Command: cat /tmp/youtubular/usr/bin/youtube-dl#!/usr/bin/env python## 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"),# to deal in the Software without restriction, including without limitation# the rights to use, copy, modify, merge, publish, distribute, sublicense,# and/or sell copies of the Software, and to permit persons to whom the# Software is furnished to do so, subject to the following conditions:# # The above copyright notice and this permission notice shall be included# in all copies or substantial portions of the Software.# # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR# OTHER DEALINGS IN THE SOFTWARE.# # Except as contained in this notice, the name(s) of the above copyright# holders shall not be used in advertising or otherwise to promote the# sale, use or other dealings in this Software without prior written# authorization.#import getpassimport httplibimport mathimport netrcimport optparseimport osimport reimport socketimport stringimport sysimport timeimport urllib2# Global constantsconst_video_url_str = 'http://www.youtube.com/watch?v=%s'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_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 = 1024const_initial_block_size = 10 * const_1kconst_epsilon = 0.0001# Print error message, followed by standard advice information, and then exitdef 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('* 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') 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 headersdef 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 responsedef perform_request(url, data=None): request = request_create(url, data) response = urllib2.urlopen(request) return response# Conditional printdef cond_print(str): global cmdl_opts if not (cmdl_opts.quiet or cmdl_opts.get_url): sys.stdout.write(str) sys.stdout.flush()# Title string normalizationdef 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# Title string minimal transformationdef title_string_touch(title): return title.replace(os.sep, '%')# Generic download stepdef 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, socket.error): cond_print('failed.\n') error_advice_exit(step_error) except KeyboardInterrupt: sys.exit('\n')# Generic extract stepdef 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 sizedef 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 < const_epsilon: 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 bytesdef 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 bytesdef 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:SSdef 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 formatdef 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 linecmdl_usage = 'usage: %prog [options] video_url'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('-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('-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 URLif 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" formatvideo_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(2)video_url = const_video_url_str % video_url_id# Check conflicting optionsif 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 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 formattingif 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 anyaccount_username = Noneaccount_password = Noneif 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.passwordelse: 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_idelse: video_filename = cmdl_opts.outfile# Check nameif not video_filename.lower().endswith('.flv'): sys.stderr.write('Warning: video file name does not end in .flv\n')# Test writable fileif not (cmdl_opts.simulate or cmdl_opts.get_url): 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 handlersurllib2.install_opener(urllib2.build_opener(urllib2.ProxyHandler()))urllib2.install_opener(urllib2.build_opener(urllib2.HTTPCookieProcessor()))# Log in and confirm age if neededif 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 webpagevideo_webpage = download_step(True, 'Retrieving video webpage', 'unable to retrieve video webpage', video_url)# Extract video title if neededif 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 parametersvideo_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 datatry: 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()) 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 = long(video_data.info()['Content-length']) video_len_str = format_bytes(video_len) except KeyError: video_len = None video_len_str = 'N/A' byte_counter = 0 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) 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, socket.error): cond_print('failed.\n') error_advice_exit('unable to download video data')except KeyboardInterrupt: sys.exit('\n')# Rename video file if neededif cmdl_opts.use_title or cmdl_opts.use_literal: try: 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) except OSError: sys.stderr.write('Warning: unable to rename file.\n') except KeyboardInterrupt: sys.exit('\n')# Finishsys.exit()