// Copyright 2019 Istio Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto3";

package istio.policy.v1beta1;

option go_package="istio.io/api/policy/v1beta1";

// Direct HTTP response for a client-facing error message which can be attached
// to an RPC error.
message DirectHttpResponse {
  // HTTP status code. If not set, RPC error code is used.
  HttpStatusCode code = 1;

  // HTTP response body.
  string body = 2;

  // HTTP response headers.
  map<string, string> headers = 3;
}

// HTTP response codes.
// For more details: http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
enum HttpStatusCode {
  // Empty - This code not part of the HTTP status code specification, but it is needed for proto
  // `enum` type.
  Empty = 0;

  Continue = 100;

  OK = 200;
  Created = 201;
  Accepted = 202;
  NonAuthoritativeInformation = 203;
  NoContent = 204;
  ResetContent = 205;
  PartialContent = 206;
  MultiStatus = 207;
  AlreadyReported = 208;
  IMUsed = 226;

  MultipleChoices = 300;
  MovedPermanently = 301;
  Found = 302;
  SeeOther = 303;
  NotModified = 304;
  UseProxy = 305;
  TemporaryRedirect = 307;
  PermanentRedirect = 308;

  BadRequest = 400;
  Unauthorized = 401;
  PaymentRequired = 402;
  Forbidden = 403;
  NotFound = 404;
  MethodNotAllowed = 405;
  NotAcceptable = 406;
  ProxyAuthenticationRequired = 407;
  RequestTimeout = 408;
  Conflict = 409;
  Gone = 410;
  LengthRequired = 411;
  PreconditionFailed = 412;
  PayloadTooLarge = 413;
  URITooLong = 414;
  UnsupportedMediaType = 415;
  RangeNotSatisfiable = 416;
  ExpectationFailed = 417;
  MisdirectedRequest = 421;
  UnprocessableEntity = 422;
  Locked = 423;
  FailedDependency = 424;
  UpgradeRequired = 426;
  PreconditionRequired = 428;
  TooManyRequests = 429;
  RequestHeaderFieldsTooLarge = 431;

  InternalServerError = 500;
  NotImplemented = 501;
  BadGateway = 502;
  ServiceUnavailable = 503;
  GatewayTimeout = 504;
  HTTPVersionNotSupported = 505;
  VariantAlsoNegotiates = 506;
  InsufficientStorage = 507;
  LoopDetected = 508;
  NotExtended = 510;
  NetworkAuthenticationRequired = 511;
}