294 lines
10 KiB
Go
294 lines
10 KiB
Go
//
|
|
// Copyright 2019 AT&T Intellectual Property
|
|
// Copyright 2019 Nokia
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// This source code is part of the near-RT RIC (RAN Intelligent Controller)
|
|
// platform project (RICP).
|
|
|
|
package controllers
|
|
|
|
import (
|
|
"e2mgr/e2managererrors"
|
|
"e2mgr/logger"
|
|
"e2mgr/models"
|
|
"e2mgr/providers/httpmsghandlerprovider"
|
|
"encoding/json"
|
|
"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
|
|
"github.com/golang/protobuf/jsonpb"
|
|
"github.com/golang/protobuf/proto"
|
|
"github.com/gorilla/mux"
|
|
"io"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"net/http/httputil"
|
|
"strings"
|
|
)
|
|
|
|
const (
|
|
ParamRanName = "ranName"
|
|
LimitRequest = 2000
|
|
)
|
|
|
|
type INodebController interface {
|
|
Shutdown(writer http.ResponseWriter, r *http.Request)
|
|
X2Reset(writer http.ResponseWriter, r *http.Request)
|
|
X2Setup(writer http.ResponseWriter, r *http.Request)
|
|
EndcSetup(writer http.ResponseWriter, r *http.Request)
|
|
GetNodeb(writer http.ResponseWriter, r *http.Request)
|
|
UpdateGnb(writer http.ResponseWriter, r *http.Request)
|
|
GetNodebIdList(writer http.ResponseWriter, r *http.Request)
|
|
}
|
|
|
|
type NodebController struct {
|
|
logger *logger.Logger
|
|
handlerProvider *httpmsghandlerprovider.IncomingRequestHandlerProvider
|
|
}
|
|
|
|
func NewNodebController(logger *logger.Logger, handlerProvider *httpmsghandlerprovider.IncomingRequestHandlerProvider) *NodebController {
|
|
return &NodebController{
|
|
logger: logger,
|
|
handlerProvider: handlerProvider,
|
|
}
|
|
}
|
|
|
|
func (c *NodebController) GetNodebIdList(writer http.ResponseWriter, r *http.Request) {
|
|
c.logger.Infof("[Client -> E2 Manager] #NodebController.GetNodebIdList - request: %v", c.prettifyRequest(r))
|
|
|
|
c.handleRequest(writer, &r.Header, httpmsghandlerprovider.GetNodebIdListRequest, nil, false)
|
|
}
|
|
|
|
func (c *NodebController) GetNodeb(writer http.ResponseWriter, r *http.Request) {
|
|
c.logger.Infof("[Client -> E2 Manager] #NodebController.GetNodeb - request: %v", c.prettifyRequest(r))
|
|
vars := mux.Vars(r)
|
|
ranName := vars["ranName"]
|
|
request := models.GetNodebRequest{RanName: ranName}
|
|
c.handleRequest(writer, &r.Header, httpmsghandlerprovider.GetNodebRequest, request, false)
|
|
}
|
|
|
|
func (c *NodebController) UpdateGnb(writer http.ResponseWriter, r *http.Request) {
|
|
c.logger.Infof("[Client -> E2 Manager] #NodebController.UpdateGnb - request: %v", c.prettifyRequest(r))
|
|
vars := mux.Vars(r)
|
|
ranName := vars[ParamRanName]
|
|
|
|
request := models.UpdateGnbRequest{}
|
|
|
|
gnb := entities.Gnb{}
|
|
|
|
if !c.extractRequestBodyToProto(r, &gnb, writer) {
|
|
return
|
|
}
|
|
|
|
request.Gnb = &gnb;
|
|
request.RanName = ranName
|
|
c.handleRequest(writer, &r.Header, httpmsghandlerprovider.UpdateGnbRequest, request, true)
|
|
}
|
|
|
|
func (c *NodebController) Shutdown(writer http.ResponseWriter, r *http.Request) {
|
|
c.logger.Infof("[Client -> E2 Manager] #NodebController.Shutdown - request: %v", c.prettifyRequest(r))
|
|
c.handleRequest(writer, &r.Header, httpmsghandlerprovider.ShutdownRequest, nil, false)
|
|
}
|
|
|
|
func (c *NodebController) X2Reset(writer http.ResponseWriter, r *http.Request) {
|
|
c.logger.Infof("[Client -> E2 Manager] #NodebController.X2Reset - request: %v", c.prettifyRequest(r))
|
|
request := models.ResetRequest{}
|
|
vars := mux.Vars(r)
|
|
ranName := vars[ParamRanName]
|
|
|
|
if r.ContentLength > 0 && !c.extractJsonBody(r, &request, writer) {
|
|
return
|
|
}
|
|
request.RanName = ranName
|
|
c.handleRequest(writer, &r.Header, httpmsghandlerprovider.ResetRequest, request, false)
|
|
}
|
|
|
|
func (c *NodebController) X2Setup(writer http.ResponseWriter, r *http.Request) {
|
|
c.logger.Infof("[Client -> E2 Manager] #NodebController.X2Setup - request: %v", c.prettifyRequest(r))
|
|
|
|
request := models.SetupRequest{}
|
|
|
|
if !c.extractJsonBody(r, &request, writer) {
|
|
return
|
|
}
|
|
|
|
c.handleRequest(writer, &r.Header, httpmsghandlerprovider.X2SetupRequest, request, true)
|
|
}
|
|
|
|
func (c *NodebController) EndcSetup(writer http.ResponseWriter, r *http.Request) {
|
|
c.logger.Infof("[Client -> E2 Manager] #NodebController.EndcSetup - request: %v", c.prettifyRequest(r))
|
|
|
|
request := models.SetupRequest{}
|
|
|
|
if !c.extractJsonBody(r, &request, writer) {
|
|
return
|
|
}
|
|
|
|
c.handleRequest(writer, &r.Header, httpmsghandlerprovider.EndcSetupRequest, request, true)
|
|
}
|
|
|
|
func (c *NodebController) extractRequestBodyToProto(r *http.Request, pb proto.Message , writer http.ResponseWriter) bool {
|
|
defer r.Body.Close()
|
|
|
|
err := jsonpb.Unmarshal(r.Body, pb)
|
|
|
|
if err != nil {
|
|
c.logger.Errorf("[Client -> E2 Manager] #NodebController.extractJsonBody - unable to extract json body - error: %s", err)
|
|
c.handleErrorResponse(e2managererrors.NewInvalidJsonError(), writer)
|
|
return false
|
|
}
|
|
|
|
return true
|
|
}
|
|
|
|
func (c *NodebController) extractJsonBody(r *http.Request, request models.Request, writer http.ResponseWriter) bool {
|
|
defer r.Body.Close()
|
|
body, err := ioutil.ReadAll(io.LimitReader(r.Body, LimitRequest))
|
|
|
|
if err != nil {
|
|
c.logger.Errorf("[Client -> E2 Manager] #NodebController.extractJsonBody - unable to extract json body - error: %s", err)
|
|
c.handleErrorResponse(e2managererrors.NewInvalidJsonError(), writer)
|
|
return false
|
|
}
|
|
|
|
err = json.Unmarshal(body, &request)
|
|
if err != nil {
|
|
c.logger.Errorf("[Client -> E2 Manager] #NodebController.extractJsonBody - unable to extract json body - error: %s", err)
|
|
c.handleErrorResponse(e2managererrors.NewInvalidJsonError(), writer)
|
|
return false
|
|
}
|
|
|
|
return true
|
|
}
|
|
|
|
func (c *NodebController) handleRequest(writer http.ResponseWriter, header *http.Header, requestName httpmsghandlerprovider.IncomingRequest, request models.Request, validateRequestHeaders bool) {
|
|
|
|
if validateRequestHeaders {
|
|
|
|
err := c.validateRequestHeader(header)
|
|
if err != nil {
|
|
c.handleErrorResponse(err, writer)
|
|
return
|
|
}
|
|
}
|
|
|
|
handler, err := c.handlerProvider.GetHandler(requestName)
|
|
|
|
if err != nil {
|
|
c.handleErrorResponse(err, writer)
|
|
return
|
|
}
|
|
|
|
response, err := handler.Handle(request)
|
|
|
|
if err != nil {
|
|
c.handleErrorResponse(err, writer)
|
|
return
|
|
}
|
|
|
|
if response == nil {
|
|
writer.WriteHeader(http.StatusNoContent)
|
|
c.logger.Infof("[E2 Manager -> Client] #NodebController.handleRequest - status response: %v", http.StatusNoContent)
|
|
return
|
|
}
|
|
|
|
result, err := response.Marshal()
|
|
|
|
if err != nil {
|
|
c.handleErrorResponse(err, writer)
|
|
return
|
|
}
|
|
|
|
c.logger.Infof("[E2 Manager -> Client] #NodebController.handleRequest - response: %s", result)
|
|
writer.Header().Set("Content-Type", "application/json")
|
|
writer.Write(result)
|
|
}
|
|
|
|
func (c *NodebController) validateRequestHeader(header *http.Header) error {
|
|
|
|
if header.Get("Content-Type") != "application/json" {
|
|
c.logger.Errorf("#NodebController.validateRequestHeader - validation failure, incorrect content type")
|
|
|
|
return e2managererrors.NewHeaderValidationError()
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (c *NodebController) handleErrorResponse(err error, writer http.ResponseWriter) {
|
|
|
|
var errorResponseDetails models.ErrorResponse
|
|
var httpError int
|
|
|
|
if err != nil {
|
|
switch err.(type) {
|
|
case *e2managererrors.RnibDbError:
|
|
e2Error, _ := err.(*e2managererrors.RnibDbError)
|
|
errorResponseDetails = models.ErrorResponse{Code: e2Error.Code, Message: e2Error.Message}
|
|
httpError = http.StatusInternalServerError
|
|
case *e2managererrors.CommandAlreadyInProgressError:
|
|
e2Error, _ := err.(*e2managererrors.CommandAlreadyInProgressError)
|
|
errorResponseDetails = models.ErrorResponse{Code: e2Error.Code, Message: e2Error.Message}
|
|
httpError = http.StatusMethodNotAllowed
|
|
case *e2managererrors.HeaderValidationError:
|
|
e2Error, _ := err.(*e2managererrors.HeaderValidationError)
|
|
errorResponseDetails = models.ErrorResponse{Code: e2Error.Code, Message: e2Error.Message}
|
|
httpError = http.StatusUnsupportedMediaType
|
|
case *e2managererrors.WrongStateError:
|
|
e2Error, _ := err.(*e2managererrors.WrongStateError)
|
|
errorResponseDetails = models.ErrorResponse{Code: e2Error.Code, Message: e2Error.Message}
|
|
httpError = http.StatusBadRequest
|
|
case *e2managererrors.RequestValidationError:
|
|
e2Error, _ := err.(*e2managererrors.RequestValidationError)
|
|
errorResponseDetails = models.ErrorResponse{Code: e2Error.Code, Message: e2Error.Message}
|
|
httpError = http.StatusBadRequest
|
|
case *e2managererrors.InvalidJsonError:
|
|
e2Error, _ := err.(*e2managererrors.InvalidJsonError)
|
|
errorResponseDetails = models.ErrorResponse{Code: e2Error.Code, Message: e2Error.Message}
|
|
httpError = http.StatusBadRequest
|
|
case *e2managererrors.RmrError:
|
|
e2Error, _ := err.(*e2managererrors.RmrError)
|
|
errorResponseDetails = models.ErrorResponse{Code: e2Error.Code, Message: e2Error.Message}
|
|
httpError = http.StatusInternalServerError
|
|
case *e2managererrors.ResourceNotFoundError:
|
|
e2Error, _ := err.(*e2managererrors.ResourceNotFoundError)
|
|
errorResponseDetails = models.ErrorResponse{Code: e2Error.Code, Message: e2Error.Message}
|
|
httpError = http.StatusNotFound
|
|
case *e2managererrors.E2TInstanceAbsenceError:
|
|
e2Error, _ := err.(*e2managererrors.E2TInstanceAbsenceError)
|
|
errorResponseDetails = models.ErrorResponse{Code: e2Error.Code, Message: e2Error.Message}
|
|
httpError = http.StatusServiceUnavailable
|
|
case *e2managererrors.RoutingManagerError:
|
|
e2Error, _ := err.(*e2managererrors.RoutingManagerError)
|
|
errorResponseDetails = models.ErrorResponse{Code: e2Error.Code, Message: e2Error.Message}
|
|
httpError = http.StatusServiceUnavailable
|
|
default:
|
|
e2Error := e2managererrors.NewInternalError()
|
|
errorResponseDetails = models.ErrorResponse{Code: e2Error.Code, Message: e2Error.Message}
|
|
httpError = http.StatusInternalServerError
|
|
}
|
|
}
|
|
errorResponse, _ := json.Marshal(errorResponseDetails)
|
|
|
|
c.logger.Errorf("[E2 Manager -> Client] #NodebController.handleErrorResponse - http status: %d, error response: %+v", httpError, errorResponseDetails)
|
|
|
|
writer.Header().Set("Content-Type", "application/json")
|
|
writer.WriteHeader(httpError)
|
|
_, err = writer.Write(errorResponse)
|
|
}
|
|
|
|
func (c *NodebController) prettifyRequest(request *http.Request) string {
|
|
dump, _ := httputil.DumpRequest(request, true)
|
|
requestPrettyPrint := strings.Replace(string(dump), "\r\n", " ", -1)
|
|
return strings.Replace(requestPrettyPrint, "\n", "", -1)
|
|
}
|