import re
import string
import os
+import time
+import netrc
+import getpass
# First off, check Python and refuse to run
if sys.hexversion < 0x020400f0:
const_video_url_real_str = 'http://www.youtube.com/get_video?%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):
# 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')
# 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
# Generic download step
def download_step(return_data_flag, step_title, step_error, url, post_data=None):
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, 1)
+ new_max = max(bytes * 2, 1)
+ dif = after - before
+ if dif < 0.0001:
+ return new_max
+ rate = int(bytes / dif)
+ if rate > new_max:
+ return new_max
+ if rate < new_min:
+ return new_min
+ return rate
+
# Create the command line options parser and parse command line
cmdl_usage = 'usage: %prog [options] video_url'
-cmdl_version = '2006.12.07'
+cmdl_version = '2007.01.19'
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('-n', '--netrc', action='store_true', dest='use_netrc', help='use .netrc authentication data')
(cmdl_opts, cmdl_args) = cmdl_parser.parse_args()
# Get video URL
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:
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:
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.')
+
+# 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.')
+
+# 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:
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
if cmdl_opts.simulate:
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_str = '(unknown)'
byte_counter = 0
- video_block = video_data.read(const_block_size)
- while len(video_block) != 0:
- byte_counter += len(video_block)
- video_file.write(video_block)
+ block_size = const_initial_block_size
+ while True:
cond_print('\rRetrieving video data... %sk of %s ' % (to_k(byte_counter), video_len_str))
- video_block = video_data.read(const_block_size)
+ 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)
+ block_size = new_block_size(before, after, dl_bytes)
video_file.close()
cond_print('done.\n')
Rapsys Git / youtubedl / commitdiff