<?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
*/


class quota {
	// Constructor
	function quota($base) {
		$this->base = $base;
		if (!$base) trigger_error(_('Please create a base object with $var = new accountContainer();'), E_USER_ERROR);
		if (!is_string($base)) trigger_error(_('Please create a new module object with $accountContainer->add_objectClass(\'quota\');'), E_USER_ERROR);
		// quota is only a valid objectClass for user and host
		if (!($_SESSION[$this->base]->get_type() == 'user') && !($_SESSION[$this->base]->get_type() == 'group')) trigger_error(_('quota can only be used for users or groups.'), E_USER_WARNING);
		/* Check if ldap conatiner is in array and set type
		* users are using inetOrgPerson-, hosts account-container
		*/
		if (!isset($_SESSION[$this->base]->module['posixAccount']) && $_SESSION[$this->base]->type=='user') $_SESSION[$this->base]->add_objectClass('posixAccount');
		if (!isset($_SESSION[$this->base]->module['posixGroup']) && $_SESSION[$this->base]->type=='group') $_SESSION[$this->base]->add_objectClass('posixGroup');
		// Get basic quotas for new account
		$output_array = $_SESSION[$this->base]->lamdaemon(array("+ quota get " . $_SESSION[$this->base]->type));
		// process quotas
		if (is_array($output_array)) {
			$all_quota = explode(':', $output_array[0]);
			for ($j=0; $j<sizeof($all_quota)-1; $j++) {
				$single_quota = explode(',', $all_quota[$j]);
				// unset not existing quotas from account-object
				// collect all existing mountpoints in array
				$real_quotas[] = $single_quota[0];
				for ($k=0; $k<sizeof($single_quota); $k++)
					$this->quota[$j][$k] = $single_quota[$k];
				if ($this->quota[$j][4]<time()) $this->quota[$j][4] = '';
					else $this->quota[$j][4] = strval(intval(($this->quota[$j][4]-time())/3600)) .' '. _('hours');
				if ($this->quota[$j][8]<time()) $this->quota[$j][8] = '';
					else $this->quota[$j][8] = strval(intval(($this->quota[$j][8]-time())/3600)) .' '. _('hours');
				}
			$j=0;
			while (isset($this->quota[$j][0]))
				// remove invalid quotas
				if (!in_array($this->quota[$j][0], $real_quotas)) unset($this->quota[$j]);
					else $j++;
			// Beautify array, repair index
			if (is_array($this->quota)) $this->quota = array_values($this->quota);
			}
		}

	// Variables
	// name of accountContainer so we can read other classes in accuontArray
	var $base;

	var $quota;

	function get_alias() {
		return _('quota');
		}

	/* This function returns a list with all required modules
	*/
	function get_dependencies($scope) {
		if ($scope=='group') return array('require' => array('posixGroup'), 'conflict' => array() );
		if ($scope=='user') return array('require' => array('posixAccount'), 'conflict' => array() );
		return -1;
		}

	function module_ready() {
		if (!isset($_SESSION[$_SESSION[$this->base]->config]->scriptPath)) return $false;
		if ($_SESSION[$this->base]->type=='user' && $_SESSION[$this->base]->module['posixAccount']->attributes['uid'][0]=='') return false;
		if ($_SESSION[$this->base]->type=='group' && $_SESSION[$this->base]->module['posixGroup']->attributes['cn'][0]=='') return false;
		return true;
		}

	/* This function returns a list of all html-pages in module
	* This is usefull for mass upload and pdf-files
	* because lam can walk trough all pages itself and do some
	* error checkings
	*/
	function pages() {
		return array('attributes');
		}

	/* This function returns all ldap attributes
	* which are part of quota and returns
	* also their values.
	*/
	function get_attributes() {
		return $this->quota;
		}

	/* This function loads all attributes into the object
	* $attr is an array as it's retured from ldap_get_attributes
	*/
	function load_attributes($attr) {
		// Load name
		if ($_SESSION[$this->base]->type=='user') $id = $attr['uid'][0];
		if ($_SESSION[$this->base]->type=='group') $id = $attr['cn'][0];
		// Get quotas
		$output_array = $_SESSION[$this->base]->lamdaemon(array("$id quota get " . $_SESSION[$this->base]->type));
		// process quotas
		if (is_array($output_array)) {
			$all_quota = explode(':', $output_array[0]);
			for ($j=0; $j<sizeof($all_quota)-1; $j++) {
				$single_quota = explode(',', $all_quota[$j]);
				// unset not existing quotas from account-object
				// collect all existing mountpoints in array
				$real_quotas[] = $single_quota[0];
				for ($k=0; $k<sizeof($single_quota); $k++)
					$this->quota[$j][$k] = $single_quota[$k];
				if ($this->quota[$j][4]<time()) $this->quota[$j][4] = '';
					else $this->quota[$j][4] = strval(intval(($this->quota[$j][4]-time())/3600)) .' '. _('hours');
				if ($this->quota[$j][8]<time()) $this->quota[$j][8] = '';
					else $this->quota[$j][8] = strval(intval(($this->quota[$j][8]-time())/3600)) .' '. _('hours');
				}
			$j=0;
			while (isset($this->quota[$j][0]))
				// remove invalid quotas
				if (!in_array($this->quota[$j][0], $real_quotas)) unset($this->quota[$j]);
					else $j++;
			// Beautify array, repair index
			if (is_array($this->quota)) $this->quota = array_values($this->quota);
			}
		return 0;
		}

	/* This function returns an array with 3 entries:
	* array( DN1 ('add' => array($attr), 'remove' => array($attr), 'modify' => array($attr)), DN2 .... )
	* DN is the DN to change. It may be possible to change several DNs,
	* e.g. create a new user and add him to some groups via attribute memberUid
	* 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() {
		/* Check wich quotas have changed
		* Because we can not send an array to lamdaemon.pl we have to put all
		* values in a string. ':' sepraeates the first array, ',' the second
		*
		* $values->quota[][] First array is an index for every chare with active quotas
		* second array Contains values for every share:
		* mountpoint, used blocks, soft block limit, hard block limit, grace block period, used inodes,
		* soft inode limit, hard inode limit, grace inode period
		*/

		$i=0;
		while ($this->quota[$i][0]) {
			$quotastring = $quotastring . $this->quota[$i][0] . ',' . $this->quota[$i][2] . ',' . $this->quota[$i][3]
				. ',' . $this->quota[$i][6] . ',' . $this->quota[$i][7] . ':';
			$i++;
			}

		if ($_SESSION[$this->base]->type=='user') $id = $_SESSION[$this->base]->module['posixAccount']->attributes['uid'][0];
		if ($_SESSION[$this->base]->type=='group') $id = $_SESSION[$this->base]->module['posixGroup']->attributes['cn'][0];
		$return[$_SESSION[$this->base]->dn]['lamdaemon']['command'][] = $id . " quota set " . $_SESSION[$this->base]->type . " $quotastring\n";

		return $return;
		}

	function delete_attributes($post) {
		$i=0;
		while ($this->quota[$i][0]) {
			$quotastring = $quotastring . $this->quota[$i][0] . ',0,0,0,0:';
			$i++;
			}
		if ($_SESSION[$this->base]->type=='user') $id = $_SESSION[$this->base]->module['posixAccount']->attributes['uid'][0];
		if ($_SESSION[$this->base]->type=='group') $id = $_SESSION[$this->base]->module['posixGroup']->attributes['cn'][0];
		$return[$_SESSION[$this->base]->dn]['lamdaemon']['command'][] = $id . " quota set " . $_SESSION[$this->base]->type . " $quotastring\n";
		return $return;
		}

	/* Write variables into object and do some regexp checks
	*/
	function proccess_attributes($post) {
		// Write all general values into $account_new
		$i=0;
		// loop for every mointpoint with quotas
		while ($this->quota[$i][0]) {
			$this->quota[$i][2] = $post[$i . '_2'];
			$this->quota[$i][3] = $post[$i . '_3'];
			$this->quota[$i][6] = $post[$i . '_6'];
			$this->quota[$i][7] = $post[$i . '_7'];
			// Check if values are OK and set automatic values. if not error-variable will be set
			if (!ereg('^([0-9])*$', $this->quota[$i][2]))
				$errors[] = array('ERROR', _('Block soft quota'), _('Block soft quota contains invalid characters. Only natural numbers are allowed'));
			if (!ereg('^([0-9])*$', $this->quota[$i][3]))
				$errors[] = array('ERROR', _('Block hard quota'), _('Block hard quota contains invalid characters. Only natural numbers are allowed'));
			if (!ereg('^([0-9])*$', $this->quota[$i][6]))
				$errors[] = array('ERROR', _('Inode soft quota'), _('Inode soft quota contains invalid characters. Only natural numbers are allowed'));
			if (!ereg('^([0-9])*$', $this->quota[$i][7]))
				$errors[] = array('ERROR', _('Inode hard quota'), _('Inode hard quota contains invalid characters. Only natural numbers are allowed'));
			if (intval($this->quota[$i][2]) > intval($this->quota[$i][3]))
				$errors[] = array('ERROR', _('Block quota'), _('Block soft quota must be smaller than block hard quota'));
			if (intval($this->quota[$i][6]) > intval($this->quota[$i][7]))
				$errors[] = array('ERROR', _('Inode quota'), _('Inode soft quota must be smaller than inode hard quota'));
			$i++;
			}

		// Return error-messages
		if (is_array($errors)) return $errors;
		// Go to additional group page when no error did ocour and button was pressed
		return 0;
		}

	/* 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($post) {
		echo "<table border=0 width=\"100%\">\n";
		echo "<tr>\n";
		echo "<td>" . _('Mountpoint') . "</td>\n";
		echo "<td>" . _('Used blocks') . "</td>\n";
		echo "<td>" . _('Soft block limit') . "</td>\n";
		echo "<td>" . _('Hard block limit') . "</td>\n";
		echo "<td>" . _('Grace block period') . "</td>\n";
		echo "<td>" . _('Used inodes') . "</td>\n";
		echo "<td>" . _('Soft inode limit') . "</td>\n";
		echo "<td>" . _('Hard inode limit') . "</td>\n";
		echo "<td>" . _('Grace inode period') . "</td>\n";
		echo "</tr>\n";
		echo "<tr>\n";
		echo "<td><a href=\"../help.php?HelpNumber=439\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
		echo "<td><a href=\"../help.php?HelpNumber=440\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
		echo "<td><a href=\"../help.php?HelpNumber=441\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
		echo "<td><a href=\"../help.php?HelpNumber=442\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
		echo "<td><a href=\"../help.php?HelpNumber=443\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
		echo "<td><a href=\"../help.php?HelpNumber=444\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
		echo "<td><a href=\"../help.php?HelpNumber=445\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
		echo "<td><a href=\"../help.php?HelpNumber=446\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
		echo "<td><a href=\"../help.php?HelpNumber=447\" target=\"lamhelp\">" . _('Help') . "</a></td>\n";
		echo "</tr>\n";

		$i=0;
		// loop for every mointpoint with enabled quotas
		while ($this->quota[$i][0]) {
			echo "<tr>\n";
			echo "<td>" . $this->quota[$i][0] . "</td>\n";
			echo "<td>" . $this->quota[$i][1] . "</td>\n"; // used blocks
			echo "<td><input name=\"" . $i . "_2\" type=\"text\" size=\"12\" maxlength=\"20\" value=\"" . $this->quota[$i][2] . "\"></td>\n"; // blocks soft limit
			echo "<td><input name=\"" . $i . "_3\" type=\"text\" size=\"12\" maxlength=\"20\" value=\"" . $this->quota[$i][3] . "\"></td>\n"; // blocks hard limit
			echo "<td>" . $this->quota[$i][4] . "</td>\n"; // block grace period
			echo "<td>" . $this->quota[$i][5] . "</td>\n"; // used inodes
			echo "<td><input name=\"" . $i . "_6\" type=\"text\" size=\"12\" maxlength=\"20\" value=\"" . $this->quota[$i][6] . "\"></td>\n"; // inodes soft limit
			echo "<td><input name=\"" . $i . "_7\" type=\"text\" size=\"12\" maxlength=\"20\" value=\"" . $this->quota[$i][7] . "\"></td>\n"; // inodes hard limit
			echo "<td>" . $this->quota[$i][8] . "</td>\n";
			echo "</tr>\n"; // inodes grace period
			$i++;
			}
		echo "</table>\n";
		return 0;
		}

	}

?>