class.ilContObjectExport.php

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

require_once("./Modules/LearningModule/classes/class.ilObjContentObject.php");

class ilContObjectExport
{
        var $err;                       // error object
        var $db;                        // database object
        var $ilias;                     // ilias object
        var $cont_obj;          // content object (learning module | digilib book)
        var $inst_id;           // installation id
        var $mode;

        function ilContObjectExport(&$a_cont_obj, $a_mode = "xml", $a_lang = "")
        {
                global $ilErr, $ilDB, $ilias;

                $this->cont_obj =& $a_cont_obj;

                $this->err =& $ilErr;
                $this->ilias =& $ilias;
                $this->db =& $ilDB;
                $this->mode = $a_mode;
                $this->lang = $a_lang;

                $settings = $this->ilias->getAllSettings();
                //$this->inst_id = $settings["inst_id"];
                $this->inst_id = IL_INST_ID;

                $date = time();
                switch($this->mode)
                {
                        case "html":
                                if ($this->lang == "")
                                {
                                        $this->export_dir = $this->cont_obj->getExportDirectory("html");
                                }
                                else
                                {
                                        $this->export_dir = $this->cont_obj->getExportDirectory("html_".$this->lang);
                                }
                                $this->subdir = $this->cont_obj->getType()."_".$this->cont_obj->getId();
                                $this->filename = $this->subdir.".zip";
                                break;

                        case "scorm":
                                $this->export_dir = $this->cont_obj->getExportDirectory("scorm");
                                $this->subdir = $this->cont_obj->getType()."_".$this->cont_obj->getId();
                                $this->filename = $this->subdir.".zip";
                                break;
                        
                        case "pdf":
                                $this->export_dir = $this->cont_obj->getOfflineDirectory();
                                $this->subdir = $date."__".$this->inst_id."__".
                                        $this->cont_obj->getType()."_".$this->cont_obj->getId();
                                $this->filename = $this->subdir.".fo";
                                break;

                        default:
                                $this->export_dir = $this->cont_obj->getExportDirectory();
                                $this->subdir = $date."__".$this->inst_id."__".
                                        $this->cont_obj->getType()."_".$this->cont_obj->getId();
                                $this->filename = $this->subdir.".xml";
                                break;
                }
        }

        function getInstId()
        {
                return $this->inst_id;
        }

        function buildExportFile()
        {
                switch ($this->mode)
                {
                        case "html":
                                $this->buildExportFileHTML();
                                break;
                                
                        case "scorm":
                                $this->buildExportFileSCORM();
                                break;

                        case "pdf":
                                $this->buildExportFilePDF();
                                break;

                        default:
                                return $this->buildExportFileXML();
                                break;
                }
        }

        function buildExportFileXML()
        {
                global $ilBench;

                $ilBench->start("ContentObjectExport", "buildExportFile");

                require_once("./Services/Xml/classes/class.ilXmlWriter.php");

                $this->xml = new ilXmlWriter;

                // set dtd definition
                $this->xml->xmlSetDtdDef("<!DOCTYPE ContentObject SYSTEM \"http://www.ilias.de/download/dtd/ilias_co_3_7.dtd\">");

                // set generated comment
                $this->xml->xmlSetGenCmt("Export of ILIAS Content Module ".
                        $this->cont_obj->getId()." of installation ".$this->inst.".");

                // set xml header
                $this->xml->xmlHeader();

                // create directories
                $this->cont_obj->createExportDirectory();
                ilUtil::makeDir($this->export_dir."/".$this->subdir);
                ilUtil::makeDir($this->export_dir."/".$this->subdir."/objects");

                // get Log File
                $expDir = $this->cont_obj->getExportDirectory();
                $expLog = new ilLog($expDir, "export.log");
                $expLog->delete();
                $expLog->setLogFormat("");
                $expLog->write(date("[y-m-d H:i:s] ")."Start Export");

                // get xml content
//echo "ContObjExport:".$this->inst_id.":<br>";
                $ilBench->start("ContentObjectExport", "buildExportFile_getXML");
                $this->cont_obj->exportXML($this->xml, $this->inst_id,
                        $this->export_dir."/".$this->subdir, $expLog);
                $ilBench->stop("ContentObjectExport", "buildExportFile_getXML");

                // export style
                if ($this->cont_obj->getStyleSheetId() > 0)
                {
                        include_once("./Services/Style/classes/class.ilObjStyleSheet.php");
                        $style_obj = new ilObjStyleSheet($this->cont_obj->getStyleSheetId(), false);
                        //$style_obj->exportXML($this->export_dir."/".$this->subdir);
                        $style_obj->setExportSubDir("style");
                        $style_file = $style_obj->export();
                        if (is_file($style_file))
                        {
                                copy($style_file, $this->export_dir."/".$this->subdir."/style.zip");
                        }
                }

                // dump xml document to screen (only for debugging reasons)
                /*
                echo "<PRE>";
                echo htmlentities($this->xml->xmlDumpMem($format));
                echo "</PRE>";
                */

                // dump xml document to file
                $this->xml->xmlDumpFile($this->export_dir."/".$this->subdir."/".$this->filename
                        , false);
                
                // help export (workaround to use ref id here)
                if (ilObjContentObject::isOnlineHelpModule((int) $_GET["ref_id"]))
                {
                        include_once("./Services/Export/classes/class.ilExport.php");
                        $exp = new ilExport();
                        $exp->exportEntity("help", $this->cont_obj->getId(), "4.3.0", "Services/Help",
                                "OnlineHelp", $this->export_dir."/".$this->subdir);
                }

                // zip the file
                ilUtil::zip($this->export_dir."/".$this->subdir,
                        $this->export_dir."/".$this->subdir.".zip");

                // destroy writer object
                $this->xml->_XmlWriter;

                $expLog->write(date("[y-m-d H:i:s] ")."Finished Export");
                $ilBench->stop("ContentObjectExport", "buildExportFile");

                return $this->export_dir."/".$this->subdir.".zip";
        }

        function buildExportFilePDF()
        {
                die("deprecated.");             
        }

        function buildExportFileHTML()
        {
                global $ilBench;

                // create directories
                if ($this->lang == "")
                {
                        $this->cont_obj->createExportDirectory("html");
                }
                else
                {
                        $this->cont_obj->createExportDirectory("html_".$this->lang);
                }


                // get html content
                $this->cont_obj->exportHTML($this->export_dir."/".$this->subdir, $expLog, true, "html", $this->lang);
        }

        function buildExportFileSCORM()
        {
                global $ilBench;

                $ilBench->start("ContentObjectExport", "buildSCORMPackage");

                // create directories
                $this->cont_obj->createExportDirectory("scorm");

                // get html content
                $ilBench->start("ContentObjectExport", "buildSCORMPackage_getSCORM");
                $this->cont_obj->exportSCORM($this->export_dir."/".$this->subdir, $expLog);
                $ilBench->stop("ContentObjectExport", "buildSCORMPackage_getSCORM");

                //$expLog->write(date("[y-m-d H:i:s] ")."Finished Export");
                $ilBench->stop("ContentObjectExport", "buildSCORMPackage");
        }

}

?>