gnu-social/actions/deleteprofile.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); }

require_once(INSTALLDIR.'/lib/settingsaction.php');

class DeleteprofileAction extends Action { // was SettingsAction...

	function get_instructions() {
		return _('You can update your personal profile info here '.
				  'so people know more about you.');
	}

	function show_form($msg=NULL, $success=false) {
		$this->form_header(_('Delete my account'), $msg, $success);
		common_element('h2', NULL, _('Delete my account'));
		$this->show_delete_form();
		common_show_footer();
	}

	function handle_post() {

		# CSRF protection

		$token = $this->trimmed('token');
		if (!$token || $token != common_session_token()) {
			$this->show_form(_('There was a problem with your session token. Try again, please.'));
			return;
		}

		if ($this->arg('deleteaccount')) {
			$this->delete_account_confirmation();
		}

	}

	function show_feeds_list($feeds) {
		common_element_start('div', array('class' => 'feedsdel'));
		common_element('p', null, 'Feeds:');
		common_element_start('ul', array('class' => 'xoxo'));

		foreach ($feeds as $key => $value) {
			$this->common_feed_item($feeds[$key]);
		}
		common_element_end('ul');
		common_element_end('div');
	}

    //TODO move to common.php (and retrace its origin)
	function common_feed_item($feed) {
        $user = common_current_user();
		$nickname = $user->nickname;

		switch($feed['item']) {
			case 'notices': default:
				$feed_classname = $feed['type'];
				$feed_mimetype = "application/".$feed['type']."+xml";
				$feed_title = "$nickname's ".$feed['version']." notice feed";
				$feed['textContent'] = "RSS";
				break;

			case 'foaf':
				$feed_classname = "foaf";
				$feed_mimetype = "application/".$feed['type']."+xml";
				$feed_title = "$nickname's FOAF file";
				$feed['textContent'] = "FOAF";
				break;
		}
		common_element_start('li');
		common_element('a', array('href' => $feed['href'],
								  'class' => $feed_classname,
								  'type' => $feed_mimetype,
								  'title' => $feed_title),
							$feed['textContent']);
		common_element_end('li');
	}

	function show_delete_form() {
		$user = common_current_user();
        $notices = DB_DataObject::factory('notice');
        $notices->profile_id = $user->id;
        $notice_count = (int) $notices->count();

		common_element_start('form', array('method' => 'POST',
										   'id' => 'delete',
										   'action' =>
										   common_local_url('profilesettings')));

		common_hidden('token', common_session_token());
        common_element('p', null, "You can copy your notices and contacts by saving the two links belowxbefore deleting your account. Be careful, this operation cannot be undone.");


		$this->show_feeds_list(array(0=>array('href'=>common_local_url('userrss', array('limit' => $notice_count, 'nickname' => $user->nickname)), 
											  'type' => 'rss',
											  'version' => 'RSS 1.0',
											  'item' => 'notices'),
									 1=>array('href'=>common_local_url('foaf',array('nickname' => $user->nickname)),
											  'type' => 'rdf',
											  'version' => 'FOAF',
											  'item' => 'foaf')));

		common_submit('deleteaccount', _('Delete my account'));
		common_element_end('form');
	}

    function delete_account_confirmation() {
        // ask confirmation then
        $this->delete_account();
    }

	function delete_account() {
		$user = common_current_user();
		assert(!is_null($user)); # should already be checked

        // deleted later through the profile
        /*
        $avatar = new Avatar;
        $avatar->profile_id = $user->id;
        $n_avatars_deleted = $avatar->delete();
        */

        $fave = new Fave;
        $fave->user_id = $user->id;
        $n_faves_deleted = $fave->delete(); 

        $confirmation = new Confirm_address;
        $confirmation->user_id = $user->id;
        $n_confirmations_deleted = $confirmation->delete();

        // TODO foreign stuff...

        $invitation = new Invitation;
        $invitation->user_id = $user->id;
        $n_invitations_deleted = $invitation->delete();

        $message_from = new Message;
        $message_from->from_profile = $user->id;
        $n_messages_from_deleted = $message_from->delete();

        $message_to = new Message;
        $message_to->to_profile = $user->id;
        $n_messages_to_deleted = $message_to->delete();

        $notice_inbox = new Notice_inbox;
        $notice_inbox->user_id = $user->id;
        $n_notices_inbox_deleted = $notice_inbox->delete();

        $profile_tagger = new Profile_tag;
        $profile_tagger->tagger = $user->id;
        $n_profiles_tagger_deleted = $profile_tagger->delete();

        $profile_tagged = new Profile_tag;
        $profile_tagged->tagged = $user->id;
        $n_profiles_tagged_deleted = $profile_tagged->delete();
               
        $remember_me = new Remember_me;
        $remember_me->user_id = $user->id;
        $n_remember_mes_deleted = $remember_me->delete();

        $reply= new Reply;
        $reply->profile_id = $user->id;
        $n_replies_deleted = $reply->delete();

        // FIXME we're not removings replies to deleted notices.
        //       notices should take care of that themselves.

        $notice = new Notice;
        $notice->profile_id = $user->id;
        $n_notices_deleted = $notice->delete();

        $subscriber = new Subscription;
        $subscriber->subscriber = $user->id;
        $n_subscribers_deleted = $subscriber->delete();

        $subscribed = new Subscription;
        $subscribed->subscribed = $user->id;
        $n_subscribeds_deleted = $subscribed->delete();

        $user_openid = new User_openid;
        $user_openid->user_id = $user->id;
        $n_user_openids_deleted = $user_openid->delete();

        $profile = new Profile;
        $profile->id = $user->id;
        $profile->delete_avatars();
        $n_profiles_deleted = $profile->delete();
        $n_users_deleted = $user->delete();

        // logout and redirect to public
        common_set_user(NULL);
        common_real_login(false); # not logged in
        common_forgetme(); # don't log back in!
        common_redirect(common_local_url('public'));
    }
}