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XSECBinHTTPURIInputStream.hpp

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00001 /*
00002  * The Apache Software License, Version 1.1
00003  *
00004  *
00005  * Copyright (c) 2002-2003 The Apache Software Foundation.  All rights 
00006  * reserved.
00007  *
00008  * Redistribution and use in source and binary forms, with or without
00009  * modification, are permitted provided that the following conditions
00010  * are met:
00011  *
00012  * 1. Redistributions of source code must retain the above copyright
00013  *    notice, this list of conditions and the following disclaimer. 
00014  *
00015  * 2. Redistributions in binary form must reproduce the above copyright
00016  *    notice, this list of conditions and the following disclaimer in
00017  *    the documentation and/or other materials provided with the
00018  *    distribution.
00019  *
00020  * 3. The end-user documentation included with the redistribution,
00021  *    if any, must include the following acknowledgment:  
00022  *       "This product includes software developed by the
00023  *        Apache Software Foundation (http://www.apache.org/)."
00024  *    Alternately, this acknowledgment may appear in the software itself,
00025  *    if and wherever such third-party acknowledgments normally appear.
00026  *
00027  * 4. The names "<WebSig>" and "Apache Software Foundation" must
00028  *    not be used to endorse or promote products derived from this
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00031  *
00032  * 5. Products derived from this software may not be called "Apache",
00033  *    nor may "Apache" appear in their name, without prior written
00034  *    permission of the Apache Software Foundation.
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00036  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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00048  * ====================================================================
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00050  * This software consists of voluntary contributions made by many
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00052  * originally based on software copyright (c) 2001, Institute for
00053  * Data Communications Systems, <http://www.nue.et-inf.uni-siegen.de/>.
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00058  */
00059 
00060 /*
00061  * XSEC
00062  *
00063  * XSECBinHTTPURIInputStream := Re-implementation of Xerces BinHTTPInputStream
00064  *                              Allows us to modify and create an input
00065  *                              stream that follows re-directs which is
00066  *                              necessary to fully support XML-DSIG interop
00067  *                              tests
00068  *
00069  * Author(s): Berin Lautenbach
00070  *
00071  * $Id: XSECBinHTTPURIInputStream.hpp,v 1.2 2003/07/05 10:30:38 blautenb Exp $
00072  *
00073  * $Log: XSECBinHTTPURIInputStream.hpp,v $
00074  * Revision 1.2  2003/07/05 10:30:38  blautenb
00075  * Copyright update
00076  *
00077  * Revision 1.1  2003/02/12 11:21:03  blautenb
00078  * UNIX generic URI resolver
00079  *
00080  *
00081  */
00082 
00083 #ifndef UNIXXSECBINHTTPURIINPUTSTREAM_HEADER
00084 #define UNIXXSECBINHTTPURIINPUTSTREAM_HEADER
00085 
00086 #include <xsec/framework/XSECDefs.hpp>
00087 
00088 #include <xercesc/util/XMLUri.hpp>
00089 #include <xercesc/util/XMLExceptMsgs.hpp>
00090 #include <xercesc/util/BinInputStream.hpp>
00091 
00092 XSEC_USING_XERCES(XMLUri);
00093 XSEC_USING_XERCES(BinInputStream);
00094 
00095 
00096 //
00097 // This class implements the BinInputStream interface specified by the XML
00098 // parser.
00099 //
00100 
00101 class DSIG_EXPORT XSECBinHTTPURIInputStream : public BinInputStream
00102 {
00103 public :
00104     XSECBinHTTPURIInputStream(const XMLUri&  urlSource);
00105     ~XSECBinHTTPURIInputStream();
00106 
00107     unsigned int curPos() const;
00108     unsigned int readBytes
00109     (
00110                 XMLByte* const  toFill
00111         , const unsigned int    maxToRead
00112     );
00113 
00114 
00115 private :
00116     // -----------------------------------------------------------------------
00117     //  Private data members
00118     //
00119     //  fSocket
00120     //      The socket representing the connection to the remote file.
00121     //  fBytesProcessed
00122     //      Its a rolling count of the number of bytes processed off this
00123     //      input stream.
00124     //  fBuffer
00125     //      Holds the http header, plus the first part of the actual
00126     //      data.  Filled at the time the stream is opened, data goes
00127     //      out to user in response to readBytes().
00128     //  fBufferPos, fBufferEnd
00129     //      Pointers into fBuffer, showing start and end+1 of content
00130     //      that readBytes must return.
00131     // -----------------------------------------------------------------------
00132 
00133     int getSocketHandle(const XMLUri&  urlSource);
00134 
00135     int                 fSocket;
00136     unsigned int        fBytesProcessed;
00137     char                fBuffer[4000];
00138     char *              fBufferEnd;
00139     char *              fBufferPos;
00140 
00141 };
00142 
00143 
00144 inline unsigned int XSECBinHTTPURIInputStream::curPos() const
00145 {
00146     return fBytesProcessed;
00147 }
00148 
00149 
00150 #endif // UNIXXSECBINHTTPURIINPUTSTREAM_HEADER

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