Contract Name:
NFT_Marketplace
Contract Source Code:
File 1 of 1 : NFT_Marketplace
// SPDX-License-Identifier: MIT
// File: contracts/utils/introspection/IERC165.sol
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: contracts/token/ERC1155/IERC1155.sol
pragma solidity ^0.8.0;
/**
* @dev Required interface of an ERC1155 compliant contract, as defined in the
* https://eips.ethereum.org/EIPS/eip-1155[EIP].
*
* _Available since v3.1._
*/
interface IERC1155 is IERC165 {
/**
* @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
*/
event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);
/**
* @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
* transfers.
*/
event TransferBatch(
address indexed operator,
address indexed from,
address indexed to,
uint256[] ids,
uint256[] values
);
/**
* @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
* `approved`.
*/
event ApprovalForAll(address indexed account, address indexed operator, bool approved);
/**
* @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
*
* If an {URI} event was emitted for `id`, the standard
* https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
* returned by {IERC1155MetadataURI-uri}.
*/
event URI(string value, uint256 indexed id);
/**
* @dev Returns the amount of tokens of token type `id` owned by `account`.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function balanceOf(address account, uint256 id) external view returns (uint256);
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
*
* Requirements:
*
* - `accounts` and `ids` must have the same length.
*/
function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
external
view
returns (uint256[] memory);
/**
* @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
*
* Emits an {ApprovalForAll} event.
*
* Requirements:
*
* - `operator` cannot be the caller.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address account, address operator) external view returns (bool);
/* function ownerOf(uint256 id) external view returns (address); */
/**
* @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}.
* - `from` must have a balance of tokens of type `id` of at least `amount`.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
* acceptance magic value.
*/
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes calldata data
) external;
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
*
* Emits a {TransferBatch} event.
*
* Requirements:
*
* - `ids` and `amounts` must have the same length.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
* acceptance magic value.
*/
function safeBatchTransferFrom(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata amounts,
bytes calldata data
) external;
}
// File: contracts/token/ERC1155/IERC1155Receiver.sol
pragma solidity ^0.8.0;
/**
* @dev _Available since v3.1._
*/
interface IERC1155Receiver is IERC165 {
/**
@dev Handles the receipt of a single ERC1155 token type. This function is
called at the end of a `safeTransferFrom` after the balance has been updated.
To accept the transfer, this must return
`bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
(i.e. 0xf23a6e61, or its own function selector).
@param operator The address which initiated the transfer (i.e. msg.sender)
@param from The address which previously owned the token
@param id The ID of the token being transferred
@param value The amount of tokens being transferred
@param data Additional data with no specified format
@return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
*/
function onERC1155Received(
address operator,
address from,
uint256 id,
uint256 value,
bytes calldata data
) external returns (bytes4);
/**
@dev Handles the receipt of a multiple ERC1155 token types. This function
is called at the end of a `safeBatchTransferFrom` after the balances have
been updated. To accept the transfer(s), this must return
`bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
(i.e. 0xbc197c81, or its own function selector).
@param operator The address which initiated the batch transfer (i.e. msg.sender)
@param from The address which previously owned the token
@param ids An array containing ids of each token being transferred (order and length must match values array)
@param values An array containing amounts of each token being transferred (order and length must match ids array)
@param data Additional data with no specified format
@return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
*/
function onERC1155BatchReceived(
address operator,
address from,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
) external returns (bytes4);
}
// File: contracts/token/ERC1155/extensions/IERC1155MetadataURI.sol
pragma solidity ^0.8.0;
/**
* @dev Interface of the optional ERC1155MetadataExtension interface, as defined
* in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP].
*
* _Available since v3.1._
*/
interface IERC1155MetadataURI is IERC1155 {
/**
* @dev Returns the URI for token type `id`.
*
* If the `\{id\}` substring is present in the URI, it must be replaced by
* clients with the actual token type ID.
*/
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
function uri(uint256 id) external view returns (string memory);
}
// File: contracts/utils/Address.sol
pragma solidity ^0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: contracts/utils/Context.sol
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: contracts/utils/introspection/ERC165.sol
pragma solidity ^0.8.0;
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
// File: contracts/token/ERC1155/ERC1155.sol
pragma solidity ^0.8.0;
/* import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.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 ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI {
using Address for address;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to minter
mapping(uint256 => address) internal _tokenMinter;
// Mapping from token ID to creator
mapping(uint256 => address) internal _tokenCreator;
// Mapping from token ID to account balances
mapping(uint256 => mapping(address => uint256)) private _balances;
// Mapping from account to operator approvals
mapping(address => mapping(address => 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_) {
_setURI(uri_);
} */
/**
* @dev See {_setURI}.
*/
constructor(string memory uri_,string memory name_, string memory symbol_) {
_setURI(uri_);
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @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;
}
function minterOf(uint256 id) public view virtual returns (address) {
address tokenMinter = _tokenMinter[id];
require(tokenMinter != address(0), "ERC1155: owner query for nonexistent token");
return tokenMinter;
}
/* function ownerOf(uint256 id) public view virtual returns (address) {
address tokenOwner = _tokenMinter[id];
require(tokenOwner != address(0), "ERC1155: owner query for nonexistent token");
return tokenOwner;
} */
function creatorOf(uint256 id) public view virtual returns (address) {
address creator = _tokenCreator[id];
require(creator != address(0), "ERC1155: creator query for nonexistent token");
return creator;
}
/**
* @dev See {IERC1155-balanceOf}.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function balanceOf(address account, uint256 id) public view virtual override returns (uint256) {
require(account != address(0), "ERC1155: balance query for the zero address");
return _balances[id][account];
}
/**
* @dev See {IERC1155-balanceOfBatch}.
*
* Requirements:
*
* - `accounts` and `ids` must have the same length.
*/
function balanceOfBatch(address[] 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 operator, bool approved) public virtual override {
require(_msgSender() != operator, "ERC1155: setting approval status for self");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
function setApproval(address account,address operator, bool approved) internal {
require(account != operator, "ERC1155: setting approval status for self");
_operatorApprovals[account][operator] = approved;
emit ApprovalForAll(account, operator, approved);
}
/**
* @dev See {IERC1155-isApprovedForAll}.
*/
function isApprovedForAll(address account, address operator) public view virtual override returns (bool) {
return _operatorApprovals[account][operator];
}
/**
* @dev See {IERC1155-transferFrom}.
*/
/* function transferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
) public {
require(isApprovedForAll(from, _msgSender()),
"ERC1155: caller is not owner nor approved"
);
_transferFrom(from, to, id, amount, data);
} */
/**
* @dev See {IERC1155-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
) public virtual override {
require(
from == _msgSender() || isApprovedForAll(from, _msgSender()),
"ERC1155: caller is not owner nor approved"
);
_safeTransferFrom(from, to, id, amount, data);
}
/**
* @dev See {IERC1155-safeBatchTransferFrom}.
*/
function safeBatchTransferFrom(
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) public virtual override {
require(
from == _msgSender() || isApprovedForAll(from, _msgSender()),
"ERC1155: transfer caller is not owner nor approved"
);
_safeBatchTransferFrom(from, to, ids, amounts, data);
}
/* function _transferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
) internal virtual {
require(to != address(0), "ERC1155: transfer to the zero address");
address operator = _msgSender();
_beforeTokenTransfer(operator, from, to, _asSingletonArray(id), _asSingletonArray(amount), data);
uint256 fromBalance = _balances[id][from];
require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
unchecked {
_balances[id][from] = fromBalance - amount;
}
_balances[id][to] += amount;
emit TransferSingle(operator, from, to, id, amount);
_doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data);
} */
/**
* @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `from` must have a balance of tokens of type `id` of at least `amount`.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
* acceptance magic value.
*/
function _safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
) internal virtual {
require(to != address(0), "ERC1155: transfer to the zero address");
address operator = _msgSender();
_beforeTokenTransfer(operator, from, to, _asSingletonArray(id), _asSingletonArray(amount), data);
uint256 fromBalance = _balances[id][from];
require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
unchecked {
_balances[id][from] = fromBalance - amount;
}
_balances[id][to] += amount;
emit TransferSingle(operator, from, to, id, amount);
_doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data);
}
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}.
*
* Emits a {TransferBatch} event.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
* acceptance magic value.
*/
function _safeBatchTransferFrom(
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {
require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
require(to != address(0), "ERC1155: transfer to the zero address");
address operator = _msgSender();
_beforeTokenTransfer(operator, from, to, ids, amounts, data);
for (uint256 i = 0; i < ids.length; ++i) {
uint256 id = ids[i];
uint256 amount = amounts[i];
uint256 fromBalance = _balances[id][from];
require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
unchecked {
_balances[id][from] = fromBalance - amount;
}
_balances[id][to] += amount;
}
emit TransferBatch(operator, from, to, ids, amounts);
_doSafeBatchTransferAcceptanceCheck(operator, from, to, 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 `account`.
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - If `account` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
* acceptance magic value.
*/
function _mint(
address account,
uint256 id,
uint256 amount,
bytes memory data
) internal virtual {
require(account != address(0), "ERC1155: mint to the zero address");
address operator = _msgSender();
_beforeTokenTransfer(operator, address(0), account, _asSingletonArray(id), _asSingletonArray(amount), data);
_balances[id][account] += amount;
emit TransferSingle(operator, address(0), account, id, amount);
_doSafeTransferAcceptanceCheck(operator, address(0), account, id, amount, data);
_tokenMinter[id] = account;
_tokenCreator[id] = account;
}
/* function _mint(
uint256 mint_type,
address creator,
address account,
uint256 id,
uint256 amount,
bytes memory data
) internal virtual {
require(account != address(0), "ERC1155: mint to the zero address");
address operator = _msgSender();
if(mint_type==2){
_beforeTokenTransfer(operator, creator, account, _asSingletonArray(id), _asSingletonArray(amount), data);
_balances[id][account] += amount;
emit TransferSingle(operator, creator, account, id, amount);
_doSafeTransferAcceptanceCheck(operator, creator, account, id, amount, data);
_tokenMinter[id] = creator;
}else if(mint_type==1){
_beforeTokenTransfer(operator, address(0), account, _asSingletonArray(id), _asSingletonArray(amount), data);
_balances[id][account] += amount;
emit TransferSingle(operator, address(0), account, id, amount);
_doSafeTransferAcceptanceCheck(operator, address(0), account, id, amount, data);
_tokenMinter[id] = creator;
}else{
_beforeTokenTransfer(operator, address(0), account, _asSingletonArray(id), _asSingletonArray(amount), data);
_balances[id][account] += amount;
emit TransferSingle(operator, address(0), account, id, amount);
_doSafeTransferAcceptanceCheck(operator, address(0), account, id, amount, data);
_tokenMinter[id] = account;
}
} */
function setCreator(address creator,address account,uint256 id) internal {
require(account == _tokenMinter[id], "ERC1155: not token owner");
_tokenCreator[id] = creator;
}
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}.
*
* Requirements:
*
* - `ids` and `amounts` must have the same length.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
* acceptance magic value.
*/
function _mintBatch(
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {
require(to != address(0), "ERC1155: mint to the zero address");
require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
address operator = _msgSender();
_beforeTokenTransfer(operator, address(0), to, ids, amounts, data);
for (uint256 i = 0; i < ids.length; i++) {
_balances[ids[i]][to] += amounts[i];
}
emit TransferBatch(operator, address(0), to, ids, amounts);
_doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data);
}
/**
* @dev Destroys `amount` tokens of token type `id` from `account`
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens of token type `id`.
*/
function _burn(
address account,
uint256 id,
uint256 amount
) internal virtual {
require(account != address(0), "ERC1155: burn from the zero address");
address operator = _msgSender();
_beforeTokenTransfer(operator, account, address(0), _asSingletonArray(id), _asSingletonArray(amount), "");
uint256 accountBalance = _balances[id][account];
require(accountBalance >= amount, "ERC1155: burn amount exceeds balance");
unchecked {
_balances[id][account] = accountBalance - amount;
}
emit TransferSingle(operator, account, address(0), id, amount);
}
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}.
*
* Requirements:
*
* - `ids` and `amounts` must have the same length.
*/
function _burnBatch(
address account,
uint256[] memory ids,
uint256[] memory amounts
) internal virtual {
require(account != address(0), "ERC1155: burn from the zero address");
require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
address operator = _msgSender();
_beforeTokenTransfer(operator, account, address(0), ids, amounts, "");
for (uint256 i = 0; i < ids.length; i++) {
uint256 id = ids[i];
uint256 amount = amounts[i];
uint256 accountBalance = _balances[id][account];
require(accountBalance >= amount, "ERC1155: burn amount exceeds balance");
unchecked {
_balances[id][account] = accountBalance - amount;
}
}
emit TransferBatch(operator, account, address(0), ids, amounts);
}
/**
* @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 `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* of token type `id` will be transferred to `to`.
* - When `from` is zero, `amount` tokens of token type `id` will be minted
* for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens of token type `id`
* will be burned.
* - `from` and `to` 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(
address operator,
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {}
function _doSafeTransferAcceptanceCheck(
address operator,
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
) private {
if (to.isContract()) {
try IERC1155Receiver(to).onERC1155Received(operator, from, 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(
address operator,
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) private {
if (to.isContract()) {
try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, 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;
}
/* function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
} */
}
// File: contracts/utils/math/SafeMath.sol
pragma solidity ^0.8.0;
// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.
/**
* @dev Wrappers over Solidity's arithmetic operations.
*
* NOTE: `SafeMath` is no longer needed starting with Solidity 0.8. The compiler
* now has built in overflow checking.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the substraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator.
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
// File: contracts/token/ERC20/IERC20.sol
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// File: contracts/token/ERC20/utils/SafeERC20.sol
pragma solidity ^0.8.0;
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(
IERC20 token,
address spender,
uint256 value
) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
uint256 newAllowance = token.allowance(address(this), spender) + value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
uint256 newAllowance = oldAllowance - value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
// Return data is optional
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
// File: contracts/NFT_Marketplace.sol
pragma solidity ^0.8.0;
contract NFT_Marketplace is ERC1155{
using SafeMath for uint256;
using SafeERC20 for IERC20;
address ContractOwner; // 컨트랙트 소유자
constructor() ERC1155("","BLUEBAY GALLERY","BBG") {
ContractOwner = msg.sender;
setting["main"] = adminSetting(0x34E366278EEfe4FEf648AC826528E38717FF900d,0,0x8C661806f716652B637728355cC4e2620D428F99); //플랫폼 지갑 주소, 수수료율,ERC20 주소
}
modifier onlyowner {
require(ContractOwner == msg.sender);
_;
}
struct NFTAsset {
string metadata;
address owner;
uint id;
uint amount;
uint price;
uint flag;
uint currency; //0-ETH 1-ERC20
}
struct adminSetting {
address platformAddr;
uint feeRate;
address tokenAddr;
}
mapping (string => adminSetting) setting;
mapping(address=> mapping(uint => NFTAsset)) public ownedNFT;
NFTAsset[] public nft_asset;
function getContractOwner() public view returns (address) {
return ContractOwner;
}
function transferOwnership(address newOwner) public onlyowner() {
require(newOwner != address(0), "Ownable: new owner is the zero address");
ContractOwner = newOwner;
}
function setChangeFee(uint256 _feeRate) public onlyowner() {
setting["main"].feeRate = _feeRate;
}
function setChangeAddr(address _platformAddr) public onlyowner() {
setting["main"].platformAddr = _platformAddr;
}
function setChangeTokenAddr(address _tokenAddr) public onlyowner() {
setting["main"].tokenAddr = _tokenAddr;
}
function setOwnedNFTFlag(address _owner,uint256 _tokenId,uint256 _flag) public onlyowner(){
require(_owner == ownedNFT[_owner][_tokenId].owner);
ownedNFT[_owner][_tokenId].flag = _flag;
}
function getFeeRate() public view returns(uint256){
return (setting["main"].feeRate);
}
function getPlatformAddr() public view returns(address){
return (setting["main"].platformAddr);
}
function getTokenAddr() public view returns(address){
return (setting["main"].tokenAddr);
}
function getOwnedNFTPrice(address _owner,uint256 _tokenId) public view returns(uint256){
require(_owner == ownedNFT[_owner][_tokenId].owner);
return (ownedNFT[_owner][_tokenId].price);
}
function getOwnedNFTCurrency(address _owner,uint256 _tokenId) public view returns(uint256){
require(_owner == ownedNFT[_owner][_tokenId].owner);
return (ownedNFT[_owner][_tokenId].currency);
}
function getPriceFeeIncluded(address _owner,uint256 _tokenId, uint256 _fee) public view returns(uint256){
require(_owner == ownedNFT[_owner][_tokenId].owner);
return (ownedNFT[_owner][_tokenId].price.add(_fee));
}
function getOwnedNFTFlag(address _owner,uint256 _tokenId) public view returns(uint256){
require(_owner == ownedNFT[_owner][_tokenId].owner);
return (ownedNFT[_owner][_tokenId].flag);
}
function getOwnedNFTMetadata(address _owner,uint256 _tokenId) public view returns(string memory){
require(_owner == nft_asset[_tokenId].owner,"No NFT owner");
return (nft_asset[_tokenId].metadata);
}
//ERC20
function getERC20Balance() public view returns (uint256){
uint256 balance = IERC20(getTokenAddr()).balanceOf(msg.sender);
return balance;
}
function getERC20Total() public view returns (uint256){
uint256 supply = IERC20(getTokenAddr()).totalSupply();
return supply;
}
//ERC20
//발행
function mint(string memory _metadata, uint256 _amount, uint256 _price, uint256 _currency) public {//이용자 발행
require(_currency < 2,"currency::Check");
uint256 assetId = nft_asset.length; // 유일한 작품 ID
nft_asset.push(NFTAsset(_metadata,msg.sender,assetId,_amount,_price,0,_currency));
ownedNFT[msg.sender][assetId]= NFTAsset(_metadata,msg.sender,assetId,_amount,_price,0,_currency);
_mint(msg.sender, assetId, _amount, ""); //ERC1155 등록
}
//이용자 경매 발행 추가 로열티 발행자로 등록
function mintTrade(string memory _metadata, uint256 _price, uint256 _currency) public payable {//관리자 발행 경매 구매, 개수 1개로 고정
require(_currency < 2,"currency::Check");
if(_currency==0){//ETH 구매
require(msg.value > 0);
require(msg.value >= _price);
uint256 assetId = nft_asset.length; // 유일한 작품 ID
nft_asset.push(NFTAsset(_metadata,msg.sender,assetId,1,_price,1,_currency));
ownedNFT[msg.sender][assetId]= NFTAsset(_metadata,msg.sender,assetId,1,_price,1,_currency);
_mint(msg.sender, assetId, 1, ""); //유저 NFT 소유권
setCreator(getPlatformAddr(),msg.sender,assetId);//로열티 발행자 플랫폼
if (msg.value > 0) {
payable(getPlatformAddr()).transfer(msg.value);//판매 비용 전액 플랫폼 지갑으로
}
}else if(_currency==1){//ERC20 구매
require(_price > 0);
uint256 assetId = nft_asset.length; // 유일한 작품 ID
nft_asset.push(NFTAsset(_metadata,msg.sender,assetId,1,_price,1,_currency));
ownedNFT[msg.sender][assetId]= NFTAsset(_metadata,msg.sender,assetId,1,_price,1,_currency);
_mint(msg.sender, assetId, 1, ""); //유저 NFT 소유권
setCreator(getPlatformAddr(),msg.sender,assetId);//로열티 발행자 플랫폼
IERC20(getTokenAddr()).transferFrom(msg.sender,getPlatformAddr(), _price); //판매 비용 전액 플랫폼 지갑으로
}
}
function mintAuction(address payable _owner,string memory _metadata, uint256 _fee, uint256 _price, uint256 _currency) public payable {//이용자 발행 경매 구매,개수 1개로 고정
require(_currency < 2,"currency::Check");
if(_currency==0){//ETH 구매
require(msg.value > 0);
require(msg.value >= _price);
uint256 assetId = nft_asset.length; // 유일한 작품 ID
nft_asset.push(NFTAsset(_metadata,msg.sender,assetId,1,_price,1,_currency));
ownedNFT[msg.sender][assetId]= NFTAsset(_metadata,msg.sender,assetId,1,_price,1,_currency);
_mint(msg.sender, assetId, 1, ""); //유저 NFT 소유권
setCreator(_owner,msg.sender,assetId);//로열티 발행자 이용자
if (msg.value > 0) {
platformFeeBuyer(_fee);//구매 수수료
platformFeeSeller(_owner,_fee);//판매 수수료
}
}else if(_currency==1){//ERC20 구매
require(_price > 0);
uint256 assetId = nft_asset.length; // 유일한 작품 ID
nft_asset.push(NFTAsset(_metadata,msg.sender,assetId,1,_price,1,_currency));
ownedNFT[msg.sender][assetId]= NFTAsset(_metadata,msg.sender,assetId,1,_price,1,_currency);
_mint(msg.sender, assetId, 1, ""); //유저 NFT 소유권
setCreator(_owner,msg.sender,assetId);//로열티 발행자 이용자
platformFeeBuyerToken(_fee);//구매 수수료
platformFeeSellerToken(_owner,_fee,_price);//판매 수수료
}
}
function mintCreator(string memory _metadata, uint256 _amount, uint256 _price, uint256 _currency) public {//관리자 발행 1차 판매
require(_currency < 2,"currency::Check");
uint256 assetId = nft_asset.length; // 유일한 작품 ID
nft_asset.push(NFTAsset(_metadata,msg.sender,assetId,_amount,_price,0,_currency));
ownedNFT[msg.sender][assetId]= NFTAsset(_metadata,msg.sender,assetId,_amount,_price,0,_currency);
_mint(msg.sender, assetId, _amount, ""); //유저 NFT 소유권
setCreator(getPlatformAddr(),msg.sender,assetId); //로열티 발행자 플랫폼
}
//발행
function priceChange(uint256 _tokenId, uint256 _amount, uint256 _price) public {//2차 판매 가격 변경
require(msg.sender == ownedNFT[msg.sender][_tokenId].owner);
require(ownedNFT[msg.sender][_tokenId].amount >= _amount);
require(ownedNFT[msg.sender][_tokenId].flag == 0);
ownedNFT[msg.sender][_tokenId].price = _price;
}
//구매
function buyNFT(address payable _owner,uint256 _tokenId, uint256 _amount,uint256 _fee, uint256 _price, uint256 _currency) public payable { //NFT 구매
require(_owner!=msg.sender);
require(getOwnedNFTFlag(_owner,_tokenId) == 0,"buy::Not for sale");
require(getOwnedNFTCurrency(_owner,_tokenId) == _currency,"buy::Currency does not match");
if(_currency==0){//ETH 구매
require(getPriceFeeIncluded(_owner, _tokenId, _fee).mul(_amount) <= msg.value, "buy::Must purchase the token for the correct price" );
setApproval(_owner,msg.sender, true);
platformFeeBuyer(_fee);//구매 수수료
platformFeeSeller(_owner,_fee);//판매 수수료
safeTransferFrom(_owner,msg.sender,_tokenId,_amount,"0x0");//소유권 이전
ownedNFT[msg.sender][_tokenId]= NFTAsset(getOwnedNFTMetadata(minterCheck(_tokenId),_tokenId),msg.sender,_tokenId,_amount,msg.value,1,_currency);
setApproval(_owner,msg.sender, false);
}else if(_currency==1){//ERC20 구매
require(getPriceFeeIncluded(_owner, _tokenId, _fee).mul(_amount) <= _price, "buy::Must purchase the token for the correct price" );
setApproval(_owner,msg.sender, true);
platformFeeBuyerToken(_fee);//구매 수수료
platformFeeSellerToken(_owner,_fee,_price);//판매 수수료
safeTransferFrom(_owner,msg.sender,_tokenId,_amount,"0x0");//소유권 이전
ownedNFT[msg.sender][_tokenId]= NFTAsset(getOwnedNFTMetadata(minterCheck(_tokenId),_tokenId),msg.sender,_tokenId,_amount,_price,1,_currency);
setApproval(_owner,msg.sender, false);
}
}
//구매
//ETH 결제
function platformFeeBuyer(uint256 _fee) public payable { //구매자 지급 수수료
if (msg.value > 0 && getFeeRate()>0) {
payable(getPlatformAddr()).transfer(_fee); //추가된 구매 수수료만 지급
}
}
function platformFeeSeller(address payable _owner,uint256 _fee) public payable { //판매자 수수료
if (msg.value > 0 && getFeeRate()>0) {
uint256 platformFeeSeller =(msg.value.sub(_fee)).mul(getFeeRate()).div(10000);
payable(getPlatformAddr()).transfer(platformFeeSeller);
paymentArtwork(_owner,calculateTotalFee(platformFeeSeller,_fee));//판매대금 지급
}else if(msg.value > 0 && getFeeRate()==0){ //수수료 제로
paymentArtwork(_owner,0);//판매대금 지급
}
}
function paymentArtwork(address payable _from,uint256 _totalFee) public payable { //판매대금 판매자 지급
if (msg.value > 0) {
_from.transfer(msg.value.sub(_totalFee));
}
}
//ETH 결제
function calculateTotalFee(uint256 _sellerFee,uint256 _buyerFee) public view returns(uint256) {
return (_sellerFee.add(_buyerFee));
}
//ERC20 결제
function platformFeeBuyerToken(uint256 _fee) public payable { //구매자 지급 수수료
if (getFeeRate()>0) {
IERC20(getTokenAddr()).transferFrom(msg.sender,getPlatformAddr(), _fee);
}
}
function platformFeeSellerToken(address payable _owner,uint256 _fee, uint256 _price) public payable { //판매자 수수료
if (getFeeRate()>0) {
uint256 platformFeeSeller =(_price.sub(_fee)).mul(getFeeRate()).div(10000);
IERC20(getTokenAddr()).transferFrom(msg.sender,getPlatformAddr(), platformFeeSeller);
paymentArtworkToken(_owner,calculateTotalFee(platformFeeSeller,_fee),_price);//판매대금 지급
}else if(getFeeRate()==0){ //수수료 제로
paymentArtworkToken(_owner,0,_price);//판매대금 지급
}
}
function paymentArtworkToken(address payable _from,uint256 _totalFee, uint256 _price) public payable { //판매대금 판매자 지급
if (getFeeRate()>0) {
IERC20(getTokenAddr()).transferFrom(msg.sender,_from, _price.sub(_totalFee));
}else if(getFeeRate()==0){ //수수료 제로
IERC20(getTokenAddr()).transferFrom(msg.sender,_from, _price);
}
}
//ERC20 결제
function burn(uint256 _tokenId, uint256 _amount) public {
require(msg.sender == creatorCheck(_tokenId));
_burn(msg.sender, _tokenId, _amount); //ERC1155 삭제
}
//RESELL 2차 구매
function reSellMint(uint256 _tokenId, uint256 _amount, uint256 _price) public {//client -> listing(2차판매)
require(msg.sender == ownedNFT[msg.sender][_tokenId].owner);
require(ownedNFT[msg.sender][_tokenId].amount >= _amount);
if(getOwnedNFTPrice(msg.sender, _tokenId)>_price){
ownedNFT[msg.sender][_tokenId].price = _price;
}
ownedNFT[msg.sender][_tokenId].flag = 2;
}
function reSellPriceChange(uint256 _tokenId, uint256 _amount, uint256 _price) public {//2차 판매 가격 변경
require(msg.sender == ownedNFT[msg.sender][_tokenId].owner);
require(ownedNFT[msg.sender][_tokenId].amount >= _amount);
require(ownedNFT[msg.sender][_tokenId].flag == 2);
ownedNFT[msg.sender][_tokenId].price = _price;
}
function reSellDelist(uint256 _tokenId) public {
require(msg.sender == ownedNFT[msg.sender][_tokenId].owner);
require(ownedNFT[msg.sender][_tokenId].flag != 0);
ownedNFT[msg.sender][_tokenId].flag = 1;
}
function reSellBuyNFT(address payable _owner,uint256 _tokenId, uint256 _amount, uint256 _royalRate,uint256 _fee,uint256 _price) public payable { //NFT 재판매 후 구매
require(_owner!=msg.sender);
require(msg.sender!=creatorOf(_tokenId),"resell::Cannot buy my NFT");
require(getOwnedNFTFlag(_owner,_tokenId) == 2,"resell::Not for sale");
require(_royalRate <= 1000,"resell::Royalty Check"); //최대 10%
require(ownedNFT[_owner][_tokenId].amount >= _amount ,"resell::Amount Check"); //추가
require(_amount == 1,"resell::Amount Check"); //추가
if(getFeeRate()==0){//추가
require(_fee==0,"resell::Fee Check"); //추가
}
if(getOwnedNFTCurrency(_owner,_tokenId)==0){//ETH 구매
require(getPriceFeeIncluded(_owner, _tokenId, _fee).mul(_amount) <= msg.value, "resell::Must purchase the token for the correct price" );
setApproval(_owner,msg.sender, true);
platformFeeBuyer(_fee);//구매 수수료
uint256 ownerRoyalty = (msg.value.sub(_fee)).mul(_royalRate).div(10000);
royalties(ownerRoyalty,_tokenId);//발행자 로열티
uint256 sellerCost = (msg.value - platformFeeReSeller(_fee)- ownerRoyalty);
reSellpayment(_owner,sellerCost);//판매 대금
ownedNFT[msg.sender][_tokenId]= NFTAsset(getOwnedNFTMetadata(minterCheck(_tokenId),_tokenId),msg.sender,_tokenId,_amount,msg.value,1,0);
safeTransferFrom(_owner,msg.sender,_tokenId,_amount,"0x0");
ownedNFT[_owner][_tokenId].amount = ownedNFT[_owner][_tokenId].amount.sub(_amount);
setApproval(_owner,msg.sender, false);
}else if(getOwnedNFTCurrency(_owner,_tokenId)==1){//ERC 구매
require(getPriceFeeIncluded(_owner, _tokenId, _fee).mul(_amount) <= _price, "resell::Must purchase the token for the correct price" );
setApproval(_owner,msg.sender, true);
platformFeeBuyerToken(_fee);//구매 수수료
uint256 ownerRoyalty = (_price.sub(_fee)).mul(_royalRate).div(10000);
royaltiesToken(ownerRoyalty,_tokenId);//발행자 로열티
uint256 sellerCost = (_price - platformFeeReSellerToken(_fee,_price)- ownerRoyalty);
reSellpaymentToken(_owner,sellerCost);//판매 대금
ownedNFT[msg.sender][_tokenId]= NFTAsset(getOwnedNFTMetadata(minterCheck(_tokenId),_tokenId),msg.sender,_tokenId,_amount,_price,1,1);
safeTransferFrom(_owner,msg.sender,_tokenId,_amount,"0x0");
ownedNFT[_owner][_tokenId].amount = ownedNFT[_owner][_tokenId].amount.sub(_amount);
setApproval(_owner,msg.sender, false);
}
}
function royaltiesToken(uint256 _royalty,uint256 _tokenId) public payable { //발행자 로열티
if (_royalty > 0) {
address creator = creatorOf(_tokenId);
IERC20(getTokenAddr()).transferFrom(msg.sender,creator, _royalty);
}
}
function platformFeeReSellerToken(uint256 _fee,uint256 _price) public payable returns(uint256) { //판매자 수수료
if(getFeeRate()>0){
uint256 platformFeeSeller =(_price.sub(_fee)).mul(getFeeRate()).div(10000);
IERC20(getTokenAddr()).transferFrom(msg.sender,getPlatformAddr(), platformFeeSeller);
return(calculateTotalFee(platformFeeSeller,_fee));
}else if(getFeeRate()==0){
return(0);
}
}
function reSellpaymentToken(address payable _from,uint256 _cost) public payable { //비용 지불
if (_cost > 0) {
IERC20(getTokenAddr()).transferFrom(msg.sender,_from, _cost);
}
}
function royalties(uint256 _royalty,uint256 _tokenId) public payable { //발행자 로열티
if (_royalty > 0) {
address creator = creatorOf(_tokenId);
payable(creator).transfer(_royalty);
}
}
function platformFeeReSeller(uint256 _fee) public payable returns(uint256) { //판매자 수수료
if (msg.value > 0) {
uint256 platformFeeSeller =(msg.value.sub(_fee)).mul(getFeeRate()).div(10000);
payable(getPlatformAddr()).transfer(platformFeeSeller);
return(calculateTotalFee(platformFeeSeller,_fee));
}
}
function reSellpayment(address payable _from,uint256 _cost) public payable { //비용 지불
if (_cost > 0) {
_from.transfer(_cost);
}
}
//RESELL 2차 구매
function minterCheck(uint256 _tokenId) public view returns (address){ //minter 확인
return minterOf(_tokenId);
}
function creatorCheck(uint256 _tokenId) public view returns (address){ //creator 확인 로열티 받을 사람
return creatorOf(_tokenId);
}
}
