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POLC [Polka City] Token

About POLC


Token 15 months
CoinGecko 19 months
CoinMarketCap 19 months
white paper

Polkacity Is A New Fully Autonomous Contract Based NFT Platform That Allows You To Invest In Virtual Assets In The Form Of A Virtual City.

Laser Scorebeta Last Audit: 12 September 2022

Token seems to be legit.

POLCToken.checkTransferLimit(address) (#183-194) uses a dangerous strict equality:
- lastTXBlock[_sender] == block.number (#185)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link

POLCToken.changeManager(address,uint8,bytes) (#375-381) contains a tautology or contradiction:
- require(bool,string)(_index >= 0 && _index <= 2,Invalid index) (#376)
Fix the incorrect comparison by changing the value type or the comparison.

Additional information: link

Pragma version0.8.2 (#3) allows old versions
solc-0.8.2 is not recommended for deployment
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

Additional information: link

Redundant expression "this (#138)" inContext (#132-141)
Remove redundant statements if they congest code but offer no value.

Additional information: link

ECDSA.recover(bytes32,bytes) (#45-78) uses assembly
- INLINE ASM (#58-62)
- INLINE ASM (#67-72)
Do not use evm assembly.

Additional information: link

POLCToken.checkTransferLimit(address) (#183-194) compares to a boolean constant:
-limitTransactions == true && contractsWhiteList[_sender] != true (#184)
POLCToken.mint(address,uint256) (#307-312) compares to a boolean constant:
-require(bool,string)(minters[msg.sender] == true,Not allowed) (#308)
POLCToken.verifyApproval(bytes32,bytes) (#366-373) compares to a boolean constant:
-require(bool,string)(executedTask[_taskHash] == false,Task already executed) (#367)
Remove the equality to the boolean constant.

Additional information: link

Context._msgData() (#137-140) is never used and should be removed
ECDSA.toTypedDataHash(bytes32,bytes32) (#127-129) is never used and should be removed
Remove unused functions.

Additional information: link

Parameter POLCToken.checkTransferLimit(address)._sender (#183) is not in mixedCase
Parameter POLCToken.burn(uint256)._value (#259) is not in mixedCase
Parameter POLCToken.approveAndCall(address,uint256,bytes)._spender (#264) is not in mixedCase
Parameter POLCToken.approveAndCall(address,uint256,bytes)._value (#264) is not in mixedCase
Parameter POLCToken.approveAndCall(address,uint256,bytes)._extraData (#264) is not in mixedCase
Parameter POLCToken.enableTXLimit(bytes)._sig (#272) is not in mixedCase
Parameter POLCToken.disableTXLimit(bytes)._sig (#279) is not in mixedCase
Parameter POLCToken.includeWhiteList(address,bytes)._contractAddress (#286) is not in mixedCase
Parameter POLCToken.includeWhiteList(address,bytes)._sig (#286) is not in mixedCase
Parameter POLCToken.removeWhiteList(address,bytes)._contractAddress (#293) is not in mixedCase
Parameter POLCToken.removeWhiteList(address,bytes)._sig (#293) is not in mixedCase
Parameter POLCToken.setMinter(address,bool,bytes)._minterAddress (#300) is not in mixedCase
Parameter POLCToken.setMinter(address,bool,bytes)._canMint (#300) is not in mixedCase
Parameter POLCToken.setMinter(address,bool,bytes)._sig (#300) is not in mixedCase
Parameter POLCToken.mint(address,uint256)._to (#307) is not in mixedCase
Parameter POLCToken.mint(address,uint256)._amount (#307) is not in mixedCase
Parameter POLCToken.verifyApproval(bytes32,bytes)._taskHash (#366) is not in mixedCase
Parameter POLCToken.verifyApproval(bytes32,bytes)._sig (#366) is not in mixedCase
Parameter POLCToken.changeManager(address,uint8,bytes)._manager (#375) is not in mixedCase
Parameter POLCToken.changeManager(address,uint8,bytes)._index (#375) is not in mixedCase
Parameter POLCToken.changeManager(address,uint8,bytes)._sig (#375) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

POLCToken.constructor() (#171-181) uses literals with too many digits:
- maxSupply = 250000000000000000000000000 (#175)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

name() should be declared external:
- POLCToken.name() (#196-198)
symbol() should be declared external:
- POLCToken.symbol() (#200-202)
decimals() should be declared external:
- POLCToken.decimals() (#204-206)
totalSupply() should be declared external:
- POLCToken.totalSupply() (#208-210)
balanceOf(address) should be declared external:
- POLCToken.balanceOf(address) (#212-214)
transfer(address,uint256) should be declared external:
- POLCToken.transfer(address,uint256) (#216-220)
allowance(address,address) should be declared external:
- POLCToken.allowance(address,address) (#222-224)
approve(address,uint256) should be declared external:
- POLCToken.approve(address,uint256) (#226-229)
transferFrom(address,address,uint256) should be declared external:
- POLCToken.transferFrom(address,address,uint256) (#231-242)
increaseAllowance(address,uint256) should be declared external:
- POLCToken.increaseAllowance(address,uint256) (#244-247)
decreaseAllowance(address,uint256) should be declared external:
- POLCToken.decreaseAllowance(address,uint256) (#249-257)
burn(uint256) should be declared external:
- POLCToken.burn(uint256) (#259-262)
approveAndCall(address,uint256,bytes) should be declared external:
- POLCToken.approveAndCall(address,uint256,bytes) (#264-270)
enableTXLimit(bytes) should be declared external:
- POLCToken.enableTXLimit(bytes) (#272-277)
disableTXLimit(bytes) should be declared external:
- POLCToken.disableTXLimit(bytes) (#279-284)
includeWhiteList(address,bytes) should be declared external:
- POLCToken.includeWhiteList(address,bytes) (#286-291)
removeWhiteList(address,bytes) should be declared external:
- POLCToken.removeWhiteList(address,bytes) (#293-298)
setMinter(address,bool,bytes) should be declared external:
- POLCToken.setMinter(address,bool,bytes) (#300-305)
mint(address,uint256) should be declared external:
- POLCToken.mint(address,uint256) (#307-312)
changeManager(address,uint8,bytes) should be declared external:
- POLCToken.changeManager(address,uint8,bytes) (#375-381)
Use the external attribute for functions never called from the contract.

Additional information: link

No disclosed threats

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Token is not listed at Mobula.Finance

Additional information: link

No disclosed threats

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