+++ /dev/null
-/* CodeSource.java -- Code location and certifcates
- Copyright (C) 1998 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath 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 for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-package java.security;
-
-import java.io.Serializable;
-import java.net.URL;
-import java.net.SocketPermission;
-
-/**
- * This class represents a location from which code is loaded (as
- * represented by a URL) and the list of certificates that are used to
- * check the signatures of signed code loaded from this source.
- *
- * @version 0.0
- *
- * @author Aaron M. Renn (arenn@urbanophile.com)
- */
-public class CodeSource implements Serializable
-{
- private static final String linesep = System.getProperty("line.separator");
-
- /**
- * This is the URL that represents the code base from which code will
- * be loaded.
- */
- private URL location;
-
- /**
- * This is the list of certificates for this code base
- */
- // What is the serialized form of this?
- private java.security.cert.Certificate[] certs;
-
- /**
- * This method initializes a new instance of <code>CodeSource</code> that
- * loads code from the specified URL location and which uses the
- * specified certificates for verifying signatures.
- *
- * @param location The location from which code will be loaded
- * @param certs The list of certificates used for verifying signatures on code from this source
- */
- public CodeSource(URL location, java.security.cert.Certificate[] certs)
- {
- this.location = location;
- this.certs = certs;
- }
-
- /**
- * This method returns the URL specifying the location from which code
- * will be loaded under this <code>CodeSource</code>.
- *
- * @return The code location for this <code>CodeSource</code>.
- */
- public final URL getLocation()
- {
- return location;
- }
-
- /**
- * This method returns the list of digital certificates that can be used
- * to verify the signatures of code loaded under this <code>CodeSource</code>.
- *
- * @return The certifcate list for this <code>CodeSource</code>.
- */
- public final java.security.cert.Certificate[] getCertificates()
- {
- return certs;
- }
-
- /**
- * This method tests to see if a specified <code>CodeSource</code> is
- * implied by this object. Effectively, to meet this test, the specified
- * object must have all the certifcates this object has (but may have
- * more) and must have a location that is a subset of this object's. In order
- * for this object to imply the specified object, the following must be
- * true:
- * <p>
- * <ol>
- * <li>The specified <code>CodeSource</code> must not be <code>null</code>.
- * <li>If the specified <code>CodeSource</code> has a certificate list,
- * all of that object's certificates must be present in the certificate
- * list of this object.
- * <li>If this object does not have a <code>null</code> location, then
- * the following addtional tests must be passed.
- * <ol>
- * <li>The specified <code>CodeSource</code> must not have a <code>null</code> location.
- * <li>The specified <code>CodeSource</code>'s location must be equal to
- * this object's location, or<br>
- * <ul>
- * <li>The specifiec <code>CodeSource</code>'s location protocol, port,
- * and ref (aka, anchor) must equal this objects, and
- * <li>The specified <code>CodeSource</code>'s location host must imply this
- * object's location host, as determined by contructing
- * <code>SocketPermission</code> objects from each with no action list and
- * using that classes's <code>implies</code> method. And,
- * <li>If this object's location file ends with a '/', then the specified
- * object's location file must start with this object's location file.
- * Otherwise, the specified object's location file must start with this
- * object's location file with the '/' character appended to it.
- * </ul>
- * </ol>
- * </ol>
- *
- * @param cs The <code>CodeSource</code> to test against this object
- *
- * @return <code>true</code> if this specified <code>CodeSource</code> is specified by this object, <code>false</code> otherwise.
- */
- public boolean implies(CodeSource cs)
- {
- if (cs == null)
- return false;
-
- // First check the certificate list
- java.security.cert.Certificate[] their_certs = cs.getCertificates();
- java.security.cert.Certificate[] our_certs = getCertificates();
-
- if (our_certs != null)
- {
- if (their_certs == null)
- return false;
-
- for (int i = 0; i < our_certs.length; i++)
- {
- int j;
- for (j = 0; j < their_certs.length; j++)
- if (our_certs[i].equals(their_certs[j]))
- break;
-
- if (j == their_certs.length)
- return false;
- }
- }
-
- // Next check the location
- URL their_loc = getLocation();
- URL our_loc = getLocation();
-
- if (our_loc == null)
- return true;
- else if (their_loc == null)
- return false;
-
- if (!our_loc.getProtocol().equals(their_loc.getProtocol()))
- return false;
-
- if (our_loc.getPort() != -1)
- if (our_loc.getPort() != their_loc.getPort())
- return false;
-
- if (our_loc.getRef() != null)
- if (!our_loc.getRef().equals(their_loc.getRef()))
- return false;
-
- // See javadoc comments for what we are doing here.
- if (our_loc.getHost() != null)
- {
- String their_host = their_loc.getHost();
- if (their_host == null)
- return false;
-
- SocketPermission our_sockperm =
- new SocketPermission(our_loc.getHost(), "accept");
- SocketPermission their_sockperm =
- new SocketPermission(their_host, "accept");
-
- if (!our_sockperm.implies(their_sockperm))
- return false;
- }
-
- String our_file = our_loc.getFile();
- if (our_file != null)
- {
- if (!our_file.endsWith("/"))
- our_file = our_file + "/";
-
- String their_file = their_loc.getFile();
- if (their_file == null)
- return false;
-
- if (!their_file.startsWith(our_file))
- return false;
- }
-
- return true;
- }
-
- /**
- * This method tests the specified <code>Object</code> for equality with
- * this object. This will be true if and only if:
- * <p>
- * <ul>
- * <li>The specified object is not <code>null</code>.
- * <li>The specified object is an instance of <code>CodeSource</code>.
- * <li>The specified object's location is the same as this object's.
- * <li>The specified object's certificate list contains the exact same
- * entries as the object's. Note that the order of the certificate lists
- * is not significant.
- * </ul>
- *
- * @param obj The <code>Object</code> to test against.
- *
- * @return <code>true</code> if the specified object is equal to this one, <code>false</code> otherwise.
- */
- public boolean equals(Object obj)
- {
- if (obj == null)
- return false;
-
- if (!(obj instanceof CodeSource))
- return false;
-
- CodeSource cs = (CodeSource) obj;
-
- // First check the certificate list
- java.security.cert.Certificate[] their_certs = cs.getCertificates();
- java.security.cert.Certificate[] our_certs = getCertificates();
-
- if ((our_certs == null) && (their_certs != null))
- return false;
- else if ((our_certs != null) && (their_certs == null))
- return false;
-
- if (our_certs != null)
- {
- if (our_certs.length != their_certs.length)
- return false;
-
- for (int i = 0; i < our_certs.length; i++)
- {
- int j;
- for (j = 0; j < their_certs.length; j++)
- if (our_certs[i].equals(their_certs[j]))
- break;
-
- if (j == their_certs.length)
- return false;
- }
- }
-
- // Now the location
- URL their_loc = cs.getLocation();
- URL our_loc = getLocation();
-
- if ((our_loc == null) && (their_loc != null))
- return false;
-
- if (!our_loc.equals(their_loc))
- return false;
-
- return true;
- }
-
- /**
- * This method returns a hash value for this object.
- *
- * @return A hash value for this object.
- */
- public int hashCode()
- {
- URL location = getLocation();
- if (location == null)
- return System.identityHashCode(this);
-
- return location.hashCode();
- }
-
- /**
- * This method returns a <code>String</code> that represents this object.
- * This <code>String</code> will contain the object's hash code, location,
- * and certificate list.
- *
- * @return A <code>String</code> for this object
- */
- public String toString()
- {
- StringBuffer sb = new StringBuffer("");
-
- sb.append(super.toString() + " (" + linesep);
- sb.append("Location: " + getLocation() + linesep);
-
- java.security.cert.Certificate[] certs = getCertificates();
- if (certs == null)
- sb.append("<none>" + linesep);
- else
- for (int i = 0; i < certs.length; i++)
- sb.append(certs[i] + linesep);
-
- sb.append(")" + linesep);
-
- return sb.toString();
- }
-}
projects / msp430-gcc.git / blobdiff