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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @author Alexander V. Esin, Stepan M. Mishura
* @version $Revision$
*/
package org.apache.harmony.security.x501;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Locale;
import javax.security.auth.x500.X500Principal;
import org.apache.harmony.security.asn1.ASN1Constants;
import org.apache.harmony.security.asn1.ASN1Oid;
import org.apache.harmony.security.asn1.ASN1Sequence;
import org.apache.harmony.security.asn1.ASN1StringType;
import org.apache.harmony.security.asn1.ASN1Type;
import org.apache.harmony.security.asn1.BerInputStream;
import org.apache.harmony.security.asn1.BerOutputStream;
import org.apache.harmony.security.utils.ObjectIdentifier;
/**
* X.501 AttributeTypeAndValue
*/
public final class AttributeTypeAndValue {
/** known attribute types for RFC1779 (see Table 1) */
private static final HashMap RFC1779_NAMES
= new HashMap(10);
/** known keywords attribute */
private static final HashMap KNOWN_NAMES
= new HashMap(30);
/** known attribute types for RFC2253 (see 2.3. Converting AttributeTypeAndValue) */
private static final HashMap RFC2253_NAMES
= new HashMap(10);
/** known attribute types for RFC2459 (see API spec.) */
private static final HashMap RFC2459_NAMES
= new HashMap(10);
/** Country code attribute (name from RFC 1779) */
private static final ObjectIdentifier C
= new ObjectIdentifier(new int[] { 2, 5, 4, 6 }, "C", RFC1779_NAMES);
/** Common name attribute (name from RFC 1779) */
private static final ObjectIdentifier CN
= new ObjectIdentifier(new int[] { 2, 5, 4, 3 }, "CN", RFC1779_NAMES);
/** Domain component attribute (name from RFC 2253) */
public static final ObjectIdentifier DC = new ObjectIdentifier(
new int[] { 0, 9, 2342, 19200300, 100, 1, 25 }, "DC", RFC2253_NAMES);
/** DN qualifier attribute (name from API spec) */
private static final ObjectIdentifier DNQ
= new ObjectIdentifier(new int[] { 2, 5, 4, 46 }, "DNQ", RFC2459_NAMES);
private static final ObjectIdentifier DNQUALIFIER
= new ObjectIdentifier(new int[] { 2, 5, 4, 46 }, "DNQUALIFIER", RFC2459_NAMES);
/** Email Address attribute (name from API spec) */
public static final ObjectIdentifier EMAILADDRESS = new ObjectIdentifier(
new int[] { 1, 2, 840, 113549, 1, 9, 1}, "EMAILADDRESS", RFC2459_NAMES);
/** Generation attribute (qualifies an individual's name) (name from API spec) */
private static final ObjectIdentifier GENERATION
= new ObjectIdentifier(new int[] { 2, 5, 4, 44 }, "GENERATION", RFC2459_NAMES);
/** Given name attribute (name from API spec) */
private static final ObjectIdentifier GIVENNAME
= new ObjectIdentifier(new int[] { 2, 5, 4, 42 }, "GIVENNAME", RFC2459_NAMES);
/** Initials attribute (initials of an individual's name) (name from API spec) */
private static final ObjectIdentifier INITIALS
= new ObjectIdentifier(new int[] { 2, 5, 4, 43 }, "INITIALS", RFC2459_NAMES);
/** Name of a locality attribute (name from RFC 1779) */
private static final ObjectIdentifier L
= new ObjectIdentifier(new int[] { 2, 5, 4, 7 }, "L", RFC1779_NAMES);
/** Organization name attribute (name from RFC 1779) */
private static final ObjectIdentifier O
= new ObjectIdentifier(new int[] { 2, 5, 4, 10 }, "O", RFC1779_NAMES);
/** Organizational unit name attribute (name from RFC 1779) */
private static final ObjectIdentifier OU
= new ObjectIdentifier(new int[] { 2, 5, 4, 11 }, "OU", RFC1779_NAMES);
/** Serial number attribute (serial number of a device) (name from API spec) */
private static final ObjectIdentifier SERIALNUMBER
= new ObjectIdentifier(new int[] { 2, 5, 4, 5 }, "SERIALNUMBER", RFC2459_NAMES);
/** Attribute for the full name of a state or province (name from RFC 1779) */
private static final ObjectIdentifier ST
= new ObjectIdentifier(new int[] { 2, 5, 4, 8 }, "ST", RFC1779_NAMES);
/** Street attribute (name from RFC 1779) */
private static final ObjectIdentifier STREET
= new ObjectIdentifier(new int[] { 2, 5, 4, 9 }, "STREET", RFC1779_NAMES);
/** Surname attribute (comes from an individual's parent name) (name from API spec) */
private static final ObjectIdentifier SURNAME
= new ObjectIdentifier(new int[] { 2, 5, 4, 4 }, "SURNAME", RFC2459_NAMES);
/** Title attribute (object in an organization)(name from API spec) */
private static final ObjectIdentifier T
= new ObjectIdentifier(new int[] { 2, 5, 4, 12 }, "T", RFC2459_NAMES);
/** User identifier attribute (name from RFC 2253) */
private static final ObjectIdentifier UID = new ObjectIdentifier(
new int[]{ 0, 9, 2342, 19200300, 100, 1, 1 }, "UID", RFC2253_NAMES);
/** pool's capacity */
private static final int CAPACITY = 10;
/** pool's size */
private static final int SIZE = 10;
/** pool: contains all recognizable attribute type keywords */
private static final ObjectIdentifier[][] KNOWN_OIDS = new ObjectIdentifier[SIZE][CAPACITY];
static {
RFC1779_NAMES.put(CN.getName(), CN);
RFC1779_NAMES.put(L.getName(), L);
RFC1779_NAMES.put(ST.getName(), ST);
RFC1779_NAMES.put(O.getName(), O);
RFC1779_NAMES.put(OU.getName(), OU);
RFC1779_NAMES.put(C.getName(), C);
RFC1779_NAMES.put(STREET.getName(), STREET);
RFC2253_NAMES.putAll(RFC1779_NAMES);
RFC2253_NAMES.put(DC.getName(), DC);
RFC2253_NAMES.put(UID.getName(), UID);
RFC2459_NAMES.put(DNQ.getName(), DNQ);
RFC2459_NAMES.put(DNQUALIFIER.getName(), DNQUALIFIER);
RFC2459_NAMES.put(EMAILADDRESS.getName(), EMAILADDRESS);
RFC2459_NAMES.put(GENERATION.getName(), GENERATION);
RFC2459_NAMES.put(GIVENNAME.getName(), GIVENNAME);
RFC2459_NAMES.put(INITIALS.getName(), INITIALS);
RFC2459_NAMES.put(SERIALNUMBER.getName(), SERIALNUMBER);
RFC2459_NAMES.put(SURNAME.getName(), SURNAME);
RFC2459_NAMES.put(T.getName(), T);
// add from RFC2253 (includes RFC1779)
for (ObjectIdentifier objectIdentifier : RFC2253_NAMES.values()) {
addOID(objectIdentifier);
}
// add attributes from RFC2459
for (ObjectIdentifier o : RFC2459_NAMES.values()) {
//don't add DNQUALIFIER because it has the same oid as DNQ
if (!(o == DNQUALIFIER)) {
addOID(o);
}
}
KNOWN_NAMES.putAll(RFC2253_NAMES); // RFC2253 includes RFC1779
KNOWN_NAMES.putAll(RFC2459_NAMES);
}
/**
* Parses OID string representation.
*
* @param sOid
* string representation of OID
*
* @throws IOException
* if OID can not be created from its string representation
*/
public static ObjectIdentifier getObjectIdentifier(String sOid) throws IOException {
if (sOid.charAt(0) >= '0' && sOid.charAt(0) <= '9') {
int[] array = org.apache.harmony.security.asn1.ObjectIdentifier.toIntArray(sOid);
ObjectIdentifier thisOid = getOID(array);
if (thisOid == null) {
thisOid = new ObjectIdentifier(array);
}
return thisOid;
}
ObjectIdentifier thisOid = KNOWN_NAMES.get(sOid.toUpperCase(Locale.US));
if (thisOid == null) {
throw new IOException("Unrecognizable attribute name: " + sOid);
}
return thisOid;
}
/** Attribute type */
private final ObjectIdentifier oid;
/** Attribute value */
private final AttributeValue value;
// for decoder only
private AttributeTypeAndValue(int[] oid, AttributeValue value) throws IOException {
ObjectIdentifier thisOid = getOID(oid);
if (thisOid == null) {
thisOid = new ObjectIdentifier(oid);
}
this.oid = thisOid;
this.value = value;
}
/**
* Creates AttributeTypeAndValue with OID and AttributeValue.
*
* @param oid
* object identifier
* @param value
* attribute value
*/
public AttributeTypeAndValue(ObjectIdentifier oid, AttributeValue value) throws IOException {
this.oid = oid;
this.value = value;
}
/**
* Appends AttributeTypeAndValue string representation
*
* @param attrFormat - format of DN
*/
public void appendName(String attrFormat, StringBuilder sb) {
boolean hexFormat = false;
if (X500Principal.RFC1779.equals(attrFormat)) {
if (RFC1779_NAMES == oid.getGroup()) {
sb.append(oid.getName());
} else {
sb.append(oid.toOIDString());
}
sb.append('=');
if (value.escapedString == value.getHexString()) {
sb.append(value.getHexString().toUpperCase(Locale.US));
} else if (value.escapedString.length() != value.rawString.length()) {
// was escaped
value.appendQEString(sb);
} else {
sb.append(value.escapedString);
}
} else {
Object group = oid.getGroup();
// RFC2253 includes names from RFC1779
if (RFC1779_NAMES == group || RFC2253_NAMES == group) {
sb.append(oid.getName());
if (X500Principal.CANONICAL.equals(attrFormat)) {
// only PrintableString and UTF8String in string format
// all others are output in hex format
// no hex for teletex; see http://b/2102191
int tag = value.getTag();
if (!ASN1StringType.UTF8STRING.checkTag(tag)
&& !ASN1StringType.PRINTABLESTRING.checkTag(tag)
&& !ASN1StringType.TELETEXSTRING.checkTag(tag)) {
hexFormat = true;
}
}
} else {
sb.append(oid.toString());
hexFormat = true;
}
sb.append('=');
if (hexFormat) {
sb.append(value.getHexString());
} else {
if (X500Principal.CANONICAL.equals(attrFormat)) {
sb.append(value.makeCanonical());
} else {
sb.append(value.escapedString);
}
}
}
}
/**
* Gets type of the AttributeTypeAndValue
*/
public ObjectIdentifier getType() {
return oid;
}
public AttributeValue getValue() {
return value;
}
/**
* According to RFC 3280 (http://www.ietf.org/rfc/rfc3280.txt)
* X.501 AttributeTypeAndValue structure is defined as follows:
*
* AttributeTypeAndValue ::= SEQUENCE {
* type AttributeType,
* value AttributeValue }
*
* AttributeType ::= OBJECT IDENTIFIER
*
* AttributeValue ::= ANY DEFINED BY AttributeType
* ...
* DirectoryString ::= CHOICE {
* teletexString TeletexString (SIZE (1..MAX)),
* printableString PrintableString (SIZE (1..MAX)),
* universalString UniversalString (SIZE (1..MAX)),
* utf8String UTF8String (SIZE (1.. MAX)),
* bmpString BMPString (SIZE (1..MAX)) }
*
*/
public static final ASN1Type attributeValue = new ASN1Type(ASN1Constants.TAG_PRINTABLESTRING) {
public boolean checkTag(int tag) {
return true;
}
public Object decode(BerInputStream in) throws IOException {
// FIXME what about constr???
String str = null;
if (DirectoryString.ASN1.checkTag(in.tag)) {
// has string representation
str = (String) DirectoryString.ASN1.decode(in);
} else {
// gets octets only
in.readContent();
}
byte[] bytesEncoded = new byte[in.getOffset() - in.getTagOffset()];
System.arraycopy(in.getBuffer(), in.getTagOffset(), bytesEncoded,
0, bytesEncoded.length);
return new AttributeValue(str, bytesEncoded, in.tag);
}
@Override public Object getDecodedObject(BerInputStream in) throws IOException {
// stub to avoid wrong decoder usage
throw new RuntimeException("AttributeValue getDecodedObject MUST NOT be invoked");
}
//
// Encode
//
public void encodeASN(BerOutputStream out) {
AttributeValue av = (AttributeValue) out.content;
if (av.encoded != null) {
out.content = av.encoded;
out.encodeANY();
} else {
out.encodeTag(av.getTag());
out.content = av.bytes;
out.encodeString();
}
}
public void setEncodingContent(BerOutputStream out) {
AttributeValue av = (AttributeValue) out.content;
if (av.encoded != null) {
out.length = av.encoded.length;
} else {
if (av.getTag() == ASN1Constants.TAG_UTF8STRING) {
out.content = av.rawString;
ASN1StringType.UTF8STRING.setEncodingContent(out);
av.bytes = (byte[]) out.content;
out.content = av;
} else {
av.bytes = av.rawString.getBytes(StandardCharsets.UTF_8);
out.length = av.bytes.length;
}
}
}
public void encodeContent(BerOutputStream out) {
// stub to avoid wrong encoder usage
throw new RuntimeException("AttributeValue encodeContent MUST NOT be invoked");
}
@Override public int getEncodedLength(BerOutputStream out) { //FIXME name
AttributeValue av = (AttributeValue) out.content;
if (av.encoded != null) {
return out.length;
} else {
return super.getEncodedLength(out);
}
}
};
public static final ASN1Sequence ASN1 = new ASN1Sequence(new ASN1Type[] {
ASN1Oid.getInstance(), attributeValue }) {
@Override protected Object getDecodedObject(BerInputStream in) throws IOException {
Object[] values = (Object[]) in.content;
return new AttributeTypeAndValue((int[]) values[0], (AttributeValue) values[1]);
}
@Override protected void getValues(Object object, Object[] values) {
AttributeTypeAndValue atav = (AttributeTypeAndValue) object;
values[0] = atav.oid.getOid();
values[1] = atav.value;
}
};
/**
* Returns known OID or null.
*/
private static ObjectIdentifier getOID(int[] oid) {
int index = hashIntArray(oid) % CAPACITY;
// look for OID in the pool
ObjectIdentifier[] list = KNOWN_OIDS[index];
for (int i = 0; list[i] != null; i++) {
if (Arrays.equals(oid, list[i].getOid())) {
return list[i];
}
}
return null;
}
/**
* Adds known OID to pool.
* for static AttributeTypeAndValue initialization only
*/
private static void addOID(ObjectIdentifier oid) {
int[] newOid = oid.getOid();
int index = hashIntArray(newOid) % CAPACITY;
// look for OID in the pool
ObjectIdentifier[] list = KNOWN_OIDS[index];
int i = 0;
for (; list[i] != null; i++) {
// check wrong static initialization: no duplicate OIDs
if (Arrays.equals(newOid, list[i].getOid())) {
throw new Error("ObjectIdentifier: invalid static initialization; " +
"duplicate OIDs: " + oid.getName() + " " + list[i].getName());
}
}
// check : to avoid NPE
if (i == (CAPACITY - 1)) {
throw new Error("ObjectIdentifier: invalid static initialization; " +
"small OID pool capacity");
}
list[i] = oid;
}
/**
* Returns hash for array of integers.
*/
private static int hashIntArray(int[] oid) {
int intHash = 0;
for (int i = 0; i < oid.length && i < 4; i++) {
intHash += oid[i] << (8 * i); //TODO what about to find better one?
}
return intHash & 0x7FFFFFFF; // only positive
}
}
