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-rw-r--r--xban2/init.lua331
1 files changed, 331 insertions, 0 deletions
diff --git a/xban2/init.lua b/xban2/init.lua
new file mode 100644
index 0000000..81818a8
--- /dev/null
+++ b/xban2/init.lua
@@ -0,0 +1,331 @@
+
+xban = { MP = minetest.get_modpath(minetest.get_current_modname()) }
+
+dofile(xban.MP.."/serialize.lua")
+
+local db = { }
+local tempbans = { }
+
+local DEF_SAVE_INTERVAL = 300 -- 5 minutes
+local DEF_DB_FILENAME = minetest.get_worldpath().."/xban.db"
+
+local DB_FILENAME = minetest.setting_get("xban.db_filename")
+local SAVE_INTERVAL = tonumber(
+ minetest.setting_get("xban.db_save_interval")) or DEF_SAVE_INTERVAL
+
+if (not DB_FILENAME) or (DB_FILENAME == "") then
+ DB_FILENAME = DEF_DB_FILENAME
+end
+
+local function make_logger(level)
+ return function(text, ...)
+ minetest.log(level, "[xban] "..text:format(...))
+ end
+end
+
+local ACTION = make_logger("action")
+local INFO = make_logger("info")
+local WARNING = make_logger("warning")
+local ERROR = make_logger("error")
+
+local unit_to_secs = {
+ s = 1, m = 60, h = 3600,
+ D = 86400, W = 604800, M = 2592000, Y = 31104000,
+ [""] = 1,
+}
+
+local function parse_time(t) --> secs
+ local secs = 0
+ for num, unit in t:gmatch("(%d+)([smhDWMY]?)") do
+ secs = secs + (tonumber(num) * (unit_to_secs[unit] or 1))
+ end
+ return secs
+end
+
+function xban.find_entry(player, create) --> entry, index
+ for index, e in ipairs(db) do
+ for name in pairs(e.names) do
+ if name == player then
+ return e, index
+ end
+ end
+ end
+ if create then
+ print(("Created new entry for `%s'"):format(player))
+ local e = {
+ names = { [player]=true },
+ banned = false,
+ record = { },
+ }
+ table.insert(db, e)
+ return e, #db
+ end
+ return nil
+end
+
+function xban.get_info(player) --> ip_name_list, banned, last_record
+ local e = xban.find_entry(player)
+ if not e then
+ return nil, "No such entry"
+ end
+ return e.names, e.banned, e.record[#e.record]
+end
+
+function xban.ban_player(player, source, expires, reason) --> bool, err
+ local e = xban.find_entry(player, true)
+ local rec = {
+ source = source,
+ time = os.time(),
+ expires = expires,
+ reason = reason,
+ }
+ table.insert(e.record, rec)
+ e.names[player] = true
+ local pl = minetest.get_player_by_name(player)
+ if pl then
+ local ip = minetest.get_player_ip(player)
+ if ip then
+ e.names[ip] = true
+ end
+ e.last_pos = pl:getpos()
+ end
+ e.reason = reason
+ e.time = rec.time
+ e.expires = expires
+ e.banned = true
+ local msg
+ local date = (expires and os.date("%c", expires)
+ or "the end of time")
+ if expires then
+ table.insert(tempbans, e)
+ msg = ("Banned: Expires: %s, Reason: %s"):format(date, reason)
+ else
+ msg = ("Banned: Reason: %s"):format(reason)
+ end
+ for nm in pairs(e.names) do
+ minetest.kick_player(nm, msg)
+ end
+ ACTION("%s bans %s until %s for reason: %s", source, player,
+ date, reason)
+ ACTION("Banned Names/IPs: %s", table.concat(e.names, ", "))
+ return true
+end
+
+function xban.unban_player(player, source) --> bool, err
+ local e = xban.find_entry(player)
+ if not e then
+ return nil, "No such entry"
+ end
+ local rec = {
+ source = source,
+ time = os.time(),
+ reason = "Unbanned",
+ }
+ table.insert(e.record, rec)
+ e.banned = false
+ e.reason = nil
+ e.expires = nil
+ e.time = nil
+ ACTION("%s unbans %s", source, player)
+ ACTION("Unbanned Names/IPs: %s", table.concat(e.names, ", "))
+ return true
+end
+
+function xban.get_record(player)
+ local e = xban.find_entry(player)
+ if not e then
+ return nil, ("No entry for `%s'"):format(player)
+ elseif (not e.record) or (#e.record == 0) then
+ return nil, ("`%s' has no ban records"):format(player)
+ end
+ local record = { }
+ for _, rec in ipairs(e.record) do
+ local msg = rec.reason or "No reason given."
+ if rec.expires then
+ msg = msg..(", Expires: %s"):format(os.date("%c", e.expires))
+ end
+ if rec.source then
+ msg = msg..", Source: "..rec.source
+ end
+ table.insert(record, ("[%s]: %s"):format(os.date("%c", e.time), msg))
+ end
+ local last_pos
+ if e.last_pos then
+ last_pos = ("User was last seen at %s"):format(
+ minetest.pos_to_string(e.last_pos))
+ end
+ return record, last_pos
+end
+
+minetest.register_on_prejoinplayer(function(name, ip)
+ local e = xban.find_entry(name) or xban.find_entry(ip)
+ if not e then return end
+ if e.banned then
+ local date = (e.expires and os.date("%c", e.expires)
+ or "the end of time")
+ return ("Banned: Expires: %s, Reason: %s"):format(
+ date, e.reason)
+ end
+end)
+
+minetest.register_on_joinplayer(function(player)
+ local name = player:get_player_name()
+ local e = xban.find_entry(name)
+ local ip = minetest.get_player_ip(name)
+ if not e then
+ if ip then
+ e = xban.find_entry(ip, true)
+ else
+ return
+ end
+ end
+ e.names[name] = true
+ if ip then
+ e.names[ip] = true
+ end
+ e.last_seen = os.time()
+end)
+
+minetest.register_chatcommand("xban", {
+ description = "XBan a player",
+ params = "<player> <reason>",
+ privs = { ban=true },
+ func = function(name, params)
+ local plname, reason = params:match("(%S+)%s+(.+)")
+ if not (plname and reason) then
+ return false, "Usage: /xban <player> <reason>"
+ end
+ xban.ban_player(plname, name, nil, reason)
+ return true, ("Banned %s."):format(plname)
+ end,
+})
+
+minetest.register_chatcommand("xtempban", {
+ description = "XBan a player temporarily",
+ params = "<player> <time> <reason>",
+ privs = { ban=true },
+ func = function(name, params)
+ local plname, time, reason = params:match("(%S+)%s+(%S+)%s+(.+)")
+ if not (plname and time and reason) then
+ return false, "Usage: /xtempban <player> <time> <reason>"
+ end
+ time = parse_time(time)
+ if time < 60 then
+ return false, "You must ban for at least 60 seconds."
+ end
+ local expires = os.time() + time
+ xban.ban_player(plname, name, expires, reason)
+ return true, ("Banned %s until %s."):format(plname, os.date("%c", expires))
+ end,
+})
+
+minetest.register_chatcommand("xunban", {
+ description = "XUnBan a player",
+ params = "<player_or_ip>",
+ privs = { ban=true },
+ func = function(name, params)
+ local plname = params:match("%S+")
+ if not plname then
+ minetest.chat_send_player(name,
+ "Usage: /xunban <player_or_ip>")
+ return
+ end
+ local ok, e = xban.unban_player(plname, name)
+ return ok, ok and ("Unbanned %s."):format(plname) or e
+ end,
+})
+
+minetest.register_chatcommand("xban_record", {
+ description = "Show the ban records of a player",
+ params = "<player_or_ip>",
+ privs = { ban=true },
+ func = function(name, params)
+ local plname = params:match("%S+")
+ if not plname then
+ return false, "Usage: /xban_record <player_or_ip>"
+ end
+ local record, last_pos = xban.get_record(plname)
+ if not record then
+ local err = last_pos
+ minetest.chat_send_player(name, "[xban] "..err)
+ return
+ end
+ for _, e in ipairs(record) do
+ minetest.chat_send_player(name, "[xban] "..e)
+ end
+ if last_pos then
+ minetest.chat_send_player(name, "[xban] "..last_pos)
+ end
+ return true, "Record listed."
+ end,
+})
+
+local function check_temp_bans()
+ minetest.after(60, check_temp_bans)
+ local to_rm = { }
+ local now = os.time()
+ for i, e in ipairs(tempbans) do
+ if e.expires and (e.expires <= now) then
+ table.insert(to_rm, i)
+ e.banned = false
+ e.expires = nil
+ e.reason = nil
+ e.time = nil
+ end
+ end
+ for _, i in ipairs(to_rm) do
+ table.remove(tempbans, i)
+ end
+end
+
+local function save_db()
+ minetest.after(SAVE_INTERVAL, save_db)
+ local f, e = io.open(DB_FILENAME, "wt")
+ db.timestamp = os.time()
+ if f then
+ local ok, err = f:write(xban.serialize(db))
+ if not ok then
+ WARNING("Unable to save database: %s", err)
+ end
+ else
+ WARNING("Unable to save database: %s", e)
+ end
+ if f then f:close() end
+ return
+end
+
+local function load_db()
+ local f, e = io.open(DB_FILENAME, "rt")
+ if not f then
+ WARNING("Unable to load database: %s", e)
+ return
+ end
+ local cont = f:read("*a")
+ if not cont then
+ WARNING("Unable to load database: %s", "Read failed")
+ return
+ end
+ local t = minetest.deserialize(cont)
+ if not t then
+ WARNING("Unable to load database: %s",
+ "Deserialization failed")
+ return
+ end
+ db = t
+ tempbans = { }
+ for _, entry in ipairs(db) do
+ if entry.banned and entry.expires then
+ table.insert(tempbans, entry)
+ end
+ end
+end
+
+minetest.register_on_shutdown(save_db)
+minetest.after(SAVE_INTERVAL, save_db)
+load_db()
+xban.db = db
+
+minetest.after(1, check_temp_bans)
+
+dofile(xban.MP.."/dbimport.lua")
+dofile(xban.MP.."/gui.lua")