123456#![recursion_limit = "1024"]7#![cfg_attr(not(feature = "std"), no_std)]8#![allow(9 clippy::too_many_arguments,10 clippy::unnecessary_mut_passed,11 clippy::unused_unit12)]1314extern crate alloc;1516pub use serde::{Serialize, Deserialize};1718pub use frame_support::{19 construct_runtime, decl_event, decl_module, decl_storage, decl_error,20 dispatch::DispatchResult,21 ensure, fail, parameter_types,22 traits::{23 Currency, ExistenceRequirement, Get, Imbalance, KeyOwnerProofSystem, OnUnbalanced,24 Randomness, IsSubType, WithdrawReasons,25 },26 weights::{27 constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},28 DispatchInfo, GetDispatchInfo, IdentityFee, Pays, PostDispatchInfo, Weight,29 WeightToFeePolynomial, DispatchClass,30 },31 StorageValue, transactional,32};3334use frame_system::{self as system, ensure_signed};35use sp_core::H160;36use sp_std::vec;37use sp_runtime::{DispatchError, sp_std::prelude::Vec};38use core::ops::{Deref, DerefMut};39use nft_data_structs::{40 MAX_DECIMAL_POINTS, MAX_SPONSOR_TIMEOUT, MAX_TOKEN_OWNERSHIP, MAX_REFUNGIBLE_PIECES,41 CUSTOM_DATA_LIMIT, COLLECTION_NUMBER_LIMIT, ACCOUNT_TOKEN_OWNERSHIP_LIMIT,42 VARIABLE_ON_CHAIN_SCHEMA_LIMIT, CONST_ON_CHAIN_SCHEMA_LIMIT, COLLECTION_ADMINS_LIMIT,43 OFFCHAIN_SCHEMA_LIMIT, MAX_TOKEN_PREFIX_LENGTH, MAX_COLLECTION_NAME_LENGTH,44 MAX_COLLECTION_DESCRIPTION_LENGTH, AccessMode, Collection, CreateItemData, CollectionLimits,45 CollectionId, CollectionMode, TokenId, SchemaVersion, SponsorshipState, Ownership, NftItemType,46 FungibleItemType, ReFungibleItemType,47};4849#[cfg(test)]50mod mock;5152#[cfg(test)]53mod tests;5455mod eth;56mod sponsorship;57pub use sponsorship::NftSponsorshipHandler;58pub use eth::sponsoring::NftEthSponsorshipHandler;5960pub use eth::NftErcSupport;61pub use eth::account::*;62use eth::erc::{ERC20Events, ERC721Events};6364#[cfg(feature = "runtime-benchmarks")]65mod benchmarking;66pub mod weights;67use weights::WeightInfo;6869decl_error! {70 71 pub enum Error for Module<T: Config> {72 73 TotalCollectionsLimitExceeded,74 75 CollectionDecimalPointLimitExceeded,76 77 CollectionNameLimitExceeded,78 79 CollectionDescriptionLimitExceeded,80 81 CollectionTokenPrefixLimitExceeded,82 83 CollectionNotFound,84 85 TokenNotFound,86 87 AdminNotFound,88 89 NumOverflow,90 91 AlreadyAdmin,92 93 NoPermission,94 95 ConfirmUnsetSponsorFail,96 97 PublicMintingNotAllowed,98 99 MustBeTokenOwner,100 101 TokenValueTooLow,102 103 NftSizeLimitExceeded,104 105 ApproveNotFound,106 107 TokenValueNotEnough,108 109 ApproveRequired,110 111 AddresNotInWhiteList,112 113 CollectionAdminsLimitExceeded,114 115 AddressOwnershipLimitExceeded,116 117 EmptyArgument,118 119 TokenConstDataLimitExceeded,120 121 TokenVariableDataLimitExceeded,122 123 NotNftDataUsedToMintNftCollectionToken,124 125 NotFungibleDataUsedToMintFungibleCollectionToken,126 127 NotReFungibleDataUsedToMintReFungibleCollectionToken,128 129 UnexpectedCollectionType,130 131 CantStoreMetadataInFungibleTokens,132 133 CollectionTokenLimitExceeded,134 135 AccountTokenLimitExceeded,136 137 CollectionLimitBoundsExceeded,138 139 OwnerPermissionsCantBeReverted,140 141 SchemaDataLimitExceeded,142 143 WrongRefungiblePieces,144 145 BadCreateRefungibleCall,146 147 OutOfGas,148 149 TransferNotAllowed,150 151 AddressIsZero,152 }153}154155#[must_use = "Should call submit_logs or save, otherwise some data will be lost for evm side"]156pub struct CollectionHandle<T: Config> {157 pub id: CollectionId,158 collection: Collection<T>,159 recorder: pallet_evm_coder_substrate::SubstrateRecorder<T>,160}161impl<T: Config> CollectionHandle<T> {162 pub fn get_with_gas_limit(id: CollectionId, gas_limit: u64) -> Option<Self> {163 <CollectionById<T>>::get(id).map(|collection| Self {164 id,165 collection,166 recorder: pallet_evm_coder_substrate::SubstrateRecorder::new(167 eth::collection_id_to_address(id),168 gas_limit,169 ),170 })171 }172 pub fn get(id: CollectionId) -> Option<Self> {173 Self::get_with_gas_limit(id, u64::MAX)174 }175 pub fn log(&self, log: impl evm_coder::ToLog) -> DispatchResult {176 self.recorder.log_sub(log)177 }178 #[allow(dead_code)]179 fn consume_gas(&self, gas: u64) -> DispatchResult {180 self.recorder.consume_gas_sub(gas)181 }182 fn consume_sload(&self) -> DispatchResult {183 self.recorder.consume_sload_sub()184 }185 fn consume_sstore(&self) -> DispatchResult {186 self.recorder.consume_sstore_sub()187 }188 pub fn submit_logs(self) -> DispatchResult {189 self.recorder.submit_logs()190 }191 pub fn save(self) -> DispatchResult {192 self.recorder.submit_logs()?;193 <CollectionById<T>>::insert(self.id, self.collection);194 Ok(())195 }196}197impl<T: Config> Deref for CollectionHandle<T> {198 type Target = Collection<T>;199200 fn deref(&self) -> &Self::Target {201 &self.collection202 }203}204205impl<T: Config> DerefMut for CollectionHandle<T> {206 fn deref_mut(&mut self) -> &mut Self::Target {207 &mut self.collection208 }209}210211pub trait Config: system::Config + pallet_evm_coder_substrate::Config + Sized {212 type Event: From<Event<Self>> + Into<<Self as system::Config>::Event>;213214 215 type WeightInfo: WeightInfo;216217 type EvmAddressMapping: pallet_evm::AddressMapping<Self::AccountId>;218 type EvmBackwardsAddressMapping: EvmBackwardsAddressMapping<Self::AccountId>;219220 type CrossAccountId: CrossAccountId<Self::AccountId>;221 type Currency: Currency<Self::AccountId>;222 type CollectionCreationPrice: Get<223 <<Self as Config>::Currency as Currency<Self::AccountId>>::Balance,224 >;225 type TreasuryAccountId: Get<Self::AccountId>;226}227228type SelfWeightOf<T> = <T as Config>::WeightInfo;229230trait WeightInfoHelpers: WeightInfo {231 fn transfer() -> Weight {232 Self::transfer_nft()233 .max(Self::transfer_fungible())234 .max(Self::transfer_refungible())235 }236 fn transfer_from() -> Weight {237 Self::transfer_from_nft()238 .max(Self::transfer_from_fungible())239 .max(Self::transfer_from_refungible())240 }241 fn approve() -> Weight {242 243 Self::approve_nft()244 }245 fn set_variable_meta_data(data: u32) -> Weight {246 247 Self::set_variable_meta_data_nft(data)248 }249 fn create_item(data: u32) -> Weight {250 Self::create_item_nft(data)251 .max(Self::create_item_fungible())252 .max(Self::create_item_refungible(data))253 }254 fn create_multiple_items(amount: u32) -> Weight {255 Self::create_multiple_items_nft(amount)256 .max(Self::create_multiple_items_fungible(amount))257 .max(Self::create_multiple_items_refungible(amount))258 }259 fn burn_item() -> Weight {260 261 Self::burn_item_nft()262 }263}264impl<T: WeightInfo> WeightInfoHelpers for T {}265266267268269270271272273274275276277278279280281282283284285286287288decl_storage! {289 trait Store for Module<T: Config> as Nft {290291 292 293 CreatedCollectionCount: u32;294 295 ChainVersion: u64;296 297 298 ItemListIndex: map hasher(blake2_128_concat) CollectionId => TokenId;299 300301 302 303 304 DestroyedCollectionCount: u32;305 306 307 pub AccountItemCount get(fn account_item_count): map hasher(twox_64_concat) T::AccountId => u32;308 309310 311 312 313 pub CollectionById get(fn collection_id) config(): map hasher(blake2_128_concat) CollectionId => Option<Collection<T>> = None;314 315 316 pub AdminList get(fn admin_list_collection): map hasher(blake2_128_concat) CollectionId => Vec<T::CrossAccountId>;317 318 319 pub WhiteList get(fn white_list): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) T::AccountId => bool;320 321322 323 324 pub Balance get(fn balance_count): double_map hasher(blake2_128_concat) CollectionId, hasher(twox_64_concat) T::AccountId => u128;325326 327 328 329 pub Allowances get(fn approved): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) (TokenId, T::AccountId, T::AccountId) => u128;330331 332 333 pub NftItemList get(fn nft_item_id) config(): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<NftItemType<T::CrossAccountId>>;334 335 pub FungibleItemList get(fn fungible_item_id) config(): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) T::AccountId => FungibleItemType;336 337 pub ReFungibleItemList get(fn refungible_item_id) config(): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<ReFungibleItemType<T::CrossAccountId>>;338 339340 341 342 pub AddressTokens get(fn address_tokens): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) T::AccountId => Vec<TokenId>;343 344345 346 347 348 pub CreateItemBasket get(fn create_item_basket): map hasher(blake2_128_concat) (CollectionId, T::AccountId) => T::BlockNumber;349 350 pub NftTransferBasket get(fn nft_transfer_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => T::BlockNumber;351 352 pub FungibleTransferBasket get(fn fungible_transfer_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(twox_64_concat) T::AccountId => T::BlockNumber;353 354 pub ReFungibleTransferBasket get(fn refungible_transfer_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => T::BlockNumber;355 356357 358 359 pub VariableMetaDataBasket get(fn variable_meta_data_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<T::BlockNumber> = None;360 }361 add_extra_genesis {362 build(|config: &GenesisConfig<T>| {363 364 for (_num, _c) in &config.collection_id {365 <Module<T>>::init_collection(_c);366 }367368 for (_num, _c, _i) in &config.nft_item_id {369 <Module<T>>::init_nft_token(*_c, _i);370 }371372 for (collection_id, account_id, fungible_item) in &config.fungible_item_id {373 <Module<T>>::init_fungible_token(*collection_id, &T::CrossAccountId::from_sub(account_id.clone()), fungible_item);374 }375376 for (_num, _c, _i) in &config.refungible_item_id {377 <Module<T>>::init_refungible_token(*_c, _i);378 }379 })380 }381}382383decl_event!(384 pub enum Event<T>385 where386 AccountId = <T as frame_system::Config>::AccountId,387 CrossAccountId = <T as Config>::CrossAccountId,388 {389 390 391 392 393 394 395 396 397 398 CollectionCreated(CollectionId, u8, AccountId),399400 401 402 403 404 405 406 407 408 409 ItemCreated(CollectionId, TokenId, CrossAccountId),410411 412 413 414 415 416 417 418 ItemDestroyed(CollectionId, TokenId),419420 421 422 423 424 425 426 427 428 429 430 431 Transfer(CollectionId, TokenId, CrossAccountId, CrossAccountId, u128),432433 434 435 436 437 438 439 440 441 442 Approved(CollectionId, TokenId, CrossAccountId, CrossAccountId, u128),443 }444);445446decl_module! {447 pub struct Module<T: Config> for enum Call448 where449 origin: T::Origin450 {451 fn deposit_event() = default;452 const CollectionAdminsLimit: u64 = COLLECTION_ADMINS_LIMIT;453 type Error = Error<T>;454455 fn on_initialize(_now: T::BlockNumber) -> Weight {456 0457 }458459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 #[weight = <SelfWeightOf<T>>::create_collection()]476 #[transactional]477 pub fn create_collection(origin,478 collection_name: Vec<u16>,479 collection_description: Vec<u16>,480 token_prefix: Vec<u8>,481 mode: CollectionMode) -> DispatchResult {482483 484 let who = ensure_signed(origin)?;485486 487 let mut imbalance = <<<T as Config>::Currency as Currency<T::AccountId>>::PositiveImbalance>::zero();488 imbalance.subsume(<<T as Config>::Currency as Currency<T::AccountId>>::deposit_creating(489 &T::TreasuryAccountId::get(),490 T::CollectionCreationPrice::get(),491 ));492 <T as Config>::Currency::settle(493 &who,494 imbalance,495 WithdrawReasons::TRANSFER,496 ExistenceRequirement::KeepAlive,497 ).map_err(|_| Error::<T>::NoPermission)?;498499 let decimal_points = match mode {500 CollectionMode::Fungible(points) => points,501 _ => 0502 };503504 let created_count = CreatedCollectionCount::get();505 let destroyed_count = DestroyedCollectionCount::get();506507 508 ensure!(created_count - destroyed_count < COLLECTION_NUMBER_LIMIT, Error::<T>::TotalCollectionsLimitExceeded);509510 511 ensure!(decimal_points <= MAX_DECIMAL_POINTS, Error::<T>::CollectionDecimalPointLimitExceeded);512 ensure!(collection_name.len() <= MAX_COLLECTION_NAME_LENGTH, Error::<T>::CollectionNameLimitExceeded);513 ensure!(collection_description.len() <= MAX_COLLECTION_DESCRIPTION_LENGTH, Error::<T>::CollectionDescriptionLimitExceeded);514 ensure!(token_prefix.len() <= MAX_TOKEN_PREFIX_LENGTH, Error::<T>::CollectionTokenPrefixLimitExceeded);515516 517 let next_id = created_count518 .checked_add(1)519 .ok_or(Error::<T>::NumOverflow)?;520521 CreatedCollectionCount::put(next_id);522523 let limits = CollectionLimits {524 sponsored_data_size: CUSTOM_DATA_LIMIT,525 ..Default::default()526 };527528 529 let new_collection = Collection {530 owner: who.clone(),531 name: collection_name,532 mode: mode.clone(),533 mint_mode: false,534 access: AccessMode::Normal,535 description: collection_description,536 decimal_points,537 token_prefix,538 offchain_schema: Vec::new(),539 schema_version: SchemaVersion::ImageURL,540 sponsorship: SponsorshipState::Disabled,541 variable_on_chain_schema: Vec::new(),542 const_on_chain_schema: Vec::new(),543 limits,544 transfers_enabled: true,545 };546547 548 <CollectionById<T>>::insert(next_id, new_collection);549550 551 Self::deposit_event(RawEvent::CollectionCreated(next_id, mode.id(), who));552553 Ok(())554 }555556 557 558 559 560 561 562 563 564 565 #[weight = <SelfWeightOf<T>>::destroy_collection()]566 #[transactional]567 pub fn destroy_collection(origin, collection_id: CollectionId) -> DispatchResult {568569 let sender = ensure_signed(origin)?;570 let collection = Self::get_collection(collection_id)?;571 Self::check_owner_permissions(&collection, &sender)?;572 if !collection.limits.owner_can_destroy {573 fail!(Error::<T>::NoPermission);574 }575576 <AddressTokens<T>>::remove_prefix(collection_id, None);577 <Allowances<T>>::remove_prefix(collection_id, None);578 <Balance<T>>::remove_prefix(collection_id, None);579 <ItemListIndex>::remove(collection_id);580 <AdminList<T>>::remove(collection_id);581 <CollectionById<T>>::remove(collection_id);582 <WhiteList<T>>::remove_prefix(collection_id, None);583584 <NftItemList<T>>::remove_prefix(collection_id, None);585 <FungibleItemList<T>>::remove_prefix(collection_id, None);586 <ReFungibleItemList<T>>::remove_prefix(collection_id, None);587588 <NftTransferBasket<T>>::remove_prefix(collection_id, None);589 <FungibleTransferBasket<T>>::remove_prefix(collection_id, None);590 <ReFungibleTransferBasket<T>>::remove_prefix(collection_id, None);591592 <VariableMetaDataBasket<T>>::remove_prefix(collection_id, None);593594 DestroyedCollectionCount::put(DestroyedCollectionCount::get()595 .checked_add(1)596 .ok_or(Error::<T>::NumOverflow)?);597598 Ok(())599 }600601 602 603 604 605 606 607 608 609 610 611 612 613 #[weight = <SelfWeightOf<T>>::add_to_white_list()]614 #[transactional]615 pub fn add_to_white_list(origin, collection_id: CollectionId, address: T::CrossAccountId) -> DispatchResult{616617 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);618 let collection = Self::get_collection(collection_id)?;619620 Self::toggle_white_list_internal(621 &sender,622 &collection,623 &address,624 true,625 )?;626627 Ok(())628 }629630 631 632 633 634 635 636 637 638 639 640 641 642 #[weight = <SelfWeightOf<T>>::remove_from_white_list()]643 #[transactional]644 pub fn remove_from_white_list(origin, collection_id: CollectionId, address: T::CrossAccountId) -> DispatchResult{645646 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);647 let collection = Self::get_collection(collection_id)?;648649 Self::toggle_white_list_internal(650 &sender,651 &collection,652 &address,653 false,654 )?;655656 Ok(())657 }658659 660 661 662 663 664 665 666 667 668 669 670 #[weight = <SelfWeightOf<T>>::set_public_access_mode()]671 #[transactional]672 pub fn set_public_access_mode(origin, collection_id: CollectionId, mode: AccessMode) -> DispatchResult673 {674 let sender = ensure_signed(origin)?;675676 let mut target_collection = Self::get_collection(collection_id)?;677 Self::check_owner_permissions(&target_collection, &sender)?;678 target_collection.access = mode;679 target_collection.save()680 }681682 683 684 685 686 687 688 689 690 691 692 693 694 695 #[weight = <SelfWeightOf<T>>::set_mint_permission()]696 #[transactional]697 pub fn set_mint_permission(origin, collection_id: CollectionId, mint_permission: bool) -> DispatchResult698 {699 let sender = ensure_signed(origin)?;700701 let mut target_collection = Self::get_collection(collection_id)?;702 Self::check_owner_permissions(&target_collection, &sender)?;703 target_collection.mint_mode = mint_permission;704 target_collection.save()705 }706707 708 709 710 711 712 713 714 715 716 717 718 #[weight = <SelfWeightOf<T>>::change_collection_owner()]719 #[transactional]720 pub fn change_collection_owner(origin, collection_id: CollectionId, new_owner: T::AccountId) -> DispatchResult {721722 let sender = ensure_signed(origin)?;723 let mut target_collection = Self::get_collection(collection_id)?;724 Self::check_owner_permissions(&target_collection, &sender)?;725 target_collection.owner = new_owner;726 target_collection.save()727 }728729 730 731 732 733 734 735 736 737 738 739 740 741 742 #[weight = <SelfWeightOf<T>>::add_collection_admin()]743 #[transactional]744 pub fn add_collection_admin(origin, collection_id: CollectionId, new_admin_id: T::CrossAccountId) -> DispatchResult {745 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);746 let collection = Self::get_collection(collection_id)?;747 Self::check_owner_or_admin_permissions(&collection, &sender)?;748 let mut admin_arr = <AdminList<T>>::get(collection_id);749750 match admin_arr.binary_search(&new_admin_id) {751 Ok(_) => {},752 Err(idx) => {753 ensure!(admin_arr.len() < COLLECTION_ADMINS_LIMIT as usize, Error::<T>::CollectionAdminsLimitExceeded);754 admin_arr.insert(idx, new_admin_id);755 <AdminList<T>>::insert(collection_id, admin_arr);756 }757 }758 Ok(())759 }760761 762 763 764 765 766 767 768 769 770 771 772 773 #[weight = <SelfWeightOf<T>>::remove_collection_admin()]774 #[transactional]775 pub fn remove_collection_admin(origin, collection_id: CollectionId, account_id: T::CrossAccountId) -> DispatchResult {776 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);777 let collection = Self::get_collection(collection_id)?;778 Self::check_owner_or_admin_permissions(&collection, &sender)?;779 let mut admin_arr = <AdminList<T>>::get(collection_id);780781 if let Ok(idx) = admin_arr.binary_search(&account_id) {782 admin_arr.remove(idx);783 <AdminList<T>>::insert(collection_id, admin_arr);784 }785 Ok(())786 }787788 789 790 791 792 793 794 795 796 797 #[weight = <SelfWeightOf<T>>::set_collection_sponsor()]798 #[transactional]799 pub fn set_collection_sponsor(origin, collection_id: CollectionId, new_sponsor: T::AccountId) -> DispatchResult {800 let sender = ensure_signed(origin)?;801 let mut target_collection = Self::get_collection(collection_id)?;802 Self::check_owner_permissions(&target_collection, &sender)?;803804 target_collection.sponsorship = SponsorshipState::Unconfirmed(new_sponsor);805 target_collection.save()806 }807808 809 810 811 812 813 814 815 #[weight = <SelfWeightOf<T>>::confirm_sponsorship()]816 #[transactional]817 pub fn confirm_sponsorship(origin, collection_id: CollectionId) -> DispatchResult {818 let sender = ensure_signed(origin)?;819820 let mut target_collection = Self::get_collection(collection_id)?;821 ensure!(822 target_collection.sponsorship.pending_sponsor() == Some(&sender),823 Error::<T>::ConfirmUnsetSponsorFail824 );825826 target_collection.sponsorship = SponsorshipState::Confirmed(sender);827 target_collection.save()828 }829830 831 832 833 834 835 836 837 838 839 #[weight = <SelfWeightOf<T>>::remove_collection_sponsor()]840 #[transactional]841 pub fn remove_collection_sponsor(origin, collection_id: CollectionId) -> DispatchResult {842 let sender = ensure_signed(origin)?;843844 let mut target_collection = Self::get_collection(collection_id)?;845 Self::check_owner_permissions(&target_collection, &sender)?;846847 target_collection.sponsorship = SponsorshipState::Disabled;848 target_collection.save()849 }850851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874875 #[weight = <SelfWeightOf<T>>::create_item(data.data_size() as u32)]876 #[transactional]877 pub fn create_item(origin, collection_id: CollectionId, owner: T::CrossAccountId, data: CreateItemData) -> DispatchResult {878 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);879 let collection = Self::get_collection(collection_id)?;880881 Self::create_item_internal(&sender, &collection, &owner, data)?;882883 collection.submit_logs()884 }885886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 #[weight = <SelfWeightOf<T>>::create_multiple_items(items_data.len() as u32)]905 #[transactional]906 pub fn create_multiple_items(origin, collection_id: CollectionId, owner: T::CrossAccountId, items_data: Vec<CreateItemData>) -> DispatchResult {907908 ensure!(!items_data.is_empty(), Error::<T>::EmptyArgument);909 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);910 let collection = Self::get_collection(collection_id)?;911912 Self::create_multiple_items_internal(&sender, &collection, &owner, items_data)?;913914 collection.submit_logs()915 }916917 918919 920 921 922 923 924 925 926 927 928 929 930 #[weight = <SelfWeightOf<T>>::set_transfers_enabled_flag()]931 #[transactional]932 pub fn set_transfers_enabled_flag(origin, collection_id: CollectionId, value: bool) -> DispatchResult {933934 let sender = ensure_signed(origin)?;935 let mut target_collection = Self::get_collection(collection_id)?;936937 Self::check_owner_permissions(&target_collection, &sender)?;938939 target_collection.transfers_enabled = value;940 target_collection.save()941 }942943 944 945 946 947 948 949 950 951 952 953 954 955 956 #[weight = <SelfWeightOf<T>>::burn_item()]957 #[transactional]958 pub fn burn_item(origin, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {959960 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);961 let target_collection = Self::get_collection(collection_id)?;962963 Self::burn_item_internal(&sender, &target_collection, item_id, value)?;964965 target_collection.submit_logs()966 }967968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 #[weight = <SelfWeightOf<T>>::transfer()]992 #[transactional]993 pub fn transfer(origin, recipient: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {994 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);995 let collection = Self::get_collection(collection_id)?;996997 Self::transfer_internal(&sender, &recipient, &collection, item_id, value)?;998999 collection.submit_logs()1000 }10011002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 #[weight = <SelfWeightOf<T>>::approve()]1018 #[transactional]1019 pub fn approve(origin, spender: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, amount: u128) -> DispatchResult {1020 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);1021 let collection = Self::get_collection(collection_id)?;10221023 Self::approve_internal(&sender, &spender, &collection, item_id, amount)?;10241025 collection.submit_logs()1026 }10271028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 #[weight = <SelfWeightOf<T>>::transfer_from()]1048 #[transactional]1049 pub fn transfer_from(origin, from: T::CrossAccountId, recipient: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, value: u128 ) -> DispatchResult {1050 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);1051 let collection = Self::get_collection(collection_id)?;10521053 Self::transfer_from_internal(&sender, &from, &recipient, &collection, item_id, value)?;10541055 collection.submit_logs()1056 }1057 1058 1059 1060 1061 10621063 10641065 10661067 1068 10691070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 #[weight = <SelfWeightOf<T>>::set_variable_meta_data(data.len() as u32)]1083 #[transactional]1084 pub fn set_variable_meta_data (1085 origin,1086 collection_id: CollectionId,1087 item_id: TokenId,1088 data: Vec<u8>1089 ) -> DispatchResult {1090 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);10911092 let collection = Self::get_collection(collection_id)?;10931094 Self::set_variable_meta_data_internal(&sender, &collection, item_id, data)?;10951096 Ok(())1097 }10981099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 #[weight = <SelfWeightOf<T>>::set_schema_version()]1114 #[transactional]1115 pub fn set_schema_version(1116 origin,1117 collection_id: CollectionId,1118 version: SchemaVersion1119 ) -> DispatchResult {1120 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);1121 let mut target_collection = Self::get_collection(collection_id)?;1122 Self::check_owner_or_admin_permissions(&target_collection, &sender)?;1123 target_collection.schema_version = version;1124 target_collection.save()1125 }11261127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 #[weight = <SelfWeightOf<T>>::set_offchain_schema(schema.len() as u32)]1140 #[transactional]1141 pub fn set_offchain_schema(1142 origin,1143 collection_id: CollectionId,1144 schema: Vec<u8>1145 ) -> DispatchResult {1146 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);1147 let mut target_collection = Self::get_collection(collection_id)?;1148 Self::check_owner_or_admin_permissions(&target_collection, &sender)?;11491150 1151 ensure!(schema.len() as u32 <= OFFCHAIN_SCHEMA_LIMIT, "");11521153 target_collection.offchain_schema = schema;1154 target_collection.save()1155 }11561157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 #[weight = <SelfWeightOf<T>>::set_const_on_chain_schema(schema.len() as u32)]1170 #[transactional]1171 pub fn set_const_on_chain_schema (1172 origin,1173 collection_id: CollectionId,1174 schema: Vec<u8>1175 ) -> DispatchResult {1176 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);1177 let mut target_collection = Self::get_collection(collection_id)?;1178 Self::check_owner_or_admin_permissions(&target_collection, &sender)?;11791180 1181 ensure!(schema.len() as u32 <= CONST_ON_CHAIN_SCHEMA_LIMIT, "");11821183 target_collection.const_on_chain_schema = schema;1184 target_collection.save()1185 }11861187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 #[weight = <SelfWeightOf<T>>::set_const_on_chain_schema(schema.len() as u32)]1200 #[transactional]1201 pub fn set_variable_on_chain_schema (1202 origin,1203 collection_id: CollectionId,1204 schema: Vec<u8>1205 ) -> DispatchResult {1206 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);1207 let mut target_collection = Self::get_collection(collection_id)?;1208 Self::check_owner_or_admin_permissions(&target_collection, &sender)?;12091210 1211 ensure!(schema.len() as u32 <= VARIABLE_ON_CHAIN_SCHEMA_LIMIT, "");12121213 target_collection.variable_on_chain_schema = schema;1214 target_collection.save()1215 }12161217 #[weight = <SelfWeightOf<T>>::set_collection_limits()]1218 #[transactional]1219 pub fn set_collection_limits(1220 origin,1221 collection_id: u32,1222 new_limits: CollectionLimits<T::BlockNumber>,1223 ) -> DispatchResult {1224 let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);1225 let mut target_collection = Self::get_collection(collection_id)?;1226 Self::check_owner_permissions(&target_collection, sender.as_sub())?;1227 let old_limits = &target_collection.limits;12281229 1230 ensure!(new_limits.sponsor_transfer_timeout <= MAX_SPONSOR_TIMEOUT &&1231 new_limits.account_token_ownership_limit <= MAX_TOKEN_OWNERSHIP &&1232 new_limits.sponsored_data_size <= CUSTOM_DATA_LIMIT,1233 Error::<T>::CollectionLimitBoundsExceeded);12341235 1236 ensure!(old_limits.token_limit >= new_limits.token_limit, Error::<T>::CollectionTokenLimitExceeded);1237 ensure!(new_limits.token_limit > 0, Error::<T>::CollectionTokenLimitExceeded);12381239 ensure!(1240 (old_limits.owner_can_transfer || !new_limits.owner_can_transfer) &&1241 (old_limits.owner_can_destroy || !new_limits.owner_can_destroy),1242 Error::<T>::OwnerPermissionsCantBeReverted,1243 );12441245 target_collection.limits = new_limits;12461247 target_collection.save()1248 }1249 }1250}12511252impl<T: Config> Module<T> {1253 pub fn create_item_internal(1254 sender: &T::CrossAccountId,1255 collection: &CollectionHandle<T>,1256 owner: &T::CrossAccountId,1257 data: CreateItemData,1258 ) -> DispatchResult {1259 ensure!(1260 owner != &T::CrossAccountId::from_eth(H160([0; 20])),1261 Error::<T>::AddressIsZero1262 );12631264 Self::can_create_items_in_collection(collection, sender, owner, 1)?;1265 Self::validate_create_item_args(collection, &data)?;1266 Self::create_item_no_validation(collection, owner, data)?;12671268 Ok(())1269 }12701271 pub fn transfer_internal(1272 sender: &T::CrossAccountId,1273 recipient: &T::CrossAccountId,1274 target_collection: &CollectionHandle<T>,1275 item_id: TokenId,1276 value: u128,1277 ) -> DispatchResult {1278 ensure!(1279 recipient != &T::CrossAccountId::from_eth(H160([0; 20])),1280 Error::<T>::AddressIsZero1281 );12821283 1284 Self::is_correct_transfer(target_collection, recipient)?;12851286 1287 ensure!(1288 Self::is_item_owner(sender, target_collection, item_id)?1289 || Self::is_owner_or_admin_permissions(target_collection, sender)?,1290 Error::<T>::NoPermission1291 );12921293 if target_collection.access == AccessMode::WhiteList {1294 Self::check_white_list(target_collection, sender)?;1295 Self::check_white_list(target_collection, recipient)?;1296 }12971298 match target_collection.mode {1299 CollectionMode::NFT => Self::transfer_nft(1300 target_collection,1301 item_id,1302 sender.clone(),1303 recipient.clone(),1304 )?,1305 CollectionMode::Fungible(_) => {1306 Self::transfer_fungible(target_collection, value, sender, recipient)?1307 }1308 CollectionMode::ReFungible => Self::transfer_refungible(1309 target_collection,1310 item_id,1311 value,1312 sender.clone(),1313 recipient.clone(),1314 )?,1315 _ => (),1316 };13171318 Self::deposit_event(RawEvent::Transfer(1319 target_collection.id,1320 item_id,1321 sender.clone(),1322 recipient.clone(),1323 value,1324 ));13251326 Ok(())1327 }13281329 pub fn approve_internal(1330 sender: &T::CrossAccountId,1331 spender: &T::CrossAccountId,1332 collection: &CollectionHandle<T>,1333 item_id: TokenId,1334 amount: u128,1335 ) -> DispatchResult {1336 Self::token_exists(collection, item_id)?;13371338 1339 let bypasses_limits = collection.limits.owner_can_transfer1340 && Self::is_owner_or_admin_permissions(collection, sender)?;13411342 let allowance_limit = if bypasses_limits {1343 None1344 } else if let Some(amount) = Self::owned_amount(sender, collection, item_id)? {1345 Some(amount)1346 } else {1347 fail!(Error::<T>::NoPermission);1348 };13491350 if collection.access == AccessMode::WhiteList {1351 Self::check_white_list(collection, sender)?;1352 Self::check_white_list(collection, spender)?;1353 }13541355 collection.consume_sload()?;1356 let allowance: u128 = amount1357 .checked_add(<Allowances<T>>::get(1358 collection.id,1359 (item_id, sender.as_sub(), spender.as_sub()),1360 ))1361 .ok_or(Error::<T>::NumOverflow)?;1362 if let Some(limit) = allowance_limit {1363 ensure!(limit >= allowance, Error::<T>::TokenValueTooLow);1364 }1365 collection.consume_sstore()?;1366 <Allowances<T>>::insert(1367 collection.id,1368 (item_id, sender.as_sub(), spender.as_sub()),1369 allowance,1370 );13711372 if matches!(collection.mode, CollectionMode::NFT) {1373 1374 collection.log(ERC721Events::Approval {1375 owner: *sender.as_eth(),1376 approved: *spender.as_eth(),1377 token_id: item_id.into(),1378 })?;1379 }13801381 if matches!(collection.mode, CollectionMode::Fungible(_)) {1382 1383 collection.log(ERC20Events::Approval {1384 owner: *sender.as_eth(),1385 spender: *spender.as_eth(),1386 value: allowance.into(),1387 })?;1388 }13891390 Self::deposit_event(RawEvent::Approved(1391 collection.id,1392 item_id,1393 sender.clone(),1394 spender.clone(),1395 allowance,1396 ));1397 Ok(())1398 }13991400 pub fn transfer_from_internal(1401 sender: &T::CrossAccountId,1402 from: &T::CrossAccountId,1403 recipient: &T::CrossAccountId,1404 collection: &CollectionHandle<T>,1405 item_id: TokenId,1406 amount: u128,1407 ) -> DispatchResult {1408 if sender == from {1409 1410 return Self::transfer_internal(from, recipient, collection, item_id, amount);1411 }14121413 1414 collection.consume_sload()?;1415 let approval: u128 =1416 <Allowances<T>>::get(collection.id, (item_id, from.as_sub(), sender.as_sub()));14171418 1419 Self::is_correct_transfer(collection, recipient)?;14201421 1422 ensure!(1423 approval >= amount1424 || (collection.limits.owner_can_transfer1425 && Self::is_owner_or_admin_permissions(collection, sender)?),1426 Error::<T>::NoPermission1427 );14281429 if collection.access == AccessMode::WhiteList {1430 Self::check_white_list(collection, sender)?;1431 Self::check_white_list(collection, recipient)?;1432 }14331434 1435 let allowance = approval.saturating_sub(amount);1436 collection.consume_sstore()?;1437 if allowance > 0 {1438 <Allowances<T>>::insert(1439 collection.id,1440 (item_id, from.as_sub(), sender.as_sub()),1441 allowance,1442 );1443 } else {1444 <Allowances<T>>::remove(collection.id, (item_id, from.as_sub(), sender.as_sub()));1445 }14461447 match collection.mode {1448 CollectionMode::NFT => {1449 Self::transfer_nft(collection, item_id, from.clone(), recipient.clone())?1450 }1451 CollectionMode::Fungible(_) => {1452 Self::transfer_fungible(collection, amount, from, recipient)?1453 }1454 CollectionMode::ReFungible => Self::transfer_refungible(1455 collection,1456 item_id,1457 amount,1458 from.clone(),1459 recipient.clone(),1460 )?,1461 _ => (),1462 };14631464 if matches!(collection.mode, CollectionMode::Fungible(_)) {1465 collection.log(ERC20Events::Approval {1466 owner: *from.as_eth(),1467 spender: *sender.as_eth(),1468 value: allowance.into(),1469 })?;1470 }14711472 Ok(())1473 }14741475 pub fn set_variable_meta_data_internal(1476 sender: &T::CrossAccountId,1477 collection: &CollectionHandle<T>,1478 item_id: TokenId,1479 data: Vec<u8>,1480 ) -> DispatchResult {1481 Self::token_exists(collection, item_id)?;14821483 ensure!(1484 CUSTOM_DATA_LIMIT >= data.len() as u32,1485 Error::<T>::TokenVariableDataLimitExceeded1486 );14871488 1489 ensure!(1490 Self::is_item_owner(sender, collection, item_id)?1491 || Self::is_owner_or_admin_permissions(collection, sender)?,1492 Error::<T>::NoPermission1493 );14941495 match collection.mode {1496 CollectionMode::NFT => Self::set_nft_variable_data(collection, item_id, data)?,1497 CollectionMode::ReFungible => {1498 Self::set_re_fungible_variable_data(collection, item_id, data)?1499 }1500 CollectionMode::Fungible(_) => fail!(Error::<T>::CantStoreMetadataInFungibleTokens),1501 _ => fail!(Error::<T>::UnexpectedCollectionType),1502 };15031504 Ok(())1505 }15061507 pub fn get_variable_metadata(1508 collection: &CollectionHandle<T>,1509 item_id: TokenId,1510 ) -> Result<Vec<u8>, DispatchError> {1511 Ok(match collection.mode {1512 CollectionMode::NFT => {1513 <NftItemList<T>>::get(collection.id, item_id)1514 .ok_or(Error::<T>::TokenNotFound)?1515 .variable_data1516 }1517 CollectionMode::ReFungible => {1518 <ReFungibleItemList<T>>::get(collection.id, item_id)1519 .ok_or(Error::<T>::TokenNotFound)?1520 .variable_data1521 }1522 _ => fail!(Error::<T>::UnexpectedCollectionType),1523 })1524 }15251526 pub fn create_multiple_items_internal(1527 sender: &T::CrossAccountId,1528 collection: &CollectionHandle<T>,1529 owner: &T::CrossAccountId,1530 items_data: Vec<CreateItemData>,1531 ) -> DispatchResult {1532 Self::can_create_items_in_collection(collection, sender, owner, items_data.len() as u32)?;15331534 for data in &items_data {1535 Self::validate_create_item_args(collection, data)?;1536 }1537 for data in &items_data {1538 Self::create_item_no_validation(collection, owner, data.clone())?;1539 }15401541 Ok(())1542 }15431544 pub fn burn_item_internal(1545 sender: &T::CrossAccountId,1546 collection: &CollectionHandle<T>,1547 item_id: TokenId,1548 value: u128,1549 ) -> DispatchResult {1550 ensure!(1551 Self::is_item_owner(sender, collection, item_id)?1552 || (collection.limits.owner_can_transfer1553 && Self::is_owner_or_admin_permissions(collection, sender)?),1554 Error::<T>::NoPermission1555 );15561557 if collection.access == AccessMode::WhiteList {1558 Self::check_white_list(collection, sender)?;1559 }15601561 match collection.mode {1562 CollectionMode::NFT => Self::burn_nft_item(collection, item_id)?,1563 CollectionMode::Fungible(_) => Self::burn_fungible_item(sender, collection, value)?,1564 CollectionMode::ReFungible => Self::burn_refungible_item(collection, item_id, sender)?,1565 _ => (),1566 };15671568 Ok(())1569 }15701571 pub fn toggle_white_list_internal(1572 sender: &T::CrossAccountId,1573 collection: &CollectionHandle<T>,1574 address: &T::CrossAccountId,1575 whitelisted: bool,1576 ) -> DispatchResult {1577 Self::check_owner_or_admin_permissions(collection, sender)?;15781579 if whitelisted {1580 <WhiteList<T>>::insert(collection.id, address.as_sub(), true);1581 } else {1582 <WhiteList<T>>::remove(collection.id, address.as_sub());1583 }15841585 Ok(())1586 }15871588 fn is_correct_transfer(1589 collection: &CollectionHandle<T>,1590 recipient: &T::CrossAccountId,1591 ) -> DispatchResult {1592 let collection_id = collection.id;15931594 1595 collection.consume_sload()?;1596 let account_items: u32 =1597 <AddressTokens<T>>::get(collection_id, recipient.as_sub()).len() as u32;1598 ensure!(1599 collection.limits.account_token_ownership_limit > account_items,1600 Error::<T>::AccountTokenLimitExceeded1601 );16021603 1604 ensure!(collection.transfers_enabled, Error::<T>::TransferNotAllowed);16051606 Ok(())1607 }16081609 fn can_create_items_in_collection(1610 collection: &CollectionHandle<T>,1611 sender: &T::CrossAccountId,1612 owner: &T::CrossAccountId,1613 amount: u32,1614 ) -> DispatchResult {1615 let collection_id = collection.id;16161617 1618 let total_items: u32 = ItemListIndex::get(collection_id)1619 .checked_add(amount)1620 .ok_or(Error::<T>::CollectionTokenLimitExceeded)?;1621 let account_items: u32 = (<AddressTokens<T>>::get(collection_id, owner.as_sub()).len()1622 as u32)1623 .checked_add(amount)1624 .ok_or(Error::<T>::AccountTokenLimitExceeded)?;1625 ensure!(1626 collection.limits.token_limit >= total_items,1627 Error::<T>::CollectionTokenLimitExceeded1628 );1629 ensure!(1630 collection.limits.account_token_ownership_limit >= account_items,1631 Error::<T>::AccountTokenLimitExceeded1632 );16331634 if !Self::is_owner_or_admin_permissions(collection, sender)? {1635 ensure!(collection.mint_mode, Error::<T>::PublicMintingNotAllowed);1636 Self::check_white_list(collection, owner)?;1637 Self::check_white_list(collection, sender)?;1638 }16391640 Ok(())1641 }16421643 fn validate_create_item_args(1644 target_collection: &CollectionHandle<T>,1645 data: &CreateItemData,1646 ) -> DispatchResult {1647 match target_collection.mode {1648 CollectionMode::NFT => {1649 if !matches!(data, CreateItemData::NFT(_)) {1650 fail!(Error::<T>::NotNftDataUsedToMintNftCollectionToken);1651 }1652 }1653 CollectionMode::Fungible(_) => {1654 if !matches!(data, CreateItemData::Fungible(_)) {1655 fail!(Error::<T>::NotFungibleDataUsedToMintFungibleCollectionToken);1656 }1657 }1658 CollectionMode::ReFungible => {1659 if let CreateItemData::ReFungible(data) = data {1660 1661 ensure!(1662 data.pieces <= MAX_REFUNGIBLE_PIECES,1663 Error::<T>::WrongRefungiblePieces1664 );1665 ensure!(data.pieces > 0, Error::<T>::WrongRefungiblePieces);1666 } else {1667 fail!(Error::<T>::NotReFungibleDataUsedToMintReFungibleCollectionToken);1668 }1669 }1670 _ => {1671 fail!(Error::<T>::UnexpectedCollectionType);1672 }1673 };16741675 Ok(())1676 }16771678 fn create_item_no_validation(1679 collection: &CollectionHandle<T>,1680 owner: &T::CrossAccountId,1681 data: CreateItemData,1682 ) -> DispatchResult {1683 match data {1684 CreateItemData::NFT(data) => {1685 let item = NftItemType {1686 owner: owner.clone(),1687 const_data: data.const_data.into_inner(),1688 variable_data: data.variable_data.into_inner(),1689 };16901691 Self::add_nft_item(collection, item)?;1692 }1693 CreateItemData::Fungible(data) => {1694 Self::add_fungible_item(collection, owner, data.value)?;1695 }1696 CreateItemData::ReFungible(data) => {1697 let owner_list = vec![Ownership {1698 owner: owner.clone(),1699 fraction: data.pieces,1700 }];17011702 let item = ReFungibleItemType {1703 owner: owner_list,1704 const_data: data.const_data.into_inner(),1705 variable_data: data.variable_data.into_inner(),1706 };17071708 Self::add_refungible_item(collection, item)?;1709 }1710 };17111712 Ok(())1713 }17141715 fn add_fungible_item(1716 collection: &CollectionHandle<T>,1717 owner: &T::CrossAccountId,1718 value: u128,1719 ) -> DispatchResult {1720 let collection_id = collection.id;17211722 1723 collection.consume_sload()?;1724 let balance: u128 = <FungibleItemList<T>>::get(collection_id, owner.as_sub()).value;17251726 1727 let item = FungibleItemType {1728 value: balance.checked_add(value).ok_or(Error::<T>::NumOverflow)?,1729 };1730 collection.consume_sstore()?;1731 <FungibleItemList<T>>::insert(collection_id, owner.as_sub(), item);17321733 1734 collection.consume_sload()?;1735 let new_balance = <Balance<T>>::get(collection_id, owner.as_sub())1736 .checked_add(value)1737 .ok_or(Error::<T>::NumOverflow)?;1738 collection.consume_sstore()?;1739 <Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);17401741 collection.log(ERC20Events::Transfer {1742 from: H160::default(),1743 to: *owner.as_eth(),1744 value: value.into(),1745 })?;1746 Self::deposit_event(RawEvent::ItemCreated(collection_id, 0, owner.clone()));1747 Ok(())1748 }17491750 fn add_refungible_item(1751 collection: &CollectionHandle<T>,1752 item: ReFungibleItemType<T::CrossAccountId>,1753 ) -> DispatchResult {1754 let collection_id = collection.id;17551756 let current_index = <ItemListIndex>::get(collection_id)1757 .checked_add(1)1758 .ok_or(Error::<T>::NumOverflow)?;1759 let itemcopy = item.clone();17601761 ensure!(item.owner.len() == 1, Error::<T>::BadCreateRefungibleCall,);1762 let item_owner = item.owner.first().expect("only one owner is defined");17631764 let value = item_owner.fraction;1765 let owner = item_owner.owner.clone();17661767 Self::add_token_index(collection, current_index, &owner)?;17681769 <ItemListIndex>::insert(collection_id, current_index);1770 <ReFungibleItemList<T>>::insert(collection_id, current_index, itemcopy);17711772 1773 let new_balance = <Balance<T>>::get(collection_id, owner.as_sub())1774 .checked_add(value)1775 .ok_or(Error::<T>::NumOverflow)?;1776 <Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);17771778 Self::deposit_event(RawEvent::ItemCreated(collection_id, current_index, owner));1779 Ok(())1780 }17811782 fn add_nft_item(1783 collection: &CollectionHandle<T>,1784 item: NftItemType<T::CrossAccountId>,1785 ) -> DispatchResult {1786 let collection_id = collection.id;17871788 let current_index = <ItemListIndex>::get(collection_id)1789 .checked_add(1)1790 .ok_or(Error::<T>::NumOverflow)?;17911792 let item_owner = item.owner.clone();1793 Self::add_token_index(collection, current_index, &item.owner)?;17941795 <ItemListIndex>::insert(collection_id, current_index);1796 <NftItemList<T>>::insert(collection_id, current_index, item);17971798 1799 let new_balance = <Balance<T>>::get(collection_id, item_owner.as_sub())1800 .checked_add(1)1801 .ok_or(Error::<T>::NumOverflow)?;1802 <Balance<T>>::insert(collection_id, item_owner.as_sub(), new_balance);18031804 collection.log(ERC721Events::Transfer {1805 from: H160::default(),1806 to: *item_owner.as_eth(),1807 token_id: current_index.into(),1808 })?;1809 Self::deposit_event(RawEvent::ItemCreated(1810 collection_id,1811 current_index,1812 item_owner,1813 ));1814 Ok(())1815 }18161817 fn burn_refungible_item(1818 collection: &CollectionHandle<T>,1819 item_id: TokenId,1820 owner: &T::CrossAccountId,1821 ) -> DispatchResult {1822 let collection_id = collection.id;18231824 let mut token = <ReFungibleItemList<T>>::get(collection_id, item_id)1825 .ok_or(Error::<T>::TokenNotFound)?;1826 let rft_balance = token1827 .owner1828 .iter()1829 .find(|&i| i.owner == *owner)1830 .ok_or(Error::<T>::TokenNotFound)?;1831 Self::remove_token_index(collection, item_id, owner)?;18321833 1834 let new_balance = <Balance<T>>::get(collection_id, rft_balance.owner.as_sub())1835 .checked_sub(rft_balance.fraction)1836 .ok_or(Error::<T>::NumOverflow)?;1837 <Balance<T>>::insert(collection_id, rft_balance.owner.as_sub(), new_balance);18381839 1840 let index = token1841 .owner1842 .iter()1843 .position(|i| i.owner == *owner)1844 .expect("owned item is exists");1845 token.owner.remove(index);1846 let owner_count = token.owner.len();18471848 1849 if owner_count == 0 {1850 <ReFungibleItemList<T>>::remove(collection_id, item_id);1851 <VariableMetaDataBasket<T>>::remove(collection_id, item_id);1852 } else {1853 <ReFungibleItemList<T>>::insert(collection_id, item_id, token);1854 }18551856 Ok(())1857 }18581859 fn burn_nft_item(collection: &CollectionHandle<T>, item_id: TokenId) -> DispatchResult {1860 let collection_id = collection.id;18611862 let item =1863 <NftItemList<T>>::get(collection_id, item_id).ok_or(Error::<T>::TokenNotFound)?;1864 Self::remove_token_index(collection, item_id, &item.owner)?;18651866 1867 let new_balance = <Balance<T>>::get(collection_id, item.owner.as_sub())1868 .checked_sub(1)1869 .ok_or(Error::<T>::NumOverflow)?;1870 <Balance<T>>::insert(collection_id, item.owner.as_sub(), new_balance);1871 <NftItemList<T>>::remove(collection_id, item_id);1872 <VariableMetaDataBasket<T>>::remove(collection_id, item_id);18731874 collection.log(ERC721Events::Transfer {1875 from: *item.owner.as_eth(),1876 to: H160::default(),1877 token_id: item_id.into(),1878 })?;1879 Self::deposit_event(RawEvent::ItemDestroyed(collection.id, item_id));1880 Ok(())1881 }18821883 fn burn_fungible_item(1884 owner: &T::CrossAccountId,1885 collection: &CollectionHandle<T>,1886 value: u128,1887 ) -> DispatchResult {1888 let collection_id = collection.id;18891890 let mut balance = <FungibleItemList<T>>::get(collection_id, owner.as_sub());1891 ensure!(balance.value >= value, Error::<T>::TokenValueNotEnough);18921893 1894 let new_balance = <Balance<T>>::get(collection_id, owner.as_sub())1895 .checked_sub(value)1896 .ok_or(Error::<T>::NumOverflow)?;1897 <Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);18981899 if balance.value - value > 0 {1900 balance.value -= value;1901 <FungibleItemList<T>>::insert(collection_id, owner.as_sub(), balance);1902 } else {1903 <FungibleItemList<T>>::remove(collection_id, owner.as_sub());1904 }19051906 collection.log(ERC20Events::Transfer {1907 from: *owner.as_eth(),1908 to: H160::default(),1909 value: value.into(),1910 })?;1911 Ok(())1912 }19131914 pub fn get_collection(1915 collection_id: CollectionId,1916 ) -> Result<CollectionHandle<T>, sp_runtime::DispatchError> {1917 Ok(<CollectionHandle<T>>::get(collection_id).ok_or(Error::<T>::CollectionNotFound)?)1918 }19191920 fn check_owner_permissions(1921 target_collection: &CollectionHandle<T>,1922 subject: &T::AccountId,1923 ) -> DispatchResult {1924 ensure!(1925 *subject == target_collection.owner,1926 Error::<T>::NoPermission1927 );19281929 Ok(())1930 }19311932 fn is_owner_or_admin_permissions(1933 collection: &CollectionHandle<T>,1934 subject: &T::CrossAccountId,1935 ) -> Result<bool, DispatchError> {1936 collection.consume_sload()?;1937 Ok(*subject.as_sub() == collection.owner1938 || <AdminList<T>>::get(collection.id).contains(subject))1939 }19401941 fn check_owner_or_admin_permissions(1942 collection: &CollectionHandle<T>,1943 subject: &T::CrossAccountId,1944 ) -> DispatchResult {1945 ensure!(1946 Self::is_owner_or_admin_permissions(collection, subject)?,1947 Error::<T>::NoPermission1948 );19491950 Ok(())1951 }19521953 fn owned_amount(1954 subject: &T::CrossAccountId,1955 collection: &CollectionHandle<T>,1956 item_id: TokenId,1957 ) -> Result<Option<u128>, DispatchError> {1958 collection.consume_sload()?;1959 Ok(Self::owned_amount_unchecked(subject, collection, item_id))1960 }19611962 fn owned_amount_unchecked(1963 subject: &T::CrossAccountId,1964 target_collection: &CollectionHandle<T>,1965 item_id: TokenId,1966 ) -> Option<u128> {1967 let collection_id = target_collection.id;19681969 match target_collection.mode {1970 CollectionMode::NFT => {1971 (<NftItemList<T>>::get(collection_id, item_id)?.owner == *subject).then(|| 1)1972 }1973 CollectionMode::Fungible(_) => {1974 Some(<FungibleItemList<T>>::get(collection_id, &subject.as_sub()).value)1975 }1976 CollectionMode::ReFungible => <ReFungibleItemList<T>>::get(collection_id, item_id)?1977 .owner1978 .iter()1979 .find(|i| i.owner == *subject)1980 .map(|i| i.fraction),1981 CollectionMode::Invalid => None,1982 }1983 }19841985 fn is_item_owner(1986 subject: &T::CrossAccountId,1987 target_collection: &CollectionHandle<T>,1988 item_id: TokenId,1989 ) -> Result<bool, DispatchError> {1990 Ok(match target_collection.mode {1991 CollectionMode::Fungible(_) => true,1992 _ => Self::owned_amount(subject, target_collection, item_id)?.is_some(),1993 })1994 }19951996 fn check_white_list(1997 collection: &CollectionHandle<T>,1998 address: &T::CrossAccountId,1999 ) -> DispatchResult {2000 collection.consume_sload()?;2001 ensure!(2002 <WhiteList<T>>::contains_key(collection.id, address.as_sub()),2003 Error::<T>::AddresNotInWhiteList,2004 );2005 Ok(())2006 }20072008 2009 2010 fn token_exists(target_collection: &CollectionHandle<T>, item_id: TokenId) -> DispatchResult {2011 let collection_id = target_collection.id;2012 let exists = match target_collection.mode {2013 CollectionMode::NFT => <NftItemList<T>>::contains_key(collection_id, item_id),2014 CollectionMode::Fungible(_) => true,2015 CollectionMode::ReFungible => {2016 <ReFungibleItemList<T>>::contains_key(collection_id, item_id)2017 }2018 _ => false,2019 };20202021 ensure!(exists, Error::<T>::TokenNotFound);2022 Ok(())2023 }20242025 fn transfer_fungible(2026 collection: &CollectionHandle<T>,2027 value: u128,2028 owner: &T::CrossAccountId,2029 recipient: &T::CrossAccountId,2030 ) -> DispatchResult {2031 let collection_id = collection.id;20322033 collection.consume_sload()?;2034 collection.consume_sload()?;2035 let mut recipient_balance = <FungibleItemList<T>>::get(collection_id, recipient.as_sub());2036 let mut balance = <FungibleItemList<T>>::get(collection_id, owner.as_sub());20372038 recipient_balance.value = recipient_balance2039 .value2040 .checked_add(value)2041 .ok_or(Error::<T>::NumOverflow)?;2042 balance.value = balance2043 .value2044 .checked_sub(value)2045 .ok_or(Error::<T>::TokenValueTooLow)?;20462047 2048 collection.consume_sstore()?;2049 collection.consume_sstore()?;2050 if balance.value != 0 {2051 <Balance<T>>::insert(collection_id, owner.as_sub(), balance.value);2052 } else {2053 <Balance<T>>::remove(collection_id, owner.as_sub());2054 }2055 <Balance<T>>::insert(collection_id, recipient.as_sub(), recipient_balance.value);20562057 2058 collection.consume_sstore()?;2059 collection.consume_sstore()?;2060 if balance.value != 0 {2061 <FungibleItemList<T>>::insert(collection_id, owner.as_sub(), balance);2062 } else {2063 <FungibleItemList<T>>::remove(collection_id, owner.as_sub());2064 }2065 <FungibleItemList<T>>::insert(collection_id, recipient.as_sub(), recipient_balance);20662067 collection.log(ERC20Events::Transfer {2068 from: *owner.as_eth(),2069 to: *recipient.as_eth(),2070 value: value.into(),2071 })?;2072 Self::deposit_event(RawEvent::Transfer(2073 collection.id,2074 1,2075 owner.clone(),2076 recipient.clone(),2077 value,2078 ));20792080 Ok(())2081 }20822083 fn transfer_refungible(2084 collection: &CollectionHandle<T>,2085 item_id: TokenId,2086 value: u128,2087 owner: T::CrossAccountId,2088 new_owner: T::CrossAccountId,2089 ) -> DispatchResult {2090 let collection_id = collection.id;2091 collection.consume_sload()?;2092 let full_item = <ReFungibleItemList<T>>::get(collection_id, item_id)2093 .ok_or(Error::<T>::TokenNotFound)?;20942095 let item = full_item2096 .owner2097 .iter()2098 .find(|i| i.owner == owner)2099 .ok_or(Error::<T>::TokenNotFound)?;2100 let amount = item.fraction;21012102 ensure!(amount >= value, Error::<T>::TokenValueTooLow);21032104 collection.consume_sload()?;2105 2106 let balance_old_owner = <Balance<T>>::get(collection_id, item.owner.as_sub())2107 .checked_sub(value)2108 .ok_or(Error::<T>::NumOverflow)?;2109 collection.consume_sstore()?;2110 <Balance<T>>::insert(collection_id, item.owner.as_sub(), balance_old_owner);21112112 collection.consume_sload()?;2113 let balance_new_owner = <Balance<T>>::get(collection_id, new_owner.as_sub())2114 .checked_add(value)2115 .ok_or(Error::<T>::NumOverflow)?;2116 collection.consume_sstore()?;2117 <Balance<T>>::insert(collection_id, new_owner.as_sub(), balance_new_owner);21182119 let old_owner = item.owner.clone();2120 let new_owner_has_account = full_item.owner.iter().any(|i| i.owner == new_owner);21212122 let mut new_full_item = full_item.clone();2123 2124 if amount == value && !new_owner_has_account {2125 2126 2127 new_full_item2128 .owner2129 .iter_mut()2130 .find(|i| i.owner == owner)2131 .expect("old owner does present in refungible")2132 .owner = new_owner.clone();2133 collection.consume_sstore()?;2134 <ReFungibleItemList<T>>::insert(collection_id, item_id, new_full_item);21352136 2137 Self::move_token_index(collection, item_id, &old_owner, &new_owner)?;2138 } else {2139 new_full_item2140 .owner2141 .iter_mut()2142 .find(|i| i.owner == owner)2143 .expect("old owner does present in refungible")2144 .fraction -= value;21452146 2147 if new_owner_has_account {2148 2149 new_full_item2150 .owner2151 .iter_mut()2152 .find(|i| i.owner == new_owner)2153 .expect("new owner has account")2154 .fraction += value;2155 } else {2156 2157 new_full_item.owner.push(Ownership {2158 owner: new_owner.clone(),2159 fraction: value,2160 });2161 Self::add_token_index(collection, item_id, &new_owner)?;2162 }21632164 collection.consume_sstore()?;2165 <ReFungibleItemList<T>>::insert(collection_id, item_id, new_full_item);2166 }21672168 Self::deposit_event(RawEvent::Transfer(2169 collection.id,2170 item_id,2171 owner,2172 new_owner,2173 amount,2174 ));21752176 Ok(())2177 }21782179 fn transfer_nft(2180 collection: &CollectionHandle<T>,2181 item_id: TokenId,2182 sender: T::CrossAccountId,2183 new_owner: T::CrossAccountId,2184 ) -> DispatchResult {2185 let collection_id = collection.id;2186 collection.consume_sload()?;2187 let mut item =2188 <NftItemList<T>>::get(collection_id, item_id).ok_or(Error::<T>::TokenNotFound)?;21892190 ensure!(sender == item.owner, Error::<T>::MustBeTokenOwner);21912192 collection.consume_sload()?;2193 2194 let balance_old_owner = <Balance<T>>::get(collection_id, item.owner.as_sub())2195 .checked_sub(1)2196 .ok_or(Error::<T>::NumOverflow)?;2197 collection.consume_sstore()?;2198 <Balance<T>>::insert(collection_id, item.owner.as_sub(), balance_old_owner);21992200 collection.consume_sload()?;2201 let balance_new_owner = <Balance<T>>::get(collection_id, new_owner.as_sub())2202 .checked_add(1)2203 .ok_or(Error::<T>::NumOverflow)?;2204 collection.consume_sstore()?;2205 <Balance<T>>::insert(collection_id, new_owner.as_sub(), balance_new_owner);22062207 2208 let old_owner = item.owner.clone();2209 item.owner = new_owner.clone();2210 collection.consume_sstore()?;2211 <NftItemList<T>>::insert(collection_id, item_id, item);22122213 2214 Self::move_token_index(collection, item_id, &old_owner, &new_owner)?;22152216 collection.log(ERC721Events::Transfer {2217 from: *sender.as_eth(),2218 to: *new_owner.as_eth(),2219 token_id: item_id.into(),2220 })?;2221 Self::deposit_event(RawEvent::Transfer(2222 collection.id,2223 item_id,2224 sender,2225 new_owner,2226 1,2227 ));22282229 Ok(())2230 }22312232 fn set_re_fungible_variable_data(2233 collection: &CollectionHandle<T>,2234 item_id: TokenId,2235 data: Vec<u8>,2236 ) -> DispatchResult {2237 let collection_id = collection.id;2238 let mut item = <ReFungibleItemList<T>>::get(collection_id, item_id)2239 .ok_or(Error::<T>::TokenNotFound)?;22402241 item.variable_data = data;22422243 <ReFungibleItemList<T>>::insert(collection_id, item_id, item);22442245 Ok(())2246 }22472248 fn set_nft_variable_data(2249 collection: &CollectionHandle<T>,2250 item_id: TokenId,2251 data: Vec<u8>,2252 ) -> DispatchResult {2253 let collection_id = collection.id;2254 let mut item =2255 <NftItemList<T>>::get(collection_id, item_id).ok_or(Error::<T>::TokenNotFound)?;22562257 item.variable_data = data;22582259 <NftItemList<T>>::insert(collection_id, item_id, item);22602261 Ok(())2262 }22632264 #[allow(dead_code)]2265 fn init_collection(item: &Collection<T>) {2266 2267 assert!(2268 item.decimal_points <= MAX_DECIMAL_POINTS,2269 "decimal_points parameter must be lower than MAX_DECIMAL_POINTS"2270 );2271 assert!(2272 item.name.len() <= 64,2273 "Collection name can not be longer than 63 char"2274 );2275 assert!(2276 item.name.len() <= 256,2277 "Collection description can not be longer than 255 char"2278 );2279 assert!(2280 item.token_prefix.len() <= 16,2281 "Token prefix can not be longer than 15 char"2282 );22832284 2285 let next_id = CreatedCollectionCount::get().checked_add(1).unwrap();22862287 CreatedCollectionCount::put(next_id);2288 }22892290 #[allow(dead_code)]2291 fn init_nft_token(collection_id: CollectionId, item: &NftItemType<T::CrossAccountId>) {2292 let current_index = <ItemListIndex>::get(collection_id).checked_add(1).unwrap();22932294 Self::add_token_index(2295 &CollectionHandle::get(collection_id).unwrap(),2296 current_index,2297 &item.owner,2298 )2299 .unwrap();23002301 <ItemListIndex>::insert(collection_id, current_index);23022303 2304 let new_balance = <Balance<T>>::get(collection_id, item.owner.as_sub())2305 .checked_add(1)2306 .unwrap();2307 <Balance<T>>::insert(collection_id, item.owner.as_sub(), new_balance);2308 }23092310 #[allow(dead_code)]2311 fn init_fungible_token(2312 collection_id: CollectionId,2313 owner: &T::CrossAccountId,2314 item: &FungibleItemType,2315 ) {2316 let current_index = <ItemListIndex>::get(collection_id).checked_add(1).unwrap();23172318 Self::add_token_index(2319 &CollectionHandle::get(collection_id).unwrap(),2320 current_index,2321 owner,2322 )2323 .unwrap();23242325 <ItemListIndex>::insert(collection_id, current_index);23262327 2328 let new_balance = <Balance<T>>::get(collection_id, owner.as_sub())2329 .checked_add(item.value)2330 .unwrap();2331 <Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);2332 }23332334 #[allow(dead_code)]2335 fn init_refungible_token(2336 collection_id: CollectionId,2337 item: &ReFungibleItemType<T::CrossAccountId>,2338 ) {2339 let current_index = <ItemListIndex>::get(collection_id).checked_add(1).unwrap();23402341 let value = item.owner.first().unwrap().fraction;2342 let owner = item.owner.first().unwrap().owner.clone();23432344 Self::add_token_index(2345 &CollectionHandle::get(collection_id).unwrap(),2346 current_index,2347 &owner,2348 )2349 .unwrap();23502351 <ItemListIndex>::insert(collection_id, current_index);23522353 2354 let new_balance = <Balance<T>>::get(collection_id, &owner.as_sub())2355 .checked_add(value)2356 .unwrap();2357 <Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);2358 }23592360 fn add_token_index(2361 collection: &CollectionHandle<T>,2362 item_index: TokenId,2363 owner: &T::CrossAccountId,2364 ) -> DispatchResult {2365 2366 collection.consume_sload()?;2367 if <AccountItemCount<T>>::contains_key(owner.as_sub()) {2368 2369 collection.consume_sload()?;2370 let count = <AccountItemCount<T>>::get(owner.as_sub());2371 ensure!(2372 count < ACCOUNT_TOKEN_OWNERSHIP_LIMIT,2373 Error::<T>::AddressOwnershipLimitExceeded2374 );23752376 collection.consume_sstore()?;2377 <AccountItemCount<T>>::insert(2378 owner.as_sub(),2379 count.checked_add(1).ok_or(Error::<T>::NumOverflow)?,2380 );2381 } else {2382 collection.consume_sstore()?;2383 <AccountItemCount<T>>::insert(owner.as_sub(), 1);2384 }23852386 collection.consume_sload()?;2387 let list_exists = <AddressTokens<T>>::contains_key(collection.id, owner.as_sub());2388 if list_exists {2389 collection.consume_sload()?;2390 let mut list = <AddressTokens<T>>::get(collection.id, owner.as_sub());2391 let item_contains = list.contains(&item_index.clone());23922393 if !item_contains {2394 list.push(item_index);2395 }23962397 collection.consume_sstore()?;2398 <AddressTokens<T>>::insert(collection.id, owner.as_sub(), list);2399 } else {2400 let itm = vec![item_index];2401 collection.consume_sstore()?;2402 <AddressTokens<T>>::insert(collection.id, owner.as_sub(), itm);2403 }24042405 Ok(())2406 }24072408 fn remove_token_index(2409 collection: &CollectionHandle<T>,2410 item_index: TokenId,2411 owner: &T::CrossAccountId,2412 ) -> DispatchResult {2413 2414 collection.consume_sload()?;2415 collection.consume_sstore()?;2416 <AccountItemCount<T>>::insert(2417 owner.as_sub(),2418 <AccountItemCount<T>>::get(owner.as_sub())2419 .checked_sub(1)2420 .ok_or(Error::<T>::NumOverflow)?,2421 );24222423 collection.consume_sload()?;2424 let list_exists = <AddressTokens<T>>::contains_key(collection.id, owner.as_sub());2425 if list_exists {2426 collection.consume_sload()?;2427 let mut list = <AddressTokens<T>>::get(collection.id, owner.as_sub());2428 let item_contains = list.contains(&item_index.clone());24292430 if item_contains {2431 list.retain(|&item| item != item_index);2432 collection.consume_sstore()?;2433 <AddressTokens<T>>::insert(collection.id, owner.as_sub(), list);2434 }2435 }24362437 Ok(())2438 }24392440 fn move_token_index(2441 collection: &CollectionHandle<T>,2442 item_index: TokenId,2443 old_owner: &T::CrossAccountId,2444 new_owner: &T::CrossAccountId,2445 ) -> DispatchResult {2446 Self::remove_token_index(collection, item_index, old_owner)?;2447 Self::add_token_index(collection, item_index, new_owner)?;24482449 Ok(())2450 }2451}24522453sp_api::decl_runtime_apis! {2454 pub trait NftApi {2455 2456 fn eth_contract_code(account: H160) -> Option<Vec<u8>>;2457 }2458}