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Round trip topics from David / Dayton
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<?php | ||
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namespace Koseu\Controllers; | ||
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use Tsugi\Util\U; | ||
use Tsugi\Util\LTI; | ||
use Tsugi\Core\LTIX; | ||
use Silex\Application; | ||
use Symfony\Component\HttpFoundation\Request; | ||
use Symfony\Component\HttpFoundation\Response; | ||
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class Topics { | ||
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const ROUTE = '/topics'; | ||
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const REDIRECT = 'koseu_controllers_topics'; | ||
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public static function routes(Application $app, $prefix=self::ROUTE) { | ||
$app->get($prefix, 'Koseu\\Controllers\\Topics::get'); | ||
$app->get($prefix.'/', 'Koseu\\Controllers\\Topics::get')->bind(self::REDIRECT); | ||
$app->get($prefix.'/{anchor}', 'Koseu\\Controllers\\Topics::get'); | ||
$app->get($prefix.'_launch/{anchor}', 'Koseu\\Controllers\\Topics::launch'); | ||
} | ||
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public function get(Request $request, Application $app, $anchor=null) | ||
{ | ||
global $CFG; | ||
$tsugi = $app['tsugi']; | ||
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if ( ! isset($CFG->topics) ) { | ||
die_with_error_log('Cannot find topics.json ($CFG->topics)'); | ||
} | ||
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// Turning on and off styling | ||
if ( isset($_GET['nostyle']) ) { | ||
if ( $_GET['nostyle'] == 'yes' ) { | ||
$_SESSION['nostyle'] = 'yes'; | ||
} else { | ||
unset($_SESSION['nostyle']); | ||
} | ||
} | ||
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// Load the Topic | ||
$l = new \Tsugi\UI\Topics($CFG->topics,$anchor); | ||
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$context = array(); | ||
$context['head'] = $l->header(true); | ||
$context['container'] = $l->render(true); | ||
$context['footer'] = $l->footer(true); | ||
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return $app['twig']->render('@Koseu/Topics.twig',$context); | ||
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} | ||
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public function launch(Request $request, Application $app, $anchor=null) | ||
{ | ||
global $CFG; | ||
$tsugi = $app['tsugi']; | ||
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$path = U::rest_path(); | ||
$redirect_path = U::addSession($path->parent); | ||
if ( $redirect_path == '') $redirect_path = '/'; | ||
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if ( ! isset($CFG->topics) ) { | ||
$app->tsugiFlashError(__('Cannot find topics.json ($CFG->topics)')); | ||
return $app->redirect($redirect_path); | ||
} | ||
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/// Load the Topic | ||
$l = new \Tsugi\UI\Topics($CFG->topics); | ||
if ( ! $l ) { | ||
$app->tsugiFlashError(__('Cannot load topics.')); | ||
return $app->redirect($redirect_path); | ||
} | ||
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$topic = $l->getTopicByRlid($anchor); | ||
if ( ! $topic ) { | ||
$app->tsugiFlashError(__('Cannot find topic resource link id')); | ||
return $app->redirect($redirect_path); | ||
} | ||
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$lti = $l->getLtiByRlid($anchor); | ||
if ( ! $lti ) { | ||
$app->tsugiFlashError(__('Cannot find lti resource link id')); | ||
return $app->redirect($redirect_path); | ||
} | ||
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// Check that the session has the minimums... | ||
if ( isset($topic->lti) && U::get($_SESSION,'secret') && U::get($_SESSION,'context_key') | ||
&& U::get($_SESSION,'user_key') && U::get($_SESSION,'displayname') && U::get($_SESSION,'email') ) | ||
{ | ||
// All good | ||
} else { | ||
$app->tsugiFlashError(__('Missing session data required for launch')); | ||
return $app->redirect($redirect_path); | ||
} | ||
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$resource_link_title = isset($lti->title) ? $lti->title : $topic->title; | ||
$key = isset($_SESSION['oauth_consumer_key']) ? $_SESSION['oauth_consumer_key'] : false; | ||
$secret = false; | ||
if ( isset($_SESSION['secret']) ) { | ||
$secret = LTIX::decrypt_secret($_SESSION['secret']); | ||
} | ||
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$resource_link_id = $lti->resource_link_id; | ||
$parms = array( | ||
'lti_message_type' => 'basic-lti-launch-request', | ||
'resource_link_id' => $resource_link_id, | ||
'resource_link_title' => $resource_link_title, | ||
'tool_consumer_info_product_family_code' => 'tsugi', | ||
'tool_consumer_info_version' => '1.1', | ||
'context_id' => $_SESSION['context_key'], | ||
'context_label' => $CFG->context_title, | ||
'context_title' => $CFG->context_title, | ||
'user_id' => $_SESSION['user_key'], | ||
'lis_person_name_full' => $_SESSION['displayname'], | ||
'lis_person_contact_email_primary' => $_SESSION['email'], | ||
'roles' => 'Learner' | ||
); | ||
if ( isset($_SESSION['avatar']) ) $parms['user_image'] = $_SESSION['avatar']; | ||
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if ( isset($lti->custom) ) { | ||
foreach($lti->custom as $custom) { | ||
if ( isset($custom->value) ) { | ||
$parms['custom_'.$custom->key] = $custom->value; | ||
} | ||
if ( isset($custom->json) ) { | ||
$parms['custom_'.$custom->key] = json_encode($custom->json); | ||
} | ||
} | ||
} | ||
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$return_url = $path->parent . '/' . str_replace('_launch', '', $path->controller) . '/' . $topic->anchor; | ||
$parms['launch_presentation_return_url'] = $return_url; | ||
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$sess_key = 'tsugi_top_nav_'.$CFG->wwwroot; | ||
if ( isset($_SESSION[$sess_key]) ) { | ||
// $parms['ext_tsugi_top_nav'] = $_SESSION[$sess_key]; | ||
} | ||
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$form_id = "tsugi_form_id_".bin2Hex(openssl_random_pseudo_bytes(4)); | ||
$parms['ext_lti_form_id'] = $form_id; | ||
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$endpoint = $lti->launch; | ||
$parms = LTI::signParameters($parms, $endpoint, "POST", $key, $secret, | ||
"Finish Launch", $CFG->wwwroot, $CFG->servicename); | ||
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$content = LTI::postLaunchHTML($parms, $endpoint, false /*debug */); | ||
print($content); | ||
return ""; | ||
} | ||
} |
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{% extends "@Tsugi/Page.twig" %} | ||
{% block head %} | ||
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{{ head | raw }} | ||
{% endblock %} | ||
{% block content %} | ||
{{ container | raw }} | ||
{% endblock %} | ||
{% block footer %} | ||
{{ footer | raw }} | ||
{% endblock %} |