URL to initiate SAML authentication flow (#6813)

Co-authored-by: Peer Richelsen <peeroke@gmail.com>

apps/web/pages/auth/sso/direct.tsx

@@ -0,0 +1,38 @@
+import { signIn } from "next-auth/react";
+import { useRouter } from "next/router";
+
+import { samlProductID, samlTenantID } from "@calcom/features/ee/sso/lib/saml";
+import { HOSTED_CAL_FEATURES } from "@calcom/lib/constants";
+
+import type { inferSSRProps } from "@lib/types/inferSSRProps";
+
+// This page is used to initiate the SAML authentication flow by redirecting to the SAML provider.
+// Accessible only on self-hosted Cal.com instances.
+export default function Page({ samlTenantID, samlProductID }: inferSSRProps<typeof getServerSideProps>) {
+  const router = useRouter();
+
+  if (HOSTED_CAL_FEATURES) {
+    router.push("/auth/login");
+    return;
+  }
+
+  // Initiate SAML authentication flow
+  signIn(
+    "saml",
+    {
+      callbackUrl: "/",
+    },
+    { tenant: samlTenantID, product: samlProductID }
+  );
+
+  return null;
+}
+
+export async function getServerSideProps() {
+  return {
+    props: {
+      samlTenantID,
+      samlProductID,
+    },
+  };
+}