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1552 lines
46 KiB
1552 lines
46 KiB
#!/usr/bin/env python |
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# -*- coding: utf-8 -*- |
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|
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from __future__ import unicode_literals |
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|
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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 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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|
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from .compat import ( |
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compat_chr, |
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compat_getenv, |
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compat_html_entities, |
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compat_parse_qs, |
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compat_str, |
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compat_urllib_error, |
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compat_urllib_parse, |
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compat_urllib_parse_urlparse, |
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compat_urllib_request, |
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compat_urlparse, |
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shlex_quote, |
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) |
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|
|
|
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# This is not clearly defined otherwise |
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compiled_regex_type = type(re.compile('')) |
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|
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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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|
|
|
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def preferredencoding(): |
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"""Get preferred encoding. |
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|
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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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'TEST'.encode(pref) |
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except: |
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pref = 'UTF-8' |
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|
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return pref |
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|
|
|
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def write_json_file(obj, fn): |
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""" Encode obj as JSON and write it to fn, atomically if possible """ |
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|
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fn = encodeFilename(fn) |
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if sys.version_info < (3, 0) and sys.platform != 'win32': |
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encoding = get_filesystem_encoding() |
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# os.path.basename returns a bytes object, but NamedTemporaryFile |
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# will fail if the filename contains non ascii characters unless we |
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# use a unicode object |
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path_basename = lambda f: os.path.basename(fn).decode(encoding) |
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# the same for os.path.dirname |
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path_dirname = lambda f: os.path.dirname(fn).decode(encoding) |
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else: |
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path_basename = os.path.basename |
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path_dirname = os.path.dirname |
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|
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args = { |
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'suffix': '.tmp', |
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'prefix': path_basename(fn) + '.', |
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'dir': path_dirname(fn), |
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'delete': False, |
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} |
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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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|
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tf = tempfile.NamedTemporaryFile(**args) |
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|
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try: |
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with tf: |
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json.dump(obj, tf) |
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if sys.platform == 'win32': |
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# Need to remove existing file on Windows, else os.rename raises |
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# WindowsError or FileExistsError. |
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try: |
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os.unlink(fn) |
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except OSError: |
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pass |
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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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|
|
|
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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 + "[@%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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|
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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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|
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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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|
|
|
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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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|
|
|
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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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|
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n = node.find(xpath) |
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if n is None or n.text 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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|
|
|
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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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|
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m = re.search(r'''(?xs) |
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<([a-zA-Z0-9:._-]+) |
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(?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]+|="[^"]+"|='[^']+'))*? |
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\s+%s=['"]?%s['"]? |
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(?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]+|="[^"]+"|='[^']+'))*? |
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\s*> |
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(?P<content>.*?) |
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</\1> |
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''' % (re.escape(attribute), re.escape(value)), html) |
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|
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if not m: |
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return None |
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res = m.group('content') |
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|
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if res.startswith('"') or res.startswith("'"): |
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res = res[1:-1] |
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|
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return unescapeHTML(res) |
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|
|
|
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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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|
|
|
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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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|
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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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|
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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 == '-': |
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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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|
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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('[/<>:"\\|\\\\?\\*]', '#', 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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|
|
|
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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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|
|
|
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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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|
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result = ''.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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|
|
|
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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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|
|
|
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def _htmlentity_transform(entity): |
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"""Transforms an HTML entity to a character.""" |
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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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|
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mobj = re.match(r'#(x?[0-9]+)', 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('x'): |
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base = 16 |
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numstr = '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 ('&%s;' % entity) |
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|
|
|
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def unescapeHTML(s): |
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if s is None: |
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return None |
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assert type(s) == compat_str |
|
|
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return re.sub( |
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r'&([^;]+);', lambda m: _htmlentity_transform(m.group(1)), s) |
|
|
|
|
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def encodeFilename(s, for_subprocess=False): |
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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) == compat_str |
|
|
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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 '' 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.) |
|
if not for_subprocess: |
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return s |
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else: |
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# For subprocess calls, encode with locale encoding |
|
# Refer to http://stackoverflow.com/a/9951851/35070 |
|
encoding = preferredencoding() |
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else: |
|
encoding = sys.getfilesystemencoding() |
|
if encoding is None: |
|
encoding = 'utf-8' |
|
return s.encode(encoding, 'ignore') |
|
|
|
|
|
def encodeArgument(s): |
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if not isinstance(s, compat_str): |
|
# Legacy code that uses byte strings |
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# 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)) |
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s = s.decode('ascii') |
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return encodeFilename(s, True) |
|
|
|
|
|
def decodeOption(optval): |
|
if optval is None: |
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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) |
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else: |
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return '%d' % secs |
|
|
|
|
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def make_HTTPS_handler(opts_no_check_certificate, **kwargs): |
|
if hasattr(ssl, 'create_default_context'): # Python >= 3.4 or 2.7.9 |
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context = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH) |
|
if opts_no_check_certificate: |
|
context.verify_mode = ssl.CERT_NONE |
|
try: |
|
return compat_urllib_request.HTTPSHandler(context=context, **kwargs) |
|
except TypeError: |
|
# Python 2.7.8 |
|
# (create_default_context present but HTTPSHandler has no context=) |
|
pass |
|
|
|
if sys.version_info < (3, 2): |
|
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: |
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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): |
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return self.do_open(HTTPSConnectionV3, req) |
|
return HTTPSHandlerV3(**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() |
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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 cause: |
|
msg += ' (caused by %r)' % cause |
|
if not expected: |
|
if ytdl_is_updateable(): |
|
update_cmd = 'type youtube-dl -U to update' |
|
else: |
|
update_cmd = 'see https://yt-dl.org/update on how to update' |
|
msg += '; please report this issue on https://yt-dl.org/bug .' |
|
msg += ' Make sure you are using the latest version; %s.' % update_cmd |
|
msg += ' Be sure to call youtube-dl with the --verbose flag and include its complete output.' |
|
super(ExtractorError, self).__init__(msg) |
|
|
|
self.traceback = tb |
|
self.exc_info = sys.exc_info() # preserve original exception |
|
self.cause = cause |
|
self.video_id = video_id |
|
|
|
def format_traceback(self): |
|
if self.traceback is None: |
|
return None |
|
return ''.join(traceback.format_tb(self.traceback)) |
|
|
|
|
|
class UnsupportedError(ExtractorError): |
|
def __init__(self, url): |
|
super(UnsupportedError, self).__init__( |
|
'Unsupported URL: %s' % url, expected=True) |
|
self.url = url |
|
|
|
|
|
class RegexNotFoundError(ExtractorError): |
|
"""Error when a regex didn't match""" |
|
pass |
|
|
|
|
|
class DownloadError(Exception): |
|
"""Download Error exception. |
|
|
|
This exception may be thrown by FileDownloader objects if they are not |
|
configured to continue on errors. They will contain the appropriate |
|
error message. |
|
""" |
|
|
|
def __init__(self, msg, exc_info=None): |
|
""" exc_info, if given, is the original exception that caused the trouble (as returned by sys.exc_info()). """ |
|
super(DownloadError, self).__init__(msg) |
|
self.exc_info = exc_info |
|
|
|
|
|
class SameFileError(Exception): |
|
"""Same File exception. |
|
|
|
This exception will be thrown by FileDownloader objects if they detect |
|
multiple files would have to be downloaded to the same file on disk. |
|
""" |
|
pass |
|
|
|
|
|
class PostProcessingError(Exception): |
|
"""Post Processing exception. |
|
|
|
This exception may be raised by PostProcessor's .run() method to |
|
indicate an error in the postprocessing task. |
|
""" |
|
|
|
def __init__(self, msg): |
|
self.msg = msg |
|
|
|
|
|
class MaxDownloadsReached(Exception): |
|
""" --max-downloads limit has been reached. """ |
|
pass |
|
|
|
|
|
class UnavailableVideoError(Exception): |
|
"""Unavailable Format exception. |
|
|
|
This exception will be thrown when a video is requested |
|
in a format that is not available for that video. |
|
""" |
|
pass |
|
|
|
|
|
class ContentTooShortError(Exception): |
|
"""Content Too Short exception. |
|
|
|
This exception may be raised by FileDownloader objects when a file they |
|
download is too small for what the server announced first, indicating |
|
the connection was probably interrupted. |
|
""" |
|
# Both in bytes |
|
downloaded = None |
|
expected = None |
|
|
|
def __init__(self, downloaded, expected): |
|
self.downloaded = downloaded |
|
self.expected = expected |
|
|
|
|
|
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'] |
|
|
|
if sys.version_info < (2, 7) and '#' in req.get_full_url(): |
|
# Python 2.6 is brain-dead when it comes to fragments |
|
req._Request__original = req._Request__original.partition('#')[0] |
|
req._Request__r_type = req._Request__r_type.partition('#')[0] |
|
|
|
return req |
|
|
|
def http_response(self, req, resp): |
|
old_resp = resp |
|
# gzip |
|
if resp.headers.get('Content-encoding', '') == 'gzip': |
|
content = resp.read() |
|
gz = gzip.GzipFile(fileobj=io.BytesIO(content), mode='rb') |
|
try: |
|
uncompressed = io.BytesIO(gz.read()) |
|
except IOError as original_ioerror: |
|
# There may be junk add the end of the file |
|
# See http://stackoverflow.com/q/4928560/35070 for details |
|
for i in range(1, 1024): |
|
try: |
|
gz = gzip.GzipFile(fileobj=io.BytesIO(content[:-i]), mode='rb') |
|
uncompressed = io.BytesIO(gz.read()) |
|
except IOError: |
|
continue |
|
break |
|
else: |
|
raise original_ioerror |
|
resp = self.addinfourl_wrapper(uncompressed, old_resp.headers, old_resp.url, old_resp.code) |
|
resp.msg = old_resp.msg |
|
# deflate |
|
if resp.headers.get('Content-encoding', '') == 'deflate': |
|
gz = io.BytesIO(self.deflate(resp.read())) |
|
resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code) |
|
resp.msg = old_resp.msg |
|
return resp |
|
|
|
https_request = http_request |
|
https_response = http_response |
|
|
|
|
|
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'(\.[0-9]+)?(?:Z$| ?(?P<sign>\+|-)(?P<hours>[0-9]{2}):?(?P<minutes>[0-9]{2})$)', |
|
date_str) |
|
if not m: |
|
timezone = datetime.timedelta() |
|
else: |
|
date_str = date_str[:-len(m.group(0))] |
|
if not m.group('sign'): |
|
timezone = datetime.timedelta() |
|
else: |
|
sign = 1 if m.group('sign') == '+' else -1 |
|
timezone = datetime.timedelta( |
|
hours=sign * int(m.group('hours')), |
|
minutes=sign * int(m.group('minutes'))) |
|
date_format = '%Y-%m-%d{0}%H:%M:%S'.format(delimiter) |
|
dt = datetime.datetime.strptime(date_str, date_format) - timezone |
|
return calendar.timegm(dt.timetuple()) |
|
|
|
|
|
def unified_strdate(date_str, day_first=True): |
|
"""Return a string with the date in the format YYYYMMDD""" |
|
|
|
if date_str is None: |
|
return None |
|
upload_date = None |
|
# Replace commas |
|
date_str = date_str.replace(',', ' ') |
|
# %z (UTC offset) is only supported in python>=3.2 |
|
date_str = re.sub(r' ?(\+|-)[0-9]{2}:?[0-9]{2}$', '', date_str) |
|
# Remove AM/PM + timezone |
|
date_str = re.sub(r'(?i)\s*(?:AM|PM)\s+[A-Z]+', '', date_str) |
|
|
|
format_expressions = [ |
|
'%d %B %Y', |
|
'%d %b %Y', |
|
'%B %d %Y', |
|
'%b %d %Y', |
|
'%b %dst %Y %I:%M%p', |
|
'%b %dnd %Y %I:%M%p', |
|
'%b %dth %Y %I:%M%p', |
|
'%Y-%m-%d', |
|
'%Y/%m/%d', |
|
'%d.%m.%Y', |
|
'%d/%m/%Y', |
|
'%d/%m/%y', |
|
'%Y/%m/%d %H:%M:%S', |
|
'%Y-%m-%d %H:%M:%S', |
|
'%Y-%m-%d %H:%M:%S.%f', |
|
'%d.%m.%Y %H:%M', |
|
'%d.%m.%Y %H.%M', |
|
'%Y-%m-%dT%H:%M:%SZ', |
|
'%Y-%m-%dT%H:%M:%S.%fZ', |
|
'%Y-%m-%dT%H:%M:%S.%f0Z', |
|
'%Y-%m-%dT%H:%M:%S', |
|
'%Y-%m-%dT%H:%M:%S.%f', |
|
'%Y-%m-%dT%H:%M', |
|
] |
|
if day_first: |
|
format_expressions.extend([ |
|
'%d/%m/%Y %H:%M:%S', |
|
]) |
|
else: |
|
format_expressions.extend([ |
|
'%m/%d/%Y %H:%M:%S', |
|
]) |
|
for expression in format_expressions: |
|
try: |
|
upload_date = datetime.datetime.strptime(date_str, expression).strftime('%Y%m%d') |
|
except ValueError: |
|
pass |
|
if upload_date is None: |
|
timetuple = email.utils.parsedate_tz(date_str) |
|
if timetuple: |
|
upload_date = datetime.datetime(*timetuple[:6]).strftime('%Y%m%d') |
|
return upload_date |
|
|
|
|
|
def determine_ext(url, default_ext='unknown_video'): |
|
if url is None: |
|
return default_ext |
|
guess = url.partition('?')[0].rpartition('.')[2] |
|
if re.match(r'^[A-Za-z0-9]+$', guess): |
|
return guess |
|
else: |
|
return default_ext |
|
|
|
|
|
def subtitles_filename(filename, sub_lang, sub_format): |
|
return filename.rsplit('.', 1)[0] + '.' + sub_lang + '.' + sub_format |
|
|
|
|
|
def date_from_str(date_str): |
|
""" |
|
Return a datetime object from a string in the format YYYYMMDD or |
|
(now|today)[+-][0-9](day|week|month|year)(s)?""" |
|
today = datetime.date.today() |
|
if date_str in ('now', 'today'): |
|
return today |
|
if date_str == 'yesterday': |
|
return today - datetime.timedelta(days=1) |
|
match = re.match('(now|today)(?P<sign>[+-])(?P<time>\d+)(?P<unit>day|week|month|year)(s)?', date_str) |
|
if match is not None: |
|
sign = match.group('sign') |
|
time = int(match.group('time')) |
|
if sign == '-': |
|
time = -time |
|
unit = match.group('unit') |
|
# A bad aproximation? |
|
if unit == 'month': |
|
unit = 'day' |
|
time *= 30 |
|
elif unit == 'year': |
|
unit = 'day' |
|
time *= 365 |
|
unit += 's' |
|
delta = datetime.timedelta(**{unit: time}) |
|
return today + delta |
|
return datetime.datetime.strptime(date_str, "%Y%m%d").date() |
|
|
|
|
|
def hyphenate_date(date_str): |
|
""" |
|
Convert a date in 'YYYYMMDD' format to 'YYYY-MM-DD' format""" |
|
match = re.match(r'^(\d\d\d\d)(\d\d)(\d\d)$', date_str) |
|
if match is not None: |
|
return '-'.join(match.groups()) |
|
else: |
|
return date_str |
|
|
|
|
|
class DateRange(object): |
|
"""Represents a time interval between two dates""" |
|
|
|
def __init__(self, start=None, end=None): |
|
"""start and end must be strings in the format accepted by date""" |
|
if start is not None: |
|
self.start = date_from_str(start) |
|
else: |
|
self.start = datetime.datetime.min.date() |
|
if end is not None: |
|
self.end = date_from_str(end) |
|
else: |
|
self.end = datetime.datetime.max.date() |
|
if self.start > self.end: |
|
raise ValueError('Date range: "%s" , the start date must be before the end date' % self) |
|
|
|
@classmethod |
|
def day(cls, day): |
|
"""Returns a range that only contains the given day""" |
|
return cls(day, day) |
|
|
|
def __contains__(self, date): |
|
"""Check if the date is in the range""" |
|
if not isinstance(date, datetime.date): |
|
date = date_from_str(date) |
|
return self.start <= date <= self.end |
|
|
|
def __str__(self): |
|
return '%s - %s' % (self.start.isoformat(), self.end.isoformat()) |
|
|
|
|
|
def platform_name(): |
|
""" Returns the platform name as a compat_str """ |
|
res = platform.platform() |
|
if isinstance(res, bytes): |
|
res = res.decode(preferredencoding()) |
|
|
|
assert isinstance(res, compat_str) |
|
return res |
|
|
|
|
|
def _windows_write_string(s, out): |
|
""" Returns True if the string was written using special methods, |
|
False if it has yet to be written out.""" |
|
# Adapted from http://stackoverflow.com/a/3259271/35070 |
|
|
|
import ctypes |
|
import ctypes.wintypes |
|
|
|
WIN_OUTPUT_IDS = { |
|
1: -11, |
|
2: -12, |
|
} |
|
|
|
try: |
|
fileno = out.fileno() |
|
except AttributeError: |
|
# If the output stream doesn't have a fileno, it's virtual |
|
return False |
|
if fileno not in WIN_OUTPUT_IDS: |
|
return False |
|
|
|
GetStdHandle = ctypes.WINFUNCTYPE( |
|
ctypes.wintypes.HANDLE, ctypes.wintypes.DWORD)( |
|
(b"GetStdHandle", ctypes.windll.kernel32)) |
|
h = GetStdHandle(WIN_OUTPUT_IDS[fileno]) |
|
|
|
WriteConsoleW = ctypes.WINFUNCTYPE( |
|
ctypes.wintypes.BOOL, ctypes.wintypes.HANDLE, ctypes.wintypes.LPWSTR, |
|
ctypes.wintypes.DWORD, ctypes.POINTER(ctypes.wintypes.DWORD), |
|
ctypes.wintypes.LPVOID)((b"WriteConsoleW", ctypes.windll.kernel32)) |
|
written = ctypes.wintypes.DWORD(0) |
|
|
|
GetFileType = ctypes.WINFUNCTYPE(ctypes.wintypes.DWORD, ctypes.wintypes.DWORD)((b"GetFileType", ctypes.windll.kernel32)) |
|
FILE_TYPE_CHAR = 0x0002 |
|
FILE_TYPE_REMOTE = 0x8000 |
|
GetConsoleMode = ctypes.WINFUNCTYPE( |
|
ctypes.wintypes.BOOL, ctypes.wintypes.HANDLE, |
|
ctypes.POINTER(ctypes.wintypes.DWORD))( |
|
(b"GetConsoleMode", ctypes.windll.kernel32)) |
|
INVALID_HANDLE_VALUE = ctypes.wintypes.DWORD(-1).value |
|
|
|
def not_a_console(handle): |
|
if handle == INVALID_HANDLE_VALUE or handle is None: |
|
return True |
|
return ((GetFileType(handle) & ~FILE_TYPE_REMOTE) != FILE_TYPE_CHAR |
|
or GetConsoleMode(handle, ctypes.byref(ctypes.wintypes.DWORD())) == 0) |
|
|
|
if not_a_console(h): |
|
return False |
|
|
|
def next_nonbmp_pos(s): |
|
try: |
|
return next(i for i, c in enumerate(s) if ord(c) > 0xffff) |
|
except StopIteration: |
|
return len(s) |
|
|
|
while s: |
|
count = min(next_nonbmp_pos(s), 1024) |
|
|
|
ret = WriteConsoleW( |
|
h, s, count if count else 2, ctypes.byref(written), None) |
|
if ret == 0: |
|
raise OSError('Failed to write string') |
|
if not count: # We just wrote a non-BMP character |
|
assert written.value == 2 |
|
s = s[1:] |
|
else: |
|
assert written.value > 0 |
|
s = s[written.value:] |
|
return True |
|
|
|
|
|
def write_string(s, out=None, encoding=None): |
|
if out is None: |
|
out = sys.stderr |
|
assert type(s) == compat_str |
|
|
|
if sys.platform == 'win32' and encoding is None and hasattr(out, 'fileno'): |
|
if _windows_write_string(s, out): |
|
return |
|
|
|
if ('b' in getattr(out, 'mode', '') or |
|
sys.version_info[0] < 3): # Python 2 lies about mode of sys.stderr |
|
byt = s.encode(encoding or preferredencoding(), 'ignore') |
|
out.write(byt) |
|
elif hasattr(out, 'buffer'): |
|
enc = encoding or getattr(out, 'encoding', None) or preferredencoding() |
|
byt = s.encode(enc, 'ignore') |
|
out.buffer.write(byt) |
|
else: |
|
out.write(s) |
|
out.flush() |
|
|
|
|
|
def bytes_to_intlist(bs): |
|
if not bs: |
|
return [] |
|
if isinstance(bs[0], int): # Python 3 |
|
return list(bs) |
|
else: |
|
return [ord(c) for c in bs] |
|
|
|
|
|
def intlist_to_bytes(xs): |
|
if not xs: |
|
return b'' |
|
return struct_pack('%dB' % len(xs), *xs) |
|
|
|
|
|
# Cross-platform file locking |
|
if sys.platform == 'win32': |
|
import ctypes.wintypes |
|
import msvcrt |
|
|
|
class OVERLAPPED(ctypes.Structure): |
|
_fields_ = [ |
|
('Internal', ctypes.wintypes.LPVOID), |
|
('InternalHigh', ctypes.wintypes.LPVOID), |
|
('Offset', ctypes.wintypes.DWORD), |
|
('OffsetHigh', ctypes.wintypes.DWORD), |
|
('hEvent', ctypes.wintypes.HANDLE), |
|
] |
|
|
|
kernel32 = ctypes.windll.kernel32 |
|
LockFileEx = kernel32.LockFileEx |
|
LockFileEx.argtypes = [ |
|
ctypes.wintypes.HANDLE, # hFile |
|
ctypes.wintypes.DWORD, # dwFlags |
|
ctypes.wintypes.DWORD, # dwReserved |
|
ctypes.wintypes.DWORD, # nNumberOfBytesToLockLow |
|
ctypes.wintypes.DWORD, # nNumberOfBytesToLockHigh |
|
ctypes.POINTER(OVERLAPPED) # Overlapped |
|
] |
|
LockFileEx.restype = ctypes.wintypes.BOOL |
|
UnlockFileEx = kernel32.UnlockFileEx |
|
UnlockFileEx.argtypes = [ |
|
ctypes.wintypes.HANDLE, # hFile |
|
ctypes.wintypes.DWORD, # dwReserved |
|
ctypes.wintypes.DWORD, # nNumberOfBytesToLockLow |
|
ctypes.wintypes.DWORD, # nNumberOfBytesToLockHigh |
|
ctypes.POINTER(OVERLAPPED) # Overlapped |
|
] |
|
UnlockFileEx.restype = ctypes.wintypes.BOOL |
|
whole_low = 0xffffffff |
|
whole_high = 0x7fffffff |
|
|
|
def _lock_file(f, exclusive): |
|
overlapped = OVERLAPPED() |
|
overlapped.Offset = 0 |
|
overlapped.OffsetHigh = 0 |
|
overlapped.hEvent = 0 |
|
f._lock_file_overlapped_p = ctypes.pointer(overlapped) |
|
handle = msvcrt.get_osfhandle(f.fileno()) |
|
if not LockFileEx(handle, 0x2 if exclusive else 0x0, 0, |
|
whole_low, whole_high, f._lock_file_overlapped_p): |
|
raise OSError('Locking file failed: %r' % ctypes.FormatError()) |
|
|
|
def _unlock_file(f): |
|
assert f._lock_file_overlapped_p |
|
handle = msvcrt.get_osfhandle(f.fileno()) |
|
if not UnlockFileEx(handle, 0, |
|
whole_low, whole_high, f._lock_file_overlapped_p): |
|
raise OSError('Unlocking file failed: %r' % ctypes.FormatError()) |
|
|
|
else: |
|
import fcntl |
|
|
|
def _lock_file(f, exclusive): |
|
fcntl.flock(f, fcntl.LOCK_EX if exclusive else fcntl.LOCK_SH) |
|
|
|
def _unlock_file(f): |
|
fcntl.flock(f, fcntl.LOCK_UN) |
|
|
|
|
|
class locked_file(object): |
|
def __init__(self, filename, mode, encoding=None): |
|
assert mode in ['r', 'a', 'w'] |
|
self.f = io.open(filename, mode, encoding=encoding) |
|
self.mode = mode |
|
|
|
def __enter__(self): |
|
exclusive = self.mode != 'r' |
|
try: |
|
_lock_file(self.f, exclusive) |
|
except IOError: |
|
self.f.close() |
|
raise |
|
return self |
|
|
|
def __exit__(self, etype, value, traceback): |
|
try: |
|
_unlock_file(self.f) |
|
finally: |
|
self.f.close() |
|
|
|
def __iter__(self): |
|
return iter(self.f) |
|
|
|
def write(self, *args): |
|
return self.f.write(*args) |
|
|
|
def read(self, *args): |
|
return self.f.read(*args) |
|
|
|
|
|
def get_filesystem_encoding(): |
|
encoding = sys.getfilesystemencoding() |
|
return encoding if encoding is not None else 'utf-8' |
|
|
|
|
|
def shell_quote(args): |
|
quoted_args = [] |
|
encoding = get_filesystem_encoding() |
|
for a in args: |
|
if isinstance(a, bytes): |
|
# We may get a filename encoded with 'encodeFilename' |
|
a = a.decode(encoding) |
|
quoted_args.append(pipes.quote(a)) |
|
return ' '.join(quoted_args) |
|
|
|
|
|
def takewhile_inclusive(pred, seq): |
|
""" Like itertools.takewhile, but include the latest evaluated element |
|
(the first element so that Not pred(e)) """ |
|
for e in seq: |
|
yield e |
|
if not pred(e): |
|
return |
|
|
|
|
|
def smuggle_url(url, data): |
|
""" Pass additional data in a URL for internal use. """ |
|
|
|
sdata = compat_urllib_parse.urlencode( |
|
{'__youtubedl_smuggle': json.dumps(data)}) |
|
return url + '#' + sdata |
|
|
|
|
|
def unsmuggle_url(smug_url, default=None): |
|
if '#__youtubedl_smuggle' not in smug_url: |
|
return smug_url, default |
|
url, _, sdata = smug_url.rpartition('#') |
|
jsond = compat_parse_qs(sdata)['__youtubedl_smuggle'][0] |
|
data = json.loads(jsond) |
|
return url, data |
|
|
|
|
|
def format_bytes(bytes): |
|
if bytes is None: |
|
return 'N/A' |
|
if type(bytes) is str: |
|
bytes = float(bytes) |
|
if bytes == 0.0: |
|
exponent = 0 |
|
else: |
|
exponent = int(math.log(bytes, 1024.0)) |
|
suffix = ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'][exponent] |
|
converted = float(bytes) / float(1024 ** exponent) |
|
return '%.2f%s' % (converted, suffix) |
|
|
|
|
|
def parse_filesize(s): |
|
if s is None: |
|
return None |
|
|
|
# The lower-case forms are of course incorrect and inofficial, |
|
# but we support those too |
|
_UNIT_TABLE = { |
|
'B': 1, |
|
'b': 1, |
|
'KiB': 1024, |
|
'KB': 1000, |
|
'kB': 1024, |
|
'Kb': 1000, |
|
'MiB': 1024 ** 2, |
|
'MB': 1000 ** 2, |
|
'mB': 1024 ** 2, |
|
'Mb': 1000 ** 2, |
|
'GiB': 1024 ** 3, |
|
'GB': 1000 ** 3, |
|
'gB': 1024 ** 3, |
|
'Gb': 1000 ** 3, |
|
'TiB': 1024 ** 4, |
|
'TB': 1000 ** 4, |
|
'tB': 1024 ** 4, |
|
'Tb': 1000 ** 4, |
|
'PiB': 1024 ** 5, |
|
'PB': 1000 ** 5, |
|
'pB': 1024 ** 5, |
|
'Pb': 1000 ** 5, |
|
'EiB': 1024 ** 6, |
|
'EB': 1000 ** 6, |
|
'eB': 1024 ** 6, |
|
'Eb': 1000 ** 6, |
|
'ZiB': 1024 ** 7, |
|
'ZB': 1000 ** 7, |
|
'zB': 1024 ** 7, |
|
'Zb': 1000 ** 7, |
|
'YiB': 1024 ** 8, |
|
'YB': 1000 ** 8, |
|
'yB': 1024 ** 8, |
|
'Yb': 1000 ** 8, |
|
} |
|
|
|
units_re = '|'.join(re.escape(u) for u in _UNIT_TABLE) |
|
m = re.match( |
|
r'(?P<num>[0-9]+(?:[,.][0-9]*)?)\s*(?P<unit>%s)' % units_re, s) |
|
if not m: |
|
return None |
|
|
|
num_str = m.group('num').replace(',', '.') |
|
mult = _UNIT_TABLE[m.group('unit')] |
|
return int(float(num_str) * mult) |
|
|
|
|
|
def get_term_width(): |
|
columns = compat_getenv('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 = [ |
|
'January', 'February', 'March', 'April', 'May', 'June', |
|
'July', 'August', 'September', 'October', 'November', '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};)', |
|
'&', |
|
xml_str) |
|
|
|
|
|
def setproctitle(title): |
|
assert isinstance(title, compat_str) |
|
try: |
|
libc = ctypes.cdll.LoadLibrary("libc.so.6") |
|
except OSError: |
|
return |
|
title_bytes = title.encode('utf-8') |
|
buf = ctypes.create_string_buffer(len(title_bytes)) |
|
buf.value = title_bytes |
|
try: |
|
libc.prctl(15, buf, 0, 0, 0) |
|
except AttributeError: |
|
return # Strange libc, just skip this |
|
|
|
|
|
def remove_start(s, start): |
|
if s.startswith(start): |
|
return s[len(start):] |
|
return s |
|
|
|
|
|
def remove_end(s, end): |
|
if s.endswith(end): |
|
return s[:-len(end)] |
|
return s |
|
|
|
|
|
def url_basename(url): |
|
path = compat_urlparse.urlparse(url).path |
|
return path.strip('/').split('/')[-1] |
|
|
|
|
|
class HEADRequest(compat_urllib_request.Request): |
|
def get_method(self): |
|
return "HEAD" |
|
|
|
|
|
def int_or_none(v, scale=1, default=None, get_attr=None, invscale=1): |
|
if get_attr: |
|
if v is not None: |
|
v = getattr(v, get_attr, None) |
|
if v == '': |
|
v = None |
|
return default if v is None else (int(v) * invscale // scale) |
|
|
|
|
|
def str_or_none(v, default=None): |
|
return default if v is None else compat_str(v) |
|
|
|
|
|
def str_to_int(int_str): |
|
""" A more relaxed version of int_or_none """ |
|
if int_str is None: |
|
return None |
|
int_str = re.sub(r'[,\.\+]', '', int_str) |
|
return int(int_str) |
|
|
|
|
|
def float_or_none(v, scale=1, invscale=1, default=None): |
|
return default if v is None else (float(v) * invscale / scale) |
|
|
|
|
|
def parse_duration(s): |
|
if s is None: |
|
return None |
|
|
|
s = s.strip() |
|
|
|
m = re.match( |
|
r'''(?ix)T? |
|
(?: |
|
(?P<only_mins>[0-9.]+)\s*(?:mins?|minutes?)\s*| |
|
(?P<only_hours>[0-9.]+)\s*(?:hours?)| |
|
|
|
(?: |
|
(?:(?P<hours>[0-9]+)\s*(?:[:h]|hours?)\s*)? |
|
(?P<mins>[0-9]+)\s*(?:[:m]|mins?|minutes?)\s* |
|
)? |
|
(?P<secs>[0-9]+)(?P<ms>\.[0-9]+)?\s*(?:s|secs?|seconds?)? |
|
)$''', s) |
|
if not m: |
|
return None |
|
res = 0 |
|
if m.group('only_mins'): |
|
return float_or_none(m.group('only_mins'), invscale=60) |
|
if m.group('only_hours'): |
|
return float_or_none(m.group('only_hours'), invscale=60 * 60) |
|
if m.group('secs'): |
|
res += int(m.group('secs')) |
|
if m.group('mins'): |
|
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 '{0}.{1}{2}'.format(name, ext, real_ext) |
|
|
|
|
|
def check_executable(exe, args=[]): |
|
""" Checks if the given binary is installed somewhere in PATH, and returns its name. |
|
args can be a list of arguments for a short output (like -version) """ |
|
try: |
|
subprocess.Popen([exe] + args, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate() |
|
except OSError: |
|
return False |
|
return exe |
|
|
|
|
|
def get_exe_version(exe, args=['--version'], |
|
version_re=None, unrecognized='present'): |
|
""" Returns the version of the specified executable, |
|
or False if the executable is not present """ |
|
try: |
|
out, _ = subprocess.Popen( |
|
[exe] + args, |
|
stdout=subprocess.PIPE, stderr=subprocess.STDOUT).communicate() |
|
except OSError: |
|
return False |
|
if isinstance(out, bytes): # Python 2.x |
|
out = out.decode('ascii', 'ignore') |
|
return detect_exe_version(out, version_re, unrecognized) |
|
|
|
|
|
def detect_exe_version(output, version_re=None, unrecognized='present'): |
|
assert isinstance(output, compat_str) |
|
if version_re is None: |
|
version_re = r'version\s+([-0-9._a-zA-Z]+)' |
|
m = re.search(version_re, output) |
|
if m: |
|
return m.group(1) |
|
else: |
|
return unrecognized |
|
|
|
|
|
class PagedList(object): |
|
def __len__(self): |
|
# This is only useful for tests |
|
return len(self.getslice()) |
|
|
|
|
|
class OnDemandPagedList(PagedList): |
|
def __init__(self, pagefunc, pagesize): |
|
self._pagefunc = pagefunc |
|
self._pagesize = pagesize |
|
|
|
def getslice(self, start=0, end=None): |
|
res = [] |
|
for pagenum in itertools.count(start // self._pagesize): |
|
firstid = pagenum * self._pagesize |
|
nextfirstid = pagenum * self._pagesize + self._pagesize |
|
if start >= nextfirstid: |
|
continue |
|
|
|
page_results = list(self._pagefunc(pagenum)) |
|
|
|
startv = ( |
|
start % self._pagesize |
|
if firstid <= start < nextfirstid |
|
else 0) |
|
|
|
endv = ( |
|
((end - 1) % self._pagesize) + 1 |
|
if (end is not None and firstid <= end <= nextfirstid) |
|
else None) |
|
|
|
if startv != 0 or endv is not None: |
|
page_results = page_results[startv:endv] |
|
res.extend(page_results) |
|
|
|
# A little optimization - if current page is not "full", ie. does |
|
# not contain page_size videos then we can assume that this page |
|
# is the last one - there are no more ids on further pages - |
|
# i.e. no need to query again. |
|
if len(page_results) + startv < self._pagesize: |
|
break |
|
|
|
# If we got the whole page, but the next page is not interesting, |
|
# break out early as well |
|
if end == nextfirstid: |
|
break |
|
return res |
|
|
|
|
|
class InAdvancePagedList(PagedList): |
|
def __init__(self, pagefunc, pagecount, pagesize): |
|
self._pagefunc = pagefunc |
|
self._pagecount = pagecount |
|
self._pagesize = pagesize |
|
|
|
def getslice(self, start=0, end=None): |
|
res = [] |
|
start_page = start // self._pagesize |
|
end_page = ( |
|
self._pagecount if end is None else (end // self._pagesize + 1)) |
|
skip_elems = start - start_page * self._pagesize |
|
only_more = None if end is None else end - start |
|
for pagenum in range(start_page, end_page): |
|
page = list(self._pagefunc(pagenum)) |
|
if skip_elems: |
|
page = page[skip_elems:] |
|
skip_elems = None |
|
if only_more is not None: |
|
if len(page) < only_more: |
|
only_more -= len(page) |
|
else: |
|
page = page[:only_more] |
|
res.extend(page) |
|
break |
|
res.extend(page) |
|
return res |
|
|
|
|
|
def uppercase_escape(s): |
|
unicode_escape = codecs.getdecoder('unicode_escape') |
|
return re.sub( |
|
r'\\U[0-9a-fA-F]{8}', |
|
lambda m: unicode_escape(m.group(0))[0], |
|
s) |
|
|
|
|
|
def escape_rfc3986(s): |
|
"""Escape non-ASCII characters as suggested by RFC 3986""" |
|
if sys.version_info < (3, 0) and isinstance(s, unicode): |
|
s = s.encode('utf-8') |
|
return compat_urllib_parse.quote(s, b"%/;:@&=+$,!~*'()?#[]") |
|
|
|
|
|
def escape_url(url): |
|
"""Escape URL as suggested by RFC 3986""" |
|
url_parsed = compat_urllib_parse_urlparse(url) |
|
return url_parsed._replace( |
|
path=escape_rfc3986(url_parsed.path), |
|
params=escape_rfc3986(url_parsed.params), |
|
query=escape_rfc3986(url_parsed.query), |
|
fragment=escape_rfc3986(url_parsed.fragment) |
|
).geturl() |
|
|
|
try: |
|
struct.pack('!I', 0) |
|
except TypeError: |
|
# In Python 2.6 (and some 2.7 versions), struct requires a bytes argument |
|
def struct_pack(spec, *args): |
|
if isinstance(spec, compat_str): |
|
spec = spec.encode('ascii') |
|
return struct.pack(spec, *args) |
|
|
|
def struct_unpack(spec, *args): |
|
if isinstance(spec, compat_str): |
|
spec = spec.encode('ascii') |
|
return struct.unpack(spec, *args) |
|
else: |
|
struct_pack = struct.pack |
|
struct_unpack = struct.unpack |
|
|
|
|
|
def read_batch_urls(batch_fd): |
|
def fixup(url): |
|
if not isinstance(url, compat_str): |
|
url = url.decode('utf-8', 'replace') |
|
BOM_UTF8 = '\xef\xbb\xbf' |
|
if url.startswith(BOM_UTF8): |
|
url = url[len(BOM_UTF8):] |
|
url = url.strip() |
|
if url.startswith(('#', ';', ']')): |
|
return False |
|
return url |
|
|
|
with contextlib.closing(batch_fd) as fd: |
|
return [url for url in map(fixup, fd) if url] |
|
|
|
|
|
def urlencode_postdata(*args, **kargs): |
|
return compat_urllib_parse.urlencode(*args, **kargs).encode('ascii') |
|
|
|
|
|
try: |
|
etree_iter = xml.etree.ElementTree.Element.iter |
|
except AttributeError: # Python <=2.6 |
|
etree_iter = lambda n: n.findall('.//*') |
|
|
|
|
|
def parse_xml(s): |
|
class TreeBuilder(xml.etree.ElementTree.TreeBuilder): |
|
def doctype(self, name, pubid, system): |
|
pass # Ignore doctypes |
|
|
|
parser = xml.etree.ElementTree.XMLParser(target=TreeBuilder()) |
|
kwargs = {'parser': parser} if sys.version_info >= (2, 7) else {} |
|
tree = xml.etree.ElementTree.XML(s.encode('utf-8'), **kwargs) |
|
# Fix up XML parser in Python 2.x |
|
if sys.version_info < (3, 0): |
|
for n in etree_iter(tree): |
|
if n.text is not None: |
|
if not isinstance(n.text, compat_str): |
|
n.text = n.text.decode('utf-8') |
|
return tree |
|
|
|
|
|
US_RATINGS = { |
|
'G': 0, |
|
'PG': 10, |
|
'PG-13': 13, |
|
'R': 16, |
|
'NC': 18, |
|
} |
|
|
|
|
|
def parse_age_limit(s): |
|
if s is None: |
|
return None |
|
m = re.match(r'^(?P<age>\d{1,2})\+?$', s) |
|
return int(m.group('age')) if m else US_RATINGS.get(s, None) |
|
|
|
|
|
def strip_jsonp(code): |
|
return re.sub( |
|
r'(?s)^[a-zA-Z0-9_]+\s*\(\s*(.*)\);?\s*?(?://[^\n]*)*$', r'\1', code) |
|
|
|
|
|
def js_to_json(code): |
|
def fix_kv(m): |
|
v = m.group(0) |
|
if v in ('true', 'false', 'null'): |
|
return v |
|
if v.startswith('"'): |
|
return v |
|
if v.startswith("'"): |
|
v = v[1:-1] |
|
v = re.sub(r"\\\\|\\'|\"", lambda m: { |
|
'\\\\': '\\\\', |
|
"\\'": "'", |
|
'"': '\\"', |
|
}[m.group(0)], v) |
|
return '"%s"' % v |
|
|
|
res = re.sub(r'''(?x) |
|
"(?:[^"\\]*(?:\\\\|\\")?)*"| |
|
'(?:[^'\\]*(?:\\\\|\\')?)*'| |
|
[a-zA-Z_][a-zA-Z_0-9]* |
|
''', fix_kv, code) |
|
res = re.sub(r',(\s*\])', lambda m: m.group(1), res) |
|
return res |
|
|
|
|
|
def qualities(quality_ids): |
|
""" Get a numeric quality value out of a list of possible values """ |
|
def q(qid): |
|
try: |
|
return quality_ids.index(qid) |
|
except ValueError: |
|
return -1 |
|
return q |
|
|
|
|
|
DEFAULT_OUTTMPL = '%(title)s-%(id)s.%(ext)s' |
|
|
|
|
|
def limit_length(s, length): |
|
""" Add ellipses to overly long strings """ |
|
if s is None: |
|
return None |
|
ELLIPSES = '...' |
|
if len(s) > length: |
|
return s[:length - len(ELLIPSES)] + ELLIPSES |
|
return s |
|
|
|
|
|
def version_tuple(v): |
|
return tuple(int(e) for e in re.split(r'[-.]', v)) |
|
|
|
|
|
def is_outdated_version(version, limit, assume_new=True): |
|
if not version: |
|
return not assume_new |
|
try: |
|
return version_tuple(version) < version_tuple(limit) |
|
except ValueError: |
|
return not assume_new |
|
|
|
|
|
def ytdl_is_updateable(): |
|
""" Returns if youtube-dl can be updated with -U """ |
|
from zipimport import zipimporter |
|
|
|
return isinstance(globals().get('__loader__'), zipimporter) or hasattr(sys, 'frozen') |
|
|
|
|
|
def args_to_str(args): |
|
# Get a short string representation for a subprocess command |
|
return ' '.join(shlex_quote(a) for a in args)
|
|
|