--- a/jdk/src/java.base/share/classes/sun/security/provider/certpath/ReverseState.java Thu Apr 23 18:21:26 2015 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,406 +0,0 @@
-/*
- * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package sun.security.provider.certpath;
-
-import java.io.IOException;
-import java.security.PublicKey;
-import java.security.cert.CertificateException;
-import java.security.cert.CertPathValidatorException;
-import java.security.cert.PKIXCertPathChecker;
-import java.security.cert.PKIXRevocationChecker;
-import java.security.cert.TrustAnchor;
-import java.security.cert.X509Certificate;
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.List;
-import java.util.ListIterator;
-import java.util.Set;
-import javax.security.auth.x500.X500Principal;
-
-import sun.security.provider.certpath.PKIX.BuilderParams;
-import sun.security.util.Debug;
-import sun.security.x509.NameConstraintsExtension;
-import sun.security.x509.SubjectKeyIdentifierExtension;
-import sun.security.x509.X509CertImpl;
-
-/**
- * A specification of a reverse PKIX validation state
- * which is initialized by each build and updated each time a
- * certificate is added to the current path.
- * @since 1.4
- * @author Sean Mullan
- * @author Yassir Elley
- */
-
-class ReverseState implements State {
-
- private static final Debug debug = Debug.getInstance("certpath");
-
- /* The subject DN of the last cert in the path */
- X500Principal subjectDN;
-
- /* The subject public key of the last cert */
- PublicKey pubKey;
-
- /* The subject key identifier extension (if any) of the last cert */
- SubjectKeyIdentifierExtension subjKeyId;
-
- /* The PKIX constrained/excluded subtrees state variable */
- NameConstraintsExtension nc;
-
- /* The PKIX explicit policy, policy mapping, and inhibit_any-policy
- state variables */
- int explicitPolicy;
- int policyMapping;
- int inhibitAnyPolicy;
- int certIndex;
- PolicyNodeImpl rootNode;
-
- /* The number of remaining CA certs which may follow in the path.
- * -1: previous cert was an EE cert
- * 0: only EE certs may follow.
- * >0 and <Integer.MAX_VALUE:no more than this number of CA certs may follow
- * Integer.MAX_VALUE: unlimited
- */
- int remainingCACerts;
-
- /* The list of user-defined checkers retrieved from the PKIXParameters
- * instance */
- ArrayList<PKIXCertPathChecker> userCheckers;
-
- /* Flag indicating if state is initial (path is just starting) */
- private boolean init = true;
-
- /* the checker used for revocation status */
- RevocationChecker revChecker;
-
- /* the algorithm checker */
- AlgorithmChecker algorithmChecker;
-
- /* the untrusted certificates checker */
- UntrustedChecker untrustedChecker;
-
- /* the trust anchor used to validate the path */
- TrustAnchor trustAnchor;
-
- /* Flag indicating if current cert can vouch for the CRL for
- * the next cert
- */
- boolean crlSign = true;
-
- /**
- * Returns a boolean flag indicating if the state is initial
- * (just starting)
- *
- * @return boolean flag indicating if the state is initial (just starting)
- */
- @Override
- public boolean isInitial() {
- return init;
- }
-
- /**
- * Display state for debugging purposes
- */
- @Override
- public String toString() {
- StringBuilder sb = new StringBuilder();
- sb.append("State [");
- sb.append("\n subjectDN of last cert: ").append(subjectDN);
- sb.append("\n subjectKeyIdentifier: ").append
- (String.valueOf(subjKeyId));
- sb.append("\n nameConstraints: ").append(String.valueOf(nc));
- sb.append("\n certIndex: ").append(certIndex);
- sb.append("\n explicitPolicy: ").append(explicitPolicy);
- sb.append("\n policyMapping: ").append(policyMapping);
- sb.append("\n inhibitAnyPolicy: ").append(inhibitAnyPolicy);
- sb.append("\n rootNode: ").append(rootNode);
- sb.append("\n remainingCACerts: ").append(remainingCACerts);
- sb.append("\n crlSign: ").append(crlSign);
- sb.append("\n init: ").append(init);
- sb.append("\n]\n");
- return sb.toString();
- }
-
- /**
- * Initialize the state.
- *
- * @param buildParams builder parameters
- */
- public void initState(BuilderParams buildParams)
- throws CertPathValidatorException
- {
- /*
- * Initialize number of remainingCACerts.
- * Note that -1 maxPathLen implies unlimited.
- * 0 implies only an EE cert is acceptable.
- */
- int maxPathLen = buildParams.maxPathLength();
- remainingCACerts = (maxPathLen == -1) ? Integer.MAX_VALUE
- : maxPathLen;
-
- /* Initialize explicit policy state variable */
- if (buildParams.explicitPolicyRequired()) {
- explicitPolicy = 0;
- } else {
- // unconstrained if maxPathLen is -1,
- // otherwise, we want to initialize this to the value of the
- // longest possible path + 1 (i.e. maxpathlen + finalcert + 1)
- explicitPolicy = (maxPathLen == -1) ? maxPathLen : maxPathLen + 2;
- }
-
- /* Initialize policy mapping state variable */
- if (buildParams.policyMappingInhibited()) {
- policyMapping = 0;
- } else {
- policyMapping = (maxPathLen == -1) ? maxPathLen : maxPathLen + 2;
- }
-
- /* Initialize inhibit any policy state variable */
- if (buildParams.anyPolicyInhibited()) {
- inhibitAnyPolicy = 0;
- } else {
- inhibitAnyPolicy = (maxPathLen == -1) ? maxPathLen : maxPathLen + 2;
- }
-
- /* Initialize certIndex */
- certIndex = 1;
-
- /* Initialize policy tree */
- Set<String> initExpPolSet = new HashSet<>(1);
- initExpPolSet.add(PolicyChecker.ANY_POLICY);
-
- rootNode = new PolicyNodeImpl(null, PolicyChecker.ANY_POLICY, null,
- false, initExpPolSet, false);
-
- /*
- * Initialize each user-defined checker
- * Shallow copy the checkers
- */
- userCheckers = new ArrayList<>(buildParams.certPathCheckers());
- /* initialize each checker (just in case) */
- for (PKIXCertPathChecker checker : userCheckers) {
- checker.init(false);
- }
-
- /* Start by trusting the cert to sign CRLs */
- crlSign = true;
-
- init = true;
- }
-
- /**
- * Update the state with the specified trust anchor.
- *
- * @param anchor the most-trusted CA
- * @param buildParams builder parameters
- */
- public void updateState(TrustAnchor anchor, BuilderParams buildParams)
- throws CertificateException, IOException, CertPathValidatorException
- {
- trustAnchor = anchor;
- X509Certificate trustedCert = anchor.getTrustedCert();
- if (trustedCert != null) {
- updateState(trustedCert);
- } else {
- X500Principal caName = anchor.getCA();
- updateState(anchor.getCAPublicKey(), caName);
- }
-
- // The user specified AlgorithmChecker and RevocationChecker may not be
- // able to set the trust anchor until now.
- boolean revCheckerAdded = false;
- for (PKIXCertPathChecker checker : userCheckers) {
- if (checker instanceof AlgorithmChecker) {
- ((AlgorithmChecker)checker).trySetTrustAnchor(anchor);
- } else if (checker instanceof PKIXRevocationChecker) {
- if (revCheckerAdded) {
- throw new CertPathValidatorException(
- "Only one PKIXRevocationChecker can be specified");
- }
- // if it's our own, initialize it
- if (checker instanceof RevocationChecker) {
- ((RevocationChecker)checker).init(anchor, buildParams);
- }
- ((PKIXRevocationChecker)checker).init(false);
- revCheckerAdded = true;
- }
- }
-
- // only create a RevocationChecker if revocation is enabled and
- // a PKIXRevocationChecker has not already been added
- if (buildParams.revocationEnabled() && !revCheckerAdded) {
- revChecker = new RevocationChecker(anchor, buildParams);
- revChecker.init(false);
- }
-
- init = false;
- }
-
- /**
- * Update the state. This method is used when the most-trusted CA is
- * a trusted public-key and caName, instead of a trusted cert.
- *
- * @param pubKey the public key of the trusted CA
- * @param subjectDN the subject distinguished name of the trusted CA
- */
- private void updateState(PublicKey pubKey, X500Principal subjectDN) {
-
- /* update subject DN */
- this.subjectDN = subjectDN;
-
- /* update subject public key */
- this.pubKey = pubKey;
- }
-
- /**
- * Update the state with the next certificate added to the path.
- *
- * @param cert the certificate which is used to update the state
- */
- public void updateState(X509Certificate cert)
- throws CertificateException, IOException, CertPathValidatorException {
-
- if (cert == null) {
- return;
- }
-
- /* update subject DN */
- subjectDN = cert.getSubjectX500Principal();
-
- /* check for key needing to inherit alg parameters */
- X509CertImpl icert = X509CertImpl.toImpl(cert);
- PublicKey newKey = cert.getPublicKey();
- if (PKIX.isDSAPublicKeyWithoutParams(newKey)) {
- newKey = BasicChecker.makeInheritedParamsKey(newKey, pubKey);
- }
-
- /* update subject public key */
- pubKey = newKey;
-
- /*
- * if this is a trusted cert (init == true), then we
- * don't update any of the remaining fields
- */
- if (init) {
- init = false;
- return;
- }
-
- /* update subject key identifier */
- subjKeyId = icert.getSubjectKeyIdentifierExtension();
-
- /* update crlSign */
- crlSign = RevocationChecker.certCanSignCrl(cert);
-
- /* update current name constraints */
- if (nc != null) {
- nc.merge(icert.getNameConstraintsExtension());
- } else {
- nc = icert.getNameConstraintsExtension();
- if (nc != null) {
- // Make sure we do a clone here, because we're probably
- // going to modify this object later and we don't want to
- // be sharing it with a Certificate object!
- nc = (NameConstraintsExtension) nc.clone();
- }
- }
-
- /* update policy state variables */
- explicitPolicy =
- PolicyChecker.mergeExplicitPolicy(explicitPolicy, icert, false);
- policyMapping =
- PolicyChecker.mergePolicyMapping(policyMapping, icert);
- inhibitAnyPolicy =
- PolicyChecker.mergeInhibitAnyPolicy(inhibitAnyPolicy, icert);
- certIndex++;
-
- /*
- * Update remaining CA certs
- */
- remainingCACerts =
- ConstraintsChecker.mergeBasicConstraints(cert, remainingCACerts);
-
- init = false;
- }
-
- /**
- * Returns a boolean flag indicating if a key lacking necessary key
- * algorithm parameters has been encountered.
- *
- * @return boolean flag indicating if key lacking parameters encountered.
- */
- @Override
- public boolean keyParamsNeeded() {
- /* when building in reverse, we immediately get parameters needed
- * or else throw an exception
- */
- return false;
- }
-
- /*
- * Clone current state. The state is cloned as each cert is
- * added to the path. This is necessary if backtracking occurs,
- * and a prior state needs to be restored.
- *
- * Note that this is a SMART clone. Not all fields are fully copied,
- * because some of them (e.g., subjKeyId) will
- * not have their contents modified by subsequent calls to updateState.
- */
- @Override
- @SuppressWarnings("unchecked") // Safe casts assuming clone() works correctly
- public Object clone() {
- try {
- ReverseState clonedState = (ReverseState) super.clone();
-
- /* clone checkers, if cloneable */
- clonedState.userCheckers =
- (ArrayList<PKIXCertPathChecker>)userCheckers.clone();
- ListIterator<PKIXCertPathChecker> li =
- clonedState.userCheckers.listIterator();
- while (li.hasNext()) {
- PKIXCertPathChecker checker = li.next();
- if (checker instanceof Cloneable) {
- li.set((PKIXCertPathChecker)checker.clone());
- }
- }
-
- /* make copy of name constraints */
- if (nc != null) {
- clonedState.nc = (NameConstraintsExtension) nc.clone();
- }
-
- /* make copy of policy tree */
- if (rootNode != null) {
- clonedState.rootNode = rootNode.copyTree();
- }
-
- return clonedState;
- } catch (CloneNotSupportedException e) {
- throw new InternalError(e.toString(), e);
- }
- }
-}