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<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
use phpbb\exception\exception_interface;
use phpbb\exception\version_check_exception;
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
    exit;
}
class acp_extensions
{
    var $u_action;
    var $tpl_name;
    var $page_title;
    private $config;
    private $template;
    private $user;
    private $log;
    private $request;
    private $phpbb_dispatcher;
    private $ext_manager;
    private $phpbb_container;
    private $php_ini;
    function main()
    {
        // Start the page
        global $config, $user, $template, $request, $phpbb_extension_manager, $phpbb_root_path, $phpbb_log, $phpbb_dispatcher, $phpbb_container;
        $this->config = $config;
        $this->template = $template;
        $this->user = $user;
        $this->request = $request;
        $this->log = $phpbb_log;
        $this->phpbb_dispatcher = $phpbb_dispatcher;
        $this->ext_manager = $phpbb_extension_manager;
        $this->phpbb_container = $phpbb_container;
        $this->php_ini = $this->phpbb_container->get('php_ini');
        $this->user->add_lang(array('install', 'acp/extensions', 'migrator'));
        $this->page_title = 'ACP_EXTENSIONS';
        $action = $this->request->variable('action', 'list');
        $ext_name = $this->request->variable('ext_name', '');
        // What is a safe limit of execution time? Half the max execution time should be safe.
        $safe_time_limit = ($this->php_ini->getNumeric('max_execution_time') / 2);
        $start_time = time();
        // Cancel action
        if ($this->request->is_set_post('cancel'))
        {
            $action = 'list';
            $ext_name = '';
        }
        if (in_array($action, array('enable', 'disable', 'delete_data')) && !check_link_hash($this->request->variable('hash', ''), $action . '.' . $ext_name))
        {
            trigger_error('FORM_INVALID', E_USER_WARNING);
        }
        /**
        * Event to run a specific action on extension
        *
        * @event core.acp_extensions_run_action_before
        * @var    string    action            Action to run; if the event completes execution of the action, should be set to 'none'
        * @var    string    u_action        Url we are at
        * @var    string    ext_name        Extension name from request
        * @var    int        safe_time_limit    Safe limit of execution time
        * @var    int        start_time        Start time
        * @var    string    tpl_name        Template file to load
        * @since 3.1.11-RC1
        * @changed 3.2.1-RC1            Renamed to core.acp_extensions_run_action_before, added tpl_name, added action 'none'
        */
        $u_action = $this->u_action;
        $tpl_name = '';
        $vars = array('action', 'u_action', 'ext_name', 'safe_time_limit', 'start_time', 'tpl_name');
        extract($this->phpbb_dispatcher->trigger_event('core.acp_extensions_run_action_before', compact($vars)));
        // In case they have been updated by the event
        $this->u_action = $u_action;
        $this->tpl_name = $tpl_name;
        // If they've specified an extension, let's load the metadata manager and validate it.
        if ($ext_name)
        {
            $md_manager = $this->ext_manager->create_extension_metadata_manager($ext_name);
            try
            {
                $md_manager->get_metadata('all');
            }
            catch (exception_interface $e)
            {
                $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
                trigger_error($message . adm_back_link($this->u_action), E_USER_WARNING);
            }
        }
        // What are we doing?
        switch ($action)
        {
            case 'none':
                // Intentionally empty, used by extensions that execute additional actions in the prior event
                break;
            case 'set_config_version_check_force_unstable':
                $force_unstable = $this->request->variable('force_unstable', false);
                if ($force_unstable)
                {
                    $s_hidden_fields = build_hidden_fields(array(
                        'force_unstable'    => $force_unstable,
                    ));
                    confirm_box(false, $this->user->lang('EXTENSION_FORCE_UNSTABLE_CONFIRM'), $s_hidden_fields);
                }
                else
                {
                    $this->config->set('extension_force_unstable', false);
                    trigger_error($this->user->lang['CONFIG_UPDATED'] . adm_back_link($this->u_action));
                }
                break;
            case 'list':
            default:
                if (confirm_box(true))
                {
                    $this->config->set('extension_force_unstable', true);
                    trigger_error($this->user->lang['CONFIG_UPDATED'] . adm_back_link($this->u_action));
                }
                $this->list_enabled_exts();
                $this->list_disabled_exts();
                $this->list_available_exts();
                $this->template->assign_vars(array(
                    'U_VERSIONCHECK_FORCE'     => $this->u_action . '&amp;action=list&amp;versioncheck_force=1',
                    'FORCE_UNSTABLE'        => $this->config['extension_force_unstable'],
                    'U_ACTION'                 => $this->u_action,
                ));
                $this->tpl_name = 'acp_ext_list';
            break;
            case 'enable_pre':
                try
                {
                    $md_manager->validate_enable();
                }
                catch (exception_interface $e)
                {
                    $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
                    trigger_error($message . adm_back_link($this->u_action), E_USER_WARNING);
                }
                $extension = $this->ext_manager->get_extension($ext_name);
                if (!$extension->is_enableable())
                {
                    trigger_error($this->user->lang['EXTENSION_NOT_ENABLEABLE'] . adm_back_link($this->u_action), E_USER_WARNING);
                }
                if ($this->ext_manager->is_enabled($ext_name))
                {
                    redirect($this->u_action);
                }
                $this->tpl_name = 'acp_ext_enable';
                $this->template->assign_vars(array(
                    'PRE'                => true,
                    'L_CONFIRM_MESSAGE'    => $this->user->lang('EXTENSION_ENABLE_CONFIRM', $md_manager->get_metadata('display-name')),
                    'U_ENABLE'            => $this->u_action . '&amp;action=enable&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('enable.' . $ext_name),
                ));
            break;
            case 'enable':
                try
                {
                    $md_manager->validate_enable();
                }
                catch (exception_interface $e)
                {
                    $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
                    trigger_error($message . adm_back_link($this->u_action), E_USER_WARNING);
                }
                $extension = $this->ext_manager->get_extension($ext_name);
                if (!$extension->is_enableable())
                {
                    trigger_error($this->user->lang['EXTENSION_NOT_ENABLEABLE'] . adm_back_link($this->u_action), E_USER_WARNING);
                }
                try
                {
                    while ($this->ext_manager->enable_step($ext_name))
                    {
                        // Are we approaching the time limit? If so we want to pause the update and continue after refreshing
                        if ((time() - $start_time) >= $safe_time_limit)
                        {
                            $this->template->assign_var('S_NEXT_STEP', true);
                            meta_refresh(0, $this->u_action . '&amp;action=enable&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('enable.' . $ext_name));
                        }
                    }
                    // Update custom style for admin area
                    $this->template->set_custom_style(array(
                        array(
                            'name'         => 'adm',
                            'ext_path'     => 'adm/style/',
                        ),
                    ), array($phpbb_root_path . 'adm/style'));
                    $this->log->add('admin', $this->user->data['user_id'], $this->user->ip, 'LOG_EXT_ENABLE', time(), array($ext_name));
                }
                catch (\phpbb\db\migration\exception $e)
                {
                    $this->template->assign_var('MIGRATOR_ERROR', $e->getLocalisedMessage($this->user));
                }
                $this->tpl_name = 'acp_ext_enable';
                $this->template->assign_vars(array(
                    'U_RETURN'        => $this->u_action . '&amp;action=list',
                ));
            break;
            case 'disable_pre':
                if (!$this->ext_manager->is_enabled($ext_name))
                {
                    redirect($this->u_action);
                }
                $this->tpl_name = 'acp_ext_disable';
                $this->template->assign_vars(array(
                    'PRE'                => true,
                    'L_CONFIRM_MESSAGE'    => $this->user->lang('EXTENSION_DISABLE_CONFIRM', $md_manager->get_metadata('display-name')),
                    'U_DISABLE'            => $this->u_action . '&amp;action=disable&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('disable.' . $ext_name),
                ));
            break;
            case 'disable':
                if (!$this->ext_manager->is_enabled($ext_name))
                {
                    redirect($this->u_action);
                }
                while ($this->ext_manager->disable_step($ext_name))
                {
                    // Are we approaching the time limit? If so we want to pause the update and continue after refreshing
                    if ((time() - $start_time) >= $safe_time_limit)
                    {
                        $this->template->assign_var('S_NEXT_STEP', true);
                        meta_refresh(0, $this->u_action . '&amp;action=disable&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('disable.' . $ext_name));
                    }
                }
                $this->log->add('admin', $this->user->data['user_id'], $this->user->ip, 'LOG_EXT_DISABLE', time(), array($ext_name));
                $this->tpl_name = 'acp_ext_disable';
                $this->template->assign_vars(array(
                    'U_RETURN'    => $this->u_action . '&amp;action=list',
                ));
            break;
            case 'delete_data_pre':
                if ($this->ext_manager->is_enabled($ext_name))
                {
                    redirect($this->u_action);
                }
                $this->tpl_name = 'acp_ext_delete_data';
                $this->template->assign_vars(array(
                    'PRE'                => true,
                    'L_CONFIRM_MESSAGE'    => $this->user->lang('EXTENSION_DELETE_DATA_CONFIRM', $md_manager->get_metadata('display-name')),
                    'U_PURGE'            => $this->u_action . '&amp;action=delete_data&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('delete_data.' . $ext_name),
                ));
            break;
            case 'delete_data':
                if ($this->ext_manager->is_enabled($ext_name))
                {
                    redirect($this->u_action);
                }
                try
                {
                    while ($this->ext_manager->purge_step($ext_name))
                    {
                        // Are we approaching the time limit? If so we want to pause the update and continue after refreshing
                        if ((time() - $start_time) >= $safe_time_limit)
                        {
                            $this->template->assign_var('S_NEXT_STEP', true);
                            meta_refresh(0, $this->u_action . '&amp;action=delete_data&amp;ext_name=' . urlencode($ext_name) . '&amp;hash=' . generate_link_hash('delete_data.' . $ext_name));
                        }
                    }
                    $this->log->add('admin', $this->user->data['user_id'], $this->user->ip, 'LOG_EXT_PURGE', time(), array($ext_name));
                }
                catch (\phpbb\db\migration\exception $e)
                {
                    $this->template->assign_var('MIGRATOR_ERROR', $e->getLocalisedMessage($this->user));
                }
                $this->tpl_name = 'acp_ext_delete_data';
                $this->template->assign_vars(array(
                    'U_RETURN'    => $this->u_action . '&amp;action=list',
                ));
            break;
            case 'details':
                // Output it to the template
                $meta = $md_manager->get_metadata('all');
                $this->output_metadata_to_template($meta);
                if (isset($meta['extra']['version-check']))
                {
                    try
                    {
                        $updates_available = $this->ext_manager->version_check($md_manager, $this->request->variable('versioncheck_force', false), false, $this->config['extension_force_unstable'] ? 'unstable' : null);
                        $this->template->assign_vars(array(
                            'S_UP_TO_DATE' => empty($updates_available),
                            'UP_TO_DATE_MSG' => $this->user->lang(empty($updates_available) ? 'UP_TO_DATE' : 'NOT_UP_TO_DATE', $md_manager->get_metadata('display-name')),
                        ));
                        $this->template->assign_block_vars('updates_available', $updates_available);
                    }
                    catch (exception_interface $e)
                    {
                        $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
                        $this->template->assign_vars(array(
                            'S_VERSIONCHECK_FAIL' => true,
                            'VERSIONCHECK_FAIL_REASON' => ($e->getMessage() !== 'VERSIONCHECK_FAIL') ? $message : '',
                        ));
                    }
                    $this->template->assign_var('S_VERSIONCHECK', true);
                }
                else
                {
                    $this->template->assign_var('S_VERSIONCHECK', false);
                }
                $this->template->assign_vars(array(
                    'U_BACK'                => $this->u_action . '&amp;action=list',
                    'U_VERSIONCHECK_FORCE'    => $this->u_action . '&amp;action=details&amp;versioncheck_force=1&amp;ext_name=' . urlencode($md_manager->get_metadata('name')),
                ));
                $this->tpl_name = 'acp_ext_details';
            break;
        }
        /**
        * Event to run after a specific action on extension has completed
        *
        * @event core.acp_extensions_run_action_after
        * @var    string    action            Action that has run
        * @var    string    u_action        Url we are at
        * @var    string    ext_name        Extension name from request
        * @var    int        safe_time_limit    Safe limit of execution time
        * @var    int        start_time        Start time
        * @var    string    tpl_name        Template file to load
        * @since 3.1.11-RC1
        */
        $u_action = $this->u_action;
        $tpl_name = $this->tpl_name;
        $vars = array('action', 'u_action', 'ext_name', 'safe_time_limit', 'start_time', 'tpl_name');
        extract($this->phpbb_dispatcher->trigger_event('core.acp_extensions_run_action_after', compact($vars)));
        // In case they have been updated by the event
        $this->u_action = $u_action;
        $this->tpl_name = $tpl_name;
    }
    /**
    * Lists all the enabled extensions and dumps to the template
    *
    * @return null
    */
    public function list_enabled_exts()
    {
        $enabled_extension_meta_data = array();
        foreach ($this->ext_manager->all_enabled() as $name => $location)
        {
            $md_manager = $this->ext_manager->create_extension_metadata_manager($name);
            try
            {
                $meta = $md_manager->get_metadata('all');
                $enabled_extension_meta_data[$name] = array(
                    'META_DISPLAY_NAME' => $md_manager->get_metadata('display-name'),
                    'META_VERSION' => $meta['version'],
                );
                if (isset($meta['extra']['version-check']))
                {
                    try
                    {
                        $force_update = $this->request->variable('versioncheck_force', false);
                        $updates = $this->ext_manager->version_check($md_manager, $force_update, !$force_update);
                        $enabled_extension_meta_data[$name]['S_UP_TO_DATE'] = empty($updates);
                        $enabled_extension_meta_data[$name]['S_VERSIONCHECK'] = true;
                        $enabled_extension_meta_data[$name]['U_VERSIONCHECK_FORCE'] = $this->u_action . '&amp;action=details&amp;versioncheck_force=1&amp;ext_name=' . urlencode($md_manager->get_metadata('name'));
                    }
                    catch (exception_interface $e)
                    {
                        // Ignore exceptions due to the version check
                    }
                }
                else
                {
                    $enabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
                }
            }
            catch (exception_interface $e)
            {
                $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
                $this->template->assign_block_vars('disabled', array(
                    'META_DISPLAY_NAME'        => $this->user->lang('EXTENSION_INVALID_LIST', $name, $message),
                    'S_VERSIONCHECK'        => false,
                ));
            }
            catch (\RuntimeException $e)
            {
                $enabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
            }
        }
        uasort($enabled_extension_meta_data, array($this, 'sort_extension_meta_data_table'));
        foreach ($enabled_extension_meta_data as $name => $block_vars)
        {
            $block_vars['NAME'] = $name;
            $block_vars['U_DETAILS'] = $this->u_action . '&amp;action=details&amp;ext_name=' . urlencode($name);
            $this->template->assign_block_vars('enabled', $block_vars);
            $this->output_actions('enabled', array(
                'DISABLE'        => $this->u_action . '&amp;action=disable_pre&amp;ext_name=' . urlencode($name),
            ));
        }
    }
    /**
    * Lists all the disabled extensions and dumps to the template
    *
    * @return null
    */
    public function list_disabled_exts()
    {
        $disabled_extension_meta_data = array();
        foreach ($this->ext_manager->all_disabled() as $name => $location)
        {
            $md_manager = $this->ext_manager->create_extension_metadata_manager($name);
            try
            {
                $meta = $md_manager->get_metadata('all');
                $disabled_extension_meta_data[$name] = array(
                    'META_DISPLAY_NAME' => $md_manager->get_metadata('display-name'),
                    'META_VERSION' => $meta['version'],
                );
                if (isset($meta['extra']['version-check']))
                {
                    $force_update = $this->request->variable('versioncheck_force', false);
                    $updates = $this->ext_manager->version_check($md_manager, $force_update, !$force_update);
                    $disabled_extension_meta_data[$name]['S_UP_TO_DATE'] = empty($updates);
                    $disabled_extension_meta_data[$name]['S_VERSIONCHECK'] = true;
                    $disabled_extension_meta_data[$name]['U_VERSIONCHECK_FORCE'] = $this->u_action . '&amp;action=details&amp;versioncheck_force=1&amp;ext_name=' . urlencode($md_manager->get_metadata('name'));
                }
                else
                {
                    $disabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
                }
            }
            catch (version_check_exception $e)
            {
                $disabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
            }
            catch (exception_interface $e)
            {
                $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
                $this->template->assign_block_vars('disabled', array(
                    'META_DISPLAY_NAME'        => $this->user->lang('EXTENSION_INVALID_LIST', $name, $message),
                    'S_VERSIONCHECK'        => false,
                ));
            }
            catch (\RuntimeException $e)
            {
                $disabled_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
            }
        }
        uasort($disabled_extension_meta_data, array($this, 'sort_extension_meta_data_table'));
        foreach ($disabled_extension_meta_data as $name => $block_vars)
        {
            $block_vars['NAME'] = $name;
            $block_vars['U_DETAILS'] = $this->u_action . '&amp;action=details&amp;ext_name=' . urlencode($name);
            $this->template->assign_block_vars('disabled', $block_vars);
            $this->output_actions('disabled', array(
                'ENABLE'        => $this->u_action . '&amp;action=enable_pre&amp;ext_name=' . urlencode($name),
                'DELETE_DATA'    => $this->u_action . '&amp;action=delete_data_pre&amp;ext_name=' . urlencode($name),
            ));
        }
    }
    /**
    * Lists all the available extensions and dumps to the template
    *
    * @return null
    */
    public function list_available_exts()
    {
        $uninstalled = array_diff_key($this->ext_manager->all_available(), $this->ext_manager->all_configured());
        $available_extension_meta_data = array();
        foreach ($uninstalled as $name => $location)
        {
            $md_manager = $this->ext_manager->create_extension_metadata_manager($name);
            try
            {
                $meta = $md_manager->get_metadata('all');
                $available_extension_meta_data[$name] = array(
                    'META_DISPLAY_NAME' => $md_manager->get_metadata('display-name'),
                    'META_VERSION' => $meta['version'],
                );
                if (isset($meta['extra']['version-check']))
                {
                    $force_update = $this->request->variable('versioncheck_force', false);
                    $updates = $this->ext_manager->version_check($md_manager, $force_update, !$force_update);
                    $available_extension_meta_data[$name]['S_UP_TO_DATE'] = empty($updates);
                    $available_extension_meta_data[$name]['S_VERSIONCHECK'] = true;
                    $available_extension_meta_data[$name]['U_VERSIONCHECK_FORCE'] = $this->u_action . '&amp;action=details&amp;versioncheck_force=1&amp;ext_name=' . urlencode($md_manager->get_metadata('name'));
                }
                else
                {
                    $available_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
                }
            }
            catch (version_check_exception $e)
            {
                $available_extension_meta_data[$name]['S_VERSIONCHECK'] = false;
            }
            catch (exception_interface $e)
            {
                $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
                $this->template->assign_block_vars('disabled', array(
                    'META_DISPLAY_NAME'        => $this->user->lang('EXTENSION_INVALID_LIST', $name, $message),
                    'S_VERSIONCHECK'        => false,
                ));
            }
        }
        uasort($available_extension_meta_data, array($this, 'sort_extension_meta_data_table'));
        foreach ($available_extension_meta_data as $name => $block_vars)
        {
            $block_vars['NAME'] = $name;
            $block_vars['U_DETAILS'] = $this->u_action . '&amp;action=details&amp;ext_name=' . urlencode($name);
            $this->template->assign_block_vars('disabled', $block_vars);
            $this->output_actions('disabled', array(
                'ENABLE'        => $this->u_action . '&amp;action=enable_pre&amp;ext_name=' . urlencode($name),
            ));
        }
    }
    /**
    * Output actions to a block
    *
    * @param string $block
    * @param array $actions
    */
    private function output_actions($block, $actions)
    {
        foreach ($actions as $lang => $url)
        {
            $this->template->assign_block_vars($block . '.actions', array(
                'L_ACTION'            => $this->user->lang('EXTENSION_' . $lang),
                'L_ACTION_EXPLAIN'    => (isset($this->user->lang['EXTENSION_' . $lang . '_EXPLAIN'])) ? $this->user->lang('EXTENSION_' . $lang . '_EXPLAIN') : '',
                'U_ACTION'            => $url,
            ));
        }
    }
    /**
    * Sort helper for the table containing the metadata about the extensions.
    */
    protected function sort_extension_meta_data_table($val1, $val2)
    {
        return strnatcasecmp($val1['META_DISPLAY_NAME'], $val2['META_DISPLAY_NAME']);
    }
    /**
    * Outputs extension metadata into the template
    *
    * @param array $metadata Array with all metadata for the extension
    * @return null
    */
    public function output_metadata_to_template($metadata)
    {
        $this->template->assign_vars(array(
            'META_NAME'            => $metadata['name'],
            'META_TYPE'            => $metadata['type'],
            'META_DESCRIPTION'    => (isset($metadata['description'])) ? $metadata['description'] : '',
            'META_HOMEPAGE'        => (isset($metadata['homepage'])) ? $metadata['homepage'] : '',
            'META_VERSION'        => $metadata['version'],
            'META_TIME'            => (isset($metadata['time'])) ? $metadata['time'] : '',
            'META_LICENSE'        => $metadata['license'],
            'META_REQUIRE_PHP'        => (isset($metadata['require']['php'])) ? $metadata['require']['php'] : '',
            'META_REQUIRE_PHP_FAIL'    => (isset($metadata['require']['php'])) ? false : true,
            'META_REQUIRE_PHPBB'        => (isset($metadata['extra']['soft-require']['phpbb/phpbb'])) ? $metadata['extra']['soft-require']['phpbb/phpbb'] : '',
            'META_REQUIRE_PHPBB_FAIL'    => (isset($metadata['extra']['soft-require']['phpbb/phpbb'])) ? false : true,
            'META_DISPLAY_NAME'    => (isset($metadata['extra']['display-name'])) ? $metadata['extra']['display-name'] : '',
        ));
        foreach ($metadata['authors'] as $author)
        {
            $this->template->assign_block_vars('meta_authors', array(
                'AUTHOR_NAME'        => $author['name'],
                'AUTHOR_EMAIL'        => (isset($author['email'])) ? $author['email'] : '',
                'AUTHOR_HOMEPAGE'    => (isset($author['homepage'])) ? $author['homepage'] : '',
                'AUTHOR_ROLE'        => (isset($author['role'])) ? $author['role'] : '',
            ));
        }
    }
}