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authorJeff Garzik <jgarzik@bitpay.com>2014-08-23 21:46:12 -0400
committerJeff Garzik <jgarzik@bitpay.com>2014-08-23 21:46:12 -0400
commit476eb7eb53f680494952865a823e5cf9459da2b9 (patch)
tree685aff1a7a7b18237343de12fd539e877a594bd6 /contrib/linearize/linearize-hashes.py
parent57fe1eaadc7c404b199239351e7bd80f48f3bcba (diff)
Update linearize scripts.
Break into two steps: * Generate hash list * Build data file(s) from local bitcoind blocks/ directory. This supports building one large bootstrap.dat, or multiple smaller blocks/blkNNNNN.dat files.
Diffstat (limited to 'contrib/linearize/linearize-hashes.py')
-rwxr-xr-xcontrib/linearize/linearize-hashes.py106
1 files changed, 106 insertions, 0 deletions
diff --git a/contrib/linearize/linearize-hashes.py b/contrib/linearize/linearize-hashes.py
new file mode 100755
index 0000000000..791b71bc33
--- /dev/null
+++ b/contrib/linearize/linearize-hashes.py
@@ -0,0 +1,106 @@
+#!/usr/bin/python
+#
+# linearize-hashes.py: List blocks in a linear, no-fork version of the chain.
+#
+# Copyright (c) 2013 The Bitcoin developers
+# Distributed under the MIT/X11 software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+#
+
+import json
+import struct
+import re
+import base64
+import httplib
+import sys
+
+settings = {}
+
+class BitcoinRPC:
+ OBJID = 1
+
+ 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)
+ def rpc(self, method, params=None):
+ self.OBJID += 1
+ obj = { 'version' : '1.1',
+ 'method' : method,
+ 'id' : self.OBJID }
+ if params is None:
+ obj['params'] = []
+ else:
+ obj['params'] = params
+ self.conn.request('POST', '/', json.dumps(obj),
+ { 'Authorization' : self.authhdr,
+ 'Content-type' : 'application/json' })
+
+ resp = self.conn.getresponse()
+ if resp is None:
+ print "JSON-RPC: no response"
+ return None
+
+ body = resp.read()
+ resp_obj = json.loads(body)
+ if resp_obj is None:
+ print "JSON-RPC: cannot JSON-decode body"
+ return None
+ if 'error' in resp_obj and resp_obj['error'] != None:
+ return resp_obj['error']
+ if 'result' not in resp_obj:
+ print "JSON-RPC: no result in object"
+ return None
+
+ return resp_obj['result']
+ def getblock(self, hash, verbose=True):
+ return self.rpc('getblock', [hash, verbose])
+ def getblockhash(self, index):
+ return self.rpc('getblockhash', [index])
+
+def get_block_hashes(settings):
+ rpc = BitcoinRPC(settings['host'], settings['port'],
+ settings['rpcuser'], settings['rpcpassword'])
+
+ for height in xrange(settings['min_height'], settings['max_height']+1):
+ hash = rpc.getblockhash(height)
+
+ print(hash)
+
+if __name__ == '__main__':
+ if len(sys.argv) != 2:
+ print "Usage: linearize-hashes.py CONFIG-FILE"
+ sys.exit(1)
+
+ f = open(sys.argv[1])
+ for line in f:
+ # skip comment lines
+ m = re.search('^\s*#', line)
+ if m:
+ continue
+
+ # parse key=value lines
+ m = re.search('^(\w+)\s*=\s*(\S.*)$', line)
+ if m is None:
+ continue
+ settings[m.group(1)] = m.group(2)
+ f.close()
+
+ if 'host' not in settings:
+ settings['host'] = '127.0.0.1'
+ if 'port' not in settings:
+ settings['port'] = 8332
+ if 'min_height' not in settings:
+ settings['min_height'] = 0
+ if 'max_height' not in settings:
+ settings['max_height'] = 313000
+ if 'rpcuser' not in settings or 'rpcpassword' not in settings:
+ print "Missing username and/or password in cfg file"
+ 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)
+