citizenaspirant/PyBitmessage
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Make UPnP into a thread

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- UPnP is now a separate thread that will continue to setup UPnP
- shutdown waits for threads that shutdown correctly (Addresses
Bitmessage#549)
This commit is contained in:
mailchuck 2015-11-21 11:59:44 +01:00 committed by Peter Surda
parent cc848cdb65
commit c03c563a74
3 changed files with 100 additions and 74 deletions
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8
src/bitmessagemain.py
View File

@ -149,9 +149,6 @@ class Main:
# is the application already running? If yes then exit.
thisapp = singleton.singleinstance("", daemon)
import upnp
upnp.createPortMapping()
# get curses flag
curses = False
if '-c' in sys.argv:
@ -210,6 +207,11 @@ class Main:
singleListenerThread.setup(selfInitiatedConnections)
singleListenerThread.daemon = True # close the main program even if there are threads left
singleListenerThread.start()
if shared.safeConfigGetBoolean('bitmessagesettings','upnp'):
import upnp
upnpThread = upnp.uPnPThread()
upnpThread.start()
if daemon == False and shared.safeConfigGetBoolean('bitmessagesettings', 'daemon') == False:
if curses == False:

9
src/shared.py
View File

@ -384,8 +384,6 @@ def doCleanShutdown():
'Flushing inventory in memory out to disk. This should normally only take a second...'))
flushInventory()
import upnp
upnp.deletePortMapping()
# Verify that the objectProcessor has finished exiting. It should have incremented the
# shutdown variable from 1 to 2. This must finish before we command the sqlThread to exit.
while shutdown == 1:
@ -399,7 +397,12 @@ def doCleanShutdown():
# Wait long enough to guarantee that any running proof of work worker threads will check the
# shutdown variable and exit. If the main thread closes before they do then they won't stop.
time.sleep(.25)
time.sleep(.25)
for thread in threading.enumerate():
if thread.name == "uPnPThread" or "outgoingSynSender" in thread.name:
logger.debug("Waiting for thread %s", thread.name)
thread.join()
if safeConfigGetBoolean('bitmessagesettings','daemon'):
logger.info('Clean shutdown complete.')

157
src/upnp.py
View File

@ -1,45 +1,10 @@
# A simple upnp module to forward port for BitMessage
# Reference: http://mattscodecave.com/posts/using-python-and-upnp-to-forward-a-port
import socket
import httplib
from shared import config
routers = []
def searchRouter():
SSDP_ADDR = "239.255.255.250"
SSDP_PORT = 1900
SSDP_MX = 2
SSDP_ST = "urn:schemas-upnp-org:device:InternetGatewayDevice:1"
ssdpRequest = "M-SEARCH * HTTP/1.1\r\n" + \
"HOST: %s:%d\r\n" % (SSDP_ADDR, SSDP_PORT) + \
"MAN: \"ssdp:discover\"\r\n" + \
"MX: %d\r\n" % (SSDP_MX, ) + \
"ST: %s\r\n" % (SSDP_ST, ) + "\r\n"
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.sendto(ssdpRequest, (SSDP_ADDR, SSDP_PORT))
routers = []
sock.settimeout(0.5)
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 2)
sock.settimeout(2)
logger.debug("Sending UPnP query")
sock.sendto(ssdpRequest, (SSDP_ADDR, SSDP_PORT))
except:
logger.exception("UPnP sock failed")
try:
while True:
resp,(ip,port) = sock.recvfrom(1000)
if resp is None:
continue
routers.append(Router(resp, ip))
resp,(ip,port) = sock.recvfrom(1000)
except:pass
return routers
from struct import unpack, pack
import threading
import time
import shared
def createRequestXML(service, action, arguments=[]):
from xml.dom.minidom import Document
@ -98,6 +63,8 @@ class Router:
path = ""
address = None
routerPath = None
extPort = None
def __init__(self, ssdpResponse, address):
import urllib2
from xml.dom.minidom import parseString
@ -143,6 +110,7 @@ class Router:
pass
def AddPortMapping(self, externalPort, internalPort, internalClient, protocol, description, leaseDuration = 0, enabled = 1):
from debug import logger
resp = self.soapRequest('WANIPConnection:1', 'AddPortMapping', [
('NewExternalPort', str(externalPort)),
('NewProtocol', protocol),
@ -153,6 +121,7 @@ class Router:
('NewLeaseDuration', str(leaseDuration))
])
self.extPort = externalPort
logger.info("Successfully established UPnP mapping for %s:%i on external port %i", internalClient, internalPort, externalPort)
return resp
def DeletePortMapping(self, externalPort, protocol):
@ -191,38 +160,90 @@ class Router:
raise UPnPError(errinfo[0].childNodes[0].data)
return resp
def createPortMappingInternal(router):
from debug import logger
class uPnPThread(threading.Thread):
def __init__ (self):
threading.Thread.__init__(self, name="uPnPThread")
self.localPort = shared.config.getint('bitmessagesettings', 'port')
self.extPort = None
self.routers = []
self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 2)
self.sock.settimeout(10)
self.sendSleep = 60
def run(self):
from debug import logger
logger.debug("Starting UPnP thread")
lastSent = 0
while shared.shutdown == 0:
if time.time() - lastSent > self.sendSleep and len(self.routers) == 0:
self.sendSearchRouter()
lastSent = time.time()
try:
while shared.shutdown == 0:
resp,(ip,port) = self.sock.recvfrom(1000)
if resp is None:
continue
newRouter = Router(resp, ip)
for router in self.routers:
if router.location == newRouter.location:
break
else:
logger.debug("Found UPnP router at %s", ip)
self.routers.append(newRouter)
self.createPortMapping(newRouter)
break
except socket.timeout as e:
pass
except:
logger.error("Failure running UPnP router search.", exc_info=True)
for router in self.routers:
if router.extPort is None:
self.createPortMapping(router)
for router in self.routers:
if router.extPort is not None:
self.deletePortMapping(router)
logger.debug("UPnP thread done")
def sendSearchRouter(self):
from debug import logger
SSDP_ADDR = "239.255.255.250"
SSDP_PORT = 1900
SSDP_MX = 2
SSDP_ST = "urn:schemas-upnp-org:device:InternetGatewayDevice:1"
ssdpRequest = "M-SEARCH * HTTP/1.1\r\n" + \
"HOST: %s:%d\r\n" % (SSDP_ADDR, SSDP_PORT) + \
"MAN: \"ssdp:discover\"\r\n" + \
"MX: %d\r\n" % (SSDP_MX, ) + \
"ST: %s\r\n" % (SSDP_ST, ) + "\r\n"
for i in range(0, 50):
try:
routerIP, = unpack('>I', socket.inet_aton(router.address))
localIP = router.localAddress
localPort = shared.config.getint('bitmessagesettings', 'port')
if i == 0:
extPort = localPort # try same port first
else:
extPort = randint(32767, 65535)
logger.debug("Requesting UPnP mapping for %s:%i on external port %i", localIP, localPort, extPort)
router.AddPortMapping(extPort, localPort, localIP, 'TCP', 'BitMessage')
logger.info("Successfully established UPnP mapping for %s:%i on external port %i", localIP, localPort, extPort)
shared.extPort = extPort
break
except UPnPError:
logger.debug("UPnP error: ", exc_info=True)
logger.debug("Sending UPnP query")
self.sock.sendto(ssdpRequest, (SSDP_ADDR, SSDP_PORT))
except:
logger.exception("UPnP send query failed")
def createPortMapping():
from debug import logger
global routers
def createPortMapping(self, router):
from debug import logger
for i in range(50):
try:
routerIP, = unpack('>I', socket.inet_aton(router.address))
localIP = router.localAddress
if i == 0:
extPort = self.localPort # try same port first
else:
extPort = randint(32767, 65535)
logger.debug("Requesting UPnP mapping for %s:%i on external port %i", localIP, self.localPort, extPort)
router.AddPortMapping(extPort, self.localPort, localIP, 'TCP', 'BitMessage')
shared.extPort = extPort
break
except UPnPError:
logger.debug("UPnP error: ", exc_info=True)
def deletePortMapping(self, router):
router.DeletePortMapping(router.extPort, 'TCP')
routers = searchRouter()
logger.debug("Found %i UPnP routers", len(routers))
for router in routers:
createPortMappingInternal(router)
def deletePortMapping():
localPort = config.getint('bitmessagesettings', 'port')
for router in routers:
if hasattr(router, "extPort"):
router.DeletePortMapping(router.extPort, 'TCP')