git.delta.rocks / unique-network / refs/commits / 25b276d53c18

1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617use frame_support::{18	{match_types, parameter_types, weights::Weight},19	pallet_prelude::Get,20	traits::{Contains, Everything},21};22use orml_traits::{location::AbsoluteReserveProvider, parameter_type_with_key};23use sp_runtime::traits::{AccountIdConversion, Convert};24use sp_std::{vec, vec::Vec};25use xcm::{26	latest::Xcm,27	v1::{BodyId, Junction::*, Junctions::*, MultiLocation, NetworkId},28};29use xcm_builder::{30	AllowKnownQueryResponses, AllowSubscriptionsFrom, AllowTopLevelPaidExecutionFrom,31	AllowUnpaidExecutionFrom, FixedWeightBounds, LocationInverter, TakeWeightCredit,32};33use xcm_executor::XcmExecutor;3435use up_common::types::{AccountId, Balance};36use pallet_foreing_assets::{AssetIds, CurrencyId, NativeCurrency};37use crate::{Call, Event, ParachainInfo, PolkadotXcm, Runtime};38use crate::runtime_common::config::substrate::{TreasuryModuleId, MaxLocks, MaxReserves};39use crate::runtime_common::config::pallets::TreasuryAccountId;40use crate::runtime_common::config::xcm::*;41use xcm::opaque::latest::prelude::{DepositReserveAsset, TransferReserveAsset};4243// Signed version of balance44pub type Amount = i128;4546match_types! {47	pub type ParentOrParentsExecutivePlurality: impl Contains<MultiLocation> = {48		MultiLocation { parents: 1, interior: Here } |49		MultiLocation { parents: 1, interior: X1(Plurality { id: BodyId::Executive, .. }) }50	};51	pub type ParentOrSiblings: impl Contains<MultiLocation> = {52		MultiLocation { parents: 1, interior: Here } |53		MultiLocation { parents: 1, interior: X1(_) }54	};55}5657pub type Barrier = DenyThenTry<58	(DenyTransact, DenyExchangeWithUnknownLocation),59	(60		TakeWeightCredit,61		AllowTopLevelPaidExecutionFrom<Everything>,62		// Parent and its exec plurality get free execution63		AllowUnpaidExecutionFrom<ParentOrParentsExecutivePlurality>,64		// Expected responses are OK.65		AllowKnownQueryResponses<PolkadotXcm>,66		// Subscriptions for version tracking are OK.67		AllowSubscriptionsFrom<ParentOrSiblings>,68	),69>;7071pub fn get_allowed_locations() -> Vec<MultiLocation> {72	vec![73		// Self location74		MultiLocation {75			parents: 0,76			interior: Here,77		},78		// Parent location79		MultiLocation {80			parents: 1,81			interior: Here,82		},83		// Karura/Acala location84		MultiLocation {85			parents: 1,86			interior: X1(Parachain(2000)),87		},88		// Moonbeam location89		MultiLocation {90			parents: 1,91			interior: X1(Parachain(2004)),92		},93		// Self parachain address94		MultiLocation {95			parents: 1,96			interior: X1(Parachain(ParachainInfo::get().into())),97		},98	]99}100101// Allow xcm exchange only with locations in list102pub struct DenyExchangeWithUnknownLocation;103impl TryPass for DenyExchangeWithUnknownLocation {104	fn try_pass<Call>(origin: &MultiLocation, message: &mut Xcm<Call>) -> Result<(), ()> {105		// Check if deposit or transfer belongs to allowed parachains106		let mut allowed = get_allowed_locations().contains(origin);107108		message.0.iter().for_each(|inst| match inst {109			DepositReserveAsset { dest: dst, .. } => {110				allowed |= get_allowed_locations().contains(dst);111			}112			TransferReserveAsset { dest: dst, .. } => {113				allowed |= get_allowed_locations().contains(dst);114			}115			_ => {}116		});117118		if allowed {119			return Ok(());120		}121122		log::warn!(123			target: "xcm::barrier",124			"Unexpected deposit or transfer location"125		);126		// Deny127		Err(())128	}129}130131impl orml_tokens::Config for Runtime {132	type Event = Event;133	type Balance = Balance;134	type Amount = Amount;135	type CurrencyId = CurrencyId;136	type WeightInfo = ();137	type ExistentialDeposits = ExistentialDeposits;138	type OnDust = orml_tokens::TransferDust<Runtime, TreasuryAccountId>;139	type MaxLocks = MaxLocks;140	type MaxReserves = MaxReserves;141	// TODO: Add all module accounts142	type DustRemovalWhitelist = DustRemovalWhitelist;143	/// The id type for named reserves.144	type ReserveIdentifier = ();145	type OnNewTokenAccount = ();146	type OnKilledTokenAccount = ();147}148149impl orml_xtokens::Config for Runtime {150	type Event = Event;151	type Balance = Balance;152	type CurrencyId = CurrencyId;153	type CurrencyIdConvert = CurrencyIdConvert;154	type AccountIdToMultiLocation = AccountIdToMultiLocation;155	type SelfLocation = SelfLocation;156	type XcmExecutor = XcmExecutor<XcmConfig<Self>>;157	type Weigher = FixedWeightBounds<UnitWeightCost, Call, MaxInstructions>;158	type BaseXcmWeight = BaseXcmWeight;159	type LocationInverter = LocationInverter<Ancestry>;160	type MaxAssetsForTransfer = MaxAssetsForTransfer;161	type MinXcmFee = ParachainMinFee;162	type MultiLocationsFilter = Everything;163	type ReserveProvider = AbsoluteReserveProvider;164}165166parameter_type_with_key! {167	pub ExistentialDeposits: |currency_id: CurrencyId| -> Balance {168		match currency_id {169			CurrencyId::NativeAssetId(symbol) => match symbol {170				NativeCurrency::Here => 0,171				NativeCurrency::Parent=> 0,172			},173			_ => 100_000174		}175	};176}177178pub struct DustRemovalWhitelist;179impl Contains<AccountId> for DustRemovalWhitelist {180	fn contains(a: &AccountId) -> bool {181		get_all_module_accounts().contains(a)182	}183}184185pub struct CurrencyIdConvert;186impl Convert<AssetIds, Option<MultiLocation>> for CurrencyIdConvert {187	fn convert(id: AssetIds) -> Option<MultiLocation> {188		match id {189			AssetIds::NativeAssetId(NativeCurrency::Here) => Some(MultiLocation::new(190				1,191				X1(Parachain(ParachainInfo::get().into())),192			)),193			_ => None,194		}195	}196}197198parameter_types! {199	pub const BaseXcmWeight: Weight = 100_000_000; // TODO: recheck this200	pub const MaxAssetsForTransfer: usize = 2;201202	pub Ancestry: MultiLocation = Parachain(ParachainInfo::parachain_id().into()).into();203	pub SelfLocation: MultiLocation = MultiLocation::new(1, X1(Parachain(ParachainInfo::get().into())));204}205206parameter_type_with_key! {207	pub ParachainMinFee: |_location: MultiLocation| -> Option<u128> {208		Some(100_000_000)209	};210}211212pub fn get_all_module_accounts() -> Vec<AccountId> {213	vec![TreasuryModuleId::get().into_account_truncating()]214}215216pub struct AccountIdToMultiLocation;217impl Convert<AccountId, MultiLocation> for AccountIdToMultiLocation {218	fn convert(account: AccountId) -> MultiLocation {219		X1(AccountId32 {220			network: NetworkId::Any,221			id: account.into(),222		})223		.into()224	}225}