--- a/src/luan/host/main.luan	Tue Feb 06 22:04:47 2018 -0700
+++ b/src/luan/host/main.luan	Wed Feb 07 17:36:38 2018 -0700
@@ -1,7 +1,7 @@
 java()
 local Luan = require "luan:Luan.luan"
 local error = Luan.error
-local assert_string = Luan.assert_string or error()
+local type = Luan.type or error()
 local ipairs = Luan.ipairs or error()
 local try = Luan.try or error()
 local Io = require "luan:Io.luan"
@@ -43,8 +43,8 @@
 local fns = Rpc.functions
 
 local function get_dir(domain,password)
-	assert_string(domain)
-	assert_string(password)
+	type(domain)=="string" or error()
+	type(password)=="string" or error()
 	domain = lower(domain)
 	local dir = sites_dir.child(domain)
 	if dir.exists() then
@@ -96,8 +96,8 @@
 end
 
 function fns.create(domain,password)
-	assert_string(domain)
-	assert_string(password)
+	type(domain)=="string" or error()
+	type(password)=="string" or error()
 	domain = lower(domain)
 	local dir = sites_dir.child(domain)
 	dir.exists() and error "already exists"
@@ -155,7 +155,7 @@
 end
 
 function fns.exists(domain)
-	assert_string(domain)
+	type(domain)=="string" or error()
 	domain = lower(domain)
 	return sites_dir.child(domain).exists()
 end
@@ -164,7 +164,7 @@
 	local old_dir = get_dir(old_domain,password)
 	old_dir or error "domain not found"
 	old_dir = old_dir.parent()
-	assert_string(new_domain)
+	type(new_domain)=="string" or error()
 	new_domain = lower(new_domain)
 	local new_dir = sites_dir.child(new_domain)
 	new_dir.exists() and error "new_domain already exists"