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murder_client.py
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murder_client.py
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# Copyright 2010 Twitter, Inc.
# Copyright 2010 Larry Gadea <lg@twitter.com>
# Copyright 2010 Matt Freels <freels@twitter.com>
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Usage: python murder_client.py peer/seed out.torrent OUT.OUT 127.0.0.1
# last parameter is the local ip address, normally 10.x.x.x
import warnings
warnings.filterwarnings('ignore', category=DeprecationWarning)
from BitTornado import PSYCO
if PSYCO.psyco:
try:
import psyco
assert psyco.__version__ >= 0x010100f0
psyco.full()
except:
pass
from BitTornado.download_bt1 import BT1Download, defaults, parse_params, get_usage, get_response
from BitTornado.RawServer import RawServer, UPnP_ERROR
from random import seed
from socket import error as socketerror
from BitTornado.bencode import bencode
from BitTornado.natpunch import UPnP_test
from threading import Event
from os.path import abspath
from sys import argv, stdout
import sys
import os
import threading
from sha import sha
from time import strftime
from BitTornado.clock import clock
from BitTornado import createPeerID, version
from BitTornado.ConfigDir import ConfigDir
assert sys.version >= '2', "Install Python 2.0 or greater"
try:
True
except:
True = 1
False = 0
doneFlag = None
isPeer = False
def ok_close_now():
doneFlag.set()
def hours(n):
if n == 0:
return 'complete!'
try:
n = int(n)
assert n >= 0 and n < 5184000 # 60 days
except:
return '<unknown>'
m, s = divmod(n, 60)
h, m = divmod(m, 60)
if h > 0:
return '%d hour %02d min %02d sec' % (h, m, s)
else:
return '%d min %02d sec' % (m, s)
class HeadlessDisplayer:
def __init__(self):
self.done = False
self.file = ''
self.percentDone = ''
self.timeEst = ''
self.downloadTo = ''
self.downRate = ''
self.upRate = ''
self.shareRating = ''
self.seedStatus = ''
self.peerStatus = ''
self.errors = []
self.last_update_time = -1
def finished(self):
global doneFlag
self.done = True
self.percentDone = '100'
self.timeEst = 'Download Succeeded!'
self.downRate = ''
#self.display()
global isPeer
print "done and done"
if isPeer:
if os.fork():
os._exit(0)
return
os.setsid()
if os.fork():
os._exit(0)
return
os.close(0)
os.close(1)
os.close(2)
t = threading.Timer(30.0, ok_close_now)
t.start()
def failed(self):
self.done = True
self.percentDone = '0'
self.timeEst = 'Download Failed!'
self.downRate = ''
global doneFlag
doneFlag.set()
#self.display()
def error(self, errormsg):
#self.errors.append(errormsg)
self.display()
global doneFlag
print errormsg
doneFlag.set()
def display(self, dpflag = Event(), fractionDone = None, timeEst = None,
downRate = None, upRate = None, activity = None,
statistics = None, **kws):
if self.last_update_time + 0.1 > clock() and fractionDone not in (0.0, 1.0) and activity is not None:
return
self.last_update_time = clock()
if fractionDone is not None:
self.percentDone = str(float(int(fractionDone * 1000)) / 10)
if timeEst is not None:
self.timeEst = hours(timeEst)
if activity is not None and not self.done:
self.timeEst = activity
if downRate is not None:
self.downRate = '%.1f kB/s' % (float(downRate) / (1 << 10))
if upRate is not None:
self.upRate = '%.1f kB/s' % (float(upRate) / (1 << 10))
if statistics is not None:
if (statistics.shareRating < 0) or (statistics.shareRating > 100):
self.shareRating = 'oo (%.1f MB up / %.1f MB down)' % (float(statistics.upTotal) / (1<<20), float(statistics.downTotal) / (1<<20))
else:
self.shareRating = '%.3f (%.1f MB up / %.1f MB down)' % (statistics.shareRating, float(statistics.upTotal) / (1<<20), float(statistics.downTotal) / (1<<20))
if not self.done:
self.seedStatus = '%d seen now, plus %.3f distributed copies' % (statistics.numSeeds,0.001*int(1000*statistics.numCopies))
else:
self.seedStatus = '%d seen recently, plus %.3f distributed copies' % (statistics.numOldSeeds,0.001*int(1000*statistics.numCopies))
self.peerStatus = '%d seen now, %.1f%% done at %.1f kB/s' % (statistics.numPeers,statistics.percentDone,float(statistics.torrentRate) / (1 << 10))
#print '\n\n\n\n'
for err in self.errors:
print 'ERROR:\n' + err + '\n'
#print 'saving: ', self.file
#print 'percent done: ', self.percentDone
#print 'time left: ', self.timeEst
#print 'download to: ', self.downloadTo
#print 'download rate: ', self.downRate
#print 'upload rate: ', self.upRate
#print 'share rating: ', self.shareRating
#print 'seed status: ', self.seedStatus
#print 'peer status: ', self.peerStatus
#stdout.flush()
dpflag.set()
def chooseFile(self, default, size, saveas, dir):
self.file = '%s (%.1f MB)' % (default, float(size) / (1 << 20))
if saveas != '':
default = saveas
self.downloadTo = abspath(default)
return default
def newpath(self, path):
self.downloadTo = path
def run(params):
cols = 80
h = HeadlessDisplayer()
while 1:
configdir = ConfigDir('downloadheadless')
defaultsToIgnore = ['responsefile', 'url', 'priority']
configdir.setDefaults(defaults,defaultsToIgnore)
configdefaults = configdir.loadConfig()
defaults.append(('save_options',0,
"whether to save the current options as the new default configuration " +
"(only for btdownloadheadless.py)"))
try:
config = parse_params(params, configdefaults)
except ValueError, e:
print 'error: ' + str(e) + '\nrun with no args for parameter explanations'
break
if not config:
print get_usage(defaults, 80, configdefaults)
break
if config['save_options']:
configdir.saveConfig(config)
configdir.deleteOldCacheData(config['expire_cache_data'])
myid = createPeerID()
seed(myid)
global doneFlag
doneFlag = Event()
def disp_exception(text):
print text
rawserver = RawServer(doneFlag, config['timeout_check_interval'],
config['timeout'], ipv6_enable = config['ipv6_enabled'],
failfunc = h.failed, errorfunc = disp_exception)
upnp_type = UPnP_test(config['upnp_nat_access'])
while True:
try:
listen_port = rawserver.find_and_bind(config['minport'], config['maxport'],
config['bind'], ipv6_socket_style = config['ipv6_binds_v4'],
upnp = upnp_type, randomizer = config['random_port'])
break
except socketerror, e:
if upnp_type and e == UPnP_ERROR:
print 'WARNING: COULD NOT FORWARD VIA UPnP'
upnp_type = 0
continue
print "error: Couldn't listen - " + str(e)
h.failed()
return
response = get_response(config['responsefile'], config['url'], h.error)
if not response:
break
infohash = sha(bencode(response['info'])).digest()
dow = BT1Download(h.display, h.finished, h.error, disp_exception, doneFlag,
config, response, infohash, myid, rawserver, listen_port,
configdir)
if not dow.saveAs(h.chooseFile, h.newpath):
break
if not dow.initFiles(old_style = True):
break
if not dow.startEngine():
dow.shutdown()
break
dow.startRerequester()
dow.autoStats()
if not dow.am_I_finished():
h.display(activity = 'connecting to peers')
rawserver.listen_forever(dow.getPortHandler())
h.display(activity = 'shutting down')
dow.shutdown()
break
try:
rawserver.shutdown()
except:
pass
if not h.done:
h.failed()
if __name__ == '__main__':
if len(argv) != 5:
print "Incorrect number of arguments"
print
print """Usage:
python murder_client.py peer/seed out.torrent OUT.OUT 127.0.0.1
The last parameter is the local ip address, normally 10.x.x.x
"""
sys.exit(1)
argv = ["--responsefile", sys.argv[2],
"--saveas", sys.argv[3],
"--ip", sys.argv[4]]
isPeer = sys.argv[1] == "peer"
run(argv[1:])