#!/usr/bin/env python # The MIT License (MIT) # # Copyright (c) 2017 # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in all # copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE # SOFTWARE. import autobahn.twisted.websocket import autobahn.twisted.resource import json import os import socket import sys import time import twisted.internet.defer import twisted.internet.protocol import twisted.internet.reactor import twisted.protocols.basic import twisted.web.resource import twisted.web.server import twisted.web.static from twisted.internet import ssl from twisted.python import log def toJson(obj): return json.dumps(obj).encode("utf-8") def fromJson(str): return json.loads(str.decode('utf-8')) class Container: def __init__(self): self.rpcId = 0 self.workerId = None self.hashes = 0 self.to_client = twisted.internet.defer.DeferredQueue() self.to_server = twisted.internet.defer.DeferredQueue() def getNextRpcId(self): self.rpcId += 1 return self.rpcId def incAndGetHashes(self): self.hashes += 1 return self.hashes class Root(twisted.web.static.File): def render(self, request): request.setHeader('Access-Control-Allow-Origin','*') return super(Root, self).render(request) def directoryListing(self): return twisted.web.resource.ForbiddenResource() class ProxyClient(twisted.protocols.basic.LineOnlyReceiver): delimiter = b'\n' def connectionMade(self): log.msg('Server connected') self.factory.di.to_server.get().addCallback(self.dataEnqueued) try: self.transport.getHandle().setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1) self.transport.getHandle().setsockopt(socket.SOL_TCP, socket.TCP_KEEPIDLE, 30) self.transport.getHandle().setsockopt(socket.SOL_TCP, socket.TCP_KEEPINTVL, 1) self.transport.getHandle().setsockopt(socket.SOL_TCP, socket.TCP_KEEPCNT, 5) except: pass def dataEnqueued(self, data): if data is None: log.msg('Client disconnecting from server') self.transport.loseConnection() else: log.msg('Queue -> Server: %s' % str(data)) self.transport.write(data) if not data.endswith(self.delimiter): self.transport.write(self.delimiter) self.factory.di.to_server.get().addCallback(self.dataEnqueued) def lineReceived(self, line): log.msg('Server -> Queue: %s' % line) data = fromJson(line) if data.get("id") == 1: self.factory.di.workerId = data.get("result").get("id") self.factory.di.to_client.put(b'{"type":"authed","params":{"token":"","hashes":0}}') if data.get('result', {}).get('job'): self.factory.di.to_client.put(toJson({'type':'job','params':data['result']['job']})) elif data.get('method') == 'job': self.factory.di.to_client.put(toJson({'type':'job','params':data['params']})) elif data.get('result', {}).get('status') == 'OK': hashes = self.factory.di.incAndGetHashes() self.factory.di.to_client.put(toJson({'type':'hash_accepted','params':{'hashes':hashes}})) def connectionLost(self, why): log.msg('Server disconnected (%s)' % str(why)) self.factory.di.to_client.put(None) class ProxyClientFactory(twisted.internet.protocol.ClientFactory): protocol = ProxyClient def __init__(self, container): self.di = container def clientConnectionFailed(self, connector, why): log.msg('Server connection failed (%s)' % str(why)) self.di.to_client.put(None) class ProxyServer(autobahn.twisted.websocket.WebSocketServerProtocol): def onConnect(self, request): log.msg('Client connected (%s)' % str(request)) details["clients"] +=1 def onOpen(self): log.msg('WebSocket is open') self.di = Container() self.di.to_client.get().addCallback(self.onQueue) factory = ProxyClientFactory(self.di) twisted.internet.reactor.connectTCP(self.targetHost, self.targetPort, factory) def onQueue(self, data): if data is None: log.msg('Server disconnecting from client') self.sendClose() else: log.msg('Queue -> Client: %s' % str(data)) self.sendMessage(data, False) mData = fromJson(data) #{"params": {"hashes": 1}, "type": "hash_accepted"} if mData["type"] == "hash_accepted": details["total_hashes"] += 1 self.di.to_client.get().addCallback(self.onQueue) def onMessage(self, data, isBinary): log.msg('Client -> Queue (%s): %s' % ('binary' if isBinary else 'text', str(data))) data = fromJson(data) if data.get('type') == 'auth': login = data['params']['site_key'] if data['params'].get('user'): login = login + "." + data['params']['user'] self.di.to_server.put(toJson({'method':'login','params':{'login':login,'pass':self.authPass},'id':self.di.getNextRpcId()})) if data.get('type') == 'submit': data['params']['id'] = self.di.workerId self.di.to_server.put(toJson({'method':'submit','params':data['params'],'id':self.di.getNextRpcId()})) def onClose(self, wasClean, code, reason): if hasattr(self, 'di'): log.msg('Client disconnected (%s, %s, %s)' % (str(wasClean), str(code), str(reason))) details["clients"] -= 1 self.di.to_server.put(None) class SimpleStats(twisted.web.resource.Resource): isLeaf=True def __init__(self, details, passwd): self.details = details self.boot_time = time.time() self.passwd = passwd def render_GET(self, request): passwd = request.args.get("password", None) if (passwd and passwd[0] == self.passwd) or not self.passwd: self.details["uptime"] = time.time() - self.boot_time return toJson(details) request.setResponseCode(403) return toJson({"error": "unauthorized"}) if __name__ == "__main__": details = {"total_hashes": 0, "clients": 0} from argparse import ArgumentParser usage = "%prog <stratum tcp host> <stratum tcp port> [options]" parser = ArgumentParser(description=usage) parser.add_argument("pool_host", metavar="host", help="stratum tcp host") parser.add_argument("pool_port", metavar="stratum_port", help="stratum tcp port", type=int, choices=range(1,65535)) parser.add_argument("--websocket_port", metavar="PORT", help="port to listen for websocket clients", type=int, choices=range(1,65535), default=8892) parser.add_argument("--ssl", help="Enables SSL for Websocket clients. (privatekey:certificate[:chain])", metavar="CERTIFICATES", dest="ssl") parser.add_argument("--pool_pass", help="stratum auth password (Default: x)", default="x") parser.add_argument("--password", help="Password for the stats page (Default: No password)", default=None) arguments = vars(parser.parse_args()) log.startLogging(sys.stdout) ProxyServer.targetHost = arguments["pool_host"] ProxyServer.targetPort = arguments["pool_port"] ProxyServer.authPass = arguments["pool_pass"] ProxyServer.details = details ws = autobahn.twisted.websocket.WebSocketServerFactory() ws.protocol = ProxyServer root = Root('./static') root.putChild(b"proxy", autobahn.twisted.resource.WebSocketResource(ws)) root.putChild(b"stats", SimpleStats(details, arguments["password"])) requestFactory = twisted.web.server.Site(root) if arguments["ssl"]: import OpenSSL from OpenSSL import crypto try: splitted = arguments["ssl"].split(":") key = crypto.load_privatekey(crypto.FILETYPE_PEM, open(splitted[0], 'rt').read()) cert = crypto.load_certificate(crypto.FILETYPE_PEM, open(splitted[1], 'rt').read()) chain = None if len(splitted) == 3: chain = [crypto.load_certificate(crypto.FILETYPE_PEM, open(splitted[2], 'rt').read())] contextFactory = ssl.CertificateOptions(privateKey=key, certificate=cert, extraCertChain=chain) twisted.internet.reactor.listenSSL(arguments["websocket_port"], requestFactory, contextFactory) except (OpenSSL.SSL.Error, IOError): print("Invalid privatekey:certificate[:chain]") sys.exit(1) else: twisted.internet.reactor.listenTCP(arguments["websocket_port"], requestFactory) twisted.internet.reactor.run()