author | juh |
Fri, 17 Apr 2015 11:51:47 -0700 | |
changeset 29973 | 188affdeeed2 |
parent 25859 | 3317bb8137f4 |
child 39465 | 8c06651d9138 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.security.provider.certpath; |
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import java.security.InvalidAlgorithmParameterException; |
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import java.security.PublicKey; |
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import java.security.cert.*; |
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import java.security.interfaces.DSAPublicKey; |
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import java.util.*; |
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import javax.security.auth.x500.X500Principal; |
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import sun.security.util.Debug; |
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/** |
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* Common utility methods and classes used by the PKIX CertPathValidator and |
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* CertPathBuilder implementation. |
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*/ |
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class PKIX { |
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private static final Debug debug = Debug.getInstance("certpath"); |
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private PKIX() { } |
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static boolean isDSAPublicKeyWithoutParams(PublicKey publicKey) { |
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return (publicKey instanceof DSAPublicKey && |
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((DSAPublicKey)publicKey).getParams() == null); |
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} |
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static ValidatorParams checkParams(CertPath cp, CertPathParameters params) |
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throws InvalidAlgorithmParameterException |
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{ |
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if (!(params instanceof PKIXParameters)) { |
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throw new InvalidAlgorithmParameterException("inappropriate " |
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+ "params, must be an instance of PKIXParameters"); |
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} |
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return new ValidatorParams(cp, (PKIXParameters)params); |
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} |
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static BuilderParams checkBuilderParams(CertPathParameters params) |
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throws InvalidAlgorithmParameterException |
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{ |
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if (!(params instanceof PKIXBuilderParameters)) { |
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throw new InvalidAlgorithmParameterException("inappropriate " |
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+ "params, must be an instance of PKIXBuilderParameters"); |
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} |
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return new BuilderParams((PKIXBuilderParameters)params); |
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} |
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/** |
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* PKIXParameters that are shared by the PKIX CertPathValidator |
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* implementation. Provides additional functionality and avoids |
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* unnecessary cloning. |
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*/ |
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static class ValidatorParams { |
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private final PKIXParameters params; |
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private CertPath certPath; |
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private List<PKIXCertPathChecker> checkers; |
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private List<CertStore> stores; |
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private boolean gotDate; |
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private Date date; |
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private Set<String> policies; |
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private boolean gotConstraints; |
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private CertSelector constraints; |
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private Set<TrustAnchor> anchors; |
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private List<X509Certificate> certs; |
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ValidatorParams(CertPath cp, PKIXParameters params) |
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throws InvalidAlgorithmParameterException |
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{ |
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this(params); |
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if (!cp.getType().equals("X.509") && !cp.getType().equals("X509")) { |
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throw new InvalidAlgorithmParameterException("inappropriate " |
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+ "CertPath type specified, must be X.509 or X509"); |
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} |
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this.certPath = cp; |
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} |
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ValidatorParams(PKIXParameters params) |
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throws InvalidAlgorithmParameterException |
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{ |
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this.anchors = params.getTrustAnchors(); |
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// Make sure that none of the trust anchors include name constraints |
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// (not supported). |
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for (TrustAnchor anchor : this.anchors) { |
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if (anchor.getNameConstraints() != null) { |
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throw new InvalidAlgorithmParameterException |
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("name constraints in trust anchor not supported"); |
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} |
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} |
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this.params = params; |
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} |
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CertPath certPath() { |
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return certPath; |
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} |
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// called by CertPathBuilder after path has been built |
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void setCertPath(CertPath cp) { |
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this.certPath = cp; |
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} |
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List<X509Certificate> certificates() { |
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if (certs == null) { |
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if (certPath == null) { |
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certs = Collections.emptyList(); |
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} else { |
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// Reverse the ordering for validation so that the target |
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// cert is the last certificate |
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@SuppressWarnings("unchecked") |
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List<X509Certificate> xc = new ArrayList<> |
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((List<X509Certificate>)certPath.getCertificates()); |
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Collections.reverse(xc); |
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certs = xc; |
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} |
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} |
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return certs; |
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} |
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List<PKIXCertPathChecker> certPathCheckers() { |
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if (checkers == null) |
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checkers = params.getCertPathCheckers(); |
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return checkers; |
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} |
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List<CertStore> certStores() { |
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if (stores == null) |
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stores = params.getCertStores(); |
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return stores; |
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} |
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Date date() { |
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if (!gotDate) { |
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date = params.getDate(); |
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if (date == null) |
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date = new Date(); |
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gotDate = true; |
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} |
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return date; |
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} |
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Set<String> initialPolicies() { |
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if (policies == null) |
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policies = params.getInitialPolicies(); |
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return policies; |
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} |
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CertSelector targetCertConstraints() { |
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if (!gotConstraints) { |
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constraints = params.getTargetCertConstraints(); |
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gotConstraints = true; |
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} |
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return constraints; |
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} |
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Set<TrustAnchor> trustAnchors() { |
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return anchors; |
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} |
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boolean revocationEnabled() { |
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return params.isRevocationEnabled(); |
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} |
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boolean policyMappingInhibited() { |
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return params.isPolicyMappingInhibited(); |
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} |
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boolean explicitPolicyRequired() { |
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return params.isExplicitPolicyRequired(); |
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} |
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boolean policyQualifiersRejected() { |
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return params.getPolicyQualifiersRejected(); |
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} |
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String sigProvider() { return params.getSigProvider(); } |
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boolean anyPolicyInhibited() { return params.isAnyPolicyInhibited(); } |
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// in rare cases we need access to the original params, for example |
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// in order to clone CertPathCheckers before building a new chain |
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PKIXParameters getPKIXParameters() { |
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return params; |
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} |
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} |
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static class BuilderParams extends ValidatorParams { |
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private PKIXBuilderParameters params; |
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private List<CertStore> stores; |
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private X500Principal targetSubject; |
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BuilderParams(PKIXBuilderParameters params) |
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throws InvalidAlgorithmParameterException |
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{ |
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super(params); |
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checkParams(params); |
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} |
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private void checkParams(PKIXBuilderParameters params) |
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throws InvalidAlgorithmParameterException |
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{ |
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CertSelector sel = targetCertConstraints(); |
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if (!(sel instanceof X509CertSelector)) { |
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throw new InvalidAlgorithmParameterException("the " |
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+ "targetCertConstraints parameter must be an " |
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+ "X509CertSelector"); |
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} |
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this.params = params; |
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this.targetSubject = getTargetSubject( |
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certStores(), (X509CertSelector)targetCertConstraints()); |
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} |
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@Override List<CertStore> certStores() { |
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if (stores == null) { |
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// reorder CertStores so that local CertStores are tried first |
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stores = new ArrayList<>(params.getCertStores()); |
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Collections.sort(stores, new CertStoreComparator()); |
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} |
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return stores; |
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} |
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int maxPathLength() { return params.getMaxPathLength(); } |
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PKIXBuilderParameters params() { return params; } |
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X500Principal targetSubject() { return targetSubject; } |
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/** |
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* Returns the target subject DN from the first X509Certificate that |
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* is fetched that matches the specified X509CertSelector. |
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*/ |
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private static X500Principal getTargetSubject(List<CertStore> stores, |
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X509CertSelector sel) |
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throws InvalidAlgorithmParameterException |
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{ |
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X500Principal subject = sel.getSubject(); |
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if (subject != null) { |
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return subject; |
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} |
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X509Certificate cert = sel.getCertificate(); |
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if (cert != null) { |
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subject = cert.getSubjectX500Principal(); |
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} |
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if (subject != null) { |
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return subject; |
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} |
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for (CertStore store : stores) { |
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try { |
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Collection<? extends Certificate> certs = |
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(Collection<? extends Certificate>) |
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store.getCertificates(sel); |
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if (!certs.isEmpty()) { |
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X509Certificate xc = |
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(X509Certificate)certs.iterator().next(); |
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return xc.getSubjectX500Principal(); |
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} |
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} catch (CertStoreException e) { |
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// ignore but log it |
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if (debug != null) { |
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debug.println("BuilderParams.getTargetSubjectDN: " + |
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"non-fatal exception retrieving certs: " + e); |
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e.printStackTrace(); |
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} |
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} |
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} |
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throw new InvalidAlgorithmParameterException |
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("Could not determine unique target subject"); |
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} |
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} |
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/** |
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* A CertStoreException with additional information about the type of |
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* CertStore that generated the exception. |
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*/ |
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static class CertStoreTypeException extends CertStoreException { |
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private static final long serialVersionUID = 7463352639238322556L; |
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private final String type; |
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CertStoreTypeException(String type, CertStoreException cse) { |
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super(cse.getMessage(), cse.getCause()); |
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this.type = type; |
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} |
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String getType() { |
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return type; |
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} |
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} |
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/** |
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* Comparator that orders CertStores so that local CertStores come before |
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* remote CertStores. |
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*/ |
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private static class CertStoreComparator implements Comparator<CertStore> { |
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@Override |
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public int compare(CertStore store1, CertStore store2) { |
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if (store1.getType().equals("Collection") || |
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store1.getCertStoreParameters() instanceof |
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CollectionCertStoreParameters) { |
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return -1; |
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} else { |
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return 1; |
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} |
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} |
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} |
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} |