Пример #1
0
/**
 * This function determines the actions of the members passed in urls.
 *
 * Adding actions to the Who's Online list:
 * Adding actions to this list is actually relatively easy...
 * - for actions anyone should be able to see, just add a string named whoall_ACTION.
 *   (where ACTION is the action used in index.php.)
 * - for actions that have a subaction which should be represented differently, use whoall_ACTION_SUBACTION.
 * - for actions that include a topic, and should be restricted, use whotopic_ACTION.
 * - for actions that use a message, by msg or quote, use whopost_ACTION.
 * - for administrator-only actions, use whoadmin_ACTION.
 * - for actions that should be viewable only with certain permissions, use whoallow_ACTION and
 * add a list of possible permissions to the $allowedActions array, using ACTION as the key.
 *
 * @param mixed[]|string $urls a single url (string) or an array of arrays, each inner array being (serialized request data, id_member)
 * @param string|false $preferred_prefix = false
 * @return mixed[]|string an array of descriptions if you passed an array, otherwise the string describing their current location.
 */
function determineActions($urls, $preferred_prefix = false)
{
    global $txt, $user_info, $modSettings, $scripturl;
    $db = database();
    if (!allowedTo('who_view')) {
        return array();
    }
    loadLanguage('Who');
    // Actions that require a specific permission level.
    $allowedActions = array('admin' => array('moderate_forum', 'manage_membergroups', 'manage_bans', 'admin_forum', 'manage_permissions', 'send_mail', 'manage_attachments', 'manage_smileys', 'manage_boards', 'edit_news'), 'ban' => array('manage_bans'), 'boardrecount' => array('admin_forum'), 'calendar' => array('calendar_view'), 'editnews' => array('edit_news'), 'mailing' => array('send_mail'), 'maintain' => array('admin_forum'), 'manageattachments' => array('manage_attachments'), 'manageboards' => array('manage_boards'), 'memberlist' => array('view_mlist'), 'moderate' => array('access_mod_center', 'moderate_forum', 'manage_membergroups'), 'optimizetables' => array('admin_forum'), 'repairboards' => array('admin_forum'), 'search' => array('search_posts'), 'setcensor' => array('moderate_forum'), 'setreserve' => array('moderate_forum'), 'stats' => array('view_stats'), 'viewErrorLog' => array('admin_forum'), 'viewmembers' => array('moderate_forum'));
    // Provide integration a way to add to the allowed action array
    call_integration_hook('integrate_whos_online_allowed', array(&$allowedActions));
    if (!is_array($urls)) {
        $url_list = array(array($urls, $user_info['id']));
    } else {
        $url_list = $urls;
    }
    // These are done to query these in large chunks. (instead of one by one.)
    $topic_ids = array();
    $profile_ids = array();
    $board_ids = array();
    $data = array();
    foreach ($url_list as $k => $url) {
        // Get the request parameters..
        $actions = @unserialize($url[0]);
        if ($actions === false) {
            continue;
        }
        // If it's the admin or moderation center, and there is an area set, use that instead.
        if (isset($actions['action']) && ($actions['action'] == 'admin' || $actions['action'] == 'moderate') && isset($actions['area'])) {
            $actions['action'] = $actions['area'];
        }
        // Check if there was no action or the action is display.
        if (!isset($actions['action']) || $actions['action'] == 'display') {
            // It's a topic!  Must be!
            if (isset($actions['topic'])) {
                // Assume they can't view it, and queue it up for later.
                $data[$k] = $txt['who_hidden'];
                $topic_ids[(int) $actions['topic']][$k] = $txt['who_topic'];
            } elseif (isset($actions['board'])) {
                // Hide first, show later.
                $data[$k] = $txt['who_hidden'];
                $board_ids[$actions['board']][$k] = $txt['who_board'];
            } else {
                $data[$k] = replaceBasicActionUrl($txt['who_index']);
            }
        } elseif ($actions['action'] == '') {
            $data[$k] = replaceBasicActionUrl($txt['who_index']);
        } else {
            // Viewing/editing a profile.
            if ($actions['action'] == 'profile') {
                // Whose?  Their own?
                if (empty($actions['u'])) {
                    require_once SUBSDIR . '/Profile.subs.php';
                    $memID = currentMemberID();
                    if ($memID == $user_info['id']) {
                        $actions['u'] = $url[1];
                    } else {
                        $actions['u'] = $memID;
                    }
                }
                $data[$k] = $txt['who_hidden'];
                $profile_ids[(int) $actions['u']][$k] = $actions['action'] == 'profile' ? $txt['who_viewprofile'] : $txt['who_profile'];
            } elseif (($actions['action'] == 'post' || $actions['action'] == 'post2' || $actions['action'] == 'topicbyemail') && empty($actions['topic']) && isset($actions['board'])) {
                $data[$k] = $txt['who_hidden'];
                if ($actions['action'] == 'topicbyemail') {
                    $board_ids[(int) $actions['board']][$k] = $txt['who_topicbyemail'];
                } else {
                    $board_ids[(int) $actions['board']][$k] = isset($actions['poll']) ? $txt['who_poll'] : $txt['who_post'];
                }
            } elseif (isset($actions['sa']) && isset($txt['whoall_' . $actions['action'] . '_' . $actions['sa']])) {
                $data[$k] = $preferred_prefix && isset($txt[$preferred_prefix . $actions['action'] . '_' . $actions['sa']]) ? $txt[$preferred_prefix . $actions['action'] . '_' . $actions['sa']] : $txt['whoall_' . $actions['action'] . '_' . $actions['sa']];
            } elseif (isset($txt['whoall_' . $actions['action']])) {
                $data[$k] = $preferred_prefix && isset($txt[$preferred_prefix . $actions['action']]) ? $txt[$preferred_prefix . $actions['action']] : replaceBasicActionUrl($txt['whoall_' . $actions['action']]);
            } elseif (isset($txt['whotopic_' . $actions['action']])) {
                // Find out what topic they are accessing.
                $topic = (int) (isset($actions['topic']) ? $actions['topic'] : (isset($actions['from']) ? $actions['from'] : 0));
                $data[$k] = $txt['who_hidden'];
                $topic_ids[$topic][$k] = $txt['whotopic_' . $actions['action']];
            } elseif (isset($actions['sa']) && isset($txt['whotopic_' . $actions['action'] . '_' . $actions['sa']])) {
                // Find out what topic they are accessing.
                $topic = (int) (isset($actions['topic']) ? $actions['topic'] : (isset($actions['from']) ? $actions['from'] : 0));
                $data[$k] = $txt['who_hidden'];
                $topic_ids[$topic][$k] = $txt['whotopic_' . $actions['action'] . '_' . $actions['sa']];
            } elseif (isset($txt['whopost_' . $actions['action']])) {
                // Find out what message they are accessing.
                $msgid = (int) (isset($actions['msg']) ? $actions['msg'] : (isset($actions['quote']) ? $actions['quote'] : 0));
                $result = $db->query('', '
					SELECT m.id_topic, m.subject
					FROM {db_prefix}messages AS m
						INNER JOIN {db_prefix}boards AS b ON (b.id_board = m.id_board)
						INNER JOIN {db_prefix}topics AS t ON (t.id_topic = m.id_topic' . ($modSettings['postmod_active'] ? ' AND t.approved = {int:is_approved}' : '') . ')
					WHERE m.id_msg = {int:id_msg}
						AND {query_see_board}' . ($modSettings['postmod_active'] ? '
						AND m.approved = {int:is_approved}' : '') . '
					LIMIT 1', array('is_approved' => 1, 'id_msg' => $msgid));
                list($id_topic, $subject) = $db->fetch_row($result);
                $data[$k] = sprintf($txt['whopost_' . $actions['action']], $scripturl . '?topic=' . $id_topic . '.0', $subject);
                $db->free_result($result);
                if (empty($id_topic)) {
                    $data[$k] = $txt['who_hidden'];
                }
            } elseif (allowedTo('moderate_forum') && isset($txt['whoadmin_' . $actions['action']])) {
                $data[$k] = $txt['whoadmin_' . $actions['action']];
            } elseif (isset($allowedActions[$actions['action']])) {
                if (allowedTo($allowedActions[$actions['action']])) {
                    if (isset($actions['sa']) && isset($txt['whoallow_' . $actions['action'] . '_' . $actions['sa']])) {
                        $data[$k] = replaceBasicActionUrl($txt['whoallow_' . $actions['action'] . '_' . $actions['sa']]);
                    } else {
                        $data[$k] = replaceBasicActionUrl($txt['whoallow_' . $actions['action']]);
                    }
                } elseif (in_array('moderate_forum', $allowedActions[$actions['action']])) {
                    $data[$k] = $txt['who_moderate'];
                } elseif (in_array('admin_forum', $allowedActions[$actions['action']])) {
                    $data[$k] = $txt['who_admin'];
                } else {
                    $data[$k] = $txt['who_hidden'];
                }
            } elseif (!empty($actions['action'])) {
                $data[$k] = sprintf($txt['who_generic'], $actions['action']);
            } else {
                $data[$k] = $txt['who_unknown'];
            }
        }
        // Maybe the action is integrated into another system?
        if (count($integrate_actions = call_integration_hook('integrate_whos_online', array($actions))) > 0) {
            // Try each integraion hook with this url and see if they can fill in the details
            foreach ($integrate_actions as $integrate_action) {
                if (!empty($integrate_action)) {
                    // Found it, all done then
                    $data[$k] = $integrate_action;
                    break;
                }
            }
        }
    }
    // Load topic names.
    if (!empty($topic_ids)) {
        require_once SUBSDIR . '/Topic.subs.php';
        $topics_data = topicsList(array_keys($topic_ids));
        foreach ($topics_data as $topic) {
            // Show the topic's subject for each of the members looking at this...
            foreach ($topic_ids[$topic['id_topic']] as $k => $session_text) {
                $data[$k] = sprintf($session_text, $scripturl . '?topic=' . $topic['id_topic'] . '.0', $topic['subject']);
            }
        }
    }
    // Load board names.
    if (!empty($board_ids)) {
        require_once SUBSDIR . '/Boards.subs.php';
        $boards_list = getBoardList(array('included_boards' => array_keys($board_ids)), true);
        foreach ($boards_list as $board) {
            // Put the board name into the string for each member...
            foreach ($board_ids[$board['id_board']] as $k => $session_text) {
                $data[$k] = sprintf($session_text, $scripturl . '?board=' . $board['id_board'] . '.0', $board['board_name']);
            }
        }
    }
    // Load member names for the profile.
    if (!empty($profile_ids) && (allowedTo('profile_view_any') || allowedTo('profile_view_own'))) {
        require_once SUBSDIR . '/Members.subs.php';
        $result = getBasicMemberData(array_keys($profile_ids));
        foreach ($result as $row) {
            // If they aren't allowed to view this person's profile, skip it.
            if (!allowedTo('profile_view_any') && $user_info['id'] != $row['id_member']) {
                continue;
            }
            // Set their action on each - session/text to sprintf.
            foreach ($profile_ids[$row['id_member']] as $k => $session_text) {
                $data[$k] = sprintf($session_text, $scripturl . '?action=profile;u=' . $row['id_member'], $row['real_name']);
            }
        }
    }
    if (!is_array($urls)) {
        return isset($data[0]) ? $data[0] : false;
    } else {
        return $data;
    }
}
Пример #2
0
    /**
     * The central part of the board - topic display.
     *
     * What it does:
     * - This function loads the posts in a topic up so they can be displayed.
     * - It uses the main sub template of the Display template.
     * - It requires a topic, and can go to the previous or next topic from it.
     * - It jumps to the correct post depending on a number/time/IS_MSG passed.
     * - It depends on the messages_per_page, defaultMaxMessages and enableAllMessages settings.
     * - It is accessed by ?topic=id_topic.START.
     */
    public function action_display()
    {
        global $scripturl, $txt, $modSettings, $context, $settings;
        global $options, $user_info, $board_info, $topic, $board;
        global $attachments, $messages_request;
        // What are you gonna display if these are empty?!
        if (empty($topic)) {
            fatal_lang_error('no_board', false);
        }
        // Load the template
        loadTemplate('Display');
        $context['sub_template'] = 'messages';
        // And the topic functions
        require_once SUBSDIR . '/Topic.subs.php';
        require_once SUBSDIR . '/Messages.subs.php';
        // Not only does a prefetch make things slower for the server, but it makes it impossible to know if they read it.
        if (isset($_SERVER['HTTP_X_MOZ']) && $_SERVER['HTTP_X_MOZ'] == 'prefetch') {
            @ob_end_clean();
            header('HTTP/1.1 403 Prefetch Forbidden');
            die;
        }
        // How much are we sticking on each page?
        $context['messages_per_page'] = empty($modSettings['disableCustomPerPage']) && !empty($options['messages_per_page']) ? $options['messages_per_page'] : $modSettings['defaultMaxMessages'];
        $template_layers = Template_Layers::getInstance();
        $template_layers->addEnd('messages_informations');
        $includeUnapproved = !$modSettings['postmod_active'] || allowedTo('approve_posts');
        // Let's do some work on what to search index.
        if (count($_GET) > 2) {
            foreach ($_GET as $k => $v) {
                if (!in_array($k, array('topic', 'board', 'start', session_name()))) {
                    $context['robot_no_index'] = true;
                }
            }
        }
        if (!empty($_REQUEST['start']) && (!is_numeric($_REQUEST['start']) || $_REQUEST['start'] % $context['messages_per_page'] != 0)) {
            $context['robot_no_index'] = true;
        }
        // Find the previous or next topic.  Make a fuss if there are no more.
        if (isset($_REQUEST['prev_next']) && ($_REQUEST['prev_next'] == 'prev' || $_REQUEST['prev_next'] == 'next')) {
            // No use in calculating the next topic if there's only one.
            if ($board_info['num_topics'] > 1) {
                $includeStickies = !empty($modSettings['enableStickyTopics']);
                $topic = $_REQUEST['prev_next'] === 'prev' ? previousTopic($topic, $board, $user_info['id'], $includeUnapproved, $includeStickies) : nextTopic($topic, $board, $user_info['id'], $includeUnapproved, $includeStickies);
                $context['current_topic'] = $topic;
            }
            // Go to the newest message on this topic.
            $_REQUEST['start'] = 'new';
        }
        // Add 1 to the number of views of this topic (except for robots).
        if (!$user_info['possibly_robot'] && (empty($_SESSION['last_read_topic']) || $_SESSION['last_read_topic'] != $topic)) {
            increaseViewCounter($topic);
            $_SESSION['last_read_topic'] = $topic;
        }
        $topic_selects = array();
        $topic_tables = array();
        $topic_parameters = array('topic' => $topic, 'member' => $user_info['id'], 'board' => (int) $board);
        // Allow addons to add additional details to the topic query
        call_integration_hook('integrate_topic_query', array(&$topic_selects, &$topic_tables, &$topic_parameters));
        // Load the topic details
        $topicinfo = getTopicInfo($topic_parameters, 'all', $topic_selects, $topic_tables);
        if (empty($topicinfo)) {
            fatal_lang_error('not_a_topic', false);
        }
        // Is this a moved topic that we are redirecting to?
        if (!empty($topicinfo['id_redirect_topic']) && !isset($_GET['noredir'])) {
            markTopicsRead(array($user_info['id'], $topic, $topicinfo['id_last_msg'], 0), $topicinfo['new_from'] !== 0);
            redirectexit('topic=' . $topicinfo['id_redirect_topic'] . '.0;redirfrom=' . $topicinfo['id_topic']);
        }
        $context['real_num_replies'] = $context['num_replies'] = $topicinfo['num_replies'];
        $context['topic_first_message'] = $topicinfo['id_first_msg'];
        $context['topic_last_message'] = $topicinfo['id_last_msg'];
        $context['topic_unwatched'] = isset($topicinfo['unwatched']) ? $topicinfo['unwatched'] : 0;
        if (isset($_GET['redirfrom'])) {
            $redir_topics = topicsList(array((int) $_GET['redirfrom']));
            if (!empty($redir_topics[(int) $_GET['redirfrom']])) {
                $context['topic_redirected_from'] = $redir_topics[(int) $_GET['redirfrom']];
                $context['topic_redirected_from']['redir_href'] = $scripturl . '?topic=' . $context['topic_redirected_from']['id_topic'] . '.0;noredir';
            }
        }
        // Add up unapproved replies to get real number of replies...
        if ($modSettings['postmod_active'] && allowedTo('approve_posts')) {
            $context['real_num_replies'] += $topicinfo['unapproved_posts'] - ($topicinfo['approved'] ? 0 : 1);
        }
        // If this topic was derived from another, set the followup details
        if (!empty($topicinfo['derived_from'])) {
            require_once SUBSDIR . '/FollowUps.subs.php';
            $context['topic_derived_from'] = topicStartedHere($topic, $includeUnapproved);
        }
        // If this topic has unapproved posts, we need to work out how many posts the user can see, for page indexing.
        if (!$includeUnapproved && $topicinfo['unapproved_posts'] && !$user_info['is_guest']) {
            $myUnapprovedPosts = unapprovedPosts($topic, $user_info['id']);
            $context['total_visible_posts'] = $context['num_replies'] + $myUnapprovedPosts + ($topicinfo['approved'] ? 1 : 0);
        } elseif ($user_info['is_guest']) {
            $context['total_visible_posts'] = $context['num_replies'] + ($topicinfo['approved'] ? 1 : 0);
        } else {
            $context['total_visible_posts'] = $context['num_replies'] + $topicinfo['unapproved_posts'] + ($topicinfo['approved'] ? 1 : 0);
        }
        // When was the last time this topic was replied to?  Should we warn them about it?
        if (!empty($modSettings['oldTopicDays'])) {
            $mgsOptions = basicMessageInfo($topicinfo['id_last_msg'], true);
            $context['oldTopicError'] = $mgsOptions['poster_time'] + $modSettings['oldTopicDays'] * 86400 < time() && empty($topicinfo['is_sticky']);
        } else {
            $context['oldTopicError'] = false;
        }
        // The start isn't a number; it's information about what to do, where to go.
        if (!is_numeric($_REQUEST['start'])) {
            // Redirect to the page and post with new messages, originally by Omar Bazavilvazo.
            if ($_REQUEST['start'] == 'new') {
                // Guests automatically go to the last post.
                if ($user_info['is_guest']) {
                    $context['start_from'] = $context['total_visible_posts'] - 1;
                    $_REQUEST['start'] = $context['start_from'];
                } else {
                    // Fall through to the next if statement.
                    $_REQUEST['start'] = 'msg' . $topicinfo['new_from'];
                }
            }
            // Start from a certain time index, not a message.
            if (substr($_REQUEST['start'], 0, 4) == 'from') {
                $timestamp = (int) substr($_REQUEST['start'], 4);
                if ($timestamp === 0) {
                    $_REQUEST['start'] = 0;
                } else {
                    // Find the number of messages posted before said time...
                    $context['start_from'] = countNewPosts($topic, $topicinfo, $timestamp);
                    $_REQUEST['start'] = $context['start_from'];
                }
            } elseif (substr($_REQUEST['start'], 0, 3) == 'msg') {
                $virtual_msg = (int) substr($_REQUEST['start'], 3);
                if (!$topicinfo['unapproved_posts'] && $virtual_msg >= $topicinfo['id_last_msg']) {
                    $context['start_from'] = $context['total_visible_posts'] - 1;
                } elseif (!$topicinfo['unapproved_posts'] && $virtual_msg <= $topicinfo['id_first_msg']) {
                    $context['start_from'] = 0;
                } else {
                    $only_approved = $modSettings['postmod_active'] && $topicinfo['unapproved_posts'] && !allowedTo('approve_posts');
                    $context['start_from'] = countMessagesBefore($topic, $virtual_msg, false, $only_approved, !$user_info['is_guest']);
                }
                // We need to reverse the start as well in this case.
                $_REQUEST['start'] = $context['start_from'];
            }
        }
        // Mark the mention as read if requested
        if (isset($_REQUEST['mentionread']) && !empty($virtual_msg)) {
            require_once CONTROLLERDIR . '/Mentions.controller.php';
            $mentions = new Mentions_Controller();
            $mentions->setData(array('id_mention' => $_REQUEST['item'], 'mark' => $_REQUEST['mark']));
            $mentions->action_markread();
        }
        // Create a previous next string if the selected theme has it as a selected option.
        if ($modSettings['enablePreviousNext']) {
            $context['links'] += array('go_prev' => $scripturl . '?topic=' . $topic . '.0;prev_next=prev#new', 'go_next' => $scripturl . '?topic=' . $topic . '.0;prev_next=next#new');
        }
        // Derived from, set the link back
        if (!empty($context['topic_derived_from'])) {
            $context['links']['derived_from'] = $scripturl . '?msg=' . $context['topic_derived_from']['derived_from'];
        }
        // Check if spellchecking is both enabled and actually working. (for quick reply.)
        $context['show_spellchecking'] = !empty($modSettings['enableSpellChecking']) && function_exists('pspell_new');
        if ($context['show_spellchecking']) {
            loadJavascriptFile('spellcheck.js', array('defer' => true));
        }
        // Do we need to show the visual verification image?
        $context['require_verification'] = !$user_info['is_mod'] && !$user_info['is_admin'] && !empty($modSettings['posts_require_captcha']) && ($user_info['posts'] < $modSettings['posts_require_captcha'] || $user_info['is_guest'] && $modSettings['posts_require_captcha'] == -1);
        if ($context['require_verification']) {
            require_once SUBSDIR . '/VerificationControls.class.php';
            $verificationOptions = array('id' => 'post');
            $context['require_verification'] = create_control_verification($verificationOptions);
            $context['visual_verification_id'] = $verificationOptions['id'];
        }
        // Are we showing signatures - or disabled fields?
        $context['signature_enabled'] = substr($modSettings['signature_settings'], 0, 1) == 1;
        $context['disabled_fields'] = isset($modSettings['disabled_profile_fields']) ? array_flip(explode(',', $modSettings['disabled_profile_fields'])) : array();
        // Censor the title...
        censorText($topicinfo['subject']);
        $context['page_title'] = $topicinfo['subject'];
        // Is this topic sticky, or can it even be?
        $topicinfo['is_sticky'] = empty($modSettings['enableStickyTopics']) ? '0' : $topicinfo['is_sticky'];
        // Allow addons access to the topicinfo array
        call_integration_hook('integrate_display_topic', array($topicinfo));
        // Default this topic to not marked for notifications... of course...
        $context['is_marked_notify'] = false;
        // Did we report a post to a moderator just now?
        $context['report_sent'] = isset($_GET['reportsent']);
        if ($context['report_sent']) {
            $template_layers->add('report_sent');
        }
        // Let's get nosey, who is viewing this topic?
        if (!empty($settings['display_who_viewing'])) {
            require_once SUBSDIR . '/Who.subs.php';
            formatViewers($topic, 'topic');
        }
        // If all is set, but not allowed... just unset it.
        $can_show_all = !empty($modSettings['enableAllMessages']) && $context['total_visible_posts'] > $context['messages_per_page'] && $context['total_visible_posts'] < $modSettings['enableAllMessages'];
        if (isset($_REQUEST['all']) && !$can_show_all) {
            unset($_REQUEST['all']);
        } elseif (isset($_REQUEST['all'])) {
            $_REQUEST['start'] = -1;
        }
        // Construct the page index, allowing for the .START method...
        $context['page_index'] = constructPageIndex($scripturl . '?topic=' . $topic . '.%1$d', $_REQUEST['start'], $context['total_visible_posts'], $context['messages_per_page'], true, array('all' => $can_show_all, 'all_selected' => isset($_REQUEST['all'])));
        $context['start'] = $_REQUEST['start'];
        // This is information about which page is current, and which page we're on - in case you don't like the constructed page index. (again, wireles..)
        $context['page_info'] = array('current_page' => $_REQUEST['start'] / $context['messages_per_page'] + 1, 'num_pages' => floor(($context['total_visible_posts'] - 1) / $context['messages_per_page']) + 1);
        // Figure out all the link to the next/prev
        $context['links'] += array('prev' => $_REQUEST['start'] >= $context['messages_per_page'] ? $scripturl . '?topic=' . $topic . '.' . ($_REQUEST['start'] - $context['messages_per_page']) : '', 'next' => $_REQUEST['start'] + $context['messages_per_page'] < $context['total_visible_posts'] ? $scripturl . '?topic=' . $topic . '.' . ($_REQUEST['start'] + $context['messages_per_page']) : '');
        // If they are viewing all the posts, show all the posts, otherwise limit the number.
        if ($can_show_all && isset($_REQUEST['all'])) {
            // No limit! (actually, there is a limit, but...)
            $context['messages_per_page'] = -1;
            // Set start back to 0...
            $_REQUEST['start'] = 0;
        }
        // Build the link tree.
        $context['linktree'][] = array('url' => $scripturl . '?topic=' . $topic . '.0', 'name' => $topicinfo['subject']);
        // Build a list of this board's moderators.
        $context['moderators'] =& $board_info['moderators'];
        $context['link_moderators'] = array();
        // Information about the current topic...
        $context['is_locked'] = $topicinfo['locked'];
        $context['is_sticky'] = $topicinfo['is_sticky'];
        $context['is_very_hot'] = $topicinfo['num_replies'] >= $modSettings['hotTopicVeryPosts'];
        $context['is_hot'] = $topicinfo['num_replies'] >= $modSettings['hotTopicPosts'];
        $context['is_approved'] = $topicinfo['approved'];
        $context['is_poll'] = $topicinfo['id_poll'] > 0 && !empty($modSettings['pollMode']) && allowedTo('poll_view');
        determineTopicClass($context);
        // Did this user start the topic or not?
        $context['user']['started'] = $user_info['id'] == $topicinfo['id_member_started'] && !$user_info['is_guest'];
        $context['topic_starter_id'] = $topicinfo['id_member_started'];
        // Set the topic's information for the template.
        $context['subject'] = $topicinfo['subject'];
        $context['num_views'] = $topicinfo['num_views'];
        $context['num_views_text'] = $context['num_views'] == 1 ? $txt['read_one_time'] : sprintf($txt['read_many_times'], $context['num_views']);
        $context['mark_unread_time'] = !empty($virtual_msg) ? $virtual_msg : $topicinfo['new_from'];
        // Set a canonical URL for this page.
        $context['canonical_url'] = $scripturl . '?topic=' . $topic . '.' . $context['start'];
        // For quick reply we need a response prefix in the default forum language.
        $context['response_prefix'] = response_prefix();
        // If we want to show event information in the topic, prepare the data.
        if (allowedTo('calendar_view') && !empty($modSettings['cal_showInTopic']) && !empty($modSettings['cal_enabled'])) {
            // We need events details and all that jazz
            require_once SUBSDIR . '/Calendar.subs.php';
            // First, try create a better time format, ignoring the "time" elements.
            if (preg_match('~%[AaBbCcDdeGghjmuYy](?:[^%]*%[AaBbCcDdeGghjmuYy])*~', $user_info['time_format'], $matches) == 0 || empty($matches[0])) {
                $date_string = $user_info['time_format'];
            } else {
                $date_string = $matches[0];
            }
            // Get event information for this topic.
            $events = eventInfoForTopic($topic);
            $context['linked_calendar_events'] = array();
            foreach ($events as $event) {
                // Prepare the dates for being formatted.
                $start_date = sscanf($event['start_date'], '%04d-%02d-%02d');
                $start_date = mktime(12, 0, 0, $start_date[1], $start_date[2], $start_date[0]);
                $end_date = sscanf($event['end_date'], '%04d-%02d-%02d');
                $end_date = mktime(12, 0, 0, $end_date[1], $end_date[2], $end_date[0]);
                $context['linked_calendar_events'][] = array('id' => $event['id_event'], 'title' => $event['title'], 'can_edit' => allowedTo('calendar_edit_any') || $event['id_member'] == $user_info['id'] && allowedTo('calendar_edit_own'), 'modify_href' => $scripturl . '?action=post;msg=' . $topicinfo['id_first_msg'] . ';topic=' . $topic . '.0;calendar;eventid=' . $event['id_event'] . ';' . $context['session_var'] . '=' . $context['session_id'], 'can_export' => allowedTo('calendar_edit_any') || $event['id_member'] == $user_info['id'] && allowedTo('calendar_edit_own'), 'export_href' => $scripturl . '?action=calendar;sa=ical;eventid=' . $event['id_event'] . ';' . $context['session_var'] . '=' . $context['session_id'], 'start_date' => standardTime($start_date, $date_string, 'none'), 'start_timestamp' => $start_date, 'end_date' => standardTime($end_date, $date_string, 'none'), 'end_timestamp' => $end_date, 'is_last' => false);
            }
            if (!empty($context['linked_calendar_events'])) {
                $context['linked_calendar_events'][count($context['linked_calendar_events']) - 1]['is_last'] = true;
                $template_layers->add('display_calendar');
            }
        }
        // Create the poll info if it exists.
        if ($context['is_poll']) {
            $template_layers->add('display_poll');
            require_once SUBSDIR . '/Poll.subs.php';
            loadPollContext($topicinfo['id_poll']);
            // Build the poll moderation button array.
            $context['poll_buttons'] = array('vote' => array('test' => 'allow_return_vote', 'text' => 'poll_return_vote', 'image' => 'poll_options.png', 'lang' => true, 'url' => $scripturl . '?topic=' . $context['current_topic'] . '.' . $context['start']), 'results' => array('test' => 'allow_poll_view', 'text' => 'poll_results', 'image' => 'poll_results.png', 'lang' => true, 'url' => $scripturl . '?topic=' . $context['current_topic'] . '.' . $context['start'] . ';viewresults'), 'change_vote' => array('test' => 'allow_change_vote', 'text' => 'poll_change_vote', 'image' => 'poll_change_vote.png', 'lang' => true, 'url' => $scripturl . '?action=poll;sa=vote;topic=' . $context['current_topic'] . '.' . $context['start'] . ';poll=' . $context['poll']['id'] . ';' . $context['session_var'] . '=' . $context['session_id']), 'lock' => array('test' => 'allow_lock_poll', 'text' => !$context['poll']['is_locked'] ? 'poll_lock' : 'poll_unlock', 'image' => 'poll_lock.png', 'lang' => true, 'url' => $scripturl . '?action=lockvoting;topic=' . $context['current_topic'] . '.' . $context['start'] . ';' . $context['session_var'] . '=' . $context['session_id']), 'edit' => array('test' => 'allow_edit_poll', 'text' => 'poll_edit', 'image' => 'poll_edit.png', 'lang' => true, 'url' => $scripturl . '?action=editpoll;topic=' . $context['current_topic'] . '.' . $context['start']), 'remove_poll' => array('test' => 'can_remove_poll', 'text' => 'poll_remove', 'image' => 'admin_remove_poll.png', 'lang' => true, 'custom' => 'onclick="return confirm(\'' . $txt['poll_remove_warn'] . '\');"', 'url' => $scripturl . '?action=poll;sa=remove;topic=' . $context['current_topic'] . '.' . $context['start'] . ';' . $context['session_var'] . '=' . $context['session_id']));
            // Allow mods to add additional buttons here
            call_integration_hook('integrate_poll_buttons');
        }
        // Calculate the fastest way to get the messages!
        $ascending = true;
        $start = $_REQUEST['start'];
        $limit = $context['messages_per_page'];
        $firstIndex = 0;
        if ($start >= $context['total_visible_posts'] / 2 && $context['messages_per_page'] != -1) {
            $ascending = !$ascending;
            $limit = $context['total_visible_posts'] <= $start + $limit ? $context['total_visible_posts'] - $start : $limit;
            $start = $context['total_visible_posts'] <= $start + $limit ? 0 : $context['total_visible_posts'] - $start - $limit;
            $firstIndex = $limit - 1;
        }
        // Taking care of member specific settings
        $limit_settings = array('messages_per_page' => $context['messages_per_page'], 'start' => $start, 'offset' => $limit);
        // Get each post and poster in this topic.
        $topic_details = getTopicsPostsAndPoster($topic, $limit_settings, $ascending);
        $messages = $topic_details['messages'];
        $posters = array_unique($topic_details['all_posters']);
        $all_posters = $topic_details['all_posters'];
        unset($topic_details);
        call_integration_hook('integrate_display_message_list', array(&$messages, &$posters));
        // Guests can't mark topics read or for notifications, just can't sorry.
        if (!$user_info['is_guest'] && !empty($messages)) {
            $mark_at_msg = max($messages);
            if ($mark_at_msg >= $topicinfo['id_last_msg']) {
                $mark_at_msg = $modSettings['maxMsgID'];
            }
            if ($mark_at_msg >= $topicinfo['new_from']) {
                markTopicsRead(array($user_info['id'], $topic, $mark_at_msg, $topicinfo['unwatched']), $topicinfo['new_from'] !== 0);
            }
            updateReadNotificationsFor($topic, $board);
            // Have we recently cached the number of new topics in this board, and it's still a lot?
            if (isset($_REQUEST['topicseen']) && isset($_SESSION['topicseen_cache'][$board]) && $_SESSION['topicseen_cache'][$board] > 5) {
                $_SESSION['topicseen_cache'][$board]--;
            } elseif (isset($_REQUEST['topicseen'])) {
                // Use the mark read tables... and the last visit to figure out if this should be read or not.
                $numNewTopics = getUnreadCountSince($board, empty($_SESSION['id_msg_last_visit']) ? 0 : $_SESSION['id_msg_last_visit']);
                // If there're no real new topics in this board, mark the board as seen.
                if (empty($numNewTopics)) {
                    $_REQUEST['boardseen'] = true;
                } else {
                    $_SESSION['topicseen_cache'][$board] = $numNewTopics;
                }
            } elseif (isset($_SESSION['topicseen_cache'][$board])) {
                $_SESSION['topicseen_cache'][$board]--;
            }
            // Mark board as seen if we came using last post link from BoardIndex. (or other places...)
            if (isset($_REQUEST['boardseen'])) {
                require_once SUBSDIR . '/Boards.subs.php';
                markBoardsRead($board, false, false);
            }
        }
        $attachments = array();
        // If there _are_ messages here... (probably an error otherwise :!)
        if (!empty($messages)) {
            require_once SUBSDIR . '/Attachments.subs.php';
            // Fetch attachments.
            $includeUnapproved = !$modSettings['postmod_active'] || allowedTo('approve_posts');
            if (!empty($modSettings['attachmentEnable']) && allowedTo('view_attachments')) {
                $attachments = getAttachments($messages, $includeUnapproved, 'filter_accessible_attachment', $all_posters);
            }
            $msg_parameters = array('message_list' => $messages, 'new_from' => $topicinfo['new_from']);
            $msg_selects = array();
            $msg_tables = array();
            call_integration_hook('integrate_message_query', array(&$msg_selects, &$msg_tables, &$msg_parameters));
            // What?  It's not like it *couldn't* be only guests in this topic...
            if (!empty($posters)) {
                loadMemberData($posters);
            }
            // Load in the likes for this group of messages
            if (!empty($modSettings['likes_enabled'])) {
                require_once SUBSDIR . '/Likes.subs.php';
                $context['likes'] = loadLikes($messages, true);
                // ajax controller for likes
                loadJavascriptFile('like_posts.js', array('defer' => true));
                loadLanguage('Errors');
                // Initiate likes and the tooltips for likes
                addInlineJavascript('
				$(document).ready(function () {
					var likePostInstance = likePosts.prototype.init({
						oTxt: ({
							btnText : ' . JavaScriptEscape($txt['ok_uppercase']) . ',
							likeHeadingError : ' . JavaScriptEscape($txt['like_heading_error']) . ',
							error_occurred : ' . JavaScriptEscape($txt['error_occurred']) . '
						}),
					});

					$(".like_button, .unlike_button").SiteTooltip({
						hoverIntent: {
							sensitivity: 10,
							interval: 150,
							timeout: 50
						}
					});
				});', true);
            }
            $messages_request = loadMessageRequest($msg_selects, $msg_tables, $msg_parameters);
            if (!empty($modSettings['enableFollowup'])) {
                require_once SUBSDIR . '/FollowUps.subs.php';
                $context['follow_ups'] = followupTopics($messages, $includeUnapproved);
            }
            // Go to the last message if the given time is beyond the time of the last message.
            if (isset($context['start_from']) && $context['start_from'] >= $topicinfo['num_replies']) {
                $context['start_from'] = $topicinfo['num_replies'];
            }
            // Since the anchor information is needed on the top of the page we load these variables beforehand.
            $context['first_message'] = isset($messages[$firstIndex]) ? $messages[$firstIndex] : $messages[0];
            $context['first_new_message'] = isset($context['start_from']) && $_REQUEST['start'] == $context['start_from'];
        } else {
            $messages_request = false;
            $context['first_message'] = 0;
            $context['first_new_message'] = false;
        }
        $context['jump_to'] = array('label' => addslashes(un_htmlspecialchars($txt['jump_to'])), 'board_name' => htmlspecialchars(strtr(strip_tags($board_info['name']), array('&amp;' => '&')), ENT_COMPAT, 'UTF-8'), 'child_level' => $board_info['child_level']);
        // Set the callback.  (do you REALIZE how much memory all the messages would take?!?)
        // This will be called from the template.
        $context['get_message'] = array($this, 'prepareDisplayContext_callback');
        // Now set all the wonderful, wonderful permissions... like moderation ones...
        $common_permissions = array('can_approve' => 'approve_posts', 'can_ban' => 'manage_bans', 'can_sticky' => 'make_sticky', 'can_merge' => 'merge_any', 'can_split' => 'split_any', 'calendar_post' => 'calendar_post', 'can_mark_notify' => 'mark_any_notify', 'can_send_topic' => 'send_topic', 'can_send_pm' => 'pm_send', 'can_send_email' => 'send_email_to_members', 'can_report_moderator' => 'report_any', 'can_moderate_forum' => 'moderate_forum', 'can_issue_warning' => 'issue_warning', 'can_restore_topic' => 'move_any', 'can_restore_msg' => 'move_any');
        foreach ($common_permissions as $contextual => $perm) {
            $context[$contextual] = allowedTo($perm);
        }
        // Permissions with _any/_own versions.  $context[YYY] => ZZZ_any/_own.
        $anyown_permissions = array('can_move' => 'move', 'can_lock' => 'lock', 'can_delete' => 'remove', 'can_add_poll' => 'poll_add', 'can_remove_poll' => 'poll_remove', 'can_reply' => 'post_reply', 'can_reply_unapproved' => 'post_unapproved_replies');
        foreach ($anyown_permissions as $contextual => $perm) {
            $context[$contextual] = allowedTo($perm . '_any') || $context['user']['started'] && allowedTo($perm . '_own');
        }
        // Cleanup all the permissions with extra stuff...
        $context['can_mark_notify'] &= !$context['user']['is_guest'];
        $context['can_sticky'] &= !empty($modSettings['enableStickyTopics']);
        $context['calendar_post'] &= !empty($modSettings['cal_enabled']) && (allowedTo('modify_any') || $context['user']['started'] && allowedTo('modify_own'));
        $context['can_add_poll'] &= !empty($modSettings['pollMode']) && $topicinfo['id_poll'] <= 0;
        $context['can_remove_poll'] &= !empty($modSettings['pollMode']) && $topicinfo['id_poll'] > 0;
        $context['can_reply'] &= empty($topicinfo['locked']) || allowedTo('moderate_board');
        $context['can_reply_unapproved'] &= $modSettings['postmod_active'] && (empty($topicinfo['locked']) || allowedTo('moderate_board'));
        $context['can_issue_warning'] &= in_array('w', $context['admin_features']) && !empty($modSettings['warning_enable']);
        // Handle approval flags...
        $context['can_reply_approved'] = $context['can_reply'];
        $context['can_reply'] |= $context['can_reply_unapproved'];
        $context['can_quote'] = $context['can_reply'] && (empty($modSettings['disabledBBC']) || !in_array('quote', explode(',', $modSettings['disabledBBC'])));
        $context['can_mark_unread'] = !$user_info['is_guest'] && $settings['show_mark_read'];
        $context['can_unwatch'] = !$user_info['is_guest'] && $modSettings['enable_unwatch'];
        $context['can_send_topic'] = (!$modSettings['postmod_active'] || $topicinfo['approved']) && allowedTo('send_topic');
        $context['can_print'] = empty($modSettings['disable_print_topic']);
        // Start this off for quick moderation - it will be or'd for each post.
        $context['can_remove_post'] = allowedTo('delete_any') || allowedTo('delete_replies') && $context['user']['started'];
        // Can restore topic?  That's if the topic is in the recycle board and has a previous restore state.
        $context['can_restore_topic'] &= !empty($modSettings['recycle_enable']) && $modSettings['recycle_board'] == $board && !empty($topicinfo['id_previous_board']);
        $context['can_restore_msg'] &= !empty($modSettings['recycle_enable']) && $modSettings['recycle_board'] == $board && !empty($topicinfo['id_previous_topic']);
        $context['can_follow_up'] = !empty($modSettings['enableFollowup']) && boardsallowedto('post_new') !== array();
        // Check if the draft functions are enabled and that they have permission to use them (for quick reply.)
        $context['drafts_save'] = !empty($modSettings['drafts_enabled']) && !empty($modSettings['drafts_post_enabled']) && allowedTo('post_draft') && $context['can_reply'];
        $context['drafts_autosave'] = !empty($context['drafts_save']) && !empty($modSettings['drafts_autosave_enabled']) && allowedTo('post_autosave_draft');
        if (!empty($context['drafts_save'])) {
            loadLanguage('Drafts');
        }
        if (!empty($context['drafts_autosave']) && empty($options['use_editor_quick_reply'])) {
            loadJavascriptFile('drafts.js');
        }
        if (!empty($modSettings['mentions_enabled'])) {
            $context['mentions_enabled'] = true;
            // Just using the plain text quick reply and not the editor
            if (empty($options['use_editor_quick_reply'])) {
                loadJavascriptFile(array('jquery.atwho.js', 'jquery.caret.min.js', 'mentioning.js'));
            }
            loadCSSFile('jquery.atwho.css');
            addInlineJavascript('
			$(document).ready(function () {
				for (var i = 0, count = all_elk_mentions.length; i < count; i++)
					all_elk_mentions[i].oMention = new elk_mentions(all_elk_mentions[i].oOptions);
			});');
        }
        // Load up the Quick ModifyTopic and Quick Reply scripts
        loadJavascriptFile('topic.js');
        // Auto video embeding enabled?
        if (!empty($modSettings['enableVideoEmbeding'])) {
            addInlineJavascript('
		$(document).ready(function() {
			$().linkifyvideo(oEmbedtext);
		});');
        }
        // Load up the "double post" sequencing magic.
        if (!empty($options['display_quick_reply'])) {
            checkSubmitOnce('register');
            $context['name'] = isset($_SESSION['guest_name']) ? $_SESSION['guest_name'] : '';
            $context['email'] = isset($_SESSION['guest_email']) ? $_SESSION['guest_email'] : '';
            if (!empty($options['use_editor_quick_reply']) && $context['can_reply']) {
                // Needed for the editor and message icons.
                require_once SUBSDIR . '/Editor.subs.php';
                // Now create the editor.
                $editorOptions = array('id' => 'message', 'value' => '', 'labels' => array('post_button' => $txt['post']), 'height' => '250px', 'width' => '100%', 'preview_type' => 0);
                create_control_richedit($editorOptions);
                $context['attached'] = '';
                $context['make_poll'] = isset($_REQUEST['poll']);
                // Message icons - customized icons are off?
                $context['icons'] = getMessageIcons($board);
                if (!empty($context['icons'])) {
                    $context['icons'][count($context['icons']) - 1]['is_last'] = true;
                }
            }
        }
        addJavascriptVar(array('notification_topic_notice' => $context['is_marked_notify'] ? $txt['notification_disable_topic'] : $txt['notification_enable_topic']), true);
        if ($context['can_send_topic']) {
            addJavascriptVar(array('sendtopic_cancel' => $txt['modify_cancel'], 'sendtopic_back' => $txt['back'], 'sendtopic_close' => $txt['find_close'], 'sendtopic_error' => $txt['send_error_occurred'], 'required_field' => $txt['require_field']), true);
        }
        // Build the normal button array.
        $context['normal_buttons'] = array('reply' => array('test' => 'can_reply', 'text' => 'reply', 'image' => 'reply.png', 'lang' => true, 'url' => $scripturl . '?action=post;topic=' . $context['current_topic'] . '.' . $context['start'] . ';last_msg=' . $context['topic_last_message'], 'active' => true), 'notify' => array('test' => 'can_mark_notify', 'text' => $context['is_marked_notify'] ? 'unnotify' : 'notify', 'image' => ($context['is_marked_notify'] ? 'un' : '') . 'notify.png', 'lang' => true, 'custom' => 'onclick="return notifyButton(this);"', 'url' => $scripturl . '?action=notify;sa=' . ($context['is_marked_notify'] ? 'off' : 'on') . ';topic=' . $context['current_topic'] . '.' . $context['start'] . ';' . $context['session_var'] . '=' . $context['session_id']), 'mark_unread' => array('test' => 'can_mark_unread', 'text' => 'mark_unread', 'image' => 'markunread.png', 'lang' => true, 'url' => $scripturl . '?action=markasread;sa=topic;t=' . $context['mark_unread_time'] . ';topic=' . $context['current_topic'] . '.' . $context['start'] . ';' . $context['session_var'] . '=' . $context['session_id']), 'unwatch' => array('test' => 'can_unwatch', 'text' => ($context['topic_unwatched'] ? '' : 'un') . 'watch', 'image' => ($context['topic_unwatched'] ? '' : 'un') . 'watched.png', 'lang' => true, 'custom' => 'onclick="return unwatchButton(this);"', 'url' => $scripturl . '?action=unwatchtopic;topic=' . $context['current_topic'] . '.' . $context['start'] . ';sa=' . ($context['topic_unwatched'] ? 'off' : 'on') . ';' . $context['session_var'] . '=' . $context['session_id']), 'send' => array('test' => 'can_send_topic', 'text' => 'send_topic', 'image' => 'sendtopic.png', 'lang' => true, 'url' => $scripturl . '?action=emailuser;sa=sendtopic;topic=' . $context['current_topic'] . '.0', 'custom' => 'onclick="return sendtopicOverlayDiv(this.href, \'' . $txt['send_topic'] . '\');"'), 'print' => array('test' => 'can_print', 'text' => 'print', 'image' => 'print.png', 'lang' => true, 'custom' => 'rel="nofollow"', 'class' => 'new_win', 'url' => $scripturl . '?action=topic;sa=printpage;topic=' . $context['current_topic'] . '.0'));
        // Build the mod button array
        $context['mod_buttons'] = array('move' => array('test' => 'can_move', 'text' => 'move_topic', 'image' => 'admin_move.png', 'lang' => true, 'url' => $scripturl . '?action=movetopic;current_board=' . $context['current_board'] . ';topic=' . $context['current_topic'] . '.0'), 'delete' => array('test' => 'can_delete', 'text' => 'remove_topic', 'image' => 'admin_rem.png', 'lang' => true, 'custom' => 'onclick="return confirm(\'' . $txt['are_sure_remove_topic'] . '\');"', 'url' => $scripturl . '?action=removetopic2;topic=' . $context['current_topic'] . '.0;' . $context['session_var'] . '=' . $context['session_id']), 'lock' => array('test' => 'can_lock', 'text' => empty($context['is_locked']) ? 'set_lock' : 'set_unlock', 'image' => 'admin_lock.png', 'lang' => true, 'url' => $scripturl . '?action=topic;sa=lock;topic=' . $context['current_topic'] . '.' . $context['start'] . ';' . $context['session_var'] . '=' . $context['session_id']), 'sticky' => array('test' => 'can_sticky', 'text' => empty($context['is_sticky']) ? 'set_sticky' : 'set_nonsticky', 'image' => 'admin_sticky.png', 'lang' => true, 'url' => $scripturl . '?action=topic;sa=sticky;topic=' . $context['current_topic'] . '.' . $context['start'] . ';' . $context['session_var'] . '=' . $context['session_id']), 'merge' => array('test' => 'can_merge', 'text' => 'merge', 'image' => 'merge.png', 'lang' => true, 'url' => $scripturl . '?action=mergetopics;board=' . $context['current_board'] . '.0;from=' . $context['current_topic']), 'calendar' => array('test' => 'calendar_post', 'text' => 'calendar_link', 'image' => 'linktocal.png', 'lang' => true, 'url' => $scripturl . '?action=post;calendar;msg=' . $context['topic_first_message'] . ';topic=' . $context['current_topic'] . '.0'));
        // Restore topic. eh?  No monkey business.
        if ($context['can_restore_topic']) {
            $context['mod_buttons'][] = array('text' => 'restore_topic', 'image' => '', 'lang' => true, 'url' => $scripturl . '?action=restoretopic;topics=' . $context['current_topic'] . ';' . $context['session_var'] . '=' . $context['session_id']);
        }
        if ($context['can_reply'] && !empty($options['display_quick_reply'])) {
            $template_layers->add('quickreply');
        }
        $template_layers->add('pages_and_buttons');
        // Allow adding new buttons easily.
        call_integration_hook('integrate_display_buttons');
        call_integration_hook('integrate_mod_buttons');
    }