stratum-ss-miner.py

#  Copyright (c) 2019, The Monero Project
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#  this list of conditions and the following disclaimer.
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import socket
import select
import binascii
import pycryptonight
import pyrx
import struct
import json
import sys
import os
import time
import requests
from multiprocessing import Process, Queue


pool_host = 'localhost'
pool_port = 4242
pool_pass = 'xx'
wallet_address = '9xBuE3RDR6yGYhsgtNK92ZYqYYDUQRxSABxbw6CTGnXnCvnmuXq2xanDGrJMoDMZGkZgb4Bbx5cvxhfAufYdujvVEwwSSq3'
rpc_url = 'http://localhost:28081/json_rpc'


def main():
    pool_ip = socket.gethostbyname(pool_host)
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.connect((pool_ip, pool_port))

    q = Queue()
    proc = Process(target=worker, args=(q, s))
    proc.daemon = True
    proc.start()

    login = {
        'method': 'login',
        'params': {
            'login': wallet_address,
            'pass': pool_pass,
            'rigid': '',
            'agent': 'stratum-miner-py/0.1',
            'mode': 'self-select'
        },
        'id':1
    }
    print('Logging into pool: {}:{}'.format(pool_host, pool_port))
    s.sendall(str(json.dumps(login)+'\n').encode('utf-8'))

    try:
        while 1:
            line = s.makefile().readline()
            r = json.loads(line)
            error = r.get('error')
            result = r.get('result')
            method = r.get('method')
            params = r.get('params')
            if error:
                print('Error: {}'.format(error))
                sys.exit(-1)
            if result and result.get('status'):
                print('Status: {}'.format(result.get('status')))
            if result and result.get('job'):
                client_id = result.get('id')
                print('Login ID: {}'.format(client_id))
                job = result.get('job')
                job['client_id'] = client_id
                job['blob'], job['height'], job['seed_hash'] = get_set_template(job, client_id, s)
                q.put(job)
            elif method and method == 'job' and len(client_id):
                job = params
                job['blob'], job['height'], job['seed_hash'] = get_set_template(job, client_id, s)
                q.put(job)
    except KeyboardInterrupt:
        print('{}Exiting'.format(os.linesep))
        proc.terminate()
        s.close()
        sys.exit(0)


def pack_nonce(blob, nonce):
    b = binascii.unhexlify(blob)
    bin = struct.pack('39B', *bytearray(b[:39]))
    bin += struct.pack('I', nonce)
    bin += struct.pack('{}B'.format(len(b)-43), *bytearray(b[43:]))
    return bin

def get_set_template(job, cid, s):
    extra = job.get('extra_nonce')
    wallet = job.get('pool_wallet')
    job_id = job.get('job_id')
    seed_hash = job.get('seed_hash')
    payload = {
        'jsonrpc':'2.0',
        'id':'0',
        'method':'get_block_template',
        'params': {
            'wallet_address': wallet,
            'extra_nonce': extra
        }
    }
    print('Fetching block template from daemon')
    req = requests.post(rpc_url, json=payload)
    result = req.json().get('result')
    if not result:
        print(req.json())
    blob = result.get('blocktemplate_blob')
    payload = {
        'method':'block_template',
        'params': {
            'id': cid,
            'job_id': job_id,
            'blob': result.get('blocktemplate_blob'),
            'height': result.get('height'),
            'difficulty': result.get('difficulty'),
            'prev_hash': result.get('prev_hash'),
            'seed_hash': result.get('seed_hash'),
            'next_seed_hash': result.get('next_seed_hash')
        },
        'id':1
    }
    print('Sending block template to pool')
    s.sendall(str(json.dumps(payload)+'\n').encode('utf-8'))
    select.select([s], [], [], 15)
    return result.get('blockhashing_blob'), result.get('height'), result.get('seed_hash')

def worker(q, s):
    started = time.time()
    hash_count = 0

    while 1:
        job = q.get()
        if job.get('client_id'):
            client_id = job.get('client_id')
        target = job.get('target')
        job_id = job.get('job_id')
        height = job.get('height')
        blob = job.get('blob')
        block_major = int(blob[:2], 16)
        cnv = 0
        if block_major >= 7:
            cnv = block_major - 6
        if cnv > 5:
            seed_hash = binascii.unhexlify(job.get('seed_hash'))
            print('New job with target: {}, RandomX, height: {}'.format(target, height))
        else:
            print('New job with target: {}, CNv{}, height: {}'.format(target, cnv, height))
        target = struct.unpack('I', binascii.unhexlify(target))[0]
        if target >> 32 == 0:
            target = int(0xFFFFFFFFFFFFFFFF / int(0xFFFFFFFF / target))
        nonce = 1

        while 1:
            bin = pack_nonce(blob, nonce)
            if cnv > 5:
                hash = pyrx.get_rx_hash(bin, seed_hash, height)
            else:
                hash = pycryptonight.cn_slow_hash(bin, cnv, 0, height)
            hash_count += 1
            sys.stdout.write('.')
            sys.stdout.flush()
            hex_hash = binascii.hexlify(hash).decode()
            r64 = struct.unpack('Q', hash[24:])[0]
            if r64 < target:
                elapsed = time.time() - started
                hr = int(hash_count / elapsed)
                print('{}Hashrate: {} H/s'.format(os.linesep, hr))
                submit = {
                    'method':'submit',
                    'params': {
                        'id': client_id,
                        'job_id': job_id,
                        'nonce': binascii.hexlify(struct.pack('<I', nonce)).decode(),
                        'result': hex_hash
                    },
                    'id':1
                }
                print('Submitting hash: {}'.format(hex_hash))
                s.sendall(str(json.dumps(submit)+'\n').encode('utf-8'))
                select.select([s], [], [], 3)
                if not q.empty():
                    break
            nonce += 1

if __name__ == '__main__':
    main()