paypal_logos.php

<?php
/**
* 2007-2015 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Academic Free License (AFL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/afl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
*  @author    PrestaShop SA <contact@prestashop.com>
*  @copyright 2007-2015 PrestaShop SA
*  @license   http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

if (!defined('_PS_VERSION_'))
	exit;

class PayPalLogos
{
	private $iso_code = null;

	const LOCAL = 'Local';
	const HORIZONTAL = 'Horizontal';
	const VERTICAL = 'Vertical';

	public function __construct($iso_code)
	{
		$this->iso_code = $iso_code;
	}

	public function getLogos()
	{
		$file = dirname(__FILE__).'/'._PAYPAL_LOGO_XML_;

		if (!file_exists($file))
			return false;

		$xml = simplexml_load_file($file);
		$logos = array();
		
		if (isset($xml) && $xml != false)
		{
			foreach ($xml->country as $item)
			{
				$tmp_iso_code = (string)$item->attributes()->iso_code;
				$logos[$tmp_iso_code] = (array)$item;
			}

			if (!isset($logos[$this->iso_code]))
				$result = $this->getLocalLogos($logos['default'], 'default');
			else
				$result = $this->getLocalLogos($logos[$this->iso_code], $this->iso_code);
				
			$result['default'] = $this->getLocalLogos($logos['default'], 'default');

			return $result;
		}

		return false;
	}

	public function getCardsLogo($vertical = false)
	{
		$logos = $this->getLogos();

		$orientation = $vertical === true ? self::VERTICAL : self::HORIZONTAL;
		$logo_ref = self::LOCAL.'PayPal'.$orientation.'SolutionPP';

		if (array_key_exists($logo_ref, $logos))
			return $logos[$logo_ref];
		elseif (($vertical !== false) && isset($logos[self::LOCAL.'PayPal'.self::HORIZONTAL.'SolutionPP']))
			return $logos[self::LOCAL.'PayPal'.self::HORIZONTAL.'SolutionPP'];

		if (isset($logos['default'][self::LOCAL.'Local'.$orientation.'SolutionPP']))
			return _MODULE_DIR_._PAYPAL_MODULE_DIRNAME_.$logos['default'][self::LOCAL.'Local'.$orientation.'SolutionPP'];

		return false;
	}

	public function getLocalLogos(array $values, $iso_code)
	{
		foreach ($values as $key => $value)
			if (!is_array($value))
			{
				// Search for image file name
				preg_match('#.*/([\w._-]*)$#', $value, $logo);

				if ((count($logo) == 2) && (strstr($key, 'Local') === false))
				{
					$destination = _PAYPAL_MODULE_DIRNAME_.'/views/img/logos/'.$iso_code.'_'.$logo[1];
					$this->updatePictures($logo[0], $destination);

					// Define the local path after picture have been downloaded
					$values['Local'.$key] = _MODULE_DIR_.$destination;

					// Load back office cards path
					if (file_exists(dirname(__FILE__).'/views/img/bo-cards/'.Tools::strtoupper($iso_code).'_bo_cards.png'))
						$values['BackOfficeCards'] = _MODULE_DIR_._PAYPAL_MODULE_DIRNAME_.'/views/img/bo-cards/'.Tools::strtoupper($iso_code).'_bo_cards.png';
					else if (file_exists(dirname(__FILE__).'/views/img/bo-cards/default.png'))
						$values['BackOfficeCards'] = _MODULE_DIR_._PAYPAL_MODULE_DIRNAME_.'/views/img/bo-cards/default.png';
				}
				// Use the local version
				else if (isset($values['Local'.$key]))
					$values['Local'.$key] = _MODULE_DIR_._PAYPAL_MODULE_DIRNAME_.$values['Local'.$key];
			}

		return $values;
	}

	private function updatePictures($source, $destination, $force = false)
	{
		$wrappers = stream_get_wrappers();
		$https_wrapper = in_array('https', $wrappers) ? true : false;

		// 604800 => One week timestamp
		if (!file_exists(_PS_MODULE_DIR_.$destination) || ((time() - filemtime(_PS_MODULE_DIR_.$destination)) > 604800) || $force)
		{
			$picture = Tools::file_get_contents($source);
			if ((bool)$picture !== false)
			{
				if ($handle = @fopen(_PS_MODULE_DIR_.$destination, 'w+'))
				{
					$size = fwrite($handle, $picture);
					if ($size > 0 || (file_exists(_MODULE_DIR_.$destination) && (@filesize(_MODULE_DIR_.$destination) > 0)))
						return _MODULE_DIR_.$destination;
				}
			}
			elseif (strstr($source, 'https'))
				return $this->updatePictures(str_replace('https', 'http', $source), $destination);
			else
				return false;
		}

		return _MODULE_DIR_.$destination;
	}
}