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607 lines
24 KiB
PHP
607 lines
24 KiB
PHP
<?php
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/**
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* @link http://www.yiiframework.com/
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* @copyright Copyright (c) 2008 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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namespace yii\web;
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use Yii;
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use yii\base\Component;
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use yii\base\InvalidConfigException;
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use yii\base\InvalidParamException;
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use yii\helpers\FileHelper;
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use yii\helpers\Url;
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/**
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* AssetManager manages asset bundle configuration and loading.
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*
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* AssetManager is configured as an application component in [[\yii\web\Application]] by default.
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* You can access that instance via `Yii::$app->assetManager`.
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*
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* You can modify its configuration by adding an array to your application config under `components`
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* as shown in the following example:
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*
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* ```php
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* 'assetManager' => [
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* 'bundles' => [
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* // you can override AssetBundle configs here
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* ],
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* ]
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* ```
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*
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* For more details and usage information on AssetManager, see the [guide article on assets](guide:structure-assets).
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*
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* @property AssetConverterInterface $converter The asset converter. Note that the type of this property
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* differs in getter and setter. See [[getConverter()]] and [[setConverter()]] for details.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @since 2.0
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*/
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class AssetManager extends Component
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{
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/**
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* @var array|bool list of asset bundle configurations. This property is provided to customize asset bundles.
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* When a bundle is being loaded by [[getBundle()]], if it has a corresponding configuration specified here,
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* the configuration will be applied to the bundle.
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*
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* The array keys are the asset bundle names, which typically are asset bundle class names without leading backslash.
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* The array values are the corresponding configurations. If a value is false, it means the corresponding asset
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* bundle is disabled and [[getBundle()]] should return null.
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*
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* If this property is false, it means the whole asset bundle feature is disabled and [[getBundle()]]
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* will always return null.
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*
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* The following example shows how to disable the bootstrap css file used by Bootstrap widgets
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* (because you want to use your own styles):
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*
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* ```php
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* [
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* 'yii\bootstrap\BootstrapAsset' => [
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* 'css' => [],
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* ],
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* ]
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* ```
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*/
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public $bundles = [];
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/**
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* @var string the root directory storing the published asset files.
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*/
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public $basePath = '@webroot/assets';
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/**
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* @var string the base URL through which the published asset files can be accessed.
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*/
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public $baseUrl = '@web/assets';
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/**
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* @var array mapping from source asset files (keys) to target asset files (values).
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*
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* This property is provided to support fixing incorrect asset file paths in some asset bundles.
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* When an asset bundle is registered with a view, each relative asset file in its [[AssetBundle::css|css]]
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* and [[AssetBundle::js|js]] arrays will be examined against this map. If any of the keys is found
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* to be the last part of an asset file (which is prefixed with [[AssetBundle::sourcePath]] if available),
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* the corresponding value will replace the asset and be registered with the view.
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* For example, an asset file `my/path/to/jquery.js` matches a key `jquery.js`.
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*
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* Note that the target asset files should be absolute URLs, domain relative URLs (starting from '/') or paths
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* relative to [[baseUrl]] and [[basePath]].
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*
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* In the following example, any assets ending with `jquery.min.js` will be replaced with `jquery/dist/jquery.js`
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* which is relative to [[baseUrl]] and [[basePath]].
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*
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* ```php
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* [
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* 'jquery.min.js' => 'jquery/dist/jquery.js',
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* ]
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* ```
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*
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* You may also use aliases while specifying map value, for example:
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*
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* ```php
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* [
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* 'jquery.min.js' => '@web/js/jquery/jquery.js',
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* ]
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* ```
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*/
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public $assetMap = [];
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/**
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* @var bool whether to use symbolic link to publish asset files. Defaults to false, meaning
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* asset files are copied to [[basePath]]. Using symbolic links has the benefit that the published
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* assets will always be consistent with the source assets and there is no copy operation required.
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* This is especially useful during development.
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*
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* However, there are special requirements for hosting environments in order to use symbolic links.
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* In particular, symbolic links are supported only on Linux/Unix, and Windows Vista/2008 or greater.
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*
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* Moreover, some Web servers need to be properly configured so that the linked assets are accessible
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* to Web users. For example, for Apache Web server, the following configuration directive should be added
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* for the Web folder:
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*
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* ```apache
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* Options FollowSymLinks
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* ```
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*/
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public $linkAssets = false;
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/**
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* @var int the permission to be set for newly published asset files.
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* This value will be used by PHP chmod() function. No umask will be applied.
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* If not set, the permission will be determined by the current environment.
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*/
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public $fileMode;
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/**
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* @var int the permission to be set for newly generated asset directories.
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* This value will be used by PHP chmod() function. No umask will be applied.
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* Defaults to 0775, meaning the directory is read-writable by owner and group,
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* but read-only for other users.
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*/
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public $dirMode = 0775;
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/**
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* @var callback a PHP callback that is called before copying each sub-directory or file.
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* This option is used only when publishing a directory. If the callback returns false, the copy
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* operation for the sub-directory or file will be cancelled.
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*
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* The signature of the callback should be: `function ($from, $to)`, where `$from` is the sub-directory or
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* file to be copied from, while `$to` is the copy target.
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*
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* This is passed as a parameter `beforeCopy` to [[\yii\helpers\FileHelper::copyDirectory()]].
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*/
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public $beforeCopy;
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/**
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* @var callback a PHP callback that is called after a sub-directory or file is successfully copied.
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* This option is used only when publishing a directory. The signature of the callback is the same as
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* for [[beforeCopy]].
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* This is passed as a parameter `afterCopy` to [[\yii\helpers\FileHelper::copyDirectory()]].
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*/
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public $afterCopy;
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/**
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* @var bool whether the directory being published should be copied even if
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* it is found in the target directory. This option is used only when publishing a directory.
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* You may want to set this to be `true` during the development stage to make sure the published
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* directory is always up-to-date. Do not set this to true on production servers as it will
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* significantly degrade the performance.
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*/
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public $forceCopy = false;
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/**
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* @var bool whether to append a timestamp to the URL of every published asset. When this is true,
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* the URL of a published asset may look like `/path/to/asset?v=timestamp`, where `timestamp` is the
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* last modification time of the published asset file.
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* You normally would want to set this property to true when you have enabled HTTP caching for assets,
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* because it allows you to bust caching when the assets are updated.
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* @since 2.0.3
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*/
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public $appendTimestamp = false;
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/**
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* @var callable a callback that will be called to produce hash for asset directory generation.
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* The signature of the callback should be as follows:
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*
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* ```
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* function ($path)
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* ```
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*
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* where `$path` is the asset path. Note that the `$path` can be either directory where the asset
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* files reside or a single file. For a CSS file that uses relative path in `url()`, the hash
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* implementation should use the directory path of the file instead of the file path to include
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* the relative asset files in the copying.
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*
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* If this is not set, the asset manager will use the default CRC32 and filemtime in the `hash`
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* method.
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*
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* Example of an implementation using MD4 hash:
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*
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* ```php
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* function ($path) {
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* return hash('md4', $path);
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* }
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* ```
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*
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* @since 2.0.6
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*/
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public $hashCallback;
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private $_dummyBundles = [];
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/**
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* Initializes the component.
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* @throws InvalidConfigException if [[basePath]] is invalid
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*/
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public function init()
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{
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parent::init();
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$this->basePath = Yii::getAlias($this->basePath);
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if (!is_dir($this->basePath)) {
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throw new InvalidConfigException("The directory does not exist: {$this->basePath}");
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} elseif (!is_writable($this->basePath)) {
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throw new InvalidConfigException("The directory is not writable by the Web process: {$this->basePath}");
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} else {
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$this->basePath = realpath($this->basePath);
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}
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$this->baseUrl = rtrim(Yii::getAlias($this->baseUrl), '/');
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}
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/**
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* Returns the named asset bundle.
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*
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* This method will first look for the bundle in [[bundles]]. If not found,
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* it will treat `$name` as the class of the asset bundle and create a new instance of it.
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*
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* @param string $name the class name of the asset bundle (without the leading backslash)
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* @param bool $publish whether to publish the asset files in the asset bundle before it is returned.
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* If you set this false, you must manually call `AssetBundle::publish()` to publish the asset files.
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* @return AssetBundle the asset bundle instance
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* @throws InvalidConfigException if $name does not refer to a valid asset bundle
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*/
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public function getBundle($name, $publish = true)
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{
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if ($this->bundles === false) {
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return $this->loadDummyBundle($name);
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} elseif (!isset($this->bundles[$name])) {
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return $this->bundles[$name] = $this->loadBundle($name, [], $publish);
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} elseif ($this->bundles[$name] instanceof AssetBundle) {
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return $this->bundles[$name];
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} elseif (is_array($this->bundles[$name])) {
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return $this->bundles[$name] = $this->loadBundle($name, $this->bundles[$name], $publish);
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} elseif ($this->bundles[$name] === false) {
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return $this->loadDummyBundle($name);
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} else {
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throw new InvalidConfigException("Invalid asset bundle configuration: $name");
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}
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}
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/**
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* Loads asset bundle class by name
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*
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* @param string $name bundle name
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* @param array $config bundle object configuration
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* @param bool $publish if bundle should be published
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* @return AssetBundle
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* @throws InvalidConfigException if configuration isn't valid
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*/
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protected function loadBundle($name, $config = [], $publish = true)
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{
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if (!isset($config['class'])) {
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$config['class'] = $name;
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}
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/* @var $bundle AssetBundle */
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$bundle = Yii::createObject($config);
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if ($publish) {
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$bundle->publish($this);
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}
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return $bundle;
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}
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/**
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* Loads dummy bundle by name
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*
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* @param string $name
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* @return AssetBundle
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*/
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protected function loadDummyBundle($name)
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{
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if (!isset($this->_dummyBundles[$name])) {
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$this->_dummyBundles[$name] = $this->loadBundle($name, [
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'sourcePath' => null,
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'js' => [],
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'css' => [],
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'depends' => [],
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]);
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}
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return $this->_dummyBundles[$name];
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}
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/**
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* Returns the actual URL for the specified asset.
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* The actual URL is obtained by prepending either [[AssetBundle::$baseUrl]] or [[AssetManager::$baseUrl]] to the given asset path.
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* @param AssetBundle $bundle the asset bundle which the asset file belongs to
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* @param string $asset the asset path. This should be one of the assets listed in [[AssetBundle::$js]] or [[AssetBundle::$css]].
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* @return string the actual URL for the specified asset.
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*/
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public function getAssetUrl($bundle, $asset)
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{
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if (($actualAsset = $this->resolveAsset($bundle, $asset)) !== false) {
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if (strncmp($actualAsset, '@web/', 5) === 0) {
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$asset = substr($actualAsset, 5);
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$basePath = Yii::getAlias('@webroot');
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$baseUrl = Yii::getAlias('@web');
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} else {
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$asset = Yii::getAlias($actualAsset);
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$basePath = $this->basePath;
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$baseUrl = $this->baseUrl;
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}
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} else {
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$basePath = $bundle->basePath;
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$baseUrl = $bundle->baseUrl;
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}
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if (!Url::isRelative($asset) || strncmp($asset, '/', 1) === 0) {
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return $asset;
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}
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if ($this->appendTimestamp && ($timestamp = @filemtime("$basePath/$asset")) > 0) {
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return "$baseUrl/$asset?v=$timestamp";
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} else {
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return "$baseUrl/$asset";
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}
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}
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/**
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* Returns the actual file path for the specified asset.
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* @param AssetBundle $bundle the asset bundle which the asset file belongs to
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* @param string $asset the asset path. This should be one of the assets listed in [[AssetBundle::$js]] or [[AssetBundle::$css]].
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* @return string|false the actual file path, or `false` if the asset is specified as an absolute URL
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*/
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public function getAssetPath($bundle, $asset)
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{
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if (($actualAsset = $this->resolveAsset($bundle, $asset)) !== false) {
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return Url::isRelative($actualAsset) ? $this->basePath . '/' . $actualAsset : false;
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} else {
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return Url::isRelative($asset) ? $bundle->basePath . '/' . $asset : false;
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}
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}
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/**
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* @param AssetBundle $bundle
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* @param string $asset
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* @return string|bool
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*/
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protected function resolveAsset($bundle, $asset)
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{
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if (isset($this->assetMap[$asset])) {
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return $this->assetMap[$asset];
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}
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if ($bundle->sourcePath !== null && Url::isRelative($asset)) {
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$asset = $bundle->sourcePath . '/' . $asset;
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}
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$n = mb_strlen($asset, Yii::$app->charset);
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foreach ($this->assetMap as $from => $to) {
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$n2 = mb_strlen($from, Yii::$app->charset);
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if ($n2 <= $n && substr_compare($asset, $from, $n - $n2, $n2) === 0) {
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return $to;
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}
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}
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return false;
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}
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private $_converter;
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/**
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* Returns the asset converter.
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* @return AssetConverterInterface the asset converter.
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*/
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public function getConverter()
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{
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if ($this->_converter === null) {
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$this->_converter = Yii::createObject(AssetConverter::className());
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} elseif (is_array($this->_converter) || is_string($this->_converter)) {
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if (is_array($this->_converter) && !isset($this->_converter['class'])) {
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$this->_converter['class'] = AssetConverter::className();
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}
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$this->_converter = Yii::createObject($this->_converter);
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}
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return $this->_converter;
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}
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/**
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* Sets the asset converter.
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* @param array|AssetConverterInterface $value the asset converter. This can be either
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* an object implementing the [[AssetConverterInterface]], or a configuration
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* array that can be used to create the asset converter object.
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*/
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public function setConverter($value)
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{
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$this->_converter = $value;
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}
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/**
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* @var array published assets
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*/
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private $_published = [];
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/**
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* Publishes a file or a directory.
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*
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* This method will copy the specified file or directory to [[basePath]] so that
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* it can be accessed via the Web server.
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*
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* If the asset is a file, its file modification time will be checked to avoid
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* unnecessary file copying.
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*
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* If the asset is a directory, all files and subdirectories under it will be published recursively.
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* Note, in case $forceCopy is false the method only checks the existence of the target
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* directory to avoid repetitive copying (which is very expensive).
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*
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* By default, when publishing a directory, subdirectories and files whose name starts with a dot "."
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* will NOT be published. If you want to change this behavior, you may specify the "beforeCopy" option
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* as explained in the `$options` parameter.
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*
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* Note: On rare scenario, a race condition can develop that will lead to a
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* one-time-manifestation of a non-critical problem in the creation of the directory
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* that holds the published assets. This problem can be avoided altogether by 'requesting'
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* in advance all the resources that are supposed to trigger a 'publish()' call, and doing
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* that in the application deployment phase, before system goes live. See more in the following
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* discussion: http://code.google.com/p/yii/issues/detail?id=2579
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*
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* @param string $path the asset (file or directory) to be published
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* @param array $options the options to be applied when publishing a directory.
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* The following options are supported:
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*
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* - only: array, list of patterns that the file paths should match if they want to be copied.
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* - except: array, list of patterns that the files or directories should match if they want to be excluded from being copied.
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* - caseSensitive: boolean, whether patterns specified at "only" or "except" should be case sensitive. Defaults to true.
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* - beforeCopy: callback, a PHP callback that is called before copying each sub-directory or file.
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* This overrides [[beforeCopy]] if set.
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* - afterCopy: callback, a PHP callback that is called after a sub-directory or file is successfully copied.
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* This overrides [[afterCopy]] if set.
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* - forceCopy: boolean, whether the directory being published should be copied even if
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* it is found in the target directory. This option is used only when publishing a directory.
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* This overrides [[forceCopy]] if set.
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*
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* @return array the path (directory or file path) and the URL that the asset is published as.
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* @throws InvalidParamException if the asset to be published does not exist.
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*/
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public function publish($path, $options = [])
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{
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$path = Yii::getAlias($path);
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if (isset($this->_published[$path])) {
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return $this->_published[$path];
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}
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if (!is_string($path) || ($src = realpath($path)) === false) {
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throw new InvalidParamException("The file or directory to be published does not exist: $path");
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}
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if (is_file($src)) {
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return $this->_published[$path] = $this->publishFile($src);
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} else {
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return $this->_published[$path] = $this->publishDirectory($src, $options);
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}
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}
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/**
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* Publishes a file.
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* @param string $src the asset file to be published
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* @return string[] the path and the URL that the asset is published as.
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* @throws InvalidParamException if the asset to be published does not exist.
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*/
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protected function publishFile($src)
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{
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$dir = $this->hash($src);
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$fileName = basename($src);
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$dstDir = $this->basePath . DIRECTORY_SEPARATOR . $dir;
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$dstFile = $dstDir . DIRECTORY_SEPARATOR . $fileName;
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if (!is_dir($dstDir)) {
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FileHelper::createDirectory($dstDir, $this->dirMode, true);
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}
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if ($this->linkAssets) {
|
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if (!is_file($dstFile)) {
|
|
symlink($src, $dstFile);
|
|
}
|
|
} elseif (@filemtime($dstFile) < @filemtime($src)) {
|
|
copy($src, $dstFile);
|
|
if ($this->fileMode !== null) {
|
|
@chmod($dstFile, $this->fileMode);
|
|
}
|
|
}
|
|
|
|
return [$dstFile, $this->baseUrl . "/$dir/$fileName"];
|
|
}
|
|
|
|
/**
|
|
* Publishes a directory.
|
|
* @param string $src the asset directory to be published
|
|
* @param array $options the options to be applied when publishing a directory.
|
|
* The following options are supported:
|
|
*
|
|
* - only: array, list of patterns that the file paths should match if they want to be copied.
|
|
* - except: array, list of patterns that the files or directories should match if they want to be excluded from being copied.
|
|
* - caseSensitive: boolean, whether patterns specified at "only" or "except" should be case sensitive. Defaults to true.
|
|
* - beforeCopy: callback, a PHP callback that is called before copying each sub-directory or file.
|
|
* This overrides [[beforeCopy]] if set.
|
|
* - afterCopy: callback, a PHP callback that is called after a sub-directory or file is successfully copied.
|
|
* This overrides [[afterCopy]] if set.
|
|
* - forceCopy: boolean, whether the directory being published should be copied even if
|
|
* it is found in the target directory. This option is used only when publishing a directory.
|
|
* This overrides [[forceCopy]] if set.
|
|
*
|
|
* @return string[] the path directory and the URL that the asset is published as.
|
|
* @throws InvalidParamException if the asset to be published does not exist.
|
|
*/
|
|
protected function publishDirectory($src, $options)
|
|
{
|
|
$dir = $this->hash($src);
|
|
$dstDir = $this->basePath . DIRECTORY_SEPARATOR . $dir;
|
|
if ($this->linkAssets) {
|
|
if (!is_dir($dstDir)) {
|
|
FileHelper::createDirectory(dirname($dstDir), $this->dirMode, true);
|
|
symlink($src, $dstDir);
|
|
}
|
|
} elseif (!empty($options['forceCopy']) || ($this->forceCopy && !isset($options['forceCopy'])) || !is_dir($dstDir)) {
|
|
$opts = array_merge(
|
|
$options,
|
|
[
|
|
'dirMode' => $this->dirMode,
|
|
'fileMode' => $this->fileMode,
|
|
]
|
|
);
|
|
if (!isset($opts['beforeCopy'])) {
|
|
if ($this->beforeCopy !== null) {
|
|
$opts['beforeCopy'] = $this->beforeCopy;
|
|
} else {
|
|
$opts['beforeCopy'] = function ($from, $to) {
|
|
return strncmp(basename($from), '.', 1) !== 0;
|
|
};
|
|
}
|
|
}
|
|
if (!isset($opts['afterCopy']) && $this->afterCopy !== null) {
|
|
$opts['afterCopy'] = $this->afterCopy;
|
|
}
|
|
FileHelper::copyDirectory($src, $dstDir, $opts);
|
|
}
|
|
|
|
return [$dstDir, $this->baseUrl . '/' . $dir];
|
|
}
|
|
|
|
/**
|
|
* Returns the published path of a file path.
|
|
* This method does not perform any publishing. It merely tells you
|
|
* if the file or directory is published, where it will go.
|
|
* @param string $path directory or file path being published
|
|
* @return string|false string the published file path. False if the file or directory does not exist
|
|
*/
|
|
public function getPublishedPath($path)
|
|
{
|
|
$path = Yii::getAlias($path);
|
|
|
|
if (isset($this->_published[$path])) {
|
|
return $this->_published[$path][0];
|
|
}
|
|
if (is_string($path) && ($path = realpath($path)) !== false) {
|
|
return $this->basePath . DIRECTORY_SEPARATOR . $this->hash($path) . (is_file($path) ? DIRECTORY_SEPARATOR . basename($path) : '');
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the URL of a published file path.
|
|
* This method does not perform any publishing. It merely tells you
|
|
* if the file path is published, what the URL will be to access it.
|
|
* @param string $path directory or file path being published
|
|
* @return string|false string the published URL for the file or directory. False if the file or directory does not exist.
|
|
*/
|
|
public function getPublishedUrl($path)
|
|
{
|
|
$path = Yii::getAlias($path);
|
|
|
|
if (isset($this->_published[$path])) {
|
|
return $this->_published[$path][1];
|
|
}
|
|
if (is_string($path) && ($path = realpath($path)) !== false) {
|
|
return $this->baseUrl . '/' . $this->hash($path) . (is_file($path) ? '/' . basename($path) : '');
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Generate a CRC32 hash for the directory path. Collisions are higher
|
|
* than MD5 but generates a much smaller hash string.
|
|
* @param string $path string to be hashed.
|
|
* @return string hashed string.
|
|
*/
|
|
protected function hash($path)
|
|
{
|
|
if (is_callable($this->hashCallback)) {
|
|
return call_user_func($this->hashCallback, $path);
|
|
}
|
|
$path = (is_file($path) ? dirname($path) : $path) . filemtime($path);
|
|
return sprintf('%x', crc32($path . Yii::getVersion()));
|
|
}
|
|
}
|