mirror of
https://github.com/AyuGram/AyuGramDesktop.git
synced 2026-07-25 15:04:57 +00:00
John Preston
121 lines
3.0 KiB
C++
121 lines
3.0 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "tde2e/tde2e_api.h"
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#include "base/assertion.h"
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#include <tde2e/td/e2e/e2e_api.h>
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namespace TdE2E {
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namespace {
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constexpr auto kPermissionAdd = 1;
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constexpr auto kPermissionRemove = 2;
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[[nodiscard]] tde2e_api::Slice Slice(const QByteArray &data) {
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return {
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data.constData(),
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std::string_view::size_type(data.size())
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};
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}
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} // namespace
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Call::Call(UserId myUserId)
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: _myUserId(myUserId) {
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const auto id = tde2e_api::key_generate_temporary_private_key();
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Assert(id.is_ok());
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_myKeyId = { .v = uint64(id.value()) };
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const auto key = tde2e_api::key_to_public_key(_myKeyId.v);
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Assert(key.is_ok());
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Assert(key.value().size() == sizeof(_myKey));
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memcpy(&_myKey, key.value().data(), sizeof(_myKey));
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}
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PublicKey Call::myKey() const {
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return _myKey;
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}
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Block Call::makeZeroBlock() const {
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const auto publicKeyView = std::string_view{
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reinterpret_cast<const char*>(&_myKey),
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sizeof(_myKey),
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};
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const auto publicKeyId = tde2e_api::key_from_public_key(publicKeyView);
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Assert(publicKeyId.is_ok());
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const auto myKeyId = std::int64_t(_myKeyId.v);
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const auto result = tde2e_api::call_create_zero_block(myKeyId, {
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.height = 0,
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.participants = { {
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.user_id = std::int64_t(_myUserId.v),
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.public_key_id = publicKeyId.value(),
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.permissions = kPermissionAdd | kPermissionRemove,
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} },
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});
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Assert(result.is_ok());
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return {
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.data = QByteArray::fromStdString(result.value()),
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};
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}
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void Call::create(const Block &last) {
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tde2e_api::call_create(std::int64_t(_myKeyId.v), Slice(last.data));
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}
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Call::ApplyResult Call::apply(const Block &block) {
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const auto result = tde2e_api::call_apply_block(
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std::int64_t(_id.v),
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Slice(block.data));
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if (!result.is_ok()) {
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const auto error = result.error();
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(void)error;
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}
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return result.is_ok()
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? ApplyResult::Success
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: ApplyResult::BlockSkipped;
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}
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std::vector<uint8_t> Call::encrypt(const std::vector<uint8_t> &data) const {
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const auto result = tde2e_api::call_encrypt(
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std::int64_t(_id.v),
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std::string_view{
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reinterpret_cast<const char*>(data.data()),
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data.size(),
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});
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if (!result.is_ok()) {
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return {};
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}
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const auto &value = result.value();
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const auto start = reinterpret_cast<const uint8_t*>(value.data());
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const auto end = start + value.size();
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return std::vector<uint8_t>{ start, end };
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}
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std::vector<uint8_t> Call::decrypt(const std::vector<uint8_t> &data) const {
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const auto result = tde2e_api::call_decrypt(
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std::int64_t(_id.v),
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std::string_view{
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reinterpret_cast<const char*>(data.data()),
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data.size(),
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});
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if (!result.is_ok()) {
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return {};
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}
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const auto &value = result.value();
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const auto start = reinterpret_cast<const uint8_t*>(value.data());
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const auto end = start + value.size();
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return std::vector<uint8_t>{ start, end };
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}
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} // namespace TdE2E
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