| /* |
| * 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 Boris Kuznetsov |
| * @version $Revision$ |
| */ |
| package org.apache.harmony.security.pkcs7; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import org.apache.harmony.security.asn1.ASN1Any; |
| import org.apache.harmony.security.asn1.ASN1Explicit; |
| import org.apache.harmony.security.asn1.ASN1OctetString; |
| import org.apache.harmony.security.asn1.ASN1Oid; |
| import org.apache.harmony.security.asn1.ASN1Sequence; |
| import org.apache.harmony.security.asn1.ASN1Type; |
| import org.apache.harmony.security.asn1.BerInputStream; |
| |
| /** |
| * As defined in PKCS #7: Cryptographic Message Syntax Standard |
| * (http://www.ietf.org/rfc/rfc2315.txt) |
| * |
| * ContentInfo ::= SEQUENCE { |
| * contentType ContentType, |
| * content [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL |
| * } |
| */ |
| public final class ContentInfo { |
| |
| // OIDs |
| public static final int[] DATA = new int[] {1, 2, 840, 113549, 1, 7, 1}; |
| public static final int[] SIGNED_DATA = new int[] {1, 2, 840, 113549, 1, 7, 2}; |
| public static final int[] ENVELOPED_DATA = new int[] {1, 2, 840, 113549, 1, 7, 3}; |
| public static final int[] SIGNED_AND_ENVELOPED_DATA = new int[] {1, 2, 840, 113549, 1, 7, 4}; |
| public static final int[] DIGESTED_DATA = new int[] {1, 2, 840, 113549, 1, 7, 5}; |
| public static final int[] ENCRYPTED_DATA = new int[] {1, 2, 840, 113549, 1, 7, 6}; |
| |
| private final int[] oid; |
| private final Object content; |
| private byte[] encoding; |
| |
| private ContentInfo(int[] oid, Object content, byte[] encoding) { |
| this.oid = oid; |
| this.content = content; |
| this.encoding = encoding; |
| } |
| |
| public SignedData getSignedData() { |
| if (Arrays.equals(oid, SIGNED_DATA)) { |
| return (SignedData)content; |
| } |
| return null; |
| } |
| |
| public Object getContent() { |
| return content; |
| } |
| |
| public int[] getContentType() { |
| return oid; |
| } |
| |
| public byte[] getEncoded() { |
| if (encoding == null) { |
| encoding = ASN1.encode(this); |
| } |
| // Note: this is internal object and can not be accessible from |
| // public API, so encoding is not copied. The classes which use |
| // this class should copy encoding before passing it out. |
| return encoding; |
| } |
| |
| @Override public String toString() { |
| StringBuilder res = new StringBuilder(); |
| res.append("==== ContentInfo:"); |
| res.append("\n== ContentType (OID): "); |
| for (int i : oid) { |
| res.append(i); |
| res.append(' '); |
| } |
| res.append("\n== Content: "); |
| if (content != null) { |
| res.append("\n"); |
| res.append(content.toString()); |
| } |
| res.append("\n== Content End"); |
| res.append("\n==== ContentInfo End\n"); |
| return res.toString(); |
| } |
| |
| public static final ASN1Sequence ASN1 = |
| new ASN1Sequence(new ASN1Type[] { |
| ASN1Oid.getInstance(), |
| new ASN1Explicit(0, ASN1Any.getInstance()) |
| }) { |
| { |
| setOptional(1); // content is optional |
| } |
| |
| @Override protected void getValues(Object object, Object[] values) { |
| ContentInfo ci = (ContentInfo) object; |
| values[0] = ci.oid; |
| if (ci.content != null) { |
| if (Arrays.equals(ci.oid, DATA)) { |
| if (ci.content != null) { |
| values[1] = |
| ASN1OctetString.getInstance().encode(ci.content); |
| } |
| } else if (ci.content instanceof SignedData) { |
| values[1] = SignedData.ASN1.encode(ci.content); |
| } else { |
| values[1] = ci.content; |
| } |
| } |
| } |
| |
| @Override protected Object getDecodedObject(BerInputStream in) throws IOException { |
| Object[] values = (Object[]) in.content; |
| int[] oid = (int[]) values[0]; |
| if (Arrays.equals(oid, DATA)) { |
| if (values[1] != null) { |
| return new ContentInfo(oid, |
| ASN1OctetString.getInstance().decode((byte[])values[1]), |
| in.getEncoded()); |
| } else { |
| return new ContentInfo((int[])values[0], null, |
| in.getEncoded()); |
| } |
| } |
| if (Arrays.equals(oid, SIGNED_DATA)) { |
| return new ContentInfo((int[])values[0], |
| SignedData.ASN1.decode((byte[])values[1]), |
| in.getEncoded()); |
| } |
| return new ContentInfo((int[]) values[0], values[1], in.getEncoded()); |
| } |
| }; |
| } |