448 lines
17 KiB
C++
448 lines
17 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#include "td/telegram/PhotoSize.h"
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#include "td/telegram/files/FileLocation.h"
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#include "td/telegram/files/FileManager.h"
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#include "td/utils/base64.h"
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#include "td/utils/HttpUrl.h"
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#include "td/utils/logging.h"
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#include "td/utils/misc.h"
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#include "td/utils/Random.h"
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#include "td/utils/SliceBuilder.h"
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#include <algorithm>
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#include <cmath>
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#include <limits>
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namespace td {
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static uint16 get_dimension(int32 size, const char *source) {
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if (size < 0 || size > 65535) {
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LOG(ERROR) << "Wrong image dimension = " << size << " from " << source;
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return 0;
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}
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return narrow_cast<uint16>(size);
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}
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Dimensions get_dimensions(int32 width, int32 height, const char *source) {
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Dimensions result;
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result.width = get_dimension(width, source);
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result.height = get_dimension(height, source);
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if (result.width == 0 || result.height == 0) {
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result.width = 0;
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result.height = 0;
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}
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return result;
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}
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static uint32 get_pixel_count(const Dimensions &dimensions) {
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return static_cast<uint32>(dimensions.width) * static_cast<uint32>(dimensions.height);
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}
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bool operator==(const Dimensions &lhs, const Dimensions &rhs) {
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return lhs.width == rhs.width && lhs.height == rhs.height;
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}
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bool operator!=(const Dimensions &lhs, const Dimensions &rhs) {
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return !(lhs == rhs);
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}
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StringBuilder &operator<<(StringBuilder &string_builder, const Dimensions &dimensions) {
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return string_builder << "(" << dimensions.width << ", " << dimensions.height << ")";
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}
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td_api::object_ptr<td_api::minithumbnail> get_minithumbnail_object(const string &packed) {
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if (packed.size() < 3) {
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return nullptr;
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}
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if (packed[0] == '\x01') {
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static const string header =
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base64_decode(
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"/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDACgcHiMeGSgjISMtKygwPGRBPDc3PHtYXUlkkYCZlo+AjIqgtObDoKrarYqMyP/L2u71////"
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"m8H///"
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"/6/+b9//j/2wBDASstLTw1PHZBQXb4pYyl+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj/"
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"wAARCAAAAAADASIAAhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/"
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"8QAtRAAAgEDAwIEAwUFBAQAAAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSo0NTY3ODk6Q0R"
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"FRkd"
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"ISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqDhIWGh4iJipKTlJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2"
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"uHi4"
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"+Tl5ufo6erx8vP09fb3+Pn6/8QAHwEAAwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoL/"
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"8QAtREAAgECBAQDBAcFBAQAAQJ3AAECAxEEBSExBhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYkNOEl8RcYGRomJygpKjU2Nzg5OkN"
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"ERUZ"
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"HSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6goOEhYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3uLm6wsPExcbHyMnK0tPU1dbX2"
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"Nna4"
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"uPk5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwA=")
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.move_as_ok();
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static const string footer = base64_decode("/9k=").move_as_ok();
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auto result = td_api::make_object<td_api::minithumbnail>();
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result->height_ = static_cast<unsigned char>(packed[1]);
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result->width_ = static_cast<unsigned char>(packed[2]);
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result->data_ = PSTRING() << header.substr(0, 164) << packed[1] << header[165] << packed[2] << header.substr(167)
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<< packed.substr(3) << footer;
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return result;
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}
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return nullptr;
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}
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static td_api::object_ptr<td_api::ThumbnailFormat> get_thumbnail_format_object(PhotoFormat format) {
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switch (format) {
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case PhotoFormat::Jpeg:
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return td_api::make_object<td_api::thumbnailFormatJpeg>();
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case PhotoFormat::Png:
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return td_api::make_object<td_api::thumbnailFormatPng>();
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case PhotoFormat::Webp:
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return td_api::make_object<td_api::thumbnailFormatWebp>();
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case PhotoFormat::Gif:
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return td_api::make_object<td_api::thumbnailFormatGif>();
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case PhotoFormat::Tgs:
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return td_api::make_object<td_api::thumbnailFormatTgs>();
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case PhotoFormat::Mpeg4:
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return td_api::make_object<td_api::thumbnailFormatMpeg4>();
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case PhotoFormat::Webm:
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return td_api::make_object<td_api::thumbnailFormatWebm>();
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default:
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UNREACHABLE();
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return nullptr;
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}
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}
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static StringBuilder &operator<<(StringBuilder &string_builder, PhotoFormat format) {
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switch (format) {
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case PhotoFormat::Jpeg:
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return string_builder << "jpg";
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case PhotoFormat::Png:
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return string_builder << "png";
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case PhotoFormat::Webp:
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return string_builder << "webp";
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case PhotoFormat::Gif:
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return string_builder << "gif";
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case PhotoFormat::Tgs:
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return string_builder << "tgs";
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case PhotoFormat::Mpeg4:
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return string_builder << "mp4";
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case PhotoFormat::Webm:
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return string_builder << "webm";
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default:
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UNREACHABLE();
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return string_builder;
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}
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}
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FileId register_photo_size(FileManager *file_manager, const PhotoSizeSource &source, int64 id, int64 access_hash,
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string file_reference, DialogId owner_dialog_id, int32 file_size, DcId dc_id,
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PhotoFormat format) {
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LOG(DEBUG) << "Receive " << format << " photo " << id << " of type " << source.get_file_type("register_photo_size")
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<< " from " << dc_id;
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auto suggested_name = PSTRING() << source.get_unique_name(id) << '.' << format;
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auto file_location_source = owner_dialog_id.get_type() == DialogType::SecretChat ? FileLocationSource::FromUser
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: FileLocationSource::FromServer;
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return file_manager->register_remote(
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FullRemoteFileLocation(source, id, access_hash, dc_id, std::move(file_reference)), file_location_source,
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owner_dialog_id, file_size, 0, std::move(suggested_name));
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}
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PhotoSize get_secret_thumbnail_photo_size(FileManager *file_manager, BufferSlice bytes, DialogId owner_dialog_id,
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int32 width, int32 height) {
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if (bytes.empty()) {
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return PhotoSize();
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}
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PhotoSize res;
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res.type = 't';
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res.dimensions = get_dimensions(width, height, "get_secret_thumbnail_photo_size");
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res.size = narrow_cast<int32>(bytes.size());
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// generate some random remote location to save
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auto dc_id = DcId::invalid();
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auto photo_id = -(Random::secure_int64() & std::numeric_limits<int64>::max());
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res.file_id = file_manager->register_remote(
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FullRemoteFileLocation(PhotoSizeSource::thumbnail(FileType::EncryptedThumbnail, 't'), photo_id, 0, dc_id,
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string()),
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FileLocationSource::FromServer, owner_dialog_id, res.size, 0,
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PSTRING() << static_cast<uint64>(photo_id) << ".jpg");
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file_manager->set_content(res.file_id, std::move(bytes));
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return res;
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}
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Variant<PhotoSize, string> get_photo_size(FileManager *file_manager, PhotoSizeSource source, int64 id,
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int64 access_hash, std::string file_reference, DcId dc_id,
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DialogId owner_dialog_id, tl_object_ptr<telegram_api::PhotoSize> &&size_ptr,
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PhotoFormat format) {
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CHECK(size_ptr != nullptr);
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string type;
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PhotoSize res;
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BufferSlice content;
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switch (size_ptr->get_id()) {
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case telegram_api::photoSizeEmpty::ID:
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return std::move(res);
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case telegram_api::photoSize::ID: {
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auto size = move_tl_object_as<telegram_api::photoSize>(size_ptr);
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type = std::move(size->type_);
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res.dimensions = get_dimensions(size->w_, size->h_, "photoSize");
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res.size = size->size_;
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break;
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}
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case telegram_api::photoCachedSize::ID: {
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auto size = move_tl_object_as<telegram_api::photoCachedSize>(size_ptr);
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type = std::move(size->type_);
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CHECK(size->bytes_.size() <= static_cast<size_t>(std::numeric_limits<int32>::max()));
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res.dimensions = get_dimensions(size->w_, size->h_, "photoCachedSize");
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res.size = static_cast<int32>(size->bytes_.size());
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content = std::move(size->bytes_);
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break;
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}
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case telegram_api::photoStrippedSize::ID: {
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auto size = move_tl_object_as<telegram_api::photoStrippedSize>(size_ptr);
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if (format != PhotoFormat::Jpeg) {
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LOG(ERROR) << "Receive unexpected JPEG minithumbnail in photo " << id << " from " << source << " of format "
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<< format;
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return std::move(res);
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}
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return size->bytes_.as_slice().str();
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}
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case telegram_api::photoSizeProgressive::ID: {
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auto size = move_tl_object_as<telegram_api::photoSizeProgressive>(size_ptr);
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if (size->sizes_.empty()) {
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LOG(ERROR) << "Receive photo " << id << " from " << source << " with empty size " << to_string(size);
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return std::move(res);
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}
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std::sort(size->sizes_.begin(), size->sizes_.end());
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type = std::move(size->type_);
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res.dimensions = get_dimensions(size->w_, size->h_, "photoSizeProgressive");
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res.size = size->sizes_.back();
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size->sizes_.pop_back();
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res.progressive_sizes = std::move(size->sizes_);
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break;
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}
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case telegram_api::photoPathSize::ID: {
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auto size = move_tl_object_as<telegram_api::photoPathSize>(size_ptr);
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if (format != PhotoFormat::Tgs && format != PhotoFormat::Webp && format != PhotoFormat::Webm) {
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LOG(ERROR) << "Receive unexpected SVG minithumbnail in photo " << id << " from " << source << " of format "
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<< format;
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return std::move(res);
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}
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return size->bytes_.as_slice().str();
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}
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default:
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UNREACHABLE();
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break;
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}
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if (type.size() != 1) {
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LOG(ERROR) << "Wrong photoSize \"" << type << "\" " << res;
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res.type = 0;
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} else {
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res.type = static_cast<uint8>(type[0]);
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if (res.type >= 128) {
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LOG(ERROR) << "Wrong photoSize \"" << type << "\" " << res;
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res.type = 0;
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}
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}
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if (source.get_type("get_photo_size") == PhotoSizeSource::Type::Thumbnail) {
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source.thumbnail().thumbnail_type = res.type;
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}
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res.file_id = register_photo_size(file_manager, source, id, access_hash, std::move(file_reference), owner_dialog_id,
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res.size, dc_id, format);
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if (!content.empty()) {
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file_manager->set_content(res.file_id, std::move(content));
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}
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return std::move(res);
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}
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AnimationSize get_animation_size(FileManager *file_manager, PhotoSizeSource source, int64 id, int64 access_hash,
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std::string file_reference, DcId dc_id, DialogId owner_dialog_id,
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tl_object_ptr<telegram_api::videoSize> &&size) {
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CHECK(size != nullptr);
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AnimationSize res;
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if (size->type_ != "v" && size->type_ != "u") {
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LOG(ERROR) << "Wrong videoSize \"" << size->type_ << "\" in " << to_string(size);
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}
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res.type = static_cast<uint8>(size->type_[0]);
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if (res.type >= 128) {
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LOG(ERROR) << "Wrong videoSize \"" << res.type << "\" " << res;
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res.type = 0;
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}
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res.dimensions = get_dimensions(size->w_, size->h_, "get_animation_size");
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res.size = size->size_;
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if ((size->flags_ & telegram_api::videoSize::VIDEO_START_TS_MASK) != 0) {
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res.main_frame_timestamp = size->video_start_ts_;
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}
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if (source.get_type("get_animation_size") == PhotoSizeSource::Type::Thumbnail) {
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source.thumbnail().thumbnail_type = res.type;
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}
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res.file_id = register_photo_size(file_manager, source, id, access_hash, std::move(file_reference), owner_dialog_id,
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res.size, dc_id, PhotoFormat::Mpeg4);
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return res;
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}
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PhotoSize get_web_document_photo_size(FileManager *file_manager, FileType file_type, DialogId owner_dialog_id,
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tl_object_ptr<telegram_api::WebDocument> web_document_ptr) {
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if (web_document_ptr == nullptr) {
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return {};
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}
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FileId file_id;
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vector<tl_object_ptr<telegram_api::DocumentAttribute>> attributes;
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int32 size = 0;
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string mime_type;
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switch (web_document_ptr->get_id()) {
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case telegram_api::webDocument::ID: {
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auto web_document = move_tl_object_as<telegram_api::webDocument>(web_document_ptr);
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auto r_http_url = parse_url(web_document->url_);
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if (r_http_url.is_error()) {
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LOG(ERROR) << "Can't parse URL " << web_document->url_;
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return {};
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}
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auto http_url = r_http_url.move_as_ok();
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auto url = http_url.get_url();
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file_id = file_manager->register_remote(FullRemoteFileLocation(file_type, url, web_document->access_hash_),
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FileLocationSource::FromServer, owner_dialog_id, 0, web_document->size_,
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get_url_query_file_name(http_url.query_));
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size = web_document->size_;
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mime_type = std::move(web_document->mime_type_);
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attributes = std::move(web_document->attributes_);
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break;
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}
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case telegram_api::webDocumentNoProxy::ID: {
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auto web_document = move_tl_object_as<telegram_api::webDocumentNoProxy>(web_document_ptr);
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if (web_document->url_.find('.') == string::npos) {
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LOG(ERROR) << "Receive invalid URL " << web_document->url_;
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return {};
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}
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auto r_file_id = file_manager->from_persistent_id(web_document->url_, file_type);
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if (r_file_id.is_error()) {
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LOG(ERROR) << "Can't register URL: " << r_file_id.error();
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return {};
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}
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file_id = r_file_id.move_as_ok();
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size = web_document->size_;
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mime_type = std::move(web_document->mime_type_);
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attributes = std::move(web_document->attributes_);
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break;
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}
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default:
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UNREACHABLE();
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}
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CHECK(file_id.is_valid());
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bool is_animation = mime_type == "video/mp4";
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bool is_gif = mime_type == "image/gif";
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Dimensions dimensions;
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for (auto &attribute : attributes) {
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switch (attribute->get_id()) {
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case telegram_api::documentAttributeImageSize::ID: {
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auto image_size = move_tl_object_as<telegram_api::documentAttributeImageSize>(attribute);
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dimensions = get_dimensions(image_size->w_, image_size->h_, "web documentAttributeImageSize");
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break;
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}
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case telegram_api::documentAttributeAnimated::ID:
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case telegram_api::documentAttributeHasStickers::ID:
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case telegram_api::documentAttributeSticker::ID:
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case telegram_api::documentAttributeVideo::ID:
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case telegram_api::documentAttributeAudio::ID:
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LOG(ERROR) << "Unexpected web document attribute " << to_string(attribute);
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break;
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case telegram_api::documentAttributeFilename::ID:
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break;
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default:
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UNREACHABLE();
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}
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}
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PhotoSize s;
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s.type = is_animation ? 'v' : (is_gif ? 'g' : (file_type == FileType::Thumbnail ? 't' : 'n'));
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s.dimensions = dimensions;
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s.size = size;
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s.file_id = file_id;
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return s;
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}
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td_api::object_ptr<td_api::thumbnail> get_thumbnail_object(FileManager *file_manager, const PhotoSize &photo_size,
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PhotoFormat format) {
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if (!photo_size.file_id.is_valid()) {
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return nullptr;
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}
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if (format == PhotoFormat::Jpeg && photo_size.type == 'g') {
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format = PhotoFormat::Gif;
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}
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return td_api::make_object<td_api::thumbnail>(get_thumbnail_format_object(format), photo_size.dimensions.width,
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photo_size.dimensions.height,
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file_manager->get_file_object(photo_size.file_id));
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}
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bool operator==(const PhotoSize &lhs, const PhotoSize &rhs) {
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return lhs.type == rhs.type && lhs.dimensions == rhs.dimensions && lhs.size == rhs.size &&
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lhs.file_id == rhs.file_id && lhs.progressive_sizes == rhs.progressive_sizes;
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}
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bool operator!=(const PhotoSize &lhs, const PhotoSize &rhs) {
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return !(lhs == rhs);
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}
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bool operator<(const PhotoSize &lhs, const PhotoSize &rhs) {
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if (lhs.size != rhs.size) {
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return lhs.size < rhs.size;
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}
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auto lhs_pixels = get_pixel_count(lhs.dimensions);
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auto rhs_pixels = get_pixel_count(rhs.dimensions);
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if (lhs_pixels != rhs_pixels) {
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return lhs_pixels < rhs_pixels;
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}
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int32 lhs_type = lhs.type == 't' ? -1 : lhs.type;
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int32 rhs_type = rhs.type == 't' ? -1 : rhs.type;
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if (lhs_type != rhs_type) {
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return lhs_type < rhs_type;
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}
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if (lhs.file_id != rhs.file_id) {
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return lhs.file_id.get() < rhs.file_id.get();
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}
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return lhs.dimensions.width < rhs.dimensions.width;
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}
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StringBuilder &operator<<(StringBuilder &string_builder, const PhotoSize &photo_size) {
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return string_builder << "{type = " << photo_size.type << ", dimensions = " << photo_size.dimensions
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<< ", size = " << photo_size.size << ", file_id = " << photo_size.file_id
|
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<< ", progressive_sizes = " << photo_size.progressive_sizes << "}";
|
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}
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bool operator==(const AnimationSize &lhs, const AnimationSize &rhs) {
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return static_cast<const PhotoSize &>(lhs) == static_cast<const PhotoSize &>(rhs) &&
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fabs(lhs.main_frame_timestamp - rhs.main_frame_timestamp) < 1e-3;
|
|
}
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|
|
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bool operator!=(const AnimationSize &lhs, const AnimationSize &rhs) {
|
|
return !(lhs == rhs);
|
|
}
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|
|
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StringBuilder &operator<<(StringBuilder &string_builder, const AnimationSize &animation_size) {
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|
return string_builder << static_cast<const PhotoSize &>(animation_size) << " from "
|
|
<< animation_size.main_frame_timestamp;
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|
}
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|
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} // namespace td
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