chore: update username matcher

api/v1/auth.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"net/http"
 	"regexp"
+	"strings"
 	"time"
 
 	"github.com/labstack/echo/v4"
@@ -283,7 +284,7 @@ func (s *APIV1Service) SignUp(c echo.Context) error {
 	if err != nil {
 		return echo.NewHTTPError(http.StatusBadRequest, "Failed to find users").SetInternal(err)
 	}
-	if !usernameMatcher.MatchString(signup.Username) {
+	if !usernameMatcher.MatchString(strings.ToLower(signup.Username)) {
 		return echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("Invalid username %s", signup.Username)).SetInternal(err)
 	}
 

api/v1/user.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
+	"strings"
 	"time"
 
 	"github.com/labstack/echo/v4"
@@ -140,7 +141,7 @@ func (s *APIV1Service) CreateUser(c echo.Context) error {
 	if err := userCreate.Validate(); err != nil {
 		return echo.NewHTTPError(http.StatusBadRequest, "Invalid user create format").SetInternal(err)
 	}
-	if !usernameMatcher.MatchString(userCreate.Username) {
+	if !usernameMatcher.MatchString(strings.ToLower(userCreate.Username)) {
 		return echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("Invalid username %s", userCreate.Username)).SetInternal(err)
 	}
 	// Disallow host user to be created.
@@ -365,7 +366,7 @@ func (s *APIV1Service) UpdateUser(c echo.Context) error {
 		userUpdate.RowStatus = &rowStatus
 	}
 	if request.Username != nil {
-		if !usernameMatcher.MatchString(*request.Username) {
+		if !usernameMatcher.MatchString(strings.ToLower(*request.Username)) {
 			return echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("Invalid username %s", *request.Username)).SetInternal(err)
 		}
 		userUpdate.Username = request.Username

api/v2/user_service.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"net/http"
 	"regexp"
+	"strings"
 	"time"
 
 	"github.com/golang-jwt/jwt/v4"
@@ -77,7 +78,7 @@ func (s *UserService) UpdateUser(ctx context.Context, request *apiv2pb.UpdateUse
 	}
 	for _, path := range request.UpdateMask {
 		if path == "username" {
-			if !usernameMatcher.MatchString(request.User.Username) {
+			if !usernameMatcher.MatchString(strings.ToLower(request.User.Username)) {
 				return nil, status.Errorf(codes.InvalidArgument, "invalid username: %s", request.User.Username)
 			}
 			update.Username = &request.User.Username