<?php
/**
* Core user functions.
*
* @package One User Avatar
* @author Bangbay Siboliban
* @author Flippercode
* @author ProfilePress
* @author One Designs
* @copyright 2013-2014 Bangbay Siboliban
* @copyright 2014-2020 Flippercode
* @copyright 2020-2021 ProfilePress
* @copyright 2021 One Designs
* @version 2.3.9
*/
class WP_User_Avatar_Functions {
/**
* Constructor
* @since 1.8
* @uses add_filter()
* @uses register_activation_hook()
* @uses register_deactivation_hook()
*/
public function __construct() {
add_filter( 'get_avatar', array( $this, 'wpua_get_avatar_filter' ), 10, 6 );
add_filter( 'get_avatar_url', array( $this, 'wpua_get_avatar_url' ), 10, 3 );
// Filter to display One User Avatar at Buddypress
add_filter( 'bp_core_fetch_avatar', array( $this, 'wpua_bp_core_fetch_avatar_filter' ), 10, 5 );
// Filter to display One User Avatar by URL at Buddypress
add_filter( 'bp_core_fetch_avatar_url', array( $this, 'wpua_bp_core_fetch_avatar_url_filter' ), 10, 5 );
// Maybe replace the custom avatars functionality in the Ultimate Member plugin
add_action( 'init', array( $this, 'wpua_maybe_disable_um_avatars' ), 10, 0 );
}
function wpua_get_avatar_url( $url, $id_or_email, $args ){
global $wpua_disable_gravatar;
$user_id = null;
if ( is_object( $id_or_email ) ) {
if ( ! empty( $id_or_email->comment_author_email ) ) {
$user_id = $id_or_email->user_id;
}
} else {
if ( is_email( $id_or_email ) ) {
$user = get_user_by( 'email', $id_or_email );
if ( $user ) {
$user_id = $user->ID;
}
} else {
$user_id = $id_or_email;
}
}
// First checking custom avatar.
if ( has_wp_user_avatar( $user_id ) ) {
$url = $this->get_wp_user_avatar_src( $user_id );
} else if( $wpua_disable_gravatar ) {
$url = $this->wpua_get_default_avatar_url( $url, $id_or_email, $args );
} else {
$has_valid_url = $this->wpua_has_gravatar( $id_or_email );
if ( ! $has_valid_url ) {
$url = $this->wpua_get_default_avatar_url( $url, $id_or_email, $args );
}
}
/**
* Filter get_avatar_url filter
* @since 4.1.9
* @param string $url
* @param int|string $id_or_email
* @param array $args
*/
return apply_filters( 'wpua_get_avatar_filter_url', $url, $id_or_email );
}
function wpua_get_default_avatar_url( $url, $id_or_email, $args ){
global $avatar_default,
$mustache_admin,
$mustache_avatar,
$mustache_medium,
$mustache_original,
$mustache_thumbnail,
$post,
$wpua_avatar_default,
$wpua_disable_gravatar,
$wpua_functions;
$default_image_details = array();
$size = ! empty( $args['size'] ) ? $args['size'] : 96;
// Show custom Default Avatar
if ( ! empty( $wpua_avatar_default ) && $wpua_functions->wpua_attachment_is_image( $wpua_avatar_default ) ) {
// Get image
$wpua_avatar_default_image = $wpua_functions->wpua_get_attachment_image_src(
$wpua_avatar_default,
array( $size, $size )
);
// Image src
$url = $wpua_avatar_default_image[0];
} else {
// Get mustache image based on numeric size comparison
if ( $size > get_option( 'medium_size_w' ) ) {
$url = $mustache_original;
} elseif ( $size <= get_option( 'medium_size_w' ) && $size > get_option( 'thumbnail_size_w' ) ) {
$url = $mustache_medium;
} elseif ( $size <= get_option( 'thumbnail_size_w' ) && 96 < $size ) {
$url = $mustache_thumbnail;
} elseif ( 96 >= $size && 32 < $size ) {
$url = $mustache_avatar;
} elseif ( 32 >= $size ) {
$url = $mustache_admin;
}
}
return $url;
}
/**
* Returns One User Avatar or Gravatar-hosted image if user doesn't have Buddypress-uploaded image
* @param string $avatar
* @param array $params
* @param int $item_id
* @param string $avatar_dir
* @param string $css_id
* @param int $html_width
* @param int $html_height
* @param string $avatar_folder_url
* @param string $avatar_folder_dir
* @uses object $wpua_functions
* @uses wpua_get_avatar_filter()
*/
public function wpua_bp_core_fetch_avatar_filter( $gravatar, $params, $item_id = '', $avatar_dir = '', $css_id = '', $html_width = '', $html_height =' ', $avatar_folder_url = '', $avatar_folder_dir = '') {
global $wpua_functions;
if ( -1 < strpos( $gravatar, 'gravatar.com' , 0 ) ) {
$avatar = $wpua_functions->wpua_get_avatar_filter(
$gravatar,
( 'user' == $params['object'] ) ? $params['item_id'] : '',
( 'user' == $params['object'] ) ? ( ( 'thumb' == $params['type'] ) ? 50 :150 ) : 50,
'',
''
);
return $avatar;
}
return $gravatar;
}
/**
* Returns WP user default local avatar URL or Gravatar-hosted image URL if user doesn't have Buddypress-uploaded image
* @param string $avatar
* @param array $params
* @uses object $wpua_functions
* @uses wpua_get_avatar_filter()
*/
public function wpua_bp_core_fetch_avatar_url_filter( $gravatar, $params ) {
global $wpua_functions;
if ( -1 < strpos( $gravatar, 'gravatar.com', 0 ) ) {
$avatar = $this->wpua_get_avatar_url( $gravatar, $params['email'], $params );
return $avatar;
}
return $gravatar;
}
/**
* Returns true if user has Gravatar-hosted image
* @since 1.4
* @param int|string $id_or_email
* @param bool $has_gravatar
* @param int|string $user
* @param string $email
* @uses get_user_by()
* @uses is_wp_error()
* @uses wp_cache_get()
* @uses wp_cache_set()
* @uses wp_remote_head()
* @return bool $has_gravatar
*/
public function wpua_has_gravatar( $id_or_email = '', $has_gravatar = 0, $user = '', $email = '') {
global $wpua_hash_gravatar,
$avatar_default,
$mustache_admin,
$mustache_avatar,
$mustache_medium,
$mustache_original,
$mustache_thumbnail,
$post,
$wpua_avatar_default,
$wpua_disable_gravatar,
$wpua_functions;
// User has WPUA
// Decide if check gravatar required or not.
if ( 'wp_user_avatar' != trim( $avatar_default ) ) {
return true;
}
if ( ! is_object( $id_or_email ) && ! empty( $id_or_email ) ) {
// Find user by ID or e-mail address
$user = is_numeric( $id_or_email ) ? get_user_by( 'id', $id_or_email ) : get_user_by( 'email', $id_or_email );
// Get registered user e-mail address
$email = ! empty( $user ) ? $user->user_email : '';
}
if ( '' == $email ) {
if ( ! is_numeric( $id_or_email ) && ! is_object( $id_or_email ) ) {
$email = $id_or_email;
} elseif ( ! is_numeric( $id_or_email ) && is_object( $id_or_email ) ) {
$email = $id_or_email->comment_author_email;
}
}
if ( '' != $email ) {
$hash = md5( strtolower( trim( $email ) ) );
//check if gravatar exists for hashtag using options
if ( is_array( $wpua_hash_gravatar ) ) {
$date = date( 'm-d-Y' );
if (
array_key_exists( $hash, $wpua_hash_gravatar ) &&
is_array( $wpua_hash_gravatar[$hash] ) &&
array_key_exists( $date, $wpua_hash_gravatar[ $hash ] )
) {
return (bool) $wpua_hash_gravatar[ $hash ][ $date ];
}
}
if (
isset( $_SERVER['HTTPS'] ) &&
( 'on' == $_SERVER['HTTPS'] || 1 == $_SERVER['HTTPS'] ) ||
isset( $_SERVER['HTTP_X_FORWARDED_PROTO'] ) &&
'https' == $_SERVER['HTTP_X_FORWARDED_PROTO']
) {
$http = 'https';
} else {
$http = 'http';
}
$gravatar = $http . '://www.gravatar.com/avatar/' . $hash . '?d=404';
$data = wp_cache_get( $hash );
if ( false === $data ) {
$response = wp_remote_head( $gravatar );
$data = is_wp_error( $response ) ? 'not200' : $response['response']['code'];
wp_cache_set( $hash, $data, $group = '', $expire = 60 * 5 );
$has_gravatar = ( '200' == $data ) ? true : false;
if ( false == $wpua_hash_gravatar ) {
$date = date( 'm-d-Y' );
$wpua_hash_gravatar = [];
$wpua_hash_gravatar[ $hash ][ $date ] = (bool) $has_gravatar;
add_option( 'wpua_hash_gravatar', serialize( $wpua_hash_gravatar ), '', false );
} else {
if ( is_array( $wpua_hash_gravatar ) && ! empty( $wpua_hash_gravatar ) ) {
$date = date( 'm-d-Y' );
if ( array_key_exists( $hash, $wpua_hash_gravatar ) ){
unset( $wpua_hash_gravatar[ $hash ] );
$wpua_hash_gravatar[ $hash ][ $date ] = (bool) $has_gravatar;
update_option( 'wpua_hash_gravatar', serialize( $wpua_hash_gravatar ), false );
}
else {
$wpua_hash_gravatar[ $hash ][ $date ] = (bool) $has_gravatar;
update_option( 'wpua_hash_gravatar', serialize( $wpua_hash_gravatar ), false );
}
}
}
}
$has_gravatar = ( '200' == $data ) ? true : false;
} else {
$has_gravatar = false;
}
// Check if Gravatar image returns 200 (OK) or 404 (Not Found)
return (bool) $has_gravatar;
}
/**
* Check if local image
* @since 1.9.2
* @param int $attachment_id
* @uses apply_filters()
* @uses wp_attachment_is_image()
* @return bool
*/
public function wpua_attachment_is_image( $attachment_id ) {
$is_image = wp_attachment_is_image( $attachment_id );
/**
* Filter local image check
* @since 1.9.2
* @param bool $is_image
* @param int $attachment_id
*/
$is_image = apply_filters( 'wpua_attachment_is_image', $is_image, $attachment_id );
return (bool) $is_image;
}
/**
* Get local image tag
* @since 1.9.2
* @param int $attachment_id
* @param int|string $size
* @param bool $icon
* @param string $attr
* @uses apply_filters()
* @uses wp_get_attachment_image()
* @return string
*/
public function wpua_get_attachment_image( $attachment_id, $size = 'thumbnail', $icon = 0, $attr = '' ) {
$image = wp_get_attachment_image( $attachment_id, $size, $icon, $attr );
/**
* Filter local image tag
* @since 1.9.2
* @param string $image
* @param int $attachment_id
* @param int|string $size
* @param bool $icon
* @param string $attr
*/
return apply_filters( 'wpua_get_attachment_image', $image, $attachment_id, $size, $icon, $attr );
}
/**
* Get local image src
* @since 1.9.2
* @param int $attachment_id
* @param int|string $size
* @param bool $icon
* @uses apply_filters()
* @uses wp_get_attachment_image_src()
* @return array
*/
public function wpua_get_attachment_image_src( $attachment_id, $size = 'thumbnail', $icon = 0 ) {
$image_src_array = wp_get_attachment_image_src( $attachment_id, $size, $icon );
/**
* Filter local image src
* @since 1.9.2
* @param array $image_src_array
* @param int $attachment_id
* @param int|string $size
* @param bool $icon
*/
return apply_filters( 'wpua_get_attachment_image_src', $image_src_array, $attachment_id, $size, $icon );
}
/**
* Returns true if user has wp_user_avatar
* @since 1.1
* @param int|string $id_or_email
* @param bool $has_wpua
* @param object $user
* @param int $user_id
* @uses int $blog_id
* @uses object $wpdb
* @uses int $wpua_avatar_default
* @uses object $wpua_functions
* @uses get_user_by()
* @uses get_user_meta()
* @uses get_blog_prefix()
* @uses wpua_attachment_is_image()
* @return bool
*/
public function has_wp_user_avatar($id_or_email = '', $has_wpua = 0, $user = '', $user_id = '') {
global $blog_id, $wpdb, $wpua_avatar_default, $wpua_functions, $avatar_default;
if ( ! is_object ( $id_or_email ) && ! empty( $id_or_email ) ) {
// Find user by ID or e-mail address
$user = is_numeric( $id_or_email ) ? get_user_by( 'id', $id_or_email ) : get_user_by( 'email', $id_or_email );
// Get registered user ID
$user_id = ! empty( $user ) ? $user->ID : '';
}
$wpua = get_user_meta( $user_id, $wpdb->get_blog_prefix( $blog_id ) . 'user_avatar', true );
// Check if avatar is same as default avatar or on excluded list
$has_wpua = ! empty( $wpua ) && ( 'wp_user_avatar' != $avatar_default || $wpua != $wpua_avatar_default ) && $wpua_functions->wpua_attachment_is_image( $wpua ) ? true : false;
return (bool) $has_wpua;
}
/**
* Retrive default image url set by admin.
*/
public function wpua_default_image( $size ) {
global $avatar_default,
$mustache_admin,
$mustache_avatar,
$mustache_medium,
$mustache_original,
$mustache_thumbnail,
$post,
$wpua_avatar_default,
$wpua_disable_gravatar,
$wpua_functions;
$default_image_details = array();
// Show custom Default Avatar
if ( !empty( $wpua_avatar_default ) && $wpua_functions->wpua_attachment_is_image( $wpua_avatar_default ) ) {
// Get image
$wpua_avatar_default_image = $wpua_functions->wpua_get_attachment_image_src(
$wpua_avatar_default,
array( $size, $size )
);
// Image src
$default = $wpua_avatar_default_image[0];
// Add dimensions if numeric size
$default_image_details['dimensions'] = sprintf(
' width="%s" height="%s"',
esc_attr( $wpua_avatar_default_image[1] ),
esc_attr( $wpua_avatar_default_image[2] )
);
} else {
// Get mustache image based on numeric size comparison
if ( $size > get_option( 'medium_size_w' ) ) {
$default = $mustache_original;
} elseif( $size <= get_option( 'medium_size_w' ) && $size > get_option( 'thumbnail_size_w' ) ) {
$default = $mustache_medium;
} elseif( $size <= get_option( 'thumbnail_size_w' ) && 96 < $size ) {
$default = $mustache_thumbnail;
} elseif( 96 >= $size && 32 < $size ) {
$default = $mustache_avatar;
} elseif( 32 >= $size ) {
$default = $mustache_admin;
}
// Add dimensions if numeric size
$default_image_details['dimensions'] = sprintf( ' width="%1$s" height="%1$s"', esc_attr( $size ) );
}
// Construct the img tag
$default_image_details['size'] = $size;
$default_image_details['src'] = $default;
return $default_image_details;
}
/**
* Replace get_avatar only in get_wp_user_avatar
*
* @param string $avatar
* @param int|string $id_or_email
* @param int|string $size
* @param string $default
* @param string $alt
* @param array $args
*
* @return string $avatar
* @since 1.4
* @uses string $avatar_default
* @uses string $mustache_admin
* @uses string $mustache_avatar
* @uses string $mustache_medium
* @uses string $mustache_original
* @uses string $mustache_thumbnail
* @uses object $post
* @uses int $wpua_avatar_default
* @uses bool $wpua_disable_gravatar
* @uses object $wpua_functions
* @uses apply_filters()
* @uses get_wp_user_avatar()
* @uses has_wp_user_avatar()
* @uses wpua_has_gravatar()
* @uses wpua_attachment_is_image()
* @uses wpua_get_attachment_image_src()
* @uses get_option()
* @return string $avatar
*/
public function wpua_get_avatar_filter( $avatar, $id_or_email = '', $size = '', $default = '', $alt = '', $args = null ) {
global $avatar_default,
$mustache_admin,
$mustache_avatar,
$mustache_medium,
$mustache_original,
$mustache_thumbnail,
$post,
$wpua_avatar_default,
$wpua_disable_gravatar,
$wpua_functions;
// User has WPUA
if ( '' == $alt ) {
$alt = apply_filters( 'wpua_default_alt_tag', esc_html__( 'Avatar', 'one-user-avatar' ) );
}
$alt = esc_attr($alt);
$size = esc_attr($size);
$class = [];
if ( isset( $args['class'] ) ) {
if ( is_array( $args['class'] ) ) {
$class = array_merge( $class, $args['class'] );
} else {
$class[] = $args['class'];
}
}
$avatar = str_replace( 'gravatar_default', '', $avatar );
if ( is_object( $id_or_email ) ) {
if ( ! empty( $id_or_email->comment_author_email ) ) {
$avatar = get_wp_user_avatar( $id_or_email, $size, $default, $alt, $class );
} else {
$avatar = get_wp_user_avatar( 'unknown@gravatar.com', $size, $default, $alt, $class );
}
} else {
if ( has_wp_user_avatar( $id_or_email ) ) {
$avatar = get_wp_user_avatar( $id_or_email, $size, $default, $alt, $class );
// User has Gravatar and Gravatar is not disabled
} elseif( 1 != (bool) $wpua_disable_gravatar && $wpua_functions->wpua_has_gravatar( $id_or_email ) ) {
// find our src
if ( ! empty( $avatar ) ) {
preg_match_all( '/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $avatar, $matches, PREG_SET_ORDER );
$wpua_avatar_image_src = ! empty( $matches ) ? $matches[0][1] : '';
$default_image_details = $this->wpua_default_image( $size );
$wpua_default_avatar_image_src = $default_image_details['src'];
$wpua_final_avatar_image_src = str_replace(
'd=wp_user_avatar',
'd=' . urlencode( $wpua_default_avatar_image_src ),
$wpua_avatar_image_src
);
}
$class_string = ! empty( $class ) ? ' ' . esc_attr( implode( ' ', $class ) ) : '';
$avatar = sprintf(
'<img src="%1$s"%2$s alt="%3$s" class="avatar avatar-%4$s wp-user-avatar wp-user-avatar-%4$s photo avatar-default" />',
esc_url( $wpua_final_avatar_image_src ),
$default_image_details['dimensions'],
esc_attr( $alt ),
esc_attr( $size )
);
// User doesn't have WPUA or Gravatar and Default Avatar is wp_user_avatar, show custom Default Avatar
} elseif ( 'wp_user_avatar' == $avatar_default ) {
$default_image_details = $this->wpua_default_image( $size );
$class_string = ! empty( $class ) ? ' ' . esc_attr( implode( ' ', $class ) ) : '';
$avatar = sprintf(
'<img src="%1$s"%2$s alt="%3$s" class="avatar avatar-%4$s wp-user-avatar wp-user-avatar-%4$s photo avatar-default" />',
esc_url( $default_image_details['src'] ),
$default_image_details['dimensions'],
esc_attr( $alt ),
esc_attr( $size )
);
return $avatar;
}
}
/**
* Filter get_avatar filter
* @since 1.9
* @param string $avatar
* @param int|string $id_or_email
* @param int|string $size
* @param string $default
* @param string $alt
*/
return apply_filters( 'wpua_get_avatar_filter', $avatar, $id_or_email, $size, $default, $alt );
}
/**
* Get original avatar, for when user removes wp_user_avatar
* @since 1.4
* @param int|string $id_or_email
* @param int|string $size
* @param string $default
* @param string $alt
* @uses string $avatar_default
* @uses string $mustache_avatar
* @uses int $wpua_avatar_default
* @uses bool $wpua_disable_gravatar
* @uses object $wpua_functions
* @uses wpua_attachment_is_image()
* @uses wpua_get_attachment_image_src()
* @uses wpua_has_gravatar()
* @uses add_filter()
* @uses apply_filters()
* @uses get_avatar()
* @uses remove_filter()
* @return string $default
*/
public function wpua_get_avatar_original( $id_or_email = '', $size = '', $default = '', $alt = '' ) {
global $avatar_default,
$mustache_avatar,
$wpua_avatar_default,
$wpua_disable_gravatar,
$wpua_functions;
// Remove get_avatar filter
remove_filter( 'get_avatar', array( $this, 'wpua_get_avatar_filter' ) );
remove_filter( 'get_avatar_url', array( $this, 'wpua_get_avatar_url' ) );
if ( 1 != (bool) $wpua_disable_gravatar ) {
// User doesn't have Gravatar and Default Avatar is wp_user_avatar, show custom Default Avatar
if ( ! $wpua_functions->wpua_has_gravatar( $id_or_email ) && 'wp_user_avatar' == $avatar_default) {
// Show custom Default Avatar
if( ! empty( $wpua_avatar_default ) && $wpua_functions->wpua_attachment_is_image( $wpua_avatar_default ) ) {
$size_numeric_w_x_h = array( get_option( $size . '_size_w' ), get_option( $size . '_size_h' ) );
$wpua_avatar_default_image = $wpua_functions->wpua_get_attachment_image_src(
$wpua_avatar_default,
$size_numeric_w_x_h
);
$default = $wpua_avatar_default_image[0];
} else {
$default = $mustache_avatar;
}
} else {
// Get image from Gravatar, whether it's the user's image or default image
$default = get_avatar_url( $id_or_email, array( 'size' => $size ) );
}
} else {
if ( ! empty( $wpua_avatar_default ) && $wpua_functions->wpua_attachment_is_image( $wpua_avatar_default ) ) {
$size_numeric_w_x_h = array( get_option( $size . '_size_w' ), get_option( $size . '_size_h' ) );
$wpua_avatar_default_image = $wpua_functions->wpua_get_attachment_image_src(
$wpua_avatar_default,
$size_numeric_w_x_h
);
$default = $wpua_avatar_default_image[0];
} else {
$default = $mustache_avatar;
}
}
// Enable get_avatar filter
add_filter( 'get_avatar', array( $this, 'wpua_get_avatar_filter' ), 10, 6 );
add_filter( 'get_avatar_url', array( $this, 'wpua_get_avatar_url' ), 10, 3 );
/**
* Filter original avatar src
* @since 1.9
* @param string $default
*/
return apply_filters( 'wpua_get_avatar_original', $default );
}
/**
* Find WPUA, show get_avatar if empty
*
* @param int|string $id_or_email
* @param int|string $size
* @param string $align
* @param string $alt
* @param array $class
*
* @return string $avatar
* @since 1.0
* @uses array $_wp_additional_image_sizes
* @uses array $all_sizes
* @uses string $avatar_default
* @uses int $blog_id
* @uses object $post
* @uses object $wpdb
* @uses int $wpua_avatar_default
* @uses object $wpua_functions
* @uses apply_filters()
* @uses get_the_author_meta()
* @uses get_blog_prefix()
* @uses get_user_by()
* @uses get_query_var()
* @uses is_author()
* @uses wpua_attachment_is_image()
* @uses wpua_get_attachment_image_src()
* @uses get_option()
* @uses get_avatar()
* @return string $avatar
*/
public function get_wp_user_avatar( $id_or_email = '', $size = '96', $align = '', $alt = '', $class = [] ) {
global $all_sizes,
$avatar_default,
$blog_id,
$post,
$wpdb,
$wpua_avatar_default,
$wpua_functions,
$_wp_additional_image_sizes;
$email = 'unknown@gravatar.com';
// Checks if comment
if ( '' == $alt ) {
$alt = apply_filters( 'wpua_default_alt_tag', esc_html__( 'Avatar', 'one-user-avatar' ) );
}
if ( is_object( $id_or_email ) ) {
// Checks if comment author is registered user by user ID
if ( 0 != $id_or_email->user_id ) {
$email = $id_or_email->user_id;
// Checks that comment author isn't anonymous
} elseif ( ! empty( $id_or_email->comment_author_email ) ) {
// Checks if comment author is registered user by e-mail address
$user = get_user_by( 'email', $id_or_email->comment_author_email );
// Get registered user info from profile, otherwise e-mail address should be value
$email = ! empty( $user ) ? $user->ID : $id_or_email->comment_author_email;
}
$alt = $id_or_email->comment_author;
} else {
if ( ! empty( $id_or_email ) ) {
// Find user by ID or e-mail address
$user = is_numeric( $id_or_email ) ? get_user_by( 'id', $id_or_email ) : get_user_by( 'email', $id_or_email );
} else {
// Find author's name if id_or_email is empty
$author_name = get_query_var( 'author_name' );
if ( is_author() ) {
// On author page, get user by page slug
$user = get_user_by( 'slug', $author_name );
} else {
// On post, get user by author meta
$user_id = get_the_author_meta( 'ID' );
$user = get_user_by( 'id', $user_id );
}
}
// Set user's ID and name
if ( ! empty ( $user ) ) {
$email = $user->ID;
$alt = $user->display_name;
}
}
$alt = esc_attr( $alt );
$size = esc_attr( $size );
$class = esc_attr( implode( ' ', $class ) );
// Checks if user has WPUA
$wpua_meta = get_the_author_meta( $wpdb->get_blog_prefix( $blog_id ) . 'user_avatar', $email );
// Add alignment class
$alignclass = ! empty( $align ) && ( 'left' == $align || 'right' == $align || 'center' == $align ) ? ' align' . $align : ' alignnone';
$class_string = ! empty( $class ) ? ' ' . $class : '';
// User has WPUA, check if on excluded list and bypass get_avatar
if ( ! empty( $wpua_meta ) && $wpua_functions->wpua_attachment_is_image( $wpua_meta ) ) {
// Numeric size use size array
$get_size = is_numeric( $size ) ? array( $size, $size ) : $size;
// Get image src
$wpua_image = $wpua_functions->wpua_get_attachment_image_src( $wpua_meta, $get_size );
// Add dimensions to img only if numeric size was specified
$dimensions = is_numeric( $size ) ? sprintf(
' width="%s" height="%s"',
esc_attr( $wpua_image[1] ),
esc_attr( $wpua_image[2] )
) : '';
// Construct the img tag
$avatar = sprintf(
'<img src="%1$s"%2$s alt="%3$s" class="avatar avatar-%4$s wp-user-avatar wp-user-avatar-%4$s%5$s photo%6$s" />',
esc_url( $wpua_image[0] ),
$dimensions,
esc_attr( $alt ),
esc_attr( $size ),
esc_attr( $alignclass ),
esc_attr( $class_string )
);
} else {
// Check for custom image sizes
if ( in_array( $size, $all_sizes ) ) {
if ( in_array( $size, array( 'original', 'large', 'medium', 'thumbnail' ) ) ) {
$get_size = ( 'original' == $size ) ? get_option( 'large_size_w' ) : get_option( $size . '_size_w' );
} else {
$get_size = $_wp_additional_image_sizes[ $size ]['width'];
}
} else {
// Numeric sizes leave as-is
$get_size = $size;
}
// User with no WPUA uses get_avatar
$avatar = get_avatar( $email, $get_size, $default = '', $alt = '', [ 'class' => $class ] );
// Remove width and height for non-numeric sizes
if ( in_array( $size, array( 'original', 'large', 'medium', 'thumbnail' ) ) ) {
$avatar = preg_replace( '/(width|height)=\"\d*\"\s/', '', $avatar );
$avatar = preg_replace( "/(width|height)=\'\d*\'\s/", '', $avatar );
}
$replace = array(
'wp-user-avatar ',
'wp-user-avatar-' . $get_size . ' ',
'wp-user-avatar-' . $size . ' ',
'avatar-'.$get_size,
' photo'
);
$replacements = array(
'',
'',
'',
'avatar-' . $size,
'wp-user-avatar wp-user-avatar-' . esc_attr( $size ) . esc_attr( $alignclass ) . ' photo' . esc_attr( $class_string )
);
$avatar = str_replace( $replace, $replacements, $avatar );
}
/**
* Filter get_wp_user_avatar
* @since 1.9
* @param string $avatar
* @param int|string $id_or_email
* @param int|string $size
* @param string $align
* @param string $alt
*/
return apply_filters( 'get_wp_user_avatar', $avatar, $id_or_email, $size, $align, $alt );
}
/**
* Return just the image src
* @since 1.1
* @param int|string $id_or_email
* @param int|string $size
* @param string $align
* @uses get_wp_user_avatar()
* @return string
*/
public function get_wp_user_avatar_src( $id_or_email = '', $size = '', $align = '' ) {
$wpua_image_src = '';
// Gets the avatar img tag
$wpua_image = get_wp_user_avatar( $id_or_email, $size, $align );
// Takes the img tag, extracts the src
if ( ! empty( $wpua_image ) ) {
preg_match_all( '/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $wpua_image, $matches, PREG_SET_ORDER );
$wpua_image_src = ! empty ( $matches ) ? $matches[0][1] : '';
}
return $wpua_image_src;
}
/**
* Maybe replace the custom avatars functionality in the Ultimate Member plugin
* @since 1.1
* @param int|string $id_or_email
* @param int|string $size
* @param string $align
* @uses get_wp_user_avatar()
* @return string
*/
public function wpua_maybe_disable_um_avatars() {
global $wpua_disable_um_avatars;
if ( ! function_exists( 'um_get_avatar' ) ) {
return;
}
if ( ! $wpua_disable_um_avatars ) {
return;
}
$priority = has_filter( 'get_avatar', 'um_get_avatar' );
if ( false === $priority ) {
return;
}
remove_filter( 'get_avatar', 'um_get_avatar', $priority );
}
}
/**
* Initialize
* @since 1.9.2
*/
function wpua_functions_init() {
global $wpua_functions;
if ( ! isset( $wpua_functions ) ) {
$wpua_functions = new WP_User_Avatar_Functions();
}
return $wpua_functions;
}
add_action( 'plugins_loaded', 'wpua_functions_init' );