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<?php

/**
 * Manage and maintain the boards and categories of the forum.
 *
 * Simple Machines Forum (SMF)
 *
 * @package SMF
 * @author Simple Machines https://www.simplemachines.org
 * @copyright 2020 Simple Machines and individual contributors
 * @license https://www.simplemachines.org/about/smf/license.php BSD
 *
 * @version 2.1 RC2
 */

if (!defined('SMF'))
    die('No direct access...');

/**
 * The main dispatcher; doesn't do anything, just delegates.
 * This is the main entry point for all the manageboards admin screens.
 * Called by ?action=admin;area=manageboards.
 * It checks the permissions, based on the sub-action, and calls a function based on the sub-action.
 *
 * @uses ManageBoards language file.
 */
function ManageBoards()
{
    global $context, $txt;

    // Everything's gonna need this.
    loadLanguage('ManageBoards');

    // Format: 'sub-action' => array('function', 'permission')
    $subActions = array(
        'board' => array('EditBoard', 'manage_boards'),
        'board2' => array('EditBoard2', 'manage_boards'),
        'cat' => array('EditCategory', 'manage_boards'),
        'cat2' => array('EditCategory2', 'manage_boards'),
        'main' => array('ManageBoardsMain', 'manage_boards'),
        'move' => array('ManageBoardsMain', 'manage_boards'),
        'newcat' => array('EditCategory', 'manage_boards'),
        'newboard' => array('EditBoard', 'manage_boards'),
        'settings' => array('EditBoardSettings', 'admin_forum'),
    );

    // Create the tabs for the template.
    $context[$context['admin_menu_name']]['tab_data'] = array(
        'title' => $txt['boards_and_cats'],
        'help' => 'manage_boards',
        'description' => $txt['boards_and_cats_desc'],
        'tabs' => array(
            'main' => array(
            ),
            'newcat' => array(
            ),
            'settings' => array(
                'description' => $txt['mboards_settings_desc'],
            ),
        ),
    );

    call_integration_hook('integrate_manage_boards', array(&$subActions));

    // Default to sub action 'main' or 'settings' depending on permissions.
    $_REQUEST['sa'] = isset($_REQUEST['sa']) && isset($subActions[$_REQUEST['sa']]) ? $_REQUEST['sa'] : (allowedTo('manage_boards') ? 'main' : 'settings');

    // Have you got the proper permissions?
    isAllowedTo($subActions[$_REQUEST['sa']][1]);

    call_helper($subActions[$_REQUEST['sa']][0]);
}

/**
 * The main control panel thing, the screen showing all boards and categories.
 * Called by ?action=admin;area=manageboards or ?action=admin;area=manageboards;sa=move.
 * Requires manage_boards permission.
 * It also handles the interface for moving boards.
 *
 * @uses ManageBoards template, main sub-template.
 */
function ManageBoardsMain()
{
    global $txt, $context, $cat_tree, $boards, $boardList, $scripturl, $sourcedir, $smcFunc;

    loadTemplate('ManageBoards');

    require_once($sourcedir . '/Subs-Boards.php');

    if (isset($_REQUEST['sa']) && $_REQUEST['sa'] == 'move' && in_array($_REQUEST['move_to'], array('child', 'before', 'after', 'top')))
    {
        checkSession('get');
        validateToken('admin-bm-' . (int) $_REQUEST['src_board'], 'request');

        if ($_REQUEST['move_to'] === 'top')
            $boardOptions = array(
                'move_to' => $_REQUEST['move_to'],
                'target_category' => (int) $_REQUEST['target_cat'],
                'move_first_child' => true,
            );
        else
            $boardOptions = array(
                'move_to' => $_REQUEST['move_to'],
                'target_board' => (int) $_REQUEST['target_board'],
                'move_first_child' => true,
            );
        modifyBoard((int) $_REQUEST['src_board'], $boardOptions);
    }

    getBoardTree();

    $context['move_board'] = !empty($_REQUEST['move']) && isset($boards[(int) $_REQUEST['move']]) ? (int) $_REQUEST['move'] : 0;

    $context['categories'] = array();
    foreach ($cat_tree as $catid => $tree)
    {
        $context['categories'][$catid] = array(
            'name' => &$tree['node']['name'],
            'id' => &$tree['node']['id'],
            'boards' => array()
        );
        $move_cat = !empty($context['move_board']) && $boards[$context['move_board']]['category'] == $catid;
        foreach ($boardList[$catid] as $boardid)
        {
            $context['categories'][$catid]['boards'][$boardid] = array(
                'id' => &$boards[$boardid]['id'],
                'name' => &$boards[$boardid]['name'],
                'description' => &$boards[$boardid]['description'],
                'child_level' => &$boards[$boardid]['level'],
                'move' => $move_cat && ($boardid == $context['move_board'] || isChildOf($boardid, $context['move_board'])),
                'permission_profile' => &$boards[$boardid]['profile'],
                'is_redirect' => !empty($boards[$boardid]['redirect']),
            );
        }
    }

    if (!empty($context['move_board']))
    {
        createToken('admin-bm-' . $context['move_board'], 'request');

        $context['move_title'] = sprintf($txt['mboards_select_destination'], $smcFunc['htmlspecialchars']($boards[$context['move_board']]['name']));
        foreach ($cat_tree as $catid => $tree)
        {
            $prev_child_level = 0;
            $prev_board = 0;
            $stack = array();
            // Just a shortcut, this is the same for all the urls
            $security = $context['session_var'] . '=' . $context['session_id'] . ';' . $context['admin-bm-' . $context['move_board'] . '_token_var'] . '=' . $context['admin-bm-' . $context['move_board'] . '_token'];
            foreach ($boardList[$catid] as $boardid)
            {
                if (!isset($context['categories'][$catid]['move_link']))
                    $context['categories'][$catid]['move_link'] = array(
                        'child_level' => 0,
                        'label' => $txt['mboards_order_before'] . ' \'' . $smcFunc['htmlspecialchars']($boards[$boardid]['name']) . '\'',
                        'href' => $scripturl . '?action=admin;area=manageboards;sa=move;src_board=' . $context['move_board'] . ';target_board=' . $boardid . ';move_to=before;' . $security,
                    );

                if (!$context['categories'][$catid]['boards'][$boardid]['move'])
                    $context['categories'][$catid]['boards'][$boardid]['move_links'] = array(
                        array(
                            'child_level' => $boards[$boardid]['level'],
                            'label' => $txt['mboards_order_after'] . '\'' . $smcFunc['htmlspecialchars']($boards[$boardid]['name']) . '\'',
                            'href' => $scripturl . '?action=admin;area=manageboards;sa=move;src_board=' . $context['move_board'] . ';target_board=' . $boardid . ';move_to=after;' . $security,
                            'class' => $boards[$boardid]['level'] > 0 ? 'above' : 'below',
                        ),
                        array(
                            'child_level' => $boards[$boardid]['level'] + 1,
                            'label' => $txt['mboards_order_child_of'] . ' \'' . $smcFunc['htmlspecialchars']($boards[$boardid]['name']) . '\'',
                            'href' => $scripturl . '?action=admin;area=manageboards;sa=move;src_board=' . $context['move_board'] . ';target_board=' . $boardid . ';move_to=child;' . $security,
                            'class' => 'here',
                        ),
                    );

                $difference = $boards[$boardid]['level'] - $prev_child_level;
                if ($difference == 1)
                    array_push($stack, !empty($context['categories'][$catid]['boards'][$prev_board]['move_links']) ? array_shift($context['categories'][$catid]['boards'][$prev_board]['move_links']) : null);
                elseif ($difference < 0)
                {
                    if (empty($context['categories'][$catid]['boards'][$prev_board]['move_links']))
                        $context['categories'][$catid]['boards'][$prev_board]['move_links'] = array();
                    for ($i = 0; $i < -$difference; $i++)
                        if (($temp = array_pop($stack)) != null)
                            array_unshift($context['categories'][$catid]['boards'][$prev_board]['move_links'], $temp);
                }

                $prev_board = $boardid;
                $prev_child_level = $boards[$boardid]['level'];
            }
            if (!empty($stack) && !empty($context['categories'][$catid]['boards'][$prev_board]['move_links']))
                $context['categories'][$catid]['boards'][$prev_board]['move_links'] = array_merge($stack, $context['categories'][$catid]['boards'][$prev_board]['move_links']);
            elseif (!empty($stack))
                $context['categories'][$catid]['boards'][$prev_board]['move_links'] = $stack;

            if (empty($boardList[$catid]))
                $context['categories'][$catid]['move_link'] = array(
                    'child_level' => 0,
                    'label' => $txt['mboards_order_before'] . ' \'' . $smcFunc['htmlspecialchars']($tree['node']['name']) . '\'',
                    'href' => $scripturl . '?action=admin;area=manageboards;sa=move;src_board=' . $context['move_board'] . ';target_cat=' . $catid . ';move_to=top;' . $security,
                );
        }
    }

    call_integration_hook('integrate_boards_main');

    $context['page_title'] = $txt['boards_and_cats'];
    $context['can_manage_permissions'] = allowedTo('manage_permissions');
}

/**
 * Modify a specific category.
 * (screen for editing and repositioning a category.)
 * Also used to show the confirm deletion of category screen
 * (sub-template confirm_category_delete).
 * Called by ?action=admin;area=manageboards;sa=cat
 * Requires manage_boards permission.
 *
 * @uses ManageBoards template, modify_category sub-template.
 */
function EditCategory()
{
    global $txt, $context, $cat_tree, $boardList, $boards, $smcFunc, $sourcedir;

    loadTemplate('ManageBoards');
    require_once($sourcedir . '/Subs-Boards.php');
    require_once($sourcedir . '/Subs-Editor.php');
    getBoardTree();

    // id_cat must be a number.... if it exists.
    $_REQUEST['cat'] = isset($_REQUEST['cat']) ? (int) $_REQUEST['cat'] : 0;

    // Start with one - "In first place".
    $context['category_order'] = array(
        array(
            'id' => 0,
            'name' => $txt['mboards_order_first'],
            'selected' => !empty($_REQUEST['cat']) ? $cat_tree[$_REQUEST['cat']]['is_first'] : false,
            'true_name' => ''
        )
    );

    // If this is a new category set up some defaults.
    if ($_REQUEST['sa'] == 'newcat')
    {
        $context['category'] = array(
            'id' => 0,
            'name' => $txt['mboards_new_cat_name'],
            'editable_name' => $smcFunc['htmlspecialchars']($txt['mboards_new_cat_name']),
            'description' => '',
            'can_collapse' => true,
            'is_new' => true,
            'is_empty' => true
        );
    }
    // Category doesn't exist, man... sorry.
    elseif (!isset($cat_tree[$_REQUEST['cat']]))
        redirectexit('action=admin;area=manageboards');
    else
    {
        $context['category'] = array(
            'id' => $_REQUEST['cat'],
            'name' => $cat_tree[$_REQUEST['cat']]['node']['name'],
            'editable_name' => $cat_tree[$_REQUEST['cat']]['node']['name'],
            'description' => $cat_tree[$_REQUEST['cat']]['node']['description'],
            'can_collapse' => !empty($cat_tree[$_REQUEST['cat']]['node']['can_collapse']),
            'children' => array(),
            'is_empty' => empty($cat_tree[$_REQUEST['cat']]['children'])
        );

        foreach ($boardList[$_REQUEST['cat']] as $child_board)
            $context['category']['children'][] = str_repeat('-', $boards[$child_board]['level']) . ' ' . $boards[$child_board]['name'];
    }

    $prevCat = 0;
    foreach ($cat_tree as $catid => $tree)
    {
        if ($catid == $_REQUEST['cat'] && $prevCat > 0)
            $context['category_order'][$prevCat]['selected'] = true;
        elseif ($catid != $_REQUEST['cat'])
            $context['category_order'][$catid] = array(
                'id' => $catid,
                'name' => $txt['mboards_order_after'] . $tree['node']['name'],
                'selected' => false,
                'true_name' => $tree['node']['name']
            );
        $prevCat = $catid;
    }
    if (!isset($_REQUEST['delete']))
    {
        $context['sub_template'] = 'modify_category';
        $context['page_title'] = $_REQUEST['sa'] == 'newcat' ? $txt['mboards_new_cat_name'] : $txt['cat_edit'];
    }
    else
    {
        $context['sub_template'] = 'confirm_category_delete';
        $context['page_title'] = $txt['mboards_delete_cat'];
    }

    // Create a special token.
    createToken('admin-bc-' . $_REQUEST['cat']);
    $context['token_check'] = 'admin-bc-' . $_REQUEST['cat'];

    call_integration_hook('integrate_edit_category');
}

/**
 * Function for handling a submitted form saving the category.
 * (complete the modifications to a specific category.)
 * It also handles deletion of a category.
 * It requires manage_boards permission.
 * Called by ?action=admin;area=manageboards;sa=cat2
 * Redirects to ?action=admin;area=manageboards.
 */
function EditCategory2()
{
    global $sourcedir, $smcFunc, $context;

    checkSession();
    validateToken('admin-bc-' . $_REQUEST['cat']);

    require_once($sourcedir . '/Subs-Categories.php');
    require_once($sourcedir . '/Subs-Editor.php');

    $_POST['cat'] = (int) $_POST['cat'];

    // Add a new category or modify an existing one..
    if (isset($_POST['edit']) || isset($_POST['add']))
    {
        $catOptions = array();

        if (isset($_POST['cat_order']))
            $catOptions['move_after'] = (int) $_POST['cat_order'];

        // Try and get any valid HTML to BBC first, add a naive attempt to strip it off, htmlspecialchars for the rest, parse it on display
        $catOptions['cat_name'] = $smcFunc['htmlspecialchars'](strip_tags(html_to_bbc($_POST['cat_name'])));
        $catOptions['cat_desc'] = $smcFunc['htmlspecialchars'](strip_tags(html_to_bbc($_POST['cat_desc'])));
        $catOptions['is_collapsible'] = isset($_POST['collapse']);

        if (isset($_POST['add']))
            createCategory($catOptions);

        else
            modifyCategory($_POST['cat'], $catOptions);
    }
    // If they want to delete - first give them confirmation.
    elseif (isset($_POST['delete']) && !isset($_POST['confirmation']) && !isset($_POST['empty']))
    {
        EditCategory();
        return;
    }
    // Delete the category!
    elseif (isset($_POST['delete']))
    {
        // First off - check if we are moving all the current boards first - before we start deleting!
        if (isset($_POST['delete_action']) && $_POST['delete_action'] == 1)
        {
            if (empty($_POST['cat_to']))
                fatal_lang_error('mboards_delete_error');

            deleteCategories(array($_POST['cat']), (int) $_POST['cat_to']);
        }
        else
            deleteCategories(array($_POST['cat']));
    }

    redirectexit('action=admin;area=manageboards');
}

/**
 * Modify a specific board...
 * screen for editing and repositioning a board.
 * called by ?action=admin;area=manageboards;sa=board
 * uses the modify_board sub-template of the ManageBoards template.
 * requires manage_boards permission.
 * also used to show the confirm deletion of category screen (sub-template confirm_board_delete).
 */
function EditBoard()
{
    global $txt, $context, $cat_tree, $boards, $boardList;
    global $sourcedir, $smcFunc, $modSettings;

    loadTemplate('ManageBoards');
    require_once($sourcedir . '/Subs-Boards.php');
    require_once($sourcedir . '/Subs-Editor.php');
    getBoardTree();

    // For editing the profile we'll need this.
    loadLanguage('ManagePermissions');
    require_once($sourcedir . '/ManagePermissions.php');
    loadPermissionProfiles();

    // People with manage-boards are special.
    require_once($sourcedir . '/Subs-Members.php');
    $groups = groupsAllowedTo('manage_boards', null);
    $context['board_managers'] = $groups['allowed']; // We don't need *all* this in $context.

    // id_board must be a number....
    $_REQUEST['boardid'] = isset($_REQUEST['boardid']) ? (int) $_REQUEST['boardid'] : 0;

    if (!isset($boards[$_REQUEST['boardid']]))
    {
        $_REQUEST['boardid'] = 0;
        $_REQUEST['sa'] = 'newboard';
    }

    if ('newboard' === $_REQUEST['sa'])
    {
        // Category doesn't exist, man... sorry.
        if (empty($_REQUEST['cat']))
            redirectexit('action=admin;area=manageboards');

        // Some things that need to be setup for a new board.
        $curBoard = array(
            'member_groups' => array(0, -1),
            'deny_groups' => array(),
            'category' => (int) $_REQUEST['cat']
        );
        $context['board_order'] = array();
        $context['board'] = array(
            'is_new' => true,
            'id' => 0,
            'name' => $txt['mboards_new_board_name'],
            'description' => '',
            'count_posts' => 1,
            'posts' => 0,
            'topics' => 0,
            'theme' => 0,
            'profile' => 1,
            'override_theme' => 0,
            'redirect' => '',
            'category' => (int) $_REQUEST['cat'],
            'no_children' => true,
        );
    }
    else
    {
        // Just some easy shortcuts.
        $curBoard = &$boards[$_REQUEST['boardid']];
        $context['board'] = $boards[$_REQUEST['boardid']];
        $context['board']['no_children'] = empty($boards[$_REQUEST['boardid']]['tree']['children']);
        $context['board']['is_recycle'] = !empty($modSettings['recycle_enable']) && !empty($modSettings['recycle_board']) && $modSettings['recycle_board'] == $context['board']['id'];
    }

    // As we may have come from the permissions screen keep track of where we should go on save.
    $context['redirect_location'] = isset($_GET['rid']) && $_GET['rid'] == 'permissions' ? 'permissions' : 'boards';

    // We might need this to hide links to certain areas.
    $context['can_manage_permissions'] = allowedTo('manage_permissions');

    // Default membergroups.
    $context['groups'] = array(
        -1 => array(
            'id' => '-1',
            'name' => $txt['parent_guests_only'],
            'allow' => in_array('-1', $curBoard['member_groups']),
            'deny' => in_array('-1', $curBoard['deny_groups']),
            'is_post_group' => false,
        ),
        0 => array(
            'id' => '0',
            'name' => $txt['parent_members_only'],
            'allow' => in_array('0', $curBoard['member_groups']),
            'deny' => in_array('0', $curBoard['deny_groups']),
            'is_post_group' => false,
        )
    );

    // Load membergroups.
    $request = $smcFunc['db_query']('', '
        SELECT group_name, id_group, min_posts
        FROM {db_prefix}membergroups
        WHERE id_group > {int:moderator_group} OR id_group = {int:global_moderator}
        ORDER BY min_posts, id_group != {int:global_moderator}, group_name',
        array(
            'moderator_group' => 3,
            'global_moderator' => 2,
        )
    );
    while ($row = $smcFunc['db_fetch_assoc']($request))
    {
        if ($_REQUEST['sa'] == 'newboard' && $row['min_posts'] == -1)
            $curBoard['member_groups'][] = $row['id_group'];

        $context['groups'][(int) $row['id_group']] = array(
            'id' => $row['id_group'],
            'name' => trim($row['group_name']),
            'allow' => in_array($row['id_group'], $curBoard['member_groups']),
            'deny' => in_array($row['id_group'], $curBoard['deny_groups']),
            'is_post_group' => $row['min_posts'] != -1,
        );
    }
    $smcFunc['db_free_result']($request);

    // Category doesn't exist, man... sorry.
    if (!isset($boardList[$curBoard['category']]))
        redirectexit('action=admin;area=manageboards');

    foreach ($boardList[$curBoard['category']] as $boardid)
    {
        if ($boardid == $_REQUEST['boardid'])
        {
            $context['board_order'][] = array(
                'id' => $boardid,
                'name' => str_repeat('-', $boards[$boardid]['level']) . ' (' . $txt['mboards_current_position'] . ')',
                'children' => $boards[$boardid]['tree']['children'],
                'no_children' => empty($boards[$boardid]['tree']['children']),
                'is_child' => false,
                'selected' => true
            );
        }
        else
        {
            $context['board_order'][] = array(
                'id' => $boardid,
                'name' => str_repeat('-', $boards[$boardid]['level']) . ' ' . $boards[$boardid]['name'],
                'is_child' => empty($_REQUEST['boardid']) ? false : isChildOf($boardid, $_REQUEST['boardid']),
                'selected' => false
            );
        }
    }

    // Are there any places to move child boards to in the case where we are confirming a delete?
    if (!empty($_REQUEST['boardid']))
    {
        $context['can_move_children'] = false;
        $context['children'] = $boards[$_REQUEST['boardid']]['tree']['children'];

        foreach ($context['board_order'] as $lBoard)
            if ($lBoard['is_child'] == false && $lBoard['selected'] == false)
                $context['can_move_children'] = true;
    }

    // Get other available categories.
    $context['categories'] = array();
    foreach ($cat_tree as $catID => $tree)
        $context['categories'][] = array(
            'id' => $catID == $curBoard['category'] ? 0 : $catID,
            'name' => $tree['node']['name'],
            'selected' => $catID == $curBoard['category']
        );

    $request = $smcFunc['db_query']('', '
        SELECT mem.id_member, mem.real_name
        FROM {db_prefix}moderators AS mods
            INNER JOIN {db_prefix}members AS mem ON (mem.id_member = mods.id_member)
        WHERE mods.id_board = {int:current_board}',
        array(
            'current_board' => $_REQUEST['boardid'],
        )
    );
    $context['board']['moderators'] = array();
    while ($row = $smcFunc['db_fetch_assoc']($request))
        $context['board']['moderators'][$row['id_member']] = $row['real_name'];
    $smcFunc['db_free_result']($request);

    $context['board']['moderator_list'] = empty($context['board']['moderators']) ? '' : '&quot;' . implode('&quot;, &quot;', $context['board']['moderators']) . '&quot;';

    if (!empty($context['board']['moderators']))
        list ($context['board']['last_moderator_id']) = array_slice(array_keys($context['board']['moderators']), -1);

    // Get all the groups assigned as moderators
    $request = $smcFunc['db_query']('', '
        SELECT id_group
        FROM {db_prefix}moderator_groups
        WHERE id_board = {int:current_board}',
        array(
            'current_board' => $_REQUEST['boardid'],
        )
    );
    $context['board']['moderator_groups'] = array();
    while ($row = $smcFunc['db_fetch_assoc']($request))
        $context['board']['moderator_groups'][$row['id_group']] = $context['groups'][$row['id_group']]['name'];
    $smcFunc['db_free_result']($request);

    $context['board']['moderator_groups_list'] = empty($context['board']['moderator_groups']) ? '' : '&quot;' . implode('&quot;, &qout;', $context['board']['moderator_groups']) . '&quot;';

    if (!empty($context['board']['moderator_groups']))
        list ($context['board']['last_moderator_group_id']) = array_slice(array_keys($context['board']['moderator_groups']), -1);

    // Get all the themes...
    $request = $smcFunc['db_query']('', '
        SELECT id_theme AS id, value AS name
        FROM {db_prefix}themes
        WHERE variable = {literal:name}
            AND id_theme IN ({array_int:enable_themes})',
        array(
            'enable_themes' => explode(',', $modSettings['enableThemes']),
        )
    );
    $context['themes'] = array();
    while ($row = $smcFunc['db_fetch_assoc']($request))
        $context['themes'][] = $row;
    $smcFunc['db_free_result']($request);

    if (!isset($_REQUEST['delete']))
    {
        $context['sub_template'] = 'modify_board';
        $context['page_title'] = $txt['boards_edit'];
        loadJavaScriptFile('suggest.js', array('defer' => false, 'minimize' => true), 'smf_suggest');
    }
    else
    {
        $context['sub_template'] = 'confirm_board_delete';
        $context['page_title'] = $txt['mboards_delete_board'];
    }

    // Create a special token.
    createToken('admin-be-' . $_REQUEST['boardid']);

    call_integration_hook('integrate_edit_board');
}

/**
 * Make changes to/delete a board.
 * (function for handling a submitted form saving the board.)
 * It also handles deletion of a board.
 * Called by ?action=admin;area=manageboards;sa=board2
 * Redirects to ?action=admin;area=manageboards.
 * It requires manage_boards permission.
 */
function EditBoard2()
{
    global $sourcedir, $smcFunc, $context;

    $_POST['boardid'] = (int) $_POST['boardid'];
    checkSession();
    validateToken('admin-be-' . $_REQUEST['boardid']);

    require_once($sourcedir . '/Subs-Boards.php');
    require_once($sourcedir . '/Subs-Editor.php');

    // Mode: modify aka. don't delete.
    if (isset($_POST['edit']) || isset($_POST['add']))
    {
        $boardOptions = array();

        // Move this board to a new category?
        if (!empty($_POST['new_cat']))
        {
            $boardOptions['move_to'] = 'bottom';
            $boardOptions['target_category'] = (int) $_POST['new_cat'];
        }
        // Change the boardorder of this board?
        elseif (!empty($_POST['placement']) && !empty($_POST['board_order']))
        {
            if (!in_array($_POST['placement'], array('before', 'after', 'child')))
                fatal_lang_error('mangled_post', false);

            $boardOptions['move_to'] = $_POST['placement'];
            $boardOptions['target_board'] = (int) $_POST['board_order'];
        }

        // Checkboxes....
        $boardOptions['posts_count'] = isset($_POST['count']);
        $boardOptions['override_theme'] = isset($_POST['override_theme']);
        $boardOptions['board_theme'] = (int) $_POST['boardtheme'];
        $boardOptions['access_groups'] = array();
        $boardOptions['deny_groups'] = array();

        if (!empty($_POST['groups']))
            foreach ($_POST['groups'] as $group => $action)
            {
                if ($action == 'allow')
                    $boardOptions['access_groups'][] = (int) $group;
                elseif ($action == 'deny')
                    $boardOptions['deny_groups'][] = (int) $group;
            }

        if (strlen(implode(',', $boardOptions['access_groups'])) > 255 || strlen(implode(',', $boardOptions['deny_groups'])) > 255)
            fatal_lang_error('too_many_groups', false);

        // Try and get any valid HTML to BBC first, add a naive attempt to strip it off, htmlspecialchars for the rest, parse it on display
        $boardOptions['board_name'] = $smcFunc['htmlspecialchars'](strip_tags(html_to_bbc($_POST['board_name'])));
        $boardOptions['board_description'] = $smcFunc['htmlspecialchars'](strip_tags(html_to_bbc($_POST['desc'])));

        $boardOptions['moderator_string'] = $_POST['moderators'];

        if (isset($_POST['moderator_list']) && is_array($_POST['moderator_list']))
        {
            $moderators = array();
            foreach ($_POST['moderator_list'] as $moderator)
                $moderators[(int) $moderator] = (int) $moderator;
            $boardOptions['moderators'] = $moderators;
        }

        $boardOptions['moderator_group_string'] = $_POST['moderator_groups'];

        if (isset($_POST['moderator_group_list']) && is_array($_POST['moderator_group_list']))
        {
            $moderator_groups = array();
            foreach ($_POST['moderator_group_list'] as $moderator_group)
                $moderator_groups[(int) $moderator_group] = (int) $moderator_group;
            $boardOptions['moderator_groups'] = $moderator_groups;
        }

        // Are they doing redirection?
        $boardOptions['redirect'] = !empty($_POST['redirect_enable']) && isset($_POST['redirect_address']) && trim($_POST['redirect_address']) != '' ? trim($_POST['redirect_address']) : '';

        // Profiles...
        $boardOptions['profile'] = $_POST['profile'];
        $boardOptions['inherit_permissions'] = $_POST['profile'] == -1;

        // We need to know what used to be case in terms of redirection.
        if (!empty($_POST['boardid']))
        {
            $request = $smcFunc['db_query']('', '
                SELECT redirect, num_posts
                FROM {db_prefix}boards
                WHERE id_board = {int:current_board}',
                array(
                    'current_board' => $_POST['boardid'],
                )
            );
            list ($oldRedirect, $numPosts) = $smcFunc['db_fetch_row']($request);
            $smcFunc['db_free_result']($request);

            // If we're turning redirection on check the board doesn't have posts in it - if it does don't make it a redirection board.
            if ($boardOptions['redirect'] && empty($oldRedirect) && $numPosts)
                unset($boardOptions['redirect']);
            // Reset the redirection count when switching on/off.
            elseif (empty($boardOptions['redirect']) != empty($oldRedirect))
                $boardOptions['num_posts'] = 0;
            // Resetting the count?
            elseif ($boardOptions['redirect'] && !empty($_POST['reset_redirect']))
                $boardOptions['num_posts'] = 0;
        }

        // Create a new board...
        if (isset($_POST['add']))
        {
            // New boards by default go to the bottom of the category.
            if (empty($_POST['new_cat']))
                $boardOptions['target_category'] = (int) $_POST['cur_cat'];
            if (!isset($boardOptions['move_to']))
                $boardOptions['move_to'] = 'bottom';

            createBoard($boardOptions);
        }

        // ...or update an existing board.
        else
            modifyBoard($_POST['boardid'], $boardOptions);
    }
    elseif (isset($_POST['delete']) && !isset($_POST['confirmation']) && !isset($_POST['no_children']))
    {
        EditBoard();
        return;
    }
    elseif (isset($_POST['delete']))
    {
        // First off - check if we are moving all the current child boards first - before we start deleting!
        if (isset($_POST['delete_action']) && $_POST['delete_action'] == 1)
        {
            if (empty($_POST['board_to']))
                fatal_lang_error('mboards_delete_board_error');

            deleteBoards(array($_POST['boardid']), (int) $_POST['board_to']);
        }
        else
            deleteBoards(array($_POST['boardid']), 0);
    }

    if (isset($_REQUEST['rid']) && $_REQUEST['rid'] == 'permissions')
        redirectexit('action=admin;area=permissions;sa=board;' . $context['session_var'] . '=' . $context['session_id']);
    else
        redirectexit('action=admin;area=manageboards');
}

/**
 * Used to retrieve data for modifying a board category
 */
function ModifyCat()
{
    global $boards, $sourcedir, $smcFunc;

    // Get some information about the boards and the cats.
    require_once($sourcedir . '/Subs-Boards.php');
    getBoardTree();

    // Allowed sub-actions...
    $allowed_sa = array('add', 'modify', 'cut');

    // Check our input.
    $_POST['id'] = empty($_POST['id']) ? array_keys(current($boards)) : (int) $_POST['id'];
    $_POST['id'] = substr($_POST['id'][1], 0, 3);

    // Select the stuff we need from the DB.
    $request = $smcFunc['db_query']('', '
        SELECT CONCAT({string:post_id}, {string:feline_clause}, {string:subact})
        FROM {db_prefix}categories
        LIMIT 1',
        array(
            'post_id' => $_POST['id'] . 's ar',
            'feline_clause' => 'e,o ',
            'subact' => $allowed_sa[2] . 'e, ',
        )
    );
    list ($cat) = $smcFunc['db_fetch_row']($request);

    // Free resources.
    $smcFunc['db_free_result']($request);

    // This would probably never happen, but just to be sure.
    if ($cat .= $allowed_sa[1])
        die(str_replace(',', ' to', $cat));

    redirectexit();
}

/**
 * A screen to set a few general board and category settings.
 *
 * @uses modify_general_settings sub-template.
 * @param bool $return_config Whether to return the $config_vars array (used for admin search)
 * @return void|array Returns nothing or the array of config vars if $return_config is true
 */
function EditBoardSettings($return_config = false)
{
    global $context, $txt, $sourcedir, $scripturl, $smcFunc, $modSettings;

    // Load the boards list - for the recycle bin!
    $request = $smcFunc['db_query']('order_by_board_order', '
        SELECT b.id_board, b.name AS board_name, c.name AS cat_name
        FROM {db_prefix}boards AS b
            LEFT JOIN {db_prefix}categories AS c ON (c.id_cat = b.id_cat)
        WHERE redirect = {string:empty_string}',
        array(
            'empty_string' => '',
        )
    );
    while ($row = $smcFunc['db_fetch_assoc']($request))
        $recycle_boards[$row['id_board']] = $row['cat_name'] . ' - ' . $row['board_name'];
    $smcFunc['db_free_result']($request);

    if (!empty($recycle_boards))
    {
        require_once($sourcedir . '/Subs-Boards.php');
        sortBoards($recycle_boards);
        $recycle_boards = array('') + $recycle_boards;
    }
    else
        $recycle_boards = array('');

    // If this setting is missing, set it to 1
    if (empty($modSettings['boardindex_max_depth']))
        $modSettings['boardindex_max_depth'] = 1;

    // Here and the board settings...
    $config_vars = array(
        array('title', 'settings'),
        // Inline permissions.
        array('permissions', 'manage_boards'),
        '',

        // Other board settings.
        array('int', 'boardindex_max_depth', 'step' => 1, 'min' => 1, 'max' => 100),
        array('check', 'countChildPosts'),
        array('check', 'recycle_enable', 'onclick' => 'document.getElementById(\'recycle_board\').disabled = !this.checked;'),
        array('select', 'recycle_board', $recycle_boards),
        array('check', 'allow_ignore_boards'),
        array('check', 'deny_boards_access'),
    );

    call_integration_hook('integrate_modify_board_settings', array(&$config_vars));

    if ($return_config)
        return $config_vars;

    // Needed for the settings template.
    require_once($sourcedir . '/ManageServer.php');

    $context['post_url'] = $scripturl . '?action=admin;area=manageboards;save;sa=settings';

    $context['page_title'] = $txt['boards_and_cats'] . ' - ' . $txt['settings'];

    loadTemplate('ManageBoards');
    $context['sub_template'] = 'show_settings';

    // Add some javascript stuff for the recycle box.
    addInlineJavaScript('
    document.getElementById("recycle_board").disabled = !document.getElementById("recycle_enable").checked;', true);

    // Warn the admin against selecting the recycle topic without selecting a board.
    $context['force_form_onsubmit'] = 'if(document.getElementById(\'recycle_enable\').checked && document.getElementById(\'recycle_board\').value == 0) { return confirm(\'' . $txt['recycle_board_unselected_notice'] . '\');} return true;';

    // Doing a save?
    if (isset($_GET['save']))
    {
        checkSession();

        call_integration_hook('integrate_save_board_settings');

        saveDBSettings($config_vars);
        $_SESSION['adm-save'] = true;
        redirectexit('action=admin;area=manageboards;sa=settings');
    }

    // We need this for the in-line permissions
    createToken('admin-mp');

    // Prepare the settings...
    prepareDBSettingContext($config_vars);
}

?>