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=== Simple Local Avatars ===
Contributors: jakemgold, 10up, thinkoomph
Donate link: https://10up.com/plugins/simple-local-avatars-wordpress/
Tags: avatar, gravatar, user photos, users, profile
Requires at least: 4.6
Tested up to: 5.2
Stable tag: 2.1.1
Text Domain: simple-local-avatars
Adds an avatar upload field to user profiles. Generates requested sizes on demand just like Gravatar!
== Description ==
Adds an avatar upload field to user profiles if the current user has media permissions. Generates requested sizes on demand just like Gravatar! Simple and lightweight.
Just edit a user profile, and scroll down to the new "Avatar" field. The plug-in will take care of cropping and sizing!
1. Stores avatars in the "uploads" folder where all of your other media is kept
1. Has a simple, native interface
1. Fully supports Gravatar and default avatars if no local avatar is set for the user - but also allows you turn off Gravatar
1. Generates the requested avatar size on demand (and stores the new size for efficiency), so it looks great, just like Gravatar!
1. Let's you decide whether lower privilege users (subscribers, contributors) can upload their own avatar
1. Enables rating of local avatars, just like Gravatar
== Installation ==
1. Install easily with the WordPress plugin control panel or manually download the plugin and upload the extracted folder to the `/wp-content/plugins/` directory
1. Activate the plugin through the 'Plugins' menu in WordPress
1. If you only want users with file upload capabilities to upload avatars, check the applicable option under Settings > Discussion
1. Start uploading avatars by editing user profiles!
Use avatars in your theme using WordPress' built in `get_avatar()` function: [http://codex.wordpress.org/Function_Reference/get_avatar](http://codex.wordpress.org/Function_Reference/get_avatar "get_avatar function")
You can also use `get_simple_local_avatar()` (with the same arguments) to retreive local avatars a bit faster, but this will make your theme dependent on this plug-in.
== Screenshots ==
1. Avatar upload field on a user profile page
== Changelog ==
= 2.1.1 =
* Fixed: Do not delete avatars just because they don't exist on the local filesystem. This was occasionally dumping avatars when WordPress uploads were stored elsewhere, e.g. a cloud service.
= 2.1 =
* *New:* All avatar uploads now go into the media library. Don't worry - users without the ability to upload files cannot otherwise see the contents of your media library. This allows local avatars to respect other functionality your site may have around uploaded images, such as external hosting.
* *New:* REST API support for getting and updating.
* *New:* Use .org language packs rather than bundling translations.
* *Fixed:* Avoid an `ArgumentCountError`.
* *Fixed:* A couple of internationalization issues.
= 2.0 =
* Choose or upload an avatar from the media library (for users with appropriate capabilities)!
* Local avatars are rated for appropriateness, just like Gravatar
* A new setting under Discussion enables administrators to turn off Gravatar (only use local avatars)
* Delete the local avatar with a single button click (like everywhere else in WordPress)
* Uploaded avatar file names are appended with the timestamp, addressing browser image caching issues
* New developer filter for preventing automatic rescaling: simple_local_avatars_dynamic_resize
* New developer filter for limiting upload size: simple_local_avatars_upload_limit
* Upgraded functions deprecated since WordPress 3.5
* Fixed translations not working on front end (although translations are now a bit out of date...)
* Hungarian translation added (needs further updating again with new version)
* Assorted refactoring / improvements under the hood
= 1.3.1 =
* Brazilian Portuguese and Belarusian translations
* Bug fixes (most notably correct naming of image files based on user display name)
* Optimization for WordPress 3.2 / 3.3 (substitutes deprecated function)
= 1.3 =
* Avatar file name saved as "user-display-name_avatar" (or other image extension)
* Russian localization added
* Assorted minor code optimizations
= 1.2.4 =
* Support for front end avatar uploads (e.g. Theme My Profile)
= 1.2.3 =
* Russian localization
= 1.2.2 =
* Fix for avatars uploaded pre-1.2.1 having a broken path after upgrade
= 1.2.1 =
* French localization
* Simplify uninstall code
= 1.2 =
* Fix path issues on some IIS servers (resulting in missing avatar images)
* Fix rare uninstall issues related to deleted avatars
* Spanish localization
* Other minor under the hood optimizations
= 1.1.3 =
* Properly deletes old avatars upon changing avatar
* Fixes "foreach" warning in debug mode when updating avatar image
= 1.1.2 =
* Norwegian localization
= 1.1.1 =
* Italian localization
= 1.1 =
* All users (regardless of capabilities) can upload avatars by default. To limit avatar uploading to users with upload files capabilities (Authors and above), check the applicable option under Settings > Discussion. This was the default behavior in 1.0.
* Localization support; German included
== Upgrade Notice ==
= 2.1 =
*Important note:* All avatar uploads now go into the media library. Don't worry - users without the ability to upload files cannot otherwise see the contents of your media library. This allows local avatars to respect other functionality your site may have around uploaded images, such as external hosting.
= 2.0 =
Upgraded to take advantage of *WordPress 3.5 and newer*. Does not support older versions! This has also *not* been tested with front end profile plug-ins - feedback welcome. Note that several language strings have been added or modified - revised translations would be welcome!
= 1.3.1 =
Like WordPress 3.2, now *REQUIRES* PHP 5.2 or newer.

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var simple_local_avatar_frame, avatar_spinner, avatar_ratings, avatar_container, avatar_form_button;
var avatar_working = false;
jQuery(document).ready(function($){
$( document.getElementById('simple-local-avatar-media') ).on( 'click', function(event) {
event.preventDefault();
if ( avatar_working )
return;
if ( simple_local_avatar_frame ) {
simple_local_avatar_frame.open();
return;
}
simple_local_avatar_frame = wp.media.frames.simple_local_avatar_frame = wp.media({
title: i10n_SimpleLocalAvatars.insertMediaTitle,
button: { text: i10n_SimpleLocalAvatars.insertIntoPost },
library : { type : 'image'},
multiple: false
});
simple_local_avatar_frame.on( 'select', function() {
// We set multiple to false so only get one image from the uploader
avatar_lock('lock');
var avatar_url = simple_local_avatar_frame.state().get('selection').first().toJSON().id;
jQuery.post( ajaxurl, { action: 'assign_simple_local_avatar_media', media_id: avatar_url, user_id: i10n_SimpleLocalAvatars.user_id, _wpnonce: i10n_SimpleLocalAvatars.mediaNonce }, function(data) {
if ( data != '' ) {
avatar_container.innerHTML = data;
$( document.getElementById('simple-local-avatar-remove') ).show();
avatar_ratings.disabled = false;
avatar_lock('unlock');
}
});
});
simple_local_avatar_frame.open();
});
$( document.getElementById('simple-local-avatar-remove') ).on('click',function(event){
event.preventDefault();
if ( avatar_working )
return;
avatar_lock('lock');
$.get( ajaxurl, { action: 'remove_simple_local_avatar', user_id: i10n_SimpleLocalAvatars.user_id, _wpnonce: i10n_SimpleLocalAvatars.deleteNonce })
.done(function(data) {
if ( data != '' ) {
avatar_container.innerHTML = data;
$( document.getElementById('simple-local-avatar-remove') ).hide();
avatar_ratings.disabled = true;
avatar_lock('unlock');
}
});
});
});
function avatar_lock( lock_or_unlock ) {
if ( undefined == avatar_spinner ) {
avatar_ratings = document.getElementById('simple-local-avatar-ratings');
avatar_spinner = jQuery( document.getElementById('simple-local-avatar-spinner') );
avatar_container = document.getElementById('simple-local-avatar-photo');
avatar_form_button = jQuery(avatar_ratings).closest('form').find('input[type=submit]');
}
if ( lock_or_unlock == 'unlock' ) {
avatar_working = false;
avatar_form_button.removeAttr('disabled');
avatar_spinner.hide();
} else {
avatar_working = true;
avatar_form_button.attr('disabled','disabled');
avatar_spinner.show();
}
}

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function avatar_lock(e){if(undefined==avatar_spinner){avatar_ratings=document.getElementById("simple-local-avatar-ratings");avatar_spinner=jQuery(document.getElementById("simple-local-avatar-spinner"));avatar_container=document.getElementById("simple-local-avatar-photo");avatar_form_button=jQuery(avatar_ratings).closest("form").find("input[type=submit]")}if(e=="unlock"){avatar_working=false;avatar_form_button.removeAttr("disabled");avatar_spinner.hide()}else{avatar_working=true;avatar_form_button.attr("disabled","disabled");avatar_spinner.show()}}var simple_local_avatar_frame,avatar_spinner,avatar_ratings,avatar_container,avatar_form_button;var avatar_working=false;jQuery(document).ready(function(e){e(document.getElementById("simple-local-avatar-media")).on("click",function(t){t.preventDefault();if(avatar_working)return;if(simple_local_avatar_frame){simple_local_avatar_frame.open();return}simple_local_avatar_frame=wp.media.frames.simple_local_avatar_frame=wp.media({title:i10n_SimpleLocalAvatars.insertMediaTitle,button:{text:i10n_SimpleLocalAvatars.insertIntoPost},library:{type:"image"},multiple:false});simple_local_avatar_frame.on("select",function(){avatar_lock("lock");var t=simple_local_avatar_frame.state().get("selection").first().toJSON().id;jQuery.post(ajaxurl,{action:"assign_simple_local_avatar_media",media_id:t,user_id:i10n_SimpleLocalAvatars.user_id,_wpnonce:i10n_SimpleLocalAvatars.mediaNonce},function(t){if(t!=""){avatar_container.innerHTML=t;e(document.getElementById("simple-local-avatar-remove")).show();avatar_ratings.disabled=false;avatar_lock("unlock")}})});simple_local_avatar_frame.open()});e(document.getElementById("simple-local-avatar-remove")).on("click",function(t){t.preventDefault();if(avatar_working)return;avatar_lock("lock");e.get(ajaxurl,{action:"remove_simple_local_avatar",user_id:i10n_SimpleLocalAvatars.user_id,_wpnonce:i10n_SimpleLocalAvatars.deleteNonce}).done(function(t){if(t!=""){avatar_container.innerHTML=t;e(document.getElementById("simple-local-avatar-remove")).hide();avatar_ratings.disabled=true;avatar_lock("unlock")}})})})

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<?php
/**
* Plugin Name: Simple Local Avatars
* Plugin URI: https://10up.com/plugins/simple-local-avatars-wordpress/
* Description: Adds an avatar upload field to user profiles. Generates requested sizes on demand, just like Gravatar! Simple and lightweight.
* Version: 2.1.1
* Author: Jake Goldman, 10up
* Author URI: https://10up.com
* License: GPLv2 or later
* Text Domain: simple-local-avatars
*/
/**
* add field to user profiles
*/
class Simple_Local_Avatars {
private $user_id_being_edited, $avatar_upload_error, $remove_nonce, $avatar_ratings;
public $options;
/**
* Set up the hooks and default values
*/
public function __construct() {
$this->options = (array) get_option( 'simple_local_avatars' );
$this->avatar_ratings = array(
'G' => __('G &#8212; Suitable for all audiences'),
'PG' => __('PG &#8212; Possibly offensive, usually for audiences 13 and above'),
'R' => __('R &#8212; Intended for adult audiences above 17'),
'X' => __('X &#8212; Even more mature than above')
);
// supplement remote avatars, but not if inside "local only" mode
if ( empty( $this->options['only'] ) )
add_filter( 'get_avatar', array( $this, 'get_avatar' ), 10, 5 );
add_action( 'admin_init', array( $this, 'admin_init' ) );
add_action( 'admin_enqueue_scripts', array( $this, 'admin_enqueue_scripts' ) );
add_action( 'show_user_profile', array( $this, 'edit_user_profile' ) );
add_action( 'edit_user_profile', array( $this, 'edit_user_profile' ) );
add_action( 'personal_options_update', array( $this, 'edit_user_profile_update' ) );
add_action( 'edit_user_profile_update', array( $this, 'edit_user_profile_update' ) );
add_action( 'admin_action_remove-simple-local-avatar', array( $this, 'action_remove_simple_local_avatar' ) );
add_action( 'wp_ajax_assign_simple_local_avatar_media', array( $this, 'ajax_assign_simple_local_avatar_media' ) );
add_action( 'wp_ajax_remove_simple_local_avatar', array( $this, 'action_remove_simple_local_avatar' ) );
add_action( 'user_edit_form_tag', array( $this, 'user_edit_form_tag' ) );
add_filter( 'avatar_defaults', array( $this, 'avatar_defaults' ) );
add_action( 'rest_api_init', array( $this, 'register_rest_fields' ) );
}
/**
* Retrieve the local avatar for a user who provided a user ID or email address.
*
* @param string $avatar Avatar return by original function
* @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
*/
public function get_avatar( $avatar = '', $id_or_email = '', $size = 96, $default = '', $alt = '' ) {
if ( is_numeric( $id_or_email ) )
$user_id = (int) $id_or_email;
elseif ( is_string( $id_or_email ) && ( $user = get_user_by( 'email', $id_or_email ) ) )
$user_id = $user->ID;
elseif ( is_object( $id_or_email ) && ! empty( $id_or_email->user_id ) )
$user_id = (int) $id_or_email->user_id;
if ( empty( $user_id ) )
return $avatar;
// fetch local avatar from meta and make sure it's properly ste
$local_avatars = get_user_meta( $user_id, 'simple_local_avatar', true );
if ( empty( $local_avatars['full'] ) )
return $avatar;
// check rating
$avatar_rating = get_user_meta( $user_id, 'simple_local_avatar_rating', true );
if ( ! empty( $avatar_rating ) && 'G' != $avatar_rating && ( $site_rating = get_option( 'avatar_rating' ) ) ) {
$ratings = array_keys( $this->avatar_ratings );
$site_rating_weight = array_search( $site_rating, $ratings );
$avatar_rating_weight = array_search( $avatar_rating, $ratings );
if ( false !== $avatar_rating_weight && $avatar_rating_weight > $site_rating_weight )
return $avatar;
}
// handle "real" media
if ( ! empty( $local_avatars['media_id'] ) ) {
// has the media been deleted?
if ( ! $avatar_full_path = get_attached_file( $local_avatars['media_id'] ) ) {
return $avatar;
}
}
$size = (int) $size;
if ( empty( $alt ) )
$alt = get_the_author_meta( 'display_name', $user_id );
// generate a new size
if ( ! array_key_exists( $size, $local_avatars ) ) {
$local_avatars[$size] = $local_avatars['full']; // just in case of failure elsewhere
// allow automatic rescaling to be turned off
if ( $allow_dynamic_resizing = apply_filters( 'simple_local_avatars_dynamic_resize', true ) ) :
$upload_path = wp_upload_dir();
// get path for image by converting URL, unless its already been set, thanks to using media library approach
if ( ! isset( $avatar_full_path ) )
$avatar_full_path = str_replace( $upload_path['baseurl'], $upload_path['basedir'], $local_avatars['full'] );
// generate the new size
$editor = wp_get_image_editor( $avatar_full_path );
if ( ! is_wp_error( $editor ) ) {
$resized = $editor->resize( $size, $size, true );
if ( ! is_wp_error( $resized ) ) {
$dest_file = $editor->generate_filename();
$saved = $editor->save( $dest_file );
if ( ! is_wp_error( $saved ) )
$local_avatars[$size] = str_replace( $upload_path['basedir'], $upload_path['baseurl'], $dest_file );
}
}
// save updated avatar sizes
update_user_meta( $user_id, 'simple_local_avatar', $local_avatars );
endif;
}
if ( 'http' != substr( $local_avatars[$size], 0, 4 ) )
$local_avatars[$size] = home_url( $local_avatars[$size] );
$author_class = is_author( $user_id ) ? ' current-author' : '' ;
$avatar = "<img alt='" . esc_attr( $alt ) . "' src='" . esc_url( $local_avatars[$size] ) . "' class='avatar avatar-{$size}{$author_class} photo' height='{$size}' width='{$size}' />";
return apply_filters( 'simple_local_avatar', $avatar );
}
public function admin_init() {
// upgrade pre 2.0 option
if ( $old_ops = get_option( 'simple_local_avatars_caps' ) ) {
if ( ! empty( $old_ops['simple_local_avatars_caps'] ) )
update_option( 'simple_local_avatars', array( 'caps' => 1 ) );
delete_option( 'simple_local_avatar_caps' );
}
register_setting( 'discussion', 'simple_local_avatars', array( $this, 'sanitize_options' ) );
add_settings_field(
'simple-local-avatars-only',
__('Local Avatars Only','simple-local-avatars'),
array( $this, 'avatar_settings_field' ),
'discussion',
'avatars',
array(
'key' => 'only',
'desc' => __( 'Only allow local avatars (still uses Gravatar for default avatars)', 'simple-local-avatars' )
)
);
add_settings_field(
'simple-local-avatars-caps',
__('Local Upload Permissions','simple-local-avatars'),
array( $this, 'avatar_settings_field' ),
'discussion',
'avatars',
array(
'key' => 'caps',
'desc' => __( 'Only allow users with file upload capabilities to upload local avatars (Authors and above)', 'simple-local-avatars' )
)
);
}
/**
* Add scripts to the profile editing page
*
* @param string $hook_suffix Page hook
*/
public function admin_enqueue_scripts( $hook_suffix ) {
if ( 'profile.php' != $hook_suffix && 'user-edit.php' != $hook_suffix )
return;
if ( current_user_can( 'upload_files' ) )
wp_enqueue_media();
$user_id = ( 'profile.php' == $hook_suffix ) ? get_current_user_id() : (int) $_GET['user_id'];
$this->remove_nonce = wp_create_nonce( 'remove_simple_local_avatar_nonce' );
$script_name_append = ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) ? '.dev' : '';
wp_enqueue_script( 'simple-local-avatars', plugins_url( '', __FILE__ ) . '/simple-local-avatars' . $script_name_append . '.js', array('jquery'), false, true );
wp_localize_script( 'simple-local-avatars', 'i10n_SimpleLocalAvatars', array(
'user_id' => $user_id,
'insertMediaTitle' => __('Choose an Avatar','simple-local-avatars'),
'insertIntoPost' => __('Set as avatar','simple-local-avatars'),
'deleteNonce' => $this->remove_nonce,
'mediaNonce' => wp_create_nonce( 'assign_simple_local_avatar_nonce' ),
) );
}
/**
* Sanitize new settings field before saving
*
* @param array|string $input Passed input values to sanitize
* @return array|string Sanitized input fields
*/
public function sanitize_options( $input ) {
$new_input['caps'] = empty( $input['caps'] ) ? 0 : 1;
$new_input['only'] = empty( $input['only'] ) ? 0 : 1;
return $new_input;
}
/**
* Settings field for avatar upload capabilities
*
* @param array $args Field arguments
*/
public function avatar_settings_field( $args ) {
$args = wp_parse_args( $args, array(
'key' => '',
'desc' => '',
) );
if ( empty( $this->options[$args['key']] ) )
$this->options[$args['key']] = 0;
echo '
<label for="simple-local-avatars-' . $args['key'] . '">
<input type="checkbox" name="simple_local_avatars[' . $args['key'] . ']" id="simple-local-avatars-' . $args['key'] . '" value="1" ' . checked( $this->options[$args['key']], 1, false ) . ' />
' . $args['desc'] . '
</label>
';
}
/**
* Output new Avatar fields to user editing / profile screen
*
* @param object $profileuser User object
*/
public function edit_user_profile( $profileuser ) {
?>
<h3><?php _e( 'Avatar','simple-local-avatars' ); ?></h3>
<table class="form-table">
<tr>
<th scope="row"><label for="simple-local-avatar"><?php _e('Upload Avatar','simple-local-avatars'); ?></label></th>
<td style="width: 50px;" id="simple-local-avatar-photo">
<?php
add_filter( 'pre_option_avatar_rating', '__return_null' ); // ignore ratings here
echo get_simple_local_avatar( $profileuser->ID );
remove_filter( 'pre_option_avatar_rating', '__return_null' );
?>
</td>
<td>
<?php
if ( ! $upload_rights = current_user_can('upload_files') )
$upload_rights = empty( $this->options['caps'] );
if ( $upload_rights ) {
do_action( 'simple_local_avatar_notices' );
wp_nonce_field( 'simple_local_avatar_nonce', '_simple_local_avatar_nonce', false );
$remove_url = add_query_arg(array(
'action' => 'remove-simple-local-avatar',
'user_id' => $profileuser->ID,
'_wpnonce' => $this->remove_nonce,
) );
?>
<?php
// if user is author and above hide the choose file option
// force them to use the WP Media Selector
if ( ! current_user_can( 'upload_files' ) ) { ?>
<p style="display: inline-block; width: 26em;">
<span class="description"><?php _e( 'Choose an image from your computer:' ); ?></span><br />
<input type="file" name="simple-local-avatar" id="simple-local-avatar" class="standard-text" />
<span class="spinner" id="simple-local-avatar-spinner"></span>
</p>
<?php } ?>
<p>
<?php if ( current_user_can( 'upload_files' ) && did_action( 'wp_enqueue_media' ) ) : ?><a href="#" class="button hide-if-no-js" id="simple-local-avatar-media"><?php _e( 'Choose from Media Library', 'simple-local-avatars' ); ?></a> &nbsp;<?php endif; ?>
<a href="<?php echo $remove_url; ?>" class="button item-delete submitdelete deletion" id="simple-local-avatar-remove"<?php if ( empty( $profileuser->simple_local_avatar ) ) echo ' style="display:none;"'; ?>><?php _e('Delete local avatar','simple-local-avatars'); ?></a>
</p>
<?php
} else {
if ( empty( $profileuser->simple_local_avatar ) )
echo '<span class="description">' . __('No local avatar is set. Set up your avatar at Gravatar.com.','simple-local-avatars') . '</span>';
else
echo '<span class="description">' . __('You do not have media management permissions. To change your local avatar, contact the blog administrator.','simple-local-avatars') . '</span>';
}
?>
</td>
</tr>
<tr>
<th scope="row"><?php _e('Rating'); ?></th>
<td colspan="2">
<fieldset id="simple-local-avatar-ratings" <?php disabled( empty( $profileuser->simple_local_avatar ) ); ?>>
<legend class="screen-reader-text"><span><?php _e('Rating'); ?></span></legend>
<?php
if ( empty( $profileuser->simple_local_avatar_rating ) || ! array_key_exists( $profileuser->simple_local_avatar_rating, $this->avatar_ratings ) )
$profileuser->simple_local_avatar_rating = 'G';
foreach ( $this->avatar_ratings as $key => $rating ) :
echo "\n\t<label><input type='radio' name='simple_local_avatar_rating' value='" . esc_attr( $key ) . "' " . checked( $profileuser->simple_local_avatar_rating, $key, false ) . "/> $rating</label><br />";
endforeach;
?>
<p class="description"><?php _e( 'If the local avatar is inappropriate for this site, Gravatar will be attempted.', 'simple-local-avatars' ); ?></p>
</fieldset></td>
</tr>
</table>
<?php
}
/**
* Ensure that the profile form has proper encoding type
*/
public function user_edit_form_tag() {
echo 'enctype="multipart/form-data"';
}
/**
* Saves avatar image to a user
*
* @param int|string $url_or_media_id Local URL for avatar or ID of attachment
* @param int $user_id ID of user to assign image to
*/
private function assign_new_user_avatar( $url_or_media_id, $user_id ) {
// delete the old avatar
$this->avatar_delete( $user_id ); // delete old images if successful
$meta_value = array();
// set the new avatar
if ( is_int( $url_or_media_id ) ) {
$meta_value['media_id'] = $url_or_media_id;
$url_or_media_id = wp_get_attachment_url( $url_or_media_id );
}
$meta_value['full'] = $url_or_media_id;
update_user_meta( $user_id, 'simple_local_avatar', $meta_value ); // save user information (overwriting old)
}
/**
* Save any changes to the user profile
*
* @param int $user_id ID of user being updated
*/
public function edit_user_profile_update( $user_id ) {
// check nonces
if( empty( $_POST['_simple_local_avatar_nonce'] ) || ! wp_verify_nonce( $_POST['_simple_local_avatar_nonce'], 'simple_local_avatar_nonce' ) )
return;
// check for uploaded files
if ( ! empty( $_FILES['simple-local-avatar']['name'] ) ) :
// need to be more secure since low privelege users can upload
if ( false !== strpos( $_FILES['simple-local-avatar']['name'], '.php' ) ) {
$this->avatar_upload_error = __('For security reasons, the extension ".php" cannot be in your file name.','simple-local-avatars');
add_action( 'user_profile_update_errors', array( $this, 'user_profile_update_errors' ) );
return;
}
// front end (theme my profile etc) support
if ( ! function_exists( 'media_handle_upload' ) )
require_once( ABSPATH . 'wp-admin/includes/media.php' );
// allow developers to override file size upload limit for avatars
add_filter( 'upload_size_limit', array( $this, 'upload_size_limit' ) );
$this->user_id_being_edited = $user_id; // make user_id known to unique_filename_callback function
$avatar_id = media_handle_upload( 'simple-local-avatar', 0, array(), array(
'mimes' => array(
'jpg|jpeg|jpe' => 'image/jpeg',
'gif' => 'image/gif',
'png' => 'image/png',
),
'test_form' => false,
'unique_filename_callback' => array( $this, 'unique_filename_callback' )
) );
remove_filter( 'upload_size_limit', array( $this, 'upload_size_limit' ) );
if ( is_wp_error( $avatar_id ) ) { // handle failures.
$this->avatar_upload_error = '<strong>' . __( 'There was an error uploading the avatar:', 'simple-local-avatars' ) . '</strong> ' . esc_html( $avatar_id->get_error_message() );
add_action( 'user_profile_update_errors', array( $this, 'user_profile_update_errors' ) );
return;
}
$this->assign_new_user_avatar( $avatar_id, $user_id );
endif;
// handle rating
if ( isset( $avatar_id ) || $avatar = get_user_meta( $user_id, 'simple_local_avatar', true ) ) {
if ( empty( $_POST['simple_local_avatar_rating'] ) || ! array_key_exists( $_POST['simple_local_avatar_rating'], $this->avatar_ratings ) )
$_POST['simple_local_avatar_rating'] = key( $this->avatar_ratings );
update_user_meta( $user_id, 'simple_local_avatar_rating', $_POST['simple_local_avatar_rating'] );
}
}
/**
* Allow developers to override the maximum allowable file size for avatar uploads
*
* @param int $bytes WordPress default byte size check
* @return int Maximum byte size
*/
public function upload_size_limit( $bytes ) {
return apply_filters( 'simple_local_avatars_upload_limit', $bytes );
}
/**
* Runs when a user clicks the Remove button for the avatar
*/
public function action_remove_simple_local_avatar() {
if ( ! empty( $_GET['user_id'] ) && ! empty( $_GET['_wpnonce'] ) && wp_verify_nonce( $_GET['_wpnonce'], 'remove_simple_local_avatar_nonce' ) ) {
$user_id = (int) $_GET['user_id'];
if ( ! current_user_can('edit_user', $user_id) )
wp_die( __('You do not have permission to edit this user.') );
$this->avatar_delete( $user_id ); // delete old images if successful
if ( defined( 'DOING_AJAX' ) && DOING_AJAX )
echo get_simple_local_avatar( $user_id );
}
if ( defined( 'DOING_AJAX' ) && DOING_AJAX )
die;
}
/**
* AJAX callback for assigning media ID fetched from media library to user
*/
public function ajax_assign_simple_local_avatar_media() {
// check required information and permissions
if ( empty( $_POST['user_id'] ) || empty( $_POST['media_id'] ) || ! current_user_can( 'upload_files' ) || ! current_user_can( 'edit_user', $_POST['user_id'] ) || empty( $_POST['_wpnonce'] ) || ! wp_verify_nonce( $_POST['_wpnonce'], 'assign_simple_local_avatar_nonce' ) )
die;
$media_id = (int) $_POST['media_id'];
$user_id = (int) $_POST['user_id'];
// ensure the media is real is an image
if ( wp_attachment_is_image( $media_id ) )
$this->assign_new_user_avatar( $media_id, $user_id );
echo get_simple_local_avatar( $user_id );
die;
}
/**
* remove the custom get_avatar hook for the default avatar list output on options-discussion.php
*/
public function avatar_defaults( $avatar_defaults ) {
remove_action( 'get_avatar', array( $this, 'get_avatar' ) );
return $avatar_defaults;
}
/**
* Delete avatars based on a user_id
*
* @param int $user_id
*/
public function avatar_delete( $user_id ) {
$old_avatars = (array) get_user_meta( $user_id, 'simple_local_avatar', true );
if ( empty( $old_avatars ) )
return;
// if it was uploaded media, don't erase the full size or try to erase an the ID
if ( array_key_exists( 'media_id', $old_avatars ) )
unset( $old_avatars['media_id'], $old_avatars['full'] );
if ( ! empty( $old_avatars ) ) {
$upload_path = wp_upload_dir();
foreach ($old_avatars as $old_avatar ) {
// derive the path for the file based on the upload directory
$old_avatar_path = str_replace( $upload_path['baseurl'], $upload_path['basedir'], $old_avatar );
if ( file_exists( $old_avatar_path ) )
unlink( $old_avatar_path );
}
}
delete_user_meta( $user_id, 'simple_local_avatar' );
delete_user_meta( $user_id, 'simple_local_avatar_rating' );
}
/**
* Creates a unique, meaningful file name for uploaded avatars.
*
* @param string $dir Path for file
* @param string $name Filename
* @param string $ext File extension (e.g. ".jpg")
* @return string Final filename
*/
public function unique_filename_callback( $dir, $name, $ext ) {
$user = get_user_by( 'id', (int) $this->user_id_being_edited );
$name = $base_name = sanitize_file_name( $user->display_name . '_avatar_' . time() );
// ensure no conflicts with existing file names
$number = 1;
while ( file_exists( $dir . "/$name$ext" ) ) {
$name = $base_name . '_' . $number;
$number++;
}
return $name . $ext;
}
/**
* Adds errors based on avatar upload problems.
*
* @param WP_Error $errors Error messages for user profile screen.
*/
public function user_profile_update_errors( WP_Error $errors ) {
$errors->add( 'avatar_error', $this->avatar_upload_error );
}
/**
* Registers the simple_local_avatar field in the REST API.
*/
public function register_rest_fields() {
register_rest_field( 'user', 'simple_local_avatar', array(
'get_callback' => array( $this, 'get_avatar_rest' ),
'update_callback' => array( $this, 'set_avatar_rest' ),
'schema' => array(
'description' => 'The users simple local avatar',
'type' => 'object',
)
));
}
/**
* Returns the simple_local_avatar meta key for the given user.
*
* @param object $user User object
*/
public function get_avatar_rest( $user ) {
$local_avatar = get_user_meta( $user['id'], 'simple_local_avatar', true );
if ( empty( $local_avatar ) ) {
return;
}
return $local_avatar;
}
/**
* Updates the simple local avatar from a REST request.
*
* Since we are just adding a field to the existing user endpoint
* we don't need to worry about ensuring the calling user has proper permissions.
* Only the user or an administrator would be able to change the avatar.
*
* @param array $input Input submitted via REST request.
* @param object $user The user making the request.
*/
public function set_avatar_rest( $input, $user ) {
$this->assign_new_user_avatar($input['media_id'], $user->ID);
}
}
$simple_local_avatars = new Simple_Local_Avatars;
/**
* more efficient to call simple local avatar directly in theme and avoid gravatar setup
*
* @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 Alternate text to use in image tag. Defaults to blank
* @return string <img> tag for the user's avatar
*/
function get_simple_local_avatar( $id_or_email, $size = 96, $default = '', $alt = '' ) {
global $simple_local_avatars;
$avatar = $simple_local_avatars->get_avatar( '', $id_or_email, $size, $default, $alt );
if ( empty ( $avatar ) ) {
remove_action( 'get_avatar', array( $simple_local_avatars, 'get_avatar' ) );
$avatar = get_avatar( $id_or_email, $size, $default, $alt );
add_action( 'get_avatar', array( $simple_local_avatars, 'get_avatar' ), 10, 5 );
}
return $avatar;
}
if ( ! function_exists( 'get_avatar' ) && ( $simple_local_avatars_options = get_option('simple_local_avatars') ) && ! empty( $simple_local_avatars_options['only'] ) ) :
/**
* Retrieve the avatar for a user who provided a user ID or email address.
*
* @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 get_avatar( $id_or_email, $size = 96, $default = '', $alt = '' ) {
global $simple_local_avatars;
if ( ! get_option('show_avatars') )
return false;
$safe_alt = empty( $alt ) ? '' : esc_attr( $alt );
if ( !is_numeric($size) )
$size = 96;
if ( ! $avatar = $simple_local_avatars->get_avatar( '', $id_or_email, $size, $default, $alt ) ) :
if ( empty($default) ) {
$avatar_default = get_option('avatar_default');
if ( empty($avatar_default) )
$default = 'mystery';
else
$default = $avatar_default;
}
$host = is_ssl() ? 'https://secure.gravatar.com' : 'http://0.gravatar.com';
if ( 'mystery' == $default )
$default = "$host/avatar/ad516503a11cd5ca435acc9bb6523536?s={$size}"; // ad516503a11cd5ca435acc9bb6523536 == md5('unknown@gravatar.com')
elseif ( 'blank' == $default )
$default = includes_url( 'images/blank.gif' );
elseif ( 'gravatar_default' == $default )
$default = "$host/avatar/?s={$size}";
else
$default = "$host/avatar/?d=$default&amp;s={$size}";
$avatar = "<img alt='{$safe_alt}' src='" . $default . "' class='avatar avatar-{$size} photo avatar-default' height='{$size}' width='{$size}' />";
endif;
return apply_filters('get_avatar', $avatar, $id_or_email, $size, $default, $alt);
}
endif;
/**
* on uninstallation, remove the custom field from the users and delete the local avatars
*/
register_uninstall_hook( __FILE__, 'simple_local_avatars_uninstall' );
function simple_local_avatars_uninstall() {
$simple_local_avatars = new Simple_Local_Avatars;
$users = get_users(array(
'meta_key' => 'simple_local_avatar',
'fields' => 'ids',
));
foreach ( $users as $user_id ):
$simple_local_avatars->avatar_delete( $user_id );
endforeach;
delete_option('simple_local_avatars');
}