From c37c7fb933cce3ae2cf082643bcb79d382fdca56 Mon Sep 17 00:00:00 2001
From: Frank Klaassen <639906+syphernl@users.noreply.github.com>
Date: Wed, 11 Mar 2026 15:40:21 +0100
Subject: [PATCH] fix: prevent 2-letter folder names from being misidentified
 as locale codes

getPagePath() used a regex to extract locale prefixes from file paths, but
any top-level folder with a 2-letter name (e.g. AI/, CI/) or 2+2-letter
hyphenated name (e.g. CI-CD/) matched the BCP 47 locale pattern, causing
the extracted non-existent locale to violate the pages_localecode_foreign
FK constraint on insert.

Now validates the extracted locale against the configured locales
(WIKI.config.lang.code + WIKI.config.lang.namespaces) before accepting it.
---
 server/helpers/page.js | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/server/helpers/page.js b/server/helpers/page.js
index 8bea0aa3b..652012c2e 100644
--- a/server/helpers/page.js
+++ b/server/helpers/page.js
@@ -143,9 +143,16 @@ module.exports = {
     }
     const result = localeFolderRegex.exec(meta.path)
     if (result[1]) {
-      meta = {
-        locale: result[1].replace('/', ''),
-        path: result[2]
+      const extractedLocale = result[1].replace('/', '')
+      const knownLocales = new Set([
+        WIKI.config.lang.code,
+        ...(WIKI.config.lang.namespaces || [])
+      ])
+      if (knownLocales.has(extractedLocale)) {
+        meta = {
+          locale: extractedLocale,
+          path: result[2]
+        }
       }
     }
     return meta