Hi Martin,
I am sorry you did not get any responses on the list, the reason for it is most probably the lack of our experience with Shibboleth, which seemed to be the main cause of the issues you were facing.
To answer your last question: the `display_as` is the path to put on the proxy allow list because that is the url on which is UCSC going to request the datasets. The method serving them is defined in https://github.com/galaxyproject/galaxy/blob/release_19.01/lib/galaxy/webapp... and is being called from https://github.com/galaxyproject/galaxy/blob/release_19.01/lib/galaxy/web/fr... .
Regards,
Martin
On Fri, Nov 2, 2018 at 7:04 PM Martin Demko 325073@mail.muni.cz wrote:
Dear list,
I have been trying to manage an access to UCSC genome browser from our Galaxy instance which uses Nginx as a proxy with external authentication via Shibboleth and IdP service.
Not even the configuration of nginx+shibboleth was quite complicated to achieve (but I succeeded after a week or so) but now during a testing phase, we have found out that a cooperation with external UCSC servers is forbidden due to our auth. configuration.
I have found a way how to do that but only for Apache ( https://docs.galaxyproject.org/en/master/admin/special_topics/apache.html#di...) so I tried to do something similar in Nginx but only with IP addresses as Nginx doesn't support using of named domains and defined a location:
location /display_as { satisfy any; deny all; allow 128.114.119.131; allow 128.114.119.132; allow 128.114.119.133; allow 128.114.119.134; allow 128.114.119.135; allow 128.114.119.136; }
Used IP addresses should be the right ones for UCSC servers according to few sources such as ( https://genome.soe.ucsc.narkive.com/sll2JSk2/ucsc-ip-address):
hgw1.cse.ucsc.edu hgw2.cse.ucsc.edu hgw3.cse.ucsc.edu hgw4.cse.ucsc.edu hgw5.cse.ucsc.edu hgw6.cse.ucsc.edu
I tried to change the location also to "/display_application" but didn't help (actually, I don't know why in the documentation there is used as the location that "/display_as" as I have never encountered such location in Galaxy which is my first question). In galaxy.ini I set:
display_servers = hgw1.cse.ucsc.edu,hgw2.cse.ucsc.edu,hgw3.cse.ucsc.edu, hgw4.cse.ucsc.edu,hgw5.cse.ucsc.edu,hgw6.cse.ucsc.edu,hgw7.cse.ucsc.edu, hgw8.cse.ucsc.edu,lowepub.cse.ucsc.edu ,128.114.119.131,128.114.119.132,128.114.119.133,128.114.119.134,128.114.119.135,128.114.119.136
Just for case I used both, the domains and also IP addresses. Also I have tried to use only the domains or only the addresses but nothing helped.
Then I found out after reading of the following ( https://www.switch.ch/aai/guides/sp/access-rules/) that the main obstacle should be actually shibboleth so I defined in /etc/shibboleth/shibboleth2.xml an unrestricted path:
<RequestMapper type="XML"> <RequestMap> <Host name="our.galaxy.something" authType="shibboleth" requireSession="true" redirectToSSL="443" > <Path name="display_application" requireSession="false" redirectToSSL="443" /> <!--Path name="display_as" authType="shibboleth" requireSession="false" redirectToSSL="443" /--> </Host> </RequestMap> </RequestMapper>
Again, I have tried to use both locations "display_as" and "display_application", but it haven't solved my problem entirely. I moved forward I suppose because now the requests should be going around the authentication but UCSC stil warns me that:
Expected 200 https://our.galaxy.something/display_application/e1304269a2f56a52/ucsc_bigwi...: 403 Forbidden
Before that it was a different message containing the address of our idp server so I believe I'am on the right way here. The presence of attribute 'authType="shibboleth"' seams to be useless as 'requireSession="false"' is used.
Then I tried to teach Nginx to use also the domain names with the using of 3rd party nginx-http-rdns module from ( https://github.com/flant/nginx-http-rdns), so my nginx.conf looked like:
....only the part of nginx.conf.... ############## Shibboleth authentication conf #################
# FastCGI authorizer for Shibboleth Auth Request module location = /shibauthorizer { internal; include fastcgi_params; fastcgi_pass unix:/var/run/shibboleth/shibauthorizer.sock; }
# FastCGI responder for SSO location /Shibboleth.sso { include fastcgi_params; fastcgi_pass unix:/var/run/shibboleth/shibresponder.sock; }
############### Entry point for Galaxy ############### # Location secured by Shibboleth location / { shib_request /shibauthorizer; more_clear_input_headers 'Variable-*' 'Shib-*' 'Remote-User' 'REMOTE_USER' 'Auth-Type' 'AUTH_TYPE' 'GX_SECRET'; include uwsgi_params; shib_request_set $shib_id $upstream_http_variable_eppn; uwsgi_param HTTP_REMOTE_USER $shib_id; uwsgi_param HTTP_GX_SECRET $our_secret; uwsgi_pass 127.0.0.1:4001;
# resolver $correct_resolver_acc_to_resolv.conf; # rdns on; # satisfy any; # rdns_allow genome.ucsc.edu; # rdns_allow hgw1.cse.ucsc.edu; # rdns_allow hgw2.cse.ucsc.edu; # rdns_allow hgw3.cse.ucsc.edu; # rdns_allow hgw4.cse.ucsc.edu; # rdns_allow hgw5.cse.ucsc.edu; # rdns_allow hgw6.cse.ucsc.edu; # rdns_allow hgw7.cse.ucsc.edu; # rdns_allow hgw8.cse.ucsc.edu; }
# location /display_as { # resolver $correct_resolver_acc_to_resolv.conf; # rdns on; # satisfy any; # rdns_allow genome.ucsc.edu; # rdns_allow hgw1.cse.ucsc.edu; # rdns_allow hgw2.cse.ucsc.edu; # rdns_allow hgw3.cse.ucsc.edu; # rdns_allow hgw4.cse.ucsc.edu; # rdns_allow hgw5.cse.ucsc.edu; # rdns_allow hgw6.cse.ucsc.edu; # rdns_allow hgw7.cse.ucsc.edu; # rdns_allow hgw8.cse.ucsc.edu; # }
# location /display_application { # resolver $correct_resolver_acc_to_resolv.conf; # rdns on; # satisfy any; # rdns_allow genome.ucsc.edu; # rdns_allow hgw1.cse.ucsc.edu; # rdns_allow hgw2.cse.ucsc.edu; # rdns_allow hgw3.cse.ucsc.edu; # rdns_allow hgw4.cse.ucsc.edu; # rdns_allow hgw5.cse.ucsc.edu; # rdns_allow hgw6.cse.ucsc.edu; # rdns_allow hgw7.cse.ucsc.edu; # rdns_allow hgw8.cse.ucsc.edu; # } ....END of the part of nginx.conf....
Everything commented out, I tried to use together or one at the time but nothing helped. But there are differences:
- when uncommented only location /display_application - I will get just a
blank page with: 404 Not Found.
when uncommented only location /display_as - nothing changes.
when uncommented part inside the location "/" - I will get a new
message: Error unexpected end of input reading http header on https://our.galaxy.something/display_application/e1304269a2f56a52/ucsc_bigwi...
And now I'm out of ideas. I would really appreciate any help.
PS: I stil don't get why in the documentation for Apache configuration ( https://docs.galaxyproject.org/en/master/admin/special_topics/apache.html#di... ) there is used the /display_as location. Can somebody explain, please?
Thank you in advance, Martin Demko ___________________________________________________________ Please keep all replies on the list by using "reply all" in your mail client. To manage your subscriptions to this and other Galaxy lists, please use the interface at: https://lists.galaxyproject.org/
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