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         if self.pruning:
  48             self.pruning_limit = config.get('leveldb', 'pruning_limit')
  49         self.nick = self.prepend + self.nick
  50
  51     def get_peers(self):
  52         return self.peers.values()
  53
  54     def getname(self):
  55         s = 'v' + VERSION + ' '
  56         if self.pruning:
  57             s += 'p' + self.pruning_limit + ' '
  58
  59         def add_port(letter, number):
  60             DEFAULT_PORTS = {'t':'50001', 's':'50002', 'h':'8081', 'g':'8082'}
  61             if not number: return ''
  62             if DEFAULT_PORTS[letter] == number:
  63                 return letter + ' '
  64             else:
  65                 return letter + number + ' '
  66
  67         s += add_port('t',self.stratum_tcp_port)
  68         s += add_port('h',self.stratum_http_port)
  69         s += add_port('s',self.stratum_tcp_ssl_port)
  70         s += add_port('g',self.stratum_http_ssl_port)
  71         return s
  72
  73     def run(self):
  74         ircname = self.getname()
  75
  76         while not self.processor.shared.stopped():
  77             try:
  78                 s = socket.socket()
  79                 s.connect(('irc.freenode.net', 6667))
  80                 s.settimeout(300)
  81             except:
  82                 s.close()
  83                 time.sleep(10)
  84                 continue
  85
  86             try:
  87                 s.send('USER electrum 0 * :' + self.host + ' ' + ircname + '\n')
  88                 s.send('NICK ' + self.nick + '\n')
  89                 s.send('JOIN #electrum\n')
  90                 sf = s.makefile('r', 0)
  91                 t = 0
  92                 while not self.processor.shared.stopped():
  93                     line = sf.readline().rstrip('\r\n').split()
  94                     if not line:
  95                         continue
  96                     if line[0] == 'PING':
  97                         s.send('PONG ' + line[1] + '\n')
  98                     elif '353' in line:  # answer to /names
  99                         k = line.index('353')
 100                         for item in line[k+1:]:
 101                             if item.startswith(self.prepend):
 102                                 s.send('WHO %s\n' % item)
 103                     elif '352' in line:  # answer to /who
 104                         # warning: this is a horrible hack which apparently works
 105                         k = line.index('352')
 106                         try:
 107                             ip = socket.gethostbyname(line[k+4])
 108                         except:
 109                             print_log("gethostbyname error", line[k+4])
 110                             continue
 111                         name = line[k+6]
 112                         host = line[k+9]
 113                         ports = line[k+10:]
 114                         self.peers[name] = (ip, host, ports)
 115                     if time.time() - t > 5*60:
 116                         self.processor.push_response({'method': 'server.peers', 'params': [self.get_peers()]})
 117                         s.send('NAMES #electrum\n')
 118                         t = time.time()
 119                         self.peers = {}
 120             except:
 121                 traceback.print_exc(file=sys.stdout)
 122             finally:
 123                 sf.close()
 124                 s.close()
 125
 126         print_log("quitting IRC")
 127
 128
 129 class ServerProcessor(Processor):
 130
 131     def __init__(self, config):
 132         Processor.__init__(self)
 133         self.daemon = True
 134         self.banner = config.get('server', 'banner')
 135         self.password = config.get('server', 'password')
 136
 137         if config.get('server', 'irc') == 'yes':
 138             self.irc = IrcThread(self, config)
 139         else:
 140             self.irc = None
 141
 142     def get_peers(self):
 143         if self.irc:
 144             return self.irc.get_peers()
 145         else:
 146             return []
 147
 148     def run(self):
 149         if self.irc:
 150             self.irc.start()
 151         Processor.run(self)
 152
 153     def process(self, request):
 154         method = request['method']
 155         params = request['params']
 156         result = None
 157
 158         if method in ['server.stop', 'server.info']:
 159             try:
 160                 password = request['params'][0]
 161             except:
 162                 password = None
 163
 164             if password != self.password:
 165                 self.push_response({'id': request['id'],
 166                                     'result': None,
 167                                     'error': 'incorrect password'})
 168                 return
 169
 170         if method == 'server.banner':
 171             result = self.banner.replace('\\n', '\n')
 172
 173         elif method == 'server.peers.subscribe':
 174             result = self.get_peers()
 175
 176         elif method == 'server.version':
 177             result = VERSION
 178
 179         elif method == 'server.stop':
 180             self.shared.stop()
 181             result = 'stopping, please wait until all threads terminate.'
 182
 183         elif method == 'server.info':
 184             result = map(lambda s: {"time": s.time,
 185                                     "name": s.name,
 186                                     "address": s.address,
 187                                     "version": s.version,
 188                                     "subscriptions": len(s.subscriptions)},
 189                          self.dispatcher.request_dispatcher.get_sessions())
 190
 191         elif method == 'server.cache':
 192             p = self.dispatcher.request_dispatcher.processors['blockchain']
 193             result = len(repr(p.store.tx_cache))
 194
 195         elif method == 'server.load':
 196             p = self.dispatcher.request_dispatcher.processors['blockchain']
 197             result = p.queue.qsize()
 198
 199         else:
 200             print_log("unknown method", request)
 201
 202         if result != '':
 203             self.push_response({'id': request['id'], 'result': result})