-- Minetest: builtin/game/chat.lua local S = core.get_translator("__builtin") -- Helper function that implements search and replace without pattern matching -- Returns the string and a boolean indicating whether or not the string was modified local function safe_gsub(s, replace, with) local i1, i2 = s:find(replace, 1, true) if not i1 then return s, false end return s:sub(1, i1 - 1) .. with .. s:sub(i2 + 1), true end -- -- Chat message formatter -- -- Implemented in Lua to allow redefinition function core.format_chat_message(name, message) local error_str = "Invalid chat message format - missing %s" local str = core.settings:get("chat_message_format") local replaced -- Name str, replaced = safe_gsub(str, "@name", name) if not replaced then error(error_str:format("@name"), 2) end -- Timestamp str = safe_gsub(str, "@timestamp", os.date("%H:%M:%S", os.time())) -- Insert the message into the string only after finishing all other processing str, replaced = safe_gsub(str, "@message", message) if not replaced then error(error_str:format("@message"), 2) end return str end -- -- Chat command handler -- core.chatcommands = core.registered_chatcommands -- BACKWARDS COMPATIBILITY local msg_time_threshold = tonumber(core.settings:get("chatcommand_msg_time_threshold")) or 0.1 core.register_on_chat_message(function(name, message) if message:sub(1,1) ~= "/" then return end local cmd, param = string.match(message, "^/([^ ]+) *(.*)") if not cmd then core.chat_send_player(name, "-!- "..S("Empty command.")) return true end param = param or "" -- Run core.registered_on_chatcommands callbacks. if core.run_callbacks(core.registered_on_chatcommands, 5, name, cmd, param) then return true end local cmd_def = core.registered_chatcommands[cmd] if not cmd_def then core.chat_send_player(name, "-!- "..S("Invalid command: @1", cmd)) return true end local has_privs, missing_privs = core.check_player_privs(name, cmd_def.privs) if has_privs then core.set_last_run_mod(cmd_def.mod_origin) local t_before = core.get_us_time() local success, result = cmd_def.func(name, param) local delay = (core.get_us_time() - t_before) / 1000000 if success == false and result == nil then core.chat_send_player(name, "-!- "..S("Invalid command usage.")) local help_def = core.registered_chatcommands["help"] if help_def then local _, helpmsg = help_def.func(name, cmd) if helpmsg then core.chat_send_player(name, helpmsg) end end else if delay > msg_time_threshold then -- Show how much time it took to execute the command if result then result = result .. core.colorize("#f3d2ff", S(" (@1 s)", string.format("%.5f", delay))) else result = core.colorize("#f3d2ff", S( "Command execution took @1 s", string.format("%.5f", delay))) end end if result then core.chat_send_player(name, result) end end else core.chat_send_player(name, S("You don't have permission to run this command " .. "(missing privileges: @1).", table.concat(missing_privs, ", "))) end return true -- Handled chat message end) if core.settings:get_bool("profiler.load") then -- Run after register_chatcommand and its register_on_chat_message -- Before any chatcommands that should be profiled profiler.init_chatcommand() end -- Parses a "range" string in the format of "here (number)" or -- "(x1, y1, z1) (x2, y2, z2)", returning two position vectors local function parse_range_str(player_name, str) local p1, p2 local args = str:split(" ") if args[1] == "here" then p1, p2 = core.get_player_radius_area(player_name, tonumber(args[2])) if p1 == nil then return false, S("Unable to get position of player @1.", player_name) end else p1, p2 = core.string_to_area(str) if p1 == nil then return false, S("Incorrect area format. " .. "Expected: (x1,y1,z1) (x2,y2,z2)") end end return p1, p2 end -- -- Chat commands -- core.register_chatcommand("me", { params = S("<action>"), description = S("Show chat action (e.g., '/me orders a pizza' " .. "displays '<player name> orders a pizza')"), privs = {shout=true}, func = function(name, param) core.chat_send_all("* " .. name .. " " .. param) return true end, }) core.register_chatcommand("admin", { description = S("Show the name of the server owner"), func = function(name) local admin = core.settings:get("name") if admin then return true, S("The administrator of this server is @1.", admin) else return false, S("There's no administrator named " .. "in the config file.") end end, }) local function privileges_of(name, privs) if not privs then privs = core.get_player_privs(name) end local privstr = core.privs_to_string(privs, ", ") if privstr == "" then return S("@1 does not have any privileges.", name) else return S("Privileges of @1: @2", name, privstr) end end core.register_chatcommand("privs", { params = S("[<name>]"), description = S("Show privileges of yourself or another player"), func = function(caller, param) param = param:trim() local name = (param ~= "" and param or caller) if not core.player_exists(name) then return false, S("Player @1 does not exist.", name) end return true, privileges_of(name) end, }) core.register_chatcommand("haspriv", { params = S("<privilege>"), description = S("Return list of all online players with privilege"), privs = {basic_privs = true}, func = function(caller, param) param = param:trim() if param == "" then return false, S("Invalid parameters (see /help haspriv).") end if not core.registered_privileges[param] then return false, S("Unknown privilege!") end local privs = core.string_to_privs(param) local players_with_priv = {} for _, player in pairs(core.get_connected_players()) do local player_name = player:get_player_name() if core.check_player_privs(player_name, privs) then table.insert(players_with_priv, player_name) end end if #players_with_priv == 0 then return true, S("No online player has the \"@1\" privilege.", param) else return true, S("Players online with the \"@1\" privilege: @2", param, table.concat(players_with_priv, ", ")) end end }) local function handle_grant_command(caller, grantname, grantprivstr) local caller_privs = core.get_player_privs(caller) if not (caller_privs.privs or caller_privs.basic_privs) then return false, S("Your privileges are insufficient.") end if not core.get_auth_handler().get_auth(grantname) then return false, S("Player @1 does not exist.", grantname) end local grantprivs = core.string_to_privs(grantprivstr) if grantprivstr == "all" then grantprivs = core.registered_privileges end local privs = core.get_player_privs(grantname) local privs_unknown = "" local basic_privs = core.string_to_privs(core.settings:get("basic_privs") or "interact,shout") for priv, _ in pairs(grantprivs) do if not basic_privs[priv] and not caller_privs.privs then return false, S("Your privileges are insufficient. ".. "'@1' only allows you to grant: @2", "basic_privs", core.privs_to_string(basic_privs, ', ')) end if not core.registered_privileges[priv] then privs_unknown = privs_unknown .. S("Unknown privilege: @1", priv) .. "\n" end privs[priv] = true end if privs_unknown ~= "" then return false, privs_unknown end core.set_player_privs(grantname, privs) for priv, _ in pairs(grantprivs) do -- call the on_grant callbacks core.run_priv_callbacks(grantname, priv, caller, "grant") end core.log("action", caller..' granted ('..core.privs_to_string(grantprivs, ', ')..') privileges to '..grantname) if grantname ~= caller then core.chat_send_player(grantname, S("@1 granted you privileges: @2", caller, core.privs_to_string(grantprivs, ', '))) end return true, privileges_of(grantname) end core.register_chatcommand("grant", { params = S("<name> (<privilege> [, <privilege2> [<...>]] | all)"), description = S("Give privileges to player"), func = function(name, param) local grantname, grantprivstr = string.match(param, "([^ ]+) (.+)") if not grantname or not grantprivstr then return false, S("Invalid parameters (see /help grant).") end return handle_grant_command(name, grantname, grantprivstr) end, }) core.register_chatcommand("grantme", { params = S("<privilege> [, <privilege2> [<...>]] | all"), description = S("Grant privileges to yourself"), func = function(name, param) if param == "" then return false, S("Invalid parameters (see /help grantme).") end return handle_grant_command(name, name, param) end, }) local function handle_revoke_command(caller, revokename, revokeprivstr) local caller_privs = core.get_player_privs(caller) if not (caller_privs.privs or caller_privs.basic_privs) then return false, S("Your privileges are insufficient.") end if not core.get_auth_handler().get_auth(revokename) then return false, S("Player @1 does not exist.", revokename) end local privs = core.get_player_privs(revokename) local revokeprivs = core.string_to_privs(revokeprivstr) local is_singleplayer = core.is_singleplayer() local is_admin = not is_singleplayer and revokename == core.settings:get("name") and revokename ~= "" if revokeprivstr == "all" then revokeprivs = privs privs = {} else for priv, _ in pairs(revokeprivs) do privs[priv] = nil end end local privs_unknown = "" local basic_privs = core.string_to_privs(core.settings:get("basic_privs") or "interact,shout") local irrevokable = {} local has_irrevokable_priv = false for priv, _ in pairs(revokeprivs) do if not basic_privs[priv] and not caller_privs.privs then return false, S("Your privileges are insufficient. ".. "'@1' only allows you to revoke: @2", "basic_privs", core.privs_to_string(basic_privs, ', ')) end local def = core.registered_privileges[priv] if not def then privs_unknown = privs_unknown .. S("Unknown privilege: @1", priv) .. "\n" elseif is_singleplayer and def.give_to_singleplayer then irrevokable[priv] = true elseif is_admin and def.give_to_admin then irrevokable[priv] = true end end for priv, _ in pairs(irrevokable) do revokeprivs[priv] = nil has_irrevokable_priv = true end if privs_unknown ~= "" then return false, privs_unknown end if has_irrevokable_priv then if is_singleplayer then core.chat_send_player(caller, S("Note: Cannot revoke in singleplayer: @1", core.privs_to_string(irrevokable, ', '))) elseif is_admin then core.chat_send_player(caller, S("Note: Cannot revoke from admin: @1", core.privs_to_string(irrevokable, ', '))) end end local revokecount = 0 core.set_player_privs(revokename, privs) for priv, _ in pairs(revokeprivs) do -- call the on_revoke callbacks core.run_priv_callbacks(revokename, priv, caller, "revoke") revokecount = revokecount + 1 end local new_privs = core.get_player_privs(revokename) if revokecount == 0 then return false, S("No privileges were revoked.") end core.log("action", caller..' revoked (' ..core.privs_to_string(revokeprivs, ', ') ..') privileges from '..revokename) if revokename ~= caller then core.chat_send_player(revokename, S("@1 revoked privileges from you: @2", caller, core.privs_to_string(revokeprivs, ', '))) end return true, privileges_of(revokename, new_privs) end core.register_chatcommand("revoke", { params = S("<name> (<privilege> [, <privilege2> [<...>]] | all)"), description = S("Remove privileges from player"), privs = {}, func = function(name, param) local revokename, revokeprivstr = string.match(param, "([^ ]+) (.+)") if not revokename or not revokeprivstr then return false, S("Invalid parameters (see /help revoke).") end return handle_revoke_command(name, revokename, revokeprivstr) end, }) core.register_chatcommand("revokeme", { params = S("<privilege> [, <privilege2> [<...>]] | all"), description = S("Revoke privileges from yourself"), privs = {}, func = function(name, param) if param == "" then return false, S("Invalid parameters (see /help revokeme).") end return handle_revoke_command(name, name, param) end, }) core.register_chatcommand("setpassword", { params = S("<name> <password>"), description = S("Set player's password"), privs = {password=true}, func = function(name, param) local toname, raw_password = string.match(param, "^([^ ]+) +(.+)$") if not toname then toname = param:match("^([^ ]+) *$") raw_password = nil end if not toname then return false, S("Name field required.") end local msg_chat, msg_log, msg_ret if not raw_password then core.set_player_password(toname, "") msg_chat = S("Your password was cleared by @1.", name) msg_log = name .. " clears password of " .. toname .. "." msg_ret = S("Password of player \"@1\" cleared.", toname) else core.set_player_password(toname, core.get_password_hash(toname, raw_password)) msg_chat = S("Your password was set by @1.", name) msg_log = name .. " sets password of " .. toname .. "." msg_ret = S("Password of player \"@1\" set.", toname) end if toname ~= name then core.chat_send_player(toname, msg_chat) end core.log("action", msg_log) return true, msg_ret end, }) core.register_chatcommand("clearpassword", { params = S("<name>"), description = S("Set empty password for a player"), privs = {password=true}, func = function(name, param) local toname = param if toname == "" then return false, S("Name field required.") end core.set_player_password(toname, '') core.log("action", name .. " clears password of " .. toname .. ".") return true, S("Password of player \"@1\" cleared.", toname) end, }) core.register_chatcommand("auth_reload", { params = "", description = S("Reload authentication data"), privs = {server=true}, func = function(name, param) local done = core.auth_reload() return done, (done and S("Done.") or S("Failed.")) end, }) core.register_chatcommand("remove_player", { params = S("<name>"), description = S("Remove a player's data"), privs = {server=true}, func = function(name, param) local toname = param if toname == "" then return false, S("Name field required.") end local rc = core.remove_player(toname) if rc == 0 then core.log("action", name .. " removed player data of " .. toname .. ".") return true, S("Player \"@1\" removed.", toname) elseif rc == 1 then return true, S("No such player \"@1\" to remove.", toname) elseif rc == 2 then return true, S("Player \"@1\" is connected, cannot remove.", toname) end return false, S("Unhandled remove_player return code @1.", tostring(rc)) end, }) -- pos may be a non-integer position local function find_free_position_near(pos) local tries = { vector.new( 1, 0, 0), vector.new(-1, 0, 0), vector.new( 0, 0, 1), vector.new( 0, 0, -1), } for _, d in ipairs(tries) do local p = vector.add(pos, d) local n = core.get_node_or_nil(p) if n then local def = core.registered_nodes[n.name] if def and not def.walkable then return p end end end return pos end -- Teleports player <name> to <p> if possible local function teleport_to_pos(name, p) local lm = 31007 -- equals MAX_MAP_GENERATION_LIMIT in C++ if p.x < -lm or p.x > lm or p.y < -lm or p.y > lm or p.z < -lm or p.z > lm then return false, S("Cannot teleport out of map bounds!") end local teleportee = core.get_player_by_name(name) if not teleportee then return false, S("Cannot get player with name @1.", name) end if teleportee:get_attach() then return false, S("Cannot teleport, @1 " .. "is attached to an object!", name) end teleportee:set_pos(p) return true, S("Teleporting @1 to @2.", name, core.pos_to_string(p, 1)) end -- Teleports player <name> next to player <target_name> if possible local function teleport_to_player(name, target_name) if name == target_name then return false, S("One does not teleport to oneself.") end local teleportee = core.get_player_by_name(name) if not teleportee then return false, S("Cannot get teleportee with name @1.", name) end if teleportee:get_attach() then return false, S("Cannot teleport, @1 " .. "is attached to an object!", name) end local target = core.get_player_by_name(target_name) if not target then return false, S("Cannot get target player with name @1.", target_name) end local p = find_free_position_near(target:get_pos()) teleportee:set_pos(p) return true, S("Teleporting @1 to @2 at @3.", name, target_name, core.pos_to_string(p, 1)) end core.register_chatcommand("teleport", { params = S("<X>,<Y>,<Z> | <to_name> | <name> <X>,<Y>,<Z> | <name> <to_name>"), description = S("Teleport to position or player"), privs = {teleport=true}, func = function(name, param) local p = {} p.x, p.y, p.z = param:match("^([%d.-]+)[, ] *([%d.-]+)[, ] *([%d.-]+)$") p = vector.apply(p, tonumber) if p.x and p.y and p.z then return teleport_to_pos(name, p) end local target_name = param:match("^([^ ]+)$") if target_name then return teleport_to_player(name, target_name) end local has_bring_priv = core.check_player_privs(name, {bring=true}) local missing_bring_msg = S("You don't have permission to teleport " .. "other players (missing privilege: @1).", "bring") local teleportee_name teleportee_name, p.x, p.y, p.z = param:match( "^([^ ]+) +([%d.-]+)[, ] *([%d.-]+)[, ] *([%d.-]+)$") p = vector.apply(p, tonumber) if teleportee_name and p.x and p.y and p.z then if not has_bring_priv then return false, missing_bring_msg end return teleport_to_pos(teleportee_name, p) end teleportee_name, target_name = string.match(param, "^([^ ]+) +([^ ]+)$") if teleportee_name and target_name then if not has_bring_priv then return false, missing_bring_msg end return teleport_to_player(teleportee_name, target_name) end return false end, }) core.register_chatcommand("set", { params = S("([-n] <name> <value>) | <name>"), description = S("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 core.settings:set(setname, setvalue) return true, setname .. " = " .. setvalue end setname, setvalue = string.match(param, "([^ ]+) (.+)") if setname and setvalue then if not core.settings:get(setname) then return false, S("Failed. Use '/set -n <name> <value>' " .. "to create a new setting.") end core.settings:set(setname, setvalue) return true, S("@1 = @2", setname, setvalue) end setname = string.match(param, "([^ ]+)") if setname then setvalue = core.settings:get(setname) if not setvalue then setvalue = S("<not set>") end return true, S("@1 = @2", setname, setvalue) end return false, S("Invalid parameters (see /help set).") end, }) local function emergeblocks_callback(pos, action, num_calls_remaining, ctx) if ctx.total_blocks == 0 then ctx.total_blocks = num_calls_remaining + 1 ctx.current_blocks = 0 end ctx.current_blocks = ctx.current_blocks + 1 if ctx.current_blocks == ctx.total_blocks then core.chat_send_player(ctx.requestor_name, S("Finished emerging @1 blocks in @2ms.", ctx.total_blocks, string.format("%.2f", (os.clock() - ctx.start_time) * 1000))) end end local function emergeblocks_progress_update(ctx) if ctx.current_blocks ~= ctx.total_blocks then core.chat_send_player(ctx.requestor_name, S("emergeblocks update: @1/@2 blocks emerged (@3%)", ctx.current_blocks, ctx.total_blocks, string.format("%.1f", (ctx.current_blocks / ctx.total_blocks) * 100))) core.after(2, emergeblocks_progress_update, ctx) end end core.register_chatcommand("emergeblocks", { params = S("(here [<radius>]) | (<pos1> <pos2>)"), description = S("Load (or, if nonexistent, generate) map blocks contained in " .. "area pos1 to pos2 (<pos1> and <pos2> must be in parentheses)"), privs = {server=true}, func = function(name, param) local p1, p2 = parse_range_str(name, param) if p1 == false then return false, p2 end local context = { current_blocks = 0, total_blocks = 0, start_time = os.clock(), requestor_name = name } core.emerge_area(p1, p2, emergeblocks_callback, context) core.after(2, emergeblocks_progress_update, context) return true, S("Started emerge of area ranging from @1 to @2.", core.pos_to_string(p1, 1), core.pos_to_string(p2, 1)) end, }) core.register_chatcommand("deleteblocks", { params = S("(here [<radius>]) | (<pos1> <pos2>)"), description = S("Delete map blocks contained in area pos1 to pos2 " .. "(<pos1> and <pos2> must be in parentheses)"), privs = {server=true}, func = function(name, param) local p1, p2 = parse_range_str(name, param) if p1 == false then return false, p2 end if core.delete_area(p1, p2) then return true, S("Successfully cleared area " .. "ranging from @1 to @2.", core.pos_to_string(p1, 1), core.pos_to_string(p2, 1)) else return false, S("Failed to clear one or more " .. "blocks in area.") end end, }) core.register_chatcommand("fixlight", { params = S("(here [<radius>]) | (<pos1> <pos2>)"), description = S("Resets lighting in the area between pos1 and pos2 " .. "(<pos1> and <pos2> must be in parentheses)"), privs = {server = true}, func = function(name, param) local p1, p2 = parse_range_str(name, param) if p1 == false then return false, p2 end if core.fix_light(p1, p2) then return true, S("Successfully reset light in the area " .. "ranging from @1 to @2.", core.pos_to_string(p1, 1), core.pos_to_string(p2, 1)) else return false, S("Failed to load one or more blocks in area.") end end, }) core.register_chatcommand("mods", { params = "", description = S("List mods installed on the server"), privs = {}, func = function(name, param) local mods = core.get_modnames() if #mods == 0 then return true, S("No mods installed.") else return true, table.concat(core.get_modnames(), ", ") end end, }) local function handle_give_command(cmd, giver, receiver, stackstring) core.log("action", giver .. " invoked " .. cmd .. ', stackstring="' .. stackstring .. '"') local itemstack = ItemStack(stackstring) if itemstack:is_empty() then return false, S("Cannot give an empty item.") elseif (not itemstack:is_known()) or (itemstack:get_name() == "unknown") then return false, S("Cannot give an unknown item.") -- Forbid giving 'ignore' due to unwanted side effects elseif itemstack:get_name() == "ignore" then return false, S("Giving 'ignore' is not allowed.") end local receiverref = core.get_player_by_name(receiver) if receiverref == nil then return false, S("@1 is not a known player.", receiver) end local leftover = receiverref:get_inventory():add_item("main", itemstack) local partiality if leftover:is_empty() then partiality = nil elseif leftover:get_count() == itemstack:get_count() then partiality = false else partiality = true 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() local msg if partiality == true then msg = S("@1 partially added to inventory.", stackstring) elseif partiality == false then msg = S("@1 could not be added to inventory.", stackstring) else msg = S("@1 added to inventory.", stackstring) end if giver == receiver then return true, msg else core.chat_send_player(receiver, msg) local msg_other if partiality == true then msg_other = S("@1 partially added to inventory of @2.", stackstring, receiver) elseif partiality == false then msg_other = S("@1 could not be added to inventory of @2.", stackstring, receiver) else msg_other = S("@1 added to inventory of @2.", stackstring, receiver) end return true, msg_other end end core.register_chatcommand("give", { params = S("<name> <ItemString> [<count> [<wear>]]"), description = S("Give item to player"), privs = {give=true}, func = function(name, param) local toname, itemstring = string.match(param, "^([^ ]+) +(.+)$") if not toname or not itemstring then return false, S("Name and ItemString required.") end return handle_give_command("/give", name, toname, itemstring) end, }) core.register_chatcommand("giveme", { params = S("<ItemString> [<count> [<wear>]]"), description = S("Give item to yourself"), privs = {give=true}, func = function(name, param) local itemstring = string.match(param, "(.+)$") if not itemstring then return false, S("ItemString required.") end return handle_give_command("/giveme", name, name, itemstring) end, }) core.register_chatcommand("spawnentity", { params = S("<EntityName> [<X>,<Y>,<Z>]"), description = S("Spawn entity at given (or your) position"), privs = {give=true, interact=true}, func = function(name, param) local entityname, p = string.match(param, "^([^ ]+) *(.*)$") if not entityname then return false, S("EntityName required.") end core.log("action", ("%s invokes /spawnentity, entityname=%q") :format(name, entityname)) local player = core.get_player_by_name(name) if player == nil then core.log("error", "Unable to spawn entity, player is nil") return false, S("Unable to spawn entity, player is nil.") end if not core.registered_entities[entityname] then return false, S("Cannot spawn an unknown entity.") end if p == "" then p = player:get_pos() else p = core.string_to_pos(p) if p == nil then return false, S("Invalid parameters (@1).", param) end end p.y = p.y + 1 local obj = core.add_entity(p, entityname) if obj then return true, S("@1 spawned.", entityname) else return true, S("@1 failed to spawn.", entityname) end end, }) core.register_chatcommand("pulverize", { params = "", description = S("Destroy item in hand"), func = function(name, param) local player = core.get_player_by_name(name) if not player then core.log("error", "Unable to pulverize, no player.") return false, S("Unable to pulverize, no player.") end local wielded_item = player:get_wielded_item() if wielded_item:is_empty() then return false, S("Unable to pulverize, no item in hand.") end core.log("action", name .. " pulverized \"" .. wielded_item:get_name() .. " " .. wielded_item:get_count() .. "\"") player:set_wielded_item(nil) return true, S("An item was pulverized.") end, }) -- Key = player name core.rollback_punch_callbacks = {} core.register_on_punchnode(function(pos, node, puncher) local name = puncher and puncher:get_player_name() if name and core.rollback_punch_callbacks[name] then core.rollback_punch_callbacks[name](pos, node, puncher) core.rollback_punch_callbacks[name] = nil end end) core.register_chatcommand("rollback_check", { params = S("[<range>] [<seconds>] [<limit>]"), description = S("Check who last touched a node or a node near it " .. "within the time specified by <seconds>. " .. "Default: range = 0, seconds = 86400 = 24h, limit = 5. " .. "Set <seconds> to inf for no time limit"), privs = {rollback=true}, func = function(name, param) if not core.settings:get_bool("enable_rollback_recording") then return false, S("Rollback functions are disabled.") end 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 return false, S("That limit is too high!") end core.rollback_punch_callbacks[name] = function(pos, node, puncher) local name = puncher:get_player_name() core.chat_send_player(name, S("Checking @1 ...", core.pos_to_string(pos))) local actions = core.rollback_get_node_actions(pos, range, seconds, limit) if not actions then core.chat_send_player(name, S("Rollback functions are disabled.")) return end local num_actions = #actions if num_actions == 0 then core.chat_send_player(name, S("Nobody has touched the specified " .. "location in @1 seconds.", seconds)) return end local time = os.time() for i = num_actions, 1, -1 do local action = actions[i] core.chat_send_player(name, S("@1 @2 @3 -> @4 @5 seconds ago.", core.pos_to_string(action.pos), action.actor, action.oldnode.name, action.newnode.name, time - action.time)) end end return true, S("Punch a node (range=@1, seconds=@2, limit=@3).", range, seconds, limit) end, }) core.register_chatcommand("rollback", { params = S("(<name> [<seconds>]) | (:<actor> [<seconds>])"), description = S("Revert actions of a player. " .. "Default for <seconds> is 60. " .. "Set <seconds> to inf for no time limit"), privs = {rollback=true}, func = function(name, param) if not core.settings:get_bool("enable_rollback_recording") then return false, S("Rollback functions are disabled.") end local target_name, seconds = string.match(param, ":([^ ]+) *(%d*)") local rev_msg if not target_name then local player_name player_name, seconds = string.match(param, "([^ ]+) *(%d*)") if not player_name then return false, S("Invalid parameters. " .. "See /help rollback and " .. "/help rollback_check.") end seconds = tonumber(seconds) or 60 target_name = "player:"..player_name rev_msg = S("Reverting actions of player '@1' since @2 seconds.", player_name, seconds) else seconds = tonumber(seconds) or 60 rev_msg = S("Reverting actions of @1 since @2 seconds.", target_name, seconds) end core.chat_send_player(name, rev_msg) local success, log = core.rollback_revert_actions_by( target_name, seconds) local response = "" if #log > 100 then response = S("(log is too long to show)").."\n" else for _, line in pairs(log) do response = response .. line .. "\n" end end if success then response = response .. S("Reverting actions succeeded.") else response = response .. S("Reverting actions FAILED.") end return success, response end, }) core.register_chatcommand("status", { description = S("Show server status"), func = function(name, param) local status = core.get_server_status(name, false) if status and status ~= "" then return true, status end return false, S("This command was disabled by a mod or game.") end, }) core.register_chatcommand("time", { params = S("[<0..23>:<0..59> | <0..24000>]"), description = S("Show or set time of day"), privs = {}, func = function(name, param) if param == "" then local current_time = math.floor(core.get_timeofday() * 1440) local minutes = current_time % 60 local hour = (current_time - minutes) / 60 return true, S("Current time is @1:@2.", string.format("%d", hour), string.format("%02d", minutes)) end local player_privs = core.get_player_privs(name) if not player_privs.settime then return false, S("You don't have permission to run " .. "this command (missing privilege: @1).", "settime") end local hour, minute = param:match("^(%d+):(%d+)$") if not hour then local new_time = tonumber(param) or -1 if new_time ~= new_time or new_time < 0 or new_time > 24000 then return false, S("Invalid time (must be between 0 and 24000).") end core.set_timeofday(new_time / 24000) core.log("action", name .. " sets time to " .. new_time) return true, S("Time of day changed.") end hour = tonumber(hour) minute = tonumber(minute) if hour < 0 or hour > 23 then return false, S("Invalid hour (must be between 0 and 23 inclusive).") elseif minute < 0 or minute > 59 then return false, S("Invalid minute (must be between 0 and 59 inclusive).") end core.set_timeofday((hour * 60 + minute) / 1440) core.log("action", ("%s sets time to %d:%02d"):format(name, hour, minute)) return true, S("Time of day changed.") end, }) core.register_chatcommand("days", { description = S("Show day count since world creation"), func = function(name, param) return true, S("Current day is @1.", core.get_day_count()) end }) local function parse_shutdown_param(param) local delay, reconnect, message local one, two, three one, two, three = param:match("^(%S+) +(%-r) +(.*)") if one and two and three then -- 3 arguments: delay, reconnect and message return one, two, three end -- 2 arguments one, two = param:match("^(%S+) +(.*)") if one and two then if tonumber(one) then delay = one if two == "-r" then reconnect = two else message = two end elseif one == "-r" then reconnect, message = one, two end return delay, reconnect, message end -- 1 argument one = param:match("(.*)") if tonumber(one) then delay = one elseif one == "-r" then reconnect = one else message = one end return delay, reconnect, message end core.register_chatcommand("shutdown", { params = S("[<delay_in_seconds> | -1] [-r] [<message>]"), description = S("Shutdown server (-1 cancels a delayed shutdown, -r allows players to reconnect)"), privs = {server=true}, func = function(name, param) local delay, reconnect, message = parse_shutdown_param(param) local bool_reconnect = reconnect == "-r" if not message then message = "" end delay = tonumber(delay) or 0 if delay == 0 then core.log("action", name .. " shuts down server") core.chat_send_all("*** "..S("Server shutting down (operator request).")) end core.request_shutdown(message:trim(), bool_reconnect, delay) return true end, }) core.register_chatcommand("ban", { params = S("[<name>]"), description = S("Ban the IP of a player or show the ban list"), privs = {ban=true}, func = function(name, param) if param == "" then local ban_list = core.get_ban_list() if ban_list == "" then return true, S("The ban list is empty.") else return true, S("Ban list: @1", ban_list) end end if not core.get_player_by_name(param) then return false, S("Player is not online.") end if not core.ban_player(param) then return false, S("Failed to ban player.") end local desc = core.get_ban_description(param) core.log("action", name .. " bans " .. desc .. ".") return true, S("Banned @1.", desc) end, }) core.register_chatcommand("unban", { params = S("<name> | <IP_address>"), description = S("Remove IP ban belonging to a player/IP"), privs = {ban=true}, func = function(name, param) if not core.unban_player_or_ip(param) then return false, S("Failed to unban player/IP.") end core.log("action", name .. " unbans " .. param) return true, S("Unbanned @1.", param) end, }) core.register_chatcommand("kick", { params = S("<name> [<reason>]"), description = S("Kick a player"), privs = {kick=true}, func = function(name, param) local tokick, reason = param:match("([^ ]+) (.+)") tokick = tokick or param if not core.kick_player(tokick, reason) then return false, S("Failed to kick player @1.", tokick) end local log_reason = "" if reason then log_reason = " with reason \"" .. reason .. "\"" end core.log("action", name .. " kicks " .. tokick .. log_reason) return true, S("Kicked @1.", tokick) end, }) core.register_chatcommand("clearobjects", { params = S("[full | quick]"), description = S("Clear all objects in world"), privs = {server=true}, func = function(name, param) local options = {} if param == "" or param == "quick" then options.mode = "quick" elseif param == "full" then options.mode = "full" else return false, S("Invalid usage, see /help clearobjects.") end core.log("action", name .. " clears objects (" .. options.mode .. " mode).") if options.mode == "full" then core.chat_send_all(S("Clearing all objects. This may take a long time. " .. "You may experience a timeout. (by @1)", name)) end core.clear_objects(options) core.log("action", "Object clearing done.") core.chat_send_all("*** "..S("Cleared all objects.")) return true end, }) core.register_chatcommand("msg", { params = S("<name> <message>"), description = S("Send a direct message to a player"), privs = {shout=true}, func = function(name, param) local sendto, message = param:match("^(%S+)%s(.+)$") if not sendto then return false, S("Invalid usage, see /help msg.") end if not core.get_player_by_name(sendto) then return false, S("The player @1 is not online.", sendto) end core.log("action", "DM from " .. name .. " to " .. sendto .. ": " .. message) core.chat_send_player(sendto, S("DM from @1: @2", name, message)) return true, S("Message sent.") end, }) core.register_chatcommand("last-login", { params = S("[<name>]"), description = S("Get the last login time of a player or yourself"), func = function(name, param) if param == "" then param = name end local pauth = core.get_auth_handler().get_auth(param) if pauth and pauth.last_login and pauth.last_login ~= -1 then -- Time in UTC, ISO 8601 format return true, S("@1's last login time was @2.", param, os.date("!%Y-%m-%dT%H:%M:%SZ", pauth.last_login)) end return false, S("@1's last login time is unknown.", param) end, }) core.register_chatcommand("clearinv", { params = S("[<name>]"), description = S("Clear the inventory of yourself or another player"), func = function(name, param) local player if param and param ~= "" and param ~= name then if not core.check_player_privs(name, {server=true}) then return false, S("You don't have permission to " .. "clear another player's inventory " .. "(missing privilege: @1).", "server") end player = core.get_player_by_name(param) core.chat_send_player(param, S("@1 cleared your inventory.", name)) else player = core.get_player_by_name(name) end if player then player:get_inventory():set_list("main", {}) player:get_inventory():set_list("craft", {}) player:get_inventory():set_list("craftpreview", {}) core.log("action", name.." clears "..player:get_player_name().."'s inventory") return true, S("Cleared @1's inventory.", player:get_player_name()) else return false, S("Player must be online to clear inventory!") end end, }) local function handle_kill_command(killer, victim) if core.settings:get_bool("enable_damage") == false then return false, S("Players can't be killed, damage has been disabled.") end local victimref = core.get_player_by_name(victim) if victimref == nil then return false, S("Player @1 is not online.", victim) elseif victimref:get_hp() <= 0 then if killer == victim then return false, S("You are already dead.") else return false, S("@1 is already dead.", victim) end end if killer ~= victim then core.log("action", string.format("%s killed %s", killer, victim)) end -- Kill victim victimref:set_hp(0) return true, S("@1 has been killed.", victim) end core.register_chatcommand("kill", { params = S("[<name>]"), description = S("Kill player or yourself"), privs = {server=true}, func = function(name, param) return handle_kill_command(name, param == "" and name or param) end, })