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api.go
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api.go
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package main
import (
"encoding/json"
"fmt"
"github.com/Symantec/ldap-group-management/lib/userinfo"
"log"
"net/http"
"sort"
"strings"
)
//All handlers and API endpoints starts from here.
var permissionMapping = map[string]int{
"create": permCreate,
"update": permUpdate,
"delete": permDelete,
}
var resourceMapping = map[string]int{
"group": resourceGroup,
"service_account": resourceSVC,
}
func (state *RuntimeState) getPreferredAcceptType(r *http.Request) string {
preferredAcceptType := "application/json"
acceptHeader, ok := r.Header["Accept"]
if ok {
for _, acceptValue := range acceptHeader {
if strings.Contains(acceptValue, "text/html") {
preferredAcceptType = "text/html"
}
}
}
return preferredAcceptType
}
func (state *RuntimeState) renderTemplateOrReturnJson(w http.ResponseWriter, r *http.Request, templateName string, pageData interface{}) error {
preferredAcceptType := state.getPreferredAcceptType(r)
switch preferredAcceptType {
case "text/html":
setSecurityHeaders(w)
cacheControlValue := "private, max-age=60"
if templateName != "simpleMessagePage" {
cacheControlValue = "private, max-age=5"
}
w.Header().Set("Cache-Control", cacheControlValue)
err := state.htmlTemplate.ExecuteTemplate(w, templateName, pageData)
if err != nil {
log.Printf("Failed to execute %v", err)
http.Error(w, "error", http.StatusInternalServerError)
return err
}
default:
b, err := json.Marshal(pageData)
if err != nil {
log.Printf("Failed marshal %v", err)
http.Error(w, "error", http.StatusInternalServerError)
return err
}
_, err = w.Write(b)
if err != nil {
log.Printf("Incomplete write %v", err)
return err
}
}
return nil
}
// Create a group handler --required
func (state *RuntimeState) createGrouphandler(w http.ResponseWriter, r *http.Request) {
if r.Method != postMethod {
state.writeFailureResponse(w, r, "POST Method is required", http.StatusMethodNotAllowed)
return
}
username, err := state.GetRemoteUserName(w, r)
if err != nil {
return
}
err = r.ParseForm()
if err != nil {
log.Println(err)
if err.Error() == "missing form body" {
http.Error(w, fmt.Sprint(err), http.StatusBadRequest)
} else {
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
}
return
}
var groupinfo userinfo.GroupInfo
groupinfo.Groupname = r.PostFormValue("groupname")
groupinfo.Description = r.PostFormValue("description")
members := r.PostFormValue("members")
//check whether the user has the ability to create group
allow, err := state.canPerformAction(username, groupinfo.Groupname, resourceGroup, permCreate)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
if !allow {
state.writeFailureResponse(w, r, fmt.Sprintf("You don't have permission to create group %s", groupinfo.Groupname), http.StatusForbidden)
return
}
//check if the group name already exists or not.
groupExistsorNot, _, err := state.Userinfo.GroupnameExistsornot(groupinfo.Groupname)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
if groupExistsorNot {
http.Error(w, fmt.Sprint("Groupname already exists! Choose a different one!"), http.StatusInternalServerError)
return
}
//if the group managed attribute (description) isn't self-managed and thus another groupname. check if that group exists or not
if groupinfo.Description != descriptionAttribute {
descriptiongroupExistsorNot, _, err := state.Userinfo.GroupnameExistsornot(groupinfo.Description)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
if !descriptiongroupExistsorNot {
http.Error(w, fmt.Sprintf("Managed by group doesn't exists! managerGroup='%s'", groupinfo.Description), http.StatusInternalServerError)
return
}
}
//check if all the users to be added exists or not.
for _, member := range strings.Split(members, ",") {
if len(member) < 1 {
continue
}
userExistsorNot, err := state.Userinfo.UsernameExistsornot(member)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
if !userExistsorNot {
http.Error(w, fmt.Sprintf("User %s doesn't exist!", member), http.StatusInternalServerError)
return
}
groupinfo.MemberUid = append(groupinfo.MemberUid, member)
}
err = state.Userinfo.CreateGroup(groupinfo)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("error occurred! May be group name exists or may be members are not available!"), http.StatusInternalServerError)
return
}
if state.sysLog != nil {
state.sysLog.Write([]byte(fmt.Sprintf("Group "+"%s"+" was created by "+"%s", groupinfo.Groupname, username)))
for _, member := range strings.Split(members, ",") {
state.sysLog.Write([]byte(fmt.Sprintf("%s"+" was added to Group "+"%s"+" by "+"%s", member, groupinfo.Groupname, username)))
}
}
isAdmin := state.Userinfo.UserisadminOrNot(username)
pageData := simpleMessagePageData{
UserName: username,
IsAdmin: isAdmin,
Title: "Group Creation Success",
SuccessMessage: "Group has been successfully Created",
}
state.renderTemplateOrReturnJson(w, r, "simpleMessagePage", pageData)
}
//Delete groups handler --required
func (state *RuntimeState) deleteGrouphandler(w http.ResponseWriter, r *http.Request) {
if r.Method != postMethod {
state.writeFailureResponse(w, r, "POST Method is required", http.StatusMethodNotAllowed)
return
}
username, err := state.GetRemoteUserName(w, r)
if err != nil {
return
}
err = r.ParseForm()
if err != nil {
log.Println(err)
if err.Error() == "missing form body" {
http.Error(w, fmt.Sprint(err), http.StatusBadRequest)
} else {
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
}
return
}
var groupnames []string
groups := r.PostFormValue("groupnames")
//check if groupnames are valid or not.
for _, eachGroup := range strings.Split(groups, ",") {
allow, err := state.canPerformAction(username, eachGroup, resourceGroup, permDelete)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
if !allow {
state.writeFailureResponse(w, r, fmt.Sprintf("You don't have permission to delete group %s", eachGroup), http.StatusForbidden)
return
}
groupnameExistsorNot, _, err := state.Userinfo.GroupnameExistsornot(eachGroup)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
if !groupnameExistsorNot {
state.writeFailureResponse(w, r, fmt.Sprintf("Group %s doesn't exist!", eachGroup), http.StatusBadRequest)
return
}
for _, groupname := range state.Config.Base.AutoGroups {
if eachGroup == groupname {
state.writeFailureResponse(w, r, groupname+" is part of auto-added group, you cannot delete it!", http.StatusBadRequest)
return
}
}
groupnames = append(groupnames, eachGroup)
}
err = state.Userinfo.DeleteGroup(groupnames)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("error occurred! May be there is no such group!"), http.StatusInternalServerError)
return
}
if state.sysLog != nil {
for _, eachGroup := range groupnames {
state.sysLog.Write([]byte(fmt.Sprintf("Group "+"%s"+" was deleted by "+"%s", eachGroup, username)))
}
}
err = deleteEntryofGroupsInDB(groupnames, state)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
isAdmin := state.Userinfo.UserisadminOrNot(username)
pageData := simpleMessagePageData{
UserName: username,
IsAdmin: isAdmin,
Title: "Group Deletion Suucess",
SuccessMessage: "Group has been successfully Deleted",
}
state.renderTemplateOrReturnJson(w, r, "simpleMessagePage", pageData)
}
func (state *RuntimeState) createServiceAccounthandler(w http.ResponseWriter, r *http.Request) {
if r.Method != postMethod {
state.writeFailureResponse(w, r, "POST Method is required", http.StatusMethodNotAllowed)
return
}
username, err := state.GetRemoteUserName(w, r)
if err != nil {
return
}
err = r.ParseForm()
if err != nil {
log.Println(err)
if err.Error() == "missing form body" {
http.Error(w, fmt.Sprint(err), http.StatusBadRequest)
} else {
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
}
return
}
var groupinfo userinfo.GroupInfo
groupinfo.Groupname = r.PostFormValue("AccountName")
groupinfo.Mail = r.PostFormValue("mail")
groupinfo.LoginShell = r.PostFormValue("loginShell")
allow, err := state.canPerformAction(username, groupinfo.Groupname, resourceSVC, permCreate)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
if !allow {
state.writeFailureResponse(w, r, fmt.Sprintf("You don't have permission to create service account %s", groupinfo.Groupname), http.StatusForbidden)
return
}
if !(groupinfo.LoginShell == "/bin/false") && !(groupinfo.LoginShell == "/bin/bash") {
log.Println("Bad request! Not an valid LoginShell value")
http.Error(w, fmt.Sprint("Bad request! Not an valid LoginShell value"), http.StatusBadRequest)
return
}
GroupExistsornot, _, err := state.Userinfo.GroupnameExistsornot(groupinfo.Groupname)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
if GroupExistsornot {
log.Println("Bad request! A group already exists with that name!")
http.Error(w, fmt.Sprint("Bad request! A group already exists with that name!"), http.StatusBadRequest)
return
}
serviceAccountExists, _, err := state.Userinfo.ServiceAccountExistsornot(groupinfo.Groupname)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
if serviceAccountExists {
log.Println("Service Account already exists!")
http.Error(w, fmt.Sprint("Service Account already exists!"), http.StatusBadRequest)
return
}
err = state.Userinfo.CreateServiceAccount(groupinfo)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("error occurred! May be group name exists or may be members are not available!"), http.StatusInternalServerError)
return
}
if state.sysLog != nil {
state.sysLog.Write([]byte(fmt.Sprintf("Service account "+"%s"+" was created by "+"%s", groupinfo.Groupname, username)))
}
isAdmin := state.Userinfo.UserisadminOrNot(username)
pageData := simpleMessagePageData{
UserName: username,
IsAdmin: isAdmin,
Title: "Service Account Creation Success",
SuccessMessage: "Service Account successfully created",
}
state.renderTemplateOrReturnJson(w, r, "simpleMessagePage", pageData)
}
func (state *RuntimeState) changeownership(w http.ResponseWriter, r *http.Request) {
if r.Method != postMethod {
state.writeFailureResponse(w, r, "POST Method is required", http.StatusMethodNotAllowed)
return
}
username, err := state.GetRemoteUserName(w, r)
if err != nil {
return
}
err = r.ParseForm()
if err != nil {
log.Println(err)
if err.Error() == "missing form body" {
http.Error(w, fmt.Sprint(err), http.StatusBadRequest)
} else {
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
}
return
}
groupList := strings.Split(r.PostFormValue("groupnames"), ",")
managegroup := r.PostFormValue("managegroup")
if len(groupList) < 1 {
state.writeFailureResponse(w, r, "groupnamesParameter is missing", http.StatusBadRequest)
return
}
donecount := 0
//check if given member exists or not and see if he is already a groupmember if yes continue.
for _, group := range groupList {
// Our UI likes to put commas as the end of the group, so we get usually "foo,bar,"... resulting in a list
// with an empty value.
if len(group) < 1 {
continue
}
groupinfo := userinfo.GroupInfo{}
groupinfo.Groupname = group
allow, err := state.canPerformAction(username, group, resourceGroup, permUpdate)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
if !allow {
state.writeFailureResponse(w, r, fmt.Sprintf("You don't have permission to update manager group for group %s", group), http.StatusForbidden)
return
}
err = state.groupExistsorNot(w, groupinfo.Groupname)
if err != nil {
return
}
err = state.Userinfo.ChangeDescription(group, managegroup)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
if state.sysLog != nil {
state.sysLog.Write([]byte(fmt.Sprintf("Group %s is managed by %s now, this change was made by %s.", group, managegroup, username)))
}
donecount += 1
}
if donecount == 0 {
state.writeFailureResponse(w, r, "Invalid groupnames parameter", http.StatusBadRequest)
return
}
isAdmin := state.Userinfo.UserisadminOrNot(username)
pageData := simpleMessagePageData{
UserName: username,
IsAdmin: isAdmin,
Title: "Change Ownership success",
SuccessMessage: "Group(s) have successfuly changed ownership",
}
state.renderTemplateOrReturnJson(w, r, "simpleMessagePage", pageData)
}
// TODO: figure out how to do this with templates or even better migrate to AJAX to get data
const getGroupsJSRequestAccessText = `
document.addEventListener('DOMContentLoaded', function () {
var groupnames = %s;
var final_groupnames=array(groupnames);
RequestAccess(final_groupnames);
datalist(groupnames[0]);
});
`
const getGroupsJSPendingActionsText = `
document.addEventListener('DOMContentLoaded', function () {
var ajaxRequest = new XMLHttpRequest();
ajaxRequest.onreadystatechange = function(){
if(ajaxRequest.readyState == 4){
if(ajaxRequest.status == 200){
var jsonObj = JSON.parse(ajaxRequest.responseText);
var groups = jsonObj.Groups;
console.log("groups :" + groups);
//list_members(users);
var pending_actions=arrayPendingActions(groups);
pendingActionsTable(pending_actions);
}
else {
console.log("Status error: " + ajaxRequest.status);
}
}
}
ajaxRequest.open('GET', '/getGroups.js?type=pendingActions&encoding=json');
ajaxRequest.send();
pendingActions = %s;
});
`
type groupsJSONData struct {
Groups [][]string
}
func (state *RuntimeState) getGroupsJSHandler(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
state.writeFailureResponse(w, r, "GET Method is required", http.StatusMethodNotAllowed)
return
}
username, err := state.GetRemoteUserName(w, r)
if err != nil {
return
}
outputText := getGroupsJSRequestAccessText
var groupsToSend [][]string
switch r.FormValue("type") {
case "all":
groupsToSend, err = state.Userinfo.GetAllGroupsManagedBy()
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
case "pendingRequests":
groupsToSend, err = state.getPendingRequestGroupsofUser(username)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
case "allNoManager":
allgroups, err := state.Userinfo.GetallGroups()
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
sort.Strings(allgroups)
groupsToSend = [][]string{allgroups}
case "pendingActions":
outputText = getGroupsJSPendingActionsText
if r.FormValue("encoding") == "json" {
groupsToSend, err = state.getUserPendingActions(username)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
}
case "managedByMe":
allGroups, err := state.Userinfo.GetAllGroupsManagedBy()
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
userGroups, err := state.Userinfo.GetgroupsofUser(username)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
userGroupMap := make(map[string]interface{})
for _, groupName := range userGroups {
userGroupMap[groupName] = nil
}
for _, groupTuple := range allGroups {
managingGroup := groupTuple[1]
_, ok := userGroupMap[managingGroup]
if ok {
groupsToSend = append(groupsToSend, groupTuple)
}
}
default:
groupsToSend, err = state.Userinfo.GetGroupsInfoOfUser(state.Config.TargetLDAP.GroupSearchBaseDNs, username)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
}
switch r.FormValue("encoding") {
case "json":
w.Header().Set("Cache-Control", "private, max-age=15")
w.Header().Set("Content-Type", "application/json")
groupsJSON := groupsJSONData{Groups: groupsToSend}
err = json.NewEncoder(w).Encode(groupsJSON)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
default:
encodedGroups, err := json.Marshal(groupsToSend)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
w.Header().Set("Cache-Control", "private, max-age=15")
w.Header().Set("Content-Type", "application/javascript")
fmt.Fprintf(w, outputText, encodedGroups)
return
}
return
}
const getUsersJSText = `
document.addEventListener('DOMContentLoaded', function () {
var ajaxRequest = new XMLHttpRequest();
ajaxRequest.onreadystatechange = function(){
if(ajaxRequest.readyState == 4){
if(ajaxRequest.status == 200){
var jsonObj = JSON.parse(ajaxRequest.responseText);
var users = jsonObj.Users;
//console.log("users :" + users);
list_members(users);
}
else {
console.log("Status error: " + ajaxRequest.status);
}
}
}
ajaxRequest.open('GET', '/getUsers.js?type=all&encoding=json');
ajaxRequest.send();
//var Allusers = %s;
//list_members(Allusers);
});
`
const getUsersGroupJSText = `
document.addEventListener('DOMContentLoaded', function () {
var groupUsers = %s;
var usernames=arrayUsers(groupUsers);
Group_Info(usernames);
});
`
type usersJSONData struct {
Users []string
}
func (state *RuntimeState) getUsersJSHandler(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
state.writeFailureResponse(w, r, "GET Method is required", http.StatusMethodNotAllowed)
return
}
_, err := state.GetRemoteUserName(w, r)
if err != nil {
log.Println(err)
return
}
outputText := getUsersJSText
var usersToSend []string
switch r.FormValue("type") {
case "group":
groupName := r.FormValue("groupName")
if groupName == "" {
log.Printf("No groupName found")
http.Error(w, fmt.Sprint(err), http.StatusBadRequest)
return
}
usersToSend, _, err = state.Userinfo.GetusersofaGroup(groupName)
if err != nil {
log.Println(err)
if err == userinfo.GroupDoesNotExist {
http.Error(w, fmt.Sprint("Group doesn't exist!"), http.StatusBadRequest)
return
}
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
outputText = getUsersGroupJSText
default:
if r.FormValue("encoding") == "json" {
usersToSend, err = state.Userinfo.GetallUsers()
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
} else {
go state.Userinfo.GetallUsers()
}
}
sort.Strings(usersToSend)
switch r.FormValue("encoding") {
case "json":
w.Header().Set("Cache-Control", "private, max-age=15")
w.Header().Set("Content-Type", "application/json")
usersJSON := usersJSONData{Users: usersToSend}
err = json.NewEncoder(w).Encode(usersJSON)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
default:
encodedUsers, err := json.Marshal(usersToSend)
if err != nil {
log.Println(err)
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
return
}
w.Header().Set("Cache-Control", "private, max-age=15")
w.Header().Set("Content-Type", "application/javascript")
fmt.Fprintf(w, outputText, encodedUsers)
return
}
return
}
func (state *RuntimeState) permissionManageHandler(w http.ResponseWriter, r *http.Request) {
if r.Method != postMethod {
state.writeFailureResponse(w, r, "POST Method is required", http.StatusMethodNotAllowed)
return
}
username, err := state.GetRemoteUserName(w, r)
if err != nil {
log.Println(err)
return
}
if !state.Userinfo.UserisadminOrNot(username) {
http.Error(w, "you are not authorized", http.StatusForbidden)
return
}
err = r.ParseForm()
if err != nil {
log.Println(err)
if err.Error() == "missing form body" {
http.Error(w, fmt.Sprint(err), http.StatusBadRequest)
} else {
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
}
return
}
groupname := r.PostFormValue("groupname")
resourceType := r.PostFormValue("resourceType")
resourceName := r.PostFormValue("resourceName")
log.Println(r.PostFormValue("permissions"))
permissionList := strings.Split(r.PostFormValue("permissions"), ",")
if len(permissionList) < 1 {
state.writeFailureResponse(w, r, "permissionsParameter is missing", http.StatusBadRequest)
return
}
err = state.groupExistsorNot(w, groupname)
if err != nil {
log.Println(err)
return
}
var resourceVal int
var ok bool
if resourceVal, ok = resourceMapping[resourceType]; !ok {
state.writeFailureResponse(w, r, fmt.Sprintf("%s resource type does not exist", resourceType), http.StatusBadRequest)
return
}
var permissions, permVal int
for _, permission := range permissionList {
if permVal, ok = permissionMapping[permission]; !ok {
state.writeFailureResponse(w, r, fmt.Sprintf("%s permission does not exist", permission), http.StatusBadRequest)
return
}
permissions += permVal
}
err = insertPermissionEntry(groupname, resourceName, resourceVal, permissions, state)
if err != nil {
state.writeFailureResponse(w, r, fmt.Sprintf("Something wrong with internal server."), http.StatusInternalServerError)
log.Println(err)
return
}
if state.sysLog != nil {
state.sysLog.Write([]byte(fmt.Sprintf("Permission %d to group %s was created by "+"%s", permissions, groupname, username)))
}
pageData := simpleMessagePageData{
UserName: username,
IsAdmin: true,
Title: "Permission Creation Success",
SuccessMessage: "permissions successfully created",
}
state.renderTemplateOrReturnJson(w, r, "simpleMessagePage", pageData)
}