src/esi/ExpatParser.cc

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