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* SQUID Web Proxy Cache http://www.squid-cache.org/
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* ----------------------------------------------------------
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* Squid is the result of efforts by numerous individuals from
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* the Internet community; see the CONTRIBUTORS file for full
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* details. Many organizations have provided support for Squid's
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* development; see the SPONSORS file for full details. Squid is
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* Copyrighted (C) 2001 by the Regents of the University of
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* California; see the COPYRIGHT file for full details. Squid
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* incorporates software developed and/or copyrighted by other
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* sources; see the CREDITS file for full details.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
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* Copyright (c) 2003, Robert Collins <robertc@squid-cache.org>
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#ifndef SQUID_ESICONTEXT_H
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#define SQUID_ESICONTEXT_H
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#include "esi/Element.h"
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#include "clientStream.h"
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class ClientHttpRequest;
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#include "esi/Parser.h"
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class ESIContext : public esiTreeParent, public ESIParserClient
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typedef RefCount<ESIContext> Pointer;
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void *operator new (size_t byteCount);
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void operator delete (void *address);
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ESIContext():reading_(true) {}
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/* when esi processing completes */
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void provideData(ESISegment::Pointer, ESIElement *source);
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void fail (ESIElement *source, char const*anError = NULL);
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void setErrorMessage(char const *);
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void addStackElement (ESIElement::Pointer element);
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void addLiteral (const char *s, int len);
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void finishChildren ();
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clientStreamNode *thisNode; /* our stream node */
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/* the request we are processing. HMM: cbdataReferencing this will result
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* in a circular reference, so we don't. Note: we are automatically freed
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* when it is, so thats ok. */
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ClientHttpRequest *http;
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/* an error has occured, send full body replies
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* regardless. Note that we don't fail midstream
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* because we buffer until we can not fail
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int finishedtemplate:1; /* we've read the entire template */
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int clientwantsdata:1; /* we need to satisfy a read request */
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int kicked:1; /* note on reentering the kick routine */
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int detached:1; /* our downstream has detached */
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err_type errorpage; /* if we error what page to use */
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http_status errorstatus; /* if we error, what code to return */
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char *errormessage; /* error to pass to error page */
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HttpReply *rep; /* buffered until we pass data downstream */
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ESISegment::Pointer buffered; /* unprocessed data - for whatever reason */
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ESISegment::Pointer incoming;
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/* processed data we are waiting to send, or for
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* potential errors to be resolved
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ESISegment::Pointer outbound;
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ESISegment::Pointer outboundtail; /* our write segment */
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/* the offset to the next character to send -
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* non zero if we haven't sent the entire segment
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size_t outbound_offset;
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int64_t readpos; /* the logical position we are reading from */
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int64_t pos; /* the logical position of outbound_offset in the data stream */
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ESIElement::Pointer stack[10]; /* a stack of esi elements that are open */
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int stackdepth; /* self explanatory */
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ESIParser::Pointer theParser;
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ESIElement::Pointer top();
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void init (ESIParserClient *);
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void freeResources();
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int parsing:1; /* libexpat is not reentrant on the same context */
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parserState; /* todo factor this off somewhere else; */
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ESIVarState *varState;
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ESIElement::Pointer tree;
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RefCount<ESIContext> cbdataLocker;
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bool failed() const {return flags.error != 0;}
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CBDATA_CLASS(ESIContext);
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void freeResources();
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void fixupOutboundTail();
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void appendOutboundData(ESISegment::Pointer theData);
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esiProcessResult_t process ();
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void parseOneBuffer();
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void updateCachedAST();
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bool hasCachedAST() const;
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virtual void start(const char *el, const char **attr, size_t attrCount);
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virtual void end(const char *el);
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virtual void parserDefault (const char *s, int len);
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virtual void parserComment (const char *s);
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#endif /* SQUID_ESICONTEXT_H */
added
removed
src/esi/Context.h
