xsec/utils/unixutils/XSECBinHTTPURIInputStream.hpp

/**
 * 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.
 */

/*
 * XSEC
 *
 * XSECBinHTTPURIInputStream := Re-implementation of Xerces BinHTTPInputStream
 *                              Allows us to modify and create an input
 *                              stream that follows re-directs which is
 *                              necessary to fully support XML-DSIG interop
 *                              tests
 *
 * Author(s): Berin Lautenbach
 *
 * $Id$
 *
 * $Log$
 * Revision 1.5  2005/02/03 13:55:08  milan
 * Apache licence fix.
 *
 * Revision 1.4  2004/02/08 10:50:22  blautenb
 * Update to Apache 2.0 license
 *
 * Revision 1.3  2003/09/11 11:29:12  blautenb
 * Fix Xerces namespace usage in *NIX build
 *
 * Revision 1.2  2003/07/05 10:30:38  blautenb
 * Copyright update
 *
 * Revision 1.1  2003/02/12 11:21:03  blautenb
 * UNIX generic URI resolver
 *
 *
 */

#ifndef UNIXXSECBINHTTPURIINPUTSTREAM_HEADER
#define UNIXXSECBINHTTPURIINPUTSTREAM_HEADER

#include <xsec/framework/XSECDefs.hpp>

#include <xercesc/util/XMLUri.hpp>
#include <xercesc/util/XMLExceptMsgs.hpp>
#include <xercesc/util/BinInputStream.hpp>

//
// This class implements the BinInputStream interface specified by the XML
// parser.
//

class XSEC_EXPORT XSECBinHTTPURIInputStream : public XERCES_CPP_NAMESPACE_QUALIFIER BinInputStream
{
public :
    XSECBinHTTPURIInputStream(const XERCES_CPP_NAMESPACE_QUALIFIER XMLUri&  urlSource);
    ~XSECBinHTTPURIInputStream();

    XMLFilePos curPos() const;
    XMLSize_t readBytes
    (
                XMLByte* const  toFill
        , const XMLSize_t    maxToRead
    );

    const XMLCh* getContentType() const;

private :
    // -----------------------------------------------------------------------
    //  Private data members
    //
    //  fSocket
    //      The socket representing the connection to the remote file.
    //  fBytesProcessed
    //      Its a rolling count of the number of bytes processed off this
    //      input stream.
    //  fBuffer
    //      Holds the http header, plus the first part of the actual
    //      data.  Filled at the time the stream is opened, data goes
    //      out to user in response to readBytes().
    //  fBufferPos, fBufferEnd
    //      Pointers into fBuffer, showing start and end+1 of content
    //      that readBytes must return.
    // -----------------------------------------------------------------------

	int getSocketHandle(const XERCES_CPP_NAMESPACE_QUALIFIER XMLUri&  urlSource);

    int                 fSocket;
    XMLSize_t          fBytesProcessed;
    char                fBuffer[4000];
    char *              fBufferEnd;
    char *              fBufferPos;

};


inline XMLFilePos XSECBinHTTPURIInputStream::curPos() const
{
    return fBytesProcessed;
}


#endif // UNIXXSECBINHTTPURIINPUTSTREAM_HEADER