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package org.apache.catalina.realm;
import org.apache.catalina.Realm;
import java.security.Principal;
import java.util.Arrays;
import java.util.List;
/**
* Generic implementation of java.security.Principal that
* is available for use by Realm implementations.
*
* @author Craig R. McClanahan
* @version $Revision: 1.2 $ $Date: 2005/12/08 01:27:52 $
*/
public class GenericPrincipal implements Principal {
// ----------------------------------------------------------- Constructors
/**
* Construct a new Principal, associated with the specified Realm, for the
* specified username and password.
*
* @param realm The Realm that owns this Principal
* @param name The username of the user represented by this Principal
* @param password Credentials used to authenticate this user
*/
public GenericPrincipal(Realm realm, String name, char[] password) {
this(realm, name, password, null);
}
/**
* Construct a new Principal, associated with the specified Realm, for the
* specified username and password, with the specified role names
* (as Strings).
*
* @param realm The Realm that owns this principal
* @param name The username of the user represented by this Principal
* @param password Credentials used to authenticate this user
* @param roles List of roles (must be Strings) possessed by this user
*/
public GenericPrincipal(Realm realm, String name, char[] password,
List roles) {
super();
this.realm = realm;
this.name = name;
this.password = ((password != null)? ((char[])password.clone()) : null);
if (roles != null) {
this.roles = new String[roles.size()];
this.roles = roles.toArray(this.roles);
if (this.roles.length > 0)
Arrays.sort(this.roles);
}
}
public GenericPrincipal(String name, char[] password,
List roles) {
super();
this.name = name;
this.password = ((password != null)? ((char[])password.clone()) : null);
if (roles != null) {
this.roles = new String[roles.size()];
this.roles = roles.toArray(this.roles);
if (this.roles.length > 0)
Arrays.sort(this.roles);
}
}
// ------------------------------------------------------------- Properties
/**
* The username of the user represented by this Principal.
*/
protected String name = null;
public String getName() {
return (this.name);
}
/**
* The authentication credentials for the user represented by
* this Principal.
*/
protected char[] password = null;
public char[] getPassword() {
return ((this.password != null)? ((char[])this.password.clone()) : null);
}
/**
* The Realm with which this Principal is associated.
*/
protected Realm realm = null;
public Realm getRealm() {
return (this.realm);
}
void setRealm( Realm realm ) {
this.realm=realm;
}
/**
* The set of roles associated with this user.
*/
protected String roles[] = new String[0];
public String[] getRoles() {
return (this.roles);
}
// --------------------------------------------------------- Public Methods
/**
* Does the user represented by this Principal possess the specified role?
*
* @param role Role to be tested
*/
public boolean hasRole(String role) {
if("*".equals(role)) // Special 2.4 role meaning everyone
return true;
if (role == null)
return (false);
return (Arrays.binarySearch(roles, role) >= 0);
}
/**
* Return a String representation of this object, which exposes only
* information that should be public.
*/
public String toString() {
StringBuilder sb = new StringBuilder("GenericPrincipal[");
sb.append(this.name);
sb.append("(");
for( int i=0;i