Parental Controls

Devices

By default a device has a unique system user. This is the owner of the device if it is not assigned to a user in the parental controls settings.

A device can be assigned to a user (owner).

Optionally, another user can log in via the dashboard and be the operating user.

The operating user is shown in the dashboard title bar next to the device name.

Users

A user has a dashboard layout (for 1, 2, 3 columns).

User roles

A user has one of the following roles:

• Child
• Parent
• Other

Children have a very minimal dashboard. They have a birthday.

What is the difference between Parent and Other?

All users can have a PIN.

Parents (and Others) can lock a device out of the internet.

User profiles

Each user has an associated profile. (Some profiles are shared, but they are used only for default users.)

A user profile defines restrictions, e.g. max daily usage, blocked domains, etc.

Multiple filter lists can be configured as accessible or inaccessible.

Filter meta-data

For each filter list – built-in or custom – there is a filter meta-data object that references lists stored on disk.

The meta-data objects are associated with users in two ways:

1. In the parental controls settings there are the tabs Web site black/whitelists. These lists are referenced in the UserProfileModule via the (in)accessibleSitesPackages attributes.
2. In the dashboard there are the Block/Allow domains cards. The lists edited there are referenced in the UserModule via the customBlack/WhitelistId attributes.

Database classes

classDiagram
    UiCard <|-- ParentalControlCard
    UserModule --> UserProfileModule: associatedProfileId
    UserModule --> UiCard: dashboardColumnView
    ParentalControlCard --> UserModule: referencingUserId
    Device --> UserModule
    UserProfileModule --> ParentalControlFilterMetaData: (in)accessibleSitesPackages
    UserModule --> ParentalControlFilterMetaData: customBlack/WhitelistId

    class UserModule {
        +int id
        +userRole
    }
    class Device {
        +String id
        +defaultSystemUserId
        +parentalControlUserId
        +parentalControlOperatingUserId
    }
    class ParentalControlFilterMetaData {
        +int id
    }
    class UserProfileModule {
        +int id
    }