git.delta.rocks / unique-network / refs/commits / 916ae427c879

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/// @title ERC-721 Non-Fungible Token Standard, optional metadata extension299/// @dev See https://eips.ethereum.org/EIPS/eip-721300#[solidity_interface(name = ERC721Metadata, expect_selector = 0x5b5e139f)]301impl<T: Config> RefungibleHandle<T>302where303	T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]>,304{305	/// @notice A descriptive name for a collection of NFTs in this contract306	/// @dev real implementation of this function lies in `ERC721UniqueExtensions`307	#[solidity(hide, rename_selector = "name")]308	fn name_proxy(&self) -> Result<string> {309		self.name()310	}311312	/// @notice An abbreviated name for NFTs in this contract313	/// @dev real implementation of this function lies in `ERC721UniqueExtensions`314	#[solidity(hide, rename_selector = "symbol")]315	fn symbol_proxy(&self) -> Result<string> {316		self.symbol()317	}318319	/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.320	///321	/// @dev If the token has a `url` property and it is not empty, it is returned.322	///  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`.323	///  If the collection property `baseURI` is empty or absent, return "" (empty string)324	///  otherwise, if token property `suffix` present and is non-empty, return concatenation of baseURI and suffix325	///  otherwise, return concatenation of `baseURI` and stringified token id (decimal stringifying, without paddings).326	///327	/// @return token's const_metadata328	#[solidity(rename_selector = "tokenURI")]329	fn token_uri(&self, token_id: uint256) -> Result<string> {330		let token_id_u32: u32 = token_id.try_into().map_err(|_| "token id overflow")?;331332		match get_token_property(self, token_id_u32, &key::url()).as_deref() {333			Err(_) | Ok("") => (),334			Ok(url) => {335				return Ok(url.into());336			}337		};338339		let base_uri =340			pallet_common::Pallet::<T>::get_collection_property(self.id, &key::base_uri())341				.map(BoundedVec::into_inner)342				.map(string::from_utf8)343				.transpose()344				.map_err(|e| {345					Error::Revert(alloc::format!(346						"Can not convert value \"baseURI\" to string with error \"{}\"",347						e348					))349				})?;350351		let base_uri = match base_uri.as_deref() {352			None | Some("") => {353				return Ok("".into());354			}355			Some(base_uri) => base_uri.into(),356		};357358		Ok(359			match get_token_property(self, token_id_u32, &key::suffix()).as_deref() {360				Err(_) | Ok("") => base_uri,361				Ok(suffix) => base_uri + suffix,362			},363		)364	}365}366367/// @title ERC-721 Non-Fungible Token Standard, optional enumeration extension368/// @dev See https://eips.ethereum.org/EIPS/eip-721369#[solidity_interface(name = ERC721Enumerable, expect_selector = 0x780e9d63)]370impl<T: Config> RefungibleHandle<T> {371	/// @notice Enumerate valid RFTs372	/// @param index A counter less than `totalSupply()`373	/// @return The token identifier for the `index`th NFT,374	///  (sort order not specified)375	fn token_by_index(&self, index: uint256) -> Result<uint256> {376		Ok(index)377	}378379	/// Not implemented380	fn token_of_owner_by_index(&self, _owner: address, _index: uint256) -> Result<uint256> {381		// TODO: Not implemetable382		Err("not implemented".into())383	}384385	/// @notice Count RFTs tracked by this contract386	/// @return A count of valid RFTs tracked by this contract, where each one of387	///  them has an assigned and queryable owner not equal to the zero address388	fn total_supply(&self) -> Result<uint256> {389		self.consume_store_reads(1)?;390		Ok(<Pallet<T>>::total_supply(self).into())391	}392}393394/// @title ERC-721 Non-Fungible Token Standard395/// @dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md396#[solidity_interface(name = ERC721, events(ERC721Events), expect_selector = 0x80ac58cd)]397impl<T: Config> RefungibleHandle<T> {398	/// @notice Count all RFTs assigned to an owner399	/// @dev RFTs assigned to the zero address are considered invalid, and this400	///  function throws for queries about the zero address.401	/// @param owner An address for whom to query the balance402	/// @return The number of RFTs owned by `owner`, possibly zero403	fn balance_of(&self, owner: address) -> Result<uint256> {404		self.consume_store_reads(1)?;405		let owner = T::CrossAccountId::from_eth(owner);406		let balance = <AccountBalance<T>>::get((self.id, owner));407		Ok(balance.into())408	}409410	/// @notice Find the owner of an RFT411	/// @dev RFTs assigned to zero address are considered invalid, and queries412	///  about them do throw.413	///  Returns special 0xffffffffffffffffffffffffffffffffffffffff address for414	///  the tokens that are partially owned.415	/// @param tokenId The identifier for an RFT416	/// @return The address of the owner of the RFT417	fn owner_of(&self, token_id: uint256) -> Result<address> {418		self.consume_store_reads(2)?;419		let token = token_id.try_into()?;420		let owner = <Pallet<T>>::token_owner(self.id, token);421		Ok(owner422			.map(|address| *address.as_eth())423			.unwrap_or_else(|| ADDRESS_FOR_PARTIALLY_OWNED_TOKENS))424	}425426	/// @dev Not implemented427	#[solidity(rename_selector = "safeTransferFrom")]428	fn safe_transfer_from_with_data(429		&mut self,430		_from: address,431		_to: address,432		_token_id: uint256,433		_data: bytes,434	) -> Result<void> {435		// TODO: Not implemetable436		Err("not implemented".into())437	}438439	/// @dev Not implemented440	#[solidity(rename_selector = "safeTransferFrom")]441	fn safe_transfer_from(442		&mut self,443		_from: address,444		_to: address,445		_token_id: uint256,446	) -> Result<void> {447		// TODO: Not implemetable448		Err("not implemented".into())449	}450451	/// @notice Transfer ownership of an RFT -- THE CALLER IS RESPONSIBLE452	///  TO CONFIRM THAT `to` IS CAPABLE OF RECEIVING NFTS OR ELSE453	///  THEY MAY BE PERMANENTLY LOST454	/// @dev Throws unless `msg.sender` is the current owner or an authorized455	///  operator for this RFT. Throws if `from` is not the current owner. Throws456	///  if `to` is the zero address. Throws if `tokenId` is not a valid RFT.457	///  Throws if RFT pieces have multiple owners.458	/// @param from The current owner of the NFT459	/// @param to The new owner460	/// @param tokenId The NFT to transfer461	#[weight(<SelfWeightOf<T>>::transfer_from_creating_removing())]462	fn transfer_from(463		&mut self,464		caller: caller,465		from: address,466		to: address,467		token_id: uint256,468	) -> Result<void> {469		let caller = T::CrossAccountId::from_eth(caller);470		let from = T::CrossAccountId::from_eth(from);471		let to = T::CrossAccountId::from_eth(to);472		let token = token_id.try_into()?;473		let budget = self474			.recorder475			.weight_calls_budget(<StructureWeight<T>>::find_parent());476477		let balance = balance(&self, token, &from)?;478		ensure_single_owner(&self, token, balance)?;479480		<Pallet<T>>::transfer_from(self, &caller, &from, &to, token, balance, &budget)481			.map_err(dispatch_to_evm::<T>)?;482483		Ok(())484	}485486	/// @dev Not implemented487	fn approve(&mut self, _caller: caller, _approved: address, _token_id: uint256) -> Result<void> {488		Err("not implemented".into())489	}490491	/// @notice Sets or unsets the approval of a given operator.492	///  The `operator` is allowed to transfer all token pieces of the `caller` on their behalf.493	/// @param operator Operator494	/// @param approved Should operator status be granted or revoked?495	#[weight(<SelfWeightOf<T>>::set_allowance_for_all())]496	fn set_approval_for_all(497		&mut self,498		caller: caller,499		operator: address,500		approved: bool,501	) -> Result<void> {502		let caller = T::CrossAccountId::from_eth(caller);503		let operator = T::CrossAccountId::from_eth(operator);504505		<Pallet<T>>::set_allowance_for_all(self, &caller, &operator, approved)506			.map_err(dispatch_to_evm::<T>)?;507		Ok(())508	}509510	/// @dev Not implemented511	fn get_approved(&self, _token_id: uint256) -> Result<address> {512		// TODO: Not implemetable513		Err("not implemented".into())514	}515516	/// @notice Tells whether the given `owner` approves the `operator`.517	#[weight(<SelfWeightOf<T>>::allowance_for_all())]518	fn is_approved_for_all(&self, owner: address, operator: address) -> Result<bool> {519		let owner = T::CrossAccountId::from_eth(owner);520		let operator = T::CrossAccountId::from_eth(operator);521522		Ok(<Pallet<T>>::allowance_for_all(self, &owner, &operator))523	}524}525526/// Returns amount of pieces of `token` that `owner` have527pub fn balance<T: Config>(528	collection: &RefungibleHandle<T>,529	token: TokenId,530	owner: &T::CrossAccountId,531) -> Result<u128> {532	collection.consume_store_reads(1)?;533	let balance = <Balance<T>>::get((collection.id, token, &owner));534	Ok(balance)535}536537/// Throws if `owner_balance` is lower than total amount of `token` pieces538pub fn ensure_single_owner<T: Config>(539	collection: &RefungibleHandle<T>,540	token: TokenId,541	owner_balance: u128,542) -> Result<()> {543	collection.consume_store_reads(1)?;544	let total_supply = <TotalSupply<T>>::get((collection.id, token));545546	if owner_balance == 0 {547		return Err(dispatch_to_evm::<T>(548			<CommonError<T>>::MustBeTokenOwner.into(),549		));550	}551552	if total_supply != owner_balance {553		return Err("token has multiple owners".into());554	}555	Ok(())556}557558/// @title ERC721 Token that can be irreversibly burned (destroyed).559#[solidity_interface(name = ERC721Burnable)]560impl<T: Config> RefungibleHandle<T> {561	/// @notice Burns a specific ERC721 token.562	/// @dev Throws unless `msg.sender` is the current RFT owner, or an authorized563	///  operator of the current owner.564	/// @param tokenId The RFT to approve565	#[weight(<SelfWeightOf<T>>::burn_item_fully())]566	fn burn(&mut self, caller: caller, token_id: uint256) -> Result<void> {567		let caller = T::CrossAccountId::from_eth(caller);568		let token = token_id.try_into()?;569570		let balance = balance(&self, token, &caller)?;571		ensure_single_owner(&self, token, balance)?;572573		<Pallet<T>>::burn(self, &caller, token, balance).map_err(dispatch_to_evm::<T>)?;574		Ok(())575	}576}577578/// @title ERC721 minting logic.579#[solidity_interface(name = ERC721UniqueMintable, events(ERC721UniqueMintableEvents))]580impl<T: Config> RefungibleHandle<T> {581	fn minting_finished(&self) -> Result<bool> {582		Ok(false)583	}584585	/// @notice Function to mint a token.586	/// @param to The new owner587	/// @return uint256 The id of the newly minted token588	#[weight(<SelfWeightOf<T>>::create_item())]589	fn mint(&mut self, caller: caller, to: address) -> Result<uint256> {590		let token_id: uint256 = <TokensMinted<T>>::get(self.id)591			.checked_add(1)592			.ok_or("item id overflow")?593			.into();594		self.mint_check_id(caller, to, token_id)?;595		Ok(token_id)596	}597598	/// @notice Function to mint a token.599	/// @dev `tokenId` should be obtained with `nextTokenId` method,600	///  unlike standard, you can't specify it manually601	/// @param to The new owner602	/// @param tokenId ID of the minted RFT603	#[solidity(hide, rename_selector = "mint")]604	#[weight(<SelfWeightOf<T>>::create_item())]605	fn mint_check_id(&mut self, caller: caller, to: address, token_id: uint256) -> Result<bool> {606		let caller = T::CrossAccountId::from_eth(caller);607		let to = T::CrossAccountId::from_eth(to);608		let token_id: u32 = token_id.try_into()?;609		let budget = self610			.recorder611			.weight_calls_budget(<StructureWeight<T>>::find_parent());612613		if <TokensMinted<T>>::get(self.id)614			.checked_add(1)615			.ok_or("item id overflow")?616			!= token_id617		{618			return Err("item id should be next".into());619		}620621		let users = [(to.clone(), 1)]622			.into_iter()623			.collect::<BTreeMap<_, _>>()624			.try_into()625			.unwrap();626		<Pallet<T>>::create_item(627			self,628			&caller,629			CreateItemData::<T> {630				users,631				properties: CollectionPropertiesVec::default(),632			},633			&budget,634		)635		.map_err(dispatch_to_evm::<T>)?;636637		Ok(true)638	}639640	/// @notice Function to mint token with the given tokenUri.641	/// @param to The new owner642	/// @param tokenUri Token URI that would be stored in the NFT properties643	/// @return uint256 The id of the newly minted token644	#[solidity(rename_selector = "mintWithTokenURI")]645	#[weight(<SelfWeightOf<T>>::create_item())]646	fn mint_with_token_uri(647		&mut self,648		caller: caller,649		to: address,650		token_uri: string,651	) -> Result<uint256> {652		let token_id: uint256 = <TokensMinted<T>>::get(self.id)653			.checked_add(1)654			.ok_or("item id overflow")?655			.into();656		self.mint_with_token_uri_check_id(caller, to, token_id, token_uri)?;657		Ok(token_id)658	}659660	/// @notice Function to mint token with the given tokenUri.661	/// @dev `tokenId` should be obtained with `nextTokenId` method,662	///  unlike standard, you can't specify it manually663	/// @param to The new owner664	/// @param tokenId ID of the minted RFT665	/// @param tokenUri Token URI that would be stored in the RFT properties666	#[solidity(hide, rename_selector = "mintWithTokenURI")]667	#[weight(<SelfWeightOf<T>>::create_item())]668	fn mint_with_token_uri_check_id(669		&mut self,670		caller: caller,671		to: address,672		token_id: uint256,673		token_uri: string,674	) -> Result<bool> {675		let key = key::url();676		let permission = get_token_permission::<T>(self.id, &key)?;677		if !permission.collection_admin {678			return Err("Operation is not allowed".into());679		}680681		let caller = T::CrossAccountId::from_eth(caller);682		let to = T::CrossAccountId::from_eth(to);683		let token_id: u32 = token_id.try_into().map_err(|_| "amount overflow")?;684		let budget = self685			.recorder686			.weight_calls_budget(<StructureWeight<T>>::find_parent());687688		if <TokensMinted<T>>::get(self.id)689			.checked_add(1)690			.ok_or("item id overflow")?691			!= token_id692		{693			return Err("item id should be next".into());694		}695696		let mut properties = CollectionPropertiesVec::default();697		properties698			.try_push(Property {699				key,700				value: token_uri701					.into_bytes()702					.try_into()703					.map_err(|_| "token uri is too long")?,704			})705			.map_err(|e| Error::Revert(alloc::format!("Can't add property: {:?}", e)))?;706707		let users = [(to.clone(), 1)]708			.into_iter()709			.collect::<BTreeMap<_, _>>()710			.try_into()711			.unwrap();712		<Pallet<T>>::create_item(713			self,714			&caller,715			CreateItemData::<T> { users, properties },716			&budget,717		)718		.map_err(dispatch_to_evm::<T>)?;719		Ok(true)720	}721722	/// @dev Not implemented723	fn finish_minting(&mut self, _caller: caller) -> Result<bool> {724		Err("not implementable".into())725	}726}727728fn get_token_property<T: Config>(729	collection: &CollectionHandle<T>,730	token_id: u32,731	key: &up_data_structs::PropertyKey,732) -> Result<string> {733	collection.consume_store_reads(1)?;734	let properties = <TokenProperties<T>>::try_get((collection.id, token_id))735		.map_err(|_| Error::Revert("Token properties not found".into()))?;736	if let Some(property) = properties.get(key) {737		return Ok(string::from_utf8_lossy(property).into());738	}739740	Err("Property tokenURI not found".into())741}742743fn get_token_permission<T: Config>(744	collection_id: CollectionId,745	key: &PropertyKey,746) -> Result<PropertyPermission> {747	let token_property_permissions = CollectionPropertyPermissions::<T>::try_get(collection_id)748		.map_err(|_| Error::Revert("No permissions for collection".into()))?;749	let a = token_property_permissions750		.get(key)751		.map(Clone::clone)752		.ok_or_else(|| {753			let key = string::from_utf8(key.clone().into_inner()).unwrap_or_default();754			Error::Revert(alloc::format!("No permission for key {}", key))755		})?;756	Ok(a)757}758759/// @title Unique extensions for ERC721.760#[solidity_interface(name = ERC721UniqueExtensions)]761impl<T: Config> RefungibleHandle<T>762where763	T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]>,764{765	/// @notice A descriptive name for a collection of NFTs in this contract766	fn name(&self) -> Result<string> {767		Ok(decode_utf16(self.name.iter().copied())768			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))769			.collect::<string>())770	}771772	/// @notice An abbreviated name for NFTs in this contract773	fn symbol(&self) -> Result<string> {774		Ok(string::from_utf8_lossy(&self.token_prefix).into())775	}776777	/// @notice A description for the collection.778	fn description(&self) -> Result<string> {779		Ok(decode_utf16(self.description.iter().copied())780			.map(|r| r.unwrap_or(REPLACEMENT_CHARACTER))781			.collect::<string>())782	}783784	/// Returns the owner (in cross format) of the token.785	///786	/// @param tokenId Id for the token.787	fn cross_owner_of(&self, token_id: uint256) -> Result<eth::CrossAddress> {788		Self::token_owner(&self, token_id.try_into()?)789			.map(|o| eth::CrossAddress::from_sub_cross_account::<T>(&o))790			.ok_or(Error::Revert("key too large".into()))791	}792793	/// Returns the token properties.794	///795	/// @param tokenId Id for the token.796	/// @param keys Properties keys. Empty keys for all propertyes.797	/// @return Vector of properties key/value pairs.798	fn properties(&self, token_id: uint256, keys: Vec<string>) -> Result<Vec<eth::Property>> {799		let keys = keys800			.into_iter()801			.map(|key| {802				<Vec<u8>>::from(key)803					.try_into()804					.map_err(|_| Error::Revert("key too large".into()))805			})806			.collect::<Result<Vec<_>>>()?;807808		<Self as CommonCollectionOperations<T>>::token_properties(809			&self,810			token_id.try_into()?,811			if keys.is_empty() { None } else { Some(keys) },812		)813		.into_iter()814		.map(eth::Property::try_from)815		.collect::<Result<Vec<_>>>()816	}817	/// @notice Transfer ownership of an RFT818	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`819	///  is the zero address. Throws if `tokenId` is not a valid RFT.820	///  Throws if RFT pieces have multiple owners.821	/// @param to The new owner822	/// @param tokenId The RFT to transfer823	#[weight(<SelfWeightOf<T>>::transfer_creating_removing())]824	fn transfer(&mut self, caller: caller, to: address, token_id: uint256) -> Result<void> {825		let caller = T::CrossAccountId::from_eth(caller);826		let to = T::CrossAccountId::from_eth(to);827		let token = token_id.try_into()?;828		let budget = self829			.recorder830			.weight_calls_budget(<StructureWeight<T>>::find_parent());831832		let balance = balance(self, token, &caller)?;833		ensure_single_owner(self, token, balance)?;834835		<Pallet<T>>::transfer(self, &caller, &to, token, balance, &budget)836			.map_err(dispatch_to_evm::<T>)?;837		Ok(())838	}839840	/// @notice Transfer ownership of an RFT841	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`842	///  is the zero address. Throws if `tokenId` is not a valid RFT.843	///  Throws if RFT pieces have multiple owners.844	/// @param to The new owner845	/// @param tokenId The RFT to transfer846	#[weight(<SelfWeightOf<T>>::transfer_creating_removing())]847	fn transfer_cross(848		&mut self,849		caller: caller,850		to: eth::CrossAddress,851		token_id: uint256,852	) -> Result<void> {853		let caller = T::CrossAccountId::from_eth(caller);854		let to = to.into_sub_cross_account::<T>()?;855		let token = token_id.try_into()?;856		let budget = self857			.recorder858			.weight_calls_budget(<StructureWeight<T>>::find_parent());859860		let balance = balance(self, token, &caller)?;861		ensure_single_owner(self, token, balance)?;862863		<Pallet<T>>::transfer(self, &caller, &to, token, balance, &budget)864			.map_err(dispatch_to_evm::<T>)?;865		Ok(())866	}867868	/// @notice Transfer ownership of an RFT869	/// @dev Throws unless `msg.sender` is the current owner. Throws if `to`870	///  is the zero address. Throws if `tokenId` is not a valid RFT.871	///  Throws if RFT pieces have multiple owners.872	/// @param to The new owner873	/// @param tokenId The RFT to transfer874	#[weight(<SelfWeightOf<T>>::transfer_creating_removing())]875	fn transfer_from_cross(876		&mut self,877		caller: caller,878		from: eth::CrossAddress,879		to: eth::CrossAddress,880		token_id: uint256,881	) -> Result<void> {882		let caller = T::CrossAccountId::from_eth(caller);883		let from = from.into_sub_cross_account::<T>()?;884		let to = to.into_sub_cross_account::<T>()?;885		let token_id = token_id.try_into()?;886		let budget = self887			.recorder888			.weight_calls_budget(<StructureWeight<T>>::find_parent());889890		let balance = balance(self, token_id, &from)?;891		ensure_single_owner(self, token_id, balance)?;892893		Pallet::<T>::transfer_from(self, &caller, &from, &to, token_id, balance, &budget)894			.map_err(dispatch_to_evm::<T>)?;895		Ok(())896	}897898	/// @notice Burns a specific ERC721 token.899	/// @dev Throws unless `msg.sender` is the current owner or an authorized900	///  operator for this RFT. Throws if `from` is not the current owner. Throws901	///  if `to` is the zero address. Throws if `tokenId` is not a valid RFT.902	///  Throws if RFT pieces have multiple owners.903	/// @param from The current owner of the RFT904	/// @param tokenId The RFT to transfer905	#[solidity(hide)]906	#[weight(<SelfWeightOf<T>>::burn_from())]907	fn burn_from(&mut self, caller: caller, from: address, token_id: uint256) -> Result<void> {908		let caller = T::CrossAccountId::from_eth(caller);909		let from = T::CrossAccountId::from_eth(from);910		let token = token_id.try_into()?;911		let budget = self912			.recorder913			.weight_calls_budget(<StructureWeight<T>>::find_parent());914915		let balance = balance(self, token, &from)?;916		ensure_single_owner(self, token, balance)?;917918		<Pallet<T>>::burn_from(self, &caller, &from, token, balance, &budget)919			.map_err(dispatch_to_evm::<T>)?;920		Ok(())921	}922923	/// @notice Burns a specific ERC721 token.924	/// @dev Throws unless `msg.sender` is the current owner or an authorized925	///  operator for this RFT. Throws if `from` is not the current owner. Throws926	///  if `to` is the zero address. Throws if `tokenId` is not a valid RFT.927	///  Throws if RFT pieces have multiple owners.928	/// @param from The current owner of the RFT929	/// @param tokenId The RFT to transfer930	#[weight(<SelfWeightOf<T>>::burn_from())]931	fn burn_from_cross(932		&mut self,933		caller: caller,934		from: eth::CrossAddress,935		token_id: uint256,936	) -> Result<void> {937		let caller = T::CrossAccountId::from_eth(caller);938		let from = from.into_sub_cross_account::<T>()?;939		let token = token_id.try_into()?;940		let budget = self941			.recorder942			.weight_calls_budget(<StructureWeight<T>>::find_parent());943944		let balance = balance(self, token, &from)?;945		ensure_single_owner(self, token, balance)?;946947		<Pallet<T>>::burn_from(self, &caller, &from, token, balance, &budget)948			.map_err(dispatch_to_evm::<T>)?;949		Ok(())950	}951952	/// @notice Returns next free RFT ID.953	fn next_token_id(&self) -> Result<uint256> {954		self.consume_store_reads(1)?;955		Ok(<TokensMinted<T>>::get(self.id)956			.checked_add(1)957			.ok_or("item id overflow")?958			.into())959	}960961	/// @notice Function to mint multiple tokens.962	/// @dev `tokenIds` should be an array of consecutive numbers and first number963	///  should be obtained with `nextTokenId` method964	/// @param to The new owner965	/// @param tokenIds IDs of the minted RFTs966	#[solidity(hide)]967	#[weight(<SelfWeightOf<T>>::create_multiple_items(token_ids.len() as u32))]968	fn mint_bulk(&mut self, caller: caller, to: address, token_ids: Vec<uint256>) -> Result<bool> {969		let caller = T::CrossAccountId::from_eth(caller);970		let to = T::CrossAccountId::from_eth(to);971		let mut expected_index = <TokensMinted<T>>::get(self.id)972			.checked_add(1)973			.ok_or("item id overflow")?;974		let budget = self975			.recorder976			.weight_calls_budget(<StructureWeight<T>>::find_parent());977978		let total_tokens = token_ids.len();979		for id in token_ids.into_iter() {980			let id: u32 = id.try_into().map_err(|_| "token id overflow")?;981			if id != expected_index {982				return Err("item id should be next".into());983			}984			expected_index = expected_index.checked_add(1).ok_or("item id overflow")?;985		}986		let users = [(to.clone(), 1)]987			.into_iter()988			.collect::<BTreeMap<_, _>>()989			.try_into()990			.unwrap();991		let create_item_data = CreateItemData::<T> {992			users,993			properties: CollectionPropertiesVec::default(),994		};995		let data = (0..total_tokens)996			.map(|_| create_item_data.clone())997			.collect();998999		<Pallet<T>>::create_multiple_items(self, &caller, data, &budget)1000			.map_err(dispatch_to_evm::<T>)?;1001		Ok(true)1002	}10031004	/// @notice Function to mint multiple tokens with the given tokenUris.1005	/// @dev `tokenIds` is array of pairs of token ID and token URI. Token IDs should be consecutive1006	///  numbers and first number should be obtained with `nextTokenId` method1007	/// @param to The new owner1008	/// @param tokens array of pairs of token ID and token URI for minted tokens1009	#[solidity(hide, rename_selector = "mintBulkWithTokenURI")]1010	#[weight(<SelfWeightOf<T>>::create_multiple_items(tokens.len() as u32))]1011	fn mint_bulk_with_token_uri(1012		&mut self,1013		caller: caller,1014		to: address,1015		tokens: Vec<(uint256, string)>,1016	) -> Result<bool> {1017		let key = key::url();1018		let caller = T::CrossAccountId::from_eth(caller);1019		let to = T::CrossAccountId::from_eth(to);1020		let mut expected_index = <TokensMinted<T>>::get(self.id)1021			.checked_add(1)1022			.ok_or("item id overflow")?;1023		let budget = self1024			.recorder1025			.weight_calls_budget(<StructureWeight<T>>::find_parent());10261027		let mut data = Vec::with_capacity(tokens.len());1028		let users: BoundedBTreeMap<_, _, _> = [(to.clone(), 1)]1029			.into_iter()1030			.collect::<BTreeMap<_, _>>()1031			.try_into()1032			.unwrap();1033		for (id, token_uri) in tokens {1034			let id: u32 = id.try_into().map_err(|_| "token id overflow")?;1035			if id != expected_index {1036				return Err("item id should be next".into());1037			}1038			expected_index = expected_index.checked_add(1).ok_or("item id overflow")?;10391040			let mut properties = CollectionPropertiesVec::default();1041			properties1042				.try_push(Property {1043					key: key.clone(),1044					value: token_uri1045						.into_bytes()1046						.try_into()1047						.map_err(|_| "token uri is too long")?,1048				})1049				.map_err(|e| Error::Revert(alloc::format!("Can't add property: {:?}", e)))?;10501051			let create_item_data = CreateItemData::<T> {1052				users: users.clone(),1053				properties,1054			};1055			data.push(create_item_data);1056		}10571058		<Pallet<T>>::create_multiple_items(self, &caller, data, &budget)1059			.map_err(dispatch_to_evm::<T>)?;1060		Ok(true)1061	}10621063	/// @notice Function to mint a token.1064	/// @param to The new owner crossAccountId1065	/// @param properties Properties of minted token1066	/// @return uint256 The id of the newly minted token1067	#[weight(<SelfWeightOf<T>>::create_item())]1068	fn mint_cross(1069		&mut self,1070		caller: caller,1071		to: eth::CrossAddress,1072		properties: Vec<eth::Property>,1073	) -> Result<uint256> {1074		let token_id = <TokensMinted<T>>::get(self.id)1075			.checked_add(1)1076			.ok_or("item id overflow")?;10771078		let to = to.into_sub_cross_account::<T>()?;10791080		let properties = properties1081			.into_iter()1082			.map(eth::Property::try_into)1083			.collect::<Result<Vec<_>>>()?1084			.try_into()1085			.map_err(|_| Error::Revert(alloc::format!("too many properties")))?;10861087		let caller = T::CrossAccountId::from_eth(caller);10881089		let budget = self1090			.recorder1091			.weight_calls_budget(<StructureWeight<T>>::find_parent());10921093		let users = [(to, 1)]1094			.into_iter()1095			.collect::<BTreeMap<_, _>>()1096			.try_into()1097			.unwrap();1098		<Pallet<T>>::create_item(1099			self,1100			&caller,1101			CreateItemData::<T> { users, properties },1102			&budget,1103		)1104		.map_err(dispatch_to_evm::<T>)?;11051106		Ok(token_id.into())1107	}11081109	/// Returns EVM address for refungible token1110	///1111	/// @param token ID of the token1112	fn token_contract_address(&self, token: uint256) -> Result<address> {1113		Ok(T::EvmTokenAddressMapping::token_to_address(1114			self.id,1115			token.try_into().map_err(|_| "token id overflow")?,1116		))1117	}11181119	/// @notice Returns collection helper contract address1120	fn collection_helper_address(&self) -> Result<address> {1121		Ok(T::ContractAddress::get())1122	}1123}11241125#[solidity_interface(1126	name = UniqueRefungible,1127	is(1128		ERC721,1129		ERC721Enumerable,1130		ERC721UniqueExtensions,1131		ERC721UniqueMintable,1132		ERC721Burnable,1133		ERC721Metadata(if(this.flags.erc721metadata)),1134		Collection(via(common_mut returns CollectionHandle<T>)),1135		TokenProperties,1136	)1137)]1138impl<T: Config> RefungibleHandle<T> where T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]> {}11391140// Not a tests, but code generators1141generate_stubgen!(gen_impl, UniqueRefungibleCall<()>, true);1142generate_stubgen!(gen_iface, UniqueRefungibleCall<()>, false);11431144impl<T: Config> CommonEvmHandler for RefungibleHandle<T>1145where1146	T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]>,1147{1148	const CODE: &'static [u8] = include_bytes!("./stubs/UniqueRefungible.raw");1149	fn call(1150		self,1151		handle: &mut impl PrecompileHandle,1152	) -> Option<pallet_common::erc::PrecompileResult> {1153		call::<T, UniqueRefungibleCall<T>, _, _>(handle, self)1154	}1155}