<?php

/**
 * @package tikiwiki
 */

// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
//
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id$

/****************************************************************************
 ** TikiWiki Forum Import Tool v1.00                            12/01/2007 **
 ****************************************************************************
 ** Written by Mike Kerr (kerrnel22)
 **
 ** This script is for importing the contents of a TikiWiki forum:
 **    - from the same database
 **    - from a different database
 **    - from a different server
 **    - from an SQL dump
 **
 ** You must have 'tiki_forum_admin' permissions to run this script, due to
 ** the sensitive and invasive nature of this activity.  Forum moderators do
 ** not count.
 **
 ** This tool will not import attachments, or retain state information such
 ** as read counters or posts waiting on moderator approval.
 **
 ** The target forum must already exist on your Tiki installation.  The forum
 ** you select to move will not be recreated.  Only the contents will be
 ** copied.
 **
 ** Roadmap
 ** -------
 ** v1.1 - Allow to migrate phpBB2 (perhaps other forum types) to Tiki forums.
 **
 ** STATE OF THE CODE
 ** -----------------
 ** - Currently only works when importing Tiki forums from an SQL file.
 ** - SQL file dump must be set to escape single quotes with \' instead of ''
 ** - If you get timeout problems, you may need to increase your php.ini
 **   'max_execution_time' to something like 120 or more, depending on the
 **   size of your SQL file.  120 is good for a file around 20Mb.
 **
 ****************************************************************************/

// Initialization

$inputConfiguration = [
    [ 'staticKeyFilters' =>
        [
            'step1' => 'word',
            'step2' => 'word',
            'step3' => 'word',
            'import' => 'word',
            'fForumid' => 'digits',
            'tForumid' => 'digits',
            'ftype' => 'word',
            'prefix' => 'word',
            'server' => 'striptags',
        ]
    ]
];

require_once('tiki-setup.php');

$access->check_feature('feature_forums');
$access->check_permission('tiki_p_admin_forum');

include_once('lib/importerlib.php');
$import = new Importer($dbTiki);

global $prefs;

// Which iteration of the process are we in?
// Step 0 - Select Import Method
// Step 1 - Test Import Method Succeeded
// Step 2 - Select Forum to Import From/To
// Step 3 - Migration Complete - Do Again?
if (isset($_POST["step4"])) {
} elseif (isset($_POST["step3"])) {
    if ($_POST["import"] == 'same') {           // Same db and server
    } elseif ($_POST["import"] == 'other') {    // Different db & server
    } elseif ($_POST["import"] == 'sql') {      // Import from SQL file
        if (! $_POST["fForumid"] || ! $_POST["tForumid"]) {
            $smarty->assign('failed', 'true');
        } else {
            $moo = $import->importSQLForum(
                $_POST["ftype"],
                $_POST["prefix"],
                $_POST["server"],
                $_POST["fForumid"],
                $_POST["tForumid"]
            );
            $smarty->assign('failed', 'false');
        }
    } else {                                        // Error
        $smarty->assign('msg', tra("Form error - no import method selected for some reason."));
        $smarty->display("error.tpl");
        die;
    }

    $smarty->assign('step', 'import');
    $smarty->assign('iMethod', $_POST["import"]);
    $smarty->assign('fi_type', $_POST["ftype"]);
    $smarty->assign('fi_prefix', $_POST["prefix"]);
    $smarty->assign('server', $_POST["server"]);
    $smarty->assign('tomove', $moo);
    $smarty->assign('fF', $_POST["fForumid"]);
    $smarty->assign('tF', $_POST["tForumid"]);
} elseif (isset($_POST["step2"])) {
    if ($_POST["import"] == 'same') {           // Same db and server
    } elseif ($_POST["import"] == 'other') {    // Different db & server
    } elseif ($_POST["import"] == 'sql') {      // Import from SQL file
        //read sql file to create forum list
        $sqlForums = $import->parseForumList(
            $_POST["ftype"],
            $_POST["prefix"],
            $_POST["server"]
        );
        $smarty->assign('fromForums', $sqlForums);
        if (count($sqlForums) == 0) {
                $smarty->assign('noforumsF', 'true');
        } else {
                $smarty->assign('noforumsF', 'false');
        }
    } else {                                        // Error
        $smarty->assign('msg', tra("Form error - no import method selected for some reason."));
        $smarty->display("error.tpl");
        die;
    }

    $toForums = $import->list_forums(0, -1, 'created_asc', '');
    $smarty->assign_by_ref('toForums', $toForums["data"]);
    if (count($toForums["data"]) == 0) {
            $smarty->assign('noforumsT', 'true');
    } else {
            $smarty->assign('noforumsT', 'false');
    }

    $smarty->assign('step', 'select');
    $smarty->assign('iMethod', $_POST["import"]);
    $smarty->assign('fi_type', $_POST["ftype"]);
    $smarty->assign('fi_prefix', $_POST["prefix"]);
    $smarty->assign('server', $_POST["server"]);
} elseif (isset($_POST["step1"])) {
    if (! isset($_POST["import"])) {
        $smarty->assign('msg', tra("Form error - no import method selected for some reason."));
        $smarty->display("error.tpl");
        die;
    } elseif ($_POST["import"] == 'same') {     // Same db and server
    } elseif ($_POST["import"] == 'other') {    // Different db & server
    } elseif ($_POST["import"] == 'sql') {      // Import from SQL file
        /* Import from the SQL file will only look in $tikiroot/$tmpDir or
         * $tikiroot/img/wiki_up for the speficied file.  Any path is
         * stripped off the filename input by the user.  $tmpDir overrides
         * the wiki_up directory.  If the file exists, it then gets
         * parsed to strip out just the SQL needed for the type of system
         * being imported.  The relevant data is stored in /tmp in two
         * temporary flatfiles.
         */
        if (! isset($_REQUEST["server"])) {
            $smarty->assign('msg', tra("Form error - no server-side filename entered for selected import method."));
            $smarty->display("error.tpl");
            die;
        }

        $server = basename($_REQUEST["server"]);
        if ($server == '') {
            $smarty->assign('passed', 'false');
            $smarty->assign('filecheck', '');
            $smarty->assign('server', '');
        } elseif (file_exists($prefs['tmpDir'] . '/' . $server)) {
            $smarty->assign('filecheck', $prefs['tmpDir']);
            $smarty->assign('passed', 'true');
            $smarty->assign('server', $prefs['tmpDir'] . '/' . $server);
        } elseif (file_exists('img/wiki_up/' . $server)) {
            $smarty->assign('filecheck', "img/wiki_up");
            $smarty->assign('passed', 'true');
            $smarty->assign('server', "img/wiki_up" . $server);
        } else {
            $smarty->assign('filecheck', $prefs['tmpDir']);
            $smarty->assign('passed', 'false');
        }
    } else {    // Error
        $smarty->assign('msg', tra("Form error - no import method selected for some reason."));
        $smarty->display("error.tpl");
        die;
    }


    $smarty->assign('step', 'test');
    $smarty->assign('iMethod', $_POST["import"]);
    $smarty->assign('fi_type', $_POST["ftype"]);
    $smarty->assign('fi_prefix', $_POST["prefix"]);
} else {
    $smarty->assign('step', 'new');
    $smarty->assign('tmpdir', isset($prefs['tmpDir']) ? $prefs['tmpDir'] : '');
    $smarty->assign('fi_types', $import->fi_types);
    $smarty->assign('fi_prefixes', $import->fi_prefixes);
}

// disallow robots to index page:
$smarty->assign('metatag_robots', 'NOINDEX, NOFOLLOW');

// Display the page
$smarty->assign('mid', 'tiki-forum_import.tpl');
$smarty->display("tiki.tpl");

exit;