Trait Whitelist 

pub trait Whitelist {
    type Address: AsRef<[u8]> + Zero;

    // Required methods
    fn user_is_whitelisted(
        &self,
        service_id: &Bytes32,
        user: &Self::Address,
    ) -> bool;
    fn extend_whitelist_expiration(
        &mut self,
        service_id: &Bytes32,
        user: &Self::Address,
        expiration_timestamp: u64,
    );
    fn set_whitelist_expiration(
        &mut self,
        service_id: &Bytes32,
        user: &Self::Address,
        expiration_timestamp: u64,
    );
    fn set_indefinite_whitelist_status(
        &mut self,
        service_id: &Bytes32,
        user: &Self::Address,
        status: bool,
    ) -> U256;
    fn revoke_indefinite_whitelist_status(
        &mut self,
        service_id: &Bytes32,
        user: &Self::Address,
        setter: &Self::Address,
    ) -> (bool, U256);
}

Trait that implements temporary and permanent whitelists for multiple services identified with a hash

This trait implements two kinds of whitelisting: (1) Temporary, ends when the expiration timestamp is in the past (2) Indefinite, ends when the indefinite whitelist count is zero Multiple senders can indefinitely whitelist/unwhitelist independently. The user will be considered whitelisted as long as there is at least one active indefinite whitelisting.

The interface of this contract is not implemented. It should be inherited and its functions should be exposed with a sort of an authorization scheme.

Required Associated Types

type Address: AsRef<[u8]> + Zero

The address type for the chain

Required Methods

fn user_is_whitelisted( &self, service_id: &Bytes32, user: &Self::Address, ) -> bool

Returns if the user is whitelised to use the service

Argument

• service_id Service ID
• user User address

fn extend_whitelist_expiration( &mut self, service_id: &Bytes32, user: &Self::Address, expiration_timestamp: u64, )

Extends the expiration of the temporary whitelist of the user for the service

Argument

• service_id Service ID
• user User address
• expiration_timestamp Timestamp at which the temporary whitelist will expire

fn set_whitelist_expiration( &mut self, service_id: &Bytes32, user: &Self::Address, expiration_timestamp: u64, )

Sets the expiration of the temporary whitelist of user to be able to use the service with serviceId if the sender has the whitelist expiration setter role

Argument

• service_id Service ID
• user User address
• expiration_timestamp Timestamp at which the temporary whitelist will expire

fn set_indefinite_whitelist_status( &mut self, service_id: &Bytes32, user: &Self::Address, status: bool, ) -> U256

Sets the indefinite whitelist status of user to be able to use the service with serviceId if the sender has the indefinite whitelister role

Argument

service_id Service ID user User address status Indefinite whitelist status

fn revoke_indefinite_whitelist_status( &mut self, service_id: &Bytes32, user: &Self::Address, setter: &Self::Address, ) -> (bool, U256)

Revokes the indefinite whitelist status granted to the user for the service by a specific account

Argument

service_id Service ID user User address setter Setter of the indefinite whitelist status

Implementors

impl<Address> Whitelist for DummyWhitelist<Address>

where Address: AsRef<[u8]> + Zero + Default + PartialEq,

type Address = Address