forked from ThomasMonroe314/ugxrealms
add mysql_auth mod
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123
worldmods/mysql_auth/README.md
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123
worldmods/mysql_auth/README.md
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@ -0,0 +1,123 @@
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# mysql_auth
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Plug Minetest's auth mechanism into a MySQL database.
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# Configuration
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First, if mod security is enabled (`secure.enable_security = true`), this mod must be added as
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a trusted mod (in the `secure.trusted_mods` config entry). There is **no** other solution to
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make it work under mod security.
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By default `mysql_auth` doesn't run in singleplayer. This can be overriden by setting
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`mysql_auth.enable_singleplayer` to `true`.
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Configuration may be done as regular Minetest settings entries, or using a config file, allowing
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for more configuration options; to do so specify the path as `mysql_auth.cfgfile`. This config
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must contain a Lua table that can be read by `minetest.deserialize`, i.e. a regular table
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definition follwing a `return` statement (see the example below).
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When using flat Minetest configuation entries, all the following option names must be prefixed
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with `mysql_auth.`. When using a config file, entries are to be hierarchised as per the dot
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separator.
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Values written next to option names are default values.
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## Database connection
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### Flat config file
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```lua
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db.host = 'localhost'
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db.user = nil -- MySQL connector defaults to current username
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db.pass = nil -- Using password: NO
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db.port = nil -- MySQL connector defaults to either 3306, or no port if using localhost/unix socket
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db.db = nil -- <== Setting this is required
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```
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### Lua table config file
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Connection options are passed as a table through the `db.connopts` entry.
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Its format must be the same as [LuaPower's MySQL module `mysql.connect(options_t)` function][mycn],
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that is (all members are optional);
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```lua
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connopts = {
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host = ...,
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user = ...,
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pass = ...,
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db = ...,
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port = ...,
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unix_socket = ...,
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flags = { ... },
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options = { ... },
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attrs = { ... },
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-- Also key, cert, ca, cpath, cipher
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}
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```
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## Auth table schema finetuning
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```lua
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db.tables.auths.name = 'auths'
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db.tables.auths.schema.userid = 'userid'
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db.tables.auths.schema.userid_type = 'INT'
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db.tables.auths.schema.username = 'username'
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db.tables.auths.schema.username_type = 'VARCHAR(32)'
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db.tables.auths.schema.password = 'password'
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db.tables.auths.schema.password_type = 'VARCHAR(512)'
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db.tables.auths.schema.privs = 'privs'
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db.tables.auths.schema.privs_type = 'VARCHAR(512)'
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db.tables.auths.schema.lastlogin = 'lastlogin'
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db.tables.auths.schema.lastlogin_type = 'BIGINT'
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```
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The `_type` config entries are only used when creating an auth table, i.e. when
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`db.tables.auths.name` doesn't exist.
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## Examples
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### Example 1
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#### Using a Lua config file
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`minetest.conf`:
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```
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mysql_auth.cfgfile = /srv/minetest/skyblock/mysql_auth_config
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```
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`/srv/minetest/skyblock/mysql_auth_config`:
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```lua
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return {
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db = {
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connopts = {
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user = 'minetest',
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pass = 'BQy77wK$Um6es3Bi($iZ*w3N',
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db = 'minetest'
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},
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tables = {
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auths = {
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name = 'skyblock_auths'
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}
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}
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}
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}
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```
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#### Using only Minetest config entries
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`minetest.conf`:
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```
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mysql_auth.db.user = minetest
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mysql_auth.db.pass = BQy77wK$Um6es3Bi($iZ*w3N
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mysql_auth.db.db = minetest
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mysql_auth.db.tables.auth.name = skyblock_auths
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```
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# License
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`mysql_auth` is licensed under [LGPLv3](https://www.gnu.org/licenses/lgpl.html).
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Using the Public Domain-licensed LuaPower `mysql` module.
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[mycn]: https://luapower.com/mysql#mysql.connectoptions_t---conn
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47
worldmods/mysql_auth/auth_txt_import.lua
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47
worldmods/mysql_auth/auth_txt_import.lua
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local modname = minetest.get_current_modname()
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local modpath = minetest.get_modpath(modname)
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local thismod = _G[modname]
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function thismod.import_auth_txt()
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minetest.log('action', modname .. ": Importing auth.txt")
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local auth_file_path = minetest.get_worldpath() .. '/auth.txt'
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local create_auth_stmt = thismod.create_auth_stmt
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local create_auth_params = thismod.create_auth_params
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local conn = thismod.conn
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local file, errmsg = io.open(auth_file_path, 'rb')
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if not file then
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minetest.log('action', modname .. ": " .. auth_file_path .. " could not be opened for reading" ..
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"(" .. errmsg .. "); no auth entries imported")
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return
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end
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conn:query('SET autocommit=0')
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conn:query('START TRANSACTION')
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for line in file:lines() do
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if line ~= "" then
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local fields = line:split(":", true)
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local name, password, privilege_string, last_login = unpack(fields)
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last_login = tonumber(last_login)
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if not (name and password and privilege_string) then
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minetest.log('warning', modname .. ": Invalid line in auth.txt, skipped: " .. dump(line))
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end
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minetest.log('info', modname .. " importing player '"..name.."'")
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create_auth_params:set(1, name)
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create_auth_params:set(2, password)
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create_auth_params:set(3, privilege_string)
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create_auth_params:set(4, last_login)
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local success, msg = pcall(create_auth_stmt.exec, create_auth_stmt)
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if not success then
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error(modname .. ": import failed: " .. msg)
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end
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if create_auth_stmt:affected_rows() ~= 1 then
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error(modname .. ": create_auth failed: affected row count is " ..
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create_auth_stmt:affected_rows() .. ", expected 1")
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end
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end
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end
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conn:query('COMMIT')
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conn:query('SET autocommit=1')
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io.close(file)
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minetest.log('action', modname .. ": Finished importing auth.txt")
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end
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2
worldmods/mysql_auth/depends.txt
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2
worldmods/mysql_auth/depends.txt
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mysql_base
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299
worldmods/mysql_auth/init.lua
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299
worldmods/mysql_auth/init.lua
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local modname = minetest.get_current_modname()
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local modpath = minetest.get_modpath(modname)
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local thismod = {
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enabled = false
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}
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_G[modname] = thismod
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if not mysql_base.enabled then
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minetest.log('action', modname .. ": mysql_base disabled, not loading mod")
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return
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end
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local singleplayer = minetest.is_singleplayer() -- Caching is OK since you can't open a game to
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-- multiplayer unless you restart it.
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if not minetest.setting_get(modname .. '.enable_singleplayer') and singleplayer then
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minetest.log('action', modname .. ": Not adding auth handler because of singleplayer game")
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return
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end
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enabled = true
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do
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local get = mysql_base.mkget(modname)
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local conn, dbname = mysql_base.conn, mysql_base.dbname
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local tables = {}
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do -- Tables and schema settings
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local t_auths = get('db.tables.auths')
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if type(t_auths) == 'table' then
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tables.auths = t_auths
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else
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tables.auths = {}
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tables.auths.name = get('db.tables.auths.name')
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tables.auths.schema = {}
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local S = tables.auths.schema
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S.userid = get('db.tables.auths.schema.userid')
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S.username = get('db.tables.auths.schema.username')
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S.password = get('db.tables.auths.schema.password')
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S.privs = get('db.tables.auths.schema.privs')
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S.lastlogin = get('db.tables.auths.schema.lastlogin')
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S.userid_type = get('db.tables.auths.schema.userid_type')
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S.username_type = get('db.tables.auths.schema.username_type')
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S.password_type = get('db.tables.auths.schema.password_type')
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S.privs_type = get('db.tables.auths.schema.privs_type')
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S.lastlogin_type = get('db.tables.auths.schema.lastlogin_type')
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end
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do -- Default values
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tables.auths.name = tables.auths.name or 'auths'
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tables.auths.schema = tables.auths.schema or {}
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local S = tables.auths.schema
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S.userid = S.userid or 'userid'
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S.username = S.username or 'username'
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S.password = S.password or 'password'
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S.privs = S.privs or 'privs'
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S.lastlogin = S.lastlogin or 'lastlogin'
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S.userid_type = S.userid_type or 'INT'
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S.username_type = S.username_type or 'VARCHAR(32)'
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S.password_type = S.password_type or 'VARCHAR(512)'
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S.privs_type = S.privs_type or 'VARCHAR(512)'
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S.lastlogin_type = S.lastlogin_type or 'BIGINT'
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-- Note lastlogin doesn't use the TIMESTAMP type, which is 32-bit and therefore
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-- subject to the year 2038 problem.
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end
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end
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local auth_table_created
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-- Auth table existence check and setup
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if not mysql_base.table_exists(tables.auths.name) then
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-- Auth table doesn't exist, create it
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local S = tables.auths.schema
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conn:query('CREATE TABLE ' .. tables.auths.name .. ' (' ..
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S.userid .. ' ' .. S.userid_type .. ' NOT NULL AUTO_INCREMENT,' ..
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S.username .. ' ' .. S.username_type .. ' NOT NULL,' ..
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S.password .. ' ' .. S.password_type .. ' NOT NULL,' ..
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S.privs .. ' ' .. S.privs_type .. ' NOT NULL,' ..
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S.lastlogin .. ' ' .. S.lastlogin_type .. ',' ..
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'PRIMARY KEY (' .. S.userid .. '),' ..
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'UNIQUE (' .. S.username .. ')' ..
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')')
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minetest.log('action', modname .. " created table '" .. dbname .. "." .. tables.auths.name ..
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"'")
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auth_table_created = true
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end
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local S = tables.auths.schema
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local get_auth_stmt = conn:prepare('SELECT ' .. S.userid .. ',' .. S.password .. ',' .. S.privs ..
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',' .. S.lastlogin .. ' FROM ' .. tables.auths.name .. ' WHERE ' .. S.username .. '=?')
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thismod.get_auth_stmt = get_auth_stmt
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local get_auth_params = get_auth_stmt:bind_params({S.username_type})
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thismod.get_auth_params = get_auth_params
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local get_auth_results = get_auth_stmt:bind_result({S.userid_type, S.password_type, S.privs_type,
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S.lastlogin_type})
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thismod.get_auth_results = get_auth_results
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local create_auth_stmt = conn:prepare('INSERT INTO ' .. tables.auths.name .. '(' .. S.username ..
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',' .. S.password .. ',' .. S.privs .. ',' .. S.lastlogin .. ') VALUES (?,?,?,?)')
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thismod.create_auth_stmt = create_auth_stmt
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local create_auth_params = create_auth_stmt:bind_params({S.username_type, S.password_type,
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S.privs_type, S.lastlogin_type})
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thismod.create_auth_params = create_auth_params
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local delete_auth_stmt = conn:prepare('DELETE FROM ' .. tables.auths.name .. ' WHERE ' ..
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S.username .. '=?')
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thismod.delete_auth_stmt = delete_auth_stmt
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local delete_auth_params = delete_auth_stmt:bind_params({S.username_type})
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thismod.delete_auth_params = delete_auth_params
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local set_password_stmt = conn:prepare('UPDATE ' .. tables.auths.name .. ' SET ' .. S.password ..
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'=? WHERE ' .. S.username .. '=?')
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thismod.set_password_stmt = set_password_stmt
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local set_password_params = set_password_stmt:bind_params({S.password_type, S.username_type})
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thismod.set_password_params = set_password_params
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local set_privileges_stmt = conn:prepare('UPDATE ' .. tables.auths.name .. ' SET ' .. S.privs ..
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'=? WHERE ' .. S.username .. '=?')
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thismod.set_privileges_stmt = set_privileges_stmt
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local set_privileges_params = set_privileges_stmt:bind_params({S.privs_type, S.username_type})
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thismod.set_privileges_params = set_privileges_params
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local record_login_stmt = conn:prepare('UPDATE ' .. tables.auths.name .. ' SET ' ..
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S.lastlogin .. '=? WHERE ' .. S.username .. '=?')
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thismod.record_login_stmt = record_login_stmt
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local record_login_params = record_login_stmt:bind_params({S.lastlogin_type, S.username_type})
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thismod.record_login_params = record_login_params
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local enumerate_auths_query = 'SELECT ' .. S.username .. ',' .. S.password .. ',' .. S.privs ..
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',' .. S.lastlogin .. ' FROM ' .. tables.auths.name
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thismod.enumerate_auths_query = enumerate_auths_query
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if auth_table_created and get('import_auth_txt_on_table_create') ~= 'false' then
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if not thismod.import_auth_txt then
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dofile(modpath .. '/auth_txt_import.lua')
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end
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thismod.import_auth_txt()
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end
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thismod.auth_handler = {
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get_auth = function(name)
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assert(type(name) == 'string')
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get_auth_params:set(1, name)
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local success, msg = pcall(get_auth_stmt.exec, get_auth_stmt)
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if not success then
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minetest.log('error', modname .. ": get_auth(" .. name .. ") failed: " .. msg)
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return nil
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end
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get_auth_stmt:store_result()
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if not get_auth_stmt:fetch() then
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-- No such auth row exists
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return nil
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end
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while get_auth_stmt:fetch() do
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minetest.log('warning', modname .. ": get_auth(" .. name .. "): multiples lines were" ..
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" returned")
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end
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local userid, password, privs_str, lastlogin = get_auth_results:get(1),
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get_auth_results:get(2), get_auth_results:get(3), get_auth_results:get(4)
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local admin = (name == minetest.setting_get("name"))
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local privs
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if singleplayer or admin then
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privs = {}
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-- If admin, grant all privs, if singleplayer, grant all privs w/ give_to_singleplayer
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for priv, def in pairs(core.registered_privileges) do
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||||||
|
if (singleplayer and def.give_to_singleplayer) or admin then
|
||||||
|
privs[priv] = true
|
||||||
|
end
|
||||||
|
end
|
||||||
|
if admin and not thismod.admin_get_auth_called then
|
||||||
|
thismod.admin_get_auth_called = true
|
||||||
|
thismod.auth_handler.set_privileges(name, privs)
|
||||||
|
end
|
||||||
|
else
|
||||||
|
privs = minetest.string_to_privs(privs_str)
|
||||||
|
end
|
||||||
|
return {
|
||||||
|
userid = userid,
|
||||||
|
password = password,
|
||||||
|
privileges = privs,
|
||||||
|
last_login = tonumber(lastlogin)
|
||||||
|
}
|
||||||
|
end,
|
||||||
|
create_auth = function(name, password, reason)
|
||||||
|
assert(type(name) == 'string')
|
||||||
|
assert(type(password) == 'string')
|
||||||
|
minetest.log('info', modname .. " creating player '"..name.."'" .. (reason or ""))
|
||||||
|
create_auth_params:set(1, name)
|
||||||
|
create_auth_params:set(2, password)
|
||||||
|
create_auth_params:set(3, minetest.setting_get("default_privs"))
|
||||||
|
create_auth_params:set(4, math.floor(os.time()))
|
||||||
|
local success, msg = pcall(create_auth_stmt.exec, create_auth_stmt)
|
||||||
|
if not success then
|
||||||
|
minetest.log('error', modname .. ": create_auth(" .. name .. ") failed: " .. msg)
|
||||||
|
return false
|
||||||
|
end
|
||||||
|
if create_auth_stmt:affected_rows() ~= 1 then
|
||||||
|
minetest.log('error', modname .. ": create_auth(" .. name .. ") failed: affected row" ..
|
||||||
|
" count is " .. create_auth_stmt:affected_rows() .. ", expected 1")
|
||||||
|
return false
|
||||||
|
end
|
||||||
|
return true
|
||||||
|
end,
|
||||||
|
delete_auth = function(name)
|
||||||
|
assert(type(name) == 'string')
|
||||||
|
minetest.log('info', modname .. " deleting player '"..name.."'")
|
||||||
|
delete_auth_params:set(1, name)
|
||||||
|
local success, msg = pcall(delete_auth_stmt.exec, delete_auth_stmt)
|
||||||
|
if not success then
|
||||||
|
minetest.log('error', modname .. ": delete_auth(" .. name .. ") failed: " .. msg)
|
||||||
|
return false
|
||||||
|
end
|
||||||
|
if delete_auth_stmt:affected_rows() ~= 1 then
|
||||||
|
minetest.log('error', modname .. ": delete_auth(" .. name .. ") failed: affected row" ..
|
||||||
|
" count is " .. delete_auth_stmt:affected_rows() .. ", expected 1")
|
||||||
|
return false
|
||||||
|
end
|
||||||
|
return true
|
||||||
|
end,
|
||||||
|
set_password = function(name, password)
|
||||||
|
assert(type(name) == 'string')
|
||||||
|
assert(type(password) == 'string')
|
||||||
|
if not thismod.auth_handler.get_auth(name) then
|
||||||
|
return thismod.auth_handler.create_auth(name, password, " because set_password was requested")
|
||||||
|
else
|
||||||
|
minetest.log('info', modname .. " setting password of player '" .. name .. "'")
|
||||||
|
set_password_params:set(1, password)
|
||||||
|
set_password_params:set(2, name)
|
||||||
|
local success, msg = pcall(set_password_stmt.exec, set_password_stmt)
|
||||||
|
if not success then
|
||||||
|
minetest.log('error', modname .. ": set_password(" .. name .. ") failed: " .. msg)
|
||||||
|
return false
|
||||||
|
end
|
||||||
|
if set_password_stmt:affected_rows() ~= 1 then
|
||||||
|
minetest.log('error', modname .. ": set_password(" .. name .. ") failed: affected row" ..
|
||||||
|
" count is " .. set_password_stmt:affected_rows() .. ", expected 1")
|
||||||
|
return false
|
||||||
|
end
|
||||||
|
return true
|
||||||
|
end
|
||||||
|
end,
|
||||||
|
set_privileges = function(name, privileges)
|
||||||
|
assert(type(name) == 'string')
|
||||||
|
assert(type(privileges) == 'table')
|
||||||
|
set_privileges_params:set(1, minetest.privs_to_string(privileges))
|
||||||
|
set_privileges_params:set(2, name)
|
||||||
|
local success, msg = pcall(set_privileges_stmt.exec, set_privileges_stmt)
|
||||||
|
if not success then
|
||||||
|
minetest.log('error', modname .. ": set_privileges(" .. name .. ") failed: " .. msg)
|
||||||
|
return false
|
||||||
|
end
|
||||||
|
minetest.notify_authentication_modified(name)
|
||||||
|
return true
|
||||||
|
end,
|
||||||
|
reload = function()
|
||||||
|
return true
|
||||||
|
end,
|
||||||
|
record_login = function(name)
|
||||||
|
assert(type(name) == 'string')
|
||||||
|
record_login_params:set(1, math.floor(os.time()))
|
||||||
|
record_login_params:set(2, name)
|
||||||
|
local success, msg = pcall(record_login_stmt.exec, record_login_stmt)
|
||||||
|
if not success then
|
||||||
|
minetest.log('error', modname .. ": record_login(" .. name .. ") failed: " .. msg)
|
||||||
|
return false
|
||||||
|
end
|
||||||
|
if record_login_stmt:affected_rows() ~= 1 then
|
||||||
|
minetest.log('error', modname .. ": record_login(" .. name .. ") failed: affected row" ..
|
||||||
|
" count is " .. record_login_stmt:affected_rows() .. ", expected 1")
|
||||||
|
return false
|
||||||
|
end
|
||||||
|
return true
|
||||||
|
end,
|
||||||
|
enumerate_auths = function()
|
||||||
|
conn:query(enumerate_auths_query)
|
||||||
|
local res = conn:store_result()
|
||||||
|
return function()
|
||||||
|
local row = res:fetch('n')
|
||||||
|
if not row then
|
||||||
|
return nil
|
||||||
|
end
|
||||||
|
local username, password, privs_str, lastlogin = unpack(row)
|
||||||
|
return username, {
|
||||||
|
password = password,
|
||||||
|
privileges = minetest.string_to_privs(privs_str),
|
||||||
|
last_login = tonumber(lastlogin)
|
||||||
|
}
|
||||||
|
end
|
||||||
|
end
|
||||||
|
}
|
||||||
|
end
|
||||||
|
|
||||||
|
minetest.register_authentication_handler(thismod.auth_handler)
|
||||||
|
minetest.log('action', modname .. ": Registered auth handler")
|
||||||
|
|
||||||
|
mysql_base.register_on_shutdown(function()
|
||||||
|
thismod.get_auth_stmt:free_result()
|
||||||
|
end)
|
||||||
Loading…
x
Reference in New Issue
Block a user