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8054834: Modular Source Code
Co-authored-by: Alan Bateman <alan.bateman@oracle.com> Co-authored-by: Alex Buckley <alex.buckley@oracle.com> Co-authored-by: Erik Joelsson <erik.joelsson@oracle.com> Co-authored-by: Jonathan Gibbons <jonathan.gibbons@oracle.com> Co-authored-by: Karen Kinnear <karen.kinnear@oracle.com> Co-authored-by: Magnus Ihse Bursie <magnus.ihse.bursie@oracle.com> Co-authored-by: Mandy Chung <mandy.chung@oracle.com> Co-authored-by: Mark Reinhold <mark.reinhold@oracle.com> Co-authored-by: Paul Sandoz <paul.sandoz@oracle.com> Reviewed-by: alanb, chegar, ihse, mduigou
This commit is contained in:
Chris Hegarty
parent
d1c0417898
commit
3bc69d393d
12567 changed files with 5941 additions and 5903 deletions
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/*
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* Copyright (c) 2003, 2013, 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.jca;
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import java.io.File;
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import java.lang.reflect.*;
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import java.security.*;
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import sun.security.util.PropertyExpander;
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/**
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* Class representing a configured provider. Encapsulates configuration
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* (className plus optional argument), the provider loading logic, and
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* the loaded Provider object itself.
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*
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* @author Andreas Sterbenz
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* @since 1.5
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*/
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final class ProviderConfig {
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private final static sun.security.util.Debug debug =
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sun.security.util.Debug.getInstance("jca", "ProviderConfig");
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// classname of the SunPKCS11-Solaris provider
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private static final String P11_SOL_NAME =
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"sun.security.pkcs11.SunPKCS11";
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// config file argument of the SunPKCS11-Solaris provider
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private static final String P11_SOL_ARG =
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"${java.home}/lib/security/sunpkcs11-solaris.cfg";
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// maximum number of times to try loading a provider before giving up
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private final static int MAX_LOAD_TRIES = 30;
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// parameters for the Provider(String) constructor,
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// use by doLoadProvider()
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private final static Class<?>[] CL_STRING = { String.class };
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// name of the provider class
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private final String className;
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// argument to the provider constructor,
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// empty string indicates no-arg constructor
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private final String argument;
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// number of times we have already tried to load this provider
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private int tries;
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// Provider object, if loaded
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private volatile Provider provider;
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// flag indicating if we are currently trying to load the provider
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// used to detect recursion
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private boolean isLoading;
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ProviderConfig(String className, String argument) {
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if (className.equals(P11_SOL_NAME) && argument.equals(P11_SOL_ARG)) {
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checkSunPKCS11Solaris();
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}
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this.className = className;
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this.argument = expand(argument);
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}
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ProviderConfig(String className) {
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this(className, "");
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}
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ProviderConfig(Provider provider) {
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this.className = provider.getClass().getName();
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this.argument = "";
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this.provider = provider;
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}
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// check if we should try to load the SunPKCS11-Solaris provider
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// avoid if not available (pre Solaris 10) to reduce startup time
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// or if disabled via system property
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private void checkSunPKCS11Solaris() {
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Boolean o = AccessController.doPrivileged(
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new PrivilegedAction<Boolean>() {
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public Boolean run() {
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File file = new File("/usr/lib/libpkcs11.so");
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if (file.exists() == false) {
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return Boolean.FALSE;
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}
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if ("false".equalsIgnoreCase(System.getProperty
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("sun.security.pkcs11.enable-solaris"))) {
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return Boolean.FALSE;
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}
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return Boolean.TRUE;
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}
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});
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if (o == Boolean.FALSE) {
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tries = MAX_LOAD_TRIES;
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}
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}
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private boolean hasArgument() {
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return argument.length() != 0;
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}
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// should we try to load this provider?
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private boolean shouldLoad() {
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return (tries < MAX_LOAD_TRIES);
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}
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// do not try to load this provider again
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private void disableLoad() {
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tries = MAX_LOAD_TRIES;
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}
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boolean isLoaded() {
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return (provider != null);
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}
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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}
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if (obj instanceof ProviderConfig == false) {
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return false;
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}
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ProviderConfig other = (ProviderConfig)obj;
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return this.className.equals(other.className)
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&& this.argument.equals(other.argument);
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}
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public int hashCode() {
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return className.hashCode() + argument.hashCode();
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}
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public String toString() {
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if (hasArgument()) {
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return className + "('" + argument + "')";
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} else {
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return className;
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}
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}
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/**
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* Get the provider object. Loads the provider if it is not already loaded.
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*/
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synchronized Provider getProvider() {
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// volatile variable load
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Provider p = provider;
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if (p != null) {
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return p;
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}
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if (shouldLoad() == false) {
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return null;
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}
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if (isLoading) {
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// because this method is synchronized, this can only
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// happen if there is recursion.
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if (debug != null) {
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debug.println("Recursion loading provider: " + this);
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new Exception("Call trace").printStackTrace();
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}
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return null;
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}
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try {
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isLoading = true;
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tries++;
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p = doLoadProvider();
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} finally {
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isLoading = false;
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}
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provider = p;
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return p;
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}
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/**
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* Load and instantiate the Provider described by this class.
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*
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* NOTE use of doPrivileged().
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*
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* @return null if the Provider could not be loaded
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*
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* @throws ProviderException if executing the Provider's constructor
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* throws a ProviderException. All other Exceptions are ignored.
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*/
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private Provider doLoadProvider() {
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return AccessController.doPrivileged(new PrivilegedAction<Provider>() {
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public Provider run() {
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if (debug != null) {
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debug.println("Loading provider: " + ProviderConfig.this);
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}
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try {
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ClassLoader cl = ClassLoader.getSystemClassLoader();
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Class<?> provClass;
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if (cl != null) {
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provClass = cl.loadClass(className);
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} else {
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provClass = Class.forName(className);
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}
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Object obj;
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if (hasArgument() == false) {
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obj = provClass.newInstance();
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} else {
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Constructor<?> cons = provClass.getConstructor(CL_STRING);
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obj = cons.newInstance(argument);
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}
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if (obj instanceof Provider) {
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if (debug != null) {
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debug.println("Loaded provider " + obj);
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}
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return (Provider)obj;
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} else {
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if (debug != null) {
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debug.println(className + " is not a provider");
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}
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disableLoad();
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return null;
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}
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} catch (Exception e) {
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Throwable t;
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if (e instanceof InvocationTargetException) {
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t = ((InvocationTargetException)e).getCause();
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} else {
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t = e;
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}
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if (debug != null) {
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debug.println("Error loading provider " + ProviderConfig.this);
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t.printStackTrace();
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}
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// provider indicates fatal error, pass through exception
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if (t instanceof ProviderException) {
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throw (ProviderException)t;
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}
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// provider indicates that loading should not be retried
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if (t instanceof UnsupportedOperationException) {
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disableLoad();
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}
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return null;
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} catch (ExceptionInInitializerError err) {
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// no sufficient permission to initialize provider class
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if (debug != null) {
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debug.println("Error loading provider " + ProviderConfig.this);
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err.printStackTrace();
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}
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disableLoad();
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return null;
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}
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}
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});
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}
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/**
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* Perform property expansion of the provider value.
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*
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* NOTE use of doPrivileged().
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*/
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private static String expand(final String value) {
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// shortcut if value does not contain any properties
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if (value.contains("${") == false) {
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return value;
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}
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return AccessController.doPrivileged(new PrivilegedAction<String>() {
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public String run() {
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try {
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return PropertyExpander.expand(value);
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} catch (GeneralSecurityException e) {
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throw new ProviderException(e);
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}
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}
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});
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}
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}
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