[management] Refactor posture check to use store methods (#2874)

This commit is contained in:
Bethuel Mmbaga
2024-11-25 18:26:24 +03:00
committed by GitHub
parent 9810386937
commit ca12bc6953
18 changed files with 589 additions and 260 deletions

View File

@@ -2,16 +2,14 @@ package server
import (
"context"
"fmt"
"slices"
"github.com/netbirdio/netbird/management/server/activity"
nbpeer "github.com/netbirdio/netbird/management/server/peer"
"github.com/netbirdio/netbird/management/server/posture"
"github.com/netbirdio/netbird/management/server/status"
)
const (
errMsgPostureAdminOnly = "only users with admin power are allowed to view posture checks"
"github.com/rs/xid"
"golang.org/x/exp/maps"
)
func (am *DefaultAccountManager) GetPostureChecks(ctx context.Context, accountID, postureChecksID, userID string) (*posture.Checks, error) {
@@ -20,219 +18,284 @@ func (am *DefaultAccountManager) GetPostureChecks(ctx context.Context, accountID
return nil, err
}
if !user.HasAdminPower() || user.AccountID != accountID {
return nil, status.Errorf(status.PermissionDenied, errMsgPostureAdminOnly)
}
return am.Store.GetPostureChecksByID(ctx, LockingStrengthShare, postureChecksID, accountID)
}
func (am *DefaultAccountManager) SavePostureChecks(ctx context.Context, accountID, userID string, postureChecks *posture.Checks) error {
unlock := am.Store.AcquireWriteLockByUID(ctx, accountID)
defer unlock()
account, err := am.Store.GetAccount(ctx, accountID)
if err != nil {
return err
}
user, err := account.FindUser(userID)
if err != nil {
return err
if user.AccountID != accountID {
return nil, status.NewUserNotPartOfAccountError()
}
if !user.HasAdminPower() {
return status.Errorf(status.PermissionDenied, errMsgPostureAdminOnly)
return nil, status.NewAdminPermissionError()
}
if err := postureChecks.Validate(); err != nil {
return status.Errorf(status.InvalidArgument, err.Error()) //nolint
return am.Store.GetPostureChecksByID(ctx, LockingStrengthShare, accountID, postureChecksID)
}
// SavePostureChecks saves a posture check.
func (am *DefaultAccountManager) SavePostureChecks(ctx context.Context, accountID, userID string, postureChecks *posture.Checks) (*posture.Checks, error) {
unlock := am.Store.AcquireWriteLockByUID(ctx, accountID)
defer unlock()
user, err := am.Store.GetUserByUserID(ctx, LockingStrengthShare, userID)
if err != nil {
return nil, err
}
exists, uniqName := am.savePostureChecks(account, postureChecks)
// we do not allow create new posture checks with non uniq name
if !exists && !uniqName {
return status.Errorf(status.PreconditionFailed, "Posture check name should be unique")
if user.AccountID != accountID {
return nil, status.NewUserNotPartOfAccountError()
}
action := activity.PostureCheckCreated
if exists {
action = activity.PostureCheckUpdated
account.Network.IncSerial()
if !user.HasAdminPower() {
return nil, status.NewAdminPermissionError()
}
if err = am.Store.SaveAccount(ctx, account); err != nil {
return err
var updateAccountPeers bool
var isUpdate = postureChecks.ID != ""
var action = activity.PostureCheckCreated
err = am.Store.ExecuteInTransaction(ctx, func(transaction Store) error {
if err = validatePostureChecks(ctx, transaction, accountID, postureChecks); err != nil {
return err
}
if isUpdate {
updateAccountPeers, err = arePostureCheckChangesAffectPeers(ctx, transaction, accountID, postureChecks.ID)
if err != nil {
return err
}
if err = transaction.IncrementNetworkSerial(ctx, LockingStrengthUpdate, accountID); err != nil {
return err
}
action = activity.PostureCheckUpdated
}
postureChecks.AccountID = accountID
return transaction.SavePostureChecks(ctx, LockingStrengthUpdate, postureChecks)
})
if err != nil {
return nil, err
}
am.StoreEvent(ctx, userID, postureChecks.ID, accountID, action, postureChecks.EventMeta())
if arePostureCheckChangesAffectingPeers(account, postureChecks.ID, exists) {
if updateAccountPeers {
am.updateAccountPeers(ctx, accountID)
}
return nil
return postureChecks, nil
}
// DeletePostureChecks deletes a posture check by ID.
func (am *DefaultAccountManager) DeletePostureChecks(ctx context.Context, accountID, postureChecksID, userID string) error {
unlock := am.Store.AcquireWriteLockByUID(ctx, accountID)
defer unlock()
account, err := am.Store.GetAccount(ctx, accountID)
user, err := am.Store.GetUserByUserID(ctx, LockingStrengthShare, userID)
if err != nil {
return err
}
user, err := account.FindUser(userID)
if err != nil {
return err
if user.AccountID != accountID {
return status.NewUserNotPartOfAccountError()
}
if !user.HasAdminPower() {
return status.Errorf(status.PermissionDenied, errMsgPostureAdminOnly)
return status.NewAdminPermissionError()
}
postureChecks, err := am.deletePostureChecks(account, postureChecksID)
var postureChecks *posture.Checks
err = am.Store.ExecuteInTransaction(ctx, func(transaction Store) error {
postureChecks, err = transaction.GetPostureChecksByID(ctx, LockingStrengthShare, accountID, postureChecksID)
if err != nil {
return err
}
if err = isPostureCheckLinkedToPolicy(ctx, transaction, postureChecksID, accountID); err != nil {
return err
}
if err = transaction.IncrementNetworkSerial(ctx, LockingStrengthUpdate, accountID); err != nil {
return err
}
return transaction.DeletePostureChecks(ctx, LockingStrengthUpdate, accountID, postureChecksID)
})
if err != nil {
return err
}
if err = am.Store.SaveAccount(ctx, account); err != nil {
return err
}
am.StoreEvent(ctx, userID, postureChecks.ID, accountID, activity.PostureCheckDeleted, postureChecks.EventMeta())
return nil
}
// ListPostureChecks returns a list of posture checks.
func (am *DefaultAccountManager) ListPostureChecks(ctx context.Context, accountID, userID string) ([]*posture.Checks, error) {
user, err := am.Store.GetUserByUserID(ctx, LockingStrengthShare, userID)
if err != nil {
return nil, err
}
if !user.HasAdminPower() || user.AccountID != accountID {
return nil, status.Errorf(status.PermissionDenied, errMsgPostureAdminOnly)
if user.AccountID != accountID {
return nil, status.NewUserNotPartOfAccountError()
}
if !user.HasAdminPower() {
return nil, status.NewAdminPermissionError()
}
return am.Store.GetAccountPostureChecks(ctx, LockingStrengthShare, accountID)
}
func (am *DefaultAccountManager) savePostureChecks(account *Account, postureChecks *posture.Checks) (exists, uniqName bool) {
uniqName = true
for i, p := range account.PostureChecks {
if !exists && p.ID == postureChecks.ID {
account.PostureChecks[i] = postureChecks
exists = true
}
if p.Name == postureChecks.Name {
uniqName = false
}
}
if !exists {
account.PostureChecks = append(account.PostureChecks, postureChecks)
}
return
}
func (am *DefaultAccountManager) deletePostureChecks(account *Account, postureChecksID string) (*posture.Checks, error) {
postureChecksIdx := -1
for i, postureChecks := range account.PostureChecks {
if postureChecks.ID == postureChecksID {
postureChecksIdx = i
break
}
}
if postureChecksIdx < 0 {
return nil, status.Errorf(status.NotFound, "posture checks with ID %s doesn't exist", postureChecksID)
}
// Check if posture check is linked to any policy
if isLinked, linkedPolicy := isPostureCheckLinkedToPolicy(account, postureChecksID); isLinked {
return nil, status.Errorf(status.PreconditionFailed, "posture checks have been linked to policy: %s", linkedPolicy.Name)
}
postureChecks := account.PostureChecks[postureChecksIdx]
account.PostureChecks = append(account.PostureChecks[:postureChecksIdx], account.PostureChecks[postureChecksIdx+1:]...)
return postureChecks, nil
}
// getPeerPostureChecks returns the posture checks applied for a given peer.
func (am *DefaultAccountManager) getPeerPostureChecks(account *Account, peer *nbpeer.Peer) []*posture.Checks {
peerPostureChecks := make(map[string]posture.Checks)
func (am *DefaultAccountManager) getPeerPostureChecks(ctx context.Context, accountID string, peerID string) ([]*posture.Checks, error) {
peerPostureChecks := make(map[string]*posture.Checks)
if len(account.PostureChecks) == 0 {
err := am.Store.ExecuteInTransaction(ctx, func(transaction Store) error {
postureChecks, err := transaction.GetAccountPostureChecks(ctx, LockingStrengthShare, accountID)
if err != nil {
return err
}
if len(postureChecks) == 0 {
return nil
}
policies, err := transaction.GetAccountPolicies(ctx, LockingStrengthShare, accountID)
if err != nil {
return err
}
for _, policy := range policies {
if !policy.Enabled {
continue
}
if err = addPolicyPostureChecks(ctx, transaction, accountID, peerID, policy, peerPostureChecks); err != nil {
return err
}
}
return nil
})
if err != nil {
return nil, err
}
return maps.Values(peerPostureChecks), nil
}
// arePostureCheckChangesAffectPeers checks if the changes in posture checks are affecting peers.
func arePostureCheckChangesAffectPeers(ctx context.Context, transaction Store, accountID, postureCheckID string) (bool, error) {
policies, err := transaction.GetAccountPolicies(ctx, LockingStrengthShare, accountID)
if err != nil {
return false, err
}
for _, policy := range policies {
if slices.Contains(policy.SourcePostureChecks, postureCheckID) {
hasPeers, err := anyGroupHasPeers(ctx, transaction, accountID, policy.ruleGroups())
if err != nil {
return false, err
}
if hasPeers {
return true, nil
}
}
}
return false, nil
}
// validatePostureChecks validates the posture checks.
func validatePostureChecks(ctx context.Context, transaction Store, accountID string, postureChecks *posture.Checks) error {
if err := postureChecks.Validate(); err != nil {
return status.Errorf(status.InvalidArgument, err.Error()) //nolint
}
// If the posture check already has an ID, verify its existence in the store.
if postureChecks.ID != "" {
if _, err := transaction.GetPostureChecksByID(ctx, LockingStrengthShare, accountID, postureChecks.ID); err != nil {
return err
}
return nil
}
for _, policy := range account.Policies {
if !policy.Enabled {
continue
}
// For new posture checks, ensure no duplicates by name.
checks, err := transaction.GetAccountPostureChecks(ctx, LockingStrengthShare, accountID)
if err != nil {
return err
}
if isPeerInPolicySourceGroups(peer.ID, account, policy) {
addPolicyPostureChecks(account, policy, peerPostureChecks)
for _, check := range checks {
if check.Name == postureChecks.Name && check.ID != postureChecks.ID {
return status.Errorf(status.InvalidArgument, "posture checks with name %s already exists", postureChecks.Name)
}
}
postureChecksList := make([]*posture.Checks, 0, len(peerPostureChecks))
for _, check := range peerPostureChecks {
checkCopy := check
postureChecksList = append(postureChecksList, &checkCopy)
postureChecks.ID = xid.New().String()
return nil
}
// addPolicyPostureChecks adds posture checks from a policy to the peer posture checks map if the peer is in the policy's source groups.
func addPolicyPostureChecks(ctx context.Context, transaction Store, accountID, peerID string, policy *Policy, peerPostureChecks map[string]*posture.Checks) error {
isInGroup, err := isPeerInPolicySourceGroups(ctx, transaction, accountID, peerID, policy)
if err != nil {
return err
}
return postureChecksList
if !isInGroup {
return nil
}
for _, sourcePostureCheckID := range policy.SourcePostureChecks {
postureCheck, err := transaction.GetPostureChecksByID(ctx, LockingStrengthShare, accountID, sourcePostureCheckID)
if err != nil {
return err
}
peerPostureChecks[sourcePostureCheckID] = postureCheck
}
return nil
}
// isPeerInPolicySourceGroups checks if a peer is present in any of the policy rule source groups.
func isPeerInPolicySourceGroups(peerID string, account *Account, policy *Policy) bool {
func isPeerInPolicySourceGroups(ctx context.Context, transaction Store, accountID, peerID string, policy *Policy) (bool, error) {
for _, rule := range policy.Rules {
if !rule.Enabled {
continue
}
for _, sourceGroup := range rule.Sources {
group, ok := account.Groups[sourceGroup]
if ok && slices.Contains(group.Peers, peerID) {
return true
group, err := transaction.GetGroupByID(ctx, LockingStrengthShare, accountID, sourceGroup)
if err != nil {
return false, fmt.Errorf("failed to check peer in policy source group: %w", err)
}
if slices.Contains(group.Peers, peerID) {
return true, nil
}
}
}
return false
}
func addPolicyPostureChecks(account *Account, policy *Policy, peerPostureChecks map[string]posture.Checks) {
for _, sourcePostureCheckID := range policy.SourcePostureChecks {
for _, postureCheck := range account.PostureChecks {
if postureCheck.ID == sourcePostureCheckID {
peerPostureChecks[sourcePostureCheckID] = *postureCheck
}
}
}
}
func isPostureCheckLinkedToPolicy(account *Account, postureChecksID string) (bool, *Policy) {
for _, policy := range account.Policies {
if slices.Contains(policy.SourcePostureChecks, postureChecksID) {
return true, policy
}
}
return false, nil
}
// arePostureCheckChangesAffectingPeers checks if the changes in posture checks are affecting peers.
func arePostureCheckChangesAffectingPeers(account *Account, postureCheckID string, exists bool) bool {
if !exists {
return false
// isPostureCheckLinkedToPolicy checks whether the posture check is linked to any account policy.
func isPostureCheckLinkedToPolicy(ctx context.Context, transaction Store, postureChecksID, accountID string) error {
policies, err := transaction.GetAccountPolicies(ctx, LockingStrengthShare, accountID)
if err != nil {
return err
}
isLinked, linkedPolicy := isPostureCheckLinkedToPolicy(account, postureCheckID)
if !isLinked {
return false
for _, policy := range policies {
if slices.Contains(policy.SourcePostureChecks, postureChecksID) {
return status.Errorf(status.PreconditionFailed, "posture checks have been linked to policy: %s", policy.Name)
}
}
return anyGroupHasPeers(account, linkedPolicy.ruleGroups())
return nil
}