multisigsync.py

#!/usr/bin/env python
#
# Synchronize multisig addresses between two running bitcoinds
#
# Example usage:
#  multisigsync.py --connect1=http://abc:123@127.0.0.1:9000 --connect2=http://abc:123@127.0.0.1:9001 2MsrtHjVXGdT7RuTEiUWzec87Cik1rPpmyD
#
# Connects to both bitcoinds, figures out which one knows all the public keys for
# the mulitisig address, then tells the other about the address.
#

from jsonrpc import ServiceProxy

def main():
  import sys
  import optparse

  parser = optparse.OptionParser(usage="%prog [options] address [address...]")
  parser.add_option("--connect1", dest="connect1", default=None,
                    help="URL for HTTP-JSON-RPC connection to first bitcoin (e.g. http://user:pass@127.0.0.1:8332)")
  parser.add_option("--connect22", dest="connect2", default=None,
                    help="URL for connection to second bitcoin")
  (options, args) = parser.parse_args()

  if options.connect1 is None or options.connect2 is None:
    parser.print_help()
    sys.exit(1)

  bitcoind = []
  bitcoind.append(ServiceProxy(options.connect1))
  bitcoind.append(ServiceProxy(options.connect2))

  for address in args:
    source = 0
    dest = 1
    r = bitcoind[source].validateaddress(address)
    if not r["ismine"]:
      (source,dest) = (dest,source)
      r = bitcoind[source].validateaddress(address)

    if "script" not in r or r["script"] != "multisig":
      print("Skipping %s (not a multisig address)"%address)
      continue
    
    pubkeys = []
    for a in r["addresses"]:
      r2 = bitcoind[source].validateaddress(a)
      pubkeys.append(r2["pubkey"])

    dest_address = bitcoind[dest].addmultisigaddress(r["sigsrequired"], pubkeys)

    if dest_address != address:
      print("Odd result: %s != %s"%(dest_address, address))
    else:
      print("Synced %s"%address)

if __name__ == '__main__':
    main()