git.delta.rocks / unique-network / refs/commits / b2c3a621a5a4

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	COLLECTION_ADMINS_LIMIT, MetaUpdatePermission, Pays, PostDispatchInfo, TokenId, Weight,15	WithdrawReasons,16};17pub use pallet::*;18use sp_core::H160;19use sp_runtime::{ArithmeticError, DispatchError, DispatchResult};20pub mod account;21#[cfg(feature = "runtime-benchmarks")]22pub mod benchmarking;23pub mod erc;24pub mod eth;2526#[must_use = "Should call submit_logs or save, otherwise some data will be lost for evm side"]27pub struct CollectionHandle<T: Config> {28	pub id: CollectionId,29	collection: Collection<T>,30	pub recorder: pallet_evm_coder_substrate::SubstrateRecorder<T>,31}32impl<T: Config> CollectionHandle<T> {33	pub fn new_with_gas_limit(id: CollectionId, gas_limit: u64) -> Option<Self> {34		<CollectionById<T>>::get(id).map(|collection| Self {35			id,36			collection,37			recorder: pallet_evm_coder_substrate::SubstrateRecorder::new(38				eth::collection_id_to_address(id),39				gas_limit,40			),41		})42	}43	pub fn new(id: CollectionId) -> Option<Self> {44		Self::new_with_gas_limit(id, u64::MAX)45	}46	pub fn try_get(id: CollectionId) -> Result<Self, DispatchError> {47		Ok(Self::new(id).ok_or_else(|| <Error<T>>::CollectionNotFound)?)48	}49	pub fn log(&self, log: impl evm_coder::ToLog) -> DispatchResult {50		self.recorder.log_sub(log)51	}52	pub fn log_infallible(&self, log: impl evm_coder::ToLog) {53		self.recorder.log_infallible(log)54	}55	#[allow(dead_code)]56	fn consume_gas(&self, gas: u64) -> DispatchResult {57		self.recorder.consume_gas_sub(gas)58	}59	pub fn consume_sload(&self) -> DispatchResult {60		self.recorder.consume_sload_sub()61	}62	pub fn consume_sstores(&self, amount: usize) -> DispatchResult {63		self.recorder.consume_sstores_sub(amount)64	}65	pub fn consume_sstore(&self) -> DispatchResult {66		self.recorder.consume_sstore_sub()67	}68	pub fn consume_log(&self, topics: usize, data: usize) -> DispatchResult {69		self.recorder.consume_log_sub(topics, data)70	}71	pub fn submit_logs(self) -> DispatchResult {72		self.recorder.submit_logs()73	}74	pub fn save(self) -> DispatchResult {75		self.recorder.submit_logs()?;76		<CollectionById<T>>::insert(self.id, self.collection);77		Ok(())78	}79}80impl<T: Config> Deref for CollectionHandle<T> {81	type Target = Collection<T>;8283	fn deref(&self) -> &Self::Target {84		&self.collection85	}86}8788impl<T: Config> DerefMut for CollectionHandle<T> {89	fn deref_mut(&mut self) -> &mut Self::Target {90		&mut self.collection91	}92}9394impl<T: Config> CollectionHandle<T> {95	pub fn check_is_owner(&self, subject: &T::CrossAccountId) -> DispatchResult {96		ensure!(*subject.as_sub() == self.owner, <Error<T>>::NoPermission);97		Ok(())98	}99	pub fn is_owner_or_admin(&self, subject: &T::CrossAccountId) -> Result<bool, DispatchError> {100		self.consume_sload()?;101102		Ok(*subject.as_sub() == self.owner || <IsAdmin<T>>::get((self.id, subject)))103	}104	pub fn check_is_owner_or_admin(&self, subject: &T::CrossAccountId) -> DispatchResult {105		ensure!(self.is_owner_or_admin(subject)?, <Error<T>>::NoPermission);106		Ok(())107	}108	pub fn ignores_allowance(&self, user: &T::CrossAccountId) -> Result<bool, DispatchError> {109		Ok(self.limits.owner_can_transfer() && self.is_owner_or_admin(user)?)110	}111	pub fn ignores_owned_amount(&self, user: &T::CrossAccountId) -> Result<bool, DispatchError> {112		Ok(self.limits.owner_can_transfer() && self.is_owner_or_admin(user)?)113	}114	pub fn check_allowlist(&self, user: &T::CrossAccountId) -> DispatchResult {115		self.consume_sload()?;116117		ensure!(118			<Allowlist<T>>::get((self.id, user)),119			<Error<T>>::AddressNotInAllowlist120		);121		Ok(())122	}123124	pub fn check_can_update_meta(125		&self,126		subject: &T::CrossAccountId,127		item_owner: &T::CrossAccountId,128	) -> DispatchResult {129		match self.meta_update_permission {130			MetaUpdatePermission::ItemOwner => {131				ensure!(subject == item_owner, <Error<T>>::NoPermission);132				Ok(())133			}134			MetaUpdatePermission::Admin => self.check_is_owner_or_admin(subject),135			MetaUpdatePermission::None => fail!(<Error<T>>::NoPermission),136		}137	}138}139140#[frame_support::pallet]141pub mod pallet {142	use super::*;143	use frame_support::{Blake2_128Concat, pallet_prelude::*, storage::Key};144	use account::{EvmBackwardsAddressMapping, CrossAccountId};145	use frame_support::traits::Currency;146	use nft_data_structs::TokenId;147	use scale_info::TypeInfo;148149	#[pallet::config]150	pub trait Config: frame_system::Config + pallet_evm_coder_substrate::Config + TypeInfo {151		type Event: IsType<<Self as frame_system::Config>::Event> + From<Event<Self>>;152153		type CrossAccountId: CrossAccountId<Self::AccountId>;154155		type EvmAddressMapping: pallet_evm::AddressMapping<Self::AccountId>;156		type EvmBackwardsAddressMapping: EvmBackwardsAddressMapping<Self::AccountId>;157158		type Currency: Currency<Self::AccountId>;159		type CollectionCreationPrice: Get<160			<<Self as Config>::Currency as Currency<Self::AccountId>>::Balance,161		>;162		type TreasuryAccountId: Get<Self::AccountId>;163	}164165	#[pallet::pallet]166	#[pallet::generate_store(pub(super) trait Store)]167	pub struct Pallet<T>(_);168169	#[pallet::extra_constants]170	impl<T: Config> Pallet<T> {171		pub fn collection_admins_limit() -> u32 {172			COLLECTION_ADMINS_LIMIT173		}174	}175176	#[pallet::event]177	#[pallet::generate_deposit(pub fn deposit_event)]178	pub enum Event<T: Config> {179		/// New collection was created180		///181		/// # Arguments182		///183		/// * collection_id: Globally unique identifier of newly created collection.184		///185		/// * mode: [CollectionMode] converted into u8.186		///187		/// * account_id: Collection owner.188		CollectionCreated(CollectionId, u8, T::AccountId),189190		/// New item was created.191		///192		/// # Arguments193		///194		/// * collection_id: Id of the collection where item was created.195		///196		/// * item_id: Id of an item. Unique within the collection.197		///198		/// * recipient: Owner of newly created item199		///200		/// * amount: Always 1 for NFT201		ItemCreated(CollectionId, TokenId, T::CrossAccountId, u128),202203		/// Collection item was burned.204		///205		/// # Arguments206		///207		/// * collection_id.208		///209		/// * item_id: Identifier of burned NFT.210		///211		/// * owner: which user has destroyed its tokens212		///213		/// * amount: Always 1 for NFT214		ItemDestroyed(CollectionId, TokenId, T::CrossAccountId, u128),215216		/// Item was transferred217		///218		/// * collection_id: Id of collection to which item is belong219		///220		/// * item_id: Id of an item221		///222		/// * sender: Original owner of item223		///224		/// * recipient: New owner of item225		///226		/// * amount: Always 1 for NFT227		Transfer(228			CollectionId,229			TokenId,230			T::CrossAccountId,231			T::CrossAccountId,232			u128,233		),234235		/// * collection_id236		///237		/// * item_id238		///239		/// * sender240		///241		/// * spender242		///243		/// * amount244		Approved(245			CollectionId,246			TokenId,247			T::CrossAccountId,248			T::CrossAccountId,249			u128,250		),251	}252253	#[pallet::error]254	pub enum Error<T> {255		/// This collection does not exist.256		CollectionNotFound,257		/// Sender parameter and item owner must be equal.258		MustBeTokenOwner,259		/// No permission to perform action260		NoPermission,261		/// Collection is not in mint mode.262		PublicMintingNotAllowed,263		/// Address is not in white list.264		AddressNotInAllowlist,265266		/// Collection name can not be longer than 63 char.267		CollectionNameLimitExceeded,268		/// Collection description can not be longer than 255 char.269		CollectionDescriptionLimitExceeded,270		/// Token prefix can not be longer than 15 char.271		CollectionTokenPrefixLimitExceeded,272		/// Total collections bound exceeded.273		TotalCollectionsLimitExceeded,274		/// variable_data exceeded data limit.275		TokenVariableDataLimitExceeded,276		/// Exceeded max admin amount277		CollectionAdminAmountExceeded,278279		/// Collection settings not allowing items transferring280		TransferNotAllowed,281		/// Account token limit exceeded per collection282		AccountTokenLimitExceeded,283		/// Collection token limit exceeded284		CollectionTokenLimitExceeded,285		/// Metadata flag frozen286		MetadataFlagFrozen,287288		/// Item not exists.289		TokenNotFound,290		/// Item balance not enough.291		TokenValueTooLow,292		/// Requested value more than approved.293		TokenValueNotEnough,294		/// Tried to approve more than owned295		CantApproveMoreThanOwned,296297		/// Can't transfer tokens to ethereum zero address298		AddressIsZero,299		/// Target collection doesn't supports this operation300		UnsupportedOperation,301	}302303	#[pallet::storage]304	pub type CreatedCollectionCount<T> = StorageValue<Value = CollectionId, QueryKind = ValueQuery>;305	#[pallet::storage]306	pub type DestroyedCollectionCount<T> =307		StorageValue<Value = CollectionId, QueryKind = ValueQuery>;308309	/// Collection info310	#[pallet::storage]311	pub type CollectionById<T> = StorageMap<312		Hasher = Blake2_128Concat,313		Key = CollectionId,314		Value = Collection<T>,315		QueryKind = OptionQuery,316	>;317318	#[pallet::storage]319	pub type AdminAmount<T> = StorageMap<320		Hasher = Blake2_128Concat,321		Key = CollectionId,322		Value = u32,323		QueryKind = ValueQuery,324	>;325326	/// List of collection admins327	#[pallet::storage]328	pub type IsAdmin<T: Config> = StorageNMap<329		Key = (330			Key<Blake2_128Concat, CollectionId>,331			Key<Blake2_128Concat, T::CrossAccountId>,332		),333		Value = bool,334		QueryKind = ValueQuery,335	>;336337	/// Allowlisted collection users338	#[pallet::storage]339	pub type Allowlist<T: Config> = StorageNMap<340		Key = (341			Key<Blake2_128Concat, CollectionId>,342			Key<Blake2_128Concat, T::CrossAccountId>,343		),344		Value = bool,345		QueryKind = ValueQuery,346	>;347}348349impl<T: Config> Pallet<T> {350	/// Ethereum receiver 0x0000000000000000000000000000000000000000 is reserved, and shouldn't own tokens351	pub fn ensure_correct_receiver(receiver: &T::CrossAccountId) -> DispatchResult {352		ensure!(353			&T::CrossAccountId::from_eth(H160([0; 20])) != receiver,354			<Error<T>>::AddressIsZero355		);356		Ok(())357	}358}359360impl<T: Config> Pallet<T> {361	pub fn init_collection(data: Collection<T>) -> Result<CollectionId, DispatchError> {362		{363			ensure!(364				data.name.len() <= MAX_COLLECTION_NAME_LENGTH,365				Error::<T>::CollectionNameLimitExceeded366			);367			ensure!(368				data.description.len() <= MAX_COLLECTION_DESCRIPTION_LENGTH,369				Error::<T>::CollectionDescriptionLimitExceeded370			);371			ensure!(372				data.token_prefix.len() <= MAX_TOKEN_PREFIX_LENGTH,373				Error::<T>::CollectionTokenPrefixLimitExceeded374			);375		}376377		let created_count = <CreatedCollectionCount<T>>::get()378			.0379			.checked_add(1)380			.ok_or(ArithmeticError::Overflow)?;381		let destroyed_count = <DestroyedCollectionCount<T>>::get().0;382		let id = CollectionId(created_count);383384		// bound Total number of collections385		ensure!(386			created_count - destroyed_count < COLLECTION_NUMBER_LIMIT,387			<Error<T>>::TotalCollectionsLimitExceeded388		);389390		// =========391392		// Take a (non-refundable) deposit of collection creation393		{394			let mut imbalance =395				<<<T as Config>::Currency as Currency<T::AccountId>>::PositiveImbalance>::zero();396			imbalance.subsume(397				<<T as Config>::Currency as Currency<T::AccountId>>::deposit_creating(398					&T::TreasuryAccountId::get(),399					T::CollectionCreationPrice::get(),400				),401			);402			<T as Config>::Currency::settle(403				&data.owner,404				imbalance,405				WithdrawReasons::TRANSFER,406				ExistenceRequirement::KeepAlive,407			)408			.map_err(|_| Error::<T>::NoPermission)?;409		}410411		<CreatedCollectionCount<T>>::put(created_count);412		<Pallet<T>>::deposit_event(Event::CollectionCreated(413			id,414			data.mode.id(),415			data.owner.clone(),416		));417		<CollectionById<T>>::insert(id, data);418		Ok(id)419	}420421	pub fn destroy_collection(422		collection: CollectionHandle<T>,423		sender: &T::CrossAccountId,424	) -> DispatchResult {425		ensure!(426			collection.limits.owner_can_destroy(),427			<Error<T>>::NoPermission,428		);429		collection.check_is_owner(&sender)?;430431		let destroyed_collections = <DestroyedCollectionCount<T>>::get()432			.0433			.checked_add(1)434			.ok_or(ArithmeticError::Overflow)?;435436		// =========437438		<DestroyedCollectionCount<T>>::put(destroyed_collections);439		<CollectionById<T>>::remove(collection.id);440		<AdminAmount<T>>::remove(collection.id);441		<IsAdmin<T>>::remove_prefix((collection.id,), None);442		<Allowlist<T>>::remove_prefix((collection.id,), None);443		Ok(())444	}445446	pub fn toggle_allowlist(447		collection: &CollectionHandle<T>,448		sender: &T::CrossAccountId,449		user: &T::CrossAccountId,450		allowed: bool,451	) -> DispatchResult {452		collection.check_is_owner_or_admin(&sender)?;453454		// =========455456		if allowed {457			<Allowlist<T>>::insert((collection.id, user), true);458		} else {459			<Allowlist<T>>::remove((collection.id, user));460		}461462		Ok(())463	}464465	pub fn toggle_admin(466		collection: &CollectionHandle<T>,467		sender: &T::CrossAccountId,468		user: &T::CrossAccountId,469		admin: bool,470	) -> DispatchResult {471		collection.check_is_owner_or_admin(&sender)?;472473		let was_admin = <IsAdmin<T>>::get((collection.id, user));474		if was_admin == admin {475			return Ok(());476		}477		let amount = <AdminAmount<T>>::get(collection.id);478479		if admin {480			let amount = amount481				.checked_add(1)482				.ok_or(<Error<T>>::CollectionAdminAmountExceeded)?;483			ensure!(484				amount <= Self::collection_admins_limit(),485				<Error<T>>::CollectionAdminAmountExceeded,486			);487488			// =========489490			<AdminAmount<T>>::insert(collection.id, amount);491			<IsAdmin<T>>::insert((collection.id, user), true);492		} else {493			<AdminAmount<T>>::insert(collection.id, amount.saturating_sub(1));494			<IsAdmin<T>>::remove((collection.id, user));495		}496497		Ok(())498	}499}500501#[macro_export]502macro_rules! unsupported {503	() => {504		Err(<Error<T>>::UnsupportedOperation.into())505	};506}507508/// Worst cases509pub trait CommonWeightInfo {510	fn create_item() -> Weight;511	fn create_multiple_items(amount: u32) -> Weight;512	fn burn_item() -> Weight;513	fn transfer() -> Weight;514	fn approve() -> Weight;515	fn transfer_from() -> Weight;516	fn burn_from() -> Weight;517	fn set_variable_metadata(bytes: u32) -> Weight;518}519520pub trait CommonCollectionOperations<T: Config> {521	fn create_item(522		&self,523		sender: T::CrossAccountId,524		to: T::CrossAccountId,525		data: CreateItemData,526	) -> DispatchResultWithPostInfo;527	fn create_multiple_items(528		&self,529		sender: T::CrossAccountId,530		to: T::CrossAccountId,531		data: Vec<CreateItemData>,532	) -> DispatchResultWithPostInfo;533	fn burn_item(534		&self,535		sender: T::CrossAccountId,536		token: TokenId,537		amount: u128,538	) -> DispatchResultWithPostInfo;539540	fn transfer(541		&self,542		sender: T::CrossAccountId,543		to: T::CrossAccountId,544		token: TokenId,545		amount: u128,546	) -> DispatchResultWithPostInfo;547	fn approve(548		&self,549		sender: T::CrossAccountId,550		spender: T::CrossAccountId,551		token: TokenId,552		amount: u128,553	) -> DispatchResultWithPostInfo;554	fn transfer_from(555		&self,556		sender: T::CrossAccountId,557		from: T::CrossAccountId,558		to: T::CrossAccountId,559		token: TokenId,560		amount: u128,561	) -> DispatchResultWithPostInfo;562	fn burn_from(563		&self,564		sender: T::CrossAccountId,565		from: T::CrossAccountId,566		token: TokenId,567		amount: u128,568	) -> DispatchResultWithPostInfo;569570	fn set_variable_metadata(571		&self,572		sender: T::CrossAccountId,573		token: TokenId,574		data: Vec<u8>,575	) -> DispatchResultWithPostInfo;576577	fn account_tokens(&self, account: T::CrossAccountId) -> Vec<TokenId>;578	fn token_exists(&self, token: TokenId) -> bool;579	fn last_token_id(&self) -> TokenId;580581	fn token_owner(&self, token: TokenId) -> T::CrossAccountId;582	fn const_metadata(&self, token: TokenId) -> Vec<u8>;583	fn variable_metadata(&self, token: TokenId) -> Vec<u8>;584585	/// How many tokens collection contains (Applicable to nonfungible/refungible)586	fn collection_tokens(&self) -> u32;587	/// Amount of different tokens account has (Applicable to nonfungible/refungible)588	fn account_balance(&self, account: T::CrossAccountId) -> u32;589	/// Amount of specific token account have (Applicable to fungible/refungible)590	fn balance(&self, account: T::CrossAccountId, token: TokenId) -> u128;591	fn allowance(592		&self,593		sender: T::CrossAccountId,594		spender: T::CrossAccountId,595		token: TokenId,596	) -> u128;597}598599// Flexible enough for implementing CommonCollectionOperations600pub fn with_weight(res: DispatchResult, weight: Weight) -> DispatchResultWithPostInfo {601	let post_info = PostDispatchInfo {602		actual_weight: Some(weight),603		pays_fee: Pays::Yes,604	};605	match res {606		Ok(()) => Ok(post_info),607		Err(error) => Err(DispatchErrorWithPostInfo { post_info, error }),608	}609}