class.ilPropertyFormGUI.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once("./Services/Form/classes/class.ilFormGUI.php");

// please do not add any more includes here if things are not really
// highly re-used
include_once("./Services/Form/classes/class.ilFormPropertyGUI.php");
include_once("./Services/Form/classes/class.ilSubEnabledFormPropertyGUI.php");
include_once("./Services/Form/classes/class.ilCheckboxInputGUI.php");
include_once("./Services/Form/classes/class.ilCustomInputGUI.php");
include_once("./Services/Form/classes/class.ilDateTimeInputGUI.php");
include_once("./Services/Form/classes/class.ilFileInputGUI.php");
include_once("./Services/Form/classes/class.ilImageFileInputGUI.php");
include_once('./Services/Form/classes/class.ilFlashFileInputGUI.php');
include_once("./Services/Form/classes/class.ilLocationInputGUI.php");
include_once("./Services/Form/classes/class.ilRadioGroupInputGUI.php");
include_once("./Services/Form/classes/class.ilCheckboxGroupInputGUI.php");
include_once("./Services/Form/classes/class.ilFormSectionHeaderGUI.php");
include_once("./Services/Form/classes/class.ilSelectInputGUI.php");
include_once("./Services/Form/classes/class.ilTextAreaInputGUI.php");
include_once("./Services/Form/classes/class.ilTextInputGUI.php");
include_once("./Services/Form/classes/class.ilDurationInputGUI.php");
include_once("./Services/Form/classes/class.ilFeedUrlInputGUI.php");
include_once("./Services/Form/classes/class.ilNonEditableValueGUI.php");
include_once("./Services/Form/classes/class.ilRegExpInputGUI.php");
include_once('./Services/Form/classes/class.ilColorPickerInputGUI.php');
include_once('./Services/Form/classes/class.ilPasswordInputGUI.php');
include_once('./Services/Form/classes/class.ilUserLoginInputGUI.php');
include_once('./Services/Form/classes/class.ilEMailInputGUI.php');
include_once('./Services/Form/classes/class.ilHiddenInputGUI.php');
include_once('./Services/Form/classes/class.ilNumberInputGUI.php');
include_once('./Services/Form/classes/class.ilCSSRectInputGUI.php');
include_once('./Services/Form/classes/class.ilTextWizardInputGUI.php');
include_once './Services/Form/classes/class.ilFileWizardInputGUI.php';
include_once './Services/Form/classes/class.ilFormulaInputGUI.php';
include_once './Services/Form/classes/class.ilBirthdayInputGUI.php';

class ilPropertyFormGUI extends ilFormGUI
{
        private $buttons = array();
        private $items = array();
        protected $mode = "std";
        protected $check_input_called = false;
        protected $disable_standard_message = false;
        protected $top_anchor = "il_form_top";
        protected $titleicon = false;
        protected $description = "";
        protected $tbl_width = false;
        protected $show_top_buttons = true;
        protected $reloaded_files;
        protected $hide_labels = false;
        
        function ilPropertyFormGUI()
        {
                global $lng;
                
                $lng->loadLanguageModule("form");
                parent::ilFormGUI();

                // avoid double submission
                $this->setPreventDoubleSubmission(true);

                // do it as early as possible
                $this->rebuildUploadedFiles();
        }

        function &executeCommand()
        {
                global $ilCtrl;
                
                $next_class = $ilCtrl->getNextClass($this);
                $cmd = $ilCtrl->getCmd();
                        
                switch($next_class)
                {
                        case 'ilformpropertydispatchgui':
                                $ilCtrl->saveParameter($this, 'postvar');               
                                include_once './Services/Form/classes/class.ilFormPropertyDispatchGUI.php';
                                $form_prop_dispatch = new ilFormPropertyDispatchGUI();
                                $item = $this->getItemByPostVar($_REQUEST["postvar"]);
                                $form_prop_dispatch->setItem($item);
                                return $ilCtrl->forwardCommand($form_prop_dispatch);
                                break;

                }
                return false;
        }

        final public function setTableWidth($a_width)
        {
                $this->tbl_width = $a_width;
        }
        
        final public function getTableWidth()
        {
                return $this->tbl_width;
        }

        function setMode($a_mode)
        {
                $this->mode = $a_mode;
        }

        function getMode()
        {
                return $this->mode;
        }

        function setTitle($a_title)
        {
                $this->title = $a_title;
        }

        function getTitle()
        {
                return $this->title;
        }

        function setTitleIcon($a_titleicon)
        {
                $this->titleicon = $a_titleicon;
        }

        function getTitleIcon()
        {
                return $this->titleicon;
        }

        function setDescription($a_val)
        {
                $this->description = $a_val;
        }
        
        function getDescription()
        {
                return $this->description;
        }
        
        function setTopAnchor($a_val)
        {
                $this->top_anchor = $a_val;
        }
        
        function getTopAnchor()
        {
                return $this->top_anchor;
        }

        public function setShowTopButtons($a_val)
        {
                $this->show_top_buttons = $a_val;
        }

        public function getShowTopButtons()
        {
                return $this->show_top_buttons;
        }
        
        function addItem($a_item)
        {
                $a_item->setParentForm($this);
                return $this->items[] = $a_item;
        }

        function removeItemByPostVar($a_post_var)
        {
                foreach ($this->items as $key => $item)
                {
                        if (method_exists($item, "getPostVar") && $item->getPostVar() == $a_post_var)
                        {
                                unset($this->items[$key]);
                        }
                }
        }

        function getItemByPostVar($a_post_var)
        {
                foreach ($this->items as $key => $item)
                {
                        if ($item->getType() != "section_header")
                        {
                                //if ($item->getPostVar() == $a_post_var)
                                $ret = $item->getItemByPostVar($a_post_var);
                                if (is_object($ret))
                                {
                                        return $ret;
                                }
                        }
                }
                
                return false;
        }

        function setItems($a_items)
        {
                $this->items = $a_items;
        }

        function getItems()
        {
                return $this->items;
        }
        
        public function getInputItemsRecursive()
        {
                $inputItems = array();
                
                foreach($this->items as $item)
                {
                        if( $item->getType() == 'section_header' )
                        {
                                continue;
                        }
                        
                        $inputItems[] = $item;
                        
                        if( $item instanceof ilSubEnabledFormPropertyGUI )
                        {                               
                                $inputItems = array_merge( $inputItems, $item->getSubInputItemsRecursive() );
                        }
                }
                
                return $inputItems;
        }

        function setDisableStandardMessage($a_val)
        {
                $this->disable_standard_message = $a_val;
        }
        
        function getDisableStandardMessage()
        {
                return $this->disable_standard_message;
        }
        
        function getHideLabels()
        {
                return $this->hide_labels;      
        }
        
        function setHideLabels($a_value = true)
        {
                $this->hide_labels = $a_value;
        }
        
        function setValuesByArray($a_values, $a_restrict_to_value_keys = false)
        {
                foreach($this->items as $item)
                {                       
                        if(!($a_restrict_to_value_keys) || 
                                in_array($item->getPostVar(), array_keys($a_values)))
                        {                       
                                $item->setValueByArray($a_values);
                        }                       
                }
        }

        function setValuesByPost()
        {
            foreach($this->items as $item)
                {
                        $item->setValueByArray($_POST);
                }
        }
        
        function checkInput()
        {
                global $lng;
                
                if ($this->check_input_called)
                {
                        die ("Error: ilPropertyFormGUI->checkInput() called twice.");
                }
                
                $ok = true;
                foreach($this->items as $item)
                {
                        $item_ok = $item->checkInput();
                        if(!$item_ok)
                        {
                                $ok = false;
                        }
                }
                
                // check if POST is missint completely (if post_max_size exceeded)
                if (count($this->items) > 0 && !is_array($_POST))
                {
                        $ok = false;
                }
                
                $this->check_input_called = true;
                
                
                
                // try to keep uploads for another try
                if(!$ok && $_POST["ilfilehash"] && sizeof($_FILES))
                {                       
                        $hash = $_POST["ilfilehash"];

                        foreach($_FILES as $field => $data)
                        {
                                // we support up to 2 nesting levels (see test/assesment)                               
                                if(is_array($data["tmp_name"]))
                                {
                                        foreach($data["tmp_name"] as $idx => $upload)
                                        {
                                                if(is_array($upload))
                                                {
                                                        foreach($upload as $idx2 => $file)
                                                        {
                                                                if($file && is_uploaded_file($file))
                                                                {
                                                                        $file_name = $data["name"][$idx][$idx2];
                                                                        $file_type = $data["type"][$idx][$idx2];
                                                                        $this->keepFileUpload($hash, $field, $file, $file_name, $file_type, $idx, $idx2);
                                                                }
                                                        }
                                                }
                                                else if($upload && is_uploaded_file($upload))
                                                {
                                                        $file_name = $data["name"][$idx];
                                                        $file_type = $data["type"][$idx];
                                                        $this->keepFileUpload($hash, $field, $upload, $file_name, $file_type, $idx);
                                                }
                                        }
                                }                               
                                else
                                {
                                        $this->keepFileUpload($hash, $field, $data["tmp_name"], $data["name"], $data["type"]);
                                }
                        }
                }
                
                
                if (!$ok && !$this->getDisableStandardMessage())
                {
                        ilUtil::sendFailure($lng->txt("form_input_not_valid"));
                }
                return $ok;
        }
        
        public function getInput($a_post_var, $ensureValidation = true)
        {
                // this check ensures, that checkInput has been called (incl. stripSlashes())
                if (!$this->check_input_called && $ensureValidation)
                {
                        die ("Error: ilPropertyFormGUI->getInput() called without calling checkInput() first.");
                }
                
                return $_POST[$a_post_var];
        }
        
        function addCustomProperty($a_title, $a_html, $a_info = "",
                $a_alert = "", $a_required = false)
        {
                $this->properties[] = array ("type" => "custom",
                        "title" => $a_title,
                        "html" => $a_html,
                        "info" => $a_info);
        }

        function addCommandButton($a_cmd, $a_text)
        {
                $this->buttons[] = array("cmd" => $a_cmd, "text" => $a_text);
        }

        function clearCommandButtons()
        {
                $this->buttons = array();
        }

        function getContent()
        {
                global $lng, $tpl, $ilUser, $ilSetting;
        
                include_once("./Services/YUI/classes/class.ilYuiUtil.php");
                ilYuiUtil::initEvent();
                ilYuiUtil::initDom();
                ilYuiUtil::initAnimation();

                $tpl->addJavaScript("./Services/JavaScript/js/Basic.js");
                $tpl->addJavaScript("Services/Form/js/Form.js");

                $this->tpl = new ilTemplate("tpl.property_form.html", true, true, "Services/Form");

                // check if form has not title and first item is a section header
                // -> use section header for title and remove section header
                // -> command buttons are presented on top
                $fi = $this->items[0];
                if ($this->getMode() == "std" &&
                        $this->getTitle() == "" &&
                        is_object($fi) && $fi->getType() == "section_header"
                        )
                {
                        $this->setTitle($fi->getTitle());
                        unset($this->items[0]);
                }
                
                
                // title icon
                if ($this->getTitleIcon() != "" && @is_file($this->getTitleIcon()))
                {
                        $this->tpl->setCurrentBlock("title_icon");
                        $this->tpl->setVariable("IMG_ICON", $this->getTitleIcon());
                        $this->tpl->parseCurrentBlock();
                }

                // title
                if ($this->getTitle() != "")
                {
                        // commands on top
                        if (count($this->buttons) > 0 && $this->getShowTopButtons() && count($this->items) > 2)
                        {
                                // command buttons
                                foreach($this->buttons as $button)
                                {
                                        $this->tpl->setCurrentBlock("cmd2");
                                        $this->tpl->setVariable("CMD", $button["cmd"]);
                                        $this->tpl->setVariable("CMD_TXT", $button["text"]);
                                        $this->tpl->parseCurrentBlock();
                                }
                                $this->tpl->setCurrentBlock("commands2");
                                $this->tpl->parseCurrentBlock();
                        }

                        if (is_object($ilSetting))
                        {
                                if ($ilSetting->get('char_selector_availability') > 0)
                                {
                                        require_once 'Services/UIComponent/CharSelector/classes/class.ilCharSelectorGUI.php';
                                        if (ilCharSelectorGUI::_isAllowed())
                                        {
                                                $char_selector = ilCharSelectorGUI::_getCurrentGUI();
                                                if ($char_selector->getConfig()->getAvailability() == ilCharSelectorConfig::ENABLED)
                                                {
                                                        $char_selector->addToPage();
                                                        $this->tpl->TouchBlock('char_selector');
                                                }
                                        }
                                }
                        }
                        
                        $this->tpl->setCurrentBlock("header");
                        $this->tpl->setVariable("TXT_TITLE", $this->getTitle());
                        $this->tpl->setVariable("LABEL", $this->getTopAnchor());
                        $this->tpl->setVariable("TXT_DESCRIPTION", $this->getDescription());
                        $this->tpl->parseCurrentBlock();
                }
                $this->tpl->touchBlock("item");
                
                // properties
                $this->required_text = false;
                foreach($this->items as $item)
                {
                        if ($item->getType() != "hidden")
                        {
                                $this->insertItem($item);
                        }
                }                               

                // required
                if ($this->required_text && $this->getMode() == "std")
                {
                        $this->tpl->setCurrentBlock("required_text");
                        $this->tpl->setVariable("TXT_REQUIRED", $lng->txt("required_field"));
                        $this->tpl->parseCurrentBlock();                        
                }
                
                // command buttons
                foreach($this->buttons as $button)
                {
                        $this->tpl->setCurrentBlock("cmd");
                        $this->tpl->setVariable("CMD", $button["cmd"]);
                        $this->tpl->setVariable("CMD_TXT", $button["text"]);
                        $this->tpl->parseCurrentBlock();
                }
                
                // try to keep uploads even if checking input fails
                if($this->getMultipart())
                {
                        $hash = $_POST["ilfilehash"];
                        if(!$hash)
                        {
                                $hash = md5(uniqid(mt_rand(), true));
                        }               
                        $fhash = new ilHiddenInputGUI("ilfilehash");
                        $fhash->setValue($hash);
                        $this->addItem($fhash);
                }
                
                // hidden properties
                $hidden_fields = false;
                foreach($this->items as $item)
                {
                        if ($item->getType() == "hidden")
                        {
                                $item->insert($this->tpl);
                                $hidden_fields = true;
                        }
                }
                
                if ($this->required_text || count($this->buttons) > 0 || $hidden_fields)
                {
                        $this->tpl->setCurrentBlock("commands");
                        $this->tpl->parseCurrentBlock();
                }

                
                if ($this->getMode() == "subform")
                {
                        $this->tpl->touchBlock("sub_table");
                }
                else
                {
                        $this->tpl->touchBlock("std_table");
                        $this->tpl->setVariable('STD_TABLE_WIDTH',$this->getTableWidth());
                }
                
                return $this->tpl->get();
        }

        function insertItem($item, $a_sub_item = false)
        {
                global $tpl, $lng;
                        
                
                $cfg = array();
                
                //if(method_exists($item, "getMulti") && $item->getMulti())
                if ($item instanceof ilMultiValuesItem && $item->getMulti())
                {
                        $tpl->addJavascript("./Services/Form/js/ServiceFormMulti.js");
                        
                        $this->tpl->setCurrentBlock("multi_in");
                        $this->tpl->setVariable("ID", $item->getFieldId());
                        $this->tpl->parseCurrentBlock();

                        $this->tpl->touchBlock("multi_out");

                                                
                        // add hidden item to enable preset multi items
                        // not used yet, should replace hidden field stuff
                        $multi_values = $item->getMultiValues();
                        if(is_array($multi_values) && sizeof($multi_values) > 1)
                        {
                                $multi_value = new ilHiddenInputGUI("ilMultiValues~".$item->getPostVar());
                                $multi_value->setValue(implode("~", $multi_values));
                                $this->addItem($multi_value);                           
                        }
                        $cfg["multi_values"] = $multi_values;
                }               
                
                $item->insert($this->tpl);

                if ($item->getType() == "file" || $item->getType() == "image_file")
                {
                        $this->setMultipart(true);
                }

                if ($item->getType() != "section_header")
                {
                        $cfg["id"] = $item->getFieldId();
                        
                        // info text
                        if ($item->getInfo() != "")
                        {
                                $this->tpl->setCurrentBlock("description");
                                $this->tpl->setVariable("PROPERTY_DESCRIPTION",
                                        $item->getInfo());
                                $this->tpl->parseCurrentBlock();
                        }

                        if ($this->getMode() == "subform")
                        {
                                // required
                                if ($item->getType() != "non_editable_value")
                                {
                                        if ($item->getRequired())
                                        {
                                                $this->tpl->touchBlock("sub_required");
                                                $this->required_text = true;
                                        }
                                }
                                
                                // hidden title (for accessibility, e.g. file upload)
                                if ($item->getHiddenTitle() != "")
                                {
                                        $this->tpl->setCurrentBlock("sub_hid_title");
                                        $this->tpl->setVariable("SPHID_TITLE",
                                                $item->getHiddenTitle());
                                        $this->tpl->parseCurrentBlock();
                                }
                                
                                $this->tpl->setCurrentBlock("sub_prop_start");
                                $this->tpl->setVariable("PROPERTY_TITLE", $item->getTitle());
                                $this->tpl->setVariable("PROPERTY_CLASS", "il_".$item->getType());
                                if ($item->getType() != "non_editable_value")
                                {
                                        $this->tpl->setVariable("LAB_ID", $item->getFieldId());
                                }
                                $this->tpl->parseCurrentBlock();
                        }
                        else
                        {
                                // required
                                if ($item->getType() != "non_editable_value")
                                {
                                        if ($item->getRequired())
                                        {
                                                $this->tpl->touchBlock("required");
                                                $this->required_text = true;
                                        }
                                }
                                
                                // hidden title (for accessibility, e.g. file upload)
                                if ($item->getHiddenTitle() != "")
                                {
                                        $this->tpl->setCurrentBlock("std_hid_title");
                                        $this->tpl->setVariable("PHID_TITLE",
                                                $item->getHiddenTitle());
                                        $this->tpl->parseCurrentBlock();
                                }
                                
                                $this->tpl->setCurrentBlock("std_prop_start");
                                $this->tpl->setVariable("PROPERTY_TITLE", $item->getTitle());
                                if ($item->getType() != "non_editable_value")
                                {
                                        $this->tpl->setVariable("LAB_ID", $item->getFieldId());
                                }
                                if ($this->getHideLabels())
                                {
                                        $this->tpl->setVariable("HIDE_LABELS_STYLE", " ilFormOptionHidden");
                                }
                                $this->tpl->parseCurrentBlock();
                        }
                        
                        // alert
                        if ($item->getType() != "non_editable_value" && $item->getAlert() != "")
                        {
                                $this->tpl->setCurrentBlock("alert");
                                $this->tpl->setVariable("IMG_ALERT",
                                        ilUtil::getImagePath("icon_alert.svg"));
                                $this->tpl->setVariable("ALT_ALERT",
                                        $lng->txt("alert"));
                                $this->tpl->setVariable("TXT_ALERT",
                                        $item->getAlert());
                                $this->tpl->parseCurrentBlock();
                        }
                        
                        // subitems
                        $sf = null;
                        if ($item->getType() != "non_editable_value" or 1)
                        {
                                $sf = $item->getSubForm();
                                if ($item->hideSubForm() && is_object($sf))
                                {
                                        $this->tpl->setCurrentBlock("sub_form_hide");
                                        $this->tpl->setVariable("DSFID", $item->getFieldId());
                                        $this->tpl->parseCurrentBlock();
                                }
                        }
                        

                        $sf_content = "";
                        if (is_object($sf))
                        {
                                $sf_content = $sf->getContent();
                                if ($sf->getMultipart())
                                {
                                        $this->setMultipart(true);
                                }
                                $this->tpl->setCurrentBlock("sub_form");
                                $this->tpl->setVariable("PROP_SUB_FORM", $sf_content);
                                $this->tpl->setVariable("SFID", $item->getFieldId());
                                $this->tpl->parseCurrentBlock();
                        }

                        $this->tpl->setCurrentBlock("prop");
                        /* not used yet
                        include_once("./Services/JSON/classes/class.ilJsonUtil.php");
                        $this->tpl->setVariable("ID", $item->getFieldId());
                        $this->tpl->setVariable("CFG", ilJsonUtil::encode($cfg));*/
                        $this->tpl->parseCurrentBlock();
                }
                
                
                $this->tpl->touchBlock("item");
        }
        
        public function getHTML() 
        {
                $html = parent::getHTML();
                
                // #13531 - get content that has to reside outside of the parent form tag, e.g. panels/layers
                foreach($this->items as $item)
                {
                        // #13536 - ilFormSectionHeaderGUI does NOT extend ilFormPropertyGUI ?!
                        if(method_exists($item, "getContentOutsideFormTag"))
                        {
                                $outside = $item->getContentOutsideFormTag();
                                if($outside)
                                {
                                        $html .= $outside;
                                }
                        }
                }
                
                return $html;
        }
        
        
        // 
        // UPLOAD HANDLING
        //
        
        protected function keepFileUpload($a_hash, $a_field, $a_tmp_name, $a_name, $a_type, $a_index = null, $a_sub_index = null)
        {
                global $ilUser;
                
                $user_id = $ilUser->getId();
                if(!$user_id || $user_id == ANONYMOUS_USER_ID)
                {
                        return;
                }
                
                $a_name = ilUtil::getAsciiFileName($a_name);
                
                $tmp_file_name = implode("~~", array($user_id,
                        $a_hash,
                        $a_field,
                        $a_index,
                        $a_sub_index,
                        str_replace("/", "~~", $a_type),
                        str_replace("~~", "_", $a_name)));
                
                // make sure temp directory exists
                $temp_path = ilUtil::getDataDir() . "/temp";
                if (!is_dir($temp_path))
                {
                        ilUtil::createDirectory($temp_path);
                }
                
                move_uploaded_file($a_tmp_name, $temp_path."/".$tmp_file_name); 
        }
        
        function getFileUpload($a_field, $a_index = null, $a_sub_index = null)
        {
                $res = array();
                if($a_index)
                {
                        if($_FILES[$a_field]["tmp_name"][$a_index][$a_sub_index])
                        {
                                $res = array(
                                        "tmp_name" => $_FILES[$a_field]["tmp_name"][$a_index][$a_sub_index],
                                        "name" => $_FILES[$a_field]["name"][$a_index][$a_sub_index],
                                        "type" => $_FILES[$a_field]["type"][$a_index][$a_sub_index],
                                        "error" => $_FILES[$a_field]["error"][$a_index][$a_sub_index],
                                        "size" => $_FILES[$a_field]["size"][$a_index][$a_sub_index],
                                        "is_upload" => true
                                );
                        }
                        else if($this->reloaded_files[$a_field]["tmp_name"][$a_index][$a_sub_index])
                        {
                                $res = array(
                                        "tmp_name" => $this->reloaded_files["tmp_name"][$a_index][$a_sub_index],
                                        "name" => $this->reloaded_files["name"][$a_index][$a_sub_index],
                                        "type" => $this->reloaded_files["type"][$a_index][$a_sub_index],
                                        "error" => $this->reloaded_files["error"][$a_index][$a_sub_index],
                                        "size" => $this->reloaded_files["size"][$a_index][$a_sub_index],
                                        "is_upload" => false
                                );
                        }
                }
                else if($a_sub_index)
                {
                        if($_FILES[$a_field]["tmp_name"][$a_index])
                        {
                                $res = array(
                                        "tmp_name" => $_FILES[$a_field]["tmp_name"][$a_index],
                                        "name" => $_FILES[$a_field]["name"][$a_index],
                                        "type" => $_FILES[$a_field]["type"][$a_index],
                                        "error" => $_FILES[$a_field]["error"][$a_index],
                                        "size" => $_FILES[$a_field]["size"][$a_index],
                                        "is_upload" => true
                                );
                        }
                        else if($this->reloaded_files[$a_field]["tmp_name"][$a_index])
                        {
                                $res = array(
                                        "tmp_name" => $this->reloaded_files[$a_field]["tmp_name"][$a_index],
                                        "name" => $this->reloaded_files[$a_field]["name"][$a_index],
                                        "type" => $this->reloaded_files[$a_field]["type"][$a_index],
                                        "error" => $this->reloaded_files[$a_field]["error"][$a_index],
                                        "size" => $this->reloaded_files[$a_field]["size"][$a_index],
                                        "is_upload" => false
                                );
                        }
                }
                else
                {
                        if($_FILES[$a_field]["tmp_name"])
                        {
                                $res = array(
                                        "tmp_name" => $_FILES[$a_field]["tmp_name"],
                                        "name" => $_FILES[$a_field]["name"],
                                        "type" => $_FILES[$a_field]["type"],
                                        "error" => $_FILES[$a_field]["error"],
                                        "size" => $_FILES[$a_field]["size"],
                                        "is_upload" => true
                                );
                        }
                        else if($this->reloaded_files[$a_field]["tmp_name"])
                        {
                                $res = array(
                                        "tmp_name" => $this->reloaded_files[$a_field]["tmp_name"],
                                        "name" => $this->reloaded_files[$a_field]["name"],
                                        "type" => $this->reloaded_files[$a_field]["type"],
                                        "error" => $this->reloaded_files[$a_field]["error"],
                                        "size" => $this->reloaded_files[$a_field]["size"],
                                        "is_upload" => false
                                );
                        }
                }
                return $res;
        }
        
        function hasFileUpload($a_field, $a_index = null, $a_sub_index = null)
        {
                $data = $this->getFileUpload($a_field, $a_index, $a_sub_index);
                return (bool)$data["tmp_name"];
        }
        
        function moveFileUpload($a_target_directory, $a_field, $a_target_name = null, $a_index = null, $a_sub_index = null)
        {
                if(!is_dir($a_target_directory))
                {
                        return;
                }
                
                $data = $this->getFileUpload($a_field, $a_index, $a_sub_index);
                if($data["tmp_name"] && file_exists($data["tmp_name"]))
                {
                        if($a_target_name)
                        {
                                $data["name"] = $a_target_name;
                        }
                        
                        $target_file = $a_target_directory."/".$data["name"];
                        $target_file = str_replace("//", "/", $target_file);
                        
                        if($data["is_upload"])
                        {
                                if (!move_uploaded_file($data["tmp_name"], $target_file))
                                {
                                        return;
                                }
                        }
                        else
                        {
                                if (!rename($data["tmp_name"], $target_file))
                                {
                                        return;
                                }
                        }
                        
                        return $target_file;
                }
        }
        
        protected function rebuildUploadedFiles()
        {
                global $ilUser;
        
                if($_POST["ilfilehash"])
                {                                       
                        $user_id = $ilUser->getId();
                        $temp_path = ilUtil::getDataDir() . "/temp";
                        if(is_dir($temp_path) && $user_id && $user_id != ANONYMOUS_USER_ID)
                        {
                                $reload = array();
                                
                                $temp_files = glob($temp_path."/".$ilUser->getId()."~~".$_POST["ilfilehash"]."~~*");
                                if(is_array($temp_files))
                                {
                                        foreach($temp_files as $full_file)
                                        {
                                                $file = explode("~~", basename($full_file));
                                                $field = $file[2];
                                                $idx = $file[3];
                                                $idx2 = $file[4];
                                                $type = $file[5]."/".$file[6];
                                                $name = $file[7];

                                                if($idx2 != "")
                                                {
                                                        if(!$_FILES[$field]["tmp_name"][$idx][$idx2])
                                                        {
                                                                $reload[$field]["tmp_name"][$idx][$idx2] = $full_file;
                                                                $reload[$field]["name"][$idx][$idx2] = $name;
                                                                $reload[$field]["type"][$idx][$idx2] = $type;
                                                                $reload[$field]["error"][$idx][$idx2] = 0;
                                                                $reload[$field]["size"][$idx][$idx2] = filesize($full_file);                                                            
                                                        }
                                                }
                                                else if($idx != "")
                                                {
                                                        if(!$_FILES[$field]["tmp_name"][$idx])
                                                        {
                                                                $reload[$field]["tmp_name"][$idx] = $full_file;
                                                                $reload[$field]["name"][$idx] = $name;
                                                                $reload[$field]["type"][$idx] = $type;
                                                                $reload[$field]["error"][$idx] = 0;
                                                                $reload[$field]["size"][$idx] = filesize($full_file);                                                           
                                                        }       
                                                }
                                                else
                                                {
                                                        if(!$_FILES[$field]["tmp_name"])
                                                        {
                                                                $reload[$field]["tmp_name"] = $full_file;
                                                                $reload[$field]["name"] = $name;
                                                                $reload[$field]["type"] = $type;
                                                                $reload[$field]["error"] = 0;
                                                                $reload[$field]["size"] = filesize($full_file);                                                         
                                                        }
                                                }                                               
                                        }
                                }
                                
                                $this->reloaded_files = $reload;
                        }
                }
        }
}

?>