153 lines
5.4 KiB
Python
153 lines
5.4 KiB
Python
import argparse, textwrap
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from xcat.utils import *
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import xcat.db as db
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import xcat.bitcoinRPC
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import xcat.zcashRPC
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import xcat.userInput as userInput
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from xcat.trades import *
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from xcat.protocol import *
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import ast
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def save_state(trade, tradeid):
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save(trade)
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db.create(trade, tradeid)
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def checkSellStatus(trade):
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if trade.buy.get_status() == 'funded':
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secret = get_secret()
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print("SECRET found in checksellactions", secret)
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trade = seller_redeem_p2sh(trade, secret)
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print("TRADE SUCCESSFULLY REDEEMED", trade)
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save_state(trade)
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elif trade.buy.get_status() == 'empty':
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print("Buyer has not yet funded the contract where you offered to buy {0}, please wait for them to complete their part.".format(trade.buy.currency))
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elif trade.buy.get_status() == 'redeemed':
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print("You have already redeemed the p2sh on the second chain of this trade.")
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# TODO: function to calculate appropriate locktimes between chains
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def checkBuyStatus(trade):
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if trade.sell.get_status() == 'funded' and trade.buy.get_status() != 'redeemed':
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print("One active trade available, fulfilling buyer contract...")
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# they should calculate redeemScript for themselves
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print("Trade commitment", trade.commitment)
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# TODO: which block to start computation from?
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htlc = create_htlc(trade.buy.currency, trade.buy.fulfiller, trade.buy.initiator, trade.commitment, trade.buy.locktime)
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buyer_p2sh = htlc['p2sh']
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print("Buyer p2sh:", buyer_p2sh)
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# If the two p2sh match...
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if buyer_p2sh == trade.buy.p2sh:
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fund_tx = fund_contract(trade.buy)
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trade.buy.fund_tx = fund_tx
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print("trade buy with redeemscript?", trade.buy.__dict__)
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save_state(trade)
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else:
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print("Compiled p2sh for htlc does not match what seller sent.")
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elif trade.buy.get_status() == 'redeemed':
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# TODO: secret parsing
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# secret = parse_secret(trade.buy.currency, trade.buy.redeem_tx)
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secret = get_secret()
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print("Found secret", secret)
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txid = auto_redeem_p2sh(trade.sell, secret)
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print("TXID after buyer redeem", txid)
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print("XCAT trade complete!")
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# Import a trade in hex, and save to db
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def importtrade(hexstr):
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trade = x2s(hexstr)
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trade = instantiateTrade(ast.literal_eval(trade))
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save_state(trade)
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# Export a trade by its tradeid
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def exporttrade(tradeid):
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# trade = get_trade()
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trade = db.get(tradeid)
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hexstr = s2x(str(trade))
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print(trade)
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print(hexstr)
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def findtrade(key):
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trade = db.get(key)
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print(x2s(b2x(trade)))
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def newtrade(tradeid):
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erase_trade()
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role = 'seller'
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print("Creating new XCAT trade...")
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trade = seller_init(Trade())
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# Save it to leveldb
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# db.create(trade)
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save_state(trade, tradeid)
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def instantiateTrade(trade):
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return Trade(buy=Contract(trade['buy']), sell=Contract(trade['sell']))
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def main():
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parser = argparse.ArgumentParser(formatter_class=argparse.RawTextHelpFormatter,
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description=textwrap.dedent('''\
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== Trades ==
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newtrade - create a new trade
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checktrades - check for actions to be taken on existing trades
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importtrade "hexstr" - import an existing trade from a hex string
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exporttrade - export the data of an existing trade as a hex string. Takes the tradeid as an argument
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findtrade - find a trade by the txid of the currency being traded out of
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'''))
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parser.add_argument("command", action="store", help="list commands")
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parser.add_argument("argument", action="store", nargs="*", help="add an argument")
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# parser.add_argument("--daemon", "-d", action="store_true", help="Run as daemon process")
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# TODO: function to view available trades
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# TODO: function to tell if tradeid already exists for newtrade
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args = parser.parse_args()
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# how to hold state of role
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command = args.command
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if command == 'importtrade':
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hexstr = args.argument[0]
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importtrade(hexstr)
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elif command == 'exporttrade':
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tradeid = args.argument[0]
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exporttrade(tradeid)
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elif command == "findtrade":
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print("Finding trade")
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key = args.argument[0]
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find_trade(key)
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elif command == 'checktrades':
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trade = get_trade()
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trade = instantiateTrade(trade)
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if find_role(trade.sell) == 'initiator':
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role = 'seller'
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checkSellStatus(trade)
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else:
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role = 'buyer'
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checkBuyStatus(trade)
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elif command == 'newtrade':
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print("in new trade")
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try:
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tradeid = args.argument[0]
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newtrade(tradeid)
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except:
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tradeid = userInput.enter_trade_id()
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newtrade(tradeid)
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elif command == "daemon":
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#TODO: implement
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print("Run as daemon process")
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# Ad hoc testing starts here
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elif command == "step1":
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erase_trade()
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print("Creating new XCAT trade...")
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trade = seller_init(Trade())
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# Save it to leveldb
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save_state(trade)
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elif command == "step2":
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# trade = get_trade()
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tradeid = args.argument[0]
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trade = db.get(tradeid)
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print(trade)
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checkBuyStatus(trade)
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elif command == "step3":
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trade = get_trade()
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checkSellStatus(trade)
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elif command == "step4":
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trade = get_trade()
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checkBuyStatus(trade)
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