/**
* callback function from {@link portfolio_rewrite_pluginfile_urls}
* looks through preg_replace matches and replaces content with whatever the active portfolio export format says
*
* @param int $contextid module context id
* @param string $component module name (eg:mod_assignment)
* @param string $filearea normal file_area arguments
* @param int $itemid component item id
* @param portfolio_format $format exporter format type
* @param array $options extra options to pass through to the file_output function in the format (optional)
* @param array $matches internal matching
* @return object|array|string
*/
function portfolio_rewrite_pluginfile_url_callback($contextid, $component, $filearea, $itemid, $format, $options, $matches)
{
$matches = $matches[0];
// no internal matching
$dom = new DomDocument();
if (!$dom->loadXML($matches)) {
return $matches;
}
$attributes = array();
foreach ($dom->documentElement->attributes as $attr => $node) {
$attributes[$attr] = $node->value;
}
// now figure out the file
$fs = get_file_storage();
$key = 'href';
if (!array_key_exists('href', $attributes) && array_key_exists('src', $attributes)) {
$key = 'src';
}
if (!array_key_exists($key, $attributes)) {
debugging('Couldn\'t find an attribute to use that contains @@PLUGINFILE@@ in portfolio_rewrite_pluginfile');
return $matches;
}
$filename = substr($attributes[$key], strpos($attributes[$key], '@@PLUGINFILE@@') + strlen('@@PLUGINFILE@@'));
$filepath = '/';
if (strpos($filename, '/') !== 0) {
$bits = explode('/', $filename);
$filename = array_pop($bits);
$filepath = implode('/', $bits);
}
if (!($file = $fs->get_file($contextid, $component, $filearea, $itemid, $filepath, $filename))) {
debugging("Couldn't find a file from the embedded path info context {$contextid} component {$component} filearea {$filearea} itemid {$itemid} filepath {$filepath} name {$filename}");
return $matches;
}
if (empty($options)) {
$options = array();
}
$options['attributes'] = $attributes;
return $format->file_output($file, $options);
}
/**
* callback function from {@link portfolio_rewrite_pluginfile_urls}
* looks through preg_replace matches and replaces content with whatever the active portfolio export format says
*
* @param int $contextid module context id
* @param string $component module name (eg:mod_assignment)
* @param string $filearea normal file_area arguments
* @param int $itemid component item id
* @param portfolio_format $format exporter format type
* @param array $options extra options to pass through to the file_output function in the format (optional)
* @param array $matches internal matching
* @return object|array|string
*/
function portfolio_rewrite_pluginfile_url_callback($contextid, $component, $filearea, $itemid, $format, $options, $matches)
{
$matches = $matches[0];
// No internal matching.
// Loads the HTML.
$dom = new DomDocument();
if (!$dom->loadHTML($matches)) {
return $matches;
}
// Navigates to the node.
$xpath = new DOMXPath($dom);
$nodes = $xpath->query('/html/body/child::*');
if (empty($nodes) || count($nodes) > 1) {
// Unexpected sequence, none or too many nodes.
return $matches;
}
$dom = $nodes->item(0);
$attributes = array();
foreach ($dom->attributes as $attr => $node) {
$attributes[$attr] = $node->value;
}
// now figure out the file
$fs = get_file_storage();
$key = 'href';
if (!array_key_exists('href', $attributes) && array_key_exists('src', $attributes)) {
$key = 'src';
}
if (!array_key_exists($key, $attributes)) {
debugging('Couldn\'t find an attribute to use that contains @@PLUGINFILE@@ in portfolio_rewrite_pluginfile');
return $matches;
}
$filename = substr($attributes[$key], strpos($attributes[$key], '@@PLUGINFILE@@') + strlen('@@PLUGINFILE@@'));
$filepath = '/';
if (strpos($filename, '/') !== 0) {
$bits = explode('/', $filename);
$filename = array_pop($bits);
$filepath = implode('/', $bits);
}
if (!($file = $fs->get_file($contextid, $component, $filearea, $itemid, $filepath, urldecode($filename)))) {
debugging("Couldn't find a file from the embedded path info context {$contextid} component {$component} filearea {$filearea} itemid {$itemid} filepath {$filepath} name {$filename}");
return $matches;
}
if (empty($options)) {
$options = array();
}
$options['attributes'] = $attributes;
return $format->file_output($file, $options);
}