222 lines
8.8 KiB
Python
222 lines
8.8 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.userInput as userInput
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from xcat.trades import *
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from xcat.protocol import *
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import subprocess
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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(tradeid):
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trade = db.get(tradeid)
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status = seller_check_status(trade)
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print("Trade status: {0}\n".format(status))
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if status == 'init':
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userInput.authorize_fund_sell(trade)
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fund_tx = fund_sell_contract(trade)
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print("Sent fund_tx", fund_tx)
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trade.sell.fund_tx = fund_tx
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save_state(trade, tradeid)
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elif status == 'buyerFunded':
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secret = db.get_secret(tradeid)
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print("Retrieved secret to redeem funds for {0}: {1}".format(tradeid, secret))
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txs = seller_redeem_p2sh(trade, secret)
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trade.buy.redeem_tx = txs['redeem_tx']
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save_state(trade, tradeid)
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# Remove from db? Or just from temporary file storage
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cleanup(tradeid)
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elif status == 'sellerFunded':
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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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elif status == 'sellerRedeemed':
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print("You have already redeemed the p2sh on the second chain of this trade.")
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def buyer_check_status(trade):
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sellState = check_fund_status(trade.sell.currency, trade.sell.p2sh)
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buyState = check_fund_status(trade.buy.currency, trade.buy.p2sh)
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if sellState == 'funded' and buyState == 'empty':
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return 'sellerFunded' # step1
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# TODO: Find funding txid. How does buyer get seller redeemed tx?
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elif sellState == 'funded' and hasattr(trade.buy, 'fund_tx'):
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return 'sellerRedeemed' # step3
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elif sellState == 'funded' and buyState == 'funded':
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return 'buyerFunded' # step2
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elif sellState == 'empty' and buyState == 'empty':
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if hasattr(trade.sell, 'redeem_tx'):
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return 'buyerRedeemed' # step4
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else:
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return 'init'
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def seller_check_status(trade):
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sellState = check_fund_status(trade.sell.currency, trade.sell.p2sh)
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buyState = check_fund_status(trade.buy.currency, trade.buy.p2sh)
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if sellState == 'funded' and buyState == 'empty':
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return 'sellerFunded' # step1
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elif sellState == 'funded' and hasattr(trade.buy, 'redeem_tx'):
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return 'sellerRedeemed' # step3
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# TODO: How does seller get buyer funded tx?
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elif sellState == 'funded' and buyState == 'funded':
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return 'buyerFunded' # step2
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elif sellState == 'empty' and buyState == 'empty':
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if hasattr(trade.buy, 'redeem_tx'):
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return 'buyerRedeemed' # step4
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else:
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return 'init' # step0
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def checkBuyStatus(tradeid):
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trade = db.get(tradeid)
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status = buyer_check_status(trade)
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print("Trade status: {0}\n".format(status))
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if status == 'init':
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print("Trade has not yet started, waiting for seller to fund the sell p2sh.")
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elif status == 'buyerRedeemed':
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print("This trade is complete, both sides redeemed.")
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elif status == 'sellerFunded':
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print("One active trade available, fulfilling buyer contract...")
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print("Trade commitment", trade.commitment)
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# if verify_p2sh(trade):
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fund_tx = fund_contract(trade.buy)
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print("\nYou sent this funding tx: ", fund_tx)
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trade.buy.fund_tx = fund_tx
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save_state(trade, tradeid)
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elif status == 'sellerRedeemed':
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secret = find_secret_from_fundtx(trade.buy.currency, trade.buy.p2sh, trade.buy.fund_tx)
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if secret != None:
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print("Found secret on blockchain in seller's redeem tx: ", secret)
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txs = redeem_p2sh(trade.sell, secret)
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trade.sell.redeem_tx = txs['redeem_tx']
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print("Redeem txid: ", trade.sell.redeem_tx)
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save_state(trade, tradeid)
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print("XCAT trade complete!")
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else:
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print("Secret not found in redeemtx")
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# Import a trade in hex, and save to db
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def importtrade(tradeid, hexstr=''):
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trade = x2s(hexstr)
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trade = db.instantiate(trade)
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import_addrs(trade)
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print(trade.toJSON())
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save_state(trade, tradeid)
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def wormhole_importtrade():
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res = subprocess.call('wormhole receive', shell=True)
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if res == 0:
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tradeid = input("Enter filename of received trade data to import (printed on line above): ")
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with open(tradeid) as infile:
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hexstr = infile.readline().strip()
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importtrade(tradeid, hexstr)
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print("Successfully imported trade using magic-wormhole")
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os.remove(tradeid)
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else:
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print("Importing trade using magic-wormhole failed.")
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# Export a trade by its tradeid
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def exporttrade(tradeid, wormhole=False):
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trade = db.get(tradeid)
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hexstr = s2x(trade.toJSON())
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if wormhole:
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tradefile = os.path.join(ROOT_DIR, '.tmp/{0}'.format(tradeid))
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print(tradefile)
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with open(tradefile, '+w') as outfile:
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outfile.write(hexstr)
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print("Exporting trade to buyer using magic wormhole.")
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subprocess.call('wormhole send {0}'.format(tradefile), shell=True)
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else:
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print(hexstr)
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return hexstr
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def findtrade(tradeid):
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trade = db.get(tradeid)
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print(trade.toJSON())
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return trade
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def checktrade(tradeid):
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print("In checktrade")
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trade = db.get(tradeid)
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if find_role(trade.sell) == 'test':
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input("Is this a test? Both buyer and seller addresses are yours, press 'enter' to test.")
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checkSellStatus(tradeid)
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checkBuyStatus(tradeid)
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checkSellStatus(tradeid)
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checkBuyStatus(tradeid)
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elif find_role(trade.sell) == 'initiator':
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print("You are the seller in this trade.")
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role = 'seller'
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checkSellStatus(tradeid)
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else:
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print("You are the buyer in this trade.")
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role = 'buyer'
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checkBuyStatus(tradeid)
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def newtrade(tradeid, **kwargs):
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print("Creating new XCAT trade...")
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erase_trade()
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trade = seller_init(tradeid, **kwargs)
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print("\nUse 'xcat exporttrade [tradeid]' to export the trade and sent to the buyer.\n")
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save_state(trade, tradeid)
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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 "tradeid" - create a new trade
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checktrade "tradeid"- check for actions to be taken on an existing trade
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importtrade "hexstr" - import an existing trade from a hex string
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exporttrade "tradeid" - export the data of an existing trade as a hex string. Takes the tradeid as an argument
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findtrade "tradeid" - find a trade by the tradeid
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'''))
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parser.add_argument("command", action="store", help="list commands")
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parser.add_argument("arguments", action="store", nargs="*", help="add arguments")
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parser.add_argument("-w", "--wormhole", action="store_true", help="Transfer trade data through magic-wormhole")
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parser.add_argument("-c", "--conf", action="store", help="Use default trade data in conf file.")
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parser.add_argument("-n", "--network", action="store", help="Set network to regtest or mainnet. Defaults to testnet while in beta.")
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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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command = args.command
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if command == 'importtrade':
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if args.wormhole:
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wormhole_importtrade()
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else:
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if len(args.arguments) != 2: throw("Usage: importtrade [tradeid] [hexstring]")
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tradeid = args.arguments[0]
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hexstr = args.arguments[1]
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importtrade(tradeid, hexstr)
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elif command == 'exporttrade':
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tradeid = args.arguments[0]
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exporttrade(tradeid, args.wormhole)
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elif command == "findtrade":
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print("Finding trade")
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key = args.arguments[0]
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findtrade(key)
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elif command == 'checktrade':
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tradeid = args.arguments[0]
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checktrade(tradeid)
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elif command == 'newtrade':
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if len(args.arguments) < 1: throw("Usage: newtrade [tradeid]")
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tradeid = args.arguments[0]
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newtrade(tradeid, network=args.network, conf=args.conf)
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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 of workflow starts here
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elif command == "step1":
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tradeid = args.arguments[0]
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checkSellStatus(tradeid)
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elif command == "step2":
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tradeid = args.arguments[0]
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checkBuyStatus(tradeid)
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elif command == "step3":
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tradeid = args.arguments[0]
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checkSellStatus(tradeid)
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elif command == "step4":
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tradeid = args.arguments[0]
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checkBuyStatus(tradeid)
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