578 lines
18 KiB
PHP
578 lines
18 KiB
PHP
<?php
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/*--------------------------------------------------------------------------------------------------------| www.vdm.io |------/
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__ __ _ _____ _ _ __ __ _ _ _
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\ \ / / | | | __ \ | | | | | \/ | | | | | | |
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\ \ / /_ _ ___| |_ | | | | _____ _____| | ___ _ __ _ __ ___ ___ _ __ | |_ | \ / | ___| |_| |__ ___ __| |
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\ \/ / _` / __| __| | | | |/ _ \ \ / / _ \ |/ _ \| '_ \| '_ ` _ \ / _ \ '_ \| __| | |\/| |/ _ \ __| '_ \ / _ \ / _` |
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\ / (_| \__ \ |_ | |__| | __/\ V / __/ | (_) | |_) | | | | | | __/ | | | |_ | | | | __/ |_| | | | (_) | (_| |
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\/ \__,_|___/\__| |_____/ \___| \_/ \___|_|\___/| .__/|_| |_| |_|\___|_| |_|\__| |_| |_|\___|\__|_| |_|\___/ \__,_|
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/-------------------------------------------------------------------------------------------------------------------------------/
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@version 1.0.x
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@build 4th April, 2019
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@created 30th January, 2017
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@package Questions and Answers
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@subpackage ajax.php
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@author Llewellyn van der Merwe <https://www.vdm.io/>
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@copyright Copyright (C) 2015. All Rights Reserved
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@license GNU/GPL Version 2 or later - http://www.gnu.org/licenses/gpl-2.0.html
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Questions & Answers
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/-----------------------------------------------------------------------------------------------------------------------------*/
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// No direct access to this file
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defined('_JEXEC') or die('Restricted access');
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/**
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* Questionsanswers Ajax Model
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*/
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class QuestionsanswersModelAjax extends JModelList
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{
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protected $app_params;
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public function __construct()
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{
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parent::__construct();
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// get params
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$this->app_params = JComponentHelper::getParams('com_questionsanswers');
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}
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// Used in question_and_answer
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protected $viewid = array();
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protected function getViewID($call = 'table')
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{
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if (!isset($this->viewid[$call]))
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{
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// get the vdm key
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$jinput = JFactory::getApplication()->input;
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$vdm = $jinput->get('vdm', null, 'WORD');
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if ($vdm)
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{
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// set view and id
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if ($view = QuestionsanswersHelper::get($vdm))
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{
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$current = (array) explode('__', $view);
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if (QuestionsanswersHelper::checkString($current[0]) && isset($current[1]) && is_numeric($current[1]))
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{
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// get the view name & id
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$this->viewid[$call] = array(
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'a_id' => (int) $current[1],
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'a_view' => $current[0]
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);
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}
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}
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// set return if found
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if ($return = QuestionsanswersHelper::get($vdm . '__return'))
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{
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if (QuestionsanswersHelper::checkString($return))
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{
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$this->viewid[$call]['a_return'] = $return;
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}
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}
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}
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}
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if (isset($this->viewid[$call]))
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{
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return $this->viewid[$call];
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}
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return false;
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}
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// allowed views
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protected $allowedViews = array('question_and_answer');
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// allowed targets
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protected $targets = array('main', 'answer');
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// allowed types
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protected $types = array('image' => 'image', 'images' => 'image', 'document' => 'document', 'documents' => 'document');
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// set some buckets
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protected $target;
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protected $targetType;
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protected $formatType;
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// set some defaults
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protected $formats =
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array(
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'image_formats' => array(
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1 => 'jpg',
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2 => 'jpeg',
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3 => 'gif',
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4 => 'png'),
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'document_formats' => array(
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1 => 'doc',
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2 => 'docx',
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3 => 'odt',
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4 => 'pdf',
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5 => 'csv',
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6 => 'xls',
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7 => 'xlsx',
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8 => 'ods',
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9 => 'ppt',
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10 => 'pptx',
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11 => 'pps',
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12 => 'ppsx',
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13 => 'odp',
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14 => 'zip'),
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'media_formats' => array(
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1 => 'mp3',
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2 => 'm4a',
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3 => 'ogg',
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4 => 'wav',
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5 => 'mp4',
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6 => 'm4v',
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7 => 'mov',
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8 => 'wmv',
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9 => 'avi',
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10 => 'mpg',
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11 => 'ogv',
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12 => '3gp',
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13 => '3g2'));
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// file details
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protected $fileName;
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protected $folderPath;
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protected $fullPath;
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protected $fileFormat;
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// return error if upload fails
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protected $errorMessage;
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// set uploading values
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protected $use_streams = false;
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protected $allow_unsafe = false;
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protected $safeFileOptions = array();
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public function uploadfile($target, $type)
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{
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// get the view values
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$view = $this->getViewID();
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if (in_array($target, $this->targets) && isset($this->types[$type]) && isset($view['a_view']) && in_array($view['a_view'], $this->allowedViews))
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{
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$this->target = (string) $target;
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$this->targetType = (string) $type;
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$this->formatType = (string) $this->types[$type];
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if ($package = $this->_getPackageFromUpload())
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{
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// now we move the file into place
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return $this->uploadNow($package, $view);
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}
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return array('error' => $this->errorMessage);
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}
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return array('error' => JText::_('COM_QUESTIONSANSWERS_THERE_HAS_BEEN_AN_ERROR'));
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}
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protected function uploadNow($package, $view)
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{
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// set the package name to file name if found
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$name = $this->formatType;
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if (isset($package['packagename']))
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{
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$name = QuestionsanswersHelper::safeString(str_replace('.'.$this->fileFormat, '', $package['packagename']), 'filename', '_', false);
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}
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$this->fileName = $this->target.'_'.$this->targetType.'_'.$this->fileFormat.'_'.QuestionsanswersHelper::randomkey(20).'VDM'.$name;
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// set the folder path
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if ($this->formatType === 'document' || $this->formatType === 'media')
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{
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// get the folder path
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$this->folderPath = QuestionsanswersHelper::getFolderPath('path', 'hiddenfilepath');
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}
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else
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{
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// get the file path
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$this->folderPath = QuestionsanswersHelper::getFolderPath();
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}
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// set full path to the file
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$this->fullPath = $this->folderPath . $this->fileName . '.' . $this->fileFormat;
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// move to target folder
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if (JFile::move($package['dir'], $this->fullPath))
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{
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// do crop/resize if it is an image and cropping is set
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if ($this->formatType === 'image')
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{
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QuestionsanswersHelper::resizeImage($this->fileName, $this->fileFormat, $this->target, $this->folderPath, $this->fullPath);
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}
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// Get the basic encryption.
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$basickey = QuestionsanswersHelper::getCryptKey('basic');
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$basic = null;
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// set link options
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$linkOptions = QuestionsanswersHelper::getLinkOptions();
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// set link options
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if ($basickey)
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{
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// Get the encryption object.
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$basic = new FOFEncryptAes($basickey, 128);
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}
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// when it is documents we need to give file name in base64
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if ($this->formatType === 'document' || $this->formatType === 'media')
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{
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// store the name
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$keyName = $this->fileName;
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if (QuestionsanswersHelper::checkObject($basic))
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{
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// Get the encryption object.
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$localFile = QuestionsanswersHelper::base64_urlencode($basic->encryptString($keyName));
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}
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else
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{
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// can not get the encryption object so only base64 encode
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$localFile = QuestionsanswersHelper::base64_urlencode($keyName, true);
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}
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}
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// check if we must update the current item
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if (isset($view['a_id']) && $view['a_id'] > 0 && isset($view['a_view']))
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{
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$object = new stdClass();
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$object->id = (int) $view['a_id'];
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if ($this->targetType === 'image' || $this->targetType === 'document')
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{
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if ($linkOptions['lock'] && QuestionsanswersHelper::checkObject($basic))
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{
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// Get the encryption object.
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$object->{$this->target.'_'.$this->targetType} = $basic->encryptString($this->fileName);
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}
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else
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{
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// can not get the encryption object.
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$object->{$this->target.'_'.$this->targetType} = $this->fileName;
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}
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}
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elseif ($this->targetType === 'images' || $this->targetType === 'documents' || $this->targetType === 'media')
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{
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$this->fileName = $this->setFileNameArray('add', $basic, $view);
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if ($linkOptions['lock'] && QuestionsanswersHelper::checkObject($basic))
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{
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// Get the encryption object.
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$object->{$this->target.'_'.$this->targetType} = $basic->encryptString($this->fileName);
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}
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else
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{
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// can not get the encryption object.
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$object->{$this->target.'_'.$this->targetType} = $this->fileName;
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}
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}
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JFactory::getDbo()->updateObject('#__questionsanswers_'.$view['a_view'], $object, 'id');
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}
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elseif ($this->targetType === 'images' || $this->targetType === 'documents' || $this->targetType === 'media')
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{
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$this->fileName = array($this->fileName);
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$this->fileName = '["'.implode('", "', $this->fileName).'"]';
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}
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// set the results
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$result = array('success' => $this->fileName, 'fileformat' => $this->fileFormat);
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// add some more values if document format type
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if ($this->formatType === 'document' || $this->formatType === 'media')
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{
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$tokenLink = '';
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if ($linkOptions['lock'] == 0)
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{
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$localFile = QuestionsanswersHelper::base64_urlencode($keyName, true);
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}
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if ($linkOptions['session'])
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{
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$tokenLink = '&token=' . JSession::getFormToken();
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}
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// if document
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if ($this->formatType === 'document')
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{
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$result['link'] = 'index.php?option=com_questionsanswers&task=download.document&file=' . $localFile . $tokenLink;
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}
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// if media
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elseif ($this->formatType === 'media')
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{
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$result['link'] = 'index.php?option=com_questionsanswers&task=download.media&file=' . $localFile . $tokenLink;
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}
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$result['key'] = $keyName;
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}
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return $result;
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}
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$this->remove($package['packagename']);
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return array('error' => JText::_('COM_QUESTIONSANSWERS_THERE_HAS_BEEN_AN_ERROR'));
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}
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public function removeFile($oldFile, $target, $clearDB, $type)
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{
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// get view values
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$view = $this->getViewID();
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if (in_array($target, $this->targets) && isset($this->types[$type]) && isset($view['a_view']) && in_array($view['a_view'], $this->allowedViews))
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{
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$this->target = (string) $target;
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$this->targetType = (string) $type;
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$this->formatType = (string) $this->types[$type];
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$this->fileName = (string) $oldFile;
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if (isset($view['a_id']) && $view['a_id'] > 0 && isset($view['a_view']))
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{
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// get user to see if he has permission to upload
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$user = JFactory::getUser();
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if (!$user->authorise($view['a_view'].'.edit.'.$this->target.'_'.$this->targetType, 'com_questionsanswers'))
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{
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return array('error' => JText::_('COM_QUESTIONSANSWERS_YOU_DO_NOT_HAVE_PERMISSION_TO_REMOVE_THIS_FILE'));
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}
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}
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if ($this->formatType === 'document' || $this->formatType === 'media')
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{
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// get the file path
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$this->folderPath = QuestionsanswersHelper::getFolderPath('path', 'hiddenfilepath');
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}
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else
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{
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// get the file path
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$this->folderPath = QuestionsanswersHelper::getFolderPath();
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}
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// remove from the db if there is an id
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if ($clearDB == 1 && isset($view['a_id']) && $view['a_id'] > 0 && isset($view['a_view']) && in_array($view['a_view'], $this->allowedViews))
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{
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$object = new stdClass();
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$object->id = (int) $view['a_id'];
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if ($this->targetType === 'image' || $this->targetType === 'document')
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{
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$object->{$this->target.'_'.$this->targetType} = '';
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JFactory::getDbo()->updateObject('#__questionsanswers_'.$view['a_view'], $object, 'id');
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}
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elseif ($this->targetType === 'images' || $this->targetType === 'documents' || $this->targetType === 'media')
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{
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// Get the basic encription.
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$basickey = QuestionsanswersHelper::getCryptKey('basic');
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$basic = null;
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// set link options
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$linkOptions = QuestionsanswersHelper::getLinkOptions();
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if ($linkOptions['lock'] && $basickey)
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{
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// Get the encryption object.
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$basic = new FOFEncryptAes($basickey, 128);
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}
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$fileNameArray = $this->setFileNameArray('remove', $basic, $view);
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if ($linkOptions['lock'] && QuestionsanswersHelper::checkObject($basic))
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{
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// Get the encryption object.
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$object->{$this->target.'_'.$this->targetType} = $basic->encryptString($fileNameArray);
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}
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else
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{
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// can not get the encryption object.
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$object->{$this->target.'_'.$this->targetType} = $fileNameArray;
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}
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JFactory::getDbo()->updateObject('#__questionsanswers_'.$view['a_view'], $object, 'id');
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}
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}
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// load the file class
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jimport('joomla.filesystem.file');
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// remove file with this filename
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$fileFormats = $this->formats[$this->formatType .'_formats'];
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foreach ($fileFormats as $fileFormat)
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{
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if (JFile::exists($this->folderPath . $this->fileName . '.' . $fileFormat))
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{
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// remove the file
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return JFile::delete($this->folderPath . $this->fileName . '.' . $fileFormat);
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}
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}
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}
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return array('error' => JText::_('COM_QUESTIONSANSWERS_THERE_HAS_BEEN_AN_ERROR'));
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}
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protected function setFileNameArray($action, $basic, $view)
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{
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$curentFiles = QuestionsanswersHelper::getVar($view['a_view'], $view['a_id'], 'id', $this->target.'_'.$this->targetType);
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// unlock if needed
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if ($basic && $curentFiles === base64_encode(base64_decode($curentFiles, true)))
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{
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// basic decrypt data banner_image.
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$curentFiles = rtrim($basic->decryptString($curentFiles), "\0");
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}
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// convert to array if needed
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if (QuestionsanswersHelper::checkJson($curentFiles))
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{
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$curentFiles = json_decode($curentFiles, true);
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}
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// remove or add the file name
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if (QuestionsanswersHelper::checkArray($curentFiles))
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{
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if ('add' === $action)
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{
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$curentFiles[] = $this->fileName;
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}
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else
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{
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if(($key = array_search($this->fileName, $curentFiles)) !== false)
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{
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unset($curentFiles[$key]);
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}
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}
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}
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elseif ('add' === $action)
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{
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$curentFiles = array($this->fileName);
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}
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else
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{
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$curentFiles = '';
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}
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// convert to json
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if (QuestionsanswersHelper::checkArray($curentFiles))
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{
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return '["'.implode('", "', $curentFiles).'"]';
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}
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return '';
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}
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/**
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* Works out an importation file from a HTTP upload
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*
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* @return file definition or false on failure
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*/
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protected function _getPackageFromUpload()
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{
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// Get the uploaded file information
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$app = JFactory::getApplication();
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$input = $app->input;
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// See JInputFiles::get.
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$userfiles = $input->files->get('files', null, 'array');
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// Make sure that file uploads are enabled in php
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if (!(bool) ini_get('file_uploads'))
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{
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$this->errorMessage = JText::_('COM_QUESTIONSANSWERS_WARNING_IMPORT_FILE_ERROR');
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return false;
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}
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// get the files from array
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$userfile = null;
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if (is_array($userfiles))
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{
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$userfile = array_values($userfiles)[0];
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}
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// If there is no uploaded file, we have a problem...
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if (!is_array($userfile))
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{
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$this->errorMessage = JText::_('COM_QUESTIONSANSWERS_NO_IMPORT_FILE_SELECTED');
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return false;
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}
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// Check if there was a problem uploading the file.
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if ($userfile['error'] || $userfile['size'] < 1)
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{
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$this->errorMessage = JText::_('COM_QUESTIONSANSWERS_WARNING_IMPORT_UPLOAD_ERROR');
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return false;
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}
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// Build the appropriate paths
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$config = JFactory::getConfig();
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$tmp_dest = $config->get('tmp_path') . '/' . $userfile['name'];
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$tmp_src = $userfile['tmp_name'];
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// Move uploaded file
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jimport('joomla.filesystem.file');
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jimport('joomla.filesystem.folder');
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$p_file = JFile::upload($tmp_src, $tmp_dest, $this->use_streams, $this->allow_unsafe, $this->safeFileOptions);
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// Was the package downloaded?
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if (!$p_file)
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{
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$session = JFactory::getSession();
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$session->clear('package');
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$session->clear('dataType');
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$session->clear('hasPackage');
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$this->errorMessage = JText::_('COM_QUESTIONSANSWERS_COULD_NOT_UPLOAD_THE_FILE');
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// was not uploaded
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return false;
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}
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// check that this is a valid file
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$package = $this->check($userfile['name']);
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return $package;
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}
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/**
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* Check a file and verifies it as a allowed file format file
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*
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* @param string $archivename The uploaded package filename or import directory
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*
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* @return array of elements
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*
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*/
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protected function check($archivename)
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{
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// Clean the name
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$archivename = JPath::clean($archivename);
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// get file format
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$this->fileFormat = strtolower(pathinfo($archivename, PATHINFO_EXTENSION));
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// get fileFormat key
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$allowedFormats = array();
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if (in_array($this->fileFormat, $this->formats[$this->formatType .'_formats']))
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{
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// get allowed formats
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$allowedFormats = (array) $this->app_params->get($this->formatType.'_formats', null);
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}
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// check the extension
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if (!in_array($this->fileFormat, $allowedFormats))
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{
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// Cleanup the import files
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$this->remove($archivename);
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$this->errorMessage = JText::_('COM_QUESTIONSANSWERS_DOES_NOT_HAVE_A_VALID_FILE_TYPE');
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return false;
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}
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// check permission if user
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$view = $this->getViewID();
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if (isset($view['a_id']) && $view['a_id'] > 0 && isset($view['a_view']) && in_array($view['a_view'], $this->allowedViews))
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{
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// get user to see if he has permission to upload
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$user = JFactory::getUser();
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if (!$user->authorise($view['a_view'].'.edit.'.$this->target.'_'.$this->targetType, 'com_questionsanswers'))
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{
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// Cleanup the import files
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$this->remove($archivename);
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$this->errorMessage = JText::_('COM_QUESTIONSANSWERS_YOU_DO_NOT_HAVE_PERMISSION_TO_UPLOAD_AN'.$this->targetType);
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return false;
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}
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}
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$config = JFactory::getConfig();
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// set Package Name
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$check['packagename'] = $archivename;
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// set directory
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$check['dir'] = $config->get('tmp_path'). '/' .$archivename;
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return $check;
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}
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|
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/**
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* Clean up temporary uploaded file
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*
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* @param string $package Name of the uploaded file
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*
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* @return boolean True on success
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*
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*/
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protected function remove($package)
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{
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jimport('joomla.filesystem.file');
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$config = JFactory::getConfig();
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$package = $config->get('tmp_path'). '/' .$package;
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|
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// Is the package file a valid file?
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if (is_file($package))
|
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{
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JFile::delete($package);
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}
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elseif (is_file(JPath::clean($package)))
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{
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// It might also be just a base filename
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JFile::delete(JPath::clean($package));
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}
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}
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}
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