10 return ''.join(random.choice(string.ascii_uppercase + string.digits) for x in range(N))
13 return time.strftime("[%d/%m/%Y-%H:%M:%S]")
16 print_lock = threading.Lock()
18 args = [str(item) for item in args]
20 sys.stderr.write(timestr() + " " + " ".join(args) + "\n")
28 self.lock = threading.Lock()
32 print_log( "Stopping Stratum" )
41 class Processor(threading.Thread):
44 threading.Thread.__init__(self)
46 self.dispatcher = None
47 self.queue = queue.Queue()
49 def process(self, request):
52 def add_request(self, request):
53 self.queue.put(request)
55 def push_response(self, response):
56 #print "response", response
57 self.dispatcher.request_dispatcher.push_response(response)
60 while not self.shared.stopped():
61 request = self.queue.get(10000000000)
65 traceback.print_exc(file=sys.stdout)
67 print_log( "processor terminating")
74 self.shared = Shared()
75 self.request_dispatcher = RequestDispatcher(self.shared)
76 self.request_dispatcher.start()
77 self.response_dispatcher = \
78 ResponseDispatcher(self.shared, self.request_dispatcher)
79 self.response_dispatcher.start()
81 def register(self, prefix, processor):
82 processor.dispatcher = self
83 processor.shared = self.shared
85 self.request_dispatcher.processors[prefix] = processor
89 class RequestDispatcher(threading.Thread):
91 def __init__(self, shared):
93 threading.Thread.__init__(self)
95 self.request_queue = queue.Queue()
96 self.response_queue = queue.Queue()
97 self.internal_ids = {}
99 self.lock = threading.Lock()
103 def push_response(self, item):
104 self.response_queue.put(item)
106 def pop_response(self):
107 return self.response_queue.get()
109 def push_request(self, session, item):
110 self.request_queue.put((session,item))
112 def pop_request(self):
113 return self.request_queue.get()
115 def get_session_by_address(self, address):
116 for x in self.sessions:
117 if x.address == address:
120 def get_session_id(self, internal_id):
122 return self.internal_ids.pop(internal_id)
124 def store_session_id(self, session, msgid):
126 self.internal_ids[self.internal_id] = session, msgid
128 self.internal_id += 1
132 if self.shared is None:
133 raise TypeError("self.shared not set in Processor")
134 while not self.shared.stopped():
135 session, request = self.pop_request()
137 self.do_dispatch(session, request)
139 traceback.print_exc(file=sys.stdout)
147 def do_dispatch(self, session, request):
148 """ dispatch request to the relevant processor """
150 method = request['method']
151 params = request.get('params',[])
152 suffix = method.split('.')[-1]
154 is_new = session.protocol_version >= 0.5
156 if is_new and method == 'blockchain.address.get_history':
157 method = 'blockchain.address.get_history2'
158 request['method'] = method
160 if suffix == 'subscribe':
161 if is_new and method == 'blockchain.address.subscribe':
162 method = 'blockchain.address.subscribe2'
163 request['method'] = method
165 session.subscribe_to_service(method, params)
167 # store session and id locally
168 request['id'] = self.store_session_id(session, request['id'])
170 prefix = request['method'].split('.')[0]
172 p = self.processors[prefix]
174 print_log( "error: no processor for", prefix)
177 p.add_request(request)
179 if method in ['server.version']:
180 session.version = params[0]
182 session.protocol_version = float(params[1])
186 #if session.protocol_version < 0.6:
187 # print_log("stopping session from old client", session.protocol_version)
190 def get_sessions(self):
195 def add_session(self, session):
197 self.sessions.append(session)
199 def collect_garbage(self):
200 # Deep copy entire sessions list and blank it
201 # This is done to minimise lock contention
203 sessions = self.sessions[:]
205 for session in sessions:
206 if not session.stopped():
207 # If session is still alive then re-add it back
208 # to our internal register
209 self.add_session(session)
215 self._stopped = False
216 self.lock = threading.Lock()
217 self.subscriptions = []
220 self.version = 'unknown'
221 self.protocol_version = 0.
222 self.time = time.time()
223 threading.Timer(2, self.info).start()
225 # Debugging method. Doesn't need to be threadsafe.
227 for sub in self.subscriptions:
230 if method == 'blockchain.address.subscribe':
236 if self.subscriptions:
237 print_log( "%4s"%self.name, "%14s"%self.address, "%35s"%addr, "%3d"%len(self.subscriptions), self.version )
243 def subscribe_to_service(self, method, params):
244 subdesc = self.build_subdesc(method, params)
246 if subdesc is not None:
247 self.subscriptions.append(subdesc)
249 # subdesc = A subscription description
251 def build_subdesc(method, params):
252 if method == "blockchain.numblocks.subscribe":
254 elif method == "blockchain.headers.subscribe":
256 elif method in ["blockchain.address.subscribe", "blockchain.address.subscribe2"]:
260 return method, params[0]
264 def contains_subscription(self, subdesc):
266 return subdesc in self.subscriptions
269 class ResponseDispatcher(threading.Thread):
271 def __init__(self, shared, processor):
273 self.processor = processor
274 threading.Thread.__init__(self)
278 while not self.shared.stopped():
282 response = self.processor.pop_response()
283 #print "pop response", response
284 internal_id = response.get('id')
285 method = response.get('method')
286 params = response.get('params')
289 if internal_id is None: # and method is not None and params is not None:
290 self.notification(method, params, response)
292 elif internal_id is not None: # and method is None and params is None:
293 self.send_response(internal_id, response)
295 print_log( "no method", response)
297 def notification(self, method, params, response):
298 subdesc = Session.build_subdesc(method, params)
299 for session in self.processor.sessions:
300 if session.stopped():
302 if session.contains_subscription(subdesc):
303 if response.get('method') == "blockchain.address.subscribe2":
304 response['method'] = "blockchain.address.subscribe"
305 session.send_response(response)
307 def send_response(self, internal_id, response):
308 session, message_id = self.processor.get_session_id(internal_id)
310 response['id'] = message_id
311 session.send_response(response)
313 print_log( "send_response: no session", message_id, internal_id, response )