Added partial support for action resend. Fix crush on incorrect encrypted message in lua mode

encrypted_scheme17.tl

@@ -24,6 +24,7 @@ decryptedMessageActionScreenshotMessages#8ac1f475 random_ids:Vector<long> = Decr
 decryptedMessageActionFlushHistory#6719e45c = DecryptedMessageAction;
 decryptedMessageActionNotifyLayer#f3048883 layer:int = DecryptedMessageAction;
 
+decryptedMessageActionResend#511110b0 start_seq_no:int end_seq_no:int = DecryptedMessageAction;
 
 decryptedMessageActionTyping#ccb27641 action:SendMessageAction = DecryptedMessageAction;
 

interface.c

@@ -2612,6 +2612,9 @@ void print_service_message (struct in_ev *ev, struct tgl_message *M) {
   case tgl_message_action_flush_history:
     mprintf (ev, " cleared history\n");
     break;
+  case tgl_message_action_resend:
+    mprintf (ev, " resend query\n");
+    break;
   case tgl_message_action_notify_layer:
     mprintf (ev, " updated layer to %d\n", M->action.layer);
     break;

lua-tg.c

@@ -295,6 +295,7 @@ void push_message (struct tgl_message *M) {
   static char s[30];
   snprintf (s, 30, "%lld", M->id);
   lua_add_string_field ("id", s);
+  if (!(M->flags & FLAG_CREATED)) { return; }
   lua_add_num_field ("flags", M->flags);
  
   if (tgl_get_peer_type (M->fwd_from_id)) {

structures.c

@@ -1010,6 +1010,11 @@ void tglf_fetch_message_action_encrypted (struct tgl_state *TLS, struct tgl_mess
     M->type = tgl_message_action_typing;
     M->typing = tglf_fetch_typing ();
     break;
+  case CODE_decrypted_message_action_resend:
+    M->type = tgl_message_action_resend;
+    M->start_seq_no = fetch_int ();
+    M->end_seq_no = fetch_int ();
+    break;
   default:
     vlogprintf (E_ERROR, "x = 0x%08x\n", x);
     assert (0);
@@ -1250,10 +1255,11 @@ void tglf_fetch_encrypted_message (struct tgl_state *TLS, struct tgl_message *M)
       vlogprintf (E_DEBUG - 2, "layer = %d, in = %d, out = %d\n", layer, in_seq_no, out_seq_no);
     }
     if (!(x == CODE_decrypted_message || x == CODE_decrypted_message_service || x == CODE_decrypted_message_l16 || x == CODE_decrypted_message_service_l16)) {
-      vlogprintf (E_ERROR, "x = 0x%08x\n", x);
+      vlogprintf (E_ERROR, "Incorrect message: x = 0x%08x\n", x);
-      assert (x == CODE_decrypted_message || x == CODE_decrypted_message_service || x == CODE_decrypted_message_l16 || x == CODE_decrypted_message_service_l16);
+      drop = 1;
     }
     //assert (id == fetch_long ());
+    if (!drop) { 
       long long new_id = fetch_long ();
       if (P && P->encr_chat.layer >= 17) {
         assert (new_id == id);
@@ -1280,6 +1286,7 @@ void tglf_fetch_encrypted_message (struct tgl_state *TLS, struct tgl_message *M)
         }
         end = in_ptr;
       }
+    }
     in_ptr = save_in_ptr;
     in_end = save_in_end;
   } 
@@ -1661,6 +1668,7 @@ void tgls_free_message_action (struct tgl_state *TLS, struct tgl_message_action
   case tgl_message_action_delete_messages:
   case tgl_message_action_screenshot_messages:
   case tgl_message_action_flush_history:
+  case tgl_message_action_resend:
   case tgl_message_action_notify_layer:
     break;
   

tgl-layout.h

@@ -119,6 +119,7 @@ enum tgl_message_action_type {
   tgl_message_action_delete_messages,
   tgl_message_action_screenshot_messages,
   tgl_message_action_flush_history,
+  tgl_message_action_resend,
   tgl_message_action_notify_layer,
   tgl_message_action_typing
 };
@@ -386,6 +387,10 @@ struct tgl_message_action {
     int delete_cnt;
     int screenshot_cnt;
     enum tgl_typing_status typing;
+    struct {
+      int start_seq_no;
+      int end_seq_no;
+    };
   };
 };