PHP manager::get_realuser方法代码示例

//.........这里部分代码省略.........
    $returnobject->navitems = array();
    $returnobject->metadata = array();
    $course = $page->course;
    // Query the environment.
    $context = context_course::instance($course->id);
    // Get basic user metadata.
    $returnobject->metadata['userid'] = $user->id;
    $returnobject->metadata['userfullname'] = fullname($user, true);
    $returnobject->metadata['userprofileurl'] = new moodle_url('/user/profile.php', array('id' => $user->id));
    $returnobject->metadata['useravatar'] = $OUTPUT->user_picture($user, array('link' => false, 'visibletoscreenreaders' => false));
    // Build a list of items for a regular user.
    // Query MNet status.
    if ($returnobject->metadata['asmnetuser'] = is_mnet_remote_user($user)) {
        $mnetidprovider = $DB->get_record('mnet_host', array('id' => $user->mnethostid));
        $returnobject->metadata['mnetidprovidername'] = $mnetidprovider->name;
        $returnobject->metadata['mnetidproviderwwwroot'] = $mnetidprovider->wwwroot;
    }
    // Did the user just log in?
    if (isset($SESSION->justloggedin)) {
        // Don't unset this flag as login_info still needs it.
        if (!empty($CFG->displayloginfailures)) {
            // We're already in /user/lib.php, so we don't need to include.
            if ($count = user_count_login_failures($user)) {
                // Get login failures string.
                $a = new stdClass();
                $a->attempts = html_writer::tag('span', $count, array('class' => 'value'));
                $returnobject->metadata['userloginfail'] = get_string('failedloginattempts', '', $a);
            }
        }
    }
    // Links: Dashboard.
    $myhome = new stdClass();
    $myhome->itemtype = 'link';
    $myhome->url = new moodle_url('/my/');
    $myhome->title = get_string('mymoodle', 'admin');
    $myhome->pix = "i/course";
    $returnobject->navitems[] = $myhome;
    // Links: My Profile.
    $myprofile = new stdClass();
    $myprofile->itemtype = 'link';
    $myprofile->url = new moodle_url('/user/profile.php', array('id' => $user->id));
    $myprofile->title = get_string('profile');
    $myprofile->pix = "i/user";
    $returnobject->navitems[] = $myprofile;
    // Links: Role-return or logout link.
    $lastobj = null;
    $buildlogout = true;
    $returnobject->metadata['asotherrole'] = false;
    if (is_role_switched($course->id)) {
        if ($role = $DB->get_record('role', array('id' => $user->access['rsw'][$context->path]))) {
            // Build role-return link instead of logout link.
            $rolereturn = new stdClass();
            $rolereturn->itemtype = 'link';
            $rolereturn->url = new moodle_url('/course/switchrole.php', array('id' => $course->id, 'sesskey' => sesskey(), 'switchrole' => 0, 'returnurl' => $page->url->out_as_local_url(false)));
            $rolereturn->pix = "a/logout";
            $rolereturn->title = get_string('switchrolereturn');
            $lastobj = $rolereturn;
            $returnobject->metadata['asotherrole'] = true;
            $returnobject->metadata['rolename'] = role_get_name($role, $context);
            $buildlogout = false;
        }
    }
    if ($returnobject->metadata['asotheruser'] = \core\session\manager::is_loggedinas()) {
        $realuser = \core\session\manager::get_realuser();
        // Save values for the real user, as $user will be full of data for the
        // user the user is disguised as.
        $returnobject->metadata['realuserid'] = $realuser->id;
        $returnobject->metadata['realuserfullname'] = fullname($realuser, true);
        $returnobject->metadata['realuserprofileurl'] = new moodle_url('/user/profile.php', array('id' => $realuser->id));
        $returnobject->metadata['realuseravatar'] = $OUTPUT->user_picture($realuser, array('link' => false, 'visibletoscreenreaders' => false));
        // Build a user-revert link.
        $userrevert = new stdClass();
        $userrevert->itemtype = 'link';
        $userrevert->url = new moodle_url('/course/loginas.php', array('id' => $course->id, 'sesskey' => sesskey()));
        $userrevert->pix = "a/logout";
        $userrevert->title = get_string('logout');
        $lastobj = $userrevert;
        $buildlogout = false;
    }
    if ($buildlogout) {
        // Build a logout link.
        $logout = new stdClass();
        $logout->itemtype = 'link';
        $logout->url = new moodle_url('/login/logout.php', array('sesskey' => sesskey()));
        $logout->pix = "a/logout";
        $logout->title = get_string('logout');
        $lastobj = $logout;
    }
    // Before we add the last item (usually a logout link), add any
    // custom-defined items.
    $customitems = user_convert_text_to_menu_items($CFG->customusermenuitems, $page);
    foreach ($customitems as $item) {
        $returnobject->navitems[] = $item;
    }
    // Add the last item to the list.
    if (!is_null($lastobj)) {
        $returnobject->navitems[] = $lastobj;
    }
    return $returnobject;
}

 /**
  * Return the standard string that says whether you are logged in (and switched
  * roles/logged in as another user).
  * @param bool $withlinks if false, then don't include any links in the HTML produced.
  * If not set, the default is the nologinlinks option from the theme config.php file,
  * and if that is not set, then links are included.
  * @return string HTML fragment.
  */
 public function login_info($withlinks = null)
 {
     global $USER, $CFG, $DB, $SESSION;
     if (during_initial_install()) {
         return '';
     }
     if (is_null($withlinks)) {
         $withlinks = empty($this->page->layout_options['nologinlinks']);
     }
     $loginpage = (string) $this->page->url === get_login_url();
     $course = $this->page->course;
     if (\core\session\manager::is_loggedinas()) {
         $realuser = \core\session\manager::get_realuser();
         $fullname = fullname($realuser, true);
         if ($withlinks) {
             $loginastitle = get_string('loginas');
             $realuserinfo = " [<a href=\"{$CFG->wwwroot}/course/loginas.php?id={$course->id}&amp;sesskey=" . sesskey() . "\"";
             $realuserinfo .= "title =\"" . $loginastitle . "\">{$fullname}</a>] ";
         } else {
             $realuserinfo = " [{$fullname}] ";
         }
     } else {
         $realuserinfo = '';
     }
     $loginurl = get_login_url();
     if (empty($course->id)) {
         // $course->id is not defined during installation
         return '';
     } else {
         if (isloggedin()) {
             $context = context_course::instance($course->id);
             $fullname = fullname($USER, true);
             // Since Moodle 2.0 this link always goes to the public profile page (not the course profile page)
             if ($withlinks) {
                 $linktitle = get_string('viewprofile');
                 $username = "<a href=\"{$CFG->wwwroot}/user/profile.php?id={$USER->id}\" title=\"{$linktitle}\">{$fullname}</a>";
             } else {
                 $username = $fullname;
             }
             if (is_mnet_remote_user($USER) and $idprovider = $DB->get_record('mnet_host', array('id' => $USER->mnethostid))) {
                 if ($withlinks) {
                     $username .= " from <a href=\"{$idprovider->wwwroot}\">{$idprovider->name}</a>";
                 } else {
                     $username .= " from {$idprovider->name}";
                 }
             }
             if (isguestuser()) {
                 $loggedinas = $realuserinfo . get_string('loggedinasguest');
                 if (!$loginpage && $withlinks) {
                     $loggedinas .= " (<a href=\"{$loginurl}\">" . get_string('login') . '</a>)';
                 }
             } else {
                 if (is_role_switched($course->id)) {
                     // Has switched roles
                     $rolename = '';
                     if ($role = $DB->get_record('role', array('id' => $USER->access['rsw'][$context->path]))) {
                         $rolename = ': ' . role_get_name($role, $context);
                     }
                     $loggedinas = get_string('loggedinas', 'moodle', $username) . $rolename;
                     if ($withlinks) {
                         $url = new moodle_url('/course/switchrole.php', array('id' => $course->id, 'sesskey' => sesskey(), 'switchrole' => 0, 'returnurl' => $this->page->url->out_as_local_url(false)));
                         $loggedinas .= '(' . html_writer::tag('a', get_string('switchrolereturn'), array('href' => $url)) . ')';
                     }
                 } else {
                     $loggedinas = $realuserinfo . get_string('loggedinas', 'moodle', $username);
                     if ($withlinks) {
                         echo "<i class='fa fa-user hide979 mywhite'></i> ";
                         //****************$loggedinas .= " (<a href=\"$CFG->wwwroot/login/logout.php?sesskey=".sesskey()."\">".get_string('logout').'</a>)';
                         $loggedinas .= " <span class=\"line-trans\">|</span><a class=\"logtop\" href=\"{$CFG->wwwroot}/login/logout.php?sesskey=" . sesskey() . "\"> " . get_string('logout') . '</a><span class="line-trans"> |</span>';
                     }
                 }
             }
         } else {
             $loggedinas = get_string('loggedinnot', 'moodle');
             if (!$loginpage && $withlinks) {
                 //****************$loggedinas $loggedinas .= " (<a href=\"$loginurl\">".get_string('login').'</a>)';
                 echo "<i class='fa fa-lock hide979 mywhite'></i> ";
                 $loggedinas .= " | <a href=\"{$loginurl}\">" . get_string('login') . '</a> |';
             }
         }
     }
     $loggedinas = '<div class="logininfo">' . $loggedinas . '</div>';
     if (isset($SESSION->justloggedin)) {
         unset($SESSION->justloggedin);
         if (!empty($CFG->displayloginfailures)) {
             if (!isguestuser()) {
                 if ($count = count_login_failures($CFG->displayloginfailures, $USER->username, $USER->lastlogin)) {
                     $loggedinas .= '&nbsp;<div class="loginfailures">';
                     if (empty($count->accounts)) {
                         $loggedinas .= get_string('failedloginattempts', '', $count);
                     } else {
                         $loggedinas .= get_string('failedloginattemptsall', '', $count);
//.........这里部分代码省略.........

    /**
     * Return the standard string that says whether you are logged in (and switched
     * roles/logged in as another user).
     * @param bool $withlinks if false, then don't include any links in the HTML produced.
     * If not set, the default is the nologinlinks option from the theme config.php file,
     * and if that is not set, then links are included.
     * @return string HTML fragment.
     */
    public function login_info($withlinks = null) {
        global $USER, $CFG, $DB, $SESSION;

        if (during_initial_install()) {
            return '';
        }

        if (is_null($withlinks)) {
            $withlinks = empty($this->page->layout_options['nologinlinks']);
        }

        $course = $this->page->course;
        if (\core\session\manager::is_loggedinas()) {
            $realuser = \core\session\manager::get_realuser();
            $fullname = fullname($realuser, true);
            if ($withlinks) {
                $loginastitle = get_string('loginas');
                $realuserinfo = " [<a href=\"$CFG->wwwroot/course/loginas.php?id=$course->id&amp;sesskey=".sesskey()."\"";
                $realuserinfo .= "title =\"".$loginastitle."\">$fullname</a>] ";
            } else {
                $realuserinfo = " [$fullname] ";
            }
        } else {
            $realuserinfo = '';
        }

        $loginpage = $this->is_login_page();
        $loginurl = get_login_url();

        if (empty($course->id)) {
            // $course->id is not defined during installation
            return '';
        } else if (isloggedin()) {
            $context = context_course::instance($course->id);

            $fullname = fullname($USER, true);
            // Since Moodle 2.0 this link always goes to the public profile page (not the course profile page)
            if ($withlinks) {
                $linktitle = get_string('viewprofile');
                $username = "<a href=\"$CFG->wwwroot/user/profile.php?id=$USER->id\" title=\"$linktitle\">$fullname</a>";
            } else {
                $username = $fullname;
            }
            if (is_mnet_remote_user($USER) and $idprovider = $DB->get_record('mnet_host', array('id'=>$USER->mnethostid))) {
                if ($withlinks) {
                    $username .= " from <a href=\"{$idprovider->wwwroot}\">{$idprovider->name}</a>";
                } else {
                    $username .= " from {$idprovider->name}";
                }
            }
            if (isguestuser()) {
                $loggedinas = $realuserinfo.get_string('loggedinasguest');
                if (!$loginpage && $withlinks) {
                    $loggedinas .= " (<a href=\"$loginurl\">".get_string('login').'</a>)';
                }
            } else if (is_role_switched($course->id)) { // Has switched roles
                $rolename = '';
                if ($role = $DB->get_record('role', array('id'=>$USER->access['rsw'][$context->path]))) {
                    $rolename = ': '.role_get_name($role, $context);
                }
                $loggedinas = get_string('loggedinas', 'moodle', $username).$rolename;
                if ($withlinks) {
                    $url = new moodle_url('/course/switchrole.php', array('id'=>$course->id,'sesskey'=>sesskey(), 'switchrole'=>0, 'returnurl'=>$this->page->url->out_as_local_url(false)));
                    $loggedinas .= ' ('.html_writer::tag('a', get_string('switchrolereturn'), array('href' => $url)).')';
                }
            } else {
                $loggedinas = $realuserinfo.get_string('loggedinas', 'moodle', $username);
                if ($withlinks) {
                    $loggedinas .= " (<a href=\"$CFG->wwwroot/login/logout.php?sesskey=".sesskey()."\">".get_string('logout').'</a>)';
                }
            }
        } else {
            $loggedinas = get_string('loggedinnot', 'moodle');
            if (!$loginpage && $withlinks) {
                $loggedinas .= " (<a href=\"$loginurl\">".get_string('login').'</a>)';
            }
        }

        $loggedinas = '<div class="logininfo">'.$loggedinas.'</div>';

        if (isset($SESSION->justloggedin)) {
            unset($SESSION->justloggedin);
            if (!empty($CFG->displayloginfailures)) {
                if (!isguestuser()) {
                    // Include this file only when required.
                    require_once($CFG->dirroot . '/user/lib.php');
                    if ($count = user_count_login_failures($USER)) {
                        $loggedinas .= '<div class="loginfailures">';
                        $a = new stdClass();
                        $a->attempts = $count;
                        $loggedinas .= get_string('failedloginattempts', '', $a);
                        if (file_exists("$CFG->dirroot/report/log/index.php") and has_capability('report/log:view', context_system::instance())) {
//.........这里部分代码省略.........

        }
    }
}
// Apache log integration. In apache conf file one can use ${MOODULEUSER}n in
// LogFormat to get the current logged in username in moodle.
if ($USER && function_exists('apache_note') && !empty($CFG->apacheloguser) && isset($USER->username)) {
    $apachelog_userid = $USER->id;
    $apachelog_username = clean_filename($USER->username);
    $apachelog_name = '';
    if (isset($USER->firstname)) {
        // We can assume both will be set
        // - even if to empty.
        $apachelog_name = clean_filename($USER->firstname . " " . $USER->lastname);
    }
    if (\core\session\manager::is_loggedinas()) {
        $realuser = \core\session\manager::get_realuser();
        $apachelog_username = clean_filename($realuser->username . " as " . $apachelog_username);
        $apachelog_name = clean_filename($realuser->firstname . " " . $realuser->lastname . " as " . $apachelog_name);
        $apachelog_userid = clean_filename($realuser->id . " as " . $apachelog_userid);
    }
    switch ($CFG->apacheloguser) {
        case 3:
            $logname = $apachelog_username;
            break;
        case 2:
            $logname = $apachelog_name;
            break;
        case 1:
        default:
            $logname = $apachelog_userid;
            break;

/**
 * Returns the $USER object ignoring current login-as session
 * @deprecated since 2.6
 * @return stdClass user object
 */
function session_get_realuser()
{
    debugging('session_get_realuser() is deprecated, use \\core\\session\\manager::get_realuser() instead', DEBUG_DEVELOPER);
    return \core\session\manager::get_realuser();
}

//.........这里部分代码省略.........
        if ($preventredirect) {
            throw new require_login_exception('Maintenance in progress');
        }
        $PAGE->set_context(null);
        print_maintenance_message();
    }
    // Make sure the course itself is not hidden.
    if ($course->id == SITEID) {
        // Frontpage can not be hidden.
    } else {
        if (is_role_switched($course->id)) {
            // When switching roles ignore the hidden flag - user had to be in course to do the switch.
        } else {
            if (!$course->visible and !has_capability('moodle/course:viewhiddencourses', $coursecontext)) {
                // Originally there was also test of parent category visibility, BUT is was very slow in complex queries
                // involving "my courses" now it is also possible to simply hide all courses user is not enrolled in :-).
                if ($preventredirect) {
                    throw new require_login_exception('Course is hidden');
                }
                $PAGE->set_context(null);
                // We need to override the navigation URL as the course won't have been added to the navigation and thus
                // the navigation will mess up when trying to find it.
                navigation_node::override_active_url(new moodle_url('/'));
                notice(get_string('coursehidden'), $CFG->wwwroot . '/');
            }
        }
    }
    // Is the user enrolled?
    if ($course->id == SITEID) {
        // Everybody is enrolled on the frontpage.
    } else {
        if (\core\session\manager::is_loggedinas()) {
            // Make sure the REAL person can access this course first.
            $realuser = \core\session\manager::get_realuser();
            if (!is_enrolled($coursecontext, $realuser->id, '', true) and !is_viewing($coursecontext, $realuser->id) and !is_siteadmin($realuser->id)) {
                if ($preventredirect) {
                    throw new require_login_exception('Invalid course login-as access');
                }
                $PAGE->set_context(null);
                echo $OUTPUT->header();
                notice(get_string('studentnotallowed', '', fullname($USER, true)), $CFG->wwwroot . '/');
            }
        }
        $access = false;
        if (is_role_switched($course->id)) {
            // Ok, user had to be inside this course before the switch.
            $access = true;
        } else {
            if (is_viewing($coursecontext, $USER)) {
                // Ok, no need to mess with enrol.
                $access = true;
            } else {
                if (isset($USER->enrol['enrolled'][$course->id])) {
                    if ($USER->enrol['enrolled'][$course->id] > time()) {
                        $access = true;
                        if (isset($USER->enrol['tempguest'][$course->id])) {
                            unset($USER->enrol['tempguest'][$course->id]);
                            remove_temp_course_roles($coursecontext);
                        }
                    } else {
                        // Expired.
                        unset($USER->enrol['enrolled'][$course->id]);
                    }
                }
                if (isset($USER->enrol['tempguest'][$course->id])) {
                    if ($USER->enrol['tempguest'][$course->id] == 0) {

 /**
  * Initialise the settings navigation based on the current context
  *
  * This function initialises the settings navigation tree for a given context
  * by calling supporting functions to generate major parts of the tree.
  *
  */
 public function initialise()
 {
     global $DB, $SESSION, $SITE;
     if (during_initial_install()) {
         return false;
     } else {
         if ($this->initialised) {
             return true;
         }
     }
     $this->id = 'settingsnav';
     $this->context = $this->page->context;
     $context = $this->context;
     if ($context->contextlevel == CONTEXT_BLOCK) {
         $this->load_block_settings();
         $context = $context->get_parent_context();
     }
     switch ($context->contextlevel) {
         case CONTEXT_SYSTEM:
             if ($this->page->url->compare(new moodle_url('/admin/settings.php', array('section' => 'frontpagesettings')))) {
                 $this->load_front_page_settings($context->id == $this->context->id);
             }
             break;
         case CONTEXT_COURSECAT:
             $this->load_category_settings();
             break;
         case CONTEXT_COURSE:
             if ($this->page->course->id != $SITE->id) {
                 $this->load_course_settings($context->id == $this->context->id);
             } else {
                 $this->load_front_page_settings($context->id == $this->context->id);
             }
             break;
         case CONTEXT_MODULE:
             $this->load_module_settings();
             $this->load_course_settings();
             break;
         case CONTEXT_USER:
             if ($this->page->course->id != $SITE->id) {
                 $this->load_course_settings();
             }
             break;
     }
     $usersettings = $this->load_user_settings($this->page->course->id);
     $adminsettings = false;
     if (isloggedin() && !isguestuser() && (!isset($SESSION->load_navigation_admin) || $SESSION->load_navigation_admin)) {
         $isadminpage = $this->is_admin_tree_needed();
         if (has_capability('moodle/site:config', context_system::instance())) {
             // Make sure this works even if config capability changes on the fly
             // and also make it fast for admin right after login.
             $SESSION->load_navigation_admin = 1;
             if ($isadminpage) {
                 $adminsettings = $this->load_administration_settings();
             }
         } else {
             if (!isset($SESSION->load_navigation_admin)) {
                 $adminsettings = $this->load_administration_settings();
                 $SESSION->load_navigation_admin = (int) ($adminsettings->children->count() > 0);
             } else {
                 if ($SESSION->load_navigation_admin) {
                     if ($isadminpage) {
                         $adminsettings = $this->load_administration_settings();
                     }
                 }
             }
         }
         // Print empty navigation node, if needed.
         if ($SESSION->load_navigation_admin && !$isadminpage) {
             if ($adminsettings) {
                 // Do not print settings tree on pages that do not need it, this helps with performance.
                 $adminsettings->remove();
                 $adminsettings = false;
             }
             $siteadminnode = $this->add(get_string('administrationsite'), new moodle_url('/admin'), self::TYPE_SITE_ADMIN, null, 'siteadministration');
             $siteadminnode->id = 'expandable_branch_' . $siteadminnode->type . '_' . clean_param($siteadminnode->key, PARAM_ALPHANUMEXT);
             $this->page->requires->data_for_js('siteadminexpansion', $siteadminnode);
         }
     }
     if ($context->contextlevel == CONTEXT_SYSTEM && $adminsettings) {
         $adminsettings->force_open();
     } else {
         if ($context->contextlevel == CONTEXT_USER && $usersettings) {
             $usersettings->force_open();
         }
     }
     // Check if the user is currently logged in as another user
     if (\core\session\manager::is_loggedinas()) {
         // Get the actual user, we need this so we can display an informative return link
         $realuser = \core\session\manager::get_realuser();
         // Add the informative return to original user link
         $url = new moodle_url('/course/loginas.php', array('id' => $this->page->course->id, 'return' => 1, 'sesskey' => sesskey()));
         $this->add(get_string('returntooriginaluser', 'moodle', fullname($realuser, true)), $url, self::TYPE_SETTING, null, null, new pix_icon('t/left', ''));
     }
//.........这里部分代码省略.........

 /**
  * Outputs the user menu.
  * @return custom_menu object
  */
 public function custom_menu_user()
 {
     // Die if executed during install.
     if (during_initial_install()) {
         return false;
     }
     global $USER, $CFG, $DB;
     $loginurl = get_login_url();
     $usermenu = html_writer::start_tag('ul', array('class' => 'nav'));
     $usermenu .= html_writer::start_tag('li', array('class' => 'dropdown'));
     if (!isloggedin()) {
         if ($this->page->pagelayout != 'login') {
             $userpic = '<em><i class="fa fa-sign-in"></i>' . get_string('login') . '</em>';
             $usermenu .= html_writer::link($loginurl, $userpic, array('class' => 'loginurl'));
         }
     } else {
         if (isguestuser()) {
             $userurl = new moodle_url('#');
             $userpic = parent::user_picture($USER, array('link' => false));
             $caret = '<i class="fa fa-caret-right"></i>';
             $userclass = array('class' => 'dropdown-toggle', 'data-toggle' => 'dropdown');
             $usermenu .= html_writer::link($userurl, $userpic . get_string('guest') . $caret, $userclass);
             // Render direct logout link.
             $usermenu .= html_writer::start_tag('ul', array('class' => 'dropdown-menu pull-right'));
             $branchlabel = '<em><i class="fa fa-sign-out"></i>' . get_string('logout') . '</em>';
             $branchurl = new moodle_url('/login/logout.php');
             $branchurl->param('sesskey', sesskey());
             $usermenu .= html_writer::tag('li', html_writer::link($branchurl, $branchlabel));
             // Render Help Link.
             $usermenu .= $this->theme_essential_render_helplink();
             $usermenu .= html_writer::end_tag('ul');
         } else {
             $course = $this->page->course;
             $context = context_course::instance($course->id);
             // Output Profile link.
             $userurl = new moodle_url('#');
             $userpic = parent::user_picture($USER, array('link' => false));
             $caret = '<i class="fa fa-caret-right"></i>';
             $userclass = array('class' => 'dropdown-toggle', 'data-toggle' => 'dropdown');
             if (!empty($USER->alternatename)) {
                 $usermenu .= html_writer::link($userurl, $userpic . $USER->alternatename . $caret, $userclass);
             } else {
                 $usermenu .= html_writer::link($userurl, $userpic . $USER->firstname . $caret, $userclass);
             }
             // Start dropdown menu items.
             $usermenu .= html_writer::start_tag('ul', array('class' => 'dropdown-menu pull-right'));
             if (\core\session\manager::is_loggedinas()) {
                 $realuser = \core\session\manager::get_realuser();
                 $branchlabel = '<em><i class="fa fa-key"></i>' . fullname($realuser, true) . get_string('loggedinas', 'theme_essential') . fullname($USER, true) . '</em>';
             } else {
                 $branchlabel = '<em><i class="fa fa-user"></i>' . fullname($USER, true) . '</em>';
             }
             $branchurl = new moodle_url('/user/profile.php', array('id' => $USER->id));
             $usermenu .= html_writer::tag('li', html_writer::link($branchurl, $branchlabel));
             if (is_mnet_remote_user($USER) && ($idprovider = $DB->get_record('mnet_host', array('id' => $USER->mnethostid)))) {
                 $branchlabel = '<em><i class="fa fa-users"></i>' . get_string('loggedinfrom', 'theme_essential') . $idprovider->name . '</em>';
                 $branchurl = new moodle_url($idprovider->wwwroot);
                 $usermenu .= html_writer::tag('li', html_writer::link($branchurl, $branchlabel));
             }
             if (is_role_switched($course->id)) {
                 // Has switched roles.
                 $branchlabel = '<em><i class="fa fa-users"></i>' . get_string('switchrolereturn') . '</em>';
                 $branchurl = new moodle_url('/course/switchrole.php', array('id' => $course->id, 'sesskey' => sesskey(), 'switchrole' => 0, 'returnurl' => $this->page->url->out_as_local_url(false)));
                 $usermenu .= html_writer::tag('li', html_writer::link($branchurl, $branchlabel));
             }
             // Add preferences submenu.
             $usermenu .= $this->theme_essential_render_preferences($context);
             $usermenu .= html_writer::empty_tag('hr', array('class' => 'sep'));
             // Output Calendar link if user is allowed to edit own calendar entries.
             if (has_capability('moodle/calendar:manageownentries', $context)) {
                 $branchlabel = '<em><i class="fa fa-calendar"></i>' . get_string('pluginname', 'block_calendar_month') . '</em>';
                 $branchurl = new moodle_url('/calendar/view.php');
                 $usermenu .= html_writer::tag('li', html_writer::link($branchurl, $branchlabel));
             }
             // Check if messaging is enabled.
             if (!empty($CFG->messaging)) {
                 $branchlabel = '<em><i class="fa fa-envelope"></i>' . get_string('pluginname', 'block_messages') . '</em>';
                 $branchurl = new moodle_url('/message/index.php');
                 $usermenu .= html_writer::tag('li', html_writer::link($branchurl, $branchlabel));
             }
             // Check if user is allowed to manage files.
             if (has_capability('moodle/user:manageownfiles', $context)) {
                 $branchlabel = '<em><i class="fa fa-file"></i>' . get_string('privatefiles', 'block_private_files') . '</em>';
                 $branchurl = new moodle_url('/user/files.php');
                 $usermenu .= html_writer::tag('li', html_writer::link($branchurl, $branchlabel));
             }
             // Check if user is allowed to view discussions.
             if (has_capability('mod/forum:viewdiscussion', $context)) {
                 $branchlabel = '<em><i class="fa fa-list-alt"></i>' . get_string('forumposts', 'mod_forum') . '</em>';
                 $branchurl = new moodle_url('/mod/forum/user.php', array('id' => $USER->id));
                 $usermenu .= html_writer::tag('li', html_writer::link($branchurl, $branchlabel));
                 $branchlabel = '<em><i class="fa fa-list"></i>' . get_string('discussions', 'mod_forum') . '</em>';
                 $branchurl = new moodle_url('/mod/forum/user.php', array('id' => $USER->id, 'mode' => 'discussions'));
                 $usermenu .= html_writer::tag('li', html_writer::link($branchurl, $branchlabel));
                 $usermenu .= html_writer::empty_tag('hr', array('class' => 'sep'));
             }
//.........这里部分代码省略.........

 public function test_get_realuser()
 {
     $this->resetAfterTest();
     $user1 = $this->getDataGenerator()->create_user();
     $user2 = $this->getDataGenerator()->create_user();
     $this->setUser($user1);
     $normal = \core\session\manager::get_realuser();
     $this->assertSame($GLOBALS['USER'], $normal);
     \core\session\manager::loginas($user2->id, context_system::instance());
     $real = \core\session\manager::get_realuser();
     unset($real->password);
     unset($real->description);
     unset($real->sesskey);
     unset($user1->password);
     unset($user1->description);
     unset($user1->sesskey);
     $this->assertEquals($real, $user1);
     $this->assertSame($_SESSION['REALUSER'], $real);
 }

//.........这里部分代码省略.........
            }
        } else {
            $courselist = "";
            $userpicture = new user_picture($USER);
            $userpicture->link = false;
            $userpicture->alttext = false;
            $userpicture->size = 100;
            $picture = $this->render($userpicture);
            list($favorited, $notfavorited) = $courseservice->my_courses_split_by_favorites();
            // Create courses array with favorites first.
            $mycourses = $favorited + $notfavorited;
            $courselist .= '<section id="fixy-my-courses"><div class="clearfix"><h2>' . get_string('courses') . '</h2>';
            $courselist .= '<div id="fixy-visible-courses">';
            // Default text when no courses.
            if (!$mycourses) {
                $courselist .= "<p>" . get_string('coursefixydefaulttext', 'theme_snap') . "</p>";
            }
            // Visible / hidden course vars.
            $visiblecoursecount = 0;
            // How many courses are in the hidden section (hidden and not favorited).
            $hiddencoursecount = 0;
            $hiddencourselist = '';
            // How many courses are actually hidden.
            $actualhiddencount = 0;
            foreach ($mycourses as $course) {
                $ccard = new course_card($course->id);
                $coursecard = $this->render($ccard);
                // If course is not visible.
                if (!$course->visible) {
                    $actualhiddencount++;
                    // Only add to list of hidden courses if not favorited.
                    if (!isset($favorited[$course->id])) {
                        $hiddencoursecount++;
                        $hiddencourselist .= $coursecard;
                    } else {
                        // OK, this is hidden but it's favorited, so technically visible.
                        $visiblecoursecount++;
                        $courselist .= $coursecard;
                    }
                } else {
                    $visiblecoursecount++;
                    $courselist .= $coursecard;
                }
            }
            $courselist .= '</div>';
            $courselist .= $this->browse_all_courses_button();
            $courselist .= '</div>';
            if ($actualhiddencount && $visiblecoursecount) {
                // Output hidden courses toggle when there are visible courses.
                $togglevisstate = !empty($hiddencourselist) ? ' state-visible' : '';
                $hiddencourses = '<div class="clearfix"><h2 class="header-hidden-courses' . $togglevisstate . '"><a id="js-toggle-hidden-courses" href="#">' . get_string('hiddencoursestoggle', 'theme_snap', $hiddencoursecount) . '</a></h2>';
                $hiddencourses .= '<div id="fixy-hidden-courses" class="clearfix" tabindex="-1">' . $hiddencourselist . '</div>';
                $hiddencourses .= '</div>';
                $courselist .= $hiddencourses;
            } else {
                if (!$visiblecoursecount && $hiddencoursecount) {
                    $hiddencourses = '<div id="fixy-hidden-courses" class="clearfix state-visible">' . $hiddencourselist . '</div>';
                    $courselist .= $hiddencourses;
                }
            }
            $courselist .= '</section>';
            $menu = get_string('menu', 'theme_snap');
            $badge = $this->render_badge_count();
            $linkcontent = $menu . $picture . $badge;
            $attributes = array('aria-haspopup' => 'true', 'class' => 'js-personal-menu-trigger snap-my-courses-menu', 'id' => 'fixy-trigger', 'aria-controls' => 'primary-nav');
            $output .= html_writer::link('#', $linkcontent, $attributes);
            $close = get_string('close', 'theme_snap');
            $viewyourprofile = get_string('viewyourprofile', 'theme_snap');
            $realuserinfo = '';
            if (\core\session\manager::is_loggedinas()) {
                $realuser = \core\session\manager::get_realuser();
                $via = get_string('via', 'theme_snap');
                $fullname = fullname($realuser, true);
                $realuserinfo = html_writer::span($via . ' ' . html_writer::span($fullname, 'real-user-name'), 'real-user-info');
            }
            $output .= '<nav id="primary-nav" class="fixy toggle-details" tabindex="-1">
            <div class="fixy-inner">
            <div class="fixy-header">
            <a id="fixy-close" class="js-personal-menu-trigger pull-right snap-action-icon" href="#">
                <i class="icon icon-close"></i><small>' . $close . '</small>
            </a>

            <div id="fixy-user">' . $picture . '
            <div id="fixy-user-details">
                <a title="' . s($viewyourprofile) . '" href="' . s($CFG->wwwroot) . '/user/profile.php" >' . '<span class="h1" role="heading" aria-level="1">' . format_string(fullname($USER)) . '</span>
                </a> ' . $realuserinfo . '
                <a id="fixy-logout" href="' . s($CFG->wwwroot) . '/login/logout.php?sesskey=' . sesskey() . '">' . $logout . '</a>
            </div>
            </div>
            </div>



        <div id="fixy-content">' . $courselist . $this->render_callstoaction() . '
        </div><!-- end fixy-content -->
        </div><!-- end fixy-inner -->
        </nav><!-- end primary nav -->';
        }
        return $output;
    }

 /**
     Function to build the user's menu for the top navigation bar
     @param bool $withlinks - not sure if we want this
     @return string HTML fragment
     **/
 public function user_menu($user = NULL, $withlinks = NULL)
 {
     global $USER, $CFG, $DB, $SESSION, $PAGE;
     // if we are during install return an empty string
     if (during_initial_install()) {
         return '';
     }
     $course = $this->page->course;
     // at certain times - i.e. installation course id will be empty or null
     if (empty($course->id)) {
         return '';
     }
     // this is the login page so return nothing
     $loginurl = get_login_url();
     if ((string) $this->page->url === $loginurl) {
         return '';
     }
     // user not logged in so return login link
     if (!isloggedin()) {
         return "<li><a href=\"{$loginurl}\">" . get_string('login') . '</a></li>';
     }
     // begin building the user's display name
     $user_string = "";
     // check if the user is logged in as someone else
     #if (session_is_loggedinas()) {
     #    $realuser = session_get_realuser();
     if (\core\session\manager::is_loggedinas()) {
         $realuser = \core\session\manager::get_realuser();
         $user_string = fullname($realuser, true) . " pretending to be ";
     }
     $user_string .= fullname($USER, true);
     $role_switched = false;
     if (is_role_switched($course->id)) {
         // Has switched roles
         $context = context_course::instance($course->id);
         $role_switched = true;
         $rolename = '';
         if ($role = $DB->get_record('role', array('id' => $USER->access['rsw'][$context->path]))) {
             $rolename = ': ' . role_get_name($role, $context);
         }
         $user_string .= $rolename;
     }
     $user_picture = new user_picture($USER);
     $userimgsrc = $user_picture->get_url($PAGE);
     $user_menu = array("<li class='dropdown'>");
     $user_menu[] = "<a class='dropdown-toggle' data-toggle='dropdown' href='#' style='min-height: 50px'>";
     $user_menu[] = "<img class='nav-avatar' src='" . $userimgsrc . "'>";
     $user_menu[] = "<span class='hidden-xs'>" . $user_string . "</span>";
     $user_menu[] = "</a>";
     $user_menu[] = "<ul class='dropdown-menu dropdown-menu-right'>";
     if ($role_switched) {
         $url = new moodle_url('/course/switchrole.php', array('id' => $course->id, 'sesskey' => sesskey(), 'switchrole' => 0, 'returnurl' => $this->page->url->out_as_local_url(false)));
         $user_menu[] = "<li><a href='" . $url . "'>" . get_string('switchrolereturn') . "</a></li>";
     }
     $user_menu[] = "<li><a href='" . $CFG->wwwroot . "/user/profile.php?id=" . $USER->id . "'>My Profile</a></li>";
     $user_menu[] = "<li class='menu-item-resources'><a href='/'>My Modules</a></li>";
     $user_menu[] = "<li id='student-email-link' style='display: none'><a href='http://studentmail.falmouth.ac.uk/'>My Email</a></li>";
     $user_menu[] = "<li id='staff-email-link' style='display: none'><a href='http://mailspace.falmouth.ac.uk/'>My Email</a></li>";
     $user_menu[] = "<li><a href='http://mytimetable.falmouth.ac.uk/'>My Timetable</a></li>";
     $user_menu[] = "<li class='divider'></li>";
     $user_menu[] = "<li><a href='" . $CFG->wwwroot . "/login/logout.php?sesskey=" . sesskey() . "'>" . get_string('logout') . '</a></li>';
     $user_menu[] = "</ul></li>";
     return implode("", $user_menu);
 }

/**
 * Course section deletion, using an adhoc task for deletion of the modules it contains.
 * 1. Schedule all modules within the section for adhoc removal.
 * 2. Move all modules to course section 0.
 * 3. Delete the resulting empty section.
 *
 * @param \stdClass $section the section to schedule for deletion.
 * @param bool $forcedeleteifnotempty whether to force section deletion if it contains modules.
 * @return bool true if the section was scheduled for deletion, false otherwise.
 */
function course_delete_section_async($section, $forcedeleteifnotempty = true)
{
    global $DB, $USER;
    // Objects only, and only valid ones.
    if (!is_object($section) || empty($section->id)) {
        return false;
    }
    // Does the object currently exist in the DB for removal (check for stale objects).
    $section = $DB->get_record('course_sections', array('id' => $section->id));
    if (!$section || !$section->section) {
        // No section exists, or the section is 0. Can't proceed.
        return false;
    }
    // Check whether the section can be removed.
    if (!$forcedeleteifnotempty && (!empty($section->sequence) || !empty($section->summary))) {
        return false;
    }
    $format = course_get_format($section->course);
    $sectionname = $format->get_section_name($section);
    // Flag those modules having no existing deletion flag. Some modules may have been scheduled for deletion manually, and we don't
    // want to create additional adhoc deletion tasks for these. Moving them to section 0 will suffice.
    $affectedmods = $DB->get_records_select('course_modules', 'course = ? AND section = ? AND deletioninprogress <> ?', [$section->course, $section->id, 1], '', 'id');
    $DB->set_field('course_modules', 'deletioninprogress', '1', ['course' => $section->course, 'section' => $section->id]);
    // Move all modules to section 0.
    $modules = $DB->get_records('course_modules', ['section' => $section->id], '');
    $sectionzero = $DB->get_record('course_sections', ['course' => $section->course, 'section' => '0']);
    foreach ($modules as $mod) {
        moveto_module($mod, $sectionzero);
    }
    // Create and queue an adhoc task for the deletion of the modules.
    $removaltask = new \core_course\task\course_delete_modules();
    $data = array('cms' => $affectedmods, 'userid' => $USER->id, 'realuserid' => \core\session\manager::get_realuser()->id);
    $removaltask->set_custom_data($data);
    \core\task\manager::queue_adhoc_task($removaltask);
    // Delete the now empty section, passing in only the section number, which forces the function to fetch a new object.
    // The refresh is needed because the section->sequence is now stale.
    $result = $format->delete_section($section->section, $forcedeleteifnotempty);
    // Trigger an event for course section deletion.
    if ($result) {
        $context = \context_course::instance($section->course);
        $event = \core\event\course_section_deleted::create(array('objectid' => $section->id, 'courseid' => $section->course, 'context' => $context, 'other' => array('sectionnum' => $section->section, 'sectionname' => $sectionname)));
        $event->add_record_snapshot('course_sections', $section);
        $event->trigger();
    }
    rebuild_course_cache($section->course, true);
    return $result;
}

//.........这里部分代码省略.........
                 if (empty($CFG->forcelogin)) {
                     $help = get_string('helpwithloginandguest', 'theme_snap');
                 } else {
                     $help = get_string('helpwithlogin', 'theme_snap');
                 }
                 $helpstr = "<p class='text-center'><a href='" . s($CFG->wwwroot) . "/login/index.php'>{$help}</a></p>";
             }
         }
         echo $this->print_login_button();
         echo "<form class=fixy action='{$CFG->wwwroot}/login/'  method='post' id='login'>\n        <a id='fixy-close' class='pull-right snap-action-icon' href='#'>\n            <i class='icon icon-office-52'></i><small>{$cancel}</small>\n        </a>\n            <div class=fixy-inner>\n            <legend>{$loginform}</legend>\n            <label for='username'>{$username}</label>\n            <input autocapitalize='off' type='text' name='username' id='username' placeholder='" . s($username) . "'>\n            <label for='password'>{$password}</label>\n            <input type='password' name='password' id='password' placeholder='" . s($password) . "'>\n            <br>\n            <input type='submit' id='loginbtn' value='" . s($login) . "'>\n            {$helpstr}\n            </div>\n        </form>";
     } else {
         $courselist = "";
         $userpicture = new user_picture($USER);
         $userpicture->link = false;
         $userpicture->alttext = false;
         $userpicture->size = 100;
         $picture = $this->render($userpicture);
         $mycourses = enrol_get_my_courses(null, 'visible DESC, fullname ASC, id DESC');
         $courselist .= "<section id='fixy-my-courses'><div class='clearfix'><h2>" . get_string('courses') . "</h2>";
         foreach ($mycourses as $c) {
             $pubstatus = "";
             if (!$c->visible) {
                 $notpublished = get_string('notpublished', 'theme_snap');
                 $pubstatus = "<small class='published-status'>" . $notpublished . "</small>";
             }
             $bgcolor = local::get_course_color($c->id);
             $courseimagecss = "background-color: #{$bgcolor};";
             $bgimage = local::course_coverimage_url($c->id);
             if (!empty($bgimage)) {
                 $courseimagecss .= "background-image: url({$bgimage});";
             }
             $dynamicinfo = '<div data-courseid="' . $c->id . '" class=dynamicinfo></div>';
             $teachers = '';
             $courseteachers = '';
             $clist = new course_in_list($c);
             $teachers = $clist->get_course_contacts();
             if (!empty($teachers)) {
                 $courseteachers = "<div class='sr-only'>" . get_string('coursecontacts', 'theme_snap') . "</div>";
                 // Get all teacher user records in one go.
                 $teacherids = array();
                 foreach ($teachers as $teacher) {
                     $teacherids[] = $teacher['user']->id;
                 }
                 $teacherusers = $DB->get_records_list('user', 'id', $teacherids);
                 foreach ($teachers as $teacher) {
                     if (!isset($teacherusers[$teacher['user']->id])) {
                         continue;
                     }
                     $teacheruser = $teacherusers[$teacher['user']->id];
                     $userpicture = new user_picture($teacheruser);
                     $userpicture->link = false;
                     $userpicture->size = 100;
                     $teacherpicture = $this->render($userpicture);
                     $courseteachers .= $teacherpicture;
                 }
             }
             $clink = '<div data-href="' . $CFG->wwwroot . '/course/view.php?id=' . $c->id . '" class="courseinfo" style="' . $courseimagecss . '">
                 <div class="courseinfo-body"><h3><a href="' . $CFG->wwwroot . '/course/view.php?id=' . $c->id . '">' . format_string($c->fullname) . '</a></h3>' . $dynamicinfo . $courseteachers . $pubstatus . '</div></div>';
             $courselist .= $clink;
         }
         $courselist .= "</div>";
         $courselist .= '<div class="row fixy-browse-search-courses"><br>';
         if (has_capability('moodle/site:config', context_system::instance())) {
             $courserenderer = $PAGE->get_renderer('core', 'course');
             $courselist .= '<div class="col-md-6">';
             $courselist .= $courserenderer->course_search_form(null, 'fixy');
             $courselist .= '</div>';
         }
         $courselist .= '<div class="col-md-6">';
         $courselist .= $this->print_view_all_courses();
         $courselist .= '</div>';
         $courselist .= '</div></section>';
         // Close row.
         $menu = get_string('menu', 'theme_snap');
         echo '<a href="#primary-nav" aria-haspopup="true" class="fixy-trigger" id="js-personal-menu-trigger" ' . 'aria-controls="primary-nav" title="' . get_string('sitenavigation', 'theme_snap') . '" data-toggle="tooltip" data-placement="bottom">' . $menu . $picture . $this->render_badge_count() . '</a>';
         $close = get_string('close', 'theme_snap');
         $viewyourprofile = get_string('viewyourprofile', 'theme_snap');
         $realuserinfo = '';
         if (\core\session\manager::is_loggedinas()) {
             $realuser = \core\session\manager::get_realuser();
             $via = get_string('via', 'theme_snap');
             $fullname = fullname($realuser, true);
             $realuserinfo = html_writer::span($via . ' ' . html_writer::span($fullname, 'real-user-name'), 'real-user-info');
         }
         echo '<nav id="primary-nav" class="fixy toggle-details" tabindex="0">
     <a id="fixy-close" class="pull-right snap-action-icon" href="#">
         <i class="icon icon-office-52"></i><small>' . $close . '</small>
     </a>
     <div class=fixy-inner>
     <h1 id="fixy-profile-link">
         <a title="' . s($viewyourprofile) . '" href="' . s($CFG->wwwroot) . '/user/profile.php" >' . $picture . '<span id="fixy-username">' . format_string(fullname($USER)) . '</span>
         </a>
     </h1>' . $realuserinfo . $courselist . $this->render_callstoaction() . '
     <div class="fixy-logout-footer clearfix text-center">
         <a class="btn btn-default logout" href="' . s($CFG->wwwroot) . '/login/logout.php?sesskey=' . sesskey() . '">' . $logout . '</a>
     </div>
     </div><!-- end fixy-inner -->
     </nav><!-- end primary nav -->';
     }
 }

/**
 * this function used checked logged in user having costcenter privileges or not
 *
 * @package custom
 * @method require_costcenter_login
 * @param int $courseodir (holds the course id)
 * @return int
 */
function require_costcenter_login($courseorid) {
    global $CFG, $SESSION, $USER, $PAGE, $SITE, $DB, $OUTPUT, $COSTCENTER;

    if (!empty($courseorid)) {
        if (is_object($courseorid)) {
            $course = $courseorid;
        } else if ($courseorid == SITEID) {
            $course = clone($SITE);
        } else {
            $course = $DB->get_record('course', array('id' => $courseorid), '*', MUST_EXIST);
        }
        $coursecontext = context_course::instance($course->id, MUST_EXIST);
        if ($COSTCENTER) {
            if (!in_array($course->id, $COSTCENTER->courses))
                throw new coding_exception('course  is not belongs to your costcenter, Dont have permission to access');

            else if (\core\session\manager::is_loggedinas()) {
                // Make sure the REAL person can access this course first.
                $realuser = \core\session\manager::get_realuser();
                if (!is_enrolled($coursecontext, $realuser->id, '', true) and ! is_viewing($coursecontext, $realuser->id) and ! is_siteadmin($realuser->id)) {
                    if ($preventredirect) {
                        throw new require_login_exception('Invalid course login-as access');
                    }
                    echo $OUTPUT->header();
                    notice(get_string('studentnotallowed', '', fullname($USER, true)), $CFG->wwwroot . '/');
                }
            }
            //    else if(! in_array($course->id,$COSTCENTER->enroledcourses)){
            // throw new coding_exception('Dont have permission to access'); 
            //  }
            else {

                return true;
            }
        }
    }
    return true;
}

 /**
  * Return the standard string that says whether you are logged in (and switched
  * roles/logged in as another user).
  * @param bool $withlinks if false, then don't include any links in the HTML produced.
  * If not set, the default is the nologinlinks option from the theme config.php file,
  * and if that is not set, then links are included.
  * @return string HTML fragment.
  */
 public function login_info($withlinks = null, $asmenu = false)
 {
     global $USER, $CFG, $DB, $SESSION;
     if (during_initial_install()) {
         return '';
     }
     if (is_null($withlinks)) {
         $withlinks = empty($this->page->layout_options['nologinlinks']);
     }
     $loginpage = (string) $this->page->url === get_login_url();
     $course = $this->page->course;
     if (\core\session\manager::is_loggedinas()) {
         $realuser = \core\session\manager::get_realuser();
         $fullname = fullname($realuser, true);
         if ($withlinks) {
             $loginastitle = get_string('loginas');
             $realuserinfo = " <small>[</small><a href=\"{$CFG->wwwroot}/course/loginas.php?id={$course->id}&amp;sesskey=" . sesskey() . "\"";
             $realuserinfo .= "title =\"" . $loginastitle . "\">{$fullname}</a> <small>]</small> ";
         } else {
             $realuserinfo = " <small>[</small> {$fullname} <small>]</small> ";
         }
     } else {
         $realuserinfo = '';
     }
     $loginurl = get_login_url();
     $loggedinas = '';
     if (empty($course->id)) {
         // The $course->id is not defined during installation.
         return '';
     } else {
         if (isloggedin()) {
             $context = context_course::instance($course->id);
             $fullname = fullname($USER, true);
             $linktitle = get_string('viewprofile');
             $userpicture = '';
             if (!empty($USER->id)) {
                 $userpicture = $this->user_picture($USER, array('size' => 35, 'link' => false, 'class' => 'nav_userpicture'));
             }
             $username = "<a href=\"{$CFG->wwwroot}/user/profile.php?id={$USER->id}\" " . "title=\"{$linktitle}\" class='userloginprofile'>{$userpicture}{$fullname}</a>";
             if (is_mnet_remote_user($USER) and $idprovider = $DB->get_record('mnet_host', array('id' => $USER->mnethostid))) {
                 $username .= " from <a href=\"{$idprovider->wwwroot}\">{$idprovider->name}</a>";
             }
             $loggedinas = $username;
             if (isguestuser()) {
                 $loggedinas = $realuserinfo . get_string('loggedinasguest');
                 if (!$loginpage) {
                     $loggedinas .= " <small>(</small> <a href=\"{$loginurl}\">" . get_string('login') . '</a> <small>)</small>';
                 }
             } else {
                 if (is_role_switched($course->id)) {
                     // Has switched roles.
                     $rolename = '';
                     if ($role = $DB->get_record('role', array('id' => $USER->access['rsw'][$context->path]))) {
                         $rolename = '<span class="role-name">: ' . role_get_name($role, $context) . '</span>';
                     }
                     $loggedinas .= $rolename;
                     $url = new moodle_url('/course/switchrole.php', array('id' => $course->id, 'sesskey' => sesskey(), 'switchrole' => 0, 'returnurl' => $this->page->url->out_as_local_url(false)));
                     $loggedinas .= html_writer::tag('a', get_string('switchrolereturn'), array('href' => $url));
                 } else {
                     $loggedinas .= " <small>(</small> <a href=\"{$CFG->wwwroot}/login/logout.php?sesskey=" . sesskey() . "\">" . get_string('logout') . '</a> <small>)</small>';
                 }
             }
         } else {
             if (!$loginpage) {
                 $loggedinas = " <small>(</small> <a href=\"{$loginurl}\">" . get_string('login') . '</a> <small>)</small>';
             }
         }
     }
     $loggedinas = '<div class="logininfo">' . $loggedinas . '</div>';
     if (isset($SESSION->justloggedin)) {
         unset($SESSION->justloggedin);
         if (!empty($CFG->displayloginfailures)) {
             if (!isguestuser()) {
                 if ($count = count_login_failures($CFG->displayloginfailures, $USER->username, $USER->lastlogin)) {
                     $loggedinas .= '&nbsp;<div class="loginfailures">';
                     if (empty($count->accounts)) {
                         $loggedinas .= get_string('failedloginattempts', '', $count);
                     } else {
                         $loggedinas .= get_string('failedloginattemptsall', '', $count);
                     }
                     if (file_exists("{$CFG->dirroot}/report/log/index.php") and has_capability('report/log:view', context_system::instance())) {
                         $loggedinas .= ' <a href="' . $CFG->wwwroot . '/report/log/index.php' . '?chooselog=1&amp;id=1&amp;modid=site_errors">' . get_string('logs') . '</a>';
                     }
                     $loggedinas .= '</div>';
                 }
             }
         }
     }
     return $loggedinas;
 }