#!/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"),
#
import getpass
import httplib
+import math
import netrc
import optparse
import os
# 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_initial_block_size = 10 * const_1k
+const_epsilon = 0.0001
# 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 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')
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 = title.lower()
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):
try:
# Calculate new block size based on previous block size
def new_block_size(before, after, bytes):
- new_min = max(bytes / 2, 1)
- new_max = max(bytes * 2, 1)
+ new_min = max(bytes / 2.0, 1.0)
+ new_max = max(bytes * 2.0, 1.0)
dif = after - before
- if dif < 0.0001:
- return new_max
- rate = int(bytes / dif)
+ if dif < const_epsilon:
+ return int(new_max)
+ rate = bytes / dif
if rate > new_max:
- return new_max
+ return int(new_max)
if rate < new_min:
- return new_min
- return rate
+ 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):
+ dif = now - start
+ if current == 0 or dif < const_epsilon:
+ return '--:--'
+ rate = float(current) / dif
+ 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):
+ dif = now - start
+ if bytes == 0 or dif < const_epsilon:
+ return 'N/A b'
+ return format_bytes(float(bytes) / dif)
# Create the command line options parser and parse command line
cmdl_usage = 'usage: %prog [options] video_url'
-cmdl_version = '2007.02.18'
+cmdl_version = '2007.10.09'
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 cmdl_opts.outfile is not 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 cmdl_opts.outfile is not 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.')
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
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()
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:
+ cond_print('Requesting video file... ')
video_data = perform_request(video_url_real)
+ cond_print('done.')
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()
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
block_size = const_initial_block_size
+ start_time = time.time()
while True:
- cond_print('\rRetrieving video data... %sk of %s ' % (to_k(byte_counter), video_len_str))
+ 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()
video_file.write(video_block)
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 ammount of data')
+
video_file.close()
cond_print('done.\n')
cond_print('Video data saved to %s\n' % video_filename)
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