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Shibboleth IDP and SP for SPID integration

This project contains three docker images:

  • ldap: an openladap instance used as idp authentication backend
  • idp: is the shibboleth identity provider
  • sp: is the shibboleth servcice provider

The project aims to create a testing environment for the Italian public identity manager, SPID, which is based on SAML 2.0. The spec defines how Service Provider and Identity Provider works and how they must be implemented.

I'm so sorry but the project still lack of documentation

What is and what is not still implemented

TODO

Docker

Building the images

To build the images:

cd ldap && docker build -t giafar/spid-ldap . && cd ..
cd idp && docker build -t giafar/spi-idp . && cd ..
cd sp && docker build -t giafar/spid-sp . && cd ..

From docker hub

To download the images from docker hub

docker pull giafar/spid-ldap
docker pull giafar/spid-idp
docker pull giafar/spid-sp

Running the images

services are related each othe, it is important to start them in the right order with the correct name

docker run -d --rm --name spid-ldap giafar/spid-ldap
docker run -d --rm --name spid-idp --link=spid-ldap:ldap.example.org giafar/spid-idp
docker run -d --rm --name spid-sp --link=spid-idp:idp.example.org giafar/spid-sp

As you can notice no port is exposed and images are linked by fqdn:

  1. ldap.example.org;
  2. idp.example.org;
  3. sp.example.org.

Modify the host file to include required fqnd or run the following script

echo "$(docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' spid-sp) sp.example.org" | sudo tee --append /etc/hosts > /dev/null
echo "$(docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' spid-idp) idp.example.org" | sudo tee --append /etc/hosts > /dev/null
echo "$(docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' spid-ldap) ldap.example.org" | sudo tee --append /etc/hosts > /dev/null

To stop everything

docker container stop spid-sp
docker container stop spid-idp
docker container stop spid-ldap

Playing with the images

Once images are started open your browser and navigate to https://sp.example.org:

  1. Check shibboleth native access control with default entityID;
  2. Check apache control by cookie test. Redirect to SPID provider selector;
  3. Check shibboleth native access control with default entityID and forced SpidL2 authnContextClassRef by request mapper;
  4. Check shibboleth native access control with default entityID, forced SpidL1 authnContextClassRef by request mapper and SPID Attributes Set 2;
  5. Check shibboleth native access control with default entityID, forced SpidL1 authnContextClassRef by request mapper and SPID Attributes Set 3;
  6. Check shibboleth native access control with default entityID, forced SpidL1 authnContextClassRef by request mapper and SPID Attributes Set 4;
  7. Check apache control by cookie test. Redirect to SPID provider selector;
  8. Logout;
  9. Session information;
  10. Metadata.

Check shibboleth native access control with default entityID

The /secure location is protected by shibboleth native configuration and if no session is present then you will be redirected to the identity provider for authentication. Use test as username and password.1 as password to login and return to sp /secure page

Check shibboleth native access control with default entityID, forced SpidL1 authnContextClassRef by request mapper and SPID Attributes Set 2

The /secure-spidl1-attr-2 location is protected by shibboleth native mapper using an applicationId that maps an ApplicationOverride that forces the AttributeConsumerServiceIndex to index 1 ( Set Attributi 2 - ID Cittadini completo): see shibboleth2.xml and sp image docs. Check shibboleth native access control with default entityID, forced SpidL1 authnContextClassRef by request mapper and SPID Attributes Set 3 and Check shibboleth native access control with default entityID, forced SpidL1 authnContextClassRef by request mapper and SPID Attributes Set 4 except that are used Set Attributi 3 - ID Cittadini e Persone giuridiche and Set Attributi 4 - ID Persone giuridiche indexes.

Check apache control by cookie test. Redirect to SPID provider selector

The /secure-by/apache location is protected by apache mod rewrite and checks that the _shib.* cookie is present in the request. If there is no cookie than you will be redirected to the /login.html page which contains standard SPID authentication buttons. To test the IDP use the Aruba ID button

Check apache control by cookie test. Redirect to SPID provider selector

The /secure-by-apache locations is protected by apache using an url rewrite rule

RewriteEngine On
RewriteCond %{REQUEST_URI} ^/secure-by-apache/.*
RewriteCond %{HTTP_COOKIE} !^_shib.*$ [NC]
RewriteRule .* /login.html?target=%{REQUEST_URI} [NC,R,L,QSA]

The /login.html page has the standard SPID button, thanks to .it Developers Italia, and a combo to select the authnContextClassRef. Please select the Aruba identity provider which is mapped to idp.example.org

Logout

Once logged in click on the link to logout using the Local logout shibboleth native method

Session Information

Once logged in click on the link to see session information and assertions sent by the idp

Metadata

View SP metadata