(refs #10) Add notification email form.

src/main/scala/app/SystemSettingsController.scala

@@ -12,15 +12,21 @@ class SystemSettingsController extends SystemSettingsControllerBase
 trait SystemSettingsControllerBase extends ControllerBase with FlashMapSupport {
   self: SystemSettingsService with AccountService with AdminAuthenticator =>
 
-  private case class SystemSettingsForm(
-    allowAccountRegistration: Boolean,
-    gravatar: Boolean
-  )
-
   private val form = mapping(
     "allowAccountRegistration" -> trim(label("Account registration", boolean())),
-    "gravatar"                 -> trim(label("Gravatar", boolean()))
+    "gravatar"                 -> trim(label("Gravatar", boolean())),
-  )(SystemSettingsForm.apply)
+    "notification"             -> trim(label("Notification", boolean())),
+    "smtp"                     -> mapping(
+        "host"     -> trim(label("SMTP Host", text(new Constraint(){
+          def validate(name: String, value: String): Option[String] =
+            if(params.get("notification").exists(_ == "on")) required.validate(name, value) else None
+        }))),
+        "port"     -> trim(label("SMTP Port", optional(number()))),
+        "user"     -> trim(label("SMTP User", optional(text()))),
+        "password" -> trim(label("SMTP Password", optional(text()))),
+        "ssl"      -> trim(label("Enable SSL", optional(boolean())))
+    )(Smtp.apply)
+  )(SystemSettings.apply)
 
 
   get("/admin/system")(adminOnly {
@@ -28,10 +34,7 @@ trait SystemSettingsControllerBase extends ControllerBase with FlashMapSupport {
   })
 
   post("/admin/system", form)(adminOnly { form =>
-    saveSystemSettings(SystemSettings(
+    saveSystemSettings(form)
-      form.allowAccountRegistration,
-      form.gravatar
-    ))
     flash += "info" -> "System settings has been updated."
     redirect("/admin/system")
   })

src/main/scala/service/SystemSettingsService.scala

@@ -9,6 +9,14 @@ trait SystemSettingsService {
     val props = new java.util.Properties()
     props.setProperty(AllowAccountRegistration, settings.allowAccountRegistration.toString)
     props.setProperty(Gravatar, settings.gravatar.toString)
+    props.setProperty(Notification, settings.notification.toString)
+    if(settings.notification) {
+      props.setProperty(SmtpHost, settings.smtp.host)
+      settings.smtp.port.foreach(x => props.setProperty(SmtpPort, x.toString))
+      settings.smtp.user.foreach(props.setProperty(SmtpUser, _))
+      settings.smtp.password.foreach(props.setProperty(SmtpPassword, _))
+      settings.smtp.ssl.foreach(x => props.setProperty(SmtpSsl, x.toString))
+    }
     props.store(new java.io.FileOutputStream(GitBucketConf), null)
   }
 
@@ -19,29 +27,62 @@ trait SystemSettingsService {
       props.load(new java.io.FileInputStream(GitBucketConf))
     }
     SystemSettings(
-      getBoolean(props, AllowAccountRegistration),
+      getValue(props, AllowAccountRegistration, false),
-      getBoolean(props, Gravatar, true))
+      getValue(props, Gravatar, true),
+      getValue(props, Notification, false),
+      Smtp(
+        getValue(props, SmtpHost, ""),
+        getOptionValue(props, SmtpPort, Some(25)),
+        getOptionValue(props, SmtpUser, None),
+        getOptionValue(props, SmtpPassword, None),
+        getOptionValue[Boolean](props, SmtpSsl, None)
+    ))
   }
 
 }
 
 object SystemSettingsService {
+  import scala.reflect.ClassTag
 
   case class SystemSettings(
     allowAccountRegistration: Boolean,
-    gravatar: Boolean
+    gravatar: Boolean,
+    notification: Boolean,
+    smtp: Smtp
   )
+  case class Smtp(
+    host: String,
+    port: Option[Int],
+    user: Option[String],
+    password: Option[String],
+    ssl: Option[Boolean])
 
   private val AllowAccountRegistration = "allow_account_registration"
   private val Gravatar = "gravatar"
+  private val Notification = "notification"
+  private val SmtpHost = "smtp.host"
+  private val SmtpPort = "smtp.port"
+  private val SmtpUser = "smtp.user"
+  private val SmtpPassword = "smtp.password"
+  private val SmtpSsl = "smtp.ssl"
 
-  private def getBoolean(props: java.util.Properties, key: String, default: Boolean = false): Boolean = {
+  private def getValue[A: ClassTag](props: java.util.Properties, key: String, default: A): A = {
     val value = props.getProperty(key)
-    if(value == null || value.isEmpty){
+    if(value == null || value.isEmpty) default
-      default
+    else convertType(value).asInstanceOf[A]
-    } else {
-      value.toBoolean
   }
+
+  private def getOptionValue[A: ClassTag](props: java.util.Properties, key: String, default: Option[A]): Option[A] = {
+    val value = props.getProperty(key)
+    if(value == null || value.isEmpty) default
+    else Some(convertType(value)).asInstanceOf[Option[A]]
+  }
+
+  private def convertType[A: ClassTag](value: String) = {
+    val c = implicitly[ClassTag[A]].runtimeClass
+    if(c == classOf[Boolean])  value.toBoolean
+    else if(c == classOf[Int]) value.toInt
+    else value
   }
 
 }

src/main/twirl/admin/system.scala.html

@@ -27,6 +27,49 @@
               Gravatar
             </label>
           </fieldset>
+          <hr>
+          <label><strong>Notification email</strong></label>
+          <fieldset>
+            <label>
+              <input type="checkbox" id="notification" name="notification"@if(settings.notification){ checked}/>
+              Send notifications
+            </label>
+          </fieldset>
+          <div class="form-horizontal">
+            <div class="control-group">
+              <label class="control-label" for="smtpHost">SMTP Host</label>
+              <div class="controls">
+                <input type="text" id="smtpHost" name="host" value="@settings.smtp.host"/>
+                <span id="error-host" class="error"></span>
+              </div>
+            </div>
+            <div class="control-group">
+              <label class="control-label" for="smtpPort">SMTP Port</label>
+              <div class="controls">
+                <input type="text" id="smtpPort" name="port" class="input-mini" value="@settings.smtp.port"/>
+                <span id="error-port" class="error"></span>
+              </div>
+            </div>
+            <div class="control-group">
+              <label class="control-label" for="smtpUser">SMTP User</label>
+              <div class="controls">
+                <input type="text" id="smtpUser" name="user" value="@settings.smtp.user"/>
+              </div>
+            </div>
+            <div class="control-group">
+              <label class="control-label" for="smtpPassword">SMTP Password</label>
+              <div class="controls">
+                <input type="password" id="smtpPassword" name="password" value="@settings.smtp.password"/>
+              </div>
+            </div>
+            <div class="control-group">
+              <div class="controls">
+                <label class="checkbox">
+                  <input type="checkbox" name="ssl"@if(settings.smtp.ssl == Some(true)){ checked}/> Enable SSL
+                </label>
+              </div>
+            </div>
+          </div>
         </div>
       </div>
       <fieldset>
@@ -35,3 +78,10 @@
     </form>
   }
 }
+<script>
+$(function(){
+  $('#notification').change(function(){
+    $('.form-horizontal input').prop('disabled', !$(this).prop('checked'));
+  }).change();
+});
+</script>