Add saving of contracts to json obj
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b1a575215f
commit
befcc02a54
10
bXcat.py
10
bXcat.py
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@ -38,19 +38,19 @@ def privkey(address):
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bitcoind.dumpprivkey(address)
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def hashtimelockcontract(funder, redeemer, secret, locktime):
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funder = CBitcoinAddress(funder)
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redeemer = CBitcoinAddress(redeemer)
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funderAddr = CBitcoinAddress(funder)
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redeemerAddr = CBitcoinAddress(redeemer)
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h = sha256(secret)
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blocknum = bitcoind.getblockcount()
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redeemblocknum = blocknum + locktime
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zec_redeemScript = CScript([OP_IF, OP_SHA256, h, OP_EQUALVERIFY,OP_DUP, OP_HASH160,
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redeemer, OP_ELSE, redeemblocknum, OP_CHECKLOCKTIMEVERIFY, OP_DROP, OP_DUP, OP_HASH160,
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funder, OP_ENDIF,OP_EQUALVERIFY, OP_CHECKSIG])
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redeemerAddr, OP_ELSE, redeemblocknum, OP_CHECKLOCKTIMEVERIFY, OP_DROP, OP_DUP, OP_HASH160,
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funderAddr, OP_ENDIF,OP_EQUALVERIFY, OP_CHECKSIG])
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txin_scriptPubKey = zec_redeemScript.to_p2sh_scriptPubKey()
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# Convert the P2SH scriptPubKey to a base58 Bitcoin address
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txin_p2sh_address = CBitcoinAddress.from_scriptPubKey(txin_scriptPubKey)
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p2sh = str(txin_p2sh_address)
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return p2sh
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return {'p2sh': p2sh, 'redeemblocknum': redeemblocknum, 'zec_redeemScript': b2x(zec_redeemScript), 'redeemer': redeemer, 'funder': funder}
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def fund_htlc(p2sh, amount):
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send_amount = amount*COIN
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@ -1 +1 @@
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{"buy": {"currency": "zcash", "amount": 2.45, "p2sh": "t2HGf3VPaDvacd94UZiYipwxQ1E5BuVwyFT", "initiator": "tmWnA7ypaCtpG7KhEWfr5XA1Rpm8521yMfX", "fulfiller": "tmTqTsBFkeKXyawHfZfcAZQY47xEhpEbo1E"}, "sell": {"currency": "bitcoin", "amount": 1.2, "initiator": "mpxpkAUatZR45rdrWQSjkUK7z9LyeSMoEr", "p2sh": "2N1Up8hp196ZXknnxGAUYHXdnA6eHMLg3xM", "fulfiller": "mg1EHcpWyErmGhMvpZ9ch2qzFE7ZTKuaEy", "fund_tx": "a5d3b35eb57effda9ce359e10ec10a6320d4b0e5fca2712105a65f0541f474e4"}, "id": 1}
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{"sell": {"p2sh": "2N1Up8hp196ZXknnxGAUYHXdnA6eHMLg3xM", "secret": "test", "initiator": "mpxpkAUatZR45rdrWQSjkUK7z9LyeSMoEr", "currency": "bitcoin", "status": "funded", "fulfiller": "mg1EHcpWyErmGhMvpZ9ch2qzFE7ZTKuaEy", "fund_tx": "5c21b70b22d8c33c7706233c1319689a17ed6346d6b1f7f9f44cb442fdeca014", "amount": 1.2}, "buy": {"initiator": "tmWnA7ypaCtpG7KhEWfr5XA1Rpm8521yMfX", "currency": "zcash", "amount": 2.45, "fulfiller": "tmTqTsBFkeKXyawHfZfcAZQY47xEhpEbo1E"}, "id": 1}
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23
xcat.py
23
xcat.py
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@ -26,9 +26,9 @@ def get_contract():
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contractdb = json.load(data_file)
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return contractdb
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def save_contract(contract):
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def save_contract(contracts):
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with open('contract.json', 'w') as outfile:
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json.dump(contract, outfile)
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json.dump(contracts, outfile)
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def check_p2sh(currency, address):
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@ -47,8 +47,8 @@ def set_price():
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buy = 'zcash'
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sell_amt = input("How much {0} do you want to sell?".format(sell))
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buy_amt = input("How much {0} do you want to receive in exchange?".format(buy))
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sell = {'currency': sell, 'amount': 1.2, 'status': 'empty'}
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buy = {'currency': buy, 'amount': 2.45, 'status': 'empty'}
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sell = {'currency': sell, 'amount': 1.2}
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buy = {'currency': buy, 'amount': 2.45}
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trade['sell'] = sell
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trade['buy'] = buy
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save_trade(trade)
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@ -76,9 +76,11 @@ def initiate_trade():
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locktime = 20 # Must be more than first tx
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# Returns contract obj
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contracts = []
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contracts = {}
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contract = create_htlc(currency, trade['sell']['initiator'], trade['sell']['fulfiller'], secret, locktime)
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contracts.append(contract)
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sell_p2sh = contract['p2sh']
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contracts[contract['p2sh']] = contract
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save_contract(contracts)
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print('To complete your sell, send {0} {1} to this p2sh: {2}'.format(trade['sell']['amount'], currency, contract['p2sh']))
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response = input("Type 'enter' to allow this program to send funds on your behalf.")
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@ -200,14 +202,15 @@ if __name__ == '__main__':
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trade = get_trade()
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if role == "i":
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if trade['sell']['status'] == 'empty':
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if 'status' not in trade['sell']:
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set_price()
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get_addresses()
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initiate_trade()
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print("XCATDB Trade", trade)
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elif trade['buy']['status'] == 'funded':
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# Means buyer has already funded the currency the transaction initiator wants to exchange into
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seller_redeem()
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elif 'status' in trade['sell']:
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if trade['sell']['status'] == 'funded':
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# Means buyer has already funded the currency the transaction initiator wants to exchange into
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seller_redeem()
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else:
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if trade['sell']['status'] == 'funded':
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trade = get_trade()
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10
zXcat.py
10
zXcat.py
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@ -35,21 +35,21 @@ def privkey(address):
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zcashd.dumpprivkey(address)
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def hashtimelockcontract(funder, redeemer, secret, locktime):
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funder = CBitcoinAddress(funder)
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redeemer = CBitcoinAddress(redeemer)
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funderAddr = CBitcoinAddress(funder)
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redeemerAddr = CBitcoinAddress(redeemer)
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h = sha256(secret)
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blocknum = zcashd.getblockcount()
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redeemblocknum = blocknum + locktime
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zec_redeemScript = CScript([OP_IF, OP_SHA256, h, OP_EQUALVERIFY,OP_DUP, OP_HASH160,
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redeemer, OP_ELSE, redeemblocknum, OP_CHECKLOCKTIMEVERIFY, OP_DROP, OP_DUP, OP_HASH160,
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funder, OP_ENDIF,OP_EQUALVERIFY, OP_CHECKSIG])
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redeemerAddr, OP_ELSE, redeemblocknum, OP_CHECKLOCKTIMEVERIFY, OP_DROP, OP_DUP, OP_HASH160,
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funderAddr, OP_ENDIF,OP_EQUALVERIFY, OP_CHECKSIG])
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print("TX2 Redeem script on Zcash blockchain:", b2x(zec_redeemScript))
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txin_scriptPubKey = zec_redeemScript.to_p2sh_scriptPubKey()
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# Convert the P2SH scriptPubKey to a base58 Bitcoin address
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txin_p2sh_address = CBitcoinAddress.from_scriptPubKey(txin_scriptPubKey)
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p2sh = str(txin_p2sh_address)
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# Returning all this to be saved locally in p2sh.json
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return {'p2sh': p2sh, 'redeemblocknum': redeemblocknum, 'zec_redeemScript': zec_redeemScript, 'redeemer': redeemer, 'funder': funder}
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return {'p2sh': p2sh, 'redeemblocknum': redeemblocknum, 'zec_redeemScript': b2x(zec_redeemScript), 'redeemer': redeemer, 'funder': funder}
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def fund_htlc(p2sh, amount):
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send_amount = amount*COIN
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