[2] | 1 | # dns/trunk/DNSDB.pm
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| 2 | # Abstraction functions for DNS administration
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| 3 | ###
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| 4 | # SVN revision info
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| 5 | # $Date: 2010-11-26 22:43:34 +0000 (Fri, 26 Nov 2010) $
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| 6 | # SVN revision $Rev: 66 $
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| 7 | # Last update by $Author: kdeugau $
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| 8 | ###
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| 9 | # Copyright (C) 2008 - Kris Deugau <kdeugau@deepnet.cx>
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| 10 |
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| 11 | package DNSDB;
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| 12 |
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| 13 | use strict;
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| 14 | use warnings;
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| 15 | use Exporter;
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| 16 | use DBI;
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[33] | 17 | use Net::DNS;
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[65] | 18 | use Crypt::PasswdMD5;
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[2] | 19 | #use Net::SMTP;
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| 20 | #use NetAddr::IP qw( Compact );
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| 21 | #use POSIX;
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| 22 | use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
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| 23 |
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| 24 | $VERSION = 0.1;
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| 25 | @ISA = qw(Exporter);
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| 26 | @EXPORT_OK = qw(
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[66] | 27 | &initGlobals &initPermissions &getPermissions &changePermissions
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[65] | 28 | &connectDB &finish
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[22] | 29 | &addDomain &delDomain &domainName
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| 30 | &addGroup &delGroup &getChildren &groupName
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[51] | 31 | &addUser &delUser &userFullName &userStatus
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[22] | 32 | &getSOA &getRecLine &getDomRecs
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| 33 | &addRec &updateRec &delRec
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[34] | 34 | &domStatus &importAXFR
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[2] | 35 | %typemap %reverse_typemap
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[66] | 36 | %permissions @permtypes $permlist
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[2] | 37 | );
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| 38 |
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| 39 | @EXPORT = (); # Export nothing by default.
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| 40 | %EXPORT_TAGS = ( ALL => [qw(
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[66] | 41 | &initGlobals &initPermissions &getPermissions &changePermissions
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[65] | 42 | &connectDB &finish
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[22] | 43 | &addDomain &delDomain &domainName
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| 44 | &addGroup &delGroup &getChildren &groupName
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[51] | 45 | &addUser &delUser &userFullName &userStatus
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[22] | 46 | &getSOA &getRecLine &getDomRecs
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| 47 | &addRec &updateRec &delRec
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[34] | 48 | &domStatus &importAXFR
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[2] | 49 | %typemap %reverse_typemap
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[66] | 50 | %permissions @permtypes $permlist
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[2] | 51 | )]
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| 52 | );
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| 53 |
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| 54 | our $group = 1;
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| 55 | our $errstr = '';
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| 56 |
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| 57 | # Halfway sane defaults for SOA, TTL, etc.
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| 58 | our %def = qw (
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| 59 | contact hostmaster.DOMAIN
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| 60 | prins ns1.myserver.com
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| 61 | soattl 86400
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| 62 | refresh 10800
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| 63 | retry 3600
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| 64 | expire 604800
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| 65 | minttl 10800
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| 66 | ttl 10800
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| 67 | );
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| 68 |
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[66] | 69 | # Arguably defined wholly in the db, but little reason to change without supporting code changes
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| 70 | our @permtypes = qw (
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| 71 | group_edit group_create group_delete
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| 72 | user_edit user_create user_delete
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| 73 | domain_edit domain_create domain_delete
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| 74 | record_edit record_create record_delete
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| 75 | self_edit admin
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| 76 | );
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| 77 | our $permlist = join(',',@permtypes);
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| 78 |
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[2] | 79 | # DNS record type map and reverse map.
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| 80 | # loaded from the database, from http://www.iana.org/assignments/dns-parameters
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| 81 | our %typemap;
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| 82 | our %reverse_typemap;
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| 83 |
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[65] | 84 | our %permissions;
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[55] | 85 |
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[2] | 86 | ##
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| 87 | ## Initialization and cleanup subs
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| 88 | ##
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| 89 |
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[55] | 90 |
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[2] | 91 | ## DNSDB::connectDB()
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| 92 | # Creates connection to DNS database.
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| 93 | # Requires the database name, username, and password.
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| 94 | # Returns a handle to the db.
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| 95 | # Set up for a PostgreSQL db; could be any transactional DBMS with the
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| 96 | # right changes.
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| 97 | sub connectDB {
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| 98 | $errstr = '';
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[15] | 99 | my $dbname = shift;
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| 100 | my $user = shift;
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| 101 | my $pass = shift;
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[2] | 102 | my $dbh;
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| 103 | my $DSN = "DBI:Pg:dbname=$dbname";
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| 104 |
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| 105 | my $host = shift;
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| 106 | $DSN .= ";host=$host" if $host;
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| 107 |
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| 108 | # Note that we want to autocommit by default, and we will turn it off locally as necessary.
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| 109 | # We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
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| 110 | $dbh = DBI->connect($DSN, $user, $pass, {
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| 111 | AutoCommit => 1,
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| 112 | PrintError => 0
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| 113 | })
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| 114 | or return (undef, $DBI::errstr) if(!$dbh);
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| 115 |
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| 116 | # Return here if we can't select. Note that this indicates a
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| 117 | # problem executing the select.
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| 118 | my $sth = $dbh->prepare("select group_id from groups limit 1");
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| 119 | $sth->execute();
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| 120 | return (undef,$DBI::errstr) if ($sth->err);
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| 121 |
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| 122 | # See if the select returned anything (or null data). This should
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| 123 | # succeed if the select executed, but...
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| 124 | $sth->fetchrow();
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| 125 | return (undef,$DBI::errstr) if ($sth->err);
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| 126 |
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| 127 | $sth->finish;
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| 128 |
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| 129 | # If we get here, we should be OK.
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| 130 | return ($dbh,"DB connection OK");
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| 131 | } # end connectDB
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| 132 |
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| 133 |
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| 134 | ## DNSDB::finish()
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| 135 | # Cleans up after database handles and so on.
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| 136 | # Requires a database handle
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| 137 | sub finish {
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| 138 | my $dbh = $_[0];
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| 139 | $dbh->disconnect;
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| 140 | } # end finish
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| 141 |
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| 142 |
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| 143 | ## DNSDB::initGlobals()
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| 144 | # Initialize global variables
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| 145 | # NB: this does NOT include web-specific session variables!
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| 146 | # Requires a database handle
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| 147 | sub initGlobals {
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| 148 | my $dbh = shift;
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| 149 |
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| 150 | # load system-wide site defaults and things from config file
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[29] | 151 | if (open SYSDEFAULTS, "</etc/dnsdb.conf") {
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[2] | 152 | ##fixme - error check!
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[29] | 153 | while (<SYSDEFAULTS>) {
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| 154 | next if /^\s*#/;
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| 155 | $def{contact} = $1 if /contact ?= ?([a-z0-9_.-]+)/i;
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| 156 | $def{prins} = $1 if /prins ?= ?([a-z0-9_.-]+)/i;
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| 157 | $def{soattl} = $1 if /soattl ?= ?([a-z0-9_.-]+)/i;
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| 158 | $def{refresh} = $1 if /refresh ?= ?([a-z0-9_.-]+)/i;
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| 159 | $def{retry} = $1 if /retry ?= ?([a-z0-9_.-]+)/i;
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| 160 | $def{expire} = $1 if /expire ?= ?([a-z0-9_.-]+)/i;
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| 161 | $def{minttl} = $1 if /minttl ?= ?([a-z0-9_.-]+)/i;
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| 162 | $def{ttl} = $1 if /ttl ?= ?([a-z0-9_.-]+)/i;
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[2] | 163 | ##fixme? load DB user/pass from config file?
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[29] | 164 | }
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[2] | 165 | }
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| 166 | # load from database
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| 167 | my $sth = $dbh->prepare("select val,name from rectypes");
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| 168 | $sth->execute;
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| 169 | while (my ($recval,$recname) = $sth->fetchrow_array()) {
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| 170 | $typemap{$recval} = $recname;
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| 171 | $reverse_typemap{$recname} = $recval;
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| 172 | }
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| 173 | } # end initGlobals
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| 174 |
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| 175 |
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[65] | 176 | ## DNSDB::initPermissions()
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| 177 | # Set up permissions global
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| 178 | # Takes database handle and UID
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| 179 | sub initPermissions {
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| 180 | my $dbh = shift;
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| 181 | my $uid = shift;
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| 182 |
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| 183 | # %permissions = $(getPermissions($dbh,'user',$uid));
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| 184 | getPermissions($dbh, 'user', $uid, \%permissions);
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| 185 |
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| 186 | } # end initPermissions()
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| 187 |
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| 188 |
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| 189 | ## DNSDB::getPermissions()
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| 190 | # Get permissions from DB
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| 191 | # Requires DB handle, group or user flag, ID, and hashref.
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| 192 | sub getPermissions {
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| 193 | my $dbh = shift;
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| 194 | my $type = shift;
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| 195 | my $id = shift;
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| 196 | my $hash = shift;
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| 197 |
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| 198 | my $sql = qq(
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| 199 | SELECT
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| 200 | p.admin,p.self_edit,
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| 201 | p.group_create,p.group_edit,p.group_delete,
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| 202 | p.user_create,p.user_edit,p.user_delete,
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| 203 | p.domain_create,p.domain_edit,p.domain_delete,
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| 204 | p.record_create,p.record_edit,p.record_delete
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| 205 | FROM permissions p
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| 206 | );
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| 207 | if ($type eq 'group') {
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| 208 | $sql .= qq(
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| 209 | JOIN groups g ON g.permission_id=p.permission_id
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| 210 | WHERE g.group_id=?
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| 211 | );
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| 212 | } else {
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| 213 | $sql .= qq(
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| 214 | JOIN users u ON u.permission_id=p.permission_id
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| 215 | WHERE u.user_id=?
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| 216 | );
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| 217 | }
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| 218 |
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| 219 | my $sth = $dbh->prepare($sql);
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| 220 |
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| 221 | $sth->execute($id) or die "argh: ".$sth->errstr;
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| 222 |
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| 223 | # my $permref = $sth->fetchrow_hashref;
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| 224 | # return $permref;
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| 225 | # $hash = $permref;
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| 226 | # Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
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| 227 | ($hash->{admin},$hash->{self_edit},
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| 228 | $hash->{group_create},$hash->{group_edit},$hash->{group_delete},
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| 229 | $hash->{user_create},$hash->{user_edit},$hash->{user_delete},
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| 230 | $hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
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| 231 | $hash->{record_create},$hash->{record_edit},$hash->{record_delete})
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| 232 | = $sth->fetchrow_array;
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| 233 |
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| 234 | } # end getPermissions()
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| 235 |
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| 236 |
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| 237 | ## DNSDB::changePermissions()
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| 238 | # Update an ACL entry
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| 239 | # Takes a db handle, type, owner-id, and hashref for the changed permissions.
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| 240 | ##fixme: Must handle case of changing object's permissions from inherited to custom
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| 241 | sub changePermissions {
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| 242 | my $dbh = shift;
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| 243 | my $type = shift;
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| 244 | my $id = shift;
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| 245 | my $newperms = shift;
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| 246 |
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[66] | 247 | my $failmsg = '';
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| 248 |
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[65] | 249 | # see if we're switching from inherited to custom
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[66] | 250 | my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id".
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[65] | 251 | " FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
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[66] | 252 | " JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
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[65] | 253 | " WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
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| 254 | $sth->execute($id);
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| 255 |
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[66] | 256 | my ($wasinherited,$permid) = $sth->fetchrow_array;
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| 257 |
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| 258 | local $dbh->{AutoCommit} = 0;
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| 259 | local $dbh->{RaiseError} = 1;
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| 260 |
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| 261 | # Wrap all the SQL in a transaction
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| 262 | eval {
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| 263 | if ($wasinherited) {
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| 264 | $failmsg = "wasinherited: '$wasinherited'";
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| 265 | die "don't wanna add perms where we don't need to";
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| 266 | ##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
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| 267 | ## FIXME: need to fiddle permissions table to track back to users or groups table
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| 268 | my $sql = "INSERT INTO permissions ($permlist) ".
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| 269 | "SELECT $permlist FROM permissions WHERE permission_id=?";
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| 270 | $sth = $dbh->prepare($sql);
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| 271 | $sth->execute($permid);
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| 272 | $sth = $dbh->prepare("SELECT permission_id FROM ".($type eq 'user' ? 'users' : 'groups').
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| 273 | " WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?");
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| 274 | $sth->execute($id);
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| 275 | ($permid) = $sth->fetchrow_array;
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| 276 | }
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| 277 | foreach (@permtypes) {
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| 278 | if (defined ($newperms->{$_})) {
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| 279 | $sth = $dbh->prepare("UPDATE permissions SET $_=? WHERE permission_id=?");
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| 280 | $sth->execute($newperms->{$_},$permid);
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| 281 | }
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| 282 | }
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| 283 | $dbh->commit;
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| 284 | }; # end eval
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| 285 | if ($@) {
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| 286 | my $msg = $@;
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| 287 | eval { $dbh->rollback; };
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| 288 | return ('FAIL',"$failmsg: $msg");
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| 289 | } else {
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| 290 | return ('OK',$permid);
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| 291 | }
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| 292 |
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[65] | 293 | } # end changePermissions()
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| 294 |
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| 295 |
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[55] | 296 | ## DNSDB::_log()
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| 297 | # Log an action
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| 298 | # Internal sub
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| 299 | # Takes a database handle, <foo>, <bar>
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| 300 | sub _log {
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| 301 | } # end _log
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| 302 |
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| 303 |
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[2] | 304 | ##
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| 305 | ## Processing subs
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| 306 | ##
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| 307 |
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| 308 | ## DNSDB::addDomain()
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| 309 | # Add a domain
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| 310 | # Takes a database handle, domain name, numeric group, and boolean(ish) state (active/inactive)
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| 311 | # Returns a status code and message
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| 312 | sub addDomain {
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| 313 | $errstr = '';
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| 314 | my $dbh = shift;
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| 315 | return ('FAIL',"Need database handle") if !$dbh;
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| 316 | my $domain = shift;
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| 317 | return ('FAIL',"Need domain") if !defined($domain);
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| 318 | my $group = shift;
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| 319 | return ('FAIL',"Need group") if !defined($group);
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| 320 | my $state = shift;
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| 321 | return ('FAIL',"Need domain status") if !defined($state);
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| 322 |
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[38] | 323 | my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
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[3] | 324 | my $dom_id;
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| 325 |
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[38] | 326 | # quick check to start to see if we've already got one
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| 327 | $sth->execute($domain);
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| 328 | ($dom_id) = $sth->fetchrow_array;
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| 329 |
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| 330 | return ('FAIL', "Domain already exists") if $dom_id;
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| 331 |
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[2] | 332 | # Allow transactions, and raise an exception on errors so we can catch it later.
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| 333 | # Use local to make sure these get "reset" properly on exiting this block
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| 334 | local $dbh->{AutoCommit} = 0;
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| 335 | local $dbh->{RaiseError} = 1;
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| 336 |
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| 337 | # Wrap all the SQL in a transaction
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| 338 | eval {
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| 339 | # insert the domain...
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| 340 | my $sth = $dbh->prepare("insert into domains (domain,group_id,status) values (?,?,?)");
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| 341 | $sth->execute($domain,$group,$state);
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| 342 |
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| 343 | # get the ID...
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| 344 | $sth = $dbh->prepare("select domain_id from domains where domain='$domain'");
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| 345 | $sth->execute;
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[3] | 346 | ($dom_id) = $sth->fetchrow_array();
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[2] | 347 |
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| 348 | # ... and now we construct the standard records from the default set. NB: group should be variable.
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[3] | 349 | $sth = $dbh->prepare("select host,type,val,distance,weight,port,ttl from default_records where group_id=$group");
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| 350 | my $sth_in = $dbh->prepare("insert into records (domain_id,host,type,val,distance,weight,port,ttl)".
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| 351 | " values ($dom_id,?,?,?,?,?,?,?)");
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[2] | 352 | $sth->execute;
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[3] | 353 | while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $sth->fetchrow_array()) {
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[2] | 354 | $host =~ s/DOMAIN/$domain/g;
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[37] | 355 | $val =~ s/DOMAIN/$domain/g;
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[3] | 356 | $sth_in->execute($host,$type,$val,$dist,$weight,$port,$ttl);
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[2] | 357 | }
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| 358 |
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| 359 | # once we get here, we should have suceeded.
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| 360 | $dbh->commit;
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| 361 | }; # end eval
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| 362 |
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| 363 | if ($@) {
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| 364 | my $msg = $@;
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| 365 | eval { $dbh->rollback; };
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| 366 | return ('FAIL',$msg);
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| 367 | } else {
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[3] | 368 | return ('OK',$dom_id);
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[2] | 369 | }
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| 370 | } # end addDomain
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| 371 |
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| 372 |
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[3] | 373 | ## DNSDB::delDomain()
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| 374 | # Delete a domain.
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| 375 | # for now, just delete the records, then the domain.
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| 376 | # later we may want to archive it in some way instead (status code 2, for example?)
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| 377 | sub delDomain {
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| 378 | my $dbh = shift;
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[5] | 379 | my $domid = shift;
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[3] | 380 |
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| 381 | # Allow transactions, and raise an exception on errors so we can catch it later.
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| 382 | # Use local to make sure these get "reset" properly on exiting this block
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| 383 | local $dbh->{AutoCommit} = 0;
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| 384 | local $dbh->{RaiseError} = 1;
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| 385 |
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[23] | 386 | my $failmsg = '';
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| 387 |
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[3] | 388 | # Wrap all the SQL in a transaction
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| 389 | eval {
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[5] | 390 | my $sth = $dbh->prepare("delete from records where domain_id=?");
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[23] | 391 | $failmsg = "Failure removing domain records";
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[5] | 392 | $sth->execute($domid);
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| 393 | $sth = $dbh->prepare("delete from domains where domain_id=?");
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[23] | 394 | $failmsg = "Failure removing domain";
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[5] | 395 | $sth->execute($domid);
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[3] | 396 |
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| 397 | # once we get here, we should have suceeded.
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[23] | 398 | $dbh->commit;
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[3] | 399 | }; # end eval
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| 400 |
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| 401 | if ($@) {
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| 402 | my $msg = $@;
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| 403 | eval { $dbh->rollback; };
|
---|
[23] | 404 | return ('FAIL',"$failmsg: $msg");
|
---|
[3] | 405 | } else {
|
---|
| 406 | return ('OK','OK');
|
---|
| 407 | }
|
---|
| 408 |
|
---|
| 409 | } # end delDomain()
|
---|
| 410 |
|
---|
| 411 |
|
---|
[2] | 412 | ## DNSDB::domainName()
|
---|
| 413 | # Return the domain name based on a domain ID
|
---|
| 414 | # Takes a database handle and the domain ID
|
---|
| 415 | # Returns the domain name or undef on failure
|
---|
| 416 | sub domainName {
|
---|
| 417 | $errstr = '';
|
---|
| 418 | my $dbh = shift;
|
---|
| 419 | my $domid = shift;
|
---|
| 420 | my $sth = $dbh->prepare("select domain from domains where domain_id=?");
|
---|
| 421 | $sth->execute($domid);
|
---|
| 422 | my ($domname) = $sth->fetchrow_array();
|
---|
| 423 | $errstr = $DBI::errstr if !$domname;
|
---|
| 424 | return $domname if $domname;
|
---|
| 425 | } # end domainName
|
---|
| 426 |
|
---|
| 427 |
|
---|
[18] | 428 | ## DNSDB::addGroup()
|
---|
| 429 | # Add a group
|
---|
[66] | 430 | # Takes a database handle, group name, parent group, hashref for permissions,
|
---|
| 431 | # and optional template-vs-cloneme flag
|
---|
[18] | 432 | # Returns a status code and message
|
---|
| 433 | sub addGroup {
|
---|
| 434 | $errstr = '';
|
---|
| 435 | my $dbh = shift;
|
---|
[20] | 436 | my $groupname = shift;
|
---|
| 437 | my $pargroup = shift;
|
---|
[66] | 438 | my $permissions = shift;
|
---|
[18] | 439 |
|
---|
[66] | 440 | # 0 indicates "custom", hardcoded.
|
---|
[18] | 441 | # Any other value clones that group's default records, if it exists.
|
---|
[66] | 442 | my $inherit = shift || 0;
|
---|
| 443 | ##fixme: need a flag to indicate clone records or <?> ?
|
---|
[18] | 444 |
|
---|
| 445 | # Allow transactions, and raise an exception on errors so we can catch it later.
|
---|
| 446 | # Use local to make sure these get "reset" properly on exiting this block
|
---|
| 447 | local $dbh->{AutoCommit} = 0;
|
---|
| 448 | local $dbh->{RaiseError} = 1;
|
---|
| 449 |
|
---|
[38] | 450 | my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
|
---|
| 451 | my $group_id;
|
---|
| 452 |
|
---|
| 453 | # quick check to start to see if we've already got one
|
---|
| 454 | $sth->execute($groupname);
|
---|
| 455 | ($group_id) = $sth->fetchrow_array;
|
---|
| 456 |
|
---|
| 457 | return ('FAIL', "Group already exists") if $group_id;
|
---|
| 458 |
|
---|
[18] | 459 | # Wrap all the SQL in a transaction
|
---|
| 460 | eval {
|
---|
[38] | 461 | $sth = $dbh->prepare("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)");
|
---|
[20] | 462 | $sth->execute($pargroup,$groupname);
|
---|
[18] | 463 |
|
---|
| 464 | $sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
|
---|
[20] | 465 | $sth->execute($groupname);
|
---|
| 466 | my ($groupid) = $sth->fetchrow_array();
|
---|
[18] | 467 |
|
---|
[66] | 468 | # Permissions
|
---|
| 469 | if ($inherit) {
|
---|
| 470 | } else {
|
---|
| 471 | my @permvals;
|
---|
| 472 | foreach (@permtypes) {
|
---|
| 473 | if (!defined ($permissions->{$_})) {
|
---|
| 474 | push @permvals, 0;
|
---|
| 475 | } else {
|
---|
| 476 | push @permvals, $permissions->{$_};
|
---|
| 477 | }
|
---|
| 478 | }
|
---|
| 479 |
|
---|
| 480 | $sth = $dbh->prepare("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")");
|
---|
| 481 | $sth->execute($groupid,@permvals);
|
---|
| 482 |
|
---|
| 483 | $sth = $dbh->prepare("SELECT permission_id FROM permissions WHERE group_id=?");
|
---|
| 484 | $sth->execute($groupid);
|
---|
| 485 | my ($permid) = $sth->fetchrow_array();
|
---|
| 486 |
|
---|
| 487 | $dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
|
---|
| 488 | } # done permission fiddling
|
---|
| 489 |
|
---|
| 490 | # Default records
|
---|
[18] | 491 | $sth = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
|
---|
[20] | 492 | "VALUES ($groupid,?,?,?,?,?,?,?)");
|
---|
[66] | 493 | if ($inherit) {
|
---|
| 494 | ##fixme: fixme!
|
---|
[18] | 495 | my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
|
---|
| 496 | while (my @clonedata = $sth2->fetchrow_array) {
|
---|
| 497 | $sth->execute(@clonedata);
|
---|
| 498 | }
|
---|
| 499 | } else {
|
---|
[66] | 500 | ##fixme: Hardcoding is Bad, mmmmkaaaay?
|
---|
[18] | 501 | # reasonable basic defaults for SOA, MX, NS, and minimal hosting
|
---|
| 502 | # could load from a config file, but somewhere along the line we need hardcoded bits.
|
---|
| 503 | $sth->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
|
---|
| 504 | $sth->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
|
---|
| 505 | $sth->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
|
---|
| 506 | $sth->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
|
---|
| 507 | $sth->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
|
---|
| 508 | $sth->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
|
---|
| 509 | }
|
---|
| 510 |
|
---|
| 511 | # once we get here, we should have suceeded.
|
---|
| 512 | $dbh->commit;
|
---|
| 513 | }; # end eval
|
---|
| 514 |
|
---|
| 515 | if ($@) {
|
---|
| 516 | my $msg = $@;
|
---|
| 517 | eval { $dbh->rollback; };
|
---|
| 518 | return ('FAIL',$msg);
|
---|
| 519 | } else {
|
---|
| 520 | return ('OK','OK');
|
---|
| 521 | }
|
---|
| 522 |
|
---|
| 523 | } # end addGroup()
|
---|
| 524 |
|
---|
| 525 |
|
---|
[22] | 526 | ## DNSDB::delGroup()
|
---|
| 527 | # Delete a group.
|
---|
| 528 | # Takes a group ID
|
---|
| 529 | # Returns a status code and message
|
---|
| 530 | sub delGroup {
|
---|
| 531 | my $dbh = shift;
|
---|
| 532 | my $groupid = shift;
|
---|
| 533 |
|
---|
| 534 | # Allow transactions, and raise an exception on errors so we can catch it later.
|
---|
| 535 | # Use local to make sure these get "reset" properly on exiting this block
|
---|
| 536 | local $dbh->{AutoCommit} = 0;
|
---|
| 537 | local $dbh->{RaiseError} = 1;
|
---|
| 538 |
|
---|
| 539 | ##fixme: locate "knowable" error conditions and deal with them before the eval
|
---|
[23] | 540 | # ... or inside, whatever.
|
---|
[22] | 541 | # -> domains still exist in group
|
---|
| 542 | # -> ...
|
---|
[23] | 543 | my $failmsg = '';
|
---|
[22] | 544 |
|
---|
| 545 | # Wrap all the SQL in a transaction
|
---|
| 546 | eval {
|
---|
[23] | 547 | my $sth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
|
---|
[22] | 548 | $sth->execute($groupid);
|
---|
[23] | 549 | my ($domcnt) = $sth->fetchrow_array;
|
---|
| 550 | $failmsg = "Can't remove group ".groupName($dbh,$groupid);
|
---|
| 551 | die "$domcnt domains still in group\n" if $domcnt;
|
---|
| 552 |
|
---|
| 553 | $sth = $dbh->prepare("delete from default_records where group_id=?");
|
---|
| 554 | $failmsg = "Failed to delete default records for ".groupName($dbh,$groupid);
|
---|
| 555 | $sth->execute($groupid);
|
---|
[22] | 556 | $sth = $dbh->prepare("delete from groups where group_id=?");
|
---|
[23] | 557 | $failmsg = "Failed to remove group ".groupName($dbh,$groupid);
|
---|
[22] | 558 | $sth->execute($groupid);
|
---|
| 559 |
|
---|
| 560 | # once we get here, we should have suceeded.
|
---|
| 561 | $dbh->commit;
|
---|
| 562 | }; # end eval
|
---|
| 563 |
|
---|
| 564 | if ($@) {
|
---|
| 565 | my $msg = $@;
|
---|
| 566 | eval { $dbh->rollback; };
|
---|
[23] | 567 | return ('FAIL',"$failmsg: $msg");
|
---|
[22] | 568 | } else {
|
---|
| 569 | return ('OK','OK');
|
---|
| 570 | }
|
---|
| 571 | } # end delGroup()
|
---|
| 572 |
|
---|
| 573 |
|
---|
[19] | 574 | ## DNSDB::getChildren()
|
---|
| 575 | # Get a list of all groups whose parent^n is group <n>
|
---|
[24] | 576 | # Takes a database handle, group ID, reference to an array to put the group IDs in,
|
---|
| 577 | # and an optional flag to return only immediate children or all children-of-children
|
---|
| 578 | # default to returning all children
|
---|
[19] | 579 | # Calls itself
|
---|
| 580 | sub getChildren {
|
---|
| 581 | $errstr = '';
|
---|
| 582 | my $dbh = shift;
|
---|
[20] | 583 | my $rootgroup = shift;
|
---|
| 584 | my $groupdest = shift;
|
---|
[24] | 585 | my $immed = shift || 'all';
|
---|
[19] | 586 |
|
---|
| 587 | # special break for default group; otherwise we get stuck.
|
---|
[20] | 588 | if ($rootgroup == 1) {
|
---|
[19] | 589 | # by definition, group 1 is the Root Of All Groups
|
---|
[24] | 590 | my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
|
---|
| 591 | ($immed ne 'all' ? " AND parent_group_id=1" : ''));
|
---|
[19] | 592 | $sth->execute;
|
---|
| 593 | while (my @this = $sth->fetchrow_array) {
|
---|
[20] | 594 | push @$groupdest, @this;
|
---|
[19] | 595 | }
|
---|
| 596 | } else {
|
---|
| 597 | my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=?");
|
---|
[20] | 598 | $sth->execute($rootgroup);
|
---|
[19] | 599 | return if $sth->rows == 0;
|
---|
[20] | 600 | my @grouplist;
|
---|
| 601 | while (my ($group) = $sth->fetchrow_array) {
|
---|
| 602 | push @$groupdest, $group;
|
---|
[24] | 603 | getChildren($dbh,$group,$groupdest) if $immed eq 'all';
|
---|
[19] | 604 | }
|
---|
| 605 | }
|
---|
| 606 | } # end getChildren()
|
---|
| 607 |
|
---|
| 608 |
|
---|
[20] | 609 | ## DNSDB::groupName()
|
---|
[17] | 610 | # Return the group name based on a group ID
|
---|
| 611 | # Takes a database handle and the group ID
|
---|
| 612 | # Returns the group name or undef on failure
|
---|
[20] | 613 | sub groupName {
|
---|
[13] | 614 | $errstr = '';
|
---|
| 615 | my $dbh = shift;
|
---|
[20] | 616 | my $groupid = shift;
|
---|
| 617 | my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
|
---|
| 618 | $sth->execute($groupid);
|
---|
| 619 | my ($groupname) = $sth->fetchrow_array();
|
---|
| 620 | $errstr = $DBI::errstr if !$groupname;
|
---|
| 621 | return $groupname if $groupname;
|
---|
| 622 | } # end groupName
|
---|
[13] | 623 |
|
---|
| 624 |
|
---|
[24] | 625 | ## DNSDB::addUser()
|
---|
| 626 | #
|
---|
| 627 | sub addUser {
|
---|
| 628 | $errstr = '';
|
---|
| 629 | my $dbh = shift;
|
---|
| 630 | return ('FAIL',"Need database handle") if !$dbh;
|
---|
| 631 | my $username = shift;
|
---|
| 632 | return ('FAIL',"Missing username") if !defined($username);
|
---|
| 633 | my $group = shift;
|
---|
| 634 | return ('FAIL',"Missing group") if !defined($group);
|
---|
| 635 | my $pass = shift;
|
---|
| 636 | return ('FAIL',"Missing password") if !defined($pass);
|
---|
| 637 | my $state = shift;
|
---|
| 638 | return ('FAIL',"Need account status") if !defined($state);
|
---|
[25] | 639 |
|
---|
| 640 | my $type = shift || 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
|
---|
| 641 |
|
---|
| 642 | my $fname = shift || $username;
|
---|
[24] | 643 | my $lname = shift || '';
|
---|
[25] | 644 | my $phone = shift || ''; # not going format-check
|
---|
[24] | 645 |
|
---|
[38] | 646 | my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
|
---|
[24] | 647 | my $user_id;
|
---|
| 648 |
|
---|
[38] | 649 | # quick check to start to see if we've already got one
|
---|
| 650 | $sth->execute($username);
|
---|
| 651 | ($user_id) = $sth->fetchrow_array;
|
---|
| 652 |
|
---|
| 653 | return ('FAIL', "User already exists") if $user_id;
|
---|
| 654 |
|
---|
[24] | 655 | # Allow transactions, and raise an exception on errors so we can catch it later.
|
---|
| 656 | # Use local to make sure these get "reset" properly on exiting this block
|
---|
| 657 | local $dbh->{AutoCommit} = 0;
|
---|
| 658 | local $dbh->{RaiseError} = 1;
|
---|
| 659 |
|
---|
| 660 | # Wrap all the SQL in a transaction
|
---|
| 661 | eval {
|
---|
| 662 | # insert the user...
|
---|
[25] | 663 | my $sth = $dbh->prepare("INSERT INTO users (group_id,username,password,firstname,lastname,phone,type,status) ".
|
---|
| 664 | "VALUES (?,?,?,?,?,?,?,?)");
|
---|
[55] | 665 | $sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state);
|
---|
[24] | 666 |
|
---|
| 667 | # get the ID...
|
---|
| 668 | $sth = $dbh->prepare("select user_id from users where username=?");
|
---|
| 669 | $sth->execute($username);
|
---|
| 670 | ($user_id) = $sth->fetchrow_array();
|
---|
| 671 |
|
---|
[25] | 672 | ##fixme: add another table to hold name/email for log table?
|
---|
[65] | 673 | die "dying horribly\n";
|
---|
[25] | 674 |
|
---|
[24] | 675 | # once we get here, we should have suceeded.
|
---|
| 676 | $dbh->commit;
|
---|
| 677 | }; # end eval
|
---|
| 678 |
|
---|
| 679 | if ($@) {
|
---|
| 680 | my $msg = $@;
|
---|
| 681 | eval { $dbh->rollback; };
|
---|
| 682 | return ('FAIL',$msg);
|
---|
| 683 | } else {
|
---|
| 684 | return ('OK',$user_id);
|
---|
| 685 | }
|
---|
| 686 | } # end addUser
|
---|
| 687 |
|
---|
| 688 |
|
---|
[55] | 689 | ## DNSDB::checkUser()
|
---|
| 690 | # Check user/pass combo on login
|
---|
| 691 | sub checkUser {
|
---|
| 692 | my $dbh = shift;
|
---|
| 693 | my $user = shift;
|
---|
[56] | 694 | my $inpass = shift;
|
---|
[55] | 695 |
|
---|
| 696 | my $sth = $dbh->prepare("SELECT user_id,group_id,password,firstname,lastname FROM users WHERE username=?");
|
---|
| 697 | $sth->execute($user);
|
---|
| 698 | my ($uid,$gid,$pass,$fname,$lname) = $sth->fetchrow_array;
|
---|
| 699 | my $loginfailed = 1 if !defined($uid);
|
---|
| 700 |
|
---|
| 701 | if ($pass =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
|
---|
[56] | 702 | $loginfailed = 1 if $pass ne unix_md5_crypt($inpass,$1);
|
---|
[55] | 703 | } else {
|
---|
[56] | 704 | $loginfailed = 1 if $pass ne $inpass;
|
---|
[55] | 705 | }
|
---|
| 706 |
|
---|
| 707 | # nnnngggg
|
---|
| 708 | return ($uid, $gid);
|
---|
| 709 | } # end checkUser
|
---|
| 710 |
|
---|
| 711 |
|
---|
[24] | 712 | ## DNSDB::delUser()
|
---|
| 713 | #
|
---|
| 714 | sub delUser {
|
---|
[25] | 715 | my $dbh = shift;
|
---|
| 716 | return ('FAIL',"Need database handle") if !$dbh;
|
---|
| 717 | my $userid = shift;
|
---|
| 718 | return ('FAIL',"Missing userid") if !defined($userid);
|
---|
| 719 |
|
---|
| 720 | my $sth = $dbh->prepare("delete from users where user_id=?");
|
---|
| 721 | $sth->execute($userid);
|
---|
| 722 |
|
---|
| 723 | return ('FAIL',"Couldn't remove user: ".$sth->errstr) if $sth->err;
|
---|
| 724 |
|
---|
| 725 | return ('OK','OK');
|
---|
| 726 |
|
---|
[24] | 727 | } # end delUser
|
---|
| 728 |
|
---|
| 729 |
|
---|
[25] | 730 | ## DNSDB::userFullName()
|
---|
| 731 | # Return a pretty string!
|
---|
| 732 | # Takes a user_id and optional printf-ish string to indicate which pieces where:
|
---|
| 733 | # %u for the username
|
---|
| 734 | # %f for the first name
|
---|
| 735 | # %l for the last name
|
---|
| 736 | # All other text in the passed string will be left as-is.
|
---|
| 737 | ##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
|
---|
| 738 | sub userFullName {
|
---|
| 739 | $errstr = '';
|
---|
| 740 | my $dbh = shift;
|
---|
| 741 | my $userid = shift;
|
---|
| 742 | my $fullformat = shift || '%f %l (%u)';
|
---|
| 743 | my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
|
---|
| 744 | $sth->execute($userid);
|
---|
| 745 | my ($uname,$fname,$lname) = $sth->fetchrow_array();
|
---|
| 746 | $errstr = $DBI::errstr if !$uname;
|
---|
| 747 |
|
---|
| 748 | $fullformat =~ s/\%u/$uname/g;
|
---|
| 749 | $fullformat =~ s/\%f/$fname/g;
|
---|
| 750 | $fullformat =~ s/\%l/$lname/g;
|
---|
| 751 |
|
---|
| 752 | return $fullformat;
|
---|
| 753 | } # end userFullName
|
---|
| 754 |
|
---|
| 755 |
|
---|
[51] | 756 | ## DNSDB::userStatus()
|
---|
| 757 | # Sets and/or returns a user's status
|
---|
| 758 | # Takes a database handle, user ID and optionally a status argument
|
---|
| 759 | # Returns undef on errors.
|
---|
| 760 | sub userStatus {
|
---|
| 761 | my $dbh = shift;
|
---|
| 762 | my $id = shift;
|
---|
| 763 | my $newstatus = shift;
|
---|
| 764 |
|
---|
| 765 | return undef if $id !~ /^\d+$/;
|
---|
| 766 |
|
---|
| 767 | my $sth;
|
---|
| 768 |
|
---|
| 769 | # ooo, fun! let's see what we were passed for status
|
---|
| 770 | if ($newstatus) {
|
---|
| 771 | $sth = $dbh->prepare("update users set status=? where user_id=?");
|
---|
| 772 | # ass-u-me caller knows what's going on in full
|
---|
| 773 | if ($newstatus =~ /^[01]$/) { # only two valid for now.
|
---|
| 774 | $sth->execute($newstatus,$id);
|
---|
| 775 | } elsif ($newstatus =~ /^usero(?:n|ff)$/) {
|
---|
| 776 | $sth->execute(($newstatus eq 'useron' ? 1 : 0),$id);
|
---|
| 777 | }
|
---|
| 778 | }
|
---|
| 779 |
|
---|
| 780 | $sth = $dbh->prepare("select status from users where user_id=?");
|
---|
| 781 | $sth->execute($id);
|
---|
| 782 | my ($status) = $sth->fetchrow_array;
|
---|
| 783 | return $status;
|
---|
| 784 | } # end userStatus()
|
---|
| 785 |
|
---|
| 786 |
|
---|
[2] | 787 | ## DNSDB::editRecord()
|
---|
| 788 | # Change an existing record
|
---|
| 789 | # Takes a database handle, default/live flag, record ID, and new data and updates the data fields for it
|
---|
| 790 | sub editRecord {
|
---|
| 791 | $errstr = '';
|
---|
| 792 | my $dbh = shift;
|
---|
| 793 | my $defflag = shift;
|
---|
| 794 | my $recid = shift;
|
---|
| 795 | my $host = shift;
|
---|
| 796 | my $address = shift;
|
---|
| 797 | my $distance = shift;
|
---|
| 798 | my $weight = shift;
|
---|
| 799 | my $port = shift;
|
---|
| 800 | my $ttl = shift;
|
---|
| 801 | }
|
---|
| 802 |
|
---|
| 803 |
|
---|
| 804 | ## DNSDB::getSOA()
|
---|
| 805 | # Return all suitable fields from an SOA record in separate elements of a hash
|
---|
| 806 | # Takes a database handle, default/live flag, and group (default) or domain (live) ID
|
---|
| 807 | sub getSOA {
|
---|
| 808 | $errstr = '';
|
---|
| 809 | my $dbh = shift;
|
---|
| 810 | my $def = shift;
|
---|
| 811 | my $id = shift;
|
---|
| 812 | my %ret;
|
---|
| 813 |
|
---|
| 814 | my $sql = "select record_id,host,val,ttl from";
|
---|
| 815 | if ($def eq 'def' or $def eq 'y') {
|
---|
| 816 | $sql .= " default_records where group_id=$id and type=$reverse_typemap{SOA}";
|
---|
| 817 | } else {
|
---|
| 818 | # we're editing a live SOA record; find based on domain
|
---|
| 819 | $sql .= " records where domain_id=$id and type=$reverse_typemap{SOA}";
|
---|
| 820 | }
|
---|
| 821 | my $sth = $dbh->prepare($sql);
|
---|
| 822 | $sth->execute;
|
---|
| 823 |
|
---|
| 824 | my ($recid,$host,$val,$ttl) = $sth->fetchrow_array();
|
---|
| 825 | my ($prins,$contact) = split /:/, $host;
|
---|
| 826 | my ($refresh,$retry,$expire,$minttl) = split /:/, $val;
|
---|
| 827 |
|
---|
| 828 | $ret{recid} = $recid;
|
---|
| 829 | $ret{ttl} = $ttl;
|
---|
| 830 | $ret{prins} = $prins;
|
---|
| 831 | $ret{contact} = $contact;
|
---|
| 832 | $ret{refresh} = $refresh;
|
---|
| 833 | $ret{retry} = $retry;
|
---|
| 834 | $ret{expire} = $expire;
|
---|
| 835 | $ret{minttl} = $minttl;
|
---|
| 836 |
|
---|
| 837 | return %ret;
|
---|
| 838 | } # end getSOA()
|
---|
| 839 |
|
---|
| 840 |
|
---|
| 841 | ## DNSDB::getRecLine()
|
---|
| 842 | # Return all data fields for a zone record in separate elements of a hash
|
---|
| 843 | # Takes a database handle, default/live flag, and record ID
|
---|
| 844 | sub getRecLine {
|
---|
| 845 | $errstr = '';
|
---|
| 846 | my $dbh = shift;
|
---|
| 847 | my $def = shift;
|
---|
| 848 | my $id = shift;
|
---|
| 849 |
|
---|
[62] | 850 | my $sql = "SELECT record_id,host,type,val,distance,weight,port,ttl".
|
---|
| 851 | (($def eq 'def' or $def eq 'y') ? ',group_id FROM default_' : ',domain_id FROM ').
|
---|
| 852 | "records WHERE record_id=?";
|
---|
[2] | 853 | my $sth = $dbh->prepare($sql);
|
---|
[62] | 854 | $sth->execute($id);
|
---|
[2] | 855 |
|
---|
[62] | 856 | my ($recid,$host,$rtype,$val,$distance,$weight,$port,$ttl,$parid) = $sth->fetchrow_array();
|
---|
[2] | 857 |
|
---|
| 858 | if ($sth->err) {
|
---|
| 859 | $errstr = $DBI::errstr;
|
---|
| 860 | return undef;
|
---|
| 861 | }
|
---|
[3] | 862 | my %ret;
|
---|
[2] | 863 | $ret{recid} = $recid;
|
---|
| 864 | $ret{host} = $host;
|
---|
| 865 | $ret{type} = $rtype;
|
---|
| 866 | $ret{val} = $val;
|
---|
| 867 | $ret{distance}= $distance;
|
---|
| 868 | $ret{weight} = $weight;
|
---|
| 869 | $ret{port} = $port;
|
---|
| 870 | $ret{ttl} = $ttl;
|
---|
[62] | 871 | $ret{parid} = $parid;
|
---|
[2] | 872 |
|
---|
| 873 | return %ret;
|
---|
| 874 | }
|
---|
| 875 |
|
---|
| 876 |
|
---|
| 877 | ##fixme: should use above (getRecLine()) to get lines for below?
|
---|
| 878 | ## DNSDB::getDomRecs()
|
---|
| 879 | # Return records for a domain
|
---|
| 880 | # Takes a database handle, default/live flag, group/domain ID, start,
|
---|
| 881 | # number of records, sort field, and sort order
|
---|
| 882 | # Returns a reference to an array of hashes
|
---|
| 883 | sub getDomRecs {
|
---|
| 884 | $errstr = '';
|
---|
| 885 | my $dbh = shift;
|
---|
| 886 | my $type = shift;
|
---|
| 887 | my $id = shift;
|
---|
[4] | 888 | my $nrecs = shift || 'all';
|
---|
| 889 | my $nstart = shift || 0;
|
---|
[2] | 890 |
|
---|
[4] | 891 | ## for order, need to map input to column names
|
---|
| 892 | my $order = shift || 'host';
|
---|
| 893 |
|
---|
[62] | 894 | my $sql = "SELECT record_id,host,type,val,distance,weight,port,ttl FROM ";
|
---|
[2] | 895 | if ($type eq 'def' or $type eq 'y') {
|
---|
| 896 | $sql .= " default_records where group_id=$id";
|
---|
| 897 | } else {
|
---|
| 898 | $sql .= " records where domain_id=$id";
|
---|
| 899 | }
|
---|
[4] | 900 | $sql .= " and not type=$reverse_typemap{SOA} order by $order";
|
---|
[15] | 901 | ##fixme: need to set nstart properly (offset is not internally multiplied with limit)
|
---|
[17] | 902 | $sql .= " limit $nrecs offset ".($nstart*$nrecs) if $nstart ne 'all';
|
---|
[4] | 903 |
|
---|
[2] | 904 | my $sth = $dbh->prepare($sql);
|
---|
| 905 | $sth->execute;
|
---|
| 906 |
|
---|
| 907 | my @retbase;
|
---|
| 908 | while (my $ref = $sth->fetchrow_hashref()) {
|
---|
| 909 | push @retbase, $ref;
|
---|
| 910 | }
|
---|
| 911 |
|
---|
| 912 | my $ret = \@retbase;
|
---|
| 913 | return $ret;
|
---|
| 914 | } # end getDomRecs()
|
---|
| 915 |
|
---|
| 916 |
|
---|
[3] | 917 | ## DNSDB::addRec()
|
---|
[2] | 918 | # Add a new record to a domain or a group's default records
|
---|
| 919 | # Takes a database handle, default/live flag, group/domain ID,
|
---|
| 920 | # host, type, value, and TTL
|
---|
| 921 | # Some types require additional detail: "distance" for MX and SRV,
|
---|
| 922 | # and weight/port for SRV
|
---|
| 923 | # Returns a status code and detail message in case of error
|
---|
| 924 | sub addRec {
|
---|
| 925 | $errstr = '';
|
---|
| 926 | my $dbh = shift;
|
---|
| 927 | my $defrec = shift;
|
---|
| 928 | my $id = shift;
|
---|
| 929 |
|
---|
| 930 | my $host = shift;
|
---|
| 931 | my $rectype = shift;
|
---|
| 932 | my $val = shift;
|
---|
| 933 | my $ttl = shift;
|
---|
| 934 |
|
---|
| 935 | my $fields = ($defrec eq 'y' ? 'group_id' : 'domain_id').",host,type,val,ttl";
|
---|
[24] | 936 | my $vallen = "?,?,?,?,?";
|
---|
| 937 | my @vallist = ($id,$host,$rectype,$val,$ttl);
|
---|
[2] | 938 |
|
---|
| 939 | my $dist;
|
---|
| 940 | if ($rectype == $reverse_typemap{MX} or $rectype == $reverse_typemap{SRV}) {
|
---|
| 941 | $dist = shift;
|
---|
| 942 | return ('FAIL',"Need distance for $typemap{$rectype} record") if !defined($dist);
|
---|
| 943 | $fields .= ",distance";
|
---|
[24] | 944 | $vallen .= ",?";
|
---|
| 945 | push @vallist, $dist;
|
---|
[2] | 946 | }
|
---|
| 947 | my $weight;
|
---|
| 948 | my $port;
|
---|
| 949 | if ($rectype == $reverse_typemap{SRV}) {
|
---|
[24] | 950 | # check for _service._protocol. NB: RFC2782 does not say "MUST"... nor "SHOULD"...
|
---|
| 951 | # it just says (paraphrased) "... is prepended with _ to prevent DNS collisions"
|
---|
| 952 | return ('FAIL',"SRV records must begin with _service._protocol")
|
---|
| 953 | if $host !~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-z0-9-]+/;
|
---|
[2] | 954 | $weight = shift;
|
---|
| 955 | $port = shift;
|
---|
| 956 | return ('FAIL',"Need weight and port for SRV record") if !defined($weight) or !defined($port);
|
---|
| 957 | $fields .= ",weight,port";
|
---|
[24] | 958 | $vallen .= ",?,?";
|
---|
| 959 | push @vallist, ($weight,$port);
|
---|
[2] | 960 | }
|
---|
| 961 |
|
---|
[24] | 962 | my $sql = "insert into ".($defrec eq 'y' ? 'default_' : '')."records ($fields) values ($vallen)";
|
---|
| 963 | ##fixme: use array for values, replace "vallist" with series of ?,?,? etc
|
---|
[2] | 964 | # something is bugging me about this...
|
---|
[15] | 965 | #warn "DEBUG: $sql";
|
---|
[2] | 966 | my $sth = $dbh->prepare($sql);
|
---|
[24] | 967 | $sth->execute(@vallist);
|
---|
[2] | 968 |
|
---|
| 969 | return ('FAIL',$sth->errstr) if $sth->err;
|
---|
| 970 |
|
---|
| 971 | return ('OK','OK');
|
---|
| 972 | } # end addRec()
|
---|
| 973 |
|
---|
| 974 |
|
---|
[16] | 975 | ## DNSDB::updateRec()
|
---|
| 976 | # Update a record
|
---|
| 977 | sub updateRec {
|
---|
| 978 | $errstr = '';
|
---|
[17] | 979 |
|
---|
[16] | 980 | my $dbh = shift;
|
---|
| 981 | my $defrec = shift;
|
---|
| 982 | my $id = shift;
|
---|
| 983 |
|
---|
| 984 | # all records have these
|
---|
| 985 | my $host = shift;
|
---|
| 986 | my $type = shift;
|
---|
| 987 | my $val = shift;
|
---|
| 988 | my $ttl = shift;
|
---|
| 989 |
|
---|
| 990 | return('FAIL',"Missing standard argument(s)") if !defined($ttl);
|
---|
| 991 |
|
---|
| 992 | # only MX and SRV will use these
|
---|
| 993 | my $dist = 0;
|
---|
| 994 | my $weight = 0;
|
---|
| 995 | my $port = 0;
|
---|
| 996 |
|
---|
| 997 | if ($type == $reverse_typemap{MX} || $type == $reverse_typemap{SRV}) {
|
---|
[17] | 998 | $dist = shift;
|
---|
| 999 | return ('FAIL',"MX or SRV requires distance") if !defined($dist);
|
---|
[16] | 1000 | if ($type == $reverse_typemap{SRV}) {
|
---|
[17] | 1001 | $weight = shift;
|
---|
| 1002 | return ('FAIL',"SRV requires weight") if !defined($weight);
|
---|
| 1003 | $port = shift;
|
---|
| 1004 | return ('FAIL',"SRV requires port") if !defined($port);
|
---|
[16] | 1005 | }
|
---|
| 1006 | }
|
---|
| 1007 |
|
---|
| 1008 | my $sth = $dbh->prepare("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records ".
|
---|
| 1009 | "SET host=?,type=?,val=?,ttl=?,distance=?,weight=?,port=? ".
|
---|
| 1010 | "WHERE record_id=?");
|
---|
| 1011 | $sth->execute($host,$type,$val,$ttl,$dist,$weight,$port,$id);
|
---|
| 1012 |
|
---|
[17] | 1013 | return ('FAIL',$sth->errstr."<br>\n$errstr<br>\n") if $sth->err;
|
---|
[16] | 1014 |
|
---|
| 1015 | return ('OK','OK');
|
---|
| 1016 | } # end updateRec()
|
---|
| 1017 |
|
---|
| 1018 |
|
---|
[3] | 1019 | ## DNSDB::delRec()
|
---|
| 1020 | # Delete a record.
|
---|
| 1021 | sub delRec {
|
---|
| 1022 | $errstr = '';
|
---|
| 1023 | my $dbh = shift;
|
---|
| 1024 | my $defrec = shift;
|
---|
| 1025 | my $id = shift;
|
---|
| 1026 |
|
---|
[62] | 1027 | return "FAIL", "wakka wakka";
|
---|
| 1028 | my $sth = $dbh->prepare("DELETE FROM ".($defrec eq 'y' ? 'default_' : '')."records WHERE record_id=?");
|
---|
[3] | 1029 | $sth->execute($id);
|
---|
| 1030 |
|
---|
[23] | 1031 | return ('FAIL',"Couldn't remove record: ".$sth->errstr) if $sth->err;
|
---|
[3] | 1032 |
|
---|
| 1033 | return ('OK','OK');
|
---|
| 1034 | } # end delRec()
|
---|
| 1035 |
|
---|
| 1036 |
|
---|
| 1037 | ## DNSDB::domStatus()
|
---|
| 1038 | # Sets and/or returns a domain's status
|
---|
| 1039 | # Takes a database handle, domain ID and optionally a status argument
|
---|
| 1040 | # Returns undef on errors.
|
---|
| 1041 | sub domStatus {
|
---|
| 1042 | my $dbh = shift;
|
---|
| 1043 | my $id = shift;
|
---|
| 1044 | my $newstatus = shift;
|
---|
| 1045 |
|
---|
| 1046 | return undef if $id !~ /^\d+$/;
|
---|
| 1047 |
|
---|
| 1048 | my $sth;
|
---|
| 1049 |
|
---|
| 1050 | # ooo, fun! let's see what we were passed for status
|
---|
| 1051 | if ($newstatus) {
|
---|
| 1052 | $sth = $dbh->prepare("update domains set status=? where domain_id=?");
|
---|
| 1053 | # ass-u-me caller knows what's going on in full
|
---|
| 1054 | if ($newstatus =~ /^[01]$/) { # only two valid for now.
|
---|
| 1055 | $sth->execute($newstatus,$id);
|
---|
| 1056 | } elsif ($newstatus =~ /^domo(?:n|ff)$/) {
|
---|
| 1057 | $sth->execute(($newstatus eq 'domon' ? 1 : 0),$id);
|
---|
| 1058 | }
|
---|
| 1059 | }
|
---|
| 1060 |
|
---|
| 1061 | $sth = $dbh->prepare("select status from domains where domain_id=?");
|
---|
| 1062 | $sth->execute($id);
|
---|
| 1063 | my ($status) = $sth->fetchrow_array;
|
---|
| 1064 | return $status;
|
---|
| 1065 | } # end domStatus()
|
---|
| 1066 |
|
---|
| 1067 |
|
---|
[33] | 1068 | ## DNSDB::importAXFR
|
---|
| 1069 | # Import a domain via AXFR
|
---|
[37] | 1070 | # Takes AXFR host, domain to transfer, group to put the domain in,
|
---|
| 1071 | # and optionally:
|
---|
| 1072 | # - active/inactive state flag (defaults to active)
|
---|
| 1073 | # - overwrite-SOA flag (defaults to off)
|
---|
| 1074 | # - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
|
---|
| 1075 | # Returns a status code (OK, WARN, or FAIL) and message - message should be blank
|
---|
| 1076 | # if status is OK, but WARN includes conditions that are not fatal but should
|
---|
| 1077 | # really be reported.
|
---|
[33] | 1078 | sub importAXFR {
|
---|
| 1079 | my $dbh = shift;
|
---|
[35] | 1080 | my $ifrom_in = shift;
|
---|
[33] | 1081 | my $domain = shift;
|
---|
| 1082 | my $group = shift;
|
---|
| 1083 | my $status = shift || 1;
|
---|
| 1084 | my $rwsoa = shift || 0;
|
---|
| 1085 | my $rwns = shift || 0;
|
---|
[37] | 1086 |
|
---|
[33] | 1087 | ##fixme: add mode to delete&replace, merge+overwrite, merge new?
|
---|
| 1088 |
|
---|
[37] | 1089 | my $nrecs = 0;
|
---|
| 1090 | my $soaflag = 0;
|
---|
| 1091 | my $nsflag = 0;
|
---|
| 1092 | my $warnmsg = '';
|
---|
| 1093 | my $ifrom;
|
---|
[33] | 1094 |
|
---|
[35] | 1095 | # choke on possible bad setting in ifrom
|
---|
[37] | 1096 | # IPv4 and v6, and valid hostnames!
|
---|
[35] | 1097 | ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
|
---|
| 1098 | return ('FAIL', "Bad AXFR source host $ifrom")
|
---|
| 1099 | unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
|
---|
| 1100 |
|
---|
[33] | 1101 | # Allow transactions, and raise an exception on errors so we can catch it later.
|
---|
| 1102 | # Use local to make sure these get "reset" properly on exiting this block
|
---|
| 1103 | local $dbh->{AutoCommit} = 0;
|
---|
| 1104 | local $dbh->{RaiseError} = 1;
|
---|
| 1105 |
|
---|
[37] | 1106 | my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
|
---|
[34] | 1107 | my $dom_id;
|
---|
| 1108 |
|
---|
[35] | 1109 | # quick check to start to see if we've already got one
|
---|
[37] | 1110 | $sth->execute($domain);
|
---|
| 1111 | ($dom_id) = $sth->fetchrow_array;
|
---|
[35] | 1112 |
|
---|
| 1113 | return ('FAIL', "Domain already exists") if $dom_id;
|
---|
| 1114 |
|
---|
[33] | 1115 | eval {
|
---|
| 1116 | # can't do this, can't nest transactions. sigh.
|
---|
[35] | 1117 | #my ($dcode, $dmsg) = addDomain(dbh, domain, group, status);
|
---|
[33] | 1118 |
|
---|
| 1119 | ##fixme: serial
|
---|
[37] | 1120 | my $sth = $dbh->prepare("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)");
|
---|
| 1121 | $sth->execute($domain,$group,$status);
|
---|
[33] | 1122 |
|
---|
[35] | 1123 | ## bizarre DBI<->Net::DNS interaction bug:
|
---|
| 1124 | ## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
|
---|
[37] | 1125 | ## fixed, apparently I was doing *something* odd, but not certain what it was that
|
---|
| 1126 | ## caused a commit instead of barfing
|
---|
[35] | 1127 |
|
---|
[33] | 1128 | # get domain id so we can do the records
|
---|
[37] | 1129 | $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
|
---|
| 1130 | $sth->execute($domain);
|
---|
| 1131 | ($dom_id) = $sth->fetchrow_array();
|
---|
[33] | 1132 |
|
---|
[34] | 1133 | my $res = Net::DNS::Resolver->new;
|
---|
[35] | 1134 | $res->nameservers($ifrom);
|
---|
| 1135 | $res->axfr_start($domain)
|
---|
| 1136 | or die "Couldn't begin AXFR\n";
|
---|
[34] | 1137 |
|
---|
[35] | 1138 | while (my $rr = $res->axfr_next()) {
|
---|
[33] | 1139 | my $type = $rr->type;
|
---|
[35] | 1140 |
|
---|
[34] | 1141 | my $sql = "INSERT INTO records (domain_id,host,type,ttl,val";
|
---|
[33] | 1142 | my $vallen = "?,?,?,?,?";
|
---|
| 1143 |
|
---|
[37] | 1144 | $soaflag = 1 if $type eq 'SOA';
|
---|
| 1145 | $nsflag = 1 if $type eq 'NS';
|
---|
[35] | 1146 |
|
---|
| 1147 | my @vallist = ($dom_id, $rr->name, $reverse_typemap{$type}, $rr->ttl);
|
---|
[34] | 1148 |
|
---|
| 1149 | # "Primary" types:
|
---|
| 1150 | # A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
|
---|
| 1151 | # maybe KEY
|
---|
| 1152 |
|
---|
[35] | 1153 | # nasty big ugly case-like thing here, since we have to do *some* different
|
---|
| 1154 | # processing depending on the record. le sigh.
|
---|
| 1155 |
|
---|
[34] | 1156 | if ($type eq 'A') {
|
---|
| 1157 | push @vallist, $rr->address;
|
---|
| 1158 | } elsif ($type eq 'NS') {
|
---|
[37] | 1159 | # hmm. should we warn here if subdomain NS'es are left alone?
|
---|
| 1160 | next if ($rwns && ($rr->name eq $domain));
|
---|
[34] | 1161 | push @vallist, $rr->nsdname;
|
---|
[35] | 1162 | $nsflag = 1;
|
---|
[34] | 1163 | } elsif ($type eq 'CNAME') {
|
---|
| 1164 | push @vallist, $rr->cname;
|
---|
| 1165 | } elsif ($type eq 'SOA') {
|
---|
[37] | 1166 | next if $rwsoa;
|
---|
[34] | 1167 | $vallist[1] = $rr->mname.":".$rr->rname;
|
---|
| 1168 | push @vallist, ($rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum);
|
---|
[35] | 1169 | $soaflag = 1;
|
---|
[34] | 1170 | } elsif ($type eq 'PTR') {
|
---|
| 1171 | # hmm. PTR records should not be in forward zones.
|
---|
| 1172 | } elsif ($type eq 'MX') {
|
---|
[33] | 1173 | $sql .= ",distance";
|
---|
| 1174 | $vallen .= ",?";
|
---|
[34] | 1175 | push @vallist, $rr->exchange;
|
---|
| 1176 | push @vallist, $rr->preference;
|
---|
| 1177 | } elsif ($type eq 'TXT') {
|
---|
| 1178 | ##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
|
---|
| 1179 | ## but don't really seem enthusiastic about it.
|
---|
| 1180 | push @vallist, $rr->txtdata;
|
---|
| 1181 | } elsif ($type eq 'SPF') {
|
---|
| 1182 | ##fixme: and the same caveat here, since it is apparently a clone of ::TXT
|
---|
| 1183 | push @vallist, $rr->txtdata;
|
---|
| 1184 | } elsif ($type eq 'AAAA') {
|
---|
| 1185 | push @vallist, $rr->address;
|
---|
| 1186 | } elsif ($type eq 'SRV') {
|
---|
| 1187 | $sql .= ",distance,weight,port" if $type eq 'SRV';
|
---|
| 1188 | $vallen .= ",?,?,?" if $type eq 'SRV';
|
---|
[37] | 1189 | push @vallist, $rr->target;
|
---|
[34] | 1190 | push @vallist, $rr->priority;
|
---|
| 1191 | push @vallist, $rr->weight;
|
---|
| 1192 | push @vallist, $rr->port;
|
---|
| 1193 | } elsif ($type eq 'KEY') {
|
---|
[35] | 1194 | # we don't actually know what to do with these...
|
---|
[34] | 1195 | push @vallist, ($rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname);
|
---|
[35] | 1196 | } else {
|
---|
[37] | 1197 | push @vallist, $rr->rdatastr;
|
---|
[35] | 1198 | # Finding a different record type is not fatal.... just problematic.
|
---|
[37] | 1199 | # We may not be able to export it correctly.
|
---|
[35] | 1200 | $warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
|
---|
[33] | 1201 | }
|
---|
| 1202 |
|
---|
[34] | 1203 | # BIND supports:
|
---|
| 1204 | # A CNAME HINFO MB(ex) MD(ob) MF(ob) MG(ex) MINFO(ex) MR(ex) MX NS NULL
|
---|
| 1205 | # PTR SOA TXT WKS AFSDB(ex) ISDN(ex) RP(ex) RT(ex) X25(ex) PX
|
---|
| 1206 | # ... if one can ever find the right magic to format them correctly
|
---|
| 1207 |
|
---|
| 1208 | # Net::DNS supports:
|
---|
| 1209 | # RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
|
---|
| 1210 | # EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
|
---|
| 1211 | # DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
|
---|
| 1212 |
|
---|
[37] | 1213 | $sth = $dbh->prepare($sql.") VALUES (".$vallen.")") or die "problem preparing record insert SQL\n";
|
---|
| 1214 | $sth->execute(@vallist) or die "failed to insert ".$rr->string.": ".$sth->errstr."\n";
|
---|
[34] | 1215 |
|
---|
[37] | 1216 | $nrecs++;
|
---|
[34] | 1217 |
|
---|
[37] | 1218 | } # while axfr_next
|
---|
| 1219 |
|
---|
| 1220 | # Overwrite SOA record
|
---|
| 1221 | if ($rwsoa) {
|
---|
| 1222 | $soaflag = 1;
|
---|
| 1223 | my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
|
---|
| 1224 | my $sthputsoa = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
|
---|
| 1225 | $sthgetsoa->execute($group,$reverse_typemap{SOA});
|
---|
| 1226 | while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
|
---|
| 1227 | $host =~ s/DOMAIN/$domain/g;
|
---|
| 1228 | $val =~ s/DOMAIN/$domain/g;
|
---|
| 1229 | $sthputsoa->execute($dom_id,$host,$reverse_typemap{SOA},$val,$ttl);
|
---|
[34] | 1230 | }
|
---|
[37] | 1231 | }
|
---|
[34] | 1232 |
|
---|
[37] | 1233 | # Overwrite NS records
|
---|
| 1234 | if ($rwns) {
|
---|
| 1235 | $nsflag = 1;
|
---|
| 1236 | my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
|
---|
| 1237 | my $sthputns = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
|
---|
| 1238 | $sthgetns->execute($group,$reverse_typemap{NS});
|
---|
| 1239 | while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
|
---|
| 1240 | $host =~ s/DOMAIN/$domain/g;
|
---|
| 1241 | $val =~ s/DOMAIN/$domain/g;
|
---|
| 1242 | $sthputns->execute($dom_id,$host,$reverse_typemap{NS},$val,$ttl);
|
---|
| 1243 | }
|
---|
| 1244 | }
|
---|
[34] | 1245 |
|
---|
[35] | 1246 | die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
|
---|
| 1247 | die "Bad zone: No SOA record!\n" if !$soaflag;
|
---|
| 1248 | die "Bad zone: No NS records!\n" if !$nsflag;
|
---|
| 1249 |
|
---|
[37] | 1250 | $dbh->commit;
|
---|
[35] | 1251 |
|
---|
[33] | 1252 | };
|
---|
| 1253 |
|
---|
| 1254 | if ($@) {
|
---|
| 1255 | my $msg = $@;
|
---|
| 1256 | eval { $dbh->rollback; };
|
---|
[34] | 1257 | return ('FAIL',$msg." $warnmsg");
|
---|
[33] | 1258 | } else {
|
---|
[35] | 1259 | return ('WARN', $warnmsg) if $warnmsg;
|
---|
[33] | 1260 | return ('OK',"ook");
|
---|
| 1261 | }
|
---|
| 1262 |
|
---|
[37] | 1263 | # it should be impossible to get here.
|
---|
[34] | 1264 | return ('WARN',"OOOK!");
|
---|
[33] | 1265 | } # end importAXFR()
|
---|
| 1266 |
|
---|
| 1267 |
|
---|
[2] | 1268 | # shut Perl up
|
---|
| 1269 | 1;
|
---|