<?php
require_once __DIR__ . '/_v4/includes.php';

$minLevel = (int)filter_input(INPUT_GET, 'l', FILTER_SANITIZE_NUMBER_INT);
$includeComment = !empty($_GET['c']);
$json = !empty($_GET['j']);

header('Content-Type: ' . ($json ? 'application/json; charset=utf-8' : 'text/plain; charset=us-ascii'));

$keys = $pdo->prepare('SELECT *, UNIX_TIMESTAMP(`key_created`) AS `key_created` FROM `fm_public_keys` WHERE `key_deprecated` IS NULL AND `key_level` >= :level');
$keys->bindValue('level', $minLevel);
$keys->execute();
$keys = $keys->fetchAll(PDO::FETCH_OBJ);

if($json) {
    $items = [];

    foreach($keys as $key) {
        $items[] = $item = new stdClass;
        $item->algo = $key->key_algo;
        $item->key = $key->key_body;
        if($includeComment) {
            $item->comment = $key->key_comment;
            $item->created = date(DateTime::ATOM, $key->key_created);
            $item->level = $key->key_level;
        }
    }

    echo json_encode($items);
} else {
    foreach($keys as $key) {
        printf('ssh-%s %s', $key->key_algo, $key->key_body);
        if($includeComment)
            printf(' %s (%s)', $key->key_comment, date('M Y', $key->key_created));
        echo "\n";
    }
}