1 files changed, 129 insertions, 0 deletions
diff --git a/lib/twig.php b/lib/twig.php
new file mode 100644
index 0000000..db1354d
--- /dev/null
+++ b/lib/twig.php
@@ -0,0 +1,129 @@
+<?php
+
+require_once('Twig/Autoloader.php');
+Twig_Autoloader::register();
+
+class Twig_Loader_Dokuwiki implements Twig_LoaderInterface, Twig_ExistsLoaderInterface
+{
+    private function build_pagename($name) {
+        return 'hostinfo:templates:' . cleanID($name);
+    }
+
+    public function getSource($name)
+    {
+        $page = $this->build_pagename($name);
+        return rawWiki($page);
+    }
+
+    public function getCacheKey($name)
+    {
+        return $this->build_pagename($name);
+    }
+
+    public function isFresh($name, $time)
+    {
+        $page = $this->build_pagename($name);
+        $last_change = p_get_metadata($page, 'last_change date');
+        return $last_change < $time;
+    }
+
+    public function exists($name)
+    {
+        $page = $this->build_pagename($name);
+        return page_exists($page);
+    }
+}
+
+class Hostinfo_Twig_Extension extends Twig_Extension
+{
+    public function getFilters()
+    {
+        return array(
+            new Twig_SimpleFilter('contact_info', function($value) {
+                if (is_array($value)) {
+                    return '[[' . current($value) . '|' . key($value) . ']]';
+                }
+
+                return '[[' . $value . '@spline.inf.fu-berlin.de' . '|' . $value . ']]';
+            }),
+
+            new Twig_SimpleFilter('parse_service', function($value) {
+                if (is_array($value)) {
+                    return array(
+                        'port' => current($value),
+                        'name' => key($value),
+                    );
+                }
+
+                return array(
+                    'name' => $value,
+                    'port' => $null,
+                );
+            }),
+
+            new Twig_SimpleFilter('group_by', function($value, $key) {
+                $array = array();
+
+                foreach ($value as $k => $v) {
+                    if (array_key_exists($key, $v)) {
+                        if (is_array($v[$key])) {
+                            foreach ($v[$key] as $key_part) {
+                                $array[$key_part][$k] = $v;
+                            }
+                        }
+                        else {
+                            $array[$v[$key]][$k] = $v;
+                        }
+                    }
+                }
+
+                return $array;
+            }),
+
+            new Twig_SimpleFilter('key_not_exists', function($value, $key) {
+                if (!is_array($value)) {
+                    return array();
+                }
+
+                return array_filter($value,
+                    function($v) use ($key) {
+                        return !array_key_exists($key, $v);
+                    });
+            }),
+
+            new Twig_SimpleFilter('count', function($value) {
+                return count($value);
+            }),
+
+            new Twig_SimpleFilter('length', function($value) {
+                return strlen($value);
+            }),
+        );
+    }
+
+    public function getName()
+    {
+        return 'hostinfo';
+    }
+}
+
+class Twig
+{
+    function __construct()
+    {
+        $loader = new Twig_Loader_Dokuwiki();
+        $this->twig = new Twig_Environment($loader, array(
+            'cache' => __DIR__ . '/../templates_c/',
+            'auto_reload' => true,
+        ));
+        $this->twig->addExtension(new Hostinfo_Twig_Extension());
+    }
+
+    public function render($template, $vars=null)
+    {
+        $tmpl = $this->twig->loadTemplate($template . '.tpl');
+        return $tmpl->render($vars);
+    }
+}
+
+// vim: set ts=4 sw=4 tw=0 et :