refactor create_wallet, add wallet generate dependencies to -Qt

jmclient/jmclient/__init__.py

@@ -17,7 +17,8 @@ from .old_mnemonic import mn_decode, mn_encode
 from .slowaes import decryptData, encryptData
 from .taker import Taker
 from .wallet import (AbstractWallet, BitcoinCoreInterface, Wallet,
-                     BitcoinCoreWallet, estimate_tx_fee, WalletError)
+                     BitcoinCoreWallet, estimate_tx_fee, WalletError,
+                     create_wallet_file)
 from .configure import load_program_config, jm_single, get_p2pk_vbyte, \
     get_network, jm_single, get_network, validate_address, get_irc_mchannels, \
     check_utxo_blacklist

jmclient/jmclient/wallet.py

@@ -3,13 +3,14 @@ import json
 import os
 import pprint
 import sys
+import datetime
 from decimal import Decimal
 
 from ConfigParser import NoSectionError
 from getpass import getpass
 
 import btc
-from jmclient.slowaes import decryptData
+from jmclient.slowaes import encryptData, decryptData
 from jmclient.blockchaininterface import BitcoinCoreInterface, RegtestBitcoinCoreInterface
 from jmclient.configure import jm_single, get_network, get_p2pk_vbyte
 from jmbase.support import get_log
@@ -37,6 +38,15 @@ def estimate_tx_fee(ins, outs, txtype='p2pkh'):
     log.debug("got estimated tx bytes: "+str(tx_estimated_bytes))
     return int((tx_estimated_bytes * fee_per_kb)/Decimal(1000.0))
 
+def create_wallet_file(pwd, seed):
+    password_key = btc.bin_dbl_sha256(pwd)
+    encrypted_seed = encryptData(password_key, seed.decode('hex'))
+    timestamp = datetime.datetime.now().strftime("%Y/%m/%d %H:%M:%S")
+    return json.dumps({'creator': 'joinmarket project',
+                             'creation_time': timestamp,
+                             'encrypted_seed': encrypted_seed.encode('hex'),
+                             'network': get_network()})
+
 class AbstractWallet(object):
     """
     Abstract wallet for use with JoinMarket

scripts/joinmarket-qt.py

@@ -46,7 +46,7 @@ from jmclient import (load_program_config, get_network, Wallet,
                       get_log, weighted_order_choose, Taker,
                       JMTakerClientProtocolFactory, WalletError,
                       start_reactor, get_schedule, get_tumble_schedule,
-                      schedule_to_text)
+                      schedule_to_text, mn_decode, mn_encode, create_wallet_file)
 
 from qtsupport import (ScheduleWizard, warnings, config_tips, config_types,
                        TaskThread, QtHandler, XStream, Buttons, CloseButton,