X-Git-Url: https://gerrit.akraino.org/r/gitweb?a=blobdiff_plain;f=src%2Ffoundation%2Fapi%2Frevel%2Fpanic.go;fp=src%2Ffoundation%2Fapi%2Frevel%2Fpanic.go;h=464f2defecb7fc9e5601494fee4df6eed4c43a63;hb=1d1ee6961c93781e1187d8c7faa868da6b2f01f4;hp=0000000000000000000000000000000000000000;hpb=56dd5e0f2164b37b40ac1daa188ccc618b4cbd19;p=iec.git

diff --git a/src/foundation/api/revel/panic.go b/src/foundation/api/revel/panic.go
new file mode 100644
index 0000000..464f2de
--- /dev/null
+++ b/src/foundation/api/revel/panic.go
@@ -0,0 +1,50 @@
+// Copyright (c) 2012-2016 The Revel Framework Authors, All rights reserved.
+// Revel Framework source code and usage is governed by a MIT style
+// license that can be found in the LICENSE file.
+
+package revel
+
+import (
+	"fmt"
+	"net/http"
+	"runtime/debug"
+)
+
+// PanicFilter wraps the action invocation in a protective defer blanket that
+// converts panics into 500 error pages.
+func PanicFilter(c *Controller, fc []Filter) {
+	defer func() {
+		if err := recover(); err != nil {
+			handleInvocationPanic(c, err)
+		}
+	}()
+	fc[0](c, fc[1:])
+}
+
+// This function handles a panic in an action invocation.
+// It cleans up the stack trace, logs it, and displays an error page.
+func handleInvocationPanic(c *Controller, err interface{}) {
+	error := NewErrorFromPanic(err)
+	if error != nil {
+		utilLog.Error("PanicFilter: Caught panic", "error", err, "stack", error.Stack)
+		if DevMode {
+			fmt.Println(err)
+			fmt.Println(error.Stack)
+		}
+	} else {
+		utilLog.Error("PanicFilter: Caught panic, unable to determine stack location", "error", err, "stack", string(debug.Stack()))
+		if DevMode {
+			fmt.Println(err)
+			fmt.Println("stack", string(debug.Stack()))
+		}
+	}
+
+	if error == nil && DevMode {
+		// Only show the sensitive information in the debug stack trace in development mode, not production
+		c.Response.SetStatus(http.StatusInternalServerError)
+		_, _ = c.Response.GetWriter().Write(debug.Stack())
+		return
+	}
+
+	c.Result = c.RenderError(error)
+}