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downloading a git-generated archive based on the 'upstream' tag
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1 files changed, 252 insertions, 0 deletions

diff --git a/libjava/classpath/java/security/ProtectionDomain.java b/libjava/classpath/java/security/ProtectionDomain.java
new file mode 100644
index 000000000..d5d657d61
--- /dev/null
+++ b/libjava/classpath/java/security/ProtectionDomain.java
@@ -0,0 +1,252 @@
+/* ProtectionDomain.java -- A security domain
+   Copyright (C) 1998, 2003, 2004  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., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 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 gnu.classpath.SystemProperties;
+
+import gnu.java.lang.CPStringBuilder;
+
+/**
+ * This class represents a group of classes, along with their granted
+ * permissions. The classes are identified by a {@link CodeSource}. Thus, any
+ * class loaded from the specified {@link CodeSource} is treated as part of
+ * this domain. The set of permissions is represented by an instance of
+ * {@link PermissionCollection}.
+ *
+ * <p>Every class in the system will belong to one and only one
+ * <code>ProtectionDomain</code>.</p>
+ *
+ * @author Aaron M. Renn (arenn@urbanophile.com)
+ * @version 0.0
+ */
+public class ProtectionDomain
+{
+  /** This is the <code>CodeSource</code> for this protection domain. */
+  private CodeSource code_source;
+
+  /** This is the set of permissions granted to this domain. */
+  private PermissionCollection perms;
+
+  /** The {@link ClassLoader} associated with this domain. */
+  private ClassLoader classloader;
+
+  /** The array of Principals associated with this domain.. */
+  private Principal[] principals;
+
+  /** Post 1.4 the policy may be refreshed! use false for pre 1.4. */
+  private boolean staticBinding;
+
+  /**
+   * Initializes a new instance of <code>ProtectionDomain</code> representing
+   * the specified {@link CodeSource} and set of permissions. No permissions
+   * can be added later to the {@link PermissionCollection} and this contructor
+   * will call the <code>setReadOnly</code> method on the specified set of
+   * permissions.
+   *
+   * @param codesource
+   *          The {@link CodeSource} for this domain.
+   * @param permissions
+   *          The set of permissions for this domain.
+   * @see PermissionCollection#setReadOnly()
+   */
+  public ProtectionDomain(CodeSource codesource, PermissionCollection permissions)
+  {
+    this(codesource, permissions, null, null, true);
+  }
+
+  /**
+   * This method initializes a new instance of <code>ProtectionDomain</code>
+   * given its {@link CodeSource}, granted permissions, associated
+   * {@link ClassLoader} and {@link Principal}s.
+   *
+   * <p>Similar to the previous constructor, if the designated set of
+   * permissions is not <code>null</code>, the <code>setReadOnly</code> method
+   * is called on that set.</p>
+   *
+   * @param codesource
+   *          The {@link CodeSource} for this domain.
+   * @param permissions
+   *          The permission set for this domain.
+   * @param classloader
+   *          the ClassLoader associated with this domain.
+   * @param principals
+   *          the array of {@link Principal}s associated with this domain.
+   * @since 1.4
+   * @see PermissionCollection#setReadOnly()
+   */
+  public ProtectionDomain(CodeSource codesource,
+                          PermissionCollection permissions,
+                          ClassLoader classloader, Principal[] principals)
+  {
+    this(codesource, permissions, classloader, principals, false);
+  }
+
+  private ProtectionDomain(CodeSource codesource,
+                           PermissionCollection permissions,
+                           ClassLoader classloader, Principal[] principals,
+                           boolean staticBinding)
+  {
+    super();
+
+    code_source = codesource;
+    if (permissions != null)
+      {
+        perms = permissions;
+        perms.setReadOnly();
+      }
+
+    this.classloader = classloader;
+    this.principals =
+        (principals != null ? (Principal[]) principals.clone() : new Principal[0]);
+    this.staticBinding = staticBinding;
+  }
+
+  /**
+   * Returns the {@link CodeSource} of this domain.
+   *
+   * @return the {@link CodeSource} of this domain.
+   * @since 1.2
+   */
+  public final CodeSource getCodeSource()
+  {
+    return code_source;
+  }
+
+  /**
+   * Returns the {@link ClassLoader} of this domain.
+   *
+   * @return the {@link ClassLoader} of this domain.
+   * @since 1.4
+   */
+  public final ClassLoader getClassLoader()
+  {
+    return this.classloader;
+  }
+
+  /**
+   * Returns a clone of the {@link Principal}s of this domain.
+   *
+   * @return a clone of the {@link Principal}s of this domain.
+   * @since 1.4
+   */
+  public final Principal[] getPrincipals()
+  {
+    return (Principal[]) principals.clone();
+  }
+
+  /**
+   * Returns the {@link PermissionCollection} of this domain.
+   *
+   * @return The {@link PermissionCollection} of this domain.
+   */
+  public final PermissionCollection getPermissions()
+  {
+    return perms;
+  }
+
+  /**
+   * Tests whether or not the specified {@link Permission} is implied by the
+   * set of permissions granted to this domain.
+   *
+   * @param permission
+   *          the {@link Permission} to test.
+   * @return <code>true</code> if the specified {@link Permission} is implied
+   *         for this domain, <code>false</code> otherwise.
+   */
+  public boolean implies(Permission permission)
+  {
+    if (staticBinding)
+      return (perms == null ? false : perms.implies(permission));
+    // Else dynamically bound.  Do we have it?
+    // NOTE: this will force loading of Policy.currentPolicy
+    return Policy.getCurrentPolicy().implies(this, permission);
+  }
+
+  /**
+   * Returns a string representation of this object. It will include the
+   * {@link CodeSource} and set of permissions associated with this domain.
+   *
+   * @return A string representation of this object.
+   */
+  public String toString()
+  {
+    String linesep = SystemProperties.getProperty("line.separator");
+    CPStringBuilder sb = new CPStringBuilder("ProtectionDomain (").append(linesep);
+
+    if (code_source == null)
+      sb.append("CodeSource:null");
+    else
+      sb.append(code_source);
+
+    sb.append(linesep);
+    if (classloader == null)
+      sb.append("ClassLoader:null");
+    else
+      sb.append(classloader);
+
+    sb.append(linesep);
+    sb.append("Principals:");
+    if (principals != null && principals.length > 0)
+      {
+        sb.append("[");
+        Principal pal;
+        for (int i = 0; i < principals.length; i++)
+          {
+            pal = principals[i];
+            sb.append("'").append(pal.getName())
+                .append("' of type ").append(pal.getClass().getName());
+            if (i < principals.length-1)
+              sb.append(", ");
+          }
+        sb.append("]");
+      }
+    else
+      sb.append("none");
+
+    sb.append(linesep);
+    if (!staticBinding) // include all but dont force loading Policy.currentPolicy
+      if (Policy.isLoaded())
+        sb.append(Policy.getCurrentPolicy().getPermissions(this));
+      else // fallback on this one's permissions
+        sb.append(perms);
+    else
+      sb.append(perms);
+
+    return sb.append(linesep).append(")").append(linesep).toString();
+  }
+}