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path: root/youtube_dl/__init__.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-

from __future__ import with_statement
from __future__ import absolute_import

__authors__  = (
    'Ricardo Garcia Gonzalez',
    'Danny Colligan',
    'Benjamin Johnson',
    'Vasyl\' Vavrychuk',
    'Witold Baryluk',
    'Paweł Paprota',
    'Gergely Imreh',
    'Rogério Brito',
    'Philipp Hagemeister',
    'Sören Schulze',
    'Kevin Ngo',
    'Ori Avtalion',
    'shizeeg',
    'Filippo Valsorda',
    'Christian Albrecht',
    )

__license__ = 'Public Domain'
__version__ = '2012.11.29'

UPDATE_URL = 'https://raw.github.com/rg3/youtube-dl/master/youtube-dl'
UPDATE_URL_VERSION = 'https://raw.github.com/rg3/youtube-dl/master/LATEST_VERSION'
UPDATE_URL_EXE = 'https://raw.github.com/rg3/youtube-dl/master/youtube-dl.exe'


import getpass
import optparse
import os
import re
import shlex
import socket
import subprocess
import sys
import warnings

from .utils import *
from .FileDownloader import *
from .InfoExtractors import *
from .PostProcessor import *

def updateSelf(downloader, filename):
    ''' Update the program file with the latest version from the repository '''
    # Note: downloader only used for options

    if not os.access(filename, os.W_OK):
        sys.exit('ERROR: no write permissions on %s' % filename)

    downloader.to_screen(u'Updating to latest version...')

    urlv = compat_urllib_request.urlopen(UPDATE_URL_VERSION)
    newversion = urlv.read().strip()
    if newversion == __version__:
        downloader.to_screen(u'youtube-dl is up-to-date (' + __version__ + ')')
        return
    urlv.close()

    if hasattr(sys, "frozen"): #py2exe
        exe = os.path.abspath(filename)
        directory = os.path.dirname(exe)
        if not os.access(directory, os.W_OK):
            sys.exit('ERROR: no write permissions on %s' % directory)

        try:
            urlh = compat_urllib_request.urlopen(UPDATE_URL_EXE)
            newcontent = urlh.read()
            urlh.close()
            with open(exe + '.new', 'wb') as outf:
                outf.write(newcontent)
        except (IOError, OSError) as err:
            sys.exit('ERROR: unable to download latest version')

        try:
            bat = os.path.join(directory, 'youtube-dl-updater.bat')
            b = open(bat, 'w')
            b.write("""
echo Updating youtube-dl...
ping 127.0.0.1 -n 5 -w 1000 > NUL
move /Y "%s.new" "%s"
del "%s"
            \n""" %(exe, exe, bat))
            b.close()

            os.startfile(bat)
        except (IOError, OSError) as err:
            sys.exit('ERROR: unable to overwrite current version')

    else:
        try:
            urlh = compat_urllib_request.urlopen(UPDATE_URL)
            newcontent = urlh.read()
            urlh.close()
        except (IOError, OSError) as err:
            sys.exit('ERROR: unable to download latest version')

        try:
            with open(filename, 'wb') as outf:
                outf.write(newcontent)
        except (IOError, OSError) as err:
            sys.exit('ERROR: unable to overwrite current version')

    downloader.to_screen(u'Updated youtube-dl. Restart youtube-dl to use the new version.')

def parseOpts():
    def _readOptions(filename_bytes):
        try:
            optionf = open(filename_bytes)
        except IOError:
            return [] # silently skip if file is not present
        try:
            res = []
            for l in optionf:
                res += shlex.split(l, comments=True)
        finally:
            optionf.close()
        return res

    def _format_option_string(option):
        ''' ('-o', '--option') -> -o, --format METAVAR'''

        opts = []

        if option._short_opts:
            opts.append(option._short_opts[0])
        if option._long_opts:
            opts.append(option._long_opts[0])
        if len(opts) > 1:
            opts.insert(1, ', ')

        if option.takes_value(): opts.append(' %s' % option.metavar)

        return "".join(opts)

    def _find_term_columns():
        columns = os.environ.get('COLUMNS', None)
        if columns:
            return int(columns)

        try:
            sp = subprocess.Popen(['stty', 'size'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
            out,err = sp.communicate()
            return int(out.split()[1])
        except:
            pass
        return None

    max_width = 80
    max_help_position = 80

    # No need to wrap help messages if we're on a wide console
    columns = _find_term_columns()
    if columns: max_width = columns

    fmt = optparse.IndentedHelpFormatter(width=max_width, max_help_position=max_help_position)
    fmt.format_option_strings = _format_option_string

    kw = {
        'version'   : __version__,
        'formatter' : fmt,
        'usage' : '%prog [options] url [url...]',
        'conflict_handler' : 'resolve',
    }

    parser = optparse.OptionParser(**kw)

    # option groups
    general        = optparse.OptionGroup(parser, 'General Options')
    selection      = optparse.OptionGroup(parser, 'Video Selection')
    authentication = optparse.OptionGroup(parser, 'Authentication Options')
    video_format   = optparse.OptionGroup(parser, 'Video Format Options')
    postproc       = optparse.OptionGroup(parser, 'Post-processing Options')
    filesystem     = optparse.OptionGroup(parser, 'Filesystem Options')
    verbosity      = optparse.OptionGroup(parser, 'Verbosity / Simulation Options')

    general.add_option('-h', '--help',
            action='help', help='print this help text and exit')
    general.add_option('-v', '--version',
            action='version', help='print program version and exit')
    general.add_option('-U', '--update',
            action='store_true', dest='update_self', help='update this program to latest version')
    general.add_option('-i', '--ignore-errors',
            action='store_true', dest='ignoreerrors', help='continue on download errors', default=False)
    general.add_option('-r', '--rate-limit',
            dest='ratelimit', metavar='LIMIT', help='download rate limit (e.g. 50k or 44.6m)')
    general.add_option('-R', '--retries',
            dest='retries', metavar='RETRIES', help='number of retries (default is %default)', default=10)
    general.add_option('--buffer-size',
            dest='buffersize', metavar='SIZE', help='size of download buffer (e.g. 1024 or 16k) (default is %default)', default="1024")
    general.add_option('--no-resize-buffer',
            action='store_true', dest='noresizebuffer',
            help='do not automatically adjust the buffer size. By default, the buffer size is automatically resized from an initial value of SIZE.', default=False)
    general.add_option('--dump-user-agent',
            action='store_true', dest='dump_user_agent',
            help='display the current browser identification', default=False)
    general.add_option('--user-agent',
            dest='user_agent', help='specify a custom user agent', metavar='UA')
    general.add_option('--list-extractors',
            action='store_true', dest='list_extractors',
            help='List all supported extractors and the URLs they would handle', default=False)
    general.add_option('--test', action='store_true', dest='test', default=False, help=optparse.SUPPRESS_HELP)

    selection.add_option('--playlist-start',
            dest='playliststart', metavar='NUMBER', help='playlist video to start at (default is %default)', default=1)
    selection.add_option('--playlist-end',
            dest='playlistend', metavar='NUMBER', help='playlist video to end at (default is last)', default=-1)
    selection.add_option('--match-title', dest='matchtitle', metavar='REGEX',help='download only matching titles (regex or caseless sub-string)')
    selection.add_option('--reject-title', dest='rejecttitle', metavar='REGEX',help='skip download for matching titles (regex or caseless sub-string)')
    selection.add_option('--max-downloads', metavar='NUMBER', dest='max_downloads', help='Abort after downloading NUMBER files', default=None)

    authentication.add_option('-u', '--username',
            dest='username', metavar='USERNAME', help='account username')
    authentication.add_option('-p', '--password',
            dest='password', metavar='PASSWORD', help='account password')
    authentication.add_option('-n', '--netrc',
            action='store_true', dest='usenetrc', help='use .netrc authentication data', default=False)


    video_format.add_option('-f', '--format',
            action='store', dest='format', metavar='FORMAT', help='video format code')
    video_format.add_option('--all-formats',
            action='store_const', dest='format', help='download all available video formats', const='all')
    video_format.add_option('--prefer-free-formats',
            action='store_true', dest='prefer_free_formats', default=False, help='prefer free video formats unless a specific one is requested')
    video_format.add_option('--max-quality',
            action='store', dest='format_limit', metavar='FORMAT', help='highest quality format to download')
    video_format.add_option('-F', '--list-formats',
            action='store_true', dest='listformats', help='list all available formats (currently youtube only)')
    video_format.add_option('--write-srt',
            action='store_true', dest='writesubtitles',
            help='write video closed captions to a .srt file (currently youtube only)', default=False)
    video_format.add_option('--srt-lang',
            action='store', dest='subtitleslang', metavar='LANG',
            help='language of the closed captions to download (optional) use IETF language tags like \'en\'')


    verbosity.add_option('-q', '--quiet',
            action='store_true', dest='quiet', help='activates quiet mode', default=False)
    verbosity.add_option('-s', '--simulate',
            action='store_true', dest='simulate', help='do not download the video and do not write anything to disk', default=False)
    verbosity.add_option('--skip-download',
            action='store_true', dest='skip_download', help='do not download the video', default=False)
    verbosity.add_option('-g', '--get-url',
            action='store_true', dest='geturl', help='simulate, quiet but print URL', default=False)
    verbosity.add_option('-e', '--get-title',
            action='store_true', dest='gettitle', help='simulate, quiet but print title', default=False)
    verbosity.add_option('--get-thumbnail',
            action='store_true', dest='getthumbnail',
            help='simulate, quiet but print thumbnail URL', default=False)
    verbosity.add_option('--get-description',
            action='store_true', dest='getdescription',
            help='simulate, quiet but print video description', default=False)
    verbosity.add_option('--get-filename',
            action='store_true', dest='getfilename',
            help='simulate, quiet but print output filename', default=False)
    verbosity.add_option('--get-format',
            action='store_true', dest='getformat',
            help='simulate, quiet but print output format', default=False)
    verbosity.add_option('--no-progress',
            action='store_true', dest='noprogress', help='do not print progress bar', default=False)
    verbosity.add_option('--console-title',
            action='store_true', dest='consoletitle',
            help='display progress in console titlebar', default=False)
    verbosity.add_option('-v', '--verbose',
            action='store_true', dest='verbose', help='print various debugging information', default=False)


    filesystem.add_option('-t', '--title',
            action='store_true', dest='usetitle', help='use title in file name', default=False)
    filesystem.add_option('--id',
            action='store_true', dest='useid', help='use video ID in file name', default=False)
    filesystem.add_option('-l', '--literal',
            action='store_true', dest='usetitle', help='[deprecated] alias of --title', default=False)
    filesystem.add_option('-A', '--auto-number',
            action='store_true', dest='autonumber',
            help='number downloaded files starting from 00000', default=False)
    filesystem.add_option('-o', '--output',
            dest='outtmpl', metavar='TEMPLATE', help='output filename template. Use %(title)s to get the title, %(uploader)s for the uploader name, %(autonumber)s to get an automatically incremented number, %(ext)s for the filename extension, %(upload_date)s for the upload date (YYYYMMDD), %(extractor)s for the provider (youtube, metacafe, etc), %(id)s for the video id and %% for a literal percent. Use - to output to stdout. Can also be used to download to a different directory, for example with -o \'/my/downloads/%(uploader)s/%(title)s-%(id)s.%(ext)s\' .')
    filesystem.add_option('--restrict-filenames',
            action='store_true', dest='restrictfilenames',
            help='Restrict filenames to only ASCII characters, and avoid "&" and spaces in filenames', default=False)
    filesystem.add_option('-a', '--batch-file',
            dest='batchfile', metavar='FILE', help='file containing URLs to download (\'-\' for stdin)')
    filesystem.add_option('-w', '--no-overwrites',
            action='store_true', dest='nooverwrites', help='do not overwrite files', default=False)
    filesystem.add_option('-c', '--continue',
            action='store_true', dest='continue_dl', help='resume partially downloaded files', default=True)
    filesystem.add_option('--no-continue',
            action='store_false', dest='continue_dl',
            help='do not resume partially downloaded files (restart from beginning)')
    filesystem.add_option('--cookies',
            dest='cookiefile', metavar='FILE', help='file to read cookies from and dump cookie jar in')
    filesystem.add_option('--no-part',
            action='store_true', dest='nopart', help='do not use .part files', default=False)
    filesystem.add_option('--no-mtime',
            action='store_false', dest='updatetime',
            help='do not use the Last-modified header to set the file modification time', default=True)
    filesystem.add_option('--write-description',
            action='store_true', dest='writedescription',
            help='write video description to a .description file', default=False)
    filesystem.add_option('--write-info-json',
            action='store_true', dest='writeinfojson',
            help='write video metadata to a .info.json file', default=False)


    postproc.add_option('-x', '--extract-audio', action='store_true', dest='extractaudio', default=False,
            help='convert video files to audio-only files (requires ffmpeg or avconv and ffprobe or avprobe)')
    postproc.add_option('--audio-format', metavar='FORMAT', dest='audioformat', default='best',
            help='"best", "aac", "vorbis", "mp3", "m4a", or "wav"; best by default')
    postproc.add_option('--audio-quality', metavar='QUALITY', dest='audioquality', default='5',
            help='ffmpeg/avconv audio quality specification, insert a value between 0 (better) and 9 (worse) for VBR or a specific bitrate like 128K (default 5)')
    postproc.add_option('-k', '--keep-video', action='store_true', dest='keepvideo', default=False,
            help='keeps the video file on disk after the post-processing; the video is erased by default')


    parser.add_option_group(general)
    parser.add_option_group(selection)
    parser.add_option_group(filesystem)
    parser.add_option_group(verbosity)
    parser.add_option_group(video_format)
    parser.add_option_group(authentication)
    parser.add_option_group(postproc)

    xdg_config_home = os.environ.get('XDG_CONFIG_HOME')
    if xdg_config_home:
        userConf = os.path.join(xdg_config_home, 'youtube-dl.conf')
    else:
        userConf = os.path.join(os.path.expanduser('~'), '.config', 'youtube-dl.conf')
    argv = _readOptions('/etc/youtube-dl.conf') + _readOptions(userConf) + sys.argv[1:]
    opts, args = parser.parse_args(argv)

    return parser, opts, args

def gen_extractors():
    """ Return a list of an instance of every supported extractor.
    The order does matter; the first extractor matched is the one handling the URL.
    """
    return [
        YoutubePlaylistIE(),
        YoutubeChannelIE(),
        YoutubeUserIE(),
        YoutubeSearchIE(),
        YoutubeIE(),
        MetacafeIE(),
        DailymotionIE(),
        GoogleIE(),
        GoogleSearchIE(),
        PhotobucketIE(),
        YahooIE(),
        YahooSearchIE(),
        DepositFilesIE(),
        FacebookIE(),
        BlipTVUserIE(),
        BlipTVIE(),
        VimeoIE(),
        MyVideoIE(),
        ComedyCentralIE(),
        EscapistIE(),
        CollegeHumorIE(),
        XVideosIE(),
        SoundcloudIE(),
        InfoQIE(),
        MixcloudIE(),
        StanfordOpenClassroomIE(),
        MTVIE(),
        YoukuIE(),
        XNXXIE(),
        GooglePlusIE(),
        ArteTvIE(),
        GenericIE()
    ]

def _real_main():
    parser, opts, args = parseOpts()

    # Open appropriate CookieJar
    if opts.cookiefile is None:
        jar = compat_cookiejar.CookieJar()
    else:
        try:
            jar = compat_cookiejar.MozillaCookieJar(opts.cookiefile)
            if os.path.isfile(opts.cookiefile) and os.access(opts.cookiefile, os.R_OK):
                jar.load()
        except (IOError, OSError) as err:
            sys.exit(u'ERROR: unable to open cookie file')
    # Set user agent
    if opts.user_agent is not None:
        std_headers['User-Agent'] = opts.user_agent

    # Dump user agent
    if opts.dump_user_agent:
        print(std_headers['User-Agent'])
        sys.exit(0)

    # Batch file verification
    batchurls = []
    if opts.batchfile is not None:
        try:
            if opts.batchfile == '-':
                batchfd = sys.stdin
            else:
                batchfd = open(opts.batchfile, 'r')
            batchurls = batchfd.readlines()
            batchurls = [x.strip() for x in batchurls]
            batchurls = [x for x in batchurls if len(x) > 0 and not re.search(r'^[#/;]', x)]
        except IOError:
            sys.exit(u'ERROR: batch file could not be read')
    all_urls = batchurls + args
    all_urls = [url.strip() for url in all_urls]

    # General configuration
    cookie_processor = compat_urllib_request.HTTPCookieProcessor(jar)
    proxy_handler = compat_urllib_request.ProxyHandler()
    opener = compat_urllib_request.build_opener(proxy_handler, cookie_processor, YoutubeDLHandler())
    compat_urllib_request.install_opener(opener)
    socket.setdefaulttimeout(300) # 5 minutes should be enough (famous last words)

    extractors = gen_extractors()

    if opts.list_extractors:
        for ie in extractors:
            print(ie.IE_NAME + (' (CURRENTLY BROKEN)' if not ie._WORKING else ''))
            matchedUrls = filter(lambda url: ie.suitable(url), all_urls)
            all_urls = filter(lambda url: url not in matchedUrls, all_urls)
            for mu in matchedUrls:
                print(u'  ' + mu)
        sys.exit(0)

    # Conflicting, missing and erroneous options
    if opts.usenetrc and (opts.username is not None or opts.password is not None):
        parser.error(u'using .netrc conflicts with giving username/password')
    if opts.password is not None and opts.username is None:
        parser.error(u'account username missing')
    if opts.outtmpl is not None and (opts.usetitle or opts.autonumber or opts.useid):
        parser.error(u'using output template conflicts with using title, video ID or auto number')
    if opts.usetitle and opts.useid:
        parser.error(u'using title conflicts with using video ID')
    if opts.username is not None and opts.password is None:
        opts.password = getpass.getpass(u'Type account password and press return:')
    if opts.ratelimit is not None:
        numeric_limit = FileDownloader.parse_bytes(opts.ratelimit)
        if numeric_limit is None:
            parser.error(u'invalid rate limit specified')
        opts.ratelimit = numeric_limit
    if opts.retries is not None:
        try:
            opts.retries = int(opts.retries)
        except (TypeError, ValueError) as err:
            parser.error(u'invalid retry count specified')
    if opts.buffersize is not None:
        numeric_buffersize = FileDownloader.parse_bytes(opts.buffersize)
        if numeric_buffersize is None:
            parser.error(u'invalid buffer size specified')
        opts.buffersize = numeric_buffersize
    try:
        opts.playliststart = int(opts.playliststart)
        if opts.playliststart <= 0:
            raise ValueError(u'Playlist start must be positive')
    except (TypeError, ValueError) as err:
        parser.error(u'invalid playlist start number specified')
    try:
        opts.playlistend = int(opts.playlistend)
        if opts.playlistend != -1 and (opts.playlistend <= 0 or opts.playlistend < opts.playliststart):
            raise ValueError(u'Playlist end must be greater than playlist start')
    except (TypeError, ValueError) as err:
        parser.error(u'invalid playlist end number specified')
    if opts.extractaudio:
        if opts.audioformat not in ['best', 'aac', 'mp3', 'vorbis', 'm4a', 'wav']:
            parser.error(u'invalid audio format specified')
    if opts.audioquality:
        opts.audioquality = opts.audioquality.strip('k').strip('K')
        if not opts.audioquality.isdigit():
            parser.error(u'invalid audio quality specified')

    # File downloader
    fd = FileDownloader({
        'usenetrc': opts.usenetrc,
        'username': opts.username,
        'password': opts.password,
        'quiet': (opts.quiet or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat),
        'forceurl': opts.geturl,
        'forcetitle': opts.gettitle,
        'forcethumbnail': opts.getthumbnail,
        'forcedescription': opts.getdescription,
        'forcefilename': opts.getfilename,
        'forceformat': opts.getformat,
        'simulate': opts.simulate,
        'skip_download': (opts.skip_download or opts.simulate or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat),
        'format': opts.format,
        'format_limit': opts.format_limit,
        'listformats': opts.listformats,
        'outtmpl': ((opts.outtmpl is not None and opts.outtmpl.decode(preferredencoding()))
            or (opts.format == '-1' and opts.usetitle and u'%(title)s-%(id)s-%(format)s.%(ext)s')
            or (opts.format == '-1' and u'%(id)s-%(format)s.%(ext)s')
            or (opts.usetitle and opts.autonumber and u'%(autonumber)s-%(title)s-%(id)s.%(ext)s')
            or (opts.usetitle and u'%(title)s-%(id)s.%(ext)s')
            or (opts.useid and u'%(id)s.%(ext)s')
            or (opts.autonumber and u'%(autonumber)s-%(id)s.%(ext)s')
            or u'%(id)s.%(ext)s'),
        'restrictfilenames': opts.restrictfilenames,
        'ignoreerrors': opts.ignoreerrors,
        'ratelimit': opts.ratelimit,
        'nooverwrites': opts.nooverwrites,
        'retries': opts.retries,
        'buffersize': opts.buffersize,
        'noresizebuffer': opts.noresizebuffer,
        'continuedl': opts.continue_dl,
        'noprogress': opts.noprogress,
        'playliststart': opts.playliststart,
        'playlistend': opts.playlistend,
        'logtostderr': opts.outtmpl == '-',
        'consoletitle': opts.consoletitle,
        'nopart': opts.nopart,
        'updatetime': opts.updatetime,
        'writedescription': opts.writedescription,
        'writeinfojson': opts.writeinfojson,
        'writesubtitles': opts.writesubtitles,
        'subtitleslang': opts.subtitleslang,
        'matchtitle': opts.matchtitle,
        'rejecttitle': opts.rejecttitle,
        'max_downloads': opts.max_downloads,
        'prefer_free_formats': opts.prefer_free_formats,
        'verbose': opts.verbose,
        'test': opts.test,
        })

    if opts.verbose:
        fd.to_screen(u'[debug] Proxy map: ' + str(proxy_handler.proxies))

    for extractor in extractors:
        fd.add_info_extractor(extractor)

    # PostProcessors
    if opts.extractaudio:
        fd.add_post_processor(FFmpegExtractAudioPP(preferredcodec=opts.audioformat, preferredquality=opts.audioquality, keepvideo=opts.keepvideo))

    # Update version
    if opts.update_self:
        updateSelf(fd, sys.argv[0])

    # Maybe do nothing
    if len(all_urls) < 1:
        if not opts.update_self:
            parser.error(u'you must provide at least one URL')
        else:
            sys.exit()

    try:
        retcode = fd.download(all_urls)
    except MaxDownloadsReached:
        fd.to_screen(u'--max-download limit reached, aborting.')
        retcode = 101

    # Dump cookie jar if requested
    if opts.cookiefile is not None:
        try:
            jar.save()
        except (IOError, OSError) as err:
            sys.exit(u'ERROR: unable to save cookie jar')

    sys.exit(retcode)

def main():
    try:
        _real_main()
    except DownloadError:
        sys.exit(1)
    except SameFileError:
        sys.exit(u'ERROR: fixed output name but more than one file to download')
    except KeyboardInterrupt:
        sys.exit(u'\nERROR: Interrupted by user')