sspmod_consent_Auth_Process_Consent::process PHP Method

    public function process(&$state)
    {
        assert('is_array($state)');
        assert('array_key_exists("UserID", $state)');
        assert('array_key_exists("Destination", $state)');
        assert('array_key_exists("entityid", $state["Destination"])');
        assert('array_key_exists("metadata-set", $state["Destination"])');
        assert('array_key_exists("entityid", $state["Source"])');
        assert('array_key_exists("metadata-set", $state["Source"])');
        $spEntityId = $state['Destination']['entityid'];
        $idpEntityId = $state['Source']['entityid'];
        $metadata = SimpleSAML_Metadata_MetaDataStorageHandler::getMetadataHandler();
        /**
         * If the consent module is active on a bridge $state['saml:sp:IdP']
         * will contain an entry id for the remote IdP. If not, then the
         * consent module is active on a local IdP and nothing needs to be
         * done.
         */
        if (isset($state['saml:sp:IdP'])) {
            $idpEntityId = $state['saml:sp:IdP'];
            $idpmeta = $metadata->getMetaData($idpEntityId, 'saml20-idp-remote');
            $state['Source'] = $idpmeta;
        }
        $statsData = array('spEntityID' => $spEntityId);
        // Do not use consent if disabled
        if (isset($state['Source']['consent.disable']) && self::checkDisable($state['Source']['consent.disable'], $spEntityId)) {
            SimpleSAML\Logger::debug('Consent: Consent disabled for entity ' . $spEntityId . ' with IdP ' . $idpEntityId);
            SimpleSAML_Stats::log('consent:disabled', $statsData);
            return;
        }
        if (isset($state['Destination']['consent.disable']) && self::checkDisable($state['Destination']['consent.disable'], $idpEntityId)) {
            SimpleSAML\Logger::debug('Consent: Consent disabled for entity ' . $spEntityId . ' with IdP ' . $idpEntityId);
            SimpleSAML_Stats::log('consent:disabled', $statsData);
            return;
        }
        if ($this->_store !== null) {
            $source = $state['Source']['metadata-set'] . '|' . $idpEntityId;
            $destination = $state['Destination']['metadata-set'] . '|' . $spEntityId;
            $attributes = $state['Attributes'];
            // Remove attributes that do not require consent
            foreach ($attributes as $attrkey => $attrval) {
                if (in_array($attrkey, $this->_noconsentattributes)) {
                    unset($attributes[$attrkey]);
                }
            }
            SimpleSAML\Logger::debug('Consent: userid: ' . $state['UserID']);
            SimpleSAML\Logger::debug('Consent: source: ' . $source);
            SimpleSAML\Logger::debug('Consent: destination: ' . $destination);
            $userId = self::getHashedUserID($state['UserID'], $source);
            $targetedId = self::getTargetedID($state['UserID'], $source, $destination);
            $attributeSet = self::getAttributeHash($attributes, $this->_includeValues);
            SimpleSAML\Logger::debug('Consent: hasConsent() [' . $userId . '|' . $targetedId . '|' . $attributeSet . ']');
            try {
                if ($this->_store->hasConsent($userId, $targetedId, $attributeSet)) {
                    // Consent already given
                    SimpleSAML\Logger::stats('Consent: Consent found');
                    SimpleSAML_Stats::log('consent:found', $statsData);
                    return;
                }
                SimpleSAML\Logger::stats('Consent: Consent notfound');
                SimpleSAML_Stats::log('consent:notfound', $statsData);
                $state['consent:store'] = $this->_store;
                $state['consent:store.userId'] = $userId;
                $state['consent:store.destination'] = $targetedId;
                $state['consent:store.attributeSet'] = $attributeSet;
            } catch (Exception $e) {
                SimpleSAML\Logger::error('Consent: Error reading from storage: ' . $e->getMessage());
                SimpleSAML\Logger::stats('Consent: Failed');
                SimpleSAML_Stats::log('consent:failed', $statsData);
            }
        } else {
            SimpleSAML\Logger::stats('Consent: No storage');
            SimpleSAML_Stats::log('consent:nostorage', $statsData);
        }
        $state['consent:focus'] = $this->_focus;
        $state['consent:checked'] = $this->_checked;
        $state['consent:hiddenAttributes'] = $this->_hiddenAttributes;
        $state['consent:noconsentattributes'] = $this->_noconsentattributes;
        $state['consent:showNoConsentAboutService'] = $this->_showNoConsentAboutService;
        // user interaction necessary. Throw exception on isPassive request
        if (isset($state['isPassive']) && $state['isPassive'] === true) {
            SimpleSAML_Stats::log('consent:nopassive', $statsData);
            throw new SimpleSAML_Error_NoPassive('Unable to give consent on passive request.');
        }
        // Save state and redirect
        $id = SimpleSAML_Auth_State::saveState($state, 'consent:request');
        $url = SimpleSAML\Module::getModuleURL('consent/getconsent.php');
        \SimpleSAML\Utils\HTTP::redirectTrustedURL($url, array('StateId' => $id));
    }

 /**
  * Helper function to run the filter with a given configuration.
  *
  * @param array $config  The filter configuration.
  * @param array $request  The request state.
  * @return array  The state array after processing.
  */
 private function processFilter(array $config, array $request)
 {
     $filter = new \sspmod_consent_Auth_Process_Consent($config, null);
     $filter->process($request);
     return $request;
 }