friendica-addons/gravatar/gravatar.php

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<?php
/**
* Name: Gravatar Support
* Description: If there is no avatar image for a new user or contact this plugin will look for one at Gravatar.
* Version: 1.0
* Author: Klaus Weidenbach <http://friendica.dszdw.net/profile/klaus>
*/
/**
* Installs the plugin hook
*/
function gravatar_install() {
register_hook('avatar_lookup', 'addon/gravatar/gravatar.php', 'gravatar_lookup');
logger("installed gravatar");
}
/**
* Removes the plugin hook
*/
function gravatar_uninstall() {
unregister_hook('avatar_lookup', 'addon/gravatar/gravatar.php', 'gravatar_lookup');
logger("uninstalled gravatar");
}
/**
* Looks up the avatar at gravatar.com and returns the URL.
*
* @param $a array
* @param &$b array
*/
function gravatar_lookup($a, &$b) {
$default_avatar = get_config('gravatar', 'default_img');
$rating = get_config('gravatar', 'rating');
// setting default value if nothing configured
if(! $default_avatar)
$default_avatar = 'identicon'; // pseudo-random geometric pattern based on email hash
if(! $rating)
$rating = 'g'; // suitable for display on all websites with any audience type
$hash = md5(trim(strtolower($b['email'])));
$url = 'http://www.gravatar.com/avatar/' .$hash .'.jpg';
$url .= '?s=' .$b['size'] .'&r=' .$rating;
if ($default_avatar != "gravatar")
$url .= '&d=' .$default_avatar;
$b['url'] = $url;
}
/**
* Display admin settings for this addon
*/
function gravatar_plugin_admin (&$a, &$o) {
$t = file_get_contents( dirname(__file__)."/admin.tpl");
$default_avatar = get_config('gravatar', 'default_img');
$rating = get_config('gravatar', 'rating');
// set default values for first configuration
if(! $default_avatar)
$default_avatar = 'identicon'; // pseudo-random geometric pattern based on email hash
if(! $rating)
$rating = 'g'; // suitable for display on all websites with any audience type
// Available options for the select boxes
$default_avatars = array(
'gravatar' => 'Gravatar',
'mm' => 'MM',
'identicon' => 'Identicon',
'monsterid' => 'Monsterid',
'wavatar' => 'Wavatar',
'retro' => 'Retro'
);
$ratings = array(
'g' => 'g',
'pg' => 'pg',
'r' => 'r',
'x' => 'x'
);
$o = '<input type="hidden" name="form_security_token" value="' .get_form_security_token("gravatarsave") .'">';
$o .= replace_macros( $t, array(
'$submit' => t('Submit'),
'$default_avatar' => array('avatar', t('Default avatar image'), $default_avatar, t('Select default avatar image if none was found at Gravatar. See README'), $default_avatars),
'$rating' => array('rating', t('Rating of images'), $rating, t('Select the appropriate avatar rating for your site. See README'), $ratings),
));
}
/**
* Save admin settings
*/
function gravatar_plugin_admin_post (&$a) {
check_form_security_token('gravatarsave');
$default_avatar = ((x($_POST, 'avatar')) ? notags(trim($_POST['avatar'])) : 'identicon');
$rating = ((x($_POST, 'rating')) ? notags(trim($_POST['rating'])) : 'g');
set_config('gravatar', 'default_img', $default_avatar);
set_config('gravatar', 'rating', $rating);
info( t('Gravatar settings updated.') .EOL);
}
?>