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<?php

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namespace Smush\Core;

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class Url_Utils {

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/**

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* @var Upload_Dir

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private $upload_dir;

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public function __construct() {

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$this->upload_dir = new Upload_Dir();

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}

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public function get_extension( $url ) {

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$path = wp_parse_url( $url, PHP_URL_PATH );

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if ( empty( $path ) ) {

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return false;

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}

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return strtolower( pathinfo( $path, PATHINFO_EXTENSION ) );

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}

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public function get_url_scheme( $url ) {

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$url_parts = wp_parse_url( $url );

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return empty( $url_parts['scheme'] )

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? false

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: $url_parts['scheme'];

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}

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/**

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* @param $url

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* @return string

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* @see attachment_url_to_postid()

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public function make_media_url_relative( $url ) {

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$upload_url = $this->upload_dir->get_upload_url();

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$path = $url;

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$site_url = parse_url( $upload_url );

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$image_path = parse_url( $path );

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// Force the protocols to match if needed.

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if ( isset( $image_path['scheme'] ) && ( $image_path['scheme'] !== $site_url['scheme'] ) ) {

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$path = str_replace( $image_path['scheme'], $site_url['scheme'], $path );

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}

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if ( str_starts_with( $path, $upload_url . '/' ) ) {

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$path = substr( $path, strlen( $upload_url . '/' ) );

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}

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return $path;

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}

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public function guess_dimensions_from_image_url( $url ) {

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$width_height_string = array();

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if ( preg_match( '#-(\d+)x(\d+)\.(?:jpe?g|png|gif|webp|svg)#i', $url, $width_height_string ) ) {

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$width = (int) $width_height_string[1];

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$height = (int) $width_height_string[2];

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if ( $width && $height ) {

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return array( $width, $height );

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}

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}

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return array( false, false );

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}

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}

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