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80 lines
2.1 KiB
80 lines
2.1 KiB
// ReferrerPolicy.java
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// Copyright 2017 by luccioman; https://github.com/luccioman
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//
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// This is a part of YaCy, a peer-to-peer based web search engine
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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//
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// LICENSE
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package net.yacy.http;
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/**
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* Referrer policies enumeration, as decribed by the related W3C recommendation
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* (https://www.w3.org/TR/referrer-policy/#referrer-policies)
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*/
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public enum ReferrerPolicy {
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EMPTY(""),
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NO_REFERRER("no-referrer"),
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NO_REFERRER_WHEN_DOWNGRADE("no-referrer-when-downgrade"),
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SAME_ORIGIN("same-origin"),
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ORIGIN("origin"),
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STRICT_ORIGIN("strict-origin"),
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ORIGIN_WHEN_CROSS_ORIGIN("origin-when-cross-origin"),
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STRICT_ORIGIN_WHEN_CROSS_ORIGIN("strict-origin-when-cross-origin"),
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UNSAFE_URL("unsafe-url");
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/**
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* Policy string value
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*/
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private final String value;
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/**
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* Enumeration private constructor
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* @param value the policy string value
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*/
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private ReferrerPolicy(final String value) {
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this.value = value;
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}
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/**
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* @return the policy string value
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*/
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public String getValue() {
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return value;
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}
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/**
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* @param value a policy string value
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* @return true when this enumeration contains an element with the specified policy value
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*/
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public static boolean contains(final String value) {
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boolean res = false;
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for(ReferrerPolicy policy : ReferrerPolicy.values()) {
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if(policy.getValue().equals(value)) {
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res = true;
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break;
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}
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}
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return res;
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}
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}
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