class.ilExportGUI.php

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<?php

/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilExportGUI
{
    protected $formats = array();
    protected $custom_columns = array();
    protected $custom_multi_commands = array();
    
    private $parent_gui = null;
    
    public function __construct($a_parent_gui, $a_main_obj = null)
    {
        global $lng,$tpl;
        
        $this->parent_gui = $a_parent_gui;
        if ($a_main_obj == null) {
            $this->obj = $a_parent_gui->object;
        } else {
            $this->obj = $a_main_obj;
        }
        $lng->loadLanguageModule("exp");
        $this->tpl = $tpl;
    }

    protected function buildExportTableGUI()
    {
        include_once("./Services/Export/classes/class.ilExportTableGUI.php");
        $table = new ilExportTableGUI($this, "listExportFiles", $this->obj);
        return $table;
    }

    protected function getParentGUI()
    {
        return $this->parent_gui;
    }
    
    public function addFormat($a_key, $a_txt = "", $a_call_obj = null, $a_call_func = "")
    {
        global $lng;
        
        if ($a_txt == "") {
            $a_txt = $lng->txt("exp_" . $a_key);
        }
        $this->formats[] = array("key" => $a_key, "txt" => $a_txt,
            "call_obj" => $a_call_obj, "call_func" => $a_call_func);
    }
    
    public function getFormats()
    {
        return $this->formats;
    }
    
    public function addCustomColumn($a_txt, $a_obj, $a_func)
    {
        $this->custom_columns[] = array("txt" => $a_txt,
                                        "obj" => $a_obj,
                                        "func" => $a_func);
    }
    
    public function addCustomMultiCommand($a_txt, $a_obj, $a_func)
    {
        $this->custom_multi_commands[] = array("txt" => $a_txt,
                                        "obj" => $a_obj,
                                        "func" => $a_func);
    }
    
    public function getCustomMultiCommands()
    {
        return $this->custom_multi_commands;
    }

    public function getCustomColumns()
    {
        return $this->custom_columns;
    }

    public function executeCommand()
    {
        global $ilCtrl, $ilAccess, $ilErr, $lng;
        
        // this should work (at least) for repository objects
        if (method_exists($this->obj, 'getRefId') and $this->obj->getRefId()) {
            if (!$ilAccess->checkAccess('write', '', $this->obj->getRefId())) {
                $ilErr->raiseError($lng->txt('permission_denied'), $ilErr->WARNING);
            }
        }
            
        $cmd = $ilCtrl->getCmd("listExportFiles");
        
        switch ($cmd) {
            case "listExportFiles":
                $this->$cmd();
                break;
                
            default:
                if (substr($cmd, 0, 7) == "create_") {
                    $this->createExportFile();
                } elseif (substr($cmd, 0, 6) == "multi_") {     // custom multi command
                    $this->handleCustomMultiCommand();
                } else {
                    $this->$cmd();
                }
                break;
        }
    }
    
    public function listExportFiles()
    {
        global $tpl, $ilToolbar, $ilCtrl, $lng;

        include_once "Services/UIComponent/Button/classes/class.ilSubmitButton.php";
        $button = ilSubmitButton::getInstance();
        
        // creation buttons
        $ilToolbar->setFormAction($ilCtrl->getFormAction($this));
        if (count($this->getFormats()) > 1) {
            // type selection
            foreach ($this->getFormats() as $f) {
                $options[$f["key"]] = $f["txt"];
            }
            include_once("./Services/Form/classes/class.ilSelectInputGUI.php");
            $si = new ilSelectInputGUI($lng->txt("type"), "format");
            $si->setOptions($options);
            $ilToolbar->addInputItem($si, true);
            
            $button->setCaption("exp_create_file");
            $button->setCommand("createExportFile");
        } else {
            $format = $this->getFormats();
            $format = $format[0];
            
            $button->setCaption($lng->txt("exp_create_file") . " (" . $format["txt"] . ")", false);
            $button->setCommand("create_" . $format["key"]);
        }
        
        $ilToolbar->addButtonInstance($button);

        $table = $this->buildExportTableGUI();
        $table->setSelectAllCheckbox("file");
        foreach ($this->getCustomColumns() as $c) {
            $table->addCustomColumn($c["txt"], $c["obj"], $c["func"]);
        }
        foreach ($this->getCustomMultiCommands() as $c) {
            $table->addCustomMultiCommand($c["txt"], "multi_" . $c["func"]);
        }
        $tpl->setContent($table->getHTML());
    }
    
    public function createExportFile()
    {
        global $ilCtrl, $lng;
        
        if ($ilCtrl->getCmd() == "createExportFile") {
            $format = ilUtil::stripSlashes($_POST["format"]);
        } else {
            $format = substr($ilCtrl->getCmd(), 7);
        }
        foreach ($this->getFormats() as $f) {
            if ($f["key"] == $format) {
                if (is_object($f["call_obj"])) {
                    $f["call_obj"]->{$f["call_func"]}();
                } elseif ($this->getParentGUI() instanceof ilContainerGUI) {
                    return $this->showItemSelection();
                } elseif ($format == "xml") {           // standard procedure
                    include_once("./Services/Export/classes/class.ilExport.php");
                    $exp = new ilExport();
                    $exp->exportObject($this->obj->getType(), $this->obj->getId());
                }
            }
        }
        
        ilUtil::sendSuccess($lng->txt("exp_file_created"), true);
        $ilCtrl->redirect($this, "listExportFiles");
    }
    
    public function confirmDeletion()
    {
        global $ilCtrl, $tpl, $lng;
            
        if (!is_array($_POST["file"]) || count($_POST["file"]) == 0) {
            ilUtil::sendInfo($lng->txt("no_checkbox"), true);
            $ilCtrl->redirect($this, "listExportFiles");
        } else {
            include_once("./Services/Utilities/classes/class.ilConfirmationGUI.php");
            $cgui = new ilConfirmationGUI();
            $cgui->setFormAction($ilCtrl->getFormAction($this));
            $cgui->setHeaderText($lng->txt("exp_really_delete"));
            $cgui->setCancel($lng->txt("cancel"), "listExportFiles");
            $cgui->setConfirm($lng->txt("delete"), "delete");
            
            foreach ($_POST["file"] as $i) {
                if (strpos($i, ':') !== false) {
                    $iarr     = explode(":", $i);
                    $filename = $iarr[1];
                } else {
                    $filename = $i;
                }
                $cgui->addItem("file[]", $i, $filename);
            }
            
            $tpl->setContent($cgui->getHTML());
        }
    }
    
    public function delete()
    {
        global $ilCtrl;
        
        foreach ($_POST["file"] as $file) {
            $file = explode(":", $file);
            
            $file[1] = basename($file[1]);
            
            include_once("./Services/Export/classes/class.ilExport.php");
            $export_dir = ilExport::_getExportDirectory(
                $this->obj->getId(),
                str_replace("..", "", $file[0]),
                $this->obj->getType()
            );

            $exp_file = $export_dir . "/" . str_replace("..", "", $file[1]);
            $exp_dir = $export_dir . "/" . substr($file[1], 0, strlen($file[1]) - 4);
            if (@is_file($exp_file)) {
                unlink($exp_file);
            }
            if (@is_dir($exp_dir)) {
                ilUtil::delDir($exp_dir);
            }
            
            // delete entry in database
            include_once './Services/Export/classes/class.ilExportFileInfo.php';
            $info = new ilExportFileInfo($this->obj->getId(), $file[0], $file[1]);
            $info->delete();
        }
        $ilCtrl->redirect($this, "listExportFiles");
    }
    
    public function download()
    {
        global $ilCtrl, $lng;
                        
        if (!isset($_GET["file"]) ||
            is_array($_GET["file"])) {
            $ilCtrl->redirect($this, "listExportFiles");
        }

        $file = explode(":", trim($_GET["file"]));
        include_once("./Services/Export/classes/class.ilExport.php");
        $export_dir = ilExport::_getExportDirectory(
            $this->obj->getId(),
            str_replace("..", "", $file[0]),
            $this->obj->getType()
        );
        
        $file[1] = basename($file[1]);
        
        ilUtil::deliverFile(
            $export_dir . "/" . $file[1],
            $file[1]
        );
    }
    
    public function handleCustomMultiCommand()
    {
        global $ilCtrl;

        $cmd = substr($ilCtrl->getCmd(), 6);
        foreach ($this->getCustomMultiCommands() as $c) {
            if ($c["func"] == $cmd) {
                $c["obj"]->{$c["func"]}($_POST["file"]);
            }
        }
    }
    
    protected function showItemSelection()
    {
        global $tpl;
        
        $tpl->addJavaScript('./Services/CopyWizard/js/ilContainer.js');
        $tpl->setVariable('BODY_ATTRIBUTES', 'onload="ilDisableChilds(\'cmd\');"');

        include_once './Services/Export/classes/class.ilExportSelectionTableGUI.php';
        $table = new ilExportSelectionTableGUI($this, 'listExportFiles');
        $table->parseContainer($this->getParentGUI()->object->getRefId());
        $this->tpl->setContent($table->getHTML());
    }

    protected function saveItemSelection()
    {
        global $tree,$objDefinition, $ilAccess, $ilCtrl,$lng;

        include_once './Services/Export/classes/class.ilExportOptions.php';
        $eo = ilExportOptions::newInstance(ilExportOptions::allocateExportId());
        $eo->addOption(ilExportOptions::KEY_ROOT, 0, 0, $this->obj->getId());
        
        $items_selected = false;
        foreach ($tree->getSubTree($root = $tree->getNodeData($this->getParentGUI()->object->getRefId())) as $node) {
            if ($node['type'] == 'rolf') {
                continue;
            }
            if ($node['ref_id'] == $this->getParentGUI()->object->getRefId()) {
                $eo->addOption(
                    ilExportOptions::KEY_ITEM_MODE,
                    $node['ref_id'],
                    $node['obj_id'],
                    ilExportOptions::EXPORT_BUILD
                );
                continue;
            }
            // no export available or no access
            if (!$objDefinition->allowExport($node['type']) or !$ilAccess->checkAccess('write', '', $node['ref_id'])) {
                $eo->addOption(
                    ilExportOptions::KEY_ITEM_MODE,
                    $node['ref_id'],
                    $node['obj_id'],
                    ilExportOptions::EXPORT_OMIT
                );
                continue;
            }
            
            $mode = isset($_POST['cp_options'][$node['ref_id']]['type']) ?
                $_POST['cp_options'][$node['ref_id']]['type'] :
                ilExportOptions::EXPORT_OMIT;
            $eo->addOption(
                ilExportOptions::KEY_ITEM_MODE,
                $node['ref_id'],
                $node['obj_id'],
                $mode
            );
            if ($mode != ilExportOptions::EXPORT_OMIT) {
                $items_selected = true;
            }
        }
        
        include_once("./Services/Export/classes/class.ilExport.php");
        if ($items_selected) {
            // TODO: move this to background soap
            $eo->read();
            $exp = new ilExport();
            foreach ($eo->getSubitemsForCreation($this->obj->getRefId()) as $ref_id) {
                $obj_id = ilObject::_lookupObjId($ref_id);
                $type = ilObject::_lookupType($obj_id);
                $exp->exportObject($type, $obj_id);
            }
            // Fixme: there is a naming conflict between the container settings xml and the container subitem xml.
            sleep(1);
            // Export container
            include_once './Services/Export/classes/class.ilExportContainer.php';
            $cexp = new ilExportContainer($eo);
            $cexp->exportObject($this->obj->getType(), $this->obj->getId());
        } else {
            $exp = new ilExport();
            $exp->exportObject($this->obj->getType(), $this->obj->getId());
        }

        // Delete export options
        $eo->delete();

        ilUtil::sendSuccess($lng->txt('export_created'), true);
        $ilCtrl->redirect($this, "listExportFiles");
    }
}