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-rw-r--r--lib/authenticator-plaintext.lua2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/authenticator-plaintext.lua b/lib/authenticator-plaintext.lua
index 6c4cbbd..613eaab 100644
--- a/lib/authenticator-plaintext.lua
+++ b/lib/authenticator-plaintext.lua
@@ -88,6 +88,8 @@ local validate_settings = function (self, userid, username, password, password_c
-- Set errormessages when entering invalid values
if (#userid == 0) then errormessage.userid = "You need to enter a valid userid!" end
+ if string.find(userid, "[^%w_]") then errormessage.userid = "Userid can only contain letters, numbers, and '_'" end
+ if string.find(username, "%p") then errormessage.username = "Real name cannot contain punctuation" end
if password then
if (#password == 0) then
errormessage.password = "Password cannot be blank!"