tdlight/td/telegram/Photo.cpp

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//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/telegram/Photo.h"
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#include "td/telegram/Dimensions.h"
#include "td/telegram/files/FileEncryptionKey.h"
#include "td/telegram/files/FileLocation.h"
#include "td/telegram/files/FileManager.h"
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#include "td/telegram/files/FileType.h"
#include "td/telegram/net/DcId.h"
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#include "td/telegram/PhotoFormat.h"
#include "td/telegram/PhotoSizeSource.h"
#include "td/utils/algorithm.h"
#include "td/utils/common.h"
#include "td/utils/format.h"
#include "td/utils/logging.h"
#include "td/utils/SliceBuilder.h"
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#include <algorithm>
namespace td {
ProfilePhoto get_profile_photo(FileManager *file_manager, UserId user_id, int64 user_access_hash,
tl_object_ptr<telegram_api::UserProfilePhoto> &&profile_photo_ptr) {
ProfilePhoto result;
int32 profile_photo_id =
profile_photo_ptr == nullptr ? telegram_api::userProfilePhotoEmpty::ID : profile_photo_ptr->get_id();
switch (profile_photo_id) {
case telegram_api::userProfilePhotoEmpty::ID:
break;
case telegram_api::userProfilePhoto::ID: {
auto profile_photo = move_tl_object_as<telegram_api::userProfilePhoto>(profile_photo_ptr);
auto dc_id = DcId::create(profile_photo->dc_id_);
result.has_animation = profile_photo->has_video_;
result.id = profile_photo->photo_id_;
result.minithumbnail = profile_photo->stripped_thumb_.as_slice().str();
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result.small_file_id = register_photo_size(
file_manager, PhotoSizeSource::dialog_photo(DialogId(user_id), user_access_hash, false), result.id,
0 /*access_hash*/, "" /*file_reference*/, DialogId(), 0 /*file_size*/, dc_id, PhotoFormat::Jpeg);
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result.big_file_id = register_photo_size(
file_manager, PhotoSizeSource::dialog_photo(DialogId(user_id), user_access_hash, true), result.id,
0 /*access_hash*/, "" /*file_reference*/, DialogId(), 0 /*file_size*/, dc_id, PhotoFormat::Jpeg);
break;
}
default:
UNREACHABLE();
break;
}
return result;
}
tl_object_ptr<td_api::profilePhoto> get_profile_photo_object(FileManager *file_manager,
const ProfilePhoto &profile_photo) {
if (!profile_photo.small_file_id.is_valid()) {
return nullptr;
}
return td_api::make_object<td_api::profilePhoto>(
profile_photo.id, file_manager->get_file_object(profile_photo.small_file_id),
file_manager->get_file_object(profile_photo.big_file_id), get_minithumbnail_object(profile_photo.minithumbnail),
profile_photo.has_animation);
}
bool need_update_profile_photo(const ProfilePhoto &from, const ProfilePhoto &to) {
return from.id != to.id || need_update_dialog_photo(from, to);
}
StringBuilder &operator<<(StringBuilder &string_builder, const ProfilePhoto &profile_photo) {
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return string_builder << "<ID = " << profile_photo.id << ", small_file_id = " << profile_photo.small_file_id
<< ", big_file_id = " << profile_photo.big_file_id
<< ", has_animation = " << profile_photo.has_animation << ">";
}
DialogPhoto get_dialog_photo(FileManager *file_manager, DialogId dialog_id, int64 dialog_access_hash,
tl_object_ptr<telegram_api::ChatPhoto> &&chat_photo_ptr) {
int32 chat_photo_id = chat_photo_ptr == nullptr ? telegram_api::chatPhotoEmpty::ID : chat_photo_ptr->get_id();
DialogPhoto result;
switch (chat_photo_id) {
case telegram_api::chatPhotoEmpty::ID:
break;
case telegram_api::chatPhoto::ID: {
auto chat_photo = move_tl_object_as<telegram_api::chatPhoto>(chat_photo_ptr);
auto dc_id = DcId::create(chat_photo->dc_id_);
result.has_animation = chat_photo->has_video_;
result.minithumbnail = chat_photo->stripped_thumb_.as_slice().str();
result.small_file_id =
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register_photo_size(file_manager, PhotoSizeSource::dialog_photo(dialog_id, dialog_access_hash, false),
chat_photo->photo_id_, 0, "", DialogId(), 0, dc_id, PhotoFormat::Jpeg);
result.big_file_id =
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register_photo_size(file_manager, PhotoSizeSource::dialog_photo(dialog_id, dialog_access_hash, true),
chat_photo->photo_id_, 0, "", DialogId(), 0, dc_id, PhotoFormat::Jpeg);
break;
}
default:
UNREACHABLE();
break;
}
return result;
}
tl_object_ptr<td_api::chatPhotoInfo> get_chat_photo_info_object(FileManager *file_manager,
const DialogPhoto *dialog_photo) {
if (dialog_photo == nullptr || !dialog_photo->small_file_id.is_valid()) {
return nullptr;
}
return td_api::make_object<td_api::chatPhotoInfo>(file_manager->get_file_object(dialog_photo->small_file_id),
file_manager->get_file_object(dialog_photo->big_file_id),
get_minithumbnail_object(dialog_photo->minithumbnail),
dialog_photo->has_animation);
}
vector<FileId> dialog_photo_get_file_ids(const DialogPhoto &dialog_photo) {
vector<FileId> result;
if (dialog_photo.small_file_id.is_valid()) {
result.push_back(dialog_photo.small_file_id);
}
if (dialog_photo.big_file_id.is_valid()) {
result.push_back(dialog_photo.big_file_id);
}
return result;
}
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DialogPhoto as_fake_dialog_photo(const Photo &photo, DialogId dialog_id) {
DialogPhoto result;
if (!photo.is_empty()) {
for (auto &size : photo.photos) {
if (size.type == 'a') {
result.small_file_id = size.file_id;
} else if (size.type == 'c') {
result.big_file_id = size.file_id;
}
}
result.minithumbnail = photo.minithumbnail;
result.has_animation = !photo.animations.empty();
if (!result.small_file_id.is_valid() || !result.big_file_id.is_valid()) {
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LOG(ERROR) << "Failed to convert " << photo << " to chat photo of " << dialog_id;
return DialogPhoto();
}
}
return result;
}
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DialogPhoto as_dialog_photo(FileManager *file_manager, DialogId dialog_id, int64 dialog_access_hash,
const Photo &photo) {
DialogPhoto result;
static_cast<DialogPhoto &>(result) = as_fake_dialog_photo(photo, dialog_id);
if (!result.small_file_id.is_valid()) {
return result;
}
auto reregister_photo = [&](bool is_big, FileId file_id) {
auto file_view = file_manager->get_file_view(file_id);
CHECK(file_view.has_remote_location());
auto remote = file_view.remote_location();
CHECK(remote.is_photo());
CHECK(!remote.is_web());
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remote.set_source(PhotoSizeSource::dialog_photo(dialog_id, dialog_access_hash, is_big));
return file_manager->register_remote(std::move(remote), FileLocationSource::FromServer, DialogId(), 0, 0,
file_view.remote_name());
};
result.small_file_id = reregister_photo(false, result.small_file_id);
result.big_file_id = reregister_photo(true, result.big_file_id);
return result;
}
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ProfilePhoto as_profile_photo(FileManager *file_manager, UserId user_id, int64 user_access_hash, const Photo &photo) {
ProfilePhoto result;
static_cast<DialogPhoto &>(result) = as_dialog_photo(file_manager, DialogId(user_id), user_access_hash, photo);
if (result.small_file_id.is_valid()) {
result.id = photo.id.get();
}
return result;
}
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bool is_same_dialog_photo(FileManager *file_manager, DialogId dialog_id, const Photo &photo,
const DialogPhoto &dialog_photo) {
auto get_unique_file_id = [file_manager](FileId file_id) {
return file_manager->get_file_view(file_id).get_unique_file_id();
};
auto fake_photo = as_fake_dialog_photo(photo, dialog_id);
return get_unique_file_id(fake_photo.small_file_id) == get_unique_file_id(dialog_photo.small_file_id) &&
get_unique_file_id(fake_photo.big_file_id) == get_unique_file_id(dialog_photo.big_file_id);
}
bool need_update_dialog_photo(const DialogPhoto &from, const DialogPhoto &to) {
return from.small_file_id != to.small_file_id || from.big_file_id != to.big_file_id ||
from.has_animation != to.has_animation ||
need_update_dialog_photo_minithumbnail(from.minithumbnail, to.minithumbnail);
}
StringBuilder &operator<<(StringBuilder &string_builder, const DialogPhoto &dialog_photo) {
return string_builder << "<small_file_id = " << dialog_photo.small_file_id
<< ", big_file_id = " << dialog_photo.big_file_id
<< ", has_animation = " << dialog_photo.has_animation << ">";
}
static tl_object_ptr<td_api::photoSize> get_photo_size_object(FileManager *file_manager, const PhotoSize *photo_size) {
if (photo_size == nullptr || !photo_size->file_id.is_valid()) {
return nullptr;
}
return td_api::make_object<td_api::photoSize>(
photo_size->type ? std::string(1, static_cast<char>(photo_size->type))
: std::string(), // TODO replace string type with integer type
file_manager->get_file_object(photo_size->file_id), photo_size->dimensions.width, photo_size->dimensions.height,
vector<int32>(photo_size->progressive_sizes));
}
static vector<td_api::object_ptr<td_api::photoSize>> get_photo_sizes_object(FileManager *file_manager,
const vector<PhotoSize> &photo_sizes) {
auto sizes = transform(photo_sizes, [file_manager](const PhotoSize &photo_size) {
return get_photo_size_object(file_manager, &photo_size);
});
std::stable_sort(sizes.begin(), sizes.end(), [](const auto &lhs, const auto &rhs) {
if (lhs->photo_->expected_size_ != rhs->photo_->expected_size_) {
return lhs->photo_->expected_size_ < rhs->photo_->expected_size_;
}
return static_cast<uint32>(lhs->width_) * static_cast<uint32>(lhs->height_) <
static_cast<uint32>(rhs->width_) * static_cast<uint32>(rhs->height_);
});
td::remove_if(sizes, [](const auto &size) {
return !size->photo_->local_->can_be_downloaded_ && !size->photo_->local_->is_downloading_completed_;
});
return sizes;
}
static tl_object_ptr<td_api::animatedChatPhoto> get_animated_chat_photo_object(FileManager *file_manager,
const AnimationSize *animation_size) {
if (animation_size == nullptr || !animation_size->file_id.is_valid()) {
return nullptr;
}
return td_api::make_object<td_api::animatedChatPhoto>(animation_size->dimensions.width,
file_manager->get_file_object(animation_size->file_id),
animation_size->main_frame_timestamp);
}
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Photo get_encrypted_file_photo(FileManager *file_manager, unique_ptr<EncryptedFile> &&file,
tl_object_ptr<secret_api::decryptedMessageMediaPhoto> &&photo,
DialogId owner_dialog_id) {
FileId file_id = file_manager->register_remote(
FullRemoteFileLocation(FileType::Encrypted, file->id_, file->access_hash_, DcId::create(file->dc_id_), string()),
FileLocationSource::FromServer, owner_dialog_id, photo->size_, 0,
PSTRING() << static_cast<uint64>(file->id_) << ".jpg");
file_manager->set_encryption_key(file_id, FileEncryptionKey{photo->key_.as_slice(), photo->iv_.as_slice()});
Photo res;
res.id = 0;
res.date = 0;
if (!photo->thumb_.empty()) {
res.photos.push_back(get_secret_thumbnail_photo_size(file_manager, std::move(photo->thumb_), owner_dialog_id,
photo->thumb_w_, photo->thumb_h_));
}
PhotoSize s;
s.type = 'i';
s.dimensions = get_dimensions(photo->w_, photo->h_, nullptr);
s.size = photo->size_;
s.file_id = file_id;
res.photos.push_back(s);
return res;
}
Photo get_photo(FileManager *file_manager, tl_object_ptr<telegram_api::Photo> &&photo, DialogId owner_dialog_id) {
if (photo == nullptr || photo->get_id() == telegram_api::photoEmpty::ID) {
return Photo();
}
CHECK(photo->get_id() == telegram_api::photo::ID);
return get_photo(file_manager, move_tl_object_as<telegram_api::photo>(photo), owner_dialog_id);
}
Photo get_photo(FileManager *file_manager, tl_object_ptr<telegram_api::photo> &&photo, DialogId owner_dialog_id) {
CHECK(photo != nullptr);
Photo res;
res.id = photo->id_;
res.date = photo->date_;
res.has_stickers = photo->has_stickers_;
if (res.is_empty()) {
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LOG(ERROR) << "Receive photo with identifier " << res.id.get();
res.id = -3;
}
DcId dc_id = DcId::create(photo->dc_id_);
for (auto &size_ptr : photo->sizes_) {
auto photo_size = get_photo_size(file_manager, PhotoSizeSource::thumbnail(FileType::Photo, 0), photo->id_,
photo->access_hash_, photo->file_reference_.as_slice().str(), dc_id,
owner_dialog_id, std::move(size_ptr), PhotoFormat::Jpeg);
if (photo_size.get_offset() == 0) {
PhotoSize &size = photo_size.get<0>();
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if (size.type == 0 || size.type == 't' || size.type == 'i' || size.type == 'p' || size.type == 'u' ||
size.type == 'v') {
LOG(ERROR) << "Skip unallowed photo size " << size;
continue;
}
res.photos.push_back(std::move(size));
} else {
res.minithumbnail = std::move(photo_size.get<1>());
}
}
for (auto &size_ptr : photo->video_sizes_) {
auto animation = get_animation_size(file_manager, PhotoSizeSource::thumbnail(FileType::Photo, 0), photo->id_,
photo->access_hash_, photo->file_reference_.as_slice().str(), dc_id,
owner_dialog_id, std::move(size_ptr));
if (animation.type != 0 && animation.dimensions.width == animation.dimensions.height) {
res.animations.push_back(std::move(animation));
}
}
return res;
}
Photo get_web_document_photo(FileManager *file_manager, tl_object_ptr<telegram_api::WebDocument> web_document,
DialogId owner_dialog_id) {
PhotoSize s = get_web_document_photo_size(file_manager, FileType::Photo, owner_dialog_id, std::move(web_document));
Photo photo;
if (s.file_id.is_valid() && s.type != 'v' && s.type != 'g') {
photo.id = 0;
photo.photos.push_back(s);
}
return photo;
}
tl_object_ptr<td_api::photo> get_photo_object(FileManager *file_manager, const Photo &photo) {
if (photo.is_empty()) {
return nullptr;
}
return td_api::make_object<td_api::photo>(photo.has_stickers, get_minithumbnail_object(photo.minithumbnail),
get_photo_sizes_object(file_manager, photo.photos));
}
tl_object_ptr<td_api::chatPhoto> get_chat_photo_object(FileManager *file_manager, const Photo &photo) {
if (photo.is_empty()) {
return nullptr;
}
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const AnimationSize *small_animation = nullptr;
const AnimationSize *big_animation = nullptr;
for (auto &animation : photo.animations) {
if (animation.type == 'p') {
small_animation = &animation;
} else if (animation.type == 'u') {
big_animation = &animation;
}
}
if (big_animation == nullptr && small_animation != nullptr) {
LOG(ERROR) << "Have small animation without big animation in " << photo;
small_animation = nullptr;
}
return td_api::make_object<td_api::chatPhoto>(
photo.id.get(), photo.date, get_minithumbnail_object(photo.minithumbnail),
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get_photo_sizes_object(file_manager, photo.photos), get_animated_chat_photo_object(file_manager, big_animation),
get_animated_chat_photo_object(file_manager, small_animation));
}
void photo_delete_thumbnail(Photo &photo) {
for (size_t i = 0; i < photo.photos.size(); i++) {
if (photo.photos[i].type == 't') {
photo.photos.erase(photo.photos.begin() + i);
return;
}
}
}
bool photo_has_input_media(FileManager *file_manager, const Photo &photo, bool is_secret, bool is_bot) {
if (photo.photos.empty() || photo.photos.back().type != 'i') {
LOG(ERROR) << "Wrong photo: " << photo;
return false;
}
auto file_id = photo.photos.back().file_id;
auto file_view = file_manager->get_file_view(file_id);
if (is_secret) {
if (!file_view.is_encrypted_secret() || !file_view.has_remote_location()) {
return false;
}
for (const auto &size : photo.photos) {
if (size.type == 't' && size.file_id.is_valid()) {
return false;
}
}
return true;
} else {
if (file_view.is_encrypted()) {
return false;
}
if (is_bot && file_view.has_remote_location()) {
return true;
}
return /* file_view.has_remote_location() || */ file_view.has_url();
}
}
tl_object_ptr<telegram_api::InputMedia> photo_get_input_media(FileManager *file_manager, const Photo &photo,
tl_object_ptr<telegram_api::InputFile> input_file,
int32 ttl) {
if (!photo.photos.empty()) {
auto file_id = photo.photos.back().file_id;
auto file_view = file_manager->get_file_view(file_id);
if (file_view.is_encrypted()) {
return nullptr;
}
if (file_view.has_remote_location() && !file_view.main_remote_location().is_web() && input_file == nullptr) {
int32 flags = 0;
if (ttl != 0) {
flags |= telegram_api::inputMediaPhoto::TTL_SECONDS_MASK;
}
return make_tl_object<telegram_api::inputMediaPhoto>(flags, file_view.main_remote_location().as_input_photo(),
ttl);
}
if (file_view.has_url()) {
int32 flags = 0;
if (ttl != 0) {
flags |= telegram_api::inputMediaPhotoExternal::TTL_SECONDS_MASK;
}
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LOG(INFO) << "Create inputMediaPhotoExternal with a URL " << file_view.url() << " and TTL " << ttl;
return make_tl_object<telegram_api::inputMediaPhotoExternal>(flags, file_view.url(), ttl);
}
if (input_file == nullptr) {
CHECK(!file_view.has_remote_location());
}
}
if (input_file != nullptr) {
int32 flags = 0;
vector<tl_object_ptr<telegram_api::InputDocument>> added_stickers;
if (photo.has_stickers) {
flags |= telegram_api::inputMediaUploadedPhoto::STICKERS_MASK;
added_stickers = file_manager->get_input_documents(photo.sticker_file_ids);
}
if (ttl != 0) {
flags |= telegram_api::inputMediaUploadedPhoto::TTL_SECONDS_MASK;
}
return make_tl_object<telegram_api::inputMediaUploadedPhoto>(flags, std::move(input_file),
std::move(added_stickers), ttl);
}
return nullptr;
}
SecretInputMedia photo_get_secret_input_media(FileManager *file_manager, const Photo &photo,
tl_object_ptr<telegram_api::InputEncryptedFile> input_file,
const string &caption, BufferSlice thumbnail) {
FileId file_id;
int32 width = 0;
int32 height = 0;
FileId thumbnail_file_id;
int32 thumbnail_width = 0;
int32 thumbnail_height = 0;
for (const auto &size : photo.photos) {
if (size.type == 'i') {
file_id = size.file_id;
width = size.dimensions.width;
height = size.dimensions.height;
}
if (size.type == 't') {
thumbnail_file_id = size.file_id;
thumbnail_width = size.dimensions.width;
thumbnail_height = size.dimensions.height;
}
}
if (file_id.empty()) {
LOG(ERROR) << "NO SIZE";
return {};
}
auto file_view = file_manager->get_file_view(file_id);
auto &encryption_key = file_view.encryption_key();
if (!file_view.is_encrypted_secret() || encryption_key.empty()) {
return {};
}
if (file_view.has_remote_location()) {
LOG(INFO) << "Photo has remote location";
input_file = file_view.main_remote_location().as_input_encrypted_file();
}
if (input_file == nullptr) {
return {};
}
if (thumbnail_file_id.is_valid() && thumbnail.empty()) {
return {};
}
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auto size = file_view.size();
if (size < 0 || size >= 1000000000) {
size = 0;
}
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return SecretInputMedia{
std::move(input_file),
make_tl_object<secret_api::decryptedMessageMediaPhoto>(
std::move(thumbnail), thumbnail_width, thumbnail_height, width, height, static_cast<int32>(size),
BufferSlice(encryption_key.key_slice()), BufferSlice(encryption_key.iv_slice()), caption)};
}
vector<FileId> photo_get_file_ids(const Photo &photo) {
auto result = transform(photo.photos, [](auto &size) { return size.file_id; });
if (!photo.animations.empty()) {
// photo file IDs must be first
append(result, transform(photo.animations, [](auto &size) { return size.file_id; }));
}
return result;
}
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FileId get_photo_upload_file_id(const Photo &photo) {
for (auto &size : photo.photos) {
if (size.type == 'i') {
return size.file_id;
}
}
return FileId();
}
FileId get_photo_any_file_id(const Photo &photo) {
const auto &sizes = photo.photos;
if (!sizes.empty()) {
return sizes.back().file_id;
}
return FileId();
}
FileId get_photo_thumbnail_file_id(const Photo &photo) {
for (auto &size : photo.photos) {
if (size.type == 't') {
return size.file_id;
}
}
return FileId();
}
bool operator==(const Photo &lhs, const Photo &rhs) {
return lhs.id.get() == rhs.id.get() && lhs.photos == rhs.photos && lhs.animations == rhs.animations;
}
bool operator!=(const Photo &lhs, const Photo &rhs) {
return !(lhs == rhs);
}
StringBuilder &operator<<(StringBuilder &string_builder, const Photo &photo) {
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string_builder << "[ID = " << photo.id.get() << ", photos = " << format::as_array(photo.photos);
if (!photo.animations.empty()) {
string_builder << ", animations = " << format::as_array(photo.animations);
}
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return string_builder << ']';
}
tl_object_ptr<telegram_api::userProfilePhoto> convert_photo_to_profile_photo(
const tl_object_ptr<telegram_api::photo> &photo) {
if (photo == nullptr) {
return nullptr;
}
bool have_photo_small = false;
bool have_photo_big = false;
for (auto &size_ptr : photo->sizes_) {
switch (size_ptr->get_id()) {
case telegram_api::photoSizeEmpty::ID:
break;
case telegram_api::photoSize::ID: {
auto size = static_cast<const telegram_api::photoSize *>(size_ptr.get());
if (size->type_ == "a") {
have_photo_small = true;
} else if (size->type_ == "c") {
have_photo_big = true;
}
break;
}
case telegram_api::photoCachedSize::ID: {
auto size = static_cast<const telegram_api::photoCachedSize *>(size_ptr.get());
if (size->type_ == "a") {
have_photo_small = true;
} else if (size->type_ == "c") {
have_photo_big = true;
}
break;
}
case telegram_api::photoStrippedSize::ID:
break;
case telegram_api::photoSizeProgressive::ID: {
auto size = static_cast<const telegram_api::photoSizeProgressive *>(size_ptr.get());
if (size->type_ == "a") {
have_photo_small = true;
} else if (size->type_ == "c") {
have_photo_big = true;
}
break;
}
default:
UNREACHABLE();
break;
}
}
if (!have_photo_small || !have_photo_big) {
return nullptr;
}
bool has_video = !photo->video_sizes_.empty();
return make_tl_object<telegram_api::userProfilePhoto>(0, has_video, photo->id_, BufferSlice(), photo->dc_id_);
}
} // namespace td