From a14e65d1b9fdcac09f9bf77ec095ccd0618b89f2 Mon Sep 17 00:00:00 2001
From: Charlie Marsh <crmarsh416@gmail.com>
Date: Sat, 17 Feb 2024 01:53:04 -0500
Subject: [PATCH] Propagate unsupported error when server returns 200 (#5)

---
 src/lib.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index a1699e3..2919d92 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -475,6 +475,14 @@ async fn run_streamer(
                 Ok(response) => response,
             };
 
+            // If the server returns a successful, but non-206 response (e.g., 200), then it
+            // doesn't support range requests (even if the `Accept-Ranges` header is set).
+            if response.status() != reqwest::StatusCode::PARTIAL_CONTENT {
+                state.error = Some(AsyncHttpRangeReaderError::HttpRangeRequestUnsupported);
+                let _ = state_tx.send(state);
+                break 'outer;
+            }
+
             if !stream_response(
                 response,
                 *range.start(),