mirror of
https://github.com/netbirdio/netbird.git
synced 2024-12-12 09:50:47 +01:00
298 lines
8.6 KiB
Go
298 lines
8.6 KiB
Go
package server
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import (
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"context"
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"fmt"
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"slices"
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"github.com/netbirdio/netbird/management/server/activity"
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"github.com/netbirdio/netbird/management/server/posture"
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"github.com/netbirdio/netbird/management/server/status"
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"github.com/rs/xid"
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log "github.com/sirupsen/logrus"
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"golang.org/x/exp/maps"
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)
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func (am *DefaultAccountManager) GetPostureChecks(ctx context.Context, accountID, postureChecksID, userID string) (*posture.Checks, error) {
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user, err := am.Store.GetUserByUserID(ctx, LockingStrengthShare, userID)
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if err != nil {
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return nil, err
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}
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if user.AccountID != accountID {
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return nil, status.NewUserNotPartOfAccountError()
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}
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if !user.HasAdminPower() {
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return nil, status.NewAdminPermissionError()
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}
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return am.Store.GetPostureChecksByID(ctx, LockingStrengthShare, accountID, postureChecksID)
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}
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// SavePostureChecks saves a posture check.
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func (am *DefaultAccountManager) SavePostureChecks(ctx context.Context, accountID, userID string, postureChecks *posture.Checks) (*posture.Checks, error) {
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user, err := am.Store.GetUserByUserID(ctx, LockingStrengthShare, userID)
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if err != nil {
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return nil, err
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}
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if user.AccountID != accountID {
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return nil, status.NewUserNotPartOfAccountError()
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}
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if !user.HasAdminPower() {
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return nil, status.NewAdminPermissionError()
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}
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var updateAccountPeers bool
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var isUpdate = postureChecks.ID != ""
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var action = activity.PostureCheckCreated
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err = am.Store.ExecuteInTransaction(ctx, func(transaction Store) error {
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if err = validatePostureChecks(ctx, transaction, accountID, postureChecks); err != nil {
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return err
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}
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if isUpdate {
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updateAccountPeers, err = arePostureCheckChangesAffectPeers(ctx, transaction, accountID, postureChecks.ID)
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if err != nil {
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return err
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}
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if err = transaction.IncrementNetworkSerial(ctx, LockingStrengthUpdate, accountID); err != nil {
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return err
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}
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action = activity.PostureCheckUpdated
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}
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postureChecks.AccountID = accountID
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return transaction.SavePostureChecks(ctx, LockingStrengthUpdate, postureChecks)
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})
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if err != nil {
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return nil, err
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}
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am.StoreEvent(ctx, userID, postureChecks.ID, accountID, action, postureChecks.EventMeta())
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if updateAccountPeers {
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am.updateAccountPeers(ctx, accountID)
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}
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return postureChecks, nil
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}
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// DeletePostureChecks deletes a posture check by ID.
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func (am *DefaultAccountManager) DeletePostureChecks(ctx context.Context, accountID, postureChecksID, userID string) error {
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user, err := am.Store.GetUserByUserID(ctx, LockingStrengthShare, userID)
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if err != nil {
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return err
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}
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if user.AccountID != accountID {
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return status.NewUserNotPartOfAccountError()
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}
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if !user.HasAdminPower() {
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return status.NewAdminPermissionError()
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}
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var postureChecks *posture.Checks
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err = am.Store.ExecuteInTransaction(ctx, func(transaction Store) error {
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postureChecks, err = transaction.GetPostureChecksByID(ctx, LockingStrengthShare, accountID, postureChecksID)
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if err != nil {
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return err
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}
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if err = isPostureCheckLinkedToPolicy(ctx, transaction, postureChecksID, accountID); err != nil {
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return err
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}
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if err = transaction.IncrementNetworkSerial(ctx, LockingStrengthUpdate, accountID); err != nil {
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return err
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}
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return transaction.DeletePostureChecks(ctx, LockingStrengthUpdate, accountID, postureChecksID)
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})
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if err != nil {
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return err
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}
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am.StoreEvent(ctx, userID, postureChecks.ID, accountID, activity.PostureCheckDeleted, postureChecks.EventMeta())
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return nil
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}
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// ListPostureChecks returns a list of posture checks.
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func (am *DefaultAccountManager) ListPostureChecks(ctx context.Context, accountID, userID string) ([]*posture.Checks, error) {
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user, err := am.Store.GetUserByUserID(ctx, LockingStrengthShare, userID)
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if err != nil {
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return nil, err
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}
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if user.AccountID != accountID {
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return nil, status.NewUserNotPartOfAccountError()
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}
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if !user.HasAdminPower() {
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return nil, status.NewAdminPermissionError()
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}
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return am.Store.GetAccountPostureChecks(ctx, LockingStrengthShare, accountID)
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}
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// getPeerPostureChecks returns the posture checks applied for a given peer.
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func (am *DefaultAccountManager) getPeerPostureChecks(ctx context.Context, accountID string, peerID string) ([]*posture.Checks, error) {
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peerPostureChecks := make(map[string]*posture.Checks)
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err := am.Store.ExecuteInTransaction(ctx, func(transaction Store) error {
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postureChecks, err := transaction.GetAccountPostureChecks(ctx, LockingStrengthShare, accountID)
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if err != nil {
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return err
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}
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if len(postureChecks) == 0 {
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return nil
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}
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policies, err := transaction.GetAccountPolicies(ctx, LockingStrengthShare, accountID)
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if err != nil {
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return err
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}
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for _, policy := range policies {
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if !policy.Enabled {
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continue
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}
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if err = addPolicyPostureChecks(ctx, transaction, accountID, peerID, policy, peerPostureChecks); err != nil {
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return err
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}
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}
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return nil
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})
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if err != nil {
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return nil, err
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}
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return maps.Values(peerPostureChecks), nil
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}
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// arePostureCheckChangesAffectPeers checks if the changes in posture checks are affecting peers.
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func arePostureCheckChangesAffectPeers(ctx context.Context, transaction Store, accountID, postureCheckID string) (bool, error) {
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policies, err := transaction.GetAccountPolicies(ctx, LockingStrengthShare, accountID)
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if err != nil {
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return false, err
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}
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for _, policy := range policies {
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if slices.Contains(policy.SourcePostureChecks, postureCheckID) {
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hasPeers, err := anyGroupHasPeers(ctx, transaction, accountID, policy.ruleGroups())
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if err != nil {
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return false, err
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}
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if hasPeers {
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return true, nil
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}
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}
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}
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return false, nil
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}
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// validatePostureChecks validates the posture checks.
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func validatePostureChecks(ctx context.Context, transaction Store, accountID string, postureChecks *posture.Checks) error {
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if err := postureChecks.Validate(); err != nil {
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return status.Errorf(status.InvalidArgument, err.Error()) //nolint
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}
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// If the posture check already has an ID, verify its existence in the store.
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if postureChecks.ID != "" {
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if _, err := transaction.GetPostureChecksByID(ctx, LockingStrengthShare, accountID, postureChecks.ID); err != nil {
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return err
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}
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return nil
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}
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// For new posture checks, ensure no duplicates by name.
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checks, err := transaction.GetAccountPostureChecks(ctx, LockingStrengthShare, accountID)
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if err != nil {
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return err
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}
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for _, check := range checks {
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if check.Name == postureChecks.Name && check.ID != postureChecks.ID {
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return status.Errorf(status.InvalidArgument, "posture checks with name %s already exists", postureChecks.Name)
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}
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}
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postureChecks.ID = xid.New().String()
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return nil
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}
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// addPolicyPostureChecks adds posture checks from a policy to the peer posture checks map if the peer is in the policy's source groups.
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func addPolicyPostureChecks(ctx context.Context, transaction Store, accountID, peerID string, policy *Policy, peerPostureChecks map[string]*posture.Checks) error {
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isInGroup, err := isPeerInPolicySourceGroups(ctx, transaction, accountID, peerID, policy)
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if err != nil {
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return err
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}
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if !isInGroup {
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return nil
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}
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for _, sourcePostureCheckID := range policy.SourcePostureChecks {
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postureCheck, err := transaction.GetPostureChecksByID(ctx, LockingStrengthShare, accountID, sourcePostureCheckID)
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if err != nil {
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return err
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}
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peerPostureChecks[sourcePostureCheckID] = postureCheck
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}
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return nil
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}
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// isPeerInPolicySourceGroups checks if a peer is present in any of the policy rule source groups.
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func isPeerInPolicySourceGroups(ctx context.Context, transaction Store, accountID, peerID string, policy *Policy) (bool, error) {
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for _, rule := range policy.Rules {
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if !rule.Enabled {
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continue
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}
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for _, sourceGroup := range rule.Sources {
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group, err := transaction.GetGroupByID(ctx, LockingStrengthShare, accountID, sourceGroup)
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if err != nil {
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log.WithContext(ctx).Debugf("failed to check peer in policy source group: %v", err)
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return false, fmt.Errorf("failed to check peer in policy source group: %w", err)
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}
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if slices.Contains(group.Peers, peerID) {
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return true, nil
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}
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}
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}
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return false, nil
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}
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// isPostureCheckLinkedToPolicy checks whether the posture check is linked to any account policy.
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func isPostureCheckLinkedToPolicy(ctx context.Context, transaction Store, postureChecksID, accountID string) error {
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policies, err := transaction.GetAccountPolicies(ctx, LockingStrengthShare, accountID)
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if err != nil {
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return err
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}
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for _, policy := range policies {
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if slices.Contains(policy.SourcePostureChecks, postureChecksID) {
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return status.Errorf(status.PreconditionFailed, "posture checks have been linked to policy: %s", policy.Name)
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}
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}
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return nil
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}
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