tdesktop/Telegram/SourceFiles/ui/image/image_location.cpp

1044 lines
28 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "ui/image/image_location.h"
#include "ui/image/image.h"
#include "platform/platform_specific.h"
#include "storage/cache/storage_cache_types.h"
#include "storage/serialize_common.h"
#include "data/data_file_origin.h"
#include "base/overload.h"
#include "main/main_session.h"
#include <QtCore/QBuffer>
namespace {
constexpr auto kDocumentBaseCacheTag = 0x0000000000010000ULL;
constexpr auto kDocumentBaseCacheMask = 0x000000000000FF00ULL;
constexpr auto kPhotoBaseCacheTag = 0x0000000000020000ULL;
constexpr auto kPhotoBaseCacheMask = 0x000000000000FF00ULL;
constexpr auto kNonStorageLocationToken = quint8(0x10);
constexpr auto kLegacyInMessagePeerIdFlag = quint8(0x08);
constexpr auto kModernLocationFlag = quint8(0x20);
constexpr auto kInMessageFieldsFlag = quint8(0x40);
enum class NonStorageLocationType : quint8 {
Web,
Geo,
Url,
Memory,
};
MTPInputPeer GenerateInputPeer(
PeerId id,
uint64 accessHash,
PeerId inMessagePeerId,
int32 inMessageId,
UserId self) {
const auto bareId = [&] {
return peerToBareMTPInt(id);
};
if (inMessageId && peerIsUser(inMessagePeerId)) {
return MTP_inputPeerUserFromMessage(
GenerateInputPeer(id, accessHash, 0, 0, self),
MTP_int(inMessageId),
MTP_long(peerToUser(inMessagePeerId).bare));
} else if (inMessageId && peerIsChannel(inMessagePeerId)) {
return MTP_inputPeerChannelFromMessage(
GenerateInputPeer(id, accessHash, 0, 0, self),
MTP_int(inMessageId),
MTP_long(peerToChannel(inMessagePeerId).bare));
} else if (!id) {
return MTP_inputPeerEmpty();
} else if (id == peerFromUser(self)) {
return MTP_inputPeerSelf();
} else if (peerIsUser(id)) {
return MTP_inputPeerUser(bareId(), MTP_long(accessHash));
} else if (peerIsChat(id)) {
return MTP_inputPeerChat(bareId());
} else if (peerIsChannel(id)) {
return MTP_inputPeerChannel(bareId(), MTP_long(accessHash));
} else {
return MTP_inputPeerEmpty();
}
}
} // namespace
WebFileLocation WebFileLocation::Null;
StorageFileLocation::StorageFileLocation(
int32 dcId,
UserId self,
const MTPInputFileLocation &tl)
: _dcId(dcId) {
tl.match([&](const MTPDinputFileLocation &data) {
_type = Type::Legacy;
_volumeId = data.vvolume_id().v;
_localId = data.vlocal_id().v;
_accessHash = data.vsecret().v;
_fileReference = data.vfile_reference().v;
}, [&](const MTPDinputEncryptedFileLocation &data) {
_type = Type::Encrypted;
_id = data.vid().v;
_accessHash = data.vaccess_hash().v;
}, [&](const MTPDinputDocumentFileLocation &data) {
_type = Type::Document;
_id = data.vid().v;
_accessHash = data.vaccess_hash().v;
_fileReference = data.vfile_reference().v;
_sizeLetter = data.vthumb_size().v.isEmpty()
? uint8(0)
: uint8(data.vthumb_size().v[0]);
}, [&](const MTPDinputSecureFileLocation &data) {
_type = Type::Secure;
_id = data.vid().v;
_accessHash = data.vaccess_hash().v;
}, [&](const MTPDinputTakeoutFileLocation &data) {
_type = Type::Takeout;
}, [&](const MTPDinputPhotoFileLocation &data) {
_type = Type::Photo;
_id = data.vid().v;
_accessHash = data.vaccess_hash().v;
_fileReference = data.vfile_reference().v;
_sizeLetter = data.vthumb_size().v.isEmpty()
? char(0)
: data.vthumb_size().v[0];
}, [&](const MTPDinputPhotoLegacyFileLocation &data) {
_type = Type::Legacy;
_volumeId = data.vvolume_id().v;
_localId = data.vlocal_id().v;
_accessHash = data.vsecret().v;
_fileReference = data.vfile_reference().v;
}, [&](const MTPDinputPeerPhotoFileLocation &data) {
_type = Type::PeerPhoto;
const auto fillPeer = base::overload([&](
const MTPDinputPeerEmpty &data) {
_id = 0;
}, [&](const MTPDinputPeerSelf &data) {
_id = peerFromUser(self).value;
}, [&](const MTPDinputPeerChat &data) {
_id = peerFromChat(data.vchat_id()).value;
}, [&](const MTPDinputPeerUser &data) {
_id = peerFromUser(data.vuser_id()).value;
_accessHash = data.vaccess_hash().v;
}, [&](const MTPDinputPeerChannel &data) {
_id = peerFromChannel(data.vchannel_id()).value;
_accessHash = data.vaccess_hash().v;
});
data.vpeer().match(fillPeer, [&](
const MTPDinputPeerUserFromMessage &data) {
data.vpeer().match(fillPeer, [&](auto &&) {
// Bad data provided.
_id = _accessHash = 0;
});
_inMessagePeerId = peerFromUser(data.vuser_id());
_inMessageId = data.vmsg_id().v;
}, [&](const MTPDinputPeerChannelFromMessage &data) {
data.vpeer().match(fillPeer, [&](auto &&) {
// Bad data provided.
_id = _accessHash = 0;
});
_inMessagePeerId = peerFromChannel(data.vchannel_id());
_inMessageId = data.vmsg_id().v;
});
_volumeId = data.vphoto_id().v;
_sizeLetter = data.is_big() ? 'c' : 'a';
// _localId place is used in serialization.
Ensures(_localId == 0);
}, [&](const MTPDinputStickerSetThumb &data) {
_type = Type::StickerSetThumb;
data.vstickerset().match([&](const MTPDinputStickerSetEmpty &data) {
_id = 0;
}, [&](const MTPDinputStickerSetID &data) {
_id = data.vid().v;
_accessHash = data.vaccess_hash().v;
}, [&](const auto &data) {
Unexpected("InputStickerSet type in StorageFileLocation.");
});
_volumeId = 0;
_localId = data.vthumb_version().v;
}, [&](const MTPDinputGroupCallStream &data) {
_type = Type::GroupCallStream;
data.vcall().match([&](const MTPDinputGroupCall &data) {
_id = data.vid().v;
_accessHash = data.vaccess_hash().v;
});
_volumeId = data.vtime_ms().v;
_localId = data.vscale().v;
_sizeLetter = uint8(data.vvideo_channel().value_or_empty() & 0x3F)
| uint8((data.vvideo_quality().value_or_empty() & 0x03) << 6);
});
}
StorageFileLocation StorageFileLocation::convertToModernPeerPhoto(
uint64 id,
uint64 accessHash,
uint64 photoId) const {
if (_type != Type::Legacy && _type != Type::PeerPhoto) {
return *this;
} else if (!photoId) {
return StorageFileLocation();
}
auto result = *this;
result._type = Type::PeerPhoto;
result._id = id;
result._accessHash = accessHash;
result._sizeLetter = uint8('a');
result._volumeId = photoId;
result._localId = 0;
result._inMessagePeerId = 0;
result._inMessageId = 0;
return result;
}
int32 StorageFileLocation::dcId() const {
return _dcId;
}
uint64 StorageFileLocation::objectId() const {
return _id;
}
MTPInputFileLocation StorageFileLocation::tl(UserId self) const {
switch (_type) {
case Type::Legacy:
return MTP_inputFileLocation(
MTP_long(_volumeId),
MTP_int(_localId),
MTP_long(_accessHash),
MTP_bytes(_fileReference));
case Type::Encrypted:
return MTP_inputSecureFileLocation(
MTP_long(_id),
MTP_long(_accessHash));
case Type::Document:
return MTP_inputDocumentFileLocation(
MTP_long(_id),
MTP_long(_accessHash),
MTP_bytes(_fileReference),
MTP_string(_sizeLetter
? std::string(1, char(_sizeLetter))
: std::string()));
case Type::Secure:
return MTP_inputSecureFileLocation(
MTP_long(_id),
MTP_long(_accessHash));
case Type::Takeout:
return MTP_inputTakeoutFileLocation();
case Type::Photo:
return MTP_inputPhotoFileLocation(
MTP_long(_id),
MTP_long(_accessHash),
MTP_bytes(_fileReference),
MTP_string(std::string(1, char(_sizeLetter))));
case Type::PeerPhoto:
return MTP_inputPeerPhotoFileLocation(
MTP_flags((_sizeLetter == 'c')
? MTPDinputPeerPhotoFileLocation::Flag::f_big
: MTPDinputPeerPhotoFileLocation::Flag(0)),
GenerateInputPeer(
PeerId(_id),
_accessHash,
_inMessagePeerId,
_inMessageId,
self),
MTP_long(_volumeId));
case Type::StickerSetThumb:
return MTP_inputStickerSetThumb(
MTP_inputStickerSetID(MTP_long(_id), MTP_long(_accessHash)),
MTP_int(_localId));
case Type::GroupCallStream:
return MTP_inputGroupCallStream(
MTP_flags((_sizeLetter != 0)
? (MTPDinputGroupCallStream::Flag::f_video_channel
| MTPDinputGroupCallStream::Flag::f_video_quality)
: MTPDinputGroupCallStream::Flag(0)),
MTP_inputGroupCall(MTP_long(_id), MTP_long(_accessHash)),
MTP_long(_volumeId),
MTP_int(_localId),
MTP_int(_sizeLetter & 0x3F),
MTP_int((_sizeLetter >> 6) & 0x03));
}
Unexpected("Type in StorageFileLocation::tl.");
}
QByteArray StorageFileLocation::serialize() const {
auto result = QByteArray();
if (valid()) {
result.reserve(serializeSize());
auto buffer = QBuffer(&result);
buffer.open(QIODevice::WriteOnly);
auto stream = QDataStream(&buffer);
stream.setVersion(QDataStream::Qt_5_1);
Assert(!(quint8(_type) & kModernLocationFlag)
&& !(quint8(_type) & kInMessageFieldsFlag));
auto typeWithFlags = quint8(_type);
typeWithFlags |= kModernLocationFlag;
auto field1 = qint32(_localId);
auto field2 = qint32(0);
if (_inMessagePeerId != 0) {
Assert(field1 == 0);
typeWithFlags |= kInMessageFieldsFlag;
field1 = qint32(uint32(_inMessagePeerId.value >> 32));
field2 = qint32(uint32(_inMessagePeerId.value & 0xFFFFFFFFULL));
}
Assert(typeWithFlags != kNonStorageLocationToken);
stream
<< quint16(_dcId)
<< typeWithFlags
<< quint8(_sizeLetter)
<< field1
<< quint64(_id)
<< quint64(_accessHash)
<< quint64(_volumeId)
<< field2
<< qint32(_inMessageId)
<< _fileReference;
}
return result;
}
int StorageFileLocation::serializeSize() const {
return valid()
? int(sizeof(uint64) * 5 + Serialize::bytearraySize(_fileReference))
: 0;
}
std::optional<StorageFileLocation> StorageFileLocation::FromSerialized(
const QByteArray &serialized) {
if (serialized.isEmpty()) {
return StorageFileLocation();
}
quint16 dcId = 0;
quint8 typeWithFlags = 0;
quint8 sizeLetter = 0;
qint32 field1 = 0;
quint64 id = 0;
quint64 accessHash = 0;
quint64 volumeId = 0;
qint32 field2 = 0;
qint32 inMessageId = 0;
QByteArray fileReference;
auto stream = QDataStream(serialized);
stream.setVersion(QDataStream::Qt_5_1);
stream
>> dcId
>> typeWithFlags;
if (typeWithFlags == kNonStorageLocationToken) {
return std::nullopt;
}
stream
>> sizeLetter
>> field1
>> id
>> accessHash
>> volumeId;
const auto modern = ((typeWithFlags & kModernLocationFlag) != 0);
const auto inMessageFields
= ((typeWithFlags & kInMessageFieldsFlag) != 0);
if (modern) {
stream >> field2 >> inMessageId;
typeWithFlags &= ~kModernLocationFlag;
if (inMessageFields) {
typeWithFlags &= ~kInMessageFieldsFlag;
}
} else if (typeWithFlags & kLegacyInMessagePeerIdFlag) {
typeWithFlags &= ~kLegacyInMessagePeerIdFlag;
stream >> field2 >> inMessageId;
}
stream >> fileReference;
auto result = StorageFileLocation();
result._dcId = dcId;
result._type = Type(typeWithFlags);
result._sizeLetter = sizeLetter;
result._accessHash = accessHash;
result._volumeId = volumeId;
result._inMessageId = inMessageId;
result._fileReference = fileReference;
if (modern) {
result._id = id;
if (inMessageFields) {
result._localId = 0;
result._inMessagePeerId = PeerId(
(uint64(uint32(field1)) << 32) | uint64(uint32(field2)));
} else {
result._localId = field1;
result._inMessagePeerId = 0;
}
} else {
result._id = (result._type == Type::PeerPhoto)
? DeserializePeerId(id).value
: id;
result._localId = (result._type == Type::PeerPhoto)
? 0
: field1;
result._inMessagePeerId = (field2 && result._type == Type::PeerPhoto)
? ((field2 > 0)
? peerFromUser(UserId(field2))
: peerFromChannel(ChannelId(-field2)))
: PeerId();
}
if (result._type == Type::StickerSetThumb && result._volumeId != 0) {
// Legacy field values that cannot be converted to modern.
// No information about thumb_version, which is required.
return std::nullopt;
}
return (stream.status() == QDataStream::Ok && result.valid())
? std::make_optional(result)
: std::nullopt;
}
StorageFileLocation::Type StorageFileLocation::type() const {
return _type;
}
bool StorageFileLocation::valid() const {
switch (_type) {
case Type::Legacy:
return (_dcId != 0) && (_volumeId != 0) && (_localId != 0);
case Type::Encrypted:
case Type::Secure:
case Type::Document:
return (_dcId != 0) && (_id != 0);
case Type::Photo:
return (_dcId != 0) && (_id != 0) && (_sizeLetter != 0);
case Type::Takeout:
return true;
case Type::PeerPhoto:
case Type::StickerSetThumb:
return (_dcId != 0) && (_id != 0);
case Type::GroupCallStream:
return (_dcId != 0) && (_id != 0) && (_volumeId != 0);
}
return false;
}
bool StorageFileLocation::isLegacy() const {
return (_type == Type::Legacy);
}
bool StorageFileLocation::isDocumentThumbnail() const {
return (_type == Type::Document) && (_sizeLetter != 0);
}
Storage::Cache::Key StorageFileLocation::cacheKey() const {
using Key = Storage::Cache::Key;
// Skip '1' for legacy document cache keys.
// Skip '2' because it is used for good (fullsize) document thumbnails.
const auto shifted = ((uint64(_type) + 3) << 8);
const auto sliced = uint64(_dcId) & 0xFFULL;
switch (_type) {
case Type::Legacy:
case Type::PeerPhoto:
case Type::StickerSetThumb:
return Key{
shifted | sliced | (uint64(uint32(_localId)) << 16),
_volumeId };
case Type::Encrypted:
case Type::Secure:
return Key{ shifted | sliced, _id };
case Type::Document:
// Keep old cache keys for documents.
if (_sizeLetter == 0) {
return Data::DocumentCacheKey(_dcId, _id);
//return Key{ 0x100ULL | sliced, _id };
}
[[fallthrough]];
case Type::Photo:
return Key{ shifted | sliced | (uint64(_sizeLetter) << 16), _id };
case Type::Takeout:
return Key{ shifted, 0 };
case Type::GroupCallStream:
return Key{
(shifted
| sliced
| (uint32(_localId) << 16)
| (_volumeId << 20)
| (uint64(_sizeLetter) << 56)),
_id };
}
return Key();
}
Storage::Cache::Key StorageFileLocation::bigFileBaseCacheKey() const {
switch (_type) {
case Type::Document: {
const auto high = kDocumentBaseCacheTag
| ((uint64(_dcId) << 16) & kDocumentBaseCacheMask)
| (_id >> 48);
const auto low = (_id << 16);
Ensures((low & 0x1FFULL) == 0);
return Storage::Cache::Key{ high, low };
}
case Type::StickerSetThumb: {
const auto high = (uint64(uint32(_localId)) << 24)
| ((uint64(_type) + 1) << 16)
| ((uint64(_dcId) & 0xFFULL) << 8)
| (_volumeId >> 56);
const auto low = (_volumeId << 8);
Ensures((low & 0xFFULL) == 0);
return Storage::Cache::Key{ high, low };
}
case Type::Photo: {
const auto high = kPhotoBaseCacheTag
| ((uint64(_dcId) << 16) & kPhotoBaseCacheMask)
| (_id >> 48);
const auto low = (_id << 16);
Ensures((low & 0xFFULL) == 0);
return Storage::Cache::Key{ high, low };
}
case Type::Legacy:
case Type::PeerPhoto:
case Type::Encrypted:
case Type::Secure:
case Type::Takeout:
case Type::GroupCallStream:
Unexpected("Not implemented file location type.");
};
Unexpected("Invalid file location type.");
}
QByteArray StorageFileLocation::fileReference() const {
return _fileReference;
}
bool StorageFileLocation::refreshFileReference(
const Data::UpdatedFileReferences &updates) {
const auto i = (_type == Type::Document)
? updates.data.find(Data::DocumentFileLocationId{ _id })
: (_type == Type::Photo)
? updates.data.find(Data::PhotoFileLocationId{ _id })
: end(updates.data);
return (i != end(updates.data))
? refreshFileReference(i->second)
: false;
}
bool StorageFileLocation::refreshFileReference(const QByteArray &data) {
if (data.isEmpty() || _fileReference == data) {
return false;
}
_fileReference = data;
return true;
}
const StorageFileLocation &StorageFileLocation::Invalid() {
static auto result = StorageFileLocation();
return result;
}
bool operator==(const StorageFileLocation &a, const StorageFileLocation &b) {
const auto valid = a.valid();
if (valid != b.valid()) {
return false;
} else if (!valid) {
return true;
}
const auto type = a._type;
if (type != b._type) {
return false;
}
using Type = StorageFileLocation::Type;
switch (type) {
case Type::Legacy:
return (a._dcId == b._dcId)
&& (a._volumeId == b._volumeId)
&& (a._localId == b._localId);
case Type::Encrypted:
case Type::Secure:
return (a._dcId == b._dcId) && (a._id == b._id);
case Type::Photo:
case Type::Document:
return (a._dcId == b._dcId)
&& (a._id == b._id)
&& (a._sizeLetter == b._sizeLetter);
case Type::Takeout:
return true;
case Type::PeerPhoto:
return (a._dcId == b._dcId)
&& (a._volumeId == b._volumeId)
&& (a._localId == b._localId)
&& (a._id == b._id)
&& (a._sizeLetter == b._sizeLetter);
case Type::StickerSetThumb:
return (a._dcId == b._dcId)
&& (a._volumeId == b._volumeId)
&& (a._localId == b._localId)
&& (a._id == b._id);
case Type::GroupCallStream:
return (a._dcId == b._dcId)
&& (a._id == b._id)
&& (a._localId == b._localId)
&& (a._sizeLetter == b._sizeLetter);
};
Unexpected("Type in StorageFileLocation::operator==.");
}
bool operator<(const StorageFileLocation &a, const StorageFileLocation &b) {
const auto valid = a.valid();
if (valid != b.valid()) {
return !valid;
} else if (!valid) {
return false;
}
const auto type = a._type;
if (type != b._type) {
return (type < b._type);
}
using Type = StorageFileLocation::Type;
switch (type) {
case Type::Legacy:
return std::tie(a._localId, a._volumeId, a._dcId)
< std::tie(b._localId, b._volumeId, b._dcId);
case Type::Encrypted:
case Type::Secure:
return std::tie(a._id, a._dcId) < std::tie(b._id, b._dcId);
case Type::Photo:
case Type::Document:
return std::tie(a._id, a._dcId, a._sizeLetter)
< std::tie(b._id, b._dcId, b._sizeLetter);
case Type::Takeout:
return false;
case Type::PeerPhoto:
return std::tie(
a._id,
a._sizeLetter,
a._localId,
a._volumeId,
a._dcId)
< std::tie(
b._id,
b._sizeLetter,
b._localId,
b._volumeId,
b._dcId);
case Type::StickerSetThumb:
return std::tie(a._id, a._localId, a._volumeId, a._dcId)
< std::tie(b._id, b._localId, b._volumeId, b._dcId);
case Type::GroupCallStream:
return std::tie(a._id, a._localId, a._dcId, a._sizeLetter)
< std::tie(b._id, b._localId, b._dcId, b._sizeLetter);
};
Unexpected("Type in StorageFileLocation::operator==.");
}
InMemoryKey inMemoryKey(const StorageFileLocation &location) {
const auto key = location.cacheKey();
return { key.high, key.low };
}
InMemoryKey inMemoryKey(const WebFileLocation &location) {
auto result = InMemoryKey();
const auto &url = location.url();
const auto sha = hashSha1(url.data(), url.size());
bytes::copy(
bytes::object_as_span(&result),
bytes::make_span(sha).subspan(0, sizeof(result)));
return result;
}
InMemoryKey inMemoryKey(const GeoPointLocation &location) {
return InMemoryKey(
(uint64(base::SafeRound(
std::abs(location.lat + 360.) * 1000000)) << 32)
| uint64(base::SafeRound(std::abs(location.lon + 360.) * 1000000)),
(uint64(location.width) << 32) | uint64(location.height));
}
InMemoryKey inMemoryKey(const PlainUrlLocation &location) {
auto result = InMemoryKey();
const auto &url = location.url;
const auto sha = hashSha1(url.data(), url.size() * sizeof(QChar));
bytes::copy(
bytes::object_as_span(&result),
bytes::make_span(sha).subspan(0, sizeof(result)));
return result;
}
InMemoryKey inMemoryKey(const InMemoryLocation &location) {
auto result = InMemoryKey();
const auto &data = location.bytes;
const auto sha = hashSha1(data.data(), data.size());
bytes::copy(
bytes::object_as_span(&result),
bytes::make_span(sha).subspan(0, sizeof(result)));
return result;
}
InMemoryKey inMemoryKey(const DownloadLocation &location) {
return v::match(location.data, [](const auto &data) {
return inMemoryKey(data);
});
}
StorageImageLocation::StorageImageLocation(
const StorageFileLocation &file,
int width,
int height)
: _file(file)
, _width(width)
, _height(height) {
}
QByteArray StorageImageLocation::serialize() const {
auto result = _file.serialize();
if (!result.isEmpty() || (_width > 0) || (_height > 0)) {
result.reserve(result.size() + 2 * sizeof(qint32));
auto buffer = QBuffer(&result);
buffer.open(QIODevice::Append);
auto stream = QDataStream(&buffer);
stream.setVersion(QDataStream::Qt_5_1);
stream << qint32(_width) << qint32(_height);
}
return result;
}
int StorageImageLocation::serializeSize() const {
const auto partial = _file.serializeSize();
return (partial > 0 || _width > 0 || _height > 0)
? (partial + 2 * sizeof(qint32))
: 0;
}
std::optional<StorageImageLocation> StorageImageLocation::FromSerialized(
const QByteArray &serialized) {
if (const auto file = StorageFileLocation::FromSerialized(serialized)) {
const auto my = 2 * sizeof(qint32);
const auto full = serialized.size();
if (!full) {
return StorageImageLocation(*file, 0, 0);
} else if (full >= my) {
qint32 width = 0;
qint32 height = 0;
const auto dimensions = QByteArray::fromRawData(
serialized.data() + full - my, my);
auto stream = QDataStream(dimensions);
stream.setVersion(QDataStream::Qt_5_1);
stream >> width >> height;
return (stream.status() == QDataStream::Ok)
? StorageImageLocation(*file, width, height)
: std::optional<StorageImageLocation>();
}
}
return std::nullopt;
}
QByteArray DownloadLocation::serialize() const {
if (!valid() || v::is<StorageFileLocation>(data)) {
return v::get<StorageFileLocation>(data).serialize();
}
auto result = QByteArray();
auto buffer = QBuffer(&result);
buffer.open(QIODevice::WriteOnly);
auto stream = QDataStream(&buffer);
stream.setVersion(QDataStream::Qt_5_1);
stream << quint16(0) << kNonStorageLocationToken;
v::match(data, [&](const StorageFileLocation &data) {
Unexpected("Variant in DownloadLocation::serialize.");
}, [&](const WebFileLocation &data) {
stream
<< quint8(NonStorageLocationType::Web)
<< data.url()
<< quint64(data.accessHash());
}, [&](const GeoPointLocation &data) {
stream
<< quint8(NonStorageLocationType::Geo)
<< qreal(data.lat)
<< qreal(data.lon)
<< quint64(data.access)
<< qint32(data.width)
<< qint32(data.height)
<< qint32(data.zoom)
<< qint32(data.scale);
}, [&](const PlainUrlLocation &data) {
stream << quint8(NonStorageLocationType::Url) << data.url.toUtf8();
}, [&](const InMemoryLocation &data) {
stream << quint8(NonStorageLocationType::Memory) << data.bytes;
});
buffer.close();
return result;
}
int DownloadLocation::serializeSize() const {
if (!valid() || v::is<StorageFileLocation>(data)) {
return v::get<StorageFileLocation>(data).serializeSize();
}
auto result = sizeof(quint16) + sizeof(quint8) + sizeof(quint8);
v::match(data, [&](const StorageFileLocation &data) {
Unexpected("Variant in DownloadLocation::serializeSize.");
}, [&](const WebFileLocation &data) {
result += Serialize::bytearraySize(data.url()) + sizeof(quint64);
}, [&](const GeoPointLocation &data) {
result += 2 * sizeof(qreal) + sizeof(quint64) + 4 * sizeof(qint32);
}, [&](const PlainUrlLocation &data) {
result += Serialize::bytearraySize(data.url.toUtf8());
}, [&](const InMemoryLocation &data) {
result += Serialize::bytearraySize(data.bytes);
});
return result;
}
std::optional<DownloadLocation> DownloadLocation::FromSerialized(
const QByteArray &serialized) {
quint16 dcId = 0;
quint8 token = 0;
auto stream = QDataStream(serialized);
stream.setVersion(QDataStream::Qt_5_1);
stream >> dcId >> token;
if (dcId != 0 || token != kNonStorageLocationToken) {
const auto storage = StorageFileLocation::FromSerialized(serialized);
return storage
? std::make_optional(DownloadLocation{ *storage })
: std::nullopt;
}
quint8 type = 0;
stream >> type;
switch (NonStorageLocationType(type)) {
case NonStorageLocationType::Web: {
QByteArray url;
quint64 accessHash = 0;
stream >> url >> accessHash;
return (stream.status() == QDataStream::Ok)
? std::make_optional(
DownloadLocation{ WebFileLocation(url, accessHash) })
: std::nullopt;
} break;
case NonStorageLocationType::Geo: {
qreal lat = 0.;
qreal lon = 0.;
quint64 access = 0;
qint32 width = 0;
qint32 height = 0;
qint32 zoom = 0;
qint32 scale = 0;
stream >> lat >> lon >> access >> width >> height >> zoom >> scale;
return (stream.status() == QDataStream::Ok)
? std::make_optional(
DownloadLocation{ GeoPointLocation{
.lat = lat,
.lon = lon,
.access = access,
.width = width,
.height = height,
.zoom = zoom,
.scale = scale } })
: std::nullopt;
} break;
case NonStorageLocationType::Url: {
QByteArray utf;
stream >> utf;
const auto url = base::FromUtf8Safe(utf);
return (stream.status() == QDataStream::Ok)
? std::make_optional(DownloadLocation{ PlainUrlLocation{ url } })
: std::nullopt;
} break;
case NonStorageLocationType::Memory: {
QByteArray bytes;
stream >> bytes;
return (stream.status() == QDataStream::Ok)
? std::make_optional(
DownloadLocation{ InMemoryLocation{ bytes } })
: std::nullopt;
} break;
}
return std::nullopt;
}
DownloadLocation DownloadLocation::convertToModernPeerPhoto(
uint64 id,
uint64 accessHash,
uint64 photoId) const {
if (!v::is<StorageFileLocation>(data)) {
return *this;
}
auto &file = v::get<StorageFileLocation>(data);
return DownloadLocation{
file.convertToModernPeerPhoto(id, accessHash, photoId)
};
}
Storage::Cache::Key DownloadLocation::cacheKey() const {
return v::match(data, [](const GeoPointLocation &data) {
return Data::GeoPointCacheKey(data);
}, [](const StorageFileLocation &data) {
return data.valid()
? data.cacheKey()
: Storage::Cache::Key();
}, [](const WebFileLocation &data) {
return data.isNull()
? Storage::Cache::Key()
: Data::WebDocumentCacheKey(data);
}, [](const PlainUrlLocation &data) {
return data.url.isEmpty()
? Storage::Cache::Key()
: Data::UrlCacheKey(data.url);
}, [](const InMemoryLocation &data) {
return Storage::Cache::Key();
});
}
Storage::Cache::Key DownloadLocation::bigFileBaseCacheKey() const {
return v::is<StorageFileLocation>(data)
? v::get<StorageFileLocation>(data).bigFileBaseCacheKey()
: Storage::Cache::Key();
}
bool DownloadLocation::valid() const {
return v::match(data, [](const GeoPointLocation &data) {
return true;
}, [](const StorageFileLocation &data) {
return data.valid();
}, [](const WebFileLocation &data) {
return !data.isNull();
}, [](const PlainUrlLocation &data) {
return !data.url.isEmpty();
}, [](const InMemoryLocation &data) {
return !data.bytes.isEmpty();
});
}
bool DownloadLocation::isLegacy() const {
return v::is<StorageFileLocation>(data)
? v::get<StorageFileLocation>(data).isLegacy()
: false;
}
QByteArray DownloadLocation::fileReference() const {
if (!v::is<StorageFileLocation>(data)) {
return QByteArray();
}
return v::get<StorageFileLocation>(data).fileReference();
}
bool DownloadLocation::refreshFileReference(const QByteArray &data) {
if (!v::is<StorageFileLocation>(this->data)) {
return false;
}
auto &file = v::get<StorageFileLocation>(this->data);
return file.refreshFileReference(data);
}
bool DownloadLocation::refreshFileReference(
const Data::UpdatedFileReferences &updates) {
if (!v::is<StorageFileLocation>(data)) {
return false;
}
auto &file = v::get<StorageFileLocation>(data);
return file.refreshFileReference(updates);
}
ImageLocation::ImageLocation(
const DownloadLocation &file,
int width,
int height)
: _file(file)
, _width(width)
, _height(height) {
}
QByteArray ImageLocation::serialize() const {
auto result = _file.serialize();
if (!result.isEmpty() || (_width > 0) || (_height > 0)) {
result.reserve(result.size() + 2 * sizeof(qint32));
auto buffer = QBuffer(&result);
buffer.open(QIODevice::Append);
auto stream = QDataStream(&buffer);
stream.setVersion(QDataStream::Qt_5_1);
stream << qint32(_width) << qint32(_height);
}
return result;
}
int ImageLocation::serializeSize() const {
const auto partial = _file.serializeSize();
return (partial > 0 || _width > 0 || _height > 0)
? (partial + 2 * sizeof(qint32))
: 0;
}
std::optional<ImageLocation> ImageLocation::FromSerialized(
const QByteArray &serialized) {
if (const auto file = DownloadLocation::FromSerialized(serialized)) {
const auto my = 2 * sizeof(qint32);
const auto full = serialized.size();
if (!full) {
return ImageLocation(*file, 0, 0);
} else if (full >= my) {
qint32 width = 0;
qint32 height = 0;
const auto dimensions = QByteArray::fromRawData(
serialized.data() + full - my, my);
auto stream = QDataStream(dimensions);
stream.setVersion(QDataStream::Qt_5_1);
stream >> width >> height;
return (stream.status() == QDataStream::Ok)
? ImageLocation(*file, width, height)
: std::optional<ImageLocation>();
}
}
return std::nullopt;
}