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/**
* MvcCore
*
* This source file is subject to the BSD 3 License
* For the full copyright and license information, please view
* the LICENSE.md file that are distributed with this source code.
*
* @copyright Copyright (c) 2016 Tom Flídr (https://github.com/mvccore/mvccore)
* @license https://mvccore.github.io/docs/mvccore/4.0.0/LICENCE.md
*/
namespace MvcCore\Ext\View\Helpers;
class Assets
{
/**
* MvcCore Extension - View Helper - Assets - version:
* Comparation by PHP function version_compare();
* @see http://php.net/manual/en/function.version-compare.php
*/
const VERSION = '4.2.0';
/**
* Default link group name
* @const string
*/
const GROUP_NAME_DEFAULT = 'default';
/**
* Date format for ?_fmd param timestamp in admin development mode
* @const string
*/
const FILE_MODIFICATION_DATE_FORMAT = 'Y-m-d_H-i-s';
/**
* Simple app view object
* @var \MvcCore\View
*/
protected $view;
/**
* Called $_linksGroupContainer index throw helper function Css() or Js()
* @var string
*/
protected $actualGroupName = '';
/**
* Stream wrapper for actual file save operations (http://php.net/stream_wrapper_register)
* @var string
*/
protected $streamWrapper = '';
/**
* Global options about joining and minifying which
* can bee overwrited by single settings throw calling
* for eeample: append() method as another param.
* All possible options and meanings:
* - jsJoin - boolean - join JS files in JS group together into single file in tmp dir
* - jsMinify - boolean - minify JS file in any group by default (it's possible to override for each file)
* - cssJoin - boolean - join CSS files in CSS group together into single file in tmp dir
* - cssMinify - boolean - minify CSS file in any group by default (it's possible to override for each file)
* - tmpDir - string - relative path to temporary dir from application document root, by default: '/Var/Tmp'
* - fileChecking - string - php function names: md5_file | filemtime (filemtime is not working for PHAR packages,
* for PHAR packages use slower 'md5_file' value)
* - assetsUrl - boolean - strictly enable or disable special packge assets url completion in form:
* '?controller=controller&action=asset&path=...', by default, this switch is
* automaticly detected by application comple mode. In every compile mode except
* development mode and strict hdd mode is this switch configured internaly to true.
* @var array
*/
protected static $globalOptions = array(
'jsJoin' => 0,
'jsMinify' => 0,
'cssJoin' => 0,
'cssMinify' => 0,
'tmpDir' => '/Var/Tmp',
'fileChecking' => 'filemtime',
'assetsUrl' => NULL,
);
/**
* Application root directory from request object
* @var string
*/
protected static $appRoot = '';
/**
* Relative path to store joined and minified files
* from application root directory.
* @var string
*/
protected static $tmpDir = '';
/**
* Base not compiled url path from localhost if necessary
* @var string
*/
protected static $basePath = NULL;
/**
* If true, all messages are logged on hard drive,
* all exceptions are thrown.
* @var boolean
*/
protected static $logingAndExceptions = TRUE;
/**
* If true, all assets sources existences are checked
* @var boolean
*/
protected static $fileChecking = FALSE;
/**
* If true, all temporary files are rendered
* @var boolean
*/
protected static $fileRendering = FALSE;
/**
* If true, method AssetUrl in all css files returns
* to: 'index.php?controller=controller&action=asset&path=...'.
* @var boolean
*/
protected static $assetsUrlCompletion = NULL;
/**
* Hash completed as md5(json_encode()) from self::$globalOptions
* @var string
*/
protected static $systemConfigHash = '';
/**
* Insert a \MvcCore\View in each helper constructing
* @param \MvcCore\View $view
*/
public function __construct ($view) {
$this->view = $view;
$app = \MvcCore::GetInstance();
$request = $app->GetRequest();
self::$appRoot = $request->AppRoot;
if (is_null(self::$basePath)) self::$basePath = $request->BasePath;
self::$logingAndExceptions = \MvcCore\Config::IsDevelopment();
$mvcCoreCompiledMode = $app->GetCompiled();
// file checking is true only for classic development mode, not for single file mode
if (!$mvcCoreCompiledMode) self::$fileChecking = TRUE;
// file rendering is true for classic development state, SFU app mode
if (!$mvcCoreCompiledMode || $mvcCoreCompiledMode == 'SFU') {
self::$fileRendering = TRUE;
}
if (is_null(self::$assetsUrlCompletion)) {
// set url adresses complatition to true by default for:
// - vsechny package mody mimo PHP_STRICT_HDD a mimo development
if ($mvcCoreCompiledMode && $mvcCoreCompiledMode != 'PHP_STRICT_HDD') {
self::$assetsUrlCompletion = TRUE;
} else {
self::$assetsUrlCompletion = FALSE;
}
}
self::$systemConfigHash = md5(json_encode(self::$globalOptions));
}
/**
* Set global static options about minifying and joining together
* which can bee overwrited by single settings throw calling for
* example: append() method as another param.
*
* @see \MvcCore\Ext\View\Helpers\Assets::$globalOptions
* @param array $options whether or not to auto escape output
* @return void
*/
public static function SetGlobalOptions ($options = array()) {
self::$globalOptions = array_merge(self::$globalOptions, (array) $options);
if (isset($options['assetsUrl']) && !is_null($options['assetsUrl'])) {
self::$assetsUrlCompletion = (bool) $options['assetsUrl'];
}
}
/**
* Strictly enable/disable assets url completing in form
* '?controller=controller&action=asset&path=...'. Use this
* method only for cases, when you want to pack your application
* and you want to have all url adresses to css/js/fonts and
* images directly to hard drive.
* @param bool $enable
* @return void
*/
public static function SetAssetUrlCompletion ($enable = TRUE) {
self::$assetsUrlCompletion = $enable;
}
/**
* Set global static $basePath to load assets from
* any static cdn domain or any other place.
* @param string $basePath
* @return void
*/
public static function SetBasePath ($basePath) {
self::$basePath = $basePath;
}
/**
* Returns file modification imprint by global settings -
* by md5_file() or by filemtime() - always as a string
* @param string $fullPath
* @return string
*/
protected static function getFileImprint ($fullPath) {
$fileChecking = self::$globalOptions['fileChecking'];
if ($fileChecking == 'filemtime') {
return filemtime($fullPath);
} else {
return (string) call_user_func($fileChecking, $fullPath);
}
}
/**
* Render assets group.
* @return string
*/
public function __toString () {
return $this->Render();
}
/**
* Completes font or image file url inside CSS/JS file content.
*
* If application compile mode is in development state or packed in strict hdd mode,
* there is generated standard url with \MvcCore\Request::$BasePath (current app location)
* plus called $path param. Because those application compile modes presume by default,
* that those files are placed beside php code on hard drive.
*
* If application compile mode is in php preserve package, php preserve hdd,
* php strict package or in single file url mode, there is generated url by \MvcCore
* in form: '?controller=controller&action=asset&path=...'.
*
* Feel free to change this css/js file url completion to any custom way.
* There could be typically only: "$result = self::$basePath . $path;",
* but if you want to complete url for assets on hard drive or
* to any other cdn place, use \MvcCore\Ext\View\Helpers\Assets::SetBasePath($cdnBasePath);
*
* @param string $path relative path from application document root with slash in begin
* @return string
*/
public function AssetUrl ($path = '') {
$result = '';
if (self::$assetsUrlCompletion) {
// for \MvcCore::GetInstance()->GetCompiled() equal to: 'PHAR', 'SFU', 'PHP_STRICT_PACKAGE', 'PHP_PRESERVE_PACKAGE', 'PHP_PRESERVE_HDD'
$result = '?controller=controller&action=asset&path=' . $path;
} else {
// for \MvcCore::GetInstance()->GetCompiled(), by default equal to: '' (development), 'PHP_STRICT_HDD'
//$result = self::$basePath . $path;
$result = '__RELATIVE_BASE_PATH__' . $path;
}
return $result;
}
/**
* Completes CSS or JS file url.
*
* If application compile mode is in development state or packed in strict hdd mode,
* there is generated standard url with \MvcCore\Request->BasePath (current app location)
* plus called $path param. Because those application compile modes presume by default,
* that those files are placed beside php code on hard drive.
*
* If application compile mode is in php preserve package, php preserve hdd,
* php strict package or in single file url mode, there is generated url by \MvcCore
* in form: 'index.php?controller=controller&action=asset&path=...'.
*
* Feel free to change this css/js file url completion to any custom way.
* There could be typically only: "$result = self::$basePath . $path;",
* but if you want to complete url for assets on hard drive or
* to any other cdn place, use \MvcCore\Ext\View\Helpers\Assets::SetBasePath($cdnBasePath);
*
* @param string $path relative path from application document root with slash in begin
* @return string
*/
public function CssJsFileUrl ($path = '') {
$result = '';
if (self::$assetsUrlCompletion) {
// for \MvcCore::GetInstance()->GetCompiled() equal to: 'PHAR', 'SFU', 'PHP_STRICT_PACKAGE', 'PHP_PRESERVE_PACKAGE', 'PHP_PRESERVE_HDD'
$result = $this->view->AssetUrl($path);
} else {
// for \MvcCore::GetInstance()->GetCompiled() equal to: '' (development), 'PHP_STRICT_HDD'
$result = self::$basePath . $path;
}
return $result;
}
/**
* Get request params controller/action combination string
* @return string
*/
protected function getCtrlActionKey () {
$requestParams = \MvcCore::GetInstance()->GetRequest()->Params;
return $requestParams['controller'] . '/' . $requestParams['action'];
}
/**
* Look for every item to render if there is any 'doNotMinify' record to render item separately
* @param array $items
* @return array[] $itemsToRenderMinimized $itemsToRenderSeparately
*/
protected function filterItemsForNotPossibleMinifiedAndPossibleMinifiedItems ($items) {
$itemsToRenderMinimized = array();
$itemsToRenderSeparately = array(); // some configurations is not possible to render together and minimized
// go for every item to complete existing combinations in attributes
foreach ($items as & $item) {
$itemArr = array_merge((array) $item, array());
unset($itemArr['path']);
if (isset($itemArr['render'])) unset($itemArr['render']);
if (isset($itemArr['external'])) unset($itemArr['external']);
$renderArrayKey = md5(json_encode($itemArr));
if ($itemArr['doNotMinify']) {
if (isset($itemsToRenderSeparately[$renderArrayKey])) {
$itemsToRenderSeparately[$renderArrayKey][] = $item;
} else {
$itemsToRenderSeparately[$renderArrayKey] = array($item);
}
} else {
if (isset($itemsToRenderMinimized[$renderArrayKey])) {
$itemsToRenderMinimized[$renderArrayKey][] = $item;
} else {
$itemsToRenderMinimized[$renderArrayKey] = array($item);
}
}
}
return array(
$itemsToRenderMinimized,
$itemsToRenderSeparately,
);
}
/**
* Add to href url file modification param by original file
* @param string $url
* @param string $path
* @return string
*/
protected function addFileModificationImprintToHrefUrl ($url, $path) {
$questionMarkPos = strpos($url, '?');
$separator = ($questionMarkPos === FALSE) ? '?' : '&';
$strippedUrl = $questionMarkPos !== FALSE ? substr($url, $questionMarkPos) : $url ;
$srcPath = $this->getAppRoot() . substr($strippedUrl, strlen(self::$basePath));
if (self::$globalOptions['fileChecking'] == 'filemtime') {
$fileMTime = self::getFileImprint($srcPath);
$url .= $separator . '_fmt=' . date(
self::FILE_MODIFICATION_DATE_FORMAT,
(int)$fileMTime
);
} else {
$url .= $separator . '_md5=' . self::getFileImprint($srcPath);
}
return $url;
}
/**
* Get indent string
* @param string|int $indent
* @return string
*/
protected function getIndentString($indent = 0) {
$indentStr = '';
if (is_numeric($indent)) {
$indInt = intval($indent);
if ($indInt > 0) {
$i = 0;
while ($i < $indInt) {
$indentStr .= "\t";
$i += 1;
}
}
} else if (is_string($indent)) {
$indentStr = $indent;
}
return $indentStr;
}
/**
* Return and store application document root from controller view request object
* @return string
*/
protected function getAppRoot() {
return self::$appRoot;
}
/**
* Return and store application document root from controller view request object
* @throws \Exception
* @return string
*/
protected function getTmpDir() {
if (!self::$tmpDir) {
$tmpDir = $this->getAppRoot() . self::$globalOptions['tmpDir'];
if (!\MvcCore::GetInstance()->GetCompiled()) {
if (!is_dir($tmpDir)) mkdir($tmpDir, 0777, TRUE);
if (!is_writable($tmpDir)) {
try {
@chmod($tmpDir, 0777);
} catch (\Exception $e) {
throw new \Exception('['.__CLASS__.'] ' . $e->getMessage());
}
}
}
self::$tmpDir = $tmpDir;
}
return self::$tmpDir;
}
/**
* Save atomicly file content in full path by 1 MB to not overflow any memory limits
* @param string $fullPath
* @param string $fileContent
* @return void
*/
protected function saveFileContent ($fullPath = '', & $fileContent = '') {
$streamWrapper = '';
// https://github.com/nette/safe-stream/blob/master/src/SafeStream/SafeStream.php
$netteSafeStreamClass = '\Nette\Utils\SafeStream';
$netteSafeStreamProtocol = '';
$netteSafeStreamExists = class_exists($netteSafeStreamClass);
if (self::$fileRendering) {
if ($netteSafeStreamExists) {
$netteSafeStreamProtocol = constant($netteSafeStreamClass.'::PROTOCOL');
(new \ReflectionMethod($netteSafeStreamClass, 'register'))->invoke(NULL);
$streamWrapper = $netteSafeStreamProtocol . '://';
}
}
$fw = fopen($streamWrapper . $fullPath, 'w');
$index = 0;
$bufferLength = 1048576; // 1 MB
$buffer = '';
while ($buffer = mb_substr($fileContent, $index, $bufferLength)) {
fwrite($fw, $buffer);
$index += $bufferLength;
}
fclose($fw);
@chmod($fullPath, 0766);
if (self::$fileRendering) {
if ($netteSafeStreamExists) stream_wrapper_unregister($netteSafeStreamProtocol);
}
}
/**
* Log any render messages with optional log file name
* @param string $msg
* @param string $logType
* @return void
*/
protected function log ($msg = '', $logType = 'debug') {
if (self::$logingAndExceptions) {
\MvcCore\Debug::Log($msg, $logType);
}
}
/**
* Throw exception with given message with actual helper class name before
* @param string $msg
* @throws \Exception text by given message
* @return void
*/
protected function exception ($msg) {
if (self::$logingAndExceptions) {
throw new \Exception('[' . get_class($this) . '] ' . $msg);
}
}
/**
* Throw exception with given message with actual helper class name before
* @param string $msg
* @return void
*/
protected function warning ($msg) {
if (self::$logingAndExceptions) {
\MvcCore\Debug::BarDump('[' . get_class($this) . '] ' . $msg, \MvcCore\Debug::DEBUG);
}
}
/**
* Render given exception
* @param \Exception $e
* @return void
*/
protected function exceptionHandler (\Exception $e) {
if (self::$logingAndExceptions) {
\MvcCore\Debug::Exception($e);
}
}
/**
* Complete items group tmp directory file name by group source files info
* @param array $filesGroupInfo
* @param boolean $minify
* @return string
*/
protected function getTmpFileFullPathByPartFilesInfo ($filesGroupInfo = array(), $minify = FALSE, $extension = '') {
return implode('', array(
$this->getTmpDir(),
'/' . ($minify ? 'minified' : 'rendered') . '_' . $extension . '_',
md5(implode(',', $filesGroupInfo) . '_' . $minify),
'.' . $extension
));
}
}