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