LDAP rewrite, use unique LDAP user and group identifiers on LDAP side as well as fancy (unqiue as far as users a know from LDAP) names on the ownCloud side. It's done via mapping of owncloud names and LDAP identifiers.
some performance enhancements: faster searching for users and groups in their specific subtrees. Reading instead of searching were possible. thanks for the feedback of Kevin van Kuik
This commit is contained in:
parent
0933b5e7ab
commit
cbba469990
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@ -0,0 +1,95 @@
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<?xml version="1.0" encoding="ISO-8859-1" ?>
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<database>
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<name>*dbname*</name>
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<create>true</create>
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<overwrite>false</overwrite>
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<charset>utf8</charset>
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<table>
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<name>*dbprefix*ldap_user_mapping</name>
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<declaration>
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<field>
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<name>ldap_dn</name>
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<type>text</type>
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<notnull>true</notnull>
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<length>255</length>
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<default></default>
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</field>
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<field>
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<name>owncloud_name</name>
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<type>text</type>
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<notnull>true</notnull>
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<length>255</length>
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<default></default>
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</field>
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<index>
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<name>ldap_dn</name>
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<unique>true</unique>
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<field>
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<name>ldap_dn</name>
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</field>
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</index>
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<index>
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<name>owncloud_name</name>
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<unique>true</unique>
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<field>
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<name>owncloud_name</name>
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<sorting>ascending</sorting>
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</field>
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</index>
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</declaration>
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</table>
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<table>
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<name>*dbprefix*ldap_group_mapping</name>
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<declaration>
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<field>
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<name>ldap_dn</name>
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<type>text</type>
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<notnull>true</notnull>
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<length>255</length>
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<default></default>
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</field>
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<field>
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<name>owncloud_name</name>
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<type>text</type>
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<notnull>true</notnull>
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<length>255</length>
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<default></default>
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</field>
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<index>
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<name>ldap_dn</name>
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<unique>true</unique>
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<field>
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<name>ldap_dn</name>
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</field>
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</index>
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<index>
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<name>owncloud_name</name>
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<unique>true</unique>
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<field>
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<name>owncloud_name</name>
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<sorting>ascending</sorting>
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</field>
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</index>
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</declaration>
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</table>
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</database>
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@ -1 +1 @@
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0.1
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0.1.90
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@ -24,11 +24,9 @@
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class OC_GROUP_LDAP extends OC_Group_Backend {
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// //group specific settings
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protected $ldapGroupFilter;
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protected $ldapGroupDisplayName;
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public function __construct() {
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$this->ldapGroupFilter = OC_Appconfig::getValue('user_ldap', 'ldap_group_filter', '(objectClass=posixGroup)');
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$this->ldapGroupDisplayName = OC_Appconfig::getValue('user_ldap', 'ldap_group_display_name', 'cn');
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}
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/**
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@ -40,18 +38,17 @@ class OC_GROUP_LDAP extends OC_Group_Backend {
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* Checks whether the user is member of a group or not.
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*/
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public function inGroup($uid, $gid) {
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$filter = OC_LDAP::combineFilterWithAnd(array(
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$this->ldapGroupFilter,
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LDAP_GROUP_MEMBER_ASSOC_ATTR.'='.$uid,
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$this->ldapGroupDisplayName.'='.$gid
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));
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$groups = $this->retrieveList($filter, $this->ldapGroupDisplayName);
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if(count($groups) > 0) {
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return true;
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} else {
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$dn_user = OC_LDAP::username2dn($uid);
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$dn_group = OC_LDAP::groupname2dn($gid);
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// if($dn_group == 'c') {echo('#sdfsdgfds');die($gid);}
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// just in case
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if(!$dn_group || !$dn_user) {
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return false;
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}
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// var_dump($dn_group);
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$members = OC_LDAP::readAttribute($dn_group, LDAP_GROUP_MEMBER_ASSOC_ATTR);
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return in_array($dn_user, $members);
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}
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/**
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@ -63,12 +60,19 @@ class OC_GROUP_LDAP extends OC_Group_Backend {
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* if the user exists at all.
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*/
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public function getUserGroups($uid) {
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$userDN = OC_LDAP::username2dn($uid);
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if(!$userDN) {
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return array();
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}
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$filter = OC_LDAP::combineFilterWithAnd(array(
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$this->ldapGroupFilter,
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LDAP_GROUP_MEMBER_ASSOC_ATTR.'='.$uid
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LDAP_GROUP_MEMBER_ASSOC_ATTR.'='.$userDN
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));
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$groups = $this->retrieveList($filter, array(OC_LDAP::conf('ldapGroupDisplayName'),'dn'));
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$userGroups = OC_LDAP::ownCloudGroupNames($groups);
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return $this->retrieveList($filter, $this->ldapGroupDisplayName);
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return array_unique($userGroups, SORT_LOCALE_STRING);
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}
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/**
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@ -76,22 +80,16 @@ class OC_GROUP_LDAP extends OC_Group_Backend {
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* @returns array with user ids
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*/
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public function usersInGroup($gid) {
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$filter = OC_LDAP::combineFilterWithAnd(array(
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$this->ldapGroupFilter,
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$this->ldapGroupDisplayName.'='.$gid
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));
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$userDNs = $this->retrieveList($filter, LDAP_GROUP_MEMBER_ASSOC_ATTR, false);
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$users = array();
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$attr = OC_LDAP::conf('ldapUserDisplayName');
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foreach($userDNs as $dn) {
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$uid = OC_LDAP::readAttribute($dn, $attr);
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if($uid) {
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// if(($uid = OC_LDAP::readAttribute($dn, $attr)) != false){
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$users[] = $uid;
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}
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$groupDN = OC_LDAP::groupname2dn($gid);
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if(!$groupDN) {
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return array();
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}
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return $users;
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$members = OC_LDAP::readAttribute($groupDN, LDAP_GROUP_MEMBER_ASSOC_ATTR);
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$result = array();
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foreach($members as $member) {
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$result[] = OC_LDAP::dn2username($member);
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}
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return array_unique($result, SORT_LOCALE_STRING);
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}
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/**
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@ -101,7 +99,9 @@ class OC_GROUP_LDAP extends OC_Group_Backend {
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* Returns a list with all groups
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*/
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public function getGroups() {
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return $this->retrieveList($this->ldapGroupFilter, $this->ldapGroupDisplayName);
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$ldap_groups = $this->retrieveList($this->ldapGroupFilter, array(OC_LDAP::conf('ldapGroupDisplayName'), 'dn'));
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$groups = OC_LDAP::ownCloudGroupNames($ldap_groups);
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return $groups;
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}
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/**
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$list = OC_LDAP::searchUsers($filter, $attr);
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}
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if(is_array($list)) {
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return array_unique($list, SORT_LOCALE_STRING);
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if(count($attr) > 1){
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return $list;
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} else {
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return array_unique($list, SORT_LOCALE_STRING);
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}
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}
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//error cause actually, maybe throw an exception in future.
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return array();
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}
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}
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@ -21,7 +21,8 @@
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*
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*/
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define('LDAP_GROUP_MEMBER_ASSOC_ATTR','uniquemember');
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define('LDAP_GROUP_MEMBER_ASSOC_ATTR','uniqueMember');
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define('LDAP_GROUP_DISPLAY_NAME_ATTR','cn');
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//needed to unbind, because we use OC_LDAP only statically
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class OC_LDAP_DESTRUCTOR {
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@ -45,7 +46,9 @@ class OC_LDAP {
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static protected $ldapTLS;
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static protected $ldapNoCase;
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// user and group settings, that are needed in both backends
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static public $ldapUserDisplayName;
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static protected $ldapUserDisplayName;
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static protected $ldapUserFilter;
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static protected $ldapGroupDisplayName;
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static public function init() {
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self::readConfiguration();
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@ -56,33 +59,343 @@ class OC_LDAP {
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@ldap_unbind(self::$ldapConnectionRes);
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}
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/**
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* @brief returns a read-only configuration value
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* @param $key the name of the configuration value
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* @returns the value on success, otherwise null
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*
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* returns a read-only configuration values
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*
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* we cannot work with getters, because it is a static class
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*/
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static public function conf($key) {
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if(!self::$configured) {
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self::init();
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}
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$availableProperties = array(
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'ldapUserDisplayName',
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'ldapGroupDisplayName',
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);
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if(in_array($key, $availableProperties)) {
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return self::$$key;
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}
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return null;
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}
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/**
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* gives back the database table for the query
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*/
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static private function getMapTable($isUser) {
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if($isUser) {
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return '*PREFIX*ldap_user_mapping';
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} else {
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return '*PREFIX*ldap_group_mapping';
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}
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}
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/**
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* @brief returns the LDAP DN for the given internal ownCloud name of the group
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* @param $name the ownCloud name in question
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* @returns string with the LDAP DN on success, otherwise false
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*
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* returns the LDAP DN for the given internal ownCloud name of the group
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*/
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static public function groupname2dn($name) {
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return self::ocname2dn($name, false);
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}
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/**
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* @brief returns the LDAP DN for the given internal ownCloud name of the user
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* @param $name the ownCloud name in question
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* @returns string with the LDAP DN on success, otherwise false
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*
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* returns the LDAP DN for the given internal ownCloud name of the user
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*/
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static public function username2dn($name) {
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$dn = self::ocname2dn($name, true);
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if($dn) {
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return $dn;
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} else {
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//fallback: user is not mapped
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$filter = self::combineFilterWithAnd(array(
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self::$ldapUserFilter,
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self::$ldapUserDisplayName . '=' . $name,
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));
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$result = self::searchUsers($filter, 'dn');
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if(isset($result[0]['dn'])) {
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self::mapUser($result[0], $name);
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return $result[0];
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}
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}
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return false;
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}
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static private function ocname2dn($name, $isUser) {
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$table = self::getMapTable($isUser);
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$query = OC_DB::prepare('
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SELECT ldap_dn
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FROM '.$table.'
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WHERE owncloud_name = ?
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');
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$record = $query->execute(array($name))->fetchOne();
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return $record;
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if($name=='Coyotes') {
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echo("adsfasdf ");
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var_dump($record);
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die();
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}
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if(isset($record['ldap_dn'])) {
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return $record['ldap_dn'];
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}
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return false;
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}
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/**
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* @brief returns the internal ownCloud name for the given LDAP DN of the group
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* @param $dn the dn of the group object
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* @param $ldapname optional, the display name of the object
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* @returns string with with the name to use in ownCloud
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*
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* returns the internal ownCloud name for the given LDAP DN of the group
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*/
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static public function dn2groupname($dn, $ldapname = null) {
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return self::dn2ocname($dn, $ldapname, false);
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}
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/**
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* @brief returns the internal ownCloud name for the given LDAP DN of the user
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* @param $dn the dn of the user object
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* @param $ldapname optional, the display name of the object
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* @returns string with with the name to use in ownCloud
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*
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* returns the internal ownCloud name for the given LDAP DN of the user
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*/
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static public function dn2username($dn, $ldapname = null) {
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return self::dn2ocname($dn, $ldapname, true);
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}
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static public function dn2ocname($dn, $ldapname = null, $isUser = true) {
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$table = self::getMapTable($isUser);
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if($isUser) {
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$nameAttribute = self::conf('ldapUserDisplayName');
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} else {
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$nameAttribute = self::conf('ldapGroupDisplayName');
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}
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$query = OC_DB::prepare('
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SELECT owncloud_name
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FROM '.$table.'
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WHERE ldap_dn = ?
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');
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$component = $query->execute(array($dn))->fetchOne();
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if($component) {
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return $component;
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}
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if(is_null($ldapname)) {
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$ldapname = self::readAttribute($dn, $nameAttribute);
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$ldapname = $ldapname[0];
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}
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//a new user/group! Then let's try to add it. We're shooting into the blue with the user/group name, assuming that in most cases there will not be a conflict. Otherwise an error will occur and we will continue with our second shot.
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if(self::mapComponent($dn, $ldapname, $isUser)) {
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return $ldapname;
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}
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//doh! There is a conflict. We need to distinguish between users/groups. Adding indexes is an idea, but not much of a help for the user. The DN is ugly, but for now the only reasonable way. But we transform it to a readable format and remove the first part to only give the path where this object is located.
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$oc_name = self::alternateOwnCloudName($ldapname, $dn);
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if(self::mapComponent($dn, $oc_name, $isUser)) {
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return $oc_name;
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}
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//and this of course should never been thrown :)
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throw new Exception('LDAP backend: unexpected collision of DN and ownCloud Name.');
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}
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/**
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* @brief gives back the user names as they are used ownClod internally
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* @param $ldapGroups an array with the ldap Users result in style of array ( array ('dn' => foo, 'uid' => bar), ... )
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* @returns an array with the user names to use in ownCloud
|
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*
|
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* gives back the user names as they are used ownClod internally
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*/
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static public function ownCloudUserNames($ldapUsers) {
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return self::ldap2ownCloudNames($ldapUsers, true);
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}
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|
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/**
|
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* @brief gives back the group names as they are used ownClod internally
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* @param $ldapGroups an array with the ldap Groups result in style of array ( array ('dn' => foo, 'cn' => bar), ... )
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* @returns an array with the group names to use in ownCloud
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||||
*
|
||||
* gives back the group names as they are used ownClod internally
|
||||
*/
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||||
static public function ownCloudGroupNames($ldapGroups) {
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return self::ldap2ownCloudNames($ldapGroups, false);
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}
|
||||
|
||||
static private function ldap2ownCloudNames($ldapObjects, $isUsers) {
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if($isUsers) {
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$knownObjects = self::mappedUsers();
|
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$nameAttribute = self::conf('ldapUserDisplayName');
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} else {
|
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$knownObjects = self::mappedGroups();
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$nameAttribute = self::conf('ldapGroupDisplayName');
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}
|
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$ownCloudNames = array();
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||||
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||||
foreach($ldapObjects as $ldapObject) {
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$key = self::recursiveArraySearch($knownObjects, $ldapObject['dn']);
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||||
|
||||
//everything is fine when we know the group
|
||||
if($key) {
|
||||
$ownCloudNames[] = $knownObjects[$key]['owncloud_name'];
|
||||
continue;
|
||||
}
|
||||
|
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//a new group! Then let's try to add it. We're shooting into the blue with the group name, assuming that in most cases there will not be a conflict
|
||||
if(self::mapComponent($ldapObject['dn'], $ldapObject[$nameAttribute], $isUsers)) {
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$ownCloudNames[] = $ldapObject[$nameAttribute];
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||||
continue;
|
||||
}
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|
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//doh! There is a conflict. We need to distinguish between groups. Adding indexes is an idea, but not much of a help for the user. The DN is ugly, but for now the only reasonable way. But we transform it to a readable format and remove the first part to only give the path where this entry is located.
|
||||
$oc_name = self::alternateOwnCloudName($ldapObject[$nameAttribute], $ldapObject['dn']);
|
||||
if(self::mapComponent($ldapObject['dn'], $oc_name, $isUsers)) {
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$ownCloudNames[] = $oc_name;
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||||
continue;
|
||||
}
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|
||||
//and this of course should never been thrown :)
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||||
throw new Exception('LDAP backend: unexpected collision of DN and ownCloud Name.');
|
||||
}
|
||||
return $ownCloudNames;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief creates a hopefully unique name for owncloud based on the display name and the dn of the LDAP object
|
||||
* @param $name the display name of the object
|
||||
* @param $dn the dn of the object
|
||||
* @returns string with with the name to use in ownCloud
|
||||
*
|
||||
* creates a hopefully unique name for owncloud based on the display name and the dn of the LDAP object
|
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*/
|
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static private function alternateOwnCloudName($name, $dn) {
|
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$ufn = ldap_dn2ufn($dn);
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return $name . ' (' . trim(substr_replace($ufn, '', 0, strpos($ufn, ','))) . ')';
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||||
}
|
||||
|
||||
/**
|
||||
* @brief retrieves all known groups from the mappings table
|
||||
* @returns array with the results
|
||||
*
|
||||
* retrieves all known groups from the mappings table
|
||||
*/
|
||||
static private function mappedGroups() {
|
||||
return self::mappedComponents(false);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief retrieves all known users from the mappings table
|
||||
* @returns array with the results
|
||||
*
|
||||
* retrieves all known users from the mappings table
|
||||
*/
|
||||
static private function mappedUsers() {
|
||||
return self::mappedComponents(true);
|
||||
}
|
||||
|
||||
static private function mappedComponents($isUsers) {
|
||||
$table = self::getMapTable($isUsers);
|
||||
|
||||
$query = OC_DB::prepare('
|
||||
SELECT ldap_dn, owncloud_name
|
||||
FROM '. $table
|
||||
);
|
||||
|
||||
return $query->execute()->fetchAll();
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief inserts a new group into the mappings table
|
||||
* @param $dn the record in question
|
||||
* @param $ocname the name to use in ownCloud
|
||||
* @returns true on success, false otherwise
|
||||
*
|
||||
* inserts a new group into the mappings table
|
||||
*/
|
||||
static private function mapGroup($dn, $ocname) {
|
||||
return self::mapComponent($dn, $ocname, false);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief inserts a new user into the mappings table
|
||||
* @param $dn the record in question
|
||||
* @param $ocname the name to use in ownCloud
|
||||
* @returns true on success, false otherwise
|
||||
*
|
||||
* inserts a new user into the mappings table
|
||||
*/
|
||||
static private function mapUser($dn, $ocname) {
|
||||
return self::mapComponent($dn, $ocname, true);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief inserts a new user or group into the mappings table
|
||||
* @param $dn the record in question
|
||||
* @param $ocname the name to use in ownCloud
|
||||
* @param $isUser is it a user or a group?
|
||||
* @returns true on success, false otherwise
|
||||
*
|
||||
* inserts a new user or group into the mappings table
|
||||
*/
|
||||
static private function mapComponent($dn, $ocname, $isUser = true) {
|
||||
$table = self::getMapTable($isUser);
|
||||
|
||||
$insert = OC_DB::prepare('
|
||||
INSERT IGNORE INTO '.$table.'
|
||||
(ldap_dn, owncloud_name)
|
||||
VALUES (?,?)
|
||||
');
|
||||
|
||||
$res = $insert->execute(array($dn, $ocname));
|
||||
|
||||
return !OC_DB::isError($res);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief reads a given attribute for an LDAP record identified by a DN
|
||||
* @param $dn the record in question
|
||||
* @param $attr the attribute that shall be retrieved
|
||||
* @returns the value on success, false otherwise
|
||||
* @returns the values in an array on success, false otherwise
|
||||
*
|
||||
* Reads an attribute from an LDAP entry
|
||||
*/
|
||||
static public function readAttribute($dn, $attr) {
|
||||
$attr = strtolower($attr);
|
||||
$cr = self::getConnectionResource();
|
||||
|
||||
// echo("<pre>");var_dump($dn);
|
||||
$rr = ldap_read($cr, $dn, 'objectClass=*', array($attr));
|
||||
if(!$rr) {
|
||||
echo('<pre>###RA ');var_dump($dn);var_dump(debug_backtrace());die();
|
||||
}
|
||||
$er = ldap_first_entry($cr, $rr);
|
||||
$result = ldap_get_attributes($cr, $er);
|
||||
if($result['count'] > 0){
|
||||
return $result[$attr][0];
|
||||
|
||||
// if($dn == 'cn=Coyotes,cn=groups,dc=blizzz-oc,dc=bzoc') die((var_dump($result)));
|
||||
if($result[$attr]['count'] > 0){
|
||||
$values = array();
|
||||
for($i=0;$i<$result[$attr]['count'];$i++) {
|
||||
$values[] = $result[$attr][$i];
|
||||
}
|
||||
return $values;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
@ -121,15 +434,38 @@ class OC_LDAP {
|
|||
* Executes an LDAP search
|
||||
*/
|
||||
static private function search($filter, $base, $attr = null) {
|
||||
$sr = ldap_search(self::getConnectionResource(), $base, $filter, array($attr));
|
||||
if(!is_null($attr) && !is_array($attr)) {
|
||||
$attr = array(strtolower($attr));
|
||||
}
|
||||
$sr = ldap_search(self::getConnectionResource(), $base, $filter, $attr);
|
||||
$findings = ldap_get_entries(self::getConnectionResource(), $sr );
|
||||
|
||||
if(!is_null($attr)) {
|
||||
$selection = array();
|
||||
$multiarray = false;
|
||||
if(count($attr) > 1) {
|
||||
$multiarray = true;
|
||||
$i = 0;
|
||||
}
|
||||
foreach($findings as $item) {
|
||||
if(isset($item[strtolower($attr)])) {
|
||||
$selection[] = $item[strtolower($attr)][0];
|
||||
if($multiarray) {
|
||||
foreach($attr as $key) {
|
||||
if(isset($item[$key])) {
|
||||
if($key != 'dn'){
|
||||
$selection[$i][$key] = $item[$key][0];
|
||||
} else {
|
||||
$selection[$i][$key] = $item[$key];
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
$i++;
|
||||
} else {
|
||||
if(isset($item[$attr[0]])) {
|
||||
$selection[] = $item[$attr[0]];
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
return $selection;
|
||||
}
|
||||
|
@ -194,16 +530,18 @@ class OC_LDAP {
|
|||
*/
|
||||
static private function readConfiguration() {
|
||||
if(!self::$configured) {
|
||||
self::$ldapHost = OC_Appconfig::getValue('user_ldap', 'ldap_host', '');
|
||||
self::$ldapPort = OC_Appconfig::getValue('user_ldap', 'ldap_port', OC_USER_BACKEND_LDAP_DEFAULT_PORT);
|
||||
self::$ldapAgentName = OC_Appconfig::getValue('user_ldap', 'ldap_dn','');
|
||||
self::$ldapAgentPassword = OC_Appconfig::getValue('user_ldap', 'ldap_password','');
|
||||
self::$ldapBase = OC_Appconfig::getValue('user_ldap', 'ldap_base', '');
|
||||
self::$ldapBaseUsers = OC_Appconfig::getValue('user_ldap', 'ldap_base_users',self::$ldapBase);
|
||||
self::$ldapBaseGroups = OC_Appconfig::getValue('user_ldap', 'ldap_base_groups', self::$ldapBase);
|
||||
self::$ldapTLS = OC_Appconfig::getValue('user_ldap', 'ldap_tls',0);
|
||||
self::$ldapNoCase = OC_Appconfig::getValue('user_ldap', 'ldap_nocase', 0);
|
||||
self::$ldapUserDisplayName = OC_Appconfig::getValue('user_ldap', 'ldap_display_name', OC_USER_BACKEND_LDAP_DEFAULT_DISPLAY_NAME);
|
||||
self::$ldapHost = OC_Appconfig::getValue('user_ldap', 'ldap_host', '');
|
||||
self::$ldapPort = OC_Appconfig::getValue('user_ldap', 'ldap_port', OC_USER_BACKEND_LDAP_DEFAULT_PORT);
|
||||
self::$ldapAgentName = OC_Appconfig::getValue('user_ldap', 'ldap_dn','');
|
||||
self::$ldapAgentPassword = OC_Appconfig::getValue('user_ldap', 'ldap_password','');
|
||||
self::$ldapBase = OC_Appconfig::getValue('user_ldap', 'ldap_base', '');
|
||||
self::$ldapBaseUsers = OC_Appconfig::getValue('user_ldap', 'ldap_base_users',self::$ldapBase);
|
||||
self::$ldapBaseGroups = OC_Appconfig::getValue('user_ldap', 'ldap_base_groups', self::$ldapBase);
|
||||
self::$ldapTLS = OC_Appconfig::getValue('user_ldap', 'ldap_tls',0);
|
||||
self::$ldapNoCase = OC_Appconfig::getValue('user_ldap', 'ldap_nocase', 0);
|
||||
self::$ldapUserDisplayName = OC_Appconfig::getValue('user_ldap', 'ldap_display_name', OC_USER_BACKEND_LDAP_DEFAULT_DISPLAY_NAME);
|
||||
self::$ldapUserFilter = OC_Appconfig::getValue('user_ldap', 'ldap_userlist_filter','objectClass=person');
|
||||
self::$ldapGroupDisplayName = OC_Appconfig::getValue('user_ldap', 'ldap_group_display_name', LDAP_GROUP_DISPLAY_NAME_ATTR);
|
||||
|
||||
if(
|
||||
!empty(self::$ldapHost)
|
||||
|
@ -247,5 +585,23 @@ class OC_LDAP {
|
|||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* taken from http://www.php.net/manual/en/function.array-search.php#97645
|
||||
* TODO: move somewhere, where its better placed since it is not LDAP specific. OC_Helper maybe?
|
||||
*/
|
||||
static public function recursiveArraySearch($haystack, $needle, $index = null) {
|
||||
$aIt = new RecursiveArrayIterator($haystack);
|
||||
$it = new RecursiveIteratorIterator($aIt);
|
||||
|
||||
while($it->valid()) {
|
||||
if (((isset($index) AND ($it->key() == $index)) OR (!isset($index))) AND ($it->current() == $needle)) {
|
||||
return $aIt->key();
|
||||
}
|
||||
|
||||
$it->next();
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
}
|
Loading…
Reference in New Issue