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: 2011-02-25 22:56:25 +0000 (Fri, 25 Feb 2011) $
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6 | # SVN revision $Rev: 83 $
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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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17 | use Net::DNS;
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18 | use Crypt::PasswdMD5;
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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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27 | &initGlobals
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28 | &initPermissions &getPermissions &changePermissions &comparePermissions
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29 | &connectDB &finish
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30 | &addDomain &delDomain &domainName
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31 | &addGroup &delGroup &getChildren &groupName
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32 | &addUser &updateUser &delUser &userFullName &userStatus &getUserData
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33 | &getSOA &getRecLine &getDomRecs
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34 | &addRec &updateRec &delRec
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35 | &domStatus &importAXFR
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36 | %typemap %reverse_typemap
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37 | %permissions @permtypes $permlist
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38 | );
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39 |
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40 | @EXPORT = (); # Export nothing by default.
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41 | %EXPORT_TAGS = ( ALL => [qw(
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42 | &initGlobals
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43 | &initPermissions &getPermissions &changePermissions &comparePermissions
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44 | &connectDB &finish
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45 | &addDomain &delDomain &domainName
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46 | &addGroup &delGroup &getChildren &groupName
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47 | &addUser &updateUser &delUser &userFullName &userStatus &getUserData
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48 | &getSOA &getRecLine &getDomRecs
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49 | &addRec &updateRec &delRec
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50 | &domStatus &importAXFR
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51 | %typemap %reverse_typemap
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52 | %permissions @permtypes $permlist
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53 | )]
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54 | );
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55 |
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56 | our $group = 1;
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57 | our $errstr = '';
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58 |
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59 | # Halfway sane defaults for SOA, TTL, etc.
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60 | our %def = qw (
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61 | contact hostmaster.DOMAIN
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62 | prins ns1.myserver.com
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63 | soattl 86400
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64 | refresh 10800
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65 | retry 3600
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66 | expire 604800
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67 | minttl 10800
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68 | ttl 10800
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69 | );
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70 |
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71 | # Arguably defined wholly in the db, but little reason to change without supporting code changes
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72 | our @permtypes = qw (
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73 | group_edit group_create group_delete
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74 | user_edit user_create user_delete
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75 | domain_edit domain_create domain_delete
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76 | record_edit record_create record_delete
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77 | self_edit admin
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78 | );
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79 | our $permlist = join(',',@permtypes);
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80 |
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81 | # DNS record type map and reverse map.
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82 | # loaded from the database, from http://www.iana.org/assignments/dns-parameters
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83 | our %typemap;
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84 | our %reverse_typemap;
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85 |
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86 | our %permissions;
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87 |
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88 | ##
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89 | ## Initialization and cleanup subs
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90 | ##
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91 |
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92 |
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93 | ## DNSDB::connectDB()
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94 | # Creates connection to DNS database.
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95 | # Requires the database name, username, and password.
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96 | # Returns a handle to the db.
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97 | # Set up for a PostgreSQL db; could be any transactional DBMS with the
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98 | # right changes.
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99 | sub connectDB {
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100 | $errstr = '';
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101 | my $dbname = shift;
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102 | my $user = shift;
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103 | my $pass = shift;
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104 | my $dbh;
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105 | my $DSN = "DBI:Pg:dbname=$dbname";
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106 |
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107 | my $host = shift;
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108 | $DSN .= ";host=$host" if $host;
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109 |
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110 | # Note that we want to autocommit by default, and we will turn it off locally as necessary.
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111 | # We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
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112 | $dbh = DBI->connect($DSN, $user, $pass, {
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113 | AutoCommit => 1,
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114 | PrintError => 0
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115 | })
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116 | or return (undef, $DBI::errstr) if(!$dbh);
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117 |
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118 | # Return here if we can't select. Note that this indicates a
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119 | # problem executing the select.
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120 | my $sth = $dbh->prepare("select group_id from groups limit 1");
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121 | $sth->execute();
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122 | return (undef,$DBI::errstr) if ($sth->err);
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123 |
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124 | # See if the select returned anything (or null data). This should
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125 | # succeed if the select executed, but...
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126 | $sth->fetchrow();
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127 | return (undef,$DBI::errstr) if ($sth->err);
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128 |
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129 | $sth->finish;
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130 |
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131 | # If we get here, we should be OK.
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132 | return ($dbh,"DB connection OK");
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133 | } # end connectDB
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134 |
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135 |
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136 | ## DNSDB::finish()
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137 | # Cleans up after database handles and so on.
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138 | # Requires a database handle
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139 | sub finish {
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140 | my $dbh = $_[0];
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141 | $dbh->disconnect;
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142 | } # end finish
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143 |
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144 |
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145 | ## DNSDB::initGlobals()
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146 | # Initialize global variables
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147 | # NB: this does NOT include web-specific session variables!
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148 | # Requires a database handle
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149 | sub initGlobals {
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150 | my $dbh = shift;
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151 |
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152 | # load system-wide site defaults and things from config file
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153 | if (open SYSDEFAULTS, "</etc/dnsdb.conf") {
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154 | ##fixme - error check!
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155 | while (<SYSDEFAULTS>) {
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156 | next if /^\s*#/;
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157 | $def{contact} = $1 if /contact ?= ?([a-z0-9_.-]+)/i;
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158 | $def{prins} = $1 if /prins ?= ?([a-z0-9_.-]+)/i;
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159 | $def{soattl} = $1 if /soattl ?= ?([a-z0-9_.-]+)/i;
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160 | $def{refresh} = $1 if /refresh ?= ?([a-z0-9_.-]+)/i;
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161 | $def{retry} = $1 if /retry ?= ?([a-z0-9_.-]+)/i;
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162 | $def{expire} = $1 if /expire ?= ?([a-z0-9_.-]+)/i;
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163 | $def{minttl} = $1 if /minttl ?= ?([a-z0-9_.-]+)/i;
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164 | $def{ttl} = $1 if /ttl ?= ?([a-z0-9_.-]+)/i;
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165 | ##fixme? load DB user/pass from config file?
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166 | }
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167 | }
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168 | # load from database
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169 | my $sth = $dbh->prepare("select val,name from rectypes");
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170 | $sth->execute;
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171 | while (my ($recval,$recname) = $sth->fetchrow_array()) {
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172 | $typemap{$recval} = $recname;
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173 | $reverse_typemap{$recname} = $recval;
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174 | }
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175 | } # end initGlobals
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176 |
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177 |
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178 | ## DNSDB::initPermissions()
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179 | # Set up permissions global
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180 | # Takes database handle and UID
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181 | sub initPermissions {
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182 | my $dbh = shift;
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183 | my $uid = shift;
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184 |
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185 | # %permissions = $(getPermissions($dbh,'user',$uid));
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186 | getPermissions($dbh, 'user', $uid, \%permissions);
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187 |
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188 | } # end initPermissions()
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189 |
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190 |
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191 | ## DNSDB::getPermissions()
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192 | # Get permissions from DB
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193 | # Requires DB handle, group or user flag, ID, and hashref.
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194 | sub getPermissions {
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195 | my $dbh = shift;
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196 | my $type = shift;
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197 | my $id = shift;
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198 | my $hash = shift;
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199 |
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200 | my $sql = qq(
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201 | SELECT
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202 | p.admin,p.self_edit,
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203 | p.group_create,p.group_edit,p.group_delete,
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204 | p.user_create,p.user_edit,p.user_delete,
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205 | p.domain_create,p.domain_edit,p.domain_delete,
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206 | p.record_create,p.record_edit,p.record_delete
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207 | FROM permissions p
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208 | );
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209 | if ($type eq 'group') {
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210 | $sql .= qq(
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211 | JOIN groups g ON g.permission_id=p.permission_id
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212 | WHERE g.group_id=?
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213 | );
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214 | } else {
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215 | $sql .= qq(
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216 | JOIN users u ON u.permission_id=p.permission_id
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217 | WHERE u.user_id=?
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218 | );
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219 | }
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220 |
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221 | my $sth = $dbh->prepare($sql);
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222 |
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223 | $sth->execute($id) or die "argh: ".$sth->errstr;
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224 |
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225 | # my $permref = $sth->fetchrow_hashref;
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226 | # return $permref;
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227 | # $hash = $permref;
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228 | # Eww. Need to learn how to forcibly drop a hashref onto an existing hash.
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229 | ($hash->{admin},$hash->{self_edit},
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230 | $hash->{group_create},$hash->{group_edit},$hash->{group_delete},
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231 | $hash->{user_create},$hash->{user_edit},$hash->{user_delete},
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232 | $hash->{domain_create},$hash->{domain_edit},$hash->{domain_delete},
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233 | $hash->{record_create},$hash->{record_edit},$hash->{record_delete})
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234 | = $sth->fetchrow_array;
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235 |
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236 | } # end getPermissions()
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237 |
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238 |
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239 | ## DNSDB::changePermissions()
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240 | # Update an ACL entry
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241 | # Takes a db handle, type, owner-id, and hashref for the changed permissions.
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242 | ##fixme: Must handle case of changing object's permissions from inherited to custom
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243 | sub changePermissions {
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244 | my $dbh = shift;
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245 | my $type = shift;
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246 | my $id = shift;
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247 | my $newperms = shift;
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248 |
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249 | my $failmsg = '';
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250 |
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251 | # see if we're switching from inherited to custom
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252 | my $sth = $dbh->prepare("SELECT (u.permission_id=g.permission_id) AS was_inherited,u.permission_id".
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253 | " FROM ".($type eq 'user' ? 'users' : 'groups')." u ".
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254 | " JOIN groups g ON u.".($type eq 'user' ? '' : 'parent_')."group_id=g.group_id ".
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255 | " WHERE u.".($type eq 'user' ? 'user' : 'group')."_id=?");
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256 | $sth->execute($id);
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257 |
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258 | my ($wasinherited,$permid) = $sth->fetchrow_array;
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259 |
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260 | # hack phtoui
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261 | # group id 1 is "special" in that it's it's own parent (err... possibly.)
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262 | # may make its parent id 0 which doesn't exist, and as a bonus is Perl-false.
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263 | $wasinherited = 0 if ($type eq 'group' && $id == 1);
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264 |
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265 | local $dbh->{AutoCommit} = 0;
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266 | local $dbh->{RaiseError} = 1;
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267 |
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268 | # Wrap all the SQL in a transaction
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269 | eval {
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270 | if ($wasinherited) {
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271 | ##fixme: need to add semirecursive bit to properly munge inherited permission ID on subgroups and users
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272 | $dbh->do("INSERT INTO permissions ($permlist) ".
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273 | "SELECT $permlist FROM permissions WHERE permission_id=?", undef, ($permid) );
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274 | #$sth = $dbh->prepare($sql);
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275 | #$sth->execute($permid);
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276 | $sth = $dbh->prepare("SELECT permission_id FROM ".($type eq 'user' ? 'users' : 'groups').
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277 | " WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?");
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278 | $sth->execute($id);
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279 | ($permid) = $sth->fetchrow_array;
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280 | $dbh->do("UPDATE permissions SET ".($type eq 'user' ? 'user' : 'group')."_id=? ".
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281 | "WHERE permission_id=?", undef, ($id,$permid) );
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282 | $dbh->do("UPDATE ".($type eq 'user' ? 'users' : 'groups')." SET permission_id=? ".
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283 | "WHERE ".($type eq 'user' ? 'user' : 'group')."_id=?", undef, ($permid,$id) );
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284 | }
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285 | foreach (@permtypes) {
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286 | if (defined ($newperms->{$_})) {
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287 | $dbh->do("UPDATE permissions SET $_=? WHERE permission_id=?", undef, ($newperms->{$_},$permid) );
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288 | #$sth->execute($newperms->{$_},$permid);
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289 | }
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290 | }
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291 |
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292 | $dbh->commit;
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293 | }; # end eval
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294 | if ($@) {
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295 | my $msg = $@;
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296 | eval { $dbh->rollback; };
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297 | return ('FAIL',"$failmsg: $msg");
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298 | } else {
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299 | return ('OK',$permid);
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300 | }
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301 |
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302 | } # end changePermissions()
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303 |
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304 |
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305 | ## DNSDB::comparePermissions()
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306 | # Compare two permission hashes
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307 | # Returns '>', '<', '=', '!'
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308 | sub comparePermissions {
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309 | my $p1 = shift;
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310 | my $p2 = shift;
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311 |
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312 | my $retval = '='; # assume equality until proven otherwise
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313 |
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314 | no warnings "uninitialized";
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315 |
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316 | foreach (@permtypes) {
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317 | next if $p1->{$_} == $p2->{$_}; # equal is good
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318 | if ($p1->{$_} && !$p2->{$_}) {
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319 | if ($retval eq '<') { # if we've already found an unequal pair where
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320 | $retval = '!'; # $p2 has more access, and we now find a pair
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321 | last; # where $p1 has more access, the overall access
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322 | } # is neither greater or lesser, it's unequal.
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323 | $retval = '>';
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324 | }
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325 | if (!$p1->{$_} && $p2->{$_}) {
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326 | if ($retval eq '>') { # if we've already found an unequal pair where
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327 | $retval = '!'; # $p1 has more access, and we now find a pair
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328 | last; # where $p2 has more access, the overall access
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329 | } # is neither greater or lesser, it's unequal.
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330 | $retval = '<';
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331 | }
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332 | }
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333 | return $retval;
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334 | } # end comparePermissions()
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335 |
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336 |
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337 | ## DNSDB::_log()
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338 | # Log an action
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339 | # Internal sub
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340 | # Takes a database handle, <foo>, <bar>
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341 | sub _log {
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342 | } # end _log
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343 |
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344 |
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345 | ##
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346 | ## Processing subs
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347 | ##
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348 |
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349 | ## DNSDB::addDomain()
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350 | # Add a domain
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351 | # Takes a database handle, domain name, numeric group, and boolean(ish) state (active/inactive)
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352 | # Returns a status code and message
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353 | sub addDomain {
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354 | $errstr = '';
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355 | my $dbh = shift;
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356 | return ('FAIL',"Need database handle") if !$dbh;
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357 | my $domain = shift;
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358 | return ('FAIL',"Need domain") if !defined($domain);
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359 | my $group = shift;
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360 | return ('FAIL',"Need group") if !defined($group);
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361 | my $state = shift;
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362 | return ('FAIL',"Need domain status") if !defined($state);
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363 |
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364 | my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
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365 | my $dom_id;
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366 |
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367 | # quick check to start to see if we've already got one
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368 | $sth->execute($domain);
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369 | ($dom_id) = $sth->fetchrow_array;
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370 |
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371 | return ('FAIL', "Domain already exists") if $dom_id;
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372 |
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373 | # Allow transactions, and raise an exception on errors so we can catch it later.
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374 | # Use local to make sure these get "reset" properly on exiting this block
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375 | local $dbh->{AutoCommit} = 0;
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376 | local $dbh->{RaiseError} = 1;
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377 |
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378 | # Wrap all the SQL in a transaction
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379 | eval {
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380 | # insert the domain...
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381 | my $sth = $dbh->prepare("insert into domains (domain,group_id,status) values (?,?,?)");
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382 | $sth->execute($domain,$group,$state);
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383 |
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384 | # get the ID...
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385 | $sth = $dbh->prepare("select domain_id from domains where domain='$domain'");
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386 | $sth->execute;
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387 | ($dom_id) = $sth->fetchrow_array();
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388 |
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389 | # ... and now we construct the standard records from the default set. NB: group should be variable.
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390 | $sth = $dbh->prepare("select host,type,val,distance,weight,port,ttl from default_records where group_id=$group");
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391 | my $sth_in = $dbh->prepare("insert into records (domain_id,host,type,val,distance,weight,port,ttl)".
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392 | " values ($dom_id,?,?,?,?,?,?,?)");
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393 | $sth->execute;
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394 | while (my ($host,$type,$val,$dist,$weight,$port,$ttl) = $sth->fetchrow_array()) {
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395 | $host =~ s/DOMAIN/$domain/g;
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396 | $val =~ s/DOMAIN/$domain/g;
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397 | $sth_in->execute($host,$type,$val,$dist,$weight,$port,$ttl);
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398 | }
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399 |
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400 | # once we get here, we should have suceeded.
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401 | $dbh->commit;
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402 | }; # end eval
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403 |
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404 | if ($@) {
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405 | my $msg = $@;
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406 | eval { $dbh->rollback; };
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407 | return ('FAIL',$msg);
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408 | } else {
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409 | return ('OK',$dom_id);
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410 | }
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411 | } # end addDomain
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412 |
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413 |
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414 | ## DNSDB::delDomain()
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415 | # Delete a domain.
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416 | # for now, just delete the records, then the domain.
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417 | # later we may want to archive it in some way instead (status code 2, for example?)
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418 | sub delDomain {
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419 | my $dbh = shift;
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420 | my $domid = shift;
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421 |
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422 | # Allow transactions, and raise an exception on errors so we can catch it later.
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423 | # Use local to make sure these get "reset" properly on exiting this block
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424 | local $dbh->{AutoCommit} = 0;
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425 | local $dbh->{RaiseError} = 1;
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426 |
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427 | my $failmsg = '';
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428 |
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429 | # Wrap all the SQL in a transaction
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430 | eval {
|
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431 | my $sth = $dbh->prepare("delete from records where domain_id=?");
|
---|
432 | $failmsg = "Failure removing domain records";
|
---|
433 | $sth->execute($domid);
|
---|
434 | $sth = $dbh->prepare("delete from domains where domain_id=?");
|
---|
435 | $failmsg = "Failure removing domain";
|
---|
436 | $sth->execute($domid);
|
---|
437 |
|
---|
438 | # once we get here, we should have suceeded.
|
---|
439 | $dbh->commit;
|
---|
440 | }; # end eval
|
---|
441 |
|
---|
442 | if ($@) {
|
---|
443 | my $msg = $@;
|
---|
444 | eval { $dbh->rollback; };
|
---|
445 | return ('FAIL',"$failmsg: $msg");
|
---|
446 | } else {
|
---|
447 | return ('OK','OK');
|
---|
448 | }
|
---|
449 |
|
---|
450 | } # end delDomain()
|
---|
451 |
|
---|
452 |
|
---|
453 | ## DNSDB::domainName()
|
---|
454 | # Return the domain name based on a domain ID
|
---|
455 | # Takes a database handle and the domain ID
|
---|
456 | # Returns the domain name or undef on failure
|
---|
457 | sub domainName {
|
---|
458 | $errstr = '';
|
---|
459 | my $dbh = shift;
|
---|
460 | my $domid = shift;
|
---|
461 | my $sth = $dbh->prepare("select domain from domains where domain_id=?");
|
---|
462 | $sth->execute($domid);
|
---|
463 | my ($domname) = $sth->fetchrow_array();
|
---|
464 | $errstr = $DBI::errstr if !$domname;
|
---|
465 | return $domname if $domname;
|
---|
466 | } # end domainName
|
---|
467 |
|
---|
468 |
|
---|
469 | ## DNSDB::addGroup()
|
---|
470 | # Add a group
|
---|
471 | # Takes a database handle, group name, parent group, hashref for permissions,
|
---|
472 | # and optional template-vs-cloneme flag
|
---|
473 | # Returns a status code and message
|
---|
474 | sub addGroup {
|
---|
475 | $errstr = '';
|
---|
476 | my $dbh = shift;
|
---|
477 | my $groupname = shift;
|
---|
478 | my $pargroup = shift;
|
---|
479 | my $permissions = shift;
|
---|
480 |
|
---|
481 | # 0 indicates "custom", hardcoded.
|
---|
482 | # Any other value clones that group's default records, if it exists.
|
---|
483 | my $inherit = shift || 0;
|
---|
484 | ##fixme: need a flag to indicate clone records or <?> ?
|
---|
485 |
|
---|
486 | # Allow transactions, and raise an exception on errors so we can catch it later.
|
---|
487 | # Use local to make sure these get "reset" properly on exiting this block
|
---|
488 | local $dbh->{AutoCommit} = 0;
|
---|
489 | local $dbh->{RaiseError} = 1;
|
---|
490 |
|
---|
491 | my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
|
---|
492 | my $group_id;
|
---|
493 |
|
---|
494 | # quick check to start to see if we've already got one
|
---|
495 | $sth->execute($groupname);
|
---|
496 | ($group_id) = $sth->fetchrow_array;
|
---|
497 |
|
---|
498 | return ('FAIL', "Group already exists") if $group_id;
|
---|
499 |
|
---|
500 | # Wrap all the SQL in a transaction
|
---|
501 | eval {
|
---|
502 | $sth = $dbh->prepare("INSERT INTO groups (parent_group_id,group_name) VALUES (?,?)");
|
---|
503 | $sth->execute($pargroup,$groupname);
|
---|
504 |
|
---|
505 | $sth = $dbh->prepare("SELECT group_id FROM groups WHERE group_name=?");
|
---|
506 | $sth->execute($groupname);
|
---|
507 | my ($groupid) = $sth->fetchrow_array();
|
---|
508 |
|
---|
509 | # Permissions
|
---|
510 | if ($inherit) {
|
---|
511 | } else {
|
---|
512 | my @permvals;
|
---|
513 | foreach (@permtypes) {
|
---|
514 | if (!defined ($permissions->{$_})) {
|
---|
515 | push @permvals, 0;
|
---|
516 | } else {
|
---|
517 | push @permvals, $permissions->{$_};
|
---|
518 | }
|
---|
519 | }
|
---|
520 |
|
---|
521 | $sth = $dbh->prepare("INSERT INTO permissions (group_id,$permlist) values (?".',?'x($#permtypes+1).")");
|
---|
522 | $sth->execute($groupid,@permvals);
|
---|
523 |
|
---|
524 | $sth = $dbh->prepare("SELECT permission_id FROM permissions WHERE group_id=?");
|
---|
525 | $sth->execute($groupid);
|
---|
526 | my ($permid) = $sth->fetchrow_array();
|
---|
527 |
|
---|
528 | $dbh->do("UPDATE groups SET permission_id=$permid WHERE group_id=$groupid");
|
---|
529 | } # done permission fiddling
|
---|
530 |
|
---|
531 | # Default records
|
---|
532 | $sth = $dbh->prepare("INSERT INTO default_records (group_id,host,type,val,distance,weight,port,ttl) ".
|
---|
533 | "VALUES ($groupid,?,?,?,?,?,?,?)");
|
---|
534 | if ($inherit) {
|
---|
535 | ##fixme: fixme!
|
---|
536 | my $sth2 = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl FROM default_records WHERE group_id=?");
|
---|
537 | while (my @clonedata = $sth2->fetchrow_array) {
|
---|
538 | $sth->execute(@clonedata);
|
---|
539 | }
|
---|
540 | } else {
|
---|
541 | ##fixme: Hardcoding is Bad, mmmmkaaaay?
|
---|
542 | # reasonable basic defaults for SOA, MX, NS, and minimal hosting
|
---|
543 | # could load from a config file, but somewhere along the line we need hardcoded bits.
|
---|
544 | $sth->execute('ns1.example.com:hostmaster.example.com', 6, '10800:3600:604800:10800', 0, 0, 0, 86400);
|
---|
545 | $sth->execute('DOMAIN', 1, '192.168.4.2', 0, 0, 0, 7200);
|
---|
546 | $sth->execute('DOMAIN', 15, 'mx.example.com', 10, 0, 0, 7200);
|
---|
547 | $sth->execute('DOMAIN', 2, 'ns1.example.com', 0, 0, 0, 7200);
|
---|
548 | $sth->execute('DOMAIN', 2, 'ns2.example.com', 0, 0, 0, 7200);
|
---|
549 | $sth->execute('www.DOMAIN', 5, 'DOMAIN', 0, 0, 0, 7200);
|
---|
550 | }
|
---|
551 |
|
---|
552 | # once we get here, we should have suceeded.
|
---|
553 | $dbh->commit;
|
---|
554 | }; # end eval
|
---|
555 |
|
---|
556 | if ($@) {
|
---|
557 | my $msg = $@;
|
---|
558 | eval { $dbh->rollback; };
|
---|
559 | return ('FAIL',$msg);
|
---|
560 | } else {
|
---|
561 | return ('OK','OK');
|
---|
562 | }
|
---|
563 |
|
---|
564 | } # end addGroup()
|
---|
565 |
|
---|
566 |
|
---|
567 | ## DNSDB::delGroup()
|
---|
568 | # Delete a group.
|
---|
569 | # Takes a group ID
|
---|
570 | # Returns a status code and message
|
---|
571 | sub delGroup {
|
---|
572 | my $dbh = shift;
|
---|
573 | my $groupid = shift;
|
---|
574 |
|
---|
575 | # Allow transactions, and raise an exception on errors so we can catch it later.
|
---|
576 | # Use local to make sure these get "reset" properly on exiting this block
|
---|
577 | local $dbh->{AutoCommit} = 0;
|
---|
578 | local $dbh->{RaiseError} = 1;
|
---|
579 |
|
---|
580 | ##fixme: locate "knowable" error conditions and deal with them before the eval
|
---|
581 | # ... or inside, whatever.
|
---|
582 | # -> domains still exist in group
|
---|
583 | # -> ...
|
---|
584 | my $failmsg = '';
|
---|
585 |
|
---|
586 | # Wrap all the SQL in a transaction
|
---|
587 | eval {
|
---|
588 | my $sth = $dbh->prepare("SELECT count(*) FROM domains WHERE group_id=?");
|
---|
589 | $sth->execute($groupid);
|
---|
590 | my ($domcnt) = $sth->fetchrow_array;
|
---|
591 | $failmsg = "Can't remove group ".groupName($dbh,$groupid);
|
---|
592 | die "$domcnt domains still in group\n" if $domcnt;
|
---|
593 |
|
---|
594 | $sth = $dbh->prepare("delete from default_records where group_id=?");
|
---|
595 | $failmsg = "Failed to delete default records for ".groupName($dbh,$groupid);
|
---|
596 | $sth->execute($groupid);
|
---|
597 | $sth = $dbh->prepare("delete from groups where group_id=?");
|
---|
598 | $failmsg = "Failed to remove group ".groupName($dbh,$groupid);
|
---|
599 | $sth->execute($groupid);
|
---|
600 |
|
---|
601 | # once we get here, we should have suceeded.
|
---|
602 | $dbh->commit;
|
---|
603 | }; # end eval
|
---|
604 |
|
---|
605 | if ($@) {
|
---|
606 | my $msg = $@;
|
---|
607 | eval { $dbh->rollback; };
|
---|
608 | return ('FAIL',"$failmsg: $msg");
|
---|
609 | } else {
|
---|
610 | return ('OK','OK');
|
---|
611 | }
|
---|
612 | } # end delGroup()
|
---|
613 |
|
---|
614 |
|
---|
615 | ## DNSDB::getChildren()
|
---|
616 | # Get a list of all groups whose parent^n is group <n>
|
---|
617 | # Takes a database handle, group ID, reference to an array to put the group IDs in,
|
---|
618 | # and an optional flag to return only immediate children or all children-of-children
|
---|
619 | # default to returning all children
|
---|
620 | # Calls itself
|
---|
621 | sub getChildren {
|
---|
622 | $errstr = '';
|
---|
623 | my $dbh = shift;
|
---|
624 | my $rootgroup = shift;
|
---|
625 | my $groupdest = shift;
|
---|
626 | my $immed = shift || 'all';
|
---|
627 |
|
---|
628 | # special break for default group; otherwise we get stuck.
|
---|
629 | if ($rootgroup == 1) {
|
---|
630 | # by definition, group 1 is the Root Of All Groups
|
---|
631 | my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE NOT (group_id=1)".
|
---|
632 | ($immed ne 'all' ? " AND parent_group_id=1" : ''));
|
---|
633 | $sth->execute;
|
---|
634 | while (my @this = $sth->fetchrow_array) {
|
---|
635 | push @$groupdest, @this;
|
---|
636 | }
|
---|
637 | } else {
|
---|
638 | my $sth = $dbh->prepare("SELECT group_id FROM groups WHERE parent_group_id=?");
|
---|
639 | $sth->execute($rootgroup);
|
---|
640 | return if $sth->rows == 0;
|
---|
641 | my @grouplist;
|
---|
642 | while (my ($group) = $sth->fetchrow_array) {
|
---|
643 | push @$groupdest, $group;
|
---|
644 | getChildren($dbh,$group,$groupdest) if $immed eq 'all';
|
---|
645 | }
|
---|
646 | }
|
---|
647 | } # end getChildren()
|
---|
648 |
|
---|
649 |
|
---|
650 | ## DNSDB::groupName()
|
---|
651 | # Return the group name based on a group ID
|
---|
652 | # Takes a database handle and the group ID
|
---|
653 | # Returns the group name or undef on failure
|
---|
654 | sub groupName {
|
---|
655 | $errstr = '';
|
---|
656 | my $dbh = shift;
|
---|
657 | my $groupid = shift;
|
---|
658 | my $sth = $dbh->prepare("SELECT group_name FROM groups WHERE group_id=?");
|
---|
659 | $sth->execute($groupid);
|
---|
660 | my ($groupname) = $sth->fetchrow_array();
|
---|
661 | $errstr = $DBI::errstr if !$groupname;
|
---|
662 | return $groupname if $groupname;
|
---|
663 | } # end groupName
|
---|
664 |
|
---|
665 |
|
---|
666 | ## DNSDB::addUser()
|
---|
667 | #
|
---|
668 | sub addUser {
|
---|
669 | $errstr = '';
|
---|
670 | my $dbh = shift;
|
---|
671 | return ('FAIL',"Need database handle") if !$dbh;
|
---|
672 | my $username = shift;
|
---|
673 | return ('FAIL',"Missing username") if !defined($username);
|
---|
674 | my $group = shift;
|
---|
675 | return ('FAIL',"Missing group") if !defined($group);
|
---|
676 | my $pass = shift;
|
---|
677 | return ('FAIL',"Missing password") if !defined($pass);
|
---|
678 | my $state = shift;
|
---|
679 | return ('FAIL',"Need account status") if !defined($state);
|
---|
680 |
|
---|
681 | my $type = shift || 'u'; # create limited users by default - fwiw, not sure yet how this will interact with ACLs
|
---|
682 |
|
---|
683 | my $permstring = shift || 'i'; # default is to inhert permissions from group
|
---|
684 |
|
---|
685 | my $fname = shift || $username;
|
---|
686 | my $lname = shift || '';
|
---|
687 | my $phone = shift || ''; # not going format-check
|
---|
688 |
|
---|
689 | my $sth = $dbh->prepare("SELECT user_id FROM users WHERE username=?");
|
---|
690 | my $user_id;
|
---|
691 |
|
---|
692 | # quick check to start to see if we've already got one
|
---|
693 | $sth->execute($username);
|
---|
694 | ($user_id) = $sth->fetchrow_array;
|
---|
695 |
|
---|
696 | return ('FAIL', "User already exists") if $user_id;
|
---|
697 |
|
---|
698 | # Allow transactions, and raise an exception on errors so we can catch it later.
|
---|
699 | # Use local to make sure these get "reset" properly on exiting this block
|
---|
700 | local $dbh->{AutoCommit} = 0;
|
---|
701 | local $dbh->{RaiseError} = 1;
|
---|
702 |
|
---|
703 | # Wrap all the SQL in a transaction
|
---|
704 | eval {
|
---|
705 | # insert the user...
|
---|
706 | my $sth = $dbh->prepare("INSERT INTO users (group_id,username,password,firstname,lastname,phone,type,status) ".
|
---|
707 | "VALUES (?,?,?,?,?,?,?,?)");
|
---|
708 | $sth->execute($group,$username,unix_md5_crypt($pass),$fname,$lname,$phone,$type,$state);
|
---|
709 |
|
---|
710 | # get the ID...
|
---|
711 | $sth = $dbh->prepare("select user_id from users where username=?");
|
---|
712 | $sth->execute($username);
|
---|
713 | ($user_id) = $sth->fetchrow_array();
|
---|
714 |
|
---|
715 | ##fixme: add another table to hold name/email for log table?
|
---|
716 | die "dying horribly\n";
|
---|
717 |
|
---|
718 | # once we get here, we should have suceeded.
|
---|
719 | $dbh->commit;
|
---|
720 | }; # end eval
|
---|
721 |
|
---|
722 | if ($@) {
|
---|
723 | my $msg = $@;
|
---|
724 | eval { $dbh->rollback; };
|
---|
725 | return ('FAIL',$msg);
|
---|
726 | } else {
|
---|
727 | return ('OK',$user_id);
|
---|
728 | }
|
---|
729 | } # end addUser
|
---|
730 |
|
---|
731 |
|
---|
732 | ## DNSDB::checkUser()
|
---|
733 | # Check user/pass combo on login
|
---|
734 | sub checkUser {
|
---|
735 | my $dbh = shift;
|
---|
736 | my $user = shift;
|
---|
737 | my $inpass = shift;
|
---|
738 |
|
---|
739 | my $sth = $dbh->prepare("SELECT user_id,group_id,password,firstname,lastname FROM users WHERE username=?");
|
---|
740 | $sth->execute($user);
|
---|
741 | my ($uid,$gid,$pass,$fname,$lname) = $sth->fetchrow_array;
|
---|
742 | my $loginfailed = 1 if !defined($uid);
|
---|
743 |
|
---|
744 | if ($pass =~ m|^\$1\$([A-Za-z0-9/.]+)\$|) {
|
---|
745 | $loginfailed = 1 if $pass ne unix_md5_crypt($inpass,$1);
|
---|
746 | } else {
|
---|
747 | $loginfailed = 1 if $pass ne $inpass;
|
---|
748 | }
|
---|
749 |
|
---|
750 | # nnnngggg
|
---|
751 | return ($uid, $gid);
|
---|
752 | } # end checkUser
|
---|
753 |
|
---|
754 |
|
---|
755 | ## DNSDB:: updateUser()
|
---|
756 | #
|
---|
757 | sub updateUser {
|
---|
758 | my $dbh = shift;
|
---|
759 | my $uid = shift;
|
---|
760 | my $username = shift;
|
---|
761 | my $group = shift;
|
---|
762 | my $pass = shift;
|
---|
763 | my $state = shift;
|
---|
764 | my $type = shift;
|
---|
765 | my $fname = shift || $username;
|
---|
766 | my $lname = shift || '';
|
---|
767 | my $phone = shift || ''; # not going format-check
|
---|
768 |
|
---|
769 | my $failmsg = '';
|
---|
770 |
|
---|
771 | # Allow transactions, and raise an exception on errors so we can catch it later.
|
---|
772 | # Use local to make sure these get "reset" properly on exiting this block
|
---|
773 | local $dbh->{AutoCommit} = 0;
|
---|
774 | local $dbh->{RaiseError} = 1;
|
---|
775 |
|
---|
776 | my $sth;
|
---|
777 |
|
---|
778 | # Password can be left blank; if so we assume there's one on file.
|
---|
779 | # Actual blank passwords are bad, mm'kay?
|
---|
780 | if (!$pass) {
|
---|
781 | $sth = $dbh->prepare("SELECT password FROM users WHERE user_id=?");
|
---|
782 | $sth->execute($uid);
|
---|
783 | ($pass) = $sth->fetchrow_array;
|
---|
784 | } else {
|
---|
785 | $pass = unix_md5_crypt($pass);
|
---|
786 | }
|
---|
787 |
|
---|
788 | eval {
|
---|
789 | my $sth = $dbh->prepare(q(
|
---|
790 | UPDATE users
|
---|
791 | SET username=?, password=?, firstname=?, lastname=?, phone=?, type=?, status=?
|
---|
792 | WHERE user_id=?
|
---|
793 | )
|
---|
794 | );
|
---|
795 | $sth->execute($username, $pass, $fname, $lname, $phone, $type, $state, $uid);
|
---|
796 | $dbh->commit;
|
---|
797 | };
|
---|
798 | if ($@) {
|
---|
799 | my $msg = $@;
|
---|
800 | eval { $dbh->rollback; };
|
---|
801 | return ('FAIL',"$failmsg: $msg");
|
---|
802 | } else {
|
---|
803 | return ('OK','OK');
|
---|
804 | }
|
---|
805 | } # end updateUser()
|
---|
806 |
|
---|
807 |
|
---|
808 | ## DNSDB::delUser()
|
---|
809 | #
|
---|
810 | sub delUser {
|
---|
811 | my $dbh = shift;
|
---|
812 | return ('FAIL',"Need database handle") if !$dbh;
|
---|
813 | my $userid = shift;
|
---|
814 | return ('FAIL',"Missing userid") if !defined($userid);
|
---|
815 |
|
---|
816 | my $sth = $dbh->prepare("delete from users where user_id=?");
|
---|
817 | $sth->execute($userid);
|
---|
818 |
|
---|
819 | return ('FAIL',"Couldn't remove user: ".$sth->errstr) if $sth->err;
|
---|
820 |
|
---|
821 | return ('OK','OK');
|
---|
822 |
|
---|
823 | } # end delUser
|
---|
824 |
|
---|
825 |
|
---|
826 | ## DNSDB::userFullName()
|
---|
827 | # Return a pretty string!
|
---|
828 | # Takes a user_id and optional printf-ish string to indicate which pieces where:
|
---|
829 | # %u for the username
|
---|
830 | # %f for the first name
|
---|
831 | # %l for the last name
|
---|
832 | # All other text in the passed string will be left as-is.
|
---|
833 | ##fixme: need a "smart" option too, so that missing/null/blank first/last names don't give funky output
|
---|
834 | sub userFullName {
|
---|
835 | $errstr = '';
|
---|
836 | my $dbh = shift;
|
---|
837 | my $userid = shift;
|
---|
838 | my $fullformat = shift || '%f %l (%u)';
|
---|
839 | my $sth = $dbh->prepare("select username,firstname,lastname from users where user_id=?");
|
---|
840 | $sth->execute($userid);
|
---|
841 | my ($uname,$fname,$lname) = $sth->fetchrow_array();
|
---|
842 | $errstr = $DBI::errstr if !$uname;
|
---|
843 |
|
---|
844 | $fullformat =~ s/\%u/$uname/g;
|
---|
845 | $fullformat =~ s/\%f/$fname/g;
|
---|
846 | $fullformat =~ s/\%l/$lname/g;
|
---|
847 |
|
---|
848 | return $fullformat;
|
---|
849 | } # end userFullName
|
---|
850 |
|
---|
851 |
|
---|
852 | ## DNSDB::userStatus()
|
---|
853 | # Sets and/or returns a user's status
|
---|
854 | # Takes a database handle, user ID and optionally a status argument
|
---|
855 | # Returns undef on errors.
|
---|
856 | sub userStatus {
|
---|
857 | my $dbh = shift;
|
---|
858 | my $id = shift;
|
---|
859 | my $newstatus = shift;
|
---|
860 |
|
---|
861 | return undef if $id !~ /^\d+$/;
|
---|
862 |
|
---|
863 | my $sth;
|
---|
864 |
|
---|
865 | # ooo, fun! let's see what we were passed for status
|
---|
866 | if ($newstatus) {
|
---|
867 | $sth = $dbh->prepare("update users set status=? where user_id=?");
|
---|
868 | # ass-u-me caller knows what's going on in full
|
---|
869 | if ($newstatus =~ /^[01]$/) { # only two valid for now.
|
---|
870 | $sth->execute($newstatus,$id);
|
---|
871 | } elsif ($newstatus =~ /^usero(?:n|ff)$/) {
|
---|
872 | $sth->execute(($newstatus eq 'useron' ? 1 : 0),$id);
|
---|
873 | }
|
---|
874 | }
|
---|
875 |
|
---|
876 | $sth = $dbh->prepare("select status from users where user_id=?");
|
---|
877 | $sth->execute($id);
|
---|
878 | my ($status) = $sth->fetchrow_array;
|
---|
879 | return $status;
|
---|
880 | } # end userStatus()
|
---|
881 |
|
---|
882 |
|
---|
883 | ## DNSDB::getUserData()
|
---|
884 | # Get misc user data for display
|
---|
885 | sub getUserData {
|
---|
886 | my $dbh = shift;
|
---|
887 | my $uid = shift;
|
---|
888 |
|
---|
889 | my $sth = $dbh->prepare("SELECT group_id,username,firstname,lastname,phone,type,status,inherit_perm ".
|
---|
890 | "FROM users WHERE user_id=?");
|
---|
891 | $sth->execute($uid);
|
---|
892 | return $sth->fetchrow_hashref();
|
---|
893 |
|
---|
894 | } # end getUserData()
|
---|
895 |
|
---|
896 |
|
---|
897 | ## DNSDB::editRecord()
|
---|
898 | # Change an existing record
|
---|
899 | # Takes a database handle, default/live flag, record ID, and new data and updates the data fields for it
|
---|
900 | sub editRecord {
|
---|
901 | $errstr = '';
|
---|
902 | my $dbh = shift;
|
---|
903 | my $defflag = shift;
|
---|
904 | my $recid = shift;
|
---|
905 | my $host = shift;
|
---|
906 | my $address = shift;
|
---|
907 | my $distance = shift;
|
---|
908 | my $weight = shift;
|
---|
909 | my $port = shift;
|
---|
910 | my $ttl = shift;
|
---|
911 | }
|
---|
912 |
|
---|
913 |
|
---|
914 | ## DNSDB::getSOA()
|
---|
915 | # Return all suitable fields from an SOA record in separate elements of a hash
|
---|
916 | # Takes a database handle, default/live flag, and group (default) or domain (live) ID
|
---|
917 | sub getSOA {
|
---|
918 | $errstr = '';
|
---|
919 | my $dbh = shift;
|
---|
920 | my $def = shift;
|
---|
921 | my $id = shift;
|
---|
922 | my %ret;
|
---|
923 |
|
---|
924 | my $sql = "select record_id,host,val,ttl from";
|
---|
925 | if ($def eq 'def' or $def eq 'y') {
|
---|
926 | $sql .= " default_records where group_id=$id and type=$reverse_typemap{SOA}";
|
---|
927 | } else {
|
---|
928 | # we're editing a live SOA record; find based on domain
|
---|
929 | $sql .= " records where domain_id=$id and type=$reverse_typemap{SOA}";
|
---|
930 | }
|
---|
931 | my $sth = $dbh->prepare($sql);
|
---|
932 | $sth->execute;
|
---|
933 |
|
---|
934 | my ($recid,$host,$val,$ttl) = $sth->fetchrow_array();
|
---|
935 | my ($prins,$contact) = split /:/, $host;
|
---|
936 | my ($refresh,$retry,$expire,$minttl) = split /:/, $val;
|
---|
937 |
|
---|
938 | $ret{recid} = $recid;
|
---|
939 | $ret{ttl} = $ttl;
|
---|
940 | $ret{prins} = $prins;
|
---|
941 | $ret{contact} = $contact;
|
---|
942 | $ret{refresh} = $refresh;
|
---|
943 | $ret{retry} = $retry;
|
---|
944 | $ret{expire} = $expire;
|
---|
945 | $ret{minttl} = $minttl;
|
---|
946 |
|
---|
947 | return %ret;
|
---|
948 | } # end getSOA()
|
---|
949 |
|
---|
950 |
|
---|
951 | ## DNSDB::getRecLine()
|
---|
952 | # Return all data fields for a zone record in separate elements of a hash
|
---|
953 | # Takes a database handle, default/live flag, and record ID
|
---|
954 | sub getRecLine {
|
---|
955 | $errstr = '';
|
---|
956 | my $dbh = shift;
|
---|
957 | my $def = shift;
|
---|
958 | my $id = shift;
|
---|
959 |
|
---|
960 | my $sql = "SELECT record_id,host,type,val,distance,weight,port,ttl".
|
---|
961 | (($def eq 'def' or $def eq 'y') ? ',group_id FROM default_' : ',domain_id FROM ').
|
---|
962 | "records WHERE record_id=?";
|
---|
963 | my $sth = $dbh->prepare($sql);
|
---|
964 | $sth->execute($id);
|
---|
965 |
|
---|
966 | my ($recid,$host,$rtype,$val,$distance,$weight,$port,$ttl,$parid) = $sth->fetchrow_array();
|
---|
967 |
|
---|
968 | if ($sth->err) {
|
---|
969 | $errstr = $DBI::errstr;
|
---|
970 | return undef;
|
---|
971 | }
|
---|
972 | my %ret;
|
---|
973 | $ret{recid} = $recid;
|
---|
974 | $ret{host} = $host;
|
---|
975 | $ret{type} = $rtype;
|
---|
976 | $ret{val} = $val;
|
---|
977 | $ret{distance}= $distance;
|
---|
978 | $ret{weight} = $weight;
|
---|
979 | $ret{port} = $port;
|
---|
980 | $ret{ttl} = $ttl;
|
---|
981 | $ret{parid} = $parid;
|
---|
982 |
|
---|
983 | return %ret;
|
---|
984 | }
|
---|
985 |
|
---|
986 |
|
---|
987 | ##fixme: should use above (getRecLine()) to get lines for below?
|
---|
988 | ## DNSDB::getDomRecs()
|
---|
989 | # Return records for a domain
|
---|
990 | # Takes a database handle, default/live flag, group/domain ID, start,
|
---|
991 | # number of records, sort field, and sort order
|
---|
992 | # Returns a reference to an array of hashes
|
---|
993 | sub getDomRecs {
|
---|
994 | $errstr = '';
|
---|
995 | my $dbh = shift;
|
---|
996 | my $type = shift;
|
---|
997 | my $id = shift;
|
---|
998 | my $nrecs = shift || 'all';
|
---|
999 | my $nstart = shift || 0;
|
---|
1000 |
|
---|
1001 | ## for order, need to map input to column names
|
---|
1002 | my $order = shift || 'host';
|
---|
1003 | my $direction = shift || 'ASC';
|
---|
1004 |
|
---|
1005 | my $sql = "SELECT record_id,host,type,val,distance,weight,port,ttl FROM ";
|
---|
1006 | if ($type eq 'def' or $type eq 'y') {
|
---|
1007 | $sql .= " default_records where group_id=$id";
|
---|
1008 | } else {
|
---|
1009 | $sql .= " records where domain_id=$id";
|
---|
1010 | }
|
---|
1011 | $sql .= " and not type=$reverse_typemap{SOA} order by $order $direction";
|
---|
1012 | ##fixme: need to set nstart properly (offset is not internally multiplied with limit)
|
---|
1013 | $sql .= " limit $nrecs offset ".($nstart*$nrecs) if $nstart ne 'all';
|
---|
1014 |
|
---|
1015 | my $sth = $dbh->prepare($sql);
|
---|
1016 | $sth->execute;
|
---|
1017 |
|
---|
1018 | my @retbase;
|
---|
1019 | while (my $ref = $sth->fetchrow_hashref()) {
|
---|
1020 | push @retbase, $ref;
|
---|
1021 | }
|
---|
1022 |
|
---|
1023 | my $ret = \@retbase;
|
---|
1024 | return $ret;
|
---|
1025 | } # end getDomRecs()
|
---|
1026 |
|
---|
1027 |
|
---|
1028 | ## DNSDB::addRec()
|
---|
1029 | # Add a new record to a domain or a group's default records
|
---|
1030 | # Takes a database handle, default/live flag, group/domain ID,
|
---|
1031 | # host, type, value, and TTL
|
---|
1032 | # Some types require additional detail: "distance" for MX and SRV,
|
---|
1033 | # and weight/port for SRV
|
---|
1034 | # Returns a status code and detail message in case of error
|
---|
1035 | sub addRec {
|
---|
1036 | $errstr = '';
|
---|
1037 | my $dbh = shift;
|
---|
1038 | my $defrec = shift;
|
---|
1039 | my $id = shift;
|
---|
1040 |
|
---|
1041 | my $host = shift;
|
---|
1042 | my $rectype = shift;
|
---|
1043 | my $val = shift;
|
---|
1044 | my $ttl = shift;
|
---|
1045 |
|
---|
1046 | my $fields = ($defrec eq 'y' ? 'group_id' : 'domain_id').",host,type,val,ttl";
|
---|
1047 | my $vallen = "?,?,?,?,?";
|
---|
1048 | my @vallist = ($id,$host,$rectype,$val,$ttl);
|
---|
1049 |
|
---|
1050 | my $dist;
|
---|
1051 | if ($rectype == $reverse_typemap{MX} or $rectype == $reverse_typemap{SRV}) {
|
---|
1052 | $dist = shift;
|
---|
1053 | return ('FAIL',"Need distance for $typemap{$rectype} record") if !defined($dist);
|
---|
1054 | $fields .= ",distance";
|
---|
1055 | $vallen .= ",?";
|
---|
1056 | push @vallist, $dist;
|
---|
1057 | }
|
---|
1058 | my $weight;
|
---|
1059 | my $port;
|
---|
1060 | if ($rectype == $reverse_typemap{SRV}) {
|
---|
1061 | # check for _service._protocol. NB: RFC2782 does not say "MUST"... nor "SHOULD"...
|
---|
1062 | # it just says (paraphrased) "... is prepended with _ to prevent DNS collisions"
|
---|
1063 | return ('FAIL',"SRV records must begin with _service._protocol")
|
---|
1064 | if $host !~ /^_[A-Za-z]+\._[A-Za-z]+\.[a-z0-9-]+/;
|
---|
1065 | $weight = shift;
|
---|
1066 | $port = shift;
|
---|
1067 | return ('FAIL',"Need weight and port for SRV record") if !defined($weight) or !defined($port);
|
---|
1068 | $fields .= ",weight,port";
|
---|
1069 | $vallen .= ",?,?";
|
---|
1070 | push @vallist, ($weight,$port);
|
---|
1071 | }
|
---|
1072 |
|
---|
1073 | my $sql = "insert into ".($defrec eq 'y' ? 'default_' : '')."records ($fields) values ($vallen)";
|
---|
1074 | ##fixme: use array for values, replace "vallist" with series of ?,?,? etc
|
---|
1075 | # something is bugging me about this...
|
---|
1076 | #warn "DEBUG: $sql";
|
---|
1077 | my $sth = $dbh->prepare($sql);
|
---|
1078 | $sth->execute(@vallist);
|
---|
1079 |
|
---|
1080 | return ('FAIL',$sth->errstr) if $sth->err;
|
---|
1081 |
|
---|
1082 | return ('OK','OK');
|
---|
1083 | } # end addRec()
|
---|
1084 |
|
---|
1085 |
|
---|
1086 | ## DNSDB::updateRec()
|
---|
1087 | # Update a record
|
---|
1088 | sub updateRec {
|
---|
1089 | $errstr = '';
|
---|
1090 |
|
---|
1091 | my $dbh = shift;
|
---|
1092 | my $defrec = shift;
|
---|
1093 | my $id = shift;
|
---|
1094 |
|
---|
1095 | # all records have these
|
---|
1096 | my $host = shift;
|
---|
1097 | my $type = shift;
|
---|
1098 | my $val = shift;
|
---|
1099 | my $ttl = shift;
|
---|
1100 |
|
---|
1101 | return('FAIL',"Missing standard argument(s)") if !defined($ttl);
|
---|
1102 |
|
---|
1103 | # only MX and SRV will use these
|
---|
1104 | my $dist = 0;
|
---|
1105 | my $weight = 0;
|
---|
1106 | my $port = 0;
|
---|
1107 |
|
---|
1108 | if ($type == $reverse_typemap{MX} || $type == $reverse_typemap{SRV}) {
|
---|
1109 | $dist = shift;
|
---|
1110 | return ('FAIL',"MX or SRV requires distance") if !defined($dist);
|
---|
1111 | if ($type == $reverse_typemap{SRV}) {
|
---|
1112 | $weight = shift;
|
---|
1113 | return ('FAIL',"SRV requires weight") if !defined($weight);
|
---|
1114 | $port = shift;
|
---|
1115 | return ('FAIL',"SRV requires port") if !defined($port);
|
---|
1116 | }
|
---|
1117 | }
|
---|
1118 |
|
---|
1119 | my $sth = $dbh->prepare("UPDATE ".($defrec eq 'y' ? 'default_' : '')."records ".
|
---|
1120 | "SET host=?,type=?,val=?,ttl=?,distance=?,weight=?,port=? ".
|
---|
1121 | "WHERE record_id=?");
|
---|
1122 | $sth->execute($host,$type,$val,$ttl,$dist,$weight,$port,$id);
|
---|
1123 |
|
---|
1124 | return ('FAIL',$sth->errstr."<br>\n$errstr<br>\n") if $sth->err;
|
---|
1125 |
|
---|
1126 | return ('OK','OK');
|
---|
1127 | } # end updateRec()
|
---|
1128 |
|
---|
1129 |
|
---|
1130 | ## DNSDB::delRec()
|
---|
1131 | # Delete a record.
|
---|
1132 | sub delRec {
|
---|
1133 | $errstr = '';
|
---|
1134 | my $dbh = shift;
|
---|
1135 | my $defrec = shift;
|
---|
1136 | my $id = shift;
|
---|
1137 |
|
---|
1138 | return "FAIL", "wakka wakka";
|
---|
1139 | my $sth = $dbh->prepare("DELETE FROM ".($defrec eq 'y' ? 'default_' : '')."records WHERE record_id=?");
|
---|
1140 | $sth->execute($id);
|
---|
1141 |
|
---|
1142 | return ('FAIL',"Couldn't remove record: ".$sth->errstr) if $sth->err;
|
---|
1143 |
|
---|
1144 | return ('OK','OK');
|
---|
1145 | } # end delRec()
|
---|
1146 |
|
---|
1147 |
|
---|
1148 | ## DNSDB::domStatus()
|
---|
1149 | # Sets and/or returns a domain's status
|
---|
1150 | # Takes a database handle, domain ID and optionally a status argument
|
---|
1151 | # Returns undef on errors.
|
---|
1152 | sub domStatus {
|
---|
1153 | my $dbh = shift;
|
---|
1154 | my $id = shift;
|
---|
1155 | my $newstatus = shift;
|
---|
1156 |
|
---|
1157 | return undef if $id !~ /^\d+$/;
|
---|
1158 |
|
---|
1159 | my $sth;
|
---|
1160 |
|
---|
1161 | # ooo, fun! let's see what we were passed for status
|
---|
1162 | if ($newstatus) {
|
---|
1163 | $sth = $dbh->prepare("update domains set status=? where domain_id=?");
|
---|
1164 | # ass-u-me caller knows what's going on in full
|
---|
1165 | if ($newstatus =~ /^[01]$/) { # only two valid for now.
|
---|
1166 | $sth->execute($newstatus,$id);
|
---|
1167 | } elsif ($newstatus =~ /^domo(?:n|ff)$/) {
|
---|
1168 | $sth->execute(($newstatus eq 'domon' ? 1 : 0),$id);
|
---|
1169 | }
|
---|
1170 | }
|
---|
1171 |
|
---|
1172 | $sth = $dbh->prepare("select status from domains where domain_id=?");
|
---|
1173 | $sth->execute($id);
|
---|
1174 | my ($status) = $sth->fetchrow_array;
|
---|
1175 | return $status;
|
---|
1176 | } # end domStatus()
|
---|
1177 |
|
---|
1178 |
|
---|
1179 | ## DNSDB::importAXFR
|
---|
1180 | # Import a domain via AXFR
|
---|
1181 | # Takes AXFR host, domain to transfer, group to put the domain in,
|
---|
1182 | # and optionally:
|
---|
1183 | # - active/inactive state flag (defaults to active)
|
---|
1184 | # - overwrite-SOA flag (defaults to off)
|
---|
1185 | # - overwrite-NS flag (defaults to off, doesn't affect subdomain NS records)
|
---|
1186 | # Returns a status code (OK, WARN, or FAIL) and message - message should be blank
|
---|
1187 | # if status is OK, but WARN includes conditions that are not fatal but should
|
---|
1188 | # really be reported.
|
---|
1189 | sub importAXFR {
|
---|
1190 | my $dbh = shift;
|
---|
1191 | my $ifrom_in = shift;
|
---|
1192 | my $domain = shift;
|
---|
1193 | my $group = shift;
|
---|
1194 | my $status = shift || 1;
|
---|
1195 | my $rwsoa = shift || 0;
|
---|
1196 | my $rwns = shift || 0;
|
---|
1197 |
|
---|
1198 | ##fixme: add mode to delete&replace, merge+overwrite, merge new?
|
---|
1199 |
|
---|
1200 | my $nrecs = 0;
|
---|
1201 | my $soaflag = 0;
|
---|
1202 | my $nsflag = 0;
|
---|
1203 | my $warnmsg = '';
|
---|
1204 | my $ifrom;
|
---|
1205 |
|
---|
1206 | # choke on possible bad setting in ifrom
|
---|
1207 | # IPv4 and v6, and valid hostnames!
|
---|
1208 | ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
|
---|
1209 | return ('FAIL', "Bad AXFR source host $ifrom")
|
---|
1210 | unless ($ifrom) = ($ifrom_in =~ /^([0-9a-f\:.]+|[0-9a-z_.-]+)$/i);
|
---|
1211 |
|
---|
1212 | # Allow transactions, and raise an exception on errors so we can catch it later.
|
---|
1213 | # Use local to make sure these get "reset" properly on exiting this block
|
---|
1214 | local $dbh->{AutoCommit} = 0;
|
---|
1215 | local $dbh->{RaiseError} = 1;
|
---|
1216 |
|
---|
1217 | my $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
|
---|
1218 | my $dom_id;
|
---|
1219 |
|
---|
1220 | # quick check to start to see if we've already got one
|
---|
1221 | $sth->execute($domain);
|
---|
1222 | ($dom_id) = $sth->fetchrow_array;
|
---|
1223 |
|
---|
1224 | return ('FAIL', "Domain already exists") if $dom_id;
|
---|
1225 |
|
---|
1226 | eval {
|
---|
1227 | # can't do this, can't nest transactions. sigh.
|
---|
1228 | #my ($dcode, $dmsg) = addDomain(dbh, domain, group, status);
|
---|
1229 |
|
---|
1230 | ##fixme: serial
|
---|
1231 | my $sth = $dbh->prepare("INSERT INTO domains (domain,group_id,status) VALUES (?,?,?)");
|
---|
1232 | $sth->execute($domain,$group,$status);
|
---|
1233 |
|
---|
1234 | ## bizarre DBI<->Net::DNS interaction bug:
|
---|
1235 | ## sometimes a zone will cause an immediate commit-and-exit (sort of) of the while()
|
---|
1236 | ## fixed, apparently I was doing *something* odd, but not certain what it was that
|
---|
1237 | ## caused a commit instead of barfing
|
---|
1238 |
|
---|
1239 | # get domain id so we can do the records
|
---|
1240 | $sth = $dbh->prepare("SELECT domain_id FROM domains WHERE domain=?");
|
---|
1241 | $sth->execute($domain);
|
---|
1242 | ($dom_id) = $sth->fetchrow_array();
|
---|
1243 |
|
---|
1244 | my $res = Net::DNS::Resolver->new;
|
---|
1245 | $res->nameservers($ifrom);
|
---|
1246 | $res->axfr_start($domain)
|
---|
1247 | or die "Couldn't begin AXFR\n";
|
---|
1248 |
|
---|
1249 | while (my $rr = $res->axfr_next()) {
|
---|
1250 | my $type = $rr->type;
|
---|
1251 |
|
---|
1252 | my $sql = "INSERT INTO records (domain_id,host,type,ttl,val";
|
---|
1253 | my $vallen = "?,?,?,?,?";
|
---|
1254 |
|
---|
1255 | $soaflag = 1 if $type eq 'SOA';
|
---|
1256 | $nsflag = 1 if $type eq 'NS';
|
---|
1257 |
|
---|
1258 | my @vallist = ($dom_id, $rr->name, $reverse_typemap{$type}, $rr->ttl);
|
---|
1259 |
|
---|
1260 | # "Primary" types:
|
---|
1261 | # A, NS, CNAME, SOA, PTR(warn in forward), MX, TXT, AAAA, SRV, A6(ob), SPF
|
---|
1262 | # maybe KEY
|
---|
1263 |
|
---|
1264 | # nasty big ugly case-like thing here, since we have to do *some* different
|
---|
1265 | # processing depending on the record. le sigh.
|
---|
1266 |
|
---|
1267 | if ($type eq 'A') {
|
---|
1268 | push @vallist, $rr->address;
|
---|
1269 | } elsif ($type eq 'NS') {
|
---|
1270 | # hmm. should we warn here if subdomain NS'es are left alone?
|
---|
1271 | next if ($rwns && ($rr->name eq $domain));
|
---|
1272 | push @vallist, $rr->nsdname;
|
---|
1273 | $nsflag = 1;
|
---|
1274 | } elsif ($type eq 'CNAME') {
|
---|
1275 | push @vallist, $rr->cname;
|
---|
1276 | } elsif ($type eq 'SOA') {
|
---|
1277 | next if $rwsoa;
|
---|
1278 | $vallist[1] = $rr->mname.":".$rr->rname;
|
---|
1279 | push @vallist, ($rr->refresh.":".$rr->retry.":".$rr->expire.":".$rr->minimum);
|
---|
1280 | $soaflag = 1;
|
---|
1281 | } elsif ($type eq 'PTR') {
|
---|
1282 | # hmm. PTR records should not be in forward zones.
|
---|
1283 | } elsif ($type eq 'MX') {
|
---|
1284 | $sql .= ",distance";
|
---|
1285 | $vallen .= ",?";
|
---|
1286 | push @vallist, $rr->exchange;
|
---|
1287 | push @vallist, $rr->preference;
|
---|
1288 | } elsif ($type eq 'TXT') {
|
---|
1289 | ##fixme: Net::DNS docs say this should be deprecated for rdatastr() or char_str_list(),
|
---|
1290 | ## but don't really seem enthusiastic about it.
|
---|
1291 | push @vallist, $rr->txtdata;
|
---|
1292 | } elsif ($type eq 'SPF') {
|
---|
1293 | ##fixme: and the same caveat here, since it is apparently a clone of ::TXT
|
---|
1294 | push @vallist, $rr->txtdata;
|
---|
1295 | } elsif ($type eq 'AAAA') {
|
---|
1296 | push @vallist, $rr->address;
|
---|
1297 | } elsif ($type eq 'SRV') {
|
---|
1298 | $sql .= ",distance,weight,port" if $type eq 'SRV';
|
---|
1299 | $vallen .= ",?,?,?" if $type eq 'SRV';
|
---|
1300 | push @vallist, $rr->target;
|
---|
1301 | push @vallist, $rr->priority;
|
---|
1302 | push @vallist, $rr->weight;
|
---|
1303 | push @vallist, $rr->port;
|
---|
1304 | } elsif ($type eq 'KEY') {
|
---|
1305 | # we don't actually know what to do with these...
|
---|
1306 | push @vallist, ($rr->flags.":".$rr->protocol.":".$rr->algorithm.":".$rr->key.":".$rr->keytag.":".$rr->privatekeyname);
|
---|
1307 | } else {
|
---|
1308 | push @vallist, $rr->rdatastr;
|
---|
1309 | # Finding a different record type is not fatal.... just problematic.
|
---|
1310 | # We may not be able to export it correctly.
|
---|
1311 | $warnmsg .= "Unusual record ".$rr->name." ($type) found\n";
|
---|
1312 | }
|
---|
1313 |
|
---|
1314 | # BIND supports:
|
---|
1315 | # A CNAME HINFO MB(ex) MD(ob) MF(ob) MG(ex) MINFO(ex) MR(ex) MX NS NULL
|
---|
1316 | # PTR SOA TXT WKS AFSDB(ex) ISDN(ex) RP(ex) RT(ex) X25(ex) PX
|
---|
1317 | # ... if one can ever find the right magic to format them correctly
|
---|
1318 |
|
---|
1319 | # Net::DNS supports:
|
---|
1320 | # RRSIG SIG NSAP NS NIMLOC NAPTR MX MR MINFO MG MB LOC ISDN IPSECKEY HINFO
|
---|
1321 | # EID DNAME CNAME CERT APL AFSDB AAAA A DS NXT NSEC3PARAM NSEC3 NSEC KEY
|
---|
1322 | # DNSKEY DLV X25 TXT TSIG TKEY SSHFP SRV SPF SOA RT RP PX PTR NULL APL::AplItem
|
---|
1323 |
|
---|
1324 | $sth = $dbh->prepare($sql.") VALUES (".$vallen.")") or die "problem preparing record insert SQL\n";
|
---|
1325 | $sth->execute(@vallist) or die "failed to insert ".$rr->string.": ".$sth->errstr."\n";
|
---|
1326 |
|
---|
1327 | $nrecs++;
|
---|
1328 |
|
---|
1329 | } # while axfr_next
|
---|
1330 |
|
---|
1331 | # Overwrite SOA record
|
---|
1332 | if ($rwsoa) {
|
---|
1333 | $soaflag = 1;
|
---|
1334 | my $sthgetsoa = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
|
---|
1335 | my $sthputsoa = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
|
---|
1336 | $sthgetsoa->execute($group,$reverse_typemap{SOA});
|
---|
1337 | while (my ($host,$val,$ttl) = $sthgetsoa->fetchrow_array()) {
|
---|
1338 | $host =~ s/DOMAIN/$domain/g;
|
---|
1339 | $val =~ s/DOMAIN/$domain/g;
|
---|
1340 | $sthputsoa->execute($dom_id,$host,$reverse_typemap{SOA},$val,$ttl);
|
---|
1341 | }
|
---|
1342 | }
|
---|
1343 |
|
---|
1344 | # Overwrite NS records
|
---|
1345 | if ($rwns) {
|
---|
1346 | $nsflag = 1;
|
---|
1347 | my $sthgetns = $dbh->prepare("SELECT host,val,ttl FROM default_records WHERE group_id=? AND type=?");
|
---|
1348 | my $sthputns = $dbh->prepare("INSERT INTO records (domain_id,host,type,val,ttl) VALUES (?,?,?,?,?)");
|
---|
1349 | $sthgetns->execute($group,$reverse_typemap{NS});
|
---|
1350 | while (my ($host,$val,$ttl) = $sthgetns->fetchrow_array()) {
|
---|
1351 | $host =~ s/DOMAIN/$domain/g;
|
---|
1352 | $val =~ s/DOMAIN/$domain/g;
|
---|
1353 | $sthputns->execute($dom_id,$host,$reverse_typemap{NS},$val,$ttl);
|
---|
1354 | }
|
---|
1355 | }
|
---|
1356 |
|
---|
1357 | die "No records found; either $ifrom is not authoritative or doesn't allow transfers\n" if !$nrecs;
|
---|
1358 | die "Bad zone: No SOA record!\n" if !$soaflag;
|
---|
1359 | die "Bad zone: No NS records!\n" if !$nsflag;
|
---|
1360 |
|
---|
1361 | $dbh->commit;
|
---|
1362 |
|
---|
1363 | };
|
---|
1364 |
|
---|
1365 | if ($@) {
|
---|
1366 | my $msg = $@;
|
---|
1367 | eval { $dbh->rollback; };
|
---|
1368 | return ('FAIL',$msg." $warnmsg");
|
---|
1369 | } else {
|
---|
1370 | return ('WARN', $warnmsg) if $warnmsg;
|
---|
1371 | return ('OK',"ook");
|
---|
1372 | }
|
---|
1373 |
|
---|
1374 | # it should be impossible to get here.
|
---|
1375 | return ('WARN',"OOOK!");
|
---|
1376 | } # end importAXFR()
|
---|
1377 |
|
---|
1378 |
|
---|
1379 | # shut Perl up
|
---|
1380 | 1;
|
---|