OpenID Connect
As of version 4.1.21.1 NATS can be used as an OpenID Connect server. This is another option for member authentication. In order to utilize this feature, you will need to use an OpenID Connect client. When developing this feature, we used the mod_auth_openidc apache module. Here is an example implementation. Unlike the standard OpenID Connect server implemantaion, consent for the surfer to provide protected details (like username and email) to the client (members area) is implied.
Setup
- Go to the NATS config admin -> surfers and scroll down to the 'Member OpenID Connect Server' section
- Enable the ENABLE_MEMBER_OPENID config option
- Provide a list of all ips defined on your member area server(s) by entering it into the MEMBER_OPENID_SECURE_IPS field
- Enter the password that your member area(s) is(are) going to use for the token endpoint authentication into the MEMBER_OPENID_CLIENT_SECRET field
- Decide what domain (and protocol) you will use for the authorization (login) page as well as the token and the userinfo endpoints
- Determine what claims you want returned
- Setup an OpenID Connect client in your members area(s)
Authorization Domain
You have a couple options when deciding what domain (and protocol) will be used for the authorization (login) page as well as the token and the userinfo endpoints.
- You can use the main NATS url. In this case, the value of the PROJECT_HOSTNAME config setting will be used for the domain and the protocol will be determined by the PROJECT_HOSTNAME_DISPLAY_HTTPS config setting.
- You can provide a single domain (and protocol) to use via the MEMBER_OPENID_DOMAIN config setting. This is very similar to the option above, except that it will be different than the main NATS domain.
- You can use each site's link domain. To do this, you will need to enabled the MEMBER_OPENID_DYNAMIC_DOMAIN config option.
- You can make a custom authorization domain for each site. This is very similar to the option above, except that it will be different than the domain of the join page (login.yoursite.com instead of join.yoursite.com). You will need to setup each of these domains in a similar way that you setup your link domains.
Claims
The id_token that is generated by the token endpoint contains only the sub claim. The value is the NATS member id for the successfully authenticated member. The userinfo endpoint contains a variety of other claims. NATS OpenID Connect server will return all claims that you enabled. Here is the breakdown of claims that the NATS OpenID Connect server can return.
- Default
- sub (NATS memberid)
- username
- if you enabled the MEMBER_OPENID_BASE_INFO configuration option, you will also get:
- firstname
- lastname
- trial (1 if in trial, 0 otherwise)
- status (1 if active, 2 if expired)
- siteid
- if you enable the MEMBER_OPENID_JOIN_EXPIRE_INFO configuration option, you will also get a json encoded array named join_expire with the following fields (all UNIX timestamps):
- joined
- expired
- expires
- nats_expires
- biller_expires
- if you enable the MEMBER_OPENID_IDENTIFIER_INFO configuration option, you will also get a json encoded array named identifier with the following fields:
- identid (internal NATS identifier id)
- loginid (id of the affiliate)
- campaignid
- programid
- optoinid
- siteid
- tourid
- countryid
- adtoolid
- billerid
- subid1
- subid2
- promotionalid