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path: root/lua/autorun/sv_nadmin.lua
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if CLIENT then return end
include("sh_cami.lua")
local nadmin = include("sh_nadmin.lua")

--Override what print() does, just for this file
local oldprint = print
print = function(...)
	local args = {...}
	table.insert(args,1,"[NADMIN]")
	oldprint(unpack(args))
end
for _,v in pairs({
	--Server to client
	"nadmin_update_privilege", -- (exists :: bool, privilege :: CAMI_PRIVILEGE)

	"nadmin_create_group", -- (name :: string, inherits :: string, source :: string)
	"nadmin_update_group", -- (name :: string, privilege :: string, exists :: bool)
	"nadmin_delete_group", -- (name :: string)

	"nadmin_update_player", -- (entity :: player, group :: string)

	"nadmin_init_privileges", -- (privileges :: table)
	"nadmin_init_players", -- (players :: table)
	"nadmin_init_groups", -- (groups :: table)

	--Client to server
	"nadmin_request_set_user_group", --(player :: entity, group :: string)
	"nadmin_request_create_group", --(group :: string, inherits :: string)
	"nadmin_request_update_group", --(group :: string, privilege :: string, set :: bool)
	"nadmin_request_delete_group", --(group :: string)
}) do
	util.AddNetworkString(v)
end
--Load saved groups & privileges
local groups = nadmin.groups
local players = nadmin.players
local privileges = nadmin.privileges
--Delete the HasAccess functions
for _,privilege in pairs(privileges) do
	privilege.HasAccess = nil
end
if file.Exists("nadmin.txt","DATA") then
	local func, err = CompileString(file.Read("nadmin.txt","DATA"), "nadmin.txt")
	local func_sandboxed = setfenv(func,{}) --Empty environment, you can't even print from inside (you could do an infinite loop, I guess)
	local succ, nadmindata = pcall(func_sandboxed)
	if not succ then
		error("Failed to load groups:", nadmindata)
		return --stop loading the file
	end
	local mygroups, myplayers = nadmindata.groups, nadmindata.players
	for groupname, group in pairs(mygroups) do
		local camigroup = {
			Name = group.name,
			Inherits = group.inherits,
		}
		CAMI.RegisterUsergroup(camigroup)
		groups[groupname] = {
			nadmin = true,
			group = camigroup,
			src = "nadmin",
			privileges = group.privileges
		}
	end
end

--[[
Creates a new group that players can be
added to. All groups must inherit from a
group, except for the "user" "admin" and
"superadmin" groups.
]]
--(group :: string, inherits :: string)
local function create_usergroup(name,inherits)
	local group = {
		Name = name,
		Inherits = inherits
	}
	CAMI.RegisterUsergroup(group, "nadmin")
	nadmin.save_config()
end

--[[
Edits the privileges on a usergroup.
Players added to the usergroup will
now have the privilege set.
]]
--name :: string, privilegename :: string, set :: bool
local function edit_usergroup(name,privilegename,set)
	if set then
		groups[name].privileges[privilegename] = set
	else
		groups[name].privileges[privilegename] = nil
	end
	net.Start("nadmin_update_group")
	net.WriteString(name)
	net.WriteString(privilegename)
	net.WriteBool(set)
	net.Broadcast()
	nadmin.save_config()
end

--[[
Deletes a usergroup. Any players assigned
to the deleted group will be reassigned
to the usergroup that the deleted group
inherited from. Any groups that inherited
from the usergroup in the heiarchy will
inherit from the group the usergroup
inherited from.
]]
--(group :: string)
local function delete_usergroup(name)
	assert(groups[name], "Tried to delete a group that doesn't exist:\"" .. name .. "\"")
	local inherited_from_name = groups[name].group.Inherits
	local inherited_from = groups[inherited_from_name]
	local group = groups[name]
	for _,v in pairs(players) do
		if v.group == groups[name] then
			v.group = inherited_from
		end
	end
	for _,v in pairs(groups) do
		if v.group.Inherits == group then
			v.group.Inherits = inherited_from
		end
	end
	CAMI.UnregisterUsergroup(group, "nadmin")
	groups[name] = nil
	nadmin.save_config()
end

local function set_user_to_group(ply,group)
	local id,name = ply:SteamID64(), ply:Name()
	players[id] = {
		group = group,
		last_name = name
	}
	net.Start("nadmin_update_player")
	net.WriteEntity(ply)
	net.WriteString(group)
	net.Broadcast()
	nadmin.save_config()
end

local function send_init_info(ply)
	net.Start("nadmin_init_privileges")
	local light_privileges = {}
	for privilege_name,privilege in pairs(privileges) do
		light_privileges[privilege_name] = {
			Description = privilege.Description,
			MinAccess = privilege.MinAccess,
			Name = privilege.Name
		}
	end
	net.WriteTable(light_privileges)
	net.Send(ply)

	net.Start("nadmin_init_players")
	net.WriteTable(players)
	net.Send(ply)

	net.Start("nadmin_init_groups")
	net.WriteTable(groups)
	net.Send(ply)
end

net.Receive("nadmin_request_set_user_group",function(len,ply)
	if not ply:IsSuperAdmin() then return end
	local player = net.ReadEntity()
	local group = net.ReadString()
	set_user_to_group(player,group)
end)

net.Receive("nadmin_request_create_group",function(len,ply)
	if not ply:IsSuperAdmin() then return end
	local groupname = net.ReadString()
	local inherits = net.ReadString()
	create_usergroup(groupname,inherits)
end)

net.Receive("nadmin_request_update_group",function(len,ply)
	if not ply:IsSuperAdmin() then return end
	local groupname = net.ReadString()
	local privilegename = net.ReadString()
	local set = net.ReadBool()
	edit_usergroup(groupname,privilegename,set)
end)

net.Receive("nadmin_request_delete_group", function(len,ply)
	if not ply:IsSuperAdmin() then return end
	local group = net.ReadString()
	delete_usergroup(group)
end)

hook.Add("PlayerInitialSpawn","nadmin_init_tables",function(ply)
	timer.Simple(5,function()
		if players[ply:SteamID64()] == nil then
			local igroup = "user"
			if ply:IsSuperAdmin() then igroup = "superadmin"
			elseif ply:IsAdmin() then igroup = "admin" end
			players[ply:SteamID64()] = {
				group = igroup,
				last_name = ply:Name()
			}
			set_user_to_group(ply,igroup)
		end
		if ply:IsSuperAdmin() then
			send_init_info(ply)
		end
	end)
end)

concommand.Add("sv_resave", function(ply,cmd,args)
	if not ply:IsSuperAdmin() then return end
	nadmin.save_config()
end)

concommand.Add("sv_resend_init",function(ply,cmd,args)
	if not ply:IsSuperAdmin() then return end
	send_init_info(ply)
end)
--Reset the print function
print = oldprint