diff --git a/forwarder.py b/forwarder.py
index d78a90b..3cd2680 100644
--- a/forwarder.py
+++ b/forwarder.py
@@ -36,7 +36,7 @@ def send_queue_function():
                 object_app, new_dp = process_reforware(new_dp)
                 receive_queues[add_plugins_string(object_app)].put(new_dp)
         else:
-            object_app, dp =process_reforware(dp)
+            object_app, dp = process_reforware(dp)
             receive_queues[add_plugins_string(object_app)].put(dp)
 
 
diff --git a/plugins/input.py b/plugins/input.py
index d487bb8..68eb346 100644
--- a/plugins/input.py
+++ b/plugins/input.py
@@ -7,9 +7,9 @@ receive_queue = receive_queues[__name__]
 
 
 def main():
-    file_flag = False;
+    file_flag = False
     while True:
-        file_flag = False;
+        file_flag = False
         raw_data = input()
 
         if raw_data[:6] == '(file)':
@@ -44,7 +44,10 @@ def find_the_last(indata):  # find the last ":" index
             break
     last_index = copy.copy(first_index)
     last_index += 1
-    while indata[last_index] == ' ':
+    try:
+        while indata[last_index] == ' ':
+            last_index += 1
+    except IndexError:
         last_index += 1
     return first_index, last_index
 
diff --git a/plugins/net.py b/plugins/net.py
index 6bafcf1..e624e00 100644
--- a/plugins/net.py
+++ b/plugins/net.py
@@ -94,6 +94,12 @@ class Netrecv:
     def check_send_queue(self):
         while True:
             dp = receive_queue.get()
+
+            # debug code
+            if dp.body == b'stat':
+                print(self.stat)
+                continue
+
             if dp.method == 'file':
                 print('right')
                 print(dp.head)
@@ -104,7 +110,7 @@ class Netrecv:
                         file = open(dp.head['filename'], 'rb')
                         for data in file:
                             conn.send(data)
-                            print('sended')
+                        print('sended')
 
             else:
                 print('wrong')
@@ -125,11 +131,20 @@ class Netrecv:
         conn.close()
         for id in self.stat:
             if (conn, addr) in self.stat[id]:
-                self.stat[id].remove(conn, addr)
+                self.stat[id].remove((conn, addr))
         self.connection_list.remove((conn, addr))
         print('Removed connection', str(addr))
 
+    def say_hello(self, conn, addr):
+        dp = Datapack(head={'from': __name__})
+        dp.app = 'net'
+        dp.encode()
+        conn.sendall(dp.encode_data)
+        print('hello package has been sent')
+
     def process_connection(self, conn, addr):
+        self.say_hello(conn, addr)
+
         print('Connection accept %s' % str(addr))
         data = b''
         while True:
@@ -164,6 +179,20 @@ class Netrecv:
                     break
                 # try unpack #
 
+                # net config data package
+                if dp.app == 'net':
+
+                    dp_id = dp.head['id']
+                    local_id = self.stat.get(dp_id)
+
+                    if not local_id:  # create if not exits
+                        self.stat[dp_id] = []
+
+                    if not (conn, addr) in self.stat[dp_id]:
+                        self.stat[dp_id].append((conn, addr))
+
+                    continue
+
                 if dp.method == 'file':
                     length = int(dp.head['length'])
                     data_length = len(data)
@@ -262,21 +291,9 @@ class Netrecv:
                         dp.body = data[:length]
                         data = data[length:]
 
-                    # net config data package
-                    if dp.app == 'net':
-                        dp_id = dp.head['id']
-                        local_id = self.stat.get(dp_id)
-
-                        if not local_id:  # create if not exits
-                            self.stat[dp_id] = []
-
-                        if not (conn, addr) in self.stat[dp_id]:
-                            self.stat[dp_id].append((conn, addr))
-
-                    else:
-                        dp.encode()
-                        send_queue.put(dp)
-                        print('###############\n' + dp.encode_data.decode() + '\n###############')
+                    dp.encode()
+                    send_queue.put(dp)
+                    print('###############\n' + dp.encode_data.decode() + '\n###############')
 
 
 thread = threading.Thread(target=main, args=())
diff --git a/plugins/update.py b/plugins/update.py
index 6090931..d4f542d 100644
--- a/plugins/update.py
+++ b/plugins/update.py
@@ -6,15 +6,42 @@ from forwarder import receive_queues, send_queue
 receive_queue = receive_queues[__name__]
 
 
-remove_file_list = ['__init__.py']
+remove_file_list = ['__init__.py', 'netlist.txt', 'config.json', 'logger.log']
 remove_dir_list = ['.git', '.idea', '__pycache__']
 
 
 def main():
     while True:
         dp = receive_queue.get()
-        dp.encode()
-        print(dp.encode_data.decode())
+
+        if dp.method == 'post':
+            if dp.body == b'compress':
+                print('Starting update')
+                compress = Compresser()
+                filelist = compress.get_filelist()
+                compress.compress_files(filelist)
+                print('Compress finished')
+
+            elif dp.body == b'all':
+                print('Start update other client')
+                compress = Compresser()
+                filelist = compress.get_filelist()
+                compress.compress_files(filelist)
+                print('Compress finished')
+
+                dp = Datapack(head={'from': __name__})
+                dp.method = 'file'
+                dp.app = 'net:update'
+                dp.head['filename'] = 'resources/update.tar.xz'
+
+                dp.encode()
+
+                send_queue.put(dp)
+
+        elif dp.method == 'file':
+            print('Starting update local file')
+            with tarfile.open(dp.head['filename'], 'r:xz') as f:
+                f.extractall()
 
 
 
@@ -23,7 +50,7 @@ class Compresser:
         self.filelist = []
 
     def compress_files(self, filelist):
-        with tarfile.open('update.tar.xz', 'w:xz') as f:
+        with tarfile.open('resources/update.tar.xz', 'w:xz') as f:
             for name in filelist:
                 f.add(name)
 
diff --git a/test_tool.py b/test_tool.py
index f0c15b5..f02d4d4 100644
--- a/test_tool.py
+++ b/test_tool.py
@@ -7,7 +7,7 @@ s.bind(('127.0.0.1', 3966))
 s.listen(100)
 
 id = '''post net msw/1.0
-id: miku
+id: miku2
 from: test
 length: 0
 
@@ -23,8 +23,13 @@ def process(conn, addr):
         if not data:
             conn.close()
             return
-        data = data.decode()
-        print(data)
+        try:
+            data = data.decode()
+            print(data)
+        except UnicodeDecodeError:
+            print('Decode error')
+            print(data[:39])
+
 
 
 while True: