/
ListAdmins.go
219 lines (180 loc) · 6.08 KB
/
ListAdmins.go
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// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: MIT-0
// snippet-start:[iam.go.list_admins]
package main
// snippet-start:[iam.go.list_admins.imports]
import (
"fmt"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/iam"
)
// snippet-end:[iam.go.list_admins.imports]
// snippet-start:[iam.go.list_admins.user_policy_has_admin]
func userPolicyHasAdmin(user *iam.UserDetail, admin string) bool {
for _, policy := range user.UserPolicyList {
if *policy.PolicyName == admin {
return true
}
}
return false
}
// snippet-end:[iam.go.list_admins.user_policy_has_admin]
// snippet-start:[iam.go.list_admins_attached_user_policy_has_admin]
func attachedUserPolicyHasAdmin(user *iam.UserDetail, admin string) bool {
for _, policy := range user.AttachedManagedPolicies {
if *policy.PolicyName == admin {
return true
}
}
return false
}
// snippet-end:[iam.go.list_admins_attached_user_policy_has_admin]
// snippet-start:[iam.go.list_admins_group_policy_has_admin]
func groupPolicyHasAdmin(svc *iam.IAM, group *iam.Group, admin string) (bool, error) {
input := &iam.ListGroupPoliciesInput{
GroupName: group.GroupName,
}
result, err := svc.ListGroupPolicies(input)
if err != nil {
return false, err
}
// Wade through policies
for _, policyName := range result.PolicyNames {
if *policyName == admin {
return true, nil
}
}
return false, nil
}
// snippet-end:[iam.go.list_admins_group_policy_has_admin]
// snippet-start:[iam.go.list_admins_attached_group_policy_has_admin]
func attachedGroupPolicyHasAdmin(svc *iam.IAM, group *iam.Group, admin string) (bool, error) {
input := &iam.ListAttachedGroupPoliciesInput{GroupName: group.GroupName}
result, err := svc.ListAttachedGroupPolicies(input)
if err != nil {
return false, err
}
for _, policy := range result.AttachedPolicies {
if *policy.PolicyName == admin {
return true, nil
}
}
return false, nil
}
// snippet-end:[iam.go.list_admins_attached_group_policy_has_admin]
// snippet-start:[iam.go.list_admins_users_groups_have_admin]
func usersGroupsHaveAdmin(svc *iam.IAM, user *iam.UserDetail, admin string) (bool, error) {
input := &iam.ListGroupsForUserInput{UserName: user.UserName}
result, err := svc.ListGroupsForUser(input)
if err != nil {
return false, err
}
for _, group := range result.Groups {
groupPolicyHasAdmin, err := groupPolicyHasAdmin(svc, group, admin)
if err != nil {
return false, err
}
if groupPolicyHasAdmin {
return true, nil
}
attachedGroupPolicyHasAdmin, err := attachedGroupPolicyHasAdmin(svc, group, admin)
if err != nil {
return false, err
}
if attachedGroupPolicyHasAdmin {
return true, nil
}
}
return false, nil
}
// snippet-end:[iam.go.list_admins_users_groups_have_admin]
// GetNumUsersAndAdmins determines how many users have administrator privileges.
// Inputs:
// sess is the current session, which provides configuration for the SDK's service clients
// name is the name of the RESOURCE
// Output:
// If success, the number of users and admins, and nil
// Otherwise, 0, 0 and an error
func GetNumUsersAndAdmins(sess *session.Session) (int, int, error) {
// snippet-start:[iam.go.list_admins.call]
svc := iam.New(sess)
numUsers := 0
numAdmins := 0
// Get list of users
user := "User"
input := &iam.GetAccountAuthorizationDetailsInput{Filter: []*string{&user}}
resp, err := svc.GetAccountAuthorizationDetails(input)
if err != nil {
return 0, 0, err
}
// The policy name that indicates administrator access
adminName := "AdministratorAccess"
// Wade through resulting users
for _, user := range resp.UserDetailList {
numUsers++
isAdmin, err := isUserAdmin(svc, user, adminName)
if err != nil {
return 0, 0, err
}
if isAdmin {
fmt.Println(*user.UserName)
numAdmins++
}
}
// snippet-end:[iam.go.list_admins.call]
// snippet-start:[iam.go.list_admins.truncated]
for *resp.IsTruncated {
input := &iam.GetAccountAuthorizationDetailsInput{Filter: []*string{&user}, Marker: resp.Marker}
resp, err = svc.GetAccountAuthorizationDetails(input)
if err != nil {
return 0, 0, err
}
// Wade through resulting users
for _, user := range resp.UserDetailList {
numUsers++
isAdmin, err := isUserAdmin(svc, user, adminName)
if err != nil {
return 0, 0, err
}
if isAdmin {
fmt.Println(*user.UserName)
numAdmins++
}
}
}
// snippet-end:[iam.go.list_admins.truncated]
return numUsers, numAdmins, nil
}
func isUserAdmin(svc *iam.IAM, user *iam.UserDetail, admin string) (bool, error) {
// Check policy, attached policy, and groups (policy and attached policy)
policyHasAdmin := userPolicyHasAdmin(user, admin)
if policyHasAdmin {
return true, nil
}
attachedPolicyHasAdmin := attachedUserPolicyHasAdmin(user, admin)
if attachedPolicyHasAdmin {
return true, nil
}
userGroupsHaveAdmin, err := usersGroupsHaveAdmin(svc, user, admin)
if err != nil {
return false, err
}
if userGroupsHaveAdmin {
return true, nil
}
return false, nil
}
func main() {
sess := session.Must(session.NewSessionWithOptions(session.Options{
SharedConfigState: session.SharedConfigEnable,
}))
numUsers, numAdmins, err := GetNumUsersAndAdmins(sess)
if err != nil {
fmt.Println("Got an error finding users who are admins:")
fmt.Println(err)
return
}
fmt.Println("")
fmt.Println("Found", numAdmins, "admin(s) out of", numUsers, "user(s)")
}
// snippet-end:[iam.go.list_admins]