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| // SPDX-License-Identifier: MIT
// SPDX-FileCopyrightText: Copyright (C) 2022 Spanning Labs Inc.
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol";
import "@openzeppelin/contracts/token/ERC1155/extensions/IERC1155MetadataURI.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/Context.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "./ISpanningERC1155.sol";
import "../../SpanningUtils.sol";
import "../../ISpanningDelegate.sol";
import "../../Spanning.sol";
/**
* @dev Implementation of the basic standard multi-token.
* See https://eips.ethereum.org/EIPS/eip-1155
* Originally based on code by Enjin: https://github.com/enjin/erc-1155
*
* _Available since v3.1._
*/
contract SpanningERC1155 is
Spanning,
Context,
ERC165,
ISpanningERC1155,
IERC1155MetadataURI
{
using SpanningAddress for bytes32;
using Address for address;
using Strings for uint256;
// Mapping from token ID to account balances
mapping(uint256 => mapping(bytes32 => uint256)) private balances_;
// Mapping from account to operator approvals
mapping(bytes32 => mapping(bytes32 => bool)) private operatorApprovals_;
// Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json
string private uri_;
/**
* @dev See {_setURI}.
*/
constructor(string memory _uri, address _delegate) Spanning(_delegate) {
_setURI(_uri);
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC1155).interfaceId ||
interfaceId == type(IERC1155MetadataURI).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC1155MetadataURI-uri}.
*
* This implementation returns the same URI for *all* token types. It relies
* on the token type ID substitution mechanism
* https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
*
* Clients calling this function must replace the `\{id\}` substring with the
* actual token type ID.
*/
function uri(uint256) public view virtual override returns (string memory) {
return uri_;
}
/**
* @dev See {IERC1155-balanceOf}.
*
* Requirements:
*
* - `accountLegacyAddress` cannot be the zero address.
*/
function balanceOf(address accountLegacyAddress, uint256 id)
public
view
virtual
override
returns (uint256)
{
bytes32 accountAddress = getAddressFromLegacy(accountLegacyAddress);
return balanceOf(accountAddress, id);
}
function balanceOf(bytes32 account, uint256 id)
public
view
virtual
override
returns (uint256)
{
require(
account.valid(),
"ERC1155: balance query for the invalid address"
);
return balances_[id][account];
}
/**
* @dev See {IERC1155-balanceOfBatch}.
*
* Requirements:
*
* - `accounts` and `ids` must have the same length.
*/
function balanceOfBatch(
address[] memory accountsLegacyAddress,
uint256[] memory ids
) public view virtual override returns (uint256[] memory) {
require(
accountsLegacyAddress.length == ids.length,
"ERC1155: accounts and ids length mismatch"
);
uint256[] memory batchBalances = new uint256[](
accountsLegacyAddress.length
);
for (uint256 i = 0; i < accountsLegacyAddress.length; ++i) {
batchBalances[i] = balanceOf(accountsLegacyAddress[i], ids[i]);
}
return batchBalances;
}
function balanceOfBatch(bytes32[] memory accounts, uint256[] memory ids)
public
view
virtual
override
returns (uint256[] memory)
{
require(
accounts.length == ids.length,
"ERC1155: accounts and ids length mismatch"
);
uint256[] memory batchBalances = new uint256[](accounts.length);
for (uint256 i = 0; i < accounts.length; ++i) {
batchBalances[i] = balanceOf(accounts[i], ids[i]);
}
return batchBalances;
}
/**
* @dev See {IERC1155-setApprovalForAll}.
*/
function setApprovalForAll(address receiverLegacyAddress, bool approved)
public
virtual
override
{
bytes32 receiverAddress = getAddressFromLegacy(receiverLegacyAddress);
setApprovalForAll(receiverAddress, approved);
}
/**
* @dev See {IERC1155-setApprovalForAll}.
*/
function setApprovalForAll(bytes32 receiverAddress, bool approved)
public
virtual
override
{
bytes32 spanningMsgSender = spanningMsgSender();
_setApprovalForAll(spanningMsgSender, receiverAddress, approved);
}
/**
* @dev See {IERC1155-isApprovedForAll}.
*/
function isApprovedForAll(
address senderLegacyAddress,
address receiverLegacyAddress
) public view virtual override returns (bool) {
bytes32 senderAddress = getAddressFromLegacy(senderLegacyAddress);
bytes32 receiverAddress = getAddressFromLegacy(receiverLegacyAddress);
return isApprovedForAll(senderAddress, receiverAddress);
}
/**
* @dev See {IERC1155-isApprovedForAll}.
*/
function isApprovedForAll(bytes32 senderAddress, bytes32 receiverAddress)
public
view
virtual
override
returns (bool)
{
return operatorApprovals_[senderAddress][receiverAddress];
}
/**
* @dev See {IERC1155-safeTransferFrom}.
*/
function safeTransferFrom(
address senderLegacyAddress,
address receiverLegacyAddress,
uint256 id,
uint256 amount,
bytes memory data
) public virtual override {
bytes32 senderAddress = getAddressFromLegacy(senderLegacyAddress);
bytes32 receiverAddress = getAddressFromLegacy(receiverLegacyAddress);
safeTransferFrom(senderAddress, receiverAddress, id, amount, data);
}
/**
* @dev See {IERC1155-safeTransferFrom}.
*/
function safeTransferFrom(
bytes32 senderAddress,
bytes32 receiverAddress,
uint256 id,
uint256 amount,
bytes memory data
) public virtual override {
bytes32 spanningMsgSender = spanningMsgSender();
require(
senderAddress == spanningMsgSender ||
isApprovedForAll(senderAddress, spanningMsgSender),
"ERC1155: caller is not owner nor approved"
);
_safeTransferFrom(senderAddress, receiverAddress, id, amount, data);
}
/**
* @dev See {IERC1155-safeBatchTransferFrom}.
*/
function safeBatchTransferFrom(
address senderLegacyAddress,
address receiverLegacyAddress,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) public virtual override {
bytes32 senderAddress = getAddressFromLegacy(senderLegacyAddress);
bytes32 receiverAddress = getAddressFromLegacy(receiverLegacyAddress);
safeBatchTransferFrom(
senderAddress,
receiverAddress,
ids,
amounts,
data
);
}
/**
* @dev See {IERC1155-safeBatchTransferFrom}.
*/
function safeBatchTransferFrom(
bytes32 senderAddress,
bytes32 receiverAddress,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) public virtual override {
bytes32 spanningMsgSender = spanningMsgSender();
require(
senderAddress == spanningMsgSender ||
isApprovedForAll(senderAddress, spanningMsgSender),
"ERC1155: caller is not owner nor approved"
);
_safeBatchTransferFrom(
senderAddress,
receiverAddress,
ids,
amounts,
data
);
}
function _safeTransferFrom(
bytes32 senderAddress,
bytes32 receiverAddress,
uint256 id,
uint256 amount,
bytes memory data
) internal virtual {
require(
receiverAddress.valid(),
"ERC1155: transfer to the zero address"
);
address derivedSenderLegacyAddress = _msgSender();
uint256[] memory ids = _asSingletonArray(id);
uint256[] memory amounts = _asSingletonArray(amount);
bytes32 derivedSenderAddress = spanningMsgSender();
_beforeTokenTransfer(
derivedSenderAddress,
senderAddress,
receiverAddress,
ids,
amounts,
data
);
uint256 fromBalance = balances_[id][senderAddress];
require(
fromBalance >= amount,
"ERC1155: insufficient balance for transfer"
);
unchecked {
balances_[id][senderAddress] = fromBalance - amount;
}
balances_[id][receiverAddress] += amount;
emit SpanningTransferSingle(
derivedSenderAddress,
senderAddress,
receiverAddress,
id,
amount
);
emit TransferSingle(
derivedSenderLegacyAddress,
getLegacyFromAddress(senderAddress),
getLegacyFromAddress(receiverAddress),
id,
amount
);
_afterTokenTransfer(
derivedSenderAddress,
senderAddress,
receiverAddress,
ids,
amounts,
data
);
_doSafeTransferAcceptanceCheck(
derivedSenderAddress,
senderAddress,
receiverAddress,
id,
amount,
data
);
}
function _safeBatchTransferFrom(
bytes32 senderAddress,
bytes32 receiverAddress,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {
require(
ids.length == amounts.length,
"ERC1155: ids and amounts length mismatch"
);
require(
receiverAddress.valid(),
"ERC1155: transfer to the zero address"
);
address derivedSenderLegacyAddress = _msgSender();
bytes32 derivedSenderAddress = spanningMsgSender();
_beforeTokenTransfer(
derivedSenderAddress,
senderAddress,
receiverAddress,
ids,
amounts,
data
);
for (uint256 i = 0; i < ids.length; ++i) {
uint256 id = ids[i];
uint256 amount = amounts[i];
uint256 fromBalance = balances_[id][senderAddress];
require(
fromBalance >= amount,
"ERC1155: insufficient balance for transfer"
);
unchecked {
balances_[id][senderAddress] = fromBalance - amount;
}
balances_[id][receiverAddress] += amount;
}
emit SpanningTransferBatch(
derivedSenderAddress,
senderAddress,
receiverAddress,
ids,
amounts
);
emit TransferBatch(
derivedSenderLegacyAddress,
getLegacyFromAddress(senderAddress),
getLegacyFromAddress(receiverAddress),
ids,
amounts
);
_afterTokenTransfer(
derivedSenderAddress,
senderAddress,
receiverAddress,
ids,
amounts,
data
);
_doSafeBatchTransferAcceptanceCheck(
derivedSenderAddress,
senderAddress,
receiverAddress,
ids,
amounts,
data
);
}
/**
* @dev Sets a new URI for all token types, by relying on the token type ID
* substitution mechanism
* https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
*
* By this mechanism, any occurrence of the `\{id\}` substring in either the
* URI or any of the amounts in the JSON file at said URI will be replaced by
* clients with the token type ID.
*
* For example, the `https://token-cdn-domain/\{id\}.json` URI would be
* interpreted by clients as
* `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json`
* for token type ID 0x4cce0.
*
* See {uri}.
*
* Because these URIs cannot be meaningfully represented by the {URI} event,
* this function emits no events.
*/
function _setURI(string memory newuri) internal virtual {
uri_ = newuri;
}
/**
* @dev Creates `amount` tokens of token type `id`, and assigns them to `receiverAddress`.
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `receiverAddress` cannot be the zero address.
* - If `receiverAddress` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
* acceptance magic value.
*/
function _mint(
bytes32 receiverAddress,
uint256 id,
uint256 amount,
bytes memory data
) internal virtual {
require(
receiverAddress != bytes32(0),
"ERC1155: mint to the zero address"
);
address derivedSenderLegacyAddress = _msgSender();
bytes32 derivedSenderAddress = spanningMsgSender();
uint256[] memory ids = _asSingletonArray(id);
uint256[] memory amounts = _asSingletonArray(amount);
_beforeTokenTransfer(
derivedSenderAddress,
bytes32(0),
receiverAddress,
ids,
amounts,
data
);
balances_[id][receiverAddress] += amount;
emit SpanningTransferSingle(
derivedSenderAddress,
derivedSenderAddress,
receiverAddress,
id,
amount
);
emit TransferSingle(
derivedSenderLegacyAddress,
address(0),
getLegacyFromAddress(receiverAddress),
id,
amount
);
_afterTokenTransfer(
derivedSenderAddress,
bytes32(0),
receiverAddress,
ids,
amounts,
data
);
_doSafeTransferAcceptanceCheck(
derivedSenderAddress,
bytes32(0),
receiverAddress,
id,
amount,
data
);
}
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}.
*
* Requirements:
*
* - `ids` and `amounts` must have the same length.
* - If `receiverAddress` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
* acceptance magic value.
*/
function _mintBatch(
bytes32 receiverAddress,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {
require(
receiverAddress != bytes32(0),
"ERC1155: mint to the zero address"
);
require(
ids.length == amounts.length,
"ERC1155: ids and amounts length mismatch"
);
address derivedSenderLegacyAddress = _msgSender();
bytes32 derivedSenderAddress = spanningMsgSender();
_beforeTokenTransfer(
derivedSenderAddress,
bytes32(0),
receiverAddress,
ids,
amounts,
data
);
for (uint256 i = 0; i < ids.length; i++) {
balances_[ids[i]][receiverAddress] += amounts[i];
}
emit SpanningTransferBatch(
derivedSenderAddress,
derivedSenderAddress,
receiverAddress,
ids,
amounts
);
emit TransferBatch(
derivedSenderLegacyAddress,
derivedSenderLegacyAddress,
getLegacyFromAddress(receiverAddress),
ids,
amounts
);
_afterTokenTransfer(
derivedSenderAddress,
bytes32(0),
receiverAddress,
ids,
amounts,
data
);
_doSafeBatchTransferAcceptanceCheck(
derivedSenderAddress,
bytes32(0),
receiverAddress,
ids,
amounts,
data
);
}
/**
* @dev Destroys `amount` tokens of token type `id` from `senderAddress`
*
* Requirements:
*
* - `senderAddress` cannot be the zero address.
* - `senderAddress` must have at least `amount` tokens of token type `id`.
*/
function _burn(
bytes32 senderAddress,
uint256 id,
uint256 amount
) internal virtual {
require(
senderAddress != bytes32(0),
"ERC1155: burn from the zero address"
);
address derivedSenderLegacyAddress = _msgSender();
bytes32 derivedSenderAddress = spanningMsgSender();
uint256[] memory ids = _asSingletonArray(id);
uint256[] memory amounts = _asSingletonArray(amount);
_beforeTokenTransfer(
derivedSenderAddress,
senderAddress,
bytes32(0),
ids,
amounts,
""
);
uint256 fromBalance = balances_[id][senderAddress];
require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
unchecked {
balances_[id][senderAddress] = fromBalance - amount;
}
emit SpanningTransferBatch(
derivedSenderAddress,
derivedSenderAddress,
bytes32(0),
ids,
amounts
);
emit TransferSingle(
derivedSenderLegacyAddress,
getLegacyFromAddress(senderAddress),
address(0),
id,
amount
);
_afterTokenTransfer(
derivedSenderAddress,
senderAddress,
bytes32(0),
ids,
amounts,
""
);
}
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}.
*
* Requirements:
*
* - `ids` and `amounts` must have the same length.
*/
function _burnBatch(
bytes32 senderAddress,
uint256[] memory ids,
uint256[] memory amounts
) internal virtual {
require(
senderAddress != bytes32(0),
"ERC1155: burn from the zero address"
);
require(
ids.length == amounts.length,
"ERC1155: ids and amounts length mismatch"
);
address derivedSenderLegacyAddress = _msgSender();
bytes32 derivedSenderAddress = spanningMsgSender();
_beforeTokenTransfer(
derivedSenderAddress,
senderAddress,
bytes32(0),
ids,
amounts,
""
);
for (uint256 i = 0; i < ids.length; i++) {
uint256 id = ids[i];
uint256 amount = amounts[i];
uint256 fromBalance = balances_[id][senderAddress];
require(
fromBalance >= amount,
"ERC1155: burn amount exceeds balance"
);
unchecked {
balances_[id][senderAddress] = fromBalance - amount;
}
}
emit SpanningTransferBatch(
derivedSenderAddress,
derivedSenderAddress,
bytes32(0),
ids,
amounts
);
emit TransferBatch(
derivedSenderLegacyAddress,
getLegacyFromAddress(senderAddress),
address(0),
ids,
amounts
);
_afterTokenTransfer(
derivedSenderAddress,
senderAddress,
bytes32(0),
ids,
amounts,
""
);
}
/**
* @dev Approve `receiverAddress` to operate on all of `senderAddress` tokens
*
* Emits a {ApprovalForAll} event.
*/
function _setApprovalForAll(
bytes32 senderAddress,
bytes32 receiverAddress,
bool approved
) internal virtual {
require(
senderAddress != receiverAddress,
"ERC1155: setting approval status for self"
);
operatorApprovals_[senderAddress][receiverAddress] = approved;
emit SpanningApprovalForAll(senderAddress, receiverAddress, approved);
emit ApprovalForAll(
getLegacyFromAddress(senderAddress),
getLegacyFromAddress(receiverAddress),
approved
);
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning, as well as batched variants.
*
* The same hook is called on both single and batched variants. For single
* transfers, the length of the `id` and `amount` arrays will be 1.
*
* Calling conditions (for each `id` and `amount` pair):
*
* - When `senderAddress` and `receiverAddress` are both non-zero, `amount` of `senderAddress`'s tokens
* of token type `id` will be transferred to `receiverAddress`.
* - When `senderAddress` is zero, `amount` tokens of token type `id` will be minted
* for `receiverAddress`.
* - when `receiverAddress` is zero, `amount` of `senderAddress`'s tokens of token type `id`
* will be burned.
* - `senderAddress` and `receiverAddress` are never both zero.
* - `ids` and `amounts` have the same, non-zero length.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
bytes32 operator,
bytes32 senderAddress,
bytes32 receiverAddress,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {}
/**
* @dev Hook that is called after any token transfer. This includes minting
* and burning, as well as batched variants.
*
* The same hook is called on both single and batched variants. For single
* transfers, the length of the `id` and `amount` arrays will be 1.
*
* Calling conditions (for each `id` and `amount` pair):
*
* - When `senderAddress` and `receiverAddress` are both non-zero, `amount` of `senderAddress`'s tokens
* of token type `id` will be transferred to `receiverAddress`.
* - When `senderAddress` is zero, `amount` tokens of token type `id` will be minted
* for `receiverAddress`.
* - when `receiverAddress` is zero, `amount` of `senderAddress`'s tokens of token type `id`
* will be burned.
* - `senderAddress` and `receiverAddress` are never both zero.
* - `ids` and `amounts` have the same, non-zero length.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
bytes32 operator,
bytes32 senderAddress,
bytes32 receiverAddress,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {}
function _doSafeTransferAcceptanceCheck(
bytes32 operator,
bytes32 senderAddress,
bytes32 receiverAddress,
uint256 id,
uint256 amount,
bytes memory data
) private {
address senderLegacyAddress = getLegacyFromAddress(senderAddress);
address receiverLegacyAddress = getLegacyFromAddress(receiverAddress);
if (
receiverLegacyAddress.isContract() &&
getDomainFromAddress(receiverAddress) == getDomain()
) {
try
IERC1155Receiver(receiverLegacyAddress).onERC1155Received(
getLegacyFromAddress(operator),
senderLegacyAddress,
id,
amount,
data
)
returns (bytes4 response) {
if (response != IERC1155Receiver.onERC1155Received.selector) {
revert("ERC1155: ERC1155Receiver rejected tokens");
}
} catch Error(string memory reason) {
revert(reason);
} catch {
revert("ERC1155: transfer to non ERC1155Receiver implementer");
}
}
}
function _doSafeBatchTransferAcceptanceCheck(
bytes32 operator,
bytes32 senderAddress,
bytes32 receiverAddress,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) private {
address senderLegacyAddress = getLegacyFromAddress(senderAddress);
address toLegacyAddress = getLegacyFromAddress(receiverAddress);
if (
toLegacyAddress.isContract() &&
getDomainFromAddress(receiverAddress) == getDomain()
) {
try
IERC1155Receiver(toLegacyAddress).onERC1155BatchReceived(
getLegacyFromAddress(operator),
senderLegacyAddress,
ids,
amounts,
data
)
returns (bytes4 response) {
if (
response != IERC1155Receiver.onERC1155BatchReceived.selector
) {
revert("ERC1155: ERC1155Receiver rejected tokens");
}
} catch Error(string memory reason) {
revert(reason);
} catch {
revert("ERC1155: transfer to non ERC1155Receiver implementer");
}
}
}
function _asSingletonArray(uint256 element)
private
pure
returns (uint256[] memory)
{
uint256[] memory array = new uint256[](1);
array[0] = element;
return array;
}
}
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