Split builtin.lua to multiple files

1 files changed, 294 insertions, 0 deletions

diff --git a/builtin/chatcommands.lua b/builtin/chatcommands.lua
new file mode 100644
index 000000000..d5f448ebb
--- /dev/null
+++ b/builtin/chatcommands.lua
@@ -0,0 +1,294 @@
+-- Minetest: builtin/chatcommands.lua
+
+--
+-- Chat commands
+--
+
+minetest.chatcommands = {}
+function minetest.register_chatcommand(cmd, def)
+	def = def or {}
+	def.params = def.params or ""
+	def.description = def.description or ""
+	def.privs = def.privs or {}
+	minetest.chatcommands[cmd] = def
+end
+
+-- Register the help command
+minetest.register_chatcommand("help", {
+	privs = {},
+	params = "(nothing)/all/privs/<cmd>",
+	description = "Get help for commands or list privileges",
+	func = function(name, param)
+		local format_help_line = function(cmd, def)
+			local msg = "/"..cmd
+			if def.params and def.params ~= "" then msg = msg .. " " .. def.params end
+			if def.description and def.description ~= "" then msg = msg .. ": " .. def.description end
+			return msg
+		end
+		if param == "" then
+			local msg = ""
+			cmds = {}
+			for cmd, def in pairs(minetest.chatcommands) do
+				if minetest.check_player_privs(name, def.privs) then
+					table.insert(cmds, cmd)
+				end
+			end
+			minetest.chat_send_player(name, "Available commands: "..table.concat(cmds, " "))
+			minetest.chat_send_player(name, "Use '/help <cmd>' to get more information, or '/help all' to list everything.")
+		elseif param == "all" then
+			minetest.chat_send_player(name, "Available commands:")
+			for cmd, def in pairs(minetest.chatcommands) do
+				if minetest.check_player_privs(name, def.privs) then
+					minetest.chat_send_player(name, format_help_line(cmd, def))
+				end
+			end
+		elseif param == "privs" then
+			minetest.chat_send_player(name, "Available privileges:")
+			for priv, def in pairs(minetest.registered_privileges) do
+				minetest.chat_send_player(name, priv..": "..def.description)
+			end
+		else
+			local cmd = param
+			def = minetest.chatcommands[cmd]
+			if not def then
+				minetest.chat_send_player(name, "Command not available: "..cmd)
+			else
+				minetest.chat_send_player(name, format_help_line(cmd, def))
+			end
+		end
+	end,
+})
+
+-- Register C++ commands without functions
+minetest.register_chatcommand("me", {params = nil, description = "chat action (eg. /me orders a pizza)"})
+minetest.register_chatcommand("status", {description = "print server status line"})
+minetest.register_chatcommand("shutdown", {params = "", description = "shutdown server", privs = {server=true}})
+minetest.register_chatcommand("setting", {params = "<name> = <value>", description = "set line in configuration file", privs = {server=true}})
+minetest.register_chatcommand("clearobjects", {params = "", description = "clear all objects in world", privs = {server=true}})
+minetest.register_chatcommand("time", {params = "<0...24000>", description = "set time of day", privs = {settime=true}})
+minetest.register_chatcommand("ban", {params = "<name>", description = "ban IP of player", privs = {ban=true}})
+minetest.register_chatcommand("unban", {params = "<name/ip>", description = "remove IP ban", privs = {ban=true}})
+
+-- Register some other commands
+minetest.register_chatcommand("privs", {
+	params = "<name>",
+	description = "print out privileges of player",
+	func = function(name, param)
+		if param == "" then
+			param = name
+		else
+			if not minetest.check_player_privs(name, {privs=true}) then
+				minetest.chat_send_player(name, "Privileges of "..param.." are hidden from you.")
+			end
+		end
+		minetest.chat_send_player(name, "Privileges of "..param..": "..minetest.privs_to_string(minetest.get_player_privs(param), ' '))
+	end,
+})
+minetest.register_chatcommand("grant", {
+	params = "<name> <privilege>|all",
+	description = "Give privilege to player",
+	privs = {privs=true},
+	func = function(name, param)
+		local grantname, grantprivstr = string.match(param, "([^ ]+) (.+)")
+		if not grantname or not grantprivstr then
+			minetest.chat_send_player(name, "Invalid parameters (see /help grant)")
+			return
+		end
+		local grantprivs = minetest.string_to_privs(grantprivstr)
+		if grantprivstr == "all" then
+			grantprivs = minetest.registered_privileges
+		end
+		local privs = minetest.get_player_privs(grantname)
+		for priv, _ in pairs(grantprivs) do
+			privs[priv] = true
+		end
+		minetest.set_player_privs(grantname, privs)
+		minetest.chat_send_player(name, "Privileges of "..grantname..": "..minetest.privs_to_string(minetest.get_player_privs(grantname), ' '))
+		if grantname ~= name then
+			minetest.chat_send_player(grantname, name.." granted you privileges: "..minetest.privs_to_string(grantprivs, ' '))
+		end
+	end,
+})
+minetest.register_chatcommand("revoke", {
+	params = "<name> <privilege>|all",
+	description = "Remove privilege from player",
+	privs = {privs=true},
+	func = function(name, param)
+		local revokename, revokeprivstr = string.match(param, "([^ ]+) (.+)")
+		if not revokename or not revokeprivstr then
+			minetest.chat_send_player(name, "Invalid parameters (see /help revoke)")
+			return
+		end
+		local revokeprivs = minetest.string_to_privs(revokeprivstr)
+		local privs = minetest.get_player_privs(revokename)
+		if revokeprivstr == "all" then
+			privs = {}
+		else
+			for priv, _ in pairs(revokeprivs) do
+				privs[priv] = nil
+			end
+		end
+		minetest.set_player_privs(revokename, privs)
+		minetest.chat_send_player(name, "Privileges of "..revokename..": "..minetest.privs_to_string(minetest.get_player_privs(revokename), ' '))
+		if revokename ~= name then
+			minetest.chat_send_player(revokename, name.." revoked privileges from you: "..minetest.privs_to_string(revokeprivs, ' '))
+		end
+	end,
+})
+minetest.register_chatcommand("setpassword", {
+	params = "<name> <password>",
+	description = "set given password",
+	privs = {password=true},
+	func = function(name, param)
+		if param == "" then
+			minetest.chat_send_player(name, "Password field required")
+			return
+		end
+		minetest.set_player_password(name, param)
+		minetest.chat_send_player(name, "Password set")
+	end,
+})
+minetest.register_chatcommand("clearpassword", {
+	params = "<name>",
+	description = "set empty password",
+	privs = {password=true},
+	func = function(name, param)
+		minetest.set_player_password(name, '')
+		minetest.chat_send_player(name, "Password cleared")
+	end,
+})
+
+minetest.register_chatcommand("auth_reload", {
+	params = "",
+	description = "reload authentication data",
+	privs = {server=true},
+	func = function(name, param)
+		local done = minetest.auth_reload()
+		if done then
+			minetest.chat_send_player(name, "Done.")
+		else
+			minetest.chat_send_player(name, "Failed.")
+		end
+	end,
+})
+
+minetest.register_chatcommand("teleport", {
+	params = "<X>,<Y>,<Z> | <to_name> | <name> <X>,<Y>,<Z> | <name> <to_name>",
+	description = "teleport to given position",
+	privs = {teleport=true},
+	func = function(name, param)
+		-- Returns (pos, true) if found, otherwise (pos, false)
+		local function find_free_position_near(pos)
+			local tries = {
+				{x=1,y=0,z=0},
+				{x=-1,y=0,z=0},
+				{x=0,y=0,z=1},
+				{x=0,y=0,z=-1},
+			}
+			for _, d in ipairs(tries) do
+				local p = {x = pos.x+d.x, y = pos.y+d.y, z = pos.z+d.z}
+				local n = minetest.env:get_node(p)
+				if not minetest.registered_nodes[n.name].walkable then
+					return p, true
+				end
+			end
+			return pos, false
+		end
+
+		local teleportee = nil
+		local p = {}
+		p.x, p.y, p.z = string.match(param, "^([%d.-]+)[, ] *([%d.-]+)[, ] *([%d.-]+)$")
+		teleportee = minetest.env:get_player_by_name(name)
+		if teleportee and p.x and p.y and p.z then
+			minetest.chat_send_player(name, "Teleporting to ("..p.x..", "..p.y..", "..p.z..")")
+			teleportee:setpos(p)
+			return
+		end
+		
+		local teleportee = nil
+		local p = nil
+		local target_name = nil
+		target_name = string.match(param, "^([^ ]+)$")
+		teleportee = minetest.env:get_player_by_name(name)
+		if target_name then
+			local target = minetest.env:get_player_by_name(target_name)
+			if target then
+				p = target:getpos()
+			end
+		end
+		if teleportee and p then
+			p = find_free_position_near(p)
+			minetest.chat_send_player(name, "Teleporting to "..target_name.." at ("..p.x..", "..p.y..", "..p.z..")")
+			teleportee:setpos(p)
+			return
+		end
+		
+		if minetest.check_player_privs(name, {bring=true}) then
+			local teleportee = nil
+			local p = {}
+			local teleportee_name = nil
+			teleportee_name, p.x, p.y, p.z = string.match(param, "^([^ ]+) +([%d.-]+)[, ] *([%d.-]+)[, ] *([%d.-]+)$")
+			if teleportee_name then
+				teleportee = minetest.env:get_player_by_name(teleportee_name)
+			end
+			if teleportee and p.x and p.y and p.z then
+				minetest.chat_send_player(name, "Teleporting "..teleportee_name.." to ("..p.x..", "..p.y..", "..p.z..")")
+				teleportee:setpos(p)
+				return
+			end
+			
+			local teleportee = nil
+			local p = nil
+			local teleportee_name = nil
+			local target_name = nil
+			teleportee_name, target_name = string.match(param, "^([^ ]+) +([^ ]+)$")
+			if teleportee_name then
+				teleportee = minetest.env:get_player_by_name(teleportee_name)
+			end
+			if target_name then
+				local target = minetest.env:get_player_by_name(target_name)
+				if target then
+					p = target:getpos()
+				end
+			end
+			if teleportee and p then
+				p = find_free_position_near(p)
+				minetest.chat_send_player(name, "Teleporting "..teleportee_name.." to "..target_name.." at ("..p.x..", "..p.y..", "..p.z..")")
+				teleportee:setpos(p)
+				return
+			end
+		end
+
+		minetest.chat_send_player(name, "Invalid parameters (\""..param.."\") or player not found (see /help teleport)")
+		return
+	end,
+})
+
+--
+-- Builtin chat handler
+--
+
+minetest.register_on_chat_message(function(name, message)
+	local cmd, param = string.match(message, "/([^ ]+) *(.*)")
+	if not param then
+		param = ""
+	end
+	local cmd_def = minetest.chatcommands[cmd]
+	if cmd_def then
+		if not cmd_def.func then
+			-- This is a C++ command
+			return false
+		else
+			local has_privs, missing_privs = minetest.check_player_privs(name, cmd_def.privs)
+			if has_privs then
+				cmd_def.func(name, param)
+			else
+				minetest.chat_send_player(name, "You don't have permission to run this command (missing privileges: "..table.concat(missing_privs, ", ")..")")
+			end
+			return true -- handled chat message
+		end
+	end
+	return false
+end)
+
+