105 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			105 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/*
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 * StatusNet - the distributed open-source microblogging tool
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 * Copyright (C) 2010, StatusNet, Inc.
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU Affero General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU Affero General Public License for more details.
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 *
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 * You should have received a copy of the GNU Affero General Public License
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 */
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/**
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 * Background job to delete prolific users without disrupting front-end too much.
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 *
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 * Up to 50 messages are deleted on each run through; when all messages are gone,
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 * the actual account is deleted.
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 *
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 * @package QueueHandler
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 * @maintainer Brion Vibber <brion@status.net>
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 */
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class DelUserQueueHandler extends QueueHandler
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{
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    const DELETION_WINDOW = 50;
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    public function transport()
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    {
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        return 'deluser';
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    }
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    public function handle($user) : bool
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    {
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        if (!($user instanceof User)) {
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            common_log(LOG_ERR, "Got a bogus user, not deleting");
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            return true;
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        }
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        $user = User::getKV('id', $user->id);
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        if (!$user) {
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            common_log(LOG_INFO, "User {$user->nickname} was deleted before we got here.");
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            return true;
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        }
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        try {
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            if (!$user->hasRole(Profile_role::DELETED)) {
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                common_log(LOG_INFO, "User {$user->nickname} is not pending deletion; aborting.");
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                return true;
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            }
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        } catch (UserNoProfileException $unp) {
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            common_log(LOG_INFO, "Deleting user {$user->nickname} with no profile... probably a good idea!");
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        }
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        $notice = $this->getNextBatch($user);
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        if ($notice->N) {
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            common_log(LOG_INFO, "Deleting next {$notice->N} notices by {$user->nickname}");
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            while ($notice->fetch()) {
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                $del = clone($notice);
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                $del->delete();
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            }
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            // @todo improve reliability in case we died during the above deletions
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            // with a fatal error. If the job is lost, we should perform some kind
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            // of garbage collection later.
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            // Queue up the next batch.
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            $qm = QueueManager::get();
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            $qm->enqueue($user, 'deluser');
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        } else {
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            // Out of notices? Let's finish deleting this profile!
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            try {
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                $user->getProfile()->delete();
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            } catch (UserNoProfileException $e) {
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                // in case a profile didn't exist for some reason, just delete the User directly
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                $user->delete();
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            }
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            common_log(LOG_INFO, "User $user->id $user->nickname deleted.");
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            return true;
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        }
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        return true;
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    }
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    /**
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     * Fetch the next self::DELETION_WINDOW messages for this user.
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     * @return Notice
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     */
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    protected function getNextBatch(User $user)
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    {
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        $notice = new Notice();
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        $notice->profile_id = $user->id;
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        $notice->limit(self::DELETION_WINDOW);
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        $notice->find();
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        return $notice;
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    }
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}
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