0N/A/*
2619N/A * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/Apackage sun.security.x509;
0N/A
0N/Aimport java.io.IOException;
2619N/Aimport java.util.Locale;
0N/A
0N/Aimport sun.security.util.*;
0N/A
0N/A/**
0N/A * This class implements the RFC822Name as required by the GeneralNames
0N/A * ASN.1 object.
0N/A *
0N/A * @author Amit Kapoor
0N/A * @author Hemma Prafullchandra
0N/A * @see GeneralName
0N/A * @see GeneralNames
0N/A * @see GeneralNameInterface
0N/A */
0N/Apublic class RFC822Name implements GeneralNameInterface
0N/A{
0N/A private String name;
0N/A
0N/A /**
0N/A * Create the RFC822Name object from the passed encoded Der value.
0N/A *
0N/A * @param derValue the encoded DER RFC822Name.
0N/A * @exception IOException on error.
0N/A */
0N/A public RFC822Name(DerValue derValue) throws IOException {
0N/A name = derValue.getIA5String();
0N/A parseName(name);
0N/A }
0N/A
0N/A /**
0N/A * Create the RFC822Name object with the specified name.
0N/A *
0N/A * @param name the RFC822Name.
0N/A * @throws IOException on invalid input name
0N/A */
0N/A public RFC822Name(String name) throws IOException {
0N/A parseName(name);
0N/A this.name = name;
0N/A }
0N/A
0N/A /**
0N/A * Parse an RFC822Name string to see if it is a valid
0N/A * addr-spec according to IETF RFC822 and RFC2459:
0N/A * [local-part@]domain
0N/A * <p>
0N/A * local-part@ could be empty for an RFC822Name NameConstraint,
0N/A * but the domain at least must be non-empty. Case is not
0N/A * significant.
0N/A *
0N/A * @param name the RFC822Name string
0N/A * @throws IOException if name is not valid
0N/A */
0N/A public void parseName(String name) throws IOException {
0N/A if (name == null || name.length() == 0) {
0N/A throw new IOException("RFC822Name may not be null or empty");
0N/A }
0N/A // See if domain is a valid domain name
0N/A String domain = name.substring(name.indexOf('@')+1);
0N/A if (domain.length() == 0) {
0N/A throw new IOException("RFC822Name may not end with @");
0N/A } else {
0N/A //An RFC822 NameConstraint could start with a ., although
0N/A //a DNSName may not
0N/A if (domain.startsWith(".")) {
0N/A if (domain.length() == 1)
0N/A throw new IOException("RFC822Name domain may not be just .");
0N/A }
0N/A }
0N/A }
0N/A
0N/A /**
0N/A * Return the type of the GeneralName.
0N/A */
0N/A public int getType() {
0N/A return (GeneralNameInterface.NAME_RFC822);
0N/A }
0N/A
0N/A /**
0N/A * Return the actual name value of the GeneralName.
0N/A */
0N/A public String getName() {
0N/A return name;
0N/A }
0N/A
0N/A /**
0N/A * Encode the RFC822 name into the DerOutputStream.
0N/A *
0N/A * @param out the DER stream to encode the RFC822Name to.
0N/A * @exception IOException on encoding errors.
0N/A */
0N/A public void encode(DerOutputStream out) throws IOException {
0N/A out.putIA5String(name);
0N/A }
0N/A
0N/A /**
0N/A * Convert the name into user readable string.
0N/A */
0N/A public String toString() {
0N/A return ("RFC822Name: " + name);
0N/A }
0N/A
0N/A /**
0N/A * Compares this name with another, for equality.
0N/A *
0N/A * @return true iff the names are equivalent
0N/A * according to RFC2459.
0N/A */
0N/A public boolean equals(Object obj) {
0N/A if (this == obj)
0N/A return true;
0N/A
0N/A if (!(obj instanceof RFC822Name))
0N/A return false;
0N/A
0N/A RFC822Name other = (RFC822Name)obj;
0N/A
0N/A // RFC2459 mandates that these names are
0N/A // not case-sensitive
0N/A return name.equalsIgnoreCase(other.name);
0N/A }
0N/A
0N/A /**
0N/A * Returns the hash code value for this object.
0N/A *
0N/A * @return a hash code value for this object.
0N/A */
0N/A public int hashCode() {
0N/A return name.toUpperCase().hashCode();
0N/A }
0N/A
0N/A /**
0N/A * Return constraint type:<ul>
0N/A * <li>NAME_DIFF_TYPE = -1: input name is different type from name (i.e. does not constrain)
0N/A * <li>NAME_MATCH = 0: input name matches name
0N/A * <li>NAME_NARROWS = 1: input name narrows name
0N/A * <li>NAME_WIDENS = 2: input name widens name
0N/A * <li>NAME_SAME_TYPE = 3: input name does not match or narrow name, but is same type
0N/A * </ul>. These results are used in checking NameConstraints during
0N/A * certification path verification.
0N/A * <p>
0N/A * [RFC2459] When the subjectAltName extension contains an Internet mail address,
0N/A * the address MUST be included as an rfc822Name. The format of an
0N/A * rfc822Name is an "addr-spec" as defined in RFC 822 [RFC 822]. An
0N/A * addr-spec has the form "local-part@domain". Note that an addr-spec
0N/A * has no phrase (such as a common name) before it, has no comment (text
0N/A * surrounded in parentheses) after it, and is not surrounded by "&lt;" and
0N/A * "&gt;". Note that while upper and lower case letters are allowed in an
0N/A * RFC 822 addr-spec, no significance is attached to the case.
0N/A * <p>
0N/A * @param inputName to be checked for being constrained
0N/A * @returns constraint type above
0N/A * @throws UnsupportedOperationException if name is not exact match, but narrowing and widening are
0N/A * not supported for this name type.
0N/A */
0N/A public int constrains(GeneralNameInterface inputName) throws UnsupportedOperationException {
0N/A int constraintType;
0N/A if (inputName == null)
0N/A constraintType = NAME_DIFF_TYPE;
0N/A else if (inputName.getType() != (GeneralNameInterface.NAME_RFC822)) {
0N/A constraintType = NAME_DIFF_TYPE;
0N/A } else {
0N/A //RFC2459 specifies that case is not significant in RFC822Names
2619N/A String inName =
2619N/A (((RFC822Name)inputName).getName()).toLowerCase(Locale.ENGLISH);
2619N/A String thisName = name.toLowerCase(Locale.ENGLISH);
0N/A if (inName.equals(thisName)) {
0N/A constraintType = NAME_MATCH;
0N/A } else if (thisName.endsWith(inName)) {
0N/A /* if both names contain @, then they had to match exactly */
0N/A if (inName.indexOf('@') != -1) {
0N/A constraintType = NAME_SAME_TYPE;
0N/A } else if (inName.startsWith(".")) {
0N/A constraintType = NAME_WIDENS;
0N/A } else {
0N/A int inNdx = thisName.lastIndexOf(inName);
0N/A if (thisName.charAt(inNdx-1) == '@' ) {
0N/A constraintType = NAME_WIDENS;
0N/A } else {
0N/A constraintType = NAME_SAME_TYPE;
0N/A }
0N/A }
0N/A } else if (inName.endsWith(thisName)) {
0N/A /* if thisName contains @, then they had to match exactly */
0N/A if (thisName.indexOf('@') != -1) {
0N/A constraintType = NAME_SAME_TYPE;
0N/A } else if (thisName.startsWith(".")) {
0N/A constraintType = NAME_NARROWS;
0N/A } else {
0N/A int ndx = inName.lastIndexOf(thisName);
0N/A if (inName.charAt(ndx-1) == '@') {
0N/A constraintType = NAME_NARROWS;
0N/A } else {
0N/A constraintType = NAME_SAME_TYPE;
0N/A }
0N/A }
0N/A } else {
0N/A constraintType = NAME_SAME_TYPE;
0N/A }
0N/A }
0N/A return constraintType;
0N/A }
0N/A
0N/A /**
0N/A * Return subtree depth of this name for purposes of determining
0N/A * NameConstraints minimum and maximum bounds.
0N/A *
0N/A * @returns distance of name from root
0N/A * @throws UnsupportedOperationException if not supported for this name type
0N/A */
0N/A public int subtreeDepth() throws UnsupportedOperationException {
0N/A String subtree=name;
0N/A int i=1;
0N/A
0N/A /* strip off name@ portion */
0N/A int atNdx = subtree.lastIndexOf('@');
0N/A if (atNdx >= 0) {
0N/A i++;
0N/A subtree=subtree.substring(atNdx+1);
0N/A }
0N/A
0N/A /* count dots in dnsname, adding one if dnsname preceded by @ */
0N/A for (; subtree.lastIndexOf('.') >= 0; i++) {
0N/A subtree=subtree.substring(0,subtree.lastIndexOf('.'));
0N/A }
0N/A
0N/A return i;
0N/A }
0N/A}