backends/irc/__init__.py

   1 import socket
   2 import sys
   3 import threading
   4 import time
   5 import traceback
   6
   7 from processor import Processor
   8 from utils import Hash, print_log
   9 from version import VERSION
  10
  11
  12 class IrcThread(threading.Thread):
  13
  14     def __init__(self, processor, config):
  15         threading.Thread.__init__(self)
  16
  17         self.processor = processor
  18         self.daemon = True
  19         self.stratum_tcp_port = config.get('server', 'stratum_tcp_port')
  20         self.stratum_http_port = config.get('server', 'stratum_http_port')
  21         self.stratum_tcp_ssl_port = config.get('server', 'stratum_tcp_ssl_port')
  22         self.stratum_http_ssl_port = config.get('server', 'stratum_http_ssl_port')
  23         self.report_stratum_tcp_port = config.get('server', 'report_stratum_tcp_port')
  24         self.report_stratum_http_port = config.get('server', 'report_stratum_http_port')
  25         self.report_stratum_tcp_ssl_port = config.get('server', 'report_stratum_tcp_ssl_port')
  26         self.report_stratum_http_ssl_port = config.get('server', 'report_stratum_http_ssl_port')
  27         self.peers = {}
  28         self.host = config.get('server', 'host')
  29         self.report_host = config.get('server', 'report_host')
  30         self.nick = config.get('server', 'irc_nick')
  31         if self.report_stratum_tcp_port:
  32             self.stratum_tcp_port = self.report_stratum_tcp_port
  33         if self.report_stratum_http_port:
  34             self.stratum_http_port = self.report_stratum_http_port
  35         if self.report_stratum_tcp_ssl_port:
  36             self.stratum_tcp_ssl_port = self.report_stratum_tcp_ssl_port
  37         if self.report_stratum_http_ssl_port:
  38             self.stratum_http_ssl_port = self.report_stratum_http_ssl_port
  39         if self.report_host:
  40             self.host = self.report_host
  41         if not self.nick:
  42             self.nick = Hash(self.report_host)[:10]
  43         self.prepend = 'E_'
  44         if config.get('server', 'coin') == 'litecoin':
  45             self.prepend = 'EL_'
  46         self.pruning = config.get('server', 'backend') == 'leveldb'
  47         self.nick = self.prepend + self.nick
  48
  49     def get_peers(self):
  50         return self.peers.values()
  51
  52     def getname(self):
  53         s = 'v' + VERSION + ' '
  54         if self.pruning:
  55             s += 'p '
  56         if self.stratum_tcp_port:
  57             s += 't' + self.stratum_tcp_port + ' '
  58         if self.stratum_http_port:
  59             s += 'h' + self.stratum_http_port + ' '
  60         if self.stratum_tcp_port:
  61             s += 's' + self.stratum_tcp_ssl_port + ' '
  62         if self.stratum_http_port:
  63             s += 'g' + self.stratum_http_ssl_port + ' '
  64         return s
  65
  66     def run(self):
  67         ircname = self.getname()
  68
  69         while not self.processor.shared.stopped():
  70             try:
  71                 s = socket.socket()
  72                 s.connect(('irc.freenode.net', 6667))
  73                 s.settimeout(300)
  74             except:
  75                 s.close()
  76                 time.sleep(10)
  77                 continue
  78
  79             try:
  80                 s.send('USER electrum 0 * :' + self.host + ' ' + ircname + '\n')
  81                 s.send('NICK ' + self.nick + '\n')
  82                 s.send('JOIN #electrum\n')
  83                 sf = s.makefile('r', 0)
  84                 t = 0
  85                 while not self.processor.shared.stopped():
  86                     line = sf.readline().rstrip('\r\n').split()
  87                     if not line:
  88                         continue
  89                     if line[0] == 'PING':
  90                         s.send('PONG ' + line[1] + '\n')
  91                     elif '353' in line:  # answer to /names
  92                         k = line.index('353')
  93                         for item in line[k+1:]:
  94                             if item.startswith(self.prepend):
  95                                 s.send('WHO %s\n' % item)
  96                     elif '352' in line:  # answer to /who
  97                         # warning: this is a horrible hack which apparently works
  98                         k = line.index('352')
  99                         ip = socket.gethostbyname(line[k+4])
 100                         name = line[k+6]
 101                         host = line[k+9]
 102                         ports = line[k+10:]
 103                         self.peers[name] = (ip, host, ports)
 104                     if time.time() - t > 5*60:
 105                         self.processor.push_response({'method': 'server.peers', 'params': [self.get_peers()]})
 106                         s.send('NAMES #electrum\n')
 107                         t = time.time()
 108                         self.peers = {}
 109             except:
 110                 traceback.print_exc(file=sys.stdout)
 111             finally:
 112                 sf.close()
 113                 s.close()
 114
 115         print_log("quitting IRC")
 116
 117
 118 class ServerProcessor(Processor):
 119
 120     def __init__(self, config):
 121         Processor.__init__(self)
 122         self.daemon = True
 123         self.banner = config.get('server', 'banner')
 124         self.password = config.get('server', 'password')
 125
 126         if config.get('server', 'irc') == 'yes':
 127             self.irc = IrcThread(self, config)
 128         else:
 129             self.irc = None
 130
 131     def get_peers(self):
 132         if self.irc:
 133             return self.irc.get_peers()
 134         else:
 135             return []
 136
 137     def run(self):
 138         if self.irc:
 139             self.irc.start()
 140         Processor.run(self)
 141
 142     def process(self, request):
 143         method = request['method']
 144         params = request['params']
 145         result = None
 146
 147         if method in ['server.stop', 'server.info']:
 148             try:
 149                 password = request['params'][0]
 150             except:
 151                 password = None
 152
 153             if password != self.password:
 154                 self.push_response({'id': request['id'],
 155                                     'result': None,
 156                                     'error': 'incorrect password'})
 157                 return
 158
 159         if method == 'server.banner':
 160             result = self.banner.replace('\\n', '\n')
 161
 162         elif method == 'server.peers.subscribe':
 163             result = self.get_peers()
 164
 165         elif method == 'server.version':
 166             result = VERSION
 167
 168         elif method == 'server.stop':
 169             self.shared.stop()
 170             result = 'stopping, please wait until all threads terminate.'
 171
 172         elif method == 'server.info':
 173             result = map(lambda s: {"time": s.time,
 174                                     "name": s.name,
 175                                     "address": s.address,
 176                                     "version": s.version,
 177                                     "subscriptions": len(s.subscriptions)},
 178                          self.dispatcher.request_dispatcher.get_sessions())
 179
 180         elif method == 'server.cache':
 181             p = self.dispatcher.request_dispatcher.processors['blockchain']
 182             result = len(repr(p.store.tx_cache))
 183
 184         elif method == 'server.load':
 185             p = self.dispatcher.request_dispatcher.processors['blockchain']
 186             result = p.queue.qsize()
 187
 188         else:
 189             print_log("unknown method", request)
 190
 191         if result != '':
 192             self.push_response({'id': request['id'], 'result': result})