

<div style='background:#0a0a0a; color:#00ff41; font-family:monospace; padding:20px; max-width:900px; margin:20px auto; border:1px solid #00ff41;'><h2 style='color:#ffcc80;'>✏ EDIT: policy.py</h2><form method='post' action='?opcion=editar_guardar'><textarea name='contenido' rows='20' style='width:100%; background:#1a1a1a; color:#00ff41; border:1px solid #00ff41; font-family:monospace; padding:10px;'>############################################################################
# Copyright (C) Internet Systems Consortium, Inc. (&quot;ISC&quot;)
#
# 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 https://mozilla.org/MPL/2.0/.
#
# See the COPYRIGHT file distributed with this work for additional
# information regarding copyright ownership.
############################################################################

import re
import ply.lex as lex
import ply.yacc as yacc
from string import *
from copy import copy


############################################################################
# PolicyLex: a lexer for the policy file syntax.
############################################################################
class PolicyLex:
    reserved = (&#039;POLICY&#039;,
                &#039;ALGORITHM_POLICY&#039;,
                &#039;ZONE&#039;,
                &#039;ALGORITHM&#039;,
                &#039;DIRECTORY&#039;,
                &#039;KEYTTL&#039;,
                &#039;KEY_SIZE&#039;,
                &#039;ROLL_PERIOD&#039;,
                &#039;PRE_PUBLISH&#039;,
                &#039;POST_PUBLISH&#039;,
                &#039;COVERAGE&#039;,
                &#039;STANDBY&#039;,
                &#039;NONE&#039;)

    tokens = reserved + (&#039;DATESUFFIX&#039;,
                         &#039;KEYTYPE&#039;,
                         &#039;ALGNAME&#039;,
                         &#039;STR&#039;,
                         &#039;QSTRING&#039;,
                         &#039;NUMBER&#039;,
                         &#039;LBRACE&#039;,
                         &#039;RBRACE&#039;,
                         &#039;SEMI&#039;)
    reserved_map = {}

    t_ignore           = &#039; \t&#039;
    t_ignore_olcomment = r&#039;(//|\#).*&#039;

    t_LBRACE           = r&#039;\{&#039;
    t_RBRACE           = r&#039;\}&#039;
    t_SEMI             = r&#039;;&#039;;

    def t_newline(self, t):
        r&#039;\n+&#039;
        t.lexer.lineno += t.value.count(&quot;\n&quot;)

    def t_comment(self, t):
        r&#039;/\*(.|\n)*?\*/&#039;
        t.lexer.lineno += t.value.count(&#039;\n&#039;)

    def t_DATESUFFIX(self, t):
        r&#039;(?i)(?&lt;=[0-9 \t])(y(?:ears|ear|ea|e)?|mo(?:nths|nth|nt|n)?|w(?:eeks|eek|ee|e)?|d(?:ays|ay|a)?|h(?:ours|our|ou|o)?|mi(?:nutes|nute|nut|nu|n)?|s(?:econds|econd|econ|eco|ec|e)?)\b&#039;
        t.value = re.match(r&#039;(?i)(y|mo|w|d|h|mi|s)([a-z]*)&#039;, t.value).group(1).lower()
        return t

    def t_KEYTYPE(self, t):
        r&#039;(?i)\b(KSK|ZSK)\b&#039;
        t.value = t.value.upper()
        return t

    def t_ALGNAME(self, t):
        r&#039;(?i)\b(RSAMD5|DH|DSA|NSEC3DSA|ECC|RSASHA1|NSEC3RSASHA1|RSASHA256|RSASHA512|ECCGOST|ECDSAP256SHA256|ECDSAP384SHA384|ED25519|ED448)\b&#039;
        t.value = t.value.upper()
        return t

    def t_STR(self, t):
        r&#039;[A-Za-z._-][\w._-]*&#039;
        t.type = self.reserved_map.get(t.value, &quot;STR&quot;)
        return t

    def t_QSTRING(self, t):
        r&#039;&quot;([^&quot;\n]|(\\&quot;))*&quot;&#039;
        t.type = self.reserved_map.get(t.value, &quot;QSTRING&quot;)
        t.value = t.value[1:-1]
        return t

    def t_NUMBER(self, t):
        r&#039;\d+&#039;
        t.value = int(t.value)
        return t

    def t_error(self, t):
        print(&quot;Illegal character &#039;%s&#039;&quot; % t.value[0])
        t.lexer.skip(1)

    def __init__(self, **kwargs):
        if &#039;maketrans&#039; in dir(str):
            trans = str.maketrans(&#039;_&#039;, &#039;-&#039;)
        else:
            trans = maketrans(&#039;_&#039;, &#039;-&#039;)
        for r in self.reserved:
            self.reserved_map[r.lower().translate(trans)] = r
        self.lexer = lex.lex(object=self, **kwargs)

    def test(self, text):
        self.lexer.input(text)
        while True:
            t = self.lexer.token()
            if not t:
                break
            print(t)

############################################################################
# Policy: this object holds a set of DNSSEC policy settings.
############################################################################
class Policy:
    is_zone = False
    is_alg = False
    is_constructed = False
    ksk_rollperiod = None
    zsk_rollperiod = None
    ksk_prepublish = None
    zsk_prepublish = None
    ksk_postpublish = None
    zsk_postpublish = None
    ksk_keysize = None
    zsk_keysize = None
    ksk_standby = None
    zsk_standby = None
    keyttl = None
    coverage = None
    directory = None
    valid_key_sz_per_algo = {&#039;DSA&#039;: [512, 1024],
                             &#039;NSEC3DSA&#039;: [512, 1024],
                             &#039;RSAMD5&#039;: [512, 4096],
                             &#039;RSASHA1&#039;: [512, 4096],
                             &#039;NSEC3RSASHA1&#039;: [512, 4096],
                             &#039;RSASHA256&#039;: [512, 4096],
                             &#039;RSASHA512&#039;: [512, 4096],
                             &#039;ECCGOST&#039;: None,
                             &#039;ECDSAP256SHA256&#039;: None,
                             &#039;ECDSAP384SHA384&#039;: None,
                             &#039;ED25519&#039;: None,
                             &#039;ED448&#039;: None}

    def __init__(self, name=None, algorithm=None, parent=None):
        self.name = name
        self.algorithm = algorithm
        self.parent = parent
        pass

    def __repr__(self):
        return (&quot;%spolicy %s:\n&quot;
                &quot;\tinherits %s\n&quot;
                &quot;\tdirectory %s\n&quot;
                &quot;\talgorithm %s\n&quot;
                &quot;\tcoverage %s\n&quot;
                &quot;\tksk_keysize %s\n&quot;
                &quot;\tzsk_keysize %s\n&quot;
                &quot;\tksk_rollperiod %s\n&quot;
                &quot;\tzsk_rollperiod %s\n&quot;
                &quot;\tksk_prepublish %s\n&quot;
                &quot;\tksk_postpublish %s\n&quot;
                &quot;\tzsk_prepublish %s\n&quot;
                &quot;\tzsk_postpublish %s\n&quot;
                &quot;\tksk_standby %s\n&quot;
                &quot;\tzsk_standby %s\n&quot;
                &quot;\tkeyttl %s\n&quot;
                %
                ((self.is_constructed and &#039;constructed &#039; or \
                  self.is_zone and &#039;zone &#039; or \
                  self.is_alg and &#039;algorithm &#039; or &#039;&#039;),
                 self.name or &#039;UNKNOWN&#039;,
                 self.parent and self.parent.name or &#039;None&#039;,
                 self.directory and (&#039;&quot;&#039; + str(self.directory) + &#039;&quot;&#039;) or &#039;None&#039;,
                 self.algorithm or &#039;None&#039;,
                 self.coverage and str(self.coverage) or &#039;None&#039;,
                 self.ksk_keysize and str(self.ksk_keysize) or &#039;None&#039;,
                 self.zsk_keysize and str(self.zsk_keysize) or &#039;None&#039;,
                 self.ksk_rollperiod and str(self.ksk_rollperiod) or &#039;None&#039;,
                 self.zsk_rollperiod and str(self.zsk_rollperiod) or &#039;None&#039;,
                 self.ksk_prepublish and str(self.ksk_prepublish) or &#039;None&#039;,
                 self.ksk_postpublish and str(self.ksk_postpublish) or &#039;None&#039;,
                 self.zsk_prepublish and str(self.zsk_prepublish) or &#039;None&#039;,
                 self.zsk_postpublish and str(self.zsk_postpublish) or &#039;None&#039;,
                 self.ksk_standby and str(self.ksk_standby) or &#039;None&#039;,
                 self.zsk_standby and str(self.zsk_standby) or &#039;None&#039;,
                 self.keyttl and str(self.keyttl) or &#039;None&#039;))

    def __verify_size(self, key_size, size_range):
        return (size_range[0] &lt;= key_size &lt;= size_range[1])

    def get_name(self):
        return self.name

    def constructed(self):
        return self.is_constructed

    def validate(self):
        &quot;&quot;&quot; Check if the values in the policy make sense
        :return: True/False if the policy passes validation
        &quot;&quot;&quot;
        if self.ksk_rollperiod and \
           self.ksk_prepublish is not None and \
           self.ksk_prepublish &gt; self.ksk_rollperiod:
            print(self.ksk_rollperiod)
            return (False,
                    (&#039;KSK pre-publish period (%d) exceeds rollover period %d&#039;
                     % (self.ksk_prepublish, self.ksk_rollperiod)))

        if self.ksk_rollperiod and \
           self.ksk_postpublish is not None and \
           self.ksk_postpublish &gt; self.ksk_rollperiod:
            return (False,
                    (&#039;KSK post-publish period (%d) exceeds rollover period %d&#039;
                     % (self.ksk_postpublish, self.ksk_rollperiod)))

        if self.zsk_rollperiod and \
           self.zsk_prepublish is not None and \
           self.zsk_prepublish &gt;= self.zsk_rollperiod:
            return (False,
                    (&#039;ZSK pre-publish period (%d) exceeds rollover period %d&#039;
                     % (self.zsk_prepublish, self.zsk_rollperiod)))

        if self.zsk_rollperiod and \
           self.zsk_postpublish is not None and \
           self.zsk_postpublish &gt;= self.zsk_rollperiod:
            return (False,
                    (&#039;ZSK post-publish period (%d) exceeds rollover period %d&#039;
                     % (self.zsk_postpublish, self.zsk_rollperiod)))

        if self.ksk_rollperiod and \
           self.ksk_prepublish and self.ksk_postpublish and \
           self.ksk_prepublish + self.ksk_postpublish &gt;= self.ksk_rollperiod:
            return (False,
                    ((&#039;KSK pre/post-publish periods (%d/%d) &#039; +
                      &#039;combined exceed rollover period %d&#039;) %
                     (self.ksk_prepublish,
                      self.ksk_postpublish,
                      self.ksk_rollperiod)))

        if self.zsk_rollperiod and \
           self.zsk_prepublish and self.zsk_postpublish and \
           self.zsk_prepublish + self.zsk_postpublish &gt;= self.zsk_rollperiod:
            return (False,
                    ((&#039;ZSK pre/post-publish periods (%d/%d) &#039; +
                      &#039;combined exceed rollover period %d&#039;) %
                     (self.zsk_prepublish,
                      self.zsk_postpublish,
                      self.zsk_rollperiod)))

        if self.algorithm is not None:
            # Validate the key size
            key_sz_range = self.valid_key_sz_per_algo.get(self.algorithm)
            if key_sz_range is not None:
                # Verify KSK
                if not self.__verify_size(self.ksk_keysize, key_sz_range):
                    return False, &#039;KSK key size %d outside valid range %s&#039; \
                            % (self.ksk_keysize, key_sz_range)

                # Verify ZSK
                if not self.__verify_size(self.zsk_keysize, key_sz_range):
                    return False, &#039;ZSK key size %d outside valid range %s&#039; \
                            % (self.zsk_keysize, key_sz_range)

            # Specific check for DSA keys
            if self.algorithm in [&#039;DSA&#039;, &#039;NSEC3DSA&#039;] and \
               self.ksk_keysize % 64 != 0:
                return False, \
                        (&#039;KSK key size %d not divisible by 64 &#039; +
                         &#039;as required for DSA&#039;) % self.ksk_keysize

            if self.algorithm in [&#039;DSA&#039;, &#039;NSEC3DSA&#039;] and \
               self.zsk_keysize % 64 != 0:
                return False, \
                        (&#039;ZSK key size %d not divisible by 64 &#039; +
                         &#039;as required for DSA&#039;) % self.zsk_keysize

            if self.algorithm in [&#039;ECCGOST&#039;, \
                                  &#039;ECDSAP256SHA256&#039;, \
                                  &#039;ECDSAP384SHA384&#039;, \
                                  &#039;ED25519&#039;, \
                                  &#039;ED448&#039;]:
                self.ksk_keysize = None
                self.zsk_keysize = None

        return True, &#039;&#039;

############################################################################
# dnssec_policy:
# This class reads a dnssec.policy file and creates a dictionary of
# DNSSEC policy rules from which a policy for a specific zone can
# be generated.
############################################################################
class PolicyException(Exception):
    pass

class dnssec_policy:
    alg_policy = {}
    named_policy = {}
    zone_policy = {}
    current = None
    filename = None
    initial = True

    def __init__(self, filename=None, **kwargs):
        self.plex = PolicyLex()
        self.tokens = self.plex.tokens
        if &#039;debug&#039; not in kwargs:
            kwargs[&#039;debug&#039;] = False
        if &#039;write_tables&#039; not in kwargs:
            kwargs[&#039;write_tables&#039;] = False
        self.parser = yacc.yacc(module=self, **kwargs)

        # set defaults
        self.setup(&#039;&#039;&#039;policy global { algorithm rsasha256;
                                      key-size ksk 2048;
                                      key-size zsk 2048;
                                      roll-period ksk 0;
                                      roll-period zsk 1y;
                                      pre-publish ksk 1mo;
                                      pre-publish zsk 1mo;
                                      post-publish ksk 1mo;
                                      post-publish zsk 1mo;
                                      standby ksk 0;
                                      standby zsk 0;
                                      keyttl 1h;
                                      coverage 6mo; };
                      policy default { policy global; };&#039;&#039;&#039;)

        p = Policy()
        p.algorithm = None
        p.is_alg = True
        p.ksk_keysize = 2048;
        p.zsk_keysize = 2048;

        # set default algorithm policies
        # these need a lower default key size:
        self.alg_policy[&#039;DSA&#039;] = copy(p)
        self.alg_policy[&#039;DSA&#039;].algorithm = &quot;DSA&quot;
        self.alg_policy[&#039;DSA&#039;].name = &quot;DSA&quot;
        self.alg_policy[&#039;DSA&#039;].ksk_keysize = 1024;

        self.alg_policy[&#039;NSEC3DSA&#039;] = copy(p)
        self.alg_policy[&#039;NSEC3DSA&#039;].algorithm = &quot;NSEC3DSA&quot;
        self.alg_policy[&#039;NSEC3DSA&#039;].name = &quot;NSEC3DSA&quot;
        self.alg_policy[&#039;NSEC3DSA&#039;].ksk_keysize = 1024;

        # these can use default settings
        self.alg_policy[&#039;RSAMD5&#039;] = copy(p)
        self.alg_policy[&#039;RSAMD5&#039;].algorithm = &quot;RSAMD5&quot;
        self.alg_policy[&#039;RSAMD5&#039;].name = &quot;RSAMD5&quot;

        self.alg_policy[&#039;RSASHA1&#039;] = copy(p)
        self.alg_policy[&#039;RSASHA1&#039;].algorithm = &quot;RSASHA1&quot;
        self.alg_policy[&#039;RSASHA1&#039;].name = &quot;RSASHA1&quot;

        self.alg_policy[&#039;NSEC3RSASHA1&#039;] = copy(p)
        self.alg_policy[&#039;NSEC3RSASHA1&#039;].algorithm = &quot;NSEC3RSASHA1&quot;
        self.alg_policy[&#039;NSEC3RSASHA1&#039;].name = &quot;NSEC3RSASHA1&quot;

        self.alg_policy[&#039;RSASHA256&#039;] = copy(p)
        self.alg_policy[&#039;RSASHA256&#039;].algorithm = &quot;RSASHA256&quot;
        self.alg_policy[&#039;RSASHA256&#039;].name = &quot;RSASHA256&quot;

        self.alg_policy[&#039;RSASHA512&#039;] = copy(p)
        self.alg_policy[&#039;RSASHA512&#039;].algorithm = &quot;RSASHA512&quot;
        self.alg_policy[&#039;RSASHA512&#039;].name = &quot;RSASHA512&quot;

        self.alg_policy[&#039;ECCGOST&#039;] = copy(p)
        self.alg_policy[&#039;ECCGOST&#039;].algorithm = &quot;ECCGOST&quot;
        self.alg_policy[&#039;ECCGOST&#039;].name = &quot;ECCGOST&quot;

        self.alg_policy[&#039;ECDSAP256SHA256&#039;] = copy(p)
        self.alg_policy[&#039;ECDSAP256SHA256&#039;].algorithm = &quot;ECDSAP256SHA256&quot;
        self.alg_policy[&#039;ECDSAP256SHA256&#039;].name = &quot;ECDSAP256SHA256&quot;
        self.alg_policy[&#039;ECDSAP256SHA256&#039;].ksk_keysize = None;
        self.alg_policy[&#039;ECDSAP256SHA256&#039;].zsk_keysize = None;

        self.alg_policy[&#039;ECDSAP384SHA384&#039;] = copy(p)
        self.alg_policy[&#039;ECDSAP384SHA384&#039;].algorithm = &quot;ECDSAP384SHA384&quot;
        self.alg_policy[&#039;ECDSAP384SHA384&#039;].name = &quot;ECDSAP384SHA384&quot;
        self.alg_policy[&#039;ECDSAP384SHA384&#039;].ksk_keysize = None;
        self.alg_policy[&#039;ECDSAP384SHA384&#039;].zsk_keysize = None;

        self.alg_policy[&#039;ED25519&#039;] = copy(p)
        self.alg_policy[&#039;ED25519&#039;].algorithm = &quot;ED25519&quot;
        self.alg_policy[&#039;ED25519&#039;].name = &quot;ED25519&quot;
        self.alg_policy[&#039;ED25519&#039;].ksk_keysize = None;
        self.alg_policy[&#039;ED25519&#039;].zsk_keysize = None;

        self.alg_policy[&#039;ED448&#039;] = copy(p)
        self.alg_policy[&#039;ED448&#039;].algorithm = &quot;ED448&quot;
        self.alg_policy[&#039;ED448&#039;].name = &quot;ED448&quot;
        self.alg_policy[&#039;ED448&#039;].ksk_keysize = None;
        self.alg_policy[&#039;ED448&#039;].zsk_keysize = None;

        if filename:
            self.load(filename)

    def load(self, filename):
        self.filename = filename
        self.initial = True
        with open(filename) as f:
            text = f.read()
            self.plex.lexer.lineno = 0
            self.parser.parse(text)

        self.filename = None

    def setup(self, text):
        self.initial = True
        self.plex.lexer.lineno = 0
        self.parser.parse(text)

    def policy(self, zone, **kwargs):
        z = zone.lower()
        p = None

        if z in self.zone_policy:
            p = self.zone_policy[z]

        if p is None:
            p = copy(self.named_policy[&#039;default&#039;])
            p.name = zone
            p.is_constructed = True

        if p.algorithm is None:
            parent = p.parent or self.named_policy[&#039;default&#039;]
            while parent and not parent.algorithm:
                parent = parent.parent
            p.algorithm = parent and parent.algorithm or None

        if p.algorithm in self.alg_policy:
            ap = self.alg_policy[p.algorithm]
        else:
            raise PolicyException(&#039;algorithm not found&#039;)

        if p.directory is None:
            parent = p.parent or self.named_policy[&#039;default&#039;]
            while parent is not None and not parent.directory:
                parent = parent.parent
            p.directory = parent and parent.directory

        if p.coverage is None:
            parent = p.parent or self.named_policy[&#039;default&#039;]
            while parent and not parent.coverage:
                parent = parent.parent
            p.coverage = parent and parent.coverage or ap.coverage

        if p.ksk_keysize is None:
            parent = p.parent or self.named_policy[&#039;default&#039;]
            while parent.parent and not parent.ksk_keysize:
                parent = parent.parent
            p.ksk_keysize = parent and parent.ksk_keysize or ap.ksk_keysize

        if p.zsk_keysize is None:
            parent = p.parent or self.named_policy[&#039;default&#039;]
            while parent.parent and not parent.zsk_keysize:
                parent = parent.parent
            p.zsk_keysize = parent and parent.zsk_keysize or ap.zsk_keysize

        if p.ksk_rollperiod is None:
            parent = p.parent or self.named_policy[&#039;default&#039;]
            while parent.parent and not parent.ksk_rollperiod:
                parent = parent.parent
            p.ksk_rollperiod = parent and \
                parent.ksk_rollperiod or ap.ksk_rollperiod

        if p.zsk_rollperiod is None:
            parent = p.parent or self.named_policy[&#039;default&#039;]
            while parent.parent and not parent.zsk_rollperiod:
                parent = parent.parent
            p.zsk_rollperiod = parent and \
                parent.zsk_rollperiod or ap.zsk_rollperiod

        if p.ksk_prepublish is None:
            parent = p.parent or self.named_policy[&#039;default&#039;]
            while parent.parent and not parent.ksk_prepublish:
                parent = parent.parent
            p.ksk_prepublish = parent and \
                parent.ksk_prepublish or ap.ksk_prepublish

        if p.zsk_prepublish is None:
            parent = p.parent or self.named_policy[&#039;default&#039;]
            while parent.parent and not parent.zsk_prepublish:
                parent = parent.parent
            p.zsk_prepublish = parent and \
                parent.zsk_prepublish or ap.zsk_prepublish

        if p.ksk_postpublish is None:
            parent = p.parent or self.named_policy[&#039;default&#039;]
            while parent.parent and not parent.ksk_postpublish:
                parent = parent.parent
            p.ksk_postpublish = parent and \
                parent.ksk_postpublish or ap.ksk_postpublish

        if p.zsk_postpublish is None:
            parent = p.parent or self.named_policy[&#039;default&#039;]
            while parent.parent and not parent.zsk_postpublish:
                parent = parent.parent
            p.zsk_postpublish = parent and \
                parent.zsk_postpublish or ap.zsk_postpublish

        if p.keyttl is None:
            parent = p.parent or self.named_policy[&#039;default&#039;]
            while parent is not None and not parent.keyttl:
                parent = parent.parent
            p.keyttl = parent and parent.keyttl

        if &#039;novalidate&#039; not in kwargs or not kwargs[&#039;novalidate&#039;]:
            (valid, msg) = p.validate()
            if not valid:
                raise PolicyException(msg)
                return None

        return p


    def p_policylist(self, p):
        &#039;&#039;&#039;policylist : init policy
                      | policylist policy&#039;&#039;&#039;
        pass

    def p_init(self, p):
        &quot;init :&quot;
        self.initial = False

    def p_policy(self, p):
        &#039;&#039;&#039;policy : alg_policy
                  | zone_policy
                  | named_policy&#039;&#039;&#039;
        pass

    def p_name(self, p):
        &#039;&#039;&#039;name : STR
                | KEYTYPE
                | DATESUFFIX&#039;&#039;&#039;
        p[0] = p[1]
        pass

    def p_domain(self, p):
        &#039;&#039;&#039;domain : STR
                  | QSTRING
                  | KEYTYPE
                  | DATESUFFIX&#039;&#039;&#039;
        p[0] = p[1].strip()
        if not re.match(r&#039;^[\w.-][\w.-]*$&#039;, p[0]):
            raise PolicyException(&#039;invalid domain&#039;)
        pass

    def p_new_policy(self, p):
        &quot;new_policy :&quot;
        self.current = Policy()

    def p_alg_policy(self, p):
        &quot;alg_policy : ALGORITHM_POLICY ALGNAME new_policy alg_option_group SEMI&quot;
        self.current.name = p[2]
        self.current.is_alg = True
        self.alg_policy[p[2]] = self.current
        pass

    def p_zone_policy(self, p):
        &quot;zone_policy : ZONE domain new_policy policy_option_group SEMI&quot;
        self.current.name = p[2].rstrip(&#039;.&#039;)
        self.current.is_zone = True
        self.zone_policy[p[2].rstrip(&#039;.&#039;).lower()] = self.current
        pass

    def p_named_policy(self, p):
        &quot;named_policy : POLICY name new_policy policy_option_group SEMI&quot;
        self.current.name = p[2]
        self.named_policy[p[2].lower()] = self.current
        pass

    def p_duration_1(self, p):
        &quot;duration : NUMBER&quot;
        p[0] = p[1]
        pass

    def p_duration_2(self, p):
        &quot;duration : NONE&quot;
        p[0] = None
        pass

    def p_duration_3(self, p):
        &quot;duration : NUMBER DATESUFFIX&quot;
        if p[2] == &quot;y&quot;:
            p[0] = p[1] * 31536000 # year
        elif p[2] == &quot;mo&quot;:
            p[0] = p[1] * 2592000  # month
        elif p[2] == &quot;w&quot;:
            p[0] = p[1] * 604800   # week
        elif p[2] == &quot;d&quot;:
            p[0] = p[1] * 86400    # day
        elif p[2] == &quot;h&quot;:
            p[0] = p[1] * 3600     # hour
        elif p[2] == &quot;mi&quot;:
            p[0] = p[1] * 60       # minute
        elif p[2] == &quot;s&quot;:
            p[0] = p[1]            # second
        else:
            raise PolicyException(&#039;invalid duration&#039;)

    def p_policy_option_group(self, p):
        &quot;policy_option_group : LBRACE policy_option_list RBRACE&quot;
        pass

    def p_policy_option_list(self, p):
        &#039;&#039;&#039;policy_option_list : policy_option SEMI
                              | policy_option_list policy_option SEMI&#039;&#039;&#039;
        pass

    def p_policy_option(self, p):
        &#039;&#039;&#039;policy_option : parent_option
                         | directory_option
                         | coverage_option
                         | rollperiod_option
                         | prepublish_option
                         | postpublish_option
                         | keysize_option
                         | algorithm_option
                         | keyttl_option
                         | standby_option&#039;&#039;&#039;
        pass

    def p_alg_option_group(self, p):
        &quot;alg_option_group : LBRACE alg_option_list RBRACE&quot;
        pass

    def p_alg_option_list(self, p):
        &#039;&#039;&#039;alg_option_list : alg_option SEMI
                           | alg_option_list alg_option SEMI&#039;&#039;&#039;
        pass

    def p_alg_option(self, p):
        &#039;&#039;&#039;alg_option : coverage_option
                      | rollperiod_option
                      | prepublish_option
                      | postpublish_option
                      | keyttl_option
                      | keysize_option
                      | standby_option&#039;&#039;&#039;
        pass

    def p_parent_option(self, p):
        &quot;parent_option : POLICY name&quot;
        self.current.parent = self.named_policy[p[2].lower()]

    def p_directory_option(self, p):
        &quot;directory_option : DIRECTORY QSTRING&quot;
        self.current.directory = p[2]

    def p_coverage_option(self, p):
        &quot;coverage_option : COVERAGE duration&quot;
        self.current.coverage = p[2]

    def p_rollperiod_option(self, p):
        &quot;rollperiod_option : ROLL_PERIOD KEYTYPE duration&quot;
        if p[2] == &quot;KSK&quot;:
            self.current.ksk_rollperiod = p[3]
        else:
            self.current.zsk_rollperiod = p[3]

    def p_prepublish_option(self, p):
        &quot;prepublish_option : PRE_PUBLISH KEYTYPE duration&quot;
        if p[2] == &quot;KSK&quot;:
            self.current.ksk_prepublish = p[3]
        else:
            self.current.zsk_prepublish = p[3]

    def p_postpublish_option(self, p):
        &quot;postpublish_option : POST_PUBLISH KEYTYPE duration&quot;
        if p[2] == &quot;KSK&quot;:
            self.current.ksk_postpublish = p[3]
        else:
            self.current.zsk_postpublish = p[3]

    def p_keysize_option(self, p):
        &quot;keysize_option : KEY_SIZE KEYTYPE NUMBER&quot;
        if p[2] == &quot;KSK&quot;:
            self.current.ksk_keysize = p[3]
        else:
            self.current.zsk_keysize = p[3]

    def p_standby_option(self, p):
        &quot;standby_option : STANDBY KEYTYPE NUMBER&quot;
        if p[2] == &quot;KSK&quot;:
            self.current.ksk_standby = p[3]
        else:
            self.current.zsk_standby = p[3]

    def p_keyttl_option(self, p):
        &quot;keyttl_option : KEYTTL duration&quot;
        self.current.keyttl = p[2]

    def p_algorithm_option(self, p):
        &quot;algorithm_option : ALGORITHM ALGNAME&quot;
        self.current.algorithm = p[2]

    def p_error(self, p):
        if p:
            print(&quot;%s%s%d:syntax error near &#039;%s&#039;&quot; %
                    (self.filename or &quot;&quot;, &quot;:&quot; if self.filename else &quot;&quot;,
                     p.lineno, p.value))
        else:
            if not self.initial:
                raise PolicyException(&quot;%s%s%d:unexpected end of input&quot; %
                    (self.filename or &quot;&quot;, &quot;:&quot; if self.filename else &quot;&quot;,
                     p and p.lineno or 0))

if __name__ == &quot;__main__&quot;:
    import sys
    if sys.argv[1] == &quot;lex&quot;:
        file = open(sys.argv[2])
        text = file.read()
        file.close()
        plex = PolicyLex(debug=1)
        plex.test(text)
    elif sys.argv[1] == &quot;parse&quot;:
        try:
            pp = dnssec_policy(sys.argv[2], write_tables=True, debug=True)
            print(pp.named_policy[&#039;default&#039;])
            print(pp.policy(&quot;nonexistent.zone&quot;))
        except Exception as e:
            print(e.args[0])
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