src/esi/ExpatParser.cc

   1
   2 /*
   3  * $Id$
   4  *
   5  * DEBUG: section 86    ESI processing
   6  * AUTHOR: Robert Collins
   7  *
   8  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   9  * ----------------------------------------------------------
  10  *
  11  *  Squid is the result of efforts by numerous individuals from
  12  *  the Internet community; see the CONTRIBUTORS file for full
  13  *  details.   Many organizations have provided support for Squid's
  14  *  development; see the SPONSORS file for full details.  Squid is
  15  *  Copyrighted (C) 2001 by the Regents of the University of
  16  *  California; see the COPYRIGHT file for full details.  Squid
  17  *  incorporates software developed and/or copyrighted by other
  18  *  sources; see the CREDITS file for full details.
  19  *
  20  *  This program is free software; you can redistribute it and/or modify
  21  *  it under the terms of the GNU General Public License as published by
  22  *  the Free Software Foundation; either version 2 of the License, or
  23  *  (at your option) any later version.
  24  *
  25  *  This program is distributed in the hope that it will be useful,
  26  ;  but WITHOUT ANY WARRANTY; without even the implied warranty of
  27  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  28  *  GNU General Public License for more details.
  29  *
  30  *  You should have received a copy of the GNU General Public License
  31  *  along with this program; if not, write to the Free Software
  32  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  33  *
  34  */
  35
  36 #include "squid-old.h"
  37
  38 #if USE_SQUID_ESI && HAVE_LIBEXPAT
  39
  40 #include "esi/ExpatParser.h"
  41
  42 EsiParserDefinition(ESIExpatParser);
  43
  44 ESIExpatParser::ESIExpatParser(ESIParserClient *aClient) : theClient (aClient)
  45 {
  46     /* TODO: grab the document encoding from the headers */
  47     p = XML_ParserCreateNS(NULL,'|');
  48     XML_SetUserData (myParser(), static_cast<void *>(this));
  49     XML_SetElementHandler(myParser(), Start, End);
  50     XML_SetDefaultHandler(myParser(), Default);
  51     XML_SetCommentHandler(myParser(), Comment);
  52     XML_UseParserAsHandlerArg(myParser());
  53 }
  54
  55 ESIExpatParser::~ESIExpatParser()
  56 {
  57     XML_ParserFree (myParser());
  58     p = NULL;
  59 }
  60
  61 void
  62 ESIExpatParser::Start(void *data,const XML_Char *el, const char **attr)
  63 {
  64     XML_Parser parser = static_cast<XML_Parser>(data);
  65     ESIExpatParser *me = (ESIExpatParser *)XML_GetUserData(parser);
  66     me->theClient->start (el, attr, XML_GetSpecifiedAttributeCount (parser));
  67 }
  68
  69 void
  70 ESIExpatParser::End(void *data,const XML_Char *el)
  71 {
  72     XML_Parser parser = static_cast<XML_Parser>(data);
  73     ESIExpatParser *me = (ESIExpatParser *)XML_GetUserData(parser);
  74     me->theClient->end (el);
  75 }
  76
  77 void
  78 ESIExpatParser::Default(void *data, const XML_Char *s, int len)
  79 {
  80     XML_Parser parser = static_cast<XML_Parser>(data);
  81     ESIExpatParser *me = (ESIExpatParser *)XML_GetUserData(parser);
  82     me->theClient->parserDefault (s, len);
  83 }
  84
  85 void
  86 ESIExpatParser::Comment(void *data, const XML_Char *s)
  87 {
  88     XML_Parser parser = static_cast<XML_Parser>(data);
  89     ESIExpatParser *me = (ESIExpatParser *)XML_GetUserData(parser);
  90     me->theClient->parserComment (s);
  91 }
  92
  93 bool
  94 ESIExpatParser::parse(char const *dataToParse, size_t const lengthOfData, bool const endOfStream)
  95 {
  96     return XML_Parse(myParser(), dataToParse, lengthOfData, endOfStream);
  97 }
  98
  99 long int
 100 ESIExpatParser::lineNumber() const
 101 {
 102     return (long int)XML_GetCurrentLineNumber(myParser());
 103 }
 104
 105 char const *
 106 ESIExpatParser::errorString() const
 107 {
 108     return XML_ErrorString(XML_GetErrorCode(myParser()));
 109 }
 110
 111 #endif /* USE_SQUID_ESI */