1 from __future__ import division
7 from twisted.internet import defer
8 from twisted.python import log
11 from p2pool import data as p2pool_data
12 from p2pool.util import jsonrpc, deferred_resource, variable
13 from p2pool.bitcoin import getwork
15 def get_memory(request):
16 if request.getHeader('X-Miner-Extensions') is not None and 'workidentifier' in request.getHeader('X-Miner-Extensions').split(' '):
18 if request.getHeader('X-Work-Identifier') is not None:
20 user_agent = request.getHeader('User-Agent')
21 user_agent2 = '' if user_agent is None else user_agent.lower()
22 if 'java' in user_agent2 or 'diablominer' in user_agent2: return 0 # hopefully diablominer...
23 if 'cpuminer' in user_agent2: return 0
24 if 'tenebrix miner' in user_agent2: return 0
25 if 'ufasoft' in user_agent2: return 0 # not confirmed
26 if 'cgminer' in user_agent2: return 0
27 if 'jansson' in user_agent2: return 0 # a version of optimized scrypt miner, once in Wuala. works fine here
28 if 'poclbm' in user_agent2: return 1
29 if 'phoenix' in user_agent2: return 2
30 print 'Unknown miner User-Agent:', repr(user_agent)
33 def get_username(request):
35 return base64.b64decode(request.getHeader('Authorization').split(' ', 1)[1]).split(':')[0]
40 return request.getClientIP(), request.getHeader('Authorization')
42 class LongPollingWorkerInterface(deferred_resource.DeferredResource):
43 def __init__(self, parent):
46 @defer.inlineCallbacks
47 def render_GET(self, request):
48 request.setHeader('Content-Type', 'application/json')
49 request.setHeader('X-Long-Polling', '/long-polling')
50 request.setHeader('X-Roll-NTime', 'expire=60')
53 request.write(json.dumps({
56 'result': (yield self.parent.getwork(request, long_poll=True)),
62 log.err(None, 'Squelched long polling error:')
63 raise jsonrpc.Error(-32099, u'Unknown error')
64 except jsonrpc.Error, e:
65 request.write(json.dumps({
71 render_POST = render_GET
73 class WorkerInterface(jsonrpc.Server):
74 def __init__(self, compute, response_callback, new_work_event=variable.Event()):
75 jsonrpc.Server.__init__(self)
77 self.compute = compute
78 self.response_callback = response_callback
79 self.new_work_event = new_work_event
81 self.worker_views = {}
83 self.putChild('long-polling', LongPollingWorkerInterface(self))
84 self.putChild('', self)
86 @defer.inlineCallbacks
87 def rpc_getwork(self, request, data=None):
88 request.setHeader('X-Long-Polling', '/long-polling')
89 request.setHeader('X-Roll-NTime', 'expire=60')
92 defer.returnValue(self.response_callback(getwork.decode_data(data), request))
94 defer.returnValue((yield self.getwork(request)))
96 @defer.inlineCallbacks
97 def getwork(self, request, long_poll=False):
98 request_id = get_id(request)
99 memory = get_memory(request)
101 id = random.randrange(10000)
103 print 'POLL %i START long_poll=%r user_agent=%r x-work-identifier=%r user=%r' % (id, long_poll, request.getHeader('User-Agent'), request.getHeader('X-Work-Identifier'), get_username(request))
105 if request_id not in self.worker_views:
106 self.worker_views[request_id] = variable.Variable((0, (None, None))) # times, (previous_block/-1, previous_block/-2)
108 thought_times, thought_work = self.worker_views[request_id].value
110 if long_poll and thought_times == self.new_work_event.times:
112 print 'POLL %i WAITING user=%r' % (id, get_username(request))
113 yield defer.DeferredList([self.new_work_event.get_deferred(), self.worker_views[request_id].changed.get_deferred()], fireOnOneCallback=True)
115 res, identifier = self.compute(request)
117 if thought_work[-1] is not None and self.new_work_event.times != thought_times and any(x is None or res.previous_block == x for x in thought_work[-memory or len(thought_work):]):
118 # clients won't believe the update
119 res = res.update(previous_block=random.randrange(2**256))
121 print 'POLL %i FAKED user=%r' % (id, get_username(request))
123 self.worker_views[request_id].set((self.new_work_event.times if long_poll else thought_times, (thought_work[-1], res.previous_block)))
125 print 'POLL %i END %s user=%r' % (id, p2pool_data.format_hash(identifier), get_username(request)) # XXX identifier is hack
127 defer.returnValue(res.getwork(identifier=str(identifier)))