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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_UPLOAD_LIST_TEXT_LOG_UPLOAD_LIST_H_
#define COMPONENTS_UPLOAD_LIST_TEXT_LOG_UPLOAD_LIST_H_
#include <string>
#include <vector>
#include "base/files/file_path.h"
#include "base/values.h"
#include "components/upload_list/upload_list.h"
// Loads and parses an upload list text file of the line-based JSON format:
// {"upload_time":<value>[,"upload_id":<value>[,"local_id":<value>
// [,"capture_time":<value>[,"state":<value>[,"source":<value>
// [,"path_hash":<value>]]]]]]}
// {"upload_time":<value>[,"upload_id":<value>[,"local_id":<value>
// [,"capture_time":<value>[,"state":<value>[,"source":<value>
// [,"path_hash":<value>]]]]]]}
// ...
// or the CSV format:
// upload_time,upload_id[,local_id[,capture_time[,state]]]
// upload_time,upload_id[,local_id[,capture_time[,state]]]
// ...
// where each line represents an upload. |upload_time| and |capture_time| are in
// Unix time. |state| is an int in the range of UploadInfo::State. A line may
// or may not contain |local_id|, |capture_time|, |state| and |source|.
class TextLogUploadList : public UploadList {
public:
// Creates a new upload list that parses the log at |upload_log_path|.
explicit TextLogUploadList(const base::FilePath& upload_log_path);
TextLogUploadList(const TextLogUploadList&) = delete;
TextLogUploadList& operator=(const TextLogUploadList&) = delete;
const base::FilePath& upload_log_path() const { return upload_log_path_; }
protected:
~TextLogUploadList() override;
// Splits a string into a vector of lines based on EOLs.
static std::vector<std::string> SplitIntoLines(
const std::string& file_contents);
// UploadList:
std::vector<std::unique_ptr<UploadList::UploadInfo>> LoadUploadList()
override;
void ClearUploadList(const base::Time& begin, const base::Time& end) override;
void RequestSingleUpload(const std::string& local_id) override;
// Tries to parse one upload log line based on CSV format, then converts it
// to a UploadInfo entry. If the conversion succeeds, it returns a valid
// UploadInfo instance. Otherwise, it returns nullptr.
virtual std::unique_ptr<UploadList::UploadInfo> TryParseCsvLogEntry(
const std::string& log_line);
// Tries to parse one upload log dictionary based on line-based JSON format
// (no internal additional newline is permitted), then converts it to a
// UploadInfo entry. If the conversion succeeds, it returns a valid
// UploadInfo instance. Otherwise, it returns nullptr.
virtual std::unique_ptr<UploadList::UploadInfo> TryParseJsonLogEntry(
const base::Value::Dict& dict);
// Parses upload log lines, converting them to UploadInfo entries.
// The method also reverse the order of the entries (the first entry in
// |uploads| is the last in |log_entries|).
void ParseLogEntries(const std::vector<std::string>& log_entries,
std::vector<std::unique_ptr<UploadInfo>>* uploads);
const base::FilePath upload_log_path_;
};
#endif // COMPONENTS_UPLOAD_LIST_TEXT_LOG_UPLOAD_LIST_H_
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