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  /*
   * Copyright (C) 2011 The Guava 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.
  */
 
 package com.google.common.net;
 
Contains constant definitions for the HTTP header field names. See:
  • RFC 2109
  • RFC 2183
  • RFC 2616
  • RFC 2965
  • RFC 5988

Author(s):
Kurt Alfred Kluever
Since:
11.0
 
 public final class HttpHeaders {
   private HttpHeaders() {}
 
   // HTTP Request and Response header fields
 
  
The HTTP Cache-Control header field name.
 
   public static final String CACHE_CONTROL = "Cache-Control";
  
The HTTP Content-Length header field name.
 
   public static final String CONTENT_LENGTH = "Content-Length";
  
The HTTP Content-Type header field name.
 
   public static final String CONTENT_TYPE = "Content-Type";
  
The HTTP Date header field name.
 
   public static final String DATE = "Date";
  
The HTTP Pragma header field name.
 
   public static final String PRAGMA = "Pragma";
  
The HTTP Via header field name.
 
   public static final String VIA = "Via";
  
The HTTP Warning header field name.
 
   public static final String WARNING = "Warning";
 
   // HTTP Request header fields
 
  
The HTTP Accept header field name.
 
   public static final String ACCEPT = "Accept";
  
The HTTP Accept-Charset header field name.
 
   public static final String ACCEPT_CHARSET = "Accept-Charset";
  
The HTTP Accept-Encoding header field name.
 
   public static final String ACCEPT_ENCODING = "Accept-Encoding";
  
The HTTP Accept-Language header field name.
 
   public static final String ACCEPT_LANGUAGE = "Accept-Language";
  
The HTTP Access-Control-Request-Headers header field name.
 
   public static final String ACCESS_CONTROL_REQUEST_HEADERS = "Access-Control-Request-Headers";
  
The HTTP Access-Control-Request-Method header field name.
 
   public static final String ACCESS_CONTROL_REQUEST_METHOD = "Access-Control-Request-Method";
  
The HTTP Authorization header field name.
 
   public static final String AUTHORIZATION = "Authorization";
  
The HTTP Connection header field name.
 
   public static final String CONNECTION = "Connection";
  
The HTTP Cookie header field name.
 
   public static final String COOKIE = "Cookie";
  
The HTTP Expect header field name.
 
   public static final String EXPECT = "Expect";
  
The HTTP From header field name.
 
   public static final String FROM = "From";
  
The HTTP Follow-Only-When-Prerender-Shown header field name.

Since:
17.0
 
   @Beta
   public static final String FOLLOW_ONLY_WHEN_PRERENDER_SHOWN = "Follow-Only-When-Prerender-Shown";
  
The HTTP Host header field name.
 
   public static final String HOST = "Host";
  
The HTTP If-Match header field name.
 
   public static final String IF_MATCH = "If-Match";
  
The HTTP If-Modified-Since header field name.
 
   public static final String IF_MODIFIED_SINCE = "If-Modified-Since";
  
The HTTP If-None-Match header field name.
 
   public static final String IF_NONE_MATCH = "If-None-Match";
  
The HTTP If-Range header field name.
 
   public static final String IF_RANGE = "If-Range";
  
The HTTP If-Unmodified-Since header field name.
 
   public static final String IF_UNMODIFIED_SINCE = "If-Unmodified-Since";
  
The HTTP Last-Event-ID header field name.
  public static final String LAST_EVENT_ID = "Last-Event-ID";
  
The HTTP Max-Forwards header field name.
  public static final String MAX_FORWARDS = "Max-Forwards";
  
The HTTP Origin header field name.
  public static final String ORIGIN = "Origin";
  
The HTTP Proxy-Authorization header field name.
  public static final String PROXY_AUTHORIZATION = "Proxy-Authorization";
  
The HTTP Range header field name.
  public static final String RANGE = "Range";
  
The HTTP Referer header field name.
  public static final String REFERER = "Referer";
  
The HTTP TE header field name.
  public static final String TE = "TE";
  
The HTTP Upgrade header field name.
  public static final String UPGRADE = "Upgrade";
  
The HTTP User-Agent header field name.
  public static final String USER_AGENT = "User-Agent";
  // HTTP Response header fields

  
The HTTP Accept-Ranges header field name.
  public static final String ACCEPT_RANGES = "Accept-Ranges";
  
The HTTP Access-Control-Allow-Headers header field name.
  public static final String ACCESS_CONTROL_ALLOW_HEADERS = "Access-Control-Allow-Headers";
  
The HTTP Access-Control-Allow-Methods header field name.
  public static final String ACCESS_CONTROL_ALLOW_METHODS = "Access-Control-Allow-Methods";
  
The HTTP Access-Control-Allow-Origin header field name.
  public static final String ACCESS_CONTROL_ALLOW_ORIGIN = "Access-Control-Allow-Origin";
  
The HTTP Access-Control-Allow-Credentials header field name.
  public static final String ACCESS_CONTROL_ALLOW_CREDENTIALS = "Access-Control-Allow-Credentials";
  
The HTTP Access-Control-Expose-Headers header field name.
  public static final String ACCESS_CONTROL_EXPOSE_HEADERS = "Access-Control-Expose-Headers";
  
The HTTP Access-Control-Max-Age header field name.
  public static final String ACCESS_CONTROL_MAX_AGE = "Access-Control-Max-Age";
  
The HTTP Age header field name.
  public static final String AGE = "Age";
  
The HTTP Allow header field name.
  public static final String ALLOW = "Allow";
  
The HTTP Content-Disposition header field name.
  public static final String CONTENT_DISPOSITION = "Content-Disposition";
  
The HTTP Content-Encoding header field name.
  public static final String CONTENT_ENCODING = "Content-Encoding";
  
The HTTP Content-Language header field name.
  public static final String CONTENT_LANGUAGE = "Content-Language";
  
The HTTP Content-Location header field name.
  public static final String CONTENT_LOCATION = "Content-Location";
  
The HTTP Content-MD5 header field name.
  public static final String CONTENT_MD5 = "Content-MD5";
  
The HTTP Content-Range header field name.
  public static final String CONTENT_RANGE = "Content-Range";
  
The HTTP Content-Security-Policy header field name.

Since:
15.0
  public static final String CONTENT_SECURITY_POLICY = "Content-Security-Policy";
  
The HTTP Content-Security-Policy-Report-Only header field name.

Since:
15.0
  public static final String CONTENT_SECURITY_POLICY_REPORT_ONLY =
      "Content-Security-Policy-Report-Only";
  
The HTTP ETag header field name.
  public static final String ETAG = "ETag";
  
The HTTP Expires header field name.
  public static final String EXPIRES = "Expires";
  
The HTTP Last-Modified header field name.
  public static final String LAST_MODIFIED = "Last-Modified";
  
The HTTP Link header field name.
  public static final String LINK = "Link";
  
The HTTP Location header field name.
  public static final String LOCATION = "Location";
  
The HTTP P3P header field name. Limited browser support.
  public static final String P3P = "P3P";
  
The HTTP Proxy-Authenticate header field name.
  public static final String PROXY_AUTHENTICATE = "Proxy-Authenticate";
  
The HTTP Refresh header field name. Non-standard header supported by most browsers.
  public static final String REFRESH = "Refresh";
  
The HTTP Retry-After header field name.
  public static final String RETRY_AFTER = "Retry-After";
  
The HTTP Server header field name.
  public static final String SERVER = "Server";
  
The HTTP Set-Cookie header field name.
  public static final String SET_COOKIE = "Set-Cookie";
  
The HTTP Set-Cookie2 header field name.
  public static final String SET_COOKIE2 = "Set-Cookie2";
  
The HTTP Strict-Transport-Security header field name.

Since:
15.0
  public static final String STRICT_TRANSPORT_SECURITY = "Strict-Transport-Security";
  
The HTTP Timing-Allow-Origin header field name.

Since:
15.0
  public static final String TIMING_ALLOW_ORIGIN = "Timing-Allow-Origin";
  
The HTTP Trailer header field name.
  public static final String TRAILER = "Trailer";
  
The HTTP Transfer-Encoding header field name.
  public static final String TRANSFER_ENCODING = "Transfer-Encoding";
  
The HTTP Vary header field name.
  public static final String VARY = "Vary";
  
The HTTP WWW-Authenticate header field name.
  public static final String WWW_AUTHENTICATE = "WWW-Authenticate";
  // Common, non-standard HTTP header fields

  
The HTTP DNT header field name.
  public static final String DNT = "DNT";
  
The HTTP X-Content-Type-Options header field name.
  public static final String X_CONTENT_TYPE_OPTIONS = "X-Content-Type-Options";
  
The HTTP X-Do-Not-Track header field name.
  public static final String X_DO_NOT_TRACK = "X-Do-Not-Track";
  
The HTTP X-Forwarded-For header field name.
  public static final String X_FORWARDED_FOR = "X-Forwarded-For";
  
The HTTP X-Forwarded-Proto header field name.
  public static final String X_FORWARDED_PROTO = "X-Forwarded-Proto";
  
The HTTP X-Frame-Options header field name.
  public static final String X_FRAME_OPTIONS = "X-Frame-Options";
  
The HTTP X-Powered-By header field name.
  public static final String X_POWERED_BY = "X-Powered-By";
  
The HTTP Public-Key-Pins header field name.

Since:
15.0
  @Beta
  public static final String PUBLIC_KEY_PINS = "Public-Key-Pins";
  
The HTTP Public-Key-Pins-Report-Only header field name.

Since:
15.0
  @Beta
  public static final String PUBLIC_KEY_PINS_REPORT_ONLY = "Public-Key-Pins-Report-Only";
  
The HTTP X-Requested-With header field name.
  public static final String X_REQUESTED_WITH = "X-Requested-With";
  
The HTTP X-User-IP header field name.
  public static final String X_USER_IP = "X-User-IP";
  
The HTTP X-XSS-Protection header field name.
  public static final String X_XSS_PROTECTION = "X-XSS-Protection";
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