<?php

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// Exit if accessed directly

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if ( ! defined( 'ABSPATH' ) ) {

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exit;

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}

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/**

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* Aqua Resizer plugin

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* Version 1.2.2

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*

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* Dual licensed under the MIT and GPL licenses:

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* http://www.opensource.org/licenses/mit-license.php

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* http://sam.zoy.org/wtfpl/

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*

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* Thanks to Aqua Resizer Team for some excellent contributions!

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*

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*

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* Title : Aqua Resizer

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* Description : Resizes WordPress images on the fly

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* Version : 1.2.2

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* Author : Syamil MJ

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* Author URI : http://aquagraphite.com

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* License : WTFPL - http://sam.zoy.org/wtfpl/

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* Documentation : https://github.com/sy4mil/Aqua-Resizer/

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*

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* @param string $url - (required) must be uploaded using wp media uploader

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* @param int $width - (required)

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* @param int $height - (optional)

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* @param bool $crop - (optional) default to soft crop

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* @param bool $single - (optional) returns an array if false

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* @param bool $upscale - (optional) resizes smaller images

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* @uses wp_upload_dir()

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* @uses image_resize_dimensions()

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* @uses wp_get_image_editor()

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*

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* @return str|array

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*/

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if(!class_exists('Aq_Resize')) {

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class Aq_Exception extends Exception {}

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class Aq_Resize

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{

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/**

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* The singleton instance

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*/

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static private $instance = null;

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/**

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* Should an Aq_Exception be thrown on error?

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* If false (default), then the error will just be logged.

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*/

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public $throwOnError = false;

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/**

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* No initialization allowed

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*/

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private function __construct() {}

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/**

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* No cloning allowed

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*/

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private function __clone() {}

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/**

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* For your custom default usage you may want to initialize an Aq_Resize object by yourself and then have own defaults

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*/

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static public function getInstance() {

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if(self::$instance == null) {

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self::$instance = new self;

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}

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return self::$instance;

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}

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/**

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* Run, forest.

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*/

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public function process( $url, $width = null, $height = null, $crop = null, $single = true, $upscale = false ) {

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try {

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// Validate inputs.

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if (!$url)

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throw new Aq_Exception('$url parameter is required');

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if (!$width)

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throw new Aq_Exception('$width parameter is required');

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// Caipt'n, ready to hook.

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if ( true === $upscale ) add_filter( 'image_resize_dimensions', array($this, 'aq_upscale'), 10, 6 );

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// Define upload path & dir.

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$upload_info = wp_upload_dir();

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$upload_dir = $upload_info['basedir'];

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$upload_url = $upload_info['baseurl'];

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$http_prefix = "http://";

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$https_prefix = "https://";

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$relative_prefix = "//"; // The protocol-relative URL

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/* if the $url scheme differs from $upload_url scheme, make them match

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if the schemes differe, images don't show up. */

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if(!strncmp($url,$https_prefix,strlen($https_prefix))){ //if url begins with https:// make $upload_url begin with https:// as well

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$upload_url = str_replace($http_prefix,$https_prefix,$upload_url);

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}

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elseif(!strncmp($url,$http_prefix,strlen($http_prefix))){ //if url begins with http:// make $upload_url begin with http:// as well

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$upload_url = str_replace($https_prefix,$http_prefix,$upload_url);

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}

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elseif(!strncmp($url,$relative_prefix,strlen($relative_prefix))){ //if url begins with // make $upload_url begin with // as well

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$upload_url = str_replace(array( 0 => "$http_prefix", 1 => "$https_prefix"),$relative_prefix,$upload_url);

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}

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$is_cdn = false;

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$cdn_url = '';

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$cdn_url_main = '';

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// Check if $img_url is not local.

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if ( false === strpos( $url, $upload_url ) ) {

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$is_cdn = true;

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$cdn_url_main = $cdn_url = $url;

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// Return the original array

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$wp_upload_dir = wp_upload_dir();

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$dir_baseurl = $wp_upload_dir['baseurl'];

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$dir_baseurl = explode('/', $dir_baseurl);

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$dir_name = end($dir_baseurl);

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$cdn_url = explode($dir_name, $cdn_url);

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if ( ! isset($cdn_url[1]) ) {

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$cdn_url = array();

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$cdn_url[1] = '';

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}

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$hybid_url = $upload_url . $cdn_url[1];

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// this will append crop path in the url to generate the image locally

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$url = $hybid_url;

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}

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// Define path of image.

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$rel_path = str_replace( $upload_url, '', $url );

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$img_path = '';

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if($rel_path){

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$img_path = $upload_dir . $rel_path;

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}

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// Check if img path exists, and is an image indeed.

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if ( ! file_exists( $img_path ) or ! getimagesize( $img_path ) ){

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// Return the Original CDN array

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return array (

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0 => $cdn_url_main,

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1 => $width,

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2 => $height

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);

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}

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// Get image info.

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$info = pathinfo( $img_path );

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$ext = $info['extension'];

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list( $orig_w, $orig_h ) = getimagesize( $img_path );

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// Get image size after cropping.

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$dims = image_resize_dimensions( $orig_w, $orig_h, $width, $height, $crop );

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if(!empty($dims[4])){

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$dst_w = $dims[4];

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}else{

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$dst_w = '';

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}

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if(!empty($dims[5])){

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$dst_h = $dims[5];

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}else{

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$dst_h = '';

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}

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// Return the original image only if it exactly fits the needed measures.

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if ( ! $dims || ( ( ( null === $height && $orig_w == $width ) xor ( null === $width && $orig_h == $height ) ) xor ( $height == $orig_h && $width == $orig_w ) ) ) {

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$img_url = $url;

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$dst_w = $orig_w;

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$dst_h = $orig_h;

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} else {

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// Use this to check if cropped image already exists, so we can return that instead.

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$suffix = "{$dst_w}x{$dst_h}";

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$dst_rel_path = str_replace( '.' . $ext, '', $rel_path );

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$destfilename = "{$upload_dir}{$dst_rel_path}-{$suffix}.{$ext}";

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if ( ! $dims || ( true == $crop && false == $upscale && ( $dst_w < $width || $dst_h < $height ) ) ) {

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// Can't resize, so return false saying that the action to do could not be processed as planned.

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throw new Aq_Exception('Unable to resize image because image_resize_dimensions() failed');

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}

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// Else check if cache exists.

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elseif ( file_exists( $destfilename ) && getimagesize( $destfilename ) ) {

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$img_url = "{$upload_url}{$dst_rel_path}-{$suffix}.{$ext}";

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}

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// Else, we resize the image and return the new resized image url.

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else {

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$editor = wp_get_image_editor( $img_path );

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if ( is_wp_error( $editor ) || is_wp_error( $editor->resize( $width, $height, $crop ) ) ) {

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// Return the Original array

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return array (

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0 => $url,

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1 => $width,

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2 => $height

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);

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}

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$resized_file = $editor->save();

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if ( ! is_wp_error( $resized_file ) ) {

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$resized_rel_path = str_replace( $upload_dir, '', $resized_file['path'] );

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$img_url = $upload_url . $resized_rel_path;

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} else {

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throw new Aq_Exception('Unable to save resized image file: ' . $resized_file->get_error_message());

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}

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}

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}

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// Check if it is CDN then reglue the url to its original state

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if ( $is_cdn ) {

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$img_url = explode('/', $img_url);

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$cdn_url = explode('/', $cdn_url_main);

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$img_end = end($img_url);

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$cdn_end = end($cdn_url);

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$cdn_url_main = str_replace($cdn_end, $img_end, $cdn_url_main);

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$img_url = $cdn_url_main;

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}

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// Okay, leave the ship.

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if ( true === $upscale ) remove_filter( 'image_resize_dimensions', array( $this, 'aq_upscale' ) );

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// Return the output.

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if ( $single ) {

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// str return.

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$image = $img_url;

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} else {

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// array return.

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$image = array (

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0 => $img_url,

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1 => $dst_w,

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2 => $dst_h

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);

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}

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return $image;

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}

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catch (Aq_Exception $ex) {

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// Throwing errors for the images stored on CDN #2285

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/*error_log('Aq_Resize.process() error: ' . $ex->getMessage());*/

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if ($this->throwOnError) {

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// Bubble up exception.

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throw $ex;

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}

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else {

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// Return false, so that this patch is backwards-compatible.

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return false;

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}

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}

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}

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/**

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* Callback to overwrite WP computing of thumbnail measures

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*/

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function aq_upscale( $default, $orig_w, $orig_h, $dest_w, $dest_h, $crop ) {

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if ( ! $crop ) return null; // Let the wordpress default function handle this.

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// Here is the point we allow to use larger image size than the original one.

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$aspect_ratio = $orig_w / $orig_h;

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$new_w = $dest_w;

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$new_h = $dest_h;

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if ( ! $new_w ) {

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$new_w = intval( $new_h * $aspect_ratio );

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}

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if ( ! $new_h ) {

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$new_h = intval( $new_w / $aspect_ratio );

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}

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$size_ratio = max( $new_w / $orig_w, $new_h / $orig_h );

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$crop_w = round( $new_w / $size_ratio );

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$crop_h = round( $new_h / $size_ratio );

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$s_x = floor( ( $orig_w - $crop_w ) / 2 );

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$s_y = floor( ( $orig_h - $crop_h ) / 2 );

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return array( 0, 0, (int) $s_x, (int) $s_y, (int) $new_w, (int) $new_h, (int) $crop_w, (int) $crop_h );

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}

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}

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}

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if(!function_exists('ampforwp_aq_resize')) {

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/**

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* This is just a tiny wrapper function for the class above so that there is no

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* need to change any code in your own WP themes. Usage is still the same :)

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*/

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function ampforwp_aq_resize( $url, $width = null, $height = null, $crop = null, $single = true, $upscale = false ) {

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if (empty($url)) {

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return;

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}

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// Disable ampforwp_aq_resize and return images without compressing.

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// Useful for some who wants to disable when using CDN images

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$disable_aq_resize = false;

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if (function_exists('imagify_set_activation') || function_exists('ud_check_stateless_media') || function_exists('webp_express_process_post') || class_exists( 'WP_Offload_Media_Autoloader')) {

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$disable_aq_resize = true;

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}

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$disable_aq_resize = apply_filters('ampforwp_disable_aq_resize', $disable_aq_resize, $url);

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if (true === $disable_aq_resize ){

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return $image = array(

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0 => $url,

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1 => $width,

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2 => $height,

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);

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}

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/* WPML Fix */

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if ( defined( 'ICL_SITEPRESS_VERSION' ) ){

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global $sitepress;

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$url = $sitepress->convert_url( $url, $sitepress->get_default_language() );

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}

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/* WPML Fix */

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/* EWWW Image Optimizer (ExactDN) Compatible*/

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global $exactdn;

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if ( class_exists( 'ExactDN' ) && $exactdn->get_exactdn_domain() ) {

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$args = array(

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'resize' => "$width,$height",

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);

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$image = array(

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0 => $exactdn->generate_url( $url, $args ),

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1 => $width,

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2 => $height,

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);

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return $image;

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}

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/* Jetpack Compatible*/

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elseif( class_exists( 'Jetpack' ) && Jetpack::is_module_active( 'photon' ) ) {

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$args = array(

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'resize' => "$width,$height"

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);

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$image = array (

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0 => jetpack_photon_url( $url, $args ),

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1 => $width,

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2 => $height

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);

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return $image;

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}

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elseif( function_exists('fifu_activate') || is_plugin_active('fifu-premium/fifu-premium.php') ){

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return fifu_amp_url($url, $width, $height);

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} else if (function_exists('wpp_get_option')){

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$image = array(

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0 => $url,

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1 => $width,

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2 => $height,

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);

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return $image;

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}

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else {

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$aq_resize = Aq_Resize::getInstance();

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return $aq_resize->process( $url, $width, $height, $crop, $single, $upscale );

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}

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}

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}

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