Webservice can register user to a course no matter the course config

Webservice is kind of "admin" $checkTeacherPermission parameter added

BT#14613

Author: jmontoyaa

main/inc/lib/course.lib.php

@@ -736,11 +736,11 @@ public static function get_course_code_from_course_id($id)
      * @author Hugues Peeters
      * @author Roan Embrechts
      *
-     * @param int    $user_id              the id of the user
-     * @param string $courseCode           the course code
-     * @param int    $status               (optional) The user's status in the course
-     * @param int    $userCourseCategoryId
-     * @param   int The user category in which this subscription will be classified
+     * @param int    $user_id    the id of the user
+     * @param string $courseCode the course code
+     * @param int    $status     (optional) The user's status in the course
+     * @param int    $userCourseCategoryId The user category in which this subscription will be classified
+     * @param bool   $checkTeacherPermission
      *
      * @return false|string true if subscription succeeds, boolean false otherwise
      * @assert ('', '') === false
@@ -749,7 +749,8 @@ public static function add_user_to_course(
         $user_id,
         $courseCode,
         $status = STUDENT,
-        $userCourseCategoryId = 0
+        $userCourseCategoryId = 0,
+        $checkTeacherPermission = true
     ) {
         $debug = false;
         $user_table = Database::get_main_table(TABLE_MAIN_USER);
@@ -789,7 +790,7 @@ public static function add_user_to_course(
             return false; // The user has been subscribed to the course.
         }
 
-        if (!api_is_course_admin()) {
+        if ($checkTeacherPermission && !api_is_course_admin()) {
             // Check in advance whether subscription is allowed or not for this course.
             $sql = "SELECT code, visibility FROM $course_table
                     WHERE id = $courseId AND subscribe = '".SUBSCRIBE_NOT_ALLOWED."'";

main/webservices/registration.soap.php

@@ -4653,7 +4653,7 @@ function WSSubscribeUserToCourse($params)
                 if ($debug) {
                     error_log('WSSubscribeUserToCourse courseCode: '.$courseCode);
                 }
-                $result = CourseManager::add_user_to_course($user_id, $courseCode, $status, false);
+                $result = CourseManager::add_user_to_course($user_id, $courseCode, $status, false, false);
                 if ($result) {
                     $resultValue = 1;
                     if ($debug) {
@@ -4767,8 +4767,9 @@ function WSSubscribeUserToCourseSimple($params)
             if ($debug) {
                 error_log('Try to register: user_id= '.$user_id.' to course: '.$course_data['code']);
             }
-            if (!CourseManager::add_user_to_course($user_id, $course_data['code'], $status)) {
-                $result = 'User was not registered possible reasons: User already registered to the course, Course visibility doesnt allow user subscriptions ';
+            if (!CourseManager::add_user_to_course($user_id, $course_data['code'], $status, false, false)) {
+                $result = 'User was not registered possible reasons: User already registered to the course, 
+                           Course visibility doesnt allow user subscriptions ';
                 if ($debug) {
                     error_log($result);
                 }