diff --git a/fid_bbi/config/vufind/config.ini b/fid_bbi/config/vufind/config.ini
index 77220ec6b1dcbff5fb51a996b7eecbd3c4775f2e..e6dc0416fa7d6659b1d3d037fbdcb6c0e9f54acf 100644
--- a/fid_bbi/config/vufind/config.ini
+++ b/fid_bbi/config/vufind/config.ini
@@ -93,6 +93,20 @@ host = https://fid-bbi.idm.oclc.org
; authentication requests in VuFind:
;disable_ticket_auth_logging = true
+[RssConsumer]
+base_url = "https://www.fid-bbi.de/wordpress/"
+xml_doc = "?feed=rss2"
+input_date_format = "D, j M Y G:i:s O"
+excerpt_length = 150
+; excerpt_suffix is the string added to excerpts to denote they were shortened
+excerpt_suffix = " ..."
+limit = 4
+; set cache_ttl to
+; * number of seconds for cache lifetime
+; * or 0 for infinite caching (default)
+; * or -1 for no caching
+cache_ttl = 3600 ;one hour
+
[Content]
coversize = false
diff --git a/module/fid_bbi/config/module.config.php b/module/fid_bbi/config/module.config.php
index 889ae6fb7be25a2b06848a648658e7504ad05af9..88410003d0499eded3965176d3d053adc747066d 100644
--- a/module/fid_bbi/config/module.config.php
+++ b/module/fid_bbi/config/module.config.php
@@ -23,6 +23,7 @@
use VuFind\Db\Table\Tags as BaseTagsTable;
use fid_bbi\Db\Table\Tags as BBITagsTable;
+use fid_bbi\Helper\Rss;
use VuFind\Db\Row\Tags as BaseTagsRow;
use VuFind\Db\Table\CaseSensitiveTagsFactory;
use fid_bbi\Controller\RecordController;
@@ -84,6 +85,14 @@ $config = [
],
],
],
+ 'view_helpers' => [
+ 'aliases' => [
+ 'rss' => Rss::class,
+ ],
+ 'factories' => [
+ Rss::class => 'fid_bbi\Helper\Factory::getRss',
+ ],
+ ],
'vufind' => [
'plugin_managers' => [
'recorddriver' => [
diff --git a/module/fid_bbi/src/fid_bbi/Helper/Factory.php b/module/fid_bbi/src/fid_bbi/Helper/Factory.php
new file mode 100644
index 0000000000000000000000000000000000000000..4c0fa1165aebb4a5871ec4e5175e6e356757c94c
--- /dev/null
+++ b/module/fid_bbi/src/fid_bbi/Helper/Factory.php
@@ -0,0 +1,58 @@
+<?php
+/**
+ * Factory for view helpers.
+ *
+ * PHP version 7
+ *
+ * Copyright (C) Leipzig University Library 2021.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * @category VuFind
+ * @package View_Helpers
+ * @author Dorain Merz <merz@ub.uni-leipzig.de>
+ * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link https://vufind.org/wiki/development Wiki
+ */
+namespace fid_bbi\Helper;
+
+use Interop\Container\ContainerInterface;
+
+/**
+ * Factory for Root view helpers.
+ *
+ * @category VuFind
+ * @package View_Helpers
+ * @author Dorain Merz <merz@ub.uni-leipzig.de>
+ * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link https://vufind.org/wiki/development Wiki
+ */
+class Factory
+{
+ /**
+ * Construct the Rss helper.
+ *
+ * @param ContainerInterface $container Service manager.
+ *
+ * @return Rss
+ */
+ public static function getRss(ContainerInterface $container)
+ {
+ return new Rss(
+ $container->get('VuFind\Config')->get('config')->RssConsumer,
+ $container->get('VuFind\Date\Converter'),
+ $container->get('VuFind\Cache\Manager')->getCache('object',Rss::class)
+ );
+ }
+}
diff --git a/module/fid_bbi/src/fid_bbi/Helper/Rss.php b/module/fid_bbi/src/fid_bbi/Helper/Rss.php
new file mode 100644
index 0000000000000000000000000000000000000000..4f0bbd58989c027e0570aebe106b41e6e094ce29
--- /dev/null
+++ b/module/fid_bbi/src/fid_bbi/Helper/Rss.php
@@ -0,0 +1,196 @@
+<?php
+/**
+ * Copyright (C) 2019 Leipzig University Library
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * @author Robert Lange <lange@ub.uni-leipzig.de>
+ * @author Dorian Merz <merz@ub.uni-leipzig.de>
+ * @license http://opensource.org/licenses/gpl-2.0.php GNU GPLv2
+ */
+
+namespace fid_bbi\Helper;
+
+use DOMDocument;
+use VuFind\Date\Converter;
+use Zend\Cache\Storage\StorageInterface;
+use Zend\Config\Config;
+use Zend\View\Helper\AbstractHelper;
+
+/**
+ * Class Rss Provides feed reader functionality
+ * Mostly a copy from instance/fid_adlr,
+ * * adds excerpt and date,
+ * * returns objects instead of arrays
+ * * provides __invoke
+ * * alters constructor to include config and dateConverter
+ *
+ * @deprecated pull up to FID-module
+ * @package fid_bbi\Helper
+ */
+class Rss extends AbstractHelper
+{
+ /**
+ * @var Config
+ */
+ protected $rssConfig;
+
+ /**
+ * @var Converter
+ */
+ protected $dateConverter;
+
+ /**
+ * @var StorageInterface
+ */
+ protected $cache;
+
+ /**
+ * @var bool
+ */
+ protected $caching;
+
+ /**
+ * @var string
+ */
+ protected $cacheKey;
+
+ /**
+ * Rss constructor.
+ * @param Config $rssConfig
+ * @param Converter $dateConverter
+ * @param StorageInterface $cacheManager
+ */
+ public function __construct(Config $rssConfig, Converter $dateConverter, StorageInterface $cache)
+ {
+ $this->rssConfig = $rssConfig;
+ $this->dateConverter = $dateConverter;
+ $this->feedDateFormat = $this->rssConfig->input_date_format ?? 'c';
+ $this->prepareCache($cache);
+ }
+
+ protected function prepareCache(StorageInterface $cache)
+ {
+ $ttl = $this->rssConfig['cache_ttl'] ?? 0;
+ if ($ttl == -1) {
+ $this->caching = false;
+ } else {
+ $this->caching = true;
+ $this->cache = $cache;
+ $this->cache->getOptions()->setTtl($ttl);
+ $this->cacheKey = md5(implode($this->rssConfig->toArray()));
+ }
+ }
+
+ /**
+ * Read cached feed
+ *
+ * @return bool|mixed cached feed or false if caching is inactive
+ */
+ protected function readCacheData()
+ {
+ if ($this->caching) {
+ return $this->cache->getItem($this->cacheKey);
+ }
+ return false;
+ }
+
+ protected function writeCacheData($data)
+ {
+ if ($this->caching) {
+ $this->cache->setItem($this->cacheKey,$data);
+ }
+ }
+
+ /**
+ * Read the feed
+ *
+ * @return array|bool|mixed
+ */
+ public function __invoke()
+ {
+ return $this->getFeed();
+ }
+
+ /**
+ * get Rss feed data
+ *
+ * @return array|bool|mixed
+ */
+ protected function getFeed()
+ {
+ if ($cacheData = $this->readCacheData()) {
+ return $cacheData;
+ } else {
+ $feed = $this->load($this->rssConfig);
+ $this->writeCacheData($feed);
+ return $feed;
+ }
+ }
+
+ /**
+ * @param array of rss origin data
+ * @return array of rss feeds
+ */
+ public function load($rssOrigin)
+ {
+ $baseUrl = $rssOrigin["base_url"] ?? "";
+ $fallback = $rssOrigin["fallback_url"] ?? "";
+ $docPath = $rssOrigin["xml_doc"] ?? "";
+
+ $rssDoc = new DOMDocument();
+ $feeds = array();
+ try {
+ if ($rssDoc->load($baseUrl . '/' . $docPath)) {
+ $limit = $rssOrigin['limit'] ?? 3;
+ $n = 0;
+
+ foreach ($rssDoc->getElementsByTagName('item') as $node) {
+ $excerpt = $node->getElementsByTagName('description')->item(0)->nodeValue;
+ if (strlen($excerpt) > $this->rssConfig->excerpt_length) {
+ $excerpt = substr($excerpt, 0, $this->rssConfig->excerpt_length);
+ $lastSpace = strrpos($excerpt, ' ');
+ $excerpt = substr($excerpt, 0, $lastSpace);
+ if (isset($this->rssConfig['excerpt_suffix'])) {
+ $excerpt .= $this->rssConfig['excerpt_suffix'];
+ }
+ }
+ $date = $node->getElementsByTagName('pubDate')->item(0)->nodeValue;
+ $date = $this->dateConverter->convertToDisplayDate($this->feedDateFormat,$date);
+ $item = array(
+ 'title' => $node->getElementsByTagName('title')->item(0)->nodeValue,
+ 'link' => $node->getElementsByTagName('link')->item(0)->nodeValue,
+ 'excerpt' => $excerpt,
+ 'date' => $date,
+ );
+ array_push($feeds, (object)$item);
+
+ if (++$n >= $limit) {
+ break;
+ }
+ }
+ }
+ } catch (\Exception $ex) {
+ if ($fallback) {
+ $item = array(
+ 'title' => $fallback,
+ 'link' => $fallback
+ );
+ array_push($feeds, $item);
+ }
+ }
+
+ return $feeds;
+ }
+}
diff --git a/themes/fid_bbi/templates/search/home.phtml b/themes/fid_bbi/templates/search/home.phtml
index e9938c8016196ec628b6f07dbe06df1d2815edf9..07126cca94c0c4b8849f9f30d676c09042e330b1 100644
--- a/themes/fid_bbi/templates/search/home.phtml
+++ b/themes/fid_bbi/templates/search/home.phtml
@@ -11,13 +11,9 @@ $this->layout()->breadcrumbs = false;
<h2 class="sr-only"><?=$this->translate('Recent Blog Posts')?></h2>
<div class="posts">
- <?php
- // TODO: Replace this once blog API is available
- $postsFile = APPLICATION_PATH . '/themes/fid_bbi/dummy-posts.json';
- $posts = @json_decode(@file_get_contents($postsFile));
- ?>
-
- <?php if ($posts): ?>
+ <?php
+ $posts = $this->rss();
+ if ($posts): ?>
<?php foreach ($posts as $post): ?>
<article class="post">
<header class="post_header">