2 # Copyright(C) 2011 thomasv@gitorious
4 # This program is free software: you can redistribute it and/or modify
5 # it under the terms of the GNU Affero General Public License as
6 # published by the Free Software Foundation, either version 3 of the
7 # License, or (at your option) any later version.
9 # This program is distributed in the hope that it will be useful, but
10 # WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # Affero General Public License for more details.
14 # You should have received a copy of the GNU Affero General Public
15 # License along with this program. If not, see
16 # <http://www.gnu.org/licenses/agpl.html>.
20 * server should check and return bitcoind status..
21 * improve txpoint sorting
22 * command to check cache
26 import time, socket, operator, thread, ast, sys,re
27 import psycopg2, binascii
30 from Abe.abe import hash_to_address, decode_check_address
31 from Abe.DataStore import DataStore as Datastore_class
32 from Abe import DataStore, readconf, BCDataStream, deserialize, util, base58
36 config = ConfigParser.ConfigParser()
37 # set some defaults, which will be overwritten by the config file
38 config.add_section('server')
39 config.set('server','banner', 'Welcome to Electrum!')
40 config.set('server', 'host', 'ecdsa.org')
41 config.set('server', 'port', 50000)
42 config.set('server', 'password', '')
43 config.set('server', 'irc', 'yes')
44 config.set('server', 'cache', 'no')
45 config.set('server', 'ircname', 'Electrum server')
46 config.add_section('database')
47 config.set('database', 'type', 'psycopg2')
48 config.set('database', 'database', 'abe')
51 f = open('/etc/electrum.conf','r')
55 print "Could not read electrum.conf. I will use the default values."
60 sessions_last_time = {}
61 dblock = thread.allocate_lock()
67 class MyStore(Datastore_class):
69 def import_tx(self, tx, is_coinbase):
70 tx_id = super(MyStore, self).import_tx(tx, is_coinbase)
71 if config.get('server', 'cache') == 'yes': self.update_tx_cache(tx_id)
73 def update_tx_cache(self, txid):
74 inrows = self.get_tx_inputs(txid, False)
76 _hash = store.binout(row[6])
77 address = hash_to_address(chr(0), _hash)
78 if self.tx_cache.has_key(address):
79 #print "cache: invalidating", address, self.ismempool
80 self.tx_cache.pop(address)
81 outrows = self.get_tx_outputs(txid, False)
83 _hash = store.binout(row[6])
84 address = hash_to_address(chr(0), _hash)
85 if self.tx_cache.has_key(address):
86 #print "cache: invalidating", address, self.ismempool
87 self.tx_cache.pop(address)
89 def safe_sql(self,sql, params=(), lock=True):
91 if lock: dblock.acquire()
92 ret = self.selectall(sql,params)
93 if lock: dblock.release()
96 print "sql error", sql
99 def get_tx_outputs(self, tx_id, lock=True):
100 return self.safe_sql("""SELECT
102 txout.txout_scriptPubKey,
109 LEFT JOIN txin ON (txin.txout_id = txout.txout_id)
110 LEFT JOIN pubkey ON (pubkey.pubkey_id = txout.pubkey_id)
111 LEFT JOIN tx nexttx ON (txin.tx_id = nexttx.tx_id)
112 WHERE txout.tx_id = %d
113 ORDER BY txout.txout_pos
114 """%(tx_id), (), lock)
116 def get_tx_inputs(self, tx_id, lock=True):
117 return self.safe_sql(""" SELECT
121 COALESCE(prevtx.tx_hash, u.txout_tx_hash),
123 COALESCE(txout.txout_pos, u.txout_pos),
126 LEFT JOIN txout ON (txout.txout_id = txin.txout_id)
127 LEFT JOIN pubkey ON (pubkey.pubkey_id = txout.pubkey_id)
128 LEFT JOIN tx prevtx ON (txout.tx_id = prevtx.tx_id)
129 LEFT JOIN unlinked_txin u ON (u.txin_id = txin.txin_id)
130 WHERE txin.tx_id = %d
131 ORDER BY txin.txin_pos
132 """%(tx_id,), (), lock)
134 def get_address_out_rows(self, dbhash):
135 return self.safe_sql(""" SELECT
145 FROM chain_candidate cc
146 JOIN block b ON (b.block_id = cc.block_id)
147 JOIN block_tx ON (block_tx.block_id = b.block_id)
148 JOIN tx ON (tx.tx_id = block_tx.tx_id)
149 JOIN txin ON (txin.tx_id = tx.tx_id)
150 JOIN txout prevout ON (txin.txout_id = prevout.txout_id)
151 JOIN pubkey ON (pubkey.pubkey_id = prevout.pubkey_id)
152 WHERE pubkey.pubkey_hash = ?
153 AND cc.in_longest = 1""", (dbhash,))
155 def get_address_out_rows_memorypool(self, dbhash):
156 return self.safe_sql(""" SELECT
163 JOIN txin ON (txin.tx_id = tx.tx_id)
164 JOIN txout prevout ON (txin.txout_id = prevout.txout_id)
165 JOIN pubkey ON (pubkey.pubkey_id = prevout.pubkey_id)
166 WHERE pubkey.pubkey_hash = ? """, (dbhash,))
168 def get_address_in_rows(self, dbhash):
169 return self.safe_sql(""" SELECT
179 FROM chain_candidate cc
180 JOIN block b ON (b.block_id = cc.block_id)
181 JOIN block_tx ON (block_tx.block_id = b.block_id)
182 JOIN tx ON (tx.tx_id = block_tx.tx_id)
183 JOIN txout ON (txout.tx_id = tx.tx_id)
184 JOIN pubkey ON (pubkey.pubkey_id = txout.pubkey_id)
185 WHERE pubkey.pubkey_hash = ?
186 AND cc.in_longest = 1""", (dbhash,))
188 def get_address_in_rows_memorypool(self, dbhash):
189 return self.safe_sql( """ SELECT
196 JOIN txout ON (txout.tx_id = tx.tx_id)
197 JOIN pubkey ON (pubkey.pubkey_id = txout.pubkey_id)
198 WHERE pubkey.pubkey_hash = ? """, (dbhash,))
200 def get_txpoints(self, addr):
202 if config.get('server','cache') == 'yes':
203 cached_version = self.tx_cache.get( addr )
204 if cached_version is not None:
205 return cached_version
207 version, binaddr = decode_check_address(addr)
210 dbhash = self.binin(binaddr)
212 rows += self.get_address_out_rows( dbhash )
213 rows += self.get_address_in_rows( dbhash )
220 nTime, chain_id, height, is_in, blk_hash, tx_hash, tx_id, pos, value = row
222 print "cannot unpack row", row
224 tx_hash = self.hashout_hex(tx_hash)
227 #"chain_id": int(chain_id),
228 "height": int(height),
230 "blk_hash": self.hashout_hex(blk_hash),
237 txpoints.append(txpoint)
238 known_tx.append(self.hashout_hex(tx_hash))
241 # todo: sort them really...
242 txpoints = sorted(txpoints, key=operator.itemgetter("nTime"))
246 rows += self.get_address_in_rows_memorypool( dbhash )
247 rows += self.get_address_out_rows_memorypool( dbhash )
248 address_has_no_mempool = (rows == [])
250 is_in, tx_hash, tx_id, pos, value = row
251 tx_hash = self.hashout_hex(tx_hash)
252 if tx_hash in known_tx:
254 #print "mempool", tx_hash
260 "blk_hash": 'mempool',
266 txpoints.append(txpoint)
269 for txpoint in txpoints:
270 tx_id = txpoint['tx_id']
273 inrows = self.get_tx_inputs(tx_id)
275 _hash = self.binout(row[6])
276 address = hash_to_address(chr(0), _hash)
277 txinputs.append(address)
278 txpoint['inputs'] = txinputs
280 outrows = self.get_tx_outputs(tx_id)
282 _hash = self.binout(row[6])
283 address = hash_to_address(chr(0), _hash)
284 txoutputs.append(address)
285 txpoint['outputs'] = txoutputs
287 # for all unspent inputs, I want their scriptpubkey. (actually I could deduce it from the address)
288 if not txpoint['is_in']:
289 # detect if already redeemed...
291 if row[6] == dbhash: break
294 #row = self.get_tx_output(tx_id,dbhash)
295 # pos, script, value, o_hash, o_id, o_pos, binaddr = row
296 # if not redeemed, we add the script
298 if not row[4]: txpoint['raw_scriptPubKey'] = row[1]
301 if config.get('server','cache') == 'yes' and address_has_no_mempool:
302 self.tx_cache[addr] = txpoints
307 def get_status(self, addr):
308 # last block for an address.
309 tx_points = self.get_txpoints(addr)
313 return tx_points[-1]['blk_hash']
318 conn = bitcoinrpc.connect_to_local()
320 v = conn.importtransaction(tx)
322 v = "error: transaction rejected by memorypool"
326 def listen_thread(store):
327 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
328 s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
329 s.bind((config.get('server','host'), config.getint('server','port')))
332 conn, addr = s.accept()
333 thread.start_new_thread(client_thread, (addr, conn,))
335 def random_string(N):
336 import random, string
337 return ''.join(random.choice(string.ascii_uppercase + string.digits) for x in range(N))
339 def client_thread(ipaddr,conn):
340 #print "client thread", ipaddr
353 cmd, data = ast.literal_eval(msg[:-1])
355 print "syntax error", repr(msg)
360 out = "%d"%block_number
362 session_id = random_string(10)
364 addresses = ast.literal_eval(data)
370 print time.asctime(), "session", ipaddr, session_id, addresses[0], len(addresses)
372 sessions[session_id] = {}
374 sessions[session_id][a] = ''
375 out = repr( (session_id, config.get('server','banner').replace('\\n','\n') ) )
376 sessions_last_time[session_id] = time.time()
380 addresses = sessions.get(session_id)
382 print "session not found", ipaddr
383 out = repr( (-1, {}))
385 sessions_last_time[session_id] = time.time()
387 for addr in addresses:
388 status = store.get_status( addr )
389 last_status = sessions[session_id].get( addr )
390 if last_status != status:
391 sessions[session_id][addr] = status
393 out = repr( (block_number, ret ) )
398 out = repr( store.get_txpoints( address ) )
401 if config.get('server','password') == data:
402 out = repr( len(sessions) )
404 out = 'wrong password'
411 if config.get('server','password') == data:
415 out = 'wrong password'
418 out = repr(peer_list.values())
424 #print ipaddr, cmd, len(out)
428 print "error, could not send"
434 ds = BCDataStream.BCDataStream()
439 def memorypool_update(store):
440 conn = bitcoinrpc.connect_to_local()
442 v = conn.getmemorypool()
444 print "cannot contact bitcoin daemon"
446 v = v['transactions']
449 ds.write(hextx.decode('hex'))
450 tx = deserialize.parse_Transaction(ds)
453 tx['hash'] = util.double_sha256(tx['tx'])
455 if store.tx_find_id_and_value(tx):
458 store.import_tx(tx, False)
465 def clean_session_thread():
469 for k,t0 in sessions_last_time.items():
471 print "lost session",k
473 sessions_last_time.pop(k)
478 NICK = 'E_'+random_string(10)
482 s.connect(('irc.freenode.net', 6667))
483 s.send('USER electrum 0 * :'+config.get('server','host')+' '+config.get('server','ircname')+'\n')
484 s.send('NICK '+NICK+'\n')
485 s.send('JOIN #electrum\n')
486 sf = s.makefile('r', 0)
490 line = line.rstrip('\r\n')
493 s.send('PONG '+line[1]+'\n')
494 elif '353' in line: # answer to /names
495 k = line.index('353')
496 for item in line[k+1:]:
497 if item[0:2] == 'E_':
498 s.send('WHO %s\n'%item)
499 elif '352' in line: # answer to /who
500 # warning: this is a horrible hack which apparently works
501 k = line.index('352')
503 ip = socket.gethostbyname(ip)
506 peer_list[name] = (ip,host)
507 elif time.time() - t > 5*60:
508 s.send('NAMES #electrum\n')
512 traceback.print_exc(file=sys.stdout)
521 if __name__ == '__main__':
526 request = "('load','%s')#"%config.get('server','password')
528 request = "('peers','')#"
530 request = "('stop','%s')#"%config.get('server','password')
532 request = "('h','%s')#"%sys.argv[2]
534 s = socket.socket( socket.AF_INET, socket.SOCK_STREAM)
535 s.connect((config.get('server','host'), config.getint('server','port')))
547 print "starting Electrum server"
548 conf = DataStore.CONFIG_DEFAULTS
549 args, argv = readconf.parse_argv( [], conf)
550 args.dbtype= config.get('database','type')
551 if args.dbtype == 'sqlite3':
552 args.connect_args = { 'database' : config.get('database','database') }
553 elif args.dbtype == 'MySQLdb':
554 args.connect_args = { 'db' : config.get('database','database'), 'user' : config.get('database','username'), 'passwd' : config.get('database','password') }
555 elif args.dbtype == 'psycopg2':
556 args.connect_args = { 'database' : config.get('database','database') }
557 store = MyStore(args)
559 store.ismempool = False
561 thread.start_new_thread(listen_thread, (store,))
562 thread.start_new_thread(clean_session_thread, ())
563 if (config.get('server','irc') == 'yes' ):
564 thread.start_new_thread(irc_thread, ())
570 store.ismempool = True
571 memorypool_update(store)
572 store.ismempool = False
573 block_number = store.get_block_number(1)
576 traceback.print_exc(file=sys.stdout)
579 print "server stopped"