index.php

<?php

define( 'PHOTON__ALLOW_QUERY_STRINGS', 1 );

require dirname( __FILE__ ) . '/plugin.php';
if ( file_exists( dirname( __FILE__ ) . '/../config.php' ) )
	require dirname( __FILE__ ) . '/../config.php';
else if ( file_exists( dirname( __FILE__ ) . '/config.php' ) )
	require dirname( __FILE__ ) . '/config.php';

// Explicit Configuration
$allowed_functions = apply_filters( 'allowed_functions', array(
//	'q'           => RESERVED
//	'zoom'        => global resolution multiplier (argument filter)
//	'quality'     => sets the quality of JPEG images during processing
//	'strip        => strips JPEG images of exif, icc or all "extra" data (params: info,color,all)
	'h'           => 'set_height',      // done
	'w'           => 'set_width',       // done
	'crop'        => 'crop',            // done
	'resize'      => 'resize_and_crop', // done
	'fit'         => 'fit_in_box',      // done
	'lb'          => 'letterbox',       // done
	'ulb'         => 'unletterbox',     // compat
	'filter'      => 'filter',          // compat
	'brightness'  => 'brightness',      // compat
	'contrast'    => 'contrast',        // compat
	'colorize'    => 'colorize',        // compat
	'smooth'      => 'smooth',          // compat
) );

unset( $allowed_functions['q'] );

$allowed_types = apply_filters( 'allowed_types', array(
	'gif',
	'jpg',
	'jpeg',
	'png',
) );

$disallowed_file_headers = apply_filters( 'disallowed_file_headers', array(
	'8BPS',
) );

// Expects a trailing slash
$tmpdir = apply_filters( 'tmpdir', '/tmp/' );
$remote_image_max_size = apply_filters( 'remote_image_max_size', 55 * 1024 * 1024 );

/* Array of domains exceptions
 * Keys are domain name
 * Values are bitmasks with the following options:
 * PHOTON__ALLOW_QUERY_STRINGS: Append the string found in the 'q' query string parameter as the query string of the remote URL
 */
$origin_domain_exceptions = apply_filters( 'origin_domain_exceptions', array() );

define( 'JPG_MAX_QUALITY', 89 );
define( 'PNG_MAX_QUALITY', 80 );

// The 'w' and 'h' parameter are processed distinctly
define( 'ALLOW_DIMS_CHAINING', true );

// Strip all meta data from WebP images by default
define( 'CWEBP_DEFAULT_META_STRIP', 'all' );

// You can override this by defining it in config.php
if ( ! defined( 'UPSCALE_MAX_PIXELS' ) )
	define( 'UPSCALE_MAX_PIXELS', 2000 );

// Allow smaller upscales for GIFs, compared to the other image types
if ( ! defined( 'UPSCALE_MAX_PIXELS_GIF' ) )
	define( 'UPSCALE_MAX_PIXELS_GIF', 1000 );