| /* |
| * Copyright (c) 1999, 2006, 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 com.sun.security.auth; |
| |
| import java.net.URL; |
| import java.util.*; |
| import java.security.CodeSource; |
| import java.security.Principal; |
| import java.security.cert.Certificate; |
| import java.lang.reflect.Constructor; |
| |
| import javax.security.auth.Subject; |
| |
| /** |
| * <p> This <code>SubjectCodeSource</code> class contains |
| * a <code>URL</code>, signer certificates, and either a <code>Subject</code> |
| * (that represents the <code>Subject</code> in the current |
| * <code>AccessControlContext</code>), |
| * or a linked list of Principals/PrincipalComparators |
| * (that represent a "subject" in a <code>Policy</code>). |
| * |
| */ |
| class SubjectCodeSource extends CodeSource implements java.io.Serializable { |
| |
| private static final long serialVersionUID = 6039418085604715275L; |
| |
| private static final java.util.ResourceBundle rb = |
| java.security.AccessController.doPrivileged |
| (new java.security.PrivilegedAction<java.util.ResourceBundle>() { |
| public java.util.ResourceBundle run() { |
| return (java.util.ResourceBundle.getBundle |
| ("sun.security.util.AuthResources")); |
| } |
| }); |
| |
| private Subject subject; |
| private LinkedList<PolicyParser.PrincipalEntry> principals; |
| private static final Class[] PARAMS = { String.class }; |
| private static final sun.security.util.Debug debug = |
| sun.security.util.Debug.getInstance("auth", "\t[Auth Access]"); |
| private ClassLoader sysClassLoader; |
| |
| /** |
| * Creates a new <code>SubjectCodeSource</code> |
| * with the given <code>Subject</code>, principals, <code>URL</code>, |
| * and signers (Certificates). The <code>Subject</code> |
| * represents the <code>Subject</code> associated with the current |
| * <code>AccessControlContext</code>. |
| * The Principals are given as a <code>LinkedList</code> |
| * of <code>PolicyParser.PrincipalEntry</code> objects. |
| * Typically either a <code>Subject</code> will be provided, |
| * or a list of <code>principals</code> will be provided |
| * (not both). |
| * |
| * <p> |
| * |
| * @param subject the <code>Subject</code> associated with this |
| * <code>SubjectCodeSource</code> <p> |
| * |
| * @param url the <code>URL</code> associated with this |
| * <code>SubjectCodeSource</code> <p> |
| * |
| * @param certs the signers associated with this |
| * <code>SubjectCodeSource</code> <p> |
| */ |
| SubjectCodeSource(Subject subject, |
| LinkedList<PolicyParser.PrincipalEntry> principals, |
| URL url, Certificate[] certs) { |
| |
| super(url, certs); |
| this.subject = subject; |
| this.principals = (principals == null ? |
| new LinkedList<PolicyParser.PrincipalEntry>() : |
| new LinkedList<PolicyParser.PrincipalEntry>(principals)); |
| sysClassLoader = java.security.AccessController.doPrivileged |
| (new java.security.PrivilegedAction<ClassLoader>() { |
| public ClassLoader run() { |
| return ClassLoader.getSystemClassLoader(); |
| } |
| }); |
| } |
| |
| /** |
| * Get the Principals associated with this <code>SubjectCodeSource</code>. |
| * The Principals are retrieved as a <code>LinkedList</code> |
| * of <code>PolicyParser.PrincipalEntry</code> objects. |
| * |
| * <p> |
| * |
| * @return the Principals associated with this |
| * <code>SubjectCodeSource</code> as a <code>LinkedList</code> |
| * of <code>PolicyParser.PrincipalEntry</code> objects. |
| */ |
| LinkedList<PolicyParser.PrincipalEntry> getPrincipals() { |
| return principals; |
| } |
| |
| /** |
| * Get the <code>Subject</code> associated with this |
| * <code>SubjectCodeSource</code>. The <code>Subject</code> |
| * represents the <code>Subject</code> associated with the |
| * current <code>AccessControlContext</code>. |
| * |
| * <p> |
| * |
| * @return the <code>Subject</code> associated with this |
| * <code>SubjectCodeSource</code>. |
| */ |
| Subject getSubject() { |
| return subject; |
| } |
| |
| /** |
| * Returns true if this <code>SubjectCodeSource</code> object "implies" |
| * the specified <code>CodeSource</code>. |
| * More specifically, this method makes the following checks. |
| * If any fail, it returns false. If they all succeed, it returns true. |
| * |
| * <p> |
| * <ol> |
| * <li> The provided codesource must not be <code>null</code>. |
| * <li> codesource must be an instance of <code>SubjectCodeSource</code>. |
| * <li> super.implies(codesource) must return true. |
| * <li> for each principal in this codesource's principal list: |
| * <ol> |
| * <li> if the principal is an instanceof |
| * <code>PrincipalComparator</code>, then the principal must |
| * imply the provided codesource's <code>Subject</code>. |
| * <li> if the principal is not an instanceof |
| * <code>PrincipalComparator</code>, then the provided |
| * codesource's <code>Subject</code> must have an |
| * associated <code>Principal</code>, <i>P</i>, where |
| * P.getClass().getName equals principal.principalClass, |
| * and P.getName() equals principal.principalName. |
| * </ol> |
| * </ol> |
| * |
| * <p> |
| * |
| * @param codesource the <code>CodeSource</code> to compare against. |
| * |
| * @return true if this <code>SubjectCodeSource</code> implies the |
| * the specified <code>CodeSource</code>. |
| */ |
| public boolean implies(CodeSource codesource) { |
| |
| LinkedList<PolicyParser.PrincipalEntry> subjectList = null; |
| |
| if (codesource == null || |
| !(codesource instanceof SubjectCodeSource) || |
| !(super.implies(codesource))) { |
| |
| if (debug != null) |
| debug.println("\tSubjectCodeSource.implies: FAILURE 1"); |
| return false; |
| } |
| |
| SubjectCodeSource that = (SubjectCodeSource)codesource; |
| |
| // if the principal list in the policy "implies" |
| // the Subject associated with the current AccessControlContext, |
| // then return true |
| |
| if (this.principals == null) { |
| if (debug != null) |
| debug.println("\tSubjectCodeSource.implies: PASS 1"); |
| return true; |
| } |
| |
| if (that.getSubject() == null || |
| that.getSubject().getPrincipals().size() == 0) { |
| if (debug != null) |
| debug.println("\tSubjectCodeSource.implies: FAILURE 2"); |
| return false; |
| } |
| |
| ListIterator<PolicyParser.PrincipalEntry> li = |
| this.principals.listIterator(0); |
| while (li.hasNext()) { |
| PolicyParser.PrincipalEntry pppe = li.next(); |
| try { |
| |
| // handle PrincipalComparators |
| |
| Class principalComparator = Class.forName(pppe.principalClass, |
| true, |
| sysClassLoader); |
| Constructor c = principalComparator.getConstructor(PARAMS); |
| PrincipalComparator pc = |
| (PrincipalComparator)c.newInstance |
| (new Object[] { pppe.principalName }); |
| |
| if (!pc.implies(that.getSubject())) { |
| if (debug != null) |
| debug.println("\tSubjectCodeSource.implies: FAILURE 3"); |
| return false; |
| } else { |
| if (debug != null) |
| debug.println("\tSubjectCodeSource.implies: PASS 2"); |
| return true; |
| } |
| } catch (Exception e) { |
| |
| // no PrincipalComparator, simply compare Principals |
| |
| if (subjectList == null) { |
| |
| if (that.getSubject() == null) { |
| if (debug != null) |
| debug.println("\tSubjectCodeSource.implies: " + |
| "FAILURE 4"); |
| return false; |
| } |
| Iterator<Principal> i = |
| that.getSubject().getPrincipals().iterator(); |
| |
| subjectList = new LinkedList<PolicyParser.PrincipalEntry>(); |
| while (i.hasNext()) { |
| Principal p = i.next(); |
| PolicyParser.PrincipalEntry spppe = |
| new PolicyParser.PrincipalEntry |
| (p.getClass().getName(), p.getName()); |
| subjectList.add(spppe); |
| } |
| } |
| |
| if (!subjectListImpliesPrincipalEntry(subjectList, pppe)) { |
| if (debug != null) |
| debug.println("\tSubjectCodeSource.implies: FAILURE 5"); |
| return false; |
| } |
| } |
| } |
| |
| if (debug != null) |
| debug.println("\tSubjectCodeSource.implies: PASS 3"); |
| return true; |
| } |
| |
| /** |
| * This method returns, true, if the provided <i>subjectList</i> |
| * "contains" the <code>Principal</code> specified |
| * in the provided <i>pppe</i> argument. |
| * |
| * Note that the provided <i>pppe</i> argument may have |
| * wildcards (*) for the <code>Principal</code> class and name, |
| * which need to be considered. |
| * |
| * <p> |
| * |
| * @param subjectList a list of PolicyParser.PrincipalEntry objects |
| * that correspond to all the Principals in the Subject currently |
| * on this thread's AccessControlContext. <p> |
| * |
| * @param pppe the Principals specified in a grant entry. |
| * |
| * @return true if the provided <i>subjectList</i> "contains" |
| * the <code>Principal</code> specified in the provided |
| * <i>pppe</i> argument. |
| */ |
| private boolean subjectListImpliesPrincipalEntry( |
| LinkedList<PolicyParser.PrincipalEntry> subjectList, |
| PolicyParser.PrincipalEntry pppe) { |
| |
| ListIterator<PolicyParser.PrincipalEntry> li = |
| subjectList.listIterator(0); |
| while (li.hasNext()) { |
| PolicyParser.PrincipalEntry listPppe = li.next(); |
| |
| if (pppe.principalClass.equals |
| (PolicyParser.PrincipalEntry.WILDCARD_CLASS) || |
| pppe.principalClass.equals |
| (listPppe.principalClass)) { |
| |
| if (pppe.principalName.equals |
| (PolicyParser.PrincipalEntry.WILDCARD_NAME) || |
| pppe.principalName.equals |
| (listPppe.principalName)) |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Tests for equality between the specified object and this |
| * object. Two <code>SubjectCodeSource</code> objects are considered equal |
| * if their locations are of identical value, if the two sets of |
| * Certificates are of identical values, and if the |
| * Subjects are equal, and if the PolicyParser.PrincipalEntry values |
| * are of identical values. It is not required that |
| * the Certificates or PolicyParser.PrincipalEntry values |
| * be in the same order. |
| * |
| * <p> |
| * |
| * @param obj the object to test for equality with this object. |
| * |
| * @return true if the objects are considered equal, false otherwise. |
| */ |
| public boolean equals(Object obj) { |
| |
| if (obj == this) |
| return true; |
| |
| if (super.equals(obj) == false) |
| return false; |
| |
| if (!(obj instanceof SubjectCodeSource)) |
| return false; |
| |
| SubjectCodeSource that = (SubjectCodeSource)obj; |
| |
| // the principal lists must match |
| try { |
| if (this.getSubject() != that.getSubject()) |
| return false; |
| } catch (SecurityException se) { |
| return false; |
| } |
| |
| if ((this.principals == null && that.principals != null) || |
| (this.principals != null && that.principals == null)) |
| return false; |
| |
| if (this.principals != null && that.principals != null) { |
| if (!this.principals.containsAll(that.principals) || |
| !that.principals.containsAll(this.principals)) |
| |
| return false; |
| } |
| |
| return true; |
| } |
| |
| /** |
| * Return a hashcode for this <code>SubjectCodeSource</code>. |
| * |
| * <p> |
| * |
| * @return a hashcode for this <code>SubjectCodeSource</code>. |
| */ |
| public int hashCode() { |
| return super.hashCode(); |
| } |
| |
| /** |
| * Return a String representation of this <code>SubjectCodeSource</code>. |
| * |
| * <p> |
| * |
| * @return a String representation of this <code>SubjectCodeSource</code>. |
| */ |
| public String toString() { |
| String returnMe = super.toString(); |
| if (getSubject() != null) { |
| if (debug != null) { |
| final Subject finalSubject = getSubject(); |
| returnMe = returnMe + "\n" + |
| java.security.AccessController.doPrivileged |
| (new java.security.PrivilegedAction<String>() { |
| public String run() { |
| return finalSubject.toString(); |
| } |
| }); |
| } else { |
| returnMe = returnMe + "\n" + getSubject().toString(); |
| } |
| } |
| if (principals != null) { |
| ListIterator<PolicyParser.PrincipalEntry> li = |
| principals.listIterator(); |
| while (li.hasNext()) { |
| PolicyParser.PrincipalEntry pppe = li.next(); |
| returnMe = returnMe + rb.getString("\n") + |
| pppe.principalClass + " " + |
| pppe.principalName; |
| } |
| } |
| return returnMe; |
| } |
| } |
