https://example.com/cas/login not found when redirected from the client CAS login button

hey metzlerd
Thanks for th reply
Let me first give you some more specifications of my drupal client and server site set up.

I have this drupal server site named federation.org which I have configured such that it is accessed using both HTTP and HTTPS protocols.I have tested the https://federation.org before configuring the CAS client module in the client website(testog.org) is configured and it is accessible thru https protocol. Both the drupal sites are set up on the same server with same ip address but with different domain names and databases.
But when I tried to login using the CAS login on the client site I was redirected to the URL:
https://federation.org/cas/login?service=http%3A%2F%2Ftestog.org%2Fcas%3...

where testog.org is my client website.and resulted in 404 error

The requested URL /cas/login was not found on this server.
Apache/2.2.14 (Ubuntu) Server at federation.org Port 443

I have these questions :
can I have my client site (site c) simply on http and not on ssl i.e https?
or do the site client also requires the ssl to be set up?

I have my site server (sites s) accessible both the ways http and https does this create a problem ?
If so can I use any secure login module to make few of the pages of the site use ssl and some not(http) is this acceptable in case of CAS server (site s) ?

DO my organisation need a CAS server being set up some where for this module to work?

" The requested URL /cas/login was not found on this server.
Apache/2.2.14 (Ubuntu) Server at federation.org Port 443"

looking at the above error I still wonder if I have to set up some thing else on the cas server module or do i have to configure it in any other ways

PLease help me with this and please let me know if you need any details.

Sorry for the late reply.
The clean URLS were disabled on my https site and so the cas client couldnt find the URL /cas/login
but know since I have them enabled the client site(c) on using the CAS login is redirected to the controller site or CAS_server site(s).

But know I have 2 more issues
My client site is testog.org
My CAS_server site is https://federation.org

Now let me tell you little about by apache configuration I have configured federation.org such that it can be accesed by both http and https protocol and my client site testog.org is on http protocol.

1) Now the issue is when I try to login using the CAS login button on the client login page(testog.org) I am redirected to https://federation.org but when I login with credentials then there is a redirection to the client site where there is a WSOD the url is "http://testog.org/cas?destination=node&ticket=ST-JXHQUbdREz " .
When I hit the back button it redirects me to https:federation.org and give me this notice " Notice: Undefined index: service in cas_server_login() (line 89 of /var/www/drupal-sites/drupal7fed/sites/all/modules/cas/cas_server.module)."

2) the other issue is when there is some user (already registered in client site and server site) logged in the main site or the site(server) and if I open the client site and try to loginvia CAS the page redirects to "http://testog.org/cas?destination=node&ticket=ST-6mp4vxsgAV" which is again a WSOD

I still think that I am some where wrong with my apache config because the redirections were correct but since there are WSODS I am not able to predict any thing please help me with this concern.

DO you think the configuring of my server site to be accesible in both http and https might be the root cause for all this.I am little confused in this regard because there are lot of sites which use https and http for the same site or may be few pages of site using http and rest with https.I am not sure if it is the issue .I am trying to implement the SSO from several client to a drupal CAS server site in which I will have some http and some HTTPS pages do you think it will be a trouble for CAS SSO to work?.

Any direction or help in this regard is appreciated .

Thanks and sorry for the long description.

I am sorry but I just realized that the php curl module was not installed.I just installed it and now it redirects to
the cas login page i.e "https://federation.org/user?destination=cas/login" and now I am getting another
error :

" CAS Authentication failed!

You were not authenticated.

You may submit your request again by clicking here.

If the problem persists, you may contact the administrator of this site.
phpCAS 1.3.1 using server https://federation.org/cas/ (CAS 2.0)
Skip to main content
drupal7
Error
The website encountered an unexpected error. Please try again later.
Error message:
CAS_AuthenticationException: in CAS_Client->validateCAS20() (line 2753 of /var/www/drupal-sites/drupal7organic/sites/all/modules/cas/CAS/CAS/Client.php). "

from this page now when I access the login page where I logged in (server site login page ) server site I see I am logged in but I get this notice again
" Notice: Undefined index: service in cas_server_login() (line 89 of /var/www/drupal-sites/drupal7fed/sites/all/modules/cas/cas_server.module)."
plaese help me with this.

Thanks for the reply metzlerd
same error as above and in addition it also says

Warning: touch(): Unable to create file casbugg because Permission denied in phpCAS::log() (line 472 of /var/www/drupal-sites/drupal7organic/sites/all/modules/cas/CAS/CAS.php).

Warning: error_log(casbugg): failed to open stream: Permission denied in phpCAS::log() (line 482 of /var/www/drupal-sites/drupal7organic/sites/all/modules/cas/CAS/CAS.php).

and also I found the field
CAS debugging output filename in
"Miscellaneous & Experimental Settings "
but there is no check box to enable. all I did is put a file name(I named it "casbugg") in the input field and saved the form I think that should do ?

and also I have checked and make sure that the only CAS server in enabled on site (Server)
and CAS module is enabled in site (Client).

Also do you have a authentication server drupal site that I may use to see if my client is configured properly

That way we can figure out with which part of the module I have my problem right now like is it site (C, module CAS client) or Site (S, module CAS Server).

some more progress but still there is an error

"A new account could not be created for testloginfed. The username is already in use on this site."

where testloginfed is a user in both the sites and when I tried to login via CAS from the client site it took me to server site logged there with the credentials and I am redirected back to client site with the following error:
"A new account could not be created for testloginfed. The username is already in use on this site."

and also seen the sites become slow because I think there is some internal looping to check for the user in mysql database.do you think it is just another looping issue if so is it some thing similar to http://drupal.org/node/1086748

i.e "having some trouble with session initialization in your PHP environment? "

please help me with this.

Wonderful module
no doubt it worked
but now I have 2 more issues to be solved

ONE-> how can I get my users in the client site have a CAS username similar to their username so that it becomes easy for them to login.

TWO -> Single sign out issue I have found this patch metzlerd at this issue http://drupal.org/node/1043640

http://drupal.org/files/issues/1043640-cas7_0.patch
just wanted to know where is it applied it says on cas.module where in cas server enabled site or cas module enabled site (I know this que is silly but a little confused)
and also u mentioned it to be applicable to 7.1 is it for recom versions or dev version?

Hi bfroehle
Thanks for the reply. I have just installed the 7x-1.2 version and it didn't worked instead it has an additional issue when I was using 7x-1.1 if I logged out it main site it worked and logged me out from the other sites too but it was not doing the same when I was trying to log out in a client site. Where as in 7x1.2 it became more of an individual log out totally ie even if iam logged out in main site it doesnt logs me out from client sites instead I have to log out manually from all the client sites.I cleared the caches and tried it again but it didnt change. I have also read thru the readme file but it seems that both versions have similar settings. I still wonder if I am missing anything.

Hi metzlerd
Thanks for the reply but I am wondering If I can use the dev version on a site which has to be published and go into production.Is it stable to use the dev version on the production site.

Hi metzlerd

error PDOException: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'valid' in 'field list': SELECT service, ticket, valid FROM {cas_server_tickets} WHERE uid= :uid; Array ( [:uid] => 1 ) in cas_server_logout_clients() (line 254 of /var/www/drupal-sites/drupal7fed/sites/all/modules/cas/cas_server.module).

This error comes up when I used 7.1x DEV version of drupal cas module for cas server (drupal site server) is it the same issue you were talking about?

Just ran the update.php and resulted in this exception.

cas_server module
Update #7000

Failed: DatabaseSchemaObjectExistsException: Table cas_server_tickets already exists. in DatabaseSchema->createTable() (line 657 of /var/www/drupal-sites/drupal7fed/includes/database/schema.inc).

Sorry for the trouble but the module was not uninstalled properly.Now it works fine.

Issues with single sign out

I have set up the cas module in two sites(client a and client b) and CAS server on another site(server site).
When I tried to single sign out on site 'client a' I was logged out of the 'client a' and main site (server site) but I was not logged out of site client b.Now when I try to logout from site client b using CASLOGOUT Iogout I get this following notice and warning.

Notice: Undefined property: stdClass::$name in cas_server_logout() (line 233 of /var/www/drupal-sites/drupal7organic/sites/all/modules/cas/cas_server.module).
Warning: session_destroy(): Trying to destroy uninitialized session in cas_server_logout() (line 238 of /var/www/drupal-sites/drupal7organic/sites/all/modules/cas/cas_server.module).

from the above warning it is clear that the main site(server site) cas session is already terminated due to the first CAS logout I was wondering how to make the other client sites to log the user out once he is logged out of main site.
Please help me in this regard any pointers are appreciated.

Hi David

Thanks for the immediate reply.

oh oops sorry
yeah sure both the clients are on 7.X-1.2
and the server is on 7.x-1.x-dev

as I said the CAS sign out happens in the client site where you clicked the button (Lets say client A ) now I am logged out of server site and client A(same user in all three sites client A client B and server site) but when I go to client B I see that I am still logged in and when again I do a CAS logout in client B I get the warning and notice

Notice: Undefined property: stdClass::$name in cas_server_logout() (line 233 of /var/www/drupal-sites/drupal7organic/sites/all/modules/cas/cas_server.module).
Warning: session_destroy(): Trying to destroy uninitialized session in cas_server_logout() (line 238 of /var/www/drupal-sites/drupal7organic/sites/all/modules/cas/cas_server.module)

Upto my knowledge I think since the first CAS logout actually destroys the CAS session with main site it is giving a warning when I am trying to do it with the client B site but then how to achieve CAS single sign out then?
is there any thing I am missing here I have enabled CAS login and CAS logout menu links in navigation for both the client sites(client A client B).Am I suppose to set up some thing in the CAS server site too?

Hi Bfreohle

Yes even if I go to https://your_cas_server/cas/logout
as an un authenticated user I get the same notice and warning.

Notice: Undefined property: stdClass::$name in cas_server_logout() (line 233 of /var/www/drupal-s1ites/drupal7organic/sites/all/modules/cas/cas_server.module).
Warning: session_destroy(): Trying to destroy uninitialized session in cas_server_logout() (line 238 of /var/www/drupal-sites/drupal7organic/sites/all/modules/cas/cas_server.module).

Hey I am cheking back to see if the single sign out issue was dealt with I think I can help in this scenario.
I also have few questions about how to add already existing users once the CAS is installed is it possible if so how?