LDAPAccountManager/lam/lib/upload.inc

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<?php
namespace LAM\UPLOAD;
use ZipArchive;
use accountContainer;
/*
$Id$
This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
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Copyright (C) 2016 - 2017 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
*/
/**
* Creates LDAP accounts for file upload.
*
* @author Roland Gruber
* @package tools
*/
/** LDAP handle */
include_once('ldap.inc');
/** PDF */
include_once('pdf.inc');
/**
* Creates LDAP accounts for file upload.
*
* @author Roland Gruber
* @package tools
*/
class Uploader {
private $accounts = null;
private $data = null;
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private $type = null;
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private $endTime;
const TIME_LIMIT = 10;
public static function cleanSession() {
foreach ($_SESSION as $key => &$value) {
if (strpos($key, 'mass_') === 0) {
unset($_SESSION[$key]);
}
}
}
/**
* Constructor
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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']));
$this->data = unserialize(lamDecrypt($_SESSION['mass_data']));
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$this->type = $type;
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$startTime = time();
$maxTime = get_cfg_var('max_execution_time') - 5;
if ($maxTime > Uploader::TIME_LIMIT) $maxTime = Uploader::TIME_LIMIT;
if ($maxTime <= 0) $maxTime = Uploader::TIME_LIMIT;
$this->endTime = $startTime + $maxTime;
}
/**
* Start or continues the file upload.
*
* @return String JSON of upload status
*/
public function doUpload() {
$this->securityCheck();
if (!isset($_SESSION['mass_counter'])) {
return $this->startUpload();
}
elseif ($_SESSION['mass_counter'] < sizeof($this->accounts)) {
return $this->continueUpload();
}
elseif (!isset($_SESSION['mass_postActions']['finished'])) {
return $this->runPostActions();
}
elseif (($_SESSION['mass_pdf']['structure'] != null) && !isset($_SESSION['mass_pdf']['finished'])) {
return $this->createPDF();
}
return $this->buildUploadStatus(100, true, '', 100, true, 100);
}
/**
* Continues to upload accounts.
*
* @return String JSON of upload status
*/
private function continueUpload() {
while (($_SESSION['mass_counter'] < sizeof($this->accounts)) && ($this->endTime > time())) {
$this->uploadEntry($_SESSION['mass_counter']);
$_SESSION['mass_counter']++;
}
$accountsProgress = round(($_SESSION['mass_counter'] * 100) / sizeof($this->accounts), 2);
$accountsFinished = ($_SESSION['mass_counter'] == sizeof($this->accounts));
return $this->buildUploadStatus($accountsProgress, $accountsFinished);
}
/**
* Performs the upload of a single LDAP entry.
*
* @param int $position position in $this->accounts.
*/
private function uploadEntry($position) {
$attrs = $this->accounts[$position];
$dn = $attrs['dn'];
unset($attrs['dn']);
// remove informational attributes
foreach ($attrs as $key => $value) {
if (strpos($key, 'INFO.') === 0) {
unset($attrs[$key]);
}
}
// run preactions
$preAttributes = array();
foreach ($attrs as $key => $value) {
$preAttributes[$key] = &$attrs[$key];
}
$preAttributes['dn'] = &$dn;
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$preMessages = doUploadPreActions($this->type->getScope(), $_SESSION['mass_selectedModules'], $preAttributes);
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$preActionOk = true;
for ($i = 0; $i < sizeof($preMessages); $i++) {
if (($preMessages[$i][0] == 'ERROR') || ($preMessages[$i][0] == 'WARN')) {
$preActionOk = false;
$_SESSION['mass_errors'][] = $preMessages[$i];
}
}
if ($preActionOk) {
// add LDAP entry
$success = @ldap_add($_SESSION['ldap']->server(), $dn, $attrs);
if (!$success) {
$errorMessage = array(
"ERROR",
_("LAM was unable to create account %s! An LDAP error occured."),
getDefaultLDAPErrorString($_SESSION['ldap']->server()),
array($position));
$_SESSION['mass_errors'][] = $errorMessage;
$_SESSION['mass_failed'][] = $position;
}
}
}
/**
* Starts the file upload.
*
* @return String JSON of upload status
*/
private function startUpload() {
$_SESSION['mass_counter'] = 0;
return $this->buildUploadStatus();
}
/**
* Returns the upload status as JSON.
*
* @param number $accountsProgress progress for LDAP entries
* @param string $accountsFinished all entries in LDAP
* @param string $postActionsTitle title for current post action
* @param number $postActionsProgress progress for post actions
* @param string $postActionsFinished post actions finished
* @param number $pdfProgress PDF creation progress
* @return String JSON status
*/
private function buildUploadStatus($accountsProgress = 0, $accountsFinished = false,
$postActionsTitle = '', $postActionsProgress = 0, $postActionsFinished = false,
$pdfProgress = 0) {
$pdfFinished = ($_SESSION['mass_pdf']['structure'] == null) || isset($_SESSION['mass_pdf']['finished']);
$allDone = $accountsFinished && $postActionsFinished && $pdfFinished;
$errorHtml = '';
if ($allDone && !empty($_SESSION['mass_errors'])) {
foreach ($_SESSION['mass_errors'] as $error) {
$text = isset($error[2]) ? $error[2] : '';
$vars = isset($error[3]) ? $error[3] : array();
$errorHtml .= StatusMessage($error[0], $error[1], $text, $vars, true);
}
}
$status = array(
'title' => _("LDAP upload in progress. Please wait."),
'titleFinished' => _("Upload has finished"),
'titleErrors' => _("There were errors while uploading:"),
'titlePDF' => _('Create PDF files'),
'accountsProgress' => $accountsProgress,
'accountsFinished' => $accountsFinished,
'postActionsTitle' => $postActionsTitle,
'postActionsProgress' => $postActionsProgress,
'postActionsFinished' => $postActionsFinished,
'pdfProgress' => $pdfProgress,
'pdfFinished' => $pdfFinished,
'allDone' => $allDone,
'errorHtml' => $errorHtml,
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'typeId' => $this->type->getId()
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);
return json_encode($status);
}
/**
* Checks for security violations and stops processing if needed.
*/
private function securityCheck() {
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if (!isLoggedIn() || empty($this->type)
|| $this->type->isHidden()
|| !checkIfNewEntriesAreAllowed($this->type->getId())
|| !checkIfWriteAccessIsAllowed($this->type->getId())) {
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die;
}
}
/**
* Performs any post create actions by modules.
*
* @return String JSON of upload status
*/
private function runPostActions() {
$return = $this->runModulePostActions();
while (!isset($_SESSION['mass_postActions']['finished']) && ($this->endTime > time())) {
$return = $this->runModulePostActions();
}
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$title = _("Additional tasks for module:") . ' ' . getModuleAlias($return['module'], $this->type->getScope());
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$progress = round($return['progress'], 2);
$finished = isset($_SESSION['mass_postActions']['finished']);
return $this->buildUploadStatus(100, true, $title, $progress, $finished);
}
/**
* Runs a single post create action by modules.
*
* @return array status array
*/
private function runModulePostActions() {
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$return = doUploadPostActions($this->type->getScope(), $this->data, $_SESSION['mass_ids'], $_SESSION['mass_failed'], $_SESSION['mass_selectedModules'], $this->accounts);
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if ($return['status'] == 'finished') {
$_SESSION['mass_postActions']['finished'] = true;
}
if (isset($return['errors'])) {
for ($i = 0; $i < sizeof($return['errors']); $i++) {
$_SESSION['mass_errors'][] = $return['errors'][$i];
}
}
return $return;
}
/**
* Creates the PDF files.
*
* @return String JSON of upload status
*/
private function createPDF() {
$file = $_SESSION['mass_pdf']['file'];
$pdfStructure = $_SESSION['mass_pdf']['structure'];
$pdfZip = new ZipArchive();
if ($_SESSION['mass_pdf']['counter'] == 0) {
$pdfZipResult = @$pdfZip->open($_SESSION['mass_pdf']['file'], ZipArchive::CREATE);
if (!$pdfZipResult === true) {
$_SESSION['mass_errors'][] = array('ERROR', _('Unable to create ZIP file for PDF export.'), $file);
$_SESSION['mass_pdf']['finished'] = true;
}
}
else {
@$pdfZip->open($_SESSION['mass_pdf']['file']);
}
while (!isset($_SESSION['mass_pdf']['finished']) && ($this->endTime > time())) {
$attrs = $this->accounts[$_SESSION['mass_pdf']['counter']];
$dn = $attrs['dn'];
// get informational attributes
$infoAttributes = array();
foreach ($attrs as $key => $value) {
if (strpos($key, 'INFO.') === 0) {
$infoAttributes[$key] = $value;
}
}
// load account
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$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, $infoAttributes);
if (sizeof($pdfErrors) > 0) {
$_SESSION['mass_errors'] = array_merge($_SESSION['mass_errors'], $pdfErrors);
$_SESSION['mass_pdf']['finished'] = true;
break;
}
// create and save PDF
$pdfContent = createModulePDF(array($_SESSION['mass_pdfAccount']), $pdfStructure, true);
$fileName = $dn . '.pdf';
$pdfZip->addFromString($fileName, $pdfContent);
$_SESSION['mass_pdf']['counter'] ++;
if ($_SESSION['mass_pdf']['counter'] >= sizeof($this->accounts)) {
$_SESSION['mass_pdf']['finished'] = true;
}
}
@$pdfZip->close();
$progress = ($_SESSION['mass_pdf']['counter'] * 100) / sizeof($this->accounts);
return $this->buildUploadStatus(100, true, '', 100, true, $progress);
}
}