difftreelog
feat limit allowance to owned amount
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 /// Owned amount is lesser than tried to approve352 CantAfford,353 /// No approve found354 ApproveNotFound,355 /// Requested value more than approved.356 TokenValueNotEnough,357 /// Only approved addresses can call this method.358 ApproveRequired,359 /// Address is not in white list.360 AddresNotInWhiteList,361 /// Number of collection admins bound exceeded.362 CollectionAdminsLimitExceeded,363 /// Owned tokens by a single address bound exceeded.364 AddressOwnershipLimitExceeded,365 /// Length of items properties must be greater than 0.366 EmptyArgument,367 /// const_data exceeded data limit.368 TokenConstDataLimitExceeded,369 /// variable_data exceeded data limit.370 TokenVariableDataLimitExceeded,371 /// Not NFT item data used to mint in NFT collection.372 NotNftDataUsedToMintNftCollectionToken,373 /// Not Fungible item data used to mint in Fungible collection.374 NotFungibleDataUsedToMintFungibleCollectionToken,375 /// Not Re Fungible item data used to mint in Re Fungible collection.376 NotReFungibleDataUsedToMintReFungibleCollectionToken,377 /// Unexpected collection type.378 UnexpectedCollectionType,379 /// Can't store metadata in fungible tokens.380 CantStoreMetadataInFungibleTokens,381 /// Collection token limit exceeded382 CollectionTokenLimitExceeded,383 /// Account token limit exceeded per collection384 AccountTokenLimitExceeded,385 /// Collection limit bounds per collection exceeded386 CollectionLimitBoundsExceeded,387 /// Schema data size limit bound exceeded388 SchemaDataLimitExceeded,389 /// Maximum refungibility exceeded390 WrongRefungiblePieces391 }392}393394pub trait Config: system::Config + Sized + transaction_payment::Config + pallet_contracts::Config {395 type Event: From<Event<Self>> + Into<<Self as system::Config>::Event>;396397 /// Weight information for extrinsics in this pallet.398 type WeightInfo: WeightInfo;399}400401#[cfg(feature = "runtime-benchmarks")]402mod benchmarking;403404// #endregion405406decl_storage! {407 trait Store for Module<T: Config> as Nft {408409 // Private members410 NextCollectionID: CollectionId;411 CreatedCollectionCount: u32;412 ChainVersion: u64;413 ItemListIndex: map hasher(identity) CollectionId => TokenId;414415 // Chain limits struct416 pub ChainLimit get(fn chain_limit) config(): ChainLimits;417418 // Bound counters419 CollectionCount: u32;420 pub AccountItemCount get(fn account_item_count): map hasher(twox_64_concat) T::AccountId => u32;421422 // Basic collections423 pub Collection get(fn collection) config(): map hasher(identity) CollectionId => CollectionType<T::AccountId>;424 pub AdminList get(fn admin_list_collection): map hasher(identity) CollectionId => Vec<T::AccountId>;425 pub WhiteList get(fn white_list): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => bool;426427 /// Balance owner per collection map428 pub Balance get(fn balance_count): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => u128;429430 /// second parameter: item id + owner account id + spender account id431 pub Allowances get(fn approved): double_map hasher(identity) CollectionId, hasher(twox_64_concat) (TokenId, T::AccountId, T::AccountId) => u128;432433 /// Item collections434 pub NftItemList get(fn nft_item_id) config(): double_map hasher(identity) CollectionId, hasher(identity) TokenId => NftItemType<T::AccountId>;435 pub FungibleItemList get(fn fungible_item_id) config(): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => FungibleItemType;436 pub ReFungibleItemList get(fn refungible_item_id) config(): double_map hasher(identity) CollectionId, hasher(identity) TokenId => ReFungibleItemType<T::AccountId>;437438 /// Index list439 pub AddressTokens get(fn address_tokens): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => Vec<TokenId>;440441 /// Tokens transfer baskets442 pub CreateItemBasket get(fn create_item_basket): map hasher(twox_64_concat) (CollectionId, T::AccountId) => T::BlockNumber;443 pub NftTransferBasket get(fn nft_transfer_basket): double_map hasher(identity) CollectionId, hasher(identity) TokenId => T::BlockNumber;444 pub FungibleTransferBasket get(fn fungible_transfer_basket): double_map hasher(identity) CollectionId, hasher(twox_64_concat) T::AccountId => T::BlockNumber;445 pub ReFungibleTransferBasket get(fn refungible_transfer_basket): double_map hasher(identity) CollectionId, hasher(identity) TokenId => T::BlockNumber;446447 // Contract Sponsorship and Ownership448 pub ContractOwner get(fn contract_owner): map hasher(twox_64_concat) T::AccountId => T::AccountId;449 pub ContractSelfSponsoring get(fn contract_self_sponsoring): map hasher(twox_64_concat) T::AccountId => bool;450 pub ContractSponsorBasket get(fn contract_sponsor_basket): map hasher(twox_64_concat) (T::AccountId, T::AccountId) => T::BlockNumber;451 pub ContractSponsoringRateLimit get(fn contract_sponsoring_rate_limit): map hasher(twox_64_concat) T::AccountId => T::BlockNumber;452 pub ContractWhiteListEnabled get(fn contract_white_list_enabled): map hasher(twox_64_concat) T::AccountId => bool; 453 pub ContractWhiteList get(fn contract_white_list): double_map hasher(twox_64_concat) T::AccountId, hasher(twox_64_concat) T::AccountId => bool; 454 }455 add_extra_genesis {456 build(|config: &GenesisConfig<T>| {457 // Modification of storage458 for (_num, _c) in &config.collection {459 <Module<T>>::init_collection(_c);460 }461462 for (_num, _c, _i) in &config.nft_item_id {463 <Module<T>>::init_nft_token(*_c, _i);464 }465466 for (collection_id, account_id, fungible_item) in &config.fungible_item_id {467 <Module<T>>::init_fungible_token(*collection_id, account_id, fungible_item);468 }469470 for (_num, _c, _i) in &config.refungible_item_id {471 <Module<T>>::init_refungible_token(*_c, _i);472 }473 })474 }475}476477decl_event!(478 pub enum Event<T>479 where480 AccountId = <T as system::Config>::AccountId,481 {482 /// New collection was created483 /// 484 /// # Arguments485 /// 486 /// * collection_id: Globally unique identifier of newly created collection.487 /// 488 /// * mode: [CollectionMode] converted into u8.489 /// 490 /// * account_id: Collection owner.491 Created(CollectionId, u8, AccountId),492493 /// New item was created.494 /// 495 /// # Arguments496 /// 497 /// * collection_id: Id of the collection where item was created.498 /// 499 /// * item_id: Id of an item. Unique within the collection.500 ItemCreated(CollectionId, TokenId),501502 /// Collection item was burned.503 /// 504 /// # Arguments505 /// 506 /// collection_id.507 /// 508 /// item_id: Identifier of burned NFT.509 ItemDestroyed(CollectionId, TokenId),510 }511);512513decl_module! {514 pub struct Module<T: Config> for enum Call 515 where 516 origin: T::Origin517 {518 fn deposit_event() = default;519 type Error = Error<T>;520521 fn on_initialize(now: T::BlockNumber) -> Weight {522523 if ChainVersion::get() < 2524 {525 let value = NextCollectionID::get();526 CreatedCollectionCount::put(value);527 ChainVersion::put(2);528 }529530 0531 }532533 /// 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.534 /// 535 /// # Permissions536 /// 537 /// * Anyone.538 /// 539 /// # Arguments540 /// 541 /// * collection_name: UTF-16 string with collection name (limit 64 characters), will be stored as zero-terminated.542 /// 543 /// * collection_description: UTF-16 string with collection description (limit 256 characters), will be stored as zero-terminated.544 /// 545 /// * token_prefix: UTF-8 string with token prefix.546 /// 547 /// * mode: [CollectionMode] collection type and type dependent data.548 // returns collection ID549 #[weight = <T as Config>::WeightInfo::create_collection()]550 pub fn create_collection(origin,551 collection_name: Vec<u16>,552 collection_description: Vec<u16>,553 token_prefix: Vec<u8>,554 mode: CollectionMode) -> DispatchResult {555556 // Anyone can create a collection557 let who = ensure_signed(origin)?;558559 let decimal_points = match mode {560 CollectionMode::Fungible(points) => points,561 _ => 0562 };563564 // bound Total number of collections565 ensure!(CollectionCount::get() < ChainLimit::get().collection_numbers_limit, Error::<T>::TotalCollectionsLimitExceeded);566567 // check params568 ensure!(decimal_points <= MAX_DECIMAL_POINTS, Error::<T>::CollectionDecimalPointLimitExceeded);569 ensure!(collection_name.len() <= 64, Error::<T>::CollectionNameLimitExceeded);570 ensure!(collection_description.len() <= 256, Error::<T>::CollectionDescriptionLimitExceeded);571 ensure!(token_prefix.len() <= 16, Error::<T>::CollectionTokenPrefixLimitExceeded);572573 // Generate next collection ID574 let next_id = CreatedCollectionCount::get()575 .checked_add(1)576 .ok_or(Error::<T>::NumOverflow)?;577578 // bound counter579 let total = CollectionCount::get()580 .checked_add(1)581 .ok_or(Error::<T>::NumOverflow)?;582583 CreatedCollectionCount::put(next_id);584 CollectionCount::put(total);585586 // Create new collection587 let new_collection = CollectionType {588 owner: who.clone(),589 name: collection_name,590 mode: mode.clone(),591 mint_mode: false,592 access: AccessMode::Normal,593 description: collection_description,594 decimal_points: decimal_points,595 token_prefix: token_prefix,596 offchain_schema: Vec::new(),597 schema_version: SchemaVersion::ImageURL,598 sponsor: T::AccountId::default(),599 sponsor_confirmed: false,600 variable_on_chain_schema: Vec::new(),601 const_on_chain_schema: Vec::new(),602 limits: CollectionLimits::default()603 };604605 // Add new collection to map606 <Collection<T>>::insert(next_id, new_collection);607608 // call event609 Self::deposit_event(RawEvent::Created(next_id, mode.into(), who.clone()));610611 Ok(())612 }613614 /// **DANGEROUS**: Destroys collection and all NFTs within this collection. Users irrecoverably lose their assets and may lose real money.615 /// 616 /// # Permissions617 /// 618 /// * Collection Owner.619 /// 620 /// # Arguments621 /// 622 /// * collection_id: collection to destroy.623 #[weight = <T as Config>::WeightInfo::destroy_collection()]624 pub fn destroy_collection(origin, collection_id: CollectionId) -> DispatchResult {625626 let sender = ensure_signed(origin)?;627 Self::check_owner_permissions(collection_id, sender)?;628629 <AddressTokens<T>>::remove_prefix(collection_id);630 <Allowances<T>>::remove_prefix(collection_id);631 <Balance<T>>::remove_prefix(collection_id);632 <ItemListIndex>::remove(collection_id);633 <AdminList<T>>::remove(collection_id);634 <Collection<T>>::remove(collection_id);635 <WhiteList<T>>::remove_prefix(collection_id);636637 <NftItemList<T>>::remove_prefix(collection_id);638 <FungibleItemList<T>>::remove_prefix(collection_id);639 <ReFungibleItemList<T>>::remove_prefix(collection_id);640641 <NftTransferBasket<T>>::remove_prefix(collection_id);642 <FungibleTransferBasket<T>>::remove_prefix(collection_id);643 <ReFungibleTransferBasket<T>>::remove_prefix(collection_id);644645 if CollectionCount::get() > 0646 {647 // bound couter648 let total = CollectionCount::get()649 .checked_sub(1)650 .ok_or(Error::<T>::NumOverflow)?;651652 CollectionCount::put(total);653 }654655 Ok(())656 }657658 /// Add an address to white list.659 /// 660 /// # Permissions661 /// 662 /// * Collection Owner663 /// * Collection Admin664 /// 665 /// # Arguments666 /// 667 /// * collection_id.668 /// 669 /// * address.670 #[weight = <T as Config>::WeightInfo::add_to_white_list()]671 pub fn add_to_white_list(origin, collection_id: CollectionId, address: T::AccountId) -> DispatchResult{672673 let sender = ensure_signed(origin)?;674 Self::check_owner_or_admin_permissions(collection_id, sender)?;675676 <WhiteList<T>>::insert(collection_id, address, true);677 678 Ok(())679 }680681 /// Remove an address from white list.682 /// 683 /// # Permissions684 /// 685 /// * Collection Owner686 /// * Collection Admin687 /// 688 /// # Arguments689 /// 690 /// * collection_id.691 /// 692 /// * address.693 #[weight = <T as Config>::WeightInfo::remove_from_white_list()]694 pub fn remove_from_white_list(origin, collection_id: CollectionId, address: T::AccountId) -> DispatchResult{695696 let sender = ensure_signed(origin)?;697 Self::check_owner_or_admin_permissions(collection_id, sender)?;698699 <WhiteList<T>>::remove(collection_id, address);700701 Ok(())702 }703704 /// Toggle between normal and white list access for the methods with access for `Anyone`.705 /// 706 /// # Permissions707 /// 708 /// * Collection Owner.709 /// 710 /// # Arguments711 /// 712 /// * collection_id.713 /// 714 /// * mode: [AccessMode]715 #[weight = <T as Config>::WeightInfo::set_public_access_mode()]716 pub fn set_public_access_mode(origin, collection_id: CollectionId, mode: AccessMode) -> DispatchResult717 {718 let sender = ensure_signed(origin)?;719720 Self::check_owner_permissions(collection_id, sender)?;721 let mut target_collection = <Collection<T>>::get(collection_id);722 target_collection.access = mode;723 <Collection<T>>::insert(collection_id, target_collection);724725 Ok(())726 }727728 /// Allows Anyone to create tokens if:729 /// * White List is enabled, and730 /// * Address is added to white list, and731 /// * This method was called with True parameter732 /// 733 /// # Permissions734 /// * Collection Owner735 ///736 /// # Arguments737 /// 738 /// * collection_id.739 /// 740 /// * mint_permission: Boolean parameter. If True, allows minting to Anyone with conditions above.741 #[weight = <T as Config>::WeightInfo::set_mint_permission()]742 pub fn set_mint_permission(origin, collection_id: CollectionId, mint_permission: bool) -> DispatchResult743 {744 let sender = ensure_signed(origin)?;745746 Self::check_owner_permissions(collection_id, sender)?;747 let mut target_collection = <Collection<T>>::get(collection_id);748 target_collection.mint_mode = mint_permission;749 <Collection<T>>::insert(collection_id, target_collection);750751 Ok(())752 }753754 /// Change the owner of the collection.755 /// 756 /// # Permissions757 /// 758 /// * Collection Owner.759 /// 760 /// # Arguments761 /// 762 /// * collection_id.763 /// 764 /// * new_owner.765 #[weight = <T as Config>::WeightInfo::change_collection_owner()]766 pub fn change_collection_owner(origin, collection_id: CollectionId, new_owner: T::AccountId) -> DispatchResult {767768 let sender = ensure_signed(origin)?;769 Self::check_owner_permissions(collection_id, sender)?;770 let mut target_collection = <Collection<T>>::get(collection_id);771 target_collection.owner = new_owner;772 <Collection<T>>::insert(collection_id, target_collection);773774 Ok(())775 }776777 /// Adds an admin of the Collection.778 /// 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. 779 /// 780 /// # Permissions781 /// 782 /// * Collection Owner.783 /// * Collection Admin.784 /// 785 /// # Arguments786 /// 787 /// * collection_id: ID of the Collection to add admin for.788 /// 789 /// * new_admin_id: Address of new admin to add.790 #[weight = <T as Config>::WeightInfo::add_collection_admin()]791 pub fn add_collection_admin(origin, collection_id: CollectionId, new_admin_id: T::AccountId) -> DispatchResult {792793 let sender = ensure_signed(origin)?;794 Self::check_owner_or_admin_permissions(collection_id, sender)?;795 let mut admin_arr: Vec<T::AccountId> = Vec::new();796797 if <AdminList<T>>::contains_key(collection_id)798 {799 admin_arr = <AdminList<T>>::get(collection_id);800 ensure!(!admin_arr.contains(&new_admin_id), Error::<T>::AlreadyAdmin);801 }802803 // Number of collection admins804 ensure!((admin_arr.len() as u64) < ChainLimit::get().collections_admins_limit, Error::<T>::CollectionAdminsLimitExceeded);805806 admin_arr.push(new_admin_id);807 <AdminList<T>>::insert(collection_id, admin_arr);808809 Ok(())810 }811812 /// 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.813 ///814 /// # Permissions815 /// 816 /// * Collection Owner.817 /// * Collection Admin.818 /// 819 /// # Arguments820 /// 821 /// * collection_id: ID of the Collection to remove admin for.822 /// 823 /// * account_id: Address of admin to remove.824 #[weight = <T as Config>::WeightInfo::remove_collection_admin()]825 pub fn remove_collection_admin(origin, collection_id: CollectionId, account_id: T::AccountId) -> DispatchResult {826827 let sender = ensure_signed(origin)?;828 Self::check_owner_or_admin_permissions(collection_id, sender)?;829 ensure!(<AdminList<T>>::contains_key(collection_id), Error::<T>::AdminNotFound);830831 let mut admin_arr = <AdminList<T>>::get(collection_id);832 admin_arr.retain(|i| *i != account_id);833 <AdminList<T>>::insert(collection_id, admin_arr);834835 Ok(())836 }837838 /// # Permissions839 /// 840 /// * Collection Owner841 /// 842 /// # Arguments843 /// 844 /// * collection_id.845 /// 846 /// * new_sponsor.847 #[weight = <T as Config>::WeightInfo::set_collection_sponsor()]848 pub fn set_collection_sponsor(origin, collection_id: CollectionId, new_sponsor: T::AccountId) -> DispatchResult {849850 let sender = ensure_signed(origin)?;851 ensure!(<Collection<T>>::contains_key(collection_id), Error::<T>::CollectionNotFound);852853 let mut target_collection = <Collection<T>>::get(collection_id);854 ensure!(sender == target_collection.owner, Error::<T>::NoPermission);855856 target_collection.sponsor = new_sponsor;857 target_collection.sponsor_confirmed = false;858 <Collection<T>>::insert(collection_id, target_collection);859860 Ok(())861 }862863 /// # Permissions864 /// 865 /// * Sponsor.866 /// 867 /// # Arguments868 /// 869 /// * collection_id.870 #[weight = <T as Config>::WeightInfo::confirm_sponsorship()]871 pub fn confirm_sponsorship(origin, collection_id: CollectionId) -> DispatchResult {872873 let sender = ensure_signed(origin)?;874 ensure!(<Collection<T>>::contains_key(collection_id), Error::<T>::CollectionNotFound);875876 let mut target_collection = <Collection<T>>::get(collection_id);877 ensure!(sender == target_collection.sponsor, Error::<T>::ConfirmUnsetSponsorFail);878879 target_collection.sponsor_confirmed = true;880 <Collection<T>>::insert(collection_id, target_collection);881882 Ok(())883 }884885 /// Switch back to pay-per-own-transaction model.886 ///887 /// # Permissions888 ///889 /// * Collection owner.890 /// 891 /// # Arguments892 /// 893 /// * collection_id.894 #[weight = <T as Config>::WeightInfo::remove_collection_sponsor()]895 pub fn remove_collection_sponsor(origin, collection_id: CollectionId) -> DispatchResult {896897 let sender = ensure_signed(origin)?;898 ensure!(<Collection<T>>::contains_key(collection_id), Error::<T>::CollectionNotFound);899900 let mut target_collection = <Collection<T>>::get(collection_id);901 ensure!(sender == target_collection.owner, Error::<T>::NoPermission);902903 target_collection.sponsor = T::AccountId::default();904 target_collection.sponsor_confirmed = false;905 <Collection<T>>::insert(collection_id, target_collection);906907 Ok(())908 }909910 /// This method creates a concrete instance of NFT Collection created with CreateCollection method.911 /// 912 /// # Permissions913 /// 914 /// * Collection Owner.915 /// * Collection Admin.916 /// * Anyone if917 /// * White List is enabled, and918 /// * Address is added to white list, and919 /// * MintPermission is enabled (see SetMintPermission method)920 /// 921 /// # Arguments922 /// 923 /// * collection_id: ID of the collection.924 /// 925 /// * owner: Address, initial owner of the NFT.926 ///927 /// * data: Token data to store on chain.928 // #[weight =929 // (130_000_000 as Weight)930 // .saturating_add((2135 as Weight).saturating_mul((properties.len() as u64) as Weight))931 // .saturating_add(RocksDbWeight::get().reads(10 as Weight))932 // .saturating_add(RocksDbWeight::get().writes(8 as Weight))]933934 #[weight = <T as Config>::WeightInfo::create_item(data.len())]935 pub fn create_item(origin, collection_id: CollectionId, owner: T::AccountId, data: CreateItemData) -> DispatchResult {936937 let sender = ensure_signed(origin)?;938939 Self::collection_exists(collection_id)?;940941 let target_collection = <Collection<T>>::get(collection_id);942943 Self::can_create_items_in_collection(collection_id, &target_collection, &sender, &owner)?;944 Self::validate_create_item_args(&target_collection, &data)?;945 Self::create_item_no_validation(collection_id, owner, data)?;946947 Ok(())948 }949950 /// This method creates multiple instances of NFT Collection created with CreateCollection method.951 /// 952 /// # Permissions953 /// 954 /// * Collection Owner.955 /// * Collection Admin.956 /// * Anyone if957 /// * White List is enabled, and958 /// * Address is added to white list, and959 /// * MintPermission is enabled (see SetMintPermission method)960 /// 961 /// # Arguments962 /// 963 /// * collection_id: ID of the collection.964 /// 965 /// * itemsData: Array items properties. Each property is an array of bytes itself, see [create_item].966 /// 967 /// * owner: Address, initial owner of the NFT.968 #[weight = <T as Config>::WeightInfo::create_item(items_data.into_iter()969 .map(|data| { data.len() })970 .sum())]971 pub fn create_multiple_items(origin, collection_id: CollectionId, owner: T::AccountId, items_data: Vec<CreateItemData>) -> DispatchResult {972973 ensure!(items_data.len() > 0, Error::<T>::EmptyArgument);974 let sender = ensure_signed(origin)?;975976 Self::collection_exists(collection_id)?;977 let target_collection = <Collection<T>>::get(collection_id);978979 Self::can_create_items_in_collection(collection_id, &target_collection, &sender, &owner)?;980981 for data in &items_data {982 Self::validate_create_item_args(&target_collection, data)?;983 }984 for data in &items_data {985 Self::create_item_no_validation(collection_id, owner.clone(), data.clone())?;986 }987988 Ok(())989 }990991 /// Destroys a concrete instance of NFT.992 /// 993 /// # Permissions994 /// 995 /// * Collection Owner.996 /// * Collection Admin.997 /// * Current NFT Owner.998 /// 999 /// # Arguments1000 /// 1001 /// * collection_id: ID of the collection.1002 /// 1003 /// * item_id: ID of NFT to burn.1004 #[weight = <T as Config>::WeightInfo::burn_item()]1005 pub fn burn_item(origin, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {10061007 let sender = ensure_signed(origin)?;1008 Self::collection_exists(collection_id)?;10091010 // Transfer permissions check1011 let target_collection = <Collection<T>>::get(collection_id);1012 ensure!(Self::is_item_owner(sender.clone(), collection_id, item_id) ||1013 Self::is_owner_or_admin_permissions(collection_id, sender.clone()),1014 Error::<T>::NoPermission);10151016 if target_collection.access == AccessMode::WhiteList {1017 Self::check_white_list(collection_id, &sender)?;1018 }10191020 match target_collection.mode1021 {1022 CollectionMode::NFT => Self::burn_nft_item(collection_id, item_id)?,1023 CollectionMode::Fungible(_) => Self::burn_fungible_item(&sender, collection_id, value)?,1024 CollectionMode::ReFungible => Self::burn_refungible_item(collection_id, item_id, &sender)?,1025 _ => ()1026 };10271028 // call event1029 Self::deposit_event(RawEvent::ItemDestroyed(collection_id, item_id));10301031 Ok(())1032 }10331034 /// Change ownership of the token.1035 /// 1036 /// # Permissions1037 /// 1038 /// * Collection Owner1039 /// * Collection Admin1040 /// * Current NFT owner1041 ///1042 /// # Arguments1043 /// 1044 /// * recipient: Address of token recipient.1045 /// 1046 /// * collection_id.1047 /// 1048 /// * item_id: ID of the item1049 /// * Non-Fungible Mode: Required.1050 /// * Fungible Mode: Ignored.1051 /// * Re-Fungible Mode: Required.1052 /// 1053 /// * value: Amount to transfer.1054 /// * Non-Fungible Mode: Ignored1055 /// * Fungible Mode: Must specify transferred amount1056 /// * Re-Fungible Mode: Must specify transferred portion (between 0 and 1)1057 #[weight = <T as Config>::WeightInfo::transfer()]1058 pub fn transfer(origin, recipient: T::AccountId, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {1059 let sender = ensure_signed(origin)?;1060 Self::transfer_internal(sender, recipient, collection_id, item_id, value)1061 }10621063 /// Set, change, or remove approved address to transfer the ownership of the NFT.1064 /// 1065 /// # Permissions1066 /// 1067 /// * Collection Owner1068 /// * Collection Admin1069 /// * Current NFT owner1070 /// 1071 /// # Arguments1072 /// 1073 /// * approved: Address that is approved to transfer this NFT or zero (if needed to remove approval).1074 /// 1075 /// * collection_id.1076 /// 1077 /// * item_id: ID of the item.1078 #[weight = <T as Config>::WeightInfo::approve()]1079 pub fn approve(origin, spender: T::AccountId, collection_id: CollectionId, item_id: TokenId, amount: u128) -> DispatchResult {10801081 let sender = ensure_signed(origin)?;10821083 Self::collection_exists(collection_id)?;1084 Self::token_exists(collection_id, item_id, &sender)?;10851086 // Transfer permissions check1087 let target_collection = <Collection<T>>::get(collection_id);1088 let allowance_limit = if Self::is_owner_or_admin_permissions(1089 collection_id,1090 sender.clone(),1091 ) {1092 None1093 } else if let Some(amount) = Self::owned_amount(1094 sender.clone(),1095 collection_id,1096 item_id,1097 ) {1098 Some(amount)1099 } else {1100 fail!(Error::<T>::NoPermission);1101 };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 if let Some(limit) = allowance_limit {1114 ensure!(limit >= allowance, Error::<T>::CantAfford);1115 }1116 <Allowances<T>>::insert(collection_id, (item_id, sender.clone(), spender.clone()), allowance);11171118 Ok(())1119 }1120 1121 /// 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.1122 /// 1123 /// # Permissions1124 /// * Collection Owner1125 /// * Collection Admin1126 /// * Current NFT owner1127 /// * Address approved by current NFT owner1128 /// 1129 /// # Arguments1130 /// 1131 /// * from: Address that owns token.1132 /// 1133 /// * recipient: Address of token recipient.1134 /// 1135 /// * collection_id.1136 /// 1137 /// * item_id: ID of the item.1138 /// 1139 /// * value: Amount to transfer.1140 #[weight = <T as Config>::WeightInfo::transfer_from()]1141 pub fn transfer_from(origin, from: T::AccountId, recipient: T::AccountId, collection_id: CollectionId, item_id: TokenId, value: u128 ) -> DispatchResult {11421143 let sender = ensure_signed(origin)?;1144 let mut appoved_transfer = false;11451146 // Check approval1147 let mut approval: u128 = 0;1148 if <Allowances<T>>::contains_key(collection_id, (item_id, &from, &sender)) {1149 approval = <Allowances<T>>::get(collection_id, (item_id, &from, &sender));1150 ensure!(approval >= value, Error::<T>::TokenValueNotEnough);1151 appoved_transfer = true;1152 }11531154 let target_collection = <Collection<T>>::get(collection_id);11551156 // Limits check1157 Self::is_correct_transfer(collection_id, &target_collection, &recipient)?;11581159 // Transfer permissions check 1160 ensure!(appoved_transfer || Self::is_owner_or_admin_permissions(collection_id, sender.clone()),1161 Error::<T>::NoPermission);11621163 if target_collection.access == AccessMode::WhiteList {1164 Self::check_white_list(collection_id, &sender)?;1165 Self::check_white_list(collection_id, &recipient)?;1166 }11671168 // Reduce approval by transferred amount or remove if remaining approval drops to 01169 if approval.checked_sub(value).unwrap_or(0) > 0 {1170 <Allowances<T>>::insert(collection_id, (item_id, &from, &sender), approval - value);1171 }1172 else {1173 <Allowances<T>>::remove(collection_id, (item_id, &from, &sender));1174 }11751176 match target_collection.mode1177 {1178 CollectionMode::NFT => Self::transfer_nft(collection_id, item_id, from, recipient)?,1179 CollectionMode::Fungible(_) => Self::transfer_fungible(collection_id, value, &from, &recipient)?,1180 CollectionMode::ReFungible => Self::transfer_refungible(collection_id, item_id, value, from.clone(), recipient)?,1181 _ => ()1182 };11831184 Ok(())1185 }11861187 // #[weight = 0]1188 // pub fn safe_transfer_from(origin, collection_id: CollectionId, item_id: TokenId, new_owner: T::AccountId) -> DispatchResult {11891190 // // let no_perm_mes = "You do not have permissions to modify this collection";1191 // // ensure!(<ApprovedList<T>>::contains_key((collection_id, item_id)), no_perm_mes);1192 // // let list_itm = <ApprovedList<T>>::get((collection_id, item_id));1193 // // ensure!(list_itm.contains(&new_owner.clone()), no_perm_mes);11941195 // // // on_nft_received call11961197 // // Self::transfer(origin, collection_id, item_id, new_owner)?;11981199 // Ok(())1200 // }12011202 /// Set off-chain data schema.1203 /// 1204 /// # Permissions1205 /// 1206 /// * Collection Owner1207 /// * Collection Admin1208 /// 1209 /// # Arguments1210 /// 1211 /// * collection_id.1212 /// 1213 /// * schema: String representing the offchain data schema.1214 #[weight = <T as Config>::WeightInfo::set_variable_meta_data()]1215 pub fn set_variable_meta_data (1216 origin,1217 collection_id: CollectionId,1218 item_id: TokenId,1219 data: Vec<u8>1220 ) -> DispatchResult {1221 let sender = ensure_signed(origin)?;1222 1223 Self::collection_exists(collection_id)?;1224 Self::token_exists(collection_id, item_id, &sender)?;12251226 ensure!(ChainLimit::get().custom_data_limit >= data.len() as u32, Error::<T>::TokenVariableDataLimitExceeded);12271228 // Modify permissions check1229 let target_collection = <Collection<T>>::get(collection_id);1230 ensure!(Self::is_item_owner(sender.clone(), collection_id, item_id) ||1231 Self::is_owner_or_admin_permissions(collection_id, sender.clone()),1232 Error::<T>::NoPermission);12331234 match target_collection.mode1235 {1236 CollectionMode::NFT => Self::set_nft_variable_data(collection_id, item_id, data)?,1237 CollectionMode::ReFungible => Self::set_re_fungible_variable_data(collection_id, item_id, data)?,1238 CollectionMode::Fungible(_) => fail!(Error::<T>::CantStoreMetadataInFungibleTokens),1239 _ => fail!(Error::<T>::UnexpectedCollectionType)1240 };12411242 Ok(())1243 }1244 1245 /// Set schema standard1246 /// ImageURL1247 /// Unique1248 /// 1249 /// # Permissions1250 /// 1251 /// * Collection Owner1252 /// * Collection Admin1253 /// 1254 /// # Arguments1255 /// 1256 /// * collection_id.1257 /// 1258 /// * schema: SchemaVersion: enum1259 #[weight = <T as Config>::WeightInfo::set_schema_version()]1260 pub fn set_schema_version(1261 origin,1262 collection_id: CollectionId,1263 version: SchemaVersion1264 ) -> DispatchResult {1265 let sender = ensure_signed(origin)?;1266 Self::check_owner_or_admin_permissions(collection_id, sender.clone())?;1267 let mut target_collection = <Collection<T>>::get(collection_id);1268 target_collection.schema_version = version;1269 <Collection<T>>::insert(collection_id, target_collection);12701271 Ok(())1272 }12731274 /// Set off-chain data schema.1275 /// 1276 /// # Permissions1277 /// 1278 /// * Collection Owner1279 /// * Collection Admin1280 /// 1281 /// # Arguments1282 /// 1283 /// * collection_id.1284 /// 1285 /// * schema: String representing the offchain data schema.1286 #[weight = <T as Config>::WeightInfo::set_offchain_schema()]1287 pub fn set_offchain_schema(1288 origin,1289 collection_id: CollectionId,1290 schema: Vec<u8>1291 ) -> DispatchResult {1292 let sender = ensure_signed(origin)?;1293 Self::check_owner_or_admin_permissions(collection_id, sender.clone())?;12941295 // check schema limit1296 ensure!(schema.len() as u32 <= ChainLimit::get().offchain_schema_limit, "");12971298 let mut target_collection = <Collection<T>>::get(collection_id);1299 target_collection.offchain_schema = schema;1300 <Collection<T>>::insert(collection_id, target_collection);13011302 Ok(())1303 }13041305 /// Set const on-chain data schema.1306 /// 1307 /// # Permissions1308 /// 1309 /// * Collection Owner1310 /// * Collection Admin1311 /// 1312 /// # Arguments1313 /// 1314 /// * collection_id.1315 /// 1316 /// * schema: String representing the const on-chain data schema.1317 #[weight = <T as Config>::WeightInfo::set_const_on_chain_schema()]1318 pub fn set_const_on_chain_schema (1319 origin,1320 collection_id: CollectionId,1321 schema: Vec<u8>1322 ) -> DispatchResult {1323 let sender = ensure_signed(origin)?;1324 Self::check_owner_or_admin_permissions(collection_id, sender.clone())?;13251326 // check schema limit1327 ensure!(schema.len() as u32 <= ChainLimit::get().const_on_chain_schema_limit, "");13281329 let mut target_collection = <Collection<T>>::get(collection_id);1330 target_collection.const_on_chain_schema = schema;1331 <Collection<T>>::insert(collection_id, target_collection);13321333 Ok(())1334 }13351336 /// Set variable on-chain data schema.1337 /// 1338 /// # Permissions1339 /// 1340 /// * Collection Owner1341 /// * Collection Admin1342 /// 1343 /// # Arguments1344 /// 1345 /// * collection_id.1346 /// 1347 /// * schema: String representing the variable on-chain data schema.1348 #[weight = <T as Config>::WeightInfo::set_const_on_chain_schema()]1349 pub fn set_variable_on_chain_schema (1350 origin,1351 collection_id: CollectionId,1352 schema: Vec<u8>1353 ) -> DispatchResult {1354 let sender = ensure_signed(origin)?;1355 Self::check_owner_or_admin_permissions(collection_id, sender.clone())?;13561357 // check schema limit1358 ensure!(schema.len() as u32 <= ChainLimit::get().variable_on_chain_schema_limit, "");13591360 let mut target_collection = <Collection<T>>::get(collection_id);1361 target_collection.variable_on_chain_schema = schema;1362 <Collection<T>>::insert(collection_id, target_collection);13631364 Ok(())1365 }13661367 // Sudo permissions function1368 #[weight = <T as Config>::WeightInfo::set_chain_limits()]1369 pub fn set_chain_limits(1370 origin,1371 limits: ChainLimits1372 ) -> DispatchResult {13731374 #[cfg(not(feature = "runtime-benchmarks"))]1375 ensure_root(origin)?;13761377 <ChainLimit>::put(limits);1378 Ok(())1379 }13801381 /// Enable smart contract self-sponsoring.1382 /// 1383 /// # Permissions1384 /// 1385 /// * Contract Owner1386 /// 1387 /// # Arguments1388 /// 1389 /// * contract address1390 /// * enable flag1391 /// 1392 #[weight = <T as Config>::WeightInfo::enable_contract_sponsoring()]1393 pub fn enable_contract_sponsoring(1394 origin,1395 contract_address: T::AccountId,1396 enable: bool1397 ) -> DispatchResult {13981399 let sender = ensure_signed(origin)?;14001401 #[cfg(feature = "runtime-benchmarks")]1402 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());14031404 Self::ensure_contract_owned(sender, &contract_address)?;14051406 <ContractSelfSponsoring<T>>::insert(contract_address, enable);1407 Ok(())1408 }14091410 /// Set the rate limit for contract sponsoring to specified number of blocks.1411 /// 1412 /// If not set (has the default value of 0 blocks), the sponsoring will be disabled. 1413 /// If set to the number B (for blocks), the transactions will be sponsored with a rate 1414 /// limit of B, i.e. fees for every transaction sent to this smart contract will be paid 1415 /// from contract endowment if there are at least B blocks between such transactions. 1416 /// Nonetheless, if transactions are sent more frequently, the fees are paid by the sender.1417 /// 1418 /// # Permissions1419 /// 1420 /// * Contract Owner1421 /// 1422 /// # Arguments1423 /// 1424 /// -`contract_address`: Address of the contract to sponsor1425 /// -`rate_limit`: Number of blocks to wait until the next sponsored transaction is allowed1426 /// 1427 #[weight = <T as Config>::WeightInfo::set_contract_sponsoring_rate_limit()]1428 pub fn set_contract_sponsoring_rate_limit(1429 origin,1430 contract_address: T::AccountId,1431 rate_limit: T::BlockNumber1432 ) -> DispatchResult {1433 let sender = ensure_signed(origin)?;14341435 #[cfg(feature = "runtime-benchmarks")]1436 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());14371438 Self::ensure_contract_owned(sender, &contract_address)?;1439 <ContractSponsoringRateLimit<T>>::insert(contract_address, rate_limit);1440 Ok(())1441 }14421443 /// Enable the white list for a contract. Only addresses added to the white list with addToContractWhiteList will be able to call this smart contract.1444 /// 1445 /// # Permissions1446 /// 1447 /// * Address that deployed smart contract.1448 /// 1449 /// # Arguments1450 /// 1451 /// -`contract_address`: Address of the contract.1452 /// 1453 /// - `enable`: . 1454 #[weight = <T as Config>::WeightInfo::toggle_contract_white_list()]1455 pub fn toggle_contract_white_list(1456 origin,1457 contract_address: T::AccountId,1458 enable: bool1459 ) -> DispatchResult {1460 let sender = ensure_signed(origin)?;14611462 #[cfg(feature = "runtime-benchmarks")]1463 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());14641465 Self::ensure_contract_owned(sender, &contract_address)?;1466 <ContractWhiteListEnabled<T>>::insert(contract_address, enable);1467 Ok(())1468 }1469 1470 /// Add an address to smart contract white list.1471 /// 1472 /// # Permissions1473 /// 1474 /// * Address that deployed smart contract.1475 /// 1476 /// # Arguments1477 /// 1478 /// -`contract_address`: Address of the contract.1479 ///1480 /// -`account_address`: Address to add.1481 #[weight = <T as Config>::WeightInfo::add_to_contract_white_list()]1482 pub fn add_to_contract_white_list(1483 origin,1484 contract_address: T::AccountId,1485 account_address: T::AccountId1486 ) -> DispatchResult {1487 let sender = ensure_signed(origin)?;14881489 #[cfg(feature = "runtime-benchmarks")]1490 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());1491 1492 Self::ensure_contract_owned(sender, &contract_address)?; 1493 <ContractWhiteList<T>>::insert(contract_address, account_address, true);1494 Ok(())1495 }14961497 /// Remove an address from smart contract white list.1498 /// 1499 /// # Permissions1500 /// 1501 /// * Address that deployed smart contract.1502 /// 1503 /// # Arguments1504 /// 1505 /// -`contract_address`: Address of the contract.1506 ///1507 /// -`account_address`: Address to remove.1508 #[weight = <T as Config>::WeightInfo::remove_from_contract_white_list()]1509 pub fn remove_from_contract_white_list(1510 origin,1511 contract_address: T::AccountId,1512 account_address: T::AccountId1513 ) -> DispatchResult {1514 let sender = ensure_signed(origin)?;15151516 #[cfg(feature = "runtime-benchmarks")]1517 <ContractOwner<T>>::insert(contract_address.clone(), sender.clone());15181519 Self::ensure_contract_owned(sender, &contract_address)?;1520 <ContractWhiteList<T>>::remove(contract_address, account_address);1521 Ok(())1522 }15231524 #[weight = <T as Config>::WeightInfo::set_collection_limits()]1525 pub fn set_collection_limits(1526 origin,1527 collection_id: u32,1528 limits: CollectionLimits,1529 ) -> DispatchResult {1530 let sender = ensure_signed(origin)?;1531 Self::check_owner_permissions(collection_id, sender.clone())?;1532 let mut target_collection = <Collection<T>>::get(collection_id);1533 let chain_limits = ChainLimit::get();1534 let climits = target_collection.limits;15351536 // collection bounds1537 ensure!(limits.sponsor_transfer_timeout <= MAX_SPONSOR_TIMEOUT &&1538 limits.account_token_ownership_limit <= MAX_TOKEN_OWNERSHIP, 1539 Error::<T>::CollectionLimitBoundsExceeded);15401541 // token_limit check prev1542 ensure!(climits.token_limit > limits.token_limit && 1543 limits.token_limit <= chain_limits.account_token_ownership_limit, 1544 Error::<T>::AccountTokenLimitExceeded);15451546 target_collection.limits = limits;1547 <Collection<T>>::insert(collection_id, target_collection);15481549 Ok(())1550 } 1551 }1552}15531554impl<T: Config> Module<T> {15551556 pub fn transfer_internal(sender: T::AccountId, recipient: T::AccountId, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {15571558 let target_collection = <Collection<T>>::get(collection_id);15591560 // Limits check1561 Self::is_correct_transfer(collection_id, &target_collection, &recipient)?;15621563 // Transfer permissions check1564 ensure!(Self::is_item_owner(sender.clone(), collection_id, item_id) ||1565 Self::is_owner_or_admin_permissions(collection_id, sender.clone()),1566 Error::<T>::NoPermission);15671568 if target_collection.access == AccessMode::WhiteList {1569 Self::check_white_list(collection_id, &sender)?;1570 Self::check_white_list(collection_id, &recipient)?;1571 }15721573 match target_collection.mode1574 {1575 CollectionMode::NFT => Self::transfer_nft(collection_id, item_id, sender.clone(), recipient)?,1576 CollectionMode::Fungible(_) => Self::transfer_fungible(collection_id, value, &sender, &recipient)?,1577 CollectionMode::ReFungible => Self::transfer_refungible(collection_id, item_id, value, sender.clone(), recipient)?,1578 _ => ()1579 };15801581 Ok(())1582 }158315841585 fn is_correct_transfer(collection_id: CollectionId, collection: &CollectionType<T::AccountId>, recipient: &T::AccountId) -> DispatchResult {15861587 // check token limit and account token limit1588 let account_items: u32 = <AddressTokens<T>>::get(collection_id, recipient).len() as u32;1589 ensure!(collection.limits.account_token_ownership_limit > account_items, Error::<T>::AccountTokenLimitExceeded);1590 1591 Ok(())1592 }15931594 fn can_create_items_in_collection(collection_id: CollectionId, collection: &CollectionType<T::AccountId>, sender: &T::AccountId, owner: &T::AccountId) -> DispatchResult {15951596 // check token limit and account token limit1597 let total_items: u32 = ItemListIndex::get(collection_id);1598 let account_items: u32 = <AddressTokens<T>>::get(collection_id, owner).len() as u32;1599 ensure!(collection.limits.token_limit > total_items, Error::<T>::CollectionTokenLimitExceeded);1600 ensure!(collection.limits.account_token_ownership_limit > account_items, Error::<T>::AccountTokenLimitExceeded);16011602 if !Self::is_owner_or_admin_permissions(collection_id, sender.clone()) {1603 ensure!(collection.mint_mode == true, Error::<T>::PublicMintingNotAllowed);1604 Self::check_white_list(collection_id, owner)?;1605 Self::check_white_list(collection_id, sender)?;1606 }16071608 Ok(())1609 }16101611 fn validate_create_item_args(target_collection: &CollectionType<T::AccountId>, data: &CreateItemData) -> DispatchResult {1612 match target_collection.mode1613 {1614 CollectionMode::NFT => {1615 if let CreateItemData::NFT(data) = data {1616 // 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);1619 } else {1620 fail!(Error::<T>::NotNftDataUsedToMintNftCollectionToken);1621 }1622 },1623 CollectionMode::Fungible(_) => {1624 if let CreateItemData::Fungible(_) = data {1625 } else {1626 fail!(Error::<T>::NotFungibleDataUsedToMintFungibleCollectionToken);1627 }1628 },1629 CollectionMode::ReFungible => {1630 if let CreateItemData::ReFungible(data) = data {16311632 // check sizes1633 ensure!(ChainLimit::get().custom_data_limit >= data.const_data.len() as u32, Error::<T>::TokenConstDataLimitExceeded);1634 ensure!(ChainLimit::get().custom_data_limit >= data.variable_data.len() as u32, Error::<T>::TokenVariableDataLimitExceeded);16351636 // Check refungibility limits1637 ensure!(data.pieces <= MAX_REFUNGIBLE_PIECES, Error::<T>::WrongRefungiblePieces);1638 ensure!(data.pieces > 0, Error::<T>::WrongRefungiblePieces);1639 } else {1640 fail!(Error::<T>::NotReFungibleDataUsedToMintReFungibleCollectionToken);1641 }1642 },1643 _ => { fail!(Error::<T>::UnexpectedCollectionType); }1644 };16451646 Ok(())1647 }16481649 fn create_item_no_validation(collection_id: CollectionId, owner: T::AccountId, data: CreateItemData) -> DispatchResult {1650 match data1651 {1652 CreateItemData::NFT(data) => {1653 let item = NftItemType {1654 owner,1655 const_data: data.const_data,1656 variable_data: data.variable_data1657 };16581659 Self::add_nft_item(collection_id, item)?;1660 },1661 CreateItemData::Fungible(data) => {1662 Self::add_fungible_item(collection_id, &owner, data.value)?;1663 },1664 CreateItemData::ReFungible(data) => {1665 let mut owner_list = Vec::new();1666 owner_list.push(Ownership {owner: owner.clone(), fraction: data.pieces});16671668 let item = ReFungibleItemType {1669 owner: owner_list,1670 const_data: data.const_data,1671 variable_data: data.variable_data1672 };16731674 Self::add_refungible_item(collection_id, item)?;1675 }1676 };16771678 // call event1679 Self::deposit_event(RawEvent::ItemCreated(collection_id, <ItemListIndex>::get(collection_id)));16801681 Ok(())1682 }16831684 fn add_fungible_item(collection_id: CollectionId, owner: &T::AccountId, value: u128) -> DispatchResult {16851686 // Does new owner already have an account?1687 let mut balance: u128 = 0;1688 if <FungibleItemList<T>>::contains_key(collection_id, owner) {1689 balance = <FungibleItemList<T>>::get(collection_id, owner).value;1690 } 16911692 // Mint 1693 let item = FungibleItemType {1694 value: balance + value1695 };1696 <FungibleItemList<T>>::insert(collection_id, (*owner).clone(), item);16971698 // Update balance1699 let new_balance = <Balance<T>>::get(collection_id, owner)1700 .checked_add(value)1701 .ok_or(Error::<T>::NumOverflow)?;1702 <Balance<T>>::insert(collection_id, (*owner).clone(), new_balance);17031704 Ok(())1705 }17061707 fn add_refungible_item(collection_id: CollectionId, item: ReFungibleItemType<T::AccountId>) -> DispatchResult {1708 let current_index = <ItemListIndex>::get(collection_id)1709 .checked_add(1)1710 .ok_or(Error::<T>::NumOverflow)?;1711 let itemcopy = item.clone();17121713 let value = item.owner.first().unwrap().fraction;1714 let owner = item.owner.first().unwrap().owner.clone();17151716 Self::add_token_index(collection_id, current_index, &owner)?;17171718 <ItemListIndex>::insert(collection_id, current_index);1719 <ReFungibleItemList<T>>::insert(collection_id, current_index, itemcopy);17201721 // Update balance1722 let new_balance = <Balance<T>>::get(collection_id, &owner)1723 .checked_add(value)1724 .ok_or(Error::<T>::NumOverflow)?;1725 <Balance<T>>::insert(collection_id, owner.clone(), new_balance);17261727 Ok(())1728 }17291730 fn add_nft_item(collection_id: CollectionId, item: NftItemType<T::AccountId>) -> DispatchResult {1731 let current_index = <ItemListIndex>::get(collection_id)1732 .checked_add(1)1733 .ok_or(Error::<T>::NumOverflow)?;17341735 let item_owner = item.owner.clone();1736 Self::add_token_index(collection_id, current_index, &item.owner)?;17371738 <ItemListIndex>::insert(collection_id, current_index);1739 <NftItemList<T>>::insert(collection_id, current_index, item);17401741 // Update balance1742 let new_balance = <Balance<T>>::get(collection_id, item_owner.clone())1743 .checked_add(1)1744 .ok_or(Error::<T>::NumOverflow)?;1745 <Balance<T>>::insert(collection_id, item_owner.clone(), new_balance);17461747 Ok(())1748 }17491750 fn burn_refungible_item(1751 collection_id: CollectionId,1752 item_id: TokenId,1753 owner: &T::AccountId,1754 ) -> DispatchResult {1755 ensure!(1756 <ReFungibleItemList<T>>::contains_key(collection_id, item_id),1757 Error::<T>::TokenNotFound1758 );1759 let mut token = <ReFungibleItemList<T>>::get(collection_id, item_id);1760 let rft_balance = token1761 .owner1762 .iter()1763 .filter(|&i| i.owner == *owner)1764 .next()1765 .unwrap();1766 Self::remove_token_index(collection_id, item_id, owner)?;17671768 // update balance1769 let new_balance = <Balance<T>>::get(collection_id, rft_balance.owner.clone())1770 .checked_sub(rft_balance.fraction)1771 .ok_or(Error::<T>::NumOverflow)?;1772 <Balance<T>>::insert(collection_id, rft_balance.owner.clone(), new_balance);17731774 // Re-create owners list with sender removed1775 let index = token1776 .owner1777 .iter()1778 .position(|i| i.owner == *owner)1779 .unwrap();1780 token.owner.remove(index);1781 let owner_count = token.owner.len();17821783 // Burn the token completely if this was the last (only) owner1784 if owner_count == 0 {1785 <ReFungibleItemList<T>>::remove(collection_id, item_id);1786 }1787 else {1788 <ReFungibleItemList<T>>::insert(collection_id, item_id, token);1789 }17901791 Ok(())1792 }17931794 fn burn_nft_item(collection_id: CollectionId, item_id: TokenId) -> DispatchResult {1795 ensure!(1796 <NftItemList<T>>::contains_key(collection_id, item_id),1797 Error::<T>::TokenNotFound1798 );1799 let item = <NftItemList<T>>::get(collection_id, item_id);1800 Self::remove_token_index(collection_id, item_id, &item.owner)?;18011802 // update balance1803 let new_balance = <Balance<T>>::get(collection_id, &item.owner)1804 .checked_sub(1)1805 .ok_or(Error::<T>::NumOverflow)?;1806 <Balance<T>>::insert(collection_id, item.owner.clone(), new_balance);1807 <NftItemList<T>>::remove(collection_id, item_id);18081809 Ok(())1810 }18111812 fn burn_fungible_item(owner: &T::AccountId, collection_id: CollectionId, value: u128) -> DispatchResult {1813 ensure!(1814 <FungibleItemList<T>>::contains_key(collection_id, owner),1815 Error::<T>::TokenNotFound1816 );1817 let mut balance = <FungibleItemList<T>>::get(collection_id, owner);1818 ensure!(balance.value >= value, Error::<T>::TokenValueNotEnough);18191820 // update balance1821 let new_balance = <Balance<T>>::get(collection_id, owner)1822 .checked_sub(value)1823 .ok_or(Error::<T>::NumOverflow)?;1824 <Balance<T>>::insert(collection_id, (*owner).clone(), new_balance);18251826 if balance.value - value > 0 {1827 balance.value -= value;1828 <FungibleItemList<T>>::insert(collection_id, (*owner).clone(), balance);1829 }1830 else {1831 <FungibleItemList<T>>::remove(collection_id, owner);1832 }18331834 Ok(())1835 }18361837 fn collection_exists(collection_id: CollectionId) -> DispatchResult {1838 ensure!(1839 <Collection<T>>::contains_key(collection_id),1840 Error::<T>::CollectionNotFound1841 );1842 Ok(())1843 }18441845 fn check_owner_permissions(collection_id: CollectionId, subject: T::AccountId) -> DispatchResult {1846 Self::collection_exists(collection_id)?;18471848 let target_collection = <Collection<T>>::get(collection_id);1849 ensure!(1850 subject == target_collection.owner,1851 Error::<T>::NoPermission1852 );18531854 Ok(())1855 }18561857 fn is_owner_or_admin_permissions(collection_id: CollectionId, subject: T::AccountId) -> bool {1858 let target_collection = <Collection<T>>::get(collection_id);1859 let mut result: bool = subject == target_collection.owner;1860 let exists = <AdminList<T>>::contains_key(collection_id);18611862 if !result & exists {1863 if <AdminList<T>>::get(collection_id).contains(&subject) {1864 result = true1865 }1866 }18671868 result1869 }18701871 fn check_owner_or_admin_permissions(1872 collection_id: CollectionId,1873 subject: T::AccountId,1874 ) -> DispatchResult {1875 Self::collection_exists(collection_id)?;1876 let result = Self::is_owner_or_admin_permissions(collection_id, subject.clone());18771878 ensure!(1879 result,1880 Error::<T>::NoPermission1881 );1882 Ok(())1883 }18841885 fn owned_amount(1886 subject: T::AccountId,1887 collection_id: CollectionId,1888 item_id: TokenId,1889 ) -> Option<u128> {1890 let target_collection = <Collection<T>>::get(collection_id);18911892 match target_collection.mode {1893 CollectionMode::NFT => {1894 if <NftItemList<T>>::get(collection_id, item_id).owner == subject {1895 return Some(1)1896 }1897 None1898 },1899 CollectionMode::Fungible(_) => {1900 if <FungibleItemList<T>>::contains_key(collection_id, &subject) {1901 return Some(<FungibleItemList<T>>::get(collection_id, &subject)1902 .value);1903 }1904 None1905 },1906 CollectionMode::ReFungible => <ReFungibleItemList<T>>::get(collection_id, item_id)1907 .owner1908 .iter()1909 .find(|i| i.owner == subject)1910 .map(|i| i.fraction),1911 CollectionMode::Invalid => None,1912 }1913 }19141915 fn is_item_owner(subject: T::AccountId, collection_id: CollectionId, item_id: TokenId) -> bool {1916 let target_collection = <Collection<T>>::get(collection_id);19171918 match target_collection.mode {1919 CollectionMode::NFT => {1920 <NftItemList<T>>::get(collection_id, item_id).owner == subject1921 }1922 CollectionMode::Fungible(_) => {1923 <FungibleItemList<T>>::contains_key(collection_id, &subject)1924 }1925 CollectionMode::ReFungible => {1926 <ReFungibleItemList<T>>::get(collection_id, item_id)1927 .owner1928 .iter()1929 .any(|i| i.owner == subject)1930 }1931 CollectionMode::Invalid => false,1932 }1933 }19341935 fn check_white_list(collection_id: CollectionId, address: &T::AccountId) -> DispatchResult {1936 let mes = Error::<T>::AddresNotInWhiteList;1937 ensure!(<WhiteList<T>>::contains_key(collection_id, address), mes);19381939 Ok(())1940 }19411942 /// Check if token exists. In case of Fungible, check if there is an entry for 1943 /// the owner in fungible balances double map1944 fn token_exists(1945 collection_id: CollectionId,1946 item_id: TokenId,1947 owner: &T::AccountId1948 ) -> DispatchResult {1949 let target_collection = <Collection<T>>::get(collection_id);1950 let exists = match target_collection.mode1951 {1952 CollectionMode::NFT => <NftItemList<T>>::contains_key(collection_id, item_id),1953 CollectionMode::Fungible(_) => <FungibleItemList<T>>::contains_key(collection_id, owner),1954 CollectionMode::ReFungible => <ReFungibleItemList<T>>::contains_key(collection_id, item_id),1955 _ => false1956 };19571958 ensure!(exists == true, Error::<T>::TokenNotFound);1959 Ok(())1960 }19611962 fn transfer_fungible(1963 collection_id: CollectionId,1964 value: u128,1965 owner: &T::AccountId,1966 recipient: &T::AccountId,1967 ) -> DispatchResult {1968 Self::token_exists(collection_id, 0, owner)?;19691970 let mut balance = <FungibleItemList<T>>::get(collection_id, owner);1971 ensure!(balance.value >= value, Error::<T>::TokenValueTooLow);19721973 // Send balance to recipient (updates balanceOf of recipient)1974 Self::add_fungible_item(collection_id, recipient, value)?;19751976 // update balanceOf of sender1977 <Balance<T>>::insert(collection_id, (*owner).clone(), balance.value - value);19781979 // Reduce or remove sender1980 if balance.value == value {1981 <FungibleItemList<T>>::remove(collection_id, owner);1982 }1983 else {1984 balance.value -= value;1985 <FungibleItemList<T>>::insert(collection_id, (*owner).clone(), balance);1986 }19871988 Ok(())1989 }19901991 fn transfer_refungible(1992 collection_id: CollectionId,1993 item_id: TokenId,1994 value: u128,1995 owner: T::AccountId,1996 new_owner: T::AccountId,1997 ) -> DispatchResult {1998 Self::token_exists(collection_id, item_id, &owner)?;19992000 let full_item = <ReFungibleItemList<T>>::get(collection_id, item_id);2001 let item = full_item2002 .owner2003 .iter()2004 .filter(|i| i.owner == owner)2005 .next()2006 .ok_or(Error::<T>::NumOverflow)?;2007 let amount = item.fraction;20082009 ensure!(amount >= value, Error::<T>::TokenValueTooLow);20102011 // update balance2012 let balance_old_owner = <Balance<T>>::get(collection_id, item.owner.clone())2013 .checked_sub(value)2014 .ok_or(Error::<T>::NumOverflow)?;2015 <Balance<T>>::insert(collection_id, item.owner.clone(), balance_old_owner);20162017 let balancenew_owner = <Balance<T>>::get(collection_id, new_owner.clone())2018 .checked_add(value)2019 .ok_or(Error::<T>::NumOverflow)?;2020 <Balance<T>>::insert(collection_id, new_owner.clone(), balancenew_owner);20212022 let old_owner = item.owner.clone();2023 let new_owner_has_account = full_item.owner.iter().any(|i| i.owner == new_owner);20242025 // transfer2026 if amount == value && !new_owner_has_account {2027 // change owner2028 // new owner do not have account2029 let mut new_full_item = full_item.clone();2030 new_full_item2031 .owner2032 .iter_mut()2033 .find(|i| i.owner == owner)2034 .unwrap()2035 .owner = new_owner.clone();2036 <ReFungibleItemList<T>>::insert(collection_id, item_id, new_full_item);20372038 // update index collection2039 Self::move_token_index(collection_id, item_id, &old_owner, &new_owner)?;2040 } else {2041 let mut new_full_item = full_item.clone();2042 new_full_item2043 .owner2044 .iter_mut()2045 .find(|i| i.owner == owner)2046 .unwrap()2047 .fraction -= value;20482049 // separate amount2050 if new_owner_has_account {2051 // new owner has account2052 new_full_item2053 .owner2054 .iter_mut()2055 .find(|i| i.owner == new_owner)2056 .unwrap()2057 .fraction += value;2058 } else {2059 // new owner do not have account2060 new_full_item.owner.push(Ownership {2061 owner: new_owner.clone(),2062 fraction: value,2063 });2064 Self::add_token_index(collection_id, item_id, &new_owner)?;2065 }20662067 <ReFungibleItemList<T>>::insert(collection_id, item_id, new_full_item);2068 }20692070 Ok(())2071 }20722073 fn transfer_nft(2074 collection_id: CollectionId,2075 item_id: TokenId,2076 sender: T::AccountId,2077 new_owner: T::AccountId,2078 ) -> DispatchResult {2079 Self::token_exists(collection_id, item_id, &sender)?;20802081 let mut item = <NftItemList<T>>::get(collection_id, item_id);20822083 ensure!(2084 sender == item.owner,2085 Error::<T>::MustBeTokenOwner2086 );20872088 // update balance2089 let balance_old_owner = <Balance<T>>::get(collection_id, item.owner.clone())2090 .checked_sub(1)2091 .ok_or(Error::<T>::NumOverflow)?;2092 <Balance<T>>::insert(collection_id, item.owner.clone(), balance_old_owner);20932094 let balancenew_owner = <Balance<T>>::get(collection_id, new_owner.clone())2095 .checked_add(1)2096 .ok_or(Error::<T>::NumOverflow)?;2097 <Balance<T>>::insert(collection_id, new_owner.clone(), balancenew_owner);20982099 // change owner2100 let old_owner = item.owner.clone();2101 item.owner = new_owner.clone();2102 <NftItemList<T>>::insert(collection_id, item_id, item);21032104 // update index collection2105 Self::move_token_index(collection_id, item_id, &old_owner, &new_owner)?;21062107 Ok(())2108 }2109 2110 fn set_re_fungible_variable_data(2111 collection_id: CollectionId,2112 item_id: TokenId,2113 data: Vec<u8>2114 ) -> DispatchResult {2115 let mut item = <ReFungibleItemList<T>>::get(collection_id, item_id);21162117 item.variable_data = data;21182119 <ReFungibleItemList<T>>::insert(collection_id, item_id, item);21202121 Ok(())2122 }21232124 fn set_nft_variable_data(2125 collection_id: CollectionId,2126 item_id: TokenId,2127 data: Vec<u8>2128 ) -> DispatchResult {2129 let mut item = <NftItemList<T>>::get(collection_id, item_id);2130 2131 item.variable_data = data;21322133 <NftItemList<T>>::insert(collection_id, item_id, item);2134 2135 Ok(())2136 }21372138 fn init_collection(item: &CollectionType<T::AccountId>) {2139 // check params2140 assert!(2141 item.decimal_points <= MAX_DECIMAL_POINTS,2142 "decimal_points parameter must be lower than MAX_DECIMAL_POINTS"2143 );2144 assert!(2145 item.name.len() <= 64,2146 "Collection name can not be longer than 63 char"2147 );2148 assert!(2149 item.name.len() <= 256,2150 "Collection description can not be longer than 255 char"2151 );2152 assert!(2153 item.token_prefix.len() <= 16,2154 "Token prefix can not be longer than 15 char"2155 );21562157 // Generate next collection ID2158 let next_id = CreatedCollectionCount::get()2159 .checked_add(1)2160 .unwrap();21612162 CreatedCollectionCount::put(next_id);2163 }21642165 fn init_nft_token(collection_id: CollectionId, item: &NftItemType<T::AccountId>) {2166 let current_index = <ItemListIndex>::get(collection_id)2167 .checked_add(1)2168 .unwrap();21692170 let item_owner = item.owner.clone();2171 Self::add_token_index(collection_id, current_index, &item.owner).unwrap();21722173 <ItemListIndex>::insert(collection_id, current_index);21742175 // Update balance2176 let new_balance = <Balance<T>>::get(collection_id, &item_owner)2177 .checked_add(1)2178 .unwrap();2179 <Balance<T>>::insert(collection_id, item_owner.clone(), new_balance);2180 }21812182 fn init_fungible_token(collection_id: CollectionId, owner: &T::AccountId, item: &FungibleItemType) {2183 let current_index = <ItemListIndex>::get(collection_id)2184 .checked_add(1)2185 .unwrap();21862187 Self::add_token_index(collection_id, current_index, owner).unwrap();21882189 <ItemListIndex>::insert(collection_id, current_index);21902191 // Update balance2192 let new_balance = <Balance<T>>::get(collection_id, owner)2193 .checked_add(item.value)2194 .unwrap();2195 <Balance<T>>::insert(collection_id, (*owner).clone(), new_balance);2196 }21972198 fn init_refungible_token(collection_id: CollectionId, item: &ReFungibleItemType<T::AccountId>) {2199 let current_index = <ItemListIndex>::get(collection_id)2200 .checked_add(1)2201 .unwrap();22022203 let value = item.owner.first().unwrap().fraction;2204 let owner = item.owner.first().unwrap().owner.clone();22052206 Self::add_token_index(collection_id, current_index, &owner).unwrap();22072208 <ItemListIndex>::insert(collection_id, current_index);22092210 // Update balance2211 let new_balance = <Balance<T>>::get(collection_id, &owner)2212 .checked_add(value)2213 .unwrap();2214 <Balance<T>>::insert(collection_id, owner.clone(), new_balance);2215 }22162217 fn add_token_index(collection_id: CollectionId, item_index: TokenId, owner: &T::AccountId) -> DispatchResult {22182219 // add to account limit2220 if <AccountItemCount<T>>::contains_key(owner) {22212222 // bound Owned tokens by a single address2223 let count = <AccountItemCount<T>>::get(owner);2224 ensure!(count < ChainLimit::get().account_token_ownership_limit, Error::<T>::AddressOwnershipLimitExceeded);22252226 <AccountItemCount<T>>::insert(owner.clone(), count2227 .checked_add(1)2228 .ok_or(Error::<T>::NumOverflow)?);2229 }2230 else {2231 <AccountItemCount<T>>::insert(owner.clone(), 1);2232 }22332234 let list_exists = <AddressTokens<T>>::contains_key(collection_id, owner);2235 if list_exists {2236 let mut list = <AddressTokens<T>>::get(collection_id, owner);2237 let item_contains = list.contains(&item_index.clone());22382239 if !item_contains {2240 list.push(item_index.clone());2241 }22422243 <AddressTokens<T>>::insert(collection_id, owner.clone(), list);2244 } else {2245 let mut itm = Vec::new();2246 itm.push(item_index.clone());2247 <AddressTokens<T>>::insert(collection_id, owner.clone(), itm);2248 }22492250 Ok(())2251 }22522253 fn remove_token_index(2254 collection_id: CollectionId,2255 item_index: TokenId,2256 owner: &T::AccountId,2257 ) -> DispatchResult {22582259 // update counter2260 <AccountItemCount<T>>::insert(owner.clone(), 2261 <AccountItemCount<T>>::get(owner)2262 .checked_sub(1)2263 .ok_or(Error::<T>::NumOverflow)?);226422652266 let list_exists = <AddressTokens<T>>::contains_key(collection_id, owner);2267 if list_exists {2268 let mut list = <AddressTokens<T>>::get(collection_id, owner);2269 let item_contains = list.contains(&item_index.clone());22702271 if item_contains {2272 list.retain(|&item| item != item_index);2273 <AddressTokens<T>>::insert(collection_id, owner.clone(), list);2274 }2275 }22762277 Ok(())2278 }22792280 fn move_token_index(2281 collection_id: CollectionId,2282 item_index: TokenId,2283 old_owner: &T::AccountId,2284 new_owner: &T::AccountId,2285 ) -> DispatchResult {2286 Self::remove_token_index(collection_id, item_index, old_owner)?;2287 Self::add_token_index(collection_id, item_index, new_owner)?;22882289 Ok(())2290 }2291 2292 fn ensure_contract_owned(account: T::AccountId, contract: &T::AccountId) -> DispatchResult {2293 if <ContractOwner<T>>::contains_key(contract.clone()) {2294 let owner = <ContractOwner<T>>::get(contract);2295 ensure!(account == owner, Error::<T>::NoPermission);2296 } else {2297 fail!(Error::<T>::NoPermission);2298 }22992300 Ok(())2301 }2302}23032304////////////////////////////////////////////////////////////////////////////////////////////////////2305// Economic models2306// #region23072308/// Fee multiplier.2309pub type Multiplier = FixedU128;23102311type BalanceOf<T> = <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::Balance;23122313/// Require the transactor pay for themselves and maybe include a tip to gain additional priority2314/// in the queue.2315#[derive(Encode, Decode, Clone, Eq, PartialEq)]2316pub struct ChargeTransactionPayment<T: Config>(#[codec(compact)] BalanceOf<T>);23172318impl<T: Config + Send + Sync> sp_std::fmt::Debug 2319 for ChargeTransactionPayment<T>2320{2321 #[cfg(feature = "std")]2322 fn fmt(&self, f: &mut sp_std::fmt::Formatter) -> sp_std::fmt::Result {2323 write!(f, "ChargeTransactionPayment<{:?}>", self.0)2324 }2325 #[cfg(not(feature = "std"))]2326 fn fmt(&self, _: &mut sp_std::fmt::Formatter) -> sp_std::fmt::Result {2327 Ok(())2328 }2329}23302331impl<T: Config> ChargeTransactionPayment<T>2332where2333 T::Call: Dispatchable<Info=DispatchInfo, PostInfo=PostDispatchInfo> + IsSubType<Call<T>> + IsSubType<pallet_contracts::Call<T>>,2334 BalanceOf<T>: Send + Sync + From<u64> + FixedPointOperand,2335 T::AccountId: AsRef<[u8]>,2336 T::AccountId: UncheckedFrom<T::Hash>,2337{2338 fn traditional_fee(2339 len: usize,2340 info: &DispatchInfoOf<T::Call>,2341 tip: BalanceOf<T>,2342 ) -> BalanceOf<T>2343 where2344 T::Call: Dispatchable<Info = DispatchInfo>,2345 {2346 <transaction_payment::Module<T>>::compute_fee(len as u32, info, tip)2347 }23482349 fn get_priority(len: usize, info: &DispatchInfoOf<T::Call>, final_fee: BalanceOf<T>) -> TransactionPriority {2350 let weight_saturation = T::BlockWeights::get().max_block / info.weight.max(1);2351 let max_block_length = *T::BlockLength::get().max.get(DispatchClass::Normal);2352 let len_saturation = max_block_length as u64 / (len as u64).max(1);2353 let coefficient: BalanceOf<T> = weight_saturation2354 .min(len_saturation)2355 .saturated_into::<BalanceOf<T>>();2356 final_fee2357 .saturating_mul(coefficient)2358 .saturated_into::<TransactionPriority>()2359 }23602361 fn withdraw_fee(2362 &self,2363 who: &T::AccountId,2364 call: &T::Call,2365 info: &DispatchInfoOf<T::Call>,2366 len: usize,2367 ) -> Result<2368 (2369 BalanceOf<T>,2370 <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::LiquidityInfo,2371 ),2372 TransactionValidityError,2373 > {2374 let tip = self.0;23752376 // Set fee based on call type. Creating collection costs 1 Unique.2377 // All other transactions have traditional fees so far2378 // let fee = match call.is_sub_type() {2379 // Some(Call::create_collection(..)) => <BalanceOf<T>>::from(1_000_000_000),2380 // _ => Self::traditional_fee(len, info, tip), // Flat fee model, use only for testing purposes2381 // // _ => <BalanceOf<T>>::from(100)2382 // };2383 let fee = Self::traditional_fee(len, info, tip);23842385 // Only mess with balances if fee is not zero.2386 if fee.is_zero() {2387 return <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::withdraw_fee(who, call, info, fee, tip)2388 .map(|i| (fee, i));2389 }23902391 // Determine who is paying transaction fee based on ecnomic model2392 // Parse call to extract collection ID and access collection sponsor2393 let mut sponsor: T::AccountId = match IsSubType::<Call<T>>::is_sub_type(call) {2394 Some(Call::create_item(collection_id, _owner, _properties)) => {23952396 // sponsor timeout2397 let block_number = <system::Module<T>>::block_number() as T::BlockNumber;23982399 let limit = <Collection<T>>::get(collection_id).limits.sponsor_transfer_timeout;2400 let mut sponsored = true;2401 if <CreateItemBasket<T>>::contains_key((collection_id, &who)) {2402 let last_tx_block = <CreateItemBasket<T>>::get((collection_id, &who));2403 let limit_time = last_tx_block + limit.into();2404 if block_number <= limit_time {2405 sponsored = false;2406 }2407 }2408 if sponsored {2409 <CreateItemBasket<T>>::insert((collection_id, who.clone()), block_number);2410 }24112412 // check free create limit2413 if (<Collection<T>>::get(collection_id).limits.sponsored_data_size >= (_properties.len() as u32)) &&2414 (<Collection<T>>::get(collection_id).sponsor_confirmed) &&2415 (sponsored)2416 {2417 <Collection<T>>::get(collection_id).sponsor2418 } else {2419 T::AccountId::default()2420 }2421 }2422 Some(Call::transfer(_new_owner, collection_id, item_id, _value)) => {2423 2424 let mut sponsor_transfer = false;2425 if <Collection<T>>::get(collection_id).sponsor_confirmed {24262427 let collection_limits = <Collection<T>>::get(collection_id).limits;2428 let collection_mode = <Collection<T>>::get(collection_id).mode;2429 2430 // sponsor timeout2431 let block_number = <system::Module<T>>::block_number() as T::BlockNumber;2432 sponsor_transfer = match collection_mode {2433 CollectionMode::NFT => {2434 2435 // get correct limit2436 let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {2437 collection_limits.sponsor_transfer_timeout2438 } else {2439 ChainLimit::get().nft_sponsor_transfer_timeout2440 };2441 2442 let mut sponsored = true;2443 if <NftTransferBasket<T>>::contains_key(collection_id, item_id) {2444 let last_tx_block = <NftTransferBasket<T>>::get(collection_id, item_id);2445 let limit_time = last_tx_block + limit.into();2446 if block_number <= limit_time {2447 sponsored = false;2448 }2449 }2450 if sponsored {2451 <NftTransferBasket<T>>::insert(collection_id, item_id, block_number);2452 }24532454 sponsored2455 }2456 CollectionMode::Fungible(_) => {2457 2458 // get correct limit2459 let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {2460 collection_limits.sponsor_transfer_timeout2461 } else {2462 ChainLimit::get().fungible_sponsor_transfer_timeout2463 };2464 2465 let block_number = <system::Module<T>>::block_number() as T::BlockNumber;2466 let mut sponsored = true;2467 if <FungibleTransferBasket<T>>::contains_key(collection_id, who) {2468 let last_tx_block = <FungibleTransferBasket<T>>::get(collection_id, who);2469 let limit_time = last_tx_block + limit.into();2470 if block_number <= limit_time {2471 sponsored = false;2472 }2473 }2474 if sponsored {2475 <FungibleTransferBasket<T>>::insert(collection_id, who, block_number);2476 }24772478 sponsored2479 }2480 CollectionMode::ReFungible => {2481 2482 // get correct limit2483 let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {2484 collection_limits.sponsor_transfer_timeout2485 } else {2486 ChainLimit::get().refungible_sponsor_transfer_timeout2487 };2488 2489 let mut sponsored = true;2490 if <ReFungibleTransferBasket<T>>::contains_key(collection_id, item_id) {2491 let last_tx_block = <ReFungibleTransferBasket<T>>::get(collection_id, item_id);2492 let limit_time = last_tx_block + limit.into();2493 if block_number <= limit_time {2494 sponsored = false;2495 }2496 }2497 if sponsored {2498 <ReFungibleTransferBasket<T>>::insert(collection_id, item_id, block_number);2499 }25002501 sponsored2502 }2503 _ => {2504 false2505 },2506 };2507 }25082509 if !sponsor_transfer {2510 T::AccountId::default()2511 } else {2512 <Collection<T>>::get(collection_id).sponsor2513 }2514 }25152516 _ => T::AccountId::default(),2517 };25182519 // Sponsor smart contracts2520 sponsor = match IsSubType::<pallet_contracts::Call<T>>::is_sub_type(call) {25212522 // On instantiation: set the contract owner2523 Some(pallet_contracts::Call::instantiate(_endowment, _gas_limit, code_hash, _data, salt)) => {25242525 let new_contract_address = <pallet_contracts::Module<T>>::contract_address(2526 &who,2527 code_hash,2528 salt,2529 );2530 <ContractOwner<T>>::insert(new_contract_address.clone(), who.clone());25312532 T::AccountId::default()2533 },25342535 // When the contract is called, check if the sponsoring is enabled and pay fees from contract endowment if it is2536 Some(pallet_contracts::Call::call(dest, _value, _gas_limit, _data)) => {25372538 let called_contract: T::AccountId = T::Lookup::lookup((*dest).clone()).unwrap_or(T::AccountId::default());25392540 let owned_contract = <ContractOwner<T>>::contains_key(called_contract.clone())2541 && <ContractOwner<T>>::get(called_contract.clone()) == *who;2542 let white_list_enabled = <ContractWhiteListEnabled<T>>::contains_key(called_contract.clone()) && <ContractWhiteListEnabled<T>>::get(called_contract.clone());2543 2544 if !owned_contract && white_list_enabled {2545 if !<ContractWhiteList<T>>::contains_key(called_contract.clone(), who) {2546 return Err(InvalidTransaction::Call.into());2547 }2548 }25492550 let mut sponsor_transfer = false;2551 if <ContractSponsoringRateLimit<T>>::contains_key(called_contract.clone()) {2552 let last_tx_block = <ContractSponsorBasket<T>>::get((&called_contract, &who));2553 let block_number = <system::Module<T>>::block_number() as T::BlockNumber;2554 let rate_limit = <ContractSponsoringRateLimit<T>>::get(&called_contract);2555 let limit_time = last_tx_block + rate_limit;25562557 if block_number >= limit_time {2558 <ContractSponsorBasket<T>>::insert((called_contract.clone(), who.clone()), block_number);2559 sponsor_transfer = true;2560 }2561 } else {2562 sponsor_transfer = false;2563 }2564 2565 2566 let mut sp = T::AccountId::default();2567 if sponsor_transfer {2568 if <ContractSelfSponsoring<T>>::contains_key(called_contract.clone()) {2569 if <ContractSelfSponsoring<T>>::get(called_contract.clone()) {2570 sp = called_contract;2571 }2572 }2573 }25742575 sp2576 },25772578 _ => sponsor,2579 };25802581 let mut who_pays_fee: T::AccountId = sponsor.clone();2582 if sponsor == T::AccountId::default() {2583 who_pays_fee = who.clone();2584 }25852586 <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::withdraw_fee(&who_pays_fee, call, info, fee, tip)2587 .map(|i| (fee, i))2588 }2589}259025912592impl<T: Config + Send + Sync> SignedExtension2593 for ChargeTransactionPayment<T>2594where2595 BalanceOf<T>: Send + Sync + From<u64> + FixedPointOperand,2596 T::Call: Dispatchable<Info = DispatchInfo, PostInfo = PostDispatchInfo> + IsSubType<Call<T>> + IsSubType<pallet_contracts::Call<T>>,2597 T::AccountId: AsRef<[u8]>,2598 T::AccountId: UncheckedFrom<T::Hash>,2599{2600 const IDENTIFIER: &'static str = "ChargeTransactionPayment";2601 type AccountId = T::AccountId;2602 type Call = T::Call;2603 type AdditionalSigned = ();2604 type Pre = (2605 // tip2606 BalanceOf<T>,2607 // who pays fee2608 Self::AccountId,2609 // imbalance resulting from withdrawing the fee2610 <<T as transaction_payment::Config>::OnChargeTransaction as transaction_payment::OnChargeTransaction<T>>::LiquidityInfo,2611 );2612 fn additional_signed(&self) -> sp_std::result::Result<(), TransactionValidityError> {2613 Ok(())2614 }26152616 fn validate(2617 &self,2618 who: &Self::AccountId,2619 call: &Self::Call,2620 info: &DispatchInfoOf<Self::Call>,2621 len: usize,2622 ) -> TransactionValidity {2623 let (fee, _) = self.withdraw_fee(who, call, info, len)?;2624 Ok(ValidTransaction {2625 priority: Self::get_priority(len, info, fee),2626 ..Default::default()2627 })2628 }26292630 fn pre_dispatch(2631 self,2632 who: &Self::AccountId,2633 call: &Self::Call,2634 info: &DispatchInfoOf<Self::Call>,2635 len: usize,2636 ) -> Result<Self::Pre, TransactionValidityError> {2637 let (_fee, imbalance) = self.withdraw_fee(who, call, info, len)?;2638 Ok((self.0, who.clone(), imbalance))2639 }26402641 fn post_dispatch(2642 pre: Self::Pre,2643 info: &DispatchInfoOf<Self::Call>,2644 post_info: &PostDispatchInfoOf<Self::Call>,2645 len: usize,2646 _result: &DispatchResult,2647 ) -> Result<(), TransactionValidityError> {2648 let (tip, who, imbalance) = pre;2649 let actual_fee = transaction_payment::Module::<T>::compute_actual_fee(2650 len as u32,2651 info,2652 post_info,2653 tip,2654 );2655 <T as transaction_payment::Config>::OnChargeTransaction::correct_and_deposit_fee(&who, info, post_info, actual_fee, tip, imbalance)?;2656 Ok(())2657 }2658}26592660// #endregion