diff options
Diffstat (limited to 'contrib/linearize/linearize-hashes.py')
| -rwxr-xr-x | contrib/linearize/linearize-hashes.py | 68 |
1 files changed, 56 insertions, 12 deletions
diff --git a/contrib/linearize/linearize-hashes.py b/contrib/linearize/linearize-hashes.py index 854cf1f9ee..db8eb7021e 100755 --- a/contrib/linearize/linearize-hashes.py +++ b/contrib/linearize/linearize-hashes.py @@ -1,39 +1,55 @@ -#!/usr/bin/python +#!/usr/bin/env python3 # # linearize-hashes.py: List blocks in a linear, no-fork version of the chain. # -# Copyright (c) 2013-2014 The Bitcoin Core developers +# Copyright (c) 2013-2016 The Bitcoin Core developers # Distributed under the MIT software license, see the accompanying # file COPYING or http://www.opensource.org/licenses/mit-license.php. # from __future__ import print_function +try: # Python 3 + import http.client as httplib +except ImportError: # Python 2 + import httplib import json -import struct import re import base64 -import httplib import sys +import os +import os.path settings = {} +##### Switch endian-ness ##### +def hex_switchEndian(s): + """ Switches the endianness of a hex string (in pairs of hex chars) """ + pairList = [s[i:i+2].encode() for i in range(0, len(s), 2)] + return b''.join(pairList[::-1]).decode() + class BitcoinRPC: def __init__(self, host, port, username, password): authpair = "%s:%s" % (username, password) - self.authhdr = "Basic %s" % (base64.b64encode(authpair)) - self.conn = httplib.HTTPConnection(host, port, False, 30) + authpair = authpair.encode('utf-8') + self.authhdr = b"Basic " + base64.b64encode(authpair) + self.conn = httplib.HTTPConnection(host, port=port, timeout=30) def execute(self, obj): - self.conn.request('POST', '/', json.dumps(obj), - { 'Authorization' : self.authhdr, - 'Content-type' : 'application/json' }) + try: + self.conn.request('POST', '/', json.dumps(obj), + { 'Authorization' : self.authhdr, + 'Content-type' : 'application/json' }) + except ConnectionRefusedError: + print('RPC connection refused. Check RPC settings and the server status.', + file=sys.stderr) + return None resp = self.conn.getresponse() if resp is None: print("JSON-RPC: no response", file=sys.stderr) return None - body = resp.read() + body = resp.read().decode('utf-8') resp_obj = json.loads(body) return resp_obj @@ -64,16 +80,29 @@ def get_block_hashes(settings, max_blocks_per_call=10000): batch.append(rpc.build_request(x, 'getblockhash', [height + x])) reply = rpc.execute(batch) + if reply is None: + print('Cannot continue. Program will halt.') + return None for x,resp_obj in enumerate(reply): if rpc.response_is_error(resp_obj): print('JSON-RPC: error at height', height+x, ': ', resp_obj['error'], file=sys.stderr) exit(1) assert(resp_obj['id'] == x) # assume replies are in-sequence + if settings['rev_hash_bytes'] == 'true': + resp_obj['result'] = hex_switchEndian(resp_obj['result']) print(resp_obj['result']) height += num_blocks +def get_rpc_cookie(): + # Open the cookie file + with open(os.path.join(os.path.expanduser(settings['datadir']), '.cookie'), 'r') as f: + combined = f.readline() + combined_split = combined.split(":") + settings['rpcuser'] = combined_split[0] + settings['rpcpassword'] = combined_split[1] + if __name__ == '__main__': if len(sys.argv) != 2: print("Usage: linearize-hashes.py CONFIG-FILE") @@ -101,13 +130,28 @@ if __name__ == '__main__': settings['min_height'] = 0 if 'max_height' not in settings: settings['max_height'] = 313000 + if 'rev_hash_bytes' not in settings: + settings['rev_hash_bytes'] = 'false' + + use_userpass = True + use_datadir = False if 'rpcuser' not in settings or 'rpcpassword' not in settings: - print("Missing username and/or password in cfg file", file=stderr) + use_userpass = False + if 'datadir' in settings and not use_userpass: + use_datadir = True + if not use_userpass and not use_datadir: + print("Missing datadir or username and/or password in cfg file", file=stderr) sys.exit(1) settings['port'] = int(settings['port']) settings['min_height'] = int(settings['min_height']) settings['max_height'] = int(settings['max_height']) - get_block_hashes(settings) + # Force hash byte format setting to be lowercase to make comparisons easier. + settings['rev_hash_bytes'] = settings['rev_hash_bytes'].lower() + # Get the rpc user and pass from the cookie if the datadir is set + if use_datadir: + get_rpc_cookie() + + get_block_hashes(settings) |