From 068746b52c945d1de146d1aac5abd6e1c4b2719c Mon Sep 17 00:00:00 2001
From: Alexis Hernandez <alexis22229@gmail.com>
Date: Sat, 10 Mar 2018 22:12:12 -0600
Subject: [PATCH] server: Add custom play HttpErrorHandler

---
 .../explorer/play/MyHttpErrorHandler.scala    | 41 +++++++++++++++++++
 server/conf/application.conf                  |  4 ++
 2 files changed, 45 insertions(+)
 create mode 100644 server/app/com/xsn/explorer/play/MyHttpErrorHandler.scala

diff --git a/server/app/com/xsn/explorer/play/MyHttpErrorHandler.scala b/server/app/com/xsn/explorer/play/MyHttpErrorHandler.scala
new file mode 100644
index 0000000..11ff514
--- /dev/null
+++ b/server/app/com/xsn/explorer/play/MyHttpErrorHandler.scala
@@ -0,0 +1,41 @@
+package com.xsn.explorer.play
+
+import javax.inject.Inject
+
+import com.alexitc.playsonify.PublicErrorRenderer
+import com.alexitc.playsonify.models.{ErrorId, PublicError}
+import org.slf4j.LoggerFactory
+import play.api.http.HttpErrorHandler
+import play.api.libs.json.Json
+import play.api.mvc.RequestHeader
+import play.api.mvc.Results.{InternalServerError, Status}
+
+import scala.concurrent.Future
+
+class MyHttpErrorHandler @Inject() (errorRenderer: PublicErrorRenderer) extends HttpErrorHandler {
+
+  private val logger = LoggerFactory.getLogger(this.getClass)
+
+  def onClientError(request: RequestHeader, statusCode: Int, message: String) = {
+    val publicError = PublicError.genericError(message)
+    val error = errorRenderer.renderPublicError(publicError)
+    val json = Json.obj(
+      "errors" -> Json.arr(error)
+    )
+
+    val result = Status(statusCode)(json)
+    Future.successful(result)
+  }
+
+  def onServerError(request: RequestHeader, exception: Throwable) = {
+    val errorId = ErrorId.create
+    val error = errorRenderer.renderPrivateError(errorId)
+    val json = Json.obj(
+      "errors" -> Json.arr(error)
+    )
+
+    logger.error(s"Server error, errorId = [${errorId.string}]", exception)
+    val result = InternalServerError(json)
+    Future.successful(result)
+  }
+}
diff --git a/server/conf/application.conf b/server/conf/application.conf
index a45d5b6..837dffb 100644
--- a/server/conf/application.conf
+++ b/server/conf/application.conf
@@ -6,6 +6,10 @@ play.filters.hosts {
   allowed = ["localhost", "localhost:9000", "127.0.0.1:9000"]
 }
 
+play.http {
+  errorHandler = "com.xsn.explorer.play.MyHttpErrorHandler"
+}
+
 rpc {
   host = "http://localhost:51473"
   username = "dummy"