646 lines
23 KiB
PHP
646 lines
23 KiB
PHP
<?php
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/**
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* 2007-2018 PrestaShop.
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*
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* NOTICE OF LICENSE
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*
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* This source file is subject to the Open Software License (OSL 3.0)
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* that is bundled with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* https://opensource.org/licenses/OSL-3.0
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@prestashop.com so we can send you a copy immediately.
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*
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* DISCLAIMER
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*
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* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
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* versions in the future. If you wish to customize PrestaShop for your
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* needs please refer to http://www.prestashop.com for more information.
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*
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* @author PrestaShop SA <contact@prestashop.com>
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* @copyright 2007-2018 PrestaShop SA
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* @license https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
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* International Registered Trademark & Property of PrestaShop SA
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*/
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/**
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* Class ImageManagerCore.
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*
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* This class includes functions for image manipulation
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*
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* @since 1.5.0
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*/
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class ImageManagerCore
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{
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const ERROR_FILE_NOT_EXIST = 1;
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const ERROR_FILE_WIDTH = 2;
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const ERROR_MEMORY_LIMIT = 3;
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/**
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* Generate a cached thumbnail for object lists (eg. carrier, order statuses...etc).
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*
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* @param string $image Real image filename
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* @param string $cacheImage Cached filename
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* @param int $size Desired size
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* @param string $imageType Image type
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* @param bool $disableCache When turned on a timestamp will be added to the image URI to disable the HTTP cache
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* @param bool $regenerate When turned on and the file already exist, the file will be regenerated
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*
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*@return string
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*/
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public static function thumbnail($image, $cacheImage, $size, $imageType = 'jpg', $disableCache = true, $regenerate = false)
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{
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if (!file_exists($image)) {
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return '';
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}
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if (file_exists(_PS_TMP_IMG_DIR_ . $cacheImage) && $regenerate) {
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@unlink(_PS_TMP_IMG_DIR_ . $cacheImage);
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}
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if ($regenerate || !file_exists(_PS_TMP_IMG_DIR_ . $cacheImage)) {
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$infos = getimagesize($image);
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// Evaluate the memory required to resize the image: if it's too much, you can't resize it.
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if (!ImageManager::checkImageMemoryLimit($image)) {
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return false;
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}
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$x = $infos[0];
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$y = $infos[1];
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$maxX = $size * 3;
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// Size is already ok
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if ($y < $size && $x <= $maxX) {
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copy($image, _PS_TMP_IMG_DIR_ . $cacheImage);
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} else {
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// We need to resize */
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$ratioX = $x / ($y / $size);
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if ($ratioX > $maxX) {
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$ratioX = $maxX;
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$size = $y / ($x / $maxX);
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}
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ImageManager::resize($image, _PS_TMP_IMG_DIR_ . $cacheImage, $ratioX, $size, $imageType);
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}
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}
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return '<img src="' . self::getThumbnailPath($cacheImage, $disableCache) . '" alt="" class="imgm img-thumbnail" />';
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}
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/**
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* @param $cacheImage
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* @param $disableCache
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*
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* @return string
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*/
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public static function getThumbnailPath($cacheImage, $disableCache)
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{
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$cacheParam = $disableCache ? '?time=' . time() : '';
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if (Context::getContext()->controller->controller_type == 'admin') {
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return '../img/tmp/' . $cacheImage . $cacheParam;
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}
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return _PS_TMP_IMG_ . $cacheImage . $cacheParam;
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}
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/**
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* Check if memory limit is too long or not.
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*
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* @param mixed $image
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*
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* @return bool
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*/
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public static function checkImageMemoryLimit($image)
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{
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$infos = @getimagesize($image);
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if (!is_array($infos) || !isset($infos['bits'])) {
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return true;
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}
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$memoryLimit = Tools::getMemoryLimit();
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// memory_limit == -1 => unlimited memory
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if (function_exists('memory_get_usage') && (int) $memoryLimit != -1) {
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$currentMemory = memory_get_usage();
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$channel = isset($infos['channels']) ? ($infos['channels'] / 8) : 1;
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// Evaluate the memory required to resize the image: if it's too much, you can't resize it.
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// For perfs, avoid computing static maths formulas in the code. pow(2, 16) = 65536 ; 1024 * 1024 = 1048576
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if (($infos[0] * $infos[1] * $infos['bits'] * $channel + 65536) * 1.8 + $currentMemory > $memoryLimit - 1048576) {
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return false;
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}
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}
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return true;
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}
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/**
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* Resize, cut and optimize image.
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*
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* @param string $sourceFile Image object from $_FILE
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* @param string $destinationFile Destination filename
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* @param int $destinationWidth Desired width (optional)
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* @param int $destinationHeight Desired height (optional)
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* @param string $fileType Desired file_type (may be override by PS_IMAGE_QUALITY)
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* @param bool $forceType Don't override $file_type
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* @param int $error Out error code
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* @param int $targetWidth Needed by AdminImportController to speed up the import process
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* @param int $targetHeight Needed by AdminImportController to speed up the import process
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* @param int $quality Needed by AdminImportController to speed up the import process
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* @param int $sourceWidth Needed by AdminImportController to speed up the import process
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* @param int $sourceHeight Needed by AdminImportController to speed up the import process
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*
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*@return bool Operation result
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*/
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public static function resize(
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$sourceFile,
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$destinationFile,
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$destinationWidth = null,
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$destinationHeight = null,
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$fileType = 'jpg',
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$forceType = false,
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&$error = 0,
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&$targetWidth = null,
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&$targetHeight = null,
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$quality = 5,
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&$sourceWidth = null,
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&$sourceHeight = null
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) {
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clearstatcache(true, $sourceFile);
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if (!file_exists($sourceFile) || !filesize($sourceFile)) {
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return !($error = self::ERROR_FILE_NOT_EXIST);
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}
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list($tmpWidth, $tmpHeight, $type) = getimagesize($sourceFile);
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$rotate = 0;
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if (function_exists('exif_read_data') && function_exists('mb_strtolower')) {
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$exif = @exif_read_data($sourceFile);
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if ($exif && isset($exif['Orientation'])) {
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switch ($exif['Orientation']) {
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case 3:
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$sourceWidth = $tmpWidth;
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$sourceHeight = $tmpHeight;
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$rotate = 180;
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break;
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case 6:
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$sourceWidth = $tmpHeight;
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$sourceHeight = $tmpWidth;
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$rotate = -90;
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break;
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case 8:
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$sourceWidth = $tmpHeight;
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$sourceHeight = $tmpWidth;
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$rotate = 90;
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break;
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default:
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$sourceWidth = $tmpWidth;
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$sourceHeight = $tmpHeight;
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}
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} else {
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$sourceWidth = $tmpWidth;
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$sourceHeight = $tmpHeight;
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}
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} else {
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$sourceWidth = $tmpWidth;
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$sourceHeight = $tmpHeight;
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}
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// If PS_IMAGE_QUALITY is activated, the generated image will be a PNG with .jpg as a file extension.
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// This allow for higher quality and for transparency. JPG source files will also benefit from a higher quality
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// because JPG reencoding by GD, even with max quality setting, degrades the image.
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if (Configuration::get('PS_IMAGE_QUALITY') == 'png_all'
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|| (Configuration::get('PS_IMAGE_QUALITY') == 'png' && $type == IMAGETYPE_PNG) && !$forceType) {
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$fileType = 'png';
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}
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if (!$sourceWidth) {
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return !($error = self::ERROR_FILE_WIDTH);
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}
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if (!$destinationWidth) {
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$destinationWidth = $sourceWidth;
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}
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if (!$destinationHeight) {
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$destinationHeight = $sourceHeight;
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}
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$widthDiff = $destinationWidth / $sourceWidth;
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$heightDiff = $destinationHeight / $sourceHeight;
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$psImageGenerationMethod = Configuration::get('PS_IMAGE_GENERATION_METHOD');
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if ($widthDiff > 1 && $heightDiff > 1) {
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$nextWidth = $sourceWidth;
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$nextHeight = $sourceHeight;
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} else {
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if ($psImageGenerationMethod == 2 || (!$psImageGenerationMethod && $widthDiff > $heightDiff)) {
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$nextHeight = $destinationHeight;
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$nextWidth = round(($sourceWidth * $nextHeight) / $sourceHeight);
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$destinationWidth = (int) (!$psImageGenerationMethod ? $destinationWidth : $nextWidth);
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} else {
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$nextWidth = $destinationWidth;
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$nextHeight = round($sourceHeight * $destinationWidth / $sourceWidth);
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$destinationHeight = (int) (!$psImageGenerationMethod ? $destinationHeight : $nextHeight);
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}
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}
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if (!ImageManager::checkImageMemoryLimit($sourceFile)) {
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return !($error = self::ERROR_MEMORY_LIMIT);
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}
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$targetWidth = $destinationWidth;
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$targetHeight = $destinationHeight;
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$destImage = imagecreatetruecolor($destinationWidth, $destinationHeight);
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// If image is a PNG and the output is PNG, fill with transparency. Else fill with white background.
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if ($fileType == 'png' && $type == IMAGETYPE_PNG) {
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imagealphablending($destImage, false);
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imagesavealpha($destImage, true);
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$transparent = imagecolorallocatealpha($destImage, 255, 255, 255, 127);
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imagefilledrectangle($destImage, 0, 0, $destinationWidth, $destinationHeight, $transparent);
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} else {
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$white = imagecolorallocate($destImage, 255, 255, 255);
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imagefilledrectangle($destImage, 0, 0, $destinationWidth, $destinationHeight, $white);
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}
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$srcImage = ImageManager::create($type, $sourceFile);
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if ($rotate) {
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$srcImage = imagerotate($srcImage, $rotate, 0);
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}
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if ($destinationWidth >= $sourceWidth && $destinationHeight >= $sourceHeight) {
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imagecopyresized($destImage, $srcImage, (int) (($destinationWidth - $nextWidth) / 2), (int) (($destinationHeight - $nextHeight) / 2), 0, 0, $nextWidth, $nextHeight, $sourceWidth, $sourceHeight);
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} else {
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ImageManager::imagecopyresampled($destImage, $srcImage, (int) (($destinationWidth - $nextWidth) / 2), (int) (($destinationHeight - $nextHeight) / 2), 0, 0, $nextWidth, $nextHeight, $sourceWidth, $sourceHeight, $quality);
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}
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$writeFile = ImageManager::write($fileType, $destImage, $destinationFile);
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Hook::exec('actionOnImageResizeAfter', array('dst_file' => $destinationFile, 'file_type' => $fileType));
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@imagedestroy($srcImage);
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file_put_contents(
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dirname($destinationFile) . DIRECTORY_SEPARATOR . 'fileType',
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$fileType
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);
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return $writeFile;
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}
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/**
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* @param $dstImage
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* @param $srcImage
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* @param $dstX
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* @param $dstY
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* @param $srcX
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* @param $srcY
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* @param $dstW
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* @param $dstH
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* @param $srcW
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* @param $srcH
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* @param int $quality
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*
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* @return bool
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*/
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public static function imagecopyresampled(
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&$dstImage,
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$srcImage,
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$dstX,
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$dstY,
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$srcX,
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$srcY,
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$dstW,
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$dstH,
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$srcW,
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$srcH,
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$quality = 3
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) {
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// Plug-and-Play fastimagecopyresampled function replaces much slower imagecopyresampled.
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// Just include this function and change all "imagecopyresampled" references to "fastimagecopyresampled".
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// Typically from 30 to 60 times faster when reducing high resolution images down to thumbnail size using the default quality setting.
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// Author: Tim Eckel - Date: 09/07/07 - Version: 1.1 - Project: FreeRingers.net - Freely distributable - These comments must remain.
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//
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// Optional "quality" parameter (defaults is 3). Fractional values are allowed, for example 1.5. Must be greater than zero.
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// Between 0 and 1 = Fast, but mosaic results, closer to 0 increases the mosaic effect.
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// 1 = Up to 350 times faster. Poor results, looks very similar to imagecopyresized.
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// 2 = Up to 95 times faster. Images appear a little sharp, some prefer this over a quality of 3.
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// 3 = Up to 60 times faster. Will give high quality smooth results very close to imagecopyresampled, just faster.
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// 4 = Up to 25 times faster. Almost identical to imagecopyresampled for most images.
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// 5 = No speedup. Just uses imagecopyresampled, no advantage over imagecopyresampled.
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if (empty($srcImage) || empty($dstImage) || $quality <= 0) {
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return false;
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}
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if ($quality < 5 && (($dstW * $quality) < $srcW || ($dstH * $quality) < $srcH)) {
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$temp = imagecreatetruecolor($dstW * $quality + 1, $dstH * $quality + 1);
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imagecopyresized($temp, $srcImage, 0, 0, $srcX, $srcY, $dstW * $quality + 1, $dstH * $quality + 1, $srcW, $srcH);
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imagecopyresampled($dstImage, $temp, $dstX, $dstY, 0, 0, $dstW, $dstH, $dstW * $quality, $dstH * $quality);
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imagedestroy($temp);
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} else {
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imagecopyresampled($dstImage, $srcImage, $dstX, $dstY, $srcX, $srcY, $dstW, $dstH, $srcW, $srcH);
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}
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return true;
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}
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/**
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* Check if file is a real image.
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*
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* @param string $filename File path to check
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* @param string $fileMimeType File known mime type (generally from $_FILES)
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* @param array $mimeTypeList Allowed MIME types
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*
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* @return bool
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*/
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public static function isRealImage($filename, $fileMimeType = null, $mimeTypeList = null)
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{
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// Detect mime content type
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$mimeType = false;
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if (!$mimeTypeList) {
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$mimeTypeList = array('image/gif', 'image/jpg', 'image/jpeg', 'image/pjpeg', 'image/png', 'image/x-png');
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}
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// Try 4 different methods to determine the mime type
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if (function_exists('getimagesize')) {
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$imageInfo = @getimagesize($filename);
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if ($imageInfo) {
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$mimeType = $imageInfo['mime'];
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} else {
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$fileMimeType = false;
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}
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} elseif (function_exists('finfo_open')) {
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$const = defined('FILEINFO_MIME_TYPE') ? FILEINFO_MIME_TYPE : FILEINFO_MIME;
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$finfo = finfo_open($const);
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$mimeType = finfo_file($finfo, $filename);
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finfo_close($finfo);
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} elseif (function_exists('mime_content_type')) {
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$mimeType = mime_content_type($filename);
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} elseif (function_exists('exec')) {
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$mimeType = trim(exec('file -b --mime-type ' . escapeshellarg($filename)));
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if (!$mimeType) {
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$mimeType = trim(exec('file --mime ' . escapeshellarg($filename)));
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}
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if (!$mimeType) {
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$mimeType = trim(exec('file -bi ' . escapeshellarg($filename)));
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}
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}
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if ($fileMimeType && (empty($mimeType) || $mimeType == 'regular file' || $mimeType == 'text/plain')) {
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$mimeType = $fileMimeType;
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}
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// For each allowed MIME type, we are looking for it inside the current MIME type
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foreach ($mimeTypeList as $type) {
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if (strstr($mimeType, $type)) {
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return true;
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}
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}
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return false;
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}
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/**
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* Check if image file extension is correct.
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*
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* @param string $filename Real filename
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* @param array|null $authorizedExtensions
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*
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* @return bool True if it's correct
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*/
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public static function isCorrectImageFileExt($filename, $authorizedExtensions = null)
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{
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// Filter on file extension
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if ($authorizedExtensions === null) {
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$authorizedExtensions = array('gif', 'jpg', 'jpeg', 'jpe', 'png');
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}
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$nameExplode = explode('.', $filename);
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if (count($nameExplode) >= 2) {
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$currentExtension = strtolower($nameExplode[count($nameExplode) - 1]);
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if (!in_array($currentExtension, $authorizedExtensions)) {
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return false;
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}
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} else {
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return false;
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}
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return true;
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}
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/**
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* Validate image upload (check image type and weight).
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*
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* @param array $file Upload $_FILE value
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* @param int $maxFileSize Maximum upload size
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*
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* @return bool|string Return false if no error encountered
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*/
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public static function validateUpload($file, $maxFileSize = 0, $types = null)
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{
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if ((int) $maxFileSize > 0 && $file['size'] > (int) $maxFileSize) {
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return Context::getContext()->getTranslator()->trans('Image is too large (%1$d kB). Maximum allowed: %2$d kB', array($file['size'] / 1024, $maxFileSize / 1024), 'Admin.Notifications.Error');
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}
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if (!ImageManager::isRealImage($file['tmp_name'], $file['type']) || !ImageManager::isCorrectImageFileExt($file['name'], $types) || preg_match('/\%00/', $file['name'])) {
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return Context::getContext()->getTranslator()->trans('Image format not recognized, allowed formats are: .gif, .jpg, .png', array(), 'Admin.Notifications.Error');
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}
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if ($file['error']) {
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return Context::getContext()->getTranslator()->trans('Error while uploading image; please change your server\'s settings. (Error code: %s)', array($file['error']), 'Admin.Notifications.Error');
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}
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return false;
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}
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/**
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* Validate icon upload.
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*
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* @param array $file Upload $_FILE value
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* @param int $maxFileSize Maximum upload size
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*
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* @return bool|string Return false if no error encountered
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*/
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public static function validateIconUpload($file, $maxFileSize = 0)
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{
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if ((int) $maxFileSize > 0 && $file['size'] > $maxFileSize) {
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return Context::getContext()->getTranslator()->trans('Image is too large (%1$d kB). Maximum allowed: %2$d kB', array($file['size'] / 1000, $maxFileSize / 1000), 'Admin.Notifications.Error');
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}
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if (substr($file['name'], -4) != '.ico') {
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return Context::getContext()->getTranslator()->trans('Image format not recognized, allowed formats are: .ico', array(), 'Admin.Notifications.Error');
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}
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if ($file['error']) {
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return Context::getContext()->getTranslator()->trans('Error while uploading image; please change your server\'s settings.', array(), 'Admin.Notifications.Error');
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}
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|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Cut image.
|
|
*
|
|
* @param array $srcFile Origin filename
|
|
* @param string $dstFile Destination filename
|
|
* @param int $dstWidth Desired width
|
|
* @param int $dstHeight Desired height
|
|
* @param string $fileType
|
|
* @param int $dstX
|
|
* @param int $dstY
|
|
*
|
|
* @return bool Operation result
|
|
*/
|
|
public static function cut($srcFile, $dstFile, $dstWidth = null, $dstHeight = null, $fileType = 'jpg', $dstX = 0, $dstY = 0)
|
|
{
|
|
if (!file_exists($srcFile)) {
|
|
return false;
|
|
}
|
|
|
|
// Source information
|
|
$srcInfo = getimagesize($srcFile);
|
|
$src = array(
|
|
'width' => $srcInfo[0],
|
|
'height' => $srcInfo[1],
|
|
'ressource' => ImageManager::create($srcInfo[2], $srcFile),
|
|
);
|
|
|
|
// Destination information
|
|
$dest = array();
|
|
$dest['x'] = $dstX;
|
|
$dest['y'] = $dstY;
|
|
$dest['width'] = !is_null($dstWidth) ? $dstWidth : $src['width'];
|
|
$dest['height'] = !is_null($dstHeight) ? $dstHeight : $src['height'];
|
|
$dest['ressource'] = ImageManager::createWhiteImage($dest['width'], $dest['height']);
|
|
|
|
$white = imagecolorallocate($dest['ressource'], 255, 255, 255);
|
|
imagecopyresampled($dest['ressource'], $src['ressource'], 0, 0, $dest['x'], $dest['y'], $dest['width'], $dest['height'], $dest['width'], $dest['height']);
|
|
imagecolortransparent($dest['ressource'], $white);
|
|
$return = ImageManager::write($fileType, $dest['ressource'], $dstFile);
|
|
Hook::exec('actionOnImageCutAfter', array('dst_file' => $dstFile, 'file_type' => $fileType));
|
|
@imagedestroy($src['ressource']);
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Create an image with GD extension from a given type.
|
|
*
|
|
* @param string $type
|
|
* @param string $filename
|
|
*
|
|
* @return resource
|
|
*/
|
|
public static function create($type, $filename)
|
|
{
|
|
switch ($type) {
|
|
case IMAGETYPE_GIF:
|
|
return imagecreatefromgif($filename);
|
|
break;
|
|
|
|
case IMAGETYPE_PNG:
|
|
return imagecreatefrompng($filename);
|
|
break;
|
|
|
|
case IMAGETYPE_JPEG:
|
|
default:
|
|
return imagecreatefromjpeg($filename);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Create an empty image with white background.
|
|
*
|
|
* @param int $width
|
|
* @param int $height
|
|
*
|
|
* @return resource
|
|
*/
|
|
public static function createWhiteImage($width, $height)
|
|
{
|
|
$image = imagecreatetruecolor($width, $height);
|
|
$white = imagecolorallocate($image, 255, 255, 255);
|
|
imagefill($image, 0, 0, $white);
|
|
|
|
return $image;
|
|
}
|
|
|
|
/**
|
|
* Generate and write image.
|
|
*
|
|
* @param string $type
|
|
* @param resource $resource
|
|
* @param string $filename
|
|
*
|
|
* @return bool
|
|
*/
|
|
public static function write($type, $resource, $filename)
|
|
{
|
|
static $psPngQuality = null;
|
|
static $psJpegQuality = null;
|
|
|
|
if ($psPngQuality === null) {
|
|
$psPngQuality = Configuration::get('PS_PNG_QUALITY');
|
|
}
|
|
|
|
if ($psJpegQuality === null) {
|
|
$psJpegQuality = Configuration::get('PS_JPEG_QUALITY');
|
|
}
|
|
|
|
switch ($type) {
|
|
case 'gif':
|
|
$success = imagegif($resource, $filename);
|
|
break;
|
|
|
|
case 'png':
|
|
$quality = ($psPngQuality === false ? 7 : $psPngQuality);
|
|
$success = imagepng($resource, $filename, (int) $quality);
|
|
break;
|
|
|
|
case 'jpg':
|
|
case 'jpeg':
|
|
default:
|
|
$quality = ($psJpegQuality === false ? 90 : $psJpegQuality);
|
|
imageinterlace($resource, 1); /// make it PROGRESSIVE
|
|
$success = imagejpeg($resource, $filename, (int) $quality);
|
|
break;
|
|
}
|
|
imagedestroy($resource);
|
|
@chmod($filename, 0664);
|
|
|
|
return $success;
|
|
}
|
|
|
|
/**
|
|
* Return the mime type by the file extension.
|
|
*
|
|
* @param string $fileName
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function getMimeTypeByExtension($fileName)
|
|
{
|
|
$types = array(
|
|
'image/gif' => array('gif'),
|
|
'image/jpeg' => array('jpg', 'jpeg'),
|
|
'image/png' => array('png'),
|
|
);
|
|
$extension = substr($fileName, strrpos($fileName, '.') + 1);
|
|
|
|
$mimeType = null;
|
|
foreach ($types as $mime => $exts) {
|
|
if (in_array($extension, $exts)) {
|
|
$mimeType = $mime;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ($mimeType === null) {
|
|
$mimeType = 'image/jpeg';
|
|
}
|
|
|
|
return $mimeType;
|
|
}
|
|
}
|