%PDF- %PDF-
Direktori : /proc/thread-self/root/usr/lib/python3/dist-packages/pyasn1/ |
Current File : //proc/thread-self/root/usr/lib/python3/dist-packages/pyasn1/debug.py |
# # This file is part of pyasn1 software. # # Copyright (c) 2005-2019, Ilya Etingof <etingof@gmail.com> # License: http://snmplabs.com/pyasn1/license.html # import logging import sys from pyasn1 import __version__ from pyasn1 import error from pyasn1.compat.octets import octs2ints __all__ = ['Debug', 'setLogger', 'hexdump'] DEBUG_NONE = 0x0000 DEBUG_ENCODER = 0x0001 DEBUG_DECODER = 0x0002 DEBUG_ALL = 0xffff FLAG_MAP = { 'none': DEBUG_NONE, 'encoder': DEBUG_ENCODER, 'decoder': DEBUG_DECODER, 'all': DEBUG_ALL } LOGGEE_MAP = {} class Printer(object): # noinspection PyShadowingNames def __init__(self, logger=None, handler=None, formatter=None): if logger is None: logger = logging.getLogger('pyasn1') logger.setLevel(logging.DEBUG) if handler is None: handler = logging.StreamHandler() if formatter is None: formatter = logging.Formatter('%(asctime)s %(name)s: %(message)s') handler.setFormatter(formatter) handler.setLevel(logging.DEBUG) logger.addHandler(handler) self.__logger = logger def __call__(self, msg): self.__logger.debug(msg) def __str__(self): return '<python logging>' if hasattr(logging, 'NullHandler'): NullHandler = logging.NullHandler else: # Python 2.6 and older class NullHandler(logging.Handler): def emit(self, record): pass class Debug(object): defaultPrinter = Printer() def __init__(self, *flags, **options): self._flags = DEBUG_NONE if 'loggerName' in options: # route our logs to parent logger self._printer = Printer( logger=logging.getLogger(options['loggerName']), handler=NullHandler() ) elif 'printer' in options: self._printer = options.get('printer') else: self._printer = self.defaultPrinter self._printer('running pyasn1 %s, debug flags %s' % (__version__, ', '.join(flags))) for flag in flags: inverse = flag and flag[0] in ('!', '~') if inverse: flag = flag[1:] try: if inverse: self._flags &= ~FLAG_MAP[flag] else: self._flags |= FLAG_MAP[flag] except KeyError: raise error.PyAsn1Error('bad debug flag %s' % flag) self._printer("debug category '%s' %s" % (flag, inverse and 'disabled' or 'enabled')) def __str__(self): return 'logger %s, flags %x' % (self._printer, self._flags) def __call__(self, msg): self._printer(msg) def __and__(self, flag): return self._flags & flag def __rand__(self, flag): return flag & self._flags _LOG = DEBUG_NONE def setLogger(userLogger): global _LOG if userLogger: _LOG = userLogger else: _LOG = DEBUG_NONE # Update registered logging clients for module, (name, flags) in LOGGEE_MAP.items(): setattr(module, name, _LOG & flags and _LOG or DEBUG_NONE) def registerLoggee(module, name='LOG', flags=DEBUG_NONE): LOGGEE_MAP[sys.modules[module]] = name, flags setLogger(_LOG) return _LOG def hexdump(octets): return ' '.join( ['%s%.2X' % (n % 16 == 0 and ('\n%.5d: ' % n) or '', x) for n, x in zip(range(len(octets)), octs2ints(octets))] ) class Scope(object): def __init__(self): self._list = [] def __str__(self): return '.'.join(self._list) def push(self, token): self._list.append(token) def pop(self): return self._list.pop() scope = Scope()