/home/arranoyd/logicraft/wp-content/themes/phlox/auxin/auxin-include/modules/lib/aq-resizer.php
<?php
/**
* Title : Aqua Resizer
* Description : Resizes WordPress images on the fly
* Version : 1.2.0
* 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
* @param bool $upscale - (optional) resizes smaller images
* @uses wp_get_upload_dir()
* @uses image_resize_dimensions()
* @uses wp_get_image_editor()
*
* @return str|array
*/
if( ! class_exists( 'Auxin_Aq_Resize' ) ) {
class Auxin_Aq_Exception extends Exception {}
class Auxin_Aq_Resize {
/**
* The singleton instance
*/
static private $instance = null;
/**
* Should an Auxin_Aq_Exception be thrown on error?
* If false (default), then the error will just be logged.
*/
public $throwOnError = false;
/**
* No initialization allowed
*/
private function __construct() {}
/**
* No cloning allowed
*/
private function __clone() {}
/**
* For your custom default usage you may want to initialize an Auxin_Aq_Resize object by yourself and then have own defaults
*/
static public function getInstance() {
if(self::$instance == null) {
self::$instance = new self;
}
return self::$instance;
}
/**
* Run, forest.
*/
public function process( $url, $width = null, $height = null, $crop = null, $quality = 100, $single = true, $upscale = false ) {
try {
// Validate inputs.
if (!$url)
throw new Auxin_Aq_Exception('$url parameter is required');
if (!$width)
$width = null;
if (!$height)
$height = null;
// 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_get_upload_dir();
$upload_dir = $upload_info['basedir'];
$upload_url = $upload_info['baseurl'];
$http_prefix = "http://";
$https_prefix = "https://";
$relative_prefix = "//"; // The protocol-relative URL
/* 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);
}
elseif(!strncmp($url,$relative_prefix,strlen($relative_prefix))){ //if url begins with // make $upload_url begin with // as well
$upload_url = str_replace(array( 0 => "$http_prefix", 1 => "$https_prefix"),$relative_prefix,$upload_url);
}
// Check if $img_url is local.
if ( false === strpos( $url, $upload_url ) )
return $url;
// 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 ) )
throw new Auxin_Aq_Exception('Image file does not exist (or is not an image): ' . $img_path);
// Get image info.
$info = pathinfo( $img_path );
$ext = $info['extension'];
list( $orig_w, $orig_h ) = getimagesize( $img_path );
// auto calculate the width or height if it was set to 'auto'
if( 'auto' === $height && is_numeric( $width ) ){
$height = $width * ( $orig_h / $orig_w );
}
if( 'auto' === $width && is_numeric( $height ) ){
$width = $height * ( $orig_w / $orig_h );
}
$width = is_numeric( $width ) ? round( $width ) : $width;
$height = is_numeric( $height ) ? round( $height ) : $height;
// Get image size after cropping.
$dims = image_resize_dimensions( $orig_w, $orig_h, $width, $height, $crop );
if ( empty( $dims ) ) {
return $url;
}
$dst_w = $dims[4];
$dst_h = $dims[5];
if( null === $height ){
$dst_h = $orig_h;
$height = $orig_h;
}
if( null === $width ){
$dst_w = $orig_w;
$width = $orig_w;
}
// 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 ) && ! $upscale ) ) ) {
$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.
// throw new Auxin_Aq_Exception('Unable to resize image because image_resize_dimensions() failed');
$img_url = $url;
}
// 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 ) ) ) {
if( method_exists( $editor, 'get_error_message' ) ){
throw new Auxin_Aq_Exception( 'Unable to get WP_Image_Editor: ' .
$editor->get_error_message() . ' (is GD or ImageMagick installed?)');
} else {
throw new Auxin_Aq_Exception( 'Unable to get WP_Image_Editor: is GD or ImageMagick installed?');
}
}
$editor->set_quality($quality);
$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;
} elseif( method_exists( $editor, 'get_error_message' ) ){
throw new Auxin_Aq_Exception( 'Unable to save resized image file: ' . $editor->get_error_message() );
} else {
throw new Auxin_Aq_Exception( 'Unable to save resized image file.' );
}
}
}
// 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;
}
catch ( Auxin_Aq_Exception $ex ) {
error_log('Auxin_Aq_Resize.process() error: ' . $ex->getMessage());
if ($this->throwOnError) {
// Bubble up exception.
throw $ex;
}
else {
// Return false, so that this patch is backwards-compatible.
return false;
}
}
}
public function get_file_extension( $url ){
return preg_replace( "#\?.*#", "", pathinfo( $url, PATHINFO_EXTENSION ) );
}
/**
* Weather URL file extension matches or not
*
* @param [type] $url URL
* @param [type] $ext Extension to be matched
*
* @return boolean
*/
public function is_file_extension( $url, $ext ){
return $this->get_file_extension( $url ) === $ext;
}
/**
* Callback to overwrite WP computing of thumbnail measures
*/
public 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 );
if ( ! is_array( $crop ) || count( $crop ) !== 2 ) {
$crop = array( 'center', 'center' );
}
list( $x, $y ) = $crop;
if ( 'left' === $x ) {
$s_x = 0;
} elseif ( 'right' === $x ) {
$s_x = $orig_w - $crop_w;
} else {
$s_x = floor( ( $orig_w - $crop_w ) / 2 );
}
if ( 'top' === $y ) {
$s_y = 0;
} elseif ( 'bottom' === $y ) {
$s_y = $orig_h - $crop_h;
} else {
$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 );
}
}
}
/**
* 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 auxin_aq_resize( $url, $width = null, $height = null, $crop = null, $quality = 100, $single = true, $upscale = false ) {
$aq_resize = Auxin_Aq_Resize::getInstance();
if( $aq_resize->is_file_extension( $url, 'svg' ) ){
return $url;
}
/* WPML Fix */
if ( function_exists('icl_object_id') ) {
$current_language = apply_filters( 'wpml_current_language', NULL );
$url = apply_filters( 'wpml_permalink', $url, $current_language, true );
}
/* PolyLang Fix */
if( function_exists( 'pll_current_language' ) && $current_language = pll_current_language() ){
$url = str_replace('/' . $current_language, '', $url );
}
$height = empty( $height ) && ! $crop ? 2300 : $height; // a hack to skip the height crop
if( $width < 0 ){
$width = null;
}
if( $height < 0 ){
$height = null;
}
return $aq_resize->process( $url, $width, $height, $crop, $quality, $single, $upscale );
}