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<?php |
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/** |
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* Main file for Imsanity plugin. |
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* |
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* This file includes the core of Imsanity and the top-level image handler. |
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* |
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* @link https://wordpress.org/plugins/imsanity/ |
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* @package Imsanity |
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*/ |
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|
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/* |
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Plugin Name: Imsanity |
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Plugin URI: https://wordpress.org/plugins/imsanity/ |
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Description: Imsanity stops insanely huge image uploads |
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Author: Exactly WWW |
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Text Domain: imsanity |
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Version: 2.4.3 |
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Author URI: https://ewww.io/ |
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License: GPLv3 |
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*/ |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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define( 'IMSANITY_VERSION', '2.4.3' ); |
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define( 'IMSANITY_SCHEMA_VERSION', '1.1' ); |
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|
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define( 'IMSANITY_DEFAULT_MAX_WIDTH', 1920 ); |
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define( 'IMSANITY_DEFAULT_MAX_HEIGHT', 1920 ); |
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define( 'IMSANITY_DEFAULT_BMP_TO_JPG', 1 ); |
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define( 'IMSANITY_DEFAULT_PNG_TO_JPG', 0 ); |
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define( 'IMSANITY_DEFAULT_QUALITY', 82 ); |
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|
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define( 'IMSANITY_SOURCE_POST', 1 ); |
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define( 'IMSANITY_SOURCE_LIBRARY', 2 ); |
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define( 'IMSANITY_SOURCE_OTHER', 4 ); |
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|
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if ( ! defined( 'IMSANITY_AJAX_MAX_RECORDS' ) ) { |
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define( 'IMSANITY_AJAX_MAX_RECORDS', 250 ); |
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} |
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|
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/** |
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* Load translations for Imsanity. |
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*/ |
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function imsanity_init() { |
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load_plugin_textdomain( 'imsanity', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' ); |
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} |
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|
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/** |
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* Import supporting libraries. |
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*/ |
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include_once( plugin_dir_path( __FILE__ ) . 'libs/utils.php' ); |
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include_once( plugin_dir_path( __FILE__ ) . 'settings.php' ); |
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include_once( plugin_dir_path( __FILE__ ) . 'ajax.php' ); |
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|
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/** |
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* Inspects the request and determines where the upload came from. |
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* |
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* @return IMSANITY_SOURCE_POST | IMSANITY_SOURCE_LIBRARY | IMSANITY_SOURCE_OTHER |
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*/ |
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function imsanity_get_source() { |
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$id = array_key_exists( 'post_id', $_REQUEST ) ? (int) $_REQUEST['post_id'] : ''; |
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$action = array_key_exists( 'action', $_REQUEST ) ? $_REQUEST['action'] : ''; |
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|
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// A post_id indicates image is attached to a post. |
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if ( $id > 0 ) { |
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return IMSANITY_SOURCE_POST; |
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} |
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|
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// If the referrer is the post editor, that's a good indication the image is attached to a post. |
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if ( ! empty( $_SERVER['HTTP_REFERER'] ) && strpos( $_SERVER['HTTP_REFERER'], '/post.php' ) ) { |
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return IMSANITY_SOURCE_POST; |
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} |
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|
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// Post_id of 0 is 3.x otherwise use the action parameter. |
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if ( 0 === $id || 'upload-attachment' === $action ) { |
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return IMSANITY_SOURCE_LIBRARY; |
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} |
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|
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// We don't know where this one came from but $_REQUEST['_wp_http_referer'] may contain info. |
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return IMSANITY_SOURCE_OTHER; |
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} |
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|
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/** |
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* Given the source, returns the max width/height. |
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* |
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* @example: list( $w, $h ) = imsanity_get_max_width_height( IMSANITY_SOURCE_LIBRARY ); |
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* @param int $source One of IMSANITY_SOURCE_POST | IMSANITY_SOURCE_LIBRARY | IMSANITY_SOURCE_OTHER. |
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*/ |
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function imsanity_get_max_width_height( $source ) { |
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$w = imsanity_get_option( 'imsanity_max_width', IMSANITY_DEFAULT_MAX_WIDTH ); |
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$h = imsanity_get_option( 'imsanity_max_height', IMSANITY_DEFAULT_MAX_HEIGHT ); |
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|
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switch ( $source ) { |
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case IMSANITY_SOURCE_POST: |
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break; |
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case IMSANITY_SOURCE_LIBRARY: |
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$w = imsanity_get_option( 'imsanity_max_width_library', $w ); |
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$h = imsanity_get_option( 'imsanity_max_height_library', $h ); |
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break; |
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default: |
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$w = imsanity_get_option( 'imsanity_max_width_other', $w ); |
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$h = imsanity_get_option( 'imsanity_max_height_other', $h ); |
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break; |
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} |
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|
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return array( $w, $h ); |
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} |
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|
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/** |
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* Handler after a file has been uploaded. If the file is an image, check the size |
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* to see if it is too big and, if so, resize and overwrite the original. |
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* |
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* @param Array $params The parameters submitted with the upload. |
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*/ |
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function imsanity_handle_upload( $params ) { |
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|
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// If "noresize" is included in the filename then we will bypass imsanity scaling. |
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if ( strpos( $params['file'], 'noresize' ) !== false ) { |
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return $params; |
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} |
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|
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// If preferences specify so then we can convert an original bmp or png file into jpg. |
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if ( 'image/bmp' === $params['type'] && imsanity_get_option( 'imsanity_bmp_to_jpg', IMSANITY_DEFAULT_BMP_TO_JPG ) ) { |
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$params = imsanity_convert_to_jpg( 'bmp', $params ); |
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} |
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|
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if ( 'image/png' === $params['type'] && imsanity_get_option( 'imsanity_png_to_jpg', IMSANITY_DEFAULT_PNG_TO_JPG ) ) { |
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$params = imsanity_convert_to_jpg( 'png', $params ); |
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} |
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|
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// Make sure this is a type of image that we want to convert and that it exists. |
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$oldpath = $params['file']; |
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|
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if ( ( ! is_wp_error( $params ) ) && is_file( $oldpath ) && is_readable( $oldpath ) && is_writable( $oldpath ) && filesize( $oldpath ) > 0 && in_array( $params['type'], array( 'image/png', 'image/gif', 'image/jpeg' ), true ) ) { |
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|
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// figure out where the upload is coming from. |
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$source = imsanity_get_source(); |
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|
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list( $maxw,$maxh ) = imsanity_get_max_width_height( $source ); |
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|
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list( $oldw, $oldh ) = getimagesize( $oldpath ); |
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|
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if ( ( $oldw > $maxw && $maxw > 0 ) || ( $oldh > $maxh && $maxh > 0 ) ) { |
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$quality = imsanity_get_option( 'imsanity_quality', IMSANITY_DEFAULT_QUALITY ); |
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|
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$ftype = imsanity_quick_mimetype( $oldpath ); |
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$orientation = imsanity_get_orientation( $oldpath, $ftype ); |
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// If we are going to rotate the image 90 degrees during the resize, swap the existing image dimensions. |
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if ( 6 === (int) $orientation || 8 === (int) $orientation ) { |
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$old_oldw = $oldw; |
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$oldw = $oldh; |
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$oldh = $old_oldw; |
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} |
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|
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if ( $oldw > $maxw && $maxw > 0 && $oldh > $maxh && $maxh > 0 && apply_filters( 'imsanity_crop_image', false ) ) { |
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$neww = $maxw; |
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$newh = $maxh; |
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} else { |
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list( $neww, $newh ) = wp_constrain_dimensions( $oldw, $oldh, $maxw, $maxh ); |
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} |
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|
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remove_filter( 'wp_image_editors', 'ewww_image_optimizer_load_editor', 60 ); |
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$resizeresult = imsanity_image_resize( $oldpath, $neww, $newh, apply_filters( 'imsanity_crop_image', false ), null, null, $quality ); |
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if ( function_exists( 'ewww_image_optimizer_load_editor' ) ) { |
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add_filter( 'wp_image_editors', 'ewww_image_optimizer_load_editor', 60 ); |
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} |
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|
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if ( $resizeresult && ! is_wp_error( $resizeresult ) ) { |
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$newpath = $resizeresult; |
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|
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if ( is_file( $newpath ) && filesize( $newpath ) < filesize( $oldpath ) ) { |
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// we saved some file space. remove original and replace with resized image. |
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unlink( $oldpath ); |
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rename( $newpath, $oldpath ); |
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} elseif ( is_file( $newpath ) ) { |
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// theresized image is actually bigger in filesize (most likely due to jpg quality). |
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// keep the old one and just get rid of the resized image. |
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unlink( $newpath ); |
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} |
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} elseif ( false === $resizeresult ) { |
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return $params; |
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} elseif ( is_wp_error( $resizeresult ) ) { |
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// resize didn't work, likely because the image processing libraries are missing. |
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// remove the old image so we don't leave orphan files hanging around. |
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unlink( $oldpath ); |
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|
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$params = wp_handle_upload_error( |
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$oldpath, |
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sprintf( |
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/* translators: 1: error message 2: link to support forums */ |
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esc_html__( 'Imsanity was unable to resize this image for the following reason: %1$s. If you continue to see this error message, you may need to install missing server components. If you think you have discovered a bug, please report it on the Imsanity support forum: %2$s', 'imsanity' ), |
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$resizeresult->get_error_message(), |
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'https://wordpress.org/support/plugin/imsanity' |
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) |
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); |
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} else { |
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return $params; |
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} |
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} |
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} |
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clearstatcache(); |
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return $params; |
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} |
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|
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|
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/** |
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* Read in the image file from the params and then save as a new jpg file. |
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* if successful, remove the original image and alter the return |
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* parameters to return the new jpg instead of the original |
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* |
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* @param string $type Type of the image to be converted: 'bmp' or 'png'. |
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* @param array $params The upload parameters. |
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* @return array altered params |
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*/ |
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function imsanity_convert_to_jpg( $type, $params ) { |
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|
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$img = null; |
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|
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if ( 'bmp' === $type ) { |
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include_once( 'libs/imagecreatefrombmp.php' ); |
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$img = imagecreatefrombmp( $params['file'] ); |
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} elseif ( 'png' === $type ) { |
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if ( ! function_exists( 'imagecreatefrompng' ) ) { |
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return wp_handle_upload_error( $params['file'], esc_html__( 'Imsanity requires the GD library to convert PNG images to JPG', 'imsanity' ) ); |
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} |
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|
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$input = imagecreatefrompng( $params['file'] ); |
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// convert png transparency to white. |
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$img = imagecreatetruecolor( imagesx( $input ), imagesy( $input ) ); |
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imagefill( $img, 0, 0, imagecolorallocate( $img, 255, 255, 255 ) ); |
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imagealphablending( $img, true ); |
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imagecopy( $img, $input, 0, 0, 0, 0, imagesx( $input ), imagesy( $input ) ); |
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} else { |
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return wp_handle_upload_error( $params['file'], esc_html__( 'Unknown image type specified in imsanity_convert_to_jpg', 'imsanity' ) ); |
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} |
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|
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// We need to change the extension from the original to .jpg so we have to ensure it will be a unique filename. |
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$uploads = wp_upload_dir(); |
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$oldfilename = basename( $params['file'] ); |
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$newfilename = basename( str_ireplace( '.' . $type, '.jpg', $oldfilename ) ); |
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$newfilename = wp_unique_filename( $uploads['path'], $newfilename ); |
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|
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$quality = imsanity_get_option( 'imsanity_quality', IMSANITY_DEFAULT_QUALITY ); |
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|
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if ( imagejpeg( $img, $uploads['path'] . '/' . $newfilename, $quality ) ) { |
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// Conversion succeeded: remove the original bmp & remap the params. |
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unlink( $params['file'] ); |
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|
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$params['file'] = $uploads['path'] . '/' . $newfilename; |
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$params['url'] = $uploads['url'] . '/' . $newfilename; |
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$params['type'] = 'image/jpeg'; |
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} else { |
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unlink( $params['file'] ); |
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|
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return wp_handle_upload_error( |
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$oldfilename, |
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/* translators: %s: the image mime type */ |
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sprintf( esc_html__( 'Imsanity was unable to process the %s file. If you continue to see this error you may need to disable the conversion option in the Imsanity settings.', 'imsanity' ), $type ) |
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); |
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} |
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|
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return $params; |
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} |
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|
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/* add filters to hook into uploads */ |
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add_filter( 'wp_handle_upload', 'imsanity_handle_upload' ); |
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add_action( 'plugins_loaded', 'imsanity_init' ); |
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|
