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avatar-manager.php
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<?php
/**
* @package Avatar_Manager
*/
/*
Plugin Name: Avatar Manager
Plugin URI: http://wordpress.org/plugins/avatar-manager/
Description: Avatar Manager for WordPress is a sweet and simple plugin for storing avatars locally and more. Easily.
Version: 1.5.1
Author: Cătălin Dogaru
Author URI: http://cdog.dunked.com/
License: GPLv2 or later
*/
/*
Copyright © 2013 Cătălin Dogaru
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
define( 'AVATAR_MANAGER_VERSION', '1.5.1' );
define( 'AVATAR_MANAGER_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
define( 'AVATAR_MANAGER_AVATAR_UPLOADS', 0 );
define( 'AVATAR_MANAGER_DEFAULT_SIZE', 96 );
/**
* Sets up plugin defaults and makes Avatar Manager available for translation.
*
* @uses load_theme_textdomain() For translation/localization support.
* @uses plugin_basename() For retrieving the basename of the plugin.
*
* @since Avatar Manager 1.0.0
*/
function avatar_manager_init() {
// Makes Avatar Manager available for translation.
load_plugin_textdomain( 'avatar-manager', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );
}
add_action( 'init', 'avatar_manager_init' );
/**
* Registers sanitization callback and plugin setting fields.
*
* @uses register_setting() For registering a setting and its sanitization
* callback.
* @uses add_settings_field() For registering a settings field to a settings
* page and section.
* @uses __() For retrieving the translated string from the translate().
*
* @since Avatar Manager 1.0.0
*/
function avatar_manager_admin_init() {
// Registers plugin setting and its sanitization callback.
register_setting( 'discussion', 'avatar_manager', 'avatar_manager_sanitize_options' );
// Registers Avatar Uploads settings field under the Settings Discussion
// Screen.
add_settings_field( 'avatar-manager-avatar_uploads', __( 'Avatar Uploads', 'avatar-manager' ), 'avatar_manager_avatar_uploads_settings_field', 'discussion', 'avatars' );
// Registers Default Size settings field under the Settings Discussion
// Screen.
add_settings_field( 'avatar-manager-default-size', __( 'Default Size', 'avatar-manager' ), 'avatar_manager_default_size_settings_field', 'discussion', 'avatars' );
}
add_action( 'admin_init', 'avatar_manager_admin_init' );
/**
* Returns plugin default options.
*
* @since Avatar Manager 1.0.0
*
* @return array Plugin default options.
*/
function avatar_manager_get_default_options() {
$options = array(
'avatar_uploads' => AVATAR_MANAGER_AVATAR_UPLOADS,
'default_size' => AVATAR_MANAGER_DEFAULT_SIZE
);
return $options;
}
/**
* Returns plugin options.
*
* @uses get_option() For getting values for a named option.
* @uses avatar_manager_get_default_options() For retrieving plugin default
* options.
*
* @since Avatar Manager 1.0.0
*
* @return array Plugin options.
*/
function avatar_manager_get_options() {
return get_option( 'avatar_manager', avatar_manager_get_default_options() );
}
/**
* Sanitizes and validates plugin options.
*
* @uses avatar_manager_get_default_options() For retrieving plugin default
* options.
* @uses absint() For converting a value to a non-negative integer.
*
* @since Avatar Manager 1.0.0
*
* @param array $input An associative array with user input.
* @return array Sanitized plugin options.
*/
function avatar_manager_sanitize_options( $input ) {
$options = avatar_manager_get_default_options();
if ( isset( $input['avatar_uploads'] ) && trim( $input['avatar_uploads'] ) )
$options['avatar_uploads'] = trim( $input['avatar_uploads'] ) ? 1 : 0;
if ( isset( $input['default_size'] ) && is_numeric( trim( $input['default_size'] ) ) ) {
$options['default_size'] = absint( trim( $input['default_size'] ) );
if ( $options['default_size'] < 1 )
$options['default_size'] = 1;
elseif ( $options['default_size'] > 512 )
$options['default_size'] = 512;
}
return $options;
}
/**
* Prints Avatar Uploads settings field.
*
* @uses avatar_manager_get_options() For retrieving plugin options.
* @uses _e() For displaying the translated string from the translate().
* @uses checked() For comparing two given values.
*
* @since Avatar Manager 1.0.0
*/
function avatar_manager_avatar_uploads_settings_field() {
// Retrieves plugin options.
$options = avatar_manager_get_options();
?>
<fieldset>
<legend class="screen-reader-text">
<span>
<?php _e( 'Avatar Uploads', 'avatar-manager' ); ?>
</span>
</legend><!-- .screen-reader-text -->
<label>
<input <?php checked( $options['avatar_uploads'], 1, true ); ?> name="avatar_manager[avatar_uploads]" type="checkbox" value="1">
<?php _e( 'Anyone can upload', 'avatar-manager' ); ?>
</label>
</fieldset>
<?php
}
/**
* Prints Default Size settings field.
*
* @uses avatar_manager_get_options() For retrieving plugin options.
* @uses _e() For displaying the translated string from the translate().
*
* @since Avatar Manager 1.0.0
*/
function avatar_manager_default_size_settings_field() {
// Retrieves plugin options.
$options = avatar_manager_get_options();
?>
<fieldset>
<legend class="screen-reader-text">
<span>
<?php _e( 'Default Size', 'avatar-manager' ); ?>
</span>
</legend><!-- .screen-reader-text -->
<label>
<?php _e( 'Default size of the avatar image', 'avatar-manager' ); ?>
<input class="small-text" min="1" name="avatar_manager[default_size]" step="1" type="number" value="<?php echo $options['default_size']; ?>">
</label>
</fieldset>
<?php
}
/**
* Prints Avatar section.
*
* @uses avatar_manager_get_options() For retrieving plugin options.
* @uses is_multisite() For determining whether Multisite support is enabled.
* @uses switch_to_blog() For switching the current blog to a different blog.
* @uses get_post_meta() For retrieving attachment meta fields.
* @uses restore_current_blog() For restoring the current blog.
* @uses remove_filter() For removing a function attached to a specified action
* hook.
* @uses _e() For displaying the translated string from the translate().
* @uses checked() For comparing two given values.
* @uses get_avatar() For retrieving the avatar for a user.
* @uses esc_attr() For escaping HTML attributes.
* @uses add_query_arg() For retrieving a modified URL (with) query string.
* @uses self_admin_url() For retrieving an admin url link with optional path
* appended.
* @uses current_user_can() For checking whether the current user has a certain
* capability.
* @uses submit_button() For echoing a submit button, with provided text and
* appropriate class.
* @uses __() For retrieving the translated string from the translate().
*
* @since Avatar Manager 1.0.0
*
* @param array $profileuser User to edit.
*/
function avatar_manager_edit_user_profile( $profileuser ) {
// Retrieves plugin options.
$options = avatar_manager_get_options();
$avatar_type = isset( $profileuser->avatar_manager_avatar_type ) ? $profileuser->avatar_manager_avatar_type : 'gravatar';
if ( isset( $profileuser->avatar_manager_custom_avatar ) ) {
// Determines whether Multisite support is enabled.
if ( is_multisite() ) {
// Switches the current blog to a different blog.
switch_to_blog( $profileuser->avatar_manager_blog_id );
}
// Retrieves attachment meta fields based on attachment ID.
$custom_avatar_rating = get_post_meta( $profileuser->avatar_manager_custom_avatar, '_avatar_manager_custom_avatar_rating', true );
$user_has_custom_avatar = get_post_meta( $profileuser->avatar_manager_custom_avatar, '_avatar_manager_is_custom_avatar', true );
// Determines whether Multisite support is enabled.
if ( is_multisite() ) {
// Restores the current blog.
restore_current_blog();
}
}
if ( ! isset( $custom_avatar_rating ) || empty( $custom_avatar_rating ) )
$custom_avatar_rating = 'G';
if ( ! isset( $user_has_custom_avatar ) || empty( $user_has_custom_avatar ) )
$user_has_custom_avatar = false;
if ( $user_has_custom_avatar ) {
// Removes the function attached to the specified action hook.
remove_filter( 'get_avatar', 'avatar_manager_get_avatar' );
}
?>
<h3>
<?php _e( 'Avatar', 'avatar-manager' ); ?>
</h3>
<table class="form-table" id="avatar-manager">
<tr>
<th>
<?php _e( 'Display this avatar', 'avatar-manager' ); ?>
</th>
<td>
<fieldset>
<legend class="screen-reader-text">
<span>
<?php _e( 'Display this avatar', 'avatar-manager' ); ?>
</span><!-- .screen-reader-text -->
</legend>
<label>
<input <?php checked( $avatar_type, 'gravatar', true ); ?> name="avatar_manager_avatar_type" type="radio" value="gravatar">
<?php echo get_avatar( $profileuser->ID, 32, '', false ); ?>
<?php _e( 'Gravatar', 'avatar-manager' ); ?>
</label>
<?php _e( '<a href="http://codex.wordpress.org/How_to_Use_Gravatars_in_WordPress" target="_blank">More information</a>', 'avatar-manager' ); ?>
<?php if ( $user_has_custom_avatar ) : ?>
<br>
<label>
<input <?php checked( $avatar_type, 'custom', true ); ?> name="avatar_manager_avatar_type" type="radio" value="custom">
<?php echo avatar_manager_get_custom_avatar( $profileuser->ID, 32, '', false ); ?>
<?php _e( 'Custom', 'avatar-manager' ); ?>
</label>
<?php endif; ?>
<?php
if ( $user_has_custom_avatar && ( current_user_can( 'upload_files' ) || $options['avatar_uploads'] ) ) {
$href = esc_attr( add_query_arg( array(
'action' => 'update',
'avatar_manager_action' => 'remove-avatar',
'user_id' => $profileuser->ID
),
self_admin_url( IS_PROFILE_PAGE ? 'profile.php' : 'user-edit.php' ) ) );
?>
<a class="delete" href="<?php echo wp_nonce_url( $href, 'update-user_' . $profileuser->ID ); ?>" onclick="return showNotice.warn();">
<?php _e( 'Delete', 'avatar-manager' ); ?>
</a><!-- .delete -->
<?php
}
?>
</fieldset>
</td><!-- .avatar-manager -->
</tr>
<?php if ( current_user_can( 'upload_files' ) || $options['avatar_uploads'] ) : ?>
<tr>
<th>
<?php _e( 'Select Image', 'avatar-manager' ); ?>
</th>
<td>
<fieldset>
<legend class="screen-reader-text">
<span>
<?php _e( 'Select Image', 'avatar-manager' ); ?>
</span>
</legend><!-- .screen-reader-text -->
<label class="description" for="avatar-manager-upload-avatar">
<?php _e( 'Choose an image from your computer:', 'avatar-manager' ); ?>
</label><!-- .description -->
<br>
<input name="avatar_manager_import" type="file">
<input class="button" id="avatar-manager-upload-avatar" name="avatar-manager-upload-avatar" type="submit" value="<?php esc_attr_e( 'Upload', 'avatar-manager' ); ?>">
</fieldset>
</td>
</tr>
<?php endif; ?>
<?php if ( $user_has_custom_avatar ) : ?>
<tr>
<th>
<?php _e( 'Avatar Rating', 'avatar-manager' ); ?>
</th>
<td>
<fieldset>
<legend class="screen-reader-text">
<span>
<?php _e( 'Avatar Rating', 'avatar-manager' ); ?>
</span>
</legend><!-- .screen-reader-text -->
<?php
$ratings = array(
// Translators: Content suitability rating:
// http://bit.ly/89QxZA
'G' => __( 'G — Suitable for all audiences', 'avatar-manager' ),
// Translators: Content suitability rating:
// http://bit.ly/89QxZA
'PG' => __( 'PG — Possibly offensive, usually for audiences 13 and above', 'avatar-manager' ),
// Translators: Content suitability rating:
// http://bit.ly/89QxZA
'R' => __( 'R — Intended for adult audiences above 17', 'avatar-manager' ),
// Translators: Content suitability rating:
// http://bit.ly/89QxZA
'X' => __( 'X — Even more mature than above', 'avatar-manager' )
);
foreach ( $ratings as $key => $rating ) {
?>
<label>
<input <?php checked( $custom_avatar_rating, $key, true ); ?> name="avatar_manager_custom_avatar_rating" type="radio" value="<?php echo esc_attr( $key ); ?>">
<?php echo $rating; ?>
</label>
<br>
<?php
}
?>
<span class="description">
<?php _e( 'Choose a rating for your custom avatar.', 'avatar-manager' ); ?>
</span><!-- .description -->
</fieldset>
</td>
</tr>
<?php endif; ?>
</table><!-- .form-table #avatar-manager -->
<?php
}
add_action( 'edit_user_profile', 'avatar_manager_edit_user_profile' );
add_action( 'show_user_profile', 'avatar_manager_edit_user_profile' );
/**
* Enqueues plugin scripts and styles for Users Your Profile Screen.
*
* @uses is_admin() For checking if the Dashboard or the administration panel is
* attempting to be displayed.
* @uses wp_register_style() For registering a CSS style file.
* @uses wp_enqueue_style() For enqueuing a CSS style file.
* @uses wp_register_script() For registering a JS script file.
* @uses wp_enqueue_script() For enqueuing a JS script file.
*
* @since Avatar Manager 1.0.0
*/
function avatar_manager_admin_enqueue_scripts() {
if ( ! defined( 'IS_PROFILE_PAGE' ) )
return;
$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
// Registers plugin CSS style file.
wp_register_style( 'avatar-manager', AVATAR_MANAGER_PLUGIN_URL . 'avatar-manager' . $suffix . '.css', array(), '1.1.0' );
// Enqueues plugin CSS style file.
wp_enqueue_style( 'avatar-manager' );
// Registers plugin JS script file.
wp_register_script( 'avatar-manager', AVATAR_MANAGER_PLUGIN_URL . 'avatar-manager' . $suffix . '.js', array( 'jquery' ), '1.1.1' );
// Enqueues plugin JS script file.
wp_enqueue_script( 'avatar-manager' );
}
add_action( 'admin_enqueue_scripts', 'avatar_manager_admin_enqueue_scripts' );
add_action( 'wp_enqueue_scripts', 'avatar_manager_admin_enqueue_scripts' );
/**
* Generates a file path of an avatar image based on attachment ID and size.
*
* @uses get_attached_file() For retrieving attached file path based on
* attachment ID.
* @uses wp_basename() For i18n friendly version of basename().
*
* @since Avatar Manager 1.5.0
*
* @param int $attachment_id ID of the attachment.
* @param int $size Size of the avatar image.
* @return string The file path to the avatar image.
*/
function avatar_manager_generate_avatar_path( $attachment_id, $size ) {
// Retrieves attached file path based on attachment ID.
$filename = get_attached_file( $attachment_id );
$pathinfo = pathinfo( $filename );
$dirname = $pathinfo['dirname'];
$extension = $pathinfo['extension'];
// i18n friendly version of basename().
$basename = wp_basename( $filename, '.' . $extension );
$suffix = $size . 'x' . $size;
$dest_path = $dirname . '/' . $basename . '-' . $suffix . '.' . $extension;
return $dest_path;
}
/**
* Generates a full URI of an avatar image based on attachment ID and size.
*
* @uses wp_upload_dir() For retrieving path information on the currently
* configured uploads directory.
* @uses avatar_manager_generate_avatar_path() For generating a file path of an
* avatar image based on attachment ID and size.
*
* @since Avatar Manager 1.5.0
*
* @param int $attachment_id ID of the attachment.
* @param int $size Size of the avatar image.
* @return string The full URI to the avatar image.
*/
function avatar_manager_generate_avatar_url( $attachment_id, $size ) {
// Retrieves path information on the currently configured uploads directory.
$upload_dir = wp_upload_dir();
// Generates a file path of an avatar image based on attachment ID and size.
$path = avatar_manager_generate_avatar_path( $attachment_id, $size );
return str_replace( $upload_dir['basedir'], $upload_dir['baseurl'], $path );
}
/**
* Generates a resized copy of the specified avatar image.
*
* @uses avatar_manager_generate_avatar_path() For generating a file path of an
* avatar image based on attachment ID and size.
* @uses get_attached_file() For retrieving attached file path based on
* attachment ID.
* @uses wp_get_image_editor() For retrieving a WP_Image_Editor instance and
* loading a file into it.
* @uses is_wp_error() For checking whether the passed variable is a WordPress
* Error.
* @uses do_action() For calling the functions added to an action hook.
*
* @since Avatar Manager 1.0.0
*
* @param string $attachment_id ID of the avatar image to resize.
* @param int $size Size of the new avatar image.
* @return bool True if a new file is created; false if the file already exists.
*/
function avatar_manager_resize_avatar( $attachment_id, $size ) {
// Generates a file path of an avatar image based on attachment ID and size.
$dest_path = avatar_manager_generate_avatar_path( $attachment_id, $size );
if ( file_exists( $dest_path ) ) {
$skip = true;
} else {
// Retrieves attached file path based on attachment ID.
$path = get_attached_file( $attachment_id );
// Retrieves a WP_Image_Editor instance and loads a file into it.
$image = wp_get_image_editor( $path );
if ( ! is_wp_error( $image ) ) {
// Resizes current image.
$image->resize( $size, $size, true );
// Saves current image to file.
$image->save( $dest_path );
$skip = false;
}
}
// Calls the functions added to avatar_manager_resize_avatar action hook.
do_action( 'avatar_manager_resize_avatar', $attachment_id, $size );
return $skip;
}
/**
* Deletes an avatar image based on user ID.
*
* @uses get_user_meta() For retrieving user meta fields.
* @uses is_multisite() For determining whether Multisite support is enabled.
* @uses switch_to_blog() For switching the current blog to a different blog.
* @uses get_post_meta() For retrieving attachment meta fields.
* @uses avatar_manager_generate_avatar_path() For generating a file path of an
* avatar image based on attachment ID and size.
* @uses delete_post_meta() For deleting attachment meta fields.
* @uses restore_current_blog() For restoring the current blog.
* @uses delete_user_meta() For deleting user meta fields.
* @uses do_action() For calling the functions added to an action hook.
*
* @since Avatar Manager 1.0.0
*
* @param int $user_id ID of the user.
* @return bool Operation status.
*/
function avatar_manager_delete_avatar( $user_id ) {
// Retrieves user meta field based on user ID.
$attachment_id = get_user_meta( $user_id, 'avatar_manager_custom_avatar', true );
if ( empty( $attachment_id ) )
return false;
// Determines whether Multisite support is enabled.
if ( is_multisite() ) {
// Switches the current blog to a different blog.
switch_to_blog( get_user_meta( $user_id, 'avatar_manager_blog_id', true ) );
}
// Retrieves attachment meta field based on attachment ID.
$custom_avatar = get_post_meta( $attachment_id, '_avatar_manager_custom_avatar', true );
if ( is_array( $custom_avatar ) ) {
foreach ( $custom_avatar as $size => $skip ) {
if ( ! $skip ) {
// Generates a file path of an avatar image based on attachment
// ID and size.
$file = avatar_manager_generate_avatar_path( $attachment_id, $size );
@unlink( $file );
}
}
}
// Deletes attachment meta fields based on attachment ID.
delete_post_meta( $attachment_id, '_avatar_manager_custom_avatar' );
delete_post_meta( $attachment_id, '_avatar_manager_custom_avatar_rating' );
delete_post_meta( $attachment_id, '_avatar_manager_is_custom_avatar' );
// Determines whether Multisite support is enabled.
if ( is_multisite() ) {
// Restores the current blog.
restore_current_blog();
}
// Deletes user meta fields based on user ID.
delete_user_meta( $user_id, 'avatar_manager_avatar_type' );
delete_user_meta( $user_id, 'avatar_manager_custom_avatar' );
// Determines whether Multisite support is enabled.
if ( is_multisite() )
delete_user_meta( $user_id, 'avatar_manager_blog_id' );
// Calls the functions added to avatar_manager_delete_avatar action hook.
do_action( 'avatar_manager_delete_avatar', $user_id );
return true;
}
/**
* Deletes an avatar image based on attachment ID.
*
* @uses get_post() For taking a post ID and returning the database record for
* that post.
* @uses avatar_manager_delete_avatar() For deleting an avatar image based on
* attachment ID.
*
* @since Avatar Manager 1.5.0
*
* @param int $attachment_id ID of the attachment.
*/
function avatar_manager_delete_attachment( $attachment_id ) {
// Takes a post ID and returns the database record for that post.
$attachment = get_post( $attachment_id, ARRAY_A );
// Deletes an avatar image based on user ID.
avatar_manager_delete_avatar( $attachment['post_author'] );
}
add_action( 'delete_attachment', 'avatar_manager_delete_attachment' );
/**
* Updates user profile based on user ID.
*
* @uses avatar_manager_get_options() For retrieving plugin options.
* @uses sanitize_text_field() For sanitizing a string from user input or from
* the database.
* @uses update_user_meta() For updating user meta fields.
* @uses get_user_meta() For retrieving user meta fields.
* @uses update_post_meta() For updating attachment meta fields.
* @uses wp_handle_upload() For handling PHP uploads in WordPress.
* @uses wp_die() For killing WordPress execution and displaying HTML error
* message.
* @uses __() For retrieving the translated string from the translate().
* @uses avatar_manager_delete_avatar() For deleting an avatar image based on
* attachment ID.
* @uses wp_insert_attachment() For inserting an attachment into the media
* library.
* @uses wp_generate_attachment_metadata() For generating metadata for an
* attachment.
* @uses wp_update_attachment_metadata() For updating metadata for an
* attachment.
* @uses avatar_manager_resize_avatar() For generating a resized copy of the
* specified avatar image.
* @uses is_multisite() For determining whether Multisite support is enabled.
* @uses get_current_blog_id() For retrieving the current blog id.
* @uses get_edit_user_link() For getting the link to the user's edit profile
* page in the WordPress admin.
* @uses add_query_arg() For retrieving a modified URL (with) query string.
* @uses wp_redirect() For redirecting the user to a specified absolute URI.
*
* @since Avatar Manager 1.0.0
*
* @param int $user_id ID of the user to update.
*/
function avatar_manager_edit_user_profile_update( $user_id ) {
// Retrieves plugin options.
$options = avatar_manager_get_options();
// Sanitizes the string from user input.
$avatar_type = isset( $_POST['avatar_manager_avatar_type'] ) ? sanitize_text_field( $_POST['avatar_manager_avatar_type'] ) : 'gravatar';
// Updates user meta field based on user ID.
update_user_meta( $user_id, 'avatar_manager_avatar_type', $avatar_type );
// Retrieves user meta field based on user ID.
$attachment_id = get_user_meta( $user_id, 'avatar_manager_custom_avatar', true );
if ( ! empty( $attachment_id ) ) {
// Sanitizes the string from user input.
$custom_avatar_rating = isset( $_POST['avatar_manager_custom_avatar_rating'] ) ? sanitize_text_field( $_POST['avatar_manager_custom_avatar_rating'] ) : 'G';
// Updates attachment meta field based on attachment ID.
update_post_meta( $attachment_id, '_avatar_manager_custom_avatar_rating', $custom_avatar_rating );
}
if ( isset( $_POST['avatar-manager-upload-avatar'] ) && $_POST['avatar-manager-upload-avatar'] ) {
if ( ! function_exists( 'wp_handle_upload' ) )
require_once( ABSPATH . 'wp-admin/includes/file.php' );
if ( ! function_exists( 'wp_generate_attachment_metadata' ) )
require_once( ABSPATH . 'wp-admin/includes/image.php' );
// An associative array with allowed MIME types.
$mimes = array(
'bmp' => 'image/bmp',
'gif' => 'image/gif',
'jpe' => 'image/jpeg',
'jpeg' => 'image/jpeg',
'jpg' => 'image/jpeg',
'png' => 'image/png',
'tif' => 'image/tiff',
'tiff' => 'image/tiff'
);
// An associative array to override default variables.
$overrides = array(
'mimes' => $mimes,
'test_form' => false
);
// Handles PHP uploads in WordPress.
$file_attr = wp_handle_upload( $_FILES['avatar_manager_import'], $overrides );
if ( isset( $file_attr['error'] ) ) {
// Kills WordPress execution and displays HTML error message.
wp_die( $file_attr['error'], __( 'Image Upload Error', 'avatar-manager' ) );
}
if ( ! empty( $attachment_id ) ) {
// Deletes user's old avatar image.
avatar_manager_delete_avatar( $user_id );
}
// An associative array about the attachment.
$attachment = array(
'guid' => $file_attr['url'],
'post_content' => $file_attr['url'],
'post_mime_type' => $file_attr['type'],
'post_title' => basename( $file_attr['file'] )
);
// Inserts the attachment into the media library.
$attachment_id = wp_insert_attachment( $attachment, $file_attr['file'] );
// Generates metadata for the attachment.
$attachment_metadata = wp_generate_attachment_metadata( $attachment_id, $file_attr['file'] );
// Updates metadata for the attachment.
wp_update_attachment_metadata( $attachment_id, $attachment_metadata );
// Generates a resized copy of the avatar image.
$custom_avatar[ $options['default_size'] ] = avatar_manager_resize_avatar( $attachment_id, $options['default_size'] );
// Updates attachment meta fields based on attachment ID.
update_post_meta( $attachment_id, '_avatar_manager_custom_avatar', $custom_avatar );
update_post_meta( $attachment_id, '_avatar_manager_custom_avatar_rating', 'G' );
update_post_meta( $attachment_id, '_avatar_manager_is_custom_avatar', true );
// Updates user meta fields based on user ID.
update_user_meta( $user_id, 'avatar_manager_avatar_type', 'custom' );
update_user_meta( $user_id, 'avatar_manager_custom_avatar', $attachment_id );
// Determines whether Multisite support is enabled.
if ( is_multisite() ) {
// Retrieves the current blog id.
update_user_meta( $user_id, 'avatar_manager_blog_id', get_current_blog_id() );
}
}
if ( isset( $_GET['avatar_manager_action'] ) && $_GET['avatar_manager_action'] ) {
global $wp_http_referer;
$action = $_GET['avatar_manager_action'];
switch ( $action ) {
case 'remove-avatar':
// Deletes avatar image based on user ID.
avatar_manager_delete_avatar( $_GET['user_id'] );
break;
}
// Gets the link to the user's edit profile page in the WordPress admin.
$edit_user_link = get_edit_user_link( $user_id );
// Retrieves a modified URL (with) query string.
$redirect = add_query_arg( 'updated', true, $edit_user_link );
if ( $wp_http_referer ) {
// Retrieves a modified URL (with) query string.
$redirect = add_query_arg( 'wp_http_referer', urlencode( $wp_http_referer ), $redirect );
}
// Redirects the user to a specified absolute URI.
wp_redirect( $redirect );
exit;
}
}
add_action( 'edit_user_profile_update', 'avatar_manager_edit_user_profile_update' );
add_action( 'personal_options_update', 'avatar_manager_edit_user_profile_update' );
/**
* Returns user custom avatar based on user ID.
*
* @uses get_option() For getting values for a named option.
* @uses avatar_manager_get_options() For retrieving plugin options.
* @uses get_userdata() For retrieving user data by user ID.
* @uses is_ssl() For checking if SSL is being used.
* @uses add_query_arg() For retrieving a modified URL (with) query string.
* @uses esc_attr() For escaping HTML attributes.
* @uses get_user_meta() For retrieving user meta fields.
* @uses is_multisite() For determining whether Multisite support is enabled.
* @uses switch_to_blog() For switching the current blog to a different blog.
* @uses get_post_meta() For retrieving attachment meta fields.
* @uses avatar_manager_resize_avatar() For generating a resized copy of the
* specified avatar image.
* @uses update_post_meta() For updating attachment meta fields.
* @uses avatar_manager_generate_avatar_url() For generating a full URI of an
* avatar image based on attachment ID and size.
* @uses restore_current_blog() For restoring the current blog.
* @uses apply_filters() For calling the functions added to a filter hook.
*
* @since Avatar Manager 1.0.0
*
* @param int $user_id ID of the user.
* @param int $size Size of the avatar image.
* @param string $default URL to a default image to use if no avatar is
* available.
* @param string $alt Alternative text to use in image tag. Defaults to blank.
* @return string <img> tag for the user's avatar.
*/
function avatar_manager_get_custom_avatar( $user_id, $size = '', $default = '', $alt = false ) {
// Returns if showing avatars is not enabled.
if ( ! get_option( 'show_avatars' ) )
return false;
// Retrieves plugin options.
$options = avatar_manager_get_options();
if ( empty( $size ) || ! is_numeric( $size ) ) {
$size = $options['default_size'];
} else {
$size = absint( $size );
if ( $size < 1 )
$size = 1;
elseif ( $size > 512 )
$size = 512;
}
// Retrieves user data by user ID.
$user = get_userdata( $user_id );
// Returns if no user data was retrieved.
if ( empty( $user ) )
return false;
$email = $user->user_email;
if ( empty( $default ) ) {
// Retrieves values for the named option.
$avatar_default = get_option( 'avatar_default' );
if ( empty( $avatar_default ) )
$default = 'mystery';
else
$default = $avatar_default;
}
$email_hash = md5( strtolower( trim( $email ) ) );
if ( is_ssl() )
$host = 'https://secure.gravatar.com';
else
$host = sprintf( 'http://%d.gravatar.com', ( hexdec( $email_hash[0] ) % 2 ) );
if ( $default == 'mystery' ) {
$default = $host . '/avatar/ad516503a11cd5ca435acc9bb6523536?s=' . $size;
} elseif ( $default == 'gravatar_default' ) {
$default = '';
} elseif ( strpos( $default, 'http://' ) === 0 ) {
// Retrieves a modified URL (with) query string.
$default = add_query_arg( 's', $size, $default );
}
if ( $alt === false ) {
$alt = '';
} else {
// Escapes HTML attributes.
$alt = esc_attr( $alt );
}
// Retrieves values for the named option.
$avatar_rating = get_option( 'avatar_rating' );
// Retrieves user meta field based on user ID.
$attachment_id = get_user_meta( $user_id, 'avatar_manager_custom_avatar', true );
// Returns if no attachment ID was retrieved.
if ( empty( $attachment_id ) )
return false;
// Determine whether Multisite support is enabled.
if ( is_multisite() ) {
// Switches the current blog to a different blog.
switch_to_blog( get_user_meta( $user_id, 'avatar_manager_blog_id', true ) );
}
// Retrieves attachment meta field based on attachment ID.
$custom_avatar_rating = get_post_meta( $attachment_id, '_avatar_manager_custom_avatar_rating', true );
$ratings['G'] = 1;
$ratings['PG'] = 2;
$ratings['R'] = 3;
$ratings['X'] = 4;
if ( $ratings[ $custom_avatar_rating ] <= $ratings[ $avatar_rating ] ) {
// Retrieves attachment meta field based on attachment ID.
$custom_avatar = get_post_meta( $attachment_id, '_avatar_manager_custom_avatar', true );
if ( ! isset( $custom_avatar[ $size ] ) ) {
// Generates a resized copy of the avatar image.
$custom_avatar[ $size ] = avatar_manager_resize_avatar( $attachment_id, $size );
// Updates attachment meta field based on attachment ID.
update_post_meta( $attachment_id, '_avatar_manager_custom_avatar', $custom_avatar );
}
// Generates a full URI of an avatar image based on attachment ID and
// size.
$src = avatar_manager_generate_avatar_url( $attachment_id, $size );
$custom_avatar = '<img alt="' . $alt . '" class="avatar avatar-' . $size . ' photo avatar-default" height="' . $size . '" src="' . $src . '" width="' . $size . '">';
} else {
$src = $host . '/avatar/';
$src .= $email_hash;
$src .= '?s=' . $size;
$src .= '&d=' . urlencode( $default );
$src .= '&forcedefault=1';
$custom_avatar = '<img alt="' . $alt . '" class="avatar avatar-' . $size . ' photo avatar-default" height="' . $size . '" src="' . $src . '" width="' . $size . '">';
}
// Determines whether Multisite support is enabled.
if ( is_multisite() ) {
// Restores the current blog.
restore_current_blog();
}
// Calls the functions added to avatar_manager_get_custom_avatar filter
// hook.
return apply_filters( 'avatar_manager_get_custom_avatar', $custom_avatar, $user_id, $size, $default, $alt );
}
/**
* Returns the avatar for a user who provided a user ID or email address.
*
* @uses get_option() For getting values for a named option.
* @uses avatar_manager_get_options() For retrieving plugin options.
* @uses get_userdata() For retrieving user data by user ID.
* @uses avatar_manager_get_custom_avatar() For retrieving user custom avatar
* based on user ID.
* @uses apply_filters() For calling the functions added to a filter hook.
*
* @since Avatar Manager 1.0.0
*
* @param int|string|object $id_or_email A user ID, email address, or comment
* object.
* @param int $size Size of the avatar image.
* @param string $default URL to a default image to use if no avatar is
* available.
* @param string $alt Alternative text to use in image tag. Defaults to blank.
* @return string <img> tag for the user's avatar.
*/
function avatar_manager_get_avatar( $avatar = '', $id_or_email, $size = '', $default = '', $alt = false ) {
// Returns if showing avatars is not enabled.
if ( ! get_option( 'show_avatars' ) )
return false;
// Retrieves plugin options.
$options = avatar_manager_get_options();
if ( empty( $size ) || ! is_numeric( $size ) ) {
$size = $options['default_size'];
} else {
$size = absint( $size );
if ( $size < 1 )
$size = 1;
elseif ( $size > 512 )
$size = 512;
}
$email = '';
if ( is_numeric( $id_or_email ) ) {
$id = (int) $id_or_email;
// Retrieves user data by user ID.
$user = get_userdata( $id );
if ( $user )
$email = $user->user_email;
} elseif ( is_object( $id_or_email ) ) {
if ( ! empty( $id_or_email->user_id ) ) {
$id = (int) $id_or_email->user_id;
// Retrieves user data by user ID.
$user = get_userdata( $id );
if ( $user )
$email = $user->user_email;
} elseif ( ! empty( $id_or_email->comment_author_email ) ) {
$email = $id_or_email->comment_author_email;
}
} else {
$email = $id_or_email;
if ( $id = email_exists( $email ) ) {
// Retrieves user data by user ID.
$user = get_userdata( $id );
}
}
if ( isset( $user ) )
$avatar_type = $user->avatar_manager_avatar_type;
else
return $avatar;
if ( $avatar_type == 'custom' ) {
// Retrieves user custom avatar based on user ID.
$avatar = avatar_manager_get_custom_avatar( $user->ID, $size, $default, $alt );
}