"""
-import time, socket, operator, thread, ast, sys,re
+import time, json, socket, operator, thread, ast, sys,re
import psycopg2, binascii
from Abe.abe import hash_to_address, decode_check_address
config.set('server', 'port', 50000)
config.set('server', 'password', '')
config.set('server', 'irc', 'yes')
-config.set('server', 'cache', 'no')
config.set('server', 'ircname', 'Electrum server')
config.add_section('database')
config.set('database', 'type', 'psycopg2')
stopping = False
block_number = -1
+old_block_number = -1
sessions = {}
+sessions_sub_numblocks = [] # sessions that have subscribed to the service
+
dblock = thread.allocate_lock()
peer_list = {}
wallets = {} # for ultra-light clients such as bccapi
+from Queue import Queue
+input_queue = Queue()
+output_queue = Queue()
+address_queue = Queue()
+
class MyStore(Datastore_class):
def import_tx(self, tx, is_coinbase):
tx_id = super(MyStore, self).import_tx(tx, is_coinbase)
- if config.get('server', 'cache') == 'yes': self.update_tx_cache(tx_id)
+ self.update_tx_cache(tx_id)
def update_tx_cache(self, txid):
inrows = self.get_tx_inputs(txid, False)
if self.tx_cache.has_key(address):
print "cache: invalidating", address
self.tx_cache.pop(address)
+ address_queue.put(address)
+
outrows = self.get_tx_outputs(txid, False)
for row in outrows:
_hash = store.binout(row[6])
if self.tx_cache.has_key(address):
print "cache: invalidating", address
self.tx_cache.pop(address)
+ address_queue.put(address)
def safe_sql(self,sql, params=(), lock=True):
try:
def get_history(self, addr):
- if config.get('server','cache') == 'yes':
- cached_version = self.tx_cache.get( addr )
- if cached_version is not None:
- return cached_version
+ cached_version = self.tx_cache.get( addr )
+ if cached_version is not None:
+ return cached_version
version, binaddr = decode_check_address(addr)
if binaddr is None:
tx_hash = self.hashout_hex(tx_hash)
txpoint = {
"nTime": int(nTime),
- #"chain_id": int(chain_id),
"height": int(height),
"is_in": int(is_in),
"blk_hash": self.hashout_hex(blk_hash),
#print "mempool", tx_hash
txpoint = {
"nTime": 0,
- #"chain_id": 1,
"height": 0,
"is_in": int(is_in),
"blk_hash": 'mempool',
if not row[4]: txpoint['raw_scriptPubKey'] = row[1]
# cache result
- if config.get('server','cache') == 'yes' and not address_has_mempool:
+ if not address_has_mempool:
self.tx_cache[addr] = txpoints
return txpoints
respdata = urllib.urlopen(bitcoind_url, postdata).read()
r = loads(respdata)
if r['error'] != None:
- out = "error: transaction rejected by memorypool"
+ out = "error: transaction rejected by memorypool\n"+tx
else:
out = r['result']
return out
k = 0
for addr in addresses:
if store.tx_cache.get( addr ) is not None: k += 1
-
- # get addtess status, i.e. the last block for that address.
- tx_points = store.get_history(addr)
- if not tx_points:
- status = None
- else:
- lastpoint = tx_points[-1]
- status = lastpoint['blk_hash']
- # this is a temporary hack; move it up once old clients have disappeared
- if status == 'mempool' and session['version'] != "old":
- status = status + ':%d'% len(tx_points)
-
+ status = get_address_status( addr )
last_status = addresses.get( addr )
if last_status != status:
addresses[addr] = status
return out
+def do_update_address(addr):
+ # an address was involved in a transaction; we check if it was subscribed to in a session
+ # the address can be subscribed in several sessions; the cache should ensure that we don't do redundant requests
+ for session_id in sessions.keys():
+ session = sessions[session_id]
+ if session.get('type') != 'subscribe': continue
+ addresses = session['addresses'].keys()
+
+ if addr in addresses:
+ print "address ", addr, "is watched by", session_id
+ status = get_address_status( addr )
+ last_status = session['addresses'][addr]
+ if last_status != status:
+ print "sending new status for %s:"%addr, status
+ send_status(session_id,addr,status)
+ sessions[session_id]['addresses'][addr] = status
+
+
+def get_address_status(addr):
+ # get address status, i.e. the last block for that address.
+ tx_points = store.get_history(addr)
+ if not tx_points:
+ status = None
+ else:
+ lastpoint = tx_points[-1]
+ status = lastpoint['blk_hash']
+ # this is a temporary hack; move it up once old clients have disappeared
+ if status == 'mempool': # and session['version'] != "old":
+ status = status + ':%d'% len(tx_points)
+ return status
+
+
+def send_numblocks(session_id):
+ out = json.dumps( {'method':'numblocks.subscribe', 'result':block_number} )
+ output_queue.put((session_id, out))
+
+def send_status(session_id, address, status):
+ out = json.dumps( { 'method':'address.subscribe', 'address':address, 'status':status } )
+ output_queue.put((session_id, out))
+
+def subscribe_to_numblocks(session_id):
+ sessions_sub_numblocks.append(session_id)
+ send_numblocks(session_id)
+
+def subscribe_to_address(session_id, address):
+ status = get_address_status(address)
+ sessions[session_id]['type'] = 'subscribe'
+ sessions[session_id]['addresses'][address] = status
+ sessions[session_id]['last_time'] = time.time()
+ send_status(session_id, address, status)
+
def new_session(version, addresses):
session_id = random_string(10)
sessions[session_id] = { 'addresses':{}, 'version':version }
sessions[session_id]['last_time'] = time.time()
return 'ok'
-def listen_thread(store):
+def native_server_thread():
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind((config.get('server','host'), config.getint('server','port')))
while not stopping:
conn, addr = s.accept()
try:
- thread.start_new_thread(client_thread, (addr, conn,))
+ thread.start_new_thread(native_client_thread, (addr, conn,))
except:
# can't start new thread if there is no memory..
traceback.print_exc(file=sys.stdout)
-
-def client_thread(ipaddr,conn):
+def native_client_thread(ipaddr,conn):
#print "client thread", ipaddr
try:
ipaddr = ipaddr[0]
conn.close()
+
+# used by the native handler
def do_command(cmd, data, ipaddr):
timestr = time.strftime("[%d/%m/%Y-%H:%M:%S]")
+####################################################################
+
+def tcp_server_thread():
+ thread.start_new_thread(process_input_queue, ())
+ thread.start_new_thread(process_output_queue, ())
+
+ s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+ s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+ s.bind((config.get('server','host'), 50001))
+ s.listen(1)
+ while not stopping:
+ conn, addr = s.accept()
+ try:
+ thread.start_new_thread(tcp_client_thread, (addr, conn,))
+ except:
+ # can't start new thread if there is no memory..
+ traceback.print_exc(file=sys.stdout)
+
+
+def close_session(session_id):
+ print "lost connection", session_id
+ sessions.pop(session_id)
+ if session_id in sessions_sub_numblocks:
+ sessions_sub_numblocks.remove(session_id)
+
+
+# one thread per client. put requests in a queue.
+def tcp_client_thread(ipaddr,conn):
+ """ use a persistent connection. put commands in a queue."""
+ print "persistent client thread", ipaddr
+ global sessions
+
+ session_id = random_string(10)
+ sessions[session_id] = { 'conn':conn, 'addresses':{}, 'version':'unknown' }
+
+ ipaddr = ipaddr[0]
+ msg = ''
+
+ while not stopping:
+ try:
+ d = conn.recv(1024)
+ except socket.error:
+ d = ''
+ if not d:
+ close_session(session_id)
+ break
+
+ msg += d
+ while True:
+ s = msg.find('\n')
+ if s ==-1:
+ break
+ else:
+ c = msg[0:s].strip()
+ msg = msg[s+1:]
+ if c == 'quit':
+ conn.close()
+ close_session(session_id)
+ return
+ try:
+ c = json.loads(c)
+ except:
+ print "json error", repr(c)
+ continue
+ try:
+ cmd = c['method']
+ data = c['params']
+ except:
+ print "syntax error", repr(c), ipaddr
+ continue
+
+ # add to queue
+ input_queue.put((session_id, cmd, data))
+
+
+
+# read commands from the input queue. perform requests, etc. this should be called from the main thread.
+def process_input_queue():
+ while not stopping:
+ session_id, cmd, data = input_queue.get()
+ if session_id not in sessions.keys():
+ continue
+ out = None
+ if cmd == 'address.subscribe':
+ subscribe_to_address(session_id,data)
+ elif cmd == 'numblocks.subscribe':
+ subscribe_to_numblocks(session_id)
+ elif cmd == 'client.version':
+ sessions[session_id]['version'] = data
+ elif cmd == 'server.banner':
+ out = json.dumps( { 'method':'server.banner', 'result':config.get('server','banner').replace('\\n','\n') } )
+ elif cmd == 'server.peers':
+ out = json.dumps( { 'method':'server.peers', 'result':peer_list.values() } )
+ elif cmd == 'address.get_history':
+ address = data
+ out = json.dumps( { 'method':'address.get_history', 'address':address, 'result':store.get_history( address ) } )
+ elif cmd == 'transaction.broadcast':
+ txo = send_tx(data)
+ print "sent tx:", txo
+ out = json.dumps( { 'method':'transaction.broadcast', 'result':txo } )
+ else:
+ print "unknown command", cmd
+ if out:
+ output_queue.put((session_id, out))
+
+# this is a separate thread
+def process_output_queue():
+ while not stopping:
+ session_id, out = output_queue.get()
+ session = sessions.get(session_id)
+ if session:
+ try:
+ conn = session.get('conn')
+ conn.send(out+'\n')
+ except:
+ close_session(session_id)
+
+
+
+
+####################################################################
+
def memorypool_update(store):
+ """ when a tx is removed from memory pool, I need to notify subscribers"""
+
ds = BCDataStream.BCDataStream()
+ previous_transactions = store.mempool_keys
store.mempool_keys = []
postdata = dumps({"method": 'getmemorypool', 'params': [], 'id':'jsonrpc'})
ds.write(hextx.decode('hex'))
tx = deserialize.parse_Transaction(ds)
tx['hash'] = util.double_sha256(tx['tx'])
- tx_hash = tx['hash'][::-1].encode('hex')
+ tx_hash = store.hashin(tx['hash'])
+
store.mempool_keys.append(tx_hash)
if store.tx_find_id_and_value(tx):
pass
else:
store.import_tx(tx, False)
-
store.commit()
+ for tx_hash in previous_transactions:
+ if tx_hash not in store.mempool_keys:
+ tx = { 'hash':store.hashout(tx_hash) }
+ tx_id = store.tx_find_id_and_value(tx)
+ if tx_id:
+ store.update_tx_cache(tx_id)
def clean_session_thread():
time.sleep(30)
t = time.time()
for k,s in sessions.items():
+ if s.get('type') == 'subscribe': continue
t0 = s['last_time']
if t - t0 > 5*60:
sessions.pop(k)
+ print "lost session", k
def irc_thread():
-def jsonrpc_thread(store):
+def http_server_thread(store):
# see http://code.google.com/p/jsonrpclib/
from SocketServer import ThreadingMixIn
from jsonrpclib.SimpleJSONRPCServer import SimpleJSONRPCServer
print "starting Electrum server"
- print "cache:", config.get('server', 'cache')
conf = DataStore.CONFIG_DEFAULTS
args, argv = readconf.parse_argv( [], conf)
store.tx_cache = {}
store.mempool_keys = {}
- thread.start_new_thread(listen_thread, (store,))
- thread.start_new_thread(jsonrpc_thread, (store,))
+ # supported protocols
+ thread.start_new_thread(native_server_thread, ())
+ thread.start_new_thread(tcp_server_thread, ())
+ thread.start_new_thread(http_server_thread, (store,))
+
thread.start_new_thread(clean_session_thread, ())
+
if (config.get('server','irc') == 'yes' ):
thread.start_new_thread(irc_thread, ())
store.catch_up()
memorypool_update(store)
block_number = store.get_block_number(1)
+
+ if block_number != old_block_number:
+ old_block_number = block_number
+ for session_id in sessions_sub_numblocks:
+ send_numblocks(session_id)
+
except IOError:
print "IOError: cannot reach bitcoind"
block_number = 0
block_number = 0
finally:
dblock.release()
+
+ # do addresses
+ while True:
+ try:
+ addr = address_queue.get(False)
+ except:
+ break
+ do_update_address(addr)
+
time.sleep(10)
print "server stopped"
git://git.novaco.in / electrum-server.git / blobdiff