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#!/usr/bin/perl
use strict;
use warnings;
use Encode qw(decode_utf8);
use HTML::Escape qw(escape_html);
use Time::HiRes qw(gettimeofday tv_interval);
use BSD::Resource;
# 1. Start Benchmark Timer
my $start_time = [gettimeofday];
my $search_text = '';
if ($ENV{QUERY_STRING} && $ENV{QUERY_STRING} =~ /^q=([^&]*)/) {
$search_text = decode_utf8($1 // "");
$search_text =~ s/\P{Print}//g;
$search_text = substr($search_text, 0, 64);
$search_text =~ s/^\s+|\s+$//g;
}
my @results;
my $files_read = 0; # Track IO Activity
my $start_dir = '../log';
my @files = glob("$start_dir/*/index.html");
foreach my $path (@files) {
next if -l $path || ! -f $path;
# Using :encoding(UTF-8) to handle the valid text files
next unless open(my $fh, "<:encoding(UTF-8)", $path);
$files_read++;
my $html = do { local $/; <$fh> };
close($fh);
my ($text) = $html =~ m|<main>(.*?)</main>|is;
$text =~ s|<[^>]+>| |g;
$text =~ s|\s+| |g;
next unless $text =~ /(.{0,40})(\Q$search_text\E)(.{0,40})/is;
my ($before, $actual, $after) = ($1, $2, $3);
$after =~ s/\s\S*$// if length($after) > 25;
$before =~ s/^.*?\s// if length($before) > 25;
if ($before =~ /\S/) {
$before = ucfirst($before);
} else {
$before = "";
$actual = ucfirst($actual);
}
my $safe_before = escape_html($before);
my $safe_actual = escape_html($actual);
my $safe_after = escape_html($after);
my $snippet = "${safe_before}<b>${safe_actual}</b>${safe_after}...";
my ($title) = $html =~ m|<title>(.*?)</title>|is;
my $safe_title = escape_html($title || "No Title");
push @results, {
path => $path,
title => $safe_title,
snippet => $snippet
};
}
# 2. Calculate Metrics
my $end_time = [gettimeofday];
my $elapsed = tv_interval($start_time, $end_time);
my $rusage = getrusage();
my $user_cpu = $rusage->utime;
my $system_cpu = $rusage->stime;
my $max_rss = $rusage->maxrss;
# 3. Output
print "Content-Type: text/html\n\n";
my $list;
if ($search_text eq '') {
$list = "<p>Please enter a search term above.</p>";
} elsif (@results == 0) {
$list = "<p>No results found for \"<b>$search_text</b>\".</p>";
} else {
$list = "<ul>";
foreach my $res (@results) {
my $url = $res->{path};
$list .= "<li><a href=\"/$url\">$res->{title}</a><br><small>$res->{snippet}</small></li>";
}
$list .= "</ul>";
}
my $safe_search_text = escape_html($search_text);
my $year = (localtime)[5] + 1900;
print <<"HTML";
<!DOCTYPE html>
<html lang="en-us">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Search</title>
<link rel="stylesheet" href="/assets/css/main.css">
<link rel="stylesheet" href="/assets/css/skeleton.css">
</head>
<body>
<div id="nav-container" class="container">
<ul id="navlist" class="left">
<li><a href="/" class="link-decor-none">hme</a></li>
<li><a href="/log/" class="link-decor-none">log</a></li>
<li><a href="/projects/" class="link-decor-none">poc</a></li>
<li><a href="/about/" class="link-decor-none">abt</a></li>
<li class="active"><a href="/cgi-bin/find.cgi" class="link-decor-none">sws</a></li>
<li><a href="/feed.xml" class="link-decor-none">rss</a></li>
</ul>
</div>
<main class="container" id="main">
<div class="container">
<h2>Search</h2>
<form action="" method="GET">
<input id="search-box" type="text" name="q" value="$safe_search_text">
<input id="search-btn" type="submit" value="Search">
</form>
$list
<div style="background: #f4f4f4; padding: 10px; border-radius: 5px; font-family: monospace; font-size: 0.85em; margin-top: 20px; border: 1px solid #ddd;">
<strong>Performance Metrics:</strong><br>
Total Time: @{[ sprintf("%.4f", $elapsed) ]} seconds<br>
User CPU: $user_cpu s<br>
System CPU: $system_cpu s<br>
Peak RAM: $max_rss KB<br>
Files Read: $files_read (IO Activity)
</div>
</div>
</main>
<div class="footer">
<div class="container">
<div class="twelve columns right container-2">
<p id="footer-text">© ASCIIMX - $year</p>
</div>
</div>
</div>
</body>
</html>
HTML
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