upd: enforce a more strict Form call pattern.

[gigi.git] / src / org / cacert / gigi / pages / ManagedFormPage.java

diff --git a/src/org/cacert/gigi/pages/ManagedFormPage.java b/src/org/cacert/gigi/pages/ManagedFormPage.java
new file mode 100644 (file)
index 0000000..eabc902
--- /dev/null
+++ b/src/org/cacert/gigi/pages/ManagedFormPage.java
@@ -0,0 +1,33 @@
+package org.cacert.gigi.pages;
+
+import java.io.IOException;
+import java.util.HashMap;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.cacert.gigi.output.template.Form;
+
+public abstract class ManagedFormPage extends Page {
+
+    Class<? extends Form> c;
+
+    public ManagedFormPage(String title, Class<? extends Form> t) {
+        super(title);
+        c = t;
+    }
+
+    @Override
+    public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
+        if (Form.printFormErrors(req, resp.getWriter())) {
+            Form form = Form.getForm(req, c);
+            form.output(resp.getWriter(), getLanguage(req), new HashMap<String, Object>());
+        }
+    }
+
+    @Override
+    public boolean beforePost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
+        return Form.getForm(req, c).submitExceptionProtected(req, resp);
+    }
+
+}