helpers/external_acl/kerberos_ldap_group/support_member.cc

   1 /*
   2  * -----------------------------------------------------------------------------
   3  *
   4  * Author: Markus Moeller (markus_moeller at compuserve.com)
   5  *
   6  * Copyright (C) 2007 Markus Moeller. All rights reserved.
   7  *
   8  *   This program is free software; you can redistribute it and/or modify
   9  *   it under the terms of the GNU General Public License as published by
  10  *   the Free Software Foundation; either version 2 of the License, or
  11  *   (at your option) any later version.
  12  *
  13  *   This program is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with this program; if not, write to the Free Software
  20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
  21  *
  22  * -----------------------------------------------------------------------------
  23  */
  24
  25 #include "squid.h"
  26 #include "util.h"
  27
  28 #ifdef HAVE_LDAP
  29
  30 #include "support.h"
  31
  32 int
  33 check_memberof(struct main_args *margs, char *user, char *domain)
  34 {
  35
  36     /*
  37      *  Check order:
  38      *
  39      *  1.  Check domain against list of groups per domain
  40      *  1a. If domain does not exist in list try default domain
  41      *  1b. If default domain does not exist use default group against ldap url with user/password
  42      *  1c. If default group does not exist exit with error.
  43      *  2.  Query ldap membership
  44      *  2a. Use GSSAPI/SASL with HTTP/fqdn@DOMAIN credentials from keytab
  45      *  2b. Use username/password with TLS
  46      *
  47      */
  48     struct gdstruct *gr;
  49     int found = 0;
  50
  51     /* Check users domain */
  52
  53     gr = margs->groups;
  54     while (gr && domain) {
  55         debug((char *) "%s| %s: DEBUG: User domain loop: group@domain %s@%s\n", LogTime(), PROGRAM, gr->group, gr->domain ? gr->domain : "NULL");
  56         if (gr->domain && !strcasecmp(gr->domain, domain)) {
  57             debug((char *) "%s| %s: DEBUG: Found group@domain %s@%s\n", LogTime(), PROGRAM, gr->group, gr->domain);
  58             /* query ldap */
  59             if (get_memberof(margs, user, domain, gr->group)) {
  60                 if (debug_enabled)
  61                     debug((char *) "%s| %s: INFO: User %s is member of group@domain %s@%s\n", LogTime(), PROGRAM, user, gr->group, gr->domain);
  62                 else
  63                     log((char *) "%s| %s: INFO: User %s is member of group@domain %s@%s\n", LogTime(), PROGRAM, user, gr->group, gr->domain);
  64                 ++found;
  65                 break;
  66             } else {
  67                 if (debug_enabled)
  68                     debug((char *) "%s| %s: INFO: User %s is not member of group@domain %s@%s\n", LogTime(), PROGRAM, user, gr->group, gr->domain);
  69                 else
  70                     log((char *) "%s| %s: INFO: User %s is not member of group@domain %s@%s\n", LogTime(), PROGRAM, user, gr->group, gr->domain);
  71             }
  72         }
  73         gr = gr->next;
  74     }
  75
  76     if (found)
  77         return (1);
  78
  79     /* Check default domain */
  80
  81     gr = margs->groups;
  82     while (gr && domain) {
  83         debug((char *) "%s| %s: DEBUG: Default domain loop: group@domain %s@%s\n", LogTime(), PROGRAM, gr->group, gr->domain ? gr->domain : "NULL");
  84         if (gr->domain && !strcasecmp(gr->domain, "")) {
  85             debug((char *) "%s| %s: DEBUG: Found group@domain %s@%s\n", LogTime(), PROGRAM, gr->group, gr->domain);
  86             /* query ldap */
  87             if (get_memberof(margs, user, domain, gr->group)) {
  88                 if (debug_enabled)
  89                     debug((char *) "%s| %s: INFO: User %s is member of group@domain %s@%s\n", LogTime(), PROGRAM, user, gr->group, gr->domain);
  90                 else
  91                     log((char *) "%s| %s: INFO: User %s is member of group@domain %s@%s\n", LogTime(), PROGRAM, user, gr->group, gr->domain);
  92                 ++found;
  93                 break;
  94             } else {
  95                 if (debug_enabled)
  96                     debug((char *) "%s| %s: INFO: User %s is not member of group@domain %s@%s\n", LogTime(), PROGRAM, user, gr->group, gr->domain);
  97                 else
  98                     log((char *) "%s| %s: INFO: User %s is not member of group@domain %s@%s\n", LogTime(), PROGRAM, user, gr->group, gr->domain);
  99             }
 100         }
 101         gr = gr->next;
 102     }
 103
 104     if (found)
 105         return (1);
 106
 107     /* Check default group with ldap url */
 108
 109     gr = margs->groups;
 110     while (gr) {
 111         debug((char *) "%s| %s: DEBUG: Default group loop: group@domain %s@%s\n", LogTime(), PROGRAM, gr->group, gr->domain ? gr->domain : "NULL");
 112         if (!gr->domain) {
 113             debug((char *) "%s| %s: DEBUG: Found group@domain %s@%s\n", LogTime(), PROGRAM, gr->group, gr->domain ? gr->domain : "NULL");
 114             /* query ldap */
 115             if (get_memberof(margs, user, domain, gr->group)) {
 116                 if (debug_enabled)
 117                     debug((char *) "%s| %s: INFO: User %s is member of group@domain %s@%s\n", LogTime(), PROGRAM, user, gr->group, gr->domain ? gr->domain : "NULL");
 118                 else
 119                     log((char *) "%s| %s: INFO: User %s is member of group@domain %s@%s\n", LogTime(), PROGRAM, user, gr->group, gr->domain ? gr->domain : "NULL");
 120                 ++found;
 121                 break;
 122             } else {
 123                 if (debug_enabled)
 124                     debug((char *) "%s| %s: INFO: User %s is not member of group@domain %s@%s\n", LogTime(), PROGRAM, user, gr->group, gr->domain ? gr->domain : "NULL");
 125                 else
 126                     log((char *) "%s| %s: INFO: User %s is not member of group@domain %s@%s\n", LogTime(), PROGRAM, user, gr->group, gr->domain ? gr->domain : "NULL");
 127             }
 128         }
 129         gr = gr->next;
 130     }
 131
 132     if (found)
 133         return (1);
 134
 135     return (0);
 136 }
 137 #endif