Perl updating a value in .conf file from a form

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I have a admin.conf file and the file looks like this. For example,

[online_offline_status]
online_offline_status.online_offline_state = ONLINE

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粉色の甜心

2021-01-07 14:40

Yes, it is possible.

Dirtiest way is to change the file on place via sed script, called from Perl..

Better way is to open the file in perl, read into a string, replace offline with online and print it out again, clobbering the old file.

ps: Did you hear about CGI.pm? It could ease your work.

Ps Ps: It would be better to use some modern web framework, like mojolicious, Dancer.

with CGI.pm

(be sure that the admin.conf is writeable by the webserver account)

In index9.cgi

use strict;
use warnings;
use CGI;
use Config::Tiny;
use Data::Dumper;
use CGI::Carp qw(fatalsToBrowser);

my $q = CGI->new;
print $q->header();
my $state = $q->param('state');
my $file = "/full/path/to/admin.conf";
my $Config = Config::Tiny->read( $file );
my $status_in_file = $Config->{online_offline_status}->{online_offline_status.online_offline_state};

my $msg = "No changes being made";
$msg = "Status changed from $status_in_file to $status" if $status_in_file ne $status;
$Config->{online_offline_status}->{online_offline_status.online_offline_state} = $status;
$Config->write( $file );



print qq~
<html>
<head>
<link rel="stylesheet" type="text/css" href="cstyle17.css">
</head>
<body>
<div id="content">
<div id="bar">
<span><p>Controller Settings</p></span>
</div>
<div id="tab-container">
<ul>
<li class="active"><span><a href="index.cgi">Offline / Online Status</a></span></li>
<li><span><a href="#">Data Online</a></span></li>
</ul>
</div>
<div id="main-container">
<table width='100%' height='60%'>
<tr>
<td width="50%" align="left">
<div id="title"><span>Offline / Online State :</span></div>
</td>
<td>
<div id="form">
<form method="link" action="index.cgi">
<p>$msg</p>
</div>
</td>
</tr>
<tr>
<td colspan='2'>
<div id="button">
<input type="submit" value="Back">
</div>
</td>
</tr>
</form>
</table>
</div>
</div>

</body>
</html>

~;

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