git.delta.rocks / unique-network / refs/commits / 3cddb472af6f

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 core::marker::PhantomData;18use up_sponsorship::SponsorshipHandler;19use frame_support::{20	traits::{IsSubType},21	storage::{StorageMap, StorageDoubleMap, StorageNMap},22};23use up_data_structs::{24	CollectionId, FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT, NFT_SPONSOR_TRANSFER_TIMEOUT,25	REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT, TokenId, CollectionMode, CreateItemData,26};27use sp_runtime::traits::Saturating;28use pallet_common::{CollectionHandle};29use pallet_evm::account::CrossAccountId;30use pallet_unique::{31	Call as UniqueCall, Config as UniqueConfig, FungibleApproveBasket, RefungibleApproveBasket,32	NftApproveBasket, CreateItemBasket, ReFungibleTransferBasket, FungibleTransferBasket,33	NftTransferBasket, TokenPropertyBasket,34};35use pallet_fungible::Config as FungibleConfig;36use pallet_nonfungible::Config as NonfungibleConfig;37use pallet_refungible::Config as RefungibleConfig;3839pub trait Config: UniqueConfig + FungibleConfig + NonfungibleConfig + RefungibleConfig {}40impl<T> Config for T where T: UniqueConfig + FungibleConfig + NonfungibleConfig + RefungibleConfig {}4142// TODO: permission check?43pub fn withdraw_set_token_property<T: Config>(44	collection: &CollectionHandle<T>,45	who: &T::CrossAccountId,46	item_id: &TokenId,47	data_size: usize,48) -> Option<()> {49	// preliminary sponsoring correctness check50	match collection.mode {51		CollectionMode::NFT => {52			let owner = pallet_nonfungible::TokenData::<T>::get((collection.id, item_id))?.owner;53			if !owner.conv_eq(who) {54				return None;55			}56		}57		CollectionMode::Fungible(_) => {58			// Fungible tokens have no properties59			return None;60		}61		CollectionMode::ReFungible => {62			if !<pallet_refungible::Owned<T>>::get((collection.id, who, item_id)) {63				return None;64			}65		}66	}6768	if data_size > collection.limits.sponsored_data_size() as usize {69		return None;70	}7172	let block_number = <frame_system::Pallet<T>>::block_number() as T::BlockNumber;73	let limit = collection.limits.sponsored_data_rate_limit()?;7475	if let Some(last_tx_block) = TokenPropertyBasket::<T>::get(collection.id, item_id) {76		let timeout = last_tx_block + limit.into();77		if block_number < timeout {78			return None;79		}80	}8182	<TokenPropertyBasket<T>>::insert(collection.id, item_id, block_number);8384	Some(())85}8687pub fn withdraw_transfer<T: Config>(88	collection: &CollectionHandle<T>,89	who: &T::CrossAccountId,90	item_id: &TokenId,91) -> Option<()> {92	// preliminary sponsoring correctness check93	match collection.mode {94		CollectionMode::NFT => {95			let owner = pallet_nonfungible::TokenData::<T>::get((collection.id, item_id))?.owner;96			if !owner.conv_eq(who) {97				return None;98			}99		}100		CollectionMode::Fungible(_) => {101			if item_id != &TokenId::default() {102				return None;103			}104			if <pallet_fungible::Balance<T>>::get((collection.id, who)) == 0 {105				return None;106			}107		}108		CollectionMode::ReFungible => {109			if !<pallet_refungible::Owned<T>>::get((collection.id, who, item_id)) {110				return None;111			}112		}113	}114115	// sponsor timeout116	let block_number = <frame_system::Pallet<T>>::block_number() as T::BlockNumber;117	let limit = collection118		.limits119		.sponsor_transfer_timeout(match collection.mode {120			CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,121			CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,122			CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,123		});124125	let last_tx_block = match collection.mode {126		CollectionMode::NFT => <NftTransferBasket<T>>::get(collection.id, item_id),127		CollectionMode::Fungible(_) => {128			<FungibleTransferBasket<T>>::get(collection.id, who.as_sub())129		}130		CollectionMode::ReFungible => {131			<ReFungibleTransferBasket<T>>::get((collection.id, item_id, who.as_sub()))132		}133	};134135	if let Some(last_tx_block) = last_tx_block {136		let timeout = last_tx_block + limit.into();137		if block_number < timeout {138			return None;139		}140	}141142	match collection.mode {143		CollectionMode::NFT => <NftTransferBasket<T>>::insert(collection.id, item_id, block_number),144		CollectionMode::Fungible(_) => {145			<FungibleTransferBasket<T>>::insert(collection.id, who.as_sub(), block_number)146		}147		CollectionMode::ReFungible => <ReFungibleTransferBasket<T>>::insert(148			(collection.id, item_id, who.as_sub()),149			block_number,150		),151	};152153	Some(())154}155156pub fn withdraw_create_item<T: Config>(157	collection: &CollectionHandle<T>,158	who: &T::CrossAccountId,159	properties: &CreateItemData,160) -> Option<()> {161	// sponsor timeout162	let block_number = <frame_system::Pallet<T>>::block_number() as T::BlockNumber;163	let limit = collection164		.limits165		.sponsor_transfer_timeout(match properties {166			CreateItemData::NFT(_) => NFT_SPONSOR_TRANSFER_TIMEOUT,167			CreateItemData::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,168			CreateItemData::ReFungible(_) => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,169		});170171	if let Some(last_tx_block) = <CreateItemBasket<T>>::get((collection.id, who.as_sub())) {172		let timeout = last_tx_block + limit.into();173		if block_number < timeout {174			return None;175		}176	}177178	CreateItemBasket::<T>::insert((collection.id, who.as_sub()), block_number);179180	Some(())181}182183pub fn withdraw_approve<T: Config>(184	collection: &CollectionHandle<T>,185	who: &T::AccountId,186	item_id: &TokenId,187) -> Option<()> {188	// sponsor timeout189	let block_number = <frame_system::Pallet<T>>::block_number() as T::BlockNumber;190	let limit = collection.limits.sponsor_approve_timeout();191192	let last_tx_block = match collection.mode {193		CollectionMode::NFT => <NftApproveBasket<T>>::get(collection.id, item_id),194		CollectionMode::Fungible(_) => <FungibleApproveBasket<T>>::get(collection.id, who),195		CollectionMode::ReFungible => {196			<RefungibleApproveBasket<T>>::get((collection.id, item_id, who))197		}198	};199200	if let Some(last_tx_block) = last_tx_block {201		let timeout = last_tx_block + limit.into();202		if block_number < timeout {203			return None;204		}205	}206207	match collection.mode {208		CollectionMode::NFT => <NftApproveBasket<T>>::insert(collection.id, item_id, block_number),209		CollectionMode::Fungible(_) => {210			<FungibleApproveBasket<T>>::insert(collection.id, who, block_number)211		}212		CollectionMode::ReFungible => {213			<RefungibleApproveBasket<T>>::insert((collection.id, item_id, who), block_number)214		}215	};216217	Some(())218}219220fn load<T: UniqueConfig>(id: CollectionId) -> Option<(T::AccountId, CollectionHandle<T>)> {221	let collection = CollectionHandle::new(id)?;222	let sponsor = collection.sponsorship.sponsor().cloned()?;223	Some((sponsor, collection))224}225226pub struct UniqueSponsorshipHandler<T>(PhantomData<T>);227impl<T, C> SponsorshipHandler<T::AccountId, C> for UniqueSponsorshipHandler<T>228where229	T: Config,230	C: IsSubType<UniqueCall<T>>,231{232	fn get_sponsor(who: &T::AccountId, call: &C) -> Option<T::AccountId> {233		match IsSubType::<UniqueCall<T>>::is_sub_type(call)? {234			UniqueCall::set_token_properties {235				collection_id,236				token_id,237				properties,238				..239			} => {240				let (sponsor, collection) = load::<T>(*collection_id)?;241				withdraw_set_token_property(242					&collection,243					&T::CrossAccountId::from_sub(who.clone()),244					&token_id,245					// No overflow may happen, as data larger than usize can't reach here246					properties.iter().map(|p| p.key.len() + p.value.len()).sum(),247				)248				.map(|()| sponsor)249			}250			UniqueCall::create_item {251				collection_id,252				data,253				..254			} => {255				let (sponsor, collection) = load(*collection_id)?;256				withdraw_create_item::<T>(257					&collection,258					&T::CrossAccountId::from_sub(who.clone()),259					data,260				)261				.map(|()| sponsor)262			}263			UniqueCall::transfer {264				collection_id,265				item_id,266				..267			} => {268				let (sponsor, collection) = load(*collection_id)?;269				withdraw_transfer::<T>(270					&collection,271					&T::CrossAccountId::from_sub(who.clone()),272					item_id,273				)274				.map(|()| sponsor)275			}276			UniqueCall::transfer_from {277				collection_id,278				item_id,279				from,280				..281			} => {282				let (sponsor, collection) = load(*collection_id)?;283				withdraw_transfer::<T>(&collection, from, item_id).map(|()| sponsor)284			}285			UniqueCall::approve {286				collection_id,287				item_id,288				..289			} => {290				let (sponsor, collection) = load(*collection_id)?;291				withdraw_approve::<T>(&collection, who, item_id).map(|()| sponsor)292			}293			_ => None,294		}295	}296}297298pub trait SponsorshipPredict<T: Config> {299	fn predict(collection: CollectionId, account: T::CrossAccountId, token: TokenId) -> Option<u64>300	where301		u64: From<<T as frame_system::Config>::BlockNumber>;302}303304pub struct UniqueSponsorshipPredict<T>(PhantomData<T>);305306impl<T: Config> SponsorshipPredict<T> for UniqueSponsorshipPredict<T> {307	fn predict(collection_id: CollectionId, who: T::CrossAccountId, token: TokenId) -> Option<u64>308	where309		u64: From<<T as frame_system::Config>::BlockNumber>,310	{311		let collection = <CollectionHandle<T>>::try_get(collection_id).ok()?;312		let _ = collection.sponsorship.sponsor()?;313314		// sponsor timeout315		let block_number = <frame_system::Pallet<T>>::block_number() as T::BlockNumber;316		let limit = collection317			.limits318			.sponsor_transfer_timeout(match collection.mode {319				CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,320				CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,321				CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,322			});323324		let last_tx_block = match collection.mode {325			CollectionMode::NFT => <NftTransferBasket<T>>::get(collection.id, token),326			CollectionMode::Fungible(_) => {327				<FungibleTransferBasket<T>>::get(collection.id, who.as_sub())328			}329			CollectionMode::ReFungible => {330				<ReFungibleTransferBasket<T>>::get((collection.id, token, who.as_sub()))331			}332		};333334		if let Some(last_tx_block) = last_tx_block {335			return Some(336				last_tx_block337					.saturating_add(limit.into())338					.saturating_sub(block_number)339					.into(),340			);341		}342343		let token_exists = match collection.mode {344			CollectionMode::NFT => {345				<pallet_nonfungible::TokenData<T>>::contains_key((collection.id, token))346			}347			CollectionMode::Fungible(_) => token == TokenId::default(),348			CollectionMode::ReFungible => {349				<pallet_refungible::TotalSupply<T>>::contains_key((collection.id, token))350			}351		};352353		if token_exists {354			Some(0)355		} else {356			None357		}358	}359}