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77 lines
3.4 KiB
Go
77 lines
3.4 KiB
Go
// mautrix-signal - A Matrix-signal puppeting bridge.
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// Copyright (C) 2023 Sumner Evans
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// Copyright (C) 2025 Tulir Asokan
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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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#include "./libsignal-ffi.h"
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extern int signal_load_sender_key_callback(void *store_ctx, SignalMutPointerSenderKeyRecord *out, SignalMutPointerProtocolAddress sender, SignalUuid distribution_id);
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extern int signal_store_sender_key_callback(void *store_ctx, SignalMutPointerProtocolAddress sender, SignalUuid distribution_id, SignalMutPointerSenderKeyRecord record);
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extern void signal_destroy_sender_key_store_callback(void *store_ctx);
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*/
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import "C"
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import (
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"context"
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"unsafe"
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"github.com/google/uuid"
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)
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type SenderKeyStore interface {
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LoadSenderKey(ctx context.Context, sender *Address, distributionID uuid.UUID) (*SenderKeyRecord, error)
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StoreSenderKey(ctx context.Context, sender *Address, distributionID uuid.UUID, record *SenderKeyRecord) error
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}
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//export signal_load_sender_key_callback
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func signal_load_sender_key_callback(storeCtx unsafe.Pointer, recordp *C.SignalMutPointerSenderKeyRecord, address C.SignalMutPointerProtocolAddress, distributionID C.SignalUuid) C.int {
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return wrapStoreCallback(storeCtx, func(store SenderKeyStore, ctx context.Context) error {
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record, err := store.LoadSenderKey(ctx, &Address{ptr: address.raw}, *(*uuid.UUID)(unsafe.Pointer(&distributionID)))
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if err == nil && record != nil {
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record.CancelFinalizer()
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recordp.raw = record.ptr
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}
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return err
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})
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}
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//export signal_store_sender_key_callback
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func signal_store_sender_key_callback(storeCtx unsafe.Pointer, address C.SignalMutPointerProtocolAddress, distributionID C.SignalUuid, senderKeyRecord C.SignalMutPointerSenderKeyRecord) C.int {
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return wrapStoreCallback(storeCtx, func(store SenderKeyStore, ctx context.Context) error {
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record := SenderKeyRecord{ptr: senderKeyRecord.raw}
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cloned, err := record.Clone()
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if err != nil {
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return err
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}
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return store.StoreSenderKey(ctx, &Address{ptr: address.raw}, *(*uuid.UUID)(unsafe.Pointer(&distributionID)), cloned)
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})
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}
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//export signal_destroy_sender_key_store_callback
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func signal_destroy_sender_key_store_callback(storeCtx unsafe.Pointer) {
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// No-op: Go's garbage collector handles cleanup
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}
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func (ctx *CallbackContext) wrapSenderKeyStore(store SenderKeyStore) C.SignalConstPointerFfiSenderKeyStoreStruct {
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return C.SignalConstPointerFfiSenderKeyStoreStruct{&C.SignalSenderKeyStore{
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ctx: wrapStore(ctx, store),
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load_sender_key: C.SignalFfiBridgeSenderKeyStoreLoadSenderKey(C.signal_load_sender_key_callback),
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store_sender_key: C.SignalFfiBridgeSenderKeyStoreStoreSenderKey(C.signal_store_sender_key_callback),
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destroy: C.SignalFfiBridgeSenderKeyStoreDestroy(C.signal_destroy_sender_key_store_callback),
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}}
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}
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