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#! /usr/bin/env perl
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# take persistent storage created by mapSwitches.pl and dump entries
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# to a tab delimited text file on STDOUT.
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# v1.2 RWR 20200228
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# added description field
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use strict;
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use warnings;
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use File::Spec; # find location of script so we can put storage in same directory
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use File::Basename;
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use YAML::Tiny; # apt-get libyaml-tiny-perl under debian
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use POSIX qw( strftime ); # to convert timestamp to something readable
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our $VERSION = '1.2';
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# where the script is located
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my $scriptDir = dirname( File::Spec->rel2abs( __FILE__ ) );
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# put the statefile in there
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my $STATEFILE = $scriptDir . '/mapSwitches.yaml';
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my %switchports;
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# pretty up the MAC addresses by inserting colons between
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# every pair of numbers
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sub prettyMAC {
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my $mac = shift;
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my @mac = ( $mac =~ m/../g );
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return join( ':', @mac );
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}
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# change the Unix timestamp into yyyy-mm-dd hh:mm:ss
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sub prettyTime {
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my $time = shift;
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return '' unless $time;
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return strftime '%Y-%m-%d %H:%M:%S', localtime( $time );
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}
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sub dumpLine {
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my $startTag = shift;
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my $endTag = shift;
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# read in values, defaulting to empty string if undef
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my @values = map{ $_ ? $_ : '' } @_;
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return "<tr>$startTag" . join( $endTag . $startTag, @values ) . "$endTag</tr>\n";
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}
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# read the saved state into memory if it exists
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die "no state file found, looking at $STATEFILE\n" unless -e $STATEFILE;
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# get the delimiter and the encapsulation chars
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my $delimiter = shift;
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my $encapsulate = shift;
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# default to tab delimited, no encapsulation if none entered
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$delimiter = "\t" unless $delimiter;
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$encapsulate = '' unless $encapsulate;
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my $yaml = YAML::Tiny->read( $STATEFILE );
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%switchports = %{ $yaml->[0] };
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print "<html>\n<body>\n";
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print "<h1>MapSwitches</h1><h2>Generated: " . &prettyTime(time) . "</h2>\n";
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print "<table border='1'>\n";
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foreach my $switch ( sort keys %switchports ) {
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print "<tr><td colspan='8' align='center'>$switchports{$switch}{'name'} Located at $switchports{$switch}{'location'}</td></tr>\n";
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# print the header
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print &dumpLine( '<th>', '</th>', 'Switch','Port','Alias','Description','MAC','IP','Host Name','Last Seen' );
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foreach my $port ( sort {$a<=>$b} keys %{$switchports{$switch}{'ports'}} ) {
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foreach my $connection ( keys %{$switchports{$switch}{'ports'}{$port} } ) {
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next if $connection eq 'alias' or $connection eq 'description';
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print &dumpLine ( '<td>', '</td>',
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$switch,
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$port,
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$switchports{$switch}{'ports'}{$port}{'alias'},
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$switchports{$switch}{'ports'}{$port}{'description'},
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&prettyMAC( $switchports{$switch}{'ports'}{$port}{$connection}{'mac'}),
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$switchports{$switch}{'ports'}{$port}{$connection}{'ip'},
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$switchports{$switch}{'ports'}{$port}{$connection}{'hostname'},
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&prettyTime( $switchports{$switch}{'ports'}{$port}{$connection}{'lastseen'} )
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) ;
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}
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}
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print "</table>\n</body>\n</html>\n";
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}
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1;
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