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       /* Create Server list
 140        */
 141       $this->server_list[$attrs['cn'][0]] = array("macAddress" => $attrs['macAddress'][0],
 142           "description"=> $attrs['description'][0],
 143           "dn"         => $attrs['dn'],
 144           "principals" => $principals,
 145           "goKrbRealm" => $attrs['goKrbRealm'][0],
 146           "cn"         => $attrs['cn'][0]);
 147     }
 148
 149     /* Load object data from ldap && initialize this class
 150      */
 151     $this->is_new = TRUE;
 152     if($dn != "new" && $dn != ""){
 153       $ldap = $this->config->get_ldap_link();
 154       $ldap->cd($dn);
 155       $ldap->cat($dn);
 156       $this->attrs = $ldap->fetch();
 157       if(isset($this->attrs['userPassword'])){
 158
 159         $p_name = preg_replace("/^\{".$this->get_hash_name()."\}/","",$this->attrs['userPassword'][0]);
 160
 161         /* Try to detect server our principal is configured on
 162          */
 163         if($this->map['PRINCIPAL_SERVER'][$p_name]){
 164           $server= $this->map['PRINCIPAL_SERVER'][$p_name];
 165           $this->goKrbRealm = $this->map['SERVER_REALM'][$server];
 166           $this->principal  = $p_name;
 167
 168           /* Load policies */
 169           $server_name = $this->map['REALM_SERVER'][$this->goKrbRealm];
 170           $server_mac  = $this->server_list[$server_name]['macAddress'];
 171           $this->POLICIES = $this->load_policies_for_server($server_mac);
 172
 173           /* Load principal */
 174           $this->load_principal($this->server_list[$server]['macAddress'],$p_name);
 175           $this->is_new = FALSE;
 176         }
 177       }
 178     }
 179   }
 180
 181
 182   /*! \brief  Load this plugin with the values of the given principal
 183     @param  String  The macAddress of the kerberos server.
 184     @param  String  The name of the principal to load.
 185    */
 186   public function load_principal($server,$name)
 187   {
 188     $o = new gosaSupportDaemon();
 189     $tmp = array();
 190     $tmp = $o->krb5_get_principal($server,$name);
 191     if($o->is_error()){
 192
 193       $this->si_error     = TRUE;
 194       $this->si_error_msg = $o->get_error();
 195       msg_dialog::display(_("Service infrastructure"),msgPool::siError($o->get_error()),ERROR_DIALOG);
 196     }else{
 197
 198       /* Load flags
 199        */
 200       if(isset($tmp['ATTRIBUTES'])){
 201         foreach($this->flags as $flag){
 202           if(in_array($flag,$tmp['ATTRIBUTES'])){
 203             $this->$flag = TRUE;
 204           }
 205         }
 206       }
 207
 208       /* Load readonly attributes
 209        */
 210       foreach($this->readonly as $attr){
 211         if(isset($tmp[$attr])){
 212           $this->$flag = $tmp[$attr];
 213         }
 214       }
 215
 216       /* Load modifyable attributes
 217        */
 218       foreach($this->values as $attr){
 219         if(isset($tmp[$attr])){
 220           $this->$flag = $tmp[$attr];
 221         }
 222       }
 223     }
 224   }
 225
 226
 227   /*! \brief get list of all configured principals
 228     for a given server.
 229     The results will cached.
 230    */
 231   public function load_principals_for_server($server)
 232   {
 233     if(!session::is_set("MIT_PRINCIPAL_CACHE")){
 234       session::set("MIT_PRINCIPAL_CACHE",array());
 235     }
 236     $cache = session::get("MIT_PRINCIPAL_CACHE");
 237     if(!isset($cache[$server])){
 238       $o = new gosaSupportDaemon();
 239       $tmp = $o->krb5_list_principals($server);
 240       if($o->is_error()){
 241         $this->si_error     = TRUE;
 242         $this->si_error_msg = $o->get_error();
 243         msg_dialog::display(_("Service infrastructure"),msgPool::siError($o->get_error()),ERROR_DIALOG);
 244       }else{
 245         $cache[$server] = $tmp;
 246       }
 247       session::set("MIT_PRINCIPAL_CACHE",$cache);
 248     }
 249     return($cache[$server]);
 250   }
 251
 252
 253   /*! \brief get list of all configured policies
 254     for a given server.
 255     The results will cached.
 256    */
 257   public function load_policies_for_server($server)
 258   {
 259     if(!session::is_set("MIT_POLICY_CACHE")){
 260       session::set("MIT_POLICY_CACHE",array());
 261     }
 262     $cache = session::get("MIT_POLICY_CACHE");
 263     if(!isset($cache[$server])){
 264       $o = new gosaSupportDaemon();
 265       $tmp = $o->krb5_list_policies($server);
 266       if($o->is_error()){
 267         $this->si_error     = TRUE;
 268         $this->si_error_msg = $o->get_error();
 269         msg_dialog::display(_("Service infrastructure"),msgPool::siError($o->get_error()),ERROR_DIALOG);
 270       }else{
 271         $cache[$server] = array();
 272         $cache[$server]["_none_"] = _("none");
 273         foreach($tmp as $policy){
 274           $cache[$server][$policy] = $policy;
 275         }
 276         ksort($cache[$server]);
 277       }
 278       session::set("MIT_POLICY_CACHE",$cache);
 279     }
 280     return($cache[$server]);
 281   }
 282
 283
 284   /*! \brief Check if this password method is useable.
 285     This is the case if there is a si server running and at least one server configured.
 286     kerberos support.
 287    */
 288   function is_available()
 289   {
 290     $o = new gosaSupportDaemon(FALSE);
 291     if(count($this->server_list) && $o->connect()){
 292       return TRUE;
 293     }
 294     return(FALSE);
 295   }
 296
 297
 298   function generate_hash($pwd)
 299   {
 300     $mode= "kerberos";
 301     if (isset($this->config->current['KRBSASL']) && preg_match('/^true$/i', $this->config->current['KRBSASL'])){
 302       $mode= "sasl";
 303     }
 304     return "{".$mode."}".$this->attrs['uid'][0]."@".$this->goKrbRealm;
 305   }
 306
 307
 308   function remove_from_parent()
 309   {
 310     if(!empty($this->principal) && $this->goKrbRealm){
 311       $server = $this->map['REALM_SERVER'][$this->goKrbRealm];
 312       $o = new gosaSupportDaemon();
 313       if(!$o->krb5_del_principal($this->server_list[$server]['macAddress'],$this->principal)){
 314         $this->si_error     = TRUE;
 315         $this->si_error_msg = $o->get_error();
 316         msg_dialog::display(_("Service infrastructure"),msgPool::siError($o->get_error()),ERROR_DIALOG);
 317       }
 318     }
 319   }
 320
 321
 322   function set_password($password)
 323   {
 324     if(!empty($this->principal) && $this->goKrbRealm){
 325       $server = $this->map['REALM_SERVER'][$this->goKrbRealm];
 326       $o = new gosaSupportDaemon();
 327
 328       echo "Not implemented yet";
 329       $attrs = array("password" => $password);
 330
 331 #      if(!$o->krb5_set_principal($this->server_list[$server]['macAddress'],$this->principal,$attrs)){
 332 #        msg_dialog::display(_("Service infrastructure"),msgPool::siError($o->get_error()),ERROR_DIALOG);
 333 #      }
 334     }
 335   }
 336
 337
 338   function get_hash_name()
 339   {
 340     $mode= "kerberos";
 341     if (isset($this->config->current['KRBSASL']) && preg_match('/^true$/i', $this->config->current['KRBSASL'])){
 342       $mode= "sasl";
 343     }
 344     return "$mode";
 345   }
 346
 347
 348   function is_configurable()
 349   {
 350     return TRUE;
 351   }
 352
 353
 354   function configure()
 355   {
 356     $this->save_object();
 357
 358     $years = array();
 359     $start = date("Y")-1;
 360     for($i = $start; $i < ($start +20) ; $i++){
 361       $years[$i] = $i;
 362     }
 363     $month= array();
 364     for($i = 1; $i <= 12  ; $i++){
 365       $month[str_pad($i,2,"0",STR_PAD_LEFT)] = $i;
 366     }
 367     $days= array();
 368     for($i = 1; $i <= 31  ; $i++){
 369       $days[str_pad($i,2,"0",STR_PAD_LEFT)] = $i;
 370     }
 371     $hours= array();
 372     for($i = 0; $i <= 23  ; $i++){
 373       $hours[str_pad($i,2,"0",STR_PAD_LEFT)] = $i;
 374     }
 375     $minutes= array();
 376     for($i = 0; $i <= 59  ; $i++){
 377       $minutes[str_pad($i,2,"0",STR_PAD_LEFT)] = $i;
 378     }
 379
 380
 381     /* Cancel heimdal options */
 382     if (isset($_POST['pw_abort']) || $this->display == FALSE){
 383       $this->display = FALSE;
 384       return("");
 385     }
 386
 387     /* Cancel heimdal options */
 388     if (isset($_POST['pw_save'])){
 389       $msgs = $this->check();
 390       if(count($msgs)){
 391         foreach($msgs as $msg){
 392           msg_dialog::display(_("Heimdal"),$msg,WARNING_DIALOG);
 393         }
 394       }else{
 395         $this->display = FALSE;
 396         return "";
 397       }
 398     }
 399
 400
 401     $smarty = get_smarty();
 402
 403     $smarty->assign("si_error",$this->si_error);
 404     $smarty->assign("si_error_msg",$this->si_error_msg);
 405
 406     $smarty->assign("years",$years);
 407     $smarty->assign("month",$month);
 408     $smarty->assign("days",$days);
 409     $smarty->assign("hours",$hours);
 410     $smarty->assign("minutes",$minutes);
 411
 412     $smarty->assign("server_list",$this->server_list);
 413     $smarty->assign("POLICY"  ,$this->POLICY);
 414     $smarty->assign("goKrbRealm" , $this->goKrbRealm);
 415
 416     $server_name = $this->map['REALM_SERVER'][$this->goKrbRealm];
 417     $server_mac  = $this->server_list[$server_name]['macAddress'];
 418     $this->POLICIES = $this->load_policies_for_server($server_mac);
 419     $smarty->assign("POLICIES"  ,$this->POLICIES);
 420
 421     foreach($this->values as $attr){
 422       $smarty->assign($attr ,$this->$attr);
 423     }
 424     foreach($this->readonly as $attr){
 425       $smarty->assign($attr ,$this->$attr);
 426     }
 427     foreach($this->flags as $attr){
 428       $smarty->assign($attr,$this->$attr);
 429     }
 430
 431     $date_values = array("PRINC_EXPIRE_TIME","PW_EXPIRATION");
 432     foreach($date_values as $date_val){
 433       $clear = $date_val."_clear";
 434       $smarty->assign($date_val."_clear",$this->$clear);
 435       $smarty->assign($date_val."_y",substr($this->$date_val,0,4));
 436       $smarty->assign($date_val."_m",substr($this->$date_val,4,2));
 437       $smarty->assign($date_val."_d",substr($this->$date_val,6,2));
 438       $smarty->assign($date_val."_h",substr($this->$date_val,8,2));
 439       $smarty->assign($date_val."_i",substr($this->$date_val,10,2));
 440     }
 441
 442
 443     return($smarty->fetch(get_template_path("pwd_kerberos_mit.tpl")));
 444   }
 445
 446
 447   function save_object()
 448   {
 449     /* If the communication with the si server failed,
 450         you are able to retry to connect to the server.
 451        Here we hanlde those requests.
 452      */
 453     if(isset($_POST['retry_si'])){
 454       $this->si_error= FALSE;
 455       $this->si_error_msg= "";
 456       session::un_set("MIT_PRINCIPAL_CACHE");
 457       session::un_set("MIT_POLICY_CACHE");
 458       $this->__construct($this->config,$this->parent_dn);
 459     }
 460
 461     /* Only handle posts for this plugin, it its content was posted
 462      */
 463     if(isset($_POST['pwd_heimdal_posted'])){
 464
 465       if(isset($_POST['goKrbRealm'])){
 466         $this->goKrbRealm = get_post("goKrbRealm");
 467       }
 468
 469       foreach($this->flags as $attr){
 470         $this->$attr = isset($_POST[$attr]);
 471       }
 472
 473       foreach(array("MAX_LIFE","MAX_RENEWABLE_LIFE","POLICY") as $attr){
 474         if(isset($_POST[$attr])){
 475           $this->$attr = get_post($attr);
 476         }
 477       }
 478
 479       $date_values = array("PW_EXPIRATION","PRINC_EXPIRE_TIME");
 480       foreach($date_values as $date_value){
 481         $clear = $date_value."_clear";
 482         if(isset($_POST[$date_value."_clear"])){
 483           $this->$clear = TRUE;
 484         }else{
 485           $this->$clear = FALSE;
 486           $str = "";
 487           foreach(array("y","m","d","h","i") as $val){
 488             if(isset($_POST[$date_value."_".$val])){
 489               $str .= $_POST[$date_value."_".$val];
 490             }
 491           }
 492           $this->$date_value = $str."Z";
 493         }
 494       }
 495     }
 496   }
 497
 498   function check()
 499   {
 500     $message = array();
 501     echo "Checks missing";
 502     return($message);
 503   }
 504
 505
 506   function chk_times($str)
 507   {
 508     if(preg_match("/^([0-9]){12,12}[a-z]$/i",$str)){
 509       return(true);
 510     }
 511     return(false);
 512   }
 513
 514
 515   function save($dn)
 516   {
 517     $realm = $this->config->data['SERVERS']['KERBEROS']['REALM'];
 518
 519     $ldap = $this->config->get_ldap_link();
 520     $ldap->cd($dn);
 521     $ldap->cat($dn,array('uid'));
 522     $attrs = $ldap->fetch();
 523     if(isset($attrs['uid'][0])){
 524
 525       /* Get servers mac */
 526       $server_name = $this->map['REALM_SERVER'][$this->goKrbRealm];
 527       $server_mac  = $this->server_list[$server_name]['macAddress'];
 528
 529       $uid       = $attrs['uid'][0];
 530       $principal = $uid."@".strtoupper($this->goKrbRealm);
 531       $policy    = $this->POLICY;
 532
 533       /* Collect flags */
 534       $flags = array();
 535       $entry = array();
 536       foreach($this->flags as $flag){
 537         if($this->$flag){
 538           $flags[] = $flag;
 539         }
 540       }
 541       if(count($flags)){
 542         $entry['ATTRIBUTES'] = $flags;
 543       }
 544
 545       /* Append other values */
 546       foreach($this->values as $attr){
 547         if($attr == "POLICY") continue;
 548         $entry[$attr] = $this->$attr;
 549       }
 550
 551       /* Prepare entry to be saved */
 552       if($policy != "_none_"){
 553         $entry['POLICY'] = $policy;
 554       }
 555
 556       /* Save principal changes */
 557       $o = new gosaSupportDaemon();
 558       if($this->is_new){
 559         $o->krb5_add_principal($server_mac,$principal,$entry);
 560       }else{
 561         $o->krb5_set_principal($server_mac,$principal,$entry);
 562       }
 563       if($o->is_error()){
 564         $this->si_error     = TRUE;
 565         $this->si_error_msg = $o->get_error();
 566         msg_dialog::display(_("Service infrastructure"),msgPool::siError($o->get_error()),ERROR_DIALOG);
 567       }
 568     }
 569   }
 570 }
 571 // vim:tabstop=2:expandtab:shiftwidth=2:filetype=php:syntax:ruler:
 572 ?>