first go at using reflection for remote export

lib/plugins/remote.php

@@ -17,10 +17,82 @@ abstract class DokuWiki_Remote_Plugin extends DokuWiki_Plugin {
     /**
      * Get all available methods with remote access.
      *
-     * @abstract
+     * By default it exports all public methods of a remote plugin. Methods beginning
+     * with an underscore are skipped.
+     *
      * @return array Information about all provided methods. {@see RemoteAPI}.
      */
-    public abstract function _getMethods();
+    public function _getMethods() {
+        $result = array();
+
+        $reflection = new \ReflectionClass($this);
+        foreach($reflection->getMethods(ReflectionMethod::IS_PUBLIC) as $method) {
+            // skip parent methods, only methods further down are exported
+            $declaredin = $method->getDeclaringClass()->name;
+            if($declaredin == 'DokuWiki_Plugin' || $declaredin == 'DokuWiki_Remote_Plugin') continue;
+            $method_name = $method->getName();
+            if(substr($method_name, 0, 1) == '_') continue;
+
+            // strip asterisks
+            $doc = $method->getDocComment();
+            $doc = preg_replace(
+                array('/^[ \t]*\/\*+[ \t]*/m', '/[ \t]*\*+[ \t]*/m', '/\*+\/\s*$/m','/\s*\/\s*$/m'),
+                array('', '', '', ''),
+                $doc
+            );
+
+            // prepare data
+            $data = array();
+            $data['name'] = $method_name;
+            $data['public'] = 0;
+            $data['doc'] = $doc;
+            $data['args'] = array();
+
+            // get parameter type from doc block type hint
+            foreach($method->getParameters() as $parameter) {
+                $name = $parameter->getName();
+                $type = 'string'; // we default to string
+                if(preg_match('/^@param[ \t]+([\w|\[\]]+)[ \t]\$'.$name.'/m', $doc, $m)){
+                    $type = $this->cleanTypeHint($m[1]);
+                }
+                $data['args'][] = $type;
+            }
+
+            // get return type from doc block type hint
+            if(preg_match('/^@return[ \t]+([\w|\[\]]+)/m', $doc, $m)){
+                $data['return'] = $this->cleanTypeHint($m[1]);
+            } else {
+                $data['return'] = 'string';
+            }
+
+            // add to result
+            $result[$method_name] = $data;
+        }
+
+        return $result;
+    }
+
+    /**
+     * Matches the given type hint against the valid options for the remote API
+     *
+     * @param $hint
+     * @return string
+     */
+    protected function cleanTypeHint($hint) {
+        $types = explode('|', $hint);
+        foreach($types as $t) {
+            if(substr($t, -2) == '[]') {
+                return 'array';
+            }
+            if($t == 'boolean') {
+                return 'bool';
+            }
+            if(in_array($t, array('array', 'string', 'int', 'double', 'bool', 'null', 'date', 'file'))) {
+                return $t;
+            }
+        }
+        return 'string';
+    }
 
     /**
      * @return RemoteAPI