From e277f7d1c12dc90d3a4ec63b7c6b88613fa56f5c Mon Sep 17 00:00:00 2001
From: tomuta <tomut@yahoo.com>
Date: Sun, 26 Jan 2020 13:34:56 -0700
Subject: [PATCH] Fix change email when no whitelist is configured

Fixes issue #792
---
 src/config.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/config.rs b/src/config.rs
index a3dde70c..f1913225 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -510,7 +510,12 @@ impl Config {
             warn!("Failed to parse email address '{}'", email);
             return false;
         }
-        self.signups_domains_whitelist().split(',').any(|d| d == e[0])
+        
+        // Allow signups if the whitelist is empty/not configured
+        // (it doesn't contain any domains), or if it matches at least
+        // one domain.
+        let whitelist_str = self.signups_domains_whitelist();
+        whitelist_str.is_empty() || whitelist_str.split(',').filter(|s| !s.is_empty()).any(|d| d == e[0])
     }
 
     pub fn delete_user_config(&self) -> Result<(), Error> {