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fix

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This commit is contained in:
Markos Gogoulos
2026-02-10 15:03:00 +02:00
parent 5cdcef2205
commit fae5634729
1 changed files with 71 additions and 25 deletions
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96
lms-plugins/mediacms-moodle/filter/mediacms/launch.php
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@@ -10,9 +10,60 @@
require_once(__DIR__ . '/../../config.php');
require_once($CFG->dirroot . '/mod/lti/lib.php');
require_once($CFG->dirroot . '/mod/lti/locallib.php');
require_once($CFG->dirroot . '/course/modlib.php');
global $SITE, $DB, $PAGE, $OUTPUT, $CFG;
/**
* Find first LTI activity for the MediaCMS tool, or create dummy if none exists
*/
function filter_mediacms_get_dummy_activity($courseid, $typeid) {
global $DB;
// Find any existing LTI activity with this tool
$sql = "SELECT cm.id
FROM {course_modules} cm
JOIN {modules} m ON m.id = cm.module
JOIN {lti} lti ON lti.id = cm.instance
WHERE cm.course = :courseid
AND m.name = 'lti'
AND lti.typeid = :typeid
AND cm.deletioninprogress = 0
LIMIT 1";
$existing = $DB->get_record_sql($sql, ['courseid' => $courseid, 'typeid' => $typeid]);
if ($existing) {
// Ensure it's accessible (fix if created with visible=0)
$cm = get_coursemodule_from_id('lti', $existing->id, 0, false, IGNORE_MISSING);
if ($cm && !$cm->visible) {
set_coursemodule_visible($existing->id, 1);
}
return $existing->id;
}
// No existing activity - create dummy (accessible but hidden from course page)
$moduleinfo = new stdClass();
$moduleinfo->course = $courseid;
$moduleinfo->module = $DB->get_field('modules', 'id', ['name' => 'lti']);
$moduleinfo->modulename = 'lti';
$moduleinfo->section = 0;
$moduleinfo->visible = 1; // Accessible to students
$moduleinfo->visibleoncoursepage = 0; // But hidden from course page
$moduleinfo->name = 'MediaCMS Dummy';
$moduleinfo->intro = 'Placeholder for filter launches';
$moduleinfo->introformat = FORMAT_HTML;
$moduleinfo->typeid = $typeid;
$moduleinfo->instructorchoiceacceptgrades = 0;
$moduleinfo->grade = 0;
$moduleinfo->instructorchoicesendname = 1;
$moduleinfo->instructorchoicesendemailaddr = 1;
$moduleinfo->launchcontainer = LTI_LAUNCH_CONTAINER_EMBED_NO_BLOCKS;
$moduleinfo->instructorcustomparameters = ''; // Empty - we'll override per launch
$result = add_moduleinfo($moduleinfo, get_course($courseid));
return $result->coursemodule;
}
require_login();
$mediatoken = required_param('token', PARAM_ALPHANUMEXT);
@@ -56,6 +107,24 @@ if ($courseid && $courseid != SITEID) {
$course = $SITE;
}
// Get or create dummy activity for this course
try {
$dummy_cmid = filter_mediacms_get_dummy_activity($courseid, $type->id);
} catch (Exception $e) {
if (!has_capability('moodle/course:manageactivities', $context)) {
die('No MediaCMS activity found. Please ask a teacher to add one first.');
}
throw $e;
}
// Get the dummy activity instance from DB
$cm = get_coursemodule_from_id('lti', $dummy_cmid, 0, false, MUST_EXIST);
$instance = $DB->get_record('lti', ['id' => $cm->instance], '*', MUST_EXIST);
// Override with our media token for THIS launch only (doesn't save to DB)
$instance->instructorcustomparameters = "media_friendly_token=" . $mediatoken;
$instance->name = 'MediaCMS Video: ' . $mediatoken;
// Set up page
$PAGE->set_url(new moodle_url('/filter/mediacms/launch.php', [
'token' => $mediatoken,
@@ -67,34 +136,11 @@ $PAGE->set_context($context);
$PAGE->set_pagelayout('embedded');
$PAGE->set_title('MediaCMS');
// Create a dummy LTI instance object
$instance = new stdClass();
$instance->id = 0;
$instance->course = $course->id;
$instance->typeid = $type->id;
$instance->name = 'MediaCMS Video';
$instance->instructorchoiceacceptgrades = 0;
$instance->grade = 0;
$instance->instructorchoicesendname = 1;
$instance->instructorchoicesendemailaddr = 1;
$instance->launchcontainer = LTI_LAUNCH_CONTAINER_EMBED_NO_BLOCKS;
// Pass the token in custom parameters
// MediaCMS expects 'media_friendly_token' to identify the video
$instance->instructorcustomparameters = "media_friendly_token=" . $mediatoken;
// Get type config
$typeconfig = lti_get_type_type_config($type->id);
// Initiate LTI Login
$content = lti_initiate_login($course->id, 0, $instance, $typeconfig, null, 'MediaCMS Video');
// Inject media_token as a hidden field for OIDC flow state if needed
// This ensures the token survives the OIDC roundtrip if the provider supports it
// Standard LTI 1.3 passes it via Custom Claims (instructorcustomparameters) which is handled above.
// However, the original plugin also injected it into the form. We'll keep it for safety.
$hidden_field = '<input type="hidden" name="media_token" value="' . htmlspecialchars($mediatoken, ENT_QUOTES) . '" />';
$content = str_replace('</form>', $hidden_field . '</form>', $content);
// Initiate LTI Login with proper cmid (for permissions) and custom token
$content = lti_initiate_login($course->id, $dummy_cmid, $instance, $typeconfig, null, $instance->name);
echo $OUTPUT->header();
echo $content;