/**
* read manifest file
* @access public
*/
function readObject()
{
global $ilias, $lng, $ilDB;
//check for MYSQL 4.1 and json_encode,json_decode
if (!function_exists('json_encode') || !function_exists('json_decode') || $ilDB->getDBType() == 'mysql' && !$ilDB->isMysql4_1OrHigher()) {
$ilias->raiseError($lng->txt('scplayer_phpmysqlcheck'), $ilias->error_obj->WARNING);
}
$needs_convert = false;
// convert imsmanifest.xml file in iso to utf8 if needed
$manifest_file = $this->getDataDirectory() . "/imsmanifest.xml";
// check if manifestfile exists and space left on device...
$check_for_manifest_file = is_file($manifest_file);
// if no manifestfile
if (!$check_for_manifest_file) {
$this->ilias->raiseError($this->lng->txt("Manifestfile {$manifest_file} not found!"), $this->ilias->error_obj->MESSAGE);
return;
}
if ($check_for_manifest_file) {
$manifest_file_array = file($manifest_file);
foreach ($manifest_file_array as $mfa) {
// if (seems_not_utf8($mfa))
if (@iconv('UTF-8', 'UTF-8', $mfa) != $mfa) {
$needs_convert = true;
break;
}
}
// to copy the file we need some extraspace, counted in bytes *2 ... we need 2 copies....
$estimated_manifest_filesize = filesize($manifest_file) * 2;
// i deactivated this, because it seems to fail on some windows systems (see bug #1795)
//$check_disc_free = disk_free_space($this->getDataDirectory()) - $estimated_manifest_filesize;
$check_disc_free = 2;
}
// if $manifest_file needs to be converted to UTF8
if ($needs_convert) {
// if file exists and enough space left on device
if ($check_for_manifest_file && $check_disc_free > 1) {
// create backup from original
if (!copy($manifest_file, $manifest_file . ".old")) {
echo "Failed to copy {$manifest_file}...<br>\n";
}
// read backupfile, convert each line to utf8, write line to new file
// php < 4.3 style
$f_write_handler = fopen($manifest_file . ".new", "w");
$f_read_handler = fopen($manifest_file . ".old", "r");
while (!feof($f_read_handler)) {
$zeile = fgets($f_read_handler);
//echo mb_detect_encoding($zeile);
fputs($f_write_handler, utf8_encode($zeile));
}
fclose($f_read_handler);
fclose($f_write_handler);
// copy new utf8-file to imsmanifest.xml
if (!copy($manifest_file . ".new", $manifest_file)) {
echo "Failed to copy {$manifest_file}...<br>\n";
}
if (!@is_file($manifest_file)) {
$this->ilias->raiseError($this->lng->txt("cont_no_manifest"), $this->ilias->error_obj->WARNING);
}
} else {
// gives out the specific error
if (!($check_disc_free > 1)) {
$this->ilias->raiseError($this->lng->txt("Not enough space left on device!"), $this->ilias->error_obj->MESSAGE);
}
return;
}
} else {
// check whether file starts with BOM (that confuses some sax parsers, see bug #1795)
$hmani = fopen($manifest_file, "r");
$start = fread($hmani, 3);
if (strtolower(bin2hex($start)) == "efbbbf") {
$f_write_handler = fopen($manifest_file . ".new", "w");
while (!feof($hmani)) {
$n = fread($hmani, 900);
fputs($f_write_handler, $n);
}
fclose($f_write_handler);
fclose($hmani);
// copy new utf8-file to imsmanifest.xml
if (!copy($manifest_file . ".new", $manifest_file)) {
echo "Failed to copy {$manifest_file}...<br>\n";
}
} else {
fclose($hmani);
}
}
//validate the XML-Files in the SCORM-Package
if ($_POST["validate"] == "y") {
if (!$this->validate($this->getDataDirectory())) {
$this->ilias->raiseError("<b>Validation Error(s):</b><br>" . $this->getValidationSummary(), $this->ilias->error_obj->WARNING);
}
}
//check for SCORM 1.2
$this->convert_1_2_to_2004($manifest_file);
// start SCORM 2004 package parser/importer
include_once "./Modules/Scorm2004/classes/ilSCORM13Package.php";
$newPack = new ilSCORM13Package();
if ($this->getEditable()) {
return $newPack->il_importLM($this, $this->getDataDirectory(), $this->getImportSequencing());
} else {
return $newPack->il_import($this->getDataDirectory(), $this->getId(), $this->ilias, $_POST["validate"]);
}
}
