[pve-devel] [PATCH manager 1/2] ui: storage oci pull: optimize reference regex

[Filip Schauer]

Simplify the regex used to match an OCI registry reference and avoid
catastrophic backtracking in cases such as:
"registry.fedoraproject.org/fedora:"

Signed-off-by: Filip Schauer <f.schauer at proxmox.com>
---
 www/manager6/storage/TemplateView.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/www/manager6/storage/TemplateView.js b/www/manager6/storage/TemplateView.js
index 9f313a0c..71a68b88 100644
--- a/www/manager6/storage/TemplateView.js
+++ b/www/manager6/storage/TemplateView.js
@@ -218,11 +218,11 @@ Ext.define('PVE.storage.OciRegistryPull', {
 
         parseReference: function (value) {
             const re =
-                /^((?:(?:[a-zA-Z\d]|[a-zA-Z\d][a-zA-Z\d-]*[a-zA-Z\d])(?:\.(?:[a-zA-Z\d]|[a-zA-Z\d][a-zA-Z\d-]*[a-zA-Z\d]))*(?::\d+)?\/)?[a-z\d]+(?:(?:[._]|__|[-]*)[a-z\d]+)*(?:\/[a-z\d]+(?:(?:[._]|__|[-]*)[a-z\d]+)*)*)(:(\w[\w.-]{0,127}))?$/;
+                /^((?:[a-zA-Z\d](?:[a-zA-Z\d-]*[a-zA-Z\d])?(?:\.(?:[a-zA-Z\d](?:[a-zA-Z\d-]*[a-zA-Z\d])?))*(?::\d+)?\/)?[a-z\d]+(?:(?:[._]|__|-+)[a-z\d]+)*(?:\/[a-z\d]+(?:(?:[._]|__|-+)[a-z\d]+)*)*)(?::(\w[\w.-]{0,127}))?$/;
             let matches = value.match(re);
             if (matches) {
                 let ref = matches[1];
-                let tag = matches[3];
+                let tag = matches[2];
                 return [ref, tag];
             }
             return undefined;
-- 
2.47.3