src/acl/SourceDomain.cc

   1 /*
   2  * $Id$
   3  *
   4  * DEBUG: section 28    Access Control
   5  * AUTHOR: Duane Wessels
   6  *
   7  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   8  * ----------------------------------------------------------
   9  *
  10  *  Squid is the result of efforts by numerous individuals from
  11  *  the Internet community; see the CONTRIBUTORS file for full
  12  *  details.   Many organizations have provided support for Squid's
  13  *  development; see the SPONSORS file for full details.  Squid is
  14  *  Copyrighted (C) 2001 by the Regents of the University of
  15  *  California; see the COPYRIGHT file for full details.  Squid
  16  *  incorporates software developed and/or copyrighted by other
  17  *  sources; see the CREDITS file for full details.
  18  *
  19  *  This program is free software; you can redistribute it and/or modify
  20  *  it under the terms of the GNU General Public License as published by
  21  *  the Free Software Foundation; either version 2 of the License, or
  22  *  (at your option) any later version.
  23  *
  24  *  This program is distributed in the hope that it will be useful,
  25  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  26  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  27  *  GNU General Public License for more details.
  28  *
  29  *  You should have received a copy of the GNU General Public License
  30  *  along with this program; if not, write to the Free Software
  31  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  32  *
  33  *
  34  * Copyright (c) 2003, Robert Collins <robertc@squid-cache.org>
  35  */
  36
  37 #include "squid.h"
  38 #include "acl/SourceDomain.h"
  39 #include "acl/Checklist.h"
  40 #include "acl/RegexData.h"
  41 #include "acl/DomainData.h"
  42 #include "HttpRequest.h"
  43 #include "protos.h"
  44
  45 SourceDomainLookup SourceDomainLookup::instance_;
  46
  47 SourceDomainLookup *
  48 SourceDomainLookup::Instance()
  49 {
  50     return &instance_;
  51 }
  52
  53 void
  54 SourceDomainLookup::checkForAsync(ACLChecklist *checklist) const
  55 {
  56     checklist->asyncInProgress(true);
  57     fqdncache_nbgethostbyaddr(Filled(checklist)->src_addr, LookupDone, checklist);
  58 }
  59
  60 void
  61 SourceDomainLookup::LookupDone(const char *fqdn, const DnsLookupDetails &details, void *data)
  62 {
  63     ACLFilledChecklist *checklist = Filled((ACLChecklist*)data);
  64     assert (checklist->asyncState() == SourceDomainLookup::Instance());
  65
  66     checklist->asyncInProgress(false);
  67     checklist->changeState (ACLChecklist::NullState::Instance());
  68     checklist->markSourceDomainChecked();
  69     checklist->request->recordLookup(details);
  70     checklist->matchNonBlocking();
  71 }
  72
  73
  74 int
  75 ACLSourceDomainStrategy::match (ACLData<MatchType> * &data, ACLFilledChecklist *checklist)
  76 {
  77     const char *fqdn = NULL;
  78     fqdn = fqdncache_gethostbyaddr(checklist->src_addr, FQDN_LOOKUP_IF_MISS);
  79
  80     if (fqdn) {
  81         return data->match(fqdn);
  82     } else if (!checklist->sourceDomainChecked()) {
  83         /* FIXME: Using AclMatchedName here is not OO correct. Should find a way to the current acl */
  84         debugs(28, 3, "aclMatchAcl: Can't yet compare '" << AclMatchedName << "' ACL for '" << checklist->src_addr << "'");
  85         checklist->changeState(SourceDomainLookup::Instance());
  86         return 0;
  87     }
  88
  89     return data->match("none");
  90 }
  91
  92 ACLSourceDomainStrategy *
  93 ACLSourceDomainStrategy::Instance()
  94 {
  95     return &Instance_;
  96 }
  97
  98 ACLSourceDomainStrategy ACLSourceDomainStrategy::Instance_;