a lot.
My other question is still open :-)
------%<-----------------------
My next question is how I can add a "openid_identifier" property to the
XWikiUsers class as a "XClass" as proposed by Sergiu:
I wouldn't add a new property to the XWikiUsers
class; this leads to very
thick classes, like
XWikiPreferences, with properties used only in specific cases. I'd rather
add a new XClass, for
example XWiki.OpenIdAccount, and user profiles will have this kind of
objects attached.
I didn't found any information on that. How is that done? How can I then
search for the user with a specific OpenID identifier?
24 Jul
24 Jul
10:25 a.m.
New subject: [xwiki-devs] [gsoc] Bug in MyFormAuthenticator? How should securityfilterwork?
Hi Markus,
On Fri, Jul 18, 2008 at 5:54 PM, Markus Lanthaler
<mark_lanthaler(a)gmx.net> wrote:
Yes this has been detailed by Raffaello, we are trying to find some
solution for it.
I think I
found a bug in MyFormAuthenticator. In line 147 remember me is
set
to "false" if it is not checked on the login page:
OK, now I understand it.. it isn't a bug but the PersistentLoginManager is
also used just for session cookies..Kind of misleading naming and variable
values (rememberme = "false").
I'm my opinion that's kind of a security flaw. The password is send with
each request to the server. That shouldn't happen. OK, it's encrypted and
the key can be changed in xwiki.cfg but who does that!? Or is that key
generated somehow randomly? I didn't looked into that. Another weakness is that passwords are stored in
clear-text in the DB.
That's normally considered as a no-go. Only password hashes (with salts)
should be stored in the DB.
Anyway, the current scheme is causes problems for authentication methods
where no password is involved, like in OpenID. How should I address that?
The simplest thing would be to automatically create a (random) password for
those accounts. Otherwise I think I'll have to change quite a lot.
Seems a very big refactor so I doubt it's feasible for this OpenID GSOC.
I don't see anything else than the random password you propose if we
don't refactor the whole process. So it's ok for me.
Maybe someone has any other idea ?
My other question is still open :-)
------%<-----------------------
My next question is how I can add a "openid_identifier" property to the
XWikiUsers class as a "XClass" as proposed by Sergiu:
--
Thomas Mortagne
I wouldn't add a new property to the
XWikiUsers class; this leads to very
thick classes, like
XWikiPreferences, with properties used only in specific cases. I'd rather
add a new XClass, for
example XWiki.OpenIdAccount, and user profiles will have this kind of
objects attached.
I didn't found any information on that. How is that done? How can I then
search for the user with a specific OpenID identifier?
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Thomas Mortagne