CWikiParser::_processFileCallback

function _processFileCallback($matches)
{
	static $sImageAlign = '';
	$bLink = false;
	if ($matches[1] == ':')
		$bLink = true;

	// if the internal file then get it
	$sFile = $sFileName = $sPath = CWikiUtils::htmlspecialcharsback(trim($matches[3]));
	$bOur = false;

	if (is_numeric($sFile) && in_array($sFile, $this->arFile))
	{
		$arFile = CFile::GetFileArray($sFile);
		if ($arFile != false)
		{
			$bOur = true;
			$sPath = $arFile['SRC'];
			$sFileName = $arFile['ORIGINAL_NAME'];
		}
	}
	else if (isset($this->arVersionFile[mb_strtolower($sFile)]))
	{
		$sPath = $this->arVersionFile[mb_strtolower($sFile)];
		$sFileName = $sFile;
	}
	else if (!empty($this->arFile))
	{
		$arFilter = array(
			'@ID' => implode(',', $this->arFile)
		);

		$rsFile = CFile::GetList(array(), $arFilter);
		while($arFile = $rsFile->Fetch())
		{
			if ($arFile['ORIGINAL_NAME'] == $sFile)
			{
				$bOur = true;
				$sFile = $arFile['ID'];

				$sPath = CFile::GetFileSRC($arFile);
				$sFileName = $arFile['ORIGINAL_NAME'];
				break;
			}
		}
	}

	// if the image is processed as a picture
	$sName = bx_basename($sPath);

	if (CFile::IsImage($sName))
	{
		if ($bOur)
		{
			$imageFile = CFile::MakeFileArray($sPath);
			$checkRes = CFile::CheckImageFile($imageFile);

			if($checkRes != null)
				return $checkRes;

			if ($bLink)
				$sReturn = ''.$s.'';
			else
			{
				$sReturn  = CFile::ShowImage($sFile,
					COption::GetOptionString('wiki', 'image_max_width', 600),
					COption::GetOptionString('wiki', 'image_max_height', 600),
					'border="0" align="'.$sImageAlign.'"'
				);
			}
		}
		else
		{
			if ($bLink)
				$sReturn = ''.$s.'';
			else
				$sReturn = '';
		}
	}
	else if (mb_strpos($sPath, 'http://') === 0)
		$sReturn = ' [ '.GetMessage('FILE_DOWNLOAD').' ] ';
	// otherwise the file
	else
		$sReturn = '['.GetMessage('FILE_NAME').':'.htmlspecialcharsbx((is_numeric($sFile)  || empty($sFileName) ? $sFile : $sFileName)).']';

	return $sReturn;
}