Transaction Hash:
Block:
16705008 at Feb-25-2023 11:29:11 AM +UTC
Transaction Fee:
0.000636502495573296 ETH
$1.54
Gas Used:
33,207 Gas / 19.167720528 Gwei
Emitted Events:
| 316 |
YING.TokenHashSet( tokenId=626, tokenHash=B76F772F6AD927F0A729BB0CF207A7845D41A829877C22847017465FDF7AF93A )
|
Account State Difference:
| Address | Before | After | State Difference | ||
|---|---|---|---|---|---|
| 0x08A2Ae66...977b52F48 |
1.121553976083658785 Eth
Nonce: 12834
|
1.120917473588085489 Eth
Nonce: 12835
| 0.000636502495573296 | ||
|
0x690B9A9E...Db4FaC990
Miner
| (builder0x69) | 1.904380310842803711 Eth | 1.904383174736120952 Eth | 0.000002863893317241 |
Execution Trace
YING.setTokenHash( tokenId_=626, tokenHash_=B76F772F6AD927F0A729BB0CF207A7845D41A829877C22847017465FDF7AF93A )
YING.setTokenHash( tokenId_=626, tokenHash_=B76F772F6AD927F0A729BB0CF207A7845D41A829877C22847017465FDF7AF93A )
-
YING.exists( tokenId_=626 ) => ( True )
setTokenHash[HootBaseERC721URIStorage (ln:1327)]
exists[HootBaseERC721URIStorage (ln:1331)]TokenHashSet[HootBaseERC721URIStorage (ln:1333)]
// SPDX-License-Identifier: MIT
/*
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
+ +
+ +
. .^!!~: .^!!^. .
. :7Y5Y7^. .^!J5Y7^. .
. :!5B#GY7^. .^!JP##P7: .
. 7777??! ~????7. :5@@@@&GY7^. .^!JG#@@@@G^ 7????????????^ ~????77 .
. @@@@@G P@@@@@: J#@@@@@@@@@@&G57~. .^7YG#@@@@@@@@@@&5: #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: :B@@@@@BJG@@@@@@@@@&B5?~:^7YG#@@@@@@@@BJP@@@ @@&!! #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: .B@@@@#!!J@@@@@@@@@@@@@@@&@@@@@@@@@@@@@@@P ^G@@@@@~. ^~~~~~^J@ @@@@??:~~~~~ .
. @@@@@B^^^^^^^^. 5@@@@@: J@@@@&^ G@7?@@@@@@&@@@@@@@@@@@&@J7&@@@@@#. .B@@@@P !@@@@@? .
. @@@@@@@@@@@@@@! 5@@@@@: 5@@@@B ^B&&@@@@@#!#@@@@@@@@@@7G&&@@@@@#! Y@@@@#. !@@@@@? .
. @@@@@@@@@@@@@@! P@@@@@: ?@@@@&^ !YPGPY! !@@@@@Y&@@@@Y ~YPGP57. .B@@@@P !@@@@@? .
. @@@@@B~~~~~~~!!.?GPPGP: .B@@@@&7 ?&@@@@P ?@@@@@5. ~B@@@@&^ !@@@@@? .
. @@@@@G ^~~~~~. :G@@@@@BY7~^^~75#@@@@@5. J@@@@@&P?~^^^!JG@@@@@#~ !@@@@@? .
. @@@@@G 5@@@@@: ?B@@@@@@@@@@@@@@@@B!! ^P@@@@@@@@@@@@@@@@&Y !@@@@@? .
. @@@@@G. P@@@@@: !YB&@@@@@@@@&BY~ ^JG#@@@@@@@@&#P7. !@@@@@? .
. YYYYY7 !YJJJJ. :~!7??7!^: .^!7??7!~: ^YJJJY~ .
. .
. .
. .
. ……………… ………………………………………… ………………………………………… .
. PBGGB?? 7&######&5 :B##############&5 .G#################^ .
. &@@@@5 ?@@@@@@@@@@ :@@@@@@@@@@@@@@@@@G &@@@@@@@@@@@@ @@@@@^ .
. PBBBBJ !!!!!JPPPPPPPPPY !!!!! :&@@@@P?JJJJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJJJJJJ. .
. ~~~~~: .#@@@@Y ~@@@@@~ :&@@@@7 ~@@@&. ^@@@@. .
. #@@@@Y .#@@@@G?JJJJJJJJ?5@@@@@~ :&@@@@7 !JJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJ!! .
. #@@@@Y .#@@@@@@@@@@@@@@@@@@@@@@~ :&@@@@7 G@@@@@@@@G &@@ @@@@@@@@@@P .
. #@@@@Y .#@@@@&##########&@@@@@~ :&@@@@7 7YYYYYYYYJ???7 JYYYYYYYYYYYYJ???7 .
. #@@@@Y .#@@@@5 ........ !@@@@@~ :&@@@@7 ~@@@&. !@@@# .
. #@@@@#5PPPPPPPPPJJ .#@@@@Y !@@@@@~ :&@@@@P7??????????JYY5J .?????????? ???????JYY5J .
. &@@@@@@@@@@@@@@@@@ .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@@@P .
. PBBBBBBBBBBBBBBBBY .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@ @@5 .
+ +
+ +
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
*/
pragma solidity ^0.8.0;
import "../hootbase/base/erc721/HootERC721.sol";
import "../hootbase/base/common/HootProvenance.sol";
import "../hootbase/base/erc721/features/HootBaseERC721Raising.sol";
import "../hootbase/base/erc721/features/HootBaseERC721Refund.sol";
import "../hootbase/base/erc721/features/HootBaseERC721URIStorageWithLevel.sol";
import "../hootbase/utils/HootRandTokenID.sol";
abstract contract YINGBlind {
function ownerOf(uint256 tokenId) public view virtual returns (address);
function isFreeMintYINGToken(uint256 tokenId)
public
view
virtual
returns (bool);
}
/**
* @title HootAirdropBox
* @author HootLabs
*/
contract YING is
HootRandTokenID,
HootBaseERC721Provenance,
HootBaseERC721Raising,
HootBaseERC721Refund,
HootBaseERC721URIStorageWithLevel,
HootERC721
{
event YINGConfigChanged(YINGConfig cfg);
event YINGBlindContractChanged(address blindAddress);
event YINGRevealed(
uint256 indexed blindTokenId,
uint256 indexed yingTokenId
);
/**
* used to mark the contract, each contract have to make a different CONTRACT_SHIELD
*/
uint256 public constant CONTRACT_SHIELD = 1942123432145421;
struct YINGConfig {
uint256 maxSupply;
bool rejectFreeMintRefund;
}
YINGConfig public yingCfg;
address _yingBlindAddress;
constructor(YINGConfig memory yingCfg_)
HootERC721("YING", "YING")
{
yingCfg = yingCfg_;
}
/***********************************|
| Config |
|__________________________________*/
function setYINGConfig(YINGConfig calldata cfg_) external onlyOwner {
yingCfg = cfg_;
emit YINGConfigChanged(cfg_);
}
// Set authorized contract address for minting the ERC-721 token
function setYINGBlindContract(address contractAddress_) external onlyOwner {
_yingBlindAddress = contractAddress_;
emit YINGBlindContractChanged(contractAddress_);
}
/***********************************|
| Core |
|__________________________________*/
function mintTransfer(address address_, uint256 blindTokenId_)
public
virtual
returns (uint256)
{
require(_msgSender() == _yingBlindAddress, "not authorized");
unchecked {
require(
totalMinted() + 1 <= yingCfg.maxSupply,
"mint would exceed max supply"
);
}
uint256 tokenId = _genTokenId();
_safeMint(address_, tokenId);
emit YINGRevealed(blindTokenId_, tokenId);
return tokenId;
}
function mintTransferBatch(
address address_,
uint256[] calldata blindTokenIds_
) public virtual returns (uint256[] memory) {
require(_msgSender() == _yingBlindAddress, "not authorized");
require(
blindTokenIds_.length <= yingCfg.maxSupply,
"mint would exceed max supply"
);
unchecked {
require(
totalMinted() + blindTokenIds_.length <= yingCfg.maxSupply,
"mint would exceed max supply"
);
uint256[] memory tokenIds = new uint256[](blindTokenIds_.length);
for (uint256 i = 0; i < blindTokenIds_.length; i++) {
uint256 tokenId = _genTokenId();
_safeMint(address_, tokenId);
tokenIds[i] = tokenId;
emit YINGRevealed(blindTokenIds_[i], tokenId);
}
return tokenIds;
}
}
/***********************************|
| HootBaseERC721Owners |
|__________________________________*/
function exists(uint256 tokenId_)
public
view
virtual
override(HootBaseERC721Owners, HootERC721)
returns (bool)
{
return HootERC721.exists(tokenId_);
}
/***********************************|
| HootRandTokenID |
|__________________________________*/
function _remainSupply() internal view virtual override returns (uint256) {
return yingCfg.maxSupply - totalMinted();
}
/***********************************|
| HootBaseERC721Refund |
|__________________________________*/
function _refundPrice(uint256 tokenId_)
internal
view
virtual
override
returns (uint256)
{
if (yingCfg.rejectFreeMintRefund) {
YINGBlind yingBlind = YINGBlind(_yingBlindAddress);
if (yingBlind.isFreeMintYINGToken(tokenId_)) {
return 0;
}
}
return super._refundPrice(tokenId_);
}
/***********************************|
| HootBaseERC721URIStorageWithLevel |
|__________________________________*/
function tokenURI(uint256 tokenId_)
public
view
virtual
override(ERC721, HootBaseERC721URIStorage)
returns (string memory)
{
return HootBaseERC721URIStorage.tokenURI(tokenId_);
}
/***********************************|
| HootERC721 |
|__________________________________*/
function tokenByIndex(uint256 index)
external
view
virtual
override
returns (uint256)
{
require(index < totalMinted(), "out of range");
return _unsafeGetTokenIdByIndex(index);
}
function tokenOfOwnerByIndex(address owner, uint256 index)
external
view
override
returns (uint256)
{
require(balanceOf(owner) > index, "there are not enough tokens");
uint256 totalMinted = totalMinted();
uint256 scanIndex = 0;
uint256 tokenId = 0;
for (uint256 i = 0; i < totalMinted; i++) {
tokenId = _unsafeGetTokenIdByIndex(i);
require(tokenId >= _startTokenId(), "token not minted");
if (_unsafeOwnerOf(tokenId) != owner) {
continue;
}
if (scanIndex == index) {
return tokenId;
}
++scanIndex;
}
revert("not found token");
}
function tokensOfOwner(address owner_)
external
view
returns (uint256[] memory)
{
uint256 balance = balanceOf(owner_);
if (balance == 0) {
return new uint256[](0);
}
uint256[] memory tokens = new uint256[](balance);
uint256 totalMinted = totalMinted();
uint256 scanIndex = 0;
uint256 tokenId = 0;
for (uint256 i = 0; i < totalMinted; i++) {
tokenId = _unsafeGetTokenIdByIndex(i);
require(tokenId >= _startTokenId(), "token not minted");
if (_unsafeOwnerOf(tokenId) != owner_) {
continue;
}
tokens[scanIndex] = tokenId;
++scanIndex;
if(scanIndex == balance){
break;
}
}
require(scanIndex == balance, "not enough tokens were found");
return tokens;
}
/***********************************|
| ERC721A |
|__________________________________*/
/**
* @notice hook function, used to intercept the transfer of token.
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual override(HootBaseERC721Raising, HootERC721) {
HootBaseERC721Raising._beforeTokenTransfer(from, to, tokenId);
super._beforeTokenTransfer(from, to, tokenId);
}
}
// SPDX-License-Identifier: MIT
/*
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
+ +
+ +
. .^!!~: .^!!^. .
. :7Y5Y7^. .^!J5Y7^. .
. :!5B#GY7^. .^!JP##P7: .
. 7777??! ~????7. :5@@@@&GY7^. .^!JG#@@@@G^ 7????????????^ ~????77 .
. @@@@@G P@@@@@: J#@@@@@@@@@@&G57~. .^7YG#@@@@@@@@@@&5: #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: :B@@@@@BJG@@@@@@@@@&B5?~:^7YG#@@@@@@@@BJP@@@ @@&!! #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: .B@@@@#!!J@@@@@@@@@@@@@@@&@@@@@@@@@@@@@@@P ^G@@@@@~. ^~~~~~^J@ @@@@??:~~~~~ .
. @@@@@B^^^^^^^^. 5@@@@@: J@@@@&^ G@7?@@@@@@&@@@@@@@@@@@&@J7&@@@@@#. .B@@@@P !@@@@@? .
. @@@@@@@@@@@@@@! 5@@@@@: 5@@@@B ^B&&@@@@@#!#@@@@@@@@@@7G&&@@@@@#! Y@@@@#. !@@@@@? .
. @@@@@@@@@@@@@@! P@@@@@: ?@@@@&^ !YPGPY! !@@@@@Y&@@@@Y ~YPGP57. .B@@@@P !@@@@@? .
. @@@@@B~~~~~~~!!.?GPPGP: .B@@@@&7 ?&@@@@P ?@@@@@5. ~B@@@@&^ !@@@@@? .
. @@@@@G ^~~~~~. :G@@@@@BY7~^^~75#@@@@@5. J@@@@@&P?~^^^!JG@@@@@#~ !@@@@@? .
. @@@@@G 5@@@@@: ?B@@@@@@@@@@@@@@@@B!! ^P@@@@@@@@@@@@@@@@&Y !@@@@@? .
. @@@@@G. P@@@@@: !YB&@@@@@@@@&BY~ ^JG#@@@@@@@@&#P7. !@@@@@? .
. YYYYY7 !YJJJJ. :~!7??7!^: .^!7??7!~: ^YJJJY~ .
. .
. .
. .
. ……………… ………………………………………… ………………………………………… .
. PBGGB?? 7&######&5 :B##############&5 .G#################^ .
. &@@@@5 ?@@@@@@@@@@ :@@@@@@@@@@@@@@@@@G &@@@@@@@@@@@@ @@@@@^ .
. PBBBBJ !!!!!JPPPPPPPPPY !!!!! :&@@@@P?JJJJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJJJJJJ. .
. ~~~~~: .#@@@@Y ~@@@@@~ :&@@@@7 ~@@@&. ^@@@@. .
. #@@@@Y .#@@@@G?JJJJJJJJ?5@@@@@~ :&@@@@7 !JJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJ!! .
. #@@@@Y .#@@@@@@@@@@@@@@@@@@@@@@~ :&@@@@7 G@@@@@@@@G &@@ @@@@@@@@@@P .
. #@@@@Y .#@@@@&##########&@@@@@~ :&@@@@7 7YYYYYYYYJ???7 JYYYYYYYYYYYYJ???7 .
. #@@@@Y .#@@@@5 ........ !@@@@@~ :&@@@@7 ~@@@&. !@@@# .
. #@@@@#5PPPPPPPPPJJ .#@@@@Y !@@@@@~ :&@@@@P7??????????JYY5J .?????????? ???????JYY5J .
. &@@@@@@@@@@@@@@@@@ .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@@@P .
. PBBBBBBBBBBBBBBBBY .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@ @@5 .
+ +
+ +
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
*/
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
/**
* @title Hootbirds
* @author HootLabs
*/
abstract contract HootRandTokenID is ReentrancyGuard, Ownable {
using Strings for uint256;
uint256 public constant MAX_SUPPLY = 5831;
uint256[MAX_SUPPLY] internal _randIndices; // Used to generate random tokenids
constructor() {}
/***********************************|
| abstract |
|__________________________________*/
function _remainSupply() internal view virtual returns (uint256);
/***********************************|
| RandomTokenId |
|__________________________________*/
function init(uint256 startIndex, uint256 stopIndex) external onlyOwner {
unchecked {
for(uint256 i=startIndex; i<stopIndex; i++){
_randIndices[i] = i+1;
}
}
}
function freeStores() external virtual onlyOwner nonReentrant {
require(_remainSupply() == 0, "there is some token left");
delete _randIndices;
}
function _genTokenId() internal returns (uint256 tokenId_) {
uint256 remain = _remainSupply();
require(remain > 0, "tokenId has been exhausted");
unchecked {
tokenId_ = _changePos(remain-1, _unsafeRandom(remain) % remain);
}
}
function _genTokenIdBatch(uint256 supply) internal returns (uint256[] memory){
require(supply > 0, "tokenId has been exhausted");
uint256 remain = _remainSupply();
require(supply <= remain, "not enough tokenIDs");
uint256[] memory tokenIDs = new uint256[](supply);
unchecked {
for(uint256 i=0;i<supply; i++){
tokenIDs[i] = _changePos(remain-i-1, _unsafeRandom(i) % (remain-i));
}
}
return tokenIDs;
}
function _genFirstTokenId() internal returns (uint256 tokenId_){
require(_remainSupply() == _randIndices.length, "the first tokenId already generated");
return _changePos(_randIndices.length-1, 0);
}
function _changePos(uint256 lastestPos, uint256 pos) private returns (uint256) {
uint256 val = _randIndices[pos];
_randIndices[pos] = _randIndices[lastestPos];
_randIndices[lastestPos] = val;
return val;
}
function _unsafeGetTokenIdByIndex(uint256 index_) internal view returns (uint256) {
if(index_ >= _randIndices.length){
return 0;
}
return _randIndices[_randIndices.length - index_ - 1];
}
/***********************************|
| Util |
|__________________________________*/
/**
* @notice unsafeRandom is used to generate a random number by on-chain randomness.
* Please note that on-chain random is potentially manipulated by miners, and most scenarios suggest using VRF.
* @return randomly generated number.
*/
function _unsafeRandom(uint256 n) private view returns (uint256) {
unchecked {
return
uint256(
keccak256(
abi.encodePacked(
blockhash(block.number - 1),
block.difficulty,
block.timestamp,
block.coinbase,
n,
tx.origin
)
)
);
}
}
}// SPDX-License-Identifier: MIT
/*
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
+ +
+ +
. .^!!~: .^!!^. .
. :7Y5Y7^. .^!J5Y7^. .
. :!5B#GY7^. .^!JP##P7: .
. 7777??! ~????7. :5@@@@&GY7^. .^!JG#@@@@G^ 7????????????^ ~????77 .
. @@@@@G P@@@@@: J#@@@@@@@@@@&G57~. .^7YG#@@@@@@@@@@&5: #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: :B@@@@@BJG@@@@@@@@@&B5?~:^7YG#@@@@@@@@BJP@@@ @@&!! #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: .B@@@@#!!J@@@@@@@@@@@@@@@&@@@@@@@@@@@@@@@P ^G@@@@@~. ^~~~~~^J@ @@@@??:~~~~~ .
. @@@@@B^^^^^^^^. 5@@@@@: J@@@@&^ G@7?@@@@@@&@@@@@@@@@@@&@J7&@@@@@#. .B@@@@P !@@@@@? .
. @@@@@@@@@@@@@@! 5@@@@@: 5@@@@B ^B&&@@@@@#!#@@@@@@@@@@7G&&@@@@@#! Y@@@@#. !@@@@@? .
. @@@@@@@@@@@@@@! P@@@@@: ?@@@@&^ !YPGPY! !@@@@@Y&@@@@Y ~YPGP57. .B@@@@P !@@@@@? .
. @@@@@B~~~~~~~!!.?GPPGP: .B@@@@&7 ?&@@@@P ?@@@@@5. ~B@@@@&^ !@@@@@? .
. @@@@@G ^~~~~~. :G@@@@@BY7~^^~75#@@@@@5. J@@@@@&P?~^^^!JG@@@@@#~ !@@@@@? .
. @@@@@G 5@@@@@: ?B@@@@@@@@@@@@@@@@B!! ^P@@@@@@@@@@@@@@@@&Y !@@@@@? .
. @@@@@G. P@@@@@: !YB&@@@@@@@@&BY~ ^JG#@@@@@@@@&#P7. !@@@@@? .
. YYYYY7 !YJJJJ. :~!7??7!^: .^!7??7!~: ^YJJJY~ .
. .
. .
. .
. ……………… ………………………………………… ………………………………………… .
. PBGGB?? 7&######&5 :B##############&5 .G#################^ .
. &@@@@5 ?@@@@@@@@@@ :@@@@@@@@@@@@@@@@@G &@@@@@@@@@@@@ @@@@@^ .
. PBBBBJ !!!!!JPPPPPPPPPY !!!!! :&@@@@P?JJJJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJJJJJJ. .
. ~~~~~: .#@@@@Y ~@@@@@~ :&@@@@7 ~@@@&. ^@@@@. .
. #@@@@Y .#@@@@G?JJJJJJJJ?5@@@@@~ :&@@@@7 !JJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJ!! .
. #@@@@Y .#@@@@@@@@@@@@@@@@@@@@@@~ :&@@@@7 G@@@@@@@@G &@@ @@@@@@@@@@P .
. #@@@@Y .#@@@@&##########&@@@@@~ :&@@@@7 7YYYYYYYYJ???7 JYYYYYYYYYYYYJ???7 .
. #@@@@Y .#@@@@5 ........ !@@@@@~ :&@@@@7 ~@@@&. !@@@# .
. #@@@@#5PPPPPPPPPJJ .#@@@@Y !@@@@@~ :&@@@@P7??????????JYY5J .?????????? ???????JYY5J .
. &@@@@@@@@@@@@@@@@@ .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@@@P .
. PBBBBBBBBBBBBBBBBY .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@ @@5 .
+ +
+ +
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
*/
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol";
import "../../common/HootBase.sol";
import "../extensions/HootBaseERC721Owners.sol";
import "./HootBaseERC721URIStorage.sol";
/**
* @title HootBaseERC721URIStorageWithLevel
* @author HootLabs
*/
abstract contract HootBaseERC721URIStorageWithLevel is HootBaseERC721URIStorage
{
using Strings for uint256;
event LevelBaseURIChanged(uint256 level, string uri);
event TokenLevelChanged(uint256 tokenId, uint256 level);
// Optional mapping for token URIs
mapping(uint256=>string) _levelPreURIs;
mapping(uint256 => uint256) private _tokenLevels;
function setLevelsBaseURI(uint256[] calldata levels_, string[] calldata uris_)
external
atLeastManager
{
require(levels_.length == uris_.length, "the length of Listing Level is different from that of Listing URI");
for(uint256 i = 0; i<levels_.length; i++){
_levelPreURIs[levels_[i]] = uris_[i];
emit LevelBaseURIChanged(levels_[i], uris_[i]);
}
}
function setTokensLevel(uint256[] calldata tokens_, uint256[] calldata levels_)
external
atLeastManager
{
require(tokens_.length == levels_.length, "the length of Listing Token is different from that of Listing Level");
for(uint256 i = 0; i<tokens_.length; i++){
_tokenLevels[tokens_[i]] = levels_[i];
emit TokenLevelChanged(tokens_[i], levels_[i]);
}
}
function _baseURI(uint256 tokenId_) internal view virtual override returns (string memory) {
uint256 level = _tokenLevels[tokenId_];
if(level == 0){
return super._baseURI(tokenId_);
}
string memory baseURI = _levelPreURIs[level];
if(bytes(baseURI).length == 0){
return super._baseURI(tokenId_);
}
return baseURI;
}
}// SPDX-License-Identifier: MIT
/*
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
+ +
+ +
. .^!!~: .^!!^. .
. :7Y5Y7^. .^!J5Y7^. .
. :!5B#GY7^. .^!JP##P7: .
. 7777??! ~????7. :5@@@@&GY7^. .^!JG#@@@@G^ 7????????????^ ~????77 .
. @@@@@G P@@@@@: J#@@@@@@@@@@&G57~. .^7YG#@@@@@@@@@@&5: #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: :B@@@@@BJG@@@@@@@@@&B5?~:^7YG#@@@@@@@@BJP@@@ @@&!! #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: .B@@@@#!!J@@@@@@@@@@@@@@@&@@@@@@@@@@@@@@@P ^G@@@@@~. ^~~~~~^J@ @@@@??:~~~~~ .
. @@@@@B^^^^^^^^. 5@@@@@: J@@@@&^ G@7?@@@@@@&@@@@@@@@@@@&@J7&@@@@@#. .B@@@@P !@@@@@? .
. @@@@@@@@@@@@@@! 5@@@@@: 5@@@@B ^B&&@@@@@#!#@@@@@@@@@@7G&&@@@@@#! Y@@@@#. !@@@@@? .
. @@@@@@@@@@@@@@! P@@@@@: ?@@@@&^ !YPGPY! !@@@@@Y&@@@@Y ~YPGP57. .B@@@@P !@@@@@? .
. @@@@@B~~~~~~~!!.?GPPGP: .B@@@@&7 ?&@@@@P ?@@@@@5. ~B@@@@&^ !@@@@@? .
. @@@@@G ^~~~~~. :G@@@@@BY7~^^~75#@@@@@5. J@@@@@&P?~^^^!JG@@@@@#~ !@@@@@? .
. @@@@@G 5@@@@@: ?B@@@@@@@@@@@@@@@@B!! ^P@@@@@@@@@@@@@@@@&Y !@@@@@? .
. @@@@@G. P@@@@@: !YB&@@@@@@@@&BY~ ^JG#@@@@@@@@&#P7. !@@@@@? .
. YYYYY7 !YJJJJ. :~!7??7!^: .^!7??7!~: ^YJJJY~ .
. .
. .
. .
. ……………… ………………………………………… ………………………………………… .
. PBGGB?? 7&######&5 :B##############&5 .G#################^ .
. &@@@@5 ?@@@@@@@@@@ :@@@@@@@@@@@@@@@@@G &@@@@@@@@@@@@ @@@@@^ .
. PBBBBJ !!!!!JPPPPPPPPPY !!!!! :&@@@@P?JJJJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJJJJJJ. .
. ~~~~~: .#@@@@Y ~@@@@@~ :&@@@@7 ~@@@&. ^@@@@. .
. #@@@@Y .#@@@@G?JJJJJJJJ?5@@@@@~ :&@@@@7 !JJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJ!! .
. #@@@@Y .#@@@@@@@@@@@@@@@@@@@@@@~ :&@@@@7 G@@@@@@@@G &@@ @@@@@@@@@@P .
. #@@@@Y .#@@@@&##########&@@@@@~ :&@@@@7 7YYYYYYYYJ???7 JYYYYYYYYYYYYJ???7 .
. #@@@@Y .#@@@@5 ........ !@@@@@~ :&@@@@7 ~@@@&. !@@@# .
. #@@@@#5PPPPPPPPPJJ .#@@@@Y !@@@@@~ :&@@@@P7??????????JYY5J .?????????? ???????JYY5J .
. &@@@@@@@@@@@@@@@@@ .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@@@P .
. PBBBBBBBBBBBBBBBBY .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@ @@5 .
+ +
+ +
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
*/
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "../../common/HootBase.sol";
/**
* @title HootBaseERC721Refund
* @author HootLabs
*/
abstract contract HootBaseERC721Refund is HootBase, IERC721 {
using Address for address;
event RefundConfigChanged(RefundConfig config);
event RefundAddressChanged(address indexed refundAddress);
event Refunded(address indexed from, address indexed to, uint256 tokenId, uint256 amount);
constructor(){
refundAddress = _msgSender();
}
// mint State Variables
address public refundAddress;
struct RefundConfig {
uint256 startTime;
uint256 stopTime;
uint256 price;
}
RefundConfig public refundConfig;
// refund config
function isRefundEnabled() public view virtual returns (bool) {
return block.timestamp > refundConfig.startTime && block.timestamp < refundConfig.stopTime;
}
function setRefundAddress(address refundAddress_) external onlyOwner {
refundAddress = refundAddress_;
emit RefundAddressChanged(refundAddress_);
}
function setRefundConfig(RefundConfig calldata cfg_) external onlyOwner {
refundConfig = cfg_;
emit RefundConfigChanged(refundConfig);
}
function _refundPrice(uint256 /*tokenId_*/) internal view virtual returns (uint256) {
return refundConfig.price;
}
// refund
function refund(uint256 tokenId_) external callerIsUser nonReentrant {
require(_msgSender() == this.ownerOf(tokenId_), "not token owner");
require(_msgSender() != refundAddress, "stock account refunds are not allowed");
require(isRefundEnabled(), "outside the refundable period");
uint256 refundPrice = _refundPrice(tokenId_);
require(refundPrice > 0, "only sale NFT can be refunded");
require(address(this).balance >= refundPrice, "insufficient contract funds");
this.safeTransferFrom(_msgSender(), refundAddress, tokenId_);
//Address.sendValue(payable(_msgSender()), refundPrice);
payable(_msgSender()).transfer(refundPrice);
emit Refunded(_msgSender(), refundAddress, tokenId_, refundPrice);
}
}// SPDX-License-Identifier: MIT
/*
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
+ +
+ +
. .^!!~: .^!!^. .
. :7Y5Y7^. .^!J5Y7^. .
. :!5B#GY7^. .^!JP##P7: .
. 7777??! ~????7. :5@@@@&GY7^. .^!JG#@@@@G^ 7????????????^ ~????77 .
. @@@@@G P@@@@@: J#@@@@@@@@@@&G57~. .^7YG#@@@@@@@@@@&5: #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: :B@@@@@BJG@@@@@@@@@&B5?~:^7YG#@@@@@@@@BJP@@@ @@&!! #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: .B@@@@#!!J@@@@@@@@@@@@@@@&@@@@@@@@@@@@@@@P ^G@@@@@~. ^~~~~~^J@ @@@@??:~~~~~ .
. @@@@@B^^^^^^^^. 5@@@@@: J@@@@&^ G@7?@@@@@@&@@@@@@@@@@@&@J7&@@@@@#. .B@@@@P !@@@@@? .
. @@@@@@@@@@@@@@! 5@@@@@: 5@@@@B ^B&&@@@@@#!#@@@@@@@@@@7G&&@@@@@#! Y@@@@#. !@@@@@? .
. @@@@@@@@@@@@@@! P@@@@@: ?@@@@&^ !YPGPY! !@@@@@Y&@@@@Y ~YPGP57. .B@@@@P !@@@@@? .
. @@@@@B~~~~~~~!!.?GPPGP: .B@@@@&7 ?&@@@@P ?@@@@@5. ~B@@@@&^ !@@@@@? .
. @@@@@G ^~~~~~. :G@@@@@BY7~^^~75#@@@@@5. J@@@@@&P?~^^^!JG@@@@@#~ !@@@@@? .
. @@@@@G 5@@@@@: ?B@@@@@@@@@@@@@@@@B!! ^P@@@@@@@@@@@@@@@@&Y !@@@@@? .
. @@@@@G. P@@@@@: !YB&@@@@@@@@&BY~ ^JG#@@@@@@@@&#P7. !@@@@@? .
. YYYYY7 !YJJJJ. :~!7??7!^: .^!7??7!~: ^YJJJY~ .
. .
. .
. .
. ……………… ………………………………………… ………………………………………… .
. PBGGB?? 7&######&5 :B##############&5 .G#################^ .
. &@@@@5 ?@@@@@@@@@@ :@@@@@@@@@@@@@@@@@G &@@@@@@@@@@@@ @@@@@^ .
. PBBBBJ !!!!!JPPPPPPPPPY !!!!! :&@@@@P?JJJJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJJJJJJ. .
. ~~~~~: .#@@@@Y ~@@@@@~ :&@@@@7 ~@@@&. ^@@@@. .
. #@@@@Y .#@@@@G?JJJJJJJJ?5@@@@@~ :&@@@@7 !JJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJ!! .
. #@@@@Y .#@@@@@@@@@@@@@@@@@@@@@@~ :&@@@@7 G@@@@@@@@G &@@ @@@@@@@@@@P .
. #@@@@Y .#@@@@&##########&@@@@@~ :&@@@@7 7YYYYYYYYJ???7 JYYYYYYYYYYYYJ???7 .
. #@@@@Y .#@@@@5 ........ !@@@@@~ :&@@@@7 ~@@@&. !@@@# .
. #@@@@#5PPPPPPPPPJJ .#@@@@Y !@@@@@~ :&@@@@P7??????????JYY5J .?????????? ???????JYY5J .
. &@@@@@@@@@@@@@@@@@ .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@@@P .
. PBBBBBBBBBBBBBBBBY .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@ @@5 .
+ +
+ +
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
*/
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "../../common/HootBase.sol";
import "../extensions/HootBaseERC721Owners.sol";
/**
* @title HootBaseERC721Raising
* @author HootLabs
*/
abstract contract HootBaseERC721Raising is
HootBase,
HootBaseERC721Owners,
IERC721
{
event RaisingStatusChanged(
uint256 indexed tokenId,
address indexed owner,
uint16 indexed raisingType,
bool isStart
);
event RaisingInterrupted(uint256 indexed tokenId, address indexed operator);
event RaisingTokenTransfered(
address indexed from,
address indexed to,
uint256 indexed tokenId
);
event RaisingAllowedFlagChanged(
bool isRaisingAllowed,
bool isRaisingTransferAllowed
);
struct RaisingStatus {
uint256 raisingStartTime;
uint256 total;
uint16 raisingType;
bool provisionalFree;
}
struct RaisingCurrentStatus {
uint256 total;
uint256 current;
uint16 raisingType;
bool isRaising;
}
mapping(uint256 => RaisingStatus) private _raisingStatuses;
bool public isRaisingAllowed;
bool public isRaisingTransferAllowed;
/***********************************|
| Raising Config |
|__________________________________*/
/**
* @notice setIsRaisingAllowed is used to set the global switch to control whether users are allowed to brew.
* @param isRaisingAllowed_ set to true to allow
*/
function setIsRaisingAllowed(
bool isRaisingAllowed_,
bool isRaisingTransferAllowed_
) external atLeastMaintainer {
isRaisingAllowed = isRaisingAllowed_;
isRaisingTransferAllowed = isRaisingTransferAllowed_;
emit RaisingAllowedFlagChanged(
isRaisingAllowed_,
isRaisingTransferAllowed_
);
}
/***********************************|
| Raising Core |
|__________________________________*/
/**
* @notice safeTransferWhileRaising is used to safely transfer tokens while raising
* @param from_ transfer from address, cannot be the zero.
* @param to_ transfer to address, cannot be the zero.
* @param tokenId_ token must exist and be owned by `from`.
*/
function safeTransferWhileRaising(
address from_,
address to_,
uint256 tokenId_
) external nonReentrant {
require(this.ownerOf(tokenId_) == _msgSender(), "caller is not owner");
require(
isRaisingTransferAllowed,
"transfer while raising is not enabled"
);
_raisingStatuses[tokenId_].provisionalFree = true;
this.safeTransferFrom(from_, to_, tokenId_);
_raisingStatuses[tokenId_].provisionalFree = false;
if (_raisingStatuses[tokenId_].raisingStartTime != 0) {
emit RaisingTokenTransfered(from_, to_, tokenId_);
}
}
/**
* @notice getTokenRaisingStatus is used to get the detailed raising status of a specific token.
* @param tokenIDs_ token id
* @return RaisingCurrentStatus[] how long the token has been raising in the hands of the current hodler.
*/
function getTokenRaisingStatus(uint256[] calldata tokenIDs_)
external
view
returns (RaisingCurrentStatus[] memory)
{
RaisingCurrentStatus[] memory statusList = new RaisingCurrentStatus[](tokenIDs_.length);
for (uint256 i = 0; i < tokenIDs_.length; ++i) {
uint256 tokenId = tokenIDs_[i];
if(!this.exists(tokenId)){
continue;
}
RaisingStatus memory status = _raisingStatuses[tokenId];
if (status.raisingStartTime != 0) {
statusList[i].isRaising = true;
statusList[i].raisingType = status.raisingType;
statusList[i].current = block.timestamp - status.raisingStartTime;
}
statusList[i].total = status.total + statusList[i].current;
}
return statusList;
}
function _isTokenRaising(uint256 tokenId_) internal view returns (bool) {
return _raisingStatuses[tokenId_].raisingStartTime != 0;
}
/**
* @notice setTokenRaisingState is used to modify the Raising state of the Token,
* only the Owner of the Token has this permission.
* @param tokenIds_ list of tokenId
*/
function doTokenRaising(
uint256[] calldata tokenIds_,
uint16 raisingType_,
bool isStart_
) external nonReentrant {
if (isStart_) {
require(isRaisingAllowed, "raising is not allowed");
}
unchecked {
for (uint256 i = 0; i < tokenIds_.length; i++) {
uint256 tokenId = tokenIds_[i];
require(
this.ownerOf(tokenId) == _msgSender(),
"caller is not owner"
);
RaisingStatus storage status = _raisingStatuses[tokenId];
uint256 raisingStartTime = status.raisingStartTime;
if (isStart_) {
if (raisingStartTime == 0) {
status.raisingStartTime = block.timestamp;
status.raisingType = raisingType_;
emit RaisingStatusChanged(
tokenId,
_msgSender(),
raisingType_,
isStart_
);
} else {
require(
status.raisingType == raisingType_,
"raising is already started, but with a different raising type set"
);
}
} else {
if (raisingStartTime > 0) {
status.total += block.timestamp - raisingStartTime;
status.raisingStartTime = 0;
emit RaisingStatusChanged(
tokenId,
_msgSender(),
raisingType_,
isStart_
);
}
}
}
}
}
/**
* @notice interruptTokenRaising gives the issuer the right to forcibly interrupt the raising state of the token.
* One scenario of using it is: someone may maliciously place low-priced raising tokens on
* the secondary market (because raising tokens cannot be traded).
* @param tokenIds_ the tokenId list to operate
*/
function interruptTokenRaising(uint256[] calldata tokenIds_)
external
nonReentrant
atLeastMaintainer
{
unchecked {
for (uint256 i = 0; i < tokenIds_.length; i++) {
uint256 tokenId = tokenIds_[i];
address owner = this.ownerOf(tokenId);
RaisingStatus storage status = _raisingStatuses[tokenId];
if (status.raisingStartTime == 0) {
continue;
}
status.total += block.timestamp - status.raisingStartTime;
status.raisingStartTime = 0;
emit RaisingStatusChanged(
tokenId,
owner,
status.raisingType,
false
);
emit RaisingInterrupted(tokenId, _msgSender());
}
}
}
function _beforeTokenTransfer(
address, /*from_*/
address, /*to_*/
uint256 tokenId_
) internal virtual {
if (_isTokenRaising(tokenId_)) {
require(
_raisingStatuses[tokenId_].provisionalFree,
"token is raising"
);
}
}
function _beforeTokenTransfers(
address, /*from_*/
address, /*to_*/
uint256 startTokenId_,
uint256 quantity_
) internal virtual {
for (uint256 i = 0; i < quantity_; ++i) {
if (_isTokenRaising(startTokenId_ + i)) {
require(
_raisingStatuses[startTokenId_ + i].provisionalFree,
"token is raising"
);
}
}
}
}
// SPDX-License-Identifier: MIT
/*
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
+ +
+ +
. .^!!~: .^!!^. .
. :7Y5Y7^. .^!J5Y7^. .
. :!5B#GY7^. .^!JP##P7: .
. 7777??! ~????7. :5@@@@&GY7^. .^!JG#@@@@G^ 7????????????^ ~????77 .
. @@@@@G P@@@@@: J#@@@@@@@@@@&G57~. .^7YG#@@@@@@@@@@&5: #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: :B@@@@@BJG@@@@@@@@@&B5?~:^7YG#@@@@@@@@BJP@@@ @@&!! #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: .B@@@@#!!J@@@@@@@@@@@@@@@&@@@@@@@@@@@@@@@P ^G@@@@@~. ^~~~~~^J@ @@@@??:~~~~~ .
. @@@@@B^^^^^^^^. 5@@@@@: J@@@@&^ G@7?@@@@@@&@@@@@@@@@@@&@J7&@@@@@#. .B@@@@P !@@@@@? .
. @@@@@@@@@@@@@@! 5@@@@@: 5@@@@B ^B&&@@@@@#!#@@@@@@@@@@7G&&@@@@@#! Y@@@@#. !@@@@@? .
. @@@@@@@@@@@@@@! P@@@@@: ?@@@@&^ !YPGPY! !@@@@@Y&@@@@Y ~YPGP57. .B@@@@P !@@@@@? .
. @@@@@B~~~~~~~!!.?GPPGP: .B@@@@&7 ?&@@@@P ?@@@@@5. ~B@@@@&^ !@@@@@? .
. @@@@@G ^~~~~~. :G@@@@@BY7~^^~75#@@@@@5. J@@@@@&P?~^^^!JG@@@@@#~ !@@@@@? .
. @@@@@G 5@@@@@: ?B@@@@@@@@@@@@@@@@B!! ^P@@@@@@@@@@@@@@@@&Y !@@@@@? .
. @@@@@G. P@@@@@: !YB&@@@@@@@@&BY~ ^JG#@@@@@@@@&#P7. !@@@@@? .
. YYYYY7 !YJJJJ. :~!7??7!^: .^!7??7!~: ^YJJJY~ .
. .
. .
. .
. ……………… ………………………………………… ………………………………………… .
. PBGGB?? 7&######&5 :B##############&5 .G#################^ .
. &@@@@5 ?@@@@@@@@@@ :@@@@@@@@@@@@@@@@@G &@@@@@@@@@@@@ @@@@@^ .
. PBBBBJ !!!!!JPPPPPPPPPY !!!!! :&@@@@P?JJJJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJJJJJJ. .
. ~~~~~: .#@@@@Y ~@@@@@~ :&@@@@7 ~@@@&. ^@@@@. .
. #@@@@Y .#@@@@G?JJJJJJJJ?5@@@@@~ :&@@@@7 !JJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJ!! .
. #@@@@Y .#@@@@@@@@@@@@@@@@@@@@@@~ :&@@@@7 G@@@@@@@@G &@@ @@@@@@@@@@P .
. #@@@@Y .#@@@@&##########&@@@@@~ :&@@@@7 7YYYYYYYYJ???7 JYYYYYYYYYYYYJ???7 .
. #@@@@Y .#@@@@5 ........ !@@@@@~ :&@@@@7 ~@@@&. !@@@# .
. #@@@@#5PPPPPPPPPJJ .#@@@@Y !@@@@@~ :&@@@@P7??????????JYY5J .?????????? ???????JYY5J .
. &@@@@@@@@@@@@@@@@@ .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@@@P .
. PBBBBBBBBBBBBBBBBY .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@ @@5 .
+ +
+ +
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
*/
pragma solidity ^0.8.0;
import "./HootBase.sol";
/**
* @title HootBlindBox
* @author HootLabs
*/
contract HootBaseERC721Provenance is HootBase {
event ProvenanceUpdated(string procenance);
string public provenance;
/***********************************|
| Provenance |
|__________________________________*/
function setProvenance(string calldata provenance_) external onlyOwner {
provenance = provenance_;
emit ProvenanceUpdated(provenance_);
}
}// SPDX-License-Identifier: MIT
/*
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
+ +
+ +
. .^!!~: .^!!^. .
. :7Y5Y7^. .^!J5Y7^. .
. :!5B#GY7^. .^!JP##P7: .
. 7777??! ~????7. :5@@@@&GY7^. .^!JG#@@@@G^ 7????????????^ ~????77 .
. @@@@@G P@@@@@: J#@@@@@@@@@@&G57~. .^7YG#@@@@@@@@@@&5: #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: :B@@@@@BJG@@@@@@@@@&B5?~:^7YG#@@@@@@@@BJP@@@ @@&!! #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: .B@@@@#!!J@@@@@@@@@@@@@@@&@@@@@@@@@@@@@@@P ^G@@@@@~. ^~~~~~^J@ @@@@??:~~~~~ .
. @@@@@B^^^^^^^^. 5@@@@@: J@@@@&^ G@7?@@@@@@&@@@@@@@@@@@&@J7&@@@@@#. .B@@@@P !@@@@@? .
. @@@@@@@@@@@@@@! 5@@@@@: 5@@@@B ^B&&@@@@@#!#@@@@@@@@@@7G&&@@@@@#! Y@@@@#. !@@@@@? .
. @@@@@@@@@@@@@@! P@@@@@: ?@@@@&^ !YPGPY! !@@@@@Y&@@@@Y ~YPGP57. .B@@@@P !@@@@@? .
. @@@@@B~~~~~~~!!.?GPPGP: .B@@@@&7 ?&@@@@P ?@@@@@5. ~B@@@@&^ !@@@@@? .
. @@@@@G ^~~~~~. :G@@@@@BY7~^^~75#@@@@@5. J@@@@@&P?~^^^!JG@@@@@#~ !@@@@@? .
. @@@@@G 5@@@@@: ?B@@@@@@@@@@@@@@@@B!! ^P@@@@@@@@@@@@@@@@&Y !@@@@@? .
. @@@@@G. P@@@@@: !YB&@@@@@@@@&BY~ ^JG#@@@@@@@@&#P7. !@@@@@? .
. YYYYY7 !YJJJJ. :~!7??7!^: .^!7??7!~: ^YJJJY~ .
. .
. .
. .
. ……………… ………………………………………… ………………………………………… .
. PBGGB?? 7&######&5 :B##############&5 .G#################^ .
. &@@@@5 ?@@@@@@@@@@ :@@@@@@@@@@@@@@@@@G &@@@@@@@@@@@@ @@@@@^ .
. PBBBBJ !!!!!JPPPPPPPPPY !!!!! :&@@@@P?JJJJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJJJJJJ. .
. ~~~~~: .#@@@@Y ~@@@@@~ :&@@@@7 ~@@@&. ^@@@@. .
. #@@@@Y .#@@@@G?JJJJJJJJ?5@@@@@~ :&@@@@7 !JJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJ!! .
. #@@@@Y .#@@@@@@@@@@@@@@@@@@@@@@~ :&@@@@7 G@@@@@@@@G &@@ @@@@@@@@@@P .
. #@@@@Y .#@@@@&##########&@@@@@~ :&@@@@7 7YYYYYYYYJ???7 JYYYYYYYYYYYYJ???7 .
. #@@@@Y .#@@@@5 ........ !@@@@@~ :&@@@@7 ~@@@&. !@@@# .
. #@@@@#5PPPPPPPPPJJ .#@@@@Y !@@@@@~ :&@@@@P7??????????JYY5J .?????????? ???????JYY5J .
. &@@@@@@@@@@@@@@@@@ .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@@@P .
. PBBBBBBBBBBBBBBBBY .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@ @@5 .
+ +
+ +
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
*/
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
import "./extensions/HootBaseERC721Owners.sol";
import "../common/HootBase.sol";
/**
* @title Hootbirds
* @author HootLabs
*/
abstract contract HootERC721 is
HootBase,
HootBaseERC721Owners,
ERC721,
IERC721Enumerable
{
using Strings for uint256;
constructor(string memory name_, string memory symbol_)
ERC721(name_, symbol_)
{}
uint256 private _totalMinted;
uint256 private _totalBurned;
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/***********************************|
| Config |
|__________________________________*/
function _startTokenId() internal view virtual returns (uint256) {
return 1;
}
/***********************************|
| Core |
|__________________________________*/
function _mint(address to, uint256 tokenId) internal virtual override {
super._mint(to, tokenId);
unchecked {
++_totalMinted;
}
}
/**
* @notice issuer have permission to burn token.
* @param tokenIds_ list of tokenId
*/
function burn(uint256[] calldata tokenIds_)
external
onlyOwner
nonReentrant
{
for (uint256 i = 0; i < tokenIds_.length; i++) {
uint256 tokenId = tokenIds_[i];
require(ownerOf(tokenId) == _msgSender(), "caller is not owner");
_burn(tokenId);
}
_totalBurned += tokenIds_.length;
}
function totalBurned() public view returns (uint256) {
return _totalBurned;
}
function totalMinted() public view returns (uint256) {
return _totalMinted;
}
/***********************************|
| IERC721Enumerable |
|__________________________________*/
/**
* @dev Returns the total amount of tokens stored by the contract.
*/
function totalSupply() external view override returns (uint256) {
return _totalMinted - _totalBurned;
}
/***********************************|
| HootBaseERC721Owners |
|__________________________________*/
function _unsafeOwnerOf(uint256 tokenID_) internal view virtual override returns (address){
if (_exists(tokenID_)) {
return this.ownerOf(tokenID_);
}
return address(0);
}
function exists(uint256 tokenId_) public view virtual override returns (bool){
return _exists(tokenId_);
}
/***********************************|
| ERC721 |
|__________________________________*/
/**
* @notice hook function, used to intercept the transfer of token.
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual override {
require(!paused(), "token transfer paused");
super._beforeTokenTransfer(from, to, tokenId);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
// On the first call to nonReentrant, _notEntered will be true
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
_;
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
}
// SPDX-License-Identifier: MIT
/*
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
+ +
+ +
. .^!!~: .^!!^. .
. :7Y5Y7^. .^!J5Y7^. .
. :!5B#GY7^. .^!JP##P7: .
. 7777??! ~????7. :5@@@@&GY7^. .^!JG#@@@@G^ 7????????????^ ~????77 .
. @@@@@G P@@@@@: J#@@@@@@@@@@&G57~. .^7YG#@@@@@@@@@@&5: #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: :B@@@@@BJG@@@@@@@@@&B5?~:^7YG#@@@@@@@@BJP@@@ @@&!! #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: .B@@@@#!!J@@@@@@@@@@@@@@@&@@@@@@@@@@@@@@@P ^G@@@@@~. ^~~~~~^J@ @@@@??:~~~~~ .
. @@@@@B^^^^^^^^. 5@@@@@: J@@@@&^ G@7?@@@@@@&@@@@@@@@@@@&@J7&@@@@@#. .B@@@@P !@@@@@? .
. @@@@@@@@@@@@@@! 5@@@@@: 5@@@@B ^B&&@@@@@#!#@@@@@@@@@@7G&&@@@@@#! Y@@@@#. !@@@@@? .
. @@@@@@@@@@@@@@! P@@@@@: ?@@@@&^ !YPGPY! !@@@@@Y&@@@@Y ~YPGP57. .B@@@@P !@@@@@? .
. @@@@@B~~~~~~~!!.?GPPGP: .B@@@@&7 ?&@@@@P ?@@@@@5. ~B@@@@&^ !@@@@@? .
. @@@@@G ^~~~~~. :G@@@@@BY7~^^~75#@@@@@5. J@@@@@&P?~^^^!JG@@@@@#~ !@@@@@? .
. @@@@@G 5@@@@@: ?B@@@@@@@@@@@@@@@@B!! ^P@@@@@@@@@@@@@@@@&Y !@@@@@? .
. @@@@@G. P@@@@@: !YB&@@@@@@@@&BY~ ^JG#@@@@@@@@&#P7. !@@@@@? .
. YYYYY7 !YJJJJ. :~!7??7!^: .^!7??7!~: ^YJJJY~ .
. .
. .
. .
. ……………… ………………………………………… ………………………………………… .
. PBGGB?? 7&######&5 :B##############&5 .G#################^ .
. &@@@@5 ?@@@@@@@@@@ :@@@@@@@@@@@@@@@@@G &@@@@@@@@@@@@ @@@@@^ .
. PBBBBJ !!!!!JPPPPPPPPPY !!!!! :&@@@@P?JJJJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJJJJJJ. .
. ~~~~~: .#@@@@Y ~@@@@@~ :&@@@@7 ~@@@&. ^@@@@. .
. #@@@@Y .#@@@@G?JJJJJJJJ?5@@@@@~ :&@@@@7 !JJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJ!! .
. #@@@@Y .#@@@@@@@@@@@@@@@@@@@@@@~ :&@@@@7 G@@@@@@@@G &@@ @@@@@@@@@@P .
. #@@@@Y .#@@@@&##########&@@@@@~ :&@@@@7 7YYYYYYYYJ???7 JYYYYYYYYYYYYJ???7 .
. #@@@@Y .#@@@@5 ........ !@@@@@~ :&@@@@7 ~@@@&. !@@@# .
. #@@@@#5PPPPPPPPPJJ .#@@@@Y !@@@@@~ :&@@@@P7??????????JYY5J .?????????? ???????JYY5J .
. &@@@@@@@@@@@@@@@@@ .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@@@P .
. PBBBBBBBBBBBBBBBBY .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@ @@5 .
+ +
+ +
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
*/
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol";
import "../../common/HootBase.sol";
import "../../../utils/HootCrypto.sol";
import "../extensions/HootBaseERC721Owners.sol";
/**
* @title HootBaseERC721URIStorage
* @author HootLabs
*/
abstract contract HootBaseERC721URIStorage is
HootBase,
HootBaseERC721Owners,
HootCrypto,
IERC721,
IERC721Metadata
{
using Strings for uint256;
event BaseURIChanged(string uri);
event TokenHashSet(uint256 tokenId, bytes32 tokenHash);
string private _preURI;
// Optional mapping for token URIs
mapping(uint256 => bytes32) private _tokenHashes;
function _baseURI(
uint256 /* tokenId_*/
) internal view virtual returns (string memory) {
return _preURI;
}
/**
* @notice set base URI
* This process is under the supervision of the community.
*/
function setBaseURI(string calldata uri_) external onlyOwner {
_preURI = uri_;
emit BaseURIChanged(uri_);
}
/**
* @notice setTokenHash is used to set the ipfs hash of the token
* This process is under the supervision of the community.
*/
function setTokenHash(uint256 tokenId_, bytes32 tokenHash_)
external
atLeastManager
{
require(this.exists(tokenId_), "token is not exist");
_tokenHashes[tokenId_] = tokenHash_;
emit TokenHashSet(tokenId_, tokenHash_);
}
/**
* @notice setTokenHashBatch is used to set the ipfs hash of the token
* This process is under the supervision of the community.
*/
function setTokenHashBatch(uint256[] calldata tokenIds_, bytes32[] calldata tokenHashes_)
external
atLeastManager
{
require(tokenIds_.length > 0, "no token id");
require(tokenIds_.length == tokenHashes_.length, "token id array and token hash array have different lengths");
unchecked {
for (uint256 i = 0; i < tokenIds_.length; i++) {
uint256 tokenId = tokenIds_[i];
require(this.exists(tokenId), "token is not exist");
_tokenHashes[tokenId] = tokenHashes_[i];
emit TokenHashSet(tokenId, tokenHashes_[i]);
}
}
}
function tokenURI(uint256 tokenId_)
public
view
virtual
override
returns (string memory)
{
require(this.exists(tokenId_), "token is not exist");
bytes32 tokenHash = _tokenHashes[tokenId_];
// If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked).
if (tokenHash == "") {
string memory baseURI = _baseURI(tokenId_);
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI, tokenId_.toString()))
: "";
}
return string(abi.encodePacked("ipfs://", cidv0(tokenHash)));
}
function unsafeTokenURIBatch(uint256[] calldata tokenIds_)
public
view
virtual
returns (string[] memory)
{
string[] memory uris = new string[](tokenIds_.length);
for (uint256 i = 0; i < tokenIds_.length; i++) {
uint256 tokenId = tokenIds_[i];
if (!this.exists(tokenId)) {
uris[i] = "";
continue;
}
bytes32 tokenHash = _tokenHashes[tokenId];
// If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked).
if (tokenHash == "") {
string memory baseURI = _baseURI(tokenId);
uris[i] = bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI, tokenId.toString()))
: "";
continue;
}
uris[i] = string(abi.encodePacked("ipfs://", cidv0(tokenHash)));
}
return uris;
}
}
// SPDX-License-Identifier: MIT
/*
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
+ +
+ +
. .^!!~: .^!!^. .
. :7Y5Y7^. .^!J5Y7^. .
. :!5B#GY7^. .^!JP##P7: .
. 7777??! ~????7. :5@@@@&GY7^. .^!JG#@@@@G^ 7????????????^ ~????77 .
. @@@@@G P@@@@@: J#@@@@@@@@@@&G57~. .^7YG#@@@@@@@@@@&5: #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: :B@@@@@BJG@@@@@@@@@&B5?~:^7YG#@@@@@@@@BJP@@@ @@&!! #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: .B@@@@#!!J@@@@@@@@@@@@@@@&@@@@@@@@@@@@@@@P ^G@@@@@~. ^~~~~~^J@ @@@@??:~~~~~ .
. @@@@@B^^^^^^^^. 5@@@@@: J@@@@&^ G@7?@@@@@@&@@@@@@@@@@@&@J7&@@@@@#. .B@@@@P !@@@@@? .
. @@@@@@@@@@@@@@! 5@@@@@: 5@@@@B ^B&&@@@@@#!#@@@@@@@@@@7G&&@@@@@#! Y@@@@#. !@@@@@? .
. @@@@@@@@@@@@@@! P@@@@@: ?@@@@&^ !YPGPY! !@@@@@Y&@@@@Y ~YPGP57. .B@@@@P !@@@@@? .
. @@@@@B~~~~~~~!!.?GPPGP: .B@@@@&7 ?&@@@@P ?@@@@@5. ~B@@@@&^ !@@@@@? .
. @@@@@G ^~~~~~. :G@@@@@BY7~^^~75#@@@@@5. J@@@@@&P?~^^^!JG@@@@@#~ !@@@@@? .
. @@@@@G 5@@@@@: ?B@@@@@@@@@@@@@@@@B!! ^P@@@@@@@@@@@@@@@@&Y !@@@@@? .
. @@@@@G. P@@@@@: !YB&@@@@@@@@&BY~ ^JG#@@@@@@@@&#P7. !@@@@@? .
. YYYYY7 !YJJJJ. :~!7??7!^: .^!7??7!~: ^YJJJY~ .
. .
. .
. .
. ……………… ………………………………………… ………………………………………… .
. PBGGB?? 7&######&5 :B##############&5 .G#################^ .
. &@@@@5 ?@@@@@@@@@@ :@@@@@@@@@@@@@@@@@G &@@@@@@@@@@@@ @@@@@^ .
. PBBBBJ !!!!!JPPPPPPPPPY !!!!! :&@@@@P?JJJJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJJJJJJ. .
. ~~~~~: .#@@@@Y ~@@@@@~ :&@@@@7 ~@@@&. ^@@@@. .
. #@@@@Y .#@@@@G?JJJJJJJJ?5@@@@@~ :&@@@@7 !JJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJ!! .
. #@@@@Y .#@@@@@@@@@@@@@@@@@@@@@@~ :&@@@@7 G@@@@@@@@G &@@ @@@@@@@@@@P .
. #@@@@Y .#@@@@&##########&@@@@@~ :&@@@@7 7YYYYYYYYJ???7 JYYYYYYYYYYYYJ???7 .
. #@@@@Y .#@@@@5 ........ !@@@@@~ :&@@@@7 ~@@@&. !@@@# .
. #@@@@#5PPPPPPPPPJJ .#@@@@Y !@@@@@~ :&@@@@P7??????????JYY5J .?????????? ???????JYY5J .
. &@@@@@@@@@@@@@@@@@ .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@@@P .
. PBBBBBBBBBBBBBBBBY .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@ @@5 .
+ +
+ +
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
*/
pragma solidity ^0.8.0;
/**
* @title HootBaseERC721Refund
* @author HootLabs
*/
abstract contract HootBaseERC721Owners {
/***********************************|
| abstract |
|__________________________________*/
function _unsafeOwnerOf(uint256 tokenId_)
internal
view
virtual
returns (address);
/***********************************|
| Core |
|__________________________________*/
function exists(uint256 tokenId_) public view virtual returns (bool) {
return _unsafeOwnerOf(tokenId_) != address(0);
}
function ownersOf(uint256[] calldata tokenIDs_)
external
view
virtual
returns (address[] memory)
{
address[] memory owners = new address[](tokenIDs_.length);
for (uint256 i = 0; i < tokenIDs_.length; ++i) {
owners[i] = _unsafeOwnerOf(tokenIDs_[i]);
}
return owners;
}
}
// SPDX-License-Identifier: MIT
/*
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
+ +
+ +
. .^!!~: .^!!^. .
. :7Y5Y7^. .^!J5Y7^. .
. :!5B#GY7^. .^!JP##P7: .
. 7777??! ~????7. :5@@@@&GY7^. .^!JG#@@@@G^ 7????????????^ ~????77 .
. @@@@@G P@@@@@: J#@@@@@@@@@@&G57~. .^7YG#@@@@@@@@@@&5: #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: :B@@@@@BJG@@@@@@@@@&B5?~:^7YG#@@@@@@@@BJP@@@ @@&!! #@@@@@@@@@@@@@? P@@@@@@ .
. @@@@@G 5@@@@@: .B@@@@#!!J@@@@@@@@@@@@@@@&@@@@@@@@@@@@@@@P ^G@@@@@~. ^~~~~~^J@ @@@@??:~~~~~ .
. @@@@@B^^^^^^^^. 5@@@@@: J@@@@&^ G@7?@@@@@@&@@@@@@@@@@@&@J7&@@@@@#. .B@@@@P !@@@@@? .
. @@@@@@@@@@@@@@! 5@@@@@: 5@@@@B ^B&&@@@@@#!#@@@@@@@@@@7G&&@@@@@#! Y@@@@#. !@@@@@? .
. @@@@@@@@@@@@@@! P@@@@@: ?@@@@&^ !YPGPY! !@@@@@Y&@@@@Y ~YPGP57. .B@@@@P !@@@@@? .
. @@@@@B~~~~~~~!!.?GPPGP: .B@@@@&7 ?&@@@@P ?@@@@@5. ~B@@@@&^ !@@@@@? .
. @@@@@G ^~~~~~. :G@@@@@BY7~^^~75#@@@@@5. J@@@@@&P?~^^^!JG@@@@@#~ !@@@@@? .
. @@@@@G 5@@@@@: ?B@@@@@@@@@@@@@@@@B!! ^P@@@@@@@@@@@@@@@@&Y !@@@@@? .
. @@@@@G. P@@@@@: !YB&@@@@@@@@&BY~ ^JG#@@@@@@@@&#P7. !@@@@@? .
. YYYYY7 !YJJJJ. :~!7??7!^: .^!7??7!~: ^YJJJY~ .
. .
. .
. .
. ……………… ………………………………………… ………………………………………… .
. PBGGB?? 7&######&5 :B##############&5 .G#################^ .
. &@@@@5 ?@@@@@@@@@@ :@@@@@@@@@@@@@@@@@G &@@@@@@@@@@@@ @@@@@^ .
. PBBBBJ !!!!!JPPPPPPPPPY !!!!! :&@@@@P?JJJJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJJJJJJ. .
. ~~~~~: .#@@@@Y ~@@@@@~ :&@@@@7 ~@@@&. ^@@@@. .
. #@@@@Y .#@@@@G?JJJJJJJJ?5@@@@@~ :&@@@@7 !JJJJJJJJJJJJ? :JJJJJJJJJJJJJJJJJ!! .
. #@@@@Y .#@@@@@@@@@@@@@@@@@@@@@@~ :&@@@@7 G@@@@@@@@G &@@ @@@@@@@@@@P .
. #@@@@Y .#@@@@&##########&@@@@@~ :&@@@@7 7YYYYYYYYJ???7 JYYYYYYYYYYYYJ???7 .
. #@@@@Y .#@@@@5 ........ !@@@@@~ :&@@@@7 ~@@@&. !@@@# .
. #@@@@#5PPPPPPPPPJJ .#@@@@Y !@@@@@~ :&@@@@P7??????????JYY5J .?????????? ???????JYY5J .
. &@@@@@@@@@@@@@@@@@ .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@@@P .
. PBBBBBBBBBBBBBBBBY .#@@@@Y !@@@@@~ :&@@@@@@@@@@@@@@@@@G ^@@@@@@@@@@@@@@@ @@5 .
+ +
+ +
+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
*/
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/introspection/IERC165.sol";
contract HootBase is ReentrancyGuard, Pausable, Ownable {
event PermissionChanged(address indexed addr, uint8 permission);
event Deposit(address indexed account, uint256 amount);
event Withdraw(address indexed account, uint256 amount);
event ContractParsed();
event ContractUnparsed();
event ContractSealed();
uint8 public constant NO_PERMISSION = 0;
uint8 public constant MANAGER = 1;
uint8 public constant MAINTAINER = 2;
uint8 public constant OPERATOR = 3;
mapping(address => uint8) private _permissions;
address[] maintainers;
bool public contractSealed = false;
/***********************************|
| Config |
|__________________________________*/
/**
* @notice setManagerAddress is used to allow the issuer to modify the maintainerAddress
*/
function setPermission(address address_, uint8 permission_)
external
onlyOwner
{
if (permission_ == NO_PERMISSION) {
delete _permissions[address_];
} else {
_permissions[address_] = permission_;
}
emit PermissionChanged(address_, permission_);
}
function getPermissions()
external
view
atLeastManager
returns (address[] memory, uint8[] memory)
{
uint8[] memory permissions = new uint8[](maintainers.length);
unchecked {
for (uint256 i = 0; i < maintainers.length; i++) {
permissions[i] = _permissions[maintainers[i]];
}
}
return (maintainers, permissions);
}
function getPermission(address address_) external view returns (uint8) {
return _permissions[address_];
}
/***********************************|
| Core |
|__________________________________*/
/**
* @notice issuer deposit ETH into the contract. only issuer have permission
*/
function deposit() external payable atLeastMaintainer nonReentrant {
emit Deposit(_msgSender(), msg.value);
}
/**
* issuer withdraws the ETH temporarily stored in the contract through this method.
*/
function withdraw(uint256 w) external onlyOwner nonReentrant {
uint256 balance = address(this).balance;
require(w <= balance, "balance is not enough");
payable(_msgSender()).transfer(w);
emit Withdraw(_msgSender(), w);
}
/***********************************|
| Basic |
|__________________________________*/
/**
* @notice for the purpose of protecting user assets, under extreme conditions,
* the circulation of all tokens in the contract needs to be frozen.
* This process is under the supervision of the community.
*/
function emergencyPause() external atLeastManager notSealed {
_pause();
emit ContractParsed();
}
/**
* @notice unpause the contract
*/
function unpause() external atLeastManager notSealed {
_unpause();
emit ContractUnparsed();
}
/**
* @notice when the project is stable enough, the issuer will call sealContract
* to give up the permission to call emergencyPause and unpause.
*/
function sealContract() external onlyOwner {
contractSealed = true;
emit ContractSealed();
}
/***********************************|
| Modifier |
|__________________________________*/
/**
* @notice only owner or manager has the permission to call this method
*/
modifier atLeastManager() {
uint8 permission = _permissions[_msgSender()];
require(
owner() == _msgSender() || permission == MANAGER,
"not authorized"
);
_;
}
/**
* @notice only owner, manager or maintainer has the permission to call this method
*/
modifier atLeastMaintainer() {
uint8 permission = _permissions[_msgSender()];
require(
owner() == _msgSender() ||
permission == MAINTAINER ||
permission == MANAGER,
"not authorized"
);
_;
}
/**
* @notice only owner, manager or maintainer or operator has the permission to call this method
*/
modifier atLeastOperator() {
uint8 permission = _permissions[_msgSender()];
require(
owner() == _msgSender() ||
permission == MAINTAINER ||
permission == MANAGER ||
permission == OPERATOR,
"not authorized"
);
_;
}
/**
* @notice for security reasons, CA is not allowed to call sensitive methods.
*/
modifier callerIsUser() {
require(tx.origin == _msgSender(), "caller is another contract");
_;
}
/**
* @notice function call is only allowed when the contract has not been sealed
*/
modifier notSealed() {
require(!contractSealed, "contract sealed");
_;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Metadata is IERC721 {
/**
* @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);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @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
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 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
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which allows children to implement an emergency stop
* mechanism that can be triggered by an authorized account.
*
* This module is used through inheritance. It will make available the
* modifiers `whenNotPaused` and `whenPaused`, which can be applied to
* the functions of your contract. Note that they will not be pausable by
* simply including this module, only once the modifiers are put in place.
*/
abstract contract Pausable is Context {
/**
* @dev Emitted when the pause is triggered by `account`.
*/
event Paused(address account);
/**
* @dev Emitted when the pause is lifted by `account`.
*/
event Unpaused(address account);
bool private _paused;
/**
* @dev Initializes the contract in unpaused state.
*/
constructor() {
_paused = false;
}
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*
* Requirements:
*
* - The contract must not be paused.
*/
modifier whenNotPaused() {
_requireNotPaused();
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*
* Requirements:
*
* - The contract must be paused.
*/
modifier whenPaused() {
_requirePaused();
_;
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view virtual returns (bool) {
return _paused;
}
/**
* @dev Throws if the contract is paused.
*/
function _requireNotPaused() internal view virtual {
require(!paused(), "Pausable: paused");
}
/**
* @dev Throws if the contract is not paused.
*/
function _requirePaused() internal view virtual {
require(paused(), "Pausable: not paused");
}
/**
* @dev Triggers stopped state.
*
* Requirements:
*
* - The contract must not be paused.
*/
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
/**
* @dev Returns to normal state.
*
* Requirements:
*
* - The contract must be paused.
*/
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol)
pragma solidity ^0.8.0;
import "../IERC721.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Enumerable is IERC721 {
/**
* @dev Returns the total amount of tokens stored by the contract.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns a token ID owned by `owner` at a given `index` of its token list.
* Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
*/
function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);
/**
* @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
* Use along with {totalSupply} to enumerate all tokens.
*/
function tokenByIndex(uint256 index) external view returns (uint256);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./extensions/IERC721Metadata.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/Strings.sol";
import "../../utils/introspection/ERC165.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
using Address for address;
using Strings for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: address zero is not a valid owner");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _owners[tokenId];
require(owner != address(0), "ERC721: invalid token ID");
return owner;
}
/**
* @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 {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
_requireMinted(tokenId);
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not token owner nor approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
_requireMinted(tokenId);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved");
_safeTransfer(from, to, tokenId, data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _owners[tokenId] != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
address owner = ERC721.ownerOf(tokenId);
return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(
address to,
uint256 tokenId,
bytes memory data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId);
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId);
// Clear approvals
_approve(address(0), tokenId);
_balances[owner] -= 1;
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_balances[from] -= 1;
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits an {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits an {ApprovalForAll} event.
*/
function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Reverts if the `tokenId` has not been minted yet.
*/
function _requireMinted(uint256 tokenId) internal view virtual {
require(_exists(tokenId), "ERC721: invalid token ID");
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory data
) private returns (bool) {
if (to.isContract()) {
try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
return retval == IERC721Receiver.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
/// @solidity memory-safe-assembly
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, ``from``'s `tokenId` will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
}
// SPDX-License-Identifier: MIT
/*
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+ + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +
*/
pragma solidity ^0.8.0;
/**
* @title HootCrypto
* @author HootLabs
*/
contract HootCrypto {
bytes constant ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz';
/**
* @notice base58 is used to calculate the base58 encoded value of given bytes.
* This algorithm was migrated from github.com/mr-tron/base58 to solidity by our developers.
* Note that it is not yet optimized for gas, so please use it only in read-only scenarios.
* @param data_ bytes.
* @return base58 encoded results.
*/
function base58(bytes memory data_) public pure returns (bytes memory){
uint256 size = data_.length;
uint256 zeroCount;
while (zeroCount < size && data_[zeroCount] == 0) {
zeroCount++;
}
size = zeroCount + (size - zeroCount)*8351/6115+1;
bytes memory slot = new bytes(size);
uint32 carry;
int256 m;
int256 high = int256(size) - 1;
for (uint256 i = 0; i < data_.length; i++) {
m = int256(size - 1);
for (carry = uint8(data_[i]); m > high || carry != 0; m--) {
carry = carry + 256 * uint8(slot[uint256(m)]);
slot[uint256(m)] = bytes1(uint8(carry % 58));
carry /= 58;
}
high = m;
}
uint256 n;
for (n = zeroCount; n < size && slot[n] == 0; n++) {}
size = slot.length - (n - zeroCount);
bytes memory out = new bytes(size);
for (uint256 i = 0; i < size; i++) {
uint256 j = i + n - zeroCount;
out[i] = ALPHABET[uint8(slot[j])];
}
return out;
}
/**
* @notice cidv0 is used to convert sha256 hash to cid(v0) used by IPFS.
* @param sha256Hash_ sha256 hash generated by anything.
* @return IPFS cid that meets the version0 specification.
*/
function cidv0(bytes32 sha256Hash_) public pure returns (string memory) {
bytes memory hashString = new bytes(34);
hashString[0] = 0x12;
hashString[1] = 0x20;
for (uint256 i = 0; i < sha256Hash_.length; i++) {
hashString[i+2] = sha256Hash_[i];
}
return string(base58(hashString));
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
* @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;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}