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/*
This file is part of Telegram Desktop ,
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the official desktop version of Telegram messaging app , see https : //telegram.org
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Telegram Desktop is free software : you can redistribute it and / or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation , either version 3 of the License , or
( at your option ) any later version .
It 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 General Public License for more details .
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In addition , as a special exception , the copyright holders give permission
to link the code of portions of this program with the OpenSSL library .
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Full license : https : //github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright ( c ) 2014 - 2017 John Preston , https : //desktop.telegram.org
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*/
# pragma once
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# include "core/basic_types.h"
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namespace MTP {
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// type DcId represents actual data center id, while in most cases
// 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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} // namespace MTP
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using mtpPrime = int32 ;
using mtpRequestId = int32 ;
using mtpMsgId = uint64 ;
using mtpPingId = uint64 ;
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using mtpBuffer = QVector < mtpPrime > ;
using mtpTypeId = uint32 ;
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class mtpRequestData ;
class mtpRequest : public QSharedPointer < mtpRequestData > {
public :
mtpRequest ( ) {
}
explicit mtpRequest ( mtpRequestData * ptr ) : QSharedPointer < mtpRequestData > ( ptr ) {
}
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uint32 innerLength ( ) const ;
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void write ( mtpBuffer & to ) const ;
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using ResponseType = void ; // don't know real response type =(
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} ;
class mtpRequestData : public mtpBuffer {
public :
// in toSend: = 0 - must send in container, > 0 - can send without container
// in haveSent: = 0 - container with msgIds, > 0 - when was sent
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TimeMs msDate ;
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mtpRequestId requestId ;
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mtpRequest after ;
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bool needsLayer ;
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mtpRequestData ( bool /* sure*/ ) : msDate ( 0 ) , requestId ( 0 ) , needsLayer ( false ) {
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}
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static mtpRequest prepare ( uint32 requestSize , uint32 maxSize = 0 ) {
if ( ! maxSize ) maxSize = requestSize ;
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mtpRequest result ( new mtpRequestData ( true ) ) ;
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result - > reserve ( 8 + maxSize + _padding ( maxSize ) ) ; // 2: salt, 2: session_id, 2: msg_id, 1: seq_no, 1: message_length
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result - > resize ( 7 ) ;
result - > push_back ( requestSize < < 2 ) ;
return result ;
}
static void padding ( mtpRequest & request ) {
if ( request - > size ( ) < 9 ) return ;
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uint32 requestSize = ( request . innerLength ( ) > > 2 ) , padding = _padding ( requestSize ) , fullSize = 8 + requestSize + padding ; // 2: salt, 2: session_id, 2: msg_id, 1: seq_no, 1: message_length
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if ( uint32 ( request - > size ( ) ) ! = fullSize ) {
request - > resize ( fullSize ) ;
if ( padding ) {
memset_rand ( request - > data ( ) + ( fullSize - padding ) , padding * sizeof ( mtpPrime ) ) ;
}
}
}
static uint32 messageSize ( const mtpRequest & request ) {
if ( request - > size ( ) < 9 ) return 0 ;
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return 4 + ( request . innerLength ( ) > > 2 ) ; // 2: msg_id, 1: seq_no, q: message_length
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}
static bool isSentContainer ( const mtpRequest & request ) ; // "request-like" wrap for msgIds vector
static bool isStateRequest ( const mtpRequest & request ) ;
static bool needAck ( const mtpRequest & request ) ;
static bool needAckByType ( mtpTypeId type ) ;
private :
static uint32 _padding ( uint32 requestSize ) {
return ( ( 8 + requestSize ) & 0x03 ) ? ( 4 - ( ( 8 + requestSize ) & 0x03 ) ) : 0 ;
}
} ;
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inline uint32 mtpRequest : : innerLength ( ) const { // for template MTP requests and MTPBoxed instanciation
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mtpRequestData * value = data ( ) ;
if ( ! value | | value - > size ( ) < 9 ) return 0 ;
return value - > at ( 7 ) ;
}
inline void mtpRequest : : write ( mtpBuffer & to ) const {
mtpRequestData * value = data ( ) ;
if ( ! value | | value - > size ( ) < 9 ) return ;
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uint32 was = to . size ( ) , s = innerLength ( ) / sizeof ( mtpPrime ) ;
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to . resize ( was + s ) ;
memcpy ( to . data ( ) + was , value - > constData ( ) + 8 , s * sizeof ( mtpPrime ) ) ;
}
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using mtpPreRequestMap = QMap < mtpRequestId , mtpRequest > ;
using mtpRequestMap = QMap < mtpMsgId , mtpRequest > ;
using mtpMsgIdsSet = QMap < mtpMsgId , bool > ;
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class mtpRequestIdsMap : public QMap < mtpMsgId , mtpRequestId > {
public :
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using ParentType = QMap < mtpMsgId , mtpRequestId > ;
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mtpMsgId min ( ) const {
return size ( ) ? cbegin ( ) . key ( ) : 0 ;
}
mtpMsgId max ( ) const {
ParentType : : const_iterator e ( cend ( ) ) ;
return size ( ) ? ( - - e ) . key ( ) : 0 ;
}
} ;
class mtpErrorUnexpected : public Exception {
public :
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mtpErrorUnexpected ( mtpTypeId typeId , const QString & type ) : Exception ( QString ( " MTP Unexpected type id #%1 read in %2 " ) . arg ( uint32 ( typeId ) , 0 , 16 ) . arg ( type ) , false ) { // maybe api changed?..
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}
} ;
class mtpErrorInsufficient : public Exception {
public :
mtpErrorInsufficient ( ) : Exception ( " MTP Insufficient bytes in input buffer " ) {
}
} ;
class mtpErrorBadTypeId : public Exception {
public :
mtpErrorBadTypeId ( mtpTypeId typeId , const QString & type ) : Exception ( QString ( " MTP Bad type id %1 passed to constructor of %2 " ) . arg ( typeId ) . arg ( type ) ) {
}
} ;
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namespace MTP {
namespace internal {
class TypeData {
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public :
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TypeData ( ) = default ;
TypeData ( const TypeData & other ) = delete ;
TypeData ( TypeData & & other ) = delete ;
TypeData & operator = ( const TypeData & other ) = delete ;
TypeData & operator = ( TypeData & & other ) = delete ;
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virtual ~ TypeData ( ) {
}
private :
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void incrementCounter ( ) const {
_counter . ref ( ) ;
}
bool decrementCounter ( ) const {
return _counter . deref ( ) ;
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}
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friend class TypeDataOwner ;
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mutable QAtomicInt _counter = { 1 } ;
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} ;
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class TypeDataOwner {
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public :
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TypeDataOwner ( TypeDataOwner & & other ) : _data ( base : : take ( other . _data ) ) {
}
TypeDataOwner ( const TypeDataOwner & other ) : _data ( other . _data ) {
incrementCounter ( ) ;
}
TypeDataOwner & operator = ( TypeDataOwner & & other ) {
if ( other . _data ! = _data ) {
decrementCounter ( ) ;
_data = base : : take ( other . _data ) ;
}
return * this ;
}
TypeDataOwner & operator = ( const TypeDataOwner & other ) {
if ( other . _data ! = _data ) {
setData ( other . _data ) ;
incrementCounter ( ) ;
}
return * this ;
}
~ TypeDataOwner ( ) {
decrementCounter ( ) ;
}
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protected :
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TypeDataOwner ( ) = default ;
TypeDataOwner ( const TypeData * data ) : _data ( data ) {
}
void setData ( const TypeData * data ) {
decrementCounter ( ) ;
_data = data ;
}
template < typename DataType >
const DataType & queryData ( ) const {
// Unsafe cast, type should be checked by the caller.
t_assert ( _data ! = nullptr ) ;
return static_cast < const DataType & > ( * _data ) ;
}
private :
void incrementCounter ( ) {
if ( _data ) {
_data - > incrementCounter ( ) ;
}
}
void decrementCounter ( ) {
if ( _data & & ! _data - > decrementCounter ( ) ) {
delete base : : take ( _data ) ;
}
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}
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const TypeData * _data = nullptr ;
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} ;
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} // namespace internal
} // namespace MTP
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enum {
// core types
mtpc_int = 0xa8509bda ,
mtpc_long = 0x22076cba ,
mtpc_int128 = 0x4bb5362b ,
mtpc_int256 = 0x929c32f ,
mtpc_double = 0x2210c154 ,
mtpc_string = 0xb5286e24 ,
mtpc_vector = 0x1cb5c415 ,
// layers
mtpc_invokeWithLayer1 = 0x53835315 ,
mtpc_invokeWithLayer2 = 0x289dd1f6 ,
mtpc_invokeWithLayer3 = 0xb7475268 ,
mtpc_invokeWithLayer4 = 0xdea0d430 ,
mtpc_invokeWithLayer5 = 0x417a57ae ,
mtpc_invokeWithLayer6 = 0x3a64d54d ,
mtpc_invokeWithLayer7 = 0xa5be56d3 ,
mtpc_invokeWithLayer8 = 0xe9abd9fd ,
mtpc_invokeWithLayer9 = 0x76715a63 ,
mtpc_invokeWithLayer10 = 0x39620c41 ,
mtpc_invokeWithLayer11 = 0xa6b88fdf ,
mtpc_invokeWithLayer12 = 0xdda60d3c ,
mtpc_invokeWithLayer13 = 0x427c8ea2 ,
mtpc_invokeWithLayer14 = 0x2b9b08fa ,
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mtpc_invokeWithLayer15 = 0xb4418b64 ,
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mtpc_invokeWithLayer16 = 0xcf5f0987 ,
mtpc_invokeWithLayer17 = 0x50858a19 ,
mtpc_invokeWithLayer18 = 0x1c900537 ,
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// manually parsed
mtpc_rpc_result = 0xf35c6d01 ,
mtpc_msg_container = 0x73f1f8dc ,
// mtpc_msg_copy = 0xe06046b2,
mtpc_gzip_packed = 0x3072cfa1
} ;
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static const mtpTypeId mtpc_bytes = mtpc_string ;
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static const mtpTypeId mtpc_flags = mtpc_int ;
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static const mtpTypeId mtpc_core_message = - 1 ; // undefined type, but is used
static const mtpTypeId mtpLayers [ ] = {
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mtpTypeId ( mtpc_invokeWithLayer1 ) ,
mtpTypeId ( mtpc_invokeWithLayer2 ) ,
mtpTypeId ( mtpc_invokeWithLayer3 ) ,
mtpTypeId ( mtpc_invokeWithLayer4 ) ,
mtpTypeId ( mtpc_invokeWithLayer5 ) ,
mtpTypeId ( mtpc_invokeWithLayer6 ) ,
mtpTypeId ( mtpc_invokeWithLayer7 ) ,
mtpTypeId ( mtpc_invokeWithLayer8 ) ,
mtpTypeId ( mtpc_invokeWithLayer9 ) ,
mtpTypeId ( mtpc_invokeWithLayer10 ) ,
mtpTypeId ( mtpc_invokeWithLayer11 ) ,
mtpTypeId ( mtpc_invokeWithLayer12 ) ,
mtpTypeId ( mtpc_invokeWithLayer13 ) ,
mtpTypeId ( mtpc_invokeWithLayer14 ) ,
mtpTypeId ( mtpc_invokeWithLayer15 ) ,
mtpTypeId ( mtpc_invokeWithLayer16 ) ,
mtpTypeId ( mtpc_invokeWithLayer17 ) ,
mtpTypeId ( mtpc_invokeWithLayer18 ) ,
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} ;
static const uint32 mtpLayerMaxSingle = sizeof ( mtpLayers ) / sizeof ( mtpLayers [ 0 ] ) ;
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template < typename bareT >
class MTPBoxed : public bareT {
public :
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MTPBoxed ( ) = default ;
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MTPBoxed ( const bareT & v ) : bareT ( v ) {
}
MTPBoxed ( const MTPBoxed < bareT > & v ) : bareT ( v ) {
}
MTPBoxed < bareT > & operator = ( const bareT & v ) {
* ( ( bareT * ) this ) = v ;
return * this ;
}
MTPBoxed < bareT > & operator = ( const MTPBoxed < bareT > & v ) {
* ( ( bareT * ) this ) = v ;
return * this ;
}
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uint32 innerLength ( ) const {
return sizeof ( mtpTypeId ) + bareT : : innerLength ( ) ;
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}
void read ( const mtpPrime * & from , const mtpPrime * end , mtpTypeId cons = 0 ) {
if ( from + 1 > end ) throw mtpErrorInsufficient ( ) ;
cons = ( mtpTypeId ) * ( from + + ) ;
bareT : : read ( from , end , cons ) ;
}
void write ( mtpBuffer & to ) const {
to . push_back ( bareT : : type ( ) ) ;
bareT : : write ( to ) ;
}
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using Unboxed = bareT ;
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} ;
template < typename T >
class MTPBoxed < MTPBoxed < T > > {
typename T : : CantMakeBoxedBoxedType v ;
} ;
class MTPint {
public :
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int32 v = 0 ;
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MTPint ( ) = default ;
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uint32 innerLength ( ) const {
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return sizeof ( int32 ) ;
}
mtpTypeId type ( ) const {
return mtpc_int ;
}
void read ( const mtpPrime * & from , const mtpPrime * end , mtpTypeId cons = mtpc_int ) {
if ( from + 1 > end ) throw mtpErrorInsufficient ( ) ;
if ( cons ! = mtpc_int ) throw mtpErrorUnexpected ( cons , " MTPint " ) ;
v = ( int32 ) * ( from + + ) ;
}
void write ( mtpBuffer & to ) const {
to . push_back ( ( mtpPrime ) v ) ;
}
private :
explicit MTPint ( int32 val ) : v ( val ) {
}
friend MTPint MTP_int ( int32 v ) ;
} ;
inline MTPint MTP_int ( int32 v ) {
return MTPint ( v ) ;
}
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using MTPInt = MTPBoxed < MTPint > ;
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namespace internal {
struct ZeroFlagsHelper {
} ;
} // namespace internal
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template < typename Flags >
class MTPflags {
public :
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Flags v = Flags ( 0 ) ;
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static_assert ( sizeof ( Flags ) = = sizeof ( int32 ) , " MTPflags are allowed only wrapping int32 flag types! " ) ;
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MTPflags ( ) = default ;
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MTPflags ( internal : : ZeroFlagsHelper helper ) {
}
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uint32 innerLength ( ) const {
return sizeof ( Flags ) ;
}
mtpTypeId type ( ) const {
return mtpc_flags ;
}
void read ( const mtpPrime * & from , const mtpPrime * end , mtpTypeId cons = mtpc_flags ) {
if ( from + 1 > end ) throw mtpErrorInsufficient ( ) ;
if ( cons ! = mtpc_flags ) throw mtpErrorUnexpected ( cons , " MTPflags " ) ;
v = static_cast < Flags > ( * ( from + + ) ) ;
}
void write ( mtpBuffer & to ) const {
to . push_back ( static_cast < mtpPrime > ( v ) ) ;
}
private :
explicit MTPflags ( Flags val ) : v ( val ) {
}
template < typename T >
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friend MTPflags < QFlags < T > > MTP_flags ( QFlags < T > v ) ;
template < typename T , typename >
friend MTPflags < QFlags < T > > MTP_flags ( T v ) ;
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} ;
template < typename T >
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inline MTPflags < QFlags < T > > MTP_flags ( QFlags < T > v ) {
return MTPflags < QFlags < T > > ( v ) ;
}
template < typename T , typename = std : : enable_if_t < ! std : : is_same < T , int > : : value > >
inline MTPflags < QFlags < T > > MTP_flags ( T v ) {
return MTPflags < QFlags < T > > ( v ) ;
}
inline internal : : ZeroFlagsHelper MTP_flags ( void ( internal : : ZeroFlagsHelper : : * ) ( ) ) {
return internal : : ZeroFlagsHelper ( ) ;
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}
template < typename Flags >
using MTPFlags = MTPBoxed < MTPflags < Flags > > ;
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inline bool operator = = ( const MTPint & a , const MTPint & b ) {
return a . v = = b . v ;
}
inline bool operator ! = ( const MTPint & a , const MTPint & b ) {
return a . v ! = b . v ;
}
class MTPlong {
public :
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uint64 v = 0 ;
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MTPlong ( ) = default ;
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uint32 innerLength ( ) const {
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return sizeof ( uint64 ) ;
}
mtpTypeId type ( ) const {
return mtpc_long ;
}
void read ( const mtpPrime * & from , const mtpPrime * end , mtpTypeId cons = mtpc_long ) {
if ( from + 2 > end ) throw mtpErrorInsufficient ( ) ;
if ( cons ! = mtpc_long ) throw mtpErrorUnexpected ( cons , " MTPlong " ) ;
v = ( uint64 ) ( ( ( uint32 * ) from ) [ 0 ] ) | ( ( uint64 ) ( ( ( uint32 * ) from ) [ 1 ] ) < < 32 ) ;
from + = 2 ;
}
void write ( mtpBuffer & to ) const {
to . push_back ( ( mtpPrime ) ( v & 0xFFFFFFFFL ) ) ;
to . push_back ( ( mtpPrime ) ( v > > 32 ) ) ;
}
private :
explicit MTPlong ( uint64 val ) : v ( val ) {
}
friend MTPlong MTP_long ( uint64 v ) ;
} ;
inline MTPlong MTP_long ( uint64 v ) {
return MTPlong ( v ) ;
}
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using MTPLong = MTPBoxed < MTPlong > ;
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inline bool operator = = ( const MTPlong & a , const MTPlong & b ) {
return a . v = = b . v ;
}
inline bool operator ! = ( const MTPlong & a , const MTPlong & b ) {
return a . v ! = b . v ;
}
class MTPint128 {
public :
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uint64 l = 0 ;
uint64 h = 0 ;
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MTPint128 ( ) = default ;
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uint32 innerLength ( ) const {
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return sizeof ( uint64 ) + sizeof ( uint64 ) ;
}
mtpTypeId type ( ) const {
return mtpc_int128 ;
}
void read ( const mtpPrime * & from , const mtpPrime * end , mtpTypeId cons = mtpc_int128 ) {
if ( from + 4 > end ) throw mtpErrorInsufficient ( ) ;
if ( cons ! = mtpc_int128 ) throw mtpErrorUnexpected ( cons , " MTPint128 " ) ;
l = ( uint64 ) ( ( ( uint32 * ) from ) [ 0 ] ) | ( ( uint64 ) ( ( ( uint32 * ) from ) [ 1 ] ) < < 32 ) ;
h = ( uint64 ) ( ( ( uint32 * ) from ) [ 2 ] ) | ( ( uint64 ) ( ( ( uint32 * ) from ) [ 3 ] ) < < 32 ) ;
from + = 4 ;
}
void write ( mtpBuffer & to ) const {
to . push_back ( ( mtpPrime ) ( l & 0xFFFFFFFFL ) ) ;
to . push_back ( ( mtpPrime ) ( l > > 32 ) ) ;
to . push_back ( ( mtpPrime ) ( h & 0xFFFFFFFFL ) ) ;
to . push_back ( ( mtpPrime ) ( h > > 32 ) ) ;
}
private :
explicit MTPint128 ( uint64 low , uint64 high ) : l ( low ) , h ( high ) {
}
friend MTPint128 MTP_int128 ( uint64 l , uint64 h ) ;
} ;
inline MTPint128 MTP_int128 ( uint64 l , uint64 h ) {
return MTPint128 ( l , h ) ;
}
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using MTPInt128 = MTPBoxed < MTPint128 > ;
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inline bool operator = = ( const MTPint128 & a , const MTPint128 & b ) {
return a . l = = b . l & & a . h = = b . h ;
}
inline bool operator ! = ( const MTPint128 & a , const MTPint128 & b ) {
return a . l ! = b . l | | a . h ! = b . h ;
}
class MTPint256 {
public :
MTPint128 l ;
MTPint128 h ;
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MTPint256 ( ) = default ;
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uint32 innerLength ( ) const {
return l . innerLength ( ) + h . innerLength ( ) ;
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}
mtpTypeId type ( ) const {
return mtpc_int256 ;
}
void read ( const mtpPrime * & from , const mtpPrime * end , mtpTypeId cons = mtpc_int256 ) {
if ( cons ! = mtpc_int256 ) throw mtpErrorUnexpected ( cons , " MTPint256 " ) ;
l . read ( from , end ) ;
h . read ( from , end ) ;
}
void write ( mtpBuffer & to ) const {
l . write ( to ) ;
h . write ( to ) ;
}
private :
explicit MTPint256 ( MTPint128 low , MTPint128 high ) : l ( low ) , h ( high ) {
}
friend MTPint256 MTP_int256 ( const MTPint128 & l , const MTPint128 & h ) ;
} ;
inline MTPint256 MTP_int256 ( const MTPint128 & l , const MTPint128 & h ) {
return MTPint256 ( l , h ) ;
}
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using MTPInt256 = MTPBoxed < MTPint256 > ;
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inline bool operator = = ( const MTPint256 & a , const MTPint256 & b ) {
return a . l = = b . l & & a . h = = b . h ;
}
inline bool operator ! = ( const MTPint256 & a , const MTPint256 & b ) {
return a . l ! = b . l | | a . h ! = b . h ;
}
class MTPdouble {
public :
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float64 v = 0. ;
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MTPdouble ( ) = default ;
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uint32 innerLength ( ) const {
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return sizeof ( float64 ) ;
}
mtpTypeId type ( ) const {
return mtpc_double ;
}
void read ( const mtpPrime * & from , const mtpPrime * end , mtpTypeId cons = mtpc_double ) {
if ( from + 2 > end ) throw mtpErrorInsufficient ( ) ;
if ( cons ! = mtpc_double ) throw mtpErrorUnexpected ( cons , " MTPdouble " ) ;
* ( uint64 * ) ( & v ) = ( uint64 ) ( ( ( uint32 * ) from ) [ 0 ] ) | ( ( uint64 ) ( ( ( uint32 * ) from ) [ 1 ] ) < < 32 ) ;
from + = 2 ;
}
void write ( mtpBuffer & to ) const {
uint64 iv = * ( uint64 * ) ( & v ) ;
to . push_back ( ( mtpPrime ) ( iv & 0xFFFFFFFFL ) ) ;
to . push_back ( ( mtpPrime ) ( iv > > 32 ) ) ;
}
private :
explicit MTPdouble ( float64 val ) : v ( val ) {
}
friend MTPdouble MTP_double ( float64 v ) ;
} ;
inline MTPdouble MTP_double ( float64 v ) {
return MTPdouble ( v ) ;
}
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using MTPDouble = MTPBoxed < MTPdouble > ;
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inline bool operator = = ( const MTPdouble & a , const MTPdouble & b ) {
return a . v = = b . v ;
}
inline bool operator ! = ( const MTPdouble & a , const MTPdouble & b ) {
return a . v ! = b . v ;
}
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class MTPstring ;
using MTPbytes = MTPstring ;
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class MTPstring {
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public :
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MTPstring ( ) = default ;
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uint32 innerLength ( ) const {
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uint32 l = v . length ( ) ;
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if ( l < 254 ) {
l + = 1 ;
} else {
l + = 4 ;
}
uint32 d = l & 0x03 ;
if ( d ) l + = ( 4 - d ) ;
return l ;
}
mtpTypeId type ( ) const {
return mtpc_string ;
}
void read ( const mtpPrime * & from , const mtpPrime * end , mtpTypeId cons = mtpc_string ) {
if ( from + 1 > end ) throw mtpErrorInsufficient ( ) ;
if ( cons ! = mtpc_string ) throw mtpErrorUnexpected ( cons , " MTPstring " ) ;
uint32 l ;
const uchar * buf = ( const uchar * ) from ;
if ( buf [ 0 ] = = 254 ) {
l = ( uint32 ) buf [ 1 ] + ( ( uint32 ) buf [ 2 ] < < 8 ) + ( ( uint32 ) buf [ 3 ] < < 16 ) ;
buf + = 4 ;
from + = ( ( l + 4 ) > > 2 ) + ( ( ( l + 4 ) & 0x03 ) ? 1 : 0 ) ;
} else {
l = ( uint32 ) buf [ 0 ] ;
+ + buf ;
from + = ( ( l + 1 ) > > 2 ) + ( ( ( l + 1 ) & 0x03 ) ? 1 : 0 ) ;
}
if ( from > end ) throw mtpErrorInsufficient ( ) ;
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v = QByteArray ( reinterpret_cast < const char * > ( buf ) , l ) ;
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}
void write ( mtpBuffer & to ) const {
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uint32 l = v . length ( ) , s = l + ( ( l < 254 ) ? 1 : 4 ) , was = to . size ( ) ;
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if ( s & 0x03 ) {
s + = 4 ;
}
s > > = 2 ;
to . resize ( was + s ) ;
char * buf = ( char * ) & to [ was ] ;
if ( l < 254 ) {
uchar sl = ( uchar ) l ;
* ( buf + + ) = * ( char * ) ( & sl ) ;
} else {
* ( buf + + ) = ( char ) 254 ;
* ( buf + + ) = ( char ) ( l & 0xFF ) ;
* ( buf + + ) = ( char ) ( ( l > > 8 ) & 0xFF ) ;
* ( buf + + ) = ( char ) ( ( l > > 16 ) & 0xFF ) ;
}
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memcpy ( buf , v . constData ( ) , l ) ;
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}
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QByteArray v ;
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private :
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explicit MTPstring ( QByteArray & & data ) : v ( std : : move ( data ) ) {
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}
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friend MTPstring MTP_string ( const std : : string & v ) ;
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friend MTPstring MTP_string ( const QString & v ) ;
friend MTPstring MTP_string ( const char * v ) ;
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friend MTPbytes MTP_bytes ( const QByteArray & v ) ;
friend MTPbytes MTP_bytes ( QByteArray & & v ) ;
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} ;
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using MTPString = MTPBoxed < MTPstring > ;
using MTPBytes = MTPBoxed < MTPbytes > ;
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inline MTPstring MTP_string ( const std : : string & v ) {
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return MTPstring ( QByteArray ( v . data ( ) , v . size ( ) ) ) ;
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}
inline MTPstring MTP_string ( const QString & v ) {
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return MTPstring ( v . toUtf8 ( ) ) ;
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}
inline MTPstring MTP_string ( const char * v ) {
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return MTPstring ( QByteArray ( v , strlen ( v ) ) ) ;
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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 MTPbytes ( QByteArray ( v ) ) ;
}
inline MTPbytes MTP_bytes ( QByteArray & & v ) {
return MTPbytes ( std : : move ( v ) ) ;
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}
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inline MTPbytes MTP_bytes ( base : : const_byte_span bytes ) {
return MTP_bytes ( QByteArray ( reinterpret_cast < const char * > ( bytes . data ( ) ) , bytes . size ( ) ) ) ;
}
inline MTPbytes MTP_bytes ( const std : : vector < gsl : : byte > & bytes ) {
return MTP_bytes ( gsl : : make_span ( bytes ) ) ;
}
template < size_t N >
inline MTPbytes MTP_bytes ( const std : : array < gsl : : byte , N > & bytes ) {
return MTP_bytes ( gsl : : make_span ( bytes ) ) ;
}
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inline bool operator = = ( const MTPstring & a , const MTPstring & b ) {
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return a . v = = b . v ;
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}
inline bool operator ! = ( const MTPstring & a , const MTPstring & b ) {
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return a . v ! = b . v ;
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}
inline QString qs ( const MTPstring & v ) {
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return QString : : fromUtf8 ( v . v ) ;
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}
inline QByteArray qba ( const MTPstring & v ) {
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return v . v ;
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}
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inline base : : const_byte_span bytesFromMTP ( const MTPbytes & v ) {
return gsl : : as_bytes ( gsl : : make_span ( v . v ) ) ;
}
inline std : : vector < gsl : : byte > byteVectorFromMTP ( const MTPbytes & v ) {
auto bytes = bytesFromMTP ( v ) ;
return std : : vector < gsl : : byte > ( bytes . cbegin ( ) , bytes . cend ( ) ) ;
}
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template < typename T >
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class MTPvector {
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public :
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MTPvector ( ) = default ;
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uint32 innerLength ( ) const {
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uint32 result ( sizeof ( uint32 ) ) ;
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for_const ( auto & item , v ) {
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result + = item . innerLength ( ) ;
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}
return result ;
}
mtpTypeId type ( ) const {
return mtpc_vector ;
}
void read ( const mtpPrime * & from , const mtpPrime * end , mtpTypeId cons = mtpc_vector ) {
if ( from + 1 > end ) throw mtpErrorInsufficient ( ) ;
if ( cons ! = mtpc_vector ) throw mtpErrorUnexpected ( cons , " MTPvector " ) ;
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auto count = static_cast < uint32 > ( * ( from + + ) ) ;
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auto vector = QVector < T > ( count , T ( ) ) ;
for ( auto & item : vector ) {
item . read ( from , end ) ;
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}
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v = std : : move ( vector ) ;
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}
void write ( mtpBuffer & to ) const {
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to . push_back ( v . size ( ) ) ;
for_const ( auto & item , v ) {
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item . write ( to ) ;
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}
}
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QVector < T > v ;
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private :
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explicit MTPvector ( QVector < T > & & data ) : v ( std : : move ( data ) ) {
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}
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template < typename U >
friend MTPvector < U > MTP_vector ( uint32 count ) ;
template < typename U >
friend MTPvector < U > MTP_vector ( uint32 count , const U & value ) ;
template < typename U >
friend MTPvector < U > MTP_vector ( const QVector < U > & v ) ;
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template < typename U >
friend MTPvector < U > MTP_vector ( QVector < U > & & v ) ;
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} ;
template < typename T >
inline MTPvector < T > MTP_vector ( uint32 count ) {
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return MTPvector < T > ( QVector < T > ( count ) ) ;
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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 MTPvector < T > ( QVector < T > ( count , value ) ) ;
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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 MTPvector < T > ( QVector < T > ( v ) ) ;
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}
template < typename T >
inline MTPvector < T > MTP_vector ( QVector < T > & & v ) {
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return MTPvector < T > ( std : : move ( v ) ) ;
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}
template < typename T >
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using MTPVector = MTPBoxed < MTPvector < T > > ;
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template < typename T >
inline bool operator = = ( const MTPvector < T > & a , const MTPvector < T > & b ) {
return a . c_vector ( ) . v = = b . c_vector ( ) . v ;
}
template < typename T >
inline bool operator ! = ( const MTPvector < T > & a , const MTPvector < T > & b ) {
return a . c_vector ( ) . v ! = b . c_vector ( ) . v ;
}
// Human-readable text serialization
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template < typename Type >
QString mtpWrapNumber ( Type number , int32 base = 10 ) {
return QString : : number ( number , base ) ;
}
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struct MTPStringLogger {
MTPStringLogger ( ) : p ( new char [ MTPDebugBufferSize ] ) , size ( 0 ) , alloced ( MTPDebugBufferSize ) {
}
~ MTPStringLogger ( ) {
delete [ ] p ;
}
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MTPStringLogger & add ( const QString & data ) {
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auto d = data . toUtf8 ( ) ;
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return add ( d . constData ( ) , d . size ( ) ) ;
}
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MTPStringLogger & add ( const char * data , int32 len = - 1 ) {
if ( len < 0 ) len = strlen ( data ) ;
if ( ! len ) return ( * this ) ;
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ensureLength ( len ) ;
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memcpy ( p + size , data , len ) ;
size + = len ;
return ( * this ) ;
}
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MTPStringLogger & addSpaces ( int32 level ) {
int32 len = level * 2 ;
if ( ! len ) return ( * this ) ;
ensureLength ( len ) ;
for ( char * ptr = p + size , * end = ptr + len ; ptr ! = end ; + + ptr ) {
* ptr = ' ' ;
}
size + = len ;
return ( * this ) ;
}
void ensureLength ( int32 add ) {
if ( size + add < = alloced ) return ;
int32 newsize = size + add ;
if ( newsize % MTPDebugBufferSize ) newsize + = MTPDebugBufferSize - ( newsize % MTPDebugBufferSize ) ;
char * b = new char [ newsize ] ;
memcpy ( b , p , size ) ;
alloced = newsize ;
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delete [ ] p ;
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p = b ;
}
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char * p ;
int32 size , alloced ;
} ;
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void mtpTextSerializeType ( MTPStringLogger & to , const mtpPrime * & from , const mtpPrime * end , mtpPrime cons = 0 , uint32 level = 0 , mtpPrime vcons = 0 ) ;
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void mtpTextSerializeCore ( MTPStringLogger & to , const mtpPrime * & from , const mtpPrime * end , mtpTypeId cons , uint32 level , mtpPrime vcons = 0 ) ;
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inline QString mtpTextSerialize ( const mtpPrime * & from , const mtpPrime * end ) {
MTPStringLogger to ;
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try {
mtpTextSerializeType ( to , from , end , mtpc_core_message ) ;
} catch ( Exception & e ) {
to . add ( " [ERROR] ( " ) . add ( e . what ( ) ) . add ( " ) " ) ;
}
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return QString : : fromUtf8 ( to . p , to . size ) ;
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}
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# include "scheme.h"
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inline MTPbool MTP_bool ( bool v ) {
return v ? MTP_boolTrue ( ) : MTP_boolFalse ( ) ;
}
inline bool mtpIsTrue ( const MTPBool & v ) {
return v . type ( ) = = mtpc_boolTrue ;
}
inline bool mtpIsFalse ( const MTPBool & v ) {
return ! mtpIsTrue ( v ) ;
}
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// we must validate that MTProto scheme flags don't intersect with client side flags
// and define common bit operators which allow use Type_ClientFlag together with Type::Flag
# define DEFINE_MTP_CLIENT_FLAGS(Type) \
static_assert ( static_cast < int32 > ( Type : : Flag : : MAX_FIELD ) < static_cast < int32 > ( Type # # _ClientFlag : : MIN_FIELD ) , \
" MTProto flags conflict with client side flags! " ) ; \
inline Type : : Flags qFlags ( Type # # _ClientFlag v ) { return Type : : Flags ( static_cast < int32 > ( v ) ) ; } \
inline Type : : Flags operator & ( Type : : Flags i , Type # # _ClientFlag v ) { return i & qFlags ( v ) ; } \
inline Type : : Flags operator & ( Type # # _ClientFlag i , Type # # _ClientFlag v ) { return qFlags ( i ) & v ; } \
inline Type : : Flags & operator & = ( Type : : Flags & i , Type # # _ClientFlag v ) { return i & = qFlags ( v ) ; } \
inline Type : : Flags operator | ( Type : : Flags i , Type # # _ClientFlag v ) { return i | qFlags ( v ) ; } \
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inline Type : : Flags operator | ( Type : : Flag i , Type # # _ClientFlag v ) { return i | qFlags ( v ) ; } \
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inline Type : : Flags operator | ( Type # # _ClientFlag i , Type # # _ClientFlag v ) { return qFlags ( i ) | v ; } \
inline Type : : Flags operator | ( Type # # _ClientFlag i , Type : : Flag v ) { return qFlags ( i ) | v ; } \
inline Type : : Flags & operator | = ( Type : : Flags & i , Type # # _ClientFlag v ) { return i | = qFlags ( v ) ; } \
inline Type : : Flags operator ~ ( Type # # _ClientFlag v ) { return ~ qFlags ( v ) ; }
// we use the same flags field for some additional client side flags
enum class MTPDmessage_ClientFlag : int32 {
// message has links for "shared links" indexing
f_has_text_links = ( 1 < < 30 ) ,
// message is a group migrate (group -> supergroup) service message
f_is_group_migrate = ( 1 < < 29 ) ,
// message needs initDimensions() + resize() + paint()
f_pending_init_dimensions = ( 1 < < 28 ) ,
// message needs resize() + paint()
f_pending_resize = ( 1 < < 27 ) ,
// message needs paint()
f_pending_paint = ( 1 < < 26 ) ,
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// message is attached to previous one when displaying the history
f_attach_to_previous = ( 1 < < 25 ) ,
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// message is attached to next one when displaying the history
f_attach_to_next = ( 1 < < 24 ) ,
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// message was sent from inline bot, need to re-set media when sent
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f_from_inline_bot = ( 1 < < 23 ) ,
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// message has a switch inline keyboard button, need to return to inline
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f_has_switch_inline_button = ( 1 < < 22 ) ,
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// message is generated on the client side and should be unread
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f_clientside_unread = ( 1 < < 21 ) ,
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// update this when adding new client side flags
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MIN_FIELD = ( 1 < < 21 ) ,
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} ;
DEFINE_MTP_CLIENT_FLAGS ( MTPDmessage )
enum class MTPDreplyKeyboardMarkup_ClientFlag : int32 {
// none (zero) markup
f_zero = ( 1 < < 30 ) ,
// markup just wants a text reply
f_force_reply = ( 1 < < 29 ) ,
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// markup keyboard is inline
f_inline = ( 1 < < 28 ) ,
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// markup has a switch inline keyboard button
f_has_switch_inline_button = ( 1 < < 27 ) ,
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// update this when adding new client side flags
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MIN_FIELD = ( 1 < < 27 ) ,
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} ;
DEFINE_MTP_CLIENT_FLAGS ( MTPDreplyKeyboardMarkup )
enum class MTPDstickerSet_ClientFlag : int32 {
// old value for sticker set is not yet loaded flag
f_not_loaded__old = ( 1 < < 31 ) ,
// sticker set is not yet loaded
f_not_loaded = ( 1 < < 30 ) ,
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// sticker set is one of featured (should be saved locally)
f_featured = ( 1 < < 29 ) ,
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// sticker set is an unread featured set
f_unread = ( 1 < < 28 ) ,
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// special set like recent or custom stickers
f_special = ( 1 < < 27 ) ,
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// update this when adding new client side flags
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MIN_FIELD = ( 1 < < 27 ) ,
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} ;
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DEFINE_MTP_CLIENT_FLAGS ( MTPDstickerSet )
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extern const MTPReplyMarkup MTPnullMarkup ;
extern const MTPVector < MTPMessageEntity > MTPnullEntities ;
extern const MTPMessageFwdHeader MTPnullFwdHeader ;
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QString stickerSetTitle ( const MTPDstickerSet & s ) ;
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inline bool mtpRequestData : : isSentContainer ( const mtpRequest & request ) { // "request-like" wrap for msgIds vector
if ( request - > size ( ) < 9 ) return false ;
return ( ! request - > msDate & & ! ( * request ) [ 6 ] ) ; // msDate = 0, seqNo = 0
}
inline bool mtpRequestData : : isStateRequest ( const mtpRequest & request ) {
if ( request - > size ( ) < 9 ) return false ;
return ( mtpTypeId ( ( * request ) [ 8 ] ) = = mtpc_msgs_state_req ) ;
}
inline bool mtpRequestData : : needAck ( const mtpRequest & request ) {
if ( request - > size ( ) < 9 ) return false ;
return mtpRequestData : : needAckByType ( ( * request ) [ 8 ] ) ;
}
inline bool mtpRequestData : : needAckByType ( mtpTypeId type ) {
switch ( type ) {
case mtpc_msg_container :
case mtpc_msgs_ack :
case mtpc_http_wait :
case mtpc_bad_msg_notification :
case mtpc_msgs_all_info :
case mtpc_msgs_state_info :
case mtpc_msg_detailed_info :
case mtpc_msg_new_detailed_info :
return false ;
}
return true ;
}