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.host)[:5].encode("hex")
  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(0.1)
  81             except:
  82                 s.close()
  83                 time.sleep(10)
  84                 continue
  85
  86             self.message = ''
  87             out_msg = []
  88
  89             try:
  90                 s.send('USER electrum 0 * :' + self.host + ' ' + ircname + '\n')
  91                 s.send('NICK ' + self.nick + '\n')
  92                 s.send('JOIN #electrum\n')
  93                 t = 0
  94
  95                 while not self.processor.shared.stopped():
  96                     try:
  97                         data = s.recv(2048)
  98                     except socket.timeout, e:
  99                         if out_msg:
 100                             m = out_msg.pop(0)
 101                             s.send(m)
 102                             continue
 103                     except:
 104                         print_log( "irc: socket error" )
 105                         time.sleep(1)
 106                         break
 107
 108
 109                     self.message += data
 110
 111                     while self.message.find('\n') != -1:
 112                         pos = self.message.find('\n')
 113                         line = self.message[0:pos]
 114                         self.message = self.message[pos+1:]
 115                         line = line.strip('\r')
 116                         if not line:
 117                             continue
 118                         line = line.split()
 119                         if line[0] == 'PING':
 120                             out_msg.append('PONG ' + line[1] + '\n')
 121                         elif '353' in line:  # answer to /names
 122                             k = line.index('353')
 123                             for item in line[k+1:]:
 124                                 if item.startswith(self.prepend):
 125                                     out_msg.append('WHO %s\n' % item)
 126                         elif '352' in line:  # answer to /who
 127                             # warning: this is a horrible hack which apparently works
 128                             k = line.index('352')
 129                             try:
 130                                 ip = socket.gethostbyname(line[k+4])
 131                             except:
 132                                 print_log("gethostbyname error", line[k+4])
 133                                 continue
 134                             name = line[k+6]
 135                             host = line[k+9]
 136                             ports = line[k+10:]
 137                             self.peers[name] = (ip, host, ports)
 138
 139                     if time.time() - t > 5*60:
 140                         #self.processor.push_response({'method': 'server.peers', 'params': [self.get_peers()]})
 141                         s.send('NAMES #electrum\n')
 142                         t = time.time()
 143                         self.peers = {}
 144             except:
 145                 traceback.print_exc(file=sys.stdout)
 146                 time.sleep(1)
 147             finally:
 148                 s.close()
 149
 150         print_log("quitting IRC")
 151
 152
 153 class ServerProcessor(Processor):
 154
 155     def __init__(self, config):
 156         Processor.__init__(self)
 157         self.daemon = True
 158         self.banner = config.get('server', 'banner')
 159         self.password = config.get('server', 'password')
 160
 161         if config.get('server', 'irc') == 'yes':
 162             self.irc = IrcThread(self, config)
 163         else:
 164             self.irc = None
 165
 166     def get_peers(self):
 167         if self.irc:
 168             return self.irc.get_peers()
 169         else:
 170             return []
 171
 172     def run(self):
 173         if self.irc:
 174             self.irc.start()
 175         Processor.run(self)
 176
 177     def process(self, session, request):
 178         method = request['method']
 179         params = request['params']
 180         result = None
 181
 182         if method in ['server.stop', 'server.info', 'server.debug']:
 183             try:
 184                 password = request['params'][0]
 185             except:
 186                 password = None
 187
 188             if password != self.password:
 189                 self.push_response(session,
 190                                    {'id': request['id'],
 191                                     'result': None,
 192                                     'error': 'incorrect password'})
 193                 return
 194
 195         if method == 'server.banner':
 196             result = self.banner.replace('\\n', '\n')
 197
 198         elif method == 'server.peers.subscribe':
 199             result = self.get_peers()
 200
 201         elif method == 'server.version':
 202             result = VERSION
 203
 204         elif method == 'server.stop':
 205             self.shared.stop()
 206             result = 'stopping, please wait until all threads terminate.'
 207
 208         elif method == 'server.info':
 209             result = map(lambda s: {"time": s.time,
 210                                     "name": s.name,
 211                                     "address": s.address,
 212                                     "version": s.version,
 213                                     "subscriptions": len(s.subscriptions)},
 214                          self.dispatcher.request_dispatcher.get_sessions())
 215
 216         elif method == 'server.debug':
 217             try:
 218                 s = request['params'][1]
 219             except:
 220                 s = None
 221
 222             if s:
 223                 from guppy import hpy
 224                 h = hpy()
 225                 bp = self.dispatcher.request_dispatcher.processors['blockchain']
 226                 try:
 227                     result = str(eval(s))
 228                 except:
 229                     result = "error"
 230         else:
 231             print_log("unknown method", method)
 232
 233         if result != '':
 234             self.push_response(session, {'id': request['id'], 'result': result})