chore: linter: usestdlibvars

Signed-off-by: Jakob Borg <jakob@kastelo.net>

lib/api/api.go

@@ -546,7 +546,7 @@ func corsMiddleware(next http.Handler, allowFrameLoading bool) http.Handler {
 	// See https://www.w3.org/TR/cors/ for details.
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		// Process OPTIONS requests
-		if r.Method == "OPTIONS" {
+		if r.Method == http.MethodOptions {
 			// Add a generous access-control-allow-origin header for CORS requests
 			w.Header().Add("Access-Control-Allow-Origin", "*")
 			// Only GET/POST/OPTIONS Methods are supported
@@ -557,7 +557,7 @@ func corsMiddleware(next http.Handler, allowFrameLoading bool) http.Handler {
 			w.Header().Set("Access-Control-Max-Age", "600")
 
 			// Indicate that no content will be returned
-			w.WriteHeader(204)
+			w.WriteHeader(http.StatusNoContent)
 
 			return
 		}

lib/rc/rc.go

@@ -173,7 +173,7 @@ func (p *Process) Get(path string) ([]byte, error) {
 	}
 
 	url := fmt.Sprintf("http://%s%s", p.addr, path)
-	req, err := http.NewRequest("GET", url, nil)
+	req, err := http.NewRequest(http.MethodGet, url, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -198,7 +198,7 @@ func (p *Process) Post(path string, data io.Reader) ([]byte, error) {
 		},
 	}
 	url := fmt.Sprintf("http://%s%s", p.addr, path)
-	req, err := http.NewRequest("POST", url, data)
+	req, err := http.NewRequest(http.MethodPost, url, data)
 	if err != nil {
 		return nil, err
 	}
@@ -397,7 +397,7 @@ func (*Process) readResponse(resp *http.Response) ([]byte, error) {
 	if err != nil {
 		return bs, err
 	}
-	if resp.StatusCode != 200 {
+	if resp.StatusCode != http.StatusOK {
 		return bs, errors.New(resp.Status)
 	}
 	return bs, nil

lib/relay/client/dynamic.go

@@ -48,7 +48,7 @@ func (c *dynamicClient) serve(ctx context.Context) error {
 
 	l.Debugln(c, "looking up dynamic relays")
 
-	req, err := http.NewRequestWithContext(ctx, "GET", uri.String(), nil)
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, uri.String(), nil)
 	if err != nil {
 		l.Debugln(c, "failed to lookup dynamic relays", err)
 		return err

lib/upgrade/upgrade_supported.go

@@ -222,7 +222,7 @@ func upgradeToURL(archiveName, binary string, url string) error {
 func readRelease(archiveName, dir, url string) (string, error) {
 	l.Debugf("loading %q", url)
 
-	req, err := http.NewRequest("GET", url, nil)
+	req, err := http.NewRequest(http.MethodGet, url, nil)
 	if err != nil {
 		return "", err
 	}

lib/upnp/upnp.go

@@ -578,7 +578,7 @@ func soapRequestWithIP(ctx context.Context, url, service, function, message stri
 
 	body := fmt.Sprintf(template, message)
 
-	req, err := http.NewRequestWithContext(ctx, "POST", url, strings.NewReader(body))
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, strings.NewReader(body))
 	if err != nil {
 		return resp, err
 	}

lib/ur/usage_report.go

@@ -366,7 +366,7 @@ func (s *Service) sendUsageReport(ctx context.Context) error {
 			},
 		},
 	}
-	req, err := http.NewRequestWithContext(ctx, "POST", s.cfg.Options().URURL, &b)
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, s.cfg.Options().URURL, &b)
 	if err != nil {
 		return err
 	}