Your IP : 216.73.216.95
<?php
class Brizy_Editor_Asset_Crop_Cropper {
const BASIC_CROP_TYPE = 1;
const ADVANCED_CROP_TYPE = 2;
/**
* @var string[]
*/
private $services;
/**
* Brizy_Editor_Asset_Crop_Cropper constructor.
*/
public function __construct() {
$this->services = array(
//'Brizy_Editor_Asset_Crop_ExternalService',
'Brizy_Editor_Asset_Crop_WordpressService'
);
}
/**
* @param $source
* @param $target
* @param $callback
*
* @return bool
*/
private function serviceLoop( $source, $target, $callback ) {
foreach ( $this->services as $serviceClass ) {
try {
/**
* @var Brizy_Editor_Asset_Crop_ServiceInterface $service ;
*/
$service = new $serviceClass( $source, $target );
if ( $callback( $service ) ) {
return true;
}
} catch ( Exception $e ) {
continue;
}
}
return false;
}
/**
* @param $source
* @param $target
* @param $offsetX
* @param $offsetY
* @param $width
* @param $height
*
* @return bool
*/
private function serviceCrop( $source, $target, $offsetX, $offsetY, $width, $height ) {
return $this->serviceLoop( $source, $target, function ( Brizy_Editor_Asset_Crop_ServiceInterface $service ) use ( $offsetX, $offsetY, $width, $height ) {
$result = $service->crop( $offsetX, $offsetY, $width, $height );
if ( $result ) {
$result = $service->saveTargetImage();
}
return $result;
} );
}
/**
* @param $source
* @param $target
* @param $width
* @param $height
*
* @return bool
*/
private function serviceResize( $source, $target, $width, $height ) {
return $this->serviceLoop( $source, $target, function ( Brizy_Editor_Asset_Crop_ServiceInterface $service ) use ( $width, $height ) {
$result = $service->resize( $width, $height );
if ( $result ) {
$result = $service->saveTargetImage();
}
return $result;
} );
}
/**
* @param $source
* @param $target
* @param $filterOptions
*
* @return bool
*/
private function internalCrop( $source, $target, $filterOptions ) {
if ( $filterOptions['format'] == "gif" ) {
// do not resize
return $this->copyFile( $source, $target );
} else {
list( $imgWidth, $imgHeight ) = $filterOptions['originalSize'];
if ( $filterOptions['is_advanced'] === false ) {
list( $requestedImgWidth, $requestedImgHeight ) = array_values( $filterOptions['requestedData'] );
if ( $requestedImgWidth > $imgWidth && ( $requestedImgHeight == "any" || $requestedImgHeight == "*" ) ) {
return $this->copyFile( $source, $target );
}
return $this->serviceResize( $source, $target, $requestedImgWidth, $requestedImgHeight );
}
list( $requestedImgWidth, $requestedImgHeight, $requestedOffsetX, $requestedOffsetY, $containerWidth, $containerHeight ) = array_values( $filterOptions['requestedData'] );
if ( ( $containerWidth > $imgWidth || $containerHeight > $imgHeight ) || $requestedImgWidth > $imgWidth && $requestedImgHeight > $imgHeight ) {
$newOffsetX = $imgWidth * $requestedOffsetX / $requestedImgWidth;
$newOffsetY = $imgHeight * $requestedOffsetY / $requestedImgHeight;
$newImgWidth = $imgWidth * $containerWidth / $requestedImgWidth;
$newImgHeight = $imgHeight * $containerHeight / $requestedImgHeight;
return $this->serviceCrop( $source, $target, $newOffsetX, $newOffsetY, $newImgWidth, $newImgHeight );
} else {
return $this->serviceLoop( $source, $target, function ( Brizy_Editor_Asset_Crop_ServiceInterface $service ) use ( $source, $target, $requestedImgWidth, $requestedImgHeight, $requestedOffsetX, $requestedOffsetY, $containerWidth, $containerHeight ) {
$result = $service->resize( $requestedImgWidth, $requestedImgHeight );
if ( $result && $service->crop( $requestedOffsetX, $requestedOffsetY, $containerWidth, $containerHeight ) ) {
$result = $service->saveTargetImage();
if ( ! $result ) {
@unlink( $target );
}
return $result;
}
return false;
} );
}
}
}
/**
* @param $source
* @param $target
* @param $filter
*
* @return bool
* @throws Exception
*/
public function crop( $source, $target, $filter ) {
if ( ! file_exists( $source ) ) {
throw new Exception( 'Unable to crop media. Source file not found.' );
}
if ( ! is_writable( dirname( $target ) ) ) {
throw new Exception( 'Unable to crop media. Target directory is not writable.' );
}
try {
wp_raise_memory_limit( 'image' );
$filterOptions = $this->getFilterOptions( $source, $filter );
$result = $this->internalCrop( $source, $target, $filterOptions );
return $result;
} catch ( Exception $e ) {
Brizy_Logger::instance()->error( $e->getMessage(), [ $e ] );
return false;
}
}
/**
* @param $source
* @param $filter
*
* @return array
* @throws Exception
*/
private function getFilterOptions( $source, $filter ) {
$imageEditor = wp_get_image_editor( $source );
if($imageEditor instanceof WP_Error) {
throw new Exception('No image editor returned');
}
parse_str( strtolower( $filter ), $output );
$configuration = array();
$configuration['format'] = pathinfo( basename( $source ), PATHINFO_EXTENSION );
$configuration['originalSize'] = array_values( $imageEditor->get_size() );
$cropType = $this->getCropType( $filter );
switch ( $cropType ) {
case self::BASIC_CROP_TYPE:
$configuration['requestedData']['imageWidth'] = (int) $output['iw'];
$configuration['requestedData']['imageHeight'] = (int) $output['ih'];
$configuration['is_advanced'] = false;
break;
case self::ADVANCED_CROP_TYPE:
$configuration['requestedData']['imageWidth'] = (int) $output['iw'];
$configuration['requestedData']['imageHeight'] = (int) $output['ih'];
$configuration['requestedData']['offsetX'] = (int) $output['ox'];
$configuration['requestedData']['offsetY'] = (int) $output['oy'];
$configuration['requestedData']['cropWidth'] = (int) $output['cw'];
$configuration['requestedData']['cropHeight'] = (int) $output['ch'];
$configuration['is_advanced'] = true;
break;
}
return $configuration;
}
/**
* @param $filter
*
* @return int|null
* @throws Exception
*/
private function getCropType( $filter ) {
$regExAdvanced = "/^iW=[0-9]{1,4}&iH=[0-9]{1,4}&oX=[0-9]{1,4}&oY=[0-9]{1,4}&cW=[0-9]{1,4}&cH=[0-9]{1,4}$/is";
$regExBasic = "/^iW=[0-9]{1,4}&iH=([0-9]{1,4}|any|\*{1})$/is";
$cropType = null;
if ( preg_match( $regExBasic, $filter ) ) {
$cropType = self::BASIC_CROP_TYPE;
} elseif ( preg_match( $regExAdvanced, $filter ) ) {
$cropType = self::ADVANCED_CROP_TYPE;
} else {
throw new Exception( "Invalid size format." );
}
return $cropType;
}
/**
* @param $source
* @param $target
*
* @return bool
*/
private function copyFile( $source, $target ) {
return (bool) copy( $source, $target );
}
}