Code Examples

This section contains a few bits of code for things you might want to do with Plugins.

Write messages to the Plugin Log

# Import the LRR logging module
use LANraragi::Utils::Logging qw(get_logger);
# Use the logger to output status - they'll be passed to a specialized logfile and written to STDOUT.
my $logger = get_logger("MyPluginName","plugins");
$plugin->debug("This message will only show if LRR is in Debug Mode")
$plugin->info("You know me the fighting freak Knuckles and we're at Pumpkin Hill");
$plugin->warn("You ready?");
$plugin->error("Oh no");

The logger is a preconfigured Mojo::Log object.

Make requests to a remote WebService

Mojo::UserAgent is a full-featured HTTP client coming with LRR you can use.

use Mojo::UserAgent;
my $ua = $lrr_info->{user_agent};
#Get HTML from a simple GET request
$ua->get("http://example.com")->result->body;
#Make a POST request and get the JSON result
my $rep = $ua->post(
"https://jsonplaceholder.typicode.com/" => json => {
stage => "Meteor Herd",
location => [ [ "space", "colony" ] ],
emeralds => 3
}
)->result;
#JSON decoded to a perl object
my $jsonresponse = $rep->json;
#JSON decoded to a string
my $textrep = $rep->body;

Read values in the LRR Database

my $redis = LANraragi::Model::Config->get_redis;
my $value = $redis->get("key");

This uses the excellent Perl binding library for Redis.

Extract files from the archive being examined

If you're running 0.5.2 or later:

use LANraragi::Utils::Archive qw(is_file_in_archive extract_file_from_archive);
#Check if info.json is in the archive located at $file
if (is_file_in_archive($file,"info.json")) {
#Extract info.json
my $filepath = extract_file_from_archive($file, "info.json");
#Do whatever you need with the extracted file
open( my $fh, '<:encoding(UTF-8)', $filepath )
or return ( error => "Could not open $filepath!" );
while ( my $row = <$fh> ) {
#...
}
#Delete it
unlink $filepath;
}