­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ can_create_thumbnails = ( extension_loaded('ImageMagick') || extension_loaded('imagick') || (extension_loaded('GD') && function_exists('gd_info')) ); if ( $this->can_create_thumbnails ) { // Set default thumbnail $this->default_thumbnail = $this->get_plugin_dir_url() . "public/images/no_thumb.jpg"; // Set uploads folder $wp_upload_dir = ( function_exists('wp_get_upload_dir') ) ? wp_get_upload_dir() : wp_upload_dir(); // wp_get_upload_dir() was introduced in WP 4.5! $this->uploads_dir['basedir'] = $wp_upload_dir['basedir'] . "/" . 'wordpress-popular-posts'; $this->uploads_dir['baseurl'] = $wp_upload_dir['baseurl'] . "/" . 'wordpress-popular-posts'; if ( !is_dir($this->uploads_dir['basedir']) ) { if ( !wp_mkdir_p($this->uploads_dir['basedir']) ) { $this->uploads_dir['basedir'] = $wp_upload_dir['basedir']; $this->uploads_dir['baseurl'] = $wp_upload_dir['baseurl']; } } } } /** * Get an instance of this class. * * @since 4.0.0 * @return object|\WPP_Image */ public static function get_instance() { if ( is_null(self::$instance) ) { self::$instance = new WPP_Image(); } return self::$instance; } /** * Tells whether WPP can create thumbnails or not. * * @since 4.0.0 * @access public * @return bool */ public function can_create_thumbnails() { return $this->can_create_thumbnails; } public function get_plugin_dir() { return WP_PLUGIN_DIR . '/wordpress-popular-posts/'; } public function get_plugin_dir_url() { return plugins_url() . '/wordpress-popular-posts/'; } /** * Get WPP's uploads folder. * * @since 4.0.0 * @access public * @return array|bool */ public function get_plugin_uploads_dir() { if ( is_array($this->uploads_dir) && !empty($this->uploads_dir) ) return $this->uploads_dir; return false; } /** * Retrieves / creates the post thumbnail. * * @since 2.3.3 * @param object $post_object Post object (must contain, at least, the properties id and title) * @param string $url Image URL * @param array $size Thumbnail's width and height * @param array $crop Image cropping * @param string $source Image source * @return string */ public function get_img( $post_object = null, $url = null, $size = array(80, 80), $crop = true, $source = "featured" ) { // WPP cannot create thumbnails if ( !$this->can_create_thumbnails ) return ''; if ( ( false === $post_object instanceof stdClass || !isset($post_object->id) ) && !filter_var( $url, FILTER_VALIDATE_URL ) ) { return $this->render_image( $this->default_thumbnail, $size, 'wpp-thumbnail wpp_def_no_src wpp_' . $source, $post_object ); } // Get image by post ID (parent) if ( isset( $post_object->id ) && !$url ) { $file_path = $this->get_image_file_paths( $post_object->id, $source ); // No images found, return default thumbnail if ( !$file_path ) { return $this->render_image( $this->default_thumbnail, $size, 'wpp-thumbnail wpp_def_noPath wpp_' . $source, $post_object ); } } // Get image from URL else { // sanitize URL, just in case $image_url = esc_url( $url ); // remove querystring preg_match( '/[^\?]+\.(jpg|JPG|jpe|JPE|jpeg|JPEG|gif|GIF|png|PNG)/', $image_url, $matches ); $image_url = $matches[0]; $attachment_id = $this->get_attachment_id( $image_url ); // Image is hosted locally if ( $attachment_id ) { $file_path = get_attached_file( $attachment_id ); } // Image is hosted outside WordPress else { $external_image = $this->fetch_external_image( $post_object->id, $image_url ); if ( !$external_image ) { return $this->render_image( $this->default_thumbnail, $size, 'wpp-thumbnail wpp_def_noPath wpp_no_external', $post_object ); } $file_path = $external_image; } } $extension = pathinfo( $file_path, PATHINFO_EXTENSION ); $image_meta = array( 'filename' => $post_object->id . '-' . $source . '-' . $size[0] . 'x' . $size[1], 'extension' => $extension, 'width' => $size[0], 'height' => $size[1], 'alt' => esc_attr( wp_strip_all_tags( $post_object->title ) ), 'crop' => $crop, 'source' => $source, 'parent_id' => $post_object->id ); // there is a thumbnail already if ( is_file( trailingslashit( $this->uploads_dir['basedir'] ) . $image_meta['filename'] . '.' . $image_meta['extension'] ) ) { return $this->render_image( trailingslashit( $this->uploads_dir['baseurl'] ) . $image_meta['filename'] . '.' . $image_meta['extension'], $size, 'wpp-thumbnail wpp_cached_thumb wpp_' . $source, $post_object ); } return $this->image_resize( $file_path, $image_meta ); } // end get_img /** * Resizes image. * * @since 3.0.0 * @access private * @param object $post_object Post object * @param string $path Image path * @param array $size Image's width and height * @param string $source Image source * @return string */ private function image_resize( $path, $image_meta ) { $image = wp_get_image_editor( $path ); // valid image, create thumbnail if ( !is_wp_error($image) ) { $image->resize( $image_meta['width'], $image_meta['height'], $image_meta['crop'] ); $new_img = $image->save( trailingslashit($this->uploads_dir['basedir']) . $image_meta['filename'] . '.' . $image_meta['extension'] ); if ( is_wp_error($new_img) ) { return $this->render_image( $this->default_thumbnail, array( $image_meta['width'], $image_meta['height'] ), 'wpp-thumbnail wpp_imgeditor_error wpp_' . $image_meta['source'], null, $new_img->get_error_message() ); } return $this->render_image( trailingslashit($this->uploads_dir['baseurl']) . $new_img['file'], array( $image_meta['width'], $image_meta['height'] ), 'wpp-thumbnail wpp_imgeditor_thumb wpp_' . $image_meta['source'], null ); } // ELSE // image file path is invalid return $this->render_image( $this->default_thumbnail, array( $image_meta['width'], $image_meta['height'] ), 'wpp-thumbnail wpp_imgeditor_error wpp_' . $image_meta['source'], null, $image->get_error_message() ); } // end image_resize /** * Get image absolute path / URL. * * @since 3.0.0 * @access private * @param int $id Post ID * @param string $source Image source * @return array */ private function get_image_file_paths( $id, $source ) { $file_path = ''; // get thumbnail path from the Featured Image if ( "featured" == $source ) { if ( $thumbnail_id = get_post_thumbnail_id($id) ) { // image path return get_attached_file( $thumbnail_id ); } } // get thumbnail path from first image attachment elseif ( "first_attachment" == $source ) { $args = array( 'numberposts' => 1, 'order' => 'ASC', 'post_parent' => $id, 'post_type' => 'attachment', 'post_mime_type' => 'image' ); $post_attachments = get_children( $args ); if ( !empty($post_attachments) ) { $first_img = array_shift( $post_attachments ); return get_attached_file( $first_img->ID ); } } // get thumbnail path from post content elseif ( "first_image" == $source ) { /** @var wpdb $wpdb */ global $wpdb; if ( $content = $wpdb->get_var( "SELECT post_content FROM {$wpdb->posts} WHERE ID = {$id};" ) ) { // at least one image has been found if ( preg_match( '/]+>/i', $content, $img ) ) { // get img src attribute from the first image found preg_match( '/(src)="([^"]*)"/i', $img[0], $src_attr ); if ( isset($src_attr[2]) && !empty($src_attr[2]) ) { // image from Media Library if ( $attachment_id = $this->get_attachment_id( $src_attr[2] ) ) { $file_path = get_attached_file( $attachment_id ); // There's a file path, so return it if ( !empty($file_path) ) { return $file_path; } } // external image? else { return $this->fetch_external_image( $id, $src_attr[2] ); } } } } } return false; } // end get_image_file_paths /** * Render image tag. * * @since 3.0.0 * @access public * @param string src Image URL * @param array dimension Image's width and height * @param string class CSS class * @param object $post_object Post object (must contain, at least, the properties id and title) * @param string error Error, if the image could not be created * @return string */ public function render_image( $src, $size, $class, $post_object, $error = null ) { $img_tag = ''; if ( $error ) { $img_tag = ' '; } $img_tag .= '' . ( ($post_object instanceof stdClass && isset($post_object->title) ? esc_attr( wp_strip_all_tags($post_object->title) ) : '' ) ) . ''; return apply_filters( 'wpp_render_image', $img_tag ); } // render_image /** * Get the Attachment ID for a given image URL. * * @since 3.0.0 * @access private * @author Frankie Jarrett * @link http://frankiejarrett.com/get-an-attachment-id-by-url-in-wordpress/ * @param string $url * @return bool|int */ private function get_attachment_id( $url ) { // Split the $url into two parts with the wp-content directory as the separator. $parse_url = explode( parse_url( WP_CONTENT_URL, PHP_URL_PATH ), $url ); // Get the host of the current site and the host of the $url, ignoring www. $this_host = str_ireplace( 'www.', '', parse_url( home_url(), PHP_URL_HOST ) ); $file_host = str_ireplace( 'www.', '', parse_url( $url, PHP_URL_HOST ) ); // Return nothing if there aren't any $url parts or if the current host and $url host do not match. if ( !isset( $parse_url[1] ) || empty( $parse_url[1] ) || ( $this_host != $file_host ) ) { return false; } // Now we're going to quickly search the DB for any attachment GUID with a partial path match. // Example: /uploads/2013/05/test-image.jpg global $wpdb; if ( !$attachment = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM {$wpdb->prefix}posts WHERE guid RLIKE %s;", $parse_url[1] ) ) ) { // Maybe it's a resized image, so try to get the full one $parse_url[1] = preg_replace( '/-[0-9]{1,4}x[0-9]{1,4}\.(jpg|jpeg|png|gif|bmp)$/i', '.$1', $parse_url[1] ); $attachment = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM {$wpdb->prefix}posts WHERE guid RLIKE %s;", $parse_url[1] ) ); } // Returns null if no attachment is found. return isset( $attachment[0] ) ? $attachment[0] : NULL; } // get_attachment_id /** * Fetchs external images. * * @since 2.3.3 * @access private * @param int $id Post ID. * @param string $url Image url. * @return bool|int */ private function fetch_external_image( $id, $url ){ $full_image_path = trailingslashit( $this->uploads_dir['basedir'] ) . "{$id}_". sanitize_file_name( rawurldecode(wp_basename( $url )) ); // if the file exists already, return URL and path if ( file_exists($full_image_path) ) return $full_image_path; $accepted_status_codes = array( 200, 301, 302 ); $response = wp_remote_head( $url, array( 'timeout' => 5, 'sslverify' => false ) ); if ( !is_wp_error($response) && in_array( wp_remote_retrieve_response_code($response), $accepted_status_codes ) ) { require_once( ABSPATH . 'wp-admin/includes/file.php' ); $url = str_replace( 'https://', 'http://', $url ); $tmp = download_url( $url ); if ( !is_wp_error( $tmp ) ) { if ( function_exists('exif_imagetype') ) { $image_type = exif_imagetype( $tmp ); } else { $image_type = getimagesize( $tmp ); $image_type = ( isset($image_type[2]) ) ? $image_type[2] : NULL; } if ( in_array($image_type, array(IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG)) ) { // move file to Uploads if ( @rename($tmp, $full_image_path) ) { // borrowed from WP - set correct file permissions $stat = stat( dirname( $full_image_path ) ); $perms = $stat['mode'] & 0000644; @chmod( $full_image_path, $perms ); return $full_image_path; } } // remove temp file @unlink( $tmp ); } } return false; } // end fetch_external_image /** * Gets list of available thumbnails sizes * * @since 3.2.0 * @link http://codex.wordpress.org/Function_Reference/get_intermediate_image_sizes * @param string $size * @return array|bool */ public function get_image_sizes( $size = '' ) { global $_wp_additional_image_sizes; $sizes = array(); $get_intermediate_image_sizes = get_intermediate_image_sizes(); // Create the full array with sizes and crop info foreach( $get_intermediate_image_sizes as $_size ) { if ( in_array( $_size, array( 'thumbnail', 'medium', 'large' ) ) ) { $sizes[ $_size ]['width'] = get_option( $_size . '_size_w' ); $sizes[ $_size ]['height'] = get_option( $_size . '_size_h' ); $sizes[ $_size ]['crop'] = (bool) get_option( $_size . '_crop' ); } elseif ( isset( $_wp_additional_image_sizes[ $_size ] ) ) { $sizes[ $_size ] = array( 'width' => $_wp_additional_image_sizes[ $_size ]['width'], 'height' => $_wp_additional_image_sizes[ $_size ]['height'], 'crop' => $_wp_additional_image_sizes[ $_size ]['crop'] ); } } // Get only 1 size if found if ( $size ) { if( isset( $sizes[ $size ] ) ) { return $sizes[ $size ]; } else { return false; } } return $sizes; } /** * Sets default thumbnail image. * * @since 4.0.2 * @param string $url */ public function set_default( $url ) { $this->default_thumbnail = esc_url( $url ); } } // End WPP_Image class