name : aq-resizer.class.php <?php /** * Title : Aqua Resizer * Description : Resizes WordPress images on the fly * Version : 1.2.x * Author : Syamil MJ * Author URI : http://aquagraphite.com * License : WTFPL - http://sam.zoy.org/wtfpl/ * Documentation : https://github.com/sy4mil/Aqua-Resizer/ * * @param string $url - (required) must be uploaded using wp media uploader * @param int $width - (required) * @param int $height - (optional) * @param bool $crop - (optional) default to soft crop * @param bool $single - (optional) returns an array if false * @uses wp_upload_dir() * @uses image_resize_dimensions() * @uses wp_get_image_editor() * * @return str|array */ if(!defined('ABSPATH')) exit(); if(!class_exists('Rev_Aq_Resize')){ class Rev_Aq_Resize { /** * The singleton instance */ static private $instance = null; /** * No initialization allowed */ private function __construct() {} /** * No cloning allowed */ private function __clone() {} /** * For your custom default usage you may want to initialize an Aq_Resize object by yourself and then have own defaults */ static public function getInstance() { if(self::$instance == null) { self::$instance = new self; } return self::$instance; } /** * Run, forest. */ public function process( $url, $width = null, $height = null, $crop = null, $single = true, $upscale = false ) { // Validate inputs. if ( ! $url || ( ! $width && ! $height ) ) return false; // Caipt'n, ready to hook. if ( true === $upscale ) add_filter( 'image_resize_dimensions', array($this, 'aq_upscale'), 10, 6 ); // Define upload path & dir. $upload_info = wp_upload_dir(); $upload_dir = $upload_info['basedir']; $upload_url = $upload_info['baseurl']; $http_prefix = "http://"; $https_prefix = "https://"; /* if the $url scheme differs from $upload_url scheme, make them match if the schemes differe, images don't show up. */ if(!strncmp($url,$https_prefix,strlen($https_prefix))){ //if url begins with https:// make $upload_url begin with https:// as well $upload_url = str_replace($http_prefix,$https_prefix,$upload_url); } elseif(!strncmp($url,$http_prefix,strlen($http_prefix))){ //if url begins with http:// make $upload_url begin with http:// as well $upload_url = str_replace($https_prefix,$http_prefix,$upload_url); } // Check if $img_url is local. if ( false === strpos( $url, $upload_url ) ) return false; // Define path of image. $rel_path = str_replace( $upload_url, '', $url ); $img_path = $upload_dir . $rel_path; // Check if img path exists, and is an image indeed. if ( ! file_exists( $img_path ) or ! @getimagesize( $img_path ) ) return false; // Get image info. $info = pathinfo( $img_path ); $ext = $info['extension']; list( $orig_w, $orig_h ) = getimagesize( $img_path ); // Get image size after cropping. $dims = image_resize_dimensions( $orig_w, $orig_h, $width, $height, $crop ); $dst_w = $dims[4]; $dst_h = $dims[5]; // Return the original image only if it exactly fits the needed measures. if ( ! $dims && ( ( ( null === $height && $orig_w == $width ) xor ( null === $width && $orig_h == $height ) ) xor ( $height == $orig_h && $width == $orig_w ) ) ) { $img_url = $url; $dst_w = $orig_w; $dst_h = $orig_h; } else { // Use this to check if cropped image already exists, so we can return that instead. $suffix = "{$dst_w}x{$dst_h}"; $dst_rel_path = str_replace( '.' . $ext, '', $rel_path ); $destfilename = "{$upload_dir}{$dst_rel_path}-{$suffix}.{$ext}"; if ( ! $dims || ( true == $crop && false == $upscale && ( $dst_w < $width || $dst_h < $height ) ) ) { // Can't resize, so return false saying that the action to do could not be processed as planned. return false; } // Else check if cache exists. elseif ( file_exists( $destfilename ) && getimagesize( $destfilename ) ) { $img_url = "{$upload_url}{$dst_rel_path}-{$suffix}.{$ext}"; } // Else, we resize the image and return the new resized image url. else { $editor = wp_get_image_editor( $img_path ); if ( is_wp_error( $editor ) || is_wp_error( $editor->resize( $width, $height, $crop ) ) ) return false; $resized_file = $editor->save(); if ( ! is_wp_error( $resized_file ) ) { $resized_rel_path = str_replace( $upload_dir, '', $resized_file['path'] ); $img_url = $upload_url . $resized_rel_path; } else { return false; } } } // Okay, leave the ship. if ( true === $upscale ) remove_filter( 'image_resize_dimensions', array( $this, 'aq_upscale' ) ); // Return the output. if ( $single ) { // str return. $image = $img_url; } else { // array return. $image = array ( 0 => $img_url, 1 => $dst_w, 2 => $dst_h ); } return $image; } /** * Callback to overwrite WP computing of thumbnail measures */ function aq_upscale( $default, $orig_w, $orig_h, $dest_w, $dest_h, $crop ) { if ( ! $crop ) return null; // Let the wordpress default function handle this. // Here is the point we allow to use larger image size than the original one. $aspect_ratio = $orig_w / $orig_h; $new_w = $dest_w; $new_h = $dest_h; if ( ! $new_w ) { $new_w = intval( $new_h * $aspect_ratio ); } if ( ! $new_h ) { $new_h = intval( $new_w / $aspect_ratio ); } $size_ratio = max( $new_w / $orig_w, $new_h / $orig_h ); $crop_w = round( $new_w / $size_ratio ); $crop_h = round( $new_h / $size_ratio ); $s_x = floor( ( $orig_w - $crop_w ) / 2 ); $s_y = floor( ( $orig_h - $crop_h ) / 2 ); return array( 0, 0, (int) $s_x, (int) $s_y, (int) $new_w, (int) $new_h, (int) $crop_w, (int) $crop_h ); } } } if(!function_exists('rev_aq_resize')){ /** * This is just a tiny wrapper function for the class above so that there is no * need to change any code in your own WP themes. Usage is still the same :) */ function rev_aq_resize($url, $width = null, $height = null, $crop = null, $single = true, $upscale = false){ /* WPML Fix */ if ( defined( 'ICL_SITEPRESS_VERSION' ) ){ global $sitepress; $url = $sitepress->convert_url( $url, $sitepress->get_default_language() ); } /* WPML Fix */ $aq_resize = Rev_Aq_Resize::getInstance(); $image = $aq_resize->process( $url, $width, $height, $crop, $single, $upscale ); return (!empty($image) || $image === false) ? $image : $url; } }