8268e57b57eb80f9d58a2f5cc330be58fa7c77ff
1 <?php
2 /*
3 This code is part of GOsa (https://gosa.gonicus.de)
4 Copyright (C) 2003-2005 Cajus Pollmeier
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.
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.
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 */
21 class userinfo
22 {
23 var $dn;
24 var $ip;
25 var $username;
26 var $cn;
27 var $uid;
28 var $gidNumber= -1;
29 var $language= "";
30 var $config;
31 var $gosaUnitTag= "";
32 var $subtreeACL= array();
33 var $ACL= array();
34 var $ocMapping= array();
35 var $groups= array();
36 var $result_cache =array();
38 /* get acl's an put them into the userinfo object
39 attr subtreeACL (userdn:components, userdn:component1#sub1#sub2,component2,...) */
40 function userinfo($config, $userdn){
41 $this->config= $config;
42 $ldap= $this->config->get_ldap_link();
43 $ldap->cat($userdn,array('sn', 'givenName', 'uid', 'gidNumber', 'preferredLanguage', 'gosaUnitTag'));
44 $attrs= $ldap->fetch();
46 if (isset($attrs['givenName'][0]) && isset($attrs['sn'][0])){
47 $this->cn= $attrs['givenName'][0]." ".$attrs['sn'][0];
48 } else {
49 $this->cn= $attrs['uid'][0];
50 }
51 if (isset($attrs['gidNumber'][0])){
52 $this->gidNumber= $attrs['gidNumber'][0];
53 }
55 /* Assign user language */
56 if (isset($attrs['preferredLanguage'][0])){
57 $this->language= $attrs['preferredLanguage'][0];
58 }
60 if (isset($attrs['gosaUnitTag'][0])){
61 $this->gosaUnitTag= $attrs['gosaUnitTag'][0];
62 }
64 $this->dn= $userdn;
65 $this->uid= $attrs['uid'][0];
66 $this->ip= $_SERVER['REMOTE_ADDR'];
67 }
70 function loadACL()
71 {
72 $this->ACL= array();
73 $this->groups= array();
74 $this->result_cache =array();
75 $ldap= $this->config->get_ldap_link();
76 $ldap->cd($this->config->current['BASE']);
78 /* Get member groups... */
79 $ldap->search("(&(objectClass=posixGroup)(memberUid=".$this->uid."))", array('dn'));
80 while ($attrs= $ldap->fetch()){
81 $this->groups[$attrs['dn']]= $attrs['dn'];
82 }
84 /* Crawl through ACLs and move relevant to the tree */
85 $ldap->search("(objectClass=gosaACL)", array('dn', 'gosaAclEntry'));
86 $aclp= array();
87 $aclc= array();
88 while ($attrs= $ldap->fetch()){
90 /* Insert links in ACL array */
91 $aclp[$attrs['dn']]= substr_count($attrs['dn'], ',');
92 $aclc[$attrs['dn']]= array();
93 $ol= array();
94 for($i= 0; $i<$attrs['gosaAclEntry']['count']; $i++){
95 $ol= array_merge($ol, @acl::explodeAcl($attrs['gosaAclEntry'][$i]));
96 }
97 $aclc[$attrs['dn']]= $ol;
98 }
100 /* Resolve roles here.
101 */
102 foreach($aclc as $dn => $data){
103 foreach($data as $prio => $aclc_value) {
104 if($aclc_value['type'] == "role"){
106 unset($aclc[$dn][$prio]);
108 $ldap->cat($aclc_value['acl'],array("gosaAclTemplate"));
109 $attrs = $ldap->fetch();
110 for($i= 0; $i<$attrs['gosaAclTemplate']['count']; $i++){
111 $tmp = @acl::explodeAcl($attrs['gosaAclTemplate'][$i]);
113 foreach($tmp as $new_acl){
114 $new_acl['members'] = $aclc_value['members'];
115 $aclc[$dn][] =$new_acl;
116 }
117 }
118 }
119 }
120 }
122 /* ACL's read, sort for tree depth */
123 asort($aclp);
125 /* Sort in tree order */
126 foreach ($aclp as $dn => $acl){
127 /* Check if we need to keep this ACL */
128 foreach($aclc[$dn] as $idx => $type){
129 $interresting= FALSE;
131 /* No members? This is good for all users... */
132 if (!count($type['members'])){
133 $interresting= TRUE;
134 } else {
136 /* Inspect members... */
137 foreach ($type['members'] as $grp => $grpdsc){
138 /* Some group inside the members that is relevant for us? */
139 if (in_array_ics(preg_replace('/^G:/', '', $grp), $this->groups)){
140 $interresting= TRUE;
141 }
143 /* User inside the members? */
144 if (preg_replace('/^U:/', '', $grp) == $this->dn){
145 $interresting= TRUE;
146 }
147 }
148 }
150 if ($interresting){
151 if (!isset($this->ACL[$dn])){
152 $this->ACL[$dn]= array();
153 }
154 $this->ACL[$dn][$idx]= $type;
155 }
156 }
158 }
159 }
162 function get_category_permissions($dn, $category)
163 {
164 /* Get list of objectClasses and get the permissions for it */
165 $acl= "";
166 if (isset($this->ocMapping[$category])){
167 foreach($this->ocMapping[$category] as $oc){
168 $acl.= $this->get_permissions($dn, $category."/".$oc);
169 }
170 }
172 return ($acl);
173 }
176 function get_permissions($dn, $object, $attribute= "", $skip_write= FALSE)
177 {
178 $acl= array("r" => "", "w" => "", "c" => "", "d" => "", "m" => "", "a" => "");
180 /* Build dn array */
181 $path= split(',', $dn);
182 $path= array_reverse($path);
184 /* Walk along the path to evaluate the acl */
185 $cpath= "";
186 foreach ($path as $element){
188 /* Clean potential ACLs for each level */
189 $acl= $this->cleanACL($acl);
191 if ($cpath == ""){
192 $cpath= $element;
193 } else {
194 $cpath= $element.','.$cpath;
195 }
196 if (isset($this->ACL[$cpath])){
198 /* Inspect this ACL, place the result into ACL */
199 foreach ($this->ACL[$cpath] as $subacl){
201 /* Reset? Just clean the ACL and turn over to the next one... */
202 if ($subacl['type'] == 'reset'){
203 $acl= $this->cleanACL($acl, TRUE);
204 continue;
205 }
207 if($subacl['type'] == "role") {
208 echo "role skipped";
209 continue;
210 }
212 /* Per attribute ACL? */
213 if (isset($subacl['acl'][$object][$attribute])){
214 $acl= $this->mergeACL($acl, $subacl['type'], $subacl['acl'][$object][$attribute]);
215 continue;
216 }
218 /* Per object ACL? */
219 if (isset($subacl['acl'][$object][0])){
220 $acl= $this->mergeACL($acl, $subacl['type'], $subacl['acl'][$object][0]);
221 continue;
222 }
224 /* Global ACL? */
225 if (isset($subacl['acl']['all'][0])){
226 $acl= $this->mergeACL($acl, $subacl['type'], $subacl['acl']['all'][0]);
227 continue;
228 }
230 /* If attribute is "", we want to know, if we've *any* permissions here... */
231 if ($attribute == "" && isset($subacl['acl'][$object])){
232 foreach($subacl['acl'][$object] as $attr => $dummy){
233 $acl= $this->mergeACL($acl, $subacl['type'], $subacl['acl'][$object][$attr]);
234 }
235 continue;
236 }
238 }
239 }
240 }
242 /* Assemble string */
243 $ret= "";
244 foreach ($acl as $key => $value){
245 if ($value != ""){
246 $ret.= $key;
247 }
248 }
250 /* Remove write if needed */
251 if ($skip_write){
252 $ret= preg_replace('/w/', '', $ret);
253 }
255 return ($ret);
256 }
259 /* Extract all departments that are accessible (direct or 'on the way' to an
260 accessible department) */
261 function get_module_departments($module)
262 {
263 global $plist;
265 $objects= array();
266 $deps= array();
268 /* Extract all relevant objects for this module from plist */
269 foreach ($plist->info as $object => $info){
270 if (!isset($info['plCategory'])){
271 continue;
272 }
273 foreach ($info['plCategory'] as $idx => $data){
274 if (preg_match('/^[0-9]+$/', $idx)){
275 if ($data == $module){
276 $objects[$object]= $object;
277 }
278 } else {
279 if ($idx == $module){
280 $objects[$object]= $object;
281 }
282 }
283 }
284 }
286 /* For all gosaDepartments */
287 foreach ($this->config->departments as $dn){
288 $acl= array("r" => "", "w" => "", "c" => "", "d" => "", "m" => "", "a" => "");
290 /* Build dn array */
291 $path= split(',', $dn);
292 $path= array_reverse($path);
294 /* Walk along the path to evaluate the acl */
295 $cpath= "";
296 foreach ($path as $element){
298 /* Clean potential ACLs for each level */
299 $acl= $this->cleanACL($acl);
301 if ($cpath == ""){
302 $cpath= $element;
303 } else {
304 $cpath= $element.','.$cpath;
305 }
306 if (isset($this->ACL[$cpath])){
308 /* Inspect this ACL, place the result into ACL */
309 foreach ($this->ACL[$cpath] as $subacl){
311 /* Reset? Just clean the ACL and turn over to the next one... */
312 if ($subacl['type'] == 'reset'){
313 $acl= $this->cleanACL($acl, TRUE);
314 continue;
315 }
317 if($subacl['type'] == 'role'){
318 echo "role skipped";
319 continue;
320 }
322 /* Per object ACL? */
323 foreach ($objects as $object){
324 if (isset($subacl['acl']["$module/$object"])){
325 foreach($subacl['acl']["$module/$object"] as $attribute => $dcl){
326 $acl= $this->mergeACL($acl, $subacl['type'], $subacl['acl']["$module/$object"][$attribute]);
327 }
328 }
329 }
331 /* Global ACL? */
332 if (isset($subacl['acl']["$module/all"][0])){
333 $acl= $this->mergeACL($acl, $subacl['type'], $subacl['acl']["$module/all"][0]);
334 continue;
335 }
337 /* Global ACL? */
338 if (isset($subacl['acl']["all"][0])){
339 $acl= $this->mergeACL($acl, $subacl['type'], $subacl['acl']["all"][0]);
340 continue;
341 }
342 }
343 }
344 }
346 /* Add department, if we have (some) permissions for the required module */
347 foreach ($acl as $val){
348 if ($val != ""){
349 $deps[]= $dn;
350 break;
351 }
352 }
353 }
355 return ($deps);
356 }
359 function mergeACL($acl, $type, $newACL)
360 {
361 if(preg_match("/w/",$newACL) && !preg_match("/r/",$newACL)){
362 $newACL .= "r";
363 }
364 foreach(str_split($newACL) as $char){
366 /* Ignore invalid characters */
367 if (!preg_match('/[rwcdm]/', $char)){
368 continue;
369 }
371 /* Skip permanent and subtree entries */
372 if (preg_match('/[sp]/', $acl[$char])){
373 continue;
374 }
376 switch ($type){
377 case 'psub':
378 $acl[$char]= 'p';
379 break;
381 case 'sub':
382 $acl[$char]= 's';
383 break;
385 case 'one':
386 $acl[$char]= 1;
387 break;
389 case 'base':
390 if ($acl[$char] != 1){
391 $acl[$char]= 0;
392 }
393 break;
394 }
395 }
397 return ($acl);
398 }
401 function cleanACL($acl, $reset= FALSE)
402 {
403 foreach ($acl as $key => $value){
405 /* Reset removes everything but 'p' */
406 if ($reset && $value != 'p'){
407 $acl[$key]= "";
408 continue;
409 }
411 /* Decrease tree level */
412 if (preg_match('/^[0-9]+$/', $value)){
413 if ($value > 0){
414 $acl[$key]= $value - 1;
415 } else {
416 $acl[$key]= "";
417 }
418 }
419 }
421 return ($acl);
422 }
425 /* #FIXME This could be logical wrong or could be optimized in the future
426 Return combined acls for a given category.
427 All acls will be combined like boolean AND
428 As example ('rwcdm' + 'rcd' + 'wrm'= 'r')
430 Results will be cached in $this->result_cache.
431 $this->result_cache will be resetted if load_acls is called.
432 */
433 function has_complete_category_acls($dn,$category)
434 {
435 $acl = "rwcdm";
436 $types = "rwcdm";
439 if(!is_string($category)){
440 trigger_error("category must be string");
441 $acl = "";
442 }else{
443 if(!isset($this->result_cache['has_complete_category_acls'][$dn][$category])) {
444 if (isset($this->ocMapping[$category])){
445 foreach($this->ocMapping[$category] as $oc){
447 /* Skip objectClass '0' (e.g. users/0) get_permissions will ever return '' ?? */
448 if($oc == "0") continue;
449 $tmp = $this->get_permissions($dn, $category."/".$oc);
450 for($i = 0 ; $i < strlen($types); $i++) {
451 if(!preg_match("/".$types[$i]."/",$tmp)){
452 $acl = preg_replace("/".$types[$i]."/","",$acl);
453 }
454 }
455 }
456 }else{
457 trigger_error("Invalid type of category ".$category);
458 $acl = "";
459 }
460 $this->result_cache['has_complete_category_acls'][$dn][$category] = $acl;
461 }else{
462 $acl = $this->result_cache['has_complete_category_acls'][$dn][$category];
463 }
464 }
465 return($acl);
466 }
467 }
469 // vim:tabstop=2:expandtab:shiftwidth=2:filetype=php:syntax:ruler:
470 ?>