mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Echo
synced 2024-11-15 03:35:01 +00:00
698 lines
16 KiB
PHP
698 lines
16 KiB
PHP
<?php
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/**
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* Immutable class to represent an event.
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* In Echo nomenclature, an event is a single occurrence.
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*/
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class EchoEvent extends EchoAbstractEntity implements Bundleable {
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protected $type = null;
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protected $id = null;
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protected $variant = null;
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/**
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* @var User
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*/
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protected $agent = null;
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/**
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* Loaded dynamically on request
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*
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* @var Title
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*/
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protected $title = null;
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protected $pageId = null;
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/**
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* Loaded dynamically on request
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*
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* @var Revision
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*/
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protected $revision = null;
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protected $extra = [];
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/**
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* Notification timestamp
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* @var string
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*/
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protected $timestamp = null;
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/**
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* A hash used to bundle a set of events, events that can be
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* grouped for a user has the same bundle hash
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* @var string
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*/
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protected $bundleHash;
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/**
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* Other events bundled with this one
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*
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* @var EchoEvent[]
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*/
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protected $bundledEvents;
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/**
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* Deletion flag
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*
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* @var int
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*/
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protected $deleted = 0;
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/**
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* You should not call the constructor.
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* Instead use one of the factory functions:
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* EchoEvent::create To create a new event
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* EchoEvent::newFromRow To create an event object from a row object
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* EchoEvent::newFromID To create an event object from the database given its ID
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*/
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protected function __construct() {
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}
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## Save the id and timestamp
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function __sleep() {
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if ( !$this->id ) {
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throw new MWException( "Unable to serialize an uninitialized EchoEvent" );
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}
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return [ 'id', 'timestamp' ];
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}
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function __wakeup() {
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$this->loadFromID( $this->id );
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}
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function __toString() {
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return "EchoEvent(id={$this->id}; type={$this->type})";
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}
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/**
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* Creates an EchoEvent object
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* @param $info array Named arguments:
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* type (required): The event type;
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* variant: A variant of the type;
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* agent: The user who caused the event;
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* title: The page on which the event was triggered;
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* extra: Event-specific extra information (e.g. post content)
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*
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* @throws MWException
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* @return EchoEvent|bool false if aborted via hook or Echo DB is read-only
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*/
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public static function create( $info = [] ) {
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global $wgEchoNotifications;
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// Do not create event and notifications if write access is locked
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if ( wfReadOnly()
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|| MWEchoDbFactory::newFromDefault()->getEchoDb( DB_MASTER )->isReadOnly()
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) {
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return false;
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}
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$obj = new EchoEvent;
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static $validFields = [ 'type', 'variant', 'agent', 'title', 'extra' ];
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if ( empty( $info['type'] ) ) {
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throw new MWException( "'type' parameter is mandatory" );
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}
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if ( !isset( $wgEchoNotifications[$info['type']] ) ) {
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return false;
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}
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$obj->id = false;
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if ( isset( $info['timestamp'] ) ) {
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$obj->timestamp = $info['timestamp'];
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} else {
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$obj->timestamp = wfTimestampNow();
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}
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foreach ( $validFields as $field ) {
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if ( isset( $info[$field] ) ) {
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$obj->$field = $info[$field];
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}
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}
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// If the extra size is more than 50000 bytes, that means there is
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// probably a problem with the design of this notification type.
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// There might be data loss if the size exceeds the DB column size of
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// event_extra.
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if ( strlen( $obj->serializeExtra() ) > 50000 ) {
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wfDebugLog( __CLASS__, __FUNCTION__ . ': event extra data is too huge for ' . $info['type'] );
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return false;
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}
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if ( $obj->title ) {
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if ( !$obj->title instanceof Title ) {
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throw new MWException( 'Invalid title parameter' );
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}
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$obj->setTitle( $obj->title );
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}
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if ( $obj->agent && !
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( $obj->agent instanceof User ||
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$obj->agent instanceof StubObject )
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) {
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throw new MWException( "Invalid user parameter" );
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}
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if ( !Hooks::run( 'BeforeEchoEventInsert', [ $obj ] ) ) {
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return false;
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}
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// @Todo - Database insert logic should not be inside the model
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$obj->insert();
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Hooks::run( 'EchoEventInsertComplete', [ $obj ] );
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global $wgEchoUseJobQueue;
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EchoNotificationController::notify( $obj, $wgEchoUseJobQueue );
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return $obj;
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}
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/**
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* Convert the object's database property to array
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* @return array
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*/
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public function toDbArray() {
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$data = [
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'event_type' => $this->type,
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'event_variant' => $this->variant,
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'event_deleted' => $this->deleted,
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'event_extra' => $this->serializeExtra()
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];
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if ( $this->id ) {
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$data['event_id'] = $this->id;
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}
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if ( $this->agent ) {
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if ( $this->agent->isAnon() ) {
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$data['event_agent_ip'] = $this->agent->getName();
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} else {
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$data['event_agent_id'] = $this->agent->getId();
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}
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}
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if ( $this->pageId ) {
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$data['event_page_id'] = $this->pageId;
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} elseif ( $this->title ) {
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$pageId = $this->title->getArticleId();
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// Don't need any special handling for title with no id
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// as they are already stored in extra data array
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if ( $pageId ) {
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$data['event_page_id'] = $pageId;
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}
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}
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return $data;
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}
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/**
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* Check whether the echo event is an enabled event
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* @return bool
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*/
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public function isEnabledEvent() {
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global $wgEchoNotifications;
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if ( isset( $wgEchoNotifications[$this->getType()] ) ) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* Inserts the object into the database.
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*/
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protected function insert() {
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$eventMapper = new EchoEventMapper();
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$this->id = $eventMapper->insert( $this );
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$targetPages = self::resolveTargetPages( $this->getExtraParam( 'target-page' ) );
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if ( $targetPages ) {
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$targetMapper = new EchoTargetPageMapper();
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foreach ( $targetPages as $title ) {
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$targetPage = EchoTargetPage::create( $title, $this );
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if ( $targetPage ) {
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$targetMapper->insert( $targetPage );
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}
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}
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}
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}
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/**
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* @param int[]|int|false $targetPageIds
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* @return Title[]
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*/
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protected static function resolveTargetPages( $targetPageIds ) {
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if ( !$targetPageIds ) {
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return [];
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}
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if ( !is_array( $targetPageIds ) ) {
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$targetPageIds = [ $targetPageIds ];
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}
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$result = [];
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foreach ( $targetPageIds as $targetPageId ) {
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// Make sure the target-page id is a valid id
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$title = Title::newFromID( $targetPageId );
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// Try master if there is no match
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if ( !$title ) {
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$title = Title::newFromID( $targetPageId, Title::GAID_FOR_UPDATE );
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}
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if ( $title ) {
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$result[] = $title;
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}
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}
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return $result;
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}
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/**
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* Loads data from the provided $row into this object.
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*
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* @param $row stdClass row object from echo_event
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* @return bool Whether loading was successful
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*/
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public function loadFromRow( $row ) {
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$this->id = $row->event_id;
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$this->type = $row->event_type;
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// If the object is loaded from __sleep(), timestamp should be already set
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if ( !$this->timestamp ) {
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if ( isset( $row->notification_timestamp ) ) {
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$this->timestamp = wfTimestamp( TS_MW, $row->notification_timestamp );
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} else {
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$this->timestamp = wfTimestampNow();
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}
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}
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$this->variant = $row->event_variant;
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try {
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$this->extra = $row->event_extra ? unserialize( $row->event_extra ) : [];
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} catch ( Exception $e ) {
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// T73489: unserializing can fail for old notifications
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MWExceptionHandler::logException( $e );
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return false;
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}
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$this->pageId = $row->event_page_id;
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$this->deleted = $row->event_deleted;
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if ( $row->event_agent_id ) {
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$this->agent = User::newFromID( $row->event_agent_id );
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} elseif ( $row->event_agent_ip ) {
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$this->agent = User::newFromName( $row->event_agent_ip, false );
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}
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// Lazy load the title from getTitle() so that we can do a batch-load
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if (
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isset( $this->extra['page_title'], $this->extra['page_namespace'] )
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&& !$row->event_page_id
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) {
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$this->title = Title::makeTitleSafe(
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$this->extra['page_namespace'],
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$this->extra['page_title']
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);
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}
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if ( $row->event_page_id ) {
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$titleCache = EchoTitleLocalCache::create();
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$titleCache->add( $row->event_page_id );
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}
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if ( isset( $this->extra['revid'] ) && $this->extra['revid'] ) {
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$revisionCache = EchoRevisionLocalCache::create();
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$revisionCache->add( $this->extra['revid'] );
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}
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return true;
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}
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/**
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* Loads data from the database into this object, given the event ID.
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* @param $id int Event ID
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* @param $fromMaster bool
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* @return bool Whether it loaded successfully
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*/
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public function loadFromID( $id, $fromMaster = false ) {
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$eventMapper = new EchoEventMapper();
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$event = $eventMapper->fetchById( $id, $fromMaster );
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if ( !$event ) {
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return false;
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}
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// Copy over the attribute
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$this->id = $event->id;
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$this->type = $event->type;
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$this->variant = $event->variant;
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$this->extra = $event->extra;
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$this->pageId = $event->pageId;
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$this->agent = $event->agent;
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$this->title = $event->title;
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$this->deleted = $event->deleted;
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// Don't overwrite timestamp if it exists already
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if ( !$this->timestamp ) {
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$this->timestamp = $event->timestamp;
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}
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return true;
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}
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/**
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* Creates an EchoEvent from a row object
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*
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* @param $row stdClass row object from echo_event
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* @return EchoEvent|bool
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*/
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public static function newFromRow( $row ) {
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$obj = new EchoEvent();
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return $obj->loadFromRow( $row )
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? $obj
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: false;
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}
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/**
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* Creates an EchoEvent from the database by ID
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*
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* @param $id int Event ID
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* @return EchoEvent|bool
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*/
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public static function newFromID( $id ) {
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$obj = new EchoEvent();
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return $obj->loadFromID( $id )
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? $obj
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: false;
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}
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/**
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* Serialize the extra data for event
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* @return string
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*/
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public function serializeExtra() {
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if ( is_array( $this->extra ) || is_object( $this->extra ) ) {
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$extra = serialize( $this->extra );
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} elseif ( is_null( $this->extra ) ) {
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$extra = null;
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} else {
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$extra = serialize( [ $this->extra ] );
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}
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return $extra;
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}
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/**
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* Check if the event is dismissable for the given distribution type
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*
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* @param string $distribution notification distribution web/email
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* @return bool
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*/
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public function isDismissable( $distribution ) {
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global $wgEchoNotificationCategories;
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$category = $this->getCategory();
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if ( isset( $wgEchoNotificationCategories[$category]['no-dismiss'] ) ) {
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$noDismiss = $wgEchoNotificationCategories[$category]['no-dismiss'];
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} else {
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$noDismiss = [];
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}
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if ( !in_array( $distribution, $noDismiss ) && !in_array( 'all', $noDismiss ) ) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* Determine if the current user is allowed to view a particular
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* field of this revision, if it's marked as deleted. When no
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* revision is attached always returns true.
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*
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* @param $field Integer:one of Revision::DELETED_TEXT,
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* Revision::DELETED_COMMENT,
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* Revision::DELETED_USER
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* @param $user User object to check
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* @return Boolean
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*/
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public function userCan( $field, User $user ) {
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$revision = $this->getRevision();
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// User is handled specially
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if ( $field === Revision::DELETED_USER ) {
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$agent = $this->getAgent();
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if ( !$agent ) {
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// No user associated, so they can see it.
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return true;
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} elseif ( $revision
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&& $agent->getName() === $revision->getUserText( Revision::RAW )
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) {
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// If the agent and the revision user are the same, use rev_deleted
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return $revision->userCan( $field, $user );
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} else {
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// Use User::isHidden()
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return $user->isAllowedAny( 'viewsuppressed', 'hideuser' ) || !$agent->isHidden();
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}
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} elseif ( $revision ) {
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// A revision is set, use rev_deleted
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return $revision->userCan( $field, $user );
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} else {
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// Not a user, and there is no associated revision, so the user can see it
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return true;
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}
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}
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## Accessors
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/**
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* @return int
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*/
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public function getId() {
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return $this->id;
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}
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/**
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* @return string
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*/
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public function getTimestamp() {
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return $this->timestamp;
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}
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/**
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* @return string
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*/
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public function getType() {
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return $this->type;
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}
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/**
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* @return string|null
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*/
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public function getVariant() {
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return $this->variant;
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}
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/**
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* @return array|null
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*/
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public function getExtra() {
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return $this->extra;
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}
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public function getExtraParam( $key, $default = null ) {
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return isset( $this->extra[$key] ) ? $this->extra[$key] : $default;
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}
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/**
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* @return User|null
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*/
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public function getAgent() {
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return $this->agent;
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}
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/**
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* @param bool $fromMaster
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* @return null|Title
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*/
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public function getTitle( $fromMaster = false ) {
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if ( $this->title ) {
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return $this->title;
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} elseif ( $this->pageId ) {
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$titleCache = EchoTitleLocalCache::create();
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$title = $titleCache->get( $this->pageId );
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if ( $title ) {
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return $this->title = $title;
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}
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return $this->title = Title::newFromID( $this->pageId, $fromMaster ? Title::GAID_FOR_UPDATE : 0 );
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} elseif ( isset( $this->extra['page_title'], $this->extra['page_namespace'] ) ) {
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return $this->title = Title::makeTitleSafe(
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$this->extra['page_namespace'],
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$this->extra['page_title']
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);
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}
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return null;
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}
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/**
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* @return Revision|null
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*/
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public function getRevision() {
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if ( $this->revision ) {
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return $this->revision;
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} elseif ( isset( $this->extra['revid'] ) ) {
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$revisionCache = EchoRevisionLocalCache::create();
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$revision = $revisionCache->get( $this->extra['revid'] );
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if ( $revision ) {
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return $this->revision = $revision;
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}
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return $this->revision = Revision::newFromId( $this->extra['revid'] );
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}
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return null;
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}
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/**
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* Get the category of the event type
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* @return string
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*/
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public function getCategory() {
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$attributeManager = EchoAttributeManager::newFromGlobalVars();
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return $attributeManager->getNotificationCategory( $this->type );
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}
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/**
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* Get the section of the event type
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* @return string
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*/
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public function getSection() {
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$attributeManager = EchoAttributeManager::newFromGlobalVars();
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return $attributeManager->getNotificationSection( $this->type );
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}
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/**
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* Determine whether an event can use the job queue, or should be immediate
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* @return boolean
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*/
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public function getUseJobQueue() {
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global $wgEchoNotifications;
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if ( isset( $wgEchoNotifications[$this->type]['immediate'] ) ) {
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|
return !(bool)$wgEchoNotifications[$this->type]['immediate'];
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public function setType( $type ) {
|
|
$this->type = $type;
|
|
}
|
|
|
|
public function setVariant( $variant ) {
|
|
$this->variant = $variant;
|
|
}
|
|
|
|
public function setAgent( User $agent ) {
|
|
$this->agent = $agent;
|
|
}
|
|
|
|
public function setTitle( Title $title ) {
|
|
$this->title = $title;
|
|
$pageId = $title->getArticleID();
|
|
if ( $pageId ) {
|
|
$this->pageId = $pageId;
|
|
} else {
|
|
$this->extra['page_title'] = $title->getDBkey();
|
|
$this->extra['page_namespace'] = $title->getNamespace();
|
|
}
|
|
}
|
|
|
|
public function setExtra( $name, $value ) {
|
|
$this->extra[$name] = $value;
|
|
}
|
|
|
|
/**
|
|
* Get the message key of the primary or secondary link for a notification type.
|
|
*
|
|
* @param $rank String 'primary' or 'secondary'
|
|
* @return String i18n message key
|
|
*/
|
|
public function getLinkMessage( $rank ) {
|
|
global $wgEchoNotifications;
|
|
$type = $this->getType();
|
|
if ( isset( $wgEchoNotifications[$type][$rank . '-link']['message'] ) ) {
|
|
return $wgEchoNotifications[$type][$rank . '-link']['message'];
|
|
}
|
|
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Get the link destination of the primary or secondary link for a notification type.
|
|
*
|
|
* @param $rank String 'primary' or 'secondary'
|
|
* @return String The link destination, e.g. 'agent'
|
|
*/
|
|
public function getLinkDestination( $rank ) {
|
|
global $wgEchoNotifications;
|
|
$type = $this->getType();
|
|
if ( isset( $wgEchoNotifications[$type][$rank . '-link']['destination'] ) ) {
|
|
return $wgEchoNotifications[$type][$rank . '-link']['destination'];
|
|
}
|
|
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
public function getBundleHash() {
|
|
return $this->bundleHash;
|
|
}
|
|
|
|
/**
|
|
* @param $hash string
|
|
*/
|
|
public function setBundleHash( $hash ) {
|
|
$this->bundleHash = $hash;
|
|
}
|
|
|
|
/**
|
|
* @return bool
|
|
*/
|
|
public function isDeleted() {
|
|
return $this->deleted === 1;
|
|
}
|
|
|
|
public function setBundledEvents( $events ) {
|
|
$this->bundledEvents = $events;
|
|
}
|
|
|
|
public function getBundledEvents() {
|
|
return $this->bundledEvents;
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function canBeBundled() {
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function getBundlingKey() {
|
|
return $this->getBundleHash();
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function setBundledElements( $bundleables ) {
|
|
$this->setBundledEvents( $bundleables );
|
|
}
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
public function getSortingKey() {
|
|
return $this->getTimestamp();
|
|
}
|
|
}
|