Added dedicated server crash reports

server/src/io/anuke/mindustry/server/CrashHandler.java

@@ -0,0 +1,70 @@
+package io.anuke.mindustry.server;
+
+import com.badlogic.gdx.utils.JsonValue;
+import com.badlogic.gdx.utils.JsonValue.ValueType;
+import com.badlogic.gdx.utils.JsonWriter.OutputType;
+import io.anuke.mindustry.Vars;
+import io.anuke.mindustry.game.Version;
+import io.anuke.mindustry.net.Net;
+import io.anuke.ucore.core.Settings;
+import io.anuke.ucore.util.Log;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+public class CrashHandler{
+
+    public static void handle(Throwable e){
+        e.printStackTrace();
+
+        //don't create crash logs for me (anuke), as it's expected
+        //also don't create logs for custom builds
+        if(System.getProperty("user.name").equals("anuke") || Version.build == -1) return;
+
+        //if getting the crash report property failed, OR if it set to false... don't send it
+        try{
+            if(!Settings.getBool("crashreport")) return;
+        }catch(Throwable ignored){
+            return;
+        }
+
+        //attempt to close connections, if applicable
+        try{
+            Net.dispose();
+        }catch(Throwable p){
+            p.printStackTrace();
+        }
+
+        JsonValue value = new JsonValue(ValueType.object);
+
+        //add all relevant info, ignoring exceptions
+        ex(() -> value.addChild("build", new JsonValue(Version.build)));
+        ex(() -> value.addChild("mode", new JsonValue(Vars.state.mode.toString())));
+        ex(() -> value.addChild("difficulty", new JsonValue(Vars.state.difficulty.toString())));
+        ex(() -> value.addChild("players", new JsonValue(Vars.playerGroup.size())));
+        ex(() -> value.addChild("os", new JsonValue(System.getProperty("os.name"))));
+        ex(() -> value.addChild("trace", new JsonValue(parseException(e))));
+
+        Log.info("&lcSending crash report.");
+        //post to crash report URL
+        Net.http(Vars.crashReportURL, "POST", value.toJson(OutputType.json), r -> System.exit(1), t -> System.exit(1));
+
+        //sleep forever
+        try{ Thread.sleep(Long.MAX_VALUE); }catch(InterruptedException ignored){}
+    }
+
+    private static String parseException(Throwable e){
+        StringWriter sw = new StringWriter();
+        PrintWriter pw = new PrintWriter(sw);
+        e.printStackTrace(pw);
+        return sw.toString();
+    }
+
+    private static void ex(Runnable r){
+        try{
+            r.run();
+        }catch(Throwable t){
+            t.printStackTrace();
+        }
+    }
+}