LDAPAccountManager/lam/lib/modules/posixAccount.inc

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<?php
/*
$Id$
This code is part of LDAP Account Manager (http://www.sourceforge.net/projects/lam)
Copyright (C) 2003 Tilo Lutz
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
*/
/* External variables which are used:
* $_SESSION['cacheAttributes'], $_COOKIE["IV"], $_COOKIE["Key"]
*
* External functions which are used
/* This class contains all posixAccount LDAP attributes
* and funtioncs required to deal with posixAccount
* posixAccount can only be created when it should be added
* to an array.
* basearray is the same array posixAccount should be added
* to. If basearray is not given the constructor tries to
* create an array with posixAccount and all other required
* objects.
* Example: $user[] = new posixAccount($user);
*
* In container array the following things have to exist:
* account or inetOrgPerson object
* type: 'user' or 'host'
* 'attributes': this is a list of arrays with all ldap attributes wich are allowed for this account
*/
class posixAccount {
// Constructor
function posixAccount(&$basearray=false) {
/* Return an error if posixAccount should be created without
* base container
*/
if (!$basearray) die _('Please create a new object with $array[] = new posixAccount($array);');
// Check if $basearray is an array
if (!is_array($basearray)) die _('Please create a new object with $array[] = new posixAccount($array);');
// posixAccount is only a valid objectClass for user and host
if !($basearray['type'] == 'host' || $basearray['type'] == 'user') die _('posixAccount can only be used for users and hosts.');
/* Check if ldap conatiner is in array and set type
* users are using inetOrgPerson-, hosts account-container
*/
foreach ($basearray as $singleobject) {
if (is_a($singleobject, 'account') && $basearray['type'] == 'host') $found = true;
if (is_a($singleobject, 'inetOrgPerson') && $basearray['type'] == 'user') $found = true;
}
if (!$found) die _('Please add an inetOrgPerson-object for users or an account-object for hosts first.');
/* Check if at least one group does exist in ldap
*/
$groups = findgroups(); // list of all groupnames
if (count($groups)==0) die _('Please create a group first.');
/* This array contains all attributes which have to be cached for performance
* reasons.
*/
$_SESSION['cacheAttributes'] = array_merge ($_SESSION['cacheAttributes'], array ('user' => array('cn', 'uid', 'uidNumber'), 'host' => array('cn', 'uid', 'uidNumber') ) );
// unique array
$_SESSION['cacheAttributes'] = array_unique ($_SESSION['cacheAttributes']);
// Array with all attributes and type
$basearray['attributes'] = array_merge ($basearray['attributes'], array ( 0 => array('cn', 'string', 'must'), 1 => array('uid', 'string', 'must'), 2 => array('uidNumber', 'string', 'must'), 3 => array('gidNumber', 'string', 'must'),
4 => array('homeDirectory', 'string', 'must'), 5 => array('loginShell', 'string', 'may'), 6 => array('gecos', 'string', 'may'), 7 => array('description', 'string', 'may'),
8 => array('userPassword', 'function', 'may'), 9 => array('userPassword_no', 'boolean', 'may') ));
// unique array
$basearray['attributes'] = array_unique($basearray['attributes']);
// Add account type to object
$this->type = $basearray['type'];
$orig = array( 'cn' => '', 'uid' => '', 'uidNumber' => '', 'gidNumber' => '', 'homeDirectory' => '', 'loginShell' => '', 'gecos' => '',
'description' => '', 'enc_userPassword' => '' );
$this->alias = _('posixAccount');
}
// Variables
// Alias Name. This name is shown in the menu instead of posixAccount
var $alias;
// original name is userPassword. This variable is used to store the encrypted password
var $enc_userPassword;
// we can't read type from array so we have to store it also in object
var $type;
// Use a unix password?
var $userPassword_no;
// Lock account?
var $userPassword_lock;
// Array with all groups the user should also be member of
var $groups;
// LDAP attributes
// These attributes have to be set in ldap
var $cn;
var $uid;
var $uidNumber;
var $gidNumber;
var $homeDirectory;
// These attributes doesn't have to be set in ldap
var $loginShell;
var $gecos;
var $description;
/* This function will return the unencrypted password when
* called without a variable
* If it's called with a new password, the
* new password will be stored encrypted
*/
function userPassword($newpassword='') {
// Read existing password if set
if ($newpassword='') {
if ($this->enc_userPassword != '') {
$iv = base64_decode($_COOKIE["IV"]);
$key = base64_decode($_COOKIE["Key"]);
$password = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, base64_decode($this->enc_userPassword), MCRYPT_MODE_ECB, $iv);
$password = str_replace(chr(00), '', $password);
return $password;
}
else return '';
}
// Write new password
else {
$iv = base64_decode($_COOKIE["IV"]);
$key = base64_decode($_COOKIE["Key"]);
$this->enc_userPassword = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $newpassword, MCRYPT_MODE_ECB, $iv));
return 0;
}
}
/* If an account was loaded all attributes are kept in this array
* to compare it with new changed attributes
*/
var $orig;
/* Write variables into object and do some regexp checks
*/
function proccess_attributes() {
// Load attributes
$this->uid = $_POST['form_posixAccount_uid'];
// *** fixme how can this handeled better?
$this->cn &= $this->uid;
$this->uidNumber = $_POST['form_posixAccount_uidNumber'];
$this->gidNumber = getgrnam($_POST['form_posixAccount_gidNumber']);
$this->homeDirectory = $_POST['form_posixAccount_homeDirectory'];
$this->loginShell = $_POST['form_posixAccount_loginShell'];
$this->gecos = $_POST['form_posixAccount_gecos'];
$this->description = $_POST['form_posixAccount_description'];
if ($_POST['form_posixAccount_userPassword_no']; $this->userPassword_no=true;
else $this->userPassword_no=false;
if ($_POST['form_posixAccount_userPassword_lock']; $this->userPassword_lock=true;
else $this->userPassword_lock=false;
if (isset($_POST['form_posixAccount_userPassword'])) {
if ($_POST['form_posixAccount_userPassword'] != $_POST['form_posixAccount_userPassword2']) {
$errors[] = array('ERROR', _('Password'), _('Please enter the same password in both password-fields.'));
unset ($_POST['form_posixAccount_userPassword2']);
}
else $this->userPassword($_POST['form_posixAccount_userPassword']);
}
if ($_POST['form_posixAccount_genpass']) $this->userPassword(genpasswd());
// Check if Username contains only valid characters
if ( !ereg('^([a-z]|[A-Z]|[0-9]|[.]|[-]|[_])*$', $this->uid))
$errors[] = array('ERROR', _('Username'), _('Username contains invalid characters. Valid characters are: a-z, A-Z, 0-9 and .-_ !'));
// Create automatic useraccount with number if original user already exists
// Reset name to original name if new name is in use
// *** fixme make incache modularized. Incache will return the found attribute
// Set username back to original name if new username is in use
if (incache($this,'uid', '*')!=$this->orig['uid'] && ($this->orig['uid']!='')) $this->uid = $this->orig['uid'];
// Change uid to a new uid until a free uid is found
while (incache($this, 'uid', '*')) {
// Remove "$" at end of hostname if type is host
if ($this->type=='host') $this->uid = substr($this->uid, 0, $this->uid-1);
// get last character of username
$lastchar = substr($this->uid, strlen($this->uid)-1, 1);
// Last character is no number
if ( !ereg('^([0-9])+$', $lastchar))
/* Last character is no number. Therefore we only have to
* add "2" to it.
*/
if ($this->type=='host') $this->uid = $this->uid . '2$';
else $this->uid = $this->uid . '2';
else {
/* Last character is a number -> we have to increase the number until we've
* found a groupname with trailing number which is not in use.
*
* $i will show us were we have to split groupname so we get a part
* with the groupname and a part with the trailing number
*/
$i=strlen($this->uid)-1;
$mark = false;
// Set $i to the last character which is a number in $account_new->general_username
while (!$mark) {
if (ereg('^([0-9])+$',substr($this->uid, $i, strlen($this->uid)-$i))) $i--;
else $mark=true;
}
// increase last number with one
$firstchars = substr($this->uid, 0, $i+1);
$lastchars = substr($this->uid, $i+1, strlen($this->uid)-$i);
// Put username together
$this->uid = $firstchars . (intval($lastchars)+1);
// Add $ name if type is host
if ($this->type=='host') $this->uid .= '$';
}
}
// Show warning if lam has changed username
if ($this->uid != $_POST['form_posixAccount_uid']) $errors[] = array('WARN', _('Username'), _('Username in use. Selected next free username.'));
// Check if UID is valid. If none value was entered, the next useable value will be inserted
// load min and may uidNumber
if ($this->type=='user') {
$minID = intval($_SESSION['config']->get_minUID());
$maxID = intval($_SESSION['config']->get_maxUID());
}
else {
$minID = intval($_SESSION['config']->get_minMachine());
$maxID = intval($_SESSION['config']->get_maxMachine());
}
// *** fixme create getcache function
$uids = getcache('uidNumber', 'posixAccount', '*');
if(is_array($uids)) sort ($uids, SORT_NUMERIC);
if ($this->uidNumber=='') {
// No id-number given
if ($this->orig['uidNumber']=='') {
// new account -> we have to find a free id-number
if (count($uids)!=0) {
// There are some uids
// Store highest id-number
$id = $uids[count($uids)-1];
// Return minimum allowed id-number if all found id-numbers are too low
if ($id < $minID) $this->uidNumber = $minID;
// Return higesht used id-number + 1 if it's still in valid range
if ($id < $maxID) $this->uidNumber = $id+1;
/* If this function is still running we have to fid a free id-number between
* the used id-numbers
*/
$i = intval($minID);
while (in_array($i, $uids)) $i++;
if ($i>$maxID)
$errors[] = array('ERROR', _('ID-Number'), _('No free ID-Number!')))));
else {
$this->uidNumber = $i;
$errors[] = array('WARN', _('ID-Number'), _('It is possible that this ID-number is reused. This can cause several problems because files with old permissions might still exist. To avoid this warning set maxUID to a higher value.'));
}
}
else $this->uidNumber = $minID;
// return minimum allowed id-number if no id-numbers are found
}
else $this->uidNumber = $this->orig['uidNumber'];
// old account -> return id-number which has been used
}
else {
// Check manual ID
// id-number is out of valid range
if ( $this->uidNumber < $minID || $this->uidNumber > $maxID) $errors[] = array('ERROR', _('ID-Number'), sprintf(_('Please enter a value between %s and %s!'), $minID, $maxID));
// $uids is allways an array but not if no entries were found
if (is_array($uids)) {
// id-number is in use and account is a new account
if ((in_array($this->uidNumber, $uids)) && $this->orig['uidNumber']=='') $errors[] = array('ERROR', _('ID-Number'), _('ID is already in use'));
// id-number is in use, account is existing account and id-number is not used by itself
if ((in_array($this->uidNumber, $uids)) && $this->orig['uidNumber']!='' && ($this->orig['uidNumber'] != $this->uidNumber) ) {
$errors[] = array('ERROR', _('ID-Number'), _('ID is already in use'));
$this->uidNumber = $this->orig['uidNumber'];
}
}
}
// Check if Homedir is valid
$this->homeDirectory = str_replace('$group', getgrnam($this->gidNumber), $this->homeDirectory);
if ($this->uid != '')
$this->homeDirectory = str_replace('$user', $this->uid, $this->homeDirectory);
if ($this->homeDirectory != $_POST['form_posixAccount_homeDirectory']) $errors[] = array('INFO', _('Home directory'), _('Replaced $user or $group in homedir.'));
if ( !ereg('^[/]([a-z]|[A-Z])([a-z]|[A-Z]|[0-9]|[.]|[-]|[_])*([/]([a-z]|[A-Z])([a-z]|[A-Z]|[0-9]|[.]|[-]|[_])*)*$', $this->homeDirectory ))
$errors[] = array('ERROR', _('Home directory'), _('Homedirectory contains invalid characters.'));
// Check if Name-length is OK. minLength=3, maxLength=20
if ( !ereg('.{3,20}', $this->uid)) $errors[] = array('ERROR', _('Name'), _('Name must contain between 3 and 20 characters.'));
// Check if Name starts with letter
if ( !ereg('^([a-z]|[A-Z]).*$', $this->uid))
$errors[] = array('ERROR', _('Name'), _('Name contains invalid characters. First character must be a letter'));
// Check if password is OK
if (!ereg('^([a-z]|[A-Z]|[0-9]|[\|]|[\#]|[\*]|[\,]|[\.]|[\;]|[\:]|[\_]|[\-]|[\+]|[\!]|[\%]|[\&]|[\/]|[\?]|[\{]|[\[]|[\(]|[\)]|[\]]|[\}])*$', $this->userPassword()))
$errors[] = array('ERROR', _('Password'), _('Password contains invalid characters. Valid characters are: a-z, A-Z, 0-9 and #*,.;:_-+!$%&/|?{[()]}= !'));
// Display errir-messages
if (is_array($errors)) {
for ($i=0; $i<count($errors); $i++) StatusMessage($errors[$i][0], $errors[$i][1], $errors[$i][2]);
// Return error-code
return -1;
}
else {
// Go to additional group page when no error did ocour and button was pressed
if ($_POST['form_posixAccount_addgroup']) return 'group';
else return 0;
}
}
/* This function loads all attributes into the object
* $attr is an array as it's retured from ldap_get_attributes
*/
function load_attributes($attr) {
}
/* This function returns an array with 3 entries:
* array( 'add' => array($attr), 'remove' => array($attr), 'modify' => array($attr) )
* add are attributes which have to be added to ldap entry
* remove are attributes which have to be removed from ldap entry
* modify are attributes which have to been modified in ldap entry
*/
function save_attributes() {
}
/* This function returns all ldap attributes
* which are part of posixAccount and returns
* also their values.
*/
function get_attributes() {
}
/* This function will create the html-page
* to show a page with all attributes.
* It will output a complete html-table
*/
function display_html_attributes() {
$groups = findgroups(); // list of all groupnames
$shelllist = getshells(); // list of all valid shells
echo "<table border=0 width=\"100%\">\n<tr>\n";
echo '<td>' . _('Username') . "*</td>\n";
echo "<td><input name=\"form_posixAccount_uid\" type=\"text\" size=\"20\" maxlength=\"20\" value=\"$this->uid\"></td>\n";
echo "<td><a href=\"../help.php?HelpNumber=400\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td>" . _('UID number') . "</td>\n";
echo "<td><input name=\"form_posixAccout_uidNumber\" type=\"text\" size=\"6\" maxlength=\"6\" value=\"$this->uidNumber\"></td>\n";
echo "<td><a href=\"../help.php?HelpNumber=401\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td>" . _('Primary group') . "*</td>\n";
echo "<td><select name=\"form_posixAccount_group\">";
// loop trough existing groups
foreach ($groups as $group)
if (getgrnam($this->gidNumber) == $group) echo "<option selected> $group </option>\n";
else echo "<option> $group </option>\n";
echo "</select></td>\n";
echo "<td><a href=\"../help.php?HelpNumber=406\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
echo "</tr>\n";
if ($this->type=='user') {
echo "<tr>\n";
echo "<td>" . _('Additional groups') . "</td>\n";
echo "<td><input name=\"form_posixAccount_addgroup\" type=\"submit\" value=\"" . _('Edit groups') . "\"></td>\n";
echo "<td><a href=\"../help.php?HelpNumber=402\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td>" . _('Home directory') . "*</td>\n";
echo "<td><input name=\"form_posixAccount_homeDirectory\" type=\"text\" size=\"30\" maxlength=\"255\" value=\"$this->homeDirectory\"></td>\n";
echo "<td><a href=\"../help.php?HelpNumber=403\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
echo "</tr>\n";
}
echo "<tr>\n";
echo "<td>" . _('Gecos') . "</td>\n";
echo "<td><input name=\"form_posixAccount_gecos\" type=\"text\" size=\"30\" maxlength=\"255\" value=\"$this->gecos\"></td>\n";
echo "<td><a href=\"../help.php?HelpNumber=404\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td>" . _('Description') . "</td>\n";
echo "<td><input name=\"form_posixAccount_description\" type=\"text\" size=\"30\" maxlength=\"255\" value=\"$this->description\"></td>\n";
echo "<td><a href=\"../help.php?HelpNumber=404\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
echo "</tr>\n";
if ($this->type=='user') {
if (count($shelllist)!=0) {
echo "<tr>\n";
echo "<td>" . _('Login shell') . "*</td>\n";
echo "<td><select name=\"form_posixAccount_loginShell\">";
// loop through shells
foreach ($shelllist as $shell)
if ($this->loginShell==trim($shell)) echo "<option selected> $shell </option>\n";
else echo "<option> $shell </option>\n";
echo "</select></td>\n";
echo "<td><a href=\"../help.php?HelpNumber=405\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
echo "</tr>\n";
}
echo "<tr>\n";
echo "<td>" . _('Password') . "</td>\n";
echo "<td><input name=\"form_posixAccount_userPassword\" type=\"password\" size=\"20\" maxlength=\"20\" value=\"$this->userPassword()\"></td>\n";
echo "<td><input name=\"form_posixAccount_genpass\" type=\"submit\" value=\"" . _('Generate password') . "\"></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td>" . _('Repeat password') . "</td>\n";
echo "<td><input name=\"form_posixAccount_userPassword2\" type=\"password\" size=\"20\" maxlength=\"20\" value=\"";
if (isset($_POST['form_posixAccount_userPassword2'])) echo $_POST['form_posixAccount_userPassword2'];
else echo $this->userPassword();
echo "\"></td>\n";
echo "<td></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td>" . _('Use no password') . "</td>\n";
echo "<td><input name=\"form_posixAccount_userPassword_no\" type=\"checkbox\"";
if ($this->userPassword_no) echo " checked ";
echo "></td>\n";
echo "<td><a href=\"../help.php?HelpNumber=426\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
echo "</tr>\n";
}
echo "</table>\n";
return 0;
}
function display_html_group() {
// load list with all groups
$groups = getcache('uidNumber', 'posixGroup', 'group');
// sort groups
sort($groups, SORT_STRING);
// remove groups the user is member of from grouplist
$groups = array_delete($this->groups, $groups);
// *** fixme primary group mut also be removed if it has changed after setting additional groups
// Remove primary group from grouplist
$groups = array_flip($groups);
if (isset($groups[getgrnam($this->gidNumber)])) unset ($groups[getgrnam($this->gidNumber)]);
$groups = array_flip($groups);
echo "<table border=0 width=\"100%\">\n<tr>\n";
echo "<td><fieldset class=\"useredit-bright\">";
echo "<legend class=\"useredit-bright\"><b>" . _("Additional groups") . "</b></legend>\n";
echo "<table border=0 width=\"100%\">\n<tr>\n";
echo "<td valign=\"top\">";
echo "<fieldset class=\"useredit-bright\">";
echo "<legend class=\"useredit-bright\">" . _("Selected groups") . "</legend>\n";
// Show all groups the user is additional member of
if (count($this->groups)!=0) {
echo "<select name=\"form_posixAccount_removegroups[]\" class=\"useredit-bright\" size=15 multiple>\n";
for ($i=0; $i<count($this->groups); $i++)
if ($this->groups[$i]!='') echo "<option> $this->groups[$i] </option>\n";
echo "</select>\n";
}
echo "</fieldset></td>\n";
echo "<td align=\"center\" width=\"10%\"><input type=\"submit\" name=\"form_posixAccount_addgroups_button\" value=\"<=\">";
echo " ";
echo "<input type=\"submit\" name=\"form_posixAccount_removegroups_button\" value=\"=>\"><br><br>";
echo "<a href=\""."../help.php?HelpNumber=402\" target=\"lamhelp\">"._('Help')."</a></td>\n";
echo "<td valign=\"top\">\n";
echo "<fieldset class=\"useredit-bright\">";
echo "<legend class=\"useredit-bright\">" . _('Available groups') . "</legend>\n";
// show all groups expect these the user is member of
if (count($groups)!=0) {
echo "<select name=\"form_posixAccount_addgroups[]\" size=15 multiple class=\"useredit-bright\">\n";
for ($i=0; $i<count($groups); $i++)
if ($groups[$i]!='') echo "<option> $groups[$i] </option>\n";
echo "</select>\n";
}
echo "</fieldset></td>\n";
echo "</tr>\n";
echo "</table>\n";
echo "<input name=\"next_general\" type=\"submit\" value=\""; echo _('Back'); echo "\">\n";
echo "</fieldset>\n";
echo "</td></tr></table>\n";
return 0;
}
function process_groups() {
do { // X-Or, only one if() can be true
if (isset($_POST['form_posixAccount_addgroups']) && isset($_POST['form_posixAccount_addgroups_button'])) { // Add groups to list
// Add new group
$this->groups = @array_merge($this->groups, $_POST['allgroups']);
// remove doubles
$this->groups = @array_flip($this->groups);
array_unique($this->groups);
$this->groups = @array_flip($this->groups);
// sort groups
sort($this->groups);
break;
}
if (isset($_POST['form_posixAccount_removegroups']) && isset($_POST['form_posixAccount_removegroups_button'])) { // remove groups from list
$this->groups = array_delete($_POST['form_posixAccount_removegroups'], $this->groups);
break;
}
} while(0);
return 0;
}
}
?>