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gevent.core.read_event(self._fd.fileno(), self._wait_helper)
else:
# EOF found, sending EOF to queue
self.put_nowait(None)
stdin = FReadlineQueue(sys.stdin)
class FWritelineQueue(gevent.queue.JoinableQueue):
# storing fileno, io interface, leftover
__slots__ = frozenset(['_fileno', '_io', '_tail'])
def __init__(self, fd, closefd = True):
import io
# initialising class
gevent.queue.JoinableQueue.__init__(self)
# storing fileno
self._fileno = fd.fileno()
# creating interface
self._io = io.FileIO(self._fileno, 'w', closefd)
# using empty tail
self._tail = None
# putting file to nonblocking mode
fcntl.fcntl(self._fileno, fcntl.F_SETFL, fcntl.fcntl(self._fileno, fcntl.F_GETFL) | os.O_NONBLOCK)
def __del__(self):
# purge queue before deleting
if not self.empty():
self.join()
def put(self, item, block=True, timeout=None):
# calling real put
gevent.queue.JoinableQueue.put(self, item, block, timeout)
# installing event handler
gevent.core.write_event(self._fileno, self._wait_helper)
def _wait_helper(self, ev, evtype):
# XXX ev, evtype checking?
# checking leftover
while True:
if self._tail == None:
try:
self._tail = str(self.get_nowait()).encode('utf-8') + '\n'
except gevent.queue.Empty:
self._tail = None
return
# writing tail
written = self._io.write(self._tail)
length = len(self._tail)
if written == length:
self._tail = None
elif written < length:
self._tail = self._tail[written:]
break
else:
break
# reinstalling event handler
gevent.core.write_event(self._fileno, self._wait_helper)
# wrapper around database
class tagDB(object):
__slots__ = frozenset(['_cursor', '_db'])
def __init__(self):
config.section('database')
if config['host'] == None:
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def dump_conf(self):
self._cursor.execute("select netmask, redirect_url, from_weekday, to_weekday, from_time, to_time, tag::text from rules")
return(self._field_names(), self._cursor.fetchall())
# abstract class with basic checking functionality
class Checker(object):
__slots__ = frozenset(['_db', '_log', '_queue', '_request'])
__slots__ = frozenset(['_db', '_log', '_queue', '_request', '_stdout'])
def __init__(self, queue, logger):
self._db = tagDB()
self._log = logger
self._log.info('started\n')
self._log.info('started')
self._request = re.compile('^([0-9]+)\ (http|ftp):\/\/([-\w.:]+)\/([^ ]*)\ ([0-9.]+)\/(-|[\w\.]+)\ (-|\w+)\ (-|GET|HEAD|POST).*$')
self._queue = queue
self._stdout = FWritelineQueue(sys.stdout, False)
def process(self, id, site, ip_address, url_path, line = None):
#self._log.info('trying {}\n'.format(site))
#self._log.info('trying {}'.format(site))
result = self._db.check(site, ip_address)
reply = None
#self._log.info('got {} lines from database'.format(len(result)))
for row in result:
if row != None and row[0] != None:
if row[1] != None:
self._log.info('trying regexp "{}" versus "{}"\n'.format(row[1], url_path))
self._log.info('trying regexp "{}" versus "{}"'.format(row[1], url_path))
try:
if re.compile(row[1]).match(url_path):
reply = row[0].format(url_path)
else:
continue
except:
self._log.info("can't compile regexp")
else:
reply = row[0].format(url_path)
if reply != None:
self.writeline('{} {}\n'.format(id, reply))
self.writeline('{} {}'.format(id, reply))
return(True)
self.writeline('{}\n'.format(id))
self.writeline('{}'.format(id))
def check(self):
while True:
line = self._queue.get()
if line == None:
break
#self._log.info('request: ' + line)
request = self._request.match(line)
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)
else:
self._log.info('bad request\n')
self.writeline(line + '\n')
self.writeline(line)
def writeline(self, string):
self._log.info('sending: ' + string)
sys.stdout.write(string)
sys.stdout.flush()
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