src/acl/SourceDomain.cc

   1 /*
   2  * Copyright (C) 1996-2014 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 28    Access Control */
  10
  11 #include "squid.h"
  12 #include "acl/Checklist.h"
  13 #include "acl/DomainData.h"
  14 #include "acl/RegexData.h"
  15 #include "acl/SourceDomain.h"
  16 #include "fqdncache.h"
  17 #include "HttpRequest.h"
  18
  19 SourceDomainLookup SourceDomainLookup::instance_;
  20
  21 SourceDomainLookup *
  22 SourceDomainLookup::Instance()
  23 {
  24     return &instance_;
  25 }
  26
  27 void
  28 SourceDomainLookup::checkForAsync(ACLChecklist *checklist) const
  29 {
  30     fqdncache_nbgethostbyaddr(Filled(checklist)->src_addr, LookupDone, checklist);
  31 }
  32
  33 void
  34 SourceDomainLookup::LookupDone(const char *fqdn, const DnsLookupDetails &details, void *data)
  35 {
  36     ACLFilledChecklist *checklist = Filled((ACLChecklist*)data);
  37     checklist->markSourceDomainChecked();
  38     checklist->request->recordLookup(details);
  39     checklist->resumeNonBlockingCheck(SourceDomainLookup::Instance());
  40 }
  41
  42 int
  43 ACLSourceDomainStrategy::match (ACLData<MatchType> * &data, ACLFilledChecklist *checklist, ACLFlags &)
  44 {
  45     const char *fqdn = NULL;
  46     fqdn = fqdncache_gethostbyaddr(checklist->src_addr, FQDN_LOOKUP_IF_MISS);
  47
  48     if (fqdn) {
  49         return data->match(fqdn);
  50     } else if (!checklist->sourceDomainChecked()) {
  51         /* FIXME: Using AclMatchedName here is not OO correct. Should find a way to the current acl */
  52         debugs(28, 3, "aclMatchAcl: Can't yet compare '" << AclMatchedName << "' ACL for '" << checklist->src_addr << "'");
  53         if (checklist->goAsync(SourceDomainLookup::Instance()))
  54             return -1;
  55         // else fall through to "none" match, hiding the lookup failure (XXX)
  56     }
  57
  58     return data->match("none");
  59 }
  60
  61 ACLSourceDomainStrategy *
  62 ACLSourceDomainStrategy::Instance()
  63 {
  64     return &Instance_;
  65 }
  66
  67 ACLSourceDomainStrategy ACLSourceDomainStrategy::Instance_;
  68