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<?php |
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/* For licensing terms, see /license.txt */ |
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use Chamilo\CoreBundle\Entity\Asset; |
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use Chamilo\CoreBundle\Framework\Container; |
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use Chamilo\CourseBundle\Entity\CLp; |
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use Chamilo\CourseBundle\Entity\CLpItem; |
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use Symfony\Component\DomCrawler\Crawler; |
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use League\Flysystem\ZipArchive\ZipArchiveAdapter; |
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/** |
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* Defines the scorm class, which is meant to contain the scorm items (nuclear elements). |
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* |
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* @author Yannick Warnier <[email protected]> |
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*/ |
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class scorm extends learnpath |
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{ |
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public $manifest = []; |
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public $resources = []; |
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public $resources_att = []; |
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public $organizations = []; |
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public $organizations_att = []; |
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public $metadata = []; |
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// Will hold the references to resources for each item ID found. |
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public $idrefs = []; |
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// For each resource found, stores the file url/uri. |
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public $refurls = []; |
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/* Path between the scorm/ directory and the imsmanifest.xml e.g. |
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maritime_nav/maritime_nav. This is the path that will be used in the |
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lp_path when importing a package. */ |
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public $subdir; |
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public $manifestToString; |
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public $items; |
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// Keeps the zipfile safe for the object's life so that we can use it if no title avail. |
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public $zipname = ''; |
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// Keeps an index of the number of uses of the zipname so far. |
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public $lastzipnameindex = 0; |
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public $manifest_encoding = 'UTF-8'; |
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public $asset = true; |
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public $debug = true; |
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/** |
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* Class constructor. Based on the parent constructor. |
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* |
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* @param string Course code |
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* @param int Learnpath ID in DB |
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* @param int User ID |
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*/ |
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public function __construct($courseCode = null, $resource_id = null, $user_id = null) |
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{ |
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$this->items = []; |
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$this->subdir = ''; |
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$this->manifestToString = ''; |
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parent::__construct($courseCode, $resource_id, $user_id); |
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} |
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/** |
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* Opens a resource. |
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* |
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* @param int $id Database ID of the resource |
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*/ |
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public function open($id) |
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{ |
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if ($this->debug > 0) { |
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error_log('scorm::open() - In scorm::open method', 0); |
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} |
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} |
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/** |
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* Possible SCO status: see CAM doc 2.3.2.5.1: passed, completed, browsed, failed, not attempted, incomplete. |
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* Prerequisites: see CAM doc 2.3.2.5.1 for pseudo-code. |
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* |
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* Parses an imsmanifest.xml file and puts everything into the $manifest array. |
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* |
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* @param string Path to the imsmanifest.xml file on the system. |
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* If not defined, uses the base path of the course's scorm dir |
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* |
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* @return array Structured array representing the imsmanifest's contents |
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*/ |
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public function parse_manifest() |
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{ |
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if ($this->manifestToString) { |
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$xml = $this->manifestToString; |
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// $this->manifest_encoding = api_detect_encoding_xml($xml); |
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// This is the usual way for reading the encoding. |
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// This method reads the encoding, it tries to be correct even in cases |
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// of wrong or missing encoding declarations. |
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$this->manifest_encoding = self::detect_manifest_encoding($xml); |
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// UTF-8 is supported by DOMDocument class, this is for sure. |
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$xml = api_utf8_encode_xml($xml, $this->manifest_encoding); |
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$crawler = new Crawler(); |
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$crawler->addXmlContent($xml); |
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$xmlErrors = libxml_get_errors(); |
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if (!empty($xmlErrors)) { |
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if ($this->debug > 0) { |
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error_log('In scorm::parse_manifest() - Exception thrown when loading '.$file.' in DOMDocument'); |
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} |
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// Throw exception? |
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return null; |
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} |
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if ($this->debug > 1) { |
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error_log('Called (encoding:'.$this->manifest_encoding.' - saved: '.$this->manifest_encoding.')', 0); |
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} |
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$root = $crawler->getNode(0); |
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if ($root->hasAttributes()) { |
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$attributes = $root->attributes; |
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if (0 !== $attributes->length) { |
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foreach ($attributes as $attrib) { |
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// <manifest> element attributes |
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$this->manifest[$attrib->name] = $attrib->value; |
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} |
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} |
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} |
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$this->manifest['name'] = $root->tagName; |
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if ($root->hasChildNodes()) { |
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$children = $root->childNodes; |
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if (0 !== $children->length) { |
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foreach ($children as $child) { |
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// <manifest> element children (can be <metadata>, <organizations> or <resources> ) |
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if (XML_ELEMENT_NODE == $child->nodeType) { |
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switch ($child->tagName) { |
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case 'metadata': |
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// Parse items from inside the <metadata> element. |
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$this->metadata = new scormMetadata('manifest', $child); |
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break; |
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case 'organizations': |
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// Contains the course structure - this element appears 1 and only 1 time in a package imsmanifest. |
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// It contains at least one 'organization' sub-element. |
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$orgs_attribs = $child->attributes; |
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foreach ($orgs_attribs as $orgs_attrib) { |
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// Attributes of the <organizations> element. |
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if (XML_ATTRIBUTE_NODE == $orgs_attrib->nodeType) { |
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$this->manifest['organizations'][$orgs_attrib->name] = $orgs_attrib->value; |
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} |
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} |
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$orgs_nodes = $child->childNodes; |
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$i = 0; |
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$found_an_org = false; |
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foreach ($orgs_nodes as $orgnode) { |
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// <organization> elements - can contain <item>, <metadata> and <title> |
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// Here we are at the 'organization' level. There might be several organization tags but |
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// there is generally only one. |
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// There are generally three children nodes we are looking for inside and organization: |
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// -title |
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// -item (may contain other item tags or may appear several times inside organization) |
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// -metadata (relative to the organization) |
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$found_an_org = false; |
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switch ($orgnode->nodeType) { |
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case XML_TEXT_NODE: |
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// Ignore here. |
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break; |
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case XML_ATTRIBUTE_NODE: |
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// Just in case there would be interesting attributes inside the organization tag. |
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// There shouldn't as this is a node-level, not a data level. |
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//$manifest['organizations'][$i][$orgnode->name] = $orgnode->value; |
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//$found_an_org = true; |
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break; |
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case XML_ELEMENT_NODE: |
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// <item>, <metadata> or <title> (or attributes) |
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$organizations_attributes = $orgnode->attributes; |
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foreach ($organizations_attributes as $orgs_attr) { |
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$this->organizations_att[$orgs_attr->name] = $orgs_attr->value; |
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} |
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$oOrganization = new scormOrganization( |
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'manifest', |
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$orgnode, |
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$this->manifest_encoding |
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); |
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if ('' != $oOrganization->identifier) { |
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$name = $oOrganization->get_name(); |
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if (empty($name)) { |
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// If the org title is empty, use zip file name. |
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$myname = $this->zipname; |
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if (0 != $this->lastzipnameindex) { |
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$myname = $myname + $this->lastzipnameindex; |
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$this->lastzipnameindex++; |
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} |
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$oOrganization->set_name($this->zipname); |
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} |
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$this->organizations[$oOrganization->identifier] = $oOrganization; |
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} |
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break; |
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} |
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} |
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break; |
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case 'resources': |
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if ($child->hasAttributes()) { |
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$resources_attribs = $child->attributes; |
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foreach ($resources_attribs as $res_attr) { |
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if (XML_ATTRIBUTE_NODE == $res_attr->type) { |
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$this->manifest['resources'][$res_attr->name] = $res_attr->value; |
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} |
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} |
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} |
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if ($child->hasChildNodes()) { |
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$resources_nodes = $child->childNodes; |
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$i = 0; |
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foreach ($resources_nodes as $res_node) { |
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$oResource = new scormResource('manifest', $res_node); |
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if ('' != $oResource->identifier) { |
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$this->resources[$oResource->identifier] = $oResource; |
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$i++; |
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} |
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} |
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} |
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// Contains links to physical resources. |
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break; |
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case 'manifest': |
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// Only for sub-manifests. |
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break; |
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} |
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} |
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} |
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} |
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} |
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// End parsing using PHP5 DOMXML methods. |
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} else { |
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if ($this->debug > 1) { |
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error_log('Could not open/read file '.$file); |
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} |
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$this->set_error_msg("File $file could not be read"); |
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return null; |
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} |
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// @todo implement learnpath_fix_xerte_template |
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$fixTemplate = api_get_configuration_value('learnpath_fix_xerte_template'); |
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$proxyPath = api_get_configuration_value('learnpath_proxy_url'); |
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/*if ($fixTemplate && !empty($proxyPath)) { |
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// Check organisations: |
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if (isset($this->manifest['organizations'])) { |
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foreach ($this->manifest['organizations'] as $data) { |
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if (false !== strpos(strtolower($data), 'xerte')) { |
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// Check if template.xml exists: |
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$templatePath = str_replace('imsmanifest.xml', 'template.xml', $file); |
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if (file_exists($templatePath) && is_file($templatePath)) { |
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$templateContent = file_get_contents($templatePath); |
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$find = [ |
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'href="www.', |
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'href="https://', |
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'href="http://', |
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'url="www.', |
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'pdfs/download.php?', |
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]; |
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$replace = [ |
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'href="http://www.', |
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'target = "_blank" href="'.$proxyPath.'?type=link&src=https://', |
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'target = "_blank" href="'.$proxyPath.'?type=link&src=http://', |
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'url="http://www.', |
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'pdfs/download.php&', |
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]; |
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$templateContent = str_replace($find, $replace, $templateContent); |
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file_put_contents($templatePath, $templateContent); |
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} |
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262
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263
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// Fix link generation: |
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264
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$linkPath = str_replace('imsmanifest.xml', 'models_html5/links.html', $file); |
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if (file_exists($linkPath) && is_file($linkPath)) { |
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$linkContent = file_get_contents($linkPath); |
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$find = [ |
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':this.getAttribute("url")', |
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]; |
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$replace = [ |
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':"'.$proxyPath.'?type=link&src=" + this.getAttribute("url")', |
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]; |
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$linkContent = str_replace($find, $replace, $linkContent); |
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file_put_contents($linkPath, $linkContent); |
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275
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} |
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276
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277
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// Fix iframe generation |
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278
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$framePath = str_replace('imsmanifest.xml', 'models_html5/embedDiv.html', $file); |
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if (file_exists($framePath) && is_file($framePath)) { |
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$content = file_get_contents($framePath); |
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$find = [ |
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'$iFrameHolder.html(iFrameTag);', |
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]; |
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285
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$replace = [ |
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'iFrameTag = \'<a target ="_blank" href="'.$proxyPath.'?type=link&src=\'+ pageSrc + \'">Open website. <img width="16px" src="'.Display::returnIconPath('link-external.png').'"></a>\'; $iFrameHolder.html(iFrameTag); ', |
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287
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]; |
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288
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$content = str_replace($find, $replace, $content); |
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file_put_contents($framePath, $content); |
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290
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} |
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292
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// Fix new window generation |
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293
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$newWindowPath = str_replace('imsmanifest.xml', 'models_html5/newWindow.html', $file); |
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if (file_exists($newWindowPath) && is_file($newWindowPath)) { |
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296
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$content = file_get_contents($newWindowPath); |
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297
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$find = [ |
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298
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'var src = x_currentPageXML', |
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299
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]; |
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300
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$replace = [ |
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301
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'var src = "'.$proxyPath.'?type=link&src=" + x_currentPageXML', |
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]; |
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303
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$content = str_replace($find, $replace, $content); |
|
304
|
|
|
file_put_contents($newWindowPath, $content); |
|
305
|
|
|
} |
|
306
|
|
|
} |
|
307
|
|
|
} |
|
308
|
|
|
} |
|
309
|
|
|
}*/ |
|
310
|
|
|
|
|
311
|
|
|
// TODO: Close the DOM handler. |
|
312
|
|
|
return $this->manifest; |
|
313
|
|
|
} |
|
314
|
|
|
|
|
315
|
|
|
/** |
|
316
|
|
|
* Import the scorm object (as a result from the parse_manifest function) into the database structure. |
|
317
|
|
|
* |
|
318
|
|
|
* @param string $courseCode |
|
319
|
|
|
* @param int $userMaxScore |
|
320
|
|
|
* @param int $sessionId |
|
321
|
|
|
* |
|
322
|
|
|
* @return bool Returns -1 on error |
|
323
|
|
|
*/ |
|
324
|
|
|
public function import_manifest($courseCode, $userMaxScore = 1, $sessionId = 0) |
|
325
|
|
|
{ |
|
326
|
|
|
if ($this->debug > 0) { |
|
327
|
|
|
error_log('Entered import_manifest('.$courseCode.')', 0); |
|
328
|
|
|
} |
|
329
|
|
|
$courseInfo = api_get_course_info($courseCode); |
|
330
|
|
|
$courseId = $courseInfo['real_id']; |
|
331
|
|
|
|
|
332
|
|
|
// Get table names. |
|
333
|
|
|
$new_lp = Database::get_course_table(TABLE_LP_MAIN); |
|
334
|
|
|
$new_lp_item = Database::get_course_table(TABLE_LP_ITEM); |
|
335
|
|
|
$userMaxScore = (int) $userMaxScore; |
|
336
|
|
|
$sessionId = empty($sessionId) ? api_get_session_id() : (int) $sessionId; |
|
337
|
|
|
|
|
338
|
|
|
$repo = Container::getLpRepository(); |
|
339
|
|
|
$em = Database::getManager(); |
|
340
|
|
|
$lp = null; |
|
341
|
|
|
foreach ($this->organizations as $id => $dummy) { |
|
342
|
|
|
$oOrganization = &$this->organizations[$id]; |
|
343
|
|
|
// Prepare and execute insert queries: |
|
344
|
|
|
// -for learnpath |
|
345
|
|
|
// -for items |
|
346
|
|
|
// -for views? |
|
347
|
|
|
$get_max = "SELECT MAX(display_order) FROM $new_lp WHERE c_id = $courseId "; |
|
348
|
|
|
$res_max = Database::query($get_max); |
|
349
|
|
|
$dsp = 1; |
|
350
|
|
|
if (Database::num_rows($res_max) > 0) { |
|
351
|
|
|
$row = Database::fetch_array($res_max); |
|
352
|
|
|
$dsp = $row[0] + 1; |
|
353
|
|
|
} |
|
354
|
|
|
|
|
355
|
|
|
$courseEntity = api_get_course_entity($courseInfo['real_id']); |
|
356
|
|
|
$myname = api_utf8_decode($oOrganization->get_name()); |
|
357
|
|
|
$lp = new CLp(); |
|
358
|
|
|
$lp |
|
359
|
|
|
->setCId($courseId) |
|
360
|
|
|
->setLpType(CLp::SCORM_TYPE) |
|
361
|
|
|
->setName($myname) |
|
362
|
|
|
->setRef($oOrganization->get_ref()) |
|
363
|
|
|
->setPath($this->subdir) |
|
364
|
|
|
->setDefaultEncoding($this->manifest_encoding) |
|
365
|
|
|
->setJsLib('scorm_api.php') |
|
366
|
|
|
->setDisplayOrder($dsp) |
|
367
|
|
|
->setUseMaxScore($userMaxScore) |
|
368
|
|
|
->setAsset($this->asset) |
|
369
|
|
|
->setSessionId($sessionId) |
|
370
|
|
|
->setParent($courseEntity) |
|
371
|
|
|
->addCourseLink($courseEntity, api_get_session_entity()) |
|
372
|
|
|
; |
|
373
|
|
|
|
|
374
|
|
|
$repo->create($lp); |
|
375
|
|
|
|
|
376
|
|
|
$lp_id = $lp->getIid(); |
|
377
|
|
|
|
|
378
|
|
|
// Now insert all elements from inside that learning path. |
|
379
|
|
|
// Make sure we also get the href and sco/asset from the resources. |
|
380
|
|
|
$list = $oOrganization->get_flat_items_list(); |
|
381
|
|
|
$parents_stack = [0]; |
|
382
|
|
|
$parent = 0; |
|
383
|
|
|
$previous = 0; |
|
384
|
|
|
$level = 0; |
|
385
|
|
|
foreach ($list as $item) { |
|
386
|
|
|
if ($item['level'] > $level) { |
|
387
|
|
|
// Push something into the parents array. |
|
388
|
|
|
array_push($parents_stack, $previous); |
|
389
|
|
|
$parent = $previous; |
|
390
|
|
|
} elseif ($item['level'] < $level) { |
|
391
|
|
|
$diff = $level - $item['level']; |
|
392
|
|
|
// Pop something out of the parents array. |
|
393
|
|
|
for ($j = 1; $j <= $diff; $j++) { |
|
394
|
|
|
$outdated_parent = array_pop($parents_stack); |
|
395
|
|
|
} |
|
396
|
|
|
$parent = array_pop($parents_stack); // Just save that value, then add it back. |
|
397
|
|
|
array_push($parents_stack, $parent); |
|
398
|
|
|
} |
|
399
|
|
|
$path = ''; |
|
400
|
|
|
$type = 'dir'; |
|
401
|
|
|
if (isset($this->resources[$item['identifierref']])) { |
|
402
|
|
|
$oRes = &$this->resources[$item['identifierref']]; |
|
403
|
|
|
$path = @$oRes->get_path(); |
|
404
|
|
|
if (!empty($path)) { |
|
405
|
|
|
$temptype = $oRes->get_scorm_type(); |
|
406
|
|
|
if (!empty($temptype)) { |
|
407
|
|
|
$type = $temptype; |
|
408
|
|
|
} |
|
409
|
|
|
} |
|
410
|
|
|
} |
|
411
|
|
|
$level = $item['level']; |
|
412
|
|
|
$title = $item['title']; |
|
413
|
|
|
$title = api_utf8_decode($title); |
|
414
|
|
|
$max_score = (int) $item['max_score']; |
|
415
|
|
|
if (0 === $max_score) { |
|
416
|
|
|
// If max score is not set The use_max_score parameter |
|
417
|
|
|
// is check in order to use 100 (chamilo style) or '' (strict scorm) |
|
418
|
|
|
$max_score = 'NULL'; |
|
419
|
|
|
if ($userMaxScore) { |
|
420
|
|
|
$max_score = 100; |
|
421
|
|
|
} |
|
422
|
|
|
} else { |
|
423
|
|
|
// Otherwise save the max score. |
|
424
|
|
|
$max_score = "'$max_score'"; |
|
425
|
|
|
} |
|
426
|
|
|
|
|
427
|
|
|
if (empty($title)) { |
|
428
|
|
|
$title = get_lang('Untitled'); |
|
429
|
|
|
} |
|
430
|
|
|
|
|
431
|
|
|
$lpItem = new CLpItem(); |
|
432
|
|
|
$lpItem |
|
433
|
|
|
->setTitle($title) |
|
434
|
|
|
->setCId($courseId) |
|
435
|
|
|
->setItemType($type) |
|
436
|
|
|
->setRef($item['identifier']) |
|
437
|
|
|
->setPath($path) |
|
438
|
|
|
->setMinScore(0) |
|
439
|
|
|
->setMaxScore($max_score) |
|
440
|
|
|
->setParentItemId($parent) |
|
441
|
|
|
->setPreviousItemId($previous) |
|
442
|
|
|
->setNextItemId(0) |
|
443
|
|
|
->setPrerequisite($item['prerequisites']) |
|
444
|
|
|
->setDisplayOrder($item['rel_order']) |
|
445
|
|
|
->setLaunchData($item['datafromlms']) |
|
446
|
|
|
->setParameters($item['parameters']) |
|
447
|
|
|
->setLp($lp) |
|
448
|
|
|
; |
|
449
|
|
|
|
|
450
|
|
|
if (!empty($item['masteryscore'])) { |
|
451
|
|
|
$lpItem->setMasteryScore($item['masteryscore']); |
|
452
|
|
|
} |
|
453
|
|
|
|
|
454
|
|
|
if (!empty($item['maxtimeallowed'])) { |
|
455
|
|
|
$lpItem->setMaxTimeAllowed($item['maxtimeallowed']); |
|
456
|
|
|
} |
|
457
|
|
|
$em->persist($lpItem); |
|
458
|
|
|
$em->flush(); |
|
459
|
|
|
|
|
460
|
|
|
$item_id = $lpItem->getIid(); |
|
461
|
|
|
if ($item_id) { |
|
462
|
|
|
// Now update previous item to change next_item_id. |
|
463
|
|
|
$upd = "UPDATE $new_lp_item SET next_item_id = $item_id |
|
464
|
|
|
WHERE iid = $previous"; |
|
465
|
|
|
Database::query($upd); |
|
466
|
|
|
// Update previous item id. |
|
467
|
|
|
$previous = $item_id; |
|
468
|
|
|
} |
|
469
|
|
|
|
|
470
|
|
|
// Code for indexing, now only index specific fields like terms and the title. |
|
471
|
|
|
if (!empty($_POST['index_document'])) { |
|
472
|
|
|
require_once api_get_path(LIBRARY_PATH).'specific_fields_manager.lib.php'; |
|
473
|
|
|
$di = new ChamiloIndexer(); |
|
474
|
|
|
isset($_POST['language']) ? $lang = Database::escape_string($_POST['language']) : $lang = 'english'; |
|
475
|
|
|
$di->connectDb(null, null, $lang); |
|
476
|
|
|
$ic_slide = new IndexableChunk(); |
|
477
|
|
|
$ic_slide->addValue('title', $title); |
|
478
|
|
|
$specific_fields = get_specific_field_list(); |
|
479
|
|
|
$all_specific_terms = ''; |
|
480
|
|
|
foreach ($specific_fields as $specific_field) { |
|
481
|
|
|
if (isset($_REQUEST[$specific_field['code']])) { |
|
482
|
|
|
$sterms = trim($_REQUEST[$specific_field['code']]); |
|
483
|
|
|
$all_specific_terms .= ' '.$sterms; |
|
484
|
|
|
if (!empty($sterms)) { |
|
485
|
|
|
$sterms = explode(',', $sterms); |
|
486
|
|
|
foreach ($sterms as $sterm) { |
|
487
|
|
|
$ic_slide->addTerm(trim($sterm), $specific_field['code']); |
|
488
|
|
|
} |
|
489
|
|
|
} |
|
490
|
|
|
} |
|
491
|
|
|
} |
|
492
|
|
|
$body_to_index = $all_specific_terms.' '.$title; |
|
493
|
|
|
$ic_slide->addValue("content", $body_to_index); |
|
494
|
|
|
// TODO: Add a comment to say terms separated by commas. |
|
495
|
|
|
$courseid = api_get_course_id(); |
|
496
|
|
|
$ic_slide->addCourseId($courseid); |
|
497
|
|
|
$ic_slide->addToolId(TOOL_LEARNPATH); |
|
498
|
|
|
// TODO: Unify with other lp types. |
|
499
|
|
|
$xapian_data = [ |
|
500
|
|
|
SE_COURSE_ID => $courseid, |
|
501
|
|
|
SE_TOOL_ID => TOOL_LEARNPATH, |
|
502
|
|
|
SE_DATA => ['lp_id' => $lp_id, 'lp_item' => $previous, 'document_id' => ''], |
|
503
|
|
|
SE_USER => api_get_user_id(), |
|
504
|
|
|
]; |
|
505
|
|
|
$ic_slide->xapian_data = serialize($xapian_data); |
|
506
|
|
|
$di->addChunk($ic_slide); |
|
507
|
|
|
// Index and return search engine document id. |
|
508
|
|
|
$did = $di->index(); |
|
509
|
|
|
if ($did) { |
|
510
|
|
|
// Save it to db. |
|
511
|
|
|
$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF); |
|
512
|
|
|
$sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, ref_id_second_level, search_did) |
|
513
|
|
|
VALUES (NULL , \'%s\', \'%s\', %s, %s, %s)'; |
|
514
|
|
|
$sql = sprintf($sql, $tbl_se_ref, $courseCode, TOOL_LEARNPATH, $lp_id, $previous, $did); |
|
515
|
|
|
Database::query($sql); |
|
516
|
|
|
} |
|
517
|
|
|
} |
|
518
|
|
|
} |
|
519
|
|
|
} |
|
520
|
|
|
|
|
521
|
|
|
return $lp; |
|
|
|
|
|
|
522
|
|
|
} |
|
523
|
|
|
|
|
524
|
|
|
/** |
|
525
|
|
|
* Intermediate to import_package only to allow import from local zip files. |
|
526
|
|
|
* |
|
527
|
|
|
* @param string Path to the zip file, from the sys root |
|
528
|
|
|
* @param string Current path (optional) |
|
529
|
|
|
* |
|
530
|
|
|
* @return string Absolute path to the imsmanifest.xml file or empty string on error |
|
531
|
|
|
*/ |
|
532
|
|
|
public function import_local_package($file_path, $currentDir = '') |
|
533
|
|
|
{ |
|
534
|
|
|
// TODO: Prepare info as given by the $_FILES[''] vector. |
|
535
|
|
|
$fileInfo = []; |
|
536
|
|
|
$fileInfo['tmp_name'] = $file_path; |
|
537
|
|
|
$fileInfo['name'] = basename($file_path); |
|
538
|
|
|
// Call the normal import_package function. |
|
539
|
|
|
return $this->import_package($fileInfo, $currentDir); |
|
540
|
|
|
} |
|
541
|
|
|
|
|
542
|
|
|
/** |
|
543
|
|
|
* Imports a zip file into the Chamilo structure. |
|
544
|
|
|
* |
|
545
|
|
|
* @param string $zipFileInfo Zip file info as given by $_FILES['userFile'] |
|
546
|
|
|
* @param string $currentDir |
|
547
|
|
|
* @param array $courseInfo |
|
548
|
|
|
* @param bool $updateDirContents |
|
549
|
|
|
* @param learnpath $lpToCheck |
|
550
|
|
|
* @param bool $allowHtaccess |
|
551
|
|
|
* |
|
552
|
|
|
* @return string $current_dir Absolute path to the imsmanifest.xml file or empty string on error |
|
553
|
|
|
*/ |
|
554
|
|
|
public function import_package( |
|
555
|
|
|
$zipFileInfo, |
|
556
|
|
|
$currentDir = '', |
|
557
|
|
|
$courseInfo = [], |
|
558
|
|
|
$updateDirContents = false, |
|
559
|
|
|
$lpToCheck = null, |
|
560
|
|
|
$allowHtaccess = false |
|
561
|
|
|
) { |
|
562
|
|
|
if ($this->debug) { |
|
563
|
|
|
error_log( |
|
564
|
|
|
'In scorm::import_package('.print_r($zipFileInfo, true).',"'.$currentDir.'") method' |
|
565
|
|
|
); |
|
566
|
|
|
} |
|
567
|
|
|
|
|
568
|
|
|
$courseInfo = empty($courseInfo) ? api_get_course_info() : $courseInfo; |
|
569
|
|
|
$maxFilledSpace = DocumentManager::get_course_quota($courseInfo['code']); |
|
570
|
|
|
$zipFilePath = $zipFileInfo['tmp_name']; |
|
571
|
|
|
$zipFileName = $zipFileInfo['name']; |
|
572
|
|
|
|
|
573
|
|
|
if ($this->debug > 1) { |
|
574
|
|
|
error_log( |
|
575
|
|
|
'import_package() - zip file path = '.$zipFilePath.', zip file name = '.$zipFileName, |
|
576
|
|
|
0 |
|
577
|
|
|
); |
|
578
|
|
|
} |
|
579
|
|
|
|
|
580
|
|
|
//$courseRelDir = api_get_course_path($courseInfo['code']).'/scorm'; // scorm dir web path starting from /courses |
|
581
|
|
|
//$courseSysDir = api_get_path(SYS_COURSE_PATH).$courseRelDir; // Absolute system path for this course. |
|
582
|
|
|
$currentDir = api_replace_dangerous_char(trim($currentDir)); // Current dir we are in, inside scorm/ |
|
583
|
|
|
|
|
584
|
|
|
if ($this->debug > 1) { |
|
585
|
|
|
error_log('import_package() - current_dir = '.$currentDir, 0); |
|
586
|
|
|
} |
|
587
|
|
|
|
|
588
|
|
|
// Get name of the zip file without the extension. |
|
589
|
|
|
$fileInfo = pathinfo($zipFileName); |
|
590
|
|
|
$filename = $fileInfo['basename']; |
|
591
|
|
|
$extension = $fileInfo['extension']; |
|
592
|
|
|
$fileBaseName = str_replace('.'.$extension, '', $filename); // Filename without its extension. |
|
593
|
|
|
$this->zipname = $fileBaseName; // Save for later in case we don't have a title. |
|
594
|
|
|
$newDir = api_replace_dangerous_char(trim($fileBaseName)); |
|
595
|
|
|
$this->subdir = $newDir; |
|
596
|
|
|
if ($this->debug > 1) { |
|
597
|
|
|
error_log('Received zip file name: '.$zipFilePath); |
|
598
|
|
|
error_log("subdir is first set to : ".$this->subdir); |
|
599
|
|
|
error_log("base file name is : ".$fileBaseName); |
|
600
|
|
|
} |
|
601
|
|
|
|
|
602
|
|
|
$zipAdapter = new ZipArchiveAdapter($zipFilePath); |
|
603
|
|
|
$filesystem = new \League\Flysystem\Filesystem($zipAdapter); |
|
604
|
|
|
$zipContentArray = $filesystem->listContents(); |
|
605
|
|
|
|
|
606
|
|
|
$packageType = ''; |
|
607
|
|
|
$manifestList = []; |
|
608
|
|
|
// The following loop should be stopped as soon as we found the right imsmanifest.xml (how to recognize it?). |
|
609
|
|
|
$realFileSize = 0; |
|
610
|
|
|
foreach ($zipContentArray as $thisContent) { |
|
611
|
|
|
$fileName = $thisContent['path']; |
|
612
|
|
|
if (preg_match('~.(php.*|phtml)$~i', $fileName)) { |
|
613
|
|
|
$file = $fileName; |
|
614
|
|
|
$this->set_error_msg("File $file contains a PHP script"); |
|
615
|
|
|
} elseif (stristr($fileName, 'imsmanifest.xml')) { |
|
616
|
|
|
if ($fileName == basename($fileName)) { |
|
617
|
|
|
} else { |
|
618
|
|
|
if ($this->debug > 2) { |
|
619
|
|
|
error_log("subdir is now ".$this->subdir); |
|
620
|
|
|
} |
|
621
|
|
|
} |
|
622
|
|
|
$packageType = 'scorm'; |
|
623
|
|
|
$manifestList[] = $fileName; |
|
624
|
|
|
} |
|
625
|
|
|
|
|
626
|
|
|
if (isset($thisContent['size'])) { |
|
627
|
|
|
$realFileSize += $thisContent['size']; |
|
628
|
|
|
} |
|
629
|
|
|
} |
|
630
|
|
|
|
|
631
|
|
|
// Now get the shortest path (basically, the imsmanifest that is the closest to the root). |
|
632
|
|
|
$shortestPath = $manifestList[0]; |
|
633
|
|
|
$slashCount = substr_count($shortestPath, '/'); |
|
634
|
|
|
foreach ($manifestList as $manifestPath) { |
|
635
|
|
|
$tmpSlashCount = substr_count($manifestPath, '/'); |
|
636
|
|
|
if ($tmpSlashCount < $slashCount) { |
|
637
|
|
|
$shortestPath = $manifestPath; |
|
638
|
|
|
$slashCount = $tmpSlashCount; |
|
639
|
|
|
} |
|
640
|
|
|
} |
|
641
|
|
|
|
|
642
|
|
|
$this->subdir .= '/'.dirname($shortestPath); // Do not concatenate because already done above. |
|
643
|
|
|
$this->manifestToString = $filesystem->read($shortestPath); |
|
644
|
|
|
|
|
645
|
|
|
if ($this->debug) { |
|
646
|
|
|
error_log("Package type is now: '$packageType'"); |
|
647
|
|
|
} |
|
648
|
|
|
if ('' === $packageType) { |
|
649
|
|
|
Display::addFlash( |
|
650
|
|
|
Display::return_message(get_lang('This is not a valid SCORM ZIP file !')) |
|
651
|
|
|
); |
|
652
|
|
|
|
|
653
|
|
|
return false; |
|
654
|
|
|
} |
|
655
|
|
|
|
|
656
|
|
|
// Todo check filesize |
|
657
|
|
|
/*if (!enough_size($realFileSize, $courseSysDir, $maxFilledSpace)) { |
|
658
|
|
|
if ($this->debug > 1) { |
|
659
|
|
|
error_log('Not enough space to store package'); |
|
660
|
|
|
} |
|
661
|
|
|
Display::addFlash( |
|
662
|
|
|
Display::return_message( |
|
663
|
|
|
get_lang( |
|
664
|
|
|
'The upload has failed. Either you have exceeded your maximum quota, or there is not enough disk space.' |
|
665
|
|
|
) |
|
666
|
|
|
) |
|
667
|
|
|
); |
|
668
|
|
|
|
|
669
|
|
|
return false; |
|
670
|
|
|
}*/ |
|
671
|
|
|
|
|
672
|
|
|
/*if ($updateDirContents && $lpToCheck) { |
|
673
|
|
|
$originalPath = str_replace('/.', '', $lpToCheck->path); |
|
674
|
|
|
if ($originalPath != $newDir) { |
|
675
|
|
|
Display::addFlash(Display::return_message(get_lang('The file to upload is not valid.'))); |
|
676
|
|
|
|
|
677
|
|
|
return false; |
|
678
|
|
|
} |
|
679
|
|
|
} |
|
680
|
|
|
|
|
681
|
|
|
// It happens on Linux that $newDir sometimes doesn't start with '/' |
|
682
|
|
|
if ('/' !== $newDir[0]) { |
|
683
|
|
|
$newDir = '/'.$newDir; |
|
684
|
|
|
} |
|
685
|
|
|
|
|
686
|
|
|
if ('/' === $newDir[strlen($newDir) - 1]) { |
|
687
|
|
|
$newDir = substr($newDir, 0, -1); |
|
688
|
|
|
}*/ |
|
689
|
|
|
|
|
690
|
|
|
|
|
691
|
|
|
/* Uncompressing phase */ |
|
692
|
|
|
/* |
|
693
|
|
|
We need to process each individual file in the zip archive to |
|
694
|
|
|
- add it to the database |
|
695
|
|
|
- parse & change relative html links |
|
696
|
|
|
- make sure the filenames are secure (filter funny characters or php extensions) |
|
697
|
|
|
*/ |
|
698
|
|
|
|
|
699
|
|
|
|
|
700
|
|
|
// 1. Upload zip file |
|
701
|
|
|
$request = Container::getRequest(); |
|
702
|
|
|
$uploadFile = null; |
|
703
|
|
|
if ($request->files->has('user_file')) { |
|
704
|
|
|
$uploadFile = $request->files->get('user_file'); |
|
705
|
|
|
} |
|
706
|
|
|
$em = Database::getManager(); |
|
707
|
|
|
$asset = new Asset(); |
|
708
|
|
|
$asset |
|
709
|
|
|
->setCategory(Asset::SCORM) |
|
710
|
|
|
->setTitle($zipFileName) |
|
711
|
|
|
->setFile($uploadFile) |
|
712
|
|
|
->setCompressed(true) |
|
713
|
|
|
; |
|
714
|
|
|
$em->persist($asset); |
|
715
|
|
|
$em->flush(); |
|
716
|
|
|
|
|
717
|
|
|
// 2. Unzip file |
|
718
|
|
|
$repo = Container::getAssetRepository(); |
|
719
|
|
|
$repo->unZipFile($asset, $zipAdapter); |
|
720
|
|
|
$this->asset = $asset; |
|
721
|
|
|
|
|
722
|
|
|
/*if (is_dir($courseSysDir.$newDir) || |
|
723
|
|
|
@mkdir( |
|
724
|
|
|
$courseSysDir.$newDir, |
|
725
|
|
|
api_get_permissions_for_new_directories() |
|
726
|
|
|
) |
|
727
|
|
|
) { |
|
728
|
|
|
// PHP method - slower... |
|
729
|
|
|
if ($this->debug >= 1) { |
|
730
|
|
|
error_log('Changing dir to '.$courseSysDir.$newDir); |
|
731
|
|
|
} |
|
732
|
|
|
|
|
733
|
|
|
chdir($courseSysDir.$newDir); |
|
734
|
|
|
|
|
735
|
|
|
$callBack = 'clean_up_files_in_zip'; |
|
736
|
|
|
if ($allowHtaccess) { |
|
737
|
|
|
$callBack = 'cleanZipFilesAllowHtaccess'; |
|
738
|
|
|
} |
|
739
|
|
|
|
|
740
|
|
|
if (api_get_configuration_value('skip_scorm_package_clean_up')) { |
|
741
|
|
|
$callBack = 'cleanZipFilesNoRename'; |
|
742
|
|
|
} |
|
743
|
|
|
|
|
744
|
|
|
$zipFile->extract( |
|
745
|
|
|
PCLZIP_CB_PRE_EXTRACT, |
|
746
|
|
|
$callBack |
|
747
|
|
|
); |
|
748
|
|
|
|
|
749
|
|
|
if (!empty($newDir)) { |
|
750
|
|
|
$newDir = $newDir.'/'; |
|
751
|
|
|
} |
|
752
|
|
|
api_chmod_R($courseSysDir.$newDir, api_get_permissions_for_new_directories()); |
|
753
|
|
|
} else { |
|
754
|
|
|
return false; |
|
755
|
|
|
}*/ |
|
756
|
|
|
|
|
757
|
|
|
//return $courseSysDir.$newDir.$manifest; |
|
758
|
|
|
|
|
759
|
|
|
return $asset; |
|
760
|
|
|
} |
|
761
|
|
|
|
|
762
|
|
|
/** |
|
763
|
|
|
* Exports the current SCORM object's files as a zip. |
|
764
|
|
|
* Excerpts taken from learnpath_functions.inc.php::exportpath(). |
|
765
|
|
|
* |
|
766
|
|
|
* @param int Learnpath ID (optional, taken from object context if not defined) |
|
767
|
|
|
* |
|
768
|
|
|
* @return bool |
|
769
|
|
|
*/ |
|
770
|
|
|
public function export_zip($lp_id = null) |
|
771
|
|
|
{ |
|
772
|
|
|
if ($this->debug > 0) { |
|
773
|
|
|
error_log('In scorm::export_zip method('.$lp_id.')'); |
|
774
|
|
|
} |
|
775
|
|
|
if (empty($lp_id)) { |
|
776
|
|
|
if (!is_object($this)) { |
|
777
|
|
|
return false; |
|
778
|
|
|
} else { |
|
779
|
|
|
$id = $this->get_id(); |
|
780
|
|
|
if (empty($id)) { |
|
781
|
|
|
return false; |
|
782
|
|
|
} else { |
|
783
|
|
|
$lp_id = $this->get_id(); |
|
784
|
|
|
} |
|
785
|
|
|
} |
|
786
|
|
|
} |
|
787
|
|
|
//zip everything that is in the corresponding scorm dir |
|
788
|
|
|
//write the zip file somewhere (might be too big to return) |
|
789
|
|
|
|
|
790
|
|
|
$_course = api_get_course_info(); |
|
791
|
|
|
$tbl_lp = Database::get_course_table(TABLE_LP_MAIN); |
|
792
|
|
|
$sql = "SELECT * FROM $tbl_lp WHERE iid = $lp_id"; |
|
793
|
|
|
$result = Database::query($sql); |
|
794
|
|
|
$row = Database::fetch_array($result); |
|
795
|
|
|
$LPname = $row['path']; |
|
796
|
|
|
$list = explode('/', $LPname); |
|
797
|
|
|
$LPnamesafe = $list[0]; |
|
798
|
|
|
$zipfoldername = api_get_path(SYS_COURSE_PATH).$_course['directory'].'/temp/'.$LPnamesafe; |
|
|
|
|
|
|
799
|
|
|
$scormfoldername = api_get_path(SYS_COURSE_PATH).$_course['directory'].'/scorm/'.$LPnamesafe; |
|
800
|
|
|
$zipfilename = $zipfoldername.'/'.$LPnamesafe.'.zip'; |
|
801
|
|
|
|
|
802
|
|
|
// Get a temporary dir for creating the zip file. |
|
803
|
|
|
//error_log('cleaning dir '.$zipfoldername, 0); |
|
804
|
|
|
my_delete($zipfoldername); // Make sure the temp dir is cleared. |
|
805
|
|
|
mkdir($zipfoldername, api_get_permissions_for_new_directories()); |
|
806
|
|
|
|
|
807
|
|
|
// Create zipfile of given directory. |
|
808
|
|
|
$zip_folder = new PclZip($zipfilename); |
|
809
|
|
|
$zip_folder->create($scormfoldername.'/', PCLZIP_OPT_REMOVE_PATH, $scormfoldername.'/'); |
|
|
|
|
|
|
810
|
|
|
|
|
811
|
|
|
//This file sending implies removing the default mime-type from php.ini |
|
812
|
|
|
//DocumentManager::file_send_for_download($zipfilename, true, $LPnamesafe.'.zip'); |
|
813
|
|
|
DocumentManager::file_send_for_download($zipfilename, true); |
|
814
|
|
|
|
|
815
|
|
|
// Delete the temporary zip file and directory in fileManage.lib.php |
|
816
|
|
|
my_delete($zipfilename); |
|
817
|
|
|
my_delete($zipfoldername); |
|
818
|
|
|
|
|
819
|
|
|
return true; |
|
820
|
|
|
} |
|
821
|
|
|
|
|
822
|
|
|
/** |
|
823
|
|
|
* Gets a resource's path if available, otherwise return empty string. |
|
824
|
|
|
* |
|
825
|
|
|
* @param string Resource ID as used in resource array |
|
826
|
|
|
* |
|
827
|
|
|
* @return string The resource's path as declared in imsmanifest.xml |
|
828
|
|
|
*/ |
|
829
|
|
|
public function get_res_path($id) |
|
830
|
|
|
{ |
|
831
|
|
|
if ($this->debug > 0) { |
|
832
|
|
|
error_log('In scorm::get_res_path('.$id.') method'); |
|
833
|
|
|
} |
|
834
|
|
|
$path = ''; |
|
835
|
|
|
if (isset($this->resources[$id])) { |
|
836
|
|
|
$oRes = &$this->resources[$id]; |
|
837
|
|
|
$path = @$oRes->get_path(); |
|
838
|
|
|
} |
|
839
|
|
|
|
|
840
|
|
|
return $path; |
|
841
|
|
|
} |
|
842
|
|
|
|
|
843
|
|
|
/** |
|
844
|
|
|
* Gets a resource's type if available, otherwise return empty string. |
|
845
|
|
|
* |
|
846
|
|
|
* @param string Resource ID as used in resource array |
|
847
|
|
|
* |
|
848
|
|
|
* @return string The resource's type as declared in imsmanifest.xml |
|
849
|
|
|
*/ |
|
850
|
|
|
public function get_res_type($id) |
|
851
|
|
|
{ |
|
852
|
|
|
if ($this->debug > 0) { |
|
853
|
|
|
error_log('In scorm::get_res_type('.$id.') method'); |
|
854
|
|
|
} |
|
855
|
|
|
$type = ''; |
|
856
|
|
|
if (isset($this->resources[$id])) { |
|
857
|
|
|
$oRes = &$this->resources[$id]; |
|
858
|
|
|
$temptype = $oRes->get_scorm_type(); |
|
859
|
|
|
if (!empty($temptype)) { |
|
860
|
|
|
$type = $temptype; |
|
861
|
|
|
} |
|
862
|
|
|
} |
|
863
|
|
|
|
|
864
|
|
|
return $type; |
|
865
|
|
|
} |
|
866
|
|
|
|
|
867
|
|
|
/** |
|
868
|
|
|
* Gets the default organisation's title. |
|
869
|
|
|
* |
|
870
|
|
|
* @return string The organization's title |
|
871
|
|
|
*/ |
|
872
|
|
|
public function get_title() |
|
873
|
|
|
{ |
|
874
|
|
|
if ($this->debug > 0) { |
|
875
|
|
|
error_log('In scorm::get_title() method'); |
|
876
|
|
|
} |
|
877
|
|
|
$title = ''; |
|
878
|
|
|
if (isset($this->manifest['organizations']['default'])) { |
|
879
|
|
|
$title = $this->organizations[$this->manifest['organizations']['default']]->get_name(); |
|
880
|
|
|
} elseif (1 == count($this->organizations)) { |
|
881
|
|
|
// This will only get one title but so we don't need to know the index. |
|
882
|
|
|
foreach ($this->organizations as $id => $value) { |
|
883
|
|
|
$title = $this->organizations[$id]->get_name(); |
|
884
|
|
|
break; |
|
885
|
|
|
} |
|
886
|
|
|
} |
|
887
|
|
|
|
|
888
|
|
|
return $title; |
|
889
|
|
|
} |
|
890
|
|
|
|
|
891
|
|
|
/** |
|
892
|
|
|
* // TODO @TODO Implement this function to restore items data from an imsmanifest, |
|
893
|
|
|
* updating the existing table... This will prove very useful in case initial data |
|
894
|
|
|
* from imsmanifest were not imported well enough. |
|
895
|
|
|
* |
|
896
|
|
|
* @param string $courseCode |
|
897
|
|
|
* @param int LP ID (in database) |
|
898
|
|
|
* @param string Manifest file path (optional if lp_id defined) |
|
899
|
|
|
* |
|
900
|
|
|
* @return int New LP ID or false on failure |
|
901
|
|
|
* TODO @TODO Implement imsmanifest_path parameter |
|
902
|
|
|
*/ |
|
903
|
|
|
public function reimport_manifest($courseCode, $lp_id = null, $imsmanifest_path = '') |
|
904
|
|
|
{ |
|
905
|
|
|
if ($this->debug > 0) { |
|
906
|
|
|
error_log('In scorm::reimport_manifest() method', 0); |
|
907
|
|
|
} |
|
908
|
|
|
|
|
909
|
|
|
$courseInfo = api_get_course_info($courseCode); |
|
910
|
|
|
if (empty($courseInfo)) { |
|
911
|
|
|
$this->error = 'Course code does not exist in database'; |
|
912
|
|
|
|
|
913
|
|
|
return false; |
|
914
|
|
|
} |
|
915
|
|
|
|
|
916
|
|
|
$this->cc = $courseInfo['code']; |
|
917
|
|
|
|
|
918
|
|
|
$lp_table = Database::get_course_table(TABLE_LP_MAIN); |
|
919
|
|
|
$lp_id = intval($lp_id); |
|
920
|
|
|
$sql = "SELECT * FROM $lp_table WHERE iid = $lp_id"; |
|
921
|
|
|
if ($this->debug > 2) { |
|
922
|
|
|
error_log('scorm::reimport_manifest() '.__LINE__.' - Querying lp: '.$sql); |
|
923
|
|
|
} |
|
924
|
|
|
$res = Database::query($sql); |
|
925
|
|
|
if (Database::num_rows($res) > 0) { |
|
926
|
|
|
$this->lp_id = $lp_id; |
|
927
|
|
|
$row = Database::fetch_array($res); |
|
928
|
|
|
$this->type = $row['lp_type']; |
|
929
|
|
|
$this->name = stripslashes($row['name']); |
|
930
|
|
|
$this->encoding = $row['default_encoding']; |
|
931
|
|
|
$this->proximity = $row['content_local']; |
|
932
|
|
|
$this->maker = $row['content_maker']; |
|
933
|
|
|
$this->prevent_reinit = $row['prevent_reinit']; |
|
934
|
|
|
$this->license = $row['content_license']; |
|
935
|
|
|
$this->scorm_debug = $row['debug']; |
|
936
|
|
|
$this->js_lib = $row['js_lib']; |
|
937
|
|
|
$this->path = $row['path']; |
|
938
|
|
|
if (2 == $this->type) { |
|
939
|
|
|
if (1 == $row['force_commit']) { |
|
940
|
|
|
$this->force_commit = true; |
|
941
|
|
|
} |
|
942
|
|
|
} |
|
943
|
|
|
$this->mode = $row['default_view_mod']; |
|
944
|
|
|
$this->subdir = $row['path']; |
|
945
|
|
|
} |
|
946
|
|
|
// Parse the manifest (it is already in this lp's details). |
|
947
|
|
|
$manifest_file = api_get_path(SYS_COURSE_PATH).$courseInfo['directory'].'/scorm/'.$this->subdir.'/imsmanifest.xml'; |
|
|
|
|
|
|
948
|
|
|
if ('' == $this->subdir) { |
|
949
|
|
|
$manifest_file = api_get_path(SYS_COURSE_PATH).$courseInfo['directory'].'/scorm/imsmanifest.xml'; |
|
950
|
|
|
} |
|
951
|
|
|
echo $manifest_file; |
|
952
|
|
|
if (is_file($manifest_file) && is_readable($manifest_file)) { |
|
953
|
|
|
// Re-parse the manifest file. |
|
954
|
|
|
if ($this->debug > 1) { |
|
955
|
|
|
error_log('In scorm::reimport_manifest() - Parsing manifest '.$manifest_file); |
|
956
|
|
|
} |
|
957
|
|
|
$manifest = $this->parse_manifest($manifest_file); |
|
958
|
|
|
// Import new LP in DB (ignore the current one). |
|
959
|
|
|
if ($this->debug > 1) { |
|
960
|
|
|
error_log('In scorm::reimport_manifest() - Importing manifest '.$manifest_file); |
|
961
|
|
|
} |
|
962
|
|
|
$this->import_manifest($this->cc); |
|
963
|
|
|
} else { |
|
964
|
|
|
if ($this->debug > 0) { |
|
965
|
|
|
error_log('In scorm::reimport_manifest() - Could not find manifest file at '.$manifest_file); |
|
966
|
|
|
} |
|
967
|
|
|
} |
|
968
|
|
|
|
|
969
|
|
|
return false; |
|
970
|
|
|
} |
|
971
|
|
|
|
|
972
|
|
|
/** |
|
973
|
|
|
* Detects the encoding of a given manifest (a xml-text). |
|
974
|
|
|
* It is possible the encoding of the manifest to be wrongly declared or |
|
975
|
|
|
* not to be declared at all. The proposed method tries to resolve these problems. |
|
976
|
|
|
* |
|
977
|
|
|
* @param string $xml the input xml-text |
|
978
|
|
|
* |
|
979
|
|
|
* @return string the detected value of the input xml |
|
980
|
|
|
*/ |
|
981
|
|
|
private function detect_manifest_encoding(&$xml) |
|
982
|
|
|
{ |
|
983
|
|
|
if (api_is_valid_utf8($xml)) { |
|
984
|
|
|
return 'UTF-8'; |
|
985
|
|
|
} |
|
986
|
|
|
|
|
987
|
|
|
if (preg_match(_PCRE_XML_ENCODING, $xml, $matches)) { |
|
988
|
|
|
$declared_encoding = api_refine_encoding_id($matches[1]); |
|
989
|
|
|
} else { |
|
990
|
|
|
$declared_encoding = ''; |
|
991
|
|
|
} |
|
992
|
|
|
|
|
993
|
|
|
if (!empty($declared_encoding) && !api_is_utf8($declared_encoding)) { |
|
994
|
|
|
return $declared_encoding; |
|
995
|
|
|
} |
|
996
|
|
|
|
|
997
|
|
|
$test_string = ''; |
|
998
|
|
|
if (preg_match_all('/<langstring[^>]*>(.*)<\/langstring>/m', $xml, $matches)) { |
|
999
|
|
|
$test_string = implode("\n", $matches[1]); |
|
1000
|
|
|
unset($matches); |
|
1001
|
|
|
} |
|
1002
|
|
|
if (preg_match_all('/<title[^>]*>(.*)<\/title>/m', $xml, $matches)) { |
|
1003
|
|
|
$test_string .= "\n".implode("\n", $matches[1]); |
|
1004
|
|
|
unset($matches); |
|
1005
|
|
|
} |
|
1006
|
|
|
if (empty($test_string)) { |
|
1007
|
|
|
$test_string = $xml; |
|
1008
|
|
|
} |
|
1009
|
|
|
|
|
1010
|
|
|
return api_detect_encoding($test_string); |
|
1011
|
|
|
} |
|
1012
|
|
|
} |
|
1013
|
|
|
|
chamilo /
chamilo-lms
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