Return network error when logging in and the network connection fails (#3432)

api/errors.go

@@ -29,7 +29,7 @@ import (
 
 var (
 	ErrDefault                          = errors.New("an error occurred, please try again")
-	ErrInvalidLogin                     = errors.New("invalid Login")
+	ErrInvalidLogin                     = errors.New("invalid login")
 	ErrForbidden                        = errors.New("403 Forbidden")
 	ErrBadRequest                       = errors.New("400 Bad Request")
 	ErrFileTooLarge                     = errors.New("413 File too Large")
@@ -73,6 +73,7 @@ var (
 	ErrPolicyNotFound                   = errors.New("policy does not exist")
 	ErrLoginNotAllowed                  = errors.New("login not allowed")
 	ErrHealthReportFail                 = errors.New("failure to generate Health report")
+	ErrNetworkError                     = errors.New("unable to login due to network error")
 )
 
 type CodedAPIError struct {
@@ -111,6 +112,11 @@ func ErrorWithContext(ctx context.Context, err ...interface{}) *CodedAPIError {
 				errorCode = 401
 				errorMessage = ErrInvalidLogin.Error()
 			}
+			if errors.Is(err1, ErrNetworkError) {
+				detailedMessage = ""
+				errorCode = 503
+				errorMessage = ErrNetworkError.Error()
+			}
 			if strings.Contains(strings.ToLower(err1.Error()), ErrAccessDenied.Error()) {
 				errorCode = 403
 				errorMessage = err1.Error()

api/user_login.go

@@ -20,8 +20,11 @@ import (
 	"context"
 	"encoding/base64"
 	"encoding/json"
+	stderrors "errors"
 	"fmt"
+	"net"
 	"net/http"
+	"net/url"
 	"strings"
 
 	"github.com/go-openapi/errors"
@@ -142,7 +145,6 @@ func getLoginResponse(params authApi.LoginParams) (*models.LoginResponse, *Coded
 		if credsVerificate.SessionToken == "" || credsVerificate.SecretAccessKey == "" || credsVerificate.AccessKeyID == "" {
 			return nil, ErrorWithContext(ctx, errors.New(401, "Invalid STS Params"))
 		}
-
 	} else {
 		clientIP := getClientIP(params.HTTPRequest)
 		// prepare console credentials
@@ -158,6 +160,12 @@ func getLoginResponse(params authApi.LoginParams) (*models.LoginResponse, *Coded
 	}
 	sessionID, err := login(consoleCreds, sf)
 	if err != nil {
+		var urlErr *url.Error
+		if stderrors.As(err, &urlErr) {
+			if _, isNetErr := urlErr.Err.(net.Error); isNetErr {
+				return nil, ErrorWithContext(ctx, ErrNetworkError)
+			}
+		}
 		return nil, ErrorWithContext(ctx, err, ErrInvalidLogin)
 	}
 	// serialize output