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141 lines
3.5 KiB
141 lines
3.5 KiB
import sys
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import types
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import platform
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import warnings
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try:
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import urlparse
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except ImportError: # pragma: no cover
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from urllib import parse as urlparse
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# True if we are running on Python 3.
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PY2 = sys.version_info[0] == 2
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PY3 = sys.version_info[0] == 3
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# True if we are running on Windows
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WIN = platform.system() == 'Windows'
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if PY3: # pragma: no cover
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string_types = str,
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integer_types = int,
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class_types = type,
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text_type = str
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binary_type = bytes
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long = int
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else:
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string_types = basestring,
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integer_types = (int, long)
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class_types = (type, types.ClassType)
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text_type = unicode
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binary_type = str
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long = long
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if PY3: # pragma: no cover
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from urllib.parse import unquote_to_bytes
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def unquote_bytes_to_wsgi(bytestring):
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return unquote_to_bytes(bytestring).decode('latin-1')
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else:
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from urlparse import unquote as unquote_to_bytes
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def unquote_bytes_to_wsgi(bytestring):
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return unquote_to_bytes(bytestring)
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def text_(s, encoding='latin-1', errors='strict'):
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""" If ``s`` is an instance of ``binary_type``, return
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``s.decode(encoding, errors)``, otherwise return ``s``"""
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if isinstance(s, binary_type):
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return s.decode(encoding, errors)
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return s # pragma: no cover
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if PY3: # pragma: no cover
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def tostr(s):
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if isinstance(s, text_type):
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s = s.encode('latin-1')
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return str(s, 'latin-1', 'strict')
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def tobytes(s):
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return bytes(s, 'latin-1')
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else:
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tostr = str
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def tobytes(s):
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return s
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try:
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from Queue import (
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Queue,
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Empty,
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)
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except ImportError: # pragma: no cover
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from queue import (
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Queue,
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Empty,
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)
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if PY3: # pragma: no cover
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import builtins
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exec_ = getattr(builtins, "exec")
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def reraise(tp, value, tb=None):
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if value is None:
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value = tp
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if value.__traceback__ is not tb:
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raise value.with_traceback(tb)
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raise value
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del builtins
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else: # pragma: no cover
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def exec_(code, globs=None, locs=None):
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"""Execute code in a namespace."""
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if globs is None:
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frame = sys._getframe(1)
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globs = frame.f_globals
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if locs is None:
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locs = frame.f_locals
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del frame
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elif locs is None:
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locs = globs
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exec("""exec code in globs, locs""")
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exec_("""def reraise(tp, value, tb=None):
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raise tp, value, tb
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""")
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try:
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from StringIO import StringIO as NativeIO
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except ImportError: # pragma: no cover
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from io import StringIO as NativeIO
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try:
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import httplib
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except ImportError: # pragma: no cover
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from http import client as httplib
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try:
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MAXINT = sys.maxint
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except AttributeError: # pragma: no cover
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MAXINT = sys.maxsize
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# Fix for issue reported in https://github.com/Pylons/waitress/issues/138,
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# Python on Windows may not define IPPROTO_IPV6 in socket.
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import socket
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HAS_IPV6 = socket.has_ipv6
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if hasattr(socket, 'IPPROTO_IPV6') and hasattr(socket, 'IPV6_V6ONLY'):
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IPPROTO_IPV6 = socket.IPPROTO_IPV6
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IPV6_V6ONLY = socket.IPV6_V6ONLY
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else: # pragma: no cover
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if WIN:
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IPPROTO_IPV6 = 41
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IPV6_V6ONLY = 27
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else:
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warnings.warn(
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'OS does not support required IPv6 socket flags. This is requirement '
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'for Waitress. Please open an issue at https://github.com/Pylons/waitress. '
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'IPv6 support has been disabled.',
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RuntimeWarning
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)
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HAS_IPV6 = False
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