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// Copyright (c) 2022 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package store
import (
"go.mau.fi/libsignal/ecc"
groupRecord "go.mau.fi/libsignal/groups/state/record"
"go.mau.fi/libsignal/keys/identity"
"go.mau.fi/libsignal/protocol"
"go.mau.fi/libsignal/serialize"
"go.mau.fi/libsignal/state/record"
"go.mau.fi/libsignal/state/store"
"go.mau.fi/whatsmeow/util/keys"
)
var SignalProtobufSerializer = serialize.NewProtoBufSerializer()
var _ store.SignalProtocol = (*Device)(nil)
func (device *Device) GetIdentityKeyPair() *identity.KeyPair {
return identity.NewKeyPair(
identity.NewKey(ecc.NewDjbECPublicKey(*device.IdentityKey.Pub)),
ecc.NewDjbECPrivateKey(*device.IdentityKey.Priv),
)
}
func (device *Device) GetLocalRegistrationId() uint32 {
return device.RegistrationID
}
func (device *Device) SaveIdentity(address *protocol.SignalAddress, identityKey *identity.Key) {
for i := 0; ; i++ {
err := device.Identities.PutIdentity(address.String(), identityKey.PublicKey().PublicKey())
if err == nil || !device.handleDatabaseError(i, err, "save identity of %s", address.String()) {
break
}
}
}
func (device *Device) IsTrustedIdentity(address *protocol.SignalAddress, identityKey *identity.Key) bool {
for i := 0; ; i++ {
isTrusted, err := device.Identities.IsTrustedIdentity(address.String(), identityKey.PublicKey().PublicKey())
if err == nil || !device.handleDatabaseError(i, err, "check if %s's identity is trusted", address.String()) {
return isTrusted
}
}
}
func (device *Device) LoadPreKey(id uint32) *record.PreKey {
var preKey *keys.PreKey
for i := 0; ; i++ {
var err error
preKey, err = device.PreKeys.GetPreKey(id)
if err == nil || !device.handleDatabaseError(i, err, "load prekey %d", id) {
break
}
}
if preKey == nil {
return nil
}
return record.NewPreKey(preKey.KeyID, ecc.NewECKeyPair(
ecc.NewDjbECPublicKey(*preKey.Pub),
ecc.NewDjbECPrivateKey(*preKey.Priv),
), nil)
}
func (device *Device) RemovePreKey(id uint32) {
for i := 0; ; i++ {
err := device.PreKeys.RemovePreKey(id)
if err == nil || !device.handleDatabaseError(i, err, "remove prekey %d", id) {
break
}
}
}
func (device *Device) StorePreKey(preKeyID uint32, preKeyRecord *record.PreKey) {
panic("not implemented")
}
func (device *Device) ContainsPreKey(preKeyID uint32) bool {
panic("not implemented")
}
func (device *Device) LoadSession(address *protocol.SignalAddress) *record.Session {
var rawSess []byte
for i := 0; ; i++ {
var err error
rawSess, err = device.Sessions.GetSession(address.String())
if err == nil || !device.handleDatabaseError(i, err, "load session with %s", address.String()) {
break
}
}
if rawSess == nil {
return record.NewSession(SignalProtobufSerializer.Session, SignalProtobufSerializer.State)
}
sess, err := record.NewSessionFromBytes(rawSess, SignalProtobufSerializer.Session, SignalProtobufSerializer.State)
if err != nil {
device.Log.Errorf("Failed to deserialize session with %s: %v", address.String(), err)
return record.NewSession(SignalProtobufSerializer.Session, SignalProtobufSerializer.State)
}
return sess
}
func (device *Device) GetSubDeviceSessions(name string) []uint32 {
panic("not implemented")
}
func (device *Device) StoreSession(address *protocol.SignalAddress, record *record.Session) {
for i := 0; ; i++ {
err := device.Sessions.PutSession(address.String(), record.Serialize())
if err == nil || !device.handleDatabaseError(i, err, "store session with %s", address.String()) {
return
}
}
}
func (device *Device) ContainsSession(remoteAddress *protocol.SignalAddress) bool {
for i := 0; ; i++ {
hasSession, err := device.Sessions.HasSession(remoteAddress.String())
if err == nil || !device.handleDatabaseError(i, err, "store has session for %s", remoteAddress.String()) {
return hasSession
}
}
}
func (device *Device) DeleteSession(remoteAddress *protocol.SignalAddress) {
panic("not implemented")
}
func (device *Device) DeleteAllSessions() {
panic("not implemented")
}
func (device *Device) LoadSignedPreKey(signedPreKeyID uint32) *record.SignedPreKey {
if signedPreKeyID == device.SignedPreKey.KeyID {
return record.NewSignedPreKey(signedPreKeyID, 0, ecc.NewECKeyPair(
ecc.NewDjbECPublicKey(*device.SignedPreKey.Pub),
ecc.NewDjbECPrivateKey(*device.SignedPreKey.Priv),
), *device.SignedPreKey.Signature, nil)
}
return nil
}
func (device *Device) LoadSignedPreKeys() []*record.SignedPreKey {
panic("not implemented")
}
func (device *Device) StoreSignedPreKey(signedPreKeyID uint32, record *record.SignedPreKey) {
panic("not implemented")
}
func (device *Device) ContainsSignedPreKey(signedPreKeyID uint32) bool {
panic("not implemented")
}
func (device *Device) RemoveSignedPreKey(signedPreKeyID uint32) {
panic("not implemented")
}
func (device *Device) StoreSenderKey(senderKeyName *protocol.SenderKeyName, keyRecord *groupRecord.SenderKey) {
for i := 0; ; i++ {
err := device.SenderKeys.PutSenderKey(senderKeyName.GroupID(), senderKeyName.Sender().String(), keyRecord.Serialize())
if err == nil || !device.handleDatabaseError(i, err, "store sender key from %s", senderKeyName.Sender().String()) {
return
}
}
}
func (device *Device) LoadSenderKey(senderKeyName *protocol.SenderKeyName) *groupRecord.SenderKey {
var rawKey []byte
for i := 0; ; i++ {
var err error
rawKey, err = device.SenderKeys.GetSenderKey(senderKeyName.GroupID(), senderKeyName.Sender().String())
if err == nil || !device.handleDatabaseError(i, err, "load sender key from %s for %s", senderKeyName.Sender().String(), senderKeyName.GroupID()) {
break
}
}
if rawKey == nil {
return groupRecord.NewSenderKey(SignalProtobufSerializer.SenderKeyRecord, SignalProtobufSerializer.SenderKeyState)
}
key, err := groupRecord.NewSenderKeyFromBytes(rawKey, SignalProtobufSerializer.SenderKeyRecord, SignalProtobufSerializer.SenderKeyState)
if err != nil {
device.Log.Errorf("Failed to deserialize sender key from %s for %s: %v", senderKeyName.Sender().String(), senderKeyName.GroupID(), err)
return groupRecord.NewSenderKey(SignalProtobufSerializer.SenderKeyRecord, SignalProtobufSerializer.SenderKeyState)
}
return key
}
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