MailBlockBase::getById

static function getById($blockName)
{
	$result = null;
	$type = null;

	$arBlockByType = static::getBlockListByType();
	foreach($arBlockByType as $searchType => $arBlock)
	{
		foreach ($arBlock as $searchBlockName)
		{
			if($blockName == $searchBlockName)
			{
				$type = $searchType;
				break;
			}
		}
	}

	$fullPathOfFile = BitrixMainLoader::getLocal(static::LOCAL_DIR_BLOCK . bx_basename($blockName) . '.html');
	if ($fullPathOfFile)
	{
		$fileContent = File::getFileContents($fullPathOfFile);

		if($blockName == 'unsub')
		{
			$fileContent = str_replace(
				array('%TEXT_UNSUB_TEXT%', '%TEXT_UNSUB_LINK%'),
				array(
					Loc::getMessage('PRESET_MAILBLOCK_' . $blockName.'_TEXT_UNSUB_TEXT'),
					Loc::getMessage('PRESET_MAILBLOCK_' . $blockName.'_TEXT_UNSUB_LINK')
				),
				$fileContent
			);
		}

		$result = array(
			'TYPE' => Loc::getMessage('TYPE_PRESET_MAILBLOCK_'.$type),
			'CODE' => $blockName,
			'NAME' => Loc::getMessage('PRESET_MAILBLOCK_' . $blockName),
			'ICON' => '',
			'HTML' => $fileContent
		);
	}


	return $result;
}