1319 lines
47 KiB
PHP
1319 lines
47 KiB
PHP
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<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: liu21st <liu21st@gmail.com>
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// +----------------------------------------------------------------------
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namespace think;
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use think\exception\TemplateNotFoundException;
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/**
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* ThinkPHP分离出来的模板引擎
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* 支持XML标签和普通标签的模板解析
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* 编译型模板引擎 支持动态缓存
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*/
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class Template
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{
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protected $app;
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/**
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* 模板变量
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* @var array
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*/
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protected $data = [];
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/**
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* 模板配置参数
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* @var array
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*/
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protected $config = [
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'view_path' => '', // 模板路径
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'view_base' => '',
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'view_suffix' => 'html', // 默认模板文件后缀
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'view_depr' => DIRECTORY_SEPARATOR,
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'cache_suffix' => 'php', // 默认模板缓存后缀
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'tpl_deny_func_list' => 'echo,exit', // 模板引擎禁用函数
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'tpl_deny_php' => false, // 默认模板引擎是否禁用PHP原生代码
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'tpl_begin' => '{', // 模板引擎普通标签开始标记
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'tpl_end' => '}', // 模板引擎普通标签结束标记
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'strip_space' => false, // 是否去除模板文件里面的html空格与换行
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'tpl_cache' => true, // 是否开启模板编译缓存,设为false则每次都会重新编译
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'compile_type' => 'file', // 模板编译类型
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'cache_prefix' => '', // 模板缓存前缀标识，可以动态改变
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'cache_time' => 0, // 模板缓存有效期 0 为永久，(以数字为值，单位:秒)
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'layout_on' => false, // 布局模板开关
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'layout_name' => 'layout', // 布局模板入口文件
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'layout_item' => '{__CONTENT__}', // 布局模板的内容替换标识
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'taglib_begin' => '{', // 标签库标签开始标记
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'taglib_end' => '}', // 标签库标签结束标记
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'taglib_load' => true, // 是否使用内置标签库之外的其它标签库，默认自动检测
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'taglib_build_in' => 'cx', // 内置标签库名称(标签使用不必指定标签库名称),以逗号分隔 注意解析顺序
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'taglib_pre_load' => '', // 需要额外加载的标签库(须指定标签库名称)，多个以逗号分隔
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'display_cache' => false, // 模板渲染缓存
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'cache_id' => '', // 模板缓存ID
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'tpl_replace_string' => [],
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'tpl_var_identify' => 'array', // .语法变量识别，array|object|'', 为空时自动识别
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'default_filter' => 'htmlentities', // 默认过滤方法 用于普通标签输出
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];
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/**
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* 保留内容信息
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* @var array
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*/
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private $literal = [];
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/**
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* 模板包含信息
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* @var array
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*/
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private $includeFile = [];
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/**
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* 模板存储对象
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* @var object
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*/
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protected $storage;
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/**
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* 架构函数
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* @access public
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* @param array $config
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*/
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public function __construct(App $app, array $config = [])
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{
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$this->app = $app;
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$this->config['cache_path'] = $app->getRuntimePath() . 'temp/';
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$this->config = array_merge($this->config, $config);
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$this->config['taglib_begin_origin'] = $this->config['taglib_begin'];
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$this->config['taglib_end_origin'] = $this->config['taglib_end'];
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$this->config['taglib_begin'] = preg_quote($this->config['taglib_begin'], '/');
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$this->config['taglib_end'] = preg_quote($this->config['taglib_end'], '/');
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$this->config['tpl_begin'] = preg_quote($this->config['tpl_begin'], '/');
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$this->config['tpl_end'] = preg_quote($this->config['tpl_end'], '/');
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// 初始化模板编译存储器
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$type = $this->config['compile_type'] ? $this->config['compile_type'] : 'File';
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$this->storage = Loader::factory($type, '\\think\\template\\driver\\', null);
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}
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public static function __make(Config $config)
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{
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return new static($config->pull('template'));
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}
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/**
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* 模板变量赋值
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* @access public
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* @param mixed $name
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* @param mixed $value
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* @return void
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*/
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public function assign($name, $value = '')
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{
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if (is_array($name)) {
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$this->data = array_merge($this->data, $name);
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} else {
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$this->data[$name] = $value;
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}
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}
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/**
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* 模板引擎参数赋值
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* @access public
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* @param mixed $name
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* @param mixed $value
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*/
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public function __set($name, $value)
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{
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$this->config[$name] = $value;
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}
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/**
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* 模板引擎配置项
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* @access public
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* @param array|string $config
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* @return void|array
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*/
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public function config($config)
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{
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if (is_array($config)) {
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$this->config = array_merge($this->config, $config);
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} elseif (isset($this->config[$config])) {
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return $this->config[$config];
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}
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}
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/**
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* 模板变量获取
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* @access public
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* @param string $name 变量名
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* @return mixed
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*/
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public function get($name = '')
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{
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if ('' == $name) {
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return $this->data;
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}
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$data = $this->data;
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foreach (explode('.', $name) as $key => $val) {
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if (isset($data[$val])) {
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$data = $data[$val];
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} else {
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$data = null;
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break;
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}
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}
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return $data;
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}
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/**
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* 渲染模板文件
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* @access public
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* @param string $template 模板文件
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* @param array $vars 模板变量
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* @param array $config 模板参数
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* @return void
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*/
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public function fetch($template, $vars = [], $config = [])
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{
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if ($vars) {
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$this->data = $vars;
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}
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if ($config) {
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$this->config($config);
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}
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$cache = $this->app['cache'];
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if (!empty($this->config['cache_id']) && $this->config['display_cache']) {
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// 读取渲染缓存
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$cacheContent = $cache->get($this->config['cache_id']);
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if (false !== $cacheContent) {
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echo $cacheContent;
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return;
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}
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}
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$template = $this->parseTemplateFile($template);
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if ($template) {
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$cacheFile = $this->config['cache_path'] . $this->config['cache_prefix'] . md5($this->config['layout_on'] . $this->config['layout_name'] . $template) . '.' . ltrim($this->config['cache_suffix'], '.');
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if (!$this->checkCache($cacheFile)) {
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// 缓存无效 重新模板编译
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$content = file_get_contents($template);
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$this->compiler($content, $cacheFile);
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}
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// 页面缓存
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ob_start();
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ob_implicit_flush(0);
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// 读取编译存储
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$this->storage->read($cacheFile, $this->data);
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// 获取并清空缓存
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$content = ob_get_clean();
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if (!empty($this->config['cache_id']) && $this->config['display_cache']) {
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// 缓存页面输出
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$cache->set($this->config['cache_id'], $content, $this->config['cache_time']);
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}
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echo $content;
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}
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}
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/**
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* 渲染模板内容
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* @access public
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* @param string $content 模板内容
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* @param array $vars 模板变量
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* @param array $config 模板参数
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* @return void
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*/
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public function display($content, $vars = [], $config = [])
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{
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if ($vars) {
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$this->data = $vars;
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}
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if ($config) {
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$this->config($config);
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}
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$cacheFile = $this->config['cache_path'] . $this->config['cache_prefix'] . md5($content) . '.' . ltrim($this->config['cache_suffix'], '.');
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if (!$this->checkCache($cacheFile)) {
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// 缓存无效 模板编译
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$this->compiler($content, $cacheFile);
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}
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// 读取编译存储
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$this->storage->read($cacheFile, $this->data);
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}
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/**
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* 设置布局
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* @access public
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* @param mixed $name 布局模板名称 false 则关闭布局
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* @param string $replace 布局模板内容替换标识
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* @return object
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*/
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public function layout($name, $replace = '')
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{
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if (false === $name) {
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// 关闭布局
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$this->config['layout_on'] = false;
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} else {
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// 开启布局
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$this->config['layout_on'] = true;
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// 名称必须为字符串
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if (is_string($name)) {
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$this->config['layout_name'] = $name;
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}
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if (!empty($replace)) {
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$this->config['layout_item'] = $replace;
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}
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}
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|||
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|||
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return $this;
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|||
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}
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|||
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|
|||
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/**
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|||
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* 检查编译缓存是否有效
|
|||
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* 如果无效则需要重新编译
|
|||
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* @access private
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* @param string $cacheFile 缓存文件名
|
|||
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* @return boolean
|
|||
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*/
|
|||
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private function checkCache($cacheFile)
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|||
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{
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if (!$this->config['tpl_cache'] || !is_file($cacheFile) || !$handle = @fopen($cacheFile, "r")) {
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return false;
|
|||
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}
|
|||
|
|
|
|||
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// 读取第一行
|
|||
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preg_match('/\/\*(.+?)\*\//', fgets($handle), $matches);
|
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|
|||
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if (!isset($matches[1])) {
|
|||
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return false;
|
|||
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}
|
|||
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|
|||
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$includeFile = unserialize($matches[1]);
|
|||
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|
|||
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if (!is_array($includeFile)) {
|
|||
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return false;
|
|||
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|
}
|
|||
|
|
|
|||
|
|
// 检查模板文件是否有更新
|
|||
|
|
foreach ($includeFile as $path => $time) {
|
|||
|
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if (is_file($path) && filemtime($path) > $time) {
|
|||
|
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// 模板文件如果有更新则缓存需要更新
|
|||
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return false;
|
|||
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}
|
|||
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}
|
|||
|
|
|
|||
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// 检查编译存储是否有效
|
|||
|
|
return $this->storage->check($cacheFile, $this->config['cache_time']);
|
|||
|
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}
|
|||
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|
|
|||
|
|
/**
|
|||
|
|
* 检查编译缓存是否存在
|
|||
|
|
* @access public
|
|||
|
|
* @param string $cacheId 缓存的id
|
|||
|
|
* @return boolean
|
|||
|
|
*/
|
|||
|
|
public function isCache($cacheId)
|
|||
|
|
{
|
|||
|
|
if ($cacheId && $this->config['display_cache']) {
|
|||
|
|
// 缓存页面输出
|
|||
|
|
return $this->app['cache']->has($cacheId);
|
|||
|
|
}
|
|||
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|
|||
|
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return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 编译模板文件内容
|
|||
|
|
* @access private
|
|||
|
|
* @param string $content 模板内容
|
|||
|
|
* @param string $cacheFile 缓存文件名
|
|||
|
|
* @return void
|
|||
|
|
*/
|
|||
|
|
private function compiler(&$content, $cacheFile)
|
|||
|
|
{
|
|||
|
|
// 判断是否启用布局
|
|||
|
|
if ($this->config['layout_on']) {
|
|||
|
|
if (false !== strpos($content, '{__NOLAYOUT__}')) {
|
|||
|
|
// 可以单独定义不使用布局
|
|||
|
|
$content = str_replace('{__NOLAYOUT__}', '', $content);
|
|||
|
|
} else {
|
|||
|
|
// 读取布局模板
|
|||
|
|
$layoutFile = $this->parseTemplateFile($this->config['layout_name']);
|
|||
|
|
|
|||
|
|
if ($layoutFile) {
|
|||
|
|
// 替换布局的主体内容
|
|||
|
|
$content = str_replace($this->config['layout_item'], $content, file_get_contents($layoutFile));
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
} else {
|
|||
|
|
$content = str_replace('{__NOLAYOUT__}', '', $content);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 模板解析
|
|||
|
|
$this->parse($content);
|
|||
|
|
|
|||
|
|
if ($this->config['strip_space']) {
|
|||
|
|
/* 去除html空格与换行 */
|
|||
|
|
$find = ['~>\s+<~', '~>(\s+\n|\r)~'];
|
|||
|
|
$replace = ['><', '>'];
|
|||
|
|
$content = preg_replace($find, $replace, $content);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 优化生成的php代码
|
|||
|
|
$content = preg_replace('/\?>\s*<\?php\s(?!echo\b|\bend)/s', '', $content);
|
|||
|
|
|
|||
|
|
// 模板过滤输出
|
|||
|
|
$replace = $this->config['tpl_replace_string'];
|
|||
|
|
$content = str_replace(array_keys($replace), array_values($replace), $content);
|
|||
|
|
|
|||
|
|
// 添加安全代码及模板引用记录
|
|||
|
|
$content = '<?php /*' . serialize($this->includeFile) . '*/ ?>' . "\n" . $content;
|
|||
|
|
// 编译存储
|
|||
|
|
$this->storage->write($cacheFile, $content);
|
|||
|
|
|
|||
|
|
$this->includeFile = [];
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 模板解析入口
|
|||
|
|
* 支持普通标签和TagLib解析 支持自定义标签库
|
|||
|
|
* @access public
|
|||
|
|
* @param string $content 要解析的模板内容
|
|||
|
|
* @return void
|
|||
|
|
*/
|
|||
|
|
public function parse(&$content)
|
|||
|
|
{
|
|||
|
|
// 内容为空不解析
|
|||
|
|
if (empty($content)) {
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 替换literal标签内容
|
|||
|
|
$this->parseLiteral($content);
|
|||
|
|
|
|||
|
|
// 解析继承
|
|||
|
|
$this->parseExtend($content);
|
|||
|
|
|
|||
|
|
// 解析布局
|
|||
|
|
$this->parseLayout($content);
|
|||
|
|
|
|||
|
|
// 检查include语法
|
|||
|
|
$this->parseInclude($content);
|
|||
|
|
|
|||
|
|
// 替换包含文件中literal标签内容
|
|||
|
|
$this->parseLiteral($content);
|
|||
|
|
|
|||
|
|
// 检查PHP语法
|
|||
|
|
$this->parsePhp($content);
|
|||
|
|
|
|||
|
|
// 获取需要引入的标签库列表
|
|||
|
|
// 标签库只需要定义一次，允许引入多个一次
|
|||
|
|
// 一般放在文件的最前面
|
|||
|
|
// 格式：<taglib name="html,mytag..." />
|
|||
|
|
// 当TAGLIB_LOAD配置为true时才会进行检测
|
|||
|
|
if ($this->config['taglib_load']) {
|
|||
|
|
$tagLibs = $this->getIncludeTagLib($content);
|
|||
|
|
|
|||
|
|
if (!empty($tagLibs)) {
|
|||
|
|
// 对导入的TagLib进行解析
|
|||
|
|
foreach ($tagLibs as $tagLibName) {
|
|||
|
|
$this->parseTagLib($tagLibName, $content);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 预先加载的标签库 无需在每个模板中使用taglib标签加载 但必须使用标签库XML前缀
|
|||
|
|
if ($this->config['taglib_pre_load']) {
|
|||
|
|
$tagLibs = explode(',', $this->config['taglib_pre_load']);
|
|||
|
|
|
|||
|
|
foreach ($tagLibs as $tag) {
|
|||
|
|
$this->parseTagLib($tag, $content);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 内置标签库 无需使用taglib标签导入就可以使用 并且不需使用标签库XML前缀
|
|||
|
|
$tagLibs = explode(',', $this->config['taglib_build_in']);
|
|||
|
|
|
|||
|
|
foreach ($tagLibs as $tag) {
|
|||
|
|
$this->parseTagLib($tag, $content, true);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 解析普通模板标签 {$tagName}
|
|||
|
|
$this->parseTag($content);
|
|||
|
|
|
|||
|
|
// 还原被替换的Literal标签
|
|||
|
|
$this->parseLiteral($content, true);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 检查PHP语法
|
|||
|
|
* @access private
|
|||
|
|
* @param string $content 要解析的模板内容
|
|||
|
|
* @return void
|
|||
|
|
* @throws \think\Exception
|
|||
|
|
*/
|
|||
|
|
private function parsePhp(&$content)
|
|||
|
|
{
|
|||
|
|
// 短标签的情况要将<?标签用echo方式输出 否则无法正常输出xml标识
|
|||
|
|
$content = preg_replace('/(<\?(?!php|=|$))/i', '<?php echo \'\\1\'; ?>' . "\n", $content);
|
|||
|
|
|
|||
|
|
// PHP语法检查
|
|||
|
|
if ($this->config['tpl_deny_php'] && false !== strpos($content, '<?php')) {
|
|||
|
|
throw new Exception('not allow php tag');
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 解析模板中的布局标签
|
|||
|
|
* @access private
|
|||
|
|
* @param string $content 要解析的模板内容
|
|||
|
|
* @return void
|
|||
|
|
*/
|
|||
|
|
private function parseLayout(&$content)
|
|||
|
|
{
|
|||
|
|
// 读取模板中的布局标签
|
|||
|
|
if (preg_match($this->getRegex('layout'), $content, $matches)) {
|
|||
|
|
// 替换Layout标签
|
|||
|
|
$content = str_replace($matches[0], '', $content);
|
|||
|
|
// 解析Layout标签
|
|||
|
|
$array = $this->parseAttr($matches[0]);
|
|||
|
|
|
|||
|
|
if (!$this->config['layout_on'] || $this->config['layout_name'] != $array['name']) {
|
|||
|
|
// 读取布局模板
|
|||
|
|
$layoutFile = $this->parseTemplateFile($array['name']);
|
|||
|
|
|
|||
|
|
if ($layoutFile) {
|
|||
|
|
$replace = isset($array['replace']) ? $array['replace'] : $this->config['layout_item'];
|
|||
|
|
// 替换布局的主体内容
|
|||
|
|
$content = str_replace($replace, $content, file_get_contents($layoutFile));
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
} else {
|
|||
|
|
$content = str_replace('{__NOLAYOUT__}', '', $content);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 解析模板中的include标签
|
|||
|
|
* @access private
|
|||
|
|
* @param string $content 要解析的模板内容
|
|||
|
|
* @return void
|
|||
|
|
*/
|
|||
|
|
private function parseInclude(&$content)
|
|||
|
|
{
|
|||
|
|
$regex = $this->getRegex('include');
|
|||
|
|
$func = function ($template) use (&$func, &$regex, &$content) {
|
|||
|
|
if (preg_match_all($regex, $template, $matches, PREG_SET_ORDER)) {
|
|||
|
|
foreach ($matches as $match) {
|
|||
|
|
$array = $this->parseAttr($match[0]);
|
|||
|
|
$file = $array['file'];
|
|||
|
|
unset($array['file']);
|
|||
|
|
|
|||
|
|
// 分析模板文件名并读取内容
|
|||
|
|
$parseStr = $this->parseTemplateName($file);
|
|||
|
|
|
|||
|
|
foreach ($array as $k => $v) {
|
|||
|
|
// 以$开头字符串转换成模板变量
|
|||
|
|
if (0 === strpos($v, '$')) {
|
|||
|
|
$v = $this->get(substr($v, 1));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
$parseStr = str_replace('[' . $k . ']', $v, $parseStr);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
$content = str_replace($match[0], $parseStr, $content);
|
|||
|
|
// 再次对包含文件进行模板分析
|
|||
|
|
$func($parseStr);
|
|||
|
|
}
|
|||
|
|
unset($matches);
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// 替换模板中的include标签
|
|||
|
|
$func($content);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 解析模板中的extend标签
|
|||
|
|
* @access private
|
|||
|
|
* @param string $content 要解析的模板内容
|
|||
|
|
* @return void
|
|||
|
|
*/
|
|||
|
|
private function parseExtend(&$content)
|
|||
|
|
{
|
|||
|
|
$regex = $this->getRegex('extend');
|
|||
|
|
$array = $blocks = $baseBlocks = [];
|
|||
|
|
$extend = '';
|
|||
|
|
|
|||
|
|
$func = function ($template) use (&$func, &$regex, &$array, &$extend, &$blocks, &$baseBlocks) {
|
|||
|
|
if (preg_match($regex, $template, $matches)) {
|
|||
|
|
if (!isset($array[$matches['name']])) {
|
|||
|
|
$array[$matches['name']] = 1;
|
|||
|
|
// 读取继承模板
|
|||
|
|
$extend = $this->parseTemplateName($matches['name']);
|
|||
|
|
|
|||
|
|
// 递归检查继承
|
|||
|
|
$func($extend);
|
|||
|
|
|
|||
|
|
// 取得block标签内容
|
|||
|
|
$blocks = array_merge($blocks, $this->parseBlock($template));
|
|||
|
|
|
|||
|
|
return;
|
|||
|
|