if request:
			id = request.group(1)
			#proto = request.group(2)
			site = request.group(3)
			url_path = request.group(4)
			ip_address = request.group(5)
			self.process(id, site, ip_address, url_path, line)
			return(True)
		else:
			self._log.info('bad request\n')
			self.writeline(line)
			return(False)

	def writeline(self, string):
		self._log.info('sending: ' + string)
		sys.stdout.write(string)
		sys.stdout.flush()

	def loop(self):

		while True:
			line = sys.stdin.readline()
			if len(line) == 0:
				break
			self.check(line)
		self._lock_exit.acquire()

# kqueue enabled class for BSD's
class CheckerKqueue(Checker):
	__slots__ = frozenset(['_kq', '_select', '_queue'])

	def __init__(self):
		# basic initialisation
		Checker.__init__(self)

		# creating data queue
		self._queue = []

	def loop(self):
		# Wait for data by default
		timeout = None
		eof = False
		buffer = ''
		while True:
			# checking if there is any data or witing for data to arrive
			kevs = self._kq.control(None, 1, timeout)
			if len(kevs) > 0 and kevs[0].filter == self._select.KQ_FILTER_READ and kevs[0].data > 0:
				# if kq reports en of stream refuse to read more of it
				if kevs[0].flags >> 15 == 1:
					eof = True
				else:
					# reading data in
					new_buffer = sys.stdin.read(kevs[0].data)
					# if no data was sent - we have reached and of file
					if len(new_buffer) == 0:
						eof = True
					else:
						# adding current buffer to old buffer remains
						buffer += new_buffer
						# splitting to lines
						lines = buffer.split('\n')
						# last line that was not terminate by newline returns to buffer
						buffer = lines[-1]
						# an only if there was at least one newline
						if len(lines) > 1:
							for line in lines[:-1]:
								# add data to the queue
								if self.check(line + '\n'):
									# don't wait for more data, start processing
									timeout = 0
			else:
				if len(self._queue) > 0:
					req = self._queue.pop(0)
					Checker.process(self, req[0], req[1], req[2], req[3])
					if len(self._queue) == 0:
						# wait for data - we have nothing to process
						timeout = None
				elif eof:
					break

	def process(self, id, site, ip_address, url_path, line):
		# simply adding data to the queue
		self._queue.append((id, site, ip_address, url_path))
		self._log.info('request {} queued ({})\n'.format(id, line))

# this classes processes config file and substitutes default values
class Config:
	__slots__ = frozenset(['_config', '_default', '_section'])
	_default = {