set user-agent header for success notification webhooks

deliver.go

@@ -48,9 +48,12 @@ type discordDeliveryConfig struct {
 	logFileName       string
 }
 
-const ntfyTimeout = 10 * time.Second
-const discordTimeout = 10 * time.Second
-const mailTimeout = 10 * time.Second
+const (
+	successNotifyTimeout = 10 * time.Second
+	ntfyTimeout          = 10 * time.Second
+	discordTimeout       = 10 * time.Second
+	mailTimeout          = 10 * time.Second
+)
 
 func executeDeliveries(config *deliveryConfig, runOutput *runOutput) []error {
 	var deliveryErrors []error
@@ -168,6 +171,25 @@ func executeDiscordDelivery(cfg *discordDeliveryConfig, runOutput *runOutput) er
 	return nil
 }
 
+func deliverSuccessNotification(url string) error {
+	client := http.DefaultClient
+	client.Timeout = successNotifyTimeout
+	req, err := http.NewRequest(http.MethodGet, url, nil)
+	if err != nil {
+		return fmt.Errorf("failed to build GET request for '%s': %w", url, err)
+	}
+	req.Header.Set("User-Agent", productIdentifier())
+	resp, err := client.Do(req)
+	if err != nil {
+		return fmt.Errorf("failed to GET '%s': %w", url, err)
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode > 200 || resp.StatusCode < 299 {
+		return fmt.Errorf("failed to GET '%s' (%s)", url, resp.Status)
+	}
+	return nil
+}
+
 func extendErrSlice(errs []error, err error) []error {
 	if err != nil {
 		errs = append(errs, err)

main.go

@@ -4,7 +4,6 @@ import (
 	"flag"
 	"fmt"
 	"log"
-	"net/http"
 	"net/url"
 	"os"
 	"os/user"
@@ -64,8 +63,6 @@ const (
 	CensorEnvVarsEnvVar = "RUNNER_CENSOR_ENV"
 )
 
-const successNotifyTimeout = 10 * time.Second
-
 func usage() {
 	_, _ = fmt.Fprintf(os.Stderr, "Usage: %s [OPTIONS] -- /path/to/program --program-args\n", filepath.Base(os.Args[0]))
 	_, _ = fmt.Fprintf(os.Stderr, "Run the given program, only printing its output if the program exits with an error, "+
@@ -438,16 +435,8 @@ func main() {
 	}
 
 	if runOut.succeeded && *successNotifyURL != "" {
-		client := http.DefaultClient
-		client.Timeout = successNotifyTimeout
-		resp, err := client.Get(*successNotifyURL)
-		if err != nil {
-			deliveryErrs = append(deliveryErrs, fmt.Errorf("failed to GET success notification URL '%s': %w", *successNotifyURL, err))
-		} else {
-			defer resp.Body.Close()
-			if resp.StatusCode > 200 || resp.StatusCode < 299 {
-				deliveryErrs = append(deliveryErrs, fmt.Errorf("failed to GET success notification URL '%s' (%s)", *successNotifyURL, resp.Status))
-			}
+		if err := deliverSuccessNotification(*successNotifyURL); err != nil {
+			deliveryErrs = append(deliveryErrs, fmt.Errorf("failed to call success notification URL: %w", err))
 		}
 	}