mirror of
https://github.com/yt-dlp/yt-dlp.git
synced 2024-11-22 02:15:12 +00:00
722 lines
24 KiB
Python
722 lines
24 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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import errno
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import gzip
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import io
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import json
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import locale
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import os
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import re
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import sys
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import traceback
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import zlib
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import email.utils
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import socket
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import datetime
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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 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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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',
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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]+$', key)
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assert re.match(r'^[a-zA-Z@\s]*$', 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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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 AttrParser(compat_html_parser.HTMLParser):
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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.html = None
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self.watch_startpos = False
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self.error_count = 0
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compat_html_parser.HTMLParser.__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 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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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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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's either able to open it
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or it fails and raises a final exception, like the standard open()
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function.
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It returns the tuple (stream, definitive_file_name).
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"""
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try:
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if filename == u'-':
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if sys.platform == 'win32':
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import msvcrt
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msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
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return (sys.stdout.buffer if hasattr(sys.stdout, 'buffer') else sys.stdout, filename)
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stream = open(encodeFilename(filename), open_mode)
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return (stream, filename)
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except (IOError, OSError) as err:
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if err.errno in (errno.EACCES,):
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raise
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# In case of error, try to remove win32 forbidden chars
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alt_filename = os.path.join(
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re.sub(u'[/<>:"\\|\\\\?\\*]', u'#', path_part)
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for path_part in os.path.split(filename)
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)
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if alt_filename == filename:
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raise
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else:
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# An exception here should be caught in the caller
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stream = open(encodeFilename(filename), open_mode)
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return (stream, alt_filename)
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def timeconvert(timestr):
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"""Convert RFC 2822 defined time string into system timestamp"""
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timestamp = None
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timetuple = email.utils.parsedate_tz(timestr)
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if timetuple is not None:
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timestamp = email.utils.mktime_tz(timetuple)
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return timestamp
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def sanitize_filename(s, restricted=False, is_id=False):
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"""Sanitizes a string so it could be used as part of a filename.
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If restricted is set, use a stricter subset of allowed characters.
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Set is_id if this is not an arbitrary string, but an ID that should be kept if possible
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"""
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def replace_insane(char):
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if char == '?' or ord(char) < 32 or ord(char) == 127:
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return ''
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elif char == '"':
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return '' if restricted else '\''
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elif char == ':':
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return '_-' if restricted else ' -'
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elif char in '\\/|*<>':
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return '_'
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if restricted and (char in '!&\'()[]{}$;`^,#' or char.isspace()):
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return '_'
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if restricted and ord(char) > 127:
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return '_'
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return char
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result = u''.join(map(replace_insane, s))
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if not is_id:
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while '__' in result:
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result = result.replace('__', '_')
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result = result.strip('_')
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# Common case of "Foreign band name - English song title"
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if restricted and result.startswith('-_'):
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result = result[2:]
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if not result:
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result = '_'
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return result
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def orderedSet(iterable):
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""" Remove all duplicates from the input iterable """
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res = []
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for el in iterable:
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if el not in res:
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res.append(el)
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return res
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def unescapeHTML(s):
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"""
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@param s a string
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"""
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assert type(s) == type(u'')
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result = re.sub(u'(?u)&(.+?);', htmlentity_transform, s)
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return result
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def encodeFilename(s):
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"""
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@param s The name of the file
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"""
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assert type(s) == type(u'')
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# Python 3 has a Unicode API
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if sys.version_info >= (3, 0):
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return s
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if sys.platform == 'win32' and sys.getwindowsversion()[0] >= 5:
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# Pass u'' directly to use Unicode APIs on Windows 2000 and up
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# (Detecting Windows NT 4 is tricky because 'major >= 4' would
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# match Windows 9x series as well. Besides, NT 4 is obsolete.)
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return s
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else:
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encoding = sys.getfilesystemencoding()
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if encoding is None:
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encoding = 'utf-8'
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return s.encode(encoding, 'ignore')
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def decodeOption(optval):
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if optval is None:
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return optval
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if isinstance(optval, bytes):
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optval = optval.decode(preferredencoding())
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assert isinstance(optval, compat_str)
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return optval
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def formatSeconds(secs):
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if secs > 3600:
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return '%d:%02d:%02d' % (secs // 3600, (secs % 3600) // 60, secs % 60)
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elif secs > 60:
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return '%d:%02d' % (secs // 60, secs % 60)
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else:
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return '%d' % secs
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def make_HTTPS_handler(opts):
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if sys.version_info < (3,2):
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# Python's 2.x handler is very simplistic
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return YoutubeDLHandlerHTTPS()
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else:
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import ssl
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context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
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context.set_default_verify_paths()
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context.verify_mode = (ssl.CERT_NONE
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if opts.no_check_certificate
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else ssl.CERT_REQUIRED)
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return YoutubeDLHandlerHTTPS(context=context)
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class ExtractorError(Exception):
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"""Error during info extraction."""
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def __init__(self, msg, tb=None, expected=False):
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""" tb, if given, is the original traceback (so that it can be printed out).
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If expected is set, this is a normal error message and most likely not a bug in youtube-dl.
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"""
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if sys.exc_info()[0] in (compat_urllib_error.URLError, socket.timeout, UnavailableVideoError):
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expected = True
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if not expected:
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msg = msg + u'; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.'
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super(ExtractorError, self).__init__(msg)
|
|
|
|
self.traceback = tb
|
|
self.exc_info = sys.exc_info() # preserve original exception
|
|
|
|
def format_traceback(self):
|
|
if self.traceback is None:
|
|
return None
|
|
return u''.join(traceback.format_tb(self.traceback))
|
|
|
|
|
|
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
|
|
|
|
|
|
class YoutubeDLHandler_Template: # Old-style class, like 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.
|
|
"""
|
|
|
|
@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():
|
|
if h in req.headers:
|
|
del req.headers[h]
|
|
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 'Youtubedl-user-agent' in req.headers:
|
|
if 'User-agent' in req.headers:
|
|
del req.headers['User-agent']
|
|
req.headers['User-agent'] = req.headers['Youtubedl-user-agent']
|
|
del req.headers['Youtubedl-user-agent']
|
|
return req
|
|
|
|
def _http_response(self, req, resp):
|
|
old_resp = resp
|
|
# gzip
|
|
if resp.headers.get('Content-encoding', '') == 'gzip':
|
|
gz = gzip.GzipFile(fileobj=io.BytesIO(resp.read()), mode='r')
|
|
resp = self.addinfourl_wrapper(gz, 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
|
|
|
|
|
|
class YoutubeDLHandler(YoutubeDLHandler_Template, compat_urllib_request.HTTPHandler):
|
|
http_request = YoutubeDLHandler_Template._http_request
|
|
http_response = YoutubeDLHandler_Template._http_response
|
|
|
|
|
|
class YoutubeDLHandlerHTTPS(YoutubeDLHandler_Template, compat_urllib_request.HTTPSHandler):
|
|
https_request = YoutubeDLHandler_Template._http_request
|
|
https_response = YoutubeDLHandler_Template._http_response
|
|
|
|
|
|
def unified_strdate(date_str):
|
|
"""Return a string with the date in the format YYYYMMDD"""
|
|
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' (\+|-)[\d]*$', '', date_str)
|
|
format_expressions = ['%d %B %Y', '%B %d %Y', '%b %d %Y', '%Y-%m-%d', '%d/%m/%Y', '%Y/%m/%d %H:%M:%S', '%d.%m.%Y %H:%M']
|
|
for expression in format_expressions:
|
|
try:
|
|
upload_date = datetime.datetime.strptime(date_str, expression).strftime('%Y%m%d')
|
|
except:
|
|
pass
|
|
return upload_date
|
|
|
|
def determine_ext(url, default_ext=u'unknown_video'):
|
|
guess = url.partition(u'?')[0].rpartition(u'.')[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] + u'.' + sub_lang + u'.' + 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 == 'now'or date_str == 'today':
|
|
return today
|
|
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()
|
|
|
|
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())
|