From 4a98bed62c99281843bbc280dfb35b4a804f8031 Mon Sep 17 00:00:00 2001
From: rubenwardy <rw@rubenwardy.com>
Date: Sat, 19 Jan 2019 23:43:19 +0000
Subject: [PATCH] Check for empty passwords

---
 init.lua | 43 +++++++++++++++++++++++++++++++++++++------
 1 file changed, 37 insertions(+), 6 deletions(-)

diff --git a/init.lua b/init.lua
index 363e8d3..54faf8a 100644
--- a/init.lua
+++ b/init.lua
@@ -32,7 +32,7 @@ local items = {
 	"            Gael-de-Sailly, Shara, Calinou",
 	"",
 	"Though the server owner will not actively read private messages or disclose",
-	"their content outside the mod team, random checks will be done to make sure", 
+	"their content outside the mod team, random checks will be done to make sure",
 	"they are not being abused and they will be reviewed if abuse or inappropriate",
 	"behaviour is suspected. ",
 	"",
@@ -59,13 +59,24 @@ local function can_grant_interact(player)
 	return not minetest.check_player_privs(name, { interact = true }) and not minetest.check_player_privs(name, { fly = true })
 end
 
+local function has_password(pname)
+	local handler = minetest.get_auth_handler()
+	local auth = handler.get_auth(pname)
+	return auth and not minetest.check_password_entry(pname, auth.password, "")
+end
+
 function rules.show(player)
+	local pname = player:get_player_name()
 	local fs = "size[8,7]bgcolor[#080808BB;true]" ..
 			default.gui_bg ..
 			default.gui_bg_img ..
 			"textlist[0.1,0.1;7.8,6.3;msg;" .. rules.txt .. ";-1;true]"
 
-	if not can_grant_interact(player) then
+	if not has_password(pname) then
+		fs = fs .. "box[4,6.5;3.1,0.7;#900]"
+		fs = fs .. "label[4.2,6.6;Please set a password]"
+		fs = fs .. "button_exit[0.5,6;3.5,2;yes;Okay]"
+	elseif not can_grant_interact(player) then
 		fs = fs .. "button_exit[0.5,6;7,2;yes;Okay]"
 	else
 		local yes = minetest.formspec_escape("Yes, let me play!")
@@ -75,7 +86,7 @@ function rules.show(player)
 		fs = fs .. "button_exit[4,6;3.5,2;yes;" .. yes .. "]"
 	end
 
-	minetest.show_formspec(player:get_player_name(), "rules:rules", fs)
+	minetest.show_formspec(pname, "rules:rules", fs)
 end
 
 minetest.register_chatcommand("rules", {
@@ -96,13 +107,34 @@ minetest.register_chatcommand("rules", {
 })
 
 minetest.register_on_joinplayer(function(player)
-	local privs = minetest.get_player_privs(player:get_player_name())
+	local pname = player:get_player_name()
+
+	local privs = minetest.get_player_privs(pname)
 	if privs.interact and privs.fly then
 		privs.interact = false
 		minetest.set_player_privs(player:get_player_name(), privs)
 	end
 
-	if can_grant_interact(player) then
+	if not has_password(pname) then
+		local privs = minetest.get_player_privs(pname)
+		privs.shout = false
+		privs.interact = false
+		privs.kick = false
+		privs.ban = false
+		minetest.set_player_privs(pname, privs)
+
+		minetest.show_formspec(pname, "rules:pwd", [[
+				size[8,3]
+				no_prepends[]
+				bgcolor[#600]
+				label[0.2,0.2;Please set a password]
+				button_exit[0.5,2;7,2;yes;Okay]
+				textarea[0.2,1;7.9,2;;;]] ..
+					minetest.formspec_escape("Press escape or the back button. " ..
+					"Select 'change password'.\n" ..
+					"When done, type /rules.\n" ..
+					"You will not be able to obtain interact until you get this."))
+	elseif can_grant_interact(player) then
 		rules.show(player)
 	end
 end)
@@ -135,4 +167,3 @@ minetest.register_on_player_receive_fields(function(player, form, fields)
 
 	return true
 end)
-