chromium/net/third_party/quiche/src/quiche/oblivious_http/oblivious_http_client.h

#ifndef QUICHE_OBLIVIOUS_HTTP_OBLIVIOUS_HTTP_CLIENT_H_
#define QUICHE_OBLIVIOUS_HTTP_OBLIVIOUS_HTTP_CLIENT_H_

#include <string>

#include "absl/status/statusor.h"
#include "absl/strings/string_view.h"
#include "openssl/base.h"
#include "openssl/hpke.h"
#include "quiche/common/platform/api/quiche_export.h"
#include "quiche/oblivious_http/buffers/oblivious_http_request.h"
#include "quiche/oblivious_http/buffers/oblivious_http_response.h"
#include "quiche/oblivious_http/common/oblivious_http_header_key_config.h"

namespace quiche {
// 1. Facilitates client side to intiate OHttp request flow by initializing the
// HPKE public key obtained from server, and subsequently uses it to encrypt the
// Binary HTTP request payload.
// 2. After initializing this class with server's HPKE public key, users can
// call `CreateObliviousHttpRequest` which constructs OHTTP request of the input
// payload(Binary HTTP request).
// 3. Handles decryption of response (that's in the form of encrypted Binary
// HTTP response) that will be sent back from Server-to-Relay and
// Relay-to-client in HTTP POST body.
// 4. Handles BoringSSL HPKE context setup and bookkeeping.

// This class is immutable (except moves) and thus trivially thread-safe.
class QUICHE_EXPORT ObliviousHttpClient { … };

}  // namespace quiche

#endif  // QUICHE_OBLIVIOUS_HTTP_OBLIVIOUS_HTTP_CLIENT_H_