mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Echo
synced 2024-11-25 00:05:29 +00:00
e57dbfc86b
If we don't initialize $results, getForeignNotifications() will return null, and this will cause a fatal when trying to += it into an array. Change-Id: Ibb868cbf0b52ff2de41c5be82c9605801e51ffae
563 lines
18 KiB
PHP
563 lines
18 KiB
PHP
<?php
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class ApiEchoNotifications extends ApiQueryBase {
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/**
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* @var EchoForeignNotifications
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*/
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protected $foreignNotifications;
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/**
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* @var bool
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*/
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protected $crossWikiSummary = false;
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public function __construct( $query, $moduleName ) {
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parent::__construct( $query, $moduleName, 'not' );
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}
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public function execute() {
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// To avoid API warning, register the parameter used to bust browser cache
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$this->getMain()->getVal( '_' );
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if ( $this->getUser()->isAnon() ) {
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$this->dieUsage( 'Login is required', 'login-required' );
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}
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$params = $this->extractRequestParams();
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/* @deprecated */
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if ( $params['format'] === 'flyout' ) {
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$this->setWarning(
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"notformat=flyout has been deprecated and will be removed soon.\n".
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"Use notformat=model to get the raw data or notformat=special\n".
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"for pre-rendered HTML."
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);
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} elseif ( $params['format'] === 'html' ) {
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$this->setWarning(
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"notformat=html has been deprecated and will be removed soon.\n".
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"Use notformat=special instead."
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);
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}
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$this->foreignNotifications = new EchoForeignNotifications( $this->getUser() );
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$this->crossWikiSummary = $params['crosswikisummary'];
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$results = array();
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if ( in_array( wfWikiId(), $params['wikis'] ) ) {
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$results[wfWikiId()] = $this->getLocalNotifications( $params );
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}
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$foreignWikis = array_diff( $params['wikis'], array( wfWikiId() ) );
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if ( !empty( $foreignWikis ) ) {
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// get original request params, to forward them to individual wikis
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$requestParams = $this->getRequest()->getValues();
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if ( !isset( $requestParams['centralauthtoken'] ) ) {
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$requestParams['centralauthtoken'] = $this->getCentralAuthToken( $this->getUser() );
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}
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$results += $this->getForeignNotifications( $foreignWikis, $requestParams );
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}
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if ( !$results ) {
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return;
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}
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// after getting local & foreign results, merge them all together
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$result = $this->mergeResults( $results, $params );
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$this->getResult()->setIndexedTagName( $result, 'notification' );
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if ( $params['groupbysection'] ) {
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foreach ( $params['sections'] as $section ) {
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if ( in_array( 'list', $params['prop'] ) ) {
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$this->getResult()->setIndexedTagName( $result[$section]['list'], 'notification' );
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}
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}
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} else {
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if ( in_array( 'list', $params['prop'] ) ) {
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$this->getResult()->setIndexedTagName( $result['list'], 'notification' );
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}
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}
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$this->getResult()->addValue( 'query', $this->getModuleName(), $result );
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}
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/**
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* @param array $params
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* @return array
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*/
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protected function getLocalNotifications( array $params ) {
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$user = $this->getUser();
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$prop = $params['prop'];
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$result = array();
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if ( in_array( 'list', $prop ) ) {
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// Group notification results by section
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if ( $params['groupbysection'] ) {
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foreach ( $params['sections'] as $section ) {
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$result[$section] = $this->getSectionPropList(
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$user, $section, $params['filter'], $params['limit'],
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$params[$section . 'continue'], $params['format'], $params[$section . 'unreadfirst']
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);
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if ( $this->crossWikiSummary && $this->foreignNotifications->getCount( $section ) > 0 ) {
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// insert fake notification for foreign notifications
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array_unshift( $result[$section]['list'], $this->makeForeignNotification( $user, $params['format'], $section ) );
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}
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}
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} else {
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$attributeManager = EchoAttributeManager::newFromGlobalVars();
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$result = $this->getPropList(
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$user,
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$attributeManager->getUserEnabledEventsbySections( $user, 'web', $params['sections'] ),
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$params['filter'], $params['limit'], $params['continue'], $params['format'], $params['unreadfirst']
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);
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// if exactly 1 section is specified, we consider only that section, otherwise
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// we pass ALL to consider all foreign notifications
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$section = count( $params['sections'] ) === 1 ? reset( $params['sections'] ) : EchoAttributeManager::ALL;
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if ( $this->crossWikiSummary && $this->foreignNotifications->getCount( $section ) > 0 ) {
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array_unshift( $result['list'], $this->makeForeignNotification( $user, $params['format'], $section ) );
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}
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}
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}
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if ( in_array( 'count', $prop ) ) {
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$result = array_merge_recursive(
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$result,
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$this->getPropCount( $user, $params['sections'], $params['groupbysection'] )
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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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* Internal method for getting the property 'list' data for individual section
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* @param User $user
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* @param string $section 'alert' or 'message'
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* @param string $filter 'all', 'read' or 'unread'
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* @param int $limit
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* @param string $continue
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* @param string $format
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* @param boolean $unreadFirst
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* @return array
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*/
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protected function getSectionPropList( User $user, $section, $filter, $limit, $continue, $format, $unreadFirst = false ) {
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$attributeManager = EchoAttributeManager::newFromGlobalVars();
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$sectionEvents = $attributeManager->getUserEnabledEventsbySections( $user, 'web', array( $section ) );
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if ( !$sectionEvents ) {
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$result = array(
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'list' => array(),
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'continue' => null
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);
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} else {
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$result = $this->getPropList(
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$user, $sectionEvents, $filter, $limit, $continue, $format, $unreadFirst
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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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* Internal helper method for getting property 'list' data, this is based
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* on the event types specified in the arguments and it could be event types
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* of a set of sections or a single section
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* @param User $user
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* @param string[] $eventTypes
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* @param string $filter 'all', 'read' or 'unread'
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* @param int $limit
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* @param string $continue
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* @param string $format
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* @param boolean $unreadFirst
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* @return array
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*/
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protected function getPropList( User $user, array $eventTypes, $filter, $limit, $continue, $format, $unreadFirst = false ) {
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$result = array(
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'list' => array(),
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'continue' => null
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);
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$notifMapper = new EchoNotificationMapper();
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// check if we want both read & unread...
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if ( in_array( 'read', $filter ) && in_array( '!read', $filter ) ) {
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// Prefer unread notifications. We don't care about next offset in this case
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if ( $unreadFirst ) {
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// query for unread notifications past 'continue' (offset)
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$notifs = $notifMapper->fetchUnreadByUser( $user, $limit + 1, $continue, $eventTypes );
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/*
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* 'continue' has a timestamp & id (to start with, in case
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* there would be multiple events with that same timestamp)
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* Unread notifications should always load first, but may be
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* older than read ones, but we can work with current
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* 'continue' format:
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* * if there's no continue, first load unread notifications
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* * if there's a continue, fetch unread notifications first
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* * if there are no unread ones, continue must've been
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* about read notifications: fetch 'em
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* * if there are unread ones but first one doesn't match
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* continue id, it must've been about read notifications:
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* discard unread & fetch read
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*/
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if ( $notifs && $continue ) {
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/** @var EchoNotification $first */
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$first = reset( $notifs );
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$continueId = intval( trim( strrchr( $continue, '|' ), '|' ) );
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if ( $first->getEvent()->getID() !== $continueId ) {
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// notification doesn't match continue id, it must've been
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// about read notifications: discard all unread ones
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$notifs = array();
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}
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}
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// If there are less unread notifications than we requested,
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// then fill the result with some read notifications
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$count = count( $notifs );
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// we need 1 more than $limit, so we can respond 'continue'
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if ( $count <= $limit ) {
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// Query planner should be smart enough that passing a short list of ids to exclude
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// will only visit at most that number of extra rows.
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$mixedNotifs = $notifMapper->fetchByUser(
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$user,
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$limit - $count + 1,
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// if there were unread notifications, 'continue' was for
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// unread notifications and we should start fetching read
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// notifications from start
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$count > 0 ? null : $continue,
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$eventTypes,
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array_keys( $notifs )
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);
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foreach ( $mixedNotifs as $notif ) {
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$notifs[$notif->getEvent()->getId()] = $notif;
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}
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}
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} else {
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$notifs = $notifMapper->fetchByUser( $user, $limit + 1, $continue, $eventTypes );
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}
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} elseif ( in_array( 'read', $filter ) ) {
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$notifs = $notifMapper->fetchReadByUser( $user, $limit + 1, $continue, $eventTypes );
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} else { // = if ( in_array( '!read', $filter ) ) {
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$notifs = $notifMapper->fetchUnreadByUser( $user, $limit + 1, $continue, $eventTypes );
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}
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foreach ( $notifs as $notif ) {
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$output = EchoDataOutputFormatter::formatOutput( $notif, $format, $user, $this->getLanguage() );
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if ( $output !== false ) {
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$result['list'][] = $output;
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}
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}
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// Generate offset if necessary
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if ( count( $result['list'] ) > $limit ) {
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$lastItem = array_pop( $result['list'] );
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// @todo: what to do with this when fetching from multiple wikis?
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$result['continue'] = $lastItem['timestamp']['utcunix'] . '|' . $lastItem['id'];
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}
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return $result;
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}
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/**
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* Internal helper method for getting property 'count' data
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* @param User $user
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* @param string[] $sections
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* @param boolean $groupBySection
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* @return array
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*/
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protected function getPropCount( User $user, array $sections, $groupBySection ) {
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$result = array();
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$notifUser = MWEchoNotifUser::newFromUser( $user );
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$global = $this->crossWikiSummary ? 'preference' : false;
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// Always get total count
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$rawCount = $notifUser->getNotificationCount( true, DB_SLAVE, EchoAttributeManager::ALL, $global );
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$result['rawcount'] = $rawCount;
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$result['count'] = EchoNotificationController::formatNotificationCount( $rawCount );
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if ( $groupBySection ) {
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foreach ( $sections as $section ) {
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$rawCount = $notifUser->getNotificationCount( /* $tryCache = */true, DB_SLAVE, $section, $global );
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$result[$section]['rawcount'] = $rawCount;
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$result[$section]['count'] = EchoNotificationController::formatNotificationCount( $rawCount );
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}
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}
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return $result;
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}
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protected function makeForeignNotification( User $user, $format, $section = EchoAttributeManager::ALL ) {
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$wikis = $this->foreignNotifications->getWikis( $section );
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$count = $this->foreignNotifications->getCount( $section );
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// Sort wikis by timestamp, in descending order (newest first)
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usort( $wikis, function ( $a, $b ) use ( $section ) {
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$aTimestamp = $this->foreignNotifications->getWikiTimestamp( $a, $section ) ?: new MWTimestamp( 0 );
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$bTimestamp = $this->foreignNotifications->getWikiTimestamp( $b, $section ) ?: new MWTimestamp( 0 );
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return $bTimestamp->getTimestamp( TS_UNIX ) - $aTimestamp->getTimestamp( TS_UNIX );
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} );
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$row = new StdClass;
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$row->event_id = -1;
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$row->event_type = 'foreign';
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$row->event_variant = null;
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$row->event_agent_id = $user->getId();
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$row->event_agent_ip = null;
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$row->event_page_id = null;
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$row->event_page_namespace = null;
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$row->event_page_title = null;
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$row->event_extra = serialize( array(
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'section' => $section ?: 'all',
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'wikis' => $wikis,
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'count' => $count
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) );
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$row->notification_user = $user->getId();
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$row->notification_timestamp = $this->foreignNotifications->getTimestamp( $section );
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$row->notification_read_timestamp = null;
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$row->notification_bundle_base = 1;
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$row->notification_bundle_hash = md5( 'bogus' );
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$row->notification_bundle_display_hash = md5( 'also-bogus' );
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// Format output like any other notification
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$notif = EchoNotification::newFromRow( $row );
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$output = EchoDataOutputFormatter::formatOutput( $notif, $format, $user, $this->getLanguage() );
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// Add cross-wiki-specific data
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$output['section'] = $section ?: 'all';
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$output['count'] = $count;
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$output['sources'] = EchoForeignNotifications::getApiEndpoints( $wikis );
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// Add timestamp information
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foreach ( $output['sources'] as $wiki => &$data ) {
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$data['ts'] = $this->foreignNotifications->getWikiTimestamp( $wiki, $section )->getTimestamp( TS_MW );
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}
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return $output;
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}
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/**
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* @param User $user
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* @return string
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*/
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protected function getCentralAuthToken( User $user ) {
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$context = new RequestContext;
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$context->setRequest( new FauxRequest( array( 'action' => 'centralauthtoken' ) ) );
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$context->setUser( $user );
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$api = new ApiMain( $context );
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$api->execute();
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return $api->getResult()->getResultData( array( 'centralauthtoken', 'centralauthtoken' ) );
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}
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/**
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* @param array $wikis
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* @param array $params
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* @return array
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*/
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protected function getForeignNotifications( array $wikis, array $params ) {
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$apis = $this->foreignNotifications->getApiEndpoints( $wikis );
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if ( !$apis ) {
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return array();
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}
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// Don't request cross-wiki notifications
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unset( $params['notcrosswikisummary'] );
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$params['format'] = 'php';
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$reqs = array();
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foreach ( $apis as $wiki => $api ) {
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$reqs[$wiki] = array(
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'method' => 'GET',
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'url' => $api['url'],
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// Only request data from that specific wiki, or they'd all spawn
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// cross-wiki api requests...
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'query' => array_merge( $params, array( 'notwikis' => $wiki ) ),
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);
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}
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$http = new MultiHttpClient( array() );
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$responses = $http->runMulti( $reqs );
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$results = array();
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foreach ( $responses as $wiki => $response ) {
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$statusCode = $response['response']['code'];
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if ( $statusCode >= 200 && $statusCode <= 299 ) {
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$parsed = unserialize( $response['response']['body'] );
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if ( $parsed ) {
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$results[$wiki] = $parsed['query']['notifications'];
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}
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}
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}
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return $results;
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}
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/**
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* @param array $results
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* @param array $params
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* @return mixed
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*/
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protected function mergeResults( array $results, array $params ) {
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$master = array_shift( $results );
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if ( in_array( 'list', $params['prop'] ) ) {
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$master = $this->mergeList( $master, $results, $params['groupbysection'] );
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}
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if ( in_array( 'count', $params['prop'] ) && !$this->crossWikiSummary ) {
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// if crosswiki data was requested, the count in $master
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// is accurate already
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// otherwise, we'll want to combine counts for all wikis
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$master = $this->mergeCount( $master, $results, $params['groupbysection'] );
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}
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return $master;
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}
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/**
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* @param array $master
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* @param array $results
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* @param bool $groupBySection
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* @return array
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*/
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protected function mergeList( array $master, array $results, $groupBySection ) {
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// sort all notifications by timestamp: most recent first
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$sort = function( $a, $b ) {
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return $a['timestamp']['utcunix'] - $b['timestamp']['utcunix'];
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};
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if ( $groupBySection ) {
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foreach ( EchoAttributeManager::$sections as $section ) {
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foreach ( $results as $result ) {
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$master[$section]['list'] = array_merge( $master[$section]['list'], $result[$section]['list'] );
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}
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usort( $master[$section]['list'], $sort );
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}
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} else {
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foreach ( $results as $result ) {
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$master['list'] = array_merge( $master['list'], $result['list'] );
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}
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usort( $master['list'], $sort );
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}
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return $master;
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}
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/**
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* @param array $master
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* @param array $results
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* @param bool $groupBySection
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* @return array
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*/
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protected function mergeCount( array $master, array $results, $groupBySection ) {
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if ( $groupBySection ) {
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foreach ( EchoAttributeManager::$sections as $section ) {
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foreach ( $results as $result ) {
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$master[$section]['rawcount'] += $result[$section]['rawcount'];
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}
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$master[$section]['count'] = EchoNotificationController::formatNotificationCount( $master[$section]['rawcount'] );
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}
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}
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foreach ( $results as $result ) {
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// regardless of groupbysection, totals are always included
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$master['rawcount'] += $result['rawcount'];
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}
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$master['count'] = EchoNotificationController::formatNotificationCount( $master['rawcount'] );
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return $master;
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}
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public function getAllowedParams() {
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global $wgConf;
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$sections = EchoAttributeManager::$sections;
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$params = array(
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'filter' => array(
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ApiBase::PARAM_ISMULTI => true,
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ApiBase::PARAM_DFLT => 'read|!read',
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ApiBase::PARAM_TYPE => array(
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'read',
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'!read',
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),
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),
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'prop' => array(
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ApiBase::PARAM_ISMULTI => true,
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ApiBase::PARAM_TYPE => array(
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'list',
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'count',
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),
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ApiBase::PARAM_DFLT => 'list',
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),
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'sections' => array(
|
|
ApiBase::PARAM_DFLT => implode( '|', $sections ),
|
|
ApiBase::PARAM_TYPE => $sections,
|
|
ApiBase::PARAM_ISMULTI => true,
|
|
),
|
|
'groupbysection' => array(
|
|
ApiBase::PARAM_TYPE => 'boolean',
|
|
ApiBase::PARAM_DFLT => false,
|
|
),
|
|
'format' => array(
|
|
ApiBase::PARAM_TYPE => array(
|
|
'text',
|
|
'model',
|
|
'special',
|
|
'flyout', /* @deprecated */
|
|
'html', /* @deprecated */
|
|
),
|
|
ApiBase::PARAM_HELP_MSG_PER_VALUE => array(),
|
|
),
|
|
// fetch notifications from multiple wikis
|
|
'wikis' => array(
|
|
ApiBase::PARAM_ISMULTI => true,
|
|
ApiBase::PARAM_DFLT => wfWikiId(),
|
|
ApiBase::PARAM_TYPE => array_unique( array_merge( $wgConf->wikis, array( wfWikiId() ) ) ),
|
|
),
|
|
// create "x notifications from y wikis" notification bundle &
|
|
// include unread counts from other wikis in prop=count results
|
|
'crosswikisummary' => array(
|
|
ApiBase::PARAM_TYPE => 'boolean',
|
|
ApiBase::PARAM_DFLT => false,
|
|
),
|
|
'limit' => array(
|
|
ApiBase::PARAM_TYPE => 'limit',
|
|
ApiBase::PARAM_DFLT => 20,
|
|
ApiBase::PARAM_MIN => 1,
|
|
ApiBase::PARAM_MAX => ApiBase::LIMIT_SML1,
|
|
ApiBase::PARAM_MAX2 => ApiBase::LIMIT_SML2,
|
|
),
|
|
'continue' => array(
|
|
ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
|
|
),
|
|
'unreadfirst' => array(
|
|
ApiBase::PARAM_TYPE => 'boolean',
|
|
ApiBase::PARAM_DFLT => false,
|
|
),
|
|
);
|
|
foreach ( $sections as $section ) {
|
|
$params[$section . 'continue'] = null;
|
|
$params[$section . 'unreadfirst'] = array(
|
|
ApiBase::PARAM_TYPE => 'boolean',
|
|
ApiBase::PARAM_DFLT => false,
|
|
);
|
|
}
|
|
|
|
return $params;
|
|
}
|
|
|
|
/**
|
|
* @see ApiBase::getExamplesMessages()
|
|
*/
|
|
protected function getExamplesMessages() {
|
|
return array(
|
|
'action=query&meta=notifications'
|
|
=> 'apihelp-query+notifications-example-1',
|
|
'action=query&meta=notifications¬prop=count¬sections=alert|message¬groupbysection=1'
|
|
=> 'apihelp-query+notifications-example-2',
|
|
);
|
|
}
|
|
|
|
public function getHelpUrls() {
|
|
return 'https://www.mediawiki.org/wiki/Echo_(Notifications)/API';
|
|
}
|
|
}
|