identicon.php
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<?php
/**
* Identicon
*
* Plugin to display a unique github-like identification icons
* for contacts/addresses that do not have a photo image.
*
* @todo: Make it optional and configurable via user preferences
* @todo: Make color palettes match the current skin
* @todo: Implement optional SVG generator
*
* @license GNU GPLv3+
* @author Aleksander Machniak <alec@alec.pl>
* @website http://roundcube.net
*/
class identicon extends rcube_plugin
{
public $task = 'addressbook';
/**
* Plugin initialization.
*/
function init()
{
$this->add_hook('contact_photo', [$this, 'contact_photo']);
}
/**
* 'contact_photo' hook handler to inject an identicon image
*/
function contact_photo($args)
{
// pre-conditions, exit if photo already exists or invalid input
if (!empty($args['url']) || !empty($args['data'])
|| (empty($args['record']) && empty($args['email']))
) {
return $args;
}
$rcmail = rcmail::get_instance();
// supporting edit/add action may be tricky, let's not do this
if ($rcmail->action == 'show' || $rcmail->action == 'photo') {
$email = !empty($args['email']) ? $args['email'] : null;
if (!$email && $args['record']) {
$addresses = rcube_addressbook::get_col_values('email', $args['record'], true);
if (!empty($addresses)) {
$email = $addresses[0];
}
}
if ($email) {
require_once __DIR__ . '/identicon_engine.php';
$identicon = new identicon_engine($email);
if ($rcmail->action == 'show') {
// set photo URL using data-uri
if (($icon = $identicon->getBinary()) && ($icon = base64_encode($icon))) {
$mimetype = $identicon->getMimetype();
$args['url'] = sprintf('data:%s;base64,%s', $mimetype, $icon);
}
}
else {
// send the icon to the browser
$identicon = new identicon_engine($email);
if ($identicon->sendOutput()) {
exit;
}
}
}
}
return $args;
}
}