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initial commit 2019-09-07 14:03:22 +04:00 • committed by vvaltman
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tl-utils/lite-utils.cpp Normal file
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/*
This file is part of TON Blockchain Library.
TON Blockchain Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
TON Blockchain Library 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
Copyright 2017-2019 Telegram Systems LLP
*/
#include "tl-utils.hpp"
#include "tl/tl_object_store.h"
#include "auto/tl/lite_api.hpp"
#include "td/utils/tl_storers.h"
#include "td/utils/crypto.h"
#include "crypto/common/bitstring.h"
namespace ton {
td::BufferSlice serialize_tl_object(const lite_api::Object *T, bool boxed, td::BufferSlice &&suffix) {
td::TlStorerCalcLength X;
T->store(X);
auto l = X.get_length() + (boxed ? 4 : 0);
auto len = l + suffix.size();
td::BufferSlice B(len);
td::TlStorerUnsafe Y(B.as_slice().ubegin());
if (boxed) {
Y.store_binary(T->get_id());
}
T->store(Y);
auto S = B.as_slice();
S.remove_prefix(l);
S.copy_from(suffix.as_slice());
suffix.clear();
return B;
}
td::BufferSlice serialize_tl_object(const lite_api::Object *T, bool boxed) {
td::TlStorerCalcLength X;
T->store(X);
auto l = X.get_length() + (boxed ? 4 : 0);
auto len = l;
td::BufferSlice B(len);
td::TlStorerUnsafe Y(B.as_slice().ubegin());
if (boxed) {
Y.store_binary(T->get_id());
}
T->store(Y);
return B;
}
td::BufferSlice serialize_tl_object(const lite_api::Function *T, bool boxed) {
CHECK(boxed);
td::TlStorerCalcLength X;
T->store(X);
auto l = X.get_length();
auto len = l;
td::BufferSlice B(len);
td::TlStorerUnsafe Y(B.as_slice().ubegin());
T->store(Y);
return B;
}
td::BufferSlice serialize_tl_object(const lite_api::Function *T, bool boxed, td::BufferSlice &&suffix) {
CHECK(boxed);
td::TlStorerCalcLength X;
T->store(X);
auto l = X.get_length();
auto len = l + suffix.size();
td::BufferSlice B(len);
td::TlStorerUnsafe Y(B.as_slice().ubegin());
T->store(Y);
auto S = B.as_slice();
S.remove_prefix(l);
S.copy_from(suffix.as_slice());
suffix.clear();
return B;
}
td::UInt256 get_tl_object_sha256(const lite_api::Object *T) {
td::TlStorerCalcLength X;
T->store(X);
auto len = X.get_length() + 4;
td::BufferSlice B(len);
td::TlStorerUnsafe Y(B.as_slice().ubegin());
Y.store_binary(T->get_id());
T->store(Y);
td::UInt256 id256;
td::sha256(B.as_slice(), id256.as_slice());
return id256;
}
td::Bits256 get_tl_object_sha_bits256(const lite_api::Object *T) {
td::TlStorerCalcLength X;
T->store(X);
auto len = X.get_length() + 4;
td::BufferSlice B(len);
td::TlStorerUnsafe Y(B.as_slice().ubegin());
Y.store_binary(T->get_id());
T->store(Y);
td::Bits256 id256;
td::sha256(B.as_slice(), id256.as_slice());
return id256;
}
} // namespace ton