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, 52 insertions, 0 deletions

diff --git a/src/com/p4square/grow/frontend/LoginAuthenticator.java b/src/com/p4square/grow/frontend/LoginAuthenticator.java
new file mode 100644
index 0000000..64f5827
--- /dev/null
+++ b/src/com/p4square/grow/frontend/LoginAuthenticator.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2013 Jesse Morgan
+ */
+
+package com.p4square.grow.frontend;
+
+import org.apache.log4j.Logger;
+
+import org.restlet.Context;
+import org.restlet.Request;
+import org.restlet.Response;
+import org.restlet.security.Authenticator;
+import org.restlet.security.User;
+
+/**
+ * LoginAuthenticator decrypts a cookie containing the user's session info
+ * and makes that information available as the ClientInfo's User object.
+ *
+ * If this Authenticator is not optional, the user will be redirected to a
+ * login page.
+ *
+ * @author Jesse Morgan <jesse@jesterpm.net>
+ */
+public class LoginAuthenticator extends Authenticator {
+    private static Logger cLog = Logger.getLogger(LoginAuthenticator.class);
+
+    public static final String COOKIE_NAME = "growsession";
+
+    private final String mLoginPage;
+
+    public LoginAuthenticator(Context context, boolean optional, String loginPage) {
+        super(context, optional);
+
+        mLoginPage = loginPage;
+    }
+
+    protected boolean authenticate(Request request, Response response) {
+        // Check for authentication cookie
+        final String cookie = request.getCookies().getFirstValue(COOKIE_NAME);
+        if (cookie != null) {
+            cLog.debug("Got cookie: " + cookie);
+            // TODO Decrypt user info
+            User user = new User(cookie);
+            request.getClientInfo().setUser(user);
+            return true;
+        }
+
+        // Challenge the user if not authenticated
+        response.redirectSeeOther(mLoginPage);
+        return false;
+    }
+}