public function onRun()
{
if (!is_null($this->property('experienceInstance'))) {
$instance = ExperienceModel::find($this->property('experienceInstance'));
$maxExperiencePts = $instance->total_points;
$exComp = new ExperienceComponent();
$exComp->initVariables($this->property('experienceInstance'));
$points = $exComp->getUserPoints();
$roots = new Roots();
$standards = $roots->getGradingStandards();
$grading_scheme = $standards[0]->grading_scheme;
$letterGrade = $this->getLetterGrade($points, $maxExperiencePts, $grading_scheme);
$bonusPenaltiesObj = $exComp->calculateTotalBonusPenalties($this->property('experienceInstance'));
$totalBonusPenalties = $bonusPenaltiesObj->bonus + $bonusPenaltiesObj->penalties;
//penalties come with negative sign
$this->page['XP'] = round($points, 2);
$this->page['gradeBonus'] = round($totalBonusPenalties, 2);
$this->page['letterGrade'] = $letterGrade;
} else {
$this->page['XP'] = 0;
$this->page['gradeBonus'] = 0;
$this->page['letterGrade'] = "F";
}
//todo: get the bonus, etc from blade, not from experience
$size = $this->property('size');
$this->page['gradeSize'] = $size;
$this->addJs("/plugins/delphinium/blossom/assets/javascript/grade.js");
$this->addCss("/plugins/delphinium/blossom/assets/css/animate.css");
$this->addCss("/plugins/delphinium/blossom/assets/css/grade.css");
$this->addCss("/plugins/delphinium/blossom/assets/css/main.css");
}
public function saveUserInfo()
{
if (!isset($_SESSION)) {
session_start();
}
$code = \Input::get('code');
$lti = \Input::get('lti');
$instanceFromDB = LtiConfigurations::find($lti);
$clientId = $instanceFromDB['DeveloperId'];
$developerSecret = $instanceFromDB['DeveloperSecret'];
$opts = array('http' => array('method' => 'POST'));
$context = stream_context_create($opts);
$url = "https://{$_SESSION['domain']}/login/oauth2/token?client_id={$clientId}&client_secret={$developerSecret}&code={$code}";
$userTokenJSON = file_get_contents($url, false, $context, -1, 40000);
$userToken = json_decode($userTokenJSON);
$actualToken = $userToken->access_token;
$encryptedToken = \Crypt::encrypt($actualToken);
$_SESSION['userToken'] = $encryptedToken;
//store encrypted token in the database
$courseId = $_SESSION['courseID'];
$userId = $_SESSION['userID'];
//make sure we have the user stored in the user table and in the userCourse table.
$roots = new Roots();
//when we get the user from the LMS it gets stored in the DB.
$roots->getUser($userId);
$dbHelper = new DbHelper();
$role = $dbHelper->getRole('Approver');
$userCourse = UserCourse::firstOrNew(array('user_id' => $userId, 'course_id' => $courseId));
$userCourse->user_id = $userId;
$userCourse->course_id = $courseId;
$userCourse->role = $role->id;
$userCourse->encrypted_token = $encryptedToken;
$userCourse->save();
echo "App has been approved. Please reload this page";
}
public function getModules($freshData)
{
$moduleId = null;
$moduleItemId = null;
$includeContentDetails = true;
$includeContentItems = true;
$module = null;
$moduleItem = null;
$req = new ModulesRequest(ActionType::GET, $moduleId, $moduleItemId, $includeContentItems, $includeContentDetails, $module, $moduleItem, $freshData);
$roots = new Roots();
$moduleData = $roots->modules($req);
$modArr = $moduleData->toArray();
$simpleModules = array();
foreach ($modArr as $item) {
$mod = new \stdClass();
$mod->id = $item['module_id'];
$mod->value = $item['name'];
$simpleModules[] = $mod;
}
$this->page['rawData'] = json_encode($simpleModules);
$iris = new IrisClass();
$result = $iris->buildTree($modArr);
$tempArray = array();
if (count($result) < 1) {
$parent;
$allChildren;
$final = array();
//The parent will be the first PUBLISHED item
$firstItem;
foreach ($moduleData as $item) {
if ($item['published'] == "1") {
$firstItem = $item;
break;
}
}
$newArr = $this->unsetValue($modArr, $firstItem);
//remove parent from array
$firstParentId = $firstItem["module_id"];
$i = 0;
foreach ($newArr as $item) {
$item["parent_id"] = $firstParentId;
//each item must have a parentId of the first module
$item["children"] = [];
$item["order"] = $i;
$final[] = $item;
$i++;
}
//remove the first Item (which is the parent)
$firstItem["parent_id"] = 1;
$firstItem["children"] = $final;
$firstItem["order"] = 0;
$tempArray[] = $firstItem;
} else {
$tempArray = $result;
}
return $tempArray;
}
public function doBltiHandshake()
{
//first obtain the details of the LTI configuration they chose
$instanceFromDB = LtiConfigurations::find($this->property('ltiInstance'));
$approver = $this->property('approver');
$arr = $this->getApproverOptions();
$approverRole = $arr[$approver];
if (!isset($_SESSION)) {
session_start();
}
$_SESSION['baseUrl'] = Config::get('app.url', 'backend');
$_SESSION['courseID'] = \Input::get('custom_canvas_course_id');
$_SESSION['userID'] = \Input::get('custom_canvas_user_id');
$_SESSION['domain'] = \Input::get('custom_canvas_api_domain');
//TODO: make sure this parameter below works with all other LMSs
$_SESSION['lms'] = \Input::get('tool_consumer_info_product_family_code');
//check to see if user is an Instructor
$rolesStr = \Input::get('roles');
$consumerKey = $instanceFromDB['ConsumerKey'];
$clientId = $instanceFromDB['DeveloperId'];
//Check to see if the lti handshake passes
$context = new Blti($consumerKey, false, false);
if ($context->valid) {
// query DB to see if user has token, if yes, go to LTI.
$userCheck = User::where('course_id', $_SESSION['courseID'])->first();
if (!$userCheck) {
//if no user is found, redirect to canvas permission page
if (stristr($rolesStr, $approverRole)) {
//As per my discussion with Jared, we will use the instructor's token only. This is the token that will be stored in the DB
//and the one that will be used to make all requests. We will NOT store student's tokens.
//TODO: take this redirectUri out into some parameter somewhere...
$redirectUri = "{$_SESSION['baseUrl']}saveUserInfo?lti={$this->property('ltiInstance')}";
$url = "https://{$_SESSION['domain']}/login/oauth2/auth?client_id={$clientId}&response_type=code&redirect_uri={$redirectUri}";
$this->redirect($url);
} else {
echo "A(n) {$approverRole} must authorize this course. Please contact your instructor.";
return;
}
} else {
//set the professor's token
$_SESSION['userToken'] = $userCheck->encrypted_token;
//get the timezone
$roots = new Roots();
$course = $roots->getCourse();
$account_id = $course->account_id;
$account = $roots->getAccount($account_id);
$_SESSION['timezone'] = new \DateTimeZone($account->default_time_zone);
}
} else {
echo 'There is a problem. Please notify your instructor';
}
}
public function getFilterOptions()
{
$req = new ModulesRequest(ActionType::GET, null, null, true, true, null, null, false);
$roots = new Roots();
$moduleData = $roots->modules($req);
$arr = $moduleData->toArray();
$tree = $this->buildTree($arr, 1);
$dash = "";
$result = array();
$result[$tree[0]['module_id']] = "({$tree[0]['name']})";
foreach ($tree as $item) {
$this->recursion($item['children'], $dash, $result);
}
return $result;
}
public function getStudentSubmissions()
{
$studentId = \Input::get('studentId');
$studentIds = array($studentId);
$assignmentIds = array();
//if we leave this param empty it will return all of the available submissions
//(see https://canvas.instructure.com/doc/api/submissions.html#method.submissions_api.for_students)
$multipleStudents = false;
$multipleAssignments = true;
$allStudents = false;
$allAssignments = true;
//can have the student Id param null if multipleUsers is set to false (we'll only get the current user's submissions)
$req = new SubmissionsRequest(ActionType::GET, $studentIds, $allStudents, $assignmentIds, $allAssignments, $multipleStudents, $multipleAssignments);
$roots = new Roots();
$res = $roots->submissions($req);
return $res;
}
public function onRun()
{
$config = Configuration::find($this->property('devConfig'));
if (!isset($_SESSION)) {
session_start();
}
$_SESSION['userID'] = $config->User_id;
$_SESSION['userToken'] = \Crypt::encrypt($config->Token);
$_SESSION['courseID'] = $config->Course_id;
$_SESSION['domain'] = $config->Domain;
$_SESSION['lms'] = $config->Lms;
//get the timezone
$roots = new Roots();
$course = $roots->getCourse();
$account_id = $course->account_id;
$account = $roots->getAccount($account_id);
$_SESSION['timezone'] = new \DateTimeZone($account->default_time_zone);
}
private function getSubmissions()
{
if (!isset($_SESSION)) {
session_start();
}
$userId = $_SESSION['userID'];
$roots = new Roots();
$request = new SubmissionsRequest(ActionType::GET, array($userId), false, array(), true, false, true, false);
$submissions = $roots->submissions($request);
return $submissions;
}
public function updateModule()
{
$name = \Input::get('name');
$date = \Input::get('unlock_at');
$unlock_at = new DateTime($date);
$prerequisite_module_ids = \Input::get('prerequisites');
$published = \Input::get('published');
$module_id = \Input::get('module_id');
$module = new Module($name, $unlock_at, $prerequisite_module_ids, $published, null);
//update a module (changing title and published to false)
$req = new ModulesRequest(ActionType::PUT, $module_id, null, false, false, $module, null, false);
$roots = new Roots();
return $roots->modules($req);
}
public function getSubmissions($userId = null)
{
if (is_null($userId)) {
if (!isset($_SESSION)) {
session_start();
}
$userId = $_SESSION['userID'];
}
$roots = new Roots();
$request = new SubmissionsRequest(ActionType::GET, array($userId), false, array(), true, false, true, false);
try {
$submissions = $roots->submissions($request);
return $submissions;
} catch (\GuzzleHttp\Exception\ClientException $e) {
return [];
}
}
public function uploadFileStepThree()
{
$location = \Input::get('location');
$roots = new Roots();
return $roots->uploadFileStepThree($location);
}
public function doBltiHandshake()
{
//first obtain the details of the LTI configuration they chose
$dbHelper = new DbHelper();
$instanceFromDB = LtiConfigurations::find($this->property('ltiInstance'));
$approver = $this->property('approver');
$arr = $this->getApproverOptions();
$approverRole = $arr[$approver];
if (!isset($_SESSION)) {
session_start();
}
$_SESSION['baseUrl'] = Config::get('app.url', 'backend');
$_SESSION['courseID'] = \Input::get('custom_canvas_course_id');
$_SESSION['userID'] = \Input::get('custom_canvas_user_id');
$_SESSION['domain'] = \Input::get('custom_canvas_api_domain');
//TODO: make sure this parameter below works with all other LMSs
$_SESSION['lms'] = \Input::get('tool_consumer_info_product_family_code');
//check to see if user is an Instructor
$rolesStr = \Input::get('roles');
$consumerKey = $instanceFromDB['ConsumerKey'];
$clientId = $instanceFromDB['DeveloperId'];
//Check to see if the lti handshake passes
$context = new Blti($consumerKey, false, false);
if ($context->valid) {
// query DB to see if user has token, if yes, go to LTI.
$userCheck = $dbHelper->getCourseApprover($_SESSION['courseID']);
if (!$userCheck) {
//if no user is found, redirect to canvas permission page
if (stristr($rolesStr, $approverRole)) {
//As per my discussion with Jared, we will use the instructor's token only. This is the token that will be stored in the DB
//and the one that will be used to make all requests. We will NOT store student's tokens.
//TODO: take this redirectUri out into some parameter somewhere...
$redirectUri = "{$_SESSION['baseUrl']}saveUserInfo?lti={$this->property('ltiInstance')}";
$url = "https://{$_SESSION['domain']}/login/oauth2/auth?client_id={$clientId}&response_type=code&redirect_uri={$redirectUri}";
$this->redirect($url);
} else {
echo "A(n) {$approverRole} must authorize this course. Please contact your instructor.";
return;
}
} else {
//set the professor's token
$_SESSION['userToken'] = $userCheck->encrypted_token;
//get the timezone
$roots = new Roots();
$course = $roots->getCourse();
$account_id = $course->account_id;
$account = $roots->getAccount($account_id);
$courseId = $_SESSION['courseID'];
$_SESSION['timezone'] = new \DateTimeZone($account->default_time_zone);
//to maintain the users table synchronized with Canvas, everytime a student comes in we'll check to make sure they're in the DB.
//If they're not, we will pull all the students from Canvas and refresh our users table.
$dbHelper = new DbHelper();
$user = $dbHelper->getUserInCourse($courseId, $_SESSION['userID']);
if (is_null($user)) {
//get all students from Canvas
$roots = new Roots();
$roots->getStudentsInCourse();
}
//Also, every so often (every 12 hrs?) we will check to make sure that students who have dropped the class are deleted from the users_course table
//Failing to do so will make it so that when we request their submissions along with other students' submissions, the entire
// call returns with an Unauthorized error message
$approver = $dbHelper->getCourseApprover($courseId);
$now = Carbon::now();
$updatedDate = $approver->updated_at;
$diff = $updatedDate->diffInHours($now, false);
if ($diff > 24) {
$allStudentsDb = $dbHelper->getUsersInCourseWithRole($_SESSION['courseID'], 'Learner');
$allStudentsFromCanvas = $roots->getStudentsInCourse();
foreach ($allStudentsDb as $dbStudent) {
$filteredItems = array_values(array_filter($allStudentsFromCanvas, function ($elem) use($dbStudent) {
return intval($elem->user_id) === intval($dbStudent->user_id);
}));
if (count($filteredItems) < 1) {
$dbHelper->deleteUserFromRole($courseId, $dbStudent->user_id, 'Learner');
}
}
//update the approver
$approver->updated_at = $now;
$approver->save();
}
}
} else {
echo 'There is a problem. Please notify your instructor';
}
}
