| /* |
| * 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 Vladimir N. Molotkov, Stepan M. Mishura |
| * @version $Revision$ |
| */ |
| |
| package org.apache.harmony.security.asn1; |
| |
| import java.io.IOException; |
| import java.nio.charset.Charsets; |
| |
| /** |
| * This class is the super class for all string ASN.1 types |
| * |
| * @see <a href="http://asn1.elibel.tm.fr/en/standards/index.htm">ASN.1</a> |
| */ |
| public abstract class ASN1StringType extends ASN1Type { |
| |
| private static class ASN1StringUTF8Type extends ASN1StringType { |
| public ASN1StringUTF8Type(int tagNumber) { |
| super(tagNumber); |
| } |
| |
| @Override |
| public Object getDecodedObject(BerInputStream in) throws IOException { |
| return new String(in.buffer, in.contentOffset, in.length, Charsets.UTF_8); |
| } |
| |
| @Override |
| public void setEncodingContent(BerOutputStream out) { |
| byte[] bytes = ((String) out.content).getBytes(Charsets.UTF_8); |
| out.content = bytes; |
| out.length = bytes.length; |
| } |
| } |
| |
| // TODO: what about defining them as separate classes? |
| // TODO: check decoded/encoded characters |
| public static final ASN1StringType BMPSTRING = new ASN1StringType(TAG_BMPSTRING) {}; |
| |
| public static final ASN1StringType IA5STRING = new ASN1StringType(TAG_IA5STRING) {}; |
| |
| public static final ASN1StringType GENERALSTRING = new ASN1StringType(TAG_GENERALSTRING) {}; |
| |
| public static final ASN1StringType PRINTABLESTRING = new ASN1StringType(TAG_PRINTABLESTRING) {}; |
| |
| public static final ASN1StringType TELETEXSTRING = new ASN1StringUTF8Type(TAG_TELETEXSTRING) {}; |
| |
| public static final ASN1StringType UNIVERSALSTRING = new ASN1StringType(TAG_UNIVERSALSTRING) {}; |
| |
| public static final ASN1StringType UTF8STRING = new ASN1StringUTF8Type(TAG_UTF8STRING) {}; |
| |
| public ASN1StringType(int tagNumber) { |
| super(tagNumber); |
| } |
| |
| /** |
| * Tests provided identifier. |
| * |
| * @param identifier identifier to be verified |
| * @return true if identifier correspond to primitive or constructed |
| * identifier of this ASN.1 string type, otherwise false |
| */ |
| public final boolean checkTag(int identifier) { |
| return this.id == identifier || this.constrId == identifier; |
| } |
| |
| public Object decode(BerInputStream in) throws IOException { |
| in.readString(this); |
| |
| if (in.isVerify) { |
| return null; |
| } |
| return getDecodedObject(in); |
| } |
| |
| /** |
| * Extracts String object from BER input stream. |
| */ |
| public Object getDecodedObject(BerInputStream in) throws IOException { |
| /* To ensure we get the correct encoding on non-ASCII platforms, specify |
| that we wish to convert from ASCII to the default platform encoding */ |
| return new String(in.buffer, in.contentOffset, in.length, Charsets.ISO_8859_1); |
| } |
| |
| public void encodeASN(BerOutputStream out) { |
| out.encodeTag(id); |
| encodeContent(out); |
| } |
| |
| public void encodeContent(BerOutputStream out) { |
| out.encodeString(); |
| } |
| |
| public void setEncodingContent(BerOutputStream out) { |
| byte[] bytes = ((String) out.content).getBytes(Charsets.UTF_8); |
| out.content = bytes; |
| out.length = bytes.length; |
| } |
| } |