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Integrate Rialto <-> Millau message lanes into Millau/Rialto runtimes (…
…paritytech#386) * millau -> rialto lanes integration * extrace common message-lane integration types into bridge-runtime-common * rialto_messages.rs in Millau runtime * tests * Update bin/rialto/runtime/src/millau_messages.rs Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com> * RELAYER_INTEREST_PERCENT -> RELAYER_FEE_PERCENT * Update bin/runtime-common/src/messages.rs Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com> * estimate_message_dispatch_and_delivery_fee returns Result * Update bin/rialto/runtime/src/millau_messages.rs Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com> * Update bin/rialto/runtime/src/millau_messages.rs Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com> * Update bin/rialto/runtime/src/millau_messages.rs Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com> * fmt * mowed weight formula to primitives Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>
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| // Copyright 2019-2020 Parity Technologies (UK) Ltd. | ||
| // 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 | ||
| // 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. | ||
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| // Parity Bridges Common 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. | ||
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| // You should have received a copy of the GNU General Public License | ||
| // along with Parity Bridges Common. If not, see <http://www.gnu.org/licenses/>. | ||
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| //! Everything required to serve Millau <-> Rialto message lanes. | ||
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| use bridge_runtime_common::messages; | ||
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| use bp_message_lane::{ | ||
| source_chain::TargetHeaderChain, | ||
| target_chain::{ProvedMessages, SourceHeaderChain}, | ||
| InboundLaneData, LaneId, Message, MessageNonce, | ||
| }; | ||
| use bp_runtime::InstanceId; | ||
| use bridge_runtime_common::messages::MessageBridge; | ||
| use frame_support::{ | ||
| weights::{Weight, WeightToFeePolynomial}, | ||
| RuntimeDebug, | ||
| }; | ||
| use sp_trie::StorageProof; | ||
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| /// Message payload for Millau -> Rialto messages. | ||
| pub type ToRialtoMessagePayload = messages::source::FromThisChainMessagePayload<WithRialtoMessageBridge>; | ||
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| /// Message verifier for Millau -> Rialto messages. | ||
| pub type ToRialtoMessageVerifier = messages::source::FromThisChainMessageVerifier<WithRialtoMessageBridge>; | ||
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| /// Message payload for Rialto -> Millau messages. | ||
| pub type FromRialtoMessagePayload = messages::target::FromBridgedChainMessagePayload<WithRialtoMessageBridge>; | ||
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| /// Call-dispatch based message dispatch for Rialto -> Millau messages. | ||
| pub type FromRialtoMessageDispatch = messages::target::FromBridgedChainMessageDispatch< | ||
| WithRialtoMessageBridge, | ||
| crate::Runtime, | ||
| pallet_bridge_call_dispatch::DefaultInstance, | ||
| >; | ||
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| /// Millau <-> Rialto message bridge. | ||
| #[derive(RuntimeDebug, Clone, Copy)] | ||
| pub struct WithRialtoMessageBridge; | ||
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| impl MessageBridge for WithRialtoMessageBridge { | ||
| const INSTANCE: InstanceId = *b"rlto"; | ||
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| const RELAYER_FEE_PERCENT: u32 = 10; | ||
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| type ThisChain = Millau; | ||
| type BridgedChain = Rialto; | ||
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| fn maximal_dispatch_weight_of_message_on_bridged_chain() -> Weight { | ||
| // we don't want to relay too large messages + keep reserve for future upgrades | ||
| bp_rialto::MAXIMUM_EXTRINSIC_WEIGHT / 2 | ||
| } | ||
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| fn weight_of_delivery_transaction() -> Weight { | ||
| 0 // TODO: https://github.com/paritytech/parity-bridges-common/issues/391 | ||
| } | ||
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| fn weight_of_delivery_confirmation_transaction_on_this_chain() -> Weight { | ||
| 0 // TODO: https://github.com/paritytech/parity-bridges-common/issues/391 | ||
| } | ||
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| fn weight_of_reward_confirmation_transaction_on_target_chain() -> Weight { | ||
| 0 // TODO: https://github.com/paritytech/parity-bridges-common/issues/391 | ||
| } | ||
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| fn this_weight_to_balance(weight: Weight) -> bp_rialto::Balance { | ||
| <crate::Runtime as pallet_transaction_payment::Trait>::WeightToFee::calc(&weight) | ||
| } | ||
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| fn bridged_weight_to_balance(weight: Weight) -> bp_millau::Balance { | ||
| // we're using the same weights in both chains now | ||
| <crate::Runtime as pallet_transaction_payment::Trait>::WeightToFee::calc(&weight) | ||
| } | ||
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| fn this_chain_balance_to_bridged_chain_balance(this_balance: bp_rialto::Balance) -> bp_millau::Balance { | ||
| // 1:1 conversion that will probably change in the future | ||
| this_balance | ||
| } | ||
| } | ||
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| /// Millau chain from message lane point of view. | ||
| #[derive(RuntimeDebug, Clone, Copy)] | ||
| pub struct Millau; | ||
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| impl messages::ChainWithMessageLanes for Millau { | ||
| type AccountId = bp_millau::AccountId; | ||
| type Signer = bp_millau::AccountSigner; | ||
| type Signature = bp_millau::Signature; | ||
| type Call = crate::Call; | ||
| type Weight = Weight; | ||
| type Balance = bp_millau::Balance; | ||
| } | ||
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| /// Rialto chain from message lane point of view. | ||
| #[derive(RuntimeDebug, Clone, Copy)] | ||
| pub struct Rialto; | ||
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| impl messages::ChainWithMessageLanes for Rialto { | ||
| type AccountId = bp_rialto::AccountId; | ||
| type Signer = bp_rialto::AccountSigner; | ||
| type Signature = bp_rialto::Signature; | ||
| type Call = (); // unknown to us | ||
| type Weight = Weight; | ||
| type Balance = bp_rialto::Balance; | ||
| } | ||
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| impl TargetHeaderChain<ToRialtoMessagePayload, bp_rialto::AccountId> for Rialto { | ||
| type Error = &'static str; | ||
| // The proof is: | ||
| // - hash of the header this proof has been created with; | ||
| // - the storage proof or one or several keys; | ||
| // - id of the lane we prove state of. | ||
| type MessagesDeliveryProof = (bp_rialto::Hash, StorageProof, LaneId); | ||
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| fn verify_message(payload: &ToRialtoMessagePayload) -> Result<(), Self::Error> { | ||
| if payload.weight > WithRialtoMessageBridge::maximal_dispatch_weight_of_message_on_bridged_chain() { | ||
| return Err("Too large weight declared"); | ||
| } | ||
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| Ok(()) | ||
| } | ||
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| fn verify_messages_delivery_proof( | ||
| _proof: Self::MessagesDeliveryProof, | ||
| ) -> Result<(LaneId, InboundLaneData<bp_rialto::AccountId>), Self::Error> { | ||
| unimplemented!("https://github.com/paritytech/parity-bridges-common/issues/397") | ||
| } | ||
| } | ||
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| impl SourceHeaderChain<bp_rialto::Balance> for Rialto { | ||
| type Error = &'static str; | ||
| // The proof is: | ||
| // - hash of the header this proof has been created with; | ||
| // - the storage proof or one or several keys; | ||
| // - id of the lane we prove messages for; | ||
| // - inclusive range of messages nonces that are proved. | ||
| type MessagesProof = (bp_rialto::Hash, StorageProof, LaneId, MessageNonce, MessageNonce); | ||
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| fn verify_messages_proof( | ||
| _proof: Self::MessagesProof, | ||
| ) -> Result<ProvedMessages<Message<bp_rialto::Balance>>, Self::Error> { | ||
| unimplemented!("https://github.com/paritytech/parity-bridges-common/issues/397") | ||
| } | ||
| } |
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