1 files changed, 66 insertions, 0 deletions
diff --git a/weed/s3api/s3_sse_c_range_test.go b/weed/s3api/s3_sse_c_range_test.go
new file mode 100644
index 000000000..318771d8c
--- /dev/null
+++ b/weed/s3api/s3_sse_c_range_test.go
@@ -0,0 +1,66 @@
+package s3api
+
+import (
+	"bytes"
+	"crypto/md5"
+	"encoding/base64"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/gorilla/mux"
+	"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
+)
+
+// ResponseRecorder that also implements http.Flusher
+type recorderFlusher struct{ *httptest.ResponseRecorder }
+
+func (r recorderFlusher) Flush() {}
+
+// TestSSECRangeRequestsSupported verifies that HTTP Range requests are now supported
+// for SSE-C encrypted objects since the IV is stored in metadata and CTR mode allows seeking
+func TestSSECRangeRequestsSupported(t *testing.T) {
+	// Create a request with Range header and valid SSE-C headers
+	req := httptest.NewRequest(http.MethodGet, "/b/o", nil)
+	req.Header.Set("Range", "bytes=10-20")
+	req.Header.Set(s3_constants.AmzServerSideEncryptionCustomerAlgorithm, "AES256")
+
+	key := make([]byte, 32)
+	for i := range key {
+		key[i] = byte(i)
+	}
+	s := md5.Sum(key)
+	keyMD5 := base64.StdEncoding.EncodeToString(s[:])
+
+	req.Header.Set(s3_constants.AmzServerSideEncryptionCustomerKey, base64.StdEncoding.EncodeToString(key))
+	req.Header.Set(s3_constants.AmzServerSideEncryptionCustomerKeyMD5, keyMD5)
+
+	// Attach mux vars to avoid panic in error writer
+	req = mux.SetURLVars(req, map[string]string{"bucket": "b", "object": "o"})
+
+	// Create a mock HTTP response that simulates SSE-C encrypted object metadata
+	proxyResponse := &http.Response{
+		StatusCode: 200,
+		Header:     make(http.Header),
+		Body:       io.NopCloser(bytes.NewReader([]byte("mock encrypted data"))),
+	}
+	proxyResponse.Header.Set(s3_constants.AmzServerSideEncryptionCustomerAlgorithm, "AES256")
+	proxyResponse.Header.Set(s3_constants.AmzServerSideEncryptionCustomerKeyMD5, keyMD5)
+
+	// Call the function under test - should no longer reject range requests
+	s3a := &S3ApiServer{
+		option: &S3ApiServerOption{
+			BucketsPath: "/buckets",
+		},
+	}
+	rec := httptest.NewRecorder()
+	w := recorderFlusher{rec}
+	statusCode, _ := s3a.handleSSECResponse(req, proxyResponse, w)
+
+	// Range requests should now be allowed to proceed (will be handled by filer layer)
+	// The exact status code depends on the object existence and filer response
+	if statusCode == http.StatusRequestedRangeNotSatisfiable {
+		t.Fatalf("Range requests should no longer be rejected for SSE-C objects, got status %d", statusCode)
+	}
+}