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#!/usr/bin/env python # -*- coding: utf-8 -*-
from __future__ import unicode_literals
import calendar import codecs import contextlib import ctypes import datetime import email.utils import errno import functools import gzip import itertools import io import json import locale import math import operator import os import pipes import platform import re import ssl import socket import struct import subprocess import sys import tempfile import traceback import xml.etree.ElementTree import zlib
from .compat import ( compat_basestring, compat_chr, compat_html_entities, compat_http_client, compat_parse_qs, compat_socket_create_connection, compat_str, compat_urllib_error, compat_urllib_parse, compat_urllib_parse_urlparse, compat_urllib_request, compat_urlparse, shlex_quote, )
# This is not clearly defined otherwise compiled_regex_type = type(re.compile(''))
std_headers = { 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20150101 Firefox/20.0 (Chrome)', 'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7', 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', 'Accept-Encoding': 'gzip, deflate', 'Accept-Language': 'en-us,en;q=0.5', }
ENGLISH_MONTH_NAMES = [ 'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December']
def preferredencoding(): """Get preferred encoding.
Returns the best encoding scheme for the system, based on locale.getpreferredencoding() and some further tweaks. """
try: pref = locale.getpreferredencoding() 'TEST'.encode(pref) except: pref = 'UTF-8'
return pref
def write_json_file(obj, fn): """ Encode obj as JSON and write it to fn, atomically if possible """
fn = encodeFilename(fn) if sys.version_info < (3, 0) and sys.platform != 'win32': encoding = get_filesystem_encoding() # os.path.basename returns a bytes object, but NamedTemporaryFile # will fail if the filename contains non ascii characters unless we # use a unicode object path_basename = lambda f: os.path.basename(fn).decode(encoding) # the same for os.path.dirname path_dirname = lambda f: os.path.dirname(fn).decode(encoding) else: path_basename = os.path.basename path_dirname = os.path.dirname
args = { 'suffix': '.tmp', 'prefix': path_basename(fn) + '.', 'dir': path_dirname(fn), 'delete': False, }
# In Python 2.x, json.dump expects a bytestream. # In Python 3.x, it writes to a character stream if sys.version_info < (3, 0): args['mode'] = 'wb' else: args.update({ 'mode': 'w', 'encoding': 'utf-8', })
tf = tempfile.NamedTemporaryFile(**args)
try: with tf: json.dump(obj, tf) if sys.platform == 'win32': # Need to remove existing file on Windows, else os.rename raises # WindowsError or FileExistsError. try: os.unlink(fn) except OSError: pass os.rename(tf.name, fn) except: try: os.remove(tf.name) except OSError: pass raise
if sys.version_info >= (2, 7): def find_xpath_attr(node, xpath, key, val): """ Find the xpath xpath[@key=val] """ assert re.match(r'^[a-zA-Z-]+$', key) assert re.match(r'^[a-zA-Z0-9@\s:._-]*$', val) expr = xpath + "[@%s='%s']" % (key, val) return node.find(expr) else: def find_xpath_attr(node, xpath, key, val): # Here comes the crazy part: In 2.6, if the xpath is a unicode, # .//node does not match if a node is a direct child of . ! if isinstance(xpath, compat_str): xpath = xpath.encode('ascii')
for f in node.findall(xpath): if f.attrib.get(key) == val: return f return None
# On python2.6 the xml.etree.ElementTree.Element methods don't support # the namespace parameter
def xpath_with_ns(path, ns_map): components = [c.split(':') for c in path.split('/')] replaced = [] for c in components: if len(c) == 1: replaced.append(c[0]) else: ns, tag = c replaced.append('{%s}%s' % (ns_map[ns], tag)) return '/'.join(replaced)
def xpath_text(node, xpath, name=None, fatal=False): if sys.version_info < (2, 7): # Crazy 2.6 xpath = xpath.encode('ascii')
n = node.find(xpath) if n is None or n.text is None: if fatal: name = xpath if name is None else name raise ExtractorError('Could not find XML element %s' % name) else: return None return n.text
def get_element_by_id(id, html): """Return the content of the tag with the specified ID in the passed HTML document""" return get_element_by_attribute("id", id, html)
def get_element_by_attribute(attribute, value, html): """Return the content of the tag with the specified attribute in the passed HTML document"""
m = re.search(r'''(?xs)
<([a-zA-Z0-9:._-]+) (?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]+|="[^"]+"|='[^']+'))*? \s+%s=['"]?%s['"]? (?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]+|="[^"]+"|='[^']+'))*? \s*> (?P<content>.*?) </\1> ''' % (re.escape(attribute), re.escape(value)), html)
if not m: return None res = m.group('content')
if res.startswith('"') or res.startswith("'"): res = res[1:-1]
return unescapeHTML(res)
def clean_html(html): """Clean an HTML snippet into a readable string"""
if html is None: # Convenience for sanitizing descriptions etc. return html
# Newline vs <br /> html = html.replace('\n', ' ') html = re.sub(r'\s*<\s*br\s*/?\s*>\s*', '\n', html) html = re.sub(r'<\s*/\s*p\s*>\s*<\s*p[^>]*>', '\n', html) # Strip html tags html = re.sub('<.*?>', '', html) # Replace html entities html = unescapeHTML(html) return html.strip()
def sanitize_open(filename, open_mode): """Try to open the given filename, and slightly tweak it if this fails.
Attempts to open the given filename. If this fails, it tries to change the filename slightly, step by step, until it's either able to open it or it fails and raises a final exception, like the standard open() function.
It returns the tuple (stream, definitive_file_name). """
try: if filename == '-': if sys.platform == 'win32': import msvcrt msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY) return (sys.stdout.buffer if hasattr(sys.stdout, 'buffer') else sys.stdout, filename) stream = open(encodeFilename(filename), open_mode) return (stream, filename) except (IOError, OSError) as err: if err.errno in (errno.EACCES,): raise
# In case of error, try to remove win32 forbidden chars alt_filename = os.path.join( re.sub('[/<>:"\\|\\\\?\\*]', '#', path_part) for path_part in os.path.split(filename) ) if alt_filename == filename: raise else: # An exception here should be caught in the caller stream = open(encodeFilename(filename), open_mode) return (stream, alt_filename)
def timeconvert(timestr): """Convert RFC 2822 defined time string into system timestamp""" timestamp = None timetuple = email.utils.parsedate_tz(timestr) if timetuple is not None: timestamp = email.utils.mktime_tz(timetuple) return timestamp
def sanitize_filename(s, restricted=False, is_id=False): """Sanitizes a string so it could be used as part of a filename.
If restricted is set, use a stricter subset of allowed characters. Set is_id if this is not an arbitrary string, but an ID that should be kept if possible """
def replace_insane(char): if char == '?' or ord(char) < 32 or ord(char) == 127: return '' elif char == '"': return '' if restricted else '\'' elif char == ':': return '_-' if restricted else ' -' elif char in '\\/|*<>': return '_' if restricted and (char in '!&\'()[]{}$;`^,#' or char.isspace()): return '_' if restricted and ord(char) > 127: return '_' return char
# Handle timestamps s = re.sub(r'[0-9]+(?::[0-9]+)+', lambda m: m.group(0).replace(':', '_'), s) result = ''.join(map(replace_insane, s)) if not is_id: while '__' in result: result = result.replace('__', '_') result = result.strip('_') # Common case of "Foreign band name - English song title" if restricted and result.startswith('-_'): result = result[2:] if result.startswith('-'): result = '_' + result[len('-'):] result = result.lstrip('.') if not result: result = '_' return result
def orderedSet(iterable): """ Remove all duplicates from the input iterable """ res = [] for el in iterable: if el not in res: res.append(el) return res
def _htmlentity_transform(entity): """Transforms an HTML entity to a character.""" # Known non-numeric HTML entity if entity in compat_html_entities.name2codepoint: return compat_chr(compat_html_entities.name2codepoint[entity])
mobj = re.match(r'#(x?[0-9]+)', entity) if mobj is not None: numstr = mobj.group(1) if numstr.startswith('x'): base = 16 numstr = '0%s' % numstr else: base = 10 return compat_chr(int(numstr, base))
# Unknown entity in name, return its literal representation return ('&%s;' % entity)
def unescapeHTML(s): if s is None: return None assert type(s) == compat_str
return re.sub( r'&([^;]+);', lambda m: _htmlentity_transform(m.group(1)), s)
def encodeFilename(s, for_subprocess=False): """
@param s The name of the file """
assert type(s) == compat_str
# Python 3 has a Unicode API if sys.version_info >= (3, 0): return s
if sys.platform == 'win32' and sys.getwindowsversion()[0] >= 5: # Pass '' directly to use Unicode APIs on Windows 2000 and up # (Detecting Windows NT 4 is tricky because 'major >= 4' would # match Windows 9x series as well. Besides, NT 4 is obsolete.) if not for_subprocess: return s else: # For subprocess calls, encode with locale encoding # Refer to http://stackoverflow.com/a/9951851/35070 encoding = preferredencoding() else: encoding = sys.getfilesystemencoding() if encoding is None: encoding = 'utf-8' return s.encode(encoding, 'ignore')
def encodeArgument(s): if not isinstance(s, compat_str): # Legacy code that uses byte strings # Uncomment the following line after fixing all post processors # assert False, 'Internal error: %r should be of type %r, is %r' % (s, compat_str, type(s)) s = s.decode('ascii') return encodeFilename(s, True)
def decodeOption(optval): if optval is None: return optval if isinstance(optval, bytes): optval = optval.decode(preferredencoding())
assert isinstance(optval, compat_str) return optval
def formatSeconds(secs): if secs > 3600: return '%d:%02d:%02d' % (secs // 3600, (secs % 3600) // 60, secs % 60) elif secs > 60: return '%d:%02d' % (secs // 60, secs % 60) else: return '%d' % secs
def make_HTTPS_handler(params, **kwargs): opts_no_check_certificate = params.get('nocheckcertificate', False) if hasattr(ssl, 'create_default_context'): # Python >= 3.4 or 2.7.9 context = ssl.create_default_context(ssl.Purpose.SERVER_AUTH) if opts_no_check_certificate: context.check_hostname = False context.verify_mode = ssl.CERT_NONE try: return YoutubeDLHTTPSHandler(params, context=context, **kwargs) except TypeError: # Python 2.7.8 # (create_default_context present but HTTPSHandler has no context=) pass
if sys.version_info < (3, 2): return YoutubeDLHTTPSHandler(params, **kwargs) else: # Python < 3.4 context = ssl.SSLContext(ssl.PROTOCOL_TLSv1) context.verify_mode = (ssl.CERT_NONE if opts_no_check_certificate else ssl.CERT_REQUIRED) context.set_default_verify_paths() return YoutubeDLHTTPSHandler(params, context=context, **kwargs)
class ExtractorError(Exception): """Error during info extraction."""
def __init__(self, msg, tb=None, expected=False, cause=None, video_id=None): """ tb, if given, is the original traceback (so that it can be printed out).
If expected is set, this is a normal error message and most likely not a bug in youtube-dl. """
if sys.exc_info()[0] in (compat_urllib_error.URLError, socket.timeout, UnavailableVideoError): expected = True if video_id is not None: msg = video_id + ': ' + msg if cause: msg += ' (caused by %r)' % cause if not expected: if ytdl_is_updateable(): update_cmd = 'type youtube-dl -U to update' else: update_cmd = 'see https://yt-dl.org/update on how to update' msg += '; please report this issue on https://yt-dl.org/bug .' msg += ' Make sure you are using the latest version; %s.' % update_cmd msg += ' Be sure to call youtube-dl with the --verbose flag and include its complete output.' super(ExtractorError, self).__init__(msg)
self.traceback = tb self.exc_info = sys.exc_info() # preserve original exception self.cause = cause self.video_id = video_id
def format_traceback(self): if self.traceback is None: return None return ''.join(traceback.format_tb(self.traceback))
class UnsupportedError(ExtractorError): def __init__(self, url): super(UnsupportedError, self).__init__( 'Unsupported URL: %s' % url, expected=True) self.url = url
class RegexNotFoundError(ExtractorError): """Error when a regex didn't match""" pass
class DownloadError(Exception): """Download Error exception.
This exception may be thrown by FileDownloader objects if they are not configured to continue on errors. They will contain the appropriate error message. """
def __init__(self, msg, exc_info=None): """ exc_info, if given, is the original exception that caused the trouble (as returned by sys.exc_info()). """ super(DownloadError, self).__init__(msg) self.exc_info = exc_info
class SameFileError(Exception): """Same File exception.
This exception will be thrown by FileDownloader objects if they detect multiple files would have to be downloaded to the same file on disk. """
pass
class PostProcessingError(Exception): """Post Processing exception.
This exception may be raised by PostProcessor's .run() method to indicate an error in the postprocessing task. """
def __init__(self, msg): self.msg = msg
class MaxDownloadsReached(Exception): """ --max-downloads limit has been reached. """ pass
class UnavailableVideoError(Exception): """Unavailable Format exception.
This exception will be thrown when a video is requested in a format that is not available for that video. """
pass
class ContentTooShortError(Exception): """Content Too Short exception.
This exception may be raised by FileDownloader objects when a file they download is too small for what the server announced first, indicating the connection was probably interrupted. """
# Both in bytes downloaded = None expected = None
def __init__(self, downloaded, expected): self.downloaded = downloaded self.expected = expected
def _create_http_connection(ydl_handler, http_class, is_https, *args, **kwargs): hc = http_class(*args, **kwargs) source_address = ydl_handler._params.get('source_address') if source_address is not None: sa = (source_address, 0) if hasattr(hc, 'source_address'): # Python 2.7+ hc.source_address = sa else: # Python 2.6 def _hc_connect(self, *args, **kwargs): sock = compat_socket_create_connection( (self.host, self.port), self.timeout, sa) if is_https: self.sock = ssl.wrap_socket( sock, self.key_file, self.cert_file, ssl_version=ssl.PROTOCOL_TLSv1) else: self.sock = sock hc.connect = functools.partial(_hc_connect, hc)
return hc
class YoutubeDLHandler(compat_urllib_request.HTTPHandler): """Handler for HTTP requests and responses.
This class, when installed with an OpenerDirector, automatically adds the standard headers to every HTTP request and handles gzipped and deflated responses from web servers. If compression is to be avoided in a particular request, the original request in the program code only has to include the HTTP header "Youtubedl-No-Compression", which will be removed before making the real request.
Part of this code was copied from:
http://techknack.net/python-urllib2-handlers/
Andrew Rowls, the author of that code, agreed to release it to the public domain. """
def __init__(self, params, *args, **kwargs): compat_urllib_request.HTTPHandler.__init__(self, *args, **kwargs) self._params = params
def http_open(self, req): return self.do_open(functools.partial( _create_http_connection, self, compat_http_client.HTTPConnection, False), req)
@staticmethod def deflate(data): try: return zlib.decompress(data, -zlib.MAX_WBITS) except zlib.error: return zlib.decompress(data)
@staticmethod def addinfourl_wrapper(stream, headers, url, code): if hasattr(compat_urllib_request.addinfourl, 'getcode'): return compat_urllib_request.addinfourl(stream, headers, url, code) ret = compat_urllib_request.addinfourl(stream, headers, url) ret.code = code return ret
def http_request(self, req): for h, v in std_headers.items(): # Capitalize is needed because of Python bug 2275: http://bugs.python.org/issue2275 # The dict keys are capitalized because of this bug by urllib if h.capitalize() not in req.headers: req.add_header(h, v) if 'Youtubedl-no-compression' in req.headers: if 'Accept-encoding' in req.headers: del req.headers['Accept-encoding'] del req.headers['Youtubedl-no-compression']
if sys.version_info < (2, 7) and '#' in req.get_full_url(): # Python 2.6 is brain-dead when it comes to fragments req._Request__original = req._Request__original.partition('#')[0] req._Request__r_type = req._Request__r_type.partition('#')[0]
return req
def http_response(self, req, resp): old_resp = resp # gzip if resp.headers.get('Content-encoding', '') == 'gzip': content = resp.read() gz = gzip.GzipFile(fileobj=io.BytesIO(content), mode='rb') try: uncompressed = io.BytesIO(gz.read()) except IOError as original_ioerror: # There may be junk add the end of the file # See http://stackoverflow.com/q/4928560/35070 for details for i in range(1, 1024): try: gz = gzip.GzipFile(fileobj=io.BytesIO(content[:-i]), mode='rb') uncompressed = io.BytesIO(gz.read()) except IOError: continue break else: raise original_ioerror resp = self.addinfourl_wrapper(uncompressed, old_resp.headers, old_resp.url, old_resp.code) resp.msg = old_resp.msg # deflate if resp.headers.get('Content-encoding', '') == 'deflate': gz = io.BytesIO(self.deflate(resp.read())) resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code) resp.msg = old_resp.msg return resp
https_request = http_request https_response = http_response
class YoutubeDLHTTPSHandler(compat_urllib_request.HTTPSHandler): def __init__(self, params, https_conn_class=None, *args, **kwargs): compat_urllib_request.HTTPSHandler.__init__(self, *args, **kwargs) self._https_conn_class = https_conn_class or compat_http_client.HTTPSConnection self._params = params
def https_open(self, req): kwargs = {} if hasattr(self, '_context'): # python > 2.6 kwargs['context'] = self._context if hasattr(self, '_check_hostname'): # python 3.x kwargs['check_hostname'] = self._check_hostname return self.do_open(functools.partial( _create_http_connection, self, self._https_conn_class, True), req, **kwargs)
def parse_iso8601(date_str, delimiter='T', timezone=None): """ Return a UNIX timestamp from the given date """
if date_str is None: return None
if timezone is None: m = re.search( r'(\.[0-9]+)?(?:Z$| ?(?P<sign>\+|-)(?P<hours>[0-9]{2}):?(?P<minutes>[0-9]{2})$)', date_str) if not m: timezone = datetime.timedelta() else: date_str = date_str[:-len(m.group(0))] if not m.group('sign'): timezone = datetime.timedelta() else: sign = 1 if m.group('sign') == '+' else -1 timezone = datetime.timedelta( hours=sign * int(m.group('hours')), minutes=sign * int(m.group('minutes'))) date_format = '%Y-%m-%d{0}%H:%M:%S'.format(delimiter) dt = datetime.datetime.strptime(date_str, date_format) - timezone return calendar.timegm(dt.timetuple())
def unified_strdate(date_str, day_first=True): """Return a string with the date in the format YYYYMMDD"""
if date_str is None: return None upload_date = None # Replace commas date_str = date_str.replace(',', ' ') # %z (UTC offset) is only supported in python>=3.2 date_str = re.sub(r' ?(\+|-)[0-9]{2}:?[0-9]{2}$', '', date_str) # Remove AM/PM + timezone date_str = re.sub(r'(?i)\s*(?:AM|PM)(?:\s+[A-Z]+)?', '', date_str)
format_expressions = [ '%d %B %Y', '%d %b %Y', '%B %d %Y', '%b %d %Y', '%b %dst %Y %I:%M%p', '%b %dnd %Y %I:%M%p', '%b %dth %Y %I:%M%p', '%Y %m %d', '%Y-%m-%d', '%Y/%m/%d', '%Y/%m/%d %H:%M:%S', '%Y-%m-%d %H:%M:%S', '%Y-%m-%d %H:%M:%S.%f', '%d.%m.%Y %H:%M', '%d.%m.%Y %H.%M', '%Y-%m-%dT%H:%M:%SZ', '%Y-%m-%dT%H:%M:%S.%fZ', '%Y-%m-%dT%H:%M:%S.%f0Z', '%Y-%m-%dT%H:%M:%S', '%Y-%m-%dT%H:%M:%S.%f', '%Y-%m-%dT%H:%M', ] if day_first: format_expressions.extend([ '%d.%m.%Y', '%d/%m/%Y', '%d/%m/%y', '%d/%m/%Y %H:%M:%S', ]) else: format_expressions.extend([ '%m.%d.%Y', '%m/%d/%Y', '%m/%d/%y', '%m/%d/%Y %H:%M:%S', ]) for expression in format_expressions: try: upload_date = datetime.datetime.strptime(date_str, expression).strftime('%Y%m%d') except ValueError: pass if upload_date is None: timetuple = email.utils.parsedate_tz(date_str) if timetuple: upload_date = datetime.datetime(*timetuple[:6]).strftime('%Y%m%d') return upload_date
def determine_ext(url, default_ext='unknown_video'): if url is None: return default_ext guess = url.partition('?')[0].rpartition('.')[2] if re.match(r'^[A-Za-z0-9]+$', guess): return guess else: return default_ext
def subtitles_filename(filename, sub_lang, sub_format): return filename.rsplit('.', 1)[0] + '.' + sub_lang + '.' + sub_format
def date_from_str(date_str): """
Return a datetime object from a string in the format YYYYMMDD or (now|today)[+-][0-9](day|week|month|year)(s)?"""
today = datetime.date.today() if date_str in ('now', 'today'): return today if date_str == 'yesterday': return today - datetime.timedelta(days=1) match = re.match('(now|today)(?P<sign>[+-])(?P<time>\d+)(?P<unit>day|week|month|year)(s)?', date_str) if match is not None: sign = match.group('sign') time = int(match.group('time')) if sign == '-': time = -time unit = match.group('unit') # A bad aproximation? if unit == 'month': unit = 'day' time *= 30 elif unit == 'year': unit = 'day' time *= 365 unit += 's' delta = datetime.timedelta(**{unit: time}) return today + delta return datetime.datetime.strptime(date_str, "%Y%m%d").date()
def hyphenate_date(date_str): """
Convert a date in 'YYYYMMDD' format to 'YYYY-MM-DD' format"""
match = re.match(r'^(\d\d\d\d)(\d\d)(\d\d)$', date_str) if match is not None: return '-'.join(match.groups()) else: return date_str
class DateRange(object): """Represents a time interval between two dates"""
def __init__(self, start=None, end=None): """start and end must be strings in the format accepted by date""" if start is not None: self.start = date_from_str(start) else: self.start = datetime.datetime.min.date() if end is not None: self.end = date_from_str(end) else: self.end = datetime.datetime.max.date() if self.start > self.end: raise ValueError('Date range: "%s" , the start date must be before the end date' % self)
@classmethod def day(cls, day): """Returns a range that only contains the given day""" return cls(day, day)
def __contains__(self, date): """Check if the date is in the range""" if not isinstance(date, datetime.date): date = date_from_str(date) return self.start <= date <= self.end
def __str__(self): return '%s - %s' % (self.start.isoformat(), self.end.isoformat())
def platform_name(): """ Returns the platform name as a compat_str """ res = platform.platform() if isinstance(res, bytes): res = res.decode(preferredencoding())
assert isinstance(res, compat_str) return res
def _windows_write_string(s, out): """ Returns True if the string was written using special methods,
False if it has yet to be written out."""
# Adapted from http://stackoverflow.com/a/3259271/35070
import ctypes import ctypes.wintypes
WIN_OUTPUT_IDS = { 1: -11, 2: -12, }
try: fileno = out.fileno() except AttributeError: # If the output stream doesn't have a fileno, it's virtual return False except io.UnsupportedOperation: # Some strange Windows pseudo files? return False if fileno not in WIN_OUTPUT_IDS: return False
GetStdHandle = ctypes.WINFUNCTYPE( ctypes.wintypes.HANDLE, ctypes.wintypes.DWORD)( (b"GetStdHandle", ctypes.windll.kernel32)) h = GetStdHandle(WIN_OUTPUT_IDS[fileno])
WriteConsoleW = ctypes.WINFUNCTYPE( ctypes.wintypes.BOOL, ctypes.wintypes.HANDLE, ctypes.wintypes.LPWSTR, ctypes.wintypes.DWORD, ctypes.POINTER(ctypes.wintypes.DWORD), ctypes.wintypes.LPVOID)((b"WriteConsoleW", ctypes.windll.kernel32)) written = ctypes.wintypes.DWORD(0)
GetFileType = ctypes.WINFUNCTYPE(ctypes.wintypes.DWORD, ctypes.wintypes.DWORD)((b"GetFileType", ctypes.windll.kernel32)) FILE_TYPE_CHAR = 0x0002 FILE_TYPE_REMOTE = 0x8000 GetConsoleMode = ctypes.WINFUNCTYPE( ctypes.wintypes.BOOL, ctypes.wintypes.HANDLE, ctypes.POINTER(ctypes.wintypes.DWORD))( (b"GetConsoleMode", ctypes.windll.kernel32)) INVALID_HANDLE_VALUE = ctypes.wintypes.DWORD(-1).value
def not_a_console(handle): if handle == INVALID_HANDLE_VALUE or handle is None: return True return ((GetFileType(handle) & ~FILE_TYPE_REMOTE) != FILE_TYPE_CHAR or GetConsoleMode(handle, ctypes.byref(ctypes.wintypes.DWORD())) == 0)
if not_a_console(h): return False
def next_nonbmp_pos(s): try: return next(i for i, c in enumerate(s) if ord(c) > 0xffff) except StopIteration: return len(s)
while s: count = min(next_nonbmp_pos(s), 1024)
ret = WriteConsoleW( h, s, count if count else 2, ctypes.byref(written), None) if ret == 0: raise OSError('Failed to write string') if not count: # We just wrote a non-BMP character assert written.value == 2 s = s[1:] else: assert written.value > 0 s = s[written.value:] return True
def write_string(s, out=None, encoding=None): if out is None: out = sys.stderr assert type(s) == compat_str
if sys.platform == 'win32' and encoding is None and hasattr(out, 'fileno'): if _windows_write_string(s, out): return
if ('b' in getattr(out, 'mode', '') or sys.version_info[0] < 3): # Python 2 lies about mode of sys.stderr byt = s.encode(encoding or preferredencoding(), 'ignore') out.write(byt) elif hasattr(out, 'buffer'): enc = encoding or getattr(out, 'encoding', None) or preferredencoding() byt = s.encode(enc, 'ignore') out.buffer.write(byt) else: out.write(s) out.flush()
def bytes_to_intlist(bs): if not bs: return [] if isinstance(bs[0], int): # Python 3 return list(bs) else: return [ord(c) for c in bs]
def intlist_to_bytes(xs): if not xs: return b'' return struct_pack('%dB' % len(xs), *xs)
# Cross-platform file locking if sys.platform == 'win32': import ctypes.wintypes import msvcrt
class OVERLAPPED(ctypes.Structure): _fields_ = [ ('Internal', ctypes.wintypes.LPVOID), ('InternalHigh', ctypes.wintypes.LPVOID), ('Offset', ctypes.wintypes.DWORD), ('OffsetHigh', ctypes.wintypes.DWORD), ('hEvent', ctypes.wintypes.HANDLE), ]
kernel32 = ctypes.windll.kernel32 LockFileEx = kernel32.LockFileEx LockFileEx.argtypes = [ ctypes.wintypes.HANDLE, # hFile ctypes.wintypes.DWORD, # dwFlags ctypes.wintypes.DWORD, # dwReserved ctypes.wintypes.DWORD, # nNumberOfBytesToLockLow ctypes.wintypes.DWORD, # nNumberOfBytesToLockHigh ctypes.POINTER(OVERLAPPED) # Overlapped ] LockFileEx.restype = ctypes.wintypes.BOOL UnlockFileEx = kernel32.UnlockFileEx UnlockFileEx.argtypes = [ ctypes.wintypes.HANDLE, # hFile ctypes.wintypes.DWORD, # dwReserved ctypes.wintypes.DWORD, # nNumberOfBytesToLockLow ctypes.wintypes.DWORD, # nNumberOfBytesToLockHigh ctypes.POINTER(OVERLAPPED) # Overlapped ] UnlockFileEx.restype = ctypes.wintypes.BOOL whole_low = 0xffffffff whole_high = 0x7fffffff
def _lock_file(f, exclusive): overlapped = OVERLAPPED() overlapped.Offset = 0 overlapped.OffsetHigh = 0 overlapped.hEvent = 0 f._lock_file_overlapped_p = ctypes.pointer(overlapped) handle = msvcrt.get_osfhandle(f.fileno()) if not LockFileEx(handle, 0x2 if exclusive else 0x0, 0, whole_low, whole_high, f._lock_file_overlapped_p): raise OSError('Locking file failed: %r' % ctypes.FormatError())
def _unlock_file(f): assert f._lock_file_overlapped_p handle = msvcrt.get_osfhandle(f.fileno()) if not UnlockFileEx(handle, 0, whole_low, whole_high, f._lock_file_overlapped_p): raise OSError('Unlocking file failed: %r' % ctypes.FormatError())
else: import fcntl
def _lock_file(f, exclusive): fcntl.flock(f, fcntl.LOCK_EX if exclusive else fcntl.LOCK_SH)
def _unlock_file(f): fcntl.flock(f, fcntl.LOCK_UN)
class locked_file(object): def __init__(self, filename, mode, encoding=None): assert mode in ['r', 'a', 'w'] self.f = io.open(filename, mode, encoding=encoding) self.mode = mode
def __enter__(self): exclusive = self.mode != 'r' try: _lock_file(self.f, exclusive) except IOError: self.f.close() raise return self
def __exit__(self, etype, value, traceback): try: _unlock_file(self.f) finally: self.f.close()
def __iter__(self): return iter(self.f)
def write(self, *args): return self.f.write(*args)
def read(self, *args): return self.f.read(*args)
def get_filesystem_encoding(): encoding = sys.getfilesystemencoding() return encoding if encoding is not None else 'utf-8'
def shell_quote(args): quoted_args = [] encoding = get_filesystem_encoding() for a in args: if isinstance(a, bytes): # We may get a filename encoded with 'encodeFilename' a = a.decode(encoding) quoted_args.append(pipes.quote(a)) return ' '.join(quoted_args)
def takewhile_inclusive(pred, seq): """ Like itertools.takewhile, but include the latest evaluated element
(the first element so that Not pred(e)) """
for e in seq: yield e if not pred(e): return
def smuggle_url(url, data): """ Pass additional data in a URL for internal use. """
sdata = compat_urllib_parse.urlencode( {'__youtubedl_smuggle': json.dumps(data)}) return url + '#' + sdata
def unsmuggle_url(smug_url, default=None): if '#__youtubedl_smuggle' not in smug_url: return smug_url, default url, _, sdata = smug_url.rpartition('#') jsond = compat_parse_qs(sdata)['__youtubedl_smuggle'][0] data = json.loads(jsond) return url, data
def format_bytes(bytes): if bytes is None: return 'N/A' if type(bytes) is str: bytes = float(bytes) if bytes == 0.0: exponent = 0 else: exponent = int(math.log(bytes, 1024.0)) suffix = ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'][exponent] converted = float(bytes) / float(1024 ** exponent) return '%.2f%s' % (converted, suffix)
def parse_filesize(s): if s is None: return None
# The lower-case forms are of course incorrect and inofficial, # but we support those too _UNIT_TABLE = { 'B': 1, 'b': 1, 'KiB': 1024, 'KB': 1000, 'kB': 1024, 'Kb': 1000, 'MiB': 1024 ** 2, 'MB': 1000 ** 2, 'mB': 1024 ** 2, 'Mb': 1000 ** 2, 'GiB': 1024 ** 3, 'GB': 1000 ** 3, 'gB': 1024 ** 3, 'Gb': 1000 ** 3, 'TiB': 1024 ** 4, 'TB': 1000 ** 4, 'tB': 1024 ** 4, 'Tb': 1000 ** 4, 'PiB': 1024 ** 5, 'PB': 1000 ** 5, 'pB': 1024 ** 5, 'Pb': 1000 ** 5, 'EiB': 1024 ** 6, 'EB': 1000 ** 6, 'eB': 1024 ** 6, 'Eb': 1000 ** 6, 'ZiB': 1024 ** 7, 'ZB': 1000 ** 7, 'zB': 1024 ** 7, 'Zb': 1000 ** 7, 'YiB': 1024 ** 8, 'YB': 1000 ** 8, 'yB': 1024 ** 8, 'Yb': 1000 ** 8, }
units_re = '|'.join(re.escape(u) for u in _UNIT_TABLE) m = re.match( r'(?P<num>[0-9]+(?:[,.][0-9]*)?)\s*(?P<unit>%s)' % units_re, s) if not m: return None
num_str = m.group('num').replace(',', '.') mult = _UNIT_TABLE[m.group('unit')] return int(float(num_str) * mult)
def month_by_name(name): """ Return the number of a month by (locale-independently) English name """
try: return ENGLISH_MONTH_NAMES.index(name) + 1 except ValueError: return None
def month_by_abbreviation(abbrev): """ Return the number of a month by (locale-independently) English
abbreviations """
try: return [s[:3] for s in ENGLISH_MONTH_NAMES].index(abbrev) + 1 except ValueError: return None
def fix_xml_ampersands(xml_str): """Replace all the '&' by '&' in XML""" return re.sub( r'&(?!amp;|lt;|gt;|apos;|quot;|#x[0-9a-fA-F]{,4};|#[0-9]{,4};)', '&', xml_str)
def setproctitle(title): assert isinstance(title, compat_str) try: libc = ctypes.cdll.LoadLibrary("libc.so.6") except OSError: return title_bytes = title.encode('utf-8') buf = ctypes.create_string_buffer(len(title_bytes)) buf.value = title_bytes try: libc.prctl(15, buf, 0, 0, 0) except AttributeError: return # Strange libc, just skip this
def remove_start(s, start): if s.startswith(start): return s[len(start):] return s
def remove_end(s, end): if s.endswith(end): return s[:-len(end)] return s
def url_basename(url): path = compat_urlparse.urlparse(url).path return path.strip('/').split('/')[-1]
class HEADRequest(compat_urllib_request.Request): def get_method(self): return "HEAD"
def int_or_none(v, scale=1, default=None, get_attr=None, invscale=1): if get_attr: if v is not None: v = getattr(v, get_attr, None) if v == '': v = None return default if v is None else (int(v) * invscale // scale)
def str_or_none(v, default=None): return default if v is None else compat_str(v)
def str_to_int(int_str): """ A more relaxed version of int_or_none """ if int_str is None: return None int_str = re.sub(r'[,\.\+]', '', int_str) return int(int_str)
def float_or_none(v, scale=1, invscale=1, default=None): return default if v is None else (float(v) * invscale / scale)
def parse_duration(s): if not isinstance(s, compat_basestring): return None
s = s.strip()
m = re.match( r'''(?ix)(?:P?T)?
(?: (?P<only_mins>[0-9.]+)\s*(?:mins?|minutes?)\s*| (?P<only_hours>[0-9.]+)\s*(?:hours?)|
\s*(?P<hours_reversed>[0-9]+)\s*(?:[:h]|hours?)\s*(?P<mins_reversed>[0-9]+)\s*(?:[:m]|mins?|minutes?)\s*| (?: (?: (?:(?P<days>[0-9]+)\s*(?:[:d]|days?)\s*)? (?P<hours>[0-9]+)\s*(?:[:h]|hours?)\s* )? (?P<mins>[0-9]+)\s*(?:[:m]|mins?|minutes?)\s* )? (?P<secs>[0-9]+)(?P<ms>\.[0-9]+)?\s*(?:s|secs?|seconds?)? )$''', s)
if not m: return None res = 0 if m.group('only_mins'): return float_or_none(m.group('only_mins'), invscale=60) if m.group('only_hours'): return float_or_none(m.group('only_hours'), invscale=60 * 60) if m.group('secs'): res += int(m.group('secs')) if m.group('mins_reversed'): res += int(m.group('mins_reversed')) * 60 if m.group('mins'): res += int(m.group('mins')) * 60 if m.group('hours'): res += int(m.group('hours')) * 60 * 60 if m.group('hours_reversed'): res += int(m.group('hours_reversed')) * 60 * 60 if m.group('days'): res += int(m.group('days')) * 24 * 60 * 60 if m.group('ms'): res += float(m.group('ms')) return res
def prepend_extension(filename, ext): name, real_ext = os.path.splitext(filename) return '{0}.{1}{2}'.format(name, ext, real_ext)
def check_executable(exe, args=[]): """ Checks if the given binary is installed somewhere in PATH, and returns its name.
args can be a list of arguments for a short output (like -version) """
try: subprocess.Popen([exe] + args, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate() except OSError: return False return exe
def get_exe_version(exe, args=['--version'], version_re=None, unrecognized='present'): """ Returns the version of the specified executable,
or False if the executable is not present """
try: out, _ = subprocess.Popen( [exe] + args, stdout=subprocess.PIPE, stderr=subprocess.STDOUT).communicate() except OSError: return False if isinstance(out, bytes): # Python 2.x out = out.decode('ascii', 'ignore') return detect_exe_version(out, version_re, unrecognized)
def detect_exe_version(output, version_re=None, unrecognized='present'): assert isinstance(output, compat_str) if version_re is None: version_re = r'version\s+([-0-9._a-zA-Z]+)' m = re.search(version_re, output) if m: return m.group(1) else: return unrecognized
class PagedList(object): def __len__(self): # This is only useful for tests return len(self.getslice())
class OnDemandPagedList(PagedList): def __init__(self, pagefunc, pagesize): self._pagefunc = pagefunc self._pagesize = pagesize
def getslice(self, start=0, end=None): res = [] for pagenum in itertools.count(start // self._pagesize): firstid = pagenum * self._pagesize nextfirstid = pagenum * self._pagesize + self._pagesize if start >= nextfirstid: continue
page_results = list(self._pagefunc(pagenum))
startv = ( start % self._pagesize if firstid <= start < nextfirstid else 0)
endv = ( ((end - 1) % self._pagesize) + 1 if (end is not None and firstid <= end <= nextfirstid) else None)
if startv != 0 or endv is not None: page_results = page_results[startv:endv] res.extend(page_results)
# A little optimization - if current page is not "full", ie. does # not contain page_size videos then we can assume that this page # is the last one - there are no more ids on further pages - # i.e. no need to query again. if len(page_results) + startv < self._pagesize: break
# If we got the whole page, but the next page is not interesting, # break out early as well if end == nextfirstid: break return res
class InAdvancePagedList(PagedList): def __init__(self, pagefunc, pagecount, pagesize): self._pagefunc = pagefunc self._pagecount = pagecount self._pagesize = pagesize
def getslice(self, start=0, end=None): res = [] start_page = start // self._pagesize end_page = ( self._pagecount if end is None else (end // self._pagesize + 1)) skip_elems = start - start_page * self._pagesize only_more = None if end is None else end - start for pagenum in range(start_page, end_page): page = list(self._pagefunc(pagenum)) if skip_elems: page = page[skip_elems:] skip_elems = None if only_more is not None: if len(page) < only_more: only_more -= len(page) else: page = page[:only_more] res.extend(page) break res.extend(page) return res
def uppercase_escape(s): unicode_escape = codecs.getdecoder('unicode_escape') return re.sub( r'\\U[0-9a-fA-F]{8}', lambda m: unicode_escape(m.group(0))[0], s)
def escape_rfc3986(s): """Escape non-ASCII characters as suggested by RFC 3986""" if sys.version_info < (3, 0) and isinstance(s, compat_str): s = s.encode('utf-8') return compat_urllib_parse.quote(s, b"%/;:@&=+$,!~*'()?#[]")
def escape_url(url): """Escape URL as suggested by RFC 3986""" url_parsed = compat_urllib_parse_urlparse(url) return url_parsed._replace( path=escape_rfc3986(url_parsed.path), params=escape_rfc3986(url_parsed.params), query=escape_rfc3986(url_parsed.query), fragment=escape_rfc3986(url_parsed.fragment) ).geturl()
try: struct.pack('!I', 0) except TypeError: # In Python 2.6 (and some 2.7 versions), struct requires a bytes argument def struct_pack(spec, *args): if isinstance(spec, compat_str): spec = spec.encode('ascii') return struct.pack(spec, *args)
def struct_unpack(spec, *args): if isinstance(spec, compat_str): spec = spec.encode('ascii') return struct.unpack(spec, *args) else: struct_pack = struct.pack struct_unpack = struct.unpack
def read_batch_urls(batch_fd): def fixup(url): if not isinstance(url, compat_str): url = url.decode('utf-8', 'replace') BOM_UTF8 = '\xef\xbb\xbf' if url.startswith(BOM_UTF8): url = url[len(BOM_UTF8):] url = url.strip() if url.startswith(('#', ';', ']')): return False return url
with contextlib.closing(batch_fd) as fd: return [url for url in map(fixup, fd) if url]
def urlencode_postdata(*args, **kargs): return compat_urllib_parse.urlencode(*args, **kargs).encode('ascii')
try: etree_iter = xml.etree.ElementTree.Element.iter except AttributeError: # Python <=2.6 etree_iter = lambda n: n.findall('.//*')
def parse_xml(s): class TreeBuilder(xml.etree.ElementTree.TreeBuilder): def doctype(self, name, pubid, system): pass # Ignore doctypes
parser = xml.etree.ElementTree.XMLParser(target=TreeBuilder()) kwargs = {'parser': parser} if sys.version_info >= (2, 7) else {} tree = xml.etree.ElementTree.XML(s.encode('utf-8'), **kwargs) # Fix up XML parser in Python 2.x if sys.version_info < (3, 0): for n in etree_iter(tree): if n.text is not None: if not isinstance(n.text, compat_str): n.text = n.text.decode('utf-8') return tree
US_RATINGS = { 'G': 0, 'PG': 10, 'PG-13': 13, 'R': 16, 'NC': 18, }
def parse_age_limit(s): if s is None: return None m = re.match(r'^(?P<age>\d{1,2})\+?$', s) return int(m.group('age')) if m else US_RATINGS.get(s, None)
def strip_jsonp(code): return re.sub( r'(?s)^[a-zA-Z0-9_]+\s*\(\s*(.*)\);?\s*?(?://[^\n]*)*$', r'\1', code)
def js_to_json(code): def fix_kv(m): v = m.group(0) if v in ('true', 'false', 'null'): return v if v.startswith('"'): return v if v.startswith("'"): v = v[1:-1] v = re.sub(r"\\\\|\\'|\"", lambda m: { '\\\\': '\\\\', "\\'": "'", '"': '\\"', }[m.group(0)], v) return '"%s"' % v
res = re.sub(r'''(?x)
"(?:[^"\\]*(?:\\\\|\\['"nu]))*[^"\\]*"| '(?:[^'\\]*(?:\\\\|\\['"nu]))*[^'\\]*'| [a-zA-Z_][.a-zA-Z_0-9]* ''', fix_kv, code)
res = re.sub(r',(\s*\])', lambda m: m.group(1), res) return res
def qualities(quality_ids): """ Get a numeric quality value out of a list of possible values """ def q(qid): try: return quality_ids.index(qid) except ValueError: return -1 return q
DEFAULT_OUTTMPL = '%(title)s-%(id)s.%(ext)s'
def limit_length(s, length): """ Add ellipses to overly long strings """ if s is None: return None ELLIPSES = '...' if len(s) > length: return s[:length - len(ELLIPSES)] + ELLIPSES return s
def version_tuple(v): return tuple(int(e) for e in re.split(r'[-.]', v))
def is_outdated_version(version, limit, assume_new=True): if not version: return not assume_new try: return version_tuple(version) < version_tuple(limit) except ValueError: return not assume_new
def ytdl_is_updateable(): """ Returns if youtube-dl can be updated with -U """ from zipimport import zipimporter
return isinstance(globals().get('__loader__'), zipimporter) or hasattr(sys, 'frozen')
def args_to_str(args): # Get a short string representation for a subprocess command return ' '.join(shlex_quote(a) for a in args)
def mimetype2ext(mt): _, _, res = mt.rpartition('/')
return { 'x-ms-wmv': 'wmv', 'x-mp4-fragmented': 'mp4', }.get(res, res)
def urlhandle_detect_ext(url_handle): try: url_handle.headers getheader = lambda h: url_handle.headers[h] except AttributeError: # Python < 3 getheader = url_handle.info().getheader
cd = getheader('Content-Disposition') if cd: m = re.match(r'attachment;\s*filename="(?P<filename>[^"]+)"', cd) if m: e = determine_ext(m.group('filename'), default_ext=None) if e: return e
return mimetype2ext(getheader('Content-Type'))
def age_restricted(content_limit, age_limit): """ Returns True iff the content should be blocked """
if age_limit is None: # No limit set return False if content_limit is None: return False # Content available for everyone return age_limit < content_limit
def is_html(first_bytes): """ Detect whether a file contains HTML by examining its first bytes. """
BOMS = [ (b'\xef\xbb\xbf', 'utf-8'), (b'\x00\x00\xfe\xff', 'utf-32-be'), (b'\xff\xfe\x00\x00', 'utf-32-le'), (b'\xff\xfe', 'utf-16-le'), (b'\xfe\xff', 'utf-16-be'), ] for bom, enc in BOMS: if first_bytes.startswith(bom): s = first_bytes[len(bom):].decode(enc, 'replace') break else: s = first_bytes.decode('utf-8', 'replace')
return re.match(r'^\s*<', s)
def determine_protocol(info_dict): protocol = info_dict.get('protocol') if protocol is not None: return protocol
url = info_dict['url'] if url.startswith('rtmp'): return 'rtmp' elif url.startswith('mms'): return 'mms' elif url.startswith('rtsp'): return 'rtsp'
ext = determine_ext(url) if ext == 'm3u8': return 'm3u8' elif ext == 'f4m': return 'f4m'
return compat_urllib_parse_urlparse(url).scheme
def render_table(header_row, data): """ Render a list of rows, each as a list of values """ table = [header_row] + data max_lens = [max(len(compat_str(v)) for v in col) for col in zip(*table)] format_str = ' '.join('%-' + compat_str(ml + 1) + 's' for ml in max_lens[:-1]) + '%s' return '\n'.join(format_str % tuple(row) for row in table)
def _match_one(filter_part, dct): COMPARISON_OPERATORS = { '<': operator.lt, '<=': operator.le, '>': operator.gt, '>=': operator.ge, '=': operator.eq, '!=': operator.ne, } operator_rex = re.compile(r'''(?x)\s*
(?P<key>[a-z_]+) \s*(?P<op>%s)(?P<none_inclusive>\s*\?)?\s* (?: (?P<intval>[0-9.]+(?:[kKmMgGtTpPeEzZyY]i?[Bb]?)?)| (?P<strval>(?![0-9.])[a-z0-9A-Z]*) ) \s*$ ''' % '|'.join(map(re.escape, COMPARISON_OPERATORS.keys())))
m = operator_rex.search(filter_part) if m: op = COMPARISON_OPERATORS[m.group('op')] if m.group('strval') is not None: if m.group('op') not in ('=', '!='): raise ValueError( 'Operator %s does not support string values!' % m.group('op')) comparison_value = m.group('strval') else: try: comparison_value = int(m.group('intval')) except ValueError: comparison_value = parse_filesize(m.group('intval')) if comparison_value is None: comparison_value = parse_filesize(m.group('intval') + 'B') if comparison_value is None: raise ValueError( 'Invalid integer value %r in filter part %r' % ( m.group('intval'), filter_part)) actual_value = dct.get(m.group('key')) if actual_value is None: return m.group('none_inclusive') return op(actual_value, comparison_value)
UNARY_OPERATORS = { '': lambda v: v is not None, '!': lambda v: v is None, } operator_rex = re.compile(r'''(?x)\s*
(?P<op>%s)\s*(?P<key>[a-z_]+) \s*$ ''' % '|'.join(map(re.escape, UNARY_OPERATORS.keys())))
m = operator_rex.search(filter_part) if m: op = UNARY_OPERATORS[m.group('op')] actual_value = dct.get(m.group('key')) return op(actual_value)
raise ValueError('Invalid filter part %r' % filter_part)
def match_str(filter_str, dct): """ Filter a dictionary with a simple string syntax. Returns True (=passes filter) or false """
return all( _match_one(filter_part, dct) for filter_part in filter_str.split('&'))
def match_filter_func(filter_str): def _match_func(info_dict): if match_str(filter_str, info_dict): return None else: video_title = info_dict.get('title', info_dict.get('id', 'video')) return '%s does not pass filter %s, skipping ..' % (video_title, filter_str) return _match_func
class PerRequestProxyHandler(compat_urllib_request.ProxyHandler): def __init__(self, proxies=None): # Set default handlers for type in ('http', 'https'): setattr(self, '%s_open' % type, lambda r, proxy='__noproxy__', type=type, meth=self.proxy_open: meth(r, proxy, type)) return compat_urllib_request.ProxyHandler.__init__(self, proxies)
def proxy_open(self, req, proxy, type): req_proxy = req.headers.get('Ytdl-request-proxy') if req_proxy is not None: proxy = req_proxy del req.headers['Ytdl-request-proxy']
if proxy == '__noproxy__': return None # No Proxy return compat_urllib_request.ProxyHandler.proxy_open( self, req, proxy, type)
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