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XMLURL.hpp

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00001 /*
00002  * The Apache Software License, Version 1.1
00003  *
00004  * Copyright (c) 1999-2003 The Apache Software Foundation.  All rights
00005  * reserved.
00006  *
00007  * Redistribution and use in source and binary forms, with or without
00008  * modification, are permitted provided that the following conditions
00009  * are met:
00010  *
00011  * 1. Redistributions of source code must retain the above copyright
00012  *    notice, this list of conditions and the following disclaimer.
00013  *
00014  * 2. Redistributions in binary form must reproduce the above copyright
00015  *    notice, this list of conditions and the following disclaimer in
00016  *    the documentation and/or other materials provided with the
00017  *    distribution.
00018  *
00019  * 3. The end-user documentation included with the redistribution,
00020  *    if any, must include the following acknowledgment:
00021  *       "This product includes software developed by the
00022  *        Apache Software Foundation (http://www.apache.org/)."
00023  *    Alternately, this acknowledgment may appear in the software itself,
00024  *    if and wherever such third-party acknowledgments normally appear.
00025  *
00026  * 4. The names "Xerces" and "Apache Software Foundation" must
00027  *    not be used to endorse or promote products derived from this
00028  *    software without prior written permission. For written
00029  *    permission, please contact apache\@apache.org.
00030  *
00031  * 5. Products derived from this software may not be called "Apache",
00032  *    nor may "Apache" appear in their name, without prior written
00033  *    permission of the Apache Software Foundation.
00034  *
00035  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
00036  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00037  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00038  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
00039  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00040  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00041  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
00042  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00043  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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00045  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00046  * SUCH DAMAGE.
00047  * ====================================================================
00048  *
00049  * This software consists of voluntary contributions made by many
00050  * individuals on behalf of the Apache Software Foundation, and was
00051  * originally based on software copyright (c) 1999, International
00052  * Business Machines, Inc., http://www.ibm.com .  For more information
00053  * on the Apache Software Foundation, please see
00054  * <http://www.apache.org/>.
00055  */
00056 
00057 /*
00058  * $Id: XMLURL.hpp,v 1.11 2003/08/26 21:05:32 neilg Exp $
00059  */
00060 
00061 #if !defined(XMLURL_HPP)
00062 #define XMLURL_HPP
00063 
00064 #include <xercesc/util/PlatformUtils.hpp>
00065 
00066 XERCES_CPP_NAMESPACE_BEGIN
00067 
00068 class BinInputStream;
00069 
00070 //
00071 //  This class supports file, http, and ftp style URLs. All others are
00072 //  rejected
00073 //
00074 class  XMLURL : public XMemory
00075 {
00076 public:
00077     // -----------------------------------------------------------------------
00078     //  Class types
00079     //
00080     //  And they must remain in this order because they are indexes into an
00081     //  array internally!
00082     // -----------------------------------------------------------------------
00083     enum Protocols
00084     {
00085         File
00086         , HTTP
00087         , FTP
00088 
00089         , Protocols_Count
00090         , Unknown
00091     };
00092 
00093 
00094     // -----------------------------------------------------------------------
00095     //  Public static methods
00096     // -----------------------------------------------------------------------
00097     static Protocols lookupByName(const XMLCh* const protoName);
00098     static bool parse(const XMLCh* const urlText, XMLURL& xmlURL);
00099 
00100     // -----------------------------------------------------------------------
00101     //  Constructors and Destructor
00102     // -----------------------------------------------------------------------
00103     XMLURL(MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
00104     XMLURL
00105     (
00106         const   XMLCh* const    baseURL
00107         , const XMLCh* const    relativeURL
00108         , MemoryManager* const manager  = XMLPlatformUtils::fgMemoryManager
00109     );
00110     XMLURL
00111     (
00112         const   XMLCh* const    baseURL
00113         , const char* const     relativeURL
00114         , MemoryManager* const manager  = XMLPlatformUtils::fgMemoryManager
00115     );
00116     XMLURL
00117     (
00118         const   XMLURL&         baseURL
00119         , const XMLCh* const    relativeURL
00120     );
00121     XMLURL
00122     (
00123         const   XMLURL&         baseURL
00124         , const char* const     relativeURL
00125     );
00126     XMLURL
00127     (
00128         const   XMLCh* const    urlText
00129         , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
00130     );
00131     XMLURL
00132     (
00133         const   char* const     urlText
00134         , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
00135     );
00136     XMLURL(const XMLURL& toCopy);
00137     virtual ~XMLURL();
00138 
00139 
00140     // -----------------------------------------------------------------------
00141     //  Operators
00142     // -----------------------------------------------------------------------
00143     XMLURL& operator=(const XMLURL& toAssign);
00144     bool operator==(const XMLURL& toCompare) const;
00145     bool operator!=(const XMLURL& toCompare) const;
00146 
00147 
00148     // -----------------------------------------------------------------------
00149     //  Getter methods
00150     // -----------------------------------------------------------------------
00151     const XMLCh* getFragment() const;
00152     const XMLCh* getHost() const;
00153     const XMLCh* getPassword() const;
00154     const XMLCh* getPath() const;
00155     unsigned int getPortNum() const;
00156     Protocols getProtocol() const;
00157     const XMLCh* getProtocolName() const;
00158     const XMLCh* getQuery() const;
00159     const XMLCh* getURLText() const;
00160     const XMLCh* getUser() const;
00161     MemoryManager* getMemoryManager() const;
00162 
00163 
00164     // -----------------------------------------------------------------------
00165     //  Setter methods
00166     // -----------------------------------------------------------------------
00167     void setURL(const XMLCh* const urlText);
00168     void setURL
00169     (
00170         const   XMLCh* const    baseURL
00171         , const XMLCh* const    relativeURL
00172     );
00173     void setURL
00174     (
00175         const   XMLURL&         baseURL
00176         , const XMLCh* const    relativeURL
00177     );
00178 
00179 
00180     // -----------------------------------------------------------------------
00181     //  Miscellaneous methods
00182     // -----------------------------------------------------------------------
00183     bool isRelative() const;
00184     bool hasInvalidChar() const;
00185     BinInputStream* makeNewStream() const;
00186     void makeRelativeTo(const XMLCh* const baseURLText);
00187     void makeRelativeTo(const XMLURL& baseURL);
00188 
00189 
00190 private:
00191     // -----------------------------------------------------------------------
00192     //  Private helper methods
00193     // -----------------------------------------------------------------------
00194     void buildFullText();
00195     void cleanup();
00196     bool conglomerateWithBase(const XMLURL& baseURL, bool useExceptions=true);
00197     void parse
00198     (
00199         const   XMLCh* const    urlText
00200     );
00201 
00202 
00203     // -----------------------------------------------------------------------
00204     //  Data members
00205     //
00206     //  fFragment
00207     //      The fragment part of the URL, if any. If none, its a null.
00208     //
00209     //  fHost
00210     //      The host part of the URL that was parsed out. This one will often
00211     //      be null (or "localhost", which also means the current machine.)
00212     //
00213     //  fPassword
00214     //      The password found, if any. If none then its a null.
00215     //
00216     //  fPath
00217     //      The path part of the URL that was parsed out, if any. If none,
00218     //      then its a null.
00219     //
00220     //  fPortNum
00221     //      The port that was indicated in the URL. If no port was provided
00222     //      explicitly, then its left zero.
00223     //
00224     //  fProtocol
00225     //      Indicates the type of the URL's source. The text of the prefix
00226     //      can be gotten from this.
00227     //
00228     //  fQuery
00229     //      The query part of the URL, if any. If none, then its a null.
00230     //
00231     //  fUser
00232     //      The username found, if any. If none, then its a null.
00233     //
00234     //  fURLText
00235     //      This is a copy of the URL text, after it has been taken apart,
00236     //      made relative if needed, canonicalized, and then put back
00237     //      together. Its only created upon demand.
00238     //
00239     //  fHasInvalidChar
00240     //      This indicates if the URL Text contains invalid characters as per
00241     //      RFC 2396 standard.
00242     // -----------------------------------------------------------------------
00243     MemoryManager*  fMemoryManager;
00244     XMLCh*          fFragment;
00245     XMLCh*          fHost;
00246     XMLCh*          fPassword;
00247     XMLCh*          fPath;
00248     unsigned int    fPortNum;
00249     Protocols       fProtocol;
00250     XMLCh*          fQuery;
00251     XMLCh*          fUser;
00252     XMLCh*          fURLText;
00253     bool            fHasInvalidChar;
00254 };
00255 
00256 
00257 // ---------------------------------------------------------------------------
00258 //  XMLURL: Public operators
00259 // ---------------------------------------------------------------------------
00260 inline bool XMLURL::operator!=(const XMLURL& toCompare) const
00261 {
00262     return !operator==(toCompare);
00263 }
00264 
00265 
00266 // ---------------------------------------------------------------------------
00267 //  XMLURL: Getter methods
00268 // ---------------------------------------------------------------------------
00269 inline const XMLCh* XMLURL::getFragment() const
00270 {
00271     return fFragment;
00272 }
00273 
00274 inline const XMLCh* XMLURL::getHost() const
00275 {
00276     return fHost;
00277 }
00278 
00279 inline const XMLCh* XMLURL::getPassword() const
00280 {
00281     return fPassword;
00282 }
00283 
00284 inline const XMLCh* XMLURL::getPath() const
00285 {
00286     return fPath;
00287 }
00288 
00289 inline XMLURL::Protocols XMLURL::getProtocol() const
00290 {
00291     return fProtocol;
00292 }
00293 
00294 inline const XMLCh* XMLURL::getQuery() const
00295 {
00296     return fQuery;
00297 }
00298 
00299 inline const XMLCh* XMLURL::getUser() const
00300 {
00301     return fUser;
00302 }
00303 
00304 inline const XMLCh* XMLURL::getURLText() const
00305 {
00306     //
00307     //  Fault it in if not already. Since this is a const method and we
00308     //  can't use mutable members due the compilers we have to support,
00309     //  we have to cast off the constness.
00310     //
00311     if (!fURLText)
00312         ((XMLURL*)this)->buildFullText();
00313 
00314     return fURLText;
00315 }
00316 
00317 inline MemoryManager* XMLURL::getMemoryManager() const
00318 {
00319     return fMemoryManager;
00320 }
00321 
00322 MakeXMLException(MalformedURLException, )
00323 
00324 XERCES_CPP_NAMESPACE_END
00325 
00326 
00327 #endif


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