Adding Login logic and updating navigation.

Adding a LoginAuthenticator to parse session cookies and a
LoginPageResource to handle submissions to the login page.
Also updating the navigation header to show Take Assessment when the
user is authenticated.

1 files changed, 103 insertions, 0 deletions

diff --git a/src/com/p4square/grow/frontend/LoginPageResource.java b/src/com/p4square/grow/frontend/LoginPageResource.java
new file mode 100644
index 0000000..ac9f651
--- /dev/null
+++ b/src/com/p4square/grow/frontend/LoginPageResource.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2013 Jesse Morgan
+ */
+
+package com.p4square.grow.frontend;
+
+import java.util.Map;
+
+import freemarker.template.Template;
+
+import org.restlet.data.Form;
+import org.restlet.data.MediaType;
+import org.restlet.data.Status;
+import org.restlet.resource.ServerResource;
+import org.restlet.representation.Representation;
+import org.restlet.ext.freemarker.TemplateRepresentation;
+
+import org.apache.log4j.Logger;
+
+import net.jesterpm.fmfacade.FreeMarkerPageResource;
+
+/**
+ * LoginPageResource presents a login page template and processes the response.
+ * Upon successful authentication, the user is redirected to another page and
+ * a cookie is set.
+ *
+ * @author Jesse Morgan <jesse@jesterpm.net>
+ */
+public class LoginPageResource extends FreeMarkerPageResource {
+    private static Logger cLog = Logger.getLogger(LoginPageResource.class);
+
+    private GrowFrontend mGrowFrontend;
+
+    private String mErrorMessage;
+
+    @Override
+    public void doInit() {
+        super.doInit();
+
+        mGrowFrontend = (GrowFrontend) getApplication();
+
+        mErrorMessage = null;
+    }
+
+    /**
+     * Return the login page.
+     */
+    @Override
+    protected Representation get() {
+        Template t = mGrowFrontend.getTemplate("pages/login.html.ftl");
+
+        try {
+            if (t == null) {
+                setStatus(Status.CLIENT_ERROR_NOT_FOUND);
+                return null;
+            }
+
+            Map<String, Object> root = getRootObject();
+
+            root.put("errorMessage", mErrorMessage);
+
+            return new TemplateRepresentation(t, root, MediaType.TEXT_HTML);
+
+        } catch (Exception e) {
+            cLog.fatal("Could not render page: " + e.getMessage(), e);
+            setStatus(Status.SERVER_ERROR_INTERNAL);
+            return null;
+        }
+    }
+
+    /**
+     * Process login and authenticate the user.
+     */
+    @Override
+    protected Representation post(Representation entity) {
+        final Form form = new Form(entity);
+        final String email = form.getFirstValue("email");
+        final String password = form.getFirstValue("password");
+
+        boolean authenticated = false;
+
+        // TODO: Do something real here
+        if (email != null && !"".equals(email)) {
+            cLog.debug("Got login request from " + email);
+
+            // TODO: Encrypt user info
+            getResponse().getCookieSettings().add(LoginAuthenticator.COOKIE_NAME, email);
+
+            authenticated = true;
+        }
+
+        if (authenticated) {
+            // TODO: Better return url.
+            getResponse().redirectSeeOther("/index.html");
+            return null;
+
+        } else {
+            // Send them back to the login page...
+            mErrorMessage = "Incorrect Email or Password.";
+            return get();
+        }
+    }
+}