diff -r 0a2ad22ac656 -r 94f174d591ab src/main/kotlin/de/uapcore/lightpit/RequestMapping.kt
--- a/src/main/kotlin/de/uapcore/lightpit/RequestMapping.kt	Thu May 13 18:01:56 2021 +0200
+++ b/src/main/kotlin/de/uapcore/lightpit/RequestMapping.kt	Thu May 13 19:31:09 2021 +0200
@@ -86,6 +86,12 @@
             request.setAttribute(Constants.REQ_ATTR_REDIRECT_LOCATION, baseHref + value)
         }
 
+    var feedPath = ""
+        set(value) {
+            field = value
+            request.setAttribute(Constants.REQ_ATTR_FEED_HREF, baseHref + value)
+        }
+
     /**
      * The view object.
      *
@@ -98,9 +104,21 @@
         }
 
     /**
+     * Additional port info, if necessary.
+     */
+    private val portInfo =
+        if ((request.scheme == "http" && request.serverPort == 80)
+            || (request.scheme == "https" && request.serverPort == 443)
+        ) "" else ":${request.serverPort}"
+
+    /**
      * The base path of this application.
      */
-    val baseHref get() = "${request.scheme}://${request.serverName}:${request.serverPort}${request.contextPath}/"
+    val baseHref get() = "${request.scheme}://${request.serverName}$portInfo${request.contextPath}/"
+
+    init {
+        feedPath = "feed/projects.rss"
+    }
 
     private fun String.withExt(ext: String) = if (endsWith(ext)) this else plus(ext)
     private fun jspPath(name: String) = Constants.JSP_PATH_PREFIX.plus(name).withExt(".jsp")
@@ -108,10 +126,15 @@
     fun param(name: String): String? = request.getParameter(name)
     fun paramArray(name: String): Array<String> = request.getParameterValues(name) ?: emptyArray()
 
-    fun forward(jsp: String) {
+    private fun forward(jsp: String) {
         request.getRequestDispatcher(jspPath(jsp)).forward(request, response)
     }
 
+    fun renderFeed(page: String? = null) {
+        page?.let { contentPage = it }
+        forward("feed")
+    }
+
     fun render(page: String? = null) {
         page?.let { contentPage = it }
         forward("site")