src/acl/CertificateData.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/CertificateData.h"
  39 #include "acl/Checklist.h"
  40 #include "wordlist.h"
  41
  42 ACLCertificateData::ACLCertificateData(SSLGETATTRIBUTE *sslStrategy) : attribute (NULL), values (), sslAttributeCall (sslStrategy)
  43 {}
  44
  45 ACLCertificateData::ACLCertificateData(ACLCertificateData const &old) : attribute (NULL), values (old.values), sslAttributeCall (old.sslAttributeCall)
  46 {
  47     if (old.attribute)
  48         attribute = xstrdup (old.attribute);
  49 }
  50
  51 template<class T>
  52 inline void
  53 xRefFree(T &thing)
  54 {
  55     xfree (thing);
  56 }
  57
  58 ACLCertificateData::~ACLCertificateData()
  59 {
  60     safe_free (attribute);
  61 }
  62
  63 template<class T>
  64 inline int
  65 splaystrcmp (T&l, T&r)
  66 {
  67     return strcmp ((char *)l,(char *)r);
  68 }
  69
  70 bool
  71 ACLCertificateData::match(SSL *ssl)
  72 {
  73     if (!ssl)
  74         return 0;
  75
  76     char const *value = sslAttributeCall(ssl, attribute);
  77
  78     if (value == NULL)
  79         return 0;
  80
  81     return values.match(value);
  82 }
  83
  84 static void
  85 aclDumpAttributeListWalkee(char * const & node_data, void *outlist)
  86 {
  87     /* outlist is really a wordlist ** */
  88     wordlistAdd((wordlist **)outlist, node_data);
  89 }
  90
  91 wordlist *
  92 ACLCertificateData::dump()
  93 {
  94     wordlist *wl = NULL;
  95     wordlistAdd(&wl, attribute);
  96     /* damn this is VERY inefficient for long ACL lists... filling
  97      * a wordlist this way costs Sum(1,N) iterations. For instance
  98      * a 1000-elements list will be filled in 499500 iterations.
  99      */
 100     /* XXX FIXME: don't break abstraction */
 101     values.values->walk(aclDumpAttributeListWalkee, &wl);
 102     return wl;
 103 }
 104
 105 void
 106 ACLCertificateData::parse()
 107 {
 108     char *newAttribute = strtokFile();
 109
 110     if (!newAttribute)
 111         self_destruct();
 112
 113     /* an acl must use consistent attributes in all config lines */
 114     if (attribute) {
 115         if (strcasecmp(newAttribute, attribute) != 0)
 116             self_destruct();
 117     } else
 118         attribute = xstrdup(newAttribute);
 119
 120     values.parse();
 121 }
 122
 123 bool
 124 ACLCertificateData::empty() const
 125 {
 126     return values.empty();
 127 }
 128
 129 ACLData<SSL *> *
 130 ACLCertificateData::clone() const
 131 {
 132     /* Splay trees don't clone yet. */
 133     return new ACLCertificateData(*this);
 134 }