mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-06 16:08:08 +00:00
Clara van Staden
2ab3f03f0b
Removes the `bridges/snowbridge/parachain` directory and moves everything up to under `snowbridge` directly. We are cleaning up our local dev env after merging our crates into the polkadot-sdk. --------- Co-authored-by: claravanstaden <Cats 4 life!>
101 lines
3.0 KiB
Rust
101 lines
3.0 KiB
Rust
// SPDX-License-Identifier: Apache-2.0
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// SPDX-FileCopyrightText: 2023 Snowfork <hello@snowfork.com>
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//! Implementation for [`snowbridge_core::outbound::SendMessage`]
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use super::*;
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use bridge_hub_common::AggregateMessageOrigin;
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use codec::Encode;
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use frame_support::{
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ensure,
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traits::{EnqueueMessage, Get},
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CloneNoBound, PartialEqNoBound, RuntimeDebugNoBound,
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};
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use frame_system::unique;
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use snowbridge_core::{
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outbound::{
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Fee, Message, QueuedMessage, SendError, SendMessage, SendMessageFeeProvider,
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VersionedQueuedMessage,
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},
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ChannelId, PRIMARY_GOVERNANCE_CHANNEL,
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};
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use sp_core::H256;
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use sp_runtime::BoundedVec;
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/// The maximal length of an enqueued message, as determined by the MessageQueue pallet
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pub type MaxEnqueuedMessageSizeOf<T> =
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<<T as Config>::MessageQueue as EnqueueMessage<AggregateMessageOrigin>>::MaxMessageLen;
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#[derive(Encode, Decode, CloneNoBound, PartialEqNoBound, RuntimeDebugNoBound)]
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pub struct Ticket<T>
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where
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T: Config,
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{
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pub message_id: H256,
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pub channel_id: ChannelId,
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pub message: BoundedVec<u8, MaxEnqueuedMessageSizeOf<T>>,
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}
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impl<T> SendMessage for Pallet<T>
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where
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T: Config,
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{
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type Ticket = Ticket<T>;
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fn validate(
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message: &Message,
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) -> Result<(Self::Ticket, Fee<<Self as SendMessageFeeProvider>::Balance>), SendError> {
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// The inner payload should not be too large
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let payload = message.command.abi_encode();
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ensure!(
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payload.len() < T::MaxMessagePayloadSize::get() as usize,
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SendError::MessageTooLarge
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);
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// Ensure there is a registered channel we can transmit this message on
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ensure!(T::Channels::contains(&message.channel_id), SendError::InvalidChannel);
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// Generate a unique message id unless one is provided
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let message_id: H256 = message
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.id
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.unwrap_or_else(|| unique((message.channel_id, &message.command)).into());
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let gas_used_at_most = T::GasMeter::maximum_gas_used_at_most(&message.command);
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let fee = Self::calculate_fee(gas_used_at_most, T::PricingParameters::get());
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let queued_message: VersionedQueuedMessage = QueuedMessage {
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id: message_id,
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channel_id: message.channel_id,
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command: message.command.clone(),
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}
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.into();
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// The whole message should not be too large
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let encoded = queued_message.encode().try_into().map_err(|_| SendError::MessageTooLarge)?;
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let ticket = Ticket { message_id, channel_id: message.channel_id, message: encoded };
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Ok((ticket, fee))
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}
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fn deliver(ticket: Self::Ticket) -> Result<H256, SendError> {
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let origin = AggregateMessageOrigin::Snowbridge(ticket.channel_id);
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if ticket.channel_id != PRIMARY_GOVERNANCE_CHANNEL {
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ensure!(!Self::operating_mode().is_halted(), SendError::Halted);
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}
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let message = ticket.message.as_bounded_slice();
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T::MessageQueue::enqueue_message(message, origin);
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Self::deposit_event(Event::MessageQueued { id: ticket.message_id });
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Ok(ticket.message_id)
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}
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}
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impl<T: Config> SendMessageFeeProvider for Pallet<T> {
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type Balance = T::Balance;
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/// The local component of the message processing fees in native currency
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fn local_fee() -> Self::Balance {
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Self::calculate_local_fee()
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}
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}
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