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tdlight/td/telegram/Photo.cpp
levlam 1223c72741 Add class EncryptedFile.
2021-08-01 06:17:51 +03:00

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
//
// 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"
#include "td/telegram/secret_api.h"
#include "td/telegram/telegram_api.h"
#include "td/telegram/files/FileEncryptionKey.h"
#include "td/telegram/files/FileLocation.h"
#include "td/telegram/files/FileManager.h"
#include "td/telegram/net/DcId.h"
#include "td/utils/algorithm.h"
#include "td/utils/base64.h"
#include "td/utils/common.h"
#include "td/utils/format.h"
#include "td/utils/HttpUrl.h"
#include "td/utils/logging.h"
#include "td/utils/misc.h"
#include "td/utils/Random.h"
#include "td/utils/SliceBuilder.h"
#include <algorithm>
#include <cmath>
#include <limits>
namespace td {
static uint16 get_dimension(int32 size, const char *source) {
if (size < 0 || size > 65535) {
LOG(ERROR) << "Wrong image dimension = " << size << " from " << source;
return 0;
}
return narrow_cast<uint16>(size);
}
Dimensions get_dimensions(int32 width, int32 height, const char *source) {
Dimensions result;
result.width = get_dimension(width, source);
result.height = get_dimension(height, source);
if (result.width == 0 || result.height == 0) {
result.width = 0;
result.height = 0;
}
return result;
}
static uint32 get_pixel_count(const Dimensions &dimensions) {
return static_cast<uint32>(dimensions.width) * static_cast<uint32>(dimensions.height);
}
bool operator==(const Dimensions &lhs, const Dimensions &rhs) {
return lhs.width == rhs.width && lhs.height == rhs.height;
}
bool operator!=(const Dimensions &lhs, const Dimensions &rhs) {
return !(lhs == rhs);
}
StringBuilder &operator<<(StringBuilder &string_builder, const Dimensions &dimensions) {
return string_builder << "(" << dimensions.width << ", " << dimensions.height << ")";
}
td_api::object_ptr<td_api::minithumbnail> get_minithumbnail_object(const string &packed) {
if (packed.size() < 3) {
return nullptr;
}
if (packed[0] == '\x01') {
static const string header =
base64_decode(
"/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDACgcHiMeGSgjISMtKygwPGRBPDc3PHtYXUlkkYCZlo+AjIqgtObDoKrarYqMyP/L2u71////"
"m8H///"
"/6/+b9//j/2wBDASstLTw1PHZBQXb4pYyl+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj/"
"wAARCAAAAAADASIAAhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/"
"8QAtRAAAgEDAwIEAwUFBAQAAAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSo0NTY3ODk6Q0R"
"FRkd"
"ISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqDhIWGh4iJipKTlJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2"
"uHi4"
"+Tl5ufo6erx8vP09fb3+Pn6/8QAHwEAAwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoL/"
"8QAtREAAgECBAQDBAcFBAQAAQJ3AAECAxEEBSExBhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYkNOEl8RcYGRomJygpKjU2Nzg5OkN"
"ERUZ"
"HSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6goOEhYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3uLm6wsPExcbHyMnK0tPU1dbX2"
"Nna4"
"uPk5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwA=")
.move_as_ok();
static const string footer = base64_decode("/9k=").move_as_ok();
auto result = td_api::make_object<td_api::minithumbnail>();
result->height_ = static_cast<unsigned char>(packed[1]);
result->width_ = static_cast<unsigned char>(packed[2]);
result->data_ = PSTRING() << header.substr(0, 164) << packed[1] << header[165] << packed[2] << header.substr(167)
<< packed.substr(3) << footer;
return result;
}
return nullptr;
}
static td_api::object_ptr<td_api::ThumbnailFormat> get_thumbnail_format_object(PhotoFormat format) {
switch (format) {
case PhotoFormat::Jpeg:
return td_api::make_object<td_api::thumbnailFormatJpeg>();
case PhotoFormat::Png:
return td_api::make_object<td_api::thumbnailFormatPng>();
case PhotoFormat::Webp:
return td_api::make_object<td_api::thumbnailFormatWebp>();
case PhotoFormat::Gif:
return td_api::make_object<td_api::thumbnailFormatGif>();
case PhotoFormat::Tgs:
return td_api::make_object<td_api::thumbnailFormatTgs>();
case PhotoFormat::Mpeg4:
return td_api::make_object<td_api::thumbnailFormatMpeg4>();
default:
UNREACHABLE();
return nullptr;
}
}
static StringBuilder &operator<<(StringBuilder &string_builder, PhotoFormat format) {
switch (format) {
case PhotoFormat::Jpeg:
return string_builder << "jpg";
case PhotoFormat::Png:
return string_builder << "png";
case PhotoFormat::Webp:
return string_builder << "webp";
case PhotoFormat::Gif:
return string_builder << "gif";
case PhotoFormat::Tgs:
return string_builder << "tgs";
case PhotoFormat::Mpeg4:
return string_builder << "mp4";
default:
UNREACHABLE();
return string_builder;
}
}
static FileId register_photo(FileManager *file_manager, const PhotoSizeSource &source, int64 id, int64 access_hash,
std::string file_reference, DialogId owner_dialog_id, int32 file_size, DcId dc_id,
PhotoFormat format) {
LOG(DEBUG) << "Receive " << format << " photo " << id << " of type " << source.get_file_type() << " from " << dc_id;
auto suggested_name = PSTRING() << source.get_unique_name(id) << '.' << format;
auto file_location_source = owner_dialog_id.get_type() == DialogType::SecretChat ? FileLocationSource::FromUser
: FileLocationSource::FromServer;
return file_manager->register_remote(
FullRemoteFileLocation(source, id, access_hash, dc_id, std::move(file_reference)), file_location_source,
owner_dialog_id, file_size, 0, std::move(suggested_name));
}
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->flags_ & telegram_api::userProfilePhoto::HAS_VIDEO_MASK) != 0;
result.id = profile_photo->photo_id_;
result.minithumbnail = profile_photo->stripped_thumb_.as_slice().str();
result.small_file_id =
register_photo(file_manager, {DialogId(user_id), user_access_hash, false}, result.id, 0 /*access_hash*/,
"" /*file_reference*/, DialogId(), 0 /*file_size*/, dc_id, PhotoFormat::Jpeg);
result.big_file_id =
register_photo(file_manager, {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 operator==(const ProfilePhoto &lhs, const ProfilePhoto &rhs) {
bool location_differs = lhs.small_file_id != rhs.small_file_id || lhs.big_file_id != rhs.big_file_id;
bool id_differs = lhs.id != rhs.id;
if (location_differs) {
return false;
}
return lhs.has_animation == rhs.has_animation && lhs.minithumbnail == rhs.minithumbnail && !id_differs;
}
bool operator!=(const ProfilePhoto &lhs, const ProfilePhoto &rhs) {
return !(lhs == rhs);
}
StringBuilder &operator<<(StringBuilder &string_builder, const ProfilePhoto &profile_photo) {
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->flags_ & telegram_api::chatPhoto::HAS_VIDEO_MASK) != 0;
result.minithumbnail = chat_photo->stripped_thumb_.as_slice().str();
result.small_file_id = register_photo(file_manager, {dialog_id, dialog_access_hash, false}, chat_photo->photo_id_,
0, "", DialogId(), 0, dc_id, PhotoFormat::Jpeg);
result.big_file_id = register_photo(file_manager, {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;
}
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()) {
LOG(ERROR) << "Failed to convert " << photo << " to chat photo of " << dialog_id;
return DialogPhoto();
}
}
return result;
}
ProfilePhoto as_profile_photo(FileManager *file_manager, UserId user_id, int64 user_access_hash, const Photo &photo) {
ProfilePhoto result;
static_cast<DialogPhoto &>(result) = as_fake_dialog_photo(photo, DialogId(user_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());
remote.set_source({DialogId(user_id), user_access_hash, is_big});
return file_manager->register_remote(std::move(remote), FileLocationSource::FromServer, DialogId(),
file_view.size(), file_view.expected_size(), file_view.remote_name());
};
result.id = photo.id.get();
result.small_file_id = reregister_photo(false, result.small_file_id);
result.big_file_id = reregister_photo(true, result.big_file_id);
return result;
}
bool operator==(const DialogPhoto &lhs, const DialogPhoto &rhs) {
return lhs.small_file_id == rhs.small_file_id && lhs.big_file_id == rhs.big_file_id &&
lhs.minithumbnail == rhs.minithumbnail && lhs.has_animation == rhs.has_animation;
}
bool operator!=(const DialogPhoto &lhs, const DialogPhoto &rhs) {
return !(lhs == rhs);
}
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 << ">";
}
PhotoSize get_secret_thumbnail_photo_size(FileManager *file_manager, BufferSlice bytes, DialogId owner_dialog_id,
int32 width, int32 height) {
if (bytes.empty()) {
return PhotoSize();
}
PhotoSize res;
res.type = 't';
res.dimensions = get_dimensions(width, height, "get_secret_thumbnail_photo_size");
res.size = narrow_cast<int32>(bytes.size());
// generate some random remote location to save
auto dc_id = DcId::invalid();
auto photo_id = -(Random::secure_int64() & std::numeric_limits<int64>::max());
res.file_id = file_manager->register_remote(
FullRemoteFileLocation(PhotoSizeSource(FileType::EncryptedThumbnail, 't'), photo_id, 0, dc_id, string()),
FileLocationSource::FromServer, owner_dialog_id, res.size, 0,
PSTRING() << static_cast<uint64>(photo_id) << ".jpg");
file_manager->set_content(res.file_id, std::move(bytes));
return res;
}
Variant<PhotoSize, string> get_photo_size(FileManager *file_manager, PhotoSizeSource source, int64 id,
int64 access_hash, std::string file_reference, DcId dc_id,
DialogId owner_dialog_id, tl_object_ptr<telegram_api::PhotoSize> &&size_ptr,
PhotoFormat format) {
CHECK(size_ptr != nullptr);
string type;
PhotoSize res;
BufferSlice content;
switch (size_ptr->get_id()) {
case telegram_api::photoSizeEmpty::ID:
return std::move(res);
case telegram_api::photoSize::ID: {
auto size = move_tl_object_as<telegram_api::photoSize>(size_ptr);
type = std::move(size->type_);
res.dimensions = get_dimensions(size->w_, size->h_, "photoSize");
res.size = size->size_;
break;
}
case telegram_api::photoCachedSize::ID: {
auto size = move_tl_object_as<telegram_api::photoCachedSize>(size_ptr);
type = std::move(size->type_);
CHECK(size->bytes_.size() <= static_cast<size_t>(std::numeric_limits<int32>::max()));
res.dimensions = get_dimensions(size->w_, size->h_, "photoCachedSize");
res.size = static_cast<int32>(size->bytes_.size());
content = std::move(size->bytes_);
break;
}
case telegram_api::photoStrippedSize::ID: {
auto size = move_tl_object_as<telegram_api::photoStrippedSize>(size_ptr);
if (format != PhotoFormat::Jpeg) {
LOG(ERROR) << "Receive unexpected JPEG minithumbnail in photo " << id << " from " << source << " of format "
<< format;
return std::move(res);
}
return size->bytes_.as_slice().str();
}
case telegram_api::photoSizeProgressive::ID: {
auto size = move_tl_object_as<telegram_api::photoSizeProgressive>(size_ptr);
if (size->sizes_.empty()) {
LOG(ERROR) << "Receive photo " << id << " from " << source << " with empty size " << to_string(size);
return std::move(res);
}
std::sort(size->sizes_.begin(), size->sizes_.end());
type = std::move(size->type_);
res.dimensions = get_dimensions(size->w_, size->h_, "photoSizeProgressive");
res.size = size->sizes_.back();
size->sizes_.pop_back();
res.progressive_sizes = std::move(size->sizes_);
break;
}
case telegram_api::photoPathSize::ID: {
auto size = move_tl_object_as<telegram_api::photoPathSize>(size_ptr);
if (format != PhotoFormat::Tgs && format != PhotoFormat::Webp) {
LOG(ERROR) << "Receive unexpected SVG minithumbnail in photo " << id << " from " << source << " of format "
<< format;
return std::move(res);
}
return size->bytes_.as_slice().str();
}
default:
UNREACHABLE();
break;
}
if (type.size() != 1) {
LOG(ERROR) << "Wrong photoSize \"" << type << "\" " << res;
res.type = 0;
} else {
res.type = static_cast<uint8>(type[0]);
if (res.type >= 128) {
LOG(ERROR) << "Wrong photoSize \"" << type << "\" " << res;
res.type = 0;
}
}
if (source.get_type() == PhotoSizeSource::Type::Thumbnail) {
source.thumbnail().thumbnail_type = res.type;
}
res.file_id =
register_photo(file_manager, source, id, access_hash, file_reference, owner_dialog_id, res.size, dc_id, format);
if (!content.empty()) {
file_manager->set_content(res.file_id, std::move(content));
}
return std::move(res);
}
AnimationSize get_animation_size(FileManager *file_manager, PhotoSizeSource source, int64 id, int64 access_hash,
std::string file_reference, DcId dc_id, DialogId owner_dialog_id,
tl_object_ptr<telegram_api::videoSize> &&size) {
CHECK(size != nullptr);
AnimationSize res;
if (size->type_ != "v" && size->type_ != "u") {
LOG(ERROR) << "Wrong videoSize \"" << size->type_ << "\" in " << to_string(size);
}
res.type = static_cast<uint8>(size->type_[0]);
if (res.type >= 128) {
LOG(ERROR) << "Wrong videoSize \"" << res.type << "\" " << res;
res.type = 0;
}
res.dimensions = get_dimensions(size->w_, size->h_, "get_animation_size");
res.size = size->size_;
if ((size->flags_ & telegram_api::videoSize::VIDEO_START_TS_MASK) != 0) {
res.main_frame_timestamp = size->video_start_ts_;
}
if (source.get_type() == PhotoSizeSource::Type::Thumbnail) {
source.thumbnail().thumbnail_type = res.type;
}
res.file_id = register_photo(file_manager, source, id, access_hash, file_reference, owner_dialog_id, res.size, dc_id,
PhotoFormat::Mpeg4);
return res;
}
PhotoSize get_web_document_photo_size(FileManager *file_manager, FileType file_type, DialogId owner_dialog_id,
tl_object_ptr<telegram_api::WebDocument> web_document_ptr) {
if (web_document_ptr == nullptr) {
return {};
}
FileId file_id;
vector<tl_object_ptr<telegram_api::DocumentAttribute>> attributes;
int32 size = 0;
string mime_type;
switch (web_document_ptr->get_id()) {
case telegram_api::webDocument::ID: {
auto web_document = move_tl_object_as<telegram_api::webDocument>(web_document_ptr);
auto r_http_url = parse_url(web_document->url_);
if (r_http_url.is_error()) {
LOG(ERROR) << "Can't parse URL " << web_document->url_;
return {};
}
auto http_url = r_http_url.move_as_ok();
auto url = http_url.get_url();
file_id = file_manager->register_remote(FullRemoteFileLocation(file_type, url, web_document->access_hash_),
FileLocationSource::FromServer, owner_dialog_id, 0, web_document->size_,
get_url_query_file_name(http_url.query_));
size = web_document->size_;
mime_type = std::move(web_document->mime_type_);
attributes = std::move(web_document->attributes_);
break;
}
case telegram_api::webDocumentNoProxy::ID: {
auto web_document = move_tl_object_as<telegram_api::webDocumentNoProxy>(web_document_ptr);
if (web_document->url_.find('.') == string::npos) {
LOG(ERROR) << "Receive invalid URL " << web_document->url_;
return {};
}
auto r_file_id = file_manager->from_persistent_id(web_document->url_, file_type);
if (r_file_id.is_error()) {
LOG(ERROR) << "Can't register URL: " << r_file_id.error();
return {};
}
file_id = r_file_id.move_as_ok();
size = web_document->size_;
mime_type = std::move(web_document->mime_type_);
attributes = std::move(web_document->attributes_);
break;
}
default:
UNREACHABLE();
}
CHECK(file_id.is_valid());
bool is_animation = mime_type == "video/mp4";
bool is_gif = mime_type == "image/gif";
Dimensions dimensions;
for (auto &attribute : attributes) {
switch (attribute->get_id()) {
case telegram_api::documentAttributeImageSize::ID: {
auto image_size = move_tl_object_as<telegram_api::documentAttributeImageSize>(attribute);
dimensions = get_dimensions(image_size->w_, image_size->h_, "web documentAttributeImageSize");
break;
}
case telegram_api::documentAttributeAnimated::ID:
case telegram_api::documentAttributeHasStickers::ID:
case telegram_api::documentAttributeSticker::ID:
case telegram_api::documentAttributeVideo::ID:
case telegram_api::documentAttributeAudio::ID:
LOG(ERROR) << "Unexpected web document attribute " << to_string(attribute);
break;
case telegram_api::documentAttributeFilename::ID:
break;
default:
UNREACHABLE();
}
}
PhotoSize s;
s.type = is_animation ? 'v' : (is_gif ? 'g' : (file_type == FileType::Thumbnail ? 't' : 'n'));
s.dimensions = dimensions;
s.size = size;
s.file_id = file_id;
return s;
}
td_api::object_ptr<td_api::thumbnail> get_thumbnail_object(FileManager *file_manager, const PhotoSize &photo_size,
PhotoFormat format) {
if (!photo_size.file_id.is_valid()) {
return nullptr;
}
if (format == PhotoFormat::Jpeg && photo_size.type == 'g') {
format = PhotoFormat::Gif;
}
return td_api::make_object<td_api::thumbnail>(get_thumbnail_format_object(format), photo_size.dimensions.width,
photo_size.dimensions.height,
file_manager->get_file_object(photo_size.file_id));
}
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;
}
bool operator==(const PhotoSize &lhs, const PhotoSize &rhs) {
return lhs.type == rhs.type && lhs.dimensions == rhs.dimensions && lhs.size == rhs.size &&
lhs.file_id == rhs.file_id && lhs.progressive_sizes == rhs.progressive_sizes;
}
bool operator!=(const PhotoSize &lhs, const PhotoSize &rhs) {
return !(lhs == rhs);
}
bool operator<(const PhotoSize &lhs, const PhotoSize &rhs) {
if (lhs.size != rhs.size) {
return lhs.size < rhs.size;
}
auto lhs_pixels = get_pixel_count(lhs.dimensions);
auto rhs_pixels = get_pixel_count(rhs.dimensions);
if (lhs_pixels != rhs_pixels) {
return lhs_pixels < rhs_pixels;
}
int32 lhs_type = lhs.type == 't' ? -1 : lhs.type;
int32 rhs_type = rhs.type == 't' ? -1 : rhs.type;
if (lhs_type != rhs_type) {
return lhs_type < rhs_type;
}
if (lhs.file_id != rhs.file_id) {
return lhs.file_id.get() < rhs.file_id.get();
}
return lhs.dimensions.width < rhs.dimensions.width;
}
StringBuilder &operator<<(StringBuilder &string_builder, const PhotoSize &photo_size) {
return string_builder << "{type = " << photo_size.type << ", dimensions = " << photo_size.dimensions
<< ", size = " << photo_size.size << ", file_id = " << photo_size.file_id
<< ", progressive_sizes = " << photo_size.progressive_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);
}
bool operator==(const AnimationSize &lhs, const AnimationSize &rhs) {
return static_cast<const PhotoSize &>(lhs) == static_cast<const PhotoSize &>(rhs) &&
fabs(lhs.main_frame_timestamp - rhs.main_frame_timestamp) < 1e-3;
}
bool operator!=(const AnimationSize &lhs, const AnimationSize &rhs) {
return !(lhs == rhs);
}
StringBuilder &operator<<(StringBuilder &string_builder, const AnimationSize &animation_size) {
return string_builder << static_cast<const PhotoSize &>(animation_size) << " from "
<< animation_size.main_frame_timestamp;
}
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_, "get_encrypted_file_photo");
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->flags_ & telegram_api::photo::HAS_STICKERS_MASK) != 0;
if (res.is_empty()) {
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, {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>();
if (size.type == 0 || size.type == 't' || size.type == 'i' || 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, {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;
}
const AnimationSize *animation = photo.animations.empty() ? nullptr : &photo.animations.back();
return td_api::make_object<td_api::chatPhoto>(
photo.id.get(), photo.date, get_minithumbnail_object(photo.minithumbnail),
get_photo_sizes_object(file_manager, photo.photos), get_animated_chat_photo_object(file_manager, 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;
}
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 {};
}
return SecretInputMedia{
std::move(input_file),
make_tl_object<secret_api::decryptedMessageMediaPhoto>(
std::move(thumbnail), thumbnail_width, thumbnail_height, width, height, narrow_cast<int32>(file_view.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;
}
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) {
string_builder << "[ID = " << photo.id.get() << ", photos = " << format::as_array(photo.photos);
if (!photo.animations.empty()) {
string_builder << ", animations = " << format::as_array(photo.animations);
}
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;
}
int32 flags = 0;
if (!photo->video_sizes_.empty()) {
flags |= telegram_api::userProfilePhoto::HAS_VIDEO_MASK;
}
return make_tl_object<telegram_api::userProfilePhoto>(flags, false /*ignored*/, photo->id_, BufferSlice(),
photo->dc_id_);
}
} // namespace td
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