git.delta.rocks / unique-network / refs/commits / d16d7f8bc42e

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/>.1617//! Implements EVM sponsoring logic via TransactionValidityHack1819use core::{convert::TryInto, marker::PhantomData};20use evm_coder::{Call, abi::AbiReader};21use pallet_common::{CollectionHandle, eth::map_eth_to_id};22use pallet_evm::account::CrossAccountId;23use pallet_evm_transaction_payment::CallContext;24use pallet_nonfungible::{25	Config as NonfungibleConfig,26	erc::{27		UniqueNFTCall, ERC721UniqueExtensionsCall, ERC721UniqueMintableCall, ERC721Call,28		TokenPropertiesCall,29	},30};31use pallet_fungible::{32	Config as FungibleConfig,33	erc::{UniqueFungibleCall, ERC20Call},34};35use pallet_refungible::Config as RefungibleConfig;36use pallet_unique::Config as UniqueConfig;37use sp_std::prelude::*;38use up_data_structs::{CollectionMode, CreateItemData, CreateNftData, TokenId};39use up_sponsorship::SponsorshipHandler;4041use crate::{Runtime, runtime_common::sponsoring::*};4243pub type EvmSponsorshipHandler = (44	UniqueEthSponsorshipHandler<Runtime>,45	pallet_evm_contract_helpers::HelpersContractSponsoring<Runtime>,46);4748pub struct UniqueEthSponsorshipHandler<T: UniqueConfig>(PhantomData<*const T>);49impl<T: UniqueConfig + FungibleConfig + NonfungibleConfig + RefungibleConfig>50	SponsorshipHandler<T::CrossAccountId, CallContext> for UniqueEthSponsorshipHandler<T>51{52	fn get_sponsor(53		who: &T::CrossAccountId,54		call_context: &CallContext,55	) -> Option<T::CrossAccountId> {56		let collection_id = map_eth_to_id(&call_context.contract_address)?;57		let collection = <CollectionHandle<T>>::new(collection_id)?;58		let sponsor = collection.sponsorship.sponsor()?.clone();59		let (method_id, mut reader) = AbiReader::new_call(&call_context.input).ok()?;60		Some(T::CrossAccountId::from_sub(match &collection.mode {61			CollectionMode::NFT => {62				let call = <UniqueNFTCall<T>>::parse(method_id, &mut reader).ok()??;63				match call {64					UniqueNFTCall::TokenProperties(TokenPropertiesCall::SetProperty {65						token_id,66						key,67						value,68						..69					}) => {70						let token_id: TokenId = token_id.try_into().ok()?;71						withdraw_set_token_property::<T>(72							&collection,73							&who,74							&token_id,75							key.len() + value.len(),76						)77						.map(|()| sponsor)78					}79					UniqueNFTCall::ERC721UniqueExtensions(80						ERC721UniqueExtensionsCall::Transfer { token_id, .. },81					) => {82						let token_id: TokenId = token_id.try_into().ok()?;83						withdraw_transfer::<T>(&collection, &who, &token_id).map(|()| sponsor)84					}85					UniqueNFTCall::ERC721UniqueMintable(86						ERC721UniqueMintableCall::Mint { .. }87						| ERC721UniqueMintableCall::MintCheckId { .. }88						| ERC721UniqueMintableCall::MintWithTokenUri { .. }89						| ERC721UniqueMintableCall::MintWithTokenUriCheckId { .. },90					) => withdraw_create_item::<T>(91						&collection,92						&who,93						&CreateItemData::NFT(CreateNftData::default()),94					)95					.map(|()| sponsor),96					UniqueNFTCall::ERC721(ERC721Call::TransferFrom { token_id, from, .. }) => {97						let token_id: TokenId = token_id.try_into().ok()?;98						let from = T::CrossAccountId::from_eth(from);99						withdraw_transfer::<T>(&collection, &from, &token_id).map(|()| sponsor)100					}101					UniqueNFTCall::ERC721(ERC721Call::Approve { token_id, .. }) => {102						let token_id: TokenId = token_id.try_into().ok()?;103						withdraw_approve::<T>(&collection, who.as_sub(), &token_id)104							.map(|()| sponsor)105					}106					_ => None,107				}108			}109			CollectionMode::Fungible(_) => {110				let call = <UniqueFungibleCall<T>>::parse(method_id, &mut reader).ok()??;111				#[allow(clippy::single_match)]112				match call {113					UniqueFungibleCall::ERC20(ERC20Call::Transfer { .. }) => {114						withdraw_transfer::<T>(&collection, who, &TokenId::default())115							.map(|()| sponsor)116					}117					UniqueFungibleCall::ERC20(ERC20Call::TransferFrom { from, .. }) => {118						let from = T::CrossAccountId::from_eth(from);119						withdraw_transfer::<T>(&collection, &from, &TokenId::default())120							.map(|()| sponsor)121					}122					UniqueFungibleCall::ERC20(ERC20Call::Approve { .. }) => {123						withdraw_approve::<T>(&collection, who.as_sub(), &TokenId::default())124							.map(|()| sponsor)125					}126					_ => None,127				}128			}129			_ => None,130		}?))131	}132}