/**
* Validate that a given SharePoint url is accessible with the given client data.
*
* @param string $uncleanurl Uncleaned, unvalidated URL to check.
* @param \local_o365\oauth2\clientdata $clientdata oAuth2 Credentials
* @param \local_o365\httpclientinterface $httpclient An HttpClient to use for transport.
* @return string One of:
* "invalid" : The URL is not a usable SharePoint url.
* "notempty" : The URL is a usable SharePoint url, and the SharePoint site exists.
* "valid" : The URL is a usable SharePoint url, and the SharePoint site doesn't exist.
*/
public static function validate_site($uncleanurl, \local_o365\oauth2\clientdata $clientdata, \local_o365\httpclientinterface $httpclient)
{
$siteinfo = static::parse_site_url($uncleanurl);
if (empty($siteinfo)) {
return 'invalid';
}
$token = \local_o365\oauth2\systemtoken::get_for_new_resource(null, $siteinfo['resource'], $clientdata, $httpclient);
if (empty($token)) {
return 'invalid';
}
$sharepoint = new \local_o365\rest\sharepoint($token, $httpclient);
$sharepoint->override_resource($siteinfo['resource']);
// Try to get the / site's info to validate we can communicate with this parent Sharepoint site.
try {
$mainsiteinfo = $sharepoint->get_site();
} catch (\Exception $e) {
return 'invalid';
}
if ($siteinfo['subsiteurl'] === '/') {
// We just successfully got the / site's info, so if we're going to use that, it's obviously not empty.
return 'notempty';
}
$subsiteexists = $sharepoint->site_exists($siteinfo['subsiteurl']);
return $subsiteexists === true ? 'notempty' : 'valid';
}
/**
* Looks for links pointing to Office 365 Video content and processes them.
*
* @param $link HTML tag containing a link
* @return string HTML content after processing.
*/
function filter_oembed_o365videocallback($link)
{
if (empty($link[3])) {
return $link[0];
}
$link[3] = preg_replace("/&/", "&", $link[3]);
$values = array();
parse_str($link[3], $values);
if (empty($values['chid']) || empty($values['vid'])) {
return $link[0];
}
if (!\local_o365\rest\sharepoint::is_configured()) {
\local_o365\utils::debug('filter_oembed share point is not configured', 'filter_oembed_o365videocallback');
return $link[0];
}
try {
$spresource = \local_o365\rest\sharepoint::get_resource();
if (!empty($spresource)) {
$httpclient = new \local_o365\httpclient();
$clientdata = \local_o365\oauth2\clientdata::instance_from_oidc();
$sptoken = \local_o365\oauth2\systemtoken::instance(null, $spresource, $clientdata, $httpclient);
if (!empty($sptoken)) {
$sharepoint = new \local_o365\rest\sharepoint($sptoken, $httpclient);
// Retrieve api url for video service.
$url = $sharepoint->videoservice_discover();
if (!empty($url)) {
$sharepoint->override_resource($url);
$width = 640;
if (!empty($values['width'])) {
$width = $values['width'];
}
$height = 360;
if (!empty($values['height'])) {
$height = $values['height'];
}
// Retrieve embed code.
return $sharepoint->get_video_embed_code($values['chid'], $values['vid'], $width, $height);
}
}
}
} catch (\Exception $e) {
\local_o365\utils::debug('filter_oembed share point execption: ' . $e->getMessage(), 'filter_oembed_o365videocallback');
}
return $link[0];
}
