Your IP : 10.10.0.253
<?php
/**
* Helper class for generating thumbnails
* @package News Show Pro GK5
* @Copyright (C) 2009-2013 Gavick.com
* @ All rights reserved
* @ Joomla! is Free Software
* @license - http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
* @version $Revision: GK5 1.3.5 $
**/
// access restriction
defined('_JEXEC') or die('Restricted access');
/*
This class uses options of module:
- cache time
- quality
- image width
- image height
- background color
- image stretch
*/
class NSP_GK5_Thumbs {
/*
function to change file path to filename.
For example:
./images/stories/demo.jpg
will be translated to:
stories.demo.jpg
(in this situation mirror of ./images/ directory isn't necessary)
*/
static function translateName($name,$mod_id, $k2_mode = false, $vm_mode = false, $image_type = '', $downloaded = false, $filename = null, $links = false, $hikashop_mode = false, $solidres_mode = false) {
// check the mode
if($downloaded || stripos($name, 'http://') !== FALSE || stripos($name, 'https://') !== FALSE) {
if($downloaded) {
$name = 'downloaded.' . $filename;
$ext = substr($name, -4);
$name = substr($name, 0, -4);
return $name . $mod_id . ($links ? '_links' : '') . $ext;
} else {
$slashpos = strrpos($name, '/');
$filename = substr($name, $slashpos + 1);
$name = 'downloaded.' . $filename;
$ext = substr($name, -4);
$name = substr($name, 0, -4);
return $name . $mod_id . ($links ? '_links' : '') . $ext;
}
} else {
$name = NSP_GK5_Thumbs::getRealPath($name, $k2_mode, $vm_mode, $hikashop_mode);
$start = ($k2_mode || $vm_mode || $hikashop_mode || $solidres_mode) ? (($k2_mode || $hikashop_mode || $solidres_mode) ? strpos($name, DS.'media'.DS) : strpos($name, DS.'components'.DS)) : strpos($name, DS.'images'.DS);
$name = ($k2_mode || $vm_mode) ? (($k2_mode) ? substr($name, $start+7) : substr($name, $start+12)) : substr($name, $start+8);
$ext = substr($name, -4);
$name = substr($name, 0, -4);
$name = str_replace(DS,'.',$name);
$name .= $mod_id . $image_type . ($links ? '_links' : '') . $ext;
return $name;
}
}
// the same function for the output
/*function translateNameOutput($name,$mod_id, $k2_mode = false, $vm_mode = false, $image_type = '') {
$name = NSP_GK5_Thumbs::getRealPath($name, $k2_mode, $vm_mode);
$start = ($k2_mode || $vm_mode) ? (($k2_mode) ? strpos($name, DS.'media'.DS) : strpos($name, DS.'components'.DS)) : strpos($name, DS.'images'.DS);
$name = ($k2_mode || $vm_mode) ? (($k2_mode) ? substr($name, $start+7) : substr($name, $start+12)) : substr($name, $start+8);
$ext = substr($name, -4);
$name = substr($name, 0, -4);
$name = str_replace(DS,'.',$name);
$name .= $mod_id.$image_type.$ext;
$special = NSP_GK5_Thumbs::checkSpecialImages($name);
if($special > 0) {
if($special == 1) {
$name = substr($name, 0, -4);
$name = str_replace(DS,'.',$name);
$name .= '_cropped'.$ext;
}
if($special == 2) {
$name = substr($name, 0, -4);
$name = str_replace(DS,'.',$name);
$name .= '_noscale'.$ext;
}
}
return $name;
}*/
// function used to get the custom media path
static function getMediaPath() {
$imagemanager = JComponentHelper::getParams('com_media');
$imagepath = $imagemanager->get('image_path', '');
return $imagepath;
}
// function to change file path to real path.
static function getRealPath($path, $k2_mode = false, $vm_mode = false, $hikashop_mode = false, $solidres_mode = false) {
$start = ($k2_mode || $vm_mode || $hikashop_mode || $solidres_mode) ? (($k2_mode || $hikashop_mode || $solidres_mode) ? strpos($path, 'media/') : strpos($path, 'components/')) : strpos($path, self::getMediaPath());
$path = './'.substr($path, $start);
return realpath($path);
}
/*
function to check cache
this function checks if file exists in cache directory
and checks if time of file life isn't too long
*/
static function checkCache($filename, $cache_time) {
if($cache_time === FALSE) {
$cache_time = 100 * 365 * 24 * 60 * 60;
}
$cache_dir = JPATH_ROOT.DS.'modules'.DS.'mod_news_pro_gk5'.DS.'cache'.DS;
$file = $cache_dir.$filename;
return (!is_file($file) || $cache_time == 0) ? FALSE : (filemtime($file) + 60 * $cache_time > time());
}
/*
function to check if _cropped / _noscale images exists
return:
0 - when any images exist
1 - when _cropped image exists
2 - when _noscale image exists
*/
static function checkSpecialImages($path) {
$cache_dir = JPATH_ROOT.DS.'modules'.DS.'mod_news_pro_gk5'.DS.'cache'.DS;
// generate the names
$ext = substr($path, -4);
$path = substr($path, 0, -4);
$path = str_replace(DS,'.',$path);
$cropped_path = $path . '_cropped' . $ext;
$noscale_path = $path . '_noscale' . $ext;
// check if the specified files exists
if(is_file($cache_dir . $cropped_path)) {
return 1;
} else if(is_file($cache_dir . $noscale_path)) {
return 2;
} else {
return 0;
}
}
// Creating thumbnails
static function createThumbnail(
$path,
$config,
$k2_mode = false,
$vm_mode = false,
$img_rel = '',
$links = false,
$hikashop_mode = false,
$solidres_mode = false
) {
if($config['use_curl_download'] == 0 && (stripos($path, 'http://') || stripos($path, 'https://'))) {
return false;
}
// importing classes
jimport('joomla.filesystem.file');
jimport('joomla.filesystem.folder');
jimport('joomla.filesystem.path');
//script configuration - increase memory limit to selected value
ini_set('memory_limit', $config['memory_limit']);
// cache dir
$cache_dir = JPATH_ROOT.DS.'modules'.DS.'mod_news_pro_gk5'.DS.'cache'.DS;
// downloaded and filename variables
$downloaded = false;
$imgname = '';
// check if the file is external
if(strpos($path,'http://') !== FALSE || strpos($path,'https://') !== FALSE) {
// check if the file was downloaded
$imgname = '';
$slashpos = strrpos($path, '/');
$imgname = substr($path, $slashpos + 1);
// check if the file exists
if(!file_exists(JPATH_ROOT . DS . 'modules' . DS . 'mod_news_pro_gk5' . DS . 'cache' . DS . 'downloaded' . DS . $imgname)) {
// if not - download the file
if(function_exists('curl_init')) {
// initializing connection
$curl = curl_init();
// saves us before putting directly results of request
curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
// check the source of request
curl_setopt($curl, CURLOPT_URL, $path);
// timeout in seconds
curl_setopt($curl, CURLOPT_TIMEOUT, 20);
// useragent
curl_setopt($curl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
// reading content
$img_content = curl_exec($curl);
// closing connection
curl_close($curl);
// check the results (curl_exec return FALSE on failure) and its length
if($img_content !== FALSE && strlen($img_content) > 0) {
// save the downloaded image
$fp = fopen(JPATH_ROOT . DS . 'modules' . DS . 'mod_news_pro_gk5' . DS . 'cache' . DS . 'downloaded' . DS . $imgname, 'x');
fwrite($fp, $img_content);
fclose($fp);
// change the path to the downloaded file
$path = 'modules' . DS . 'mod_news_pro_gk5' . DS . 'cache' . DS . 'downloaded' . DS . $imgname;
$downloaded = true;
} else {
return false;
}
} else {
return false;
}
} else {
$path = 'modules' . DS . 'mod_news_pro_gk5' . DS . 'cache' . DS . 'downloaded' . DS . $imgname;
$downloaded = true;
}
}
// checking the special images
$check_result = NSP_GK5_Thumbs::checkSpecialImages(NSP_GK5_Thumbs::translateName($path,$config['module_id'], $k2_mode, $vm_mode, '', $downloaded, $imgname, $links, $hikashop_mode, $solidres_mode));
// preparing an array with the image class values
$img_rels = array();
// check if any classes exists in the image
if($img_rel !== '') {
$img_rels = explode(' ', $img_rel);
}
// no scale images
if($check_result == 2) { // NOSCALE
if(NSP_GK5_Thumbs::checkCache(NSP_GK5_Thumbs::translateName($path,$config['module_id'], $k2_mode, $vm_mode, '_noscale', $downloaded, $imgname, $links), false, $config['module_id'], $hikashop_mode, $solidres_mode)){
return array(TRUE, NSP_GK5_Thumbs::translateName($path,$config['module_id'], $k2_mode, $vm_mode, '_noscale', $downloaded, $imgname, $links, $hikashop_mode, $solidres_mode));
} else {
// file path
$file = NSP_GK5_Thumbs::getRealPath($path, $k2_mode, $vm_mode, '_noscale', $hikashop_mode, $solidres_mode);
// filename
$filename = NSP_GK5_Thumbs::translateName($path,$config['module_id'], $k2_mode, $vm_mode, '_noscale', $downloaded, $imgname, $links, $hikashop_mode, $solidres_mode);
// Getting informations about image
if(is_file($file)){
$imageData = getimagesize($file);
$img_w = str_replace('px','',str_replace('%','', $links ? $config['links_img_width'] : $config['img_width']));
$img_h = str_replace('px','',str_replace('%','', $links ? $config['links_img_height'] : $config['img_height']));
// loading image depends from type of image
if($imageData['mime'] == 'image/jpeg' || $imageData['mime'] == 'image/pjpeg' || $imageData['mime'] == 'image/jpg') $imageSource = @imagecreatefromjpeg($file);
elseif($imageData['mime'] == 'image/gif') $imageSource = @imagecreatefromgif($file);
else $imageSource = @imagecreatefrompng($file);
// here can be exist an error when image is to big - then class return blank page
// setting image size in variables
$imageSourceWidth = imagesx($imageSource);
$imageSourceHeight = imagesy($imageSource);
$imageBG = imagecreatetruecolor($img_w, $img_h);
// If image is JPG or GIF
if($imageData['mime'] == 'image/png') {
$imageBG = imagecreatetruecolor($img_w, $img_h);
// enable transparent background
if($config['img_bg'] == 'transparent'){
// create transparent color
$rgb = imagecolorallocatealpha($imageBG, 0, 0, 0, 127);
} else {// create normal color
$bg = $config['img_bg'];
// translate hex to RGB
$hex_color = strtolower(trim($bg,'#;&Hh'));
$bg = array_map('hexdec',explode('.',wordwrap($hex_color, ceil(strlen($hex_color)/3),'.',1)));
// creating color
$rgb = imagecolorallocate($imageBG, $bg[0], $bg[1], $bg[2]);
}
// filling the canvas
imagefill($imageBG, 0, 0, $rgb);
// enabling transparent settings for better quality
imagealphablending($imageBG, false);
imagesavealpha($imageBG, true);
}
//
$imageSourceNWidth = $img_w;
$imageSourceNHeight = $img_h;
$base_x = 0;
$base_y = 0;
// copy image
imagecopyresampled($imageBG, $imageSource, $base_x, $base_y, 0, 0, $imageSourceNWidth, $imageSourceNHeight, $imageSourceWidth, $imageSourceHeight);
// save image depends from MIME type
if($imageData['mime'] == 'image/jpeg' || $imageData['mime'] == 'image/pjpeg' || $imageData['mime'] == 'image/jpg') imagejpeg($imageBG,$cache_dir.$filename, $config['img_quality']);
elseif($imageData['mime'] == 'image/gif') imagegif($imageBG, $cache_dir.$filename);
else imagepng($imageBG, $cache_dir.$filename);
// result
return array(TRUE, $filename);
} else {
return FALSE;
}
}
} else { // cropped or normal image
if(
NSP_GK5_Thumbs::checkCache(
NSP_GK5_Thumbs::translateName(
$path,
$config['module_id'],
$k2_mode,
$vm_mode,
($check_result == 1) ? '_cropped' : '',
$downloaded,
$imgname,
$links,
$hikashop_mode,
$solidres_mode
),
isset($config['thumbs_cache_time']) ? $config['thumbs_cache_time'] : '60',
$config['module_id']
)){
return array(TRUE, NSP_GK5_Thumbs::translateName($path, $config['module_id'], $k2_mode, $vm_mode, ($check_result == 1) ? '_cropped' : '', $downloaded, $imgname, $links, $hikashop_mode, $solidres_mode));
} else {
// file path
$file = NSP_GK5_Thumbs::getRealPath($path, $k2_mode, $vm_mode, ($check_result == 1) ? '_cropped' : '', $hikashop_mode, $solidres_mode);
// filename
$filename = NSP_GK5_Thumbs::translateName($path,$config['module_id'], $k2_mode, $vm_mode, ($check_result == 1) ? '_cropped' : '', $downloaded, $imgname, $links, $hikashop_mode, $solidres_mode);
// Getting informations about image
if(is_file($file)){
$imageData = getimagesize($file);
$img_w = str_replace('px','',str_replace('%','', $links ? $config['links_img_width'] : $config['img_width']));
$img_h = str_replace('px','',str_replace('%','',$links ? $config['links_img_height'] : $config['img_height']));
// loading image depends from type of image
if(
$imageData['mime'] == 'image/jpeg' ||
$imageData['mime'] == 'image/pjpeg' ||
$imageData['mime'] == 'image/jpg'
) {
$imageSource = @imagecreatefromjpeg($file);
} elseif ($imageData['mime'] == 'image/gif') {
$imageSource = @imagecreatefromgif($file);
} else {
$imageSource = @imagecreatefrompng($file);
}
// check if the proper image resource was created
if(!$imageSource) return FALSE;
// here can be exist an error when image is to big - then class return blank page
// setting image size in variables
$imageSourceWidth = imagesx($imageSource);
$imageSourceHeight = imagesy($imageSource);
// variables for cropping
$top_crop = floor(($imageSourceHeight * $config['simple_crop_top']) / 100);
$bottom_crop = floor(($imageSourceHeight * $config['simple_crop_bottom']) / 100);
$left_crop = floor(($imageSourceWidth * $config['simple_crop_left']) / 100);
$right_crop = floor(($imageSourceWidth * $config['simple_crop_right']) / 100);
// get the cropping rules
foreach($config['crop_rules'] as $rule) {
if(is_string($rule['type']) && count($img_rels)) {
foreach($img_rels as $rel) {
if($rule['type'] == $rel) {
$top_crop = $rule['top'];
$bottom_crop = $rule['bottom'];
$left_crop = $rule['left'];
$right_crop = $rule['right'];
break;
}
}
} else {
if( $rule['type']['width'] == $imageSourceWidth &&
$rule['type']['height'] == $imageSourceHeight) {
$top_crop = $rule['top'];
$bottom_crop = $rule['bottom'];
$left_crop = $rule['left'];
$right_crop = $rule['right'];
break;
}
}
}
// Creating blank canvas
if($config['img_keep_aspect_ratio']) {
// calculate ratio for first scaling
$ratio = ($imageSourceWidth > $imageSourceHeight) ? $img_w / $imageSourceWidth : $img_h / $imageSourceHeight;
// calculate new image size
$imageSourceNWidth = ($imageSourceWidth - ($left_crop + $right_crop)) * $ratio;
$imageSourceNHeight = ($imageSourceHeight - ($top_crop + $bottom_crop)) * $ratio;
// calculate ratio for second scaling
if($img_w > $img_h){
if($imageSourceNHeight > $img_h){
$ratio2 = $img_h / $imageSourceNHeight;
$imageSourceNHeight *= $ratio2;
$imageSourceNWidth *= $ratio2;
}
} else {
if($imageSourceNWidth > $img_w){
$ratio2 = $img_w / $imageSourceNWidth;
$imageSourceNHeight *= $ratio2;
$imageSourceNWidth *= $ratio2;
}
}
$img_w = $imageSourceNWidth;
$img_h = $imageSourceNHeight;
}
$imageBG = imagecreatetruecolor($img_w, $img_h);
// If image is JPG or GIF
if($imageData['mime'] == 'image/jpeg' || $imageData['mime'] == 'image/pjpeg' || $imageData['mime'] == 'image/jpg' || $imageData['mime'] == 'image/gif') {
// when bg is set to transparent - use black background
if($config['img_bg'] == 'transparent'){
$bgColorR = 0;
$bgColorG = 0;
$bgColorB = 0;
} else { // in other situation - translate hex to RGB
$bg = $config['img_bg'];
if(strlen($bg) == 4) $bg = $bg[0].$bg[1].$bg[1].$bg[2].$bg[2].$bg[3].$bg[3];
$hex_color = strtolower(trim($bg,'#;&Hh'));
$bg = array_map('hexdec',explode('.',wordwrap($hex_color, ceil(strlen($hex_color)/3),'.',1)));
$bgColorR = $bg[0];
$bgColorG = $bg[1];
$bgColorB = $bg[2];
}
// Creating color
$rgb = imagecolorallocate($imageBG, $bgColorR, $bgColorG, $bgColorB);
// filling canvas with new color
imagefill($imageBG, 0, 0, $rgb);
} else {// for PNG images
if($config['img_keep_aspect_ratio']) {
// calculate ratio for first scaling
$ratio = ($imageSourceWidth > $imageSourceHeight) ? $img_w / $imageSourceWidth : $img_h / $imageSourceHeight;
// calculate new image size
$imageSourceNWidth = ($imageSourceWidth - ($left_crop + $right_crop)) * $ratio;
$imageSourceNHeight = ($imageSourceHeight - ($top_crop + $bottom_crop)) * $ratio;
// calculate ratio for second scaling
if($img_w > $img_h){
if($imageSourceNHeight > $img_h){
$ratio2 = $img_h / $imageSourceNHeight;
$imageSourceNHeight *= $ratio2;
$imageSourceNWidth *= $ratio2;
}
} else {
if($imageSourceNWidth > $img_w){
$ratio2 = $img_w / $imageSourceNWidth;
$imageSourceNHeight *= $ratio2;
$imageSourceNWidth *= $ratio2;
}
}
$img_w = $imageSourceNWidth;
$img_h = $imageSourceNHeight;
}
$imageBG = imagecreatetruecolor($img_w, $img_h);
// enable transparent background
if($config['img_bg'] == 'transparent'){
// create transparent color
$rgb = imagecolorallocatealpha($imageBG, 0, 0, 0, 127);
} else {// create normal color
$bg = $config['img_bg'];
// translate hex to RGB
$hex_color = strtolower(trim($bg,'#;&Hh'));
$bg = array_map('hexdec',explode('.',wordwrap($hex_color, ceil(strlen($hex_color)/3),'.',1)));
// creating color
$rgb = imagecolorallocate($imageBG, $bg[0], $bg[1], $bg[2]);
}
// filling the canvas
imagefill($imageBG, 0, 0, $rgb);
// enabling transparent settings for better quality
imagealphablending($imageBG, false);
imagesavealpha($imageBG, true);
}
// when stretching is disabled
if(!$config['img_stretch']){
if($config['img_keep_aspect_ratio']) {
$base_x = 0;
$base_y = 0;
$imageSourceNWidth = $img_w;
$imageSourceNHeight = $img_h;
} else {
// if image auto-scale is enabled
if($config['img_auto_scale'] && !$config['img_keep_aspect_ratio']) {
$img_ratio = $imageSourceWidth / $imageSourceHeight;
$thumb_ratio = $img_w / $img_h;
// base variables
$imageSourceNWidth = $img_w;
$imageSourceNHeight = $img_h;
$base_x = 0;
$base_y = 0;
// if img_ratio == thumb_ratio - no scale and cuts
$left_crop = 0;
$top_crop = 0;
// two other cases
if($img_ratio > $thumb_ratio) { // when source is wider than destination
$ratio_h = $imageSourceHeight / $img_h;
$new_w = $img_w * $ratio_h;
$left_crop = floor(($imageSourceWidth - $new_w) / 2);
// top_crop still 0
} else if($img_ratio < $thumb_ratio) { // when source is higher than destination
$ratio_w = $imageSourceWidth / $img_w;
$new_h = $img_h * $ratio_w;
$top_crop = floor(($imageSourceHeight - $new_h) / 2);
// left_crop still
}
// equal two other crop params
$right_crop = $left_crop;
$bottom_crop = $top_crop;
} else { // if not - left unused areas of the image
// calculate ratio for first scaling
$ratio = (($imageSourceWidth - ($left_crop + $right_crop)) > ($imageSourceHeight - ($top_crop + $bottom_crop))) ? $img_w/($imageSourceWidth - ($left_crop + $right_crop)) : $img_h/($imageSourceHeight - ($top_crop + $bottom_crop));
// calculate new image size
$imageSourceNWidth = ($imageSourceWidth - ($left_crop + $right_crop)) * $ratio;
$imageSourceNHeight = ($imageSourceHeight - ($top_crop + $bottom_crop)) * $ratio;
// calculate ratio for second scaling
if($img_w > $img_h){
if($imageSourceNHeight > $img_h){
$ratio2 = $img_h / $imageSourceNHeight;
$imageSourceNHeight *= $ratio2;
$imageSourceNWidth *= $ratio2;
}
}else{
if($imageSourceNWidth > $img_w){
$ratio2 = $img_w / $imageSourceNWidth;
$imageSourceNHeight *= $ratio2;
$imageSourceNWidth *= $ratio2;
}
}
// setting position of putting thumbnail on canvas
$base_x = floor(($img_w - $imageSourceNWidth) / 2);
$base_y = floor(($img_h - $imageSourceNHeight) / 2);
}
}
} else { // when stretching is enable
$imageSourceNWidth = $img_w;
$imageSourceNHeight = $img_h;
$base_x = 0;
$base_y = 0;
}
// copy image
imagecopyresampled(
$imageBG,
$imageSource,
$base_x,
$base_y,
$left_crop,
$top_crop,
$imageSourceNWidth,
$imageSourceNHeight,
$imageSourceWidth - ($left_crop + $right_crop),
$imageSourceHeight - ($top_crop + $bottom_crop)
);
//
// applying filters
//
// grayscale
if($config['grayscale_filter'] || $config['sepia_filter']) {
imagefilter($imageBG, IMG_FILTER_GRAYSCALE);
}
// sepia
if($config['sepia_filter']) {
imagefilter($imageBG, IMG_FILTER_COLORIZE, 90, 60, 40);
}
// blur
if($config['blur_filter']) {
imagefilter($imageBG, IMG_FILTER_GAUSSIAN_BLUR, $config['filter_arg']);
}
// brightness
if($config['brightness_filter']) {
imagefilter($imageBG, IMG_FILTER_BRIGHTNESS, $config['filter_arg']);
}
// smooth
if($config['smooth_filter']) {
imagefilter($imageBG, IMG_FILTER_SMOOTH, $config['filter_arg']);
}
// pixelate
if($config['pixelate_filter']) {
imagefilter($imageBG, IMG_FILTER_PIXELATE, $config['filter_arg'], true);
}
// contrast
if($config['contrast_filter']) {
imagefilter($imageBG, IMG_FILTER_CONTRAST, $config['filter_arg']);
}
// save image depends from MIME type
if($imageData['mime'] == 'image/jpeg' || $imageData['mime'] == 'image/pjpeg' || $imageData['mime'] == 'image/jpg') imagejpeg($imageBG,$cache_dir.$filename, $config['img_quality']);
elseif($imageData['mime'] == 'image/gif') imagegif($imageBG, $cache_dir.$filename);
else imagepng($imageBG, $cache_dir.$filename);
// result
return array(TRUE, $filename);
} else {
return FALSE;
}
}
}
}
}
// EOF