mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-07-29 12:35:45 +00:00
Branislav Kontur
be500fc202
## Summary This PR aligns Rococo/Westend bridge with latest Bridges repo development: - https://github.com/paritytech/parity-bridges-common/pull/2727 - https://github.com/paritytech/parity-bridges-common/pull/2728 - https://github.com/paritytech/parity-bridges-common/pull/2729 Part of: https://github.com/paritytech/parity-bridges-common/issues/2452
97 lines
3.4 KiB
Rust
97 lines
3.4 KiB
Rust
// Copyright 2019-2021 Parity Technologies (UK) Ltd.
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// This file is part of Parity Bridges Common.
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// Parity Bridges Common is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity Bridges Common is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity Bridges Common. If not, see <http://www.gnu.org/licenses/>.
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//! Module that adds XCM support to bridge pallets.
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#![warn(missing_docs)]
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#![cfg_attr(not(feature = "std"), no_std)]
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use bridge_runtime_common::messages_xcm_extension::XcmBlobHauler;
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use pallet_bridge_messages::Config as BridgeMessagesConfig;
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use xcm::prelude::*;
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pub use exporter::PalletAsHaulBlobExporter;
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pub use pallet::*;
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mod exporter;
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mod mock;
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/// The target that will be used when publishing logs related to this pallet.
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pub const LOG_TARGET: &str = "runtime::bridge-xcm";
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#[frame_support::pallet]
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pub mod pallet {
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use super::*;
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use bridge_runtime_common::messages_xcm_extension::SenderAndLane;
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use frame_support::pallet_prelude::*;
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#[pallet::config]
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#[pallet::disable_frame_system_supertrait_check]
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pub trait Config<I: 'static = ()>:
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BridgeMessagesConfig<Self::BridgeMessagesPalletInstance>
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{
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/// Runtime's universal location.
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type UniversalLocation: Get<InteriorMultiLocation>;
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// TODO: https://github.com/paritytech/parity-bridges-common/issues/1666 remove `ChainId` and
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// replace it with the `NetworkId` - then we'll be able to use
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// `T as pallet_bridge_messages::Config<T::BridgeMessagesPalletInstance>::BridgedChain::NetworkId`
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/// Bridged network id.
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#[pallet::constant]
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type BridgedNetworkId: Get<NetworkId>;
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/// Associated messages pallet instance that bridges us with the
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/// `BridgedNetworkId` consensus.
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type BridgeMessagesPalletInstance: 'static;
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/// Price of single message export to the bridged consensus (`Self::BridgedNetworkId`).
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type MessageExportPrice: Get<MultiAssets>;
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/// Get point-to-point links with bridged consensus (`Self::BridgedNetworkId`).
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/// (this will be replaced with dynamic on-chain bridges - `Bridges V2`)
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type Lanes: Get<sp_std::vec::Vec<(SenderAndLane, (NetworkId, InteriorMultiLocation))>>;
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/// Support for point-to-point links
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/// (this will be replaced with dynamic on-chain bridges - `Bridges V2`)
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type LanesSupport: XcmBlobHauler;
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}
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#[pallet::pallet]
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pub struct Pallet<T, I = ()>(PhantomData<(T, I)>);
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impl<T: Config<I>, I: 'static> Pallet<T, I> {
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/// Returns dedicated/configured lane identifier.
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pub(crate) fn lane_for(
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source: &InteriorMultiLocation,
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dest: (&NetworkId, &InteriorMultiLocation),
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) -> Option<SenderAndLane> {
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let source = source.relative_to(&T::UniversalLocation::get());
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// Check that we have configured a point-to-point lane for 'source' and `dest`.
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T::Lanes::get()
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.into_iter()
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.find_map(|(lane_source, (lane_dest_network, lane_dest))| {
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if lane_source.location == source &&
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&lane_dest_network == dest.0 &&
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&T::BridgedNetworkId::get() == dest.0 &&
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&lane_dest == dest.1
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{
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Some(lane_source)
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} else {
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None
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}
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})
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}
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}
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}
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