mautrix-signal/pkg/libsignalgo/signedprekey.go

148 lines
4.8 KiB
Go

// mautrix-signal - A Matrix-signal puppeting bridge.
// Copyright (C) 2023 Sumner Evans
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package libsignalgo
/*
#cgo LDFLAGS: -lsignal_ffi -ldl -lm
#include "./libsignal-ffi.h"
*/
import "C"
import (
"runtime"
"time"
)
type SignedPreKeyRecord struct {
nc noCopy
ptr *C.SignalSignedPreKeyRecord
}
func wrapSignedPreKeyRecord(ptr *C.SignalSignedPreKeyRecord) *SignedPreKeyRecord {
spkr := &SignedPreKeyRecord{ptr: ptr}
runtime.SetFinalizer(spkr, (*SignedPreKeyRecord).Destroy)
return spkr
}
func NewSignedPreKeyRecord(id uint32, timestamp time.Time, publicKey *PublicKey, privateKey *PrivateKey, signature []byte) (*SignedPreKeyRecord, error) {
var spkr *C.SignalSignedPreKeyRecord
signalFfiError := C.signal_signed_pre_key_record_new(&spkr, C.uint32_t(id), C.uint64_t(timestamp.UnixMilli()), publicKey.ptr, privateKey.ptr, BytesToBuffer(signature))
runtime.KeepAlive(publicKey)
runtime.KeepAlive(privateKey)
runtime.KeepAlive(signature)
if signalFfiError != nil {
return nil, wrapError(signalFfiError)
}
return wrapSignedPreKeyRecord(spkr), nil
}
func NewSignedPreKeyRecordFromPrivateKey(id uint32, timestamp time.Time, privateKey *PrivateKey, signature []byte) (*SignedPreKeyRecord, error) {
pub, err := privateKey.GetPublicKey()
if err != nil {
return nil, err
}
return NewSignedPreKeyRecord(id, timestamp, pub, privateKey, signature)
}
func DeserializeSignedPreKeyRecord(serialized []byte) (*SignedPreKeyRecord, error) {
var spkr *C.SignalSignedPreKeyRecord
signalFfiError := C.signal_signed_pre_key_record_deserialize(&spkr, BytesToBuffer(serialized))
runtime.KeepAlive(serialized)
if signalFfiError != nil {
return nil, wrapError(signalFfiError)
}
return wrapSignedPreKeyRecord(spkr), nil
}
func (spkr *SignedPreKeyRecord) Clone() (*SignedPreKeyRecord, error) {
var cloned *C.SignalSignedPreKeyRecord
signalFfiError := C.signal_signed_pre_key_record_clone(&cloned, spkr.ptr)
runtime.KeepAlive(spkr)
if signalFfiError != nil {
return nil, wrapError(signalFfiError)
}
return wrapSignedPreKeyRecord(cloned), nil
}
func (spkr *SignedPreKeyRecord) Destroy() error {
spkr.CancelFinalizer()
return wrapError(C.signal_signed_pre_key_record_destroy(spkr.ptr))
}
func (spkr *SignedPreKeyRecord) CancelFinalizer() {
runtime.SetFinalizer(spkr, nil)
}
func (spkr *SignedPreKeyRecord) Serialize() ([]byte, error) {
var serialized C.SignalOwnedBuffer = C.SignalOwnedBuffer{}
signalFfiError := C.signal_signed_pre_key_record_serialize(&serialized, spkr.ptr)
runtime.KeepAlive(spkr)
if signalFfiError != nil {
return nil, wrapError(signalFfiError)
}
return CopySignalOwnedBufferToBytes(serialized), nil
}
func (spkr *SignedPreKeyRecord) GetSignature() ([]byte, error) {
var signature C.SignalOwnedBuffer = C.SignalOwnedBuffer{}
signalFfiError := C.signal_signed_pre_key_record_get_signature(&signature, spkr.ptr)
runtime.KeepAlive(spkr)
if signalFfiError != nil {
return nil, wrapError(signalFfiError)
}
return CopySignalOwnedBufferToBytes(signature), nil
}
func (spkr *SignedPreKeyRecord) GetID() (uint32, error) {
var id C.uint32_t
signalFfiError := C.signal_signed_pre_key_record_get_id(&id, spkr.ptr)
runtime.KeepAlive(spkr)
if signalFfiError != nil {
return 0, wrapError(signalFfiError)
}
return uint32(id), nil
}
func (spkr *SignedPreKeyRecord) GetTimestamp() (time.Time, error) {
var ts C.uint64_t
signalFfiError := C.signal_signed_pre_key_record_get_timestamp(&ts, spkr.ptr)
runtime.KeepAlive(spkr)
if signalFfiError != nil {
return time.Time{}, wrapError(signalFfiError)
}
return time.UnixMilli(int64(ts)), nil
}
func (spkr *SignedPreKeyRecord) GetPublicKey() (*PublicKey, error) {
var pub *C.SignalPublicKey
signalFfiError := C.signal_signed_pre_key_record_get_public_key(&pub, spkr.ptr)
runtime.KeepAlive(spkr)
if signalFfiError != nil {
return nil, wrapError(signalFfiError)
}
return wrapPublicKey(pub), nil
}
func (spkr *SignedPreKeyRecord) GetPrivateKey() (*PrivateKey, error) {
var priv *C.SignalPrivateKey
signalFfiError := C.signal_signed_pre_key_record_get_private_key(&priv, spkr.ptr)
runtime.KeepAlive(spkr)
if signalFfiError != nil {
return nil, wrapError(signalFfiError)
}
return wrapPrivateKey(priv), nil
}