chromium/content/browser/interest_group/trusted_signals_fetcher.h

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_BROWSER_INTEREST_GROUP_TRUSTED_SIGNALS_FETCHER_H_
#define CONTENT_BROWSER_INTEREST_GROUP_TRUSTED_SIGNALS_FETCHER_H_

#include <stdint.h>

#include <map>
#include <memory>
#include <set>
#include <string>
#include <vector>

#include "base/functional/callback.h"
#include "base/memory/weak_ptr.h"
#include "base/types/expected.h"
#include "base/values.h"
#include "content/common/content_export.h"
#include "content/services/auction_worklet/public/mojom/trusted_signals_cache.mojom.h"
#include "net/third_party/quiche/src/quiche/oblivious_http/buffers/oblivious_http_request.h"
#include "services/data_decoder/public/cpp/data_decoder.h"
#include "services/network/public/cpp/simple_url_loader.h"
#include "services/network/public/mojom/url_loader_factory.mojom-forward.h"
#include "url/gurl.h"
#include "url/origin.h"

namespace content {

struct BiddingAndAuctionServerKey;

// Single-use network fetcher for versions 2+ of the key-value server API.
// It takes a list compression groups and partitions, and asynchronously returns
// a set of responses, one per compression group. The responses are provided as
// still compressed compression group bodies, so the cache layer can store
// compressed responses and to minimize IPC size. The responses will be
// decompressed before use in the appropriate Javascript process.
//
// Bidding and scoring signals need different structs when sending requests, but
// they use the same response format, since it's only the compressed data itself
// that varies based on signals type.
//
// TODO(https://crbug.com/333445540): This is currently only an API, with no
// implementation. Need to actually implement the API.
class CONTENT_EXPORT TrustedSignalsFetcher { … };

}  // namespace content

#endif  // CONTENT_BROWSER_INTEREST_GROUP_TRUSTED_SIGNALS_FETCHER_H_