[4] | 1 | # IPDB.pm
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| 2 | # Contains DB-related functions for IPDB
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| 3 | # Split from CommonWeb.pm 08/13/2004 kdeugau@vianet
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| 4 |
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| 5 | package IPDB;
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| 6 |
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| 7 | use strict;
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| 8 | use warnings;
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| 9 | use Exporter;
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| 10 | use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
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| 11 |
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| 12 | $VERSION = 1.0;
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| 13 | @ISA = qw(Exporter);
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| 14 | @EXPORT_OK = qw(&connectDB &checkDBSanity);
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| 15 |
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| 16 | @EXPORT = (); # Export nothing by default.
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| 17 | %EXPORT_TAGS = ( ALL => [qw( &connectDB &checkDBSanity )]
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| 18 | );
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| 19 |
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| 20 | # Creates connection to IPDB.
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| 21 | # Default is a PostgreSQL db; could be any DBMS with the
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| 22 | # right changes. MySQL in comments. Note that some DBMS's don't
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| 23 | # support transactions, this is a Bad Thing!
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| 24 | # Returns a handle to the db.
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| 25 | sub connectDB {
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| 26 | my $dbh;
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| 27 | my $DSN = "DBI:Pg:dbname=ipdb";
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| 28 | my $user = 'ipdb';
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| 29 | my $pw = 'ipdbpwd';
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| 30 |
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| 31 | # Note that we want to autocommit by default, and we will turn it off locally as necessary.
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| 32 | $dbh = DBI->connect($DSN, $user, $pw, { AutoCommit => 1 } )
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| 33 | or return undef if(!$dbh);
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| 34 |
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| 35 | return $dbh;
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| 36 | } # end connectDB
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| 37 |
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| 38 | # Quick check to see if the db is responding. A full integrity
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| 39 | # check will have to be a separate tool to walk the IP allocation trees.
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| 40 | sub checkDBSanity {
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| 41 | my $dbh = connectDB();
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| 42 |
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| 43 | if (!$dbh) {
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| 44 | printError("Cannot connect to the database");
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| 45 | } else {
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| 46 | # it connects, try a stmt.
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| 47 | my $sth = $dbh->prepare('select cidr from masterblocks');
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| 48 | my $err = $sth->execute();
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| 49 |
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| 50 | if ($sth->fetchrow()) {
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| 51 | # all is well.
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| 52 | return 1;
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| 53 | } else {
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| 54 | printHeader('');
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| 55 | printError("Connected to the database, but could not execute test statement sth->errstr()");
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| 56 | }
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| 57 | }
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| 58 | # Clean up after ourselves.
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| 59 | $dbh->disconnect;
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| 60 | } # end checkDBSanity
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| 61 |
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| 62 | # Indicates module loaded OK. Required by Perl.
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| 63 | 1;
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