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680 lines
23 KiB
680 lines
23 KiB
#!/usr/bin/env python |
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# -*- coding: utf-8 -*- |
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|
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import errno |
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import gzip |
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import io |
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import json |
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import locale |
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import os |
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import re |
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import sys |
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import traceback |
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import zlib |
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import email.utils |
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import socket |
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import datetime |
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|
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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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|
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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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|
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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 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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|
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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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|
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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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|
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try: |
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from urllib.parse import parse_qs as compat_parse_qs |
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except ImportError: # Python 2 |
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# HACK: The following is the correct parse_qs implementation from cpython 3's stdlib. |
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# Python 2's version is apparently totally broken |
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def _unquote(string, encoding='utf-8', errors='replace'): |
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if string == '': |
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return string |
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res = string.split('%') |
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if len(res) == 1: |
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return string |
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if encoding is None: |
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encoding = 'utf-8' |
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if errors is None: |
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errors = 'replace' |
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# pct_sequence: contiguous sequence of percent-encoded bytes, decoded |
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pct_sequence = b'' |
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string = res[0] |
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for item in res[1:]: |
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try: |
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if not item: |
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raise ValueError |
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pct_sequence += item[:2].decode('hex') |
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rest = item[2:] |
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if not rest: |
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# This segment was just a single percent-encoded character. |
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# May be part of a sequence of code units, so delay decoding. |
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# (Stored in pct_sequence). |
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continue |
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except ValueError: |
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rest = '%' + item |
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# Encountered non-percent-encoded characters. Flush the current |
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# pct_sequence. |
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string += pct_sequence.decode(encoding, errors) + rest |
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pct_sequence = b'' |
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if pct_sequence: |
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# Flush the final pct_sequence |
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string += pct_sequence.decode(encoding, errors) |
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return string |
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|
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def _parse_qsl(qs, keep_blank_values=False, strict_parsing=False, |
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encoding='utf-8', errors='replace'): |
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qs, _coerce_result = qs, unicode |
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pairs = [s2 for s1 in qs.split('&') for s2 in s1.split(';')] |
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r = [] |
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for name_value in pairs: |
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if not name_value and not strict_parsing: |
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continue |
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nv = name_value.split('=', 1) |
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if len(nv) != 2: |
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if strict_parsing: |
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raise ValueError("bad query field: %r" % (name_value,)) |
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# Handle case of a control-name with no equal sign |
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if keep_blank_values: |
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nv.append('') |
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else: |
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continue |
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if len(nv[1]) or keep_blank_values: |
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name = nv[0].replace('+', ' ') |
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name = _unquote(name, encoding=encoding, errors=errors) |
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name = _coerce_result(name) |
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value = nv[1].replace('+', ' ') |
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value = _unquote(value, encoding=encoding, errors=errors) |
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value = _coerce_result(value) |
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r.append((name, value)) |
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return r |
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def compat_parse_qs(qs, keep_blank_values=False, strict_parsing=False, |
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encoding='utf-8', errors='replace'): |
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parsed_result = {} |
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pairs = _parse_qsl(qs, keep_blank_values, strict_parsing, |
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encoding=encoding, errors=errors) |
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for name, value in pairs: |
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if name in parsed_result: |
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parsed_result[name].append(value) |
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else: |
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parsed_result[name] = [value] |
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return parsed_result |
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try: |
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compat_str = unicode # Python 2 |
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except NameError: |
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compat_str = str |
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|
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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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|
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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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|
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# This is not clearly defined otherwise |
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compiled_regex_type = type(re.compile('')) |
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std_headers = { |
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'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20100101 Firefox/10.0', |
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'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7', |
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'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', |
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'Accept-Encoding': 'gzip, deflate', |
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'Accept-Language': 'en-us,en;q=0.5', |
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} |
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def preferredencoding(): |
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"""Get preferred encoding. |
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|
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Returns the best encoding scheme for the system, based on |
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locale.getpreferredencoding() and some further tweaks. |
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""" |
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try: |
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pref = locale.getpreferredencoding() |
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u'TEST'.encode(pref) |
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except: |
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pref = 'UTF-8' |
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return pref |
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if sys.version_info < (3,0): |
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def compat_print(s): |
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print(s.encode(preferredencoding(), 'xmlcharrefreplace')) |
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else: |
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def compat_print(s): |
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assert type(s) == type(u'') |
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print(s) |
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# In Python 2.x, json.dump expects a bytestream. |
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# In Python 3.x, it writes to a character stream |
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if sys.version_info < (3,0): |
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def write_json_file(obj, fn): |
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with open(fn, 'wb') as f: |
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json.dump(obj, f) |
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else: |
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def write_json_file(obj, fn): |
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with open(fn, 'w', encoding='utf-8') as f: |
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json.dump(obj, f) |
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|
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def htmlentity_transform(matchobj): |
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"""Transforms an HTML entity to a character. |
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This function receives a match object and is intended to be used with |
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the re.sub() function. |
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""" |
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entity = matchobj.group(1) |
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# Known non-numeric HTML entity |
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if entity in compat_html_entities.name2codepoint: |
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return compat_chr(compat_html_entities.name2codepoint[entity]) |
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mobj = re.match(u'(?u)#(x?\\d+)', entity) |
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if mobj is not None: |
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numstr = mobj.group(1) |
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if numstr.startswith(u'x'): |
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base = 16 |
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numstr = u'0%s' % numstr |
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else: |
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base = 10 |
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return compat_chr(int(numstr, base)) |
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# Unknown entity in name, return its literal representation |
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return (u'&%s;' % entity) |
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compat_html_parser.locatestarttagend = re.compile(r"""<[a-zA-Z][-.a-zA-Z0-9:_]*(?:\s+(?:(?<=['"\s])[^\s/>][^\s/=>]*(?:\s*=+\s*(?:'[^']*'|"[^"]*"|(?!['"])[^>\s]*))?\s*)*)?\s*""", re.VERBOSE) # backport bugfix |
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class AttrParser(compat_html_parser.HTMLParser): |
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"""Modified HTMLParser that isolates a tag with the specified attribute""" |
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def __init__(self, attribute, value): |
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self.attribute = attribute |
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self.value = value |
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self.result = None |
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self.started = False |
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self.depth = {} |
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self.html = None |
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self.watch_startpos = False |
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self.error_count = 0 |
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compat_html_parser.HTMLParser.__init__(self) |
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|
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def error(self, message): |
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if self.error_count > 10 or self.started: |
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raise compat_html_parser.HTMLParseError(message, self.getpos()) |
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self.rawdata = '\n'.join(self.html.split('\n')[self.getpos()[0]:]) # skip one line |
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self.error_count += 1 |
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self.goahead(1) |
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def loads(self, html): |
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self.html = html |
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self.feed(html) |
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self.close() |
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|
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def handle_starttag(self, tag, attrs): |
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attrs = dict(attrs) |
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if self.started: |
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self.find_startpos(None) |
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if self.attribute in attrs and attrs[self.attribute] == self.value: |
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self.result = [tag] |
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self.started = True |
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self.watch_startpos = True |
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if self.started: |
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if not tag in self.depth: self.depth[tag] = 0 |
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self.depth[tag] += 1 |
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def handle_endtag(self, tag): |
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if self.started: |
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if tag in self.depth: self.depth[tag] -= 1 |
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if self.depth[self.result[0]] == 0: |
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self.started = False |
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self.result.append(self.getpos()) |
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|
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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() |
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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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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 == u'-': |
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if sys.platform == 'win32': |
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import msvcrt |
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msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY) |
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return (sys.stdout.buffer if hasattr(sys.stdout, 'buffer') else sys.stdout, filename) |
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stream = open(encodeFilename(filename), open_mode) |
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return (stream, filename) |
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except (IOError, OSError) as err: |
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if err.errno in (errno.EACCES,): |
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raise |
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|
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# In case of error, try to remove win32 forbidden chars |
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alt_filename = os.path.join( |
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re.sub(u'[/<>:"\\|\\\\?\\*]', u'#', path_part) |
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for path_part in os.path.split(filename) |
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) |
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if alt_filename == filename: |
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raise |
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else: |
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# An exception here should be caught in the caller |
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stream = open(encodeFilename(filename), open_mode) |
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return (stream, alt_filename) |
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|
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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 = u''.join(map(replace_insane, s)) |
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if not is_id: |
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while '__' in result: |
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result = result.replace('__', '_') |
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result = result.strip('_') |
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# Common case of "Foreign band name - English song title" |
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if restricted and result.startswith('-_'): |
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result = result[2:] |
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if not result: |
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result = '_' |
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return result |
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|
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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 unescapeHTML(s): |
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""" |
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@param s a string |
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""" |
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assert type(s) == type(u'') |
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|
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result = re.sub(u'(?u)&(.+?);', htmlentity_transform, s) |
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return result |
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|
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def encodeFilename(s): |
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""" |
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@param s The name of the file |
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""" |
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|
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assert type(s) == type(u'') |
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|
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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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|
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if sys.platform == 'win32' and sys.getwindowsversion()[0] >= 5: |
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# Pass u'' directly to use Unicode APIs on Windows 2000 and up |
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# (Detecting Windows NT 4 is tricky because 'major >= 4' would |
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# match Windows 9x series as well. Besides, NT 4 is obsolete.) |
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return s |
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else: |
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encoding = sys.getfilesystemencoding() |
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if encoding is None: |
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encoding = 'utf-8' |
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return s.encode(encoding, 'ignore') |
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|
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def decodeOption(optval): |
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if optval is None: |
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return optval |
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if isinstance(optval, bytes): |
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optval = optval.decode(preferredencoding()) |
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|
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assert isinstance(optval, compat_str) |
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return optval |
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|
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def formatSeconds(secs): |
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if secs > 3600: |
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return '%d:%02d:%02d' % (secs // 3600, (secs % 3600) // 60, secs % 60) |
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elif secs > 60: |
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return '%d:%02d' % (secs // 60, secs % 60) |
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else: |
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return '%d' % secs |
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|
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def make_HTTPS_handler(opts): |
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if sys.version_info < (3,2): |
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# Python's 2.x handler is very simplistic |
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return compat_urllib_request.HTTPSHandler() |
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else: |
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import ssl |
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context = ssl.SSLContext(ssl.PROTOCOL_SSLv23) |
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context.set_default_verify_paths() |
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|
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context.verify_mode = (ssl.CERT_NONE |
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if opts.no_check_certificate |
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else ssl.CERT_REQUIRED) |
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return compat_urllib_request.HTTPSHandler(context=context) |
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|
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class ExtractorError(Exception): |
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"""Error during info extraction.""" |
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def __init__(self, msg, tb=None): |
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""" tb, if given, is the original traceback (so that it can be printed out). """ |
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|
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if not sys.exc_info()[0] in (compat_urllib_error.URLError, socket.timeout, UnavailableVideoError): |
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msg = msg + u'; please report this issue on http://yt-dl.org/bug' |
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super(ExtractorError, self).__init__(msg) |
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|
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self.traceback = tb |
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self.exc_info = sys.exc_info() # preserve original exception |
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|
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def format_traceback(self): |
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if self.traceback is None: |
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return None |
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return u''.join(traceback.format_tb(self.traceback)) |
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|
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|
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class DownloadError(Exception): |
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"""Download Error exception. |
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|
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This exception may be thrown by FileDownloader objects if they are not |
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configured to continue on errors. They will contain the appropriate |
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error message. |
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""" |
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def __init__(self, msg, exc_info=None): |
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""" exc_info, if given, is the original exception that caused the trouble (as returned by sys.exc_info()). """ |
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super(DownloadError, self).__init__(msg) |
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self.exc_info = exc_info |
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|
|
|
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class SameFileError(Exception): |
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"""Same File exception. |
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|
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This exception will be thrown by FileDownloader objects if they detect |
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multiple files would have to be downloaded to the same file on disk. |
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""" |
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pass |
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|
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|
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class PostProcessingError(Exception): |
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"""Post Processing exception. |
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|
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This exception may be raised by PostProcessor's .run() method to |
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indicate an error in the postprocessing task. |
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""" |
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def __init__(self, msg): |
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self.msg = msg |
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|
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class MaxDownloadsReached(Exception): |
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""" --max-downloads limit has been reached. """ |
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pass |
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|
|
|
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class UnavailableVideoError(Exception): |
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"""Unavailable Format exception. |
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|
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This exception will be thrown when a video is requested |
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in a format that is not available for that video. |
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""" |
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pass |
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|
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|
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class ContentTooShortError(Exception): |
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"""Content Too Short exception. |
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|
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This exception may be raised by FileDownloader objects when a file they |
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download is too small for what the server announced first, indicating |
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the connection was probably interrupted. |
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""" |
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# Both in bytes |
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downloaded = None |
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expected = None |
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|
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def __init__(self, downloaded, expected): |
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self.downloaded = downloaded |
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self.expected = expected |
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|
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class YoutubeDLHandler(compat_urllib_request.HTTPHandler): |
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"""Handler for HTTP requests and responses. |
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|
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This class, when installed with an OpenerDirector, automatically adds |
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the standard headers to every HTTP request and handles gzipped and |
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deflated responses from web servers. If compression is to be avoided in |
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a particular request, the original request in the program code only has |
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to include the HTTP header "Youtubedl-No-Compression", which will be |
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removed before making the real request. |
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|
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Part of this code was copied from: |
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|
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http://techknack.net/python-urllib2-handlers/ |
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|
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Andrew Rowls, the author of that code, agreed to release it to the |
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public domain. |
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""" |
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|
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@staticmethod |
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def deflate(data): |
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try: |
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return zlib.decompress(data, -zlib.MAX_WBITS) |
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except zlib.error: |
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return zlib.decompress(data) |
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|
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@staticmethod |
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def addinfourl_wrapper(stream, headers, url, code): |
|
if hasattr(compat_urllib_request.addinfourl, 'getcode'): |
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return compat_urllib_request.addinfourl(stream, headers, url, code) |
|
ret = compat_urllib_request.addinfourl(stream, headers, url) |
|
ret.code = code |
|
return ret |
|
|
|
def http_request(self, req): |
|
for h,v in std_headers.items(): |
|
if h in req.headers: |
|
del req.headers[h] |
|
req.add_header(h, v) |
|
if 'Youtubedl-no-compression' in req.headers: |
|
if 'Accept-encoding' in req.headers: |
|
del req.headers['Accept-encoding'] |
|
del req.headers['Youtubedl-no-compression'] |
|
if 'Youtubedl-user-agent' in req.headers: |
|
if 'User-agent' in req.headers: |
|
del req.headers['User-agent'] |
|
req.headers['User-agent'] = req.headers['Youtubedl-user-agent'] |
|
del req.headers['Youtubedl-user-agent'] |
|
return req |
|
|
|
def http_response(self, req, resp): |
|
old_resp = resp |
|
# gzip |
|
if resp.headers.get('Content-encoding', '') == 'gzip': |
|
gz = gzip.GzipFile(fileobj=io.BytesIO(resp.read()), mode='r') |
|
resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code) |
|
resp.msg = old_resp.msg |
|
# deflate |
|
if resp.headers.get('Content-encoding', '') == 'deflate': |
|
gz = io.BytesIO(self.deflate(resp.read())) |
|
resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code) |
|
resp.msg = old_resp.msg |
|
return resp |
|
|
|
https_request = http_request |
|
https_response = http_response |
|
|
|
def unified_strdate(date_str): |
|
"""Return a string with the date in the format YYYYMMDD""" |
|
upload_date = None |
|
#Replace commas |
|
date_str = date_str.replace(',',' ') |
|
# %z (UTC offset) is only supported in python>=3.2 |
|
date_str = re.sub(r' (\+|-)[\d]*$', '', date_str) |
|
format_expressions = ['%d %B %Y', '%B %d %Y', '%b %d %Y', '%Y-%m-%d', '%d/%m/%Y', '%Y/%m/%d %H:%M:%S'] |
|
for expression in format_expressions: |
|
try: |
|
upload_date = datetime.datetime.strptime(date_str, expression).strftime('%Y%m%d') |
|
except: |
|
pass |
|
return upload_date |
|
|
|
def date_from_str(date_str): |
|
""" |
|
Return a datetime object from a string in the format YYYYMMDD or |
|
(now|today)[+-][0-9](day|week|month|year)(s)?""" |
|
today = datetime.date.today() |
|
if date_str == 'now'or date_str == 'today': |
|
return today |
|
match = re.match('(now|today)(?P<sign>[+-])(?P<time>\d+)(?P<unit>day|week|month|year)(s)?', date_str) |
|
if match is not None: |
|
sign = match.group('sign') |
|
time = int(match.group('time')) |
|
if sign == '-': |
|
time = -time |
|
unit = match.group('unit') |
|
#A bad aproximation? |
|
if unit == 'month': |
|
unit = 'day' |
|
time *= 30 |
|
elif unit == 'year': |
|
unit = 'day' |
|
time *= 365 |
|
unit += 's' |
|
delta = datetime.timedelta(**{unit: time}) |
|
return today + delta |
|
return datetime.datetime.strptime(date_str, "%Y%m%d").date() |
|
|
|
class DateRange(object): |
|
"""Represents a time interval between two dates""" |
|
def __init__(self, start=None, end=None): |
|
"""start and end must be strings in the format accepted by date""" |
|
if start is not None: |
|
self.start = date_from_str(start) |
|
else: |
|
self.start = datetime.datetime.min.date() |
|
if end is not None: |
|
self.end = date_from_str(end) |
|
else: |
|
self.end = datetime.datetime.max.date() |
|
if self.start > self.end: |
|
raise ValueError('Date range: "%s" , the start date must be before the end date' % self) |
|
@classmethod |
|
def day(cls, day): |
|
"""Returns a range that only contains the given day""" |
|
return cls(day,day) |
|
def __contains__(self, date): |
|
"""Check if the date is in the range""" |
|
if not isinstance(date, datetime.date): |
|
date = date_from_str(date) |
|
return self.start <= date <= self.end |
|
def __str__(self): |
|
return '%s - %s' % ( self.start.isoformat(), self.end.isoformat())
|
|
|