1633 lines
51 KiB
Python
1633 lines
51 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 tempfile
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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 unquote as compat_urllib_parse_unquote
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except ImportError:
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def compat_urllib_parse_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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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 _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 = compat_urllib_parse_unquote(
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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 = compat_urllib_parse_unquote(
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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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try:
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from shlex import quote as shlex_quote
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except ImportError: # Python < 3.3
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def shlex_quote(s):
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return "'" + s.replace("'", "'\"'\"'") + "'"
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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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def write_json_file(obj, fn):
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""" Encode obj as JSON and write it to fn, atomically """
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args = {
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'suffix': '.tmp',
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'prefix': os.path.basename(fn) + '.',
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'dir': os.path.dirname(fn),
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'delete': False,
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}
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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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args['mode'] = 'wb'
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else:
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args.update({
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'mode': 'w',
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'encoding': 'utf-8',
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})
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tf = tempfile.NamedTemporaryFile(**args)
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try:
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with tf:
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json.dump(obj, tf)
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os.rename(tf.name, fn)
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except:
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try:
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os.remove(tf.name)
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except OSError:
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pass
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raise
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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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# Here comes the crazy part: In 2.6, if the xpath is a unicode,
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# .//node does not match if a node is a direct child of . !
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if isinstance(xpath, unicode):
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xpath = xpath.encode('ascii')
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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 xpath_text(node, xpath, name=None, fatal=False):
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if sys.version_info < (2, 7): # Crazy 2.6
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xpath = xpath.encode('ascii')
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n = node.find(xpath)
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if n is None:
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if fatal:
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name = xpath if name is None else name
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raise ExtractorError('Could not find XML element %s' % name)
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else:
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return None
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return n.text
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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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|
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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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|
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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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|
|
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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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|
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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()
|
|
|
|
class MetaParser(BaseHTMLParser):
|
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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
|
|
|
|
def handle_starttag(self, tag, attrs):
|
|
if tag != 'meta':
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|
return
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attrs = dict(attrs)
|
|
if attrs.get('name') == self.name:
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self.result = attrs.get('content')
|
|
|
|
def get_result(self):
|
|
return self.result
|
|
|
|
def get_meta_content(name, html):
|
|
"""
|
|
Return the content attribute from the meta tag with the given name attribute.
|
|
"""
|
|
parser = MetaParser(name)
|
|
try:
|
|
parser.loads(html)
|
|
except compat_html_parser.HTMLParseError:
|
|
pass
|
|
return parser.get_result()
|
|
|
|
|
|
def clean_html(html):
|
|
"""Clean an HTML snippet into a readable string"""
|
|
# 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 == u'-':
|
|
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(u'[/<>:"\\|\\\\?\\*]', u'#', 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
|
|
|
|
result = u''.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 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(u'x'):
|
|
base = 16
|
|
numstr = u'0%s' % numstr
|
|
else:
|
|
base = 10
|
|
return compat_chr(int(numstr, base))
|
|
|
|
# Unknown entity in name, return its literal representation
|
|
return (u'&%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 u'' 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(opts_no_check_certificate, **kwargs):
|
|
if sys.version_info < (3, 2):
|
|
import httplib
|
|
|
|
class HTTPSConnectionV3(httplib.HTTPSConnection):
|
|
def __init__(self, *args, **kwargs):
|
|
httplib.HTTPSConnection.__init__(self, *args, **kwargs)
|
|
|
|
def connect(self):
|
|
sock = socket.create_connection((self.host, self.port), self.timeout)
|
|
if getattr(self, '_tunnel_host', False):
|
|
self.sock = sock
|
|
self._tunnel()
|
|
try:
|
|
self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file, ssl_version=ssl.PROTOCOL_TLSv1)
|
|
except ssl.SSLError:
|
|
self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file, ssl_version=ssl.PROTOCOL_SSLv23)
|
|
|
|
class HTTPSHandlerV3(compat_urllib_request.HTTPSHandler):
|
|
def https_open(self, req):
|
|
return self.do_open(HTTPSConnectionV3, req)
|
|
return HTTPSHandlerV3(**kwargs)
|
|
elif hasattr(ssl, 'create_default_context'): # Python >= 3.4
|
|
context = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
|
|
context.options &= ~ssl.OP_NO_SSLv3 # Allow older, not-as-secure SSLv3
|
|
if opts_no_check_certificate:
|
|
context.verify_mode = ssl.CERT_NONE
|
|
return compat_urllib_request.HTTPSHandler(context=context, **kwargs)
|
|
else: # Python < 3.4
|
|
context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
|
|
context.verify_mode = (ssl.CERT_NONE
|
|
if opts_no_check_certificate
|
|
else ssl.CERT_REQUIRED)
|
|
context.set_default_verify_paths()
|
|
try:
|
|
context.load_default_certs()
|
|
except AttributeError:
|
|
pass # Python < 3.4
|
|
return compat_urllib_request.HTTPSHandler(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 not expected:
|
|
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.'
|
|
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 u''.join(traceback.format_tb(self.traceback))
|
|
|
|
|
|
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
|
|
|
|
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.
|
|
"""
|
|
|
|
@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 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 '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':
|
|
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
|
|
|
|
|
|
def parse_iso8601(date_str, delimiter='T'):
|
|
""" Return a UNIX timestamp from the given date """
|
|
|
|
if date_str is None:
|
|
return None
|
|
|
|
m = re.search(
|
|
r'Z$| ?(?P<sign>\+|-)(?P<hours>[0-9]{2}):?(?P<minutes>[0-9]{2})$',
|
|
date_str)
|
|
if not m:
|
|
timezone = datetime.timedelta()
|
|
else:
|
|
date_str = date_str[:-len(m.group(0))]
|
|
if not m.group('sign'):
|
|
timezone = datetime.timedelta()
|
|
else:
|
|
sign = 1 if m.group('sign') == '+' else -1
|
|
timezone = datetime.timedelta(
|
|
hours=sign * int(m.group('hours')),
|
|
minutes=sign * int(m.group('minutes')))
|
|
date_format = '%Y-%m-%d{0}%H:%M:%S'.format(delimiter)
|
|
dt = datetime.datetime.strptime(date_str, date_format) - timezone
|
|
return calendar.timegm(dt.timetuple())
|
|
|
|
|
|
def unified_strdate(date_str):
|
|
"""Return a string with the date in the format YYYYMMDD"""
|
|
|
|
if date_str is None:
|
|
return None
|
|
|
|
upload_date = None
|
|
#Replace commas
|
|
date_str = date_str.replace(',', ' ')
|
|
# %z (UTC offset) is only supported in python>=3.2
|
|
date_str = re.sub(r' ?(\+|-)[0-9]{2}:?[0-9]{2}$', '', date_str)
|
|
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',
|
|
'%d.%m.%Y',
|
|
'%d/%m/%Y',
|
|
'%d/%m/%y',
|
|
'%Y/%m/%d %H:%M:%S',
|
|
'%Y-%m-%d %H:%M:%S',
|
|
'%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',
|
|
]
|
|
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=u'unknown_video'):
|
|
if url is None:
|
|
return default_ext
|
|
guess = url.partition(u'?')[0].rpartition(u'.')[2]
|
|
if re.match(r'^[A-Za-z0-9]+$', guess):
|
|
return guess
|
|
else:
|
|
return default_ext
|
|
|
|
def subtitles_filename(filename, sub_lang, sub_format):
|
|
return filename.rsplit('.', 1)[0] + u'.' + sub_lang + u'.' + sub_format
|
|
|
|
def date_from_str(date_str):
|
|
"""
|
|
Return a datetime object from a string in the format YYYYMMDD or
|
|
(now|today)[+-][0-9](day|week|month|year)(s)?"""
|
|
today = datetime.date.today()
|
|
if date_str == 'now'or date_str == 'today':
|
|
return today
|
|
match = re.match('(now|today)(?P<sign>[+-])(?P<time>\d+)(?P<unit>day|week|month|year)(s)?', date_str)
|
|
if match is not None:
|
|
sign = match.group('sign')
|
|
time = int(match.group('time'))
|
|
if sign == '-':
|
|
time = -time
|
|
unit = match.group('unit')
|
|
#A bad aproximation?
|
|
if unit == 'month':
|
|
unit = 'day'
|
|
time *= 30
|
|
elif unit == 'year':
|
|
unit = 'day'
|
|
time *= 365
|
|
unit += 's'
|
|
delta = datetime.timedelta(**{unit: time})
|
|
return today + delta
|
|
return datetime.datetime.strptime(date_str, "%Y%m%d").date()
|
|
|
|
def hyphenate_date(date_str):
|
|
"""
|
|
Convert a date in 'YYYYMMDD' format to 'YYYY-MM-DD' format"""
|
|
match = re.match(r'^(\d\d\d\d)(\d\d)(\d\d)$', 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
|
|
if fileno not in WIN_OUTPUT_IDS:
|
|
return False
|
|
|
|
GetStdHandle = ctypes.WINFUNCTYPE(
|
|
ctypes.wintypes.HANDLE, ctypes.wintypes.DWORD)(
|
|
("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)(("WriteConsoleW", ctypes.windll.kernel32))
|
|
written = ctypes.wintypes.DWORD(0)
|
|
|
|
GetFileType = ctypes.WINFUNCTYPE(ctypes.wintypes.DWORD, ctypes.wintypes.DWORD)(("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))(
|
|
("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''
|
|
if isinstance(chr(0), bytes): # Python 2
|
|
return ''.join([chr(x) for x in xs])
|
|
else:
|
|
return bytes(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 shell_quote(args):
|
|
quoted_args = []
|
|
encoding = sys.getfilesystemencoding()
|
|
if encoding is None:
|
|
encoding = 'utf-8'
|
|
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 u' '.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(
|
|
{u'__youtubedl_smuggle': json.dumps(data)})
|
|
return url + u'#' + sdata
|
|
|
|
|
|
def unsmuggle_url(smug_url, default=None):
|
|
if not '#__youtubedl_smuggle' in smug_url:
|
|
return smug_url, default
|
|
url, _, sdata = smug_url.rpartition(u'#')
|
|
jsond = compat_parse_qs(sdata)[u'__youtubedl_smuggle'][0]
|
|
data = json.loads(jsond)
|
|
return url, data
|
|
|
|
|
|
def format_bytes(bytes):
|
|
if bytes is None:
|
|
return u'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 = [u'B', u'KiB', u'MiB', u'GiB', u'TiB', u'PiB', u'EiB', u'ZiB', u'YiB'][exponent]
|
|
converted = float(bytes) / float(1024 ** exponent)
|
|
return u'%.2f%s' % (converted, suffix)
|
|
|
|
|
|
def get_term_width():
|
|
columns = os.environ.get('COLUMNS', None)
|
|
if columns:
|
|
return int(columns)
|
|
|
|
try:
|
|
sp = subprocess.Popen(
|
|
['stty', 'size'],
|
|
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
out, err = sp.communicate()
|
|
return int(out.split()[1])
|
|
except:
|
|
pass
|
|
return None
|
|
|
|
|
|
def month_by_name(name):
|
|
""" Return the number of a month by (locale-independently) English name """
|
|
|
|
ENGLISH_NAMES = [
|
|
u'January', u'February', u'March', u'April', u'May', u'June',
|
|
u'July', u'August', u'September', u'October', u'November', u'December']
|
|
try:
|
|
return ENGLISH_NAMES.index(name) + 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};)',
|
|
u'&',
|
|
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(u'/').split(u'/')[-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'[,\.\+]', u'', 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 s is None:
|
|
return None
|
|
|
|
s = s.strip()
|
|
|
|
m = re.match(
|
|
r'(?i)(?:(?:(?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 = int(m.group('secs'))
|
|
if m.group('mins'):
|
|
res += int(m.group('mins')) * 60
|
|
if m.group('hours'):
|
|
res += int(m.group('hours')) * 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 u'{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
|
|
|
|
|
|
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, unicode):
|
|
s = s.encode('utf-8')
|
|
return compat_urllib_parse.quote(s, "%/;:@&=+$,!~*'()?#[]")
|
|
|
|
|
|
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(u'!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 = u'\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
|
|
|
|
|
|
if sys.version_info < (3, 0) and sys.platform == 'win32':
|
|
def compat_getpass(prompt, *args, **kwargs):
|
|
if isinstance(prompt, compat_str):
|
|
prompt = prompt.encode(preferredencoding())
|
|
return getpass.getpass(prompt, *args, **kwargs)
|
|
else:
|
|
compat_getpass = getpass.getpass
|
|
|
|
|
|
US_RATINGS = {
|
|
'G': 0,
|
|
'PG': 10,
|
|
'PG-13': 13,
|
|
'R': 16,
|
|
'NC': 18,
|
|
}
|
|
|
|
|
|
def strip_jsonp(code):
|
|
return re.sub(r'(?s)^[a-zA-Z0-9_]+\s*\(\s*(.*)\);?\s*?\s*$', r'\1', code)
|
|
|
|
|
|
def js_to_json(code):
|
|
def fix_kv(m):
|
|
key = m.group(2)
|
|
if key.startswith("'"):
|
|
assert key.endswith("'")
|
|
assert '"' not in key
|
|
key = '"%s"' % key[1:-1]
|
|
elif not key.startswith('"'):
|
|
key = '"%s"' % key
|
|
|
|
value = m.group(4)
|
|
if value.startswith("'"):
|
|
assert value.endswith("'")
|
|
assert '"' not in value
|
|
value = '"%s"' % value[1:-1]
|
|
|
|
return m.group(1) + key + m.group(3) + value
|
|
|
|
res = re.sub(r'''(?x)
|
|
([{,]\s*)
|
|
("[^"]*"|\'[^\']*\'|[a-z0-9A-Z]+)
|
|
(:\s*)
|
|
([0-9.]+|true|false|"[^"]*"|\'[^\']*\'|\[|\{)
|
|
''', fix_kv, code)
|
|
res = re.sub(r',(\s*\])', 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'
|
|
|
|
try:
|
|
subprocess_check_output = subprocess.check_output
|
|
except AttributeError:
|
|
def subprocess_check_output(*args, **kwargs):
|
|
assert 'input' not in kwargs
|
|
p = subprocess.Popen(*args, stdout=subprocess.PIPE, **kwargs)
|
|
output, _ = p.communicate()
|
|
ret = p.poll()
|
|
if ret:
|
|
raise subprocess.CalledProcessError(ret, p.args, output=output)
|
|
return output
|
|
|
|
|
|
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
|