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 "protos.h"
  41 #include "wordlist.h"
  42
  43 ACLCertificateData::ACLCertificateData(SSLGETATTRIBUTE *sslStrategy) : attribute (NULL), values (), sslAttributeCall (sslStrategy)
  44 {}
  45
  46 ACLCertificateData::ACLCertificateData(ACLCertificateData const &old) : attribute (NULL), values (old.values), sslAttributeCall (old.sslAttributeCall)
  47 {
  48     if (old.attribute)
  49         attribute = xstrdup (old.attribute);
  50 }
  51
  52 template<class T>
  53 inline void
  54 xRefFree(T &thing)
  55 {
  56     xfree (thing);
  57 }
  58
  59 ACLCertificateData::~ACLCertificateData()
  60 {
  61     safe_free (attribute);
  62 }
  63
  64 template<class T>
  65 inline int
  66 splaystrcmp (T&l, T&r)
  67 {
  68     return strcmp ((char *)l,(char *)r);
  69 }
  70
  71 bool
  72 ACLCertificateData::match(SSL *ssl)
  73 {
  74     if (!ssl)
  75         return 0;
  76
  77     char const *value = sslAttributeCall(ssl, attribute);
  78
  79     if (value == NULL)
  80         return 0;
  81
  82     return values.match(value);
  83 }
  84
  85 static void
  86 aclDumpAttributeListWalkee(char * const & node_data, void *outlist)
  87 {
  88     /* outlist is really a wordlist ** */
  89     wordlistAdd((wordlist **)outlist, node_data);
  90 }
  91
  92 wordlist *
  93 ACLCertificateData::dump()
  94 {
  95     wordlist *wl = NULL;
  96     wordlistAdd(&wl, attribute);
  97     /* damn this is VERY inefficient for long ACL lists... filling
  98      * a wordlist this way costs Sum(1,N) iterations. For instance
  99      * a 1000-elements list will be filled in 499500 iterations.
 100      */
 101     /* XXX FIXME: don't break abstraction */
 102     values.values->walk(aclDumpAttributeListWalkee, &wl);
 103     return wl;
 104 }
 105
 106 void
 107 ACLCertificateData::parse()
 108 {
 109     char *newAttribute = strtokFile();
 110
 111     if (!newAttribute)
 112         self_destruct();
 113
 114     /* an acl must use consistent attributes in all config lines */
 115     if (attribute) {
 116         if (strcasecmp(newAttribute, attribute) != 0)
 117             self_destruct();
 118     } else
 119         attribute = xstrdup(newAttribute);
 120
 121     values.parse();
 122 }
 123
 124 bool
 125 ACLCertificateData::empty() const
 126 {
 127     return values.empty();
 128 }
 129
 130 ACLData<SSL *> *
 131 ACLCertificateData::clone() const
 132 {
 133     /* Splay trees don't clone yet. */
 134     return new ACLCertificateData(*this);
 135 }