1 files changed, 21 insertions, 0 deletions
diff --git a/app/backends/probe.py b/app/backends/probe.py
index 64dc7ab..818aadb 100644
--- a/app/backends/probe.py
+++ b/app/backends/probe.py
@@ -142,6 +142,27 @@ def same_endpoint(url_a: str, url_b: str) -> bool:
     return host_a == host_b and port_a == port_b
 
 
+def detect_remote_url(remote_url: str, local_url: str, identity: str,
+                      name: str, managed: bool = False) -> tuple:
+    """The shared backend "is something answering at the remote URL?" check.
+
+    Returns ``(running, {name: url})``. An empty URL disables the check; a
+    remote URL equal to the configured local endpoint is ignored while
+    MANAGED (that server was started by this tool and is already reported
+    as "[local]"); otherwise the URL must answer HTTP as IDENTITY to count.
+    The faster and audio.cpp backends use it verbatim; qwen's is
+    model-aware and keeps its own variant.
+    """
+    url = (remote_url or "").strip()
+    if not url:
+        return False, {}
+    if managed and same_endpoint(url, local_url):
+        return False, {}
+    if identify_server(url) == identity:
+        return True, {name: url}
+    return False, {}
+
+
 def health_payload(url: str, timeout: float = DEFAULT_TIMEOUT) -> Optional[dict]:
     """Return the server's ``/health`` JSON document, or None.