mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Echo
synced 2024-11-12 09:26:05 +00:00
291 lines
8.7 KiB
PHP
291 lines
8.7 KiB
PHP
<?php
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class EchoNotificationController {
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/**
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* Retrieves number of unread notifications that a user has.
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*
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* @param $user User object to check notifications for
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* @param $cached bool Set to false to bypass the cache.
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* @param $dbSource string use master or slave database to pull count
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* @return Integer: Number of unread notifications.
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*/
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public static function getNotificationCount( $user, $cached = true, $dbSource = DB_SLAVE ) {
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global $wgMemc;
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if ( $user->isAnon() ) {
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return 0;
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}
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$memcKey = wfMemcKey( 'echo-notification-count', $user->getId() );
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if ( $cached && $wgMemc->get( $memcKey ) !== false ) {
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return $wgMemc->get( $memcKey );
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}
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// double check
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if ( !in_array( $dbSource, array( DB_SLAVE, DB_MASTER ) ) ) {
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$dbSource = DB_SLAVE;
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}
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$db = wfGetDB( $dbSource );
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$res = $db->selectRow(
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array( 'echo_notification', 'echo_event' ),
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array( 'num' => 'COUNT(notification_event)' ),
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array(
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'notification_user' => $user->getId(),
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'notification_read_timestamp' => null,
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'event_type' => EchoEvent::gatherValidEchoEvents(),
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),
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__METHOD__,
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array(),
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array(
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'echo_event' => array( 'LEFT JOIN', 'notification_event=event_id' ),
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)
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);
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if ( $res ) {
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$count = $res->num;
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} else {
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$count = 0;
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}
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$wgMemc->set( $memcKey, $count, 86400 );
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return $count;
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}
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/**
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* See if a user is eligible to recieve a certain type of notification
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* (based on user groups, not user preferences)
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*
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* @param $user User object
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* @param $notificationType string A notification type defined in $wgEchoEventDetails
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* @return boolean
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*/
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public static function getNotificationEligibility( $user, $notificationType ) {
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global $wgEchoEventDetails;
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$usersGroups = $user->getGroups();
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if ( isset( $wgEchoEventDetails[$notificationType]['usergroups'] ) ) {
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$allowedGroups = $wgEchoEventDetails[$notificationType]['usergroups'];
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if ( !array_intersect( $usersGroups, $allowedGroups ) ) {
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return false;
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}
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}
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return true;
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}
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/**
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* Retrieves formatted number of unread notifications that a user has.
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*
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* @param $user User object to check notifications for
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* @param $cached bool Set to false to bypass the cache.
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* @param $dbSource string use master or slave database to pull count
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* @return String: Number of unread notifications.
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*/
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public static function getFormattedNotificationCount( $user, $cached = true, $dbSource = DB_SLAVE ) {
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return self::formatNotificationCount(
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self::getNotificationCount( $user, $cached, $dbSource )
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);
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}
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/**
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* Format the notification count with Language::formatNum(). In addition, for large count,
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* return abbreviated version, e.g. 99+
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* @param $count int
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* @return string - formatted number
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*/
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public static function formatNotificationCount( $count ) {
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global $wgLang, $wgEchoMaxNotificationCount;
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if ( $count > $wgEchoMaxNotificationCount ) {
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$count = wfMessage(
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'echo-notification-count',
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$wgLang->formatNum( $wgEchoMaxNotificationCount )
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)->escaped();
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} else {
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$count = $wgLang->formatNum( $count );
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}
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return $count;
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}
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/**
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* Mark one or more notifications read for a user.
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*
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* @param $user User object to mark items read for.
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* @param $eventIDs Array of event IDs to mark read
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*/
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public static function markRead( $user, $eventIDs ) {
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$dbw = wfGetDB( DB_MASTER );
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$eventIDs = array_filter( (array)$eventIDs, 'is_numeric' );
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$dbw->update( 'echo_notification',
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array( 'notification_read_timestamp' => $dbw->timestamp( wfTimestampNow() ) ),
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array(
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'notification_user' => $user->getId(),
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'notification_event' => $eventIDs,
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),
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__METHOD__
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);
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self::resetNotificationCount( $user, DB_MASTER );
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}
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/**
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* Recalculates the number of notifications that a user has.
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*
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* @param $user User object
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* @param $dbSource string use master or slave database to pull count
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*/
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public static function resetNotificationCount( $user, $dbSource = DB_SLAVE ) {
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self::getNotificationCount( $user, false, $dbSource );
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}
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/**
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* Processes notifications for a newly-created EchoEvent
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*
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* @param $event EchoEvent to do notifications for
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* @param $defer bool Defer to job queue
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*/
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public static function notify( $event, $defer = true ) {
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if ( $defer ) {
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$title = $event->getTitle() ? $event->getTitle() : Title::newMainPage();
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$job = new EchoNotificationJob( $title, array( 'event' => $event ) );
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$job->insert();
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return;
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}
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// Check if the event object still has an enabled type. The check is necessary because an extension could
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// get turned off and we may still have un-processed event type in the queue
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if ( !$event->isEnabledEvent() ) {
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return false;
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}
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if ( $event->getType() == 'welcome' ) { // Welcome events should only be sent to the new user, no need for subscriptions.
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self::doNotification( $event, $event->getAgent(), 'notify' );
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} else {
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$subscriptions = self::getSubscriptionsForEvent( $event );
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foreach ( $subscriptions as $subscription ) {
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$user = $subscription->getUser();
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$notifyTypes = $subscription->getNotificationTypes();
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$notifyTypes = array_keys( array_filter( $notifyTypes ) );
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wfRunHooks( 'EchoGetNotificationTypes', array( $subscription, $event, &$notifyTypes ) );
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foreach ( $notifyTypes as $type ) {
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self::doNotification( $event, $user, $type );
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}
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}
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}
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}
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/**
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* Processes a single notification for an EchoEvent
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*
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* @param $event EchoEvent to do a notification for.
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* @param $user User object to notify.
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* @param $type string The type of notification delivery to process, e.g. 'email'.
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* @throws MWException
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*/
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public static function doNotification( $event, $user, $type ) {
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global $wgEchoNotifiers;
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if ( !isset( $wgEchoNotifiers[$type] ) ) {
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throw new MWException( "Invalid notification type $type" );
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}
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call_user_func_array( $wgEchoNotifiers[$type], array( $user, $event ) );
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}
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/**
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* Retrieves an array of EchoSubscription objects applicable to an EchoEvent.
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*
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* @param $event EchoEvent to retrieve EchoSubscriptions for.
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* @return Array of EchoSubscription objects.
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*/
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protected static function getSubscriptionsForEvent( $event ) {
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$dbr = wfGetDB( DB_SLAVE );
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$conds = array( 'sub_event_type' => $event->getType() );
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if ( $event->getTitle() ) {
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$conds['sub_page_namespace'] = $event->getTitle()->getNamespace();
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$conds['sub_page_title'] = $event->getTitle()->getDBkey();
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}
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$res = $dbr->select( 'echo_subscription', '*', $conds, __METHOD__,
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array( 'order by' => 'sub_user asc' ) );
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$subscriptions = array();
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$rowCollection = array();
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$lastUser = null;
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foreach ( $res as $row ) {
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if ( $lastUser && $row->sub_user != $lastUser ) {
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$subscriptions[$lastUser] = EchoSubscription::newFromRows( $rowCollection );
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$rowCollection = array();
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}
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$rowCollection[] = $row;
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$lastUser = $row->sub_user;
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}
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if ( count( $rowCollection ) ) {
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$subscriptions[$lastUser] = EchoSubscription::newFromRows( $rowCollection );
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}
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$users = array();
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wfRunHooks( 'EchoGetDefaultNotifiedUsers', array( $event, &$users ) );
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foreach ( $users as $u ) {
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if ( !isset( $subscriptions[$u->getId()] ) ) {
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$subscriptions[$u->getId()] = new EchoSubscription( $u, $event->getType(), $event->getTitle() );
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}
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}
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// Don't notify the person who made the edit, that's a bit silly.
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if ( $event->getAgent() ) {
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unset( $subscriptions[$event->getAgent()->getId()] );
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}
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return $subscriptions;
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}
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/**
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* Formats a notification
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*
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* @param $event EchoEvent that the notification is for.
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* @param $user User to format the notification for.
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* @param $format string The format to show the notification in: text, html, or email
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* @param $type string The type of notification being distributed (e.g. email, notify)
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* @return string|array The formatted notification, or an array of subject
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* and body (for emails), or an error message
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*/
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public static function formatNotification( $event, $user, $format = 'text', $type = 'notify' ) {
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global $wgEchoNotificationFormatters;
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$eventType = $event->getType();
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static $runHook = true;
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// this hook should only be executed once to gather valid formatter
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if ( $runHook ) {
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// allow extensions to define their own notification formatter
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wfRunHooks( 'BeforeFormatEchoNotification', array( &$wgEchoNotificationFormatters ) );
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$runHook = false;
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}
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if ( isset( $wgEchoNotificationFormatters[$eventType] ) ) {
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$params = $wgEchoNotificationFormatters[$eventType];
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$notifier = EchoNotificationFormatter::factory( $params );
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$notifier->setOutputFormat( $format );
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return $notifier->format( $event, $user, $type );
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}
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return Xml::tags( 'span', array( 'class' => 'error' ),
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wfMessage( 'echo-error-no-formatter', $event->getType() )->escaped() );
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}
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}
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