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220 lines
7.2 KiB
220 lines
7.2 KiB
// Copyright 2019 HAProxy Technologies
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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package handlers
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import (
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"bufio"
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"github.com/go-openapi/runtime"
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"github.com/go-openapi/runtime/middleware"
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client_native "github.com/haproxytech/client-native/v6"
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models "github.com/haproxytech/client-native/v6/models"
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"github.com/haproxytech/dataplaneapi/haproxy"
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"github.com/haproxytech/dataplaneapi/misc"
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"github.com/haproxytech/dataplaneapi/operations/storage"
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)
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// StorageCreateStorageGeneralFileHandlerImpl implementation of the StorageCreateStorageGeneralFileHandler interface using client-native client
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type StorageCreateStorageGeneralFileHandlerImpl struct {
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Client client_native.HAProxyClient
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}
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func (h *StorageCreateStorageGeneralFileHandlerImpl) Handle(params storage.CreateStorageGeneralFileParams, principal interface{}) middleware.Responder {
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file, ok := params.FileUpload.(*runtime.File)
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if !ok {
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return storage.NewCreateStorageGeneralFileBadRequest()
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}
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gs, err := h.Client.GeneralStorage()
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if err != nil {
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e := misc.HandleError(err)
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return storage.NewCreateStorageGeneralFileDefault(int(*e.Code)).WithPayload(e)
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}
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filename, size, _, err := gs.Create(file.Header.Filename, params.FileUpload)
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if err != nil {
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status := misc.GetHTTPStatusFromErr(err)
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return storage.NewCreateStorageGeneralFileDefault(status).WithPayload(misc.SetError(status, err.Error()))
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}
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me := &models.GeneralFile{
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Description: "managed general use file",
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File: filename,
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StorageName: filepath.Base(filename),
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Size: &size,
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}
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return storage.NewCreateStorageGeneralFileCreated().WithPayload(me)
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}
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// StorageGetAllStorageGeneralFilesHandlerImpl implementation of the StorageGetAllStorageGeneralFilesHandler interface
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type StorageGetAllStorageGeneralFilesHandlerImpl struct {
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Client client_native.HAProxyClient
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}
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// Handle executing the request and returning a response
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func (h *StorageGetAllStorageGeneralFilesHandlerImpl) Handle(params storage.GetAllStorageGeneralFilesParams, principal interface{}) middleware.Responder {
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gs, err := h.Client.GeneralStorage()
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if err != nil {
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e := misc.HandleError(err)
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return storage.NewGetAllStorageGeneralFilesDefault(int(*e.Code)).WithPayload(e)
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}
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filenames, err := gs.GetAll()
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if err != nil {
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e := misc.HandleError(err)
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return storage.NewGetAllStorageGeneralFilesDefault(int(*e.Code)).WithPayload(e)
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}
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retFiles := models.GeneralFiles{}
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for _, f := range filenames {
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retFiles = append(retFiles, &models.GeneralFile{
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Description: "managed general use file",
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File: f,
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ID: "",
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StorageName: filepath.Base(f),
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})
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}
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return storage.NewGetAllStorageGeneralFilesOK().WithPayload(retFiles)
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}
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// StorageGetOneStorageGeneralFileHandlerImpl implementation of the StorageGetOneStorageGeneralFileHandler interface
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type StorageGetOneStorageGeneralFileHandlerImpl struct {
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Client client_native.HAProxyClient
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}
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func (h *StorageGetOneStorageGeneralFileHandlerImpl) Handle(params storage.GetOneStorageGeneralFileParams, principal interface{}) middleware.Responder {
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gs, err := h.Client.GeneralStorage()
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if err != nil {
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e := misc.HandleError(err)
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return storage.NewGetOneStorageGeneralFileDefault(int(*e.Code)).WithPayload(e)
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}
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filename, _, err := gs.Get(params.Name)
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if err != nil {
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e := misc.HandleError(err)
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return storage.NewGetOneStorageGeneralFileDefault(int(*e.Code)).WithPayload(e)
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}
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if filename == "" {
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return storage.NewGetOneStorageGeneralFileNotFound()
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}
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f, err := os.Open(filename)
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if err != nil {
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e := misc.HandleError(err)
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return storage.NewGetOneStorageGeneralFileDefault(int(*e.Code)).WithPayload(e)
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}
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return storage.NewGetOneStorageGeneralFileOK().WithPayload(f)
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}
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// StorageDeleteStorageGeneralFileHandlerImpl implementation of the StorageDeleteStorageGeneralFileHandler interface
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type StorageDeleteStorageGeneralFileHandlerImpl struct {
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Client client_native.HAProxyClient
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}
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func (h *StorageDeleteStorageGeneralFileHandlerImpl) Handle(params storage.DeleteStorageGeneralFileParams, principal interface{}) middleware.Responder {
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configuration, err := h.Client.Configuration()
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if err != nil {
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e := misc.HandleError(err)
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return storage.NewCreateStorageGeneralFileDefault(int(*e.Code)).WithPayload(e)
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}
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gs, err := h.Client.GeneralStorage()
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if err != nil {
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e := misc.HandleError(err)
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return storage.NewCreateStorageGeneralFileDefault(int(*e.Code)).WithPayload(e)
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}
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runningConf := strings.NewReader(configuration.Parser().String())
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filename, _, err := gs.Get(params.Name)
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if err != nil {
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e := misc.HandleError(err)
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return storage.NewDeleteStorageGeneralFileDefault(int(*e.Code)).WithPayload(e)
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}
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// this is far from perfect but should provide a basic level of protection
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scanner := bufio.NewScanner(runningConf)
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lineNr := 0
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for scanner.Scan() {
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line := strings.TrimSpace(scanner.Text())
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if strings.Contains(line, filename) && !strings.HasPrefix(line, "#") {
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errCode := misc.ErrHTTPConflict
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errMsg := fmt.Sprintf("rejecting attempt to delete file %s referenced in haproxy conf at line %d: %s", filename, lineNr-1, line)
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e := &models.Error{Code: &errCode, Message: &errMsg}
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return storage.NewDeleteStorageGeneralFileDefault(int(*e.Code)).WithPayload(e)
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}
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lineNr++
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}
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err = gs.Delete(params.Name)
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if err != nil {
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e := misc.HandleError(err)
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return storage.NewDeleteStorageGeneralFileDefault(int(*e.Code)).WithPayload(e)
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}
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return storage.NewDeleteStorageGeneralFileNoContent()
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}
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// StorageReplaceStorageGeneralFileHandlerImpl implementation of the StorageReplaceStorageGeneralFileHandler interface
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type StorageReplaceStorageGeneralFileHandlerImpl struct {
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Client client_native.HAProxyClient
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ReloadAgent haproxy.IReloadAgent
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}
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func (h *StorageReplaceStorageGeneralFileHandlerImpl) Handle(params storage.ReplaceStorageGeneralFileParams, principal interface{}) middleware.Responder {
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gs, err := h.Client.GeneralStorage()
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if err != nil {
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e := misc.HandleError(err)
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return storage.NewReplaceStorageGeneralFileDefault(int(*e.Code)).WithPayload(e)
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}
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_, err = gs.Replace(params.Name, params.Data)
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if err != nil {
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e := misc.HandleError(err)
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return storage.NewReplaceStorageGeneralFileDefault(int(*e.Code)).WithPayload(e)
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}
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skipReload := false
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if params.SkipReload != nil {
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skipReload = *params.SkipReload
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}
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forceReload := false
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if params.ForceReload != nil {
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forceReload = *params.ForceReload
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}
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if skipReload {
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return storage.NewReplaceStorageGeneralFileNoContent()
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}
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if forceReload {
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err := h.ReloadAgent.ForceReload()
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if err != nil {
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e := misc.HandleError(err)
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return storage.NewReplaceStorageGeneralFileDefault(int(*e.Code)).WithPayload(e)
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}
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return storage.NewReplaceStorageGeneralFileNoContent()
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}
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rID := h.ReloadAgent.Reload()
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return storage.NewReplaceStorageGeneralFileAccepted().WithReloadID(rID)
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}
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