456 lines
16 KiB
C++
456 lines
16 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
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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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#pragma once
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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/telegram/DialogId.h"
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#include "td/telegram/files/FileDb.h"
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#include "td/telegram/files/FileGenerateManager.h"
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#include "td/telegram/files/FileId.h"
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#include "td/telegram/files/FileLoadManager.h"
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#include "td/telegram/files/FileLocation.h"
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#include "td/telegram/files/FileStats.h"
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#include "td/utils/buffer.h"
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#include "td/utils/common.h"
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#include "td/utils/Container.h"
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#include "td/utils/Slice.h"
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#include "td/utils/Status.h"
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#include <map>
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#include <memory>
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#include <set>
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#include <utility>
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namespace td {
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enum class FileLocationSource : int8 { None, FromUser, FromDb, FromServer };
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class FileNode {
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public:
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FileNode(LocalFileLocation local, RemoteFileLocation remote, unique_ptr<FullGenerateFileLocation> generate,
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int64 size, int64 expected_size, string remote_name, string url, DialogId owner_dialog_id,
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FileEncryptionKey key, FileId main_file_id, int8 main_file_id_priority)
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: local_(std::move(local))
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, remote_(std::move(remote))
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, generate_(std::move(generate))
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, size_(size)
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, expected_size_(expected_size)
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, remote_name_(std::move(remote_name))
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, url_(std::move(url))
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, owner_dialog_id_(owner_dialog_id)
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, encryption_key_(std::move(key))
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, main_file_id_(main_file_id)
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, main_file_id_priority_(main_file_id_priority) {
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}
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void set_local_location(const LocalFileLocation &local, int64 ready_size);
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void set_remote_location(const RemoteFileLocation &remote, FileLocationSource source, int64 ready_size);
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void set_generate_location(unique_ptr<FullGenerateFileLocation> &&generate);
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void set_size(int64 size);
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void set_expected_size(int64 expected_size);
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void set_remote_name(string remote_name);
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void set_url(string url);
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void set_owner_dialog_id(DialogId owner_id);
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void set_encryption_key(FileEncryptionKey key);
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void set_download_priority(int8 priority);
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void set_upload_priority(int8 priority);
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void set_generate_priority(int8 download_priority, int8 upload_priority);
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void on_changed();
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void on_info_changed();
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void on_pmc_changed();
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bool need_info_flush() const;
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bool need_pmc_flush() const;
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void on_pmc_flushed();
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void on_info_flushed();
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string suggested_name() const;
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private:
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friend class FileView;
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friend class FileManager;
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LocalFileLocation local_;
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FileLoadManager::QueryId upload_id_ = 0;
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int64 local_ready_size_ = 0;
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RemoteFileLocation remote_;
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FileLoadManager::QueryId download_id_ = 0;
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int64 remote_ready_size_ = 0;
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unique_ptr<FullGenerateFileLocation> generate_;
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FileLoadManager::QueryId generate_id_ = 0;
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int64 size_ = 0;
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int64 expected_size_ = 0;
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string remote_name_;
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string url_;
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DialogId owner_dialog_id_;
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FileEncryptionKey encryption_key_;
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FileDbId pmc_id_ = 0;
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std::vector<FileId> file_ids_;
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FileId main_file_id_;
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FileId upload_pause_;
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int8 upload_priority_ = 0;
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int8 download_priority_ = 0;
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int8 generate_priority_ = 0;
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int8 generate_download_priority_ = 0;
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int8 generate_upload_priority_ = 0;
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int8 main_file_id_priority_ = 0;
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FileLocationSource remote_source_ = FileLocationSource::FromUser;
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bool get_by_hash_ = false;
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bool can_search_locally_{true};
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bool is_download_started_ = false;
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bool generate_was_update_ = false;
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bool need_load_from_pmc_ = false;
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bool pmc_changed_flag_{false};
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bool info_changed_flag_{false};
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};
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class FileManager;
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class FileNodePtr {
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public:
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FileNodePtr() = default;
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FileNodePtr(FileId file_id, FileManager *file_manager) : file_id_(file_id), file_manager_(file_manager) {
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}
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FileNode *operator->() const;
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FileNode &operator*() const;
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FileNode *get() const;
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explicit operator bool() const;
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private:
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FileId file_id_;
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FileManager *file_manager_ = nullptr;
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FileNode *get_unsafe() const;
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};
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class ConstFileNodePtr {
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public:
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ConstFileNodePtr() = default;
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ConstFileNodePtr(FileNodePtr file_node_ptr) : file_node_ptr_(file_node_ptr) {
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}
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const FileNode *operator->() const {
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return file_node_ptr_.operator->();
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}
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const FileNode &operator*() const {
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return file_node_ptr_.operator*();
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}
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explicit operator bool() const {
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return bool(file_node_ptr_);
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}
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private:
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FileNodePtr file_node_ptr_;
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};
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class FileView {
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public:
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FileView() = default;
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explicit FileView(ConstFileNodePtr node);
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bool empty() const;
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bool has_local_location() const;
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const FullLocalFileLocation &local_location() const;
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bool has_remote_location() const;
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const FullRemoteFileLocation &remote_location() const;
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bool has_generate_location() const;
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const FullGenerateFileLocation &generate_location() const;
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bool has_url() const;
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const string &url() const;
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const string &remote_name() const;
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string suggested_name() const;
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DialogId owner_dialog_id() const;
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bool get_by_hash() const;
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FileId file_id() const {
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return node_->main_file_id_;
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}
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int64 size() const;
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int64 expected_size() const;
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bool is_downloading() const;
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int64 local_size() const;
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int64 local_total_size() const;
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bool is_uploading() const;
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int64 remote_size() const;
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string path() const;
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bool can_download_from_server() const;
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bool can_generate() const;
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bool can_delete() const;
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FileType get_type() const {
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if (has_local_location()) {
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return local_location().file_type_;
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}
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if (has_remote_location()) {
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return remote_location().file_type_;
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}
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if (has_generate_location()) {
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return generate_location().file_type_;
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}
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return FileType::Temp;
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}
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bool is_encrypted() const {
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return get_type() == FileType::Encrypted;
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}
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const FileEncryptionKey &encryption_key() const {
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return node_->encryption_key_;
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}
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private:
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ConstFileNodePtr node_{};
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};
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class Td;
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class FileManager : public FileLoadManager::Callback {
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public:
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class DownloadCallback {
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public:
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DownloadCallback() = default;
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DownloadCallback(const DownloadCallback &) = delete;
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DownloadCallback &operator=(const DownloadCallback &) = delete;
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virtual ~DownloadCallback() = default;
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virtual void on_progress(FileId file_id) {
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}
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virtual void on_download_ok(FileId file_id) = 0;
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virtual void on_download_error(FileId file_id, Status error) = 0;
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};
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class UploadCallback {
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public:
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UploadCallback() = default;
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UploadCallback(const UploadCallback &) = delete;
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UploadCallback &operator=(const UploadCallback &) = delete;
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virtual ~UploadCallback() = default;
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virtual void on_progress(FileId file_id) {
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}
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// After on_upload_ok all uploads of this file will be paused till merge, delete_partial_remote_location or
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// explicit upload request with the same file_id.
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// Also upload may be resumed after some other merges.
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virtual void on_upload_ok(FileId file_id, tl_object_ptr<telegram_api::InputFile> input_file) = 0;
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virtual void on_upload_encrypted_ok(FileId file_id, tl_object_ptr<telegram_api::InputEncryptedFile> input_file) = 0;
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virtual void on_upload_error(FileId file_id, Status error) = 0;
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};
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class Context {
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public:
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virtual void on_new_file(int64 size) = 0;
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virtual void on_file_updated(FileId size) = 0;
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virtual ActorShared<> create_reference() = 0;
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Context() = default;
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Context(const Context &) = delete;
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Context &operator=(const Context &) = delete;
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virtual ~Context() = default;
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};
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explicit FileManager(std::unique_ptr<Context> context);
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FileManager(const FileManager &other) = delete;
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FileManager &operator=(const FileManager &other) = delete;
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FileManager(FileManager &&other) = delete;
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FileManager &operator=(FileManager &&other) = delete;
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~FileManager() override;
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void init_actor();
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FileId dup_file_id(FileId file_id);
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void on_file_unlink(const FullLocalFileLocation &location);
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FileId register_empty(FileType type);
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Result<FileId> register_local(FullLocalFileLocation location, DialogId owner_dialog_id, int64 size,
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bool get_by_hash = false, bool force = false) TD_WARN_UNUSED_RESULT;
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FileId register_remote(const FullRemoteFileLocation &location, FileLocationSource file_location_source,
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DialogId owner_dialog_id, int64 size, int64 expected_size, string name) TD_WARN_UNUSED_RESULT;
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Result<FileId> register_generate(FileType file_type, FileLocationSource file_location_source, string original_path,
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string conversion, DialogId owner_dialog_id,
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int64 expected_size) TD_WARN_UNUSED_RESULT;
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Result<FileId> register_file(FileData data, FileLocationSource file_location_source, const char *source, bool force);
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Result<FileId> merge(FileId x_file_id, FileId y_file_id, bool no_sync = false) TD_WARN_UNUSED_RESULT;
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bool set_encryption_key(FileId file_id, FileEncryptionKey key);
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bool set_content(FileId file_id, BufferSlice bytes);
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void download(FileId file_id, std::shared_ptr<DownloadCallback> callback, int32 new_priority);
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void upload(FileId file_id, std::shared_ptr<UploadCallback> callback, int32 new_priority, uint64 upload_order);
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void resume_upload(FileId file_id, std::vector<int> bad_parts, std::shared_ptr<UploadCallback> callback,
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int32 new_priority, uint64 upload_order);
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bool delete_partial_remote_location(FileId file_id);
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void get_content(FileId file_id, Promise<BufferSlice> promise);
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void delete_file(FileId file_id, Promise<Unit> promise, const char *source);
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void external_file_generate_progress(int64 id, int32 expected_size, int32 local_prefix_size, Promise<> promise);
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void external_file_generate_finish(int64 id, Status status, Promise<> promise);
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static constexpr char PERSISTENT_ID_VERSION = 2;
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Result<string> to_persistent_id(FileId file_id) TD_WARN_UNUSED_RESULT;
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Result<FileId> from_persistent_id(CSlice persistent_id, FileType file_type) TD_WARN_UNUSED_RESULT;
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FileView get_file_view(FileId file_id) const;
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FileView get_sync_file_view(FileId file_id);
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tl_object_ptr<td_api::file> get_file_object(FileId file_id, bool with_main_file_id = true);
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Result<FileId> get_input_thumbnail_file_id(const tl_object_ptr<td_api::InputFile> &thumb_input_file,
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DialogId owner_dialog_id, bool is_encrypted) TD_WARN_UNUSED_RESULT;
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Result<FileId> get_input_file_id(FileType type, const tl_object_ptr<td_api::InputFile> &file,
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DialogId owner_dialog_id, bool allow_zero, bool is_encrypted,
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bool get_by_hash = false) TD_WARN_UNUSED_RESULT;
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vector<tl_object_ptr<telegram_api::InputDocument>> get_input_documents(const vector<FileId> &file_ids);
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template <class T>
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void store_file(FileId file_id, T &storer, int32 ttl = 5) const;
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template <class T>
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FileId parse_file(T &parser);
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private:
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Result<FileId> check_input_file_id(FileType type, Result<FileId> result, bool is_encrypted,
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bool allow_zero) TD_WARN_UNUSED_RESULT;
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FileId register_url(string url, FileType file_type, FileLocationSource file_location_source,
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DialogId owner_dialog_id);
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static constexpr int8 FROM_BYTES_PRIORITY = 10;
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using FileNodeId = int32;
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using QueryId = FileLoadManager::QueryId;
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class Query {
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public:
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FileId file_id_;
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enum Type { UploadByHash, Upload, Download, SetContent, Generate } type_;
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};
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struct FileIdInfo {
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FileNodeId node_id_{0};
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bool send_updates_flag_{false};
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bool pin_flag_{false};
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int8 download_priority_{0};
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int8 upload_priority_{0};
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uint64 upload_order_;
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std::shared_ptr<DownloadCallback> download_callback_;
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std::shared_ptr<UploadCallback> upload_callback_;
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};
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ActorShared<> parent_;
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std::unique_ptr<Context> context_;
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std::shared_ptr<FileDbInterface> file_db_;
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FileIdInfo *get_file_id_info(FileId file_id);
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std::map<FullRemoteFileLocation, FileId> remote_location_to_file_id_;
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std::map<FullLocalFileLocation, FileId> local_location_to_file_id_;
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std::map<FullGenerateFileLocation, FileId> generate_location_to_file_id_;
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std::map<FileDbId, int32> pmc_id_to_file_node_id_;
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vector<FileIdInfo> file_id_info_;
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vector<FileId> empty_file_ids_;
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vector<std::unique_ptr<FileNode>> file_nodes_;
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ActorOwn<FileLoadManager> file_load_manager_;
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ActorOwn<FileGenerateManager> file_generate_manager_;
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Container<Query> queries_container_;
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std::set<std::string> bad_paths_;
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FileId next_file_id();
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FileNodeId next_file_node_id();
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int32 next_pmc_file_id();
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FileId create_file_id(int32 file_node_id, FileNode *file_node);
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void try_forget_file_id(FileId file_id);
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void load_from_pmc(FileId file_id, FullLocalFileLocation full_local);
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void load_from_pmc(FileId file_id, const FullRemoteFileLocation &full_remote);
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void load_from_pmc(FileId file_id, const FullGenerateFileLocation &full_generate);
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template <class LocationT>
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void load_from_pmc_impl(FileId file_id, const LocationT &location);
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void load_from_pmc_result(FileId file_id, Result<FileData> &&result);
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FileId register_pmc_file_data(FileData &&data);
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Status check_local_location(FileNodePtr node);
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Status check_local_location(FullLocalFileLocation &location, int64 &size);
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void try_flush_node(FileNodePtr node, bool new_remote = false, bool new_local = false, bool new_generate = false,
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FileDbId other_pmc_id = Auto());
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void try_flush_node_info(FileNodePtr node);
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void clear_from_pmc(FileNodePtr node);
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void flush_to_pmc(FileNodePtr node, bool new_remote, bool new_local, bool new_generate);
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void load_from_pmc(FileNodePtr node, bool new_remote, bool new_local, bool new_generate);
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string get_persistent_id(const FullRemoteFileLocation &location);
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string fix_file_extension(Slice file_name, Slice file_type, Slice file_extension);
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string get_file_name(FileType file_type, Slice path);
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ConstFileNodePtr get_file_node(FileId file_id) const {
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return ConstFileNodePtr{FileNodePtr{file_id, const_cast<FileManager *>(this)}};
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}
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FileNodePtr get_file_node(FileId file_id) {
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return FileNodePtr{file_id, this};
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}
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FileNode *get_file_node_raw(FileId file_id, FileNodeId *file_node_id = nullptr);
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FileNodePtr get_sync_file_node(FileId file_id);
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// void release_file_node(FileNodeId id);
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void cancel_download(FileNodePtr node);
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void cancel_upload(FileNodePtr node);
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void cancel_generate(FileNodePtr node);
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void run_upload(FileNodePtr node, std::vector<int> bad_parts);
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void run_download(FileNodePtr node);
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void run_generate(FileNodePtr node);
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void on_start_download(QueryId query_id) override;
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void on_partial_download(QueryId query_id, const PartialLocalFileLocation &partial_local, int64 ready_size) override;
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void on_partial_upload(QueryId query_id, const PartialRemoteFileLocation &partial_remote, int64 ready_size) override;
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void on_download_ok(QueryId query_id, const FullLocalFileLocation &local, int64 size) override;
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void on_upload_ok(QueryId query_id, FileType file_type, const PartialRemoteFileLocation &partial_remote,
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int64 size) override;
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void on_upload_full_ok(QueryId query_id, const FullRemoteFileLocation &remote) override;
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void on_error(QueryId query_id, Status status) override;
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void on_error_impl(FileNodePtr node, Query::Type type, bool was_active, Status status);
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void on_partial_generate(QueryId, const PartialLocalFileLocation &partial_local, int32 expected_size);
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void on_generate_ok(QueryId, const FullLocalFileLocation &local);
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std::pair<Query, bool> finish_query(QueryId query_id);
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void hangup() override;
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void tear_down() override;
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friend class FileNodePtr;
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};
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} // namespace td
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