664 lines
25 KiB
C++
664 lines
25 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
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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/DocumentsManager.h"
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#include "td/telegram/AnimationsManager.h"
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#include "td/telegram/AudiosManager.h"
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#include "td/telegram/Document.h"
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#include "td/telegram/files/FileEncryptionKey.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/telegram/files/FileType.h"
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#include "td/telegram/net/DcId.h"
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#include "td/telegram/Photo.h"
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#include "td/telegram/StickersManager.h"
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#include "td/telegram/Td.h"
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#include "td/telegram/VideoNotesManager.h"
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#include "td/telegram/VideosManager.h"
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#include "td/telegram/VoiceNotesManager.h"
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#include "td/telegram/secret_api.h"
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#include "td/telegram/td_api.h"
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#include "td/telegram/telegram_api.h"
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#include "td/utils/common.h"
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#include "td/utils/format.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/MimeType.h"
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#include "td/utils/misc.h"
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#include "td/utils/PathView.h"
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#include "td/utils/Random.h"
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#include "td/utils/Slice.h"
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#include "td/utils/StackAllocator.h"
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#include "td/utils/Status.h"
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#include "td/utils/StringBuilder.h"
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#include "td/utils/utf8.h"
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#include <limits>
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namespace td {
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DocumentsManager::DocumentsManager(Td *td) : td_(td) {
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}
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tl_object_ptr<td_api::document> DocumentsManager::get_document_object(FileId file_id) {
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if (!file_id.is_valid()) {
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return nullptr;
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}
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LOG(INFO) << "Return document " << file_id << " object";
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auto &document = documents_[file_id];
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LOG_CHECK(document != nullptr) << tag("file_id", file_id);
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document->is_changed = false;
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return make_tl_object<td_api::document>(document->file_name, document->mime_type,
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get_minithumbnail_object(document->minithumbnail),
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get_photo_size_object(td_->file_manager_.get(), &document->thumbnail),
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td_->file_manager_->get_file_object(file_id));
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}
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Document DocumentsManager::on_get_document(RemoteDocument remote_document, DialogId owner_dialog_id,
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MultiPromiseActor *load_data_multipromise_ptr,
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Document::Type default_document_type, bool is_background, bool is_pattern) {
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tl_object_ptr<telegram_api::documentAttributeAnimated> animated;
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tl_object_ptr<telegram_api::documentAttributeVideo> video;
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tl_object_ptr<telegram_api::documentAttributeAudio> audio;
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tl_object_ptr<telegram_api::documentAttributeSticker> sticker;
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Dimensions dimensions;
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string file_name;
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bool has_stickers = false;
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int32 type_attributes = 0;
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for (auto &attribute : remote_document.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_);
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break;
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}
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case telegram_api::documentAttributeAnimated::ID:
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animated = move_tl_object_as<telegram_api::documentAttributeAnimated>(attribute);
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type_attributes++;
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break;
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case telegram_api::documentAttributeSticker::ID:
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sticker = move_tl_object_as<telegram_api::documentAttributeSticker>(attribute);
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type_attributes++;
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break;
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case telegram_api::documentAttributeVideo::ID:
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video = move_tl_object_as<telegram_api::documentAttributeVideo>(attribute);
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type_attributes++;
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break;
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case telegram_api::documentAttributeAudio::ID:
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audio = move_tl_object_as<telegram_api::documentAttributeAudio>(attribute);
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type_attributes++;
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break;
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case telegram_api::documentAttributeFilename::ID:
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file_name = std::move(static_cast<telegram_api::documentAttributeFilename *>(attribute.get())->file_name_);
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break;
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case telegram_api::documentAttributeHasStickers::ID:
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has_stickers = true;
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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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int32 video_duration = 0;
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if (video != nullptr) {
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video_duration = video->duration_;
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if (dimensions.width == 0) {
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dimensions = get_dimensions(video->w_, video->h_);
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}
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if (animated != nullptr) {
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// video animation
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type_attributes--;
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video = nullptr;
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}
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}
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if (animated != nullptr && audio != nullptr) {
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// animation send as audio
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type_attributes--;
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audio = nullptr;
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}
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if (animated != nullptr && sticker != nullptr) {
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// animation send as sticker
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type_attributes--;
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sticker = nullptr;
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}
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auto document_type = default_document_type;
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FileType file_type = FileType::Document;
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Slice default_extension;
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bool supports_streaming = false;
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bool has_webp_thumbnail = false;
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if (type_attributes == 1 || default_document_type != Document::Type::General) { // not a general document
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if (animated != nullptr || default_document_type == Document::Type::Animation) {
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document_type = Document::Type::Animation;
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file_type = FileType::Animation;
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default_extension = Slice("mp4");
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} else if (audio != nullptr || default_document_type == Document::Type::Audio ||
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default_document_type == Document::Type::VoiceNote) {
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bool is_voice_note = default_document_type == Document::Type::VoiceNote;
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if (audio != nullptr) {
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is_voice_note = (audio->flags_ & telegram_api::documentAttributeAudio::VOICE_MASK) != 0;
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}
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if (is_voice_note) {
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document_type = Document::Type::VoiceNote;
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file_type = FileType::VoiceNote;
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default_extension = Slice("oga");
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file_name.clear();
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} else {
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document_type = Document::Type::Audio;
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file_type = FileType::Audio;
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default_extension = Slice("mp3");
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}
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} else if (sticker != nullptr || default_document_type == Document::Type::Sticker) {
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document_type = Document::Type::Sticker;
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file_type = FileType::Sticker;
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default_extension = Slice("webp");
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owner_dialog_id = DialogId();
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file_name.clear();
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has_webp_thumbnail = td_->stickers_manager_->has_webp_thumbnail(sticker);
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} else if (video != nullptr || default_document_type == Document::Type::Video ||
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default_document_type == Document::Type::VideoNote) {
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bool is_video_note = default_document_type == Document::Type::VideoNote;
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if (video != nullptr) {
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is_video_note = (video->flags_ & telegram_api::documentAttributeVideo::ROUND_MESSAGE_MASK) != 0;
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if (!is_video_note) {
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supports_streaming = (video->flags_ & telegram_api::documentAttributeVideo::SUPPORTS_STREAMING_MASK) != 0;
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}
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}
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if (is_video_note) {
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document_type = Document::Type::VideoNote;
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file_type = FileType::VideoNote;
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file_name.clear();
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} else {
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document_type = Document::Type::Video;
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file_type = FileType::Video;
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}
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default_extension = Slice("mp4");
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}
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} else if (type_attributes >= 2) {
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LOG(WARNING) << "Receive document with more than 1 type attribute: animated = " << to_string(animated)
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<< ", sticker = " << to_string(sticker) << ", video = " << to_string(video)
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<< ", audio = " << to_string(audio) << ", file_name = " << file_name << ", dimensions = " << dimensions
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<< ", has_stickers = " << has_stickers;
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}
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bool has_png_thumbnail = false;
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if (is_background) {
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if (document_type != Document::Type::General) {
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LOG(ERROR) << "Receive background of type " << document_type;
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document_type = Document::Type::General;
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}
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file_type = FileType::Background;
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if (is_pattern) {
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default_extension = Slice("png");
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has_png_thumbnail = true;
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} else {
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default_extension = Slice("jpg");
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}
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}
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int64 id;
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int64 access_hash;
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int32 dc_id;
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int32 size;
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string mime_type;
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string file_reference;
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string minithumbnail;
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PhotoSize thumbnail;
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FileEncryptionKey encryption_key;
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bool is_animated_sticker = false;
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bool is_web = false;
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bool is_web_no_proxy = false;
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string url;
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FileLocationSource source = FileLocationSource::FromServer;
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auto fix_animated_sticker_type = [&] {
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if (mime_type != "application/x-tgsticker") {
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return;
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}
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is_animated_sticker = true;
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if (document_type == Document::Type::General) {
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document_type = Document::Type::Sticker;
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file_type = FileType::Sticker;
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default_extension = Slice("tgs");
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owner_dialog_id = DialogId();
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file_name.clear();
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}
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};
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if (remote_document.document != nullptr) {
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auto document = std::move(remote_document.document);
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id = document->id_;
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access_hash = document->access_hash_;
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dc_id = document->dc_id_;
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size = document->size_;
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mime_type = std::move(document->mime_type_);
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file_reference = document->file_reference_.as_slice().str();
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fix_animated_sticker_type();
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if (owner_dialog_id.get_type() == DialogType::SecretChat) {
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// secret_api::decryptedMessageMediaExternalDocument
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if (document_type != Document::Type::Sticker) {
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LOG(ERROR) << "Receive " << document_type << " in " << owner_dialog_id;
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return {};
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}
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source = FileLocationSource::FromUser;
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}
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if (document_type != Document::Type::VoiceNote) {
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for (auto &thumb : document->thumbs_) {
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auto photo_size = get_photo_size(td_->file_manager_.get(), {FileType::Thumbnail, 0}, id, access_hash,
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file_reference, DcId::create(dc_id), owner_dialog_id, std::move(thumb),
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has_webp_thumbnail, has_png_thumbnail);
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if (photo_size.get_offset() == 0) {
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thumbnail = std::move(photo_size.get<0>());
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} else {
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minithumbnail = std::move(photo_size.get<1>());
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}
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}
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}
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} else if (remote_document.secret_file != nullptr) {
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CHECK(remote_document.secret_document != nullptr);
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auto file = std::move(remote_document.secret_file);
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auto document = std::move(remote_document.secret_document);
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id = file->id_;
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access_hash = file->access_hash_;
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dc_id = file->dc_id_;
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size = document->size_;
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mime_type = std::move(document->mime_type_);
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file_type = FileType::Encrypted;
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encryption_key = FileEncryptionKey{document->key_.as_slice(), document->iv_.as_slice()};
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if (encryption_key.empty()) {
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return {};
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}
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if (document_type != Document::Type::VoiceNote) {
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thumbnail = get_secret_thumbnail_photo_size(td_->file_manager_.get(), std::move(document->thumb_),
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owner_dialog_id, document->thumb_w_, document->thumb_h_);
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}
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} else {
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is_web = true;
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id = Random::fast(0, std::numeric_limits<int32>::max());
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dc_id = 0;
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access_hash = 0;
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thumbnail = std::move(remote_document.thumbnail);
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auto web_document_ptr = std::move(remote_document.web_document);
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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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access_hash = web_document->access_hash_;
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url = http_url.get_url();
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file_name = get_url_query_file_name(http_url.query_);
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mime_type = std::move(web_document->mime_type_);
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size = web_document->size_;
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break;
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}
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case telegram_api::webDocumentNoProxy::ID: {
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is_web_no_proxy = true;
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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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url = std::move(web_document->url_);
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file_name = get_url_file_name(url);
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mime_type = std::move(web_document->mime_type_);
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size = web_document->size_;
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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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}
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LOG(DEBUG) << "Receive document with id = " << id << " of type " << document_type;
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if (!is_web && !DcId::is_valid(dc_id)) {
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LOG(ERROR) << "Wrong dc_id = " << dc_id;
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return {};
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}
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auto suggested_file_name = file_name;
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if (suggested_file_name.empty()) {
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suggested_file_name = to_string(static_cast<uint64>(id));
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auto extension = MimeType::to_extension(mime_type, default_extension);
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if (!extension.empty()) {
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suggested_file_name += '.';
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suggested_file_name += extension;
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}
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}
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FileId file_id;
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if (!is_web) {
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file_id = td_->file_manager_->register_remote(
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FullRemoteFileLocation(file_type, id, access_hash, DcId::internal(dc_id), std::move(file_reference)), source,
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owner_dialog_id, size, 0, suggested_file_name);
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if (!encryption_key.empty()) {
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td_->file_manager_->set_encryption_key(file_id, std::move(encryption_key));
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}
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} else if (!is_web_no_proxy) {
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file_id = td_->file_manager_->register_remote(FullRemoteFileLocation(file_type, url, access_hash), source,
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owner_dialog_id, 0, size, file_name);
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} else {
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auto r_file_id = td_->file_manager_->from_persistent_id(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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}
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if (dimensions.width != 0 && thumbnail.dimensions.width != 0) {
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if ((thumbnail.dimensions.width < thumbnail.dimensions.height && dimensions.width > dimensions.height) ||
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(thumbnail.dimensions.width > thumbnail.dimensions.height && dimensions.width < dimensions.height)) {
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// fix for wrong dimensions specified by the Android application
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std::swap(dimensions.width, dimensions.height);
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}
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}
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switch (document_type) {
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case Document::Type::Animation:
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// TODO use has_stickers
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td_->animations_manager_->create_animation(file_id, std::move(minithumbnail), std::move(thumbnail),
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std::move(file_name), std::move(mime_type), video_duration, dimensions,
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!is_web);
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break;
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case Document::Type::Audio: {
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int32 duration = 0;
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string title;
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string performer;
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if (audio != nullptr) {
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duration = audio->duration_;
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title = std::move(audio->title_);
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performer = std::move(audio->performer_);
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}
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td_->audios_manager_->create_audio(file_id, std::move(minithumbnail), std::move(thumbnail), std::move(file_name),
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std::move(mime_type), duration, std::move(title), std::move(performer),
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!is_web);
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break;
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}
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case Document::Type::General:
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create_document(file_id, std::move(minithumbnail), std::move(thumbnail), std::move(file_name),
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std::move(mime_type), !is_web);
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break;
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case Document::Type::Sticker:
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td_->stickers_manager_->create_sticker(file_id, std::move(thumbnail), dimensions, std::move(sticker),
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is_animated_sticker, load_data_multipromise_ptr);
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break;
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case Document::Type::Video:
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td_->videos_manager_->create_video(file_id, std::move(minithumbnail), std::move(thumbnail), has_stickers,
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vector<FileId>(), std::move(file_name), std::move(mime_type), video_duration,
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dimensions, supports_streaming, !is_web);
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break;
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case Document::Type::VideoNote:
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td_->video_notes_manager_->create_video_note(file_id, std::move(minithumbnail), std::move(thumbnail),
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video_duration, dimensions, !is_web);
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break;
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case Document::Type::VoiceNote: {
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int32 duration = 0;
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string waveform;
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if (audio != nullptr) {
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duration = audio->duration_;
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waveform = audio->waveform_.as_slice().str();
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}
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td_->voice_notes_manager_->create_voice_note(file_id, std::move(mime_type), duration, std::move(waveform),
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!is_web);
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break;
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}
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case Document::Type::Unknown:
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default:
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UNREACHABLE();
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}
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return {document_type, file_id};
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}
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FileId DocumentsManager::on_get_document(unique_ptr<GeneralDocument> new_document, bool replace) {
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auto file_id = new_document->file_id;
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CHECK(file_id.is_valid());
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LOG(INFO) << "Receive document " << file_id;
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auto &d = documents_[new_document->file_id];
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if (d == nullptr) {
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d = std::move(new_document);
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} else if (replace) {
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CHECK(d->file_id == new_document->file_id);
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if (d->mime_type != new_document->mime_type) {
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LOG(DEBUG) << "Document " << file_id << " mime_type has changed";
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d->mime_type = new_document->mime_type;
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d->is_changed = true;
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}
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if (d->file_name != new_document->file_name) {
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LOG(DEBUG) << "Document " << file_id << " file_name has changed";
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d->file_name = new_document->file_name;
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d->is_changed = true;
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}
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if (d->minithumbnail != new_document->minithumbnail) {
|
|
d->minithumbnail = std::move(new_document->minithumbnail);
|
|
d->is_changed = true;
|
|
}
|
|
if (d->thumbnail != new_document->thumbnail) {
|
|
if (!d->thumbnail.file_id.is_valid()) {
|
|
LOG(DEBUG) << "Document " << file_id << " thumbnail has changed";
|
|
} else {
|
|
LOG(INFO) << "Document " << file_id << " thumbnail has changed from " << d->thumbnail << " to "
|
|
<< new_document->thumbnail;
|
|
}
|
|
d->thumbnail = new_document->thumbnail;
|
|
d->is_changed = true;
|
|
}
|
|
}
|
|
|
|
return file_id;
|
|
}
|
|
|
|
void DocumentsManager::create_document(FileId file_id, string minithumbnail, PhotoSize thumbnail, string file_name,
|
|
string mime_type, bool replace) {
|
|
auto d = make_unique<GeneralDocument>();
|
|
d->file_id = file_id;
|
|
d->file_name = std::move(file_name);
|
|
d->mime_type = std::move(mime_type);
|
|
d->minithumbnail = std::move(minithumbnail);
|
|
d->thumbnail = std::move(thumbnail);
|
|
on_get_document(std::move(d), replace);
|
|
}
|
|
|
|
const DocumentsManager::GeneralDocument *DocumentsManager::get_document(FileId file_id) const {
|
|
auto document = documents_.find(file_id);
|
|
if (document == documents_.end()) {
|
|
return nullptr;
|
|
}
|
|
|
|
CHECK(document->second->file_id == file_id);
|
|
return document->second.get();
|
|
}
|
|
|
|
bool DocumentsManager::has_input_media(FileId file_id, FileId thumbnail_file_id, bool is_secret) const {
|
|
auto file_view = td_->file_manager_->get_file_view(file_id);
|
|
if (is_secret) {
|
|
if (!file_view.is_encrypted_secret() || file_view.encryption_key().empty() || !file_view.has_remote_location()) {
|
|
return false;
|
|
}
|
|
|
|
return !thumbnail_file_id.is_valid();
|
|
} else {
|
|
if (file_view.is_encrypted()) {
|
|
return false;
|
|
}
|
|
// having remote location is not enough to have InputMedia, because the file may not have valid file_reference
|
|
// also file_id needs to be duped, because upload can be called to repair the file_reference and every upload
|
|
// request must have unique file_id
|
|
return /* file_view.has_remote_location() || */ file_view.has_url();
|
|
}
|
|
}
|
|
|
|
SecretInputMedia DocumentsManager::get_secret_input_media(FileId document_file_id,
|
|
tl_object_ptr<telegram_api::InputEncryptedFile> input_file,
|
|
const string &caption, BufferSlice thumbnail) const {
|
|
const GeneralDocument *document = get_document(document_file_id);
|
|
CHECK(document != nullptr);
|
|
auto file_view = td_->file_manager_->get_file_view(document_file_id);
|
|
auto &encryption_key = file_view.encryption_key();
|
|
if (!file_view.is_encrypted_secret() || encryption_key.empty()) {
|
|
return SecretInputMedia{};
|
|
}
|
|
if (file_view.has_remote_location()) {
|
|
input_file = file_view.remote_location().as_input_encrypted_file();
|
|
}
|
|
if (!input_file) {
|
|
return SecretInputMedia{};
|
|
}
|
|
if (document->thumbnail.file_id.is_valid() && thumbnail.empty()) {
|
|
return SecretInputMedia{};
|
|
}
|
|
vector<tl_object_ptr<secret_api::DocumentAttribute>> attributes;
|
|
if (document->file_name.size()) {
|
|
attributes.push_back(make_tl_object<secret_api::documentAttributeFilename>(document->file_name));
|
|
}
|
|
return SecretInputMedia{
|
|
std::move(input_file),
|
|
make_tl_object<secret_api::decryptedMessageMediaDocument>(
|
|
std::move(thumbnail), document->thumbnail.dimensions.width, document->thumbnail.dimensions.height,
|
|
document->mime_type, narrow_cast<int32>(file_view.size()), BufferSlice(encryption_key.key_slice()),
|
|
BufferSlice(encryption_key.iv_slice()), std::move(attributes), caption)};
|
|
}
|
|
|
|
tl_object_ptr<telegram_api::InputMedia> DocumentsManager::get_input_media(
|
|
FileId file_id, tl_object_ptr<telegram_api::InputFile> input_file,
|
|
tl_object_ptr<telegram_api::InputFile> input_thumbnail) const {
|
|
auto file_view = td_->file_manager_->get_file_view(file_id);
|
|
if (file_view.is_encrypted()) {
|
|
return nullptr;
|
|
}
|
|
if (file_view.has_remote_location() && !file_view.remote_location().is_web() && input_file == nullptr) {
|
|
return make_tl_object<telegram_api::inputMediaDocument>(0, file_view.remote_location().as_input_document(), 0);
|
|
}
|
|
if (file_view.has_url()) {
|
|
return make_tl_object<telegram_api::inputMediaDocumentExternal>(0, file_view.url(), 0);
|
|
}
|
|
|
|
if (input_file != nullptr) {
|
|
const GeneralDocument *document = get_document(file_id);
|
|
CHECK(document != nullptr);
|
|
|
|
vector<tl_object_ptr<telegram_api::DocumentAttribute>> attributes;
|
|
if (document->file_name.size()) {
|
|
attributes.push_back(make_tl_object<telegram_api::documentAttributeFilename>(document->file_name));
|
|
}
|
|
int32 flags = 0;
|
|
if (input_thumbnail != nullptr) {
|
|
flags |= telegram_api::inputMediaUploadedDocument::THUMB_MASK;
|
|
}
|
|
return make_tl_object<telegram_api::inputMediaUploadedDocument>(
|
|
flags, false /*ignored*/, std::move(input_file), std::move(input_thumbnail), document->mime_type,
|
|
std::move(attributes), vector<tl_object_ptr<telegram_api::InputDocument>>(), 0);
|
|
} else {
|
|
CHECK(!file_view.has_remote_location());
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
FileId DocumentsManager::get_document_thumbnail_file_id(FileId file_id) const {
|
|
auto document = get_document(file_id);
|
|
CHECK(document != nullptr);
|
|
return document->thumbnail.file_id;
|
|
}
|
|
|
|
void DocumentsManager::delete_document_thumbnail(FileId file_id) {
|
|
auto &document = documents_[file_id];
|
|
CHECK(document != nullptr);
|
|
document->thumbnail = PhotoSize();
|
|
}
|
|
|
|
FileId DocumentsManager::dup_document(FileId new_id, FileId old_id) {
|
|
const GeneralDocument *old_document = get_document(old_id);
|
|
CHECK(old_document != nullptr);
|
|
auto &new_document = documents_[new_id];
|
|
CHECK(!new_document);
|
|
new_document = make_unique<GeneralDocument>(*old_document);
|
|
new_document->file_id = new_id;
|
|
new_document->thumbnail.file_id = td_->file_manager_->dup_file_id(new_document->thumbnail.file_id);
|
|
return new_id;
|
|
}
|
|
|
|
bool DocumentsManager::merge_documents(FileId new_id, FileId old_id, bool can_delete_old) {
|
|
if (!old_id.is_valid()) {
|
|
LOG(ERROR) << "Old file id is invalid";
|
|
return true;
|
|
}
|
|
|
|
LOG(INFO) << "Merge documents " << new_id << " and " << old_id;
|
|
const GeneralDocument *old_ = get_document(old_id);
|
|
CHECK(old_ != nullptr);
|
|
if (old_id == new_id) {
|
|
return old_->is_changed;
|
|
}
|
|
|
|
auto new_it = documents_.find(new_id);
|
|
if (new_it == documents_.end()) {
|
|
auto &old = documents_[old_id];
|
|
old->is_changed = true;
|
|
if (!can_delete_old) {
|
|
dup_document(new_id, old_id);
|
|
} else {
|
|
old->file_id = new_id;
|
|
documents_.emplace(new_id, std::move(old));
|
|
}
|
|
} else {
|
|
GeneralDocument *new_ = new_it->second.get();
|
|
CHECK(new_ != nullptr);
|
|
|
|
if (old_->thumbnail != new_->thumbnail) {
|
|
// LOG_STATUS(td_->file_manager_->merge(new_->thumbnail.file_id, old_->thumbnail.file_id));
|
|
}
|
|
|
|
new_->is_changed = true;
|
|
}
|
|
LOG_STATUS(td_->file_manager_->merge(new_id, old_id));
|
|
if (can_delete_old) {
|
|
documents_.erase(old_id);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
string DocumentsManager::get_document_search_text(FileId file_id) const {
|
|
auto document = get_document(file_id);
|
|
CHECK(document);
|
|
if (document->file_name.size() > 32) {
|
|
return document->file_name;
|
|
}
|
|
auto buf = StackAllocator::alloc(256);
|
|
StringBuilder sb(buf.as_slice());
|
|
auto stem = PathView(document->file_name).file_stem();
|
|
sb << document->file_name;
|
|
for (size_t i = 1; i + 1 < stem.size(); i++) {
|
|
if (is_utf8_character_first_code_unit(stem[i])) {
|
|
sb << " " << stem.substr(0, i);
|
|
}
|
|
}
|
|
if (sb.is_error()) {
|
|
return document->file_name;
|
|
}
|
|
return sb.as_cslice().str();
|
|
}
|
|
|
|
} // namespace td
|