lib/commands.py

   1 #!/usr/bin/env python
   2 #
   3 # Electrum - lightweight Bitcoin client
   4 # Copyright (C) 2011 thomasv@gitorious
   5 #
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
  18
  19
  20 from util import *
  21 from bitcoin import *
  22 from decimal import Decimal
  23 import bitcoin
  24
  25 protected_commands = ['payto', 'password', 'mktx', 'get_seed', 'importprivkey','signmessage', 'signrawtransaction','dumpprivkey' ]
  26
  27 class Commands:
  28
  29     def __init__(self, wallet, interface):
  30         self.wallet = wallet
  31         self.interface = interface
  32
  33     def _run(self, method, args, password_getter):
  34         if method in protected_commands:
  35             self.password = apply(password_getter,())
  36         f = eval('self.'+method)
  37         apply(f,args)
  38         self.password = None
  39
  40     def get_history(self, addr):
  41         h = self.wallet.get_history(addr)
  42         if h is None: h = self.wallet.interface.synchronous_get([ ('blockchain.address.get_history',[addr]) ])[0]
  43         print_json(h)
  44
  45     def listunspent(self):
  46         l = self.wallet.get_unspent_coins()
  47         for i in l: i["value"] = i["value"]*1e-8
  48         print_json(l)
  49
  50     def createrawtransaction(self, inputs, outputs):
  51         # convert to own format
  52         for i in inputs:
  53             i['tx_hash'] = i['txid']
  54             i['index'] = i['vout']
  55         outputs = map(lambda x: (x[0],int(1e8*x[1])), outputs.items())
  56         tx = Transaction.from_io(inputs, outputs)
  57         print_msg( tx )
  58
  59     def signrawtransaction(self, raw_tx, input_info, private_keys):
  60         tx = Transaction(raw_tx)
  61         unspent_coins = self.wallet.get_unspent_coins()
  62
  63         # convert private_keys to dict
  64         pk = {}
  65         for sec in private_keys:
  66             address = bitcoin.address_from_private_key(sec)
  67             pk[address] = sec
  68         private_keys = pk
  69
  70         for txin in tx.inputs:
  71             # convert to own format
  72             txin['tx_hash'] = txin['prevout_hash']
  73             txin['index'] = txin['prevout_n']
  74
  75             for item in input_info:
  76                 if item.get('txid') == txin['tx_hash'] and item.get('vout') == txin['index']:
  77                     txin['raw_output_script'] = item['scriptPubKey']
  78                     txin['redeemScript'] = item.get('redeemScript')
  79                     txin['electrumKeyID'] = item.get('electrumKeyID')
  80                     break
  81             else:
  82                 for item in unspent_coins:
  83                     if txin['tx_hash'] == item['tx_hash'] and txin['index'] == item['index']:
  84                         txin['raw_output_script'] = item['raw_output_script']
  85                         break
  86                 else:
  87                     # if neither, we might want to get it from the server..
  88                     raise
  89
  90             # find the address:
  91             import deserialize
  92             if txin.get('electrumKeyID'):
  93                 n, for_change = txin.get('electrumKeyID')
  94                 sec = wallet.sequence.get_private_key(n, for_change, seed)
  95                 address = bitcoin.address_from_private_key(sec)
  96                 txin['address'] = address
  97                 private_keys[address] = sec
  98
  99             elif txin.get("redeemScript"):
 100                 txin['address'] = bitcoin.hash_160_to_bc_address(bitcoin.hash_160(txin.get("redeemScript").decode('hex')), 5)
 101
 102             elif txin.get("raw_output_script"):
 103                 addr = deserialize.get_address_from_output_script(txin.get("raw_output_script").decode('hex'))
 104                 sec = wallet.get_private_key(addr, self.password)
 105                 if sec:
 106                     private_keys[addr] = sec
 107                     txin['address'] = addr
 108
 109         tx.sign( private_keys )
 110         print_json({ "hex":str(tx),"complete":tx.is_complete})
 111
 112     def decoderawtransaction(self, raw):
 113         tx = Transaction(raw)
 114         print_json( tx.deserialize() )
 115
 116     def sendrawtransaction(self, raw):
 117         tx = Transaction(raw)
 118         r, h = wallet.sendtx( tx )
 119         print_msg(h)
 120
 121     def createmultisig(self, num, pubkeys):
 122         assert isinstance(pubkeys, list)
 123         print_json( Transaction.multisig_script(pubkeys, num) )
 124
 125     def freeze(self,addr):
 126         print_msg(self.wallet.freeze(addr))
 127
 128     def unfreeze(self,addr):
 129         print_msg(self.wallet.unfreeze(addr))
 130
 131     def prioritize(self, addr):
 132         print_msg(self.wallet.prioritize(addr))
 133
 134     def unprioritize(self, addr):
 135         print_msg(self.wallet.unprioritize(addr))
 136
 137     def dumpprivkey(self, addr):
 138         sec = self.wallet.get_private_key(addr, self.password)
 139         print_msg( sec )
 140
 141     def validateaddress(self,addr):
 142         is_valid = self.wallet.is_valid(addr)
 143         out = { 'isvalid':is_valid }
 144         if is_valid:
 145             is_mine = self.wallet.is_mine(addr)
 146             out['address'] = addr
 147             out['ismine'] = is_mine
 148             if is_mine:
 149                 out['pubkey'] = self.wallet.get_public_key(addr)
 150
 151         print_json(out)
 152
 153
 154     def balance(self, addresses = []):
 155         if addresses == []:
 156             c, u = self.wallet.get_balance()
 157             if u:
 158                 print_msg(Decimal( c ) / 100000000 , Decimal( u ) / 100000000)
 159             else:
 160                 print_msg(Decimal( c ) / 100000000)
 161         else:
 162             for addr in addresses:
 163                 c, u = wallet.get_addr_balance(addr)
 164                 if u:
 165                     print_msg("%s %s, %s" % (addr, str(Decimal(c)/100000000), str(Decimal(u)/100000000)))
 166                 else:
 167                     print_msg("%s %s" % (addr, str(Decimal(c)/100000000)))
 168
 169
 170     def get_seed(self):
 171         import mnemonic
 172         seed = self.wallet.decode_seed(self.password)
 173         print_msg(seed + ' "' + ' '.join(mnemonic.mn_encode(seed)) + '"')
 174
 175     def importprivkey(self, sec):
 176         try:
 177             addr = wallet.import_key(sec,self.password)
 178             wallet.save()
 179             print_msg("Keypair imported: ", addr)
 180         except BaseException as e:
 181             print_msg("Error: Keypair import failed: " + str(e))
 182
 183
 184     def sign_message(self, address, message):
 185         print_msg(self.wallet.sign_message(address, message, self.password))
 186
 187
 188     def verify_message(self, address, signature, message):
 189         try:
 190             EC_KEY.verify_message(address, signature, message)
 191             print_msg(True)
 192         except BaseException as e:
 193             print_error("Verification error: {0}".format(e))
 194             print_msg(False)
 195
 196
 197     def _mktx(self, to_address, amount, fee = None, change_addr = None, from_addr = None):
 198         for k, v in self.wallet.labels.items():
 199             if v == to_address:
 200                 to_address = k
 201                 print_msg("alias", to_address)
 202                 break
 203             if change_addr and v == change_addr:
 204                 change_addr = k
 205
 206         amount = int(10000000*amount)
 207         if fee: fee = int(10000000*fee)
 208         return self.wallet.mktx( [(to_address, amount)], self.password, fee , change_addr, from_addr)
 209
 210
 211     def mktx(self, to_address, amount, fee = None, change_addr = None, from_addr = None):
 212         tx = self._mktx(to_address, amount, fee, change_addr, from_addr)
 213         out = {"hex":str(tx), "complete":tx.is_complete}
 214         if not tx.is_complete:
 215             out['input_info'] = repr(tx.input_info).replace(' ','')
 216         print_json(out)
 217
 218
 219     def payto(self, to_address, amount, fee = None, change_addr = None, from_addr = None):
 220         tx = self._mktx(to_address, amount, fee, change_addr, from_addr)
 221         r, h = wallet.sendtx( tx )
 222         print_msg(h)
 223
 224
 225     def history(self):
 226         import datetime
 227         balance = 0
 228         for item in self.wallet.get_tx_history():
 229             tx_hash, conf, is_mine, value, fee, balance, timestamp = item
 230             try:
 231                 time_str = datetime.datetime.fromtimestamp( timestamp).isoformat(' ')[:-3]
 232             except:
 233                 time_str = "----"
 234
 235             label, is_default_label = self.wallet.get_label(tx_hash)
 236             if not label: label = tx_hash
 237             else: label = label + ' '*(64 - len(label) )
 238
 239             print_msg("%17s"%time_str, "  " + label + "  " + format_satoshis(value)+ "  "+ format_satoshis(balance))
 240         print_msg("# balance: ", format_satoshis(balance))
 241
 242
 243     def setlabel(self, tx, label):
 244         self.wallet.labels[tx] = label
 245         self.wallet.save()
 246
 247
 248     def contacts(self):
 249         c = {}
 250         for addr in self.wallet.addressbook:
 251             c[addr] = self.wallet.labels.get(addr)
 252         print_json(c)
 253