class.ilLMMultiSrt.php

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<?php

/* Copyright (c) 1998-2015 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilLMMultiSrt
{
        protected $lm;

        function __construct(ilObjLearningModule $a_lm)
        {
                $this->lm = $a_lm;
        }

        function getMultiSrtUploadDir()
        {
                return ilUtil::getDataDir()."/lm_data".
                        "/lm_".$this->lm->getId()."/srt_tmp";
        }


        function uploadMultipleSubtitleFile($a_file)
        {
                global $lng, $ilUser;

                include_once("./Modules/LearningModule/exceptions/class.ilLMException.php");
                if (!is_file($a_file["tmp_name"]))
                {
                        throw new ilLMException($lng->txt("cont_srt_zip_file_could_not_be_uploaded"));
                }

                $dir = $this->getMultiSrtUploadDir();
                ilUtil::delDir($dir, true);
                ilUtil::makeDirParents($dir);
                ilUtil::moveUploadedFile($a_file["tmp_name"], "multi_srt.zip", $dir."/"."multi_srt.zip");
                ilUtil::unzip($dir."/multi_srt.zip", true);
        }

        function clearMultiSrtDirectory()
        {
                ilUtil::delDir($this->getMultiSrtUploadDir());
        }

        function getMultiSrtFiles()
        {
                $items = array();

                include_once("./Services/MetaData/classes/class.ilMDLanguageItem.php");
                $lang_codes = ilMDLanguageItem::_getPossibleLanguageCodes();

                $dir = $this->getMultiSrtUploadDir();
                $files = ilUtil::getDir($dir);
                foreach ($files as $k => $i)
                {
                        // check directory
                        if ($i["type"] == "file" && !in_array($k, array(".", "..")))
                        {
                                if (pathinfo($k, PATHINFO_EXTENSION) == "srt")
                                {
                                        $lang = "";
                                        if (substr($k, strlen($k) - 7, 1) == "_")
                                        {
                                                $lang = substr($k, strlen($k) - 6, 2);
                                                if (!in_array($lang, $lang_codes))
                                                {
                                                        $lang = "";
                                                }
                                        }
                                        $items[] = array("filename" => $k, "lang" => $lang);
                                }
                        }
                }

                // add mob information to items
                // all pages
                include_once("./Modules/LearningModule/classes/class.ilLMPageObject.php");
                include_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
                $pages = ilLMPageObject::getPageList($this->lm->getId());
                $mobs = array();
                foreach ($pages as $page)
                {
                        // all media objects
                        $pg_mobs = ilObjMediaObject::_getMobsOfObject("lm:pg", $page["obj_id"], 0, "");
                        foreach ($pg_mobs as $k => $pg_mob)
                        {
                                $mobs[$k] = $pg_mob;
                        }
                }
                include_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
                foreach ($mobs as $mob)
                {
                        $m = new ilObjMediaObject($mob);
                        $mi = $m->getMediaItem("Standard");
                        if ($mi->getLocationType() == "LocalFile" && is_int(strpos($mi->getFormat(), "video")))
                        {
                                // $loc is e.g. "echo-hereweare.mp4", we not look for
                                // "echo-hereweare_<langcode>.srt" files
                                $loc = pathinfo($mi->getLocation(), PATHINFO_FILENAME);
                                foreach ($items as $i => $item)
                                {
                                        if (substr($item["filename"], 0, strlen($loc)) == $loc &&
                                                substr($item["filename"], strlen($loc), 1) == "_" &&
                                                pathinfo($item["filename"], PATHINFO_EXTENSION) == "srt")
                                        {
                                                $l = substr($item["filename"], strlen($loc)+1, 2);
                                                if (in_array($l, $lang_codes))
                                                {
                                                        $items[$i]["lang"] = $l;
                                                        $items[$i]["mob"] = $mob;
                                                        $items[$i]["mob_title"] = $m->getTitle();
                                                }
                                        }
                                }
                        }

                }

                return $items;
        }

        function moveMultiSrtFiles()
        {
                $items = $this->getMultiSrtFiles();
                include_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
                $cnt = 0;
                foreach ($items as $i)
                {
                        if ($i["mob"] > 0 && $i["lang"] != "")
                        {
                                $mob = new ilObjMediaObject($i["mob"]);
                                $mob->uploadSrtFile($this->getMultiSrtUploadDir()."/".$i["filename"], $i["lang"], "rename");
                                $cnt++;
                        }
                }
                return $cnt;
        }
}