gosa-plugins/heimdal/admin/systems/services/kerberos/class_password-methods-MIT.inc

   1 <?php
   2 /*
   3    This code is part of GOsa (https://gosa.gonicus.de)
   4    Copyright (C) 2008 Fabian Hickert
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 class passwordMethodMIT extends passwordMethod
  22 {
  23
  24   var $dn          = "new";     // DN of the current object
  25   var $parent_dn   = "new";     // parents DN
  26   var $is_account  = FALSE;     // This is TRUE if this object already has a krb extension
  27   var $server_list = array();   // A list with all configured servers
  28   var $map         = array();   // Mapping array, maps SERVER-REALM, REALM-SERVER ...
  29
  30   var $goKrbRealm  = "";        // The realm name this principal belongs to
  31   var $principal   = "";        // The principals name (e.g. user@MY-DOMAIN.SYS)
  32   var $is_new      = TRUE;      // Is TRUE if principal is new
  33
  34   var $si_error        = FALSE;
  35   var $si_error_msg    = "";
  36
  37   var $values = array(
  38       "PRINC_EXPIRE_TIME",      // Expiry date of this principal
  39       "PW_EXPIRATION",          // Password expiration
  40       "MAX_LIFE",               // Ticket lifetime
  41       "MASK",                   // I'dont know
  42       "MAX_RENEWABLE_LIFE",     // Max ticket lifetime when renewed
  43       "POLICY");                // The policy used by this principal
  44
  45   var $flags = array(
  46       "DISALLOW_POSTDATED"  ,   // Pohibit postdated tickets
  47       "DISALLOW_FORWARDABLE",   // Prohibit forwardable tickets
  48       "DISALLOW_RENEWABLE"  ,   // Prohibit renewable tickets
  49       "DISALLOW_PROXIABLE"  ,   // Disallow proxiable tickets
  50       "DISALLOW_DUP_SKEY"   ,   // Disallow user to user authentification
  51       "REQUIRES_PRE_AUTH"   ,   // Preauthentication required
  52       "REQUIRES_HW_AUTH"    ,   // Hardware preauthentication
  53       "DISALLOW_SVR"        ,   // Prohibit issuance of service tickets
  54       "DISALLOW_TGT_BASED"  ,   // Disallow Ticket-Granting Service
  55       "DISALLOW_ALL_TIX"    ,   // Forbid ticket issuance
  56       "REQUIRES_PWCHANGE"   ,   // Force a password change
  57       "PWCHANGE_SERVICE"    );  // Password change service
  58
  59   var $readonly = array(
  60       "FAIL_AUTH_COUNT",        // The number of failed logins
  61       "KVNO",                   // Key version number
  62       "LAST_FAILED",            // Last failed login time
  63       "LAST_PWD_CHANGE",        // Password last change time
  64       "LAST_SUCCESS",           // Last successful login
  65       "MOD_DATE");              // Last modification time
  66
  67
  68   var $POLICY                   = "";
  69   var $POLICIES                 = array(); // Policies provided by the corrently selected realm/server
  70
  71   var $PRINC_EXPIRE_TIME        = 0;
  72   var $PW_EXPIRATION            = 0;
  73   var $PRINC_EXPIRE_TIME_clear  = TRUE;
  74   var $PW_EXPIRATION_clear      = TRUE;
  75   var $MAX_LIFE                 = 0;
  76   var $MAX_RENEWABLE_LIFE       = 0;
  77   var $MASK                     = "";
  78
  79   var $DISALLOW_POSTDATED       = FALSE;
  80   var $DISALLOW_FORWARDABLE     = FALSE;
  81   var $DISALLOW_RENEWABLE       = FALSE;
  82   var $DISALLOW_PROXIABLE       = FALSE;
  83   var $DISALLOW_DUP_SKEY        = FALSE;
  84   var $REQUIRES_PRE_AUTH        = FALSE;
  85   var $REQUIRES_HW_AUTH         = FALSE;
  86   var $DISALLOW_SVR             = FALSE;
  87   var $DISALLOW_TGT_BASED       = FALSE;
  88   var $DISALLOW_ALL_TIX         = FALSE;
  89   var $REQUIRES_PWCHANGE        = FALSE;
  90   var $PWCHANGE_SERVICE         = FALSE;
  91
  92   var $FAIL_AUTH_COUNT          = 0;
  93   var $KVNO                     = "";
  94   var $LAST_FAILED              = 0;
  95   var $LAST_PWD_CHANGE          = 0;
  96   var $LAST_SUCCESS             = 0;
  97   var $MOD_DATE                 = 0;
  98
  99   function __construct(&$config,$dn = "new")
 100   {
 101     $this->config= $config;
 102     $this->parent_dn = $dn;
 103
 104     /* No config object given, this may be the case
 105        if there is only a is_available() request triggered.
 106      */
 107     if(!is_object($config)){
 108       return;
 109     }
 110
 111     /* Keep cache until we try to configure a principal
 112      */
 113     if($dn != "new" && $dn != ""){
 114       session::un_set("MIT_CACHE");
 115     }
 116
 117     /* Get a list of all kerberos servers, defined in ldap
 118        and get a list of principals they are providing.
 119      */
 120     $ldap = $this->config->get_ldap_link();
 121     $ldap->cd($this->config->current['BASE']);
 122     $ldap->search("(&(objectClass=goServer)(objectClass=goKrbServer))",array("goKrbRealm","cn","description","macAddress"));
 123     $this->server_list = array();
 124     while($attrs = $ldap->fetch()){
 125       if(!isset($attrs['macAddress'][0])) continue;
 126       if(!isset($attrs['description'][0])) $attrs['description'][0] ="";
 127
 128       $principals = $this->load_principals_for_server($attrs['macAddress'][0]);
 129
 130       /* Create Realm/Server/Principal mapping.
 131        */
 132       foreach($principals as $principal){
 133         $this->map["PRINCIPAL_SERVER"][$principal] = $attrs['cn'][0];
 134         $this->map["PRINCIPAL_REALM"] [$principal] = $attrs['goKrbRealm'][0];
 135       }
 136       $this->map["SERVER_REALM"][$attrs['cn'][0]] = $attrs['goKrbRealm'][0];
 137       $this->map["REALM_SERVER"][$attrs['goKrbRealm'][0]] = $attrs['cn'][0];
 138
 139       /* Set first realm as selected.
 140        */
 141       if($this->goKrbRealm == ""){
 142         $this->goKrbRealm = $attrs['goKrbRealm'][0];
 143       }
 144
 145       /* Create Server list
 146        */
 147       $this->server_list[$attrs['cn'][0]] = array("macAddress" => $attrs['macAddress'][0],
 148           "description"=> $attrs['description'][0],
 149           "dn"         => $attrs['dn'],
 150           "principals" => $principals,
 151           "goKrbRealm" => $attrs['goKrbRealm'][0],
 152           "cn"         => $attrs['cn'][0]);
 153     }
 154
 155     /* Load object data from ldap && initialize this class
 156      */
 157     $this->is_new = TRUE;
 158     if($dn != "new" && $dn != ""){
 159       $ldap = $this->config->get_ldap_link();
 160       $ldap->cd($dn);
 161       $ldap->cat($dn);
 162       $this->attrs = $ldap->fetch();
 163       if(isset($this->attrs['userPassword']) && preg_match("/".$this->get_hash_name()."/",$this->attrs['userPassword'][0])){
 164
 165         $p_name = preg_replace("/^\{".$this->get_hash_name()."\}/","",$this->attrs['userPassword'][0]);
 166
 167         /* Try to detect server our principal is configured on
 168          */
 169         if($this->map['PRINCIPAL_SERVER'][$p_name]){
 170           $server= $this->map['PRINCIPAL_SERVER'][$p_name];
 171           $this->goKrbRealm = $this->map['SERVER_REALM'][$server];
 172           $this->principal  = $p_name;
 173
 174           /* Load policies */
 175           $server_name = $this->map['REALM_SERVER'][$this->goKrbRealm];
 176           $server_mac  = $this->server_list[$server_name]['macAddress'];
 177           $this->POLICIES = $this->load_policies_for_server($server_mac);
 178
 179           /* Load principal */
 180           $this->load_principal($this->server_list[$server]['macAddress'],$p_name);
 181           $this->is_new = FALSE;
 182         }
 183       }
 184     }
 185   }
 186
 187
 188   /*! \brief  Load this plugin with the values of the given principal
 189     @param  String  The macAddress of the kerberos server.
 190     @param  String  The name of the principal to load.
 191    */
 192   public function load_principal($server,$name)
 193   {
 194     $o = new gosaSupportDaemon();
 195     $tmp = array();
 196     $tmp = $o->krb5_get_principal($server,$name);
 197     if($o->is_error()){
 198
 199       $this->si_error     = TRUE;
 200       $this->si_error_msg = $o->get_error();
 201       msg_dialog::display(_("Service infrastructure"),msgPool::siError($o->get_error()),ERROR_DIALOG);
 202     }else{
 203
 204       /* Load flags
 205        */
 206       if(isset($tmp['ATTRIBUTES'])){
 207         foreach($this->flags as $flag){
 208           if(in_array($flag,$tmp['ATTRIBUTES'])){
 209             $this->$flag = TRUE;
 210           }
 211         }
 212       }
 213
 214       /* Load readonly attributes
 215        */
 216       foreach($this->readonly as $attr){
 217         if(isset($tmp[$attr])){
 218           $this->$flag = $tmp[$attr];
 219         }
 220       }
 221
 222       /* Load modifyable attributes
 223        */
 224       foreach($this->values as $attr){
 225         if(isset($tmp[$attr])){
 226           $this->$flag = $tmp[$attr];
 227         }
 228       }
 229     }
 230   }
 231
 232
 233   /*! \brief get list of all configured principals
 234     for a given server.
 235     The results will cached.
 236    */
 237   public function load_principals_for_server($server)
 238   {
 239     if(!session::is_set("MIT_PRINCIPAL_CACHE")){
 240       session::set("MIT_PRINCIPAL_CACHE",array());
 241     }
 242     $cache = session::get("MIT_PRINCIPAL_CACHE");
 243     if(!isset($cache[$server])){
 244       $o = new gosaSupportDaemon();
 245       $tmp = $o->krb5_list_principals($server);
 246       if($o->is_error()){
 247         $this->si_error     = TRUE;
 248         $this->si_error_msg = $o->get_error();
 249         msg_dialog::display(_("Service infrastructure"),msgPool::siError($o->get_error()),ERROR_DIALOG);
 250       }else{
 251         $cache[$server] = $tmp;
 252       }
 253       session::set("MIT_PRINCIPAL_CACHE",$cache);
 254     }
 255     return($cache[$server]);
 256   }
 257
 258
 259   /*! \brief get list of all configured policies
 260     for a given server.
 261     The results will cached.
 262    */
 263   public function load_policies_for_server($server)
 264   {
 265     if(!session::is_set("MIT_POLICY_CACHE")){
 266       session::set("MIT_POLICY_CACHE",array());
 267     }
 268     $cache = session::get("MIT_POLICY_CACHE");
 269     if(!isset($cache[$server])){
 270       $o = new gosaSupportDaemon();
 271       $tmp = $o->krb5_list_policies($server);
 272       if($o->is_error()){
 273         $this->si_error     = TRUE;
 274         $this->si_error_msg = $o->get_error();
 275         msg_dialog::display(_("Service infrastructure"),msgPool::siError($o->get_error()),ERROR_DIALOG);
 276       }else{
 277         $cache[$server] = array();
 278         $cache[$server]["_none_"] = _("none");
 279         foreach($tmp as $policy){
 280           $cache[$server][$policy] = $policy;
 281         }
 282         ksort($cache[$server]);
 283       }
 284       session::set("MIT_POLICY_CACHE",$cache);
 285     }
 286     return($cache[$server]);
 287   }
 288
 289
 290   /*! \brief Check if this password method is useable.
 291     This is the case if there is a si server running and at least one server configured.
 292     kerberos support.
 293    */
 294   function is_available()
 295   {
 296     $o = new gosaSupportDaemon(FALSE);
 297     if(count($this->server_list) && $o->connect()){
 298       return TRUE;
 299     }
 300     return(FALSE);
 301   }
 302
 303
 304   function generate_hash($pwd)
 305   {
 306     $mode= "kerberos";
 307     if (isset($this->config->current['KRBSASL']) && preg_match('/^true$/i', $this->config->current['KRBSASL'])){
 308       $mode= "sasl";
 309     }
 310     return "{".$mode."}".$this->attrs['uid'][0]."@".$this->goKrbRealm;
 311   }
 312
 313
 314   function remove_from_parent()
 315   {
 316     if(!empty($this->principal) && $this->goKrbRealm){
 317       $server = $this->map['REALM_SERVER'][$this->goKrbRealm];
 318       $o = new gosaSupportDaemon();
 319       if(!$o->krb5_del_principal($this->server_list[$server]['macAddress'],$this->principal)){
 320         $this->si_error     = TRUE;
 321         $this->si_error_msg = $o->get_error();
 322         msg_dialog::display(_("Service infrastructure"),msgPool::siError($o->get_error()),ERROR_DIALOG);
 323       }
 324     }
 325   }
 326
 327
 328   function set_password($password)
 329   {
 330     if(!empty($this->principal) && $this->goKrbRealm){
 331       $server = $this->map['REALM_SERVER'][$this->goKrbRealm];
 332       $o = new gosaSupportDaemon();
 333
 334       echo "Not implemented yet";
 335       $attrs = array("password" => $password);
 336
 337 #      if(!$o->krb5_set_principal($this->server_list[$server]['macAddress'],$this->principal,$attrs)){
 338 #        msg_dialog::display(_("Service infrastructure"),msgPool::siError($o->get_error()),ERROR_DIALOG);
 339 #      }
 340     }
 341   }
 342
 343
 344   function get_hash_name()
 345   {
 346     $mode= "kerberos";
 347     if (isset($this->config->current['KRBSASL']) && preg_match('/^true$/i', $this->config->current['KRBSASL'])){
 348       $mode= "sasl";
 349     }
 350     return "$mode";
 351   }
 352
 353
 354   function is_configurable()
 355   {
 356     return TRUE;
 357   }
 358
 359
 360   function configure()
 361   {
 362     $this->save_object();
 363
 364     $years = array();
 365     $start = date("Y")-1;
 366     for($i = $start; $i < ($start +20) ; $i++){
 367       $years[$i] = $i;
 368     }
 369     $month= array();
 370     for($i = 1; $i <= 12  ; $i++){
 371       $month[str_pad($i,2,"0",STR_PAD_LEFT)] = $i;
 372     }
 373     $days= array();
 374     for($i = 1; $i <= 31  ; $i++){
 375       $days[str_pad($i,2,"0",STR_PAD_LEFT)] = $i;
 376     }
 377     $hours= array();
 378     for($i = 0; $i <= 23  ; $i++){
 379       $hours[str_pad($i,2,"0",STR_PAD_LEFT)] = $i;
 380     }
 381     $minutes= array();
 382     for($i = 0; $i <= 59  ; $i++){
 383       $minutes[str_pad($i,2,"0",STR_PAD_LEFT)] = $i;
 384     }
 385
 386
 387     /* Cancel heimdal options */
 388     if (isset($_POST['pw_abort']) || $this->display == FALSE){
 389       $this->display = FALSE;
 390       return("");
 391     }
 392
 393     /* Cancel heimdal options */
 394     if (isset($_POST['pw_save'])){
 395       $msgs = $this->check();
 396       if(count($msgs)){
 397         foreach($msgs as $msg){
 398           msg_dialog::display(_("Heimdal"),$msg,WARNING_DIALOG);
 399         }
 400       }else{
 401         $this->display = FALSE;
 402         return "";
 403       }
 404     }
 405
 406
 407     $smarty = get_smarty();
 408
 409     $smarty->assign("si_error",$this->si_error);
 410     $smarty->assign("si_error_msg",$this->si_error_msg);
 411
 412     $smarty->assign("years",$years);
 413     $smarty->assign("month",$month);
 414     $smarty->assign("days",$days);
 415     $smarty->assign("hours",$hours);
 416     $smarty->assign("minutes",$minutes);
 417
 418     $smarty->assign("server_list",$this->server_list);
 419     $smarty->assign("POLICY"  ,$this->POLICY);
 420     $smarty->assign("goKrbRealm" , $this->goKrbRealm);
 421
 422     $server_name = $this->map['REALM_SERVER'][$this->goKrbRealm];
 423     $server_mac  = $this->server_list[$server_name]['macAddress'];
 424     $this->POLICIES = $this->load_policies_for_server($server_mac);
 425     $smarty->assign("POLICIES"  ,$this->POLICIES);
 426
 427     foreach($this->values as $attr){
 428       $smarty->assign($attr ,$this->$attr);
 429     }
 430     foreach($this->readonly as $attr){
 431       $smarty->assign($attr ,$this->$attr);
 432     }
 433     foreach($this->flags as $attr){
 434       $smarty->assign($attr,$this->$attr);
 435     }
 436
 437     $date_values = array("PRINC_EXPIRE_TIME","PW_EXPIRATION");
 438     foreach($date_values as $date_val){
 439       $clear = $date_val."_clear";
 440       $smarty->assign($date_val."_clear",$this->$clear);
 441       $smarty->assign($date_val."_y",substr($this->$date_val,0,4));
 442       $smarty->assign($date_val."_m",substr($this->$date_val,4,2));
 443       $smarty->assign($date_val."_d",substr($this->$date_val,6,2));
 444       $smarty->assign($date_val."_h",substr($this->$date_val,8,2));
 445       $smarty->assign($date_val."_i",substr($this->$date_val,10,2));
 446     }
 447
 448
 449     return($smarty->fetch(get_template_path("pwd_kerberos_mit.tpl")));
 450   }
 451
 452
 453   function save_object()
 454   {
 455     /* If the communication with the si server failed,
 456         you are able to retry to connect to the server.
 457        Here we hanlde those requests.
 458      */
 459     if(isset($_POST['retry_si'])){
 460       $this->si_error= FALSE;
 461       $this->si_error_msg= "";
 462       session::un_set("MIT_PRINCIPAL_CACHE");
 463       session::un_set("MIT_POLICY_CACHE");
 464       $this->__construct($this->config,$this->parent_dn);
 465     }
 466
 467     /* Only handle posts for this plugin, it its content was posted
 468      */
 469     if(isset($_POST['pwd_heimdal_posted'])){
 470
 471       if(isset($_POST['goKrbRealm'])){
 472         $this->goKrbRealm = get_post("goKrbRealm");
 473       }
 474
 475       foreach($this->flags as $attr){
 476         $this->$attr = isset($_POST[$attr]);
 477       }
 478
 479       foreach(array("MAX_LIFE","MAX_RENEWABLE_LIFE","POLICY") as $attr){
 480         if(isset($_POST[$attr])){
 481           $this->$attr = get_post($attr);
 482         }
 483       }
 484
 485       $date_values = array("PW_EXPIRATION","PRINC_EXPIRE_TIME");
 486       foreach($date_values as $date_value){
 487         $clear = $date_value."_clear";
 488         if(isset($_POST[$date_value."_clear"])){
 489           $this->$clear = TRUE;
 490         }else{
 491           $this->$clear = FALSE;
 492           $str = "";
 493           foreach(array("y","m","d","h","i") as $val){
 494             if(isset($_POST[$date_value."_".$val])){
 495               $str .= $_POST[$date_value."_".$val];
 496             }
 497           }
 498           $this->$date_value = $str."Z";
 499         }
 500       }
 501     }
 502   }
 503
 504   function check()
 505   {
 506     $message = array();
 507     echo "Checks missing";
 508     return($message);
 509   }
 510
 511
 512   function chk_times($str)
 513   {
 514     if(preg_match("/^([0-9]){12,12}[a-z]$/i",$str)){
 515       return(true);
 516     }
 517     return(false);
 518   }
 519
 520
 521   function save($dn)
 522   {
 523     $realm = $this->config->data['SERVERS']['KERBEROS']['REALM'];
 524
 525     $ldap = $this->config->get_ldap_link();
 526     $ldap->cd($dn);
 527     $ldap->cat($dn,array('uid'));
 528     $attrs = $ldap->fetch();
 529     if(isset($attrs['uid'][0])){
 530
 531       /* Get servers mac */
 532       $server_name = $this->map['REALM_SERVER'][$this->goKrbRealm];
 533       $server_mac  = $this->server_list[$server_name]['macAddress'];
 534
 535       $uid       = $attrs['uid'][0];
 536       $principal = $uid."@".strtoupper($this->goKrbRealm);
 537       $policy    = $this->POLICY;
 538
 539       /* Collect flags */
 540       $flags = array();
 541       $entry = array();
 542       foreach($this->flags as $flag){
 543         if($this->$flag){
 544           $flags[] = $flag;
 545         }
 546       }
 547       if(count($flags)){
 548         $entry['ATTRIBUTES'] = $flags;
 549       }
 550
 551       /* Append other values */
 552       foreach($this->values as $attr){
 553         if($attr == "POLICY") continue;
 554         $entry[$attr] = $this->$attr;
 555       }
 556
 557       /* Prepare entry to be saved */
 558       if($policy != "_none_"){
 559         $entry['POLICY'] = $policy;
 560       }
 561
 562       /* Save principal changes */
 563       $o = new gosaSupportDaemon();
 564       if($this->is_new){
 565         $o->krb5_add_principal($server_mac,$principal,$entry);
 566       }else{
 567         $o->krb5_set_principal($server_mac,$principal,$entry);
 568       }
 569       if($o->is_error()){
 570         $this->si_error     = TRUE;
 571         $this->si_error_msg = $o->get_error();
 572         msg_dialog::display(_("Service infrastructure"),msgPool::siError($o->get_error()),ERROR_DIALOG);
 573       }
 574     }
 575   }
 576 }
 577 // vim:tabstop=2:expandtab:shiftwidth=2:filetype=php:syntax:ruler:
 578 ?>