PHP get_login_url函数代码示例

 function get_content()
 {
     global $USER, $CFG, $SESSION;
     $wwwroot = '';
     $signup = '';
     if ($this->content !== NULL) {
         return $this->content;
     }
     if (empty($CFG->loginhttps)) {
         $wwwroot = $CFG->wwwroot;
     } else {
         // This actually is not so secure ;-), 'cause we're
         // in unencrypted connection...
         $wwwroot = str_replace("http://", "https://", $CFG->wwwroot);
     }
     if (!empty($CFG->registerauth)) {
         $authplugin = get_auth_plugin($CFG->registerauth);
         if ($authplugin->can_signup()) {
             $signup = $wwwroot . '/login/signup.php';
         }
     }
     // TODO: now that we have multiauth it is hard to find out if there is a way to change password
     $forgot = $wwwroot . '/login/forgot_password.php';
     if (!empty($CFG->loginpasswordautocomplete)) {
         $autocomplete = 'autocomplete="off"';
     } else {
         $autocomplete = '';
     }
     $username = get_moodle_cookie();
     $this->content = new stdClass();
     $this->content->footer = '';
     $this->content->text = '';
     if (!isloggedin() or isguestuser()) {
         // Show the block
         if (empty($CFG->authloginviaemail)) {
             $strusername = get_string('username');
         } else {
             $strusername = get_string('usernameemail');
         }
         $this->content->text .= "\n" . '<form class="loginform" id="login" method="post" action="' . get_login_url() . '" ' . $autocomplete . '>';
         $this->content->text .= '<div class="c1 fld username"><label for="login_username">' . $strusername . '</label>';
         $this->content->text .= '<input type="text" name="username" id="login_username" value="' . s($username) . '" /></div>';
         $this->content->text .= '<div class="c1 fld password"><label for="login_password">' . get_string('password') . '</label>';
         $this->content->text .= '<input type="password" name="password" id="login_password" value="" ' . $autocomplete . ' /></div>';
         if (isset($CFG->rememberusername) and $CFG->rememberusername == 2) {
             $checked = $username ? 'checked="checked"' : '';
             $this->content->text .= '<div class="c1 rememberusername"><input type="checkbox" name="rememberusername" id="rememberusername" value="1" ' . $checked . '/>';
             $this->content->text .= ' <label for="rememberusername">' . get_string('rememberusername', 'admin') . '</label></div>';
         }
         $this->content->text .= '<div class="c1 btn"><input type="submit" value="' . get_string('login') . '" /></div>';
         $this->content->text .= "</form>\n";
         if (!empty($signup)) {
             $this->content->footer .= '<div><a href="' . $signup . '">' . get_string('startsignup') . '</a></div>';
         }
         if (!empty($forgot)) {
             $this->content->footer .= '<div><a href="' . $forgot . '">' . get_string('forgotaccount') . '</a></div>';
         }
     }
     return $this->content;
 }

 function execute($requests)
 {
     $url = get_login_url();
     if ($requests['login_params']) {
         if (strrpos($url, '?') !== false) {
             $url .= '&';
         } else {
             $url .= '?';
         }
         $url .= 'login_params=' . urlencode($requests['login_params']);
     }
     // リダイレクト
     header('Refresh: 3; URL=' . $url);
     //---- inc_ テンプレート用 変数 ----//
     $this->set('inc_page_header', fetch_inc_page_header('public'));
     $msg = '';
     switch ($requests['msg_code']) {
         case 'login_failed':
             $msg = 'ログインに失敗しました。再度、ログイン操作を行ってください。';
             break;
         case 'logout':
             $msg = 'ログアウトしました。';
             break;
         case 'password_reset_timeout':
             $msg = 'パスワード再設定の有効期限が過ぎています。';
             break;
         case 'change_mailaddress':
             $msg = 'メールアドレスが変更されました。';
             break;
         case 'change_password':
             $msg = 'パスワードを変更しました。新しいパスワードで再ログインしてください。';
             break;
         case 'taikai':
             $msg = '退会完了しました。ご利用ありがとうございました。';
             break;
         case 'invalid_url':
             $msg = 'このURLは既に無効になっています。';
             break;
         case 'regist_mail':
             $msg = 'メールアドレスを登録しました。';
             break;
         case 'login_rejected':
             $msg = 'ログインできませんでした。';
             break;
     }
     $this->set('msg', $msg);
     $this->set('login_url', $url);
     return 'success';
 }

 function execute($requests)
 {
     //<PCKTAI
     if (OPENPNE_AUTH_MODE == 'slavepne' || !(OPENPNE_REGIST_FROM & OPENPNE_REGIST_FROM_PC)) {
         client_redirect_login();
     }
     //>
     //---- inc_ テンプレート用 変数 ----//
     $this->set('inc_page_header', fetch_inc_page_header('regist'));
     //アフィリエイトタグ用変数
     $aftag = str_replace(array('({$ID})', '({$DATETIME})'), array($requests['c_member_id'], date("YmdHis")), AFFILIATE_TAG);
     $this->set('aftag', $aftag);
     $this->set('login_url', get_login_url());
     return 'success';
 }

 protected function do_save($action)
 {
     global $user;
     if (!$user->is_logged_in()) {
         if (VISIBILITY == 'private') {
             header('Location: ' . get_login_url($action->page));
         } else {
             header('Location: ' . get_base_url($action->page));
         }
         exit;
     }
     $this->file = new File($this->format_page_name($action->page, true));
     if ($_POST['updated'] == $this->file->time) {
         $this->file->save($_POST['text']);
     } else {
         header('Location: ' . $this->get_base_url(str_replace(DOC, '', rtrim($action->page, '/')) . '/edit/'));
         exit;
     }
     header('Location: ' . $this->get_base_url(str_replace(DOC, '', $action->page)));
     exit;
 }

/**
 * Default exception handler, uncaught exceptions are equivalent to error() in 1.9 and earlier
 *
 * @param Exception $ex
 * @return void -does not return. Terminates execution!
 */
function default_exception_handler($ex)
{
    global $CFG, $DB, $OUTPUT, $USER, $FULLME, $SESSION, $PAGE;
    // detect active db transactions, rollback and log as error
    abort_all_db_transactions();
    if ($ex instanceof required_capability_exception && !CLI_SCRIPT && !AJAX_SCRIPT && !empty($CFG->autologinguests) && !empty($USER->autologinguest)) {
        $SESSION->wantsurl = qualified_me();
        redirect(get_login_url());
    }
    $info = get_exception_info($ex);
    if (debugging('', DEBUG_MINIMAL)) {
        $logerrmsg = "Default exception handler: " . $info->message . ' Debug: ' . $info->debuginfo . "\n" . format_backtrace($info->backtrace, true);
        error_log($logerrmsg);
    }
    if (is_early_init($info->backtrace)) {
        echo bootstrap_renderer::early_error($info->message, $info->moreinfourl, $info->link, $info->backtrace, $info->debuginfo, $info->errorcode);
    } else {
        try {
            if ($DB) {
                // If you enable db debugging and exception is thrown, the print footer prints a lot of rubbish
                $DB->set_debug(0);
            }
            echo $OUTPUT->fatal_error($info->message, $info->moreinfourl, $info->link, $info->backtrace, $info->debuginfo);
        } catch (Exception $out_ex) {
            // default exception handler MUST not throw any exceptions!!
            // the problem here is we do not know if page already started or not, we only know that somebody messed up in outputlib or theme
            // so we just print at least something instead of "Exception thrown without a stack frame in Unknown on line 0":-(
            if (CLI_SCRIPT or AJAX_SCRIPT) {
                // just ignore the error and send something back using the safest method
                echo bootstrap_renderer::early_error($info->message, $info->moreinfourl, $info->link, $info->backtrace, $info->debuginfo, $info->errorcode);
            } else {
                echo bootstrap_renderer::early_error_content($info->message, $info->moreinfourl, $info->link, $info->backtrace, $info->debuginfo);
                $outinfo = get_exception_info($out_ex);
                echo bootstrap_renderer::early_error_content($outinfo->message, $outinfo->moreinfourl, $outinfo->link, $outinfo->backtrace, $outinfo->debuginfo);
            }
        }
    }
    exit(1);
    // General error code
}

 /**
  * Outputs an error message for any guests accessing the quiz
  *
  * @param int $course The course ID
  * @param array $quiz Array contingin quiz data
  * @param int $cm Course Module ID
  * @param int $context The page contect ID
  * @param array $messages Array containing any messages
  */
 public function view_page_guest($course, $quiz, $cm, $context, $messages) {
     $output = '';
     $output .= $this->view_information($quiz, $cm, $context, $messages);
     $guestno = html_writer::tag('p', get_string('guestsno', 'quiz'));
     $liketologin = html_writer::tag('p', get_string('liketologin'));
     $output .= $this->confirm($guestno."\n\n".$liketologin."\n", get_login_url(),
             get_referer(false));
     return $output;
 }

 /**
  * 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.........

if (user_has_role_assignment($USER->id,5)  ) {
$PAGE->requires->css('/student/custom.css');
}
$userid         = optional_param('id', 0, PARAM_INT);
$edit           = optional_param('edit', null, PARAM_BOOL);    // Turn editing on and off.
$reset          = optional_param('reset', null, PARAM_BOOL);

$PAGE->set_url('/user/profile.php', array('id' => $userid));

if (!empty($CFG->forceloginforprofiles)) {
    require_login();
    if (isguestuser()) {
        $PAGE->set_context(context_system::instance());
        echo $OUTPUT->header();
        echo $OUTPUT->confirm(get_string('guestcantaccessprofiles', 'error'),
                              get_login_url(),
                              $CFG->wwwroot);
        echo $OUTPUT->footer();
        die;
    }
} else if (!empty($CFG->forcelogin)) {
    require_login();
}

$userid = $userid ? $userid : $USER->id;       // Owner of the page.
if ((!$user = $DB->get_record('user', array('id' => $userid))) || ($user->deleted)) {
    $PAGE->set_context(context_system::instance());
    echo $OUTPUT->header();
    if (!$user) {
        echo $OUTPUT->notification(get_string('invaliduser', 'error'));
    } else {

        unset($SESSION->info);
    }
    if (isset($SESSION->backupprefs)) {
        unset($SESSION->backupprefs);
    }
    if (isset($SESSION->restore)) {
        unset($SESSION->restore);
    }
    if (isset($SESSION->import_preferences)) {
        unset($SESSION->import_preferences);
    }
}
if (!$to && isset($SESSION->restore->restoreto) && isset($SESSION->restore->importing) && isset($SESSION->restore->course_id)) {
    $to = $SESSION->restore->course_id;
}
$loginurl = get_login_url();
if (!empty($id)) {
    require_login($id);
    if (!has_capability('moodle/site:restore', get_context_instance(CONTEXT_COURSE, $id))) {
        if (empty($to)) {
            print_error("cannotuseadminadminorteacher", '', $loginurl);
        } else {
            if (!has_capability('moodle/site:restore', get_context_instance(CONTEXT_COURSE, $to)) && !has_capability('moodle/site:import', get_context_instance(CONTEXT_COURSE, $to))) {
                print_error("cannotuseadminadminorteacher", '', $loginurl);
            }
        }
    }
} else {
    if (!has_capability('moodle/site:restore', get_context_instance(CONTEXT_SYSTEM))) {
        print_error("cannotuseadmin", '', $loginurl);
    }

    if (! $cm = get_coursemodule_from_instance('chat', $chat->id, $course->id)) {
        print_error('invalidcoursemodule');
    }
}

require_course_login($course, true, $cm);

$context = context_module::instance($cm->id);
$PAGE->set_context($context);

// show some info for guests
if (isguestuser()) {
    $PAGE->set_title(format_string($chat->name));
    echo $OUTPUT->header();
    echo $OUTPUT->confirm('<p>'.get_string('noguests', 'chat').'</p>'.get_string('liketologin'),
            get_login_url(), $CFG->wwwroot.'/course/view.php?id='.$course->id);

    echo $OUTPUT->footer();
    exit;
}

add_to_log($course->id, 'chat', 'view', "view.php?id=$cm->id", $chat->id, $cm->id);

$strenterchat    = get_string('enterchat', 'chat');
$stridle         = get_string('idle', 'chat');
$strcurrentusers = get_string('currentusers', 'chat');
$strnextsession  = get_string('nextsession', 'chat');

$courseshortname = format_string($course->shortname, true, array('context' => context_course::instance($course->id)));
$title = $courseshortname . ': ' . format_string($chat->name);

 /**
  * 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.........

/**
 * Returns text to be displayed to the user which reflects their login status
 *
 * @uses $CFG
 * @uses $USER
 * @param course $course {@link $COURSE} object containing course information
 * @param user $user {@link $USER} object containing user information
 * @return string
 */
function user_login_string($course = NULL, $user = NULL)
{
    global $USER, $CFG, $SITE, $DB;
    if (empty($user) and !empty($USER->id)) {
        $user = $USER;
    }
    if (empty($course)) {
        $course = $SITE;
    }
    if (session_is_loggedinas()) {
        $realuser = session_get_realuser();
        $fullname = fullname($realuser, true);
        $realuserinfo = " [<a {$CFG->frametarget}\n        href=\"{$CFG->wwwroot}/course/loginas.php?id={$course->id}&amp;return=1&amp;sesskey=" . sesskey() . "\">{$fullname}</a>] ";
    } else {
        $realuserinfo = '';
    }
    $loginurl = get_login_url();
    if (empty($course->id)) {
        // $course->id is not defined during installation
        return '';
    } else {
        if (!empty($user->id)) {
            $context = get_context_instance(CONTEXT_COURSE, $course->id);
            $fullname = fullname($user, true);
            $username = "<a {$CFG->frametarget} href=\"{$CFG->wwwroot}/user/view.php?id={$user->id}&amp;course={$course->id}\">{$fullname}</a>";
            if (is_mnet_remote_user($user) and $idprovider = $DB->get_record('mnet_host', array('id' => $user->mnethostid))) {
                $username .= " from <a {$CFG->frametarget} href=\"{$idprovider->wwwroot}\">{$idprovider->name}</a>";
            }
            if (isset($user->username) && $user->username == 'guest') {
                $loggedinas = $realuserinfo . get_string('loggedinasguest') . " (<a {$CFG->frametarget} href=\"{$loginurl}\">" . get_string('login') . '</a>)';
            } else {
                if (!empty($user->access['rsw'][$context->path])) {
                    $rolename = '';
                    if ($role = $DB->get_record('role', array('id' => $user->access['rsw'][$context->path]))) {
                        $rolename = ': ' . format_string($role->name);
                    }
                    $loggedinas = get_string('loggedinas', 'moodle', $username) . $rolename . " (<a {$CFG->frametarget}\n                      href=\"{$CFG->wwwroot}/course/view.php?id={$course->id}&amp;switchrole=0&amp;sesskey=" . sesskey() . "\">" . get_string('switchrolereturn') . '</a>)';
                } else {
                    $loggedinas = $realuserinfo . get_string('loggedinas', 'moodle', $username) . ' ' . " (<a {$CFG->frametarget} href=\"{$CFG->wwwroot}/login/logout.php?sesskey=" . sesskey() . "\">" . get_string('logout') . '</a>)';
                }
            }
        } else {
            $loggedinas = get_string('loggedinnot', 'moodle') . " (<a {$CFG->frametarget} href=\"{$loginurl}\">" . get_string('login') . '</a>)';
        }
    }
    return '<div class="logininfo">' . $loggedinas . '</div>';
}

if (!($cm = get_coursemodule_from_instance("quora", $quora->id, $course->id))) {
    print_error('invalidcoursemodule');
}
$user = $USER;
require_login($course, false, $cm);
if ($returnpage == 'index.php') {
    $returnto = quora_go_back_to($returnpage . '?id=' . $course->id);
} else {
    $returnto = quora_go_back_to($returnpage . '?f=' . $quora->id);
}
if (isguestuser()) {
    // Guests can't change quora
    $PAGE->set_title($course->shortname);
    $PAGE->set_heading($course->fullname);
    echo $OUTPUT->header();
    echo $OUTPUT->confirm(get_string('noguesttracking', 'quora') . '<br /><br />' . get_string('liketologin'), get_login_url(), $returnto);
    echo $OUTPUT->footer();
    exit;
}
$info = new stdClass();
$info->name = fullname($user);
$info->quora = format_string($quora->name);
if ($mark == 'read') {
    if (!empty($d)) {
        if (!($discussion = $DB->get_record('quora_discussions', array('id' => $d, 'quora' => $quora->id)))) {
            print_error('invaliddiscussionid', 'quora');
        }
        quora_tp_mark_discussion_read($user, $d);
    } else {
        // Mark all messages read in current group
        $currentgroup = groups_get_activity_group($cm);

$messages = $accessmanager->describe_rules();
if ($quiz->attempts != 1) {
    $messages[] = get_string('gradingmethod', 'quiz', quiz_get_grading_option_name($quiz->grademethod));
}
echo $OUTPUT->box_start('quizinfo');
$accessmanager->print_messages($messages);
echo $OUTPUT->box_end();
/// Show number of attempts summary to those who can view reports.
if (has_capability('mod/quiz:viewreports', $context)) {
    if ($strattemptnum = quiz_num_attempt_summary($quiz, $cm)) {
        echo '<div class="quizattemptcounts"><a href="report.php?mode=overview&amp;id=' . $cm->id . '">' . $strattemptnum . "</a></div>\n";
    }
}
/// Guests can't do a quiz, so offer them a choice of logging in or going back.
if (isguestuser()) {
    echo $OUTPUT->confirm('<p>' . get_string('guestsno', 'quiz') . "</p>\n\n<p>" . get_string('liketologin') . "</p>\n", get_login_url(), get_referer(false));
    echo $OUTPUT->footer();
    exit;
}
/// If they are not enrolled in this course in a good enough role, tell them to enrol.
if (!($canattempt || $canpreview || $canreviewmine)) {
    echo $OUTPUT->box('<p>' . get_string('youneedtoenrol', 'quiz') . "</p>\n\n<p>" . $OUTPUT->continue_button($CFG->wwwroot . '/course/view.php?id=' . $course->id) . "</p>\n", 'generalbox', 'notice');
    echo $OUTPUT->footer();
    exit;
}
/// Get this user's attempts.
$attempts = quiz_get_user_attempts($quiz->id, $USER->id);
$lastfinishedattempt = end($attempts);
$unfinished = false;
if ($unfinishedattempt = quiz_get_user_attempt_unfinished($quiz->id, $USER->id)) {
    $attempts[] = $unfinishedattempt;

/**
 *  Processes a user's request to set a new password in the event they forgot the old one.
 *  If no user identifier has been supplied, it displays a form where they can submit their identifier.
 *  Where they have supplied identifier, the function will check their status, and send email as appropriate.
 */
function core_login_process_password_reset_request()
{
    global $DB, $OUTPUT, $CFG, $PAGE;
    $systemcontext = context_system::instance();
    $mform = new login_forgot_password_form();
    if ($mform->is_cancelled()) {
        redirect(get_login_url());
    } else {
        if ($data = $mform->get_data()) {
            // Requesting user has submitted form data.
            // Next find the user account in the database which the requesting user claims to own.
            if (!empty($data->username)) {
                // Username has been specified - load the user record based on that.
                $username = core_text::strtolower($data->username);
                // Mimic the login page process.
                $userparams = array('username' => $username, 'mnethostid' => $CFG->mnet_localhost_id, 'deleted' => 0, 'suspended' => 0);
                $user = $DB->get_record('user', $userparams);
            } else {
                // Try to load the user record based on email address.
                // this is tricky because
                // 1/ the email is not guaranteed to be unique - TODO: send email with all usernames to select the account for pw reset
                // 2/ mailbox may be case sensitive, the email domain is case insensitive - let's pretend it is all case-insensitive.
                $select = $DB->sql_like('email', ':email', false, true, false, '|') . " AND mnethostid = :mnethostid AND deleted=0 AND suspended=0";
                $params = array('email' => $DB->sql_like_escape($data->email, '|'), 'mnethostid' => $CFG->mnet_localhost_id);
                $user = $DB->get_record_select('user', $select, $params, '*', IGNORE_MULTIPLE);
            }
            // Target user details have now been identified, or we know that there is no such account.
            // Send email address to account's email address if appropriate.
            $pwresetstatus = PWRESET_STATUS_NOEMAILSENT;
            if ($user and !empty($user->confirmed)) {
                $userauth = get_auth_plugin($user->auth);
                if (!$userauth->can_reset_password() or !is_enabled_auth($user->auth) or !has_capability('moodle/user:changeownpassword', $systemcontext, $user->id)) {
                    if (send_password_change_info($user)) {
                        $pwresetstatus = PWRESET_STATUS_OTHEREMAILSENT;
                    } else {
                        print_error('cannotmailconfirm');
                    }
                } else {
                    // The account the requesting user claims to be is entitled to change their password.
                    // Next, check if they have an existing password reset in progress.
                    $resetinprogress = $DB->get_record('user_password_resets', array('userid' => $user->id));
                    if (empty($resetinprogress)) {
                        // Completely new reset request - common case.
                        $resetrecord = core_login_generate_password_reset($user);
                        $sendemail = true;
                    } else {
                        if ($resetinprogress->timerequested < time() - $CFG->pwresettime) {
                            // Preexisting, but expired request - delete old record & create new one.
                            // Uncommon case - expired requests are cleaned up by cron.
                            $DB->delete_records('user_password_resets', array('id' => $resetinprogress->id));
                            $resetrecord = core_login_generate_password_reset($user);
                            $sendemail = true;
                        } else {
                            if (empty($resetinprogress->timererequested)) {
                                // Preexisting, valid request. This is the first time user has re-requested the reset.
                                // Re-sending the same email once can actually help in certain circumstances
                                // eg by reducing the delay caused by greylisting.
                                $resetinprogress->timererequested = time();
                                $DB->update_record('user_password_resets', $resetinprogress);
                                $resetrecord = $resetinprogress;
                                $sendemail = true;
                            } else {
                                // Preexisting, valid request. User has already re-requested email.
                                $pwresetstatus = PWRESET_STATUS_ALREADYSENT;
                                $sendemail = false;
                            }
                        }
                    }
                    if ($sendemail) {
                        $sendresult = send_password_change_confirmation_email($user, $resetrecord);
                        if ($sendresult) {
                            $pwresetstatus = PWRESET_STATUS_TOKENSENT;
                        } else {
                            print_error('cannotmailconfirm');
                        }
                    }
                }
            }
            // Any email has now been sent.
            // Next display results to requesting user if settings permit.
            echo $OUTPUT->header();
            if (!empty($CFG->protectusernames)) {
                // Neither confirm, nor deny existance of any username or email address in database.
                // Print general (non-commital) message.
                notice(get_string('emailpasswordconfirmmaybesent'), $CFG->wwwroot . '/index.php');
                die;
                // Never reached.
            } else {
                if (empty($user)) {
                    // Protect usernames is off, and we couldn't find the user with details specified.
                    // Print failure advice.
                    notice(get_string('emailpasswordconfirmnotsent'), $CFG->wwwroot . '/forgot_password.php');
                    die;
                    // Never reached.
                } else {
//.........这里部分代码省略.........