Update app.py

app.py

@@ -1,262 +1,87 @@
-#!/usr/bin/python
-#
-# Copyright 2011 Jeff Garzik
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; see the file COPYING.  If not, write to
-# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-#
+#A stratum compatible miniminer
+#based in the documentation
+#https://slushpool.com/help/#!/manual/stratum-protocol
+#2017-2019 Martin Nadal https://martinnadal.eu
 
-import time
+import socket
 import json
-import pprint
 import hashlib
-import struct
-import re
-import base64
-import httplib
-import sys
-from multiprocessing import Process
-
-ERR_SLEEP = 15
-MAX_NONCE = 1000000L
-
-settings = {}
-pp = pprint.PrettyPrinter(indent=4)
-
-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 getblockcount(self):
-		return self.rpc('getblockcount')
-	def getwork(self, data=None):
-		return self.rpc('getwork', data)
-
-def uint32(x):
-	return x & 0xffffffffL
-
-def bytereverse(x):
-	return uint32(( ((x) << 24) | (((x) << 8) & 0x00ff0000) |
-			(((x) >> 8) & 0x0000ff00) | ((x) >> 24) ))
-
-def bufreverse(in_buf):
-	out_words = []
-	for i in range(0, len(in_buf), 4):
-		word = struct.unpack('@I', in_buf[i:i+4])[0]
-		out_words.append(struct.pack('@I', bytereverse(word)))
-	return ''.join(out_words)
-
-def wordreverse(in_buf):
-	out_words = []
-	for i in range(0, len(in_buf), 4):
-		out_words.append(in_buf[i:i+4])
-	out_words.reverse()
-	return ''.join(out_words)
-
-class Miner:
-	def __init__(self, id):
-		self.id = id
-		self.max_nonce = MAX_NONCE
-
-	def work(self, datastr, targetstr):
-		# decode work data hex string to binary
-		static_data = datastr.decode('hex')
-		static_data = bufreverse(static_data)
-
-		# the first 76b of 80b do not change
-		blk_hdr = static_data[:76]
-
-		# decode 256-bit target value
-		targetbin = targetstr.decode('hex')
-		targetbin = targetbin[::-1]	# byte-swap and dword-swap
-		targetbin_str = targetbin.encode('hex')
-		target = long(targetbin_str, 16)
-
-		# pre-hash first 76b of block header
-		static_hash = hashlib.sha256()
-		static_hash.update(blk_hdr)
-
-		for nonce in xrange(self.max_nonce):
-
-			# encode 32-bit nonce value
-			nonce_bin = struct.pack("<I", nonce)
-
-			# hash final 4b, the nonce value
-			hash1_o = static_hash.copy()
-			hash1_o.update(nonce_bin)
-			hash1 = hash1_o.digest()
-
-			# sha256 hash of sha256 hash
-			hash_o = hashlib.sha256()
-			hash_o.update(hash1)
-			hash = hash_o.digest()
-
-			# quick test for winning solution: high 32 bits zero?
-			if hash[-4:] != '\0\0\0\0':
-				continue
-
-			# convert binary hash to 256-bit Python long
-			hash = bufreverse(hash)
-			hash = wordreverse(hash)
+import binascii
+from pprint import pprint
+import time
+import random
 
-			hash_str = hash.encode('hex')
-			l = long(hash_str, 16)
+address = '1GvSP13YjQAu9VAa8J1Hvbc4n3N8kUE3Ch'
+nonce   = hex(random.randint(0,2**32-1))[2:].zfill(8)
 
-			# proof-of-work test:  hash < target
-			if l < target:
-				print time.asctime(), "PROOF-OF-WORK found: %064x" % (l,)
-				return (nonce + 1, nonce_bin)
-			else:
-				print time.asctime(), "PROOF-OF-WORK false positive %064x" % (l,)
-#				return (nonce + 1, nonce_bin)
+host    = 'solo.ckpool.org'
+port    = 3333
 
-		return (nonce + 1, None)
+print("address:{} nonce:{}".format(address,nonce))
+print("host:{} port:{}".format(host,port))
 
-	def submit_work(self, rpc, original_data, nonce_bin):
-		nonce_bin = bufreverse(nonce_bin)
-		nonce = nonce_bin.encode('hex')
-		solution = original_data[:152] + nonce + original_data[160:256]
-		param_arr = [ solution ]
-		result = rpc.getwork(param_arr)
-		print time.asctime(), "--> Upstream RPC result:", result
+sock    = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+sock.connect((host,port))
 
-	def iterate(self, rpc):
-		work = rpc.getwork()
-		if work is None:
-			time.sleep(ERR_SLEEP)
-			return
-		if 'data' not in work or 'target' not in work:
-			time.sleep(ERR_SLEEP)
-			return
+#server connection
+sock.sendall(b'{"id": 1, "method": "mining.subscribe", "params": []}\n')
+lines = sock.recv(1024).decode().split('\n')
+response = json.loads(lines[0])
+sub_details,extranonce1,extranonce2_size = response['result']
 
-		time_start = time.time()
+#authorize workers
+sock.sendall(b'{"params": ["'+address.encode()+b'", "password"], "id": 2, "method": "mining.authorize"}\n')
 
-		(hashes_done, nonce_bin) = self.work(work['data'],
-						     work['target'])
+#we read until 'mining.notify' is reached
+response = b''
+while response.count(b'\n') < 4 and not(b'mining.notify' in response):
+    response += sock.recv(1024)
 
-		time_end = time.time()
-		time_diff = time_end - time_start
 
-		self.max_nonce = long(
-			(hashes_done * settings['scantime']) / time_diff)
-		if self.max_nonce > 0xfffffffaL:
-			self.max_nonce = 0xfffffffaL
+#get rid of empty lines
+responses = [json.loads(res) for res in response.decode().split('\n') if len(res.strip())>0 and 'mining.notify' in res]
+pprint(responses)
 
-		if settings['hashmeter']:
-			print "HashMeter(%d): %d hashes, %.2f Khash/sec" % (
-			      self.id, hashes_done,
-			      (hashes_done / 1000.0) / time_diff)
+job_id,prevhash,coinb1,coinb2,merkle_branch,version,nbits,ntime,clean_jobs \
+    = responses[0]['params']
 
-		if nonce_bin is not None:
-			self.submit_work(rpc, work['data'], nonce_bin)
+#target https://bitcoin.stackexchange.com/a/36228/44319
+target = (nbits[2:]+'00'*(int(nbits[:2],16) - 3)).zfill(64)
+print('nbits:{} target:{}\n'.format(nbits,target))
 
-	def loop(self):
-		rpc = BitcoinRPC(settings['host'], settings['port'],
-				 settings['rpcuser'], settings['rpcpass'])
-		if rpc is None:
-			return
+extranonce2 = '00'*extranonce2_size
 
-		while True:
-			self.iterate(rpc)
+coinbase = coinb1 + extranonce1 + extranonce2 + coinb2
+coinbase_hash_bin = hashlib.sha256(hashlib.sha256(binascii.unhexlify(coinbase)).digest()).digest()
 
-def miner_thread(id):
-	miner = Miner(id)
-	miner.loop()
+print('coinbase:\n{}\n\ncoinbase hash:{}\n'.format(coinbase,binascii.hexlify(coinbase_hash_bin)))
+merkle_root = coinbase_hash_bin
+for h in merkle_branch:
+    merkle_root = hashlib.sha256(hashlib.sha256(merkle_root + binascii.unhexlify(h)).digest()).digest()
 
-if __name__ == '__main__':
-	if len(sys.argv) != 2:
-		print "Usage: pyminer.py CONFIG-FILE"
-		sys.exit(1)
+merkle_root = binascii.hexlify(merkle_root).decode()
 
-	f = open(sys.argv[1])
-	for line in f:
-		# skip comment lines
-		m = re.search('^\s*#', line)
-		if m:
-			continue
+#little endian
+merkle_root = ''.join([merkle_root[i]+merkle_root[i+1] for i in range(0,len(merkle_root),2)][::-1])
 
-		# 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()
+print('merkle_root:{}\n'.format(merkle_root))
 
-	if 'host' not in settings:
-		settings['host'] = '127.0.0.1'
-	if 'port' not in settings:
-		settings['port'] = 8332
-	if 'threads' not in settings:
-		settings['threads'] = 1
-	if 'hashmeter' not in settings:
-		settings['hashmeter'] = 0
-	if 'scantime' not in settings:
-		settings['scantime'] = 30L
-	if 'rpcuser' not in settings or 'rpcpass' not in settings:
-		print "Missing username and/or password in cfg file"
-		sys.exit(1)
+blockheader = version + prevhash + merkle_root + nbits + ntime + nonce +\
+    '000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000'
 
-	settings['port'] = int(settings['port'])
-	settings['threads'] = int(settings['threads'])
-	settings['hashmeter'] = int(settings['hashmeter'])
-	settings['scantime'] = long(settings['scantime'])
+print('blockheader:\n{}\n'.format(blockheader))
 
-	thr_list = []
-	for thr_id in range(settings['threads']):
-		p = Process(target=miner_thread, args=(thr_id,))
-		p.start()
-		thr_list.append(p)
-		time.sleep(1)			# stagger threads
+hash = hashlib.sha256(hashlib.sha256(binascii.unhexlify(blockheader)).digest()).digest()
+hash = binascii.hexlify(hash).decode()
+print('hash: {}'.format(hash))
 
-	print settings['threads'], "mining threads started"
+if hash < target :
+    print('success!!')
+    payload = '{"params": ["'+address+'", "'+job_id+'", "'+extranonce2 \
+        +'", "'+ntime+'", "'+nonce+'"], "id": 1, "method": "mining.submit"}\n'
+    sock.sendall(payload)
+    print(sock.recv(1024))
+else:
+    print('failed mine, hash is greater than target')
 
-	print time.asctime(), "Miner Starts - %s:%s" % (settings['host'], settings['port'])
-	try:
-		for thr_proc in thr_list:
-			thr_proc.join()
-	except KeyboardInterrupt:
-		pass
-	print time.asctime(), "Miner Stops - %s:%s" % (settings['host'], settings['port'])
+sock.close()