mirror of
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python contribution from Zdenek Vasicek and Marek Vavrusa (BSD licensed).
git-svn-id: file:///svn/unbound/trunk@1556 be551aaa-1e26-0410-a405-d3ace91eadb9
This commit is contained in:
Wouter Wijngaards
@@ -0,0 +1,77 @@
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# -*- coding: utf-8 -*-
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'''
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calc.py: DNS-based calculator
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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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||||
|
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This software is open source.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions
|
||||
are met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice,
|
||||
this list of conditions and the following disclaimer.
|
||||
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
|
||||
* Neither the name of the organization nor the names of its
|
||||
contributors may be used to endorse or promote products derived from this
|
||||
software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
|
||||
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
POSSIBILITY OF SUCH DAMAGE.
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||||
'''
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#Try: dig @localhost 1*25._calc_.cz.
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def init(id, cfg): return True
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def deinit(id): return True
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def inform_super(id, qstate, superqstate, qdata): 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("._calc_.cz."):
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try:
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res = eval(''.join(qstate.qinfo.qname_list[0:-3]))
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except:
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res = "exception"
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msg = DNSMessage(qstate.qinfo.qname_str, RR_TYPE_TXT, RR_CLASS_IN, PKT_QR | PKT_RA | PKT_AA) #, 300)
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msg.answer.append("%s 300 IN TXT \"%s\"" % (qstate.qinfo.qname_str,res))
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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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#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:
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#the iterator has finished
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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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@@ -0,0 +1,121 @@
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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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|
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This software is open source.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions
|
||||
are met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice,
|
||||
this list of conditions and the following disclaimer.
|
||||
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
|
||||
* Neither the name of the organization nor the names of its
|
||||
contributors may be used to endorse or promote products derived from this
|
||||
software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
|
||||
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
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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@@ -0,0 +1,6 @@
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* * web
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computer poèítaèový adj: Zdenìk Bro¾
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computer poèítaè n:
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domain doména n: Zdenìk Bro¾
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query otazník n: Zdenìk Bro¾
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network sí» n: [it.] poèítaèová
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@@ -0,0 +1,119 @@
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import os
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'''
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calc.py: Response packet logger
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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)
|
||||
|
||||
This software is open source.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions
|
||||
are met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice,
|
||||
this list of conditions and the following disclaimer.
|
||||
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
|
||||
* Neither the name of the organization nor the names of its
|
||||
contributors may be used to endorse or promote products derived from this
|
||||
software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
|
||||
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
POSSIBILITY OF SUCH DAMAGE.
|
||||
'''
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def dataHex(data, prefix=""):
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"""Converts binary string data to display representation form"""
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res = ""
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for i in range(0, (len(data)+15)/16):
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res += "%s0x%02X | " % (prefix, i*16)
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d = map(lambda x:ord(x), data[i*16:i*16+17])
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for ch in d:
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res += "%02X " % ch
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for i in range(0,17-len(d)):
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res += " "
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res += "| "
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for ch in d:
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if (ch < 32) or (ch > 127):
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res += ". "
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else:
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res += "%c " % ch
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res += "\n"
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return res
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def logDnsMsg(qstate):
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"""Logs response"""
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r = qstate.return_msg.rep
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q = qstate.return_msg.qinfo
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print "-"*100
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print("Query: %s, type: %s (%d), class: %s (%d) " % (
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qstate.qinfo.qname_str, qstate.qinfo.qtype_str, qstate.qinfo.qtype,
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qstate.qinfo.qclass_str, qstate.qinfo.qclass))
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print "-"*100
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print "Return reply :: flags: %04X, QDcount: %d, Security:%d, TTL=%d" % (r.flags, r.qdcount, r.security, r.ttl)
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print " qinfo :: qname: %s %s, qtype: %s, qclass: %s" % (str(q.qname_list), q.qname_str, q.qtype_str, q.qclass_str)
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if (r):
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print "Reply:"
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for i in range(0, r.rrset_count):
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rr = r.rrsets[i]
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rk = rr.rk
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print i,":",rk.dname_list, rk.dname_str, "flags: %04X" % rk.flags,
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print "type:",rk.type_str,"(%d)" % ntohs(rk.type), "class:",rk.rrset_class_str,"(%d)" % ntohs(rk.rrset_class)
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d = rr.entry.data
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for j in range(0,d.count+d.rrsig_count):
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print " ",j,":","TTL=",d.rr_ttl[j],
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if (j >= d.count): print "rrsig",
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print
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print dataHex(d.rr_data[j]," ")
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print "-"*100
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def init(id, cfg):
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log_info("pythonmod: init called, module id is %d port: %d script: %s" % (id, cfg.port, cfg.python_script))
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return True
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def deinit(id):
|
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log_info("pythonmod: deinit called, module id is %d" % id)
|
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return True
|
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|
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def inform_super(id, qstate, superqstate, qdata):
|
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return True
|
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|
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def operate(id, event, qstate, qdata):
|
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log_info("pythonmod: operate called, id: %d, event:%s" % (id, strmodulevent(event)))
|
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|
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if (event == MODULE_EVENT_NEW) or (event == MODULE_EVENT_PASS):
|
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#Pass on the new event to the iterator
|
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qstate.ext_state[id] = MODULE_WAIT_MODULE
|
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return True
|
||||
|
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if event == MODULE_EVENT_MODDONE:
|
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#Iterator finished, show response (if any)
|
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|
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if (qstate.return_msg):
|
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logDnsMsg(qstate)
|
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|
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qstate.ext_state[id] = MODULE_FINISHED
|
||||
return True
|
||||
|
||||
qstate.ext_state[id] = MODULE_ERROR
|
||||
return True
|
||||
|
||||
@@ -0,0 +1,73 @@
|
||||
'''
|
||||
resgen.py: This example shows how to generate authoritative response
|
||||
|
||||
Copyright (c) 2009, Zdenek Vasicek (vasicek AT fit.vutbr.cz)
|
||||
Marek Vavrusa (xvavru00 AT stud.fit.vutbr.cz)
|
||||
|
||||
This software is open source.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions
|
||||
are met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice,
|
||||
this list of conditions and the following disclaimer.
|
||||
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
|
||||
* Neither the name of the organization nor the names of its
|
||||
contributors may be used to endorse or promote products derived from this
|
||||
software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
|
||||
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
POSSIBILITY OF SUCH DAMAGE.
|
||||
'''
|
||||
def init(id, cfg): return True
|
||||
|
||||
def deinit(id): return True
|
||||
|
||||
def inform_super(id, qstate, superqstate, qdata): return True
|
||||
|
||||
def operate(id, event, qstate, qdata):
|
||||
if (event == MODULE_EVENT_NEW) or (event == MODULE_EVENT_PASS):
|
||||
if (qstate.qinfo.qname_str.endswith(".localdomain.")): #query name ends with localdomain
|
||||
#create instance of DNS message (packet) with given parameters
|
||||
msg = DNSMessage(qstate.qinfo.qname_str, RR_TYPE_A, RR_CLASS_IN, PKT_QR | PKT_RA | PKT_AA)
|
||||
#append RR
|
||||
if (qstate.qinfo.qtype == RR_TYPE_A) or (qstate.qinfo.qtype == RR_TYPE_ANY):
|
||||
msg.answer.append("%s 10 IN A 127.0.0.1" % qstate.qinfo.qname_str)
|
||||
#set qstate.return_msg
|
||||
if not msg.set_return_msg(qstate):
|
||||
qstate.ext_state[id] = MODULE_ERROR
|
||||
return True
|
||||
|
||||
#we don't need validation, result is valid
|
||||
qstate.return_msg.rep.security = 2
|
||||
|
||||
qstate.return_rcode = RCODE_NOERROR
|
||||
qstate.ext_state[id] = MODULE_FINISHED
|
||||
return True
|
||||
else:
|
||||
#pass the query to validator
|
||||
qstate.ext_state[id] = MODULE_WAIT_MODULE
|
||||
return True
|
||||
|
||||
if event == MODULE_EVENT_MODDONE:
|
||||
log_info("pythonmod: iterator module done")
|
||||
qstate.ext_state[id] = MODULE_FINISHED
|
||||
return True
|
||||
|
||||
log_err("pythonmod: bad event")
|
||||
qstate.ext_state[id] = MODULE_ERROR
|
||||
return True
|
||||
@@ -0,0 +1,88 @@
|
||||
'''
|
||||
resmod.py: This example shows how to modify the response from iterator
|
||||
|
||||
Copyright (c) 2009, Zdenek Vasicek (vasicek AT fit.vutbr.cz)
|
||||
Marek Vavrusa (xvavru00 AT stud.fit.vutbr.cz)
|
||||
|
||||
This software is open source.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions
|
||||
are met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice,
|
||||
this list of conditions and the following disclaimer.
|
||||
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
|
||||
* Neither the name of the organization nor the names of its
|
||||
contributors may be used to endorse or promote products derived from this
|
||||
software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
|
||||
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
POSSIBILITY OF SUCH DAMAGE.
|
||||
'''
|
||||
|
||||
def init(id, cfg): return True
|
||||
|
||||
def deinit(id): return True
|
||||
|
||||
def inform_super(id, qstate, superqstate, qdata): return True
|
||||
|
||||
def setTTL(qstate, ttl):
|
||||
"""Updates return_msg TTL and the TTL of all the RRs"""
|
||||
if qstate.return_msg:
|
||||
qstate.return_msg.rep.ttl = ttl
|
||||
if (qstate.return_msg.rep):
|
||||
for i in range(0,qstate.return_msg.rep.rrset_count):
|
||||
d = qstate.return_msg.rep.rrsets[i].entry.data
|
||||
for j in range(0,d.count+d.rrsig_count):
|
||||
d.rr_ttl[j] = ttl
|
||||
|
||||
def operate(id, event, qstate, qdata):
|
||||
if (event == MODULE_EVENT_NEW) or (event == MODULE_EVENT_PASS):
|
||||
#pass the query to validator
|
||||
qstate.ext_state[id] = MODULE_WAIT_MODULE
|
||||
return True
|
||||
|
||||
if event == MODULE_EVENT_MODDONE:
|
||||
log_info("pythonmod: iterator module done")
|
||||
|
||||
if not qstate.return_msg:
|
||||
qstate.ext_state[id] = MODULE_FINISHED
|
||||
return True
|
||||
|
||||
#modify the response
|
||||
|
||||
qdn = qstate.qinfo.qname_str
|
||||
if qdn.endswith(".nic.cz."):
|
||||
#invalidate response in cache added by iterator
|
||||
#invalidateQueryInCache(qstate, qstate.return_msg.qinfo)
|
||||
|
||||
#modify TTL to 10 secs and store response in cache
|
||||
#setTTL(qstate, 5)
|
||||
#if not storeQueryInCache(qstate, qstate.return_msg.qinfo, qstate.return_msg.rep, 0):
|
||||
# qstate.ext_state[id] = MODULE_ERROR
|
||||
# return False
|
||||
|
||||
#modify TTL of response, which will be send to a) validator and then b) client
|
||||
setTTL(qstate, 10)
|
||||
qstate.return_rcode = RCODE_NOERROR
|
||||
|
||||
qstate.ext_state[id] = MODULE_FINISHED
|
||||
return True
|
||||
|
||||
log_err("pythonmod: bad event")
|
||||
qstate.ext_state[id] = MODULE_ERROR
|
||||
return True
|
||||
Reference in New Issue
Block a user