83 lines
2.6 KiB
Go
83 lines
2.6 KiB
Go
// mautrix-signal - A Matrix-signal puppeting bridge.
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// Copyright (C) 2023 Sumner Evans
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package libsignalgo
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/*
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#cgo LDFLAGS: -lsignal_ffi -ldl -lm
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#include "./libsignal-ffi.h"
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*/
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import "C"
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import "runtime"
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type CiphertextMessageType uint8
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const (
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CiphertextMessageTypeWhisper CiphertextMessageType = 2
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CiphertextMessageTypePreKey CiphertextMessageType = 3
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CiphertextMessageTypeSenderKey CiphertextMessageType = 7
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CiphertextMessageTypePlaintext CiphertextMessageType = 8
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)
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type CiphertextMessage struct {
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nc noCopy
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ptr *C.SignalCiphertextMessage
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}
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func wrapCiphertextMessage(ptr *C.SignalCiphertextMessage) *CiphertextMessage {
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ciphertextMessage := &CiphertextMessage{ptr: ptr}
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runtime.SetFinalizer(ciphertextMessage, (*CiphertextMessage).Destroy)
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return ciphertextMessage
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}
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func NewCiphertextMessage(plaintext *PlaintextContent) (*CiphertextMessage, error) {
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var ciphertextMessage *C.SignalCiphertextMessage
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signalFfiError := C.signal_ciphertext_message_from_plaintext_content(&ciphertextMessage, plaintext.ptr)
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if signalFfiError != nil {
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return nil, wrapError(signalFfiError)
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}
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return wrapCiphertextMessage(ciphertextMessage), nil
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}
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func (c *CiphertextMessage) Destroy() error {
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c.CancelFinalizer()
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return wrapError(C.signal_ciphertext_message_destroy(c.ptr))
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}
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func (c *CiphertextMessage) CancelFinalizer() {
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runtime.SetFinalizer(c, nil)
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}
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func (c *CiphertextMessage) Serialize() ([]byte, error) {
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var serialized C.SignalOwnedBuffer = C.SignalOwnedBuffer{}
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signalFfiError := C.signal_ciphertext_message_serialize(&serialized, c.ptr)
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runtime.KeepAlive(c)
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if signalFfiError != nil {
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return nil, wrapError(signalFfiError)
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}
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return CopySignalOwnedBufferToBytes(serialized), nil
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}
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func (c *CiphertextMessage) MessageType() (CiphertextMessageType, error) {
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var messageType C.uint8_t
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signalFfiError := C.signal_ciphertext_message_type(&messageType, c.ptr)
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runtime.KeepAlive(c)
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if signalFfiError != nil {
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return 0, wrapError(signalFfiError)
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}
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return CiphertextMessageType(messageType), nil
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}
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