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<?php |
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/** |
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* Plus WebP |
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* |
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* @package Plus WebP |
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* @subpackage PlusWebp Main function |
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/* Copyright (c) 2019- Katsushi Kawamori (email : dodesyoswift312@gmail.com) |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; version 2 of the License. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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$pluswebp = new PlusWebp(); |
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|
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class PlusWebp { |
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|
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private $upload_dir; |
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private $upload_url; |
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private $upload_path; |
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|
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/* ================================================== |
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* Construct |
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* @since 1.00 |
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*/ |
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public function __construct() { |
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|
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list($this->upload_dir, $this->upload_url, $this->upload_path) = $this->upload_dir_url_path(); |
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|
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add_filter( 'wp_generate_attachment_metadata', array( $this, 'generate_webp' ), 10, 2 ); |
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|
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} |
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|
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/* ================================================== |
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* Webp generate |
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* @param array $metadata |
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* @param int $attachment_id |
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* @return array $metadata |
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* @since 1.00 |
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*/ |
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public function generate_webp( $metadata, $attachment_id ) { |
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|
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$replace = get_option('pluswebp_replace'); |
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|
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$mime_type = get_post_mime_type($attachment_id); |
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if ( $mime_type == 'image/jpeg' || $mime_type == 'image/png' || $mime_type == 'image/bmp' || $mime_type == 'image/gif' ) { |
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$metadata_webp = $metadata; |
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$file_webp = $this->change_ext( $metadata['file'], 'webp' ); |
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$metadata_webp['file'] = $file_webp; |
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foreach ( (array)$metadata['sizes'] as $key => $value ) { |
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$file_thumb = $value['file']; |
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$file_thumb_webp = $this->change_ext( $file_thumb, 'webp' ); |
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$path = $this->upload_dir.'/'.dirname($file_webp).'/'; |
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$url = $this->upload_url.'/'.dirname($file_webp).'/'; |
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$ret = $this->create_webp( $path.$file_thumb, $mime_type, $path.$file_thumb_webp ); |
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if ( $ret ) { |
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$metadata_webp['sizes'][$key]['file'] = $file_thumb_webp; |
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$metadata_webp['sizes'][$key]['mime-type'] = 'image/webp'; |
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if ( $replace ) { |
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unlink( $path.$file_thumb ); |
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$this->change_db( $url.$file_thumb, $url.$file_thumb_webp); |
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} |
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} |
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} |
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|
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$ret = $this->create_webp( $this->upload_dir.'/'.$metadata['file'], $mime_type, $this->upload_dir.'/'.$file_webp ); |
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if ( $ret ) { |
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if ( $replace ) { |
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$up_post = array( |
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'ID' => $attachment_id, |
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'guid' => $this->upload_url.'/'.$file_webp, |
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'post_mime_type' => 'image/webp' |
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); |
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wp_update_post( $up_post ); |
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update_post_meta( $attachment_id, '_wp_attached_file', $file_webp ); |
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wp_update_attachment_metadata( $attachment_id, $metadata_webp ); |
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unlink( $this->upload_dir.'/'.$metadata['file'] ); |
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$this->change_db( $this->upload_url.'/'.$metadata['file'], $this->upload_url.'/'.$file_webp ); |
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} else { |
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$post = get_post($attachment_id); |
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$title = get_the_title($post); |
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$attachment = array( |
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'guid' => $this->upload_url.'/'.$file_webp, |
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'post_mime_type' => 'image/webp', |
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'post_title' => $title, |
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'post_content' => '', |
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'post_status' => 'inherit' |
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); |
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$attach_id = wp_insert_attachment( $attachment, $this->upload_dir.'/'.$file_webp ); |
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wp_update_attachment_metadata( $attach_id, $metadata_webp ); |
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|
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$author = get_userdata($post->post_author); |
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$userid = $author->ID; |
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$postdate = get_the_date('Y-m-d H:i:s', $attachment_id); |
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$postdategmt = get_gmt_from_date($postdate); |
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$up_post = array( |
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'ID' => $attach_id, |
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'post_author' => $userid, |
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'post_date' => $postdate, |
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'post_date_gmt' => $postdategmt, |
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'post_modified' => $postdate, |
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'post_modified_gmt' => $postdategmt |
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); |
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wp_update_post( $up_post ); |
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} |
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} |
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|
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} |
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|
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return $metadata; |
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|
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} |
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|
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/* ================================================== |
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* Webp create |
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* @param string $filename |
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* @param string $mime_type |
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* @param string $filename_webp |
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* @return bool $ret |
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* @since 1.00 |
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*/ |
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private function create_webp( $filename, $mime_type, $filename_webp ) { |
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|
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if ( !file_exists($filename) ) return FALSE; |
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if ( file_exists($filename_webp) ) return FALSE; |
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|
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$ret = FALSE; |
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switch ($mime_type) { |
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case 'image/jpeg': |
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$img = imagecreatefromjpeg($filename); |
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break; |
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case 'image/png': |
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$img = imagecreatefrompng($filename); |
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break; |
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case 'image/bmp': |
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$img = imagecreatefrombmp($filename); |
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break; |
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case 'image/gif': |
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$img = imagecreatefromgif($filename); |
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break; |
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} |
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|
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@set_time_limit(60); |
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$ret = imagewebp($img, $filename_webp); |
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imagedestroy($img); |
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|
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return $ret; |
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|
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} |
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|
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/* ================================================== |
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* Change ext |
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* @param string $before_file_name |
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* @param string $ext |
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* @return array $after_file_name |
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* @since 1.00 |
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*/ |
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private function change_ext( $before_file_name, $ext ) { |
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|
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$exts = explode('.', wp_basename($before_file_name)); |
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$file_ext = '.'.end($exts); |
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$after_file_name = rtrim($before_file_name, $file_ext).'.'.$ext; |
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|
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return $after_file_name; |
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|
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} |
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|
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/* ================================================== |
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* Change DB |
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* @param string $before_url |
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* @param string $after_url |
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* @since 1.00 |
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*/ |
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private function change_db( $before_url, $after_url ) { |
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|
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global $wpdb; |
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|
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// Replace |
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$sql = $wpdb->prepare( |
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"UPDATE `$wpdb->posts` SET post_content = replace(post_content, %s, %s)", |
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$before_url, |
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$after_url |
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); |
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$wpdb->query($sql); |
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|
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return; |
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|
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} |
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|
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/* ================================================== |
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* @param none |
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* @return array $upload_dir, $upload_url, $upload_path |
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* @since 1.00 |
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*/ |
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public function upload_dir_url_path(){ |
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|
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$wp_uploads = wp_upload_dir(); |
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|
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$relation_path_true = strpos($wp_uploads['baseurl'], '../'); |
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if ( $relation_path_true > 0 ) { |
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$relationalpath = substr($wp_uploads['baseurl'], $relation_path_true); |
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$basepath = substr($wp_uploads['baseurl'], 0, $relation_path_true); |
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$upload_url = $this->realurl($basepath, $relationalpath); |
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$upload_dir = wp_normalize_path(realpath($wp_uploads['basedir'])); |
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} else { |
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$upload_url = $wp_uploads['baseurl']; |
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$upload_dir = wp_normalize_path($wp_uploads['basedir']); |
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} |
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|
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if(is_ssl()){ |
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$upload_url = str_replace('http:', 'https:', $upload_url); |
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} |
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|
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if ( $relation_path_true > 0 ) { |
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$upload_path = $relationalpath; |
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} else { |
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$upload_path = str_replace(site_url('/'), '', $upload_url); |
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} |
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|
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$upload_dir = untrailingslashit($upload_dir); |
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$upload_url = untrailingslashit($upload_url); |
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$upload_path = untrailingslashit($upload_path); |
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|
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return array($upload_dir, $upload_url, $upload_path); |
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|
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} |
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|
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} |
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|
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?> |
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|
