Main Page | Modules | Class Hierarchy | Compound List | File List | Compound Members | File Members | Related Pages

XSECBinHTTPURIInputStream.hpp

Go to the documentation of this file.
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
00029  *    software without prior written permission. For written 
00030  *    permission, please contact apache@apache.org.
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.
00035  *
00036  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
00037  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00038  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00039  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
00040  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00041  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00042  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
00043  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00044  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00045  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
00046  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00047  * SUCH DAMAGE.
00048  * ====================================================================
00049  *
00050  * This software consists of voluntary contributions made by many
00051  * individuals on behalf of the Apache Software Foundation and was
00052  * originally based on software copyright (c) 2001, Institute for
00053  * Data Communications Systems, <http://www.nue.et-inf.uni-siegen.de/>.
00054  * The development of this software was partly funded by the European 
00055  * Commission in the <WebSig> project in the ISIS Programme. 
00056  * For more information on the Apache Software Foundation, please see
00057  * <http://www.apache.org/>.
00058  */
00059 
00060 /*
00061  * XSEC
00062  *
00063  * XSECBinHTTPURIInputStream := Re-implementation of the Xerces
00064  *                              BinHTTPURLInputStream.  Allows us to make
00065  *                              some small changes to support the requirements
00066  *                              of XMLDSIG (notably re-directs)
00067  *
00068  * NOTE: Much code taken from Xerces, and the cross platform interfacing is
00069  * no-where near as nice.
00070  *
00071  * Author(s): Berin Lautenbach
00072  *
00073  * $Id: XSECBinHTTPURIInputStream.hpp,v 1.2 2003/07/05 10:30:38 blautenb Exp $
00074  *
00075  * $Log: XSECBinHTTPURIInputStream.hpp,v $
00076  * Revision 1.2  2003/07/05 10:30:38  blautenb
00077  * Copyright update
00078  *
00079  * Revision 1.1  2003/02/12 09:45:29  blautenb
00080  * Win32 Re-implementation of Xerces URIResolver to support re-directs
00081  *
00082  *
00083  */
00084 
00085 
00086 #ifndef XSECBINHTTPURIINPUTSTREAM_HEADER
00087 #define XSECBINHTTPURIINPUTSTREAM_HEADER
00088 
00089 #include <xsec/framework/XSECDefs.hpp>
00090 
00091 #include <xercesc/util/XMLUri.hpp>
00092 #include <xercesc/util/XMLExceptMsgs.hpp>
00093 #include <xercesc/util/BinInputStream.hpp>
00094 #include <xercesc/util/Mutexes.hpp>
00095 
00096 XSEC_USING_XERCES(BinInputStream);
00097 XSEC_USING_XERCES(XMLUri);
00098 XSEC_USING_XERCES(XMLMutex);
00099 
00100 //
00101 // This class implements the BinInputStream interface specified by the XML
00102 // parser.
00103 //
00104 
00105 struct hostent;
00106 struct sockaddr;
00107 
00108 
00109 class DSIG_EXPORT XSECBinHTTPURIInputStream : public BinInputStream
00110 {
00111 public :
00112 
00113     XSECBinHTTPURIInputStream(const XMLUri&  urlSource);
00114     ~XSECBinHTTPURIInputStream();
00115 
00116     unsigned int curPos() const;
00117     unsigned int readBytes(XMLByte* const  toFill, const unsigned int    maxToRead);
00118 
00119     static void Cleanup();
00120 
00121 
00122 private :
00123     // -----------------------------------------------------------------------
00124     //  Private data members
00125     //
00126     //  fSocketHandle
00127     //      The socket representing the connection to the remote file.
00128     //      We deliberately did not define the type to be SOCKET, so as to
00129     //      avoid bringing in any Windows header into this file.
00130     //  fBytesProcessed
00131     //      Its a rolling count of the number of bytes processed off this
00132     //      input stream.
00133     //  fBuffer
00134     //      Holds the http header, plus the first part of the actual
00135     //      data.  Filled at the time the stream is opened, data goes
00136     //      out to user in response to readBytes().
00137     //  fBufferPos, fBufferEnd
00138     //      Pointers into fBuffer, showing start and end+1 of content
00139     //      that readBytes must return.
00140     // -----------------------------------------------------------------------
00141 
00142     unsigned int        fSocketHandle;
00143     unsigned int        fBytesProcessed;
00144     char                fBuffer[4000];
00145     char *              fBufferEnd;
00146     char *              fBufferPos;
00147     static bool         fInitialized;
00148     static XMLMutex*    fInitMutex;
00149 
00150     static void Initialize();
00151     unsigned int getSocketHandle(const XMLUri&  urlSource);
00152 
00153     inline static hostent* gethostbyname(const char* name);
00154     inline static unsigned long inet_addr(const char* cp);
00155     inline static hostent* gethostbyaddr(const char* addr,int len,int type);
00156     inline static unsigned short htons(unsigned short hostshort);
00157     inline static unsigned short socket(int af,int type,int protocol);
00158     inline static int connect(unsigned short s,const sockaddr* name,int namelen);
00159     inline static int send(unsigned short s,const char* buf,int len,int flags);
00160     inline static int recv(unsigned short s,char* buf,int len,int flags);
00161     inline static int shutdown(unsigned int s,int how);
00162     inline static int closesocket(unsigned int socket);
00163 };
00164 
00165 
00166 inline unsigned int XSECBinHTTPURIInputStream::curPos() const
00167 {
00168     return fBytesProcessed;
00169 }
00170 
00171 
00172 #endif // XSECBINHTTPURIINPUTSTREAM_HEADER

Generated on Sun Aug 10 06:24:29 2003 for XML-Security-C by doxygen 1.3.2