forked from GNUsocial/gnu-social
220 lines
8.9 KiB
PHP
220 lines
8.9 KiB
PHP
<?php
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/*
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* Laconica - a distributed open-source microblogging tool
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* Copyright (C) 2008, 2009, Control Yourself, 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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if (!defined('GNUSOCIAL')) { exit(1); }
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/**
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* Table Definition for deleted_notice
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*/
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class Deleted_notice extends Managed_DataObject
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{
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public $__table = 'deleted_notice'; // table name
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public $id; // int(4) primary_key not_null
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public $profile_id; // int(4) not_null
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public $uri; // varchar(191) unique_key not 255 because utf8mb4 takes more space
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public $act_uri; // varchar(191) unique_key not 255 because utf8mb4 takes more space
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public $act_created; // datetime() not_null
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public $created; // datetime() not_null
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public static function schemaDef()
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{
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return array(
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'fields' => array(
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'id' => array('type' => 'int', 'not null' => true, 'description' => 'notice ID'),
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'profile_id' => array('type' => 'int', 'not null' => true, 'description' => 'profile that deleted the notice'),
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'uri' => array('type' => 'varchar', 'length' => 191, 'description' => 'URI of the deleted notice'),
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'act_uri' => array('type' => 'varchar', 'length' => 191, 'description' => 'URI of the delete activity, may exist in notice table'),
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'act_created' => array('type' => 'datetime', 'not null' => true, 'description' => 'date the notice record was created'),
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'created' => array('type' => 'datetime', 'not null' => true, 'description' => 'date the notice record was deleted'),
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),
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'primary key' => array('id'),
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'unique keys' => array(
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'deleted_notice_uri_key' => array('uri'),
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'deleted_notice_act_uri_key' => array('act_uri'),
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),
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'indexes' => array(
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'deleted_notice_profile_id_idx' => array('profile_id'),
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),
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);
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}
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public static function addNew(Notice $notice, Profile $actor=null)
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{
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if (is_null($actor)) {
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$actor = $notice->getProfile();
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}
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if ($notice->getProfile()->hasRole(Profile_role::DELETED)) {
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// Don't emit notices if the notice author is (being) deleted
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return false;
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}
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$act = new Activity();
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$act->verb = ActivityVerb::DELETE;
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$act->time = time();
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$act->id = $notice->getUri();
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$act->content = sprintf(_m('<a href="%1$s">%2$s</a> deleted notice <a href="%3$s">{{%4$s}}</a>.'),
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htmlspecialchars($actor->getUrl()),
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htmlspecialchars($actor->getBestName()),
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htmlspecialchars($notice->getUrl()),
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htmlspecialchars($notice->getUri())
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);
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$act->actor = $actor->asActivityObject();
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$act->target = new ActivityObject(); // We don't save the notice object, as it's supposed to be removed!
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$act->target->id = $notice->getUri();
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$act->target->type = $notice->getObjectType();
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$act->objects = array(clone($act->target));
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$url = $notice->getUrl();
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$act->selfLink = $url;
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$act->editLink = $url;
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// This will make ActivityModeration run saveObjectFromActivity which adds
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// a new Deleted_notice entry in the database as well as deletes the notice
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// if the actor has permission to do so.
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$stored = Notice::saveActivity($act, $actor);
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return $stored;
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}
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static public function fromStored(Notice $stored)
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{
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$class = get_called_class();
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return self::getByPK(array('uri' => $stored->getUri()));
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}
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// The one who deleted the notice, not the notice's author
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public function getActor()
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{
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return Profile::getByID($this->profile_id);
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}
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// As above: The one who deleted the notice, not the notice's author
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public function getActorObject()
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{
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return $this->getActor()->asActivityObject();
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}
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static public function getObjectType()
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{
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return 'activity';
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}
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protected $_stored = array();
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public function getStored()
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{
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$uri = $this->getUri();
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if (!isset($this->_stored[$uri])) {
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$this->_stored[$uri] = Notice::getByPK(array('uri' => $uri));
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}
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return $this->_stored[$uri];
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}
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public function getUri()
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{
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return $this->uri;
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}
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public function asActivityObject(Profile $scoped=null)
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{
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$actobj = new ActivityObject();
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$actobj->id = $this->getUri();
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$actobj->type = ActivityObject::ACTIVITY;
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$actobj->actor = $this->getActorObject();
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$actobj->target = new ActivityObject();
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$actobj->target->id = $this->getUri();
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// FIXME: actobj->target->type? as in extendActivity, and actobj->target->actor maybe?
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$actobj->objects = array(clone($actobj->target));
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$actobj->verb = ActivityVerb::DELETE;
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$actobj->title = ActivityUtils::verbToTitle($actobj->verb);
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$actor = $this->getActor();
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$actobj->content = sprintf(_m('<a href="%1$s">%2$s</a> deleted notice {{%3$s}}.'),
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htmlspecialchars($actor->getUrl()),
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htmlspecialchars($actor->getBestName()),
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htmlspecialchars($this->getUri())
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);
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return $actobj;
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}
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static public function extendActivity(Notice $stored, Activity $act, Profile $scoped=null)
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{
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// the original notice id and type is still stored in the Notice table
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// so we use that information to describe the delete activity
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$act->target = new ActivityObject();
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$act->target->id = $stored->getUri();
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$act->target->type = $stored->getObjectType();
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$act->objects = array(clone($act->target));
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$act->title = ActivityUtils::verbToTitle($act->verb);
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}
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static public function beforeSchemaUpdate()
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{
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$table = strtolower(get_called_class());
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$schema = Schema::get();
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$schemadef = $schema->getTableDef($table);
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// 2015-10-03 We change the meaning of the 'uri' field and move its
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// content to the 'act_uri' for the deleted activity. act_created is
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// added too.
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if (isset($schemadef['fields']['act_uri'])) {
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// We already have the act_uri field, so no need to migrate to it.
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return;
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}
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echo "\nFound old $table table, upgrading it to contain 'act_uri' and 'act_created' field...";
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$schemadef['fields']['act_uri'] = array('type' => 'varchar', 'not null' => true, 'length' => 191, 'description' => 'URI of the deleted notice');
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$schemadef['fields']['act_created'] = array('type' => 'datetime', 'not null' => true, 'description' => 'datetime the notice record was created');
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unset($schemadef['unique keys']);
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$schema->ensureTable($table, $schemadef);
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$deleted = new Deleted_notice();
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$result = $deleted->find();
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if ($result === false) {
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print "\nFound no deleted_notice entries, continuing...";
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return true;
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}
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print "\nFound $result deleted_notice entries, aligning with new database layout: ";
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while($deleted->fetch()) {
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$orig = clone($deleted);
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$deleted->act_uri = $deleted->uri;
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// this is a fake URI just to have something to put there to avoid NULL. crc32 of uri is to avoid collisions
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$deleted->uri = TagURI::mint(strtolower(get_called_class()).':%d:%s:%s:%s:crc32=%x',
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$deleted->profile_id,
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ActivityUtils::resolveUri(self::getObjectType(), true),
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'unknown',
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common_date_iso8601($deleted->created),
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crc32($deleted->act_uri)
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);
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$deleted->act_created = $deleted->created; // we don't actually know when the notice was created
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$deleted->updateWithKeys($orig, 'id');
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print ".";
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}
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print "DONE.\n";
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print "Resuming core schema upgrade...";
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}
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}
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