git.delta.rocks / unique-network / refs/commits / e6b665a657b2

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	Error as CommonError,36	erc::{CommonEvmHandler, CollectionCall, static_property::key},37	eth,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<eth::TokenPropertyPermission>,101	) -> Result<()> {102		let caller = T::CrossAccountId::from_eth(caller);103		let perms = eth::TokenPropertyPermission::into_property_key_permissions(permissions)?;104105		<Pallet<T>>::set_token_property_permissions(self, &caller, perms)106			.map_err(dispatch_to_evm::<T>)107	}108109	/// @notice Get permissions for token properties.110	fn token_property_permissions(&self) -> Result<Vec<eth::TokenPropertyPermission>> {111		let perms = <Pallet<T>>::token_property_permission(self.id);112		Ok(perms113			.into_iter()114			.map(eth::TokenPropertyPermission::from)115			.collect())116	}117118	/// @notice Set token property value.119	/// @dev Throws error if `msg.sender` has no permission to edit the property.120	/// @param tokenId ID of the token.121	/// @param key Property key.122	/// @param value Property value.123	#[solidity(hide)]124	#[weight(<SelfWeightOf<T>>::set_token_properties(1))]125	fn set_property(126		&mut self,127		caller: caller,128		token_id: uint256,129		key: string,130		value: bytes,131	) -> Result<()> {132		let caller = T::CrossAccountId::from_eth(caller);133		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;134		let key = <Vec<u8>>::from(key)135			.try_into()136			.map_err(|_| "key too long")?;137		let value = value.0.try_into().map_err(|_| "value too long")?;138139		let nesting_budget = self140			.recorder141			.weight_calls_budget(<StructureWeight<T>>::find_parent());142143		<Pallet<T>>::set_token_property(144			self,145			&caller,146			TokenId(token_id),147			Property { key, value },148			&nesting_budget,149		)150		.map_err(dispatch_to_evm::<T>)151	}152153	/// @notice Set token properties value.154	/// @dev Throws error if `msg.sender` has no permission to edit the property.155	/// @param tokenId ID of the token.156	/// @param properties settable properties157	#[weight(<SelfWeightOf<T>>::set_token_properties(properties.len() as u32))]158	fn set_properties(159		&mut self,160		caller: caller,161		token_id: uint256,162		properties: Vec<eth::Property>,163	) -> Result<()> {164		let caller = T::CrossAccountId::from_eth(caller);165		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;166167		let nesting_budget = self168			.recorder169			.weight_calls_budget(<StructureWeight<T>>::find_parent());170171		let properties = properties172			.into_iter()173			.map(eth::Property::try_into)174			.collect::<Result<Vec<_>>>()?;175176		<Pallet<T>>::set_token_properties(177			self,178			&caller,179			TokenId(token_id),180			properties.into_iter(),181			false,182			&nesting_budget,183		)184		.map_err(dispatch_to_evm::<T>)185	}186187	/// @notice Delete token property value.188	/// @dev Throws error if `msg.sender` has no permission to edit the property.189	/// @param tokenId ID of the token.190	/// @param key Property key.191	#[solidity(hide)]192	#[weight(<SelfWeightOf<T>>::delete_token_properties(1))]193	fn delete_property(&mut self, token_id: uint256, caller: caller, key: string) -> Result<()> {194		let caller = T::CrossAccountId::from_eth(caller);195		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;196		let key = <Vec<u8>>::from(key)197			.try_into()198			.map_err(|_| "key too long")?;199200		let nesting_budget = self201			.recorder202			.weight_calls_budget(<StructureWeight<T>>::find_parent());203204		<Pallet<T>>::delete_token_property(self, &caller, TokenId(token_id), key, &nesting_budget)205			.map_err(dispatch_to_evm::<T>)206	}207208	/// @notice Delete token properties value.209	/// @dev Throws error if `msg.sender` has no permission to edit the property.210	/// @param tokenId ID of the token.211	/// @param keys Properties key.212	#[weight(<SelfWeightOf<T>>::delete_token_properties(keys.len() as u32))]213	fn delete_properties(214		&mut self,215		token_id: uint256,216		caller: caller,217		keys: Vec<string>,218	) -> Result<()> {219		let caller = T::CrossAccountId::from_eth(caller);220		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;221		let keys = keys222			.into_iter()223			.map(|k| Ok(<Vec<u8>>::from(k).try_into().map_err(|_| "key too long")?))224			.collect::<Result<Vec<_>>>()?;225226		let nesting_budget = self227			.recorder228			.weight_calls_budget(<StructureWeight<T>>::find_parent());229230		<Pallet<T>>::delete_token_properties(231			self,232			&caller,233			TokenId(token_id),234			keys.into_iter(),235			&nesting_budget,236		)237		.map_err(dispatch_to_evm::<T>)238	}239240	/// @notice Get token property value.241	/// @dev Throws error if key not found242	/// @param tokenId ID of the token.243	/// @param key Property key.244	/// @return Property value bytes245	fn property(&self, token_id: uint256, key: string) -> Result<bytes> {246		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;247		let key = <Vec<u8>>::from(key)248			.try_into()249			.map_err(|_| "key too long")?;250251		let props = <TokenProperties<T>>::get((self.id, token_id));252		let prop = props.get(&key).ok_or("key not found")?;253254		Ok(prop.to_vec().into())255	}256}257258#[derive(ToLog)]259pub enum ERC721Events {260	/// @dev This event emits when NFTs are created (`from` == 0) and destroyed261	///  (`to` == 0). Exception: during contract creation, any number of RFTs262	///  may be created and assigned without emitting Transfer.263	Transfer {264		#[indexed]265		from: address,266		#[indexed]267		to: address,268		#[indexed]269		token_id: uint256,270	},271	/// @dev Not supported272	Approval {273		#[indexed]274		owner: address,275		#[indexed]276		approved: address,277		#[indexed]278		token_id: uint256,279	},280	/// @dev Not supported281	#[allow(dead_code)]282	ApprovalForAll {283		#[indexed]284		owner: address,285		#[indexed]286		operator: address,287		approved: bool,288	},289}290291#[derive(ToLog)]292pub enum ERC721UniqueMintableEvents {293	/// @dev Not supported294	#[allow(dead_code)]295	MintingFinished {},296}297298#[solidity_interface(name = ERC721Metadata)]299impl<T: Config> RefungibleHandle<T>300where301	T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]>,302{303	/// @notice A descriptive name for a collection of NFTs in this contract304	/// @dev real implementation of this function lies in `ERC721UniqueExtensions`305	#[solidity(hide, rename_selector = "name")]306	fn name_proxy(&self) -> Result<string> {307		self.name()308	}309310	/// @notice An abbreviated name for NFTs in this contract311	/// @dev real implementation of this function lies in `ERC721UniqueExtensions`312	#[solidity(hide, rename_selector = "symbol")]313	fn symbol_proxy(&self) -> Result<string> {314		self.symbol()315	}316317	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.318	///319	/// @dev If the token has a `url` property and it is not empty, it is returned.320	///  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`.321	///  If the collection property `baseURI` is empty or absent, return "" (empty string)322	///  otherwise, if token property `suffix` present and is non-empty, return concatenation of baseURI and suffix323	///  otherwise, return concatenation of `baseURI` and stringified token id (decimal stringifying, without paddings).324	///325	/// @return token's const_metadata326	#[solidity(rename_selector = "tokenURI")]327	fn token_uri(&self, token_id: uint256) -> Result<string> {328		let token_id_u32: u32 = token_id.try_into().map_err(|_| "token id overflow")?;329330		match get_token_property(self, token_id_u32, &key::url()).as_deref() {331			Err(_) | Ok("") => (),332			Ok(url) => {333				return Ok(url.into());334			}335		};336337		let base_uri =338			pallet_common::Pallet::<T>::get_collection_property(self.id, &key::base_uri())339				.map(BoundedVec::into_inner)340				.map(string::from_utf8)341				.transpose()342				.map_err(|e| {343					Error::Revert(alloc::format!(344						"Can not convert value \"baseURI\" to string with error \"{}\"",345						e346					))347				})?;348349		let base_uri = match base_uri.as_deref() {350			None | Some("") => {351				return Ok("".into());352			}353			Some(base_uri) => base_uri.into(),354		};355356		Ok(357			match get_token_property(self, token_id_u32, &key::suffix()).as_deref() {358				Err(_) | Ok("") => base_uri,359				Ok(suffix) => base_uri + suffix,360			},361		)362	}363}364365/// @title ERC-721 Non-Fungible Token Standard, optional enumeration extension366/// @dev See https://eips.ethereum.org/EIPS/eip-721367#[solidity_interface(name = ERC721Enumerable)]368impl<T: Config> RefungibleHandle<T> {369	/// @notice Enumerate valid RFTs370	/// @param index A counter less than `totalSupply()`371	/// @return The token identifier for the `index`th NFT,372	///  (sort order not specified)373	fn token_by_index(&self, index: uint256) -> Result<uint256> {374		Ok(index)375	}376377	/// Not implemented378	fn token_of_owner_by_index(&self, _owner: address, _index: uint256) -> Result<uint256> {379		// TODO: Not implemetable380		Err("not implemented".into())381	}382383	/// @notice Count RFTs tracked by this contract384	/// @return A count of valid RFTs tracked by this contract, where each one of385	///  them has an assigned and queryable owner not equal to the zero address386	fn total_supply(&self) -> Result<uint256> {387		self.consume_store_reads(1)?;388		Ok(<Pallet<T>>::total_supply(self).into())389	}390}391392/// @title ERC-721 Non-Fungible Token Standard393/// @dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md394#[solidity_interface(name = ERC721, events(ERC721Events))]395impl<T: Config> RefungibleHandle<T> {396	/// @notice Count all RFTs assigned to an owner397	/// @dev RFTs assigned to the zero address are considered invalid, and this398	///  function throws for queries about the zero address.399	/// @param owner An address for whom to query the balance400	/// @return The number of RFTs owned by `owner`, possibly zero401	fn balance_of(&self, owner: address) -> Result<uint256> {402		self.consume_store_reads(1)?;403		let owner = T::CrossAccountId::from_eth(owner);404		let balance = <AccountBalance<T>>::get((self.id, owner));405		Ok(balance.into())406	}407408	/// @notice Find the owner of an RFT409	/// @dev RFTs assigned to zero address are considered invalid, and queries410	///  about them do throw.411	///  Returns special 0xffffffffffffffffffffffffffffffffffffffff address for412	///  the tokens that are partially owned.413	/// @param tokenId The identifier for an RFT414	/// @return The address of the owner of the RFT415	fn owner_of(&self, token_id: uint256) -> Result<address> {416		self.consume_store_reads(2)?;417		let token = token_id.try_into()?;418		let owner = <Pallet<T>>::token_owner(self.id, token);419		Ok(owner420			.map(|address| *address.as_eth())421			.unwrap_or_else(|| ADDRESS_FOR_PARTIALLY_OWNED_TOKENS))422	}423424	/// @dev Not implemented425	fn safe_transfer_from_with_data(426		&mut self,427		_from: address,428		_to: address,429		_token_id: uint256,430		_data: bytes,431	) -> Result<void> {432		// TODO: Not implemetable433		Err("not implemented".into())434	}435436	/// @dev Not implemented437	fn safe_transfer_from(438		&mut self,439		_from: address,440		_to: address,441		_token_id: uint256,442	) -> Result<void> {443		// TODO: Not implemetable444		Err("not implemented".into())445	}446447	/// @notice Transfer ownership of an RFT -- THE CALLER IS RESPONSIBLE448	///  TO CONFIRM THAT `to` IS CAPABLE OF RECEIVING NFTS OR ELSE449	///  THEY MAY BE PERMANENTLY LOST450	/// @dev Throws unless `msg.sender` is the current owner or an authorized451	///  operator for this RFT. Throws if `from` is not the current owner. Throws452	///  if `to` is the zero address. Throws if `tokenId` is not a valid RFT.453	///  Throws if RFT pieces have multiple owners.454	/// @param from The current owner of the NFT455	/// @param to The new owner456	/// @param tokenId The NFT to transfer457	#[weight(<SelfWeightOf<T>>::transfer_from_creating_removing())]458	fn transfer_from(459		&mut self,460		caller: caller,461		from: address,462		to: address,463		token_id: uint256,464	) -> Result<void> {465		let caller = T::CrossAccountId::from_eth(caller);466		let from = T::CrossAccountId::from_eth(from);467		let to = T::CrossAccountId::from_eth(to);468		let token = token_id.try_into()?;469		let budget = self470			.recorder471			.weight_calls_budget(<StructureWeight<T>>::find_parent());472473		let balance = balance(&self, token, &from)?;474		ensure_single_owner(&self, token, balance)?;475476		<Pallet<T>>::transfer_from(self, &caller, &from, &to, token, balance, &budget)477			.map_err(dispatch_to_evm::<T>)?;478479		Ok(())480	}481482	/// @dev Not implemented483	fn approve(&mut self, _caller: caller, _approved: address, _token_id: uint256) -> Result<void> {484		Err("not implemented".into())485	}486487	/// @notice Sets or unsets the approval of a given operator.488	///  The `operator` is allowed to transfer all token pieces of the `caller` on their behalf.489	/// @param operator Operator490	/// @param approved Should operator status be granted or revoked?491	#[weight(<SelfWeightOf<T>>::set_allowance_for_all())]492	fn set_approval_for_all(493		&mut self,494		caller: caller,495		operator: address,496		approved: bool,497	) -> Result<void> {498		let caller = T::CrossAccountId::from_eth(caller);499		let operator = T::CrossAccountId::from_eth(operator);500501		<Pallet<T>>::set_allowance_for_all(self, &caller, &operator, approved)502			.map_err(dispatch_to_evm::<T>)?;503		Ok(())504	}505506	/// @dev Not implemented507	fn get_approved(&self, _token_id: uint256) -> Result<address> {508		// TODO: Not implemetable509		Err("not implemented".into())510	}511512	/// @notice Tells whether the given `owner` approves the `operator`.513	#[weight(<SelfWeightOf<T>>::allowance_for_all())]514	fn is_approved_for_all(&self, owner: address, operator: address) -> Result<bool> {515		let owner = T::CrossAccountId::from_eth(owner);516		let operator = T::CrossAccountId::from_eth(operator);517518		Ok(<Pallet<T>>::allowance_for_all(self, &owner, &operator))519	}520521	/// @notice Returns collection helper contract address522	fn collection_helper_address(&self) -> Result<address> {523		Ok(T::ContractAddress::get())524	}525}526527/// Returns amount of pieces of `token` that `owner` have528pub fn balance<T: Config>(529	collection: &RefungibleHandle<T>,530	token: TokenId,531	owner: &T::CrossAccountId,532) -> Result<u128> {533	collection.consume_store_reads(1)?;534	let balance = <Balance<T>>::get((collection.id, token, &owner));535	Ok(balance)536}537538/// Throws if `owner_balance` is lower than total amount of `token` pieces539pub fn ensure_single_owner<T: Config>(540	collection: &RefungibleHandle<T>,541	token: TokenId,542	owner_balance: u128,543) -> Result<()> {544	collection.consume_store_reads(1)?;545	let total_supply = <TotalSupply<T>>::get((collection.id, token));546547	if owner_balance == 0 {548		return Err(dispatch_to_evm::<T>(549			<CommonError<T>>::MustBeTokenOwner.into(),550		));551	}552553	if total_supply != owner_balance {554		return Err("token has multiple owners".into());555	}556	Ok(())557}558559/// @title ERC721 Token that can be irreversibly burned (destroyed).560#[solidity_interface(name = ERC721Burnable)]561impl<T: Config> RefungibleHandle<T> {562	/// @notice Burns a specific ERC721 token.563	/// @dev Throws unless `msg.sender` is the current RFT owner, or an authorized564	///  operator of the current owner.565	/// @param tokenId The RFT to approve566	#[weight(<SelfWeightOf<T>>::burn_item_fully())]567	fn burn(&mut self, caller: caller, token_id: uint256) -> Result<void> {568		let caller = T::CrossAccountId::from_eth(caller);569		let token = token_id.try_into()?;570571		let balance = balance(&self, token, &caller)?;572		ensure_single_owner(&self, token, balance)?;573574		<Pallet<T>>::burn(self, &caller, token, balance).map_err(dispatch_to_evm::<T>)?;575		Ok(())576	}577}578579/// @title ERC721 minting logic.580#[solidity_interface(name = ERC721UniqueMintable, events(ERC721UniqueMintableEvents))]581impl<T: Config> RefungibleHandle<T> {582	fn minting_finished(&self) -> Result<bool> {583		Ok(false)584	}585586	/// @notice Function to mint a token.587	/// @param to The new owner588	/// @return uint256 The id of the newly minted token589	#[weight(<SelfWeightOf<T>>::create_item())]590	fn mint(&mut self, caller: caller, to: address) -> Result<uint256> {591		let token_id: uint256 = <TokensMinted<T>>::get(self.id)592			.checked_add(1)593			.ok_or("item id overflow")?594			.into();595		self.mint_check_id(caller, to, token_id)?;596		Ok(token_id)597	}598599	/// @notice Function to mint a token.600	/// @dev `tokenId` should be obtained with `nextTokenId` method,601	///  unlike standard, you can't specify it manually602	/// @param to The new owner603	/// @param tokenId ID of the minted RFT604	#[solidity(hide, rename_selector = "mint")]605	#[weight(<SelfWeightOf<T>>::create_item())]606	fn mint_check_id(&mut self, caller: caller, to: address, token_id: uint256) -> Result<bool> {607		let caller = T::CrossAccountId::from_eth(caller);608		let to = T::CrossAccountId::from_eth(to);609		let token_id: u32 = token_id.try_into()?;610		let budget = self611			.recorder612			.weight_calls_budget(<StructureWeight<T>>::find_parent());613614		if <TokensMinted<T>>::get(self.id)615			.checked_add(1)616			.ok_or("item id overflow")?617			!= token_id618		{619			return Err("item id should be next".into());620		}621622		let users = [(to.clone(), 1)]623			.into_iter()624			.collect::<BTreeMap<_, _>>()625			.try_into()626			.unwrap();627		<Pallet<T>>::create_item(628			self,629			&caller,630			CreateItemData::<T> {631				users,632				properties: CollectionPropertiesVec::default(),633			},634			&budget,635		)636		.map_err(dispatch_to_evm::<T>)?;637638		Ok(true)639	}640641	/// @notice Function to mint token with the given tokenUri.642	/// @param to The new owner643	/// @param tokenUri Token URI that would be stored in the NFT properties644	/// @return uint256 The id of the newly minted token645	#[solidity(rename_selector = "mintWithTokenURI")]646	#[weight(<SelfWeightOf<T>>::create_item())]647	fn mint_with_token_uri(648		&mut self,649		caller: caller,650		to: address,651		token_uri: string,652	) -> Result<uint256> {653		let token_id: uint256 = <TokensMinted<T>>::get(self.id)654			.checked_add(1)655			.ok_or("item id overflow")?656			.into();657		self.mint_with_token_uri_check_id(caller, to, token_id, token_uri)?;658		Ok(token_id)659	}660661	/// @notice Function to mint token with the given tokenUri.662	/// @dev `tokenId` should be obtained with `nextTokenId` method,663	///  unlike standard, you can't specify it manually664	/// @param to The new owner665	/// @param tokenId ID of the minted RFT666	/// @param tokenUri Token URI that would be stored in the RFT properties667	#[solidity(hide, rename_selector = "mintWithTokenURI")]668	#[weight(<SelfWeightOf<T>>::create_item())]669	fn mint_with_token_uri_check_id(670		&mut self,671		caller: caller,672		to: address,673		token_id: uint256,674		token_uri: string,675	) -> Result<bool> {676		let key = key::url();677		let permission = get_token_permission::<T>(self.id, &key)?;678		if !permission.collection_admin {679			return Err("Operation is not allowed".into());680		}681682		let caller = T::CrossAccountId::from_eth(caller);683		let to = T::CrossAccountId::from_eth(to);684		let token_id: u32 = token_id.try_into().map_err(|_| "amount overflow")?;685		let budget = self686			.recorder687			.weight_calls_budget(<StructureWeight<T>>::find_parent());688689		if <TokensMinted<T>>::get(self.id)690			.checked_add(1)691			.ok_or("item id overflow")?692			!= token_id693		{694			return Err("item id should be next".into());695		}696697		let mut properties = CollectionPropertiesVec::default();698		properties699			.try_push(Property {700				key,701				value: token_uri702					.into_bytes()703					.try_into()704					.map_err(|_| "token uri is too long")?,705			})706			.map_err(|e| Error::Revert(alloc::format!("Can't add property: {:?}", e)))?;707708		let users = [(to.clone(), 1)]709			.into_iter()710			.collect::<BTreeMap<_, _>>()711			.try_into()712			.unwrap();713		<Pallet<T>>::create_item(714			self,715			&caller,716			CreateItemData::<T> { users, properties },717			&budget,718		)719		.map_err(dispatch_to_evm::<T>)?;720		Ok(true)721	}722723	/// @dev Not implemented724	fn finish_minting(&mut self, _caller: caller) -> Result<bool> {725		Err("not implementable".into())726	}727}728729fn get_token_property<T: Config>(730	collection: &CollectionHandle<T>,731	token_id: u32,732	key: &up_data_structs::PropertyKey,733) -> Result<string> {734	collection.consume_store_reads(1)?;735	let properties = <TokenProperties<T>>::try_get((collection.id, token_id))736		.map_err(|_| Error::Revert("Token properties not found".into()))?;737	if let Some(property) = properties.get(key) {738		return Ok(string::from_utf8_lossy(property).into());739	}740741	Err("Property tokenURI not found".into())742}743744fn get_token_permission<T: Config>(745	collection_id: CollectionId,746	key: &PropertyKey,747) -> Result<PropertyPermission> {748	let token_property_permissions = CollectionPropertyPermissions::<T>::try_get(collection_id)749		.map_err(|_| Error::Revert("No permissions for collection".into()))?;750	let a = token_property_permissions751		.get(key)752		.map(Clone::clone)753		.ok_or_else(|| {754			let key = string::from_utf8(key.clone().into_inner()).unwrap_or_default();755			Error::Revert(alloc::format!("No permission for key {}", key))756		})?;757	Ok(a)758}759760/// @title Unique extensions for ERC721.761#[solidity_interface(name = ERC721UniqueExtensions)]762impl<T: Config> RefungibleHandle<T>763where764	T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]>,765{766	/// @notice A descriptive name for a collection of NFTs in this contract767	fn name(&self) -> Result<string> {768		Ok(decode_utf16(self.name.iter().copied())769			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))770			.collect::<string>())771	}772773	/// @notice An abbreviated name for NFTs in this contract774	fn symbol(&self) -> Result<string> {775		Ok(string::from_utf8_lossy(&self.token_prefix).into())776	}777778	/// @notice A description for the collection.779	fn description(&self) -> Result<string> {780		Ok(decode_utf16(self.description.iter().copied())781			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))782			.collect::<string>())783	}784785	/// Returns the owner (in cross format) of the token.786	///787	/// @param tokenId Id for the token.788	fn cross_owner_of(&self, token_id: uint256) -> Result<eth::CrossAddress> {789		Self::token_owner(&self, token_id.try_into()?)790			.map(|o| eth::CrossAddress::from_sub_cross_account::<T>(&o))791			.ok_or(Error::Revert("key too large".into()))792	}793794	/// Returns the token properties.795	///796	/// @param tokenId Id for the token.797	/// @param keys Properties keys. Empty keys for all propertyes.798	/// @return Vector of properties key/value pairs.799	fn properties(&self, token_id: uint256, keys: Vec<string>) -> Result<Vec<eth::Property>> {800		let keys = keys801			.into_iter()802			.map(|key| {803				<Vec<u8>>::from(key)804					.try_into()805					.map_err(|_| Error::Revert("key too large".into()))806			})807			.collect::<Result<Vec<_>>>()?;808809		<Self as CommonCollectionOperations<T>>::token_properties(810			&self,811			token_id.try_into()?,812			if keys.is_empty() { None } else { Some(keys) },813		)814		.into_iter()815		.map(eth::Property::try_from)816		.collect::<Result<Vec<_>>>()817	}818	/// @notice Transfer ownership of an RFT819	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`820	///  is the zero address. Throws if `tokenId` is not a valid RFT.821	///  Throws if RFT pieces have multiple owners.822	/// @param to The new owner823	/// @param tokenId The RFT to transfer824	#[weight(<SelfWeightOf<T>>::transfer_creating_removing())]825	fn transfer(&mut self, caller: caller, to: address, token_id: uint256) -> Result<void> {826		let caller = T::CrossAccountId::from_eth(caller);827		let to = T::CrossAccountId::from_eth(to);828		let token = token_id.try_into()?;829		let budget = self830			.recorder831			.weight_calls_budget(<StructureWeight<T>>::find_parent());832833		let balance = balance(self, token, &caller)?;834		ensure_single_owner(self, token, balance)?;835836		<Pallet<T>>::transfer(self, &caller, &to, token, balance, &budget)837			.map_err(dispatch_to_evm::<T>)?;838		Ok(())839	}840841	/// @notice Transfer ownership of an RFT842	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`843	///  is the zero address. Throws if `tokenId` is not a valid RFT.844	///  Throws if RFT pieces have multiple owners.845	/// @param to The new owner846	/// @param tokenId The RFT to transfer847	#[weight(<SelfWeightOf<T>>::transfer_creating_removing())]848	fn transfer_cross(849		&mut self,850		caller: caller,851		to: eth::CrossAddress,852		token_id: uint256,853	) -> Result<void> {854		let caller = T::CrossAccountId::from_eth(caller);855		let to = to.into_sub_cross_account::<T>()?;856		let token = token_id.try_into()?;857		let budget = self858			.recorder859			.weight_calls_budget(<StructureWeight<T>>::find_parent());860861		let balance = balance(self, token, &caller)?;862		ensure_single_owner(self, token, balance)?;863864		<Pallet<T>>::transfer(self, &caller, &to, token, balance, &budget)865			.map_err(dispatch_to_evm::<T>)?;866		Ok(())867	}868869	/// @notice Transfer ownership of an RFT870	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`871	///  is the zero address. Throws if `tokenId` is not a valid RFT.872	///  Throws if RFT pieces have multiple owners.873	/// @param to The new owner874	/// @param tokenId The RFT to transfer875	#[weight(<SelfWeightOf<T>>::transfer_creating_removing())]876	fn transfer_from_cross(877		&mut self,878		caller: caller,879		from: eth::CrossAddress,880		to: eth::CrossAddress,881		token_id: uint256,882	) -> Result<void> {883		let caller = T::CrossAccountId::from_eth(caller);884		let from = from.into_sub_cross_account::<T>()?;885		let to = to.into_sub_cross_account::<T>()?;886		let token_id = token_id.try_into()?;887		let budget = self888			.recorder889			.weight_calls_budget(<StructureWeight<T>>::find_parent());890891		let balance = balance(self, token_id, &from)?;892		ensure_single_owner(self, token_id, balance)?;893894		Pallet::<T>::transfer_from(self, &caller, &from, &to, token_id, balance, &budget)895			.map_err(dispatch_to_evm::<T>)?;896		Ok(())897	}898899	/// @notice Burns a specific ERC721 token.900	/// @dev Throws unless `msg.sender` is the current owner or an authorized901	///  operator for this RFT. Throws if `from` is not the current owner. Throws902	///  if `to` is the zero address. Throws if `tokenId` is not a valid RFT.903	///  Throws if RFT pieces have multiple owners.904	/// @param from The current owner of the RFT905	/// @param tokenId The RFT to transfer906	#[solidity(hide)]907	#[weight(<SelfWeightOf<T>>::burn_from())]908	fn burn_from(&mut self, caller: caller, from: address, token_id: uint256) -> Result<void> {909		let caller = T::CrossAccountId::from_eth(caller);910		let from = T::CrossAccountId::from_eth(from);911		let token = token_id.try_into()?;912		let budget = self913			.recorder914			.weight_calls_budget(<StructureWeight<T>>::find_parent());915916		let balance = balance(self, token, &from)?;917		ensure_single_owner(self, token, balance)?;918919		<Pallet<T>>::burn_from(self, &caller, &from, token, balance, &budget)920			.map_err(dispatch_to_evm::<T>)?;921		Ok(())922	}923924	/// @notice Burns a specific ERC721 token.925	/// @dev Throws unless `msg.sender` is the current owner or an authorized926	///  operator for this RFT. Throws if `from` is not the current owner. Throws927	///  if `to` is the zero address. Throws if `tokenId` is not a valid RFT.928	///  Throws if RFT pieces have multiple owners.929	/// @param from The current owner of the RFT930	/// @param tokenId The RFT to transfer931	#[weight(<SelfWeightOf<T>>::burn_from())]932	fn burn_from_cross(933		&mut self,934		caller: caller,935		from: eth::CrossAddress,936		token_id: uint256,937	) -> Result<void> {938		let caller = T::CrossAccountId::from_eth(caller);939		let from = from.into_sub_cross_account::<T>()?;940		let token = token_id.try_into()?;941		let budget = self942			.recorder943			.weight_calls_budget(<StructureWeight<T>>::find_parent());944945		let balance = balance(self, token, &from)?;946		ensure_single_owner(self, token, balance)?;947948		<Pallet<T>>::burn_from(self, &caller, &from, token, balance, &budget)949			.map_err(dispatch_to_evm::<T>)?;950		Ok(())951	}952953	/// @notice Returns next free RFT ID.954	fn next_token_id(&self) -> Result<uint256> {955		self.consume_store_reads(1)?;956		Ok(<TokensMinted<T>>::get(self.id)957			.checked_add(1)958			.ok_or("item id overflow")?959			.into())960	}961962	/// @notice Function to mint multiple tokens.963	/// @dev `tokenIds` should be an array of consecutive numbers and first number964	///  should be obtained with `nextTokenId` method965	/// @param to The new owner966	/// @param tokenIds IDs of the minted RFTs967	#[solidity(hide)]968	#[weight(<SelfWeightOf<T>>::create_multiple_items(token_ids.len() as u32))]969	fn mint_bulk(&mut self, caller: caller, to: address, token_ids: Vec<uint256>) -> Result<bool> {970		let caller = T::CrossAccountId::from_eth(caller);971		let to = T::CrossAccountId::from_eth(to);972		let mut expected_index = <TokensMinted<T>>::get(self.id)973			.checked_add(1)974			.ok_or("item id overflow")?;975		let budget = self976			.recorder977			.weight_calls_budget(<StructureWeight<T>>::find_parent());978979		let total_tokens = token_ids.len();980		for id in token_ids.into_iter() {981			let id: u32 = id.try_into().map_err(|_| "token id overflow")?;982			if id != expected_index {983				return Err("item id should be next".into());984			}985			expected_index = expected_index.checked_add(1).ok_or("item id overflow")?;986		}987		let users = [(to.clone(), 1)]988			.into_iter()989			.collect::<BTreeMap<_, _>>()990			.try_into()991			.unwrap();992		let create_item_data = CreateItemData::<T> {993			users,994			properties: CollectionPropertiesVec::default(),995		};996		let data = (0..total_tokens)997			.map(|_| create_item_data.clone())998			.collect();9991000		<Pallet<T>>::create_multiple_items(self, &caller, data, &budget)1001			.map_err(dispatch_to_evm::<T>)?;1002		Ok(true)1003	}10041005	/// @notice Function to mint multiple tokens with the given tokenUris.1006	/// @dev `tokenIds` is array of pairs of token ID and token URI. Token IDs should be consecutive1007	///  numbers and first number should be obtained with `nextTokenId` method1008	/// @param to The new owner1009	/// @param tokens array of pairs of token ID and token URI for minted tokens1010	#[solidity(hide, rename_selector = "mintBulkWithTokenURI")]1011	#[weight(<SelfWeightOf<T>>::create_multiple_items(tokens.len() as u32))]1012	fn mint_bulk_with_token_uri(1013		&mut self,1014		caller: caller,1015		to: address,1016		tokens: Vec<(uint256, string)>,1017	) -> Result<bool> {1018		let key = key::url();1019		let caller = T::CrossAccountId::from_eth(caller);1020		let to = T::CrossAccountId::from_eth(to);1021		let mut expected_index = <TokensMinted<T>>::get(self.id)1022			.checked_add(1)1023			.ok_or("item id overflow")?;1024		let budget = self1025			.recorder1026			.weight_calls_budget(<StructureWeight<T>>::find_parent());10271028		let mut data = Vec::with_capacity(tokens.len());1029		let users: BoundedBTreeMap<_, _, _> = [(to.clone(), 1)]1030			.into_iter()1031			.collect::<BTreeMap<_, _>>()1032			.try_into()1033			.unwrap();1034		for (id, token_uri) in tokens {1035			let id: u32 = id.try_into().map_err(|_| "token id overflow")?;1036			if id != expected_index {1037				return Err("item id should be next".into());1038			}1039			expected_index = expected_index.checked_add(1).ok_or("item id overflow")?;10401041			let mut properties = CollectionPropertiesVec::default();1042			properties1043				.try_push(Property {1044					key: key.clone(),1045					value: token_uri1046						.into_bytes()1047						.try_into()1048						.map_err(|_| "token uri is too long")?,1049				})1050				.map_err(|e| Error::Revert(alloc::format!("Can't add property: {:?}", e)))?;10511052			let create_item_data = CreateItemData::<T> {1053				users: users.clone(),1054				properties,1055			};1056			data.push(create_item_data);1057		}10581059		<Pallet<T>>::create_multiple_items(self, &caller, data, &budget)1060			.map_err(dispatch_to_evm::<T>)?;1061		Ok(true)1062	}10631064	/// @notice Function to mint a token.1065	/// @param to The new owner crossAccountId1066	/// @param properties Properties of minted token1067	/// @return uint256 The id of the newly minted token1068	#[weight(<SelfWeightOf<T>>::create_item())]1069	fn mint_cross(1070		&mut self,1071		caller: caller,1072		to: eth::CrossAddress,1073		properties: Vec<eth::Property>,1074	) -> Result<uint256> {1075		let token_id = <TokensMinted<T>>::get(self.id)1076			.checked_add(1)1077			.ok_or("item id overflow")?;10781079		let to = to.into_sub_cross_account::<T>()?;10801081		let properties = properties1082			.into_iter()1083			.map(eth::Property::try_into)1084			.collect::<Result<Vec<_>>>()?1085			.try_into()1086			.map_err(|_| Error::Revert(alloc::format!("too many properties")))?;10871088		let caller = T::CrossAccountId::from_eth(caller);10891090		let budget = self1091			.recorder1092			.weight_calls_budget(<StructureWeight<T>>::find_parent());10931094		let users = [(to, 1)]1095			.into_iter()1096			.collect::<BTreeMap<_, _>>()1097			.try_into()1098			.unwrap();1099		<Pallet<T>>::create_item(1100			self,1101			&caller,1102			CreateItemData::<T> { users, properties },1103			&budget,1104		)1105		.map_err(dispatch_to_evm::<T>)?;11061107		Ok(token_id.into())1108	}11091110	/// Returns EVM address for refungible token1111	///1112	/// @param token ID of the token1113	fn token_contract_address(&self, token: uint256) -> Result<address> {1114		Ok(T::EvmTokenAddressMapping::token_to_address(1115			self.id,1116			token.try_into().map_err(|_| "token id overflow")?,1117		))1118	}1119}11201121#[solidity_interface(1122	name = UniqueRefungible,1123	is(1124		ERC721,1125		ERC721Enumerable,1126		ERC721UniqueExtensions,1127		ERC721UniqueMintable,1128		ERC721Burnable,1129		ERC721Metadata(if(this.flags.erc721metadata)),1130		Collection(via(common_mut returns CollectionHandle<T>)),1131		TokenProperties,1132	)1133)]1134impl<T: Config> RefungibleHandle<T> where T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]> {}11351136// Not a tests, but code generators1137generate_stubgen!(gen_impl, UniqueRefungibleCall<()>, true);1138generate_stubgen!(gen_iface, UniqueRefungibleCall<()>, false);11391140impl<T: Config> CommonEvmHandler for RefungibleHandle<T>1141where1142	T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]>,1143{1144	const CODE: &'static [u8] = include_bytes!("./stubs/UniqueRefungible.raw");1145	fn call(1146		self,1147		handle: &mut impl PrecompileHandle,1148	) -> Option<pallet_common::erc::PrecompileResult> {1149		call::<T, UniqueRefungibleCall<T>, _, _>(handle, self)1150	}1151}