# License along with this program. If not, see
# <http://www.gnu.org/licenses/agpl.html>.
-"""
-Todo:
- * server should check and return bitcoind status..
- * improve txpoint sorting
- * command to check cache
-
- mempool transactions do not need to be added to the database; it slows it down
-"""
-
-import abe_backend
-
-
-
-
-import time, json, socket, operator, thread, ast, sys, re, traceback
+import time, sys, traceback
import ConfigParser
-from json import dumps, loads
-import urllib
-import threading
-
-config = ConfigParser.ConfigParser()
-# set some defaults, which will be overwritten by the config file
-config.add_section('server')
-config.set('server','banner', 'Welcome to Electrum!')
-config.set('server', 'host', 'localhost')
-config.set('server', 'port', '50000')
-config.set('server', 'password', '')
-config.set('server', 'irc', 'yes')
-config.set('server', 'ircname', 'Electrum server')
-config.add_section('database')
-config.set('database', 'type', 'psycopg2')
-config.set('database', 'database', 'abe')
-
-try:
- f = open('/etc/electrum.conf','r')
- config.readfp(f)
- f.close()
-except:
- print "Could not read electrum.conf. I will use the default values."
-
-try:
- f = open('/etc/electrum.banner','r')
- config.set('server','banner', f.read())
- f.close()
-except:
- pass
-
-
-password = config.get('server','password')
-stopping = False
-sessions = {}
-
-
-
-def random_string(N):
- import random, string
- return ''.join(random.choice(string.ascii_uppercase + string.digits) for x in range(N))
-
-
-
-def modified_addresses(a_session):
- #t1 = time.time()
- import copy
- session = copy.deepcopy(a_session)
- addresses = session['addresses']
- session['last_time'] = time.time()
- ret = {}
- k = 0
- for addr in addresses:
- status = store.get_status( addr )
- msg_id, last_status = addresses.get( addr )
- if last_status != status:
- addresses[addr] = msg_id, status
- ret[addr] = status
-
- #t2 = time.time() - t1
- #if t2 > 10: print "high load:", session_id, "%d/%d"%(k,len(addresses)), t2
- return ret, addresses
+import logging
+logging.basicConfig()
-def poll_session(session_id):
- # native
- session = sessions.get(session_id)
- if session is None:
- print time.asctime(), "session not found", session_id
- return -1, {}
- else:
- sessions[session_id]['last_time'] = time.time()
- ret, addresses = modified_addresses(session)
- if ret: sessions[session_id]['addresses'] = addresses
- return repr( (store.block_number,ret))
-
-
-def add_address_to_session(session_id, address):
- status = store.get_status(address)
- sessions[session_id]['addresses'][address] = ("", status)
- sessions[session_id]['last_time'] = time.time()
- return status
-
-
-def new_session(version, addresses):
- session_id = random_string(10)
- sessions[session_id] = { 'addresses':{}, 'version':version }
- for a in addresses:
- sessions[session_id]['addresses'][a] = ('','')
- out = repr( (session_id, config.get('server','banner').replace('\\n','\n') ) )
- sessions[session_id]['last_time'] = time.time()
- return out
-
-
-def update_session(session_id,addresses):
- """deprecated in 0.42, wad replaced by add_address_to_session"""
- sessions[session_id]['addresses'] = {}
- for a in addresses:
- sessions[session_id]['addresses'][a] = ''
- sessions[session_id]['last_time'] = time.time()
- return 'ok'
-
-
-def native_server_thread():
- s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
- s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
- s.bind((config.get('server','host'), config.getint('server','port')))
- s.listen(1)
- while not stopping:
- conn, addr = s.accept()
- try:
- thread.start_new_thread(native_client_thread, (addr, conn,))
- except:
- # can't start new thread if there is no memory..
- traceback.print_exc(file=sys.stdout)
-
-
-def native_client_thread(ipaddr,conn):
- #print "client thread", ipaddr
+def attempt_read_config(config, filename):
try:
- ipaddr = ipaddr[0]
- msg = ''
- while 1:
- d = conn.recv(1024)
- msg += d
- if not d:
- break
- if '#' in msg:
- msg = msg.split('#', 1)[0]
- break
- try:
- cmd, data = ast.literal_eval(msg)
- except:
- print "syntax error", repr(msg), ipaddr
- conn.close()
- return
-
- out = do_command(cmd, data, ipaddr)
- if out:
- #print ipaddr, cmd, len(out)
- try:
- conn.send(out)
- except:
- print "error, could not send"
-
- finally:
- conn.close()
-
-
-def timestr():
- return time.strftime("[%d/%m/%Y-%H:%M:%S]")
-
-# used by the native handler
-def do_command(cmd, data, ipaddr):
-
- if cmd=='b':
- out = "%d"%block_number
-
- elif cmd in ['session','new_session']:
- try:
- if cmd == 'session':
- addresses = ast.literal_eval(data)
- version = "old"
- else:
- version, addresses = ast.literal_eval(data)
- if version[0]=="0": version = "v" + version
- except:
- print "error", data
- return None
- print timestr(), "new session", ipaddr, addresses[0] if addresses else addresses, len(addresses), version
- out = new_session(version, addresses)
+ with open(filename, 'r') as f:
+ config.readfp(f)
+ except IOError:
+ pass
+
+def create_config():
+ config = ConfigParser.ConfigParser()
+ # set some defaults, which will be overwritten by the config file
+ config.add_section('server')
+ config.set('server', 'banner', 'Welcome to Electrum!')
+ config.set('server', 'host', 'localhost')
+ config.set('server', 'stratum_tcp_port', '50001')
+ config.set('server', 'stratum_http_port', '8081')
+ config.set('server', 'password', '')
+ config.set('server', 'irc', 'yes')
+ config.set('server', 'irc_nick', '')
+ config.add_section('database')
+ config.set('database', 'type', 'psycopg2')
+ config.set('database', 'database', 'abe')
+ config.set('server', 'backend', 'abe')
+
+ for path in ('/etc/', ''):
+ filename = path + 'electrum.conf'
+ attempt_read_config(config, filename)
- elif cmd=='address.subscribe':
- try:
- session_id, addr = ast.literal_eval(data)
- except:
- traceback.print_exc(file=sys.stdout)
- print data
- return None
- out = add_address_to_session(session_id,addr)
-
- elif cmd=='update_session':
- try:
- session_id, addresses = ast.literal_eval(data)
- except:
- traceback.print_exc(file=sys.stdout)
- return None
- print timestr(), "update session", ipaddr, addresses[0] if addresses else addresses, len(addresses)
- out = update_session(session_id,addresses)
-
- elif cmd=='poll':
- out = poll_session(data)
-
- elif cmd == 'h':
- address = data
- out = repr( store.get_history( address ) )
-
- elif cmd =='tx':
- out = store.send_tx(data)
- print timestr(), "sent tx:", ipaddr, out
-
- elif cmd == 'peers':
- out = repr(irc.get_peers())
-
- else:
- out = None
-
- return out
-
-
-def clean_session_thread():
- while not stopping:
- time.sleep(30)
- t = time.time()
- for k,s in sessions.items():
- if s.get('type') == 'persistent': continue
- t0 = s['last_time']
- if t - t0 > 5*60:
- sessions.pop(k)
- print "lost session", k
-
-
-####################################################################
-
-
-from processor import Shared, Processor, Dispatcher
-from stratum_http import HttpServer
-from stratum import TcpServer
-
-class AbeProcessor(Processor):
- def process(self,request):
- message_id = request['id']
- method = request['method']
- params = request.get('params',[])
- #print request
-
- result = ''
- if method == 'numblocks.subscribe':
- result = store.block_number
- elif method == 'address.subscribe':
- address = params[0]
- store.watch_address(address)
- status = store.get_status(address)
- result = status
- elif method == 'client.version':
- #session.version = params[0]
- pass
- elif method == 'server.banner':
- result = config.get('server','banner').replace('\\n','\n')
- elif method == 'server.peers':
- result = irc.get_peers()
- elif method == 'address.get_history':
- address = params[0]
- result = store.get_history( address )
- elif method == 'transaction.broadcast':
- txo = store.send_tx(params[0])
- print "sent tx:", txo
- result = txo
- else:
- print "unknown method", request
-
- if result!='':
- response = { 'id':message_id, 'method':method, 'params':params, 'result':result }
- self.push_response(response)
-
- def get_status(self,addr):
- return store.get_status(addr)
-
-
-
-####################################################################
-
-
-
-class Irc(threading.Thread):
-
- def __init__(self, processor):
- self.processor = processor
- threading.Thread.__init__(self)
- self.daemon = True
- self.peers = {}
-
- def get_peers(self):
- return self.peers.values()
+ try:
+ with open('/etc/electrum.banner', 'r') as f:
+ config.set('server','banner', f.read())
+ except IOError:
+ pass
+
+ return config
+
+def run_rpc_command(command, stratum_tcp_port):
+ import socket, json
+ s = socket.socket( socket.AF_INET, socket.SOCK_STREAM )
+ s.connect(( host, int(stratum_tcp_port )))
+ method = 'server.' + command
+ request = json.dumps( { 'id':0, 'method':method, 'params':[password] } )
+ s.send(request + '\n')
+ msg = ''
+ while True:
+ o = s.recv(1024)
+ msg += o
+ if msg.find('\n') != -1: break
+ s.close()
+ r = json.loads(msg).get('result')
+ if command == 'stop': print r
+ elif command == 'info':
+ now = time.time()
+ for item in r:
+ print '%15s %3s %7s %.2f'%( item.get('address'), item.get('subscriptions'), item.get('version'), (now - item.get('time')) )
- def run(self):
- NICK = 'E_'+random_string(10)
- while not self.processor.shared.stopped():
- try:
- s = socket.socket()
- s.connect(('irc.freenode.net', 6667))
- s.send('USER electrum 0 * :'+config.get('server','host')+' '+config.get('server','ircname')+'\n')
- s.send('NICK '+NICK+'\n')
- s.send('JOIN #electrum\n')
- sf = s.makefile('r', 0)
- t = 0
- while not self.processor.shared.stopped():
- line = sf.readline()
- line = line.rstrip('\r\n')
- line = line.split()
- if line[0]=='PING':
- s.send('PONG '+line[1]+'\n')
- elif '353' in line: # answer to /names
- k = line.index('353')
- for item in line[k+1:]:
- if item[0:2] == 'E_':
- s.send('WHO %s\n'%item)
- elif '352' in line: # answer to /who
- # warning: this is a horrible hack which apparently works
- k = line.index('352')
- ip = line[k+4]
- ip = socket.gethostbyname(ip)
- name = line[k+6]
- host = line[k+9]
- self.peers[name] = (ip,host)
- if time.time() - t > 5*60:
- self.processor.push_response({'method':'server.peers', 'result':[self.get_peers()]})
- s.send('NAMES #electrum\n')
- t = time.time()
- self.peers = {}
- except:
- traceback.print_exc(file=sys.stdout)
- finally:
- sf.close()
- s.close()
+if __name__ == '__main__':
+ config = create_config()
+ password = config.get('server', 'password')
+ host = config.get('server', 'host')
+ stratum_tcp_port = config.get('server', 'stratum_tcp_port')
+ stratum_http_port = config.get('server', 'stratum_http_port')
+
+ if len(sys.argv) > 1:
+ run_rpc_command(sys.argv[1], stratum_tcp_port)
+ sys.exit(0)
+ from processor import Dispatcher
+ from backends.irc import ServerProcessor
+ backend_name = config.get('server', 'backend')
+ try:
+ backend = __import__("backends." + backend_name,
+ fromlist=["BlockchainProcessor"])
+ except ImportError:
+ sys.stderr.write("Unknown backend '%s' specified\n" % backend_name)
+ raise
+ # Create hub
+ dispatcher = Dispatcher()
+ shared = dispatcher.shared
-if __name__ == '__main__':
+ # Create and register processors
+ chain_proc = backend.BlockchainProcessor(config)
+ dispatcher.register('blockchain', chain_proc)
- if len(sys.argv)>1:
- import jsonrpclib
- server = jsonrpclib.Server('http://%s:8081'%config.get('server','host'))
- cmd = sys.argv[1]
- if cmd == 'load':
- out = server.load(password)
- elif cmd == 'peers':
- out = server.server.peers()
- elif cmd == 'stop':
- out = server.stop(password)
- elif cmd == 'clear_cache':
- out = server.clear_cache(password)
- elif cmd == 'get_cache':
- out = server.get_cache(password,sys.argv[2])
- elif cmd == 'h':
- out = server.address.get_history(sys.argv[2])
- elif cmd == 'tx':
- out = server.transaction.broadcast(sys.argv[2])
- elif cmd == 'b':
- out = server.numblocks.subscribe()
- else:
- out = "Unknown command: '%s'" % cmd
- print out
- sys.exit(0)
+ server_proc = ServerProcessor(config)
+ dispatcher.register('server', server_proc)
- # backend
- store = abe_backend.AbeStore(config)
+ transports = []
+ # Create various transports we need
+ if stratum_tcp_port:
+ from transports.stratum_tcp import TcpServer
+ tcp_server = TcpServer(dispatcher, host, int(stratum_tcp_port))
+ transports.append(tcp_server)
- # old protocol
- thread.start_new_thread(native_server_thread, ())
- thread.start_new_thread(clean_session_thread, ())
+ if stratum_http_port:
+ from transports.stratum_http import HttpServer
+ http_server = HttpServer(dispatcher, host, int(stratum_http_port))
+ transports.append(http_server)
- processor = AbeProcessor()
- shared = Shared()
- # Bind shared to processor since constructor is user defined
- processor.shared = shared
- processor.start()
- # dispatcher
- dispatcher = Dispatcher(shared, processor)
- dispatcher.start()
- # Create various transports we need
- transports = [ TcpServer(shared, processor, "ecdsa.org",50001),
- HttpServer(shared, processor, "ecdsa.org",8081)
- ]
for server in transports:
server.start()
-
- if (config.get('server','irc') == 'yes' ):
- irc = Irc(processor)
- irc.start()
-
-
- print "starting Electrum server"
- store.run(processor)
- print "server stopped"
+ print "Starting Electrum server on", host
+ while not shared.stopped():
+ time.sleep(1)
+ print "Server stopped"