97 lines
3.2 KiB
C++
97 lines
3.2 KiB
C++
//
|
|
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
#pragma once
|
|
|
|
#include "td/telegram/telegram_api.h"
|
|
|
|
#include "td/actor/actor.h"
|
|
#include "td/actor/PromiseFuture.h"
|
|
|
|
#include "td/telegram/files/FileLoader.h"
|
|
#include "td/telegram/files/FileLocation.h"
|
|
#include "td/telegram/net/NetQuery.h"
|
|
|
|
#include "td/utils/common.h"
|
|
#include "td/utils/port/FileFd.h"
|
|
#include "td/utils/Status.h"
|
|
|
|
#include <map>
|
|
#include <set>
|
|
#include <utility>
|
|
|
|
namespace td {
|
|
class FileDownloader : public FileLoader {
|
|
public:
|
|
class Callback : public FileLoader::Callback {
|
|
public:
|
|
virtual void on_partial_download(const PartialLocalFileLocation &partial_local, int64 ready_size) = 0;
|
|
virtual void on_ok(const FullLocalFileLocation &full_local, int64 size) = 0;
|
|
virtual void on_error(Status status) = 0;
|
|
};
|
|
|
|
FileDownloader(const FullRemoteFileLocation &remote, const LocalFileLocation &local, int64 size, string name,
|
|
const FileEncryptionKey &encryption_key, bool is_small, std::unique_ptr<Callback> callback);
|
|
|
|
// Should just implement all parent pure virtual methods.
|
|
// Must not call any of them...
|
|
private:
|
|
enum class QueryType : uint8 { Default = 1, CDN, ReuploadCDN };
|
|
ResourceState resource_state_;
|
|
FullRemoteFileLocation remote_;
|
|
LocalFileLocation local_;
|
|
int64 size_;
|
|
string name_;
|
|
FileEncryptionKey encryption_key_;
|
|
std::unique_ptr<Callback> callback_;
|
|
|
|
string path_;
|
|
FileFd fd_;
|
|
|
|
int32 next_part_ = 0;
|
|
bool next_part_stop_ = false;
|
|
bool is_small_;
|
|
|
|
bool use_cdn_ = false;
|
|
DcId cdn_dc_id_;
|
|
string cdn_encryption_key_;
|
|
string cdn_encryption_iv_;
|
|
string cdn_file_token_;
|
|
int32 cdn_file_token_generation_{0};
|
|
std::map<int32, string> cdn_part_reupload_token_;
|
|
std::map<int32, int32> cdn_part_file_token_generation_;
|
|
|
|
bool need_check_{false};
|
|
struct HashInfo {
|
|
int64 offset;
|
|
size_t size;
|
|
string hash;
|
|
bool operator<(const HashInfo &other) const {
|
|
return offset < other.offset;
|
|
}
|
|
};
|
|
std::set<HashInfo> hash_info_;
|
|
bool has_hash_query_ = false;
|
|
|
|
Result<FileInfo> init() override TD_WARN_UNUSED_RESULT;
|
|
Status on_ok(int64 size) override TD_WARN_UNUSED_RESULT;
|
|
void on_error(Status status) override;
|
|
Result<bool> should_restart_part(Part part, NetQueryPtr &net_query) override TD_WARN_UNUSED_RESULT;
|
|
Result<std::pair<NetQueryPtr, bool>> start_part(Part part, int32 part_count) override TD_WARN_UNUSED_RESULT;
|
|
Result<size_t> process_part(Part part, NetQueryPtr net_query) override TD_WARN_UNUSED_RESULT;
|
|
void on_progress(int32 part_count, int32 part_size, int32 ready_part_count, bool is_ready, int64 ready_size) override;
|
|
FileLoader::Callback *get_callback() override;
|
|
Status process_check_query(NetQueryPtr net_query) override;
|
|
Result<CheckInfo> check_loop(int64 checked_prefix_size, int64 ready_prefix_size, bool is_ready) override;
|
|
void add_hash_info(const std::vector<telegram_api::object_ptr<telegram_api::cdnFileHash>> &hashes);
|
|
|
|
bool keep_fd_ = false;
|
|
void keep_fd_flag(bool keep_fd) override;
|
|
void try_release_fd();
|
|
Status acquire_fd() TD_WARN_UNUSED_RESULT;
|
|
};
|
|
} // namespace td
|