X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/04a301d947124b5d27a90db6313acc99ad63fbb1..7d41ef900c8e7727604e1fdd2525d26e1a0e386e:/youtube-dl?ds=sidebyside diff --git a/youtube-dl b/youtube-dl index 3cd8bfb..e3eb877 100755 --- a/youtube-dl +++ b/youtube-dl @@ -1,272 +1,89 @@ #!/usr/bin/env python -# -# Copyright (c) 2006 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 sys -import optparse -import httplib -import urllib2 -import re -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, os +import json, hashlib -# 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'YouTube - ([^<]*)', re.M | re.I) -const_1k = 1024 -const_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 not data is 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 = 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) - -# 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') - -# Create the command line options parser and parse command line -cmdl_usage = 'usage: %prog [options] video_url' -cmdl_version = '2006.12.07' -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_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 not cmdl_opts.outfile is 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: - 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.') - -# 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 not cmdl_opts.username is None: - url = const_login_url_str % video_url_id - post = const_login_post_str % (video_url_id, cmdl_opts.username, cmdl_opts.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 try: - video_data = perform_request(video_url_real) - cond_print('Video data found at %s\n' % video_data.geturl()) + import urllib.request as compat_urllib_request +except ImportError: # Python 2 + import urllib2 as compat_urllib_request + +def rsa_verify(message, signature, key): + from struct import pack + from hashlib import sha256 + from sys import version_info + def b(x): + if version_info[0] == 2: return x + else: return x.encode('latin1') + assert(type(message) == type(b(''))) + block_size = 0 + n = key[0] + while n: + block_size += 1 + n >>= 8 + signature = pow(int(signature, 16), key[1], key[0]) + raw_bytes = [] + while signature: + raw_bytes.insert(0, pack("B", signature & 0xFF)) + signature >>= 8 + signature = (block_size - len(raw_bytes)) * b('\x00') + b('').join(raw_bytes) + if signature[0:2] != b('\x00\x01'): return False + signature = signature[2:] + if not b('\x00') in signature: return False + signature = signature[signature.index(b('\x00'))+1:] + if not signature.startswith(b('\x30\x31\x30\x0D\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x01\x05\x00\x04\x20')): return False + signature = signature[19:] + if signature != sha256(message).digest(): return False + return True + +sys.stderr.write(u'Hi! We changed distribution method and now youtube-dl needs to update itself one more time.\n') +sys.stderr.write(u'This will only happen once. Simply press enter to go on. Sorry for the trouble!\n') +sys.stderr.write(u'From now on, get the binaries from http://rg3.github.io/youtube-dl/download.html, not from the git repository.\n\n') - # Abort here if in simulate mode - if cmdl_opts.simulate: - sys.exit() +try: + raw_input() +except NameError: # Python 3 + input() - cond_print('Retrieving video data... ') - video_file = open(video_filename, 'wb') - try: - video_len_str = '%sk' % to_k(long(video_data.info()['Content-length'])) - except KeyError: - video_len_str = '(unknown)' +filename = sys.argv[0] - 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) - cond_print('\rRetrieving video data... %sk of %s ' % (to_k(byte_counter), video_len_str)) - video_block = video_data.read(const_block_size) +UPDATE_URL = "http://rg3.github.io/youtube-dl/update/" +VERSION_URL = UPDATE_URL + 'LATEST_VERSION' +JSON_URL = UPDATE_URL + 'versions.json' +UPDATES_RSA_KEY = (0x9d60ee4d8f805312fdb15a62f87b95bd66177b91df176765d13514a0f1754bcd2057295c5b6f1d35daa6742c3ffc9a82d3e118861c207995a8031e151d863c9927e304576bc80692bc8e094896fcf11b66f3e29e04e3a71e9a11558558acea1840aec37fc396fb6b65dc81a1c4144e03bd1c011de62e3f1357b327d08426fe93, 65537) - video_file.close() - cond_print('done.\n') - cond_print('Video data saved to %s\n' % video_filename) +if not os.access(filename, os.W_OK): + sys.exit('ERROR: no write permissions on %s' % filename) -except (urllib2.URLError, ValueError, httplib.HTTPException, TypeError): - cond_print('failed.\n') - error_advice_exit('unable to download video data') +try: + versions_info = compat_urllib_request.urlopen(JSON_URL).read().decode('utf-8') + versions_info = json.loads(versions_info) +except: + sys.exit(u'ERROR: can\'t obtain versions info. Please try again later.') +if not 'signature' in versions_info: + sys.exit(u'ERROR: the versions file is not signed or corrupted. Aborting.') +signature = versions_info['signature'] +del versions_info['signature'] +if not rsa_verify(json.dumps(versions_info, sort_keys=True).encode('utf-8'), signature, UPDATES_RSA_KEY): + sys.exit(u'ERROR: the versions file signature is invalid. Aborting.') + +version = versions_info['versions'][versions_info['latest']] -except KeyboardInterrupt: - sys.exit('\n') +try: + urlh = compat_urllib_request.urlopen(version['bin'][0]) + newcontent = urlh.read() + urlh.close() +except (IOError, OSError) as err: + sys.exit('ERROR: unable to download latest version') -# Rename video file if needed -if cmdl_opts.use_title: - try: - final_filename = '%s-%s.flv' % (title_string_norm(video_title), 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') +newcontent_hash = hashlib.sha256(newcontent).hexdigest() +if newcontent_hash != version['bin'][1]: + sys.exit(u'ERROR: the downloaded file hash does not match. Aborting.') - except KeyboardInterrupt: - sys.exit('\n') +try: + with open(filename, 'wb') as outf: + outf.write(newcontent) +except (IOError, OSError) as err: + sys.exit('ERROR: unable to overwrite current version') -# Finish -sys.exit() +sys.stderr.write(u'Done! Now you can run youtube-dl.\n')