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Add CreateOrigin to Assets Pallet (#12586)

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* add CreateOrigin to Assets pallet

* fix asset-tx-payment test

* use AccountId > u64 in test

* Update frame/assets/src/benchmarking.rs

Co-authored-by: Jegor Sidorenko <5252494+jsidorenko@users.noreply.github.com>

Co-authored-by: Jegor Sidorenko <5252494+jsidorenko@users.noreply.github.com>
This commit is contained in:
joe petrowski
2022-11-09 20:59:40 +01:00
committed by GitHub
parent fa33efedcb
commit 11a01e89e3
6 changed files with 29 additions and 15 deletions
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substrate/frame/assets/src/lib.rs
+18 -9
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@@ -36,15 +36,15 @@
//!
//! ### Terminology
//!
//! * **Admin**: An account ID uniquely privileged to be able to unfreeze (thaw) an account and it's
//! * **Admin**: An account ID uniquely privileged to be able to unfreeze (thaw) an account and its
//! assets, as well as forcibly transfer a particular class of assets between arbitrary accounts
//! and reduce the balance of a particular class of assets of arbitrary accounts.
//! * **Asset issuance/minting**: The creation of a new asset, whose total supply will belong to the
//! account that issues the asset. This is a privileged operation.
//! account designated as the beneficiary of the asset. This is a privileged operation.
//! * **Asset transfer**: The reduction of the balance of an asset of one account with the
//! corresponding increase in the balance of another.
//! * **Asset destruction**: The process of reduce the balance of an asset of one account. This is a
//! privileged operation.
//! * **Asset destruction**: The process of reducing the balance of an asset of one account. This is
//! a privileged operation.
//! * **Fungible asset**: An asset whose units are interchangeable.
//! * **Issuer**: An account ID uniquely privileged to be able to mint a particular class of assets.
//! * **Freezer**: An account ID uniquely privileged to be able to freeze an account from
@@ -63,12 +63,12 @@
//!
//! The assets system in Substrate is designed to make the following possible:
//!
//! * Issue a new assets in a permissioned or permissionless way, if permissionless, then with a
//! * Issue new assets in a permissioned or permissionless way, if permissionless, then with a
//! deposit required.
//! * Allow accounts to be delegated the ability to transfer assets without otherwise existing
//! on-chain (*approvals*).
//! * Move assets between accounts.
//! * Update the asset's total supply.
//! * Update an asset class's total supply.
//! * Allow administrative activities by specially privileged accounts including freezing account
//! balances and minting/burning assets.
//!
@@ -92,6 +92,7 @@
//! * `force_cancel_approval`: Rescind a previous approval.
//!
//! ### Privileged Functions
//!
//! * `destroy`: Destroys an entire asset class; called by the asset class's Owner.
//! * `mint`: Increases the asset balance of an account; called by the asset class's Issuer.
//! * `burn`: Decreases the asset balance of an account; called by the asset class's Admin.
@@ -156,7 +157,7 @@ use frame_support::{
traits::{
tokens::{fungibles, DepositConsequence, WithdrawConsequence},
BalanceStatus::Reserved,
Currency, ReservableCurrency, StoredMap,
Currency, EnsureOriginWithArg, ReservableCurrency, StoredMap,
},
};
use frame_system::Config as SystemConfig;
@@ -206,6 +207,14 @@ pub mod pallet {
/// The currency mechanism.
type Currency: ReservableCurrency<Self::AccountId>;
/// Standard asset class creation is only allowed if the origin attempting it and the
/// asset class are in this set.
type CreateOrigin: EnsureOriginWithArg<
Self::RuntimeOrigin,
Self::AssetId,
Success = Self::AccountId,
>;
/// The origin which may forcibly create or destroy an asset or otherwise alter privileged
/// attributes.
type ForceOrigin: EnsureOrigin<Self::RuntimeOrigin>;
@@ -485,7 +494,7 @@ pub mod pallet {
///
/// This new asset class has no assets initially and its owner is the origin.
///
/// The origin must be Signed and the sender must have sufficient funds free.
/// The origin must conform to the configured `CreateOrigin` and have sufficient funds free.
///
/// Funds of sender are reserved by `AssetDeposit`.
///
@@ -507,7 +516,7 @@ pub mod pallet {
admin: AccountIdLookupOf<T>,
min_balance: T::Balance,
) -> DispatchResult {
let owner = ensure_signed(origin)?;
let owner = T::CreateOrigin::ensure_origin(origin, &id)?;
let admin = T::Lookup::lookup(admin)?;
ensure!(!Asset::<T, I>::contains_key(id), Error::<T, I>::InUse);