#
# 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 base64
+from functools import partial
+from itertools import imap
+import random
+import string
+import threading
+import time
+import hashlib
+import re
+import sys
-
-import hashlib, base64, re
+__b58chars = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
+__b58base = len(__b58chars)
def rev_hex(s):
return s.decode('hex')[::-1].encode('hex')
+
def int_to_hex(i, length=1):
s = hex(i)[2:].rstrip('L')
s = "0"*(2*length - len(s)) + s
return rev_hex(s)
+
def var_int(i):
- if i<0xfd:
+ if i < 0xfd:
return int_to_hex(i)
- elif i<=0xffff:
- return "fd"+int_to_hex(i,2)
- elif i<=0xffffffff:
- return "fe"+int_to_hex(i,4)
+ elif i <= 0xffff:
+ return "fd" + int_to_hex(i, 2)
+ elif i <= 0xffffffff:
+ return "fe" + int_to_hex(i, 4)
else:
- return "ff"+int_to_hex(i,8)
+ return "ff" + int_to_hex(i, 8)
Hash = lambda x: hashlib.sha256(hashlib.sha256(x).digest()).digest()
+
+
hash_encode = lambda x: x[::-1].encode('hex')
+
+
hash_decode = lambda x: x.decode('hex')[::-1]
def header_to_string(res):
pbh = res.get('prev_block_hash')
- if pbh is None: pbh = '0'*64
- s = int_to_hex(res.get('version'),4) \
+ if pbh is None:
+ pbh = '0'*64
+
+ return int_to_hex(res.get('version'), 4) \
+ rev_hex(pbh) \
+ rev_hex(res.get('merkle_root')) \
- + int_to_hex(int(res.get('timestamp')),4) \
- + int_to_hex(int(res.get('bits')),4) \
- + int_to_hex(int(res.get('nonce')),4)
- return s
+ + int_to_hex(int(res.get('timestamp')), 4) \
+ + int_to_hex(int(res.get('bits')), 4) \
+ + int_to_hex(int(res.get('nonce')), 4)
+
+
+def hex_to_int(s):
+ return eval('0x' + s[::-1].encode('hex'))
-def header_from_string( s):
- hex_to_int = lambda s: eval('0x' + s[::-1].encode('hex'))
- h = {}
- h['version'] = hex_to_int(s[0:4])
- h['prev_block_hash'] = hash_encode(s[4:36])
- h['merkle_root'] = hash_encode(s[36:68])
- h['timestamp'] = hex_to_int(s[68:72])
- h['bits'] = hex_to_int(s[72:76])
- h['nonce'] = hex_to_int(s[76:80])
- return h
+def header_from_string(s):
+ return {
+ 'version': hex_to_int(s[0:4]),
+ 'prev_block_hash': hash_encode(s[4:36]),
+ 'merkle_root': hash_encode(s[36:68]),
+ 'timestamp': hex_to_int(s[68:72]),
+ 'bits': hex_to_int(s[72:76]),
+ 'nonce': hex_to_int(s[76:80]),
+ }
-############ functions from pywallet #####################
+
+############ functions from pywallet #####################
addrtype = 0
+
def hash_160(public_key):
try:
md = hashlib.new('ripemd160')
def public_key_to_bc_address(public_key):
- h160 = hash_160(public_key)
- return hash_160_to_bc_address(h160)
+ return hash_160_to_bc_address(hash_160(public_key))
+
def hash_160_to_bc_address(h160):
- if h160 == 'None': return 'None'
+ if h160 == 'None':
+ return 'None'
vh160 = chr(addrtype) + h160
h = Hash(vh160)
addr = vh160 + h[0:4]
return b58encode(addr)
+
def bc_address_to_hash_160(addr):
- if addr == 'None': return 'None'
+ if addr == 'None':
+ return 'None'
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."""
+ """encode v, which is a string of bytes, to base58."""
long_value = 0L
for (i, c) in enumerate(v[::-1]):
# leading 0-bytes in the input become leading-1s
nPad = 0
for c in v:
- if c == '\0': nPad += 1
- else: break
+ 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
nPad = 0
for c in v:
- if c == __b58chars[0]: nPad += 1
- else: break
+ if c == __b58chars[0]:
+ nPad += 1
+ else:
+ break
result = chr(0)*nPad + result
if length is not None and len(result) != length:
hash = Hash(vchIn)
return b58encode(vchIn + hash[0:4])
+
def DecodeBase58Check(psz):
vchRet = b58decode(psz, None)
key = vchRet[0:-4]
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):
else:
return False
+
########### end pywallet functions #######################
+def random_string(length):
+ return ''.join(random.choice(string.ascii_uppercase + string.digits) for x in xrange(length))
+
+
+def timestr():
+ return time.strftime("[%d/%m/%Y-%H:%M:%S]")
+
+
+print_lock = threading.Lock()
+
+
+def print_log(*args):
+ with print_lock:
+ sys.stderr.write(timestr() + " " + " ".join(imap(str, args)) + "\n")
+ sys.stderr.flush()
git://git.novaco.in / electrum-server.git / blobdiff