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/*
 * Copyright (C) 2013 Square, Inc.
 *
 * 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.squareup.okhttp;

import com.squareup.okhttp.internal.Util;
import java.security.Principal;
import java.security.cert.Certificate;
import java.security.cert.X509Certificate;
import java.util.Collections;
import java.util.List;
import javax.net.ssl.SSLPeerUnverifiedException;
import javax.net.ssl.SSLSession;

/**
 * A record of a TLS handshake. For HTTPS clients, the client is local
 * and the remote server is its peer.
 *
 * 

This value object describes a completed handshake. Use {@link * javax.net.ssl.SSLSocketFactory} to set policy for new handshakes. */ public final class Handshake { private final String cipherSuite; private final List peerCertificates; private final List localCertificates; private Handshake( String cipherSuite, List peerCertificates, List localCertificates) { this.cipherSuite = cipherSuite; this.peerCertificates = peerCertificates; this.localCertificates = localCertificates; } public static Handshake get(SSLSession session) { String cipherSuite = session.getCipherSuite(); if (cipherSuite == null) throw new IllegalStateException("cipherSuite == null"); Certificate[] peerCertificates; try { peerCertificates = session.getPeerCertificates(); } catch (SSLPeerUnverifiedException ignored) { peerCertificates = null; } List peerCertificatesList = peerCertificates != null ? Util.immutableList(peerCertificates) : Collections.emptyList(); Certificate[] localCertificates = session.getLocalCertificates(); List localCertificatesList = localCertificates != null ? Util.immutableList(localCertificates) : Collections.emptyList(); return new Handshake(cipherSuite, peerCertificatesList, localCertificatesList); } public static Handshake get( String cipherSuite, List peerCertificates, List localCertificates) { if (cipherSuite == null) throw new IllegalArgumentException("cipherSuite == null"); return new Handshake(cipherSuite, Util.immutableList(peerCertificates), Util.immutableList(localCertificates)); } /** Returns a cipher suite name like "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA". */ public String cipherSuite() { return cipherSuite; } /** Returns a possibly-empty list of certificates that identify the remote peer. */ public List peerCertificates() { return peerCertificates; } /** Returns the remote peer's principle, or null if that peer is anonymous. */ public Principal peerPrincipal() { return !peerCertificates.isEmpty() ? ((X509Certificate) peerCertificates.get(0)).getSubjectX500Principal() : null; } /** Returns a possibly-empty list of certificates that identify this peer. */ public List localCertificates() { return localCertificates; } /** Returns the local principle, or null if this peer is anonymous. */ public Principal localPrincipal() { return !localCertificates.isEmpty() ? ((X509Certificate) localCertificates.get(0)).getSubjectX500Principal() : null; } @Override public boolean equals(Object other) { if (!(other instanceof Handshake)) return false; Handshake that = (Handshake) other; return cipherSuite.equals(that.cipherSuite) && peerCertificates.equals(that.peerCertificates) && localCertificates.equals(that.localCertificates); } @Override public int hashCode() { int result = 17; result = 31 * result + cipherSuite.hashCode(); result = 31 * result + peerCertificates.hashCode(); result = 31 * result + localCertificates.hashCode(); return result; } }





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