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