Authenticate with nil body in v4 (#6)

* make sure body is nil in v4 request

* changelog and version bump

CHANGELOG.md

@@ -1,3 +1,7 @@
+# 0.11.1
+
+- Fixed bug with request body during v4 authentication.
+
 # 0.11.0
 
 - Added support for Conjur v5.

VERSION

@@ -1 +1 @@
-0.11.0
+0.11.1

requests.go

@@ -37,15 +37,18 @@ func AuthenticateRequest(authnURL string, conjurVersion string, account string,
 		authenticateURL = fmt.Sprintf("%s/%s/%s/authenticate", authnURL, account, url.QueryEscape(username))
 	}
 
-	var body *bytes.Reader
-
+	infoLogger.Printf("making authn request to %s", authenticateURL)
+
+	var req *http.Request
+	var err error
+
 	if conjurVersion == "5" {
-		body = bytes.NewReader(cert)
+		body := bytes.NewReader(cert)
+		req, err = http.NewRequest("POST", authenticateURL, body)
+	} else {
+		req, err = http.NewRequest("POST", authenticateURL, nil)
 	}
-
-	infoLogger.Printf("making authn request to %s", authenticateURL)
 
-	req, err := http.NewRequest("POST", authenticateURL, body)
 	if err != nil {
 		return nil, err
 	}