Add SignInController.

src/main/scala/ScalatraBootstrap.scala

@@ -5,6 +5,7 @@ import javax.servlet._
 class ScalatraBootstrap extends LifeCycle {
   override def init(context: ServletContext) {
     context.mount(new IndexController, "/")
+    context.mount(new SignInController, "/*")
     context.mount(new WikiController, "/*")
     context.mount(new CreateRepositoryController, "/*")
     context.mount(new RepositoryViewerController, "/*")

src/main/scala/app/SignInController.scala

@@ -0,0 +1,21 @@
+package app
+
+import jp.sf.amateras.scalatra.forms._
+
+class SignInController extends ControllerBase {
+  
+  case class SignInForm(email: String, password: String)
+  
+  val form = mapping(
+    "email"    -> trim(label("Email",    text(required))), 
+    "password" -> trim(label("Password", text(required)))
+  )(SignInForm.apply)
+  
+  get("/signin"){
+    html.signin()
+  }
+
+  post("/signin", form){ form =>
+    redirect("/%s".format(context.loginUser))
+  }
+}

src/main/twirl/signin.scala.html

@@ -0,0 +1,15 @@
+@()(implicit context: app.Context)
+@import context._
+@main("Sign in"){
+  <form action="@path/signin" method="POST" validate="true">
+    <label for="email">Email</label>
+    <input type="text" name="email" id="email"/>
+    <span id="error-email" class="error-message"></span>
+    <label for="password">Password</label>
+    <input type="password" name="password" id="password"/>
+    <span id="error-password" class="error-message"></span>
+    <div>
+      <input type="submit" class="btn btn-primary" value="Sign in"/>
+    </div>
+  </form>
+}