71 lines
2.0 KiB
Solidity
71 lines
2.0 KiB
Solidity
// SPDX-License-Identifier: GPL-3.0
|
|
pragma solidity ^0.8.23;
|
|
|
|
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
|
|
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
|
|
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol";
|
|
import "@openzeppelin/contracts/access/AccessControl.sol";
|
|
|
|
/// @custom:security-contact david@neetsec.com
|
|
contract DCO2s is ERC721, ERC721Enumerable, ERC721URIStorage, AccessControl {
|
|
bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
|
|
uint256 private _nextTokenId;
|
|
string bURI;
|
|
|
|
constructor(
|
|
address defaultAdmin,
|
|
address minter,
|
|
string memory baseURI,
|
|
string memory name, string memory symbol)
|
|
ERC721(name, symbol) {
|
|
_grantRole(DEFAULT_ADMIN_ROLE, defaultAdmin);
|
|
_grantRole(MINTER_ROLE, minter);
|
|
bURI = baseURI;
|
|
}
|
|
|
|
function _baseURI() internal view override returns (string memory) {
|
|
return bURI;
|
|
}
|
|
|
|
function safeMint(address to, string memory uri) public onlyRole(MINTER_ROLE) {
|
|
uint256 tokenId = _nextTokenId++;
|
|
_safeMint(to, tokenId);
|
|
_setTokenURI(tokenId, uri);
|
|
}
|
|
|
|
// The following functions are overrides required by Solidity.
|
|
|
|
function _update(address to, uint256 tokenId, address auth)
|
|
internal
|
|
override(ERC721, ERC721Enumerable)
|
|
returns (address)
|
|
{
|
|
return super._update(to, tokenId, auth);
|
|
}
|
|
|
|
function _increaseBalance(address account, uint128 value)
|
|
internal
|
|
override(ERC721, ERC721Enumerable)
|
|
{
|
|
super._increaseBalance(account, value);
|
|
}
|
|
|
|
function tokenURI(uint256 tokenId)
|
|
public
|
|
view
|
|
override(ERC721, ERC721URIStorage)
|
|
returns (string memory)
|
|
{
|
|
return super.tokenURI(tokenId);
|
|
}
|
|
|
|
function supportsInterface(bytes4 interfaceId)
|
|
public
|
|
view
|
|
override(ERC721, ERC721Enumerable, ERC721URIStorage, AccessControl)
|
|
returns (bool)
|
|
{
|
|
return super.supportsInterface(interfaceId);
|
|
}
|
|
}
|