| package org.bouncycastle.asn1.cms; |
| |
| import org.bouncycastle.asn1.ASN1Encodable; |
| import org.bouncycastle.asn1.ASN1EncodableVector; |
| import org.bouncycastle.asn1.ASN1ObjectIdentifier; |
| import org.bouncycastle.asn1.ASN1Sequence; |
| import org.bouncycastle.asn1.ASN1TaggedObject; |
| import org.bouncycastle.asn1.BERSequence; |
| import org.bouncycastle.asn1.BERTaggedObject; |
| import org.bouncycastle.asn1.DEREncodable; |
| import org.bouncycastle.asn1.DERObject; |
| |
| public class ContentInfo |
| extends ASN1Encodable |
| // BEGIN android-removed |
| // implements CMSObjectIdentifiers |
| // END android-removed |
| { |
| private ASN1ObjectIdentifier contentType; |
| private DEREncodable content; |
| |
| public static ContentInfo getInstance( |
| Object obj) |
| { |
| if (obj == null || obj instanceof ContentInfo) |
| { |
| return (ContentInfo)obj; |
| } |
| else if (obj instanceof ASN1Sequence) |
| { |
| return new ContentInfo((ASN1Sequence)obj); |
| } |
| |
| throw new IllegalArgumentException("unknown object in factory: " + obj.getClass().getName()); |
| } |
| |
| public ContentInfo( |
| ASN1Sequence seq) |
| { |
| if (seq.size() < 1 || seq.size() > 2) |
| { |
| throw new IllegalArgumentException("Bad sequence size: " + seq.size()); |
| } |
| |
| contentType = (ASN1ObjectIdentifier)seq.getObjectAt(0); |
| |
| if (seq.size() > 1) |
| { |
| ASN1TaggedObject tagged = (ASN1TaggedObject)seq.getObjectAt(1); |
| if (!tagged.isExplicit() || tagged.getTagNo() != 0) |
| { |
| throw new IllegalArgumentException("Bad tag for 'content'"); |
| } |
| |
| content = tagged.getObject(); |
| } |
| } |
| |
| public ContentInfo( |
| ASN1ObjectIdentifier contentType, |
| DEREncodable content) |
| { |
| this.contentType = contentType; |
| this.content = content; |
| } |
| |
| public ASN1ObjectIdentifier getContentType() |
| { |
| return contentType; |
| } |
| |
| public DEREncodable getContent() |
| { |
| return content; |
| } |
| |
| /** |
| * Produce an object suitable for an ASN1OutputStream. |
| * <pre> |
| * ContentInfo ::= SEQUENCE { |
| * contentType ContentType, |
| * content |
| * [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL } |
| * </pre> |
| */ |
| public DERObject toASN1Object() |
| { |
| ASN1EncodableVector v = new ASN1EncodableVector(); |
| |
| v.add(contentType); |
| |
| if (content != null) |
| { |
| v.add(new BERTaggedObject(0, content)); |
| } |
| |
| return new BERSequence(v); |
| } |
| } |