public function importStyleSheet()
	{
		if (Input::get('key') != 'import')
		{
			return '';
		}

		/** @var FileUpload $objUploader */
		$objUploader = new FileUpload();

		// Import CSS
		if (Input::post('FORM_SUBMIT') == 'tl_style_sheet_import')
		{
			$arrUploaded = $objUploader->uploadTo('system/tmp');

			if (empty($arrUploaded))
			{
				Message::addError($GLOBALS['TL_LANG']['ERR']['all_fields']);
				$this->reload();
			}

			foreach ($arrUploaded as $strCssFile)
			{
				// Folders cannot be imported
				if (is_dir($this->strRootDir . '/' . $strCssFile))
				{
					Message::addError(sprintf($GLOBALS['TL_LANG']['ERR']['importFolder'], basename($strCssFile)));
					continue;
				}

				$objFile = new File($strCssFile);

				// Check the file extension
				if ($objFile->extension != 'css')
				{
					Message::addError(sprintf($GLOBALS['TL_LANG']['ERR']['filetype'], $objFile->extension));
					continue;
				}

				// Check the file name
				$strName = preg_replace('/\.css$/i', '', basename($strCssFile));
				$strName = $this->checkStyleSheetName($strName);

				// Create the new style sheet
				$objStyleSheet = $this->Database->prepare("INSERT INTO tl_style_sheet (pid, tstamp, name, media) VALUES (?, ?, ?, ?)")
												->execute(Input::get('id'), time(), $strName, array('all'));

				$insertId = $objStyleSheet->insertId;

				if (!is_numeric($insertId) || $insertId < 0)
				{
					throw new \Exception('Invalid insert ID');
				}

				// Read the file and remove carriage returns
				$strFile = $objFile->getContent();
				$strFile = str_replace("\r", '', $strFile);

				$arrTokens   = array();
				$strBuffer   = '';
				$intSorting  = 0;
				$strComment  = '';
				$strCategory = '';
				$intLength   = \strlen($strFile);

				// Tokenize
				for ($i=0; $i<$intLength; $i++)
				{
					$char = $strFile[$i];

					// Whitespace
					if ($char == '' || $char == "\n" || $char == "\t")
					{
						// Ignore
					}

					// Comment
					elseif ($char == '/')
					{
						if ($strFile[$i+1] == '*')
						{
							while ($i<$intLength)
							{
								$strBuffer .= $strFile[$i++];

								if ($strFile[$i] == '/' && $strFile[$i-1] == '*')
								{
									$arrTokens[] = array
									(
										'type'    => 'comment',
										'content' => $strBuffer . $strFile[$i]
									);

									$strBuffer = '';
									break;
								}
							}
						}
					}

					// At block
					elseif ($char == '@')
					{
						$intLevel = 0;
						$strSelector = '';

						while ($i<$intLength)
						{
							$strBuffer .= $strFile[$i++];

							if ($strFile[$i] == '{')
							{
								if (++$intLevel == 1)
								{
									++$i;
									$strSelector = $strBuffer;
									$strBuffer = '';
								}
							}
							elseif ($strFile[$i] == '}')
							{
								if (--$intLevel == 0)
								{
									$arrTokens[] = array
									(
										'type'     => 'atblock',
										'selector' => $strSelector,
										'content'  => $strBuffer
									);

									$strBuffer = '';
									break;
								}
							}
						}
					}

					// Regular block
					else
					{
						$strSelector = '';

						while ($i<$intLength)
						{
							$strBuffer .= $strFile[$i++];

							if ($strFile[$i] == '{')
							{
								++$i;
								$strSelector = $strBuffer;
								$strBuffer = '';
							}
							elseif ($strFile[$i] == '}')
							{
								$arrTokens[] = array
								(
									'type'     => 'block',
									'selector' => $strSelector,
									'content'  => $strBuffer
								);

								$strBuffer = '';
								break;
							}
						}
					}
				}

				foreach ($arrTokens as $arrToken)
				{
					// Comments
					if ($arrToken['type'] == 'comment')
					{
						// Category (comments start with /** and contain only one line)
						if (strncmp($arrToken['content'], '/**', 3) === 0 && substr_count($arrToken['content'], "\n") == 2)
						{
							$strCategory = trim(str_replace(array('/*', '*/', '*'), '', $arrToken['content']));
						}

						// Declaration comment
						elseif (strpos($arrToken['content'], "\n") === false)
						{
							$strComment = trim(str_replace(array('/*', '*/', '*'), '', $arrToken['content']));
						}
					}

					// At blocks like @media or @-webkit-keyframe
					elseif ($arrToken['type'] == 'atblock')
					{
						$arrSet = array
						(
							'pid'        => $insertId,
							'category'   => $strCategory,
							'comment'    => $strComment,
							'sorting'    => $intSorting += 128,
							'selector'   => trim($arrToken['selector']),
							'own'        => $arrToken['content']
						);

						$this->Database->prepare("INSERT INTO tl_style %s")->set($arrSet)->execute();
						$strComment = '';
					}

					// Regular blocks
					else
					{
						$arrDefinition = array
						(
							'pid'        => $insertId,
							'category'   => $strCategory,
							'comment'    => $strComment,
							'sorting'    => $intSorting += 128,
							'selector'   => trim($arrToken['selector']),
							'attributes' => $arrToken['content']
						);

						$this->createDefinition($arrDefinition);
						$strComment = '';
					}
				}

				// Write the style sheet
				$this->updateStyleSheet($insertId);

				// Notify the user
				if ($strName . '.css' != basename($strCssFile))
				{
					Message::addInfo(sprintf($GLOBALS['TL_LANG']['tl_style_sheet']['css_renamed'], basename($strCssFile), $strName . '.css'));
				}
				else
				{
					Message::addConfirmation(sprintf($GLOBALS['TL_LANG']['tl_style_sheet']['css_imported'], $strName . '.css'));
				}
			}

			// Redirect
			System::setCookie('BE_PAGE_OFFSET', 0, 0);
			$this->redirect(str_replace('&key=import', '', Environment::get('request')));
		}

		// Return form
		return Message::generate() . '
<div id="tl_buttons">
<a href="' .ampersand(str_replace('&key=import', '', Environment::get('request'))). '" class="header_back" title="' .StringUtil::specialchars($GLOBALS['TL_LANG']['MSC']['backBTTitle']). '" accesskey="b">' .$GLOBALS['TL_LANG']['MSC']['backBT']. '</a>
</div>
<form action="' .ampersand(Environment::get('request'), true). '" id="tl_style_sheet_import" class="tl_form tl_edit_form" method="post" enctype="multipart/form-data">
<div class="tl_formbody_edit">
<input type="hidden" name="FORM_SUBMIT" value="tl_style_sheet_import">
<input type="hidden" name="REQUEST_TOKEN" value="'.REQUEST_TOKEN.'">
<input type="hidden" name="MAX_FILE_SIZE" value="'.Config::get('maxFileSize').'">

<div class="tl_tbox">
  <div class="widget">
    <h3>'.$GLOBALS['TL_LANG']['tl_style_sheet']['source'][0].'</h3>'.$objUploader->generateMarkup().(isset($GLOBALS['TL_LANG']['tl_style_sheet']['source'][1]) ? '
    <p class="tl_help tl_tip">'.$GLOBALS['TL_LANG']['tl_style_sheet']['source'][1].'</p>' : '').'
  </div>
</div>

</div>

<div class="tl_formbody_submit">

<div class="tl_submit_container">
  <button type="submit" name="save" id="save" class="tl_submit" accesskey="s">'.$GLOBALS['TL_LANG']['tl_style_sheet']['import'][0].'</button>
</div>

</div>
</form>';
	}
public function importStyleSheet()
	{
		if (Input::get('key') != 'import')
		{
			return '';
		}

		
		$objUploader = new FileUpload();

		
		if (Input::post('FORM_SUBMIT') == 'tl_style_sheet_import')
		{
			$arrUploaded = $objUploader->uploadTo('system/tmp');

			if (empty($arrUploaded))
			{
				Message::addError($GLOBALS['TL_LANG']['ERR']['all_fields']);
				$this->reload();
			}

			foreach ($arrUploaded as $strCssFile)
			{
				
				if (is_dir($this->strRootDir . '/' . $strCssFile))
				{
					Message::addError(sprintf($GLOBALS['TL_LANG']['ERR']['importFolder'], basename($strCssFile)));
					continue;
				}

				$objFile = new File($strCssFile);

				
				if ($objFile->extension != 'css')
				{
					Message::addError(sprintf($GLOBALS['TL_LANG']['ERR']['filetype'], $objFile->extension));
					continue;
				}

				
				$strName = preg_replace('/\.css$/i', '', basename($strCssFile));
				$strName = $this->checkStyleSheetName($strName);

				
				$objStyleSheet = $this->Database->prepare("INSERT INTO tl_style_sheet (pid, tstamp, name, media) VALUES (?, ?, ?, ?)")
												->execute(Input::get('id'), time(), $strName, array('all'));

				$insertId = $objStyleSheet->insertId;

				if (!is_numeric($insertId) || $insertId < 0)
				{
					throw new \Exception('Invalid insert ID');
				}

				
				$strFile = $objFile->getContent();
				$strFile = str_replace("\r", '', $strFile);

				$arrTokens   = array();
				$strBuffer   = '';
				$intSorting  = 0;
				$strComment  = '';
				$strCategory = '';
				$intLength   = \strlen($strFile);

				
				for ($i=0; $i<$intLength; $i++)
				{
					$char = $strFile[$i];

					
					if ($char == '' || $char == "\n" || $char == "\t")
					{
						
					}

					
					elseif ($char == '/')
					{
						if ($strFile[$i+1] == '*')
						{
							while ($i<$intLength)
							{
								$strBuffer .= $strFile[$i++];

								if ($strFile[$i] == '/' && $strFile[$i-1] == '*')
								{
									$arrTokens[] = array
									(
										'type'    => 'comment',
										'content' => $strBuffer . $strFile[$i]
									);

									$strBuffer = '';
									break;
								}
							}
						}
					}

					
					elseif ($char == '@')
					{
						$intLevel = 0;
						$strSelector = '';

						while ($i<$intLength)
						{
							$strBuffer .= $strFile[$i++];

							if ($strFile[$i] == '{')
							{
								if (++$intLevel == 1)
								{
									++$i;
									$strSelector = $strBuffer;
									$strBuffer = '';
								}
							}
							elseif ($strFile[$i] == '}')
							{
								if (--$intLevel == 0)
								{
									$arrTokens[] = array
									(
										'type'     => 'atblock',
										'selector' => $strSelector,
										'content'  => $strBuffer
									);

									$strBuffer = '';
									break;
								}
							}
						}
					}

					
					else
					{
						$strSelector = '';

						while ($i<$intLength)
						{
							$strBuffer .= $strFile[$i++];

							if ($strFile[$i] == '{')
							{
								++$i;
								$strSelector = $strBuffer;
								$strBuffer = '';
							}
							elseif ($strFile[$i] == '}')
							{
								$arrTokens[] = array
								(
									'type'     => 'block',
									'selector' => $strSelector,
									'content'  => $strBuffer
								);

								$strBuffer = '';
								break;
							}
						}
					}
				}

				foreach ($arrTokens as $arrToken)
				{
					
					if ($arrToken['type'] == 'comment')
					{
						
						}

						
						elseif (strpos($arrToken['content'], "\n") === false)
						{
							$strComment = trim(str_replace(array('', '*'), '', $arrToken['content']));
						}
					}

					
					elseif ($arrToken['type'] == 'atblock')
					{
						$arrSet = array
						(
							'pid'        => $insertId,
							'category'   => $strCategory,
							'comment'    => $strComment,
							'sorting'    => $intSorting += 128,
							'selector'   => trim($arrToken['selector']),
							'own'        => $arrToken['content']
						);

						$this->Database->prepare("INSERT INTO tl_style %s")->set($arrSet)->execute();
						$strComment = '';
					}

					
					else
					{
						$arrDefinition = array
						(
							'pid'        => $insertId,
							'category'   => $strCategory,
							'comment'    => $strComment,
							'sorting'    => $intSorting += 128,
							'selector'   => trim($arrToken['selector']),
							'attributes' => $arrToken['content']
						);

						$this->createDefinition($arrDefinition);
						$strComment = '';
					}
				}

				
				$this->updateStyleSheet($insertId);

				
				if ($strName . '.css' != basename($strCssFile))
				{
					Message::addInfo(sprintf($GLOBALS['TL_LANG']['tl_style_sheet']['css_renamed'], basename($strCssFile), $strName . '.css'));
				}
				else
				{
					Message::addConfirmation(sprintf($GLOBALS['TL_LANG']['tl_style_sheet']['css_imported'], $strName . '.css'));
				}
			}

			
			System::setCookie('BE_PAGE_OFFSET', 0, 0);
			$this->redirect(str_replace('&key=import', '', Environment::get('request')));
		}

		
		return Message::generate() . '
<div id="tl_buttons">
<a href="' .ampersand(str_replace('&key=import', '', Environment::get('request'))). '" class="header_back" title="' .StringUtil::specialchars($GLOBALS['TL_LANG']['MSC']['backBTTitle']). '" accesskey="b">' .$GLOBALS['TL_LANG']['MSC']['backBT']. '</a>
</div>
<form action="' .ampersand(Environment::get('request'), true). '" id="tl_style_sheet_import" class="tl_form tl_edit_form" method="post" enctype="multipart/form-data">
<div class="tl_formbody_edit">
<input type="hidden" name="FORM_SUBMIT" value="tl_style_sheet_import">
<input type="hidden" name="REQUEST_TOKEN" value="'.REQUEST_TOKEN.'">
<input type="hidden" name="MAX_FILE_SIZE" value="'.Config::get('maxFileSize').'">

<div class="tl_tbox">
  <div class="widget">
    <h3>'.$GLOBALS['TL_LANG']['tl_style_sheet']['source'][0].'</h3>'.$objUploader->generateMarkup().(isset($GLOBALS['TL_LANG']['tl_style_sheet']['source'][1]) ? '
    <p class="tl_help tl_tip">'.$GLOBALS['TL_LANG']['tl_style_sheet']['source'][1].'</p>' : '').'
  </div>
</div>

</div>

<div class="tl_formbody_submit">

<div class="tl_submit_container">
  <button type="submit" name="save" id="save" class="tl_submit" accesskey="s">'.$GLOBALS['TL_LANG']['tl_style_sheet']['import'][0].'</button>
</div>

</div>
</form>';
	}
public function importStyleSheet ( ) { if ( Input :: get ( 'key' ) != 'import' ) { return '' ; } /** @var FileUpload $objUploader */ $ objUploader = new FileUpload ( ) ; // Import CSS if ( Input :: post ( 'FORM_SUBMIT' ) == 'tl_style_sheet_import' ) { $ arrUploaded = $ objUploader -> uploadTo ( 'system/tmp' ) ; if ( empty ( $ arrUploaded ) ) { Message :: addError ( $ GLOBALS [ 'TL_LANG' ] [ 'ERR' ] [ 'all_fields' ] ) ; $ this -> reload ( ) ; } foreach ( $ arrUploaded as $ strCssFile ) { // Folders cannot be imported if ( is_dir ( $ this -> strRootDir . '/' . $ strCssFile ) ) { Message :: addError ( sprintf ( $ GLOBALS [ 'TL_LANG' ] [ 'ERR' ] [ 'importFolder' ] , basename ( $ strCssFile ) ) ) ; continue ; } $ objFile = new File ( $ strCssFile ) ; // Check the file extension if ( $ objFile -> extension != 'css' ) { Message :: addError ( sprintf ( $ GLOBALS [ 'TL_LANG' ] [ 'ERR' ] [ 'filetype' ] , $ objFile -> extension ) ) ; continue ; } // Check the file name $ strName = preg_replace ( '/\.css$/i' , '' , basename ( $ strCssFile ) ) ; $ strName = $ this -> checkStyleSheetName ( $ strName ) ; // Create the new style sheet $ objStyleSheet = $ this -> Database -> prepare ( "INSERT INTO tl_style_sheet (pid, tstamp, name, media) VALUES (?, ?, ?, ?)" ) -> execute ( Input :: get ( 'id' ) , time ( ) , $ strName , array ( 'all' ) ) ; $ insertId = $ objStyleSheet -> insertId ; if ( ! is_numeric ( $ insertId ) || $ insertId < 0 ) { throw new \ Exception ( 'Invalid insert ID' ) ; } // Read the file and remove carriage returns $ strFile = $ objFile -> getContent ( ) ; $ strFile = str_replace ( "\r" , '' , $ strFile ) ; $ arrTokens = array ( ) ; $ strBuffer = '' ; $ intSorting = 0 ; $ strComment = '' ; $ strCategory = '' ; $ intLength = \ strlen ( $ strFile ) ; // Tokenize for ( $ i = 0 ; $ i < $ intLength ; $ i ++ ) { $ char = $ strFile [ $ i ] ; // Whitespace if ( $ char == '' || $ char == "\n" || $ char == "\t" ) { // Ignore } // Comment elseif ( $ char == '/' ) { if ( $ strFile [ $ i + 1 ] == '*' ) { while ( $ i < $ intLength ) { $ strBuffer .= $ strFile [ $ i ++ ] ; if ( $ strFile [ $ i ] == '/' && $ strFile [ $ i - 1 ] == '*' ) { $ arrTokens [ ] = array ( 'type' => 'comment' , 'content' => $ strBuffer . $ strFile [ $ i ] ) ; $ strBuffer = '' ; break ; } } } } // At block elseif ( $ char == '@' ) { $ intLevel = 0 ; $ strSelector = '' ; while ( $ i < $ intLength ) { $ strBuffer .= $ strFile [ $ i ++ ] ; if ( $ strFile [ $ i ] == '{' ) { if ( ++ $ intLevel == 1 ) { ++ $ i ; $ strSelector = $ strBuffer ; $ strBuffer = '' ; } } elseif ( $ strFile [ $ i ] == '}' ) { if ( -- $ intLevel == 0 ) { $ arrTokens [ ] = array ( 'type' => 'atblock' , 'selector' => $ strSelector , 'content' => $ strBuffer ) ; $ strBuffer = '' ; break ; } } } } // Regular block else { $ strSelector = '' ; while ( $ i < $ intLength ) { $ strBuffer .= $ strFile [ $ i ++ ] ; if ( $ strFile [ $ i ] == '{' ) { ++ $ i ; $ strSelector = $ strBuffer ; $ strBuffer = '' ; } elseif ( $ strFile [ $ i ] == '}' ) { $ arrTokens [ ] = array ( 'type' => 'block' , 'selector' => $ strSelector , 'content' => $ strBuffer ) ; $ strBuffer = '' ; break ; } } } } foreach ( $ arrTokens as $ arrToken ) { // Comments if ( $ arrToken [ 'type' ] == 'comment' ) { // Category (comments start with /** and contain only one line) if ( strncmp ( $ arrToken [ 'content' ] , '/**' , 3 ) === 0 && substr_count ( $ arrToken [ 'content' ] , "\n" ) == 2 ) { $ strCategory = trim ( str_replace ( array ( '/*' , '*/' , '*' ) , '' , $ arrToken [ 'content' ] ) ) ; } // Declaration comment elseif ( strpos ( $ arrToken [ 'content' ] , "\n" ) === false ) { $ strComment = trim ( str_replace ( array ( '/*' , '*/' , '*' ) , '' , $ arrToken [ 'content' ] ) ) ; } } // At blocks like @media or @-webkit-keyframe elseif ( $ arrToken [ 'type' ] == 'atblock' ) { $ arrSet = array ( 'pid' => $ insertId , 'category' => $ strCategory , 'comment' => $ strComment , 'sorting' => $ intSorting += 128 , 'selector' => trim ( $ arrToken [ 'selector' ] ) , 'own' => $ arrToken [ 'content' ] ) ; $ this -> Database -> prepare ( "INSERT INTO tl_style %s" ) -> set ( $ arrSet ) -> execute ( ) ; $ strComment = '' ; } // Regular blocks else { $ arrDefinition = array ( 'pid' => $ insertId , 'category' => $ strCategory , 'comment' => $ strComment , 'sorting' => $ intSorting += 128 , 'selector' => trim ( $ arrToken [ 'selector' ] ) , 'attributes' => $ arrToken [ 'content' ] ) ; $ this -> createDefinition ( $ arrDefinition ) ; $ strComment = '' ; } } // Write the style sheet $ this -> updateStyleSheet ( $ insertId ) ; // Notify the user if ( $ strName . '.css' != basename ( $ strCssFile ) ) { Message :: addInfo ( sprintf ( $ GLOBALS [ 'TL_LANG' ] [ 'tl_style_sheet' ] [ 'css_renamed' ] , basename ( $ strCssFile ) , $ strName . '.css' ) ) ; } else { Message :: addConfirmation ( sprintf ( $ GLOBALS [ 'TL_LANG' ] [ 'tl_style_sheet' ] [ 'css_imported' ] , $ strName . '.css' ) ) ; } } // Redirect System :: setCookie ( 'BE_PAGE_OFFSET' , 0 , 0 ) ; $ this -> redirect ( str_replace ( '&key=import' , '' , Environment :: get ( 'request' ) ) ) ; } // Return form return Message :: generate ( ) . '
<div id="tl_buttons">
<a href="' . ampersand ( str_replace ( '&key=import' , '' , Environment :: get ( 'request' ) ) ) . '" class="header_back" title="' . StringUtil :: specialchars ( $ GLOBALS [ 'TL_LANG' ] [ 'MSC' ] [ 'backBTTitle' ] ) . '" accesskey="b">' . $ GLOBALS [ 'TL_LANG' ] [ 'MSC' ] [ 'backBT' ] . '</a>
</div>
<form action="' . ampersand ( Environment :: get ( 'request' ) , true ) . '" id="tl_style_sheet_import" class="tl_form tl_edit_form" method="post" enctype="multipart/form-data">
<div class="tl_formbody_edit">
<input type="hidden" name="FORM_SUBMIT" value="tl_style_sheet_import">
<input type="hidden" name="REQUEST_TOKEN" value="' . REQUEST_TOKEN . '">
<input type="hidden" name="MAX_FILE_SIZE" value="' . Config :: get ( 'maxFileSize' ) . '">

<div class="tl_tbox">
  <div class="widget">
    <h3>' . $ GLOBALS [ 'TL_LANG' ] [ 'tl_style_sheet' ] [ 'source' ] [ 0 ] . '</h3>' . $ objUploader -> generateMarkup ( ) . ( isset ( $ GLOBALS [ 'TL_LANG' ] [ 'tl_style_sheet' ] [ 'source' ] [ 1 ] ) ? '
    <p class="tl_help tl_tip">' . $ GLOBALS [ 'TL_LANG' ] [ 'tl_style_sheet' ] [ 'source' ] [ 1 ] . '</p>' : '' ) . '
  </div>
</div>

</div>

<div class="tl_formbody_submit">

<div class="tl_submit_container">
  <button type="submit" name="save" id="save" class="tl_submit" accesskey="s">' . $ GLOBALS [ 'TL_LANG' ] [ 'tl_style_sheet' ] [ 'import' ] [ 0 ] . '</button>
</div>

</div>
</form>' ; }
Return a form to choose an existing style sheet and import it

@return string

@throws \Exception
Return a form to choose an existing style sheet and import it