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<?php
/**
* JavaScript management
*/
declare(strict_types=1);
namespace PhpMyAdmin;
use function defined;
use function md5;
use function strpos;
/**
* Collects information about which JavaScript
* files and objects are necessary to render
* the page and generates the relevant code.
*/
class Scripts
{
/**
* An array of SCRIPT tags
*
* @access private
* @var array of strings
*/
private $files;
/**
* A string of discrete javascript code snippets
*
* @access private
* @var string
*/
private $code;
/** @var Template */
private $template;
/**
* Generates new Scripts objects
*/
public function __construct()
{
$this->template = new Template();
$this->files = [];
$this->code = '';
}
/**
* Adds a new file to the list of scripts
*
* @param string $filename The name of the file to include
* @param array $params Additional parameters to pass to the file
*
* @return void
*/
public function addFile(
$filename,
array $params = []
) {
$hash = md5($filename);
if (! empty($this->files[$hash])) {
return;
}
$has_onload = $this->hasOnloadEvent($filename);
$this->files[$hash] = [
'has_onload' => $has_onload,
'filename' => $filename,
'params' => $params,
];
}
/**
* Add new files to the list of scripts
*
* @param array $filelist The array of file names
*
* @return void
*/
public function addFiles(array $filelist)
{
foreach ($filelist as $filename) {
$this->addFile($filename);
}
}
/**
* Determines whether to fire up an onload event for a file
*
* @param string $filename The name of the file to be checked
* against the exclude list.
*
* @return int 1 to fire up the event, 0 not to
*/
private function hasOnloadEvent($filename)
{
if (strpos($filename, 'jquery') !== false
|| strpos($filename, 'codemirror') !== false
|| strpos($filename, 'messages.php') !== false
|| strpos($filename, 'ajax.js') !== false
|| strpos($filename, 'cross_framing_protection.js') !== false
) {
return 0;
}
return 1;
}
/**
* Adds a new code snippet to the code to be executed
*
* @param string $code The JS code to be added
*
* @return void
*/
public function addCode($code)
{
$this->code .= $code . "\n";
}
/**
* Returns a list with filenames and a flag to indicate
* whether to register onload events for this file
*
* @return array
*/
public function getFiles()
{
$retval = [];
foreach ($this->files as $file) {
//If filename contains a "?", continue.
if (strpos($file['filename'], '?') !== false) {
continue;
}
$retval[] = [
'name' => $file['filename'],
'fire' => $file['has_onload'],
];
}
return $retval;
}
/**
* Renders all the JavaScript file inclusions, code and events
*
* @return string
*/
public function getDisplay()
{
$baseDir = defined('PMA_PATH_TO_BASEDIR') ? PMA_PATH_TO_BASEDIR : '';
return $this->template->render('scripts', [
'base_dir' => $baseDir,
'files' => $this->files,
'version' => PMA_VERSION,
'code' => $this->code,
]);
}
}