Check player name (see README.md)

README.md

@@ -20,6 +20,10 @@ Disclaimer: we have not developed all of the scripts in this project.
 - Server restart alert
 - Drift mode! `Numpad 9` to toggle the script and press `Left Shift` to drift
 - Firendly NPCs!
+- Many checks for the player name
+	- checks if the first and surname starts with a capital letter
+	- checks for special characters
+	- checks for short / long names
 
 ### Requirements
 - ES

__resource.lua

@@ -17,7 +17,8 @@ server_scripts {
 	"server/discordbot_server.lua",
 	"server/gpstools-server.lua",
 	"server/commands-server.lua",
-	"server/restart_alert-server.lua"
+	"server/restart_alert-server.lua",
+	"server/check_name-server.lua"
 }
 
 client_scripts {

server/check_name-server.lua

@@ -0,0 +1,72 @@
+AddEventHandler('playerConnecting', function(name, setCallback, deferrals)
+	-- Mark this connection as deferred, this is to prevent problems while checking player identifiers.
+	deferrals.defer()
+
+	-- Save source in case we somehow lose it (which happens a lot)
+	local _source = source
+
+	-- Letting the user know what's going on.
+	deferrals.update('Validating player name . . .')
+
+	-- Needed, not sure why.
+	Citizen.Wait(100)
+
+	local playerName = GetPlayerName(_source)
+	local allowed    = true
+	local reason     = nil
+
+	-- Don't allow short user names
+	local nameLength = string.len(playerName)
+	if nameLength > 25 or nameLength < 7 then
+		reason = 'your player name is too short or too long. The name limit min: 7 | max: 25.'
+		allowed = false
+	end
+
+	-- Don't allow special characters (doesn't always work)
+	local charMatch = playerName:match("%W")
+	if charMatch == '' or charMatch == ' ' or charMatch == '├' or charMatch == nil then
+
+	else
+		if reason == nil then
+			reason = 'your player name contains special characters that are not allowed on this server.'
+		end
+		allowed = false
+	end
+
+	-- Does the player carry a first and last name?
+	-- 
+	-- Example:
+	-- Allowed:     'Bob Joe'
+	-- Not allowed: 'Bob'
+	-- Not allowed: 'Bob joe'
+	local spacesInName    = 0
+	local spacesWithUpper = 0
+	for word in string.gmatch(playerName, '%S+') do
+
+		if string.match(word, '%u') then
+			spacesWithUpper = spacesWithUpper + 1
+		end
+
+		spacesInName = spacesInName + 1
+	end
+
+	if spacesInName < 2 then
+		if reason == nil then
+			reason = 'your player name does not contain a first and last name.'
+		end
+		allowed = false
+	end
+
+	if spacesWithUpper ~= spacesInName then
+		if reason == nil then
+			reason = 'your first and surname must start with a capital letter.'
+		end
+		allowed = false
+	end
+
+	if allowed then
+		deferrals.done()
+	else
+		deferrals.done('You cannot connect with your current player name. Reason: ' .. reason .. ' If you belive that something is wrong, please contact the SCRP staff')
+	end
+end)