minetest/builtin/chatcommands.lua
2013-11-27 18:13:06 -05:00

705 lines
22 KiB
Lua

-- Minetest: builtin/chatcommands.lua
--
-- Chat command handler
--
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
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
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
return false
end)
--
-- Chat commands
--
minetest.register_chatcommand("me", {
params = "<action>",
description = "chat action (eg. /me orders a pizza)",
privs = {shout=true},
func = function(name, param)
minetest.chat_send_all("* " .. name .. " " .. param)
end,
})
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,
})
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.")
return
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 = {},
func = function(name, param)
if not minetest.check_player_privs(name, {privs=true}) and
not minetest.check_player_privs(name, {basic_privs=true}) then
minetest.chat_send_player(name, "Your privileges are insufficient.")
return
end
local grantname, grantprivstr = string.match(param, "([^ ]+) (.+)")
if not grantname or not grantprivstr then
minetest.chat_send_player(name, "Invalid parameters (see /help grant)")
return
elseif not minetest.auth_table[grantname] then
minetest.chat_send_player(name, "Player "..grantname.." does not exist.")
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)
local privs_known = true
for priv, _ in pairs(grantprivs) do
if priv ~= "interact" and priv ~= "shout" and priv ~= "interact_extra" and not minetest.check_player_privs(name, {privs=true}) then
minetest.chat_send_player(name, "Your privileges are insufficient.")
return
end
if not minetest.registered_privileges[priv] then
minetest.chat_send_player(name, "Unknown privilege: "..priv)
privs_known = false
end
privs[priv] = true
end
if not privs_known then
return
end
minetest.set_player_privs(grantname, privs)
minetest.log(name..' granted ('..minetest.privs_to_string(grantprivs, ', ')..') privileges to '..grantname)
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 = {},
func = function(name, param)
if not minetest.check_player_privs(name, {privs=true}) and
not minetest.check_player_privs(name, {basic_privs=true}) then
minetest.chat_send_player(name, "Your privileges are insufficient.")
return
end
local revokename, revokeprivstr = string.match(param, "([^ ]+) (.+)")
if not revokename or not revokeprivstr then
minetest.chat_send_player(name, "Invalid parameters (see /help revoke)")
return
elseif not minetest.auth_table[revokename] then
minetest.chat_send_player(name, "Player "..revokename.." does not exist.")
return
end
local revokeprivs = minetest.string_to_privs(revokeprivstr)
local privs = minetest.get_player_privs(revokename)
for priv, _ in pairs(revokeprivs) do
if priv ~= "interact" and priv ~= "shout" and priv ~= "interact_extra" and not minetest.check_player_privs(name, {privs=true}) then
minetest.chat_send_player(name, "Your privileges are insufficient.")
return
end
end
if revokeprivstr == "all" then
privs = {}
else
for priv, _ in pairs(revokeprivs) do
privs[priv] = nil
end
end
minetest.set_player_privs(revokename, privs)
minetest.log(name..' revoked ('..minetest.privs_to_string(revokeprivs, ', ')..') privileges from '..revokename)
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)
local toname, raw_password = string.match(param, "^([^ ]+) +(.+)$")
if not toname then
toname = string.match(param, "^([^ ]+) *$")
raw_password = nil
end
if not toname then
minetest.chat_send_player(name, "Name field required")
return
end
local actstr = "?"
if not raw_password then
minetest.set_player_password(toname, "")
actstr = "cleared"
else
minetest.set_player_password(toname, minetest.get_password_hash(toname, raw_password))
actstr = "set"
end
minetest.chat_send_player(name, "Password of player \""..toname.."\" "..actstr)
if toname ~= name then
minetest.chat_send_player(toname, "Your password was "..actstr.." by "..name)
end
end,
})
minetest.register_chatcommand("clearpassword", {
params = "<name>",
description = "set empty password",
privs = {password=true},
func = function(name, param)
toname = param
if toname == "" then
minetest.chat_send_player(name, "Name field required")
return
end
minetest.set_player_password(toname, '')
minetest.chat_send_player(name, "Password of player \""..toname.."\" 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.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.-]+)$")
p.x = tonumber(p.x)
p.y = tonumber(p.y)
p.z = tonumber(p.z)
teleportee = minetest.get_player_by_name(name)
if teleportee and p.x and p.y and p.z then
minetest.chat_send_player(name, "Teleporting to ("..p.x..", "..p.y..", "..p.z..")")
teleportee:setpos(p)
return
end
local teleportee = nil
local p = nil
local target_name = nil
target_name = string.match(param, "^([^ ]+)$")
teleportee = minetest.get_player_by_name(name)
if target_name then
local target = minetest.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.-]+)$")
p.x = tonumber(p.x)
p.y = tonumber(p.y)
p.z = tonumber(p.z)
if teleportee_name then
teleportee = minetest.get_player_by_name(teleportee_name)
end
if teleportee and p.x and p.y and p.z then
minetest.chat_send_player(name, "Teleporting "..teleportee_name.." to ("..p.x..", "..p.y..", "..p.z..")")
teleportee:setpos(p)
return
end
local teleportee = nil
local p = nil
local teleportee_name = nil
local target_name = nil
teleportee_name, target_name = string.match(param, "^([^ ]+) +([^ ]+)$")
if teleportee_name then
teleportee = minetest.get_player_by_name(teleportee_name)
end
if target_name then
local target = minetest.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,
})
minetest.register_chatcommand("set", {
params = "[-n] <name> <value> | <name>",
description = "set or read server configuration setting",
privs = {server=true},
func = function(name, param)
local arg, setname, setvalue = string.match(param, "(-[n]) ([^ ]+) (.+)")
if arg and arg == "-n" and setname and setvalue then
minetest.setting_set(setname, setvalue)
minetest.chat_send_player(name, setname.." = "..setvalue)
return
end
local setname, setvalue = string.match(param, "([^ ]+) (.+)")
if setname and setvalue then
if not minetest.setting_get(setname) then
minetest.chat_send_player(name, "Failed. Use '/set -n <name> <value>' to create a new setting.")
return
end
minetest.setting_set(setname, setvalue)
minetest.chat_send_player(name, setname.." = "..setvalue)
return
end
local setname = string.match(param, "([^ ]+)")
if setname then
local setvalue = minetest.setting_get(setname)
if not setvalue then
setvalue = "<not set>"
end
minetest.chat_send_player(name, setname.." = "..setvalue)
return
end
minetest.chat_send_player(name, "Invalid parameters (see /help set)")
end,
})
minetest.register_chatcommand("mods", {
params = "",
description = "lists mods installed on the server",
privs = {},
func = function(name, param)
local response = ""
local modnames = minetest.get_modnames()
for i, mod in ipairs(modnames) do
response = response .. mod
-- Add space if not at the end
if i ~= #modnames then
response = response .. " "
end
end
minetest.chat_send_player(name, response)
end,
})
local function handle_give_command(cmd, giver, receiver, stackstring)
minetest.log("action", giver.." invoked "..cmd..', stackstring="'
..stackstring..'"')
minetest.log(cmd..' invoked, stackstring="'..stackstring..'"')
local itemstack = ItemStack(stackstring)
if itemstack:is_empty() then
minetest.chat_send_player(giver, 'error: cannot give an empty item')
return
elseif not itemstack:is_known() then
minetest.chat_send_player(giver, 'error: cannot give an unknown item')
return
end
local receiverref = minetest.get_player_by_name(receiver)
if receiverref == nil then
minetest.chat_send_player(giver, receiver..' is not a known player')
return
end
local leftover = receiverref:get_inventory():add_item("main", itemstack)
if leftover:is_empty() then
partiality = ""
elseif leftover:get_count() == itemstack:get_count() then
partiality = "could not be "
else
partiality = "partially "
end
-- The actual item stack string may be different from what the "giver"
-- entered (e.g. big numbers are always interpreted as 2^16-1).
stackstring = itemstack:to_string()
if giver == receiver then
minetest.chat_send_player(giver, '"'..stackstring
..'" '..partiality..'added to inventory.');
else
minetest.chat_send_player(giver, '"'..stackstring
..'" '..partiality..'added to '..receiver..'\'s inventory.');
minetest.chat_send_player(receiver, '"'..stackstring
..'" '..partiality..'added to inventory.');
end
end
minetest.register_chatcommand("give", {
params = "<name> <itemstring>",
description = "give item to player",
privs = {give=true},
func = function(name, param)
local toname, itemstring = string.match(param, "^([^ ]+) +(.+)$")
if not toname or not itemstring then
minetest.chat_send_player(name, "name and itemstring required")
return
end
handle_give_command("/give", name, toname, itemstring)
end,
})
minetest.register_chatcommand("giveme", {
params = "<itemstring>",
description = "give item to yourself",
privs = {give=true},
func = function(name, param)
local itemstring = string.match(param, "(.+)$")
if not itemstring then
minetest.chat_send_player(name, "itemstring required")
return
end
handle_give_command("/giveme", name, name, itemstring)
end,
})
minetest.register_chatcommand("spawnentity", {
params = "<entityname>",
description = "spawn entity at your position",
privs = {give=true, interact=true},
func = function(name, param)
local entityname = string.match(param, "(.+)$")
if not entityname then
minetest.chat_send_player(name, "entityname required")
return
end
minetest.log("action", '/spawnentity invoked, entityname="'..entityname..'"')
local player = minetest.get_player_by_name(name)
if player == nil then
minetest.log("error", "Unable to spawn entity, player is nil")
return true -- Handled chat message
end
local p = player:getpos()
p.y = p.y + 1
minetest.add_entity(p, entityname)
minetest.chat_send_player(name, '"'..entityname
..'" spawned.');
end,
})
minetest.register_chatcommand("pulverize", {
params = "",
description = "delete item in hand",
privs = {},
func = function(name, param)
local player = minetest.get_player_by_name(name)
if player == nil then
minetest.log("error", "Unable to pulverize, player is nil")
return true -- Handled chat message
end
if player:get_wielded_item():is_empty() then
minetest.chat_send_player(name, 'Unable to pulverize, no item in hand.')
else
player:set_wielded_item(nil)
minetest.chat_send_player(name, 'An item was pulverized.')
end
end,
})
-- Key = player name
minetest.rollback_punch_callbacks = {}
minetest.register_on_punchnode(function(pos, node, puncher)
local name = puncher:get_player_name()
if minetest.rollback_punch_callbacks[name] then
minetest.rollback_punch_callbacks[name](pos, node, puncher)
minetest.rollback_punch_callbacks[name] = nil
end
end)
minetest.register_chatcommand("rollback_check", {
params = "[<range>] [<seconds>] [limit]",
description = "check who has last touched a node or near it, "..
"max. <seconds> ago (default range=0, seconds=86400=24h, limit=5)",
privs = {rollback=true},
func = function(name, param)
local range, seconds, limit =
param:match("(%d+) *(%d*) *(%d*)")
range = tonumber(range) or 0
seconds = tonumber(seconds) or 86400
limit = tonumber(limit) or 5
if limit > 100 then
minetest.chat_send_player(name, "That limit is too high!")
return
end
minetest.chat_send_player(name, "Punch a node (range="..
range..", seconds="..seconds.."s, limit="..limit..")")
minetest.rollback_punch_callbacks[name] = function(pos, node, puncher)
local name = puncher:get_player_name()
minetest.chat_send_player(name, "Checking "..minetest.pos_to_string(pos).."...")
local actions = minetest.rollback_get_node_actions(pos, range, seconds, limit)
local num_actions = #actions
if num_actions == 0 then
minetest.chat_send_player(name, "Nobody has touched the "..
"specified location in "..seconds.." seconds")
return
end
local time = os.time()
for i = num_actions, 1, -1 do
local action = actions[i]
minetest.chat_send_player(name,
("%s %s %s -> %s %d seconds ago.")
:format(
minetest.pos_to_string(action.pos),
action.actor,
action.oldnode.name,
action.newnode.name,
time - action.time))
end
end
end,
})
minetest.register_chatcommand("rollback", {
params = "<player name> [<seconds>] | :<actor> [<seconds>]",
description = "revert actions of a player; default for <seconds> is 60",
privs = {rollback=true},
func = function(name, param)
local target_name, seconds = string.match(param, ":([^ ]+) *(%d*)")
if not target_name then
local player_name = nil
player_name, seconds = string.match(param, "([^ ]+) *(%d*)")
if not player_name then
minetest.chat_send_player(name, "Invalid parameters. See /help rollback and /help rollback_check")
return
end
target_name = "player:"..player_name
end
seconds = tonumber(seconds) or 60
minetest.chat_send_player(name, "Reverting actions of "..
target_name.." since "..seconds.." seconds.")
local success, log = minetest.rollback_revert_actions_by(
target_name, seconds)
if #log > 100 then
minetest.chat_send_player(name, "(log is too long to show)")
else
for _, line in pairs(log) do
minetest.chat_send_player(name, line)
end
end
if success then
minetest.chat_send_player(name, "Reverting actions succeeded.")
else
minetest.chat_send_player(name, "Reverting actions FAILED.")
end
end,
})
minetest.register_chatcommand("status", {
params = "",
description = "print server status line",
privs = {},
func = function(name, param)
minetest.chat_send_player(name, minetest.get_server_status())
end,
})
minetest.register_chatcommand("time", {
params = "<0...24000>",
description = "set time of day",
privs = {settime=true},
func = function(name, param)
if param == "" then
minetest.chat_send_player(name, "Missing parameter")
return
end
local newtime = tonumber(param)
if newtime == nil then
minetest.chat_send_player(name, "Invalid time")
else
minetest.set_timeofday((newtime % 24000) / 24000)
minetest.chat_send_player(name, "Time of day changed.")
minetest.log("action", name .. " sets time " .. newtime)
end
end,
})
minetest.register_chatcommand("shutdown", {
params = "",
description = "shutdown server",
privs = {server=true},
func = function(name, param)
minetest.log("action", name .. " shuts down server")
minetest.request_shutdown()
minetest.chat_send_all("*** Server shutting down (operator request).")
end,
})
minetest.register_chatcommand("ban", {
params = "<name>",
description = "ban IP of player",
privs = {ban=true},
func = function(name, param)
if param == "" then
minetest.chat_send_player(name, "Ban list: " .. minetest.get_ban_list())
return
end
if not minetest.get_player_by_name(param) then
minetest.chat_send_player(name, "No such player")
return
end
if not minetest.ban_player(param) then
minetest.chat_send_player(name, "Failed to ban player")
else
local desc = minetest.get_ban_description(param)
minetest.chat_send_player(name, "Banned " .. desc .. ".")
minetest.log("action", name .. " bans " .. desc .. ".")
end
end,
})
minetest.register_chatcommand("unban", {
params = "<name/ip>",
description = "remove IP ban",
privs = {ban=true},
func = function(name, param)
if not minetest.unban_player_or_ip(param) then
minetest.chat_send_player(name, "Failed to unban player/IP")
else
minetest.chat_send_player(name, "Unbanned " .. param)
minetest.log("action", name .. " unbans " .. param)
end
end,
})
minetest.register_chatcommand("clearobjects", {
params = "",
description = "clear all objects in world",
privs = {server=true},
func = function(name, param)
minetest.log("action", name .. " clears all objects")
minetest.chat_send_all("Clearing all objects. This may take long. You may experience a timeout. (by " .. name .. ")")
minetest.clear_objects()
minetest.log("action", "object clearing done")
minetest.chat_send_all("*** Cleared all objects.")
end,
})
minetest.register_chatcommand("msg", {
params = "<name> <message>",
description = "Send a private message",
privs = {shout=true},
func = function(name, param)
local found, _, sendto, message = param:find("^([^%s]+)%s(.+)$")
if found then
if minetest.get_player_by_name(sendto) then
minetest.log("action", "PM from "..name.." to "..sendto..": "..message)
minetest.chat_send_player(sendto, "PM from "..name..": "..message, false)
minetest.chat_send_player(name, "Message sent")
else
minetest.chat_send_player(name, "The player "..sendto.." is not online")
end
else
minetest.chat_send_player(name, "Invalid usage, see /help msg")
end
end,
})