difftreelog
feat add Transfer event
in: master
1 file changed
pallets/nft/src/lib.rsdiffbeforeafterboth1//2// This file is subject to the terms and conditions defined in3// file 'LICENSE', which is part of this source code package.4//56#![recursion_limit = "1024"]78#![cfg_attr(not(feature = "std"), no_std)]910#[cfg(feature = "std")]11pub use std::*;1213#[cfg(feature = "std")]14pub use serde::*;1516use codec::{Decode, Encode};17pub use frame_support::{18 construct_runtime, decl_event, decl_module, decl_storage, decl_error,19 dispatch::DispatchResult,20 ensure, fail, parameter_types,21 traits::{22 Currency, ExistenceRequirement, Get, Imbalance, KeyOwnerProofSystem, OnUnbalanced,23 Randomness, IsSubType,24 },25 weights::{26 constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},27 DispatchInfo, GetDispatchInfo, IdentityFee, Pays, PostDispatchInfo, Weight,28 WeightToFeePolynomial, DispatchClass,29 },30 StorageValue,31};3233use frame_system::{self as system, ensure_signed, ensure_root};34use sp_runtime::sp_std::prelude::Vec;35use sp_runtime::{36 traits::{37 DispatchInfoOf, Dispatchable, PostDispatchInfoOf, Saturating, SaturatedConversion, SignedExtension, Zero,38 },39 transaction_validity::{40 TransactionPriority, InvalidTransaction, TransactionValidity, TransactionValidityError, ValidTransaction,41 },42 FixedPointOperand, FixedU128,43};44use sp_runtime::traits::StaticLookup;45use pallet_contracts::chain_extension::UncheckedFrom;46use transaction_payment::OnChargeTransaction;4748#[cfg(test)]49mod mock;5051#[cfg(test)]52mod tests;5354mod default_weights;5556pub const MAX_DECIMAL_POINTS: DecimalPoints = 30;57pub const MAX_REFUNGIBLE_PIECES: u128 = 1_000_000_000_000_000_000_000;58pub const MAX_SPONSOR_TIMEOUT: u32 = 10_368_000;59pub const MAX_TOKEN_OWNERSHIP: u32 = 10_000_000;6061// Structs62// #region6364pub type CollectionId = u32;65pub type TokenId = u32;66pub type DecimalPoints = u8;6768#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq)]69#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]70pub enum CollectionMode {71 Invalid,72 NFT,73 // decimal points74 Fungible(DecimalPoints),75 ReFungible,76}7778impl Default for CollectionMode {79 fn default() -> Self {80 Self::Invalid81 }82}8384impl Into<u8> for CollectionMode {85 fn into(self) -> u8 {86 match self {87 CollectionMode::Invalid => 0,88 CollectionMode::NFT => 1,89 CollectionMode::Fungible(_) => 2,90 CollectionMode::ReFungible => 3,91 }92 }93}9495#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq)]96#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]97pub enum AccessMode {98 Normal,99 WhiteList,100}101impl Default for AccessMode {102 fn default() -> Self {103 Self::Normal104 }105}106107#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq)]108#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]109pub enum SchemaVersion {110 ImageURL,111 Unique,112}113impl Default for SchemaVersion {114 fn default() -> Self {115 Self::ImageURL116 }117}118119#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]120#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]121pub struct Ownership<AccountId> {122 pub owner: AccountId,123 pub fraction: u128,124}125126#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]127#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]128pub struct CollectionType<AccountId> {129 pub owner: AccountId,130 pub mode: CollectionMode,131 pub access: AccessMode,132 pub decimal_points: DecimalPoints,133 pub name: Vec<u16>, // 64 include null escape char134 pub description: Vec<u16>, // 256 include null escape char135 pub token_prefix: Vec<u8>, // 16 include null escape char136 pub mint_mode: bool,137 pub offchain_schema: Vec<u8>,138 pub schema_version: SchemaVersion,139 pub sponsor: AccountId, // Who pays fees. If set to default address, the fees are applied to the transaction sender140 pub sponsor_confirmed: bool, // False if sponsor address has not yet confirmed sponsorship. True otherwise.141 pub limits: CollectionLimits, // Collection private restrictions 142 pub variable_on_chain_schema: Vec<u8>, //143 pub const_on_chain_schema: Vec<u8>, //144}145146#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]147#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]148pub struct NftItemType<AccountId> {149 pub owner: AccountId,150 pub const_data: Vec<u8>,151 pub variable_data: Vec<u8>,152}153154#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]155#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]156pub struct FungibleItemType {157 pub value: u128,158}159160#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]161#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]162pub struct ReFungibleItemType<AccountId> {163 pub owner: Vec<Ownership<AccountId>>,164 pub const_data: Vec<u8>,165 pub variable_data: Vec<u8>,166}167168// #[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]169// #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]170// pub struct VestingItem<AccountId, Moment> {171// pub sender: AccountId,172// pub recipient: AccountId,173// pub collection_id: CollectionId,174// pub item_id: TokenId,175// pub amount: u64,176// pub vesting_date: Moment,177// }178179#[derive(Encode, Decode, Debug, Clone, PartialEq)]180#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]181pub struct CollectionLimits {182 pub account_token_ownership_limit: u32,183 pub sponsored_data_size: u32,184 pub token_limit: u32,185186 // Timeouts for item types in passed blocks187 pub sponsor_transfer_timeout: u32,188 pub owner_can_transfer: bool,189 pub owner_can_destroy: bool,190}191192impl Default for CollectionLimits {193 fn default() -> CollectionLimits {194 CollectionLimits { 195 account_token_ownership_limit: 10_000_000, 196 token_limit: u32::max_value(),197 sponsored_data_size: u32::max_value(), 198 sponsor_transfer_timeout: 14400,199 owner_can_transfer: true,200 owner_can_destroy: true201 }202 }203}204205#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]206#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]207pub struct ChainLimits {208 pub collection_numbers_limit: u32,209 pub account_token_ownership_limit: u32,210 pub collections_admins_limit: u64,211 pub custom_data_limit: u32,212213 // Timeouts for item types in passed blocks214 pub nft_sponsor_transfer_timeout: u32,215 pub fungible_sponsor_transfer_timeout: u32,216 pub refungible_sponsor_transfer_timeout: u32,217218 // Schema limits219 pub offchain_schema_limit: u32,220 pub variable_on_chain_schema_limit: u32,221 pub const_on_chain_schema_limit: u32,222}223224pub trait WeightInfo {225 fn create_collection() -> Weight;226 fn destroy_collection() -> Weight;227 fn add_to_white_list() -> Weight;228 fn remove_from_white_list() -> Weight;229 fn set_public_access_mode() -> Weight;230 fn set_mint_permission() -> Weight;231 fn change_collection_owner() -> Weight;232 fn add_collection_admin() -> Weight;233 fn remove_collection_admin() -> Weight;234 fn set_collection_sponsor() -> Weight;235 fn confirm_sponsorship() -> Weight;236 fn remove_collection_sponsor() -> Weight;237 fn create_item(s: usize) -> Weight;238 fn burn_item() -> Weight;239 fn transfer() -> Weight;240 fn approve() -> Weight;241 fn transfer_from() -> Weight;242 fn set_offchain_schema() -> Weight;243 fn set_const_on_chain_schema() -> Weight;244 fn set_variable_on_chain_schema() -> Weight;245 fn set_variable_meta_data() -> Weight;246 fn enable_contract_sponsoring() -> Weight;247 fn set_schema_version() -> Weight;248 fn set_chain_limits() -> Weight;249 fn set_contract_sponsoring_rate_limit() -> Weight;250 fn toggle_contract_white_list() -> Weight;251 fn add_to_contract_white_list() -> Weight;252 fn remove_from_contract_white_list() -> Weight;253 fn set_collection_limits() -> Weight;254}255256#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]257#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]258pub struct CreateNftData {259 pub const_data: Vec<u8>,260 pub variable_data: Vec<u8>,261}262263#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]264#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]265pub struct CreateFungibleData {266 pub value: u128,267}268269#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]270#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]271pub struct CreateReFungibleData {272 pub const_data: Vec<u8>,273 pub variable_data: Vec<u8>,274 pub pieces: u128,275}276277#[derive(Encode, Decode, Debug, Clone, PartialEq)]278#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]279pub enum CreateItemData {280 NFT(CreateNftData),281 Fungible(CreateFungibleData),282 ReFungible(CreateReFungibleData),283}284285impl CreateItemData {286 pub fn len(&self) -> usize {287 let len = match self {288 CreateItemData::NFT(data) => data.variable_data.len() + data.const_data.len(),289 CreateItemData::ReFungible(data) => data.variable_data.len() + data.const_data.len(),290 _ => 0291 };292 293 return len;294 }295}296297impl From<CreateNftData> for CreateItemData {298 fn from(item: CreateNftData) -> Self {299 CreateItemData::NFT(item)300 }301}302303impl From<CreateReFungibleData> for CreateItemData {304 fn from(item: CreateReFungibleData) -> Self {305 CreateItemData::ReFungible(item)306 }307}308309impl From<CreateFungibleData> for CreateItemData {310 fn from(item: CreateFungibleData) -> Self {311 CreateItemData::Fungible(item)312 }313}314315316decl_error! {317 /// Error for non-fungible-token module.318 pub enum Error for Module<T: Config> {319 /// Total collections bound exceeded.320 TotalCollectionsLimitExceeded,321 /// Decimal_points parameter must be lower than MAX_DECIMAL_POINTS constant, currently it is 30.322 CollectionDecimalPointLimitExceeded, 323 /// Collection name can not be longer than 63 char.324 CollectionNameLimitExceeded, 325 /// Collection description can not be longer than 255 char.326 CollectionDescriptionLimitExceeded, 327 /// Token prefix can not be longer than 15 char.328 CollectionTokenPrefixLimitExceeded,329 /// This collection does not exist.330 CollectionNotFound,331 /// Item not exists.332 TokenNotFound,333 /// Admin not found334 AdminNotFound,335 /// Arithmetic calculation overflow.336 NumOverflow, 337 /// Account already has admin role.338 AlreadyAdmin, 339 /// You do not own this collection.340 NoPermission,341 /// This address is not set as sponsor, use setCollectionSponsor first.342 ConfirmUnsetSponsorFail,343 /// Collection is not in mint mode.344 PublicMintingNotAllowed,345 /// Sender parameter and item owner must be equal.346 MustBeTokenOwner,347 /// Item balance not enough.348 TokenValueTooLow,349 /// Size of item is too large.350 NftSizeLimitExceeded,351 /// No approve found352 ApproveNotFound,353 /// Requested value more than approved.354 TokenValueNotEnough,355 /// Only approved addresses can call this method.356 ApproveRequired,357 /// Address is not in white list.358 AddresNotInWhiteList,359 /// Number of collection admins bound exceeded.360 CollectionAdminsLimitExceeded,361 /// Owned tokens by a single address bound exceeded.362 AddressOwnershipLimitExceeded,363 /// Length of items properties must be greater than 0.364 EmptyArgument,365 /// const_data exceeded data limit.366 TokenConstDataLimitExceeded,367 /// variable_data exceeded data limit.368 TokenVariableDataLimitExceeded,369 /// Not NFT item data used to mint in NFT collection.370 NotNftDataUsedToMintNftCollectionToken,371 /// Not Fungible item data used to mint in Fungible collection.372 NotFungibleDataUsedToMintFungibleCollectionToken,373 /// Not Re Fungible item data used to mint in Re Fungible collection.374 NotReFungibleDataUsedToMintReFungibleCollectionToken,375 /// Unexpected collection type.376 UnexpectedCollectionType,377 /// Can't store metadata in fungible tokens.378 CantStoreMetadataInFungibleTokens,379 /// Collection token limit exceeded380 CollectionTokenLimitExceeded,381 /// Account token limit exceeded per collection382 AccountTokenLimitExceeded,383 /// Collection limit bounds per collection exceeded384 CollectionLimitBoundsExceeded,385 /// Schema data size limit bound exceeded386 SchemaDataLimitExceeded,387 /// Maximum refungibility exceeded388 WrongRefungiblePieces389 }390}391392pub trait Config: system::Config + Sized + transaction_payment::Config + pallet_contracts::Config {393 type Event: From<Event<Self>> + Into<<Self as system::Config>::Event>;394395 /// Weight information for extrinsics in this pallet.396 type WeightInfo: WeightInfo;397}398399#[cfg(feature = "runtime-benchmarks")]400mod benchmarking;401402// #endregion403404decl_storage! {405 trait Store for Module<T: Config> as Nft {406407 // Private members408 NextCollectionID: CollectionId;409 CreatedCollectionCount: u32;410 ChainVersion: u64;411 ItemListIndex: map hasher(identity) CollectionId => TokenId;412413 // Chain limits struct414 pub ChainLimit get(fn chain_limit) config(): ChainLimits;415416 // Bound counters417 CollectionCount: u32;418 pub AccountItemCount get(fn account_item_count): map hasher(twox_64_concat) T::AccountId => u32;419420 // Basic collections421 pub Collection get(fn collection) config(): map hasher(identity) CollectionId => CollectionType<T::AccountId>;422 pub AdminList get(fn admin_list_collection): map hasher(identity) CollectionId => Vec<T::AccountId>;423 pub WhiteList get(fn white_list): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => bool;424425 /// Balance owner per collection map426 pub Balance get(fn balance_count): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => u128;427428 /// second parameter: item id + owner account id + spender account id429 pub Allowances get(fn approved): double_map hasher(identity) CollectionId, hasher(twox_64_concat) (TokenId, T::AccountId, T::AccountId) => u128;430431 /// Item collections432 pub NftItemList get(fn nft_item_id) config(): double_map hasher(identity) CollectionId, hasher(identity) TokenId => NftItemType<T::AccountId>;433 pub FungibleItemList get(fn fungible_item_id) config(): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => FungibleItemType;434 pub ReFungibleItemList get(fn refungible_item_id) config(): double_map hasher(identity) CollectionId, hasher(identity) TokenId => ReFungibleItemType<T::AccountId>;435436 /// Index list437 pub AddressTokens get(fn address_tokens): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => Vec<TokenId>;438439 /// Tokens transfer baskets440 pub CreateItemBasket get(fn create_item_basket): map hasher(twox_64_concat) (CollectionId, T::AccountId) => T::BlockNumber;441 pub NftTransferBasket get(fn nft_transfer_basket): double_map hasher(identity) CollectionId, hasher(identity) TokenId => T::BlockNumber;442 pub FungibleTransferBasket get(fn fungible_transfer_basket): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => T::BlockNumber;443 pub ReFungibleTransferBasket get(fn refungible_transfer_basket): double_map hasher(identity) CollectionId, hasher(identity) TokenId => T::BlockNumber;444445 // Contract Sponsorship and Ownership446 pub ContractOwner get(fn contract_owner): map hasher(twox_64_concat) T::AccountId => T::AccountId;447 pub ContractSelfSponsoring get(fn contract_self_sponsoring): map hasher(twox_64_concat) T::AccountId => bool;448 pub ContractSponsorBasket get(fn contract_sponsor_basket): map hasher(twox_64_concat) (T::AccountId, T::AccountId) => T::BlockNumber;449 pub ContractSponsoringRateLimit get(fn contract_sponsoring_rate_limit): map hasher(twox_64_concat) T::AccountId => T::BlockNumber;450 pub ContractWhiteListEnabled get(fn contract_white_list_enabled): map hasher(twox_64_concat) T::AccountId => bool; 451 pub ContractWhiteList get(fn contract_white_list): double_map hasher(twox_64_concat) T::AccountId, hasher(twox_64_concat) T::AccountId => bool; 452 }453 add_extra_genesis {454 build(|config: &GenesisConfig<T>| {455 // Modification of storage456 for (_num, _c) in &config.collection {457 <Module<T>>::init_collection(_c);458 }459460 for (_num, _c, _i) in &config.nft_item_id {461 <Module<T>>::init_nft_token(*_c, _i);462 }463464 for (collection_id, account_id, fungible_item) in &config.fungible_item_id {465 <Module<T>>::init_fungible_token(*collection_id, account_id, fungible_item);466 }467468 for (_num, _c, _i) in &config.refungible_item_id {469 <Module<T>>::init_refungible_token(*_c, _i);470 }471 })472 }473}474475decl_event!(476 pub enum Event<T>477 where478 AccountId = <T as system::Config>::AccountId,479 {480 /// New collection was created481 /// 482 /// # Arguments483 /// 484 /// * collection_id: Globally unique identifier of newly created collection.485 /// 486 /// * mode: [CollectionMode] converted into u8.487 /// 488 /// * account_id: Collection owner.489 Created(CollectionId, u8, AccountId),490491 /// New item was created.492 /// 493 /// # Arguments494 /// 495 /// * collection_id: Id of the collection where item was created.496 /// 497 /// * item_id: Id of an item. Unique within the collection.498 ItemCreated(CollectionId, TokenId),499500 /// Collection item was burned.501 /// 502 /// # Arguments503 /// 504 /// collection_id.505 /// 506 /// item_id: Identifier of burned NFT.507 ItemDestroyed(CollectionId, TokenId),508 }509);510511decl_module! {512 pub struct Module<T: Config> for enum Call 513 where 514 origin: T::Origin515 {516 fn deposit_event() = default;517 type Error = Error<T>;518519 fn on_initialize(now: T::BlockNumber) -> Weight {520521 if ChainVersion::get() < 2522 {523 let value = NextCollectionID::get();524 CreatedCollectionCount::put(value);525 ChainVersion::put(2);526 }527528 0529 }530531 /// This method creates a Collection of NFTs. Each Token may have multiple properties encoded as an array of bytes of certain length. The initial owner and admin of the collection are set to the address that signed the transaction. Both addresses can be changed later.532 /// 533 /// # Permissions534 /// 535 /// * Anyone.536 /// 537 /// # Arguments538 /// 539 /// * collection_name: UTF-16 string with collection name (limit 64 characters), will be stored as zero-terminated.540 /// 541 /// * collection_description: UTF-16 string with collection description (limit 256 characters), will be stored as zero-terminated.542 /// 543 /// * token_prefix: UTF-8 string with token prefix.544 /// 545 /// * mode: [CollectionMode] collection type and type dependent data.546 // returns collection ID547 #[weight = <T as Config>::WeightInfo::create_collection()]548 pub fn create_collection(origin,549 collection_name: Vec<u16>,550 collection_description: Vec<u16>,551 token_prefix: Vec<u8>,552 mode: CollectionMode) -> DispatchResult {553554 // Anyone can create a collection555 let who = ensure_signed(origin)?;556557 let decimal_points = match mode {558 CollectionMode::Fungible(points) => points,559 _ => 0560 };561562 // bound Total number of collections563 ensure!(CollectionCount::get() < ChainLimit::get().collection_numbers_limit, Error::<T>::TotalCollectionsLimitExceeded);564565 // check params566 ensure!(decimal_points <= MAX_DECIMAL_POINTS, Error::<T>::CollectionDecimalPointLimitExceeded);567 ensure!(collection_name.len() <= 64, Error::<T>::CollectionNameLimitExceeded);568 ensure!(collection_description.len() <= 256, Error::<T>::CollectionDescriptionLimitExceeded);569 ensure!(token_prefix.len() <= 16, Error::<T>::CollectionTokenPrefixLimitExceeded);570571 // Generate next collection ID572 let next_id = CreatedCollectionCount::get()573 .checked_add(1)574 .ok_or(Error::<T>::NumOverflow)?;575576 // bound counter577 let total = CollectionCount::get()578 .checked_add(1)579 .ok_or(Error::<T>::NumOverflow)?;580581 CreatedCollectionCount::put(next_id);582 CollectionCount::put(total);583584 // Create new collection585 let new_collection = CollectionType {586 owner: who.clone(),587 name: collection_name,588 mode: mode.clone(),589 mint_mode: false,590 access: AccessMode::Normal,591 description: collection_description,592 decimal_points: decimal_points,593 token_prefix: token_prefix,594 offchain_schema: Vec::new(),595 schema_version: SchemaVersion::ImageURL,596 sponsor: T::AccountId::default(),597 sponsor_confirmed: false,598 variable_on_chain_schema: Vec::new(),599 const_on_chain_schema: Vec::new(),600 limits: CollectionLimits::default()601 };602603 // Add new collection to map604 <Collection<T>>::insert(next_id, new_collection);605606 // call event607 Self::deposit_event(RawEvent::Created(next_id, mode.into(), who.clone()));608609 Ok(())610 }611612 /// **DANGEROUS**: Destroys collection and all NFTs within this collection. Users irrecoverably lose their assets and may lose real money.613 /// 614 /// # Permissions615 /// 616 /// * Collection Owner.617 /// 618 /// # Arguments619 /// 620 /// * collection_id: collection to destroy.621 #[weight = <T as Config>::WeightInfo::destroy_collection()]622 pub fn destroy_collection(origin, collection_id: CollectionId) -> DispatchResult {623624 let sender = ensure_signed(origin)?;625 Self::check_owner_permissions(collection_id, sender)?;626627 <AddressTokens<T>>::remove_prefix(collection_id);628 <Allowances<T>>::remove_prefix(collection_id);629 <Balance<T>>::remove_prefix(collection_id);630 <ItemListIndex>::remove(collection_id);631 <AdminList<T>>::remove(collection_id);632 <Collection<T>>::remove(collection_id);633 <WhiteList<T>>::remove_prefix(collection_id);634635 <NftItemList<T>>::remove_prefix(collection_id);636 <FungibleItemList<T>>::remove_prefix(collection_id);637 <ReFungibleItemList<T>>::remove_prefix(collection_id);638639 <NftTransferBasket<T>>::remove_prefix(collection_id);640 <FungibleTransferBasket<T>>::remove_prefix(collection_id);641 <ReFungibleTransferBasket<T>>::remove_prefix(collection_id);642643 if CollectionCount::get() > 0644 {645 // bound couter646 let total = CollectionCount::get()647 .checked_sub(1)648 .ok_or(Error::<T>::NumOverflow)?;649650 CollectionCount::put(total);651 }652653 Ok(())654 }655656 /// Add an address to white list.657 /// 658 /// # Permissions659 /// 660 /// * Collection Owner661 /// * Collection Admin662 /// 663 /// # Arguments664 /// 665 /// * collection_id.666 /// 667 /// * address.668 #[weight = <T as Config>::WeightInfo::add_to_white_list()]669 pub fn add_to_white_list(origin, collection_id: CollectionId, address: T::AccountId) -> DispatchResult{670671 let sender = ensure_signed(origin)?;672 Self::check_owner_or_admin_permissions(collection_id, sender)?;673674 <WhiteList<T>>::insert(collection_id, address, true);675 676 Ok(())677 }678679 /// Remove an address from white list.680 /// 681 /// # Permissions682 /// 683 /// * Collection Owner684 /// * Collection Admin685 /// 686 /// # Arguments687 /// 688 /// * collection_id.689 /// 690 /// * address.691 #[weight = <T as Config>::WeightInfo::remove_from_white_list()]692 pub fn remove_from_white_list(origin, collection_id: CollectionId, address: T::AccountId) -> DispatchResult{693694 let sender = ensure_signed(origin)?;695 Self::check_owner_or_admin_permissions(collection_id, sender)?;696697 <WhiteList<T>>::remove(collection_id, address);698699 Ok(())700 }701702 /// Toggle between normal and white list access for the methods with access for `Anyone`.703 /// 704 /// # Permissions705 /// 706 /// * Collection Owner.707 /// 708 /// # Arguments709 /// 710 /// * collection_id.711 /// 712 /// * mode: [AccessMode]713 #[weight = <T as Config>::WeightInfo::set_public_access_mode()]714 pub fn set_public_access_mode(origin, collection_id: CollectionId, mode: AccessMode) -> DispatchResult715 {716 let sender = ensure_signed(origin)?;717718 Self::check_owner_permissions(collection_id, sender)?;719 let mut target_collection = <Collection<T>>::get(collection_id);720 target_collection.access = mode;721 <Collection<T>>::insert(collection_id, target_collection);722723 Ok(())724 }725726 /// Allows Anyone to create tokens if:727 /// * White List is enabled, and728 /// * Address is added to white list, and729 /// * This method was called with True parameter730 /// 731 /// # Permissions732 /// * Collection Owner733 ///734 /// # Arguments735 /// 736 /// * collection_id.737 /// 738 /// * mint_permission: Boolean parameter. If True, allows minting to Anyone with conditions above.739 #[weight = <T as Config>::WeightInfo::set_mint_permission()]740 pub fn set_mint_permission(origin, collection_id: CollectionId, mint_permission: bool) -> DispatchResult741 {742 let sender = ensure_signed(origin)?;743744 Self::check_owner_permissions(collection_id, sender)?;745 let mut target_collection = <Collection<T>>::get(collection_id);746 target_collection.mint_mode = mint_permission;747 <Collection<T>>::insert(collection_id, target_collection);748749 Ok(())750 }751752 /// Change the owner of the collection.753 /// 754 /// # Permissions755 /// 756 /// * Collection Owner.757 /// 758 /// # Arguments759 /// 760 /// * collection_id.761 /// 762 /// * new_owner.763 #[weight = <T as Config>::WeightInfo::change_collection_owner()]764 pub fn change_collection_owner(origin, collection_id: CollectionId, new_owner: T::AccountId) -> DispatchResult {765766 let sender = ensure_signed(origin)?;767 Self::check_owner_permissions(collection_id, sender)?;768 let mut target_collection = <Collection<T>>::get(collection_id);769 target_collection.owner = new_owner;770 <Collection<T>>::insert(collection_id, target_collection);771772 Ok(())773 }774775 /// Adds an admin of the Collection.776 /// NFT Collection can be controlled by multiple admin addresses (some which can also be servers, for example). Admins can issue and burn NFTs, as well as add and remove other admins, but cannot change NFT or Collection ownership. 777 /// 778 /// # Permissions779 /// 780 /// * Collection Owner.781 /// * Collection Admin.782 /// 783 /// # Arguments784 /// 785 /// * collection_id: ID of the Collection to add admin for.786 /// 787 /// * new_admin_id: Address of new admin to add.788 #[weight = <T as Config>::WeightInfo::add_collection_admin()]789 pub fn add_collection_admin(origin, collection_id: CollectionId, new_admin_id: T::AccountId) -> DispatchResult {790791 let sender = ensure_signed(origin)?;792 Self::check_owner_or_admin_permissions(collection_id, sender)?;793 let mut admin_arr: Vec<T::AccountId> = Vec::new();794795 if <AdminList<T>>::contains_key(collection_id)796 {797 admin_arr = <AdminList<T>>::get(collection_id);798 ensure!(!admin_arr.contains(&new_admin_id), Error::<T>::AlreadyAdmin);799 }800801 // Number of collection admins802 ensure!((admin_arr.len() as u64) < ChainLimit::get().collections_admins_limit, Error::<T>::CollectionAdminsLimitExceeded);803804 admin_arr.push(new_admin_id);805 <AdminList<T>>::insert(collection_id, admin_arr);806807 Ok(())808 }809810 /// Remove admin address of the Collection. An admin address can remove itself. List of admins may become empty, in which case only Collection Owner will be able to add an Admin.811 ///812 /// # Permissions813 /// 814 /// * Collection Owner.815 /// * Collection Admin.816 /// 817 /// # Arguments818 /// 819 /// * collection_id: ID of the Collection to remove admin for.820 /// 821 /// * account_id: Address of admin to remove.822 #[weight = <T as Config>::WeightInfo::remove_collection_admin()]823 pub fn remove_collection_admin(origin, collection_id: CollectionId, account_id: T::AccountId) -> DispatchResult {824825 let sender = ensure_signed(origin)?;826 Self::check_owner_or_admin_permissions(collection_id, sender)?;827 ensure!(<AdminList<T>>::contains_key(collection_id), Error::<T>::AdminNotFound);828829 let mut admin_arr = <AdminList<T>>::get(collection_id);830 admin_arr.retain(|i| *i != account_id);831 <AdminList<T>>::insert(collection_id, admin_arr);832833 Ok(())834 }835836 /// # Permissions837 /// 838 /// * Collection Owner839 /// 840 /// # Arguments841 /// 842 /// * collection_id.843 /// 844 /// * new_sponsor.845 #[weight = <T as Config>::WeightInfo::set_collection_sponsor()]846 pub fn set_collection_sponsor(origin, collection_id: CollectionId, new_sponsor: T::AccountId) -> DispatchResult {847848 let sender = ensure_signed(origin)?;849 ensure!(<Collection<T>>::contains_key(collection_id), Error::<T>::CollectionNotFound);850851 let mut target_collection = <Collection<T>>::get(collection_id);852 ensure!(sender == target_collection.owner, Error::<T>::NoPermission);853854 target_collection.sponsor = new_sponsor;855 target_collection.sponsor_confirmed = false;856 <Collection<T>>::insert(collection_id, target_collection);857858 Ok(())859 }860861 /// # Permissions862 /// 863 /// * Sponsor.864 /// 865 /// # Arguments866 /// 867 /// * collection_id.868 #[weight = <T as Config>::WeightInfo::confirm_sponsorship()]869 pub fn confirm_sponsorship(origin, collection_id: CollectionId) -> DispatchResult {870871 let sender = ensure_signed(origin)?;872 ensure!(<Collection<T>>::contains_key(collection_id), Error::<T>::CollectionNotFound);873874 let mut target_collection = <Collection<T>>::get(collection_id);875 ensure!(sender == target_collection.sponsor, Error::<T>::ConfirmUnsetSponsorFail);876877 target_collection.sponsor_confirmed = true;878 <Collection<T>>::insert(collection_id, target_collection);879880 Ok(())881 }882883 /// Switch back to pay-per-own-transaction model.884 ///885 /// # Permissions886 ///887 /// * Collection owner.888 /// 889 /// # Arguments890 /// 891 /// * collection_id.892 #[weight = <T as Config>::WeightInfo::remove_collection_sponsor()]893 pub fn remove_collection_sponsor(origin, collection_id: CollectionId) -> DispatchResult {894895 let sender = ensure_signed(origin)?;896 ensure!(<Collection<T>>::contains_key(collection_id), Error::<T>::CollectionNotFound);897898 let mut target_collection = <Collection<T>>::get(collection_id);899 ensure!(sender == target_collection.owner, Error::<T>::NoPermission);900901 target_collection.sponsor = T::AccountId::default();902 target_collection.sponsor_confirmed = false;903 <Collection<T>>::insert(collection_id, target_collection);904905 Ok(())906 }907908 /// This method creates a concrete instance of NFT Collection created with CreateCollection method.909 /// 910 /// # Permissions911 /// 912 /// * Collection Owner.913 /// * Collection Admin.914 /// * Anyone if915 /// * White List is enabled, and916 /// * Address is added to white list, and917 /// * MintPermission is enabled (see SetMintPermission method)918 /// 919 /// # Arguments920 /// 921 /// * collection_id: ID of the collection.922 /// 923 /// * owner: Address, initial owner of the NFT.924 ///925 /// * data: Token data to store on chain.926 // #[weight =927 // (130_000_000 as Weight)928 // .saturating_add((2135 as Weight).saturating_mul((properties.len() as u64) as Weight))929 // .saturating_add(RocksDbWeight::get().reads(10 as Weight))930 // .saturating_add(RocksDbWeight::get().writes(8 as Weight))]931932 #[weight = <T as Config>::WeightInfo::create_item(data.len())]933 pub fn create_item(origin, collection_id: CollectionId, owner: T::AccountId, data: CreateItemData) -> DispatchResult {934935 let sender = ensure_signed(origin)?;936937 Self::collection_exists(collection_id)?;938939 let target_collection = <Collection<T>>::get(collection_id);940941 Self::can_create_items_in_collection(collection_id, &target_collection, &sender, &owner)?;942 Self::validate_create_item_args(&target_collection, &data)?;943 Self::create_item_no_validation(collection_id, owner, data)?;944945 Ok(())946 }947948 /// This method creates multiple instances of NFT Collection created with CreateCollection method.949 /// 950 /// # Permissions951 /// 952 /// * Collection Owner.953 /// * Collection Admin.954 /// * Anyone if955 /// * White List is enabled, and956 /// * Address is added to white list, and957 /// * MintPermission is enabled (see SetMintPermission method)958 /// 959 /// # Arguments960 /// 961 /// * collection_id: ID of the collection.962 /// 963 /// * itemsData: Array items properties. Each property is an array of bytes itself, see [create_item].964 /// 965 /// * owner: Address, initial owner of the NFT.966 #[weight = <T as Config>::WeightInfo::create_item(items_data.into_iter()967 .map(|data| { data.len() })968 .sum())]969 pub fn create_multiple_items(origin, collection_id: CollectionId, owner: T::AccountId, items_data: Vec<CreateItemData>) -> DispatchResult {970971 ensure!(items_data.len() > 0, Error::<T>::EmptyArgument);972 let sender = ensure_signed(origin)?;973974 Self::collection_exists(collection_id)?;975 let target_collection = <Collection<T>>::get(collection_id);976977 Self::can_create_items_in_collection(collection_id, &target_collection, &sender, &owner)?;978979 for data in &items_data {980 Self::validate_create_item_args(&target_collection, data)?;981 }982 for data in &items_data {983 Self::create_item_no_validation(collection_id, owner.clone(), data.clone())?;984 }985986 Ok(())987 }988989 /// Destroys a concrete instance of NFT.990 /// 991 /// # Permissions992 /// 993 /// * Collection Owner.994 /// * Collection Admin.995 /// * Current NFT Owner.996 /// 997 /// # Arguments998 /// 999 /// * collection_id: ID of the collection.1000 /// 1001 /// * item_id: ID of NFT to burn.1002 #[weight = <T as Config>::WeightInfo::burn_item()]1003 pub fn burn_item(origin, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {10041005 let sender = ensure_signed(origin)?;1006 Self::collection_exists(collection_id)?;10071008 // Transfer permissions check1009 let target_collection = <Collection<T>>::get(collection_id);1010 ensure!(Self::is_item_owner(sender.clone(), collection_id, item_id) ||1011 Self::is_owner_or_admin_permissions(collection_id, sender.clone()),1012 Error::<T>::NoPermission);10131014 if target_collection.access == AccessMode::WhiteList {1015 Self::check_white_list(collection_id, &sender)?;1016 }10171018 match target_collection.mode1019 {1020 CollectionMode::NFT => Self::burn_nft_item(collection_id, item_id)?,1021 CollectionMode::Fungible(_) => Self::burn_fungible_item(&sender, collection_id, value)?,1022 CollectionMode::ReFungible => Self::burn_refungible_item(collection_id, item_id, &sender)?,1023 _ => ()1024 };10251026 // call event1027 Self::deposit_event(RawEvent::ItemDestroyed(collection_id, item_id));10281029 Ok(())1030 }10311032 /// Change ownership of the token.1033 /// 1034 /// # Permissions1035 /// 1036 /// * Collection Owner1037 /// * Collection Admin1038 /// * Current NFT owner1039 ///1040 /// # Arguments1041 /// 1042 /// * recipient: Address of token recipient.1043 /// 1044 /// * collection_id.1045 /// 1046 /// * item_id: ID of the item1047 /// * Non-Fungible Mode: Required.1048 /// * Fungible Mode: Ignored.1049 /// * Re-Fungible Mode: Required.1050 /// 1051 /// * value: Amount to transfer.1052 /// * Non-Fungible Mode: Ignored1053 /// * Fungible Mode: Must specify transferred amount1054 /// * Re-Fungible Mode: Must specify transferred portion (between 0 and 1)1055 #[weight = <T as Config>::WeightInfo::transfer()]1056 pub fn transfer(origin, recipient: T::AccountId, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {1057 let sender = ensure_signed(origin)?;1058 Self::transfer_internal(sender, recipient, collection_id, item_id, value)1059 }10601061 /// Set, change, or remove approved address to transfer the ownership of the NFT.1062 /// 1063 /// # Permissions1064 /// 1065 /// * Collection Owner1066 /// * Collection Admin1067 /// * Current NFT owner1068 /// 1069 /// # Arguments1070 /// 1071 /// * approved: Address that is approved to transfer this NFT or zero (if needed to remove approval).1072 /// 1073 /// * collection_id.1074 /// 1075 /// * item_id: ID of the item.1076 #[weight = <T as Config>::WeightInfo::approve()]1077 pub fn approve(origin, spender: T::AccountId, collection_id: CollectionId, item_id: TokenId, amount: u128) -> DispatchResult {10781079 let sender = ensure_signed(origin)?;10801081 Self::collection_exists(collection_id)?;1082 Self::token_exists(collection_id, item_id, &sender)?;10831084 // Transfer permissions check1085 let target_collection = <Collection<T>>::get(collection_id);1086 ensure!(Self::is_item_owner(sender.clone(), collection_id, item_id) ||1087 Self::is_owner_or_admin_permissions(collection_id, sender.clone()),1088 Error::<T>::NoPermission);10891090 if target_collection.access == AccessMode::WhiteList {1091 Self::check_white_list(collection_id, &sender)?;1092 Self::check_white_list(collection_id, &spender)?;1093 }10941095 let allowance_exists = <Allowances<T>>::contains_key(collection_id, (item_id, &sender, &spender));1096 let mut allowance: u128 = amount;1097 if allowance_exists {1098 allowance += <Allowances<T>>::get(collection_id, (item_id, &sender, &spender));1099 }1100 <Allowances<T>>::insert(collection_id, (item_id, sender.clone(), spender.clone()), allowance);11011102 Ok(())1103 }1104 1105 /// Change ownership of a NFT on behalf of the owner. See Approve method for additional information. After this method executes, the approval is removed so that the approved address will not be able to transfer this NFT again from this owner.1106 /// 1107 /// # Permissions1108 /// * Collection Owner1109 /// * Collection Admin1110 /// * Current NFT owner1111 /// * Address approved by current NFT owner1112 /// 1113 /// # Arguments1114 /// 1115 /// * from: Address that owns token.1116 /// 1117 /// * recipient: Address of token recipient.1118 /// 1119 /// * collection_id.1120 /// 1121 /// * item_id: ID of the item.1122 /// 1123 /// * value: Amount to transfer.1124 #[weight = <T as Config>::WeightInfo::transfer_from()]1125 pub fn transfer_from(origin, from: T::AccountId, recipient: T::AccountId, collection_id: CollectionId, item_id: TokenId, value: u128 ) -> DispatchResult {11261127 let sender = ensure_signed(origin)?;1128 let mut appoved_transfer = false;11291130 // Check approval1131 let mut approval: u128 = 0;1132 if <Allowances<T>>::contains_key(collection_id, (item_id, &from, &sender)) {1133 approval = <Allowances<T>>::get(collection_id, (item_id, &from, &sender));1134 ensure!(approval >= value, Error::<T>::TokenValueNotEnough);1135 appoved_transfer = true;1136 }11371138 let target_collection = <Collection<T>>::get(collection_id);11391140 // Limits check1141 Self::is_correct_transfer(collection_id, &target_collection, &recipient)?;11421143 // Transfer permissions check 1144 ensure!(appoved_transfer || Self::is_owner_or_admin_permissions(collection_id, sender.clone()),1145 Error::<T>::NoPermission);11461147 if target_collection.access == AccessMode::WhiteList {1148 Self::check_white_list(collection_id, &sender)?;1149 Self::check_white_list(collection_id, &recipient)?;1150 }11511152 // Reduce approval by transferred amount or remove if remaining approval drops to 01153 if approval.checked_sub(value).unwrap_or(0) > 0 {1154 <Allowances<T>>::insert(collection_id, (item_id, &from, &sender), approval - value);1155 }1156 else {1157 <Allowances<T>>::remove(collection_id, (item_id, &from, &sender));1158 }11591160 match target_collection.mode1161 {1162 CollectionMode::NFT => Self::transfer_nft(collection_id, item_id, from, recipient)?,1163 CollectionMode::Fungible(_) => Self::transfer_fungible(collection_id, value, &from, &recipient)?,1164 CollectionMode::ReFungible => Self::transfer_refungible(collection_id, item_id, value, from.clone(), recipient)?,1165 _ => ()1166 };11671168 Ok(())1169 }11701171 // #[weight = 0]1172 // pub fn safe_transfer_from(origin, collection_id: CollectionId, item_id: TokenId, new_owner: T::AccountId) -> DispatchResult {11731174 // // let no_perm_mes = "You do not have permissions to modify this collection";1175 // // ensure!(<ApprovedList<T>>::contains_key((collection_id, item_id)), no_perm_mes);1176 // // let list_itm = <ApprovedList<T>>::get((collection_id, item_id));1177 // // ensure!(list_itm.contains(&new_owner.clone()), no_perm_mes);11781179 // // // on_nft_received call11801181 // // Self::transfer(origin, collection_id, item_id, new_owner)?;11821183 // Ok(())1184 // }11851186 /// Set off-chain data schema.1187 /// 1188 /// # Permissions1189 /// 1190 /// * Collection Owner1191 /// * Collection Admin1192 /// 1193 /// # Arguments1194 /// 1195 /// * collection_id.1196 /// 1197 /// * schema: String representing the offchain data schema.1198 #[weight = <T as Config>::WeightInfo::set_variable_meta_data()]1199 pub fn set_variable_meta_data (1200 origin,1201 collection_id: CollectionId,1202 item_id: TokenId,1203 data: Vec<u8>1204 ) -> DispatchResult {1205 let sender = ensure_signed(origin)?;1206 1207 Self::collection_exists(collection_id)?;1208 Self::token_exists(collection_id, item_id, &sender)?;12091210 ensure!(ChainLimit::get().custom_data_limit >= data.len() as u32, Error::<T>::TokenVariableDataLimitExceeded);12111212 // Modify permissions check1213 let target_collection = <Collection<T>>::get(collection_id);1214 ensure!(Self::is_item_owner(sender.clone(), collection_id, item_id) ||1215 Self::is_owner_or_admin_permissions(collection_id, sender.clone()),1216 Error::<T>::NoPermission);12171218 match target_collection.mode1219 {1220 CollectionMode::NFT => Self::set_nft_variable_data(collection_id, item_id, data)?,1221 CollectionMode::ReFungible => Self::set_re_fungible_variable_data(collection_id, item_id, data)?,1222 CollectionMode::Fungible(_) => fail!(Error::<T>::CantStoreMetadataInFungibleTokens),1223 _ => fail!(Error::<T>::UnexpectedCollectionType)1224 };12251226 Ok(())1227 }1228 1229 /// Set schema standard1230 /// ImageURL1231 /// Unique1232 /// 1233 /// # Permissions1234 /// 1235 /// * Collection Owner1236 /// * Collection Admin1237 /// 1238 /// # Arguments1239 /// 1240 /// * collection_id.1241 /// 1242 /// * schema: SchemaVersion: enum1243 #[weight = <T as Config>::WeightInfo::set_schema_version()]1244 pub fn set_schema_version(1245 origin,1246 collection_id: CollectionId,1247 version: SchemaVersion1248 ) -> DispatchResult {1249 let sender = ensure_signed(origin)?;1250 Self::check_owner_or_admin_permissions(collection_id, sender.clone())?;1251 let mut target_collection = <Collection<T>>::get(collection_id);1252 target_collection.schema_version = version;1253 <Collection<T>>::insert(collection_id, target_collection);12541255 Ok(())1256 }12571258 /// Set off-chain data schema.1259 /// 1260 /// # Permissions1261 /// 1262 /// * Collection Owner1263 /// * Collection Admin1264 /// 1265 /// # Arguments1266 /// 1267 /// * collection_id.1268 /// 1269 /// * schema: String representing the offchain data schema.1270 #[weight = <T as Config>::WeightInfo::set_offchain_schema()]1271 pub fn set_offchain_schema(1272 origin,1273 collection_id: CollectionId,1274 schema: Vec<u8>1275 ) -> DispatchResult {1276 let sender = ensure_signed(origin)?;1277 Self::check_owner_or_admin_permissions(collection_id, sender.clone())?;12781279 // check schema limit1280 ensure!(schema.len() as u32 <= ChainLimit::get().offchain_schema_limit, "");12811282 let mut target_collection = <Collection<T>>::get(collection_id);1283 target_collection.offchain_schema = schema;1284 <Collection<T>>::insert(collection_id, target_collection);12851286 Ok(())1287 }12881289 /// Set const on-chain data schema.1290 /// 1291 /// # Permissions1292 /// 1293 /// * Collection Owner1294 /// * Collection Admin1295 /// 1296 /// # Arguments1297 /// 1298 /// * collection_id.1299 /// 1300 /// * schema: String representing the const on-chain data schema.1301 #[weight = <T as Config>::WeightInfo::set_const_on_chain_schema()]1302 pub fn set_const_on_chain_schema (1303 origin,1304 collection_id: CollectionId,1305 schema: Vec<u8>1306 ) -> DispatchResult {1307 let sender = ensure_signed(origin)?;1308 Self::check_owner_or_admin_permissions(collection_id, sender.clone())?;13091310 // check schema limit1311 ensure!(schema.len() as u32 <= ChainLimit::get().const_on_chain_schema_limit, "");13121313 let mut target_collection = <Collection<T>>::get(collection_id);1314 target_collection.const_on_chain_schema = schema;1315 <Collection<T>>::insert(collection_id, target_collection);13161317 Ok(())1318 }13191320 /// Set variable on-chain data schema.1321 /// 1322 /// # Permissions1323 /// 1324 /// * Collection Owner1325 /// * Collection Admin1326 /// 1327 /// # Arguments1328 /// 1329 /// * collection_id.1330 /// 1331 /// * schema: String representing the variable on-chain data schema.1332 #[weight = <T as Config>::WeightInfo::set_const_on_chain_schema()]1333 pub fn set_variable_on_chain_schema (1334 origin,1335 collection_id: CollectionId,1336 schema: Vec<u8>1337 ) -> DispatchResult {1338 let sender = ensure_signed(origin)?;1339 Self::check_owner_or_admin_permissions(collection_id, sender.clone())?;13401341 // check schema limit1342 ensure!(schema.len() as u32 <= ChainLimit::get().variable_on_chain_schema_limit, "");13431344 let mut target_collection = <Collection<T>>::get(collection_id);1345 target_collection.variable_on_chain_schema = schema;1346 <Collection<T>>::insert(collection_id, target_collection);13471348 Ok(())1349 }13501351 // Sudo permissions function1352 #[weight = <T as Config>::WeightInfo::set_chain_limits()]1353 pub fn set_chain_limits(1354 origin,1355 limits: ChainLimits1356 ) -> DispatchResult {13571358 #[cfg(not(feature = "runtime-benchmarks"))]1359 ensure_root(origin)?;13601361 <ChainLimit>::put(limits);1362 Ok(())1363 }13641365 /// Enable smart contract self-sponsoring.1366 /// 1367 /// # Permissions1368 /// 1369 /// * Contract Owner1370 /// 1371 /// # Arguments1372 /// 1373 /// * contract address1374 /// * enable flag1375 /// 1376 #[weight = <T as Config>::WeightInfo::enable_contract_sponsoring()]1377 pub fn enable_contract_sponsoring(1378 origin,1379 contract_address: T::AccountId,1380 enable: bool1381 ) -> DispatchResult {13821383 let sender = ensure_signed(origin)?;13841385 #[cfg(feature = "runtime-benchmarks")]1386 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());13871388 Self::ensure_contract_owned(sender, &contract_address)?;13891390 <ContractSelfSponsoring<T>>::insert(contract_address, enable);1391 Ok(())1392 }13931394 /// Set the rate limit for contract sponsoring to specified number of blocks.1395 /// 1396 /// If not set (has the default value of 0 blocks), the sponsoring will be disabled. 1397 /// If set to the number B (for blocks), the transactions will be sponsored with a rate 1398 /// limit of B, i.e. fees for every transaction sent to this smart contract will be paid 1399 /// from contract endowment if there are at least B blocks between such transactions. 1400 /// Nonetheless, if transactions are sent more frequently, the fees are paid by the sender.1401 /// 1402 /// # Permissions1403 /// 1404 /// * Contract Owner1405 /// 1406 /// # Arguments1407 /// 1408 /// -`contract_address`: Address of the contract to sponsor1409 /// -`rate_limit`: Number of blocks to wait until the next sponsored transaction is allowed1410 /// 1411 #[weight = <T as Config>::WeightInfo::set_contract_sponsoring_rate_limit()]1412 pub fn set_contract_sponsoring_rate_limit(1413 origin,1414 contract_address: T::AccountId,1415 rate_limit: T::BlockNumber1416 ) -> DispatchResult {1417 let sender = ensure_signed(origin)?;14181419 #[cfg(feature = "runtime-benchmarks")]1420 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());14211422 Self::ensure_contract_owned(sender, &contract_address)?;1423 <ContractSponsoringRateLimit<T>>::insert(contract_address, rate_limit);1424 Ok(())1425 }14261427 /// Enable the white list for a contract. Only addresses added to the white list with addToContractWhiteList will be able to call this smart contract.1428 /// 1429 /// # Permissions1430 /// 1431 /// * Address that deployed smart contract.1432 /// 1433 /// # Arguments1434 /// 1435 /// -`contract_address`: Address of the contract.1436 /// 1437 /// - `enable`: . 1438 #[weight = <T as Config>::WeightInfo::toggle_contract_white_list()]1439 pub fn toggle_contract_white_list(1440 origin,1441 contract_address: T::AccountId,1442 enable: bool1443 ) -> DispatchResult {1444 let sender = ensure_signed(origin)?;14451446 #[cfg(feature = "runtime-benchmarks")]1447 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());14481449 Self::ensure_contract_owned(sender, &contract_address)?;1450 <ContractWhiteListEnabled<T>>::insert(contract_address, enable);1451 Ok(())1452 }1453 1454 /// Add an address to smart contract white list.1455 /// 1456 /// # Permissions1457 /// 1458 /// * Address that deployed smart contract.1459 /// 1460 /// # Arguments1461 /// 1462 /// -`contract_address`: Address of the contract.1463 ///1464 /// -`account_address`: Address to add.1465 #[weight = <T as Config>::WeightInfo::add_to_contract_white_list()]1466 pub fn add_to_contract_white_list(1467 origin,1468 contract_address: T::AccountId,1469 account_address: T::AccountId1470 ) -> DispatchResult {1471 let sender = ensure_signed(origin)?;14721473 #[cfg(feature = "runtime-benchmarks")]1474 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());1475 1476 Self::ensure_contract_owned(sender, &contract_address)?; 1477 <ContractWhiteList<T>>::insert(contract_address, account_address, true);1478 Ok(())1479 }14801481 /// Remove an address from smart contract white list.1482 /// 1483 /// # Permissions1484 /// 1485 /// * Address that deployed smart contract.1486 /// 1487 /// # Arguments1488 /// 1489 /// -`contract_address`: Address of the contract.1490 ///1491 /// -`account_address`: Address to remove.1492 #[weight = <T as Config>::WeightInfo::remove_from_contract_white_list()]1493 pub fn remove_from_contract_white_list(1494 origin,1495 contract_address: T::AccountId,1496 account_address: T::AccountId1497 ) -> DispatchResult {1498 let sender = ensure_signed(origin)?;14991500 #[cfg(feature = "runtime-benchmarks")]1501 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());15021503 Self::ensure_contract_owned(sender, &contract_address)?;1504 <ContractWhiteList<T>>::remove(contract_address, account_address);1505 Ok(())1506 }15071508 #[weight = <T as Config>::WeightInfo::set_collection_limits()]1509 pub fn set_collection_limits(1510 origin,1511 collection_id: u32,1512 limits: CollectionLimits,1513 ) -> DispatchResult {1514 let sender = ensure_signed(origin)?;1515 Self::check_owner_permissions(collection_id, sender.clone())?;1516 let mut target_collection = <Collection<T>>::get(collection_id);1517 let chain_limits = ChainLimit::get();1518 let climits = target_collection.limits;15191520 // collection bounds1521 ensure!(limits.sponsor_transfer_timeout <= MAX_SPONSOR_TIMEOUT &&1522 limits.account_token_ownership_limit <= MAX_TOKEN_OWNERSHIP, 1523 Error::<T>::CollectionLimitBoundsExceeded);15241525 // token_limit check prev1526 ensure!(climits.token_limit > limits.token_limit && 1527 limits.token_limit <= chain_limits.account_token_ownership_limit, 1528 Error::<T>::AccountTokenLimitExceeded);15291530 target_collection.limits = limits;1531 <Collection<T>>::insert(collection_id, target_collection);15321533 Ok(())1534 } 1535 }1536}15371538impl<T: Config> Module<T> {15391540 pub fn transfer_internal(sender: T::AccountId, recipient: T::AccountId, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {15411542 let target_collection = <Collection<T>>::get(collection_id);15431544 // Limits check1545 Self::is_correct_transfer(collection_id, &target_collection, &recipient)?;15461547 // Transfer permissions check1548 ensure!(Self::is_item_owner(sender.clone(), collection_id, item_id) ||1549 Self::is_owner_or_admin_permissions(collection_id, sender.clone()),1550 Error::<T>::NoPermission);15511552 if target_collection.access == AccessMode::WhiteList {1553 Self::check_white_list(collection_id, &sender)?;1554 Self::check_white_list(collection_id, &recipient)?;1555 }15561557 match target_collection.mode1558 {1559 CollectionMode::NFT => Self::transfer_nft(collection_id, item_id, sender.clone(), recipient)?,1560 CollectionMode::Fungible(_) => Self::transfer_fungible(collection_id, value, &sender, &recipient)?,1561 CollectionMode::ReFungible => Self::transfer_refungible(collection_id, item_id, value, sender.clone(), recipient)?,1562 _ => ()1563 };15641565 Ok(())1566 }156715681569 fn is_correct_transfer(collection_id: CollectionId, collection: &CollectionType<T::AccountId>, recipient: &T::AccountId) -> DispatchResult {15701571 // check token limit and account token limit1572 let account_items: u32 = <AddressTokens<T>>::get(collection_id, recipient).len() as u32;1573 ensure!(collection.limits.account_token_ownership_limit > account_items, Error::<T>::AccountTokenLimitExceeded);1574 1575 Ok(())1576 }15771578 fn can_create_items_in_collection(collection_id: CollectionId, collection: &CollectionType<T::AccountId>, sender: &T::AccountId, owner: &T::AccountId) -> DispatchResult {15791580 // check token limit and account token limit1581 let total_items: u32 = ItemListIndex::get(collection_id);1582 let account_items: u32 = <AddressTokens<T>>::get(collection_id, owner).len() as u32;1583 ensure!(collection.limits.token_limit > total_items, Error::<T>::CollectionTokenLimitExceeded);1584 ensure!(collection.limits.account_token_ownership_limit > account_items, Error::<T>::AccountTokenLimitExceeded);15851586 if !Self::is_owner_or_admin_permissions(collection_id, sender.clone()) {1587 ensure!(collection.mint_mode == true, Error::<T>::PublicMintingNotAllowed);1588 Self::check_white_list(collection_id, owner)?;1589 Self::check_white_list(collection_id, sender)?;1590 }15911592 Ok(())1593 }15941595 fn validate_create_item_args(target_collection: &CollectionType<T::AccountId>, data: &CreateItemData) -> DispatchResult {1596 match target_collection.mode1597 {1598 CollectionMode::NFT => {1599 if let CreateItemData::NFT(data) = data {1600 // check sizes1601 ensure!(ChainLimit::get().custom_data_limit >= data.const_data.len() as u32, Error::<T>::TokenConstDataLimitExceeded);1602 ensure!(ChainLimit::get().custom_data_limit >= data.variable_data.len() as u32, Error::<T>::TokenVariableDataLimitExceeded);1603 } else {1604 fail!(Error::<T>::NotNftDataUsedToMintNftCollectionToken);1605 }1606 },1607 CollectionMode::Fungible(_) => {1608 if let CreateItemData::Fungible(_) = data {1609 } else {1610 fail!(Error::<T>::NotFungibleDataUsedToMintFungibleCollectionToken);1611 }1612 },1613 CollectionMode::ReFungible => {1614 if let CreateItemData::ReFungible(data) = data {16151616 // check sizes1617 ensure!(ChainLimit::get().custom_data_limit >= data.const_data.len() as u32, Error::<T>::TokenConstDataLimitExceeded);1618 ensure!(ChainLimit::get().custom_data_limit >= data.variable_data.len() as u32, Error::<T>::TokenVariableDataLimitExceeded);16191620 // Check refungibility limits1621 ensure!(data.pieces <= MAX_REFUNGIBLE_PIECES, Error::<T>::WrongRefungiblePieces);1622 ensure!(data.pieces > 0, Error::<T>::WrongRefungiblePieces);1623 } else {1624 fail!(Error::<T>::NotReFungibleDataUsedToMintReFungibleCollectionToken);1625 }1626 },1627 _ => { fail!(Error::<T>::UnexpectedCollectionType); }1628 };16291630 Ok(())1631 }16321633 fn create_item_no_validation(collection_id: CollectionId, owner: T::AccountId, data: CreateItemData) -> DispatchResult {1634 match data1635 {1636 CreateItemData::NFT(data) => {1637 let item = NftItemType {1638 owner,1639 const_data: data.const_data,1640 variable_data: data.variable_data1641 };16421643 Self::add_nft_item(collection_id, item)?;1644 },1645 CreateItemData::Fungible(data) => {1646 Self::add_fungible_item(collection_id, &owner, data.value)?;1647 },1648 CreateItemData::ReFungible(data) => {1649 let mut owner_list = Vec::new();1650 owner_list.push(Ownership {owner: owner.clone(), fraction: data.pieces});16511652 let item = ReFungibleItemType {1653 owner: owner_list,1654 const_data: data.const_data,1655 variable_data: data.variable_data1656 };16571658 Self::add_refungible_item(collection_id, item)?;1659 }1660 };16611662 // call event1663 Self::deposit_event(RawEvent::ItemCreated(collection_id, <ItemListIndex>::get(collection_id)));16641665 Ok(())1666 }16671668 fn add_fungible_item(collection_id: CollectionId, owner: &T::AccountId, value: u128) -> DispatchResult {16691670 // Does new owner already have an account?1671 let mut balance: u128 = 0;1672 if <FungibleItemList<T>>::contains_key(collection_id, owner) {1673 balance = <FungibleItemList<T>>::get(collection_id, owner).value;1674 } 16751676 // Mint 1677 let item = FungibleItemType {1678 value: balance + value1679 };1680 <FungibleItemList<T>>::insert(collection_id, (*owner).clone(), item);16811682 // Update balance1683 let new_balance = <Balance<T>>::get(collection_id, owner)1684 .checked_add(value)1685 .ok_or(Error::<T>::NumOverflow)?;1686 <Balance<T>>::insert(collection_id, (*owner).clone(), new_balance);16871688 Ok(())1689 }16901691 fn add_refungible_item(collection_id: CollectionId, item: ReFungibleItemType<T::AccountId>) -> DispatchResult {1692 let current_index = <ItemListIndex>::get(collection_id)1693 .checked_add(1)1694 .ok_or(Error::<T>::NumOverflow)?;1695 let itemcopy = item.clone();16961697 let value = item.owner.first().unwrap().fraction;1698 let owner = item.owner.first().unwrap().owner.clone();16991700 Self::add_token_index(collection_id, current_index, &owner)?;17011702 <ItemListIndex>::insert(collection_id, current_index);1703 <ReFungibleItemList<T>>::insert(collection_id, current_index, itemcopy);17041705 // Update balance1706 let new_balance = <Balance<T>>::get(collection_id, &owner)1707 .checked_add(value)1708 .ok_or(Error::<T>::NumOverflow)?;1709 <Balance<T>>::insert(collection_id, owner.clone(), new_balance);17101711 Ok(())1712 }17131714 fn add_nft_item(collection_id: CollectionId, item: NftItemType<T::AccountId>) -> DispatchResult {1715 let current_index = <ItemListIndex>::get(collection_id)1716 .checked_add(1)1717 .ok_or(Error::<T>::NumOverflow)?;17181719 let item_owner = item.owner.clone();1720 Self::add_token_index(collection_id, current_index, &item.owner)?;17211722 <ItemListIndex>::insert(collection_id, current_index);1723 <NftItemList<T>>::insert(collection_id, current_index, item);17241725 // Update balance1726 let new_balance = <Balance<T>>::get(collection_id, item_owner.clone())1727 .checked_add(1)1728 .ok_or(Error::<T>::NumOverflow)?;1729 <Balance<T>>::insert(collection_id, item_owner.clone(), new_balance);17301731 Ok(())1732 }17331734 fn burn_refungible_item(1735 collection_id: CollectionId,1736 item_id: TokenId,1737 owner: &T::AccountId,1738 ) -> DispatchResult {1739 ensure!(1740 <ReFungibleItemList<T>>::contains_key(collection_id, item_id),1741 Error::<T>::TokenNotFound1742 );1743 let mut token = <ReFungibleItemList<T>>::get(collection_id, item_id);1744 let rft_balance = token1745 .owner1746 .iter()1747 .filter(|&i| i.owner == *owner)1748 .next()1749 .unwrap();1750 Self::remove_token_index(collection_id, item_id, owner)?;17511752 // update balance1753 let new_balance = <Balance<T>>::get(collection_id, rft_balance.owner.clone())1754 .checked_sub(rft_balance.fraction)1755 .ok_or(Error::<T>::NumOverflow)?;1756 <Balance<T>>::insert(collection_id, rft_balance.owner.clone(), new_balance);17571758 // Re-create owners list with sender removed1759 let index = token1760 .owner1761 .iter()1762 .position(|i| i.owner == *owner)1763 .unwrap();1764 token.owner.remove(index);1765 let owner_count = token.owner.len();17661767 // Burn the token completely if this was the last (only) owner1768 if owner_count == 0 {1769 <ReFungibleItemList<T>>::remove(collection_id, item_id);1770 }1771 else {1772 <ReFungibleItemList<T>>::insert(collection_id, item_id, token);1773 }17741775 Ok(())1776 }17771778 fn burn_nft_item(collection_id: CollectionId, item_id: TokenId) -> DispatchResult {1779 ensure!(1780 <NftItemList<T>>::contains_key(collection_id, item_id),1781 Error::<T>::TokenNotFound1782 );1783 let item = <NftItemList<T>>::get(collection_id, item_id);1784 Self::remove_token_index(collection_id, item_id, &item.owner)?;17851786 // update balance1787 let new_balance = <Balance<T>>::get(collection_id, &item.owner)1788 .checked_sub(1)1789 .ok_or(Error::<T>::NumOverflow)?;1790 <Balance<T>>::insert(collection_id, item.owner.clone(), new_balance);1791 <NftItemList<T>>::remove(collection_id, item_id);17921793 Ok(())1794 }17951796 fn burn_fungible_item(owner: &T::AccountId, collection_id: CollectionId, value: u128) -> DispatchResult {1797 ensure!(1798 <FungibleItemList<T>>::contains_key(collection_id, owner),1799 Error::<T>::TokenNotFound1800 );1801 let mut balance = <FungibleItemList<T>>::get(collection_id, owner);1802 ensure!(balance.value >= value, Error::<T>::TokenValueNotEnough);18031804 // update balance1805 let new_balance = <Balance<T>>::get(collection_id, owner)1806 .checked_sub(value)1807 .ok_or(Error::<T>::NumOverflow)?;1808 <Balance<T>>::insert(collection_id, (*owner).clone(), new_balance);18091810 if balance.value - value > 0 {1811 balance.value -= value;1812 <FungibleItemList<T>>::insert(collection_id, (*owner).clone(), balance);1813 }1814 else {1815 <FungibleItemList<T>>::remove(collection_id, owner);1816 }18171818 Ok(())1819 }18201821 fn collection_exists(collection_id: CollectionId) -> DispatchResult {1822 ensure!(1823 <Collection<T>>::contains_key(collection_id),1824 Error::<T>::CollectionNotFound1825 );1826 Ok(())1827 }18281829 fn check_owner_permissions(collection_id: CollectionId, subject: T::AccountId) -> DispatchResult {1830 Self::collection_exists(collection_id)?;18311832 let target_collection = <Collection<T>>::get(collection_id);1833 ensure!(1834 subject == target_collection.owner,1835 Error::<T>::NoPermission1836 );18371838 Ok(())1839 }18401841 fn is_owner_or_admin_permissions(collection_id: CollectionId, subject: T::AccountId) -> bool {1842 let target_collection = <Collection<T>>::get(collection_id);1843 let mut result: bool = subject == target_collection.owner;1844 let exists = <AdminList<T>>::contains_key(collection_id);18451846 if !result & exists {1847 if <AdminList<T>>::get(collection_id).contains(&subject) {1848 result = true1849 }1850 }18511852 result1853 }18541855 fn check_owner_or_admin_permissions(1856 collection_id: CollectionId,1857 subject: T::AccountId,1858 ) -> DispatchResult {1859 Self::collection_exists(collection_id)?;1860 let result = Self::is_owner_or_admin_permissions(collection_id, subject.clone());18611862 ensure!(1863 result,1864 Error::<T>::NoPermission1865 );1866 Ok(())1867 }18681869 fn is_item_owner(subject: T::AccountId, collection_id: CollectionId, item_id: TokenId) -> bool {1870 let target_collection = <Collection<T>>::get(collection_id);18711872 match target_collection.mode {1873 CollectionMode::NFT => {1874 <NftItemList<T>>::get(collection_id, item_id).owner == subject1875 }1876 CollectionMode::Fungible(_) => {1877 <FungibleItemList<T>>::contains_key(collection_id, &subject)1878 }1879 CollectionMode::ReFungible => {1880 <ReFungibleItemList<T>>::get(collection_id, item_id)1881 .owner1882 .iter()1883 .any(|i| i.owner == subject)1884 }1885 CollectionMode::Invalid => false,1886 }1887 }18881889 fn check_white_list(collection_id: CollectionId, address: &T::AccountId) -> DispatchResult {1890 let mes = Error::<T>::AddresNotInWhiteList;1891 ensure!(<WhiteList<T>>::contains_key(collection_id, address), mes);18921893 Ok(())1894 }18951896 /// Check if token exists. In case of Fungible, check if there is an entry for 1897 /// the owner in fungible balances double map1898 fn token_exists(1899 collection_id: CollectionId,1900 item_id: TokenId,1901 owner: &T::AccountId1902 ) -> DispatchResult {1903 let target_collection = <Collection<T>>::get(collection_id);1904 let exists = match target_collection.mode1905 {1906 CollectionMode::NFT => <NftItemList<T>>::contains_key(collection_id, item_id),1907 CollectionMode::Fungible(_) => <FungibleItemList<T>>::contains_key(collection_id, owner),1908 CollectionMode::ReFungible => <ReFungibleItemList<T>>::contains_key(collection_id, item_id),1909 _ => false1910 };19111912 ensure!(exists == true, Error::<T>::TokenNotFound);1913 Ok(())1914 }19151916 fn transfer_fungible(1917 collection_id: CollectionId,1918 value: u128,1919 owner: &T::AccountId,1920 recipient: &T::AccountId,1921 ) -> DispatchResult {1922 Self::token_exists(collection_id, 0, owner)?;19231924 let mut balance = <FungibleItemList<T>>::get(collection_id, owner);1925 ensure!(balance.value >= value, Error::<T>::TokenValueTooLow);19261927 // Send balance to recipient (updates balanceOf of recipient)1928 Self::add_fungible_item(collection_id, recipient, value)?;19291930 // update balanceOf of sender1931 <Balance<T>>::insert(collection_id, (*owner).clone(), balance.value - value);19321933 // Reduce or remove sender1934 if balance.value == value {1935 <FungibleItemList<T>>::remove(collection_id, owner);1936 }1937 else {1938 balance.value -= value;1939 <FungibleItemList<T>>::insert(collection_id, (*owner).clone(), balance);1940 }19411942 Ok(())1943 }19441945 fn transfer_refungible(1946 collection_id: CollectionId,1947 item_id: TokenId,1948 value: u128,1949 owner: T::AccountId,1950 new_owner: T::AccountId,1951 ) -> DispatchResult {1952 Self::token_exists(collection_id, item_id, &owner)?;19531954 let full_item = <ReFungibleItemList<T>>::get(collection_id, item_id);1955 let item = full_item1956 .owner1957 .iter()1958 .filter(|i| i.owner == owner)1959 .next()1960 .ok_or(Error::<T>::NumOverflow)?;1961 let amount = item.fraction;19621963 ensure!(amount >= value, Error::<T>::TokenValueTooLow);19641965 // update balance1966 let balance_old_owner = <Balance<T>>::get(collection_id, item.owner.clone())1967 .checked_sub(value)1968 .ok_or(Error::<T>::NumOverflow)?;1969 <Balance<T>>::insert(collection_id, item.owner.clone(), balance_old_owner);19701971 let balancenew_owner = <Balance<T>>::get(collection_id, new_owner.clone())1972 .checked_add(value)1973 .ok_or(Error::<T>::NumOverflow)?;1974 <Balance<T>>::insert(collection_id, new_owner.clone(), balancenew_owner);19751976 let old_owner = item.owner.clone();1977 let new_owner_has_account = full_item.owner.iter().any(|i| i.owner == new_owner);19781979 // transfer1980 if amount == value && !new_owner_has_account {1981 // change owner1982 // new owner do not have account1983 let mut new_full_item = full_item.clone();1984 new_full_item1985 .owner1986 .iter_mut()1987 .find(|i| i.owner == owner)1988 .unwrap()1989 .owner = new_owner.clone();1990 <ReFungibleItemList<T>>::insert(collection_id, item_id, new_full_item);19911992 // update index collection1993 Self::move_token_index(collection_id, item_id, &old_owner, &new_owner)?;1994 } else {1995 let mut new_full_item = full_item.clone();1996 new_full_item1997 .owner1998 .iter_mut()1999 .find(|i| i.owner == owner)2000 .unwrap()2001 .fraction -= value;20022003 // separate amount2004 if new_owner_has_account {2005 // new owner has account2006 new_full_item2007 .owner2008 .iter_mut()2009 .find(|i| i.owner == new_owner)2010 .unwrap()2011 .fraction += value;2012 } else {2013 // new owner do not have account2014 new_full_item.owner.push(Ownership {2015 owner: new_owner.clone(),2016 fraction: value,2017 });2018 Self::add_token_index(collection_id, item_id, &new_owner)?;2019 }20202021 <ReFungibleItemList<T>>::insert(collection_id, item_id, new_full_item);2022 }20232024 Ok(())2025 }20262027 fn transfer_nft(2028 collection_id: CollectionId,2029 item_id: TokenId,2030 sender: T::AccountId,2031 new_owner: T::AccountId,2032 ) -> DispatchResult {2033 Self::token_exists(collection_id, item_id, &sender)?;20342035 let mut item = <NftItemList<T>>::get(collection_id, item_id);20362037 ensure!(2038 sender == item.owner,2039 Error::<T>::MustBeTokenOwner2040 );20412042 // update balance2043 let balance_old_owner = <Balance<T>>::get(collection_id, item.owner.clone())2044 .checked_sub(1)2045 .ok_or(Error::<T>::NumOverflow)?;2046 <Balance<T>>::insert(collection_id, item.owner.clone(), balance_old_owner);20472048 let balancenew_owner = <Balance<T>>::get(collection_id, new_owner.clone())2049 .checked_add(1)2050 .ok_or(Error::<T>::NumOverflow)?;2051 <Balance<T>>::insert(collection_id, new_owner.clone(), balancenew_owner);20522053 // change owner2054 let old_owner = item.owner.clone();2055 item.owner = new_owner.clone();2056 <NftItemList<T>>::insert(collection_id, item_id, item);20572058 // update index collection2059 Self::move_token_index(collection_id, item_id, &old_owner, &new_owner)?;20602061 Ok(())2062 }2063 2064 fn set_re_fungible_variable_data(2065 collection_id: CollectionId,2066 item_id: TokenId,2067 data: Vec<u8>2068 ) -> DispatchResult {2069 let mut item = <ReFungibleItemList<T>>::get(collection_id, item_id);20702071 item.variable_data = data;20722073 <ReFungibleItemList<T>>::insert(collection_id, item_id, item);20742075 Ok(())2076 }20772078 fn set_nft_variable_data(2079 collection_id: CollectionId,2080 item_id: TokenId,2081 data: Vec<u8>2082 ) -> DispatchResult {2083 let mut item = <NftItemList<T>>::get(collection_id, item_id);2084 2085 item.variable_data = data;20862087 <NftItemList<T>>::insert(collection_id, item_id, item);2088 2089 Ok(())2090 }20912092 fn init_collection(item: &CollectionType<T::AccountId>) {2093 // check params2094 assert!(2095 item.decimal_points <= MAX_DECIMAL_POINTS,2096 "decimal_points parameter must be lower than MAX_DECIMAL_POINTS"2097 );2098 assert!(2099 item.name.len() <= 64,2100 "Collection name can not be longer than 63 char"2101 );2102 assert!(2103 item.name.len() <= 256,2104 "Collection description can not be longer than 255 char"2105 );2106 assert!(2107 item.token_prefix.len() <= 16,2108 "Token prefix can not be longer than 15 char"2109 );21102111 // Generate next collection ID2112 let next_id = CreatedCollectionCount::get()2113 .checked_add(1)2114 .unwrap();21152116 CreatedCollectionCount::put(next_id);2117 }21182119 fn init_nft_token(collection_id: CollectionId, item: &NftItemType<T::AccountId>) {2120 let current_index = <ItemListIndex>::get(collection_id)2121 .checked_add(1)2122 .unwrap();21232124 let item_owner = item.owner.clone();2125 Self::add_token_index(collection_id, current_index, &item.owner).unwrap();21262127 <ItemListIndex>::insert(collection_id, current_index);21282129 // Update balance2130 let new_balance = <Balance<T>>::get(collection_id, &item_owner)2131 .checked_add(1)2132 .unwrap();2133 <Balance<T>>::insert(collection_id, item_owner.clone(), new_balance);2134 }21352136 fn init_fungible_token(collection_id: CollectionId, owner: &T::AccountId, item: &FungibleItemType) {2137 let current_index = <ItemListIndex>::get(collection_id)2138 .checked_add(1)2139 .unwrap();21402141 Self::add_token_index(collection_id, current_index, owner).unwrap();21422143 <ItemListIndex>::insert(collection_id, current_index);21442145 // Update balance2146 let new_balance = <Balance<T>>::get(collection_id, owner)2147 .checked_add(item.value)2148 .unwrap();2149 <Balance<T>>::insert(collection_id, (*owner).clone(), new_balance);2150 }21512152 fn init_refungible_token(collection_id: CollectionId, item: &ReFungibleItemType<T::AccountId>) {2153 let current_index = <ItemListIndex>::get(collection_id)2154 .checked_add(1)2155 .unwrap();21562157 let value = item.owner.first().unwrap().fraction;2158 let owner = item.owner.first().unwrap().owner.clone();21592160 Self::add_token_index(collection_id, current_index, &owner).unwrap();21612162 <ItemListIndex>::insert(collection_id, current_index);21632164 // Update balance2165 let new_balance = <Balance<T>>::get(collection_id, &owner)2166 .checked_add(value)2167 .unwrap();2168 <Balance<T>>::insert(collection_id, owner.clone(), new_balance);2169 }21702171 fn add_token_index(collection_id: CollectionId, item_index: TokenId, owner: &T::AccountId) -> DispatchResult {21722173 // add to account limit2174 if <AccountItemCount<T>>::contains_key(owner) {21752176 // bound Owned tokens by a single address2177 let count = <AccountItemCount<T>>::get(owner);2178 ensure!(count < ChainLimit::get().account_token_ownership_limit, Error::<T>::AddressOwnershipLimitExceeded);21792180 <AccountItemCount<T>>::insert(owner.clone(), count2181 .checked_add(1)2182 .ok_or(Error::<T>::NumOverflow)?);2183 }2184 else {2185 <AccountItemCount<T>>::insert(owner.clone(), 1);2186 }21872188 let list_exists = <AddressTokens<T>>::contains_key(collection_id, owner);2189 if list_exists {2190 let mut list = <AddressTokens<T>>::get(collection_id, owner);2191 let item_contains = list.contains(&item_index.clone());21922193 if !item_contains {2194 list.push(item_index.clone());2195 }21962197 <AddressTokens<T>>::insert(collection_id, owner.clone(), list);2198 } else {2199 let mut itm = Vec::new();2200 itm.push(item_index.clone());2201 <AddressTokens<T>>::insert(collection_id, owner.clone(), itm);2202 }22032204 Ok(())2205 }22062207 fn remove_token_index(2208 collection_id: CollectionId,2209 item_index: TokenId,2210 owner: &T::AccountId,2211 ) -> DispatchResult {22122213 // update counter2214 <AccountItemCount<T>>::insert(owner.clone(), 2215 <AccountItemCount<T>>::get(owner)2216 .checked_sub(1)2217 .ok_or(Error::<T>::NumOverflow)?);221822192220 let list_exists = <AddressTokens<T>>::contains_key(collection_id, owner);2221 if list_exists {2222 let mut list = <AddressTokens<T>>::get(collection_id, owner);2223 let item_contains = list.contains(&item_index.clone());22242225 if item_contains {2226 list.retain(|&item| item != item_index);2227 <AddressTokens<T>>::insert(collection_id, owner.clone(), list);2228 }2229 }22302231 Ok(())2232 }22332234 fn move_token_index(2235 collection_id: CollectionId,2236 item_index: TokenId,2237 old_owner: &T::AccountId,2238 new_owner: &T::AccountId,2239 ) -> DispatchResult {2240 Self::remove_token_index(collection_id, item_index, old_owner)?;2241 Self::add_token_index(collection_id, item_index, new_owner)?;22422243 Ok(())2244 }2245 2246 fn ensure_contract_owned(account: T::AccountId, contract: &T::AccountId) -> DispatchResult {2247 if <ContractOwner<T>>::contains_key(contract.clone()) {2248 let owner = <ContractOwner<T>>::get(contract);2249 ensure!(account == owner, Error::<T>::NoPermission);2250 } else {2251 fail!(Error::<T>::NoPermission);2252 }22532254 Ok(())2255 }2256}22572258////////////////////////////////////////////////////////////////////////////////////////////////////2259// Economic models2260// #region22612262/// Fee multiplier.2263pub type Multiplier = FixedU128;22642265type BalanceOf<T> = <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::Balance;22662267/// Require the transactor pay for themselves and maybe include a tip to gain additional priority2268/// in the queue.2269#[derive(Encode, Decode, Clone, Eq, PartialEq)]2270pub struct ChargeTransactionPayment<T: Config>(#[codec(compact)] BalanceOf<T>);22712272impl<T: Config + Send + Sync> sp_std::fmt::Debug 2273 for ChargeTransactionPayment<T>2274{2275 #[cfg(feature = "std")]2276 fn fmt(&self, f: &mut sp_std::fmt::Formatter) -> sp_std::fmt::Result {2277 write!(f, "ChargeTransactionPayment<{:?}>", self.0)2278 }2279 #[cfg(not(feature = "std"))]2280 fn fmt(&self, _: &mut sp_std::fmt::Formatter) -> sp_std::fmt::Result {2281 Ok(())2282 }2283}22842285impl<T: Config> ChargeTransactionPayment<T>2286where2287 T::Call: Dispatchable<Info=DispatchInfo, PostInfo=PostDispatchInfo> + IsSubType<Call<T>> + IsSubType<pallet_contracts::Call<T>>,2288 BalanceOf<T>: Send + Sync + From<u64> + FixedPointOperand,2289 T::AccountId: AsRef<[u8]>,2290 T::AccountId: UncheckedFrom<T::Hash>,2291{2292 fn traditional_fee(2293 len: usize,2294 info: &DispatchInfoOf<T::Call>,2295 tip: BalanceOf<T>,2296 ) -> BalanceOf<T>2297 where2298 T::Call: Dispatchable<Info = DispatchInfo>,2299 {2300 <transaction_payment::Module<T>>::compute_fee(len as u32, info, tip)2301 }23022303 fn get_priority(len: usize, info: &DispatchInfoOf<T::Call>, final_fee: BalanceOf<T>) -> TransactionPriority {2304 let weight_saturation = T::BlockWeights::get().max_block / info.weight.max(1);2305 let max_block_length = *T::BlockLength::get().max.get(DispatchClass::Normal);2306 let len_saturation = max_block_length as u64 / (len as u64).max(1);2307 let coefficient: BalanceOf<T> = weight_saturation2308 .min(len_saturation)2309 .saturated_into::<BalanceOf<T>>();2310 final_fee2311 .saturating_mul(coefficient)2312 .saturated_into::<TransactionPriority>()2313 }23142315 fn withdraw_fee(2316 &self,2317 who: &T::AccountId,2318 call: &T::Call,2319 info: &DispatchInfoOf<T::Call>,2320 len: usize,2321 ) -> Result<2322 (2323 BalanceOf<T>,2324 <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::LiquidityInfo,2325 ),2326 TransactionValidityError,2327 > {2328 let tip = self.0;23292330 // Set fee based on call type. Creating collection costs 1 Unique.2331 // All other transactions have traditional fees so far2332 // let fee = match call.is_sub_type() {2333 // Some(Call::create_collection(..)) => <BalanceOf<T>>::from(1_000_000_000),2334 // _ => Self::traditional_fee(len, info, tip), // Flat fee model, use only for testing purposes2335 // // _ => <BalanceOf<T>>::from(100)2336 // };2337 let fee = Self::traditional_fee(len, info, tip);23382339 // Only mess with balances if fee is not zero.2340 if fee.is_zero() {2341 return <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::withdraw_fee(who, call, info, fee, tip)2342 .map(|i| (fee, i));2343 }23442345 // Determine who is paying transaction fee based on ecnomic model2346 // Parse call to extract collection ID and access collection sponsor2347 let mut sponsor: T::AccountId = match IsSubType::<Call<T>>::is_sub_type(call) {2348 Some(Call::create_item(collection_id, _owner, _properties)) => {23492350 // sponsor timeout2351 let block_number = <system::Module<T>>::block_number() as T::BlockNumber;23522353 let limit = <Collection<T>>::get(collection_id).limits.sponsor_transfer_timeout;2354 let mut sponsored = true;2355 if <CreateItemBasket<T>>::contains_key((collection_id, &who)) {2356 let last_tx_block = <CreateItemBasket<T>>::get((collection_id, &who));2357 let limit_time = last_tx_block + limit.into();2358 if block_number <= limit_time {2359 sponsored = false;2360 }2361 }2362 if sponsored {2363 <CreateItemBasket<T>>::insert((collection_id, who.clone()), block_number);2364 }23652366 // check free create limit2367 if (<Collection<T>>::get(collection_id).limits.sponsored_data_size >= (_properties.len() as u32)) &&2368 (<Collection<T>>::get(collection_id).sponsor_confirmed) &&2369 (sponsored)2370 {2371 <Collection<T>>::get(collection_id).sponsor2372 } else {2373 T::AccountId::default()2374 }2375 }2376 Some(Call::transfer(_new_owner, collection_id, item_id, _value)) => {2377 2378 let mut sponsor_transfer = false;2379 if <Collection<T>>::get(collection_id).sponsor_confirmed {23802381 let collection_limits = <Collection<T>>::get(collection_id).limits;2382 let collection_mode = <Collection<T>>::get(collection_id).mode;2383 2384 // sponsor timeout2385 let block_number = <system::Module<T>>::block_number() as T::BlockNumber;2386 sponsor_transfer = match collection_mode {2387 CollectionMode::NFT => {2388 2389 // get correct limit2390 let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {2391 collection_limits.sponsor_transfer_timeout2392 } else {2393 ChainLimit::get().nft_sponsor_transfer_timeout2394 };2395 2396 let mut sponsored = true;2397 if <NftTransferBasket<T>>::contains_key(collection_id, item_id) {2398 let last_tx_block = <NftTransferBasket<T>>::get(collection_id, item_id);2399 let limit_time = last_tx_block + limit.into();2400 if block_number <= limit_time {2401 sponsored = false;2402 }2403 }2404 if sponsored {2405 <NftTransferBasket<T>>::insert(collection_id, item_id, block_number);2406 }24072408 sponsored2409 }2410 CollectionMode::Fungible(_) => {2411 2412 // get correct limit2413 let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {2414 collection_limits.sponsor_transfer_timeout2415 } else {2416 ChainLimit::get().fungible_sponsor_transfer_timeout2417 };2418 2419 let block_number = <system::Module<T>>::block_number() as T::BlockNumber;2420 let mut sponsored = true;2421 if <FungibleTransferBasket<T>>::contains_key(collection_id, who) {2422 let last_tx_block = <FungibleTransferBasket<T>>::get(collection_id, who);2423 let limit_time = last_tx_block + limit.into();2424 if block_number <= limit_time {2425 sponsored = false;2426 }2427 }2428 if sponsored {2429 <FungibleTransferBasket<T>>::insert(collection_id, who, block_number);2430 }24312432 sponsored2433 }2434 CollectionMode::ReFungible => {2435 2436 // get correct limit2437 let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {2438 collection_limits.sponsor_transfer_timeout2439 } else {2440 ChainLimit::get().refungible_sponsor_transfer_timeout2441 };2442 2443 let mut sponsored = true;2444 if <ReFungibleTransferBasket<T>>::contains_key(collection_id, item_id) {2445 let last_tx_block = <ReFungibleTransferBasket<T>>::get(collection_id, item_id);2446 let limit_time = last_tx_block + limit.into();2447 if block_number <= limit_time {2448 sponsored = false;2449 }2450 }2451 if sponsored {2452 <ReFungibleTransferBasket<T>>::insert(collection_id, item_id, block_number);2453 }24542455 sponsored2456 }2457 _ => {2458 false2459 },2460 };2461 }24622463 if !sponsor_transfer {2464 T::AccountId::default()2465 } else {2466 <Collection<T>>::get(collection_id).sponsor2467 }2468 }24692470 _ => T::AccountId::default(),2471 };24722473 // Sponsor smart contracts2474 sponsor = match IsSubType::<pallet_contracts::Call<T>>::is_sub_type(call) {24752476 // On instantiation: set the contract owner2477 Some(pallet_contracts::Call::instantiate(_endowment, _gas_limit, code_hash, _data, salt)) => {24782479 let new_contract_address = <pallet_contracts::Module<T>>::contract_address(2480 &who,2481 code_hash,2482 salt,2483 );2484 <ContractOwner<T>>::insert(new_contract_address.clone(), who.clone());24852486 T::AccountId::default()2487 },24882489 // When the contract is called, check if the sponsoring is enabled and pay fees from contract endowment if it is2490 Some(pallet_contracts::Call::call(dest, _value, _gas_limit, _data)) => {24912492 let called_contract: T::AccountId = T::Lookup::lookup((*dest).clone()).unwrap_or(T::AccountId::default());24932494 let owned_contract = <ContractOwner<T>>::contains_key(called_contract.clone())2495 && <ContractOwner<T>>::get(called_contract.clone()) == *who;2496 let white_list_enabled = <ContractWhiteListEnabled<T>>::contains_key(called_contract.clone()) && <ContractWhiteListEnabled<T>>::get(called_contract.clone());2497 2498 if !owned_contract && white_list_enabled {2499 if !<ContractWhiteList<T>>::contains_key(called_contract.clone(), who) {2500 return Err(InvalidTransaction::Call.into());2501 }2502 }25032504 let mut sponsor_transfer = false;2505 if <ContractSponsoringRateLimit<T>>::contains_key(called_contract.clone()) {2506 let last_tx_block = <ContractSponsorBasket<T>>::get((&called_contract, &who));2507 let block_number = <system::Module<T>>::block_number() as T::BlockNumber;2508 let rate_limit = <ContractSponsoringRateLimit<T>>::get(&called_contract);2509 let limit_time = last_tx_block + rate_limit;25102511 if block_number >= limit_time {2512 <ContractSponsorBasket<T>>::insert((called_contract.clone(), who.clone()), block_number);2513 sponsor_transfer = true;2514 }2515 } else {2516 sponsor_transfer = false;2517 }2518 2519 2520 let mut sp = T::AccountId::default();2521 if sponsor_transfer {2522 if <ContractSelfSponsoring<T>>::contains_key(called_contract.clone()) {2523 if <ContractSelfSponsoring<T>>::get(called_contract.clone()) {2524 sp = called_contract;2525 }2526 }2527 }25282529 sp2530 },25312532 _ => sponsor,2533 };25342535 let mut who_pays_fee: T::AccountId = sponsor.clone();2536 if sponsor == T::AccountId::default() {2537 who_pays_fee = who.clone();2538 }25392540 <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::withdraw_fee(&who_pays_fee, call, info, fee, tip)2541 .map(|i| (fee, i))2542 }2543}254425452546impl<T: Config + Send + Sync> SignedExtension2547 for ChargeTransactionPayment<T>2548where2549 BalanceOf<T>: Send + Sync + From<u64> + FixedPointOperand,2550 T::Call: Dispatchable<Info = DispatchInfo, PostInfo = PostDispatchInfo> + IsSubType<Call<T>> + IsSubType<pallet_contracts::Call<T>>,2551 T::AccountId: AsRef<[u8]>,2552 T::AccountId: UncheckedFrom<T::Hash>,2553{2554 const IDENTIFIER: &'static str = "ChargeTransactionPayment";2555 type AccountId = T::AccountId;2556 type Call = T::Call;2557 type AdditionalSigned = ();2558 type Pre = (2559 // tip2560 BalanceOf<T>,2561 // who pays fee2562 Self::AccountId,2563 // imbalance resulting from withdrawing the fee2564 <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::LiquidityInfo,2565 );2566 fn additional_signed(&self) -> sp_std::result::Result<(), TransactionValidityError> {2567 Ok(())2568 }25692570 fn validate(2571 &self,2572 who: &Self::AccountId,2573 call: &Self::Call,2574 info: &DispatchInfoOf<Self::Call>,2575 len: usize,2576 ) -> TransactionValidity {2577 let (fee, _) = self.withdraw_fee(who, call, info, len)?;2578 Ok(ValidTransaction {2579 priority: Self::get_priority(len, info, fee),2580 ..Default::default()2581 })2582 }25832584 fn pre_dispatch(2585 self,2586 who: &Self::AccountId,2587 call: &Self::Call,2588 info: &DispatchInfoOf<Self::Call>,2589 len: usize,2590 ) -> Result<Self::Pre, TransactionValidityError> {2591 let (_fee, imbalance) = self.withdraw_fee(who, call, info, len)?;2592 Ok((self.0, who.clone(), imbalance))2593 }25942595 fn post_dispatch(2596 pre: Self::Pre,2597 info: &DispatchInfoOf<Self::Call>,2598 post_info: &PostDispatchInfoOf<Self::Call>,2599 len: usize,2600 _result: &DispatchResult,2601 ) -> Result<(), TransactionValidityError> {2602 let (tip, who, imbalance) = pre;2603 let actual_fee = transaction_payment::Module::<T>::compute_actual_fee(2604 len as u32,2605 info,2606 post_info,2607 tip,2608 );2609 <T as transaction_payment::Config>::OnChargeTransaction::correct_and_deposit_fee(&who, info, post_info, actual_fee, tip, imbalance)?;2610 Ok(())2611 }2612}26132614// #endregion1//2// This file is subject to the terms and conditions defined in3// file 'LICENSE', which is part of this source code package.4//56#![recursion_limit = "1024"]78#![cfg_attr(not(feature = "std"), no_std)]910#[cfg(feature = "std")]11pub use std::*;1213#[cfg(feature = "std")]14pub use serde::*;1516use codec::{Decode, Encode};17pub use frame_support::{18 construct_runtime, decl_event, decl_module, decl_storage, decl_error,19 dispatch::DispatchResult,20 ensure, fail, parameter_types,21 traits::{22 Currency, ExistenceRequirement, Get, Imbalance, KeyOwnerProofSystem, OnUnbalanced,23 Randomness, IsSubType,24 },25 weights::{26 constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},27 DispatchInfo, GetDispatchInfo, IdentityFee, Pays, PostDispatchInfo, Weight,28 WeightToFeePolynomial, DispatchClass,29 },30 StorageValue,31};3233use frame_system::{self as system, ensure_signed, ensure_root};34use sp_runtime::sp_std::prelude::Vec;35use sp_runtime::{36 traits::{37 DispatchInfoOf, Dispatchable, PostDispatchInfoOf, Saturating, SaturatedConversion, SignedExtension, Zero,38 },39 transaction_validity::{40 TransactionPriority, InvalidTransaction, TransactionValidity, TransactionValidityError, ValidTransaction,41 },42 FixedPointOperand, FixedU128,43};44use sp_runtime::traits::StaticLookup;45use pallet_contracts::chain_extension::UncheckedFrom;46use transaction_payment::OnChargeTransaction;4748#[cfg(test)]49mod mock;5051#[cfg(test)]52mod tests;5354mod default_weights;5556pub const MAX_DECIMAL_POINTS: DecimalPoints = 30;57pub const MAX_REFUNGIBLE_PIECES: u128 = 1_000_000_000_000_000_000_000;58pub const MAX_SPONSOR_TIMEOUT: u32 = 10_368_000;59pub const MAX_TOKEN_OWNERSHIP: u32 = 10_000_000;6061// Structs62// #region6364pub type CollectionId = u32;65pub type TokenId = u32;66pub type DecimalPoints = u8;6768#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq)]69#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]70pub enum CollectionMode {71 Invalid,72 NFT,73 // decimal points74 Fungible(DecimalPoints),75 ReFungible,76}7778impl Default for CollectionMode {79 fn default() -> Self {80 Self::Invalid81 }82}8384impl Into<u8> for CollectionMode {85 fn into(self) -> u8 {86 match self {87 CollectionMode::Invalid => 0,88 CollectionMode::NFT => 1,89 CollectionMode::Fungible(_) => 2,90 CollectionMode::ReFungible => 3,91 }92 }93}9495#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq)]96#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]97pub enum AccessMode {98 Normal,99 WhiteList,100}101impl Default for AccessMode {102 fn default() -> Self {103 Self::Normal104 }105}106107#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq)]108#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]109pub enum SchemaVersion {110 ImageURL,111 Unique,112}113impl Default for SchemaVersion {114 fn default() -> Self {115 Self::ImageURL116 }117}118119#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]120#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]121pub struct Ownership<AccountId> {122 pub owner: AccountId,123 pub fraction: u128,124}125126#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]127#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]128pub struct CollectionType<AccountId> {129 pub owner: AccountId,130 pub mode: CollectionMode,131 pub access: AccessMode,132 pub decimal_points: DecimalPoints,133 pub name: Vec<u16>, // 64 include null escape char134 pub description: Vec<u16>, // 256 include null escape char135 pub token_prefix: Vec<u8>, // 16 include null escape char136 pub mint_mode: bool,137 pub offchain_schema: Vec<u8>,138 pub schema_version: SchemaVersion,139 pub sponsor: AccountId, // Who pays fees. If set to default address, the fees are applied to the transaction sender140 pub sponsor_confirmed: bool, // False if sponsor address has not yet confirmed sponsorship. True otherwise.141 pub limits: CollectionLimits, // Collection private restrictions 142 pub variable_on_chain_schema: Vec<u8>, //143 pub const_on_chain_schema: Vec<u8>, //144}145146#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]147#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]148pub struct NftItemType<AccountId> {149 pub owner: AccountId,150 pub const_data: Vec<u8>,151 pub variable_data: Vec<u8>,152}153154#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]155#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]156pub struct FungibleItemType {157 pub value: u128,158}159160#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]161#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]162pub struct ReFungibleItemType<AccountId> {163 pub owner: Vec<Ownership<AccountId>>,164 pub const_data: Vec<u8>,165 pub variable_data: Vec<u8>,166}167168// #[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]169// #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]170// pub struct VestingItem<AccountId, Moment> {171// pub sender: AccountId,172// pub recipient: AccountId,173// pub collection_id: CollectionId,174// pub item_id: TokenId,175// pub amount: u64,176// pub vesting_date: Moment,177// }178179#[derive(Encode, Decode, Debug, Clone, PartialEq)]180#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]181pub struct CollectionLimits {182 pub account_token_ownership_limit: u32,183 pub sponsored_data_size: u32,184 pub token_limit: u32,185186 // Timeouts for item types in passed blocks187 pub sponsor_transfer_timeout: u32,188 pub owner_can_transfer: bool,189 pub owner_can_destroy: bool,190}191192impl Default for CollectionLimits {193 fn default() -> CollectionLimits {194 CollectionLimits { 195 account_token_ownership_limit: 10_000_000, 196 token_limit: u32::max_value(),197 sponsored_data_size: u32::max_value(), 198 sponsor_transfer_timeout: 14400,199 owner_can_transfer: true,200 owner_can_destroy: true201 }202 }203}204205#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]206#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]207pub struct ChainLimits {208 pub collection_numbers_limit: u32,209 pub account_token_ownership_limit: u32,210 pub collections_admins_limit: u64,211 pub custom_data_limit: u32,212213 // Timeouts for item types in passed blocks214 pub nft_sponsor_transfer_timeout: u32,215 pub fungible_sponsor_transfer_timeout: u32,216 pub refungible_sponsor_transfer_timeout: u32,217218 // Schema limits219 pub offchain_schema_limit: u32,220 pub variable_on_chain_schema_limit: u32,221 pub const_on_chain_schema_limit: u32,222}223224pub trait WeightInfo {225 fn create_collection() -> Weight;226 fn destroy_collection() -> Weight;227 fn add_to_white_list() -> Weight;228 fn remove_from_white_list() -> Weight;229 fn set_public_access_mode() -> Weight;230 fn set_mint_permission() -> Weight;231 fn change_collection_owner() -> Weight;232 fn add_collection_admin() -> Weight;233 fn remove_collection_admin() -> Weight;234 fn set_collection_sponsor() -> Weight;235 fn confirm_sponsorship() -> Weight;236 fn remove_collection_sponsor() -> Weight;237 fn create_item(s: usize) -> Weight;238 fn burn_item() -> Weight;239 fn transfer() -> Weight;240 fn approve() -> Weight;241 fn transfer_from() -> Weight;242 fn set_offchain_schema() -> Weight;243 fn set_const_on_chain_schema() -> Weight;244 fn set_variable_on_chain_schema() -> Weight;245 fn set_variable_meta_data() -> Weight;246 fn enable_contract_sponsoring() -> Weight;247 fn set_schema_version() -> Weight;248 fn set_chain_limits() -> Weight;249 fn set_contract_sponsoring_rate_limit() -> Weight;250 fn toggle_contract_white_list() -> Weight;251 fn add_to_contract_white_list() -> Weight;252 fn remove_from_contract_white_list() -> Weight;253 fn set_collection_limits() -> Weight;254}255256#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]257#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]258pub struct CreateNftData {259 pub const_data: Vec<u8>,260 pub variable_data: Vec<u8>,261}262263#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]264#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]265pub struct CreateFungibleData {266 pub value: u128,267}268269#[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]270#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]271pub struct CreateReFungibleData {272 pub const_data: Vec<u8>,273 pub variable_data: Vec<u8>,274 pub pieces: u128,275}276277#[derive(Encode, Decode, Debug, Clone, PartialEq)]278#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]279pub enum CreateItemData {280 NFT(CreateNftData),281 Fungible(CreateFungibleData),282 ReFungible(CreateReFungibleData),283}284285impl CreateItemData {286 pub fn len(&self) -> usize {287 let len = match self {288 CreateItemData::NFT(data) => data.variable_data.len() + data.const_data.len(),289 CreateItemData::ReFungible(data) => data.variable_data.len() + data.const_data.len(),290 _ => 0291 };292 293 return len;294 }295}296297impl From<CreateNftData> for CreateItemData {298 fn from(item: CreateNftData) -> Self {299 CreateItemData::NFT(item)300 }301}302303impl From<CreateReFungibleData> for CreateItemData {304 fn from(item: CreateReFungibleData) -> Self {305 CreateItemData::ReFungible(item)306 }307}308309impl From<CreateFungibleData> for CreateItemData {310 fn from(item: CreateFungibleData) -> Self {311 CreateItemData::Fungible(item)312 }313}314315316decl_error! {317 /// Error for non-fungible-token module.318 pub enum Error for Module<T: Config> {319 /// Total collections bound exceeded.320 TotalCollectionsLimitExceeded,321 /// Decimal_points parameter must be lower than MAX_DECIMAL_POINTS constant, currently it is 30.322 CollectionDecimalPointLimitExceeded, 323 /// Collection name can not be longer than 63 char.324 CollectionNameLimitExceeded, 325 /// Collection description can not be longer than 255 char.326 CollectionDescriptionLimitExceeded, 327 /// Token prefix can not be longer than 15 char.328 CollectionTokenPrefixLimitExceeded,329 /// This collection does not exist.330 CollectionNotFound,331 /// Item not exists.332 TokenNotFound,333 /// Admin not found334 AdminNotFound,335 /// Arithmetic calculation overflow.336 NumOverflow, 337 /// Account already has admin role.338 AlreadyAdmin, 339 /// You do not own this collection.340 NoPermission,341 /// This address is not set as sponsor, use setCollectionSponsor first.342 ConfirmUnsetSponsorFail,343 /// Collection is not in mint mode.344 PublicMintingNotAllowed,345 /// Sender parameter and item owner must be equal.346 MustBeTokenOwner,347 /// Item balance not enough.348 TokenValueTooLow,349 /// Size of item is too large.350 NftSizeLimitExceeded,351 /// No approve found352 ApproveNotFound,353 /// Requested value more than approved.354 TokenValueNotEnough,355 /// Only approved addresses can call this method.356 ApproveRequired,357 /// Address is not in white list.358 AddresNotInWhiteList,359 /// Number of collection admins bound exceeded.360 CollectionAdminsLimitExceeded,361 /// Owned tokens by a single address bound exceeded.362 AddressOwnershipLimitExceeded,363 /// Length of items properties must be greater than 0.364 EmptyArgument,365 /// const_data exceeded data limit.366 TokenConstDataLimitExceeded,367 /// variable_data exceeded data limit.368 TokenVariableDataLimitExceeded,369 /// Not NFT item data used to mint in NFT collection.370 NotNftDataUsedToMintNftCollectionToken,371 /// Not Fungible item data used to mint in Fungible collection.372 NotFungibleDataUsedToMintFungibleCollectionToken,373 /// Not Re Fungible item data used to mint in Re Fungible collection.374 NotReFungibleDataUsedToMintReFungibleCollectionToken,375 /// Unexpected collection type.376 UnexpectedCollectionType,377 /// Can't store metadata in fungible tokens.378 CantStoreMetadataInFungibleTokens,379 /// Collection token limit exceeded380 CollectionTokenLimitExceeded,381 /// Account token limit exceeded per collection382 AccountTokenLimitExceeded,383 /// Collection limit bounds per collection exceeded384 CollectionLimitBoundsExceeded,385 /// Schema data size limit bound exceeded386 SchemaDataLimitExceeded,387 /// Maximum refungibility exceeded388 WrongRefungiblePieces389 }390}391392pub trait Config: system::Config + Sized + transaction_payment::Config + pallet_contracts::Config {393 type Event: From<Event<Self>> + Into<<Self as system::Config>::Event>;394395 /// Weight information for extrinsics in this pallet.396 type WeightInfo: WeightInfo;397}398399#[cfg(feature = "runtime-benchmarks")]400mod benchmarking;401402// #endregion403404decl_storage! {405 trait Store for Module<T: Config> as Nft {406407 // Private members408 NextCollectionID: CollectionId;409 CreatedCollectionCount: u32;410 ChainVersion: u64;411 ItemListIndex: map hasher(identity) CollectionId => TokenId;412413 // Chain limits struct414 pub ChainLimit get(fn chain_limit) config(): ChainLimits;415416 // Bound counters417 CollectionCount: u32;418 pub AccountItemCount get(fn account_item_count): map hasher(twox_64_concat) T::AccountId => u32;419420 // Basic collections421 pub Collection get(fn collection) config(): map hasher(identity) CollectionId => CollectionType<T::AccountId>;422 pub AdminList get(fn admin_list_collection): map hasher(identity) CollectionId => Vec<T::AccountId>;423 pub WhiteList get(fn white_list): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => bool;424425 /// Balance owner per collection map426 pub Balance get(fn balance_count): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => u128;427428 /// second parameter: item id + owner account id + spender account id429 pub Allowances get(fn approved): double_map hasher(identity) CollectionId, hasher(twox_64_concat) (TokenId, T::AccountId, T::AccountId) => u128;430431 /// Item collections432 pub NftItemList get(fn nft_item_id) config(): double_map hasher(identity) CollectionId, hasher(identity) TokenId => NftItemType<T::AccountId>;433 pub FungibleItemList get(fn fungible_item_id) config(): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => FungibleItemType;434 pub ReFungibleItemList get(fn refungible_item_id) config(): double_map hasher(identity) CollectionId, hasher(identity) TokenId => ReFungibleItemType<T::AccountId>;435436 /// Index list437 pub AddressTokens get(fn address_tokens): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => Vec<TokenId>;438439 /// Tokens transfer baskets440 pub CreateItemBasket get(fn create_item_basket): map hasher(twox_64_concat) (CollectionId, T::AccountId) => T::BlockNumber;441 pub NftTransferBasket get(fn nft_transfer_basket): double_map hasher(identity) CollectionId, hasher(identity) TokenId => T::BlockNumber;442 pub FungibleTransferBasket get(fn fungible_transfer_basket): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => T::BlockNumber;443 pub ReFungibleTransferBasket get(fn refungible_transfer_basket): double_map hasher(identity) CollectionId, hasher(identity) TokenId => T::BlockNumber;444445 // Contract Sponsorship and Ownership446 pub ContractOwner get(fn contract_owner): map hasher(twox_64_concat) T::AccountId => T::AccountId;447 pub ContractSelfSponsoring get(fn contract_self_sponsoring): map hasher(twox_64_concat) T::AccountId => bool;448 pub ContractSponsorBasket get(fn contract_sponsor_basket): map hasher(twox_64_concat) (T::AccountId, T::AccountId) => T::BlockNumber;449 pub ContractSponsoringRateLimit get(fn contract_sponsoring_rate_limit): map hasher(twox_64_concat) T::AccountId => T::BlockNumber;450 pub ContractWhiteListEnabled get(fn contract_white_list_enabled): map hasher(twox_64_concat) T::AccountId => bool; 451 pub ContractWhiteList get(fn contract_white_list): double_map hasher(twox_64_concat) T::AccountId, hasher(twox_64_concat) T::AccountId => bool; 452 }453 add_extra_genesis {454 build(|config: &GenesisConfig<T>| {455 // Modification of storage456 for (_num, _c) in &config.collection {457 <Module<T>>::init_collection(_c);458 }459460 for (_num, _c, _i) in &config.nft_item_id {461 <Module<T>>::init_nft_token(*_c, _i);462 }463464 for (collection_id, account_id, fungible_item) in &config.fungible_item_id {465 <Module<T>>::init_fungible_token(*collection_id, account_id, fungible_item);466 }467468 for (_num, _c, _i) in &config.refungible_item_id {469 <Module<T>>::init_refungible_token(*_c, _i);470 }471 })472 }473}474475decl_event!(476 pub enum Event<T>477 where478 AccountId = <T as system::Config>::AccountId,479 {480 /// New collection was created481 /// 482 /// # Arguments483 /// 484 /// * collection_id: Globally unique identifier of newly created collection.485 /// 486 /// * mode: [CollectionMode] converted into u8.487 /// 488 /// * account_id: Collection owner.489 Created(CollectionId, u8, AccountId),490491 /// New item was created.492 /// 493 /// # Arguments494 /// 495 /// * collection_id: Id of the collection where item was created.496 /// 497 /// * item_id: Id of an item. Unique within the collection.498 ItemCreated(CollectionId, TokenId),499500 /// Collection item was burned.501 /// 502 /// # Arguments503 /// 504 /// collection_id.505 /// 506 /// item_id: Identifier of burned NFT.507 ItemDestroyed(CollectionId, TokenId),508509 /// Item was transferred510 ///511 /// * collection_id: Id of collection to which item is belong512 ///513 /// * item_id: Id of an item514 ///515 /// * sender: Original owner of item516 ///517 /// * recipient: New owner of item518 ///519 /// * amount: Always 1 for NFT520 Transfer(CollectionId, TokenId, AccountId, AccountId, u128),521 }522);523524decl_module! {525 pub struct Module<T: Config> for enum Call 526 where 527 origin: T::Origin528 {529 fn deposit_event() = default;530 type Error = Error<T>;531532 fn on_initialize(now: T::BlockNumber) -> Weight {533534 if ChainVersion::get() < 2535 {536 let value = NextCollectionID::get();537 CreatedCollectionCount::put(value);538 ChainVersion::put(2);539 }540541 0542 }543544 /// This method creates a Collection of NFTs. Each Token may have multiple properties encoded as an array of bytes of certain length. The initial owner and admin of the collection are set to the address that signed the transaction. Both addresses can be changed later.545 /// 546 /// # Permissions547 /// 548 /// * Anyone.549 /// 550 /// # Arguments551 /// 552 /// * collection_name: UTF-16 string with collection name (limit 64 characters), will be stored as zero-terminated.553 /// 554 /// * collection_description: UTF-16 string with collection description (limit 256 characters), will be stored as zero-terminated.555 /// 556 /// * token_prefix: UTF-8 string with token prefix.557 /// 558 /// * mode: [CollectionMode] collection type and type dependent data.559 // returns collection ID560 #[weight = <T as Config>::WeightInfo::create_collection()]561 pub fn create_collection(origin,562 collection_name: Vec<u16>,563 collection_description: Vec<u16>,564 token_prefix: Vec<u8>,565 mode: CollectionMode) -> DispatchResult {566567 // Anyone can create a collection568 let who = ensure_signed(origin)?;569570 let decimal_points = match mode {571 CollectionMode::Fungible(points) => points,572 _ => 0573 };574575 // bound Total number of collections576 ensure!(CollectionCount::get() < ChainLimit::get().collection_numbers_limit, Error::<T>::TotalCollectionsLimitExceeded);577578 // check params579 ensure!(decimal_points <= MAX_DECIMAL_POINTS, Error::<T>::CollectionDecimalPointLimitExceeded);580 ensure!(collection_name.len() <= 64, Error::<T>::CollectionNameLimitExceeded);581 ensure!(collection_description.len() <= 256, Error::<T>::CollectionDescriptionLimitExceeded);582 ensure!(token_prefix.len() <= 16, Error::<T>::CollectionTokenPrefixLimitExceeded);583584 // Generate next collection ID585 let next_id = CreatedCollectionCount::get()586 .checked_add(1)587 .ok_or(Error::<T>::NumOverflow)?;588589 // bound counter590 let total = CollectionCount::get()591 .checked_add(1)592 .ok_or(Error::<T>::NumOverflow)?;593594 CreatedCollectionCount::put(next_id);595 CollectionCount::put(total);596597 // Create new collection598 let new_collection = CollectionType {599 owner: who.clone(),600 name: collection_name,601 mode: mode.clone(),602 mint_mode: false,603 access: AccessMode::Normal,604 description: collection_description,605 decimal_points: decimal_points,606 token_prefix: token_prefix,607 offchain_schema: Vec::new(),608 schema_version: SchemaVersion::ImageURL,609 sponsor: T::AccountId::default(),610 sponsor_confirmed: false,611 variable_on_chain_schema: Vec::new(),612 const_on_chain_schema: Vec::new(),613 limits: CollectionLimits::default()614 };615616 // Add new collection to map617 <Collection<T>>::insert(next_id, new_collection);618619 // call event620 Self::deposit_event(RawEvent::Created(next_id, mode.into(), who.clone()));621622 Ok(())623 }624625 /// **DANGEROUS**: Destroys collection and all NFTs within this collection. Users irrecoverably lose their assets and may lose real money.626 /// 627 /// # Permissions628 /// 629 /// * Collection Owner.630 /// 631 /// # Arguments632 /// 633 /// * collection_id: collection to destroy.634 #[weight = <T as Config>::WeightInfo::destroy_collection()]635 pub fn destroy_collection(origin, collection_id: CollectionId) -> DispatchResult {636637 let sender = ensure_signed(origin)?;638 Self::check_owner_permissions(collection_id, sender)?;639640 <AddressTokens<T>>::remove_prefix(collection_id);641 <Allowances<T>>::remove_prefix(collection_id);642 <Balance<T>>::remove_prefix(collection_id);643 <ItemListIndex>::remove(collection_id);644 <AdminList<T>>::remove(collection_id);645 <Collection<T>>::remove(collection_id);646 <WhiteList<T>>::remove_prefix(collection_id);647648 <NftItemList<T>>::remove_prefix(collection_id);649 <FungibleItemList<T>>::remove_prefix(collection_id);650 <ReFungibleItemList<T>>::remove_prefix(collection_id);651652 <NftTransferBasket<T>>::remove_prefix(collection_id);653 <FungibleTransferBasket<T>>::remove_prefix(collection_id);654 <ReFungibleTransferBasket<T>>::remove_prefix(collection_id);655656 if CollectionCount::get() > 0657 {658 // bound couter659 let total = CollectionCount::get()660 .checked_sub(1)661 .ok_or(Error::<T>::NumOverflow)?;662663 CollectionCount::put(total);664 }665666 Ok(())667 }668669 /// Add an address to white list.670 /// 671 /// # Permissions672 /// 673 /// * Collection Owner674 /// * Collection Admin675 /// 676 /// # Arguments677 /// 678 /// * collection_id.679 /// 680 /// * address.681 #[weight = <T as Config>::WeightInfo::add_to_white_list()]682 pub fn add_to_white_list(origin, collection_id: CollectionId, address: T::AccountId) -> DispatchResult{683684 let sender = ensure_signed(origin)?;685 Self::check_owner_or_admin_permissions(collection_id, sender)?;686687 <WhiteList<T>>::insert(collection_id, address, true);688 689 Ok(())690 }691692 /// Remove an address from white list.693 /// 694 /// # Permissions695 /// 696 /// * Collection Owner697 /// * Collection Admin698 /// 699 /// # Arguments700 /// 701 /// * collection_id.702 /// 703 /// * address.704 #[weight = <T as Config>::WeightInfo::remove_from_white_list()]705 pub fn remove_from_white_list(origin, collection_id: CollectionId, address: T::AccountId) -> DispatchResult{706707 let sender = ensure_signed(origin)?;708 Self::check_owner_or_admin_permissions(collection_id, sender)?;709710 <WhiteList<T>>::remove(collection_id, address);711712 Ok(())713 }714715 /// Toggle between normal and white list access for the methods with access for `Anyone`.716 /// 717 /// # Permissions718 /// 719 /// * Collection Owner.720 /// 721 /// # Arguments722 /// 723 /// * collection_id.724 /// 725 /// * mode: [AccessMode]726 #[weight = <T as Config>::WeightInfo::set_public_access_mode()]727 pub fn set_public_access_mode(origin, collection_id: CollectionId, mode: AccessMode) -> DispatchResult728 {729 let sender = ensure_signed(origin)?;730731 Self::check_owner_permissions(collection_id, sender)?;732 let mut target_collection = <Collection<T>>::get(collection_id);733 target_collection.access = mode;734 <Collection<T>>::insert(collection_id, target_collection);735736 Ok(())737 }738739 /// Allows Anyone to create tokens if:740 /// * White List is enabled, and741 /// * Address is added to white list, and742 /// * This method was called with True parameter743 /// 744 /// # Permissions745 /// * Collection Owner746 ///747 /// # Arguments748 /// 749 /// * collection_id.750 /// 751 /// * mint_permission: Boolean parameter. If True, allows minting to Anyone with conditions above.752 #[weight = <T as Config>::WeightInfo::set_mint_permission()]753 pub fn set_mint_permission(origin, collection_id: CollectionId, mint_permission: bool) -> DispatchResult754 {755 let sender = ensure_signed(origin)?;756757 Self::check_owner_permissions(collection_id, sender)?;758 let mut target_collection = <Collection<T>>::get(collection_id);759 target_collection.mint_mode = mint_permission;760 <Collection<T>>::insert(collection_id, target_collection);761762 Ok(())763 }764765 /// Change the owner of the collection.766 /// 767 /// # Permissions768 /// 769 /// * Collection Owner.770 /// 771 /// # Arguments772 /// 773 /// * collection_id.774 /// 775 /// * new_owner.776 #[weight = <T as Config>::WeightInfo::change_collection_owner()]777 pub fn change_collection_owner(origin, collection_id: CollectionId, new_owner: T::AccountId) -> DispatchResult {778779 let sender = ensure_signed(origin)?;780 Self::check_owner_permissions(collection_id, sender)?;781 let mut target_collection = <Collection<T>>::get(collection_id);782 target_collection.owner = new_owner;783 <Collection<T>>::insert(collection_id, target_collection);784785 Ok(())786 }787788 /// Adds an admin of the Collection.789 /// NFT Collection can be controlled by multiple admin addresses (some which can also be servers, for example). Admins can issue and burn NFTs, as well as add and remove other admins, but cannot change NFT or Collection ownership. 790 /// 791 /// # Permissions792 /// 793 /// * Collection Owner.794 /// * Collection Admin.795 /// 796 /// # Arguments797 /// 798 /// * collection_id: ID of the Collection to add admin for.799 /// 800 /// * new_admin_id: Address of new admin to add.801 #[weight = <T as Config>::WeightInfo::add_collection_admin()]802 pub fn add_collection_admin(origin, collection_id: CollectionId, new_admin_id: T::AccountId) -> DispatchResult {803804 let sender = ensure_signed(origin)?;805 Self::check_owner_or_admin_permissions(collection_id, sender)?;806 let mut admin_arr: Vec<T::AccountId> = Vec::new();807808 if <AdminList<T>>::contains_key(collection_id)809 {810 admin_arr = <AdminList<T>>::get(collection_id);811 ensure!(!admin_arr.contains(&new_admin_id), Error::<T>::AlreadyAdmin);812 }813814 // Number of collection admins815 ensure!((admin_arr.len() as u64) < ChainLimit::get().collections_admins_limit, Error::<T>::CollectionAdminsLimitExceeded);816817 admin_arr.push(new_admin_id);818 <AdminList<T>>::insert(collection_id, admin_arr);819820 Ok(())821 }822823 /// Remove admin address of the Collection. An admin address can remove itself. List of admins may become empty, in which case only Collection Owner will be able to add an Admin.824 ///825 /// # Permissions826 /// 827 /// * Collection Owner.828 /// * Collection Admin.829 /// 830 /// # Arguments831 /// 832 /// * collection_id: ID of the Collection to remove admin for.833 /// 834 /// * account_id: Address of admin to remove.835 #[weight = <T as Config>::WeightInfo::remove_collection_admin()]836 pub fn remove_collection_admin(origin, collection_id: CollectionId, account_id: T::AccountId) -> DispatchResult {837838 let sender = ensure_signed(origin)?;839 Self::check_owner_or_admin_permissions(collection_id, sender)?;840 ensure!(<AdminList<T>>::contains_key(collection_id), Error::<T>::AdminNotFound);841842 let mut admin_arr = <AdminList<T>>::get(collection_id);843 admin_arr.retain(|i| *i != account_id);844 <AdminList<T>>::insert(collection_id, admin_arr);845846 Ok(())847 }848849 /// # Permissions850 /// 851 /// * Collection Owner852 /// 853 /// # Arguments854 /// 855 /// * collection_id.856 /// 857 /// * new_sponsor.858 #[weight = <T as Config>::WeightInfo::set_collection_sponsor()]859 pub fn set_collection_sponsor(origin, collection_id: CollectionId, new_sponsor: T::AccountId) -> DispatchResult {860861 let sender = ensure_signed(origin)?;862 ensure!(<Collection<T>>::contains_key(collection_id), Error::<T>::CollectionNotFound);863864 let mut target_collection = <Collection<T>>::get(collection_id);865 ensure!(sender == target_collection.owner, Error::<T>::NoPermission);866867 target_collection.sponsor = new_sponsor;868 target_collection.sponsor_confirmed = false;869 <Collection<T>>::insert(collection_id, target_collection);870871 Ok(())872 }873874 /// # Permissions875 /// 876 /// * Sponsor.877 /// 878 /// # Arguments879 /// 880 /// * collection_id.881 #[weight = <T as Config>::WeightInfo::confirm_sponsorship()]882 pub fn confirm_sponsorship(origin, collection_id: CollectionId) -> DispatchResult {883884 let sender = ensure_signed(origin)?;885 ensure!(<Collection<T>>::contains_key(collection_id), Error::<T>::CollectionNotFound);886887 let mut target_collection = <Collection<T>>::get(collection_id);888 ensure!(sender == target_collection.sponsor, Error::<T>::ConfirmUnsetSponsorFail);889890 target_collection.sponsor_confirmed = true;891 <Collection<T>>::insert(collection_id, target_collection);892893 Ok(())894 }895896 /// Switch back to pay-per-own-transaction model.897 ///898 /// # Permissions899 ///900 /// * Collection owner.901 /// 902 /// # Arguments903 /// 904 /// * collection_id.905 #[weight = <T as Config>::WeightInfo::remove_collection_sponsor()]906 pub fn remove_collection_sponsor(origin, collection_id: CollectionId) -> DispatchResult {907908 let sender = ensure_signed(origin)?;909 ensure!(<Collection<T>>::contains_key(collection_id), Error::<T>::CollectionNotFound);910911 let mut target_collection = <Collection<T>>::get(collection_id);912 ensure!(sender == target_collection.owner, Error::<T>::NoPermission);913914 target_collection.sponsor = T::AccountId::default();915 target_collection.sponsor_confirmed = false;916 <Collection<T>>::insert(collection_id, target_collection);917918 Ok(())919 }920921 /// This method creates a concrete instance of NFT Collection created with CreateCollection method.922 /// 923 /// # Permissions924 /// 925 /// * Collection Owner.926 /// * Collection Admin.927 /// * Anyone if928 /// * White List is enabled, and929 /// * Address is added to white list, and930 /// * MintPermission is enabled (see SetMintPermission method)931 /// 932 /// # Arguments933 /// 934 /// * collection_id: ID of the collection.935 /// 936 /// * owner: Address, initial owner of the NFT.937 ///938 /// * data: Token data to store on chain.939 // #[weight =940 // (130_000_000 as Weight)941 // .saturating_add((2135 as Weight).saturating_mul((properties.len() as u64) as Weight))942 // .saturating_add(RocksDbWeight::get().reads(10 as Weight))943 // .saturating_add(RocksDbWeight::get().writes(8 as Weight))]944945 #[weight = <T as Config>::WeightInfo::create_item(data.len())]946 pub fn create_item(origin, collection_id: CollectionId, owner: T::AccountId, data: CreateItemData) -> DispatchResult {947948 let sender = ensure_signed(origin)?;949950 Self::collection_exists(collection_id)?;951952 let target_collection = <Collection<T>>::get(collection_id);953954 Self::can_create_items_in_collection(collection_id, &target_collection, &sender, &owner)?;955 Self::validate_create_item_args(&target_collection, &data)?;956 Self::create_item_no_validation(collection_id, owner, data)?;957958 Ok(())959 }960961 /// This method creates multiple instances of NFT Collection created with CreateCollection method.962 /// 963 /// # Permissions964 /// 965 /// * Collection Owner.966 /// * Collection Admin.967 /// * Anyone if968 /// * White List is enabled, and969 /// * Address is added to white list, and970 /// * MintPermission is enabled (see SetMintPermission method)971 /// 972 /// # Arguments973 /// 974 /// * collection_id: ID of the collection.975 /// 976 /// * itemsData: Array items properties. Each property is an array of bytes itself, see [create_item].977 /// 978 /// * owner: Address, initial owner of the NFT.979 #[weight = <T as Config>::WeightInfo::create_item(items_data.into_iter()980 .map(|data| { data.len() })981 .sum())]982 pub fn create_multiple_items(origin, collection_id: CollectionId, owner: T::AccountId, items_data: Vec<CreateItemData>) -> DispatchResult {983984 ensure!(items_data.len() > 0, Error::<T>::EmptyArgument);985 let sender = ensure_signed(origin)?;986987 Self::collection_exists(collection_id)?;988 let target_collection = <Collection<T>>::get(collection_id);989990 Self::can_create_items_in_collection(collection_id, &target_collection, &sender, &owner)?;991992 for data in &items_data {993 Self::validate_create_item_args(&target_collection, data)?;994 }995 for data in &items_data {996 Self::create_item_no_validation(collection_id, owner.clone(), data.clone())?;997 }998999 Ok(())1000 }10011002 /// Destroys a concrete instance of NFT.1003 /// 1004 /// # Permissions1005 /// 1006 /// * Collection Owner.1007 /// * Collection Admin.1008 /// * Current NFT Owner.1009 /// 1010 /// # Arguments1011 /// 1012 /// * collection_id: ID of the collection.1013 /// 1014 /// * item_id: ID of NFT to burn.1015 #[weight = <T as Config>::WeightInfo::burn_item()]1016 pub fn burn_item(origin, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {10171018 let sender = ensure_signed(origin)?;1019 Self::collection_exists(collection_id)?;10201021 // Transfer permissions check1022 let target_collection = <Collection<T>>::get(collection_id);1023 ensure!(Self::is_item_owner(sender.clone(), collection_id, item_id) ||1024 Self::is_owner_or_admin_permissions(collection_id, sender.clone()),1025 Error::<T>::NoPermission);10261027 if target_collection.access == AccessMode::WhiteList {1028 Self::check_white_list(collection_id, &sender)?;1029 }10301031 match target_collection.mode1032 {1033 CollectionMode::NFT => Self::burn_nft_item(collection_id, item_id)?,1034 CollectionMode::Fungible(_) => Self::burn_fungible_item(&sender, collection_id, value)?,1035 CollectionMode::ReFungible => Self::burn_refungible_item(collection_id, item_id, &sender)?,1036 _ => ()1037 };10381039 // call event1040 Self::deposit_event(RawEvent::ItemDestroyed(collection_id, item_id));10411042 Ok(())1043 }10441045 /// Change ownership of the token.1046 /// 1047 /// # Permissions1048 /// 1049 /// * Collection Owner1050 /// * Collection Admin1051 /// * Current NFT owner1052 ///1053 /// # Arguments1054 /// 1055 /// * recipient: Address of token recipient.1056 /// 1057 /// * collection_id.1058 /// 1059 /// * item_id: ID of the item1060 /// * Non-Fungible Mode: Required.1061 /// * Fungible Mode: Ignored.1062 /// * Re-Fungible Mode: Required.1063 /// 1064 /// * value: Amount to transfer.1065 /// * Non-Fungible Mode: Ignored1066 /// * Fungible Mode: Must specify transferred amount1067 /// * Re-Fungible Mode: Must specify transferred portion (between 0 and 1)1068 #[weight = <T as Config>::WeightInfo::transfer()]1069 pub fn transfer(origin, recipient: T::AccountId, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {1070 let sender = ensure_signed(origin)?;1071 Self::transfer_internal(sender, recipient, collection_id, item_id, value)1072 }10731074 /// Set, change, or remove approved address to transfer the ownership of the NFT.1075 /// 1076 /// # Permissions1077 /// 1078 /// * Collection Owner1079 /// * Collection Admin1080 /// * Current NFT owner1081 /// 1082 /// # Arguments1083 /// 1084 /// * approved: Address that is approved to transfer this NFT or zero (if needed to remove approval).1085 /// 1086 /// * collection_id.1087 /// 1088 /// * item_id: ID of the item.1089 #[weight = <T as Config>::WeightInfo::approve()]1090 pub fn approve(origin, spender: T::AccountId, collection_id: CollectionId, item_id: TokenId, amount: u128) -> DispatchResult {10911092 let sender = ensure_signed(origin)?;10931094 Self::collection_exists(collection_id)?;1095 Self::token_exists(collection_id, item_id, &sender)?;10961097 // Transfer permissions check1098 let target_collection = <Collection<T>>::get(collection_id);1099 ensure!(Self::is_item_owner(sender.clone(), collection_id, item_id) ||1100 Self::is_owner_or_admin_permissions(collection_id, sender.clone()),1101 Error::<T>::NoPermission);11021103 if target_collection.access == AccessMode::WhiteList {1104 Self::check_white_list(collection_id, &sender)?;1105 Self::check_white_list(collection_id, &spender)?;1106 }11071108 let allowance_exists = <Allowances<T>>::contains_key(collection_id, (item_id, &sender, &spender));1109 let mut allowance: u128 = amount;1110 if allowance_exists {1111 allowance += <Allowances<T>>::get(collection_id, (item_id, &sender, &spender));1112 }1113 <Allowances<T>>::insert(collection_id, (item_id, sender.clone(), spender.clone()), allowance);11141115 Ok(())1116 }1117 1118 /// Change ownership of a NFT on behalf of the owner. See Approve method for additional information. After this method executes, the approval is removed so that the approved address will not be able to transfer this NFT again from this owner.1119 /// 1120 /// # Permissions1121 /// * Collection Owner1122 /// * Collection Admin1123 /// * Current NFT owner1124 /// * Address approved by current NFT owner1125 /// 1126 /// # Arguments1127 /// 1128 /// * from: Address that owns token.1129 /// 1130 /// * recipient: Address of token recipient.1131 /// 1132 /// * collection_id.1133 /// 1134 /// * item_id: ID of the item.1135 /// 1136 /// * value: Amount to transfer.1137 #[weight = <T as Config>::WeightInfo::transfer_from()]1138 pub fn transfer_from(origin, from: T::AccountId, recipient: T::AccountId, collection_id: CollectionId, item_id: TokenId, value: u128 ) -> DispatchResult {11391140 let sender = ensure_signed(origin)?;1141 let mut appoved_transfer = false;11421143 // Check approval1144 let mut approval: u128 = 0;1145 if <Allowances<T>>::contains_key(collection_id, (item_id, &from, &sender)) {1146 approval = <Allowances<T>>::get(collection_id, (item_id, &from, &sender));1147 ensure!(approval >= value, Error::<T>::TokenValueNotEnough);1148 appoved_transfer = true;1149 }11501151 let target_collection = <Collection<T>>::get(collection_id);11521153 // Limits check1154 Self::is_correct_transfer(collection_id, &target_collection, &recipient)?;11551156 // Transfer permissions check 1157 ensure!(appoved_transfer || Self::is_owner_or_admin_permissions(collection_id, sender.clone()),1158 Error::<T>::NoPermission);11591160 if target_collection.access == AccessMode::WhiteList {1161 Self::check_white_list(collection_id, &sender)?;1162 Self::check_white_list(collection_id, &recipient)?;1163 }11641165 // Reduce approval by transferred amount or remove if remaining approval drops to 01166 if approval.checked_sub(value).unwrap_or(0) > 0 {1167 <Allowances<T>>::insert(collection_id, (item_id, &from, &sender), approval - value);1168 }1169 else {1170 <Allowances<T>>::remove(collection_id, (item_id, &from, &sender));1171 }11721173 match target_collection.mode1174 {1175 CollectionMode::NFT => Self::transfer_nft(collection_id, item_id, from, recipient)?,1176 CollectionMode::Fungible(_) => Self::transfer_fungible(collection_id, value, &from, &recipient)?,1177 CollectionMode::ReFungible => Self::transfer_refungible(collection_id, item_id, value, from.clone(), recipient)?,1178 _ => ()1179 };11801181 Ok(())1182 }11831184 // #[weight = 0]1185 // pub fn safe_transfer_from(origin, collection_id: CollectionId, item_id: TokenId, new_owner: T::AccountId) -> DispatchResult {11861187 // // let no_perm_mes = "You do not have permissions to modify this collection";1188 // // ensure!(<ApprovedList<T>>::contains_key((collection_id, item_id)), no_perm_mes);1189 // // let list_itm = <ApprovedList<T>>::get((collection_id, item_id));1190 // // ensure!(list_itm.contains(&new_owner.clone()), no_perm_mes);11911192 // // // on_nft_received call11931194 // // Self::transfer(origin, collection_id, item_id, new_owner)?;11951196 // Ok(())1197 // }11981199 /// Set off-chain data schema.1200 /// 1201 /// # Permissions1202 /// 1203 /// * Collection Owner1204 /// * Collection Admin1205 /// 1206 /// # Arguments1207 /// 1208 /// * collection_id.1209 /// 1210 /// * schema: String representing the offchain data schema.1211 #[weight = <T as Config>::WeightInfo::set_variable_meta_data()]1212 pub fn set_variable_meta_data (1213 origin,1214 collection_id: CollectionId,1215 item_id: TokenId,1216 data: Vec<u8>1217 ) -> DispatchResult {1218 let sender = ensure_signed(origin)?;1219 1220 Self::collection_exists(collection_id)?;1221 Self::token_exists(collection_id, item_id, &sender)?;12221223 ensure!(ChainLimit::get().custom_data_limit >= data.len() as u32, Error::<T>::TokenVariableDataLimitExceeded);12241225 // Modify permissions check1226 let target_collection = <Collection<T>>::get(collection_id);1227 ensure!(Self::is_item_owner(sender.clone(), collection_id, item_id) ||1228 Self::is_owner_or_admin_permissions(collection_id, sender.clone()),1229 Error::<T>::NoPermission);12301231 match target_collection.mode1232 {1233 CollectionMode::NFT => Self::set_nft_variable_data(collection_id, item_id, data)?,1234 CollectionMode::ReFungible => Self::set_re_fungible_variable_data(collection_id, item_id, data)?,1235 CollectionMode::Fungible(_) => fail!(Error::<T>::CantStoreMetadataInFungibleTokens),1236 _ => fail!(Error::<T>::UnexpectedCollectionType)1237 };12381239 Ok(())1240 }1241 1242 /// Set schema standard1243 /// ImageURL1244 /// Unique1245 /// 1246 /// # Permissions1247 /// 1248 /// * Collection Owner1249 /// * Collection Admin1250 /// 1251 /// # Arguments1252 /// 1253 /// * collection_id.1254 /// 1255 /// * schema: SchemaVersion: enum1256 #[weight = <T as Config>::WeightInfo::set_schema_version()]1257 pub fn set_schema_version(1258 origin,1259 collection_id: CollectionId,1260 version: SchemaVersion1261 ) -> DispatchResult {1262 let sender = ensure_signed(origin)?;1263 Self::check_owner_or_admin_permissions(collection_id, sender.clone())?;1264 let mut target_collection = <Collection<T>>::get(collection_id);1265 target_collection.schema_version = version;1266 <Collection<T>>::insert(collection_id, target_collection);12671268 Ok(())1269 }12701271 /// Set off-chain data schema.1272 /// 1273 /// # Permissions1274 /// 1275 /// * Collection Owner1276 /// * Collection Admin1277 /// 1278 /// # Arguments1279 /// 1280 /// * collection_id.1281 /// 1282 /// * schema: String representing the offchain data schema.1283 #[weight = <T as Config>::WeightInfo::set_offchain_schema()]1284 pub fn set_offchain_schema(1285 origin,1286 collection_id: CollectionId,1287 schema: Vec<u8>1288 ) -> DispatchResult {1289 let sender = ensure_signed(origin)?;1290 Self::check_owner_or_admin_permissions(collection_id, sender.clone())?;12911292 // check schema limit1293 ensure!(schema.len() as u32 <= ChainLimit::get().offchain_schema_limit, "");12941295 let mut target_collection = <Collection<T>>::get(collection_id);1296 target_collection.offchain_schema = schema;1297 <Collection<T>>::insert(collection_id, target_collection);12981299 Ok(())1300 }13011302 /// Set const on-chain data schema.1303 /// 1304 /// # Permissions1305 /// 1306 /// * Collection Owner1307 /// * Collection Admin1308 /// 1309 /// # Arguments1310 /// 1311 /// * collection_id.1312 /// 1313 /// * schema: String representing the const on-chain data schema.1314 #[weight = <T as Config>::WeightInfo::set_const_on_chain_schema()]1315 pub fn set_const_on_chain_schema (1316 origin,1317 collection_id: CollectionId,1318 schema: Vec<u8>1319 ) -> DispatchResult {1320 let sender = ensure_signed(origin)?;1321 Self::check_owner_or_admin_permissions(collection_id, sender.clone())?;13221323 // check schema limit1324 ensure!(schema.len() as u32 <= ChainLimit::get().const_on_chain_schema_limit, "");13251326 let mut target_collection = <Collection<T>>::get(collection_id);1327 target_collection.const_on_chain_schema = schema;1328 <Collection<T>>::insert(collection_id, target_collection);13291330 Ok(())1331 }13321333 /// Set variable on-chain data schema.1334 /// 1335 /// # Permissions1336 /// 1337 /// * Collection Owner1338 /// * Collection Admin1339 /// 1340 /// # Arguments1341 /// 1342 /// * collection_id.1343 /// 1344 /// * schema: String representing the variable on-chain data schema.1345 #[weight = <T as Config>::WeightInfo::set_const_on_chain_schema()]1346 pub fn set_variable_on_chain_schema (1347 origin,1348 collection_id: CollectionId,1349 schema: Vec<u8>1350 ) -> DispatchResult {1351 let sender = ensure_signed(origin)?;1352 Self::check_owner_or_admin_permissions(collection_id, sender.clone())?;13531354 // check schema limit1355 ensure!(schema.len() as u32 <= ChainLimit::get().variable_on_chain_schema_limit, "");13561357 let mut target_collection = <Collection<T>>::get(collection_id);1358 target_collection.variable_on_chain_schema = schema;1359 <Collection<T>>::insert(collection_id, target_collection);13601361 Ok(())1362 }13631364 // Sudo permissions function1365 #[weight = <T as Config>::WeightInfo::set_chain_limits()]1366 pub fn set_chain_limits(1367 origin,1368 limits: ChainLimits1369 ) -> DispatchResult {13701371 #[cfg(not(feature = "runtime-benchmarks"))]1372 ensure_root(origin)?;13731374 <ChainLimit>::put(limits);1375 Ok(())1376 }13771378 /// Enable smart contract self-sponsoring.1379 /// 1380 /// # Permissions1381 /// 1382 /// * Contract Owner1383 /// 1384 /// # Arguments1385 /// 1386 /// * contract address1387 /// * enable flag1388 /// 1389 #[weight = <T as Config>::WeightInfo::enable_contract_sponsoring()]1390 pub fn enable_contract_sponsoring(1391 origin,1392 contract_address: T::AccountId,1393 enable: bool1394 ) -> DispatchResult {13951396 let sender = ensure_signed(origin)?;13971398 #[cfg(feature = "runtime-benchmarks")]1399 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());14001401 Self::ensure_contract_owned(sender, &contract_address)?;14021403 <ContractSelfSponsoring<T>>::insert(contract_address, enable);1404 Ok(())1405 }14061407 /// Set the rate limit for contract sponsoring to specified number of blocks.1408 /// 1409 /// If not set (has the default value of 0 blocks), the sponsoring will be disabled. 1410 /// If set to the number B (for blocks), the transactions will be sponsored with a rate 1411 /// limit of B, i.e. fees for every transaction sent to this smart contract will be paid 1412 /// from contract endowment if there are at least B blocks between such transactions. 1413 /// Nonetheless, if transactions are sent more frequently, the fees are paid by the sender.1414 /// 1415 /// # Permissions1416 /// 1417 /// * Contract Owner1418 /// 1419 /// # Arguments1420 /// 1421 /// -`contract_address`: Address of the contract to sponsor1422 /// -`rate_limit`: Number of blocks to wait until the next sponsored transaction is allowed1423 /// 1424 #[weight = <T as Config>::WeightInfo::set_contract_sponsoring_rate_limit()]1425 pub fn set_contract_sponsoring_rate_limit(1426 origin,1427 contract_address: T::AccountId,1428 rate_limit: T::BlockNumber1429 ) -> DispatchResult {1430 let sender = ensure_signed(origin)?;14311432 #[cfg(feature = "runtime-benchmarks")]1433 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());14341435 Self::ensure_contract_owned(sender, &contract_address)?;1436 <ContractSponsoringRateLimit<T>>::insert(contract_address, rate_limit);1437 Ok(())1438 }14391440 /// Enable the white list for a contract. Only addresses added to the white list with addToContractWhiteList will be able to call this smart contract.1441 /// 1442 /// # Permissions1443 /// 1444 /// * Address that deployed smart contract.1445 /// 1446 /// # Arguments1447 /// 1448 /// -`contract_address`: Address of the contract.1449 /// 1450 /// - `enable`: . 1451 #[weight = <T as Config>::WeightInfo::toggle_contract_white_list()]1452 pub fn toggle_contract_white_list(1453 origin,1454 contract_address: T::AccountId,1455 enable: bool1456 ) -> DispatchResult {1457 let sender = ensure_signed(origin)?;14581459 #[cfg(feature = "runtime-benchmarks")]1460 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());14611462 Self::ensure_contract_owned(sender, &contract_address)?;1463 <ContractWhiteListEnabled<T>>::insert(contract_address, enable);1464 Ok(())1465 }1466 1467 /// Add an address to smart contract white list.1468 /// 1469 /// # Permissions1470 /// 1471 /// * Address that deployed smart contract.1472 /// 1473 /// # Arguments1474 /// 1475 /// -`contract_address`: Address of the contract.1476 ///1477 /// -`account_address`: Address to add.1478 #[weight = <T as Config>::WeightInfo::add_to_contract_white_list()]1479 pub fn add_to_contract_white_list(1480 origin,1481 contract_address: T::AccountId,1482 account_address: T::AccountId1483 ) -> DispatchResult {1484 let sender = ensure_signed(origin)?;14851486 #[cfg(feature = "runtime-benchmarks")]1487 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());1488 1489 Self::ensure_contract_owned(sender, &contract_address)?; 1490 <ContractWhiteList<T>>::insert(contract_address, account_address, true);1491 Ok(())1492 }14931494 /// Remove an address from smart contract white list.1495 /// 1496 /// # Permissions1497 /// 1498 /// * Address that deployed smart contract.1499 /// 1500 /// # Arguments1501 /// 1502 /// -`contract_address`: Address of the contract.1503 ///1504 /// -`account_address`: Address to remove.1505 #[weight = <T as Config>::WeightInfo::remove_from_contract_white_list()]1506 pub fn remove_from_contract_white_list(1507 origin,1508 contract_address: T::AccountId,1509 account_address: T::AccountId1510 ) -> DispatchResult {1511 let sender = ensure_signed(origin)?;15121513 #[cfg(feature = "runtime-benchmarks")]1514 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());15151516 Self::ensure_contract_owned(sender, &contract_address)?;1517 <ContractWhiteList<T>>::remove(contract_address, account_address);1518 Ok(())1519 }15201521 #[weight = <T as Config>::WeightInfo::set_collection_limits()]1522 pub fn set_collection_limits(1523 origin,1524 collection_id: u32,1525 limits: CollectionLimits,1526 ) -> DispatchResult {1527 let sender = ensure_signed(origin)?;1528 Self::check_owner_permissions(collection_id, sender.clone())?;1529 let mut target_collection = <Collection<T>>::get(collection_id);1530 let chain_limits = ChainLimit::get();1531 let climits = target_collection.limits;15321533 // collection bounds1534 ensure!(limits.sponsor_transfer_timeout <= MAX_SPONSOR_TIMEOUT &&1535 limits.account_token_ownership_limit <= MAX_TOKEN_OWNERSHIP, 1536 Error::<T>::CollectionLimitBoundsExceeded);15371538 // token_limit check prev1539 ensure!(climits.token_limit > limits.token_limit && 1540 limits.token_limit <= chain_limits.account_token_ownership_limit, 1541 Error::<T>::AccountTokenLimitExceeded);15421543 target_collection.limits = limits;1544 <Collection<T>>::insert(collection_id, target_collection);15451546 Ok(())1547 } 1548 }1549}15501551impl<T: Config> Module<T> {15521553 pub fn transfer_internal(sender: T::AccountId, recipient: T::AccountId, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {15541555 let target_collection = <Collection<T>>::get(collection_id);15561557 // Limits check1558 Self::is_correct_transfer(collection_id, &target_collection, &recipient)?;15591560 // Transfer permissions check1561 ensure!(Self::is_item_owner(sender.clone(), collection_id, item_id) ||1562 Self::is_owner_or_admin_permissions(collection_id, sender.clone()),1563 Error::<T>::NoPermission);15641565 if target_collection.access == AccessMode::WhiteList {1566 Self::check_white_list(collection_id, &sender)?;1567 Self::check_white_list(collection_id, &recipient)?;1568 }15691570 match target_collection.mode1571 {1572 CollectionMode::NFT => Self::transfer_nft(collection_id, item_id, sender.clone(), recipient.clone())?,1573 CollectionMode::Fungible(_) => Self::transfer_fungible(collection_id, value, &sender, &recipient)?,1574 CollectionMode::ReFungible => Self::transfer_refungible(collection_id, item_id, value, sender.clone(), recipient.clone())?,1575 _ => ()1576 };15771578 Self::deposit_event(RawEvent::Transfer(collection_id, item_id, sender, recipient, value));15791580 Ok(())1581 }158215831584 fn is_correct_transfer(collection_id: CollectionId, collection: &CollectionType<T::AccountId>, recipient: &T::AccountId) -> DispatchResult {15851586 // check token limit and account token limit1587 let account_items: u32 = <AddressTokens<T>>::get(collection_id, recipient).len() as u32;1588 ensure!(collection.limits.account_token_ownership_limit > account_items, Error::<T>::AccountTokenLimitExceeded);1589 1590 Ok(())1591 }15921593 fn can_create_items_in_collection(collection_id: CollectionId, collection: &CollectionType<T::AccountId>, sender: &T::AccountId, owner: &T::AccountId) -> DispatchResult {15941595 // check token limit and account token limit1596 let total_items: u32 = ItemListIndex::get(collection_id);1597 let account_items: u32 = <AddressTokens<T>>::get(collection_id, owner).len() as u32;1598 ensure!(collection.limits.token_limit > total_items, Error::<T>::CollectionTokenLimitExceeded);1599 ensure!(collection.limits.account_token_ownership_limit > account_items, Error::<T>::AccountTokenLimitExceeded);16001601 if !Self::is_owner_or_admin_permissions(collection_id, sender.clone()) {1602 ensure!(collection.mint_mode == true, Error::<T>::PublicMintingNotAllowed);1603 Self::check_white_list(collection_id, owner)?;1604 Self::check_white_list(collection_id, sender)?;1605 }16061607 Ok(())1608 }16091610 fn validate_create_item_args(target_collection: &CollectionType<T::AccountId>, data: &CreateItemData) -> DispatchResult {1611 match target_collection.mode1612 {1613 CollectionMode::NFT => {1614 if let CreateItemData::NFT(data) = data {1615 // check sizes1616 ensure!(ChainLimit::get().custom_data_limit >= data.const_data.len() as u32, Error::<T>::TokenConstDataLimitExceeded);1617 ensure!(ChainLimit::get().custom_data_limit >= data.variable_data.len() as u32, Error::<T>::TokenVariableDataLimitExceeded);1618 } else {1619 fail!(Error::<T>::NotNftDataUsedToMintNftCollectionToken);1620 }1621 },1622 CollectionMode::Fungible(_) => {1623 if let CreateItemData::Fungible(_) = data {1624 } else {1625 fail!(Error::<T>::NotFungibleDataUsedToMintFungibleCollectionToken);1626 }1627 },1628 CollectionMode::ReFungible => {1629 if let CreateItemData::ReFungible(data) = data {16301631 // check sizes1632 ensure!(ChainLimit::get().custom_data_limit >= data.const_data.len() as u32, Error::<T>::TokenConstDataLimitExceeded);1633 ensure!(ChainLimit::get().custom_data_limit >= data.variable_data.len() as u32, Error::<T>::TokenVariableDataLimitExceeded);16341635 // Check refungibility limits1636 ensure!(data.pieces <= MAX_REFUNGIBLE_PIECES, Error::<T>::WrongRefungiblePieces);1637 ensure!(data.pieces > 0, Error::<T>::WrongRefungiblePieces);1638 } else {1639 fail!(Error::<T>::NotReFungibleDataUsedToMintReFungibleCollectionToken);1640 }1641 },1642 _ => { fail!(Error::<T>::UnexpectedCollectionType); }1643 };16441645 Ok(())1646 }16471648 fn create_item_no_validation(collection_id: CollectionId, owner: T::AccountId, data: CreateItemData) -> DispatchResult {1649 match data1650 {1651 CreateItemData::NFT(data) => {1652 let item = NftItemType {1653 owner,1654 const_data: data.const_data,1655 variable_data: data.variable_data1656 };16571658 Self::add_nft_item(collection_id, item)?;1659 },1660 CreateItemData::Fungible(data) => {1661 Self::add_fungible_item(collection_id, &owner, data.value)?;1662 },1663 CreateItemData::ReFungible(data) => {1664 let mut owner_list = Vec::new();1665 owner_list.push(Ownership {owner: owner.clone(), fraction: data.pieces});16661667 let item = ReFungibleItemType {1668 owner: owner_list,1669 const_data: data.const_data,1670 variable_data: data.variable_data1671 };16721673 Self::add_refungible_item(collection_id, item)?;1674 }1675 };16761677 // call event1678 Self::deposit_event(RawEvent::ItemCreated(collection_id, <ItemListIndex>::get(collection_id)));16791680 Ok(())1681 }16821683 fn add_fungible_item(collection_id: CollectionId, owner: &T::AccountId, value: u128) -> DispatchResult {16841685 // Does new owner already have an account?1686 let mut balance: u128 = 0;1687 if <FungibleItemList<T>>::contains_key(collection_id, owner) {1688 balance = <FungibleItemList<T>>::get(collection_id, owner).value;1689 } 16901691 // Mint 1692 let item = FungibleItemType {1693 value: balance + value1694 };1695 <FungibleItemList<T>>::insert(collection_id, (*owner).clone(), item);16961697 // Update balance1698 let new_balance = <Balance<T>>::get(collection_id, owner)1699 .checked_add(value)1700 .ok_or(Error::<T>::NumOverflow)?;1701 <Balance<T>>::insert(collection_id, (*owner).clone(), new_balance);17021703 Ok(())1704 }17051706 fn add_refungible_item(collection_id: CollectionId, item: ReFungibleItemType<T::AccountId>) -> DispatchResult {1707 let current_index = <ItemListIndex>::get(collection_id)1708 .checked_add(1)1709 .ok_or(Error::<T>::NumOverflow)?;1710 let itemcopy = item.clone();17111712 let value = item.owner.first().unwrap().fraction;1713 let owner = item.owner.first().unwrap().owner.clone();17141715 Self::add_token_index(collection_id, current_index, &owner)?;17161717 <ItemListIndex>::insert(collection_id, current_index);1718 <ReFungibleItemList<T>>::insert(collection_id, current_index, itemcopy);17191720 // Update balance1721 let new_balance = <Balance<T>>::get(collection_id, &owner)1722 .checked_add(value)1723 .ok_or(Error::<T>::NumOverflow)?;1724 <Balance<T>>::insert(collection_id, owner.clone(), new_balance);17251726 Ok(())1727 }17281729 fn add_nft_item(collection_id: CollectionId, item: NftItemType<T::AccountId>) -> DispatchResult {1730 let current_index = <ItemListIndex>::get(collection_id)1731 .checked_add(1)1732 .ok_or(Error::<T>::NumOverflow)?;17331734 let item_owner = item.owner.clone();1735 Self::add_token_index(collection_id, current_index, &item.owner)?;17361737 <ItemListIndex>::insert(collection_id, current_index);1738 <NftItemList<T>>::insert(collection_id, current_index, item);17391740 // Update balance1741 let new_balance = <Balance<T>>::get(collection_id, item_owner.clone())1742 .checked_add(1)1743 .ok_or(Error::<T>::NumOverflow)?;1744 <Balance<T>>::insert(collection_id, item_owner.clone(), new_balance);17451746 Ok(())1747 }17481749 fn burn_refungible_item(1750 collection_id: CollectionId,1751 item_id: TokenId,1752 owner: &T::AccountId,1753 ) -> DispatchResult {1754 ensure!(1755 <ReFungibleItemList<T>>::contains_key(collection_id, item_id),1756 Error::<T>::TokenNotFound1757 );1758 let mut token = <ReFungibleItemList<T>>::get(collection_id, item_id);1759 let rft_balance = token1760 .owner1761 .iter()1762 .filter(|&i| i.owner == *owner)1763 .next()1764 .unwrap();1765 Self::remove_token_index(collection_id, item_id, owner)?;17661767 // update balance1768 let new_balance = <Balance<T>>::get(collection_id, rft_balance.owner.clone())1769 .checked_sub(rft_balance.fraction)1770 .ok_or(Error::<T>::NumOverflow)?;1771 <Balance<T>>::insert(collection_id, rft_balance.owner.clone(), new_balance);17721773 // Re-create owners list with sender removed1774 let index = token1775 .owner1776 .iter()1777 .position(|i| i.owner == *owner)1778 .unwrap();1779 token.owner.remove(index);1780 let owner_count = token.owner.len();17811782 // Burn the token completely if this was the last (only) owner1783 if owner_count == 0 {1784 <ReFungibleItemList<T>>::remove(collection_id, item_id);1785 }1786 else {1787 <ReFungibleItemList<T>>::insert(collection_id, item_id, token);1788 }17891790 Ok(())1791 }17921793 fn burn_nft_item(collection_id: CollectionId, item_id: TokenId) -> DispatchResult {1794 ensure!(1795 <NftItemList<T>>::contains_key(collection_id, item_id),1796 Error::<T>::TokenNotFound1797 );1798 let item = <NftItemList<T>>::get(collection_id, item_id);1799 Self::remove_token_index(collection_id, item_id, &item.owner)?;18001801 // update balance1802 let new_balance = <Balance<T>>::get(collection_id, &item.owner)1803 .checked_sub(1)1804 .ok_or(Error::<T>::NumOverflow)?;1805 <Balance<T>>::insert(collection_id, item.owner.clone(), new_balance);1806 <NftItemList<T>>::remove(collection_id, item_id);18071808 Ok(())1809 }18101811 fn burn_fungible_item(owner: &T::AccountId, collection_id: CollectionId, value: u128) -> DispatchResult {1812 ensure!(1813 <FungibleItemList<T>>::contains_key(collection_id, owner),1814 Error::<T>::TokenNotFound1815 );1816 let mut balance = <FungibleItemList<T>>::get(collection_id, owner);1817 ensure!(balance.value >= value, Error::<T>::TokenValueNotEnough);18181819 // update balance1820 let new_balance = <Balance<T>>::get(collection_id, owner)1821 .checked_sub(value)1822 .ok_or(Error::<T>::NumOverflow)?;1823 <Balance<T>>::insert(collection_id, (*owner).clone(), new_balance);18241825 if balance.value - value > 0 {1826 balance.value -= value;1827 <FungibleItemList<T>>::insert(collection_id, (*owner).clone(), balance);1828 }1829 else {1830 <FungibleItemList<T>>::remove(collection_id, owner);1831 }18321833 Ok(())1834 }18351836 fn collection_exists(collection_id: CollectionId) -> DispatchResult {1837 ensure!(1838 <Collection<T>>::contains_key(collection_id),1839 Error::<T>::CollectionNotFound1840 );1841 Ok(())1842 }18431844 fn check_owner_permissions(collection_id: CollectionId, subject: T::AccountId) -> DispatchResult {1845 Self::collection_exists(collection_id)?;18461847 let target_collection = <Collection<T>>::get(collection_id);1848 ensure!(1849 subject == target_collection.owner,1850 Error::<T>::NoPermission1851 );18521853 Ok(())1854 }18551856 fn is_owner_or_admin_permissions(collection_id: CollectionId, subject: T::AccountId) -> bool {1857 let target_collection = <Collection<T>>::get(collection_id);1858 let mut result: bool = subject == target_collection.owner;1859 let exists = <AdminList<T>>::contains_key(collection_id);18601861 if !result & exists {1862 if <AdminList<T>>::get(collection_id).contains(&subject) {1863 result = true1864 }1865 }18661867 result1868 }18691870 fn check_owner_or_admin_permissions(1871 collection_id: CollectionId,1872 subject: T::AccountId,1873 ) -> DispatchResult {1874 Self::collection_exists(collection_id)?;1875 let result = Self::is_owner_or_admin_permissions(collection_id, subject.clone());18761877 ensure!(1878 result,1879 Error::<T>::NoPermission1880 );1881 Ok(())1882 }18831884 fn is_item_owner(subject: T::AccountId, collection_id: CollectionId, item_id: TokenId) -> bool {1885 let target_collection = <Collection<T>>::get(collection_id);18861887 match target_collection.mode {1888 CollectionMode::NFT => {1889 <NftItemList<T>>::get(collection_id, item_id).owner == subject1890 }1891 CollectionMode::Fungible(_) => {1892 <FungibleItemList<T>>::contains_key(collection_id, &subject)1893 }1894 CollectionMode::ReFungible => {1895 <ReFungibleItemList<T>>::get(collection_id, item_id)1896 .owner1897 .iter()1898 .any(|i| i.owner == subject)1899 }1900 CollectionMode::Invalid => false,1901 }1902 }19031904 fn check_white_list(collection_id: CollectionId, address: &T::AccountId) -> DispatchResult {1905 let mes = Error::<T>::AddresNotInWhiteList;1906 ensure!(<WhiteList<T>>::contains_key(collection_id, address), mes);19071908 Ok(())1909 }19101911 /// Check if token exists. In case of Fungible, check if there is an entry for 1912 /// the owner in fungible balances double map1913 fn token_exists(1914 collection_id: CollectionId,1915 item_id: TokenId,1916 owner: &T::AccountId1917 ) -> DispatchResult {1918 let target_collection = <Collection<T>>::get(collection_id);1919 let exists = match target_collection.mode1920 {1921 CollectionMode::NFT => <NftItemList<T>>::contains_key(collection_id, item_id),1922 CollectionMode::Fungible(_) => <FungibleItemList<T>>::contains_key(collection_id, owner),1923 CollectionMode::ReFungible => <ReFungibleItemList<T>>::contains_key(collection_id, item_id),1924 _ => false1925 };19261927 ensure!(exists == true, Error::<T>::TokenNotFound);1928 Ok(())1929 }19301931 fn transfer_fungible(1932 collection_id: CollectionId,1933 value: u128,1934 owner: &T::AccountId,1935 recipient: &T::AccountId,1936 ) -> DispatchResult {1937 Self::token_exists(collection_id, 0, owner)?;19381939 let mut balance = <FungibleItemList<T>>::get(collection_id, owner);1940 ensure!(balance.value >= value, Error::<T>::TokenValueTooLow);19411942 // Send balance to recipient (updates balanceOf of recipient)1943 Self::add_fungible_item(collection_id, recipient, value)?;19441945 // update balanceOf of sender1946 <Balance<T>>::insert(collection_id, (*owner).clone(), balance.value - value);19471948 // Reduce or remove sender1949 if balance.value == value {1950 <FungibleItemList<T>>::remove(collection_id, owner);1951 }1952 else {1953 balance.value -= value;1954 <FungibleItemList<T>>::insert(collection_id, (*owner).clone(), balance);1955 }19561957 Ok(())1958 }19591960 fn transfer_refungible(1961 collection_id: CollectionId,1962 item_id: TokenId,1963 value: u128,1964 owner: T::AccountId,1965 new_owner: T::AccountId,1966 ) -> DispatchResult {1967 Self::token_exists(collection_id, item_id, &owner)?;19681969 let full_item = <ReFungibleItemList<T>>::get(collection_id, item_id);1970 let item = full_item1971 .owner1972 .iter()1973 .filter(|i| i.owner == owner)1974 .next()1975 .ok_or(Error::<T>::NumOverflow)?;1976 let amount = item.fraction;19771978 ensure!(amount >= value, Error::<T>::TokenValueTooLow);19791980 // update balance1981 let balance_old_owner = <Balance<T>>::get(collection_id, item.owner.clone())1982 .checked_sub(value)1983 .ok_or(Error::<T>::NumOverflow)?;1984 <Balance<T>>::insert(collection_id, item.owner.clone(), balance_old_owner);19851986 let balancenew_owner = <Balance<T>>::get(collection_id, new_owner.clone())1987 .checked_add(value)1988 .ok_or(Error::<T>::NumOverflow)?;1989 <Balance<T>>::insert(collection_id, new_owner.clone(), balancenew_owner);19901991 let old_owner = item.owner.clone();1992 let new_owner_has_account = full_item.owner.iter().any(|i| i.owner == new_owner);19931994 // transfer1995 if amount == value && !new_owner_has_account {1996 // change owner1997 // new owner do not have account1998 let mut new_full_item = full_item.clone();1999 new_full_item2000 .owner2001 .iter_mut()2002 .find(|i| i.owner == owner)2003 .unwrap()2004 .owner = new_owner.clone();2005 <ReFungibleItemList<T>>::insert(collection_id, item_id, new_full_item);20062007 // update index collection2008 Self::move_token_index(collection_id, item_id, &old_owner, &new_owner)?;2009 } else {2010 let mut new_full_item = full_item.clone();2011 new_full_item2012 .owner2013 .iter_mut()2014 .find(|i| i.owner == owner)2015 .unwrap()2016 .fraction -= value;20172018 // separate amount2019 if new_owner_has_account {2020 // new owner has account2021 new_full_item2022 .owner2023 .iter_mut()2024 .find(|i| i.owner == new_owner)2025 .unwrap()2026 .fraction += value;2027 } else {2028 // new owner do not have account2029 new_full_item.owner.push(Ownership {2030 owner: new_owner.clone(),2031 fraction: value,2032 });2033 Self::add_token_index(collection_id, item_id, &new_owner)?;2034 }20352036 <ReFungibleItemList<T>>::insert(collection_id, item_id, new_full_item);2037 }20382039 Ok(())2040 }20412042 fn transfer_nft(2043 collection_id: CollectionId,2044 item_id: TokenId,2045 sender: T::AccountId,2046 new_owner: T::AccountId,2047 ) -> DispatchResult {2048 Self::token_exists(collection_id, item_id, &sender)?;20492050 let mut item = <NftItemList<T>>::get(collection_id, item_id);20512052 ensure!(2053 sender == item.owner,2054 Error::<T>::MustBeTokenOwner2055 );20562057 // update balance2058 let balance_old_owner = <Balance<T>>::get(collection_id, item.owner.clone())2059 .checked_sub(1)2060 .ok_or(Error::<T>::NumOverflow)?;2061 <Balance<T>>::insert(collection_id, item.owner.clone(), balance_old_owner);20622063 let balancenew_owner = <Balance<T>>::get(collection_id, new_owner.clone())2064 .checked_add(1)2065 .ok_or(Error::<T>::NumOverflow)?;2066 <Balance<T>>::insert(collection_id, new_owner.clone(), balancenew_owner);20672068 // change owner2069 let old_owner = item.owner.clone();2070 item.owner = new_owner.clone();2071 <NftItemList<T>>::insert(collection_id, item_id, item);20722073 // update index collection2074 Self::move_token_index(collection_id, item_id, &old_owner, &new_owner)?;20752076 Ok(())2077 }2078 2079 fn set_re_fungible_variable_data(2080 collection_id: CollectionId,2081 item_id: TokenId,2082 data: Vec<u8>2083 ) -> DispatchResult {2084 let mut item = <ReFungibleItemList<T>>::get(collection_id, item_id);20852086 item.variable_data = data;20872088 <ReFungibleItemList<T>>::insert(collection_id, item_id, item);20892090 Ok(())2091 }20922093 fn set_nft_variable_data(2094 collection_id: CollectionId,2095 item_id: TokenId,2096 data: Vec<u8>2097 ) -> DispatchResult {2098 let mut item = <NftItemList<T>>::get(collection_id, item_id);2099 2100 item.variable_data = data;21012102 <NftItemList<T>>::insert(collection_id, item_id, item);2103 2104 Ok(())2105 }21062107 fn init_collection(item: &CollectionType<T::AccountId>) {2108 // check params2109 assert!(2110 item.decimal_points <= MAX_DECIMAL_POINTS,2111 "decimal_points parameter must be lower than MAX_DECIMAL_POINTS"2112 );2113 assert!(2114 item.name.len() <= 64,2115 "Collection name can not be longer than 63 char"2116 );2117 assert!(2118 item.name.len() <= 256,2119 "Collection description can not be longer than 255 char"2120 );2121 assert!(2122 item.token_prefix.len() <= 16,2123 "Token prefix can not be longer than 15 char"2124 );21252126 // Generate next collection ID2127 let next_id = CreatedCollectionCount::get()2128 .checked_add(1)2129 .unwrap();21302131 CreatedCollectionCount::put(next_id);2132 }21332134 fn init_nft_token(collection_id: CollectionId, item: &NftItemType<T::AccountId>) {2135 let current_index = <ItemListIndex>::get(collection_id)2136 .checked_add(1)2137 .unwrap();21382139 let item_owner = item.owner.clone();2140 Self::add_token_index(collection_id, current_index, &item.owner).unwrap();21412142 <ItemListIndex>::insert(collection_id, current_index);21432144 // Update balance2145 let new_balance = <Balance<T>>::get(collection_id, &item_owner)2146 .checked_add(1)2147 .unwrap();2148 <Balance<T>>::insert(collection_id, item_owner.clone(), new_balance);2149 }21502151 fn init_fungible_token(collection_id: CollectionId, owner: &T::AccountId, item: &FungibleItemType) {2152 let current_index = <ItemListIndex>::get(collection_id)2153 .checked_add(1)2154 .unwrap();21552156 Self::add_token_index(collection_id, current_index, owner).unwrap();21572158 <ItemListIndex>::insert(collection_id, current_index);21592160 // Update balance2161 let new_balance = <Balance<T>>::get(collection_id, owner)2162 .checked_add(item.value)2163 .unwrap();2164 <Balance<T>>::insert(collection_id, (*owner).clone(), new_balance);2165 }21662167 fn init_refungible_token(collection_id: CollectionId, item: &ReFungibleItemType<T::AccountId>) {2168 let current_index = <ItemListIndex>::get(collection_id)2169 .checked_add(1)2170 .unwrap();21712172 let value = item.owner.first().unwrap().fraction;2173 let owner = item.owner.first().unwrap().owner.clone();21742175 Self::add_token_index(collection_id, current_index, &owner).unwrap();21762177 <ItemListIndex>::insert(collection_id, current_index);21782179 // Update balance2180 let new_balance = <Balance<T>>::get(collection_id, &owner)2181 .checked_add(value)2182 .unwrap();2183 <Balance<T>>::insert(collection_id, owner.clone(), new_balance);2184 }21852186 fn add_token_index(collection_id: CollectionId, item_index: TokenId, owner: &T::AccountId) -> DispatchResult {21872188 // add to account limit2189 if <AccountItemCount<T>>::contains_key(owner) {21902191 // bound Owned tokens by a single address2192 let count = <AccountItemCount<T>>::get(owner);2193 ensure!(count < ChainLimit::get().account_token_ownership_limit, Error::<T>::AddressOwnershipLimitExceeded);21942195 <AccountItemCount<T>>::insert(owner.clone(), count2196 .checked_add(1)2197 .ok_or(Error::<T>::NumOverflow)?);2198 }2199 else {2200 <AccountItemCount<T>>::insert(owner.clone(), 1);2201 }22022203 let list_exists = <AddressTokens<T>>::contains_key(collection_id, owner);2204 if list_exists {2205 let mut list = <AddressTokens<T>>::get(collection_id, owner);2206 let item_contains = list.contains(&item_index.clone());22072208 if !item_contains {2209 list.push(item_index.clone());2210 }22112212 <AddressTokens<T>>::insert(collection_id, owner.clone(), list);2213 } else {2214 let mut itm = Vec::new();2215 itm.push(item_index.clone());2216 <AddressTokens<T>>::insert(collection_id, owner.clone(), itm);2217 }22182219 Ok(())2220 }22212222 fn remove_token_index(2223 collection_id: CollectionId,2224 item_index: TokenId,2225 owner: &T::AccountId,2226 ) -> DispatchResult {22272228 // update counter2229 <AccountItemCount<T>>::insert(owner.clone(), 2230 <AccountItemCount<T>>::get(owner)2231 .checked_sub(1)2232 .ok_or(Error::<T>::NumOverflow)?);223322342235 let list_exists = <AddressTokens<T>>::contains_key(collection_id, owner);2236 if list_exists {2237 let mut list = <AddressTokens<T>>::get(collection_id, owner);2238 let item_contains = list.contains(&item_index.clone());22392240 if item_contains {2241 list.retain(|&item| item != item_index);2242 <AddressTokens<T>>::insert(collection_id, owner.clone(), list);2243 }2244 }22452246 Ok(())2247 }22482249 fn move_token_index(2250 collection_id: CollectionId,2251 item_index: TokenId,2252 old_owner: &T::AccountId,2253 new_owner: &T::AccountId,2254 ) -> DispatchResult {2255 Self::remove_token_index(collection_id, item_index, old_owner)?;2256 Self::add_token_index(collection_id, item_index, new_owner)?;22572258 Ok(())2259 }2260 2261 fn ensure_contract_owned(account: T::AccountId, contract: &T::AccountId) -> DispatchResult {2262 if <ContractOwner<T>>::contains_key(contract.clone()) {2263 let owner = <ContractOwner<T>>::get(contract);2264 ensure!(account == owner, Error::<T>::NoPermission);2265 } else {2266 fail!(Error::<T>::NoPermission);2267 }22682269 Ok(())2270 }2271}22722273////////////////////////////////////////////////////////////////////////////////////////////////////2274// Economic models2275// #region22762277/// Fee multiplier.2278pub type Multiplier = FixedU128;22792280type BalanceOf<T> = <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::Balance;22812282/// Require the transactor pay for themselves and maybe include a tip to gain additional priority2283/// in the queue.2284#[derive(Encode, Decode, Clone, Eq, PartialEq)]2285pub struct ChargeTransactionPayment<T: Config>(#[codec(compact)] BalanceOf<T>);22862287impl<T: Config + Send + Sync> sp_std::fmt::Debug 2288 for ChargeTransactionPayment<T>2289{2290 #[cfg(feature = "std")]2291 fn fmt(&self, f: &mut sp_std::fmt::Formatter) -> sp_std::fmt::Result {2292 write!(f, "ChargeTransactionPayment<{:?}>", self.0)2293 }2294 #[cfg(not(feature = "std"))]2295 fn fmt(&self, _: &mut sp_std::fmt::Formatter) -> sp_std::fmt::Result {2296 Ok(())2297 }2298}22992300impl<T: Config> ChargeTransactionPayment<T>2301where2302 T::Call: Dispatchable<Info=DispatchInfo, PostInfo=PostDispatchInfo> + IsSubType<Call<T>> + IsSubType<pallet_contracts::Call<T>>,2303 BalanceOf<T>: Send + Sync + From<u64> + FixedPointOperand,2304 T::AccountId: AsRef<[u8]>,2305 T::AccountId: UncheckedFrom<T::Hash>,2306{2307 fn traditional_fee(2308 len: usize,2309 info: &DispatchInfoOf<T::Call>,2310 tip: BalanceOf<T>,2311 ) -> BalanceOf<T>2312 where2313 T::Call: Dispatchable<Info = DispatchInfo>,2314 {2315 <transaction_payment::Module<T>>::compute_fee(len as u32, info, tip)2316 }23172318 fn get_priority(len: usize, info: &DispatchInfoOf<T::Call>, final_fee: BalanceOf<T>) -> TransactionPriority {2319 let weight_saturation = T::BlockWeights::get().max_block / info.weight.max(1);2320 let max_block_length = *T::BlockLength::get().max.get(DispatchClass::Normal);2321 let len_saturation = max_block_length as u64 / (len as u64).max(1);2322 let coefficient: BalanceOf<T> = weight_saturation2323 .min(len_saturation)2324 .saturated_into::<BalanceOf<T>>();2325 final_fee2326 .saturating_mul(coefficient)2327 .saturated_into::<TransactionPriority>()2328 }23292330 fn withdraw_fee(2331 &self,2332 who: &T::AccountId,2333 call: &T::Call,2334 info: &DispatchInfoOf<T::Call>,2335 len: usize,2336 ) -> Result<2337 (2338 BalanceOf<T>,2339 <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::LiquidityInfo,2340 ),2341 TransactionValidityError,2342 > {2343 let tip = self.0;23442345 // Set fee based on call type. Creating collection costs 1 Unique.2346 // All other transactions have traditional fees so far2347 // let fee = match call.is_sub_type() {2348 // Some(Call::create_collection(..)) => <BalanceOf<T>>::from(1_000_000_000),2349 // _ => Self::traditional_fee(len, info, tip), // Flat fee model, use only for testing purposes2350 // // _ => <BalanceOf<T>>::from(100)2351 // };2352 let fee = Self::traditional_fee(len, info, tip);23532354 // Only mess with balances if fee is not zero.2355 if fee.is_zero() {2356 return <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::withdraw_fee(who, call, info, fee, tip)2357 .map(|i| (fee, i));2358 }23592360 // Determine who is paying transaction fee based on ecnomic model2361 // Parse call to extract collection ID and access collection sponsor2362 let mut sponsor: T::AccountId = match IsSubType::<Call<T>>::is_sub_type(call) {2363 Some(Call::create_item(collection_id, _owner, _properties)) => {23642365 // sponsor timeout2366 let block_number = <system::Module<T>>::block_number() as T::BlockNumber;23672368 let limit = <Collection<T>>::get(collection_id).limits.sponsor_transfer_timeout;2369 let mut sponsored = true;2370 if <CreateItemBasket<T>>::contains_key((collection_id, &who)) {2371 let last_tx_block = <CreateItemBasket<T>>::get((collection_id, &who));2372 let limit_time = last_tx_block + limit.into();2373 if block_number <= limit_time {2374 sponsored = false;2375 }2376 }2377 if sponsored {2378 <CreateItemBasket<T>>::insert((collection_id, who.clone()), block_number);2379 }23802381 // check free create limit2382 if (<Collection<T>>::get(collection_id).limits.sponsored_data_size >= (_properties.len() as u32)) &&2383 (<Collection<T>>::get(collection_id).sponsor_confirmed) &&2384 (sponsored)2385 {2386 <Collection<T>>::get(collection_id).sponsor2387 } else {2388 T::AccountId::default()2389 }2390 }2391 Some(Call::transfer(_new_owner, collection_id, item_id, _value)) => {2392 2393 let mut sponsor_transfer = false;2394 if <Collection<T>>::get(collection_id).sponsor_confirmed {23952396 let collection_limits = <Collection<T>>::get(collection_id).limits;2397 let collection_mode = <Collection<T>>::get(collection_id).mode;2398 2399 // sponsor timeout2400 let block_number = <system::Module<T>>::block_number() as T::BlockNumber;2401 sponsor_transfer = match collection_mode {2402 CollectionMode::NFT => {2403 2404 // get correct limit2405 let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {2406 collection_limits.sponsor_transfer_timeout2407 } else {2408 ChainLimit::get().nft_sponsor_transfer_timeout2409 };2410 2411 let mut sponsored = true;2412 if <NftTransferBasket<T>>::contains_key(collection_id, item_id) {2413 let last_tx_block = <NftTransferBasket<T>>::get(collection_id, item_id);2414 let limit_time = last_tx_block + limit.into();2415 if block_number <= limit_time {2416 sponsored = false;2417 }2418 }2419 if sponsored {2420 <NftTransferBasket<T>>::insert(collection_id, item_id, block_number);2421 }24222423 sponsored2424 }2425 CollectionMode::Fungible(_) => {2426 2427 // get correct limit2428 let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {2429 collection_limits.sponsor_transfer_timeout2430 } else {2431 ChainLimit::get().fungible_sponsor_transfer_timeout2432 };2433 2434 let block_number = <system::Module<T>>::block_number() as T::BlockNumber;2435 let mut sponsored = true;2436 if <FungibleTransferBasket<T>>::contains_key(collection_id, who) {2437 let last_tx_block = <FungibleTransferBasket<T>>::get(collection_id, who);2438 let limit_time = last_tx_block + limit.into();2439 if block_number <= limit_time {2440 sponsored = false;2441 }2442 }2443 if sponsored {2444 <FungibleTransferBasket<T>>::insert(collection_id, who, block_number);2445 }24462447 sponsored2448 }2449 CollectionMode::ReFungible => {2450 2451 // get correct limit2452 let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {2453 collection_limits.sponsor_transfer_timeout2454 } else {2455 ChainLimit::get().refungible_sponsor_transfer_timeout2456 };2457 2458 let mut sponsored = true;2459 if <ReFungibleTransferBasket<T>>::contains_key(collection_id, item_id) {2460 let last_tx_block = <ReFungibleTransferBasket<T>>::get(collection_id, item_id);2461 let limit_time = last_tx_block + limit.into();2462 if block_number <= limit_time {2463 sponsored = false;2464 }2465 }2466 if sponsored {2467 <ReFungibleTransferBasket<T>>::insert(collection_id, item_id, block_number);2468 }24692470 sponsored2471 }2472 _ => {2473 false2474 },2475 };2476 }24772478 if !sponsor_transfer {2479 T::AccountId::default()2480 } else {2481 <Collection<T>>::get(collection_id).sponsor2482 }2483 }24842485 _ => T::AccountId::default(),2486 };24872488 // Sponsor smart contracts2489 sponsor = match IsSubType::<pallet_contracts::Call<T>>::is_sub_type(call) {24902491 // On instantiation: set the contract owner2492 Some(pallet_contracts::Call::instantiate(_endowment, _gas_limit, code_hash, _data, salt)) => {24932494 let new_contract_address = <pallet_contracts::Module<T>>::contract_address(2495 &who,2496 code_hash,2497 salt,2498 );2499 <ContractOwner<T>>::insert(new_contract_address.clone(), who.clone());25002501 T::AccountId::default()2502 },25032504 // When the contract is called, check if the sponsoring is enabled and pay fees from contract endowment if it is2505 Some(pallet_contracts::Call::call(dest, _value, _gas_limit, _data)) => {25062507 let called_contract: T::AccountId = T::Lookup::lookup((*dest).clone()).unwrap_or(T::AccountId::default());25082509 let owned_contract = <ContractOwner<T>>::contains_key(called_contract.clone())2510 && <ContractOwner<T>>::get(called_contract.clone()) == *who;2511 let white_list_enabled = <ContractWhiteListEnabled<T>>::contains_key(called_contract.clone()) && <ContractWhiteListEnabled<T>>::get(called_contract.clone());2512 2513 if !owned_contract && white_list_enabled {2514 if !<ContractWhiteList<T>>::contains_key(called_contract.clone(), who) {2515 return Err(InvalidTransaction::Call.into());2516 }2517 }25182519 let mut sponsor_transfer = false;2520 if <ContractSponsoringRateLimit<T>>::contains_key(called_contract.clone()) {2521 let last_tx_block = <ContractSponsorBasket<T>>::get((&called_contract, &who));2522 let block_number = <system::Module<T>>::block_number() as T::BlockNumber;2523 let rate_limit = <ContractSponsoringRateLimit<T>>::get(&called_contract);2524 let limit_time = last_tx_block + rate_limit;25252526 if block_number >= limit_time {2527 <ContractSponsorBasket<T>>::insert((called_contract.clone(), who.clone()), block_number);2528 sponsor_transfer = true;2529 }2530 } else {2531 sponsor_transfer = false;2532 }2533 2534 2535 let mut sp = T::AccountId::default();2536 if sponsor_transfer {2537 if <ContractSelfSponsoring<T>>::contains_key(called_contract.clone()) {2538 if <ContractSelfSponsoring<T>>::get(called_contract.clone()) {2539 sp = called_contract;2540 }2541 }2542 }25432544 sp2545 },25462547 _ => sponsor,2548 };25492550 let mut who_pays_fee: T::AccountId = sponsor.clone();2551 if sponsor == T::AccountId::default() {2552 who_pays_fee = who.clone();2553 }25542555 <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::withdraw_fee(&who_pays_fee, call, info, fee, tip)2556 .map(|i| (fee, i))2557 }2558}255925602561impl<T: Config + Send + Sync> SignedExtension2562 for ChargeTransactionPayment<T>2563where2564 BalanceOf<T>: Send + Sync + From<u64> + FixedPointOperand,2565 T::Call: Dispatchable<Info = DispatchInfo, PostInfo = PostDispatchInfo> + IsSubType<Call<T>> + IsSubType<pallet_contracts::Call<T>>,2566 T::AccountId: AsRef<[u8]>,2567 T::AccountId: UncheckedFrom<T::Hash>,2568{2569 const IDENTIFIER: &'static str = "ChargeTransactionPayment";2570 type AccountId = T::AccountId;2571 type Call = T::Call;2572 type AdditionalSigned = ();2573 type Pre = (2574 // tip2575 BalanceOf<T>,2576 // who pays fee2577 Self::AccountId,2578 // imbalance resulting from withdrawing the fee2579 <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::LiquidityInfo,2580 );2581 fn additional_signed(&self) -> sp_std::result::Result<(), TransactionValidityError> {2582 Ok(())2583 }25842585 fn validate(2586 &self,2587 who: &Self::AccountId,2588 call: &Self::Call,2589 info: &DispatchInfoOf<Self::Call>,2590 len: usize,2591 ) -> TransactionValidity {2592 let (fee, _) = self.withdraw_fee(who, call, info, len)?;2593 Ok(ValidTransaction {2594 priority: Self::get_priority(len, info, fee),2595 ..Default::default()2596 })2597 }25982599 fn pre_dispatch(2600 self,2601 who: &Self::AccountId,2602 call: &Self::Call,2603 info: &DispatchInfoOf<Self::Call>,2604 len: usize,2605 ) -> Result<Self::Pre, TransactionValidityError> {2606 let (_fee, imbalance) = self.withdraw_fee(who, call, info, len)?;2607 Ok((self.0, who.clone(), imbalance))2608 }26092610 fn post_dispatch(2611 pre: Self::Pre,2612 info: &DispatchInfoOf<Self::Call>,2613 post_info: &PostDispatchInfoOf<Self::Call>,2614 len: usize,2615 _result: &DispatchResult,2616 ) -> Result<(), TransactionValidityError> {2617 let (tip, who, imbalance) = pre;2618 let actual_fee = transaction_payment::Module::<T>::compute_actual_fee(2619 len as u32,2620 info,2621 post_info,2622 tip,2623 );2624 <T as transaction_payment::Config>::OnChargeTransaction::correct_and_deposit_fee(&who, info, post_info, actual_fee, tip, imbalance)?;2625 Ok(())2626 }2627}26282629// #endregion