kollapsminoriteten/wp-content/plugins/simple-user-avatar/public/class-sua-public.php

<?php
if ( !class_exists('SimpleUserAvatar_Public') ) {

  /**
   * PHP class SimpleUserAvatar_Public
   *
   * @since 2.8
   */
  class SimpleUserAvatar_Public {

    public function __construct() {

      // Override WordPress function get_avatar();
      add_filter( 'get_avatar', [ $this, 'get_avatar_filter' ], 5, 5 );

    }


    public static function init() {

      new self;

    }


    /**
     * Override of the original WordPress function get_avatar();
     *
     * @since  1.0
     * @return string
     */
    public function get_avatar_filter( $avatar, $id_or_email, $size, $default, $alt ) {

      // Get user ID, if is numeric
      if ( is_numeric($id_or_email) ) {

        $user_id = (int)$id_or_email;

      // If is string, maybe the user email
      } elseif ( is_string($id_or_email) ) {

        // Find user by email
        $user = get_user_by( 'email', $id_or_email );

        // If user doesn't exists or this is not an ID
        if ( !isset($user->ID) || !is_numeric($user->ID) ) {
          return $avatar;
        }

        $user_id = (int)$user->ID;

      // If is an object
      } elseif ( is_object($id_or_email) ) {
      
        // If is an ID
        if ( isset($id_or_email->ID) && is_numeric($id_or_email->ID) ) {
          $user_id = (int)$id_or_email->ID;
        // If this is an Comment Object
        } elseif ( isset($id_or_email->comment_author_email) ) {
          $user = get_user_by( 'email', $id_or_email->comment_author_email );

          // If user doesn't exists or this is not an ID
          if ( !isset($user->ID) || !is_numeric($user->ID) ) {
            return $avatar;
          }

          $user_id = (int)$user->ID;
        } else {
          return $avatar;
        }
      }

      // Get attachment ID from user meta
      $attachment_id = get_user_meta( $user_id, SUA_USER_META_KEY, true );
      if ( empty($attachment_id) || !is_numeric($attachment_id) ) {
        return $avatar;
      }

      // Get attachment image src
      $attachment_src = wp_get_attachment_image_src( $attachment_id, 'medium' );

      // Override WordPress src
      if ( $attachment_src !== false ) {
        $avatar = preg_replace( '/src=("|\').*?("|\')/', "src='{$attachment_src[0]}'", $avatar );
      }

      // Get attachment image srcset
      $attachment_srcset = wp_get_attachment_image_srcset( $attachment_id );

      // Override WordPress srcset
      if( $attachment_srcset !== false ) {
        $avatar = preg_replace( '/srcset=("|\').*?("|\')/', "srcset='{$attachment_srcset}'", $avatar );
      }

      return $avatar;

    }

  }

  add_action( 'plugins_loaded', [ 'SimpleUserAvatar_Public', 'init' ] );

}