[irc_commands] Revert back to upstream

- Strip irc token system
 - Use new authentication API

irc_commands/init.lua

@@ -1,7 +1,5 @@
 
 local irc_users = {}
-local irc_tokens = {}
-local tokens_file = minetest.get_worldpath() .. "/irc_tokens"
 
 local old_chat_send_player = minetest.chat_send_player
 minetest.chat_send_player = function(name, message)
@@ -13,94 +11,6 @@ minetest.chat_send_player = function(name, message)
 	return old_chat_send_player(name, message)
 end
 
--- Load/Save tokens
-local function load_tokens()
-	local f = io.open(tokens_file, "r")
-	local tokens = {}
-	if f then
-		tokens = minetest.deserialize(f:read())
-		f:close()
-	end
-	return tokens
-end
-irc_tokens = load_tokens()
-
-local function save_tokens()
-	local f = io.open(tokens_file, "w")
-	if f then
-		f:write(minetest.serialize(irc_tokens))
-		f:close()
-		return true
-	else
-		minetest.log("error", "[IRC_Commands] Tokens storage file couldn't be created!")
-		return false
-	end
-end
-
-local function generate_token(name)
-	local passtr = ""
-	for i = 1, math.random(20,40) do
-		passtr = passtr .. tostring(math.random(1,65535))
-	end
-	return minetest.get_password_hash(name, passtr)
-end
-
--- Note: You can and **should** regulary regenerate tokens
-minetest.register_chatcommand("gen_token", {
-	description = "Generate irc token to log in",
-	privs = {shout = true},
-	func = function(name, param)
-		if not minetest.get_player_by_name(name) then
-			return false, "You need to be logged in to the server to generate tokens"
-		end
-		local h = ""
-		if irc_tokens[name] then
-			h = " new"
-		end
-		irc_tokens[name] = generate_token(name)
-		minetest.chat_send_player(name, "Here is you" .. h .. " token : " .. irc_tokens[name])
-		save_tokens()
-
-		-- Disconnect any user using this login
-		for nick, loggedInAs in pairs(irc_users) do
-			if loggedInAs == name then
-				minetest.log("action", nick.."@IRC has been logged out from "
-					..irc_users[nick] .. " (token regenerated)")
-				irc_users[nick] = nil
-				irc:say(nick, "Token regenerated. You are now logged off.")
-			end
-		end
-		return true
-	end
-})
-
-minetest.register_chatcommand("del_token", {
-	description = "Delete your entry in the token register",
-	privs = {shout = true},
-	func = function(name)
-		if not minetest.get_player_by_name(name) then
-			return false, "You need to be logged in to the server to generate tokens"
-		end
-		if not irc_tokens[name] then
-			return true, "You had no entry in the tokens' register"
-		else
-			irc_tokens[name] = nil
-			save_tokens()
-			-- Disconnect any user using this login
-			for nick, loggedInAs in pairs(irc_users) do
-				if loggedInAs == name then
-					minetest.log("action", nick.."@IRC has been logged out from "
-						..irc_users[nick] .. " (token regenerated)")
-					irc_users[nick] = nil
-					irc:say(nick, "Token regenerated. You are now logged off.")
-				end
-			end
-			return true, "Access for you using a token has been removed. Use /gen_token to create" ..
-				" a new token at any time"
-		end
-	end
-})
-
 irc:register_hook("NickChange", function(user, newNick)
 	for nick, player in pairs(irc_users) do
 		if nick == user.nick then
@@ -122,44 +32,24 @@ irc:register_hook("OnQuit", function(user, reason)
 	irc_users[user.nick] = nil
 end)
 
-
--- Since `minetest.get_password_hash` is broken by the new SRP auth mechanism
--- We will still allow to use login, but with tokens, and fall back to old hashs
--- If 1° we can use them and 2° a token is generated
-
-function checkToken(playerName, token, usernick)
-	if irc_tokens[playerName] and
-		irc_tokens[playerName] == token then
-		minetest.log("action", "User " .. usernick
-			.." from IRC logs in as " .. playerName .. " using their token")
-		irc_users[usernick] = playerName
-		return true, "You are now logged in as " .. playerName
-	else
-		minetest.log("action", usernick.."@IRC attempted to log in as "
-			..playerName.." unsuccessfully using a token")
-		if irc_tokens[playerName] then
-			return false, "Invalid token for player " .. playerName .. "."
-		else
-			return false, "No token generated by that player."
-		end
-
-	end
-end
-
 irc:register_bot_command("login", {
-	params = "<username> <password or token>",
+	params = "<username> <password>",
 	description = "Login as a user to run commands",
 	func = function(user, args)
 		if args == "" then
-			return false, "You need a username and password/token."
+			return false, "You need a username and password."
 		end
 		local playerName, password = args:match("^(%S+)%s(%S+)$")
 		if not playerName then
-			return false, "Player name and password/token required."
+			return false, "Player name and password required."
 		end
 		local inChannel = false
-		local users = irc.conn.channels[irc.config.channel].users
-		for cnick, cuser in pairs(users) do
+		local channel = irc.conn.channels[irc.config.channel]
+		if not channel then
+			return false, "The server needs to be in its "..
+				"channel for anyone to log in."
+		end
+		for cnick, cuser in pairs(channel.users) do
 			if user.nick == cnick then
 				inChannel = true
 				break
@@ -168,8 +58,19 @@ irc:register_bot_command("login", {
 		if not inChannel then
 			return false, "You need to be in the server's channel to log in."
 		end
-
-		return checkToken(playerName, password, user.nick)
+		local handler = minetest.get_auth_handler()
+		local auth = handler.get_auth(playerName)
+		if auth and minetest.check_password_entry(playerName, auth.password, password) then
+			minetest.log("action", "User "..user.nick
+					.." from IRC logs in as "..playerName)
+			irc_users[user.nick] = playerName
+			handler.record_login(playerName)
+			return true, "You are now logged in as "..playerName
+		else
+			minetest.log("action", user.nick.."@IRC attempted to log in as "
+				..playerName.." unsuccessfully")
+			return false, "Incorrect password or player does not exist."
+		end
 	end
 })