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Direktori : /lib/python2.7/site-packages/pyasn1/ |
Current File : //lib/python2.7/site-packages/pyasn1/debug.py |
import time import logging from pyasn1.compat.octets import octs2ints from pyasn1 import error from pyasn1 import __version__ flagNone = 0x0000 flagEncoder = 0x0001 flagDecoder = 0x0002 flagAll = 0xffff flagMap = { 'encoder': flagEncoder, 'decoder': flagDecoder, 'all': flagAll } class Printer: 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 built-in 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: defaultPrinter = None def __init__(self, *flags, **options): self._flags = flagNone if options.get('printer') is not None: self._printer = options.get('printer') elif self.defaultPrinter is not None: self._printer = self.defaultPrinter if 'loggerName' in options: # route our logs to parent logger self._printer = Printer( logger=logging.getLogger(options['loggerName']), handler=NullHandler() ) else: self._printer = Printer() self('running pyasn1 version %s' % __version__) for f in flags: inverse = f and f[0] in ('!', '~') if inverse: f = f[1:] try: if inverse: self._flags &= ~flagMap[f] else: self._flags |= flagMap[f] except KeyError: raise error.PyAsn1Error('bad debug flag %s' % f) self('debug category \'%s\' %s' % (f, 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 logger = 0 def setLogger(l): global logger logger = l 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: 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()