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| Viewing file: Select action/file-type: Consent module
==============
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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.
* [Read more about processing filters in simpleSAMLphp](simplesamlphp-authproc)
How to setup the consent module
-------------------------------
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.
Next you need to enable the consent module, touch an `enable` file, in the
consent module:
touch modules/consent/enable
The simplest wayf to setup the consent module is to not use any storage at
all. This means that the user will always be asked to give consent each time
the user logs in.
Example:
90 => array(
'class:Consent',
),
Using storage
-------------
The consent module is shipped with two storage options, Cookie and Database.
### Using cookies as storage ###
In order to use a storage backend, you need to set the `store` option. To use
cookies as storage you need to set the `store` option to `consent:Cookie`.
Example:
90 => array(
'class' => 'consent:Consent',
'store' => 'consent:Cookie',
),
### Using a database as storage ###
In order to use tha database backend storage, you first need to setup the
database.
Here is the initialization SQL script:
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)
);
The `consent:Database` backend storage has the following options
`class`
: Must be set to `consent:Database`.
`dsn`
: Data Source Name must comply to the syntax for the PHP PDO layer.
`username`
: Username for the database user to be used for the connectio.
`password`
: Password for the database user used for the connection.
`table`
: Name of the table used for storing the consents. This option is optional
and defaults to `consent`.
`timeout`
: The number of seconds to wait for a connection to the database server. This option is optional. If unset, it uses the default from the database-driver.
Example config using PostgreSQL database:
90 => array(
'class' => 'consent:Consent',
'store' => array(
'consent:Database',
'dsn' => 'pgsql:host=sql.example.org;dbname=consent',
'username' => 'simplesaml',
'password' => 'sdfsdf',
),
),
Example config using MySQL database:
90 => array(
'class' => 'consent:Consent',
'store' => array(
'consent:Database',
'dsn' => 'mysql:host=db.example.org;dbname=simplesaml',
'username' => 'simplesaml',
'password' => 'sdfsdf',
),
),
Options
-------
The following options can be used when configuring the Consent module
`includeValues`
: Boolean value that indicate whether the values of the attributes should be
used in calculating the unique hashes that identifies the consent. If
includeValues is set and the value of an attribute changes, then the
consent becomes invalid. This option is optional and defaults to FALSE.
`checked`
: Boolean value that indicate whether the "Remember" consent checkbox is
checkd by default. This option is optional and defaults to FALSE.
`focus`
: Indicates whether the "Yes" or "No" button is in fucus by default. This
option is optional and can take the value 'yes' or 'no' as strings. If
omitted neither will recive focus.
`store`
: Configuration of the Consent storage backend. The store option is given in
the format <module>:<class> and refers to the class
sspmod_<module>_Consent_Store_<class>. The consent module comes with two
build in storages backends 'consnet:Cookie' and 'consent:Database'. See
seperate section on setting up consent using different storage methods.
This option is optional. If option is not set, then the user is asked to
consent, but the consent is not saved.
`hiddenAttributes`
: Whether the value of the attributes should be hidden. Set to an array of
the attributes that should have it value hidden. Default behaviour is that
all attribute values are shown
`showNoConsentAboutService`
: Whether we will show a link to more information about the service from the
no consent page. Defaults to `TRUE`.
External options
----------------
The following options can/ be set in other places in simpleSAMLphp
`privacypolicy`
: This is an absolute URL for where an user can find a privacy policy for SP.
If set, this will be shown on the consent page. %SPENTITYID% in the URL
will be replaced with the entityID of the service provider.
This option can be set in
[SP-remote metadata](./simplesamlphp-reference-sp-remote) and in
[IdP-hosted metadata](./simplesamlphp-reference-idp-hosted). The entry in
the SP-remote metadata overrides the option in the IdP-hosted metadata.
`consent.disable`
: Disable consent for a set of services. See section `Disabling consent`
`userid.attribute`
: Unique identifier that is released for all users. See section `Configure
the user ID`.
Disabling consent
-----------------
Consent can be disabled either in the IdP metadata or in the SP metadata.
To disable consent for one or more SPs for a given IdP, add the
`consent.disable`-option to the IdP metadata. To disable consent for one or
more IdPs for a given SP, add the `consent.disable`-option to the SP metadata.
### Examples ###
Disable consent for a given IdP:
$metadata['https://idp.example.org/'] = array(
[...],
'consent.disable' => TRUE,
);
Disable consent for some SPs connected to a given IdP:
$metadata['https://idp.example.org/'] = array(
[...],
'consent.disable' => array(
'https://sp1.example.org/',
'https://sp2.example.org/',
),
);
Disable consent for a given SP:
$metadata['https://sp.example.org'] = array(
[...]
'consent.disable' => TRUE,
),
Disable consent for some IdPs for a given SP:
$metadata['https://sp.example.org'] = array(
[...]
'consent.disable' => array(
'https://idp1.example.org/',
'https://idp2.example.org/',
),
),
Attribute presentation
----------------------
It is possible to change the way the attributes are represented in the consent
page. This is done by implementing an attribute array reordering function.
To create this function, you have to create a file named
hook_attributepresentation.php
and place it under
<module_name>/hooks
directory. To be found and called, the function must be named
<module_name>_hook_attributepresentation(&$para).
The parameter $para is an reference to the attribute array. By manipulating
this array you can change the way the attribute are presented to the user on
the consent and status page.
If you want the attributes to be listed in more than one level, you can make
the function add a child_ prefix to the root node attribute name in a recursive
attribute tree.
### Examples ###
These values will be listed as an bullet list
Array (
[objectClass] => Array (
[0] => top
[1] => person
)
)
This array hawe two child array. These will be listed in two separate sub
tables.
Array (
[child_eduPersonOrgUnitDN] => Array (
[0] => Array (
[ou] => Array (
[0] => ET
)
[cn] => Array (
[0] => Eksterne tjenester
)
)
[1] => Array (
[ou] => Array (
[0] => TA
)
[cn] => Array (
[0] => Tjenesteavdeling
)
)
)
)
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