import email.utils
import errno
import gzip
+import itertools
import io
import json
import locale
import re
import ssl
import socket
+import struct
import subprocess
import sys
import traceback
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:._]*$', val)
expr = xpath + u"[@%s='%s']" % (key, val)
return node.find(expr)
else:
https_request = http_request
https_response = http_response
+
def unified_strdate(date_str):
"""Return a string with the date in the format YYYYMMDD"""
upload_date = None
#Replace commas
- date_str = date_str.replace(',',' ')
+ date_str = date_str.replace(',', ' ')
# %z (UTC offset) is only supported in python>=3.2
- date_str = re.sub(r' (\+|-)[\d]*$', '', date_str)
+ date_str = re.sub(r' ?(\+|-)[0-9]{2}:?[0-9]{2}$', '', date_str)
format_expressions = [
'%d %B %Y',
+ '%d %b %Y',
'%B %d %Y',
'%b %d %Y',
'%Y-%m-%d',
'%Y-%m-%dT%H:%M:%S.%fZ',
'%Y-%m-%dT%H:%M:%S.%f0Z',
'%Y-%m-%dT%H:%M:%S',
+ '%Y-%m-%dT%H:%M',
]
for expression in format_expressions:
try:
upload_date = datetime.datetime.strptime(date_str, expression).strftime('%Y%m%d')
- except:
+ except ValueError:
pass
if upload_date is None:
timetuple = email.utils.parsedate_tz(date_str)
return today + delta
return datetime.datetime.strptime(date_str, "%Y%m%d").date()
+def hyphenate_date(date_str):
+ """
+ Convert a date in 'YYYYMMDD' format to 'YYYY-MM-DD' format"""
+ match = re.match(r'^(\d\d\d\d)(\d\d)(\d\d)$', 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):
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):
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):
return None
m = re.match(
- r'(?:(?:(?P<hours>[0-9]+):)?(?P<mins>[0-9]+):)?(?P<secs>[0-9]+)$', s)
+ r'(?:(?:(?P<hours>[0-9]+)[:h])?(?P<mins>[0-9]+)[:m])?(?P<secs>[0-9]+)s?$', s)
if not m:
return None
res = int(m.group('secs'))
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
projects / youtube-dl / blobdiff