gnu-social/actions/avatarbynickname.php

<?php
/*
 * Laconica - a distributed open-source microblogging tool
 * Copyright (C) 2008, Controlez-Vous, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

if (!defined('LACONICA')) { exit(1); }

class AvatarbynicknameAction extends Action {
    function handle($args) {
        parent::handle($args);
        $nickname = $this->trimmed('nickname');
        if (!$nickname) {
        	$this->client_error(_('No nickname.'));
			return;
		}
		$size = $this->trimmed('size');
        if (!$size) {
        	$this->client_error(_('No size.'));
			return;
		}
		$size = strtolower($size);
		if (!in_array($size, array('original', '96', '48', '24'))) {
        	$this->client_error(_('Invalid size.'));
			return;
		}

		$user = User::staticGet('nickname', $nickname);
		if (!$user) {
        	$this->client_error(_('No such user.'));
			return;
		}
		$profile = $user->getProfile();
		if (!$profile) {
        	$this->client_error(_('User has no profile.'));
			return;
		}
		if ($size == 'original') {
			$avatar = $profile->getOriginal();
		} else {
			$avatar = $profile->getAvatar($size+0);
		}

		if ($avatar) {
			$url = $avatar->url;
		} else {
			if ($size == 'original') {
				$url = common_default_avatar(AVATAR_PROFILE_SIZE);
			} else {
				$url = common_default_avatar($size+0);
			}
		}
		common_redirect($url, 302);
	}
}