php-upnp/src/SSDP/Service.php

<?php

namespace NoccyLabs\UPnP\SSDP;

/*
    <serviceType>urn:schemas-upnp-org:service:Layer3Forwarding:1</serviceType>
    <serviceId>urn:upnp-org:serviceId:L3Forwarding1</serviceId>
    <SCPDURL>/L3F.xml</SCPDURL>
    <controlURL>/ctl/L3F</controlURL>
    <eventSubURL>/evt/L3F</eventSubURL>
*/

use JsonSerializable;
use SimpleXMLElement;

class Service implements JsonSerializable
{
    protected $device;

    protected $serviceType;

    protected $serviceId;

    protected $scpdUrl;

    protected $controlUrl;

    protected $eventSubUrl;

    public function __construct(Device $device, SimpleXMLElement $spec)
    {

        $this->device =             $device;
        $this->serviceType =        (string)$spec->serviceType;
        $this->serviceId =          (string)$spec->serviceId;
        $this->scpdUrl =            (string)$spec->SCPDURL;
        $this->controlUrl =         (string)$spec->controlURL;
        $this->eventSubUrl =        (string)$spec->eventSubURL;

    }

    public function getServiceType()
    {
        return $this->serviceType;
    }

    public function getServiceId()
    {
        return $this->serviceId;
    }

    public function getScpdUrl()
    {
        return $this->scpdUrl;
    }

    /**
     * Get the service description URL
     *
     * @return string
     */
    public function getUrl()
    {
        if (strpos($this->scpdUrl,"://")!==false) {
            return $this->scpdUrl;
        }

        $dev = ['user'=>null, 'pass'=>null, 'port'=>80, 'path'=>null];
        $dev = array_merge($dev, parse_url($this->device->getUrl()));
        $url = $this->scpdUrl;

        $auth = $dev['user']?($dev['user'].":".$dev['path']):"";
        $base = $dev['scheme']."://".$dev['host'].":".($dev['port']?:80);
        if ($url[0]=="/") {
            return $base.$url;
        } else {
            return $base.rtrim($dev['path'],"/")."/".$url;
        }

    }

    public function getControlUrl()
    {
        return $this->controlUrl;
    }

    public function getEventSubUrl()
    {
        return $this->eventSubUrl;
    }

    public function __toString()
    {
        return sprintf("Service: %s [%s]\nControl URL: %s\nEventSub URL: %s\nSCPD URL: %s\n",
            $this->serviceId,
            $this->serviceType,
            $this->controlUrl,
            $this->eventSubUrl,
            $this->scpdUrl
        );
    }

    public function jsonSerialize()
    {
        return get_object_vars($this);
    }

}