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<?php |
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/* |
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* Plugin Name: Drop in Photon noresize mode |
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* Plugin URI: https://jetpack.com/support/site-accelerator/ |
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* Description: Enables the noresize mode for Photon, allowing to avoid intermediate size files generation. |
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* Author: Automattic |
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* Version: 0.1-alpha |
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* Author URI: https://jetpack.com |
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* License: GPL2+ |
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* Text Domain: jetpack-dropin |
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* |
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* @package jetpack-11287 |
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* |
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* This is a drop-in testing package for https://github.com/Automattic/jetpack/pull/11287 |
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*/ |
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function jetpack_enable_noresize_mode() { |
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// The main objective of noresize mode is to disable additional resized image versions creation. |
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// This filter handles removal of additional sizes. |
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add_filter( 'intermediate_image_sizes_advanced', 'wpcom_intermediate_sizes' ); |
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// This allows to assign the Photon domain to images that normally use the home URL as base. |
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add_filter( 'jetpack_photon_domain', 'jetpack_filter_photon_norezise_mode_domain', 10, 2 ); |
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add_filter( 'the_content', 'jetpack_filter_content_add', 0 ); |
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// Jetpack hooks in at six nines (999999) so this filter does at seven. |
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add_filter( 'the_content', 'jetpack_filter_content_remove', 9999999 ); |
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// Regular Photon operation mode filter doesn't run when is_admin(), so we need an additional filter. |
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// This is temporary until Jetpack allows more easily running these filters for is_admin(). |
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if ( is_admin() ) { |
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$photon = Jetpack_Photon::instance(); |
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add_filter( 'image_downsize', array( $photon, 'filter_image_downsize' ), 5, 3 ); |
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add_filter( 'jetpack_photon_admin_allow_image_downsize', 'jetpack_filter_photon_noresize_allow_downsize', 10, 2 ); |
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} |
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} |
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/** |
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* This is our catch-all to strip dimensions from intermediate images in content. |
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* Since this primarily only impacts post_content we do a little dance to add the filter early |
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* to `the_content` and then remove it later on in the same hook. |
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* |
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* @param String $content the post content. |
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* @return String the post content unchanged. |
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*/ |
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function jetpack_filter_content_add( $content ) { |
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add_filter( 'jetpack_photon_pre_image_url', array( __CLASS__, 'strip_image_dimensions_maybe' ) ); |
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return $content; |
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} |
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/** |
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* Removing the content filter that was set previously. |
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* |
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* @param String $content the post content. |
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* @return String the post content unchanged. |
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*/ |
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function jetpack_filter_content_remove( $content ) { |
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remove_filter( 'jetpack_photon_pre_image_url', array( __CLASS__, 'strip_image_dimensions_maybe' ) ); |
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return $content; |
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} |
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/** |
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* Short circuits the Photon filter to enable Photon processing for any URL. |
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* |
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* @param String $photon_url a proposed Photon URL for the media file. |
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* @param String $image_url the original media URL. |
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* @return String an URL to be used for the media file. |
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*/ |
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function jetpack_filter_photon_norezise_mode_domain( $photon_url, $image_url ) { |
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return $photon_url; |
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} |
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/** |
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* Allows any image that gets passed to Photon to be resized via Photon. |
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* |
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* @param Boolean $allow whether to allow the image to get resized with Photon. |
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* @param Array $params an array containing image data, attachment ID and size variant. |
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* @return Boolean |
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*/ |
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function jetpack_filter_photon_noresize_allow_downsize( $allow, $params ) { |
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return true; |
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} |
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/** |
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* Disables intermediate sizes to disallow resizing. |
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* |
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* @param Array $sizes an array containing image sizes. |
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* @return Boolean |
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*/ |
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function wpcom_intermediate_sizes( $sizes ) { |
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return array(); |
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} |
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add_action( 'plugins_loaded', 'jetpack_enable_noresize_mode' ); |
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Automattic /
jetpack
