X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=youtube_dl%2Futils.py;h=29c9b1a4cb6fdef970617fd6b556454cb7eff07d;hb=fac55558ad55344d72cf66033e5f2d2076b2f8cb;hp=918a127cae014377a3b463c810930be1f07a937f;hpb=9a6422a81ed6fafc8a13637803360766c1354f4d;p=youtube-dl diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py index 918a127ca..29c9b1a4c 100644 --- a/youtube_dl/utils.py +++ b/youtube_dl/utils.py @@ -1,11 +1,15 @@ #!/usr/bin/env python # -*- coding: utf-8 -*- +import calendar +import contextlib import ctypes import datetime import email.utils import errno +import getpass import gzip +import itertools import io import json import locale @@ -16,9 +20,11 @@ import platform import re import ssl import socket +import struct import subprocess import sys import traceback +import xml.etree.ElementTree import zlib try: @@ -172,6 +178,11 @@ try: except NameError: compat_chr = chr +try: + from xml.etree.ElementTree import ParseError as compat_xml_parse_error +except ImportError: # Python 2.6 + from xml.parsers.expat import ExpatError as compat_xml_parse_error + def compat_ord(c): if type(c) is int: return c else: return ord(c) @@ -224,7 +235,7 @@ if sys.version_info >= (2,7): def find_xpath_attr(node, xpath, key, val): """ Find the xpath xpath[@key=val] """ assert re.match(r'^[a-zA-Z]+$', key) - assert re.match(r'^[a-zA-Z0-9@\s]*$', val) + assert re.match(r'^[a-zA-Z0-9@\s:._]*$', val) expr = xpath + u"[@%s='%s']" % (key, val) return node.find(expr) else: @@ -491,13 +502,13 @@ def orderedSet(iterable): res.append(el) return res + def unescapeHTML(s): - """ - @param s a string - """ - assert type(s) == type(u'') + if s is None: + return None + assert type(s) == compat_str - result = re.sub(u'(?u)&(.+?);', htmlentity_transform, s) + result = re.sub(r'(?u)&(.+?);', htmlentity_transform, s) return result @@ -750,31 +761,66 @@ class YoutubeDLHandler(compat_urllib_request.HTTPHandler): https_request = http_request https_response = http_response + +def parse_iso8601(date_str): + """ Return a UNIX timestamp from the given date """ + + if date_str is None: + return None + + m = re.search( + r'Z$| ?(?P\+|-)(?P[0-9]{2}):?(?P[0-9]{2})$', + date_str) + if not m: + timezone = datetime.timedelta() + else: + date_str = date_str[:-len(m.group(0))] + if not m.group('sign'): + timezone = datetime.timedelta() + else: + sign = 1 if m.group('sign') == '+' else -1 + timezone = datetime.timedelta( + hours=sign * int(m.group('hours')), + minutes=sign * int(m.group('minutes'))) + + dt = datetime.datetime.strptime(date_str, '%Y-%m-%dT%H:%M:%S') - timezone + return calendar.timegm(dt.timetuple()) + + def unified_strdate(date_str): """Return a string with the date in the format YYYYMMDD""" + + if date_str is None: + return None + upload_date = None #Replace commas - date_str = date_str.replace(',',' ') + date_str = date_str.replace(',', ' ') # %z (UTC offset) is only supported in python>=3.2 - date_str = re.sub(r' (\+|-)[\d]*$', '', date_str) + date_str = re.sub(r' ?(\+|-)[0-9]{2}:?[0-9]{2}$', '', date_str) format_expressions = [ '%d %B %Y', + '%d %b %Y', '%B %d %Y', '%b %d %Y', '%Y-%m-%d', + '%d.%m.%Y', '%d/%m/%Y', '%Y/%m/%d %H:%M:%S', '%Y-%m-%d %H:%M:%S', '%d.%m.%Y %H:%M', + '%d.%m.%Y %H.%M', '%Y-%m-%dT%H:%M:%SZ', '%Y-%m-%dT%H:%M:%S.%fZ', '%Y-%m-%dT%H:%M:%S.%f0Z', '%Y-%m-%dT%H:%M:%S', + '%Y-%m-%dT%H:%M:%S.%f', + '%Y-%m-%dT%H:%M', ] for expression in format_expressions: try: upload_date = datetime.datetime.strptime(date_str, expression).strftime('%Y%m%d') - except: + except ValueError: pass if upload_date is None: timetuple = email.utils.parsedate_tz(date_str) @@ -818,6 +864,15 @@ def date_from_str(date_str): return today + delta return datetime.datetime.strptime(date_str, "%Y%m%d").date() +def hyphenate_date(date_str): + """ + Convert a date in 'YYYYMMDD' format to 'YYYY-MM-DD' format""" + match = re.match(r'^(\d\d\d\d)(\d\d)(\d\d)$', 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): @@ -1027,9 +1082,9 @@ def smuggle_url(url, data): return url + u'#' + sdata -def unsmuggle_url(smug_url): +def unsmuggle_url(smug_url, default=None): if not '#__youtubedl_smuggle' in smug_url: - return smug_url, None + return smug_url, default url, _, sdata = smug_url.rpartition(u'#') jsond = compat_parse_qs(sdata)[u'__youtubedl_smuggle'][0] data = json.loads(jsond) @@ -1083,9 +1138,12 @@ def month_by_name(name): return None -def fix_xml_all_ampersand(xml_str): +def fix_xml_ampersands(xml_str): """Replace all the '&' by '&' in XML""" - return xml_str.replace(u'&', u'&') + return re.sub( + r'&(?!amp;|lt;|gt;|apos;|quot;|#x[0-9a-fA-F]{,4};|#[0-9]{,4};)', + u'&', + xml_str) def setproctitle(title): @@ -1094,11 +1152,11 @@ def setproctitle(title): libc = ctypes.cdll.LoadLibrary("libc.so.6") except OSError: return - title = title - buf = ctypes.create_string_buffer(len(title) + 1) - buf.value = title.encode('utf-8') + title_bytes = title.encode('utf-8') + buf = ctypes.create_string_buffer(len(title_bytes)) + buf.value = title_bytes try: - libc.prctl(15, ctypes.byref(buf), 0, 0, 0) + libc.prctl(15, buf, 0, 0, 0) except AttributeError: return # Strange libc, just skip this @@ -1119,8 +1177,8 @@ class HEADRequest(compat_urllib_request.Request): return "HEAD" -def int_or_none(v): - return v if v is None else int(v) +def int_or_none(v, scale=1): + return v if v is None else (int(v) // scale) def parse_duration(s): @@ -1128,7 +1186,7 @@ def parse_duration(s): return None m = re.match( - r'(?:(?:(?P[0-9]+):)?(?P[0-9]+):)?(?P[0-9]+)$', s) + r'(?:(?:(?P[0-9]+)[:h])?(?P[0-9]+)[:m])?(?P[0-9]+)s?(?::[0-9]+)?$', s) if not m: return None res = int(m.group('secs')) @@ -1142,3 +1200,135 @@ def parse_duration(s): def prepend_extension(filename, ext): name, real_ext = os.path.splitext(filename) return u'{0}.{1}{2}'.format(name, ext, real_ext) + + +def check_executable(exe, args=[]): + """ Checks if the given binary is installed somewhere in PATH, and returns its name. + args can be a list of arguments for a short output (like -version) """ + try: + subprocess.Popen([exe] + args, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate() + except OSError: + return False + return exe + + +class PagedList(object): + def __init__(self, pagefunc, pagesize): + self._pagefunc = pagefunc + self._pagesize = pagesize + + def __len__(self): + # This is only useful for tests + return len(self.getslice()) + + 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 + + +def uppercase_escape(s): + return re.sub( + r'\\U([0-9a-fA-F]{8})', + lambda m: compat_chr(int(m.group(1), base=16)), s) + +try: + struct.pack(u'!I', 0) +except TypeError: + # In Python 2.6 (and some 2.7 versions), struct requires a bytes argument + def struct_pack(spec, *args): + if isinstance(spec, compat_str): + spec = spec.encode('ascii') + return struct.pack(spec, *args) + + def struct_unpack(spec, *args): + if isinstance(spec, compat_str): + spec = spec.encode('ascii') + return struct.unpack(spec, *args) +else: + struct_pack = struct.pack + struct_unpack = struct.unpack + + +def read_batch_urls(batch_fd): + def fixup(url): + if not isinstance(url, compat_str): + url = url.decode('utf-8', 'replace') + BOM_UTF8 = u'\xef\xbb\xbf' + if url.startswith(BOM_UTF8): + url = url[len(BOM_UTF8):] + url = url.strip() + if url.startswith(('#', ';', ']')): + return False + return url + + with contextlib.closing(batch_fd) as fd: + return [url for url in map(fixup, fd) if url] + + +def urlencode_postdata(*args, **kargs): + return compat_urllib_parse.urlencode(*args, **kargs).encode('ascii') + + +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 {} + return xml.etree.ElementTree.XML(s.encode('utf-8'), **kwargs) + + +if sys.version_info < (3, 0) and sys.platform == 'win32': + def compat_getpass(prompt, *args, **kwargs): + if isinstance(prompt, compat_str): + prompt = prompt.encode(preferredencoding()) + return getpass.getpass(prompt, *args, **kwargs) +else: + compat_getpass = getpass.getpass + + +US_RATINGS = { + 'G': 0, + 'PG': 10, + 'PG-13': 13, + 'R': 16, + 'NC': 18, +} + + +def strip_jsonp(code): + return re.sub(r'(?s)^[a-zA-Z_]+\s*\(\s*(.*)\);\s*?\s*$', r'\1', code)