git.delta.rocks / unique-network / refs/commits / 278f1b9c8b83

1#![cfg_attr(not(feature = "std"), no_std)]23use core::ops::{Deref, DerefMut};4use sp_std::vec::Vec;5use account::CrossAccountId;6use frame_support::{7	dispatch::{DispatchErrorWithPostInfo, DispatchResultWithPostInfo},8	ensure, fail,9	traits::{Imbalance, Get, Currency},10};11use nft_data_structs::{12	COLLECTION_NUMBER_LIMIT, Collection, CollectionId, CreateItemData, ExistenceRequirement,13	MAX_COLLECTION_DESCRIPTION_LENGTH, MAX_COLLECTION_NAME_LENGTH, MAX_TOKEN_PREFIX_LENGTH,14	MetaUpdatePermission, Pays, PostDispatchInfo, TokenId, Weight, WithdrawReasons,15};16pub use pallet::*;17use sp_core::H160;18use sp_runtime::{ArithmeticError, DispatchError, DispatchResult};19pub mod account;20#[cfg(feature = "runtime-benchmarks")]21pub mod benchmarking;22pub mod erc;23pub mod eth;2425#[must_use = "Should call submit_logs or save, otherwise some data will be lost for evm side"]26pub struct CollectionHandle<T: Config> {27	pub id: CollectionId,28	collection: Collection<T>,29	pub recorder: pallet_evm_coder_substrate::SubstrateRecorder<T>,30}31impl<T: Config> CollectionHandle<T> {32	pub fn new_with_gas_limit(id: CollectionId, gas_limit: u64) -> Option<Self> {33		<CollectionById<T>>::get(id).map(|collection| Self {34			id,35			collection,36			recorder: pallet_evm_coder_substrate::SubstrateRecorder::new(37				eth::collection_id_to_address(id),38				gas_limit,39			),40		})41	}42	pub fn new(id: CollectionId) -> Option<Self> {43		Self::new_with_gas_limit(id, u64::MAX)44	}45	pub fn try_get(id: CollectionId) -> Result<Self, DispatchError> {46		Ok(Self::new(id).ok_or_else(|| <Error<T>>::CollectionNotFound)?)47	}48	pub fn log(&self, log: impl evm_coder::ToLog) -> DispatchResult {49		self.recorder.log_sub(log)50	}51	pub fn log_infallible(&self, log: impl evm_coder::ToLog) {52		self.recorder.log_infallible(log)53	}54	#[allow(dead_code)]55	fn consume_gas(&self, gas: u64) -> DispatchResult {56		self.recorder.consume_gas_sub(gas)57	}58	pub fn consume_sload(&self) -> DispatchResult {59		self.recorder.consume_sload_sub()60	}61	pub fn consume_sstores(&self, amount: usize) -> DispatchResult {62		self.recorder.consume_sstores_sub(amount)63	}64	pub fn consume_sstore(&self) -> DispatchResult {65		self.recorder.consume_sstore_sub()66	}67	pub fn consume_log(&self, topics: usize, data: usize) -> DispatchResult {68		self.recorder.consume_log_sub(topics, data)69	}70	pub fn submit_logs(self) -> DispatchResult {71		self.recorder.submit_logs()72	}73	pub fn save(self) -> DispatchResult {74		self.recorder.submit_logs()?;75		<CollectionById<T>>::insert(self.id, self.collection);76		Ok(())77	}78}79impl<T: Config> Deref for CollectionHandle<T> {80	type Target = Collection<T>;8182	fn deref(&self) -> &Self::Target {83		&self.collection84	}85}8687impl<T: Config> DerefMut for CollectionHandle<T> {88	fn deref_mut(&mut self) -> &mut Self::Target {89		&mut self.collection90	}91}9293impl<T: Config> CollectionHandle<T> {94	pub fn check_is_owner(&self, subject: &T::CrossAccountId) -> DispatchResult {95		ensure!(*subject.as_sub() == self.owner, <Error<T>>::NoPermission);96		Ok(())97	}98	pub fn is_owner_or_admin(&self, subject: &T::CrossAccountId) -> Result<bool, DispatchError> {99		self.consume_sload()?;100101		Ok(*subject.as_sub() == self.owner || <IsAdmin<T>>::get((self.id, subject.as_sub())))102	}103	pub fn check_is_owner_or_admin(&self, subject: &T::CrossAccountId) -> DispatchResult {104		ensure!(self.is_owner_or_admin(subject)?, <Error<T>>::NoPermission);105		Ok(())106	}107	pub fn ignores_allowance(&self, user: &T::CrossAccountId) -> Result<bool, DispatchError> {108		Ok(self.limits.owner_can_transfer && self.is_owner_or_admin(user)?)109	}110	pub fn ignores_owned_amount(&self, user: &T::CrossAccountId) -> Result<bool, DispatchError> {111		Ok(self.limits.owner_can_transfer && self.is_owner_or_admin(user)?)112	}113	pub fn check_allowlist(&self, user: &T::CrossAccountId) -> DispatchResult {114		self.consume_sload()?;115116		ensure!(117			<Allowlist<T>>::get((self.id, user.as_sub())),118			<Error<T>>::AddressNotInAllowlist119		);120		Ok(())121	}122123	pub fn check_can_update_meta(124		&self,125		subject: &T::CrossAccountId,126		item_owner: &T::CrossAccountId,127	) -> DispatchResult {128		match self.meta_update_permission {129			MetaUpdatePermission::ItemOwner => {130				ensure!(subject == item_owner, <Error<T>>::NoPermission);131				Ok(())132			}133			MetaUpdatePermission::Admin => self.check_is_owner_or_admin(subject),134			MetaUpdatePermission::None => fail!(<Error<T>>::NoPermission),135		}136	}137}138139#[frame_support::pallet]140pub mod pallet {141	use super::*;142	use frame_support::{pallet_prelude::*};143	use frame_support::{Blake2_128Concat, storage::Key};144	use account::{EvmBackwardsAddressMapping, CrossAccountId};145	use frame_support::traits::Currency;146	use nft_data_structs::TokenId;147148	#[pallet::config]149	pub trait Config: frame_system::Config + pallet_evm_coder_substrate::Config {150		type Event: IsType<<Self as frame_system::Config>::Event> + From<Event<Self>>;151152		type CrossAccountId: CrossAccountId<Self::AccountId>;153154		type EvmAddressMapping: pallet_evm::AddressMapping<Self::AccountId>;155		type EvmBackwardsAddressMapping: EvmBackwardsAddressMapping<Self::AccountId>;156157		type Currency: Currency<Self::AccountId>;158		type CollectionCreationPrice: Get<159			<<Self as Config>::Currency as Currency<Self::AccountId>>::Balance,160		>;161		type TreasuryAccountId: Get<Self::AccountId>;162	}163164	#[pallet::pallet]165	#[pallet::generate_store(pub(super) trait Store)]166	pub struct Pallet<T>(_);167168	#[pallet::event]169	#[pallet::generate_deposit(pub fn deposit_event)]170	pub enum Event<T: Config> {171		/// New collection was created172		///173		/// # Arguments174		///175		/// * collection_id: Globally unique identifier of newly created collection.176		///177		/// * mode: [CollectionMode] converted into u8.178		///179		/// * account_id: Collection owner.180		CollectionCreated(CollectionId, u8, T::AccountId),181182		/// New item was created.183		///184		/// # Arguments185		///186		/// * collection_id: Id of the collection where item was created.187		///188		/// * item_id: Id of an item. Unique within the collection.189		///190		/// * recipient: Owner of newly created item191		///192		/// * amount: Always 1 for NFT193		ItemCreated(CollectionId, TokenId, T::CrossAccountId, u128),194195		/// Collection item was burned.196		///197		/// # Arguments198		///199		/// * collection_id.200		///201		/// * item_id: Identifier of burned NFT.202		///203		/// * owner: which user has destroyed its tokens204		///205		/// * amount: Always 1 for NFT206		ItemDestroyed(CollectionId, TokenId, T::CrossAccountId, u128),207208		/// Item was transferred209		///210		/// * collection_id: Id of collection to which item is belong211		///212		/// * item_id: Id of an item213		///214		/// * sender: Original owner of item215		///216		/// * recipient: New owner of item217		///218		/// * amount: Always 1 for NFT219		Transfer(220			CollectionId,221			TokenId,222			T::CrossAccountId,223			T::CrossAccountId,224			u128,225		),226227		/// * collection_id228		///229		/// * item_id230		///231		/// * sender232		///233		/// * spender234		///235		/// * amount236		Approved(237			CollectionId,238			TokenId,239			T::CrossAccountId,240			T::CrossAccountId,241			u128,242		),243	}244245	#[pallet::error]246	pub enum Error<T> {247		/// This collection does not exist.248		CollectionNotFound,249		/// Sender parameter and item owner must be equal.250		MustBeTokenOwner,251		/// No permission to perform action252		NoPermission,253		/// Collection is not in mint mode.254		PublicMintingNotAllowed,255		/// Address is not in white list.256		AddressNotInAllowlist,257258		/// Collection name can not be longer than 63 char.259		CollectionNameLimitExceeded,260		/// Collection description can not be longer than 255 char.261		CollectionDescriptionLimitExceeded,262		/// Token prefix can not be longer than 15 char.263		CollectionTokenPrefixLimitExceeded,264		/// Total collections bound exceeded.265		TotalCollectionsLimitExceeded,266		/// variable_data exceeded data limit.267		TokenVariableDataLimitExceeded,268269		/// Collection settings not allowing items transferring270		TransferNotAllowed,271		/// Account token limit exceeded per collection272		AccountTokenLimitExceeded,273		/// Collection token limit exceeded274		CollectionTokenLimitExceeded,275		/// Metadata flag frozen276		MetadataFlagFrozen,277278		/// Item not exists.279		TokenNotFound,280		/// Item balance not enough.281		TokenValueTooLow,282		/// Requested value more than approved.283		TokenValueNotEnough,284		/// Tried to approve more than owned285		CantApproveMoreThanOwned,286287		/// Can't transfer tokens to ethereum zero address288		AddressIsZero,289		/// Target collection doesn't supports this operation290		UnsupportedOperation,291	}292293	#[pallet::storage]294	pub type CreatedCollectionCount<T> = StorageValue<Value = CollectionId, QueryKind = ValueQuery>;295	#[pallet::storage]296	pub type DestroyedCollectionCount<T> =297		StorageValue<Value = CollectionId, QueryKind = ValueQuery>;298299	/// Collection info300	#[pallet::storage]301	pub type CollectionById<T> = StorageMap<302		Hasher = Blake2_128Concat,303		Key = CollectionId,304		Value = Collection<T>,305		QueryKind = OptionQuery,306	>;307308	/// List of collection admins309	#[pallet::storage]310	pub type IsAdmin<T: Config> = StorageNMap<311		Key = (312			Key<Blake2_128Concat, CollectionId>,313			Key<Blake2_128Concat, T::AccountId>,314		),315		Value = bool,316		QueryKind = ValueQuery,317	>;318319	/// Allowlisted collection users320	#[pallet::storage]321	pub type Allowlist<T: Config> = StorageNMap<322		Key = (323			Key<Blake2_128Concat, CollectionId>,324			Key<Blake2_128Concat, T::AccountId>,325		),326		Value = bool,327		QueryKind = ValueQuery,328	>;329}330331impl<T: Config> Pallet<T> {332	/// Ethereum receiver 0x0000000000000000000000000000000000000000 is reserved, and shouldn't own tokens333	pub fn ensure_correct_receiver(receiver: &T::CrossAccountId) -> DispatchResult {334		ensure!(335			&T::CrossAccountId::from_eth(H160([0; 20])) != receiver,336			<Error<T>>::AddressIsZero337		);338		Ok(())339	}340}341342impl<T: Config> Pallet<T> {343	pub fn init_collection(data: Collection<T>) -> Result<CollectionId, DispatchError> {344		{345			ensure!(346				data.name.len() <= MAX_COLLECTION_NAME_LENGTH,347				Error::<T>::CollectionNameLimitExceeded348			);349			ensure!(350				data.description.len() <= MAX_COLLECTION_DESCRIPTION_LENGTH,351				Error::<T>::CollectionDescriptionLimitExceeded352			);353			ensure!(354				data.token_prefix.len() <= MAX_TOKEN_PREFIX_LENGTH,355				Error::<T>::CollectionTokenPrefixLimitExceeded356			);357		}358359		let created_count = <CreatedCollectionCount<T>>::get()360			.0361			.checked_add(1)362			.ok_or(ArithmeticError::Overflow)?;363		let destroyed_count = <DestroyedCollectionCount<T>>::get().0;364		let id = CollectionId(created_count);365366		// bound Total number of collections367		ensure!(368			created_count - destroyed_count < COLLECTION_NUMBER_LIMIT,369			<Error<T>>::TotalCollectionsLimitExceeded370		);371372		// =========373374		// Take a (non-refundable) deposit of collection creation375		{376			let mut imbalance =377				<<<T as Config>::Currency as Currency<T::AccountId>>::PositiveImbalance>::zero();378			imbalance.subsume(379				<<T as Config>::Currency as Currency<T::AccountId>>::deposit_creating(380					&T::TreasuryAccountId::get(),381					T::CollectionCreationPrice::get(),382				),383			);384			<T as Config>::Currency::settle(385				&data.owner,386				imbalance,387				WithdrawReasons::TRANSFER,388				ExistenceRequirement::KeepAlive,389			)390			.map_err(|_| Error::<T>::NoPermission)?;391		}392393		<CreatedCollectionCount<T>>::put(created_count);394		<Pallet<T>>::deposit_event(Event::CollectionCreated(395			id,396			data.mode.id(),397			data.owner.clone(),398		));399		<CollectionById<T>>::insert(id, data);400		Ok(id)401	}402403	pub fn destroy_collection(404		collection: CollectionHandle<T>,405		sender: &T::CrossAccountId,406	) -> DispatchResult {407		if !collection.limits.owner_can_destroy {408			fail!(Error::<T>::NoPermission);409		}410		collection.check_is_owner(&sender)?;411412		let destroyed_collections = <DestroyedCollectionCount<T>>::get()413			.0414			.checked_add(1)415			.ok_or(ArithmeticError::Overflow)?;416417		// =========418419		<DestroyedCollectionCount<T>>::put(destroyed_collections);420		<CollectionById<T>>::remove(collection.id);421		<IsAdmin<T>>::remove_prefix((collection.id,), None);422		<Allowlist<T>>::remove_prefix((collection.id,), None);423		Ok(())424	}425426	pub fn toggle_allowlist(427		collection: &CollectionHandle<T>,428		sender: &T::CrossAccountId,429		user: &T::CrossAccountId,430		allowed: bool,431	) -> DispatchResult {432		collection.check_is_owner_or_admin(&sender)?;433434		// =========435436		if allowed {437			<Allowlist<T>>::insert((collection.id, user.as_sub()), true);438		} else {439			<Allowlist<T>>::remove((collection.id, user.as_sub()));440		}441442		Ok(())443	}444}445446#[macro_export]447macro_rules! unsupported {448	() => {449		Err(<Error<T>>::UnsupportedOperation.into())450	};451}452453/// Worst cases454pub trait CommonWeightInfo {455	fn create_item() -> Weight;456	fn create_multiple_items(amount: u32) -> Weight;457	fn burn_item() -> Weight;458	fn transfer() -> Weight;459	fn approve() -> Weight;460	fn transfer_from() -> Weight;461	fn set_variable_metadata(bytes: u32) -> Weight;462}463464pub trait CommonCollectionOperations<T: Config> {465	fn create_item(466		&self,467		sender: T::CrossAccountId,468		to: T::CrossAccountId,469		data: CreateItemData,470	) -> DispatchResultWithPostInfo;471	fn create_multiple_items(472		&self,473		sender: T::CrossAccountId,474		to: T::CrossAccountId,475		data: Vec<CreateItemData>,476	) -> DispatchResultWithPostInfo;477	fn burn_item(478		&self,479		sender: T::CrossAccountId,480		token: TokenId,481		amount: u128,482	) -> DispatchResultWithPostInfo;483484	fn transfer(485		&self,486		sender: T::CrossAccountId,487		to: T::CrossAccountId,488		token: TokenId,489		amount: u128,490	) -> DispatchResultWithPostInfo;491	fn approve(492		&self,493		sender: T::CrossAccountId,494		spender: T::CrossAccountId,495		token: TokenId,496		amount: u128,497	) -> DispatchResultWithPostInfo;498	fn transfer_from(499		&self,500		sender: T::CrossAccountId,501		from: T::CrossAccountId,502		to: T::CrossAccountId,503		token: TokenId,504		amount: u128,505	) -> DispatchResultWithPostInfo;506507	fn set_variable_metadata(508		&self,509		sender: T::CrossAccountId,510		token: TokenId,511		data: Vec<u8>,512	) -> DispatchResultWithPostInfo;513514	fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId>;515	fn token_exists(&self, token: TokenId) -> bool;516	fn last_token_id(&self) -> TokenId;517518	fn token_owner(&self, token: TokenId) -> T::CrossAccountId;519	fn const_metadata(&self, token: TokenId) -> Vec<u8>;520	fn variable_metadata(&self, token: TokenId) -> Vec<u8>;521522	/// How many tokens collection contains (Applicable to nonfungible/refungible)523	fn collection_tokens(&self) -> u32;524	/// Amount of different tokens account has (Applicable to nonfungible/refungible)525	fn account_balance(&self, account: T::CrossAccountId) -> u32;526	/// Amount of specific token account have (Applicable to fungible/refungible)527	fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128;528	fn allowance(529		&self,530		sender: T::CrossAccountId,531		spender: T::CrossAccountId,532		token: TokenId,533	) -> u128;534}535536// Flexible enough for implementing CommonCollectionOperations537pub fn with_weight(res: DispatchResult, weight: Weight) -> DispatchResultWithPostInfo {538	let post_info = PostDispatchInfo {539		actual_weight: Some(weight),540		pays_fee: Pays::Yes,541	};542	match res {543		Ok(()) => Ok(post_info),544		Err(error) => Err(DispatchErrorWithPostInfo { post_info, error }),545	}546}