git.delta.rocks / unique-network / refs/commits / eebd5d8677d8

1#![cfg_attr(not(feature = "std"), no_std)]23use erc::ERC721Events;4use frame_support::{BoundedVec, ensure};5use up_data_structs::{AccessMode, Collection, CollectionId, CustomDataLimit, TokenId};6use pallet_common::{7	Error as CommonError, Pallet as PalletCommon, Event as CommonEvent, account::CrossAccountId,8};9use pallet_evm_coder_substrate::{SubstrateRecorder, WithRecorder};10use sp_core::H160;11use sp_runtime::{ArithmeticError, DispatchError, DispatchResult};12use sp_std::{vec::Vec, vec};13use core::ops::Deref;14use sp_std::collections::btree_map::BTreeMap;15use codec::{Encode, Decode, MaxEncodedLen};16use scale_info::TypeInfo;1718pub use pallet::*;19#[cfg(feature = "runtime-benchmarks")]20pub mod benchmarking;21pub mod common;22pub mod erc;23pub mod weights;2425pub struct CreateItemData<T: Config> {26	pub const_data: BoundedVec<u8, CustomDataLimit>,27	pub variable_data: BoundedVec<u8, CustomDataLimit>,28	pub owner: T::CrossAccountId,29}30pub(crate) type SelfWeightOf<T> = <T as Config>::WeightInfo;3132#[derive(Encode, Decode, TypeInfo, MaxEncodedLen)]33pub struct ItemData<CrossAccountId> {34	pub const_data: BoundedVec<u8, CustomDataLimit>,35	pub variable_data: BoundedVec<u8, CustomDataLimit>,36	pub owner: CrossAccountId,37}3839#[frame_support::pallet]40pub mod pallet {41	use super::*;42	use frame_support::{Blake2_128Concat, Twox64Concat, pallet_prelude::*, storage::Key};43	use up_data_structs::{CollectionId, TokenId};44	use super::weights::WeightInfo;4546	#[pallet::error]47	pub enum Error<T> {48		/// Not Nonfungible item data used to mint in Nonfungible collection.49		NotNonfungibleDataUsedToMintFungibleCollectionToken,50		/// Used amount > 1 with NFT51		NonfungibleItemsHaveNoAmount,52	}5354	#[pallet::config]55	pub trait Config: frame_system::Config + pallet_common::Config {56		type WeightInfo: WeightInfo;57	}5859	#[pallet::pallet]60	#[pallet::generate_store(pub(super) trait Store)]61	pub struct Pallet<T>(_);6263	#[pallet::storage]64	pub type TokensMinted<T: Config> =65		StorageMap<Hasher = Twox64Concat, Key = CollectionId, Value = u32, QueryKind = ValueQuery>;66	#[pallet::storage]67	pub type TokensBurnt<T: Config> =68		StorageMap<Hasher = Twox64Concat, Key = CollectionId, Value = u32, QueryKind = ValueQuery>;6970	#[pallet::storage]71	pub type TokenData<T: Config> = StorageNMap<72		Key = (Key<Twox64Concat, CollectionId>, Key<Twox64Concat, TokenId>),73		Value = ItemData<T::CrossAccountId>,74		QueryKind = OptionQuery,75	>;7677	/// Used to enumerate tokens owned by account78	#[pallet::storage]79	pub type Owned<T: Config> = StorageNMap<80		Key = (81			Key<Twox64Concat, CollectionId>,82			Key<Blake2_128Concat, T::CrossAccountId>,83			Key<Twox64Concat, TokenId>,84		),85		Value = bool,86		QueryKind = ValueQuery,87	>;8889	#[pallet::storage]90	pub type AccountBalance<T: Config> = StorageNMap<91		Key = (92			Key<Twox64Concat, CollectionId>,93			Key<Blake2_128Concat, T::CrossAccountId>,94		),95		Value = u32,96		QueryKind = ValueQuery,97	>;9899	#[pallet::storage]100	pub type Allowance<T: Config> = StorageNMap<101		Key = (Key<Twox64Concat, CollectionId>, Key<Twox64Concat, TokenId>),102		Value = T::CrossAccountId,103		QueryKind = OptionQuery,104	>;105}106107pub struct NonfungibleHandle<T: Config>(pallet_common::CollectionHandle<T>);108impl<T: Config> NonfungibleHandle<T> {109	pub fn cast(inner: pallet_common::CollectionHandle<T>) -> Self {110		Self(inner)111	}112	pub fn into_inner(self) -> pallet_common::CollectionHandle<T> {113		self.0114	}115}116impl<T: Config> WithRecorder<T> for NonfungibleHandle<T> {117	fn recorder(&self) -> &SubstrateRecorder<T> {118		self.0.recorder()119	}120	fn into_recorder(self) -> SubstrateRecorder<T> {121		self.0.into_recorder()122	}123}124impl<T: Config> Deref for NonfungibleHandle<T> {125	type Target = pallet_common::CollectionHandle<T>;126127	fn deref(&self) -> &Self::Target {128		&self.0129	}130}131132impl<T: Config> Pallet<T> {133	pub fn total_supply(collection: &NonfungibleHandle<T>) -> u32 {134		<TokensMinted<T>>::get(collection.id) - <TokensBurnt<T>>::get(collection.id)135	}136	pub fn token_exists(collection: &NonfungibleHandle<T>, token: TokenId) -> bool {137		<TokenData<T>>::contains_key((collection.id, token))138	}139}140141// unchecked calls skips any permission checks142impl<T: Config> Pallet<T> {143	pub fn init_collection(data: Collection<T::AccountId>) -> Result<CollectionId, DispatchError> {144		<PalletCommon<T>>::init_collection(data)145	}146	pub fn destroy_collection(147		collection: NonfungibleHandle<T>,148		sender: &T::CrossAccountId,149	) -> DispatchResult {150		let id = collection.id;151152		// =========153154		PalletCommon::destroy_collection(collection.0, sender)?;155156		<TokenData<T>>::remove_prefix((id,), None);157		<Owned<T>>::remove_prefix((id,), None);158		<TokensMinted<T>>::remove(id);159		<TokensBurnt<T>>::remove(id);160		<Allowance<T>>::remove_prefix((id,), None);161		<AccountBalance<T>>::remove_prefix((id,), None);162		Ok(())163	}164165	pub fn burn(166		collection: &NonfungibleHandle<T>,167		sender: &T::CrossAccountId,168		token: TokenId,169	) -> DispatchResult {170		let token_data =171			<TokenData<T>>::get((collection.id, token)).ok_or(<CommonError<T>>::TokenNotFound)?;172		ensure!(173			&token_data.owner == sender174				|| (collection.limits.owner_can_transfer() && collection.is_owner_or_admin(sender)),175			<CommonError<T>>::NoPermission176		);177178		if collection.access == AccessMode::AllowList {179			collection.check_allowlist(sender)?;180		}181182		let burnt = <TokensBurnt<T>>::get(collection.id)183			.checked_add(1)184			.ok_or(ArithmeticError::Overflow)?;185186		let balance = <AccountBalance<T>>::get((collection.id, token_data.owner.clone()))187			.checked_sub(1)188			.ok_or(ArithmeticError::Overflow)?;189190		if balance == 0 {191			<AccountBalance<T>>::remove((collection.id, token_data.owner.clone()));192		} else {193			<AccountBalance<T>>::insert((collection.id, token_data.owner.clone()), balance);194		}195		// =========196197		<Owned<T>>::remove((collection.id, &token_data.owner, token));198		<TokensBurnt<T>>::insert(collection.id, burnt);199		<TokenData<T>>::remove((collection.id, token));200		let old_spender = <Allowance<T>>::take((collection.id, token));201202		if let Some(old_spender) = old_spender {203			<PalletCommon<T>>::deposit_event(CommonEvent::Approved(204				collection.id,205				token,206				sender.clone(),207				old_spender,208				0,209			));210		}211212		collection.log_mirrored(ERC721Events::Transfer {213			from: *token_data.owner.as_eth(),214			to: H160::default(),215			token_id: token.into(),216		});217		<PalletCommon<T>>::deposit_event(CommonEvent::ItemDestroyed(218			collection.id,219			token,220			token_data.owner,221			1,222		));223		Ok(())224	}225226	pub fn transfer(227		collection: &NonfungibleHandle<T>,228		from: &T::CrossAccountId,229		to: &T::CrossAccountId,230		token: TokenId,231	) -> DispatchResult {232		ensure!(233			collection.limits.transfers_enabled(),234			<CommonError<T>>::TransferNotAllowed235		);236237		let token_data =238			<TokenData<T>>::get((collection.id, token)).ok_or(<CommonError<T>>::TokenNotFound)?;239		ensure!(240			&token_data.owner == from241				|| (collection.limits.owner_can_transfer() && collection.is_owner_or_admin(from)),242			<CommonError<T>>::NoPermission243		);244245		if collection.access == AccessMode::AllowList {246			collection.check_allowlist(from)?;247			collection.check_allowlist(to)?;248		}249		<PalletCommon<T>>::ensure_correct_receiver(to)?;250251		let balance_from = <AccountBalance<T>>::get((collection.id, from))252			.checked_sub(1)253			.ok_or(<CommonError<T>>::TokenValueTooLow)?;254		let balance_to = if from != to {255			let balance_to = <AccountBalance<T>>::get((collection.id, to))256				.checked_add(1)257				.ok_or(ArithmeticError::Overflow)?;258259			ensure!(260				balance_to < collection.limits.account_token_ownership_limit(),261				<CommonError<T>>::AccountTokenLimitExceeded,262			);263264			Some(balance_to)265		} else {266			None267		};268269		// =========270271		<TokenData<T>>::insert(272			(collection.id, token),273			ItemData {274				owner: to.clone(),275				..token_data276			},277		);278279		if let Some(balance_to) = balance_to {280			// from != to281			if balance_from == 0 {282				<AccountBalance<T>>::remove((collection.id, from));283			} else {284				<AccountBalance<T>>::insert((collection.id, from), balance_from);285			}286			<AccountBalance<T>>::insert((collection.id, to), balance_to);287			<Owned<T>>::remove((collection.id, from, token));288			<Owned<T>>::insert((collection.id, to, token), true);289		}290		Self::set_allowance_unchecked(collection, from, token, None, true);291292		collection.log_mirrored(ERC721Events::Transfer {293			from: *from.as_eth(),294			to: *to.as_eth(),295			token_id: token.into(),296		});297		<PalletCommon<T>>::deposit_event(CommonEvent::Transfer(298			collection.id,299			token,300			from.clone(),301			to.clone(),302			1,303		));304		Ok(())305	}306307	pub fn create_multiple_items(308		collection: &NonfungibleHandle<T>,309		sender: &T::CrossAccountId,310		data: Vec<CreateItemData<T>>,311	) -> DispatchResult {312		if !collection.is_owner_or_admin(sender) {313			ensure!(314				collection.mint_mode,315				<CommonError<T>>::PublicMintingNotAllowed316			);317			collection.check_allowlist(sender)?;318319			for item in data.iter() {320				collection.check_allowlist(&item.owner)?;321			}322		}323324		for data in data.iter() {325			<PalletCommon<T>>::ensure_correct_receiver(&data.owner)?;326		}327328		let first_token = <TokensMinted<T>>::get(collection.id);329		let tokens_minted = first_token330			.checked_add(data.len() as u32)331			.ok_or(ArithmeticError::Overflow)?;332		ensure!(333			tokens_minted <= collection.limits.token_limit(),334			<CommonError<T>>::CollectionTokenLimitExceeded335		);336337		let mut balances = BTreeMap::new();338		for data in &data {339			let balance = balances340				.entry(&data.owner)341				.or_insert_with(|| <AccountBalance<T>>::get((collection.id, &data.owner)));342			*balance = balance.checked_add(1).ok_or(ArithmeticError::Overflow)?;343344			ensure!(345				*balance <= collection.limits.account_token_ownership_limit(),346				<CommonError<T>>::AccountTokenLimitExceeded,347			);348		}349350		// =========351352		<TokensMinted<T>>::insert(collection.id, tokens_minted);353		for (account, balance) in balances {354			<AccountBalance<T>>::insert((collection.id, account), balance);355		}356		for (i, data) in data.into_iter().enumerate() {357			let token = first_token + i as u32 + 1;358359			<TokenData<T>>::insert(360				(collection.id, token),361				ItemData {362					const_data: data.const_data,363					variable_data: data.variable_data,364					owner: data.owner.clone(),365				},366			);367			<Owned<T>>::insert((collection.id, &data.owner, token), true);368369			collection.log_mirrored(ERC721Events::Transfer {370				from: H160::default(),371				to: *data.owner.as_eth(),372				token_id: token.into(),373			});374			<PalletCommon<T>>::deposit_event(CommonEvent::ItemCreated(375				collection.id,376				TokenId(token),377				data.owner.clone(),378				1,379			));380		}381		Ok(())382	}383384	pub fn set_allowance_unchecked(385		collection: &NonfungibleHandle<T>,386		sender: &T::CrossAccountId,387		token: TokenId,388		spender: Option<&T::CrossAccountId>,389		assume_implicit_eth: bool,390	) {391		if let Some(spender) = spender {392			let old_spender = <Allowance<T>>::get((collection.id, token));393			<Allowance<T>>::insert((collection.id, token), spender);394			// In ERC721 there is only one possible approved user of token, so we set395			// approved user to spender396			collection.log_mirrored(ERC721Events::Approval {397				owner: *sender.as_eth(),398				approved: *spender.as_eth(),399				token_id: token.into(),400			});401			// In Unique chain, any token can have any amount of approved users, so we need to402			// set allowance of old owner to 0, and allowance of new owner to 1403			if old_spender.as_ref() != Some(spender) {404				if let Some(old_owner) = old_spender {405					<PalletCommon<T>>::deposit_event(CommonEvent::Approved(406						collection.id,407						token,408						sender.clone(),409						old_owner,410						0,411					));412				}413				<PalletCommon<T>>::deposit_event(CommonEvent::Approved(414					collection.id,415					token,416					sender.clone(),417					spender.clone(),418					1,419				));420			}421		} else {422			let old_spender = <Allowance<T>>::take((collection.id, token));423			if !assume_implicit_eth {424				// In ERC721 there is only one possible approved user of token, so we set425				// approved user to zero address426				collection.log_mirrored(ERC721Events::Approval {427					owner: *sender.as_eth(),428					approved: H160::default(),429					token_id: token.into(),430				});431			}432			// In Unique chain, any token can have any amount of approved users, so we need to433			// set allowance of old owner to 0434			if let Some(old_spender) = old_spender {435				<PalletCommon<T>>::deposit_event(CommonEvent::Approved(436					collection.id,437					token,438					sender.clone(),439					old_spender,440					0,441				));442			}443		}444	}445446	pub fn set_allowance(447		collection: &NonfungibleHandle<T>,448		sender: &T::CrossAccountId,449		token: TokenId,450		spender: Option<&T::CrossAccountId>,451	) -> DispatchResult {452		if collection.access == AccessMode::AllowList {453			collection.check_allowlist(sender)?;454			if let Some(spender) = spender {455				collection.check_allowlist(spender)?;456			}457		}458459		if let Some(spender) = spender {460			<PalletCommon<T>>::ensure_correct_receiver(spender)?;461		}462		let token_data =463			<TokenData<T>>::get((collection.id, token)).ok_or(<CommonError<T>>::TokenNotFound)?;464		if &token_data.owner != sender {465			ensure!(466				collection.ignores_owned_amount(sender),467				<CommonError<T>>::CantApproveMoreThanOwned468			);469		}470471		// =========472473		Self::set_allowance_unchecked(collection, sender, token, spender, false);474		Ok(())475	}476477	pub fn transfer_from(478		collection: &NonfungibleHandle<T>,479		spender: &T::CrossAccountId,480		from: &T::CrossAccountId,481		to: &T::CrossAccountId,482		token: TokenId,483	) -> DispatchResult {484		if spender.conv_eq(from) {485			return Self::transfer(collection, from, to, token);486		}487		if collection.access == AccessMode::AllowList {488			// `from`, `to` checked in [`transfer`]489			collection.check_allowlist(spender)?;490		}491492		if <Allowance<T>>::get((collection.id, token)).as_ref() != Some(spender) {493			ensure!(494				collection.ignores_allowance(spender),495				<CommonError<T>>::TokenValueNotEnough496			);497		}498499		// =========500501		Self::transfer(collection, from, to, token)?;502		// Allowance is reset in [`transfer`]503		Ok(())504	}505506	pub fn burn_from(507		collection: &NonfungibleHandle<T>,508		spender: &T::CrossAccountId,509		from: &T::CrossAccountId,510		token: TokenId,511	) -> DispatchResult {512		if spender.conv_eq(from) {513			return Self::burn(collection, from, token);514		}515		if collection.access == AccessMode::AllowList {516			// `from` checked in [`burn`]517			collection.check_allowlist(spender)?;518		}519520		if <Allowance<T>>::get((collection.id, token)).as_ref() != Some(spender) {521			ensure!(522				collection.ignores_allowance(spender),523				<CommonError<T>>::TokenValueNotEnough524			);525		}526527		// =========528529		Self::burn(collection, from, token)530	}531532	pub fn set_variable_metadata(533		collection: &NonfungibleHandle<T>,534		sender: &T::CrossAccountId,535		token: TokenId,536		data: BoundedVec<u8, CustomDataLimit>,537	) -> DispatchResult {538		let token_data =539			<TokenData<T>>::get((collection.id, token)).ok_or(<CommonError<T>>::TokenNotFound)?;540		collection.check_can_update_meta(sender, &token_data.owner)?;541542		// =========543544		<TokenData<T>>::insert(545			(collection.id, token),546			ItemData {547				variable_data: data,548				..token_data549			},550		);551		Ok(())552	}553554	/// Delegated to `create_multiple_items`555	pub fn create_item(556		collection: &NonfungibleHandle<T>,557		sender: &T::CrossAccountId,558		data: CreateItemData<T>,559	) -> DispatchResult {560		Self::create_multiple_items(collection, sender, vec![data])561	}562}