Client: improve host regex

1 files changed, 4 insertions, 1 deletions

diff --git a/client/src/app/shared/forms/form-validators/host.validator.ts b/client/src/app/shared/forms/form-validators/host.validator.ts
index 9cb46d361..ea3e43cb1 100644
--- a/client/src/app/shared/forms/form-validators/host.validator.ts
+++ b/client/src/app/shared/forms/form-validators/host.validator.ts
@@ -1,7 +1,10 @@
 import { FormControl } from '@angular/forms';
 
 export function validateHost(c: FormControl) {
-  let HOST_REGEXP = new RegExp('^(www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)$');
+  // Thanks to http://stackoverflow.com/a/106223
+  let HOST_REGEXP = new RegExp(
+    '^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])$'
+  );
 
   return HOST_REGEXP.test(c.value) ? null : {
     validateHost: {