# along with this program. If not, see <http://www.gnu.org/licenses/>.
-import random, socket, ast, re, ssl, errno
+import random, ast, re, errno, os
import threading, traceback, sys, time, json, Queue
+import socks
+import socket
+import ssl
from version import ELECTRUM_VERSION, PROTOCOL_VERSION
from util import print_error, print_msg
+from simple_config import SimpleConfig
+import x509
DEFAULT_TIMEOUT = 5
proxy_modes = ['socks4', 'socks5', 'http']
-def pick_random_server():
- return random.choice( filter_protocol(DEFAULT_SERVERS,'s') )
+
+
+def cert_verify_hostname(s):
+ # hostname verification (disabled)
+ from backports.ssl_match_hostname import match_hostname, CertificateError
+ try:
+ match_hostname(s.getpeercert(True), host)
+ print_error("hostname matches", host)
+ except CertificateError, ce:
+ print_error("hostname did not match", host)
+
class Interface(threading.Thread):
- def init_server(self, host, port, proxy=None, use_ssl=True):
- self.host = host
- self.port = port
- self.proxy = proxy
- self.use_ssl = use_ssl
+ def __init__(self, server, config = None):
+
+ threading.Thread.__init__(self)
+ self.daemon = True
+ self.config = config if config is not None else SimpleConfig()
+ self.connect_event = threading.Event()
+
+ self.subscriptions = {}
+ self.lock = threading.Lock()
+
+ self.rtime = 0
+ self.bytes_received = 0
+ self.is_connected = False
self.poll_interval = 1
+ self.debug = False # dump network messages. can be changed at runtime using the console
+
#json
self.message_id = 0
self.unanswered_requests = {}
- self.pending_transactions_for_notifications= []
+
+ # parse server
+ self.server = server
+ try:
+ host, port, protocol = self.server.split(':')
+ port = int(port)
+ except Exception:
+ self.server = None
+ return
+
+ if protocol not in 'ghst':
+ raise Exception('Unknown protocol: %s'%protocol)
+
+ self.host = host
+ self.port = port
+ self.protocol = protocol
+ self.use_ssl = ( protocol in 'sg' )
+ self.proxy = self.parse_proxy_options(self.config.get('proxy'))
+ if self.proxy:
+ self.proxy_mode = proxy_modes.index(self.proxy["mode"]) + 1
+
+
+
def queue_json_response(self, c):
# uncomment to debug
- # print_error( "<--",c )
+ if self.debug:
+ print_error( "<--",c )
msg_id = c.get('id')
error = c.get('error')
self.server_version = result
- def init_http(self, host, port, proxy=None, use_ssl=True):
- self.init_server(host, port, proxy, use_ssl)
+ def start_http(self):
self.session_id = None
self.is_connected = True
self.connection_msg = ('https' if self.use_ssl else 'http') + '://%s:%d'%( self.host, self.port )
try:
self.poll()
- except:
+ except Exception:
print_error("http init session failed")
self.is_connected = False
return
break
except socket.error:
break
- except:
+ except Exception:
traceback.print_exc(file=sys.stdout)
break
def poll(self):
- self.send([])
+ self.send([], None)
def send_http(self, messages, callback):
print_error( "send_http", messages )
if self.proxy:
- import socks
- socks.setdefaultproxy(proxy_modes.index(self.proxy["mode"]) + 1, self.proxy["host"], int(self.proxy["port"]) )
+ socks.setdefaultproxy(self.proxy_mode, self.proxy["host"], int(self.proxy["port"]) )
socks.wrapmodule(urllib2)
cj = cookielib.CookieJar()
t1 = time.time()
data = []
+ ids = []
for m in messages:
method, params = m
if type(params) != type([]): params = [params]
data.append( { 'method':method, 'id':self.message_id, 'params':params } )
self.unanswered_requests[self.message_id] = method, params, callback
+ ids.append(self.message_id)
self.message_id += 1
if data:
try:
req = urllib2.Request(self.connection_msg, data_json, headers)
response_stream = urllib2.urlopen(req, timeout=DEFAULT_TIMEOUT)
- except:
+ except Exception:
return
for index, cookie in enumerate(cj):
self.rtime = time.time() - t1
self.is_connected = True
+ return ids
- def init_tcp(self, host, port, proxy=None, use_ssl=True):
- self.init_server(host, port, proxy, use_ssl)
+ def start_tcp(self):
- global proxy_modes
- self.connection_msg = "%s:%d"%(self.host,self.port)
- if self.proxy is None:
- s = socket.socket( socket.AF_INET, socket.SOCK_STREAM )
- else:
- self.connection_msg += " using proxy %s:%s:%s"%(self.proxy.get('mode'), self.proxy.get('host'), self.proxy.get('port'))
- import socks
- s = socks.socksocket()
- s.setproxy(proxy_modes.index(self.proxy["mode"]) + 1, self.proxy["host"], int(self.proxy["port"]) )
+ self.connection_msg = self.host + ':%d' % self.port
+
+ if self.proxy is not None:
+
+ socks.setdefaultproxy(self.proxy_mode, self.proxy["host"], int(self.proxy["port"]))
+ socket.socket = socks.socksocket
+ # prevent dns leaks, see http://stackoverflow.com/questions/13184205/dns-over-proxy
+ def getaddrinfo(*args):
+ return [(socket.AF_INET, socket.SOCK_STREAM, 6, '', (args[0], args[1]))]
+ socket.getaddrinfo = getaddrinfo
if self.use_ssl:
- s = ssl.wrap_socket(s, ssl_version=ssl.PROTOCOL_SSLv23, do_handshake_on_connect=True)
-
- s.settimeout(2)
- s.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
+ cert_path = os.path.join( self.config.path, 'certs', self.host)
+
+ if not os.path.exists(cert_path):
+ is_new = True
+ # get server certificate.
+ # Do not use ssl.get_server_certificate because it does not work with proxy
+ try:
+ l = socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM)
+ except socket.gaierror:
+ print_error("error: cannot resolve", self.host)
+ return
+
+ for res in l:
+ try:
+ s = socket.socket( res[0], socket.SOCK_STREAM )
+ s.connect(res[4])
+ except:
+ s = None
+ continue
+
+ try:
+ s = ssl.wrap_socket(s, ssl_version=ssl.PROTOCOL_SSLv3, cert_reqs=ssl.CERT_NONE, ca_certs=None)
+ except ssl.SSLError, e:
+ print_error("SSL error retrieving SSL certificate:", self.host, e)
+ s = None
+
+ break
+
+ if s is None:
+ return
+
+ dercert = s.getpeercert(True)
+ s.close()
+ cert = ssl.DER_cert_to_PEM_cert(dercert)
+ # workaround android bug
+ cert = re.sub("([^\n])-----END CERTIFICATE-----","\\1\n-----END CERTIFICATE-----",cert)
+ temporary_path = cert_path + '.temp'
+ with open(temporary_path,"w") as f:
+ f.write(cert)
+
+ else:
+ is_new = False
try:
- s.connect(( self.host.encode('ascii'), int(self.port)))
- except:
- #traceback.print_exc(file=sys.stdout)
- print_error("failed to connect", host, port)
- self.is_connected = False
- self.s = None
+ addrinfo = socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM)
+ except socket.gaierror:
+ print_error("error: cannot resolve", self.host)
+ return
+
+ for res in addrinfo:
+ try:
+ s = socket.socket( res[0], socket.SOCK_STREAM )
+ s.settimeout(2)
+ s.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
+ s.connect(res[4])
+ except:
+ s = None
+ continue
+ break
+
+ if s is None:
+ print_error("failed to connect", self.host, self.port)
return
+ if self.use_ssl:
+ try:
+ s = ssl.wrap_socket(s,
+ ssl_version=ssl.PROTOCOL_SSLv3,
+ cert_reqs=ssl.CERT_REQUIRED,
+ ca_certs= (temporary_path if is_new else cert_path),
+ do_handshake_on_connect=True)
+ except ssl.SSLError, e:
+ print_error("SSL error:", self.host, e)
+ if e.errno != 1:
+ return
+ if is_new:
+ rej = cert_path + '.rej'
+ if os.path.exists(rej):
+ os.unlink(rej)
+ os.rename(temporary_path, rej)
+ else:
+ with open(cert_path) as f:
+ cert = f.read()
+ try:
+ x = x509.X509()
+ x.parse(cert)
+ x.slow_parse()
+ except:
+ traceback.print_exc(file=sys.stdout)
+ print_error("wrong certificate", self.host)
+ return
+ try:
+ x.check_date()
+ except:
+ print_error("certificate has expired:", cert_path)
+ os.unlink(cert_path)
+ return
+ print_error("wrong certificate", self.host)
+ return
+ except Exception:
+ print_error("wrap_socket failed", self.host)
+ traceback.print_exc(file=sys.stdout)
+ return
+
+ if is_new:
+ print_error("saving certificate for", self.host)
+ os.rename(temporary_path, cert_path)
+
s.settimeout(60)
self.s = s
self.is_connected = True
+ print_error("connected to", self.host, self.port)
+
def run_tcp(self):
try:
except ssl.SSLError:
timeout = True
except socket.error, err:
- if err.errno in [11, 10035]:
+ if err.errno == 60:
+ timeout = True
+ elif err.errno in [11, 10035]:
print_error("socket errno", err.errno)
time.sleep(0.1)
continue
c = json.loads(c)
self.queue_json_response(c)
- except:
+ except Exception:
traceback.print_exc(file=sys.stdout)
self.is_connected = False
request = json.dumps( { 'id':self.message_id, 'method':method, 'params':params } )
self.unanswered_requests[self.message_id] = method, params, callback
ids.append(self.message_id)
- # uncomment to debug
- # print "-->", request
+ if self.debug:
+ print "-->", request
self.message_id += 1
out += request + '\n'
while out:
- def __init__(self, config=None):
- #self.server = random.choice(filter_protocol(DEFAULT_SERVERS, 's'))
- self.proxy = None
-
- if config is None:
- from simple_config import SimpleConfig
- config = SimpleConfig()
-
- threading.Thread.__init__(self)
- self.daemon = True
- self.config = config
- self.connect_event = threading.Event()
-
- self.subscriptions = {}
- self.lock = threading.Lock()
-
- self.servers = {} # actual list from IRC
- self.rtime = 0
- self.bytes_received = 0
- self.is_connected = False
-
- # init with None server, in case we are offline
- self.init_server(None, None)
-
-
- def init_interface(self):
- if self.config.get('server'):
- self.init_with_server(self.config)
- else:
- if self.config.get('auto_cycle') is None:
- self.config.set_key('auto_cycle', True, False)
+ def start_interface(self):
- if not self.is_connected:
- self.connect_event.set()
- return
+ if self.protocol in 'st':
+ self.start_tcp()
+ elif self.protocol in 'gh':
+ self.start_http()
self.connect_event.set()
- def init_with_server(self, config):
-
- s = config.get('server')
- host, port, protocol = s.split(':')
- port = int(port)
-
- self.protocol = protocol
- proxy = self.parse_proxy_options(config.get('proxy'))
- self.server = host + ':%d:%s'%(port, protocol)
-
- #print protocol, host, port
- if protocol in 'st':
- self.init_tcp(host, port, proxy, use_ssl=(protocol=='s'))
- elif protocol in 'gh':
- self.init_http(host, port, proxy, use_ssl=(protocol=='g'))
- else:
- raise BaseException('Unknown protocol: %s'%protocol)
-
def stop_subscriptions(self):
for callback in self.subscriptions.keys():
self.subscriptions[callback].append(message)
if not self.is_connected:
+ print_error("interface: trying to send while not connected")
return
if self.protocol in 'st':
self.s.shutdown(socket.SHUT_RDWR)
self.s.close()
+ self.is_connected = False
+
def is_up_to_date(self):
return self.unanswered_requests == {}
+
+ def start(self, queue = None, wait = False):
+ if not self.server:
+ return
+ self.queue = queue if queue else Queue.Queue()
+ threading.Thread.start(self)
+ if wait:
+ self.connect_event.wait()
+
+
+ def run(self):
+ self.start_interface()
+ if self.is_connected:
+ self.send([('server.version', [ELECTRUM_VERSION, PROTOCOL_VERSION])], self.on_version)
+ self.change_status()
+ self.run_tcp() if self.protocol in 'st' else self.run_http()
+ self.change_status()
+
+
+ def change_status(self):
+ #print "change status", self.server, self.is_connected
+ self.queue.put(self)
+
+
def synchronous_get(self, requests, timeout=100000000):
- # todo: use generators, unanswered_requests should be a list of arrays...
queue = Queue.Queue()
ids = self.send(requests, lambda i,r: queue.put(r))
id2 = ids[:]
return out
- def start(self, queue):
- self.queue = queue
- threading.Thread.start(self)
- def run(self):
- self.init_interface()
- if self.is_connected:
- self.send([('server.version', [ELECTRUM_VERSION, PROTOCOL_VERSION])], self.on_version)
- self.change_status()
- self.run_tcp() if self.protocol in 'st' else self.run_http()
- self.change_status()
-
+def check_cert(host, cert):
+ try:
+ x = x509.X509()
+ x.parse(cert)
+ x.slow_parse()
+ except:
+ traceback.print_exc(file=sys.stdout)
+ return
- def change_status(self):
- #print "change status", self.server, self.is_connected
- self.queue.put(self)
+ try:
+ x.check_date()
+ expired = False
+ except:
+ expired = True
+
+ m = "host: %s\n"%host
+ m += "has_expired: %s\n"% expired
+ print_msg(m)
+
+
+def test_certificates():
+ config = SimpleConfig()
+ mydir = os.path.join(config.path, "certs")
+ certs = os.listdir(mydir)
+ for c in certs:
+ print c
+ p = os.path.join(mydir,c)
+ with open(p) as f:
+ cert = f.read()
+ check_cert(c, cert)
+if __name__ == "__main__":
+ test_certificates()