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+/**
+ * @license
+ * Copyright The Closure Library Authors.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/**
+ * @fileoverview Constants for HTTP status codes.
+ */
+
+goog.provide('goog.net.HttpStatus');
+
+
+/**
+ * HTTP Status Codes defined in RFC 2616, RFC 6585, RFC 4918 and RFC 7538.
+ * @see http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
+ * @see http://tools.ietf.org/html/rfc6585
+ * @see https://tools.ietf.org/html/rfc4918
+ * @see https://tools.ietf.org/html/rfc7538
+ * @enum {number}
+ */
+goog.net.HttpStatus = {
+  // Informational 1xx
+  CONTINUE: 100,
+  SWITCHING_PROTOCOLS: 101,
+
+  // Successful 2xx
+  OK: 200,
+  CREATED: 201,
+  ACCEPTED: 202,
+  NON_AUTHORITATIVE_INFORMATION: 203,
+  NO_CONTENT: 204,
+  RESET_CONTENT: 205,
+  PARTIAL_CONTENT: 206,
+  MULTI_STATUS: 207,
+
+  // Redirection 3xx
+  MULTIPLE_CHOICES: 300,
+  MOVED_PERMANENTLY: 301,
+  FOUND: 302,
+  SEE_OTHER: 303,
+  NOT_MODIFIED: 304,
+  USE_PROXY: 305,
+  TEMPORARY_REDIRECT: 307,
+  PERMANENT_REDIRECT: 308,
+
+  // Client Error 4xx
+  BAD_REQUEST: 400,
+  UNAUTHORIZED: 401,
+  PAYMENT_REQUIRED: 402,
+  FORBIDDEN: 403,
+  NOT_FOUND: 404,
+  METHOD_NOT_ALLOWED: 405,
+  NOT_ACCEPTABLE: 406,
+  PROXY_AUTHENTICATION_REQUIRED: 407,
+  REQUEST_TIMEOUT: 408,
+  CONFLICT: 409,
+  GONE: 410,
+  LENGTH_REQUIRED: 411,
+  PRECONDITION_FAILED: 412,
+  REQUEST_ENTITY_TOO_LARGE: 413,
+  REQUEST_URI_TOO_LONG: 414,
+  UNSUPPORTED_MEDIA_TYPE: 415,
+  REQUEST_RANGE_NOT_SATISFIABLE: 416,
+  EXPECTATION_FAILED: 417,
+  UNPROCESSABLE_ENTITY: 422,
+  LOCKED: 423,
+  FAILED_DEPENDENCY: 424,
+  PRECONDITION_REQUIRED: 428,
+  TOO_MANY_REQUESTS: 429,
+  REQUEST_HEADER_FIELDS_TOO_LARGE: 431,
+  CLIENT_CLOSED_REQUEST: 499,  // Nonstandard, used by GRPC
+
+  // Server Error 5xx
+  INTERNAL_SERVER_ERROR: 500,
+  NOT_IMPLEMENTED: 501,
+  BAD_GATEWAY: 502,
+  SERVICE_UNAVAILABLE: 503,
+  GATEWAY_TIMEOUT: 504,
+  HTTP_VERSION_NOT_SUPPORTED: 505,
+  INSUFFICIENT_STORAGE: 507,
+  NETWORK_AUTHENTICATION_REQUIRED: 511,
+
+  /*
+   * IE returns this code for 204 due to its use of URLMon, which returns this
+   * code for 'Operation Aborted'. The status text is 'Unknown', the response
+   * headers are ''. Known to occur on IE 6 on XP through IE9 on Win7.
+   */
+  QUIRK_IE_NO_CONTENT: 1223,
+};
+
+
+/**
+ * Returns whether the given status should be considered successful.
+ *
+ * Successful codes are OK (200), CREATED (201), ACCEPTED (202),
+ * NO CONTENT (204), PARTIAL CONTENT (206), NOT MODIFIED (304),
+ * and IE's no content code (1223).
+ *
+ * @param {number} status The status code to test.
+ * @return {boolean} Whether the status code should be considered successful.
+ */
+goog.net.HttpStatus.isSuccess = function(status) {
+  'use strict';
+  switch (status) {
+    case goog.net.HttpStatus.OK:
+    case goog.net.HttpStatus.CREATED:
+    case goog.net.HttpStatus.ACCEPTED:
+    case goog.net.HttpStatus.NO_CONTENT:
+    case goog.net.HttpStatus.PARTIAL_CONTENT:
+    case goog.net.HttpStatus.NOT_MODIFIED:
+    case goog.net.HttpStatus.QUIRK_IE_NO_CONTENT:
+      return true;
+
+    default:
+      return false;
+  }
+};