318 lines
8.2 KiB
C++
318 lines
8.2 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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#pragma once
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#include "base/basic_types.h"
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#include "base/match_method.h"
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#include "base/flags.h"
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#include "base/bytes.h"
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#include "base/algorithm.h"
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#include "base/assertion.h"
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#include "tl/tl_basic_types.h"
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#include "tl/tl_boxed.h"
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#include <QtCore/QVector>
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#include <QtCore/QString>
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#include <QtCore/QByteArray>
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#include <range/v3/range/conversion.hpp>
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#include <gsl/gsl>
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using mtpPrime = int32;
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using mtpRequestId = int32;
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using mtpMsgId = uint64;
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using mtpPingId = uint64;
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using mtpBuffer = QVector<mtpPrime>;
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using mtpTypeId = uint32;
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struct NotSingleDataTypePlaceholder {
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};
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namespace MTP {
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// type DcId represents actual data center id, while in most cases
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// we use some shifted ids, like DcId() + X * DCShift
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using DcId = int32;
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using ShiftedDcId = int32;
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constexpr auto kDcShift = ShiftedDcId(10000);
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constexpr auto kConfigDcShift = 0x01;
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constexpr auto kLogoutDcShift = 0x02;
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constexpr auto kUpdaterDcShift = 0x03;
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constexpr auto kExportDcShift = 0x04;
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constexpr auto kExportMediaDcShift = 0x05;
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constexpr auto kGroupCallStreamDcShift = 0x06;
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constexpr auto kStatsDcShift = 0x07;
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constexpr auto kMaxMediaDcCount = 0x10;
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constexpr auto kBaseDownloadDcShift = 0x10;
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constexpr auto kBaseUploadDcShift = 0x20;
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constexpr auto kDestroyKeyStartDcShift = 0x100;
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constexpr DcId BareDcId(ShiftedDcId shiftedDcId) {
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return (shiftedDcId % kDcShift);
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}
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constexpr ShiftedDcId ShiftDcId(DcId dcId, int value) {
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return dcId + kDcShift * value;
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}
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constexpr int GetDcIdShift(ShiftedDcId shiftedDcId) {
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return shiftedDcId / kDcShift;
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}
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} // namespace MTP
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enum {
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// core types
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mtpc_int = tl::id_int,
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mtpc_long = tl::id_long,
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mtpc_int128 = tl::id_int128,
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mtpc_int256 = tl::id_int256,
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mtpc_double = tl::id_double,
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mtpc_string = tl::id_string,
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mtpc_vector = tl::id_vector,
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mtpc_bytes = tl::id_bytes,
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mtpc_flags = tl::id_flags,
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mtpc_flags64 = tl::id_flags64,
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// layers
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mtpc_invokeWithLayer1 = 0x53835315,
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mtpc_invokeWithLayer2 = 0x289dd1f6,
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mtpc_invokeWithLayer3 = 0xb7475268,
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mtpc_invokeWithLayer4 = 0xdea0d430,
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mtpc_invokeWithLayer5 = 0x417a57ae,
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mtpc_invokeWithLayer6 = 0x3a64d54d,
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mtpc_invokeWithLayer7 = 0xa5be56d3,
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mtpc_invokeWithLayer8 = 0xe9abd9fd,
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mtpc_invokeWithLayer9 = 0x76715a63,
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mtpc_invokeWithLayer10 = 0x39620c41,
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mtpc_invokeWithLayer11 = 0xa6b88fdf,
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mtpc_invokeWithLayer12 = 0xdda60d3c,
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mtpc_invokeWithLayer13 = 0x427c8ea2,
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mtpc_invokeWithLayer14 = 0x2b9b08fa,
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mtpc_invokeWithLayer15 = 0xb4418b64,
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mtpc_invokeWithLayer16 = 0xcf5f0987,
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mtpc_invokeWithLayer17 = 0x50858a19,
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mtpc_invokeWithLayer18 = 0x1c900537,
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// manually parsed
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mtpc_rpc_result = 0xf35c6d01,
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mtpc_msg_container = 0x73f1f8dc,
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// mtpc_msg_copy = 0xe06046b2,
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mtpc_gzip_packed = 0x3072cfa1
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};
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static const mtpTypeId mtpc_core_message = -1; // undefined type, but is used
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static const mtpTypeId mtpLayers[] = {
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mtpTypeId(mtpc_invokeWithLayer1),
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mtpTypeId(mtpc_invokeWithLayer2),
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mtpTypeId(mtpc_invokeWithLayer3),
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mtpTypeId(mtpc_invokeWithLayer4),
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mtpTypeId(mtpc_invokeWithLayer5),
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mtpTypeId(mtpc_invokeWithLayer6),
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mtpTypeId(mtpc_invokeWithLayer7),
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mtpTypeId(mtpc_invokeWithLayer8),
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mtpTypeId(mtpc_invokeWithLayer9),
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mtpTypeId(mtpc_invokeWithLayer10),
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mtpTypeId(mtpc_invokeWithLayer11),
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mtpTypeId(mtpc_invokeWithLayer12),
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mtpTypeId(mtpc_invokeWithLayer13),
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mtpTypeId(mtpc_invokeWithLayer14),
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mtpTypeId(mtpc_invokeWithLayer15),
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mtpTypeId(mtpc_invokeWithLayer16),
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mtpTypeId(mtpc_invokeWithLayer17),
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mtpTypeId(mtpc_invokeWithLayer18),
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};
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static const uint32 mtpLayerMaxSingle = sizeof(mtpLayers) / sizeof(mtpLayers[0]);
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using MTPint = tl::int_type;
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inline MTPint MTP_int(int32 v) {
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return tl::make_int(v);
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}
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template <typename Flags>
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using MTPflags = tl::flags_type<Flags>;
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template <typename T>
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inline MTPflags<base::flags<T>> MTP_flags(base::flags<T> v) {
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return tl::make_flags(v);
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}
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template <typename T, typename = std::enable_if_t<!std::is_same<T, int>::value>>
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inline MTPflags<base::flags<T>> MTP_flags(T v) {
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return tl::make_flags(v);
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}
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inline tl::details::zero_flags_helper MTP_flags(void(tl::details::zero_flags_helper::*)()) {
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return tl::details::zero_flags_helper();
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}
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using MTPlong = tl::long_type;
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inline MTPlong MTP_long(uint64 v) {
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return tl::make_long(v);
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}
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using MTPint128 = tl::int128_type;
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inline MTPint128 MTP_int128(uint64 l, uint64 h) {
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return tl::make_int128(l, h);
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}
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using MTPint256 = tl::int256_type;
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inline MTPint256 MTP_int256(const MTPint128 &l, const MTPint128 &h) {
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return tl::make_int256(l, h);
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}
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using MTPdouble = tl::double_type;
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inline MTPdouble MTP_double(float64 v) {
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return tl::make_double(v);
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}
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using MTPstring = tl::string_type;
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using MTPbytes = tl::bytes_type;
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inline MTPstring MTP_string(const std::string &v) {
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return tl::make_string(v);
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}
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inline MTPstring MTP_string(const QString &v) {
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return tl::make_string(v);
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}
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inline MTPstring MTP_string(const char *v) {
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return tl::make_string(v);
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}
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inline MTPstring MTP_string() {
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return tl::make_string();
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}
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MTPstring MTP_string(const QByteArray &v) = delete;
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inline MTPbytes MTP_bytes(const QByteArray &v) {
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return tl::make_bytes(v);
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}
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inline MTPbytes MTP_bytes(QByteArray &&v) {
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return tl::make_bytes(std::move(v));
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}
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inline MTPbytes MTP_bytes() {
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return tl::make_bytes();
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}
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inline MTPbytes MTP_bytes(bytes::const_span buffer) {
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return tl::make_bytes(buffer);
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}
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inline MTPbytes MTP_bytes(const bytes::vector &buffer) {
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return tl::make_bytes(buffer);
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}
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inline QString qs(const MTPstring &v) {
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return tl::utf16(v);
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}
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inline QString qs(const QByteArray &v) {
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return tl::utf16(v);
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}
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inline QByteArray qba(const MTPstring &v) {
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return tl::utf8(v);
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}
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template <typename T>
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using MTPvector = tl::vector_type<T>;
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template <typename T>
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inline MTPvector<T> MTP_vector(uint32 count) {
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return tl::make_vector<T>(count);
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}
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template <typename T>
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inline MTPvector<T> MTP_vector(uint32 count, const T &value) {
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return tl::make_vector<T>(count, value);
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}
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template <typename T>
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inline MTPvector<T> MTP_vector(const QVector<T> &v) {
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return tl::make_vector<T>(v);
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}
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template <typename T>
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inline MTPvector<T> MTP_vector(QVector<T> &&v) {
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return tl::make_vector<T>(std::move(v));
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}
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template <typename T>
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inline MTPvector<T> MTP_vector() {
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return tl::make_vector<T>();
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}
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// ranges::to<QVector> doesn't work with Qt 6 in Clang,
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// because QVector is a type alias for QList there.
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template <typename Rng>
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inline auto MTP_vector_from_range(Rng &&range) {
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using T = std::remove_cvref_t<decltype(*ranges::begin(range))>;
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#if QT_VERSION >= QT_VERSION_CHECK(6, 0 ,0)
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return MTP_vector<T>(std::forward<Rng>(range) | ranges::to<QList>());
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#else // QT_VERSION >= 6.0
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return MTP_vector<T>(std::forward<Rng>(range) | ranges::to<QVector>());
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#endif // QT_VERSION < 6.0
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}
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namespace tl {
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template <typename Accumulator>
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struct Writer;
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template <typename Prime>
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struct Reader;
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template <>
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struct Writer<mtpBuffer> {
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static void PutBytes(mtpBuffer &to, const void *bytes, uint32 count) {
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constexpr auto kPrime = sizeof(uint32);
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const auto primes = (count / kPrime) + (count % kPrime ? 1 : 0);
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const auto size = to.size();
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to.resize(size + primes);
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memcpy(to.data() + size, bytes, count);
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}
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static void Put(mtpBuffer &to, uint32 value) {
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to.push_back(mtpPrime(value));
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}
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};
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template <>
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struct Reader<mtpPrime> final {
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[[nodiscard]] static bool HasBytes(
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uint32 count,
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const mtpPrime *from,
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const mtpPrime *end) {
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constexpr auto kPrime = sizeof(uint32);
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const auto primes = (count / kPrime) + (count % kPrime ? 1 : 0);
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return (end - from) >= primes;
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}
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static void GetBytes(
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void *bytes,
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uint32 count,
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const mtpPrime *&from,
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const mtpPrime *end) {
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Expects(HasBytes(count, from, end));
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constexpr auto kPrime = sizeof(uint32);
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const auto primes = (count / kPrime) + (count % kPrime ? 1 : 0);
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memcpy(bytes, from, count);
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from += primes;
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}
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[[nodiscard]] static bool Has(
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uint32 primes,
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const mtpPrime *from,
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const mtpPrime *end) {
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return (end - from) >= primes;
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}
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[[nodiscard]] static uint32 Get(const mtpPrime *&from, const mtpPrime *end) {
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Expects(from < end);
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return uint32(*from++);
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}
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};
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} // namespace tl
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