updated authentication for welsh url

pages/auth/signin2.js

@@ -219,16 +219,38 @@ export async function getServerSideProps(context) {
     const csrfToken = await getCsrfToken(context);
     console.log(
         "\n//////////////////////\n",
-        "Sign in callbackurl: " + context.query.callbackUrl,
+        "Sign in callbackurl: " + context.req.headers.host,
         context.locale,
         csrfToken + "\n//////////////////////\n"
     );
-    let formURL = context.query.callbackUrl;
-    //console.log("formUrl:", formURL);
+    let formURL = context.req.headers.host;
+    console.log("formUrl:", formURL);
 
     formURL = typeof formURL == "undefined" ? null : formURL;
+
+    let protocol = "http";
+    if (context.req.headers["x-forwarded-proto"]) {
+        protocol = context.req.headers["x-forwarded-proto"];
+    }
+    // Otherwise, check if the connection is encrypted (for https)
+    else if (context.req.connection.encrypted) {
+        protocol = "https";
+    }
+
+    formURL = protocol + "://" + formURL;
+
+    console.log("Protocol:", protocol);
+    console.log("locale:", context.locale);
+
+    const url = new URL(formURL); // base URL
+
+    const params = new URLSearchParams(url.search);
+    params.append("locale", context.locale);
+
+    url.search = params.toString();
+
     return {
-        props: { csrfToken: csrfToken, callbackUrl: formURL },
+        props: { csrfToken: csrfToken, callbackUrl: url.toString() },
     };
 }