From 5f086bd47a462265b568cddd77f9af1f6a06633f Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Thu, 16 Jan 2020 12:15:36 +0100
Subject: Deserialize Strings to UTF-8 byte[]

---
 .../taskmanager/util/ByteArrayDeserializer.java    | 31 ++++++++++++++++++++++
 .../java/org/openslx/taskmanager/util/Util.java    |  5 +++-
 2 files changed, 35 insertions(+), 1 deletion(-)
 create mode 100644 daemon/src/main/java/org/openslx/taskmanager/util/ByteArrayDeserializer.java

diff --git a/daemon/src/main/java/org/openslx/taskmanager/util/ByteArrayDeserializer.java b/daemon/src/main/java/org/openslx/taskmanager/util/ByteArrayDeserializer.java
new file mode 100644
index 0000000..bb2631f
--- /dev/null
+++ b/daemon/src/main/java/org/openslx/taskmanager/util/ByteArrayDeserializer.java
@@ -0,0 +1,31 @@
+package org.openslx.taskmanager.util;
+
+import java.lang.reflect.Type;
+import java.nio.charset.StandardCharsets;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonDeserializationContext;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonParseException;
+
+public class ByteArrayDeserializer implements JsonDeserializer<byte[]>
+{
+
+	@Override
+	public byte[] deserialize( JsonElement json, Type typeOfT, JsonDeserializationContext context ) throws JsonParseException
+	{
+		if ( json.isJsonArray() ) {
+			JsonArray ja = json.getAsJsonArray();
+			int len = ja.size();
+			byte[] ba = new byte[ len ];
+			int i = 0;
+			for ( JsonElement el : ja ) {
+				ba[i++] = el.getAsByte();
+			}
+			return ba;
+		}
+		return json.getAsString().getBytes( StandardCharsets.UTF_8 );
+	}
+
+}
diff --git a/daemon/src/main/java/org/openslx/taskmanager/util/Util.java b/daemon/src/main/java/org/openslx/taskmanager/util/Util.java
index 361c0e5..92602ff 100644
--- a/daemon/src/main/java/org/openslx/taskmanager/util/Util.java
+++ b/daemon/src/main/java/org/openslx/taskmanager/util/Util.java
@@ -18,7 +18,10 @@ public class Util
 	 */
 	public static Gson explicitGsonInstance()
 	{
-		return gsonBuilder.excludeFieldsWithoutExposeAnnotation().create();
+		return gsonBuilder
+				.excludeFieldsWithoutExposeAnnotation()
+				.registerTypeAdapter( byte[].class, new ByteArrayDeserializer() )
+				.create();
 	}
 	
 	public static int parseInt(String str, int def)
-- 
cgit v1.2.3-55-g7522