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# Source Generated with Decompyle++ # File: in.pyo (Python 2.4) from zurllib import urlopen from urlparse import urljoin from btformats import check_message from Choker import Choker from Storage import Storage from StorageWrapper import StorageWrapper from Uploader import Upload from Downloader import Downloader from Connecter import Connecter from Encrypter import Encoder from RawServer import RawServer from Rerequester import Rerequester from DownloaderFeedback import DownloaderFeedback from RateMeasure import RateMeasure from CurrentRateMeasure import Measure from PiecePicker import PiecePicker from bencode import bencode, bdecode from __init__ import version from binascii import b2a_hex from sha import sha from os import path, makedirs from parseargs import parseargs, formatDefinitions from socket import error as socketerror from random import seed from threading import Thread, Event from time import time try: from os import getpid except ImportError: def getpid(): return 1 defaults = [ ('max_uploads', 7, 'the maximum number of uploads to allow at once.'), ('keepalive_interval', 120.0, 'number of seconds to pause between sending keepalives'), ('download_slice_size', 2 ** 14, 'How many bytes to query for per request.'), ('request_backlog', 5, 'how many requests to keep in a single pipe at once.'), ('max_message_length', 2 ** 23, "maximum length prefix encoding you'll accept over the wire - larger values get the connection dropped."), ('ip', '', 'ip to report you have to the tracker.'), ('minport', 6881, 'minimum port to listen on, counts up if unavailable'), ('maxport', 6999, 'maximum port to listen on'), ('responsefile', '', 'file the server response was stored in, alternative to url'), ('url', '', 'url to get file from, alternative to responsefile'), ('saveas', '', 'local file name to save the file as, null indicates query user'), ('timeout', 300.0, 'time to wait between closing sockets which nothing has been received on'), ('timeout_check_interval', 60.0, 'time to wait between checking if any connections have timed out'), ('max_slice_length', 2 ** 17, 'maximum length slice to send to peers, larger requests are ignored'), ('max_rate_period', 20.0, 'maximum amount of time to guess the current rate estimate represents'), ('bind', '', 'ip to bind to locally'), ('upload_rate_fudge', 5.0, 'time equivalent of writing to kernel-level TCP buffer, for rate adjustment'), ('display_interval', 0.5, 'time between updates of displayed information'), ('rerequest_interval', 5 * 60, 'time to wait between requesting more peers'), ('min_peers', 20, 'minimum number of peers to not do rerequesting'), ('http_timeout', 60, 'number of seconds to wait before assuming that an http connection has timed out'), ('max_initiate', 35, 'number of peers at which to stop initiating new connections'), ('max_allow_in', 55, 'maximum number of connections to allow, after this new incoming connections will be immediately closed'), ('check_hashes', 1, 'whether to check hashes on disk'), ('max_upload_rate', 0, 'maximum kB/s to upload at, 0 means no limit'), ('snub_time', 30.0, "seconds to wait for data to come in over a connection before assuming it's semi-permanently choked"), ('spew', 0, 'whether to display diagnostic info to stdout'), ('rarest_first_cutoff', 4, 'number of downloads at which to switch from random to rarest first'), ('min_uploads', 4, 'the number of uploads to fill out to with extra optimistic unchokes'), ('report_hash_failures', 0, "whether to inform the user that hash failures occur. They're non-fatal.")] def download(params, filefunc, statusfunc, finfunc, errorfunc, doneflag, cols, pathFunc = None, paramfunc = None, spewflag = Event()): if len(params) == 0: errorfunc('arguments are -\n' + formatDefinitions(defaults, cols)) return None try: (config, args) = parseargs(params, defaults, 0, 1) if args: if config.get('responsefile', None) == None: raise ValueError, 'must have responsefile as arg or parameter, not both' if path.isfile(args[0]): config['responsefile'] = args[0] else: config['url'] = args[0] if config['responsefile'] == '' == config['url'] == '': raise ValueError, 'need responsefile or url' except ValueError: e = None errorfunc('error: ' + str(e) + '\nrun with no args for parameter explanations') return None try: if config['responsefile'] != '': h = open(config['responsefile'], 'rb') else: h = urlopen(config['url']) response = h.read() h.close() except IOError: e = None if config['responsefile'] != '' and config['responsefile'].find('Temporary Internet Files') != -1: errorfunc("BitTorrent was passed a filename that doesn't exist. " + 'Either clear your Temporary Internet Files or right-click the link ' + 'and save the .torrent to disk first.') else: errorfunc('problem getting response info - ' + str(e)) return None try: response = bdecode(response) check_message(response) except ValueError: e = None errorfunc('got bad file info - ' + str(e)) return None try: def make(f, forcedir = False): if not forcedir: f = path.split(f)[0] if f != '' and not path.exists(f): makedirs(f) info = response['info'] if info.has_key('length'): file_length = info['length'] file = filefunc(info['name'], file_length, config['saveas'], False) if file is None: return None make(file) files = [ (file, file_length)] else: file_length = 0 for x in info['files']: file_length += x['length'] file = filefunc(info['name'], file_length, config['saveas'], True) if file is None: return None existing = 0 if path.exists(file): for x in info['files']: if path.exists(path.join(file, x['path'][0])): existing = 1 continue if not existing: file = path.join(file, info['name']) make(file, True) if pathFunc != None: pathFunc(file) files = [] for x in info['files']: n = file for i in x['path']: n = path.join(n, i) files.append((n, x['length'])) make(n) except OSError: e = None errorfunc("Couldn't allocate dir - " + str(e)) return None finflag = Event() ann = [ None] myid = 'M' + version.replace('.', '-') myid = myid + '-' * (8 - len(myid)) + b2a_hex(sha(repr(time()) + ' ' + str(getpid())).digest()[-6:]) seed(myid) pieces = [ info['pieces'][x:x + 20] for x in xrange(0, len(info['pieces']), 20) ] def failed(reason, errorfunc = errorfunc, doneflag = doneflag): doneflag.set() if reason is not None: errorfunc(reason) rawserver = RawServer(doneflag, config['timeout_check_interval'], config['timeout'], errorfunc = errorfunc, maxconnects = config['max_allow_in']) try: try: storage = Storage(files, open, path.exists, path.getsize) except IOError: [] e = [] [] errorfunc('trouble accessing files - ' + str(e)) return None except: [] def finished(finfunc = finfunc, finflag = finflag, ann = ann, storage = storage, errorfunc = errorfunc): finflag.set() try: storage.set_readonly() except (IOError, OSError): e = None errorfunc('trouble setting readonly at end - ' + str(e)) if ann[0] is not None: ann[0](1) finfunc() rm = [ None] def data_flunked(amount, rm = rm, errorfunc = errorfunc, report_hash_failures = config['report_hash_failures']): if rm[0] is not None: rm[0](amount) if report_hash_failures: errorfunc('a piece failed hash check, re-downloading it') storagewrapper = StorageWrapper(storage, config['download_slice_size'], pieces, info['piece length'], finished, failed, statusfunc, doneflag, config['check_hashes'], data_flunked) except ValueError: [] e = [] [] failed('bad data - ' + str(e)) except IOError: [] e = [] failed('IOError - ' + str(e)) except: [] e = 'maxport less than minport - no ports to check' for listen_port in xrange(config['minport'], config['maxport'] + 1): try: rawserver.bind(listen_port, config['bind']) continue except socketerror: None if doneflag.isSet() else [] e = None if doneflag.isSet() else [] continue else: return None choker = Choker(config['max_uploads'], rawserver.add_task, finflag.isSet, config['min_uploads']) upmeasure = Measure(config['max_rate_period'], config['upload_rate_fudge']) downmeasure = Measure(config['max_rate_period']) def make_upload(connection, choker = choker, storagewrapper = storagewrapper, max_slice_length = config['max_slice_length'], max_rate_period = config['max_rate_period'], fudge = config['upload_rate_fudge']): return Upload(connection, choker, storagewrapper, max_slice_length, max_rate_period, fudge) ratemeasure = RateMeasure(storagewrapper.get_amount_left()) rm[0] = ratemeasure.data_rejected picker = PiecePicker(len(pieces), config['rarest_first_cutoff']) for i in xrange(len(pieces)): if storagewrapper.do_I_have(i): picker.complete(i) continue None if doneflag.isSet() else []<EXCEPTION MATCH>socketerror downloader = Downloader(storagewrapper, picker, config['request_backlog'], config['max_rate_period'], len(pieces), downmeasure, config['snub_time'], ratemeasure.data_came_in) connecter = Connecter(make_upload, downloader, choker, len(pieces), upmeasure, config['max_upload_rate'] * 1024, rawserver.add_task) infohash = sha(bencode(info)).digest() encoder = Encoder(connecter, rawserver, myid, config['max_message_length'], rawserver.add_task, config['keepalive_interval'], infohash, config['max_initiate']) rerequest = Rerequester(response['announce'], config['rerequest_interval'], rawserver.add_task, connecter.how_many_connections, config['min_peers'], encoder.start_connection, rawserver.add_task, storagewrapper.get_amount_left, upmeasure.get_total, downmeasure.get_total, listen_port, config['ip'], myid, infohash, config['http_timeout'], errorfunc, config['max_initiate'], doneflag, upmeasure.get_rate, downmeasure.get_rate, encoder.ever_got_incoming) DownloaderFeedback(choker, rawserver.add_task, statusfunc, upmeasure.get_rate, downmeasure.get_rate, upmeasure.get_total, downmeasure.get_total, ratemeasure.get_time_left, ratemeasure.get_size_left, file_length, finflag, config['display_interval'], spewflag) if paramfunc: paramfunc({ 'max_upload_rate': connecter.change_max_upload_rate, 'max_uploads': choker.change_max_uploads, 'listen_port': listen_port, 'peer_id': myid, 'info_hash': infohash, 'start_connection': encoder._start_connection }) statusfunc({ 'activity': 'connecting to peers' }) ann[0] = rerequest.announce rerequest.begin() rawserver.listen_forever(encoder) storage.close() rerequest.announce(2)