-WIP-electrum-btcp/client/electrum.py

933 lines
33 KiB
Python
Executable File

#!/usr/bin/env python
#
# Electrum - lightweight Bitcoin client
# Copyright (C) 2011 thomasv@gitorious
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import sys, base64, os, re, hashlib, socket, getpass, copy, operator, ast
from decimal import Decimal
from ecdsa.util import string_to_number
try:
import ecdsa
except:
print "python-ecdsa does not seem to be installed. Try 'sudo easy_install ecdsa'"
sys.exit(1)
try:
import aes
except:
print "AES does not seem to be installed. Try 'sudo easy_install slowaes'"
sys.exit(1)
############ functions from pywallet #####################
addrtype = 0
def hash_160(public_key):
md = hashlib.new('ripemd160')
md.update(hashlib.sha256(public_key).digest())
return md.digest()
def public_key_to_bc_address(public_key):
h160 = hash_160(public_key)
return hash_160_to_bc_address(h160)
def hash_160_to_bc_address(h160):
vh160 = chr(addrtype) + h160
h = Hash(vh160)
addr = vh160 + h[0:4]
return b58encode(addr)
def bc_address_to_hash_160(addr):
bytes = b58decode(addr, 25)
return bytes[1:21]
__b58chars = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
__b58base = len(__b58chars)
def b58encode(v):
""" encode v, which is a string of bytes, to base58.
"""
long_value = 0L
for (i, c) in enumerate(v[::-1]):
long_value += (256**i) * ord(c)
result = ''
while long_value >= __b58base:
div, mod = divmod(long_value, __b58base)
result = __b58chars[mod] + result
long_value = div
result = __b58chars[long_value] + result
# Bitcoin does a little leading-zero-compression:
# leading 0-bytes in the input become leading-1s
nPad = 0
for c in v:
if c == '\0': nPad += 1
else: break
return (__b58chars[0]*nPad) + result
def b58decode(v, length):
""" decode v into a string of len bytes
"""
long_value = 0L
for (i, c) in enumerate(v[::-1]):
long_value += __b58chars.find(c) * (__b58base**i)
result = ''
while long_value >= 256:
div, mod = divmod(long_value, 256)
result = chr(mod) + result
long_value = div
result = chr(long_value) + result
nPad = 0
for c in v:
if c == __b58chars[0]: nPad += 1
else: break
result = chr(0)*nPad + result
if length is not None and len(result) != length:
return None
return result
def Hash(data):
return hashlib.sha256(hashlib.sha256(data).digest()).digest()
def EncodeBase58Check(vchIn):
hash = Hash(vchIn)
return b58encode(vchIn + hash[0:4])
def DecodeBase58Check(psz):
vchRet = b58decode(psz, None)
key = vchRet[0:-4]
csum = vchRet[-4:]
hash = Hash(key)
cs32 = hash[0:4]
if cs32 != csum:
return None
else:
return key
def PrivKeyToSecret(privkey):
return privkey[9:9+32]
def SecretToASecret(secret):
vchIn = chr(addrtype+128) + secret
return EncodeBase58Check(vchIn)
def ASecretToSecret(key):
vch = DecodeBase58Check(key)
if vch and vch[0] == chr(addrtype+128):
return vch[1:]
else:
return False
########### end pywallet functions #######################
def int_to_hex(i, length=1):
s = hex(i)[2:].rstrip('L')
s = "0"*(2*length - len(s)) + s
return s.decode('hex')[::-1].encode('hex')
EncodeAES = lambda secret, s: base64.b64encode(aes.encryptData(secret,s))
DecodeAES = lambda secret, e: aes.decryptData(secret, base64.b64decode(e))
# secp256k1, http://www.oid-info.com/get/1.3.132.0.10
_p = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2FL
_r = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141L
_b = 0x0000000000000000000000000000000000000000000000000000000000000007L
_a = 0x0000000000000000000000000000000000000000000000000000000000000000L
_Gx = 0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798L
_Gy = 0x483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8L
curve_secp256k1 = ecdsa.ellipticcurve.CurveFp( _p, _a, _b )
generator_secp256k1 = ecdsa.ellipticcurve.Point( curve_secp256k1, _Gx, _Gy, _r )
oid_secp256k1 = (1,3,132,0,10)
SECP256k1 = ecdsa.curves.Curve("SECP256k1", curve_secp256k1, generator_secp256k1, oid_secp256k1 )
def filter(s):
out = re.sub('( [^\n]*|)\n','',s)
out = out.replace(' ','')
out = out.replace('\n','')
return out
def raw_tx( inputs, outputs, for_sig = None ):
s = int_to_hex(1,4) + ' version\n'
s += int_to_hex( len(inputs) ) + ' number of inputs\n'
for i in range(len(inputs)):
_, _, p_hash, p_index, p_script, pubkey, sig = inputs[i]
s += p_hash.decode('hex')[::-1].encode('hex') + ' prev hash\n'
s += int_to_hex(p_index,4) + ' prev index\n'
if for_sig is None:
sig = sig + chr(1) # hashtype
script = int_to_hex( len(sig)) + ' push %d bytes\n'%len(sig)
script += sig.encode('hex') + ' sig\n'
pubkey = chr(4) + pubkey
script += int_to_hex( len(pubkey)) + ' push %d bytes\n'%len(pubkey)
script += pubkey.encode('hex') + ' pubkey\n'
elif for_sig==i:
script = p_script + ' scriptsig \n'
else:
script=''
s += int_to_hex( len(filter(script))/2 ) + ' script length \n'
s += script
s += "ffffffff" + ' sequence\n'
s += int_to_hex( len(outputs) ) + ' number of outputs\n'
for output in outputs:
addr, amount = output
s += int_to_hex( amount, 8) + ' amount: %d\n'%amount
script = '76a9' # op_dup, op_hash_160
script += '14' # push 0x14 bytes
script += bc_address_to_hash_160(addr).encode('hex')
script += '88ac' # op_equalverify, op_checksig
s += int_to_hex( len(filter(script))/2 ) + ' script length \n'
s += script + ' script \n'
s += int_to_hex(0,4) # lock time
if for_sig is not None: s += int_to_hex(1, 4) # hash type
return s
class InvalidPassword(Exception):
pass
from version import ELECTRUM_VERSION, SEED_VERSION
class Wallet:
def __init__(self, wallet_path):
self.electrum_version = ELECTRUM_VERSION
self.seed_version = SEED_VERSION
self.gap_limit = 5 # configuration
self.host = 'ecdsa.org'
self.port = 50000
self.fee = 100000
self.servers = ['ecdsa.org','electrum.novit.ro'] # list of default servers
self.master_public_key = None
# saved fields
self.use_encryption = False
self.addresses = [] # receiving addresses visible for user
self.change_addresses = [] # addresses used as change
self.seed = '' # encrypted
self.status = {} # current status of addresses
self.history = {}
self.labels = {} # labels for addresses and transactions
self.addressbook = [] # outgoing addresses, for payments
self.blocks = 0
# not saved
self.message = ''
self.tx_history = {}
self.rtime = 0
self.init_path(wallet_path)
def init_path(self, wallet_path):
if wallet_path is not None:
self.path = wallet_path
else:
# backward compatibility: look for wallet file in the default data directory
if "HOME" in os.environ:
wallet_dir = os.path.join( os.environ["HOME"], '.electrum')
elif "LOCALAPPDATA" in os.environ:
wallet_dir = os.path.join( os.environ["LOCALAPPDATA"], 'Electrum' )
elif "APPDATA" in os.environ:
wallet_dir = os.path.join( os.environ["APPDATA"], 'Electrum' )
else:
raise BaseException("No home directory found in environment variables.")
if not os.path.exists( wallet_dir ): os.mkdir( wallet_dir )
self.path = os.path.join( wallet_dir, 'electrum.dat' )
def new_seed(self, password):
seed = "%032x"%ecdsa.util.randrange( pow(2,128) )
self.init_mpk(seed)
# encrypt
self.seed = wallet.pw_encode( seed, password )
def init_mpk(self,seed):
# public key
curve = SECP256k1
secexp = self.stretch_key(seed)
master_private_key = ecdsa.SigningKey.from_secret_exponent( secexp, curve = SECP256k1 )
self.master_public_key = master_private_key.get_verifying_key().to_string()
def all_addresses(self):
return self.addresses + self.change_addresses
def is_mine(self, address):
return address in self.all_addresses()
def is_change(self, address):
return address in self.change_addresses
def is_valid(self,addr):
ADDRESS_RE = re.compile('[1-9A-HJ-NP-Za-km-z]{26,}\\Z')
if not ADDRESS_RE.match(addr): return False
h = bc_address_to_hash_160(addr)
return addr == hash_160_to_bc_address(h)
def stretch_key(self,seed):
oldseed = seed
for i in range(100000):
seed = hashlib.sha256(seed + oldseed).digest()
return string_to_number( seed )
def get_sequence(self,n,for_change):
return string_to_number( Hash( "%d:%d:"%(n,for_change) + self.master_public_key ) )
def get_private_key2(self, address, password):
""" Privatekey(type,n) = Master_private_key + H(n|S|type) """
if address in self.addresses:
n = self.addresses.index(address)
for_change = False
elif address in self.change_addresses:
n = self.change_addresses.index(address)
for_change = True
else:
raise BaseException("unknown address")
seed = self.pw_decode( self.seed, password)
secexp = self.stretch_key(seed)
order = generator_secp256k1.order()
privkey_number = ( secexp + self.get_sequence(n,for_change) ) % order
private_key = ecdsa.SigningKey.from_secret_exponent( privkey_number, curve = SECP256k1 )
# sanity check
#public_key = private_key.get_verifying_key()
#assert address == public_key_to_bc_address( '04'.decode('hex') + public_key.to_string() )
return private_key
def create_new_address2(self, for_change):
""" Publickey(type,n) = Master_public_key + H(n|S|type)*point """
curve = SECP256k1
n = len(self.change_addresses) if for_change else len(self.addresses)
z = self.get_sequence(n,for_change)
master_public_key = ecdsa.VerifyingKey.from_string( self.master_public_key, curve = SECP256k1 )
pubkey_point = master_public_key.pubkey.point + z*curve.generator
public_key2 = ecdsa.VerifyingKey.from_public_point( pubkey_point, curve = SECP256k1 )
address = public_key_to_bc_address( '04'.decode('hex') + public_key2.to_string() )
if for_change:
self.change_addresses.append(address)
else:
self.addresses.append(address)
# updates
print address
self.history[address] = h = self.retrieve_history(address)
self.status[address] = h[-1]['blk_hash'] if h else None
self.save()
return address
def synchronize(self):
while True:
if self.change_addresses == []:
self.create_new_address2(True)
continue
a = self.change_addresses[-1]
if self.history.get(a):
self.create_new_address2(True)
else:
break
n = self.gap_limit
while True:
if len(self.addresses) < n:
self.create_new_address2(False)
continue
if map( lambda a: self.history.get(a), self.addresses[-n:] ) == n*[[]]:
break
else:
self.create_new_address2(False)
is_found = (len(self.change_addresses) > 1 ) or ( len(self.addresses) > self.gap_limit )
if not is_found: return False
# history and addressbook
self.update_tx_history()
for tx in self.tx_history.values():
if tx['value']<0:
for i in tx['outputs']:
if not self.is_mine(i) and i not in self.addressbook:
self.addressbook.append(i)
# redo labels
self.update_tx_labels()
return True
def save(self):
s = {
'seed_version':self.seed_version,
'use_encryption':self.use_encryption,
'master_public_key': self.master_public_key,
'fee':self.fee,
'host':self.host,
'port':self.port,
'blocks':self.blocks,
'seed':self.seed,
'addresses':self.addresses,
'change_addresses':self.change_addresses,
'status':self.status,
'history':self.history,
'labels':self.labels,
'contacts':self.addressbook
}
f = open(self.path,"w")
f.write( repr(s) )
f.close()
def read(self):
try:
f = open(self.path,"r")
data = f.read()
f.close()
except:
return False
try:
d = ast.literal_eval( data )
self.seed_version = d.get('seed_version')
self.master_public_key = d.get('master_public_key')
self.use_encryption = d.get('use_encryption')
self.fee = int( d.get('fee') )
self.host = d.get('host')
self.port = d.get('port')
self.blocks = d.get('blocks')
self.seed = d.get('seed')
self.addresses = d.get('addresses')
self.change_addresses = d.get('change_addresses')
self.status = d.get('status')
self.history = d.get('history')
self.labels = d.get('labels')
self.addressbook = d.get('contacts')
except:
raise BaseException("Error; could not parse wallet. If this is an old wallet format, please use upgrade.py.",0)
self.update_tx_history()
if self.seed_version != SEED_VERSION:
raise BaseException("""Seed version mismatch: your wallet seed is deprecated.
Please create a new wallet, and send your coins to the new wallet.
We apologize for the inconvenience. We try to keep this kind of upgrades as rare as possible.
See the release notes for more information.""",1)
return True
def get_new_address(self):
n = 0
for addr in self.addresses[-self.gap_limit:]:
if not self.history.get(addr):
n = n + 1
if n < self.gap_limit:
new_address = self.create_new_address2(False)
self.history[new_address] = [] #get from server
return True, new_address
else:
return False, "The last %d addresses in your list have never been used. You should use them first, or increase the allowed gap size in your preferences. "%self.gap_limit
def get_addr_balance(self, addr):
h = self.history.get(addr)
if not h: return 0,0
c = u = 0
for item in h:
v = item['value']
if item['height']:
c += v
else:
u += v
return c, u
def get_balance(self):
conf = unconf = 0
for addr in self.all_addresses():
c, u = self.get_addr_balance(addr)
conf += c
unconf += u
return conf, unconf
def use_http(self):
return self.port in [80,8080,443]
def request(self, request ):
import time
t1 = time.time()
if self.use_http():
import httplib, urllib
params = urllib.urlencode({'q':request})
headers = {"Content-type": "application/x-www-form-urlencoded", "Accept": "text/plain"}
conn = httplib.HTTPSConnection(self.host) if self.port == 443 else httplib.HTTPConnection(self.host)
conn.request("POST", "/electrum.php", params, headers)
response = conn.getresponse()
if response.status == 200:
out = response.read()
else: out = ''
conn.close()
else:
request += "#"
s = socket.socket( socket.AF_INET, socket.SOCK_STREAM)
s.connect(( self.host, self.port))
s.send( request )
out = ''
while 1:
msg = s.recv(1024)
if msg: out += msg
else: break
s.close()
self.rtime = time.time() - t1
return out
def send_tx(self, data):
return self.request( repr ( ('tx', data )))
def retrieve_history(self, address):
return ast.literal_eval( self.request( repr ( ('h', address ))) )
def poll(self):
return ast.literal_eval( self.request( repr ( ('poll', self.session_id ))))
def new_session(self):
self.session_id, self.message = ast.literal_eval( self.request( repr ( ('new_session', repr( (self.electrum_version, self.all_addresses())) ))))
def update_session(self):
return self.request( repr ( ('update_session', repr((self.session_id, self.all_addresses())))))
def get_servers(self):
self.servers = map( lambda x:x[1], ast.literal_eval( self.request( repr ( ('peers', '' )))) )
def update(self):
blocks, changed_addresses = self.poll()
if blocks == -1: raise BaseException("session not found")
self.blocks = int(blocks)
for addr, blk_hash in changed_addresses.items():
if self.status.get(addr) != blk_hash:
print "updating history for", addr
self.history[addr] = self.retrieve_history(addr)
self.status[addr] = blk_hash
if changed_addresses:
self.synchronize()
self.save()
return True
else:
return False
def choose_tx_inputs( self, amount, fixed_fee ):
""" todo: minimize tx size """
total = 0
fee = self.fee if fixed_fee is None else fixed_fee
coins = []
for addr in self.all_addresses():
h = self.history.get(addr)
if h is None: continue
for item in h:
if item.get('raw_scriptPubKey'):
coins.append( (addr,item))
coins = sorted( coins, key = lambda x: x[1]['nTime'] )
inputs = []
for c in coins:
addr, item = c
v = item.get('value')
total += v
inputs.append((addr, v, item['tx_hash'], item['pos'], item['raw_scriptPubKey'], None, None) )
fee = self.fee*len(inputs) if fixed_fee is None else fixed_fee
if total >= amount + fee: break
else:
#print "not enough funds: %d %d"%(total, fee)
inputs = []
return inputs, total, fee
def choose_tx_outputs( self, to_addr, amount, fee, total ):
outputs = [ (to_addr, amount) ]
change_amount = total - ( amount + fee )
if change_amount != 0:
# first look for unused change addresses
for addr in self.change_addresses:
if self.history.get(addr): continue
change_address = addr
break
else:
change_address = self.create_new_address2(True)
print "new change address", change_address
outputs.append( (change_address, change_amount) )
return outputs
def sign_inputs( self, inputs, outputs, password ):
s_inputs = []
for i in range(len(inputs)):
addr, v, p_hash, p_pos, p_scriptPubKey, _, _ = inputs[i]
private_key = self.get_private_key2(addr, password)
public_key = private_key.get_verifying_key()
pubkey = public_key.to_string()
tx = filter( raw_tx( inputs, outputs, for_sig = i ) )
sig = private_key.sign_digest( Hash( tx.decode('hex') ), sigencode = ecdsa.util.sigencode_der )
assert public_key.verify_digest( sig, Hash( tx.decode('hex') ), sigdecode = ecdsa.util.sigdecode_der)
s_inputs.append( (addr, v, p_hash, p_pos, p_scriptPubKey, pubkey, sig) )
return s_inputs
def pw_encode(self, s, password):
if password:
secret = Hash(password)
return EncodeAES(secret, s)
else:
return s
def pw_decode(self, s, password):
if password:
secret = Hash(password)
d = DecodeAES(secret, s)
try:
d.decode('hex')
except:
raise InvalidPassword()
return d
else:
return s
def get_tx_history(self):
lines = self.tx_history.values()
lines = sorted(lines, key=operator.itemgetter("nTime"))
return lines
def update_tx_history(self):
self.tx_history= {}
for addr in self.all_addresses():
h = self.history.get(addr)
if h is None: continue
for tx in h:
tx_hash = tx['tx_hash']
line = self.tx_history.get(tx_hash)
if not line:
self.tx_history[tx_hash] = copy.copy(tx)
line = self.tx_history.get(tx_hash)
else:
line['value'] += tx['value']
if line['height'] == 0:
line['nTime'] = 1e12
self.update_tx_labels()
def update_tx_labels(self):
for tx in self.tx_history.values():
default_label = ''
if tx['value']<0:
for o_addr in tx['outputs']:
if not self.is_change(o_addr):
dest_label = self.labels.get(o_addr)
if dest_label:
default_label = 'to: ' + dest_label
else:
default_label = 'to: ' + o_addr
else:
for o_addr in tx['outputs']:
if self.is_mine(o_addr) and not self.is_change(o_addr):
dest_label = self.labels.get(o_addr)
if dest_label:
default_label = 'at: ' + dest_label
else:
default_label = 'at: ' + o_addr
tx['default_label'] = default_label
def mktx(self, to_address, amount, label, password, fee=None):
if not self.is_valid(to_address):
return False, "Invalid address"
inputs, total, fee = wallet.choose_tx_inputs( amount, fee )
if not inputs: return False, "Not enough funds %d %d"%(total, fee)
try:
outputs = wallet.choose_tx_outputs( to_address, amount, fee, total )
s_inputs = wallet.sign_inputs( inputs, outputs, password )
except InvalidPassword:
return False, "Wrong password"
tx = filter( raw_tx( s_inputs, outputs ) )
if to_address not in self.addressbook:
self.addressbook.append(to_address)
if label:
tx_hash = Hash(tx.decode('hex') )[::-1].encode('hex')
wallet.labels[tx_hash] = label
wallet.save()
return True, tx
def sendtx(self, tx):
tx_hash = Hash(tx.decode('hex') )[::-1].encode('hex')
out = self.send_tx(tx)
if out != tx_hash:
return False, "error: " + out
return True, out
from optparse import OptionParser
if __name__ == '__main__':
known_commands = ['help', 'validateaddress', 'balance', 'contacts', 'create', 'payto', 'sendtx', 'password', 'newaddress', 'addresses', 'history', 'label', 'gui', 'mktx','seed','t2']
usage = "usage: %prog [options] command args\nCommands: "+ (', '.join(known_commands))
parser = OptionParser(usage=usage)
parser.add_option("-w", "--wallet", dest="wallet_path", help="wallet path (default: electrum.dat)")
parser.add_option("-a", "--all", action="store_true", dest="show_all", default=False, help="show all addresses")
parser.add_option("-b", "--balance", action="store_true", dest="show_balance", default=False, help="show the balance at listed addresses")
parser.add_option("-k", "--keys",action="store_true", dest="show_keys",default=False, help="show the private keys of listed addresses")
parser.add_option("-f", "--fee", dest="tx_fee", default=0.005, help="set tx fee")
options, args = parser.parse_args()
try:
cmd = args[0]
except:
cmd = "gui"
try:
firstarg = args[1]
except:
firstarg = ''
if cmd not in known_commands:
cmd = 'help'
wallet = Wallet(options.wallet_path)
if cmd == 'gui':
import gui
gui.init_wallet(wallet)
gui = gui.BitcoinGUI(wallet)
gui.main()
wallet.save()
sys.exit(0)
if not wallet.read() and cmd not in ['help','create']:
print "Wallet file not found."
print "Type 'electrum.py create' to create a new wallet, or provide a path to a wallet with the -d option"
sys.exit(0)
if cmd == 'create':
if wallet.read():
print "remove the existing wallet first!"
sys.exit(0)
password = getpass.getpass("Password (hit return if you do not wish to encrypt your wallet):")
if password:
password2 = getpass.getpass("Confirm password:")
if password != password2:
print "error"
sys.exit(1)
else:
password = None
print "in order to use wallet encryption, please install pycrypto (sudo easy_install pycrypto)"
host = raw_input("server (default:ecdsa.org):")
port = raw_input("port (default:50000):")
fee = raw_input("fee (default 0.005):")
if fee: wallet.fee = float(fee)
if host: wallet.host = host
if port: wallet.port = int(port)
seed = raw_input("if you are restoring an existing wallet, enter the seed. otherwise just press enter: ")
wallet.gap_limit = 5
if seed:
wallet.seed = seed
gap = raw_input("gap limit (default 5):")
if gap: wallet.gap_limit = int(gap)
print "recovering wallet..."
r = wallet.synchronize()
if r:
print "recovery successful"
wallet.save()
else:
print "no wallet found"
else:
wallet.new_seed(None)
print "Your seed is", wallet.seed
print "Please store it safely"
# generate first key
wallet.create_new_address2(False)
# check syntax
if cmd in ['payto', 'mktx']:
try:
to_address = args[1]
amount = int( 100000000 * Decimal(args[2]) )
label = ' '.join(args[3:])
if options.tx_fee: options.tx_fee = int( 100000000 * Decimal(options.tx_fee) )
except:
firstarg = cmd
cmd = 'help'
# open session
if cmd not in ['password', 'mktx', 'history', 'label', 'contacts', 'help', 'validateaddress']:
wallet.new_session()
wallet.update()
wallet.save()
# commands needing password
if cmd in ['payto', 'password', 'mktx', 'seed' ] or ( cmd=='addresses' and options.show_keys):
password = getpass.getpass('Password:') if wallet.use_encryption else None
if cmd=='help':
cmd2 = firstarg
if cmd2 not in known_commands:
print "known commands:", ', '.join(known_commands)
print "help <command> shows the help on a specific command"
elif cmd2 == 'balance':
print "display the balance of your wallet"
elif cmd2 == 'contacts':
print "show your list of contacts"
elif cmd2 == 'payto':
print "payto <recipient> <amount> [label]"
print "create and broadcast a transaction."
print "<recipient> can be a bitcoin address or a label"
elif cmd2== 'sendtx':
print "sendtx <tx>"
print "broadcast a transaction to the network. <tx> must be in hexadecimal"
elif cmd2 == 'password':
print "change your password"
elif cmd2 == 'newaddress':
print "create a new receiving address. password is needed."
elif cmd2 == 'addresses':
print "show your list of addresses. options: -a, -k, -b"
elif cmd2 == 'history':
print "show the transaction history"
elif cmd2 == 'label':
print "assign a label to an item"
elif cmd2 == 'gui':
print "start the GUI"
elif cmd2 == 'mktx':
print "create a signed transaction. password protected"
print "syntax: mktx <recipient> <amount> [label]"
elif cmd2 == 'seed':
print "show generation seed of your wallet. password protected."
elif cmd == 'seed':
import mnemonic
seed = wallet.pw_decode( wallet.seed, password)
print seed, '"'+' '.join(mnemonic.mn_encode(seed))+'"'
elif cmd == 'validateaddress':
addr = args[1]
print wallet.is_valid(addr)
elif cmd == 't2':
wallet.create_t2_address(password)
elif cmd == 'balance':
c, u = wallet.get_balance()
if u:
print c*1e-8, u*1e-8
else:
print c*1e-8
elif cmd in [ 'contacts']:
for addr in wallet.addressbook:
print addr, " ", wallet.labels.get(addr)
elif cmd in [ 'addresses']:
if options.show_keys: private_keys = ast.literal_eval( wallet.pw_decode( wallet.private_keys, password ) )
for addr in wallet.addresses:
if options.show_all or not wallet.is_change(addr):
label = wallet.labels.get(addr) if not wallet.is_change(addr) else "[change]"
if label is None: label = ''
if options.show_balance:
h = wallet.history.get(addr)
ni = no = 0
for item in h:
if item['is_in']: ni += 1
else: no += 1
b = "%d %d %f"%(no, ni, wallet.get_addr_balance(addr)[0]*1e-8)
else: b=''
pk = private_keys[wallet.addresses.index(addr)] if options.show_keys else ''
print addr, pk, b, label
if cmd == 'history':
lines = wallet.get_tx_history()
b = 0
for line in lines:
import datetime
v = 1.*line['value']/1e8
b += v
v_str = "%f"%v if v<0 else "+%f"%v
try:
time_str = datetime.datetime.fromtimestamp( line['nTime'])
except:
print line['nTime']
time_str = 'pending'
label = line.get('label')
if not label: label = line['tx_hash']
else: label = label + ' '*(64 - len(label) )
print time_str, " ", label, " ", v_str, " ", "%f"%b
print "# balance: ", b
elif cmd == 'label':
try:
tx = args[1]
label = ' '.join(args[2:])
except:
print "syntax: label <tx_hash> <text>"
sys.exit(1)
wallet.labels[tx] = label
wallet.save()
elif cmd in ['payto', 'mktx']:
for k, v in wallet.labels.items():
if v == to_address:
to_address = k
print "alias", to_address
break
r, h = wallet.mktx( to_address, amount, label, password, fee = options.tx_fee )
if r and cmd=='payto':
r, h = wallet.sendtx( tx )
print h
else:
print h
elif cmd == 'sendtx':
tx = args[1]
r, h = wallet.sendtx( tx )
print h
elif cmd == 'newaddress':
s, a = wallet.get_new_address()
print a
elif cmd == 'password':
try:
seed = wallet.pw_decode( wallet.seed, password)
except:
print "sorry"
sys.exit(1)
new_password = getpass.getpass('New password:')
if new_password == getpass.getpass('Confirm new password:'):
wallet.use_encryption = (new_password != '')
wallet.seed = wallet.pw_encode( seed, new_password)
wallet.save()
else:
print "error: mismatch"