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lichang
269
features/nbi/nbi.go
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269
features/nbi/nbi.go
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@@ -0,0 +1,269 @@
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package nbi
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import (
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"bytes"
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"fmt"
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"net/http"
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"strings"
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"ems.agt/lib/dborm"
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"github.com/go-resty/resty/v2"
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"github.com/gorilla/mux"
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"ems.agt/lib/global"
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"ems.agt/lib/log"
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"ems.agt/lib/oauth"
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"ems.agt/lib/services"
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"ems.agt/lib/session"
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"ems.agt/restagent/config"
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)
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type ErrorOAuthResponse struct {
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Error map[string]interface{}
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}
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type FailOAuthResponse struct {
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Error struct {
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ErrorCode string
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ErrorInfo string
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}
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}
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type ApiResponse struct {
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ResultCode string
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ResultMessage interface{}
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}
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var globalSession = session.NewSessManager("restagent")
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var (
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MAX_RMUID_NUM int
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MAX_ALARMID_NUM int
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MAX_PMUID_NUM int
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MAX_SUBID_NUM int
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MAX_URI_LEN int
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RMUID_REGEXP string
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)
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var (
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// Northbound interface
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GetNRMUri = config.UriPrefix + "/resourceManagement/{apiVersion}/elementType/{elementTypeValue}/objectType/{objectTypeValue}"
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NorthboundGetAlarmUri = config.UriPrefix + "/faultManagement/{apiVersion}/alarms" // ?alarmIds={alarmIdValues}
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)
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func CheckParameterName(r *http.Request) []string {
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var errorParams []string
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vars := r.URL.Query()
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for k, v := range vars {
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log.Debug("vars:", k, v)
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if k != "rmUIDs" && k != "fields" {
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errorParams = append(errorParams, k)
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}
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}
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return errorParams
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}
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func GetRmUIDArr(r *http.Request) []string {
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vars := r.URL.Query()
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rmUIDs, ok := vars["rmUIDs"]
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if !ok {
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log.Debug("rmUIDs is not exist")
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return nil
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}
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var rmUIDValues []string
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for _, r := range rmUIDs {
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if r != "" {
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rmUIDValues = global.MergeStringArr(rmUIDValues, strings.Split(r, `,`))
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}
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}
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return rmUIDValues
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}
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func GetAttrNameArr(r *http.Request) []string {
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vars := r.URL.Query()
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fields, ok := vars["fields"]
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if !ok {
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log.Debug("attributeNames does not exist")
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return nil
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}
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var attrNames []string
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for _, a := range fields {
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if a != "" {
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attrNames = global.MergeStringArr(attrNames, strings.Split(a, `,`))
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}
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}
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return attrNames
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}
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func CheckValidRmUID(rmUIDs []string) []string {
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log.Debug("CheckValidRmUID processing... ")
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var invalidRmUIDs []string
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for _, r := range rmUIDs {
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if !global.MatchRmUID(RMUID_REGEXP, r) {
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invalidRmUIDs = append(invalidRmUIDs, r)
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}
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}
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return invalidRmUIDs
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}
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func CheckLocalRmUID(rmUIDs []string) string {
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log.Debug("GetLocalRmUID processing... ")
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rmUID := config.GetRmUIDFromConfig()
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for _, r := range rmUIDs {
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if r == rmUID {
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return rmUID
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}
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}
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return ""
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}
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func NBIGetNRMFromNF(w http.ResponseWriter, r *http.Request) {
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log.Debug("NorthGetNRMFromNF processing... ")
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// response 414-4 uri too long ? (optional)
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// todo ... ?
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if bytes.Count([]byte(r.RequestURI), nil) > config.GetUriMaxLenFromConfig() {
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log.Error("Request Uri too long:", bytes.Count([]byte(r.RequestURI), nil), config.GetUriMaxLenFromConfig())
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services.ResponseRequestURITooLong414UriTooLong(w)
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return
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}
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// check media type(content type) only support "application/json"
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// response 415-1
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if !services.IsVallidContentType(r, config.GetYamlConfig().OMC.CheckContentType) {
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log.Debug("Invalid Content-Type")
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services.ResponseUnsupportedMediaType415(w)
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return
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}
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// error processing ...
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// 401-1 response
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token, ret := oauth.IsCarriedToken(r)
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if ret == false {
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log.Error("AccessToken is not carried")
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services.ResponseUnauthorized401AccessTokenNotCarried(w)
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return
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}
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// 401-2 response
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if dborm.XormExistValidToken(token, config.GetExpiresFromConfig()) == false {
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log.Error("AccessToken fails or does not exist")
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services.ResponseUnauthorized401AccessTokenNotExist(w)
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return
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}
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_, err := dborm.XormUpdateSessionShakeTime(token)
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if err != nil {
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log.Error("Failed to update session table:", err)
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services.ResponseUnauthorized401AccessTokenNotExist(w)
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return
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}
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/*
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// response 403 Forbidden, permissions deny
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// todo...
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plist := globalSession.GetPermissionFromSession(token)
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log.Debug("permission list:", plist)
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if len(plist) == 0 || plist[0] == false {
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log.Debug("User permission deny")
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services.ResponseForbidden403NotPermission(w)
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return
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}
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*/
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vars := mux.Vars(r)
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neType := vars["elementTypeValue"]
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apiVer := vars["apiVersion"]
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if apiVer != "v1" {
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log.Error("Uri is invalid")
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services.ResponseNotFound404UriNotExist(w, r)
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return
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}
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// response 406-1
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rmUIDValues := GetRmUIDArr(r)
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if rmUIDValues == nil {
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log.Error("missing parameter: rmUIDs")
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services.ResponseNotAcceptable406MissingParam(w)
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return
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}
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// response 406-2
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errorParams := CheckParameterName(r)
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if errorParams != nil {
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log.Error("parameter name error: ", errorParams)
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services.ResponseNotAcceptable406ParamError(w, errorParams)
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return
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}
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// response 400-5
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if len(rmUIDValues) == 0 {
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log.Error("rmUIDs is wrong or NULL")
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services.ResponseBadRequest400WrongParamValue(w)
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return
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}
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// response 414-1
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if len(rmUIDValues) > config.GetYamlConfig().Params.RmUIDMaxNum {
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log.Error("rmUID greater than", config.GetYamlConfig().Params.RmUIDMaxNum)
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services.ResponseRequestURITooLong414NRMNumExceed(w, config.GetYamlConfig().Params.RmUIDMaxNum)
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return
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}
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/*
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// response 400-1
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// check rmUID is valid
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// todo ...
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invalidRmUIDs := CheckValidRmUID(rmUIDValues)
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if len(invalidRmUIDs) != 0 {
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log.Debug("rmUID is invalid")
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services.ResponseBadRequest400RmUIDsIsInvalid(w, invalidRmUIDs)
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return
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}
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*/
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var response *resty.Response
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// respMsg := make(map[string]interface{})
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for _, rmUID := range rmUIDValues {
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neInfo, err := dborm.XormGetNeInfoByRmUID(neType, rmUID)
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if err != nil {
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log.Error("dborm.XormGetNeInfo is failed:", err)
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services.ResponseInternalServerError500DatabaseOperationFailed(w)
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return
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}
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requestURI2NF := fmt.Sprintf("http://%s:%v%s", neInfo.Ip, neInfo.Port, r.RequestURI)
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log.Debug("requestURI2NF: GET ", requestURI2NF)
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client := resty.New()
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response, err = client.R().
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EnableTrace().
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SetHeaders(map[string]string{"User-Agent": config.GetDefaultUserAgent()}).
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SetHeaders(map[string]string{"Content-Type": "application/json;charset=UTF-8"}).
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Get(requestURI2NF)
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if err != nil {
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log.Error("Failed to Get from NF:", err)
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services.ResponseInternalServerError500NFConnectRefused(w)
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return
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}
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/*
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switch response.StatusCode() {
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case http.StatusOK, http.StatusAccepted, http.StatusNoContent, http.StatusCreated:
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respMsg["data"] = response
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default:
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if response != nil {
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services.TransportResponse(w, response.StatusCode(), response.Body())
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}
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}
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*/
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}
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services.TransportResponse(w, response.StatusCode(), response.Body())
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}
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