fix: guard against a nil resp (#267)

wolf31o2 · web-flow · commit c985ba3ea568 · 2024-10-30T11:02:15.000-04:00
Signed-off-by: Chris Gianelloni &lt;wolf31o2@blinklabs.io&gt;
diff --git a/input/chainsync/chainsync.go b/input/chainsync/chainsync.go
@@ -450,6 +450,9 @@ func getKupoClient(c *ChainSync) (*kugo.Client, error) {
 	if err != nil {
 		return nil, fmt.Errorf("failed to perform health check: %w", err)
 	}
+	if resp == nil {
+		return nil, fmt.Errorf("health check response empty, aborting")
+	}
 	defer resp.Body.Close()
 
 	if resp.StatusCode != http.StatusOK {

Original file line number	Diff line number	Diff line change
`@@ -450,6 +450,9 @@ func getKupoClient(c ChainSync) (kugo.Client, error) {`
`450`	`450`	`if err != nil {`
`451`	`451`	`return nil, fmt.Errorf("failed to perform health check: %w", err)`
`452`	`452`	`}`
	`453`	`+ if resp == nil {`
	`454`	`+ return nil, fmt.Errorf("health check response empty, aborting")`
	`455`	`+ }`
`453`	`456`	`defer resp.Body.Close()`
`454`	`457`
`455`	`458`	`if resp.StatusCode != http.StatusOK {`