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Editing: class.ls.modulemanager.php

<?php

class LS_ModuleManager {

public $repoURL;

public $uploadsDir;
	public $uploadsURL;

public $modulesDir;
	public $modulesURL;

public $moduleHandle;
	public $moduleDir;
	public $moduleURL;

public $errMessage = '';
	public $errCode = '';

public function __construct( $moduleHandle, $moduleProperties = [] ) {

if( empty( $moduleHandle ) ) {
			return false;
		}

$moduleProperties = array_merge([
			'autoCheck' => true,
			'autoDownload' => true,
		], $moduleProperties );

$this->moduleHandle = sanitize_file_name( $moduleHandle );
		$this->repoURL = LS_REPO_BASE_URL.'modules/';

if( ! $this->checkDirectories() ) {
			return false;
		}

if( $moduleProperties['autoCheck'] ) {
			if( ! $this->checkModule() && $moduleProperties['autoDownload'] ) {
				if( ! $this->downloadModule() ) {
					return false;
				}
			}
		}

return true;
	}

public function checkDirectories( ) {

if( ! LS_FileSystem::createUploadDirs() ) {
			$this->logError('ERR_UPLOADS_DIR_NOT_WRITABLE', sprintf( __('LayerSlider was unable to create the directory for the module. Please verify that your uploads folder is writable. See the %sCodex%s for more information.', 'LayerSlider'), '<a href="https://wordpress.org/support/article/changing-file-permissions/" target="_blank">', '</a>' ));
				return false;
		}

$uploadsDir 		= wp_upload_dir();
		$uploadsBaseDir 	= $uploadsDir['basedir'];
		$uploadsBaseURL 	= $uploadsDir['baseurl'];

$this->uploadsDir 	= $uploadsBaseDir . DIRECTORY_SEPARATOR . 'layerslider';
		$this->uploadsURL 	= $uploadsBaseURL.'/layerslider';

$this->modulesDir 	= $this->uploadsDir . DIRECTORY_SEPARATOR . 'modules';
		$this->modulesURL 	= $this->uploadsURL.'/modules';

$this->moduleDir  	= $this->modulesDir . DIRECTORY_SEPARATOR . $this->moduleHandle;
		$this->moduleURL  	= $this->modulesURL.'/'.$this->moduleHandle;

return true;
	}

public function checkModule( ) {

$targetDir  = $this->moduleDir;
		$filesCount = count( glob( "$targetDir/*" ) );

if( ! file_exists( $targetDir ) || $filesCount === 0) {
			return false;
		}

return true;
	}

public function downloadModule( ) {

// Attempt to remove module dir if it already exists.
		// This helps avoid issues with partial or corrupt downloads.
		if( file_exists( $this->moduleDir ) ) {
			@rmdir( $this->moduleDir );
		}

$targetURL 	= $this->repoURL . '?module=' . $this->moduleHandle;
		$zipContent = $GLOBALS['LS_AutoUpdate']->sendApiRequest( $targetURL );

if( ! $zipContent || is_wp_error( $zipContent ) ) {
			$this->logError('ERR_DOWNLOAD', sprintf( __('LayerSlider was unable to download the module. Please check %sSystem Status%s for potential issues. The WP Remote functions may be unavailable or your web hosting provider has to allow external connections to our domain.', 'LayerSlider'), '<a href="'.admin_url( 'admin.php?page=layerslider&section=system-status' ).'" target="_blank">', '</a>' ) );
			return false;
		}

// Check for errors sent back by the remote by trying
		// to parse the response data as JSON.
		if( $zipContent && $zipContent[0] === '{' && $zipContent[1] === '"' )  {
			if( $json = json_decode( $zipContent, true ) ) {

// Check activation state
				if( ! empty( $json['message'] ) ) {
					$subDeactivated = ! empty( $json['_sub_deactivated'] );
					$GLOBALS['LS_AutoUpdate']->check_activation_state( $subDeactivated );
					$this->logError( $json['errCode'], $json['message'] );
					return false;
				}
			}
		}

$dlFilePath = tempnam( sys_get_temp_dir(), 'ZIP_' );
		file_put_contents( $dlFilePath, $zipContent );

if( LS_FileSystem::unzip( $dlFilePath, $this->moduleDir ) ) {
			unlink( $dlFilePath );
			LS_FileSystem::addIndexPHP( $this->moduleDir );
			return true;
		}

$this->logError('ERR_ZIP_EXTRACTION', sprintf( __('LayerSlider was unable to uncompress the module. Please check %sSystem Status%s for potential issues.', 'LayerSlider'), '<a href="'.admin_url( 'admin.php?page=layerslider&section=system-status' ).'" target="_blank">', '</a>' ) );
		unlink( $dlFilePath );
		return false;
	}

protected function logError( $code = '', $message = '' ) {

$this->errCode = $code;
		$this->errMessage = $message;
	}
}

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