package acme import ( "context" "encoding/json" "time" "github.com/pkg/errors" "github.com/smallstep/nosql" "go.step.sm/crypto/jose" ) // Account is a subset of the internal account type containing only those // attributes required for responses in the ACME protocol. type Account struct { Contact []string `json:"contact,omitempty"` Status string `json:"status"` Orders string `json:"orders"` ID string `json:"-"` Key *jose.JSONWebKey `json:"-"` } // ToLog enables response logging. func (a *Account) ToLog() (interface{}, error) { b, err := json.Marshal(a) if err != nil { return nil, ServerInternalErr(errors.Wrap(err, "error marshaling account for logging")) } return string(b), nil } // GetID returns the account ID. func (a *Account) GetID() string { return a.ID } // GetKey returns the JWK associated with the account. func (a *Account) GetKey() *jose.JSONWebKey { return a.Key } // IsValid returns true if the Account is valid. func (a *Account) IsValid() bool { return a.Status == StatusValid } // AccountOptions are the options needed to create a new ACME account. type AccountOptions struct { Key *jose.JSONWebKey Contact []string } // account represents an ACME account. type account struct { ID string `json:"id"` Created time.Time `json:"created"` Deactivated time.Time `json:"deactivated"` Key *jose.JSONWebKey `json:"key"` Contact []string `json:"contact,omitempty"` Status string `json:"status"` } // newAccount returns a new acme account type. func newAccount(db nosql.DB, ops AccountOptions) (*account, error) { id, err := randID() if err != nil { return nil, err } a := &account{ ID: id, Key: ops.Key, Contact: ops.Contact, Status: "valid", Created: clock.Now(), } return a, a.saveNew(db) } // toACME converts the internal Account type into the public acmeAccount // type for presentation in the ACME protocol. func (a *account) toACME(ctx context.Context, db nosql.DB, dir *directory) (*Account, error) { return &Account{ Status: a.Status, Contact: a.Contact, Orders: dir.getLink(ctx, OrdersByAccountLink, true, a.ID), Key: a.Key, ID: a.ID, }, nil } // save writes the Account to the DB. // If the account is new then the necessary indices will be created. // Else, the account in the DB will be updated. func (a *account) saveNew(db nosql.DB) error { kid, err := keyToID(a.Key) if err != nil { return err } kidB := []byte(kid) // Set the jwkID -> acme account ID index _, swapped, err := db.CmpAndSwap(accountByKeyIDTable, kidB, nil, []byte(a.ID)) switch { case err != nil: return ServerInternalErr(errors.Wrap(err, "error setting key-id to account-id index")) case !swapped: return ServerInternalErr(errors.Errorf("key-id to account-id index already exists")) default: if err = a.save(db, nil); err != nil { db.Del(accountByKeyIDTable, kidB) return err } return nil } } func (a *account) save(db nosql.DB, old *account) error { var ( err error oldB []byte ) if old == nil { oldB = nil } else { if oldB, err = json.Marshal(old); err != nil { return ServerInternalErr(errors.Wrap(err, "error marshaling old acme order")) } } b, err := json.Marshal(*a) if err != nil { return errors.Wrap(err, "error marshaling new account object") } // Set the Account _, swapped, err := db.CmpAndSwap(accountTable, []byte(a.ID), oldB, b) switch { case err != nil: return ServerInternalErr(errors.Wrap(err, "error storing account")) case !swapped: return ServerInternalErr(errors.New("error storing account; " + "value has changed since last read")) default: return nil } } // update updates the acme account object stored in the database if, // and only if, the account has not changed since the last read. func (a *account) update(db nosql.DB, contact []string) (*account, error) { b := *a b.Contact = contact if err := b.save(db, a); err != nil { return nil, err } return &b, nil } // deactivate deactivates the acme account. func (a *account) deactivate(db nosql.DB) (*account, error) { b := *a b.Status = StatusDeactivated b.Deactivated = clock.Now() if err := b.save(db, a); err != nil { return nil, err } return &b, nil } // getAccountByID retrieves the account with the given ID. func getAccountByID(db nosql.DB, id string) (*account, error) { ab, err := db.Get(accountTable, []byte(id)) if err != nil { if nosql.IsErrNotFound(err) { return nil, MalformedErr(errors.Wrapf(err, "account %s not found", id)) } return nil, ServerInternalErr(errors.Wrapf(err, "error loading account %s", id)) } a := new(account) if err = json.Unmarshal(ab, a); err != nil { return nil, ServerInternalErr(errors.Wrap(err, "error unmarshaling account")) } return a, nil } // getAccountByKeyID retrieves Id associated with the given Kid. func getAccountByKeyID(db nosql.DB, kid string) (*account, error) { id, err := db.Get(accountByKeyIDTable, []byte(kid)) if err != nil { if nosql.IsErrNotFound(err) { return nil, MalformedErr(errors.Wrapf(err, "account with key id %s not found", kid)) } return nil, ServerInternalErr(errors.Wrapf(err, "error loading key-account index")) } return getAccountByID(db, string(id)) }