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<?php
/**
* Class and methods to extend the WP_Image_Editor_Imagick class.
*
* @link https://ewww.io
* @package EWWW_Image_Optimizer
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Extension of the WP_Image_Editor_Imagick class to auto-compress edited images.
*
* @see WP_Image_Editor_Imagick
*/
class EWWWIO_Imagick_Editor extends WP_Image_Editor_Imagick {
/**
* GD Resource.
*
* @access protected
* @var resource|GdImage $ewww_image
*/
protected $ewww_image;
/**
* Site (URL) for the plugin to use.
*
* @access protected
* @var string $site_url
*/
protected $modified = false;
/**
* Type of PNG image: PNG8, PNG24, PNG32, or ''.
*
* @access protected
* @var string $png_color_depth
*/
protected $png_color_depth = '';
/**
* Stores the information whether the image is indexed-color encoded.
*
* @access protected
* @var bool
*/
protected $indexed_color_encoded = false;
/**
* Stores the information whether the image is indexed-color encoded.
*
* @access protected
* @var int
*/
protected $indexed_pixel_depth = false;
/**
* How many colors are allowed for an image that is indexed-color encoded.
*
* @access protected
* @var int
*/
protected $indexed_max_colors = false;
/**
* Gets the bit depth for PNG images and checks for indexed-color mode.
*
* Access the file directly, as we cannot currently rely on Imagick to identify
* palette images with alpha support.
*
* @since 6.6.0
*/
protected function get_png_color_depth() {
if ( 'image/png' !== $this->mime_type ) {
return;
}
if ( wp_is_stream( $this->file ) ) {
return;
}
if ( ! is_file( $this->file ) ) {
return;
}
if ( filesize( $this->file ) < 24 ) {
return;
}
$file_handle = fopen( $this->file, 'rb' );
if ( ! $file_handle ) {
return;
}
$png_header = fread( $file_handle, 4 );
if ( chr( 0x89 ) . 'PNG' !== $png_header ) {
return;
}
// Move forward 8 bytes.
fread( $file_handle, 8 );
$png_ihdr = fread( $file_handle, 4 );
// Make sure we have an IHDR.
if ( 'IHDR' !== $png_ihdr ) {
return;
}
// Skip past the dimensions.
$dimensions = fread( $file_handle, 8 );
// Bit depth: 1 byte
// Bit depth is a single-byte integer giving the number of bits per sample or
// per palette index (not per pixel).
//
// Valid values are 1, 2, 4, 8, and 16, although not all values are allowed for all color types.
$this->indexed_pixel_depth = ord( (string) fread( $file_handle, 1 ) );
// Color type is a single-byte integer that describes the interpretation of the image data.
// Color type codes represent sums of the following values:
// 1 (palette used), 2 (color used), and 4 (alpha channel used).
// The valid color types are:
// 0 => Grayscale
// 2 => Truecolor
// 3 => Indexed
// 4 => Greyscale with alpha
// 6 => Truecolour with alpha
//
// Valid values are 0, 2, 3, 4, and 6.
$color_type = ord( (string) fread( $file_handle, 1 ) );
if ( 3 === (int) $color_type ) {
$this->indexed_color_encoded = true;
}
fclose( $file_handle );
}
/**
* Resizes current image.
* Wraps _resize, since _resize returns a GD Resource.
*
* At minimum, either a height or width must be provided.
* If one of the two is set to null, the resize will
* maintain aspect ratio according to the provided dimension.
*
* @since 4.6.0
*
* @param int|null $max_w Image width.
* @param int|null $max_h Image height.
* @param bool $crop Optional. Scale by default, crop if true.
* @return true|WP_Error
*/
public function resize( $max_w, $max_h, $crop = false ) {
ewwwio_debug_message( '<b>wp_image_editor_imagick::' . __FUNCTION__ . '()</b>' );
if ( (int) $this->size['width'] === (int) $max_w && (int) $this->size['height'] === (int) $max_h ) {
return true;
}
$dims = image_resize_dimensions( $this->size['width'], $this->size['height'], $max_w, $max_h, $crop );
if ( ! $dims ) {
return new WP_Error( 'error_getting_dimensions', __( 'Could not calculate resized image dimensions' ) ); // phpcs:ignore WordPress.WP.I18n.MissingArgDomain
}
list( $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h ) = $dims;
$resized = $this->_resize( $dims, $crop );
if ( is_string( $resized ) ) {
$this->ewww_image = $resized;
return $resized;
} elseif ( is_wp_error( $resized ) ) {
return $resized;
}
return $this->update_size( $dst_w, $dst_h );
}
/**
* Resizes current image.
*
* Uses gifsicle to preserve GIF animations.
*
* @since 4.6.0
*
* @param array $dims {
* All parameters necessary for resizing.
*
* @type int $dst_x X-coordinate of destination image (usually 0).
* @type int $dst_y Y-coordinate of destination image (usually 0).
* @type int $src_x X-coordinate of source image (usually 0 unless cropping).
* @type int $src_y Y-coordinate of source image (usually 0 unless cropping).
* @type int $dst_w Desired image width.
* @type int $dst_h Desired image height.
* @type int $src_w Source width.
* @type int $src_h Source height.
* }
* @param bool $crop Should we crop or should we scale.
* @return bool|WP_Error
*/
protected function _resize( $dims, $crop ) {
ewwwio_debug_message( '<b>wp_image_editor_imagick::' . __FUNCTION__ . '()</b>' );
list( $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h ) = $dims;
if ( defined( 'EWWWIO_EDITOR_AGR' ) && ! EWWWIO_EDITOR_AGR ) {
ewwwio_debug_message( 'AGR disabled' );
if ( $crop ) {
return $this->crop( $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h );
}
return $this->thumbnail_image( $dst_w, $dst_h );
}
if ( defined( 'EWWWIO_EDITOR_BETTER_RESIZE' ) && ! EWWW_IO_EDITOR_BETTER_RESIZE ) {
ewwwio_debug_message( 'API resize disabled' );
if ( $crop ) {
return $this->crop( $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h );
}
return $this->thumbnail_image( $dst_w, $dst_h );
}
$return_parent = false; // An indicator for whether we should short-circuit and use the parent thumbnail_image method.
$ewww_status = get_transient( 'ewww_image_optimizer_cloud_status' );
if ( 'image/gif' === $this->mime_type && ! ewww_image_optimizer_get_option( 'ewww_image_optimizer_cloud_key' ) ) {
$gifsicle_path = ewwwio()->local->get_path( 'gifsicle' );
if ( empty( $gifsicle_path ) ) {
ewwwio_debug_message( 'no gifsicle to resize an animated GIF' );
$return_parent = true;
}
}
// If this is a GIF, and we have no gifsicle, and there's an API key, but the status isn't 'great'.
if (
'image/gif' === $this->mime_type &&
empty( $gifsicle_path ) &&
false === strpos( $ewww_status, 'great' ) &&
ewww_image_optimizer_get_option( 'ewww_image_optimizer_cloud_key' )
) {
ewwwio_debug_message( 'no API key to resize an animated GIF' );
$return_parent = true;
}
// If this is some other image, and there's an API key, but the status isn't 'great'.
if (
'image/gif' !== $this->mime_type &&
false === strpos( $ewww_status, 'great' ) &&
ewww_image_optimizer_get_option( 'ewww_image_optimizer_cloud_key' )
) {
ewwwio_debug_message( 'no API to resize the image' );
$return_parent = true;
}
// If this isn't a GIF, or if the GIF isn't animated, then bail.
if ( 'image/gif' !== $this->mime_type || ! ewww_image_optimizer_is_animated( $this->file ) ) {
ewwwio_debug_message( 'not an animated GIF' );
$return_parent = true;
}
if ( $this->modified ) {
ewwwio_debug_message( 'image already altered, leave it alone' );
$return_parent = true;
}
if (
! $this->file ||
ewww_image_optimizer_stream_wrapped( $this->file ) ||
0 === strpos( $this->file, 'http' ) ||
0 === strpos( $this->file, 'ftp' ) ||
! ewwwio_is_file( $this->file )
) {
ewwwio_debug_message( 'could not load original file, or remote path detected' );
$return_parent = true;
}
if ( $return_parent ) {
if ( $crop ) {
return $this->crop( $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h );
}
return $this->thumbnail_image( $dst_w, $dst_h );
}
$resize_result = ewww_image_optimizer_better_resize( $this->file, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h );
if ( is_wp_error( $resize_result ) ) {
return $resize_result;
}
$imagick = new Imagick();
$new_size = array();
try {
$imagick->clear();
$imagick->readImageBlob( $resize_result );
if ( function_exists( 'getimagesizefromstring' ) ) {
$gd_size_info = getimagesizefromstring( $resize_result );
}
if ( ! empty( $gd_size_info ) ) {
$new_size['width'] = $gd_size_info[0];
$new_size['height'] = $gd_size_info[1];
} else {
$new_size = $imagick->getImageGeometry();
}
ewwwio_debug_message( 'new size: ' . implode( 'x', $new_size ) );
} catch ( Exception $e ) {
return new WP_Error( 'image_resize_error', $e->getMessage(), $this->file );
}
$this->image = $imagick;
if ( empty( $new_size ) ) {
return new WP_Error( 'image_resize_error', __( 'Image resize failed.', 'ewww-image-optimizer' ), );
}
$this->update_size( $new_size['width'], $new_size['height'] );
return $resize_result;
}
/**
* Efficiently resize the current image
*
* This is a WordPress specific implementation of Imagick::thumbnailImage(),
* which resizes an image to given dimensions and removes any associated profiles.
*
* @since 4.5.0
*
* @param int $dst_w The destination width.
* @param int $dst_h The destination height.
* @param string $filter_name Optional. The Imagick filter to use when resizing. Default 'FILTER_TRIANGLE'.
* @param bool $strip_meta Optional. Strip all profiles, excluding color profiles, from the image. Default true.
* @return void|WP_Error
*/
protected function thumbnail_image( $dst_w, $dst_h, $filter_name = 'FILTER_TRIANGLE', $strip_meta = true ) {
ewwwio_debug_message( '<b>wp_image_editor_imagick::' . __FUNCTION__ . '()</b>' );
$allowed_filters = array(
'FILTER_POINT',
'FILTER_BOX',
'FILTER_TRIANGLE',
'FILTER_HERMITE',
'FILTER_HANNING',
'FILTER_HAMMING',
'FILTER_BLACKMAN',
'FILTER_GAUSSIAN',
'FILTER_QUADRATIC',
'FILTER_CUBIC',
'FILTER_CATROM',
'FILTER_MITCHELL',
'FILTER_LANCZOS',
'FILTER_BESSEL',
'FILTER_SINC',
);
$filter_name = apply_filters( 'eio_image_resize_filter', $filter_name, $dst_w, $dst_h );
ewwwio_debug_message( "using resize filter $filter_name" );
/**
* Set the filter value if '$filter_name' name is in the allowed list and the related
* Imagick constant is defined or fall back to the default filter.
*/
if ( in_array( $filter_name, $allowed_filters, true ) && defined( 'Imagick::' . $filter_name ) ) {
$filter = constant( 'Imagick::' . $filter_name );
} else {
$filter = defined( 'Imagick::FILTER_TRIANGLE' ) ? Imagick::FILTER_TRIANGLE : false;
}
if ( 'image/png' === $this->mime_type ) {
ewwwio_debug_message( 'this image is type: ' . $this->image->getImageType() );
$this->get_png_color_depth();
if ( $this->indexed_color_encoded ) {
$current_colors = 500; // Fail-safe for more than any indexed PNG could have.
if ( is_callable( array( $this->image, 'getImageColors' ) ) ) {
$current_colors = $this->image->getImageColors();
}
switch ( $this->indexed_pixel_depth ) {
case 8:
$max_colors = 255;
break;
case 4:
$max_colors = 16;
break;
case 2:
$max_colors = 4;
break;
case 1:
$max_colors = 2;
break;
default:
$max_colors = 255;
}
$this->indexed_max_colors = min( $max_colors, $current_colors );
ewwwio_debug_message( "indexed image with pixel depth {$this->indexed_pixel_depth} limiting to {$this->indexed_max_colors} colors" );
}
}
/**
* Filters whether to strip metadata from images when they're resized.
*
* This filter only applies when resizing using the Imagick editor since GD
* always strips profiles by default.
*
* @since 4.5.0
*
* @param bool $strip_meta Whether to strip image metadata during resizing. Default true.
*/
if ( apply_filters( 'image_strip_meta', $strip_meta ) ) {
$this->strip_meta(); // Fail silently if not supported.
}
try {
/*
* To be more efficient, resample large images to 5x the destination size before resizing
* whenever the output size is less that 1/3 of the original image size (1/3^2 ~= .111),
* unless we would be resampling to a scale smaller than 128x128.
*/
if ( is_callable( array( $this->image, 'sampleImage' ) ) ) {
$resize_ratio = ( $dst_w / $this->size['width'] ) * ( $dst_h / $this->size['height'] );
$sample_factor = 5;
if ( $resize_ratio < .111 && ( $dst_w * $sample_factor > 128 && $dst_h * $sample_factor > 128 ) ) {
$this->image->sampleImage( $dst_w * $sample_factor, $dst_h * $sample_factor );
}
}
/*
* Use resizeImage() when it's available and a valid filter value is set.
* Otherwise, fall back to the scaleImage() method for resizing, which
* results in better image quality over resizeImage() with default filter
* settings and retains backward compatibility with pre 4.5 functionality.
*/
if ( is_callable( array( $this->image, 'resizeImage' ) ) && $filter ) {
$this->image->setOption( 'filter:support', '2.0' );
$this->image->resizeImage( $dst_w, $dst_h, $filter, 1 );
} else {
$this->image->scaleImage( $dst_w, $dst_h );
}
// Set appropriate quality settings after resizing.
if ( 'image/jpeg' === $this->mime_type ) {
if ( apply_filters( 'eio_use_adaptive_sharpen', false, $dst_w, $dst_h ) && is_callable( array( $this->image, 'adaptiveSharpenImage' ) ) ) {
$radius = apply_filters( 'eio_adaptive_sharpen_radius', 0, $dst_w, $dst_h );
$sigma = apply_filters( 'eio_adaptive_sharpen_sigma', 1, $dst_w, $dst_h );
ewwwio_debug_message( "running adaptiveSharpenImage( $radius, $sigma )" );
$this->image->adaptiveSharpenImage( $radius, $sigma );
} elseif ( is_callable( array( $this->image, 'unsharpMaskImage' ) ) ) {
$radius = apply_filters( 'eio_sharpen_radius', 0.25, $dst_w, $dst_h );
$sigma = apply_filters( 'eio_sharpen_sigma', 0.25, $dst_w, $dst_h );
$amount = apply_filters( 'eio_sharpen_amount', 8, $dst_w, $dst_h );
$threshold = apply_filters( 'eio_sharpen_threshold', 0.065, $dst_w, $dst_h );
ewwwio_debug_message( "running unsharpMaskImage( $radius, $sigma, $amount, $threshold )" );
$this->image->unsharpMaskImage( $radius, $sigma, $amount, $threshold );
// $this->image->unsharpMaskImage( 0.25, 0.25, 8, 0.065 ); // core WP defaults.
// $this->image->unsharpMaskImage( 0, 0.4, 1.2, 0.01 ); // values from the Better Images plugin.
}
$this->image->setOption( 'jpeg:fancy-upsampling', 'off' );
}
if ( 'image/png' === $this->mime_type ) {
$this->image->setOption( 'png:compression-filter', '5' );
$this->image->setOption( 'png:compression-level', '9' );
$this->image->setOption( 'png:compression-strategy', '1' );
if ( $this->indexed_color_encoded
&& is_callable( array( $this->image, 'getImageAlphaChannel' ) )
&& $this->image->getImageAlphaChannel()
) {
$this->image->setOption( 'png:include-chunk', 'tRNS' );
} else {
$this->image->setOption( 'png:exclude-chunk', 'all' );
}
}
if ( $this->indexed_color_encoded ) {
if ( ! empty( $this->indexed_max_colors ) && ! ewww_image_optimizer_pngquant_reduce_available() ) {
ewwwio_debug_message( "doing quantizeImage on $this->file ($dst_w,$dst_h) to reduce palette to $this->indexed_max_colors" );
$this->image->quantizeImage( $this->indexed_max_colors, $this->image->getColorspace(), 0, false, false );
ewwwio_debug_message( "originally we had $current_colors colors, and now we have " . $this->image->getImageColors() );
/**
* ImageMagick likes to convert gray indexed images to grayscale.
* So, if the colorspace has changed to 'gray', use the png8 format
* to ensure it stays indexed.
*/
if ( Imagick::COLORSPACE_GRAY === $this->image->getImageColorspace() ) {
$this->image->setOption( 'png:format', 'png8' );
}
}
}
/*
* If alpha channel is not defined, set it opaque.
*
* Note that Imagick::getImageAlphaChannel() is only available if Imagick
* has been compiled against ImageMagick version 6.4.0 or newer.
*/
if ( is_callable( array( $this->image, 'getImageAlphaChannel' ) )
&& is_callable( array( $this->image, 'setImageAlphaChannel' ) )
&& defined( 'Imagick::ALPHACHANNEL_UNDEFINED' )
&& defined( 'Imagick::ALPHACHANNEL_OPAQUE' )
) {
if ( $this->image->getImageAlphaChannel() === Imagick::ALPHACHANNEL_UNDEFINED ) {
$this->image->setImageAlphaChannel( Imagick::ALPHACHANNEL_OPAQUE );
}
}
// Limit the bit depth of resized images to 8 bits per channel.
if ( is_callable( array( $this->image, 'getImageDepth' ) ) && is_callable( array( $this->image, 'setImageDepth' ) ) ) {
if ( 8 < $this->image->getImageDepth() ) {
$this->image->setImageDepth( 8 );
}
}
if ( is_callable( array( $this->image, 'setInterlaceScheme' ) ) && defined( 'Imagick::INTERLACE_NO' ) ) {
$this->image->setInterlaceScheme( Imagick::INTERLACE_NO );
}
} catch ( Exception $e ) {
return new WP_Error( 'image_resize_error', $e->getMessage() );
}
}
/**
* Resize multiple images from a single source.
*
* @since 4.6.0
*
* @param array $sizes {
* An array of image size arrays. Default sizes are 'small', 'medium', 'medium_large', 'large'.
*
* Either a height or width must be provided.
* If one of the two is set to null, the resize will
* maintain aspect ratio according to the provided dimension.
* Likewise, if crop is false, aspect ratio will also be preserved.
*
* @type array $size {
* Array of height, width values, and whether to crop.
*
* @type int $width Image width. Optional if `$height` is specified.
* @type int $height Image height. Optional if `$width` is specified.
* @type bool $crop Optional. Whether to crop the image. Default false.
* }
* }
* @return array An array of resized images' metadata by size.
*/
public function multi_resize( $sizes ) {
ewwwio_debug_message( '<b>wp_image_editor_imagick::' . __FUNCTION__ . '()</b>' );
$metadata = array();
$orig_size = $this->size;
$orig_image = $this->image->getImage();
foreach ( $sizes as $size => $size_data ) {
if ( ! $this->image ) {
$this->image = $orig_image->getImage();
}
if ( ! isset( $size_data['width'] ) && ! isset( $size_data['height'] ) ) {
continue;
}
if ( ! isset( $size_data['width'] ) ) {
$size_data['width'] = null;
}
if ( ! isset( $size_data['height'] ) ) {
$size_data['height'] = null;
}
if ( ! isset( $size_data['crop'] ) ) {
$size_data['crop'] = false;
}
$resize_result = $this->resize( $size_data['width'], $size_data['height'], $size_data['crop'] );
$duplicate = ( (int) $orig_size['width'] === (int) $size_data['width'] && (int) $orig_size['height'] === (int) $size_data['height'] );
if ( ! is_wp_error( $resize_result ) && ! $duplicate ) {
if ( is_string( $resize_result ) ) {
$resized = $this->_save_file_from_string( $resize_result );
unset( $resize_result );
// Note sure this bit is necessary, but just to be safe.
$this->image->clear();
$this->image->destroy();
$this->image = null;
} else {
$resized = $this->_save( $this->image );
$this->image->clear();
$this->image->destroy();
$this->image = null;
}
if ( ! is_wp_error( $resized ) && $resized ) {
unset( $resized['path'] );
$metadata[ $size ] = $resized;
}
}
$this->size = $orig_size;
}
$this->image = $orig_image;
return $metadata;
}
/**
* Crops Image.
*
* Currently does nothing more than call the parent and let us know the image is modified.
*
* @since 4.6.0
*
* @param int $src_x The start x position to crop from.
* @param int $src_y The start y position to crop from.
* @param int $src_w The width to crop.
* @param int $src_h The height to crop.
* @param int $dst_w Optional. The destination width.
* @param int $dst_h Optional. The destination height.
* @param bool $src_abs Optional. If the source crop points are absolute.
* @return bool|WP_Error
*/
public function crop( $src_x, $src_y, $src_w, $src_h, $dst_w = null, $dst_h = null, $src_abs = false ) {
$this->modified = 'crop';
return parent::crop( $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h, $src_abs );
}
/**
* Rotates current image counter-clockwise by $angle.
*
* Currently does nothing more than call the parent and let us know the image is modified.
*
* @since 4.6.0
*
* @param float $angle The number of degrees for rotation.
* @return true|WP_Error
*/
public function rotate( $angle ) {
$this->modified = 'rotate';
return parent::rotate( $angle );
}
/**
* Flips current image.
*
* Currently does nothing more than call the parent and let us know the image is modified.
*
* @since 4.6.0
*
* @param bool $horz Flip along Horizontal Axis.
* @param bool $vert Flip along Vertical Axis.
* @return true|WP_Error
*/
public function flip( $horz, $vert ) {
$this->modified = 'flip';
return parent::flip( $horz, $vert );
}
/**
* Saves a file from the EWWW IO API-enabled image editor.
*
* @since 4.6.0
*
* @param string $image A string containing the image contents.
* @param string $filename Optional. The name of the file to be saved to.
* @param string $mime_type Optional. The mimetype of the file.
* @return WP_Error|array The full path, base filename, and mimetype.
*/
protected function _save_file_from_string( $image, $filename = null, $mime_type = null ) {
ewwwio_debug_message( '<b>wp_image_editor_imagick::' . __FUNCTION__ . '()</b>' );
list( $filename, $extension, $mime_type ) = $this->get_output_format( $filename, $mime_type );
if ( ! $filename ) {
$filename = $this->generate_filename( null, null, $extension );
}
if ( wp_is_stream( $filename ) ) {
unset( $this->ewww_image );
return parent::_save( $this->image, $filename, $mime_type );
}
if ( ! is_string( $image ) ) {
unset( $this->ewww_image );
return parent::_save( $image, $filename, $mime_type );
}
global $ewww_preempt_editor;
if ( ( ! defined( 'EWWWIO_EDITOR_OVERWRITE' ) || ! EWWWIO_EDITOR_OVERWRITE ) && ewwwio_is_file( $filename ) && empty( $ewww_preempt_editor ) ) {
ewwwio_debug_message( "detected existing file: $filename" );
$current_size = wp_getimagesize( $filename );
if ( $current_size && (int) $this->size['width'] === (int) $current_size[0] && (int) $this->size['height'] === (int) $current_size[1] ) {
ewwwio_debug_message( "existing file has same dimensions, not saving $filename" );
return array(
'path' => $filename,
'file' => wp_basename( apply_filters( 'image_make_intermediate_size', $filename ) ),
'width' => $this->size['width'],
'height' => $this->size['height'],
'mime-type' => $mime_type,
);
}
}
// Write out the image (substitute for $this->make_image()).
wp_mkdir_p( dirname( $filename ) );
$result = file_put_contents( $filename, $image );
if ( $result ) {
ewwwio_debug_message( "image editor (imagick-api-enhanced) saved: $filename" );
if ( is_writable( $filename ) ) {
$stat = stat( dirname( $filename ) );
$perms = $stat['mode'] & 0000666; // Same permissions as parent folder with executable bits stripped.
ewwwio_chmod( $filename, $perms );
}
ewwwio_memory( __FUNCTION__ );
return array(
'path' => $filename,
'file' => wp_basename( apply_filters( 'image_make_intermediate_size', $filename ) ),
'width' => $this->size['width'],
'height' => $this->size['height'],
'mime-type' => $mime_type,
);
}
ewwwio_memory( __FUNCTION__ );
return new WP_Error( 'image_save_error', __( 'Image Editor Save Failed' ) ); // phpcs:ignore WordPress.WP.I18n.MissingArgDomain
}
/**
* Saves a file from the image editor.
*
* @since 1.7.0
*
* @param resource $image An Imagick image object. Not actually used for some reason.
* @param string $filename Optional. The name of the file to be saved to.
* @param string $mime_type Optional. The mimetype of the file.
* @return WP_Error| array The full path, base filename, width, height, and mimetype.
*/
protected function _save( $image, $filename = null, $mime_type = null ) {
ewwwio_debug_message( '<b>wp_image_editor_imagick::' . __FUNCTION__ . '()</b>' );
// If something is in the 'ewww_image' property, meaning this is likely a GIF that has been
// resized by EWWW IO, and the image wasn't otherwise cropped, rotated, etc.
if ( ! empty( $this->ewww_image ) && ! $this->modified ) {
return $this->_save_file_from_string( $this->ewww_image, $filename, $mime_type );
}
list( $filename, $extension, $mime_type ) = $this->get_output_format( $filename, $mime_type );
if ( ! $filename ) {
$filename = $this->generate_filename( null, null, $extension );
}
\ewwwio_debug_message( "saving $filename" );
if ( ( ! defined( 'EWWWIO_EDITOR_OVERWRITE' ) || ! EWWWIO_EDITOR_OVERWRITE ) && ewwwio_is_file( $filename ) ) {
ewwwio_debug_message( "detected existing file: $filename" );
$current_size = wp_getimagesize( $filename );
if ( $current_size && (int) $this->size['width'] === (int) $current_size[0] && (int) $this->size['height'] === (int) $current_size[1] ) {
ewwwio_debug_message( "existing file has same dimensions, not saving $filename" );
return array(
'path' => $filename,
'file' => wp_basename( apply_filters( 'image_make_intermediate_size', $filename ) ),
'width' => $this->size['width'],
'height' => $this->size['height'],
'mime-type' => $mime_type,
);
}
}
$sharp_yuv = defined( 'EIO_WEBP_SHARP_YUV' ) && EIO_WEBP_SHARP_YUV ? true : false;
if ( empty( $sharp_yuv ) && \ewww_image_optimizer_get_option( 'ewww_image_optimizer_sharpen' ) ) {
$sharp_yuv = true;
}
$profiles = array();
try {
// Store original format.
$orig_format = $this->image->getImageFormat();
\ewwwio_debug_message( "original format is $orig_format" );
if ( 'image/webp' === $mime_type ) {
if ( ewww_image_optimizer_get_option( 'ewww_image_optimizer_metadata_remove' ) ) {
// Getting possible color profiles.
$profiles = $this->image->getImageProfiles( 'icc', true );
}
\ewwwio_debug_message( 'checking colorspace for WebP (in case of incompatible CMYK)' );
$color = $this->image->getImageColorspace();
\ewwwio_debug_message( "color space is $color" );
if ( Imagick::COLORSPACE_CMYK === $color ) {
\ewwwio_debug_message( 'found CMYK image' );
if ( \ewwwio_is_file( EWWW_IMAGE_OPTIMIZER_PLUGIN_PATH . 'vendor/icc/sRGB2014.icc' ) ) {
\ewwwio_debug_message( 'adding sRGB2014.icc profile' );
$icc_profile = file_get_contents( EWWW_IMAGE_OPTIMIZER_PLUGIN_PATH . 'vendor/icc/sRGB2014.icc' );
$this->image->profileImage( 'icc', $icc_profile );
}
\ewwwio_debug_message( 'attempting SRGB transform' );
$this->image->transformImageColorspace( Imagick::COLORSPACE_SRGB );
\ewwwio_debug_message( 'removing icc profile' );
$this->image->setImageProfile( '*', null );
$profiles = array();
}
}
$this->image->setImageFormat( strtoupper( $this->get_extension( $mime_type ) ) );
if ( 'image/webp' === $mime_type ) {
if ( $sharp_yuv ) {
\ewwwio_debug_message( 'enabling sharp_yuv' );
$this->image->setOption( 'webp:use-sharp-yuv', 'true' );
}
if ( \ewww_image_optimizer_get_option( 'ewww_image_optimizer_metadata_remove' ) ) {
\ewwwio_debug_message( 'removing meta' );
$this->image->stripImage();
if ( ! empty( $profiles ) ) {
\ewwwio_debug_message( 'adding color profile to WebP' );
$this->image->profileImage( 'icc', $profiles['icc'] );
}
}
}
} catch ( Exception $e ) {
return new WP_Error( 'image_save_error', $e->getMessage(), $filename );
}
if ( method_exists( $this->image, 'setInterlaceScheme' )
&& method_exists( $this->image, 'getInterlaceScheme' )
&& defined( 'Imagick::INTERLACE_PLANE' )
) {
$orig_interlace = $this->image->getInterlaceScheme();
/** This filter is documented in wp-includes/class-wp-image-editor-gd.php */
if ( apply_filters( 'image_save_progressive', false, $mime_type ) ) {
$this->image->setInterlaceScheme( Imagick::INTERLACE_PLANE ); // True - line interlace output.
} else {
$this->image->setInterlaceScheme( Imagick::INTERLACE_NO ); // False - no interlace output.
}
}
$write_image_result = $this->write_image( $this->image, $filename );
if ( is_wp_error( $write_image_result ) ) {
return $write_image_result;
}
try {
// Reset original format.
$this->image->setImageFormat( $orig_format );
if ( isset( $orig_interlace ) ) {
$this->image->setInterlaceScheme( $orig_interlace );
}
} catch ( Exception $e ) {
return new WP_Error( 'image_save_error', $e->getMessage(), $filename );
}
// Set correct file permissions.
$stat = stat( dirname( $filename ) );
$perms = $stat['mode'] & 0000666; // Same permissions as parent folder, strip off the executable bits.
chmod( $filename, $perms );
if ( ewwwio_is_file( $filename ) ) {
if ( $this->indexed_color_encoded ) {
ewwwio_debug_message( "reducing to $this->indexed_max_colors colors" );
ewww_image_optimizer_reduce_palette( $filename, $this->indexed_max_colors );
}
global $ewww_preempt_editor;
if ( empty( $ewww_preempt_editor ) && defined( 'EWWW_IMAGE_OPTIMIZER_ENABLE_EDITOR' ) && EWWW_IMAGE_OPTIMIZER_ENABLE_EDITOR ) {
ewww_image_optimizer( $filename );
}
ewwwio_debug_message( "image editor (imagick) saved: $filename" );
$image_size = ewww_image_optimizer_filesize( $filename );
ewwwio_debug_message( "image editor size: $image_size" );
}
return array(
'path' => $filename,
/** This filter is documented in wp-includes/class-wp-image-editor-gd.php */
'file' => wp_basename( apply_filters( 'image_make_intermediate_size', $filename ) ),
'width' => $this->size['width'],
'height' => $this->size['height'],
'mime-type' => $mime_type,
'filesize' => wp_filesize( $filename ),
);
}
/**
* Writes an image to a file or stream.
*
* @since 8.1.0
*
* @param Imagick $image An Imagick image object.
* @param string $filename The destination filename or stream URL.
* @return true|WP_Error
*/
private function write_image( $image, $filename ) {
if ( wp_is_stream( $filename ) ) {
/*
* Due to reports of issues with streams with `Imagick::writeImageFile()` and `Imagick::writeImage()`, copies the blob instead.
* Checks for exact type due to: https://www.php.net/manual/en/function.file-put-contents.php
*/
if ( file_put_contents( $filename, $image->getImageBlob() ) === false ) {
return new WP_Error(
'image_save_error',
sprintf(
/* translators: %s: PHP function name. */
__( '%s failed while writing image to stream.', 'ewww-image-optimizer' ),
'<code>file_put_contents()</code>'
),
$filename
);
} else {
return true;
}
} else {
$dirname = dirname( $filename );
if ( ! wp_mkdir_p( $dirname ) ) {
return new WP_Error(
'image_save_error',
sprintf(
/* translators: %s: Directory path. */
__( 'Unable to create directory %s. Is its parent directory writable by the server?', 'ewww-image-optimizer' ),
esc_html( $dirname )
)
);
}
try {
return $image->writeImage( $filename );
} catch ( Exception $e ) {
return new WP_Error( 'image_save_error', $e->getMessage(), $filename );
}
}
}
}