Currently I’m using Simple Local Avatars on several of my blogs allowing people to upload their own custom avatar.
As far as I know Simple Local Avatars uses get_avatar
to check whether a custom avatar is selected, if not defaults to Gravatar.com.
Would it be possible to disable the Gravatar.com bit somehow, disabling Gravatar.com completely and returning just some local hosted image if no custom avatar is selected?
I hope it would be OK to post this here, but this would be the Simple Local Avatars file
<?php
/*
Plugin Name: Simple Local Avatars
Plugin URI: http://www.get10up.com/plugins/simple-local-avatars-wordpress/
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.
Version: 1.2.3
Author: Jake Goldman (10up), Oomph Inc
Author URI: http://www.get10up.com
*/
// add field to user profiles
class simple_local_avatars {
function simple_local_avatars() {
add_filter('get_avatar', array($this, 'get_avatar'), 10, 5);
add_action('admin_init', array($this, 'admin_init'));
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_filter('avatar_defaults', array($this, 'avatar_defaults'));
}
function get_avatar($avatar = '', $id_or_email, $size = '96', $default = '', $alt = false) {
if (is_numeric($id_or_email))
$user_id = (int) $id_or_email;
elseif (is_string($id_or_email)) {
if ($user = get_user_by_email($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))
$local_avatars = get_user_meta($user_id, 'simple_local_avatar', true);
if (!isset($local_avatars) || empty($local_avatars) || !isset($local_avatars['full'])) {
if (!empty($avatar)) // if called by filter
return $avatar;
remove_filter('get_avatar', 'get_simple_local_avatar');
$avatar = get_avatar($id_or_email, $size, $default);
add_filter('get_avatar', 'get_simple_local_avatar', 10, 5);
return $avatar;
}
if (!is_numeric($size)) // ensure valid size
$size = '96';
if (empty($alt))
$alt = get_the_author_meta('display_name', $user_id);
// generate a new size
if (empty($local_avatars[$size])) {
$upload_path = wp_upload_dir();
$avatar_full_path = str_replace($upload_path['baseurl'], $upload_path['basedir'], $local_avatars['full']);
$image_sized = image_resize($avatar_full_path, $size, $size, true);
if (is_wp_error($image_sized)) // deal with original being >= to original image (or lack of sizing ability)
$local_avatars[$size] = $local_avatars['full'];
else
$local_avatars[$size] = str_replace($upload_path['basedir'], $upload_path['baseurl'], $image_sized);
update_user_meta($user_id, 'simple_local_avatar', $local_avatars);
} elseif (substr($local_avatars[$size], 0, 4) != 'http')
$local_avatars[$size] = site_url($local_avatars[$size]);
$author_class = is_author($user_id) ? ' current-author' : '';
$avatar = "<img alt='" . esc_attr($alt) . "' src='" . $local_avatars[$size] . "' class='avatar avatar-{$size}{$author_class} photo' height='{$size}' width='{$size}' />";
return $avatar;
}
function admin_init() {
load_plugin_textdomain('simple-local-avatars', false, dirname(plugin_basename(__FILE__)) . '/localization/');
register_setting('discussion', 'simple_local_avatars_caps', array($this, 'sanitize_options'));
add_settings_field('simple-local-avatars-caps', __('Local Avatar Permissions', 'simple-local-avatars'), array($this, 'avatar_settings_field'), 'discussion', 'avatars');
}
function sanitize_options($input) {
$new_input['simple_local_avatars_caps'] = empty($input['simple_local_avatars_caps']) ? 0 : 1;
return $new_input;
}
function avatar_settings_field($args) {
$options = get_option('simple_local_avatars_caps');
echo '
<label for="simple_local_avatars_caps">
<input type="checkbox" name="simple_local_avatars_caps" id="simple_local_avatars_caps" value="1" ' . @checked($options['simple_local_avatars_caps'], 1, false) . ' />
' . __('Only allow users with file upload capabilities to upload local avatars (Authors and above)', 'simple-local-avatars') . '
</label>
';
}
function edit_user_profile($profileuser) {
?>
<h3><?php _e('Avatar', 'simple-local-avatars'); ?></h3>
<table class="form-table">
<tr>
<th><label for="simple-local-avatar"><?php _e('Upload Avatar', 'simple-local-avatars'); ?></label></th>
<td style="width: 50px;" valign="top">
<?php echo get_avatar($profileuser->ID); ?>
</td>
<td>
<?php
$options = get_option('simple_local_avatars_caps');
if (empty($options['simple_local_avatars_caps']) || current_user_can('upload_files')) {
do_action('simple_local_avatar_notices');
wp_nonce_field('simple_local_avatar_nonce', '_simple_local_avatar_nonce', false);
?>
<input type="file" name="simple-local-avatar" id="simple-local-avatar" /><br />
<?php
if (empty($profileuser->simple_local_avatar))
echo '<span class="description">' . __('No local avatar is set. Use the upload field to add a local avatar.', 'simple-local-avatars') . '</span>';
else
echo '
<input type="checkbox" name="simple-local-avatar-erase" value="1" /> ' . __('Delete local avatar', 'simple-local-avatars') . '<br />
<span class="description">' . __('Replace the local avatar by uploading a new avatar, or erase the local avatar (falling back to a gravatar) by checking the delete option.', 'simple-local-avatars') . '</span>
';
} else {
if (empty($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>
</table>
<script type="text/javascript">
var form = document.getElementById('your-profile');
form.encoding = 'multipart/form-data';
form.setAttribute('enctype', 'multipart/form-data');
</script>
<?php
}
function edit_user_profile_update($user_id) {
if (!wp_verify_nonce($_POST['_simple_local_avatar_nonce'], 'simple_local_avatar_nonce')) //security
return;
if (!empty($_FILES['simple-local-avatar']['name'])) {
$mimes = array(
'jpg|jpeg|jpe' => 'image/jpeg',
'gif' => 'image/gif',
'png' => 'image/png',
'bmp' => 'image/bmp',
'tif|tiff' => 'image/tiff'
);
$avatar = wp_handle_upload($_FILES['simple-local-avatar'], array('mimes' => $mimes, 'test_form' => false));
if (empty($avatar['file'])) // handle failures
{
switch ($avatar['error']) {
case 'File type does not meet security guidelines. Try another.':
add_action('user_profile_update_errors', create_function('$a', '$a->add("avatar_error",__("Please upload a valid image file for the avatar.","simple-local-avatars"));'));
break;
default:
add_action('user_profile_update_errors', create_function('$a', '$a->add("avatar_error","<strong>".__("There was an error uploading the avatar:","simple-local-avatars")."</strong> ' . esc_attr($avatar['error']) . '");'));
}
return;
}
$this->avatar_delete($user_id); // delete old images if successful
update_user_meta($user_id, 'simple_local_avatar', array('full' => $avatar['url'])); // save user information (overwriting old)
} elseif (isset($_POST['simple-local-avatar-erase']) && $_POST['simple-local-avatar-erase'] == 1)
$this->avatar_delete($user_id);
}
// remove the custom get_avatar hook for the default avatar list output on options-discussion.php
function avatar_defaults($avatar_defaults) {
remove_action('get_avatar', array($this, 'get_avatar'));
return $avatar_defaults;
}
// delete avatars based on user_id
function avatar_delete($user_id) {
$old_avatars = get_user_meta($user_id, 'simple_local_avatar', true);
$upload_path = wp_upload_dir();
if (is_array($old_avatars)) {
foreach ($old_avatars as $old_avatar) {
$old_avatar_path = str_replace($upload_path['baseurl'], $upload_path['basedir'], $old_avatar);
@unlink($old_avatar_path);
}
}
delete_user_meta($user_id, 'simple_local_avatar');
}
}
$simple_local_avatars = new simple_local_avatars;
if (!function_exists('get_simple_local_avatar')):
/*
* 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 = false) {
global $simple_local_avatars;
return $simple_local_avatars->get_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;
$users = get_users_of_blog();
foreach ($users as $user)
$simple_local_avatars->avatar_delete($user->user_id);
delete_option('simple_local_avatars_caps');
}
If you want a super-lightweight solution and don’t mind dabbling in a little code, drop this in your
functions.php
;Alternatively, if you want a bit more juice, with the ability to manage everything in the admin, check out Add New Default Avatar.
UPDATE: I wrote a quick plugin to be used alongside Simple Local Avatars.
The plugin description should be self-explanatory, but essentially the default avatar is
http://wordpress-theme-path/images/default_avatar.png
, which can be filtered in your theme’sfunctions
.php if it exists elsewhere;I successfully replaced all gravitar.com avatars with my own locally hosted avatar image by adding this to my theme’s
function.php
file:This assumes you have a local default avatar called
user.png
in your theme’simages
subdirectory.In the
discussion settings
admin panel, make sure “Show Avatars” is ticked.I haven’t tested this with Simple Local Avatars, but it works great with Basic User Avatars (which is a lightweight fork of Simple Local Avatars).
TIP: If you’re designing your own default avatar, I recommend making it 300×300 pixels so it will look good on “retina” screens when WP displays it at “150×150”. Then you can significantly reduce the filesize of the image by compressing it at tinyPNG.com.
Extension to the original question: In case you try to omit/replace the “You can change your profile picture on Gravatar” note in the WordPress profile page, add this to the functions.php of your active theme:
Remove avatars completely. Put this code in functions.php from your theme in use.