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onyb/cDAI.json

Created October 21, 2019 20:38
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Ethereum ABI Decoder - v1
Raw
cDAI.json
[
{
"constant": true,
"inputs": [],
"name": "name",
"outputs": [
{
"name": "",
"type": "string"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x06fdde03"
},
{
"constant": false,
"inputs": [
{
"name": "spender",
"type": "address"
},
{
"name": "amount",
"type": "uint256"
}
],
"name": "approve",
"outputs": [
{
"name": "",
"type": "bool"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0x095ea7b3"
},
{
"constant": false,
"inputs": [
{
"name": "repayAmount",
"type": "uint256"
}
],
"name": "repayBorrow",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0x0e752702"
},
{
"constant": true,
"inputs": [],
"name": "reserveFactorMantissa",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x173b9904"
},
{
"constant": false,
"inputs": [
{
"name": "account",
"type": "address"
}
],
"name": "borrowBalanceCurrent",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0x17bfdfbc"
},
{
"constant": true,
"inputs": [],
"name": "totalSupply",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x18160ddd"
},
{
"constant": true,
"inputs": [],
"name": "exchangeRateStored",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x182df0f5"
},
{
"constant": false,
"inputs": [
{
"name": "src",
"type": "address"
},
{
"name": "dst",
"type": "address"
},
{
"name": "amount",
"type": "uint256"
}
],
"name": "transferFrom",
"outputs": [
{
"name": "",
"type": "bool"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0x23b872dd"
},
{
"constant": false,
"inputs": [
{
"name": "borrower",
"type": "address"
},
{
"name": "repayAmount",
"type": "uint256"
}
],
"name": "repayBorrowBehalf",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0x2608f818"
},
{
"constant": true,
"inputs": [],
"name": "pendingAdmin",
"outputs": [
{
"name": "",
"type": "address"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x26782247"
},
{
"constant": true,
"inputs": [],
"name": "decimals",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x313ce567"
},
{
"constant": false,
"inputs": [
{
"name": "owner",
"type": "address"
}
],
"name": "balanceOfUnderlying",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0x3af9e669"
},
{
"constant": true,
"inputs": [],
"name": "getCash",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x3b1d21a2"
},
{
"constant": false,
"inputs": [
{
"name": "newComptroller",
"type": "address"
}
],
"name": "_setComptroller",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0x4576b5db"
},
{
"constant": true,
"inputs": [],
"name": "totalBorrows",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x47bd3718"
},
{
"constant": true,
"inputs": [],
"name": "comptroller",
"outputs": [
{
"name": "",
"type": "address"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x5fe3b567"
},
{
"constant": false,
"inputs": [
{
"name": "reduceAmount",
"type": "uint256"
}
],
"name": "_reduceReserves",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0x601a0bf1"
},
{
"constant": true,
"inputs": [],
"name": "initialExchangeRateMantissa",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x675d972c"
},
{
"constant": true,
"inputs": [],
"name": "accrualBlockNumber",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x6c540baf"
},
{
"constant": true,
"inputs": [],
"name": "underlying",
"outputs": [
{
"name": "",
"type": "address"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x6f307dc3"
},
{
"constant": true,
"inputs": [
{
"name": "owner",
"type": "address"
}
],
"name": "balanceOf",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x70a08231"
},
{
"constant": false,
"inputs": [],
"name": "totalBorrowsCurrent",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0x73acee98"
},
{
"constant": false,
"inputs": [
{
"name": "redeemAmount",
"type": "uint256"
}
],
"name": "redeemUnderlying",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0x852a12e3"
},
{
"constant": true,
"inputs": [],
"name": "totalReserves",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x8f840ddd"
},
{
"constant": true,
"inputs": [],
"name": "symbol",
"outputs": [
{
"name": "",
"type": "string"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x95d89b41"
},
{
"constant": true,
"inputs": [
{
"name": "account",
"type": "address"
}
],
"name": "borrowBalanceStored",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0x95dd9193"
},
{
"constant": false,
"inputs": [
{
"name": "mintAmount",
"type": "uint256"
}
],
"name": "mint",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0xa0712d68"
},
{
"constant": false,
"inputs": [],
"name": "accrueInterest",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0xa6afed95"
},
{
"constant": false,
"inputs": [
{
"name": "dst",
"type": "address"
},
{
"name": "amount",
"type": "uint256"
}
],
"name": "transfer",
"outputs": [
{
"name": "",
"type": "bool"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0xa9059cbb"
},
{
"constant": true,
"inputs": [],
"name": "borrowIndex",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0xaa5af0fd"
},
{
"constant": true,
"inputs": [],
"name": "supplyRatePerBlock",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0xae9d70b0"
},
{
"constant": false,
"inputs": [
{
"name": "liquidator",
"type": "address"
},
{
"name": "borrower",
"type": "address"
},
{
"name": "seizeTokens",
"type": "uint256"
}
],
"name": "seize",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0xb2a02ff1"
},
{
"constant": false,
"inputs": [
{
"name": "newPendingAdmin",
"type": "address"
}
],
"name": "_setPendingAdmin",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0xb71d1a0c"
},
{
"constant": false,
"inputs": [],
"name": "exchangeRateCurrent",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0xbd6d894d"
},
{
"constant": true,
"inputs": [
{
"name": "account",
"type": "address"
}
],
"name": "getAccountSnapshot",
"outputs": [
{
"name": "",
"type": "uint256"
},
{
"name": "",
"type": "uint256"
},
{
"name": "",
"type": "uint256"
},
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0xc37f68e2"
},
{
"constant": false,
"inputs": [
{
"name": "borrowAmount",
"type": "uint256"
}
],
"name": "borrow",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0xc5ebeaec"
},
{
"constant": false,
"inputs": [
{
"name": "redeemTokens",
"type": "uint256"
}
],
"name": "redeem",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0xdb006a75"
},
{
"constant": true,
"inputs": [
{
"name": "owner",
"type": "address"
},
{
"name": "spender",
"type": "address"
}
],
"name": "allowance",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0xdd62ed3e"
},
{
"constant": false,
"inputs": [],
"name": "_acceptAdmin",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0xe9c714f2"
},
{
"constant": false,
"inputs": [
{
"name": "newInterestRateModel",
"type": "address"
}
],
"name": "_setInterestRateModel",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0xf2b3abbd"
},
{
"constant": true,
"inputs": [],
"name": "interestRateModel",
"outputs": [
{
"name": "",
"type": "address"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0xf3fdb15a"
},
{
"constant": false,
"inputs": [
{
"name": "borrower",
"type": "address"
},
{
"name": "repayAmount",
"type": "uint256"
},
{
"name": "cTokenCollateral",
"type": "address"
}
],
"name": "liquidateBorrow",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0xf5e3c462"
},
{
"constant": true,
"inputs": [],
"name": "admin",
"outputs": [
{
"name": "",
"type": "address"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0xf851a440"
},
{
"constant": true,
"inputs": [],
"name": "borrowRatePerBlock",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0xf8f9da28"
},
{
"constant": false,
"inputs": [
{
"name": "newReserveFactorMantissa",
"type": "uint256"
}
],
"name": "_setReserveFactor",
"outputs": [
{
"name": "",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "function",
"signature": "0xfca7820b"
},
{
"constant": true,
"inputs": [],
"name": "isCToken",
"outputs": [
{
"name": "",
"type": "bool"
}
],
"payable": false,
"stateMutability": "view",
"type": "function",
"signature": "0xfe9c44ae"
},
{
"inputs": [
{
"name": "underlying_",
"type": "address"
},
{
"name": "comptroller_",
"type": "address"
},
{
"name": "interestRateModel_",
"type": "address"
},
{
"name": "initialExchangeRateMantissa_",
"type": "uint256"
},
{
"name": "name_",
"type": "string"
},
{
"name": "symbol_",
"type": "string"
},
{
"name": "decimals_",
"type": "uint256"
}
],
"payable": false,
"stateMutability": "nonpayable",
"type": "constructor",
"signature": "constructor"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"name": "interestAccumulated",
"type": "uint256"
},
{
"indexed": false,
"name": "borrowIndex",
"type": "uint256"
},
{
"indexed": false,
"name": "totalBorrows",
"type": "uint256"
}
],
"name": "AccrueInterest",
"type": "event",
"signature": "0x875352fb3fadeb8c0be7cbbe8ff761b308fa7033470cd0287f02f3436fd76cb9"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"name": "minter",
"type": "address"
},
{
"indexed": false,
"name": "mintAmount",
"type": "uint256"
},
{
"indexed": false,
"name": "mintTokens",
"type": "uint256"
}
],
"name": "Mint",
"type": "event",
"signature": "0x4c209b5fc8ad50758f13e2e1088ba56a560dff690a1c6fef26394f4c03821c4f"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"name": "redeemer",
"type": "address"
},
{
"indexed": false,
"name": "redeemAmount",
"type": "uint256"
},
{
"indexed": false,
"name": "redeemTokens",
"type": "uint256"
}
],
"name": "Redeem",
"type": "event",
"signature": "0xe5b754fb1abb7f01b499791d0b820ae3b6af3424ac1c59768edb53f4ec31a929"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"name": "borrower",
"type": "address"
},
{
"indexed": false,
"name": "borrowAmount",
"type": "uint256"
},
{
"indexed": false,
"name": "accountBorrows",
"type": "uint256"
},
{
"indexed": false,
"name": "totalBorrows",
"type": "uint256"
}
],
"name": "Borrow",
"type": "event",
"signature": "0x13ed6866d4e1ee6da46f845c46d7e54120883d75c5ea9a2dacc1c4ca8984ab80"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"name": "payer",
"type": "address"
},
{
"indexed": false,
"name": "borrower",
"type": "address"
},
{
"indexed": false,
"name": "repayAmount",
"type": "uint256"
},
{
"indexed": false,
"name": "accountBorrows",
"type": "uint256"
},
{
"indexed": false,
"name": "totalBorrows",
"type": "uint256"
}
],
"name": "RepayBorrow",
"type": "event",
"signature": "0x1a2a22cb034d26d1854bdc6666a5b91fe25efbbb5dcad3b0355478d6f5c362a1"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"name": "liquidator",
"type": "address"
},
{
"indexed": false,
"name": "borrower",
"type": "address"
},
{
"indexed": false,
"name": "repayAmount",
"type": "uint256"
},
{
"indexed": false,
"name": "cTokenCollateral",
"type": "address"
},
{
"indexed": false,
"name": "seizeTokens",
"type": "uint256"
}
],
"name": "LiquidateBorrow",
"type": "event",
"signature": "0x298637f684da70674f26509b10f07ec2fbc77a335ab1e7d6215a4b2484d8bb52"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"name": "oldPendingAdmin",
"type": "address"
},
{
"indexed": false,
"name": "newPendingAdmin",
"type": "address"
}
],
"name": "NewPendingAdmin",
"type": "event",
"signature": "0xca4f2f25d0898edd99413412fb94012f9e54ec8142f9b093e7720646a95b16a9"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"name": "oldAdmin",
"type": "address"
},
{
"indexed": false,
"name": "newAdmin",
"type": "address"
}
],
"name": "NewAdmin",
"type": "event",
"signature": "0xf9ffabca9c8276e99321725bcb43fb076a6c66a54b7f21c4e8146d8519b417dc"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"name": "oldComptroller",
"type": "address"
},
{
"indexed": false,
"name": "newComptroller",
"type": "address"
}
],
"name": "NewComptroller",
"type": "event",
"signature": "0x7ac369dbd14fa5ea3f473ed67cc9d598964a77501540ba6751eb0b3decf5870d"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"name": "oldInterestRateModel",
"type": "address"
},
{
"indexed": false,
"name": "newInterestRateModel",
"type": "address"
}
],
"name": "NewMarketInterestRateModel",
"type": "event",
"signature": "0xedffc32e068c7c95dfd4bdfd5c4d939a084d6b11c4199eac8436ed234d72f926"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"name": "oldReserveFactorMantissa",
"type": "uint256"
},
{
"indexed": false,
"name": "newReserveFactorMantissa",
"type": "uint256"
}
],
"name": "NewReserveFactor",
"type": "event",
"signature": "0xaaa68312e2ea9d50e16af5068410ab56e1a1fd06037b1a35664812c30f821460"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"name": "admin",
"type": "address"
},
{
"indexed": false,
"name": "reduceAmount",
"type": "uint256"
},
{
"indexed": false,
"name": "newTotalReserves",
"type": "uint256"
}
],
"name": "ReservesReduced",
"type": "event",
"signature": "0x3bad0c59cf2f06e7314077049f48a93578cd16f5ef92329f1dab1420a99c177e"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"name": "error",
"type": "uint256"
},
{
"indexed": false,
"name": "info",
"type": "uint256"
},
{
"indexed": false,
"name": "detail",
"type": "uint256"
}
],
"name": "Failure",
"type": "event",
"signature": "0x45b96fe442630264581b197e84bbada861235052c5a1aadfff9ea4e40a969aa0"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"name": "from",
"type": "address"
},
{
"indexed": true,
"name": "to",
"type": "address"
},
{
"indexed": false,
"name": "amount",
"type": "uint256"
}
],
"name": "Transfer",
"type": "event",
"signature": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"name": "owner",
"type": "address"
},
{
"indexed": true,
"name": "spender",
"type": "address"
},
{
"indexed": false,
"name": "amount",
"type": "uint256"
}
],
"name": "Approval",
"type": "event",
"signature": "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925"
}
]
Raw
decoder.py
import json
import re
from pathlib import Path
BASE_DIR = Path(__file__).parent
class Contract:
def __init__(self, name: str):
with open(BASE_DIR / f"{name}.json") as f:
self.abi = json.load(f)
def find_function(self, signature: str):
return next(
(
el
for el in self.abi
if el["type"] == "function" and el["signature"] == signature
),
None,
)
def decode(token, data: str):
contract = Contract(token)
# Convert the hexadecimal data into bytes for easy indexing
data = bytes.fromhex(data.lstrip("0x"))
# The first 4 bytes constitute the signature
signature = f"0x{data[: 4].hex()}"
data = data[4:]
func = contract.find_function(signature)
if not func:
raise ValueError("Encoded function is unrecognized by the ABI")
args_prototype = ",".join(
f"{input_['type']} {input_['name']}" for input_ in func["inputs"]
)
print(
f"Function prototype for signature {signature}: "
f'{func["name"]}({args_prototype})'
)
for input_ in func["inputs"]:
if not data:
raise EOFError
matcher = re.match(r"uint(\d+)", input_["type"])
if not matcher:
raise TypeError
M = int(matcher.group(1))
# Valid types are uint256, uint8, uint32, etc.
if not (0 < M <= 256 and M % 8 == 0):
raise TypeError
byte_value = data[: M // 8]
int_value = int.from_bytes(byte_value, byteorder="big")
data = data[M // 8 :]
print(
f' >>> name={input_["name"]} type={input_["type"]} value={int_value}'
)
print()
if __name__ == "__main__":
# mint(uint256 mintAmount)
# mintAmount=1000000000000000000
decode(
"cDAI",
"0xa0712d680000000000000000000000000000000000000000000000000de0b6b3a7640000",
)
# mint(uint256 mintAmount)
# mintAmount=3000000000000000000
decode(
"cDAI",
"0xa0712d6800000000000000000000000000000000000000000000000029a2241af62c0000",
)
# redeemUnderlying(uint256 redeemAmount)
# redeemAmount=3000022210000000000
decode(
"cDAI",
"0x852a12e300000000000000000000000000000000000000000000000029a2384e21551400",
)
# redeem(uint256 redeemTokens)
# redeemTokens=4484139013794
decode(
"cDAI",
"0xdb006a75000000000000000000000000000000000000000000000000000004140b8356a2",
)
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