75 lines
2.1 KiB
Java
75 lines
2.1 KiB
Java
/**
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*
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* Copyright 2017 Paul Schaub
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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.omemo.trust;
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public class OmemoFingerprint implements CharSequence {
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private final String fingerprintString;
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public OmemoFingerprint(String fingerprintString) {
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this.fingerprintString = fingerprintString;
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}
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@Override
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public int length() {
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return fingerprintString.length();
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}
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@Override
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public char charAt(int index) {
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return fingerprintString.charAt(index);
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}
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@Override
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public CharSequence subSequence(int start, int end) {
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return fingerprintString.subSequence(start, end);
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}
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@Override
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public String toString() {
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return fingerprintString;
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}
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@Override
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public boolean equals(Object other) {
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if (!(other instanceof OmemoFingerprint)) {
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return false;
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}
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OmemoFingerprint otherFingerprint = (OmemoFingerprint) other;
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return this.toString().trim().equals(otherFingerprint.toString().trim());
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}
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/**
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* Split the fingerprint in blocks of 8 characters with spaces between.
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*
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* @return Block representation of the fingerprint.
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*/
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public String blocksOf8Chars() {
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StringBuilder pretty = new StringBuilder();
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for (int i = 0; i < 8; i++) {
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if (i != 0) pretty.append(' ');
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pretty.append(this.fingerprintString.substring(8 * i, 8 * (i + 1)));
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}
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return pretty.toString();
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}
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@Override
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public int hashCode() {
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return toString().hashCode();
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}
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}
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