src/acl/HasComponentData.cc

   1 /*
   2  * Copyright (C) 1996-2019 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 char *tok = ConfigParser::NextToken();
  27     if (!tok) {
  28         debugs(28, DBG_CRITICAL, "FATAL: \"has\" acl argument missing");
  29         self_destruct();
  30         return;
  31     }
  32     if (ConfigParser::PeekAtToken()) {
  33         debugs(28, DBG_CRITICAL, "FATAL: multiple components not supported for \"has\" acl");
  34         self_destruct();
  35         return;
  36     }
  37     parseComponent(tok);
  38 }
  39
  40 bool
  41 ACLHasComponentData::match(ACLChecklist *checklist)
  42 {
  43     for (const auto method: componentMethods)
  44         if (method && (checklist->*method)())
  45             return true;
  46     return false;
  47 }
  48
  49 SBufList
  50 ACLHasComponentData::dump() const
  51 {
  52     SBufList sl;
  53     if (componentMethods.at(coRequest))
  54         sl.push_back(RequestStr);
  55     if (componentMethods.at(coResponse))
  56         sl.push_back(ResponseStr);
  57     if (componentMethods.at(coAle))
  58         sl.push_back(AleStr);
  59     return sl;
  60 }
  61
  62 void
  63 ACLHasComponentData::parseComponent(const char *token)
  64 {
  65     if (RequestStr.cmp(token) == 0)
  66         componentMethods[coRequest] = &ACLChecklist::hasRequest;
  67     else if (ResponseStr.cmp(token) == 0)
  68         componentMethods[coResponse] = &ACLChecklist::hasReply;
  69     else if (AleStr.cmp(token) == 0)
  70         componentMethods[coAle] = &ACLChecklist::hasAle;
  71     else {
  72         debugs(28, DBG_CRITICAL, "FATAL: unsupported component '" << token << "' for 'has' acl");
  73         self_destruct();
  74     }
  75 }
  76
  77 ACLData<ACLChecklist *> *
  78 ACLHasComponentData::clone() const
  79 {
  80     return new ACLHasComponentData(*this);
  81 }
  82