103 lines
2.5 KiB
Java
103 lines
2.5 KiB
Java
/**
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*
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* Copyright 2016 Fernando Ramirez
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.bob;
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/**
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* Bits of Binary hash class.
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*
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* @author Fernando Ramirez
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* @see <a href="http://xmpp.org/extensions/xep-0231.html">XEP-0231: Bits of
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* Binary</a>
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*/
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public class BoBHash {
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private final String hash;
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private final String hashType;
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/**
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* BoB hash constructor.
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*
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* @param hash
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* @param hashType
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*/
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public BoBHash(String hash, String hashType) {
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this.hash = hash;
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this.hashType = hashType;
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}
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/**
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* Get the hash.
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*
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* @return the hash
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*/
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public String getHash() {
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return hash;
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}
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/**
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* Get the hash type.
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*
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* @return the hash type
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*/
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public String getHashType() {
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return hashType;
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}
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/**
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* BoB hash to src attribute string.
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*
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* @return src attribute string
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*/
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public String toSrc() {
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return "cid:" + toCid();
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}
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/**
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* BoB hash to cid attribute string.
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*
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* @return cid attribute string
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*/
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public String toCid() {
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return this.hashType + "+" + this.hash + "@bob.xmpp.org";
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}
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/**
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* Get BoB hash from src attribute string.
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*
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* @param src
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* @return the BoB hash
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*/
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public static BoBHash fromSrc(String src) {
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String hashType = src.substring(src.lastIndexOf("cid:") + 4, src.indexOf("+"));
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String hash = src.substring(src.indexOf("+") + 1, src.indexOf("@bob.xmpp.org"));
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return new BoBHash(hash, hashType);
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}
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/**
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* Get BoB hash from cid attribute string.
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*
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* @param cid
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* @return the BoB hash
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*/
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public static BoBHash fromCid(String cid) {
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String hashType = cid.substring(0, cid.indexOf("+"));
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String hash = cid.substring(cid.indexOf("+") + 1, cid.indexOf("@bob.xmpp.org"));
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return new BoBHash(hash, hashType);
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}
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}
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