mirror of
https://code.hackerspace.pl/q3k/youtube-dl
synced 2025-03-16 11:43:02 +00:00
1459 lines
46 KiB
Python
1459 lines
46 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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import calendar
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import codecs
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import contextlib
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import ctypes
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import datetime
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import email.utils
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import errno
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import getpass
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import gzip
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import itertools
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import io
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import json
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import locale
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import math
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import os
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import pipes
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import platform
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import re
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import ssl
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import socket
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import struct
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import subprocess
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import sys
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import traceback
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import xml.etree.ElementTree
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import zlib
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try:
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import urllib.request as compat_urllib_request
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except ImportError: # Python 2
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import urllib2 as compat_urllib_request
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try:
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import urllib.error as compat_urllib_error
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except ImportError: # Python 2
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import urllib2 as compat_urllib_error
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try:
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import urllib.parse as compat_urllib_parse
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except ImportError: # Python 2
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import urllib as compat_urllib_parse
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try:
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from urllib.parse import urlparse as compat_urllib_parse_urlparse
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except ImportError: # Python 2
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from urlparse import urlparse as compat_urllib_parse_urlparse
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try:
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import urllib.parse as compat_urlparse
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except ImportError: # Python 2
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import urlparse as compat_urlparse
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try:
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import http.cookiejar as compat_cookiejar
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except ImportError: # Python 2
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import cookielib as compat_cookiejar
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try:
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import html.entities as compat_html_entities
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except ImportError: # Python 2
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import htmlentitydefs as compat_html_entities
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try:
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import html.parser as compat_html_parser
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except ImportError: # Python 2
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import HTMLParser as compat_html_parser
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try:
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import http.client as compat_http_client
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except ImportError: # Python 2
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import httplib as compat_http_client
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try:
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from urllib.error import HTTPError as compat_HTTPError
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except ImportError: # Python 2
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from urllib2 import HTTPError as compat_HTTPError
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try:
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from urllib.request import urlretrieve as compat_urlretrieve
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except ImportError: # Python 2
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from urllib import urlretrieve as compat_urlretrieve
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try:
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from subprocess import DEVNULL
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compat_subprocess_get_DEVNULL = lambda: DEVNULL
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except ImportError:
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compat_subprocess_get_DEVNULL = lambda: open(os.path.devnull, 'w')
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try:
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from urllib.parse import parse_qs as compat_parse_qs
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except ImportError: # Python 2
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# HACK: The following is the correct parse_qs implementation from cpython 3's stdlib.
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# Python 2's version is apparently totally broken
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def _unquote(string, encoding='utf-8', errors='replace'):
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if string == '':
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return string
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res = string.split('%')
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if len(res) == 1:
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return string
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if encoding is None:
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encoding = 'utf-8'
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if errors is None:
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errors = 'replace'
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# pct_sequence: contiguous sequence of percent-encoded bytes, decoded
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pct_sequence = b''
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string = res[0]
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for item in res[1:]:
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try:
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if not item:
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raise ValueError
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pct_sequence += item[:2].decode('hex')
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rest = item[2:]
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if not rest:
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# This segment was just a single percent-encoded character.
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# May be part of a sequence of code units, so delay decoding.
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# (Stored in pct_sequence).
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continue
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except ValueError:
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rest = '%' + item
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# Encountered non-percent-encoded characters. Flush the current
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# pct_sequence.
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string += pct_sequence.decode(encoding, errors) + rest
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pct_sequence = b''
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if pct_sequence:
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# Flush the final pct_sequence
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string += pct_sequence.decode(encoding, errors)
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return string
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def _parse_qsl(qs, keep_blank_values=False, strict_parsing=False,
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encoding='utf-8', errors='replace'):
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qs, _coerce_result = qs, unicode
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pairs = [s2 for s1 in qs.split('&') for s2 in s1.split(';')]
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r = []
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for name_value in pairs:
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if not name_value and not strict_parsing:
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continue
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nv = name_value.split('=', 1)
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if len(nv) != 2:
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if strict_parsing:
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raise ValueError("bad query field: %r" % (name_value,))
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# Handle case of a control-name with no equal sign
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if keep_blank_values:
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nv.append('')
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else:
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continue
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if len(nv[1]) or keep_blank_values:
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name = nv[0].replace('+', ' ')
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name = _unquote(name, encoding=encoding, errors=errors)
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name = _coerce_result(name)
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value = nv[1].replace('+', ' ')
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value = _unquote(value, encoding=encoding, errors=errors)
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value = _coerce_result(value)
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r.append((name, value))
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return r
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def compat_parse_qs(qs, keep_blank_values=False, strict_parsing=False,
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encoding='utf-8', errors='replace'):
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parsed_result = {}
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pairs = _parse_qsl(qs, keep_blank_values, strict_parsing,
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encoding=encoding, errors=errors)
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for name, value in pairs:
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if name in parsed_result:
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parsed_result[name].append(value)
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else:
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parsed_result[name] = [value]
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return parsed_result
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try:
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compat_str = unicode # Python 2
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except NameError:
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compat_str = str
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try:
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compat_chr = unichr # Python 2
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except NameError:
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compat_chr = chr
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try:
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from xml.etree.ElementTree import ParseError as compat_xml_parse_error
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except ImportError: # Python 2.6
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from xml.parsers.expat import ExpatError as compat_xml_parse_error
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def compat_ord(c):
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if type(c) is int: return c
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else: return ord(c)
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# This is not clearly defined otherwise
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compiled_regex_type = type(re.compile(''))
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std_headers = {
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'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20100101 Firefox/10.0 (Chrome)',
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'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
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'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
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'Accept-Encoding': 'gzip, deflate',
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'Accept-Language': 'en-us,en;q=0.5',
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}
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def preferredencoding():
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"""Get preferred encoding.
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Returns the best encoding scheme for the system, based on
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locale.getpreferredencoding() and some further tweaks.
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"""
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try:
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pref = locale.getpreferredencoding()
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u'TEST'.encode(pref)
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except:
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pref = 'UTF-8'
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return pref
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if sys.version_info < (3,0):
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def compat_print(s):
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print(s.encode(preferredencoding(), 'xmlcharrefreplace'))
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else:
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def compat_print(s):
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assert type(s) == type(u'')
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print(s)
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# In Python 2.x, json.dump expects a bytestream.
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# In Python 3.x, it writes to a character stream
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if sys.version_info < (3,0):
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def write_json_file(obj, fn):
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with open(fn, 'wb') as f:
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json.dump(obj, f)
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else:
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def write_json_file(obj, fn):
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with open(fn, 'w', encoding='utf-8') as f:
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json.dump(obj, f)
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if sys.version_info >= (2,7):
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def find_xpath_attr(node, xpath, key, val):
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""" Find the xpath xpath[@key=val] """
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assert re.match(r'^[a-zA-Z]+$', key)
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assert re.match(r'^[a-zA-Z0-9@\s:._]*$', val)
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expr = xpath + u"[@%s='%s']" % (key, val)
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return node.find(expr)
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else:
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def find_xpath_attr(node, xpath, key, val):
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for f in node.findall(xpath):
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if f.attrib.get(key) == val:
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return f
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return None
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# On python2.6 the xml.etree.ElementTree.Element methods don't support
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# the namespace parameter
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def xpath_with_ns(path, ns_map):
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components = [c.split(':') for c in path.split('/')]
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replaced = []
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for c in components:
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if len(c) == 1:
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replaced.append(c[0])
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else:
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ns, tag = c
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replaced.append('{%s}%s' % (ns_map[ns], tag))
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return '/'.join(replaced)
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def htmlentity_transform(matchobj):
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"""Transforms an HTML entity to a character.
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This function receives a match object and is intended to be used with
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the re.sub() function.
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"""
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entity = matchobj.group(1)
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# Known non-numeric HTML entity
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if entity in compat_html_entities.name2codepoint:
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return compat_chr(compat_html_entities.name2codepoint[entity])
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mobj = re.match(u'(?u)#(x?\\d+)', entity)
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if mobj is not None:
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numstr = mobj.group(1)
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if numstr.startswith(u'x'):
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base = 16
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numstr = u'0%s' % numstr
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else:
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base = 10
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return compat_chr(int(numstr, base))
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# Unknown entity in name, return its literal representation
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return (u'&%s;' % entity)
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compat_html_parser.locatestarttagend = re.compile(r"""<[a-zA-Z][-.a-zA-Z0-9:_]*(?:\s+(?:(?<=['"\s])[^\s/>][^\s/=>]*(?:\s*=+\s*(?:'[^']*'|"[^"]*"|(?!['"])[^>\s]*))?\s*)*)?\s*""", re.VERBOSE) # backport bugfix
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class BaseHTMLParser(compat_html_parser.HTMLParser):
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def __init(self):
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compat_html_parser.HTMLParser.__init__(self)
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self.html = None
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def loads(self, html):
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self.html = html
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self.feed(html)
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self.close()
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class AttrParser(BaseHTMLParser):
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"""Modified HTMLParser that isolates a tag with the specified attribute"""
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def __init__(self, attribute, value):
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self.attribute = attribute
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self.value = value
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self.result = None
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self.started = False
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self.depth = {}
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self.watch_startpos = False
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self.error_count = 0
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BaseHTMLParser.__init__(self)
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def error(self, message):
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if self.error_count > 10 or self.started:
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raise compat_html_parser.HTMLParseError(message, self.getpos())
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self.rawdata = '\n'.join(self.html.split('\n')[self.getpos()[0]:]) # skip one line
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self.error_count += 1
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self.goahead(1)
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def handle_starttag(self, tag, attrs):
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attrs = dict(attrs)
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if self.started:
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self.find_startpos(None)
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if self.attribute in attrs and attrs[self.attribute] == self.value:
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self.result = [tag]
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self.started = True
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self.watch_startpos = True
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if self.started:
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if not tag in self.depth: self.depth[tag] = 0
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self.depth[tag] += 1
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def handle_endtag(self, tag):
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if self.started:
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if tag in self.depth: self.depth[tag] -= 1
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if self.depth[self.result[0]] == 0:
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self.started = False
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self.result.append(self.getpos())
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def find_startpos(self, x):
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"""Needed to put the start position of the result (self.result[1])
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after the opening tag with the requested id"""
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if self.watch_startpos:
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self.watch_startpos = False
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self.result.append(self.getpos())
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handle_entityref = handle_charref = handle_data = handle_comment = \
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handle_decl = handle_pi = unknown_decl = find_startpos
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def get_result(self):
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if self.result is None:
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return None
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if len(self.result) != 3:
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return None
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lines = self.html.split('\n')
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lines = lines[self.result[1][0]-1:self.result[2][0]]
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lines[0] = lines[0][self.result[1][1]:]
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if len(lines) == 1:
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lines[-1] = lines[-1][:self.result[2][1]-self.result[1][1]]
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lines[-1] = lines[-1][:self.result[2][1]]
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return '\n'.join(lines).strip()
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# Hack for https://github.com/rg3/youtube-dl/issues/662
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if sys.version_info < (2, 7, 3):
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AttrParser.parse_endtag = (lambda self, i:
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i + len("</scr'+'ipt>")
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if self.rawdata[i:].startswith("</scr'+'ipt>")
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else compat_html_parser.HTMLParser.parse_endtag(self, i))
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def get_element_by_id(id, html):
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"""Return the content of the tag with the specified ID in the passed HTML document"""
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return get_element_by_attribute("id", id, html)
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def get_element_by_attribute(attribute, value, html):
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"""Return the content of the tag with the specified attribute in the passed HTML document"""
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parser = AttrParser(attribute, value)
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try:
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parser.loads(html)
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except compat_html_parser.HTMLParseError:
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pass
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return parser.get_result()
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class MetaParser(BaseHTMLParser):
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"""
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Modified HTMLParser that isolates a meta tag with the specified name
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attribute.
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"""
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def __init__(self, name):
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BaseHTMLParser.__init__(self)
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self.name = name
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self.content = None
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self.result = None
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def handle_starttag(self, tag, attrs):
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if tag != 'meta':
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return
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attrs = dict(attrs)
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if attrs.get('name') == self.name:
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self.result = attrs.get('content')
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def get_result(self):
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return self.result
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def get_meta_content(name, html):
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"""
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Return the content attribute from the meta tag with the given name attribute.
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"""
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parser = MetaParser(name)
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try:
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parser.loads(html)
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except compat_html_parser.HTMLParseError:
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pass
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return parser.get_result()
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def clean_html(html):
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"""Clean an HTML snippet into a readable string"""
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# Newline vs <br />
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html = html.replace('\n', ' ')
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html = re.sub(r'\s*<\s*br\s*/?\s*>\s*', '\n', html)
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html = re.sub(r'<\s*/\s*p\s*>\s*<\s*p[^>]*>', '\n', html)
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# Strip html tags
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html = re.sub('<.*?>', '', html)
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# Replace html entities
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html = unescapeHTML(html)
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return html.strip()
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def sanitize_open(filename, open_mode):
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"""Try to open the given filename, and slightly tweak it if this fails.
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Attempts to open the given filename. If this fails, it tries to change
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the filename slightly, step by step, until it&# |