$send_mail = isset($_POST['sendMail']) && $_POST['sendMail'] ? 1 : 0;
$isOverwrite = isset($_POST['overwrite']) && $_POST['overwrite'] ? true : false;
$deleteUsersNotInList = isset($_POST['delete_users_not_in_list']) ? true : false;
$sessions = array();
$session_counter = 0;
if ($file_type == 'xml') {
// XML
// SimpleXML for PHP5 deals with various encodings, but how many they are, what are version issues, do we need to waste time with configuration options?
// For avoiding complications we go some sort of "PHP4 way" - we convert the input xml-file into UTF-8 before passing it to the parser.
// Instead of:
// $root = @simplexml_load_file($_FILES['import_file']['tmp_name']);
// we may use the following construct:
// $root = @simplexml_load_string(api_utf8_encode_xml(file_get_contents($_FILES['import_file']['tmp_name'])));
// To ease debugging let us use:
$content = file_get_contents($_FILES['import_file']['tmp_name']);
$content = api_utf8_encode_xml($content);
$root = @simplexml_load_string($content);
unset($content);
if (is_object($root)) {
if (count($root->Users->User) > 0) {
// Creating/updating users from <Sessions> <Users> base node.
foreach ($root->Users->User as $node_user) {
$username = $username_old = trim(api_utf8_decode($node_user->Username));
if (UserManager::is_username_available($username)) {
$password = api_utf8_decode($node_user->Password);
if (empty($password)) {
$password = api_generate_password();
}
switch ($node_user->Status) {
case 'student':
$status = 5;
/**
* Read the XML-file
* @param string $file Path to the XML-file
* @return array All user information read from the file
*/
function parse_xml_data($file)
{
global $users;
$users = array();
$parser = xml_parser_create('UTF-8');
xml_set_element_handler($parser, 'element_start', 'element_end');
xml_set_character_data_handler($parser, 'character_data');
xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, false);
xml_parse($parser, api_utf8_encode_xml(file_get_contents($file)));
xml_parser_free($parser);
return $users;
}
/**
* Parses an imsmanifest.xml file and puts everything into the $manifest array
* @param string Path to the imsmanifest.xml file on the system. If not defined, uses the base path of the course's scorm dir
* @return array Structured array representing the imsmanifest's contents
*/
public function parse_manifest($file = '')
{
if ($this->debug > 0) {
error_log('In scorm::parse_manifest(' . $file . ')', 0);
}
if (empty($file)) {
// Get the path of the imsmanifest file.
}
if (is_file($file) && is_readable($file) && ($xml = @file_get_contents($file))) {
// Parsing using PHP5 DOMXML methods.
if ($this->debug > 0) {
error_log('In scorm::parse_manifest() - Parsing using PHP5 method', 0);
}
//$this->manifest_encoding = api_detect_encoding_xml($xml); // This is the usual way for reading the encoding.
// This method reads the encoding, it tries to be correct even in cases of wrong or missing encoding declarations.
$this->manifest_encoding = self::detect_manifest_encoding($xml);
// UTF-8 is supported by DOMDocument class, this is for sure.
$xml = api_utf8_encode_xml($xml, $this->manifest_encoding);
$doc = new DOMDocument();
$res = @$doc->loadXML($xml);
if ($res === false) {
if ($this->debug > 0) {
error_log('New LP - In scorm::parse_manifest() - Exception thrown when loading ' . $file . ' in DOMDocument', 0);
}
// Throw exception?
return null;
}
if ($this->debug > 1) {
error_log('New LP - Called (encoding:' . $doc->xmlEncoding . ' - saved: ' . $this->manifest_encoding . ')', 0);
}
$root = $doc->documentElement;
if ($root->hasAttributes()) {
$attributes = $root->attributes;
if ($attributes->length !== 0) {
foreach ($attributes as $attrib) {
// <manifest> element attributes
$this->manifest[$attrib->name] = $attrib->value;
}
}
}
$this->manifest['name'] = $root->tagName;
if ($root->hasChildNodes()) {
$children = $root->childNodes;
if ($children->length !== 0) {
foreach ($children as $child) {
// <manifest> element children (can be <metadata>, <organizations> or <resources> )
if ($child->nodeType == XML_ELEMENT_NODE) {
switch ($child->tagName) {
case 'metadata':
// Parse items from inside the <metadata> element.
$this->metadata = new scormMetadata('manifest', $child);
break;
case 'organizations':
// Contains the course structure - this element appears 1 and only 1 time in a package imsmanifest.
// It contains at least one 'organization' sub-element.
$orgs_attribs = $child->attributes;
foreach ($orgs_attribs as $orgs_attrib) {
// Attributes of the <organizations> element.
if ($orgs_attrib->nodeType == XML_ATTRIBUTE_NODE) {
$this->manifest['organizations'][$orgs_attrib->name] = $orgs_attrib->value;
}
}
$orgs_nodes = $child->childNodes;
$i = 0;
$found_an_org = false;
foreach ($orgs_nodes as $orgnode) {
// <organization> elements - can contain <item>, <metadata> and <title>
// Here we are at the 'organization' level. There might be several organization tags but
// there is generally only one.
// There are generally three children nodes we are looking for inside and organization:
// -title
// -item (may contain other item tags or may appear several times inside organization)
// -metadata (relative to the organization)
$found_an_org = false;
switch ($orgnode->nodeType) {
case XML_TEXT_NODE:
// Ignore here.
break;
case XML_ATTRIBUTE_NODE:
// Just in case there would be interesting attributes inside the organization tag.
// There shouldn't as this is a node-level, not a data level.
//$manifest['organizations'][$i][$orgnode->name] = $orgnode->value;
//$found_an_org = true;
break;
case XML_ELEMENT_NODE:
// <item>, <metadata> or <title> (or attributes)
$organizations_attributes = $orgnode->attributes;
foreach ($organizations_attributes as $orgs_attr) {
$this->organizations_att[$orgs_attr->name] = $orgs_attr->value;
}
$oOrganization = new scormOrganization('manifest', $orgnode, $this->manifest_encoding);
if ($oOrganization->identifier != '') {
$name = $oOrganization->get_name();
if (empty($name)) {
// If the org title is empty, use zip file name.
$myname = $this->zipname;
if ($this->lastzipnameindex != 0) {
$myname = $myname + $this->lastzipnameindex;
$this->lastzipnameindex++;
}
$oOrganization->set_name($this->zipname);
}
$this->organizations[$oOrganization->identifier] = $oOrganization;
}
break;
}
}
break;
case 'resources':
if ($child->hasAttributes()) {
$resources_attribs = $child->attributes;
foreach ($resources_attribs as $res_attr) {
if ($res_attr->type == XML_ATTRIBUTE_NODE) {
$this->manifest['resources'][$res_attr->name] = $res_attr->value;
}
}
}
if ($child->hasChildNodes()) {
$resources_nodes = $child->childNodes;
$i = 0;
foreach ($resources_nodes as $res_node) {
$oResource = new scormResource('manifest', $res_node);
if ($oResource->identifier != '') {
$this->resources[$oResource->identifier] = $oResource;
$i++;
}
}
}
// Contains links to physical resources.
break;
case 'manifest':
// Only for sub-manifests.
break;
}
}
}
}
}
unset($doc);
// End parsing using PHP5 DOMXML methods.
} else {
if ($this->debug > 1) {
error_log('New LP - Could not open/read file ' . $file, 0);
}
$this->set_error_msg("File {$file} could not be read");
return null;
}
// TODO: Close the DOM handler.
return $this->manifest;
}