/**
* Given a coursemodule object, this function returns the extra
* information needed to print this activity in various places.
* For this module we just need to support external urls as
* activity icons
*
* @param stdClass $coursemodule
* @return cached_cm_info info
*/
function lti_get_coursemodule_info($coursemodule)
{
global $DB, $CFG;
require_once $CFG->dirroot . '/mod/lti/locallib.php';
if (!($lti = $DB->get_record('lti', array('id' => $coursemodule->instance), 'icon, secureicon, intro, introformat, name, typeid, toolurl, launchcontainer'))) {
return null;
}
$info = new cached_cm_info();
if ($coursemodule->showdescription) {
// Convert intro to html. Do not filter cached version, filters run at display time.
$info->content = format_module_intro('lti', $lti, $coursemodule->id, false);
}
if (!empty($lti->typeid)) {
$toolconfig = lti_get_type_config($lti->typeid);
} else {
if ($tool = lti_get_tool_by_url_match($lti->toolurl)) {
$toolconfig = lti_get_type_config($tool->id);
} else {
$toolconfig = array();
}
}
// We want to use the right icon based on whether the
// current page is being requested over http or https.
if (lti_request_is_using_ssl() && (!empty($lti->secureicon) || isset($toolconfig['secureicon']) && !empty($toolconfig['secureicon']))) {
if (!empty($lti->secureicon)) {
$info->iconurl = new moodle_url($lti->secureicon);
} else {
$info->iconurl = new moodle_url($toolconfig['secureicon']);
}
} else {
if (!empty($lti->icon)) {
$info->iconurl = new moodle_url($lti->icon);
} else {
if (isset($toolconfig['icon']) && !empty($toolconfig['icon'])) {
$info->iconurl = new moodle_url($toolconfig['icon']);
}
}
}
// Does the link open in a new window?
$launchcontainer = lti_get_launch_container($lti, $toolconfig);
if ($launchcontainer == LTI_LAUNCH_CONTAINER_WINDOW) {
$launchurl = new moodle_url('/mod/lti/launch.php', array('id' => $coursemodule->id));
$info->onclick = "window.open('" . $launchurl->out(false) . "', 'lti'); return false;";
}
$info->name = $lti->name;
return $info;
}
$pageurl->param('id', $id);
}
$PAGE->set_url($pageurl);
admin_externalpage_setup('managemodules');
// Hacky solution for printing the admin page.
$redirect = "{$CFG->wwwroot}/{$CFG->admin}/settings.php?section=modsettinglti&tab={$tab}";
if ($action == 'accept') {
lti_set_state_for_type($id, LTI_TOOL_STATE_CONFIGURED);
redirect($redirect);
} else {
if ($action == 'reject' || $action == 'delete') {
lti_set_state_for_type($id, LTI_TOOL_STATE_REJECTED);
redirect($redirect);
}
}
if (lti_request_is_using_ssl() && !empty($type->lti_secureicon)) {
$type->oldicon = $type->lti_secureicon;
} else {
$type->oldicon = $type->lti_icon;
}
$form = new mod_lti_edit_types_form($pageurl, (object) array('isadmin' => true, 'istool' => true));
if ($data = $form->get_data()) {
$type = new stdClass();
if (!empty($id)) {
$type->id = $id;
lti_update_type($type, $data);
} else {
$type->state = LTI_TOOL_STATE_CONFIGURED;
lti_add_type($type, $data);
}
redirect($redirect);
/**
* Given a coursemodule object, this function returns the extra
* information needed to print this activity in various places.
* For this module we just need to support external urls as
* activity icons
*
* @param cm_info $coursemodule
* @return cached_cm_info info
*/
function lti_get_coursemodule_info($coursemodule) {
global $DB, $CFG;
require_once($CFG->dirroot.'/mod/lti/locallib.php');
if (!$lti = $DB->get_record('lti', array('id' => $coursemodule->instance),
'icon, secureicon, intro, introformat, name')) {
return null;
}
$info = new cached_cm_info();
// We want to use the right icon based on whether the
// current page is being requested over http or https.
if (lti_request_is_using_ssl() && !empty($lti->secureicon)) {
$info->iconurl = new moodle_url($lti->secureicon);
} else if (!empty($lti->icon)) {
$info->iconurl = new moodle_url($lti->icon);
}
if ($coursemodule->showdescription) {
// Convert intro to html. Do not filter cached version, filters run at display time.
$info->content = format_module_intro('lti', $lti, $coursemodule->id, false);
}
$info->name = $lti->name;
return $info;
}
/**
* Prints a Basic LTI activity
*
* $param int $basicltiid Basic LTI activity id
*/
function lti_view($instance) {
global $PAGE, $CFG;
if (empty($instance->typeid)) {
$tool = lti_get_tool_by_url_match($instance->toolurl, $instance->course);
if ($tool) {
$typeid = $tool->id;
} else {
$typeid = null;
}
} else {
$typeid = $instance->typeid;
}
if ($typeid) {
$typeconfig = lti_get_type_config($typeid);
} else {
//There is no admin configuration for this tool. Use configuration in the lti instance record plus some defaults.
$typeconfig = (array)$instance;
$typeconfig['sendname'] = $instance->instructorchoicesendname;
$typeconfig['sendemailaddr'] = $instance->instructorchoicesendemailaddr;
$typeconfig['customparameters'] = $instance->instructorcustomparameters;
$typeconfig['acceptgrades'] = $instance->instructorchoiceacceptgrades;
$typeconfig['allowroster'] = $instance->instructorchoiceallowroster;
$typeconfig['forcessl'] = '0';
}
//Default the organizationid if not specified
if (empty($typeconfig['organizationid'])) {
$urlparts = parse_url($CFG->wwwroot);
$typeconfig['organizationid'] = $urlparts['host'];
}
if (!empty($instance->resourcekey)) {
$key = $instance->resourcekey;
} else if (!empty($typeconfig['resourcekey'])) {
$key = $typeconfig['resourcekey'];
} else {
$key = '';
}
if (!empty($instance->password)) {
$secret = $instance->password;
} else if (!empty($typeconfig['password'])) {
$secret = $typeconfig['password'];
} else {
$secret = '';
}
$endpoint = !empty($instance->toolurl) ? $instance->toolurl : $typeconfig['toolurl'];
$endpoint = trim($endpoint);
//If the current request is using SSL and a secure tool URL is specified, use it
if (lti_request_is_using_ssl() && !empty($instance->securetoolurl)) {
$endpoint = trim($instance->securetoolurl);
}
//If SSL is forced, use the secure tool url if specified. Otherwise, make sure https is on the normal launch URL.
if ($typeconfig['forcessl'] == '1') {
if (!empty($instance->securetoolurl)) {
$endpoint = trim($instance->securetoolurl);
}
$endpoint = lti_ensure_url_is_https($endpoint);
} else {
if (!strstr($endpoint, '://')) {
$endpoint = 'http://' . $endpoint;
}
}
$orgid = $typeconfig['organizationid'];
$course = $PAGE->course;
$requestparams = lti_build_request($instance, $typeconfig, $course);
$launchcontainer = lti_get_launch_container($instance, $typeconfig);
$returnurlparams = array('course' => $course->id, 'launch_container' => $launchcontainer, 'instanceid' => $instance->id);
if ( $orgid ) {
$requestparams["tool_consumer_instance_guid"] = $orgid;
}
if (empty($key) || empty($secret)) {
$returnurlparams['unsigned'] = '1';
//Add the return URL. We send the launch container along to help us avoid frames-within-frames when the user returns
$url = new moodle_url('/mod/lti/return.php', $returnurlparams);
$returnurl = $url->out(false);
if ($typeconfig['forcessl'] == '1') {
$returnurl = lti_ensure_url_is_https($returnurl);
}
$requestparams['launch_presentation_return_url'] = $returnurl;
}
if (!empty($key) && !empty($secret)) {
$parms = lti_sign_parameters($requestparams, $endpoint, "POST", $key, $secret);
} else {
//If no key and secret, do the launch unsigned.
$parms = $requestparams;
}
$debuglaunch = ( $instance->debuglaunch == 1 );
$content = lti_post_launch_html($parms, $endpoint, $debuglaunch);
echo $content;
}
function lti_update_type($type, $config)
{
global $DB, $CFG;
lti_prepare_type_for_save($type, $config);
$clearcache = false;
if (lti_request_is_using_ssl() && !empty($type->secureicon)) {
$clearcache = !isset($config->oldicon) || $config->oldicon !== $type->secureicon;
} else {
$clearcache = isset($type->icon) && (!isset($config->oldicon) || $config->oldicon !== $type->icon);
}
unset($config->oldicon);
if ($DB->update_record('lti_types', $type)) {
foreach ($config as $key => $value) {
if (substr($key, 0, 4) == 'lti_' && !is_null($value)) {
$record = new \StdClass();
$record->typeid = $type->id;
$record->name = substr($key, 4);
$record->value = $value;
lti_update_config($record);
}
}
require_once $CFG->libdir . '/modinfolib.php';
if ($clearcache) {
rebuild_course_cache();
}
}
}
/**
* Prints a Basic LTI activity
*
* $param int $basicltiid Basic LTI activity id
*/
function lti_view($instance)
{
global $PAGE, $CFG;
if (empty($instance->typeid)) {
$tool = lti_get_tool_by_url_match($instance->toolurl, $instance->course);
if ($tool) {
$typeid = $tool->id;
} else {
$typeid = null;
}
} else {
$typeid = $instance->typeid;
}
if ($typeid) {
$typeconfig = lti_get_type_config($typeid);
} else {
//There is no admin configuration for this tool. Use configuration in the lti instance record plus some defaults.
$typeconfig = (array) $instance;
$typeconfig['sendname'] = $instance->instructorchoicesendname;
$typeconfig['sendemailaddr'] = $instance->instructorchoicesendemailaddr;
$typeconfig['customparameters'] = $instance->instructorcustomparameters;
$typeconfig['acceptgrades'] = $instance->instructorchoiceacceptgrades;
$typeconfig['allowroster'] = $instance->instructorchoiceallowroster;
$typeconfig['forcessl'] = '0';
}
//Default the organizationid if not specified
if (empty($typeconfig['organizationid'])) {
$urlparts = parse_url($CFG->wwwroot);
$typeconfig['organizationid'] = $urlparts['host'];
}
if (!empty($instance->resourcekey)) {
$key = $instance->resourcekey;
} else {
if (!empty($typeconfig['resourcekey'])) {
$key = $typeconfig['resourcekey'];
} else {
$key = '';
}
}
if (!empty($instance->password)) {
$secret = $instance->password;
} else {
if (!empty($typeconfig['password'])) {
$secret = $typeconfig['password'];
} else {
$secret = '';
}
}
$endpoint = !empty($instance->toolurl) ? $instance->toolurl : $typeconfig['toolurl'];
$endpoint = trim($endpoint);
//If the current request is using SSL and a secure tool URL is specified, use it
if (lti_request_is_using_ssl() && !empty($instance->securetoolurl)) {
$endpoint = trim($instance->securetoolurl);
}
//If SSL is forced, use the secure tool url if specified. Otherwise, make sure https is on the normal launch URL.
if ($typeconfig['forcessl'] == '1') {
if (!empty($instance->securetoolurl)) {
$endpoint = trim($instance->securetoolurl);
}
$endpoint = lti_ensure_url_is_https($endpoint);
} else {
if (!strstr($endpoint, '://')) {
$endpoint = 'http://' . $endpoint;
}
}
$orgid = $typeconfig['organizationid'];
$course = $PAGE->course;
$requestparams = lti_build_request($instance, $typeconfig, $course, $typeid);
$launchcontainer = lti_get_launch_container($instance, $typeconfig);
$returnurlparams = array('course' => $course->id, 'launch_container' => $launchcontainer, 'instanceid' => $instance->id);
if ($orgid) {
$requestparams["tool_consumer_instance_guid"] = $orgid;
}
if (!empty($CFG->mod_lti_institution_name)) {
$requestparams['tool_consumer_instance_name'] = $CFG->mod_lti_institution_name;
} else {
$requestparams['tool_consumer_instance_name'] = get_site()->fullname;
}
if (empty($key) || empty($secret)) {
$returnurlparams['unsigned'] = '1';
}
// Add the return URL. We send the launch container along to help us avoid frames-within-frames when the user returns.
$url = new moodle_url('/mod/lti/return.php', $returnurlparams);
$returnurl = $url->out(false);
if ($typeconfig['forcessl'] == '1') {
$returnurl = lti_ensure_url_is_https($returnurl);
}
$target = null;
switch ($launchcontainer) {
case LTI_LAUNCH_CONTAINER_EMBED:
case LTI_LAUNCH_CONTAINER_EMBED_NO_BLOCKS:
$target = 'iframe';
break;
case LTI_LAUNCH_CONTAINER_REPLACE_MOODLE_WINDOW:
$target = 'frame';
break;
case LTI_LAUNCH_CONTAINER_WINDOW:
$target = 'window';
break;
}
if (!is_null($target)) {
$requestparams['launch_presentation_document_target'] = $target;
}
$requestparams['launch_presentation_return_url'] = $returnurl;
// Allow request params to be updated by sub-plugins.
$plugins = core_component::get_plugin_list('ltisource');
foreach (array_keys($plugins) as $plugin) {
$pluginparams = component_callback('ltisource_' . $plugin, 'before_launch', array($instance, $endpoint, $requestparams), array());
if (!empty($pluginparams) && is_array($pluginparams)) {
$requestparams = array_merge($requestparams, $pluginparams);
}
}
if (!empty($key) && !empty($secret)) {
$parms = lti_sign_parameters($requestparams, $endpoint, "POST", $key, $secret);
$endpointurl = new moodle_url($endpoint);
$endpointparams = $endpointurl->params();
// Strip querystring params in endpoint url from $parms to avoid duplication.
if (!empty($endpointparams) && !empty($parms)) {
foreach (array_keys($endpointparams) as $paramname) {
if (isset($parms[$paramname])) {
unset($parms[$paramname]);
}
}
}
} else {
//If no key and secret, do the launch unsigned.
$parms = $requestparams;
}
$debuglaunch = $instance->debuglaunch == 1;
$content = lti_post_launch_html($parms, $endpoint, $debuglaunch);
echo $content;
}
function lti_update_type($type, $config) {
global $DB, $CFG;
lti_prepare_type_for_save($type, $config);
$clearcache = false;
if (lti_request_is_using_ssl() && !empty($type->secureicon)) {
$clearcache = !isset($config->oldicon) || ($config->oldicon !== $type->secureicon);
} else {
$clearcache = isset($type->icon) && (!isset($config->oldicon) || ($config->oldicon !== $type->icon));
}
unset($config->oldicon);
if ($DB->update_record('lti_types', $type)) {
foreach ($config as $key => $value) {
if (substr($key, 0, 4) == 'lti_' && !is_null($value)) {
$record = new \StdClass();
$record->typeid = $type->id;
$record->name = substr($key, 4);
$record->value = $value;
lti_update_config($record);
}
}
require_once($CFG->libdir.'/modinfolib.php');
if ($clearcache) {
$sql = "SELECT DISTINCT course
FROM {lti}
WHERE typeid = ?";
$courses = $DB->get_fieldset_sql($sql, array($type->id));
foreach ($courses as $courseid) {
rebuild_course_cache($courseid, true);
}
}
}
}
