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YoutubeDL.py
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YoutubeDL.py
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#!/usr/bin/env python3
# coding: utf-8
from __future__ import absolute_import, unicode_literals
import collections
import contextlib
import copy
import datetime
import errno
import fileinput
import functools
import io
import itertools
import json
import locale
import operator
import os
import platform
import re
import shutil
import subprocess
import sys
import tempfile
import time
import tokenize
import traceback
import random
import unicodedata
from enum import Enum
from string import ascii_letters
from .compat import (
compat_basestring,
compat_get_terminal_size,
compat_kwargs,
compat_numeric_types,
compat_os_name,
compat_pycrypto_AES,
compat_shlex_quote,
compat_str,
compat_tokenize_tokenize,
compat_urllib_error,
compat_urllib_request,
compat_urllib_request_DataHandler,
windows_enable_vt_mode,
)
from .cookies import load_cookies
from .utils import (
age_restricted,
args_to_str,
ContentTooShortError,
date_from_str,
DateRange,
DEFAULT_OUTTMPL,
determine_ext,
determine_protocol,
DownloadCancelled,
DownloadError,
encode_compat_str,
encodeFilename,
EntryNotInPlaylist,
error_to_compat_str,
ExistingVideoReached,
expand_path,
ExtractorError,
float_or_none,
format_bytes,
format_field,
formatSeconds,
GeoRestrictedError,
HEADRequest,
int_or_none,
iri_to_uri,
ISO3166Utils,
LazyList,
LINK_TEMPLATES,
locked_file,
make_dir,
make_HTTPS_handler,
MaxDownloadsReached,
network_exceptions,
number_of_digits,
orderedSet,
OUTTMPL_TYPES,
PagedList,
parse_filesize,
PerRequestProxyHandler,
platform_name,
Popen,
PostProcessingError,
preferredencoding,
prepend_extension,
register_socks_protocols,
RejectedVideoReached,
render_table,
replace_extension,
SameFileError,
sanitize_filename,
sanitize_path,
sanitize_url,
sanitized_Request,
std_headers,
STR_FORMAT_RE_TMPL,
STR_FORMAT_TYPES,
str_or_none,
strftime_or_none,
subtitles_filename,
supports_terminal_sequences,
ThrottledDownload,
to_high_limit_path,
traverse_obj,
try_get,
UnavailableVideoError,
url_basename,
variadic,
version_tuple,
write_json_file,
write_string,
YoutubeDLCookieProcessor,
YoutubeDLHandler,
YoutubeDLRedirectHandler,
)
from .cache import Cache
from .minicurses import format_text
from .extractor import (
gen_extractor_classes,
get_info_extractor,
_LAZY_LOADER,
_PLUGIN_CLASSES as plugin_extractors
)
from .extractor.openload import PhantomJSwrapper
from .downloader import (
FFmpegFD,
get_suitable_downloader,
shorten_protocol_name
)
from .downloader.rtmp import rtmpdump_version
from .postprocessor import (
get_postprocessor,
EmbedThumbnailPP,
FFmpegFixupDurationPP,
FFmpegFixupM3u8PP,
FFmpegFixupM4aPP,
FFmpegFixupStretchedPP,
FFmpegFixupTimestampPP,
FFmpegMergerPP,
FFmpegPostProcessor,
MoveFilesAfterDownloadPP,
_PLUGIN_CLASSES as plugin_postprocessors
)
from .update import detect_variant
from .version import __version__
if compat_os_name == 'nt':
import ctypes
class YoutubeDL(object):
"""YoutubeDL class.
YoutubeDL objects are the ones responsible of downloading the
actual video file and writing it to disk if the user has requested
it, among some other tasks. In most cases there should be one per
program. As, given a video URL, the downloader doesn't know how to
extract all the needed information, task that InfoExtractors do, it
has to pass the URL to one of them.
For this, YoutubeDL objects have a method that allows
InfoExtractors to be registered in a given order. When it is passed
a URL, the YoutubeDL object handles it to the first InfoExtractor it
finds that reports being able to handle it. The InfoExtractor extracts
all the information about the video or videos the URL refers to, and
YoutubeDL process the extracted information, possibly using a File
Downloader to download the video.
YoutubeDL objects accept a lot of parameters. In order not to saturate
the object constructor with arguments, it receives a dictionary of
options instead. These options are available through the params
attribute for the InfoExtractors to use. The YoutubeDL also
registers itself as the downloader in charge for the InfoExtractors
that are added to it, so this is a "mutual registration".
Available options:
username: Username for authentication purposes.
password: Password for authentication purposes.
videopassword: Password for accessing a video.
ap_mso: Adobe Pass multiple-system operator identifier.
ap_username: Multiple-system operator account username.
ap_password: Multiple-system operator account password.
usenetrc: Use netrc for authentication instead.
verbose: Print additional info to stdout.
quiet: Do not print messages to stdout.
no_warnings: Do not print out anything for warnings.
forceprint: A list of templates to force print
forceurl: Force printing final URL. (Deprecated)
forcetitle: Force printing title. (Deprecated)
forceid: Force printing ID. (Deprecated)
forcethumbnail: Force printing thumbnail URL. (Deprecated)
forcedescription: Force printing description. (Deprecated)
forcefilename: Force printing final filename. (Deprecated)
forceduration: Force printing duration. (Deprecated)
forcejson: Force printing info_dict as JSON.
dump_single_json: Force printing the info_dict of the whole playlist
(or video) as a single JSON line.
force_write_download_archive: Force writing download archive regardless
of 'skip_download' or 'simulate'.
simulate: Do not download the video files. If unset (or None),
simulate only if listsubtitles, listformats or list_thumbnails is used
format: Video format code. see "FORMAT SELECTION" for more details.
allow_unplayable_formats: Allow unplayable formats to be extracted and downloaded.
ignore_no_formats_error: Ignore "No video formats" error. Usefull for
extracting metadata even if the video is not actually
available for download (experimental)
format_sort: How to sort the video formats. see "Sorting Formats"
for more details.
format_sort_force: Force the given format_sort. see "Sorting Formats"
for more details.
allow_multiple_video_streams: Allow multiple video streams to be merged
into a single file
allow_multiple_audio_streams: Allow multiple audio streams to be merged
into a single file
check_formats Whether to test if the formats are downloadable.
Can be True (check all), False (check none),
'selected' (check selected formats),
or None (check only if requested by extractor)
paths: Dictionary of output paths. The allowed keys are 'home'
'temp' and the keys of OUTTMPL_TYPES (in utils.py)
outtmpl: Dictionary of templates for output names. Allowed keys
are 'default' and the keys of OUTTMPL_TYPES (in utils.py).
For compatibility with youtube-dl, a single string can also be used
outtmpl_na_placeholder: Placeholder for unavailable meta fields.
restrictfilenames: Do not allow "&" and spaces in file names
trim_file_name: Limit length of filename (extension excluded)
windowsfilenames: Force the filenames to be windows compatible
ignoreerrors: Do not stop on download/postprocessing errors.
Can be 'only_download' to ignore only download errors.
Default is 'only_download' for CLI, but False for API
skip_playlist_after_errors: Number of allowed failures until the rest of
the playlist is skipped
force_generic_extractor: Force downloader to use the generic extractor
overwrites: Overwrite all video and metadata files if True,
overwrite only non-video files if None
and don't overwrite any file if False
For compatibility with youtube-dl,
"nooverwrites" may also be used instead
playliststart: Playlist item to start at.
playlistend: Playlist item to end at.
playlist_items: Specific indices of playlist to download.
playlistreverse: Download playlist items in reverse order.
playlistrandom: Download playlist items in random order.
matchtitle: Download only matching titles.
rejecttitle: Reject downloads for matching titles.
logger: Log messages to a logging.Logger instance.
logtostderr: Log messages to stderr instead of stdout.
consoletitle: Display progress in console window's titlebar.
writedescription: Write the video description to a .description file
writeinfojson: Write the video description to a .info.json file
clean_infojson: Remove private fields from the infojson
getcomments: Extract video comments. This will not be written to disk
unless writeinfojson is also given
writeannotations: Write the video annotations to a .annotations.xml file
writethumbnail: Write the thumbnail image to a file
allow_playlist_files: Whether to write playlists' description, infojson etc
also to disk when using the 'write*' options
write_all_thumbnails: Write all thumbnail formats to files
writelink: Write an internet shortcut file, depending on the
current platform (.url/.webloc/.desktop)
writeurllink: Write a Windows internet shortcut file (.url)
writewebloclink: Write a macOS internet shortcut file (.webloc)
writedesktoplink: Write a Linux internet shortcut file (.desktop)
writesubtitles: Write the video subtitles to a file
writeautomaticsub: Write the automatically generated subtitles to a file
allsubtitles: Deprecated - Use subtitleslangs = ['all']
Downloads all the subtitles of the video
(requires writesubtitles or writeautomaticsub)
listsubtitles: Lists all available subtitles for the video
subtitlesformat: The format code for subtitles
subtitleslangs: List of languages of the subtitles to download (can be regex).
The list may contain "all" to refer to all the available
subtitles. The language can be prefixed with a "-" to
exclude it from the requested languages. Eg: ['all', '-live_chat']
keepvideo: Keep the video file after post-processing
daterange: A DateRange object, download only if the upload_date is in the range.
skip_download: Skip the actual download of the video file
cachedir: Location of the cache files in the filesystem.
False to disable filesystem cache.
noplaylist: Download single video instead of a playlist if in doubt.
age_limit: An integer representing the user's age in years.
Unsuitable videos for the given age are skipped.
min_views: An integer representing the minimum view count the video
must have in order to not be skipped.
Videos without view count information are always
downloaded. None for no limit.
max_views: An integer representing the maximum view count.
Videos that are more popular than that are not
downloaded.
Videos without view count information are always
downloaded. None for no limit.
download_archive: File name of a file where all downloads are recorded.
Videos already present in the file are not downloaded
again.
break_on_existing: Stop the download process after attempting to download a
file that is in the archive.
break_on_reject: Stop the download process when encountering a video that
has been filtered out.
cookiefile: File name where cookies should be read from and dumped to
cookiesfrombrowser: A tuple containing the name of the browser and the profile
name/path from where cookies are loaded.
Eg: ('chrome', ) or ('vivaldi', 'default')
nocheckcertificate:Do not verify SSL certificates
prefer_insecure: Use HTTP instead of HTTPS to retrieve information.
At the moment, this is only supported by YouTube.
proxy: URL of the proxy server to use
geo_verification_proxy: URL of the proxy to use for IP address verification
on geo-restricted sites.
socket_timeout: Time to wait for unresponsive hosts, in seconds
bidi_workaround: Work around buggy terminals without bidirectional text
support, using fridibi
debug_printtraffic:Print out sent and received HTTP traffic
include_ads: Download ads as well
default_search: Prepend this string if an input url is not valid.
'auto' for elaborate guessing
encoding: Use this encoding instead of the system-specified.
extract_flat: Do not resolve URLs, return the immediate result.
Pass in 'in_playlist' to only show this behavior for
playlist items.
postprocessors: A list of dictionaries, each with an entry
* key: The name of the postprocessor. See
yt_dlp/postprocessor/__init__.py for a list.
* when: When to run the postprocessor. Can be one of
pre_process|before_dl|post_process|after_move.
Assumed to be 'post_process' if not given
post_hooks: Deprecated - Register a custom postprocessor instead
A list of functions that get called as the final step
for each video file, after all postprocessors have been
called. The filename will be passed as the only argument.
progress_hooks: A list of functions that get called on download
progress, with a dictionary with the entries
* status: One of "downloading", "error", or "finished".
Check this first and ignore unknown values.
* info_dict: The extracted info_dict
If status is one of "downloading", or "finished", the
following properties may also be present:
* filename: The final filename (always present)
* tmpfilename: The filename we're currently writing to
* downloaded_bytes: Bytes on disk
* total_bytes: Size of the whole file, None if unknown
* total_bytes_estimate: Guess of the eventual file size,
None if unavailable.
* elapsed: The number of seconds since download started.
* eta: The estimated time in seconds, None if unknown
* speed: The download speed in bytes/second, None if
unknown
* fragment_index: The counter of the currently
downloaded video fragment.
* fragment_count: The number of fragments (= individual
files that will be merged)
Progress hooks are guaranteed to be called at least once
(with status "finished") if the download is successful.
postprocessor_hooks: A list of functions that get called on postprocessing
progress, with a dictionary with the entries
* status: One of "started", "processing", or "finished".
Check this first and ignore unknown values.
* postprocessor: Name of the postprocessor
* info_dict: The extracted info_dict
Progress hooks are guaranteed to be called at least twice
(with status "started" and "finished") if the processing is successful.
merge_output_format: Extension to use when merging formats.
final_ext: Expected final extension; used to detect when the file was
already downloaded and converted. "merge_output_format" is
replaced by this extension when given
fixup: Automatically correct known faults of the file.
One of:
- "never": do nothing
- "warn": only emit a warning
- "detect_or_warn": check whether we can do anything
about it, warn otherwise (default)
source_address: Client-side IP address to bind to.
call_home: Boolean, true iff we are allowed to contact the
yt-dlp servers for debugging. (BROKEN)
sleep_interval_requests: Number of seconds to sleep between requests
during extraction
sleep_interval: Number of seconds to sleep before each download when
used alone or a lower bound of a range for randomized
sleep before each download (minimum possible number
of seconds to sleep) when used along with
max_sleep_interval.
max_sleep_interval:Upper bound of a range for randomized sleep before each
download (maximum possible number of seconds to sleep).
Must only be used along with sleep_interval.
Actual sleep time will be a random float from range
[sleep_interval; max_sleep_interval].
sleep_interval_subtitles: Number of seconds to sleep before each subtitle download
listformats: Print an overview of available video formats and exit.
list_thumbnails: Print a table of all thumbnails and exit.
match_filter: A function that gets called with the info_dict of
every video.
If it returns a message, the video is ignored.
If it returns None, the video is downloaded.
match_filter_func in utils.py is one example for this.
no_color: Do not emit color codes in output.
geo_bypass: Bypass geographic restriction via faking X-Forwarded-For
HTTP header
geo_bypass_country:
Two-letter ISO 3166-2 country code that will be used for
explicit geographic restriction bypassing via faking
X-Forwarded-For HTTP header
geo_bypass_ip_block:
IP range in CIDR notation that will be used similarly to
geo_bypass_country
The following options determine which downloader is picked:
external_downloader: A dictionary of protocol keys and the executable of the
external downloader to use for it. The allowed protocols
are default|http|ftp|m3u8|dash|rtsp|rtmp|mms.
Set the value to 'native' to use the native downloader
hls_prefer_native: Deprecated - Use external_downloader = {'m3u8': 'native'}
or {'m3u8': 'ffmpeg'} instead.
Use the native HLS downloader instead of ffmpeg/avconv
if True, otherwise use ffmpeg/avconv if False, otherwise
use downloader suggested by extractor if None.
compat_opts: Compatibility options. See "Differences in default behavior".
The following options do not work when used through the API:
filename, abort-on-error, multistreams, no-live-chat, format-sort
no-clean-infojson, no-playlist-metafiles, no-keep-subs.
Refer __init__.py for their implementation
progress_template: Dictionary of templates for progress outputs.
Allowed keys are 'download', 'postprocess',
'download-title' (console title) and 'postprocess-title'.
The template is mapped on a dictionary with keys 'progress' and 'info'
The following parameters are not used by YoutubeDL itself, they are used by
the downloader (see yt_dlp/downloader/common.py):
nopart, updatetime, buffersize, ratelimit, throttledratelimit, min_filesize,
max_filesize, test, noresizebuffer, retries, fragment_retries, continuedl,
noprogress, xattr_set_filesize, hls_use_mpegts, http_chunk_size,
external_downloader_args.
The following options are used by the post processors:
prefer_ffmpeg: If False, use avconv instead of ffmpeg if both are available,
otherwise prefer ffmpeg. (avconv support is deprecated)
ffmpeg_location: Location of the ffmpeg/avconv binary; either the path
to the binary or its containing directory.
postprocessor_args: A dictionary of postprocessor/executable keys (in lower case)
and a list of additional command-line arguments for the
postprocessor/executable. The dict can also have "PP+EXE" keys
which are used when the given exe is used by the given PP.
Use 'default' as the name for arguments to passed to all PP
For compatibility with youtube-dl, a single list of args
can also be used
The following options are used by the extractors:
extractor_retries: Number of times to retry for known errors
dynamic_mpd: Whether to process dynamic DASH manifests (default: True)
hls_split_discontinuity: Split HLS playlists to different formats at
discontinuities such as ad breaks (default: False)
extractor_args: A dictionary of arguments to be passed to the extractors.
See "EXTRACTOR ARGUMENTS" for details.
Eg: {'youtube': {'skip': ['dash', 'hls']}}
youtube_include_dash_manifest: Deprecated - Use extractor_args instead.
If True (default), DASH manifests and related
data will be downloaded and processed by extractor.
You can reduce network I/O by disabling it if you don't
care about DASH. (only for youtube)
youtube_include_hls_manifest: Deprecated - Use extractor_args instead.
If True (default), HLS manifests and related
data will be downloaded and processed by extractor.
You can reduce network I/O by disabling it if you don't
care about HLS. (only for youtube)
"""
_NUMERIC_FIELDS = set((
'width', 'height', 'tbr', 'abr', 'asr', 'vbr', 'fps', 'filesize', 'filesize_approx',
'timestamp', 'release_timestamp',
'duration', 'view_count', 'like_count', 'dislike_count', 'repost_count',
'average_rating', 'comment_count', 'age_limit',
'start_time', 'end_time',
'chapter_number', 'season_number', 'episode_number',
'track_number', 'disc_number', 'release_year',
))
_format_selection_exts = {
'audio': {'m4a', 'mp3', 'ogg', 'aac'},
'video': {'mp4', 'flv', 'webm', '3gp'},
'storyboards': {'mhtml'},
}
params = None
_ies = {}
_pps = {'pre_process': [], 'before_dl': [], 'after_move': [], 'post_process': []}
_printed_messages = set()
_first_webpage_request = True
_download_retcode = None
_num_downloads = None
_playlist_level = 0
_playlist_urls = set()
_screen_file = None
def __init__(self, params=None, auto_init=True):
"""Create a FileDownloader object with the given options.
@param auto_init Whether to load the default extractors and print header (if verbose).
Set to 'no_verbose_header' to not print the header
"""
if params is None:
params = {}
self._ies = {}
self._ies_instances = {}
self._pps = {'pre_process': [], 'before_dl': [], 'after_move': [], 'post_process': []}
self._printed_messages = set()
self._first_webpage_request = True
self._post_hooks = []
self._progress_hooks = []
self._postprocessor_hooks = []
self._download_retcode = 0
self._num_downloads = 0
self._screen_file = [sys.stdout, sys.stderr][params.get('logtostderr', False)]
self._err_file = sys.stderr
self.params = params
self.cache = Cache(self)
windows_enable_vt_mode()
# FIXME: This will break if we ever print color to stdout
self._allow_colors = {
'screen': not self.params.get('no_color') and supports_terminal_sequences(self._screen_file),
'err': not self.params.get('no_color') and supports_terminal_sequences(self._err_file),
}
if sys.version_info < (3, 6):
self.report_warning(
'Python version %d.%d is not supported! Please update to Python 3.6 or above' % sys.version_info[:2])
if self.params.get('allow_unplayable_formats'):
self.report_warning(
f'You have asked for {self._format_err("UNPLAYABLE", self.Styles.EMPHASIS)} formats to be listed/downloaded. '
'This is a developer option intended for debugging. \n'
' If you experience any issues while using this option, '
f'{self._format_err("DO NOT", self.Styles.ERROR)} open a bug report')
def check_deprecated(param, option, suggestion):
if self.params.get(param) is not None:
self.report_warning('%s is deprecated. Use %s instead' % (option, suggestion))
return True
return False
if check_deprecated('cn_verification_proxy', '--cn-verification-proxy', '--geo-verification-proxy'):
if self.params.get('geo_verification_proxy') is None:
self.params['geo_verification_proxy'] = self.params['cn_verification_proxy']
check_deprecated('autonumber', '--auto-number', '-o "%(autonumber)s-%(title)s.%(ext)s"')
check_deprecated('usetitle', '--title', '-o "%(title)s-%(id)s.%(ext)s"')
check_deprecated('useid', '--id', '-o "%(id)s.%(ext)s"')
for msg in self.params.get('_warnings', []):
self.report_warning(msg)
if 'list-formats' in self.params.get('compat_opts', []):
self.params['listformats_table'] = False
if 'overwrites' not in self.params and self.params.get('nooverwrites') is not None:
# nooverwrites was unnecessarily changed to overwrites
# in 0c3d0f51778b153f65c21906031c2e091fcfb641
# This ensures compatibility with both keys
self.params['overwrites'] = not self.params['nooverwrites']
elif self.params.get('overwrites') is None:
self.params.pop('overwrites', None)
else:
self.params['nooverwrites'] = not self.params['overwrites']
if params.get('bidi_workaround', False):
try:
import pty
master, slave = pty.openpty()
width = compat_get_terminal_size().columns
if width is None:
width_args = []
else:
width_args = ['-w', str(width)]
sp_kwargs = dict(
stdin=subprocess.PIPE,
stdout=slave,
stderr=self._err_file)
try:
self._output_process = Popen(['bidiv'] + width_args, **sp_kwargs)
except OSError:
self._output_process = Popen(['fribidi', '-c', 'UTF-8'] + width_args, **sp_kwargs)
self._output_channel = os.fdopen(master, 'rb')
except OSError as ose:
if ose.errno == errno.ENOENT:
self.report_warning(
'Could not find fribidi executable, ignoring --bidi-workaround. '
'Make sure that fribidi is an executable file in one of the directories in your $PATH.')
else:
raise
if (sys.platform != 'win32'
and sys.getfilesystemencoding() in ['ascii', 'ANSI_X3.4-1968']
and not params.get('restrictfilenames', False)):
# Unicode filesystem API will throw errors (#1474, #13027)
self.report_warning(
'Assuming --restrict-filenames since file system encoding '
'cannot encode all characters. '
'Set the LC_ALL environment variable to fix this.')
self.params['restrictfilenames'] = True
self.outtmpl_dict = self.parse_outtmpl()
# Creating format selector here allows us to catch syntax errors before the extraction
self.format_selector = (
None if self.params.get('format') is None
else self.build_format_selector(self.params['format']))
self._setup_opener()
if auto_init:
if auto_init != 'no_verbose_header':
self.print_debug_header()
self.add_default_info_extractors()
for pp_def_raw in self.params.get('postprocessors', []):
pp_def = dict(pp_def_raw)
when = pp_def.pop('when', 'post_process')
pp_class = get_postprocessor(pp_def.pop('key'))
pp = pp_class(self, **compat_kwargs(pp_def))
self.add_post_processor(pp, when=when)
for ph in self.params.get('post_hooks', []):
self.add_post_hook(ph)
for ph in self.params.get('progress_hooks', []):
self.add_progress_hook(ph)
register_socks_protocols()
def preload_download_archive(fn):
"""Preload the archive, if any is specified"""
if fn is None:
return False
self.write_debug(f'Loading archive file {fn!r}')
try:
with locked_file(fn, 'r', encoding='utf-8') as archive_file:
for line in archive_file:
self.archive.add(line.strip())
except IOError as ioe:
if ioe.errno != errno.ENOENT:
raise
return False
return True
self.archive = set()
preload_download_archive(self.params.get('download_archive'))
def warn_if_short_id(self, argv):
# short YouTube ID starting with dash?
idxs = [
i for i, a in enumerate(argv)
if re.match(r'^-[0-9A-Za-z_-]{10}$', a)]
if idxs:
correct_argv = (
['yt-dlp']
+ [a for i, a in enumerate(argv) if i not in idxs]
+ ['--'] + [argv[i] for i in idxs]
)
self.report_warning(
'Long argument string detected. '
'Use -- to separate parameters and URLs, like this:\n%s' %
args_to_str(correct_argv))
def add_info_extractor(self, ie):
"""Add an InfoExtractor object to the end of the list."""
ie_key = ie.ie_key()
self._ies[ie_key] = ie
if not isinstance(ie, type):
self._ies_instances[ie_key] = ie
ie.set_downloader(self)
def _get_info_extractor_class(self, ie_key):
ie = self._ies.get(ie_key)
if ie is None:
ie = get_info_extractor(ie_key)
self.add_info_extractor(ie)
return ie
def get_info_extractor(self, ie_key):
"""
Get an instance of an IE with name ie_key, it will try to get one from
the _ies list, if there's no instance it will create a new one and add
it to the extractor list.
"""
ie = self._ies_instances.get(ie_key)
if ie is None:
ie = get_info_extractor(ie_key)()
self.add_info_extractor(ie)
return ie
def add_default_info_extractors(self):
"""
Add the InfoExtractors returned by gen_extractors to the end of the list
"""
for ie in gen_extractor_classes():
self.add_info_extractor(ie)
def add_post_processor(self, pp, when='post_process'):
"""Add a PostProcessor object to the end of the chain."""
self._pps[when].append(pp)
pp.set_downloader(self)
def add_post_hook(self, ph):
"""Add the post hook"""
self._post_hooks.append(ph)
def add_progress_hook(self, ph):
"""Add the download progress hook"""
self._progress_hooks.append(ph)
def add_postprocessor_hook(self, ph):
"""Add the postprocessing progress hook"""
self._postprocessor_hooks.append(ph)
def _bidi_workaround(self, message):
if not hasattr(self, '_output_channel'):
return message
assert hasattr(self, '_output_process')
assert isinstance(message, compat_str)
line_count = message.count('\n') + 1
self._output_process.stdin.write((message + '\n').encode('utf-8'))
self._output_process.stdin.flush()
res = ''.join(self._output_channel.readline().decode('utf-8')
for _ in range(line_count))
return res[:-len('\n')]
def _write_string(self, message, out=None, only_once=False):
if only_once:
if message in self._printed_messages:
return
self._printed_messages.add(message)
write_string(message, out=out, encoding=self.params.get('encoding'))
def to_stdout(self, message, skip_eol=False, quiet=False):
"""Print message to stdout"""
if self.params.get('logger'):
self.params['logger'].debug(message)
elif not quiet or self.params.get('verbose'):
self._write_string(
'%s%s' % (self._bidi_workaround(message), ('' if skip_eol else '\n')),
self._err_file if quiet else self._screen_file)
def to_stderr(self, message, only_once=False):
"""Print message to stderr"""
assert isinstance(message, compat_str)
if self.params.get('logger'):
self.params['logger'].error(message)
else:
self._write_string('%s\n' % self._bidi_workaround(message), self._err_file, only_once=only_once)
def to_console_title(self, message):
if not self.params.get('consoletitle', False):
return
if compat_os_name == 'nt':
if ctypes.windll.kernel32.GetConsoleWindow():
# c_wchar_p() might not be necessary if `message` is
# already of type unicode()
ctypes.windll.kernel32.SetConsoleTitleW(ctypes.c_wchar_p(message))
elif 'TERM' in os.environ:
self._write_string('\033]0;%s\007' % message, self._screen_file)
def save_console_title(self):
if not self.params.get('consoletitle', False):
return
if self.params.get('simulate'):
return
if compat_os_name != 'nt' and 'TERM' in os.environ:
# Save the title on stack
self._write_string('\033[22;0t', self._screen_file)
def restore_console_title(self):
if not self.params.get('consoletitle', False):
return
if self.params.get('simulate'):
return
if compat_os_name != 'nt' and 'TERM' in os.environ:
# Restore the title from stack
self._write_string('\033[23;0t', self._screen_file)
def __enter__(self):
self.save_console_title()
return self
def __exit__(self, *args):
self.restore_console_title()
if self.params.get('cookiefile') is not None:
self.cookiejar.save(ignore_discard=True, ignore_expires=True)
def trouble(self, message=None, tb=None):
"""Determine action to take when a download problem appears.
Depending on if the downloader has been configured to ignore
download errors or not, this method may throw an exception or
not when errors are found, after printing the message.
tb, if given, is additional traceback information.
"""
if message is not None:
self.to_stderr(message)
if self.params.get('verbose'):
if tb is None:
if sys.exc_info()[0]: # if .trouble has been called from an except block
tb = ''
if hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]:
tb += ''.join(traceback.format_exception(*sys.exc_info()[1].exc_info))
tb += encode_compat_str(traceback.format_exc())
else:
tb_data = traceback.format_list(traceback.extract_stack())
tb = ''.join(tb_data)
if tb:
self.to_stderr(tb)
if not self.params.get('ignoreerrors'):
if sys.exc_info()[0] and hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]:
exc_info = sys.exc_info()[1].exc_info
else:
exc_info = sys.exc_info()
raise DownloadError(message, exc_info)
self._download_retcode = 1
def to_screen(self, message, skip_eol=False):
"""Print message to stdout if not in quiet mode"""
self.to_stdout(
message, skip_eol, quiet=self.params.get('quiet', False))
class Styles(Enum):
HEADERS = 'yellow'
EMPHASIS = 'blue'
ID = 'green'
DELIM = 'blue'
ERROR = 'red'
WARNING = 'yellow'
def __format_text(self, out, text, f, fallback=None, *, test_encoding=False):
assert out in ('screen', 'err')
if test_encoding:
original_text = text
handle = self._screen_file if out == 'screen' else self._err_file
encoding = self.params.get('encoding') or getattr(handle, 'encoding', 'ascii')
text = text.encode(encoding, 'ignore').decode(encoding)
if fallback is not None and text != original_text:
text = fallback
if isinstance(f, self.Styles):
f = f._value_
return format_text(text, f) if self._allow_colors[out] else text if fallback is None else fallback
def _format_screen(self, *args, **kwargs):
return self.__format_text('screen', *args, **kwargs)
def _format_err(self, *args, **kwargs):
return self.__format_text('err', *args, **kwargs)
def report_warning(self, message, only_once=False):
'''
Print the message to stderr, it will be prefixed with 'WARNING:'
If stderr is a tty file the 'WARNING:' will be colored
'''
if self.params.get('logger') is not None:
self.params['logger'].warning(message)
else:
if self.params.get('no_warnings'):
return
self.to_stderr(f'{self._format_err("WARNING:", self.Styles.WARNING)} {message}', only_once)
def report_error(self, message, tb=None):
'''
Do the same as trouble, but prefixes the message with 'ERROR:', colored
in red if stderr is a tty file.
'''
self.trouble(f'{self._format_err("ERROR:", self.Styles.ERROR)} {message}', tb)
def write_debug(self, message, only_once=False):
'''Log debug message or Print message to stderr'''
if not self.params.get('verbose', False):
return
message = '[debug] %s' % message
if self.params.get('logger'):
self.params['logger'].debug(message)
else:
self.to_stderr(message, only_once)
def report_file_already_downloaded(self, file_name):
"""Report file has already been fully downloaded."""
try:
self.to_screen('[download] %s has already been downloaded' % file_name)
except UnicodeEncodeError:
self.to_screen('[download] The file has already been downloaded')
def report_file_delete(self, file_name):
"""Report that existing file will be deleted."""
try:
self.to_screen('Deleting existing file %s' % file_name)
except UnicodeEncodeError:
self.to_screen('Deleting existing file')
def raise_no_formats(self, info, forced=False):
has_drm = info.get('__has_drm')
msg = 'This video is DRM protected' if has_drm else 'No video formats found!'
expected = self.params.get('ignore_no_formats_error')
if forced or not expected:
raise ExtractorError(msg, video_id=info['id'], ie=info['extractor'],
expected=has_drm or expected)
else:
self.report_warning(msg)
def parse_outtmpl(self):
outtmpl_dict = self.params.get('outtmpl', {})
if not isinstance(outtmpl_dict, dict):
outtmpl_dict = {'default': outtmpl_dict}
# Remove spaces in the default template
if self.params.get('restrictfilenames'):
sanitize = lambda x: x.replace(' - ', ' ').replace(' ', '-')
else:
sanitize = lambda x: x
outtmpl_dict.update({
k: sanitize(v) for k, v in DEFAULT_OUTTMPL.items()
if outtmpl_dict.get(k) is None})
for key, val in outtmpl_dict.items():
if isinstance(val, bytes):
self.report_warning(
'Parameter outtmpl is bytes, but should be a unicode string. '
'Put from __future__ import unicode_literals at the top of your code file or consider switching to Python 3.x.')
return outtmpl_dict
def get_output_path(self, dir_type='', filename=None):
paths = self.params.get('paths', {})
assert isinstance(paths, dict)
path = os.path.join(
expand_path(paths.get('home', '').strip()),
expand_path(paths.get(dir_type, '').strip()) if dir_type else '',
filename or '')
# Temporary fix for #4787
# 'Treat' all problem characters by passing filename through preferredencoding
# to workaround encoding issues with subprocess on python2 @ Windows
if sys.version_info < (3, 0) and sys.platform == 'win32':
path = encodeFilename(path, True).decode(preferredencoding())
return sanitize_path(path, force=self.params.get('windowsfilenames'))
@staticmethod
def _outtmpl_expandpath(outtmpl):
# expand_path translates '%%' into '%' and '$$' into '$'
# correspondingly that is not what we want since we need to keep
# '%%' intact for template dict substitution step. Working around
# with boundary-alike separator hack.
sep = ''.join([random.choice(ascii_letters) for _ in range(32)])
outtmpl = outtmpl.replace('%%', '%{0}%'.format(sep)).replace('$$', '${0}$'.format(sep))
# outtmpl should be expand_path'ed before template dict substitution
# because meta fields may contain env variables we don't want to
# be expanded. For example, for outtmpl "%(title)s.%(ext)s" and
# title "Hello $PATH", we don't want `$PATH` to be expanded.
return expand_path(outtmpl).replace(sep, '')
@staticmethod
def escape_outtmpl(outtmpl):
''' Escape any remaining strings like %s, %abc% etc. '''
return re.sub(
STR_FORMAT_RE_TMPL.format('', '(?![%(\0])'),
lambda mobj: ('' if mobj.group('has_key') else '%') + mobj.group(0),
outtmpl)
@classmethod
def validate_outtmpl(cls, outtmpl):
''' @return None or Exception object '''
outtmpl = re.sub(
STR_FORMAT_RE_TMPL.format('[^)]*', '[ljqBU]'),
lambda mobj: f'{mobj.group(0)[:-1]}s',
cls._outtmpl_expandpath(outtmpl))
try:
cls.escape_outtmpl(outtmpl) % collections.defaultdict(int)
return None
except ValueError as err:
return err
@staticmethod
def _copy_infodict(info_dict):
info_dict = dict(info_dict)
for key in ('__original_infodict', '__postprocessors'):
info_dict.pop(key, None)
return info_dict
def prepare_outtmpl(self, outtmpl, info_dict, sanitize=None):
""" Make the outtmpl and info_dict suitable for substitution: ydl.escape_outtmpl(outtmpl) % info_dict """
info_dict.setdefault('epoch', int(time.time())) # keep epoch consistent once set
info_dict = self._copy_infodict(info_dict)
info_dict['duration_string'] = ( # %(duration>%H-%M-%S)s is wrong if duration > 24hrs
formatSeconds(info_dict['duration'], '-' if sanitize else ':')