![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/branches/old/gosa-core/include/class_userinfo.inc b/branches/old/gosa-core/include/class_userinfo.inc
--- /dev/null
@@ -0,0 +1,629 @@
+<?php
+/*
+ * This code is part of GOsa (http://www.gosa-project.org)
+ * Copyright (C) 2003-2008 GONICUS GmbH
+ *
+ * ID: $$Id$$
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+class userinfo
+{
+ var $dn;
+ var $ip;
+ var $username;
+ var $cn;
+ var $uid;
+ var $gidNumber= -1;
+ var $language= "";
+ var $config;
+ var $gosaUnitTag= "";
+ var $subtreeACL= array();
+ var $ACL= array();
+ var $ocMapping= array();
+ var $groups= array();
+ var $result_cache =array();
+ var $ignoreACL = FALSE;
+
+ /* get acl's an put them into the userinfo object
+ attr subtreeACL (userdn:components, userdn:component1#sub1#sub2,component2,...) */
+ function userinfo(&$config, $userdn){
+ $this->config= &$config;
+ $ldap= $this->config->get_ldap_link();
+ $ldap->cat($userdn,array('sn', 'givenName', 'uid', 'gidNumber', 'preferredLanguage', 'gosaUnitTag'));
+ $attrs= $ldap->fetch();
+
+ if (isset($attrs['givenName'][0]) && isset($attrs['sn'][0])){
+ $this->cn= $attrs['givenName'][0]." ".$attrs['sn'][0];
+ } else {
+ $this->cn= $attrs['uid'][0];
+ }
+ if (isset($attrs['gidNumber'][0])){
+ $this->gidNumber= $attrs['gidNumber'][0];
+ }
+
+ /* Assign user language */
+ if (isset($attrs['preferredLanguage'][0])){
+ $this->language= $attrs['preferredLanguage'][0];
+ }
+
+ if (isset($attrs['gosaUnitTag'][0])){
+ $this->gosaUnitTag= $attrs['gosaUnitTag'][0];
+ }
+
+ $this->dn= $userdn;
+ $this->uid= $attrs['uid'][0];
+ $this->ip= $_SERVER['REMOTE_ADDR'];
+
+ $this->ignoreACL = ($this->config->get_cfg_value("ignoreAcl") == $this->dn);
+
+ /* Initialize ACL_CACHE */
+ $this->reset_acl_cache();
+ }
+
+
+ public function reset_acl_cache()
+ {
+ /* Initialize ACL_CACHE */
+ session::set('ACL_CACHE',array());
+ }
+
+ function loadACL()
+ {
+ $this->ACL= array();
+ $this->groups= array();
+ $this->result_cache =array();
+ $this->reset_acl_cache();
+ $ldap= $this->config->get_ldap_link();
+ $ldap->cd($this->config->current['BASE']);
+
+ /* Get member groups... */
+ $ldap->search("(&(objectClass=posixGroup)(memberUid=".$this->uid."))", array('dn'));
+ while ($attrs= $ldap->fetch()){
+ $this->groups[$attrs['dn']]= $attrs['dn'];
+ }
+
+ /* Crawl through ACLs and move relevant to the tree */
+ $ldap->search("(objectClass=gosaACL)", array('dn', 'gosaAclEntry'));
+ $aclp= array();
+ $aclc= array();
+ while ($attrs= $ldap->fetch()){
+
+ /* Insert links in ACL array */
+ $aclp[$attrs['dn']]= substr_count($attrs['dn'], ',');
+ $aclc[$attrs['dn']]= array();
+ $ol= array();
+ for($i= 0; $i<$attrs['gosaAclEntry']['count']; $i++){
+ $ol= array_merge($ol, @acl::explodeAcl($attrs['gosaAclEntry'][$i]));
+ }
+ $aclc[$attrs['dn']]= $ol;
+ }
+
+ /* Resolve roles here.
+ */
+ foreach($aclc as $dn => $data){
+ foreach($data as $prio => $aclc_value) {
+ if($aclc_value['type'] == "role"){
+
+ unset($aclc[$dn][$prio]);
+
+ $ldap->cat($aclc_value['acl'],array("gosaAclTemplate"));
+ $attrs = $ldap->fetch();
+
+ if(isset($attrs['gosaAclTemplate'])){
+ for($i= 0; $i<$attrs['gosaAclTemplate']['count']; $i++){
+ $tmp = @acl::explodeAcl($attrs['gosaAclTemplate'][$i]);
+
+ foreach($tmp as $new_acl){
+
+ /* Keep non role attributes here! */
+ $new_acl['filter'] = $aclc_value['filter'];
+ $new_acl['members'] = $aclc_value['members'];
+ $aclc[$dn][] =$new_acl;
+ }
+ }
+ }
+ }
+ }
+ }
+
+ /* ACL's read, sort for tree depth */
+ asort($aclp);
+
+ /* Sort in tree order */
+ foreach ($aclp as $dn => $acl){
+ /* Check if we need to keep this ACL */
+ foreach($aclc[$dn] as $idx => $type){
+ $interresting= FALSE;
+
+ /* No members? This is good for all users... */
+ if (!count($type['members'])){
+ $interresting= TRUE;
+ } else {
+
+ /* Inspect members... */
+ foreach ($type['members'] as $grp => $grpdsc){
+ /* Some group inside the members that is relevant for us? */
+ if (in_array_ics(@LDAP::convert(preg_replace('/^G:/', '', $grp)), $this->groups)){
+ $interresting= TRUE;
+ }
+
+ /* User inside the members? */
+ if (preg_replace('/^U:/', '', $grp) == $this->dn){
+ $interresting= TRUE;
+ }
+ }
+ }
+
+ if ($interresting){
+ if (!isset($this->ACL[$dn])){
+ $this->ACL[$dn]= array();
+ }
+ $this->ACL[$dn][$idx]= $type;
+ }
+ }
+
+ }
+ }
+
+
+ function get_category_permissions($dn, $category, $any_acl = FALSE)
+ {
+ /* If we are forced to skip ACLs checks for the current user
+ then return all permissions.
+ */
+ if($this->ignore_acl_for_current_user()){
+ return("rwcdm");
+ }
+
+ /* Ensure that we only cache relevant ACL settings
+ */
+# while(!isset($this->ACL[$dn]) && preg_match("/,/",$dn)){
+# $dn = preg_replace("/^[^,]*+,/","",$dn);
+# }
+
+ $ACL_CACHE = &session::get("ACL_CACHE");
+ $id = $dn."+".$category."+".$any_acl;
+ if(isset($ACL_CACHE['CATEGORY_ACL'][$id])){
+ return($ACL_CACHE['CATEGORY_ACL'][$id]);
+ }
+
+
+ /* Get list of objectClasses and get the permissions for it */
+ $acl= "";
+ if (isset($this->ocMapping[$category])){
+ foreach($this->ocMapping[$category] as $oc){
+ $acl.= $this->get_permissions($dn, $category."/".$oc);
+ if($any_acl && !empty($acl)){
+ break;
+ }
+ }
+ }else{
+ trigger_error("ACL request for an invalid category (".$category.").");
+ }
+ $ACL_CACHE = &session::get("ACL_CACHE");
+ $ACL_CACHE['CATEGORY_ACL'][$id] = $acl;
+ return ($acl);
+ }
+
+
+ /*! \brief Check if the given object (dn) is copyable
+ @param String The object dn
+ @param String The acl category (e.g. users)
+ @param String The acl class (e.g. user)
+ @return Boolean TRUE if the given object is copyable else FALSE
+ */
+ function is_copyable($dn, $object, $class)
+ {
+ return(preg_match("/r/",$this->has_complete_category_acls($dn, $object)));
+ }
+
+
+ /*! \brief Check if the given object (dn) is cutable
+ @param String The object dn
+ @param String The acl category (e.g. users)
+ @param String The acl class (e.g. user)
+ @return Boolean TRUE if the given object is cutable else FALSE
+ */
+ function is_cutable($dn, $object, $class)
+ {
+ $remove = preg_match("/d/",$this->get_permissions($dn,$object."/".$class));
+ $read = preg_match("/r/",$this->has_complete_category_acls($dn, $object));
+ return($remove && $read);
+ }
+
+
+ /*! \brief Checks if we are allowed to paste an object to the given destination ($dn)
+ @param String The destination dn
+ @param String The acl category (e.g. users)
+ @param String The acl class (e.g. user)
+ @return Boolean TRUE if we are allowed to paste an object.
+ */
+ function is_pasteable($dn, $object)
+ {
+ return(preg_match("/w/",$this->has_complete_category_acls($dn, $object)));
+ }
+
+
+ /*! \brief Checks if we are allowed to restore a snapshot for the given dn.
+ @param String The destination dn
+ @param String The acl category (e.g. users)
+ @return Boolean TRUE if we are allowed to restore a snapshot.
+ */
+ function allow_snapshot_restore($dn, $object)
+ {
+ if(!is_array($object)){
+ $object = array($object);
+ }
+ $r = $w = TRUE;
+ foreach($object as $category){
+ $w &= preg_match("/w/",$this->has_complete_category_acls($dn, $category));
+ $r &= preg_match("/r/",$this->has_complete_category_acls($dn, $category));
+ }
+ return($r && $w );
+ }
+
+
+ /*! \brief Checks if we are allowed to create a snapshot of the given dn.
+ @param String The source dn
+ @param String The acl category (e.g. users)
+ @return Boolean TRUE if we are allowed to restore a snapshot.
+ */
+ function allow_snapshot_create($dn, $object)
+ {
+ if(!is_array($object)){
+ $object = array($object);
+ }
+ $r = TRUE;
+ foreach($object as $category){
+ $r &= preg_match("/r/",$this->has_complete_category_acls($dn, $category));
+ }
+ return($r) ;
+ }
+
+
+ function get_permissions($dn, $object, $attribute= "", $skip_write= FALSE)
+ {
+ /* If we are forced to skip ACLs checks for the current user
+ then return all permissions.
+ */
+ if($this->ignore_acl_for_current_user()){
+ if($skip_write){
+ return("rcdm");
+ }
+ return("rwcdm");
+ }
+
+ /* Ensure that we only cache relevant ACL settings
+ */
+# while(!isset($this->ACL[$dn]) && preg_match("/,/",$dn)){
+# $dn = preg_replace("/^[^,]+,/","",$dn);
+# }
+
+ /* Push cache answer? */
+ $ACL_CACHE = &session::get('ACL_CACHE');
+ if (isset($ACL_CACHE["$dn+$object+$attribute"])){
+
+ /* Remove write if needed */
+ if ($skip_write){
+ $ret = preg_replace('/w/', '', $ACL_CACHE["$dn+$object+$attribute"]);
+ }else{
+ $ret = $ACL_CACHE["$dn+$object+$attribute"];
+ }
+ return($ret);
+ }
+
+ /* Get ldap object, for later filter checks
+ */
+ $ldap = $this->config->get_ldap_link();
+
+ $acl= array("r" => "", "w" => "", "c" => "", "d" => "", "m" => "", "a" => "");
+
+ /* Build dn array */
+ $path= split(',', $dn);
+ $path= array_reverse($path);
+
+ /* Walk along the path to evaluate the acl */
+ $cpath= "";
+ foreach ($path as $element){
+
+ /* Clean potential ACLs for each level */
+ if(isset($this->config->idepartments[$cpath])){
+ $acl= $this->cleanACL($acl);
+ }
+
+ if ($cpath == ""){
+ $cpath= $element;
+ } else {
+ $cpath= $element.','.$cpath;
+ }
+
+ if (isset($this->ACL[$cpath])){
+
+ /* Inspect this ACL, place the result into ACL */
+ foreach ($this->ACL[$cpath] as $subacl){
+
+ /* Reset? Just clean the ACL and turn over to the next one... */
+ if ($subacl['type'] == 'reset'){
+ $acl= $this->cleanACL($acl, TRUE);
+ continue;
+ }
+
+ if($subacl['type'] == "role") {
+ echo "role skipped";
+ continue;
+ }
+
+ /* With user filter */
+ if (isset($subacl['filter']) && !empty($subacl['filter'])){
+ $id = $dn."-".$subacl['filter'];
+ if(!isset($ACL_CACHE['FILTER'][$id])){
+ $ACL_CACHE['FILTER'][$id] = $ldap->object_match_filter($dn,$subacl['filter']);
+ }
+ if(!$ACL_CACHE['FILTER'][$id]){
+ continue;
+ }
+ }
+
+ /* Self ACLs?
+ */
+ if($dn != $this->dn && isset($subacl['acl'][$object][0]) && strpos($subacl['acl'][$object][0],"s")){
+ continue;
+ }
+
+ /* If attribute is "", we want to know, if we've *any* permissions here...
+ Merge global class ACLs [0] with attributes specific ACLs [attribute].
+ */
+ if ($attribute == "" && isset($subacl['acl'][$object])){
+ foreach($subacl['acl'][$object] as $attr => $dummy){
+ $acl= $this->mergeACL($acl, $subacl['type'], $subacl['acl'][$object][$attr]);
+ }
+ continue;
+ }
+
+ /* Per attribute ACL? */
+ if (isset($subacl['acl'][$object][$attribute])){
+ $acl= $this->mergeACL($acl, $subacl['type'], $subacl['acl'][$object][$attribute]);
+ continue;
+ }
+
+ /* Per object ACL? */
+ if (isset($subacl['acl'][$object][0])){
+ $acl= $this->mergeACL($acl, $subacl['type'], $subacl['acl'][$object][0]);
+ continue;
+ }
+
+ /* Global ACL? */
+ if (isset($subacl['acl']['all'][0])){
+ $acl= $this->mergeACL($acl, $subacl['type'], $subacl['acl']['all'][0]);
+ continue;
+ }
+ }
+ }
+ }
+
+ /* If the requested ACL is for a container object, then alter
+ ACLs by applying cleanACL a last time.
+ */
+ if(isset($this->config->idepartments[$dn])){
+ $acl = $this->cleanACL($acl);
+ }
+
+ /* Assemble string */
+ $ret= "";
+ foreach ($acl as $key => $value){
+ if ($value !== ""){
+ $ret.= $key;
+ }
+ }
+
+ $ACL_CACHE["$dn+$object+$attribute"]= $ret;
+
+ /* Remove write if needed */
+ if ($skip_write){
+ $ret= preg_replace('/w/', '', $ret);
+ }
+ return ($ret);
+ }
+
+
+ /* Extract all departments that are accessible (direct or 'on the way' to an
+ accessible department) */
+ function get_module_departments($module, $skip_self_acls = FALSE )
+ {
+ /* If we are forced to skip ACLs checks for the current user
+ then return all departments as valid.
+ */
+ if($this->ignore_acl_for_current_user()){
+ return(array_keys($this->config->idepartments));
+ }
+
+ /* Use cached results if possilbe */
+ $ACL_CACHE = &session::get('ACL_CACHE');
+
+ if(!is_array($module)){
+ $module = array($module);
+ }
+
+ global $plist;
+ $res = array();
+ foreach($module as $mod){
+ if(isset($ACL_CACHE['MODULE_DEPARTMENTS'][$mod])){
+ $res = array_merge($res,$ACL_CACHE['MODULE_DEPARTMENTS'][$mod]);
+ continue;
+ }
+
+ $deps = array();
+
+ /* Search for per object ACLs */
+ foreach($this->ACL as $dn => $infos){
+ foreach($infos as $info){
+ $found = FALSE;
+ foreach($info['acl'] as $cat => $data){
+
+ /* Skip self acls? */
+ if($skip_self_acls && isset($data['0']) && strpos($data['0'], "s")) continue;
+ if(preg_match("/^".normalizePreg($mod)."/",$cat)){
+ $found =TRUE;
+ break;
+ }
+ }
+
+ if($found && !isset($this->config->idepartments[$dn])){
+ while(!isset($this->config->idepartments[$dn]) && strpos($dn, ",")){
+ $dn = preg_replace("/^[^,]+,/","",$dn);
+ }
+ if(isset($this->config->idepartments[$dn])){
+ $deps[] = $dn;
+ }
+ }
+ }
+ }
+
+ /* For all gosaDepartments */
+ foreach ($this->config->departments as $dn){
+ if(in_array($dn,$deps)) continue;
+ $acl = "";
+ if(strpos($mod, '/')){
+ $acl.= $this->get_permissions($dn,$mod);
+ }else{
+ $acl.= $this->get_category_permissions($dn,$mod,TRUE);
+ }
+ if(!empty($acl)) {
+ $deps[] = $dn;
+ }
+ }
+
+ $ACL_CACHE['MODULE_DEPARTMENTS'][$mod] = $deps;
+ $res = array_merge($res,$deps);
+ }
+ return ($res);
+ }
+
+
+ function mergeACL($acl, $type, $newACL)
+ {
+ $at= array("psub" => "p", "sub" => "s", "one" => "1");
+
+ if (strpos($newACL, 'w') !== FALSE && strpos($newACL, 'r') === FALSE){
+ $newACL .= "r";
+ }
+
+ /* Ignore invalid characters */
+ $newACL= preg_replace('/[^rwcdm]/', '', $newACL);
+
+ foreach(str_split($newACL) as $char){
+
+ /* Skip permanent and subtree entries */
+ if (preg_match('/[sp]/', $acl[$char])){
+ continue;
+ }
+
+ if ($type == "base" && $acl[$char] != 1) {
+ $acl[$char]= 0;
+ } else {
+ $acl[$char]= $at[$type];
+ }
+ }
+
+ return ($acl);
+ }
+
+
+ function cleanACL($acl, $reset= FALSE)
+ {
+ foreach ($acl as $key => $value){
+
+ /* Continue, if value is empty or permanent */
+ if ($value == "" || $value == "p") {
+ continue;
+ }
+
+ /* Reset removes everything but 'p' */
+ if ($reset && $value != 'p'){
+ $acl[$key]= "";
+ continue;
+ }
+
+ /* Decrease tree level */
+ if (is_int($value)){
+ if ($value){
+ $acl[$key]--;
+ } else {
+ $acl[$key]= "";
+ }
+ }
+ }
+
+ return ($acl);
+ }
+
+
+ /* #FIXME This could be logical wrong or could be optimized in the future
+ Return combined acls for a given category.
+ All acls will be combined like boolean AND
+ As example ('rwcdm' + 'rcd' + 'wrm'= 'r')
+
+ Results will be cached in $this->result_cache.
+ $this->result_cache will be resetted if load_acls is called.
+ */
+ function has_complete_category_acls($dn,$category)
+ {
+ $acl = "rwcdm";
+ $types = "rwcdm";
+
+ if(!is_string($category)){
+ trigger_error("category must be string");
+ $acl = "";
+ }else{
+ if(!isset($this->result_cache['has_complete_category_acls'][$dn][$category])) {
+ if (isset($this->ocMapping[$category])){
+ foreach($this->ocMapping[$category] as $oc){
+
+ /* Skip objectClass '0' (e.g. users/0) get_permissions will ever return '' ?? */
+ if($oc == "0") continue;
+ $tmp = $this->get_permissions($dn, $category."/".$oc);
+ for($i = 0, $l= strlen($types); $i < $l; $i++) {
+ if(!preg_match("/".$types[$i]."/",$tmp)){
+ $acl = preg_replace("/".$types[$i]."/","",$acl);
+ }
+ }
+ }
+ }else{
+ trigger_error("Invalid type of category ".$category);
+ $acl = "";
+ }
+ $this->result_cache['has_complete_category_acls'][$dn][$category] = $acl;
+ }else{
+ $acl = $this->result_cache['has_complete_category_acls'][$dn][$category];
+ }
+ }
+ return($acl);
+ }
+
+
+ /*! \brief Returns TRUE if the current user is configured in IGNORE_ACL=".." in your gosa.conf
+ @param Return Boolean TRUE if we have to skip ACL checks else FALSE.
+ */
+ function ignore_acl_for_current_user()
+ {
+ return($this->ignoreACL);
+ }
+
+}
+
+// vim:tabstop=2:expandtab:shiftwidth=2:filetype=php:syntax:ruler:
+?>