source: admin/update.php @ 3874:ab8368569446

<?php
/**
 * @package Dotclear
 * @subpackage Backend
 *
 * @copyright Olivier Meunier & Association Dotclear
 * @copyright GPL-2.0-only
 */

require dirname(__FILE__) . '/../inc/admin/prepend.php';

if (!defined('DC_BACKUP_PATH')) {
    define('DC_BACKUP_PATH', DC_ROOT);
}

dcPage::checkSuper();

if (!is_readable(DC_DIGESTS)) {
    dcPage::open(__('Dotclear update'));
    echo '<h2>Access denied</h2>';
    dcPage::close();
    exit;
}

$updater      = new dcUpdate(DC_UPDATE_URL, 'dotclear', DC_UPDATE_VERSION, DC_TPL_CACHE . '/versions');
$new_v        = $updater->check(DC_VERSION, !empty($_GET['nocache']));
$zip_file     = $new_v ? DC_BACKUP_PATH . '/' . basename($updater->getFileURL()) : '';
$version_info = $new_v ? $updater->getInfoURL() : '';

# Hide "update me" message
if (!empty($_GET['hide_msg'])) {
    $updater->setNotify(false);
    http::redirect('index.php');
}

$p_url = 'update.php';

$step = isset($_GET['step']) ? $_GET['step'] : '';
$step = in_array($step, ['check', 'download', 'backup', 'unzip']) ? $step : '';

$default_tab = !empty($_GET['tab']) ? html::escapeHTML($_GET['tab']) : 'update';
if (!empty($_POST['backup_file'])) {
    $default_tab = 'files';
}

$archives = [];
foreach (files::scanDir(DC_BACKUP_PATH) as $v) {
    if (preg_match('/backup-([0-9A-Za-z\.-]+).zip/', $v)) {
        $archives[] = $v;
    }
}
if (!empty($archives)) {
    usort($archives, "version_compare");
} else {
    $default_tab = 'update';
}

# Revert or delete backup file
if (!empty($_POST['backup_file']) && in_array($_POST['backup_file'], $archives)) {
    $b_file = $_POST['backup_file'];

    try
    {
        if (!empty($_POST['b_del'])) {
            if (!@unlink(DC_BACKUP_PATH . '/' . $b_file)) {
                throw new Exception(sprintf(__('Unable to delete file %s'), html::escapeHTML($b_file)));
            }
            http::redirect($p_url . '?tab=files');
        }

        if (!empty($_POST['b_revert'])) {
            $zip = new fileUnzip(DC_BACKUP_PATH . '/' . $b_file);
            $zip->unzipAll(DC_BACKUP_PATH . '/');
            @unlink(DC_BACKUP_PATH . '/' . $b_file);
            http::redirect($p_url . '?tab=files');
        }
    } catch (Exception $e) {
        $core->error->add($e->getMessage());
    }
}

# Upgrade process
if ($new_v && $step) {
    try
    {
        $updater->setForcedFiles('inc/digests');

        switch ($step) {
            case 'check':
                $updater->checkIntegrity(DC_ROOT . '/inc/digests', DC_ROOT);
                http::redirect($p_url . '?step=download');
                break;
            case 'download':
                $updater->download($zip_file);
                if (!$updater->checkDownload($zip_file)) {
                    throw new Exception(
                        sprintf(__('Downloaded Dotclear archive seems to be corrupted. ' .
                            'Try <a %s>download it</a> again.'), 'href="' . $p_url . '?step=download"') .
                        ' ' .
                        __('If this problem persists try to ' .
                            '<a href="http://dotclear.org/download">update manually</a>.')
                    );
                }
                http::redirect($p_url . '?step=backup');
                break;
            case 'backup':
                $updater->backup(
                    $zip_file, 'dotclear/inc/digests',
                    DC_ROOT, DC_ROOT . '/inc/digests',
                    DC_BACKUP_PATH . '/backup-' . DC_VERSION . '.zip'
                );
                http::redirect($p_url . '?step=unzip');
                break;
            case 'unzip':
                $updater->performUpgrade(
                    $zip_file, 'dotclear/inc/digests', 'dotclear',
                    DC_ROOT, DC_ROOT . '/inc/digests'
                );
                break;
        }
    } catch (Exception $e) {
        $msg = $e->getMessage();

        if ($e->getCode() == dcUpdate::ERR_FILES_CHANGED) {
            $msg =
                __('The following files of your Dotclear installation ' .
                'have been modified so we won\'t try to update your installation. ' .
                'Please try to <a href="http://dotclear.org/download">update manually</a>.');
        } elseif ($e->getCode() == dcUpdate::ERR_FILES_UNREADABLE) {
            $msg =
                sprintf(__('The following files of your Dotclear installation are not readable. ' .
                'Please fix this or try to make a backup file named %s manually.'),
                '<strong>backup-' . DC_VERSION . '.zip</strong>');
        } elseif ($e->getCode() == dcUpdate::ERR_FILES_UNWRITALBE) {
            $msg =
                __('The following files of your Dotclear installation cannot be written. ' .
                'Please fix this or try to <a href="http://dotclear.org/download">update manually</a>.');
        }

        if (isset($e->bad_files)) {
            $msg .=
            '<ul><li><strong>' .
            implode('</strong></li><li><strong>', $e->bad_files) .
                '</strong></li></ul>';
        }

        $core->error->add($msg);

        $core->callBehavior('adminDCUpdateException', $e);
    }
}

/* DISPLAY Main page
-------------------------------------------------------- */
dcPage::open(__('Dotclear update'),
    (!$step ?
        dcPage::jsPageTabs($default_tab) .
        dcPage::jsLoad('js/_update.js')
        : ''),
    dcPage::breadcrumb(
        [
            __('System')          => '',
            __('Dotclear update') => ''
        ])
);

if (!$core->error->flag()) {
    if (!empty($_GET['nocache'])) {
        dcPage::success(__('Manual checking of update done successfully.'));
    }
}

if (!$step) {
    echo '<div class="multi-part" id="update" title="' . __('Dotclear update') . '">';
    if (empty($new_v)) {
        echo '<p><strong>' . __('No newer Dotclear version available.') . '</strong></p>' .
        '<form action="' . $p_url . '" method="get">' .
        '<p><input type="hidden" name="nocache" value="1" />' .
        '<input type="submit" value="' . __('Force checking update Dotclear') . '" /></p>' .
            '</form>';
    } else {
        echo
        '<p class="static-msg">' . sprintf(__('Dotclear %s is available.'), $new_v) .
            ($version_info ? ' <a href="' . $version_info . '" class="outgoing" title="' . __('Information about this version') . '">(' .
            __('Information about this version') . ')&nbsp;<img src="images/outgoing-link.svg" alt=""/></a>' : '') .
            '</p>';
        if (version_compare(phpversion(), $updater->getPHPVersion()) < 0) {
            echo
            '<p class="warning-msg">' . sprintf(__('PHP version is %s (%s or earlier needed).'), phpversion(), $updater->getPHPVersion()) . '</p>';
        } else {
            echo
            '<p>' . __('To upgrade your Dotclear installation simply click on the following button. ' .
                'A backup file of your current installation will be created in your root directory.') . '</p>' .
            '<form action="' . $p_url . '" method="get">' .
            '<p><input type="hidden" name="step" value="check" />' .
            '<input type="submit" value="' . __('Update Dotclear') . '" /></p>' .
                '</form>';
        }
    }
    echo '</div>';

    if (!empty($archives)) {
        echo '<div class="multi-part" id="files" title="' . __('Manage backup files') . '">';

        echo
        '<h3>' . __('Update backup files') . '</h3>' .
        '<p>' . __('The following files are backups of previously updates. ' .
            'You can revert your previous installation or delete theses files.') . '</p>';

        echo '<form action="' . $p_url . '" method="post">';
        foreach ($archives as $v) {
            echo
            '<p><label class="classic">' . form::radio(['backup_file'], html::escapeHTML($v)) . ' ' .
            html::escapeHTML($v) . '</label></p>';
        }

        echo
        '<p><strong>' . __('Please note that reverting your Dotclear version may have some ' .
            'unwanted side-effects. Consider reverting only if you experience strong issues with this new version.') . '</strong> ' .
        sprintf(__('You should not revert to version prior to last one (%s).'), end($archives)) .
        '</p>' .
        '<p><input type="submit" class="delete" name="b_del" value="' . __('Delete selected file') . '" /> ' .
        '<input type="submit" name="b_revert" value="' . __('Revert to selected file') . '" />' .
        $core->formNonce() . '</p>' .
            '</form>';

        echo '</div>';
    }
} elseif ($step == 'unzip' && !$core->error->flag()) {
    echo
    '<p class="message">' .
    __("Congratulations, you're one click away from the end of the update.") .
    ' <strong><a href="index.php?logout=1">' . __('Finish the update.') . '</a></strong>' .
        '</p>';
}

dcPage::helpBlock('core_update');
dcPage::close();