#!/usr/bin/env python
#
-# Copyright (c) 2006 Ricardo Garcia Gonzalez
+# Copyright (c) 2006-2007 Ricardo Garcia Gonzalez
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# sale, use or other dealings in this Software without prior written
# authorization.
#
-import sys
-import optparse
+import getpass
import httplib
-import urllib2
+import math
+import netrc
+import optparse
+import os
import re
+import socket
import string
-import os
-
-# First off, check Python and refuse to run
-if sys.hexversion < 0x020400f0:
- sys.exit('Error: Python 2.4 or later needed to run the program')
+import sys
+import time
+import urllib2
# Global constants
const_video_url_str = 'http://www.youtube.com/watch?v=%s'
-const_video_url_re = re.compile(r'(?:http://)?(?:www\d*\.)?youtube\.com/(?:v/|(?:watch(?:\.php)?)?\?v=)([^&]+).*')
+const_video_url_re = re.compile(r'^((?:http://)?(?:\w+\.)?youtube\.com/(?:v/|(?:watch(?:\.php)?)?\?(?:.+&)?v=))?([0-9A-Za-z_-]+)(?(1)[&/].*)?$')
const_login_url_str = 'http://www.youtube.com/login?next=/watch%%3Fv%%3D%s'
const_login_post_str = 'current_form=loginForm&next=%%2Fwatch%%3Fv%%3D%s&username=%s&password=%s&action_login=Log+In'
const_age_url_str = 'http://www.youtube.com/verify_age?next_url=/watch%%3Fv%%3D%s'
const_age_post_str = 'next_url=%%2Fwatch%%3Fv%%3D%s&action_confirm=Confirm'
-const_video_url_params_re = re.compile(r'player2\.swf\?([^"]+)"', re.M)
-const_video_url_real_str = 'http://www.youtube.com/get_video?%s'
+const_url_t_param_re = re.compile(r'[,{]t:\'([^\']*)\'')
+const_video_url_real_str = 'http://www.youtube.com/get_video?video_id=%s&t=%s'
const_video_title_re = re.compile(r'<title>YouTube - ([^<]*)</title>', re.M | re.I)
const_1k = 1024
-const_block_size = 10 * const_1k
+const_initial_block_size = 10 * const_1k
# Print error message, followed by standard advice information, and then exit
def error_advice_exit(error_text):
sys.stderr.write('Error: %s.\n' % error_text)
- sys.stderr.write('Try again several times. It may be a temporal problem.\n')
+ sys.stderr.write('Try again several times. It may be a temporary problem.\n')
sys.stderr.write('Other typical problems:\n\n')
- sys.stderr.write('\tVideo no longer exists.\n')
- sys.stderr.write('\tVideo requires age confirmation but you did not provide an account.\n')
- sys.stderr.write('\tYou provided the account data, but it is not valid.\n')
- sys.stderr.write('\tThe connection was cut suddenly for some reason.\n')
- sys.stderr.write('\tYouTube changed their system, and the program no longer works.\n')
+ sys.stderr.write('* Video no longer exists.\n')
+ sys.stderr.write('* Video requires age confirmation but you did not provide an account.\n')
+ sys.stderr.write('* You provided the account data, but it is not valid.\n')
+ sys.stderr.write('* The connection was cut suddenly for some reason.\n')
+ sys.stderr.write('* YouTube changed their system, and the program no longer works.\n')
sys.stderr.write('\nTry to confirm you are able to view the video using a web browser.\n')
sys.stderr.write('Use the same video URL and account information, if needed, with this program.\n')
sys.stderr.write('When using a proxy, make sure http_proxy has http://host:port format.\n')
# Wrapper to create custom requests with typical headers
def request_create(url, data=None):
retval = urllib2.Request(url)
- if not data is None:
+ if data is not None:
retval.add_data(data)
# Try to mimic Firefox, at least a little bit
retval.add_header('User-Agent', 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0')
response = urllib2.urlopen(request)
return response
-# Convert bytes to KiB
-def to_k(bytes):
- global const_1k
- return bytes / const_1k
-
# Conditional print
def cond_print(str):
global cmdl_opts
- if not cmdl_opts.quiet:
+ if not (cmdl_opts.quiet or cmdl_opts.get_url):
sys.stdout.write(str)
sys.stdout.flush()
# Title string normalization
def title_string_norm(title):
+ title = ''.join((x in string.ascii_letters or x in string.digits) and x or ' ' for x in title)
+ title = '_'.join(title.split())
title = title.lower()
- title = map(lambda x: x in string.whitespace and '_' or x, title)
- title = filter(lambda x: x in string.lowercase or x in string.digits or x == '_', title)
- return ''.join(title)
+ return title
+
+# Title string minimal transformation
+def title_string_touch(title):
+ return title.replace(os.sep, '%')
# Generic download step
def download_step(return_data_flag, step_title, step_error, url, post_data=None):
return data
return None
- except (urllib2.URLError, ValueError, httplib.HTTPException, TypeError):
+ except (urllib2.URLError, ValueError, httplib.HTTPException, TypeError, socket.error):
cond_print('failed.\n')
error_advice_exit(step_error)
except KeyboardInterrupt:
sys.exit('\n')
+# Calculate new block size based on previous block size
+def new_block_size(before, after, bytes):
+ new_min = max(bytes / 2.0, 1.0)
+ new_max = max(bytes * 2.0, 1.0)
+ dif = after - before
+ if dif < 0.0001:
+ return int(new_max)
+ rate = bytes / dif
+ if rate > new_max:
+ return int(new_max)
+ if rate < new_min:
+ return int(new_min)
+ return int(rate)
+
+# Get optimum 1k exponent to represent a number of bytes
+def optimum_k_exp(num_bytes):
+ global const_1k
+ if num_bytes == 0:
+ return 0
+ return long(math.log(num_bytes, const_1k))
+
+# Get optimum representation of number of bytes
+def format_bytes(num_bytes):
+ global const_1k
+ try:
+ exp = optimum_k_exp(num_bytes)
+ suffix = 'bkMGTPEZY'[exp]
+ if exp == 0:
+ return '%s%s' % (num_bytes, suffix)
+ converted = float(num_bytes) / float(const_1k**exp)
+ return '%.2f%s' % (converted, suffix)
+ except IndexError:
+ sys.exit('Error: internal error formatting number of bytes.')
+
+# Calculate ETA and return it in string format as MM:SS
+def calc_eta(start, now, total, current):
+ if current == 0:
+ return '--:--'
+ rate = float(current) / (now - start)
+ eta = long((total - current) / rate)
+ eta_mins = eta / 60
+ eta_secs = eta % 60
+ if eta_mins > 99:
+ return '--:--'
+ return '%02d:%02d' % (eta_mins, eta_secs)
+
+# Calculate speed and return it in string format
+def calc_speed(start, now, bytes):
+ if bytes == 0:
+ return 'N/A b'
+ return format_bytes(float(bytes) / (now - start))
+
# Create the command line options parser and parse command line
cmdl_usage = 'usage: %prog [options] video_url'
-cmdl_version = '2006.12.07'
+cmdl_version = '2007.08.24'
cmdl_parser = optparse.OptionParser(usage=cmdl_usage, version=cmdl_version, conflict_handler='resolve')
cmdl_parser.add_option('-h', '--help', action='help', help='print this help text and exit')
cmdl_parser.add_option('-v', '--version', action='version', help='print program version and exit')
cmdl_parser.add_option('-q', '--quiet', action='store_true', dest='quiet', help='activates quiet mode')
cmdl_parser.add_option('-s', '--simulate', action='store_true', dest='simulate', help='do not download video')
cmdl_parser.add_option('-t', '--title', action='store_true', dest='use_title', help='use title in file name')
+cmdl_parser.add_option('-l', '--literal', action='store_true', dest='use_literal', help='use literal title in file name')
+cmdl_parser.add_option('-n', '--netrc', action='store_true', dest='use_netrc', help='use .netrc authentication data')
+cmdl_parser.add_option('-g', '--get-url', action='store_true', dest='get_url', help='print final video URL only')
+cmdl_parser.add_option('-2', '--title-too', action='store_true', dest='get_title', help='used with -g, print title too')
(cmdl_opts, cmdl_args) = cmdl_parser.parse_args()
# Get video URL
video_url_mo = const_video_url_re.match(video_url_cmdl)
if video_url_mo is None:
sys.exit('Error: URL does not seem to be a youtube video URL. If it is, report a bug.')
-video_url_id = video_url_mo.group(1)
+video_url_id = video_url_mo.group(2)
video_url = const_video_url_str % video_url_id
# Check conflicting options
-if not cmdl_opts.outfile is None and cmdl_opts.simulate:
+if cmdl_opts.outfile is not None and (cmdl_opts.simulate or cmdl_opts.get_url):
sys.stderr.write('Warning: video file name given but will not be used.\n')
-if not cmdl_opts.outfile is None and cmdl_opts.use_title:
+if cmdl_opts.outfile is not None and (cmdl_opts.use_title or cmdl_opts.use_literal):
sys.exit('Error: using the video title conflicts with using a given file name.')
-# Verify both or none present
-if ((cmdl_opts.username is None and not cmdl_opts.password is None) or
- (not cmdl_opts.username is None and cmdl_opts.password is None)):
- sys.exit('Error: both username and password must be given, or none.')
+if cmdl_opts.use_netrc and cmdl_opts.password is not None:
+ sys.exit('Error: using netrc conflicts with giving command line password.')
+
+if cmdl_opts.use_title and cmdl_opts.use_literal:
+ sys.exit('Error: cannot use title and literal title at the same time.')
+
+if cmdl_opts.quiet and cmdl_opts.get_url:
+ sys.exit('Error: cannot be quiet and print final URL at the same time.')
+
+# Incorrect option formatting
+if cmdl_opts.username is None and cmdl_opts.password is not None:
+ sys.exit('Error: password give but username is missing.')
+
+if cmdl_opts.get_url is None and cmdl_opts.get_title is not None:
+ sys.exit('Error: getting title requires getting URL.')
+
+# Get account information if any
+account_username = None
+account_password = None
+
+if cmdl_opts.use_netrc:
+ try:
+ info = netrc.netrc().authenticators('youtube')
+ if info is None:
+ sys.exit('Error: no authenticators for machine youtube.')
+ netrc_username = info[0]
+ netrc_password = info[2]
+ except IOError:
+ sys.exit('Error: unable to read .netrc file.')
+ except netrc.NetrcParseError:
+ sys.exit('Error: unable to parse .netrc file.')
+
+if cmdl_opts.password is not None:
+ account_username = cmdl_opts.username
+ account_password = cmdl_opts.password
+else:
+ if cmdl_opts.username is not None and cmdl_opts.use_netrc:
+ if cmdl_opts.username != netrc_username:
+ sys.exit('Error: conflicting username from .netrc and command line options.')
+ account_username = cmdl_opts.username
+ account_password = netrc_password
+ elif cmdl_opts.username is not None:
+ account_username = cmdl_opts.username
+ account_password = getpass.getpass('Type YouTube password and press return: ')
+ elif cmdl_opts.use_netrc:
+ if len(netrc_username) == 0:
+ sys.exit('Error: empty username in .netrc file.')
+ account_username = netrc_username
+ account_password = netrc_password
# Get output file name
if cmdl_opts.outfile is None:
sys.stderr.write('Warning: video file name does not end in .flv\n')
# Test writable file
-if not cmdl_opts.simulate:
+if not (cmdl_opts.simulate or cmdl_opts.get_url):
try:
disk_test = open(video_filename, 'wb')
disk_test.close()
urllib2.install_opener(urllib2.build_opener(urllib2.HTTPCookieProcessor()))
# Log in and confirm age if needed
-if not cmdl_opts.username is None:
+if account_username is not None:
url = const_login_url_str % video_url_id
- post = const_login_post_str % (video_url_id, cmdl_opts.username, cmdl_opts.password)
+ post = const_login_post_str % (video_url_id, account_username, account_password)
download_step(False, 'Logging in', 'unable to log in', url, post)
url = const_age_url_str % video_url_id
video_webpage = download_step(True, 'Retrieving video webpage', 'unable to retrieve video webpage', video_url)
# Extract video title if needed
-if cmdl_opts.use_title:
+if cmdl_opts.use_title or cmdl_opts.use_literal or cmdl_opts.get_title:
video_title = extract_step('Extracting video title', 'unable to extract video title', const_video_title_re, video_webpage)
# Extract needed video URL parameters
-video_url_params = extract_step('Extracting video URL parameters', 'unable to extract URL parameters', const_video_url_params_re, video_webpage)
-video_url_real = const_video_url_real_str % video_url_params
+video_url_t_param = extract_step('Extracting URL "t" parameter', 'unable to extract URL "t" parameter', const_url_t_param_re, video_webpage)
+video_url_real = const_video_url_real_str % (video_url_id, video_url_t_param)
# Retrieve video data
try:
video_data = perform_request(video_url_real)
cond_print('Video data found at %s\n' % video_data.geturl())
- # Abort here if in simulate mode
- if cmdl_opts.simulate:
+ if cmdl_opts.get_title:
+ print video_title
+
+ if cmdl_opts.get_url:
+ print video_data.geturl()
+
+ if cmdl_opts.simulate or cmdl_opts.get_url:
sys.exit()
- cond_print('Retrieving video data... ')
video_file = open(video_filename, 'wb')
try:
- video_len_str = '%sk' % to_k(long(video_data.info()['Content-length']))
+ video_len = long(video_data.info()['Content-length'])
+ video_len_str = format_bytes(video_len)
except KeyError:
- video_len_str = '(unknown)'
+ video_len = None
+ video_len_str = 'N/A'
byte_counter = 0
- video_block = video_data.read(const_block_size)
- while len(video_block) != 0:
- byte_counter += len(video_block)
+ block_size = const_initial_block_size
+ start_time = time.time()
+ while True:
+ if video_len is not None:
+ percent = float(byte_counter) / float(video_len) * 100.0
+ percent_str = '%.1f' % percent
+ eta_str = calc_eta(start_time, time.time(), video_len, byte_counter)
+ else:
+ percent_str = '---.-'
+ eta_str = '--:--'
+ counter = format_bytes(byte_counter)
+ speed_str = calc_speed(start_time, time.time(), byte_counter)
+ cond_print('\rRetrieving video data: %5s%% (%8s of %s) at %8s/s ETA %s ' % (percent_str, counter, video_len_str, speed_str, eta_str))
+
+ before = time.time()
+ video_block = video_data.read(block_size)
+ after = time.time()
+ dl_bytes = len(video_block)
+ if dl_bytes == 0:
+ break
+ byte_counter += dl_bytes
video_file.write(video_block)
- cond_print('\rRetrieving video data... %sk of %s ' % (to_k(byte_counter), video_len_str))
- video_block = video_data.read(const_block_size)
+ block_size = new_block_size(before, after, dl_bytes)
+
+ if video_len is not None and byte_counter != video_len:
+ error_advice_exit('server did not send the expected amount of data')
video_file.close()
cond_print('done.\n')
cond_print('Video data saved to %s\n' % video_filename)
-except (urllib2.URLError, ValueError, httplib.HTTPException, TypeError):
+except (urllib2.URLError, ValueError, httplib.HTTPException, TypeError, socket.error):
cond_print('failed.\n')
error_advice_exit('unable to download video data')
sys.exit('\n')
# Rename video file if needed
-if cmdl_opts.use_title:
+if cmdl_opts.use_title or cmdl_opts.use_literal:
try:
- final_filename = '%s-%s.flv' % (title_string_norm(video_title), video_url_id)
+ if cmdl_opts.use_title:
+ prefix = title_string_norm(video_title)
+ else:
+ prefix = title_string_touch(video_title)
+ final_filename = '%s-%s.flv' % (prefix, video_url_id)
os.rename(video_filename, final_filename)
cond_print('Video file renamed to %s\n' % final_filename)
Rapsys Git / youtubedl / blobdiff