-# 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_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_video_title_re = re.compile(r'<title>YouTube - ([^<]*)</title>', re.M | re.I)
-const_1k = 1024
-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('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('\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')
- sys.stderr.write('Try again several times and contact me if the problem persists.\n')
- sys.exit('\n')
-
-# Wrapper to create custom requests with typical headers
-def request_create(url, data=None):
- retval = urllib2.Request(url)
- 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')
- retval.add_header('Accept-Charset', 'ISO-8859-1,utf-8;q=0.7,*;q=0.7')
- retval.add_header('Accept', 'text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5')
- retval.add_header('Accept-Language', 'en-us,en;q=0.5')
- return retval
-
-# Perform a request, process headers and return response
-def perform_request(url, data=None):
- request = request_create(url, data)
- 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:
- 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()
- return title
-
-# Generic download step
-def download_step(return_data_flag, step_title, step_error, url, post_data=None):
- try:
- cond_print('%s... ' % step_title)
- data = perform_request(url, post_data).read()
- cond_print('done.\n')
- if return_data_flag:
- return data
- return None
-
- except (urllib2.URLError, ValueError, httplib.HTTPException, TypeError):
- cond_print('failed.\n')
- error_advice_exit(step_error)
-
- except KeyboardInterrupt:
- sys.exit('\n')
-
-# Generic extract step
-def extract_step(step_title, step_error, regexp, data):
- try:
- cond_print('%s... ' % step_title)
- match = regexp.search(data)
-
- if match is None:
- cond_print('failed.\n')
- error_advice_exit(step_error)
-
- extracted_data = match.group(1)
- cond_print('done.\n')
- return extracted_data
-
- 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 = '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('-u', '--username', dest='username', metavar='USERNAME', help='account username')
-cmdl_parser.add_option('-p', '--password', dest='password', metavar='PASSWORD', help='account password')
-cmdl_parser.add_option('-o', '--output', dest='outfile', metavar='FILE', help='output video file name')
-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
-if len(cmdl_args) != 1:
- cmdl_parser.print_help()
- sys.exit('\n')
-video_url_cmdl = cmdl_args[0]
-
-# Verify video URL format and convert to "standard" format
-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 = const_video_url_str % video_url_id
-
-# Check conflicting options
-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 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.')
-
-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:
- video_filename = '%s.flv' % video_url_id
-else:
- video_filename = cmdl_opts.outfile
-
-# Check name
-if not video_filename.lower().endswith('.flv'):
- sys.stderr.write('Warning: video file name does not end in .flv\n')
-
-# Test writable file
-if not cmdl_opts.simulate:
- try:
- disk_test = open(video_filename, 'wb')
- disk_test.close()
-
- except (OSError, IOError):
- sys.exit('Error: unable to open %s for writing.' % video_filename)
-
-# Install cookie and proxy handlers
-urllib2.install_opener(urllib2.build_opener(urllib2.ProxyHandler()))
-urllib2.install_opener(urllib2.build_opener(urllib2.HTTPCookieProcessor()))
-
-# Log in and confirm age if needed
-if account_username is not None:
- url = const_login_url_str % video_url_id
- 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
- post = const_age_post_str % video_url_id
- download_step(False, 'Confirming age', 'unable to confirm age', url, post)
-
-# Retrieve video webpage
-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:
- 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
-
-# Retrieve video data
Rapsys Git / youtubedl / blobdiff