d07c172ec8
GitOrigin-RevId: e547cedd27afebc8023afaca5ef0a7af6e2f3075
40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/mtproto/PacketStorer.h"
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#include "td/utils/Random.h"
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namespace td {
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namespace mtproto {
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class NoCryptoImpl {
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public:
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NoCryptoImpl(uint64 message_id, const Storer &data, bool need_pad = true) : message_id(message_id), data(data) {
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if (need_pad) {
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auto data_size = data.size();
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auto pad_size = (data_size + 15) / 16 * 16 - data_size;
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pad_size += 16 * (static_cast<size_t>(Random::secure_int32()) % 16);
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pad_.resize(pad_size);
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Random::secure_bytes(pad_);
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}
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}
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template <class T>
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void do_store(T &storer) const {
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storer.store_binary(message_id);
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storer.store_binary(static_cast<int32>(data.size() + pad_.size()));
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storer.store_storer(data);
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storer.store_slice(pad_);
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}
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private:
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uint64 message_id;
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const Storer &data;
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std::string pad_;
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};
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} // namespace mtproto
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} // namespace td
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