1
0
Files
omc_api/features/handle/handle.go
2024-03-18 15:22:47 +08:00

587 lines
14 KiB
Go

package handle
import (
"bytes"
"encoding/json"
"io"
"net/http"
"strconv"
"strings"
"be.ems/lib/dborm"
"github.com/gorilla/mux"
g "github.com/gosnmp/gosnmp"
"be.ems/lib/global"
"be.ems/lib/log"
"be.ems/lib/oauth"
"be.ems/lib/services"
"be.ems/lib/session"
"be.ems/restagent/config"
)
var TodoList []stTodo
type stTodo struct {
No string
Item string
Value string
}
type ErrorOAuthResponse struct {
Error map[string]interface{}
}
type FailOAuthResponse struct {
Error struct {
ErrorCode string
ErrorInfo string
}
}
type ApiResponse struct {
ResultCode string
ResultMessage interface{}
}
var globalSession = session.NewSessManager("restagent")
func init() {
conf := config.GetYamlConfig()
// Default is a pointer to a GoSNMP struct that contains sensible defaults
// eg port 161, community public, etc
g.Default.Target = conf.NE.Addr
g.Default.Port = conf.NE.Port
err := g.Default.Connect()
if err != nil {
log.Fatalf("Connect() err: %v", err)
}
//defer g.Default.Conn.Close()
}
/*
func IsValidOAuthInfo(oAuthBody OAuthBody) bool {
log.Debug("IsValidOAuthInfo processing... ")
conf := config.GetYamlConfig()
for _, o := range conf.Auth {
if oAuthBody.GrantType == o.Type && oAuthBody.UserName == o.User && oAuthBody.Value == o.Password {
return true
}
}
return false
}
func IsWrongOAuthInfo(oAuthBody OAuthBody) bool {
log.Debug("IsWrongOAuthInfo processing... ")
if oAuthBody.GrantType == "" || strings.ToLower(oAuthBody.GrantType) != "password" || oAuthBody.UserName == "" || oAuthBody.Value == "" {
return true
}
return false
}
*/
func IsValidOAuthUri(r *http.Request) bool {
vars := mux.Vars(r)
Uri := vars["apiCategory"] + "/" + vars["apiVersion"] // 获取Uri
if Uri != "securityManagement/v1" {
return false
}
return true
}
func IsVallidContentType(r *http.Request) bool {
log.Debug("IsVallidContentType processing ...")
ctype := r.Header["Content-Type"]
if len(ctype) != 0 && !strings.Contains(ctype[0], "application/json") {
return false
}
return true
}
func LoginFromOMC(w http.ResponseWriter, r *http.Request) {
log.Debug("LoginFromOMC processing... ")
body, err := io.ReadAll(io.LimitReader(r.Body, global.RequestBodyMaxLen)) //io.LimitReader限制大小
if err != nil {
log.Debug(err)
services.ResponseNotFound404UriNotExist(w, r)
return
}
// check media type(content type) only support "application/json"
/* if !IsVallidContentType(r) {
log.Debug("Invalid Content-Type")
services.ResponseUnsupportedMediaType415(w)
return
}
// check extend uri, response 404
if !IsValidOAuthUri(r) {
log.Debug("Uri is invalid")
services.ResponseNotFound404UriNotExist(w, r)
return
}
*/
// Error process ....
// response 400-7
if !json.Valid([]byte(body)) {
log.Debug("Invalid Json Format")
services.ResponseBadRequest400InvalidJson(w)
return
}
var oAuthBody oauth.OAuthBody
_ = json.Unmarshal(body, &oAuthBody) //转为json
log.Debug("body:", string(body), "oAuthBody:", oAuthBody)
defer r.Body.Close()
// response 400-5
if oauth.IsWrongOAuthInfo(oAuthBody) {
log.Debug("Wrong parameter value")
services.ResponseBadRequest400WrongParamValue(w)
return
}
/*
if oauth.IsValidOAuthInfo(oAuthBody) {
plist := config.GetPermissionFromConfig(oAuthBody.UserName, oAuthBody.GrantType)
log.Debug("Permission list:", plist)
token := globalSession.NewSession(w, r, plist)
services.ResponseStatusOK200Login(w, token)
} else {
// response 400-4
log.Debug("Authentication failed, mismatch user or password")
services.ResponseBadRequest400IncorrectLogin(w)
}
*/
validUser, changePassword, _ := dborm.XormCheckLoginUser(oAuthBody.UserName,
oAuthBody.Value, config.GetYamlConfig().Auth.Crypt)
if validUser {
// plist := config.GetPermissionFromConfig(oAuthBody.UserName, oAuthBody.GrantType)
plist := []bool{true, true, true, true}
log.Debug("Permission list:", plist)
token := globalSession.NewSession(w, r, plist)
services.ResponseStatusOK200Login(w, token, changePassword)
} else {
// response 400-4
log.Error("Authentication failed, mismatch user or password")
services.ResponseBadRequest400IncorrectLogin(w)
}
return
}
func LogoutFromOMC(w http.ResponseWriter, r *http.Request) {
log.Debug("LogoutFromOMC processing... ")
// check media type(content type) only support "application/json"
if !IsVallidContentType(r) {
log.Debug("Invalid Content-Type")
services.ResponseUnsupportedMediaType415(w)
return
}
// check extend uri, response 404
if !IsValidOAuthUri(r) {
log.Debug("Uri is invalid")
services.ResponseNotFound404UriNotExist(w, r)
return
}
// error processing ...
// 401-1 response
token, ret := globalSession.IsCarriedToken(r)
if ret == false {
log.Debug("AccessToken is not carried")
services.ResponseUnauthorized401AccessTokenNotCarried(w)
return
}
// 401-2 response
if globalSession.IsValidToken(token) == false {
log.Debug("AccessToken fails or does not exist")
services.ResponseUnauthorized401AccessTokenNotExist(w)
return
}
globalSession.EndSession(w, r)
services.ResponseStatusOK200Null(w)
return
}
func HandshakeFromOMC(w http.ResponseWriter, r *http.Request) {
log.Debug("HandshakeFromOMC processing... ")
// check media type(content type) only support "application/json"
if !IsVallidContentType(r) {
log.Debug("Invalid Content-Type")
services.ResponseUnsupportedMediaType415(w)
return
}
// check extend uri, response 404
if !IsValidOAuthUri(r) {
log.Debug("Uri is invalid")
services.ResponseNotFound404UriNotExist(w, r)
return
}
// error processing ...
// 401-1 response
token, ret := globalSession.IsCarriedToken(r)
if ret == false {
log.Debug("AccessToken is not carried")
services.ResponseUnauthorized401AccessTokenNotCarried(w)
return
}
if !globalSession.ShakeSession(token) {
// 401-2 response
log.Debug("AccessToken fails or does not exist")
services.ResponseUnauthorized401AccessTokenNotExist(w)
return
}
// 200 response
services.ResponseStatusOK200Null(w)
return
}
var (
MAX_RMUID_NUM = config.GetRmUIDMaxNumFromConfig()
MAX_ALARMID_NUM = config.GetAlarmIDMaxNumFromConfig()
MAX_PMUID_NUM = config.GetPmIDMaxNumFromConfig()
MAX_SUBID_NUM = config.GetSubIDMaxNumFromConfig()
MAX_URI_LEN = config.GetUriMaxLenFromConfig()
RMUID_REGEXP = config.GetRmUIDRegexpFromConfig()
)
func CheckParameterName(r *http.Request) []string {
var errorParams []string
vars := r.URL.Query()
for k, v := range vars {
log.Debug("vars:", k, v)
if k != "rmUIDs" && k != "fields" {
errorParams = append(errorParams, k)
}
}
return errorParams
}
func GetRmUIDArr(r *http.Request) []string {
vars := r.URL.Query()
rmUIDs, ok := vars["rmUIDs"]
if !ok {
log.Debug("rmUIDs is not exist")
return nil
}
var rmUIDValues []string
for _, r := range rmUIDs {
if r != "" {
rmUIDValues = global.MergeStringArr(rmUIDValues, strings.Split(r, `,`))
}
}
return rmUIDValues
}
func GetAttrNameArr(r *http.Request) []string {
vars := r.URL.Query()
fields, ok := vars["fields"]
if !ok {
log.Debug("attributeNames does not exist")
return nil
}
var attrNames []string
for _, a := range fields {
if a != "" {
attrNames = global.MergeStringArr(attrNames, strings.Split(a, `,`))
}
}
return attrNames
}
func CheckValidRmUID(rmUIDs []string) []string {
log.Debug("GetLocalRmUID processing... ")
var invalidRmUIDs []string
for _, r := range rmUIDs {
if !global.MatchRmUID(RMUID_REGEXP, r) {
invalidRmUIDs = append(invalidRmUIDs, r)
}
}
return invalidRmUIDs
}
func CheckLocalRmUID(rmUIDs []string) string {
log.Debug("GetLocalRmUID processing... ")
rmUID := config.GetRmUIDFromConfig()
for _, r := range rmUIDs {
if r == rmUID {
return rmUID
}
}
return ""
}
func GetNRMByUri(w http.ResponseWriter, r *http.Request) {
log.Debug("GetNRMByUri processing... ")
// response 414-4 uri too long ? (optional)
// todo ... ?
if bytes.Count([]byte(r.RequestURI), nil) > MAX_URI_LEN {
log.Debug("Request Uri too long:", bytes.Count([]byte(r.RequestURI), nil))
services.ResponseRequestURITooLong414UriTooLong(w)
return
}
// check media type(content type) only support "application/json"
// response 415-1
if !IsVallidContentType(r) {
log.Debug("Invalid Content-Type")
services.ResponseUnsupportedMediaType415(w)
return
}
// error processing ...
// 401-1 response
token, ret := globalSession.IsCarriedToken(r)
if ret == false {
log.Debug("AccessToken is not carried")
services.ResponseUnauthorized401AccessTokenNotCarried(w)
return
}
// 401-2 response
if globalSession.IsValidToken(token) == false {
log.Debug("AccessToken fails or does not exist")
services.ResponseUnauthorized401AccessTokenNotExist(w)
return
}
// response 403 Forbidden, permissions deny
// todo...
plist := globalSession.GetPermissionFromSession(token)
log.Debug("permission list:", plist)
if len(plist) == 0 || plist[0] == false {
log.Debug("User permission deny")
services.ResponseForbidden403NotPermission(w)
return
}
vars := mux.Vars(r)
qeuryUri := vars["apiCategory"] + "/" + vars["elementTypeValue"] + "/" + vars["objectTypeValue"]
log.Debug("Get by Uri: ", qeuryUri)
apiVer := vars["apiVersion"]
if apiVer != "v1" {
log.Debug("Uri is invalid")
services.ResponseNotFound404UriNotExist(w, r)
return
}
// response 406-1
rmUIDValues := GetRmUIDArr(r)
if rmUIDValues == nil {
log.Debug("missing parameter: rmUIDs")
services.ResponseNotAcceptable406MissingParam(w)
return
}
// response 406-2
errorParams := CheckParameterName(r)
if errorParams != nil {
log.Debug("parameter name error: ", errorParams)
services.ResponseNotAcceptable406ParamError(w, errorParams)
return
}
// response 400-5
if len(rmUIDValues) == 0 {
log.Debug("rmUIDs is wrong or NULL")
services.ResponseBadRequest400WrongParamValue(w)
return
}
// response 414-1
if len(rmUIDValues) > MAX_RMUID_NUM {
log.Debug("rmUID greater than", MAX_RMUID_NUM)
services.ResponseRequestURITooLong414NRMNumExceed(w, MAX_RMUID_NUM)
return
}
// response 400-1
// check rmUID is valid
// todo ...
invalidRmUIDs := CheckValidRmUID(rmUIDValues)
if len(invalidRmUIDs) != 0 {
log.Debug("rmUID is invalid")
services.ResponseBadRequest400RmUIDsIsInvalid(w, invalidRmUIDs)
return
}
// response 404-2
rmUID := CheckLocalRmUID(rmUIDValues)
if rmUID == "" {
log.Debug("rmUID does not exist")
services.ResponseNotFound404NRMNotExist(w, rmUIDValues)
return
}
// response 404-1, uri is not exist in map
attrNames := GetAttrNameArr(r)
var Oids []string
Oids = *config.GetOidByFileds(qeuryUri, attrNames, &Oids)
if len(Oids) == 0 {
log.Debug("Nothing of config map")
services.ResponseNotFound404UriNotExist(w, r)
return
}
// response 404-1, uri is not exist in map
var nameOids []config.NameOid
nameOids = *config.GetDataOidByFields(qeuryUri, attrNames, &nameOids)
if len(nameOids) == 0 {
log.Debug("Nothing of config map")
services.ResponseNotFound404UriNotExist(w, r)
return
}
result, err2 := g.Default.Get(Oids) // Get() accepts up to g.MAX_OIDS
if err2 != nil {
log.Fatalf("Get() err: %v", err2)
}
// var nameValues []config.NameValue
var nameValue config.NameValue
nameValues := make(map[string]interface{})
nameValues["rmUID"] = rmUID
for i, variable := range result.Variables {
nameValue.Name = nameOids[i].Name
log.Debugf("%d: oid: %s name: %s\n", i, variable.Name, nameValue.Name)
// if nameOids[i].Oid == variable.Name && global.IsContain(attributeNames, nameValue.Name) {
if nameOids[i].Oid == variable.Name {
// the Value of each variable returned by Get() implements
// interface{}. You could do a type switch...
switch variable.Type {
case g.OctetString:
bytes := variable.Value.([]byte)
log.Debugf("string: %s\n", string(bytes))
nameValue.Value = string(bytes)
nameValues[nameValue.Name] = nameValue.Value
case g.Integer:
value := variable.Value.(int)
log.Debugf("integer: %d\n", value)
nameValue.Value = strconv.Itoa(value)
nameValues[nameValue.Name] = nameValue.Value
case g.IPAddress:
value := variable.Value.(string)
log.Debugf("IPAddress: %s\n", variable.Value)
nameValue.Value = value
nameValues[nameValue.Name] = nameValue.Value
default:
// ... or often you're just interested in numeric values.
// ToBigInt() will return the Value as a BigInt, for plugging
// into your calculations.
log.Debugf("number: %d\n", g.ToBigInt(variable.Value))
}
}
}
getResponse := services.DataResponse{nameValues}
services.ResponseWithJson(w, http.StatusOK, getResponse)
}
func RestfulPut(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
queryNo := vars["no"]
var targetTodo stTodo
for _, Todo := range TodoList {
if Todo.No == queryNo {
targetTodo = Todo
}
}
response := ApiResponse{"200", targetTodo}
services.ResponseWithJson(w, http.StatusOK, response)
}
func RestfulHead(w http.ResponseWriter, r *http.Request) {
var targetTodo stTodo
response := ApiResponse{"200", targetTodo}
services.ResponseWithJson(w, http.StatusOK, response)
}
func RemoveElement(TodoList []stTodo, No string) stTodo {
// var targetTodo stTodo
j := 0
if len(TodoList) == 0 {
return TodoList[j]
}
for i := 0; i < len(TodoList); i++ {
if TodoList[i].No != No {
if i != j {
TodoList[i], TodoList[j] = TodoList[j], TodoList[i]
}
j++
}
}
log.Debug(TodoList[j].No, TodoList[j].Item)
return TodoList[j]
}
func RestfulDelete(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
queryNo := vars["no"] //获取No
log.Debug("RestfulDelete processing... ")
targetTodo := RemoveElement(TodoList, queryNo)
response := ApiResponse{"200", targetTodo}
services.ResponseWithJson(w, http.StatusOK, response)
}
func RestfulOptions(w http.ResponseWriter, r *http.Request) {
var targetTodo stTodo
response := ApiResponse{"200", targetTodo}
services.ResponseWithJson(w, http.StatusOK, response)
}
func RestfulTrace(w http.ResponseWriter, r *http.Request) {
var targetTodo stTodo
response := ApiResponse{"200", targetTodo}
services.ResponseWithJson(w, http.StatusOK, response)
}
func RestfulPatch(w http.ResponseWriter, r *http.Request) {
var targetTodo stTodo
response := ApiResponse{"200", targetTodo}
services.ResponseWithJson(w, http.StatusOK, response)
}