Fix bug 1131 where session data invalid after updating logged in user

1 files changed, 20 insertions, 4 deletions

diff --git a/lib/authenticator.lua b/lib/authenticator.lua
index 8a16d07..db4d3f7 100644
--- a/lib/authenticator.lua
+++ b/lib/authenticator.lua
@@ -109,6 +109,25 @@ local mksalt = function()
 	return "$6$"..str.."$"
 end
 
+local duplicatestructure
+duplicatestructure = function(value, saved)
+	saved = saved or {}
+	if type(value) == "table" then
+		if saved[value] then
+			return saved[value]
+		else
+			local output = {}
+			saved[value] = output
+			for k,v in pairs(value) do
+				output[k] = duplicatestructure(v, saved)
+			end
+			return output
+		end
+	else
+		return value
+	end
+end
+
 --- public methods
 
 -- This function returns true or false, and
@@ -168,10 +187,7 @@ write_userinfo = function(self, userinfo)
 	get_id(self, id.userid)
 
 	if success and self.sessiondata and self.sessiondata.userinfo and self.sessiondata.userinfo.userid == id.userid then
-		self.sessiondata.userinfo = {}
-		for name,value in pairs(id) do
-			self.sessiondata.userinfo[name] = value
-		end
+		self.sessiondata.userinfo = duplicatestructure(id)
 	end
 
 	return success