source: NonGTP/Xerces/xercesc/util/NetAccessors/WinSock/BinHTTPURLInputStream.hpp @ 188

Revision 188, 7.5 KB checked in by mattausch, 19 years ago (diff)

added xercesc to support

Line 
1/*
2 * The Apache Software License, Version 1.1
3 *
4 * Copyright (c) 1999-2000 The Apache Software Foundation.  All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in
16 *    the documentation and/or other materials provided with the
17 *    distribution.
18 *
19 * 3. The end-user documentation included with the redistribution,
20 *    if any, must include the following acknowledgment:
21 *       "This product includes software developed by the
22 *        Apache Software Foundation (http://www.apache.org/)."
23 *    Alternately, this acknowledgment may appear in the software itself,
24 *    if and wherever such third-party acknowledgments normally appear.
25 *
26 * 4. The names "Xerces" and "Apache Software Foundation" must
27 *    not be used to endorse or promote products derived from this
28 *    software without prior written permission. For written
29 *    permission, please contact apache\@apache.org.
30 *
31 * 5. Products derived from this software may not be called "Apache",
32 *    nor may "Apache" appear in their name, without prior written
33 *    permission of the Apache Software Foundation.
34 *
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * SUCH DAMAGE.
47 * ====================================================================
48 *
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation, and was
51 * originally based on software copyright (c) 1999, International
52 * Business Machines, Inc., http://www.ibm.com .  For more information
53 * on the Apache Software Foundation, please see
54 * <http://www.apache.org/>.
55 */
56
57/*
58 * $Log: BinHTTPURLInputStream.hpp,v $
59 * Revision 1.4  2004/01/29 11:51:20  cargilld
60 * Code cleanup changes to get rid of various compiler diagnostic messages.
61 *
62 * Revision 1.3  2003/12/17 00:18:37  cargilld
63 * Update to memory management so that the static memory manager (one used to call Initialize) is only for static data.
64 *
65 * Revision 1.2  2002/11/04 15:11:39  tng
66 * C++ Namespace Support.
67 *
68 * Revision 1.1.1.1  2002/02/01 22:22:23  peiyongz
69 * sane_include
70 *
71 * Revision 1.5  2001/10/25 16:26:39  tng
72 * [Bug 4213] BinHTTPURLInputStream initialisation not thread safe.  By Mark Weaver.
73 *
74 * Revision 1.4  2001/01/22 16:43:39  tng
75 * Loads winsock dynamically.  Fixed by Curt Arnold.
76 * Winsock2 is not initialized unless an http URL is used.    If an http
77 * URL is used and the Winsock 2 DLL is not installed, then an NetAccessor
78 * initialization exception is thrown.
79 *
80 * Revision 1.3  2000/07/21 03:22:45  andyh
81 * Improved (but still weak) http access by the parser.
82 * Windows only.  UNIX will follow, probably tomorrow.
83 *
84 * Revision 1.2  2000/03/22 00:21:10  rahulj
85 * Now we throw exceptions when errors occur.
86 * Simplified the code, based on the assumption that
87 * the calling function will make sure that the buffer into
88 * which the data has to be read is large enough.
89 *
90 * Revision 1.1  2000/03/17 02:37:54  rahulj
91 * First cut at adding HTTP capability via native sockets.
92 * Still need to add:
93 *   error handling capability, ports other than 80,
94 *   escaped URL's
95 * Will add options in project file only when I am done with these
96 * above changes.
97 *
98 */
99
100#if !defined(BINHTTPURLINPUTSTREAM_HPP)
101#define BINHTTPURLINPUTSTREAM_HPP
102
103
104#include <xercesc/util/XMLURL.hpp>
105#include <xercesc/util/XMLExceptMsgs.hpp>
106#include <xercesc/util/BinInputStream.hpp>
107#include <xercesc/util/Mutexes.hpp>
108
109
110//
111// This class implements the BinInputStream interface specified by the XML
112// parser.
113//
114struct hostent;
115struct sockaddr;
116
117XERCES_CPP_NAMESPACE_BEGIN
118
119class XMLUTIL_EXPORT BinHTTPURLInputStream : public BinInputStream
120{
121public :
122    BinHTTPURLInputStream(const XMLURL&  urlSource);
123    ~BinHTTPURLInputStream();
124
125    unsigned int curPos() const;
126    unsigned int readBytes
127    (
128                XMLByte* const  toFill
129        , const unsigned int    maxToRead
130    );
131
132        static void Cleanup();
133
134
135private :
136    // -----------------------------------------------------------------------
137    //  Unimplemented constructors and operators
138    // -----------------------------------------------------------------------
139    BinHTTPURLInputStream(const BinHTTPURLInputStream&);
140    BinHTTPURLInputStream& operator=(const BinHTTPURLInputStream&);
141    // -----------------------------------------------------------------------
142    //  Private data members
143    //
144    //  fSocketHandle
145    //      The socket representing the connection to the remote file.
146    //      We deliberately did not define the type to be SOCKET, so as to
147    //      avoid bringing in any Windows header into this file.
148    //  fBytesProcessed
149    //      Its a rolling count of the number of bytes processed off this
150    //      input stream.
151    //  fBuffer
152    //      Holds the http header, plus the first part of the actual
153    //      data.  Filled at the time the stream is opened, data goes
154    //      out to user in response to readBytes().
155    //  fBufferPos, fBufferEnd
156    //      Pointers into fBuffer, showing start and end+1 of content
157    //      that readBytes must return.
158    // -----------------------------------------------------------------------
159    MemoryManager*      fMemoryManager;
160    unsigned int        fSocketHandle;
161    unsigned int        fBytesProcessed;
162    char                fBuffer[4000];
163    char *              fBufferEnd;
164    char *              fBufferPos;
165    static bool         fInitialized;
166    static XMLMutex*        fInitMutex;
167
168        static void Initialize(MemoryManager* const manager  = XMLPlatformUtils::fgMemoryManager);
169
170        inline static hostent* gethostbyname(const char* name);
171        inline static unsigned long inet_addr(const char* cp);
172        inline static hostent* gethostbyaddr(const char* addr,int len,int type);
173        inline static unsigned short htons(unsigned short hostshort);
174        inline static unsigned short socket(int af,int type,int protocol);
175        inline static int connect(unsigned short s,const sockaddr* name,int namelen);
176        inline static int send(unsigned short s,const char* buf,int len,int flags);
177        inline static int recv(unsigned short s,char* buf,int len,int flags);
178        inline static int shutdown(unsigned int s,int how);
179        inline static int closesocket(unsigned int socket);
180};
181
182
183inline unsigned int BinHTTPURLInputStream::curPos() const
184{
185    return fBytesProcessed;
186}
187
188XERCES_CPP_NAMESPACE_END
189
190#endif // BINHTTPURLINPUTSTREAM_HPP
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