import threading, time, Queue, os, sys, shutil
-from util import user_dir, appdata_dir, print_error, hex_to_int
+from util import user_dir, appdata_dir, print_error
from bitcoin import *
try:
assert prev_hash == header.get('prev_block_hash')
assert bits == header.get('bits')
- assert hex_to_int(_hash) < target
+ assert int('0x'+_hash,16) < target
except Exception:
return False
_hash = self.hash_header(header)
assert previous_hash == header.get('prev_block_hash')
assert bits == header.get('bits')
- assert hex_to_int(_hash) < target
+ assert int('0x'+_hash,16) < target
previous_header = header
previous_hash = _hash
self.save_chunk(index, data)
print_error("validated chunk %d"%height)
-
- def verify_header(self, header):
- # add header to the blockchain file
- # if there is a reorg, push it in a stack
-
- height = header.get('block_height')
-
- prev_header = self.read_header(height -1)
- if not prev_header:
- # return False to request previous header
- return False
-
- prev_hash = self.hash_header(prev_header)
- bits, target = self.get_target(height/2016)
- _hash = self.hash_header(header)
- try:
- assert prev_hash == header.get('prev_block_hash')
- assert bits == header.get('bits')
- assert hex_to_int(_hash) < target
- except Exception:
- # this can be caused by a reorg.
- print_error("verify header failed"+ repr(header))
- verifier.undo_verifications()
-
- # return False to request previous header.
- return False
-
- self.save_header(header)
- print_error("verify header:", _hash, height)
- return True
def header_to_string(self, res):
def header_from_string(self, s):
+ hex_to_int = lambda s: int('0x' + s[::-1].encode('hex'), 16)
h = {}
h['version'] = hex_to_int(s[0:4])
h['prev_block_hash'] = hash_encode(s[4:36])
c = c[2:]
i -= 1
- c = hex_to_int(c[0:6])
+ c = int('0x'+c[0:6],16)
if c > 0x800000:
c /= 256
i += 1