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<?php
/**
* @package Phoca Gallery
* @author Jan Pavelka - https://www.phoca.cz
* @copyright Copyright (C) Jan Pavelka https://www.phoca.cz
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 and later
* @cms Joomla
* @copyright Copyright (C) Open Source Matters. All rights reserved.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
*/
defined( '_JEXEC' ) or die( 'Restricted access' );
use Joomla\CMS\Factory;
use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Filesystem\File;
jimport( 'joomla.filesystem.folder' );
jimport( 'joomla.filesystem.file' );
phocagalleryimport('phocagallery.render.renderprocess');
phocagalleryimport('phocagallery.file.file');
phocagalleryimport('phocagallery.image.image');
register_shutdown_function(function(){
$error = error_get_last();
if(null !== $error) {
if (isset($error['type']) && $error['type'] == 1) {
$app = Factory::getApplication();
$app->redirect('index.php?option=com_phocagallery&view=phocagalleryfe&error=1');
return;
}
}
});
class PhocaGalleryImageMagic
{
/**
* need GD library (first PHP line WIN: dl("php_gd.dll"); UNIX: dl("gd.so");
* www.boutell.com/gd/
* interval.cz/clanky/php-skript-pro-generovani-galerie-obrazku-2/
* cz.php.net/imagecopyresampled
* www.linuxsoft.cz/sw_detail.php?id_item=871
* www.webtip.cz/art/wt_tech_php/liquid_ir.html
* php.vrana.cz/zmensovani-obrazku.php
* diskuse.jakpsatweb.cz/
*
* @param string $fileIn Vstupni soubor (mel by existovat)
* @param string $fileOut Vystupni soubor, null ho jenom zobrazi (taky kdyz nema pravo se zapsat :)
* @param int $width Vysledna sirka (maximalni)
* @param int $height Vysledna vyska (maximalni)
* @param bool $crop Orez (true, obrazek bude presne tak velky), jinak jenom Resample (udane maximalni rozmery)
* @param int $typeOut IMAGETYPE_type vystupniho obrazku
* @return bool Chyba kdyz vrati false
*/
public static function imageMagic($fileIn, $fileOut = null, $width = null, $height = null, $crop = null, $typeOut = null, $watermarkParams = array(), $frontUpload = 0, &$errorMsg = '') {
$params = ComponentHelper::getParams('com_phocagallery') ;
$jfile_thumbs = $params->get( 'jfile_thumbs', 1 );
$jpeg_quality = $params->get( 'jpeg_quality', 85 );
$exif_rotate = $params->get( 'exif_rotate', 0 );
$jpeg_quality = PhocaGalleryImage::getJpegQuality($jpeg_quality);
$fileWatermark = '';
// While front upload we don't display the process page
if ($frontUpload == 0) {
$stopText = PhocaGalleryRenderProcess::displayStopThumbnailsCreating('processpage');
echo $stopText;
}
// Memory - - - - - - - -
/*$memory = 8;
$memoryLimitChanged = 0;
$memory = (int)ini_get( 'memory_limit' );
if ($memory == 0) {
$memory = 8;
}*/
// - - - - - - - - - - -
if ($fileIn !== '' && File::exists($fileIn)) {
// array of width, height, IMAGETYPE, "height=x width=x" (string)
list($w, $h, $type) = GetImageSize($fileIn);
// Read EXIF data from image file to get the Orientation flag
$exif = null;
if ($exif_rotate == 1) {
if (function_exists('exif_read_data') && $type == IMAGETYPE_JPEG ) {
$exif = @exif_read_data($fileIn);
}
// GetImageSize returns an array of width, height, IMAGETYPE, "height=x width=x" (string)
// The EXIF Orientation flag is examined to determine if width and height need to be swapped, i.e. if the image will be rotated in a subsequent step
if(isset($exif['Orientation']) && !empty($exif['Orientation'])) {
switch($exif['Orientation']) {
case 8: // will need to be rotated 90 degrees left, so swap order of width and height
list($h, $w, $type) = GetImageSize($fileIn);
break;
case 3: // will need to be rotated 180 degrees so don't swap order of width and height
list($w, $h, $type) = GetImageSize($fileIn);
break;
case 6: // will need to be rotated 90 degrees right, so swap order of width and height
list($h, $w, $type) = GetImageSize($fileIn);
break;
}
}
}
if ($w > 0 && $h > 0) {// we got the info from GetImageSize
// size of the image
if ($width == null || $width == 0) { // no width added
$width = $w;
}
else if ($height == null || $height == 0) { // no height, adding the same as width
$height = $width;
}
if ($height == null || $height == 0) { // no height, no width
$height = $h;
}
// miniaturizing
if (!$crop) { // new size - nw, nh (new width/height)
$scale = (($width / $w) < ($height / $h)) ? ($width / $w) : ($height / $h); // smaller rate
//$scale = $height / $h;
$src = array(0,0, $w, $h);
$dst = array(0,0, floor($w*$scale), floor($h*$scale));
}
else { // will be cropped
$scale = (($width / $w) > ($height / $h)) ? ($width / $w) : ($height / $h); // greater rate
$newW = $width/$scale; // check the size of in file
$newH = $height/$scale;
// which side is larger (rounding error)
if (($w - $newW) > ($h - $newH)) {
$src = array(floor(($w - $newW)/2), 0, floor($newW), $h);
}
else {
$src = array(0, floor(($h - $newH)/2), $w, floor($newH));
}
$dst = array(0,0, floor($width), floor($height));
}
// Watermark - - - - - - - - - - -
if (!empty($watermarkParams) && ($watermarkParams['create'] == 1 || $watermarkParams['create'] == 2)) {
$thumbnailSmall = false;
$thumbnailMedium = false;
$thumbnailLarge = false;
$thumbnailMedium = preg_match("/phoca_thumb_m_/i", $fileOut);
$thumbnailLarge = preg_match("/phoca_thumb_l_/i", $fileOut);
$path = PhocaGalleryPath::getPath();
$fileName = PhocaGalleryFile::getTitleFromFile($fileIn, 1);
// Which Watermark will be used
// If watermark is in current directory use it else use Default
$fileWatermarkMedium = str_replace($fileName, 'watermark-medium.png', $fileIn);
$fileWatermarkLarge = str_replace($fileName, 'watermark-large.png', $fileIn);
clearstatcache();
// Which Watermark will be used
if ($thumbnailMedium) {
if (File::exists($fileWatermarkMedium)) {
$fileWatermark = $fileWatermarkMedium;
} else {
if ($watermarkParams['create'] == 2) {
$fileWatermark = $path->image_abs.'watermark-medium.png';
} else {
$fileWatermark = '';
}
}
} else if ($thumbnailLarge) {
if (File::exists($fileWatermarkLarge)) {
$fileWatermark = $fileWatermarkLarge;
} else {
if ($watermarkParams['create'] == 2) {
$fileWatermark = $path->image_abs.'watermark-large.png';
} else {
$fileWatermark = '';
}
}
} else {
$fileWatermark = '';
}
if (!File::exists($fileWatermark)) {
$fileWatermark = '';
}
if ($fileWatermark != '') {
list($wW, $hW, $typeW) = GetImageSize($fileWatermark);
switch ($watermarkParams['x']) {
case 'left':
$locationX = 0;
break;
case 'right':
$locationX = $dst[2] - $wW;
break;
case 'center':
Default:
$locationX = ($dst[2] / 2) - ($wW / 2);
break;
}
switch ($watermarkParams['y']) {
case 'top':
$locationY = 0;
break;
case 'bottom':
$locationY = $dst[3] - $hW;
break;
case 'middle':
Default:
$locationY = ($dst[3] / 2) - ($hW / 2);
break;
}
}
} else {
$fileWatermark = '';
}
}
/*if ($memory < 50) {
ini_set('memory_limit', '50M');
$memoryLimitChanged = 1;
}*/
// Resampling
// in file
// Watemark
if ($fileWatermark != '') {
if (!function_exists('ImageCreateFromPNG')) {
$errorMsg = 'ErrorNoPNGFunction';
return false;
}
$waterImage1=ImageCreateFromPNG($fileWatermark);
}
// End Watermark - - - - - - - - - - - - - - - - - -
switch($type) {
case IMAGETYPE_JPEG:
if (!function_exists('ImageCreateFromJPEG')) {
$errorMsg = 'ErrorNoJPGFunction';
return false;
}
//$image1 = ImageCreateFromJPEG($fileIn);
try {
$image1 = ImageCreateFromJPEG($fileIn);
} catch(\Exception $exception) {
$errorMsg = 'ErrorJPGFunction';
return false;
}
break;
case IMAGETYPE_PNG :
if (!function_exists('ImageCreateFromPNG')) {
$errorMsg = 'ErrorNoPNGFunction';
return false;
}
//$image1 = ImageCreateFromPNG($fileIn);
try {
$image1 = ImageCreateFromPNG($fileIn);
} catch(\Exception $exception) {
$errorMsg = 'ErrorPNGFunction';
return false;
}
break;
case IMAGETYPE_GIF :
if (!function_exists('ImageCreateFromGIF')) {
$errorMsg = 'ErrorNoGIFFunction';
return false;
}
//$image1 = ImageCreateFromGIF($fileIn);
try {
$image1 = ImageCreateFromGIF($fileIn);
} catch(\Exception $exception) {
$errorMsg = 'ErrorGIFFunction';
return false;
}
break;
case IMAGETYPE_WEBP:
if (!function_exists('ImageCreateFromWEBP')) {
$errorMsg = 'ErrorNoWEBPFunction';
return false;
}
//$image1 = ImageCreateFromGIF($fileIn);
try {
$image1 = ImageCreateFromWEBP($fileIn);
} catch(\Exception $exception) {
$errorMsg = 'ErrorWEBPFunction';
return false;
}
break;
case IMAGETYPE_WBMP:
if (!function_exists('ImageCreateFromWBMP')) {
$errorMsg = 'ErrorNoWBMPFunction';
return false;
}
//$image1 = ImageCreateFromWBMP($fileIn);
try {
$image1 = ImageCreateFromWBMP($fileIn);
} catch(\Exception $exception) {
$errorMsg = 'ErrorWBMPFunction';
return false;
}
break;
Default:
$errorMsg = 'ErrorNotSupportedImage';
return false;
break;
}
if ($image1) {
$image2 = @ImageCreateTruecolor($dst[2], $dst[3]);
if (!$image2) {
$errorMsg = 'ErrorNoImageCreateTruecolor';
return false;
}
switch($type) {
case IMAGETYPE_PNG:
case IMAGETYPE_WEBP:
//imagealphablending($image1, false);
@imagealphablending($image2, false);
//imagesavealpha($image1, true);
@imagesavealpha($image2, true);
break;
}
if ($exif_rotate == 1) {
// Examine the EXIF Orientation flag (read earlier) to determine if the image needs to be rotated prior to the ImageCopyResampled call
// Use the imagerotate() function to perform the rotation, if required
if(isset($exif['Orientation']) && !empty($exif['Orientation'])) {
switch($exif['Orientation']) {
case 8:
$image1 = imagerotate($image1,90,0);
// @imagealphablending($image1, false);
// @imagesavealpha($image1, true);
break;
case 3:
$image1 = imagerotate($image1,180,0);
// @imagealphablending($image1, false);
// @imagesavealpha($image1, true);
break;
case 6:
$image1 = imagerotate($image1,-90,0);
// @imagealphablending($image1, false);
// @imagesavealpha($image1, true);
break;
}
}
}
ImageCopyResampled($image2, $image1, $dst[0],$dst[1], $src[0],$src[1], $dst[2],$dst[3], $src[2],$src[3]);
// Watermark - - - - - -
if ($fileWatermark != '') {
ImageCopy($image2, $waterImage1, $locationX, $locationY, 0, 0, $wW, $hW);
}
// End Watermark - - - -
// Display the Image - not used
if ($fileOut == null) {
header("Content-type: ". image_type_to_mime_type($typeOut));
}
// Create the file
if ($typeOut == null) { // no bitmap
$typeOut = ($type == IMAGETYPE_WBMP) ? IMAGETYPE_PNG : $type;
}
switch($typeOut) {
case IMAGETYPE_JPEG:
if (!function_exists('ImageJPEG')) {
$errorMsg = 'ErrorNoJPGFunction';
return false;
}
if ($jfile_thumbs == 1) {
ob_start();
if (!@ImageJPEG($image2, NULL, $jpeg_quality)) {
ob_end_clean();
$errorMsg = 'ErrorWriteFile';
return false;
}
$imgJPEGToWrite = ob_get_contents();
ob_end_clean();
if(!File::write( $fileOut, $imgJPEGToWrite)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
} else {
if (!@ImageJPEG($image2, $fileOut, $jpeg_quality)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
}
break;
case IMAGETYPE_PNG :
if (!function_exists('ImagePNG')) {
$errorMsg = 'ErrorNoPNGFunction';
return false;
}
if ($jfile_thumbs == 1) {
ob_start();
if (!@ImagePNG($image2, NULL)) {
ob_end_clean();
$errorMsg = 'ErrorWriteFile';
return false;
}
$imgPNGToWrite = ob_get_contents();
ob_end_clean();
if(!File::write( $fileOut, $imgPNGToWrite)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
} else {
if (!@ImagePNG($image2, $fileOut)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
}
break;
case IMAGETYPE_GIF :
if (!function_exists('ImageGIF')) {
$errorMsg = 'ErrorNoGIFFunction';
return false;
}
if ($jfile_thumbs == 1) {
ob_start();
if (!@ImageGIF($image2, NULL)) {
ob_end_clean();
$errorMsg = 'ErrorWriteFile';
return false;
}
$imgGIFToWrite = ob_get_contents();
ob_end_clean();
if(!File::write( $fileOut, $imgGIFToWrite)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
} else {
if (!@ImageGIF($image2, $fileOut)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
}
break;
case IMAGETYPE_WEBP :
if (!function_exists('ImageWEBP')) {
$errorMsg = 'ErrorNoWEBPFunction';
return false;
}
if ($jfile_thumbs == 1) {
ob_start();
if (!@imagewebp($image2, NULL)) {
ob_end_clean();
$errorMsg = 'ErrorWriteFile';
return false;
}
$imgWEBPToWrite = ob_get_contents();
ob_end_clean();
if(!File::write( $fileOut, $imgWEBPToWrite)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
} else {
if (!@imagewebp($image2, $fileOut)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
}
break;
Default:
$errorMsg = 'ErrorNotSupportedImage';
return false;
break;
}
// free memory
ImageDestroy($image1);
ImageDestroy($image2);
if (isset($waterImage1)) {
ImageDestroy($waterImage1);
}
/*if ($memoryLimitChanged == 1) {
$memoryString = $memory . 'M';
ini_set('memory_limit', $memoryString);
}*/
$errorMsg = ''; // Success
return true;
} else {
$errorMsg = 'Error1';
return false;
}
/*if ($memoryLimitChanged == 1) {
$memoryString = $memory . 'M';
ini_set('memory_limit', $memoryString);
}*/
}
$errorMsg = 'Error2';
return false;
}
}
?>