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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| // SPDX-License-Identifier: MIT | ||
| pragma solidity ^0.8.17; | ||
|
|
||
| import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol"; | ||
| import "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol"; | ||
|
|
||
| contract RustSbt721 is ERC721Upgradeable, OwnableUpgradeable { | ||
| mapping(uint256 => string) private _token2hash; | ||
| uint256 private _localTokenId; | ||
| string private _baseUrl; | ||
|
|
||
| function initialize(string memory name, string memory symbol) | ||
| public | ||
| initializer | ||
| { | ||
| __ERC721_init(name, symbol); | ||
| __Ownable_init(); | ||
| _localTokenId = 0; | ||
| _baseUrl = "https://akiho-playground.infura-ipfs.io/ipfs/"; | ||
| } | ||
|
|
||
| function mint(string memory contentHash) public virtual onlyOwner { | ||
| _localTokenId += 1; | ||
| _token2hash[_localTokenId] = contentHash; | ||
| _mint(_msgSender(), _localTokenId); | ||
| } | ||
|
|
||
| function setBaseURI(string memory base) public virtual onlyOwner { | ||
| _baseUrl = base; | ||
| } | ||
|
|
||
| function tokenURI(uint256 tokenId) | ||
| public | ||
| view | ||
| virtual | ||
| override | ||
| returns (string memory) | ||
| { | ||
| string memory contentHash = _token2hash[tokenId]; | ||
| return string(abi.encodePacked(_baseUrl, contentHash)); | ||
| } | ||
|
|
||
| function isOwner(uint256 tokenId, address target) | ||
| public | ||
| view | ||
| virtual | ||
| returns (bool) | ||
| { | ||
| return ownerOf(tokenId) == target; | ||
| } | ||
|
|
||
| function _beforeTokenTransfer( | ||
| address from, | ||
| address to, | ||
| uint256 tokenId, | ||
| uint256 batchSize | ||
| ) internal override { | ||
| require(from == address(0), "Err: token is SOUL BOUND"); | ||
| super._beforeTokenTransfer(from, to, tokenId, batchSize); | ||
| } | ||
| } |
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