以太坊实战【地址监控三】

token交易测试

布置一个代币合约（可以参考以太坊研究系列贴子），帐号转一次代币VF，用已经实现的方法，调用eth_getBlockByNumber取到的交易数据如下：

"transactions":[{"blockHash":"0x51c9e0e10bfdc01110ff239e9c7bddca68b102741f7b9a3d87dd624a83f9d826","blockNumber":"0x2e10","from":"0x54b865714068f5f03574ace39a1f3279c4e83e2c","gas":"0x21905","gasPrice":"0x430e23400","hash":"0x781942bb5acfed62689ba068e975989461d5b2ef657dd1eff7057bc56de464ce","input":"0xa9059cbb000000000000000000000000823e1c4acbfc6527a6210e9bb9b4d5a45dc9c9a40000000000000000000000000000000000000000000000000000000000000058","nonce":"0x33","to":"0xf66448735c78389acd4834cf7b94d1b7c0d2a91a","transactionIndex":"0x0","value":"0x0","v":"0x42","r":"0xabf55940fbaede52a2706c3c7405e21af42577d8da35446dcf7bbf362ad151fd","s":"0x65e27dca91550fdd2ad8d001c67ebdda228a222d97ccf8ba357d62914192e5a7"}]

我是从地址 0x54b865714068f5F03574ACe39a1F3279C4E83E2c 转代币VF，转到地址 0x823e1C4acBfC6527a6210E9BB9B4d5a45DC9C9A4，从交易数据from字段可以看到发送地址是一样的，但是to地址 0xf66448735c78389acd4834cf7b94d1b7c0d2a91a 并不是我转代币的目标地址。

什么原因呢？以太坊上代币只是一个智能合约，对代币的所有操作都是对智能合约的调用，钱包转代币时实际的操作是调用智能合约的transfer函数，在mist的交易记录里也可以看到，0xf66448735c78389acd4834cf7b94d1b7c0d2a91a 这个地址就是VF智能合约的地址。

那再看看从交易数据有没有办法解析出是哪种代币，同时交易的代币是多少呢？理论上来说，to地址应该是代币合约地址，input中的数据应该包含了调用等数据，解析input这种二进制数据合适吗？

token监控

大概找到了几种方法查询token数量，可以进行监控可能：

解析以太坊数据包，并解析合约调用数据

在上面交易记录里，input数据如下：

"input":"0xa9059cbb000000000000000000000000823e1c4acbfc6527a6210e9bb9b4d5a45dc9c9a40000000000000000000000000000000000000000000000000000000000000058

解析后格式：

Function: transfer(address _to, uint256 _value) MethodID: 0xa9059cbb [0]: 000000000000000000000000823e1c4acbfc6527a6210e9bb9b4d5a45dc9c9a4 [1]: 0000000000000000000000000000000000000000000000000000000000000058

通过合约方法调用web3js

既然token是智能合约，而且这些token合约基本是erc20标准的合约，那我们查询到合约地址、abi，就可以直接调用合约的balanceOf()取得指定地址的代币数量，另外合约一般都有Transfer事件，也可以监控交易事件。

etherscan接口调用

内部实现应该也是调用合约接口，只是提供web式调用

totalSignatures: 189 0: 0xf2c298be => register(string) 1: 0x861731d5 => () 2: 0x095ea7b3 => approve(address,uint256) 3: 0x23b872dd => transferFrom(address,address,uint256) 4: 0xa9059cbb => transfer(address,uint256) 5: 0x13af4035 => setOwner(address) 6: 0x79ce9fac => transfer(bytes32,address) 7: 0xeadf9760 => setUint(bytes32,string,uint256) 8: 0x47448e8a => set(bytes32,string,bytes32) 9: 0xf6d339e4 => setAddress(bytes32,string,address) 10: 0x69fe0e2d => setFee(uint256) 11: 0x4f39ca59 => drop(bytes32) 12: 0xf25eb5c1 => removeReverse() 13: 0xac4e73f9 => proposeReverse(string,address) 14: 0x432ced04 => reserve(bytes32) 15: 0x3f3935d1 => confirmReverse(string) 16: 0x9890220b => drain() 17: 0x29cbdc86 => buyin(address,uint256) 18: 0x5af36e3e => refund(uint256,uint256) 19: 0xa02b161e => unregister(uint256) 20: 0x66b42dcb => register(address,string,uint256,string) 21: 0xdd93890b => setMeta(uint256,bytes32,bytes32) 22: 0x7b1a547c => registerAs(address,string,uint256,string,address) 23: 0x2196ae0d => hint(bytes32,string,bytes20) 24: 0x7c8c6643 => unhint(bytes32) 25: 0x02f2008d => hintURL(bytes32,string) 26: 0x1a0919dc => unregister(bytes32) 27: 0xc52bd836 => setDappOwner(bytes32,address) 28: 0x91cd242d => setMeta(bytes32,bytes32,bytes32) 29: 0xe1fa8e84 => register(bytes32) 30: 0x4a18695f => triggerPayOut(uint256) 31: 0xd0517bd3 => markSigned() 32: 0xb8b4f1a0 => signContract() 33: 0xb20d30a9 => setDailyLimit(uint256) 34: 0xb75c7dc6 => revoke(bytes32) 35: 0x5c52c2f5 => resetSpentToday() 36: 0x173825d9 => removeOwner(address) 37: 0xcbf0b0c0 => kill(address) 38: 0x2f54bf6e => isOwner(address) 39: 0xb61d27f6 => execute(address,uint256,bytes) 40: 0x797af627 => confirm(bytes32) 41: 0xba51a6df => changeRequirement(uint256) 42: 0xf00d4b5d => changeOwner(address,address) 43: 0x7065cb48 => addOwner(address) 44: 0xca5eb5e1 => setDelegate(address) 45: 0x74a8f103 => revoke(address) 46: 0x338cdca1 => request() 47: 0x3da5c3ce => puzzle(address,bytes32) 48: 0x14253887 => certify(address) 49: 0x26316e58 => setMigrationMaster(address) 50: 0x590e1ae3 => refund() 51: 0x75e2ff65 => setMigrationAgent(address) 52: 0x454b0608 => migrate(uint256) 53: 0xefc81a8c => create() 54: 0x4bb278f3 => finalize() 55: 0xcae9ca51 => approveAndCall(address,uint256,bytes) 56: 0xeb1ff845 => changeId(uint256,uint256,uint256) 57: 0x75090ebf => changeDomain(uint256,uint256,uint256,address) 58: 0x2ebec916 => withdrawalProfit() 59: 0xf2fde38b => transferOwnership(address) 60: 0x523aee69 => changeTokenContract(address) 61: 0x20145328 => changeMelonportAddress(address) 62: 0xdda44b10 => buyRecipient(address,uint8,bytes32,bytes32) 63: 0xd89397b1 => btcsBuyRecipient(address) 64: 0xe5fe4f31 => buy(uint8,bytes32,bytes32) 65: 0xcb3e64fd => unhalt() 66: 0x5ed7ca5b => halt() 67: 0x5de01497 => ownerWithdrawERC20Token(address,uint256) 68: 0x3d6a32bd => createTradeContract(address,uint256,uint256,uint256,bool,bool) 69: 0xc60ccb0e => takerBuyAsset() 70: 0xeff883bd => takerSellAsset(uint256) 71: 0x2170ebf7 => makerWithdrawEther(uint256) 72: 0xcd53a3b7 => makerWithdrawAsset(uint256) 73: 0xc34764cf => makerWithdrawERC20Token(address,uint256) 74: 0x919f8cfc => makerDepositEther() 75: 0x52954e5a => makerTransferAsset(address,uint256) 76: 0xa7abc124 => activate(bool,bool) 77: 0xbe86d5a7 => makerTransferEther(address,uint256) 78: 0xc5e412e5 => createSaleContract(address,uint256,uint256,bool) 79: 0xce5e84a3 => activate(bool) 80: 0x17be89f0 => createTradeContract(address,uint256,uint256,bool) 81: 0x8d92fdf3 => withdrawAsset(uint256) 82: 0x9e281a98 => withdrawToken(address,uint256) 83: 0x2e1a7d4d => withdraw(uint256) 84: 0xa6f2ae3a => buy() 85: 0xbca7a9e2 => lockToken() 86: 0x49606455 => take(bytes32,uint128) 87: 0x093f5198 => make(address,address,uint128,uint128) 88: 0xf09ea2a6 => offer(uint256,address,uint256,address) 89: 0xd6febde8 => buy(uint256,uint256) 90: 0x779997c3 => bump(bytes32) 91: 0x40e58ee5 => cancel(uint256) 92: 0xb4f9b6c8 => kill(bytes32) 93: 0xb4427263 => createTokens() 94: 0xa91ee0dc => setRegistry(address) 95: 0xb660f4c0 => setTargetDragoDAO(address,address) 96: 0xf08d29d5 => createDrago(string,string) 97: 0x74fc5df7 => changeDragoDAO(address) 98: 0x1c31f710 => setBeneficiary(address) 99: 0x0bc1f0d5 => changeGabcoinDAO(address) 100: 0xe96e7a7e => createGabcoin(string,string) 101: 0x05db8f74 => setTargetGabcoinDAO(address,address) 102: 0xbb60160e => setExchange(address,address) 103: 0xf3fef3a3 => withdraw(address,uint256) 104: 0x92a0006c => trade(address,uint256,address,uint256,uint256,address,uint256) 105: 0x808187e5 => finalize(address,uint24) 106: 0x5ae11d5d => order(address,uint256,address,uint256,uint256) 107: 0x279a7094 => orderCFD(address,bool,uint32,uint128) 108: 0xd19d5138 => setCfdMaxLeverage(address,uint24) 109: 0xa7154d22 => cancel(address,uint32) 110: 0x47e7ef24 => deposit(address,uint256) 111: 0x7879de90 => cancelOrder(address,uint256,address,uint256,uint256) 112: 0x0e5c8d41 => addCredits(address,uint256,address,uint256,uint24) 113: 0xc81d1d5b => getPunk(uint256) 114: 0xbed2af80 => getPunk() 115: 0x3ccfd60b => withdraw() 116: 0xf6eeff1e => punkNoLongerForSale(uint256) 117: 0x8b72a2ec => transferPunk(address,uint256) 118: 0x08573a0b => reservePunksForOwner(uint256) 119: 0x62a5af3b => freeze() 120: 0xe5225381 => collect() 121: 0xd1058e59 => claimAll() 122: 0x379607f5 => claim(uint256) 123: 0xc4d66de8 => initialize(address) 124: 0x7a9e5e4b => setAuthority(address) 125: 0xe0cb3aa0 => buyWithLimit(uint256,uint256) 126: 0x40cc8854 => bite(bytes32) 127: 0x080b6132 => chop(uint128) 128: 0xbdf6e771 => cuff(uint128) 129: 0xf5893bd0 => crop(uint128) 130: 0x56371435 => cork(uint128) 131: 0xcbd5accc => cage(uint128) 132: 0x295d3a54 => join(uint128) 133: 0x67c48dd6 => free(bytes32,uint128) 134: 0x9f678cca => drip() 135: 0x69855358 => exit(uint128) 136: 0xa22664ad => draw(bytes32,uint128) 137: 0xc92aecc4 => chi() 138: 0x51f91066 => tag() 139: 0xb84d2106 => shut(bytes32) 140: 0xfcfff16f => open() 141: 0x4b11982e => setCooldown(uint64) 142: 0x07c241aa => lock(bytes32,uint128) 143: 0xbaa8529c => give(bytes32,address) 144: 0x6299c83e => wipe(bytes32,uint128) 145: 0xde3e7a9c => boom(uint128) 146: 0x90089adf => bust(uint128) 147: 0x65d1df24 => s2s() 148: 0x420f2ed9 => jump(uint128) 149: 0xc8d10f40 => warp(uint64) 150: 0xca2201c5 => coax(uint128) 151: 0x495d32cb => par() 152: 0x0302c688 => prod() 153: 0x1406b921 => vent() 154: 0x961be391 => cash() 155: 0x69245009 => cage() 156: 0x44df8e70 => burn() 157: 0x90bc1693 => burn(uint128) 158: 0x7261e469 => burn(address,uint128) 159: 0xbe29184f => mint(address,uint128) 160: 0x8402181f => pull(address,uint128) 161: 0x69d3e20e => mint(uint128) 162: 0x12e5ff77 => exit(address,uint128) 163: 0x89afcb44 => burn(address) 164: 0x6b2113cd => pull(address,address,uint128) 165: 0xceae3abd => join(address,uint128) 166: 0x52d11238 => pull(address) 167: 0x66b3bcb0 => pull(address,address) 168: 0x3c71a7c7 => push(address,address,uint128) 169: 0x89b09de7 => push(address) 170: 0x03438dd0 => swap(address) 171: 0x3452f51d => push(address,uint128) 172: 0xb716ba67 => push(address,address) 173: 0xa57d9ad3 => lend(address,uint128) 174: 0x379f5217 => mend(address,uint128) 175: 0xe0cd1d69 => heal(address) 176: 0x065a50ed => pool(address,uint128) 177: 0x114e11a0 => take(address,uint128) 178: 0xbe9a6555 => start() 179: 0x5ac801fe => setName(bytes32) 180: 0x07da68f5 => stop() 181: 0x67aff484 => setUserRole(address,uint8,bool) 182: 0xd381ba7c => setRootUser(address,bool) 183: 0xc6b0263e => setPublicCapability(address,bytes4,bool) 184: 0x7d40583d => setRoleCapability(uint8,address,bytes4,bool) 185: 0xf0217ce5 => permit(bytes32,bytes32,bytes32) 186: 0xcbeea68c => permit(address,address,bytes32) 187: 0x79d88d87 => forbid(bytes32,bytes32,bytes32) 188: 0x2bc3217d => forbid(address,address,bytes32)

以太坊实战【地址监控三】

token交易测试

token监控

结论