mediawiki-extensions-Echo/controller/NotificationController.php

266 lines
8.1 KiB
PHP
Raw Normal View History

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