sintonia/legacy/application/forms/TuneInPreferences.php

<?php

require_once 'customvalidators/ConditionalNotEmpty.php';

class Application_Form_TuneInPreferences extends Zend_Form_SubForm
{
    public function init()
    {
        $this->setDecorators([
            ['ViewScript', ['viewScript' => 'form/preferences_tunein.phtml']],
        ]);

        $enableTunein = new Zend_Form_Element_Checkbox('enable_tunein');
        $enableTunein->setDecorators([
            'ViewHelper',
            'Errors',
            'Label',
        ]);
        $enableTunein->addDecorator('Label', ['class' => 'enable-tunein']);
        $enableTunein->setLabel(_('Push metadata to your station on TuneIn?'));
        $enableTunein->setValue(Application_Model_Preference::getTuneinEnabled());
        $this->addElement($enableTunein);

        $tuneinStationId = new Zend_Form_Element_Text('tunein_station_id');
        $tuneinStationId->setLabel(_('Station ID:'));
        $tuneinStationId->setValue(Application_Model_Preference::getTuneinStationId());
        $tuneinStationId->setAttrib('class', 'input_text');
        $this->addElement($tuneinStationId);

        $tuneinPartnerKey = new Zend_Form_Element_Text('tunein_partner_key');
        $tuneinPartnerKey->setLabel(_('Partner Key:'));
        $tuneinPartnerKey->setValue(Application_Model_Preference::getTuneinPartnerKey());
        $tuneinPartnerKey->setAttrib('class', 'input_text');
        $this->addElement($tuneinPartnerKey);

        $tuneinPartnerId = new Zend_Form_Element_Text('tunein_partner_id');
        $tuneinPartnerId->setLabel(_('Partner Id:'));
        $tuneinPartnerId->setValue(Application_Model_Preference::getTuneinPartnerId());
        $tuneinPartnerId->setAttrib('class', 'input_text');
        $this->addElement($tuneinPartnerId);
    }

    public function isValid($data)
    {
        $valid = true;
        // Make request to TuneIn API to test the settings are valid.
        // TuneIn does not have an API to make test requests to check if
        // the credentials are correct. Therefore we will make a request
        // with the commercial flag set to true, which removes the metadata
        // from the station on TuneIn. After that, and if the test request
        // succeeds, we will make another request with the real metadata.
        if ($data['enable_tunein']) {
            $credentialsQryStr = '?partnerId=' . $data['tunein_partner_id'] . '&partnerKey=' . $data['tunein_partner_key'] . '&id=' . $data['tunein_station_id'];
            $commercialFlagQryStr = '&commercial=true';

            $metadata = Application_Model_Schedule::getCurrentPlayingTrack();

            if (is_null($metadata)) {
                $qryStr = $credentialsQryStr . $commercialFlagQryStr;
            } else {
                $metadata['artist'] = empty($metadata['artist']) ? 'n/a' : $metadata['artist'];
                $metadata['title'] = empty($metadata['title']) ? 'n/a' : $metadata['title'];
                $metadataQryStr = '&artist=' . $metadata['artist'] . '&title=' . $metadata['title'];

                $qryStr = $credentialsQryStr . $metadataQryStr;
            }

            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, TUNEIN_API_URL . $qryStr);
            curl_setopt($ch, CURLOPT_FAILONERROR, 1);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_TIMEOUT, 30);

            $xmlData = curl_exec($ch);
            if (curl_error($ch)) {
                Logging::error('Failed to reach TuneIn: ' . curl_errno($ch) . ' - ' . curl_error($ch) . ' - ' . curl_getinfo($ch, CURLINFO_EFFECTIVE_URL));
                if (curl_error($ch) == 'The requested URL returned error: 403 Forbidden') {
                    $this->getElement('enable_tunein')->setErrors([_('Invalid TuneIn Settings. Please ensure your TuneIn settings are correct and try again.')]);
                    $valid = false;
                }
            }
            curl_close($ch);

            if ($valid) {
                $xmlObj = new SimpleXMLElement($xmlData);
                if (!$xmlObj || $xmlObj->head->status != '200') {
                    $this->getElement('enable_tunein')->setErrors([_('Invalid TuneIn Settings. Please ensure your TuneIn settings are correct and try again.')]);
                    $valid = false;
                } elseif ($xmlObj->head->status == '200') {
                    Application_Model_Preference::setLastTuneinMetadataUpdate(time());
                    $valid = true;
                }
            }
        } else {
            $valid = true;
        }

        if (!$valid) {
            // Set values to what the user entered since the form is invalid so they
            // don't have to enter in the values again and can see what they entered.
            $this->getElement('enable_tunein')->setValue($data['enable_tunein']);
            $this->getElement('tunein_partner_key')->setValue($data['tunein_partner_key']);
            $this->getElement('tunein_partner_id')->setValue($data['tunein_partner_id']);
            $this->getElement('tunein_station_id')->setValue($data['tunein_station_id']);
        }

        return $valid;
    }
}