src/esi/Parser.cc

   1 /*
   2  * Copyright (C) 1996-2018 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 /* DEBUG: section 86    ESI processing */
  10
  11 #include "squid.h"
  12 #include "esi/Parser.h"
  13 #include "fatal.h"
  14
  15 char *ESIParser::Type = NULL;
  16 ESIParser::Register *ESIParser::Parsers = NULL;
  17 ESIParser::Register *ESIParser::Parser = NULL;
  18
  19 ESIParser::Pointer
  20 ESIParser::NewParser(ESIParserClient *aClient)
  21 {
  22     if (Parser == NULL) {
  23         Parser = Parsers;
  24
  25         while (Parser != NULL && strcasecmp(Parser->name, Type) != 0)
  26             Parser = Parser->next;
  27
  28         if (Parser == NULL)
  29             fatal ("Unknown ESI Parser type");
  30     }
  31
  32     return (Parser->newParser)(aClient);
  33 }
  34
  35 ESIParser::Register::Register(const char *_name, ESIParser::Pointer (*_newParser)(ESIParserClient *aClient)) : name(_name), newParser(_newParser)
  36 {
  37     this->next = ESIParser::Parsers;
  38     ESIParser::Parsers = this;
  39 }
  40
  41 ESIParser::Register::~Register()
  42 {
  43     // TODO: support random-order deregistration
  44     assert(ESIParser::Parsers == this);
  45     ESIParser::Parsers = next;
  46 }
  47