remove entries with invalid data

ghost.lua

@@ -123,9 +123,16 @@ Ghosts = {
 		this:reset()
 
 		local headers = Index:getMap(gamemap, mapChecksum(gamemap))
-		local data
+		local ok, data
 		for _, header in ipairs(headers) do
-			data = Ghost.read(header, Ghost.tableReader)
+			ok, data = pcall(Ghost.read, header, Ghost.tableReader)
+			if not ok then
+				print(data)
+				print("\x85\ERROR:\x80 invalid ghost data, removing entry")
+				Index:remove(header)
+				Index:write()
+				continue
+			end
 			this:set(header, data)
 		end
 	end,
@@ -406,6 +413,10 @@ Server = {
 
 		transmitters = {},
 		callback = function(cmd, handle)
+			if handle.transmitters[cmd] then
+				return
+			end
+
 			local mapindex = Index:getMap(gamemap, mapChecksum(gamemap))
 			local header = assert(mapindex[tonumber(cmd)])
 			local data = Ghost.read(header, Ghost.stringReader)
@@ -579,7 +590,7 @@ local function open(filename, mode, fn)
 	f:close()
 
 	if not ok then
-		err = string.format("%s\n(%s (%s))", err, filename, mode)
+		err = string.format("%s\n(\x82%s\x80 (%s))", err, filename, mode)
 	end
 
 	return ok, err
@@ -602,6 +613,17 @@ Index = {
 		this:setMap(header.map, header.checksum, map)
 	end,
 
+	remove = function(this, header)
+		local map = this:getMap(header.map, header.checksum)
+		for i, h in ipairs(map) do
+			if h.player == header.player then
+				map[i] = nil
+				this:setMap(header.map, header.checksum, map)
+				return
+			end
+		end
+	end,
+
 	find = function(this, header)
 		local index = this:getMap(header.map, header.checksum)
 		for i, h in ipairs(index) do
@@ -645,10 +667,10 @@ Index = {
 			map = c:next(),
 			checksum = c:next(),
 			player = c:next(),
-			time = c:next(),
+			time = tonumber(c:next()),
-			flags = c:next(),
+			flags = tonumber(c:next()),
 			skin = c:next(),
-			color = c:next()
+			color = tonumber(c:next())
 		}
 	end,