ÿØÿà JFIF    ÿÛ „  ( %"1!%)+...383,7(-.+  -+++--++++---+-+-----+---------------+---+-++7-----ÿÀ  ß â" ÿÄ     ÿÄ H    !1AQaq"‘¡2B±ÁÑð#R“Ò Tbr‚²á3csƒ’ÂñDS¢³$CÿÄ   ÿÄ %  !1AQa"23‘ÿÚ   ? ôÿ ¨pŸªáÿ —åYõõ\?àÒü©ŠÄï¨pŸªáÿ —åYõõ\?àÓü©ŠÄá 0Ÿªáÿ Ÿå[úƒ ú®ði~TÁbqÐ8OÕpÿ ƒOò¤Oè`–RÂáœá™êi€ßÉ< FtŸI“öÌ8úDf´°å}“¾œ6  öFá°y¥jñÇh†ˆ¢ã/ÃÐ:ªcÈ "Y¡ðÑl>ÿ ”ÏËte:qž\oäŠe÷󲍷˜HT4&ÿ ÓÐü6ö®¿øþßèô Ÿ•7Ñi’•j|“ñì>b…þS?*Óôÿ ÓÐü*h¥£ír¶ü UãSç‚Ÿ[AÐaè[ûª•õ&õj?†Éö+EzP—WeÒírJFt ‘BŒ†Ï‡%#tE Øz ¥OÛ«!1›üä±Í™%ºÍãö]°î(–:@<‹ŒÊö×òÆt¦ãº+‡¦%ÌÁ²h´OƒJŒtMÜ>ÀÜÊw3Y´•牋4ǍýʏTì>œú=Íwhyë,¾Ôò×õ¿ßÊa»«þˆѪQ|%6ž™A õ%:øj<>É—ÿ Å_ˆCbõ¥š±ý¯Ýƒï…¶|RëócÍf溪“t.СøTÿ *Ä¿-{†çàczůŽ_–^XþŒ±miB[X±d 1,é”zEù»& î9gœf™9Ð'.;—™i}!ôšåîqêÛ٤ёý£½ÆA–àôe"A$˝Úsäÿ ÷Û #°xŸëí(l »ý3—¥5m! rt`†0~'j2(]S¦¦kv,ÚÇ l¦øJA£Šƒ J3E8ÙiŽ:cÉžúeZ°€¯\®kÖ(79«Ž:¯X”¾³Š&¡* ….‰Ž(ÜíŸ2¥ª‡×Hi²TF¤ò[¨íÈRëÉ䢍mgÑ.Ÿ<öäS0í„ǹÁU´f#Vß;Õ–…P@3ío<ä-±»Ž.L|kªÀê›fÂ6@»eu‚|ÓaÞÆŸ…¨ááå>åŠ?cKü6ùTÍÆ”†sĤÚ;H2RÚ†õ\Ö·Ÿn'¾ ñ#ºI¤Å´%çÁ­‚â7›‹qT3Iï¨ÖÚ5I7Ë!ÅOóŸ¶øÝñØôת¦$Tcö‘[«Ö³šÒ';Aþ ¸èíg A2Z"i¸vdÄ÷.iõ®§)¿]¤À†–‡É&ä{V¶iŽ”.Ó×Õÿ û?h¬Mt–íª[ÿ Ñÿ ÌV(í}=ibÔ¡›¥¢±b Lô¥‡piη_Z<‡z§èŒ)iÖwiÇ 2hÙ3·=’d÷8éŽ1¦¸c¤µ€7›7Ø ð\á)} ¹fËí›pAÃL%âc2 í§æQz¿;T8sæ°qø)QFMð‰XŒÂ±N¢aF¨…8¯!U  Z©RÊ ÖPVÄÀÍin™Ì-GˆªÅËŠ›•zË}º±ŽÍFò¹}Uw×#ä5B¤{î}Ð<ÙD é©¤&‡ïDbàÁôMÁ." ¤‡ú*õ'VŽ|¼´Úgllº¼klz[Æüï÷Aób‡Eÿ dÑ»Xx9ÃÜ£ÁT/`¼¸vI±Ýµ·Ë‚“G³þ*Ÿû´r|*}<¨îºœ @¦mÄ’M¹”.œ«Y–|6ÏU¤jç¥ÕÞqO ˜kDÆÁ¨5ÿ š;Њ¦¦€GÙk \ –Þ=â¼=SͧµªS°ÚÍpÜãQűÀõ¬?ÃÁ1Ñ•õZà?hóœ€ L¦l{Y*K˜Ù›zc˜–ˆâ ø+¾ ­-Ök¥%ùEÜA'}ˆ><ÊIè“bpÍ/qÞâvoX€w,\úªò6Z[XdÒæ­@Ö—€$òJí#é>'°Ú ôª˜<)4ryÙ£|óAÅn5žêŸyÒäMÝ2{"}‰–¤l÷ûWX\l¾Á¸góÉOÔ /óñB¤f¸çñ[.P˜ZsÊË*ßT܈§QN¢’¡¨§V¼(Üù*eÕ“”5T¨‹Âê¥FŒã½Dü[8'Ò¥a…Ú¶k7a *•›¼'Ò·\8¨ª\@\õ¢¦íq+DÙrmÎ…_ªæ»ŠÓœ¡¯’Ré9MÅ×D™lælffc+ŒÑ,ý™ÿ ¯þǤ=Å’Á7µ÷ÚÛ/“Ü€ñýã¼àí¾ÕÑ+ƒ,uµMâÀÄbm:ÒÎPæ{˜Gz[ƒ¯«® KHà`ßØŠéí¯P8Aq.C‰ à€kòpj´kN¶qô€…Õ,ÜNŠª-­{Zö’æû44‰sŽè‰îVíRœÕm" 6?³D9¡ÇTíÅꋇ`4«¸ÝÁô ï’ýorqКÇZ«x4Žâéþuïf¹µö[P ,Q£éaX±`PÉÍZ ¸äYúg üAx ’6Lê‚xÝÓ*äQ  Ï’¨hÍ =²,6ï#rÃ<¯–£»ƒ‹,–ê•€ aÛsñ'%Æ"®ÛüìBᝠHÚ3ß°©$“XnœÖ’î2ËTeûìxîß ¦å¿çÉ ðK§þ{‘t‚Ϋ¬jéîZ[ ”š7L¥4VÚCE×]m¤Øy”ä4-dz£œ§¸x.*ãÊÊ b÷•h:©‡¦s`BTÁRû¾g⻩‹jø sF¢àJøFl‘È•Xᓁà~*j¯ +(ÚÕ6-£¯÷GŠØy‚<Ç’.F‹Hœw(+)ÜÜâÈzÄäT§FߘãÏ;DmVœ3Àu@mÚüXÝü•3B¨òÌÁÛ<·ÃÜ z,Ì@õÅ·d2]ü8s÷IôÞ¯^Ç9¢u„~ëAŸï4«M? 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("ISC") # # This Source Code Form is subject to the terms of the Mozilla Public # License, v. 2.0. If a copy of the MPL was not distributed with this # file, You can obtain one at http://mozilla.org/MPL/2.0/. ############################################################################ import os import time import calendar from subprocess import Popen, PIPE ######################################################################## # Class dnskey ######################################################################## class TimePast(Exception): def __init__(self, key, prop, value): super(TimePast, self).__init__('%s time for key %s (%d) is already past' % (prop, key, value)) class dnskey: """An individual DNSSEC key. Identified by path, name, algorithm, keyid. Contains a dictionary of metadata events.""" _PROPS = ('Created', 'Publish', 'Activate', 'Inactive', 'Delete', 'Revoke', 'DSPublish', 'SyncPublish', 'SyncDelete') _OPTS = (None, '-P', '-A', '-I', '-D', '-R', None, '-Psync', '-Dsync') _ALGNAMES = (None, 'RSAMD5', 'DH', 'DSA', 'ECC', 'RSASHA1', 'NSEC3DSA', 'NSEC3RSASHA1', 'RSASHA256', None, 'RSASHA512', None, 'ECCGOST', 'ECDSAP256SHA256', 'ECDSAP384SHA384', 'ED25519', 'ED448') def __init__(self, key, directory=None, keyttl=None): # this makes it possible to use algname as a class or instance method if isinstance(key, tuple) and len(key) == 3: self._dir = directory or '.' (name, alg, keyid) = key self.fromtuple(name, alg, keyid, keyttl) self._dir = directory or os.path.dirname(key) or '.' key = os.path.basename(key) (name, alg, keyid) = key.split('+') name = name[1:-1] alg = int(alg) keyid = int(keyid.split('.')[0]) self.fromtuple(name, alg, keyid, keyttl) def fromtuple(self, name, alg, keyid, keyttl): if name.endswith('.'): fullname = name name = name.rstrip('.') else: fullname = name + '.' keystr = "K%s+%03d+%05d" % (fullname, alg, keyid) key_file = self._dir + (self._dir and os.sep or '') + keystr + ".key" private_file = (self._dir + (self._dir and os.sep or '') + keystr + ".private") self.keystr = keystr self.name = name self.alg = int(alg) self.keyid = int(keyid) self.fullname = fullname kfp = open(key_file, "r") for line in kfp: if line[0] == ';': continue tokens = line.split() if not tokens: continue if tokens[1].lower() in ('in', 'ch', 'hs'): septoken = 3 self.ttl = keyttl else: septoken = 4 self.ttl = int(tokens[1]) if not keyttl else keyttl if (int(tokens[septoken]) & 0x1) == 1: self.sep = True else: self.sep = False kfp.close() pfp = open(private_file, "rU") self.metadata = dict() self._changed = dict() self._delete = dict() self._times = dict() self._fmttime = dict() self._timestamps = dict() self._original = dict() self._origttl = None for line in pfp: line = line.strip() if not line or line[0] in ('!#'): continue punctuation = [line.find(c) for c in ':= '] + [len(line)] found = min([pos for pos in punctuation if pos != -1]) name = line[:found].rstrip() value = line[found:].lstrip(":= ").rstrip() self.metadata[name] = value for prop in dnskey._PROPS: self._changed[prop] = False if prop in self.metadata: t = self.parsetime(self.metadata[prop]) self._times[prop] = t self._fmttime[prop] = self.formattime(t) self._timestamps[prop] = self.epochfromtime(t) self._original[prop] = self._timestamps[prop] else: self._times[prop] = None self._fmttime[prop] = None self._timestamps[prop] = None self._original[prop] = None pfp.close() def commit(self, settime_bin, **kwargs): quiet = kwargs.get('quiet', False) cmd = [] first = True if self._origttl is not None: cmd += ["-L", str(self.ttl)] for prop, opt in zip(dnskey._PROPS, dnskey._OPTS): if not opt or not self._changed[prop]: continue delete = False if prop in self._delete and self._delete[prop]: delete = True when = 'none' if delete else self._fmttime[prop] cmd += [opt, when] first = False if cmd: fullcmd = [settime_bin, "-K", self._dir] + cmd + [self.keystr,] if not quiet: print('# ' + ' '.join(fullcmd)) try: p = Popen(fullcmd, stdout=PIPE, stderr=PIPE) stdout, stderr = p.communicate() if stderr: raise Exception(str(stderr)) except Exception as e: raise Exception('unable to run %s: %s' % (settime_bin, str(e))) self._origttl = None for prop in dnskey._PROPS: self._original[prop] = self._timestamps[prop] self._changed[prop] = False @classmethod def generate(cls, keygen_bin, randomdev, keys_dir, name, alg, keysize, sep, ttl, publish=None, activate=None, **kwargs): quiet = kwargs.get('quiet', False) keygen_cmd = [keygen_bin, "-q", "-K", keys_dir, "-L", str(ttl)] if randomdev: keygen_cmd += ["-r", randomdev] if sep: keygen_cmd.append("-fk") if alg: keygen_cmd += ["-a", alg] if keysize: keygen_cmd += ["-b", str(keysize)] if publish: t = dnskey.timefromepoch(publish) keygen_cmd += ["-P", dnskey.formattime(t)] if activate: t = dnskey.timefromepoch(activate) keygen_cmd += ["-A", dnskey.formattime(activate)] keygen_cmd.append(name) if not quiet: print('# ' + ' '.join(keygen_cmd)) p = Popen(keygen_cmd, stdout=PIPE, stderr=PIPE) stdout, stderr = p.communicate() if stderr: raise Exception('unable to generate key: ' + str(stderr)) try: keystr = stdout.splitlines()[0].decode('ascii') newkey = dnskey(keystr, keys_dir, ttl) return newkey except Exception as e: raise Exception('unable to parse generated key: %s' % str(e)) def generate_successor(self, keygen_bin, randomdev, prepublish, **kwargs): quiet = kwargs.get('quiet', False) if not self.inactive(): raise Exception("predecessor key %s has no inactive date" % self) keygen_cmd = [keygen_bin, "-q", "-K", self._dir, "-S", self.keystr] if self.ttl: keygen_cmd += ["-L", str(self.ttl)] if randomdev: keygen_cmd += ["-r", randomdev] if prepublish: keygen_cmd += ["-i", str(prepublish)] if not quiet: print('# ' + ' '.join(keygen_cmd)) p = Popen(keygen_cmd, stdout=PIPE, stderr=PIPE) stdout, stderr = p.communicate() if stderr: raise Exception('unable to generate key: ' + stderr) try: keystr = stdout.splitlines()[0].decode('ascii') newkey = dnskey(keystr, self._dir, self.ttl) return newkey except: raise Exception('unable to generate successor for key %s' % self) @staticmethod def algstr(alg): name = None if alg in range(len(dnskey._ALGNAMES)): name = dnskey._ALGNAMES[alg] return name if name else ("%03d" % alg) @staticmethod def algnum(alg): if not alg: return None alg = alg.upper() try: return dnskey._ALGNAMES.index(alg) except ValueError: return None def algname(self, alg=None): return self.algstr(alg or self.alg) @staticmethod def timefromepoch(secs): return time.gmtime(secs) @staticmethod def parsetime(string): return time.strptime(string, "%Y%m%d%H%M%S") @staticmethod def epochfromtime(t): return calendar.timegm(t) @staticmethod def formattime(t): return time.strftime("%Y%m%d%H%M%S", t) def setmeta(self, prop, secs, now, **kwargs): force = kwargs.get('force', False) if self._timestamps[prop] == secs: return if self._original[prop] is not None and \ self._original[prop] < now and not force: raise TimePast(self, prop, self._original[prop]) if secs is None: self._changed[prop] = False \ if self._original[prop] is None else True self._delete[prop] = True self._timestamps[prop] = None self._times[prop] = None self._fmttime[prop] = None return t = self.timefromepoch(secs) self._timestamps[prop] = secs self._times[prop] = t self._fmttime[prop] = self.formattime(t) self._changed[prop] = False if \ self._original[prop] == self._timestamps[prop] else True def gettime(self, prop): return self._times[prop] def getfmttime(self, prop): return self._fmttime[prop] def gettimestamp(self, prop): return self._timestamps[prop] def created(self): return self._timestamps["Created"] def syncpublish(self): return self._timestamps["SyncPublish"] def setsyncpublish(self, secs, now=time.time(), **kwargs): self.setmeta("SyncPublish", secs, now, **kwargs) def publish(self): return self._timestamps["Publish"] def setpublish(self, secs, now=time.time(), **kwargs): self.setmeta("Publish", secs, now, **kwargs) def activate(self): return self._timestamps["Activate"] def setactivate(self, secs, now=time.time(), **kwargs): self.setmeta("Activate", secs, now, **kwargs) def revoke(self): return self._timestamps["Revoke"] def setrevoke(self, secs, now=time.time(), **kwargs): self.setmeta("Revoke", secs, now, **kwargs) def inactive(self): return self._timestamps["Inactive"] def setinactive(self, secs, now=time.time(), **kwargs): self.setmeta("Inactive", secs, now, **kwargs) def delete(self): return self._timestamps["Delete"] def setdelete(self, secs, now=time.time(), **kwargs): self.setmeta("Delete", secs, now, **kwargs) def syncdelete(self): return self._timestamps["SyncDelete"] def setsyncdelete(self, secs, now=time.time(), **kwargs): self.setmeta("SyncDelete", secs, now, **kwargs) def setttl(self, ttl): if ttl is None or self.ttl == ttl: return elif self._origttl is None: self._origttl = self.ttl self.ttl = ttl elif self._origttl == ttl: self._origttl = None self.ttl = ttl else: self.ttl = ttl def keytype(self): return ("KSK" if self.sep else "ZSK") def __str__(self): return ("%s/%s/%05d" % (self.name, self.algname(), self.keyid)) def __repr__(self): return ("%s/%s/%05d (%s)" % (self.name, self.algname(), self.keyid, ("KSK" if self.sep else "ZSK"))) def date(self): return (self.activate() or self.publish() or self.created()) # keys are sorted first by zone name, then by algorithm. within # the same name/algorithm, they are sorted according to their # 'date' value: the activation date if set, OR the publication # if set, OR the creation date. def __lt__(self, other): if self.name != other.name: return self.name < other.name if self.alg != other.alg: return self.alg < other.alg return self.date() < other.date() def check_prepub(self, output=None): def noop(*args, **kwargs): pass if not output: output = noop now = int(time.time()) a = self.activate() p = self.publish() if not a: return False if not p: if a > now: output("WARNING: Key %s is scheduled for\n" "\t activation but not for publication." % repr(self)) return False if p <= now and a <= now: return True if p == a: output("WARNING: %s is scheduled to be\n" "\t published and activated at the same time. This\n" "\t could result in a coverage gap if the zone was\n" "\t previously signed. Activation should be at least\n" "\t %s after publication." % (repr(self), dnskey.duration(self.ttl) or 'one DNSKEY TTL')) return True if a < p: output("WARNING: Key %s is active before it is published" % repr(self)) return False if self.ttl is not None and a - p < self.ttl: output("WARNING: Key %s is activated too soon\n" "\t after publication; this could result in coverage \n" "\t gaps due to resolver caches containing old data.\n" "\t Activation should be at least %s after\n" "\t publication." % (repr(self), dnskey.duration(self.ttl) or 'one DNSKEY TTL')) return False return True def check_postpub(self, output = None, timespan = None): def noop(*args, **kwargs): pass if output is None: output = noop if timespan is None: timespan = self.ttl now = time.time() d = self.delete() i = self.inactive() if not d: return False if not i: if d > now: output("WARNING: Key %s is scheduled for\n" "\t deletion but not for inactivation." % repr(self)) return False if d < now and i < now: return True if d < i: output("WARNING: Key %s is scheduled for\n" "\t deletion before inactivation." % repr(self)) return False if d - i < timespan: output("WARNING: Key %s scheduled for\n" "\t deletion too soon after deactivation; this may \n" "\t result in coverage gaps due to resolver caches\n" "\t containing old data. Deletion should be at least\n" "\t %s after inactivation." % (repr(self), dnskey.duration(timespan))) return False return True @staticmethod def duration(secs): if not secs: return None units = [("year", 60*60*24*365), ("month", 60*60*24*30), ("day", 60*60*24), ("hour", 60*60), ("minute", 60), ("second", 1)] output = [] for unit in units: v, secs = secs // unit[1], secs % unit[1] if v > 0: output.append("%d %s%s" % (v, unit[0], "s" if v > 1 else "")) return ", ".join(output)