132 lines
3.7 KiB
PHP
132 lines
3.7 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2010-2023, the Friendica project
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Render;
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use Friendica\Core\Hook;
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use Friendica\DI;
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use Friendica\Network\HTTPException\ServiceUnavailableException;
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use Friendica\Util\Strings;
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/**
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* Smarty implementation of the Friendica template abstraction
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*/
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final class FriendicaSmartyEngine extends TemplateEngine
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{
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static $name = 'smarty3';
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const FILE_PREFIX = 'file:';
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const STRING_PREFIX = 'string:';
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/** @var FriendicaSmarty */
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private $smarty;
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/**
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* @inheritDoc
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*/
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public function __construct(string $theme, array $theme_info)
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{
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$this->theme = $theme;
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$this->theme_info = $theme_info;
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$work_dir = DI::config()->get('smarty3', 'config_dir');
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$use_sub_dirs = DI::config()->get('smarty3', 'use_sub_dirs');
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$this->smarty = new FriendicaSmarty($this->theme, $this->theme_info, $work_dir, $use_sub_dirs);
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if (!is_writable($work_dir)) {
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$admin_message = DI::l10n()->t('The folder %s must be writable by webserver.', $work_dir);
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DI::logger()->critical($admin_message);
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$message = DI::app()->isSiteAdmin() ?
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$admin_message :
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DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator.');
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throw new ServiceUnavailableException($message);
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}
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}
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/**
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* @inheritDoc
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*/
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public function testInstall(array &$errors = null)
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{
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$this->smarty->testInstall($errors);
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}
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/**
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* @inheritDoc
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*/
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public function replaceMacros(string $template, array $vars): string
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{
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if (!Strings::startsWith($template, self::FILE_PREFIX)) {
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$template = self::STRING_PREFIX . $template;
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}
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// "middleware": inject variables into templates
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$arr = [
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'template' => basename($this->smarty->filename ?? ''),
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'vars' => $vars
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];
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Hook::callAll('template_vars', $arr);
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$vars = $arr['vars'];
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$this->smarty->clearAllAssign();
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foreach ($vars as $key => $value) {
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if ($key[0] === '$') {
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$key = substr($key, 1);
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}
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$this->smarty->assign($key, $value);
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}
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return $this->smarty->fetch($template);
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}
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/**
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* @inheritDoc
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*/
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public function getTemplateFile(string $file, string $subDir = '')
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{
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// Make sure $root ends with a slash /
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if ($subDir !== '' && substr($subDir, -1, 1) !== '/') {
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$subDir = $subDir . '/';
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}
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$root = DI::basePath() . '/' . $subDir;
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$filename = $this->smarty::SMARTY3_TEMPLATE_FOLDER . '/' . $file;
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if (file_exists("{$root}view/theme/$this->theme/$filename")) {
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$template_file = "{$root}view/theme/$this->theme/$filename";
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} elseif (!empty($this->theme_info['extends']) && file_exists(sprintf('%sview/theme/%s}/%s', $root, $this->theme_info['extends'], $filename))) {
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$template_file = sprintf('%sview/theme/%s}/%s', $root, $this->theme_info['extends'], $filename);
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} elseif (file_exists("{$root}/$filename")) {
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$template_file = "{$root}/$filename";
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} else {
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$template_file = "{$root}view/$filename";
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}
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$this->smarty->filename = $template_file;
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return self::FILE_PREFIX . $template_file;
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}
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}
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