src/acl/HasComponentData.cc

   1 /*
   2  * Copyright (C) 1996-2023 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 #include "squid.h"
  10 #include "acl/HasComponentData.h"
  11 #include "cache_cf.h"
  12 #include "ConfigParser.h"
  13 #include "sbuf/Algorithms.h"
  14
  15 const SBuf ACLHasComponentData::RequestStr("request");
  16 const SBuf ACLHasComponentData::ResponseStr("response");
  17 const SBuf ACLHasComponentData::AleStr("ALE");
  18
  19 ACLHasComponentData::ACLHasComponentData()
  20     : componentMethods(coEnd, nullptr)
  21 { }
  22
  23 void
  24 ACLHasComponentData::parse()
  25 {
  26     const auto tok = ConfigParser::strtokFile();
  27     if (!tok) {
  28         debugs(28, DBG_CRITICAL, "FATAL: \"has\" acl argument missing");
  29         self_destruct();
  30         return;
  31     }
  32
  33     parseComponent(tok);
  34
  35     if (ConfigParser::strtokFile()) {
  36         debugs(28, DBG_CRITICAL, "FATAL: multiple components not supported for \"has\" acl");
  37         self_destruct();
  38         return;
  39     }
  40 }
  41
  42 bool
  43 ACLHasComponentData::match(ACLChecklist *checklist)
  44 {
  45     for (const auto method: componentMethods)
  46         if (method && (checklist->*method)())
  47             return true;
  48     return false;
  49 }
  50
  51 SBufList
  52 ACLHasComponentData::dump() const
  53 {
  54     SBufList sl;
  55     if (componentMethods.at(coRequest))
  56         sl.push_back(RequestStr);
  57     if (componentMethods.at(coResponse))
  58         sl.push_back(ResponseStr);
  59     if (componentMethods.at(coAle))
  60         sl.push_back(AleStr);
  61     return sl;
  62 }
  63
  64 void
  65 ACLHasComponentData::parseComponent(const char *token)
  66 {
  67     if (RequestStr.cmp(token) == 0)
  68         componentMethods[coRequest] = &ACLChecklist::hasRequest;
  69     else if (ResponseStr.cmp(token) == 0)
  70         componentMethods[coResponse] = &ACLChecklist::hasReply;
  71     else if (AleStr.cmp(token) == 0)
  72         componentMethods[coAle] = &ACLChecklist::hasAle;
  73     else {
  74         debugs(28, DBG_CRITICAL, "FATAL: unsupported component '" << token << "' for 'has' acl");
  75         self_destruct();
  76     }
  77 }
  78