streams/Code/Lib/Verify.php

<?php

namespace Code\Lib;

class Verify
{

    /**
     * @param $type
     * @param $channel_id
     * @param $token
     * @param $meta
     * @return bool
     */
    public static function create($type, $channel_id, $token, $meta): bool
    {
        return (bool) q(
            "insert into verify ( vtype, channel, token, meta, created ) values ( '%s', %d, '%s', '%s', '%s' )",
            dbesc($type),
            intval($channel_id),
            dbesc($token),
            dbesc($meta),
            dbesc(datetime_convert())
        );
    }

    public static function match($type, $channel_id, $token, $meta): bool
    {
        $r = q(
            "select id from verify where vtype = '%s' and channel = %d and token = '%s' and meta = '%s' limit 1",
            dbesc($type),
            intval($channel_id),
            dbesc($token),
            dbesc($meta)
        );
        if ($r) {
            q(
                "delete from verify where id = %d",
                intval($r[0]['id'])
            );
            return true;
        }
        return false;
    }

    public static function get_meta($type, $channel_id, $token)
    {
        $r = q(
            "select id, meta from verify where vtype = '%s' and channel = %d and token = '%s' limit 1",
            dbesc($type),
            intval($channel_id),
            dbesc($token)
        );
        if ($r) {
            q(
                "delete from verify where id = %d",
                intval($r[0]['id'])
            );
            return $r[0]['meta'];
        }
        return false;
    }

    /**
     * @brief Purge entries of a verify-type older than interval.
     *
     * @param string $type Verify type
     * @param string $interval SQL compatible time interval
     */
    public static function purge(string $type, string $interval): void
    {
        q(
            "delete from verify where vtype = '%s' and created < ( %s - INTERVAL %s )",
            dbesc($type),
            db_utcnow(),
            db_quoteinterval($interval)
        );
    }
}