diff --git a/main.js b/main.js
index 408e24b..12d7fd5 100644
--- a/main.js
+++ b/main.js
@@ -78,22 +78,22 @@ function VerifyJsonSignature(json) {
 }
 
 let ActionCode = {
-    "ServerMessage": 0,
-
-    "Declare": 200,
-    "ObjectResponse": 201,
-
-    "BulletinRequest": 211,
-    "BulletinFileRequest": 212,
-
-    "ChatDH": 221,
-    "ChatMessage": 222,
-    "ChatSync": 223,
-
-    "GroupRequest": 231,
-    "GroupManageSync": 232,
-    "GroupDH": 233,
-    "GroupMessageSync": 234
+    "Declare": 100,
+    "ObjectResponse": 101,
+
+    "BulletinRequest": 201,
+    "BulletinFileRequest": 202,
+
+    "ChatDH": 301,
+    "ChatMessage": 302,
+    "ChatSync": 303,
+    "PrivateFileRequest": 304,
+
+    "GroupRequest": 401,
+    "GroupManageSync": 402,
+    "GroupDH": 403,
+    "GroupMessageSync": 404,
+    "GroupFileRequest": 405
 }
 
 //message
@@ -111,11 +111,14 @@ const MessageCode = {
 }
 
 const ObjectType = {
-    "Bulletin": 111,
-    "BulletinFile": 112,
+    "Bulletin": 101,
+    "BulletinFile": 102,
+
+    "PrivateFile": 201,
 
-    "GroupManage": 131,
-    "GroupMessage": 132
+    "GroupManage": 301,
+    "GroupMessage": 302,
+    "GroupFile": 303
 }
 
 function strServerMessage(msgCode) {
@@ -304,7 +307,7 @@ function startClientServer() {
         ClientServer = new WebSocket.Server({
             port: 3000, //to bind on 80, must use 'sudo node main.js'
             clientTracking: true,
-            maxPayload: 102400
+            maxPayload: 150 * 1024
         })
 
         ClientServer.on('connection', function connection(ws) {
diff --git a/schema.js b/schema.js
index 3fd6e9d..0053556 100644
--- a/schema.js
+++ b/schema.js
@@ -76,7 +76,7 @@ let BulletinRequestSchema = {
   }
 }
 
-let BulletinFileRequestSchema = {
+let FileRequestSchema = {
   "type": "object",
   "required": ["Action", "SHA1", "CurrentChunk", "To", "Timestamp", "PublicKey", "Signature"],
   "maxProperties": 7,
@@ -343,7 +343,7 @@ var vDeclare = ajv.compile(DeclareSchema)
 var vObjectResponseSchema = ajv.compile(ObjectResponseSchema)
 
 var vBulletinRequestSchema = ajv.compile(BulletinRequestSchema)
-var vBulletinFileRequestSchema = ajv.compile(BulletinFileRequestSchema)
+var vFileRequestSchema = ajv.compile(FileRequestSchema)
 
 var vChatMessageSchema = ajv.compile(ChatMessageSchema)
 var vChatSyncSchema = ajv.compile(ChatSyncSchema)
@@ -358,7 +358,7 @@ function checkClientSchema(strJson) {
   if (typeof strJson == "string") {
     try {
       let json = JSON.parse(strJson)
-      if (vObjectResponseSchema(json) || vBulletinRequestSchema(json) || vBulletinFileRequestSchema(json) || vChatMessageSchema(json) || vChatSyncSchema(json) || vChatDHSchema(json) || vDeclare(json) || vGroupRequestSchema(json) || vGroupManageSyncSchema(json) || vGroupDHSchema(json) || vGroupMessageSyncSchema(json)) {
+      if (vObjectResponseSchema(json) || vBulletinRequestSchema(json) || vFileRequestSchema(json) || vChatMessageSchema(json) || vChatSyncSchema(json) || vChatDHSchema(json) || vDeclare(json) || vGroupRequestSchema(json) || vGroupManageSyncSchema(json) || vGroupDHSchema(json) || vGroupMessageSyncSchema(json)) {
         return json
       } else {
         return false