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Diffstat (limited to 'libjava/classpath/java/security/ProtectionDomain.java')
| -rw-r--r-- | libjava/classpath/java/security/ProtectionDomain.java | 274 |
1 files changed, 0 insertions, 274 deletions
diff --git a/libjava/classpath/java/security/ProtectionDomain.java b/libjava/classpath/java/security/ProtectionDomain.java deleted file mode 100644 index 7be5875dc72..00000000000 --- a/libjava/classpath/java/security/ProtectionDomain.java +++ /dev/null @@ -1,274 +0,0 @@ -/* 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; - -import java.util.Enumeration; - -/** - * 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; - - /** True if this protection domain has all permissions */ - private boolean hasAllPermissions; - - /** - * 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(); - /* Check if this protection domain has all permissions */ - Enumeration<Permission> e = permissions.elements(); - while (e.hasMoreElements()) - { - if (e.nextElement() instanceof AllPermission) - hasAllPermissions = true; - } - } - - 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 (hasAllPermissions) - return true; - 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()) - try - { - sb.append(Policy.getPolicy().getPermissions(this)); - } - catch (SecurityException e) - { - // We are not allowed access to the policy. - sb.append(perms); - } - else // fallback on this one's permissions - sb.append(perms); - else - sb.append(perms); - - return sb.append(linesep).append(")").append(linesep).toString(); - } -} |