Update HTTP status codes to modern codes (#18063)

* 2xx/3xx/4xx/5xx -> http.Status...
* http.StatusFound -> http.StatusTemporaryRedirect
* http.StatusMovedPermanently -> http.StatusPermanentRedirect

modules/context/api.go

@@ -214,7 +214,7 @@ func (ctx *APIContext) RequireCSRF() {
 	if len(headerToken) > 0 || len(formValueToken) > 0 {
 		Validate(ctx.Context, ctx.csrf)
 	} else {
-		ctx.Context.Error(401, "Missing CSRF token.")
+		ctx.Context.Error(http.StatusUnauthorized, "Missing CSRF token.")
 	}
 }
 
@@ -239,7 +239,7 @@ func (ctx *APIContext) CheckForOTP() {
 		return
 	}
 	if !ok {
-		ctx.Context.Error(401)
+		ctx.Context.Error(http.StatusUnauthorized)
 		return
 	}
 }

modules/context/context.go

@@ -139,7 +139,7 @@ func RedirectToUser(ctx *Context, userName string, redirectUserID int64) {
 	if ctx.Req.URL.RawQuery != "" {
 		redirectPath += "?" + ctx.Req.URL.RawQuery
 	}
-	ctx.Redirect(path.Join(setting.AppSubURL, redirectPath))
+	ctx.Redirect(path.Join(setting.AppSubURL, redirectPath), http.StatusTemporaryRedirect)
 }
 
 // HasAPIError returns true if error occurs in form validation.
@@ -215,7 +215,7 @@ func (ctx *Context) HTML(status int, name base.TplName) {
 // RenderToString renders the template content to a string
 func (ctx *Context) RenderToString(name base.TplName, data map[string]interface{}) (string, error) {
 	var buf strings.Builder
-	err := ctx.Render.HTML(&buf, 200, string(name), data)
+	err := ctx.Render.HTML(&buf, http.StatusOK, string(name), data)
 	return buf.String(), err
 }
 
@@ -397,7 +397,7 @@ func (ctx *Context) JSON(status int, content interface{}) {
 
 // Redirect redirects the request
 func (ctx *Context) Redirect(location string, status ...int) {
-	code := http.StatusFound
+	code := http.StatusSeeOther
 	if len(status) == 1 {
 		code = status[0]
 	}

modules/context/repo.go

@@ -335,7 +335,7 @@ func RedirectToRepo(ctx *Context, redirectRepoID int64) {
 	if ctx.Req.URL.RawQuery != "" {
 		redirectPath += "?" + ctx.Req.URL.RawQuery
 	}
-	ctx.Redirect(path.Join(setting.AppSubURL, redirectPath))
+	ctx.Redirect(path.Join(setting.AppSubURL, redirectPath), http.StatusTemporaryRedirect)
 }
 
 func repoAssignment(ctx *Context, repo *repo_model.Repository) {

modules/lfs/http_client_test.go

@@ -81,7 +81,7 @@ func lfsTestRoundtripHandler(req *http.Request) *http.Response {
 			Objects: []*ObjectResponse{
 				{
 					Error: &ObjectError{
-						Code:    404,
+						Code:    http.StatusNotFound,
 						Message: "Object not found",
 					},
 				},

modules/private/restore_repo.go

@@ -45,7 +45,7 @@ func RestoreRepo(ctx context.Context, repoDir, ownerName, repoName string, units
 	}
 	defer resp.Body.Close()
 
-	if resp.StatusCode != 200 {
+	if resp.StatusCode != http.StatusOK {
 		ret := struct {
 			Err string `json:"err"`
 		}{}

modules/web/route_test.go

@@ -67,7 +67,7 @@ func TestRoute2(t *testing.T) {
 				route = 1
 			})
 		}, func(resp http.ResponseWriter, req *http.Request) {
-			resp.WriteHeader(200)
+			resp.WriteHeader(http.StatusOK)
 		})
 
 		r.Group("/issues/{index}", func() {