Installing and configuring the consent module
The consent module is implemented as an Authentication Processing Filter. That means it can be configured in the global config.php file or the SP remote or IdP hosted metadata.
It is recommended to run the consent module at the IdP, and configure the filter to run after all attribute mangling filters is completed, to show the user the exact same attributes that are sent to the SP.
1 Configure the user ID
In order to generate the privacy preserving hashes in the consent module, you need to name one attribute that always is available and that is unique to all users. An example of such an attribute is eduPersonPrincipalName.
In your saml20-idp-hosted.php add the name of the user ID attribute:
'userid.attribute' => 'uid',
If the attribute defined above is not available for a user, an error message will be shown, and the user will not be allowed through the filter. So make sure that you select an attribute that is available to all users.
2 The first step: consent module with cookie as storage
We reccomend to try to enable the consent module with cookie as a storage, before setting up a database.
To enable the consent module, touch an enable file, in the consent module:
touch modules/consent/enable
Then edit config.php and look for the authproc.idp configuration. Uncomment the followig filter configuration:
90 => array(
'class' => 'consent:Consent',
'store' => 'consent:Cookie',
'focus' => 'yes',
'checked' => TRUE
),
Then login through an SP and make sure that you are asked for consent.
3 Setting up a database
Here is the initialization SQL script for PostgreSQL:
CREATE TABLE consent (
consent_date TIMESTAMP NOT NULL,
usage_date TIMESTAMP NOT NULL,
hashed_user_id VARCHAR(80) NOT NULL,
service_id VARCHAR(255) NOT NULL,
attribute VARCHAR(80) NOT NULL,
UNIQUE (hashed_user_id, service_id)
);
4 Configuring the processing filter
Example config using PostgreSQL database:
90 => array(
'class' => 'consent:Consent',
'store' => array(
'consent:Database',
'dsn' => 'pgsql:host=sql.uninett.no;dbname=andreas_consent',
'username' => 'simplesaml',
'password' => 'sdfsdf',
),
'focus' => 'yes',
'checked' => TRUE
),