git.delta.rocks / unique-network / refs/commits / fef3ff190e76

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//! # Refungible Pallet EVM API for tokens18//!19//! Provides ERC-721 standart support implementation and EVM API for unique extensions for Refungible Pallet.20//! Method implementations are mostly doing parameter conversion and calling Refungible Pallet methods.2122extern crate alloc;2324use core::{25	char::{REPLACEMENT_CHARACTER, decode_utf16},26	convert::TryInto,27};28use evm_coder::{29	abi::AbiType, ToLog, execution::*, generate_stubgen, solidity, solidity_interface, types::*,30	weight,31};32use frame_support::{BoundedBTreeMap, BoundedVec};33use pallet_common::{34	CollectionHandle, CollectionPropertyPermissions, CommonCollectionOperations,35	erc::{CommonEvmHandler, CollectionCall, static_property::key},36	eth::{Property as PropertyStruct, EthCrossAccount},37	Error as CommonError,38};39use pallet_evm::{account::CrossAccountId, PrecompileHandle};40use pallet_evm_coder_substrate::{call, dispatch_to_evm};41use pallet_structure::{SelfWeightOf as StructureWeight, weights::WeightInfo as _};42use sp_core::{H160, Get};43use sp_std::{collections::btree_map::BTreeMap, vec::Vec, vec};44use up_data_structs::{45	CollectionId, CollectionPropertiesVec, mapping::TokenAddressMapping, Property, PropertyKey,46	PropertyKeyPermission, PropertyPermission, TokenId,47};4849use crate::{50	AccountBalance, Balance, Config, CreateItemData, Pallet, RefungibleHandle, SelfWeightOf,51	TokenProperties, TokensMinted, TotalSupply, weights::WeightInfo,52};5354pub const ADDRESS_FOR_PARTIALLY_OWNED_TOKENS: H160 = H160::repeat_byte(0xff);5556/// @title A contract that allows to set and delete token properties and change token property permissions.57#[solidity_interface(name = TokenProperties)]58impl<T: Config> RefungibleHandle<T> {59	/// @notice Set permissions for token property.60	/// @dev Throws error if `msg.sender` is not admin or owner of the collection.61	/// @param key Property key.62	/// @param isMutable Permission to mutate property.63	/// @param collectionAdmin Permission to mutate property by collection admin if property is mutable.64	/// @param tokenOwner Permission to mutate property by token owner if property is mutable.65	#[weight(<SelfWeightOf<T>>::set_token_property_permissions(1))]66	#[solidity(hide)]67	fn set_token_property_permission(68		&mut self,69		caller: caller,70		key: string,71		is_mutable: bool,72		collection_admin: bool,73		token_owner: bool,74	) -> Result<()> {75		let caller = T::CrossAccountId::from_eth(caller);76		<Pallet<T>>::set_token_property_permissions(77			self,78			&caller,79			vec![PropertyKeyPermission {80				key: <Vec<u8>>::from(key)81					.try_into()82					.map_err(|_| "too long key")?,83				permission: PropertyPermission {84					mutable: is_mutable,85					collection_admin,86					token_owner,87				},88			}],89		)90		.map_err(dispatch_to_evm::<T>)91	}9293	/// @notice Set permissions for token property.94	/// @dev Throws error if `msg.sender` is not admin or owner of the collection.95	/// @param permissions Permissions for keys.96	#[weight(<SelfWeightOf<T>>::set_token_property_permissions(permissions.len() as u32))]97	fn set_token_property_permissions(98		&mut self,99		caller: caller,100		permissions: Vec<pallet_common::eth::TokenPropertyPermission>,101	) -> Result<()> {102		let caller = T::CrossAccountId::from_eth(caller);103		let perms = pallet_common::eth::TokenPropertyPermission::into_property_key_permissions(104			permissions,105		)?;106107		<Pallet<T>>::set_token_property_permissions(self, &caller, perms)108			.map_err(dispatch_to_evm::<T>)109	}110111	/// @notice Get permissions for token properties.112	fn token_property_permissions(113		&self,114	) -> Result<Vec<pallet_common::eth::TokenPropertyPermission>> {115		let perms = <Pallet<T>>::token_property_permission(self.id);116		Ok(perms117			.into_iter()118			.map(pallet_common::eth::TokenPropertyPermission::from)119			.collect())120	}121122	/// @notice Set token property value.123	/// @dev Throws error if `msg.sender` has no permission to edit the property.124	/// @param tokenId ID of the token.125	/// @param key Property key.126	/// @param value Property value.127	#[solidity(hide)]128	#[weight(<SelfWeightOf<T>>::set_token_properties(1))]129	fn set_property(130		&mut self,131		caller: caller,132		token_id: uint256,133		key: string,134		value: bytes,135	) -> Result<()> {136		let caller = T::CrossAccountId::from_eth(caller);137		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;138		let key = <Vec<u8>>::from(key)139			.try_into()140			.map_err(|_| "key too long")?;141		let value = value.0.try_into().map_err(|_| "value too long")?;142143		let nesting_budget = self144			.recorder145			.weight_calls_budget(<StructureWeight<T>>::find_parent());146147		<Pallet<T>>::set_token_property(148			self,149			&caller,150			TokenId(token_id),151			Property { key, value },152			&nesting_budget,153		)154		.map_err(dispatch_to_evm::<T>)155	}156157	/// @notice Set token properties value.158	/// @dev Throws error if `msg.sender` has no permission to edit the property.159	/// @param tokenId ID of the token.160	/// @param properties settable properties161	#[weight(<SelfWeightOf<T>>::set_token_properties(properties.len() as u32))]162	fn set_properties(163		&mut self,164		caller: caller,165		token_id: uint256,166		properties: Vec<PropertyStruct>,167	) -> Result<()> {168		let caller = T::CrossAccountId::from_eth(caller);169		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;170171		let nesting_budget = self172			.recorder173			.weight_calls_budget(<StructureWeight<T>>::find_parent());174175		let properties = properties176			.into_iter()177			.map(|PropertyStruct { key, value }| {178				let key = <Vec<u8>>::from(key)179					.try_into()180					.map_err(|_| "key too large")?;181182				let value = value.0.try_into().map_err(|_| "value too large")?;183184				Ok(Property { key, value })185			})186			.collect::<Result<Vec<_>>>()?;187188		<Pallet<T>>::set_token_properties(189			self,190			&caller,191			TokenId(token_id),192			properties.into_iter(),193			false,194			&nesting_budget,195		)196		.map_err(dispatch_to_evm::<T>)197	}198199	/// @notice Delete token property value.200	/// @dev Throws error if `msg.sender` has no permission to edit the property.201	/// @param tokenId ID of the token.202	/// @param key Property key.203	#[solidity(hide)]204	#[weight(<SelfWeightOf<T>>::delete_token_properties(1))]205	fn delete_property(&mut self, token_id: uint256, caller: caller, key: string) -> Result<()> {206		let caller = T::CrossAccountId::from_eth(caller);207		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;208		let key = <Vec<u8>>::from(key)209			.try_into()210			.map_err(|_| "key too long")?;211212		let nesting_budget = self213			.recorder214			.weight_calls_budget(<StructureWeight<T>>::find_parent());215216		<Pallet<T>>::delete_token_property(self, &caller, TokenId(token_id), key, &nesting_budget)217			.map_err(dispatch_to_evm::<T>)218	}219220	/// @notice Delete token properties value.221	/// @dev Throws error if `msg.sender` has no permission to edit the property.222	/// @param tokenId ID of the token.223	/// @param keys Properties key.224	#[weight(<SelfWeightOf<T>>::delete_token_properties(keys.len() as u32))]225	fn delete_properties(226		&mut self,227		token_id: uint256,228		caller: caller,229		keys: Vec<string>,230	) -> Result<()> {231		let caller = T::CrossAccountId::from_eth(caller);232		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;233		let keys = keys234			.into_iter()235			.map(|k| Ok(<Vec<u8>>::from(k).try_into().map_err(|_| "key too long")?))236			.collect::<Result<Vec<_>>>()?;237238		let nesting_budget = self239			.recorder240			.weight_calls_budget(<StructureWeight<T>>::find_parent());241242		<Pallet<T>>::delete_token_properties(243			self,244			&caller,245			TokenId(token_id),246			keys.into_iter(),247			&nesting_budget,248		)249		.map_err(dispatch_to_evm::<T>)250	}251252	/// @notice Get token property value.253	/// @dev Throws error if key not found254	/// @param tokenId ID of the token.255	/// @param key Property key.256	/// @return Property value bytes257	fn property(&self, token_id: uint256, key: string) -> Result<bytes> {258		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;259		let key = <Vec<u8>>::from(key)260			.try_into()261			.map_err(|_| "key too long")?;262263		let props = <TokenProperties<T>>::get((self.id, token_id));264		let prop = props.get(&key).ok_or("key not found")?;265266		Ok(prop.to_vec().into())267	}268}269270#[derive(ToLog)]271pub enum ERC721Events {272	/// @dev This event emits when NFTs are created (`from` == 0) and destroyed273	///  (`to` == 0). Exception: during contract creation, any number of RFTs274	///  may be created and assigned without emitting Transfer.275	Transfer {276		#[indexed]277		from: address,278		#[indexed]279		to: address,280		#[indexed]281		token_id: uint256,282	},283	/// @dev Not supported284	Approval {285		#[indexed]286		owner: address,287		#[indexed]288		approved: address,289		#[indexed]290		token_id: uint256,291	},292	/// @dev Not supported293	#[allow(dead_code)]294	ApprovalForAll {295		#[indexed]296		owner: address,297		#[indexed]298		operator: address,299		approved: bool,300	},301}302303#[derive(ToLog)]304pub enum ERC721UniqueMintableEvents {305	/// @dev Not supported306	#[allow(dead_code)]307	MintingFinished {},308}309310#[solidity_interface(name = ERC721Metadata)]311impl<T: Config> RefungibleHandle<T>312where313	T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]>,314{315	/// @notice A descriptive name for a collection of NFTs in this contract316	/// @dev real implementation of this function lies in `ERC721UniqueExtensions`317	#[solidity(hide, rename_selector = "name")]318	fn name_proxy(&self) -> Result<string> {319		self.name()320	}321322	/// @notice An abbreviated name for NFTs in this contract323	/// @dev real implementation of this function lies in `ERC721UniqueExtensions`324	#[solidity(hide, rename_selector = "symbol")]325	fn symbol_proxy(&self) -> Result<string> {326		self.symbol()327	}328329	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.330	///331	/// @dev If the token has a `url` property and it is not empty, it is returned.332	///  Else If the collection does not have a property with key `schemaName` or its value is not equal to `ERC721Metadata`, it return an error `tokenURI not set`.333	///  If the collection property `baseURI` is empty or absent, return "" (empty string)334	///  otherwise, if token property `suffix` present and is non-empty, return concatenation of baseURI and suffix335	///  otherwise, return concatenation of `baseURI` and stringified token id (decimal stringifying, without paddings).336	///337	/// @return token's const_metadata338	#[solidity(rename_selector = "tokenURI")]339	fn token_uri(&self, token_id: uint256) -> Result<string> {340		let token_id_u32: u32 = token_id.try_into().map_err(|_| "token id overflow")?;341342		match get_token_property(self, token_id_u32, &key::url()).as_deref() {343			Err(_) | Ok("") => (),344			Ok(url) => {345				return Ok(url.into());346			}347		};348349		let base_uri =350			pallet_common::Pallet::<T>::get_collection_property(self.id, &key::base_uri())351				.map(BoundedVec::into_inner)352				.map(string::from_utf8)353				.transpose()354				.map_err(|e| {355					Error::Revert(alloc::format!(356						"Can not convert value \"baseURI\" to string with error \"{}\"",357						e358					))359				})?;360361		let base_uri = match base_uri.as_deref() {362			None | Some("") => {363				return Ok("".into());364			}365			Some(base_uri) => base_uri.into(),366		};367368		Ok(369			match get_token_property(self, token_id_u32, &key::suffix()).as_deref() {370				Err(_) | Ok("") => base_uri,371				Ok(suffix) => base_uri + suffix,372			},373		)374	}375}376377/// @title ERC-721 Non-Fungible Token Standard, optional enumeration extension378/// @dev See https://eips.ethereum.org/EIPS/eip-721379#[solidity_interface(name = ERC721Enumerable)]380impl<T: Config> RefungibleHandle<T> {381	/// @notice Enumerate valid RFTs382	/// @param index A counter less than `totalSupply()`383	/// @return The token identifier for the `index`th NFT,384	///  (sort order not specified)385	fn token_by_index(&self, index: uint256) -> Result<uint256> {386		Ok(index)387	}388389	/// Not implemented390	fn token_of_owner_by_index(&self, _owner: address, _index: uint256) -> Result<uint256> {391		// TODO: Not implemetable392		Err("not implemented".into())393	}394395	/// @notice Count RFTs tracked by this contract396	/// @return A count of valid RFTs tracked by this contract, where each one of397	///  them has an assigned and queryable owner not equal to the zero address398	fn total_supply(&self) -> Result<uint256> {399		self.consume_store_reads(1)?;400		Ok(<Pallet<T>>::total_supply(self).into())401	}402}403404/// @title ERC-721 Non-Fungible Token Standard405/// @dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md406#[solidity_interface(name = ERC721, events(ERC721Events))]407impl<T: Config> RefungibleHandle<T> {408	/// @notice Count all RFTs assigned to an owner409	/// @dev RFTs assigned to the zero address are considered invalid, and this410	///  function throws for queries about the zero address.411	/// @param owner An address for whom to query the balance412	/// @return The number of RFTs owned by `owner`, possibly zero413	fn balance_of(&self, owner: address) -> Result<uint256> {414		self.consume_store_reads(1)?;415		let owner = T::CrossAccountId::from_eth(owner);416		let balance = <AccountBalance<T>>::get((self.id, owner));417		Ok(balance.into())418	}419420	/// @notice Find the owner of an RFT421	/// @dev RFTs assigned to zero address are considered invalid, and queries422	///  about them do throw.423	///  Returns special 0xffffffffffffffffffffffffffffffffffffffff address for424	///  the tokens that are partially owned.425	/// @param tokenId The identifier for an RFT426	/// @return The address of the owner of the RFT427	fn owner_of(&self, token_id: uint256) -> Result<address> {428		self.consume_store_reads(2)?;429		let token = token_id.try_into()?;430		let owner = <Pallet<T>>::token_owner(self.id, token);431		Ok(owner432			.map(|address| *address.as_eth())433			.unwrap_or_else(|| ADDRESS_FOR_PARTIALLY_OWNED_TOKENS))434	}435436	/// @dev Not implemented437	fn safe_transfer_from_with_data(438		&mut self,439		_from: address,440		_to: address,441		_token_id: uint256,442		_data: bytes,443	) -> Result<void> {444		// TODO: Not implemetable445		Err("not implemented".into())446	}447448	/// @dev Not implemented449	fn safe_transfer_from(450		&mut self,451		_from: address,452		_to: address,453		_token_id: uint256,454	) -> Result<void> {455		// TODO: Not implemetable456		Err("not implemented".into())457	}458459	/// @notice Transfer ownership of an RFT -- THE CALLER IS RESPONSIBLE460	///  TO CONFIRM THAT `to` IS CAPABLE OF RECEIVING NFTS OR ELSE461	///  THEY MAY BE PERMANENTLY LOST462	/// @dev Throws unless `msg.sender` is the current owner or an authorized463	///  operator for this RFT. Throws if `from` is not the current owner. Throws464	///  if `to` is the zero address. Throws if `tokenId` is not a valid RFT.465	///  Throws if RFT pieces have multiple owners.466	/// @param from The current owner of the NFT467	/// @param to The new owner468	/// @param tokenId The NFT to transfer469	#[weight(<SelfWeightOf<T>>::transfer_from_creating_removing())]470	fn transfer_from(471		&mut self,472		caller: caller,473		from: address,474		to: address,475		token_id: uint256,476	) -> Result<void> {477		let caller = T::CrossAccountId::from_eth(caller);478		let from = T::CrossAccountId::from_eth(from);479		let to = T::CrossAccountId::from_eth(to);480		let token = token_id.try_into()?;481		let budget = self482			.recorder483			.weight_calls_budget(<StructureWeight<T>>::find_parent());484485		let balance = balance(&self, token, &from)?;486		ensure_single_owner(&self, token, balance)?;487488		<Pallet<T>>::transfer_from(self, &caller, &from, &to, token, balance, &budget)489			.map_err(dispatch_to_evm::<T>)?;490491		Ok(())492	}493494	/// @dev Not implemented495	fn approve(&mut self, _caller: caller, _approved: address, _token_id: uint256) -> Result<void> {496		Err("not implemented".into())497	}498499	/// @notice Sets or unsets the approval of a given operator.500	///  The `operator` is allowed to transfer all token pieces of the `caller` on their behalf.501	/// @param operator Operator502	/// @param approved Should operator status be granted or revoked?503	#[weight(<SelfWeightOf<T>>::set_allowance_for_all())]504	fn set_approval_for_all(505		&mut self,506		caller: caller,507		operator: address,508		approved: bool,509	) -> Result<void> {510		let caller = T::CrossAccountId::from_eth(caller);511		let operator = T::CrossAccountId::from_eth(operator);512513		<Pallet<T>>::set_allowance_for_all(self, &caller, &operator, approved)514			.map_err(dispatch_to_evm::<T>)?;515		Ok(())516	}517518	/// @dev Not implemented519	fn get_approved(&self, _token_id: uint256) -> Result<address> {520		// TODO: Not implemetable521		Err("not implemented".into())522	}523524	/// @notice Tells whether the given `owner` approves the `operator`.525	#[weight(<SelfWeightOf<T>>::allowance_for_all())]526	fn is_approved_for_all(&self, owner: address, operator: address) -> Result<bool> {527		let owner = T::CrossAccountId::from_eth(owner);528		let operator = T::CrossAccountId::from_eth(operator);529530		Ok(<Pallet<T>>::allowance_for_all(self, &owner, &operator))531	}532533	/// @notice Returns collection helper contract address534	fn collection_helper_address(&self) -> Result<address> {535		Ok(T::ContractAddress::get())536	}537}538539/// Returns amount of pieces of `token` that `owner` have540pub fn balance<T: Config>(541	collection: &RefungibleHandle<T>,542	token: TokenId,543	owner: &T::CrossAccountId,544) -> Result<u128> {545	collection.consume_store_reads(1)?;546	let balance = <Balance<T>>::get((collection.id, token, &owner));547	Ok(balance)548}549550/// Throws if `owner_balance` is lower than total amount of `token` pieces551pub fn ensure_single_owner<T: Config>(552	collection: &RefungibleHandle<T>,553	token: TokenId,554	owner_balance: u128,555) -> Result<()> {556	collection.consume_store_reads(1)?;557	let total_supply = <TotalSupply<T>>::get((collection.id, token));558559	if owner_balance == 0 {560		return Err(dispatch_to_evm::<T>(561			<CommonError<T>>::MustBeTokenOwner.into(),562		));563	}564565	if total_supply != owner_balance {566		return Err("token has multiple owners".into());567	}568	Ok(())569}570571/// @title ERC721 Token that can be irreversibly burned (destroyed).572#[solidity_interface(name = ERC721Burnable)]573impl<T: Config> RefungibleHandle<T> {574	/// @notice Burns a specific ERC721 token.575	/// @dev Throws unless `msg.sender` is the current RFT owner, or an authorized576	///  operator of the current owner.577	/// @param tokenId The RFT to approve578	#[weight(<SelfWeightOf<T>>::burn_item_fully())]579	fn burn(&mut self, caller: caller, token_id: uint256) -> Result<void> {580		let caller = T::CrossAccountId::from_eth(caller);581		let token = token_id.try_into()?;582583		let balance = balance(&self, token, &caller)?;584		ensure_single_owner(&self, token, balance)?;585586		<Pallet<T>>::burn(self, &caller, token, balance).map_err(dispatch_to_evm::<T>)?;587		Ok(())588	}589}590591/// @title ERC721 minting logic.592#[solidity_interface(name = ERC721UniqueMintable, events(ERC721UniqueMintableEvents))]593impl<T: Config> RefungibleHandle<T> {594	fn minting_finished(&self) -> Result<bool> {595		Ok(false)596	}597598	/// @notice Function to mint a token.599	/// @param to The new owner600	/// @return uint256 The id of the newly minted token601	#[weight(<SelfWeightOf<T>>::create_item())]602	fn mint(&mut self, caller: caller, to: address) -> Result<uint256> {603		let token_id: uint256 = <TokensMinted<T>>::get(self.id)604			.checked_add(1)605			.ok_or("item id overflow")?606			.into();607		self.mint_check_id(caller, to, token_id)?;608		Ok(token_id)609	}610611	/// @notice Function to mint a token.612	/// @dev `tokenId` should be obtained with `nextTokenId` method,613	///  unlike standard, you can't specify it manually614	/// @param to The new owner615	/// @param tokenId ID of the minted RFT616	#[solidity(hide, rename_selector = "mint")]617	#[weight(<SelfWeightOf<T>>::create_item())]618	fn mint_check_id(&mut self, caller: caller, to: address, token_id: uint256) -> Result<bool> {619		let caller = T::CrossAccountId::from_eth(caller);620		let to = T::CrossAccountId::from_eth(to);621		let token_id: u32 = token_id.try_into()?;622		let budget = self623			.recorder624			.weight_calls_budget(<StructureWeight<T>>::find_parent());625626		if <TokensMinted<T>>::get(self.id)627			.checked_add(1)628			.ok_or("item id overflow")?629			!= token_id630		{631			return Err("item id should be next".into());632		}633634		let users = [(to.clone(), 1)]635			.into_iter()636			.collect::<BTreeMap<_, _>>()637			.try_into()638			.unwrap();639		<Pallet<T>>::create_item(640			self,641			&caller,642			CreateItemData::<T> {643				users,644				properties: CollectionPropertiesVec::default(),645			},646			&budget,647		)648		.map_err(dispatch_to_evm::<T>)?;649650		Ok(true)651	}652653	/// @notice Function to mint token with the given tokenUri.654	/// @param to The new owner655	/// @param tokenUri Token URI that would be stored in the NFT properties656	/// @return uint256 The id of the newly minted token657	#[solidity(rename_selector = "mintWithTokenURI")]658	#[weight(<SelfWeightOf<T>>::create_item())]659	fn mint_with_token_uri(660		&mut self,661		caller: caller,662		to: address,663		token_uri: string,664	) -> Result<uint256> {665		let token_id: uint256 = <TokensMinted<T>>::get(self.id)666			.checked_add(1)667			.ok_or("item id overflow")?668			.into();669		self.mint_with_token_uri_check_id(caller, to, token_id, token_uri)?;670		Ok(token_id)671	}672673	/// @notice Function to mint token with the given tokenUri.674	/// @dev `tokenId` should be obtained with `nextTokenId` method,675	///  unlike standard, you can't specify it manually676	/// @param to The new owner677	/// @param tokenId ID of the minted RFT678	/// @param tokenUri Token URI that would be stored in the RFT properties679	#[solidity(hide, rename_selector = "mintWithTokenURI")]680	#[weight(<SelfWeightOf<T>>::create_item())]681	fn mint_with_token_uri_check_id(682		&mut self,683		caller: caller,684		to: address,685		token_id: uint256,686		token_uri: string,687	) -> Result<bool> {688		let key = key::url();689		let permission = get_token_permission::<T>(self.id, &key)?;690		if !permission.collection_admin {691			return Err("Operation is not allowed".into());692		}693694		let caller = T::CrossAccountId::from_eth(caller);695		let to = T::CrossAccountId::from_eth(to);696		let token_id: u32 = token_id.try_into().map_err(|_| "amount overflow")?;697		let budget = self698			.recorder699			.weight_calls_budget(<StructureWeight<T>>::find_parent());700701		if <TokensMinted<T>>::get(self.id)702			.checked_add(1)703			.ok_or("item id overflow")?704			!= token_id705		{706			return Err("item id should be next".into());707		}708709		let mut properties = CollectionPropertiesVec::default();710		properties711			.try_push(Property {712				key,713				value: token_uri714					.into_bytes()715					.try_into()716					.map_err(|_| "token uri is too long")?,717			})718			.map_err(|e| Error::Revert(alloc::format!("Can't add property: {:?}", e)))?;719720		let users = [(to.clone(), 1)]721			.into_iter()722			.collect::<BTreeMap<_, _>>()723			.try_into()724			.unwrap();725		<Pallet<T>>::create_item(726			self,727			&caller,728			CreateItemData::<T> { users, properties },729			&budget,730		)731		.map_err(dispatch_to_evm::<T>)?;732		Ok(true)733	}734735	/// @dev Not implemented736	fn finish_minting(&mut self, _caller: caller) -> Result<bool> {737		Err("not implementable".into())738	}739}740741fn get_token_property<T: Config>(742	collection: &CollectionHandle<T>,743	token_id: u32,744	key: &up_data_structs::PropertyKey,745) -> Result<string> {746	collection.consume_store_reads(1)?;747	let properties = <TokenProperties<T>>::try_get((collection.id, token_id))748		.map_err(|_| Error::Revert("Token properties not found".into()))?;749	if let Some(property) = properties.get(key) {750		return Ok(string::from_utf8_lossy(property).into());751	}752753	Err("Property tokenURI not found".into())754}755756fn get_token_permission<T: Config>(757	collection_id: CollectionId,758	key: &PropertyKey,759) -> Result<PropertyPermission> {760	let token_property_permissions = CollectionPropertyPermissions::<T>::try_get(collection_id)761		.map_err(|_| Error::Revert("No permissions for collection".into()))?;762	let a = token_property_permissions763		.get(key)764		.map(Clone::clone)765		.ok_or_else(|| {766			let key = string::from_utf8(key.clone().into_inner()).unwrap_or_default();767			Error::Revert(alloc::format!("No permission for key {}", key))768		})?;769	Ok(a)770}771772/// @title Unique extensions for ERC721.773#[solidity_interface(name = ERC721UniqueExtensions)]774impl<T: Config> RefungibleHandle<T>775where776	T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]>,777{778	/// @notice A descriptive name for a collection of NFTs in this contract779	fn name(&self) -> Result<string> {780		Ok(decode_utf16(self.name.iter().copied())781			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))782			.collect::<string>())783	}784785	/// @notice An abbreviated name for NFTs in this contract786	fn symbol(&self) -> Result<string> {787		Ok(string::from_utf8_lossy(&self.token_prefix).into())788	}789790	/// @notice A description for the collection.791	fn description(&self) -> Result<string> {792		Ok(decode_utf16(self.description.iter().copied())793			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))794			.collect::<string>())795	}796797	/// Returns the owner (in cross format) of the token.798	///799	/// @param tokenId Id for the token.800	fn cross_owner_of(&self, token_id: uint256) -> Result<EthCrossAccount> {801		Self::token_owner(&self, token_id.try_into()?)802			.map(|o| EthCrossAccount::from_sub_cross_account::<T>(&o))803			.ok_or(Error::Revert("key too large".into()))804	}805806	/// Returns the token properties.807	///808	/// @param tokenId Id for the token.809	/// @param keys Properties keys. Empty keys for all propertyes.810	/// @return Vector of properties key/value pairs.811	fn properties(&self, token_id: uint256, keys: Vec<string>) -> Result<Vec<PropertyStruct>> {812		let keys = keys813			.into_iter()814			.map(|key| {815				<Vec<u8>>::from(key)816					.try_into()817					.map_err(|_| Error::Revert("key too large".into()))818			})819			.collect::<Result<Vec<_>>>()?;820821		<Self as CommonCollectionOperations<T>>::token_properties(822			&self,823			token_id.try_into()?,824			if keys.is_empty() { None } else { Some(keys) },825		)826		.into_iter()827		.map(|p| {828			let key = string::from_utf8(p.key.to_vec())829				.map_err(|e| Error::Revert(alloc::format!("{}", e)))?;830			let value = bytes(p.value.to_vec());831			Ok(PropertyStruct { key, value })832		})833		.collect::<Result<Vec<_>>>()834	}835	/// @notice Transfer ownership of an RFT836	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`837	///  is the zero address. Throws if `tokenId` is not a valid RFT.838	///  Throws if RFT pieces have multiple owners.839	/// @param to The new owner840	/// @param tokenId The RFT to transfer841	#[weight(<SelfWeightOf<T>>::transfer_creating_removing())]842	fn transfer(&mut self, caller: caller, to: address, token_id: uint256) -> Result<void> {843		let caller = T::CrossAccountId::from_eth(caller);844		let to = T::CrossAccountId::from_eth(to);845		let token = token_id.try_into()?;846		let budget = self847			.recorder848			.weight_calls_budget(<StructureWeight<T>>::find_parent());849850		let balance = balance(self, token, &caller)?;851		ensure_single_owner(self, token, balance)?;852853		<Pallet<T>>::transfer(self, &caller, &to, token, balance, &budget)854			.map_err(dispatch_to_evm::<T>)?;855		Ok(())856	}857858	/// @notice Transfer ownership of an RFT859	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`860	///  is the zero address. Throws if `tokenId` is not a valid RFT.861	///  Throws if RFT pieces have multiple owners.862	/// @param to The new owner863	/// @param tokenId The RFT to transfer864	#[weight(<SelfWeightOf<T>>::transfer_creating_removing())]865	fn transfer_cross(866		&mut self,867		caller: caller,868		to: EthCrossAccount,869		token_id: uint256,870	) -> Result<void> {871		let caller = T::CrossAccountId::from_eth(caller);872		let to = to.into_sub_cross_account::<T>()?;873		let token = token_id.try_into()?;874		let budget = self875			.recorder876			.weight_calls_budget(<StructureWeight<T>>::find_parent());877878		let balance = balance(self, token, &caller)?;879		ensure_single_owner(self, token, balance)?;880881		<Pallet<T>>::transfer(self, &caller, &to, token, balance, &budget)882			.map_err(dispatch_to_evm::<T>)?;883		Ok(())884	}885886	/// @notice Transfer ownership of an RFT887	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`888	///  is the zero address. Throws if `tokenId` is not a valid RFT.889	///  Throws if RFT pieces have multiple owners.890	/// @param to The new owner891	/// @param tokenId The RFT to transfer892	#[weight(<SelfWeightOf<T>>::transfer_creating_removing())]893	fn transfer_from_cross(894		&mut self,895		caller: caller,896		from: EthCrossAccount,897		to: EthCrossAccount,898		token_id: uint256,899	) -> Result<void> {900		let caller = T::CrossAccountId::from_eth(caller);901		let from = from.into_sub_cross_account::<T>()?;902		let to = to.into_sub_cross_account::<T>()?;903		let token_id = token_id.try_into()?;904		let budget = self905			.recorder906			.weight_calls_budget(<StructureWeight<T>>::find_parent());907908		let balance = balance(self, token_id, &from)?;909		ensure_single_owner(self, token_id, balance)?;910911		Pallet::<T>::transfer_from(self, &caller, &from, &to, token_id, balance, &budget)912			.map_err(dispatch_to_evm::<T>)?;913		Ok(())914	}915916	/// @notice Burns a specific ERC721 token.917	/// @dev Throws unless `msg.sender` is the current owner or an authorized918	///  operator for this RFT. Throws if `from` is not the current owner. Throws919	///  if `to` is the zero address. Throws if `tokenId` is not a valid RFT.920	///  Throws if RFT pieces have multiple owners.921	/// @param from The current owner of the RFT922	/// @param tokenId The RFT to transfer923	#[solidity(hide)]924	#[weight(<SelfWeightOf<T>>::burn_from())]925	fn burn_from(&mut self, caller: caller, from: address, token_id: uint256) -> Result<void> {926		let caller = T::CrossAccountId::from_eth(caller);927		let from = T::CrossAccountId::from_eth(from);928		let token = token_id.try_into()?;929		let budget = self930			.recorder931			.weight_calls_budget(<StructureWeight<T>>::find_parent());932933		let balance = balance(self, token, &from)?;934		ensure_single_owner(self, token, balance)?;935936		<Pallet<T>>::burn_from(self, &caller, &from, token, balance, &budget)937			.map_err(dispatch_to_evm::<T>)?;938		Ok(())939	}940941	/// @notice Burns a specific ERC721 token.942	/// @dev Throws unless `msg.sender` is the current owner or an authorized943	///  operator for this RFT. Throws if `from` is not the current owner. Throws944	///  if `to` is the zero address. Throws if `tokenId` is not a valid RFT.945	///  Throws if RFT pieces have multiple owners.946	/// @param from The current owner of the RFT947	/// @param tokenId The RFT to transfer948	#[weight(<SelfWeightOf<T>>::burn_from())]949	fn burn_from_cross(950		&mut self,951		caller: caller,952		from: EthCrossAccount,953		token_id: uint256,954	) -> Result<void> {955		let caller = T::CrossAccountId::from_eth(caller);956		let from = from.into_sub_cross_account::<T>()?;957		let token = token_id.try_into()?;958		let budget = self959			.recorder960			.weight_calls_budget(<StructureWeight<T>>::find_parent());961962		let balance = balance(self, token, &from)?;963		ensure_single_owner(self, token, balance)?;964965		<Pallet<T>>::burn_from(self, &caller, &from, token, balance, &budget)966			.map_err(dispatch_to_evm::<T>)?;967		Ok(())968	}969970	/// @notice Returns next free RFT ID.971	fn next_token_id(&self) -> Result<uint256> {972		self.consume_store_reads(1)?;973		Ok(<TokensMinted<T>>::get(self.id)974			.checked_add(1)975			.ok_or("item id overflow")?976			.into())977	}978979	/// @notice Function to mint multiple tokens.980	/// @dev `tokenIds` should be an array of consecutive numbers and first number981	///  should be obtained with `nextTokenId` method982	/// @param to The new owner983	/// @param tokenIds IDs of the minted RFTs984	#[solidity(hide)]985	#[weight(<SelfWeightOf<T>>::create_multiple_items(token_ids.len() as u32))]986	fn mint_bulk(&mut self, caller: caller, to: address, token_ids: Vec<uint256>) -> Result<bool> {987		let caller = T::CrossAccountId::from_eth(caller);988		let to = T::CrossAccountId::from_eth(to);989		let mut expected_index = <TokensMinted<T>>::get(self.id)990			.checked_add(1)991			.ok_or("item id overflow")?;992		let budget = self993			.recorder994			.weight_calls_budget(<StructureWeight<T>>::find_parent());995996		let total_tokens = token_ids.len();997		for id in token_ids.into_iter() {998			let id: u32 = id.try_into().map_err(|_| "token id overflow")?;999			if id != expected_index {1000				return Err("item id should be next".into());1001			}1002			expected_index = expected_index.checked_add(1).ok_or("item id overflow")?;1003		}1004		let users = [(to.clone(), 1)]1005			.into_iter()1006			.collect::<BTreeMap<_, _>>()1007			.try_into()1008			.unwrap();1009		let create_item_data = CreateItemData::<T> {1010			users,1011			properties: CollectionPropertiesVec::default(),1012		};1013		let data = (0..total_tokens)1014			.map(|_| create_item_data.clone())1015			.collect();10161017		<Pallet<T>>::create_multiple_items(self, &caller, data, &budget)1018			.map_err(dispatch_to_evm::<T>)?;1019		Ok(true)1020	}10211022	/// @notice Function to mint multiple tokens with the given tokenUris.1023	/// @dev `tokenIds` is array of pairs of token ID and token URI. Token IDs should be consecutive1024	///  numbers and first number should be obtained with `nextTokenId` method1025	/// @param to The new owner1026	/// @param tokens array of pairs of token ID and token URI for minted tokens1027	#[solidity(hide, rename_selector = "mintBulkWithTokenURI")]1028	#[weight(<SelfWeightOf<T>>::create_multiple_items(tokens.len() as u32))]1029	fn mint_bulk_with_token_uri(1030		&mut self,1031		caller: caller,1032		to: address,1033		tokens: Vec<(uint256, string)>,1034	) -> Result<bool> {1035		let key = key::url();1036		let caller = T::CrossAccountId::from_eth(caller);1037		let to = T::CrossAccountId::from_eth(to);1038		let mut expected_index = <TokensMinted<T>>::get(self.id)1039			.checked_add(1)1040			.ok_or("item id overflow")?;1041		let budget = self1042			.recorder1043			.weight_calls_budget(<StructureWeight<T>>::find_parent());10441045		let mut data = Vec::with_capacity(tokens.len());1046		let users: BoundedBTreeMap<_, _, _> = [(to.clone(), 1)]1047			.into_iter()1048			.collect::<BTreeMap<_, _>>()1049			.try_into()1050			.unwrap();1051		for (id, token_uri) in tokens {1052			let id: u32 = id.try_into().map_err(|_| "token id overflow")?;1053			if id != expected_index {1054				return Err("item id should be next".into());1055			}1056			expected_index = expected_index.checked_add(1).ok_or("item id overflow")?;10571058			let mut properties = CollectionPropertiesVec::default();1059			properties1060				.try_push(Property {1061					key: key.clone(),1062					value: token_uri1063						.into_bytes()1064						.try_into()1065						.map_err(|_| "token uri is too long")?,1066				})1067				.map_err(|e| Error::Revert(alloc::format!("Can't add property: {:?}", e)))?;10681069			let create_item_data = CreateItemData::<T> {1070				users: users.clone(),1071				properties,1072			};1073			data.push(create_item_data);1074		}10751076		<Pallet<T>>::create_multiple_items(self, &caller, data, &budget)1077			.map_err(dispatch_to_evm::<T>)?;1078		Ok(true)1079	}10801081	/// @notice Function to mint a token.1082	/// @param to The new owner crossAccountId1083	/// @param properties Properties of minted token1084	/// @return uint256 The id of the newly minted token1085	#[weight(<SelfWeightOf<T>>::create_item())]1086	fn mint_cross(1087		&mut self,1088		caller: caller,1089		to: EthCrossAccount,1090		properties: Vec<PropertyStruct>,1091	) -> Result<uint256> {1092		let token_id = <TokensMinted<T>>::get(self.id)1093			.checked_add(1)1094			.ok_or("item id overflow")?;10951096		let to = to.into_sub_cross_account::<T>()?;10971098		let properties = properties1099			.into_iter()1100			.map(|PropertyStruct { key, value }| {1101				let key = <Vec<u8>>::from(key)1102					.try_into()1103					.map_err(|_| "key too large")?;11041105				let value = value.0.try_into().map_err(|_| "value too large")?;11061107				Ok(Property { key, value })1108			})1109			.collect::<Result<Vec<_>>>()?1110			.try_into()1111			.map_err(|_| Error::Revert(alloc::format!("too many properties")))?;11121113		let caller = T::CrossAccountId::from_eth(caller);11141115		let budget = self1116			.recorder1117			.weight_calls_budget(<StructureWeight<T>>::find_parent());11181119		let users = [(to, 1)]1120			.into_iter()1121			.collect::<BTreeMap<_, _>>()1122			.try_into()1123			.unwrap();1124		<Pallet<T>>::create_item(1125			self,1126			&caller,1127			CreateItemData::<T> { users, properties },1128			&budget,1129		)1130		.map_err(dispatch_to_evm::<T>)?;11311132		Ok(token_id.into())1133	}11341135	/// Returns EVM address for refungible token1136	///1137	/// @param token ID of the token1138	fn token_contract_address(&self, token: uint256) -> Result<address> {1139		Ok(T::EvmTokenAddressMapping::token_to_address(1140			self.id,1141			token.try_into().map_err(|_| "token id overflow")?,1142		))1143	}1144}11451146#[solidity_interface(1147	name = UniqueRefungible,1148	is(1149		ERC721,1150		ERC721Enumerable,1151		ERC721UniqueExtensions,1152		ERC721UniqueMintable,1153		ERC721Burnable,1154		ERC721Metadata(if(this.flags.erc721metadata)),1155		Collection(via(common_mut returns CollectionHandle<T>)),1156		TokenProperties,1157	)1158)]1159impl<T: Config> RefungibleHandle<T> where T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]> {}11601161// Not a tests, but code generators1162generate_stubgen!(gen_impl, UniqueRefungibleCall<()>, true);1163generate_stubgen!(gen_iface, UniqueRefungibleCall<()>, false);11641165impl<T: Config> CommonEvmHandler for RefungibleHandle<T>1166where1167	T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]>,1168{1169	const CODE: &'static [u8] = include_bytes!("./stubs/UniqueRefungible.raw");1170	fn call(1171		self,1172		handle: &mut impl PrecompileHandle,1173	) -> Option<pallet_common::erc::PrecompileResult> {1174		call::<T, UniqueRefungibleCall<T>, _, _>(handle, self)1175	}1176}