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#!/usr/bin/env python
#
# Copyright (C) 2010, Johannes Ponader
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import logging
_logger = logging.getLogger('mathparse')
_logger.setLevel(logging.DEBUG)
import sys, random, time, re, ast, parser
class mathparse_honeypot:
def __init__(self, runaslib=True):
# Seed the random number generator
random.seed(time.time())
def parse(self, drop):
question = drop[0]
answer = drop[1]
# look for "[1-10]" etc.
regexp = r"\[(\d+)-(\d+)]"
_logger.debug('begin parse: ' + str(question))
question = re.split(regexp, question)
_logger.debug('split q1: ' + str(question))
# "\1" stands for random_value[0]
random_values = []
for i in range(1, len(question), 3):
_logger.debug(len(question))
rand_val = str(random.randint(int(question[i]), int(question[i+1])+1))
random_values.append(rand_val)
question[i] = rand_val
question[i+1] = ""
_logger.debug('q1[' + str(i) + ']: ' + str(question))
# make it one string again
question = u"".join(question)
_logger.debug('join q1: ' + str(question))
# look for markers like "\1"
regexp = r"\\(\d+)"
question = re.split(regexp, question)
_logger.debug('split q2: ' + str(question))
for i in range(1, len(question), 2):
#no error/range checking so far
question[i] = random_values[int(question[i])-1]
_logger.debug('q2[' + str(i) + ']: ' + str(question))
question = u"".join(question)
_logger.debug('join q2: ' + str(question))
# look for expressions to evaluate: "{...}"
regexp = r"\{(.*)}"
question = re.split(regexp, question)
_logger.debug('split q3: ' + str(question))
for i in range(1, len(question), 2):
# Sicherheitsluecke!
# vgl. http://effbot.org/zone/librarybook-core-eval.htm
question[i] = str(eval(question[i]))
_logger.debug('q3[' + str(i) + ']: ' + str(question))
question = u"".join(question)
_logger.debug('join q3: ' + str(question))
regexp = r"\\(\d+)"
answer = re.split(regexp, answer)
_logger.debug('split a1: ' + str(question))
for i in range(1, len(answer), 2):
answer[i] = random_values[int(answer[i])-1]
_logger.debug('a1[' + str(i) + ']: ' + str(question))
answer = u"".join(answer)
_logger.debug('join a1: ' + str(question))
regexp = r"\{(.*)}"
answer = re.split(regexp, answer)
_logger.debug('split a2: ' + str(question))
for i in range(1, len(answer), 2):
answer[i] = str(eval(answer[i]))
# answer[i] = str(ast.literal_eval(ast.parse(answer[i])))
_logger.debug('a2[' + str(i) + ']: ' + str(question))
answer = u"".join(answer)
_logger.debug('join a2: ' + str(question))
return [question,answer]
if __name__ == '__main__':
mathparse_honeypot(False)
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