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btdownloadcurses.py
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btdownloadcurses.py
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#!/usr/bin/env python
# The contents of this file are subject to the BitTorrent Open Source License
# Version 1.0 (the License). You may not copy or use this file, in either
# source code or executable form, except in compliance with the License. You
# may obtain a copy of the License at http://www.bittorrent.com/license/.
#
# Software distributed under the License is distributed on an AS IS basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
# Original version written by Henry 'Pi' James, modified by (at least)
# John Hoffman and Uoti Urpala
from __future__ import division
SPEW_SCROLL_RATE = 1
import sys
import os
import threading
from time import time, strftime
from BitTorrent.download import Feedback, Multitorrent
from BitTorrent.defaultargs import get_defaults
from BitTorrent.parseargs import parseargs, printHelp
from BitTorrent.zurllib import urlopen
from BitTorrent.bencode import bdecode
from BitTorrent.ConvertedMetainfo import ConvertedMetainfo
from BitTorrent import configfile
from BitTorrent import BTFailure
from BitTorrent import version
try:
import curses
import curses.panel
from curses.wrapper import wrapper as curses_wrapper
from signal import signal, SIGWINCH
except:
print 'Textmode GUI initialization failed, cannot proceed.'
print
print 'This download interface requires the standard Python module ' \
'"curses", which is unfortunately not available for the native ' \
'Windows port of Python. It is however available for the Cygwin ' \
'port of Python, running on all Win32 systems (www.cygwin.com).'
print
print 'You may still use "btdownloadheadless.py" to download.'
sys.exit(1)
def fmttime(n):
if n == 0:
return 'download 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)
return 'finishing in %d:%02d:%02d' % (h, m, s)
def fmtsize(n):
s = str(n)
size = s[-3:]
while len(s) > 3:
s = s[:-3]
size = '%s,%s' % (s[-3:], size)
if n > 999:
unit = ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB']
i = 1
while i + 1 < len(unit) and (n >> 10) >= 999:
i += 1
n >>= 10
n /= (1 << 10)
size = '%s (%.0f %s)' % (size, n, unit[i])
return size
class CursesDisplayer(object):
def __init__(self, scrwin, errlist, doneflag, reread_config):
self.scrwin = scrwin
self.errlist = errlist
self.doneflag = doneflag
signal(SIGWINCH, self.winch_handler)
self.changeflag = threading.Event()
self.done = False
self.reread_config = reread_config
self.activity = ''
self.status = ''
self.progress = ''
self.downRate = '---'
self.upRate = '---'
self.shareRating = ''
self.seedStatus = ''
self.peerStatus = ''
self.errors = []
self.file = ''
self.downloadTo = ''
self.fileSize = ''
self.numpieces = 0
self.spew_scroll_time = 0
self.spew_scroll_pos = 0
self._remake_window()
def set_torrent_values(self, name, path, size, numpieces):
self.file = name
self.downloadTo = path
self.fileSize = fmtsize(size)
self.numpieces = numpieces
self._remake_window()
def winch_handler(self, signum, stackframe):
self.changeflag.set()
curses.endwin()
self.scrwin.refresh()
self.scrwin = curses.newwin(0, 0, 0, 0)
self._remake_window()
def _remake_window(self):
self.scrh, self.scrw = self.scrwin.getmaxyx()
self.scrpan = curses.panel.new_panel(self.scrwin)
self.labelh, self.labelw, self.labely, self.labelx = 11, 9, 1, 2
self.labelwin = curses.newwin(self.labelh, self.labelw,
self.labely, self.labelx)
self.labelpan = curses.panel.new_panel(self.labelwin)
self.fieldh, self.fieldw, self.fieldy, self.fieldx = (
self.labelh, self.scrw-2 - self.labelw-3,
1, self.labelw+3)
self.fieldwin = curses.newwin(self.fieldh, self.fieldw,
self.fieldy, self.fieldx)
self.fieldwin.nodelay(1)
self.fieldpan = curses.panel.new_panel(self.fieldwin)
self.spewh, self.speww, self.spewy, self.spewx = (
self.scrh - self.labelh - 2, self.scrw - 3, 1 + self.labelh, 2)
self.spewwin = curses.newwin(self.spewh, self.speww,
self.spewy, self.spewx)
self.spewpan = curses.panel.new_panel(self.spewwin)
try:
self.scrwin.border(ord('|'),ord('|'),ord('-'),ord('-'),ord(' '),ord(' '),ord(' '),ord(' '))
except:
pass
self.labelwin.addstr(0, 0, 'file:')
self.labelwin.addstr(1, 0, 'size:')
self.labelwin.addstr(2, 0, 'dest:')
self.labelwin.addstr(3, 0, 'progress:')
self.labelwin.addstr(4, 0, 'status:')
self.labelwin.addstr(5, 0, 'dl speed:')
self.labelwin.addstr(6, 0, 'ul speed:')
self.labelwin.addstr(7, 0, 'sharing:')
self.labelwin.addstr(8, 0, 'seeds:')
self.labelwin.addstr(9, 0, 'peers:')
curses.panel.update_panels()
curses.doupdate()
self.changeflag.clear()
def finished(self):
self.done = True
self.downRate = '---'
self.display({'activity':'download succeeded', 'fractionDone':1})
def error(self, errormsg):
newerrmsg = strftime('[%H:%M:%S] ') + errormsg
self.errors.append(newerrmsg.split('\n')[0])
self.errlist.append(newerrmsg)
self.display({})
def display(self, statistics):
fractionDone = statistics.get('fractionDone')
activity = statistics.get('activity')
timeEst = statistics.get('timeEst')
downRate = statistics.get('downRate')
upRate = statistics.get('upRate')
spew = statistics.get('spew')
inchar = self.fieldwin.getch()
if inchar == 12: # ^L
self._remake_window()
elif inchar in (ord('q'),ord('Q')):
self.doneflag.set()
elif inchar in (ord('r'),ord('R')):
self.reread_config()
if timeEst is not None:
self.activity = fmttime(timeEst)
elif activity is not None:
self.activity = activity
if self.changeflag.isSet():
return
if fractionDone is not None:
blocknum = int(self.fieldw * fractionDone)
self.progress = blocknum * '#' + (self.fieldw - blocknum) * '_'
self.status = '%s (%.1f%%)' % (self.activity, fractionDone * 100)
if downRate is not None:
self.downRate = '%.1f KB/s' % (downRate / (1 << 10))
if upRate is not None:
self.upRate = '%.1f KB/s' % (upRate / (1 << 10))
downTotal = statistics.get('downTotal')
if downTotal is not None:
upTotal = statistics['upTotal']
if downTotal <= upTotal / 100:
self.shareRating = 'oo (%.1f MB up / %.1f MB down)' % (
upTotal / (1<<20), downTotal / (1<<20))
else:
self.shareRating = '%.3f (%.1f MB up / %.1f MB down)' % (
upTotal / downTotal, upTotal / (1<<20), downTotal / (1<<20))
numCopies = statistics['numCopies']
nextCopies = ', '.join(["%d:%.1f%%" % (a,int(b*1000)/10) for a,b in
zip(xrange(numCopies+1, 1000), statistics['numCopyList'])])
if not self.done:
self.seedStatus = '%d seen now, plus %d distributed copies ' \
'(%s)' % (statistics['numSeeds'],
statistics['numCopies'], nextCopies)
else:
self.seedStatus = '%d distributed copies (next: %s)' % (
statistics['numCopies'], nextCopies)
self.peerStatus = '%d seen now' % statistics['numPeers']
self.fieldwin.erase()
self.fieldwin.addnstr(0, 0, self.file, self.fieldw, curses.A_BOLD)
self.fieldwin.addnstr(1, 0, self.fileSize, self.fieldw)
self.fieldwin.addnstr(2, 0, self.downloadTo, self.fieldw)
if self.progress:
self.fieldwin.addnstr(3, 0, self.progress, self.fieldw, curses.A_BOLD)
self.fieldwin.addnstr(4, 0, self.status, self.fieldw)
self.fieldwin.addnstr(5, 0, self.downRate, self.fieldw)
self.fieldwin.addnstr(6, 0, self.upRate, self.fieldw)
self.fieldwin.addnstr(7, 0, self.shareRating, self.fieldw)
self.fieldwin.addnstr(8, 0, self.seedStatus, self.fieldw)
self.fieldwin.addnstr(9, 0, self.peerStatus, self.fieldw)
self.spewwin.erase()
if not spew:
errsize = self.spewh
if self.errors:
self.spewwin.addnstr(0, 0, "error(s):", self.speww, curses.A_BOLD)
errsize = len(self.errors)
displaysize = min(errsize, self.spewh)
displaytop = errsize - displaysize
for i in range(displaysize):
self.spewwin.addnstr(i, self.labelw, self.errors[displaytop + i],
self.speww-self.labelw-1, curses.A_BOLD)
else:
if self.errors:
self.spewwin.addnstr(0, 0, "error:", self.speww, curses.A_BOLD)
self.spewwin.addnstr(0, self.labelw, self.errors[-1],
self.speww-self.labelw-1, curses.A_BOLD)
self.spewwin.addnstr(2, 0, " # IP Upload Download Completed Speed", self.speww, curses.A_BOLD)
if self.spew_scroll_time + SPEW_SCROLL_RATE < time():
self.spew_scroll_time = time()
if len(spew) > self.spewh-5 or self.spew_scroll_pos > 0:
self.spew_scroll_pos += 1
if self.spew_scroll_pos > len(spew):
self.spew_scroll_pos = 0
for i in range(len(spew)):
spew[i]['lineno'] = i+1
spew.append({'lineno': None})
spew = spew[self.spew_scroll_pos:] + spew[:self.spew_scroll_pos]
for i in range(min(self.spewh - 5, len(spew))):
if not spew[i]['lineno']:
continue
self.spewwin.addnstr(i+3, 0, '%3d' % spew[i]['lineno'], 3)
self.spewwin.addnstr(i+3, 4, spew[i]['ip'], 15)
ul = spew[i]['upload']
if ul[1] > 100:
self.spewwin.addnstr(i+3, 20, '%6.0f KB/s' % (
ul[1] / 1000), 11)
self.spewwin.addnstr(i+3, 32, '-----', 5)
if ul[2]:
self.spewwin.addnstr(i+3, 33, 'I', 1)
if ul[3]:
self.spewwin.addnstr(i+3, 35, 'C', 1)
dl = spew[i]['download']
if dl[1] > 100:
self.spewwin.addnstr(i+3, 38, '%6.0f KB/s' % (
dl[1] / 1000), 11)
self.spewwin.addnstr(i+3, 50, '-------', 7)
if dl[2]:
self.spewwin.addnstr(i+3, 51, 'I', 1)
if dl[3]:
self.spewwin.addnstr(i+3, 53, 'C', 1)
if dl[4]:
self.spewwin.addnstr(i+3, 55, 'S', 1)
self.spewwin.addnstr(i+3, 58, '%5.1f%%' % (int(spew[i]['completed']*1000)/10), 6)
if spew[i]['speed'] is not None:
self.spewwin.addnstr(i+3, 64, '%5.0f KB/s' % (spew[i]['speed']/1000), 10)
self.spewwin.addnstr(self.spewh-1, 0,
"downloading %d pieces, have %d fragments, "
"%d of %d pieces completed" %
(statistics['storage_active'], statistics['storage_dirty'],
statistics['storage_numcomplete'], self.numpieces),
self.speww-1)
curses.panel.update_panels()
curses.doupdate()
class DL(Feedback):
def __init__(self, metainfo, config, errlist):
self.doneflag = threading.Event()
self.metainfo = metainfo
self.config = config
self.errlist = errlist
def run(self, scrwin):
def reread():
self.multitorrent.rawserver.external_add_task(self.reread_config,0)
self.d = CursesDisplayer(scrwin, self.errlist, self.doneflag, reread)
try:
self.multitorrent = Multitorrent(self.config, self.doneflag,
self.global_error)
# raises BTFailure if bad
metainfo = ConvertedMetainfo(bdecode(self.metainfo))
torrent_name = metainfo.name_fs
if config['save_as']:
if config['save_in']:
raise BTFailure('You cannot specify both --save_as and '
'--save_in')
saveas = config['save_as']
elif config['save_in']:
saveas = os.path.join(config['save_in'], torrent_name)
else:
saveas = torrent_name
self.d.set_torrent_values(metainfo.name, os.path.abspath(saveas),
metainfo.total_bytes, len(metainfo.hashes))
self.torrent = self.multitorrent.start_torrent(metainfo,
self.config, self, saveas)
except BTFailure, e:
errlist.append(str(e))
return
self.get_status()
self.multitorrent.rawserver.listen_forever()
self.d.display({'activity':'shutting down', 'fractionDone':0})
self.torrent.shutdown()
def reread_config(self):
try:
newvalues = configfile.get_config(self.config, 'btdownloadcurses')
except Exception, e:
self.d.error('Error reading config: ' + str(e))
return
self.config.update(newvalues)
# The set_option call can potentially trigger something that kills
# the torrent (when writing this the only possibility is a change in
# max_files_open causing an IOError while closing files), and so
# the self.failed() callback can run during this loop.
for option, value in newvalues.iteritems():
self.multitorrent.set_option(option, value)
for option, value in newvalues.iteritems():
self.torrent.set_option(option, value)
def get_status(self):
self.multitorrent.rawserver.add_task(self.get_status,
self.config['display_interval'])
status = self.torrent.get_status(self.config['spew'])
self.d.display(status)
def global_error(self, level, text):
self.d.error(text)
def error(self, torrent, level, text):
self.d.error(text)
def failed(self, torrent):
self.doneflag.set()
def finished(self, torrent):
self.d.finished()
if __name__ == '__main__':
uiname = 'btdownloadcurses'
defaults = get_defaults(uiname)
if len(sys.argv) <= 1:
printHelp(uiname, defaults)
sys.exit(1)
try:
config, args = configfile.parse_configuration_and_args(defaults,
uiname, sys.argv[1:], 0, 1)
if args:
if config['responsefile']:
raise BTFailure, 'must have responsefile as arg or ' \
'parameter, not both'
config['responsefile'] = args[0]
try:
if config['responsefile']:
h = file(config['responsefile'], 'rb')
metainfo = h.read()
h.close()
elif config['url']:
h = urlopen(config['url'])
metainfo = h.read()
h.close()
else:
raise BTFailure('you need to specify a .torrent file')
except IOError, e:
raise BTFailure('Error reading .torrent file: ', str(e))
except BTFailure, e:
print str(e)
sys.exit(1)
errlist = []
dl = DL(metainfo, config, errlist)
curses_wrapper(dl.run)
if errlist:
print "These errors occurred during execution:"
for error in errlist:
print error