def __init__(
self,
keystore_file=None,
keystore_pwd=None,
private_key=None,
provider=base_config.provider,
gas_price=GAS_PRICE,
):
""" 合约方法调用类
参数有可能会变化, 所以调用时最好指定参数名
:param keystore_file: user account keystore file, which include user account private key
:param keystore_pwd: user account keystore password
:param provider: Ulord side provider, such as http://xxxx:yyy, which is a RPC endpoint
"""
self.web3 = Web3(HTTPProvider(provider))
self.gas_limit = base_config.BLOCK_GAS_LIMIT
self.gas_price = gas_price
self.last_tx = None
self.main_address = None
if private_key:
self.set_account_from_private_key(private_key)
elif keystore_file and keystore_pwd:
self.set_account_from_wallet(keystore_file, keystore_pwd)
# Rinkeby 测试网络使用的是POA权威证明, 需要使用这个插件才能正常工作
# http://web3py.readthedocs.io/en/stable/middleware.html#geth-style-proof-of-authority
if provider.startswith("https://rinkeby"):
self.web3.middleware_stack.inject(geth_poa_middleware, layer=0)
self.eth = Eth(self.web3)
# 装载所有合约
self.reloading_contract()
def transfer(to_address, from_address, value):
w3 = Web3(Web3.HTTPProvider("http://127.0.0.1:8545"))
eth = Eth(w3)
trans = eth.sendTransaction({
"to": to_address,
"from": from_address,
"value": value
})
def __init__(self, http_endpoint):
self.w3 = Web3(Web3.HTTPProvider(http_endpoint))
self.eth = Eth(self.w3)
# self.accountPK = os.environ.get('PK')
self.accountPBK = self.w3.toChecksumAddress(
"0xb7e888BEa1ABAF7e999E8f66Dd826b4d046E40A5"
) #("0x40A5673B35dbB64CeeF457ba68Eceb29bd3f96Fb")
print("Started web3 service")
def get_queryset(self):
w3 = Web3(Web3.HTTPProvider("http://127.0.0.1:8545"))
wallets = Wallet.objects.filter(user=self.request.user)
wallet = wallets[0]
eth = Eth(w3)
balance = eth.getBalance(wallet.address)
wallet.balance = balance
wallet.save()
return wallets
def __init__(self, URL):
self.URL = URL
self.w3 = connect_web3(URL)
self.eth = Eth(self.w3)
self.personal = Personal(self.w3)
for i in range(5):
if self.w3.isConnected():
break
else:
self.w3 = connect_web3(URL)
time.sleep(1)
else:
raise Exception("节点连接失败")
def index(request):
content = 'hello,world'
from web3.auto import w3
from web3.eth import Eth
from web3 import Web3
web = Web3(Web3.HTTPProvider('http://127.0.0.1:7545'))
# eth = Eth(w3)
eth = Eth(web)
content = str(dict(eth.getBlock('latest')))
print(content)
return HttpResponse(content)
class Web3Service:
def __init__(self, http_endpoint):
self.w3 = Web3(Web3.HTTPProvider(http_endpoint))
self.eth = Eth(self.w3)
# self.accountPK = os.environ.get('PK')
self.accountPBK = self.w3.toChecksumAddress(
"0xb7e888BEa1ABAF7e999E8f66Dd826b4d046E40A5"
) #("0x40A5673B35dbB64CeeF457ba68Eceb29bd3f96Fb")
print("Started web3 service")
def sign_tx(
self,
contractFunc,
options=None
): # This will generate a signed tx with the private key of the service
nonce = self.eth.getTransactionCount(self.accountPBK)
tx = contractFunc.buildTransaction({
'nonce':
nonce,
'gasPrice':
self.w3.toWei('21', 'gwei')
})
pk = os.environ.get('PK')
signedTx = self.eth.account.signTransaction(tx, private_key=pk)
return signedTx
def __init__(self,
url,
address,
pwd,
abi=r"./data/dpos/candidateConstract.json",
vote_abi=r'./data/dpos/ticketContract.json',
privatekey=conf.PRIVATE_KEY):
self.web3 = connect_web3(url)
if not self.web3.isConnected():
raise Exception("节点连接失败")
self.eth = Eth(self.web3)
self.address = address
self.abi = abi
self.vote_abi = vote_abi
self.value = 100
self.privatekey = privatekey
def __init__(self,
url,
address,
pwd,
abi=r"./data/dpos/candidateConstract.json",
vote_abi=r'./data/dpos/ticketContract.json'):
self.web3 = connect_web3(url)
if not self.web3.isConnected():
raise Exception("节点连接失败")
print("连接成功")
self.eth = Eth(self.web3)
self.address = address
if not self.web3.personal.unlockAccount(self.address, pwd, 22222):
raise Exception("账号解锁失败")
print("解锁账号成功")
self.abi = abi
self.vote_abi = vote_abi
self.value = 100
def __init__(self, provider):
self._requestManager = RequestManager(provider)
self.eth = Eth(self)
self.db = Db(self)
self.shh = Shh(self)
self.net = Net(self)
self.personal = Personal(self)
self.version = Version(self)
self.txpool = TxPool(self)
self.miner = Miner(self)
self.admin = Admin(self)
def eth_sign_with_keyfile(message: bytes, raw: bool, keyfile: str, password: str):
assert(isinstance(message, bytes))
assert(isinstance(raw, bool))
assert(isinstance(keyfile, str))
assert(isinstance(password, str))
if not raw:
message = hexstring_to_bytes(Eth._recoveryMessageHash(data=message))
key = eth_keyfile.decode_keyfile_json(eth_keyfile.load_keyfile(keyfile), bytes(password, 'utf-8'))
pk = PrivateKey(key, raw=True)
signature = pk.ecdsa_recoverable_serialize(
pk.ecdsa_sign_recoverable(message, raw=True)
)
signature = signature[0] + utils.bytearray_to_bytestr([signature[1]])
signature_hex = signature.hex()[0:128] + int_to_bytes(ord(bytes.fromhex(signature.hex()[128:130]))+27).hex()
return '0x' + signature_hex
def __init__(self, provider):
self._requestManager = RequestManager(provider)
self.currentProvider = provider
self.eth = Eth(self)
self.db = Db(self._requestManager)
self.shh = Shh(self._requestManager)
self.net = Net(self._requestManager)
self.personal = Personal(self._requestManager)
self.version = Version(self._requestManager)
self.txpool = TxPool(self._requestManager)
self.miner = Miner(self._requestManager)
self.admin = Admin(self._requestManager)
self.providers = {
'RPCProvider': RPCProvider,
'IPCProvider': IPCProvider,
'TestRPCProvider': TestRPCProvider,
}
self.RPCProvider = RPCProvider
self.IPCProvider = IPCProvider
self.TestRPCProvider = TestRPCProvider
# Encoding and Decoding
self.toHex = to_hex
self.toAscii = decode_hex
self.toUtf8 = compose(decode_hex, force_text)
self.fromAscii = encode_hex
self.fromUtf8 = encode_hex
self.toDecimal = to_decimal
self.fromDecimal = from_decimal
# Currency Utility
self.toWei = to_wei
self.fromWei = from_wei
# Address Utility
self.isAddress = is_address
self.isChecksumAddress = is_checksum_address
self.toChecksumAddress = to_checksum_address
def eth_sign(message: bytes, web3: Web3):
assert(isinstance(message, bytes))
assert(isinstance(web3, Web3))
# as `EthereumTesterProvider` does not support `eth_sign`, we implement it ourselves
if str(web3.providers[0]) == 'EthereumTesterProvider':
key = k0
msg = hexstring_to_bytes(Eth._recoveryMessageHash(data=message))
pk = PrivateKey(key, raw=True)
signature = pk.ecdsa_recoverable_serialize(
pk.ecdsa_sign_recoverable(msg, raw=True)
)
signature = signature[0] + utils.bytearray_to_bytestr([signature[1]])
signature_hex = signature.hex()[0:128] + int_to_bytes(ord(bytes.fromhex(signature.hex()[128:130]))+27).hex()
return '0x' + signature_hex
return web3.manager.request_blocking(
"eth_sign", [web3.eth.defaultAccount, encode_hex(message)],
)
class PlatonContractTransaction:
"""
合约创建参数list结构：[txType,byteCode,abi]
合约调用参数list结构：[txType,funcName,params01,params02,...]
"""
def __init__(self, URL):
# test address 'http://10.10.8.20:8545'
self.w3 = Web3(Web3.HTTPProvider(URL))
self.eth = Eth(self.w3)
self.personal = Personal(self.w3)
print("if the web3 isConnected : {}".format(self.w3.isConnected()))
def get_signed_data(self, fromAddress, toAddress, dataList, privateKey):
myNonce = self.eth.getTransactionCount(fromAddress)
data = rlp.encode(dataList)
transactionDict = {
"from": fromAddress,
"to": toAddress,
"gasPrice": "0x8250de00",
"gas": "0x1fffff", # rule of thumb / guess work
"nonce": myNonce,
"data": data,
}
signedTransactionDict = self.eth.account.signTransaction(
transactionDict, privateKey)
return signedTransactionDict.rawTransaction
def contract_deploy(self, txType, bytecode, abi, fromAddress):
"""
非签名合约部署
:param txType:取值类型 0-主币转账交易 1-合约发布 2-合约调用 3-投票 4-权限
:param bytecode:合约bin(wasm文件)，二进制数组
:param abi:abi(json文件)，二进制数组
:param fromAddress:钱包地址
:return:合约部署transactionHash
"""
txType = platon_encoder.encode_type(txType)
bytecode = bytecode
abi = abi
rlpList = [txType, bytecode, abi]
data = rlp.encode(rlpList)
transactionHash = self.eth.sendTransaction({
"from": fromAddress,
"gas": "0x1fffff",
"gasPrice": "0x8250de00",
"data": data,
})
transactionHash = HexBytes(transactionHash).hex().lower()
print(transactionHash)
return transactionHash
def contract_transaction(self, fromAddress, contractAddress, dataList):
"""
非签名合约交易
:param fromAddress: 钱包地址
:param contractAddress: 合约地址
:param dataList: 参数list
:return:合约交易transactionHash
"""
data = rlp.encode(dataList)
transactionHash = self.eth.sendTransaction({
"from": fromAddress,
"to": contractAddress,
"gas": "0x1fffff",
"gasPrice": "0x8250de00",
"data": data,
})
transactionHash = HexBytes(transactionHash).hex().lower()
print(transactionHash)
return transactionHash
def contract_call(self, fromAddress, contractAddress, dataList):
"""
合约查询交易
:param fromAddress:钱包地址
:param contractAddress:合约地址
:param dataList:参数list
:return:
"""
data = rlp.encode(dataList)
recive = self.eth.call({
"from": fromAddress,
"to": contractAddress,
"data": data
})
# recive = HexBytes(recive).decode()
print(recive)
return recive
def signed_contract_deploy(self, txType, bytecode, abi, fromAddress,
privateKey):
"""
签名部署合约
:param txType:取值类型 0-主币转账交易 1-合约发布 2-合约调用 3-投票 4-权限
:param bytecode:bytecode，二进制数组
:param abi:abi，二进制数组
:param fromAddress:钱包地址
:param privateKey:钱包私钥
:return:transactionHash
"""
txType = platon_encoder.encode_type(txType)
bytecode = bytecode
abi = abi
rlpList = [txType, bytecode, abi]
signedData = self.get_signed_data(rlpList, fromAddress, "", privateKey)
transactionHash = self.eth.sendRawTransaction(signedData)
transactionHash = HexBytes(transactionHash).hex().lower()
print(transactionHash)
return transactionHash
def signed_contract_transaction(self, fromAddress, contractAddress,
dataList, privateKey):
"""
签名合约交易
:param fromAddress:钱包地址
:param contractAddress:合约地址
:param dataList:参数list
:param privateKey:钱包私钥
:return:transactionHash
"""
signedData = self.get_signed_data(fromAddress, contractAddress,
dataList, privateKey)
transactionHash = self.eth.sendRawTransaction(signedData)
transactionHash = HexBytes(transactionHash).hex().lower()
print(transactionHash)
return transactionHash
class PlatonDpos:
def __init__(self,
url,
address,
pwd,
abi=r"./data/dpos/candidateConstract.json",
vote_abi=r'./data/dpos/ticketContract.json',
privatekey=conf.PRIVATE_KEY):
self.web3 = connect_web3(url)
if not self.web3.isConnected():
raise Exception("节点连接失败")
self.eth = Eth(self.web3)
self.address = address
self.abi = abi
self.vote_abi = vote_abi
self.value = 100
self.privatekey = privatekey
def get_result(self, tx_hash, func_name, abi=None):
result = self.eth.waitForTransactionReceipt(tx_hash)
"""查看eventData"""
topics = result['logs'][0]['topics']
data = result['logs'][0]['data']
if abi is None:
event = Event(json.load(open(self.abi)))
else:
event = Event(json.load(open(abi)))
event_data = event.event_data(topics, data)
return event_data, func_name
def send_raw_transaction(self, data, from_address, to_address, value):
nonce = self.eth.getTransactionCount(from_address)
if value > 0:
transaction_dict = {
"to": to_address,
"gasPrice": "0x8250de00",
"gas": "0x6fffffff",
"nonce": nonce,
"data": data,
"value": self.web3.toWei(value, "ether"),
}
else:
transaction_dict = {
"to": to_address,
"gasPrice": "0x8250de00",
"gas": "0x6fffffff",
"nonce": nonce,
"data": data,
}
signedTransactionDict = self.eth.account.signTransaction(
transaction_dict, self.privatekey)
data = signedTransactionDict.rawTransaction
result = HexBytes(self.eth.sendRawTransaction(data)).hex()
return result
def CandidateDeposit(self,
nodeid,
owner,
fee,
host,
port,
extra,
value=None):
'''
@Description: 节点候选人申请/增加质押，质押金额为交易的value值。
@param
nodeId: [64]byte 节点ID(公钥)
owner: [20]byte 质押金退款地址
fee: uint32 出块奖励佣金比，以10000为基数(eg：5%，则fee=500)
host: string 节点IP
port: string 节点P2P端口号
Extra: string 附加数据(有长度限制，限制值待定)
@return:
出参（事件：CandidateDepositEvent）：
Ret: bool 操作结果
ErrMsg: string 错误信息
'''
data = rlp.encode([
int(1001).to_bytes(8, 'big'), self.CandidateDeposit.__name__,
nodeid, owner, fee, host,
str(port), extra
])
if not value:
value = self.value
to = "0x1000000000000000000000000000000000000001"
result = self.send_raw_transaction(data, self.address, to, value)
# print('!!!!!', result)
return self.get_result(result, self.CandidateDeposit.__name__)
def CandidateApplyWithdraw(self, nodeid, withdraw):
'''
@Description: 节点质押金退回申请，申请成功后节点将被重新排序，权限校验from==owner
@param
nodeId: [64]byte 节点ID(公钥)
withdraw: uint256 退款金额 (单位：ADP)
@return:
出参（事件：CandidateApplyWithdrawEvent）：
Ret: bool 操作结果
ErrMsg: string 错误信息
'''
# withdraw = np.uint256(withdraw)
data = rlp.encode([
int(1002).to_bytes(8, 'big'), self.CandidateApplyWithdraw.__name__,
nodeid,
self.web3.toWei(withdraw, 'ether')
])
to = "0x1000000000000000000000000000000000000001"
result = self.send_raw_transaction(data, self.address, to, value=0)
# print('申请退回hx：', result)
return self.get_result(result, self.CandidateApplyWithdraw.__name__)
def GetCandidateWithdrawInfos(self, nodeid):
'''
@Description: 获取节点申请的退款记录列表
@param {type}
nodeId: [64]byte 节点ID(公钥)
@return:
Ret: bool 操作结果
ErrMsg: string 错误信息
[]:列表
'Balance': uint256 退款金额 (单位：ADP)
LockNumber: uint256 退款申请所在块高
LockBlockCycle: uint256 退款金额锁定周期
'''
data = rlp.encode([
int(10).to_bytes(8, 'big'),
self.GetCandidateWithdrawInfos.__name__, nodeid
])
recive = self.eth.call({
"from": self.address,
"to": "0x1000000000000000000000000000000000000001",
"data": data
})
recive = str(recive, encoding="ISO-8859-1")
p = re.compile(r'{.*}')
recive = re.findall(p, recive)[0]
recive = json.loads(recive)
return recive
def CandidateWithdraw(self, nodeid):
'''
@Description: 节点质押金提取，调用成功后会提取所有已申请退回的质押金到owner账户。
@param:
nodeId: [64]byte 节点ID(公钥)
@return:
出参（事件：CandidateWithdrawEvent）：
Ret: bool 操作结果
ErrMsg: string 错误信息
'''
data = HexBytes(
rlp.encode([
int(1003).to_bytes(8, 'big'), self.CandidateWithdraw.__name__,
nodeid
])).hex()
to = "0x1000000000000000000000000000000000000001"
result = self.send_raw_transaction(data, self.address, to, value=0)
# print('退回hx：', result)
return self.get_result(result, self.CandidateWithdraw.__name__)
def SetCandidateExtra(self):
'''
@Description: 设置节点附加信息，供前端扩展使用
@param:
nodeId: [64]byte 节点ID(公钥)
extra: string 附加信息
@return:
出参（事件：SetCandidateExtraEvent）：
Ret: bool 操作结果
ErrMsg: string 错误信息
'''
pass
def GetCandidateDetails(self, nodeid):
'''
@Description: 获取候选人信息。
@param {type} nodeId: [64]byte 节点ID(公钥)
@return:
Deposit: uint256 质押金额 (单位：ADP)
BlockNumber: uint256 质押金更新的最新块高
Owner: [20]byte 质押金退款地址
TxIndex: uint32 所在区块交易索引
CandidateId: [64]byte 节点Id(公钥)
From: [20]byte 最新质押交易的发送方
Fee: uint64 出块奖励佣金比，以10000为基数(eg：5%，则fee=500)
Host: string 节点IP
Port: string 节点P2P端口号
Extra: string 附加数据(有长度限制，限制值待定)
'''
data = rlp.encode([
int(10).to_bytes(8, 'big'), self.GetCandidateDetails.__name__,
nodeid
])
recive = self.eth.call({
"from": self.address,
"to": "0x1000000000000000000000000000000000000001",
"data": data
})
recive = str(recive, encoding="ISO-8859-1")
p = re.compile(r'{.*}')
recive = re.findall(p, recive)[0]
recive = re.sub("{{", "{", recive)
recive = json.loads(recive)
return recive
def GetCandidateList(self):
'''
@Description: 获取所有入围节点的信息列表
@param {type} @@@@
@return:
Ret: bool 操作结果
ErrMsg: string 错误信息
[]:列表
Deposit: uint256 质押金额 (单位：ADP)
BlockNumber: uint256 质押金更新的最新块高
Owner: [20]byte 质押金退款地址
TxIndex: uint32 所在区块交易索引
CandidateId: [64]byte 节点Id(公钥)
From: [20]byte 最新质押交易的发送方
Fee: uint64 出块奖励佣金比，以10000为基数(eg：5%，则fee=500)
Host: string 节点IP
Port: string 节点P2P端口号
Extra: string 附加数据(有长度限制，限制值待定)
'''
data = rlp.encode(
[int(10).to_bytes(8, 'big'), self.GetCandidateList.__name__])
recive = self.eth.call({
"from": self.address,
"to": "0x1000000000000000000000000000000000000001",
"data": data
})
recive = str(recive, encoding="ISO-8859-1")
recive = re.sub("{\[", "[", recive)
p = re.compile(r'{.*?}')
recive = re.findall(p, recive)
try:
recive = [json.loads(i) for i in recive]
except Exception as e:
raise e
return recive
def GetVerifiersList(self):
'''
@Description: 获取参与当前共识的验证人列表
@param {type} @@@@
@return:
Ret: bool 操作结果
ErrMsg: string 错误信息
[]:列表
Deposit: uint256 质押金额 (单位：ADP)
BlockNumber: uint256 质押金更新的最新块高
Owner: [20]byte 质押金退款地址
TxIndex: uint32 所在区块交易索引
CandidateId: [64]byte 节点Id(公钥)
From: [20]byte 最新质押交易的发送方
Fee: uint64 出块奖励佣金比，以10000为基数(eg：5%，则fee=500)
Host: string 节点IP
Port: string 节点P2P端口号
Extra: string 附加数据(有长度限制，限制值待定)
'''
data = rlp.encode(
[int(10).to_bytes(8, 'big'), self.GetVerifiersList.__name__])
recive = self.eth.call({
"from": self.address,
"to": "0x1000000000000000000000000000000000000001",
"data": data
})
recive = str(recive, encoding="ISO-8859-1")
p = re.compile(r'{.*?}')
recive = re.findall(p, recive)
recive = [json.loads(i) for i in recive]
return recive
def VoteTicket(self, count, price, nodeid, voter, value=None):
'''
购买选票，投票给候选人
:param count: uint64 购票数量
:param price:*big.Int 选票单价
:param nodeid:[64]byte 候选人节点Id
:param value: 发送交易的value为 购票数量 * 选票单价
:return:
出参（事件：VoteTicketEvent）：
Ret: bool 操作结果
Data: string 返回数据(成功选票的数量）
ErrMsg: string 错误信息
'''
data = rlp.encode([
int(1000).to_bytes(8, 'big'), self.VoteTicket.__name__,
int(count).to_bytes(4, 'big'),
int(self.web3.toWei(price, 'ether')).to_bytes(8, 'big'), nodeid
])
if not value:
value = self.value
to = "0x1000000000000000000000000000000000000002"
result_hex = self.send_raw_transaction(data, voter, to, value)
result, _ = self.get_result(result_hex,
self.VoteTicket.__name__,
abi=self.vote_abi)
return result, result_hex
def GetTicketPrice(self):
'''
获取当前的票价
:return:
ret: *big.Int 当前票价
error: string 错误信息
'''
data = rlp.encode(
[int(10).to_bytes(8, 'big'), self.GetTicketPrice.__name__])
recive = self.eth.call({
"from": self.address,
"to": "0x1000000000000000000000000000000000000002",
"data": data
})
recive = HexBytes(recive).decode('utf-8')
partern = re.compile(r'\d')
recive = ''.join(re.findall(partern, recive))
return int(recive)
def GetCandidateTicketIds(self, nodeid):
'''
获取指定候选人的选票Id的列表
:param nodeid: [64]byte 节点Id
:return:
ret: []ticketId 选票的Id列表
error: string 错误信息
'''
data = HexBytes(
rlp.encode([
int(10).to_bytes(8, 'big'),
self.GetCandidateTicketIds.__name__, nodeid
])).hex()
recive = self.eth.call({
"from": self.address,
"to": "0x1000000000000000000000000000000000000002",
"data": data
})
recive = str(recive, encoding="ISO-8859-1")
p = re.compile('\"(.+?)\"')
recive = re.findall(p, recive)
return recive
def GetBatchCandidateTicketIds(self, node_ids):
'''
批量获取指定候选人的选票Id的列表
:param node_ids: []nodeId 节点Id列表
:return:
ret: []ticketIds 多个节点的选票的Id列表
error: string 错误信息
'''
encode_list = [
int(10).to_bytes(8, 'big'),
self.GetBatchCandidateTicketIds.__name__, ':'.join(node_ids)
]
data = rlp.encode(encode_list)
recive = self.eth.call({
"from": self.address,
"to": "0x1000000000000000000000000000000000000002",
"data": data
})
recive = str(recive, encoding="ISO-8859-1")
p = re.compile(r"{.*?}")
recive = re.findall(p, recive)
recive = [json.loads(i) for i in recive]
return recive
def GetTicketDetail(self, ticket_id):
'''
获取票详情
:param ticket_id:[32]byte 票Id
:return:
ret: Ticket 选票信息
error: string 错误信息
'''
data = rlp.encode([
int(10).to_bytes(8, 'big'), self.GetTicketDetail.__name__,
ticket_id
])
recive = self.eth.call({
"from": self.address,
"to": "0x1000000000000000000000000000000000000002",
"data": data
})
recive = str(recive, encoding="ISO-8859-1")
p = re.compile(r"{.*?}")
recive = re.findall(p, recive)
recive = [json.loads(i) for i in recive]
return recive
def GetBatchTicketDetail(self, ticket_ids):
'''
批量获取票详情
:param ticket_ids:[]ticketId 票Id列表
:return:
ret: []Ticket 选票信息列表
error: string 错误信息
'''
data = rlp.encode([
int(10).to_bytes(8, 'big'), self.GetBatchTicketDetail.__name__,
':'.join(ticket_ids)
])
recive = self.eth.call({
"from": self.address,
"to": "0x1000000000000000000000000000000000000002",
"data": data
})
recive = str(recive, encoding="ISO-8859-1")
p = re.compile(r"{.*?}")
recive = re.findall(p, recive)
recive = [json.loads(i) for i in recive]
return recive
def GetCandidateEpoch(self, nodeid):
'''
获取指定候选人的票龄
:param nodeid:[64]byte 节点Id
:return:
ret: uint64 票龄
error: string 错误信息
'''
data = rlp.encode([
int(10).to_bytes(8, 'big'), self.GetCandidateEpoch.__name__, nodeid
])
recive = self.eth.call({
"from": self.address,
"to": "0x1000000000000000000000000000000000000002",
"data": data
})
recive = str(recive, encoding="ISO-8859-1")
partern = re.compile(r'\d')
recive = ''.join(re.findall(partern, recive))
return int(recive)
def GetTicketCountByTxHash(self, txHashs):
'''
(批量)获取交易的有效选票数量
:param txHashs: string 多个txHashs通过":"拼接的字符串
:return:
ret: dict(nodeId)uint32 多个节点的有效选票数量
error: string 错误信息
'''
data = rlp.encode([
int(10).to_bytes(8, 'big'), self.GetTicketCountByTxHash.__name__,
txHashs
])
recive = self.eth.call({
"from": self.address,
"to": "0x1000000000000000000000000000000000000002",
"data": data
})
recive = str(recive, encoding="ISO-8859-1")
partern = re.compile(r'{.+?}')
recive = re.findall(partern, recive)[0]
recive = eval(recive)
return recive
def GetCandidateTicketCount(self, nodeIds):
'''
(批量)获取指定候选人的有效选票数量
:param nodeIds: string 多个nodeId通过":"拼接的字符串
:return:
ret: dict(txHash)uint32 多个交易的有效选票数量
error: string 错误信息
'''
data = rlp.encode([
int(10).to_bytes(8, 'big'), self.GetCandidateTicketCount.__name__,
nodeIds
])
recive = self.eth.call({
"from": self.address,
"to": "0x1000000000000000000000000000000000000002",
"data": data
})
recive = str(recive, encoding="ISO-8859-1")
partern = re.compile(r'{.+?}')
recive = re.findall(partern, recive)[0]
recive = eval(recive)
return recive
def GetPoolRemainder(self):
'''
获取票池剩余票数量
:return:
ret: uint64 剩余票数量
error: string 错误信息
'''
data = rlp.encode(
[int(10).to_bytes(8, 'big'), self.GetPoolRemainder.__name__])
recive = self.eth.call({
"from": self.address,
"to": "0x1000000000000000000000000000000000000002",
"data": data
})
recive = str(recive, encoding="ISO-8859-1")
partern = re.compile(r'\d')
recive = ''.join(re.findall(partern, recive))
return int(recive)
from web3 import Web3, HTTPProvider
from web3.eth import Eth
from pprint import pprint
w3 = Web3(HTTPProvider('http://localhost:8545'))
eth = Eth(w3)
pprint(eth.accounts)
print('gas price => {0}'.format(eth.gasPrice))
class PlatonContractTransaction:
"""
合约创建参数list结构：[txType,byteCode,abi]
合约调用参数list结构：[txType,funcName,params01,params02,...]
"""
def __init__(self, URL):
self.URL = URL
self.w3 = connect_web3(URL)
self.eth = Eth(self.w3)
self.personal = Personal(self.w3)
for i in range(5):
if self.w3.isConnected():
break
else:
self.w3 = connect_web3(URL)
time.sleep(1)
else:
raise Exception("节点连接失败")
def reconnect(self):
self.w3 = connect_web3(self.URL)
self.eth = Eth(self.w3)
self.personal = Personal(self.w3)
def get_signed_data(self, fromAddress, toAddress, dataList, privateKey):
myNonce = self.eth.getTransactionCount(fromAddress)
data = rlp.encode(dataList)
transactionDict = {
"from": fromAddress,
"to": toAddress,
"gasPrice": "0x8250de00",
"gas": "0x6fffffff", # rule of thumb / guess work
"nonce": myNonce,
"data": data,
}
signedTransactionDict = self.eth.account.signTransaction(
transactionDict, privateKey)
return signedTransactionDict.rawTransaction
def contract_deploy(self, bytecode, abi, fromAddress):
"""
非签名合约部署
:param txType:取值类型 0-主币转账交易 1-合约发布 2-合约调用 3-投票 4-权限
:param bytecode:合约bin(wasm文件)，二进制数组
:param abi:abi(json文件)，二进制数组
:param fromAddress:钱包地址
:return:合约部署transactionHash
"""
txType = encoder.encode_type(1)
bytecode = bytecode
abi = abi
rlpList = [txType, bytecode, abi]
data = rlp.encode(rlpList)
transactionHash = self.eth.sendTransaction({
"from": fromAddress,
"gas": "0x6fffffff",
"gasPrice": "0x8250de00",
"data": data,
})
transactionHash = HexBytes(transactionHash).hex().lower()
return transactionHash
def contract_transaction(self, fromAddress, contractAddress, dataList):
"""
非签名合约交易
:param fromAddress: 钱包地址
:param contractAddress: 合约地址
:param dataList: 参数list
:return:合约交易transactionHash
"""
data = rlp.encode(dataList)
transactionHash = self.eth.sendTransaction({
"from": fromAddress,
"to": contractAddress,
"gas": "0x6fffffff",
"gasPrice": "0x8250de00",
"data": data,
})
transactionHash = HexBytes(transactionHash).hex().lower()
return transactionHash
def contract_call(self, fromAddress, contractAddress, dataList):
"""
合约查询交易
:param fromAddress:钱包地址
:param contractAddress:合约地址
:param dataList:参数list
:return:
"""
data = rlp.encode(dataList)
recive = self.eth.call({
"from": fromAddress,
"to": contractAddress,
"data": data
})
return recive
def signed_contract_deploy(self, bytecode, abi, fromAddress, privateKey):
"""
签名部署合约
:param txType:取值类型 0-主币转账交易 1-合约发布 2-合约调用 3-投票 4-权限
:param bytecode:bytecode，二进制数组
:param abi:abi，二进制数组
:param fromAddress:钱包地址
:param privateKey:钱包私钥
:return:transactionHash
"""
txType = encoder.encode_type(1)
bytecode = bytecode
abi = abi
rlpList = [txType, bytecode, abi]
signedData = self.get_signed_data(fromAddress, "", rlpList, privateKey)
transactionHash = self.eth.sendRawTransaction(signedData)
transactionHash = HexBytes(transactionHash).hex().lower()
return transactionHash
def signed_contract_transaction(self, fromAddress, contractAddress,
dataList, privateKey):
"""
签名合约交易
:param fromAddress:钱包地址
:param contractAddress:合约地址
:param dataList:参数list
:param privateKey:钱包私钥
:return:transactionHash
"""
signedData = self.get_signed_data(fromAddress, contractAddress,
dataList, privateKey)
transactionHash = self.eth.sendRawTransaction(signedData)
transactionHash = HexBytes(transactionHash).hex().lower()
return transactionHash
def contract_call_string(self, fromAddress, contractAddress, dataList):
result = self.contract_call(fromAddress, contractAddress, dataList)
length = int(result[66:130], 16) * 2
data = result[130:130 + length]
ret = HexBytes(data).decode()
return ret.lower()
def reconnect(self):
self.w3 = connect_web3(self.URL)
self.eth = Eth(self.w3)
self.personal = Personal(self.w3)
def balance(self):
return Eth.get_balance(self.address)
class ContentContract(object):
"""Content contract"""
def __init__(
self,
keystore_file=None,
keystore_pwd=None,
private_key=None,
provider=base_config.provider,
gas_price=GAS_PRICE,
):
""" 合约方法调用类
参数有可能会变化, 所以调用时最好指定参数名
:param keystore_file: user account keystore file, which include user account private key
:param keystore_pwd: user account keystore password
:param provider: Ulord side provider, such as http://xxxx:yyy, which is a RPC endpoint
"""
self.web3 = Web3(HTTPProvider(provider))
self.gas_limit = base_config.BLOCK_GAS_LIMIT
self.gas_price = gas_price
self.last_tx = None
self.main_address = None
if private_key:
self.set_account_from_private_key(private_key)
elif keystore_file and keystore_pwd:
self.set_account_from_wallet(keystore_file, keystore_pwd)
# Rinkeby 测试网络使用的是POA权威证明, 需要使用这个插件才能正常工作
# http://web3py.readthedocs.io/en/stable/middleware.html#geth-style-proof-of-authority
if provider.startswith("https://rinkeby"):
self.web3.middleware_stack.inject(geth_poa_middleware, layer=0)
self.eth = Eth(self.web3)
# 装载所有合约
self.reloading_contract()
@staticmethod
def _load_wallet(wallet_file):
if not os.path.isfile(wallet_file):
wallet_file = os.path.join(base_config.CURR_DIR, 'resources',
'keystore', wallet_file)
if not os.path.isfile(wallet_file):
raise ValueError("Wallet file not a valid path.")
with open(wallet_file) as wf:
wallet = json.load(wf)
return wallet
@staticmethod
def _save_wallet(wallet, file_name):
wf = os.path.join(base_config.CURR_DIR, 'resources', 'keystore',
"{}.json".format(file_name))
print("Wallet file address:\n{}".format(wf))
with open(wf, "w") as f:
json.dump(wallet, f)
@staticmethod
def valid_address(address):
"""验证是否是一个以太坊地址, 用EIP55校验和返回给定的地址。"""
if not Web3.isAddress(address):
return None
address = Web3.toChecksumAddress(address)
return address
def _load_abi(self):
abi_path = os.path.join(base_config.CURR_DIR, 'abi')
file_list = os.listdir(abi_path)
self.abi_files = {}
for i in file_list:
if not i.endswith(".abi"):
continue
with open(os.path.join(abi_path, i)) as cp:
cp_abi = cp.read()
self.abi_files[i[:-4]] = json.loads(cp_abi)
def _nonce(self, value=0, address=None):
if address is None:
address = self.account.address
nonce = self.eth.getTransactionCount(address) + value
return nonce
def _build_transaction(self,
func,
gas_limit=None,
gas_price=None,
nonce=None):
"""将合约方法的调用构建为离线交易对象"""
return func.buildTransaction({
"nonce":
nonce if nonce else self._nonce(),
"gas":
gas_limit if gas_limit else self.gas_limit,
"gasPrice":
gas_price if gas_price else self.gas_price,
})
def _sign_and_send_rawtransaction(self, transaction):
signed = self.account.signTransaction(transaction)
tx_hash = Web3.toHex(self.eth.sendRawTransaction(
signed.rawTransaction))
return tx_hash
def create(self, wallet_password):
"""创建一个账户, 保存key file到对应目录的json文件中, 且返回私钥和地址"""
setattr(self, "account", Account.create())
wallet = self.account.encrypt(wallet_password)
self._save_wallet(wallet, self.account.address)
return dict(
privateKey=Web3.toHex(self.account.privateKey),
address=self.account.address,
)
def set_account_from_private_key(self, private_key, wallet_password=None):
"""如果有钱包密码, 则创建对应的keystore文件. 反之 ,则不新建"""
setattr(self, "account", Account.privateKeyToAccount(private_key))
if wallet_password:
wallet = self.account.encrypt(wallet_password)
self._save_wallet(wallet, self.account.address)
self.main_address = self.web3.eth.account.privateKeyToAccount(
private_key).address
# self.web3.eth.defaultAccount = self.web3.eth.accounts[0]
return dict(
privateKey=Web3.toHex(self.account.privateKey),
address=self.account.address,
)
def set_account_from_wallet(self, wallet_file, wallet_password):
"""从密钥文件加载 account 对象"""
wallet = self._load_wallet(wallet_file)
private_key = Account.decrypt(wallet, wallet_password)
setattr(self, "account", Account.privateKeyToAccount(private_key))
self.main_address = self.web3.eth.account.privateKeyToAccount(
private_key).address
# print(self.web3.eth.defaultAccount, self.web3.eth.accounts,self.web3.eth.account)
self.web3.eth.defaultAccount = self.web3.eth.account
return dict(privateKey=Web3.toHex(private_key),
address=self.account.address)
def get_for_receipt(self, tx_hash):
""" 获取交易回执
:param tx_hash: 获取交易回执(只有已打包的交易才有数据,否则返回None)
:return:
"""
return self.web3.eth.getTransactionReceipt(tx_hash)
def get_gas_balance(self, address):
""" 获取侧链余额
"""
if address is None:
address = self.main_address
address = self.valid_address(address)
balance = self.web3.eth.getBalance(address, 'latest')
return self.web3.fromWei(balance, 'ether')
@check_account
def transfer_gas(self, to_address, value):
""" gas就是侧链的币,
:param to_address: 接收地址
:param value: 转账金额(wei)
:return: 交易hash
"""
print("nonce:", self._nonce())
to_address = self.valid_address(to_address)
payload = {
"to": to_address,
"value": value,
"gas": self.gas_limit,
"gasPrice": self.gas_price,
"nonce": self._nonce(),
}
res = self._sign_and_send_rawtransaction(payload)
self.last_tx = res
return res
def transfer_tokens(self, addresses, qualitys):
""" 多地址结算
:param addresses: List, 结算的地址列表
:param qualitys: List, 结算地址列表对应的金额
"""
for i, address in enumerate(addresses):
addresses[i] = self.valid_address(address)
for i, quality in enumerate(qualitys):
qualitys[i] = int(quality)
publish_tx = self.contract["MulTransfer"].functions.mulPayDiff(
addresses, qualitys).buildTransaction({
"nonce": self._nonce(),
"gas": self.gas_limit,
"gasPrice": self.gas_price
})
res = self._sign_and_send_rawtransaction(publish_tx)
self.last_tx = res
return res
# zza write
def reloading_contract(self):
try:
# 所有合约的abi
self._load_abi()
# 所有合约
self._load_contract()
except FileNotFoundError:
print(
"Please use the deploy_contract command to deploy the contract first, or manually prepare the "
"contract address。")
def _load_contract(self):
# 读取合约地址
with open(os.path.join(base_config.CURR_DIR,
"contractAddresses.json")) as wf:
contract_addr_list = json.load(wf)
self.contract = {}
# 装载合约
for contract, addr in contract_addr_list.items():
try:
self.contract[contract] = self.web3.eth.contract(
address=self.valid_address(addr),
abi=self.abi_files[contract])
except:
continue
view_funcs = []
abi = {}
for func in self.abi_files[contract]:
if func['type'] == 'function':
if func.get('constant') and func.get(
"stateMutability") == 'view':
view_funcs.append(func["name"])
abi[func['name']] = func
self.contract[contract].view_funcs = view_funcs
self.contract[contract].abi = abi
@check_account
def func_call(self, contract_name, function, param):
# 找到合约中对应的函数
contract = self.contract[contract_name]
try:
func = contract.functions.__getattribute__(function)
except AttributeError:
return "{} there is no {} function".format(contract_name, function)
# 准备参数
inputs = contract.abi[function]['inputs']
param = self.format_param(param, inputs)
# 增加参数
func = func() if len(param) == 0 else func(*param)
# 静态函数
if function in self.contract[contract_name].view_funcs:
addr = self.valid_address(base_config.main_address)
return func.call({"from": addr})
# 需要上链的函数
if self.last_tx is None or self.get_for_receipt(
self.last_tx) is not None:
tx = self._build_transaction(func)
res = self._sign_and_send_rawtransaction(transaction=tx)
self.last_tx = res
print("Call successful , transaction hash:")
return res
else:
print(
"The last transaction was not confirmed , please call get_for_receipt to view the last transaction"
)
return self.last_tx
def format_param(self, param, inputs):
if isinstance(param, list):
res = param
else:
res = list(param)
if len(param) != len(inputs):
return "Less parameters"
for i in range(len(inputs)):
_type = inputs[i].get('type')
# if _type.endswith("[]"):
# return "Array arguments are not recommended for command-line input, use http://remix.ethereum.org/ " \
# "manually "
if _type in ['uint256', 'uint8']:
res[i] = int(param[i])
elif 'bool' == _type:
res[i] = bool(param[i])
elif 'address' == _type:
res[i] = self.valid_address(param[i])
elif 'bytes16' == _type:
# res[i] = self.web3.toHex(hexstr=param[i])
res[i] = param[i]
else:
continue
return res
def get_last_call_info(self):
if self.last_tx is None:
return None
return self.get_for_receipt(self.last_tx)
def __init__(self, URL):
# test address 'http://10.10.8.20:8545'
self.w3 = Web3(Web3.HTTPProvider(URL))
self.eth = Eth(self.w3)
self.personal = Personal(self.w3)
print("if the web3 isConnected : {}".format(self.w3.isConnected()))
from web3.middleware import geth_poa_middleware
from web3 import Web3, HTTPProvider
from web3.eth import Eth
CHAIN_ID = 4 # Rinkeby ID
GAS = 500000
GAS_PRICE = 20 # 20 gwei
VALUE = 0
POA_NETWORK = "rinkeby"
INFURA_URL = 'https://rinkeby.infura.io'
infura_provider = HTTPProvider(INFURA_URL)
web3 = Web3(infura_provider)
eth = Eth(web3)
# If the network is POA(Proof of authority) we need this middleware injected
if INFURA_URL.find(POA_NETWORK):
web3.middleware_stack.inject(geth_poa_middleware, layer=0)
def __call__(self, eth: Eth):
return eth.contract(address=self._deployed_address, **self._kwargs)