import json
import locale
import os
+import pipes
import platform
import re
import socket
return f
return None
+# On python2.6 the xml.etree.ElementTree.Element methods don't support
+# the namespace parameter
+def xpath_with_ns(path, ns_map):
+ components = [c.split(':') for c in path.split('/')]
+ replaced = []
+ for c in components:
+ if len(c) == 1:
+ replaced.append(c[0])
+ else:
+ ns, tag = c
+ replaced.append('{%s}%s' % (ns_map[ns], tag))
+ return '/'.join(replaced)
+
def htmlentity_transform(matchobj):
"""Transforms an HTML entity to a character.
return u''.join(traceback.format_tb(self.traceback))
+class RegexNotFoundError(ExtractorError):
+ """Error when a regex didn't match"""
+ pass
+
+
class DownloadError(Exception):
"""Download Error exception.
'%Y/%m/%d %H:%M:%S',
'%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',
]
for expression in format_expressions:
try:
cache_root = os.environ.get('XDG_CACHE_HOME',
os.path.expanduser('~/.cache'))
return params.get('cachedir', os.path.join(cache_root, 'youtube-dl'))
+
+
+# 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.lockf(f, fcntl.LOCK_EX if exclusive else fcntl.LOCK_SH)
+
+ def _unlock_file(f):
+ fcntl.lockf(f, fcntl.LOCK_UN)
+
+
+class locked_file(object):
+ def __init__(self, filename, mode, encoding=None):
+ assert mode in ['r', 'a', 'w']
+ self.f = io.open(filename, mode, encoding=encoding)
+ self.mode = mode
+
+ def __enter__(self):
+ exclusive = self.mode != 'r'
+ try:
+ _lock_file(self.f, exclusive)
+ except IOError:
+ self.f.close()
+ raise
+ return self
+
+ def __exit__(self, etype, value, traceback):
+ try:
+ _unlock_file(self.f)
+ finally:
+ self.f.close()
+
+ def __iter__(self):
+ return iter(self.f)
+
+ def write(self, *args):
+ return self.f.write(*args)
+
+ def read(self, *args):
+ return self.f.read(*args)
+
+
+def shell_quote(args):
+ quoted_args = []
+ encoding = sys.getfilesystemencoding()
+ if encoding is None:
+ encoding = 'utf-8'
+ for a in args:
+ if isinstance(a, bytes):
+ # We may get a filename encoded with 'encodeFilename'
+ a = a.decode(encoding)
+ quoted_args.append(pipes.quote(a))
+ return u' '.join(quoted_args)
+
+
+def takewhile_inclusive(pred, seq):
+ """ Like itertools.takewhile, but include the latest evaluated element
+ (the first element so that Not pred(e)) """
+ for e in seq:
+ yield e
+ if not pred(e):
+ return
+
+
+def smuggle_url(url, data):
+ """ Pass additional data in a URL for internal use. """
+
+ sdata = compat_urllib_parse.urlencode(
+ {u'__youtubedl_smuggle': json.dumps(data)})
+ return url + u'#' + sdata
+
+
+def unsmuggle_url(smug_url):
+ if not '#__youtubedl_smuggle' in smug_url:
+ return smug_url, None
+ url, _, sdata = smug_url.rpartition(u'#')
+ jsond = compat_parse_qs(sdata)[u'__youtubedl_smuggle'][0]
+ data = json.loads(jsond)
+ return url, data
projects / youtube-dl / blobdiff