LDAPAccountManager/lam/lib/modules/nisNetGroupUser.inc

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<?php
/*
$Id$
This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
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Copyright (C) 2015 - 2016 Roland Gruber
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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
*/
/**
* Manages memberships in NIS net groups.
*
* @package modules
* @author Roland Gruber
*/
/**
* Manages memberships in NIS net groups.
*
* @package modules
*/
class nisNetGroupUser extends baseModule {
/** list of NIS netgroups the user is memberOf (array(array(name => '', dn => '', host => '', domain => ''))) */
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protected $groups = array();
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/** list of NIS netgroups the user was memberOf (array(array(name => '', dn => '', host => '', domain => ''))) */
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protected $groupsOrig = array();
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/** group cache (array(array(cn => '', dn => '', nisnetgrouptriple => array()))) */
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protected $groupCache = null;
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/** original uid */
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protected $uidOrig = null;
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/**
* Returns true if this module can manage accounts of the current type, otherwise false.
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*
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* @return boolean true if module fits
*/
public function can_manage() {
return in_array($this->get_scope(), array('user'));
}
/**
* Returns meta data that is interpreted by parent class
*
* @return array array with meta data
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*
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* @see baseModule::get_metaData()
*/
public function get_metaData() {
$return = array();
// icon
$return['icon'] = 'groupBig.png';
// module dependencies
$return['dependencies'] = array('depends' => array(array('posixAccount', 'inetOrgPerson')), 'conflicts' => array());
// alias name
$return["alias"] = _("NIS net groups");
// available PDF fields
$return['PDF_fields']['memberships'] = _('NIS net groups');
// help Entries
$return['help'] = array(
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'memberships_upload' => array(
"Headline" => _('NIS net groups'),
"Text" => _("Here you can enter a list of net groups. Group blocks are separated by comma in format GROUP#HOST#DOMAIN. Host and domain are optional.")
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),
);
// upload columns
$return['upload_columns'][] = array(
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'name' => 'nisNetGroup_memberships',
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'description' => _('Memberships'),
'help' => 'memberships_upload',
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'example' => 'group1#host#domain,group2#host#domain'
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);
return $return;
}
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/**
* This function fills the $messages variable with output messages from this module.
*/
function load_Messages() {
$this->messages['host'][0] = array('ERROR', _('Host name'), _('Host name contains invalid characters. Valid characters are: a-z, A-Z, 0-9 and .-_ !'));
$this->messages['domain'][0] = array('ERROR', _('Domain name'), _('Domain name is invalid!'));
}
/**
* Initializes the module after it became part of an accountContainer
*
* @param string $base the name of the accountContainer object ($_SESSION[$base])
*/
function init($base) {
// call parent init
parent::init($base);
$this->groups = array();
$this->groupsOrig = array();
}
/**
* This function loads all needed LDAP attributes.
*
* @param array $attr list of attributes
*/
function load_attributes($attr) {
parent::load_attributes($attr);
if (empty($attr['uid'][0])) {
return;
}
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$this->uidOrig = $attr['uid'][0];
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$types = array('netgroup');
$typeSettings = $_SESSION['config']->get_typeSettings();
$groupList = array();
$filter = '(&(objectClass=nisNetgroup)(nisnetgrouptriple=*))';
if (!empty($typeSettings['filter_' . $types[0]])) {
$typeFilter = $typeSettings['filter_' . $types[0]];
if (strpos($typeFilter, '(') !== 0) {
$typeFilter = '(' . $typeFilter . ')';
}
$filter = '(&' . $filter . $typeFilter . ')';
}
$groupList = searchLDAPByFilter($filter, array('dn', 'cn', 'nisnetgrouptriple'), $types);
$this->groupsOrig = array();
$tripleRegex = '/^\\(([^,]*),([^,]*),([^,]*)\\)$/';
foreach ($groupList as $group) {
foreach ($group['nisnetgrouptriple'] as $triple) {
$matches = array();
if (preg_match($tripleRegex, $triple, $matches) == 0) {
continue;
}
$host = $matches[1];
$user = $matches[2];
$domain = $matches[3];
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if ($this->isMatchingNetGroup($user, $host, $domain, $this->uidOrig)) {
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$this->groupsOrig[] = array(
'name' => $group['cn'][0],
'dn' => $group['dn'],
'host' => $host,
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'user' => $user,
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'domain' => $domain
);
}
}
}
usort($this->groupsOrig, array($this, 'sortTriple'));
$this->groups = $this->groupsOrig;
}
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/**
* Checks if the netgroup matches this entry.
*
* @param String $user netgroup user name
* @param String $host netgroup host name
* @param String $domain netgroup domain name
* @param String $uid user name of this entry
*/
protected function isMatchingNetGroup($user, $host, $domain, $uid) {
return $user == $uid;
}
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/**
* Displays the group selection.
*
* @return htmlElement meta HTML code
*/
public function display_html_attributes() {
$return = new htmlTable();
$return->addElement(new htmlOutputText(_('Group')));
$return->addElement(new htmlOutputText(_('Host name')));
$return->addElement(new htmlOutputText(_('Domain name')), true);
for ($i = 0; $i < sizeof($this->groups); $i++) {
$group = $this->groups[$i];
$return->addElement(new htmlOutputText($group['name']));
$return->addElement(new htmlInputField('host_' . $i, $group['host']));
$return->addElement(new htmlInputField('domain_' . $i, $group['domain']));
$delButton = new htmlButton('del_' . $i, 'del.png', true);
$delButton->setTitle(_('Delete'));
$return->addElement($delButton, true);
}
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$return->addVerticalSpace('40px');
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// new entry
$groupList = array();
$groupData = $this->findGroups();
if (sizeof($groupData) > 0) {
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$filterGroup = new htmlGroup();
$filterGroup->addElement(new htmlOutputText(_('Filter') . ' '));
$filter = new htmlInputField('group_filter');
$filter->setFieldSize('5em');
$filter->setOnKeyUp('filterSelect(\'group_filter\', \'group_add\', event);');
$filterGroup->addElement($filter);
$return->addElement($filterGroup, true);
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foreach ($groupData as $group) {
$groupList[$group['cn'][0]] = $group['cn'][0] . '#+#' . $group['dn'];
}
$groupSelect = new htmlSelect('group_add', $groupList);
$groupSelect->setHasDescriptiveElements(true);
$return->addElement($groupSelect);
$return->addElement(new htmlInputField('host_add'));
$return->addElement(new htmlInputField('domain_add'));
$addButton = new htmlButton('addGroup', 'add.png', true);
$addButton->setTitle(_('Add'));
$return->addElement($addButton, true);
}
return $return;
}
/**
* Processes user input of the group selection page.
* It checks if all input values are correct and updates the associated LDAP attributes.
*
* @return array list of info/error messages
*/
public function process_attributes() {
$errors = array();
// add new entry
if (isset($_POST['addGroup'])) {
$parts = explode('#+#', $_POST['group_add']);
$this->groups[] = array(
'name' => $parts[0],
'dn' => $parts[1],
'host' => $_POST['host_add'],
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'user' => $this->uidOrig,
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'domain' => $_POST['domain_add']
);
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if (!empty($_POST['host_add']) && !get_preg($_POST['host_add'], 'DNSname')) {
$message = $this->messages['host'][0];
$message[2] = $message[2] . '<br><br>' . $_POST['host_add'];
$errors[] = $message;
}
if (!empty($_POST['domain_add']) && !get_preg($_POST['domain_add'], 'DNSname')) {
$message = $this->messages['domain'][0];
$message[2] = $message[2] . '<br><br>' . $_POST['domain_add'];
$errors[] = $message;
}
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}
// check existing
$counter = 0;
while (isset($_POST['host_' . $counter])) {
if (isset($_POST['del_' . $counter])) {
unset($this->groups[$counter]);
}
else {
$this->groups[$counter]['host'] = $_POST['host_' . $counter];
if (!empty($_POST['host_' . $counter]) && !get_preg($_POST['host_' . $counter], 'DNSname')) {
$message = $this->messages['host'][0];
$message[2] = $message[2] . '<br><br>' . $_POST['host_' . $counter];
$errors[] = $message;
}
$this->groups[$counter]['domain'] = $_POST['domain_' . $counter];
if (!empty($_POST['domain_' . $counter]) && !get_preg($_POST['domain_' . $counter], 'DNSname')) {
$message = $this->messages['domain'][0];
$message[2] = $message[2] . '<br><br>' . $_POST['domain_' . $counter];
$errors[] = $message;
}
}
$counter++;
}
$this->groups = array_values($this->groups);
usort($this->groups, array($this, 'sortTriple'));
return $errors;
}
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/**
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* Returns the user ID for this user.
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*
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* @return String user ID
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*/
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protected function getUid() {
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$moduleAttributes = array();
if ($this->getAccountContainer()->getAccountModule('posixAccount') != null) {
$moduleAttributes = $this->getAccountContainer()->getAccountModule('posixAccount')->getAttributes();
}
else {
$moduleAttributes = $this->getAccountContainer()->getAccountModule('inetOrgPerson')->getAttributes();
}
if (empty($moduleAttributes['uid'][0])) {
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return null;
}
return $moduleAttributes['uid'][0];
}
/**
* Runs the postmodify actions.
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*
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* @see baseModule::postModifyActions()
*
* @param boolean $newAccount
* @param array $attributes LDAP attributes of this entry
* @return array array which contains status messages. Each entry is an array containing the status message parameters.
*/
public function postModifyActions($newAccount, $attributes) {
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$accountContainer = $this->getAccountContainer();
if (empty($accountContainer)) {
return array();
}
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$uid = $this->getUid();
if (empty($uid)) {
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return array();
}
$ldapUser = $_SESSION['ldap']->decrypt_login();
$ldapUser = $ldapUser[0];
$messages = array();
// calculate differences
$toRem = $this->groupsOrig;
$toAdd = $this->groups;
$counter = sizeof($toRem);
for ($i = 0; $i < $counter; $i++) {
$group_orig = $toRem[$i];
foreach ($toAdd as $k => $group) {
if (($group_orig['dn'] == $group['dn'])
&& ($group_orig['domain'] == $group['domain'])
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&& ($group_orig['user'] == $group['user'])
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&& ($group_orig['host'] == $group['host'])) {
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if (!empty($this->uidOrig) && ($this->uidOrig != $uid)) {
// uid changed, simply update uid in all net groups
}
else {
// do not touch existing memberships
unset($toRem[$i]);
unset($toAdd[$k]);
}
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break;
}
}
}
// group by DN
$changes = array();
foreach ($toAdd as $add) {
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$changes[$add['dn']]['add'][] = $this->createNetGroupValue($add, $uid);
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}
foreach ($toRem as $del) {
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$delUid = empty($this->uidOrig) ? $uid : $this->uidOrig;
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$changes[$del['dn']]['del'][] = $this->createNetGroupValue($del, $delUid);
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}
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// update groups
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foreach ($changes as $dn => $changeSet) {
$current = ldapGetDN($dn, array('nisnetgrouptriple'));
if (empty($current)) {
$messages[] = array('ERROR', sprintf(_('Was unable to modify attributes of DN: %s.'), $dn));
continue;
}
$triples = empty($current['nisnetgrouptriple']) ? array() : $current['nisnetgrouptriple'];
if (!empty($changeSet['del'])) {
$triples = array_delete($changeSet['del'], $triples);
}
if (!empty($changeSet['add'])) {
$triples = array_merge($changeSet['add'], $triples);
}
$triples = array_values(array_unique($triples));
$attributes = array(
'nisnetgrouptriple' => $triples
);
$success = @ldap_mod_replace($_SESSION['ldap']->server(), $dn, $attributes);
if (!$success) {
logNewMessage(LOG_ERR, '[' . $ldapUser .'] Unable to modify attributes of DN: ' . $dn . ' (' . ldap_error($_SESSION['ldap']->server()) . ').');
$messages[] = array('ERROR', sprintf(_('Was unable to modify attributes of DN: %s.'), $dn), getDefaultLDAPErrorString($_SESSION['ldap']->server()));
}
}
return $messages;
}
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/**
* Creates a netgroup triple from a group object.
*
* @param String $group group object
* @param String $uid own uid
*/
protected function createNetGroupValue($group, $uid) {
return '(' . $group['host'] . ',' . $uid . ',' . $group['domain'] . ')';
}
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/**
* Additional LDAP operations on delete.
*
* @return List of LDAP operations, same as for save_attributes()
*/
function delete_attributes() {
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$uid = $this->getUid();
if (empty($uid)) {
return array();
}
$ldapUser = $_SESSION['ldap']->decrypt_login();
$ldapUser = $ldapUser[0];
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$return = array();
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// remove from NIS netgroups
$changes = array();
foreach ($this->groups as $group) {
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$changes[$group['dn']][] = $this->createNetGroupValue($group, $uid);
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}
foreach ($changes as $dn => $changeSet) {
$current = ldapGetDN($dn, array('nisnetgrouptriple'));
if (empty($current)) {
$messages[] = array('ERROR', sprintf(_('Was unable to modify attributes of DN: %s.'), $dn));
continue;
}
$triples = empty($current['nisnetgrouptriple']) ? array() : $current['nisnetgrouptriple'];
$triples = array_delete($changeSet, $triples);
$triples = array_values(array_unique($triples));
$attributes = array(
'nisnetgrouptriple' => $triples
);
$success = @ldap_mod_replace($_SESSION['ldap']->server(), $dn, $attributes);
if (!$success) {
logNewMessage(LOG_ERR, '[' . $ldapUser .'] Unable to modify attributes of DN: ' . $dn . ' (' . ldap_error($_SESSION['ldap']->server()) . ').');
$messages[] = array('ERROR', sprintf(_('Was unable to modify attributes of DN: %s.'), $dn), getDefaultLDAPErrorString($_SESSION['ldap']->server()));
}
}
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return $return;
}
/**
* Returns a list of elements for the account profiles.
*
* @return profile elements
*/
function get_profileOptions() {
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$groups = $this->findGroups();
$groupOptions = array('' => '');
foreach ($groups as $group) {
$groupOptions[$group['cn'][0]] = $group['cn'][0] . '#+#' . $group['dn'];
}
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$return = new htmlTable();
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$return->addElement(new htmlOutputText(_('Group')));
$return->addElement(new htmlOutputText(_('Host name')));
$return->addElement(new htmlOutputText(_('Domain name')), true);
for ($i = 0; $i < 5; $i++) {
$select = new htmlSelect('nisNetGroupUser_group' . $i, $groupOptions, array(''));
$select->setHasDescriptiveElements(true);
$return->addElement($select);
$return->addElement(new htmlInputField('nisNetGroupUser_host' . $i));
$return->addElement(new htmlInputField('nisNetGroupUser_domain' . $i), true);
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}
return $return;
}
/**
* Loads the values of an account profile into internal variables.
*
* @param array $profile hash array with profile values (identifier => value)
*/
function load_profile($profile) {
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for ($i = 0; $i < 5; $i++) {
if (!empty($profile['nisNetGroupUser_group' . $i][0])) {
$parts = explode('#+#', $profile['nisNetGroupUser_group' . $i][0]);
$this->groups[] = array(
'name' => $parts[0],
'dn' => $parts[1],
'host' => $profile['nisNetGroupUser_host' . $i][0],
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'user' => $this->uidOrig,
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'domain' => $profile['nisNetGroupUser_domain' . $i][0],
);
}
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}
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usort($this->groups, array($this, 'sortTriple'));
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}
/**
* Returns a list of possible PDF entries for this account.
*
* @param array $pdfKeys list of PDF keys that are included in document
* @return list of PDF entries (array(<PDF key> => <PDF lines>))
*/
function get_pdfEntries($pdfKeys) {
$return = array();
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$pdfTable = new PDFTable();
$pdfRow = new PDFTableRow();
$pdfRow->cells[] = new PDFTableCell(_('Group'), '25%', null, true);
$pdfRow->cells[] = new PDFTableCell(_('Host name'), '25%', null, true);
$pdfRow->cells[] = new PDFTableCell(_('Domain name'), '25%', null, true);
$pdfTable->rows[] = $pdfRow;
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foreach ($this->groups as $group) {
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$pdfRow = new PDFTableRow();
$pdfRow->cells[] = new PDFTableCell($group['name'], '25%');
$pdfRow->cells[] = new PDFTableCell($group['host'], '25%');
$pdfRow->cells[] = new PDFTableCell($group['domain'], '25%');
$pdfTable->rows[] = $pdfRow;
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}
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$this->addPDFTable($return, 'memberships', $pdfTable);
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return $return;
}
/**
* In this function the LDAP account is built up.
*
* @param array $rawAccounts list of hash arrays (name => value) from user input
* @param array $ids list of IDs for column position (e.g. "posixAccount_uid" => 5)
* @param array $partialAccounts list of hash arrays (name => value) which are later added to LDAP
* @param array $selectedModules list of selected account modules
* @return array list of error messages if any
*/
function build_uploadAccounts($rawAccounts, $ids, &$partialAccounts, $selectedModules) {
$errors = array();
// get list of existing group of names
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$groups = $this->findGroups();
$groupNames = array();
foreach ($groups as $group) {
$groupNames[] = $group['cn'][0];
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}
// check input
for ($i = 0; $i < sizeof($rawAccounts); $i++) {
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// group names
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if (!empty($rawAccounts[$i][$ids['nisNetGroup_memberships']])) {
$triples = preg_split('/,[ ]*/', $rawAccounts[$i][$ids['nisNetGroup_memberships']]);
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foreach ($triples as $triple) {
$parts = explode('#', $triple);
if (!in_array($parts[0], $groupNames)) {
$errors[] = array('ERROR', _('Unable to find group in LDAP.'), $parts[0]);
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}
}
}
}
return $errors;
}
/**
* This function executes one post upload action.
*
* @param array $data array containing one account in each element
* @param array $ids array(<column_name> => <column number>)
* @param array $failed list of accounts which were not created successfully
* @param array $temp variable to store temporary data between two post actions
* @param array $accounts list of LDAP entries
* @return array current status
* <br> array (
* <br> 'status' => 'finished' | 'inProgress'
* <br> 'progress' => 0..100
* <br> 'errors' => array (<array of parameters for StatusMessage>)
* <br> )
*/
function doUploadPostActions(&$data, $ids, $failed, &$temp, &$accounts) {
if (!checkIfWriteAccessIsAllowed($this->get_scope())) {
die();
}
// on first call generate list of LDAP operations
if (!isset($temp['counter'])) {
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$temp['groups'] = array();
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$temp['counter'] = 0;
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// get list of existing groups
$groupList = $this->findGroups();
$groupMap = array();
foreach ($groupList as $group) {
$groupMap[$group['cn'][0]] = $group['dn'];
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}
for ($i = 0; $i < sizeof($data); $i++) {
if (in_array($i, $failed)) continue; // ignore failed accounts
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if (empty($accounts[$i]['uid'])) {
continue;
}
$uid = $accounts[$i]['uid'];
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if (!empty($data[$i][$ids['nisNetGroup_memberships']])) {
$triples = preg_split('/,[ ]*/', $data[$i][$ids['nisNetGroup_memberships']]);
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foreach ($triples as $triple) {
$parts = explode('#', $triple);
$group = $parts[0];
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$temp['groups'][$groupMap[$group]][] = $this->buildNetGroupTripleFromUploadValue($parts, $uid);
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}
}
}
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$temp['groupDNs'] = array_keys($temp['groups']);
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return array(
'status' => 'inProgress',
'progress' => 0,
'errors' => array()
);
}
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// add users to groups
elseif ($temp['counter'] < sizeof($temp['groupDNs'])) {
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$errors = array();
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$dn = $temp['groupDNs'][$temp['counter']];
$current = ldapGetDN($dn, array('nisnetgrouptriple'));
if (empty($current)) {
$errors[] = array('ERROR', sprintf(_('Was unable to modify attributes of DN: %s.'), $dn));
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$temp['counter']++;
return;
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}
$triples = empty($current['nisnetgrouptriple']) ? array() : $current['nisnetgrouptriple'];
$triples = array_merge($temp['groups'][$dn], $triples);
$triples = array_values(array_unique($triples));
$attributes = array(
'nisnetgrouptriple' => $triples
);
$success = @ldap_mod_replace($_SESSION['ldap']->server(), $dn, $attributes);
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if (!$success) {
$errors[] = array(
"ERROR",
_("LAM was unable to modify group memberships for group: %s"),
getDefaultLDAPErrorString($_SESSION['ldap']->server()),
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array($dn)
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);
}
$temp['counter']++;
return array (
'status' => 'inProgress',
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'progress' => ($temp['counter'] * 100) / sizeof($temp['groupDNs']),
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'errors' => $errors
);
}
// all modifications are done
else {
return array (
'status' => 'finished',
'progress' => 100,
'errors' => array()
);
}
}
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/**
* Creates a netgroup triple from the input value of file upload.
*
* @param array $value upload value (e.g. array(group1, host, domain))
* @param String $uid own uid
* @return String netgroup triple
*/
protected function buildNetGroupTripleFromUploadValue($value, $uid) {
$host = empty($value[1]) ? '' : $value[1];
$domain = empty($value[2]) ? '' : $value[2];
return '(' . $host . ',' . $uid . ',' . $domain . ')';
}
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/**
* Finds all existing LDAP NIS net groups.
*
* @return array groups array(array(cn => array(), dn => '', nisnetgrouptriple => array()))
*/
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protected function findGroups() {
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if ($this->groupCache != null) {
return $this->groupCache;
}
$return = array();
$types = array('netgroup');
$typeSettings = $_SESSION['config']->get_typeSettings();
if (sizeof($types) > 0) {
foreach ($types as $type) {
$filter = '(objectClass=nisNetgroup)';
if (!empty($typeSettings['filter_' . $type])) {
$typeFilter = $typeSettings['filter_' . $type];
if (strpos($typeFilter, '(') !== 0) {
$typeFilter = '(' . $typeFilter . ')';
}
$filter = '(&' . $filter . $typeFilter . ')';
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}
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$results = searchLDAPByFilter($filter, array('cn', 'dn', 'nisnetgrouptriple'), array($type));
for ($i = 0; $i < sizeof($results); $i++) {
if (isset($results[$i]['cn'][0]) && isset($results[$i]['dn'])) {
$return[] = $results[$i];
}
}
}
}
$this->groupCache = $return;
return $return;
}
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/**
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* Sorts NIS netgroup triples by group, host, user and domain.
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*
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* @param array $first first array
* @param array $second second array
*/
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protected function sortTriple($first, $second) {
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if ($first['name'] != $second['name']) {
return strnatcasecmp($first['name'], $second['name']);
}
elseif ($first['host'] != $second['host']) {
return strnatcasecmp($first['host'], $second['host']);
}
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elseif ($first['user'] != $second['user']) {
return strnatcasecmp($first['user'], $second['user']);
}
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return strnatcasecmp($first['domain'], $second['domain']);
}
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}
?>