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// Copyright (C) Parity Technologies (UK) Ltd.
// This file is part of Polkadot.
// Polkadot is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Polkadot is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Polkadot. If not, see <http://www.gnu.org/licenses/>.
//! Custom origins for governance interventions.
pub use pallet_custom_origins::*;
#[frame_support::pallet]
pub mod pallet_custom_origins {
use crate::{Balance, CENTS, GRAND};
use frame_support::pallet_prelude::*;
#[pallet::config]
pub trait Config: frame_system::Config {}
#[pallet::pallet]
pub struct Pallet<T>(_);
#[derive(PartialEq, Eq, Clone, MaxEncodedLen, Encode, Decode, TypeInfo, RuntimeDebug)]
#[pallet::origin]
pub enum Origin {
/// Origin for cancelling slashes.
StakingAdmin,
/// Origin for spending (any amount of) funds.
Treasurer,
/// Origin for managing the composition of the fellowship.
FellowshipAdmin,
/// Origin for managing the registrar.
GeneralAdmin,
/// Origin for starting auctions.
AuctionAdmin,
/// Origin able to force slot leases.
LeaseAdmin,
/// Origin able to cancel referenda.
ReferendumCanceller,
/// Origin able to kill referenda.
ReferendumKiller,
/// Origin able to spend up to 1 KSM from the treasury at once.
SmallTipper,
/// Origin able to spend up to 5 KSM from the treasury at once.
BigTipper,
/// Origin able to spend up to 50 KSM from the treasury at once.
SmallSpender,
/// Origin able to spend up to 500 KSM from the treasury at once.
MediumSpender,
/// Origin able to spend up to 5,000 KSM from the treasury at once.
BigSpender,
/// Origin able to dispatch a whitelisted call.
WhitelistedCaller,
/// Origin commanded by any members of the Polkadot Fellowship (no Dan grade needed).
FellowshipInitiates,
/// Origin commanded by Polkadot Fellows (3rd Dan fellows or greater).
Fellows,
/// Origin commanded by Polkadot Experts (5th Dan fellows or greater).
FellowshipExperts,
/// Origin commanded by Polkadot Masters (7th Dan fellows of greater).
FellowshipMasters,
/// Origin commanded by rank 1 of the Polkadot Fellowship and with a success of 1.
Fellowship1Dan,
/// Origin commanded by rank 2 of the Polkadot Fellowship and with a success of 2.
Fellowship2Dan,
/// Origin commanded by rank 3 of the Polkadot Fellowship and with a success of 3.
Fellowship3Dan,
/// Origin commanded by rank 4 of the Polkadot Fellowship and with a success of 4.
Fellowship4Dan,
/// Origin commanded by rank 5 of the Polkadot Fellowship and with a success of 5.
Fellowship5Dan,
/// Origin commanded by rank 6 of the Polkadot Fellowship and with a success of 6.
Fellowship6Dan,
/// Origin commanded by rank 7 of the Polkadot Fellowship and with a success of 7.
Fellowship7Dan,
/// Origin commanded by rank 8 of the Polkadot Fellowship and with a success of 8.
Fellowship8Dan,
/// Origin commanded by rank 9 of the Polkadot Fellowship and with a success of 9.
Fellowship9Dan,
}
macro_rules! decl_unit_ensures {
( $name:ident: $success_type:ty = $success:expr ) => {
pub struct $name;
impl<O: Into<Result<Origin, O>> + From<Origin>>
EnsureOrigin<O> for $name
{
type Success = $success_type;
fn try_origin(o: O) -> Result<Self::Success, O> {
o.into().and_then(|o| match o {
Origin::$name => Ok($success),
r => Err(O::from(r)),
})
}
#[cfg(feature = "runtime-benchmarks")]
fn try_successful_origin() -> Result<O, ()> {
Ok(O::from(Origin::$name))
}
}
};
( $name:ident ) => { decl_unit_ensures! { $name : () = () } };
( $name:ident: $success_type:ty = $success:expr, $( $rest:tt )* ) => {
decl_unit_ensures! { $name: $success_type = $success }
decl_unit_ensures! { $( $rest )* }
};
( $name:ident, $( $rest:tt )* ) => {
decl_unit_ensures! { $name }
decl_unit_ensures! { $( $rest )* }
};
() => {}
}
decl_unit_ensures!(
StakingAdmin,
Treasurer,
FellowshipAdmin,
GeneralAdmin,
AuctionAdmin,
LeaseAdmin,
ReferendumCanceller,
ReferendumKiller,
WhitelistedCaller,
FellowshipInitiates: u16 = 0,
Fellows: u16 = 3,
FellowshipExperts: u16 = 5,
FellowshipMasters: u16 = 7,
);
macro_rules! decl_ensure {
(
$vis:vis type $name:ident: EnsureOrigin<Success = $success_type:ty> {
$( $item:ident = $success:expr, )*
}
) => {
$vis struct $name;
impl<O: Into<Result<Origin, O>> + From<Origin>>
EnsureOrigin<O> for $name
{
type Success = $success_type;
fn try_origin(o: O) -> Result<Self::Success, O> {
o.into().and_then(|o| match o {
$(
Origin::$item => Ok($success),
)*
r => Err(O::from(r)),
})
}
#[cfg(feature = "runtime-benchmarks")]
fn try_successful_origin() -> Result<O, ()> {
// By convention the more privileged origins go later, so for greatest chance
// of success, we want the last one.
let _result: Result<O, ()> = Err(());
$(
let _result: Result<O, ()> = Ok(O::from(Origin::$item));
)*
_result
}
}
}
}
decl_ensure! {
pub type Spender: EnsureOrigin<Success = Balance> {
SmallTipper = 250 * 3 * CENTS,
BigTipper = 1 * GRAND,
SmallSpender = 10 * GRAND,
MediumSpender = 100 * GRAND,
BigSpender = 1_000 * GRAND,
Treasurer = 10_000 * GRAND,
}
}
decl_ensure! {
pub type EnsureFellowship: EnsureOrigin<Success = u16> {
Fellowship1Dan = 1,
Fellowship2Dan = 2,
Fellowship3Dan = 3,
Fellowship4Dan = 4,
Fellowship5Dan = 5,
Fellowship6Dan = 6,
Fellowship7Dan = 7,
Fellowship8Dan = 8,
Fellowship9Dan = 9,
}
}
}