Examples with DerParser io.churchkey.asn1.DerParser used on opensource projects

Example 26 with DerParser

use of io.churchkey.asn1.DerParser in project ldaptive by vt-middleware.

the class MessageFrameDecoder method readMessageLength.

/**
 * Inspects the supplied buffer for a {@link UniversalDERTag#SEQ} tag and confirms the buffer contains enough bytes
 * for the length specified for the tag.
 *
 * @param  buffer  to read
 *
 * @return  DER message length
 *
 * @throws  IllegalArgumentException  if the buffer doesn't contain a SEQ tag
 */
private int readMessageLength(final DERBuffer buffer) {
    final DERParser messageParser = new DERParser();
    final int tag = messageParser.readTag(buffer).getTagNo();
    if (UniversalDERTag.SEQ.getTagNo() != tag) {
        throw new IllegalArgumentException("Invalid message tag: " + tag);
    }
    try {
        final int len = messageParser.readLength(buffer);
        if (buffer.position() + len <= buffer.capacity()) {
            logger.trace("read entire message of length {} with buffer {}", len, buffer);
            return buffer.position() + len;
        }
        logger.trace("could not read entire message of length {} with buffer {}", len, buffer);
    } catch (IndexOutOfBoundsException e) {
        // it's possible to receive a multi-byte length without all the bytes
        // don't log that outcome as a warning
        logger.trace("error reading message length with buffer {}", buffer, e);
    } catch (Exception e) {
        logger.warn("Error reading message length with buffer {}", buffer, e);
    }
    return -1;
}

Example 27 with DerParser

use of io.churchkey.asn1.DerParser in project ldaptive by vt-middleware.

the class VirtualListViewResponseControl method decode.

@Override
public void decode(final DERBuffer encoded) {
    final DERParser parser = new DERParser();
    parser.registerHandler(TargetPositionHandler.PATH, new TargetPositionHandler(this));
    parser.registerHandler(ContentCountHandler.PATH, new ContentCountHandler(this));
    parser.registerHandler(ViewResultHandler.PATH, new ViewResultHandler(this));
    parser.registerHandler(ContextIDHandler.PATH, new ContextIDHandler(this));
    parser.parse(encoded);
}

Example 28 with DerParser

use of io.churchkey.asn1.DerParser in project ldaptive by vt-middleware.

the class PagedResultsControl method decode.

@Override
public void decode(final DERBuffer encoded) {
    final DERParser parser = new DERParser();
    parser.registerHandler(SizeHandler.PATH, new SizeHandler(this));
    parser.registerHandler(CookieHandler.PATH, new CookieHandler(this));
    parser.parse(encoded);
}

Example 29 with DerParser

use of io.churchkey.asn1.DerParser in project ldaptive by vt-middleware.

the class PasswordPolicyControl method decode.

@Override
public void decode(final DERBuffer encoded) {
    final DERParser parser = new DERParser();
    parser.registerHandler(TimeBeforeExpirationHandler.PATH, new TimeBeforeExpirationHandler(this));
    parser.registerHandler(GraceAuthnsRemainingHandler.PATH, new GraceAuthnsRemainingHandler(this));
    parser.registerHandler(ErrorHandler.PATH, new ErrorHandler(this));
    parser.parse(encoded);
}