122 lines
4.1 KiB
Python
122 lines
4.1 KiB
Python
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# -*- coding: utf-8 -*-
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'''
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calc.py: DNS-based czech-english dictionary
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Copyright (c) 2009, Zdenek Vasicek (vasicek AT fit.vutbr.cz)
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Marek Vavrusa (xvavru00 AT stud.fit.vutbr.cz)
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This software is open source.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of the organization nor the names of its
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contributors may be used to endorse or promote products derived from this
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software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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'''
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import os
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cz_dict = {}
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en_dict = {}
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def init(id, cfg):
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log_info("pythonmod: dict init")
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f = open("examples/dict_data.txt", "r")
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try:
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for line in f:
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if line.startswith('#'):
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continue
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itm = line.split("\t", 3)
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if len(itm) < 2:
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continue
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en,cs = itm[0:2]
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if not (cs in cz_dict):
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cz_dict[cs] = [en] # [cs] = en
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else:
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cz_dict[cs].append(en) # [cs] = en
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if not (en in en_dict):
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en_dict[en] = [cs] # [en] = cs
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else:
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en_dict[en].append(cs) # [en] = cs
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finally:
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f.close()
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return True
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def deinit(id):
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log_info("pythonmod: dict deinit")
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return True
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def operate(id, event, qstate, qdata):
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if (event == MODULE_EVENT_NEW) or (event == MODULE_EVENT_PASS):
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if qstate.qinfo.qname_str.endswith("._dict_.cz."):
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aword = ' '.join(qstate.qinfo.qname_list[0:-4])
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adict = qstate.qinfo.qname_list[-4]
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log_info("pythonmod: dictionary look up; word:%s dict:%s" % (aword,adict))
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words = []
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if (adict == "en") and (aword in en_dict):
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words = en_dict[aword] # EN -> CS
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if (adict == "cs") and (aword in cz_dict):
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words = cz_dict[aword] # CS -> EN
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if len(words) and ((qstate.qinfo.qtype == RR_TYPE_TXT) or (qstate.qinfo.qtype == RR_TYPE_ANY)):
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msg = DNSMessage(qstate.qinfo.qname_str, RR_TYPE_TXT, RR_CLASS_IN, PKT_RD | PKT_RA | PKT_AA)
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for w in words:
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msg.answer.append("%s 300 IN TXT \"%s\"" % (qstate.qinfo.qname_str,w.replace("\"","\\\"")))
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if not msg.set_return_msg(qstate):
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qstate.ext_state[id] = MODULE_ERROR
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return True
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qstate.return_rcode = RCODE_NOERROR
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qstate.ext_state[id] = MODULE_FINISHED
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return True
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else:
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qstate.return_rcode = RCODE_SERVFAIL
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qstate.ext_state[id] = MODULE_FINISHED
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return True
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else: #Pass on the unknown query to the iterator
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qstate.ext_state[id] = MODULE_WAIT_MODULE
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return True
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elif event == MODULE_EVENT_MODDONE: #the iterator has finished
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#we don't need modify result
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qstate.ext_state[id] = MODULE_FINISHED
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return True
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log_err("pythonmod: Unknown event")
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qstate.ext_state[id] = MODULE_ERROR
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return True
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def inform_super(id, qstate, superqstate, qdata):
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return True
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