1 | #!/usr/bin/perl -w -T
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2 | # XMLRPC interface to manipulate most DNS DB entities
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3 | ##
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4 | # $Id: dns-rpc.cgi 454 2013-01-16 21:43:19Z kdeugau $
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5 | # Copyright 2012 Kris Deugau <kdeugau@deepnet.cx>
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6 | #
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7 | # This program is free software: you can redistribute it and/or modify
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8 | # it under the terms of the GNU General Public License as published by
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9 | # the Free Software Foundation, either version 3 of the License, or
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10 | # (at your option) any later version.
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11 | #
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12 | # This program is distributed in the hope that it will be useful,
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13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | # GNU General Public License for more details.
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16 | #
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17 | # You should have received a copy of the GNU General Public License
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18 | # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 | ##
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20 |
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21 | use strict;
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22 | use warnings;
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23 |
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24 | # don't remove! required for GNU/FHS-ish install from tarball
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25 | use lib '.'; ##uselib##
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26 |
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27 | use DNSDB; # note we're not importing subs; this lets us (ab)use the same sub names here for convenience
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28 | use Data::Dumper;
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29 |
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30 | #use Frontier::RPC2;
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31 | use Frontier::Responder;
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32 |
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33 | ## We need to handle a couple of things globally, rather than pasting the same bit into *every* sub.
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34 | ## So, let's subclass Frontier::RPC2 + Frontier::Responder, so we can override the single sub in each
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35 | ## that needs kicking
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36 | #### hmm. put this in a separate file?
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37 | #package DNSDB::RPC;
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38 | #our @ISA = ("Frontier::RPC2", "Frontier::Responder");
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39 | #package main;
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40 |
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41 | DNSDB::loadConfig(rpcflag => 1);
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42 |
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43 | # need to create a DNSDB object too
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44 | my ($dbh,$msg) = DNSDB::connectDB($DNSDB::config{dbname}, $DNSDB::config{dbuser},
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45 | $DNSDB::config{dbpass}, $DNSDB::config{dbhost});
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46 |
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47 | DNSDB::initGlobals($dbh);
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48 |
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49 | my $methods = {
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50 | 'dnsdb.addDomain' => \&addDomain,
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51 | 'dnsdb.delZone' => \&delZone,
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52 | 'dnsdb.addRDNS' => \&addRDNS,
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53 | 'dnsdb.addGroup' => \&addGroup,
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54 | 'dnsdb.delGroup' => \&delGroup,
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55 | 'dnsdb.addUser' => \&addUser,
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56 | 'dnsdb.updateUser' => \&updateUser,
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57 | 'dnsdb.delUser' => \&delUser,
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58 | 'dnsdb.getLocDropdown' => \&getLocDropdown,
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59 | 'dnsdb.getSOA' => \&getSOA,
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60 | 'dnsdb.getRecLine' => \&getRecLine,
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61 | 'dnsdb.getDomRecs' => \&getDomRecs,
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62 | 'dnsdb.getRecCount' => \&getRecCount,
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63 | 'dnsdb.addRec' => \&addRec,
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64 | 'dnsdb.updateRec' => \&updateRec,
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65 | 'dnsdb.addOrUpdateRevRec' => \&addOrUpdateRevRec,
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66 | 'dnsdb.delRec' => \&delRec,
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67 | #sub getLogCount {}
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68 | #sub getLogEntries {}
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69 | 'dnsdb.getRevPattern' => \&getRevPattern,
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70 | 'dnsdb.zoneStatus' => \&zoneStatus,
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71 | 'dnsdb.getZonesByCIDR' => \&getZonesByCIDR,
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72 |
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73 | 'dnsdb.getMethods' => \&get_method_list
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74 | };
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75 |
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76 | my $res = Frontier::Responder->new(
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77 | methods => $methods
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78 | );
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79 |
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80 | # "Can't do that" errors
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81 | if (!$dbh) {
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82 | print "Content-type: text/xml\n\n".$res->{_decode}->encode_fault(5, $msg);
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83 | exit;
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84 | }
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85 | ##fixme: fail on missing rpcuser/rpcsystem args
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86 |
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87 | print $res->answer;
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88 |
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89 | exit;
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90 |
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91 | ##
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92 | ## Subs below here
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93 | ##
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94 |
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95 | # Utility subs
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96 | sub _aclcheck {
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97 | my $subsys = shift;
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98 | return 1 if grep /$ENV{REMOTE_ADDR}/, @{$DNSDB::config{rpcacl}{$subsys}};
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99 | return 0;
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100 | }
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101 |
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102 | # Let's see if we can factor these out of the RPC method subs
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103 | sub _commoncheck {
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104 | my $argref = shift;
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105 | my $needslog = shift;
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106 |
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107 | die "Missing remote system name\n" if !$argref->{rpcsystem};
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108 | die "Access denied\n" if !_aclcheck($argref->{rpcsystem});
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109 | if ($needslog) {
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110 | die "Missing remote username\n" if !$argref->{rpcuser};
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111 | die "Couldn't set userdata for logging\n"
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112 | unless DNSDB::initRPC($dbh, (username => $argref->{rpcuser}, rpcsys => $argref->{rpcsystem},
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113 | fullname => ($argref->{fullname} ? $argref->{fullname} : $argref->{rpcuser}) ) );
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114 | }
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115 | }
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116 |
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117 | # set location to the zone's default location if none is specified
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118 | sub _loccheck {
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119 | my $argref = shift;
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120 | if (!$argref->{location} && $argref->{defrec} eq 'n') {
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121 | $argref->{location} = DNSDB::getZoneLocation($dbh, $argref->{revrec}, $argref->{parent_id});
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122 | }
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123 | }
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124 |
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125 | # set ttl to zone defailt minttl if none is specified
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126 | sub _ttlcheck {
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127 | my $argref = shift;
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128 | if (!$argref->{ttl}) {
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129 | my $tmp = DNSDB::getSOA($dbh, $argref->{defrec}, $argref->{revrec}, $argref->{parent_id});
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130 | $argref->{ttl} = $tmp->{minttl};
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131 | }
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132 | }
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133 |
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134 | #sub connectDB {
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135 | #sub finish {
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136 | #sub initGlobals {
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137 | #sub initPermissions {
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138 | #sub getPermissions {
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139 | #sub changePermissions {
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140 | #sub comparePermissions {
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141 | #sub changeGroup {
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142 | #sub _log {
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143 |
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144 | sub addDomain {
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145 | my %args = @_;
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146 |
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147 | _commoncheck(\%args, 'y');
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148 |
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149 | my ($code, $msg) = DNSDB::addDomain($dbh, $args{domain}, $args{group}, $args{state});
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150 | die $msg if $code eq 'FAIL';
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151 | return $msg; # domain ID
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152 | }
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153 |
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154 | sub delZone {
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155 | my %args = @_;
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156 |
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157 | _commoncheck(\%args, 'y');
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158 | die "Need forward/reverse zone flag\n" if !$args{revrec};
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159 |
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160 | my ($code,$msg);
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161 | # Let's be nice; delete based on zone id OR zone name. Saves an RPC call round-trip, maybe.
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162 | if ($args{zone} =~ /^\d+$/) {
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163 | ($code,$msg) = DNSDB::delZone($dbh, $args{zone}, $args{revrec});
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164 | } else {
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165 | my $zoneid;
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166 | $zoneid = DNSDB::domainID($dbh, $args{zone}) if $args{revrec} eq 'n';
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167 | $zoneid = DNSDB::revID($dbh, $args{zone}) if $args{revrec} eq 'y';
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168 | die "Can't find zone: $DNSDB::errstr\n" if !$zoneid;
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169 | ($code,$msg) = DNSDB::delZone($dbh, $zoneid, $args{revrec});
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170 | }
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171 | die $msg if $code eq 'FAIL';
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172 | return $msg;
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173 | }
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174 |
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175 | #sub domainName {}
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176 | #sub revName {}
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177 | #sub domainID {}
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178 | #sub revID {}
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179 |
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180 | sub addRDNS {
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181 | my %args = @_;
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182 |
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183 | _commoncheck(\%args, 'y');
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184 |
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185 | my ($code, $msg) = DNSDB::addRDNS($dbh, $args{revzone}, $args{revpatt}, $args{group}, $args{state}, $args{defloc});
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186 | die "$msg\n" if $code eq 'FAIL';
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187 | return $msg; # domain ID
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188 | }
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189 |
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190 | #sub getZoneCount {}
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191 | #sub getZoneList {}
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192 | #sub getZoneLocation {}
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193 |
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194 | sub addGroup {
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195 | my %args = @_;
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196 |
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197 | _commoncheck(\%args, 'y');
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198 | die "Missing new group name\n" if !$args{groupname};
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199 | die "Missing parent group ID\n" if !$args{parent_id};
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200 |
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201 | # not sure how to usefully represent permissions via RPC. :/
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202 | # not to mention, permissions are checked at the UI layer, not the DB layer.
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203 | my $perms = {domain_edit => 1, domain_create => 1, domain_delete => 1,
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204 | record_edit => 1, record_create => 1, record_delete => 1
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205 | };
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206 | ## optional $inhert arg?
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207 | my ($code,$msg) = DNSDB::addGroup($dbh, $args{groupname}, $args{parent_id}, $perms);
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208 | die $msg if $code eq 'FAIL';
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209 | return $msg;
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210 | }
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211 |
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212 | sub delGroup {
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213 | my %args = @_;
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214 |
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215 | _commoncheck(\%args, 'y');
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216 | die "Missing group ID or name to remove\n" if !$args{group};
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217 |
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218 | my ($code,$msg);
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219 | # Let's be nice; delete based on groupid OR group name. Saves an RPC call round-trip, maybe.
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220 | if ($args{group} =~ /^\d+$/) {
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221 | ($code,$msg) = DNSDB::delGroup($dbh, $args{group});
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222 | } else {
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223 | my $grpid = DNSDB::groupID($dbh, $args{group});
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224 | die "Can't find group\n" if !$grpid;
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225 | ($code,$msg) = DNSDB::delGroup($dbh, $grpid);
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226 | }
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227 | die $msg if $code eq 'FAIL';
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228 | return $msg;
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229 | }
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230 |
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231 | #sub getChildren {}
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232 | #sub groupName {}
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233 | #sub getGroupCount {}
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234 | #sub getGroupList {}
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235 | #sub groupID {}
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236 |
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237 | sub addUser {
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238 | my %args = @_;
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239 |
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240 | _commoncheck(\%args, 'y');
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241 |
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242 | # not sure how to usefully represent permissions via RPC. :/
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243 | # not to mention, permissions are checked at the UI layer, not the DB layer.
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244 | # bend and twist; get those arguments in in the right order!
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245 | $args{type} = 'u' if !$args{type};
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246 | $args{permstring} = 'i' if !defined($args{permstring});
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247 | my @userargs = ($args{username}, $args{group}, $args{pass}, $args{state}, $args{type}, $args{permstring});
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248 | for my $argname ('fname','lname','phone') {
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249 | last if !$args{$argname};
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250 | push @userargs, $args{$argname};
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251 | }
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252 | my ($code,$msg) = DNSDB::addUser($dbh, @userargs);
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253 | die $msg if $code eq 'FAIL';
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254 | return $msg;
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255 | }
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256 |
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257 | #sub getUserCount {}
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258 | #sub getUserList {}
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259 | #sub getUserDropdown {}
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260 | #sub checkUser {}
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261 |
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262 | sub updateUser {
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263 | my %args = @_;
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264 |
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265 | _commoncheck(\%args, 'y');
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266 |
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267 | die "Missing UID\n" if !$args{uid};
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268 |
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269 | # bend and twist; get those arguments in in the right order!
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270 | $args{type} = 'u' if !$args{type};
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271 | my @userargs = ($args{uid}, $args{username}, $args{group}, $args{pass}, $args{state}, $args{type});
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272 | for my $argname ('fname','lname','phone') {
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273 | last if !$args{$argname};
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274 | push @userargs, $args{$argname};
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275 | }
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276 | ##fixme: also underlying in DNSDB::updateUser(): no way to just update this or that attribute;
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277 | # have to pass them all in to be overwritten
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278 | my ($code,$msg) = DNSDB::updateUser($dbh, @userargs);
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279 | die $msg if $code eq 'FAIL';
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280 | return $msg;
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281 | }
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282 |
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283 | sub delUser {
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284 | my %args = @_;
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285 |
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286 | _commoncheck(\%args, 'y');
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287 |
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288 | die "Missing UID\n" if !$args{uid};
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289 | my ($code,$msg) = DNSDB::delUser($dbh, $args{uid});
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290 | die $msg if $code eq 'FAIL';
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291 | return $msg;
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292 | }
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293 |
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294 | #sub userFullName {}
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295 | #sub userStatus {}
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296 | #sub getUserData {}
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297 |
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298 | #sub addLoc {}
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299 | #sub updateLoc {}
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300 | #sub delLoc {}
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301 | #sub getLoc {}
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302 | #sub getLocCount {}
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303 | #sub getLocList {}
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304 |
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305 | sub getLocDropdown {
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306 | my %args = @_;
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307 |
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308 | _commoncheck(\%args);
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309 | $args{defloc} = '' if !$args{defloc};
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310 |
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311 | my $ret = DNSDB::getLocDropdown($dbh, $args{group}, $args{defloc});
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312 | return $ret;
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313 | }
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314 |
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315 | sub getSOA {
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316 | my %args = @_;
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317 |
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318 | _commoncheck(\%args);
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319 |
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320 | my $ret = DNSDB::getSOA($dbh, $args{defrec}, $args{revrec}, $args{id});
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321 | if (!$ret) {
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322 | if ($args{defrec} eq 'y') {
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323 | die "No default SOA record in group\n";
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324 | } else {
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325 | die "No SOA record in zone\n";
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326 | }
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327 | }
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328 | return $ret;
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329 | }
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330 |
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331 | #sub updateSOA {}
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332 |
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333 | sub getRecLine {
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334 | my %args = @_;
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335 |
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336 | _commoncheck(\%args);
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337 |
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338 | my $ret = DNSDB::getRecLine($dbh, $args{defrec}, $args{revrec}, $args{id});
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339 |
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340 | die $DNSDB::errstr if !$ret;
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341 |
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342 | return $ret;
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343 | }
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344 |
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345 | sub getDomRecs {
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346 | my %args = @_;
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347 |
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348 | _commoncheck(\%args);
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349 |
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350 | # set some optional args
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351 | $args{nrecs} = 'all' if !$args{nrecs};
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352 | $args{nstart} = 0 if !$args{nstart};
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353 | ## for order, need to map input to column names
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354 | $args{order} = 'host' if !$args{order};
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355 | $args{direction} = 'ASC' if !$args{direction};
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356 |
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357 | my $ret = DNSDB::getDomRecs($dbh, (defrec => $args{defrec}, revrec => $args{revrec}, id => $args{id},
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358 | offset => $args{offset}, sortby => $args{sortby}, sortorder => $args{sortorder},
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359 | filter => $args{filter}) );
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360 |
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361 | die $DNSDB::errstr if !$ret;
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362 |
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363 | return $ret;
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364 | }
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365 |
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366 | sub getRecCount {
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367 | my %args = @_;
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368 |
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369 | _commoncheck(\%args);
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370 |
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371 | # set some optional args
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372 | $args{nrecs} = 'all' if !$args{nrecs};
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373 | $args{nstart} = 0 if !$args{nstart};
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374 | ## for order, need to map input to column names
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375 | $args{order} = 'host' if !$args{order};
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376 | $args{direction} = 'ASC' if !$args{direction};
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377 |
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378 | my $ret = DNSDB::getRecCount($dbh, $args{defrec}, $args{revrec}, $args{id}, $args{filter});
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379 |
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380 | die $DNSDB::errstr if !$ret;
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381 |
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382 | return $ret;
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383 | }
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384 |
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385 | sub addRec {
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386 | my %args = @_;
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387 |
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388 | _commoncheck(\%args, 'y');
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389 |
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390 | _loccheck(\%args);
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391 | _ttlcheck(\%args);
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392 |
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393 | my @recargs = ($dbh, $args{defrec}, $args{revrec}, $args{parent_id},
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394 | \$args{name}, \$args{type}, \$args{address}, $args{ttl}, $args{location});
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395 | if ($args{type} == $DNSDB::reverse_typemap{MX} or $args{type} == $DNSDB::reverse_typemap{SRV}) {
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396 | push @recargs, $args{distance};
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397 | if ($args{type} == $DNSDB::reverse_typemap{SRV}) {
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398 | push @recargs, $args{weight};
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399 | push @recargs, $args{port};
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400 | }
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401 | }
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402 |
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403 | my ($code, $msg) = DNSDB::addRec(@recargs);
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404 |
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405 | die $msg if $code eq 'FAIL';
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406 | return $msg;
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407 | }
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408 |
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409 | sub updateRec {
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410 | my %args = @_;
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411 |
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412 | _commoncheck(\%args, 'y');
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413 |
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414 | # get old line, so we can update only the bits that the caller passed to change
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415 | # note we subbed address for val since it's a little more caller-friendly
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416 | my $oldrec = DNSDB::getRecLine($dbh, $args{defrec}, $args{revrec}, $args{id});
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417 | foreach my $field (qw(name type address ttl location distance weight port)) {
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418 | $args{$field} = $oldrec->{$field} if !$args{$field} && defined($oldrec->{$field});
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419 | }
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420 |
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421 | # note dist, weight, port are not required on all types; will be ignored if not needed.
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422 | # parent_id is the "primary" zone we're updating; necessary for forward/reverse voodoo
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423 | my ($code, $msg) = DNSDB::updateRec($dbh, $args{defrec}, $args{revrec}, $args{id}, $args{parent_id},
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424 | \$args{name}, \$args{type}, \$args{address}, $args{ttl}, $args{location},
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425 | $args{distance}, $args{weight}, $args{port});
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426 |
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427 | die $msg if $code eq 'FAIL';
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428 | return $msg;
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429 | }
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430 |
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431 | # Takes a passed CIDR block and DNS pattern; adds a new record or updates the record(s) affected
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432 | sub addOrUpdateRevRec {
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433 | my %args = @_;
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434 |
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435 | _commoncheck(\%args, 'y');
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436 | $args{cidr} = new NetAddr::IP $args{cidr};
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437 |
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438 | my $zonelist = DNSDB::getZonesByCIDR($dbh, %args);
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439 | if (scalar(@$zonelist) == 0) {
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440 | # enhh.... WTF?
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441 | } elsif (scalar(@$zonelist) == 1) {
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442 | # check if the single zone returned is bigger than the CIDR. if so, we can just add a record
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443 | my $zone = new NetAddr::IP $zonelist->[0]->{revnet};
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444 | if ($zone->contains($args{cidr})) {
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445 | # We need to strip the CIDR mask on IPv4 /32 assignments, or we just add a new record all the time.
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446 | my $filt = ($args{cidr}->{isv6} || $args{cidr}->masklen != 32 ? "$args{cidr}" : $args{cidr}->addr);
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447 | my $reclist = DNSDB::getDomRecs($dbh, defrec => 'n', revrec => 'y',
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448 | id => $zonelist->[0]->{rdns_id}, filter => $filt);
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449 | if (scalar(@$reclist) == 0) {
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450 | # Aren't Magic Numbers Fun? See pseudotype list in dnsadmin.
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451 | my $type = ($args{cidr}->{isv6} ? 65282 : ($args{cidr}->masklen == 32 ? 65280 : 65283) );
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452 | addRec(defrec =>'n', revrec => 'y', parent_id => $zonelist->[0]->{rdns_id}, type => $type,
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453 | address => "$args{cidr}", %args);
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454 | } else {
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455 | foreach my $rec (@$reclist) {
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456 | # pure PTR plus composite types
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457 | next unless $rec->{type} == 12 || $rec->{type} == 65280 || $rec->{type} == 65281
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458 | || $rec->{type} == 65282 || $rec->{type} == 65283 || $rec->{type} == 65284;
|
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459 | next unless $rec->{val} eq $filt; # make sure we really update the record we want to update.
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460 | updateRec(defrec =>'n', revrec => 'y', id => $rec->{record_id},
|
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461 | parent_id => $zonelist->[0]->{rdns_id}, %args);
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462 | last; # only do one record.
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463 | }
|
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464 | }
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465 | } else {
|
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466 | # ebbeh? CIDR is only partly represented in DNS. This needs manual intervention.
|
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467 | } # done single-zone-contains-$cidr
|
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468 | } else {
|
---|
469 | # Overlapping reverse zones shouldn't be possible, so if we're here we've got a CIDR
|
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470 | # that spans multiple reverse zones (eg, /23 CIDR -> 2 /24 rzones)
|
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471 | foreach my $zdata (@$zonelist) {
|
---|
472 | my $reclist = DNSDB::getDomRecs($dbh, defrec => 'n', revrec => 'y',
|
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473 | id => $zdata->{rdns_id}, filter => $zdata->{revnet});
|
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474 | if (scalar(@$reclist) == 0) {
|
---|
475 | my $type = ($args{cidr}->{isv6} ? 65282 : ($args{cidr}->masklen == 32 ? 65280 : 65283) );
|
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476 | addRec(defrec =>'n', revrec => 'y', parent_id => $zdata->{rdns_id}, type => $type,
|
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477 | address => "$args{cidr}", %args);
|
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478 | } else {
|
---|
479 | foreach my $rec (@$reclist) {
|
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480 | # only the composite and/or template types; pure PTR or nontemplate composite
|
---|
481 | # types are nominally impossible here.
|
---|
482 | next unless $rec->{type} == 65282 || $rec->{type} == 65283 || $rec->{type} == 65284;
|
---|
483 | updateRec(defrec =>'n', revrec => 'y', id => $rec->{record_id},
|
---|
484 | parent_id => $zdata->{rdns_id}, %args);
|
---|
485 | last; # only do one record.
|
---|
486 | }
|
---|
487 | }
|
---|
488 | } # iterate zones within $cidr
|
---|
489 | } # done $cidr-contains-zones
|
---|
490 | }
|
---|
491 |
|
---|
492 | sub delRec {
|
---|
493 | my %args = @_;
|
---|
494 |
|
---|
495 | _commoncheck(\%args, 'y');
|
---|
496 |
|
---|
497 | my ($code, $msg) = DNSDB::delRec($dbh, $args{defrec}, $args{recrev}, $args{id});
|
---|
498 |
|
---|
499 | die $msg if $code eq 'FAIL';
|
---|
500 | return $msg;
|
---|
501 | }
|
---|
502 |
|
---|
503 | #sub getLogCount {}
|
---|
504 | #sub getLogEntries {}
|
---|
505 |
|
---|
506 | sub getRevPattern {
|
---|
507 | my %args = @_;
|
---|
508 |
|
---|
509 | _commoncheck(\%args, 'y');
|
---|
510 |
|
---|
511 | return DNSDB::getRevPattern($dbh, $args{cidr}, $args{group});
|
---|
512 | }
|
---|
513 |
|
---|
514 | #sub getTypelist {}
|
---|
515 | #sub parentID {}
|
---|
516 | #sub isParent {}
|
---|
517 |
|
---|
518 | sub zoneStatus {
|
---|
519 | my %args = @_;
|
---|
520 |
|
---|
521 | _commoncheck(\%args, 'y');
|
---|
522 |
|
---|
523 | my @arglist = ($dbh, $args{zoneid});
|
---|
524 | push @arglist, $args{status} if defined($args{status});
|
---|
525 |
|
---|
526 | my $status = DNSDB::zoneStatus(@arglist);
|
---|
527 | }
|
---|
528 |
|
---|
529 | # Get a list of hashes referencing the reverse zone(s) for a passed CIDR block
|
---|
530 | sub getZonesByCIDR {
|
---|
531 | my %args = @_;
|
---|
532 |
|
---|
533 | _commoncheck(\%args, 'y');
|
---|
534 |
|
---|
535 | return DNSDB::getZonesByCIDR($dbh, %args);
|
---|
536 | }
|
---|
537 |
|
---|
538 | #sub importAXFR {}
|
---|
539 | #sub importBIND {}
|
---|
540 | #sub import_tinydns {}
|
---|
541 | #sub export {}
|
---|
542 | #sub __export_tiny {}
|
---|
543 | #sub _printrec_tiny {}
|
---|
544 | #sub mailNotify {}
|
---|
545 |
|
---|
546 | sub get_method_list {
|
---|
547 | my @methods = keys %{$methods};
|
---|
548 | return \@methods;
|
---|
549 | }
|
---|