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floppbox.py
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floppbox.py
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#!/usr/bin/python
#-*-coding:utf-8-*-
import socket, select, sys, signal, os, uuid, time, math, logging, ConfigParser, gui, job, floppboxIO
from job import JobManager
class FloppBox:
def __init__(self,group,groupfolder,configfolder,history = False):
self.cfg = self.loadConfig(configfolder,group)
self.rootfolder = os.getcwd()
self.logger = logging.getLogger(__name__)
# Variablen
self.iplist = []
self.myUUID = str(uuid.uuid1())
# Netzwerkkonfig
self.HOST = ""
self.UDP_PORT = 5555
self.TCP_PORT = self.cfg["Network"]["tcpport"]
self.TIMEOUT = self.cfg["Network"]["timeout"]
self.CHUNK_SIZE = self.cfg["Network"]["chunksize"]
job.Job.CHUNK_SIZE = self.CHUNK_SIZE
#Broadcast Setting
self.lastCast = 0
self.BCAST_INTERVALL = self.cfg["Network"]["broadcastintervall"]
self.castIntro = "HELLO %s" % group
self.castText = "%s %s %s" % (self.castIntro, self.TCP_PORT, self.myUUID)
# Init
self.jManager = JobManager(self.rootfolder, group, self.CHUNK_SIZE,self.cfg['Misc']['history'])
self.server = self.getServer(self.HOST, self.TCP_PORT)
self.broadcaster = self.getBroadcaster(self.HOST, self.UDP_PORT)
self.broadcaster.sendto(self.castText, ("<broadcast>", self.UDP_PORT))
self.logger.info("Floppbox initialisiert")
def loadConfig(self,folder,group):
configfile = folder+"/."+group+".cfg"
config = ConfigParser.ConfigParser()
if not os.path.isfile(configfile):
createDefaultConfig(configfile,{})
config.read(configfile)
return self.config2Dict(config)
def config2Dict(self,config):
ret = {}
for section in config.sections():
temp = {}
for option in config.options(section):
try:
if section == 'Network':
temp[option] = config.getint(section, option)
elif section == 'Misc' and option == 'history':
temp[option] = config.getboolean(section, option)
else:
temp[option] = config.get(section,option)
except:
self.logger.critical("exception on %s!" % option)
temp[option] = None
ret[section] = temp
return ret
def getServer(self,HOST, port):
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
server.bind((HOST,port))
server.listen(1)
self.logger.debug("TCP-Server gestartet")
return server
def getBroadcaster(self,HOST, port):
broadcaster = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
broadcaster.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR,1)
broadcaster.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST,1)
broadcaster.setblocking(0)
broadcaster.settimeout(float(self.BCAST_INTERVALL)/10.0)
broadcaster.bind((HOST,port))
self.logger.debug("UDP-Server gestartet")
return broadcaster
def stopTimeouts(self):
if self.broadcaster and self.broadcaster.gettimeout() > float(self.BCAST_INTERVALL)/10.0:
self.broadcaster.settimeout(float(self.BCAST_INTERVALL)/10.0)
def closeAll(self):
if self.jManager.histrory:
self.jManager.closeAllSockets()
self.jManager.saveFilelist()
if self.server:
self.server.shutdown(socket.SHUT_RDWR)
self.server.close()
if self.broadcaster:
self.broadcaster.close()
self.logger.debug("FLOPPBOX beendet")
print "****FLOPPBOX**** bye"
# sonst interrupted system call in sock.accept
def findOthers(self):
try:
data = self.broadcaster.recvfrom(self.CHUNK_SIZE)
if data[0].startswith(self.castIntro) and data[0] != self.castText:
port = data[0].split(" ")[2]
self.logger.info("Peer (%s,%s) gefunden"%data[1])
peerIP = (data[1][0],int(port))
if peerIP and peerIP not in self.iplist:
self.iplist.append(peerIP)
self.logger.debug("%s Peer in IP-Liste"%len(self.iplist))
except socket.error:
self.logger.debug("Keine Peers gefunden")
def waitForBroadcasts(self):
self.broadcaster.settimeout(self.BCAST_INTERVALL)
self.logger.debug("Warte auf Peers, Blocking, %s Sekunden Timeout" % self.BCAST_INTERVALL)
try:
self.findOthers()
except:
self.broadcaster.setblocking(False)
self.broadcaster.settimeout(0.1)
def main(self):
try:
self.jManager.prepareJobs(self.iplist,self.TCP_PORT)
readSockets = self.jManager.getRList()+[self.server]
writeSockets = self.jManager.getWList()+[(self.broadcaster)]
self.broadcaster.setblocking(False)
r, w, oob = select.select(readSockets,writeSockets ,[])
for sock in r+w:
try:
if sock == self.broadcaster:
self.findOthers()
if math.fabs(self.lastCast - time.time()) > self.BCAST_INTERVALL or self.jManager.hasChanged():
self.lastCast = time.time()
self.broadcaster.sendto(self.castText, ("<broadcast>", self.UDP_PORT))
self.logger.info("Sende Broadcast")
elif sock is self.server:
peer, addr = self.server.accept()
self.jManager.addUploadJob(peer)
self.logger.debug("Von Adresse %s:%s wurde Verbindung aufgebaut" % addr)
else:
self.jManager.jobben(sock)
except socket.error, e:
if sock == self.server:
self.logger.critical("Server-Socket Exception: %s" % e)
elif sock == self.broadcaster:
self.logger.info("Broadcast nicht gesendet o_O" % e)
elif self.jManager.jobDict.has_key(sock):
self.logger.warning("Job-Socket Exception %s" % e)
self.jManager.kill(sock)
# if len(self.iplist) == 0 and not self.jManager.hasTasks():
# self.logger.debug("Warte auf Peers")
# self.waitForBroadcasts()
except select.error, e:
self.logger.critical("select.error: %s" % str(e))
def usage():
print '''
################################################################
FloppBox FileSynchronization Tool
################################################################
Floppbox.py <Groupname> [-config] [-f] [-debug]
Parameter
-config : Öffnet ein grafisches Tool zur
zur Konfiguration der FloppBox
-f : Erstellt einen Ordner mit dem gewählten
Gruppennamen, falls dieser nicht exisitiert
-debug : Detailliertes Logfile mit Debuginformationen
Weitere Hinweise:
Es ist darauf zu achten, dass ein Ordner mit
dem gewählten Gruppennamen existiert
################################################################
Autoren: Christian Caspers, Steven Dostert, Tobias Lehwalder
################################################################
'''
def createDefaultConfig(path,opts):
config = ConfigParser.ConfigParser()
config.add_section('Network')
config.set('Network', 'tcpport', '1111' if not opts.has_key('tcpport') else opts['tcpport'])
config.set('Network', 'timeout', '10' if not opts.has_key('timeout') else opts['timeout'])
config.set('Network', 'chunksize', '8192' if not opts.has_key('chunksize') else opts['chunksize'])
config.set('Network', 'broadcastintervall','10' if not opts.has_key('broadcastintervall') else opts['broadcastintervall'])
config.add_section('Misc')
config.set('Misc', 'history', False if not opts.has_key('history') else opts['history'])
with open(path, 'wb') as configfile:
config.write(configfile)
def exithandler(signum,frame):
global running
if myBox:
myBox.stopTimeouts()
running = False
if __name__ == "__main__":
myBox = None
running = True
signal.signal(signal.SIGINT, exithandler)
loglevel = logging.INFO
if(len(sys.argv[1]) < 2):
usage()
group = sys.argv[1]
configfolder = os.getcwd()
groupfolder = os.getcwd()+"/"+group
params = sys.argv[2:]
if not os.path.isdir(groupfolder):
if "-f" not in params:
usage()
sys.exit(1)
else:
os.mkdir(groupfolder)
if "-debug" in params:
loglevel = logging.DEBUG
if "-config" in params:
app = gui.configGUI.ConfigGUI(configfolder+"/."+group+".cfg")
app.mainloop()
if "-clear" in params:
if os.path.isfile(configfolder+"/."+group+".cfg"):
os.remove(configfolder+"/."+group+".cfg")
if os.path.isfile(configfolder+"/."+group+".list"):
os.remove(configfolder+"/."+group+".list")
if os.path.isfile(configfolder+"/"+group+".log"):
os.remove(configfolder+"/"+group+".log")
logfile = configfolder+"/"+group+".log"
logging.basicConfig(filename=logfile ,
filemode='a+',
format='%(asctime)s - %(name)s - %(funcName)s :: %(levelname)s - %(message)s',
level=loglevel)
logger = logging.getLogger(__name__)
floppboxIO.initLogger()
myBox = FloppBox(group,groupfolder,configfolder)
while running:
myBox.main()
myBox.closeAll()