335 lines
10 KiB
PHP
335 lines
10 KiB
PHP
<?php
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namespace LAM\UPLOAD;
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use ZipArchive;
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use accountContainer;
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/*
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$Id$
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This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
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Copyright (C) 2016 - 2018 Roland Gruber
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/**
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* Creates LDAP accounts for file upload.
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*
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* @author Roland Gruber
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* @package tools
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*/
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/** LDAP handle */
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include_once('ldap.inc');
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/** PDF */
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include_once('pdf.inc');
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/**
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* Creates LDAP accounts for file upload.
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*
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* @author Roland Gruber
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* @package tools
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*/
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class Uploader {
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private $accounts = null;
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private $data = null;
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private $type = null;
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private $endTime;
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const TIME_LIMIT = 10;
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public static function cleanSession() {
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foreach ($_SESSION as $key => &$value) {
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if (strpos($key, 'mass_') === 0) {
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unset($_SESSION[$key]);
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}
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}
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}
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/**
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* Constructor
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*
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* @param \LAM\TYPES\ConfiguredType $type account type
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*/
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public function __construct($type) {
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$this->accounts = unserialize(lamDecrypt($_SESSION['mass_accounts']));
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$this->data = unserialize(lamDecrypt($_SESSION['mass_data']));
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$this->type = $type;
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$startTime = time();
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$maxTime = get_cfg_var('max_execution_time') - 5;
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if ($maxTime > Uploader::TIME_LIMIT) $maxTime = Uploader::TIME_LIMIT;
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if ($maxTime <= 0) $maxTime = Uploader::TIME_LIMIT;
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$this->endTime = $startTime + $maxTime;
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}
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/**
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* Start or continues the file upload.
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*
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* @return String JSON of upload status
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*/
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public function doUpload() {
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$this->securityCheck();
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if (!isset($_SESSION['mass_counter'])) {
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return $this->startUpload();
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}
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elseif ($_SESSION['mass_counter'] < sizeof($this->accounts)) {
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return $this->continueUpload();
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}
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elseif (!isset($_SESSION['mass_postActions']['finished'])) {
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return $this->runPostActions();
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}
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elseif (($_SESSION['mass_pdf']['structure'] != null) && !isset($_SESSION['mass_pdf']['finished'])) {
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return $this->createPDF();
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}
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return $this->buildUploadStatus(100, true, '', 100, true, 100);
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}
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/**
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* Continues to upload accounts.
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*
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* @return String JSON of upload status
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*/
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private function continueUpload() {
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while (($_SESSION['mass_counter'] < sizeof($this->accounts)) && ($this->endTime > time())) {
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$this->uploadEntry($_SESSION['mass_counter']);
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$_SESSION['mass_counter']++;
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}
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$accountsProgress = round(($_SESSION['mass_counter'] * 100) / sizeof($this->accounts), 2);
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$accountsFinished = ($_SESSION['mass_counter'] == sizeof($this->accounts));
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return $this->buildUploadStatus($accountsProgress, $accountsFinished);
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}
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/**
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* Performs the upload of a single LDAP entry.
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*
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* @param int $position position in $this->accounts.
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*/
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private function uploadEntry($position) {
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$attrs = $this->accounts[$position];
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$dn = $attrs['dn'];
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unset($attrs['dn']);
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// remove informational attributes
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foreach ($attrs as $key => $value) {
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if (strpos($key, 'INFO.') === 0) {
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unset($attrs[$key]);
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}
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}
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// run preactions
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$preAttributes = array();
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foreach ($attrs as $key => $value) {
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$preAttributes[$key] = &$attrs[$key];
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}
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$preAttributes['dn'] = &$dn;
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$preMessages = doUploadPreActions($this->type, $_SESSION['mass_selectedModules'], $preAttributes);
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$preActionOk = true;
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for ($i = 0; $i < sizeof($preMessages); $i++) {
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if (($preMessages[$i][0] == 'ERROR') || ($preMessages[$i][0] == 'WARN')) {
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$preActionOk = false;
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$_SESSION['mass_errors'][] = $preMessages[$i];
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}
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}
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if ($preActionOk) {
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$errors = $this->deleteOldEntryIfNeeded($dn, $this->accounts[$position]);
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if (!empty($errors)) {
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$_SESSION['mass_errors'] = array_merge($_SESSION['mass_errors'], $errors);
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$_SESSION['mass_failed'][] = $position;
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return;
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}
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// add LDAP entry
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$success = @ldap_add($_SESSION['ldap']->server(), $dn, $attrs);
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if (!$success) {
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$errorMessage = array(
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"ERROR",
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_("LAM was unable to create account %s! An LDAP error occured."),
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getDefaultLDAPErrorString($_SESSION['ldap']->server()),
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array($position));
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$_SESSION['mass_errors'][] = $errorMessage;
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$_SESSION['mass_failed'][] = $position;
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}
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}
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}
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/**
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* Deletes an existing entry if overwrite option is used.
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*
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* @param string $dn DN
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* @param array $attributes attribute list
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* @return array list of error messages
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*/
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private function deleteOldEntryIfNeeded($dn, $attributes) {
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if (isset($attributes['INFO.overwrite']) && ($attributes['INFO.overwrite'] === 'true')) {
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$attrs = ldapGetDN($dn, array('dn'));
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if ($attrs !== null) {
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return deleteDN($dn, true);
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}
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}
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return array();
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}
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/**
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* Starts the file upload.
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*
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* @return String JSON of upload status
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*/
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private function startUpload() {
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$_SESSION['mass_counter'] = 0;
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return $this->buildUploadStatus();
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}
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/**
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* Returns the upload status as JSON.
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*
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* @param number $accountsProgress progress for LDAP entries
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* @param string $accountsFinished all entries in LDAP
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* @param string $postActionsTitle title for current post action
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* @param number $postActionsProgress progress for post actions
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* @param string $postActionsFinished post actions finished
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* @param number $pdfProgress PDF creation progress
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* @return String JSON status
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*/
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private function buildUploadStatus($accountsProgress = 0, $accountsFinished = false,
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$postActionsTitle = '', $postActionsProgress = 0, $postActionsFinished = false,
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$pdfProgress = 0) {
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$pdfFinished = ($_SESSION['mass_pdf']['structure'] == null) || isset($_SESSION['mass_pdf']['finished']);
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$allDone = $accountsFinished && $postActionsFinished && $pdfFinished;
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$errorHtml = '';
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if ($allDone && !empty($_SESSION['mass_errors'])) {
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foreach ($_SESSION['mass_errors'] as $error) {
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$text = isset($error[2]) ? $error[2] : '';
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$vars = isset($error[3]) ? $error[3] : array();
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$errorHtml .= StatusMessage($error[0], $error[1], $text, $vars, true);
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}
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}
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$status = array(
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'title' => _("LDAP upload in progress. Please wait."),
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'titleFinished' => _("Upload has finished"),
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'titleErrors' => _("There were errors while uploading:"),
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'titlePDF' => _('Create PDF files'),
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'accountsProgress' => $accountsProgress,
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'accountsFinished' => $accountsFinished,
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'postActionsTitle' => $postActionsTitle,
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'postActionsProgress' => $postActionsProgress,
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'postActionsFinished' => $postActionsFinished,
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'pdfProgress' => $pdfProgress,
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'pdfFinished' => $pdfFinished,
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'allDone' => $allDone,
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'errorHtml' => $errorHtml,
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'typeId' => $this->type->getId()
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);
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return json_encode($status);
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}
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/**
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* Checks for security violations and stops processing if needed.
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*/
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private function securityCheck() {
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if (!isLoggedIn() || empty($this->type)
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|| $this->type->isHidden()
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|| !checkIfNewEntriesAreAllowed($this->type->getId())
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|| !checkIfWriteAccessIsAllowed($this->type->getId())) {
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die;
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}
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}
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/**
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* Performs any post create actions by modules.
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*
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* @return String JSON of upload status
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*/
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private function runPostActions() {
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$return = $this->runModulePostActions();
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while (!isset($_SESSION['mass_postActions']['finished']) && ($this->endTime > time())) {
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$return = $this->runModulePostActions();
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}
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$title = _("Additional tasks for module:") . ' ' . getModuleAlias($return['module'], $this->type->getScope());
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$progress = round($return['progress'], 2);
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$finished = isset($_SESSION['mass_postActions']['finished']);
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return $this->buildUploadStatus(100, true, $title, $progress, $finished);
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}
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/**
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* Runs a single post create action by modules.
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*
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* @return array status array
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*/
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private function runModulePostActions() {
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$return = doUploadPostActions($this->type, $this->data, $_SESSION['mass_ids'], $_SESSION['mass_failed'], $_SESSION['mass_selectedModules'], $this->accounts);
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if ($return['status'] == 'finished') {
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$_SESSION['mass_postActions']['finished'] = true;
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}
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if (isset($return['errors'])) {
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for ($i = 0; $i < sizeof($return['errors']); $i++) {
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$_SESSION['mass_errors'][] = $return['errors'][$i];
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}
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}
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return $return;
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}
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/**
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* Creates the PDF files.
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*
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* @return String JSON of upload status
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*/
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private function createPDF() {
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$file = $_SESSION['mass_pdf']['file'];
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$pdfStructure = $_SESSION['mass_pdf']['structure'];
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$font = $_SESSION['mass_pdf']['font'];
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$pdfZip = new ZipArchive();
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if ($_SESSION['mass_pdf']['counter'] == 0) {
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$pdfZipResult = @$pdfZip->open($_SESSION['mass_pdf']['file'], ZipArchive::CREATE);
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if (!$pdfZipResult === true) {
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$_SESSION['mass_errors'][] = array('ERROR', _('Unable to create ZIP file for PDF export.'), $file);
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$_SESSION['mass_pdf']['finished'] = true;
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}
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}
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else {
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@$pdfZip->open($_SESSION['mass_pdf']['file']);
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}
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while (!isset($_SESSION['mass_pdf']['finished']) && ($this->endTime > time())) {
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$attrs = $this->accounts[$_SESSION['mass_pdf']['counter']];
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$dn = $attrs['dn'];
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// get informational attributes
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$infoAttributes = array();
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foreach ($attrs as $key => $value) {
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if (strpos($key, 'INFO.') === 0) {
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$infoAttributes[$key] = $value;
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}
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}
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// load account
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$typeManager = new \LAM\TYPES\TypeManager();
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$_SESSION['mass_pdfAccount'] = new accountContainer($this->type, 'mass_pdfAccount');
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$pdfErrors = $_SESSION['mass_pdfAccount']->load_account($dn, $infoAttributes);
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if (sizeof($pdfErrors) > 0) {
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$_SESSION['mass_errors'] = array_merge($_SESSION['mass_errors'], $pdfErrors);
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$_SESSION['mass_pdf']['finished'] = true;
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break;
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}
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// create and save PDF
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$pdfContent = \LAM\PDF\createModulePDF(array($_SESSION['mass_pdfAccount']), $pdfStructure, $font, true);
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$fileName = $dn . '.pdf';
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$pdfZip->addFromString($fileName, $pdfContent);
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$_SESSION['mass_pdf']['counter'] ++;
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if ($_SESSION['mass_pdf']['counter'] >= sizeof($this->accounts)) {
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$_SESSION['mass_pdf']['finished'] = true;
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}
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}
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@$pdfZip->close();
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$progress = ($_SESSION['mass_pdf']['counter'] * 100) / sizeof($this->accounts);
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return $this->buildUploadStatus(100, true, '', 100, true, $progress);
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}
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}
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