[apple/network_cmds.git] / unbound / pythonmod / ubmodule-tst.py

# -*- coding: utf-8 -*-
'''
 ubmodule-tst.py:  

 Authors: Zdenek Vasicek (vasicek AT fit.vutbr.cz)
          Marek Vavrusa  (xvavru00 AT stud.fit.vutbr.cz)

 Copyright (c) 2008. All rights reserved.

 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.
 
 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):
    log_info("pythonmod: init called, module id is %d port: %d script: %s" % (id, cfg.port, cfg.python_script))
    return True

def deinit(id):
    log_info("pythonmod: deinit called, module id is %d" % id)
    return True

def inform_super(id, qstate, superqstate, qdata):
    return True

def setTTL(qstate, ttl):
    """Sets return_msg TTL and all the RRs TTL"""
    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 dataHex(data, prefix=""):
    res = ""
    for i in range(0, (len(data)+15)/16):
        res += "%s0x%02X | " % (prefix, i*16)
        d = map(lambda x:ord(x), data[i*16:i*16+17])
        for ch in d:
            res += "%02X " % ch
        for i in range(0,17-len(d)):
            res += "   "
        res += "| "
        for ch in d:
            if (ch < 32) or (ch > 127):
                res += ". "
            else:
                res += "%c " % ch
        res += "\n"
    return res

def printReturnMsg(qstate):
    print "Return MSG rep   :: flags: %04X, QDcount: %d, Security:%d, TTL=%d" % (qstate.return_msg.rep.flags, qstate.return_msg.rep.qdcount,qstate.return_msg.rep.security, qstate.return_msg.rep.ttl)
    print "           qinfo :: qname:",qstate.return_msg.qinfo.qname_list, qstate.return_msg.qinfo.qname_str, "type:",qstate.return_msg.qinfo.qtype_str, "class:",qstate.return_msg.qinfo.qclass_str
    if (qstate.return_msg.rep):
        print "RRSets:",qstate.return_msg.rep.rrset_count
        prevkey = None
        for i in range(0,qstate.return_msg.rep.rrset_count):
            r = qstate.return_msg.rep.rrsets[i]
            rk = r.rk
            print i,":",rk.dname_list, rk.dname_str, "flags: %04X" % rk.flags,
            print "type:",rk.type_str,"(%d)" % ntohs(rk.type), "class:",rk.rrset_class_str,"(%d)" % ntohs(rk.rrset_class)

            d = r.entry.data
            print "    RRDatas:",d.count+d.rrsig_count
            for j in range(0,d.count+d.rrsig_count):
                print "    ",j,":","TTL=",d.rr_ttl[j],"RR data:"
                print dataHex(d.rr_data[j],"         ")

def operate(id, event, qstate, qdata):
    log_info("pythonmod: operate called, id: %d, event:%s" % (id, strmodulevent(event)))
    #print "pythonmod: per query data", qdata

    print "Query:", ''.join(map(lambda x:chr(max(32,ord(x))),qstate.qinfo.qname)), qstate.qinfo.qname_list, 
    print "Type:",qstate.qinfo.qtype_str,"(%d)" % qstate.qinfo.qtype,
    print "Class:",qstate.qinfo.qclass_str,"(%d)" % qstate.qinfo.qclass
    print

    # TEST:
    #   > dig @127.0.0.1 www.seznam.cz A
    #   > dig @127.0.0.1 3.76.75.77.in-addr.arpa. PTR
    #   prvni dva dotazy vrati TTL 100
    #   > dig @127.0.0.1 www.seznam.cz A
    #   > dig @127.0.0.1 3.76.75.77.in-addr.arpa. PTR
    #   dalsi dva dotazy vrati TTL 10, ktere se bude s dalsimi dotazy snizovat, nez vyprsi a znovu se zaktivuje mesh
 
    if qstate.return_msg:
        printReturnMsg(qstate)

        #qdn = '.'.join(qstate.qinfo.qname_list)
        qdn = qstate.qinfo.qname_str

        #Pokud dotaz konci na nasledujici, pozmenime TTL zpravy, ktera se posle klientovi (return_msg) i zpravy v CACHE 
        if qdn.endswith(".seznam.cz.") or qdn.endswith('.in-addr.arpa.'):
            #pokud je v cache odpoved z iteratoru, pak ji zneplatnime, jinak se moduly nazavolaji do te doby, nez vyprsi TTL
            invalidateQueryInCache(qstate, qstate.return_msg.qinfo)

            if (qstate.return_msg.rep.authoritative):
                print "X"*300

            setTTL(qstate, 10) #do cache nastavime TTL na 10
            if not storeQueryInCache(qstate, qstate.return_msg.qinfo, qstate.return_msg.rep, 0):
                qstate.ext_state[id] = MODULE_ERROR
                return False

            setTTL(qstate, 100) #odpoved klientovi prijde s TTL 100
            qstate.return_rcode = RCODE_NOERROR

    if event == MODULE_EVENT_NEW:
        qstate.ext_state[id] = MODULE_WAIT_MODULE 
        return True

    if event == MODULE_EVENT_MODDONE:
        log_info("pythonmod: previous module done")
        qstate.ext_state[id] = MODULE_FINISHED 
        return True
      
    if event == MODULE_EVENT_PASS:
        log_info("pythonmod: event_pass")
        qstate.ext_state[id] = MODULE_WAIT_MODULE 
        return True

    log_err("pythonmod: BAD event")
    qstate.ext_state[id] = MODULE_ERROR
    return True

log_info("pythonmod: script loaded.")
Commit	Line	Data
89c4ed63 A	1	# -- coding: utf-8 --
	2	'''
	3	ubmodule-tst.py:
	4
	5	Authors: Zdenek Vasicek (vasicek AT fit.vutbr.cz)
	6	Marek Vavrusa (xvavru00 AT stud.fit.vutbr.cz)
	7
	8	Copyright (c) 2008. All rights reserved.
	9
	10	This software is open source.
	11
	12	Redistribution and use in source and binary forms, with or without
	13	modification, are permitted provided that the following conditions
	14	are met:
	15
	16	Redistributions of source code must retain the above copyright notice,
	17	this list of conditions and the following disclaimer.
	18
	19	Redistributions in binary form must reproduce the above copyright notice,
	20	this list of conditions and the following disclaimer in the documentation
	21	and/or other materials provided with the distribution.
	22
	23	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	24	"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
	25	TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	26	PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
	27	LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	28	CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	29	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	30	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	31	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	32	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	33	POSSIBILITY OF SUCH DAMAGE.
	34	'''
	35	def init(id, cfg):
	36	log_info("pythonmod: init called, module id is %d port: %d script: %s" % (id, cfg.port, cfg.python_script))
	37	return True
	38
	39	def deinit(id):
	40	log_info("pythonmod: deinit called, module id is %d" % id)
	41	return True
	42
	43	def inform_super(id, qstate, superqstate, qdata):
	44	return True
	45
	46	def setTTL(qstate, ttl):
	47	"""Sets return_msg TTL and all the RRs TTL"""
	48	if qstate.return_msg:
	49	qstate.return_msg.rep.ttl = ttl
	50	if (qstate.return_msg.rep):
	51	for i in range(0,qstate.return_msg.rep.rrset_count):
	52	d = qstate.return_msg.rep.rrsets[i].entry.data
	53	for j in range(0,d.count+d.rrsig_count):
	54	d.rr_ttl[j] = ttl
	55
	56	def dataHex(data, prefix=""):
	57	res = ""
	58	for i in range(0, (len(data)+15)/16):
	59	res += "%s0x%02X \| " % (prefix, i*16)
	60	d = map(lambda x:ord(x), data[i16:i16+17])
	61	for ch in d:
	62	res += "%02X " % ch
	63	for i in range(0,17-len(d)):
	64	res += " "
65	res += "\| "
66	for ch in d:
67	if (ch < 32) or (ch > 127):
68	res += ". "
69	else:
70	res += "%c " % ch
71	res += "\n"
72	return res
73
74	def printReturnMsg(qstate):
75	print "Return MSG rep :: flags: %04X, QDcount: %d, Security:%d, TTL=%d" % (qstate.return_msg.rep.flags, qstate.return_msg.rep.qdcount,qstate.return_msg.rep.security, qstate.return_msg.rep.ttl)
76	print " qinfo :: qname:",qstate.return_msg.qinfo.qname_list, qstate.return_msg.qinfo.qname_str, "type:",qstate.return_msg.qinfo.qtype_str, "class:",qstate.return_msg.qinfo.qclass_str
77	if (qstate.return_msg.rep):
78	print "RRSets:",qstate.return_msg.rep.rrset_count
79	prevkey = None
80	for i in range(0,qstate.return_msg.rep.rrset_count):
81	r = qstate.return_msg.rep.rrsets[i]
82	rk = r.rk
83	print i,":",rk.dname_list, rk.dname_str, "flags: %04X" % rk.flags,
84	print "type:",rk.type_str,"(%d)" % ntohs(rk.type), "class:",rk.rrset_class_str,"(%d)" % ntohs(rk.rrset_class)
85
86	d = r.entry.data
87	print " RRDatas:",d.count+d.rrsig_count
88	for j in range(0,d.count+d.rrsig_count):
89	print " ",j,":","TTL=",d.rr_ttl[j],"RR data:"
90	print dataHex(d.rr_data[j]," ")
91
92	def operate(id, event, qstate, qdata):
93	log_info("pythonmod: operate called, id: %d, event:%s" % (id, strmodulevent(event)))
94	#print "pythonmod: per query data", qdata
95
96	print "Query:", ''.join(map(lambda x:chr(max(32,ord(x))),qstate.qinfo.qname)), qstate.qinfo.qname_list,
97	print "Type:",qstate.qinfo.qtype_str,"(%d)" % qstate.qinfo.qtype,
98	print "Class:",qstate.qinfo.qclass_str,"(%d)" % qstate.qinfo.qclass
99	print
100
101	# TEST:
102	# > dig @127.0.0.1 www.seznam.cz A
103	# > dig @127.0.0.1 3.76.75.77.in-addr.arpa. PTR
104	# prvni dva dotazy vrati TTL 100
105	# > dig @127.0.0.1 www.seznam.cz A
106	# > dig @127.0.0.1 3.76.75.77.in-addr.arpa. PTR
107	# dalsi dva dotazy vrati TTL 10, ktere se bude s dalsimi dotazy snizovat, nez vyprsi a znovu se zaktivuje mesh
108
109	if qstate.return_msg:
110	printReturnMsg(qstate)
111
112	#qdn = '.'.join(qstate.qinfo.qname_list)
113	qdn = qstate.qinfo.qname_str
114
115	#Pokud dotaz konci na nasledujici, pozmenime TTL zpravy, ktera se posle klientovi (return_msg) i zpravy v CACHE
116	if qdn.endswith(".seznam.cz.") or qdn.endswith('.in-addr.arpa.'):
117	#pokud je v cache odpoved z iteratoru, pak ji zneplatnime, jinak se moduly nazavolaji do te doby, nez vyprsi TTL
118	invalidateQueryInCache(qstate, qstate.return_msg.qinfo)
119
120	if (qstate.return_msg.rep.authoritative):
121	print "X"*300
122
123	setTTL(qstate, 10) #do cache nastavime TTL na 10
124	if not storeQueryInCache(qstate, qstate.return_msg.qinfo, qstate.return_msg.rep, 0):
125	qstate.ext_state[id] = MODULE_ERROR
126	return False
127
128	setTTL(qstate, 100) #odpoved klientovi prijde s TTL 100
129	qstate.return_rcode = RCODE_NOERROR
130
131	if event == MODULE_EVENT_NEW:
132	qstate.ext_state[id] = MODULE_WAIT_MODULE
133	return True
134
135	if event == MODULE_EVENT_MODDONE:
136	log_info("pythonmod: previous module done")
137	qstate.ext_state[id] = MODULE_FINISHED
138	return True
139
140	if event == MODULE_EVENT_PASS:
141	log_info("pythonmod: event_pass")
142	qstate.ext_state[id] = MODULE_WAIT_MODULE
143	return True
144
145	log_err("pythonmod: BAD event")
146	qstate.ext_state[id] = MODULE_ERROR
147	return True
148
149	log_info("pythonmod: script loaded.")